diff options
Diffstat (limited to 'drivers')
155 files changed, 0 insertions, 58875 deletions
diff --git a/drivers/SCsub b/drivers/SCsub index 98849b431e..5effc6b2d4 100644 --- a/drivers/SCsub +++ b/drivers/SCsub @@ -26,8 +26,6 @@ if (env['openssl']!='no'): SConscript("png/SCsub"); -if (env["webp"]=="yes"): - SConscript("webp/SCsub"); if (env["builtin_zlib"]=="yes"): SConscript("builtin_zlib/SCsub"); diff --git a/drivers/register_driver_types.cpp b/drivers/register_driver_types.cpp index 9623c29b1a..cd4fcd18f2 100644 --- a/drivers/register_driver_types.cpp +++ b/drivers/register_driver_types.cpp @@ -30,7 +30,6 @@ #include "png/image_loader_png.h" #include "png/resource_saver_png.h" -#include "webp/image_loader_webp.h" #include "chibi/event_stream_chibi.h" @@ -72,10 +71,6 @@ static ImageLoaderPNG *image_loader_png=NULL; static ResourceSaverPNG *resource_saver_png=NULL; -#ifdef WEBP_ENABLED -static ImageLoaderWEBP *image_loader_webp=NULL; -#endif - #ifdef TREMOR_ENABLED static ResourceFormatLoaderAudioStreamOGG *vorbis_stream_loader=NULL; #endif @@ -109,11 +104,6 @@ void register_core_driver_types() { resource_saver_png = memnew( ResourceSaverPNG ); ResourceSaver::add_resource_format_saver(resource_saver_png); -#ifdef WEBP_ENABLED - image_loader_webp = memnew( ImageLoaderWEBP ); - ImageLoader::add_image_format_loader( image_loader_webp ); -#endif - ObjectTypeDB::register_type<RegEx>(); } @@ -123,12 +113,6 @@ void unregister_core_driver_types() { memdelete( image_loader_png ); if (resource_saver_png) memdelete( resource_saver_png ); - -#ifdef WEBP_ENABLED - if (image_loader_webp) - memdelete( image_loader_webp ); -#endif - } diff --git a/drivers/webp/AUTHORS b/drivers/webp/AUTHORS deleted file mode 100644 index 70423cb4dd..0000000000 --- a/drivers/webp/AUTHORS +++ /dev/null @@ -1,26 +0,0 @@ -Contributors: -- Charles Munger (clm at google dot com) -- Christian Duvivier (cduvivier at google dot com) -- Djordje Pesut (djordje dot pesut at imgtec dot com) -- James Zern (jzern at google dot com) -- Jan Engelhardt (jengelh at medozas dot de) -- Johann (johann dot koenig at duck dot com) -- Jovan Zelincevic (jovan dot zelincevic at imgtec dot com) -- Jyrki Alakuijala (jyrki at google dot com) -- levytamar82 (tamar dot levy at intel dot com) -- Lou Quillio (louquillio at google dot com) -- Mans Rullgard (mans at mansr dot com) -- Martin Olsson (mnemo at minimum dot se) -- MikoÅ‚aj Zalewski (mikolajz at google dot com) -- Noel Chromium (noel at chromium dot org) -- Pascal Massimino (pascal dot massimino at gmail dot com) -- PaweÅ‚ Hajdan, Jr (phajdan dot jr at chromium dot org) -- Pierre Joye (pierre dot php at gmail dot com) -- Sam Clegg (sbc at chromium dot org) -- Scott LaVarnway (slavarnway at google dot com) -- Scott Talbot (s at chikachow dot org) -- Slobodan Prijic (slobodan dot prijic at imgtec dot com) -- Somnath Banerjee (somnath dot banerjee at gmail dot com) -- Timothy Gu (timothygu99 at gmail dot com) -- Urvang Joshi (urvang at google dot com) -- Vikas Arora (vikasa at google dot com) diff --git a/drivers/webp/COPYING b/drivers/webp/COPYING deleted file mode 100644 index 7a6f99547d..0000000000 --- a/drivers/webp/COPYING +++ /dev/null @@ -1,30 +0,0 @@ -Copyright (c) 2010, Google Inc. All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are -met: - - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in - the documentation and/or other materials provided with the - distribution. - - * Neither the name of Google nor the names of its contributors may - be used to endorse or promote products derived from this software - without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - diff --git a/drivers/webp/PATENTS b/drivers/webp/PATENTS deleted file mode 100644 index caedf607e9..0000000000 --- a/drivers/webp/PATENTS +++ /dev/null @@ -1,23 +0,0 @@ -Additional IP Rights Grant (Patents) ------------------------------------- - -"These implementations" means the copyrightable works that implement the WebM -codecs distributed by Google as part of the WebM Project. - -Google hereby grants to you a perpetual, worldwide, non-exclusive, no-charge, -royalty-free, irrevocable (except as stated in this section) patent license to -make, have made, use, offer to sell, sell, import, transfer, and otherwise -run, modify and propagate the contents of these implementations of WebM, where -such license applies only to those patent claims, both currently owned by -Google and acquired in the future, licensable by Google that are necessarily -infringed by these implementations of WebM. This grant does not include claims -that would be infringed only as a consequence of further modification of these -implementations. If you or your agent or exclusive licensee institute or order -or agree to the institution of patent litigation or any other patent -enforcement activity against any entity (including a cross-claim or -counterclaim in a lawsuit) alleging that any of these implementations of WebM -or any code incorporated within any of these implementations of WebM -constitute direct or contributory patent infringement, or inducement of -patent infringement, then any patent rights granted to you under this License -for these implementations of WebM shall terminate as of the date such -litigation is filed. diff --git a/drivers/webp/SCsub b/drivers/webp/SCsub deleted file mode 100644 index f65bd13dba..0000000000 --- a/drivers/webp/SCsub +++ /dev/null @@ -1,115 +0,0 @@ -Import('env') - -webp_sources = [ -"webp/enc/webpenc.c",\ -"webp/enc/near_lossless.c",\ -"webp/enc/frame.c",\ -"webp/enc/alpha.c",\ -"webp/enc/picture_csp.c",\ -"webp/enc/vp8l.c",\ -"webp/enc/picture_psnr.c",\ -"webp/enc/delta_palettization.c",\ -"webp/enc/syntax.c",\ -"webp/enc/backward_references.c",\ -"webp/enc/token.c",\ -"webp/enc/analysis.c",\ -"webp/enc/iterator.c",\ -"webp/enc/picture_tools.c",\ -"webp/enc/picture_rescale.c",\ -"webp/enc/config.c",\ -"webp/enc/tree.c",\ -"webp/enc/cost.c",\ -"webp/enc/picture.c",\ -"webp/enc/quant.c",\ -"webp/enc/filter.c",\ -"webp/enc/histogram.c",\ -"webp/image_loader_webp.cpp",\ -"webp/utils/rescaler.c",\ -"webp/utils/filters.c",\ -"webp/utils/quant_levels_dec.c",\ -"webp/utils/huffman.c",\ -"webp/utils/thread.c",\ -"webp/utils/quant_levels.c",\ -"webp/utils/bit_writer.c",\ -"webp/utils/bit_reader.c",\ -"webp/utils/random.c",\ -"webp/utils/utils.c",\ -"webp/utils/huffman_encode.c",\ -"webp/utils/color_cache.c",\ -"webp/mux/muxinternal.c",\ -"webp/mux/muxread.c",\ -"webp/mux/anim_encode.c",\ -"webp/mux/muxedit.c",\ -"webp/dec/webp.c",\ -"webp/dec/frame.c",\ -"webp/dec/alpha.c",\ -"webp/dec/vp8l.c",\ -"webp/dec/io.c",\ -"webp/dec/vp8.c",\ -"webp/dec/idec.c",\ -"webp/dec/tree.c",\ -"webp/dec/buffer.c",\ -"webp/dec/quant.c",\ -"webp/demux/demux.c",\ -"webp/demux/anim_decode.c",\ -"webp/dsp/yuv.c",\ -"webp/dsp/filters_sse2.c",\ -"webp/dsp/dec_sse41.c",\ -"webp/dsp/rescaler.c",\ -"webp/dsp/lossless_sse2.c",\ -"webp/dsp/alpha_processing_sse41.c",\ -"webp/dsp/alpha_processing_sse2.c",\ -"webp/dsp/filters.c",\ -"webp/dsp/upsampling_mips_dsp_r2.c",\ -"webp/dsp/dec_neon.c",\ -"webp/dsp/enc_neon.c",\ -"webp/dsp/lossless_enc_mips32.c",\ -"webp/dsp/lossless_enc_sse2.c",\ -"webp/dsp/upsampling.c",\ -"webp/dsp/lossless_enc_neon.c",\ -"webp/dsp/alpha_processing.c",\ -"webp/dsp/cost_sse2.c",\ -"webp/dsp/dec_mips32.c",\ -"webp/dsp/enc_avx2.c",\ -"webp/dsp/rescaler_mips32.c",\ -"webp/dsp/enc.c",\ -"webp/dsp/lossless_enc_sse41.c",\ -"webp/dsp/cost_mips32.c",\ -"webp/dsp/lossless_mips_dsp_r2.c",\ -"webp/dsp/filters_mips_dsp_r2.c",\ -"webp/dsp/upsampling_neon.c",\ -"webp/dsp/alpha_processing_mips_dsp_r2.c",\ -"webp/dsp/enc_mips_dsp_r2.c",\ -"webp/dsp/lossless.c",\ -"webp/dsp/yuv_mips_dsp_r2.c",\ -"webp/dsp/cost_mips_dsp_r2.c",\ -"webp/dsp/argb.c",\ -"webp/dsp/dec_sse2.c",\ -"webp/dsp/rescaler_sse2.c",\ -"webp/dsp/enc_sse41.c",\ -"webp/dsp/argb_mips_dsp_r2.c",\ -"webp/dsp/lossless_enc_mips_dsp_r2.c",\ -"webp/dsp/dec_clip_tables.c",\ -"webp/dsp/yuv_mips32.c",\ -"webp/dsp/cpu.c",\ -"webp/dsp/dec.c",\ -"webp/dsp/argb_sse2.c",\ -"webp/dsp/lossless_neon.c",\ -"webp/dsp/lossless_enc.c",\ -"webp/dsp/enc_mips32.c",\ -"webp/dsp/cost.c",\ -"webp/dsp/rescaler_mips_dsp_r2.c",\ -"webp/dsp/dec_mips_dsp_r2.c",\ -"webp/dsp/rescaler_neon.c",\ -"webp/dsp/yuv_sse2.c",\ -"webp/dsp/enc_sse2.c",\ -"webp/dsp/upsampling_sse2.c" -] - -env.drivers_sources+=webp_sources - -#env.add_source_files(env.drivers_sources, webp_sources) - - -Export('env') - diff --git a/drivers/webp/config.h b/drivers/webp/config.h deleted file mode 100644 index 0ce1c7064d..0000000000 --- a/drivers/webp/config.h +++ /dev/null @@ -1,150 +0,0 @@ -/* src/webp/config.h.in. Generated from configure.ac by autoheader. */ - -/* Define if building universal (internal helper macro) */ -#undef AC_APPLE_UNIVERSAL_BUILD - -/* Set to 1 if __builtin_bswap16 is available */ -#undef HAVE_BUILTIN_BSWAP16 - -/* Set to 1 if __builtin_bswap32 is available */ -#undef HAVE_BUILTIN_BSWAP32 - -/* Set to 1 if __builtin_bswap64 is available */ -#undef HAVE_BUILTIN_BSWAP64 - -/* Define to 1 if you have the <dlfcn.h> header file. */ -#undef HAVE_DLFCN_H - -/* Define to 1 if you have the <GLUT/glut.h> header file. */ -#undef HAVE_GLUT_GLUT_H - -/* Define to 1 if you have the <GL/glut.h> header file. */ -#undef HAVE_GL_GLUT_H - -/* Define to 1 if you have the <inttypes.h> header file. */ -#undef HAVE_INTTYPES_H - -/* Define to 1 if you have the <memory.h> header file. */ -#undef HAVE_MEMORY_H - -/* Define to 1 if you have the <OpenGL/glut.h> header file. */ -#undef HAVE_OPENGL_GLUT_H - -/* Have PTHREAD_PRIO_INHERIT. */ -#undef HAVE_PTHREAD_PRIO_INHERIT - -/* Define to 1 if you have the <shlwapi.h> header file. */ -#undef HAVE_SHLWAPI_H - -/* Define to 1 if you have the <stdint.h> header file. */ -#undef HAVE_STDINT_H - -/* Define to 1 if you have the <stdlib.h> header file. */ -#undef HAVE_STDLIB_H - -/* Define to 1 if you have the <strings.h> header file. */ -#undef HAVE_STRINGS_H - -/* Define to 1 if you have the <string.h> header file. */ -#undef HAVE_STRING_H - -/* Define to 1 if you have the <sys/stat.h> header file. */ -#undef HAVE_SYS_STAT_H - -/* Define to 1 if you have the <sys/types.h> header file. */ -#undef HAVE_SYS_TYPES_H - -/* Define to 1 if you have the <unistd.h> header file. */ -#undef HAVE_UNISTD_H - -/* Define to 1 if you have the <wincodec.h> header file. */ -#undef HAVE_WINCODEC_H - -/* Define to 1 if you have the <windows.h> header file. */ -#undef HAVE_WINDOWS_H - -/* Define to the sub-directory in which libtool stores uninstalled libraries. - */ -#undef LT_OBJDIR - -/* Name of package */ -#undef PACKAGE - -/* Define to the address where bug reports for this package should be sent. */ -#undef PACKAGE_BUGREPORT - -/* Define to the full name of this package. */ -#undef PACKAGE_NAME - -/* Define to the full name and version of this package. */ -#undef PACKAGE_STRING - -/* Define to the one symbol short name of this package. */ -#undef PACKAGE_TARNAME - -/* Define to the home page for this package. */ -#undef PACKAGE_URL - -/* Define to the version of this package. */ -#undef PACKAGE_VERSION - -/* Define to necessary symbol if this constant uses a non-standard name on - your system. */ -#undef PTHREAD_CREATE_JOINABLE - -/* Define to 1 if you have the ANSI C header files. */ -#undef STDC_HEADERS - -/* Version number of package */ -#undef VERSION - -/* Enable experimental code */ -#undef WEBP_EXPERIMENTAL_FEATURES - -/* Define to 1 to force aligned memory operations */ -#undef WEBP_FORCE_ALIGNED - -/* Set to 1 if AVX2 is supported */ -#undef WEBP_HAVE_AVX2 - -/* Set to 1 if GIF library is installed */ -#undef WEBP_HAVE_GIF - -/* Set to 1 if OpenGL is supported */ -#undef WEBP_HAVE_GL - -/* Set to 1 if JPEG library is installed */ -#undef WEBP_HAVE_JPEG - -/* Set to 1 if NEON is supported */ -#undef WEBP_HAVE_NEON - -/* Set to 1 if runtime detection of NEON is enabled */ -#undef WEBP_HAVE_NEON_RTCD - -/* Set to 1 if PNG library is installed */ -#undef WEBP_HAVE_PNG - -/* Set to 1 if SSE2 is supported */ -#undef WEBP_HAVE_SSE2 - -/* Set to 1 if SSE4.1 is supported */ -#undef WEBP_HAVE_SSE41 - -/* Set to 1 if TIFF library is installed */ -#undef WEBP_HAVE_TIFF - -/* Undefine this to disable thread support. */ -#undef WEBP_USE_THREAD - -/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most - significant byte first (like Motorola and SPARC, unlike Intel). */ -#if defined AC_APPLE_UNIVERSAL_BUILD -# if defined __BIG_ENDIAN__ -# define WORDS_BIGENDIAN 1 -# endif -#else -# ifndef WORDS_BIGENDIAN -# undef WORDS_BIGENDIAN -# endif -#endif diff --git a/drivers/webp/dec/alpha.c b/drivers/webp/dec/alpha.c deleted file mode 100644 index 19ce548e96..0000000000 --- a/drivers/webp/dec/alpha.c +++ /dev/null @@ -1,232 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Alpha-plane decompression. -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <stdlib.h> -#include "./alphai.h" -#include "./vp8i.h" -#include "./vp8li.h" -#include "../dsp/dsp.h" -#include "../utils/quant_levels_dec.h" -#include "../utils/utils.h" -#include "webp/format_constants.h" - -//------------------------------------------------------------------------------ -// ALPHDecoder object. - -// Allocates a new alpha decoder instance. -static ALPHDecoder* ALPHNew(void) { - ALPHDecoder* const dec = (ALPHDecoder*)WebPSafeCalloc(1ULL, sizeof(*dec)); - return dec; -} - -// Clears and deallocates an alpha decoder instance. -static void ALPHDelete(ALPHDecoder* const dec) { - if (dec != NULL) { - VP8LDelete(dec->vp8l_dec_); - dec->vp8l_dec_ = NULL; - WebPSafeFree(dec); - } -} - -//------------------------------------------------------------------------------ -// Decoding. - -// Initialize alpha decoding by parsing the alpha header and decoding the image -// header for alpha data stored using lossless compression. -// Returns false in case of error in alpha header (data too short, invalid -// compression method or filter, error in lossless header data etc). -static int ALPHInit(ALPHDecoder* const dec, const uint8_t* data, - size_t data_size, const VP8Io* const src_io, - uint8_t* output) { - int ok = 0; - const uint8_t* const alpha_data = data + ALPHA_HEADER_LEN; - const size_t alpha_data_size = data_size - ALPHA_HEADER_LEN; - int rsrv; - VP8Io* const io = &dec->io_; - - assert(data != NULL && output != NULL && src_io != NULL); - - VP8FiltersInit(); - dec->output_ = output; - dec->width_ = src_io->width; - dec->height_ = src_io->height; - assert(dec->width_ > 0 && dec->height_ > 0); - - if (data_size <= ALPHA_HEADER_LEN) { - return 0; - } - - dec->method_ = (data[0] >> 0) & 0x03; - dec->filter_ = (data[0] >> 2) & 0x03; - dec->pre_processing_ = (data[0] >> 4) & 0x03; - rsrv = (data[0] >> 6) & 0x03; - if (dec->method_ < ALPHA_NO_COMPRESSION || - dec->method_ > ALPHA_LOSSLESS_COMPRESSION || - dec->filter_ >= WEBP_FILTER_LAST || - dec->pre_processing_ > ALPHA_PREPROCESSED_LEVELS || - rsrv != 0) { - return 0; - } - - // Copy the necessary parameters from src_io to io - VP8InitIo(io); - WebPInitCustomIo(NULL, io); - io->opaque = dec; - io->width = src_io->width; - io->height = src_io->height; - - io->use_cropping = src_io->use_cropping; - io->crop_left = src_io->crop_left; - io->crop_right = src_io->crop_right; - io->crop_top = src_io->crop_top; - io->crop_bottom = src_io->crop_bottom; - // No need to copy the scaling parameters. - - if (dec->method_ == ALPHA_NO_COMPRESSION) { - const size_t alpha_decoded_size = dec->width_ * dec->height_; - ok = (alpha_data_size >= alpha_decoded_size); - } else { - assert(dec->method_ == ALPHA_LOSSLESS_COMPRESSION); - ok = VP8LDecodeAlphaHeader(dec, alpha_data, alpha_data_size); - } - - return ok; -} - -// Decodes, unfilters and dequantizes *at least* 'num_rows' rows of alpha -// starting from row number 'row'. It assumes that rows up to (row - 1) have -// already been decoded. -// Returns false in case of bitstream error. -static int ALPHDecode(VP8Decoder* const dec, int row, int num_rows) { - ALPHDecoder* const alph_dec = dec->alph_dec_; - const int width = alph_dec->width_; - const int height = alph_dec->io_.crop_bottom; - if (alph_dec->method_ == ALPHA_NO_COMPRESSION) { - int y; - const uint8_t* prev_line = dec->alpha_prev_line_; - const uint8_t* deltas = dec->alpha_data_ + ALPHA_HEADER_LEN + row * width; - uint8_t* dst = dec->alpha_plane_ + row * width; - assert(deltas <= &dec->alpha_data_[dec->alpha_data_size_]); - if (alph_dec->filter_ != WEBP_FILTER_NONE) { - assert(WebPUnfilters[alph_dec->filter_] != NULL); - for (y = 0; y < num_rows; ++y) { - WebPUnfilters[alph_dec->filter_](prev_line, deltas, dst, width); - prev_line = dst; - dst += width; - deltas += width; - } - } else { - for (y = 0; y < num_rows; ++y) { - memcpy(dst, deltas, width * sizeof(*dst)); - prev_line = dst; - dst += width; - deltas += width; - } - } - dec->alpha_prev_line_ = prev_line; - } else { // alph_dec->method_ == ALPHA_LOSSLESS_COMPRESSION - assert(alph_dec->vp8l_dec_ != NULL); - if (!VP8LDecodeAlphaImageStream(alph_dec, row + num_rows)) { - return 0; - } - } - - if (row + num_rows >= height) { - dec->is_alpha_decoded_ = 1; - } - return 1; -} - -static int AllocateAlphaPlane(VP8Decoder* const dec, const VP8Io* const io) { - const int stride = io->width; - const int height = io->crop_bottom; - const uint64_t alpha_size = (uint64_t)stride * height; - assert(dec->alpha_plane_mem_ == NULL); - dec->alpha_plane_mem_ = - (uint8_t*)WebPSafeMalloc(alpha_size, sizeof(*dec->alpha_plane_)); - if (dec->alpha_plane_mem_ == NULL) { - return 0; - } - dec->alpha_plane_ = dec->alpha_plane_mem_; - dec->alpha_prev_line_ = NULL; - return 1; -} - -void WebPDeallocateAlphaMemory(VP8Decoder* const dec) { - assert(dec != NULL); - WebPSafeFree(dec->alpha_plane_mem_); - dec->alpha_plane_mem_ = NULL; - dec->alpha_plane_ = NULL; - ALPHDelete(dec->alph_dec_); - dec->alph_dec_ = NULL; -} - -//------------------------------------------------------------------------------ -// Main entry point. - -const uint8_t* VP8DecompressAlphaRows(VP8Decoder* const dec, - const VP8Io* const io, - int row, int num_rows) { - const int width = io->width; - const int height = io->crop_bottom; - - assert(dec != NULL && io != NULL); - - if (row < 0 || num_rows <= 0 || row + num_rows > height) { - return NULL; // sanity check. - } - - if (!dec->is_alpha_decoded_) { - if (dec->alph_dec_ == NULL) { // Initialize decoder. - dec->alph_dec_ = ALPHNew(); - if (dec->alph_dec_ == NULL) return NULL; - if (!AllocateAlphaPlane(dec, io)) goto Error; - if (!ALPHInit(dec->alph_dec_, dec->alpha_data_, dec->alpha_data_size_, - io, dec->alpha_plane_)) { - goto Error; - } - // if we allowed use of alpha dithering, check whether it's needed at all - if (dec->alph_dec_->pre_processing_ != ALPHA_PREPROCESSED_LEVELS) { - dec->alpha_dithering_ = 0; // disable dithering - } else { - num_rows = height - row; // decode everything in one pass - } - } - - assert(dec->alph_dec_ != NULL); - assert(row + num_rows <= height); - if (!ALPHDecode(dec, row, num_rows)) goto Error; - - if (dec->is_alpha_decoded_) { // finished? - ALPHDelete(dec->alph_dec_); - dec->alph_dec_ = NULL; - if (dec->alpha_dithering_ > 0) { - uint8_t* const alpha = dec->alpha_plane_ + io->crop_top * width - + io->crop_left; - if (!WebPDequantizeLevels(alpha, - io->crop_right - io->crop_left, - io->crop_bottom - io->crop_top, - width, dec->alpha_dithering_)) { - goto Error; - } - } - } - } - - // Return a pointer to the current decoded row. - return dec->alpha_plane_ + row * width; - - Error: - WebPDeallocateAlphaMemory(dec); - return NULL; -} diff --git a/drivers/webp/dec/alphai.h b/drivers/webp/dec/alphai.h deleted file mode 100644 index 69dd7c0f5d..0000000000 --- a/drivers/webp/dec/alphai.h +++ /dev/null @@ -1,54 +0,0 @@ -// Copyright 2013 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Alpha decoder: internal header. -// -// Author: Urvang (urvang@google.com) - -#ifndef WEBP_DEC_ALPHAI_H_ -#define WEBP_DEC_ALPHAI_H_ - -#include "./webpi.h" -#include "../utils/filters.h" - -#ifdef __cplusplus -extern "C" { -#endif - -struct VP8LDecoder; // Defined in dec/vp8li.h. - -typedef struct ALPHDecoder ALPHDecoder; -struct ALPHDecoder { - int width_; - int height_; - int method_; - WEBP_FILTER_TYPE filter_; - int pre_processing_; - struct VP8LDecoder* vp8l_dec_; - VP8Io io_; - int use_8b_decode_; // Although alpha channel requires only 1 byte per - // pixel, sometimes VP8LDecoder may need to allocate - // 4 bytes per pixel internally during decode. - uint8_t* output_; - const uint8_t* prev_line_; // last output row (or NULL) -}; - -//------------------------------------------------------------------------------ -// internal functions. Not public. - -// Deallocate memory associated to dec->alpha_plane_ decoding -void WebPDeallocateAlphaMemory(VP8Decoder* const dec); - -//------------------------------------------------------------------------------ - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_DEC_ALPHAI_H_ */ diff --git a/drivers/webp/dec/buffer.c b/drivers/webp/dec/buffer.c deleted file mode 100644 index 547e69b434..0000000000 --- a/drivers/webp/dec/buffer.c +++ /dev/null @@ -1,300 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Everything about WebPDecBuffer -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <stdlib.h> - -#include "./vp8i.h" -#include "./webpi.h" -#include "../utils/utils.h" - -//------------------------------------------------------------------------------ -// WebPDecBuffer - -// Number of bytes per pixel for the different color-spaces. -static const int kModeBpp[MODE_LAST] = { - 3, 4, 3, 4, 4, 2, 2, - 4, 4, 4, 2, // pre-multiplied modes - 1, 1 }; - -// Check that webp_csp_mode is within the bounds of WEBP_CSP_MODE. -// Convert to an integer to handle both the unsigned/signed enum cases -// without the need for casting to remove type limit warnings. -static int IsValidColorspace(int webp_csp_mode) { - return (webp_csp_mode >= MODE_RGB && webp_csp_mode < MODE_LAST); -} - -// strictly speaking, the very last (or first, if flipped) row -// doesn't require padding. -#define MIN_BUFFER_SIZE(WIDTH, HEIGHT, STRIDE) \ - (uint64_t)(STRIDE) * ((HEIGHT) - 1) + (WIDTH) - -static VP8StatusCode CheckDecBuffer(const WebPDecBuffer* const buffer) { - int ok = 1; - const WEBP_CSP_MODE mode = buffer->colorspace; - const int width = buffer->width; - const int height = buffer->height; - if (!IsValidColorspace(mode)) { - ok = 0; - } else if (!WebPIsRGBMode(mode)) { // YUV checks - const WebPYUVABuffer* const buf = &buffer->u.YUVA; - const int uv_width = (width + 1) / 2; - const int uv_height = (height + 1) / 2; - const int y_stride = abs(buf->y_stride); - const int u_stride = abs(buf->u_stride); - const int v_stride = abs(buf->v_stride); - const int a_stride = abs(buf->a_stride); - const uint64_t y_size = MIN_BUFFER_SIZE(width, height, y_stride); - const uint64_t u_size = MIN_BUFFER_SIZE(uv_width, uv_height, u_stride); - const uint64_t v_size = MIN_BUFFER_SIZE(uv_width, uv_height, v_stride); - const uint64_t a_size = MIN_BUFFER_SIZE(width, height, a_stride); - ok &= (y_size <= buf->y_size); - ok &= (u_size <= buf->u_size); - ok &= (v_size <= buf->v_size); - ok &= (y_stride >= width); - ok &= (u_stride >= uv_width); - ok &= (v_stride >= uv_width); - ok &= (buf->y != NULL); - ok &= (buf->u != NULL); - ok &= (buf->v != NULL); - if (mode == MODE_YUVA) { - ok &= (a_stride >= width); - ok &= (a_size <= buf->a_size); - ok &= (buf->a != NULL); - } - } else { // RGB checks - const WebPRGBABuffer* const buf = &buffer->u.RGBA; - const int stride = abs(buf->stride); - const uint64_t size = MIN_BUFFER_SIZE(width, height, stride); - ok &= (size <= buf->size); - ok &= (stride >= width * kModeBpp[mode]); - ok &= (buf->rgba != NULL); - } - return ok ? VP8_STATUS_OK : VP8_STATUS_INVALID_PARAM; -} -#undef MIN_BUFFER_SIZE - -static VP8StatusCode AllocateBuffer(WebPDecBuffer* const buffer) { - const int w = buffer->width; - const int h = buffer->height; - const WEBP_CSP_MODE mode = buffer->colorspace; - - if (w <= 0 || h <= 0 || !IsValidColorspace(mode)) { - return VP8_STATUS_INVALID_PARAM; - } - - if (buffer->is_external_memory <= 0 && buffer->private_memory == NULL) { - uint8_t* output; - int uv_stride = 0, a_stride = 0; - uint64_t uv_size = 0, a_size = 0, total_size; - // We need memory and it hasn't been allocated yet. - // => initialize output buffer, now that dimensions are known. - const int stride = w * kModeBpp[mode]; - const uint64_t size = (uint64_t)stride * h; - - if (!WebPIsRGBMode(mode)) { - uv_stride = (w + 1) / 2; - uv_size = (uint64_t)uv_stride * ((h + 1) / 2); - if (mode == MODE_YUVA) { - a_stride = w; - a_size = (uint64_t)a_stride * h; - } - } - total_size = size + 2 * uv_size + a_size; - - // Security/sanity checks - output = (uint8_t*)WebPSafeMalloc(total_size, sizeof(*output)); - if (output == NULL) { - return VP8_STATUS_OUT_OF_MEMORY; - } - buffer->private_memory = output; - - if (!WebPIsRGBMode(mode)) { // YUVA initialization - WebPYUVABuffer* const buf = &buffer->u.YUVA; - buf->y = output; - buf->y_stride = stride; - buf->y_size = (size_t)size; - buf->u = output + size; - buf->u_stride = uv_stride; - buf->u_size = (size_t)uv_size; - buf->v = output + size + uv_size; - buf->v_stride = uv_stride; - buf->v_size = (size_t)uv_size; - if (mode == MODE_YUVA) { - buf->a = output + size + 2 * uv_size; - } - buf->a_size = (size_t)a_size; - buf->a_stride = a_stride; - } else { // RGBA initialization - WebPRGBABuffer* const buf = &buffer->u.RGBA; - buf->rgba = output; - buf->stride = stride; - buf->size = (size_t)size; - } - } - return CheckDecBuffer(buffer); -} - -VP8StatusCode WebPFlipBuffer(WebPDecBuffer* const buffer) { - if (buffer == NULL) { - return VP8_STATUS_INVALID_PARAM; - } - if (WebPIsRGBMode(buffer->colorspace)) { - WebPRGBABuffer* const buf = &buffer->u.RGBA; - buf->rgba += (buffer->height - 1) * buf->stride; - buf->stride = -buf->stride; - } else { - WebPYUVABuffer* const buf = &buffer->u.YUVA; - const int H = buffer->height; - buf->y += (H - 1) * buf->y_stride; - buf->y_stride = -buf->y_stride; - buf->u += ((H - 1) >> 1) * buf->u_stride; - buf->u_stride = -buf->u_stride; - buf->v += ((H - 1) >> 1) * buf->v_stride; - buf->v_stride = -buf->v_stride; - if (buf->a != NULL) { - buf->a += (H - 1) * buf->a_stride; - buf->a_stride = -buf->a_stride; - } - } - return VP8_STATUS_OK; -} - -VP8StatusCode WebPAllocateDecBuffer(int w, int h, - const WebPDecoderOptions* const options, - WebPDecBuffer* const out) { - VP8StatusCode status; - if (out == NULL || w <= 0 || h <= 0) { - return VP8_STATUS_INVALID_PARAM; - } - if (options != NULL) { // First, apply options if there is any. - if (options->use_cropping) { - const int cw = options->crop_width; - const int ch = options->crop_height; - const int x = options->crop_left & ~1; - const int y = options->crop_top & ~1; - if (x < 0 || y < 0 || cw <= 0 || ch <= 0 || x + cw > w || y + ch > h) { - return VP8_STATUS_INVALID_PARAM; // out of frame boundary. - } - w = cw; - h = ch; - } - if (options->use_scaling) { - int scaled_width = options->scaled_width; - int scaled_height = options->scaled_height; - if (!WebPRescalerGetScaledDimensions( - w, h, &scaled_width, &scaled_height)) { - return VP8_STATUS_INVALID_PARAM; - } - w = scaled_width; - h = scaled_height; - } - } - out->width = w; - out->height = h; - - // Then, allocate buffer for real. - status = AllocateBuffer(out); - if (status != VP8_STATUS_OK) return status; - - // Use the stride trick if vertical flip is needed. - if (options != NULL && options->flip) { - status = WebPFlipBuffer(out); - } - return status; -} - -//------------------------------------------------------------------------------ -// constructors / destructors - -int WebPInitDecBufferInternal(WebPDecBuffer* buffer, int version) { - if (WEBP_ABI_IS_INCOMPATIBLE(version, WEBP_DECODER_ABI_VERSION)) { - return 0; // version mismatch - } - if (buffer == NULL) return 0; - memset(buffer, 0, sizeof(*buffer)); - return 1; -} - -void WebPFreeDecBuffer(WebPDecBuffer* buffer) { - if (buffer != NULL) { - if (buffer->is_external_memory <= 0) { - WebPSafeFree(buffer->private_memory); - } - buffer->private_memory = NULL; - } -} - -void WebPCopyDecBuffer(const WebPDecBuffer* const src, - WebPDecBuffer* const dst) { - if (src != NULL && dst != NULL) { - *dst = *src; - if (src->private_memory != NULL) { - dst->is_external_memory = 1; // dst buffer doesn't own the memory. - dst->private_memory = NULL; - } - } -} - -// Copy and transfer ownership from src to dst (beware of parameter order!) -void WebPGrabDecBuffer(WebPDecBuffer* const src, WebPDecBuffer* const dst) { - if (src != NULL && dst != NULL) { - *dst = *src; - if (src->private_memory != NULL) { - src->is_external_memory = 1; // src relinquishes ownership - src->private_memory = NULL; - } - } -} - -VP8StatusCode WebPCopyDecBufferPixels(const WebPDecBuffer* const src_buf, - WebPDecBuffer* const dst_buf) { - assert(src_buf != NULL && dst_buf != NULL); - assert(src_buf->colorspace == dst_buf->colorspace); - - dst_buf->width = src_buf->width; - dst_buf->height = src_buf->height; - if (CheckDecBuffer(dst_buf) != VP8_STATUS_OK) { - return VP8_STATUS_INVALID_PARAM; - } - if (WebPIsRGBMode(src_buf->colorspace)) { - const WebPRGBABuffer* const src = &src_buf->u.RGBA; - const WebPRGBABuffer* const dst = &dst_buf->u.RGBA; - WebPCopyPlane(src->rgba, src->stride, dst->rgba, dst->stride, - src_buf->width * kModeBpp[src_buf->colorspace], - src_buf->height); - } else { - const WebPYUVABuffer* const src = &src_buf->u.YUVA; - const WebPYUVABuffer* const dst = &dst_buf->u.YUVA; - WebPCopyPlane(src->y, src->y_stride, dst->y, dst->y_stride, - src_buf->width, src_buf->height); - WebPCopyPlane(src->u, src->u_stride, dst->u, dst->u_stride, - (src_buf->width + 1) / 2, (src_buf->height + 1) / 2); - WebPCopyPlane(src->v, src->v_stride, dst->v, dst->v_stride, - (src_buf->width + 1) / 2, (src_buf->height + 1) / 2); - if (WebPIsAlphaMode(src_buf->colorspace)) { - WebPCopyPlane(src->a, src->a_stride, dst->a, dst->a_stride, - src_buf->width, src_buf->height); - } - } - return VP8_STATUS_OK; -} - -int WebPAvoidSlowMemory(const WebPDecBuffer* const output, - const WebPBitstreamFeatures* const features) { - assert(output != NULL); - return (output->is_external_memory >= 2) && - WebPIsPremultipliedMode(output->colorspace) && - (features != NULL && features->has_alpha); -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/dec/common.h b/drivers/webp/dec/common.h deleted file mode 100644 index 6961e22470..0000000000 --- a/drivers/webp/dec/common.h +++ /dev/null @@ -1,54 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Definitions and macros common to encoding and decoding -// -// Author: Skal (pascal.massimino@gmail.com) - -#ifndef WEBP_DEC_COMMON_H_ -#define WEBP_DEC_COMMON_H_ - -// intra prediction modes -enum { B_DC_PRED = 0, // 4x4 modes - B_TM_PRED = 1, - B_VE_PRED = 2, - B_HE_PRED = 3, - B_RD_PRED = 4, - B_VR_PRED = 5, - B_LD_PRED = 6, - B_VL_PRED = 7, - B_HD_PRED = 8, - B_HU_PRED = 9, - NUM_BMODES = B_HU_PRED + 1 - B_DC_PRED, // = 10 - - // Luma16 or UV modes - DC_PRED = B_DC_PRED, V_PRED = B_VE_PRED, - H_PRED = B_HE_PRED, TM_PRED = B_TM_PRED, - B_PRED = NUM_BMODES, // refined I4x4 mode - NUM_PRED_MODES = 4, - - // special modes - B_DC_PRED_NOTOP = 4, - B_DC_PRED_NOLEFT = 5, - B_DC_PRED_NOTOPLEFT = 6, - NUM_B_DC_MODES = 7 }; - -enum { MB_FEATURE_TREE_PROBS = 3, - NUM_MB_SEGMENTS = 4, - NUM_REF_LF_DELTAS = 4, - NUM_MODE_LF_DELTAS = 4, // I4x4, ZERO, *, SPLIT - MAX_NUM_PARTITIONS = 8, - // Probabilities - NUM_TYPES = 4, // 0: i16-AC, 1: i16-DC, 2:chroma-AC, 3:i4-AC - NUM_BANDS = 8, - NUM_CTX = 3, - NUM_PROBAS = 11 - }; - -#endif // WEBP_DEC_COMMON_H_ diff --git a/drivers/webp/dec/decode_vp8.h b/drivers/webp/dec/decode_vp8.h deleted file mode 100644 index 2bf1bdbbf5..0000000000 --- a/drivers/webp/dec/decode_vp8.h +++ /dev/null @@ -1,185 +0,0 @@ -// Copyright 2010 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Low-level API for VP8 decoder -// -// Author: Skal (pascal.massimino@gmail.com) - -#ifndef WEBP_WEBP_DECODE_VP8_H_ -#define WEBP_WEBP_DECODE_VP8_H_ - -#include "webp/decode.h" - -#ifdef __cplusplus -extern "C" { -#endif - -//------------------------------------------------------------------------------ -// Lower-level API -// -// These functions provide fine-grained control of the decoding process. -// The call flow should resemble: -// -// VP8Io io; -// VP8InitIo(&io); -// io.data = data; -// io.data_size = size; -// /* customize io's functions (setup()/put()/teardown()) if needed. */ -// -// VP8Decoder* dec = VP8New(); -// bool ok = VP8Decode(dec); -// if (!ok) printf("Error: %s\n", VP8StatusMessage(dec)); -// VP8Delete(dec); -// return ok; - -// Input / Output -typedef struct VP8Io VP8Io; -typedef int (*VP8IoPutHook)(const VP8Io* io); -typedef int (*VP8IoSetupHook)(VP8Io* io); -typedef void (*VP8IoTeardownHook)(const VP8Io* io); - -struct VP8Io { - // set by VP8GetHeaders() - int width, height; // picture dimensions, in pixels (invariable). - // These are the original, uncropped dimensions. - // The actual area passed to put() is stored - // in mb_w / mb_h fields. - - // set before calling put() - int mb_y; // position of the current rows (in pixels) - int mb_w; // number of columns in the sample - int mb_h; // number of rows in the sample - const uint8_t* y, *u, *v; // rows to copy (in yuv420 format) - int y_stride; // row stride for luma - int uv_stride; // row stride for chroma - - void* opaque; // user data - - // called when fresh samples are available. Currently, samples are in - // YUV420 format, and can be up to width x 24 in size (depending on the - // in-loop filtering level, e.g.). Should return false in case of error - // or abort request. The actual size of the area to update is mb_w x mb_h - // in size, taking cropping into account. - VP8IoPutHook put; - - // called just before starting to decode the blocks. - // Must return false in case of setup error, true otherwise. If false is - // returned, teardown() will NOT be called. But if the setup succeeded - // and true is returned, then teardown() will always be called afterward. - VP8IoSetupHook setup; - - // Called just after block decoding is finished (or when an error occurred - // during put()). Is NOT called if setup() failed. - VP8IoTeardownHook teardown; - - // this is a recommendation for the user-side yuv->rgb converter. This flag - // is set when calling setup() hook and can be overwritten by it. It then - // can be taken into consideration during the put() method. - int fancy_upsampling; - - // Input buffer. - size_t data_size; - const uint8_t* data; - - // If true, in-loop filtering will not be performed even if present in the - // bitstream. Switching off filtering may speed up decoding at the expense - // of more visible blocking. Note that output will also be non-compliant - // with the VP8 specifications. - int bypass_filtering; - - // Cropping parameters. - int use_cropping; - int crop_left, crop_right, crop_top, crop_bottom; - - // Scaling parameters. - int use_scaling; - int scaled_width, scaled_height; - - // If non NULL, pointer to the alpha data (if present) corresponding to the - // start of the current row (That is: it is pre-offset by mb_y and takes - // cropping into account). - const uint8_t* a; -}; - -// Internal, version-checked, entry point -int VP8InitIoInternal(VP8Io* const, int); - -// Set the custom IO function pointers and user-data. The setter for IO hooks -// should be called before initiating incremental decoding. Returns true if -// WebPIDecoder object is successfully modified, false otherwise. -int WebPISetIOHooks(WebPIDecoder* const idec, - VP8IoPutHook put, - VP8IoSetupHook setup, - VP8IoTeardownHook teardown, - void* user_data); - -// Main decoding object. This is an opaque structure. -typedef struct VP8Decoder VP8Decoder; - -// Create a new decoder object. -VP8Decoder* VP8New(void); - -// Must be called to make sure 'io' is initialized properly. -// Returns false in case of version mismatch. Upon such failure, no other -// decoding function should be called (VP8Decode, VP8GetHeaders, ...) -static WEBP_INLINE int VP8InitIo(VP8Io* const io) { - return VP8InitIoInternal(io, WEBP_DECODER_ABI_VERSION); -} - -// Decode the VP8 frame header. Returns true if ok. -// Note: 'io->data' must be pointing to the start of the VP8 frame header. -int VP8GetHeaders(VP8Decoder* const dec, VP8Io* const io); - -// Decode a picture. Will call VP8GetHeaders() if it wasn't done already. -// Returns false in case of error. -int VP8Decode(VP8Decoder* const dec, VP8Io* const io); - -// Return current status of the decoder: -VP8StatusCode VP8Status(VP8Decoder* const dec); - -// return readable string corresponding to the last status. -const char* VP8StatusMessage(VP8Decoder* const dec); - -// Resets the decoder in its initial state, reclaiming memory. -// Not a mandatory call between calls to VP8Decode(). -void VP8Clear(VP8Decoder* const dec); - -// Destroy the decoder object. -void VP8Delete(VP8Decoder* const dec); - -//------------------------------------------------------------------------------ -// Miscellaneous VP8/VP8L bitstream probing functions. - -// Returns true if the next 3 bytes in data contain the VP8 signature. -WEBP_EXTERN(int) VP8CheckSignature(const uint8_t* const data, size_t data_size); - -// Validates the VP8 data-header and retrieves basic header information viz -// width and height. Returns 0 in case of formatting error. *width/*height -// can be passed NULL. -WEBP_EXTERN(int) VP8GetInfo( - const uint8_t* data, - size_t data_size, // data available so far - size_t chunk_size, // total data size expected in the chunk - int* const width, int* const height); - -// Returns true if the next byte(s) in data is a VP8L signature. -WEBP_EXTERN(int) VP8LCheckSignature(const uint8_t* const data, size_t size); - -// Validates the VP8L data-header and retrieves basic header information viz -// width, height and alpha. Returns 0 in case of formatting error. -// width/height/has_alpha can be passed NULL. -WEBP_EXTERN(int) VP8LGetInfo( - const uint8_t* data, size_t data_size, // data available so far - int* const width, int* const height, int* const has_alpha); - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_WEBP_DECODE_VP8_H_ */ diff --git a/drivers/webp/dec/frame.c b/drivers/webp/dec/frame.c deleted file mode 100644 index 22d291d2cd..0000000000 --- a/drivers/webp/dec/frame.c +++ /dev/null @@ -1,812 +0,0 @@ -// Copyright 2010 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Frame-reconstruction function. Memory allocation. -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <stdlib.h> -#include "./vp8i.h" -#include "../utils/utils.h" - -//------------------------------------------------------------------------------ -// Main reconstruction function. - -static const int kScan[16] = { - 0 + 0 * BPS, 4 + 0 * BPS, 8 + 0 * BPS, 12 + 0 * BPS, - 0 + 4 * BPS, 4 + 4 * BPS, 8 + 4 * BPS, 12 + 4 * BPS, - 0 + 8 * BPS, 4 + 8 * BPS, 8 + 8 * BPS, 12 + 8 * BPS, - 0 + 12 * BPS, 4 + 12 * BPS, 8 + 12 * BPS, 12 + 12 * BPS -}; - -static int CheckMode(int mb_x, int mb_y, int mode) { - if (mode == B_DC_PRED) { - if (mb_x == 0) { - return (mb_y == 0) ? B_DC_PRED_NOTOPLEFT : B_DC_PRED_NOLEFT; - } else { - return (mb_y == 0) ? B_DC_PRED_NOTOP : B_DC_PRED; - } - } - return mode; -} - -static void Copy32b(uint8_t* const dst, const uint8_t* const src) { - memcpy(dst, src, 4); -} - -static WEBP_INLINE void DoTransform(uint32_t bits, const int16_t* const src, - uint8_t* const dst) { - switch (bits >> 30) { - case 3: - VP8Transform(src, dst, 0); - break; - case 2: - VP8TransformAC3(src, dst); - break; - case 1: - VP8TransformDC(src, dst); - break; - default: - break; - } -} - -static void DoUVTransform(uint32_t bits, const int16_t* const src, - uint8_t* const dst) { - if (bits & 0xff) { // any non-zero coeff at all? - if (bits & 0xaa) { // any non-zero AC coefficient? - VP8TransformUV(src, dst); // note we don't use the AC3 variant for U/V - } else { - VP8TransformDCUV(src, dst); - } - } -} - -static void ReconstructRow(const VP8Decoder* const dec, - const VP8ThreadContext* ctx) { - int j; - int mb_x; - const int mb_y = ctx->mb_y_; - const int cache_id = ctx->id_; - uint8_t* const y_dst = dec->yuv_b_ + Y_OFF; - uint8_t* const u_dst = dec->yuv_b_ + U_OFF; - uint8_t* const v_dst = dec->yuv_b_ + V_OFF; - - // Initialize left-most block. - for (j = 0; j < 16; ++j) { - y_dst[j * BPS - 1] = 129; - } - for (j = 0; j < 8; ++j) { - u_dst[j * BPS - 1] = 129; - v_dst[j * BPS - 1] = 129; - } - - // Init top-left sample on left column too. - if (mb_y > 0) { - y_dst[-1 - BPS] = u_dst[-1 - BPS] = v_dst[-1 - BPS] = 129; - } else { - // we only need to do this init once at block (0,0). - // Afterward, it remains valid for the whole topmost row. - memset(y_dst - BPS - 1, 127, 16 + 4 + 1); - memset(u_dst - BPS - 1, 127, 8 + 1); - memset(v_dst - BPS - 1, 127, 8 + 1); - } - - // Reconstruct one row. - for (mb_x = 0; mb_x < dec->mb_w_; ++mb_x) { - const VP8MBData* const block = ctx->mb_data_ + mb_x; - - // Rotate in the left samples from previously decoded block. We move four - // pixels at a time for alignment reason, and because of in-loop filter. - if (mb_x > 0) { - for (j = -1; j < 16; ++j) { - Copy32b(&y_dst[j * BPS - 4], &y_dst[j * BPS + 12]); - } - for (j = -1; j < 8; ++j) { - Copy32b(&u_dst[j * BPS - 4], &u_dst[j * BPS + 4]); - Copy32b(&v_dst[j * BPS - 4], &v_dst[j * BPS + 4]); - } - } - { - // bring top samples into the cache - VP8TopSamples* const top_yuv = dec->yuv_t_ + mb_x; - const int16_t* const coeffs = block->coeffs_; - uint32_t bits = block->non_zero_y_; - int n; - - if (mb_y > 0) { - memcpy(y_dst - BPS, top_yuv[0].y, 16); - memcpy(u_dst - BPS, top_yuv[0].u, 8); - memcpy(v_dst - BPS, top_yuv[0].v, 8); - } - - // predict and add residuals - if (block->is_i4x4_) { // 4x4 - uint32_t* const top_right = (uint32_t*)(y_dst - BPS + 16); - - if (mb_y > 0) { - if (mb_x >= dec->mb_w_ - 1) { // on rightmost border - memset(top_right, top_yuv[0].y[15], sizeof(*top_right)); - } else { - memcpy(top_right, top_yuv[1].y, sizeof(*top_right)); - } - } - // replicate the top-right pixels below - top_right[BPS] = top_right[2 * BPS] = top_right[3 * BPS] = top_right[0]; - - // predict and add residuals for all 4x4 blocks in turn. - for (n = 0; n < 16; ++n, bits <<= 2) { - uint8_t* const dst = y_dst + kScan[n]; - VP8PredLuma4[block->imodes_[n]](dst); - DoTransform(bits, coeffs + n * 16, dst); - } - } else { // 16x16 - const int pred_func = CheckMode(mb_x, mb_y, block->imodes_[0]); - VP8PredLuma16[pred_func](y_dst); - if (bits != 0) { - for (n = 0; n < 16; ++n, bits <<= 2) { - DoTransform(bits, coeffs + n * 16, y_dst + kScan[n]); - } - } - } - { - // Chroma - const uint32_t bits_uv = block->non_zero_uv_; - const int pred_func = CheckMode(mb_x, mb_y, block->uvmode_); - VP8PredChroma8[pred_func](u_dst); - VP8PredChroma8[pred_func](v_dst); - DoUVTransform(bits_uv >> 0, coeffs + 16 * 16, u_dst); - DoUVTransform(bits_uv >> 8, coeffs + 20 * 16, v_dst); - } - - // stash away top samples for next block - if (mb_y < dec->mb_h_ - 1) { - memcpy(top_yuv[0].y, y_dst + 15 * BPS, 16); - memcpy(top_yuv[0].u, u_dst + 7 * BPS, 8); - memcpy(top_yuv[0].v, v_dst + 7 * BPS, 8); - } - } - // Transfer reconstructed samples from yuv_b_ cache to final destination. - { - const int y_offset = cache_id * 16 * dec->cache_y_stride_; - const int uv_offset = cache_id * 8 * dec->cache_uv_stride_; - uint8_t* const y_out = dec->cache_y_ + mb_x * 16 + y_offset; - uint8_t* const u_out = dec->cache_u_ + mb_x * 8 + uv_offset; - uint8_t* const v_out = dec->cache_v_ + mb_x * 8 + uv_offset; - for (j = 0; j < 16; ++j) { - memcpy(y_out + j * dec->cache_y_stride_, y_dst + j * BPS, 16); - } - for (j = 0; j < 8; ++j) { - memcpy(u_out + j * dec->cache_uv_stride_, u_dst + j * BPS, 8); - memcpy(v_out + j * dec->cache_uv_stride_, v_dst + j * BPS, 8); - } - } - } -} - -//------------------------------------------------------------------------------ -// Filtering - -// kFilterExtraRows[] = How many extra lines are needed on the MB boundary -// for caching, given a filtering level. -// Simple filter: up to 2 luma samples are read and 1 is written. -// Complex filter: up to 4 luma samples are read and 3 are written. Same for -// U/V, so it's 8 samples total (because of the 2x upsampling). -static const uint8_t kFilterExtraRows[3] = { 0, 2, 8 }; - -static void DoFilter(const VP8Decoder* const dec, int mb_x, int mb_y) { - const VP8ThreadContext* const ctx = &dec->thread_ctx_; - const int cache_id = ctx->id_; - const int y_bps = dec->cache_y_stride_; - const VP8FInfo* const f_info = ctx->f_info_ + mb_x; - uint8_t* const y_dst = dec->cache_y_ + cache_id * 16 * y_bps + mb_x * 16; - const int ilevel = f_info->f_ilevel_; - const int limit = f_info->f_limit_; - if (limit == 0) { - return; - } - assert(limit >= 3); - if (dec->filter_type_ == 1) { // simple - if (mb_x > 0) { - VP8SimpleHFilter16(y_dst, y_bps, limit + 4); - } - if (f_info->f_inner_) { - VP8SimpleHFilter16i(y_dst, y_bps, limit); - } - if (mb_y > 0) { - VP8SimpleVFilter16(y_dst, y_bps, limit + 4); - } - if (f_info->f_inner_) { - VP8SimpleVFilter16i(y_dst, y_bps, limit); - } - } else { // complex - const int uv_bps = dec->cache_uv_stride_; - uint8_t* const u_dst = dec->cache_u_ + cache_id * 8 * uv_bps + mb_x * 8; - uint8_t* const v_dst = dec->cache_v_ + cache_id * 8 * uv_bps + mb_x * 8; - const int hev_thresh = f_info->hev_thresh_; - if (mb_x > 0) { - VP8HFilter16(y_dst, y_bps, limit + 4, ilevel, hev_thresh); - VP8HFilter8(u_dst, v_dst, uv_bps, limit + 4, ilevel, hev_thresh); - } - if (f_info->f_inner_) { - VP8HFilter16i(y_dst, y_bps, limit, ilevel, hev_thresh); - VP8HFilter8i(u_dst, v_dst, uv_bps, limit, ilevel, hev_thresh); - } - if (mb_y > 0) { - VP8VFilter16(y_dst, y_bps, limit + 4, ilevel, hev_thresh); - VP8VFilter8(u_dst, v_dst, uv_bps, limit + 4, ilevel, hev_thresh); - } - if (f_info->f_inner_) { - VP8VFilter16i(y_dst, y_bps, limit, ilevel, hev_thresh); - VP8VFilter8i(u_dst, v_dst, uv_bps, limit, ilevel, hev_thresh); - } - } -} - -// Filter the decoded macroblock row (if needed) -static void FilterRow(const VP8Decoder* const dec) { - int mb_x; - const int mb_y = dec->thread_ctx_.mb_y_; - assert(dec->thread_ctx_.filter_row_); - for (mb_x = dec->tl_mb_x_; mb_x < dec->br_mb_x_; ++mb_x) { - DoFilter(dec, mb_x, mb_y); - } -} - -//------------------------------------------------------------------------------ -// Precompute the filtering strength for each segment and each i4x4/i16x16 mode. - -static void PrecomputeFilterStrengths(VP8Decoder* const dec) { - if (dec->filter_type_ > 0) { - int s; - const VP8FilterHeader* const hdr = &dec->filter_hdr_; - for (s = 0; s < NUM_MB_SEGMENTS; ++s) { - int i4x4; - // First, compute the initial level - int base_level; - if (dec->segment_hdr_.use_segment_) { - base_level = dec->segment_hdr_.filter_strength_[s]; - if (!dec->segment_hdr_.absolute_delta_) { - base_level += hdr->level_; - } - } else { - base_level = hdr->level_; - } - for (i4x4 = 0; i4x4 <= 1; ++i4x4) { - VP8FInfo* const info = &dec->fstrengths_[s][i4x4]; - int level = base_level; - if (hdr->use_lf_delta_) { - level += hdr->ref_lf_delta_[0]; - if (i4x4) { - level += hdr->mode_lf_delta_[0]; - } - } - level = (level < 0) ? 0 : (level > 63) ? 63 : level; - if (level > 0) { - int ilevel = level; - if (hdr->sharpness_ > 0) { - if (hdr->sharpness_ > 4) { - ilevel >>= 2; - } else { - ilevel >>= 1; - } - if (ilevel > 9 - hdr->sharpness_) { - ilevel = 9 - hdr->sharpness_; - } - } - if (ilevel < 1) ilevel = 1; - info->f_ilevel_ = ilevel; - info->f_limit_ = 2 * level + ilevel; - info->hev_thresh_ = (level >= 40) ? 2 : (level >= 15) ? 1 : 0; - } else { - info->f_limit_ = 0; // no filtering - } - info->f_inner_ = i4x4; - } - } - } -} - -//------------------------------------------------------------------------------ -// Dithering - -// minimal amp that will provide a non-zero dithering effect -#define MIN_DITHER_AMP 4 - -#define DITHER_AMP_TAB_SIZE 12 -static const int kQuantToDitherAmp[DITHER_AMP_TAB_SIZE] = { - // roughly, it's dqm->uv_mat_[1] - 8, 7, 6, 4, 4, 2, 2, 2, 1, 1, 1, 1 -}; - -void VP8InitDithering(const WebPDecoderOptions* const options, - VP8Decoder* const dec) { - assert(dec != NULL); - if (options != NULL) { - const int d = options->dithering_strength; - const int max_amp = (1 << VP8_RANDOM_DITHER_FIX) - 1; - const int f = (d < 0) ? 0 : (d > 100) ? max_amp : (d * max_amp / 100); - if (f > 0) { - int s; - int all_amp = 0; - for (s = 0; s < NUM_MB_SEGMENTS; ++s) { - VP8QuantMatrix* const dqm = &dec->dqm_[s]; - if (dqm->uv_quant_ < DITHER_AMP_TAB_SIZE) { - // TODO(skal): should we specially dither more for uv_quant_ < 0? - const int idx = (dqm->uv_quant_ < 0) ? 0 : dqm->uv_quant_; - dqm->dither_ = (f * kQuantToDitherAmp[idx]) >> 3; - } - all_amp |= dqm->dither_; - } - if (all_amp != 0) { - VP8InitRandom(&dec->dithering_rg_, 1.0f); - dec->dither_ = 1; - } - } - // potentially allow alpha dithering - dec->alpha_dithering_ = options->alpha_dithering_strength; - if (dec->alpha_dithering_ > 100) { - dec->alpha_dithering_ = 100; - } else if (dec->alpha_dithering_ < 0) { - dec->alpha_dithering_ = 0; - } - } -} - -// Convert to range: [-2,2] for dither=50, [-4,4] for dither=100 -static void Dither8x8(VP8Random* const rg, uint8_t* dst, int bps, int amp) { - uint8_t dither[64]; - int i; - for (i = 0; i < 8 * 8; ++i) { - dither[i] = VP8RandomBits2(rg, VP8_DITHER_AMP_BITS + 1, amp); - } - VP8DitherCombine8x8(dither, dst, bps); -} - -static void DitherRow(VP8Decoder* const dec) { - int mb_x; - assert(dec->dither_); - for (mb_x = dec->tl_mb_x_; mb_x < dec->br_mb_x_; ++mb_x) { - const VP8ThreadContext* const ctx = &dec->thread_ctx_; - const VP8MBData* const data = ctx->mb_data_ + mb_x; - const int cache_id = ctx->id_; - const int uv_bps = dec->cache_uv_stride_; - if (data->dither_ >= MIN_DITHER_AMP) { - uint8_t* const u_dst = dec->cache_u_ + cache_id * 8 * uv_bps + mb_x * 8; - uint8_t* const v_dst = dec->cache_v_ + cache_id * 8 * uv_bps + mb_x * 8; - Dither8x8(&dec->dithering_rg_, u_dst, uv_bps, data->dither_); - Dither8x8(&dec->dithering_rg_, v_dst, uv_bps, data->dither_); - } - } -} - -//------------------------------------------------------------------------------ -// This function is called after a row of macroblocks is finished decoding. -// It also takes into account the following restrictions: -// * In case of in-loop filtering, we must hold off sending some of the bottom -// pixels as they are yet unfiltered. They will be when the next macroblock -// row is decoded. Meanwhile, we must preserve them by rotating them in the -// cache area. This doesn't hold for the very bottom row of the uncropped -// picture of course. -// * we must clip the remaining pixels against the cropping area. The VP8Io -// struct must have the following fields set correctly before calling put(): - -#define MACROBLOCK_VPOS(mb_y) ((mb_y) * 16) // vertical position of a MB - -// Finalize and transmit a complete row. Return false in case of user-abort. -static int FinishRow(VP8Decoder* const dec, VP8Io* const io) { - int ok = 1; - const VP8ThreadContext* const ctx = &dec->thread_ctx_; - const int cache_id = ctx->id_; - const int extra_y_rows = kFilterExtraRows[dec->filter_type_]; - const int ysize = extra_y_rows * dec->cache_y_stride_; - const int uvsize = (extra_y_rows / 2) * dec->cache_uv_stride_; - const int y_offset = cache_id * 16 * dec->cache_y_stride_; - const int uv_offset = cache_id * 8 * dec->cache_uv_stride_; - uint8_t* const ydst = dec->cache_y_ - ysize + y_offset; - uint8_t* const udst = dec->cache_u_ - uvsize + uv_offset; - uint8_t* const vdst = dec->cache_v_ - uvsize + uv_offset; - const int mb_y = ctx->mb_y_; - const int is_first_row = (mb_y == 0); - const int is_last_row = (mb_y >= dec->br_mb_y_ - 1); - - if (dec->mt_method_ == 2) { - ReconstructRow(dec, ctx); - } - - if (ctx->filter_row_) { - FilterRow(dec); - } - - if (dec->dither_) { - DitherRow(dec); - } - - if (io->put != NULL) { - int y_start = MACROBLOCK_VPOS(mb_y); - int y_end = MACROBLOCK_VPOS(mb_y + 1); - if (!is_first_row) { - y_start -= extra_y_rows; - io->y = ydst; - io->u = udst; - io->v = vdst; - } else { - io->y = dec->cache_y_ + y_offset; - io->u = dec->cache_u_ + uv_offset; - io->v = dec->cache_v_ + uv_offset; - } - - if (!is_last_row) { - y_end -= extra_y_rows; - } - if (y_end > io->crop_bottom) { - y_end = io->crop_bottom; // make sure we don't overflow on last row. - } - io->a = NULL; - if (dec->alpha_data_ != NULL && y_start < y_end) { - // TODO(skal): testing presence of alpha with dec->alpha_data_ is not a - // good idea. - io->a = VP8DecompressAlphaRows(dec, io, y_start, y_end - y_start); - if (io->a == NULL) { - return VP8SetError(dec, VP8_STATUS_BITSTREAM_ERROR, - "Could not decode alpha data."); - } - } - if (y_start < io->crop_top) { - const int delta_y = io->crop_top - y_start; - y_start = io->crop_top; - assert(!(delta_y & 1)); - io->y += dec->cache_y_stride_ * delta_y; - io->u += dec->cache_uv_stride_ * (delta_y >> 1); - io->v += dec->cache_uv_stride_ * (delta_y >> 1); - if (io->a != NULL) { - io->a += io->width * delta_y; - } - } - if (y_start < y_end) { - io->y += io->crop_left; - io->u += io->crop_left >> 1; - io->v += io->crop_left >> 1; - if (io->a != NULL) { - io->a += io->crop_left; - } - io->mb_y = y_start - io->crop_top; - io->mb_w = io->crop_right - io->crop_left; - io->mb_h = y_end - y_start; - ok = io->put(io); - } - } - // rotate top samples if needed - if (cache_id + 1 == dec->num_caches_) { - if (!is_last_row) { - memcpy(dec->cache_y_ - ysize, ydst + 16 * dec->cache_y_stride_, ysize); - memcpy(dec->cache_u_ - uvsize, udst + 8 * dec->cache_uv_stride_, uvsize); - memcpy(dec->cache_v_ - uvsize, vdst + 8 * dec->cache_uv_stride_, uvsize); - } - } - - return ok; -} - -#undef MACROBLOCK_VPOS - -//------------------------------------------------------------------------------ - -int VP8ProcessRow(VP8Decoder* const dec, VP8Io* const io) { - int ok = 1; - VP8ThreadContext* const ctx = &dec->thread_ctx_; - const int filter_row = - (dec->filter_type_ > 0) && - (dec->mb_y_ >= dec->tl_mb_y_) && (dec->mb_y_ <= dec->br_mb_y_); - if (dec->mt_method_ == 0) { - // ctx->id_ and ctx->f_info_ are already set - ctx->mb_y_ = dec->mb_y_; - ctx->filter_row_ = filter_row; - ReconstructRow(dec, ctx); - ok = FinishRow(dec, io); - } else { - WebPWorker* const worker = &dec->worker_; - // Finish previous job *before* updating context - ok &= WebPGetWorkerInterface()->Sync(worker); - assert(worker->status_ == OK); - if (ok) { // spawn a new deblocking/output job - ctx->io_ = *io; - ctx->id_ = dec->cache_id_; - ctx->mb_y_ = dec->mb_y_; - ctx->filter_row_ = filter_row; - if (dec->mt_method_ == 2) { // swap macroblock data - VP8MBData* const tmp = ctx->mb_data_; - ctx->mb_data_ = dec->mb_data_; - dec->mb_data_ = tmp; - } else { - // perform reconstruction directly in main thread - ReconstructRow(dec, ctx); - } - if (filter_row) { // swap filter info - VP8FInfo* const tmp = ctx->f_info_; - ctx->f_info_ = dec->f_info_; - dec->f_info_ = tmp; - } - // (reconstruct)+filter in parallel - WebPGetWorkerInterface()->Launch(worker); - if (++dec->cache_id_ == dec->num_caches_) { - dec->cache_id_ = 0; - } - } - } - return ok; -} - -//------------------------------------------------------------------------------ -// Finish setting up the decoding parameter once user's setup() is called. - -VP8StatusCode VP8EnterCritical(VP8Decoder* const dec, VP8Io* const io) { - // Call setup() first. This may trigger additional decoding features on 'io'. - // Note: Afterward, we must call teardown() no matter what. - if (io->setup != NULL && !io->setup(io)) { - VP8SetError(dec, VP8_STATUS_USER_ABORT, "Frame setup failed"); - return dec->status_; - } - - // Disable filtering per user request - if (io->bypass_filtering) { - dec->filter_type_ = 0; - } - // TODO(skal): filter type / strength / sharpness forcing - - // Define the area where we can skip in-loop filtering, in case of cropping. - // - // 'Simple' filter reads two luma samples outside of the macroblock - // and filters one. It doesn't filter the chroma samples. Hence, we can - // avoid doing the in-loop filtering before crop_top/crop_left position. - // For the 'Complex' filter, 3 samples are read and up to 3 are filtered. - // Means: there's a dependency chain that goes all the way up to the - // top-left corner of the picture (MB #0). We must filter all the previous - // macroblocks. - // TODO(skal): add an 'approximate_decoding' option, that won't produce - // a 1:1 bit-exactness for complex filtering? - { - const int extra_pixels = kFilterExtraRows[dec->filter_type_]; - if (dec->filter_type_ == 2) { - // For complex filter, we need to preserve the dependency chain. - dec->tl_mb_x_ = 0; - dec->tl_mb_y_ = 0; - } else { - // For simple filter, we can filter only the cropped region. - // We include 'extra_pixels' on the other side of the boundary, since - // vertical or horizontal filtering of the previous macroblock can - // modify some abutting pixels. - dec->tl_mb_x_ = (io->crop_left - extra_pixels) >> 4; - dec->tl_mb_y_ = (io->crop_top - extra_pixels) >> 4; - if (dec->tl_mb_x_ < 0) dec->tl_mb_x_ = 0; - if (dec->tl_mb_y_ < 0) dec->tl_mb_y_ = 0; - } - // We need some 'extra' pixels on the right/bottom. - dec->br_mb_y_ = (io->crop_bottom + 15 + extra_pixels) >> 4; - dec->br_mb_x_ = (io->crop_right + 15 + extra_pixels) >> 4; - if (dec->br_mb_x_ > dec->mb_w_) { - dec->br_mb_x_ = dec->mb_w_; - } - if (dec->br_mb_y_ > dec->mb_h_) { - dec->br_mb_y_ = dec->mb_h_; - } - } - PrecomputeFilterStrengths(dec); - return VP8_STATUS_OK; -} - -int VP8ExitCritical(VP8Decoder* const dec, VP8Io* const io) { - int ok = 1; - if (dec->mt_method_ > 0) { - ok = WebPGetWorkerInterface()->Sync(&dec->worker_); - } - - if (io->teardown != NULL) { - io->teardown(io); - } - return ok; -} - -//------------------------------------------------------------------------------ -// For multi-threaded decoding we need to use 3 rows of 16 pixels as delay line. -// -// Reason is: the deblocking filter cannot deblock the bottom horizontal edges -// immediately, and needs to wait for first few rows of the next macroblock to -// be decoded. Hence, deblocking is lagging behind by 4 or 8 pixels (depending -// on strength). -// With two threads, the vertical positions of the rows being decoded are: -// Decode: [ 0..15][16..31][32..47][48..63][64..79][... -// Deblock: [ 0..11][12..27][28..43][44..59][... -// If we use two threads and two caches of 16 pixels, the sequence would be: -// Decode: [ 0..15][16..31][ 0..15!!][16..31][ 0..15][... -// Deblock: [ 0..11][12..27!!][-4..11][12..27][... -// The problem occurs during row [12..15!!] that both the decoding and -// deblocking threads are writing simultaneously. -// With 3 cache lines, one get a safe write pattern: -// Decode: [ 0..15][16..31][32..47][ 0..15][16..31][32..47][0.. -// Deblock: [ 0..11][12..27][28..43][-4..11][12..27][28... -// Note that multi-threaded output _without_ deblocking can make use of two -// cache lines of 16 pixels only, since there's no lagging behind. The decoding -// and output process have non-concurrent writing: -// Decode: [ 0..15][16..31][ 0..15][16..31][... -// io->put: [ 0..15][16..31][ 0..15][... - -#define MT_CACHE_LINES 3 -#define ST_CACHE_LINES 1 // 1 cache row only for single-threaded case - -// Initialize multi/single-thread worker -static int InitThreadContext(VP8Decoder* const dec) { - dec->cache_id_ = 0; - if (dec->mt_method_ > 0) { - WebPWorker* const worker = &dec->worker_; - if (!WebPGetWorkerInterface()->Reset(worker)) { - return VP8SetError(dec, VP8_STATUS_OUT_OF_MEMORY, - "thread initialization failed."); - } - worker->data1 = dec; - worker->data2 = (void*)&dec->thread_ctx_.io_; - worker->hook = (WebPWorkerHook)FinishRow; - dec->num_caches_ = - (dec->filter_type_ > 0) ? MT_CACHE_LINES : MT_CACHE_LINES - 1; - } else { - dec->num_caches_ = ST_CACHE_LINES; - } - return 1; -} - -int VP8GetThreadMethod(const WebPDecoderOptions* const options, - const WebPHeaderStructure* const headers, - int width, int height) { - if (options == NULL || options->use_threads == 0) { - return 0; - } - (void)headers; - (void)width; - (void)height; - assert(headers == NULL || !headers->is_lossless); -#if defined(WEBP_USE_THREAD) - if (width < MIN_WIDTH_FOR_THREADS) return 0; - // TODO(skal): tune the heuristic further -#if 0 - if (height < 2 * width) return 2; -#endif - return 2; -#else // !WEBP_USE_THREAD - return 0; -#endif -} - -#undef MT_CACHE_LINES -#undef ST_CACHE_LINES - -//------------------------------------------------------------------------------ -// Memory setup - -static int AllocateMemory(VP8Decoder* const dec) { - const int num_caches = dec->num_caches_; - const int mb_w = dec->mb_w_; - // Note: we use 'size_t' when there's no overflow risk, uint64_t otherwise. - const size_t intra_pred_mode_size = 4 * mb_w * sizeof(uint8_t); - const size_t top_size = sizeof(VP8TopSamples) * mb_w; - const size_t mb_info_size = (mb_w + 1) * sizeof(VP8MB); - const size_t f_info_size = - (dec->filter_type_ > 0) ? - mb_w * (dec->mt_method_ > 0 ? 2 : 1) * sizeof(VP8FInfo) - : 0; - const size_t yuv_size = YUV_SIZE * sizeof(*dec->yuv_b_); - const size_t mb_data_size = - (dec->mt_method_ == 2 ? 2 : 1) * mb_w * sizeof(*dec->mb_data_); - const size_t cache_height = (16 * num_caches - + kFilterExtraRows[dec->filter_type_]) * 3 / 2; - const size_t cache_size = top_size * cache_height; - // alpha_size is the only one that scales as width x height. - const uint64_t alpha_size = (dec->alpha_data_ != NULL) ? - (uint64_t)dec->pic_hdr_.width_ * dec->pic_hdr_.height_ : 0ULL; - const uint64_t needed = (uint64_t)intra_pred_mode_size - + top_size + mb_info_size + f_info_size - + yuv_size + mb_data_size - + cache_size + alpha_size + WEBP_ALIGN_CST; - uint8_t* mem; - - if (needed != (size_t)needed) return 0; // check for overflow - if (needed > dec->mem_size_) { - WebPSafeFree(dec->mem_); - dec->mem_size_ = 0; - dec->mem_ = WebPSafeMalloc(needed, sizeof(uint8_t)); - if (dec->mem_ == NULL) { - return VP8SetError(dec, VP8_STATUS_OUT_OF_MEMORY, - "no memory during frame initialization."); - } - // down-cast is ok, thanks to WebPSafeAlloc() above. - dec->mem_size_ = (size_t)needed; - } - - mem = (uint8_t*)dec->mem_; - dec->intra_t_ = (uint8_t*)mem; - mem += intra_pred_mode_size; - - dec->yuv_t_ = (VP8TopSamples*)mem; - mem += top_size; - - dec->mb_info_ = ((VP8MB*)mem) + 1; - mem += mb_info_size; - - dec->f_info_ = f_info_size ? (VP8FInfo*)mem : NULL; - mem += f_info_size; - dec->thread_ctx_.id_ = 0; - dec->thread_ctx_.f_info_ = dec->f_info_; - if (dec->mt_method_ > 0) { - // secondary cache line. The deblocking process need to make use of the - // filtering strength from previous macroblock row, while the new ones - // are being decoded in parallel. We'll just swap the pointers. - dec->thread_ctx_.f_info_ += mb_w; - } - - mem = (uint8_t*)WEBP_ALIGN(mem); - assert((yuv_size & WEBP_ALIGN_CST) == 0); - dec->yuv_b_ = (uint8_t*)mem; - mem += yuv_size; - - dec->mb_data_ = (VP8MBData*)mem; - dec->thread_ctx_.mb_data_ = (VP8MBData*)mem; - if (dec->mt_method_ == 2) { - dec->thread_ctx_.mb_data_ += mb_w; - } - mem += mb_data_size; - - dec->cache_y_stride_ = 16 * mb_w; - dec->cache_uv_stride_ = 8 * mb_w; - { - const int extra_rows = kFilterExtraRows[dec->filter_type_]; - const int extra_y = extra_rows * dec->cache_y_stride_; - const int extra_uv = (extra_rows / 2) * dec->cache_uv_stride_; - dec->cache_y_ = ((uint8_t*)mem) + extra_y; - dec->cache_u_ = dec->cache_y_ - + 16 * num_caches * dec->cache_y_stride_ + extra_uv; - dec->cache_v_ = dec->cache_u_ - + 8 * num_caches * dec->cache_uv_stride_ + extra_uv; - dec->cache_id_ = 0; - } - mem += cache_size; - - // alpha plane - dec->alpha_plane_ = alpha_size ? (uint8_t*)mem : NULL; - mem += alpha_size; - assert(mem <= (uint8_t*)dec->mem_ + dec->mem_size_); - - // note: left/top-info is initialized once for all. - memset(dec->mb_info_ - 1, 0, mb_info_size); - VP8InitScanline(dec); // initialize left too. - - // initialize top - memset(dec->intra_t_, B_DC_PRED, intra_pred_mode_size); - - return 1; -} - -static void InitIo(VP8Decoder* const dec, VP8Io* io) { - // prepare 'io' - io->mb_y = 0; - io->y = dec->cache_y_; - io->u = dec->cache_u_; - io->v = dec->cache_v_; - io->y_stride = dec->cache_y_stride_; - io->uv_stride = dec->cache_uv_stride_; - io->a = NULL; -} - -int VP8InitFrame(VP8Decoder* const dec, VP8Io* const io) { - if (!InitThreadContext(dec)) return 0; // call first. Sets dec->num_caches_. - if (!AllocateMemory(dec)) return 0; - InitIo(dec, io); - VP8DspInit(); // Init critical function pointers and look-up tables. - return 1; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/dec/idec.c b/drivers/webp/dec/idec.c deleted file mode 100644 index 8de131916e..0000000000 --- a/drivers/webp/dec/idec.c +++ /dev/null @@ -1,892 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Incremental decoding -// -// Author: somnath@google.com (Somnath Banerjee) - -#include <assert.h> -#include <string.h> -#include <stdlib.h> - -#include "./alphai.h" -#include "./webpi.h" -#include "./vp8i.h" -#include "../utils/utils.h" - -// In append mode, buffer allocations increase as multiples of this value. -// Needs to be a power of 2. -#define CHUNK_SIZE 4096 -#define MAX_MB_SIZE 4096 - -//------------------------------------------------------------------------------ -// Data structures for memory and states - -// Decoding states. State normally flows as: -// WEBP_HEADER->VP8_HEADER->VP8_PARTS0->VP8_DATA->DONE for a lossy image, and -// WEBP_HEADER->VP8L_HEADER->VP8L_DATA->DONE for a lossless image. -// If there is any error the decoder goes into state ERROR. -typedef enum { - STATE_WEBP_HEADER, // All the data before that of the VP8/VP8L chunk. - STATE_VP8_HEADER, // The VP8 Frame header (within the VP8 chunk). - STATE_VP8_PARTS0, - STATE_VP8_DATA, - STATE_VP8L_HEADER, - STATE_VP8L_DATA, - STATE_DONE, - STATE_ERROR -} DecState; - -// Operating state for the MemBuffer -typedef enum { - MEM_MODE_NONE = 0, - MEM_MODE_APPEND, - MEM_MODE_MAP -} MemBufferMode; - -// storage for partition #0 and partial data (in a rolling fashion) -typedef struct { - MemBufferMode mode_; // Operation mode - size_t start_; // start location of the data to be decoded - size_t end_; // end location - size_t buf_size_; // size of the allocated buffer - uint8_t* buf_; // We don't own this buffer in case WebPIUpdate() - - size_t part0_size_; // size of partition #0 - const uint8_t* part0_buf_; // buffer to store partition #0 -} MemBuffer; - -struct WebPIDecoder { - DecState state_; // current decoding state - WebPDecParams params_; // Params to store output info - int is_lossless_; // for down-casting 'dec_'. - void* dec_; // either a VP8Decoder or a VP8LDecoder instance - VP8Io io_; - - MemBuffer mem_; // input memory buffer. - WebPDecBuffer output_; // output buffer (when no external one is supplied, - // or if the external one has slow-memory) - WebPDecBuffer* final_output_; // Slow-memory output to copy to eventually. - size_t chunk_size_; // Compressed VP8/VP8L size extracted from Header. - - int last_mb_y_; // last row reached for intra-mode decoding -}; - -// MB context to restore in case VP8DecodeMB() fails -typedef struct { - VP8MB left_; - VP8MB info_; - VP8BitReader token_br_; -} MBContext; - -//------------------------------------------------------------------------------ -// MemBuffer: incoming data handling - -static WEBP_INLINE size_t MemDataSize(const MemBuffer* mem) { - return (mem->end_ - mem->start_); -} - -// Check if we need to preserve the compressed alpha data, as it may not have -// been decoded yet. -static int NeedCompressedAlpha(const WebPIDecoder* const idec) { - if (idec->state_ == STATE_WEBP_HEADER) { - // We haven't parsed the headers yet, so we don't know whether the image is - // lossy or lossless. This also means that we haven't parsed the ALPH chunk. - return 0; - } - if (idec->is_lossless_) { - return 0; // ALPH chunk is not present for lossless images. - } else { - const VP8Decoder* const dec = (VP8Decoder*)idec->dec_; - assert(dec != NULL); // Must be true as idec->state_ != STATE_WEBP_HEADER. - return (dec->alpha_data_ != NULL) && !dec->is_alpha_decoded_; - } -} - -static void DoRemap(WebPIDecoder* const idec, ptrdiff_t offset) { - MemBuffer* const mem = &idec->mem_; - const uint8_t* const new_base = mem->buf_ + mem->start_; - // note: for VP8, setting up idec->io_ is only really needed at the beginning - // of the decoding, till partition #0 is complete. - idec->io_.data = new_base; - idec->io_.data_size = MemDataSize(mem); - - if (idec->dec_ != NULL) { - if (!idec->is_lossless_) { - VP8Decoder* const dec = (VP8Decoder*)idec->dec_; - const uint32_t last_part = dec->num_parts_minus_one_; - if (offset != 0) { - uint32_t p; - for (p = 0; p <= last_part; ++p) { - VP8RemapBitReader(dec->parts_ + p, offset); - } - // Remap partition #0 data pointer to new offset, but only in MAP - // mode (in APPEND mode, partition #0 is copied into a fixed memory). - if (mem->mode_ == MEM_MODE_MAP) { - VP8RemapBitReader(&dec->br_, offset); - } - } - { - const uint8_t* const last_start = dec->parts_[last_part].buf_; - VP8BitReaderSetBuffer(&dec->parts_[last_part], last_start, - mem->buf_ + mem->end_ - last_start); - } - if (NeedCompressedAlpha(idec)) { - ALPHDecoder* const alph_dec = dec->alph_dec_; - dec->alpha_data_ += offset; - if (alph_dec != NULL) { - if (alph_dec->method_ == ALPHA_LOSSLESS_COMPRESSION) { - VP8LDecoder* const alph_vp8l_dec = alph_dec->vp8l_dec_; - assert(alph_vp8l_dec != NULL); - assert(dec->alpha_data_size_ >= ALPHA_HEADER_LEN); - VP8LBitReaderSetBuffer(&alph_vp8l_dec->br_, - dec->alpha_data_ + ALPHA_HEADER_LEN, - dec->alpha_data_size_ - ALPHA_HEADER_LEN); - } else { // alph_dec->method_ == ALPHA_NO_COMPRESSION - // Nothing special to do in this case. - } - } - } - } else { // Resize lossless bitreader - VP8LDecoder* const dec = (VP8LDecoder*)idec->dec_; - VP8LBitReaderSetBuffer(&dec->br_, new_base, MemDataSize(mem)); - } - } -} - -// Appends data to the end of MemBuffer->buf_. It expands the allocated memory -// size if required and also updates VP8BitReader's if new memory is allocated. -static int AppendToMemBuffer(WebPIDecoder* const idec, - const uint8_t* const data, size_t data_size) { - VP8Decoder* const dec = (VP8Decoder*)idec->dec_; - MemBuffer* const mem = &idec->mem_; - const int need_compressed_alpha = NeedCompressedAlpha(idec); - const uint8_t* const old_start = mem->buf_ + mem->start_; - const uint8_t* const old_base = - need_compressed_alpha ? dec->alpha_data_ : old_start; - assert(mem->mode_ == MEM_MODE_APPEND); - if (data_size > MAX_CHUNK_PAYLOAD) { - // security safeguard: trying to allocate more than what the format - // allows for a chunk should be considered a smoke smell. - return 0; - } - - if (mem->end_ + data_size > mem->buf_size_) { // Need some free memory - const size_t new_mem_start = old_start - old_base; - const size_t current_size = MemDataSize(mem) + new_mem_start; - const uint64_t new_size = (uint64_t)current_size + data_size; - const uint64_t extra_size = (new_size + CHUNK_SIZE - 1) & ~(CHUNK_SIZE - 1); - uint8_t* const new_buf = - (uint8_t*)WebPSafeMalloc(extra_size, sizeof(*new_buf)); - if (new_buf == NULL) return 0; - memcpy(new_buf, old_base, current_size); - WebPSafeFree(mem->buf_); - mem->buf_ = new_buf; - mem->buf_size_ = (size_t)extra_size; - mem->start_ = new_mem_start; - mem->end_ = current_size; - } - - memcpy(mem->buf_ + mem->end_, data, data_size); - mem->end_ += data_size; - assert(mem->end_ <= mem->buf_size_); - - DoRemap(idec, mem->buf_ + mem->start_ - old_start); - return 1; -} - -static int RemapMemBuffer(WebPIDecoder* const idec, - const uint8_t* const data, size_t data_size) { - MemBuffer* const mem = &idec->mem_; - const uint8_t* const old_buf = mem->buf_; - const uint8_t* const old_start = old_buf + mem->start_; - assert(mem->mode_ == MEM_MODE_MAP); - - if (data_size < mem->buf_size_) return 0; // can't remap to a shorter buffer! - - mem->buf_ = (uint8_t*)data; - mem->end_ = mem->buf_size_ = data_size; - - DoRemap(idec, mem->buf_ + mem->start_ - old_start); - return 1; -} - -static void InitMemBuffer(MemBuffer* const mem) { - mem->mode_ = MEM_MODE_NONE; - mem->buf_ = NULL; - mem->buf_size_ = 0; - mem->part0_buf_ = NULL; - mem->part0_size_ = 0; -} - -static void ClearMemBuffer(MemBuffer* const mem) { - assert(mem); - if (mem->mode_ == MEM_MODE_APPEND) { - WebPSafeFree(mem->buf_); - WebPSafeFree((void*)mem->part0_buf_); - } -} - -static int CheckMemBufferMode(MemBuffer* const mem, MemBufferMode expected) { - if (mem->mode_ == MEM_MODE_NONE) { - mem->mode_ = expected; // switch to the expected mode - } else if (mem->mode_ != expected) { - return 0; // we mixed the modes => error - } - assert(mem->mode_ == expected); // mode is ok - return 1; -} - -// To be called last. -static VP8StatusCode FinishDecoding(WebPIDecoder* const idec) { - const WebPDecoderOptions* const options = idec->params_.options; - WebPDecBuffer* const output = idec->params_.output; - - idec->state_ = STATE_DONE; - if (options != NULL && options->flip) { - const VP8StatusCode status = WebPFlipBuffer(output); - if (status != VP8_STATUS_OK) return status; - } - if (idec->final_output_ != NULL) { - WebPCopyDecBufferPixels(output, idec->final_output_); // do the slow-copy - WebPFreeDecBuffer(&idec->output_); - *output = *idec->final_output_; - idec->final_output_ = NULL; - } - return VP8_STATUS_OK; -} - -//------------------------------------------------------------------------------ -// Macroblock-decoding contexts - -static void SaveContext(const VP8Decoder* dec, const VP8BitReader* token_br, - MBContext* const context) { - context->left_ = dec->mb_info_[-1]; - context->info_ = dec->mb_info_[dec->mb_x_]; - context->token_br_ = *token_br; -} - -static void RestoreContext(const MBContext* context, VP8Decoder* const dec, - VP8BitReader* const token_br) { - dec->mb_info_[-1] = context->left_; - dec->mb_info_[dec->mb_x_] = context->info_; - *token_br = context->token_br_; -} - -//------------------------------------------------------------------------------ - -static VP8StatusCode IDecError(WebPIDecoder* const idec, VP8StatusCode error) { - if (idec->state_ == STATE_VP8_DATA) { - VP8Io* const io = &idec->io_; - if (io->teardown != NULL) { - io->teardown(io); - } - } - idec->state_ = STATE_ERROR; - return error; -} - -static void ChangeState(WebPIDecoder* const idec, DecState new_state, - size_t consumed_bytes) { - MemBuffer* const mem = &idec->mem_; - idec->state_ = new_state; - mem->start_ += consumed_bytes; - assert(mem->start_ <= mem->end_); - idec->io_.data = mem->buf_ + mem->start_; - idec->io_.data_size = MemDataSize(mem); -} - -// Headers -static VP8StatusCode DecodeWebPHeaders(WebPIDecoder* const idec) { - MemBuffer* const mem = &idec->mem_; - const uint8_t* data = mem->buf_ + mem->start_; - size_t curr_size = MemDataSize(mem); - VP8StatusCode status; - WebPHeaderStructure headers; - - headers.data = data; - headers.data_size = curr_size; - headers.have_all_data = 0; - status = WebPParseHeaders(&headers); - if (status == VP8_STATUS_NOT_ENOUGH_DATA) { - return VP8_STATUS_SUSPENDED; // We haven't found a VP8 chunk yet. - } else if (status != VP8_STATUS_OK) { - return IDecError(idec, status); - } - - idec->chunk_size_ = headers.compressed_size; - idec->is_lossless_ = headers.is_lossless; - if (!idec->is_lossless_) { - VP8Decoder* const dec = VP8New(); - if (dec == NULL) { - return VP8_STATUS_OUT_OF_MEMORY; - } - idec->dec_ = dec; - dec->alpha_data_ = headers.alpha_data; - dec->alpha_data_size_ = headers.alpha_data_size; - ChangeState(idec, STATE_VP8_HEADER, headers.offset); - } else { - VP8LDecoder* const dec = VP8LNew(); - if (dec == NULL) { - return VP8_STATUS_OUT_OF_MEMORY; - } - idec->dec_ = dec; - ChangeState(idec, STATE_VP8L_HEADER, headers.offset); - } - return VP8_STATUS_OK; -} - -static VP8StatusCode DecodeVP8FrameHeader(WebPIDecoder* const idec) { - const uint8_t* data = idec->mem_.buf_ + idec->mem_.start_; - const size_t curr_size = MemDataSize(&idec->mem_); - int width, height; - uint32_t bits; - - if (curr_size < VP8_FRAME_HEADER_SIZE) { - // Not enough data bytes to extract VP8 Frame Header. - return VP8_STATUS_SUSPENDED; - } - if (!VP8GetInfo(data, curr_size, idec->chunk_size_, &width, &height)) { - return IDecError(idec, VP8_STATUS_BITSTREAM_ERROR); - } - - bits = data[0] | (data[1] << 8) | (data[2] << 16); - idec->mem_.part0_size_ = (bits >> 5) + VP8_FRAME_HEADER_SIZE; - - idec->io_.data = data; - idec->io_.data_size = curr_size; - idec->state_ = STATE_VP8_PARTS0; - return VP8_STATUS_OK; -} - -// Partition #0 -static VP8StatusCode CopyParts0Data(WebPIDecoder* const idec) { - VP8Decoder* const dec = (VP8Decoder*)idec->dec_; - VP8BitReader* const br = &dec->br_; - const size_t part_size = br->buf_end_ - br->buf_; - MemBuffer* const mem = &idec->mem_; - assert(!idec->is_lossless_); - assert(mem->part0_buf_ == NULL); - // the following is a format limitation, no need for runtime check: - assert(part_size <= mem->part0_size_); - if (part_size == 0) { // can't have zero-size partition #0 - return VP8_STATUS_BITSTREAM_ERROR; - } - if (mem->mode_ == MEM_MODE_APPEND) { - // We copy and grab ownership of the partition #0 data. - uint8_t* const part0_buf = (uint8_t*)WebPSafeMalloc(1ULL, part_size); - if (part0_buf == NULL) { - return VP8_STATUS_OUT_OF_MEMORY; - } - memcpy(part0_buf, br->buf_, part_size); - mem->part0_buf_ = part0_buf; - VP8BitReaderSetBuffer(br, part0_buf, part_size); - } else { - // Else: just keep pointers to the partition #0's data in dec_->br_. - } - mem->start_ += part_size; - return VP8_STATUS_OK; -} - -static VP8StatusCode DecodePartition0(WebPIDecoder* const idec) { - VP8Decoder* const dec = (VP8Decoder*)idec->dec_; - VP8Io* const io = &idec->io_; - const WebPDecParams* const params = &idec->params_; - WebPDecBuffer* const output = params->output; - - // Wait till we have enough data for the whole partition #0 - if (MemDataSize(&idec->mem_) < idec->mem_.part0_size_) { - return VP8_STATUS_SUSPENDED; - } - - if (!VP8GetHeaders(dec, io)) { - const VP8StatusCode status = dec->status_; - if (status == VP8_STATUS_SUSPENDED || - status == VP8_STATUS_NOT_ENOUGH_DATA) { - // treating NOT_ENOUGH_DATA as SUSPENDED state - return VP8_STATUS_SUSPENDED; - } - return IDecError(idec, status); - } - - // Allocate/Verify output buffer now - dec->status_ = WebPAllocateDecBuffer(io->width, io->height, params->options, - output); - if (dec->status_ != VP8_STATUS_OK) { - return IDecError(idec, dec->status_); - } - // This change must be done before calling VP8InitFrame() - dec->mt_method_ = VP8GetThreadMethod(params->options, NULL, - io->width, io->height); - VP8InitDithering(params->options, dec); - - dec->status_ = CopyParts0Data(idec); - if (dec->status_ != VP8_STATUS_OK) { - return IDecError(idec, dec->status_); - } - - // Finish setting up the decoding parameters. Will call io->setup(). - if (VP8EnterCritical(dec, io) != VP8_STATUS_OK) { - return IDecError(idec, dec->status_); - } - - // Note: past this point, teardown() must always be called - // in case of error. - idec->state_ = STATE_VP8_DATA; - // Allocate memory and prepare everything. - if (!VP8InitFrame(dec, io)) { - return IDecError(idec, dec->status_); - } - return VP8_STATUS_OK; -} - -// Remaining partitions -static VP8StatusCode DecodeRemaining(WebPIDecoder* const idec) { - VP8Decoder* const dec = (VP8Decoder*)idec->dec_; - VP8Io* const io = &idec->io_; - - assert(dec->ready_); - for (; dec->mb_y_ < dec->mb_h_; ++dec->mb_y_) { - if (idec->last_mb_y_ != dec->mb_y_) { - if (!VP8ParseIntraModeRow(&dec->br_, dec)) { - // note: normally, error shouldn't occur since we already have the whole - // partition0 available here in DecodeRemaining(). Reaching EOF while - // reading intra modes really means a BITSTREAM_ERROR. - return IDecError(idec, VP8_STATUS_BITSTREAM_ERROR); - } - idec->last_mb_y_ = dec->mb_y_; - } - for (; dec->mb_x_ < dec->mb_w_; ++dec->mb_x_) { - VP8BitReader* const token_br = - &dec->parts_[dec->mb_y_ & dec->num_parts_minus_one_]; - MBContext context; - SaveContext(dec, token_br, &context); - if (!VP8DecodeMB(dec, token_br)) { - // We shouldn't fail when MAX_MB data was available - if (dec->num_parts_minus_one_ == 0 && - MemDataSize(&idec->mem_) > MAX_MB_SIZE) { - return IDecError(idec, VP8_STATUS_BITSTREAM_ERROR); - } - RestoreContext(&context, dec, token_br); - return VP8_STATUS_SUSPENDED; - } - // Release buffer only if there is only one partition - if (dec->num_parts_minus_one_ == 0) { - idec->mem_.start_ = token_br->buf_ - idec->mem_.buf_; - assert(idec->mem_.start_ <= idec->mem_.end_); - } - } - VP8InitScanline(dec); // Prepare for next scanline - - // Reconstruct, filter and emit the row. - if (!VP8ProcessRow(dec, io)) { - return IDecError(idec, VP8_STATUS_USER_ABORT); - } - } - // Synchronize the thread and check for errors. - if (!VP8ExitCritical(dec, io)) { - return IDecError(idec, VP8_STATUS_USER_ABORT); - } - dec->ready_ = 0; - return FinishDecoding(idec); -} - -static VP8StatusCode ErrorStatusLossless(WebPIDecoder* const idec, - VP8StatusCode status) { - if (status == VP8_STATUS_SUSPENDED || status == VP8_STATUS_NOT_ENOUGH_DATA) { - return VP8_STATUS_SUSPENDED; - } - return IDecError(idec, status); -} - -static VP8StatusCode DecodeVP8LHeader(WebPIDecoder* const idec) { - VP8Io* const io = &idec->io_; - VP8LDecoder* const dec = (VP8LDecoder*)idec->dec_; - const WebPDecParams* const params = &idec->params_; - WebPDecBuffer* const output = params->output; - size_t curr_size = MemDataSize(&idec->mem_); - assert(idec->is_lossless_); - - // Wait until there's enough data for decoding header. - if (curr_size < (idec->chunk_size_ >> 3)) { - dec->status_ = VP8_STATUS_SUSPENDED; - return ErrorStatusLossless(idec, dec->status_); - } - - if (!VP8LDecodeHeader(dec, io)) { - if (dec->status_ == VP8_STATUS_BITSTREAM_ERROR && - curr_size < idec->chunk_size_) { - dec->status_ = VP8_STATUS_SUSPENDED; - } - return ErrorStatusLossless(idec, dec->status_); - } - // Allocate/verify output buffer now. - dec->status_ = WebPAllocateDecBuffer(io->width, io->height, params->options, - output); - if (dec->status_ != VP8_STATUS_OK) { - return IDecError(idec, dec->status_); - } - - idec->state_ = STATE_VP8L_DATA; - return VP8_STATUS_OK; -} - -static VP8StatusCode DecodeVP8LData(WebPIDecoder* const idec) { - VP8LDecoder* const dec = (VP8LDecoder*)idec->dec_; - const size_t curr_size = MemDataSize(&idec->mem_); - assert(idec->is_lossless_); - - // Switch to incremental decoding if we don't have all the bytes available. - dec->incremental_ = (curr_size < idec->chunk_size_); - - if (!VP8LDecodeImage(dec)) { - return ErrorStatusLossless(idec, dec->status_); - } - assert(dec->status_ == VP8_STATUS_OK || dec->status_ == VP8_STATUS_SUSPENDED); - return (dec->status_ == VP8_STATUS_SUSPENDED) ? dec->status_ - : FinishDecoding(idec); -} - - // Main decoding loop -static VP8StatusCode IDecode(WebPIDecoder* idec) { - VP8StatusCode status = VP8_STATUS_SUSPENDED; - - if (idec->state_ == STATE_WEBP_HEADER) { - status = DecodeWebPHeaders(idec); - } else { - if (idec->dec_ == NULL) { - return VP8_STATUS_SUSPENDED; // can't continue if we have no decoder. - } - } - if (idec->state_ == STATE_VP8_HEADER) { - status = DecodeVP8FrameHeader(idec); - } - if (idec->state_ == STATE_VP8_PARTS0) { - status = DecodePartition0(idec); - } - if (idec->state_ == STATE_VP8_DATA) { - status = DecodeRemaining(idec); - } - if (idec->state_ == STATE_VP8L_HEADER) { - status = DecodeVP8LHeader(idec); - } - if (idec->state_ == STATE_VP8L_DATA) { - status = DecodeVP8LData(idec); - } - return status; -} - -//------------------------------------------------------------------------------ -// Internal constructor - -static WebPIDecoder* NewDecoder(WebPDecBuffer* const output_buffer, - const WebPBitstreamFeatures* const features) { - WebPIDecoder* idec = (WebPIDecoder*)WebPSafeCalloc(1ULL, sizeof(*idec)); - if (idec == NULL) { - return NULL; - } - - idec->state_ = STATE_WEBP_HEADER; - idec->chunk_size_ = 0; - - idec->last_mb_y_ = -1; - - InitMemBuffer(&idec->mem_); - WebPInitDecBuffer(&idec->output_); - VP8InitIo(&idec->io_); - - WebPResetDecParams(&idec->params_); - if (output_buffer == NULL || WebPAvoidSlowMemory(output_buffer, features)) { - idec->params_.output = &idec->output_; - idec->final_output_ = output_buffer; - if (output_buffer != NULL) { - idec->params_.output->colorspace = output_buffer->colorspace; - } - } else { - idec->params_.output = output_buffer; - idec->final_output_ = NULL; - } - WebPInitCustomIo(&idec->params_, &idec->io_); // Plug the I/O functions. - - return idec; -} - -//------------------------------------------------------------------------------ -// Public functions - -WebPIDecoder* WebPINewDecoder(WebPDecBuffer* output_buffer) { - return NewDecoder(output_buffer, NULL); -} - -WebPIDecoder* WebPIDecode(const uint8_t* data, size_t data_size, - WebPDecoderConfig* config) { - WebPIDecoder* idec; - WebPBitstreamFeatures tmp_features; - WebPBitstreamFeatures* const features = - (config == NULL) ? &tmp_features : &config->input; - memset(&tmp_features, 0, sizeof(tmp_features)); - - // Parse the bitstream's features, if requested: - if (data != NULL && data_size > 0) { - if (WebPGetFeatures(data, data_size, features) != VP8_STATUS_OK) { - return NULL; - } - } - - // Create an instance of the incremental decoder - idec = (config != NULL) ? NewDecoder(&config->output, features) - : NewDecoder(NULL, features); - if (idec == NULL) { - return NULL; - } - // Finish initialization - if (config != NULL) { - idec->params_.options = &config->options; - } - return idec; -} - -void WebPIDelete(WebPIDecoder* idec) { - if (idec == NULL) return; - if (idec->dec_ != NULL) { - if (!idec->is_lossless_) { - if (idec->state_ == STATE_VP8_DATA) { - // Synchronize the thread, clean-up and check for errors. - VP8ExitCritical((VP8Decoder*)idec->dec_, &idec->io_); - } - VP8Delete((VP8Decoder*)idec->dec_); - } else { - VP8LDelete((VP8LDecoder*)idec->dec_); - } - } - ClearMemBuffer(&idec->mem_); - WebPFreeDecBuffer(&idec->output_); - WebPSafeFree(idec); -} - -//------------------------------------------------------------------------------ -// Wrapper toward WebPINewDecoder - -WebPIDecoder* WebPINewRGB(WEBP_CSP_MODE mode, uint8_t* output_buffer, - size_t output_buffer_size, int output_stride) { - const int is_external_memory = (output_buffer != NULL) ? 1 : 0; - WebPIDecoder* idec; - - if (mode >= MODE_YUV) return NULL; - if (is_external_memory == 0) { // Overwrite parameters to sane values. - output_buffer_size = 0; - output_stride = 0; - } else { // A buffer was passed. Validate the other params. - if (output_stride == 0 || output_buffer_size == 0) { - return NULL; // invalid parameter. - } - } - idec = WebPINewDecoder(NULL); - if (idec == NULL) return NULL; - idec->output_.colorspace = mode; - idec->output_.is_external_memory = is_external_memory; - idec->output_.u.RGBA.rgba = output_buffer; - idec->output_.u.RGBA.stride = output_stride; - idec->output_.u.RGBA.size = output_buffer_size; - return idec; -} - -WebPIDecoder* WebPINewYUVA(uint8_t* luma, size_t luma_size, int luma_stride, - uint8_t* u, size_t u_size, int u_stride, - uint8_t* v, size_t v_size, int v_stride, - uint8_t* a, size_t a_size, int a_stride) { - const int is_external_memory = (luma != NULL) ? 1 : 0; - WebPIDecoder* idec; - WEBP_CSP_MODE colorspace; - - if (is_external_memory == 0) { // Overwrite parameters to sane values. - luma_size = u_size = v_size = a_size = 0; - luma_stride = u_stride = v_stride = a_stride = 0; - u = v = a = NULL; - colorspace = MODE_YUVA; - } else { // A luma buffer was passed. Validate the other parameters. - if (u == NULL || v == NULL) return NULL; - if (luma_size == 0 || u_size == 0 || v_size == 0) return NULL; - if (luma_stride == 0 || u_stride == 0 || v_stride == 0) return NULL; - if (a != NULL) { - if (a_size == 0 || a_stride == 0) return NULL; - } - colorspace = (a == NULL) ? MODE_YUV : MODE_YUVA; - } - - idec = WebPINewDecoder(NULL); - if (idec == NULL) return NULL; - - idec->output_.colorspace = colorspace; - idec->output_.is_external_memory = is_external_memory; - idec->output_.u.YUVA.y = luma; - idec->output_.u.YUVA.y_stride = luma_stride; - idec->output_.u.YUVA.y_size = luma_size; - idec->output_.u.YUVA.u = u; - idec->output_.u.YUVA.u_stride = u_stride; - idec->output_.u.YUVA.u_size = u_size; - idec->output_.u.YUVA.v = v; - idec->output_.u.YUVA.v_stride = v_stride; - idec->output_.u.YUVA.v_size = v_size; - idec->output_.u.YUVA.a = a; - idec->output_.u.YUVA.a_stride = a_stride; - idec->output_.u.YUVA.a_size = a_size; - return idec; -} - -WebPIDecoder* WebPINewYUV(uint8_t* luma, size_t luma_size, int luma_stride, - uint8_t* u, size_t u_size, int u_stride, - uint8_t* v, size_t v_size, int v_stride) { - return WebPINewYUVA(luma, luma_size, luma_stride, - u, u_size, u_stride, - v, v_size, v_stride, - NULL, 0, 0); -} - -//------------------------------------------------------------------------------ - -static VP8StatusCode IDecCheckStatus(const WebPIDecoder* const idec) { - assert(idec); - if (idec->state_ == STATE_ERROR) { - return VP8_STATUS_BITSTREAM_ERROR; - } - if (idec->state_ == STATE_DONE) { - return VP8_STATUS_OK; - } - return VP8_STATUS_SUSPENDED; -} - -VP8StatusCode WebPIAppend(WebPIDecoder* idec, - const uint8_t* data, size_t data_size) { - VP8StatusCode status; - if (idec == NULL || data == NULL) { - return VP8_STATUS_INVALID_PARAM; - } - status = IDecCheckStatus(idec); - if (status != VP8_STATUS_SUSPENDED) { - return status; - } - // Check mixed calls between RemapMemBuffer and AppendToMemBuffer. - if (!CheckMemBufferMode(&idec->mem_, MEM_MODE_APPEND)) { - return VP8_STATUS_INVALID_PARAM; - } - // Append data to memory buffer - if (!AppendToMemBuffer(idec, data, data_size)) { - return VP8_STATUS_OUT_OF_MEMORY; - } - return IDecode(idec); -} - -VP8StatusCode WebPIUpdate(WebPIDecoder* idec, - const uint8_t* data, size_t data_size) { - VP8StatusCode status; - if (idec == NULL || data == NULL) { - return VP8_STATUS_INVALID_PARAM; - } - status = IDecCheckStatus(idec); - if (status != VP8_STATUS_SUSPENDED) { - return status; - } - // Check mixed calls between RemapMemBuffer and AppendToMemBuffer. - if (!CheckMemBufferMode(&idec->mem_, MEM_MODE_MAP)) { - return VP8_STATUS_INVALID_PARAM; - } - // Make the memory buffer point to the new buffer - if (!RemapMemBuffer(idec, data, data_size)) { - return VP8_STATUS_INVALID_PARAM; - } - return IDecode(idec); -} - -//------------------------------------------------------------------------------ - -static const WebPDecBuffer* GetOutputBuffer(const WebPIDecoder* const idec) { - if (idec == NULL || idec->dec_ == NULL) { - return NULL; - } - if (idec->state_ <= STATE_VP8_PARTS0) { - return NULL; - } - if (idec->final_output_ != NULL) { - return NULL; // not yet slow-copied - } - return idec->params_.output; -} - -const WebPDecBuffer* WebPIDecodedArea(const WebPIDecoder* idec, - int* left, int* top, - int* width, int* height) { - const WebPDecBuffer* const src = GetOutputBuffer(idec); - if (left != NULL) *left = 0; - if (top != NULL) *top = 0; - if (src != NULL) { - if (width != NULL) *width = src->width; - if (height != NULL) *height = idec->params_.last_y; - } else { - if (width != NULL) *width = 0; - if (height != NULL) *height = 0; - } - return src; -} - -uint8_t* WebPIDecGetRGB(const WebPIDecoder* idec, int* last_y, - int* width, int* height, int* stride) { - const WebPDecBuffer* const src = GetOutputBuffer(idec); - if (src == NULL) return NULL; - if (src->colorspace >= MODE_YUV) { - return NULL; - } - - if (last_y != NULL) *last_y = idec->params_.last_y; - if (width != NULL) *width = src->width; - if (height != NULL) *height = src->height; - if (stride != NULL) *stride = src->u.RGBA.stride; - - return src->u.RGBA.rgba; -} - -uint8_t* WebPIDecGetYUVA(const WebPIDecoder* idec, int* last_y, - uint8_t** u, uint8_t** v, uint8_t** a, - int* width, int* height, - int* stride, int* uv_stride, int* a_stride) { - const WebPDecBuffer* const src = GetOutputBuffer(idec); - if (src == NULL) return NULL; - if (src->colorspace < MODE_YUV) { - return NULL; - } - - if (last_y != NULL) *last_y = idec->params_.last_y; - if (u != NULL) *u = src->u.YUVA.u; - if (v != NULL) *v = src->u.YUVA.v; - if (a != NULL) *a = src->u.YUVA.a; - if (width != NULL) *width = src->width; - if (height != NULL) *height = src->height; - if (stride != NULL) *stride = src->u.YUVA.y_stride; - if (uv_stride != NULL) *uv_stride = src->u.YUVA.u_stride; - if (a_stride != NULL) *a_stride = src->u.YUVA.a_stride; - - return src->u.YUVA.y; -} - -int WebPISetIOHooks(WebPIDecoder* const idec, - VP8IoPutHook put, - VP8IoSetupHook setup, - VP8IoTeardownHook teardown, - void* user_data) { - if (idec == NULL || idec->state_ > STATE_WEBP_HEADER) { - return 0; - } - - idec->io_.put = put; - idec->io_.setup = setup; - idec->io_.teardown = teardown; - idec->io_.opaque = user_data; - - return 1; -} diff --git a/drivers/webp/dec/io.c b/drivers/webp/dec/io.c deleted file mode 100644 index 8d5c43f325..0000000000 --- a/drivers/webp/dec/io.c +++ /dev/null @@ -1,624 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// functions for sample output. -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> -#include <stdlib.h> -#include "../dec/vp8i.h" -#include "./webpi.h" -#include "../dsp/dsp.h" -#include "../dsp/yuv.h" -#include "../utils/utils.h" - -//------------------------------------------------------------------------------ -// Main YUV<->RGB conversion functions - -static int EmitYUV(const VP8Io* const io, WebPDecParams* const p) { - WebPDecBuffer* output = p->output; - const WebPYUVABuffer* const buf = &output->u.YUVA; - uint8_t* const y_dst = buf->y + io->mb_y * buf->y_stride; - uint8_t* const u_dst = buf->u + (io->mb_y >> 1) * buf->u_stride; - uint8_t* const v_dst = buf->v + (io->mb_y >> 1) * buf->v_stride; - const int mb_w = io->mb_w; - const int mb_h = io->mb_h; - const int uv_w = (mb_w + 1) / 2; - const int uv_h = (mb_h + 1) / 2; - int j; - for (j = 0; j < mb_h; ++j) { - memcpy(y_dst + j * buf->y_stride, io->y + j * io->y_stride, mb_w); - } - for (j = 0; j < uv_h; ++j) { - memcpy(u_dst + j * buf->u_stride, io->u + j * io->uv_stride, uv_w); - memcpy(v_dst + j * buf->v_stride, io->v + j * io->uv_stride, uv_w); - } - return io->mb_h; -} - -// Point-sampling U/V sampler. -static int EmitSampledRGB(const VP8Io* const io, WebPDecParams* const p) { - WebPDecBuffer* const output = p->output; - WebPRGBABuffer* const buf = &output->u.RGBA; - uint8_t* const dst = buf->rgba + io->mb_y * buf->stride; - WebPSamplerProcessPlane(io->y, io->y_stride, - io->u, io->v, io->uv_stride, - dst, buf->stride, io->mb_w, io->mb_h, - WebPSamplers[output->colorspace]); - return io->mb_h; -} - -//------------------------------------------------------------------------------ -// Fancy upsampling - -#ifdef FANCY_UPSAMPLING -static int EmitFancyRGB(const VP8Io* const io, WebPDecParams* const p) { - int num_lines_out = io->mb_h; // a priori guess - const WebPRGBABuffer* const buf = &p->output->u.RGBA; - uint8_t* dst = buf->rgba + io->mb_y * buf->stride; - WebPUpsampleLinePairFunc upsample = WebPUpsamplers[p->output->colorspace]; - const uint8_t* cur_y = io->y; - const uint8_t* cur_u = io->u; - const uint8_t* cur_v = io->v; - const uint8_t* top_u = p->tmp_u; - const uint8_t* top_v = p->tmp_v; - int y = io->mb_y; - const int y_end = io->mb_y + io->mb_h; - const int mb_w = io->mb_w; - const int uv_w = (mb_w + 1) / 2; - - if (y == 0) { - // First line is special cased. We mirror the u/v samples at boundary. - upsample(cur_y, NULL, cur_u, cur_v, cur_u, cur_v, dst, NULL, mb_w); - } else { - // We can finish the left-over line from previous call. - upsample(p->tmp_y, cur_y, top_u, top_v, cur_u, cur_v, - dst - buf->stride, dst, mb_w); - ++num_lines_out; - } - // Loop over each output pairs of row. - for (; y + 2 < y_end; y += 2) { - top_u = cur_u; - top_v = cur_v; - cur_u += io->uv_stride; - cur_v += io->uv_stride; - dst += 2 * buf->stride; - cur_y += 2 * io->y_stride; - upsample(cur_y - io->y_stride, cur_y, - top_u, top_v, cur_u, cur_v, - dst - buf->stride, dst, mb_w); - } - // move to last row - cur_y += io->y_stride; - if (io->crop_top + y_end < io->crop_bottom) { - // Save the unfinished samples for next call (as we're not done yet). - memcpy(p->tmp_y, cur_y, mb_w * sizeof(*p->tmp_y)); - memcpy(p->tmp_u, cur_u, uv_w * sizeof(*p->tmp_u)); - memcpy(p->tmp_v, cur_v, uv_w * sizeof(*p->tmp_v)); - // The fancy upsampler leaves a row unfinished behind - // (except for the very last row) - num_lines_out--; - } else { - // Process the very last row of even-sized picture - if (!(y_end & 1)) { - upsample(cur_y, NULL, cur_u, cur_v, cur_u, cur_v, - dst + buf->stride, NULL, mb_w); - } - } - return num_lines_out; -} - -#endif /* FANCY_UPSAMPLING */ - -//------------------------------------------------------------------------------ - -static void FillAlphaPlane(uint8_t* dst, int w, int h, int stride) { - int j; - for (j = 0; j < h; ++j) { - memset(dst, 0xff, w * sizeof(*dst)); - dst += stride; - } -} - -static int EmitAlphaYUV(const VP8Io* const io, WebPDecParams* const p, - int expected_num_lines_out) { - const uint8_t* alpha = io->a; - const WebPYUVABuffer* const buf = &p->output->u.YUVA; - const int mb_w = io->mb_w; - const int mb_h = io->mb_h; - uint8_t* dst = buf->a + io->mb_y * buf->a_stride; - int j; - (void)expected_num_lines_out; - assert(expected_num_lines_out == mb_h); - if (alpha != NULL) { - for (j = 0; j < mb_h; ++j) { - memcpy(dst, alpha, mb_w * sizeof(*dst)); - alpha += io->width; - dst += buf->a_stride; - } - } else if (buf->a != NULL) { - // the user requested alpha, but there is none, set it to opaque. - FillAlphaPlane(dst, mb_w, mb_h, buf->a_stride); - } - return 0; -} - -static int GetAlphaSourceRow(const VP8Io* const io, - const uint8_t** alpha, int* const num_rows) { - int start_y = io->mb_y; - *num_rows = io->mb_h; - - // Compensate for the 1-line delay of the fancy upscaler. - // This is similar to EmitFancyRGB(). - if (io->fancy_upsampling) { - if (start_y == 0) { - // We don't process the last row yet. It'll be done during the next call. - --*num_rows; - } else { - --start_y; - // Fortunately, *alpha data is persistent, so we can go back - // one row and finish alpha blending, now that the fancy upscaler - // completed the YUV->RGB interpolation. - *alpha -= io->width; - } - if (io->crop_top + io->mb_y + io->mb_h == io->crop_bottom) { - // If it's the very last call, we process all the remaining rows! - *num_rows = io->crop_bottom - io->crop_top - start_y; - } - } - return start_y; -} - -static int EmitAlphaRGB(const VP8Io* const io, WebPDecParams* const p, - int expected_num_lines_out) { - const uint8_t* alpha = io->a; - if (alpha != NULL) { - const int mb_w = io->mb_w; - const WEBP_CSP_MODE colorspace = p->output->colorspace; - const int alpha_first = - (colorspace == MODE_ARGB || colorspace == MODE_Argb); - const WebPRGBABuffer* const buf = &p->output->u.RGBA; - int num_rows; - const int start_y = GetAlphaSourceRow(io, &alpha, &num_rows); - uint8_t* const base_rgba = buf->rgba + start_y * buf->stride; - uint8_t* const dst = base_rgba + (alpha_first ? 0 : 3); - const int has_alpha = WebPDispatchAlpha(alpha, io->width, mb_w, - num_rows, dst, buf->stride); - (void)expected_num_lines_out; - assert(expected_num_lines_out == num_rows); - // has_alpha is true if there's non-trivial alpha to premultiply with. - if (has_alpha && WebPIsPremultipliedMode(colorspace)) { - WebPApplyAlphaMultiply(base_rgba, alpha_first, - mb_w, num_rows, buf->stride); - } - } - return 0; -} - -static int EmitAlphaRGBA4444(const VP8Io* const io, WebPDecParams* const p, - int expected_num_lines_out) { - const uint8_t* alpha = io->a; - if (alpha != NULL) { - const int mb_w = io->mb_w; - const WEBP_CSP_MODE colorspace = p->output->colorspace; - const WebPRGBABuffer* const buf = &p->output->u.RGBA; - int num_rows; - const int start_y = GetAlphaSourceRow(io, &alpha, &num_rows); - uint8_t* const base_rgba = buf->rgba + start_y * buf->stride; -#ifdef WEBP_SWAP_16BIT_CSP - uint8_t* alpha_dst = base_rgba; -#else - uint8_t* alpha_dst = base_rgba + 1; -#endif - uint32_t alpha_mask = 0x0f; - int i, j; - for (j = 0; j < num_rows; ++j) { - for (i = 0; i < mb_w; ++i) { - // Fill in the alpha value (converted to 4 bits). - const uint32_t alpha_value = alpha[i] >> 4; - alpha_dst[2 * i] = (alpha_dst[2 * i] & 0xf0) | alpha_value; - alpha_mask &= alpha_value; - } - alpha += io->width; - alpha_dst += buf->stride; - } - (void)expected_num_lines_out; - assert(expected_num_lines_out == num_rows); - if (alpha_mask != 0x0f && WebPIsPremultipliedMode(colorspace)) { - WebPApplyAlphaMultiply4444(base_rgba, mb_w, num_rows, buf->stride); - } - } - return 0; -} - -//------------------------------------------------------------------------------ -// YUV rescaling (no final RGB conversion needed) - -static int Rescale(const uint8_t* src, int src_stride, - int new_lines, WebPRescaler* const wrk) { - int num_lines_out = 0; - while (new_lines > 0) { // import new contributions of source rows. - const int lines_in = WebPRescalerImport(wrk, new_lines, src, src_stride); - src += lines_in * src_stride; - new_lines -= lines_in; - num_lines_out += WebPRescalerExport(wrk); // emit output row(s) - } - return num_lines_out; -} - -static int EmitRescaledYUV(const VP8Io* const io, WebPDecParams* const p) { - const int mb_h = io->mb_h; - const int uv_mb_h = (mb_h + 1) >> 1; - WebPRescaler* const scaler = &p->scaler_y; - int num_lines_out = 0; - if (WebPIsAlphaMode(p->output->colorspace) && io->a != NULL) { - // Before rescaling, we premultiply the luma directly into the io->y - // internal buffer. This is OK since these samples are not used for - // intra-prediction (the top samples are saved in cache_y_/u_/v_). - // But we need to cast the const away, though. - WebPMultRows((uint8_t*)io->y, io->y_stride, - io->a, io->width, io->mb_w, mb_h, 0); - } - num_lines_out = Rescale(io->y, io->y_stride, mb_h, scaler); - Rescale(io->u, io->uv_stride, uv_mb_h, &p->scaler_u); - Rescale(io->v, io->uv_stride, uv_mb_h, &p->scaler_v); - return num_lines_out; -} - -static int EmitRescaledAlphaYUV(const VP8Io* const io, WebPDecParams* const p, - int expected_num_lines_out) { - const WebPYUVABuffer* const buf = &p->output->u.YUVA; - if (io->a != NULL) { - uint8_t* dst_y = buf->y + p->last_y * buf->y_stride; - const uint8_t* src_a = buf->a + p->last_y * buf->a_stride; - const int num_lines_out = Rescale(io->a, io->width, io->mb_h, &p->scaler_a); - (void)expected_num_lines_out; - assert(expected_num_lines_out == num_lines_out); - if (num_lines_out > 0) { // unmultiply the Y - WebPMultRows(dst_y, buf->y_stride, src_a, buf->a_stride, - p->scaler_a.dst_width, num_lines_out, 1); - } - } else if (buf->a != NULL) { - // the user requested alpha, but there is none, set it to opaque. - assert(p->last_y + expected_num_lines_out <= io->scaled_height); - FillAlphaPlane(buf->a + p->last_y * buf->a_stride, - io->scaled_width, expected_num_lines_out, buf->a_stride); - } - return 0; -} - -static int InitYUVRescaler(const VP8Io* const io, WebPDecParams* const p) { - const int has_alpha = WebPIsAlphaMode(p->output->colorspace); - const WebPYUVABuffer* const buf = &p->output->u.YUVA; - const int out_width = io->scaled_width; - const int out_height = io->scaled_height; - const int uv_out_width = (out_width + 1) >> 1; - const int uv_out_height = (out_height + 1) >> 1; - const int uv_in_width = (io->mb_w + 1) >> 1; - const int uv_in_height = (io->mb_h + 1) >> 1; - const size_t work_size = 2 * out_width; // scratch memory for luma rescaler - const size_t uv_work_size = 2 * uv_out_width; // and for each u/v ones - size_t tmp_size; - rescaler_t* work; - - tmp_size = (work_size + 2 * uv_work_size) * sizeof(*work); - if (has_alpha) { - tmp_size += work_size * sizeof(*work); - } - p->memory = WebPSafeMalloc(1ULL, tmp_size); - if (p->memory == NULL) { - return 0; // memory error - } - work = (rescaler_t*)p->memory; - WebPRescalerInit(&p->scaler_y, io->mb_w, io->mb_h, - buf->y, out_width, out_height, buf->y_stride, 1, - work); - WebPRescalerInit(&p->scaler_u, uv_in_width, uv_in_height, - buf->u, uv_out_width, uv_out_height, buf->u_stride, 1, - work + work_size); - WebPRescalerInit(&p->scaler_v, uv_in_width, uv_in_height, - buf->v, uv_out_width, uv_out_height, buf->v_stride, 1, - work + work_size + uv_work_size); - p->emit = EmitRescaledYUV; - - if (has_alpha) { - WebPRescalerInit(&p->scaler_a, io->mb_w, io->mb_h, - buf->a, out_width, out_height, buf->a_stride, 1, - work + work_size + 2 * uv_work_size); - p->emit_alpha = EmitRescaledAlphaYUV; - WebPInitAlphaProcessing(); - } - return 1; -} - -//------------------------------------------------------------------------------ -// RGBA rescaling - -static int ExportRGB(WebPDecParams* const p, int y_pos) { - const WebPYUV444Converter convert = - WebPYUV444Converters[p->output->colorspace]; - const WebPRGBABuffer* const buf = &p->output->u.RGBA; - uint8_t* dst = buf->rgba + y_pos * buf->stride; - int num_lines_out = 0; - // For RGB rescaling, because of the YUV420, current scan position - // U/V can be +1/-1 line from the Y one. Hence the double test. - while (WebPRescalerHasPendingOutput(&p->scaler_y) && - WebPRescalerHasPendingOutput(&p->scaler_u)) { - assert(y_pos + num_lines_out < p->output->height); - assert(p->scaler_u.y_accum == p->scaler_v.y_accum); - WebPRescalerExportRow(&p->scaler_y); - WebPRescalerExportRow(&p->scaler_u); - WebPRescalerExportRow(&p->scaler_v); - convert(p->scaler_y.dst, p->scaler_u.dst, p->scaler_v.dst, - dst, p->scaler_y.dst_width); - dst += buf->stride; - ++num_lines_out; - } - return num_lines_out; -} - -static int EmitRescaledRGB(const VP8Io* const io, WebPDecParams* const p) { - const int mb_h = io->mb_h; - const int uv_mb_h = (mb_h + 1) >> 1; - int j = 0, uv_j = 0; - int num_lines_out = 0; - while (j < mb_h) { - const int y_lines_in = - WebPRescalerImport(&p->scaler_y, mb_h - j, - io->y + j * io->y_stride, io->y_stride); - j += y_lines_in; - if (WebPRescaleNeededLines(&p->scaler_u, uv_mb_h - uv_j)) { - const int u_lines_in = - WebPRescalerImport(&p->scaler_u, uv_mb_h - uv_j, - io->u + uv_j * io->uv_stride, io->uv_stride); - const int v_lines_in = - WebPRescalerImport(&p->scaler_v, uv_mb_h - uv_j, - io->v + uv_j * io->uv_stride, io->uv_stride); - (void)v_lines_in; // remove a gcc warning - assert(u_lines_in == v_lines_in); - uv_j += u_lines_in; - } - num_lines_out += ExportRGB(p, p->last_y + num_lines_out); - } - return num_lines_out; -} - -static int ExportAlpha(WebPDecParams* const p, int y_pos, int max_lines_out) { - const WebPRGBABuffer* const buf = &p->output->u.RGBA; - uint8_t* const base_rgba = buf->rgba + y_pos * buf->stride; - const WEBP_CSP_MODE colorspace = p->output->colorspace; - const int alpha_first = - (colorspace == MODE_ARGB || colorspace == MODE_Argb); - uint8_t* dst = base_rgba + (alpha_first ? 0 : 3); - int num_lines_out = 0; - const int is_premult_alpha = WebPIsPremultipliedMode(colorspace); - uint32_t non_opaque = 0; - const int width = p->scaler_a.dst_width; - - while (WebPRescalerHasPendingOutput(&p->scaler_a) && - num_lines_out < max_lines_out) { - assert(y_pos + num_lines_out < p->output->height); - WebPRescalerExportRow(&p->scaler_a); - non_opaque |= WebPDispatchAlpha(p->scaler_a.dst, 0, width, 1, dst, 0); - dst += buf->stride; - ++num_lines_out; - } - if (is_premult_alpha && non_opaque) { - WebPApplyAlphaMultiply(base_rgba, alpha_first, - width, num_lines_out, buf->stride); - } - return num_lines_out; -} - -static int ExportAlphaRGBA4444(WebPDecParams* const p, int y_pos, - int max_lines_out) { - const WebPRGBABuffer* const buf = &p->output->u.RGBA; - uint8_t* const base_rgba = buf->rgba + y_pos * buf->stride; -#ifdef WEBP_SWAP_16BIT_CSP - uint8_t* alpha_dst = base_rgba; -#else - uint8_t* alpha_dst = base_rgba + 1; -#endif - int num_lines_out = 0; - const WEBP_CSP_MODE colorspace = p->output->colorspace; - const int width = p->scaler_a.dst_width; - const int is_premult_alpha = WebPIsPremultipliedMode(colorspace); - uint32_t alpha_mask = 0x0f; - - while (WebPRescalerHasPendingOutput(&p->scaler_a) && - num_lines_out < max_lines_out) { - int i; - assert(y_pos + num_lines_out < p->output->height); - WebPRescalerExportRow(&p->scaler_a); - for (i = 0; i < width; ++i) { - // Fill in the alpha value (converted to 4 bits). - const uint32_t alpha_value = p->scaler_a.dst[i] >> 4; - alpha_dst[2 * i] = (alpha_dst[2 * i] & 0xf0) | alpha_value; - alpha_mask &= alpha_value; - } - alpha_dst += buf->stride; - ++num_lines_out; - } - if (is_premult_alpha && alpha_mask != 0x0f) { - WebPApplyAlphaMultiply4444(base_rgba, width, num_lines_out, buf->stride); - } - return num_lines_out; -} - -static int EmitRescaledAlphaRGB(const VP8Io* const io, WebPDecParams* const p, - int expected_num_out_lines) { - if (io->a != NULL) { - WebPRescaler* const scaler = &p->scaler_a; - int lines_left = expected_num_out_lines; - const int y_end = p->last_y + lines_left; - while (lines_left > 0) { - const int row_offset = scaler->src_y - io->mb_y; - WebPRescalerImport(scaler, io->mb_h + io->mb_y - scaler->src_y, - io->a + row_offset * io->width, io->width); - lines_left -= p->emit_alpha_row(p, y_end - lines_left, lines_left); - } - } - return 0; -} - -static int InitRGBRescaler(const VP8Io* const io, WebPDecParams* const p) { - const int has_alpha = WebPIsAlphaMode(p->output->colorspace); - const int out_width = io->scaled_width; - const int out_height = io->scaled_height; - const int uv_in_width = (io->mb_w + 1) >> 1; - const int uv_in_height = (io->mb_h + 1) >> 1; - const size_t work_size = 2 * out_width; // scratch memory for one rescaler - rescaler_t* work; // rescalers work area - uint8_t* tmp; // tmp storage for scaled YUV444 samples before RGB conversion - size_t tmp_size1, tmp_size2, total_size; - - tmp_size1 = 3 * work_size; - tmp_size2 = 3 * out_width; - if (has_alpha) { - tmp_size1 += work_size; - tmp_size2 += out_width; - } - total_size = tmp_size1 * sizeof(*work) + tmp_size2 * sizeof(*tmp); - p->memory = WebPSafeMalloc(1ULL, total_size); - if (p->memory == NULL) { - return 0; // memory error - } - work = (rescaler_t*)p->memory; - tmp = (uint8_t*)(work + tmp_size1); - WebPRescalerInit(&p->scaler_y, io->mb_w, io->mb_h, - tmp + 0 * out_width, out_width, out_height, 0, 1, - work + 0 * work_size); - WebPRescalerInit(&p->scaler_u, uv_in_width, uv_in_height, - tmp + 1 * out_width, out_width, out_height, 0, 1, - work + 1 * work_size); - WebPRescalerInit(&p->scaler_v, uv_in_width, uv_in_height, - tmp + 2 * out_width, out_width, out_height, 0, 1, - work + 2 * work_size); - p->emit = EmitRescaledRGB; - WebPInitYUV444Converters(); - - if (has_alpha) { - WebPRescalerInit(&p->scaler_a, io->mb_w, io->mb_h, - tmp + 3 * out_width, out_width, out_height, 0, 1, - work + 3 * work_size); - p->emit_alpha = EmitRescaledAlphaRGB; - if (p->output->colorspace == MODE_RGBA_4444 || - p->output->colorspace == MODE_rgbA_4444) { - p->emit_alpha_row = ExportAlphaRGBA4444; - } else { - p->emit_alpha_row = ExportAlpha; - } - WebPInitAlphaProcessing(); - } - return 1; -} - -//------------------------------------------------------------------------------ -// Default custom functions - -static int CustomSetup(VP8Io* io) { - WebPDecParams* const p = (WebPDecParams*)io->opaque; - const WEBP_CSP_MODE colorspace = p->output->colorspace; - const int is_rgb = WebPIsRGBMode(colorspace); - const int is_alpha = WebPIsAlphaMode(colorspace); - - p->memory = NULL; - p->emit = NULL; - p->emit_alpha = NULL; - p->emit_alpha_row = NULL; - if (!WebPIoInitFromOptions(p->options, io, is_alpha ? MODE_YUV : MODE_YUVA)) { - return 0; - } - if (is_alpha && WebPIsPremultipliedMode(colorspace)) { - WebPInitUpsamplers(); - } - if (io->use_scaling) { - const int ok = is_rgb ? InitRGBRescaler(io, p) : InitYUVRescaler(io, p); - if (!ok) { - return 0; // memory error - } - } else { - if (is_rgb) { - WebPInitSamplers(); - p->emit = EmitSampledRGB; // default - if (io->fancy_upsampling) { -#ifdef FANCY_UPSAMPLING - const int uv_width = (io->mb_w + 1) >> 1; - p->memory = WebPSafeMalloc(1ULL, (size_t)(io->mb_w + 2 * uv_width)); - if (p->memory == NULL) { - return 0; // memory error. - } - p->tmp_y = (uint8_t*)p->memory; - p->tmp_u = p->tmp_y + io->mb_w; - p->tmp_v = p->tmp_u + uv_width; - p->emit = EmitFancyRGB; - WebPInitUpsamplers(); -#endif - } - } else { - p->emit = EmitYUV; - } - if (is_alpha) { // need transparency output - p->emit_alpha = - (colorspace == MODE_RGBA_4444 || colorspace == MODE_rgbA_4444) ? - EmitAlphaRGBA4444 - : is_rgb ? EmitAlphaRGB - : EmitAlphaYUV; - if (is_rgb) { - WebPInitAlphaProcessing(); - } - } - } - - if (is_rgb) { - VP8YUVInit(); - } - return 1; -} - -//------------------------------------------------------------------------------ - -static int CustomPut(const VP8Io* io) { - WebPDecParams* const p = (WebPDecParams*)io->opaque; - const int mb_w = io->mb_w; - const int mb_h = io->mb_h; - int num_lines_out; - assert(!(io->mb_y & 1)); - - if (mb_w <= 0 || mb_h <= 0) { - return 0; - } - num_lines_out = p->emit(io, p); - if (p->emit_alpha != NULL) { - p->emit_alpha(io, p, num_lines_out); - } - p->last_y += num_lines_out; - return 1; -} - -//------------------------------------------------------------------------------ - -static void CustomTeardown(const VP8Io* io) { - WebPDecParams* const p = (WebPDecParams*)io->opaque; - WebPSafeFree(p->memory); - p->memory = NULL; -} - -//------------------------------------------------------------------------------ -// Main entry point - -void WebPInitCustomIo(WebPDecParams* const params, VP8Io* const io) { - io->put = CustomPut; - io->setup = CustomSetup; - io->teardown = CustomTeardown; - io->opaque = params; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/dec/quant.c b/drivers/webp/dec/quant.c deleted file mode 100644 index 5b648f942c..0000000000 --- a/drivers/webp/dec/quant.c +++ /dev/null @@ -1,110 +0,0 @@ -// Copyright 2010 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Quantizer initialization -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./vp8i.h" - -static WEBP_INLINE int clip(int v, int M) { - return v < 0 ? 0 : v > M ? M : v; -} - -// Paragraph 14.1 -static const uint8_t kDcTable[128] = { - 4, 5, 6, 7, 8, 9, 10, 10, - 11, 12, 13, 14, 15, 16, 17, 17, - 18, 19, 20, 20, 21, 21, 22, 22, - 23, 23, 24, 25, 25, 26, 27, 28, - 29, 30, 31, 32, 33, 34, 35, 36, - 37, 37, 38, 39, 40, 41, 42, 43, - 44, 45, 46, 46, 47, 48, 49, 50, - 51, 52, 53, 54, 55, 56, 57, 58, - 59, 60, 61, 62, 63, 64, 65, 66, - 67, 68, 69, 70, 71, 72, 73, 74, - 75, 76, 76, 77, 78, 79, 80, 81, - 82, 83, 84, 85, 86, 87, 88, 89, - 91, 93, 95, 96, 98, 100, 101, 102, - 104, 106, 108, 110, 112, 114, 116, 118, - 122, 124, 126, 128, 130, 132, 134, 136, - 138, 140, 143, 145, 148, 151, 154, 157 -}; - -static const uint16_t kAcTable[128] = { - 4, 5, 6, 7, 8, 9, 10, 11, - 12, 13, 14, 15, 16, 17, 18, 19, - 20, 21, 22, 23, 24, 25, 26, 27, - 28, 29, 30, 31, 32, 33, 34, 35, - 36, 37, 38, 39, 40, 41, 42, 43, - 44, 45, 46, 47, 48, 49, 50, 51, - 52, 53, 54, 55, 56, 57, 58, 60, - 62, 64, 66, 68, 70, 72, 74, 76, - 78, 80, 82, 84, 86, 88, 90, 92, - 94, 96, 98, 100, 102, 104, 106, 108, - 110, 112, 114, 116, 119, 122, 125, 128, - 131, 134, 137, 140, 143, 146, 149, 152, - 155, 158, 161, 164, 167, 170, 173, 177, - 181, 185, 189, 193, 197, 201, 205, 209, - 213, 217, 221, 225, 229, 234, 239, 245, - 249, 254, 259, 264, 269, 274, 279, 284 -}; - -//------------------------------------------------------------------------------ -// Paragraph 9.6 - -void VP8ParseQuant(VP8Decoder* const dec) { - VP8BitReader* const br = &dec->br_; - const int base_q0 = VP8GetValue(br, 7); - const int dqy1_dc = VP8Get(br) ? VP8GetSignedValue(br, 4) : 0; - const int dqy2_dc = VP8Get(br) ? VP8GetSignedValue(br, 4) : 0; - const int dqy2_ac = VP8Get(br) ? VP8GetSignedValue(br, 4) : 0; - const int dquv_dc = VP8Get(br) ? VP8GetSignedValue(br, 4) : 0; - const int dquv_ac = VP8Get(br) ? VP8GetSignedValue(br, 4) : 0; - - const VP8SegmentHeader* const hdr = &dec->segment_hdr_; - int i; - - for (i = 0; i < NUM_MB_SEGMENTS; ++i) { - int q; - if (hdr->use_segment_) { - q = hdr->quantizer_[i]; - if (!hdr->absolute_delta_) { - q += base_q0; - } - } else { - if (i > 0) { - dec->dqm_[i] = dec->dqm_[0]; - continue; - } else { - q = base_q0; - } - } - { - VP8QuantMatrix* const m = &dec->dqm_[i]; - m->y1_mat_[0] = kDcTable[clip(q + dqy1_dc, 127)]; - m->y1_mat_[1] = kAcTable[clip(q + 0, 127)]; - - m->y2_mat_[0] = kDcTable[clip(q + dqy2_dc, 127)] * 2; - // For all x in [0..284], x*155/100 is bitwise equal to (x*101581) >> 16. - // The smallest precision for that is '(x*6349) >> 12' but 16 is a good - // word size. - m->y2_mat_[1] = (kAcTable[clip(q + dqy2_ac, 127)] * 101581) >> 16; - if (m->y2_mat_[1] < 8) m->y2_mat_[1] = 8; - - m->uv_mat_[0] = kDcTable[clip(q + dquv_dc, 117)]; - m->uv_mat_[1] = kAcTable[clip(q + dquv_ac, 127)]; - - m->uv_quant_ = q + dquv_ac; // for dithering strength evaluation - } - } -} - -//------------------------------------------------------------------------------ - diff --git a/drivers/webp/dec/tree.c b/drivers/webp/dec/tree.c deleted file mode 100644 index c2007ea733..0000000000 --- a/drivers/webp/dec/tree.c +++ /dev/null @@ -1,525 +0,0 @@ -// Copyright 2010 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Coding trees and probas -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./vp8i.h" -#include "../utils/bit_reader_inl.h" - -#define USE_GENERIC_TREE - -#ifdef USE_GENERIC_TREE -static const int8_t kYModesIntra4[18] = { - -B_DC_PRED, 1, - -B_TM_PRED, 2, - -B_VE_PRED, 3, - 4, 6, - -B_HE_PRED, 5, - -B_RD_PRED, -B_VR_PRED, - -B_LD_PRED, 7, - -B_VL_PRED, 8, - -B_HD_PRED, -B_HU_PRED -}; -#endif - -//------------------------------------------------------------------------------ -// Default probabilities - -// Paragraph 13.5 -static const uint8_t - CoeffsProba0[NUM_TYPES][NUM_BANDS][NUM_CTX][NUM_PROBAS] = { - { { { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } - }, - { { 253, 136, 254, 255, 228, 219, 128, 128, 128, 128, 128 }, - { 189, 129, 242, 255, 227, 213, 255, 219, 128, 128, 128 }, - { 106, 126, 227, 252, 214, 209, 255, 255, 128, 128, 128 } - }, - { { 1, 98, 248, 255, 236, 226, 255, 255, 128, 128, 128 }, - { 181, 133, 238, 254, 221, 234, 255, 154, 128, 128, 128 }, - { 78, 134, 202, 247, 198, 180, 255, 219, 128, 128, 128 }, - }, - { { 1, 185, 249, 255, 243, 255, 128, 128, 128, 128, 128 }, - { 184, 150, 247, 255, 236, 224, 128, 128, 128, 128, 128 }, - { 77, 110, 216, 255, 236, 230, 128, 128, 128, 128, 128 }, - }, - { { 1, 101, 251, 255, 241, 255, 128, 128, 128, 128, 128 }, - { 170, 139, 241, 252, 236, 209, 255, 255, 128, 128, 128 }, - { 37, 116, 196, 243, 228, 255, 255, 255, 128, 128, 128 } - }, - { { 1, 204, 254, 255, 245, 255, 128, 128, 128, 128, 128 }, - { 207, 160, 250, 255, 238, 128, 128, 128, 128, 128, 128 }, - { 102, 103, 231, 255, 211, 171, 128, 128, 128, 128, 128 } - }, - { { 1, 152, 252, 255, 240, 255, 128, 128, 128, 128, 128 }, - { 177, 135, 243, 255, 234, 225, 128, 128, 128, 128, 128 }, - { 80, 129, 211, 255, 194, 224, 128, 128, 128, 128, 128 } - }, - { { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 246, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 255, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } - } - }, - { { { 198, 35, 237, 223, 193, 187, 162, 160, 145, 155, 62 }, - { 131, 45, 198, 221, 172, 176, 220, 157, 252, 221, 1 }, - { 68, 47, 146, 208, 149, 167, 221, 162, 255, 223, 128 } - }, - { { 1, 149, 241, 255, 221, 224, 255, 255, 128, 128, 128 }, - { 184, 141, 234, 253, 222, 220, 255, 199, 128, 128, 128 }, - { 81, 99, 181, 242, 176, 190, 249, 202, 255, 255, 128 } - }, - { { 1, 129, 232, 253, 214, 197, 242, 196, 255, 255, 128 }, - { 99, 121, 210, 250, 201, 198, 255, 202, 128, 128, 128 }, - { 23, 91, 163, 242, 170, 187, 247, 210, 255, 255, 128 } - }, - { { 1, 200, 246, 255, 234, 255, 128, 128, 128, 128, 128 }, - { 109, 178, 241, 255, 231, 245, 255, 255, 128, 128, 128 }, - { 44, 130, 201, 253, 205, 192, 255, 255, 128, 128, 128 } - }, - { { 1, 132, 239, 251, 219, 209, 255, 165, 128, 128, 128 }, - { 94, 136, 225, 251, 218, 190, 255, 255, 128, 128, 128 }, - { 22, 100, 174, 245, 186, 161, 255, 199, 128, 128, 128 } - }, - { { 1, 182, 249, 255, 232, 235, 128, 128, 128, 128, 128 }, - { 124, 143, 241, 255, 227, 234, 128, 128, 128, 128, 128 }, - { 35, 77, 181, 251, 193, 211, 255, 205, 128, 128, 128 } - }, - { { 1, 157, 247, 255, 236, 231, 255, 255, 128, 128, 128 }, - { 121, 141, 235, 255, 225, 227, 255, 255, 128, 128, 128 }, - { 45, 99, 188, 251, 195, 217, 255, 224, 128, 128, 128 } - }, - { { 1, 1, 251, 255, 213, 255, 128, 128, 128, 128, 128 }, - { 203, 1, 248, 255, 255, 128, 128, 128, 128, 128, 128 }, - { 137, 1, 177, 255, 224, 255, 128, 128, 128, 128, 128 } - } - }, - { { { 253, 9, 248, 251, 207, 208, 255, 192, 128, 128, 128 }, - { 175, 13, 224, 243, 193, 185, 249, 198, 255, 255, 128 }, - { 73, 17, 171, 221, 161, 179, 236, 167, 255, 234, 128 } - }, - { { 1, 95, 247, 253, 212, 183, 255, 255, 128, 128, 128 }, - { 239, 90, 244, 250, 211, 209, 255, 255, 128, 128, 128 }, - { 155, 77, 195, 248, 188, 195, 255, 255, 128, 128, 128 } - }, - { { 1, 24, 239, 251, 218, 219, 255, 205, 128, 128, 128 }, - { 201, 51, 219, 255, 196, 186, 128, 128, 128, 128, 128 }, - { 69, 46, 190, 239, 201, 218, 255, 228, 128, 128, 128 } - }, - { { 1, 191, 251, 255, 255, 128, 128, 128, 128, 128, 128 }, - { 223, 165, 249, 255, 213, 255, 128, 128, 128, 128, 128 }, - { 141, 124, 248, 255, 255, 128, 128, 128, 128, 128, 128 } - }, - { { 1, 16, 248, 255, 255, 128, 128, 128, 128, 128, 128 }, - { 190, 36, 230, 255, 236, 255, 128, 128, 128, 128, 128 }, - { 149, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 } - }, - { { 1, 226, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 247, 192, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 240, 128, 255, 128, 128, 128, 128, 128, 128, 128, 128 } - }, - { { 1, 134, 252, 255, 255, 128, 128, 128, 128, 128, 128 }, - { 213, 62, 250, 255, 255, 128, 128, 128, 128, 128, 128 }, - { 55, 93, 255, 128, 128, 128, 128, 128, 128, 128, 128 } - }, - { { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } - } - }, - { { { 202, 24, 213, 235, 186, 191, 220, 160, 240, 175, 255 }, - { 126, 38, 182, 232, 169, 184, 228, 174, 255, 187, 128 }, - { 61, 46, 138, 219, 151, 178, 240, 170, 255, 216, 128 } - }, - { { 1, 112, 230, 250, 199, 191, 247, 159, 255, 255, 128 }, - { 166, 109, 228, 252, 211, 215, 255, 174, 128, 128, 128 }, - { 39, 77, 162, 232, 172, 180, 245, 178, 255, 255, 128 } - }, - { { 1, 52, 220, 246, 198, 199, 249, 220, 255, 255, 128 }, - { 124, 74, 191, 243, 183, 193, 250, 221, 255, 255, 128 }, - { 24, 71, 130, 219, 154, 170, 243, 182, 255, 255, 128 } - }, - { { 1, 182, 225, 249, 219, 240, 255, 224, 128, 128, 128 }, - { 149, 150, 226, 252, 216, 205, 255, 171, 128, 128, 128 }, - { 28, 108, 170, 242, 183, 194, 254, 223, 255, 255, 128 } - }, - { { 1, 81, 230, 252, 204, 203, 255, 192, 128, 128, 128 }, - { 123, 102, 209, 247, 188, 196, 255, 233, 128, 128, 128 }, - { 20, 95, 153, 243, 164, 173, 255, 203, 128, 128, 128 } - }, - { { 1, 222, 248, 255, 216, 213, 128, 128, 128, 128, 128 }, - { 168, 175, 246, 252, 235, 205, 255, 255, 128, 128, 128 }, - { 47, 116, 215, 255, 211, 212, 255, 255, 128, 128, 128 } - }, - { { 1, 121, 236, 253, 212, 214, 255, 255, 128, 128, 128 }, - { 141, 84, 213, 252, 201, 202, 255, 219, 128, 128, 128 }, - { 42, 80, 160, 240, 162, 185, 255, 205, 128, 128, 128 } - }, - { { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 244, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 238, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 } - } - } -}; - -// Paragraph 11.5 -static const uint8_t kBModesProba[NUM_BMODES][NUM_BMODES][NUM_BMODES - 1] = { - { { 231, 120, 48, 89, 115, 113, 120, 152, 112 }, - { 152, 179, 64, 126, 170, 118, 46, 70, 95 }, - { 175, 69, 143, 80, 85, 82, 72, 155, 103 }, - { 56, 58, 10, 171, 218, 189, 17, 13, 152 }, - { 114, 26, 17, 163, 44, 195, 21, 10, 173 }, - { 121, 24, 80, 195, 26, 62, 44, 64, 85 }, - { 144, 71, 10, 38, 171, 213, 144, 34, 26 }, - { 170, 46, 55, 19, 136, 160, 33, 206, 71 }, - { 63, 20, 8, 114, 114, 208, 12, 9, 226 }, - { 81, 40, 11, 96, 182, 84, 29, 16, 36 } }, - { { 134, 183, 89, 137, 98, 101, 106, 165, 148 }, - { 72, 187, 100, 130, 157, 111, 32, 75, 80 }, - { 66, 102, 167, 99, 74, 62, 40, 234, 128 }, - { 41, 53, 9, 178, 241, 141, 26, 8, 107 }, - { 74, 43, 26, 146, 73, 166, 49, 23, 157 }, - { 65, 38, 105, 160, 51, 52, 31, 115, 128 }, - { 104, 79, 12, 27, 217, 255, 87, 17, 7 }, - { 87, 68, 71, 44, 114, 51, 15, 186, 23 }, - { 47, 41, 14, 110, 182, 183, 21, 17, 194 }, - { 66, 45, 25, 102, 197, 189, 23, 18, 22 } }, - { { 88, 88, 147, 150, 42, 46, 45, 196, 205 }, - { 43, 97, 183, 117, 85, 38, 35, 179, 61 }, - { 39, 53, 200, 87, 26, 21, 43, 232, 171 }, - { 56, 34, 51, 104, 114, 102, 29, 93, 77 }, - { 39, 28, 85, 171, 58, 165, 90, 98, 64 }, - { 34, 22, 116, 206, 23, 34, 43, 166, 73 }, - { 107, 54, 32, 26, 51, 1, 81, 43, 31 }, - { 68, 25, 106, 22, 64, 171, 36, 225, 114 }, - { 34, 19, 21, 102, 132, 188, 16, 76, 124 }, - { 62, 18, 78, 95, 85, 57, 50, 48, 51 } }, - { { 193, 101, 35, 159, 215, 111, 89, 46, 111 }, - { 60, 148, 31, 172, 219, 228, 21, 18, 111 }, - { 112, 113, 77, 85, 179, 255, 38, 120, 114 }, - { 40, 42, 1, 196, 245, 209, 10, 25, 109 }, - { 88, 43, 29, 140, 166, 213, 37, 43, 154 }, - { 61, 63, 30, 155, 67, 45, 68, 1, 209 }, - { 100, 80, 8, 43, 154, 1, 51, 26, 71 }, - { 142, 78, 78, 16, 255, 128, 34, 197, 171 }, - { 41, 40, 5, 102, 211, 183, 4, 1, 221 }, - { 51, 50, 17, 168, 209, 192, 23, 25, 82 } }, - { { 138, 31, 36, 171, 27, 166, 38, 44, 229 }, - { 67, 87, 58, 169, 82, 115, 26, 59, 179 }, - { 63, 59, 90, 180, 59, 166, 93, 73, 154 }, - { 40, 40, 21, 116, 143, 209, 34, 39, 175 }, - { 47, 15, 16, 183, 34, 223, 49, 45, 183 }, - { 46, 17, 33, 183, 6, 98, 15, 32, 183 }, - { 57, 46, 22, 24, 128, 1, 54, 17, 37 }, - { 65, 32, 73, 115, 28, 128, 23, 128, 205 }, - { 40, 3, 9, 115, 51, 192, 18, 6, 223 }, - { 87, 37, 9, 115, 59, 77, 64, 21, 47 } }, - { { 104, 55, 44, 218, 9, 54, 53, 130, 226 }, - { 64, 90, 70, 205, 40, 41, 23, 26, 57 }, - { 54, 57, 112, 184, 5, 41, 38, 166, 213 }, - { 30, 34, 26, 133, 152, 116, 10, 32, 134 }, - { 39, 19, 53, 221, 26, 114, 32, 73, 255 }, - { 31, 9, 65, 234, 2, 15, 1, 118, 73 }, - { 75, 32, 12, 51, 192, 255, 160, 43, 51 }, - { 88, 31, 35, 67, 102, 85, 55, 186, 85 }, - { 56, 21, 23, 111, 59, 205, 45, 37, 192 }, - { 55, 38, 70, 124, 73, 102, 1, 34, 98 } }, - { { 125, 98, 42, 88, 104, 85, 117, 175, 82 }, - { 95, 84, 53, 89, 128, 100, 113, 101, 45 }, - { 75, 79, 123, 47, 51, 128, 81, 171, 1 }, - { 57, 17, 5, 71, 102, 57, 53, 41, 49 }, - { 38, 33, 13, 121, 57, 73, 26, 1, 85 }, - { 41, 10, 67, 138, 77, 110, 90, 47, 114 }, - { 115, 21, 2, 10, 102, 255, 166, 23, 6 }, - { 101, 29, 16, 10, 85, 128, 101, 196, 26 }, - { 57, 18, 10, 102, 102, 213, 34, 20, 43 }, - { 117, 20, 15, 36, 163, 128, 68, 1, 26 } }, - { { 102, 61, 71, 37, 34, 53, 31, 243, 192 }, - { 69, 60, 71, 38, 73, 119, 28, 222, 37 }, - { 68, 45, 128, 34, 1, 47, 11, 245, 171 }, - { 62, 17, 19, 70, 146, 85, 55, 62, 70 }, - { 37, 43, 37, 154, 100, 163, 85, 160, 1 }, - { 63, 9, 92, 136, 28, 64, 32, 201, 85 }, - { 75, 15, 9, 9, 64, 255, 184, 119, 16 }, - { 86, 6, 28, 5, 64, 255, 25, 248, 1 }, - { 56, 8, 17, 132, 137, 255, 55, 116, 128 }, - { 58, 15, 20, 82, 135, 57, 26, 121, 40 } }, - { { 164, 50, 31, 137, 154, 133, 25, 35, 218 }, - { 51, 103, 44, 131, 131, 123, 31, 6, 158 }, - { 86, 40, 64, 135, 148, 224, 45, 183, 128 }, - { 22, 26, 17, 131, 240, 154, 14, 1, 209 }, - { 45, 16, 21, 91, 64, 222, 7, 1, 197 }, - { 56, 21, 39, 155, 60, 138, 23, 102, 213 }, - { 83, 12, 13, 54, 192, 255, 68, 47, 28 }, - { 85, 26, 85, 85, 128, 128, 32, 146, 171 }, - { 18, 11, 7, 63, 144, 171, 4, 4, 246 }, - { 35, 27, 10, 146, 174, 171, 12, 26, 128 } }, - { { 190, 80, 35, 99, 180, 80, 126, 54, 45 }, - { 85, 126, 47, 87, 176, 51, 41, 20, 32 }, - { 101, 75, 128, 139, 118, 146, 116, 128, 85 }, - { 56, 41, 15, 176, 236, 85, 37, 9, 62 }, - { 71, 30, 17, 119, 118, 255, 17, 18, 138 }, - { 101, 38, 60, 138, 55, 70, 43, 26, 142 }, - { 146, 36, 19, 30, 171, 255, 97, 27, 20 }, - { 138, 45, 61, 62, 219, 1, 81, 188, 64 }, - { 32, 41, 20, 117, 151, 142, 20, 21, 163 }, - { 112, 19, 12, 61, 195, 128, 48, 4, 24 } } -}; - -void VP8ResetProba(VP8Proba* const proba) { - memset(proba->segments_, 255u, sizeof(proba->segments_)); - // proba->bands_[][] is initialized later -} - -static void ParseIntraMode(VP8BitReader* const br, - VP8Decoder* const dec, int mb_x) { - uint8_t* const top = dec->intra_t_ + 4 * mb_x; - uint8_t* const left = dec->intra_l_; - VP8MBData* const block = dec->mb_data_ + mb_x; - - // Note: we don't save segment map (yet), as we don't expect - // to decode more than 1 keyframe. - if (dec->segment_hdr_.update_map_) { - // Hardcoded tree parsing - block->segment_ = !VP8GetBit(br, dec->proba_.segments_[0]) - ? VP8GetBit(br, dec->proba_.segments_[1]) - : 2 + VP8GetBit(br, dec->proba_.segments_[2]); - } else { - block->segment_ = 0; // default for intra - } - if (dec->use_skip_proba_) block->skip_ = VP8GetBit(br, dec->skip_p_); - - block->is_i4x4_ = !VP8GetBit(br, 145); // decide for B_PRED first - if (!block->is_i4x4_) { - // Hardcoded 16x16 intra-mode decision tree. - const int ymode = - VP8GetBit(br, 156) ? (VP8GetBit(br, 128) ? TM_PRED : H_PRED) - : (VP8GetBit(br, 163) ? V_PRED : DC_PRED); - block->imodes_[0] = ymode; - memset(top, ymode, 4 * sizeof(*top)); - memset(left, ymode, 4 * sizeof(*left)); - } else { - uint8_t* modes = block->imodes_; - int y; - for (y = 0; y < 4; ++y) { - int ymode = left[y]; - int x; - for (x = 0; x < 4; ++x) { - const uint8_t* const prob = kBModesProba[top[x]][ymode]; -#ifdef USE_GENERIC_TREE - // Generic tree-parsing - int i = kYModesIntra4[VP8GetBit(br, prob[0])]; - while (i > 0) { - i = kYModesIntra4[2 * i + VP8GetBit(br, prob[i])]; - } - ymode = -i; -#else - // Hardcoded tree parsing - ymode = !VP8GetBit(br, prob[0]) ? B_DC_PRED : - !VP8GetBit(br, prob[1]) ? B_TM_PRED : - !VP8GetBit(br, prob[2]) ? B_VE_PRED : - !VP8GetBit(br, prob[3]) ? - (!VP8GetBit(br, prob[4]) ? B_HE_PRED : - (!VP8GetBit(br, prob[5]) ? B_RD_PRED : B_VR_PRED)) : - (!VP8GetBit(br, prob[6]) ? B_LD_PRED : - (!VP8GetBit(br, prob[7]) ? B_VL_PRED : - (!VP8GetBit(br, prob[8]) ? B_HD_PRED : B_HU_PRED))); -#endif // USE_GENERIC_TREE - top[x] = ymode; - } - memcpy(modes, top, 4 * sizeof(*top)); - modes += 4; - left[y] = ymode; - } - } - // Hardcoded UVMode decision tree - block->uvmode_ = !VP8GetBit(br, 142) ? DC_PRED - : !VP8GetBit(br, 114) ? V_PRED - : VP8GetBit(br, 183) ? TM_PRED : H_PRED; -} - -int VP8ParseIntraModeRow(VP8BitReader* const br, VP8Decoder* const dec) { - int mb_x; - for (mb_x = 0; mb_x < dec->mb_w_; ++mb_x) { - ParseIntraMode(br, dec, mb_x); - } - return !dec->br_.eof_; -} - -//------------------------------------------------------------------------------ -// Paragraph 13 - -static const uint8_t - CoeffsUpdateProba[NUM_TYPES][NUM_BANDS][NUM_CTX][NUM_PROBAS] = { - { { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 176, 246, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 223, 241, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 249, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 244, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 234, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 246, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 239, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 251, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 251, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 253, 255, 254, 255, 255, 255, 255, 255, 255 }, - { 250, 255, 254, 255, 254, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - } - }, - { { { 217, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 225, 252, 241, 253, 255, 255, 254, 255, 255, 255, 255 }, - { 234, 250, 241, 250, 253, 255, 253, 254, 255, 255, 255 } - }, - { { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 223, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 238, 253, 254, 254, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 249, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 253, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 247, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - } - }, - { { { 186, 251, 250, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 234, 251, 244, 254, 255, 255, 255, 255, 255, 255, 255 }, - { 251, 251, 243, 253, 254, 255, 254, 255, 255, 255, 255 } - }, - { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 236, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 251, 253, 253, 254, 254, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - } - }, - { { { 248, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 250, 254, 252, 254, 255, 255, 255, 255, 255, 255, 255 }, - { 248, 254, 249, 253, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 246, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 252, 254, 251, 254, 254, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 248, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 253, 255, 254, 254, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 245, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 253, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 251, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 252, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 249, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - } - } -}; - -// Paragraph 9.9 - -static const int kBands[16 + 1] = { - 0, 1, 2, 3, 6, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6, 7, - 0 // extra entry as sentinel -}; - -void VP8ParseProba(VP8BitReader* const br, VP8Decoder* const dec) { - VP8Proba* const proba = &dec->proba_; - int t, b, c, p; - for (t = 0; t < NUM_TYPES; ++t) { - for (b = 0; b < NUM_BANDS; ++b) { - for (c = 0; c < NUM_CTX; ++c) { - for (p = 0; p < NUM_PROBAS; ++p) { - const int v = VP8GetBit(br, CoeffsUpdateProba[t][b][c][p]) ? - VP8GetValue(br, 8) : CoeffsProba0[t][b][c][p]; - proba->bands_[t][b].probas_[c][p] = v; - } - } - } - for (b = 0; b < 16 + 1; ++b) { - proba->bands_ptr_[t][b] = &proba->bands_[t][kBands[b]]; - } - } - dec->use_skip_proba_ = VP8Get(br); - if (dec->use_skip_proba_) { - dec->skip_p_ = VP8GetValue(br, 8); - } -} - diff --git a/drivers/webp/dec/vp8.c b/drivers/webp/dec/vp8.c deleted file mode 100644 index 336680c38c..0000000000 --- a/drivers/webp/dec/vp8.c +++ /dev/null @@ -1,667 +0,0 @@ -// Copyright 2010 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// main entry for the decoder -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <stdlib.h> - -#include "./alphai.h" -#include "./vp8i.h" -#include "./vp8li.h" -#include "./webpi.h" -#include "../utils/bit_reader_inl.h" -#include "../utils/utils.h" - -//------------------------------------------------------------------------------ - -int WebPGetDecoderVersion(void) { - return (DEC_MAJ_VERSION << 16) | (DEC_MIN_VERSION << 8) | DEC_REV_VERSION; -} - -//------------------------------------------------------------------------------ -// VP8Decoder - -static void SetOk(VP8Decoder* const dec) { - dec->status_ = VP8_STATUS_OK; - dec->error_msg_ = "OK"; -} - -int VP8InitIoInternal(VP8Io* const io, int version) { - if (WEBP_ABI_IS_INCOMPATIBLE(version, WEBP_DECODER_ABI_VERSION)) { - return 0; // mismatch error - } - if (io != NULL) { - memset(io, 0, sizeof(*io)); - } - return 1; -} - -VP8Decoder* VP8New(void) { - VP8Decoder* const dec = (VP8Decoder*)WebPSafeCalloc(1ULL, sizeof(*dec)); - if (dec != NULL) { - SetOk(dec); - WebPGetWorkerInterface()->Init(&dec->worker_); - dec->ready_ = 0; - dec->num_parts_minus_one_ = 0; - } - return dec; -} - -VP8StatusCode VP8Status(VP8Decoder* const dec) { - if (!dec) return VP8_STATUS_INVALID_PARAM; - return dec->status_; -} - -const char* VP8StatusMessage(VP8Decoder* const dec) { - if (dec == NULL) return "no object"; - if (!dec->error_msg_) return "OK"; - return dec->error_msg_; -} - -void VP8Delete(VP8Decoder* const dec) { - if (dec != NULL) { - VP8Clear(dec); - WebPSafeFree(dec); - } -} - -int VP8SetError(VP8Decoder* const dec, - VP8StatusCode error, const char* const msg) { - // The oldest error reported takes precedence over the new one. - if (dec->status_ == VP8_STATUS_OK) { - dec->status_ = error; - dec->error_msg_ = msg; - dec->ready_ = 0; - } - return 0; -} - -//------------------------------------------------------------------------------ - -int VP8CheckSignature(const uint8_t* const data, size_t data_size) { - return (data_size >= 3 && - data[0] == 0x9d && data[1] == 0x01 && data[2] == 0x2a); -} - -int VP8GetInfo(const uint8_t* data, size_t data_size, size_t chunk_size, - int* const width, int* const height) { - if (data == NULL || data_size < VP8_FRAME_HEADER_SIZE) { - return 0; // not enough data - } - // check signature - if (!VP8CheckSignature(data + 3, data_size - 3)) { - return 0; // Wrong signature. - } else { - const uint32_t bits = data[0] | (data[1] << 8) | (data[2] << 16); - const int key_frame = !(bits & 1); - const int w = ((data[7] << 8) | data[6]) & 0x3fff; - const int h = ((data[9] << 8) | data[8]) & 0x3fff; - - if (!key_frame) { // Not a keyframe. - return 0; - } - - if (((bits >> 1) & 7) > 3) { - return 0; // unknown profile - } - if (!((bits >> 4) & 1)) { - return 0; // first frame is invisible! - } - if (((bits >> 5)) >= chunk_size) { // partition_length - return 0; // inconsistent size information. - } - if (w == 0 || h == 0) { - return 0; // We don't support both width and height to be zero. - } - - if (width) { - *width = w; - } - if (height) { - *height = h; - } - - return 1; - } -} - -//------------------------------------------------------------------------------ -// Header parsing - -static void ResetSegmentHeader(VP8SegmentHeader* const hdr) { - assert(hdr != NULL); - hdr->use_segment_ = 0; - hdr->update_map_ = 0; - hdr->absolute_delta_ = 1; - memset(hdr->quantizer_, 0, sizeof(hdr->quantizer_)); - memset(hdr->filter_strength_, 0, sizeof(hdr->filter_strength_)); -} - -// Paragraph 9.3 -static int ParseSegmentHeader(VP8BitReader* br, - VP8SegmentHeader* hdr, VP8Proba* proba) { - assert(br != NULL); - assert(hdr != NULL); - hdr->use_segment_ = VP8Get(br); - if (hdr->use_segment_) { - hdr->update_map_ = VP8Get(br); - if (VP8Get(br)) { // update data - int s; - hdr->absolute_delta_ = VP8Get(br); - for (s = 0; s < NUM_MB_SEGMENTS; ++s) { - hdr->quantizer_[s] = VP8Get(br) ? VP8GetSignedValue(br, 7) : 0; - } - for (s = 0; s < NUM_MB_SEGMENTS; ++s) { - hdr->filter_strength_[s] = VP8Get(br) ? VP8GetSignedValue(br, 6) : 0; - } - } - if (hdr->update_map_) { - int s; - for (s = 0; s < MB_FEATURE_TREE_PROBS; ++s) { - proba->segments_[s] = VP8Get(br) ? VP8GetValue(br, 8) : 255u; - } - } - } else { - hdr->update_map_ = 0; - } - return !br->eof_; -} - -// Paragraph 9.5 -// This function returns VP8_STATUS_SUSPENDED if we don't have all the -// necessary data in 'buf'. -// This case is not necessarily an error (for incremental decoding). -// Still, no bitreader is ever initialized to make it possible to read -// unavailable memory. -// If we don't even have the partitions' sizes, than VP8_STATUS_NOT_ENOUGH_DATA -// is returned, and this is an unrecoverable error. -// If the partitions were positioned ok, VP8_STATUS_OK is returned. -static VP8StatusCode ParsePartitions(VP8Decoder* const dec, - const uint8_t* buf, size_t size) { - VP8BitReader* const br = &dec->br_; - const uint8_t* sz = buf; - const uint8_t* buf_end = buf + size; - const uint8_t* part_start; - size_t size_left = size; - size_t last_part; - size_t p; - - dec->num_parts_minus_one_ = (1 << VP8GetValue(br, 2)) - 1; - last_part = dec->num_parts_minus_one_; - if (size < 3 * last_part) { - // we can't even read the sizes with sz[]! That's a failure. - return VP8_STATUS_NOT_ENOUGH_DATA; - } - part_start = buf + last_part * 3; - size_left -= last_part * 3; - for (p = 0; p < last_part; ++p) { - size_t psize = sz[0] | (sz[1] << 8) | (sz[2] << 16); - if (psize > size_left) psize = size_left; - VP8InitBitReader(dec->parts_ + p, part_start, psize); - part_start += psize; - size_left -= psize; - sz += 3; - } - VP8InitBitReader(dec->parts_ + last_part, part_start, size_left); - return (part_start < buf_end) ? VP8_STATUS_OK : - VP8_STATUS_SUSPENDED; // Init is ok, but there's not enough data -} - -// Paragraph 9.4 -static int ParseFilterHeader(VP8BitReader* br, VP8Decoder* const dec) { - VP8FilterHeader* const hdr = &dec->filter_hdr_; - hdr->simple_ = VP8Get(br); - hdr->level_ = VP8GetValue(br, 6); - hdr->sharpness_ = VP8GetValue(br, 3); - hdr->use_lf_delta_ = VP8Get(br); - if (hdr->use_lf_delta_) { - if (VP8Get(br)) { // update lf-delta? - int i; - for (i = 0; i < NUM_REF_LF_DELTAS; ++i) { - if (VP8Get(br)) { - hdr->ref_lf_delta_[i] = VP8GetSignedValue(br, 6); - } - } - for (i = 0; i < NUM_MODE_LF_DELTAS; ++i) { - if (VP8Get(br)) { - hdr->mode_lf_delta_[i] = VP8GetSignedValue(br, 6); - } - } - } - } - dec->filter_type_ = (hdr->level_ == 0) ? 0 : hdr->simple_ ? 1 : 2; - return !br->eof_; -} - -// Topmost call -int VP8GetHeaders(VP8Decoder* const dec, VP8Io* const io) { - const uint8_t* buf; - size_t buf_size; - VP8FrameHeader* frm_hdr; - VP8PictureHeader* pic_hdr; - VP8BitReader* br; - VP8StatusCode status; - - if (dec == NULL) { - return 0; - } - SetOk(dec); - if (io == NULL) { - return VP8SetError(dec, VP8_STATUS_INVALID_PARAM, - "null VP8Io passed to VP8GetHeaders()"); - } - buf = io->data; - buf_size = io->data_size; - if (buf_size < 4) { - return VP8SetError(dec, VP8_STATUS_NOT_ENOUGH_DATA, - "Truncated header."); - } - - // Paragraph 9.1 - { - const uint32_t bits = buf[0] | (buf[1] << 8) | (buf[2] << 16); - frm_hdr = &dec->frm_hdr_; - frm_hdr->key_frame_ = !(bits & 1); - frm_hdr->profile_ = (bits >> 1) & 7; - frm_hdr->show_ = (bits >> 4) & 1; - frm_hdr->partition_length_ = (bits >> 5); - if (frm_hdr->profile_ > 3) - return VP8SetError(dec, VP8_STATUS_BITSTREAM_ERROR, - "Incorrect keyframe parameters."); - if (!frm_hdr->show_) - return VP8SetError(dec, VP8_STATUS_UNSUPPORTED_FEATURE, - "Frame not displayable."); - buf += 3; - buf_size -= 3; - } - - pic_hdr = &dec->pic_hdr_; - if (frm_hdr->key_frame_) { - // Paragraph 9.2 - if (buf_size < 7) { - return VP8SetError(dec, VP8_STATUS_NOT_ENOUGH_DATA, - "cannot parse picture header"); - } - if (!VP8CheckSignature(buf, buf_size)) { - return VP8SetError(dec, VP8_STATUS_BITSTREAM_ERROR, - "Bad code word"); - } - pic_hdr->width_ = ((buf[4] << 8) | buf[3]) & 0x3fff; - pic_hdr->xscale_ = buf[4] >> 6; // ratio: 1, 5/4 5/3 or 2 - pic_hdr->height_ = ((buf[6] << 8) | buf[5]) & 0x3fff; - pic_hdr->yscale_ = buf[6] >> 6; - buf += 7; - buf_size -= 7; - - dec->mb_w_ = (pic_hdr->width_ + 15) >> 4; - dec->mb_h_ = (pic_hdr->height_ + 15) >> 4; - - // Setup default output area (can be later modified during io->setup()) - io->width = pic_hdr->width_; - io->height = pic_hdr->height_; - // IMPORTANT! use some sane dimensions in crop_* and scaled_* fields. - // So they can be used interchangeably without always testing for - // 'use_cropping'. - io->use_cropping = 0; - io->crop_top = 0; - io->crop_left = 0; - io->crop_right = io->width; - io->crop_bottom = io->height; - io->use_scaling = 0; - io->scaled_width = io->width; - io->scaled_height = io->height; - - io->mb_w = io->width; // sanity check - io->mb_h = io->height; // ditto - - VP8ResetProba(&dec->proba_); - ResetSegmentHeader(&dec->segment_hdr_); - } - - // Check if we have all the partition #0 available, and initialize dec->br_ - // to read this partition (and this partition only). - if (frm_hdr->partition_length_ > buf_size) { - return VP8SetError(dec, VP8_STATUS_NOT_ENOUGH_DATA, - "bad partition length"); - } - - br = &dec->br_; - VP8InitBitReader(br, buf, frm_hdr->partition_length_); - buf += frm_hdr->partition_length_; - buf_size -= frm_hdr->partition_length_; - - if (frm_hdr->key_frame_) { - pic_hdr->colorspace_ = VP8Get(br); - pic_hdr->clamp_type_ = VP8Get(br); - } - if (!ParseSegmentHeader(br, &dec->segment_hdr_, &dec->proba_)) { - return VP8SetError(dec, VP8_STATUS_BITSTREAM_ERROR, - "cannot parse segment header"); - } - // Filter specs - if (!ParseFilterHeader(br, dec)) { - return VP8SetError(dec, VP8_STATUS_BITSTREAM_ERROR, - "cannot parse filter header"); - } - status = ParsePartitions(dec, buf, buf_size); - if (status != VP8_STATUS_OK) { - return VP8SetError(dec, status, "cannot parse partitions"); - } - - // quantizer change - VP8ParseQuant(dec); - - // Frame buffer marking - if (!frm_hdr->key_frame_) { - return VP8SetError(dec, VP8_STATUS_UNSUPPORTED_FEATURE, - "Not a key frame."); - } - - VP8Get(br); // ignore the value of update_proba_ - - VP8ParseProba(br, dec); - - // sanitized state - dec->ready_ = 1; - return 1; -} - -//------------------------------------------------------------------------------ -// Residual decoding (Paragraph 13.2 / 13.3) - -static const uint8_t kCat3[] = { 173, 148, 140, 0 }; -static const uint8_t kCat4[] = { 176, 155, 140, 135, 0 }; -static const uint8_t kCat5[] = { 180, 157, 141, 134, 130, 0 }; -static const uint8_t kCat6[] = - { 254, 254, 243, 230, 196, 177, 153, 140, 133, 130, 129, 0 }; -static const uint8_t* const kCat3456[] = { kCat3, kCat4, kCat5, kCat6 }; -static const uint8_t kZigzag[16] = { - 0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15 -}; - -// See section 13-2: http://tools.ietf.org/html/rfc6386#section-13.2 -static int GetLargeValue(VP8BitReader* const br, const uint8_t* const p) { - int v; - if (!VP8GetBit(br, p[3])) { - if (!VP8GetBit(br, p[4])) { - v = 2; - } else { - v = 3 + VP8GetBit(br, p[5]); - } - } else { - if (!VP8GetBit(br, p[6])) { - if (!VP8GetBit(br, p[7])) { - v = 5 + VP8GetBit(br, 159); - } else { - v = 7 + 2 * VP8GetBit(br, 165); - v += VP8GetBit(br, 145); - } - } else { - const uint8_t* tab; - const int bit1 = VP8GetBit(br, p[8]); - const int bit0 = VP8GetBit(br, p[9 + bit1]); - const int cat = 2 * bit1 + bit0; - v = 0; - for (tab = kCat3456[cat]; *tab; ++tab) { - v += v + VP8GetBit(br, *tab); - } - v += 3 + (8 << cat); - } - } - return v; -} - -// Returns the position of the last non-zero coeff plus one -static int GetCoeffs(VP8BitReader* const br, const VP8BandProbas* const prob[], - int ctx, const quant_t dq, int n, int16_t* out) { - const uint8_t* p = prob[n]->probas_[ctx]; - for (; n < 16; ++n) { - if (!VP8GetBit(br, p[0])) { - return n; // previous coeff was last non-zero coeff - } - while (!VP8GetBit(br, p[1])) { // sequence of zero coeffs - p = prob[++n]->probas_[0]; - if (n == 16) return 16; - } - { // non zero coeff - const VP8ProbaArray* const p_ctx = &prob[n + 1]->probas_[0]; - int v; - if (!VP8GetBit(br, p[2])) { - v = 1; - p = p_ctx[1]; - } else { - v = GetLargeValue(br, p); - p = p_ctx[2]; - } - out[kZigzag[n]] = VP8GetSigned(br, v) * dq[n > 0]; - } - } - return 16; -} - -static WEBP_INLINE uint32_t NzCodeBits(uint32_t nz_coeffs, int nz, int dc_nz) { - nz_coeffs <<= 2; - nz_coeffs |= (nz > 3) ? 3 : (nz > 1) ? 2 : dc_nz; - return nz_coeffs; -} - -static int ParseResiduals(VP8Decoder* const dec, - VP8MB* const mb, VP8BitReader* const token_br) { - const VP8BandProbas* (* const bands)[16 + 1] = dec->proba_.bands_ptr_; - const VP8BandProbas* const * ac_proba; - VP8MBData* const block = dec->mb_data_ + dec->mb_x_; - const VP8QuantMatrix* const q = &dec->dqm_[block->segment_]; - int16_t* dst = block->coeffs_; - VP8MB* const left_mb = dec->mb_info_ - 1; - uint8_t tnz, lnz; - uint32_t non_zero_y = 0; - uint32_t non_zero_uv = 0; - int x, y, ch; - uint32_t out_t_nz, out_l_nz; - int first; - - memset(dst, 0, 384 * sizeof(*dst)); - if (!block->is_i4x4_) { // parse DC - int16_t dc[16] = { 0 }; - const int ctx = mb->nz_dc_ + left_mb->nz_dc_; - const int nz = GetCoeffs(token_br, bands[1], ctx, q->y2_mat_, 0, dc); - mb->nz_dc_ = left_mb->nz_dc_ = (nz > 0); - if (nz > 1) { // more than just the DC -> perform the full transform - VP8TransformWHT(dc, dst); - } else { // only DC is non-zero -> inlined simplified transform - int i; - const int dc0 = (dc[0] + 3) >> 3; - for (i = 0; i < 16 * 16; i += 16) dst[i] = dc0; - } - first = 1; - ac_proba = bands[0]; - } else { - first = 0; - ac_proba = bands[3]; - } - - tnz = mb->nz_ & 0x0f; - lnz = left_mb->nz_ & 0x0f; - for (y = 0; y < 4; ++y) { - int l = lnz & 1; - uint32_t nz_coeffs = 0; - for (x = 0; x < 4; ++x) { - const int ctx = l + (tnz & 1); - const int nz = GetCoeffs(token_br, ac_proba, ctx, q->y1_mat_, first, dst); - l = (nz > first); - tnz = (tnz >> 1) | (l << 7); - nz_coeffs = NzCodeBits(nz_coeffs, nz, dst[0] != 0); - dst += 16; - } - tnz >>= 4; - lnz = (lnz >> 1) | (l << 7); - non_zero_y = (non_zero_y << 8) | nz_coeffs; - } - out_t_nz = tnz; - out_l_nz = lnz >> 4; - - for (ch = 0; ch < 4; ch += 2) { - uint32_t nz_coeffs = 0; - tnz = mb->nz_ >> (4 + ch); - lnz = left_mb->nz_ >> (4 + ch); - for (y = 0; y < 2; ++y) { - int l = lnz & 1; - for (x = 0; x < 2; ++x) { - const int ctx = l + (tnz & 1); - const int nz = GetCoeffs(token_br, bands[2], ctx, q->uv_mat_, 0, dst); - l = (nz > 0); - tnz = (tnz >> 1) | (l << 3); - nz_coeffs = NzCodeBits(nz_coeffs, nz, dst[0] != 0); - dst += 16; - } - tnz >>= 2; - lnz = (lnz >> 1) | (l << 5); - } - // Note: we don't really need the per-4x4 details for U/V blocks. - non_zero_uv |= nz_coeffs << (4 * ch); - out_t_nz |= (tnz << 4) << ch; - out_l_nz |= (lnz & 0xf0) << ch; - } - mb->nz_ = out_t_nz; - left_mb->nz_ = out_l_nz; - - block->non_zero_y_ = non_zero_y; - block->non_zero_uv_ = non_zero_uv; - - // We look at the mode-code of each block and check if some blocks have less - // than three non-zero coeffs (code < 2). This is to avoid dithering flat and - // empty blocks. - block->dither_ = (non_zero_uv & 0xaaaa) ? 0 : q->dither_; - - return !(non_zero_y | non_zero_uv); // will be used for further optimization -} - -//------------------------------------------------------------------------------ -// Main loop - -int VP8DecodeMB(VP8Decoder* const dec, VP8BitReader* const token_br) { - VP8MB* const left = dec->mb_info_ - 1; - VP8MB* const mb = dec->mb_info_ + dec->mb_x_; - VP8MBData* const block = dec->mb_data_ + dec->mb_x_; - int skip = dec->use_skip_proba_ ? block->skip_ : 0; - - if (!skip) { - skip = ParseResiduals(dec, mb, token_br); - } else { - left->nz_ = mb->nz_ = 0; - if (!block->is_i4x4_) { - left->nz_dc_ = mb->nz_dc_ = 0; - } - block->non_zero_y_ = 0; - block->non_zero_uv_ = 0; - block->dither_ = 0; - } - - if (dec->filter_type_ > 0) { // store filter info - VP8FInfo* const finfo = dec->f_info_ + dec->mb_x_; - *finfo = dec->fstrengths_[block->segment_][block->is_i4x4_]; - finfo->f_inner_ |= !skip; - } - - return !token_br->eof_; -} - -void VP8InitScanline(VP8Decoder* const dec) { - VP8MB* const left = dec->mb_info_ - 1; - left->nz_ = 0; - left->nz_dc_ = 0; - memset(dec->intra_l_, B_DC_PRED, sizeof(dec->intra_l_)); - dec->mb_x_ = 0; -} - -static int ParseFrame(VP8Decoder* const dec, VP8Io* io) { - for (dec->mb_y_ = 0; dec->mb_y_ < dec->br_mb_y_; ++dec->mb_y_) { - // Parse bitstream for this row. - VP8BitReader* const token_br = - &dec->parts_[dec->mb_y_ & dec->num_parts_minus_one_]; - if (!VP8ParseIntraModeRow(&dec->br_, dec)) { - return VP8SetError(dec, VP8_STATUS_NOT_ENOUGH_DATA, - "Premature end-of-partition0 encountered."); - } - for (; dec->mb_x_ < dec->mb_w_; ++dec->mb_x_) { - if (!VP8DecodeMB(dec, token_br)) { - return VP8SetError(dec, VP8_STATUS_NOT_ENOUGH_DATA, - "Premature end-of-file encountered."); - } - } - VP8InitScanline(dec); // Prepare for next scanline - - // Reconstruct, filter and emit the row. - if (!VP8ProcessRow(dec, io)) { - return VP8SetError(dec, VP8_STATUS_USER_ABORT, "Output aborted."); - } - } - if (dec->mt_method_ > 0) { - if (!WebPGetWorkerInterface()->Sync(&dec->worker_)) return 0; - } - - return 1; -} - -// Main entry point -int VP8Decode(VP8Decoder* const dec, VP8Io* const io) { - int ok = 0; - if (dec == NULL) { - return 0; - } - if (io == NULL) { - return VP8SetError(dec, VP8_STATUS_INVALID_PARAM, - "NULL VP8Io parameter in VP8Decode()."); - } - - if (!dec->ready_) { - if (!VP8GetHeaders(dec, io)) { - return 0; - } - } - assert(dec->ready_); - - // Finish setting up the decoding parameter. Will call io->setup(). - ok = (VP8EnterCritical(dec, io) == VP8_STATUS_OK); - if (ok) { // good to go. - // Will allocate memory and prepare everything. - if (ok) ok = VP8InitFrame(dec, io); - - // Main decoding loop - if (ok) ok = ParseFrame(dec, io); - - // Exit. - ok &= VP8ExitCritical(dec, io); - } - - if (!ok) { - VP8Clear(dec); - return 0; - } - - dec->ready_ = 0; - return ok; -} - -void VP8Clear(VP8Decoder* const dec) { - if (dec == NULL) { - return; - } - WebPGetWorkerInterface()->End(&dec->worker_); - WebPDeallocateAlphaMemory(dec); - WebPSafeFree(dec->mem_); - dec->mem_ = NULL; - dec->mem_size_ = 0; - memset(&dec->br_, 0, sizeof(dec->br_)); - dec->ready_ = 0; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/dec/vp8i.h b/drivers/webp/dec/vp8i.h deleted file mode 100644 index 00da02badc..0000000000 --- a/drivers/webp/dec/vp8i.h +++ /dev/null @@ -1,320 +0,0 @@ -// Copyright 2010 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// VP8 decoder: internal header. -// -// Author: Skal (pascal.massimino@gmail.com) - -#ifndef WEBP_DEC_VP8I_H_ -#define WEBP_DEC_VP8I_H_ - -#include <string.h> // for memcpy() -#include "./common.h" -#include "./vp8li.h" -#include "../utils/bit_reader.h" -#include "../utils/random.h" -#include "../utils/thread.h" -#include "../dsp/dsp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -//------------------------------------------------------------------------------ -// Various defines and enums - -// version numbers -#define DEC_MAJ_VERSION 0 -#define DEC_MIN_VERSION 5 -#define DEC_REV_VERSION 1 - -// YUV-cache parameters. Cache is 32-bytes wide (= one cacheline). -// Constraints are: We need to store one 16x16 block of luma samples (y), -// and two 8x8 chroma blocks (u/v). These are better be 16-bytes aligned, -// in order to be SIMD-friendly. We also need to store the top, left and -// top-left samples (from previously decoded blocks), along with four -// extra top-right samples for luma (intra4x4 prediction only). -// One possible layout is, using 32 * (17 + 9) bytes: -// -// .+------ <- only 1 pixel high -// .|yyyyt. -// .|yyyyt. -// .|yyyyt. -// .|yyyy.. -// .+--.+-- <- only 1 pixel high -// .|uu.|vv -// .|uu.|vv -// -// Every character is a 4x4 block, with legend: -// '.' = unused -// 'y' = y-samples 'u' = u-samples 'v' = u-samples -// '|' = left sample, '-' = top sample, '+' = top-left sample -// 't' = extra top-right sample for 4x4 modes -#define YUV_SIZE (BPS * 17 + BPS * 9) -#define Y_SIZE (BPS * 17) -#define Y_OFF (BPS * 1 + 8) -#define U_OFF (Y_OFF + BPS * 16 + BPS) -#define V_OFF (U_OFF + 16) - -// minimal width under which lossy multi-threading is always disabled -#define MIN_WIDTH_FOR_THREADS 512 - -//------------------------------------------------------------------------------ -// Headers - -typedef struct { - uint8_t key_frame_; - uint8_t profile_; - uint8_t show_; - uint32_t partition_length_; -} VP8FrameHeader; - -typedef struct { - uint16_t width_; - uint16_t height_; - uint8_t xscale_; - uint8_t yscale_; - uint8_t colorspace_; // 0 = YCbCr - uint8_t clamp_type_; -} VP8PictureHeader; - -// segment features -typedef struct { - int use_segment_; - int update_map_; // whether to update the segment map or not - int absolute_delta_; // absolute or delta values for quantizer and filter - int8_t quantizer_[NUM_MB_SEGMENTS]; // quantization changes - int8_t filter_strength_[NUM_MB_SEGMENTS]; // filter strength for segments -} VP8SegmentHeader; - -// probas associated to one of the contexts -typedef uint8_t VP8ProbaArray[NUM_PROBAS]; - -typedef struct { // all the probas associated to one band - VP8ProbaArray probas_[NUM_CTX]; -} VP8BandProbas; - -// Struct collecting all frame-persistent probabilities. -typedef struct { - uint8_t segments_[MB_FEATURE_TREE_PROBS]; - // Type: 0:Intra16-AC 1:Intra16-DC 2:Chroma 3:Intra4 - VP8BandProbas bands_[NUM_TYPES][NUM_BANDS]; - const VP8BandProbas* bands_ptr_[NUM_TYPES][16 + 1]; -} VP8Proba; - -// Filter parameters -typedef struct { - int simple_; // 0=complex, 1=simple - int level_; // [0..63] - int sharpness_; // [0..7] - int use_lf_delta_; - int ref_lf_delta_[NUM_REF_LF_DELTAS]; - int mode_lf_delta_[NUM_MODE_LF_DELTAS]; -} VP8FilterHeader; - -//------------------------------------------------------------------------------ -// Informations about the macroblocks. - -typedef struct { // filter specs - uint8_t f_limit_; // filter limit in [3..189], or 0 if no filtering - uint8_t f_ilevel_; // inner limit in [1..63] - uint8_t f_inner_; // do inner filtering? - uint8_t hev_thresh_; // high edge variance threshold in [0..2] -} VP8FInfo; - -typedef struct { // Top/Left Contexts used for syntax-parsing - uint8_t nz_; // non-zero AC/DC coeffs (4bit for luma + 4bit for chroma) - uint8_t nz_dc_; // non-zero DC coeff (1bit) -} VP8MB; - -// Dequantization matrices -typedef int quant_t[2]; // [DC / AC]. Can be 'uint16_t[2]' too (~slower). -typedef struct { - quant_t y1_mat_, y2_mat_, uv_mat_; - - int uv_quant_; // U/V quantizer value - int dither_; // dithering amplitude (0 = off, max=255) -} VP8QuantMatrix; - -// Data needed to reconstruct a macroblock -typedef struct { - int16_t coeffs_[384]; // 384 coeffs = (16+4+4) * 4*4 - uint8_t is_i4x4_; // true if intra4x4 - uint8_t imodes_[16]; // one 16x16 mode (#0) or sixteen 4x4 modes - uint8_t uvmode_; // chroma prediction mode - // bit-wise info about the content of each sub-4x4 blocks (in decoding order). - // Each of the 4x4 blocks for y/u/v is associated with a 2b code according to: - // code=0 -> no coefficient - // code=1 -> only DC - // code=2 -> first three coefficients are non-zero - // code=3 -> more than three coefficients are non-zero - // This allows to call specialized transform functions. - uint32_t non_zero_y_; - uint32_t non_zero_uv_; - uint8_t dither_; // local dithering strength (deduced from non_zero_*) - uint8_t skip_; - uint8_t segment_; -} VP8MBData; - -// Persistent information needed by the parallel processing -typedef struct { - int id_; // cache row to process (in [0..2]) - int mb_y_; // macroblock position of the row - int filter_row_; // true if row-filtering is needed - VP8FInfo* f_info_; // filter strengths (swapped with dec->f_info_) - VP8MBData* mb_data_; // reconstruction data (swapped with dec->mb_data_) - VP8Io io_; // copy of the VP8Io to pass to put() -} VP8ThreadContext; - -// Saved top samples, per macroblock. Fits into a cache-line. -typedef struct { - uint8_t y[16], u[8], v[8]; -} VP8TopSamples; - -//------------------------------------------------------------------------------ -// VP8Decoder: the main opaque structure handed over to user - -struct VP8Decoder { - VP8StatusCode status_; - int ready_; // true if ready to decode a picture with VP8Decode() - const char* error_msg_; // set when status_ is not OK. - - // Main data source - VP8BitReader br_; - - // headers - VP8FrameHeader frm_hdr_; - VP8PictureHeader pic_hdr_; - VP8FilterHeader filter_hdr_; - VP8SegmentHeader segment_hdr_; - - // Worker - WebPWorker worker_; - int mt_method_; // multi-thread method: 0=off, 1=[parse+recon][filter] - // 2=[parse][recon+filter] - int cache_id_; // current cache row - int num_caches_; // number of cached rows of 16 pixels (1, 2 or 3) - VP8ThreadContext thread_ctx_; // Thread context - - // dimension, in macroblock units. - int mb_w_, mb_h_; - - // Macroblock to process/filter, depending on cropping and filter_type. - int tl_mb_x_, tl_mb_y_; // top-left MB that must be in-loop filtered - int br_mb_x_, br_mb_y_; // last bottom-right MB that must be decoded - - // number of partitions minus one. - uint32_t num_parts_minus_one_; - // per-partition boolean decoders. - VP8BitReader parts_[MAX_NUM_PARTITIONS]; - - // Dithering strength, deduced from decoding options - int dither_; // whether to use dithering or not - VP8Random dithering_rg_; // random generator for dithering - - // dequantization (one set of DC/AC dequant factor per segment) - VP8QuantMatrix dqm_[NUM_MB_SEGMENTS]; - - // probabilities - VP8Proba proba_; - int use_skip_proba_; - uint8_t skip_p_; - - // Boundary data cache and persistent buffers. - uint8_t* intra_t_; // top intra modes values: 4 * mb_w_ - uint8_t intra_l_[4]; // left intra modes values - - VP8TopSamples* yuv_t_; // top y/u/v samples - - VP8MB* mb_info_; // contextual macroblock info (mb_w_ + 1) - VP8FInfo* f_info_; // filter strength info - uint8_t* yuv_b_; // main block for Y/U/V (size = YUV_SIZE) - - uint8_t* cache_y_; // macroblock row for storing unfiltered samples - uint8_t* cache_u_; - uint8_t* cache_v_; - int cache_y_stride_; - int cache_uv_stride_; - - // main memory chunk for the above data. Persistent. - void* mem_; - size_t mem_size_; - - // Per macroblock non-persistent infos. - int mb_x_, mb_y_; // current position, in macroblock units - VP8MBData* mb_data_; // parsed reconstruction data - - // Filtering side-info - int filter_type_; // 0=off, 1=simple, 2=complex - VP8FInfo fstrengths_[NUM_MB_SEGMENTS][2]; // precalculated per-segment/type - - // Alpha - struct ALPHDecoder* alph_dec_; // alpha-plane decoder object - const uint8_t* alpha_data_; // compressed alpha data (if present) - size_t alpha_data_size_; - int is_alpha_decoded_; // true if alpha_data_ is decoded in alpha_plane_ - uint8_t* alpha_plane_mem_; // memory allocated for alpha_plane_ - uint8_t* alpha_plane_; // output. Persistent, contains the whole data. - const uint8_t* alpha_prev_line_; // last decoded alpha row (or NULL) - int alpha_dithering_; // derived from decoding options (0=off, 100=full) -}; - -//------------------------------------------------------------------------------ -// internal functions. Not public. - -// in vp8.c -int VP8SetError(VP8Decoder* const dec, - VP8StatusCode error, const char* const msg); - -// in tree.c -void VP8ResetProba(VP8Proba* const proba); -void VP8ParseProba(VP8BitReader* const br, VP8Decoder* const dec); -// parses one row of intra mode data in partition 0, returns !eof -int VP8ParseIntraModeRow(VP8BitReader* const br, VP8Decoder* const dec); - -// in quant.c -void VP8ParseQuant(VP8Decoder* const dec); - -// in frame.c -int VP8InitFrame(VP8Decoder* const dec, VP8Io* const io); -// Call io->setup() and finish setting up scan parameters. -// After this call returns, one must always call VP8ExitCritical() with the -// same parameters. Both functions should be used in pair. Returns VP8_STATUS_OK -// if ok, otherwise sets and returns the error status on *dec. -VP8StatusCode VP8EnterCritical(VP8Decoder* const dec, VP8Io* const io); -// Must always be called in pair with VP8EnterCritical(). -// Returns false in case of error. -int VP8ExitCritical(VP8Decoder* const dec, VP8Io* const io); -// Return the multi-threading method to use (0=off), depending -// on options and bitstream size. Only for lossy decoding. -int VP8GetThreadMethod(const WebPDecoderOptions* const options, - const WebPHeaderStructure* const headers, - int width, int height); -// Initialize dithering post-process if needed. -void VP8InitDithering(const WebPDecoderOptions* const options, - VP8Decoder* const dec); -// Process the last decoded row (filtering + output). -int VP8ProcessRow(VP8Decoder* const dec, VP8Io* const io); -// To be called at the start of a new scanline, to initialize predictors. -void VP8InitScanline(VP8Decoder* const dec); -// Decode one macroblock. Returns false if there is not enough data. -int VP8DecodeMB(VP8Decoder* const dec, VP8BitReader* const token_br); - -// in alpha.c -const uint8_t* VP8DecompressAlphaRows(VP8Decoder* const dec, - const VP8Io* const io, - int row, int num_rows); - -//------------------------------------------------------------------------------ - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_DEC_VP8I_H_ */ diff --git a/drivers/webp/dec/vp8l.c b/drivers/webp/dec/vp8l.c deleted file mode 100644 index cb2e3176b6..0000000000 --- a/drivers/webp/dec/vp8l.c +++ /dev/null @@ -1,1660 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// main entry for the decoder -// -// Authors: Vikas Arora (vikaas.arora@gmail.com) -// Jyrki Alakuijala (jyrki@google.com) - -#include <stdlib.h> - -#include "./alphai.h" -#include "./vp8li.h" -#include "../dsp/dsp.h" -#include "../dsp/lossless.h" -#include "../dsp/yuv.h" -#include "../utils/endian_inl.h" -#include "../utils/huffman.h" -#include "../utils/utils.h" - -#define NUM_ARGB_CACHE_ROWS 16 - -static const int kCodeLengthLiterals = 16; -static const int kCodeLengthRepeatCode = 16; -static const int kCodeLengthExtraBits[3] = { 2, 3, 7 }; -static const int kCodeLengthRepeatOffsets[3] = { 3, 3, 11 }; - -// ----------------------------------------------------------------------------- -// Five Huffman codes are used at each meta code: -// 1. green + length prefix codes + color cache codes, -// 2. alpha, -// 3. red, -// 4. blue, and, -// 5. distance prefix codes. -typedef enum { - GREEN = 0, - RED = 1, - BLUE = 2, - ALPHA = 3, - DIST = 4 -} HuffIndex; - -static const uint16_t kAlphabetSize[HUFFMAN_CODES_PER_META_CODE] = { - NUM_LITERAL_CODES + NUM_LENGTH_CODES, - NUM_LITERAL_CODES, NUM_LITERAL_CODES, NUM_LITERAL_CODES, - NUM_DISTANCE_CODES -}; - -static const uint8_t kLiteralMap[HUFFMAN_CODES_PER_META_CODE] = { - 0, 1, 1, 1, 0 -}; - -#define NUM_CODE_LENGTH_CODES 19 -static const uint8_t kCodeLengthCodeOrder[NUM_CODE_LENGTH_CODES] = { - 17, 18, 0, 1, 2, 3, 4, 5, 16, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 -}; - -#define CODE_TO_PLANE_CODES 120 -static const uint8_t kCodeToPlane[CODE_TO_PLANE_CODES] = { - 0x18, 0x07, 0x17, 0x19, 0x28, 0x06, 0x27, 0x29, 0x16, 0x1a, - 0x26, 0x2a, 0x38, 0x05, 0x37, 0x39, 0x15, 0x1b, 0x36, 0x3a, - 0x25, 0x2b, 0x48, 0x04, 0x47, 0x49, 0x14, 0x1c, 0x35, 0x3b, - 0x46, 0x4a, 0x24, 0x2c, 0x58, 0x45, 0x4b, 0x34, 0x3c, 0x03, - 0x57, 0x59, 0x13, 0x1d, 0x56, 0x5a, 0x23, 0x2d, 0x44, 0x4c, - 0x55, 0x5b, 0x33, 0x3d, 0x68, 0x02, 0x67, 0x69, 0x12, 0x1e, - 0x66, 0x6a, 0x22, 0x2e, 0x54, 0x5c, 0x43, 0x4d, 0x65, 0x6b, - 0x32, 0x3e, 0x78, 0x01, 0x77, 0x79, 0x53, 0x5d, 0x11, 0x1f, - 0x64, 0x6c, 0x42, 0x4e, 0x76, 0x7a, 0x21, 0x2f, 0x75, 0x7b, - 0x31, 0x3f, 0x63, 0x6d, 0x52, 0x5e, 0x00, 0x74, 0x7c, 0x41, - 0x4f, 0x10, 0x20, 0x62, 0x6e, 0x30, 0x73, 0x7d, 0x51, 0x5f, - 0x40, 0x72, 0x7e, 0x61, 0x6f, 0x50, 0x71, 0x7f, 0x60, 0x70 -}; - -// Memory needed for lookup tables of one Huffman tree group. Red, blue, alpha -// and distance alphabets are constant (256 for red, blue and alpha, 40 for -// distance) and lookup table sizes for them in worst case are 630 and 410 -// respectively. Size of green alphabet depends on color cache size and is equal -// to 256 (green component values) + 24 (length prefix values) -// + color_cache_size (between 0 and 2048). -// All values computed for 8-bit first level lookup with Mark Adler's tool: -// http://www.hdfgroup.org/ftp/lib-external/zlib/zlib-1.2.5/examples/enough.c -#define FIXED_TABLE_SIZE (630 * 3 + 410) -static const int kTableSize[12] = { - FIXED_TABLE_SIZE + 654, - FIXED_TABLE_SIZE + 656, - FIXED_TABLE_SIZE + 658, - FIXED_TABLE_SIZE + 662, - FIXED_TABLE_SIZE + 670, - FIXED_TABLE_SIZE + 686, - FIXED_TABLE_SIZE + 718, - FIXED_TABLE_SIZE + 782, - FIXED_TABLE_SIZE + 912, - FIXED_TABLE_SIZE + 1168, - FIXED_TABLE_SIZE + 1680, - FIXED_TABLE_SIZE + 2704 -}; - -static int DecodeImageStream(int xsize, int ysize, - int is_level0, - VP8LDecoder* const dec, - uint32_t** const decoded_data); - -//------------------------------------------------------------------------------ - -int VP8LCheckSignature(const uint8_t* const data, size_t size) { - return (size >= VP8L_FRAME_HEADER_SIZE && - data[0] == VP8L_MAGIC_BYTE && - (data[4] >> 5) == 0); // version -} - -static int ReadImageInfo(VP8LBitReader* const br, - int* const width, int* const height, - int* const has_alpha) { - if (VP8LReadBits(br, 8) != VP8L_MAGIC_BYTE) return 0; - *width = VP8LReadBits(br, VP8L_IMAGE_SIZE_BITS) + 1; - *height = VP8LReadBits(br, VP8L_IMAGE_SIZE_BITS) + 1; - *has_alpha = VP8LReadBits(br, 1); - if (VP8LReadBits(br, VP8L_VERSION_BITS) != 0) return 0; - return !br->eos_; -} - -int VP8LGetInfo(const uint8_t* data, size_t data_size, - int* const width, int* const height, int* const has_alpha) { - if (data == NULL || data_size < VP8L_FRAME_HEADER_SIZE) { - return 0; // not enough data - } else if (!VP8LCheckSignature(data, data_size)) { - return 0; // bad signature - } else { - int w, h, a; - VP8LBitReader br; - VP8LInitBitReader(&br, data, data_size); - if (!ReadImageInfo(&br, &w, &h, &a)) { - return 0; - } - if (width != NULL) *width = w; - if (height != NULL) *height = h; - if (has_alpha != NULL) *has_alpha = a; - return 1; - } -} - -//------------------------------------------------------------------------------ - -static WEBP_INLINE int GetCopyDistance(int distance_symbol, - VP8LBitReader* const br) { - int extra_bits, offset; - if (distance_symbol < 4) { - return distance_symbol + 1; - } - extra_bits = (distance_symbol - 2) >> 1; - offset = (2 + (distance_symbol & 1)) << extra_bits; - return offset + VP8LReadBits(br, extra_bits) + 1; -} - -static WEBP_INLINE int GetCopyLength(int length_symbol, - VP8LBitReader* const br) { - // Length and distance prefixes are encoded the same way. - return GetCopyDistance(length_symbol, br); -} - -static WEBP_INLINE int PlaneCodeToDistance(int xsize, int plane_code) { - if (plane_code > CODE_TO_PLANE_CODES) { - return plane_code - CODE_TO_PLANE_CODES; - } else { - const int dist_code = kCodeToPlane[plane_code - 1]; - const int yoffset = dist_code >> 4; - const int xoffset = 8 - (dist_code & 0xf); - const int dist = yoffset * xsize + xoffset; - return (dist >= 1) ? dist : 1; // dist<1 can happen if xsize is very small - } -} - -//------------------------------------------------------------------------------ -// Decodes the next Huffman code from bit-stream. -// FillBitWindow(br) needs to be called at minimum every second call -// to ReadSymbol, in order to pre-fetch enough bits. -static WEBP_INLINE int ReadSymbol(const HuffmanCode* table, - VP8LBitReader* const br) { - int nbits; - uint32_t val = VP8LPrefetchBits(br); - table += val & HUFFMAN_TABLE_MASK; - nbits = table->bits - HUFFMAN_TABLE_BITS; - if (nbits > 0) { - VP8LSetBitPos(br, br->bit_pos_ + HUFFMAN_TABLE_BITS); - val = VP8LPrefetchBits(br); - table += table->value; - table += val & ((1 << nbits) - 1); - } - VP8LSetBitPos(br, br->bit_pos_ + table->bits); - return table->value; -} - -// Reads packed symbol depending on GREEN channel -#define BITS_SPECIAL_MARKER 0x100 // something large enough (and a bit-mask) -#define PACKED_NON_LITERAL_CODE 0 // must be < NUM_LITERAL_CODES -static WEBP_INLINE int ReadPackedSymbols(const HTreeGroup* group, - VP8LBitReader* const br, - uint32_t* const dst) { - const uint32_t val = VP8LPrefetchBits(br) & (HUFFMAN_PACKED_TABLE_SIZE - 1); - const HuffmanCode32 code = group->packed_table[val]; - assert(group->use_packed_table); - if (code.bits < BITS_SPECIAL_MARKER) { - VP8LSetBitPos(br, br->bit_pos_ + code.bits); - *dst = code.value; - return PACKED_NON_LITERAL_CODE; - } else { - VP8LSetBitPos(br, br->bit_pos_ + code.bits - BITS_SPECIAL_MARKER); - assert(code.value >= NUM_LITERAL_CODES); - return code.value; - } -} - -static int AccumulateHCode(HuffmanCode hcode, int shift, - HuffmanCode32* const huff) { - huff->bits += hcode.bits; - huff->value |= (uint32_t)hcode.value << shift; - assert(huff->bits <= HUFFMAN_TABLE_BITS); - return hcode.bits; -} - -static void BuildPackedTable(HTreeGroup* const htree_group) { - uint32_t code; - for (code = 0; code < HUFFMAN_PACKED_TABLE_SIZE; ++code) { - uint32_t bits = code; - HuffmanCode32* const huff = &htree_group->packed_table[bits]; - HuffmanCode hcode = htree_group->htrees[GREEN][bits]; - if (hcode.value >= NUM_LITERAL_CODES) { - huff->bits = hcode.bits + BITS_SPECIAL_MARKER; - huff->value = hcode.value; - } else { - huff->bits = 0; - huff->value = 0; - bits >>= AccumulateHCode(hcode, 8, huff); - bits >>= AccumulateHCode(htree_group->htrees[RED][bits], 16, huff); - bits >>= AccumulateHCode(htree_group->htrees[BLUE][bits], 0, huff); - bits >>= AccumulateHCode(htree_group->htrees[ALPHA][bits], 24, huff); - (void)bits; - } - } -} - -static int ReadHuffmanCodeLengths( - VP8LDecoder* const dec, const int* const code_length_code_lengths, - int num_symbols, int* const code_lengths) { - int ok = 0; - VP8LBitReader* const br = &dec->br_; - int symbol; - int max_symbol; - int prev_code_len = DEFAULT_CODE_LENGTH; - HuffmanCode table[1 << LENGTHS_TABLE_BITS]; - - if (!VP8LBuildHuffmanTable(table, LENGTHS_TABLE_BITS, - code_length_code_lengths, - NUM_CODE_LENGTH_CODES)) { - goto End; - } - - if (VP8LReadBits(br, 1)) { // use length - const int length_nbits = 2 + 2 * VP8LReadBits(br, 3); - max_symbol = 2 + VP8LReadBits(br, length_nbits); - if (max_symbol > num_symbols) { - goto End; - } - } else { - max_symbol = num_symbols; - } - - symbol = 0; - while (symbol < num_symbols) { - const HuffmanCode* p; - int code_len; - if (max_symbol-- == 0) break; - VP8LFillBitWindow(br); - p = &table[VP8LPrefetchBits(br) & LENGTHS_TABLE_MASK]; - VP8LSetBitPos(br, br->bit_pos_ + p->bits); - code_len = p->value; - if (code_len < kCodeLengthLiterals) { - code_lengths[symbol++] = code_len; - if (code_len != 0) prev_code_len = code_len; - } else { - const int use_prev = (code_len == kCodeLengthRepeatCode); - const int slot = code_len - kCodeLengthLiterals; - const int extra_bits = kCodeLengthExtraBits[slot]; - const int repeat_offset = kCodeLengthRepeatOffsets[slot]; - int repeat = VP8LReadBits(br, extra_bits) + repeat_offset; - if (symbol + repeat > num_symbols) { - goto End; - } else { - const int length = use_prev ? prev_code_len : 0; - while (repeat-- > 0) code_lengths[symbol++] = length; - } - } - } - ok = 1; - - End: - if (!ok) dec->status_ = VP8_STATUS_BITSTREAM_ERROR; - return ok; -} - -// 'code_lengths' is pre-allocated temporary buffer, used for creating Huffman -// tree. -static int ReadHuffmanCode(int alphabet_size, VP8LDecoder* const dec, - int* const code_lengths, HuffmanCode* const table) { - int ok = 0; - int size = 0; - VP8LBitReader* const br = &dec->br_; - const int simple_code = VP8LReadBits(br, 1); - - memset(code_lengths, 0, alphabet_size * sizeof(*code_lengths)); - - if (simple_code) { // Read symbols, codes & code lengths directly. - const int num_symbols = VP8LReadBits(br, 1) + 1; - const int first_symbol_len_code = VP8LReadBits(br, 1); - // The first code is either 1 bit or 8 bit code. - int symbol = VP8LReadBits(br, (first_symbol_len_code == 0) ? 1 : 8); - code_lengths[symbol] = 1; - // The second code (if present), is always 8 bit long. - if (num_symbols == 2) { - symbol = VP8LReadBits(br, 8); - code_lengths[symbol] = 1; - } - ok = 1; - } else { // Decode Huffman-coded code lengths. - int i; - int code_length_code_lengths[NUM_CODE_LENGTH_CODES] = { 0 }; - const int num_codes = VP8LReadBits(br, 4) + 4; - if (num_codes > NUM_CODE_LENGTH_CODES) { - dec->status_ = VP8_STATUS_BITSTREAM_ERROR; - return 0; - } - - for (i = 0; i < num_codes; ++i) { - code_length_code_lengths[kCodeLengthCodeOrder[i]] = VP8LReadBits(br, 3); - } - ok = ReadHuffmanCodeLengths(dec, code_length_code_lengths, alphabet_size, - code_lengths); - } - - ok = ok && !br->eos_; - if (ok) { - size = VP8LBuildHuffmanTable(table, HUFFMAN_TABLE_BITS, - code_lengths, alphabet_size); - } - if (!ok || size == 0) { - dec->status_ = VP8_STATUS_BITSTREAM_ERROR; - return 0; - } - return size; -} - -static int ReadHuffmanCodes(VP8LDecoder* const dec, int xsize, int ysize, - int color_cache_bits, int allow_recursion) { - int i, j; - VP8LBitReader* const br = &dec->br_; - VP8LMetadata* const hdr = &dec->hdr_; - uint32_t* huffman_image = NULL; - HTreeGroup* htree_groups = NULL; - HuffmanCode* huffman_tables = NULL; - HuffmanCode* next = NULL; - int num_htree_groups = 1; - int max_alphabet_size = 0; - int* code_lengths = NULL; - const int table_size = kTableSize[color_cache_bits]; - - if (allow_recursion && VP8LReadBits(br, 1)) { - // use meta Huffman codes. - const int huffman_precision = VP8LReadBits(br, 3) + 2; - const int huffman_xsize = VP8LSubSampleSize(xsize, huffman_precision); - const int huffman_ysize = VP8LSubSampleSize(ysize, huffman_precision); - const int huffman_pixs = huffman_xsize * huffman_ysize; - if (!DecodeImageStream(huffman_xsize, huffman_ysize, 0, dec, - &huffman_image)) { - goto Error; - } - hdr->huffman_subsample_bits_ = huffman_precision; - for (i = 0; i < huffman_pixs; ++i) { - // The huffman data is stored in red and green bytes. - const int group = (huffman_image[i] >> 8) & 0xffff; - huffman_image[i] = group; - if (group >= num_htree_groups) { - num_htree_groups = group + 1; - } - } - } - - if (br->eos_) goto Error; - - // Find maximum alphabet size for the htree group. - for (j = 0; j < HUFFMAN_CODES_PER_META_CODE; ++j) { - int alphabet_size = kAlphabetSize[j]; - if (j == 0 && color_cache_bits > 0) { - alphabet_size += 1 << color_cache_bits; - } - if (max_alphabet_size < alphabet_size) { - max_alphabet_size = alphabet_size; - } - } - - huffman_tables = (HuffmanCode*)WebPSafeMalloc(num_htree_groups * table_size, - sizeof(*huffman_tables)); - htree_groups = VP8LHtreeGroupsNew(num_htree_groups); - code_lengths = (int*)WebPSafeCalloc((uint64_t)max_alphabet_size, - sizeof(*code_lengths)); - - if (htree_groups == NULL || code_lengths == NULL || huffman_tables == NULL) { - dec->status_ = VP8_STATUS_OUT_OF_MEMORY; - goto Error; - } - - next = huffman_tables; - for (i = 0; i < num_htree_groups; ++i) { - HTreeGroup* const htree_group = &htree_groups[i]; - HuffmanCode** const htrees = htree_group->htrees; - int size; - int total_size = 0; - int is_trivial_literal = 1; - int max_bits = 0; - for (j = 0; j < HUFFMAN_CODES_PER_META_CODE; ++j) { - int alphabet_size = kAlphabetSize[j]; - htrees[j] = next; - if (j == 0 && color_cache_bits > 0) { - alphabet_size += 1 << color_cache_bits; - } - size = ReadHuffmanCode(alphabet_size, dec, code_lengths, next); - if (size == 0) { - goto Error; - } - if (is_trivial_literal && kLiteralMap[j] == 1) { - is_trivial_literal = (next->bits == 0); - } - total_size += next->bits; - next += size; - if (j <= ALPHA) { - int local_max_bits = code_lengths[0]; - int k; - for (k = 1; k < alphabet_size; ++k) { - if (code_lengths[k] > local_max_bits) { - local_max_bits = code_lengths[k]; - } - } - max_bits += local_max_bits; - } - } - htree_group->is_trivial_literal = is_trivial_literal; - htree_group->is_trivial_code = 0; - if (is_trivial_literal) { - const int red = htrees[RED][0].value; - const int blue = htrees[BLUE][0].value; - const int alpha = htrees[ALPHA][0].value; - htree_group->literal_arb = - ((uint32_t)alpha << 24) | (red << 16) | blue; - if (total_size == 0 && htrees[GREEN][0].value < NUM_LITERAL_CODES) { - htree_group->is_trivial_code = 1; - htree_group->literal_arb |= htrees[GREEN][0].value << 8; - } - } - htree_group->use_packed_table = !htree_group->is_trivial_code && - (max_bits < HUFFMAN_PACKED_BITS); - if (htree_group->use_packed_table) BuildPackedTable(htree_group); - } - WebPSafeFree(code_lengths); - - // All OK. Finalize pointers and return. - hdr->huffman_image_ = huffman_image; - hdr->num_htree_groups_ = num_htree_groups; - hdr->htree_groups_ = htree_groups; - hdr->huffman_tables_ = huffman_tables; - return 1; - - Error: - WebPSafeFree(code_lengths); - WebPSafeFree(huffman_image); - WebPSafeFree(huffman_tables); - VP8LHtreeGroupsFree(htree_groups); - return 0; -} - -//------------------------------------------------------------------------------ -// Scaling. - -static int AllocateAndInitRescaler(VP8LDecoder* const dec, VP8Io* const io) { - const int num_channels = 4; - const int in_width = io->mb_w; - const int out_width = io->scaled_width; - const int in_height = io->mb_h; - const int out_height = io->scaled_height; - const uint64_t work_size = 2 * num_channels * (uint64_t)out_width; - rescaler_t* work; // Rescaler work area. - const uint64_t scaled_data_size = (uint64_t)out_width; - uint32_t* scaled_data; // Temporary storage for scaled BGRA data. - const uint64_t memory_size = sizeof(*dec->rescaler) + - work_size * sizeof(*work) + - scaled_data_size * sizeof(*scaled_data); - uint8_t* memory = (uint8_t*)WebPSafeMalloc(memory_size, sizeof(*memory)); - if (memory == NULL) { - dec->status_ = VP8_STATUS_OUT_OF_MEMORY; - return 0; - } - assert(dec->rescaler_memory == NULL); - dec->rescaler_memory = memory; - - dec->rescaler = (WebPRescaler*)memory; - memory += sizeof(*dec->rescaler); - work = (rescaler_t*)memory; - memory += work_size * sizeof(*work); - scaled_data = (uint32_t*)memory; - - WebPRescalerInit(dec->rescaler, in_width, in_height, (uint8_t*)scaled_data, - out_width, out_height, 0, num_channels, work); - return 1; -} - -//------------------------------------------------------------------------------ -// Export to ARGB - -// We have special "export" function since we need to convert from BGRA -static int Export(WebPRescaler* const rescaler, WEBP_CSP_MODE colorspace, - int rgba_stride, uint8_t* const rgba) { - uint32_t* const src = (uint32_t*)rescaler->dst; - const int dst_width = rescaler->dst_width; - int num_lines_out = 0; - while (WebPRescalerHasPendingOutput(rescaler)) { - uint8_t* const dst = rgba + num_lines_out * rgba_stride; - WebPRescalerExportRow(rescaler); - WebPMultARGBRow(src, dst_width, 1); - VP8LConvertFromBGRA(src, dst_width, colorspace, dst); - ++num_lines_out; - } - return num_lines_out; -} - -// Emit scaled rows. -static int EmitRescaledRowsRGBA(const VP8LDecoder* const dec, - uint8_t* in, int in_stride, int mb_h, - uint8_t* const out, int out_stride) { - const WEBP_CSP_MODE colorspace = dec->output_->colorspace; - int num_lines_in = 0; - int num_lines_out = 0; - while (num_lines_in < mb_h) { - uint8_t* const row_in = in + num_lines_in * in_stride; - uint8_t* const row_out = out + num_lines_out * out_stride; - const int lines_left = mb_h - num_lines_in; - const int needed_lines = WebPRescaleNeededLines(dec->rescaler, lines_left); - assert(needed_lines > 0 && needed_lines <= lines_left); - WebPMultARGBRows(row_in, in_stride, - dec->rescaler->src_width, needed_lines, 0); - WebPRescalerImport(dec->rescaler, lines_left, row_in, in_stride); - num_lines_in += needed_lines; - num_lines_out += Export(dec->rescaler, colorspace, out_stride, row_out); - } - return num_lines_out; -} - -// Emit rows without any scaling. -static int EmitRows(WEBP_CSP_MODE colorspace, - const uint8_t* row_in, int in_stride, - int mb_w, int mb_h, - uint8_t* const out, int out_stride) { - int lines = mb_h; - uint8_t* row_out = out; - while (lines-- > 0) { - VP8LConvertFromBGRA((const uint32_t*)row_in, mb_w, colorspace, row_out); - row_in += in_stride; - row_out += out_stride; - } - return mb_h; // Num rows out == num rows in. -} - -//------------------------------------------------------------------------------ -// Export to YUVA - -static void ConvertToYUVA(const uint32_t* const src, int width, int y_pos, - const WebPDecBuffer* const output) { - const WebPYUVABuffer* const buf = &output->u.YUVA; - - // first, the luma plane - WebPConvertARGBToY(src, buf->y + y_pos * buf->y_stride, width); - - // then U/V planes - { - uint8_t* const u = buf->u + (y_pos >> 1) * buf->u_stride; - uint8_t* const v = buf->v + (y_pos >> 1) * buf->v_stride; - // even lines: store values - // odd lines: average with previous values - WebPConvertARGBToUV(src, u, v, width, !(y_pos & 1)); - } - // Lastly, store alpha if needed. - if (buf->a != NULL) { - uint8_t* const a = buf->a + y_pos * buf->a_stride; -#if defined(WORDS_BIGENDIAN) - WebPExtractAlpha((uint8_t*)src + 0, 0, width, 1, a, 0); -#else - WebPExtractAlpha((uint8_t*)src + 3, 0, width, 1, a, 0); -#endif - } -} - -static int ExportYUVA(const VP8LDecoder* const dec, int y_pos) { - WebPRescaler* const rescaler = dec->rescaler; - uint32_t* const src = (uint32_t*)rescaler->dst; - const int dst_width = rescaler->dst_width; - int num_lines_out = 0; - while (WebPRescalerHasPendingOutput(rescaler)) { - WebPRescalerExportRow(rescaler); - WebPMultARGBRow(src, dst_width, 1); - ConvertToYUVA(src, dst_width, y_pos, dec->output_); - ++y_pos; - ++num_lines_out; - } - return num_lines_out; -} - -static int EmitRescaledRowsYUVA(const VP8LDecoder* const dec, - uint8_t* in, int in_stride, int mb_h) { - int num_lines_in = 0; - int y_pos = dec->last_out_row_; - while (num_lines_in < mb_h) { - const int lines_left = mb_h - num_lines_in; - const int needed_lines = WebPRescaleNeededLines(dec->rescaler, lines_left); - WebPMultARGBRows(in, in_stride, dec->rescaler->src_width, needed_lines, 0); - WebPRescalerImport(dec->rescaler, lines_left, in, in_stride); - num_lines_in += needed_lines; - in += needed_lines * in_stride; - y_pos += ExportYUVA(dec, y_pos); - } - return y_pos; -} - -static int EmitRowsYUVA(const VP8LDecoder* const dec, - const uint8_t* in, int in_stride, - int mb_w, int num_rows) { - int y_pos = dec->last_out_row_; - while (num_rows-- > 0) { - ConvertToYUVA((const uint32_t*)in, mb_w, y_pos, dec->output_); - in += in_stride; - ++y_pos; - } - return y_pos; -} - -//------------------------------------------------------------------------------ -// Cropping. - -// Sets io->mb_y, io->mb_h & io->mb_w according to start row, end row and -// crop options. Also updates the input data pointer, so that it points to the -// start of the cropped window. Note that pixels are in ARGB format even if -// 'in_data' is uint8_t*. -// Returns true if the crop window is not empty. -static int SetCropWindow(VP8Io* const io, int y_start, int y_end, - uint8_t** const in_data, int pixel_stride) { - assert(y_start < y_end); - assert(io->crop_left < io->crop_right); - if (y_end > io->crop_bottom) { - y_end = io->crop_bottom; // make sure we don't overflow on last row. - } - if (y_start < io->crop_top) { - const int delta = io->crop_top - y_start; - y_start = io->crop_top; - *in_data += delta * pixel_stride; - } - if (y_start >= y_end) return 0; // Crop window is empty. - - *in_data += io->crop_left * sizeof(uint32_t); - - io->mb_y = y_start - io->crop_top; - io->mb_w = io->crop_right - io->crop_left; - io->mb_h = y_end - y_start; - return 1; // Non-empty crop window. -} - -//------------------------------------------------------------------------------ - -static WEBP_INLINE int GetMetaIndex( - const uint32_t* const image, int xsize, int bits, int x, int y) { - if (bits == 0) return 0; - return image[xsize * (y >> bits) + (x >> bits)]; -} - -static WEBP_INLINE HTreeGroup* GetHtreeGroupForPos(VP8LMetadata* const hdr, - int x, int y) { - const int meta_index = GetMetaIndex(hdr->huffman_image_, hdr->huffman_xsize_, - hdr->huffman_subsample_bits_, x, y); - assert(meta_index < hdr->num_htree_groups_); - return hdr->htree_groups_ + meta_index; -} - -//------------------------------------------------------------------------------ -// Main loop, with custom row-processing function - -typedef void (*ProcessRowsFunc)(VP8LDecoder* const dec, int row); - -static void ApplyInverseTransforms(VP8LDecoder* const dec, int num_rows, - const uint32_t* const rows) { - int n = dec->next_transform_; - const int cache_pixs = dec->width_ * num_rows; - const int start_row = dec->last_row_; - const int end_row = start_row + num_rows; - const uint32_t* rows_in = rows; - uint32_t* const rows_out = dec->argb_cache_; - - // Inverse transforms. - // TODO: most transforms only need to operate on the cropped region only. - memcpy(rows_out, rows_in, cache_pixs * sizeof(*rows_out)); - while (n-- > 0) { - VP8LTransform* const transform = &dec->transforms_[n]; - VP8LInverseTransform(transform, start_row, end_row, rows_in, rows_out); - rows_in = rows_out; - } -} - -// Processes (transforms, scales & color-converts) the rows decoded after the -// last call. -static void ProcessRows(VP8LDecoder* const dec, int row) { - const uint32_t* const rows = dec->pixels_ + dec->width_ * dec->last_row_; - const int num_rows = row - dec->last_row_; - - assert(row <= dec->io_->crop_bottom); - // We can't process more than NUM_ARGB_CACHE_ROWS at a time (that's the size - // of argb_cache_), but we currently don't need more than that. - assert(num_rows <= NUM_ARGB_CACHE_ROWS); - if (num_rows > 0) { // Emit output. - VP8Io* const io = dec->io_; - uint8_t* rows_data = (uint8_t*)dec->argb_cache_; - const int in_stride = io->width * sizeof(uint32_t); // in unit of RGBA - - ApplyInverseTransforms(dec, num_rows, rows); - if (!SetCropWindow(io, dec->last_row_, row, &rows_data, in_stride)) { - // Nothing to output (this time). - } else { - const WebPDecBuffer* const output = dec->output_; - if (WebPIsRGBMode(output->colorspace)) { // convert to RGBA - const WebPRGBABuffer* const buf = &output->u.RGBA; - uint8_t* const rgba = buf->rgba + dec->last_out_row_ * buf->stride; - const int num_rows_out = io->use_scaling ? - EmitRescaledRowsRGBA(dec, rows_data, in_stride, io->mb_h, - rgba, buf->stride) : - EmitRows(output->colorspace, rows_data, in_stride, - io->mb_w, io->mb_h, rgba, buf->stride); - // Update 'last_out_row_'. - dec->last_out_row_ += num_rows_out; - } else { // convert to YUVA - dec->last_out_row_ = io->use_scaling ? - EmitRescaledRowsYUVA(dec, rows_data, in_stride, io->mb_h) : - EmitRowsYUVA(dec, rows_data, in_stride, io->mb_w, io->mb_h); - } - assert(dec->last_out_row_ <= output->height); - } - } - - // Update 'last_row_'. - dec->last_row_ = row; - assert(dec->last_row_ <= dec->height_); -} - -// Row-processing for the special case when alpha data contains only one -// transform (color indexing), and trivial non-green literals. -static int Is8bOptimizable(const VP8LMetadata* const hdr) { - int i; - if (hdr->color_cache_size_ > 0) return 0; - // When the Huffman tree contains only one symbol, we can skip the - // call to ReadSymbol() for red/blue/alpha channels. - for (i = 0; i < hdr->num_htree_groups_; ++i) { - HuffmanCode** const htrees = hdr->htree_groups_[i].htrees; - if (htrees[RED][0].bits > 0) return 0; - if (htrees[BLUE][0].bits > 0) return 0; - if (htrees[ALPHA][0].bits > 0) return 0; - } - return 1; -} - -static void AlphaApplyFilter(ALPHDecoder* const alph_dec, - int first_row, int last_row, - uint8_t* out, int stride) { - if (alph_dec->filter_ != WEBP_FILTER_NONE) { - int y; - const uint8_t* prev_line = alph_dec->prev_line_; - assert(WebPUnfilters[alph_dec->filter_] != NULL); - for (y = first_row; y < last_row; ++y) { - WebPUnfilters[alph_dec->filter_](prev_line, out, out, stride); - prev_line = out; - out += stride; - } - alph_dec->prev_line_ = prev_line; - } -} - -static void ExtractPalettedAlphaRows(VP8LDecoder* const dec, int last_row) { - // For vertical and gradient filtering, we need to decode the part above the - // crop_top row, in order to have the correct spatial predictors. - ALPHDecoder* const alph_dec = (ALPHDecoder*)dec->io_->opaque; - const int top_row = - (alph_dec->filter_ == WEBP_FILTER_NONE || - alph_dec->filter_ == WEBP_FILTER_HORIZONTAL) ? dec->io_->crop_top - : dec->last_row_; - const int first_row = (dec->last_row_ < top_row) ? top_row : dec->last_row_; - assert(last_row <= dec->io_->crop_bottom); - if (last_row > first_row) { - // Special method for paletted alpha data. We only process the cropped area. - const int width = dec->io_->width; - uint8_t* out = alph_dec->output_ + width * first_row; - const uint8_t* const in = - (uint8_t*)dec->pixels_ + dec->width_ * first_row; - VP8LTransform* const transform = &dec->transforms_[0]; - assert(dec->next_transform_ == 1); - assert(transform->type_ == COLOR_INDEXING_TRANSFORM); - VP8LColorIndexInverseTransformAlpha(transform, first_row, last_row, - in, out); - AlphaApplyFilter(alph_dec, first_row, last_row, out, width); - } - dec->last_row_ = dec->last_out_row_ = last_row; -} - -//------------------------------------------------------------------------------ -// Helper functions for fast pattern copy (8b and 32b) - -// cyclic rotation of pattern word -static WEBP_INLINE uint32_t Rotate8b(uint32_t V) { -#if defined(WORDS_BIGENDIAN) - return ((V & 0xff000000u) >> 24) | (V << 8); -#else - return ((V & 0xffu) << 24) | (V >> 8); -#endif -} - -// copy 1, 2 or 4-bytes pattern -static WEBP_INLINE void CopySmallPattern8b(const uint8_t* src, uint8_t* dst, - int length, uint32_t pattern) { - int i; - // align 'dst' to 4-bytes boundary. Adjust the pattern along the way. - while ((uintptr_t)dst & 3) { - *dst++ = *src++; - pattern = Rotate8b(pattern); - --length; - } - // Copy the pattern 4 bytes at a time. - for (i = 0; i < (length >> 2); ++i) { - ((uint32_t*)dst)[i] = pattern; - } - // Finish with left-overs. 'pattern' is still correctly positioned, - // so no Rotate8b() call is needed. - for (i <<= 2; i < length; ++i) { - dst[i] = src[i]; - } -} - -static WEBP_INLINE void CopyBlock8b(uint8_t* const dst, int dist, int length) { - const uint8_t* src = dst - dist; - if (length >= 8) { - uint32_t pattern = 0; - switch (dist) { - case 1: - pattern = src[0]; -#if defined(__arm__) || defined(_M_ARM) // arm doesn't like multiply that much - pattern |= pattern << 8; - pattern |= pattern << 16; -#elif defined(WEBP_USE_MIPS_DSP_R2) - __asm__ volatile ("replv.qb %0, %0" : "+r"(pattern)); -#else - pattern = 0x01010101u * pattern; -#endif - break; - case 2: - memcpy(&pattern, src, sizeof(uint16_t)); -#if defined(__arm__) || defined(_M_ARM) - pattern |= pattern << 16; -#elif defined(WEBP_USE_MIPS_DSP_R2) - __asm__ volatile ("replv.ph %0, %0" : "+r"(pattern)); -#else - pattern = 0x00010001u * pattern; -#endif - break; - case 4: - memcpy(&pattern, src, sizeof(uint32_t)); - break; - default: - goto Copy; - break; - } - CopySmallPattern8b(src, dst, length, pattern); - return; - } - Copy: - if (dist >= length) { // no overlap -> use memcpy() - memcpy(dst, src, length * sizeof(*dst)); - } else { - int i; - for (i = 0; i < length; ++i) dst[i] = src[i]; - } -} - -// copy pattern of 1 or 2 uint32_t's -static WEBP_INLINE void CopySmallPattern32b(const uint32_t* src, - uint32_t* dst, - int length, uint64_t pattern) { - int i; - if ((uintptr_t)dst & 4) { // Align 'dst' to 8-bytes boundary. - *dst++ = *src++; - pattern = (pattern >> 32) | (pattern << 32); - --length; - } - assert(0 == ((uintptr_t)dst & 7)); - for (i = 0; i < (length >> 1); ++i) { - ((uint64_t*)dst)[i] = pattern; // Copy the pattern 8 bytes at a time. - } - if (length & 1) { // Finish with left-over. - dst[i << 1] = src[i << 1]; - } -} - -static WEBP_INLINE void CopyBlock32b(uint32_t* const dst, - int dist, int length) { - const uint32_t* const src = dst - dist; - if (dist <= 2 && length >= 4 && ((uintptr_t)dst & 3) == 0) { - uint64_t pattern; - if (dist == 1) { - pattern = (uint64_t)src[0]; - pattern |= pattern << 32; - } else { - memcpy(&pattern, src, sizeof(pattern)); - } - CopySmallPattern32b(src, dst, length, pattern); - } else if (dist >= length) { // no overlap - memcpy(dst, src, length * sizeof(*dst)); - } else { - int i; - for (i = 0; i < length; ++i) dst[i] = src[i]; - } -} - -//------------------------------------------------------------------------------ - -static int DecodeAlphaData(VP8LDecoder* const dec, uint8_t* const data, - int width, int height, int last_row) { - int ok = 1; - int row = dec->last_pixel_ / width; - int col = dec->last_pixel_ % width; - VP8LBitReader* const br = &dec->br_; - VP8LMetadata* const hdr = &dec->hdr_; - int pos = dec->last_pixel_; // current position - const int end = width * height; // End of data - const int last = width * last_row; // Last pixel to decode - const int len_code_limit = NUM_LITERAL_CODES + NUM_LENGTH_CODES; - const int mask = hdr->huffman_mask_; - const HTreeGroup* htree_group = - (pos < last) ? GetHtreeGroupForPos(hdr, col, row) : NULL; - assert(pos <= end); - assert(last_row <= height); - assert(Is8bOptimizable(hdr)); - - while (!br->eos_ && pos < last) { - int code; - // Only update when changing tile. - if ((col & mask) == 0) { - htree_group = GetHtreeGroupForPos(hdr, col, row); - } - assert(htree_group != NULL); - VP8LFillBitWindow(br); - code = ReadSymbol(htree_group->htrees[GREEN], br); - if (code < NUM_LITERAL_CODES) { // Literal - data[pos] = code; - ++pos; - ++col; - if (col >= width) { - col = 0; - ++row; - if (row <= last_row && (row % NUM_ARGB_CACHE_ROWS == 0)) { - ExtractPalettedAlphaRows(dec, row); - } - } - } else if (code < len_code_limit) { // Backward reference - int dist_code, dist; - const int length_sym = code - NUM_LITERAL_CODES; - const int length = GetCopyLength(length_sym, br); - const int dist_symbol = ReadSymbol(htree_group->htrees[DIST], br); - VP8LFillBitWindow(br); - dist_code = GetCopyDistance(dist_symbol, br); - dist = PlaneCodeToDistance(width, dist_code); - if (pos >= dist && end - pos >= length) { - CopyBlock8b(data + pos, dist, length); - } else { - ok = 0; - goto End; - } - pos += length; - col += length; - while (col >= width) { - col -= width; - ++row; - if (row <= last_row && (row % NUM_ARGB_CACHE_ROWS == 0)) { - ExtractPalettedAlphaRows(dec, row); - } - } - if (pos < last && (col & mask)) { - htree_group = GetHtreeGroupForPos(hdr, col, row); - } - } else { // Not reached - ok = 0; - goto End; - } - assert(br->eos_ == VP8LIsEndOfStream(br)); - } - // Process the remaining rows corresponding to last row-block. - ExtractPalettedAlphaRows(dec, row > last_row ? last_row : row); - - End: - if (!ok || (br->eos_ && pos < end)) { - ok = 0; - dec->status_ = br->eos_ ? VP8_STATUS_SUSPENDED - : VP8_STATUS_BITSTREAM_ERROR; - } else { - dec->last_pixel_ = pos; - } - return ok; -} - -static void SaveState(VP8LDecoder* const dec, int last_pixel) { - assert(dec->incremental_); - dec->saved_br_ = dec->br_; - dec->saved_last_pixel_ = last_pixel; - if (dec->hdr_.color_cache_size_ > 0) { - VP8LColorCacheCopy(&dec->hdr_.color_cache_, &dec->hdr_.saved_color_cache_); - } -} - -static void RestoreState(VP8LDecoder* const dec) { - assert(dec->br_.eos_); - dec->status_ = VP8_STATUS_SUSPENDED; - dec->br_ = dec->saved_br_; - dec->last_pixel_ = dec->saved_last_pixel_; - if (dec->hdr_.color_cache_size_ > 0) { - VP8LColorCacheCopy(&dec->hdr_.saved_color_cache_, &dec->hdr_.color_cache_); - } -} - -#define SYNC_EVERY_N_ROWS 8 // minimum number of rows between check-points -static int DecodeImageData(VP8LDecoder* const dec, uint32_t* const data, - int width, int height, int last_row, - ProcessRowsFunc process_func) { - int row = dec->last_pixel_ / width; - int col = dec->last_pixel_ % width; - VP8LBitReader* const br = &dec->br_; - VP8LMetadata* const hdr = &dec->hdr_; - uint32_t* src = data + dec->last_pixel_; - uint32_t* last_cached = src; - uint32_t* const src_end = data + width * height; // End of data - uint32_t* const src_last = data + width * last_row; // Last pixel to decode - const int len_code_limit = NUM_LITERAL_CODES + NUM_LENGTH_CODES; - const int color_cache_limit = len_code_limit + hdr->color_cache_size_; - int next_sync_row = dec->incremental_ ? row : 1 << 24; - VP8LColorCache* const color_cache = - (hdr->color_cache_size_ > 0) ? &hdr->color_cache_ : NULL; - const int mask = hdr->huffman_mask_; - const HTreeGroup* htree_group = - (src < src_last) ? GetHtreeGroupForPos(hdr, col, row) : NULL; - assert(dec->last_row_ < last_row); - assert(src_last <= src_end); - - while (src < src_last) { - int code; - if (row >= next_sync_row) { - SaveState(dec, (int)(src - data)); - next_sync_row = row + SYNC_EVERY_N_ROWS; - } - // Only update when changing tile. Note we could use this test: - // if "((((prev_col ^ col) | prev_row ^ row)) > mask)" -> tile changed - // but that's actually slower and needs storing the previous col/row. - if ((col & mask) == 0) { - htree_group = GetHtreeGroupForPos(hdr, col, row); - } - assert(htree_group != NULL); - if (htree_group->is_trivial_code) { - *src = htree_group->literal_arb; - goto AdvanceByOne; - } - VP8LFillBitWindow(br); - if (htree_group->use_packed_table) { - code = ReadPackedSymbols(htree_group, br, src); - if (code == PACKED_NON_LITERAL_CODE) goto AdvanceByOne; - } else { - code = ReadSymbol(htree_group->htrees[GREEN], br); - } - if (br->eos_) break; // early out - if (code < NUM_LITERAL_CODES) { // Literal - if (htree_group->is_trivial_literal) { - *src = htree_group->literal_arb | (code << 8); - } else { - int red, blue, alpha; - red = ReadSymbol(htree_group->htrees[RED], br); - VP8LFillBitWindow(br); - blue = ReadSymbol(htree_group->htrees[BLUE], br); - alpha = ReadSymbol(htree_group->htrees[ALPHA], br); - if (br->eos_) break; - *src = ((uint32_t)alpha << 24) | (red << 16) | (code << 8) | blue; - } - AdvanceByOne: - ++src; - ++col; - if (col >= width) { - col = 0; - ++row; - if (process_func != NULL) { - if (row <= last_row && (row % NUM_ARGB_CACHE_ROWS == 0)) { - process_func(dec, row); - } - } - if (color_cache != NULL) { - while (last_cached < src) { - VP8LColorCacheInsert(color_cache, *last_cached++); - } - } - } - } else if (code < len_code_limit) { // Backward reference - int dist_code, dist; - const int length_sym = code - NUM_LITERAL_CODES; - const int length = GetCopyLength(length_sym, br); - const int dist_symbol = ReadSymbol(htree_group->htrees[DIST], br); - VP8LFillBitWindow(br); - dist_code = GetCopyDistance(dist_symbol, br); - dist = PlaneCodeToDistance(width, dist_code); - if (br->eos_) break; - if (src - data < (ptrdiff_t)dist || src_end - src < (ptrdiff_t)length) { - goto Error; - } else { - CopyBlock32b(src, dist, length); - } - src += length; - col += length; - while (col >= width) { - col -= width; - ++row; - if (process_func != NULL) { - if (row <= last_row && (row % NUM_ARGB_CACHE_ROWS == 0)) { - process_func(dec, row); - } - } - } - // Because of the check done above (before 'src' was incremented by - // 'length'), the following holds true. - assert(src <= src_end); - if (col & mask) htree_group = GetHtreeGroupForPos(hdr, col, row); - if (color_cache != NULL) { - while (last_cached < src) { - VP8LColorCacheInsert(color_cache, *last_cached++); - } - } - } else if (code < color_cache_limit) { // Color cache - const int key = code - len_code_limit; - assert(color_cache != NULL); - while (last_cached < src) { - VP8LColorCacheInsert(color_cache, *last_cached++); - } - *src = VP8LColorCacheLookup(color_cache, key); - goto AdvanceByOne; - } else { // Not reached - goto Error; - } - assert(br->eos_ == VP8LIsEndOfStream(br)); - } - - if (dec->incremental_ && br->eos_ && src < src_end) { - RestoreState(dec); - } else if (!br->eos_) { - // Process the remaining rows corresponding to last row-block. - if (process_func != NULL) { - process_func(dec, row > last_row ? last_row : row); - } - dec->status_ = VP8_STATUS_OK; - dec->last_pixel_ = (int)(src - data); // end-of-scan marker - } else { - // if not incremental, and we are past the end of buffer (eos_=1), then this - // is a real bitstream error. - goto Error; - } - return 1; - - Error: - dec->status_ = VP8_STATUS_BITSTREAM_ERROR; - return 0; -} - -// ----------------------------------------------------------------------------- -// VP8LTransform - -static void ClearTransform(VP8LTransform* const transform) { - WebPSafeFree(transform->data_); - transform->data_ = NULL; -} - -// For security reason, we need to remap the color map to span -// the total possible bundled values, and not just the num_colors. -static int ExpandColorMap(int num_colors, VP8LTransform* const transform) { - int i; - const int final_num_colors = 1 << (8 >> transform->bits_); - uint32_t* const new_color_map = - (uint32_t*)WebPSafeMalloc((uint64_t)final_num_colors, - sizeof(*new_color_map)); - if (new_color_map == NULL) { - return 0; - } else { - uint8_t* const data = (uint8_t*)transform->data_; - uint8_t* const new_data = (uint8_t*)new_color_map; - new_color_map[0] = transform->data_[0]; - for (i = 4; i < 4 * num_colors; ++i) { - // Equivalent to AddPixelEq(), on a byte-basis. - new_data[i] = (data[i] + new_data[i - 4]) & 0xff; - } - for (; i < 4 * final_num_colors; ++i) - new_data[i] = 0; // black tail. - WebPSafeFree(transform->data_); - transform->data_ = new_color_map; - } - return 1; -} - -static int ReadTransform(int* const xsize, int const* ysize, - VP8LDecoder* const dec) { - int ok = 1; - VP8LBitReader* const br = &dec->br_; - VP8LTransform* transform = &dec->transforms_[dec->next_transform_]; - const VP8LImageTransformType type = - (VP8LImageTransformType)VP8LReadBits(br, 2); - - // Each transform type can only be present once in the stream. - if (dec->transforms_seen_ & (1U << type)) { - return 0; // Already there, let's not accept the second same transform. - } - dec->transforms_seen_ |= (1U << type); - - transform->type_ = type; - transform->xsize_ = *xsize; - transform->ysize_ = *ysize; - transform->data_ = NULL; - ++dec->next_transform_; - assert(dec->next_transform_ <= NUM_TRANSFORMS); - - switch (type) { - case PREDICTOR_TRANSFORM: - case CROSS_COLOR_TRANSFORM: - transform->bits_ = VP8LReadBits(br, 3) + 2; - ok = DecodeImageStream(VP8LSubSampleSize(transform->xsize_, - transform->bits_), - VP8LSubSampleSize(transform->ysize_, - transform->bits_), - 0, dec, &transform->data_); - break; - case COLOR_INDEXING_TRANSFORM: { - const int num_colors = VP8LReadBits(br, 8) + 1; - const int bits = (num_colors > 16) ? 0 - : (num_colors > 4) ? 1 - : (num_colors > 2) ? 2 - : 3; - *xsize = VP8LSubSampleSize(transform->xsize_, bits); - transform->bits_ = bits; - ok = DecodeImageStream(num_colors, 1, 0, dec, &transform->data_); - ok = ok && ExpandColorMap(num_colors, transform); - break; - } - case SUBTRACT_GREEN: - break; - default: - assert(0); // can't happen - break; - } - - return ok; -} - -// ----------------------------------------------------------------------------- -// VP8LMetadata - -static void InitMetadata(VP8LMetadata* const hdr) { - assert(hdr != NULL); - memset(hdr, 0, sizeof(*hdr)); -} - -static void ClearMetadata(VP8LMetadata* const hdr) { - assert(hdr != NULL); - - WebPSafeFree(hdr->huffman_image_); - WebPSafeFree(hdr->huffman_tables_); - VP8LHtreeGroupsFree(hdr->htree_groups_); - VP8LColorCacheClear(&hdr->color_cache_); - VP8LColorCacheClear(&hdr->saved_color_cache_); - InitMetadata(hdr); -} - -// ----------------------------------------------------------------------------- -// VP8LDecoder - -VP8LDecoder* VP8LNew(void) { - VP8LDecoder* const dec = (VP8LDecoder*)WebPSafeCalloc(1ULL, sizeof(*dec)); - if (dec == NULL) return NULL; - dec->status_ = VP8_STATUS_OK; - dec->state_ = READ_DIM; - - VP8LDspInit(); // Init critical function pointers. - - return dec; -} - -void VP8LClear(VP8LDecoder* const dec) { - int i; - if (dec == NULL) return; - ClearMetadata(&dec->hdr_); - - WebPSafeFree(dec->pixels_); - dec->pixels_ = NULL; - for (i = 0; i < dec->next_transform_; ++i) { - ClearTransform(&dec->transforms_[i]); - } - dec->next_transform_ = 0; - dec->transforms_seen_ = 0; - - WebPSafeFree(dec->rescaler_memory); - dec->rescaler_memory = NULL; - - dec->output_ = NULL; // leave no trace behind -} - -void VP8LDelete(VP8LDecoder* const dec) { - if (dec != NULL) { - VP8LClear(dec); - WebPSafeFree(dec); - } -} - -static void UpdateDecoder(VP8LDecoder* const dec, int width, int height) { - VP8LMetadata* const hdr = &dec->hdr_; - const int num_bits = hdr->huffman_subsample_bits_; - dec->width_ = width; - dec->height_ = height; - - hdr->huffman_xsize_ = VP8LSubSampleSize(width, num_bits); - hdr->huffman_mask_ = (num_bits == 0) ? ~0 : (1 << num_bits) - 1; -} - -static int DecodeImageStream(int xsize, int ysize, - int is_level0, - VP8LDecoder* const dec, - uint32_t** const decoded_data) { - int ok = 1; - int transform_xsize = xsize; - int transform_ysize = ysize; - VP8LBitReader* const br = &dec->br_; - VP8LMetadata* const hdr = &dec->hdr_; - uint32_t* data = NULL; - int color_cache_bits = 0; - - // Read the transforms (may recurse). - if (is_level0) { - while (ok && VP8LReadBits(br, 1)) { - ok = ReadTransform(&transform_xsize, &transform_ysize, dec); - } - } - - // Color cache - if (ok && VP8LReadBits(br, 1)) { - color_cache_bits = VP8LReadBits(br, 4); - ok = (color_cache_bits >= 1 && color_cache_bits <= MAX_CACHE_BITS); - if (!ok) { - dec->status_ = VP8_STATUS_BITSTREAM_ERROR; - goto End; - } - } - - // Read the Huffman codes (may recurse). - ok = ok && ReadHuffmanCodes(dec, transform_xsize, transform_ysize, - color_cache_bits, is_level0); - if (!ok) { - dec->status_ = VP8_STATUS_BITSTREAM_ERROR; - goto End; - } - - // Finish setting up the color-cache - if (color_cache_bits > 0) { - hdr->color_cache_size_ = 1 << color_cache_bits; - if (!VP8LColorCacheInit(&hdr->color_cache_, color_cache_bits)) { - dec->status_ = VP8_STATUS_OUT_OF_MEMORY; - ok = 0; - goto End; - } - } else { - hdr->color_cache_size_ = 0; - } - UpdateDecoder(dec, transform_xsize, transform_ysize); - - if (is_level0) { // level 0 complete - dec->state_ = READ_HDR; - goto End; - } - - { - const uint64_t total_size = (uint64_t)transform_xsize * transform_ysize; - data = (uint32_t*)WebPSafeMalloc(total_size, sizeof(*data)); - if (data == NULL) { - dec->status_ = VP8_STATUS_OUT_OF_MEMORY; - ok = 0; - goto End; - } - } - - // Use the Huffman trees to decode the LZ77 encoded data. - ok = DecodeImageData(dec, data, transform_xsize, transform_ysize, - transform_ysize, NULL); - ok = ok && !br->eos_; - - End: - if (!ok) { - WebPSafeFree(data); - ClearMetadata(hdr); - } else { - if (decoded_data != NULL) { - *decoded_data = data; - } else { - // We allocate image data in this function only for transforms. At level 0 - // (that is: not the transforms), we shouldn't have allocated anything. - assert(data == NULL); - assert(is_level0); - } - dec->last_pixel_ = 0; // Reset for future DECODE_DATA_FUNC() calls. - if (!is_level0) ClearMetadata(hdr); // Clean up temporary data behind. - } - return ok; -} - -//------------------------------------------------------------------------------ -// Allocate internal buffers dec->pixels_ and dec->argb_cache_. -static int AllocateInternalBuffers32b(VP8LDecoder* const dec, int final_width) { - const uint64_t num_pixels = (uint64_t)dec->width_ * dec->height_; - // Scratch buffer corresponding to top-prediction row for transforming the - // first row in the row-blocks. Not needed for paletted alpha. - const uint64_t cache_top_pixels = (uint16_t)final_width; - // Scratch buffer for temporary BGRA storage. Not needed for paletted alpha. - const uint64_t cache_pixels = (uint64_t)final_width * NUM_ARGB_CACHE_ROWS; - const uint64_t total_num_pixels = - num_pixels + cache_top_pixels + cache_pixels; - - assert(dec->width_ <= final_width); - dec->pixels_ = (uint32_t*)WebPSafeMalloc(total_num_pixels, sizeof(uint32_t)); - if (dec->pixels_ == NULL) { - dec->argb_cache_ = NULL; // for sanity check - dec->status_ = VP8_STATUS_OUT_OF_MEMORY; - return 0; - } - dec->argb_cache_ = dec->pixels_ + num_pixels + cache_top_pixels; - return 1; -} - -static int AllocateInternalBuffers8b(VP8LDecoder* const dec) { - const uint64_t total_num_pixels = (uint64_t)dec->width_ * dec->height_; - dec->argb_cache_ = NULL; // for sanity check - dec->pixels_ = (uint32_t*)WebPSafeMalloc(total_num_pixels, sizeof(uint8_t)); - if (dec->pixels_ == NULL) { - dec->status_ = VP8_STATUS_OUT_OF_MEMORY; - return 0; - } - return 1; -} - -//------------------------------------------------------------------------------ - -// Special row-processing that only stores the alpha data. -static void ExtractAlphaRows(VP8LDecoder* const dec, int last_row) { - int cur_row = dec->last_row_; - int num_rows = last_row - cur_row; - const uint32_t* in = dec->pixels_ + dec->width_ * cur_row; - - assert(last_row <= dec->io_->crop_bottom); - while (num_rows > 0) { - const int num_rows_to_process = - (num_rows > NUM_ARGB_CACHE_ROWS) ? NUM_ARGB_CACHE_ROWS : num_rows; - // Extract alpha (which is stored in the green plane). - ALPHDecoder* const alph_dec = (ALPHDecoder*)dec->io_->opaque; - uint8_t* const output = alph_dec->output_; - const int width = dec->io_->width; // the final width (!= dec->width_) - const int cache_pixs = width * num_rows_to_process; - uint8_t* const dst = output + width * cur_row; - const uint32_t* const src = dec->argb_cache_; - int i; - ApplyInverseTransforms(dec, num_rows_to_process, in); - for (i = 0; i < cache_pixs; ++i) dst[i] = (src[i] >> 8) & 0xff; - AlphaApplyFilter(alph_dec, - cur_row, cur_row + num_rows_to_process, dst, width); - num_rows -= num_rows_to_process; - in += num_rows_to_process * dec->width_; - cur_row += num_rows_to_process; - } - assert(cur_row == last_row); - dec->last_row_ = dec->last_out_row_ = last_row; -} - -int VP8LDecodeAlphaHeader(ALPHDecoder* const alph_dec, - const uint8_t* const data, size_t data_size) { - int ok = 0; - VP8LDecoder* dec = VP8LNew(); - - if (dec == NULL) return 0; - - assert(alph_dec != NULL); - alph_dec->vp8l_dec_ = dec; - - dec->width_ = alph_dec->width_; - dec->height_ = alph_dec->height_; - dec->io_ = &alph_dec->io_; - dec->io_->opaque = alph_dec; - dec->io_->width = alph_dec->width_; - dec->io_->height = alph_dec->height_; - - dec->status_ = VP8_STATUS_OK; - VP8LInitBitReader(&dec->br_, data, data_size); - - if (!DecodeImageStream(alph_dec->width_, alph_dec->height_, 1, dec, NULL)) { - goto Err; - } - - // Special case: if alpha data uses only the color indexing transform and - // doesn't use color cache (a frequent case), we will use DecodeAlphaData() - // method that only needs allocation of 1 byte per pixel (alpha channel). - if (dec->next_transform_ == 1 && - dec->transforms_[0].type_ == COLOR_INDEXING_TRANSFORM && - Is8bOptimizable(&dec->hdr_)) { - alph_dec->use_8b_decode_ = 1; - ok = AllocateInternalBuffers8b(dec); - } else { - // Allocate internal buffers (note that dec->width_ may have changed here). - alph_dec->use_8b_decode_ = 0; - ok = AllocateInternalBuffers32b(dec, alph_dec->width_); - } - - if (!ok) goto Err; - - return 1; - - Err: - VP8LDelete(alph_dec->vp8l_dec_); - alph_dec->vp8l_dec_ = NULL; - return 0; -} - -int VP8LDecodeAlphaImageStream(ALPHDecoder* const alph_dec, int last_row) { - VP8LDecoder* const dec = alph_dec->vp8l_dec_; - assert(dec != NULL); - assert(last_row <= dec->height_); - - if (dec->last_row_ >= last_row) { - return 1; // done - } - - // Decode (with special row processing). - return alph_dec->use_8b_decode_ ? - DecodeAlphaData(dec, (uint8_t*)dec->pixels_, dec->width_, dec->height_, - last_row) : - DecodeImageData(dec, dec->pixels_, dec->width_, dec->height_, - last_row, ExtractAlphaRows); -} - -//------------------------------------------------------------------------------ - -int VP8LDecodeHeader(VP8LDecoder* const dec, VP8Io* const io) { - int width, height, has_alpha; - - if (dec == NULL) return 0; - if (io == NULL) { - dec->status_ = VP8_STATUS_INVALID_PARAM; - return 0; - } - - dec->io_ = io; - dec->status_ = VP8_STATUS_OK; - VP8LInitBitReader(&dec->br_, io->data, io->data_size); - if (!ReadImageInfo(&dec->br_, &width, &height, &has_alpha)) { - dec->status_ = VP8_STATUS_BITSTREAM_ERROR; - goto Error; - } - dec->state_ = READ_DIM; - io->width = width; - io->height = height; - - if (!DecodeImageStream(width, height, 1, dec, NULL)) goto Error; - return 1; - - Error: - VP8LClear(dec); - assert(dec->status_ != VP8_STATUS_OK); - return 0; -} - -int VP8LDecodeImage(VP8LDecoder* const dec) { - VP8Io* io = NULL; - WebPDecParams* params = NULL; - - // Sanity checks. - if (dec == NULL) return 0; - - assert(dec->hdr_.huffman_tables_ != NULL); - assert(dec->hdr_.htree_groups_ != NULL); - assert(dec->hdr_.num_htree_groups_ > 0); - - io = dec->io_; - assert(io != NULL); - params = (WebPDecParams*)io->opaque; - assert(params != NULL); - - // Initialization. - if (dec->state_ != READ_DATA) { - dec->output_ = params->output; - assert(dec->output_ != NULL); - - if (!WebPIoInitFromOptions(params->options, io, MODE_BGRA)) { - dec->status_ = VP8_STATUS_INVALID_PARAM; - goto Err; - } - - if (!AllocateInternalBuffers32b(dec, io->width)) goto Err; - - if (io->use_scaling && !AllocateAndInitRescaler(dec, io)) goto Err; - - if (io->use_scaling || WebPIsPremultipliedMode(dec->output_->colorspace)) { - // need the alpha-multiply functions for premultiplied output or rescaling - WebPInitAlphaProcessing(); - } - if (!WebPIsRGBMode(dec->output_->colorspace)) { - WebPInitConvertARGBToYUV(); - if (dec->output_->u.YUVA.a != NULL) WebPInitAlphaProcessing(); - } - if (dec->incremental_) { - if (dec->hdr_.color_cache_size_ > 0 && - dec->hdr_.saved_color_cache_.colors_ == NULL) { - if (!VP8LColorCacheInit(&dec->hdr_.saved_color_cache_, - dec->hdr_.color_cache_.hash_bits_)) { - dec->status_ = VP8_STATUS_OUT_OF_MEMORY; - goto Err; - } - } - } - dec->state_ = READ_DATA; - } - - // Decode. - if (!DecodeImageData(dec, dec->pixels_, dec->width_, dec->height_, - io->crop_bottom, ProcessRows)) { - goto Err; - } - - params->last_y = dec->last_out_row_; - return 1; - - Err: - VP8LClear(dec); - assert(dec->status_ != VP8_STATUS_OK); - return 0; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/dec/vp8li.h b/drivers/webp/dec/vp8li.h deleted file mode 100644 index 9313bdc0af..0000000000 --- a/drivers/webp/dec/vp8li.h +++ /dev/null @@ -1,135 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Lossless decoder: internal header. -// -// Author: Skal (pascal.massimino@gmail.com) -// Vikas Arora(vikaas.arora@gmail.com) - -#ifndef WEBP_DEC_VP8LI_H_ -#define WEBP_DEC_VP8LI_H_ - -#include <string.h> // for memcpy() -#include "./webpi.h" -#include "../utils/bit_reader.h" -#include "../utils/color_cache.h" -#include "../utils/huffman.h" - -#ifdef __cplusplus -extern "C" { -#endif - -typedef enum { - READ_DATA = 0, - READ_HDR = 1, - READ_DIM = 2 -} VP8LDecodeState; - -typedef struct VP8LTransform VP8LTransform; -struct VP8LTransform { - VP8LImageTransformType type_; // transform type. - int bits_; // subsampling bits defining transform window. - int xsize_; // transform window X index. - int ysize_; // transform window Y index. - uint32_t *data_; // transform data. -}; - -typedef struct { - int color_cache_size_; - VP8LColorCache color_cache_; - VP8LColorCache saved_color_cache_; // for incremental - - int huffman_mask_; - int huffman_subsample_bits_; - int huffman_xsize_; - uint32_t *huffman_image_; - int num_htree_groups_; - HTreeGroup *htree_groups_; - HuffmanCode *huffman_tables_; -} VP8LMetadata; - -typedef struct VP8LDecoder VP8LDecoder; -struct VP8LDecoder { - VP8StatusCode status_; - VP8LDecodeState state_; - VP8Io *io_; - - const WebPDecBuffer *output_; // shortcut to io->opaque->output - - uint32_t *pixels_; // Internal data: either uint8_t* for alpha - // or uint32_t* for BGRA. - uint32_t *argb_cache_; // Scratch buffer for temporary BGRA storage. - - VP8LBitReader br_; - int incremental_; // if true, incremental decoding is expected - VP8LBitReader saved_br_; // note: could be local variables too - int saved_last_pixel_; - - int width_; - int height_; - int last_row_; // last input row decoded so far. - int last_pixel_; // last pixel decoded so far. However, it may - // not be transformed, scaled and - // color-converted yet. - int last_out_row_; // last row output so far. - - VP8LMetadata hdr_; - - int next_transform_; - VP8LTransform transforms_[NUM_TRANSFORMS]; - // or'd bitset storing the transforms types. - uint32_t transforms_seen_; - - uint8_t *rescaler_memory; // Working memory for rescaling work. - WebPRescaler *rescaler; // Common rescaler for all channels. -}; - -//------------------------------------------------------------------------------ -// internal functions. Not public. - -struct ALPHDecoder; // Defined in dec/alphai.h. - -// in vp8l.c - -// Decodes image header for alpha data stored using lossless compression. -// Returns false in case of error. -int VP8LDecodeAlphaHeader(struct ALPHDecoder* const alph_dec, - const uint8_t* const data, size_t data_size); - -// Decodes *at least* 'last_row' rows of alpha. If some of the initial rows are -// already decoded in previous call(s), it will resume decoding from where it -// was paused. -// Returns false in case of bitstream error. -int VP8LDecodeAlphaImageStream(struct ALPHDecoder* const alph_dec, - int last_row); - -// Allocates and initialize a new lossless decoder instance. -VP8LDecoder* VP8LNew(void); - -// Decodes the image header. Returns false in case of error. -int VP8LDecodeHeader(VP8LDecoder* const dec, VP8Io* const io); - -// Decodes an image. It's required to decode the lossless header before calling -// this function. Returns false in case of error, with updated dec->status_. -int VP8LDecodeImage(VP8LDecoder* const dec); - -// Resets the decoder in its initial state, reclaiming memory. -// Preserves the dec->status_ value. -void VP8LClear(VP8LDecoder* const dec); - -// Clears and deallocate a lossless decoder instance. -void VP8LDelete(VP8LDecoder* const dec); - -//------------------------------------------------------------------------------ - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_DEC_VP8LI_H_ */ diff --git a/drivers/webp/dec/webp.c b/drivers/webp/dec/webp.c deleted file mode 100644 index dd6c090f00..0000000000 --- a/drivers/webp/dec/webp.c +++ /dev/null @@ -1,846 +0,0 @@ -// Copyright 2010 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Main decoding functions for WEBP images. -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <stdlib.h> - -#include "./vp8i.h" -#include "./vp8li.h" -#include "./webpi.h" -#include "../utils/utils.h" -#include "webp/mux_types.h" // ALPHA_FLAG - -//------------------------------------------------------------------------------ -// RIFF layout is: -// Offset tag -// 0...3 "RIFF" 4-byte tag -// 4...7 size of image data (including metadata) starting at offset 8 -// 8...11 "WEBP" our form-type signature -// The RIFF container (12 bytes) is followed by appropriate chunks: -// 12..15 "VP8 ": 4-bytes tags, signaling the use of VP8 video format -// 16..19 size of the raw VP8 image data, starting at offset 20 -// 20.... the VP8 bytes -// Or, -// 12..15 "VP8L": 4-bytes tags, signaling the use of VP8L lossless format -// 16..19 size of the raw VP8L image data, starting at offset 20 -// 20.... the VP8L bytes -// Or, -// 12..15 "VP8X": 4-bytes tags, describing the extended-VP8 chunk. -// 16..19 size of the VP8X chunk starting at offset 20. -// 20..23 VP8X flags bit-map corresponding to the chunk-types present. -// 24..26 Width of the Canvas Image. -// 27..29 Height of the Canvas Image. -// There can be extra chunks after the "VP8X" chunk (ICCP, FRGM, ANMF, VP8, -// VP8L, XMP, EXIF ...) -// All sizes are in little-endian order. -// Note: chunk data size must be padded to multiple of 2 when written. - -// Validates the RIFF container (if detected) and skips over it. -// If a RIFF container is detected, returns: -// VP8_STATUS_BITSTREAM_ERROR for invalid header, -// VP8_STATUS_NOT_ENOUGH_DATA for truncated data if have_all_data is true, -// and VP8_STATUS_OK otherwise. -// In case there are not enough bytes (partial RIFF container), return 0 for -// *riff_size. Else return the RIFF size extracted from the header. -static VP8StatusCode ParseRIFF(const uint8_t** const data, - size_t* const data_size, int have_all_data, - size_t* const riff_size) { - assert(data != NULL); - assert(data_size != NULL); - assert(riff_size != NULL); - - *riff_size = 0; // Default: no RIFF present. - if (*data_size >= RIFF_HEADER_SIZE && !memcmp(*data, "RIFF", TAG_SIZE)) { - if (memcmp(*data + 8, "WEBP", TAG_SIZE)) { - return VP8_STATUS_BITSTREAM_ERROR; // Wrong image file signature. - } else { - const uint32_t size = GetLE32(*data + TAG_SIZE); - // Check that we have at least one chunk (i.e "WEBP" + "VP8?nnnn"). - if (size < TAG_SIZE + CHUNK_HEADER_SIZE) { - return VP8_STATUS_BITSTREAM_ERROR; - } - if (size > MAX_CHUNK_PAYLOAD) { - return VP8_STATUS_BITSTREAM_ERROR; - } - if (have_all_data && (size > *data_size - CHUNK_HEADER_SIZE)) { - return VP8_STATUS_NOT_ENOUGH_DATA; // Truncated bitstream. - } - // We have a RIFF container. Skip it. - *riff_size = size; - *data += RIFF_HEADER_SIZE; - *data_size -= RIFF_HEADER_SIZE; - } - } - return VP8_STATUS_OK; -} - -// Validates the VP8X header and skips over it. -// Returns VP8_STATUS_BITSTREAM_ERROR for invalid VP8X header, -// VP8_STATUS_NOT_ENOUGH_DATA in case of insufficient data, and -// VP8_STATUS_OK otherwise. -// If a VP8X chunk is found, found_vp8x is set to true and *width_ptr, -// *height_ptr and *flags_ptr are set to the corresponding values extracted -// from the VP8X chunk. -static VP8StatusCode ParseVP8X(const uint8_t** const data, - size_t* const data_size, - int* const found_vp8x, - int* const width_ptr, int* const height_ptr, - uint32_t* const flags_ptr) { - const uint32_t vp8x_size = CHUNK_HEADER_SIZE + VP8X_CHUNK_SIZE; - assert(data != NULL); - assert(data_size != NULL); - assert(found_vp8x != NULL); - - *found_vp8x = 0; - - if (*data_size < CHUNK_HEADER_SIZE) { - return VP8_STATUS_NOT_ENOUGH_DATA; // Insufficient data. - } - - if (!memcmp(*data, "VP8X", TAG_SIZE)) { - int width, height; - uint32_t flags; - const uint32_t chunk_size = GetLE32(*data + TAG_SIZE); - if (chunk_size != VP8X_CHUNK_SIZE) { - return VP8_STATUS_BITSTREAM_ERROR; // Wrong chunk size. - } - - // Verify if enough data is available to validate the VP8X chunk. - if (*data_size < vp8x_size) { - return VP8_STATUS_NOT_ENOUGH_DATA; // Insufficient data. - } - flags = GetLE32(*data + 8); - width = 1 + GetLE24(*data + 12); - height = 1 + GetLE24(*data + 15); - if (width * (uint64_t)height >= MAX_IMAGE_AREA) { - return VP8_STATUS_BITSTREAM_ERROR; // image is too large - } - - if (flags_ptr != NULL) *flags_ptr = flags; - if (width_ptr != NULL) *width_ptr = width; - if (height_ptr != NULL) *height_ptr = height; - // Skip over VP8X header bytes. - *data += vp8x_size; - *data_size -= vp8x_size; - *found_vp8x = 1; - } - return VP8_STATUS_OK; -} - -// Skips to the next VP8/VP8L chunk header in the data given the size of the -// RIFF chunk 'riff_size'. -// Returns VP8_STATUS_BITSTREAM_ERROR if any invalid chunk size is encountered, -// VP8_STATUS_NOT_ENOUGH_DATA in case of insufficient data, and -// VP8_STATUS_OK otherwise. -// If an alpha chunk is found, *alpha_data and *alpha_size are set -// appropriately. -static VP8StatusCode ParseOptionalChunks(const uint8_t** const data, - size_t* const data_size, - size_t const riff_size, - const uint8_t** const alpha_data, - size_t* const alpha_size) { - const uint8_t* buf; - size_t buf_size; - uint32_t total_size = TAG_SIZE + // "WEBP". - CHUNK_HEADER_SIZE + // "VP8Xnnnn". - VP8X_CHUNK_SIZE; // data. - assert(data != NULL); - assert(data_size != NULL); - buf = *data; - buf_size = *data_size; - - assert(alpha_data != NULL); - assert(alpha_size != NULL); - *alpha_data = NULL; - *alpha_size = 0; - - while (1) { - uint32_t chunk_size; - uint32_t disk_chunk_size; // chunk_size with padding - - *data = buf; - *data_size = buf_size; - - if (buf_size < CHUNK_HEADER_SIZE) { // Insufficient data. - return VP8_STATUS_NOT_ENOUGH_DATA; - } - - chunk_size = GetLE32(buf + TAG_SIZE); - if (chunk_size > MAX_CHUNK_PAYLOAD) { - return VP8_STATUS_BITSTREAM_ERROR; // Not a valid chunk size. - } - // For odd-sized chunk-payload, there's one byte padding at the end. - disk_chunk_size = (CHUNK_HEADER_SIZE + chunk_size + 1) & ~1; - total_size += disk_chunk_size; - - // Check that total bytes skipped so far does not exceed riff_size. - if (riff_size > 0 && (total_size > riff_size)) { - return VP8_STATUS_BITSTREAM_ERROR; // Not a valid chunk size. - } - - // Start of a (possibly incomplete) VP8/VP8L chunk implies that we have - // parsed all the optional chunks. - // Note: This check must occur before the check 'buf_size < disk_chunk_size' - // below to allow incomplete VP8/VP8L chunks. - if (!memcmp(buf, "VP8 ", TAG_SIZE) || - !memcmp(buf, "VP8L", TAG_SIZE)) { - return VP8_STATUS_OK; - } - - if (buf_size < disk_chunk_size) { // Insufficient data. - return VP8_STATUS_NOT_ENOUGH_DATA; - } - - if (!memcmp(buf, "ALPH", TAG_SIZE)) { // A valid ALPH header. - *alpha_data = buf + CHUNK_HEADER_SIZE; - *alpha_size = chunk_size; - } - - // We have a full and valid chunk; skip it. - buf += disk_chunk_size; - buf_size -= disk_chunk_size; - } -} - -// Validates the VP8/VP8L Header ("VP8 nnnn" or "VP8L nnnn") and skips over it. -// Returns VP8_STATUS_BITSTREAM_ERROR for invalid (chunk larger than -// riff_size) VP8/VP8L header, -// VP8_STATUS_NOT_ENOUGH_DATA in case of insufficient data, and -// VP8_STATUS_OK otherwise. -// If a VP8/VP8L chunk is found, *chunk_size is set to the total number of bytes -// extracted from the VP8/VP8L chunk header. -// The flag '*is_lossless' is set to 1 in case of VP8L chunk / raw VP8L data. -static VP8StatusCode ParseVP8Header(const uint8_t** const data_ptr, - size_t* const data_size, int have_all_data, - size_t riff_size, size_t* const chunk_size, - int* const is_lossless) { - const uint8_t* const data = *data_ptr; - const int is_vp8 = !memcmp(data, "VP8 ", TAG_SIZE); - const int is_vp8l = !memcmp(data, "VP8L", TAG_SIZE); - const uint32_t minimal_size = - TAG_SIZE + CHUNK_HEADER_SIZE; // "WEBP" + "VP8 nnnn" OR - // "WEBP" + "VP8Lnnnn" - assert(data != NULL); - assert(data_size != NULL); - assert(chunk_size != NULL); - assert(is_lossless != NULL); - - if (*data_size < CHUNK_HEADER_SIZE) { - return VP8_STATUS_NOT_ENOUGH_DATA; // Insufficient data. - } - - if (is_vp8 || is_vp8l) { - // Bitstream contains VP8/VP8L header. - const uint32_t size = GetLE32(data + TAG_SIZE); - if ((riff_size >= minimal_size) && (size > riff_size - minimal_size)) { - return VP8_STATUS_BITSTREAM_ERROR; // Inconsistent size information. - } - if (have_all_data && (size > *data_size - CHUNK_HEADER_SIZE)) { - return VP8_STATUS_NOT_ENOUGH_DATA; // Truncated bitstream. - } - // Skip over CHUNK_HEADER_SIZE bytes from VP8/VP8L Header. - *chunk_size = size; - *data_ptr += CHUNK_HEADER_SIZE; - *data_size -= CHUNK_HEADER_SIZE; - *is_lossless = is_vp8l; - } else { - // Raw VP8/VP8L bitstream (no header). - *is_lossless = VP8LCheckSignature(data, *data_size); - *chunk_size = *data_size; - } - - return VP8_STATUS_OK; -} - -//------------------------------------------------------------------------------ - -// Fetch '*width', '*height', '*has_alpha' and fill out 'headers' based on -// 'data'. All the output parameters may be NULL. If 'headers' is NULL only the -// minimal amount will be read to fetch the remaining parameters. -// If 'headers' is non-NULL this function will attempt to locate both alpha -// data (with or without a VP8X chunk) and the bitstream chunk (VP8/VP8L). -// Note: The following chunk sequences (before the raw VP8/VP8L data) are -// considered valid by this function: -// RIFF + VP8(L) -// RIFF + VP8X + (optional chunks) + VP8(L) -// ALPH + VP8 <-- Not a valid WebP format: only allowed for internal purpose. -// VP8(L) <-- Not a valid WebP format: only allowed for internal purpose. -static VP8StatusCode ParseHeadersInternal(const uint8_t* data, - size_t data_size, - int* const width, - int* const height, - int* const has_alpha, - int* const has_animation, - int* const format, - WebPHeaderStructure* const headers) { - int canvas_width = 0; - int canvas_height = 0; - int image_width = 0; - int image_height = 0; - int found_riff = 0; - int found_vp8x = 0; - int animation_present = 0; - int fragments_present = 0; - const int have_all_data = (headers != NULL) ? headers->have_all_data : 0; - - VP8StatusCode status; - WebPHeaderStructure hdrs; - - if (data == NULL || data_size < RIFF_HEADER_SIZE) { - return VP8_STATUS_NOT_ENOUGH_DATA; - } - memset(&hdrs, 0, sizeof(hdrs)); - hdrs.data = data; - hdrs.data_size = data_size; - - // Skip over RIFF header. - status = ParseRIFF(&data, &data_size, have_all_data, &hdrs.riff_size); - if (status != VP8_STATUS_OK) { - return status; // Wrong RIFF header / insufficient data. - } - found_riff = (hdrs.riff_size > 0); - - // Skip over VP8X. - { - uint32_t flags = 0; - status = ParseVP8X(&data, &data_size, &found_vp8x, - &canvas_width, &canvas_height, &flags); - if (status != VP8_STATUS_OK) { - return status; // Wrong VP8X / insufficient data. - } - animation_present = !!(flags & ANIMATION_FLAG); - fragments_present = !!(flags & FRAGMENTS_FLAG); - if (!found_riff && found_vp8x) { - // Note: This restriction may be removed in the future, if it becomes - // necessary to send VP8X chunk to the decoder. - return VP8_STATUS_BITSTREAM_ERROR; - } - if (has_alpha != NULL) *has_alpha = !!(flags & ALPHA_FLAG); - if (has_animation != NULL) *has_animation = animation_present; - if (format != NULL) *format = 0; // default = undefined - - image_width = canvas_width; - image_height = canvas_height; - if (found_vp8x && (animation_present || fragments_present) && - headers == NULL) { - status = VP8_STATUS_OK; - goto ReturnWidthHeight; // Just return features from VP8X header. - } - } - - if (data_size < TAG_SIZE) { - status = VP8_STATUS_NOT_ENOUGH_DATA; - goto ReturnWidthHeight; - } - - // Skip over optional chunks if data started with "RIFF + VP8X" or "ALPH". - if ((found_riff && found_vp8x) || - (!found_riff && !found_vp8x && !memcmp(data, "ALPH", TAG_SIZE))) { - status = ParseOptionalChunks(&data, &data_size, hdrs.riff_size, - &hdrs.alpha_data, &hdrs.alpha_data_size); - if (status != VP8_STATUS_OK) { - goto ReturnWidthHeight; // Invalid chunk size / insufficient data. - } - } - - // Skip over VP8/VP8L header. - status = ParseVP8Header(&data, &data_size, have_all_data, hdrs.riff_size, - &hdrs.compressed_size, &hdrs.is_lossless); - if (status != VP8_STATUS_OK) { - goto ReturnWidthHeight; // Wrong VP8/VP8L chunk-header / insufficient data. - } - if (hdrs.compressed_size > MAX_CHUNK_PAYLOAD) { - return VP8_STATUS_BITSTREAM_ERROR; - } - - if (format != NULL && !(animation_present || fragments_present)) { - *format = hdrs.is_lossless ? 2 : 1; - } - - if (!hdrs.is_lossless) { - if (data_size < VP8_FRAME_HEADER_SIZE) { - status = VP8_STATUS_NOT_ENOUGH_DATA; - goto ReturnWidthHeight; - } - // Validates raw VP8 data. - if (!VP8GetInfo(data, data_size, (uint32_t)hdrs.compressed_size, - &image_width, &image_height)) { - return VP8_STATUS_BITSTREAM_ERROR; - } - } else { - if (data_size < VP8L_FRAME_HEADER_SIZE) { - status = VP8_STATUS_NOT_ENOUGH_DATA; - goto ReturnWidthHeight; - } - // Validates raw VP8L data. - if (!VP8LGetInfo(data, data_size, &image_width, &image_height, has_alpha)) { - return VP8_STATUS_BITSTREAM_ERROR; - } - } - // Validates image size coherency. - if (found_vp8x) { - if (canvas_width != image_width || canvas_height != image_height) { - return VP8_STATUS_BITSTREAM_ERROR; - } - } - if (headers != NULL) { - *headers = hdrs; - headers->offset = data - headers->data; - assert((uint64_t)(data - headers->data) < MAX_CHUNK_PAYLOAD); - assert(headers->offset == headers->data_size - data_size); - } - ReturnWidthHeight: - if (status == VP8_STATUS_OK || - (status == VP8_STATUS_NOT_ENOUGH_DATA && found_vp8x && headers == NULL)) { - if (has_alpha != NULL) { - // If the data did not contain a VP8X/VP8L chunk the only definitive way - // to set this is by looking for alpha data (from an ALPH chunk). - *has_alpha |= (hdrs.alpha_data != NULL); - } - if (width != NULL) *width = image_width; - if (height != NULL) *height = image_height; - return VP8_STATUS_OK; - } else { - return status; - } -} - -VP8StatusCode WebPParseHeaders(WebPHeaderStructure* const headers) { - // status is marked volatile as a workaround for a clang-3.8 (aarch64) bug - volatile VP8StatusCode status; - int has_animation = 0; - assert(headers != NULL); - // fill out headers, ignore width/height/has_alpha. - status = ParseHeadersInternal(headers->data, headers->data_size, - NULL, NULL, NULL, &has_animation, - NULL, headers); - if (status == VP8_STATUS_OK || status == VP8_STATUS_NOT_ENOUGH_DATA) { - // TODO(jzern): full support of animation frames will require API additions. - if (has_animation) { - status = VP8_STATUS_UNSUPPORTED_FEATURE; - } - } - return status; -} - -//------------------------------------------------------------------------------ -// WebPDecParams - -void WebPResetDecParams(WebPDecParams* const params) { - if (params != NULL) { - memset(params, 0, sizeof(*params)); - } -} - -//------------------------------------------------------------------------------ -// "Into" decoding variants - -// Main flow -static VP8StatusCode DecodeInto(const uint8_t* const data, size_t data_size, - WebPDecParams* const params) { - VP8StatusCode status; - VP8Io io; - WebPHeaderStructure headers; - - headers.data = data; - headers.data_size = data_size; - headers.have_all_data = 1; - status = WebPParseHeaders(&headers); // Process Pre-VP8 chunks. - if (status != VP8_STATUS_OK) { - return status; - } - - assert(params != NULL); - VP8InitIo(&io); - io.data = headers.data + headers.offset; - io.data_size = headers.data_size - headers.offset; - WebPInitCustomIo(params, &io); // Plug the I/O functions. - - if (!headers.is_lossless) { - VP8Decoder* const dec = VP8New(); - if (dec == NULL) { - return VP8_STATUS_OUT_OF_MEMORY; - } - dec->alpha_data_ = headers.alpha_data; - dec->alpha_data_size_ = headers.alpha_data_size; - - // Decode bitstream header, update io->width/io->height. - if (!VP8GetHeaders(dec, &io)) { - status = dec->status_; // An error occurred. Grab error status. - } else { - // Allocate/check output buffers. - status = WebPAllocateDecBuffer(io.width, io.height, params->options, - params->output); - if (status == VP8_STATUS_OK) { // Decode - // This change must be done before calling VP8Decode() - dec->mt_method_ = VP8GetThreadMethod(params->options, &headers, - io.width, io.height); - VP8InitDithering(params->options, dec); - if (!VP8Decode(dec, &io)) { - status = dec->status_; - } - } - } - VP8Delete(dec); - } else { - VP8LDecoder* const dec = VP8LNew(); - if (dec == NULL) { - return VP8_STATUS_OUT_OF_MEMORY; - } - if (!VP8LDecodeHeader(dec, &io)) { - status = dec->status_; // An error occurred. Grab error status. - } else { - // Allocate/check output buffers. - status = WebPAllocateDecBuffer(io.width, io.height, params->options, - params->output); - if (status == VP8_STATUS_OK) { // Decode - if (!VP8LDecodeImage(dec)) { - status = dec->status_; - } - } - } - VP8LDelete(dec); - } - - if (status != VP8_STATUS_OK) { - WebPFreeDecBuffer(params->output); - } else { - if (params->options != NULL && params->options->flip) { - // This restores the original stride values if options->flip was used - // during the call to WebPAllocateDecBuffer above. - status = WebPFlipBuffer(params->output); - } - } - return status; -} - -// Helpers -static uint8_t* DecodeIntoRGBABuffer(WEBP_CSP_MODE colorspace, - const uint8_t* const data, - size_t data_size, - uint8_t* const rgba, - int stride, size_t size) { - WebPDecParams params; - WebPDecBuffer buf; - if (rgba == NULL) { - return NULL; - } - WebPInitDecBuffer(&buf); - WebPResetDecParams(¶ms); - params.output = &buf; - buf.colorspace = colorspace; - buf.u.RGBA.rgba = rgba; - buf.u.RGBA.stride = stride; - buf.u.RGBA.size = size; - buf.is_external_memory = 1; - if (DecodeInto(data, data_size, ¶ms) != VP8_STATUS_OK) { - return NULL; - } - return rgba; -} - -uint8_t* WebPDecodeRGBInto(const uint8_t* data, size_t data_size, - uint8_t* output, size_t size, int stride) { - return DecodeIntoRGBABuffer(MODE_RGB, data, data_size, output, stride, size); -} - -uint8_t* WebPDecodeRGBAInto(const uint8_t* data, size_t data_size, - uint8_t* output, size_t size, int stride) { - return DecodeIntoRGBABuffer(MODE_RGBA, data, data_size, output, stride, size); -} - -uint8_t* WebPDecodeARGBInto(const uint8_t* data, size_t data_size, - uint8_t* output, size_t size, int stride) { - return DecodeIntoRGBABuffer(MODE_ARGB, data, data_size, output, stride, size); -} - -uint8_t* WebPDecodeBGRInto(const uint8_t* data, size_t data_size, - uint8_t* output, size_t size, int stride) { - return DecodeIntoRGBABuffer(MODE_BGR, data, data_size, output, stride, size); -} - -uint8_t* WebPDecodeBGRAInto(const uint8_t* data, size_t data_size, - uint8_t* output, size_t size, int stride) { - return DecodeIntoRGBABuffer(MODE_BGRA, data, data_size, output, stride, size); -} - -uint8_t* WebPDecodeYUVInto(const uint8_t* data, size_t data_size, - uint8_t* luma, size_t luma_size, int luma_stride, - uint8_t* u, size_t u_size, int u_stride, - uint8_t* v, size_t v_size, int v_stride) { - WebPDecParams params; - WebPDecBuffer output; - if (luma == NULL) return NULL; - WebPInitDecBuffer(&output); - WebPResetDecParams(¶ms); - params.output = &output; - output.colorspace = MODE_YUV; - output.u.YUVA.y = luma; - output.u.YUVA.y_stride = luma_stride; - output.u.YUVA.y_size = luma_size; - output.u.YUVA.u = u; - output.u.YUVA.u_stride = u_stride; - output.u.YUVA.u_size = u_size; - output.u.YUVA.v = v; - output.u.YUVA.v_stride = v_stride; - output.u.YUVA.v_size = v_size; - output.is_external_memory = 1; - if (DecodeInto(data, data_size, ¶ms) != VP8_STATUS_OK) { - return NULL; - } - return luma; -} - -//------------------------------------------------------------------------------ - -static uint8_t* Decode(WEBP_CSP_MODE mode, const uint8_t* const data, - size_t data_size, int* const width, int* const height, - WebPDecBuffer* const keep_info) { - WebPDecParams params; - WebPDecBuffer output; - - WebPInitDecBuffer(&output); - WebPResetDecParams(¶ms); - params.output = &output; - output.colorspace = mode; - - // Retrieve (and report back) the required dimensions from bitstream. - if (!WebPGetInfo(data, data_size, &output.width, &output.height)) { - return NULL; - } - if (width != NULL) *width = output.width; - if (height != NULL) *height = output.height; - - // Decode - if (DecodeInto(data, data_size, ¶ms) != VP8_STATUS_OK) { - return NULL; - } - if (keep_info != NULL) { // keep track of the side-info - WebPCopyDecBuffer(&output, keep_info); - } - // return decoded samples (don't clear 'output'!) - return WebPIsRGBMode(mode) ? output.u.RGBA.rgba : output.u.YUVA.y; -} - -uint8_t* WebPDecodeRGB(const uint8_t* data, size_t data_size, - int* width, int* height) { - return Decode(MODE_RGB, data, data_size, width, height, NULL); -} - -uint8_t* WebPDecodeRGBA(const uint8_t* data, size_t data_size, - int* width, int* height) { - return Decode(MODE_RGBA, data, data_size, width, height, NULL); -} - -uint8_t* WebPDecodeARGB(const uint8_t* data, size_t data_size, - int* width, int* height) { - return Decode(MODE_ARGB, data, data_size, width, height, NULL); -} - -uint8_t* WebPDecodeBGR(const uint8_t* data, size_t data_size, - int* width, int* height) { - return Decode(MODE_BGR, data, data_size, width, height, NULL); -} - -uint8_t* WebPDecodeBGRA(const uint8_t* data, size_t data_size, - int* width, int* height) { - return Decode(MODE_BGRA, data, data_size, width, height, NULL); -} - -uint8_t* WebPDecodeYUV(const uint8_t* data, size_t data_size, - int* width, int* height, uint8_t** u, uint8_t** v, - int* stride, int* uv_stride) { - WebPDecBuffer output; // only to preserve the side-infos - uint8_t* const out = Decode(MODE_YUV, data, data_size, - width, height, &output); - - if (out != NULL) { - const WebPYUVABuffer* const buf = &output.u.YUVA; - *u = buf->u; - *v = buf->v; - *stride = buf->y_stride; - *uv_stride = buf->u_stride; - assert(buf->u_stride == buf->v_stride); - } - return out; -} - -static void DefaultFeatures(WebPBitstreamFeatures* const features) { - assert(features != NULL); - memset(features, 0, sizeof(*features)); -} - -static VP8StatusCode GetFeatures(const uint8_t* const data, size_t data_size, - WebPBitstreamFeatures* const features) { - if (features == NULL || data == NULL) { - return VP8_STATUS_INVALID_PARAM; - } - DefaultFeatures(features); - - // Only parse enough of the data to retrieve the features. - return ParseHeadersInternal(data, data_size, - &features->width, &features->height, - &features->has_alpha, &features->has_animation, - &features->format, NULL); -} - -//------------------------------------------------------------------------------ -// WebPGetInfo() - -int WebPGetInfo(const uint8_t* data, size_t data_size, - int* width, int* height) { - WebPBitstreamFeatures features; - - if (GetFeatures(data, data_size, &features) != VP8_STATUS_OK) { - return 0; - } - - if (width != NULL) { - *width = features.width; - } - if (height != NULL) { - *height = features.height; - } - - return 1; -} - -//------------------------------------------------------------------------------ -// Advance decoding API - -int WebPInitDecoderConfigInternal(WebPDecoderConfig* config, - int version) { - if (WEBP_ABI_IS_INCOMPATIBLE(version, WEBP_DECODER_ABI_VERSION)) { - return 0; // version mismatch - } - if (config == NULL) { - return 0; - } - memset(config, 0, sizeof(*config)); - DefaultFeatures(&config->input); - WebPInitDecBuffer(&config->output); - return 1; -} - -VP8StatusCode WebPGetFeaturesInternal(const uint8_t* data, size_t data_size, - WebPBitstreamFeatures* features, - int version) { - if (WEBP_ABI_IS_INCOMPATIBLE(version, WEBP_DECODER_ABI_VERSION)) { - return VP8_STATUS_INVALID_PARAM; // version mismatch - } - if (features == NULL) { - return VP8_STATUS_INVALID_PARAM; - } - return GetFeatures(data, data_size, features); -} - -VP8StatusCode WebPDecode(const uint8_t* data, size_t data_size, - WebPDecoderConfig* config) { - WebPDecParams params; - VP8StatusCode status; - - if (config == NULL) { - return VP8_STATUS_INVALID_PARAM; - } - - status = GetFeatures(data, data_size, &config->input); - if (status != VP8_STATUS_OK) { - if (status == VP8_STATUS_NOT_ENOUGH_DATA) { - return VP8_STATUS_BITSTREAM_ERROR; // Not-enough-data treated as error. - } - return status; - } - - WebPResetDecParams(¶ms); - params.options = &config->options; - params.output = &config->output; - if (WebPAvoidSlowMemory(params.output, &config->input)) { - // decoding to slow memory: use a temporary in-mem buffer to decode into. - WebPDecBuffer in_mem_buffer; - WebPInitDecBuffer(&in_mem_buffer); - in_mem_buffer.colorspace = config->output.colorspace; - in_mem_buffer.width = config->input.width; - in_mem_buffer.height = config->input.height; - params.output = &in_mem_buffer; - status = DecodeInto(data, data_size, ¶ms); - if (status == VP8_STATUS_OK) { // do the slow-copy - status = WebPCopyDecBufferPixels(&in_mem_buffer, &config->output); - } - WebPFreeDecBuffer(&in_mem_buffer); - } else { - status = DecodeInto(data, data_size, ¶ms); - } - - return status; -} - -//------------------------------------------------------------------------------ -// Cropping and rescaling. - -int WebPIoInitFromOptions(const WebPDecoderOptions* const options, - VP8Io* const io, WEBP_CSP_MODE src_colorspace) { - const int W = io->width; - const int H = io->height; - int x = 0, y = 0, w = W, h = H; - - // Cropping - io->use_cropping = (options != NULL) && (options->use_cropping > 0); - if (io->use_cropping) { - w = options->crop_width; - h = options->crop_height; - x = options->crop_left; - y = options->crop_top; - if (!WebPIsRGBMode(src_colorspace)) { // only snap for YUV420 - x &= ~1; - y &= ~1; - } - if (x < 0 || y < 0 || w <= 0 || h <= 0 || x + w > W || y + h > H) { - return 0; // out of frame boundary error - } - } - io->crop_left = x; - io->crop_top = y; - io->crop_right = x + w; - io->crop_bottom = y + h; - io->mb_w = w; - io->mb_h = h; - - // Scaling - io->use_scaling = (options != NULL) && (options->use_scaling > 0); - if (io->use_scaling) { - int scaled_width = options->scaled_width; - int scaled_height = options->scaled_height; - if (!WebPRescalerGetScaledDimensions(w, h, &scaled_width, &scaled_height)) { - return 0; - } - io->scaled_width = scaled_width; - io->scaled_height = scaled_height; - } - - // Filter - io->bypass_filtering = (options != NULL) && options->bypass_filtering; - - // Fancy upsampler -#ifdef FANCY_UPSAMPLING - io->fancy_upsampling = (options == NULL) || (!options->no_fancy_upsampling); -#endif - - if (io->use_scaling) { - // disable filter (only for large downscaling ratio). - io->bypass_filtering = (io->scaled_width < W * 3 / 4) && - (io->scaled_height < H * 3 / 4); - io->fancy_upsampling = 0; - } - return 1; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/dec/webpi.h b/drivers/webp/dec/webpi.h deleted file mode 100644 index 991b194c22..0000000000 --- a/drivers/webp/dec/webpi.h +++ /dev/null @@ -1,142 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Internal header: WebP decoding parameters and custom IO on buffer -// -// Author: somnath@google.com (Somnath Banerjee) - -#ifndef WEBP_DEC_WEBPI_H_ -#define WEBP_DEC_WEBPI_H_ - -#ifdef __cplusplus -extern "C" { -#endif - -#include "../utils/rescaler.h" -#include "./decode_vp8.h" - -//------------------------------------------------------------------------------ -// WebPDecParams: Decoding output parameters. Transient internal object. - -typedef struct WebPDecParams WebPDecParams; -typedef int (*OutputFunc)(const VP8Io* const io, WebPDecParams* const p); -typedef int (*OutputAlphaFunc)(const VP8Io* const io, WebPDecParams* const p, - int expected_num_out_lines); -typedef int (*OutputRowFunc)(WebPDecParams* const p, int y_pos, - int max_out_lines); - -struct WebPDecParams { - WebPDecBuffer* output; // output buffer. - uint8_t* tmp_y, *tmp_u, *tmp_v; // cache for the fancy upsampler - // or used for tmp rescaling - - int last_y; // coordinate of the line that was last output - const WebPDecoderOptions* options; // if not NULL, use alt decoding features - // rescalers - WebPRescaler scaler_y, scaler_u, scaler_v, scaler_a; - void* memory; // overall scratch memory for the output work. - - OutputFunc emit; // output RGB or YUV samples - OutputAlphaFunc emit_alpha; // output alpha channel - OutputRowFunc emit_alpha_row; // output one line of rescaled alpha values - - WebPDecBuffer* final_output; // In case the user supplied a slow-memory - // output, we decode image in temporary buffer - // (this::output) and copy it here. - WebPDecBuffer tmp_buffer; // this::output will point to this one in case - // of slow memory. -}; - -// Should be called first, before any use of the WebPDecParams object. -void WebPResetDecParams(WebPDecParams* const params); - -// Delete all memory (after an error occurred, for instance) -void WebPFreeDecParams(WebPDecParams* const params); - -//------------------------------------------------------------------------------ -// Header parsing helpers - -// Structure storing a description of the RIFF headers. -typedef struct { - const uint8_t* data; // input buffer - size_t data_size; // input buffer size - int have_all_data; // true if all data is known to be available - size_t offset; // offset to main data chunk (VP8 or VP8L) - const uint8_t* alpha_data; // points to alpha chunk (if present) - size_t alpha_data_size; // alpha chunk size - size_t compressed_size; // VP8/VP8L compressed data size - size_t riff_size; // size of the riff payload (or 0 if absent) - int is_lossless; // true if a VP8L chunk is present -} WebPHeaderStructure; - -// Skips over all valid chunks prior to the first VP8/VP8L frame header. -// Returns: VP8_STATUS_OK, VP8_STATUS_BITSTREAM_ERROR (invalid header/chunk), -// VP8_STATUS_NOT_ENOUGH_DATA (partial input) or VP8_STATUS_UNSUPPORTED_FEATURE -// in the case of non-decodable features (animation for instance). -// In 'headers', compressed_size, offset, alpha_data, alpha_size, and lossless -// fields are updated appropriately upon success. -VP8StatusCode WebPParseHeaders(WebPHeaderStructure* const headers); - -//------------------------------------------------------------------------------ -// Misc utils - -// Initializes VP8Io with custom setup, io and teardown functions. The default -// hooks will use the supplied 'params' as io->opaque handle. -void WebPInitCustomIo(WebPDecParams* const params, VP8Io* const io); - -// Setup crop_xxx fields, mb_w and mb_h in io. 'src_colorspace' refers -// to the *compressed* format, not the output one. -int WebPIoInitFromOptions(const WebPDecoderOptions* const options, - VP8Io* const io, WEBP_CSP_MODE src_colorspace); - -//------------------------------------------------------------------------------ -// Internal functions regarding WebPDecBuffer memory (in buffer.c). -// Don't really need to be externally visible for now. - -// Prepare 'buffer' with the requested initial dimensions width/height. -// If no external storage is supplied, initializes buffer by allocating output -// memory and setting up the stride information. Validate the parameters. Return -// an error code in case of problem (no memory, or invalid stride / size / -// dimension / etc.). If *options is not NULL, also verify that the options' -// parameters are valid and apply them to the width/height dimensions of the -// output buffer. This takes cropping / scaling / rotation into account. -// Also incorporates the options->flip flag to flip the buffer parameters if -// needed. -VP8StatusCode WebPAllocateDecBuffer(int width, int height, - const WebPDecoderOptions* const options, - WebPDecBuffer* const buffer); - -// Flip buffer vertically by negating the various strides. -VP8StatusCode WebPFlipBuffer(WebPDecBuffer* const buffer); - -// Copy 'src' into 'dst' buffer, making sure 'dst' is not marked as owner of the -// memory (still held by 'src'). No pixels are copied. -void WebPCopyDecBuffer(const WebPDecBuffer* const src, - WebPDecBuffer* const dst); - -// Copy and transfer ownership from src to dst (beware of parameter order!) -void WebPGrabDecBuffer(WebPDecBuffer* const src, WebPDecBuffer* const dst); - -// Copy pixels from 'src' into a *preallocated* 'dst' buffer. Returns -// VP8_STATUS_INVALID_PARAM if the 'dst' is not set up correctly for the copy. -VP8StatusCode WebPCopyDecBufferPixels(const WebPDecBuffer* const src, - WebPDecBuffer* const dst); - -// Returns true if decoding will be slow with the current configuration -// and bitstream features. -int WebPAvoidSlowMemory(const WebPDecBuffer* const output, - const WebPBitstreamFeatures* const features); - -//------------------------------------------------------------------------------ - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_DEC_WEBPI_H_ */ diff --git a/drivers/webp/decode.h b/drivers/webp/decode.h deleted file mode 100644 index 7a3bed93a4..0000000000 --- a/drivers/webp/decode.h +++ /dev/null @@ -1,493 +0,0 @@ -// Copyright 2010 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Main decoding functions for WebP images. -// -// Author: Skal (pascal.massimino@gmail.com) - -#ifndef WEBP_WEBP_DECODE_H_ -#define WEBP_WEBP_DECODE_H_ - -#include "./types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define WEBP_DECODER_ABI_VERSION 0x0208 // MAJOR(8b) + MINOR(8b) - -// Note: forward declaring enumerations is not allowed in (strict) C and C++, -// the types are left here for reference. -// typedef enum VP8StatusCode VP8StatusCode; -// typedef enum WEBP_CSP_MODE WEBP_CSP_MODE; -typedef struct WebPRGBABuffer WebPRGBABuffer; -typedef struct WebPYUVABuffer WebPYUVABuffer; -typedef struct WebPDecBuffer WebPDecBuffer; -typedef struct WebPIDecoder WebPIDecoder; -typedef struct WebPBitstreamFeatures WebPBitstreamFeatures; -typedef struct WebPDecoderOptions WebPDecoderOptions; -typedef struct WebPDecoderConfig WebPDecoderConfig; - -// Return the decoder's version number, packed in hexadecimal using 8bits for -// each of major/minor/revision. E.g: v2.5.7 is 0x020507. -WEBP_EXTERN(int) WebPGetDecoderVersion(void); - -// Retrieve basic header information: width, height. -// This function will also validate the header, returning true on success, -// false otherwise. '*width' and '*height' are only valid on successful return. -// Pointers 'width' and 'height' can be passed NULL if deemed irrelevant. -WEBP_EXTERN(int) WebPGetInfo(const uint8_t* data, size_t data_size, - int* width, int* height); - -// Decodes WebP images pointed to by 'data' and returns RGBA samples, along -// with the dimensions in *width and *height. The ordering of samples in -// memory is R, G, B, A, R, G, B, A... in scan order (endian-independent). -// The returned pointer should be deleted calling WebPFree(). -// Returns NULL in case of error. -WEBP_EXTERN(uint8_t*) WebPDecodeRGBA(const uint8_t* data, size_t data_size, - int* width, int* height); - -// Same as WebPDecodeRGBA, but returning A, R, G, B, A, R, G, B... ordered data. -WEBP_EXTERN(uint8_t*) WebPDecodeARGB(const uint8_t* data, size_t data_size, - int* width, int* height); - -// Same as WebPDecodeRGBA, but returning B, G, R, A, B, G, R, A... ordered data. -WEBP_EXTERN(uint8_t*) WebPDecodeBGRA(const uint8_t* data, size_t data_size, - int* width, int* height); - -// Same as WebPDecodeRGBA, but returning R, G, B, R, G, B... ordered data. -// If the bitstream contains transparency, it is ignored. -WEBP_EXTERN(uint8_t*) WebPDecodeRGB(const uint8_t* data, size_t data_size, - int* width, int* height); - -// Same as WebPDecodeRGB, but returning B, G, R, B, G, R... ordered data. -WEBP_EXTERN(uint8_t*) WebPDecodeBGR(const uint8_t* data, size_t data_size, - int* width, int* height); - - -// Decode WebP images pointed to by 'data' to Y'UV format(*). The pointer -// returned is the Y samples buffer. Upon return, *u and *v will point to -// the U and V chroma data. These U and V buffers need NOT be passed to -// WebPFree(), unlike the returned Y luma one. The dimension of the U and V -// planes are both (*width + 1) / 2 and (*height + 1)/ 2. -// Upon return, the Y buffer has a stride returned as '*stride', while U and V -// have a common stride returned as '*uv_stride'. -// Return NULL in case of error. -// (*) Also named Y'CbCr. See: http://en.wikipedia.org/wiki/YCbCr -WEBP_EXTERN(uint8_t*) WebPDecodeYUV(const uint8_t* data, size_t data_size, - int* width, int* height, - uint8_t** u, uint8_t** v, - int* stride, int* uv_stride); - -// Releases memory returned by the WebPDecode*() functions above. -WEBP_EXTERN(void) WebPFree(void* ptr); - -// These five functions are variants of the above ones, that decode the image -// directly into a pre-allocated buffer 'output_buffer'. The maximum storage -// available in this buffer is indicated by 'output_buffer_size'. If this -// storage is not sufficient (or an error occurred), NULL is returned. -// Otherwise, output_buffer is returned, for convenience. -// The parameter 'output_stride' specifies the distance (in bytes) -// between scanlines. Hence, output_buffer_size is expected to be at least -// output_stride x picture-height. -WEBP_EXTERN(uint8_t*) WebPDecodeRGBAInto( - const uint8_t* data, size_t data_size, - uint8_t* output_buffer, size_t output_buffer_size, int output_stride); -WEBP_EXTERN(uint8_t*) WebPDecodeARGBInto( - const uint8_t* data, size_t data_size, - uint8_t* output_buffer, size_t output_buffer_size, int output_stride); -WEBP_EXTERN(uint8_t*) WebPDecodeBGRAInto( - const uint8_t* data, size_t data_size, - uint8_t* output_buffer, size_t output_buffer_size, int output_stride); - -// RGB and BGR variants. Here too the transparency information, if present, -// will be dropped and ignored. -WEBP_EXTERN(uint8_t*) WebPDecodeRGBInto( - const uint8_t* data, size_t data_size, - uint8_t* output_buffer, size_t output_buffer_size, int output_stride); -WEBP_EXTERN(uint8_t*) WebPDecodeBGRInto( - const uint8_t* data, size_t data_size, - uint8_t* output_buffer, size_t output_buffer_size, int output_stride); - -// WebPDecodeYUVInto() is a variant of WebPDecodeYUV() that operates directly -// into pre-allocated luma/chroma plane buffers. This function requires the -// strides to be passed: one for the luma plane and one for each of the -// chroma ones. The size of each plane buffer is passed as 'luma_size', -// 'u_size' and 'v_size' respectively. -// Pointer to the luma plane ('*luma') is returned or NULL if an error occurred -// during decoding (or because some buffers were found to be too small). -WEBP_EXTERN(uint8_t*) WebPDecodeYUVInto( - const uint8_t* data, size_t data_size, - uint8_t* luma, size_t luma_size, int luma_stride, - uint8_t* u, size_t u_size, int u_stride, - uint8_t* v, size_t v_size, int v_stride); - -//------------------------------------------------------------------------------ -// Output colorspaces and buffer - -// Colorspaces -// Note: the naming describes the byte-ordering of packed samples in memory. -// For instance, MODE_BGRA relates to samples ordered as B,G,R,A,B,G,R,A,... -// Non-capital names (e.g.:MODE_Argb) relates to pre-multiplied RGB channels. -// RGBA-4444 and RGB-565 colorspaces are represented by following byte-order: -// RGBA-4444: [r3 r2 r1 r0 g3 g2 g1 g0], [b3 b2 b1 b0 a3 a2 a1 a0], ... -// RGB-565: [r4 r3 r2 r1 r0 g5 g4 g3], [g2 g1 g0 b4 b3 b2 b1 b0], ... -// In the case WEBP_SWAP_16BITS_CSP is defined, the bytes are swapped for -// these two modes: -// RGBA-4444: [b3 b2 b1 b0 a3 a2 a1 a0], [r3 r2 r1 r0 g3 g2 g1 g0], ... -// RGB-565: [g2 g1 g0 b4 b3 b2 b1 b0], [r4 r3 r2 r1 r0 g5 g4 g3], ... - -typedef enum WEBP_CSP_MODE { - MODE_RGB = 0, MODE_RGBA = 1, - MODE_BGR = 2, MODE_BGRA = 3, - MODE_ARGB = 4, MODE_RGBA_4444 = 5, - MODE_RGB_565 = 6, - // RGB-premultiplied transparent modes (alpha value is preserved) - MODE_rgbA = 7, - MODE_bgrA = 8, - MODE_Argb = 9, - MODE_rgbA_4444 = 10, - // YUV modes must come after RGB ones. - MODE_YUV = 11, MODE_YUVA = 12, // yuv 4:2:0 - MODE_LAST = 13 -} WEBP_CSP_MODE; - -// Some useful macros: -static WEBP_INLINE int WebPIsPremultipliedMode(WEBP_CSP_MODE mode) { - return (mode == MODE_rgbA || mode == MODE_bgrA || mode == MODE_Argb || - mode == MODE_rgbA_4444); -} - -static WEBP_INLINE int WebPIsAlphaMode(WEBP_CSP_MODE mode) { - return (mode == MODE_RGBA || mode == MODE_BGRA || mode == MODE_ARGB || - mode == MODE_RGBA_4444 || mode == MODE_YUVA || - WebPIsPremultipliedMode(mode)); -} - -static WEBP_INLINE int WebPIsRGBMode(WEBP_CSP_MODE mode) { - return (mode < MODE_YUV); -} - -//------------------------------------------------------------------------------ -// WebPDecBuffer: Generic structure for describing the output sample buffer. - -struct WebPRGBABuffer { // view as RGBA - uint8_t* rgba; // pointer to RGBA samples - int stride; // stride in bytes from one scanline to the next. - size_t size; // total size of the *rgba buffer. -}; - -struct WebPYUVABuffer { // view as YUVA - uint8_t* y, *u, *v, *a; // pointer to luma, chroma U/V, alpha samples - int y_stride; // luma stride - int u_stride, v_stride; // chroma strides - int a_stride; // alpha stride - size_t y_size; // luma plane size - size_t u_size, v_size; // chroma planes size - size_t a_size; // alpha-plane size -}; - -// Output buffer -struct WebPDecBuffer { - WEBP_CSP_MODE colorspace; // Colorspace. - int width, height; // Dimensions. - int is_external_memory; // If non-zero, 'internal_memory' pointer is not - // used. If value is '2' or more, the external - // memory is considered 'slow' and multiple - // read/write will be avoided. - union { - WebPRGBABuffer RGBA; - WebPYUVABuffer YUVA; - } u; // Nameless union of buffer parameters. - uint32_t pad[4]; // padding for later use - - uint8_t* private_memory; // Internally allocated memory (only when - // is_external_memory is 0). Should not be used - // externally, but accessed via the buffer union. -}; - -// Internal, version-checked, entry point -WEBP_EXTERN(int) WebPInitDecBufferInternal(WebPDecBuffer*, int); - -// Initialize the structure as empty. Must be called before any other use. -// Returns false in case of version mismatch -static WEBP_INLINE int WebPInitDecBuffer(WebPDecBuffer* buffer) { - return WebPInitDecBufferInternal(buffer, WEBP_DECODER_ABI_VERSION); -} - -// Free any memory associated with the buffer. Must always be called last. -// Note: doesn't free the 'buffer' structure itself. -WEBP_EXTERN(void) WebPFreeDecBuffer(WebPDecBuffer* buffer); - -//------------------------------------------------------------------------------ -// Enumeration of the status codes - -typedef enum VP8StatusCode { - VP8_STATUS_OK = 0, - VP8_STATUS_OUT_OF_MEMORY, - VP8_STATUS_INVALID_PARAM, - VP8_STATUS_BITSTREAM_ERROR, - VP8_STATUS_UNSUPPORTED_FEATURE, - VP8_STATUS_SUSPENDED, - VP8_STATUS_USER_ABORT, - VP8_STATUS_NOT_ENOUGH_DATA -} VP8StatusCode; - -//------------------------------------------------------------------------------ -// Incremental decoding -// -// This API allows streamlined decoding of partial data. -// Picture can be incrementally decoded as data become available thanks to the -// WebPIDecoder object. This object can be left in a SUSPENDED state if the -// picture is only partially decoded, pending additional input. -// Code example: -// -// WebPInitDecBuffer(&buffer); -// buffer.colorspace = mode; -// ... -// WebPIDecoder* idec = WebPINewDecoder(&buffer); -// while (has_more_data) { -// // ... (get additional data) -// status = WebPIAppend(idec, new_data, new_data_size); -// if (status != VP8_STATUS_SUSPENDED || -// break; -// } -// -// // The above call decodes the current available buffer. -// // Part of the image can now be refreshed by calling to -// // WebPIDecGetRGB()/WebPIDecGetYUVA() etc. -// } -// WebPIDelete(idec); - -// Creates a new incremental decoder with the supplied buffer parameter. -// This output_buffer can be passed NULL, in which case a default output buffer -// is used (with MODE_RGB). Otherwise, an internal reference to 'output_buffer' -// is kept, which means that the lifespan of 'output_buffer' must be larger than -// that of the returned WebPIDecoder object. -// The supplied 'output_buffer' content MUST NOT be changed between calls to -// WebPIAppend() or WebPIUpdate() unless 'output_buffer.is_external_memory' is -// not set to 0. In such a case, it is allowed to modify the pointers, size and -// stride of output_buffer.u.RGBA or output_buffer.u.YUVA, provided they remain -// within valid bounds. -// All other fields of WebPDecBuffer MUST remain constant between calls. -// Returns NULL if the allocation failed. -WEBP_EXTERN(WebPIDecoder*) WebPINewDecoder(WebPDecBuffer* output_buffer); - -// This function allocates and initializes an incremental-decoder object, which -// will output the RGB/A samples specified by 'csp' into a preallocated -// buffer 'output_buffer'. The size of this buffer is at least -// 'output_buffer_size' and the stride (distance in bytes between two scanlines) -// is specified by 'output_stride'. -// Additionally, output_buffer can be passed NULL in which case the output -// buffer will be allocated automatically when the decoding starts. The -// colorspace 'csp' is taken into account for allocating this buffer. All other -// parameters are ignored. -// Returns NULL if the allocation failed, or if some parameters are invalid. -WEBP_EXTERN(WebPIDecoder*) WebPINewRGB( - WEBP_CSP_MODE csp, - uint8_t* output_buffer, size_t output_buffer_size, int output_stride); - -// This function allocates and initializes an incremental-decoder object, which -// will output the raw luma/chroma samples into a preallocated planes if -// supplied. The luma plane is specified by its pointer 'luma', its size -// 'luma_size' and its stride 'luma_stride'. Similarly, the chroma-u plane -// is specified by the 'u', 'u_size' and 'u_stride' parameters, and the chroma-v -// plane by 'v' and 'v_size'. And same for the alpha-plane. The 'a' pointer -// can be pass NULL in case one is not interested in the transparency plane. -// Conversely, 'luma' can be passed NULL if no preallocated planes are supplied. -// In this case, the output buffer will be automatically allocated (using -// MODE_YUVA) when decoding starts. All parameters are then ignored. -// Returns NULL if the allocation failed or if a parameter is invalid. -WEBP_EXTERN(WebPIDecoder*) WebPINewYUVA( - uint8_t* luma, size_t luma_size, int luma_stride, - uint8_t* u, size_t u_size, int u_stride, - uint8_t* v, size_t v_size, int v_stride, - uint8_t* a, size_t a_size, int a_stride); - -// Deprecated version of the above, without the alpha plane. -// Kept for backward compatibility. -WEBP_EXTERN(WebPIDecoder*) WebPINewYUV( - uint8_t* luma, size_t luma_size, int luma_stride, - uint8_t* u, size_t u_size, int u_stride, - uint8_t* v, size_t v_size, int v_stride); - -// Deletes the WebPIDecoder object and associated memory. Must always be called -// if WebPINewDecoder, WebPINewRGB or WebPINewYUV succeeded. -WEBP_EXTERN(void) WebPIDelete(WebPIDecoder* idec); - -// Copies and decodes the next available data. Returns VP8_STATUS_OK when -// the image is successfully decoded. Returns VP8_STATUS_SUSPENDED when more -// data is expected. Returns error in other cases. -WEBP_EXTERN(VP8StatusCode) WebPIAppend( - WebPIDecoder* idec, const uint8_t* data, size_t data_size); - -// A variant of the above function to be used when data buffer contains -// partial data from the beginning. In this case data buffer is not copied -// to the internal memory. -// Note that the value of the 'data' pointer can change between calls to -// WebPIUpdate, for instance when the data buffer is resized to fit larger data. -WEBP_EXTERN(VP8StatusCode) WebPIUpdate( - WebPIDecoder* idec, const uint8_t* data, size_t data_size); - -// Returns the RGB/A image decoded so far. Returns NULL if output params -// are not initialized yet. The RGB/A output type corresponds to the colorspace -// specified during call to WebPINewDecoder() or WebPINewRGB(). -// *last_y is the index of last decoded row in raster scan order. Some pointers -// (*last_y, *width etc.) can be NULL if corresponding information is not -// needed. -WEBP_EXTERN(uint8_t*) WebPIDecGetRGB( - const WebPIDecoder* idec, int* last_y, - int* width, int* height, int* stride); - -// Same as above function to get a YUVA image. Returns pointer to the luma -// plane or NULL in case of error. If there is no alpha information -// the alpha pointer '*a' will be returned NULL. -WEBP_EXTERN(uint8_t*) WebPIDecGetYUVA( - const WebPIDecoder* idec, int* last_y, - uint8_t** u, uint8_t** v, uint8_t** a, - int* width, int* height, int* stride, int* uv_stride, int* a_stride); - -// Deprecated alpha-less version of WebPIDecGetYUVA(): it will ignore the -// alpha information (if present). Kept for backward compatibility. -static WEBP_INLINE uint8_t* WebPIDecGetYUV( - const WebPIDecoder* idec, int* last_y, uint8_t** u, uint8_t** v, - int* width, int* height, int* stride, int* uv_stride) { - return WebPIDecGetYUVA(idec, last_y, u, v, NULL, width, height, - stride, uv_stride, NULL); -} - -// Generic call to retrieve information about the displayable area. -// If non NULL, the left/right/width/height pointers are filled with the visible -// rectangular area so far. -// Returns NULL in case the incremental decoder object is in an invalid state. -// Otherwise returns the pointer to the internal representation. This structure -// is read-only, tied to WebPIDecoder's lifespan and should not be modified. -WEBP_EXTERN(const WebPDecBuffer*) WebPIDecodedArea( - const WebPIDecoder* idec, int* left, int* top, int* width, int* height); - -//------------------------------------------------------------------------------ -// Advanced decoding parametrization -// -// Code sample for using the advanced decoding API -/* - // A) Init a configuration object - WebPDecoderConfig config; - CHECK(WebPInitDecoderConfig(&config)); - - // B) optional: retrieve the bitstream's features. - CHECK(WebPGetFeatures(data, data_size, &config.input) == VP8_STATUS_OK); - - // C) Adjust 'config', if needed - config.no_fancy_upsampling = 1; - config.output.colorspace = MODE_BGRA; - // etc. - - // Note that you can also make config.output point to an externally - // supplied memory buffer, provided it's big enough to store the decoded - // picture. Otherwise, config.output will just be used to allocate memory - // and store the decoded picture. - - // D) Decode! - CHECK(WebPDecode(data, data_size, &config) == VP8_STATUS_OK); - - // E) Decoded image is now in config.output (and config.output.u.RGBA) - - // F) Reclaim memory allocated in config's object. It's safe to call - // this function even if the memory is external and wasn't allocated - // by WebPDecode(). - WebPFreeDecBuffer(&config.output); -*/ - -// Features gathered from the bitstream -struct WebPBitstreamFeatures { - int width; // Width in pixels, as read from the bitstream. - int height; // Height in pixels, as read from the bitstream. - int has_alpha; // True if the bitstream contains an alpha channel. - int has_animation; // True if the bitstream is an animation. - int format; // 0 = undefined (/mixed), 1 = lossy, 2 = lossless - - uint32_t pad[5]; // padding for later use -}; - -// Internal, version-checked, entry point -WEBP_EXTERN(VP8StatusCode) WebPGetFeaturesInternal( - const uint8_t*, size_t, WebPBitstreamFeatures*, int); - -// Retrieve features from the bitstream. The *features structure is filled -// with information gathered from the bitstream. -// Returns VP8_STATUS_OK when the features are successfully retrieved. Returns -// VP8_STATUS_NOT_ENOUGH_DATA when more data is needed to retrieve the -// features from headers. Returns error in other cases. -static WEBP_INLINE VP8StatusCode WebPGetFeatures( - const uint8_t* data, size_t data_size, - WebPBitstreamFeatures* features) { - return WebPGetFeaturesInternal(data, data_size, features, - WEBP_DECODER_ABI_VERSION); -} - -// Decoding options -struct WebPDecoderOptions { - int bypass_filtering; // if true, skip the in-loop filtering - int no_fancy_upsampling; // if true, use faster pointwise upsampler - int use_cropping; // if true, cropping is applied _first_ - int crop_left, crop_top; // top-left position for cropping. - // Will be snapped to even values. - int crop_width, crop_height; // dimension of the cropping area - int use_scaling; // if true, scaling is applied _afterward_ - int scaled_width, scaled_height; // final resolution - int use_threads; // if true, use multi-threaded decoding - int dithering_strength; // dithering strength (0=Off, 100=full) - int flip; // flip output vertically - int alpha_dithering_strength; // alpha dithering strength in [0..100] - - uint32_t pad[5]; // padding for later use -}; - -// Main object storing the configuration for advanced decoding. -struct WebPDecoderConfig { - WebPBitstreamFeatures input; // Immutable bitstream features (optional) - WebPDecBuffer output; // Output buffer (can point to external mem) - WebPDecoderOptions options; // Decoding options -}; - -// Internal, version-checked, entry point -WEBP_EXTERN(int) WebPInitDecoderConfigInternal(WebPDecoderConfig*, int); - -// Initialize the configuration as empty. This function must always be -// called first, unless WebPGetFeatures() is to be called. -// Returns false in case of mismatched version. -static WEBP_INLINE int WebPInitDecoderConfig(WebPDecoderConfig* config) { - return WebPInitDecoderConfigInternal(config, WEBP_DECODER_ABI_VERSION); -} - -// Instantiate a new incremental decoder object with the requested -// configuration. The bitstream can be passed using 'data' and 'data_size' -// parameter, in which case the features will be parsed and stored into -// config->input. Otherwise, 'data' can be NULL and no parsing will occur. -// Note that 'config' can be NULL too, in which case a default configuration -// is used. If 'config' is not NULL, it must outlive the WebPIDecoder object -// as some references to its fields will be used. No internal copy of 'config' -// is made. -// The return WebPIDecoder object must always be deleted calling WebPIDelete(). -// Returns NULL in case of error (and config->status will then reflect -// the error condition, if available). -WEBP_EXTERN(WebPIDecoder*) WebPIDecode(const uint8_t* data, size_t data_size, - WebPDecoderConfig* config); - -// Non-incremental version. This version decodes the full data at once, taking -// 'config' into account. Returns decoding status (which should be VP8_STATUS_OK -// if the decoding was successful). Note that 'config' cannot be NULL. -WEBP_EXTERN(VP8StatusCode) WebPDecode(const uint8_t* data, size_t data_size, - WebPDecoderConfig* config); - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_WEBP_DECODE_H_ */ diff --git a/drivers/webp/demux.h b/drivers/webp/demux.h deleted file mode 100644 index 454f6914b2..0000000000 --- a/drivers/webp/demux.h +++ /dev/null @@ -1,358 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Demux API. -// Enables extraction of image and extended format data from WebP files. - -// Code Example: Demuxing WebP data to extract all the frames, ICC profile -// and EXIF/XMP metadata. -/* - WebPDemuxer* demux = WebPDemux(&webp_data); - - uint32_t width = WebPDemuxGetI(demux, WEBP_FF_CANVAS_WIDTH); - uint32_t height = WebPDemuxGetI(demux, WEBP_FF_CANVAS_HEIGHT); - // ... (Get information about the features present in the WebP file). - uint32_t flags = WebPDemuxGetI(demux, WEBP_FF_FORMAT_FLAGS); - - // ... (Iterate over all frames). - WebPIterator iter; - if (WebPDemuxGetFrame(demux, 1, &iter)) { - do { - // ... (Consume 'iter'; e.g. Decode 'iter.fragment' with WebPDecode(), - // ... and get other frame properties like width, height, offsets etc. - // ... see 'struct WebPIterator' below for more info). - } while (WebPDemuxNextFrame(&iter)); - WebPDemuxReleaseIterator(&iter); - } - - // ... (Extract metadata). - WebPChunkIterator chunk_iter; - if (flags & ICCP_FLAG) WebPDemuxGetChunk(demux, "ICCP", 1, &chunk_iter); - // ... (Consume the ICC profile in 'chunk_iter.chunk'). - WebPDemuxReleaseChunkIterator(&chunk_iter); - if (flags & EXIF_FLAG) WebPDemuxGetChunk(demux, "EXIF", 1, &chunk_iter); - // ... (Consume the EXIF metadata in 'chunk_iter.chunk'). - WebPDemuxReleaseChunkIterator(&chunk_iter); - if (flags & XMP_FLAG) WebPDemuxGetChunk(demux, "XMP ", 1, &chunk_iter); - // ... (Consume the XMP metadata in 'chunk_iter.chunk'). - WebPDemuxReleaseChunkIterator(&chunk_iter); - WebPDemuxDelete(demux); -*/ - -#ifndef WEBP_WEBP_DEMUX_H_ -#define WEBP_WEBP_DEMUX_H_ - -#include "./decode.h" // for WEBP_CSP_MODE -#include "./mux_types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define WEBP_DEMUX_ABI_VERSION 0x0107 // MAJOR(8b) + MINOR(8b) - -// Note: forward declaring enumerations is not allowed in (strict) C and C++, -// the types are left here for reference. -// typedef enum WebPDemuxState WebPDemuxState; -// typedef enum WebPFormatFeature WebPFormatFeature; -typedef struct WebPDemuxer WebPDemuxer; -typedef struct WebPIterator WebPIterator; -typedef struct WebPChunkIterator WebPChunkIterator; -typedef struct WebPAnimInfo WebPAnimInfo; -typedef struct WebPAnimDecoderOptions WebPAnimDecoderOptions; - -//------------------------------------------------------------------------------ - -// Returns the version number of the demux library, packed in hexadecimal using -// 8bits for each of major/minor/revision. E.g: v2.5.7 is 0x020507. -WEBP_EXTERN(int) WebPGetDemuxVersion(void); - -//------------------------------------------------------------------------------ -// Life of a Demux object - -typedef enum WebPDemuxState { - WEBP_DEMUX_PARSE_ERROR = -1, // An error occurred while parsing. - WEBP_DEMUX_PARSING_HEADER = 0, // Not enough data to parse full header. - WEBP_DEMUX_PARSED_HEADER = 1, // Header parsing complete, - // data may be available. - WEBP_DEMUX_DONE = 2 // Entire file has been parsed. -} WebPDemuxState; - -// Internal, version-checked, entry point -WEBP_EXTERN(WebPDemuxer*) WebPDemuxInternal( - const WebPData*, int, WebPDemuxState*, int); - -// Parses the full WebP file given by 'data'. For single images the WebP file -// header alone or the file header and the chunk header may be absent. -// Returns a WebPDemuxer object on successful parse, NULL otherwise. -static WEBP_INLINE WebPDemuxer* WebPDemux(const WebPData* data) { - return WebPDemuxInternal(data, 0, NULL, WEBP_DEMUX_ABI_VERSION); -} - -// Parses the possibly incomplete WebP file given by 'data'. -// If 'state' is non-NULL it will be set to indicate the status of the demuxer. -// Returns NULL in case of error or if there isn't enough data to start parsing; -// and a WebPDemuxer object on successful parse. -// Note that WebPDemuxer keeps internal pointers to 'data' memory segment. -// If this data is volatile, the demuxer object should be deleted (by calling -// WebPDemuxDelete()) and WebPDemuxPartial() called again on the new data. -// This is usually an inexpensive operation. -static WEBP_INLINE WebPDemuxer* WebPDemuxPartial( - const WebPData* data, WebPDemuxState* state) { - return WebPDemuxInternal(data, 1, state, WEBP_DEMUX_ABI_VERSION); -} - -// Frees memory associated with 'dmux'. -WEBP_EXTERN(void) WebPDemuxDelete(WebPDemuxer* dmux); - -//------------------------------------------------------------------------------ -// Data/information extraction. - -typedef enum WebPFormatFeature { - WEBP_FF_FORMAT_FLAGS, // Extended format flags present in the 'VP8X' chunk. - WEBP_FF_CANVAS_WIDTH, - WEBP_FF_CANVAS_HEIGHT, - WEBP_FF_LOOP_COUNT, - WEBP_FF_BACKGROUND_COLOR, - WEBP_FF_FRAME_COUNT // Number of frames present in the demux object. - // In case of a partial demux, this is the number of - // frames seen so far, with the last frame possibly - // being partial. -} WebPFormatFeature; - -// Get the 'feature' value from the 'dmux'. -// NOTE: values are only valid if WebPDemux() was used or WebPDemuxPartial() -// returned a state > WEBP_DEMUX_PARSING_HEADER. -WEBP_EXTERN(uint32_t) WebPDemuxGetI( - const WebPDemuxer* dmux, WebPFormatFeature feature); - -//------------------------------------------------------------------------------ -// Frame iteration. - -struct WebPIterator { - int frame_num; - int num_frames; // equivalent to WEBP_FF_FRAME_COUNT. - int x_offset, y_offset; // offset relative to the canvas. - int width, height; // dimensions of this frame. - int duration; // display duration in milliseconds. - WebPMuxAnimDispose dispose_method; // dispose method for the frame. - int complete; // true if 'fragment' contains a full frame. partial images - // may still be decoded with the WebP incremental decoder. - WebPData fragment; // The frame given by 'frame_num'. Note for historical - // reasons this is called a fragment. - int has_alpha; // True if the frame contains transparency. - WebPMuxAnimBlend blend_method; // Blend operation for the frame. - - uint32_t pad[2]; // padding for later use. - void* private_; // for internal use only. -}; - -// Retrieves frame 'frame_number' from 'dmux'. -// 'iter->fragment' points to the frame on return from this function. -// Setting 'frame_number' equal to 0 will return the last frame of the image. -// Returns false if 'dmux' is NULL or frame 'frame_number' is not present. -// Call WebPDemuxReleaseIterator() when use of the iterator is complete. -// NOTE: 'dmux' must persist for the lifetime of 'iter'. -WEBP_EXTERN(int) WebPDemuxGetFrame( - const WebPDemuxer* dmux, int frame_number, WebPIterator* iter); - -// Sets 'iter->fragment' to point to the next ('iter->frame_num' + 1) or -// previous ('iter->frame_num' - 1) frame. These functions do not loop. -// Returns true on success, false otherwise. -WEBP_EXTERN(int) WebPDemuxNextFrame(WebPIterator* iter); -WEBP_EXTERN(int) WebPDemuxPrevFrame(WebPIterator* iter); - -// Releases any memory associated with 'iter'. -// Must be called before any subsequent calls to WebPDemuxGetChunk() on the same -// iter. Also, must be called before destroying the associated WebPDemuxer with -// WebPDemuxDelete(). -WEBP_EXTERN(void) WebPDemuxReleaseIterator(WebPIterator* iter); - -//------------------------------------------------------------------------------ -// Chunk iteration. - -struct WebPChunkIterator { - // The current and total number of chunks with the fourcc given to - // WebPDemuxGetChunk(). - int chunk_num; - int num_chunks; - WebPData chunk; // The payload of the chunk. - - uint32_t pad[6]; // padding for later use - void* private_; -}; - -// Retrieves the 'chunk_number' instance of the chunk with id 'fourcc' from -// 'dmux'. -// 'fourcc' is a character array containing the fourcc of the chunk to return, -// e.g., "ICCP", "XMP ", "EXIF", etc. -// Setting 'chunk_number' equal to 0 will return the last chunk in a set. -// Returns true if the chunk is found, false otherwise. Image related chunk -// payloads are accessed through WebPDemuxGetFrame() and related functions. -// Call WebPDemuxReleaseChunkIterator() when use of the iterator is complete. -// NOTE: 'dmux' must persist for the lifetime of the iterator. -WEBP_EXTERN(int) WebPDemuxGetChunk(const WebPDemuxer* dmux, - const char fourcc[4], int chunk_number, - WebPChunkIterator* iter); - -// Sets 'iter->chunk' to point to the next ('iter->chunk_num' + 1) or previous -// ('iter->chunk_num' - 1) chunk. These functions do not loop. -// Returns true on success, false otherwise. -WEBP_EXTERN(int) WebPDemuxNextChunk(WebPChunkIterator* iter); -WEBP_EXTERN(int) WebPDemuxPrevChunk(WebPChunkIterator* iter); - -// Releases any memory associated with 'iter'. -// Must be called before destroying the associated WebPDemuxer with -// WebPDemuxDelete(). -WEBP_EXTERN(void) WebPDemuxReleaseChunkIterator(WebPChunkIterator* iter); - -//------------------------------------------------------------------------------ -// WebPAnimDecoder API -// -// This API allows decoding (possibly) animated WebP images. -// -// Code Example: -/* - WebPAnimDecoderOptions dec_options; - WebPAnimDecoderOptionsInit(&dec_options); - // Tune 'dec_options' as needed. - WebPAnimDecoder* dec = WebPAnimDecoderNew(webp_data, &dec_options); - WebPAnimInfo anim_info; - WebPAnimDecoderGetInfo(dec, &anim_info); - for (uint32_t i = 0; i < anim_info.loop_count; ++i) { - while (WebPAnimDecoderHasMoreFrames(dec)) { - uint8_t* buf; - int timestamp; - WebPAnimDecoderGetNext(dec, &buf, ×tamp); - // ... (Render 'buf' based on 'timestamp'). - // ... (Do NOT free 'buf', as it is owned by 'dec'). - } - WebPAnimDecoderReset(dec); - } - const WebPDemuxer* demuxer = WebPAnimDecoderGetDemuxer(dec); - // ... (Do something using 'demuxer'; e.g. get EXIF/XMP/ICC data). - WebPAnimDecoderDelete(dec); -*/ - -typedef struct WebPAnimDecoder WebPAnimDecoder; // Main opaque object. - -// Global options. -struct WebPAnimDecoderOptions { - // Output colorspace. Only the following modes are supported: - // MODE_RGBA, MODE_BGRA, MODE_rgbA and MODE_bgrA. - WEBP_CSP_MODE color_mode; - int use_threads; // If true, use multi-threaded decoding. - uint32_t padding[7]; // Padding for later use. -}; - -// Internal, version-checked, entry point. -WEBP_EXTERN(int) WebPAnimDecoderOptionsInitInternal( - WebPAnimDecoderOptions*, int); - -// Should always be called, to initialize a fresh WebPAnimDecoderOptions -// structure before modification. Returns false in case of version mismatch. -// WebPAnimDecoderOptionsInit() must have succeeded before using the -// 'dec_options' object. -static WEBP_INLINE int WebPAnimDecoderOptionsInit( - WebPAnimDecoderOptions* dec_options) { - return WebPAnimDecoderOptionsInitInternal(dec_options, - WEBP_DEMUX_ABI_VERSION); -} - -// Internal, version-checked, entry point. -WEBP_EXTERN(WebPAnimDecoder*) WebPAnimDecoderNewInternal( - const WebPData*, const WebPAnimDecoderOptions*, int); - -// Creates and initializes a WebPAnimDecoder object. -// Parameters: -// webp_data - (in) WebP bitstream. This should remain unchanged during the -// lifetime of the output WebPAnimDecoder object. -// dec_options - (in) decoding options. Can be passed NULL to choose -// reasonable defaults (in particular, color mode MODE_RGBA -// will be picked). -// Returns: -// A pointer to the newly created WebPAnimDecoder object, or NULL in case of -// parsing error, invalid option or memory error. -static WEBP_INLINE WebPAnimDecoder* WebPAnimDecoderNew( - const WebPData* webp_data, const WebPAnimDecoderOptions* dec_options) { - return WebPAnimDecoderNewInternal(webp_data, dec_options, - WEBP_DEMUX_ABI_VERSION); -} - -// Global information about the animation.. -struct WebPAnimInfo { - uint32_t canvas_width; - uint32_t canvas_height; - uint32_t loop_count; - uint32_t bgcolor; - uint32_t frame_count; - uint32_t pad[4]; // padding for later use -}; - -// Get global information about the animation. -// Parameters: -// dec - (in) decoder instance to get information from. -// info - (out) global information fetched from the animation. -// Returns: -// True on success. -WEBP_EXTERN(int) WebPAnimDecoderGetInfo(const WebPAnimDecoder* dec, - WebPAnimInfo* info); - -// Fetch the next frame from 'dec' based on options supplied to -// WebPAnimDecoderNew(). This will be a fully reconstructed canvas of size -// 'canvas_width * 4 * canvas_height', and not just the frame sub-rectangle. The -// returned buffer 'buf' is valid only until the next call to -// WebPAnimDecoderGetNext(), WebPAnimDecoderReset() or WebPAnimDecoderDelete(). -// Parameters: -// dec - (in/out) decoder instance from which the next frame is to be fetched. -// buf - (out) decoded frame. -// timestamp - (out) timestamp of the frame in milliseconds. -// Returns: -// False if any of the arguments are NULL, or if there is a parsing or -// decoding error, or if there are no more frames. Otherwise, returns true. -WEBP_EXTERN(int) WebPAnimDecoderGetNext(WebPAnimDecoder* dec, - uint8_t** buf, int* timestamp); - -// Check if there are more frames left to decode. -// Parameters: -// dec - (in) decoder instance to be checked. -// Returns: -// True if 'dec' is not NULL and some frames are yet to be decoded. -// Otherwise, returns false. -WEBP_EXTERN(int) WebPAnimDecoderHasMoreFrames(const WebPAnimDecoder* dec); - -// Resets the WebPAnimDecoder object, so that next call to -// WebPAnimDecoderGetNext() will restart decoding from 1st frame. This would be -// helpful when all frames need to be decoded multiple times (e.g. -// info.loop_count times) without destroying and recreating the 'dec' object. -// Parameters: -// dec - (in/out) decoder instance to be reset -WEBP_EXTERN(void) WebPAnimDecoderReset(WebPAnimDecoder* dec); - -// Grab the internal demuxer object. -// Getting the demuxer object can be useful if one wants to use operations only -// available through demuxer; e.g. to get XMP/EXIF/ICC metadata. The returned -// demuxer object is owned by 'dec' and is valid only until the next call to -// WebPAnimDecoderDelete(). -// -// Parameters: -// dec - (in) decoder instance from which the demuxer object is to be fetched. -WEBP_EXTERN(const WebPDemuxer*) WebPAnimDecoderGetDemuxer( - const WebPAnimDecoder* dec); - -// Deletes the WebPAnimDecoder object. -// Parameters: -// dec - (in/out) decoder instance to be deleted -WEBP_EXTERN(void) WebPAnimDecoderDelete(WebPAnimDecoder* dec); - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_WEBP_DEMUX_H_ */ diff --git a/drivers/webp/demux/anim_decode.c b/drivers/webp/demux/anim_decode.c deleted file mode 100644 index 39cf3de197..0000000000 --- a/drivers/webp/demux/anim_decode.c +++ /dev/null @@ -1,442 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// AnimDecoder implementation. -// - -#ifdef HAVE_CONFIG_H -#include "webp/config.h" -#endif - -#include <assert.h> -#include <string.h> - -#include "../utils/utils.h" -#include "webp/decode.h" -#include "webp/demux.h" - -#define NUM_CHANNELS 4 - -typedef void (*BlendRowFunc)(uint32_t* const, const uint32_t* const, int); -static void BlendPixelRowNonPremult(uint32_t* const src, - const uint32_t* const dst, int num_pixels); -static void BlendPixelRowPremult(uint32_t* const src, const uint32_t* const dst, - int num_pixels); - -struct WebPAnimDecoder { - WebPDemuxer* demux_; // Demuxer created from given WebP bitstream. - WebPDecoderConfig config_; // Decoder config. - // Note: we use a pointer to a function blending multiple pixels at a time to - // allow possible inlining of per-pixel blending function. - BlendRowFunc blend_func_; // Pointer to the chose blend row function. - WebPAnimInfo info_; // Global info about the animation. - uint8_t* curr_frame_; // Current canvas (not disposed). - uint8_t* prev_frame_disposed_; // Previous canvas (properly disposed). - int prev_frame_timestamp_; // Previous frame timestamp (milliseconds). - WebPIterator prev_iter_; // Iterator object for previous frame. - int prev_frame_was_keyframe_; // True if previous frame was a keyframe. - int next_frame_; // Index of the next frame to be decoded - // (starting from 1). -}; - -static void DefaultDecoderOptions(WebPAnimDecoderOptions* const dec_options) { - dec_options->color_mode = MODE_RGBA; - dec_options->use_threads = 0; -} - -int WebPAnimDecoderOptionsInitInternal(WebPAnimDecoderOptions* dec_options, - int abi_version) { - if (dec_options == NULL || - WEBP_ABI_IS_INCOMPATIBLE(abi_version, WEBP_DEMUX_ABI_VERSION)) { - return 0; - } - DefaultDecoderOptions(dec_options); - return 1; -} - -static int ApplyDecoderOptions(const WebPAnimDecoderOptions* const dec_options, - WebPAnimDecoder* const dec) { - WEBP_CSP_MODE mode; - WebPDecoderConfig* config = &dec->config_; - assert(dec_options != NULL); - - mode = dec_options->color_mode; - if (mode != MODE_RGBA && mode != MODE_BGRA && - mode != MODE_rgbA && mode != MODE_bgrA) { - return 0; - } - dec->blend_func_ = (mode == MODE_RGBA || mode == MODE_BGRA) - ? &BlendPixelRowNonPremult - : &BlendPixelRowPremult; - WebPInitDecoderConfig(config); - config->output.colorspace = mode; - config->output.is_external_memory = 1; - config->options.use_threads = dec_options->use_threads; - // Note: config->output.u.RGBA is set at the time of decoding each frame. - return 1; -} - -WebPAnimDecoder* WebPAnimDecoderNewInternal( - const WebPData* webp_data, const WebPAnimDecoderOptions* dec_options, - int abi_version) { - WebPAnimDecoderOptions options; - WebPAnimDecoder* dec = NULL; - if (webp_data == NULL || - WEBP_ABI_IS_INCOMPATIBLE(abi_version, WEBP_DEMUX_ABI_VERSION)) { - return NULL; - } - - // Note: calloc() so that the pointer members are initialized to NULL. - dec = (WebPAnimDecoder*)WebPSafeCalloc(1ULL, sizeof(*dec)); - if (dec == NULL) goto Error; - - if (dec_options != NULL) { - options = *dec_options; - } else { - DefaultDecoderOptions(&options); - } - if (!ApplyDecoderOptions(&options, dec)) goto Error; - - dec->demux_ = WebPDemux(webp_data); - if (dec->demux_ == NULL) goto Error; - - dec->info_.canvas_width = WebPDemuxGetI(dec->demux_, WEBP_FF_CANVAS_WIDTH); - dec->info_.canvas_height = WebPDemuxGetI(dec->demux_, WEBP_FF_CANVAS_HEIGHT); - dec->info_.loop_count = WebPDemuxGetI(dec->demux_, WEBP_FF_LOOP_COUNT); - dec->info_.bgcolor = WebPDemuxGetI(dec->demux_, WEBP_FF_BACKGROUND_COLOR); - dec->info_.frame_count = WebPDemuxGetI(dec->demux_, WEBP_FF_FRAME_COUNT); - - { - const int canvas_bytes = - dec->info_.canvas_width * NUM_CHANNELS * dec->info_.canvas_height; - // Note: calloc() because we fill frame with zeroes as well. - dec->curr_frame_ = WebPSafeCalloc(1ULL, canvas_bytes); - if (dec->curr_frame_ == NULL) goto Error; - dec->prev_frame_disposed_ = WebPSafeCalloc(1ULL, canvas_bytes); - if (dec->prev_frame_disposed_ == NULL) goto Error; - } - - WebPAnimDecoderReset(dec); - - return dec; - - Error: - WebPAnimDecoderDelete(dec); - return NULL; -} - -int WebPAnimDecoderGetInfo(const WebPAnimDecoder* dec, WebPAnimInfo* info) { - if (dec == NULL || info == NULL) return 0; - *info = dec->info_; - return 1; -} - -// Returns true if the frame covers the full canvas. -static int IsFullFrame(int width, int height, int canvas_width, - int canvas_height) { - return (width == canvas_width && height == canvas_height); -} - -// Clear the canvas to transparent. -static void ZeroFillCanvas(uint8_t* buf, uint32_t canvas_width, - uint32_t canvas_height) { - memset(buf, 0, canvas_width * NUM_CHANNELS * canvas_height); -} - -// Clear given frame rectangle to transparent. -static void ZeroFillFrameRect(uint8_t* buf, int buf_stride, int x_offset, - int y_offset, int width, int height) { - int j; - assert(width * NUM_CHANNELS <= buf_stride); - buf += y_offset * buf_stride + x_offset * NUM_CHANNELS; - for (j = 0; j < height; ++j) { - memset(buf, 0, width * NUM_CHANNELS); - buf += buf_stride; - } -} - -// Copy width * height pixels from 'src' to 'dst'. -static void CopyCanvas(const uint8_t* src, uint8_t* dst, - uint32_t width, uint32_t height) { - assert(src != NULL && dst != NULL); - memcpy(dst, src, width * NUM_CHANNELS * height); -} - -// Returns true if the current frame is a key-frame. -static int IsKeyFrame(const WebPIterator* const curr, - const WebPIterator* const prev, - int prev_frame_was_key_frame, - int canvas_width, int canvas_height) { - if (curr->frame_num == 1) { - return 1; - } else if ((!curr->has_alpha || curr->blend_method == WEBP_MUX_NO_BLEND) && - IsFullFrame(curr->width, curr->height, - canvas_width, canvas_height)) { - return 1; - } else { - return (prev->dispose_method == WEBP_MUX_DISPOSE_BACKGROUND) && - (IsFullFrame(prev->width, prev->height, canvas_width, - canvas_height) || - prev_frame_was_key_frame); - } -} - - -// Blend a single channel of 'src' over 'dst', given their alpha channel values. -// 'src' and 'dst' are assumed to be NOT pre-multiplied by alpha. -static uint8_t BlendChannelNonPremult(uint32_t src, uint8_t src_a, - uint32_t dst, uint8_t dst_a, - uint32_t scale, int shift) { - const uint8_t src_channel = (src >> shift) & 0xff; - const uint8_t dst_channel = (dst >> shift) & 0xff; - const uint32_t blend_unscaled = src_channel * src_a + dst_channel * dst_a; - assert(blend_unscaled < (1ULL << 32) / scale); - return (blend_unscaled * scale) >> 24; -} - -// Blend 'src' over 'dst' assuming they are NOT pre-multiplied by alpha. -static uint32_t BlendPixelNonPremult(uint32_t src, uint32_t dst) { - const uint8_t src_a = (src >> 24) & 0xff; - - if (src_a == 0) { - return dst; - } else { - const uint8_t dst_a = (dst >> 24) & 0xff; - // This is the approximate integer arithmetic for the actual formula: - // dst_factor_a = (dst_a * (255 - src_a)) / 255. - const uint8_t dst_factor_a = (dst_a * (256 - src_a)) >> 8; - const uint8_t blend_a = src_a + dst_factor_a; - const uint32_t scale = (1UL << 24) / blend_a; - - const uint8_t blend_r = - BlendChannelNonPremult(src, src_a, dst, dst_factor_a, scale, 0); - const uint8_t blend_g = - BlendChannelNonPremult(src, src_a, dst, dst_factor_a, scale, 8); - const uint8_t blend_b = - BlendChannelNonPremult(src, src_a, dst, dst_factor_a, scale, 16); - assert(src_a + dst_factor_a < 256); - - return (blend_r << 0) | - (blend_g << 8) | - (blend_b << 16) | - ((uint32_t)blend_a << 24); - } -} - -// Blend 'num_pixels' in 'src' over 'dst' assuming they are NOT pre-multiplied -// by alpha. -static void BlendPixelRowNonPremult(uint32_t* const src, - const uint32_t* const dst, int num_pixels) { - int i; - for (i = 0; i < num_pixels; ++i) { - const uint8_t src_alpha = (src[i] >> 24) & 0xff; - if (src_alpha != 0xff) { - src[i] = BlendPixelNonPremult(src[i], dst[i]); - } - } -} - -// Individually multiply each channel in 'pix' by 'scale'. -static WEBP_INLINE uint32_t ChannelwiseMultiply(uint32_t pix, uint32_t scale) { - uint32_t mask = 0x00FF00FF; - uint32_t rb = ((pix & mask) * scale) >> 8; - uint32_t ag = ((pix >> 8) & mask) * scale; - return (rb & mask) | (ag & ~mask); -} - -// Blend 'src' over 'dst' assuming they are pre-multiplied by alpha. -static uint32_t BlendPixelPremult(uint32_t src, uint32_t dst) { - const uint8_t src_a = (src >> 24) & 0xff; - return src + ChannelwiseMultiply(dst, 256 - src_a); -} - -// Blend 'num_pixels' in 'src' over 'dst' assuming they are pre-multiplied by -// alpha. -static void BlendPixelRowPremult(uint32_t* const src, const uint32_t* const dst, - int num_pixels) { - int i; - for (i = 0; i < num_pixels; ++i) { - const uint8_t src_alpha = (src[i] >> 24) & 0xff; - if (src_alpha != 0xff) { - src[i] = BlendPixelPremult(src[i], dst[i]); - } - } -} - -// Returns two ranges (<left, width> pairs) at row 'canvas_y', that belong to -// 'src' but not 'dst'. A point range is empty if the corresponding width is 0. -static void FindBlendRangeAtRow(const WebPIterator* const src, - const WebPIterator* const dst, int canvas_y, - int* const left1, int* const width1, - int* const left2, int* const width2) { - const int src_max_x = src->x_offset + src->width; - const int dst_max_x = dst->x_offset + dst->width; - const int dst_max_y = dst->y_offset + dst->height; - assert(canvas_y >= src->y_offset && canvas_y < (src->y_offset + src->height)); - *left1 = -1; - *width1 = 0; - *left2 = -1; - *width2 = 0; - - if (canvas_y < dst->y_offset || canvas_y >= dst_max_y || - src->x_offset >= dst_max_x || src_max_x <= dst->x_offset) { - *left1 = src->x_offset; - *width1 = src->width; - return; - } - - if (src->x_offset < dst->x_offset) { - *left1 = src->x_offset; - *width1 = dst->x_offset - src->x_offset; - } - - if (src_max_x > dst_max_x) { - *left2 = dst_max_x; - *width2 = src_max_x - dst_max_x; - } -} - -int WebPAnimDecoderGetNext(WebPAnimDecoder* dec, - uint8_t** buf_ptr, int* timestamp_ptr) { - WebPIterator iter; - uint32_t width; - uint32_t height; - int is_key_frame; - int timestamp; - BlendRowFunc blend_row; - - if (dec == NULL || buf_ptr == NULL || timestamp_ptr == NULL) return 0; - if (!WebPAnimDecoderHasMoreFrames(dec)) return 0; - - width = dec->info_.canvas_width; - height = dec->info_.canvas_height; - blend_row = dec->blend_func_; - - // Get compressed frame. - if (!WebPDemuxGetFrame(dec->demux_, dec->next_frame_, &iter)) { - return 0; - } - timestamp = dec->prev_frame_timestamp_ + iter.duration; - - // Initialize. - is_key_frame = IsKeyFrame(&iter, &dec->prev_iter_, - dec->prev_frame_was_keyframe_, width, height); - if (is_key_frame) { - ZeroFillCanvas(dec->curr_frame_, width, height); - } else { - CopyCanvas(dec->prev_frame_disposed_, dec->curr_frame_, width, height); - } - - // Decode. - { - const uint8_t* in = iter.fragment.bytes; - const size_t in_size = iter.fragment.size; - const size_t out_offset = - (iter.y_offset * width + iter.x_offset) * NUM_CHANNELS; - WebPDecoderConfig* const config = &dec->config_; - WebPRGBABuffer* const buf = &config->output.u.RGBA; - buf->stride = NUM_CHANNELS * width; - buf->size = buf->stride * iter.height; - buf->rgba = dec->curr_frame_ + out_offset; - - if (WebPDecode(in, in_size, config) != VP8_STATUS_OK) { - goto Error; - } - } - - // During the decoding of current frame, we may have set some pixels to be - // transparent (i.e. alpha < 255). However, the value of each of these - // pixels should have been determined by blending it against the value of - // that pixel in the previous frame if blending method of is WEBP_MUX_BLEND. - if (iter.frame_num > 1 && iter.blend_method == WEBP_MUX_BLEND && - !is_key_frame) { - if (dec->prev_iter_.dispose_method == WEBP_MUX_DISPOSE_NONE) { - int y; - // Blend transparent pixels with pixels in previous canvas. - for (y = 0; y < iter.height; ++y) { - const size_t offset = - (iter.y_offset + y) * width + iter.x_offset; - blend_row((uint32_t*)dec->curr_frame_ + offset, - (uint32_t*)dec->prev_frame_disposed_ + offset, iter.width); - } - } else { - int y; - assert(dec->prev_iter_.dispose_method == WEBP_MUX_DISPOSE_BACKGROUND); - // We need to blend a transparent pixel with its value just after - // initialization. That is, blend it with: - // * Fully transparent pixel if it belongs to prevRect <-- No-op. - // * The pixel in the previous canvas otherwise <-- Need alpha-blending. - for (y = 0; y < iter.height; ++y) { - const int canvas_y = iter.y_offset + y; - int left1, width1, left2, width2; - FindBlendRangeAtRow(&iter, &dec->prev_iter_, canvas_y, &left1, &width1, - &left2, &width2); - if (width1 > 0) { - const size_t offset1 = canvas_y * width + left1; - blend_row((uint32_t*)dec->curr_frame_ + offset1, - (uint32_t*)dec->prev_frame_disposed_ + offset1, width1); - } - if (width2 > 0) { - const size_t offset2 = canvas_y * width + left2; - blend_row((uint32_t*)dec->curr_frame_ + offset2, - (uint32_t*)dec->prev_frame_disposed_ + offset2, width2); - } - } - } - } - - // Update info of the previous frame and dispose it for the next iteration. - dec->prev_frame_timestamp_ = timestamp; - dec->prev_iter_ = iter; - dec->prev_frame_was_keyframe_ = is_key_frame; - CopyCanvas(dec->curr_frame_, dec->prev_frame_disposed_, width, height); - if (dec->prev_iter_.dispose_method == WEBP_MUX_DISPOSE_BACKGROUND) { - ZeroFillFrameRect(dec->prev_frame_disposed_, width * NUM_CHANNELS, - dec->prev_iter_.x_offset, dec->prev_iter_.y_offset, - dec->prev_iter_.width, dec->prev_iter_.height); - } - ++dec->next_frame_; - - // All OK, fill in the values. - *buf_ptr = dec->curr_frame_; - *timestamp_ptr = timestamp; - return 1; - - Error: - WebPDemuxReleaseIterator(&iter); - return 0; -} - -int WebPAnimDecoderHasMoreFrames(const WebPAnimDecoder* dec) { - if (dec == NULL) return 0; - return (dec->next_frame_ <= (int)dec->info_.frame_count); -} - -void WebPAnimDecoderReset(WebPAnimDecoder* dec) { - if (dec != NULL) { - dec->prev_frame_timestamp_ = 0; - memset(&dec->prev_iter_, 0, sizeof(dec->prev_iter_)); - dec->prev_frame_was_keyframe_ = 0; - dec->next_frame_ = 1; - } -} - -const WebPDemuxer* WebPAnimDecoderGetDemuxer(const WebPAnimDecoder* dec) { - if (dec == NULL) return NULL; - return dec->demux_; -} - -void WebPAnimDecoderDelete(WebPAnimDecoder* dec) { - if (dec != NULL) { - WebPDemuxDelete(dec->demux_); - WebPSafeFree(dec->curr_frame_); - WebPSafeFree(dec->prev_frame_disposed_); - WebPSafeFree(dec); - } -} diff --git a/drivers/webp/demux/demux.c b/drivers/webp/demux/demux.c deleted file mode 100644 index df93c5b379..0000000000 --- a/drivers/webp/demux/demux.c +++ /dev/null @@ -1,966 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// WebP container demux. -// - -#ifdef HAVE_CONFIG_H -#include "webp/config.h" -#endif - -#include <assert.h> -#include <stdlib.h> -#include <string.h> - -#include "../utils/utils.h" -#include "webp/decode.h" // WebPGetFeatures -#include "webp/demux.h" -#include "webp/format_constants.h" - -#define DMUX_MAJ_VERSION 0 -#define DMUX_MIN_VERSION 3 -#define DMUX_REV_VERSION 0 - -typedef struct { - size_t start_; // start location of the data - size_t end_; // end location - size_t riff_end_; // riff chunk end location, can be > end_. - size_t buf_size_; // size of the buffer - const uint8_t* buf_; -} MemBuffer; - -typedef struct { - size_t offset_; - size_t size_; -} ChunkData; - -typedef struct Frame { - int x_offset_, y_offset_; - int width_, height_; - int has_alpha_; - int duration_; - WebPMuxAnimDispose dispose_method_; - WebPMuxAnimBlend blend_method_; - int frame_num_; - int complete_; // img_components_ contains a full image. - ChunkData img_components_[2]; // 0=VP8{,L} 1=ALPH - struct Frame* next_; -} Frame; - -typedef struct Chunk { - ChunkData data_; - struct Chunk* next_; -} Chunk; - -struct WebPDemuxer { - MemBuffer mem_; - WebPDemuxState state_; - int is_ext_format_; - uint32_t feature_flags_; - int canvas_width_, canvas_height_; - int loop_count_; - uint32_t bgcolor_; - int num_frames_; - Frame* frames_; - Frame** frames_tail_; - Chunk* chunks_; // non-image chunks - Chunk** chunks_tail_; -}; - -typedef enum { - PARSE_OK, - PARSE_NEED_MORE_DATA, - PARSE_ERROR -} ParseStatus; - -typedef struct ChunkParser { - uint8_t id[4]; - ParseStatus (*parse)(WebPDemuxer* const dmux); - int (*valid)(const WebPDemuxer* const dmux); -} ChunkParser; - -static ParseStatus ParseSingleImage(WebPDemuxer* const dmux); -static ParseStatus ParseVP8X(WebPDemuxer* const dmux); -static int IsValidSimpleFormat(const WebPDemuxer* const dmux); -static int IsValidExtendedFormat(const WebPDemuxer* const dmux); - -static const ChunkParser kMasterChunks[] = { - { { 'V', 'P', '8', ' ' }, ParseSingleImage, IsValidSimpleFormat }, - { { 'V', 'P', '8', 'L' }, ParseSingleImage, IsValidSimpleFormat }, - { { 'V', 'P', '8', 'X' }, ParseVP8X, IsValidExtendedFormat }, - { { '0', '0', '0', '0' }, NULL, NULL }, -}; - -//------------------------------------------------------------------------------ - -int WebPGetDemuxVersion(void) { - return (DMUX_MAJ_VERSION << 16) | (DMUX_MIN_VERSION << 8) | DMUX_REV_VERSION; -} - -// ----------------------------------------------------------------------------- -// MemBuffer - -static int RemapMemBuffer(MemBuffer* const mem, - const uint8_t* data, size_t size) { - if (size < mem->buf_size_) return 0; // can't remap to a shorter buffer! - - mem->buf_ = data; - mem->end_ = mem->buf_size_ = size; - return 1; -} - -static int InitMemBuffer(MemBuffer* const mem, - const uint8_t* data, size_t size) { - memset(mem, 0, sizeof(*mem)); - return RemapMemBuffer(mem, data, size); -} - -// Return the remaining data size available in 'mem'. -static WEBP_INLINE size_t MemDataSize(const MemBuffer* const mem) { - return (mem->end_ - mem->start_); -} - -// Return true if 'size' exceeds the end of the RIFF chunk. -static WEBP_INLINE int SizeIsInvalid(const MemBuffer* const mem, size_t size) { - return (size > mem->riff_end_ - mem->start_); -} - -static WEBP_INLINE void Skip(MemBuffer* const mem, size_t size) { - mem->start_ += size; -} - -static WEBP_INLINE void Rewind(MemBuffer* const mem, size_t size) { - mem->start_ -= size; -} - -static WEBP_INLINE const uint8_t* GetBuffer(MemBuffer* const mem) { - return mem->buf_ + mem->start_; -} - -// Read from 'mem' and skip the read bytes. -static WEBP_INLINE uint8_t ReadByte(MemBuffer* const mem) { - const uint8_t byte = mem->buf_[mem->start_]; - Skip(mem, 1); - return byte; -} - -static WEBP_INLINE int ReadLE16s(MemBuffer* const mem) { - const uint8_t* const data = mem->buf_ + mem->start_; - const int val = GetLE16(data); - Skip(mem, 2); - return val; -} - -static WEBP_INLINE int ReadLE24s(MemBuffer* const mem) { - const uint8_t* const data = mem->buf_ + mem->start_; - const int val = GetLE24(data); - Skip(mem, 3); - return val; -} - -static WEBP_INLINE uint32_t ReadLE32(MemBuffer* const mem) { - const uint8_t* const data = mem->buf_ + mem->start_; - const uint32_t val = GetLE32(data); - Skip(mem, 4); - return val; -} - -// ----------------------------------------------------------------------------- -// Secondary chunk parsing - -static void AddChunk(WebPDemuxer* const dmux, Chunk* const chunk) { - *dmux->chunks_tail_ = chunk; - chunk->next_ = NULL; - dmux->chunks_tail_ = &chunk->next_; -} - -// Add a frame to the end of the list, ensuring the last frame is complete. -// Returns true on success, false otherwise. -static int AddFrame(WebPDemuxer* const dmux, Frame* const frame) { - const Frame* const last_frame = *dmux->frames_tail_; - if (last_frame != NULL && !last_frame->complete_) return 0; - - *dmux->frames_tail_ = frame; - frame->next_ = NULL; - dmux->frames_tail_ = &frame->next_; - return 1; -} - -static void SetFrameInfo(size_t start_offset, size_t size, - int frame_num, int complete, - const WebPBitstreamFeatures* const features, - Frame* const frame) { - frame->img_components_[0].offset_ = start_offset; - frame->img_components_[0].size_ = size; - frame->width_ = features->width; - frame->height_ = features->height; - frame->has_alpha_ |= features->has_alpha; - frame->frame_num_ = frame_num; - frame->complete_ = complete; -} - -// Store image bearing chunks to 'frame'. -static ParseStatus StoreFrame(int frame_num, uint32_t min_size, - MemBuffer* const mem, Frame* const frame) { - int alpha_chunks = 0; - int image_chunks = 0; - int done = (MemDataSize(mem) < min_size); - ParseStatus status = PARSE_OK; - - if (done) return PARSE_NEED_MORE_DATA; - - do { - const size_t chunk_start_offset = mem->start_; - const uint32_t fourcc = ReadLE32(mem); - const uint32_t payload_size = ReadLE32(mem); - const uint32_t payload_size_padded = payload_size + (payload_size & 1); - const size_t payload_available = (payload_size_padded > MemDataSize(mem)) - ? MemDataSize(mem) : payload_size_padded; - const size_t chunk_size = CHUNK_HEADER_SIZE + payload_available; - - if (payload_size > MAX_CHUNK_PAYLOAD) return PARSE_ERROR; - if (SizeIsInvalid(mem, payload_size_padded)) return PARSE_ERROR; - if (payload_size_padded > MemDataSize(mem)) status = PARSE_NEED_MORE_DATA; - - switch (fourcc) { - case MKFOURCC('A', 'L', 'P', 'H'): - if (alpha_chunks == 0) { - ++alpha_chunks; - frame->img_components_[1].offset_ = chunk_start_offset; - frame->img_components_[1].size_ = chunk_size; - frame->has_alpha_ = 1; - frame->frame_num_ = frame_num; - Skip(mem, payload_available); - } else { - goto Done; - } - break; - case MKFOURCC('V', 'P', '8', 'L'): - if (alpha_chunks > 0) return PARSE_ERROR; // VP8L has its own alpha - // fall through - case MKFOURCC('V', 'P', '8', ' '): - if (image_chunks == 0) { - // Extract the bitstream features, tolerating failures when the data - // is incomplete. - WebPBitstreamFeatures features; - const VP8StatusCode vp8_status = - WebPGetFeatures(mem->buf_ + chunk_start_offset, chunk_size, - &features); - if (status == PARSE_NEED_MORE_DATA && - vp8_status == VP8_STATUS_NOT_ENOUGH_DATA) { - return PARSE_NEED_MORE_DATA; - } else if (vp8_status != VP8_STATUS_OK) { - // We have enough data, and yet WebPGetFeatures() failed. - return PARSE_ERROR; - } - ++image_chunks; - SetFrameInfo(chunk_start_offset, chunk_size, frame_num, - status == PARSE_OK, &features, frame); - Skip(mem, payload_available); - } else { - goto Done; - } - break; - Done: - default: - // Restore fourcc/size when moving up one level in parsing. - Rewind(mem, CHUNK_HEADER_SIZE); - done = 1; - break; - } - - if (mem->start_ == mem->riff_end_) { - done = 1; - } else if (MemDataSize(mem) < CHUNK_HEADER_SIZE) { - status = PARSE_NEED_MORE_DATA; - } - } while (!done && status == PARSE_OK); - - return status; -} - -// Creates a new Frame if 'actual_size' is within bounds and 'mem' contains -// enough data ('min_size') to parse the payload. -// Returns PARSE_OK on success with *frame pointing to the new Frame. -// Returns PARSE_NEED_MORE_DATA with insufficient data, PARSE_ERROR otherwise. -static ParseStatus NewFrame(const MemBuffer* const mem, - uint32_t min_size, uint32_t actual_size, - Frame** frame) { - if (SizeIsInvalid(mem, min_size)) return PARSE_ERROR; - if (actual_size < min_size) return PARSE_ERROR; - if (MemDataSize(mem) < min_size) return PARSE_NEED_MORE_DATA; - - *frame = (Frame*)WebPSafeCalloc(1ULL, sizeof(**frame)); - return (*frame == NULL) ? PARSE_ERROR : PARSE_OK; -} - -// Parse a 'ANMF' chunk and any image bearing chunks that immediately follow. -// 'frame_chunk_size' is the previously validated, padded chunk size. -static ParseStatus ParseAnimationFrame( - WebPDemuxer* const dmux, uint32_t frame_chunk_size) { - const int is_animation = !!(dmux->feature_flags_ & ANIMATION_FLAG); - const uint32_t anmf_payload_size = frame_chunk_size - ANMF_CHUNK_SIZE; - int added_frame = 0; - int bits; - MemBuffer* const mem = &dmux->mem_; - Frame* frame; - ParseStatus status = - NewFrame(mem, ANMF_CHUNK_SIZE, frame_chunk_size, &frame); - if (status != PARSE_OK) return status; - - frame->x_offset_ = 2 * ReadLE24s(mem); - frame->y_offset_ = 2 * ReadLE24s(mem); - frame->width_ = 1 + ReadLE24s(mem); - frame->height_ = 1 + ReadLE24s(mem); - frame->duration_ = ReadLE24s(mem); - bits = ReadByte(mem); - frame->dispose_method_ = - (bits & 1) ? WEBP_MUX_DISPOSE_BACKGROUND : WEBP_MUX_DISPOSE_NONE; - frame->blend_method_ = (bits & 2) ? WEBP_MUX_NO_BLEND : WEBP_MUX_BLEND; - if (frame->width_ * (uint64_t)frame->height_ >= MAX_IMAGE_AREA) { - WebPSafeFree(frame); - return PARSE_ERROR; - } - - // Store a frame only if the animation flag is set there is some data for - // this frame is available. - status = StoreFrame(dmux->num_frames_ + 1, anmf_payload_size, mem, frame); - if (status != PARSE_ERROR && is_animation && frame->frame_num_ > 0) { - added_frame = AddFrame(dmux, frame); - if (added_frame) { - ++dmux->num_frames_; - } else { - status = PARSE_ERROR; - } - } - - if (!added_frame) WebPSafeFree(frame); - return status; -} - -// General chunk storage, starting with the header at 'start_offset', allowing -// the user to request the payload via a fourcc string. 'size' includes the -// header and the unpadded payload size. -// Returns true on success, false otherwise. -static int StoreChunk(WebPDemuxer* const dmux, - size_t start_offset, uint32_t size) { - Chunk* const chunk = (Chunk*)WebPSafeCalloc(1ULL, sizeof(*chunk)); - if (chunk == NULL) return 0; - - chunk->data_.offset_ = start_offset; - chunk->data_.size_ = size; - AddChunk(dmux, chunk); - return 1; -} - -// ----------------------------------------------------------------------------- -// Primary chunk parsing - -static ParseStatus ReadHeader(MemBuffer* const mem) { - const size_t min_size = RIFF_HEADER_SIZE + CHUNK_HEADER_SIZE; - uint32_t riff_size; - - // Basic file level validation. - if (MemDataSize(mem) < min_size) return PARSE_NEED_MORE_DATA; - if (memcmp(GetBuffer(mem), "RIFF", CHUNK_SIZE_BYTES) || - memcmp(GetBuffer(mem) + CHUNK_HEADER_SIZE, "WEBP", CHUNK_SIZE_BYTES)) { - return PARSE_ERROR; - } - - riff_size = GetLE32(GetBuffer(mem) + TAG_SIZE); - if (riff_size < CHUNK_HEADER_SIZE) return PARSE_ERROR; - if (riff_size > MAX_CHUNK_PAYLOAD) return PARSE_ERROR; - - // There's no point in reading past the end of the RIFF chunk - mem->riff_end_ = riff_size + CHUNK_HEADER_SIZE; - if (mem->buf_size_ > mem->riff_end_) { - mem->buf_size_ = mem->end_ = mem->riff_end_; - } - - Skip(mem, RIFF_HEADER_SIZE); - return PARSE_OK; -} - -static ParseStatus ParseSingleImage(WebPDemuxer* const dmux) { - const size_t min_size = CHUNK_HEADER_SIZE; - MemBuffer* const mem = &dmux->mem_; - Frame* frame; - ParseStatus status; - int image_added = 0; - - if (dmux->frames_ != NULL) return PARSE_ERROR; - if (SizeIsInvalid(mem, min_size)) return PARSE_ERROR; - if (MemDataSize(mem) < min_size) return PARSE_NEED_MORE_DATA; - - frame = (Frame*)WebPSafeCalloc(1ULL, sizeof(*frame)); - if (frame == NULL) return PARSE_ERROR; - - // For the single image case we allow parsing of a partial frame, but we need - // at least CHUNK_HEADER_SIZE for parsing. - status = StoreFrame(1, CHUNK_HEADER_SIZE, &dmux->mem_, frame); - if (status != PARSE_ERROR) { - const int has_alpha = !!(dmux->feature_flags_ & ALPHA_FLAG); - // Clear any alpha when the alpha flag is missing. - if (!has_alpha && frame->img_components_[1].size_ > 0) { - frame->img_components_[1].offset_ = 0; - frame->img_components_[1].size_ = 0; - frame->has_alpha_ = 0; - } - - // Use the frame width/height as the canvas values for non-vp8x files. - // Also, set ALPHA_FLAG if this is a lossless image with alpha. - if (!dmux->is_ext_format_ && frame->width_ > 0 && frame->height_ > 0) { - dmux->state_ = WEBP_DEMUX_PARSED_HEADER; - dmux->canvas_width_ = frame->width_; - dmux->canvas_height_ = frame->height_; - dmux->feature_flags_ |= frame->has_alpha_ ? ALPHA_FLAG : 0; - } - if (!AddFrame(dmux, frame)) { - status = PARSE_ERROR; // last frame was left incomplete - } else { - image_added = 1; - dmux->num_frames_ = 1; - } - } - - if (!image_added) WebPSafeFree(frame); - return status; -} - -static ParseStatus ParseVP8XChunks(WebPDemuxer* const dmux) { - const int is_animation = !!(dmux->feature_flags_ & ANIMATION_FLAG); - MemBuffer* const mem = &dmux->mem_; - int anim_chunks = 0; - ParseStatus status = PARSE_OK; - - do { - int store_chunk = 1; - const size_t chunk_start_offset = mem->start_; - const uint32_t fourcc = ReadLE32(mem); - const uint32_t chunk_size = ReadLE32(mem); - const uint32_t chunk_size_padded = chunk_size + (chunk_size & 1); - - if (chunk_size > MAX_CHUNK_PAYLOAD) return PARSE_ERROR; - if (SizeIsInvalid(mem, chunk_size_padded)) return PARSE_ERROR; - - switch (fourcc) { - case MKFOURCC('V', 'P', '8', 'X'): { - return PARSE_ERROR; - } - case MKFOURCC('A', 'L', 'P', 'H'): - case MKFOURCC('V', 'P', '8', ' '): - case MKFOURCC('V', 'P', '8', 'L'): { - // check that this isn't an animation (all frames should be in an ANMF). - if (anim_chunks > 0 || is_animation) return PARSE_ERROR; - - Rewind(mem, CHUNK_HEADER_SIZE); - status = ParseSingleImage(dmux); - break; - } - case MKFOURCC('A', 'N', 'I', 'M'): { - if (chunk_size_padded < ANIM_CHUNK_SIZE) return PARSE_ERROR; - - if (MemDataSize(mem) < chunk_size_padded) { - status = PARSE_NEED_MORE_DATA; - } else if (anim_chunks == 0) { - ++anim_chunks; - dmux->bgcolor_ = ReadLE32(mem); - dmux->loop_count_ = ReadLE16s(mem); - Skip(mem, chunk_size_padded - ANIM_CHUNK_SIZE); - } else { - store_chunk = 0; - goto Skip; - } - break; - } - case MKFOURCC('A', 'N', 'M', 'F'): { - if (anim_chunks == 0) return PARSE_ERROR; // 'ANIM' precedes frames. - status = ParseAnimationFrame(dmux, chunk_size_padded); - break; - } - case MKFOURCC('I', 'C', 'C', 'P'): { - store_chunk = !!(dmux->feature_flags_ & ICCP_FLAG); - goto Skip; - } - case MKFOURCC('E', 'X', 'I', 'F'): { - store_chunk = !!(dmux->feature_flags_ & EXIF_FLAG); - goto Skip; - } - case MKFOURCC('X', 'M', 'P', ' '): { - store_chunk = !!(dmux->feature_flags_ & XMP_FLAG); - goto Skip; - } - Skip: - default: { - if (chunk_size_padded <= MemDataSize(mem)) { - if (store_chunk) { - // Store only the chunk header and unpadded size as only the payload - // will be returned to the user. - if (!StoreChunk(dmux, chunk_start_offset, - CHUNK_HEADER_SIZE + chunk_size)) { - return PARSE_ERROR; - } - } - Skip(mem, chunk_size_padded); - } else { - status = PARSE_NEED_MORE_DATA; - } - } - } - - if (mem->start_ == mem->riff_end_) { - break; - } else if (MemDataSize(mem) < CHUNK_HEADER_SIZE) { - status = PARSE_NEED_MORE_DATA; - } - } while (status == PARSE_OK); - - return status; -} - -static ParseStatus ParseVP8X(WebPDemuxer* const dmux) { - MemBuffer* const mem = &dmux->mem_; - uint32_t vp8x_size; - - if (MemDataSize(mem) < CHUNK_HEADER_SIZE) return PARSE_NEED_MORE_DATA; - - dmux->is_ext_format_ = 1; - Skip(mem, TAG_SIZE); // VP8X - vp8x_size = ReadLE32(mem); - if (vp8x_size > MAX_CHUNK_PAYLOAD) return PARSE_ERROR; - if (vp8x_size < VP8X_CHUNK_SIZE) return PARSE_ERROR; - vp8x_size += vp8x_size & 1; - if (SizeIsInvalid(mem, vp8x_size)) return PARSE_ERROR; - if (MemDataSize(mem) < vp8x_size) return PARSE_NEED_MORE_DATA; - - dmux->feature_flags_ = ReadByte(mem); - Skip(mem, 3); // Reserved. - dmux->canvas_width_ = 1 + ReadLE24s(mem); - dmux->canvas_height_ = 1 + ReadLE24s(mem); - if (dmux->canvas_width_ * (uint64_t)dmux->canvas_height_ >= MAX_IMAGE_AREA) { - return PARSE_ERROR; // image final dimension is too large - } - Skip(mem, vp8x_size - VP8X_CHUNK_SIZE); // skip any trailing data. - dmux->state_ = WEBP_DEMUX_PARSED_HEADER; - - if (SizeIsInvalid(mem, CHUNK_HEADER_SIZE)) return PARSE_ERROR; - if (MemDataSize(mem) < CHUNK_HEADER_SIZE) return PARSE_NEED_MORE_DATA; - - return ParseVP8XChunks(dmux); -} - -// ----------------------------------------------------------------------------- -// Format validation - -static int IsValidSimpleFormat(const WebPDemuxer* const dmux) { - const Frame* const frame = dmux->frames_; - if (dmux->state_ == WEBP_DEMUX_PARSING_HEADER) return 1; - - if (dmux->canvas_width_ <= 0 || dmux->canvas_height_ <= 0) return 0; - if (dmux->state_ == WEBP_DEMUX_DONE && frame == NULL) return 0; - - if (frame->width_ <= 0 || frame->height_ <= 0) return 0; - return 1; -} - -// If 'exact' is true, check that the image resolution matches the canvas. -// If 'exact' is false, check that the x/y offsets do not exceed the canvas. -static int CheckFrameBounds(const Frame* const frame, int exact, - int canvas_width, int canvas_height) { - if (exact) { - if (frame->x_offset_ != 0 || frame->y_offset_ != 0) { - return 0; - } - if (frame->width_ != canvas_width || frame->height_ != canvas_height) { - return 0; - } - } else { - if (frame->x_offset_ < 0 || frame->y_offset_ < 0) return 0; - if (frame->width_ + frame->x_offset_ > canvas_width) return 0; - if (frame->height_ + frame->y_offset_ > canvas_height) return 0; - } - return 1; -} - -static int IsValidExtendedFormat(const WebPDemuxer* const dmux) { - const int is_animation = !!(dmux->feature_flags_ & ANIMATION_FLAG); - const int is_fragmented = !!(dmux->feature_flags_ & FRAGMENTS_FLAG); - const Frame* f = dmux->frames_; - - if (dmux->state_ == WEBP_DEMUX_PARSING_HEADER) return 1; - - if (dmux->canvas_width_ <= 0 || dmux->canvas_height_ <= 0) return 0; - if (dmux->loop_count_ < 0) return 0; - if (dmux->state_ == WEBP_DEMUX_DONE && dmux->frames_ == NULL) return 0; - if (is_fragmented) return 0; - - while (f != NULL) { - const int cur_frame_set = f->frame_num_; - int frame_count = 0; - - // Check frame properties. - for (; f != NULL && f->frame_num_ == cur_frame_set; f = f->next_) { - const ChunkData* const image = f->img_components_; - const ChunkData* const alpha = f->img_components_ + 1; - - if (!is_animation && f->frame_num_ > 1) return 0; - - if (f->complete_) { - if (alpha->size_ == 0 && image->size_ == 0) return 0; - // Ensure alpha precedes image bitstream. - if (alpha->size_ > 0 && alpha->offset_ > image->offset_) { - return 0; - } - - if (f->width_ <= 0 || f->height_ <= 0) return 0; - } else { - // There shouldn't be a partial frame in a complete file. - if (dmux->state_ == WEBP_DEMUX_DONE) return 0; - - // Ensure alpha precedes image bitstream. - if (alpha->size_ > 0 && image->size_ > 0 && - alpha->offset_ > image->offset_) { - return 0; - } - // There shouldn't be any frames after an incomplete one. - if (f->next_ != NULL) return 0; - } - - if (f->width_ > 0 && f->height_ > 0 && - !CheckFrameBounds(f, !is_animation, - dmux->canvas_width_, dmux->canvas_height_)) { - return 0; - } - - ++frame_count; - } - } - return 1; -} - -// ----------------------------------------------------------------------------- -// WebPDemuxer object - -static void InitDemux(WebPDemuxer* const dmux, const MemBuffer* const mem) { - dmux->state_ = WEBP_DEMUX_PARSING_HEADER; - dmux->loop_count_ = 1; - dmux->bgcolor_ = 0xFFFFFFFF; // White background by default. - dmux->canvas_width_ = -1; - dmux->canvas_height_ = -1; - dmux->frames_tail_ = &dmux->frames_; - dmux->chunks_tail_ = &dmux->chunks_; - dmux->mem_ = *mem; -} - -static ParseStatus CreateRawImageDemuxer(MemBuffer* const mem, - WebPDemuxer** demuxer) { - WebPBitstreamFeatures features; - const VP8StatusCode status = - WebPGetFeatures(mem->buf_, mem->buf_size_, &features); - *demuxer = NULL; - if (status != VP8_STATUS_OK) { - return (status == VP8_STATUS_NOT_ENOUGH_DATA) ? PARSE_NEED_MORE_DATA - : PARSE_ERROR; - } - - { - WebPDemuxer* const dmux = (WebPDemuxer*)WebPSafeCalloc(1ULL, sizeof(*dmux)); - Frame* const frame = (Frame*)WebPSafeCalloc(1ULL, sizeof(*frame)); - if (dmux == NULL || frame == NULL) goto Error; - InitDemux(dmux, mem); - SetFrameInfo(0, mem->buf_size_, 1 /*frame_num*/, 1 /*complete*/, &features, - frame); - if (!AddFrame(dmux, frame)) goto Error; - dmux->state_ = WEBP_DEMUX_DONE; - dmux->canvas_width_ = frame->width_; - dmux->canvas_height_ = frame->height_; - dmux->feature_flags_ |= frame->has_alpha_ ? ALPHA_FLAG : 0; - dmux->num_frames_ = 1; - assert(IsValidSimpleFormat(dmux)); - *demuxer = dmux; - return PARSE_OK; - - Error: - WebPSafeFree(dmux); - WebPSafeFree(frame); - return PARSE_ERROR; - } -} - -WebPDemuxer* WebPDemuxInternal(const WebPData* data, int allow_partial, - WebPDemuxState* state, int version) { - const ChunkParser* parser; - int partial; - ParseStatus status = PARSE_ERROR; - MemBuffer mem; - WebPDemuxer* dmux; - - if (state != NULL) *state = WEBP_DEMUX_PARSE_ERROR; - - if (WEBP_ABI_IS_INCOMPATIBLE(version, WEBP_DEMUX_ABI_VERSION)) return NULL; - if (data == NULL || data->bytes == NULL || data->size == 0) return NULL; - - if (!InitMemBuffer(&mem, data->bytes, data->size)) return NULL; - status = ReadHeader(&mem); - if (status != PARSE_OK) { - // If parsing of the webp file header fails attempt to handle a raw - // VP8/VP8L frame. Note 'allow_partial' is ignored in this case. - if (status == PARSE_ERROR) { - status = CreateRawImageDemuxer(&mem, &dmux); - if (status == PARSE_OK) { - if (state != NULL) *state = WEBP_DEMUX_DONE; - return dmux; - } - } - if (state != NULL) { - *state = (status == PARSE_NEED_MORE_DATA) ? WEBP_DEMUX_PARSING_HEADER - : WEBP_DEMUX_PARSE_ERROR; - } - return NULL; - } - - partial = (mem.buf_size_ < mem.riff_end_); - if (!allow_partial && partial) return NULL; - - dmux = (WebPDemuxer*)WebPSafeCalloc(1ULL, sizeof(*dmux)); - if (dmux == NULL) return NULL; - InitDemux(dmux, &mem); - - status = PARSE_ERROR; - for (parser = kMasterChunks; parser->parse != NULL; ++parser) { - if (!memcmp(parser->id, GetBuffer(&dmux->mem_), TAG_SIZE)) { - status = parser->parse(dmux); - if (status == PARSE_OK) dmux->state_ = WEBP_DEMUX_DONE; - if (status == PARSE_NEED_MORE_DATA && !partial) status = PARSE_ERROR; - if (status != PARSE_ERROR && !parser->valid(dmux)) status = PARSE_ERROR; - if (status == PARSE_ERROR) dmux->state_ = WEBP_DEMUX_PARSE_ERROR; - break; - } - } - if (state != NULL) *state = dmux->state_; - - if (status == PARSE_ERROR) { - WebPDemuxDelete(dmux); - return NULL; - } - return dmux; -} - -void WebPDemuxDelete(WebPDemuxer* dmux) { - Chunk* c; - Frame* f; - if (dmux == NULL) return; - - for (f = dmux->frames_; f != NULL;) { - Frame* const cur_frame = f; - f = f->next_; - WebPSafeFree(cur_frame); - } - for (c = dmux->chunks_; c != NULL;) { - Chunk* const cur_chunk = c; - c = c->next_; - WebPSafeFree(cur_chunk); - } - WebPSafeFree(dmux); -} - -// ----------------------------------------------------------------------------- - -uint32_t WebPDemuxGetI(const WebPDemuxer* dmux, WebPFormatFeature feature) { - if (dmux == NULL) return 0; - - switch (feature) { - case WEBP_FF_FORMAT_FLAGS: return dmux->feature_flags_; - case WEBP_FF_CANVAS_WIDTH: return (uint32_t)dmux->canvas_width_; - case WEBP_FF_CANVAS_HEIGHT: return (uint32_t)dmux->canvas_height_; - case WEBP_FF_LOOP_COUNT: return (uint32_t)dmux->loop_count_; - case WEBP_FF_BACKGROUND_COLOR: return dmux->bgcolor_; - case WEBP_FF_FRAME_COUNT: return (uint32_t)dmux->num_frames_; - } - return 0; -} - -// ----------------------------------------------------------------------------- -// Frame iteration - -static const Frame* GetFrame(const WebPDemuxer* const dmux, int frame_num) { - const Frame* f; - for (f = dmux->frames_; f != NULL; f = f->next_) { - if (frame_num == f->frame_num_) break; - } - return f; -} - -static const uint8_t* GetFramePayload(const uint8_t* const mem_buf, - const Frame* const frame, - size_t* const data_size) { - *data_size = 0; - if (frame != NULL) { - const ChunkData* const image = frame->img_components_; - const ChunkData* const alpha = frame->img_components_ + 1; - size_t start_offset = image->offset_; - *data_size = image->size_; - - // if alpha exists it precedes image, update the size allowing for - // intervening chunks. - if (alpha->size_ > 0) { - const size_t inter_size = (image->offset_ > 0) - ? image->offset_ - (alpha->offset_ + alpha->size_) - : 0; - start_offset = alpha->offset_; - *data_size += alpha->size_ + inter_size; - } - return mem_buf + start_offset; - } - return NULL; -} - -// Create a whole 'frame' from VP8 (+ alpha) or lossless. -static int SynthesizeFrame(const WebPDemuxer* const dmux, - const Frame* const frame, - WebPIterator* const iter) { - const uint8_t* const mem_buf = dmux->mem_.buf_; - size_t payload_size = 0; - const uint8_t* const payload = GetFramePayload(mem_buf, frame, &payload_size); - if (payload == NULL) return 0; - assert(frame != NULL); - - iter->frame_num = frame->frame_num_; - iter->num_frames = dmux->num_frames_; - iter->x_offset = frame->x_offset_; - iter->y_offset = frame->y_offset_; - iter->width = frame->width_; - iter->height = frame->height_; - iter->has_alpha = frame->has_alpha_; - iter->duration = frame->duration_; - iter->dispose_method = frame->dispose_method_; - iter->blend_method = frame->blend_method_; - iter->complete = frame->complete_; - iter->fragment.bytes = payload; - iter->fragment.size = payload_size; - return 1; -} - -static int SetFrame(int frame_num, WebPIterator* const iter) { - const Frame* frame; - const WebPDemuxer* const dmux = (WebPDemuxer*)iter->private_; - if (dmux == NULL || frame_num < 0) return 0; - if (frame_num > dmux->num_frames_) return 0; - if (frame_num == 0) frame_num = dmux->num_frames_; - - frame = GetFrame(dmux, frame_num); - if (frame == NULL) return 0; - - return SynthesizeFrame(dmux, frame, iter); -} - -int WebPDemuxGetFrame(const WebPDemuxer* dmux, int frame, WebPIterator* iter) { - if (iter == NULL) return 0; - - memset(iter, 0, sizeof(*iter)); - iter->private_ = (void*)dmux; - return SetFrame(frame, iter); -} - -int WebPDemuxNextFrame(WebPIterator* iter) { - if (iter == NULL) return 0; - return SetFrame(iter->frame_num + 1, iter); -} - -int WebPDemuxPrevFrame(WebPIterator* iter) { - if (iter == NULL) return 0; - if (iter->frame_num <= 1) return 0; - return SetFrame(iter->frame_num - 1, iter); -} - -void WebPDemuxReleaseIterator(WebPIterator* iter) { - (void)iter; -} - -// ----------------------------------------------------------------------------- -// Chunk iteration - -static int ChunkCount(const WebPDemuxer* const dmux, const char fourcc[4]) { - const uint8_t* const mem_buf = dmux->mem_.buf_; - const Chunk* c; - int count = 0; - for (c = dmux->chunks_; c != NULL; c = c->next_) { - const uint8_t* const header = mem_buf + c->data_.offset_; - if (!memcmp(header, fourcc, TAG_SIZE)) ++count; - } - return count; -} - -static const Chunk* GetChunk(const WebPDemuxer* const dmux, - const char fourcc[4], int chunk_num) { - const uint8_t* const mem_buf = dmux->mem_.buf_; - const Chunk* c; - int count = 0; - for (c = dmux->chunks_; c != NULL; c = c->next_) { - const uint8_t* const header = mem_buf + c->data_.offset_; - if (!memcmp(header, fourcc, TAG_SIZE)) ++count; - if (count == chunk_num) break; - } - return c; -} - -static int SetChunk(const char fourcc[4], int chunk_num, - WebPChunkIterator* const iter) { - const WebPDemuxer* const dmux = (WebPDemuxer*)iter->private_; - int count; - - if (dmux == NULL || fourcc == NULL || chunk_num < 0) return 0; - count = ChunkCount(dmux, fourcc); - if (count == 0) return 0; - if (chunk_num == 0) chunk_num = count; - - if (chunk_num <= count) { - const uint8_t* const mem_buf = dmux->mem_.buf_; - const Chunk* const chunk = GetChunk(dmux, fourcc, chunk_num); - iter->chunk.bytes = mem_buf + chunk->data_.offset_ + CHUNK_HEADER_SIZE; - iter->chunk.size = chunk->data_.size_ - CHUNK_HEADER_SIZE; - iter->num_chunks = count; - iter->chunk_num = chunk_num; - return 1; - } - return 0; -} - -int WebPDemuxGetChunk(const WebPDemuxer* dmux, - const char fourcc[4], int chunk_num, - WebPChunkIterator* iter) { - if (iter == NULL) return 0; - - memset(iter, 0, sizeof(*iter)); - iter->private_ = (void*)dmux; - return SetChunk(fourcc, chunk_num, iter); -} - -int WebPDemuxNextChunk(WebPChunkIterator* iter) { - if (iter != NULL) { - const char* const fourcc = - (const char*)iter->chunk.bytes - CHUNK_HEADER_SIZE; - return SetChunk(fourcc, iter->chunk_num + 1, iter); - } - return 0; -} - -int WebPDemuxPrevChunk(WebPChunkIterator* iter) { - if (iter != NULL && iter->chunk_num > 1) { - const char* const fourcc = - (const char*)iter->chunk.bytes - CHUNK_HEADER_SIZE; - return SetChunk(fourcc, iter->chunk_num - 1, iter); - } - return 0; -} - -void WebPDemuxReleaseChunkIterator(WebPChunkIterator* iter) { - (void)iter; -} - diff --git a/drivers/webp/dsp/alpha_processing.c b/drivers/webp/dsp/alpha_processing.c deleted file mode 100644 index 1716cace8d..0000000000 --- a/drivers/webp/dsp/alpha_processing.c +++ /dev/null @@ -1,383 +0,0 @@ -// Copyright 2013 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Utilities for processing transparent channel. -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> -#include "./dsp.h" - -// Tables can be faster on some platform but incur some extra binary size (~2k). -// #define USE_TABLES_FOR_ALPHA_MULT - -// ----------------------------------------------------------------------------- - -#define MFIX 24 // 24bit fixed-point arithmetic -#define HALF ((1u << MFIX) >> 1) -#define KINV_255 ((1u << MFIX) / 255u) - -static uint32_t Mult(uint8_t x, uint32_t mult) { - const uint32_t v = (x * mult + HALF) >> MFIX; - assert(v <= 255); // <- 24bit precision is enough to ensure that. - return v; -} - -#ifdef USE_TABLES_FOR_ALPHA_MULT - -static const uint32_t kMultTables[2][256] = { - { // (255u << MFIX) / alpha - 0x00000000, 0xff000000, 0x7f800000, 0x55000000, 0x3fc00000, 0x33000000, - 0x2a800000, 0x246db6db, 0x1fe00000, 0x1c555555, 0x19800000, 0x172e8ba2, - 0x15400000, 0x139d89d8, 0x1236db6d, 0x11000000, 0x0ff00000, 0x0f000000, - 0x0e2aaaaa, 0x0d6bca1a, 0x0cc00000, 0x0c249249, 0x0b9745d1, 0x0b1642c8, - 0x0aa00000, 0x0a333333, 0x09cec4ec, 0x0971c71c, 0x091b6db6, 0x08cb08d3, - 0x08800000, 0x0839ce73, 0x07f80000, 0x07ba2e8b, 0x07800000, 0x07492492, - 0x07155555, 0x06e45306, 0x06b5e50d, 0x0689d89d, 0x06600000, 0x063831f3, - 0x06124924, 0x05ee23b8, 0x05cba2e8, 0x05aaaaaa, 0x058b2164, 0x056cefa8, - 0x05500000, 0x05343eb1, 0x05199999, 0x05000000, 0x04e76276, 0x04cfb2b7, - 0x04b8e38e, 0x04a2e8ba, 0x048db6db, 0x0479435e, 0x04658469, 0x045270d0, - 0x04400000, 0x042e29f7, 0x041ce739, 0x040c30c3, 0x03fc0000, 0x03ec4ec4, - 0x03dd1745, 0x03ce540f, 0x03c00000, 0x03b21642, 0x03a49249, 0x03976fc6, - 0x038aaaaa, 0x037e3f1f, 0x03722983, 0x03666666, 0x035af286, 0x034fcace, - 0x0344ec4e, 0x033a5440, 0x03300000, 0x0325ed09, 0x031c18f9, 0x0312818a, - 0x03092492, 0x03000000, 0x02f711dc, 0x02ee5846, 0x02e5d174, 0x02dd7baf, - 0x02d55555, 0x02cd5cd5, 0x02c590b2, 0x02bdef7b, 0x02b677d4, 0x02af286b, - 0x02a80000, 0x02a0fd5c, 0x029a1f58, 0x029364d9, 0x028ccccc, 0x0286562d, - 0x02800000, 0x0279c952, 0x0273b13b, 0x026db6db, 0x0267d95b, 0x026217ec, - 0x025c71c7, 0x0256e62a, 0x0251745d, 0x024c1bac, 0x0246db6d, 0x0241b2f9, - 0x023ca1af, 0x0237a6f4, 0x0232c234, 0x022df2df, 0x02293868, 0x02249249, - 0x02200000, 0x021b810e, 0x021714fb, 0x0212bb51, 0x020e739c, 0x020a3d70, - 0x02061861, 0x02020408, 0x01fe0000, 0x01fa0be8, 0x01f62762, 0x01f25213, - 0x01ee8ba2, 0x01ead3ba, 0x01e72a07, 0x01e38e38, 0x01e00000, 0x01dc7f10, - 0x01d90b21, 0x01d5a3e9, 0x01d24924, 0x01cefa8d, 0x01cbb7e3, 0x01c880e5, - 0x01c55555, 0x01c234f7, 0x01bf1f8f, 0x01bc14e5, 0x01b914c1, 0x01b61eed, - 0x01b33333, 0x01b05160, 0x01ad7943, 0x01aaaaaa, 0x01a7e567, 0x01a5294a, - 0x01a27627, 0x019fcbd2, 0x019d2a20, 0x019a90e7, 0x01980000, 0x01957741, - 0x0192f684, 0x01907da4, 0x018e0c7c, 0x018ba2e8, 0x018940c5, 0x0186e5f0, - 0x01849249, 0x018245ae, 0x01800000, 0x017dc11f, 0x017b88ee, 0x0179574e, - 0x01772c23, 0x01750750, 0x0172e8ba, 0x0170d045, 0x016ebdd7, 0x016cb157, - 0x016aaaaa, 0x0168a9b9, 0x0166ae6a, 0x0164b8a7, 0x0162c859, 0x0160dd67, - 0x015ef7bd, 0x015d1745, 0x015b3bea, 0x01596596, 0x01579435, 0x0155c7b4, - 0x01540000, 0x01523d03, 0x01507eae, 0x014ec4ec, 0x014d0fac, 0x014b5edc, - 0x0149b26c, 0x01480a4a, 0x01466666, 0x0144c6af, 0x01432b16, 0x0141938b, - 0x01400000, 0x013e7063, 0x013ce4a9, 0x013b5cc0, 0x0139d89d, 0x01385830, - 0x0136db6d, 0x01356246, 0x0133ecad, 0x01327a97, 0x01310bf6, 0x012fa0be, - 0x012e38e3, 0x012cd459, 0x012b7315, 0x012a150a, 0x0128ba2e, 0x01276276, - 0x01260dd6, 0x0124bc44, 0x01236db6, 0x01222222, 0x0120d97c, 0x011f93bc, - 0x011e50d7, 0x011d10c4, 0x011bd37a, 0x011a98ef, 0x0119611a, 0x01182bf2, - 0x0116f96f, 0x0115c988, 0x01149c34, 0x0113716a, 0x01124924, 0x01112358, - 0x01100000, 0x010edf12, 0x010dc087, 0x010ca458, 0x010b8a7d, 0x010a72f0, - 0x01095da8, 0x01084a9f, 0x010739ce, 0x01062b2e, 0x01051eb8, 0x01041465, - 0x01030c30, 0x01020612, 0x01010204, 0x01000000 }, - { // alpha * KINV_255 - 0x00000000, 0x00010101, 0x00020202, 0x00030303, 0x00040404, 0x00050505, - 0x00060606, 0x00070707, 0x00080808, 0x00090909, 0x000a0a0a, 0x000b0b0b, - 0x000c0c0c, 0x000d0d0d, 0x000e0e0e, 0x000f0f0f, 0x00101010, 0x00111111, - 0x00121212, 0x00131313, 0x00141414, 0x00151515, 0x00161616, 0x00171717, - 0x00181818, 0x00191919, 0x001a1a1a, 0x001b1b1b, 0x001c1c1c, 0x001d1d1d, - 0x001e1e1e, 0x001f1f1f, 0x00202020, 0x00212121, 0x00222222, 0x00232323, - 0x00242424, 0x00252525, 0x00262626, 0x00272727, 0x00282828, 0x00292929, - 0x002a2a2a, 0x002b2b2b, 0x002c2c2c, 0x002d2d2d, 0x002e2e2e, 0x002f2f2f, - 0x00303030, 0x00313131, 0x00323232, 0x00333333, 0x00343434, 0x00353535, - 0x00363636, 0x00373737, 0x00383838, 0x00393939, 0x003a3a3a, 0x003b3b3b, - 0x003c3c3c, 0x003d3d3d, 0x003e3e3e, 0x003f3f3f, 0x00404040, 0x00414141, - 0x00424242, 0x00434343, 0x00444444, 0x00454545, 0x00464646, 0x00474747, - 0x00484848, 0x00494949, 0x004a4a4a, 0x004b4b4b, 0x004c4c4c, 0x004d4d4d, - 0x004e4e4e, 0x004f4f4f, 0x00505050, 0x00515151, 0x00525252, 0x00535353, - 0x00545454, 0x00555555, 0x00565656, 0x00575757, 0x00585858, 0x00595959, - 0x005a5a5a, 0x005b5b5b, 0x005c5c5c, 0x005d5d5d, 0x005e5e5e, 0x005f5f5f, - 0x00606060, 0x00616161, 0x00626262, 0x00636363, 0x00646464, 0x00656565, - 0x00666666, 0x00676767, 0x00686868, 0x00696969, 0x006a6a6a, 0x006b6b6b, - 0x006c6c6c, 0x006d6d6d, 0x006e6e6e, 0x006f6f6f, 0x00707070, 0x00717171, - 0x00727272, 0x00737373, 0x00747474, 0x00757575, 0x00767676, 0x00777777, - 0x00787878, 0x00797979, 0x007a7a7a, 0x007b7b7b, 0x007c7c7c, 0x007d7d7d, - 0x007e7e7e, 0x007f7f7f, 0x00808080, 0x00818181, 0x00828282, 0x00838383, - 0x00848484, 0x00858585, 0x00868686, 0x00878787, 0x00888888, 0x00898989, - 0x008a8a8a, 0x008b8b8b, 0x008c8c8c, 0x008d8d8d, 0x008e8e8e, 0x008f8f8f, - 0x00909090, 0x00919191, 0x00929292, 0x00939393, 0x00949494, 0x00959595, - 0x00969696, 0x00979797, 0x00989898, 0x00999999, 0x009a9a9a, 0x009b9b9b, - 0x009c9c9c, 0x009d9d9d, 0x009e9e9e, 0x009f9f9f, 0x00a0a0a0, 0x00a1a1a1, - 0x00a2a2a2, 0x00a3a3a3, 0x00a4a4a4, 0x00a5a5a5, 0x00a6a6a6, 0x00a7a7a7, - 0x00a8a8a8, 0x00a9a9a9, 0x00aaaaaa, 0x00ababab, 0x00acacac, 0x00adadad, - 0x00aeaeae, 0x00afafaf, 0x00b0b0b0, 0x00b1b1b1, 0x00b2b2b2, 0x00b3b3b3, - 0x00b4b4b4, 0x00b5b5b5, 0x00b6b6b6, 0x00b7b7b7, 0x00b8b8b8, 0x00b9b9b9, - 0x00bababa, 0x00bbbbbb, 0x00bcbcbc, 0x00bdbdbd, 0x00bebebe, 0x00bfbfbf, - 0x00c0c0c0, 0x00c1c1c1, 0x00c2c2c2, 0x00c3c3c3, 0x00c4c4c4, 0x00c5c5c5, - 0x00c6c6c6, 0x00c7c7c7, 0x00c8c8c8, 0x00c9c9c9, 0x00cacaca, 0x00cbcbcb, - 0x00cccccc, 0x00cdcdcd, 0x00cecece, 0x00cfcfcf, 0x00d0d0d0, 0x00d1d1d1, - 0x00d2d2d2, 0x00d3d3d3, 0x00d4d4d4, 0x00d5d5d5, 0x00d6d6d6, 0x00d7d7d7, - 0x00d8d8d8, 0x00d9d9d9, 0x00dadada, 0x00dbdbdb, 0x00dcdcdc, 0x00dddddd, - 0x00dedede, 0x00dfdfdf, 0x00e0e0e0, 0x00e1e1e1, 0x00e2e2e2, 0x00e3e3e3, - 0x00e4e4e4, 0x00e5e5e5, 0x00e6e6e6, 0x00e7e7e7, 0x00e8e8e8, 0x00e9e9e9, - 0x00eaeaea, 0x00ebebeb, 0x00ececec, 0x00ededed, 0x00eeeeee, 0x00efefef, - 0x00f0f0f0, 0x00f1f1f1, 0x00f2f2f2, 0x00f3f3f3, 0x00f4f4f4, 0x00f5f5f5, - 0x00f6f6f6, 0x00f7f7f7, 0x00f8f8f8, 0x00f9f9f9, 0x00fafafa, 0x00fbfbfb, - 0x00fcfcfc, 0x00fdfdfd, 0x00fefefe, 0x00ffffff } -}; - -static WEBP_INLINE uint32_t GetScale(uint32_t a, int inverse) { - return kMultTables[!inverse][a]; -} - -#else - -static WEBP_INLINE uint32_t GetScale(uint32_t a, int inverse) { - return inverse ? (255u << MFIX) / a : a * KINV_255; -} - -#endif // USE_TABLES_FOR_ALPHA_MULT - -void WebPMultARGBRowC(uint32_t* const ptr, int width, int inverse) { - int x; - for (x = 0; x < width; ++x) { - const uint32_t argb = ptr[x]; - if (argb < 0xff000000u) { // alpha < 255 - if (argb <= 0x00ffffffu) { // alpha == 0 - ptr[x] = 0; - } else { - const uint32_t alpha = (argb >> 24) & 0xff; - const uint32_t scale = GetScale(alpha, inverse); - uint32_t out = argb & 0xff000000u; - out |= Mult(argb >> 0, scale) << 0; - out |= Mult(argb >> 8, scale) << 8; - out |= Mult(argb >> 16, scale) << 16; - ptr[x] = out; - } - } - } -} - -void WebPMultRowC(uint8_t* const ptr, const uint8_t* const alpha, - int width, int inverse) { - int x; - for (x = 0; x < width; ++x) { - const uint32_t a = alpha[x]; - if (a != 255) { - if (a == 0) { - ptr[x] = 0; - } else { - const uint32_t scale = GetScale(a, inverse); - ptr[x] = Mult(ptr[x], scale); - } - } - } -} - -#undef KINV_255 -#undef HALF -#undef MFIX - -void (*WebPMultARGBRow)(uint32_t* const ptr, int width, int inverse); -void (*WebPMultRow)(uint8_t* const ptr, const uint8_t* const alpha, - int width, int inverse); - -//------------------------------------------------------------------------------ -// Generic per-plane calls - -void WebPMultARGBRows(uint8_t* ptr, int stride, int width, int num_rows, - int inverse) { - int n; - for (n = 0; n < num_rows; ++n) { - WebPMultARGBRow((uint32_t*)ptr, width, inverse); - ptr += stride; - } -} - -void WebPMultRows(uint8_t* ptr, int stride, - const uint8_t* alpha, int alpha_stride, - int width, int num_rows, int inverse) { - int n; - for (n = 0; n < num_rows; ++n) { - WebPMultRow(ptr, alpha, width, inverse); - ptr += stride; - alpha += alpha_stride; - } -} - -//------------------------------------------------------------------------------ -// Premultiplied modes - -// non dithered-modes - -// (x * a * 32897) >> 23 is bit-wise equivalent to (int)(x * a / 255.) -// for all 8bit x or a. For bit-wise equivalence to (int)(x * a / 255. + .5), -// one can use instead: (x * a * 65793 + (1 << 23)) >> 24 -#if 1 // (int)(x * a / 255.) -#define MULTIPLIER(a) ((a) * 32897U) -#define PREMULTIPLY(x, m) (((x) * (m)) >> 23) -#else // (int)(x * a / 255. + .5) -#define MULTIPLIER(a) ((a) * 65793U) -#define PREMULTIPLY(x, m) (((x) * (m) + (1U << 23)) >> 24) -#endif - -static void ApplyAlphaMultiply(uint8_t* rgba, int alpha_first, - int w, int h, int stride) { - while (h-- > 0) { - uint8_t* const rgb = rgba + (alpha_first ? 1 : 0); - const uint8_t* const alpha = rgba + (alpha_first ? 0 : 3); - int i; - for (i = 0; i < w; ++i) { - const uint32_t a = alpha[4 * i]; - if (a != 0xff) { - const uint32_t mult = MULTIPLIER(a); - rgb[4 * i + 0] = PREMULTIPLY(rgb[4 * i + 0], mult); - rgb[4 * i + 1] = PREMULTIPLY(rgb[4 * i + 1], mult); - rgb[4 * i + 2] = PREMULTIPLY(rgb[4 * i + 2], mult); - } - } - rgba += stride; - } -} -#undef MULTIPLIER -#undef PREMULTIPLY - -// rgbA4444 - -#define MULTIPLIER(a) ((a) * 0x1111) // 0x1111 ~= (1 << 16) / 15 - -static WEBP_INLINE uint8_t dither_hi(uint8_t x) { - return (x & 0xf0) | (x >> 4); -} - -static WEBP_INLINE uint8_t dither_lo(uint8_t x) { - return (x & 0x0f) | (x << 4); -} - -static WEBP_INLINE uint8_t multiply(uint8_t x, uint32_t m) { - return (x * m) >> 16; -} - -static WEBP_INLINE void ApplyAlphaMultiply4444(uint8_t* rgba4444, - int w, int h, int stride, - int rg_byte_pos /* 0 or 1 */) { - while (h-- > 0) { - int i; - for (i = 0; i < w; ++i) { - const uint32_t rg = rgba4444[2 * i + rg_byte_pos]; - const uint32_t ba = rgba4444[2 * i + (rg_byte_pos ^ 1)]; - const uint8_t a = ba & 0x0f; - const uint32_t mult = MULTIPLIER(a); - const uint8_t r = multiply(dither_hi(rg), mult); - const uint8_t g = multiply(dither_lo(rg), mult); - const uint8_t b = multiply(dither_hi(ba), mult); - rgba4444[2 * i + rg_byte_pos] = (r & 0xf0) | ((g >> 4) & 0x0f); - rgba4444[2 * i + (rg_byte_pos ^ 1)] = (b & 0xf0) | a; - } - rgba4444 += stride; - } -} -#undef MULTIPLIER - -static void ApplyAlphaMultiply_16b(uint8_t* rgba4444, - int w, int h, int stride) { -#ifdef WEBP_SWAP_16BIT_CSP - ApplyAlphaMultiply4444(rgba4444, w, h, stride, 1); -#else - ApplyAlphaMultiply4444(rgba4444, w, h, stride, 0); -#endif -} - -static int DispatchAlpha(const uint8_t* alpha, int alpha_stride, - int width, int height, - uint8_t* dst, int dst_stride) { - uint32_t alpha_mask = 0xff; - int i, j; - - for (j = 0; j < height; ++j) { - for (i = 0; i < width; ++i) { - const uint32_t alpha_value = alpha[i]; - dst[4 * i] = alpha_value; - alpha_mask &= alpha_value; - } - alpha += alpha_stride; - dst += dst_stride; - } - - return (alpha_mask != 0xff); -} - -static void DispatchAlphaToGreen(const uint8_t* alpha, int alpha_stride, - int width, int height, - uint32_t* dst, int dst_stride) { - int i, j; - for (j = 0; j < height; ++j) { - for (i = 0; i < width; ++i) { - dst[i] = alpha[i] << 8; // leave A/R/B channels zero'd. - } - alpha += alpha_stride; - dst += dst_stride; - } -} - -static int ExtractAlpha(const uint8_t* argb, int argb_stride, - int width, int height, - uint8_t* alpha, int alpha_stride) { - uint8_t alpha_mask = 0xff; - int i, j; - - for (j = 0; j < height; ++j) { - for (i = 0; i < width; ++i) { - const uint8_t alpha_value = argb[4 * i]; - alpha[i] = alpha_value; - alpha_mask &= alpha_value; - } - argb += argb_stride; - alpha += alpha_stride; - } - return (alpha_mask == 0xff); -} - -void (*WebPApplyAlphaMultiply)(uint8_t*, int, int, int, int); -void (*WebPApplyAlphaMultiply4444)(uint8_t*, int, int, int); -int (*WebPDispatchAlpha)(const uint8_t*, int, int, int, uint8_t*, int); -void (*WebPDispatchAlphaToGreen)(const uint8_t*, int, int, int, uint32_t*, int); -int (*WebPExtractAlpha)(const uint8_t*, int, int, int, uint8_t*, int); - -//------------------------------------------------------------------------------ -// Init function - -extern void WebPInitAlphaProcessingMIPSdspR2(void); -extern void WebPInitAlphaProcessingSSE2(void); -extern void WebPInitAlphaProcessingSSE41(void); - -static volatile VP8CPUInfo alpha_processing_last_cpuinfo_used = - (VP8CPUInfo)&alpha_processing_last_cpuinfo_used; - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitAlphaProcessing(void) { - if (alpha_processing_last_cpuinfo_used == VP8GetCPUInfo) return; - - WebPMultARGBRow = WebPMultARGBRowC; - WebPMultRow = WebPMultRowC; - WebPApplyAlphaMultiply = ApplyAlphaMultiply; - WebPApplyAlphaMultiply4444 = ApplyAlphaMultiply_16b; - WebPDispatchAlpha = DispatchAlpha; - WebPDispatchAlphaToGreen = DispatchAlphaToGreen; - WebPExtractAlpha = ExtractAlpha; - - // If defined, use CPUInfo() to overwrite some pointers with faster versions. - if (VP8GetCPUInfo != NULL) { -#if defined(WEBP_USE_SSE2) - if (VP8GetCPUInfo(kSSE2)) { - WebPInitAlphaProcessingSSE2(); -#if defined(WEBP_USE_SSE41) - if (VP8GetCPUInfo(kSSE4_1)) { - WebPInitAlphaProcessingSSE41(); - } -#endif - } -#endif -#if defined(WEBP_USE_MIPS_DSP_R2) - if (VP8GetCPUInfo(kMIPSdspR2)) { - WebPInitAlphaProcessingMIPSdspR2(); - } -#endif - } - alpha_processing_last_cpuinfo_used = VP8GetCPUInfo; -} diff --git a/drivers/webp/dsp/alpha_processing_mips_dsp_r2.c b/drivers/webp/dsp/alpha_processing_mips_dsp_r2.c deleted file mode 100644 index c631d78905..0000000000 --- a/drivers/webp/dsp/alpha_processing_mips_dsp_r2.c +++ /dev/null @@ -1,141 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Utilities for processing transparent channel. -// -// Author(s): Branimir Vasic (branimir.vasic@imgtec.com) -// Djordje Pesut (djordje.pesut@imgtec.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_MIPS_DSP_R2) - -static int DispatchAlpha(const uint8_t* alpha, int alpha_stride, - int width, int height, - uint8_t* dst, int dst_stride) { - uint32_t alpha_mask = 0xffffffff; - int i, j, temp0; - - for (j = 0; j < height; ++j) { - uint8_t* pdst = dst; - const uint8_t* palpha = alpha; - for (i = 0; i < (width >> 2); ++i) { - int temp1, temp2, temp3; - - __asm__ volatile ( - "ulw %[temp0], 0(%[palpha]) \n\t" - "addiu %[palpha], %[palpha], 4 \n\t" - "addiu %[pdst], %[pdst], 16 \n\t" - "srl %[temp1], %[temp0], 8 \n\t" - "srl %[temp2], %[temp0], 16 \n\t" - "srl %[temp3], %[temp0], 24 \n\t" - "and %[alpha_mask], %[alpha_mask], %[temp0] \n\t" - "sb %[temp0], -16(%[pdst]) \n\t" - "sb %[temp1], -12(%[pdst]) \n\t" - "sb %[temp2], -8(%[pdst]) \n\t" - "sb %[temp3], -4(%[pdst]) \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [palpha]"+r"(palpha), [pdst]"+r"(pdst), - [alpha_mask]"+r"(alpha_mask) - : - : "memory" - ); - } - - for (i = 0; i < (width & 3); ++i) { - __asm__ volatile ( - "lbu %[temp0], 0(%[palpha]) \n\t" - "addiu %[palpha], %[palpha], 1 \n\t" - "sb %[temp0], 0(%[pdst]) \n\t" - "and %[alpha_mask], %[alpha_mask], %[temp0] \n\t" - "addiu %[pdst], %[pdst], 4 \n\t" - : [temp0]"=&r"(temp0), [palpha]"+r"(palpha), [pdst]"+r"(pdst), - [alpha_mask]"+r"(alpha_mask) - : - : "memory" - ); - } - alpha += alpha_stride; - dst += dst_stride; - } - - __asm__ volatile ( - "ext %[temp0], %[alpha_mask], 0, 16 \n\t" - "srl %[alpha_mask], %[alpha_mask], 16 \n\t" - "and %[alpha_mask], %[alpha_mask], %[temp0] \n\t" - "ext %[temp0], %[alpha_mask], 0, 8 \n\t" - "srl %[alpha_mask], %[alpha_mask], 8 \n\t" - "and %[alpha_mask], %[alpha_mask], %[temp0] \n\t" - : [temp0]"=&r"(temp0), [alpha_mask]"+r"(alpha_mask) - : - ); - - return (alpha_mask != 0xff); -} - -static void MultARGBRow(uint32_t* const ptr, int width, int inverse) { - int x; - const uint32_t c_00ffffff = 0x00ffffffu; - const uint32_t c_ff000000 = 0xff000000u; - const uint32_t c_8000000 = 0x00800000u; - const uint32_t c_8000080 = 0x00800080u; - for (x = 0; x < width; ++x) { - const uint32_t argb = ptr[x]; - if (argb < 0xff000000u) { // alpha < 255 - if (argb <= 0x00ffffffu) { // alpha == 0 - ptr[x] = 0; - } else { - int temp0, temp1, temp2, temp3, alpha; - __asm__ volatile ( - "srl %[alpha], %[argb], 24 \n\t" - "replv.qb %[temp0], %[alpha] \n\t" - "and %[temp0], %[temp0], %[c_00ffffff] \n\t" - "beqz %[inverse], 0f \n\t" - "divu $zero, %[c_ff000000], %[alpha] \n\t" - "mflo %[temp0] \n\t" - "0: \n\t" - "andi %[temp1], %[argb], 0xff \n\t" - "ext %[temp2], %[argb], 8, 8 \n\t" - "ext %[temp3], %[argb], 16, 8 \n\t" - "mul %[temp1], %[temp1], %[temp0] \n\t" - "mul %[temp2], %[temp2], %[temp0] \n\t" - "mul %[temp3], %[temp3], %[temp0] \n\t" - "precrq.ph.w %[temp1], %[temp2], %[temp1] \n\t" - "addu %[temp3], %[temp3], %[c_8000000] \n\t" - "addu %[temp1], %[temp1], %[c_8000080] \n\t" - "precrq.ph.w %[temp3], %[argb], %[temp3] \n\t" - "precrq.qb.ph %[temp1], %[temp3], %[temp1] \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [alpha]"=&r"(alpha) - : [inverse]"r"(inverse), [c_00ffffff]"r"(c_00ffffff), - [c_8000000]"r"(c_8000000), [c_8000080]"r"(c_8000080), - [c_ff000000]"r"(c_ff000000), [argb]"r"(argb) - : "memory", "hi", "lo" - ); - ptr[x] = temp1; - } - } - } -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void WebPInitAlphaProcessingMIPSdspR2(void); - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitAlphaProcessingMIPSdspR2(void) { - WebPDispatchAlpha = DispatchAlpha; - WebPMultARGBRow = MultARGBRow; -} - -#else // !WEBP_USE_MIPS_DSP_R2 - -WEBP_DSP_INIT_STUB(WebPInitAlphaProcessingMIPSdspR2) - -#endif // WEBP_USE_MIPS_DSP_R2 diff --git a/drivers/webp/dsp/alpha_processing_sse2.c b/drivers/webp/dsp/alpha_processing_sse2.c deleted file mode 100644 index 5acb481dcd..0000000000 --- a/drivers/webp/dsp/alpha_processing_sse2.c +++ /dev/null @@ -1,298 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Utilities for processing transparent channel. -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_SSE2) -#include <emmintrin.h> - -//------------------------------------------------------------------------------ - -static int DispatchAlpha(const uint8_t* alpha, int alpha_stride, - int width, int height, - uint8_t* dst, int dst_stride) { - // alpha_and stores an 'and' operation of all the alpha[] values. The final - // value is not 0xff if any of the alpha[] is not equal to 0xff. - uint32_t alpha_and = 0xff; - int i, j; - const __m128i zero = _mm_setzero_si128(); - const __m128i rgb_mask = _mm_set1_epi32(0xffffff00u); // to preserve RGB - const __m128i all_0xff = _mm_set_epi32(0, 0, ~0u, ~0u); - __m128i all_alphas = all_0xff; - - // We must be able to access 3 extra bytes after the last written byte - // 'dst[4 * width - 4]', because we don't know if alpha is the first or the - // last byte of the quadruplet. - const int limit = (width - 1) & ~7; - - for (j = 0; j < height; ++j) { - __m128i* out = (__m128i*)dst; - for (i = 0; i < limit; i += 8) { - // load 8 alpha bytes - const __m128i a0 = _mm_loadl_epi64((const __m128i*)&alpha[i]); - const __m128i a1 = _mm_unpacklo_epi8(a0, zero); - const __m128i a2_lo = _mm_unpacklo_epi16(a1, zero); - const __m128i a2_hi = _mm_unpackhi_epi16(a1, zero); - // load 8 dst pixels (32 bytes) - const __m128i b0_lo = _mm_loadu_si128(out + 0); - const __m128i b0_hi = _mm_loadu_si128(out + 1); - // mask dst alpha values - const __m128i b1_lo = _mm_and_si128(b0_lo, rgb_mask); - const __m128i b1_hi = _mm_and_si128(b0_hi, rgb_mask); - // combine - const __m128i b2_lo = _mm_or_si128(b1_lo, a2_lo); - const __m128i b2_hi = _mm_or_si128(b1_hi, a2_hi); - // store - _mm_storeu_si128(out + 0, b2_lo); - _mm_storeu_si128(out + 1, b2_hi); - // accumulate eight alpha 'and' in parallel - all_alphas = _mm_and_si128(all_alphas, a0); - out += 2; - } - for (; i < width; ++i) { - const uint32_t alpha_value = alpha[i]; - dst[4 * i] = alpha_value; - alpha_and &= alpha_value; - } - alpha += alpha_stride; - dst += dst_stride; - } - // Combine the eight alpha 'and' into a 8-bit mask. - alpha_and &= _mm_movemask_epi8(_mm_cmpeq_epi8(all_alphas, all_0xff)); - return (alpha_and != 0xff); -} - -static void DispatchAlphaToGreen(const uint8_t* alpha, int alpha_stride, - int width, int height, - uint32_t* dst, int dst_stride) { - int i, j; - const __m128i zero = _mm_setzero_si128(); - const int limit = width & ~15; - for (j = 0; j < height; ++j) { - for (i = 0; i < limit; i += 16) { // process 16 alpha bytes - const __m128i a0 = _mm_loadu_si128((const __m128i*)&alpha[i]); - const __m128i a1 = _mm_unpacklo_epi8(zero, a0); // note the 'zero' first! - const __m128i b1 = _mm_unpackhi_epi8(zero, a0); - const __m128i a2_lo = _mm_unpacklo_epi16(a1, zero); - const __m128i b2_lo = _mm_unpacklo_epi16(b1, zero); - const __m128i a2_hi = _mm_unpackhi_epi16(a1, zero); - const __m128i b2_hi = _mm_unpackhi_epi16(b1, zero); - _mm_storeu_si128((__m128i*)&dst[i + 0], a2_lo); - _mm_storeu_si128((__m128i*)&dst[i + 4], a2_hi); - _mm_storeu_si128((__m128i*)&dst[i + 8], b2_lo); - _mm_storeu_si128((__m128i*)&dst[i + 12], b2_hi); - } - for (; i < width; ++i) dst[i] = alpha[i] << 8; - alpha += alpha_stride; - dst += dst_stride; - } -} - -static int ExtractAlpha(const uint8_t* argb, int argb_stride, - int width, int height, - uint8_t* alpha, int alpha_stride) { - // alpha_and stores an 'and' operation of all the alpha[] values. The final - // value is not 0xff if any of the alpha[] is not equal to 0xff. - uint32_t alpha_and = 0xff; - int i, j; - const __m128i a_mask = _mm_set1_epi32(0xffu); // to preserve alpha - const __m128i all_0xff = _mm_set_epi32(0, 0, ~0u, ~0u); - __m128i all_alphas = all_0xff; - - // We must be able to access 3 extra bytes after the last written byte - // 'src[4 * width - 4]', because we don't know if alpha is the first or the - // last byte of the quadruplet. - const int limit = (width - 1) & ~7; - - for (j = 0; j < height; ++j) { - const __m128i* src = (const __m128i*)argb; - for (i = 0; i < limit; i += 8) { - // load 32 argb bytes - const __m128i a0 = _mm_loadu_si128(src + 0); - const __m128i a1 = _mm_loadu_si128(src + 1); - const __m128i b0 = _mm_and_si128(a0, a_mask); - const __m128i b1 = _mm_and_si128(a1, a_mask); - const __m128i c0 = _mm_packs_epi32(b0, b1); - const __m128i d0 = _mm_packus_epi16(c0, c0); - // store - _mm_storel_epi64((__m128i*)&alpha[i], d0); - // accumulate eight alpha 'and' in parallel - all_alphas = _mm_and_si128(all_alphas, d0); - src += 2; - } - for (; i < width; ++i) { - const uint32_t alpha_value = argb[4 * i]; - alpha[i] = alpha_value; - alpha_and &= alpha_value; - } - argb += argb_stride; - alpha += alpha_stride; - } - // Combine the eight alpha 'and' into a 8-bit mask. - alpha_and &= _mm_movemask_epi8(_mm_cmpeq_epi8(all_alphas, all_0xff)); - return (alpha_and == 0xff); -} - -//------------------------------------------------------------------------------ -// Non-dither premultiplied modes - -#define MULTIPLIER(a) ((a) * 0x8081) -#define PREMULTIPLY(x, m) (((x) * (m)) >> 23) - -// We can't use a 'const int' for the SHUFFLE value, because it has to be an -// immediate in the _mm_shufflexx_epi16() instruction. We really a macro here. -#define APPLY_ALPHA(RGBX, SHUFFLE, MASK, MULT) do { \ - const __m128i argb0 = _mm_loadl_epi64((__m128i*)&(RGBX)); \ - const __m128i argb1 = _mm_unpacklo_epi8(argb0, zero); \ - const __m128i alpha0 = _mm_and_si128(argb1, MASK); \ - const __m128i alpha1 = _mm_shufflelo_epi16(alpha0, SHUFFLE); \ - const __m128i alpha2 = _mm_shufflehi_epi16(alpha1, SHUFFLE); \ - /* alpha2 = [0 a0 a0 a0][0 a1 a1 a1] */ \ - const __m128i scale0 = _mm_mullo_epi16(alpha2, MULT); \ - const __m128i scale1 = _mm_mulhi_epu16(alpha2, MULT); \ - const __m128i argb2 = _mm_mulhi_epu16(argb1, scale0); \ - const __m128i argb3 = _mm_mullo_epi16(argb1, scale1); \ - const __m128i argb4 = _mm_adds_epu16(argb2, argb3); \ - const __m128i argb5 = _mm_srli_epi16(argb4, 7); \ - const __m128i argb6 = _mm_or_si128(argb5, alpha0); \ - const __m128i argb7 = _mm_packus_epi16(argb6, zero); \ - _mm_storel_epi64((__m128i*)&(RGBX), argb7); \ -} while (0) - -static void ApplyAlphaMultiply(uint8_t* rgba, int alpha_first, - int w, int h, int stride) { - const __m128i zero = _mm_setzero_si128(); - const int kSpan = 2; - const int w2 = w & ~(kSpan - 1); - while (h-- > 0) { - uint32_t* const rgbx = (uint32_t*)rgba; - int i; - if (!alpha_first) { - const __m128i kMask = _mm_set_epi16(0xff, 0, 0, 0, 0xff, 0, 0, 0); - const __m128i kMult = - _mm_set_epi16(0, 0x8081, 0x8081, 0x8081, 0, 0x8081, 0x8081, 0x8081); - for (i = 0; i < w2; i += kSpan) { - APPLY_ALPHA(rgbx[i], _MM_SHUFFLE(0, 3, 3, 3), kMask, kMult); - } - } else { - const __m128i kMask = _mm_set_epi16(0, 0, 0, 0xff, 0, 0, 0, 0xff); - const __m128i kMult = - _mm_set_epi16(0x8081, 0x8081, 0x8081, 0, 0x8081, 0x8081, 0x8081, 0); - for (i = 0; i < w2; i += kSpan) { - APPLY_ALPHA(rgbx[i], _MM_SHUFFLE(0, 0, 0, 3), kMask, kMult); - } - } - // Finish with left-overs. - for (; i < w; ++i) { - uint8_t* const rgb = rgba + (alpha_first ? 1 : 0); - const uint8_t* const alpha = rgba + (alpha_first ? 0 : 3); - const uint32_t a = alpha[4 * i]; - if (a != 0xff) { - const uint32_t mult = MULTIPLIER(a); - rgb[4 * i + 0] = PREMULTIPLY(rgb[4 * i + 0], mult); - rgb[4 * i + 1] = PREMULTIPLY(rgb[4 * i + 1], mult); - rgb[4 * i + 2] = PREMULTIPLY(rgb[4 * i + 2], mult); - } - } - rgba += stride; - } -} -#undef MULTIPLIER -#undef PREMULTIPLY - -// ----------------------------------------------------------------------------- -// Apply alpha value to rows - -// We use: kINV255 = (1 << 24) / 255 = 0x010101 -// So: a * kINV255 = (a << 16) | [(a << 8) | a] -// -> _mm_mulhi_epu16() takes care of the (a<<16) part, -// and _mm_mullo_epu16(a * 0x0101,...) takes care of the "(a << 8) | a" one. - -static void MultARGBRow(uint32_t* const ptr, int width, int inverse) { - int x = 0; - if (!inverse) { - const int kSpan = 2; - const __m128i zero = _mm_setzero_si128(); - const __m128i kRound = - _mm_set_epi16(0, 1 << 7, 1 << 7, 1 << 7, 0, 1 << 7, 1 << 7, 1 << 7); - const __m128i kMult = - _mm_set_epi16(0, 0x0101, 0x0101, 0x0101, 0, 0x0101, 0x0101, 0x0101); - const __m128i kOne64 = _mm_set_epi16(1u << 8, 0, 0, 0, 1u << 8, 0, 0, 0); - const int w2 = width & ~(kSpan - 1); - for (x = 0; x < w2; x += kSpan) { - const __m128i argb0 = _mm_loadl_epi64((__m128i*)&ptr[x]); - const __m128i argb1 = _mm_unpacklo_epi8(argb0, zero); - const __m128i tmp0 = _mm_shufflelo_epi16(argb1, _MM_SHUFFLE(3, 3, 3, 3)); - const __m128i tmp1 = _mm_shufflehi_epi16(tmp0, _MM_SHUFFLE(3, 3, 3, 3)); - const __m128i tmp2 = _mm_srli_epi64(tmp1, 16); - const __m128i scale0 = _mm_mullo_epi16(tmp1, kMult); - const __m128i scale1 = _mm_or_si128(tmp2, kOne64); - const __m128i argb2 = _mm_mulhi_epu16(argb1, scale0); - const __m128i argb3 = _mm_mullo_epi16(argb1, scale1); - const __m128i argb4 = _mm_adds_epu16(argb2, argb3); - const __m128i argb5 = _mm_adds_epu16(argb4, kRound); - const __m128i argb6 = _mm_srli_epi16(argb5, 8); - const __m128i argb7 = _mm_packus_epi16(argb6, zero); - _mm_storel_epi64((__m128i*)&ptr[x], argb7); - } - } - width -= x; - if (width > 0) WebPMultARGBRowC(ptr + x, width, inverse); -} - -static void MultRow(uint8_t* const ptr, const uint8_t* const alpha, - int width, int inverse) { - int x = 0; - if (!inverse) { - const int kSpan = 8; - const __m128i zero = _mm_setzero_si128(); - const __m128i kRound = _mm_set1_epi16(1 << 7); - const int w2 = width & ~(kSpan - 1); - for (x = 0; x < w2; x += kSpan) { - const __m128i v0 = _mm_loadl_epi64((__m128i*)&ptr[x]); - const __m128i v1 = _mm_unpacklo_epi8(v0, zero); - const __m128i alpha0 = _mm_loadl_epi64((const __m128i*)&alpha[x]); - const __m128i alpha1 = _mm_unpacklo_epi8(alpha0, zero); - const __m128i alpha2 = _mm_unpacklo_epi8(alpha0, alpha0); - const __m128i v2 = _mm_mulhi_epu16(v1, alpha2); - const __m128i v3 = _mm_mullo_epi16(v1, alpha1); - const __m128i v4 = _mm_adds_epu16(v2, v3); - const __m128i v5 = _mm_adds_epu16(v4, kRound); - const __m128i v6 = _mm_srli_epi16(v5, 8); - const __m128i v7 = _mm_packus_epi16(v6, zero); - _mm_storel_epi64((__m128i*)&ptr[x], v7); - } - } - width -= x; - if (width > 0) WebPMultRowC(ptr + x, alpha + x, width, inverse); -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void WebPInitAlphaProcessingSSE2(void); - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitAlphaProcessingSSE2(void) { - WebPMultARGBRow = MultARGBRow; - WebPMultRow = MultRow; - WebPApplyAlphaMultiply = ApplyAlphaMultiply; - WebPDispatchAlpha = DispatchAlpha; - WebPDispatchAlphaToGreen = DispatchAlphaToGreen; - WebPExtractAlpha = ExtractAlpha; -} - -#else // !WEBP_USE_SSE2 - -WEBP_DSP_INIT_STUB(WebPInitAlphaProcessingSSE2) - -#endif // WEBP_USE_SSE2 diff --git a/drivers/webp/dsp/alpha_processing_sse41.c b/drivers/webp/dsp/alpha_processing_sse41.c deleted file mode 100644 index 986fde94ed..0000000000 --- a/drivers/webp/dsp/alpha_processing_sse41.c +++ /dev/null @@ -1,92 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Utilities for processing transparent channel, SSE4.1 variant. -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_SSE41) - -#include <smmintrin.h> - -//------------------------------------------------------------------------------ - -static int ExtractAlpha(const uint8_t* argb, int argb_stride, - int width, int height, - uint8_t* alpha, int alpha_stride) { - // alpha_and stores an 'and' operation of all the alpha[] values. The final - // value is not 0xff if any of the alpha[] is not equal to 0xff. - uint32_t alpha_and = 0xff; - int i, j; - const __m128i all_0xff = _mm_set1_epi32(~0u); - __m128i all_alphas = all_0xff; - - // We must be able to access 3 extra bytes after the last written byte - // 'src[4 * width - 4]', because we don't know if alpha is the first or the - // last byte of the quadruplet. - const int limit = (width - 1) & ~15; - const __m128i kCstAlpha0 = _mm_set_epi8(-1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, 12, 8, 4, 0); - const __m128i kCstAlpha1 = _mm_set_epi8(-1, -1, -1, -1, -1, -1, -1, -1, - 12, 8, 4, 0, -1, -1, -1, -1); - const __m128i kCstAlpha2 = _mm_set_epi8(-1, -1, -1, -1, 12, 8, 4, 0, - -1, -1, -1, -1, -1, -1, -1, -1); - const __m128i kCstAlpha3 = _mm_set_epi8(12, 8, 4, 0, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1); - for (j = 0; j < height; ++j) { - const __m128i* src = (const __m128i*)argb; - for (i = 0; i < limit; i += 16) { - // load 64 argb bytes - const __m128i a0 = _mm_loadu_si128(src + 0); - const __m128i a1 = _mm_loadu_si128(src + 1); - const __m128i a2 = _mm_loadu_si128(src + 2); - const __m128i a3 = _mm_loadu_si128(src + 3); - const __m128i b0 = _mm_shuffle_epi8(a0, kCstAlpha0); - const __m128i b1 = _mm_shuffle_epi8(a1, kCstAlpha1); - const __m128i b2 = _mm_shuffle_epi8(a2, kCstAlpha2); - const __m128i b3 = _mm_shuffle_epi8(a3, kCstAlpha3); - const __m128i c0 = _mm_or_si128(b0, b1); - const __m128i c1 = _mm_or_si128(b2, b3); - const __m128i d0 = _mm_or_si128(c0, c1); - // store - _mm_storeu_si128((__m128i*)&alpha[i], d0); - // accumulate sixteen alpha 'and' in parallel - all_alphas = _mm_and_si128(all_alphas, d0); - src += 4; - } - for (; i < width; ++i) { - const uint32_t alpha_value = argb[4 * i]; - alpha[i] = alpha_value; - alpha_and &= alpha_value; - } - argb += argb_stride; - alpha += alpha_stride; - } - // Combine the sixteen alpha 'and' into an 8-bit mask. - alpha_and |= 0xff00u; // pretend the upper bits [8..15] were tested ok. - alpha_and &= _mm_movemask_epi8(_mm_cmpeq_epi8(all_alphas, all_0xff)); - return (alpha_and == 0xffffu); -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void WebPInitAlphaProcessingSSE41(void); - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitAlphaProcessingSSE41(void) { - WebPExtractAlpha = ExtractAlpha; -} - -#else // !WEBP_USE_SSE41 - -WEBP_DSP_INIT_STUB(WebPInitAlphaProcessingSSE41) - -#endif // WEBP_USE_SSE41 diff --git a/drivers/webp/dsp/argb.c b/drivers/webp/dsp/argb.c deleted file mode 100644 index cc1f9a96c3..0000000000 --- a/drivers/webp/dsp/argb.c +++ /dev/null @@ -1,68 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// ARGB making functions. -// -// Author: Djordje Pesut (djordje.pesut@imgtec.com) - -#include "./dsp.h" - -static WEBP_INLINE uint32_t MakeARGB32(int a, int r, int g, int b) { - return (((uint32_t)a << 24) | (r << 16) | (g << 8) | b); -} - -static void PackARGB(const uint8_t* a, const uint8_t* r, const uint8_t* g, - const uint8_t* b, int len, uint32_t* out) { - int i; - for (i = 0; i < len; ++i) { - out[i] = MakeARGB32(a[4 * i], r[4 * i], g[4 * i], b[4 * i]); - } -} - -static void PackRGB(const uint8_t* r, const uint8_t* g, const uint8_t* b, - int len, int step, uint32_t* out) { - int i, offset = 0; - for (i = 0; i < len; ++i) { - out[i] = MakeARGB32(0xff, r[offset], g[offset], b[offset]); - offset += step; - } -} - -void (*VP8PackARGB)(const uint8_t*, const uint8_t*, const uint8_t*, - const uint8_t*, int, uint32_t*); -void (*VP8PackRGB)(const uint8_t*, const uint8_t*, const uint8_t*, - int, int, uint32_t*); - -extern void VP8EncDspARGBInitMIPSdspR2(void); -extern void VP8EncDspARGBInitSSE2(void); - -static volatile VP8CPUInfo argb_last_cpuinfo_used = - (VP8CPUInfo)&argb_last_cpuinfo_used; - -WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspARGBInit(void) { - if (argb_last_cpuinfo_used == VP8GetCPUInfo) return; - - VP8PackARGB = PackARGB; - VP8PackRGB = PackRGB; - - // If defined, use CPUInfo() to overwrite some pointers with faster versions. - if (VP8GetCPUInfo != NULL) { -#if defined(WEBP_USE_SSE2) - if (VP8GetCPUInfo(kSSE2)) { - VP8EncDspARGBInitSSE2(); - } -#endif -#if defined(WEBP_USE_MIPS_DSP_R2) - if (VP8GetCPUInfo(kMIPSdspR2)) { - VP8EncDspARGBInitMIPSdspR2(); - } -#endif - } - argb_last_cpuinfo_used = VP8GetCPUInfo; -} diff --git a/drivers/webp/dsp/argb_mips_dsp_r2.c b/drivers/webp/dsp/argb_mips_dsp_r2.c deleted file mode 100644 index af65acb8ff..0000000000 --- a/drivers/webp/dsp/argb_mips_dsp_r2.c +++ /dev/null @@ -1,110 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// ARGB making functions (mips version). -// -// Author: Djordje Pesut (djordje.pesut@imgtec.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_MIPS_DSP_R2) - -static void PackARGB(const uint8_t* a, const uint8_t* r, const uint8_t* g, - const uint8_t* b, int len, uint32_t* out) { - int temp0, temp1, temp2, temp3, offset; - const int rest = len & 1; - const uint32_t* const loop_end = out + len - rest; - const int step = 4; - __asm__ volatile ( - "xor %[offset], %[offset], %[offset] \n\t" - "beq %[loop_end], %[out], 0f \n\t" - "2: \n\t" - "lbux %[temp0], %[offset](%[a]) \n\t" - "lbux %[temp1], %[offset](%[r]) \n\t" - "lbux %[temp2], %[offset](%[g]) \n\t" - "lbux %[temp3], %[offset](%[b]) \n\t" - "ins %[temp1], %[temp0], 16, 16 \n\t" - "ins %[temp3], %[temp2], 16, 16 \n\t" - "addiu %[out], %[out], 4 \n\t" - "precr.qb.ph %[temp0], %[temp1], %[temp3] \n\t" - "sw %[temp0], -4(%[out]) \n\t" - "addu %[offset], %[offset], %[step] \n\t" - "bne %[loop_end], %[out], 2b \n\t" - "0: \n\t" - "beq %[rest], $zero, 1f \n\t" - "lbux %[temp0], %[offset](%[a]) \n\t" - "lbux %[temp1], %[offset](%[r]) \n\t" - "lbux %[temp2], %[offset](%[g]) \n\t" - "lbux %[temp3], %[offset](%[b]) \n\t" - "ins %[temp1], %[temp0], 16, 16 \n\t" - "ins %[temp3], %[temp2], 16, 16 \n\t" - "precr.qb.ph %[temp0], %[temp1], %[temp3] \n\t" - "sw %[temp0], 0(%[out]) \n\t" - "1: \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [offset]"=&r"(offset), [out]"+&r"(out) - : [a]"r"(a), [r]"r"(r), [g]"r"(g), [b]"r"(b), [step]"r"(step), - [loop_end]"r"(loop_end), [rest]"r"(rest) - : "memory" - ); -} - -static void PackRGB(const uint8_t* r, const uint8_t* g, const uint8_t* b, - int len, int step, uint32_t* out) { - int temp0, temp1, temp2, offset; - const int rest = len & 1; - const int a = 0xff; - const uint32_t* const loop_end = out + len - rest; - __asm__ volatile ( - "xor %[offset], %[offset], %[offset] \n\t" - "beq %[loop_end], %[out], 0f \n\t" - "2: \n\t" - "lbux %[temp0], %[offset](%[r]) \n\t" - "lbux %[temp1], %[offset](%[g]) \n\t" - "lbux %[temp2], %[offset](%[b]) \n\t" - "ins %[temp0], %[a], 16, 16 \n\t" - "ins %[temp2], %[temp1], 16, 16 \n\t" - "addiu %[out], %[out], 4 \n\t" - "precr.qb.ph %[temp0], %[temp0], %[temp2] \n\t" - "sw %[temp0], -4(%[out]) \n\t" - "addu %[offset], %[offset], %[step] \n\t" - "bne %[loop_end], %[out], 2b \n\t" - "0: \n\t" - "beq %[rest], $zero, 1f \n\t" - "lbux %[temp0], %[offset](%[r]) \n\t" - "lbux %[temp1], %[offset](%[g]) \n\t" - "lbux %[temp2], %[offset](%[b]) \n\t" - "ins %[temp0], %[a], 16, 16 \n\t" - "ins %[temp2], %[temp1], 16, 16 \n\t" - "precr.qb.ph %[temp0], %[temp0], %[temp2] \n\t" - "sw %[temp0], 0(%[out]) \n\t" - "1: \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [offset]"=&r"(offset), [out]"+&r"(out) - : [a]"r"(a), [r]"r"(r), [g]"r"(g), [b]"r"(b), [step]"r"(step), - [loop_end]"r"(loop_end), [rest]"r"(rest) - : "memory" - ); -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8EncDspARGBInitMIPSdspR2(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspARGBInitMIPSdspR2(void) { - VP8PackARGB = PackARGB; - VP8PackRGB = PackRGB; -} - -#else // !WEBP_USE_MIPS_DSP_R2 - -WEBP_DSP_INIT_STUB(VP8EncDspARGBInitMIPSdspR2) - -#endif // WEBP_USE_MIPS_DSP_R2 diff --git a/drivers/webp/dsp/argb_sse2.c b/drivers/webp/dsp/argb_sse2.c deleted file mode 100644 index afcb1957e7..0000000000 --- a/drivers/webp/dsp/argb_sse2.c +++ /dev/null @@ -1,67 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// ARGB making functions (SSE2 version). -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_SSE2) - -#include <assert.h> -#include <emmintrin.h> -#include <string.h> - -static WEBP_INLINE uint32_t MakeARGB32(int a, int r, int g, int b) { - return (((uint32_t)a << 24) | (r << 16) | (g << 8) | b); -} - -static void PackARGB(const uint8_t* a, const uint8_t* r, const uint8_t* g, - const uint8_t* b, int len, uint32_t* out) { - if (g == r + 1) { // RGBA input order. Need to swap R and B. - int i = 0; - const int len_max = len & ~3; // max length processed in main loop - const __m128i red_blue_mask = _mm_set1_epi32(0x00ff00ffu); - assert(b == r + 2); - assert(a == r + 3); - for (; i < len_max; i += 4) { - const __m128i A = _mm_loadu_si128((const __m128i*)(r + 4 * i)); - const __m128i B = _mm_and_si128(A, red_blue_mask); // R 0 B 0 - const __m128i C = _mm_andnot_si128(red_blue_mask, A); // 0 G 0 A - const __m128i D = _mm_shufflelo_epi16(B, _MM_SHUFFLE(2, 3, 0, 1)); - const __m128i E = _mm_shufflehi_epi16(D, _MM_SHUFFLE(2, 3, 0, 1)); - const __m128i F = _mm_or_si128(E, C); - _mm_storeu_si128((__m128i*)(out + i), F); - } - for (; i < len; ++i) { - out[i] = MakeARGB32(a[4 * i], r[4 * i], g[4 * i], b[4 * i]); - } - } else { - assert(g == b + 1); - assert(r == b + 2); - assert(a == b + 3); - memcpy(out, b, len * 4); - } -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8EncDspARGBInitSSE2(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspARGBInitSSE2(void) { - VP8PackARGB = PackARGB; -} - -#else // !WEBP_USE_SSE2 - -WEBP_DSP_INIT_STUB(VP8EncDspARGBInitSSE2) - -#endif // WEBP_USE_SSE2 diff --git a/drivers/webp/dsp/common_sse2.h b/drivers/webp/dsp/common_sse2.h deleted file mode 100644 index 7cea13fb3c..0000000000 --- a/drivers/webp/dsp/common_sse2.h +++ /dev/null @@ -1,109 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// SSE2 code common to several files. -// -// Author: Vincent Rabaud (vrabaud@google.com) - -#ifndef WEBP_DSP_COMMON_SSE2_H_ -#define WEBP_DSP_COMMON_SSE2_H_ - -#ifdef __cplusplus -extern "C" { -#endif - -#if defined(WEBP_USE_SSE2) - -#include <emmintrin.h> - -//------------------------------------------------------------------------------ -// Quite useful macro for debugging. Left here for convenience. - -#if 0 -#include <stdio.h> -static WEBP_INLINE void PrintReg(const __m128i r, const char* const name, - int size) { - int n; - union { - __m128i r; - uint8_t i8[16]; - uint16_t i16[8]; - uint32_t i32[4]; - uint64_t i64[2]; - } tmp; - tmp.r = r; - fprintf(stderr, "%s\t: ", name); - if (size == 8) { - for (n = 0; n < 16; ++n) fprintf(stderr, "%.2x ", tmp.i8[n]); - } else if (size == 16) { - for (n = 0; n < 8; ++n) fprintf(stderr, "%.4x ", tmp.i16[n]); - } else if (size == 32) { - for (n = 0; n < 4; ++n) fprintf(stderr, "%.8x ", tmp.i32[n]); - } else { - for (n = 0; n < 2; ++n) fprintf(stderr, "%.16lx ", tmp.i64[n]); - } - fprintf(stderr, "\n"); -} -#endif - -//------------------------------------------------------------------------------ -// Math functions. - -// Return the sum of all the 8b in the register. -static WEBP_INLINE int VP8HorizontalAdd8b(const __m128i* const a) { - const __m128i zero = _mm_setzero_si128(); - const __m128i sad8x2 = _mm_sad_epu8(*a, zero); - // sum the two sads: sad8x2[0:1] + sad8x2[8:9] - const __m128i sum = _mm_add_epi32(sad8x2, _mm_shuffle_epi32(sad8x2, 2)); - return _mm_cvtsi128_si32(sum); -} - -// Transpose two 4x4 16b matrices horizontally stored in registers. -static WEBP_INLINE void VP8Transpose_2_4x4_16b( - const __m128i* const in0, const __m128i* const in1, - const __m128i* const in2, const __m128i* const in3, __m128i* const out0, - __m128i* const out1, __m128i* const out2, __m128i* const out3) { - // Transpose the two 4x4. - // a00 a01 a02 a03 b00 b01 b02 b03 - // a10 a11 a12 a13 b10 b11 b12 b13 - // a20 a21 a22 a23 b20 b21 b22 b23 - // a30 a31 a32 a33 b30 b31 b32 b33 - const __m128i transpose0_0 = _mm_unpacklo_epi16(*in0, *in1); - const __m128i transpose0_1 = _mm_unpacklo_epi16(*in2, *in3); - const __m128i transpose0_2 = _mm_unpackhi_epi16(*in0, *in1); - const __m128i transpose0_3 = _mm_unpackhi_epi16(*in2, *in3); - // a00 a10 a01 a11 a02 a12 a03 a13 - // a20 a30 a21 a31 a22 a32 a23 a33 - // b00 b10 b01 b11 b02 b12 b03 b13 - // b20 b30 b21 b31 b22 b32 b23 b33 - const __m128i transpose1_0 = _mm_unpacklo_epi32(transpose0_0, transpose0_1); - const __m128i transpose1_1 = _mm_unpacklo_epi32(transpose0_2, transpose0_3); - const __m128i transpose1_2 = _mm_unpackhi_epi32(transpose0_0, transpose0_1); - const __m128i transpose1_3 = _mm_unpackhi_epi32(transpose0_2, transpose0_3); - // a00 a10 a20 a30 a01 a11 a21 a31 - // b00 b10 b20 b30 b01 b11 b21 b31 - // a02 a12 a22 a32 a03 a13 a23 a33 - // b02 b12 a22 b32 b03 b13 b23 b33 - *out0 = _mm_unpacklo_epi64(transpose1_0, transpose1_1); - *out1 = _mm_unpackhi_epi64(transpose1_0, transpose1_1); - *out2 = _mm_unpacklo_epi64(transpose1_2, transpose1_3); - *out3 = _mm_unpackhi_epi64(transpose1_2, transpose1_3); - // a00 a10 a20 a30 b00 b10 b20 b30 - // a01 a11 a21 a31 b01 b11 b21 b31 - // a02 a12 a22 a32 b02 b12 b22 b32 - // a03 a13 a23 a33 b03 b13 b23 b33 -} - -#endif // WEBP_USE_SSE2 - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif // WEBP_DSP_COMMON_SSE2_H_ diff --git a/drivers/webp/dsp/cost.c b/drivers/webp/dsp/cost.c deleted file mode 100644 index fe72d26e79..0000000000 --- a/drivers/webp/dsp/cost.c +++ /dev/null @@ -1,412 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./dsp.h" -#include "../enc/cost.h" - -//------------------------------------------------------------------------------ -// Boolean-cost cost table - -const uint16_t VP8EntropyCost[256] = { - 1792, 1792, 1792, 1536, 1536, 1408, 1366, 1280, 1280, 1216, - 1178, 1152, 1110, 1076, 1061, 1024, 1024, 992, 968, 951, - 939, 911, 896, 878, 871, 854, 838, 820, 811, 794, - 786, 768, 768, 752, 740, 732, 720, 709, 704, 690, - 683, 672, 666, 655, 647, 640, 631, 622, 615, 607, - 598, 592, 586, 576, 572, 564, 559, 555, 547, 541, - 534, 528, 522, 512, 512, 504, 500, 494, 488, 483, - 477, 473, 467, 461, 458, 452, 448, 443, 438, 434, - 427, 424, 419, 415, 410, 406, 403, 399, 394, 390, - 384, 384, 377, 374, 370, 366, 362, 359, 355, 351, - 347, 342, 342, 336, 333, 330, 326, 323, 320, 316, - 312, 308, 305, 302, 299, 296, 293, 288, 287, 283, - 280, 277, 274, 272, 268, 266, 262, 256, 256, 256, - 251, 248, 245, 242, 240, 237, 234, 232, 228, 226, - 223, 221, 218, 216, 214, 211, 208, 205, 203, 201, - 198, 196, 192, 191, 188, 187, 183, 181, 179, 176, - 175, 171, 171, 168, 165, 163, 160, 159, 156, 154, - 152, 150, 148, 146, 144, 142, 139, 138, 135, 133, - 131, 128, 128, 125, 123, 121, 119, 117, 115, 113, - 111, 110, 107, 105, 103, 102, 100, 98, 96, 94, - 92, 91, 89, 86, 86, 83, 82, 80, 77, 76, - 74, 73, 71, 69, 67, 66, 64, 63, 61, 59, - 57, 55, 54, 52, 51, 49, 47, 46, 44, 43, - 41, 40, 38, 36, 35, 33, 32, 30, 29, 27, - 25, 24, 22, 21, 19, 18, 16, 15, 13, 12, - 10, 9, 7, 6, 4, 3 -}; - -//------------------------------------------------------------------------------ -// Level cost tables - -// fixed costs for coding levels, deduce from the coding tree. -// This is only the part that doesn't depend on the probability state. -const uint16_t VP8LevelFixedCosts[MAX_LEVEL + 1] = { - 0, 256, 256, 256, 256, 432, 618, 630, - 731, 640, 640, 828, 901, 948, 1021, 1101, - 1174, 1221, 1294, 1042, 1085, 1115, 1158, 1202, - 1245, 1275, 1318, 1337, 1380, 1410, 1453, 1497, - 1540, 1570, 1613, 1280, 1295, 1317, 1332, 1358, - 1373, 1395, 1410, 1454, 1469, 1491, 1506, 1532, - 1547, 1569, 1584, 1601, 1616, 1638, 1653, 1679, - 1694, 1716, 1731, 1775, 1790, 1812, 1827, 1853, - 1868, 1890, 1905, 1727, 1733, 1742, 1748, 1759, - 1765, 1774, 1780, 1800, 1806, 1815, 1821, 1832, - 1838, 1847, 1853, 1878, 1884, 1893, 1899, 1910, - 1916, 1925, 1931, 1951, 1957, 1966, 1972, 1983, - 1989, 1998, 2004, 2027, 2033, 2042, 2048, 2059, - 2065, 2074, 2080, 2100, 2106, 2115, 2121, 2132, - 2138, 2147, 2153, 2178, 2184, 2193, 2199, 2210, - 2216, 2225, 2231, 2251, 2257, 2266, 2272, 2283, - 2289, 2298, 2304, 2168, 2174, 2183, 2189, 2200, - 2206, 2215, 2221, 2241, 2247, 2256, 2262, 2273, - 2279, 2288, 2294, 2319, 2325, 2334, 2340, 2351, - 2357, 2366, 2372, 2392, 2398, 2407, 2413, 2424, - 2430, 2439, 2445, 2468, 2474, 2483, 2489, 2500, - 2506, 2515, 2521, 2541, 2547, 2556, 2562, 2573, - 2579, 2588, 2594, 2619, 2625, 2634, 2640, 2651, - 2657, 2666, 2672, 2692, 2698, 2707, 2713, 2724, - 2730, 2739, 2745, 2540, 2546, 2555, 2561, 2572, - 2578, 2587, 2593, 2613, 2619, 2628, 2634, 2645, - 2651, 2660, 2666, 2691, 2697, 2706, 2712, 2723, - 2729, 2738, 2744, 2764, 2770, 2779, 2785, 2796, - 2802, 2811, 2817, 2840, 2846, 2855, 2861, 2872, - 2878, 2887, 2893, 2913, 2919, 2928, 2934, 2945, - 2951, 2960, 2966, 2991, 2997, 3006, 3012, 3023, - 3029, 3038, 3044, 3064, 3070, 3079, 3085, 3096, - 3102, 3111, 3117, 2981, 2987, 2996, 3002, 3013, - 3019, 3028, 3034, 3054, 3060, 3069, 3075, 3086, - 3092, 3101, 3107, 3132, 3138, 3147, 3153, 3164, - 3170, 3179, 3185, 3205, 3211, 3220, 3226, 3237, - 3243, 3252, 3258, 3281, 3287, 3296, 3302, 3313, - 3319, 3328, 3334, 3354, 3360, 3369, 3375, 3386, - 3392, 3401, 3407, 3432, 3438, 3447, 3453, 3464, - 3470, 3479, 3485, 3505, 3511, 3520, 3526, 3537, - 3543, 3552, 3558, 2816, 2822, 2831, 2837, 2848, - 2854, 2863, 2869, 2889, 2895, 2904, 2910, 2921, - 2927, 2936, 2942, 2967, 2973, 2982, 2988, 2999, - 3005, 3014, 3020, 3040, 3046, 3055, 3061, 3072, - 3078, 3087, 3093, 3116, 3122, 3131, 3137, 3148, - 3154, 3163, 3169, 3189, 3195, 3204, 3210, 3221, - 3227, 3236, 3242, 3267, 3273, 3282, 3288, 3299, - 3305, 3314, 3320, 3340, 3346, 3355, 3361, 3372, - 3378, 3387, 3393, 3257, 3263, 3272, 3278, 3289, - 3295, 3304, 3310, 3330, 3336, 3345, 3351, 3362, - 3368, 3377, 3383, 3408, 3414, 3423, 3429, 3440, - 3446, 3455, 3461, 3481, 3487, 3496, 3502, 3513, - 3519, 3528, 3534, 3557, 3563, 3572, 3578, 3589, - 3595, 3604, 3610, 3630, 3636, 3645, 3651, 3662, - 3668, 3677, 3683, 3708, 3714, 3723, 3729, 3740, - 3746, 3755, 3761, 3781, 3787, 3796, 3802, 3813, - 3819, 3828, 3834, 3629, 3635, 3644, 3650, 3661, - 3667, 3676, 3682, 3702, 3708, 3717, 3723, 3734, - 3740, 3749, 3755, 3780, 3786, 3795, 3801, 3812, - 3818, 3827, 3833, 3853, 3859, 3868, 3874, 3885, - 3891, 3900, 3906, 3929, 3935, 3944, 3950, 3961, - 3967, 3976, 3982, 4002, 4008, 4017, 4023, 4034, - 4040, 4049, 4055, 4080, 4086, 4095, 4101, 4112, - 4118, 4127, 4133, 4153, 4159, 4168, 4174, 4185, - 4191, 4200, 4206, 4070, 4076, 4085, 4091, 4102, - 4108, 4117, 4123, 4143, 4149, 4158, 4164, 4175, - 4181, 4190, 4196, 4221, 4227, 4236, 4242, 4253, - 4259, 4268, 4274, 4294, 4300, 4309, 4315, 4326, - 4332, 4341, 4347, 4370, 4376, 4385, 4391, 4402, - 4408, 4417, 4423, 4443, 4449, 4458, 4464, 4475, - 4481, 4490, 4496, 4521, 4527, 4536, 4542, 4553, - 4559, 4568, 4574, 4594, 4600, 4609, 4615, 4626, - 4632, 4641, 4647, 3515, 3521, 3530, 3536, 3547, - 3553, 3562, 3568, 3588, 3594, 3603, 3609, 3620, - 3626, 3635, 3641, 3666, 3672, 3681, 3687, 3698, - 3704, 3713, 3719, 3739, 3745, 3754, 3760, 3771, - 3777, 3786, 3792, 3815, 3821, 3830, 3836, 3847, - 3853, 3862, 3868, 3888, 3894, 3903, 3909, 3920, - 3926, 3935, 3941, 3966, 3972, 3981, 3987, 3998, - 4004, 4013, 4019, 4039, 4045, 4054, 4060, 4071, - 4077, 4086, 4092, 3956, 3962, 3971, 3977, 3988, - 3994, 4003, 4009, 4029, 4035, 4044, 4050, 4061, - 4067, 4076, 4082, 4107, 4113, 4122, 4128, 4139, - 4145, 4154, 4160, 4180, 4186, 4195, 4201, 4212, - 4218, 4227, 4233, 4256, 4262, 4271, 4277, 4288, - 4294, 4303, 4309, 4329, 4335, 4344, 4350, 4361, - 4367, 4376, 4382, 4407, 4413, 4422, 4428, 4439, - 4445, 4454, 4460, 4480, 4486, 4495, 4501, 4512, - 4518, 4527, 4533, 4328, 4334, 4343, 4349, 4360, - 4366, 4375, 4381, 4401, 4407, 4416, 4422, 4433, - 4439, 4448, 4454, 4479, 4485, 4494, 4500, 4511, - 4517, 4526, 4532, 4552, 4558, 4567, 4573, 4584, - 4590, 4599, 4605, 4628, 4634, 4643, 4649, 4660, - 4666, 4675, 4681, 4701, 4707, 4716, 4722, 4733, - 4739, 4748, 4754, 4779, 4785, 4794, 4800, 4811, - 4817, 4826, 4832, 4852, 4858, 4867, 4873, 4884, - 4890, 4899, 4905, 4769, 4775, 4784, 4790, 4801, - 4807, 4816, 4822, 4842, 4848, 4857, 4863, 4874, - 4880, 4889, 4895, 4920, 4926, 4935, 4941, 4952, - 4958, 4967, 4973, 4993, 4999, 5008, 5014, 5025, - 5031, 5040, 5046, 5069, 5075, 5084, 5090, 5101, - 5107, 5116, 5122, 5142, 5148, 5157, 5163, 5174, - 5180, 5189, 5195, 5220, 5226, 5235, 5241, 5252, - 5258, 5267, 5273, 5293, 5299, 5308, 5314, 5325, - 5331, 5340, 5346, 4604, 4610, 4619, 4625, 4636, - 4642, 4651, 4657, 4677, 4683, 4692, 4698, 4709, - 4715, 4724, 4730, 4755, 4761, 4770, 4776, 4787, - 4793, 4802, 4808, 4828, 4834, 4843, 4849, 4860, - 4866, 4875, 4881, 4904, 4910, 4919, 4925, 4936, - 4942, 4951, 4957, 4977, 4983, 4992, 4998, 5009, - 5015, 5024, 5030, 5055, 5061, 5070, 5076, 5087, - 5093, 5102, 5108, 5128, 5134, 5143, 5149, 5160, - 5166, 5175, 5181, 5045, 5051, 5060, 5066, 5077, - 5083, 5092, 5098, 5118, 5124, 5133, 5139, 5150, - 5156, 5165, 5171, 5196, 5202, 5211, 5217, 5228, - 5234, 5243, 5249, 5269, 5275, 5284, 5290, 5301, - 5307, 5316, 5322, 5345, 5351, 5360, 5366, 5377, - 5383, 5392, 5398, 5418, 5424, 5433, 5439, 5450, - 5456, 5465, 5471, 5496, 5502, 5511, 5517, 5528, - 5534, 5543, 5549, 5569, 5575, 5584, 5590, 5601, - 5607, 5616, 5622, 5417, 5423, 5432, 5438, 5449, - 5455, 5464, 5470, 5490, 5496, 5505, 5511, 5522, - 5528, 5537, 5543, 5568, 5574, 5583, 5589, 5600, - 5606, 5615, 5621, 5641, 5647, 5656, 5662, 5673, - 5679, 5688, 5694, 5717, 5723, 5732, 5738, 5749, - 5755, 5764, 5770, 5790, 5796, 5805, 5811, 5822, - 5828, 5837, 5843, 5868, 5874, 5883, 5889, 5900, - 5906, 5915, 5921, 5941, 5947, 5956, 5962, 5973, - 5979, 5988, 5994, 5858, 5864, 5873, 5879, 5890, - 5896, 5905, 5911, 5931, 5937, 5946, 5952, 5963, - 5969, 5978, 5984, 6009, 6015, 6024, 6030, 6041, - 6047, 6056, 6062, 6082, 6088, 6097, 6103, 6114, - 6120, 6129, 6135, 6158, 6164, 6173, 6179, 6190, - 6196, 6205, 6211, 6231, 6237, 6246, 6252, 6263, - 6269, 6278, 6284, 6309, 6315, 6324, 6330, 6341, - 6347, 6356, 6362, 6382, 6388, 6397, 6403, 6414, - 6420, 6429, 6435, 3515, 3521, 3530, 3536, 3547, - 3553, 3562, 3568, 3588, 3594, 3603, 3609, 3620, - 3626, 3635, 3641, 3666, 3672, 3681, 3687, 3698, - 3704, 3713, 3719, 3739, 3745, 3754, 3760, 3771, - 3777, 3786, 3792, 3815, 3821, 3830, 3836, 3847, - 3853, 3862, 3868, 3888, 3894, 3903, 3909, 3920, - 3926, 3935, 3941, 3966, 3972, 3981, 3987, 3998, - 4004, 4013, 4019, 4039, 4045, 4054, 4060, 4071, - 4077, 4086, 4092, 3956, 3962, 3971, 3977, 3988, - 3994, 4003, 4009, 4029, 4035, 4044, 4050, 4061, - 4067, 4076, 4082, 4107, 4113, 4122, 4128, 4139, - 4145, 4154, 4160, 4180, 4186, 4195, 4201, 4212, - 4218, 4227, 4233, 4256, 4262, 4271, 4277, 4288, - 4294, 4303, 4309, 4329, 4335, 4344, 4350, 4361, - 4367, 4376, 4382, 4407, 4413, 4422, 4428, 4439, - 4445, 4454, 4460, 4480, 4486, 4495, 4501, 4512, - 4518, 4527, 4533, 4328, 4334, 4343, 4349, 4360, - 4366, 4375, 4381, 4401, 4407, 4416, 4422, 4433, - 4439, 4448, 4454, 4479, 4485, 4494, 4500, 4511, - 4517, 4526, 4532, 4552, 4558, 4567, 4573, 4584, - 4590, 4599, 4605, 4628, 4634, 4643, 4649, 4660, - 4666, 4675, 4681, 4701, 4707, 4716, 4722, 4733, - 4739, 4748, 4754, 4779, 4785, 4794, 4800, 4811, - 4817, 4826, 4832, 4852, 4858, 4867, 4873, 4884, - 4890, 4899, 4905, 4769, 4775, 4784, 4790, 4801, - 4807, 4816, 4822, 4842, 4848, 4857, 4863, 4874, - 4880, 4889, 4895, 4920, 4926, 4935, 4941, 4952, - 4958, 4967, 4973, 4993, 4999, 5008, 5014, 5025, - 5031, 5040, 5046, 5069, 5075, 5084, 5090, 5101, - 5107, 5116, 5122, 5142, 5148, 5157, 5163, 5174, - 5180, 5189, 5195, 5220, 5226, 5235, 5241, 5252, - 5258, 5267, 5273, 5293, 5299, 5308, 5314, 5325, - 5331, 5340, 5346, 4604, 4610, 4619, 4625, 4636, - 4642, 4651, 4657, 4677, 4683, 4692, 4698, 4709, - 4715, 4724, 4730, 4755, 4761, 4770, 4776, 4787, - 4793, 4802, 4808, 4828, 4834, 4843, 4849, 4860, - 4866, 4875, 4881, 4904, 4910, 4919, 4925, 4936, - 4942, 4951, 4957, 4977, 4983, 4992, 4998, 5009, - 5015, 5024, 5030, 5055, 5061, 5070, 5076, 5087, - 5093, 5102, 5108, 5128, 5134, 5143, 5149, 5160, - 5166, 5175, 5181, 5045, 5051, 5060, 5066, 5077, - 5083, 5092, 5098, 5118, 5124, 5133, 5139, 5150, - 5156, 5165, 5171, 5196, 5202, 5211, 5217, 5228, - 5234, 5243, 5249, 5269, 5275, 5284, 5290, 5301, - 5307, 5316, 5322, 5345, 5351, 5360, 5366, 5377, - 5383, 5392, 5398, 5418, 5424, 5433, 5439, 5450, - 5456, 5465, 5471, 5496, 5502, 5511, 5517, 5528, - 5534, 5543, 5549, 5569, 5575, 5584, 5590, 5601, - 5607, 5616, 5622, 5417, 5423, 5432, 5438, 5449, - 5455, 5464, 5470, 5490, 5496, 5505, 5511, 5522, - 5528, 5537, 5543, 5568, 5574, 5583, 5589, 5600, - 5606, 5615, 5621, 5641, 5647, 5656, 5662, 5673, - 5679, 5688, 5694, 5717, 5723, 5732, 5738, 5749, - 5755, 5764, 5770, 5790, 5796, 5805, 5811, 5822, - 5828, 5837, 5843, 5868, 5874, 5883, 5889, 5900, - 5906, 5915, 5921, 5941, 5947, 5956, 5962, 5973, - 5979, 5988, 5994, 5858, 5864, 5873, 5879, 5890, - 5896, 5905, 5911, 5931, 5937, 5946, 5952, 5963, - 5969, 5978, 5984, 6009, 6015, 6024, 6030, 6041, - 6047, 6056, 6062, 6082, 6088, 6097, 6103, 6114, - 6120, 6129, 6135, 6158, 6164, 6173, 6179, 6190, - 6196, 6205, 6211, 6231, 6237, 6246, 6252, 6263, - 6269, 6278, 6284, 6309, 6315, 6324, 6330, 6341, - 6347, 6356, 6362, 6382, 6388, 6397, 6403, 6414, - 6420, 6429, 6435, 5303, 5309, 5318, 5324, 5335, - 5341, 5350, 5356, 5376, 5382, 5391, 5397, 5408, - 5414, 5423, 5429, 5454, 5460, 5469, 5475, 5486, - 5492, 5501, 5507, 5527, 5533, 5542, 5548, 5559, - 5565, 5574, 5580, 5603, 5609, 5618, 5624, 5635, - 5641, 5650, 5656, 5676, 5682, 5691, 5697, 5708, - 5714, 5723, 5729, 5754, 5760, 5769, 5775, 5786, - 5792, 5801, 5807, 5827, 5833, 5842, 5848, 5859, - 5865, 5874, 5880, 5744, 5750, 5759, 5765, 5776, - 5782, 5791, 5797, 5817, 5823, 5832, 5838, 5849, - 5855, 5864, 5870, 5895, 5901, 5910, 5916, 5927, - 5933, 5942, 5948, 5968, 5974, 5983, 5989, 6000, - 6006, 6015, 6021, 6044, 6050, 6059, 6065, 6076, - 6082, 6091, 6097, 6117, 6123, 6132, 6138, 6149, - 6155, 6164, 6170, 6195, 6201, 6210, 6216, 6227, - 6233, 6242, 6248, 6268, 6274, 6283, 6289, 6300, - 6306, 6315, 6321, 6116, 6122, 6131, 6137, 6148, - 6154, 6163, 6169, 6189, 6195, 6204, 6210, 6221, - 6227, 6236, 6242, 6267, 6273, 6282, 6288, 6299, - 6305, 6314, 6320, 6340, 6346, 6355, 6361, 6372, - 6378, 6387, 6393, 6416, 6422, 6431, 6437, 6448, - 6454, 6463, 6469, 6489, 6495, 6504, 6510, 6521, - 6527, 6536, 6542, 6567, 6573, 6582, 6588, 6599, - 6605, 6614, 6620, 6640, 6646, 6655, 6661, 6672, - 6678, 6687, 6693, 6557, 6563, 6572, 6578, 6589, - 6595, 6604, 6610, 6630, 6636, 6645, 6651, 6662, - 6668, 6677, 6683, 6708, 6714, 6723, 6729, 6740, - 6746, 6755, 6761, 6781, 6787, 6796, 6802, 6813, - 6819, 6828, 6834, 6857, 6863, 6872, 6878, 6889, - 6895, 6904, 6910, 6930, 6936, 6945, 6951, 6962, - 6968, 6977, 6983, 7008, 7014, 7023, 7029, 7040, - 7046, 7055, 7061, 7081, 7087, 7096, 7102, 7113, - 7119, 7128, 7134, 6392, 6398, 6407, 6413, 6424, - 6430, 6439, 6445, 6465, 6471, 6480, 6486, 6497, - 6503, 6512, 6518, 6543, 6549, 6558, 6564, 6575, - 6581, 6590, 6596, 6616, 6622, 6631, 6637, 6648, - 6654, 6663, 6669, 6692, 6698, 6707, 6713, 6724, - 6730, 6739, 6745, 6765, 6771, 6780, 6786, 6797, - 6803, 6812, 6818, 6843, 6849, 6858, 6864, 6875, - 6881, 6890, 6896, 6916, 6922, 6931, 6937, 6948, - 6954, 6963, 6969, 6833, 6839, 6848, 6854, 6865, - 6871, 6880, 6886, 6906, 6912, 6921, 6927, 6938, - 6944, 6953, 6959, 6984, 6990, 6999, 7005, 7016, - 7022, 7031, 7037, 7057, 7063, 7072, 7078, 7089, - 7095, 7104, 7110, 7133, 7139, 7148, 7154, 7165, - 7171, 7180, 7186, 7206, 7212, 7221, 7227, 7238, - 7244, 7253, 7259, 7284, 7290, 7299, 7305, 7316, - 7322, 7331, 7337, 7357, 7363, 7372, 7378, 7389, - 7395, 7404, 7410, 7205, 7211, 7220, 7226, 7237, - 7243, 7252, 7258, 7278, 7284, 7293, 7299, 7310, - 7316, 7325, 7331, 7356, 7362, 7371, 7377, 7388, - 7394, 7403, 7409, 7429, 7435, 7444, 7450, 7461, - 7467, 7476, 7482, 7505, 7511, 7520, 7526, 7537, - 7543, 7552, 7558, 7578, 7584, 7593, 7599, 7610, - 7616, 7625, 7631, 7656, 7662, 7671, 7677, 7688, - 7694, 7703, 7709, 7729, 7735, 7744, 7750, 7761 -}; - -//------------------------------------------------------------------------------ -// Tables for level coding - -const uint8_t VP8EncBands[16 + 1] = { - 0, 1, 2, 3, 6, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6, 7, - 0 // sentinel -}; - -//------------------------------------------------------------------------------ -// Mode costs - -static int GetResidualCost(int ctx0, const VP8Residual* const res) { - int n = res->first; - // should be prob[VP8EncBands[n]], but it's equivalent for n=0 or 1 - const int p0 = res->prob[n][ctx0][0]; - CostArrayPtr const costs = res->costs; - const uint16_t* t = costs[n][ctx0]; - // bit_cost(1, p0) is already incorporated in t[] tables, but only if ctx != 0 - // (as required by the syntax). For ctx0 == 0, we need to add it here or it'll - // be missing during the loop. - int cost = (ctx0 == 0) ? VP8BitCost(1, p0) : 0; - - if (res->last < 0) { - return VP8BitCost(0, p0); - } - for (; n < res->last; ++n) { - const int v = abs(res->coeffs[n]); - const int ctx = (v >= 2) ? 2 : v; - cost += VP8LevelCost(t, v); - t = costs[n + 1][ctx]; - } - // Last coefficient is always non-zero - { - const int v = abs(res->coeffs[n]); - assert(v != 0); - cost += VP8LevelCost(t, v); - if (n < 15) { - const int b = VP8EncBands[n + 1]; - const int ctx = (v == 1) ? 1 : 2; - const int last_p0 = res->prob[b][ctx][0]; - cost += VP8BitCost(0, last_p0); - } - } - return cost; -} - -static void SetResidualCoeffs(const int16_t* const coeffs, - VP8Residual* const res) { - int n; - res->last = -1; - assert(res->first == 0 || coeffs[0] == 0); - for (n = 15; n >= 0; --n) { - if (coeffs[n]) { - res->last = n; - break; - } - } - res->coeffs = coeffs; -} - -//------------------------------------------------------------------------------ -// init function - -VP8GetResidualCostFunc VP8GetResidualCost; -VP8SetResidualCoeffsFunc VP8SetResidualCoeffs; - -extern void VP8EncDspCostInitMIPS32(void); -extern void VP8EncDspCostInitMIPSdspR2(void); -extern void VP8EncDspCostInitSSE2(void); - -static volatile VP8CPUInfo cost_last_cpuinfo_used = - (VP8CPUInfo)&cost_last_cpuinfo_used; - -WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspCostInit(void) { - if (cost_last_cpuinfo_used == VP8GetCPUInfo) return; - - VP8GetResidualCost = GetResidualCost; - VP8SetResidualCoeffs = SetResidualCoeffs; - - // If defined, use CPUInfo() to overwrite some pointers with faster versions. - if (VP8GetCPUInfo != NULL) { -#if defined(WEBP_USE_MIPS32) - if (VP8GetCPUInfo(kMIPS32)) { - VP8EncDspCostInitMIPS32(); - } -#endif -#if defined(WEBP_USE_MIPS_DSP_R2) - if (VP8GetCPUInfo(kMIPSdspR2)) { - VP8EncDspCostInitMIPSdspR2(); - } -#endif -#if defined(WEBP_USE_SSE2) - if (VP8GetCPUInfo(kSSE2)) { - VP8EncDspCostInitSSE2(); - } -#endif - } - - cost_last_cpuinfo_used = VP8GetCPUInfo; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/dsp/cost_mips32.c b/drivers/webp/dsp/cost_mips32.c deleted file mode 100644 index d1e240e191..0000000000 --- a/drivers/webp/dsp/cost_mips32.c +++ /dev/null @@ -1,154 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Author: Djordje Pesut (djordje.pesut@imgtec.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_MIPS32) - -#include "../enc/cost.h" - -static int GetResidualCost(int ctx0, const VP8Residual* const res) { - int temp0, temp1; - int v_reg, ctx_reg; - int n = res->first; - // should be prob[VP8EncBands[n]], but it's equivalent for n=0 or 1 - int p0 = res->prob[n][ctx0][0]; - CostArrayPtr const costs = res->costs; - const uint16_t* t = costs[n][ctx0]; - // bit_cost(1, p0) is already incorporated in t[] tables, but only if ctx != 0 - // (as required by the syntax). For ctx0 == 0, we need to add it here or it'll - // be missing during the loop. - int cost = (ctx0 == 0) ? VP8BitCost(1, p0) : 0; - const int16_t* res_coeffs = res->coeffs; - const int res_last = res->last; - const int const_max_level = MAX_VARIABLE_LEVEL; - const int const_2 = 2; - const uint16_t** p_costs = &costs[n][0]; - const size_t inc_p_costs = NUM_CTX * sizeof(*p_costs); - - if (res->last < 0) { - return VP8BitCost(0, p0); - } - - __asm__ volatile ( - ".set push \n\t" - ".set noreorder \n\t" - "subu %[temp1], %[res_last], %[n] \n\t" - "sll %[temp0], %[n], 1 \n\t" - "blez %[temp1], 2f \n\t" - " addu %[res_coeffs], %[res_coeffs], %[temp0] \n\t" - "1: \n\t" - "lh %[v_reg], 0(%[res_coeffs]) \n\t" - "addiu %[n], %[n], 1 \n\t" - "negu %[temp0], %[v_reg] \n\t" - "slti %[temp1], %[v_reg], 0 \n\t" - "movn %[v_reg], %[temp0], %[temp1] \n\t" - "sltiu %[temp0], %[v_reg], 2 \n\t" - "move %[ctx_reg], %[v_reg] \n\t" - "movz %[ctx_reg], %[const_2], %[temp0] \n\t" - "sll %[temp1], %[v_reg], 1 \n\t" - "addu %[temp1], %[temp1], %[VP8LevelFixedCosts] \n\t" - "lhu %[temp1], 0(%[temp1]) \n\t" - "slt %[temp0], %[v_reg], %[const_max_level] \n\t" - "movz %[v_reg], %[const_max_level], %[temp0] \n\t" - "addu %[cost], %[cost], %[temp1] \n\t" - "sll %[v_reg], %[v_reg], 1 \n\t" - "sll %[ctx_reg], %[ctx_reg], 2 \n\t" - "addu %[v_reg], %[v_reg], %[t] \n\t" - "lhu %[temp0], 0(%[v_reg]) \n\t" - "addu %[p_costs], %[p_costs], %[inc_p_costs] \n\t" - "addu %[t], %[p_costs], %[ctx_reg] \n\t" - "addu %[cost], %[cost], %[temp0] \n\t" - "addiu %[res_coeffs], %[res_coeffs], 2 \n\t" - "bne %[n], %[res_last], 1b \n\t" - " lw %[t], 0(%[t]) \n\t" - "2: \n\t" - ".set pop \n\t" - : [cost]"+&r"(cost), [t]"+&r"(t), [n]"+&r"(n), [v_reg]"=&r"(v_reg), - [ctx_reg]"=&r"(ctx_reg), [p_costs]"+&r"(p_costs), [temp0]"=&r"(temp0), - [temp1]"=&r"(temp1), [res_coeffs]"+&r"(res_coeffs) - : [const_2]"r"(const_2), [const_max_level]"r"(const_max_level), - [VP8LevelFixedCosts]"r"(VP8LevelFixedCosts), [res_last]"r"(res_last), - [inc_p_costs]"r"(inc_p_costs) - : "memory" - ); - - // Last coefficient is always non-zero - { - const int v = abs(res->coeffs[n]); - assert(v != 0); - cost += VP8LevelCost(t, v); - if (n < 15) { - const int b = VP8EncBands[n + 1]; - const int ctx = (v == 1) ? 1 : 2; - const int last_p0 = res->prob[b][ctx][0]; - cost += VP8BitCost(0, last_p0); - } - } - return cost; -} - -static void SetResidualCoeffs(const int16_t* const coeffs, - VP8Residual* const res) { - const int16_t* p_coeffs = (int16_t*)coeffs; - int temp0, temp1, temp2, n, n1; - assert(res->first == 0 || coeffs[0] == 0); - - __asm__ volatile ( - ".set push \n\t" - ".set noreorder \n\t" - "addiu %[p_coeffs], %[p_coeffs], 28 \n\t" - "li %[n], 15 \n\t" - "li %[temp2], -1 \n\t" - "0: \n\t" - "ulw %[temp0], 0(%[p_coeffs]) \n\t" - "beqz %[temp0], 1f \n\t" -#if defined(WORDS_BIGENDIAN) - " sll %[temp1], %[temp0], 16 \n\t" -#else - " srl %[temp1], %[temp0], 16 \n\t" -#endif - "addiu %[n1], %[n], -1 \n\t" - "movz %[temp0], %[n1], %[temp1] \n\t" - "movn %[temp0], %[n], %[temp1] \n\t" - "j 2f \n\t" - " addiu %[temp2], %[temp0], 0 \n\t" - "1: \n\t" - "addiu %[n], %[n], -2 \n\t" - "bgtz %[n], 0b \n\t" - " addiu %[p_coeffs], %[p_coeffs], -4 \n\t" - "2: \n\t" - ".set pop \n\t" - : [p_coeffs]"+&r"(p_coeffs), [temp0]"=&r"(temp0), - [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [n]"=&r"(n), [n1]"=&r"(n1) - : - : "memory" - ); - res->last = temp2; - res->coeffs = coeffs; -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8EncDspCostInitMIPS32(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspCostInitMIPS32(void) { - VP8GetResidualCost = GetResidualCost; - VP8SetResidualCoeffs = SetResidualCoeffs; -} - -#else // !WEBP_USE_MIPS32 - -WEBP_DSP_INIT_STUB(VP8EncDspCostInitMIPS32) - -#endif // WEBP_USE_MIPS32 diff --git a/drivers/webp/dsp/cost_mips_dsp_r2.c b/drivers/webp/dsp/cost_mips_dsp_r2.c deleted file mode 100644 index ce64067756..0000000000 --- a/drivers/webp/dsp/cost_mips_dsp_r2.c +++ /dev/null @@ -1,107 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Author: Djordje Pesut (djordje.pesut@imgtec.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_MIPS_DSP_R2) - -#include "../enc/cost.h" - -static int GetResidualCost(int ctx0, const VP8Residual* const res) { - int temp0, temp1; - int v_reg, ctx_reg; - int n = res->first; - // should be prob[VP8EncBands[n]], but it's equivalent for n=0 or 1 - int p0 = res->prob[n][ctx0][0]; - CostArrayPtr const costs = res->costs; - const uint16_t* t = costs[n][ctx0]; - // bit_cost(1, p0) is already incorporated in t[] tables, but only if ctx != 0 - // (as required by the syntax). For ctx0 == 0, we need to add it here or it'll - // be missing during the loop. - int cost = (ctx0 == 0) ? VP8BitCost(1, p0) : 0; - const int16_t* res_coeffs = res->coeffs; - const int res_last = res->last; - const int const_max_level = MAX_VARIABLE_LEVEL; - const int const_2 = 2; - const uint16_t** p_costs = &costs[n][0]; - const size_t inc_p_costs = NUM_CTX * sizeof(*p_costs); - - if (res->last < 0) { - return VP8BitCost(0, p0); - } - - __asm__ volatile ( - ".set push \n\t" - ".set noreorder \n\t" - "subu %[temp1], %[res_last], %[n] \n\t" - "blez %[temp1], 2f \n\t" - " nop \n\t" - "1: \n\t" - "sll %[temp0], %[n], 1 \n\t" - "lhx %[v_reg], %[temp0](%[res_coeffs]) \n\t" - "addiu %[n], %[n], 1 \n\t" - "absq_s.w %[v_reg], %[v_reg] \n\t" - "sltiu %[temp0], %[v_reg], 2 \n\t" - "move %[ctx_reg], %[v_reg] \n\t" - "movz %[ctx_reg], %[const_2], %[temp0] \n\t" - "sll %[temp1], %[v_reg], 1 \n\t" - "lhx %[temp1], %[temp1](%[VP8LevelFixedCosts]) \n\t" - "slt %[temp0], %[v_reg], %[const_max_level] \n\t" - "movz %[v_reg], %[const_max_level], %[temp0] \n\t" - "addu %[cost], %[cost], %[temp1] \n\t" - "sll %[v_reg], %[v_reg], 1 \n\t" - "sll %[ctx_reg], %[ctx_reg], 2 \n\t" - "lhx %[temp0], %[v_reg](%[t]) \n\t" - "addu %[p_costs], %[p_costs], %[inc_p_costs] \n\t" - "addu %[t], %[p_costs], %[ctx_reg] \n\t" - "addu %[cost], %[cost], %[temp0] \n\t" - "bne %[n], %[res_last], 1b \n\t" - " lw %[t], 0(%[t]) \n\t" - "2: \n\t" - ".set pop \n\t" - : [cost]"+&r"(cost), [t]"+&r"(t), [n]"+&r"(n), [v_reg]"=&r"(v_reg), - [ctx_reg]"=&r"(ctx_reg), [p_costs]"+&r"(p_costs), [temp0]"=&r"(temp0), - [temp1]"=&r"(temp1) - : [const_2]"r"(const_2), [const_max_level]"r"(const_max_level), - [VP8LevelFixedCosts]"r"(VP8LevelFixedCosts), [res_last]"r"(res_last), - [res_coeffs]"r"(res_coeffs), [inc_p_costs]"r"(inc_p_costs) - : "memory" - ); - - // Last coefficient is always non-zero - { - const int v = abs(res->coeffs[n]); - assert(v != 0); - cost += VP8LevelCost(t, v); - if (n < 15) { - const int b = VP8EncBands[n + 1]; - const int ctx = (v == 1) ? 1 : 2; - const int last_p0 = res->prob[b][ctx][0]; - cost += VP8BitCost(0, last_p0); - } - } - return cost; -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8EncDspCostInitMIPSdspR2(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspCostInitMIPSdspR2(void) { - VP8GetResidualCost = GetResidualCost; -} - -#else // !WEBP_USE_MIPS_DSP_R2 - -WEBP_DSP_INIT_STUB(VP8EncDspCostInitMIPSdspR2) - -#endif // WEBP_USE_MIPS_DSP_R2 diff --git a/drivers/webp/dsp/cost_sse2.c b/drivers/webp/dsp/cost_sse2.c deleted file mode 100644 index 0cb1c1fa04..0000000000 --- a/drivers/webp/dsp/cost_sse2.c +++ /dev/null @@ -1,119 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// SSE2 version of cost functions -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_SSE2) -#include <emmintrin.h> - -#include "../enc/cost.h" -#include "../enc/vp8enci.h" -#include "../utils/utils.h" - -//------------------------------------------------------------------------------ - -static void SetResidualCoeffsSSE2(const int16_t* const coeffs, - VP8Residual* const res) { - const __m128i c0 = _mm_loadu_si128((const __m128i*)(coeffs + 0)); - const __m128i c1 = _mm_loadu_si128((const __m128i*)(coeffs + 8)); - // Use SSE2 to compare 16 values with a single instruction. - const __m128i zero = _mm_setzero_si128(); - const __m128i m0 = _mm_packs_epi16(c0, c1); - const __m128i m1 = _mm_cmpeq_epi8(m0, zero); - // Get the comparison results as a bitmask into 16bits. Negate the mask to get - // the position of entries that are not equal to zero. We don't need to mask - // out least significant bits according to res->first, since coeffs[0] is 0 - // if res->first > 0. - const uint32_t mask = 0x0000ffffu ^ (uint32_t)_mm_movemask_epi8(m1); - // The position of the most significant non-zero bit indicates the position of - // the last non-zero value. - assert(res->first == 0 || coeffs[0] == 0); - res->last = mask ? BitsLog2Floor(mask) : -1; - res->coeffs = coeffs; -} - -static int GetResidualCostSSE2(int ctx0, const VP8Residual* const res) { - uint8_t levels[16], ctxs[16]; - uint16_t abs_levels[16]; - int n = res->first; - // should be prob[VP8EncBands[n]], but it's equivalent for n=0 or 1 - const int p0 = res->prob[n][ctx0][0]; - CostArrayPtr const costs = res->costs; - const uint16_t* t = costs[n][ctx0]; - // bit_cost(1, p0) is already incorporated in t[] tables, but only if ctx != 0 - // (as required by the syntax). For ctx0 == 0, we need to add it here or it'll - // be missing during the loop. - int cost = (ctx0 == 0) ? VP8BitCost(1, p0) : 0; - - if (res->last < 0) { - return VP8BitCost(0, p0); - } - - { // precompute clamped levels and contexts, packed to 8b. - const __m128i zero = _mm_setzero_si128(); - const __m128i kCst2 = _mm_set1_epi8(2); - const __m128i kCst67 = _mm_set1_epi8(MAX_VARIABLE_LEVEL); - const __m128i c0 = _mm_loadu_si128((const __m128i*)&res->coeffs[0]); - const __m128i c1 = _mm_loadu_si128((const __m128i*)&res->coeffs[8]); - const __m128i D0 = _mm_sub_epi16(zero, c0); - const __m128i D1 = _mm_sub_epi16(zero, c1); - const __m128i E0 = _mm_max_epi16(c0, D0); // abs(v), 16b - const __m128i E1 = _mm_max_epi16(c1, D1); - const __m128i F = _mm_packs_epi16(E0, E1); - const __m128i G = _mm_min_epu8(F, kCst2); // context = 0,1,2 - const __m128i H = _mm_min_epu8(F, kCst67); // clamp_level in [0..67] - - _mm_storeu_si128((__m128i*)&ctxs[0], G); - _mm_storeu_si128((__m128i*)&levels[0], H); - - _mm_storeu_si128((__m128i*)&abs_levels[0], E0); - _mm_storeu_si128((__m128i*)&abs_levels[8], E1); - } - for (; n < res->last; ++n) { - const int ctx = ctxs[n]; - const int level = levels[n]; - const int flevel = abs_levels[n]; // full level - cost += VP8LevelFixedCosts[flevel] + t[level]; // simplified VP8LevelCost() - t = costs[n + 1][ctx]; - } - // Last coefficient is always non-zero - { - const int level = levels[n]; - const int flevel = abs_levels[n]; - assert(flevel != 0); - cost += VP8LevelFixedCosts[flevel] + t[level]; - if (n < 15) { - const int b = VP8EncBands[n + 1]; - const int ctx = ctxs[n]; - const int last_p0 = res->prob[b][ctx][0]; - cost += VP8BitCost(0, last_p0); - } - } - return cost; -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8EncDspCostInitSSE2(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspCostInitSSE2(void) { - VP8SetResidualCoeffs = SetResidualCoeffsSSE2; - VP8GetResidualCost = GetResidualCostSSE2; -} - -#else // !WEBP_USE_SSE2 - -WEBP_DSP_INIT_STUB(VP8EncDspCostInitSSE2) - -#endif // WEBP_USE_SSE2 diff --git a/drivers/webp/dsp/cpu.c b/drivers/webp/dsp/cpu.c deleted file mode 100644 index cbb08db90a..0000000000 --- a/drivers/webp/dsp/cpu.c +++ /dev/null @@ -1,187 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// CPU detection -// -// Author: Christian Duvivier (cduvivier@google.com) - -#include "./dsp.h" - -#if defined(WEBP_HAVE_NEON_RTCD) -#include <stdio.h> -#include <string.h> -#endif - -#if defined(WEBP_ANDROID_NEON) -#include <cpu-features.h> -#endif - -//------------------------------------------------------------------------------ -// SSE2 detection. -// - -// apple/darwin gcc-4.0.1 defines __PIC__, but not __pic__ with -fPIC. -#if (defined(__pic__) || defined(__PIC__)) && defined(__i386__) -static WEBP_INLINE void GetCPUInfo(int cpu_info[4], int info_type) { - __asm__ volatile ( - "mov %%ebx, %%edi\n" - "cpuid\n" - "xchg %%edi, %%ebx\n" - : "=a"(cpu_info[0]), "=D"(cpu_info[1]), "=c"(cpu_info[2]), "=d"(cpu_info[3]) - : "a"(info_type), "c"(0)); -} -#elif defined(__x86_64__) && \ - (defined(__code_model_medium__) || defined(__code_model_large__)) && \ - defined(__PIC__) -static WEBP_INLINE void GetCPUInfo(int cpu_info[4], int info_type) { - __asm__ volatile ( - "xchg{q}\t{%%rbx}, %q1\n" - "cpuid\n" - "xchg{q}\t{%%rbx}, %q1\n" - : "=a"(cpu_info[0]), "=&r"(cpu_info[1]), "=c"(cpu_info[2]), - "=d"(cpu_info[3]) - : "a"(info_type), "c"(0)); -} -#elif defined(__i386__) || defined(__x86_64__) -static WEBP_INLINE void GetCPUInfo(int cpu_info[4], int info_type) { - __asm__ volatile ( - "cpuid\n" - : "=a"(cpu_info[0]), "=b"(cpu_info[1]), "=c"(cpu_info[2]), "=d"(cpu_info[3]) - : "a"(info_type), "c"(0)); -} -#elif (defined(_M_X64) || defined(_M_IX86)) && \ - defined(_MSC_FULL_VER) && _MSC_FULL_VER >= 150030729 // >= VS2008 SP1 -#include <intrin.h> -#define GetCPUInfo(info, type) __cpuidex(info, type, 0) // set ecx=0 -#elif defined(WEBP_MSC_SSE2) -#define GetCPUInfo __cpuid -#endif - -// NaCl has no support for xgetbv or the raw opcode. -#if !defined(__native_client__) && (defined(__i386__) || defined(__x86_64__)) -static WEBP_INLINE uint64_t xgetbv(void) { - const uint32_t ecx = 0; - uint32_t eax, edx; - // Use the raw opcode for xgetbv for compatibility with older toolchains. - __asm__ volatile ( - ".byte 0x0f, 0x01, 0xd0\n" - : "=a"(eax), "=d"(edx) : "c" (ecx)); - return ((uint64_t)edx << 32) | eax; -} -#elif (defined(_M_X64) || defined(_M_IX86)) && \ - defined(_MSC_FULL_VER) && _MSC_FULL_VER >= 160040219 // >= VS2010 SP1 -#include <immintrin.h> -#define xgetbv() _xgetbv(0) -#elif defined(_MSC_VER) && defined(_M_IX86) -static WEBP_INLINE uint64_t xgetbv(void) { - uint32_t eax_, edx_; - __asm { - xor ecx, ecx // ecx = 0 - // Use the raw opcode for xgetbv for compatibility with older toolchains. - __asm _emit 0x0f __asm _emit 0x01 __asm _emit 0xd0 - mov eax_, eax - mov edx_, edx - } - return ((uint64_t)edx_ << 32) | eax_; -} -#else -#define xgetbv() 0U // no AVX for older x64 or unrecognized toolchains. -#endif - -#if defined(__i386__) || defined(__x86_64__) || defined(WEBP_MSC_SSE2) -static int x86CPUInfo(CPUFeature feature) { - int max_cpuid_value; - int cpu_info[4]; - - // get the highest feature value cpuid supports - GetCPUInfo(cpu_info, 0); - max_cpuid_value = cpu_info[0]; - if (max_cpuid_value < 1) { - return 0; - } - - GetCPUInfo(cpu_info, 1); - if (feature == kSSE2) { - return 0 != (cpu_info[3] & 0x04000000); - } - if (feature == kSSE3) { - return 0 != (cpu_info[2] & 0x00000001); - } - if (feature == kSSE4_1) { - return 0 != (cpu_info[2] & 0x00080000); - } - if (feature == kAVX) { - // bits 27 (OSXSAVE) & 28 (256-bit AVX) - if ((cpu_info[2] & 0x18000000) == 0x18000000) { - // XMM state and YMM state enabled by the OS. - return (xgetbv() & 0x6) == 0x6; - } - } - if (feature == kAVX2) { - if (x86CPUInfo(kAVX) && max_cpuid_value >= 7) { - GetCPUInfo(cpu_info, 7); - return ((cpu_info[1] & 0x00000020) == 0x00000020); - } - } - return 0; -} -VP8CPUInfo VP8GetCPUInfo = x86CPUInfo; -#elif defined(WEBP_ANDROID_NEON) // NB: needs to be before generic NEON test. -static int AndroidCPUInfo(CPUFeature feature) { - const AndroidCpuFamily cpu_family = android_getCpuFamily(); - const uint64_t cpu_features = android_getCpuFeatures(); - if (feature == kNEON) { - return (cpu_family == ANDROID_CPU_FAMILY_ARM && - 0 != (cpu_features & ANDROID_CPU_ARM_FEATURE_NEON)); - } - return 0; -} -VP8CPUInfo VP8GetCPUInfo = AndroidCPUInfo; -#elif defined(WEBP_USE_NEON) -// define a dummy function to enable turning off NEON at runtime by setting -// VP8DecGetCPUInfo = NULL -static int armCPUInfo(CPUFeature feature) { - if (feature != kNEON) return 0; -#if defined(__linux__) && defined(WEBP_HAVE_NEON_RTCD) - { - int has_neon = 0; - char line[200]; - FILE* const cpuinfo = fopen("/proc/cpuinfo", "r"); - if (cpuinfo == NULL) return 0; - while (fgets(line, sizeof(line), cpuinfo)) { - if (!strncmp(line, "Features", 8)) { - if (strstr(line, " neon ") != NULL) { - has_neon = 1; - break; - } - } - } - fclose(cpuinfo); - return has_neon; - } -#else - return 1; -#endif -} -VP8CPUInfo VP8GetCPUInfo = armCPUInfo; -#elif defined(WEBP_USE_MIPS32) || defined(WEBP_USE_MIPS_DSP_R2) || \ - defined(WEBP_USE_MSA) -static int mipsCPUInfo(CPUFeature feature) { - if ((feature == kMIPS32) || (feature == kMIPSdspR2) || (feature == kMSA)) { - return 1; - } else { - return 0; - } - -} -VP8CPUInfo VP8GetCPUInfo = mipsCPUInfo; -#else -VP8CPUInfo VP8GetCPUInfo = NULL; -#endif - diff --git a/drivers/webp/dsp/dec.c b/drivers/webp/dsp/dec.c deleted file mode 100644 index e92d693362..0000000000 --- a/drivers/webp/dsp/dec.c +++ /dev/null @@ -1,795 +0,0 @@ -// Copyright 2010 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Speed-critical decoding functions, default plain-C implementations. -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./dsp.h" -#include "../dec/vp8i.h" -#include "../utils/utils.h" - -//------------------------------------------------------------------------------ - -static WEBP_INLINE uint8_t clip_8b(int v) { - return (!(v & ~0xff)) ? v : (v < 0) ? 0 : 255; -} - -//------------------------------------------------------------------------------ -// Transforms (Paragraph 14.4) - -#define STORE(x, y, v) \ - dst[x + y * BPS] = clip_8b(dst[x + y * BPS] + ((v) >> 3)) - -#define STORE2(y, dc, d, c) do { \ - const int DC = (dc); \ - STORE(0, y, DC + (d)); \ - STORE(1, y, DC + (c)); \ - STORE(2, y, DC - (c)); \ - STORE(3, y, DC - (d)); \ -} while (0) - -#define MUL1(a) ((((a) * 20091) >> 16) + (a)) -#define MUL2(a) (((a) * 35468) >> 16) - -static void TransformOne(const int16_t* in, uint8_t* dst) { - int C[4 * 4], *tmp; - int i; - tmp = C; - for (i = 0; i < 4; ++i) { // vertical pass - const int a = in[0] + in[8]; // [-4096, 4094] - const int b = in[0] - in[8]; // [-4095, 4095] - const int c = MUL2(in[4]) - MUL1(in[12]); // [-3783, 3783] - const int d = MUL1(in[4]) + MUL2(in[12]); // [-3785, 3781] - tmp[0] = a + d; // [-7881, 7875] - tmp[1] = b + c; // [-7878, 7878] - tmp[2] = b - c; // [-7878, 7878] - tmp[3] = a - d; // [-7877, 7879] - tmp += 4; - in++; - } - // Each pass is expanding the dynamic range by ~3.85 (upper bound). - // The exact value is (2. + (20091 + 35468) / 65536). - // After the second pass, maximum interval is [-3794, 3794], assuming - // an input in [-2048, 2047] interval. We then need to add a dst value - // in the [0, 255] range. - // In the worst case scenario, the input to clip_8b() can be as large as - // [-60713, 60968]. - tmp = C; - for (i = 0; i < 4; ++i) { // horizontal pass - const int dc = tmp[0] + 4; - const int a = dc + tmp[8]; - const int b = dc - tmp[8]; - const int c = MUL2(tmp[4]) - MUL1(tmp[12]); - const int d = MUL1(tmp[4]) + MUL2(tmp[12]); - STORE(0, 0, a + d); - STORE(1, 0, b + c); - STORE(2, 0, b - c); - STORE(3, 0, a - d); - tmp++; - dst += BPS; - } -} - -// Simplified transform when only in[0], in[1] and in[4] are non-zero -static void TransformAC3(const int16_t* in, uint8_t* dst) { - const int a = in[0] + 4; - const int c4 = MUL2(in[4]); - const int d4 = MUL1(in[4]); - const int c1 = MUL2(in[1]); - const int d1 = MUL1(in[1]); - STORE2(0, a + d4, d1, c1); - STORE2(1, a + c4, d1, c1); - STORE2(2, a - c4, d1, c1); - STORE2(3, a - d4, d1, c1); -} -#undef MUL1 -#undef MUL2 -#undef STORE2 - -static void TransformTwo(const int16_t* in, uint8_t* dst, int do_two) { - TransformOne(in, dst); - if (do_two) { - TransformOne(in + 16, dst + 4); - } -} - -static void TransformUV(const int16_t* in, uint8_t* dst) { - VP8Transform(in + 0 * 16, dst, 1); - VP8Transform(in + 2 * 16, dst + 4 * BPS, 1); -} - -static void TransformDC(const int16_t* in, uint8_t* dst) { - const int DC = in[0] + 4; - int i, j; - for (j = 0; j < 4; ++j) { - for (i = 0; i < 4; ++i) { - STORE(i, j, DC); - } - } -} - -static void TransformDCUV(const int16_t* in, uint8_t* dst) { - if (in[0 * 16]) VP8TransformDC(in + 0 * 16, dst); - if (in[1 * 16]) VP8TransformDC(in + 1 * 16, dst + 4); - if (in[2 * 16]) VP8TransformDC(in + 2 * 16, dst + 4 * BPS); - if (in[3 * 16]) VP8TransformDC(in + 3 * 16, dst + 4 * BPS + 4); -} - -#undef STORE - -//------------------------------------------------------------------------------ -// Paragraph 14.3 - -static void TransformWHT(const int16_t* in, int16_t* out) { - int tmp[16]; - int i; - for (i = 0; i < 4; ++i) { - const int a0 = in[0 + i] + in[12 + i]; - const int a1 = in[4 + i] + in[ 8 + i]; - const int a2 = in[4 + i] - in[ 8 + i]; - const int a3 = in[0 + i] - in[12 + i]; - tmp[0 + i] = a0 + a1; - tmp[8 + i] = a0 - a1; - tmp[4 + i] = a3 + a2; - tmp[12 + i] = a3 - a2; - } - for (i = 0; i < 4; ++i) { - const int dc = tmp[0 + i * 4] + 3; // w/ rounder - const int a0 = dc + tmp[3 + i * 4]; - const int a1 = tmp[1 + i * 4] + tmp[2 + i * 4]; - const int a2 = tmp[1 + i * 4] - tmp[2 + i * 4]; - const int a3 = dc - tmp[3 + i * 4]; - out[ 0] = (a0 + a1) >> 3; - out[16] = (a3 + a2) >> 3; - out[32] = (a0 - a1) >> 3; - out[48] = (a3 - a2) >> 3; - out += 64; - } -} - -void (*VP8TransformWHT)(const int16_t* in, int16_t* out); - -//------------------------------------------------------------------------------ -// Intra predictions - -#define DST(x, y) dst[(x) + (y) * BPS] - -static WEBP_INLINE void TrueMotion(uint8_t* dst, int size) { - const uint8_t* top = dst - BPS; - const uint8_t* const clip0 = VP8kclip1 - top[-1]; - int y; - for (y = 0; y < size; ++y) { - const uint8_t* const clip = clip0 + dst[-1]; - int x; - for (x = 0; x < size; ++x) { - dst[x] = clip[top[x]]; - } - dst += BPS; - } -} -static void TM4(uint8_t* dst) { TrueMotion(dst, 4); } -static void TM8uv(uint8_t* dst) { TrueMotion(dst, 8); } -static void TM16(uint8_t* dst) { TrueMotion(dst, 16); } - -//------------------------------------------------------------------------------ -// 16x16 - -static void VE16(uint8_t* dst) { // vertical - int j; - for (j = 0; j < 16; ++j) { - memcpy(dst + j * BPS, dst - BPS, 16); - } -} - -static void HE16(uint8_t* dst) { // horizontal - int j; - for (j = 16; j > 0; --j) { - memset(dst, dst[-1], 16); - dst += BPS; - } -} - -static WEBP_INLINE void Put16(int v, uint8_t* dst) { - int j; - for (j = 0; j < 16; ++j) { - memset(dst + j * BPS, v, 16); - } -} - -static void DC16(uint8_t* dst) { // DC - int DC = 16; - int j; - for (j = 0; j < 16; ++j) { - DC += dst[-1 + j * BPS] + dst[j - BPS]; - } - Put16(DC >> 5, dst); -} - -static void DC16NoTop(uint8_t* dst) { // DC with top samples not available - int DC = 8; - int j; - for (j = 0; j < 16; ++j) { - DC += dst[-1 + j * BPS]; - } - Put16(DC >> 4, dst); -} - -static void DC16NoLeft(uint8_t* dst) { // DC with left samples not available - int DC = 8; - int i; - for (i = 0; i < 16; ++i) { - DC += dst[i - BPS]; - } - Put16(DC >> 4, dst); -} - -static void DC16NoTopLeft(uint8_t* dst) { // DC with no top and left samples - Put16(0x80, dst); -} - -VP8PredFunc VP8PredLuma16[NUM_B_DC_MODES]; - -//------------------------------------------------------------------------------ -// 4x4 - -#define AVG3(a, b, c) (((a) + 2 * (b) + (c) + 2) >> 2) -#define AVG2(a, b) (((a) + (b) + 1) >> 1) - -static void VE4(uint8_t* dst) { // vertical - const uint8_t* top = dst - BPS; - const uint8_t vals[4] = { - AVG3(top[-1], top[0], top[1]), - AVG3(top[ 0], top[1], top[2]), - AVG3(top[ 1], top[2], top[3]), - AVG3(top[ 2], top[3], top[4]) - }; - int i; - for (i = 0; i < 4; ++i) { - memcpy(dst + i * BPS, vals, sizeof(vals)); - } -} - -static void HE4(uint8_t* dst) { // horizontal - const int A = dst[-1 - BPS]; - const int B = dst[-1]; - const int C = dst[-1 + BPS]; - const int D = dst[-1 + 2 * BPS]; - const int E = dst[-1 + 3 * BPS]; - WebPUint32ToMem(dst + 0 * BPS, 0x01010101U * AVG3(A, B, C)); - WebPUint32ToMem(dst + 1 * BPS, 0x01010101U * AVG3(B, C, D)); - WebPUint32ToMem(dst + 2 * BPS, 0x01010101U * AVG3(C, D, E)); - WebPUint32ToMem(dst + 3 * BPS, 0x01010101U * AVG3(D, E, E)); -} - -static void DC4(uint8_t* dst) { // DC - uint32_t dc = 4; - int i; - for (i = 0; i < 4; ++i) dc += dst[i - BPS] + dst[-1 + i * BPS]; - dc >>= 3; - for (i = 0; i < 4; ++i) memset(dst + i * BPS, dc, 4); -} - -static void RD4(uint8_t* dst) { // Down-right - const int I = dst[-1 + 0 * BPS]; - const int J = dst[-1 + 1 * BPS]; - const int K = dst[-1 + 2 * BPS]; - const int L = dst[-1 + 3 * BPS]; - const int X = dst[-1 - BPS]; - const int A = dst[0 - BPS]; - const int B = dst[1 - BPS]; - const int C = dst[2 - BPS]; - const int D = dst[3 - BPS]; - DST(0, 3) = AVG3(J, K, L); - DST(1, 3) = DST(0, 2) = AVG3(I, J, K); - DST(2, 3) = DST(1, 2) = DST(0, 1) = AVG3(X, I, J); - DST(3, 3) = DST(2, 2) = DST(1, 1) = DST(0, 0) = AVG3(A, X, I); - DST(3, 2) = DST(2, 1) = DST(1, 0) = AVG3(B, A, X); - DST(3, 1) = DST(2, 0) = AVG3(C, B, A); - DST(3, 0) = AVG3(D, C, B); -} - -static void LD4(uint8_t* dst) { // Down-Left - const int A = dst[0 - BPS]; - const int B = dst[1 - BPS]; - const int C = dst[2 - BPS]; - const int D = dst[3 - BPS]; - const int E = dst[4 - BPS]; - const int F = dst[5 - BPS]; - const int G = dst[6 - BPS]; - const int H = dst[7 - BPS]; - DST(0, 0) = AVG3(A, B, C); - DST(1, 0) = DST(0, 1) = AVG3(B, C, D); - DST(2, 0) = DST(1, 1) = DST(0, 2) = AVG3(C, D, E); - DST(3, 0) = DST(2, 1) = DST(1, 2) = DST(0, 3) = AVG3(D, E, F); - DST(3, 1) = DST(2, 2) = DST(1, 3) = AVG3(E, F, G); - DST(3, 2) = DST(2, 3) = AVG3(F, G, H); - DST(3, 3) = AVG3(G, H, H); -} - -static void VR4(uint8_t* dst) { // Vertical-Right - const int I = dst[-1 + 0 * BPS]; - const int J = dst[-1 + 1 * BPS]; - const int K = dst[-1 + 2 * BPS]; - const int X = dst[-1 - BPS]; - const int A = dst[0 - BPS]; - const int B = dst[1 - BPS]; - const int C = dst[2 - BPS]; - const int D = dst[3 - BPS]; - DST(0, 0) = DST(1, 2) = AVG2(X, A); - DST(1, 0) = DST(2, 2) = AVG2(A, B); - DST(2, 0) = DST(3, 2) = AVG2(B, C); - DST(3, 0) = AVG2(C, D); - - DST(0, 3) = AVG3(K, J, I); - DST(0, 2) = AVG3(J, I, X); - DST(0, 1) = DST(1, 3) = AVG3(I, X, A); - DST(1, 1) = DST(2, 3) = AVG3(X, A, B); - DST(2, 1) = DST(3, 3) = AVG3(A, B, C); - DST(3, 1) = AVG3(B, C, D); -} - -static void VL4(uint8_t* dst) { // Vertical-Left - const int A = dst[0 - BPS]; - const int B = dst[1 - BPS]; - const int C = dst[2 - BPS]; - const int D = dst[3 - BPS]; - const int E = dst[4 - BPS]; - const int F = dst[5 - BPS]; - const int G = dst[6 - BPS]; - const int H = dst[7 - BPS]; - DST(0, 0) = AVG2(A, B); - DST(1, 0) = DST(0, 2) = AVG2(B, C); - DST(2, 0) = DST(1, 2) = AVG2(C, D); - DST(3, 0) = DST(2, 2) = AVG2(D, E); - - DST(0, 1) = AVG3(A, B, C); - DST(1, 1) = DST(0, 3) = AVG3(B, C, D); - DST(2, 1) = DST(1, 3) = AVG3(C, D, E); - DST(3, 1) = DST(2, 3) = AVG3(D, E, F); - DST(3, 2) = AVG3(E, F, G); - DST(3, 3) = AVG3(F, G, H); -} - -static void HU4(uint8_t* dst) { // Horizontal-Up - const int I = dst[-1 + 0 * BPS]; - const int J = dst[-1 + 1 * BPS]; - const int K = dst[-1 + 2 * BPS]; - const int L = dst[-1 + 3 * BPS]; - DST(0, 0) = AVG2(I, J); - DST(2, 0) = DST(0, 1) = AVG2(J, K); - DST(2, 1) = DST(0, 2) = AVG2(K, L); - DST(1, 0) = AVG3(I, J, K); - DST(3, 0) = DST(1, 1) = AVG3(J, K, L); - DST(3, 1) = DST(1, 2) = AVG3(K, L, L); - DST(3, 2) = DST(2, 2) = - DST(0, 3) = DST(1, 3) = DST(2, 3) = DST(3, 3) = L; -} - -static void HD4(uint8_t* dst) { // Horizontal-Down - const int I = dst[-1 + 0 * BPS]; - const int J = dst[-1 + 1 * BPS]; - const int K = dst[-1 + 2 * BPS]; - const int L = dst[-1 + 3 * BPS]; - const int X = dst[-1 - BPS]; - const int A = dst[0 - BPS]; - const int B = dst[1 - BPS]; - const int C = dst[2 - BPS]; - - DST(0, 0) = DST(2, 1) = AVG2(I, X); - DST(0, 1) = DST(2, 2) = AVG2(J, I); - DST(0, 2) = DST(2, 3) = AVG2(K, J); - DST(0, 3) = AVG2(L, K); - - DST(3, 0) = AVG3(A, B, C); - DST(2, 0) = AVG3(X, A, B); - DST(1, 0) = DST(3, 1) = AVG3(I, X, A); - DST(1, 1) = DST(3, 2) = AVG3(J, I, X); - DST(1, 2) = DST(3, 3) = AVG3(K, J, I); - DST(1, 3) = AVG3(L, K, J); -} - -#undef DST -#undef AVG3 -#undef AVG2 - -VP8PredFunc VP8PredLuma4[NUM_BMODES]; - -//------------------------------------------------------------------------------ -// Chroma - -static void VE8uv(uint8_t* dst) { // vertical - int j; - for (j = 0; j < 8; ++j) { - memcpy(dst + j * BPS, dst - BPS, 8); - } -} - -static void HE8uv(uint8_t* dst) { // horizontal - int j; - for (j = 0; j < 8; ++j) { - memset(dst, dst[-1], 8); - dst += BPS; - } -} - -// helper for chroma-DC predictions -static WEBP_INLINE void Put8x8uv(uint8_t value, uint8_t* dst) { - int j; - for (j = 0; j < 8; ++j) { - memset(dst + j * BPS, value, 8); - } -} - -static void DC8uv(uint8_t* dst) { // DC - int dc0 = 8; - int i; - for (i = 0; i < 8; ++i) { - dc0 += dst[i - BPS] + dst[-1 + i * BPS]; - } - Put8x8uv(dc0 >> 4, dst); -} - -static void DC8uvNoLeft(uint8_t* dst) { // DC with no left samples - int dc0 = 4; - int i; - for (i = 0; i < 8; ++i) { - dc0 += dst[i - BPS]; - } - Put8x8uv(dc0 >> 3, dst); -} - -static void DC8uvNoTop(uint8_t* dst) { // DC with no top samples - int dc0 = 4; - int i; - for (i = 0; i < 8; ++i) { - dc0 += dst[-1 + i * BPS]; - } - Put8x8uv(dc0 >> 3, dst); -} - -static void DC8uvNoTopLeft(uint8_t* dst) { // DC with nothing - Put8x8uv(0x80, dst); -} - -VP8PredFunc VP8PredChroma8[NUM_B_DC_MODES]; - -//------------------------------------------------------------------------------ -// Edge filtering functions - -// 4 pixels in, 2 pixels out -static WEBP_INLINE void do_filter2(uint8_t* p, int step) { - const int p1 = p[-2*step], p0 = p[-step], q0 = p[0], q1 = p[step]; - const int a = 3 * (q0 - p0) + VP8ksclip1[p1 - q1]; // in [-893,892] - const int a1 = VP8ksclip2[(a + 4) >> 3]; // in [-16,15] - const int a2 = VP8ksclip2[(a + 3) >> 3]; - p[-step] = VP8kclip1[p0 + a2]; - p[ 0] = VP8kclip1[q0 - a1]; -} - -// 4 pixels in, 4 pixels out -static WEBP_INLINE void do_filter4(uint8_t* p, int step) { - const int p1 = p[-2*step], p0 = p[-step], q0 = p[0], q1 = p[step]; - const int a = 3 * (q0 - p0); - const int a1 = VP8ksclip2[(a + 4) >> 3]; - const int a2 = VP8ksclip2[(a + 3) >> 3]; - const int a3 = (a1 + 1) >> 1; - p[-2*step] = VP8kclip1[p1 + a3]; - p[- step] = VP8kclip1[p0 + a2]; - p[ 0] = VP8kclip1[q0 - a1]; - p[ step] = VP8kclip1[q1 - a3]; -} - -// 6 pixels in, 6 pixels out -static WEBP_INLINE void do_filter6(uint8_t* p, int step) { - const int p2 = p[-3*step], p1 = p[-2*step], p0 = p[-step]; - const int q0 = p[0], q1 = p[step], q2 = p[2*step]; - const int a = VP8ksclip1[3 * (q0 - p0) + VP8ksclip1[p1 - q1]]; - // a is in [-128,127], a1 in [-27,27], a2 in [-18,18] and a3 in [-9,9] - const int a1 = (27 * a + 63) >> 7; // eq. to ((3 * a + 7) * 9) >> 7 - const int a2 = (18 * a + 63) >> 7; // eq. to ((2 * a + 7) * 9) >> 7 - const int a3 = (9 * a + 63) >> 7; // eq. to ((1 * a + 7) * 9) >> 7 - p[-3*step] = VP8kclip1[p2 + a3]; - p[-2*step] = VP8kclip1[p1 + a2]; - p[- step] = VP8kclip1[p0 + a1]; - p[ 0] = VP8kclip1[q0 - a1]; - p[ step] = VP8kclip1[q1 - a2]; - p[ 2*step] = VP8kclip1[q2 - a3]; -} - -static WEBP_INLINE int hev(const uint8_t* p, int step, int thresh) { - const int p1 = p[-2*step], p0 = p[-step], q0 = p[0], q1 = p[step]; - return (VP8kabs0[p1 - p0] > thresh) || (VP8kabs0[q1 - q0] > thresh); -} - -static WEBP_INLINE int needs_filter(const uint8_t* p, int step, int t) { - const int p1 = p[-2 * step], p0 = p[-step], q0 = p[0], q1 = p[step]; - return ((4 * VP8kabs0[p0 - q0] + VP8kabs0[p1 - q1]) <= t); -} - -static WEBP_INLINE int needs_filter2(const uint8_t* p, - int step, int t, int it) { - const int p3 = p[-4 * step], p2 = p[-3 * step], p1 = p[-2 * step]; - const int p0 = p[-step], q0 = p[0]; - const int q1 = p[step], q2 = p[2 * step], q3 = p[3 * step]; - if ((4 * VP8kabs0[p0 - q0] + VP8kabs0[p1 - q1]) > t) return 0; - return VP8kabs0[p3 - p2] <= it && VP8kabs0[p2 - p1] <= it && - VP8kabs0[p1 - p0] <= it && VP8kabs0[q3 - q2] <= it && - VP8kabs0[q2 - q1] <= it && VP8kabs0[q1 - q0] <= it; -} - -//------------------------------------------------------------------------------ -// Simple In-loop filtering (Paragraph 15.2) - -static void SimpleVFilter16(uint8_t* p, int stride, int thresh) { - int i; - const int thresh2 = 2 * thresh + 1; - for (i = 0; i < 16; ++i) { - if (needs_filter(p + i, stride, thresh2)) { - do_filter2(p + i, stride); - } - } -} - -static void SimpleHFilter16(uint8_t* p, int stride, int thresh) { - int i; - const int thresh2 = 2 * thresh + 1; - for (i = 0; i < 16; ++i) { - if (needs_filter(p + i * stride, 1, thresh2)) { - do_filter2(p + i * stride, 1); - } - } -} - -static void SimpleVFilter16i(uint8_t* p, int stride, int thresh) { - int k; - for (k = 3; k > 0; --k) { - p += 4 * stride; - SimpleVFilter16(p, stride, thresh); - } -} - -static void SimpleHFilter16i(uint8_t* p, int stride, int thresh) { - int k; - for (k = 3; k > 0; --k) { - p += 4; - SimpleHFilter16(p, stride, thresh); - } -} - -//------------------------------------------------------------------------------ -// Complex In-loop filtering (Paragraph 15.3) - -static WEBP_INLINE void FilterLoop26(uint8_t* p, - int hstride, int vstride, int size, - int thresh, int ithresh, int hev_thresh) { - const int thresh2 = 2 * thresh + 1; - while (size-- > 0) { - if (needs_filter2(p, hstride, thresh2, ithresh)) { - if (hev(p, hstride, hev_thresh)) { - do_filter2(p, hstride); - } else { - do_filter6(p, hstride); - } - } - p += vstride; - } -} - -static WEBP_INLINE void FilterLoop24(uint8_t* p, - int hstride, int vstride, int size, - int thresh, int ithresh, int hev_thresh) { - const int thresh2 = 2 * thresh + 1; - while (size-- > 0) { - if (needs_filter2(p, hstride, thresh2, ithresh)) { - if (hev(p, hstride, hev_thresh)) { - do_filter2(p, hstride); - } else { - do_filter4(p, hstride); - } - } - p += vstride; - } -} - -// on macroblock edges -static void VFilter16(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop26(p, stride, 1, 16, thresh, ithresh, hev_thresh); -} - -static void HFilter16(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop26(p, 1, stride, 16, thresh, ithresh, hev_thresh); -} - -// on three inner edges -static void VFilter16i(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - int k; - for (k = 3; k > 0; --k) { - p += 4 * stride; - FilterLoop24(p, stride, 1, 16, thresh, ithresh, hev_thresh); - } -} - -static void HFilter16i(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - int k; - for (k = 3; k > 0; --k) { - p += 4; - FilterLoop24(p, 1, stride, 16, thresh, ithresh, hev_thresh); - } -} - -// 8-pixels wide variant, for chroma filtering -static void VFilter8(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop26(u, stride, 1, 8, thresh, ithresh, hev_thresh); - FilterLoop26(v, stride, 1, 8, thresh, ithresh, hev_thresh); -} - -static void HFilter8(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop26(u, 1, stride, 8, thresh, ithresh, hev_thresh); - FilterLoop26(v, 1, stride, 8, thresh, ithresh, hev_thresh); -} - -static void VFilter8i(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop24(u + 4 * stride, stride, 1, 8, thresh, ithresh, hev_thresh); - FilterLoop24(v + 4 * stride, stride, 1, 8, thresh, ithresh, hev_thresh); -} - -static void HFilter8i(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop24(u + 4, 1, stride, 8, thresh, ithresh, hev_thresh); - FilterLoop24(v + 4, 1, stride, 8, thresh, ithresh, hev_thresh); -} - -//------------------------------------------------------------------------------ - -static void DitherCombine8x8(const uint8_t* dither, uint8_t* dst, - int dst_stride) { - int i, j; - for (j = 0; j < 8; ++j) { - for (i = 0; i < 8; ++i) { - const int delta0 = dither[i] - VP8_DITHER_AMP_CENTER; - const int delta1 = - (delta0 + VP8_DITHER_DESCALE_ROUNDER) >> VP8_DITHER_DESCALE; - dst[i] = clip_8b((int)dst[i] + delta1); - } - dst += dst_stride; - dither += 8; - } -} - -//------------------------------------------------------------------------------ - -VP8DecIdct2 VP8Transform; -VP8DecIdct VP8TransformAC3; -VP8DecIdct VP8TransformUV; -VP8DecIdct VP8TransformDC; -VP8DecIdct VP8TransformDCUV; - -VP8LumaFilterFunc VP8VFilter16; -VP8LumaFilterFunc VP8HFilter16; -VP8ChromaFilterFunc VP8VFilter8; -VP8ChromaFilterFunc VP8HFilter8; -VP8LumaFilterFunc VP8VFilter16i; -VP8LumaFilterFunc VP8HFilter16i; -VP8ChromaFilterFunc VP8VFilter8i; -VP8ChromaFilterFunc VP8HFilter8i; -VP8SimpleFilterFunc VP8SimpleVFilter16; -VP8SimpleFilterFunc VP8SimpleHFilter16; -VP8SimpleFilterFunc VP8SimpleVFilter16i; -VP8SimpleFilterFunc VP8SimpleHFilter16i; - -void (*VP8DitherCombine8x8)(const uint8_t* dither, uint8_t* dst, - int dst_stride); - -extern void VP8DspInitSSE2(void); -extern void VP8DspInitSSE41(void); -extern void VP8DspInitNEON(void); -extern void VP8DspInitMIPS32(void); -extern void VP8DspInitMIPSdspR2(void); -extern void VP8DspInitMSA(void); - -static volatile VP8CPUInfo dec_last_cpuinfo_used = - (VP8CPUInfo)&dec_last_cpuinfo_used; - -WEBP_TSAN_IGNORE_FUNCTION void VP8DspInit(void) { - if (dec_last_cpuinfo_used == VP8GetCPUInfo) return; - - VP8InitClipTables(); - - VP8TransformWHT = TransformWHT; - VP8Transform = TransformTwo; - VP8TransformUV = TransformUV; - VP8TransformDC = TransformDC; - VP8TransformDCUV = TransformDCUV; - VP8TransformAC3 = TransformAC3; - - VP8VFilter16 = VFilter16; - VP8HFilter16 = HFilter16; - VP8VFilter8 = VFilter8; - VP8HFilter8 = HFilter8; - VP8VFilter16i = VFilter16i; - VP8HFilter16i = HFilter16i; - VP8VFilter8i = VFilter8i; - VP8HFilter8i = HFilter8i; - VP8SimpleVFilter16 = SimpleVFilter16; - VP8SimpleHFilter16 = SimpleHFilter16; - VP8SimpleVFilter16i = SimpleVFilter16i; - VP8SimpleHFilter16i = SimpleHFilter16i; - - VP8PredLuma4[0] = DC4; - VP8PredLuma4[1] = TM4; - VP8PredLuma4[2] = VE4; - VP8PredLuma4[3] = HE4; - VP8PredLuma4[4] = RD4; - VP8PredLuma4[5] = VR4; - VP8PredLuma4[6] = LD4; - VP8PredLuma4[7] = VL4; - VP8PredLuma4[8] = HD4; - VP8PredLuma4[9] = HU4; - - VP8PredLuma16[0] = DC16; - VP8PredLuma16[1] = TM16; - VP8PredLuma16[2] = VE16; - VP8PredLuma16[3] = HE16; - VP8PredLuma16[4] = DC16NoTop; - VP8PredLuma16[5] = DC16NoLeft; - VP8PredLuma16[6] = DC16NoTopLeft; - - VP8PredChroma8[0] = DC8uv; - VP8PredChroma8[1] = TM8uv; - VP8PredChroma8[2] = VE8uv; - VP8PredChroma8[3] = HE8uv; - VP8PredChroma8[4] = DC8uvNoTop; - VP8PredChroma8[5] = DC8uvNoLeft; - VP8PredChroma8[6] = DC8uvNoTopLeft; - - VP8DitherCombine8x8 = DitherCombine8x8; - - // If defined, use CPUInfo() to overwrite some pointers with faster versions. - if (VP8GetCPUInfo != NULL) { -#if defined(WEBP_USE_SSE2) - if (VP8GetCPUInfo(kSSE2)) { - VP8DspInitSSE2(); -#if defined(WEBP_USE_SSE41) - if (VP8GetCPUInfo(kSSE4_1)) { - VP8DspInitSSE41(); - } -#endif - } -#endif -#if defined(WEBP_USE_NEON) - if (VP8GetCPUInfo(kNEON)) { - VP8DspInitNEON(); - } -#endif -#if defined(WEBP_USE_MIPS32) - if (VP8GetCPUInfo(kMIPS32)) { - VP8DspInitMIPS32(); - } -#endif -#if defined(WEBP_USE_MIPS_DSP_R2) - if (VP8GetCPUInfo(kMIPSdspR2)) { - VP8DspInitMIPSdspR2(); - } -#endif -#if defined(WEBP_USE_MSA) - if (VP8GetCPUInfo(kMSA)) { - VP8DspInitMSA(); - } -#endif - } - dec_last_cpuinfo_used = VP8GetCPUInfo; -} diff --git a/drivers/webp/dsp/dec_clip_tables.c b/drivers/webp/dsp/dec_clip_tables.c deleted file mode 100644 index 3b6dde86ba..0000000000 --- a/drivers/webp/dsp/dec_clip_tables.c +++ /dev/null @@ -1,366 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Clipping tables for filtering -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./dsp.h" - -#define USE_STATIC_TABLES // undefine to have run-time table initialization - -#ifdef USE_STATIC_TABLES - -static const uint8_t abs0[255 + 255 + 1] = { - 0xff, 0xfe, 0xfd, 0xfc, 0xfb, 0xfa, 0xf9, 0xf8, 0xf7, 0xf6, 0xf5, 0xf4, - 0xf3, 0xf2, 0xf1, 0xf0, 0xef, 0xee, 0xed, 0xec, 0xeb, 0xea, 0xe9, 0xe8, - 0xe7, 0xe6, 0xe5, 0xe4, 0xe3, 0xe2, 0xe1, 0xe0, 0xdf, 0xde, 0xdd, 0xdc, - 0xdb, 0xda, 0xd9, 0xd8, 0xd7, 0xd6, 0xd5, 0xd4, 0xd3, 0xd2, 0xd1, 0xd0, - 0xcf, 0xce, 0xcd, 0xcc, 0xcb, 0xca, 0xc9, 0xc8, 0xc7, 0xc6, 0xc5, 0xc4, - 0xc3, 0xc2, 0xc1, 0xc0, 0xbf, 0xbe, 0xbd, 0xbc, 0xbb, 0xba, 0xb9, 0xb8, - 0xb7, 0xb6, 0xb5, 0xb4, 0xb3, 0xb2, 0xb1, 0xb0, 0xaf, 0xae, 0xad, 0xac, - 0xab, 0xaa, 0xa9, 0xa8, 0xa7, 0xa6, 0xa5, 0xa4, 0xa3, 0xa2, 0xa1, 0xa0, - 0x9f, 0x9e, 0x9d, 0x9c, 0x9b, 0x9a, 0x99, 0x98, 0x97, 0x96, 0x95, 0x94, - 0x93, 0x92, 0x91, 0x90, 0x8f, 0x8e, 0x8d, 0x8c, 0x8b, 0x8a, 0x89, 0x88, - 0x87, 0x86, 0x85, 0x84, 0x83, 0x82, 0x81, 0x80, 0x7f, 0x7e, 0x7d, 0x7c, - 0x7b, 0x7a, 0x79, 0x78, 0x77, 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x70, - 0x6f, 0x6e, 0x6d, 0x6c, 0x6b, 0x6a, 0x69, 0x68, 0x67, 0x66, 0x65, 0x64, - 0x63, 0x62, 0x61, 0x60, 0x5f, 0x5e, 0x5d, 0x5c, 0x5b, 0x5a, 0x59, 0x58, - 0x57, 0x56, 0x55, 0x54, 0x53, 0x52, 0x51, 0x50, 0x4f, 0x4e, 0x4d, 0x4c, - 0x4b, 0x4a, 0x49, 0x48, 0x47, 0x46, 0x45, 0x44, 0x43, 0x42, 0x41, 0x40, - 0x3f, 0x3e, 0x3d, 0x3c, 0x3b, 0x3a, 0x39, 0x38, 0x37, 0x36, 0x35, 0x34, - 0x33, 0x32, 0x31, 0x30, 0x2f, 0x2e, 0x2d, 0x2c, 0x2b, 0x2a, 0x29, 0x28, - 0x27, 0x26, 0x25, 0x24, 0x23, 0x22, 0x21, 0x20, 0x1f, 0x1e, 0x1d, 0x1c, - 0x1b, 0x1a, 0x19, 0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, - 0x0f, 0x0e, 0x0d, 0x0c, 0x0b, 0x0a, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, - 0x03, 0x02, 0x01, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, - 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, - 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, - 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, - 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, - 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, - 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, - 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, - 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, - 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, - 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, - 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, - 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, - 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, - 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, - 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, - 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, - 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, - 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xe0, - 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, - 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, - 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff -}; - -static const int8_t sclip1[1020 + 1020 + 1] = { - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, - 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0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, - 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, - 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, - 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, - 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, - 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, - 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, - 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, - 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f -}; - -static const int8_t sclip2[112 + 112 + 1] = { - 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, - 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, - 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, - 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, - 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, - 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, - 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, - 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, - 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, - 0xfc, 0xfd, 0xfe, 0xff, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, - 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, - 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, - 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, - 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, - 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, - 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, - 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, - 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, - 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f -}; - -static const uint8_t clip1[255 + 511 + 1] = { - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, - 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, - 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, - 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, - 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, - 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, - 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, - 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, - 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, - 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, - 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, - 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, - 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, - 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, - 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, - 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, - 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, - 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, - 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xe0, - 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, - 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, - 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff -}; - -#else - -// uninitialized tables -static uint8_t abs0[255 + 255 + 1]; -static int8_t sclip1[1020 + 1020 + 1]; -static int8_t sclip2[112 + 112 + 1]; -static uint8_t clip1[255 + 511 + 1]; - -// We declare this variable 'volatile' to prevent instruction reordering -// and make sure it's set to true _last_ (so as to be thread-safe) -static volatile int tables_ok = 0; - -#endif - -const int8_t* const VP8ksclip1 = &sclip1[1020]; -const int8_t* const VP8ksclip2 = &sclip2[112]; -const uint8_t* const VP8kclip1 = &clip1[255]; -const uint8_t* const VP8kabs0 = &abs0[255]; - -WEBP_TSAN_IGNORE_FUNCTION void VP8InitClipTables(void) { -#if !defined(USE_STATIC_TABLES) - int i; - if (!tables_ok) { - for (i = -255; i <= 255; ++i) { - abs0[255 + i] = (i < 0) ? -i : i; - } - for (i = -1020; i <= 1020; ++i) { - sclip1[1020 + i] = (i < -128) ? -128 : (i > 127) ? 127 : i; - } - for (i = -112; i <= 112; ++i) { - sclip2[112 + i] = (i < -16) ? -16 : (i > 15) ? 15 : i; - } - for (i = -255; i <= 255 + 255; ++i) { - clip1[255 + i] = (i < 0) ? 0 : (i > 255) ? 255 : i; - } - tables_ok = 1; - } -#endif // USE_STATIC_TABLES -} diff --git a/drivers/webp/dsp/dec_mips32.c b/drivers/webp/dsp/dec_mips32.c deleted file mode 100644 index 4e9ef42605..0000000000 --- a/drivers/webp/dsp/dec_mips32.c +++ /dev/null @@ -1,587 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// MIPS version of dsp functions -// -// Author(s): Djordje Pesut (djordje.pesut@imgtec.com) -// Jovan Zelincevic (jovan.zelincevic@imgtec.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_MIPS32) - -#include "./mips_macro.h" - -static const int kC1 = 20091 + (1 << 16); -static const int kC2 = 35468; - -static WEBP_INLINE int abs_mips32(int x) { - const int sign = x >> 31; - return (x ^ sign) - sign; -} - -// 4 pixels in, 2 pixels out -static WEBP_INLINE void do_filter2(uint8_t* p, int step) { - const int p1 = p[-2 * step], p0 = p[-step], q0 = p[0], q1 = p[step]; - const int a = 3 * (q0 - p0) + VP8ksclip1[p1 - q1]; - const int a1 = VP8ksclip2[(a + 4) >> 3]; - const int a2 = VP8ksclip2[(a + 3) >> 3]; - p[-step] = VP8kclip1[p0 + a2]; - p[ 0] = VP8kclip1[q0 - a1]; -} - -// 4 pixels in, 4 pixels out -static WEBP_INLINE void do_filter4(uint8_t* p, int step) { - const int p1 = p[-2 * step], p0 = p[-step], q0 = p[0], q1 = p[step]; - const int a = 3 * (q0 - p0); - const int a1 = VP8ksclip2[(a + 4) >> 3]; - const int a2 = VP8ksclip2[(a + 3) >> 3]; - const int a3 = (a1 + 1) >> 1; - p[-2 * step] = VP8kclip1[p1 + a3]; - p[- step] = VP8kclip1[p0 + a2]; - p[ 0] = VP8kclip1[q0 - a1]; - p[ step] = VP8kclip1[q1 - a3]; -} - -// 6 pixels in, 6 pixels out -static WEBP_INLINE void do_filter6(uint8_t* p, int step) { - const int p2 = p[-3 * step], p1 = p[-2 * step], p0 = p[-step]; - const int q0 = p[0], q1 = p[step], q2 = p[2 * step]; - const int a = VP8ksclip1[3 * (q0 - p0) + VP8ksclip1[p1 - q1]]; - // a is in [-128,127], a1 in [-27,27], a2 in [-18,18] and a3 in [-9,9] - const int a1 = (27 * a + 63) >> 7; // eq. to ((3 * a + 7) * 9) >> 7 - const int a2 = (18 * a + 63) >> 7; // eq. to ((2 * a + 7) * 9) >> 7 - const int a3 = (9 * a + 63) >> 7; // eq. to ((1 * a + 7) * 9) >> 7 - p[-3 * step] = VP8kclip1[p2 + a3]; - p[-2 * step] = VP8kclip1[p1 + a2]; - p[- step] = VP8kclip1[p0 + a1]; - p[ 0] = VP8kclip1[q0 - a1]; - p[ step] = VP8kclip1[q1 - a2]; - p[ 2 * step] = VP8kclip1[q2 - a3]; -} - -static WEBP_INLINE int hev(const uint8_t* p, int step, int thresh) { - const int p1 = p[-2 * step], p0 = p[-step], q0 = p[0], q1 = p[step]; - return (abs_mips32(p1 - p0) > thresh) || (abs_mips32(q1 - q0) > thresh); -} - -static WEBP_INLINE int needs_filter(const uint8_t* p, int step, int t) { - const int p1 = p[-2 * step], p0 = p[-step], q0 = p[0], q1 = p[step]; - return ((4 * abs_mips32(p0 - q0) + abs_mips32(p1 - q1)) <= t); -} - -static WEBP_INLINE int needs_filter2(const uint8_t* p, - int step, int t, int it) { - const int p3 = p[-4 * step], p2 = p[-3 * step]; - const int p1 = p[-2 * step], p0 = p[-step]; - const int q0 = p[0], q1 = p[step], q2 = p[2 * step], q3 = p[3 * step]; - if ((4 * abs_mips32(p0 - q0) + abs_mips32(p1 - q1)) > t) { - return 0; - } - return abs_mips32(p3 - p2) <= it && abs_mips32(p2 - p1) <= it && - abs_mips32(p1 - p0) <= it && abs_mips32(q3 - q2) <= it && - abs_mips32(q2 - q1) <= it && abs_mips32(q1 - q0) <= it; -} - -static WEBP_INLINE void FilterLoop26(uint8_t* p, - int hstride, int vstride, int size, - int thresh, int ithresh, int hev_thresh) { - const int thresh2 = 2 * thresh + 1; - while (size-- > 0) { - if (needs_filter2(p, hstride, thresh2, ithresh)) { - if (hev(p, hstride, hev_thresh)) { - do_filter2(p, hstride); - } else { - do_filter6(p, hstride); - } - } - p += vstride; - } -} - -static WEBP_INLINE void FilterLoop24(uint8_t* p, - int hstride, int vstride, int size, - int thresh, int ithresh, int hev_thresh) { - const int thresh2 = 2 * thresh + 1; - while (size-- > 0) { - if (needs_filter2(p, hstride, thresh2, ithresh)) { - if (hev(p, hstride, hev_thresh)) { - do_filter2(p, hstride); - } else { - do_filter4(p, hstride); - } - } - p += vstride; - } -} - -// on macroblock edges -static void VFilter16(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop26(p, stride, 1, 16, thresh, ithresh, hev_thresh); -} - -static void HFilter16(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop26(p, 1, stride, 16, thresh, ithresh, hev_thresh); -} - -// 8-pixels wide variant, for chroma filtering -static void VFilter8(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop26(u, stride, 1, 8, thresh, ithresh, hev_thresh); - FilterLoop26(v, stride, 1, 8, thresh, ithresh, hev_thresh); -} - -static void HFilter8(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop26(u, 1, stride, 8, thresh, ithresh, hev_thresh); - FilterLoop26(v, 1, stride, 8, thresh, ithresh, hev_thresh); -} - -static void VFilter8i(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop24(u + 4 * stride, stride, 1, 8, thresh, ithresh, hev_thresh); - FilterLoop24(v + 4 * stride, stride, 1, 8, thresh, ithresh, hev_thresh); -} - -static void HFilter8i(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop24(u + 4, 1, stride, 8, thresh, ithresh, hev_thresh); - FilterLoop24(v + 4, 1, stride, 8, thresh, ithresh, hev_thresh); -} - -// on three inner edges -static void VFilter16i(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - int k; - for (k = 3; k > 0; --k) { - p += 4 * stride; - FilterLoop24(p, stride, 1, 16, thresh, ithresh, hev_thresh); - } -} - -static void HFilter16i(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - int k; - for (k = 3; k > 0; --k) { - p += 4; - FilterLoop24(p, 1, stride, 16, thresh, ithresh, hev_thresh); - } -} - -//------------------------------------------------------------------------------ -// Simple In-loop filtering (Paragraph 15.2) - -static void SimpleVFilter16(uint8_t* p, int stride, int thresh) { - int i; - const int thresh2 = 2 * thresh + 1; - for (i = 0; i < 16; ++i) { - if (needs_filter(p + i, stride, thresh2)) { - do_filter2(p + i, stride); - } - } -} - -static void SimpleHFilter16(uint8_t* p, int stride, int thresh) { - int i; - const int thresh2 = 2 * thresh + 1; - for (i = 0; i < 16; ++i) { - if (needs_filter(p + i * stride, 1, thresh2)) { - do_filter2(p + i * stride, 1); - } - } -} - -static void SimpleVFilter16i(uint8_t* p, int stride, int thresh) { - int k; - for (k = 3; k > 0; --k) { - p += 4 * stride; - SimpleVFilter16(p, stride, thresh); - } -} - -static void SimpleHFilter16i(uint8_t* p, int stride, int thresh) { - int k; - for (k = 3; k > 0; --k) { - p += 4; - SimpleHFilter16(p, stride, thresh); - } -} - -static void TransformOne(const int16_t* in, uint8_t* dst) { - int temp0, temp1, temp2, temp3, temp4; - int temp5, temp6, temp7, temp8, temp9; - int temp10, temp11, temp12, temp13, temp14; - int temp15, temp16, temp17, temp18; - int16_t* p_in = (int16_t*)in; - - // loops unrolled and merged to avoid usage of tmp buffer - // and to reduce number of stalls. MUL macro is written - // in assembler and inlined - __asm__ volatile( - "lh %[temp0], 0(%[in]) \n\t" - "lh %[temp8], 16(%[in]) \n\t" - "lh %[temp4], 8(%[in]) \n\t" - "lh %[temp12], 24(%[in]) \n\t" - "addu %[temp16], %[temp0], %[temp8] \n\t" - "subu %[temp0], %[temp0], %[temp8] \n\t" - "mul %[temp8], %[temp4], %[kC2] \n\t" - "mul %[temp17], %[temp12], %[kC1] \n\t" - "mul %[temp4], %[temp4], %[kC1] \n\t" - "mul %[temp12], %[temp12], %[kC2] \n\t" - "lh %[temp1], 2(%[in]) \n\t" - "lh %[temp5], 10(%[in]) \n\t" - "lh %[temp9], 18(%[in]) \n\t" - "lh %[temp13], 26(%[in]) \n\t" - "sra %[temp8], %[temp8], 16 \n\t" - "sra %[temp17], %[temp17], 16 \n\t" - "sra %[temp4], %[temp4], 16 \n\t" - "sra %[temp12], %[temp12], 16 \n\t" - "lh %[temp2], 4(%[in]) \n\t" - "lh %[temp6], 12(%[in]) \n\t" - "lh %[temp10], 20(%[in]) \n\t" - "lh %[temp14], 28(%[in]) \n\t" - "subu %[temp17], %[temp8], %[temp17] \n\t" - "addu %[temp4], %[temp4], %[temp12] \n\t" - "addu %[temp8], %[temp16], %[temp4] \n\t" - "subu %[temp4], %[temp16], %[temp4] \n\t" - "addu %[temp16], %[temp1], %[temp9] \n\t" - "subu %[temp1], %[temp1], %[temp9] \n\t" - "lh %[temp3], 6(%[in]) \n\t" - "lh %[temp7], 14(%[in]) \n\t" - "lh %[temp11], 22(%[in]) \n\t" - "lh %[temp15], 30(%[in]) \n\t" - "addu %[temp12], %[temp0], %[temp17] \n\t" - "subu %[temp0], %[temp0], %[temp17] \n\t" - "mul %[temp9], %[temp5], %[kC2] \n\t" - "mul %[temp17], %[temp13], %[kC1] \n\t" - "mul %[temp5], %[temp5], %[kC1] \n\t" - "mul %[temp13], %[temp13], %[kC2] \n\t" - "sra %[temp9], %[temp9], 16 \n\t" - "sra %[temp17], %[temp17], 16 \n\t" - "subu %[temp17], %[temp9], %[temp17] \n\t" - "sra %[temp5], %[temp5], 16 \n\t" - "sra %[temp13], %[temp13], 16 \n\t" - "addu %[temp5], %[temp5], %[temp13] \n\t" - "addu %[temp13], %[temp1], %[temp17] \n\t" - "subu %[temp1], %[temp1], %[temp17] \n\t" - "mul %[temp17], %[temp14], %[kC1] \n\t" - "mul %[temp14], %[temp14], %[kC2] \n\t" - "addu %[temp9], %[temp16], %[temp5] \n\t" - "subu %[temp5], %[temp16], %[temp5] \n\t" - "addu %[temp16], %[temp2], %[temp10] \n\t" - "subu %[temp2], %[temp2], %[temp10] \n\t" - "mul %[temp10], %[temp6], %[kC2] \n\t" - "mul %[temp6], %[temp6], %[kC1] \n\t" - "sra %[temp17], %[temp17], 16 \n\t" - "sra %[temp14], %[temp14], 16 \n\t" - "sra %[temp10], %[temp10], 16 \n\t" - "sra %[temp6], %[temp6], 16 \n\t" - "subu %[temp17], %[temp10], %[temp17] \n\t" - "addu %[temp6], %[temp6], %[temp14] \n\t" - "addu %[temp10], %[temp16], %[temp6] \n\t" - "subu %[temp6], %[temp16], %[temp6] \n\t" - "addu %[temp14], %[temp2], %[temp17] \n\t" - "subu %[temp2], %[temp2], %[temp17] \n\t" - "mul %[temp17], %[temp15], %[kC1] \n\t" - "mul %[temp15], %[temp15], %[kC2] \n\t" - "addu %[temp16], %[temp3], %[temp11] \n\t" - "subu %[temp3], %[temp3], %[temp11] \n\t" - "mul %[temp11], %[temp7], %[kC2] \n\t" - "mul %[temp7], %[temp7], %[kC1] \n\t" - "addiu %[temp8], %[temp8], 4 \n\t" - "addiu %[temp12], %[temp12], 4 \n\t" - "addiu %[temp0], %[temp0], 4 \n\t" - "addiu %[temp4], %[temp4], 4 \n\t" - "sra %[temp17], %[temp17], 16 \n\t" - "sra %[temp15], %[temp15], 16 \n\t" - "sra %[temp11], %[temp11], 16 \n\t" - "sra %[temp7], %[temp7], 16 \n\t" - "subu %[temp17], %[temp11], %[temp17] \n\t" - "addu %[temp7], %[temp7], %[temp15] \n\t" - "addu %[temp15], %[temp3], %[temp17] \n\t" - "subu %[temp3], %[temp3], %[temp17] \n\t" - "addu %[temp11], %[temp16], %[temp7] \n\t" - "subu %[temp7], %[temp16], %[temp7] \n\t" - "addu %[temp16], %[temp8], %[temp10] \n\t" - "subu %[temp8], %[temp8], %[temp10] \n\t" - "mul %[temp10], %[temp9], %[kC2] \n\t" - "mul %[temp17], %[temp11], %[kC1] \n\t" - "mul %[temp9], %[temp9], %[kC1] \n\t" - "mul %[temp11], %[temp11], %[kC2] \n\t" - "sra %[temp10], %[temp10], 16 \n\t" - "sra %[temp17], %[temp17], 16 \n\t" - "sra %[temp9], %[temp9], 16 \n\t" - "sra %[temp11], %[temp11], 16 \n\t" - "subu %[temp17], %[temp10], %[temp17] \n\t" - "addu %[temp11], %[temp9], %[temp11] \n\t" - "addu %[temp10], %[temp12], %[temp14] \n\t" - "subu %[temp12], %[temp12], %[temp14] \n\t" - "mul %[temp14], %[temp13], %[kC2] \n\t" - "mul %[temp9], %[temp15], %[kC1] \n\t" - "mul %[temp13], %[temp13], %[kC1] \n\t" - "mul %[temp15], %[temp15], %[kC2] \n\t" - "sra %[temp14], %[temp14], 16 \n\t" - "sra %[temp9], %[temp9], 16 \n\t" - "sra %[temp13], %[temp13], 16 \n\t" - "sra %[temp15], %[temp15], 16 \n\t" - "subu %[temp9], %[temp14], %[temp9] \n\t" - "addu %[temp15], %[temp13], %[temp15] \n\t" - "addu %[temp14], %[temp0], %[temp2] \n\t" - "subu %[temp0], %[temp0], %[temp2] \n\t" - "mul %[temp2], %[temp1], %[kC2] \n\t" - "mul %[temp13], %[temp3], %[kC1] \n\t" - "mul %[temp1], %[temp1], %[kC1] \n\t" - "mul %[temp3], %[temp3], %[kC2] \n\t" - "sra %[temp2], %[temp2], 16 \n\t" - "sra %[temp13], %[temp13], 16 \n\t" - "sra %[temp1], %[temp1], 16 \n\t" - "sra %[temp3], %[temp3], 16 \n\t" - "subu %[temp13], %[temp2], %[temp13] \n\t" - "addu %[temp3], %[temp1], %[temp3] \n\t" - "addu %[temp2], %[temp4], %[temp6] \n\t" - "subu %[temp4], %[temp4], %[temp6] \n\t" - "mul %[temp6], %[temp5], %[kC2] \n\t" - "mul %[temp1], %[temp7], %[kC1] \n\t" - "mul %[temp5], %[temp5], %[kC1] \n\t" - "mul %[temp7], %[temp7], %[kC2] \n\t" - "sra %[temp6], %[temp6], 16 \n\t" - "sra %[temp1], %[temp1], 16 \n\t" - "sra %[temp5], %[temp5], 16 \n\t" - "sra %[temp7], %[temp7], 16 \n\t" - "subu %[temp1], %[temp6], %[temp1] \n\t" - "addu %[temp7], %[temp5], %[temp7] \n\t" - "addu %[temp5], %[temp16], %[temp11] \n\t" - "subu %[temp16], %[temp16], %[temp11] \n\t" - "addu %[temp11], %[temp8], %[temp17] \n\t" - "subu %[temp8], %[temp8], %[temp17] \n\t" - "sra %[temp5], %[temp5], 3 \n\t" - "sra %[temp16], %[temp16], 3 \n\t" - "sra %[temp11], %[temp11], 3 \n\t" - "sra %[temp8], %[temp8], 3 \n\t" - "addu %[temp17], %[temp10], %[temp15] \n\t" - "subu %[temp10], %[temp10], %[temp15] \n\t" - "addu %[temp15], %[temp12], %[temp9] \n\t" - "subu %[temp12], %[temp12], %[temp9] \n\t" - "sra %[temp17], %[temp17], 3 \n\t" - "sra %[temp10], %[temp10], 3 \n\t" - "sra %[temp15], %[temp15], 3 \n\t" - "sra %[temp12], %[temp12], 3 \n\t" - "addu %[temp9], %[temp14], %[temp3] \n\t" - "subu %[temp14], %[temp14], %[temp3] \n\t" - "addu %[temp3], %[temp0], %[temp13] \n\t" - "subu %[temp0], %[temp0], %[temp13] \n\t" - "sra %[temp9], %[temp9], 3 \n\t" - "sra %[temp14], %[temp14], 3 \n\t" - "sra %[temp3], %[temp3], 3 \n\t" - "sra %[temp0], %[temp0], 3 \n\t" - "addu %[temp13], %[temp2], %[temp7] \n\t" - "subu %[temp2], %[temp2], %[temp7] \n\t" - "addu %[temp7], %[temp4], %[temp1] \n\t" - "subu %[temp4], %[temp4], %[temp1] \n\t" - "sra %[temp13], %[temp13], 3 \n\t" - "sra %[temp2], %[temp2], 3 \n\t" - "sra %[temp7], %[temp7], 3 \n\t" - "sra %[temp4], %[temp4], 3 \n\t" - "addiu %[temp6], $zero, 255 \n\t" - "lbu %[temp1], 0+0*" XSTR(BPS) "(%[dst]) \n\t" - "addu %[temp1], %[temp1], %[temp5] \n\t" - "sra %[temp5], %[temp1], 8 \n\t" - "sra %[temp18], %[temp1], 31 \n\t" - "beqz %[temp5], 1f \n\t" - "xor %[temp1], %[temp1], %[temp1] \n\t" - "movz %[temp1], %[temp6], %[temp18] \n\t" - "1: \n\t" - "lbu %[temp18], 1+0*" XSTR(BPS) "(%[dst]) \n\t" - "sb %[temp1], 0+0*" XSTR(BPS) "(%[dst]) \n\t" - "addu %[temp18], %[temp18], %[temp11] \n\t" - "sra %[temp11], %[temp18], 8 \n\t" - "sra %[temp1], %[temp18], 31 \n\t" - "beqz %[temp11], 2f \n\t" - "xor %[temp18], %[temp18], %[temp18] \n\t" - "movz %[temp18], %[temp6], %[temp1] \n\t" - "2: \n\t" - "lbu %[temp1], 2+0*" XSTR(BPS) "(%[dst]) \n\t" - "sb %[temp18], 1+0*" XSTR(BPS) "(%[dst]) \n\t" - "addu %[temp1], %[temp1], %[temp8] \n\t" - "sra %[temp8], %[temp1], 8 \n\t" - "sra %[temp18], %[temp1], 31 \n\t" - "beqz %[temp8], 3f \n\t" - "xor %[temp1], %[temp1], %[temp1] \n\t" - "movz %[temp1], %[temp6], %[temp18] \n\t" - "3: \n\t" - "lbu %[temp18], 3+0*" XSTR(BPS) "(%[dst]) \n\t" - "sb %[temp1], 2+0*" XSTR(BPS) "(%[dst]) \n\t" - "addu %[temp18], %[temp18], %[temp16] \n\t" - "sra %[temp16], %[temp18], 8 \n\t" - "sra %[temp1], %[temp18], 31 \n\t" - "beqz %[temp16], 4f \n\t" - "xor %[temp18], %[temp18], %[temp18] \n\t" - "movz %[temp18], %[temp6], %[temp1] \n\t" - "4: \n\t" - "sb %[temp18], 3+0*" XSTR(BPS) "(%[dst]) \n\t" - "lbu %[temp5], 0+1*" XSTR(BPS) "(%[dst]) \n\t" - "lbu %[temp8], 1+1*" XSTR(BPS) "(%[dst]) \n\t" - "lbu %[temp11], 2+1*" XSTR(BPS) "(%[dst]) \n\t" - "lbu %[temp16], 3+1*" XSTR(BPS) "(%[dst]) \n\t" - "addu %[temp5], %[temp5], %[temp17] \n\t" - "addu %[temp8], %[temp8], %[temp15] \n\t" - "addu %[temp11], %[temp11], %[temp12] \n\t" - "addu %[temp16], %[temp16], %[temp10] \n\t" - "sra %[temp18], %[temp5], 8 \n\t" - "sra %[temp1], %[temp5], 31 \n\t" - "beqz %[temp18], 5f \n\t" - "xor %[temp5], %[temp5], %[temp5] \n\t" - "movz %[temp5], %[temp6], %[temp1] \n\t" - "5: \n\t" - "sra %[temp18], %[temp8], 8 \n\t" - "sra %[temp1], %[temp8], 31 \n\t" - "beqz %[temp18], 6f \n\t" - "xor %[temp8], %[temp8], %[temp8] \n\t" - "movz %[temp8], %[temp6], %[temp1] \n\t" - "6: \n\t" - "sra %[temp18], %[temp11], 8 \n\t" - "sra %[temp1], %[temp11], 31 \n\t" - "sra %[temp17], %[temp16], 8 \n\t" - "sra %[temp15], %[temp16], 31 \n\t" - "beqz %[temp18], 7f \n\t" - "xor %[temp11], %[temp11], %[temp11] \n\t" - "movz %[temp11], %[temp6], %[temp1] \n\t" - "7: \n\t" - "beqz %[temp17], 8f \n\t" - "xor %[temp16], %[temp16], %[temp16] \n\t" - "movz %[temp16], %[temp6], %[temp15] \n\t" - "8: \n\t" - "sb %[temp5], 0+1*" XSTR(BPS) "(%[dst]) \n\t" - "sb %[temp8], 1+1*" XSTR(BPS) "(%[dst]) \n\t" - "sb %[temp11], 2+1*" XSTR(BPS) "(%[dst]) \n\t" - "sb %[temp16], 3+1*" XSTR(BPS) "(%[dst]) \n\t" - "lbu %[temp5], 0+2*" XSTR(BPS) "(%[dst]) \n\t" - "lbu %[temp8], 1+2*" XSTR(BPS) "(%[dst]) \n\t" - "lbu %[temp11], 2+2*" XSTR(BPS) "(%[dst]) \n\t" - "lbu %[temp16], 3+2*" XSTR(BPS) "(%[dst]) \n\t" - "addu %[temp5], %[temp5], %[temp9] \n\t" - "addu %[temp8], %[temp8], %[temp3] \n\t" - "addu %[temp11], %[temp11], %[temp0] \n\t" - "addu %[temp16], %[temp16], %[temp14] \n\t" - "sra %[temp18], %[temp5], 8 \n\t" - "sra %[temp1], %[temp5], 31 \n\t" - "sra %[temp17], %[temp8], 8 \n\t" - "sra %[temp15], %[temp8], 31 \n\t" - "sra %[temp12], %[temp11], 8 \n\t" - "sra %[temp10], %[temp11], 31 \n\t" - "sra %[temp9], %[temp16], 8 \n\t" - "sra %[temp3], %[temp16], 31 \n\t" - "beqz %[temp18], 9f \n\t" - "xor %[temp5], %[temp5], %[temp5] \n\t" - "movz %[temp5], %[temp6], %[temp1] \n\t" - "9: \n\t" - "beqz %[temp17], 10f \n\t" - "xor %[temp8], %[temp8], %[temp8] \n\t" - "movz %[temp8], %[temp6], %[temp15] \n\t" - "10: \n\t" - "beqz %[temp12], 11f \n\t" - "xor %[temp11], %[temp11], %[temp11] \n\t" - "movz %[temp11], %[temp6], %[temp10] \n\t" - "11: \n\t" - "beqz %[temp9], 12f \n\t" - "xor %[temp16], %[temp16], %[temp16] \n\t" - "movz %[temp16], %[temp6], %[temp3] \n\t" - "12: \n\t" - "sb %[temp5], 0+2*" XSTR(BPS) "(%[dst]) \n\t" - "sb %[temp8], 1+2*" XSTR(BPS) "(%[dst]) \n\t" - "sb %[temp11], 2+2*" XSTR(BPS) "(%[dst]) \n\t" - "sb %[temp16], 3+2*" XSTR(BPS) "(%[dst]) \n\t" - "lbu %[temp5], 0+3*" XSTR(BPS) "(%[dst]) \n\t" - "lbu %[temp8], 1+3*" XSTR(BPS) "(%[dst]) \n\t" - "lbu %[temp11], 2+3*" XSTR(BPS) "(%[dst]) \n\t" - "lbu %[temp16], 3+3*" XSTR(BPS) "(%[dst]) \n\t" - "addu %[temp5], %[temp5], %[temp13] \n\t" - "addu %[temp8], %[temp8], %[temp7] \n\t" - "addu %[temp11], %[temp11], %[temp4] \n\t" - "addu %[temp16], %[temp16], %[temp2] \n\t" - "sra %[temp18], %[temp5], 8 \n\t" - "sra %[temp1], %[temp5], 31 \n\t" - "sra %[temp17], %[temp8], 8 \n\t" - "sra %[temp15], %[temp8], 31 \n\t" - "sra %[temp12], %[temp11], 8 \n\t" - "sra %[temp10], %[temp11], 31 \n\t" - "sra %[temp9], %[temp16], 8 \n\t" - "sra %[temp3], %[temp16], 31 \n\t" - "beqz %[temp18], 13f \n\t" - "xor %[temp5], %[temp5], %[temp5] \n\t" - "movz %[temp5], %[temp6], %[temp1] \n\t" - "13: \n\t" - "beqz %[temp17], 14f \n\t" - "xor %[temp8], %[temp8], %[temp8] \n\t" - "movz %[temp8], %[temp6], %[temp15] \n\t" - "14: \n\t" - "beqz %[temp12], 15f \n\t" - "xor %[temp11], %[temp11], %[temp11] \n\t" - "movz %[temp11], %[temp6], %[temp10] \n\t" - "15: \n\t" - "beqz %[temp9], 16f \n\t" - "xor %[temp16], %[temp16], %[temp16] \n\t" - "movz %[temp16], %[temp6], %[temp3] \n\t" - "16: \n\t" - "sb %[temp5], 0+3*" XSTR(BPS) "(%[dst]) \n\t" - "sb %[temp8], 1+3*" XSTR(BPS) "(%[dst]) \n\t" - "sb %[temp11], 2+3*" XSTR(BPS) "(%[dst]) \n\t" - "sb %[temp16], 3+3*" XSTR(BPS) "(%[dst]) \n\t" - - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8), - [temp9]"=&r"(temp9), [temp10]"=&r"(temp10), [temp11]"=&r"(temp11), - [temp12]"=&r"(temp12), [temp13]"=&r"(temp13), [temp14]"=&r"(temp14), - [temp15]"=&r"(temp15), [temp16]"=&r"(temp16), [temp17]"=&r"(temp17), - [temp18]"=&r"(temp18) - : [in]"r"(p_in), [kC1]"r"(kC1), [kC2]"r"(kC2), [dst]"r"(dst) - : "memory", "hi", "lo" - ); -} - -static void TransformTwo(const int16_t* in, uint8_t* dst, int do_two) { - TransformOne(in, dst); - if (do_two) { - TransformOne(in + 16, dst + 4); - } -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8DspInitMIPS32(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitMIPS32(void) { - VP8InitClipTables(); - - VP8Transform = TransformTwo; - - VP8VFilter16 = VFilter16; - VP8HFilter16 = HFilter16; - VP8VFilter8 = VFilter8; - VP8HFilter8 = HFilter8; - VP8VFilter16i = VFilter16i; - VP8HFilter16i = HFilter16i; - VP8VFilter8i = VFilter8i; - VP8HFilter8i = HFilter8i; - - VP8SimpleVFilter16 = SimpleVFilter16; - VP8SimpleHFilter16 = SimpleHFilter16; - VP8SimpleVFilter16i = SimpleVFilter16i; - VP8SimpleHFilter16i = SimpleHFilter16i; -} - -#else // !WEBP_USE_MIPS32 - -WEBP_DSP_INIT_STUB(VP8DspInitMIPS32) - -#endif // WEBP_USE_MIPS32 diff --git a/drivers/webp/dsp/dec_mips_dsp_r2.c b/drivers/webp/dsp/dec_mips_dsp_r2.c deleted file mode 100644 index db5c657228..0000000000 --- a/drivers/webp/dsp/dec_mips_dsp_r2.c +++ /dev/null @@ -1,994 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// MIPS version of dsp functions -// -// Author(s): Djordje Pesut (djordje.pesut@imgtec.com) -// Jovan Zelincevic (jovan.zelincevic@imgtec.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_MIPS_DSP_R2) - -#include "./mips_macro.h" - -static const int kC1 = 20091 + (1 << 16); -static const int kC2 = 35468; - -#define MUL(a, b) (((a) * (b)) >> 16) - -static void TransformDC(const int16_t* in, uint8_t* dst) { - int temp1, temp2, temp3, temp4, temp5, temp6, temp7, temp8, temp9, temp10; - - __asm__ volatile ( - LOAD_WITH_OFFSET_X4(temp1, temp2, temp3, temp4, dst, - 0, 0, 0, 0, - 0, 1, 2, 3, - BPS) - "lh %[temp5], 0(%[in]) \n\t" - "addiu %[temp5], %[temp5], 4 \n\t" - "ins %[temp5], %[temp5], 16, 16 \n\t" - "shra.ph %[temp5], %[temp5], 3 \n\t" - CONVERT_2_BYTES_TO_HALF(temp6, temp7, temp8, temp9, temp10, temp1, temp2, - temp3, temp1, temp2, temp3, temp4) - STORE_SAT_SUM_X2(temp6, temp7, temp8, temp9, temp10, temp1, temp2, temp3, - temp5, temp5, temp5, temp5, temp5, temp5, temp5, temp5, - dst, 0, 1, 2, 3, BPS) - - OUTPUT_EARLY_CLOBBER_REGS_10() - : [in]"r"(in), [dst]"r"(dst) - : "memory" - ); -} - -static void TransformAC3(const int16_t* in, uint8_t* dst) { - const int a = in[0] + 4; - int c4 = MUL(in[4], kC2); - const int d4 = MUL(in[4], kC1); - const int c1 = MUL(in[1], kC2); - const int d1 = MUL(in[1], kC1); - int temp1, temp2, temp3, temp4, temp5, temp6, temp7, temp8, temp9; - int temp10, temp11, temp12, temp13, temp14, temp15, temp16, temp17, temp18; - - __asm__ volatile ( - "ins %[c4], %[d4], 16, 16 \n\t" - "replv.ph %[temp1], %[a] \n\t" - "replv.ph %[temp4], %[d1] \n\t" - ADD_SUB_HALVES(temp2, temp3, temp1, c4) - "replv.ph %[temp5], %[c1] \n\t" - SHIFT_R_SUM_X2(temp1, temp6, temp7, temp8, temp2, temp9, temp10, temp4, - temp2, temp2, temp3, temp3, temp4, temp5, temp4, temp5) - LOAD_WITH_OFFSET_X4(temp3, temp5, temp11, temp12, dst, - 0, 0, 0, 0, - 0, 1, 2, 3, - BPS) - CONVERT_2_BYTES_TO_HALF(temp13, temp14, temp3, temp15, temp5, temp16, - temp11, temp17, temp3, temp5, temp11, temp12) - PACK_2_HALVES_TO_WORD(temp12, temp18, temp7, temp6, temp1, temp8, temp2, - temp4, temp7, temp6, temp10, temp9) - STORE_SAT_SUM_X2(temp13, temp14, temp3, temp15, temp5, temp16, temp11, - temp17, temp12, temp18, temp1, temp8, temp2, temp4, - temp7, temp6, dst, 0, 1, 2, 3, BPS) - - OUTPUT_EARLY_CLOBBER_REGS_18(), - [c4]"+&r"(c4) - : [dst]"r"(dst), [a]"r"(a), [d1]"r"(d1), [d4]"r"(d4), [c1]"r"(c1) - : "memory" - ); -} - -static void TransformOne(const int16_t* in, uint8_t* dst) { - int temp1, temp2, temp3, temp4, temp5, temp6, temp7, temp8, temp9; - int temp10, temp11, temp12, temp13, temp14, temp15, temp16, temp17, temp18; - - __asm__ volatile ( - "ulw %[temp1], 0(%[in]) \n\t" - "ulw %[temp2], 16(%[in]) \n\t" - LOAD_IN_X2(temp5, temp6, 24, 26) - ADD_SUB_HALVES(temp3, temp4, temp1, temp2) - LOAD_IN_X2(temp1, temp2, 8, 10) - MUL_SHIFT_SUM(temp7, temp8, temp9, temp10, temp11, temp12, temp13, temp14, - temp10, temp8, temp9, temp7, temp1, temp2, temp5, temp6, - temp13, temp11, temp14, temp12) - INSERT_HALF_X2(temp8, temp7, temp10, temp9) - "ulw %[temp17], 4(%[in]) \n\t" - "ulw %[temp18], 20(%[in]) \n\t" - ADD_SUB_HALVES(temp1, temp2, temp3, temp8) - ADD_SUB_HALVES(temp5, temp6, temp4, temp7) - ADD_SUB_HALVES(temp7, temp8, temp17, temp18) - LOAD_IN_X2(temp17, temp18, 12, 14) - LOAD_IN_X2(temp9, temp10, 28, 30) - MUL_SHIFT_SUM(temp11, temp12, temp13, temp14, temp15, temp16, temp4, temp17, - temp12, temp14, temp11, temp13, temp17, temp18, temp9, temp10, - temp15, temp4, temp16, temp17) - INSERT_HALF_X2(temp11, temp12, temp13, temp14) - ADD_SUB_HALVES(temp17, temp8, temp8, temp11) - ADD_SUB_HALVES(temp3, temp4, temp7, temp12) - - // horizontal - SRA_16(temp9, temp10, temp11, temp12, temp1, temp2, temp5, temp6) - INSERT_HALF_X2(temp1, temp6, temp5, temp2) - SRA_16(temp13, temp14, temp15, temp16, temp3, temp4, temp17, temp8) - "repl.ph %[temp2], 0x4 \n\t" - INSERT_HALF_X2(temp3, temp8, temp17, temp4) - "addq.ph %[temp1], %[temp1], %[temp2] \n\t" - "addq.ph %[temp6], %[temp6], %[temp2] \n\t" - ADD_SUB_HALVES(temp2, temp4, temp1, temp3) - ADD_SUB_HALVES(temp5, temp7, temp6, temp8) - MUL_SHIFT_SUM(temp1, temp3, temp6, temp8, temp9, temp13, temp17, temp18, - temp3, temp13, temp1, temp9, temp9, temp13, temp11, temp15, - temp6, temp17, temp8, temp18) - MUL_SHIFT_SUM(temp6, temp8, temp18, temp17, temp11, temp15, temp12, temp16, - temp8, temp15, temp6, temp11, temp12, temp16, temp10, temp14, - temp18, temp12, temp17, temp16) - INSERT_HALF_X2(temp1, temp3, temp9, temp13) - INSERT_HALF_X2(temp6, temp8, temp11, temp15) - SHIFT_R_SUM_X2(temp9, temp10, temp11, temp12, temp13, temp14, temp15, - temp16, temp2, temp4, temp5, temp7, temp3, temp1, temp8, - temp6) - PACK_2_HALVES_TO_WORD(temp1, temp2, temp3, temp4, temp9, temp12, temp13, - temp16, temp11, temp10, temp15, temp14) - LOAD_WITH_OFFSET_X4(temp10, temp11, temp14, temp15, dst, - 0, 0, 0, 0, - 0, 1, 2, 3, - BPS) - CONVERT_2_BYTES_TO_HALF(temp5, temp6, temp7, temp8, temp17, temp18, temp10, - temp11, temp10, temp11, temp14, temp15) - STORE_SAT_SUM_X2(temp5, temp6, temp7, temp8, temp17, temp18, temp10, temp11, - temp9, temp12, temp1, temp2, temp13, temp16, temp3, temp4, - dst, 0, 1, 2, 3, BPS) - - OUTPUT_EARLY_CLOBBER_REGS_18() - : [dst]"r"(dst), [in]"r"(in), [kC1]"r"(kC1), [kC2]"r"(kC2) - : "memory", "hi", "lo" - ); -} - -static void TransformTwo(const int16_t* in, uint8_t* dst, int do_two) { - TransformOne(in, dst); - if (do_two) { - TransformOne(in + 16, dst + 4); - } -} - -static WEBP_INLINE void FilterLoop26(uint8_t* p, - int hstride, int vstride, int size, - int thresh, int ithresh, int hev_thresh) { - const int thresh2 = 2 * thresh + 1; - int temp1, temp2, temp3, temp4, temp5, temp6, temp7, temp8, temp9; - int temp10, temp11, temp12, temp13, temp14, temp15; - - __asm__ volatile ( - ".set push \n\t" - ".set noreorder \n\t" - "1: \n\t" - "negu %[temp1], %[hstride] \n\t" - "addiu %[size], %[size], -1 \n\t" - "sll %[temp2], %[hstride], 1 \n\t" - "sll %[temp3], %[temp1], 1 \n\t" - "addu %[temp4], %[temp2], %[hstride] \n\t" - "addu %[temp5], %[temp3], %[temp1] \n\t" - "lbu %[temp7], 0(%[p]) \n\t" - "sll %[temp6], %[temp3], 1 \n\t" - "lbux %[temp8], %[temp5](%[p]) \n\t" - "lbux %[temp9], %[temp3](%[p]) \n\t" - "lbux %[temp10], %[temp1](%[p]) \n\t" - "lbux %[temp11], %[temp6](%[p]) \n\t" - "lbux %[temp12], %[hstride](%[p]) \n\t" - "lbux %[temp13], %[temp2](%[p]) \n\t" - "lbux %[temp14], %[temp4](%[p]) \n\t" - "subu %[temp1], %[temp10], %[temp7] \n\t" - "subu %[temp2], %[temp9], %[temp12] \n\t" - "absq_s.w %[temp3], %[temp1] \n\t" - "absq_s.w %[temp4], %[temp2] \n\t" - "negu %[temp1], %[temp1] \n\t" - "sll %[temp3], %[temp3], 2 \n\t" - "addu %[temp15], %[temp3], %[temp4] \n\t" - "subu %[temp3], %[temp15], %[thresh2] \n\t" - "sll %[temp6], %[temp1], 1 \n\t" - "bgtz %[temp3], 3f \n\t" - " subu %[temp4], %[temp11], %[temp8] \n\t" - "absq_s.w %[temp4], %[temp4] \n\t" - "shll_s.w %[temp2], %[temp2], 24 \n\t" - "subu %[temp4], %[temp4], %[ithresh] \n\t" - "bgtz %[temp4], 3f \n\t" - " subu %[temp3], %[temp8], %[temp9] \n\t" - "absq_s.w %[temp3], %[temp3] \n\t" - "subu %[temp3], %[temp3], %[ithresh] \n\t" - "bgtz %[temp3], 3f \n\t" - " subu %[temp5], %[temp9], %[temp10] \n\t" - "absq_s.w %[temp3], %[temp5] \n\t" - "absq_s.w %[temp5], %[temp5] \n\t" - "subu %[temp3], %[temp3], %[ithresh] \n\t" - "bgtz %[temp3], 3f \n\t" - " subu %[temp3], %[temp14], %[temp13] \n\t" - "absq_s.w %[temp3], %[temp3] \n\t" - "slt %[temp5], %[hev_thresh], %[temp5] \n\t" - "subu %[temp3], %[temp3], %[ithresh] \n\t" - "bgtz %[temp3], 3f \n\t" - " subu %[temp3], %[temp13], %[temp12] \n\t" - "absq_s.w %[temp3], %[temp3] \n\t" - "sra %[temp4], %[temp2], 24 \n\t" - "subu %[temp3], %[temp3], %[ithresh] \n\t" - "bgtz %[temp3], 3f \n\t" - " subu %[temp15], %[temp12], %[temp7] \n\t" - "absq_s.w %[temp3], %[temp15] \n\t" - "absq_s.w %[temp15], %[temp15] \n\t" - "subu %[temp3], %[temp3], %[ithresh] \n\t" - "bgtz %[temp3], 3f \n\t" - " slt %[temp15], %[hev_thresh], %[temp15] \n\t" - "addu %[temp3], %[temp6], %[temp1] \n\t" - "or %[temp2], %[temp5], %[temp15] \n\t" - "addu %[temp5], %[temp4], %[temp3] \n\t" - "beqz %[temp2], 4f \n\t" - " shra_r.w %[temp1], %[temp5], 3 \n\t" - "addiu %[temp2], %[temp5], 3 \n\t" - "sra %[temp2], %[temp2], 3 \n\t" - "shll_s.w %[temp1], %[temp1], 27 \n\t" - "shll_s.w %[temp2], %[temp2], 27 \n\t" - "subu %[temp3], %[p], %[hstride] \n\t" - "sra %[temp1], %[temp1], 27 \n\t" - "sra %[temp2], %[temp2], 27 \n\t" - "subu %[temp1], %[temp7], %[temp1] \n\t" - "addu %[temp2], %[temp10], %[temp2] \n\t" - "lbux %[temp2], %[temp2](%[VP8kclip1]) \n\t" - "lbux %[temp1], %[temp1](%[VP8kclip1]) \n\t" - "sb %[temp2], 0(%[temp3]) \n\t" - "j 3f \n\t" - " sb %[temp1], 0(%[p]) \n\t" - "4: \n\t" - "shll_s.w %[temp5], %[temp5], 24 \n\t" - "subu %[temp14], %[p], %[hstride] \n\t" - "subu %[temp11], %[temp14], %[hstride] \n\t" - "sra %[temp6], %[temp5], 24 \n\t" - "sll %[temp1], %[temp6], 3 \n\t" - "subu %[temp15], %[temp11], %[hstride] \n\t" - "addu %[temp2], %[temp6], %[temp1] \n\t" - "sll %[temp3], %[temp2], 1 \n\t" - "addu %[temp4], %[temp3], %[temp2] \n\t" - "addiu %[temp2], %[temp2], 63 \n\t" - "addiu %[temp3], %[temp3], 63 \n\t" - "addiu %[temp4], %[temp4], 63 \n\t" - "sra %[temp2], %[temp2], 7 \n\t" - "sra %[temp3], %[temp3], 7 \n\t" - "sra %[temp4], %[temp4], 7 \n\t" - "addu %[temp1], %[temp8], %[temp2] \n\t" - "addu %[temp5], %[temp9], %[temp3] \n\t" - "addu %[temp6], %[temp10], %[temp4] \n\t" - "subu %[temp8], %[temp7], %[temp4] \n\t" - "subu %[temp7], %[temp12], %[temp3] \n\t" - "addu %[temp10], %[p], %[hstride] \n\t" - "subu %[temp9], %[temp13], %[temp2] \n\t" - "addu %[temp12], %[temp10], %[hstride] \n\t" - "lbux %[temp2], %[temp1](%[VP8kclip1]) \n\t" - "lbux %[temp3], %[temp5](%[VP8kclip1]) \n\t" - "lbux %[temp4], %[temp6](%[VP8kclip1]) \n\t" - "lbux %[temp5], %[temp8](%[VP8kclip1]) \n\t" - "lbux %[temp6], %[temp7](%[VP8kclip1]) \n\t" - "lbux %[temp8], %[temp9](%[VP8kclip1]) \n\t" - "sb %[temp2], 0(%[temp15]) \n\t" - "sb %[temp3], 0(%[temp11]) \n\t" - "sb %[temp4], 0(%[temp14]) \n\t" - "sb %[temp5], 0(%[p]) \n\t" - "sb %[temp6], 0(%[temp10]) \n\t" - "sb %[temp8], 0(%[temp12]) \n\t" - "3: \n\t" - "bgtz %[size], 1b \n\t" - " addu %[p], %[p], %[vstride] \n\t" - ".set pop \n\t" - : [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),[temp3]"=&r"(temp3), - [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [temp6]"=&r"(temp6), - [temp7]"=&r"(temp7),[temp8]"=&r"(temp8),[temp9]"=&r"(temp9), - [temp10]"=&r"(temp10),[temp11]"=&r"(temp11),[temp12]"=&r"(temp12), - [temp13]"=&r"(temp13),[temp14]"=&r"(temp14),[temp15]"=&r"(temp15), - [size]"+&r"(size), [p]"+&r"(p) - : [hstride]"r"(hstride), [thresh2]"r"(thresh2), - [ithresh]"r"(ithresh),[vstride]"r"(vstride), [hev_thresh]"r"(hev_thresh), - [VP8kclip1]"r"(VP8kclip1) - : "memory" - ); -} - -static WEBP_INLINE void FilterLoop24(uint8_t* p, - int hstride, int vstride, int size, - int thresh, int ithresh, int hev_thresh) { - int p0, q0, p1, q1, p2, q2, p3, q3; - int step1, step2, temp1, temp2, temp3, temp4; - uint8_t* pTemp0; - uint8_t* pTemp1; - const int thresh2 = 2 * thresh + 1; - - __asm__ volatile ( - ".set push \n\t" - ".set noreorder \n\t" - "bltz %[size], 3f \n\t" - " nop \n\t" - "2: \n\t" - "negu %[step1], %[hstride] \n\t" - "lbu %[q0], 0(%[p]) \n\t" - "lbux %[p0], %[step1](%[p]) \n\t" - "subu %[step1], %[step1], %[hstride] \n\t" - "lbux %[q1], %[hstride](%[p]) \n\t" - "subu %[temp1], %[p0], %[q0] \n\t" - "lbux %[p1], %[step1](%[p]) \n\t" - "addu %[step2], %[hstride], %[hstride] \n\t" - "absq_s.w %[temp2], %[temp1] \n\t" - "subu %[temp3], %[p1], %[q1] \n\t" - "absq_s.w %[temp4], %[temp3] \n\t" - "sll %[temp2], %[temp2], 2 \n\t" - "addu %[temp2], %[temp2], %[temp4] \n\t" - "subu %[temp4], %[temp2], %[thresh2] \n\t" - "subu %[step1], %[step1], %[hstride] \n\t" - "bgtz %[temp4], 0f \n\t" - " lbux %[p2], %[step1](%[p]) \n\t" - "subu %[step1], %[step1], %[hstride] \n\t" - "lbux %[q2], %[step2](%[p]) \n\t" - "lbux %[p3], %[step1](%[p]) \n\t" - "subu %[temp4], %[p2], %[p1] \n\t" - "addu %[step2], %[step2], %[hstride] \n\t" - "subu %[temp2], %[p3], %[p2] \n\t" - "absq_s.w %[temp4], %[temp4] \n\t" - "absq_s.w %[temp2], %[temp2] \n\t" - "lbux %[q3], %[step2](%[p]) \n\t" - "subu %[temp4], %[temp4], %[ithresh] \n\t" - "negu %[temp1], %[temp1] \n\t" - "bgtz %[temp4], 0f \n\t" - " subu %[temp2], %[temp2], %[ithresh] \n\t" - "subu %[p3], %[p1], %[p0] \n\t" - "bgtz %[temp2], 0f \n\t" - " absq_s.w %[p3], %[p3] \n\t" - "subu %[temp4], %[q3], %[q2] \n\t" - "subu %[pTemp0], %[p], %[hstride] \n\t" - "absq_s.w %[temp4], %[temp4] \n\t" - "subu %[temp2], %[p3], %[ithresh] \n\t" - "sll %[step1], %[temp1], 1 \n\t" - "bgtz %[temp2], 0f \n\t" - " subu %[temp4], %[temp4], %[ithresh] \n\t" - "subu %[temp2], %[q2], %[q1] \n\t" - "bgtz %[temp4], 0f \n\t" - " absq_s.w %[temp2], %[temp2] \n\t" - "subu %[q3], %[q1], %[q0] \n\t" - "absq_s.w %[q3], %[q3] \n\t" - "subu %[temp2], %[temp2], %[ithresh] \n\t" - "addu %[temp1], %[temp1], %[step1] \n\t" - "bgtz %[temp2], 0f \n\t" - " subu %[temp4], %[q3], %[ithresh] \n\t" - "slt %[p3], %[hev_thresh], %[p3] \n\t" - "bgtz %[temp4], 0f \n\t" - " slt %[q3], %[hev_thresh], %[q3] \n\t" - "or %[q3], %[q3], %[p3] \n\t" - "bgtz %[q3], 1f \n\t" - " shra_r.w %[temp2], %[temp1], 3 \n\t" - "addiu %[temp1], %[temp1], 3 \n\t" - "sra %[temp1], %[temp1], 3 \n\t" - "shll_s.w %[temp2], %[temp2], 27 \n\t" - "shll_s.w %[temp1], %[temp1], 27 \n\t" - "addu %[pTemp1], %[p], %[hstride] \n\t" - "sra %[temp2], %[temp2], 27 \n\t" - "sra %[temp1], %[temp1], 27 \n\t" - "addiu %[step1], %[temp2], 1 \n\t" - "sra %[step1], %[step1], 1 \n\t" - "addu %[p0], %[p0], %[temp1] \n\t" - "addu %[p1], %[p1], %[step1] \n\t" - "subu %[q0], %[q0], %[temp2] \n\t" - "subu %[q1], %[q1], %[step1] \n\t" - "lbux %[temp2], %[p0](%[VP8kclip1]) \n\t" - "lbux %[temp3], %[q0](%[VP8kclip1]) \n\t" - "lbux %[temp4], %[q1](%[VP8kclip1]) \n\t" - "sb %[temp2], 0(%[pTemp0]) \n\t" - "lbux %[temp1], %[p1](%[VP8kclip1]) \n\t" - "subu %[pTemp0], %[pTemp0], %[hstride] \n\t" - "sb %[temp3], 0(%[p]) \n\t" - "sb %[temp4], 0(%[pTemp1]) \n\t" - "j 0f \n\t" - " sb %[temp1], 0(%[pTemp0]) \n\t" - "1: \n\t" - "shll_s.w %[temp3], %[temp3], 24 \n\t" - "sra %[temp3], %[temp3], 24 \n\t" - "addu %[temp1], %[temp1], %[temp3] \n\t" - "shra_r.w %[temp2], %[temp1], 3 \n\t" - "addiu %[temp1], %[temp1], 3 \n\t" - "shll_s.w %[temp2], %[temp2], 27 \n\t" - "sra %[temp1], %[temp1], 3 \n\t" - "shll_s.w %[temp1], %[temp1], 27 \n\t" - "sra %[temp2], %[temp2], 27 \n\t" - "sra %[temp1], %[temp1], 27 \n\t" - "addu %[p0], %[p0], %[temp1] \n\t" - "subu %[q0], %[q0], %[temp2] \n\t" - "lbux %[temp1], %[p0](%[VP8kclip1]) \n\t" - "lbux %[temp2], %[q0](%[VP8kclip1]) \n\t" - "sb %[temp2], 0(%[p]) \n\t" - "sb %[temp1], 0(%[pTemp0]) \n\t" - "0: \n\t" - "subu %[size], %[size], 1 \n\t" - "bgtz %[size], 2b \n\t" - " addu %[p], %[p], %[vstride] \n\t" - "3: \n\t" - ".set pop \n\t" - : [p0]"=&r"(p0), [q0]"=&r"(q0), [p1]"=&r"(p1), [q1]"=&r"(q1), - [p2]"=&r"(p2), [q2]"=&r"(q2), [p3]"=&r"(p3), [q3]"=&r"(q3), - [step2]"=&r"(step2), [step1]"=&r"(step1), [temp1]"=&r"(temp1), - [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), - [pTemp0]"=&r"(pTemp0), [pTemp1]"=&r"(pTemp1), [p]"+&r"(p), - [size]"+&r"(size) - : [vstride]"r"(vstride), [ithresh]"r"(ithresh), - [hev_thresh]"r"(hev_thresh), [hstride]"r"(hstride), - [VP8kclip1]"r"(VP8kclip1), [thresh2]"r"(thresh2) - : "memory" - ); -} - -// on macroblock edges -static void VFilter16(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop26(p, stride, 1, 16, thresh, ithresh, hev_thresh); -} - -static void HFilter16(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop26(p, 1, stride, 16, thresh, ithresh, hev_thresh); -} - -// 8-pixels wide variant, for chroma filtering -static void VFilter8(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop26(u, stride, 1, 8, thresh, ithresh, hev_thresh); - FilterLoop26(v, stride, 1, 8, thresh, ithresh, hev_thresh); -} - -static void HFilter8(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop26(u, 1, stride, 8, thresh, ithresh, hev_thresh); - FilterLoop26(v, 1, stride, 8, thresh, ithresh, hev_thresh); -} - -// on three inner edges -static void VFilter16i(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - int k; - for (k = 3; k > 0; --k) { - p += 4 * stride; - FilterLoop24(p, stride, 1, 16, thresh, ithresh, hev_thresh); - } -} - -static void HFilter16i(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - int k; - for (k = 3; k > 0; --k) { - p += 4; - FilterLoop24(p, 1, stride, 16, thresh, ithresh, hev_thresh); - } -} - -static void VFilter8i(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop24(u + 4 * stride, stride, 1, 8, thresh, ithresh, hev_thresh); - FilterLoop24(v + 4 * stride, stride, 1, 8, thresh, ithresh, hev_thresh); -} - -static void HFilter8i(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - FilterLoop24(u + 4, 1, stride, 8, thresh, ithresh, hev_thresh); - FilterLoop24(v + 4, 1, stride, 8, thresh, ithresh, hev_thresh); -} - -#undef MUL - -//------------------------------------------------------------------------------ -// Simple In-loop filtering (Paragraph 15.2) - -static void SimpleVFilter16(uint8_t* p, int stride, int thresh) { - int i; - const int thresh2 = 2 * thresh + 1; - int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7, temp8; - uint8_t* p1 = p - stride; - __asm__ volatile ( - ".set push \n\t" - ".set noreorder \n\t" - "li %[i], 16 \n\t" - "0: \n\t" - "negu %[temp4], %[stride] \n\t" - "sll %[temp5], %[temp4], 1 \n\t" - "lbu %[temp2], 0(%[p]) \n\t" - "lbux %[temp3], %[stride](%[p]) \n\t" - "lbux %[temp1], %[temp4](%[p]) \n\t" - "lbux %[temp0], %[temp5](%[p]) \n\t" - "subu %[temp7], %[temp1], %[temp2] \n\t" - "subu %[temp6], %[temp0], %[temp3] \n\t" - "absq_s.w %[temp4], %[temp7] \n\t" - "absq_s.w %[temp5], %[temp6] \n\t" - "sll %[temp4], %[temp4], 2 \n\t" - "subu %[temp5], %[temp5], %[thresh2] \n\t" - "addu %[temp5], %[temp4], %[temp5] \n\t" - "negu %[temp8], %[temp7] \n\t" - "bgtz %[temp5], 1f \n\t" - " addiu %[i], %[i], -1 \n\t" - "sll %[temp4], %[temp8], 1 \n\t" - "shll_s.w %[temp5], %[temp6], 24 \n\t" - "addu %[temp3], %[temp4], %[temp8] \n\t" - "sra %[temp5], %[temp5], 24 \n\t" - "addu %[temp3], %[temp3], %[temp5] \n\t" - "addiu %[temp7], %[temp3], 3 \n\t" - "sra %[temp7], %[temp7], 3 \n\t" - "shra_r.w %[temp8], %[temp3], 3 \n\t" - "shll_s.w %[temp0], %[temp7], 27 \n\t" - "shll_s.w %[temp4], %[temp8], 27 \n\t" - "sra %[temp0], %[temp0], 27 \n\t" - "sra %[temp4], %[temp4], 27 \n\t" - "addu %[temp7], %[temp1], %[temp0] \n\t" - "subu %[temp2], %[temp2], %[temp4] \n\t" - "lbux %[temp3], %[temp7](%[VP8kclip1]) \n\t" - "lbux %[temp4], %[temp2](%[VP8kclip1]) \n\t" - "sb %[temp3], 0(%[p1]) \n\t" - "sb %[temp4], 0(%[p]) \n\t" - "1: \n\t" - "addiu %[p1], %[p1], 1 \n\t" - "bgtz %[i], 0b \n\t" - " addiu %[p], %[p], 1 \n\t" - " .set pop \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8), - [p]"+&r"(p), [i]"=&r"(i), [p1]"+&r"(p1) - : [stride]"r"(stride), [VP8kclip1]"r"(VP8kclip1), [thresh2]"r"(thresh2) - : "memory" - ); -} - -// TEMP0 = SRC[A + A1 * BPS] -// TEMP1 = SRC[B + B1 * BPS] -// TEMP2 = SRC[C + C1 * BPS] -// TEMP3 = SRC[D + D1 * BPS] -#define LOAD_4_BYTES(TEMP0, TEMP1, TEMP2, TEMP3, \ - A, A1, B, B1, C, C1, D, D1, SRC) \ - "lbu %[" #TEMP0 "], " #A "+" #A1 "*" XSTR(BPS) "(%[" #SRC "]) \n\t" \ - "lbu %[" #TEMP1 "], " #B "+" #B1 "*" XSTR(BPS) "(%[" #SRC "]) \n\t" \ - "lbu %[" #TEMP2 "], " #C "+" #C1 "*" XSTR(BPS) "(%[" #SRC "]) \n\t" \ - "lbu %[" #TEMP3 "], " #D "+" #D1 "*" XSTR(BPS) "(%[" #SRC "]) \n\t" \ - -static void SimpleHFilter16(uint8_t* p, int stride, int thresh) { - int i; - const int thresh2 = 2 * thresh + 1; - int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7, temp8; - __asm__ volatile ( - ".set push \n\t" - ".set noreorder \n\t" - "li %[i], 16 \n\t" - "0: \n\t" - LOAD_4_BYTES(temp0, temp1, temp2, temp3, -2, 0, -1, 0, 0, 0, 1, 0, p) - "subu %[temp7], %[temp1], %[temp2] \n\t" - "subu %[temp6], %[temp0], %[temp3] \n\t" - "absq_s.w %[temp4], %[temp7] \n\t" - "absq_s.w %[temp5], %[temp6] \n\t" - "sll %[temp4], %[temp4], 2 \n\t" - "addu %[temp5], %[temp4], %[temp5] \n\t" - "subu %[temp5], %[temp5], %[thresh2] \n\t" - "negu %[temp8], %[temp7] \n\t" - "bgtz %[temp5], 1f \n\t" - " addiu %[i], %[i], -1 \n\t" - "sll %[temp4], %[temp8], 1 \n\t" - "shll_s.w %[temp5], %[temp6], 24 \n\t" - "addu %[temp3], %[temp4], %[temp8] \n\t" - "sra %[temp5], %[temp5], 24 \n\t" - "addu %[temp3], %[temp3], %[temp5] \n\t" - "addiu %[temp7], %[temp3], 3 \n\t" - "sra %[temp7], %[temp7], 3 \n\t" - "shra_r.w %[temp8], %[temp3], 3 \n\t" - "shll_s.w %[temp0], %[temp7], 27 \n\t" - "shll_s.w %[temp4], %[temp8], 27 \n\t" - "sra %[temp0], %[temp0], 27 \n\t" - "sra %[temp4], %[temp4], 27 \n\t" - "addu %[temp7], %[temp1], %[temp0] \n\t" - "subu %[temp2], %[temp2], %[temp4] \n\t" - "lbux %[temp3], %[temp7](%[VP8kclip1]) \n\t" - "lbux %[temp4], %[temp2](%[VP8kclip1]) \n\t" - "sb %[temp3], -1(%[p]) \n\t" - "sb %[temp4], 0(%[p]) \n\t" - "1: \n\t" - "bgtz %[i], 0b \n\t" - " addu %[p], %[p], %[stride] \n\t" - ".set pop \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8), - [p]"+&r"(p), [i]"=&r"(i) - : [stride]"r"(stride), [VP8kclip1]"r"(VP8kclip1), [thresh2]"r"(thresh2) - : "memory" - ); -} - -static void SimpleVFilter16i(uint8_t* p, int stride, int thresh) { - int k; - for (k = 3; k > 0; --k) { - p += 4 * stride; - SimpleVFilter16(p, stride, thresh); - } -} - -static void SimpleHFilter16i(uint8_t* p, int stride, int thresh) { - int k; - for (k = 3; k > 0; --k) { - p += 4; - SimpleHFilter16(p, stride, thresh); - } -} - -// DST[A * BPS] = TEMP0 -// DST[B + C * BPS] = TEMP1 -#define STORE_8_BYTES(TEMP0, TEMP1, A, B, C, DST) \ - "usw %[" #TEMP0 "], " #A "*" XSTR(BPS) "(%[" #DST "]) \n\t" \ - "usw %[" #TEMP1 "], " #B "+" #C "*" XSTR(BPS) "(%[" #DST "]) \n\t" - -static void VE4(uint8_t* dst) { // vertical - const uint8_t* top = dst - BPS; - int temp0, temp1, temp2, temp3, temp4, temp5, temp6; - __asm__ volatile ( - "ulw %[temp0], -1(%[top]) \n\t" - "ulh %[temp1], 3(%[top]) \n\t" - "preceu.ph.qbr %[temp2], %[temp0] \n\t" - "preceu.ph.qbl %[temp3], %[temp0] \n\t" - "preceu.ph.qbr %[temp4], %[temp1] \n\t" - "packrl.ph %[temp5], %[temp3], %[temp2] \n\t" - "packrl.ph %[temp6], %[temp4], %[temp3] \n\t" - "shll.ph %[temp5], %[temp5], 1 \n\t" - "shll.ph %[temp6], %[temp6], 1 \n\t" - "addq.ph %[temp2], %[temp5], %[temp2] \n\t" - "addq.ph %[temp6], %[temp6], %[temp4] \n\t" - "addq.ph %[temp2], %[temp2], %[temp3] \n\t" - "addq.ph %[temp6], %[temp6], %[temp3] \n\t" - "shra_r.ph %[temp2], %[temp2], 2 \n\t" - "shra_r.ph %[temp6], %[temp6], 2 \n\t" - "precr.qb.ph %[temp4], %[temp6], %[temp2] \n\t" - STORE_8_BYTES(temp4, temp4, 0, 0, 1, dst) - STORE_8_BYTES(temp4, temp4, 2, 0, 3, dst) - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6) - : [top]"r"(top), [dst]"r"(dst) - : "memory" - ); -} - -static void DC4(uint8_t* dst) { // DC - int temp0, temp1, temp2, temp3, temp4; - __asm__ volatile ( - "ulw %[temp0], -1*" XSTR(BPS) "(%[dst]) \n\t" - LOAD_4_BYTES(temp1, temp2, temp3, temp4, -1, 0, -1, 1, -1, 2, -1, 3, dst) - "ins %[temp1], %[temp2], 8, 8 \n\t" - "ins %[temp1], %[temp3], 16, 8 \n\t" - "ins %[temp1], %[temp4], 24, 8 \n\t" - "raddu.w.qb %[temp0], %[temp0] \n\t" - "raddu.w.qb %[temp1], %[temp1] \n\t" - "addu %[temp0], %[temp0], %[temp1] \n\t" - "shra_r.w %[temp0], %[temp0], 3 \n\t" - "replv.qb %[temp0], %[temp0] \n\t" - STORE_8_BYTES(temp0, temp0, 0, 0, 1, dst) - STORE_8_BYTES(temp0, temp0, 2, 0, 3, dst) - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4) - : [dst]"r"(dst) - : "memory" - ); -} - -static void RD4(uint8_t* dst) { // Down-right - int temp0, temp1, temp2, temp3, temp4; - int temp5, temp6, temp7, temp8; - __asm__ volatile ( - LOAD_4_BYTES(temp0, temp1, temp2, temp3, -1, 0, -1, 1, -1, 2, -1, 3, dst) - "ulw %[temp7], -1-" XSTR(BPS) "(%[dst]) \n\t" - "ins %[temp1], %[temp0], 16, 16 \n\t" - "preceu.ph.qbr %[temp5], %[temp7] \n\t" - "ins %[temp2], %[temp1], 16, 16 \n\t" - "preceu.ph.qbl %[temp4], %[temp7] \n\t" - "ins %[temp3], %[temp2], 16, 16 \n\t" - "shll.ph %[temp2], %[temp2], 1 \n\t" - "addq.ph %[temp3], %[temp3], %[temp1] \n\t" - "packrl.ph %[temp6], %[temp5], %[temp1] \n\t" - "addq.ph %[temp3], %[temp3], %[temp2] \n\t" - "addq.ph %[temp1], %[temp1], %[temp5] \n\t" - "shll.ph %[temp6], %[temp6], 1 \n\t" - "addq.ph %[temp1], %[temp1], %[temp6] \n\t" - "packrl.ph %[temp0], %[temp4], %[temp5] \n\t" - "addq.ph %[temp8], %[temp5], %[temp4] \n\t" - "shra_r.ph %[temp3], %[temp3], 2 \n\t" - "shll.ph %[temp0], %[temp0], 1 \n\t" - "shra_r.ph %[temp1], %[temp1], 2 \n\t" - "addq.ph %[temp8], %[temp0], %[temp8] \n\t" - "lbu %[temp5], 3-" XSTR(BPS) "(%[dst]) \n\t" - "precrq.ph.w %[temp7], %[temp7], %[temp7] \n\t" - "shra_r.ph %[temp8], %[temp8], 2 \n\t" - "ins %[temp7], %[temp5], 0, 8 \n\t" - "precr.qb.ph %[temp2], %[temp1], %[temp3] \n\t" - "raddu.w.qb %[temp4], %[temp7] \n\t" - "precr.qb.ph %[temp6], %[temp8], %[temp1] \n\t" - "shra_r.w %[temp4], %[temp4], 2 \n\t" - STORE_8_BYTES(temp2, temp6, 3, 0, 1, dst) - "prepend %[temp2], %[temp8], 8 \n\t" - "prepend %[temp6], %[temp4], 8 \n\t" - STORE_8_BYTES(temp2, temp6, 2, 0, 0, dst) - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8) - : [dst]"r"(dst) - : "memory" - ); -} - -// TEMP0 = SRC[A * BPS] -// TEMP1 = SRC[B + C * BPS] -#define LOAD_8_BYTES(TEMP0, TEMP1, A, B, C, SRC) \ - "ulw %[" #TEMP0 "], " #A "*" XSTR(BPS) "(%[" #SRC "]) \n\t" \ - "ulw %[" #TEMP1 "], " #B "+" #C "*" XSTR(BPS) "(%[" #SRC "]) \n\t" - -static void LD4(uint8_t* dst) { // Down-Left - int temp0, temp1, temp2, temp3, temp4; - int temp5, temp6, temp7, temp8, temp9; - __asm__ volatile ( - LOAD_8_BYTES(temp0, temp1, -1, 4, -1, dst) - "preceu.ph.qbl %[temp2], %[temp0] \n\t" - "preceu.ph.qbr %[temp3], %[temp0] \n\t" - "preceu.ph.qbr %[temp4], %[temp1] \n\t" - "preceu.ph.qbl %[temp5], %[temp1] \n\t" - "packrl.ph %[temp6], %[temp2], %[temp3] \n\t" - "packrl.ph %[temp7], %[temp4], %[temp2] \n\t" - "packrl.ph %[temp8], %[temp5], %[temp4] \n\t" - "shll.ph %[temp6], %[temp6], 1 \n\t" - "addq.ph %[temp9], %[temp2], %[temp6] \n\t" - "shll.ph %[temp7], %[temp7], 1 \n\t" - "addq.ph %[temp9], %[temp9], %[temp3] \n\t" - "shll.ph %[temp8], %[temp8], 1 \n\t" - "shra_r.ph %[temp9], %[temp9], 2 \n\t" - "addq.ph %[temp3], %[temp4], %[temp7] \n\t" - "addq.ph %[temp0], %[temp5], %[temp8] \n\t" - "addq.ph %[temp3], %[temp3], %[temp2] \n\t" - "addq.ph %[temp0], %[temp0], %[temp4] \n\t" - "shra_r.ph %[temp3], %[temp3], 2 \n\t" - "shra_r.ph %[temp0], %[temp0], 2 \n\t" - "srl %[temp1], %[temp1], 24 \n\t" - "sll %[temp1], %[temp1], 1 \n\t" - "raddu.w.qb %[temp5], %[temp5] \n\t" - "precr.qb.ph %[temp9], %[temp3], %[temp9] \n\t" - "precr.qb.ph %[temp3], %[temp0], %[temp3] \n\t" - "addu %[temp1], %[temp1], %[temp5] \n\t" - "shra_r.w %[temp1], %[temp1], 2 \n\t" - STORE_8_BYTES(temp9, temp3, 0, 0, 2, dst) - "prepend %[temp9], %[temp0], 8 \n\t" - "prepend %[temp3], %[temp1], 8 \n\t" - STORE_8_BYTES(temp9, temp3, 1, 0, 3, dst) - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8), - [temp9]"=&r"(temp9) - : [dst]"r"(dst) - : "memory" - ); -} - -//------------------------------------------------------------------------------ -// Chroma - -static void DC8uv(uint8_t* dst) { // DC - int temp0, temp1, temp2, temp3, temp4; - int temp5, temp6, temp7, temp8, temp9; - __asm__ volatile ( - LOAD_8_BYTES(temp0, temp1, -1, 4, -1, dst) - LOAD_4_BYTES(temp2, temp3, temp4, temp5, -1, 0, -1, 1, -1, 2, -1, 3, dst) - LOAD_4_BYTES(temp6, temp7, temp8, temp9, -1, 4, -1, 5, -1, 6, -1, 7, dst) - "raddu.w.qb %[temp0], %[temp0] \n\t" - "raddu.w.qb %[temp1], %[temp1] \n\t" - "addu %[temp2], %[temp2], %[temp3] \n\t" - "addu %[temp4], %[temp4], %[temp5] \n\t" - "addu %[temp6], %[temp6], %[temp7] \n\t" - "addu %[temp8], %[temp8], %[temp9] \n\t" - "addu %[temp0], %[temp0], %[temp1] \n\t" - "addu %[temp2], %[temp2], %[temp4] \n\t" - "addu %[temp6], %[temp6], %[temp8] \n\t" - "addu %[temp0], %[temp0], %[temp2] \n\t" - "addu %[temp0], %[temp0], %[temp6] \n\t" - "shra_r.w %[temp0], %[temp0], 4 \n\t" - "replv.qb %[temp0], %[temp0] \n\t" - STORE_8_BYTES(temp0, temp0, 0, 4, 0, dst) - STORE_8_BYTES(temp0, temp0, 1, 4, 1, dst) - STORE_8_BYTES(temp0, temp0, 2, 4, 2, dst) - STORE_8_BYTES(temp0, temp0, 3, 4, 3, dst) - STORE_8_BYTES(temp0, temp0, 4, 4, 4, dst) - STORE_8_BYTES(temp0, temp0, 5, 4, 5, dst) - STORE_8_BYTES(temp0, temp0, 6, 4, 6, dst) - STORE_8_BYTES(temp0, temp0, 7, 4, 7, dst) - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8), - [temp9]"=&r"(temp9) - : [dst]"r"(dst) - : "memory" - ); -} - -static void DC8uvNoLeft(uint8_t* dst) { // DC with no left samples - int temp0, temp1; - __asm__ volatile ( - LOAD_8_BYTES(temp0, temp1, -1, 4, -1, dst) - "raddu.w.qb %[temp0], %[temp0] \n\t" - "raddu.w.qb %[temp1], %[temp1] \n\t" - "addu %[temp0], %[temp0], %[temp1] \n\t" - "shra_r.w %[temp0], %[temp0], 3 \n\t" - "replv.qb %[temp0], %[temp0] \n\t" - STORE_8_BYTES(temp0, temp0, 0, 4, 0, dst) - STORE_8_BYTES(temp0, temp0, 1, 4, 1, dst) - STORE_8_BYTES(temp0, temp0, 2, 4, 2, dst) - STORE_8_BYTES(temp0, temp0, 3, 4, 3, dst) - STORE_8_BYTES(temp0, temp0, 4, 4, 4, dst) - STORE_8_BYTES(temp0, temp0, 5, 4, 5, dst) - STORE_8_BYTES(temp0, temp0, 6, 4, 6, dst) - STORE_8_BYTES(temp0, temp0, 7, 4, 7, dst) - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1) - : [dst]"r"(dst) - : "memory" - ); -} - -static void DC8uvNoTop(uint8_t* dst) { // DC with no top samples - int temp0, temp1, temp2, temp3, temp4; - int temp5, temp6, temp7, temp8; - __asm__ volatile ( - LOAD_4_BYTES(temp2, temp3, temp4, temp5, -1, 0, -1, 1, -1, 2, -1, 3, dst) - LOAD_4_BYTES(temp6, temp7, temp8, temp1, -1, 4, -1, 5, -1, 6, -1, 7, dst) - "addu %[temp2], %[temp2], %[temp3] \n\t" - "addu %[temp4], %[temp4], %[temp5] \n\t" - "addu %[temp6], %[temp6], %[temp7] \n\t" - "addu %[temp8], %[temp8], %[temp1] \n\t" - "addu %[temp2], %[temp2], %[temp4] \n\t" - "addu %[temp6], %[temp6], %[temp8] \n\t" - "addu %[temp0], %[temp6], %[temp2] \n\t" - "shra_r.w %[temp0], %[temp0], 3 \n\t" - "replv.qb %[temp0], %[temp0] \n\t" - STORE_8_BYTES(temp0, temp0, 0, 4, 0, dst) - STORE_8_BYTES(temp0, temp0, 1, 4, 1, dst) - STORE_8_BYTES(temp0, temp0, 2, 4, 2, dst) - STORE_8_BYTES(temp0, temp0, 3, 4, 3, dst) - STORE_8_BYTES(temp0, temp0, 4, 4, 4, dst) - STORE_8_BYTES(temp0, temp0, 5, 4, 5, dst) - STORE_8_BYTES(temp0, temp0, 6, 4, 6, dst) - STORE_8_BYTES(temp0, temp0, 7, 4, 7, dst) - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8) - : [dst]"r"(dst) - : "memory" - ); -} - -#undef LOAD_8_BYTES -#undef STORE_8_BYTES -#undef LOAD_4_BYTES - -#define CLIPPING(SIZE) \ - "preceu.ph.qbl %[temp2], %[temp0] \n\t" \ - "preceu.ph.qbr %[temp0], %[temp0] \n\t" \ -".if " #SIZE " == 8 \n\t" \ - "preceu.ph.qbl %[temp3], %[temp1] \n\t" \ - "preceu.ph.qbr %[temp1], %[temp1] \n\t" \ -".endif \n\t" \ - "addu.ph %[temp2], %[temp2], %[dst_1] \n\t" \ - "addu.ph %[temp0], %[temp0], %[dst_1] \n\t" \ -".if " #SIZE " == 8 \n\t" \ - "addu.ph %[temp3], %[temp3], %[dst_1] \n\t" \ - "addu.ph %[temp1], %[temp1], %[dst_1] \n\t" \ -".endif \n\t" \ - "shll_s.ph %[temp2], %[temp2], 7 \n\t" \ - "shll_s.ph %[temp0], %[temp0], 7 \n\t" \ -".if " #SIZE " == 8 \n\t" \ - "shll_s.ph %[temp3], %[temp3], 7 \n\t" \ - "shll_s.ph %[temp1], %[temp1], 7 \n\t" \ -".endif \n\t" \ - "precrqu_s.qb.ph %[temp0], %[temp2], %[temp0] \n\t" \ -".if " #SIZE " == 8 \n\t" \ - "precrqu_s.qb.ph %[temp1], %[temp3], %[temp1] \n\t" \ -".endif \n\t" - - -#define CLIP_8B_TO_DST(DST, TOP, SIZE) do { \ - int dst_1 = ((int)(DST)[-1] << 16) + (DST)[-1]; \ - int temp0, temp1, temp2, temp3; \ - __asm__ volatile ( \ - ".if " #SIZE " < 8 \n\t" \ - "ulw %[temp0], 0(%[top]) \n\t" \ - "subu.ph %[dst_1], %[dst_1], %[top_1] \n\t" \ - CLIPPING(4) \ - "usw %[temp0], 0(%[dst]) \n\t" \ - ".else \n\t" \ - "ulw %[temp0], 0(%[top]) \n\t" \ - "ulw %[temp1], 4(%[top]) \n\t" \ - "subu.ph %[dst_1], %[dst_1], %[top_1] \n\t" \ - CLIPPING(8) \ - "usw %[temp0], 0(%[dst]) \n\t" \ - "usw %[temp1], 4(%[dst]) \n\t" \ - ".if " #SIZE " == 16 \n\t" \ - "ulw %[temp0], 8(%[top]) \n\t" \ - "ulw %[temp1], 12(%[top]) \n\t" \ - CLIPPING(8) \ - "usw %[temp0], 8(%[dst]) \n\t" \ - "usw %[temp1], 12(%[dst]) \n\t" \ - ".endif \n\t" \ - ".endif \n\t" \ - : [dst_1]"+&r"(dst_1), [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), \ - [temp2]"=&r"(temp2), [temp3]"=&r"(temp3) \ - : [top_1]"r"(top_1), [top]"r"((TOP)), [dst]"r"((DST)) \ - : "memory" \ - ); \ -} while (0) - -#define CLIP_TO_DST(DST, SIZE) do { \ - int y; \ - const uint8_t* top = (DST) - BPS; \ - const int top_1 = ((int)top[-1] << 16) + top[-1]; \ - for (y = 0; y < (SIZE); ++y) { \ - CLIP_8B_TO_DST((DST), top, (SIZE)); \ - (DST) += BPS; \ - } \ -} while (0) - -#define TRUE_MOTION(DST, SIZE) \ -static void TrueMotion##SIZE(uint8_t* (DST)) { \ - CLIP_TO_DST((DST), (SIZE)); \ -} - -TRUE_MOTION(dst, 4) -TRUE_MOTION(dst, 8) -TRUE_MOTION(dst, 16) - -#undef TRUE_MOTION -#undef CLIP_TO_DST -#undef CLIP_8B_TO_DST -#undef CLIPPING - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8DspInitMIPSdspR2(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitMIPSdspR2(void) { - VP8TransformDC = TransformDC; - VP8TransformAC3 = TransformAC3; - VP8Transform = TransformTwo; - - VP8VFilter16 = VFilter16; - VP8HFilter16 = HFilter16; - VP8VFilter8 = VFilter8; - VP8HFilter8 = HFilter8; - VP8VFilter16i = VFilter16i; - VP8HFilter16i = HFilter16i; - VP8VFilter8i = VFilter8i; - VP8HFilter8i = HFilter8i; - VP8SimpleVFilter16 = SimpleVFilter16; - VP8SimpleHFilter16 = SimpleHFilter16; - VP8SimpleVFilter16i = SimpleVFilter16i; - VP8SimpleHFilter16i = SimpleHFilter16i; - - VP8PredLuma4[0] = DC4; - VP8PredLuma4[1] = TrueMotion4; - VP8PredLuma4[2] = VE4; - VP8PredLuma4[4] = RD4; - VP8PredLuma4[6] = LD4; - - VP8PredChroma8[0] = DC8uv; - VP8PredChroma8[1] = TrueMotion8; - VP8PredChroma8[4] = DC8uvNoTop; - VP8PredChroma8[5] = DC8uvNoLeft; - - VP8PredLuma16[1] = TrueMotion16; -} - -#else // !WEBP_USE_MIPS_DSP_R2 - -WEBP_DSP_INIT_STUB(VP8DspInitMIPSdspR2) - -#endif // WEBP_USE_MIPS_DSP_R2 diff --git a/drivers/webp/dsp/dec_msa.c b/drivers/webp/dsp/dec_msa.c deleted file mode 100644 index f76055cab0..0000000000 --- a/drivers/webp/dsp/dec_msa.c +++ /dev/null @@ -1,172 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// MSA version of dsp functions -// -// Author(s): Prashant Patil (prashant.patil@imgtec.com) - - -#include "./dsp.h" - -#if defined(WEBP_USE_MSA) - -#include "./msa_macro.h" - -//------------------------------------------------------------------------------ -// Transforms - -#define IDCT_1D_W(in0, in1, in2, in3, out0, out1, out2, out3) { \ - v4i32 a1_m, b1_m, c1_m, d1_m; \ - v4i32 c_tmp1_m, c_tmp2_m, d_tmp1_m, d_tmp2_m; \ - const v4i32 cospi8sqrt2minus1 = __msa_fill_w(20091); \ - const v4i32 sinpi8sqrt2 = __msa_fill_w(35468); \ - \ - a1_m = in0 + in2; \ - b1_m = in0 - in2; \ - c_tmp1_m = (in1 * sinpi8sqrt2) >> 16; \ - c_tmp2_m = in3 + ((in3 * cospi8sqrt2minus1) >> 16); \ - c1_m = c_tmp1_m - c_tmp2_m; \ - d_tmp1_m = in1 + ((in1 * cospi8sqrt2minus1) >> 16); \ - d_tmp2_m = (in3 * sinpi8sqrt2) >> 16; \ - d1_m = d_tmp1_m + d_tmp2_m; \ - BUTTERFLY_4(a1_m, b1_m, c1_m, d1_m, out0, out1, out2, out3); \ -} -#define MULT1(a) ((((a) * 20091) >> 16) + (a)) -#define MULT2(a) (((a) * 35468) >> 16) - -static void TransformOne(const int16_t* in, uint8_t* dst) { - v8i16 input0, input1; - v4i32 in0, in1, in2, in3, hz0, hz1, hz2, hz3, vt0, vt1, vt2, vt3; - v4i32 res0, res1, res2, res3; - const v16i8 zero = { 0 }; - v16i8 dest0, dest1, dest2, dest3; - - LD_SH2(in, 8, input0, input1); - UNPCK_SH_SW(input0, in0, in1); - UNPCK_SH_SW(input1, in2, in3); - IDCT_1D_W(in0, in1, in2, in3, hz0, hz1, hz2, hz3); - TRANSPOSE4x4_SW_SW(hz0, hz1, hz2, hz3, hz0, hz1, hz2, hz3); - IDCT_1D_W(hz0, hz1, hz2, hz3, vt0, vt1, vt2, vt3); - SRARI_W4_SW(vt0, vt1, vt2, vt3, 3); - TRANSPOSE4x4_SW_SW(vt0, vt1, vt2, vt3, vt0, vt1, vt2, vt3); - LD_SB4(dst, BPS, dest0, dest1, dest2, dest3); - ILVR_B4_SW(zero, dest0, zero, dest1, zero, dest2, zero, dest3, - res0, res1, res2, res3); - ILVR_H4_SW(zero, res0, zero, res1, zero, res2, zero, res3, - res0, res1, res2, res3); - ADD4(res0, vt0, res1, vt1, res2, vt2, res3, vt3, res0, res1, res2, res3); - CLIP_SW4_0_255(res0, res1, res2, res3); - PCKEV_B2_SW(res0, res1, res2, res3, vt0, vt1); - res0 = (v4i32)__msa_pckev_b((v16i8)vt0, (v16i8)vt1); - ST4x4_UB(res0, res0, 3, 2, 1, 0, dst, BPS); -} - -static void TransformTwo(const int16_t* in, uint8_t* dst, int do_two) { - TransformOne(in, dst); - if (do_two) { - TransformOne(in + 16, dst + 4); - } -} - -static void TransformWHT(const int16_t* in, int16_t* out) { - v8i16 input0, input1; - const v8i16 mask0 = { 0, 1, 2, 3, 8, 9, 10, 11 }; - const v8i16 mask1 = { 4, 5, 6, 7, 12, 13, 14, 15 }; - const v8i16 mask2 = { 0, 4, 8, 12, 1, 5, 9, 13 }; - const v8i16 mask3 = { 3, 7, 11, 15, 2, 6, 10, 14 }; - v8i16 tmp0, tmp1, tmp2, tmp3; - v8i16 out0, out1; - - LD_SH2(in, 8, input0, input1); - input1 = SLDI_SH(input1, input1, 8); - tmp0 = input0 + input1; - tmp1 = input0 - input1; - VSHF_H2_SH(tmp0, tmp1, tmp0, tmp1, mask0, mask1, tmp2, tmp3); - out0 = tmp2 + tmp3; - out1 = tmp2 - tmp3; - VSHF_H2_SH(out0, out1, out0, out1, mask2, mask3, input0, input1); - tmp0 = input0 + input1; - tmp1 = input0 - input1; - VSHF_H2_SH(tmp0, tmp1, tmp0, tmp1, mask0, mask1, tmp2, tmp3); - tmp0 = tmp2 + tmp3; - tmp1 = tmp2 - tmp3; - ADDVI_H2_SH(tmp0, 3, tmp1, 3, out0, out1); - SRAI_H2_SH(out0, out1, 3); - out[0] = __msa_copy_s_h(out0, 0); - out[16] = __msa_copy_s_h(out0, 4); - out[32] = __msa_copy_s_h(out1, 0); - out[48] = __msa_copy_s_h(out1, 4); - out[64] = __msa_copy_s_h(out0, 1); - out[80] = __msa_copy_s_h(out0, 5); - out[96] = __msa_copy_s_h(out1, 1); - out[112] = __msa_copy_s_h(out1, 5); - out[128] = __msa_copy_s_h(out0, 2); - out[144] = __msa_copy_s_h(out0, 6); - out[160] = __msa_copy_s_h(out1, 2); - out[176] = __msa_copy_s_h(out1, 6); - out[192] = __msa_copy_s_h(out0, 3); - out[208] = __msa_copy_s_h(out0, 7); - out[224] = __msa_copy_s_h(out1, 3); - out[240] = __msa_copy_s_h(out1, 7); -} - -static void TransformDC(const int16_t* in, uint8_t* dst) { - const int DC = (in[0] + 4) >> 3; - const v8i16 tmp0 = __msa_fill_h(DC); - ADDBLK_ST4x4_UB(tmp0, tmp0, tmp0, tmp0, dst, BPS); -} - -static void TransformAC3(const int16_t* in, uint8_t* dst) { - const int a = in[0] + 4; - const int c4 = MULT2(in[4]); - const int d4 = MULT1(in[4]); - const int in2 = MULT2(in[1]); - const int in3 = MULT1(in[1]); - v4i32 tmp0 = { 0 }; - v4i32 out0 = __msa_fill_w(a + d4); - v4i32 out1 = __msa_fill_w(a + c4); - v4i32 out2 = __msa_fill_w(a - c4); - v4i32 out3 = __msa_fill_w(a - d4); - v4i32 res0, res1, res2, res3; - const v4i32 zero = { 0 }; - v16u8 dest0, dest1, dest2, dest3; - - INSERT_W4_SW(in3, in2, -in2, -in3, tmp0); - ADD4(out0, tmp0, out1, tmp0, out2, tmp0, out3, tmp0, - out0, out1, out2, out3); - SRAI_W4_SW(out0, out1, out2, out3, 3); - LD_UB4(dst, BPS, dest0, dest1, dest2, dest3); - ILVR_B4_SW(zero, dest0, zero, dest1, zero, dest2, zero, dest3, - res0, res1, res2, res3); - ILVR_H4_SW(zero, res0, zero, res1, zero, res2, zero, res3, - res0, res1, res2, res3); - ADD4(res0, out0, res1, out1, res2, out2, res3, out3, res0, res1, res2, res3); - CLIP_SW4_0_255(res0, res1, res2, res3); - PCKEV_B2_SW(res0, res1, res2, res3, out0, out1); - res0 = (v4i32)__msa_pckev_b((v16i8)out0, (v16i8)out1); - ST4x4_UB(res0, res0, 3, 2, 1, 0, dst, BPS); -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8DspInitMSA(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitMSA(void) { - VP8TransformWHT = TransformWHT; - VP8Transform = TransformTwo; - VP8TransformDC = TransformDC; - VP8TransformAC3 = TransformAC3; -} - -#else // !WEBP_USE_MSA - -WEBP_DSP_INIT_STUB(VP8DspInitMSA) - -#endif // WEBP_USE_MSA diff --git a/drivers/webp/dsp/dec_neon.c b/drivers/webp/dsp/dec_neon.c deleted file mode 100644 index a63f43fe17..0000000000 --- a/drivers/webp/dsp/dec_neon.c +++ /dev/null @@ -1,1639 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// ARM NEON version of dsp functions and loop filtering. -// -// Authors: Somnath Banerjee (somnath@google.com) -// Johann Koenig (johannkoenig@google.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_NEON) - -#include "./neon.h" -#include "../dec/vp8i.h" - -//------------------------------------------------------------------------------ -// NxM Loading functions - -// Load/Store vertical edge -#define LOAD8x4(c1, c2, c3, c4, b1, b2, stride) \ - "vld4.8 {" #c1 "[0]," #c2 "[0]," #c3 "[0]," #c4 "[0]}," #b1 "," #stride "\n" \ - "vld4.8 {" #c1 "[1]," #c2 "[1]," #c3 "[1]," #c4 "[1]}," #b2 "," #stride "\n" \ - "vld4.8 {" #c1 "[2]," #c2 "[2]," #c3 "[2]," #c4 "[2]}," #b1 "," #stride "\n" \ - "vld4.8 {" #c1 "[3]," #c2 "[3]," #c3 "[3]," #c4 "[3]}," #b2 "," #stride "\n" \ - "vld4.8 {" #c1 "[4]," #c2 "[4]," #c3 "[4]," #c4 "[4]}," #b1 "," #stride "\n" \ - "vld4.8 {" #c1 "[5]," #c2 "[5]," #c3 "[5]," #c4 "[5]}," #b2 "," #stride "\n" \ - "vld4.8 {" #c1 "[6]," #c2 "[6]," #c3 "[6]," #c4 "[6]}," #b1 "," #stride "\n" \ - "vld4.8 {" #c1 "[7]," #c2 "[7]," #c3 "[7]," #c4 "[7]}," #b2 "," #stride "\n" - -#define STORE8x2(c1, c2, p, stride) \ - "vst2.8 {" #c1 "[0], " #c2 "[0]}," #p "," #stride " \n" \ - "vst2.8 {" #c1 "[1], " #c2 "[1]}," #p "," #stride " \n" \ - "vst2.8 {" #c1 "[2], " #c2 "[2]}," #p "," #stride " \n" \ - "vst2.8 {" #c1 "[3], " #c2 "[3]}," #p "," #stride " \n" \ - "vst2.8 {" #c1 "[4], " #c2 "[4]}," #p "," #stride " \n" \ - "vst2.8 {" #c1 "[5], " #c2 "[5]}," #p "," #stride " \n" \ - "vst2.8 {" #c1 "[6], " #c2 "[6]}," #p "," #stride " \n" \ - "vst2.8 {" #c1 "[7], " #c2 "[7]}," #p "," #stride " \n" - -#if !defined(WORK_AROUND_GCC) - -// This intrinsics version makes gcc-4.6.3 crash during Load4x??() compilation -// (register alloc, probably). The variants somewhat mitigate the problem, but -// not quite. HFilter16i() remains problematic. -static WEBP_INLINE uint8x8x4_t Load4x8(const uint8_t* const src, int stride) { - const uint8x8_t zero = vdup_n_u8(0); - uint8x8x4_t out; - INIT_VECTOR4(out, zero, zero, zero, zero); - out = vld4_lane_u8(src + 0 * stride, out, 0); - out = vld4_lane_u8(src + 1 * stride, out, 1); - out = vld4_lane_u8(src + 2 * stride, out, 2); - out = vld4_lane_u8(src + 3 * stride, out, 3); - out = vld4_lane_u8(src + 4 * stride, out, 4); - out = vld4_lane_u8(src + 5 * stride, out, 5); - out = vld4_lane_u8(src + 6 * stride, out, 6); - out = vld4_lane_u8(src + 7 * stride, out, 7); - return out; -} - -static WEBP_INLINE void Load4x16(const uint8_t* const src, int stride, - uint8x16_t* const p1, uint8x16_t* const p0, - uint8x16_t* const q0, uint8x16_t* const q1) { - // row0 = p1[0..7]|p0[0..7]|q0[0..7]|q1[0..7] - // row8 = p1[8..15]|p0[8..15]|q0[8..15]|q1[8..15] - const uint8x8x4_t row0 = Load4x8(src - 2 + 0 * stride, stride); - const uint8x8x4_t row8 = Load4x8(src - 2 + 8 * stride, stride); - *p1 = vcombine_u8(row0.val[0], row8.val[0]); - *p0 = vcombine_u8(row0.val[1], row8.val[1]); - *q0 = vcombine_u8(row0.val[2], row8.val[2]); - *q1 = vcombine_u8(row0.val[3], row8.val[3]); -} - -#else // WORK_AROUND_GCC - -#define LOADQ_LANE_32b(VALUE, LANE) do { \ - (VALUE) = vld1q_lane_u32((const uint32_t*)src, (VALUE), (LANE)); \ - src += stride; \ -} while (0) - -static WEBP_INLINE void Load4x16(const uint8_t* src, int stride, - uint8x16_t* const p1, uint8x16_t* const p0, - uint8x16_t* const q0, uint8x16_t* const q1) { - const uint32x4_t zero = vdupq_n_u32(0); - uint32x4x4_t in; - INIT_VECTOR4(in, zero, zero, zero, zero); - src -= 2; - LOADQ_LANE_32b(in.val[0], 0); - LOADQ_LANE_32b(in.val[1], 0); - LOADQ_LANE_32b(in.val[2], 0); - LOADQ_LANE_32b(in.val[3], 0); - LOADQ_LANE_32b(in.val[0], 1); - LOADQ_LANE_32b(in.val[1], 1); - LOADQ_LANE_32b(in.val[2], 1); - LOADQ_LANE_32b(in.val[3], 1); - LOADQ_LANE_32b(in.val[0], 2); - LOADQ_LANE_32b(in.val[1], 2); - LOADQ_LANE_32b(in.val[2], 2); - LOADQ_LANE_32b(in.val[3], 2); - LOADQ_LANE_32b(in.val[0], 3); - LOADQ_LANE_32b(in.val[1], 3); - LOADQ_LANE_32b(in.val[2], 3); - LOADQ_LANE_32b(in.val[3], 3); - // Transpose four 4x4 parts: - { - const uint8x16x2_t row01 = vtrnq_u8(vreinterpretq_u8_u32(in.val[0]), - vreinterpretq_u8_u32(in.val[1])); - const uint8x16x2_t row23 = vtrnq_u8(vreinterpretq_u8_u32(in.val[2]), - vreinterpretq_u8_u32(in.val[3])); - const uint16x8x2_t row02 = vtrnq_u16(vreinterpretq_u16_u8(row01.val[0]), - vreinterpretq_u16_u8(row23.val[0])); - const uint16x8x2_t row13 = vtrnq_u16(vreinterpretq_u16_u8(row01.val[1]), - vreinterpretq_u16_u8(row23.val[1])); - *p1 = vreinterpretq_u8_u16(row02.val[0]); - *p0 = vreinterpretq_u8_u16(row13.val[0]); - *q0 = vreinterpretq_u8_u16(row02.val[1]); - *q1 = vreinterpretq_u8_u16(row13.val[1]); - } -} -#undef LOADQ_LANE_32b - -#endif // !WORK_AROUND_GCC - -static WEBP_INLINE void Load8x16(const uint8_t* const src, int stride, - uint8x16_t* const p3, uint8x16_t* const p2, - uint8x16_t* const p1, uint8x16_t* const p0, - uint8x16_t* const q0, uint8x16_t* const q1, - uint8x16_t* const q2, uint8x16_t* const q3) { - Load4x16(src - 2, stride, p3, p2, p1, p0); - Load4x16(src + 2, stride, q0, q1, q2, q3); -} - -static WEBP_INLINE void Load16x4(const uint8_t* const src, int stride, - uint8x16_t* const p1, uint8x16_t* const p0, - uint8x16_t* const q0, uint8x16_t* const q1) { - *p1 = vld1q_u8(src - 2 * stride); - *p0 = vld1q_u8(src - 1 * stride); - *q0 = vld1q_u8(src + 0 * stride); - *q1 = vld1q_u8(src + 1 * stride); -} - -static WEBP_INLINE void Load16x8(const uint8_t* const src, int stride, - uint8x16_t* const p3, uint8x16_t* const p2, - uint8x16_t* const p1, uint8x16_t* const p0, - uint8x16_t* const q0, uint8x16_t* const q1, - uint8x16_t* const q2, uint8x16_t* const q3) { - Load16x4(src - 2 * stride, stride, p3, p2, p1, p0); - Load16x4(src + 2 * stride, stride, q0, q1, q2, q3); -} - -static WEBP_INLINE void Load8x8x2(const uint8_t* const u, - const uint8_t* const v, - int stride, - uint8x16_t* const p3, uint8x16_t* const p2, - uint8x16_t* const p1, uint8x16_t* const p0, - uint8x16_t* const q0, uint8x16_t* const q1, - uint8x16_t* const q2, uint8x16_t* const q3) { - // We pack the 8x8 u-samples in the lower half of the uint8x16_t destination - // and the v-samples on the higher half. - *p3 = vcombine_u8(vld1_u8(u - 4 * stride), vld1_u8(v - 4 * stride)); - *p2 = vcombine_u8(vld1_u8(u - 3 * stride), vld1_u8(v - 3 * stride)); - *p1 = vcombine_u8(vld1_u8(u - 2 * stride), vld1_u8(v - 2 * stride)); - *p0 = vcombine_u8(vld1_u8(u - 1 * stride), vld1_u8(v - 1 * stride)); - *q0 = vcombine_u8(vld1_u8(u + 0 * stride), vld1_u8(v + 0 * stride)); - *q1 = vcombine_u8(vld1_u8(u + 1 * stride), vld1_u8(v + 1 * stride)); - *q2 = vcombine_u8(vld1_u8(u + 2 * stride), vld1_u8(v + 2 * stride)); - *q3 = vcombine_u8(vld1_u8(u + 3 * stride), vld1_u8(v + 3 * stride)); -} - -#if !defined(WORK_AROUND_GCC) - -#define LOAD_UV_8(ROW) \ - vcombine_u8(vld1_u8(u - 4 + (ROW) * stride), vld1_u8(v - 4 + (ROW) * stride)) - -static WEBP_INLINE void Load8x8x2T(const uint8_t* const u, - const uint8_t* const v, - int stride, - uint8x16_t* const p3, uint8x16_t* const p2, - uint8x16_t* const p1, uint8x16_t* const p0, - uint8x16_t* const q0, uint8x16_t* const q1, - uint8x16_t* const q2, uint8x16_t* const q3) { - // We pack the 8x8 u-samples in the lower half of the uint8x16_t destination - // and the v-samples on the higher half. - const uint8x16_t row0 = LOAD_UV_8(0); - const uint8x16_t row1 = LOAD_UV_8(1); - const uint8x16_t row2 = LOAD_UV_8(2); - const uint8x16_t row3 = LOAD_UV_8(3); - const uint8x16_t row4 = LOAD_UV_8(4); - const uint8x16_t row5 = LOAD_UV_8(5); - const uint8x16_t row6 = LOAD_UV_8(6); - const uint8x16_t row7 = LOAD_UV_8(7); - // Perform two side-by-side 8x8 transposes - // u00 u01 u02 u03 u04 u05 u06 u07 | v00 v01 v02 v03 v04 v05 v06 v07 - // u10 u11 u12 u13 u14 u15 u16 u17 | v10 v11 v12 ... - // u20 u21 u22 u23 u24 u25 u26 u27 | v20 v21 ... - // u30 u31 u32 u33 u34 u35 u36 u37 | ... - // u40 u41 u42 u43 u44 u45 u46 u47 | ... - // u50 u51 u52 u53 u54 u55 u56 u57 | ... - // u60 u61 u62 u63 u64 u65 u66 u67 | v60 ... - // u70 u71 u72 u73 u74 u75 u76 u77 | v70 v71 v72 ... - const uint8x16x2_t row01 = vtrnq_u8(row0, row1); // u00 u10 u02 u12 ... - // u01 u11 u03 u13 ... - const uint8x16x2_t row23 = vtrnq_u8(row2, row3); // u20 u30 u22 u32 ... - // u21 u31 u23 u33 ... - const uint8x16x2_t row45 = vtrnq_u8(row4, row5); // ... - const uint8x16x2_t row67 = vtrnq_u8(row6, row7); // ... - const uint16x8x2_t row02 = vtrnq_u16(vreinterpretq_u16_u8(row01.val[0]), - vreinterpretq_u16_u8(row23.val[0])); - const uint16x8x2_t row13 = vtrnq_u16(vreinterpretq_u16_u8(row01.val[1]), - vreinterpretq_u16_u8(row23.val[1])); - const uint16x8x2_t row46 = vtrnq_u16(vreinterpretq_u16_u8(row45.val[0]), - vreinterpretq_u16_u8(row67.val[0])); - const uint16x8x2_t row57 = vtrnq_u16(vreinterpretq_u16_u8(row45.val[1]), - vreinterpretq_u16_u8(row67.val[1])); - const uint32x4x2_t row04 = vtrnq_u32(vreinterpretq_u32_u16(row02.val[0]), - vreinterpretq_u32_u16(row46.val[0])); - const uint32x4x2_t row26 = vtrnq_u32(vreinterpretq_u32_u16(row02.val[1]), - vreinterpretq_u32_u16(row46.val[1])); - const uint32x4x2_t row15 = vtrnq_u32(vreinterpretq_u32_u16(row13.val[0]), - vreinterpretq_u32_u16(row57.val[0])); - const uint32x4x2_t row37 = vtrnq_u32(vreinterpretq_u32_u16(row13.val[1]), - vreinterpretq_u32_u16(row57.val[1])); - *p3 = vreinterpretq_u8_u32(row04.val[0]); - *p2 = vreinterpretq_u8_u32(row15.val[0]); - *p1 = vreinterpretq_u8_u32(row26.val[0]); - *p0 = vreinterpretq_u8_u32(row37.val[0]); - *q0 = vreinterpretq_u8_u32(row04.val[1]); - *q1 = vreinterpretq_u8_u32(row15.val[1]); - *q2 = vreinterpretq_u8_u32(row26.val[1]); - *q3 = vreinterpretq_u8_u32(row37.val[1]); -} -#undef LOAD_UV_8 - -#endif // !WORK_AROUND_GCC - -static WEBP_INLINE void Store2x8(const uint8x8x2_t v, - uint8_t* const dst, int stride) { - vst2_lane_u8(dst + 0 * stride, v, 0); - vst2_lane_u8(dst + 1 * stride, v, 1); - vst2_lane_u8(dst + 2 * stride, v, 2); - vst2_lane_u8(dst + 3 * stride, v, 3); - vst2_lane_u8(dst + 4 * stride, v, 4); - vst2_lane_u8(dst + 5 * stride, v, 5); - vst2_lane_u8(dst + 6 * stride, v, 6); - vst2_lane_u8(dst + 7 * stride, v, 7); -} - -static WEBP_INLINE void Store2x16(const uint8x16_t p0, const uint8x16_t q0, - uint8_t* const dst, int stride) { - uint8x8x2_t lo, hi; - lo.val[0] = vget_low_u8(p0); - lo.val[1] = vget_low_u8(q0); - hi.val[0] = vget_high_u8(p0); - hi.val[1] = vget_high_u8(q0); - Store2x8(lo, dst - 1 + 0 * stride, stride); - Store2x8(hi, dst - 1 + 8 * stride, stride); -} - -#if !defined(WORK_AROUND_GCC) -static WEBP_INLINE void Store4x8(const uint8x8x4_t v, - uint8_t* const dst, int stride) { - vst4_lane_u8(dst + 0 * stride, v, 0); - vst4_lane_u8(dst + 1 * stride, v, 1); - vst4_lane_u8(dst + 2 * stride, v, 2); - vst4_lane_u8(dst + 3 * stride, v, 3); - vst4_lane_u8(dst + 4 * stride, v, 4); - vst4_lane_u8(dst + 5 * stride, v, 5); - vst4_lane_u8(dst + 6 * stride, v, 6); - vst4_lane_u8(dst + 7 * stride, v, 7); -} - -static WEBP_INLINE void Store4x16(const uint8x16_t p1, const uint8x16_t p0, - const uint8x16_t q0, const uint8x16_t q1, - uint8_t* const dst, int stride) { - uint8x8x4_t lo, hi; - INIT_VECTOR4(lo, - vget_low_u8(p1), vget_low_u8(p0), - vget_low_u8(q0), vget_low_u8(q1)); - INIT_VECTOR4(hi, - vget_high_u8(p1), vget_high_u8(p0), - vget_high_u8(q0), vget_high_u8(q1)); - Store4x8(lo, dst - 2 + 0 * stride, stride); - Store4x8(hi, dst - 2 + 8 * stride, stride); -} -#endif // !WORK_AROUND_GCC - -static WEBP_INLINE void Store16x2(const uint8x16_t p0, const uint8x16_t q0, - uint8_t* const dst, int stride) { - vst1q_u8(dst - stride, p0); - vst1q_u8(dst, q0); -} - -static WEBP_INLINE void Store16x4(const uint8x16_t p1, const uint8x16_t p0, - const uint8x16_t q0, const uint8x16_t q1, - uint8_t* const dst, int stride) { - Store16x2(p1, p0, dst - stride, stride); - Store16x2(q0, q1, dst + stride, stride); -} - -static WEBP_INLINE void Store8x2x2(const uint8x16_t p0, const uint8x16_t q0, - uint8_t* const u, uint8_t* const v, - int stride) { - // p0 and q0 contain the u+v samples packed in low/high halves. - vst1_u8(u - stride, vget_low_u8(p0)); - vst1_u8(u, vget_low_u8(q0)); - vst1_u8(v - stride, vget_high_u8(p0)); - vst1_u8(v, vget_high_u8(q0)); -} - -static WEBP_INLINE void Store8x4x2(const uint8x16_t p1, const uint8x16_t p0, - const uint8x16_t q0, const uint8x16_t q1, - uint8_t* const u, uint8_t* const v, - int stride) { - // The p1...q1 registers contain the u+v samples packed in low/high halves. - Store8x2x2(p1, p0, u - stride, v - stride, stride); - Store8x2x2(q0, q1, u + stride, v + stride, stride); -} - -#if !defined(WORK_AROUND_GCC) - -#define STORE6_LANE(DST, VAL0, VAL1, LANE) do { \ - vst3_lane_u8((DST) - 3, (VAL0), (LANE)); \ - vst3_lane_u8((DST) + 0, (VAL1), (LANE)); \ - (DST) += stride; \ -} while (0) - -static WEBP_INLINE void Store6x8x2(const uint8x16_t p2, const uint8x16_t p1, - const uint8x16_t p0, const uint8x16_t q0, - const uint8x16_t q1, const uint8x16_t q2, - uint8_t* u, uint8_t* v, - int stride) { - uint8x8x3_t u0, u1, v0, v1; - INIT_VECTOR3(u0, vget_low_u8(p2), vget_low_u8(p1), vget_low_u8(p0)); - INIT_VECTOR3(u1, vget_low_u8(q0), vget_low_u8(q1), vget_low_u8(q2)); - INIT_VECTOR3(v0, vget_high_u8(p2), vget_high_u8(p1), vget_high_u8(p0)); - INIT_VECTOR3(v1, vget_high_u8(q0), vget_high_u8(q1), vget_high_u8(q2)); - STORE6_LANE(u, u0, u1, 0); - STORE6_LANE(u, u0, u1, 1); - STORE6_LANE(u, u0, u1, 2); - STORE6_LANE(u, u0, u1, 3); - STORE6_LANE(u, u0, u1, 4); - STORE6_LANE(u, u0, u1, 5); - STORE6_LANE(u, u0, u1, 6); - STORE6_LANE(u, u0, u1, 7); - STORE6_LANE(v, v0, v1, 0); - STORE6_LANE(v, v0, v1, 1); - STORE6_LANE(v, v0, v1, 2); - STORE6_LANE(v, v0, v1, 3); - STORE6_LANE(v, v0, v1, 4); - STORE6_LANE(v, v0, v1, 5); - STORE6_LANE(v, v0, v1, 6); - STORE6_LANE(v, v0, v1, 7); -} -#undef STORE6_LANE - -static WEBP_INLINE void Store4x8x2(const uint8x16_t p1, const uint8x16_t p0, - const uint8x16_t q0, const uint8x16_t q1, - uint8_t* const u, uint8_t* const v, - int stride) { - uint8x8x4_t u0, v0; - INIT_VECTOR4(u0, - vget_low_u8(p1), vget_low_u8(p0), - vget_low_u8(q0), vget_low_u8(q1)); - INIT_VECTOR4(v0, - vget_high_u8(p1), vget_high_u8(p0), - vget_high_u8(q0), vget_high_u8(q1)); - vst4_lane_u8(u - 2 + 0 * stride, u0, 0); - vst4_lane_u8(u - 2 + 1 * stride, u0, 1); - vst4_lane_u8(u - 2 + 2 * stride, u0, 2); - vst4_lane_u8(u - 2 + 3 * stride, u0, 3); - vst4_lane_u8(u - 2 + 4 * stride, u0, 4); - vst4_lane_u8(u - 2 + 5 * stride, u0, 5); - vst4_lane_u8(u - 2 + 6 * stride, u0, 6); - vst4_lane_u8(u - 2 + 7 * stride, u0, 7); - vst4_lane_u8(v - 2 + 0 * stride, v0, 0); - vst4_lane_u8(v - 2 + 1 * stride, v0, 1); - vst4_lane_u8(v - 2 + 2 * stride, v0, 2); - vst4_lane_u8(v - 2 + 3 * stride, v0, 3); - vst4_lane_u8(v - 2 + 4 * stride, v0, 4); - vst4_lane_u8(v - 2 + 5 * stride, v0, 5); - vst4_lane_u8(v - 2 + 6 * stride, v0, 6); - vst4_lane_u8(v - 2 + 7 * stride, v0, 7); -} - -#endif // !WORK_AROUND_GCC - -// Zero extend 'v' to an int16x8_t. -static WEBP_INLINE int16x8_t ConvertU8ToS16(uint8x8_t v) { - return vreinterpretq_s16_u16(vmovl_u8(v)); -} - -// Performs unsigned 8b saturation on 'dst01' and 'dst23' storing the result -// to the corresponding rows of 'dst'. -static WEBP_INLINE void SaturateAndStore4x4(uint8_t* const dst, - const int16x8_t dst01, - const int16x8_t dst23) { - // Unsigned saturate to 8b. - const uint8x8_t dst01_u8 = vqmovun_s16(dst01); - const uint8x8_t dst23_u8 = vqmovun_s16(dst23); - - // Store the results. - vst1_lane_u32((uint32_t*)(dst + 0 * BPS), vreinterpret_u32_u8(dst01_u8), 0); - vst1_lane_u32((uint32_t*)(dst + 1 * BPS), vreinterpret_u32_u8(dst01_u8), 1); - vst1_lane_u32((uint32_t*)(dst + 2 * BPS), vreinterpret_u32_u8(dst23_u8), 0); - vst1_lane_u32((uint32_t*)(dst + 3 * BPS), vreinterpret_u32_u8(dst23_u8), 1); -} - -static WEBP_INLINE void Add4x4(const int16x8_t row01, const int16x8_t row23, - uint8_t* const dst) { - uint32x2_t dst01 = vdup_n_u32(0); - uint32x2_t dst23 = vdup_n_u32(0); - - // Load the source pixels. - dst01 = vld1_lane_u32((uint32_t*)(dst + 0 * BPS), dst01, 0); - dst23 = vld1_lane_u32((uint32_t*)(dst + 2 * BPS), dst23, 0); - dst01 = vld1_lane_u32((uint32_t*)(dst + 1 * BPS), dst01, 1); - dst23 = vld1_lane_u32((uint32_t*)(dst + 3 * BPS), dst23, 1); - - { - // Convert to 16b. - const int16x8_t dst01_s16 = ConvertU8ToS16(vreinterpret_u8_u32(dst01)); - const int16x8_t dst23_s16 = ConvertU8ToS16(vreinterpret_u8_u32(dst23)); - - // Descale with rounding. - const int16x8_t out01 = vrsraq_n_s16(dst01_s16, row01, 3); - const int16x8_t out23 = vrsraq_n_s16(dst23_s16, row23, 3); - // Add the inverse transform. - SaturateAndStore4x4(dst, out01, out23); - } -} - -//----------------------------------------------------------------------------- -// Simple In-loop filtering (Paragraph 15.2) - -static uint8x16_t NeedsFilter(const uint8x16_t p1, const uint8x16_t p0, - const uint8x16_t q0, const uint8x16_t q1, - int thresh) { - const uint8x16_t thresh_v = vdupq_n_u8((uint8_t)thresh); - const uint8x16_t a_p0_q0 = vabdq_u8(p0, q0); // abs(p0-q0) - const uint8x16_t a_p1_q1 = vabdq_u8(p1, q1); // abs(p1-q1) - const uint8x16_t a_p0_q0_2 = vqaddq_u8(a_p0_q0, a_p0_q0); // 2 * abs(p0-q0) - const uint8x16_t a_p1_q1_2 = vshrq_n_u8(a_p1_q1, 1); // abs(p1-q1) / 2 - const uint8x16_t sum = vqaddq_u8(a_p0_q0_2, a_p1_q1_2); - const uint8x16_t mask = vcgeq_u8(thresh_v, sum); - return mask; -} - -static int8x16_t FlipSign(const uint8x16_t v) { - const uint8x16_t sign_bit = vdupq_n_u8(0x80); - return vreinterpretq_s8_u8(veorq_u8(v, sign_bit)); -} - -static uint8x16_t FlipSignBack(const int8x16_t v) { - const int8x16_t sign_bit = vdupq_n_s8(0x80); - return vreinterpretq_u8_s8(veorq_s8(v, sign_bit)); -} - -static int8x16_t GetBaseDelta(const int8x16_t p1, const int8x16_t p0, - const int8x16_t q0, const int8x16_t q1) { - const int8x16_t q0_p0 = vqsubq_s8(q0, p0); // (q0-p0) - const int8x16_t p1_q1 = vqsubq_s8(p1, q1); // (p1-q1) - const int8x16_t s1 = vqaddq_s8(p1_q1, q0_p0); // (p1-q1) + 1 * (q0 - p0) - const int8x16_t s2 = vqaddq_s8(q0_p0, s1); // (p1-q1) + 2 * (q0 - p0) - const int8x16_t s3 = vqaddq_s8(q0_p0, s2); // (p1-q1) + 3 * (q0 - p0) - return s3; -} - -static int8x16_t GetBaseDelta0(const int8x16_t p0, const int8x16_t q0) { - const int8x16_t q0_p0 = vqsubq_s8(q0, p0); // (q0-p0) - const int8x16_t s1 = vqaddq_s8(q0_p0, q0_p0); // 2 * (q0 - p0) - const int8x16_t s2 = vqaddq_s8(q0_p0, s1); // 3 * (q0 - p0) - return s2; -} - -//------------------------------------------------------------------------------ - -static void ApplyFilter2NoFlip(const int8x16_t p0s, const int8x16_t q0s, - const int8x16_t delta, - int8x16_t* const op0, int8x16_t* const oq0) { - const int8x16_t kCst3 = vdupq_n_s8(0x03); - const int8x16_t kCst4 = vdupq_n_s8(0x04); - const int8x16_t delta_p3 = vqaddq_s8(delta, kCst3); - const int8x16_t delta_p4 = vqaddq_s8(delta, kCst4); - const int8x16_t delta3 = vshrq_n_s8(delta_p3, 3); - const int8x16_t delta4 = vshrq_n_s8(delta_p4, 3); - *op0 = vqaddq_s8(p0s, delta3); - *oq0 = vqsubq_s8(q0s, delta4); -} - -#if defined(WEBP_USE_INTRINSICS) - -static void ApplyFilter2(const int8x16_t p0s, const int8x16_t q0s, - const int8x16_t delta, - uint8x16_t* const op0, uint8x16_t* const oq0) { - const int8x16_t kCst3 = vdupq_n_s8(0x03); - const int8x16_t kCst4 = vdupq_n_s8(0x04); - const int8x16_t delta_p3 = vqaddq_s8(delta, kCst3); - const int8x16_t delta_p4 = vqaddq_s8(delta, kCst4); - const int8x16_t delta3 = vshrq_n_s8(delta_p3, 3); - const int8x16_t delta4 = vshrq_n_s8(delta_p4, 3); - const int8x16_t sp0 = vqaddq_s8(p0s, delta3); - const int8x16_t sq0 = vqsubq_s8(q0s, delta4); - *op0 = FlipSignBack(sp0); - *oq0 = FlipSignBack(sq0); -} - -static void DoFilter2(const uint8x16_t p1, const uint8x16_t p0, - const uint8x16_t q0, const uint8x16_t q1, - const uint8x16_t mask, - uint8x16_t* const op0, uint8x16_t* const oq0) { - const int8x16_t p1s = FlipSign(p1); - const int8x16_t p0s = FlipSign(p0); - const int8x16_t q0s = FlipSign(q0); - const int8x16_t q1s = FlipSign(q1); - const int8x16_t delta0 = GetBaseDelta(p1s, p0s, q0s, q1s); - const int8x16_t delta1 = vandq_s8(delta0, vreinterpretq_s8_u8(mask)); - ApplyFilter2(p0s, q0s, delta1, op0, oq0); -} - -static void SimpleVFilter16(uint8_t* p, int stride, int thresh) { - uint8x16_t p1, p0, q0, q1, op0, oq0; - Load16x4(p, stride, &p1, &p0, &q0, &q1); - { - const uint8x16_t mask = NeedsFilter(p1, p0, q0, q1, thresh); - DoFilter2(p1, p0, q0, q1, mask, &op0, &oq0); - } - Store16x2(op0, oq0, p, stride); -} - -static void SimpleHFilter16(uint8_t* p, int stride, int thresh) { - uint8x16_t p1, p0, q0, q1, oq0, op0; - Load4x16(p, stride, &p1, &p0, &q0, &q1); - { - const uint8x16_t mask = NeedsFilter(p1, p0, q0, q1, thresh); - DoFilter2(p1, p0, q0, q1, mask, &op0, &oq0); - } - Store2x16(op0, oq0, p, stride); -} - -#else - -#define QRegs "q0", "q1", "q2", "q3", \ - "q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15" - -#define FLIP_SIGN_BIT2(a, b, s) \ - "veor " #a "," #a "," #s " \n" \ - "veor " #b "," #b "," #s " \n" \ - -#define FLIP_SIGN_BIT4(a, b, c, d, s) \ - FLIP_SIGN_BIT2(a, b, s) \ - FLIP_SIGN_BIT2(c, d, s) \ - -#define NEEDS_FILTER(p1, p0, q0, q1, thresh, mask) \ - "vabd.u8 q15," #p0 "," #q0 " \n" /* abs(p0 - q0) */ \ - "vabd.u8 q14," #p1 "," #q1 " \n" /* abs(p1 - q1) */ \ - "vqadd.u8 q15, q15, q15 \n" /* abs(p0 - q0) * 2 */ \ - "vshr.u8 q14, q14, #1 \n" /* abs(p1 - q1) / 2 */ \ - "vqadd.u8 q15, q15, q14 \n" /* abs(p0 - q0) * 2 + abs(p1 - q1) / 2 */ \ - "vdup.8 q14, " #thresh " \n" \ - "vcge.u8 " #mask ", q14, q15 \n" /* mask <= thresh */ - -#define GET_BASE_DELTA(p1, p0, q0, q1, o) \ - "vqsub.s8 q15," #q0 "," #p0 " \n" /* (q0 - p0) */ \ - "vqsub.s8 " #o "," #p1 "," #q1 " \n" /* (p1 - q1) */ \ - "vqadd.s8 " #o "," #o ", q15 \n" /* (p1 - q1) + 1 * (p0 - q0) */ \ - "vqadd.s8 " #o "," #o ", q15 \n" /* (p1 - q1) + 2 * (p0 - q0) */ \ - "vqadd.s8 " #o "," #o ", q15 \n" /* (p1 - q1) + 3 * (p0 - q0) */ - -#define DO_SIMPLE_FILTER(p0, q0, fl) \ - "vmov.i8 q15, #0x03 \n" \ - "vqadd.s8 q15, q15, " #fl " \n" /* filter1 = filter + 3 */ \ - "vshr.s8 q15, q15, #3 \n" /* filter1 >> 3 */ \ - "vqadd.s8 " #p0 "," #p0 ", q15 \n" /* p0 += filter1 */ \ - \ - "vmov.i8 q15, #0x04 \n" \ - "vqadd.s8 q15, q15, " #fl " \n" /* filter1 = filter + 4 */ \ - "vshr.s8 q15, q15, #3 \n" /* filter2 >> 3 */ \ - "vqsub.s8 " #q0 "," #q0 ", q15 \n" /* q0 -= filter2 */ - -// Applies filter on 2 pixels (p0 and q0) -#define DO_FILTER2(p1, p0, q0, q1, thresh) \ - NEEDS_FILTER(p1, p0, q0, q1, thresh, q9) /* filter mask in q9 */ \ - "vmov.i8 q10, #0x80 \n" /* sign bit */ \ - FLIP_SIGN_BIT4(p1, p0, q0, q1, q10) /* convert to signed value */ \ - GET_BASE_DELTA(p1, p0, q0, q1, q11) /* get filter level */ \ - "vand q9, q9, q11 \n" /* apply filter mask */ \ - DO_SIMPLE_FILTER(p0, q0, q9) /* apply filter */ \ - FLIP_SIGN_BIT2(p0, q0, q10) - -static void SimpleVFilter16(uint8_t* p, int stride, int thresh) { - __asm__ volatile ( - "sub %[p], %[p], %[stride], lsl #1 \n" // p -= 2 * stride - - "vld1.u8 {q1}, [%[p]], %[stride] \n" // p1 - "vld1.u8 {q2}, [%[p]], %[stride] \n" // p0 - "vld1.u8 {q3}, [%[p]], %[stride] \n" // q0 - "vld1.u8 {q12}, [%[p]] \n" // q1 - - DO_FILTER2(q1, q2, q3, q12, %[thresh]) - - "sub %[p], %[p], %[stride], lsl #1 \n" // p -= 2 * stride - - "vst1.u8 {q2}, [%[p]], %[stride] \n" // store op0 - "vst1.u8 {q3}, [%[p]] \n" // store oq0 - : [p] "+r"(p) - : [stride] "r"(stride), [thresh] "r"(thresh) - : "memory", QRegs - ); -} - -static void SimpleHFilter16(uint8_t* p, int stride, int thresh) { - __asm__ volatile ( - "sub r4, %[p], #2 \n" // base1 = p - 2 - "lsl r6, %[stride], #1 \n" // r6 = 2 * stride - "add r5, r4, %[stride] \n" // base2 = base1 + stride - - LOAD8x4(d2, d3, d4, d5, [r4], [r5], r6) - LOAD8x4(d24, d25, d26, d27, [r4], [r5], r6) - "vswp d3, d24 \n" // p1:q1 p0:q3 - "vswp d5, d26 \n" // q0:q2 q1:q4 - "vswp q2, q12 \n" // p1:q1 p0:q2 q0:q3 q1:q4 - - DO_FILTER2(q1, q2, q12, q13, %[thresh]) - - "sub %[p], %[p], #1 \n" // p - 1 - - "vswp d5, d24 \n" - STORE8x2(d4, d5, [%[p]], %[stride]) - STORE8x2(d24, d25, [%[p]], %[stride]) - - : [p] "+r"(p) - : [stride] "r"(stride), [thresh] "r"(thresh) - : "memory", "r4", "r5", "r6", QRegs - ); -} - -#endif // WEBP_USE_INTRINSICS - -static void SimpleVFilter16i(uint8_t* p, int stride, int thresh) { - uint32_t k; - for (k = 3; k != 0; --k) { - p += 4 * stride; - SimpleVFilter16(p, stride, thresh); - } -} - -static void SimpleHFilter16i(uint8_t* p, int stride, int thresh) { - uint32_t k; - for (k = 3; k != 0; --k) { - p += 4; - SimpleHFilter16(p, stride, thresh); - } -} - -//------------------------------------------------------------------------------ -// Complex In-loop filtering (Paragraph 15.3) - -static uint8x16_t NeedsHev(const uint8x16_t p1, const uint8x16_t p0, - const uint8x16_t q0, const uint8x16_t q1, - int hev_thresh) { - const uint8x16_t hev_thresh_v = vdupq_n_u8((uint8_t)hev_thresh); - const uint8x16_t a_p1_p0 = vabdq_u8(p1, p0); // abs(p1 - p0) - const uint8x16_t a_q1_q0 = vabdq_u8(q1, q0); // abs(q1 - q0) - const uint8x16_t mask1 = vcgtq_u8(a_p1_p0, hev_thresh_v); - const uint8x16_t mask2 = vcgtq_u8(a_q1_q0, hev_thresh_v); - const uint8x16_t mask = vorrq_u8(mask1, mask2); - return mask; -} - -static uint8x16_t NeedsFilter2(const uint8x16_t p3, const uint8x16_t p2, - const uint8x16_t p1, const uint8x16_t p0, - const uint8x16_t q0, const uint8x16_t q1, - const uint8x16_t q2, const uint8x16_t q3, - int ithresh, int thresh) { - const uint8x16_t ithresh_v = vdupq_n_u8((uint8_t)ithresh); - const uint8x16_t a_p3_p2 = vabdq_u8(p3, p2); // abs(p3 - p2) - const uint8x16_t a_p2_p1 = vabdq_u8(p2, p1); // abs(p2 - p1) - const uint8x16_t a_p1_p0 = vabdq_u8(p1, p0); // abs(p1 - p0) - const uint8x16_t a_q3_q2 = vabdq_u8(q3, q2); // abs(q3 - q2) - const uint8x16_t a_q2_q1 = vabdq_u8(q2, q1); // abs(q2 - q1) - const uint8x16_t a_q1_q0 = vabdq_u8(q1, q0); // abs(q1 - q0) - const uint8x16_t max1 = vmaxq_u8(a_p3_p2, a_p2_p1); - const uint8x16_t max2 = vmaxq_u8(a_p1_p0, a_q3_q2); - const uint8x16_t max3 = vmaxq_u8(a_q2_q1, a_q1_q0); - const uint8x16_t max12 = vmaxq_u8(max1, max2); - const uint8x16_t max123 = vmaxq_u8(max12, max3); - const uint8x16_t mask2 = vcgeq_u8(ithresh_v, max123); - const uint8x16_t mask1 = NeedsFilter(p1, p0, q0, q1, thresh); - const uint8x16_t mask = vandq_u8(mask1, mask2); - return mask; -} - -// 4-points filter - -static void ApplyFilter4( - const int8x16_t p1, const int8x16_t p0, - const int8x16_t q0, const int8x16_t q1, - const int8x16_t delta0, - uint8x16_t* const op1, uint8x16_t* const op0, - uint8x16_t* const oq0, uint8x16_t* const oq1) { - const int8x16_t kCst3 = vdupq_n_s8(0x03); - const int8x16_t kCst4 = vdupq_n_s8(0x04); - const int8x16_t delta1 = vqaddq_s8(delta0, kCst4); - const int8x16_t delta2 = vqaddq_s8(delta0, kCst3); - const int8x16_t a1 = vshrq_n_s8(delta1, 3); - const int8x16_t a2 = vshrq_n_s8(delta2, 3); - const int8x16_t a3 = vrshrq_n_s8(a1, 1); // a3 = (a1 + 1) >> 1 - *op0 = FlipSignBack(vqaddq_s8(p0, a2)); // clip(p0 + a2) - *oq0 = FlipSignBack(vqsubq_s8(q0, a1)); // clip(q0 - a1) - *op1 = FlipSignBack(vqaddq_s8(p1, a3)); // clip(p1 + a3) - *oq1 = FlipSignBack(vqsubq_s8(q1, a3)); // clip(q1 - a3) -} - -static void DoFilter4( - const uint8x16_t p1, const uint8x16_t p0, - const uint8x16_t q0, const uint8x16_t q1, - const uint8x16_t mask, const uint8x16_t hev_mask, - uint8x16_t* const op1, uint8x16_t* const op0, - uint8x16_t* const oq0, uint8x16_t* const oq1) { - // This is a fused version of DoFilter2() calling ApplyFilter2 directly - const int8x16_t p1s = FlipSign(p1); - int8x16_t p0s = FlipSign(p0); - int8x16_t q0s = FlipSign(q0); - const int8x16_t q1s = FlipSign(q1); - const uint8x16_t simple_lf_mask = vandq_u8(mask, hev_mask); - - // do_filter2 part (simple loopfilter on pixels with hev) - { - const int8x16_t delta = GetBaseDelta(p1s, p0s, q0s, q1s); - const int8x16_t simple_lf_delta = - vandq_s8(delta, vreinterpretq_s8_u8(simple_lf_mask)); - ApplyFilter2NoFlip(p0s, q0s, simple_lf_delta, &p0s, &q0s); - } - - // do_filter4 part (complex loopfilter on pixels without hev) - { - const int8x16_t delta0 = GetBaseDelta0(p0s, q0s); - // we use: (mask & hev_mask) ^ mask = mask & !hev_mask - const uint8x16_t complex_lf_mask = veorq_u8(simple_lf_mask, mask); - const int8x16_t complex_lf_delta = - vandq_s8(delta0, vreinterpretq_s8_u8(complex_lf_mask)); - ApplyFilter4(p1s, p0s, q0s, q1s, complex_lf_delta, op1, op0, oq0, oq1); - } -} - -// 6-points filter - -static void ApplyFilter6( - const int8x16_t p2, const int8x16_t p1, const int8x16_t p0, - const int8x16_t q0, const int8x16_t q1, const int8x16_t q2, - const int8x16_t delta, - uint8x16_t* const op2, uint8x16_t* const op1, uint8x16_t* const op0, - uint8x16_t* const oq0, uint8x16_t* const oq1, uint8x16_t* const oq2) { - const int16x8_t kCst63 = vdupq_n_s16(63); - const int8x8_t kCst27 = vdup_n_s8(27); - const int8x8_t kCst18 = vdup_n_s8(18); - const int8x8_t kCst9 = vdup_n_s8(9); - const int8x8_t delta_lo = vget_low_s8(delta); - const int8x8_t delta_hi = vget_high_s8(delta); - const int16x8_t s1_lo = vmlal_s8(kCst63, kCst27, delta_lo); // 63 + 27 * a - const int16x8_t s1_hi = vmlal_s8(kCst63, kCst27, delta_hi); // 63 + 27 * a - const int16x8_t s2_lo = vmlal_s8(kCst63, kCst18, delta_lo); // 63 + 18 * a - const int16x8_t s2_hi = vmlal_s8(kCst63, kCst18, delta_hi); // 63 + 18 * a - const int16x8_t s3_lo = vmlal_s8(kCst63, kCst9, delta_lo); // 63 + 9 * a - const int16x8_t s3_hi = vmlal_s8(kCst63, kCst9, delta_hi); // 63 + 9 * a - const int8x8_t a1_lo = vqshrn_n_s16(s1_lo, 7); - const int8x8_t a1_hi = vqshrn_n_s16(s1_hi, 7); - const int8x8_t a2_lo = vqshrn_n_s16(s2_lo, 7); - const int8x8_t a2_hi = vqshrn_n_s16(s2_hi, 7); - const int8x8_t a3_lo = vqshrn_n_s16(s3_lo, 7); - const int8x8_t a3_hi = vqshrn_n_s16(s3_hi, 7); - const int8x16_t a1 = vcombine_s8(a1_lo, a1_hi); - const int8x16_t a2 = vcombine_s8(a2_lo, a2_hi); - const int8x16_t a3 = vcombine_s8(a3_lo, a3_hi); - - *op0 = FlipSignBack(vqaddq_s8(p0, a1)); // clip(p0 + a1) - *oq0 = FlipSignBack(vqsubq_s8(q0, a1)); // clip(q0 - q1) - *oq1 = FlipSignBack(vqsubq_s8(q1, a2)); // clip(q1 - a2) - *op1 = FlipSignBack(vqaddq_s8(p1, a2)); // clip(p1 + a2) - *oq2 = FlipSignBack(vqsubq_s8(q2, a3)); // clip(q2 - a3) - *op2 = FlipSignBack(vqaddq_s8(p2, a3)); // clip(p2 + a3) -} - -static void DoFilter6( - const uint8x16_t p2, const uint8x16_t p1, const uint8x16_t p0, - const uint8x16_t q0, const uint8x16_t q1, const uint8x16_t q2, - const uint8x16_t mask, const uint8x16_t hev_mask, - uint8x16_t* const op2, uint8x16_t* const op1, uint8x16_t* const op0, - uint8x16_t* const oq0, uint8x16_t* const oq1, uint8x16_t* const oq2) { - // This is a fused version of DoFilter2() calling ApplyFilter2 directly - const int8x16_t p2s = FlipSign(p2); - const int8x16_t p1s = FlipSign(p1); - int8x16_t p0s = FlipSign(p0); - int8x16_t q0s = FlipSign(q0); - const int8x16_t q1s = FlipSign(q1); - const int8x16_t q2s = FlipSign(q2); - const uint8x16_t simple_lf_mask = vandq_u8(mask, hev_mask); - const int8x16_t delta0 = GetBaseDelta(p1s, p0s, q0s, q1s); - - // do_filter2 part (simple loopfilter on pixels with hev) - { - const int8x16_t simple_lf_delta = - vandq_s8(delta0, vreinterpretq_s8_u8(simple_lf_mask)); - ApplyFilter2NoFlip(p0s, q0s, simple_lf_delta, &p0s, &q0s); - } - - // do_filter6 part (complex loopfilter on pixels without hev) - { - // we use: (mask & hev_mask) ^ mask = mask & !hev_mask - const uint8x16_t complex_lf_mask = veorq_u8(simple_lf_mask, mask); - const int8x16_t complex_lf_delta = - vandq_s8(delta0, vreinterpretq_s8_u8(complex_lf_mask)); - ApplyFilter6(p2s, p1s, p0s, q0s, q1s, q2s, complex_lf_delta, - op2, op1, op0, oq0, oq1, oq2); - } -} - -// on macroblock edges - -static void VFilter16(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - uint8x16_t p3, p2, p1, p0, q0, q1, q2, q3; - Load16x8(p, stride, &p3, &p2, &p1, &p0, &q0, &q1, &q2, &q3); - { - const uint8x16_t mask = NeedsFilter2(p3, p2, p1, p0, q0, q1, q2, q3, - ithresh, thresh); - const uint8x16_t hev_mask = NeedsHev(p1, p0, q0, q1, hev_thresh); - uint8x16_t op2, op1, op0, oq0, oq1, oq2; - DoFilter6(p2, p1, p0, q0, q1, q2, mask, hev_mask, - &op2, &op1, &op0, &oq0, &oq1, &oq2); - Store16x2(op2, op1, p - 2 * stride, stride); - Store16x2(op0, oq0, p + 0 * stride, stride); - Store16x2(oq1, oq2, p + 2 * stride, stride); - } -} - -static void HFilter16(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - uint8x16_t p3, p2, p1, p0, q0, q1, q2, q3; - Load8x16(p, stride, &p3, &p2, &p1, &p0, &q0, &q1, &q2, &q3); - { - const uint8x16_t mask = NeedsFilter2(p3, p2, p1, p0, q0, q1, q2, q3, - ithresh, thresh); - const uint8x16_t hev_mask = NeedsHev(p1, p0, q0, q1, hev_thresh); - uint8x16_t op2, op1, op0, oq0, oq1, oq2; - DoFilter6(p2, p1, p0, q0, q1, q2, mask, hev_mask, - &op2, &op1, &op0, &oq0, &oq1, &oq2); - Store2x16(op2, op1, p - 2, stride); - Store2x16(op0, oq0, p + 0, stride); - Store2x16(oq1, oq2, p + 2, stride); - } -} - -// on three inner edges -static void VFilter16i(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - uint32_t k; - uint8x16_t p3, p2, p1, p0; - Load16x4(p + 2 * stride, stride, &p3, &p2, &p1, &p0); - for (k = 3; k != 0; --k) { - uint8x16_t q0, q1, q2, q3; - p += 4 * stride; - Load16x4(p + 2 * stride, stride, &q0, &q1, &q2, &q3); - { - const uint8x16_t mask = - NeedsFilter2(p3, p2, p1, p0, q0, q1, q2, q3, ithresh, thresh); - const uint8x16_t hev_mask = NeedsHev(p1, p0, q0, q1, hev_thresh); - // p3 and p2 are not just temporary variables here: they will be - // re-used for next span. And q2/q3 will become p1/p0 accordingly. - DoFilter4(p1, p0, q0, q1, mask, hev_mask, &p1, &p0, &p3, &p2); - Store16x4(p1, p0, p3, p2, p, stride); - p1 = q2; - p0 = q3; - } - } -} - -#if !defined(WORK_AROUND_GCC) -static void HFilter16i(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - uint32_t k; - uint8x16_t p3, p2, p1, p0; - Load4x16(p + 2, stride, &p3, &p2, &p1, &p0); - for (k = 3; k != 0; --k) { - uint8x16_t q0, q1, q2, q3; - p += 4; - Load4x16(p + 2, stride, &q0, &q1, &q2, &q3); - { - const uint8x16_t mask = - NeedsFilter2(p3, p2, p1, p0, q0, q1, q2, q3, ithresh, thresh); - const uint8x16_t hev_mask = NeedsHev(p1, p0, q0, q1, hev_thresh); - DoFilter4(p1, p0, q0, q1, mask, hev_mask, &p1, &p0, &p3, &p2); - Store4x16(p1, p0, p3, p2, p, stride); - p1 = q2; - p0 = q3; - } - } -} -#endif // !WORK_AROUND_GCC - -// 8-pixels wide variant, for chroma filtering -static void VFilter8(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - uint8x16_t p3, p2, p1, p0, q0, q1, q2, q3; - Load8x8x2(u, v, stride, &p3, &p2, &p1, &p0, &q0, &q1, &q2, &q3); - { - const uint8x16_t mask = NeedsFilter2(p3, p2, p1, p0, q0, q1, q2, q3, - ithresh, thresh); - const uint8x16_t hev_mask = NeedsHev(p1, p0, q0, q1, hev_thresh); - uint8x16_t op2, op1, op0, oq0, oq1, oq2; - DoFilter6(p2, p1, p0, q0, q1, q2, mask, hev_mask, - &op2, &op1, &op0, &oq0, &oq1, &oq2); - Store8x2x2(op2, op1, u - 2 * stride, v - 2 * stride, stride); - Store8x2x2(op0, oq0, u + 0 * stride, v + 0 * stride, stride); - Store8x2x2(oq1, oq2, u + 2 * stride, v + 2 * stride, stride); - } -} -static void VFilter8i(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - uint8x16_t p3, p2, p1, p0, q0, q1, q2, q3; - u += 4 * stride; - v += 4 * stride; - Load8x8x2(u, v, stride, &p3, &p2, &p1, &p0, &q0, &q1, &q2, &q3); - { - const uint8x16_t mask = NeedsFilter2(p3, p2, p1, p0, q0, q1, q2, q3, - ithresh, thresh); - const uint8x16_t hev_mask = NeedsHev(p1, p0, q0, q1, hev_thresh); - uint8x16_t op1, op0, oq0, oq1; - DoFilter4(p1, p0, q0, q1, mask, hev_mask, &op1, &op0, &oq0, &oq1); - Store8x4x2(op1, op0, oq0, oq1, u, v, stride); - } -} - -#if !defined(WORK_AROUND_GCC) -static void HFilter8(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - uint8x16_t p3, p2, p1, p0, q0, q1, q2, q3; - Load8x8x2T(u, v, stride, &p3, &p2, &p1, &p0, &q0, &q1, &q2, &q3); - { - const uint8x16_t mask = NeedsFilter2(p3, p2, p1, p0, q0, q1, q2, q3, - ithresh, thresh); - const uint8x16_t hev_mask = NeedsHev(p1, p0, q0, q1, hev_thresh); - uint8x16_t op2, op1, op0, oq0, oq1, oq2; - DoFilter6(p2, p1, p0, q0, q1, q2, mask, hev_mask, - &op2, &op1, &op0, &oq0, &oq1, &oq2); - Store6x8x2(op2, op1, op0, oq0, oq1, oq2, u, v, stride); - } -} - -static void HFilter8i(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - uint8x16_t p3, p2, p1, p0, q0, q1, q2, q3; - u += 4; - v += 4; - Load8x8x2T(u, v, stride, &p3, &p2, &p1, &p0, &q0, &q1, &q2, &q3); - { - const uint8x16_t mask = NeedsFilter2(p3, p2, p1, p0, q0, q1, q2, q3, - ithresh, thresh); - const uint8x16_t hev_mask = NeedsHev(p1, p0, q0, q1, hev_thresh); - uint8x16_t op1, op0, oq0, oq1; - DoFilter4(p1, p0, q0, q1, mask, hev_mask, &op1, &op0, &oq0, &oq1); - Store4x8x2(op1, op0, oq0, oq1, u, v, stride); - } -} -#endif // !WORK_AROUND_GCC - -//----------------------------------------------------------------------------- -// Inverse transforms (Paragraph 14.4) - -// Technically these are unsigned but vqdmulh is only available in signed. -// vqdmulh returns high half (effectively >> 16) but also doubles the value, -// changing the >> 16 to >> 15 and requiring an additional >> 1. -// We use this to our advantage with kC2. The canonical value is 35468. -// However, the high bit is set so treating it as signed will give incorrect -// results. We avoid this by down shifting by 1 here to clear the highest bit. -// Combined with the doubling effect of vqdmulh we get >> 16. -// This can not be applied to kC1 because the lowest bit is set. Down shifting -// the constant would reduce precision. - -// libwebp uses a trick to avoid some extra addition that libvpx does. -// Instead of: -// temp2 = ip[12] + ((ip[12] * cospi8sqrt2minus1) >> 16); -// libwebp adds 1 << 16 to cospi8sqrt2minus1 (kC1). However, this causes the -// same issue with kC1 and vqdmulh that we work around by down shifting kC2 - -static const int16_t kC1 = 20091; -static const int16_t kC2 = 17734; // half of kC2, actually. See comment above. - -#if defined(WEBP_USE_INTRINSICS) -static WEBP_INLINE void Transpose8x2(const int16x8_t in0, const int16x8_t in1, - int16x8x2_t* const out) { - // a0 a1 a2 a3 | b0 b1 b2 b3 => a0 b0 c0 d0 | a1 b1 c1 d1 - // c0 c1 c2 c3 | d0 d1 d2 d3 a2 b2 c2 d2 | a3 b3 c3 d3 - const int16x8x2_t tmp0 = vzipq_s16(in0, in1); // a0 c0 a1 c1 a2 c2 ... - // b0 d0 b1 d1 b2 d2 ... - *out = vzipq_s16(tmp0.val[0], tmp0.val[1]); -} - -static WEBP_INLINE void TransformPass(int16x8x2_t* const rows) { - // {rows} = in0 | in4 - // in8 | in12 - // B1 = in4 | in12 - const int16x8_t B1 = - vcombine_s16(vget_high_s16(rows->val[0]), vget_high_s16(rows->val[1])); - // C0 = kC1 * in4 | kC1 * in12 - // C1 = kC2 * in4 | kC2 * in12 - const int16x8_t C0 = vsraq_n_s16(B1, vqdmulhq_n_s16(B1, kC1), 1); - const int16x8_t C1 = vqdmulhq_n_s16(B1, kC2); - const int16x4_t a = vqadd_s16(vget_low_s16(rows->val[0]), - vget_low_s16(rows->val[1])); // in0 + in8 - const int16x4_t b = vqsub_s16(vget_low_s16(rows->val[0]), - vget_low_s16(rows->val[1])); // in0 - in8 - // c = kC2 * in4 - kC1 * in12 - // d = kC1 * in4 + kC2 * in12 - const int16x4_t c = vqsub_s16(vget_low_s16(C1), vget_high_s16(C0)); - const int16x4_t d = vqadd_s16(vget_low_s16(C0), vget_high_s16(C1)); - const int16x8_t D0 = vcombine_s16(a, b); // D0 = a | b - const int16x8_t D1 = vcombine_s16(d, c); // D1 = d | c - const int16x8_t E0 = vqaddq_s16(D0, D1); // a+d | b+c - const int16x8_t E_tmp = vqsubq_s16(D0, D1); // a-d | b-c - const int16x8_t E1 = vcombine_s16(vget_high_s16(E_tmp), vget_low_s16(E_tmp)); - Transpose8x2(E0, E1, rows); -} - -static void TransformOne(const int16_t* in, uint8_t* dst) { - int16x8x2_t rows; - INIT_VECTOR2(rows, vld1q_s16(in + 0), vld1q_s16(in + 8)); - TransformPass(&rows); - TransformPass(&rows); - Add4x4(rows.val[0], rows.val[1], dst); -} - -#else - -static void TransformOne(const int16_t* in, uint8_t* dst) { - const int kBPS = BPS; - // kC1, kC2. Padded because vld1.16 loads 8 bytes - const int16_t constants[4] = { kC1, kC2, 0, 0 }; - /* Adapted from libvpx: vp8/common/arm/neon/shortidct4x4llm_neon.asm */ - __asm__ volatile ( - "vld1.16 {q1, q2}, [%[in]] \n" - "vld1.16 {d0}, [%[constants]] \n" - - /* d2: in[0] - * d3: in[8] - * d4: in[4] - * d5: in[12] - */ - "vswp d3, d4 \n" - - /* q8 = {in[4], in[12]} * kC1 * 2 >> 16 - * q9 = {in[4], in[12]} * kC2 >> 16 - */ - "vqdmulh.s16 q8, q2, d0[0] \n" - "vqdmulh.s16 q9, q2, d0[1] \n" - - /* d22 = a = in[0] + in[8] - * d23 = b = in[0] - in[8] - */ - "vqadd.s16 d22, d2, d3 \n" - "vqsub.s16 d23, d2, d3 \n" - - /* The multiplication should be x * kC1 >> 16 - * However, with vqdmulh we get x * kC1 * 2 >> 16 - * (multiply, double, return high half) - * We avoided this in kC2 by pre-shifting the constant. - * q8 = in[4]/[12] * kC1 >> 16 - */ - "vshr.s16 q8, q8, #1 \n" - - /* Add {in[4], in[12]} back after the multiplication. This is handled by - * adding 1 << 16 to kC1 in the libwebp C code. - */ - "vqadd.s16 q8, q2, q8 \n" - - /* d20 = c = in[4]*kC2 - in[12]*kC1 - * d21 = d = in[4]*kC1 + in[12]*kC2 - */ - "vqsub.s16 d20, d18, d17 \n" - "vqadd.s16 d21, d19, d16 \n" - - /* d2 = tmp[0] = a + d - * d3 = tmp[1] = b + c - * d4 = tmp[2] = b - c - * d5 = tmp[3] = a - d - */ - "vqadd.s16 d2, d22, d21 \n" - "vqadd.s16 d3, d23, d20 \n" - "vqsub.s16 d4, d23, d20 \n" - "vqsub.s16 d5, d22, d21 \n" - - "vzip.16 q1, q2 \n" - "vzip.16 q1, q2 \n" - - "vswp d3, d4 \n" - - /* q8 = {tmp[4], tmp[12]} * kC1 * 2 >> 16 - * q9 = {tmp[4], tmp[12]} * kC2 >> 16 - */ - "vqdmulh.s16 q8, q2, d0[0] \n" - "vqdmulh.s16 q9, q2, d0[1] \n" - - /* d22 = a = tmp[0] + tmp[8] - * d23 = b = tmp[0] - tmp[8] - */ - "vqadd.s16 d22, d2, d3 \n" - "vqsub.s16 d23, d2, d3 \n" - - /* See long winded explanations prior */ - "vshr.s16 q8, q8, #1 \n" - "vqadd.s16 q8, q2, q8 \n" - - /* d20 = c = in[4]*kC2 - in[12]*kC1 - * d21 = d = in[4]*kC1 + in[12]*kC2 - */ - "vqsub.s16 d20, d18, d17 \n" - "vqadd.s16 d21, d19, d16 \n" - - /* d2 = tmp[0] = a + d - * d3 = tmp[1] = b + c - * d4 = tmp[2] = b - c - * d5 = tmp[3] = a - d - */ - "vqadd.s16 d2, d22, d21 \n" - "vqadd.s16 d3, d23, d20 \n" - "vqsub.s16 d4, d23, d20 \n" - "vqsub.s16 d5, d22, d21 \n" - - "vld1.32 d6[0], [%[dst]], %[kBPS] \n" - "vld1.32 d6[1], [%[dst]], %[kBPS] \n" - "vld1.32 d7[0], [%[dst]], %[kBPS] \n" - "vld1.32 d7[1], [%[dst]], %[kBPS] \n" - - "sub %[dst], %[dst], %[kBPS], lsl #2 \n" - - /* (val) + 4 >> 3 */ - "vrshr.s16 d2, d2, #3 \n" - "vrshr.s16 d3, d3, #3 \n" - "vrshr.s16 d4, d4, #3 \n" - "vrshr.s16 d5, d5, #3 \n" - - "vzip.16 q1, q2 \n" - "vzip.16 q1, q2 \n" - - /* Must accumulate before saturating */ - "vmovl.u8 q8, d6 \n" - "vmovl.u8 q9, d7 \n" - - "vqadd.s16 q1, q1, q8 \n" - "vqadd.s16 q2, q2, q9 \n" - - "vqmovun.s16 d0, q1 \n" - "vqmovun.s16 d1, q2 \n" - - "vst1.32 d0[0], [%[dst]], %[kBPS] \n" - "vst1.32 d0[1], [%[dst]], %[kBPS] \n" - "vst1.32 d1[0], [%[dst]], %[kBPS] \n" - "vst1.32 d1[1], [%[dst]] \n" - - : [in] "+r"(in), [dst] "+r"(dst) /* modified registers */ - : [kBPS] "r"(kBPS), [constants] "r"(constants) /* constants */ - : "memory", "q0", "q1", "q2", "q8", "q9", "q10", "q11" /* clobbered */ - ); -} - -#endif // WEBP_USE_INTRINSICS - -static void TransformTwo(const int16_t* in, uint8_t* dst, int do_two) { - TransformOne(in, dst); - if (do_two) { - TransformOne(in + 16, dst + 4); - } -} - -static void TransformDC(const int16_t* in, uint8_t* dst) { - const int16x8_t DC = vdupq_n_s16(in[0]); - Add4x4(DC, DC, dst); -} - -//------------------------------------------------------------------------------ - -#define STORE_WHT(dst, col, rows) do { \ - *dst = vgetq_lane_s32(rows.val[0], col); (dst) += 16; \ - *dst = vgetq_lane_s32(rows.val[1], col); (dst) += 16; \ - *dst = vgetq_lane_s32(rows.val[2], col); (dst) += 16; \ - *dst = vgetq_lane_s32(rows.val[3], col); (dst) += 16; \ -} while (0) - -static void TransformWHT(const int16_t* in, int16_t* out) { - int32x4x4_t tmp; - - { - // Load the source. - const int16x4_t in00_03 = vld1_s16(in + 0); - const int16x4_t in04_07 = vld1_s16(in + 4); - const int16x4_t in08_11 = vld1_s16(in + 8); - const int16x4_t in12_15 = vld1_s16(in + 12); - const int32x4_t a0 = vaddl_s16(in00_03, in12_15); // in[0..3] + in[12..15] - const int32x4_t a1 = vaddl_s16(in04_07, in08_11); // in[4..7] + in[8..11] - const int32x4_t a2 = vsubl_s16(in04_07, in08_11); // in[4..7] - in[8..11] - const int32x4_t a3 = vsubl_s16(in00_03, in12_15); // in[0..3] - in[12..15] - tmp.val[0] = vaddq_s32(a0, a1); - tmp.val[1] = vaddq_s32(a3, a2); - tmp.val[2] = vsubq_s32(a0, a1); - tmp.val[3] = vsubq_s32(a3, a2); - // Arrange the temporary results column-wise. - tmp = Transpose4x4(tmp); - } - - { - const int32x4_t kCst3 = vdupq_n_s32(3); - const int32x4_t dc = vaddq_s32(tmp.val[0], kCst3); // add rounder - const int32x4_t a0 = vaddq_s32(dc, tmp.val[3]); - const int32x4_t a1 = vaddq_s32(tmp.val[1], tmp.val[2]); - const int32x4_t a2 = vsubq_s32(tmp.val[1], tmp.val[2]); - const int32x4_t a3 = vsubq_s32(dc, tmp.val[3]); - - tmp.val[0] = vaddq_s32(a0, a1); - tmp.val[1] = vaddq_s32(a3, a2); - tmp.val[2] = vsubq_s32(a0, a1); - tmp.val[3] = vsubq_s32(a3, a2); - - // right shift the results by 3. - tmp.val[0] = vshrq_n_s32(tmp.val[0], 3); - tmp.val[1] = vshrq_n_s32(tmp.val[1], 3); - tmp.val[2] = vshrq_n_s32(tmp.val[2], 3); - tmp.val[3] = vshrq_n_s32(tmp.val[3], 3); - - STORE_WHT(out, 0, tmp); - STORE_WHT(out, 1, tmp); - STORE_WHT(out, 2, tmp); - STORE_WHT(out, 3, tmp); - } -} - -#undef STORE_WHT - -//------------------------------------------------------------------------------ - -#define MUL(a, b) (((a) * (b)) >> 16) -static void TransformAC3(const int16_t* in, uint8_t* dst) { - static const int kC1_full = 20091 + (1 << 16); - static const int kC2_full = 35468; - const int16x4_t A = vld1_dup_s16(in); - const int16x4_t c4 = vdup_n_s16(MUL(in[4], kC2_full)); - const int16x4_t d4 = vdup_n_s16(MUL(in[4], kC1_full)); - const int c1 = MUL(in[1], kC2_full); - const int d1 = MUL(in[1], kC1_full); - const uint64_t cd = (uint64_t)( d1 & 0xffff) << 0 | - (uint64_t)( c1 & 0xffff) << 16 | - (uint64_t)(-c1 & 0xffff) << 32 | - (uint64_t)(-d1 & 0xffff) << 48; - const int16x4_t CD = vcreate_s16(cd); - const int16x4_t B = vqadd_s16(A, CD); - const int16x8_t m0_m1 = vcombine_s16(vqadd_s16(B, d4), vqadd_s16(B, c4)); - const int16x8_t m2_m3 = vcombine_s16(vqsub_s16(B, c4), vqsub_s16(B, d4)); - Add4x4(m0_m1, m2_m3, dst); -} -#undef MUL - -//------------------------------------------------------------------------------ -// 4x4 - -static void DC4(uint8_t* dst) { // DC - const uint8x8_t A = vld1_u8(dst - BPS); // top row - const uint16x4_t p0 = vpaddl_u8(A); // cascading summation of the top - const uint16x4_t p1 = vpadd_u16(p0, p0); - const uint16x8_t L0 = vmovl_u8(vld1_u8(dst + 0 * BPS - 1)); - const uint16x8_t L1 = vmovl_u8(vld1_u8(dst + 1 * BPS - 1)); - const uint16x8_t L2 = vmovl_u8(vld1_u8(dst + 2 * BPS - 1)); - const uint16x8_t L3 = vmovl_u8(vld1_u8(dst + 3 * BPS - 1)); - const uint16x8_t s0 = vaddq_u16(L0, L1); - const uint16x8_t s1 = vaddq_u16(L2, L3); - const uint16x8_t s01 = vaddq_u16(s0, s1); - const uint16x8_t sum = vaddq_u16(s01, vcombine_u16(p1, p1)); - const uint8x8_t dc0 = vrshrn_n_u16(sum, 3); // (sum + 4) >> 3 - const uint8x8_t dc = vdup_lane_u8(dc0, 0); - int i; - for (i = 0; i < 4; ++i) { - vst1_lane_u32((uint32_t*)(dst + i * BPS), vreinterpret_u32_u8(dc), 0); - } -} - -// TrueMotion (4x4 + 8x8) -static WEBP_INLINE void TrueMotion(uint8_t* dst, int size) { - const uint8x8_t TL = vld1_dup_u8(dst - BPS - 1); // top-left pixel 'A[-1]' - const uint8x8_t T = vld1_u8(dst - BPS); // top row 'A[0..3]' - const int16x8_t d = vreinterpretq_s16_u16(vsubl_u8(T, TL)); // A[c] - A[-1] - int y; - for (y = 0; y < size; y += 4) { - // left edge - const int16x8_t L0 = ConvertU8ToS16(vld1_dup_u8(dst + 0 * BPS - 1)); - const int16x8_t L1 = ConvertU8ToS16(vld1_dup_u8(dst + 1 * BPS - 1)); - const int16x8_t L2 = ConvertU8ToS16(vld1_dup_u8(dst + 2 * BPS - 1)); - const int16x8_t L3 = ConvertU8ToS16(vld1_dup_u8(dst + 3 * BPS - 1)); - const int16x8_t r0 = vaddq_s16(L0, d); // L[r] + A[c] - A[-1] - const int16x8_t r1 = vaddq_s16(L1, d); - const int16x8_t r2 = vaddq_s16(L2, d); - const int16x8_t r3 = vaddq_s16(L3, d); - // Saturate and store the result. - const uint32x2_t r0_u32 = vreinterpret_u32_u8(vqmovun_s16(r0)); - const uint32x2_t r1_u32 = vreinterpret_u32_u8(vqmovun_s16(r1)); - const uint32x2_t r2_u32 = vreinterpret_u32_u8(vqmovun_s16(r2)); - const uint32x2_t r3_u32 = vreinterpret_u32_u8(vqmovun_s16(r3)); - if (size == 4) { - vst1_lane_u32((uint32_t*)(dst + 0 * BPS), r0_u32, 0); - vst1_lane_u32((uint32_t*)(dst + 1 * BPS), r1_u32, 0); - vst1_lane_u32((uint32_t*)(dst + 2 * BPS), r2_u32, 0); - vst1_lane_u32((uint32_t*)(dst + 3 * BPS), r3_u32, 0); - } else { - vst1_u32((uint32_t*)(dst + 0 * BPS), r0_u32); - vst1_u32((uint32_t*)(dst + 1 * BPS), r1_u32); - vst1_u32((uint32_t*)(dst + 2 * BPS), r2_u32); - vst1_u32((uint32_t*)(dst + 3 * BPS), r3_u32); - } - dst += 4 * BPS; - } -} - -static void TM4(uint8_t* dst) { TrueMotion(dst, 4); } - -static void VE4(uint8_t* dst) { // vertical - // NB: avoid vld1_u64 here as an alignment hint may be added -> SIGBUS. - const uint64x1_t A0 = vreinterpret_u64_u8(vld1_u8(dst - BPS - 1)); // top row - const uint64x1_t A1 = vshr_n_u64(A0, 8); - const uint64x1_t A2 = vshr_n_u64(A0, 16); - const uint8x8_t ABCDEFGH = vreinterpret_u8_u64(A0); - const uint8x8_t BCDEFGH0 = vreinterpret_u8_u64(A1); - const uint8x8_t CDEFGH00 = vreinterpret_u8_u64(A2); - const uint8x8_t b = vhadd_u8(ABCDEFGH, CDEFGH00); - const uint8x8_t avg = vrhadd_u8(b, BCDEFGH0); - int i; - for (i = 0; i < 4; ++i) { - vst1_lane_u32((uint32_t*)(dst + i * BPS), vreinterpret_u32_u8(avg), 0); - } -} - -static void RD4(uint8_t* dst) { // Down-right - const uint8x8_t XABCD_u8 = vld1_u8(dst - BPS - 1); - const uint64x1_t XABCD = vreinterpret_u64_u8(XABCD_u8); - const uint64x1_t ____XABC = vshl_n_u64(XABCD, 32); - const uint32_t I = dst[-1 + 0 * BPS]; - const uint32_t J = dst[-1 + 1 * BPS]; - const uint32_t K = dst[-1 + 2 * BPS]; - const uint32_t L = dst[-1 + 3 * BPS]; - const uint64x1_t LKJI____ = vcreate_u64(L | (K << 8) | (J << 16) | (I << 24)); - const uint64x1_t LKJIXABC = vorr_u64(LKJI____, ____XABC); - const uint8x8_t KJIXABC_ = vreinterpret_u8_u64(vshr_n_u64(LKJIXABC, 8)); - const uint8x8_t JIXABC__ = vreinterpret_u8_u64(vshr_n_u64(LKJIXABC, 16)); - const uint8_t D = vget_lane_u8(XABCD_u8, 4); - const uint8x8_t JIXABCD_ = vset_lane_u8(D, JIXABC__, 6); - const uint8x8_t LKJIXABC_u8 = vreinterpret_u8_u64(LKJIXABC); - const uint8x8_t avg1 = vhadd_u8(JIXABCD_, LKJIXABC_u8); - const uint8x8_t avg2 = vrhadd_u8(avg1, KJIXABC_); - const uint64x1_t avg2_u64 = vreinterpret_u64_u8(avg2); - const uint32x2_t r3 = vreinterpret_u32_u8(avg2); - const uint32x2_t r2 = vreinterpret_u32_u64(vshr_n_u64(avg2_u64, 8)); - const uint32x2_t r1 = vreinterpret_u32_u64(vshr_n_u64(avg2_u64, 16)); - const uint32x2_t r0 = vreinterpret_u32_u64(vshr_n_u64(avg2_u64, 24)); - vst1_lane_u32((uint32_t*)(dst + 0 * BPS), r0, 0); - vst1_lane_u32((uint32_t*)(dst + 1 * BPS), r1, 0); - vst1_lane_u32((uint32_t*)(dst + 2 * BPS), r2, 0); - vst1_lane_u32((uint32_t*)(dst + 3 * BPS), r3, 0); -} - -static void LD4(uint8_t* dst) { // Down-left - // Note using the same shift trick as VE4() is slower here. - const uint8x8_t ABCDEFGH = vld1_u8(dst - BPS + 0); - const uint8x8_t BCDEFGH0 = vld1_u8(dst - BPS + 1); - const uint8x8_t CDEFGH00 = vld1_u8(dst - BPS + 2); - const uint8x8_t CDEFGHH0 = vset_lane_u8(dst[-BPS + 7], CDEFGH00, 6); - const uint8x8_t avg1 = vhadd_u8(ABCDEFGH, CDEFGHH0); - const uint8x8_t avg2 = vrhadd_u8(avg1, BCDEFGH0); - const uint64x1_t avg2_u64 = vreinterpret_u64_u8(avg2); - const uint32x2_t r0 = vreinterpret_u32_u8(avg2); - const uint32x2_t r1 = vreinterpret_u32_u64(vshr_n_u64(avg2_u64, 8)); - const uint32x2_t r2 = vreinterpret_u32_u64(vshr_n_u64(avg2_u64, 16)); - const uint32x2_t r3 = vreinterpret_u32_u64(vshr_n_u64(avg2_u64, 24)); - vst1_lane_u32((uint32_t*)(dst + 0 * BPS), r0, 0); - vst1_lane_u32((uint32_t*)(dst + 1 * BPS), r1, 0); - vst1_lane_u32((uint32_t*)(dst + 2 * BPS), r2, 0); - vst1_lane_u32((uint32_t*)(dst + 3 * BPS), r3, 0); -} - -//------------------------------------------------------------------------------ -// Chroma - -static void VE8uv(uint8_t* dst) { // vertical - const uint8x8_t top = vld1_u8(dst - BPS); - int j; - for (j = 0; j < 8; ++j) { - vst1_u8(dst + j * BPS, top); - } -} - -static void HE8uv(uint8_t* dst) { // horizontal - int j; - for (j = 0; j < 8; ++j) { - const uint8x8_t left = vld1_dup_u8(dst - 1); - vst1_u8(dst, left); - dst += BPS; - } -} - -static WEBP_INLINE void DC8(uint8_t* dst, int do_top, int do_left) { - uint16x8_t sum_top; - uint16x8_t sum_left; - uint8x8_t dc0; - - if (do_top) { - const uint8x8_t A = vld1_u8(dst - BPS); // top row - const uint16x4_t p0 = vpaddl_u8(A); // cascading summation of the top - const uint16x4_t p1 = vpadd_u16(p0, p0); - const uint16x4_t p2 = vpadd_u16(p1, p1); - sum_top = vcombine_u16(p2, p2); - } - - if (do_left) { - const uint16x8_t L0 = vmovl_u8(vld1_u8(dst + 0 * BPS - 1)); - const uint16x8_t L1 = vmovl_u8(vld1_u8(dst + 1 * BPS - 1)); - const uint16x8_t L2 = vmovl_u8(vld1_u8(dst + 2 * BPS - 1)); - const uint16x8_t L3 = vmovl_u8(vld1_u8(dst + 3 * BPS - 1)); - const uint16x8_t L4 = vmovl_u8(vld1_u8(dst + 4 * BPS - 1)); - const uint16x8_t L5 = vmovl_u8(vld1_u8(dst + 5 * BPS - 1)); - const uint16x8_t L6 = vmovl_u8(vld1_u8(dst + 6 * BPS - 1)); - const uint16x8_t L7 = vmovl_u8(vld1_u8(dst + 7 * BPS - 1)); - const uint16x8_t s0 = vaddq_u16(L0, L1); - const uint16x8_t s1 = vaddq_u16(L2, L3); - const uint16x8_t s2 = vaddq_u16(L4, L5); - const uint16x8_t s3 = vaddq_u16(L6, L7); - const uint16x8_t s01 = vaddq_u16(s0, s1); - const uint16x8_t s23 = vaddq_u16(s2, s3); - sum_left = vaddq_u16(s01, s23); - } - - if (do_top && do_left) { - const uint16x8_t sum = vaddq_u16(sum_left, sum_top); - dc0 = vrshrn_n_u16(sum, 4); - } else if (do_top) { - dc0 = vrshrn_n_u16(sum_top, 3); - } else if (do_left) { - dc0 = vrshrn_n_u16(sum_left, 3); - } else { - dc0 = vdup_n_u8(0x80); - } - - { - const uint8x8_t dc = vdup_lane_u8(dc0, 0); - int i; - for (i = 0; i < 8; ++i) { - vst1_u32((uint32_t*)(dst + i * BPS), vreinterpret_u32_u8(dc)); - } - } -} - -static void DC8uv(uint8_t* dst) { DC8(dst, 1, 1); } -static void DC8uvNoTop(uint8_t* dst) { DC8(dst, 0, 1); } -static void DC8uvNoLeft(uint8_t* dst) { DC8(dst, 1, 0); } -static void DC8uvNoTopLeft(uint8_t* dst) { DC8(dst, 0, 0); } - -static void TM8uv(uint8_t* dst) { TrueMotion(dst, 8); } - -//------------------------------------------------------------------------------ -// 16x16 - -static void VE16(uint8_t* dst) { // vertical - const uint8x16_t top = vld1q_u8(dst - BPS); - int j; - for (j = 0; j < 16; ++j) { - vst1q_u8(dst + j * BPS, top); - } -} - -static void HE16(uint8_t* dst) { // horizontal - int j; - for (j = 0; j < 16; ++j) { - const uint8x16_t left = vld1q_dup_u8(dst - 1); - vst1q_u8(dst, left); - dst += BPS; - } -} - -static WEBP_INLINE void DC16(uint8_t* dst, int do_top, int do_left) { - uint16x8_t sum_top; - uint16x8_t sum_left; - uint8x8_t dc0; - - if (do_top) { - const uint8x16_t A = vld1q_u8(dst - BPS); // top row - const uint16x8_t p0 = vpaddlq_u8(A); // cascading summation of the top - const uint16x4_t p1 = vadd_u16(vget_low_u16(p0), vget_high_u16(p0)); - const uint16x4_t p2 = vpadd_u16(p1, p1); - const uint16x4_t p3 = vpadd_u16(p2, p2); - sum_top = vcombine_u16(p3, p3); - } - - if (do_left) { - int i; - sum_left = vdupq_n_u16(0); - for (i = 0; i < 16; i += 8) { - const uint16x8_t L0 = vmovl_u8(vld1_u8(dst + (i + 0) * BPS - 1)); - const uint16x8_t L1 = vmovl_u8(vld1_u8(dst + (i + 1) * BPS - 1)); - const uint16x8_t L2 = vmovl_u8(vld1_u8(dst + (i + 2) * BPS - 1)); - const uint16x8_t L3 = vmovl_u8(vld1_u8(dst + (i + 3) * BPS - 1)); - const uint16x8_t L4 = vmovl_u8(vld1_u8(dst + (i + 4) * BPS - 1)); - const uint16x8_t L5 = vmovl_u8(vld1_u8(dst + (i + 5) * BPS - 1)); - const uint16x8_t L6 = vmovl_u8(vld1_u8(dst + (i + 6) * BPS - 1)); - const uint16x8_t L7 = vmovl_u8(vld1_u8(dst + (i + 7) * BPS - 1)); - const uint16x8_t s0 = vaddq_u16(L0, L1); - const uint16x8_t s1 = vaddq_u16(L2, L3); - const uint16x8_t s2 = vaddq_u16(L4, L5); - const uint16x8_t s3 = vaddq_u16(L6, L7); - const uint16x8_t s01 = vaddq_u16(s0, s1); - const uint16x8_t s23 = vaddq_u16(s2, s3); - const uint16x8_t sum = vaddq_u16(s01, s23); - sum_left = vaddq_u16(sum_left, sum); - } - } - - if (do_top && do_left) { - const uint16x8_t sum = vaddq_u16(sum_left, sum_top); - dc0 = vrshrn_n_u16(sum, 5); - } else if (do_top) { - dc0 = vrshrn_n_u16(sum_top, 4); - } else if (do_left) { - dc0 = vrshrn_n_u16(sum_left, 4); - } else { - dc0 = vdup_n_u8(0x80); - } - - { - const uint8x16_t dc = vdupq_lane_u8(dc0, 0); - int i; - for (i = 0; i < 16; ++i) { - vst1q_u8(dst + i * BPS, dc); - } - } -} - -static void DC16TopLeft(uint8_t* dst) { DC16(dst, 1, 1); } -static void DC16NoTop(uint8_t* dst) { DC16(dst, 0, 1); } -static void DC16NoLeft(uint8_t* dst) { DC16(dst, 1, 0); } -static void DC16NoTopLeft(uint8_t* dst) { DC16(dst, 0, 0); } - -static void TM16(uint8_t* dst) { - const uint8x8_t TL = vld1_dup_u8(dst - BPS - 1); // top-left pixel 'A[-1]' - const uint8x16_t T = vld1q_u8(dst - BPS); // top row 'A[0..15]' - // A[c] - A[-1] - const int16x8_t d_lo = vreinterpretq_s16_u16(vsubl_u8(vget_low_u8(T), TL)); - const int16x8_t d_hi = vreinterpretq_s16_u16(vsubl_u8(vget_high_u8(T), TL)); - int y; - for (y = 0; y < 16; y += 4) { - // left edge - const int16x8_t L0 = ConvertU8ToS16(vld1_dup_u8(dst + 0 * BPS - 1)); - const int16x8_t L1 = ConvertU8ToS16(vld1_dup_u8(dst + 1 * BPS - 1)); - const int16x8_t L2 = ConvertU8ToS16(vld1_dup_u8(dst + 2 * BPS - 1)); - const int16x8_t L3 = ConvertU8ToS16(vld1_dup_u8(dst + 3 * BPS - 1)); - const int16x8_t r0_lo = vaddq_s16(L0, d_lo); // L[r] + A[c] - A[-1] - const int16x8_t r1_lo = vaddq_s16(L1, d_lo); - const int16x8_t r2_lo = vaddq_s16(L2, d_lo); - const int16x8_t r3_lo = vaddq_s16(L3, d_lo); - const int16x8_t r0_hi = vaddq_s16(L0, d_hi); - const int16x8_t r1_hi = vaddq_s16(L1, d_hi); - const int16x8_t r2_hi = vaddq_s16(L2, d_hi); - const int16x8_t r3_hi = vaddq_s16(L3, d_hi); - // Saturate and store the result. - const uint8x16_t row0 = vcombine_u8(vqmovun_s16(r0_lo), vqmovun_s16(r0_hi)); - const uint8x16_t row1 = vcombine_u8(vqmovun_s16(r1_lo), vqmovun_s16(r1_hi)); - const uint8x16_t row2 = vcombine_u8(vqmovun_s16(r2_lo), vqmovun_s16(r2_hi)); - const uint8x16_t row3 = vcombine_u8(vqmovun_s16(r3_lo), vqmovun_s16(r3_hi)); - vst1q_u8(dst + 0 * BPS, row0); - vst1q_u8(dst + 1 * BPS, row1); - vst1q_u8(dst + 2 * BPS, row2); - vst1q_u8(dst + 3 * BPS, row3); - dst += 4 * BPS; - } -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8DspInitNEON(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitNEON(void) { - VP8Transform = TransformTwo; - VP8TransformAC3 = TransformAC3; - VP8TransformDC = TransformDC; - VP8TransformWHT = TransformWHT; - - VP8VFilter16 = VFilter16; - VP8VFilter16i = VFilter16i; - VP8HFilter16 = HFilter16; -#if !defined(WORK_AROUND_GCC) - VP8HFilter16i = HFilter16i; -#endif - VP8VFilter8 = VFilter8; - VP8VFilter8i = VFilter8i; -#if !defined(WORK_AROUND_GCC) - VP8HFilter8 = HFilter8; - VP8HFilter8i = HFilter8i; -#endif - VP8SimpleVFilter16 = SimpleVFilter16; - VP8SimpleHFilter16 = SimpleHFilter16; - VP8SimpleVFilter16i = SimpleVFilter16i; - VP8SimpleHFilter16i = SimpleHFilter16i; - - VP8PredLuma4[0] = DC4; - VP8PredLuma4[1] = TM4; - VP8PredLuma4[2] = VE4; - VP8PredLuma4[4] = RD4; - VP8PredLuma4[6] = LD4; - - VP8PredLuma16[0] = DC16TopLeft; - VP8PredLuma16[1] = TM16; - VP8PredLuma16[2] = VE16; - VP8PredLuma16[3] = HE16; - VP8PredLuma16[4] = DC16NoTop; - VP8PredLuma16[5] = DC16NoLeft; - VP8PredLuma16[6] = DC16NoTopLeft; - - VP8PredChroma8[0] = DC8uv; - VP8PredChroma8[1] = TM8uv; - VP8PredChroma8[2] = VE8uv; - VP8PredChroma8[3] = HE8uv; - VP8PredChroma8[4] = DC8uvNoTop; - VP8PredChroma8[5] = DC8uvNoLeft; - VP8PredChroma8[6] = DC8uvNoTopLeft; -} - -#else // !WEBP_USE_NEON - -WEBP_DSP_INIT_STUB(VP8DspInitNEON) - -#endif // WEBP_USE_NEON diff --git a/drivers/webp/dsp/dec_sse2.c b/drivers/webp/dsp/dec_sse2.c deleted file mode 100644 index f0a8ddcaf3..0000000000 --- a/drivers/webp/dsp/dec_sse2.c +++ /dev/null @@ -1,1231 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// SSE2 version of some decoding functions (idct, loop filtering). -// -// Author: somnath@google.com (Somnath Banerjee) -// cduvivier@google.com (Christian Duvivier) - -#include "./dsp.h" - -#if defined(WEBP_USE_SSE2) - -// The 3-coeff sparse transform in SSE2 is not really faster than the plain-C -// one it seems => disable it by default. Uncomment the following to enable: -// #define USE_TRANSFORM_AC3 - -#include <emmintrin.h> -#include "./common_sse2.h" -#include "../dec/vp8i.h" -#include "../utils/utils.h" - -//------------------------------------------------------------------------------ -// Transforms (Paragraph 14.4) - -static void Transform(const int16_t* in, uint8_t* dst, int do_two) { - // This implementation makes use of 16-bit fixed point versions of two - // multiply constants: - // K1 = sqrt(2) * cos (pi/8) ~= 85627 / 2^16 - // K2 = sqrt(2) * sin (pi/8) ~= 35468 / 2^16 - // - // To be able to use signed 16-bit integers, we use the following trick to - // have constants within range: - // - Associated constants are obtained by subtracting the 16-bit fixed point - // version of one: - // k = K - (1 << 16) => K = k + (1 << 16) - // K1 = 85267 => k1 = 20091 - // K2 = 35468 => k2 = -30068 - // - The multiplication of a variable by a constant become the sum of the - // variable and the multiplication of that variable by the associated - // constant: - // (x * K) >> 16 = (x * (k + (1 << 16))) >> 16 = ((x * k ) >> 16) + x - const __m128i k1 = _mm_set1_epi16(20091); - const __m128i k2 = _mm_set1_epi16(-30068); - __m128i T0, T1, T2, T3; - - // Load and concatenate the transform coefficients (we'll do two transforms - // in parallel). In the case of only one transform, the second half of the - // vectors will just contain random value we'll never use nor store. - __m128i in0, in1, in2, in3; - { - in0 = _mm_loadl_epi64((const __m128i*)&in[0]); - in1 = _mm_loadl_epi64((const __m128i*)&in[4]); - in2 = _mm_loadl_epi64((const __m128i*)&in[8]); - in3 = _mm_loadl_epi64((const __m128i*)&in[12]); - // a00 a10 a20 a30 x x x x - // a01 a11 a21 a31 x x x x - // a02 a12 a22 a32 x x x x - // a03 a13 a23 a33 x x x x - if (do_two) { - const __m128i inB0 = _mm_loadl_epi64((const __m128i*)&in[16]); - const __m128i inB1 = _mm_loadl_epi64((const __m128i*)&in[20]); - const __m128i inB2 = _mm_loadl_epi64((const __m128i*)&in[24]); - const __m128i inB3 = _mm_loadl_epi64((const __m128i*)&in[28]); - in0 = _mm_unpacklo_epi64(in0, inB0); - in1 = _mm_unpacklo_epi64(in1, inB1); - in2 = _mm_unpacklo_epi64(in2, inB2); - in3 = _mm_unpacklo_epi64(in3, inB3); - // a00 a10 a20 a30 b00 b10 b20 b30 - // a01 a11 a21 a31 b01 b11 b21 b31 - // a02 a12 a22 a32 b02 b12 b22 b32 - // a03 a13 a23 a33 b03 b13 b23 b33 - } - } - - // Vertical pass and subsequent transpose. - { - // First pass, c and d calculations are longer because of the "trick" - // multiplications. - const __m128i a = _mm_add_epi16(in0, in2); - const __m128i b = _mm_sub_epi16(in0, in2); - // c = MUL(in1, K2) - MUL(in3, K1) = MUL(in1, k2) - MUL(in3, k1) + in1 - in3 - const __m128i c1 = _mm_mulhi_epi16(in1, k2); - const __m128i c2 = _mm_mulhi_epi16(in3, k1); - const __m128i c3 = _mm_sub_epi16(in1, in3); - const __m128i c4 = _mm_sub_epi16(c1, c2); - const __m128i c = _mm_add_epi16(c3, c4); - // d = MUL(in1, K1) + MUL(in3, K2) = MUL(in1, k1) + MUL(in3, k2) + in1 + in3 - const __m128i d1 = _mm_mulhi_epi16(in1, k1); - const __m128i d2 = _mm_mulhi_epi16(in3, k2); - const __m128i d3 = _mm_add_epi16(in1, in3); - const __m128i d4 = _mm_add_epi16(d1, d2); - const __m128i d = _mm_add_epi16(d3, d4); - - // Second pass. - const __m128i tmp0 = _mm_add_epi16(a, d); - const __m128i tmp1 = _mm_add_epi16(b, c); - const __m128i tmp2 = _mm_sub_epi16(b, c); - const __m128i tmp3 = _mm_sub_epi16(a, d); - - // Transpose the two 4x4. - VP8Transpose_2_4x4_16b(&tmp0, &tmp1, &tmp2, &tmp3, &T0, &T1, &T2, &T3); - } - - // Horizontal pass and subsequent transpose. - { - // First pass, c and d calculations are longer because of the "trick" - // multiplications. - const __m128i four = _mm_set1_epi16(4); - const __m128i dc = _mm_add_epi16(T0, four); - const __m128i a = _mm_add_epi16(dc, T2); - const __m128i b = _mm_sub_epi16(dc, T2); - // c = MUL(T1, K2) - MUL(T3, K1) = MUL(T1, k2) - MUL(T3, k1) + T1 - T3 - const __m128i c1 = _mm_mulhi_epi16(T1, k2); - const __m128i c2 = _mm_mulhi_epi16(T3, k1); - const __m128i c3 = _mm_sub_epi16(T1, T3); - const __m128i c4 = _mm_sub_epi16(c1, c2); - const __m128i c = _mm_add_epi16(c3, c4); - // d = MUL(T1, K1) + MUL(T3, K2) = MUL(T1, k1) + MUL(T3, k2) + T1 + T3 - const __m128i d1 = _mm_mulhi_epi16(T1, k1); - const __m128i d2 = _mm_mulhi_epi16(T3, k2); - const __m128i d3 = _mm_add_epi16(T1, T3); - const __m128i d4 = _mm_add_epi16(d1, d2); - const __m128i d = _mm_add_epi16(d3, d4); - - // Second pass. - const __m128i tmp0 = _mm_add_epi16(a, d); - const __m128i tmp1 = _mm_add_epi16(b, c); - const __m128i tmp2 = _mm_sub_epi16(b, c); - const __m128i tmp3 = _mm_sub_epi16(a, d); - const __m128i shifted0 = _mm_srai_epi16(tmp0, 3); - const __m128i shifted1 = _mm_srai_epi16(tmp1, 3); - const __m128i shifted2 = _mm_srai_epi16(tmp2, 3); - const __m128i shifted3 = _mm_srai_epi16(tmp3, 3); - - // Transpose the two 4x4. - VP8Transpose_2_4x4_16b(&shifted0, &shifted1, &shifted2, &shifted3, &T0, &T1, - &T2, &T3); - } - - // Add inverse transform to 'dst' and store. - { - const __m128i zero = _mm_setzero_si128(); - // Load the reference(s). - __m128i dst0, dst1, dst2, dst3; - if (do_two) { - // Load eight bytes/pixels per line. - dst0 = _mm_loadl_epi64((__m128i*)(dst + 0 * BPS)); - dst1 = _mm_loadl_epi64((__m128i*)(dst + 1 * BPS)); - dst2 = _mm_loadl_epi64((__m128i*)(dst + 2 * BPS)); - dst3 = _mm_loadl_epi64((__m128i*)(dst + 3 * BPS)); - } else { - // Load four bytes/pixels per line. - dst0 = _mm_cvtsi32_si128(WebPMemToUint32(dst + 0 * BPS)); - dst1 = _mm_cvtsi32_si128(WebPMemToUint32(dst + 1 * BPS)); - dst2 = _mm_cvtsi32_si128(WebPMemToUint32(dst + 2 * BPS)); - dst3 = _mm_cvtsi32_si128(WebPMemToUint32(dst + 3 * BPS)); - } - // Convert to 16b. - dst0 = _mm_unpacklo_epi8(dst0, zero); - dst1 = _mm_unpacklo_epi8(dst1, zero); - dst2 = _mm_unpacklo_epi8(dst2, zero); - dst3 = _mm_unpacklo_epi8(dst3, zero); - // Add the inverse transform(s). - dst0 = _mm_add_epi16(dst0, T0); - dst1 = _mm_add_epi16(dst1, T1); - dst2 = _mm_add_epi16(dst2, T2); - dst3 = _mm_add_epi16(dst3, T3); - // Unsigned saturate to 8b. - dst0 = _mm_packus_epi16(dst0, dst0); - dst1 = _mm_packus_epi16(dst1, dst1); - dst2 = _mm_packus_epi16(dst2, dst2); - dst3 = _mm_packus_epi16(dst3, dst3); - // Store the results. - if (do_two) { - // Store eight bytes/pixels per line. - _mm_storel_epi64((__m128i*)(dst + 0 * BPS), dst0); - _mm_storel_epi64((__m128i*)(dst + 1 * BPS), dst1); - _mm_storel_epi64((__m128i*)(dst + 2 * BPS), dst2); - _mm_storel_epi64((__m128i*)(dst + 3 * BPS), dst3); - } else { - // Store four bytes/pixels per line. - WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(dst0)); - WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(dst1)); - WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(dst2)); - WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(dst3)); - } - } -} - -#if defined(USE_TRANSFORM_AC3) -#define MUL(a, b) (((a) * (b)) >> 16) -static void TransformAC3(const int16_t* in, uint8_t* dst) { - static const int kC1 = 20091 + (1 << 16); - static const int kC2 = 35468; - const __m128i A = _mm_set1_epi16(in[0] + 4); - const __m128i c4 = _mm_set1_epi16(MUL(in[4], kC2)); - const __m128i d4 = _mm_set1_epi16(MUL(in[4], kC1)); - const int c1 = MUL(in[1], kC2); - const int d1 = MUL(in[1], kC1); - const __m128i CD = _mm_set_epi16(0, 0, 0, 0, -d1, -c1, c1, d1); - const __m128i B = _mm_adds_epi16(A, CD); - const __m128i m0 = _mm_adds_epi16(B, d4); - const __m128i m1 = _mm_adds_epi16(B, c4); - const __m128i m2 = _mm_subs_epi16(B, c4); - const __m128i m3 = _mm_subs_epi16(B, d4); - const __m128i zero = _mm_setzero_si128(); - // Load the source pixels. - __m128i dst0 = _mm_cvtsi32_si128(WebPMemToUint32(dst + 0 * BPS)); - __m128i dst1 = _mm_cvtsi32_si128(WebPMemToUint32(dst + 1 * BPS)); - __m128i dst2 = _mm_cvtsi32_si128(WebPMemToUint32(dst + 2 * BPS)); - __m128i dst3 = _mm_cvtsi32_si128(WebPMemToUint32(dst + 3 * BPS)); - // Convert to 16b. - dst0 = _mm_unpacklo_epi8(dst0, zero); - dst1 = _mm_unpacklo_epi8(dst1, zero); - dst2 = _mm_unpacklo_epi8(dst2, zero); - dst3 = _mm_unpacklo_epi8(dst3, zero); - // Add the inverse transform. - dst0 = _mm_adds_epi16(dst0, _mm_srai_epi16(m0, 3)); - dst1 = _mm_adds_epi16(dst1, _mm_srai_epi16(m1, 3)); - dst2 = _mm_adds_epi16(dst2, _mm_srai_epi16(m2, 3)); - dst3 = _mm_adds_epi16(dst3, _mm_srai_epi16(m3, 3)); - // Unsigned saturate to 8b. - dst0 = _mm_packus_epi16(dst0, dst0); - dst1 = _mm_packus_epi16(dst1, dst1); - dst2 = _mm_packus_epi16(dst2, dst2); - dst3 = _mm_packus_epi16(dst3, dst3); - // Store the results. - WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(dst0)); - WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(dst1)); - WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(dst2)); - WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(dst3)); -} -#undef MUL -#endif // USE_TRANSFORM_AC3 - -//------------------------------------------------------------------------------ -// Loop Filter (Paragraph 15) - -// Compute abs(p - q) = subs(p - q) OR subs(q - p) -#define MM_ABS(p, q) _mm_or_si128( \ - _mm_subs_epu8((q), (p)), \ - _mm_subs_epu8((p), (q))) - -// Shift each byte of "x" by 3 bits while preserving by the sign bit. -static WEBP_INLINE void SignedShift8b(__m128i* const x) { - const __m128i zero = _mm_setzero_si128(); - const __m128i lo_0 = _mm_unpacklo_epi8(zero, *x); - const __m128i hi_0 = _mm_unpackhi_epi8(zero, *x); - const __m128i lo_1 = _mm_srai_epi16(lo_0, 3 + 8); - const __m128i hi_1 = _mm_srai_epi16(hi_0, 3 + 8); - *x = _mm_packs_epi16(lo_1, hi_1); -} - -#define FLIP_SIGN_BIT2(a, b) { \ - a = _mm_xor_si128(a, sign_bit); \ - b = _mm_xor_si128(b, sign_bit); \ -} - -#define FLIP_SIGN_BIT4(a, b, c, d) { \ - FLIP_SIGN_BIT2(a, b); \ - FLIP_SIGN_BIT2(c, d); \ -} - -// input/output is uint8_t -static WEBP_INLINE void GetNotHEV(const __m128i* const p1, - const __m128i* const p0, - const __m128i* const q0, - const __m128i* const q1, - int hev_thresh, __m128i* const not_hev) { - const __m128i zero = _mm_setzero_si128(); - const __m128i t_1 = MM_ABS(*p1, *p0); - const __m128i t_2 = MM_ABS(*q1, *q0); - - const __m128i h = _mm_set1_epi8(hev_thresh); - const __m128i t_max = _mm_max_epu8(t_1, t_2); - - const __m128i t_max_h = _mm_subs_epu8(t_max, h); - *not_hev = _mm_cmpeq_epi8(t_max_h, zero); // not_hev <= t1 && not_hev <= t2 -} - -// input pixels are int8_t -static WEBP_INLINE void GetBaseDelta(const __m128i* const p1, - const __m128i* const p0, - const __m128i* const q0, - const __m128i* const q1, - __m128i* const delta) { - // beware of addition order, for saturation! - const __m128i p1_q1 = _mm_subs_epi8(*p1, *q1); // p1 - q1 - const __m128i q0_p0 = _mm_subs_epi8(*q0, *p0); // q0 - p0 - const __m128i s1 = _mm_adds_epi8(p1_q1, q0_p0); // p1 - q1 + 1 * (q0 - p0) - const __m128i s2 = _mm_adds_epi8(q0_p0, s1); // p1 - q1 + 2 * (q0 - p0) - const __m128i s3 = _mm_adds_epi8(q0_p0, s2); // p1 - q1 + 3 * (q0 - p0) - *delta = s3; -} - -// input and output are int8_t -static WEBP_INLINE void DoSimpleFilter(__m128i* const p0, __m128i* const q0, - const __m128i* const fl) { - const __m128i k3 = _mm_set1_epi8(3); - const __m128i k4 = _mm_set1_epi8(4); - __m128i v3 = _mm_adds_epi8(*fl, k3); - __m128i v4 = _mm_adds_epi8(*fl, k4); - - SignedShift8b(&v4); // v4 >> 3 - SignedShift8b(&v3); // v3 >> 3 - *q0 = _mm_subs_epi8(*q0, v4); // q0 -= v4 - *p0 = _mm_adds_epi8(*p0, v3); // p0 += v3 -} - -// Updates values of 2 pixels at MB edge during complex filtering. -// Update operations: -// q = q - delta and p = p + delta; where delta = [(a_hi >> 7), (a_lo >> 7)] -// Pixels 'pi' and 'qi' are int8_t on input, uint8_t on output (sign flip). -static WEBP_INLINE void Update2Pixels(__m128i* const pi, __m128i* const qi, - const __m128i* const a0_lo, - const __m128i* const a0_hi) { - const __m128i a1_lo = _mm_srai_epi16(*a0_lo, 7); - const __m128i a1_hi = _mm_srai_epi16(*a0_hi, 7); - const __m128i delta = _mm_packs_epi16(a1_lo, a1_hi); - const __m128i sign_bit = _mm_set1_epi8(0x80); - *pi = _mm_adds_epi8(*pi, delta); - *qi = _mm_subs_epi8(*qi, delta); - FLIP_SIGN_BIT2(*pi, *qi); -} - -// input pixels are uint8_t -static WEBP_INLINE void NeedsFilter(const __m128i* const p1, - const __m128i* const p0, - const __m128i* const q0, - const __m128i* const q1, - int thresh, __m128i* const mask) { - const __m128i m_thresh = _mm_set1_epi8(thresh); - const __m128i t1 = MM_ABS(*p1, *q1); // abs(p1 - q1) - const __m128i kFE = _mm_set1_epi8(0xFE); - const __m128i t2 = _mm_and_si128(t1, kFE); // set lsb of each byte to zero - const __m128i t3 = _mm_srli_epi16(t2, 1); // abs(p1 - q1) / 2 - - const __m128i t4 = MM_ABS(*p0, *q0); // abs(p0 - q0) - const __m128i t5 = _mm_adds_epu8(t4, t4); // abs(p0 - q0) * 2 - const __m128i t6 = _mm_adds_epu8(t5, t3); // abs(p0-q0)*2 + abs(p1-q1)/2 - - const __m128i t7 = _mm_subs_epu8(t6, m_thresh); // mask <= m_thresh - *mask = _mm_cmpeq_epi8(t7, _mm_setzero_si128()); -} - -//------------------------------------------------------------------------------ -// Edge filtering functions - -// Applies filter on 2 pixels (p0 and q0) -static WEBP_INLINE void DoFilter2(__m128i* const p1, __m128i* const p0, - __m128i* const q0, __m128i* const q1, - int thresh) { - __m128i a, mask; - const __m128i sign_bit = _mm_set1_epi8(0x80); - // convert p1/q1 to int8_t (for GetBaseDelta) - const __m128i p1s = _mm_xor_si128(*p1, sign_bit); - const __m128i q1s = _mm_xor_si128(*q1, sign_bit); - - NeedsFilter(p1, p0, q0, q1, thresh, &mask); - - FLIP_SIGN_BIT2(*p0, *q0); - GetBaseDelta(&p1s, p0, q0, &q1s, &a); - a = _mm_and_si128(a, mask); // mask filter values we don't care about - DoSimpleFilter(p0, q0, &a); - FLIP_SIGN_BIT2(*p0, *q0); -} - -// Applies filter on 4 pixels (p1, p0, q0 and q1) -static WEBP_INLINE void DoFilter4(__m128i* const p1, __m128i* const p0, - __m128i* const q0, __m128i* const q1, - const __m128i* const mask, int hev_thresh) { - const __m128i zero = _mm_setzero_si128(); - const __m128i sign_bit = _mm_set1_epi8(0x80); - const __m128i k64 = _mm_set1_epi8(64); - const __m128i k3 = _mm_set1_epi8(3); - const __m128i k4 = _mm_set1_epi8(4); - __m128i not_hev; - __m128i t1, t2, t3; - - // compute hev mask - GetNotHEV(p1, p0, q0, q1, hev_thresh, ¬_hev); - - // convert to signed values - FLIP_SIGN_BIT4(*p1, *p0, *q0, *q1); - - t1 = _mm_subs_epi8(*p1, *q1); // p1 - q1 - t1 = _mm_andnot_si128(not_hev, t1); // hev(p1 - q1) - t2 = _mm_subs_epi8(*q0, *p0); // q0 - p0 - t1 = _mm_adds_epi8(t1, t2); // hev(p1 - q1) + 1 * (q0 - p0) - t1 = _mm_adds_epi8(t1, t2); // hev(p1 - q1) + 2 * (q0 - p0) - t1 = _mm_adds_epi8(t1, t2); // hev(p1 - q1) + 3 * (q0 - p0) - t1 = _mm_and_si128(t1, *mask); // mask filter values we don't care about - - t2 = _mm_adds_epi8(t1, k3); // 3 * (q0 - p0) + hev(p1 - q1) + 3 - t3 = _mm_adds_epi8(t1, k4); // 3 * (q0 - p0) + hev(p1 - q1) + 4 - SignedShift8b(&t2); // (3 * (q0 - p0) + hev(p1 - q1) + 3) >> 3 - SignedShift8b(&t3); // (3 * (q0 - p0) + hev(p1 - q1) + 4) >> 3 - *p0 = _mm_adds_epi8(*p0, t2); // p0 += t2 - *q0 = _mm_subs_epi8(*q0, t3); // q0 -= t3 - FLIP_SIGN_BIT2(*p0, *q0); - - // this is equivalent to signed (a + 1) >> 1 calculation - t2 = _mm_add_epi8(t3, sign_bit); - t3 = _mm_avg_epu8(t2, zero); - t3 = _mm_sub_epi8(t3, k64); - - t3 = _mm_and_si128(not_hev, t3); // if !hev - *q1 = _mm_subs_epi8(*q1, t3); // q1 -= t3 - *p1 = _mm_adds_epi8(*p1, t3); // p1 += t3 - FLIP_SIGN_BIT2(*p1, *q1); -} - -// Applies filter on 6 pixels (p2, p1, p0, q0, q1 and q2) -static WEBP_INLINE void DoFilter6(__m128i* const p2, __m128i* const p1, - __m128i* const p0, __m128i* const q0, - __m128i* const q1, __m128i* const q2, - const __m128i* const mask, int hev_thresh) { - const __m128i zero = _mm_setzero_si128(); - const __m128i sign_bit = _mm_set1_epi8(0x80); - __m128i a, not_hev; - - // compute hev mask - GetNotHEV(p1, p0, q0, q1, hev_thresh, ¬_hev); - - FLIP_SIGN_BIT4(*p1, *p0, *q0, *q1); - FLIP_SIGN_BIT2(*p2, *q2); - GetBaseDelta(p1, p0, q0, q1, &a); - - { // do simple filter on pixels with hev - const __m128i m = _mm_andnot_si128(not_hev, *mask); - const __m128i f = _mm_and_si128(a, m); - DoSimpleFilter(p0, q0, &f); - } - - { // do strong filter on pixels with not hev - const __m128i k9 = _mm_set1_epi16(0x0900); - const __m128i k63 = _mm_set1_epi16(63); - - const __m128i m = _mm_and_si128(not_hev, *mask); - const __m128i f = _mm_and_si128(a, m); - - const __m128i f_lo = _mm_unpacklo_epi8(zero, f); - const __m128i f_hi = _mm_unpackhi_epi8(zero, f); - - const __m128i f9_lo = _mm_mulhi_epi16(f_lo, k9); // Filter (lo) * 9 - const __m128i f9_hi = _mm_mulhi_epi16(f_hi, k9); // Filter (hi) * 9 - - const __m128i a2_lo = _mm_add_epi16(f9_lo, k63); // Filter * 9 + 63 - const __m128i a2_hi = _mm_add_epi16(f9_hi, k63); // Filter * 9 + 63 - - const __m128i a1_lo = _mm_add_epi16(a2_lo, f9_lo); // Filter * 18 + 63 - const __m128i a1_hi = _mm_add_epi16(a2_hi, f9_hi); // Filter * 18 + 63 - - const __m128i a0_lo = _mm_add_epi16(a1_lo, f9_lo); // Filter * 27 + 63 - const __m128i a0_hi = _mm_add_epi16(a1_hi, f9_hi); // Filter * 27 + 63 - - Update2Pixels(p2, q2, &a2_lo, &a2_hi); - Update2Pixels(p1, q1, &a1_lo, &a1_hi); - Update2Pixels(p0, q0, &a0_lo, &a0_hi); - } -} - -// reads 8 rows across a vertical edge. -static WEBP_INLINE void Load8x4(const uint8_t* const b, int stride, - __m128i* const p, __m128i* const q) { - // A0 = 63 62 61 60 23 22 21 20 43 42 41 40 03 02 01 00 - // A1 = 73 72 71 70 33 32 31 30 53 52 51 50 13 12 11 10 - const __m128i A0 = _mm_set_epi32( - WebPMemToUint32(&b[6 * stride]), WebPMemToUint32(&b[2 * stride]), - WebPMemToUint32(&b[4 * stride]), WebPMemToUint32(&b[0 * stride])); - const __m128i A1 = _mm_set_epi32( - WebPMemToUint32(&b[7 * stride]), WebPMemToUint32(&b[3 * stride]), - WebPMemToUint32(&b[5 * stride]), WebPMemToUint32(&b[1 * stride])); - - // B0 = 53 43 52 42 51 41 50 40 13 03 12 02 11 01 10 00 - // B1 = 73 63 72 62 71 61 70 60 33 23 32 22 31 21 30 20 - const __m128i B0 = _mm_unpacklo_epi8(A0, A1); - const __m128i B1 = _mm_unpackhi_epi8(A0, A1); - - // C0 = 33 23 13 03 32 22 12 02 31 21 11 01 30 20 10 00 - // C1 = 73 63 53 43 72 62 52 42 71 61 51 41 70 60 50 40 - const __m128i C0 = _mm_unpacklo_epi16(B0, B1); - const __m128i C1 = _mm_unpackhi_epi16(B0, B1); - - // *p = 71 61 51 41 31 21 11 01 70 60 50 40 30 20 10 00 - // *q = 73 63 53 43 33 23 13 03 72 62 52 42 32 22 12 02 - *p = _mm_unpacklo_epi32(C0, C1); - *q = _mm_unpackhi_epi32(C0, C1); -} - -static WEBP_INLINE void Load16x4(const uint8_t* const r0, - const uint8_t* const r8, - int stride, - __m128i* const p1, __m128i* const p0, - __m128i* const q0, __m128i* const q1) { - // Assume the pixels around the edge (|) are numbered as follows - // 00 01 | 02 03 - // 10 11 | 12 13 - // ... | ... - // e0 e1 | e2 e3 - // f0 f1 | f2 f3 - // - // r0 is pointing to the 0th row (00) - // r8 is pointing to the 8th row (80) - - // Load - // p1 = 71 61 51 41 31 21 11 01 70 60 50 40 30 20 10 00 - // q0 = 73 63 53 43 33 23 13 03 72 62 52 42 32 22 12 02 - // p0 = f1 e1 d1 c1 b1 a1 91 81 f0 e0 d0 c0 b0 a0 90 80 - // q1 = f3 e3 d3 c3 b3 a3 93 83 f2 e2 d2 c2 b2 a2 92 82 - Load8x4(r0, stride, p1, q0); - Load8x4(r8, stride, p0, q1); - - { - // p1 = f0 e0 d0 c0 b0 a0 90 80 70 60 50 40 30 20 10 00 - // p0 = f1 e1 d1 c1 b1 a1 91 81 71 61 51 41 31 21 11 01 - // q0 = f2 e2 d2 c2 b2 a2 92 82 72 62 52 42 32 22 12 02 - // q1 = f3 e3 d3 c3 b3 a3 93 83 73 63 53 43 33 23 13 03 - const __m128i t1 = *p1; - const __m128i t2 = *q0; - *p1 = _mm_unpacklo_epi64(t1, *p0); - *p0 = _mm_unpackhi_epi64(t1, *p0); - *q0 = _mm_unpacklo_epi64(t2, *q1); - *q1 = _mm_unpackhi_epi64(t2, *q1); - } -} - -static WEBP_INLINE void Store4x4(__m128i* const x, uint8_t* dst, int stride) { - int i; - for (i = 0; i < 4; ++i, dst += stride) { - WebPUint32ToMem(dst, _mm_cvtsi128_si32(*x)); - *x = _mm_srli_si128(*x, 4); - } -} - -// Transpose back and store -static WEBP_INLINE void Store16x4(const __m128i* const p1, - const __m128i* const p0, - const __m128i* const q0, - const __m128i* const q1, - uint8_t* r0, uint8_t* r8, - int stride) { - __m128i t1, p1_s, p0_s, q0_s, q1_s; - - // p0 = 71 70 61 60 51 50 41 40 31 30 21 20 11 10 01 00 - // p1 = f1 f0 e1 e0 d1 d0 c1 c0 b1 b0 a1 a0 91 90 81 80 - t1 = *p0; - p0_s = _mm_unpacklo_epi8(*p1, t1); - p1_s = _mm_unpackhi_epi8(*p1, t1); - - // q0 = 73 72 63 62 53 52 43 42 33 32 23 22 13 12 03 02 - // q1 = f3 f2 e3 e2 d3 d2 c3 c2 b3 b2 a3 a2 93 92 83 82 - t1 = *q0; - q0_s = _mm_unpacklo_epi8(t1, *q1); - q1_s = _mm_unpackhi_epi8(t1, *q1); - - // p0 = 33 32 31 30 23 22 21 20 13 12 11 10 03 02 01 00 - // q0 = 73 72 71 70 63 62 61 60 53 52 51 50 43 42 41 40 - t1 = p0_s; - p0_s = _mm_unpacklo_epi16(t1, q0_s); - q0_s = _mm_unpackhi_epi16(t1, q0_s); - - // p1 = b3 b2 b1 b0 a3 a2 a1 a0 93 92 91 90 83 82 81 80 - // q1 = f3 f2 f1 f0 e3 e2 e1 e0 d3 d2 d1 d0 c3 c2 c1 c0 - t1 = p1_s; - p1_s = _mm_unpacklo_epi16(t1, q1_s); - q1_s = _mm_unpackhi_epi16(t1, q1_s); - - Store4x4(&p0_s, r0, stride); - r0 += 4 * stride; - Store4x4(&q0_s, r0, stride); - - Store4x4(&p1_s, r8, stride); - r8 += 4 * stride; - Store4x4(&q1_s, r8, stride); -} - -//------------------------------------------------------------------------------ -// Simple In-loop filtering (Paragraph 15.2) - -static void SimpleVFilter16(uint8_t* p, int stride, int thresh) { - // Load - __m128i p1 = _mm_loadu_si128((__m128i*)&p[-2 * stride]); - __m128i p0 = _mm_loadu_si128((__m128i*)&p[-stride]); - __m128i q0 = _mm_loadu_si128((__m128i*)&p[0]); - __m128i q1 = _mm_loadu_si128((__m128i*)&p[stride]); - - DoFilter2(&p1, &p0, &q0, &q1, thresh); - - // Store - _mm_storeu_si128((__m128i*)&p[-stride], p0); - _mm_storeu_si128((__m128i*)&p[0], q0); -} - -static void SimpleHFilter16(uint8_t* p, int stride, int thresh) { - __m128i p1, p0, q0, q1; - - p -= 2; // beginning of p1 - - Load16x4(p, p + 8 * stride, stride, &p1, &p0, &q0, &q1); - DoFilter2(&p1, &p0, &q0, &q1, thresh); - Store16x4(&p1, &p0, &q0, &q1, p, p + 8 * stride, stride); -} - -static void SimpleVFilter16i(uint8_t* p, int stride, int thresh) { - int k; - for (k = 3; k > 0; --k) { - p += 4 * stride; - SimpleVFilter16(p, stride, thresh); - } -} - -static void SimpleHFilter16i(uint8_t* p, int stride, int thresh) { - int k; - for (k = 3; k > 0; --k) { - p += 4; - SimpleHFilter16(p, stride, thresh); - } -} - -//------------------------------------------------------------------------------ -// Complex In-loop filtering (Paragraph 15.3) - -#define MAX_DIFF1(p3, p2, p1, p0, m) do { \ - m = MM_ABS(p1, p0); \ - m = _mm_max_epu8(m, MM_ABS(p3, p2)); \ - m = _mm_max_epu8(m, MM_ABS(p2, p1)); \ -} while (0) - -#define MAX_DIFF2(p3, p2, p1, p0, m) do { \ - m = _mm_max_epu8(m, MM_ABS(p1, p0)); \ - m = _mm_max_epu8(m, MM_ABS(p3, p2)); \ - m = _mm_max_epu8(m, MM_ABS(p2, p1)); \ -} while (0) - -#define LOAD_H_EDGES4(p, stride, e1, e2, e3, e4) { \ - e1 = _mm_loadu_si128((__m128i*)&(p)[0 * stride]); \ - e2 = _mm_loadu_si128((__m128i*)&(p)[1 * stride]); \ - e3 = _mm_loadu_si128((__m128i*)&(p)[2 * stride]); \ - e4 = _mm_loadu_si128((__m128i*)&(p)[3 * stride]); \ -} - -#define LOADUV_H_EDGE(p, u, v, stride) do { \ - const __m128i U = _mm_loadl_epi64((__m128i*)&(u)[(stride)]); \ - const __m128i V = _mm_loadl_epi64((__m128i*)&(v)[(stride)]); \ - p = _mm_unpacklo_epi64(U, V); \ -} while (0) - -#define LOADUV_H_EDGES4(u, v, stride, e1, e2, e3, e4) { \ - LOADUV_H_EDGE(e1, u, v, 0 * stride); \ - LOADUV_H_EDGE(e2, u, v, 1 * stride); \ - LOADUV_H_EDGE(e3, u, v, 2 * stride); \ - LOADUV_H_EDGE(e4, u, v, 3 * stride); \ -} - -#define STOREUV(p, u, v, stride) { \ - _mm_storel_epi64((__m128i*)&u[(stride)], p); \ - p = _mm_srli_si128(p, 8); \ - _mm_storel_epi64((__m128i*)&v[(stride)], p); \ -} - -static WEBP_INLINE void ComplexMask(const __m128i* const p1, - const __m128i* const p0, - const __m128i* const q0, - const __m128i* const q1, - int thresh, int ithresh, - __m128i* const mask) { - const __m128i it = _mm_set1_epi8(ithresh); - const __m128i diff = _mm_subs_epu8(*mask, it); - const __m128i thresh_mask = _mm_cmpeq_epi8(diff, _mm_setzero_si128()); - __m128i filter_mask; - NeedsFilter(p1, p0, q0, q1, thresh, &filter_mask); - *mask = _mm_and_si128(thresh_mask, filter_mask); -} - -// on macroblock edges -static void VFilter16(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - __m128i t1; - __m128i mask; - __m128i p2, p1, p0, q0, q1, q2; - - // Load p3, p2, p1, p0 - LOAD_H_EDGES4(p - 4 * stride, stride, t1, p2, p1, p0); - MAX_DIFF1(t1, p2, p1, p0, mask); - - // Load q0, q1, q2, q3 - LOAD_H_EDGES4(p, stride, q0, q1, q2, t1); - MAX_DIFF2(t1, q2, q1, q0, mask); - - ComplexMask(&p1, &p0, &q0, &q1, thresh, ithresh, &mask); - DoFilter6(&p2, &p1, &p0, &q0, &q1, &q2, &mask, hev_thresh); - - // Store - _mm_storeu_si128((__m128i*)&p[-3 * stride], p2); - _mm_storeu_si128((__m128i*)&p[-2 * stride], p1); - _mm_storeu_si128((__m128i*)&p[-1 * stride], p0); - _mm_storeu_si128((__m128i*)&p[+0 * stride], q0); - _mm_storeu_si128((__m128i*)&p[+1 * stride], q1); - _mm_storeu_si128((__m128i*)&p[+2 * stride], q2); -} - -static void HFilter16(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - __m128i mask; - __m128i p3, p2, p1, p0, q0, q1, q2, q3; - - uint8_t* const b = p - 4; - Load16x4(b, b + 8 * stride, stride, &p3, &p2, &p1, &p0); // p3, p2, p1, p0 - MAX_DIFF1(p3, p2, p1, p0, mask); - - Load16x4(p, p + 8 * stride, stride, &q0, &q1, &q2, &q3); // q0, q1, q2, q3 - MAX_DIFF2(q3, q2, q1, q0, mask); - - ComplexMask(&p1, &p0, &q0, &q1, thresh, ithresh, &mask); - DoFilter6(&p2, &p1, &p0, &q0, &q1, &q2, &mask, hev_thresh); - - Store16x4(&p3, &p2, &p1, &p0, b, b + 8 * stride, stride); - Store16x4(&q0, &q1, &q2, &q3, p, p + 8 * stride, stride); -} - -// on three inner edges -static void VFilter16i(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - int k; - __m128i p3, p2, p1, p0; // loop invariants - - LOAD_H_EDGES4(p, stride, p3, p2, p1, p0); // prologue - - for (k = 3; k > 0; --k) { - __m128i mask, tmp1, tmp2; - uint8_t* const b = p + 2 * stride; // beginning of p1 - p += 4 * stride; - - MAX_DIFF1(p3, p2, p1, p0, mask); // compute partial mask - LOAD_H_EDGES4(p, stride, p3, p2, tmp1, tmp2); - MAX_DIFF2(p3, p2, tmp1, tmp2, mask); - - // p3 and p2 are not just temporary variables here: they will be - // re-used for next span. And q2/q3 will become p1/p0 accordingly. - ComplexMask(&p1, &p0, &p3, &p2, thresh, ithresh, &mask); - DoFilter4(&p1, &p0, &p3, &p2, &mask, hev_thresh); - - // Store - _mm_storeu_si128((__m128i*)&b[0 * stride], p1); - _mm_storeu_si128((__m128i*)&b[1 * stride], p0); - _mm_storeu_si128((__m128i*)&b[2 * stride], p3); - _mm_storeu_si128((__m128i*)&b[3 * stride], p2); - - // rotate samples - p1 = tmp1; - p0 = tmp2; - } -} - -static void HFilter16i(uint8_t* p, int stride, - int thresh, int ithresh, int hev_thresh) { - int k; - __m128i p3, p2, p1, p0; // loop invariants - - Load16x4(p, p + 8 * stride, stride, &p3, &p2, &p1, &p0); // prologue - - for (k = 3; k > 0; --k) { - __m128i mask, tmp1, tmp2; - uint8_t* const b = p + 2; // beginning of p1 - - p += 4; // beginning of q0 (and next span) - - MAX_DIFF1(p3, p2, p1, p0, mask); // compute partial mask - Load16x4(p, p + 8 * stride, stride, &p3, &p2, &tmp1, &tmp2); - MAX_DIFF2(p3, p2, tmp1, tmp2, mask); - - ComplexMask(&p1, &p0, &p3, &p2, thresh, ithresh, &mask); - DoFilter4(&p1, &p0, &p3, &p2, &mask, hev_thresh); - - Store16x4(&p1, &p0, &p3, &p2, b, b + 8 * stride, stride); - - // rotate samples - p1 = tmp1; - p0 = tmp2; - } -} - -// 8-pixels wide variant, for chroma filtering -static void VFilter8(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - __m128i mask; - __m128i t1, p2, p1, p0, q0, q1, q2; - - // Load p3, p2, p1, p0 - LOADUV_H_EDGES4(u - 4 * stride, v - 4 * stride, stride, t1, p2, p1, p0); - MAX_DIFF1(t1, p2, p1, p0, mask); - - // Load q0, q1, q2, q3 - LOADUV_H_EDGES4(u, v, stride, q0, q1, q2, t1); - MAX_DIFF2(t1, q2, q1, q0, mask); - - ComplexMask(&p1, &p0, &q0, &q1, thresh, ithresh, &mask); - DoFilter6(&p2, &p1, &p0, &q0, &q1, &q2, &mask, hev_thresh); - - // Store - STOREUV(p2, u, v, -3 * stride); - STOREUV(p1, u, v, -2 * stride); - STOREUV(p0, u, v, -1 * stride); - STOREUV(q0, u, v, 0 * stride); - STOREUV(q1, u, v, 1 * stride); - STOREUV(q2, u, v, 2 * stride); -} - -static void HFilter8(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - __m128i mask; - __m128i p3, p2, p1, p0, q0, q1, q2, q3; - - uint8_t* const tu = u - 4; - uint8_t* const tv = v - 4; - Load16x4(tu, tv, stride, &p3, &p2, &p1, &p0); // p3, p2, p1, p0 - MAX_DIFF1(p3, p2, p1, p0, mask); - - Load16x4(u, v, stride, &q0, &q1, &q2, &q3); // q0, q1, q2, q3 - MAX_DIFF2(q3, q2, q1, q0, mask); - - ComplexMask(&p1, &p0, &q0, &q1, thresh, ithresh, &mask); - DoFilter6(&p2, &p1, &p0, &q0, &q1, &q2, &mask, hev_thresh); - - Store16x4(&p3, &p2, &p1, &p0, tu, tv, stride); - Store16x4(&q0, &q1, &q2, &q3, u, v, stride); -} - -static void VFilter8i(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - __m128i mask; - __m128i t1, t2, p1, p0, q0, q1; - - // Load p3, p2, p1, p0 - LOADUV_H_EDGES4(u, v, stride, t2, t1, p1, p0); - MAX_DIFF1(t2, t1, p1, p0, mask); - - u += 4 * stride; - v += 4 * stride; - - // Load q0, q1, q2, q3 - LOADUV_H_EDGES4(u, v, stride, q0, q1, t1, t2); - MAX_DIFF2(t2, t1, q1, q0, mask); - - ComplexMask(&p1, &p0, &q0, &q1, thresh, ithresh, &mask); - DoFilter4(&p1, &p0, &q0, &q1, &mask, hev_thresh); - - // Store - STOREUV(p1, u, v, -2 * stride); - STOREUV(p0, u, v, -1 * stride); - STOREUV(q0, u, v, 0 * stride); - STOREUV(q1, u, v, 1 * stride); -} - -static void HFilter8i(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_thresh) { - __m128i mask; - __m128i t1, t2, p1, p0, q0, q1; - Load16x4(u, v, stride, &t2, &t1, &p1, &p0); // p3, p2, p1, p0 - MAX_DIFF1(t2, t1, p1, p0, mask); - - u += 4; // beginning of q0 - v += 4; - Load16x4(u, v, stride, &q0, &q1, &t1, &t2); // q0, q1, q2, q3 - MAX_DIFF2(t2, t1, q1, q0, mask); - - ComplexMask(&p1, &p0, &q0, &q1, thresh, ithresh, &mask); - DoFilter4(&p1, &p0, &q0, &q1, &mask, hev_thresh); - - u -= 2; // beginning of p1 - v -= 2; - Store16x4(&p1, &p0, &q0, &q1, u, v, stride); -} - -//------------------------------------------------------------------------------ -// 4x4 predictions - -#define DST(x, y) dst[(x) + (y) * BPS] -#define AVG3(a, b, c) (((a) + 2 * (b) + (c) + 2) >> 2) - -// We use the following 8b-arithmetic tricks: -// (a + 2 * b + c + 2) >> 2 = (AC + b + 1) >> 1 -// where: AC = (a + c) >> 1 = [(a + c + 1) >> 1] - [(a^c) & 1] -// and: -// (a + 2 * b + c + 2) >> 2 = (AB + BC + 1) >> 1 - (ab|bc)&lsb -// where: AC = (a + b + 1) >> 1, BC = (b + c + 1) >> 1 -// and ab = a ^ b, bc = b ^ c, lsb = (AC^BC)&1 - -static void VE4(uint8_t* dst) { // vertical - const __m128i one = _mm_set1_epi8(1); - const __m128i ABCDEFGH = _mm_loadl_epi64((__m128i*)(dst - BPS - 1)); - const __m128i BCDEFGH0 = _mm_srli_si128(ABCDEFGH, 1); - const __m128i CDEFGH00 = _mm_srli_si128(ABCDEFGH, 2); - const __m128i a = _mm_avg_epu8(ABCDEFGH, CDEFGH00); - const __m128i lsb = _mm_and_si128(_mm_xor_si128(ABCDEFGH, CDEFGH00), one); - const __m128i b = _mm_subs_epu8(a, lsb); - const __m128i avg = _mm_avg_epu8(b, BCDEFGH0); - const uint32_t vals = _mm_cvtsi128_si32(avg); - int i; - for (i = 0; i < 4; ++i) { - WebPUint32ToMem(dst + i * BPS, vals); - } -} - -static void LD4(uint8_t* dst) { // Down-Left - const __m128i one = _mm_set1_epi8(1); - const __m128i ABCDEFGH = _mm_loadl_epi64((__m128i*)(dst - BPS)); - const __m128i BCDEFGH0 = _mm_srli_si128(ABCDEFGH, 1); - const __m128i CDEFGH00 = _mm_srli_si128(ABCDEFGH, 2); - const __m128i CDEFGHH0 = _mm_insert_epi16(CDEFGH00, dst[-BPS + 7], 3); - const __m128i avg1 = _mm_avg_epu8(ABCDEFGH, CDEFGHH0); - const __m128i lsb = _mm_and_si128(_mm_xor_si128(ABCDEFGH, CDEFGHH0), one); - const __m128i avg2 = _mm_subs_epu8(avg1, lsb); - const __m128i abcdefg = _mm_avg_epu8(avg2, BCDEFGH0); - WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32( abcdefg )); - WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 1))); - WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 2))); - WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 3))); -} - -static void VR4(uint8_t* dst) { // Vertical-Right - const __m128i one = _mm_set1_epi8(1); - const int I = dst[-1 + 0 * BPS]; - const int J = dst[-1 + 1 * BPS]; - const int K = dst[-1 + 2 * BPS]; - const int X = dst[-1 - BPS]; - const __m128i XABCD = _mm_loadl_epi64((__m128i*)(dst - BPS - 1)); - const __m128i ABCD0 = _mm_srli_si128(XABCD, 1); - const __m128i abcd = _mm_avg_epu8(XABCD, ABCD0); - const __m128i _XABCD = _mm_slli_si128(XABCD, 1); - const __m128i IXABCD = _mm_insert_epi16(_XABCD, I | (X << 8), 0); - const __m128i avg1 = _mm_avg_epu8(IXABCD, ABCD0); - const __m128i lsb = _mm_and_si128(_mm_xor_si128(IXABCD, ABCD0), one); - const __m128i avg2 = _mm_subs_epu8(avg1, lsb); - const __m128i efgh = _mm_avg_epu8(avg2, XABCD); - WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32( abcd )); - WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32( efgh )); - WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_slli_si128(abcd, 1))); - WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_slli_si128(efgh, 1))); - - // these two are hard to implement in SSE2, so we keep the C-version: - DST(0, 2) = AVG3(J, I, X); - DST(0, 3) = AVG3(K, J, I); -} - -static void VL4(uint8_t* dst) { // Vertical-Left - const __m128i one = _mm_set1_epi8(1); - const __m128i ABCDEFGH = _mm_loadl_epi64((__m128i*)(dst - BPS)); - const __m128i BCDEFGH_ = _mm_srli_si128(ABCDEFGH, 1); - const __m128i CDEFGH__ = _mm_srli_si128(ABCDEFGH, 2); - const __m128i avg1 = _mm_avg_epu8(ABCDEFGH, BCDEFGH_); - const __m128i avg2 = _mm_avg_epu8(CDEFGH__, BCDEFGH_); - const __m128i avg3 = _mm_avg_epu8(avg1, avg2); - const __m128i lsb1 = _mm_and_si128(_mm_xor_si128(avg1, avg2), one); - const __m128i ab = _mm_xor_si128(ABCDEFGH, BCDEFGH_); - const __m128i bc = _mm_xor_si128(CDEFGH__, BCDEFGH_); - const __m128i abbc = _mm_or_si128(ab, bc); - const __m128i lsb2 = _mm_and_si128(abbc, lsb1); - const __m128i avg4 = _mm_subs_epu8(avg3, lsb2); - const uint32_t extra_out = _mm_cvtsi128_si32(_mm_srli_si128(avg4, 4)); - WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32( avg1 )); - WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32( avg4 )); - WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(avg1, 1))); - WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(avg4, 1))); - - // these two are hard to get and irregular - DST(3, 2) = (extra_out >> 0) & 0xff; - DST(3, 3) = (extra_out >> 8) & 0xff; -} - -static void RD4(uint8_t* dst) { // Down-right - const __m128i one = _mm_set1_epi8(1); - const __m128i XABCD = _mm_loadl_epi64((__m128i*)(dst - BPS - 1)); - const __m128i ____XABCD = _mm_slli_si128(XABCD, 4); - const uint32_t I = dst[-1 + 0 * BPS]; - const uint32_t J = dst[-1 + 1 * BPS]; - const uint32_t K = dst[-1 + 2 * BPS]; - const uint32_t L = dst[-1 + 3 * BPS]; - const __m128i LKJI_____ = - _mm_cvtsi32_si128(L | (K << 8) | (J << 16) | (I << 24)); - const __m128i LKJIXABCD = _mm_or_si128(LKJI_____, ____XABCD); - const __m128i KJIXABCD_ = _mm_srli_si128(LKJIXABCD, 1); - const __m128i JIXABCD__ = _mm_srli_si128(LKJIXABCD, 2); - const __m128i avg1 = _mm_avg_epu8(JIXABCD__, LKJIXABCD); - const __m128i lsb = _mm_and_si128(_mm_xor_si128(JIXABCD__, LKJIXABCD), one); - const __m128i avg2 = _mm_subs_epu8(avg1, lsb); - const __m128i abcdefg = _mm_avg_epu8(avg2, KJIXABCD_); - WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32( abcdefg )); - WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 1))); - WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 2))); - WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 3))); -} - -#undef DST -#undef AVG3 - -//------------------------------------------------------------------------------ -// Luma 16x16 - -static WEBP_INLINE void TrueMotion(uint8_t* dst, int size) { - const uint8_t* top = dst - BPS; - const __m128i zero = _mm_setzero_si128(); - int y; - if (size == 4) { - const __m128i top_values = _mm_cvtsi32_si128(WebPMemToUint32(top)); - const __m128i top_base = _mm_unpacklo_epi8(top_values, zero); - for (y = 0; y < 4; ++y, dst += BPS) { - const int val = dst[-1] - top[-1]; - const __m128i base = _mm_set1_epi16(val); - const __m128i out = _mm_packus_epi16(_mm_add_epi16(base, top_base), zero); - WebPUint32ToMem(dst, _mm_cvtsi128_si32(out)); - } - } else if (size == 8) { - const __m128i top_values = _mm_loadl_epi64((const __m128i*)top); - const __m128i top_base = _mm_unpacklo_epi8(top_values, zero); - for (y = 0; y < 8; ++y, dst += BPS) { - const int val = dst[-1] - top[-1]; - const __m128i base = _mm_set1_epi16(val); - const __m128i out = _mm_packus_epi16(_mm_add_epi16(base, top_base), zero); - _mm_storel_epi64((__m128i*)dst, out); - } - } else { - const __m128i top_values = _mm_loadu_si128((const __m128i*)top); - const __m128i top_base_0 = _mm_unpacklo_epi8(top_values, zero); - const __m128i top_base_1 = _mm_unpackhi_epi8(top_values, zero); - for (y = 0; y < 16; ++y, dst += BPS) { - const int val = dst[-1] - top[-1]; - const __m128i base = _mm_set1_epi16(val); - const __m128i out_0 = _mm_add_epi16(base, top_base_0); - const __m128i out_1 = _mm_add_epi16(base, top_base_1); - const __m128i out = _mm_packus_epi16(out_0, out_1); - _mm_storeu_si128((__m128i*)dst, out); - } - } -} - -static void TM4(uint8_t* dst) { TrueMotion(dst, 4); } -static void TM8uv(uint8_t* dst) { TrueMotion(dst, 8); } -static void TM16(uint8_t* dst) { TrueMotion(dst, 16); } - -static void VE16(uint8_t* dst) { - const __m128i top = _mm_loadu_si128((const __m128i*)(dst - BPS)); - int j; - for (j = 0; j < 16; ++j) { - _mm_storeu_si128((__m128i*)(dst + j * BPS), top); - } -} - -static void HE16(uint8_t* dst) { // horizontal - int j; - for (j = 16; j > 0; --j) { - const __m128i values = _mm_set1_epi8(dst[-1]); - _mm_storeu_si128((__m128i*)dst, values); - dst += BPS; - } -} - -static WEBP_INLINE void Put16(uint8_t v, uint8_t* dst) { - int j; - const __m128i values = _mm_set1_epi8(v); - for (j = 0; j < 16; ++j) { - _mm_storeu_si128((__m128i*)(dst + j * BPS), values); - } -} - -static void DC16(uint8_t* dst) { // DC - const __m128i zero = _mm_setzero_si128(); - const __m128i top = _mm_loadu_si128((const __m128i*)(dst - BPS)); - const __m128i sad8x2 = _mm_sad_epu8(top, zero); - // sum the two sads: sad8x2[0:1] + sad8x2[8:9] - const __m128i sum = _mm_add_epi16(sad8x2, _mm_shuffle_epi32(sad8x2, 2)); - int left = 0; - int j; - for (j = 0; j < 16; ++j) { - left += dst[-1 + j * BPS]; - } - { - const int DC = _mm_cvtsi128_si32(sum) + left + 16; - Put16(DC >> 5, dst); - } -} - -static void DC16NoTop(uint8_t* dst) { // DC with top samples not available - int DC = 8; - int j; - for (j = 0; j < 16; ++j) { - DC += dst[-1 + j * BPS]; - } - Put16(DC >> 4, dst); -} - -static void DC16NoLeft(uint8_t* dst) { // DC with left samples not available - const __m128i zero = _mm_setzero_si128(); - const __m128i top = _mm_loadu_si128((const __m128i*)(dst - BPS)); - const __m128i sad8x2 = _mm_sad_epu8(top, zero); - // sum the two sads: sad8x2[0:1] + sad8x2[8:9] - const __m128i sum = _mm_add_epi16(sad8x2, _mm_shuffle_epi32(sad8x2, 2)); - const int DC = _mm_cvtsi128_si32(sum) + 8; - Put16(DC >> 4, dst); -} - -static void DC16NoTopLeft(uint8_t* dst) { // DC with no top and left samples - Put16(0x80, dst); -} - -//------------------------------------------------------------------------------ -// Chroma - -static void VE8uv(uint8_t* dst) { // vertical - int j; - const __m128i top = _mm_loadl_epi64((const __m128i*)(dst - BPS)); - for (j = 0; j < 8; ++j) { - _mm_storel_epi64((__m128i*)(dst + j * BPS), top); - } -} - -static void HE8uv(uint8_t* dst) { // horizontal - int j; - for (j = 0; j < 8; ++j) { - const __m128i values = _mm_set1_epi8(dst[-1]); - _mm_storel_epi64((__m128i*)dst, values); - dst += BPS; - } -} - -// helper for chroma-DC predictions -static WEBP_INLINE void Put8x8uv(uint8_t v, uint8_t* dst) { - int j; - const __m128i values = _mm_set1_epi8(v); - for (j = 0; j < 8; ++j) { - _mm_storel_epi64((__m128i*)(dst + j * BPS), values); - } -} - -static void DC8uv(uint8_t* dst) { // DC - const __m128i zero = _mm_setzero_si128(); - const __m128i top = _mm_loadl_epi64((const __m128i*)(dst - BPS)); - const __m128i sum = _mm_sad_epu8(top, zero); - int left = 0; - int j; - for (j = 0; j < 8; ++j) { - left += dst[-1 + j * BPS]; - } - { - const int DC = _mm_cvtsi128_si32(sum) + left + 8; - Put8x8uv(DC >> 4, dst); - } -} - -static void DC8uvNoLeft(uint8_t* dst) { // DC with no left samples - const __m128i zero = _mm_setzero_si128(); - const __m128i top = _mm_loadl_epi64((const __m128i*)(dst - BPS)); - const __m128i sum = _mm_sad_epu8(top, zero); - const int DC = _mm_cvtsi128_si32(sum) + 4; - Put8x8uv(DC >> 3, dst); -} - -static void DC8uvNoTop(uint8_t* dst) { // DC with no top samples - int dc0 = 4; - int i; - for (i = 0; i < 8; ++i) { - dc0 += dst[-1 + i * BPS]; - } - Put8x8uv(dc0 >> 3, dst); -} - -static void DC8uvNoTopLeft(uint8_t* dst) { // DC with nothing - Put8x8uv(0x80, dst); -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8DspInitSSE2(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitSSE2(void) { - VP8Transform = Transform; -#if defined(USE_TRANSFORM_AC3) - VP8TransformAC3 = TransformAC3; -#endif - - VP8VFilter16 = VFilter16; - VP8HFilter16 = HFilter16; - VP8VFilter8 = VFilter8; - VP8HFilter8 = HFilter8; - VP8VFilter16i = VFilter16i; - VP8HFilter16i = HFilter16i; - VP8VFilter8i = VFilter8i; - VP8HFilter8i = HFilter8i; - - VP8SimpleVFilter16 = SimpleVFilter16; - VP8SimpleHFilter16 = SimpleHFilter16; - VP8SimpleVFilter16i = SimpleVFilter16i; - VP8SimpleHFilter16i = SimpleHFilter16i; - - VP8PredLuma4[1] = TM4; - VP8PredLuma4[2] = VE4; - VP8PredLuma4[4] = RD4; - VP8PredLuma4[5] = VR4; - VP8PredLuma4[6] = LD4; - VP8PredLuma4[7] = VL4; - - VP8PredLuma16[0] = DC16; - VP8PredLuma16[1] = TM16; - VP8PredLuma16[2] = VE16; - VP8PredLuma16[3] = HE16; - VP8PredLuma16[4] = DC16NoTop; - VP8PredLuma16[5] = DC16NoLeft; - VP8PredLuma16[6] = DC16NoTopLeft; - - VP8PredChroma8[0] = DC8uv; - VP8PredChroma8[1] = TM8uv; - VP8PredChroma8[2] = VE8uv; - VP8PredChroma8[3] = HE8uv; - VP8PredChroma8[4] = DC8uvNoTop; - VP8PredChroma8[5] = DC8uvNoLeft; - VP8PredChroma8[6] = DC8uvNoTopLeft; -} - -#else // !WEBP_USE_SSE2 - -WEBP_DSP_INIT_STUB(VP8DspInitSSE2) - -#endif // WEBP_USE_SSE2 diff --git a/drivers/webp/dsp/dec_sse41.c b/drivers/webp/dsp/dec_sse41.c deleted file mode 100644 index 8d6aed13e6..0000000000 --- a/drivers/webp/dsp/dec_sse41.c +++ /dev/null @@ -1,46 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// SSE4 version of some decoding functions. -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_SSE41) - -#include <smmintrin.h> -#include "../dec/vp8i.h" -#include "../utils/utils.h" - -static void HE16(uint8_t* dst) { // horizontal - int j; - const __m128i kShuffle3 = _mm_set1_epi8(3); - for (j = 16; j > 0; --j) { - const __m128i in = _mm_cvtsi32_si128(WebPMemToUint32(dst - 4)); - const __m128i values = _mm_shuffle_epi8(in, kShuffle3); - _mm_storeu_si128((__m128i*)dst, values); - dst += BPS; - } -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8DspInitSSE41(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitSSE41(void) { - VP8PredLuma16[3] = HE16; -} - -#else // !WEBP_USE_SSE41 - -WEBP_DSP_INIT_STUB(VP8DspInitSSE41) - -#endif // WEBP_USE_SSE41 diff --git a/drivers/webp/dsp/dsp.h b/drivers/webp/dsp/dsp.h deleted file mode 100644 index 2469f7d3ac..0000000000 --- a/drivers/webp/dsp/dsp.h +++ /dev/null @@ -1,569 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Speed-critical functions. -// -// Author: Skal (pascal.massimino@gmail.com) - -#ifndef WEBP_DSP_DSP_H_ -#define WEBP_DSP_DSP_H_ - -#ifdef HAVE_CONFIG_H -#include "webp/config.h" -#endif - -#include "webp/types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define BPS 32 // this is the common stride for enc/dec - -//------------------------------------------------------------------------------ -// CPU detection - -#if defined(__GNUC__) -# define LOCAL_GCC_VERSION ((__GNUC__ << 8) | __GNUC_MINOR__) -# define LOCAL_GCC_PREREQ(maj, min) \ - (LOCAL_GCC_VERSION >= (((maj) << 8) | (min))) -#else -# define LOCAL_GCC_VERSION 0 -# define LOCAL_GCC_PREREQ(maj, min) 0 -#endif - -#ifndef __has_builtin -# define __has_builtin(x) 0 -#endif - -#if defined(_MSC_VER) && _MSC_VER > 1310 && \ - (defined(_M_X64) || defined(_M_IX86)) -#define WEBP_MSC_SSE2 // Visual C++ SSE2 targets -#endif - -#if defined(_MSC_VER) && _MSC_VER >= 1500 && \ - (defined(_M_X64) || defined(_M_IX86)) -#define WEBP_MSC_SSE41 // Visual C++ SSE4.1 targets -#endif - -// WEBP_HAVE_* are used to indicate the presence of the instruction set in dsp -// files without intrinsics, allowing the corresponding Init() to be called. -// Files containing intrinsics will need to be built targeting the instruction -// set so should succeed on one of the earlier tests. -#if defined(__SSE2__) || defined(WEBP_MSC_SSE2) || defined(WEBP_HAVE_SSE2) -#define WEBP_USE_SSE2 -#endif - -#if defined(__SSE4_1__) || defined(WEBP_MSC_SSE41) || defined(WEBP_HAVE_SSE41) -#define WEBP_USE_SSE41 -#endif - -#if defined(__AVX2__) || defined(WEBP_HAVE_AVX2) -#define WEBP_USE_AVX2 -#endif - -#if defined(__ANDROID__) && defined(__ARM_ARCH_7A__) -#define WEBP_ANDROID_NEON // Android targets that might support NEON -#endif - -// The intrinsics currently cause compiler errors with arm-nacl-gcc and the -// inline assembly would need to be modified for use with Native Client. -#if (defined(__ARM_NEON__) || defined(WEBP_ANDROID_NEON) || \ - defined(__aarch64__) || defined(WEBP_HAVE_NEON)) && \ - !defined(__native_client__) -#define WEBP_USE_NEON -#endif - -#if defined(_MSC_VER) && _MSC_VER >= 1700 && defined(_M_ARM) -#define WEBP_USE_NEON -#define WEBP_USE_INTRINSICS -#endif - -#if defined(__mips__) && !defined(__mips64) && \ - defined(__mips_isa_rev) && (__mips_isa_rev >= 1) && (__mips_isa_rev < 6) -#define WEBP_USE_MIPS32 -#if (__mips_isa_rev >= 2) -#define WEBP_USE_MIPS32_R2 -#if defined(__mips_dspr2) || (__mips_dsp_rev >= 2) -#define WEBP_USE_MIPS_DSP_R2 -#endif -#endif -#endif - -#if defined(__mips_msa) && defined(__mips_isa_rev) && (__mips_isa_rev >= 5) -#define WEBP_USE_MSA -#endif - -// This macro prevents thread_sanitizer from reporting known concurrent writes. -#define WEBP_TSAN_IGNORE_FUNCTION -#if defined(__has_feature) -#if __has_feature(thread_sanitizer) -#undef WEBP_TSAN_IGNORE_FUNCTION -#define WEBP_TSAN_IGNORE_FUNCTION __attribute__((no_sanitize_thread)) -#endif -#endif - -#define WEBP_UBSAN_IGNORE_UNDEF -#define WEBP_UBSAN_IGNORE_UNSIGNED_OVERFLOW -#if !defined(WEBP_FORCE_ALIGNED) && defined(__clang__) && \ - defined(__has_attribute) -#if __has_attribute(no_sanitize) -// This macro prevents the undefined behavior sanitizer from reporting -// failures. This is only meant to silence unaligned loads on platforms that -// are known to support them. -#undef WEBP_UBSAN_IGNORE_UNDEF -#define WEBP_UBSAN_IGNORE_UNDEF \ - __attribute__((no_sanitize("undefined"))) - -// This macro prevents the undefined behavior sanitizer from reporting -// failures related to unsigned integer overflows. This is only meant to -// silence cases where this well defined behavior is expected. -#undef WEBP_UBSAN_IGNORE_UNSIGNED_OVERFLOW -#define WEBP_UBSAN_IGNORE_UNSIGNED_OVERFLOW \ - __attribute__((no_sanitize("unsigned-integer-overflow"))) -#endif -#endif - -typedef enum { - kSSE2, - kSSE3, - kSSE4_1, - kAVX, - kAVX2, - kNEON, - kMIPS32, - kMIPSdspR2, - kMSA -} CPUFeature; -// returns true if the CPU supports the feature. -typedef int (*VP8CPUInfo)(CPUFeature feature); -WEBP_EXTERN(VP8CPUInfo) VP8GetCPUInfo; - -//------------------------------------------------------------------------------ -// Init stub generator - -// Defines an init function stub to ensure each module exposes a symbol, -// avoiding a compiler warning. -#define WEBP_DSP_INIT_STUB(func) \ - extern void func(void); \ - WEBP_TSAN_IGNORE_FUNCTION void func(void) {} - -//------------------------------------------------------------------------------ -// Encoding - -// Transforms -// VP8Idct: Does one of two inverse transforms. If do_two is set, the transforms -// will be done for (ref, in, dst) and (ref + 4, in + 16, dst + 4). -typedef void (*VP8Idct)(const uint8_t* ref, const int16_t* in, uint8_t* dst, - int do_two); -typedef void (*VP8Fdct)(const uint8_t* src, const uint8_t* ref, int16_t* out); -typedef void (*VP8WHT)(const int16_t* in, int16_t* out); -extern VP8Idct VP8ITransform; -extern VP8Fdct VP8FTransform; -extern VP8Fdct VP8FTransform2; // performs two transforms at a time -extern VP8WHT VP8FTransformWHT; -// Predictions -// *dst is the destination block. *top and *left can be NULL. -typedef void (*VP8IntraPreds)(uint8_t *dst, const uint8_t* left, - const uint8_t* top); -typedef void (*VP8Intra4Preds)(uint8_t *dst, const uint8_t* top); -extern VP8Intra4Preds VP8EncPredLuma4; -extern VP8IntraPreds VP8EncPredLuma16; -extern VP8IntraPreds VP8EncPredChroma8; - -typedef int (*VP8Metric)(const uint8_t* pix, const uint8_t* ref); -extern VP8Metric VP8SSE16x16, VP8SSE16x8, VP8SSE8x8, VP8SSE4x4; -typedef int (*VP8WMetric)(const uint8_t* pix, const uint8_t* ref, - const uint16_t* const weights); -// The weights for VP8TDisto4x4 and VP8TDisto16x16 contain a row-major -// 4 by 4 symmetric matrix. -extern VP8WMetric VP8TDisto4x4, VP8TDisto16x16; - -typedef void (*VP8BlockCopy)(const uint8_t* src, uint8_t* dst); -extern VP8BlockCopy VP8Copy4x4; -extern VP8BlockCopy VP8Copy16x8; -// Quantization -struct VP8Matrix; // forward declaration -typedef int (*VP8QuantizeBlock)(int16_t in[16], int16_t out[16], - const struct VP8Matrix* const mtx); -// Same as VP8QuantizeBlock, but quantizes two consecutive blocks. -typedef int (*VP8Quantize2Blocks)(int16_t in[32], int16_t out[32], - const struct VP8Matrix* const mtx); - -extern VP8QuantizeBlock VP8EncQuantizeBlock; -extern VP8Quantize2Blocks VP8EncQuantize2Blocks; - -// specific to 2nd transform: -typedef int (*VP8QuantizeBlockWHT)(int16_t in[16], int16_t out[16], - const struct VP8Matrix* const mtx); -extern VP8QuantizeBlockWHT VP8EncQuantizeBlockWHT; - -extern const int VP8DspScan[16 + 4 + 4]; - -// Collect histogram for susceptibility calculation. -#define MAX_COEFF_THRESH 31 // size of histogram used by CollectHistogram. -typedef struct { - // We only need to store max_value and last_non_zero, not the distribution. - int max_value; - int last_non_zero; -} VP8Histogram; -typedef void (*VP8CHisto)(const uint8_t* ref, const uint8_t* pred, - int start_block, int end_block, - VP8Histogram* const histo); -extern VP8CHisto VP8CollectHistogram; -// General-purpose util function to help VP8CollectHistogram(). -void VP8SetHistogramData(const int distribution[MAX_COEFF_THRESH + 1], - VP8Histogram* const histo); - -// must be called before using any of the above -void VP8EncDspInit(void); - -//------------------------------------------------------------------------------ -// cost functions (encoding) - -extern const uint16_t VP8EntropyCost[256]; // 8bit fixed-point log(p) -// approximate cost per level: -extern const uint16_t VP8LevelFixedCosts[2047 /*MAX_LEVEL*/ + 1]; -extern const uint8_t VP8EncBands[16 + 1]; - -struct VP8Residual; -typedef void (*VP8SetResidualCoeffsFunc)(const int16_t* const coeffs, - struct VP8Residual* const res); -extern VP8SetResidualCoeffsFunc VP8SetResidualCoeffs; - -// Cost calculation function. -typedef int (*VP8GetResidualCostFunc)(int ctx0, - const struct VP8Residual* const res); -extern VP8GetResidualCostFunc VP8GetResidualCost; - -// must be called before anything using the above -void VP8EncDspCostInit(void); - -//------------------------------------------------------------------------------ -// SSIM utils - -// struct for accumulating statistical moments -typedef struct { - double w; // sum(w_i) : sum of weights - double xm, ym; // sum(w_i * x_i), sum(w_i * y_i) - double xxm, xym, yym; // sum(w_i * x_i * x_i), etc. -} VP8DistoStats; - -#define VP8_SSIM_KERNEL 3 // total size of the kernel: 2 * VP8_SSIM_KERNEL + 1 -typedef void (*VP8SSIMAccumulateClippedFunc)(const uint8_t* src1, int stride1, - const uint8_t* src2, int stride2, - int xo, int yo, // center position - int W, int H, // plane dimension - VP8DistoStats* const stats); - -// This version is called with the guarantee that you can load 8 bytes and -// 8 rows at offset src1 and src2 -typedef void (*VP8SSIMAccumulateFunc)(const uint8_t* src1, int stride1, - const uint8_t* src2, int stride2, - VP8DistoStats* const stats); - -extern VP8SSIMAccumulateFunc VP8SSIMAccumulate; // unclipped / unchecked -extern VP8SSIMAccumulateClippedFunc VP8SSIMAccumulateClipped; // with clipping - -// must be called before using any of the above directly -void VP8SSIMDspInit(void); - -//------------------------------------------------------------------------------ -// Decoding - -typedef void (*VP8DecIdct)(const int16_t* coeffs, uint8_t* dst); -// when doing two transforms, coeffs is actually int16_t[2][16]. -typedef void (*VP8DecIdct2)(const int16_t* coeffs, uint8_t* dst, int do_two); -extern VP8DecIdct2 VP8Transform; -extern VP8DecIdct VP8TransformAC3; -extern VP8DecIdct VP8TransformUV; -extern VP8DecIdct VP8TransformDC; -extern VP8DecIdct VP8TransformDCUV; -extern VP8WHT VP8TransformWHT; - -// *dst is the destination block, with stride BPS. Boundary samples are -// assumed accessible when needed. -typedef void (*VP8PredFunc)(uint8_t* dst); -extern VP8PredFunc VP8PredLuma16[/* NUM_B_DC_MODES */]; -extern VP8PredFunc VP8PredChroma8[/* NUM_B_DC_MODES */]; -extern VP8PredFunc VP8PredLuma4[/* NUM_BMODES */]; - -// clipping tables (for filtering) -extern const int8_t* const VP8ksclip1; // clips [-1020, 1020] to [-128, 127] -extern const int8_t* const VP8ksclip2; // clips [-112, 112] to [-16, 15] -extern const uint8_t* const VP8kclip1; // clips [-255,511] to [0,255] -extern const uint8_t* const VP8kabs0; // abs(x) for x in [-255,255] -// must be called first -void VP8InitClipTables(void); - -// simple filter (only for luma) -typedef void (*VP8SimpleFilterFunc)(uint8_t* p, int stride, int thresh); -extern VP8SimpleFilterFunc VP8SimpleVFilter16; -extern VP8SimpleFilterFunc VP8SimpleHFilter16; -extern VP8SimpleFilterFunc VP8SimpleVFilter16i; // filter 3 inner edges -extern VP8SimpleFilterFunc VP8SimpleHFilter16i; - -// regular filter (on both macroblock edges and inner edges) -typedef void (*VP8LumaFilterFunc)(uint8_t* luma, int stride, - int thresh, int ithresh, int hev_t); -typedef void (*VP8ChromaFilterFunc)(uint8_t* u, uint8_t* v, int stride, - int thresh, int ithresh, int hev_t); -// on outer edge -extern VP8LumaFilterFunc VP8VFilter16; -extern VP8LumaFilterFunc VP8HFilter16; -extern VP8ChromaFilterFunc VP8VFilter8; -extern VP8ChromaFilterFunc VP8HFilter8; - -// on inner edge -extern VP8LumaFilterFunc VP8VFilter16i; // filtering 3 inner edges altogether -extern VP8LumaFilterFunc VP8HFilter16i; -extern VP8ChromaFilterFunc VP8VFilter8i; // filtering u and v altogether -extern VP8ChromaFilterFunc VP8HFilter8i; - -// Dithering. Combines dithering values (centered around 128) with dst[], -// according to: dst[] = clip(dst[] + (((dither[]-128) + 8) >> 4) -#define VP8_DITHER_DESCALE 4 -#define VP8_DITHER_DESCALE_ROUNDER (1 << (VP8_DITHER_DESCALE - 1)) -#define VP8_DITHER_AMP_BITS 7 -#define VP8_DITHER_AMP_CENTER (1 << VP8_DITHER_AMP_BITS) -extern void (*VP8DitherCombine8x8)(const uint8_t* dither, uint8_t* dst, - int dst_stride); - -// must be called before anything using the above -void VP8DspInit(void); - -//------------------------------------------------------------------------------ -// WebP I/O - -#define FANCY_UPSAMPLING // undefined to remove fancy upsampling support - -// Convert a pair of y/u/v lines together to the output rgb/a colorspace. -// bottom_y can be NULL if only one line of output is needed (at top/bottom). -typedef void (*WebPUpsampleLinePairFunc)( - const uint8_t* top_y, const uint8_t* bottom_y, - const uint8_t* top_u, const uint8_t* top_v, - const uint8_t* cur_u, const uint8_t* cur_v, - uint8_t* top_dst, uint8_t* bottom_dst, int len); - -#ifdef FANCY_UPSAMPLING - -// Fancy upsampling functions to convert YUV to RGB(A) modes -extern WebPUpsampleLinePairFunc WebPUpsamplers[/* MODE_LAST */]; - -#endif // FANCY_UPSAMPLING - -// Per-row point-sampling methods. -typedef void (*WebPSamplerRowFunc)(const uint8_t* y, - const uint8_t* u, const uint8_t* v, - uint8_t* dst, int len); -// Generic function to apply 'WebPSamplerRowFunc' to the whole plane: -void WebPSamplerProcessPlane(const uint8_t* y, int y_stride, - const uint8_t* u, const uint8_t* v, int uv_stride, - uint8_t* dst, int dst_stride, - int width, int height, WebPSamplerRowFunc func); - -// Sampling functions to convert rows of YUV to RGB(A) -extern WebPSamplerRowFunc WebPSamplers[/* MODE_LAST */]; - -// General function for converting two lines of ARGB or RGBA. -// 'alpha_is_last' should be true if 0xff000000 is stored in memory as -// as 0x00, 0x00, 0x00, 0xff (little endian). -WebPUpsampleLinePairFunc WebPGetLinePairConverter(int alpha_is_last); - -// YUV444->RGB converters -typedef void (*WebPYUV444Converter)(const uint8_t* y, - const uint8_t* u, const uint8_t* v, - uint8_t* dst, int len); - -extern WebPYUV444Converter WebPYUV444Converters[/* MODE_LAST */]; - -// Must be called before using the WebPUpsamplers[] (and for premultiplied -// colorspaces like rgbA, rgbA4444, etc) -void WebPInitUpsamplers(void); -// Must be called before using WebPSamplers[] -void WebPInitSamplers(void); -// Must be called before using WebPYUV444Converters[] -void WebPInitYUV444Converters(void); - -//------------------------------------------------------------------------------ -// ARGB -> YUV converters - -// Convert ARGB samples to luma Y. -extern void (*WebPConvertARGBToY)(const uint32_t* argb, uint8_t* y, int width); -// Convert ARGB samples to U/V with downsampling. do_store should be '1' for -// even lines and '0' for odd ones. 'src_width' is the original width, not -// the U/V one. -extern void (*WebPConvertARGBToUV)(const uint32_t* argb, uint8_t* u, uint8_t* v, - int src_width, int do_store); - -// Convert a row of accumulated (four-values) of rgba32 toward U/V -extern void (*WebPConvertRGBA32ToUV)(const uint16_t* rgb, - uint8_t* u, uint8_t* v, int width); - -// Convert RGB or BGR to Y -extern void (*WebPConvertRGB24ToY)(const uint8_t* rgb, uint8_t* y, int width); -extern void (*WebPConvertBGR24ToY)(const uint8_t* bgr, uint8_t* y, int width); - -// used for plain-C fallback. -extern void WebPConvertARGBToUV_C(const uint32_t* argb, uint8_t* u, uint8_t* v, - int src_width, int do_store); -extern void WebPConvertRGBA32ToUV_C(const uint16_t* rgb, - uint8_t* u, uint8_t* v, int width); - -// Must be called before using the above. -void WebPInitConvertARGBToYUV(void); - -//------------------------------------------------------------------------------ -// Rescaler - -struct WebPRescaler; - -// Import a row of data and save its contribution in the rescaler. -// 'channel' denotes the channel number to be imported. 'Expand' corresponds to -// the wrk->x_expand case. Otherwise, 'Shrink' is to be used. -typedef void (*WebPRescalerImportRowFunc)(struct WebPRescaler* const wrk, - const uint8_t* src); - -extern WebPRescalerImportRowFunc WebPRescalerImportRowExpand; -extern WebPRescalerImportRowFunc WebPRescalerImportRowShrink; - -// Export one row (starting at x_out position) from rescaler. -// 'Expand' corresponds to the wrk->y_expand case. -// Otherwise 'Shrink' is to be used -typedef void (*WebPRescalerExportRowFunc)(struct WebPRescaler* const wrk); -extern WebPRescalerExportRowFunc WebPRescalerExportRowExpand; -extern WebPRescalerExportRowFunc WebPRescalerExportRowShrink; - -// Plain-C implementation, as fall-back. -extern void WebPRescalerImportRowExpandC(struct WebPRescaler* const wrk, - const uint8_t* src); -extern void WebPRescalerImportRowShrinkC(struct WebPRescaler* const wrk, - const uint8_t* src); -extern void WebPRescalerExportRowExpandC(struct WebPRescaler* const wrk); -extern void WebPRescalerExportRowShrinkC(struct WebPRescaler* const wrk); - -// Main entry calls: -extern void WebPRescalerImportRow(struct WebPRescaler* const wrk, - const uint8_t* src); -// Export one row (starting at x_out position) from rescaler. -extern void WebPRescalerExportRow(struct WebPRescaler* const wrk); - -// Must be called first before using the above. -void WebPRescalerDspInit(void); - -//------------------------------------------------------------------------------ -// Utilities for processing transparent channel. - -// Apply alpha pre-multiply on an rgba, bgra or argb plane of size w * h. -// alpha_first should be 0 for argb, 1 for rgba or bgra (where alpha is last). -extern void (*WebPApplyAlphaMultiply)( - uint8_t* rgba, int alpha_first, int w, int h, int stride); - -// Same, buf specifically for RGBA4444 format -extern void (*WebPApplyAlphaMultiply4444)( - uint8_t* rgba4444, int w, int h, int stride); - -// Dispatch the values from alpha[] plane to the ARGB destination 'dst'. -// Returns true if alpha[] plane has non-trivial values different from 0xff. -extern int (*WebPDispatchAlpha)(const uint8_t* alpha, int alpha_stride, - int width, int height, - uint8_t* dst, int dst_stride); - -// Transfer packed 8b alpha[] values to green channel in dst[], zero'ing the -// A/R/B values. 'dst_stride' is the stride for dst[] in uint32_t units. -extern void (*WebPDispatchAlphaToGreen)(const uint8_t* alpha, int alpha_stride, - int width, int height, - uint32_t* dst, int dst_stride); - -// Extract the alpha values from 32b values in argb[] and pack them into alpha[] -// (this is the opposite of WebPDispatchAlpha). -// Returns true if there's only trivial 0xff alpha values. -extern int (*WebPExtractAlpha)(const uint8_t* argb, int argb_stride, - int width, int height, - uint8_t* alpha, int alpha_stride); - -// Pre-Multiply operation transforms x into x * A / 255 (where x=Y,R,G or B). -// Un-Multiply operation transforms x into x * 255 / A. - -// Pre-Multiply or Un-Multiply (if 'inverse' is true) argb values in a row. -extern void (*WebPMultARGBRow)(uint32_t* const ptr, int width, int inverse); - -// Same a WebPMultARGBRow(), but for several rows. -void WebPMultARGBRows(uint8_t* ptr, int stride, int width, int num_rows, - int inverse); - -// Same for a row of single values, with side alpha values. -extern void (*WebPMultRow)(uint8_t* const ptr, const uint8_t* const alpha, - int width, int inverse); - -// Same a WebPMultRow(), but for several 'num_rows' rows. -void WebPMultRows(uint8_t* ptr, int stride, - const uint8_t* alpha, int alpha_stride, - int width, int num_rows, int inverse); - -// Plain-C versions, used as fallback by some implementations. -void WebPMultRowC(uint8_t* const ptr, const uint8_t* const alpha, - int width, int inverse); -void WebPMultARGBRowC(uint32_t* const ptr, int width, int inverse); - -// To be called first before using the above. -void WebPInitAlphaProcessing(void); - -// ARGB packing function: a/r/g/b input is rgba or bgra order. -extern void (*VP8PackARGB)(const uint8_t* a, const uint8_t* r, - const uint8_t* g, const uint8_t* b, int len, - uint32_t* out); - -// RGB packing function. 'step' can be 3 or 4. r/g/b input is rgb or bgr order. -extern void (*VP8PackRGB)(const uint8_t* r, const uint8_t* g, const uint8_t* b, - int len, int step, uint32_t* out); - -// To be called first before using the above. -void VP8EncDspARGBInit(void); - -//------------------------------------------------------------------------------ -// Filter functions - -typedef enum { // Filter types. - WEBP_FILTER_NONE = 0, - WEBP_FILTER_HORIZONTAL, - WEBP_FILTER_VERTICAL, - WEBP_FILTER_GRADIENT, - WEBP_FILTER_LAST = WEBP_FILTER_GRADIENT + 1, // end marker - WEBP_FILTER_BEST, // meta-types - WEBP_FILTER_FAST -} WEBP_FILTER_TYPE; - -typedef void (*WebPFilterFunc)(const uint8_t* in, int width, int height, - int stride, uint8_t* out); -// In-place un-filtering. -// Warning! 'prev_line' pointer can be equal to 'cur_line' or 'preds'. -typedef void (*WebPUnfilterFunc)(const uint8_t* prev_line, const uint8_t* preds, - uint8_t* cur_line, int width); - -// Filter the given data using the given predictor. -// 'in' corresponds to a 2-dimensional pixel array of size (stride * height) -// in raster order. -// 'stride' is number of bytes per scan line (with possible padding). -// 'out' should be pre-allocated. -extern WebPFilterFunc WebPFilters[WEBP_FILTER_LAST]; - -// In-place reconstruct the original data from the given filtered data. -// The reconstruction will be done for 'num_rows' rows starting from 'row' -// (assuming rows upto 'row - 1' are already reconstructed). -extern WebPUnfilterFunc WebPUnfilters[WEBP_FILTER_LAST]; - -// To be called first before using the above. -void VP8FiltersInit(void); - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_DSP_DSP_H_ */ diff --git a/drivers/webp/dsp/enc.c b/drivers/webp/dsp/enc.c deleted file mode 100644 index f639f5570c..0000000000 --- a/drivers/webp/dsp/enc.c +++ /dev/null @@ -1,863 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Speed-critical encoding functions. -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> -#include <stdlib.h> // for abs() - -#include "./dsp.h" -#include "../enc/vp8enci.h" - -static WEBP_INLINE uint8_t clip_8b(int v) { - return (!(v & ~0xff)) ? v : (v < 0) ? 0 : 255; -} - -static WEBP_INLINE int clip_max(int v, int max) { - return (v > max) ? max : v; -} - -//------------------------------------------------------------------------------ -// Compute susceptibility based on DCT-coeff histograms: -// the higher, the "easier" the macroblock is to compress. - -const int VP8DspScan[16 + 4 + 4] = { - // Luma - 0 + 0 * BPS, 4 + 0 * BPS, 8 + 0 * BPS, 12 + 0 * BPS, - 0 + 4 * BPS, 4 + 4 * BPS, 8 + 4 * BPS, 12 + 4 * BPS, - 0 + 8 * BPS, 4 + 8 * BPS, 8 + 8 * BPS, 12 + 8 * BPS, - 0 + 12 * BPS, 4 + 12 * BPS, 8 + 12 * BPS, 12 + 12 * BPS, - - 0 + 0 * BPS, 4 + 0 * BPS, 0 + 4 * BPS, 4 + 4 * BPS, // U - 8 + 0 * BPS, 12 + 0 * BPS, 8 + 4 * BPS, 12 + 4 * BPS // V -}; - -// general-purpose util function -void VP8SetHistogramData(const int distribution[MAX_COEFF_THRESH + 1], - VP8Histogram* const histo) { - int max_value = 0, last_non_zero = 1; - int k; - for (k = 0; k <= MAX_COEFF_THRESH; ++k) { - const int value = distribution[k]; - if (value > 0) { - if (value > max_value) max_value = value; - last_non_zero = k; - } - } - histo->max_value = max_value; - histo->last_non_zero = last_non_zero; -} - -static void CollectHistogram(const uint8_t* ref, const uint8_t* pred, - int start_block, int end_block, - VP8Histogram* const histo) { - int j; - int distribution[MAX_COEFF_THRESH + 1] = { 0 }; - for (j = start_block; j < end_block; ++j) { - int k; - int16_t out[16]; - - VP8FTransform(ref + VP8DspScan[j], pred + VP8DspScan[j], out); - - // Convert coefficients to bin. - for (k = 0; k < 16; ++k) { - const int v = abs(out[k]) >> 3; - const int clipped_value = clip_max(v, MAX_COEFF_THRESH); - ++distribution[clipped_value]; - } - } - VP8SetHistogramData(distribution, histo); -} - -//------------------------------------------------------------------------------ -// run-time tables (~4k) - -static uint8_t clip1[255 + 510 + 1]; // clips [-255,510] to [0,255] - -// We declare this variable 'volatile' to prevent instruction reordering -// and make sure it's set to true _last_ (so as to be thread-safe) -static volatile int tables_ok = 0; - -static WEBP_TSAN_IGNORE_FUNCTION void InitTables(void) { - if (!tables_ok) { - int i; - for (i = -255; i <= 255 + 255; ++i) { - clip1[255 + i] = clip_8b(i); - } - tables_ok = 1; - } -} - - -//------------------------------------------------------------------------------ -// Transforms (Paragraph 14.4) - -#define STORE(x, y, v) \ - dst[(x) + (y) * BPS] = clip_8b(ref[(x) + (y) * BPS] + ((v) >> 3)) - -static const int kC1 = 20091 + (1 << 16); -static const int kC2 = 35468; -#define MUL(a, b) (((a) * (b)) >> 16) - -static WEBP_INLINE void ITransformOne(const uint8_t* ref, const int16_t* in, - uint8_t* dst) { - int C[4 * 4], *tmp; - int i; - tmp = C; - for (i = 0; i < 4; ++i) { // vertical pass - const int a = in[0] + in[8]; - const int b = in[0] - in[8]; - const int c = MUL(in[4], kC2) - MUL(in[12], kC1); - const int d = MUL(in[4], kC1) + MUL(in[12], kC2); - tmp[0] = a + d; - tmp[1] = b + c; - tmp[2] = b - c; - tmp[3] = a - d; - tmp += 4; - in++; - } - - tmp = C; - for (i = 0; i < 4; ++i) { // horizontal pass - const int dc = tmp[0] + 4; - const int a = dc + tmp[8]; - const int b = dc - tmp[8]; - const int c = MUL(tmp[4], kC2) - MUL(tmp[12], kC1); - const int d = MUL(tmp[4], kC1) + MUL(tmp[12], kC2); - STORE(0, i, a + d); - STORE(1, i, b + c); - STORE(2, i, b - c); - STORE(3, i, a - d); - tmp++; - } -} - -static void ITransform(const uint8_t* ref, const int16_t* in, uint8_t* dst, - int do_two) { - ITransformOne(ref, in, dst); - if (do_two) { - ITransformOne(ref + 4, in + 16, dst + 4); - } -} - -static void FTransform(const uint8_t* src, const uint8_t* ref, int16_t* out) { - int i; - int tmp[16]; - for (i = 0; i < 4; ++i, src += BPS, ref += BPS) { - const int d0 = src[0] - ref[0]; // 9bit dynamic range ([-255,255]) - const int d1 = src[1] - ref[1]; - const int d2 = src[2] - ref[2]; - const int d3 = src[3] - ref[3]; - const int a0 = (d0 + d3); // 10b [-510,510] - const int a1 = (d1 + d2); - const int a2 = (d1 - d2); - const int a3 = (d0 - d3); - tmp[0 + i * 4] = (a0 + a1) * 8; // 14b [-8160,8160] - tmp[1 + i * 4] = (a2 * 2217 + a3 * 5352 + 1812) >> 9; // [-7536,7542] - tmp[2 + i * 4] = (a0 - a1) * 8; - tmp[3 + i * 4] = (a3 * 2217 - a2 * 5352 + 937) >> 9; - } - for (i = 0; i < 4; ++i) { - const int a0 = (tmp[0 + i] + tmp[12 + i]); // 15b - const int a1 = (tmp[4 + i] + tmp[ 8 + i]); - const int a2 = (tmp[4 + i] - tmp[ 8 + i]); - const int a3 = (tmp[0 + i] - tmp[12 + i]); - out[0 + i] = (a0 + a1 + 7) >> 4; // 12b - out[4 + i] = ((a2 * 2217 + a3 * 5352 + 12000) >> 16) + (a3 != 0); - out[8 + i] = (a0 - a1 + 7) >> 4; - out[12+ i] = ((a3 * 2217 - a2 * 5352 + 51000) >> 16); - } -} - -static void FTransform2(const uint8_t* src, const uint8_t* ref, int16_t* out) { - VP8FTransform(src, ref, out); - VP8FTransform(src + 4, ref + 4, out + 16); -} - -static void FTransformWHT(const int16_t* in, int16_t* out) { - // input is 12b signed - int32_t tmp[16]; - int i; - for (i = 0; i < 4; ++i, in += 64) { - const int a0 = (in[0 * 16] + in[2 * 16]); // 13b - const int a1 = (in[1 * 16] + in[3 * 16]); - const int a2 = (in[1 * 16] - in[3 * 16]); - const int a3 = (in[0 * 16] - in[2 * 16]); - tmp[0 + i * 4] = a0 + a1; // 14b - tmp[1 + i * 4] = a3 + a2; - tmp[2 + i * 4] = a3 - a2; - tmp[3 + i * 4] = a0 - a1; - } - for (i = 0; i < 4; ++i) { - const int a0 = (tmp[0 + i] + tmp[8 + i]); // 15b - const int a1 = (tmp[4 + i] + tmp[12+ i]); - const int a2 = (tmp[4 + i] - tmp[12+ i]); - const int a3 = (tmp[0 + i] - tmp[8 + i]); - const int b0 = a0 + a1; // 16b - const int b1 = a3 + a2; - const int b2 = a3 - a2; - const int b3 = a0 - a1; - out[ 0 + i] = b0 >> 1; // 15b - out[ 4 + i] = b1 >> 1; - out[ 8 + i] = b2 >> 1; - out[12 + i] = b3 >> 1; - } -} - -#undef MUL -#undef STORE - -//------------------------------------------------------------------------------ -// Intra predictions - -static WEBP_INLINE void Fill(uint8_t* dst, int value, int size) { - int j; - for (j = 0; j < size; ++j) { - memset(dst + j * BPS, value, size); - } -} - -static WEBP_INLINE void VerticalPred(uint8_t* dst, - const uint8_t* top, int size) { - int j; - if (top != NULL) { - for (j = 0; j < size; ++j) memcpy(dst + j * BPS, top, size); - } else { - Fill(dst, 127, size); - } -} - -static WEBP_INLINE void HorizontalPred(uint8_t* dst, - const uint8_t* left, int size) { - if (left != NULL) { - int j; - for (j = 0; j < size; ++j) { - memset(dst + j * BPS, left[j], size); - } - } else { - Fill(dst, 129, size); - } -} - -static WEBP_INLINE void TrueMotion(uint8_t* dst, const uint8_t* left, - const uint8_t* top, int size) { - int y; - if (left != NULL) { - if (top != NULL) { - const uint8_t* const clip = clip1 + 255 - left[-1]; - for (y = 0; y < size; ++y) { - const uint8_t* const clip_table = clip + left[y]; - int x; - for (x = 0; x < size; ++x) { - dst[x] = clip_table[top[x]]; - } - dst += BPS; - } - } else { - HorizontalPred(dst, left, size); - } - } else { - // true motion without left samples (hence: with default 129 value) - // is equivalent to VE prediction where you just copy the top samples. - // Note that if top samples are not available, the default value is - // then 129, and not 127 as in the VerticalPred case. - if (top != NULL) { - VerticalPred(dst, top, size); - } else { - Fill(dst, 129, size); - } - } -} - -static WEBP_INLINE void DCMode(uint8_t* dst, const uint8_t* left, - const uint8_t* top, - int size, int round, int shift) { - int DC = 0; - int j; - if (top != NULL) { - for (j = 0; j < size; ++j) DC += top[j]; - if (left != NULL) { // top and left present - for (j = 0; j < size; ++j) DC += left[j]; - } else { // top, but no left - DC += DC; - } - DC = (DC + round) >> shift; - } else if (left != NULL) { // left but no top - for (j = 0; j < size; ++j) DC += left[j]; - DC += DC; - DC = (DC + round) >> shift; - } else { // no top, no left, nothing. - DC = 0x80; - } - Fill(dst, DC, size); -} - -//------------------------------------------------------------------------------ -// Chroma 8x8 prediction (paragraph 12.2) - -static void IntraChromaPreds(uint8_t* dst, const uint8_t* left, - const uint8_t* top) { - // U block - DCMode(C8DC8 + dst, left, top, 8, 8, 4); - VerticalPred(C8VE8 + dst, top, 8); - HorizontalPred(C8HE8 + dst, left, 8); - TrueMotion(C8TM8 + dst, left, top, 8); - // V block - dst += 8; - if (top != NULL) top += 8; - if (left != NULL) left += 16; - DCMode(C8DC8 + dst, left, top, 8, 8, 4); - VerticalPred(C8VE8 + dst, top, 8); - HorizontalPred(C8HE8 + dst, left, 8); - TrueMotion(C8TM8 + dst, left, top, 8); -} - -//------------------------------------------------------------------------------ -// luma 16x16 prediction (paragraph 12.3) - -static void Intra16Preds(uint8_t* dst, - const uint8_t* left, const uint8_t* top) { - DCMode(I16DC16 + dst, left, top, 16, 16, 5); - VerticalPred(I16VE16 + dst, top, 16); - HorizontalPred(I16HE16 + dst, left, 16); - TrueMotion(I16TM16 + dst, left, top, 16); -} - -//------------------------------------------------------------------------------ -// luma 4x4 prediction - -#define DST(x, y) dst[(x) + (y) * BPS] -#define AVG3(a, b, c) (((a) + 2 * (b) + (c) + 2) >> 2) -#define AVG2(a, b) (((a) + (b) + 1) >> 1) - -static void VE4(uint8_t* dst, const uint8_t* top) { // vertical - const uint8_t vals[4] = { - AVG3(top[-1], top[0], top[1]), - AVG3(top[ 0], top[1], top[2]), - AVG3(top[ 1], top[2], top[3]), - AVG3(top[ 2], top[3], top[4]) - }; - int i; - for (i = 0; i < 4; ++i) { - memcpy(dst + i * BPS, vals, 4); - } -} - -static void HE4(uint8_t* dst, const uint8_t* top) { // horizontal - const int X = top[-1]; - const int I = top[-2]; - const int J = top[-3]; - const int K = top[-4]; - const int L = top[-5]; - WebPUint32ToMem(dst + 0 * BPS, 0x01010101U * AVG3(X, I, J)); - WebPUint32ToMem(dst + 1 * BPS, 0x01010101U * AVG3(I, J, K)); - WebPUint32ToMem(dst + 2 * BPS, 0x01010101U * AVG3(J, K, L)); - WebPUint32ToMem(dst + 3 * BPS, 0x01010101U * AVG3(K, L, L)); -} - -static void DC4(uint8_t* dst, const uint8_t* top) { - uint32_t dc = 4; - int i; - for (i = 0; i < 4; ++i) dc += top[i] + top[-5 + i]; - Fill(dst, dc >> 3, 4); -} - -static void RD4(uint8_t* dst, const uint8_t* top) { - const int X = top[-1]; - const int I = top[-2]; - const int J = top[-3]; - const int K = top[-4]; - const int L = top[-5]; - const int A = top[0]; - const int B = top[1]; - const int C = top[2]; - const int D = top[3]; - DST(0, 3) = AVG3(J, K, L); - DST(0, 2) = DST(1, 3) = AVG3(I, J, K); - DST(0, 1) = DST(1, 2) = DST(2, 3) = AVG3(X, I, J); - DST(0, 0) = DST(1, 1) = DST(2, 2) = DST(3, 3) = AVG3(A, X, I); - DST(1, 0) = DST(2, 1) = DST(3, 2) = AVG3(B, A, X); - DST(2, 0) = DST(3, 1) = AVG3(C, B, A); - DST(3, 0) = AVG3(D, C, B); -} - -static void LD4(uint8_t* dst, const uint8_t* top) { - const int A = top[0]; - const int B = top[1]; - const int C = top[2]; - const int D = top[3]; - const int E = top[4]; - const int F = top[5]; - const int G = top[6]; - const int H = top[7]; - DST(0, 0) = AVG3(A, B, C); - DST(1, 0) = DST(0, 1) = AVG3(B, C, D); - DST(2, 0) = DST(1, 1) = DST(0, 2) = AVG3(C, D, E); - DST(3, 0) = DST(2, 1) = DST(1, 2) = DST(0, 3) = AVG3(D, E, F); - DST(3, 1) = DST(2, 2) = DST(1, 3) = AVG3(E, F, G); - DST(3, 2) = DST(2, 3) = AVG3(F, G, H); - DST(3, 3) = AVG3(G, H, H); -} - -static void VR4(uint8_t* dst, const uint8_t* top) { - const int X = top[-1]; - const int I = top[-2]; - const int J = top[-3]; - const int K = top[-4]; - const int A = top[0]; - const int B = top[1]; - const int C = top[2]; - const int D = top[3]; - DST(0, 0) = DST(1, 2) = AVG2(X, A); - DST(1, 0) = DST(2, 2) = AVG2(A, B); - DST(2, 0) = DST(3, 2) = AVG2(B, C); - DST(3, 0) = AVG2(C, D); - - DST(0, 3) = AVG3(K, J, I); - DST(0, 2) = AVG3(J, I, X); - DST(0, 1) = DST(1, 3) = AVG3(I, X, A); - DST(1, 1) = DST(2, 3) = AVG3(X, A, B); - DST(2, 1) = DST(3, 3) = AVG3(A, B, C); - DST(3, 1) = AVG3(B, C, D); -} - -static void VL4(uint8_t* dst, const uint8_t* top) { - const int A = top[0]; - const int B = top[1]; - const int C = top[2]; - const int D = top[3]; - const int E = top[4]; - const int F = top[5]; - const int G = top[6]; - const int H = top[7]; - DST(0, 0) = AVG2(A, B); - DST(1, 0) = DST(0, 2) = AVG2(B, C); - DST(2, 0) = DST(1, 2) = AVG2(C, D); - DST(3, 0) = DST(2, 2) = AVG2(D, E); - - DST(0, 1) = AVG3(A, B, C); - DST(1, 1) = DST(0, 3) = AVG3(B, C, D); - DST(2, 1) = DST(1, 3) = AVG3(C, D, E); - DST(3, 1) = DST(2, 3) = AVG3(D, E, F); - DST(3, 2) = AVG3(E, F, G); - DST(3, 3) = AVG3(F, G, H); -} - -static void HU4(uint8_t* dst, const uint8_t* top) { - const int I = top[-2]; - const int J = top[-3]; - const int K = top[-4]; - const int L = top[-5]; - DST(0, 0) = AVG2(I, J); - DST(2, 0) = DST(0, 1) = AVG2(J, K); - DST(2, 1) = DST(0, 2) = AVG2(K, L); - DST(1, 0) = AVG3(I, J, K); - DST(3, 0) = DST(1, 1) = AVG3(J, K, L); - DST(3, 1) = DST(1, 2) = AVG3(K, L, L); - DST(3, 2) = DST(2, 2) = - DST(0, 3) = DST(1, 3) = DST(2, 3) = DST(3, 3) = L; -} - -static void HD4(uint8_t* dst, const uint8_t* top) { - const int X = top[-1]; - const int I = top[-2]; - const int J = top[-3]; - const int K = top[-4]; - const int L = top[-5]; - const int A = top[0]; - const int B = top[1]; - const int C = top[2]; - - DST(0, 0) = DST(2, 1) = AVG2(I, X); - DST(0, 1) = DST(2, 2) = AVG2(J, I); - DST(0, 2) = DST(2, 3) = AVG2(K, J); - DST(0, 3) = AVG2(L, K); - - DST(3, 0) = AVG3(A, B, C); - DST(2, 0) = AVG3(X, A, B); - DST(1, 0) = DST(3, 1) = AVG3(I, X, A); - DST(1, 1) = DST(3, 2) = AVG3(J, I, X); - DST(1, 2) = DST(3, 3) = AVG3(K, J, I); - DST(1, 3) = AVG3(L, K, J); -} - -static void TM4(uint8_t* dst, const uint8_t* top) { - int x, y; - const uint8_t* const clip = clip1 + 255 - top[-1]; - for (y = 0; y < 4; ++y) { - const uint8_t* const clip_table = clip + top[-2 - y]; - for (x = 0; x < 4; ++x) { - dst[x] = clip_table[top[x]]; - } - dst += BPS; - } -} - -#undef DST -#undef AVG3 -#undef AVG2 - -// Left samples are top[-5 .. -2], top_left is top[-1], top are -// located at top[0..3], and top right is top[4..7] -static void Intra4Preds(uint8_t* dst, const uint8_t* top) { - DC4(I4DC4 + dst, top); - TM4(I4TM4 + dst, top); - VE4(I4VE4 + dst, top); - HE4(I4HE4 + dst, top); - RD4(I4RD4 + dst, top); - VR4(I4VR4 + dst, top); - LD4(I4LD4 + dst, top); - VL4(I4VL4 + dst, top); - HD4(I4HD4 + dst, top); - HU4(I4HU4 + dst, top); -} - -//------------------------------------------------------------------------------ -// Metric - -static WEBP_INLINE int GetSSE(const uint8_t* a, const uint8_t* b, - int w, int h) { - int count = 0; - int y, x; - for (y = 0; y < h; ++y) { - for (x = 0; x < w; ++x) { - const int diff = (int)a[x] - b[x]; - count += diff * diff; - } - a += BPS; - b += BPS; - } - return count; -} - -static int SSE16x16(const uint8_t* a, const uint8_t* b) { - return GetSSE(a, b, 16, 16); -} -static int SSE16x8(const uint8_t* a, const uint8_t* b) { - return GetSSE(a, b, 16, 8); -} -static int SSE8x8(const uint8_t* a, const uint8_t* b) { - return GetSSE(a, b, 8, 8); -} -static int SSE4x4(const uint8_t* a, const uint8_t* b) { - return GetSSE(a, b, 4, 4); -} - -//------------------------------------------------------------------------------ -// Texture distortion -// -// We try to match the spectral content (weighted) between source and -// reconstructed samples. - -// Hadamard transform -// Returns the weighted sum of the absolute value of transformed coefficients. -// w[] contains a row-major 4 by 4 symmetric matrix. -static int TTransform(const uint8_t* in, const uint16_t* w) { - int sum = 0; - int tmp[16]; - int i; - // horizontal pass - for (i = 0; i < 4; ++i, in += BPS) { - const int a0 = in[0] + in[2]; - const int a1 = in[1] + in[3]; - const int a2 = in[1] - in[3]; - const int a3 = in[0] - in[2]; - tmp[0 + i * 4] = a0 + a1; - tmp[1 + i * 4] = a3 + a2; - tmp[2 + i * 4] = a3 - a2; - tmp[3 + i * 4] = a0 - a1; - } - // vertical pass - for (i = 0; i < 4; ++i, ++w) { - const int a0 = tmp[0 + i] + tmp[8 + i]; - const int a1 = tmp[4 + i] + tmp[12+ i]; - const int a2 = tmp[4 + i] - tmp[12+ i]; - const int a3 = tmp[0 + i] - tmp[8 + i]; - const int b0 = a0 + a1; - const int b1 = a3 + a2; - const int b2 = a3 - a2; - const int b3 = a0 - a1; - - sum += w[ 0] * abs(b0); - sum += w[ 4] * abs(b1); - sum += w[ 8] * abs(b2); - sum += w[12] * abs(b3); - } - return sum; -} - -static int Disto4x4(const uint8_t* const a, const uint8_t* const b, - const uint16_t* const w) { - const int sum1 = TTransform(a, w); - const int sum2 = TTransform(b, w); - return abs(sum2 - sum1) >> 5; -} - -static int Disto16x16(const uint8_t* const a, const uint8_t* const b, - const uint16_t* const w) { - int D = 0; - int x, y; - for (y = 0; y < 16 * BPS; y += 4 * BPS) { - for (x = 0; x < 16; x += 4) { - D += Disto4x4(a + x + y, b + x + y, w); - } - } - return D; -} - -//------------------------------------------------------------------------------ -// Quantization -// - -static const uint8_t kZigzag[16] = { - 0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15 -}; - -// Simple quantization -static int QuantizeBlock(int16_t in[16], int16_t out[16], - const VP8Matrix* const mtx) { - int last = -1; - int n; - for (n = 0; n < 16; ++n) { - const int j = kZigzag[n]; - const int sign = (in[j] < 0); - const uint32_t coeff = (sign ? -in[j] : in[j]) + mtx->sharpen_[j]; - if (coeff > mtx->zthresh_[j]) { - const uint32_t Q = mtx->q_[j]; - const uint32_t iQ = mtx->iq_[j]; - const uint32_t B = mtx->bias_[j]; - int level = QUANTDIV(coeff, iQ, B); - if (level > MAX_LEVEL) level = MAX_LEVEL; - if (sign) level = -level; - in[j] = level * (int)Q; - out[n] = level; - if (level) last = n; - } else { - out[n] = 0; - in[j] = 0; - } - } - return (last >= 0); -} - -static int Quantize2Blocks(int16_t in[32], int16_t out[32], - const VP8Matrix* const mtx) { - int nz; - nz = VP8EncQuantizeBlock(in + 0 * 16, out + 0 * 16, mtx) << 0; - nz |= VP8EncQuantizeBlock(in + 1 * 16, out + 1 * 16, mtx) << 1; - return nz; -} - -static int QuantizeBlockWHT(int16_t in[16], int16_t out[16], - const VP8Matrix* const mtx) { - int n, last = -1; - for (n = 0; n < 16; ++n) { - const int j = kZigzag[n]; - const int sign = (in[j] < 0); - const uint32_t coeff = sign ? -in[j] : in[j]; - assert(mtx->sharpen_[j] == 0); - if (coeff > mtx->zthresh_[j]) { - const uint32_t Q = mtx->q_[j]; - const uint32_t iQ = mtx->iq_[j]; - const uint32_t B = mtx->bias_[j]; - int level = QUANTDIV(coeff, iQ, B); - if (level > MAX_LEVEL) level = MAX_LEVEL; - if (sign) level = -level; - in[j] = level * (int)Q; - out[n] = level; - if (level) last = n; - } else { - out[n] = 0; - in[j] = 0; - } - } - return (last >= 0); -} - -//------------------------------------------------------------------------------ -// Block copy - -static WEBP_INLINE void Copy(const uint8_t* src, uint8_t* dst, int w, int h) { - int y; - for (y = 0; y < h; ++y) { - memcpy(dst, src, w); - src += BPS; - dst += BPS; - } -} - -static void Copy4x4(const uint8_t* src, uint8_t* dst) { - Copy(src, dst, 4, 4); -} - -static void Copy16x8(const uint8_t* src, uint8_t* dst) { - Copy(src, dst, 16, 8); -} - -//------------------------------------------------------------------------------ - -static void SSIMAccumulateClipped(const uint8_t* src1, int stride1, - const uint8_t* src2, int stride2, - int xo, int yo, int W, int H, - VP8DistoStats* const stats) { - const int ymin = (yo - VP8_SSIM_KERNEL < 0) ? 0 : yo - VP8_SSIM_KERNEL; - const int ymax = (yo + VP8_SSIM_KERNEL > H - 1) ? H - 1 - : yo + VP8_SSIM_KERNEL; - const int xmin = (xo - VP8_SSIM_KERNEL < 0) ? 0 : xo - VP8_SSIM_KERNEL; - const int xmax = (xo + VP8_SSIM_KERNEL > W - 1) ? W - 1 - : xo + VP8_SSIM_KERNEL; - int x, y; - src1 += ymin * stride1; - src2 += ymin * stride2; - for (y = ymin; y <= ymax; ++y, src1 += stride1, src2 += stride2) { - for (x = xmin; x <= xmax; ++x) { - const int s1 = src1[x]; - const int s2 = src2[x]; - stats->w += 1; - stats->xm += s1; - stats->ym += s2; - stats->xxm += s1 * s1; - stats->xym += s1 * s2; - stats->yym += s2 * s2; - } - } -} - -static void SSIMAccumulate(const uint8_t* src1, int stride1, - const uint8_t* src2, int stride2, - VP8DistoStats* const stats) { - int x, y; - for (y = 0; y <= 2 * VP8_SSIM_KERNEL; ++y, src1 += stride1, src2 += stride2) { - for (x = 0; x <= 2 * VP8_SSIM_KERNEL; ++x) { - const int s1 = src1[x]; - const int s2 = src2[x]; - stats->w += 1; - stats->xm += s1; - stats->ym += s2; - stats->xxm += s1 * s1; - stats->xym += s1 * s2; - stats->yym += s2 * s2; - } - } -} - -VP8SSIMAccumulateFunc VP8SSIMAccumulate; -VP8SSIMAccumulateClippedFunc VP8SSIMAccumulateClipped; - -static volatile VP8CPUInfo ssim_last_cpuinfo_used = - (VP8CPUInfo)&ssim_last_cpuinfo_used; - -WEBP_TSAN_IGNORE_FUNCTION void VP8SSIMDspInit(void) { - if (ssim_last_cpuinfo_used == VP8GetCPUInfo) return; - - VP8SSIMAccumulate = SSIMAccumulate; - VP8SSIMAccumulateClipped = SSIMAccumulateClipped; - - ssim_last_cpuinfo_used = VP8GetCPUInfo; -} - -//------------------------------------------------------------------------------ -// Initialization - -// Speed-critical function pointers. We have to initialize them to the default -// implementations within VP8EncDspInit(). -VP8CHisto VP8CollectHistogram; -VP8Idct VP8ITransform; -VP8Fdct VP8FTransform; -VP8Fdct VP8FTransform2; -VP8WHT VP8FTransformWHT; -VP8Intra4Preds VP8EncPredLuma4; -VP8IntraPreds VP8EncPredLuma16; -VP8IntraPreds VP8EncPredChroma8; -VP8Metric VP8SSE16x16; -VP8Metric VP8SSE8x8; -VP8Metric VP8SSE16x8; -VP8Metric VP8SSE4x4; -VP8WMetric VP8TDisto4x4; -VP8WMetric VP8TDisto16x16; -VP8QuantizeBlock VP8EncQuantizeBlock; -VP8Quantize2Blocks VP8EncQuantize2Blocks; -VP8QuantizeBlockWHT VP8EncQuantizeBlockWHT; -VP8BlockCopy VP8Copy4x4; -VP8BlockCopy VP8Copy16x8; - -extern void VP8EncDspInitSSE2(void); -extern void VP8EncDspInitSSE41(void); -extern void VP8EncDspInitAVX2(void); -extern void VP8EncDspInitNEON(void); -extern void VP8EncDspInitMIPS32(void); -extern void VP8EncDspInitMIPSdspR2(void); - -static volatile VP8CPUInfo enc_last_cpuinfo_used = - (VP8CPUInfo)&enc_last_cpuinfo_used; - -WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInit(void) { - if (enc_last_cpuinfo_used == VP8GetCPUInfo) return; - - VP8DspInit(); // common inverse transforms - InitTables(); - - // default C implementations - VP8CollectHistogram = CollectHistogram; - VP8ITransform = ITransform; - VP8FTransform = FTransform; - VP8FTransform2 = FTransform2; - VP8FTransformWHT = FTransformWHT; - VP8EncPredLuma4 = Intra4Preds; - VP8EncPredLuma16 = Intra16Preds; - VP8EncPredChroma8 = IntraChromaPreds; - VP8SSE16x16 = SSE16x16; - VP8SSE8x8 = SSE8x8; - VP8SSE16x8 = SSE16x8; - VP8SSE4x4 = SSE4x4; - VP8TDisto4x4 = Disto4x4; - VP8TDisto16x16 = Disto16x16; - VP8EncQuantizeBlock = QuantizeBlock; - VP8EncQuantize2Blocks = Quantize2Blocks; - VP8EncQuantizeBlockWHT = QuantizeBlockWHT; - VP8Copy4x4 = Copy4x4; - VP8Copy16x8 = Copy16x8; - - // If defined, use CPUInfo() to overwrite some pointers with faster versions. - if (VP8GetCPUInfo != NULL) { -#if defined(WEBP_USE_SSE2) - if (VP8GetCPUInfo(kSSE2)) { - VP8EncDspInitSSE2(); -#if defined(WEBP_USE_SSE41) - if (VP8GetCPUInfo(kSSE4_1)) { - VP8EncDspInitSSE41(); - } -#endif - } -#endif -#if defined(WEBP_USE_AVX2) - if (VP8GetCPUInfo(kAVX2)) { - VP8EncDspInitAVX2(); - } -#endif -#if defined(WEBP_USE_NEON) - if (VP8GetCPUInfo(kNEON)) { - VP8EncDspInitNEON(); - } -#endif -#if defined(WEBP_USE_MIPS32) - if (VP8GetCPUInfo(kMIPS32)) { - VP8EncDspInitMIPS32(); - } -#endif -#if defined(WEBP_USE_MIPS_DSP_R2) - if (VP8GetCPUInfo(kMIPSdspR2)) { - VP8EncDspInitMIPSdspR2(); - } -#endif - } - enc_last_cpuinfo_used = VP8GetCPUInfo; -} diff --git a/drivers/webp/dsp/enc_avx2.c b/drivers/webp/dsp/enc_avx2.c deleted file mode 100644 index 93efb30b10..0000000000 --- a/drivers/webp/dsp/enc_avx2.c +++ /dev/null @@ -1,21 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// AVX2 version of speed-critical encoding functions. - -#include "./dsp.h" - -#if defined(WEBP_USE_AVX2) - -#endif // WEBP_USE_AVX2 - -//------------------------------------------------------------------------------ -// Entry point - -WEBP_DSP_INIT_STUB(VP8EncDspInitAVX2) diff --git a/drivers/webp/dsp/enc_mips32.c b/drivers/webp/dsp/enc_mips32.c deleted file mode 100644 index fd10143de9..0000000000 --- a/drivers/webp/dsp/enc_mips32.c +++ /dev/null @@ -1,672 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// MIPS version of speed-critical encoding functions. -// -// Author(s): Djordje Pesut (djordje.pesut@imgtec.com) -// Jovan Zelincevic (jovan.zelincevic@imgtec.com) -// Slobodan Prijic (slobodan.prijic@imgtec.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_MIPS32) - -#include "./mips_macro.h" -#include "../enc/vp8enci.h" -#include "../enc/cost.h" - -static const int kC1 = 20091 + (1 << 16); -static const int kC2 = 35468; - -// macro for one vertical pass in ITransformOne -// MUL macro inlined -// temp0..temp15 holds tmp[0]..tmp[15] -// A..D - offsets in bytes to load from in buffer -// TEMP0..TEMP3 - registers for corresponding tmp elements -// TEMP4..TEMP5 - temporary registers -#define VERTICAL_PASS(A, B, C, D, TEMP4, TEMP0, TEMP1, TEMP2, TEMP3) \ - "lh %[temp16], " #A "(%[temp20]) \n\t" \ - "lh %[temp18], " #B "(%[temp20]) \n\t" \ - "lh %[temp17], " #C "(%[temp20]) \n\t" \ - "lh %[temp19], " #D "(%[temp20]) \n\t" \ - "addu %[" #TEMP4 "], %[temp16], %[temp18] \n\t" \ - "subu %[temp16], %[temp16], %[temp18] \n\t" \ - "mul %[" #TEMP0 "], %[temp17], %[kC2] \n\t" \ - "mul %[temp18], %[temp19], %[kC1] \n\t" \ - "mul %[temp17], %[temp17], %[kC1] \n\t" \ - "mul %[temp19], %[temp19], %[kC2] \n\t" \ - "sra %[" #TEMP0 "], %[" #TEMP0 "], 16 \n\n" \ - "sra %[temp18], %[temp18], 16 \n\n" \ - "sra %[temp17], %[temp17], 16 \n\n" \ - "sra %[temp19], %[temp19], 16 \n\n" \ - "subu %[" #TEMP2 "], %[" #TEMP0 "], %[temp18] \n\t" \ - "addu %[" #TEMP3 "], %[temp17], %[temp19] \n\t" \ - "addu %[" #TEMP0 "], %[" #TEMP4 "], %[" #TEMP3 "] \n\t" \ - "addu %[" #TEMP1 "], %[temp16], %[" #TEMP2 "] \n\t" \ - "subu %[" #TEMP2 "], %[temp16], %[" #TEMP2 "] \n\t" \ - "subu %[" #TEMP3 "], %[" #TEMP4 "], %[" #TEMP3 "] \n\t" - -// macro for one horizontal pass in ITransformOne -// MUL and STORE macros inlined -// a = clip_8b(a) is replaced with: a = max(a, 0); a = min(a, 255) -// temp0..temp15 holds tmp[0]..tmp[15] -// A - offset in bytes to load from ref and store to dst buffer -// TEMP0, TEMP4, TEMP8 and TEMP12 - registers for corresponding tmp elements -#define HORIZONTAL_PASS(A, TEMP0, TEMP4, TEMP8, TEMP12) \ - "addiu %[" #TEMP0 "], %[" #TEMP0 "], 4 \n\t" \ - "addu %[temp16], %[" #TEMP0 "], %[" #TEMP8 "] \n\t" \ - "subu %[temp17], %[" #TEMP0 "], %[" #TEMP8 "] \n\t" \ - "mul %[" #TEMP0 "], %[" #TEMP4 "], %[kC2] \n\t" \ - "mul %[" #TEMP8 "], %[" #TEMP12 "], %[kC1] \n\t" \ - "mul %[" #TEMP4 "], %[" #TEMP4 "], %[kC1] \n\t" \ - "mul %[" #TEMP12 "], %[" #TEMP12 "], %[kC2] \n\t" \ - "sra %[" #TEMP0 "], %[" #TEMP0 "], 16 \n\t" \ - "sra %[" #TEMP8 "], %[" #TEMP8 "], 16 \n\t" \ - "sra %[" #TEMP4 "], %[" #TEMP4 "], 16 \n\t" \ - "sra %[" #TEMP12 "], %[" #TEMP12 "], 16 \n\t" \ - "subu %[temp18], %[" #TEMP0 "], %[" #TEMP8 "] \n\t" \ - "addu %[temp19], %[" #TEMP4 "], %[" #TEMP12 "] \n\t" \ - "addu %[" #TEMP0 "], %[temp16], %[temp19] \n\t" \ - "addu %[" #TEMP4 "], %[temp17], %[temp18] \n\t" \ - "subu %[" #TEMP8 "], %[temp17], %[temp18] \n\t" \ - "subu %[" #TEMP12 "], %[temp16], %[temp19] \n\t" \ - "lw %[temp20], 0(%[args]) \n\t" \ - "sra %[" #TEMP0 "], %[" #TEMP0 "], 3 \n\t" \ - "sra %[" #TEMP4 "], %[" #TEMP4 "], 3 \n\t" \ - "sra %[" #TEMP8 "], %[" #TEMP8 "], 3 \n\t" \ - "sra %[" #TEMP12 "], %[" #TEMP12 "], 3 \n\t" \ - "lbu %[temp16], 0+" XSTR(BPS) "*" #A "(%[temp20]) \n\t" \ - "lbu %[temp17], 1+" XSTR(BPS) "*" #A "(%[temp20]) \n\t" \ - "lbu %[temp18], 2+" XSTR(BPS) "*" #A "(%[temp20]) \n\t" \ - "lbu %[temp19], 3+" XSTR(BPS) "*" #A "(%[temp20]) \n\t" \ - "addu %[" #TEMP0 "], %[temp16], %[" #TEMP0 "] \n\t" \ - "addu %[" #TEMP4 "], %[temp17], %[" #TEMP4 "] \n\t" \ - "addu %[" #TEMP8 "], %[temp18], %[" #TEMP8 "] \n\t" \ - "addu %[" #TEMP12 "], %[temp19], %[" #TEMP12 "] \n\t" \ - "slt %[temp16], %[" #TEMP0 "], $zero \n\t" \ - "slt %[temp17], %[" #TEMP4 "], $zero \n\t" \ - "slt %[temp18], %[" #TEMP8 "], $zero \n\t" \ - "slt %[temp19], %[" #TEMP12 "], $zero \n\t" \ - "movn %[" #TEMP0 "], $zero, %[temp16] \n\t" \ - "movn %[" #TEMP4 "], $zero, %[temp17] \n\t" \ - "movn %[" #TEMP8 "], $zero, %[temp18] \n\t" \ - "movn %[" #TEMP12 "], $zero, %[temp19] \n\t" \ - "addiu %[temp20], $zero, 255 \n\t" \ - "slt %[temp16], %[" #TEMP0 "], %[temp20] \n\t" \ - "slt %[temp17], %[" #TEMP4 "], %[temp20] \n\t" \ - "slt %[temp18], %[" #TEMP8 "], %[temp20] \n\t" \ - "slt %[temp19], %[" #TEMP12 "], %[temp20] \n\t" \ - "movz %[" #TEMP0 "], %[temp20], %[temp16] \n\t" \ - "movz %[" #TEMP4 "], %[temp20], %[temp17] \n\t" \ - "lw %[temp16], 8(%[args]) \n\t" \ - "movz %[" #TEMP8 "], %[temp20], %[temp18] \n\t" \ - "movz %[" #TEMP12 "], %[temp20], %[temp19] \n\t" \ - "sb %[" #TEMP0 "], 0+" XSTR(BPS) "*" #A "(%[temp16]) \n\t" \ - "sb %[" #TEMP4 "], 1+" XSTR(BPS) "*" #A "(%[temp16]) \n\t" \ - "sb %[" #TEMP8 "], 2+" XSTR(BPS) "*" #A "(%[temp16]) \n\t" \ - "sb %[" #TEMP12 "], 3+" XSTR(BPS) "*" #A "(%[temp16]) \n\t" - -// Does one or two inverse transforms. -static WEBP_INLINE void ITransformOne(const uint8_t* ref, const int16_t* in, - uint8_t* dst) { - int temp0, temp1, temp2, temp3, temp4, temp5, temp6; - int temp7, temp8, temp9, temp10, temp11, temp12, temp13; - int temp14, temp15, temp16, temp17, temp18, temp19, temp20; - const int* args[3] = {(const int*)ref, (const int*)in, (const int*)dst}; - - __asm__ volatile( - "lw %[temp20], 4(%[args]) \n\t" - VERTICAL_PASS(0, 16, 8, 24, temp4, temp0, temp1, temp2, temp3) - VERTICAL_PASS(2, 18, 10, 26, temp8, temp4, temp5, temp6, temp7) - VERTICAL_PASS(4, 20, 12, 28, temp12, temp8, temp9, temp10, temp11) - VERTICAL_PASS(6, 22, 14, 30, temp20, temp12, temp13, temp14, temp15) - - HORIZONTAL_PASS(0, temp0, temp4, temp8, temp12) - HORIZONTAL_PASS(1, temp1, temp5, temp9, temp13) - HORIZONTAL_PASS(2, temp2, temp6, temp10, temp14) - HORIZONTAL_PASS(3, temp3, temp7, temp11, temp15) - - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8), - [temp9]"=&r"(temp9), [temp10]"=&r"(temp10), [temp11]"=&r"(temp11), - [temp12]"=&r"(temp12), [temp13]"=&r"(temp13), [temp14]"=&r"(temp14), - [temp15]"=&r"(temp15), [temp16]"=&r"(temp16), [temp17]"=&r"(temp17), - [temp18]"=&r"(temp18), [temp19]"=&r"(temp19), [temp20]"=&r"(temp20) - : [args]"r"(args), [kC1]"r"(kC1), [kC2]"r"(kC2) - : "memory", "hi", "lo" - ); -} - -static void ITransform(const uint8_t* ref, const int16_t* in, - uint8_t* dst, int do_two) { - ITransformOne(ref, in, dst); - if (do_two) { - ITransformOne(ref + 4, in + 16, dst + 4); - } -} - -#undef VERTICAL_PASS -#undef HORIZONTAL_PASS - -// macro for one pass through for loop in QuantizeBlock -// QUANTDIV macro inlined -// J - offset in bytes (kZigzag[n] * 2) -// K - offset in bytes (kZigzag[n] * 4) -// N - offset in bytes (n * 2) -#define QUANTIZE_ONE(J, K, N) \ - "lh %[temp0], " #J "(%[ppin]) \n\t" \ - "lhu %[temp1], " #J "(%[ppsharpen]) \n\t" \ - "lw %[temp2], " #K "(%[ppzthresh]) \n\t" \ - "sra %[sign], %[temp0], 15 \n\t" \ - "xor %[coeff], %[temp0], %[sign] \n\t" \ - "subu %[coeff], %[coeff], %[sign] \n\t" \ - "addu %[coeff], %[coeff], %[temp1] \n\t" \ - "slt %[temp4], %[temp2], %[coeff] \n\t" \ - "addiu %[temp5], $zero, 0 \n\t" \ - "addiu %[level], $zero, 0 \n\t" \ - "beqz %[temp4], 2f \n\t" \ - "lhu %[temp1], " #J "(%[ppiq]) \n\t" \ - "lw %[temp2], " #K "(%[ppbias]) \n\t" \ - "lhu %[temp3], " #J "(%[ppq]) \n\t" \ - "mul %[level], %[coeff], %[temp1] \n\t" \ - "addu %[level], %[level], %[temp2] \n\t" \ - "sra %[level], %[level], 17 \n\t" \ - "slt %[temp4], %[max_level], %[level] \n\t" \ - "movn %[level], %[max_level], %[temp4] \n\t" \ - "xor %[level], %[level], %[sign] \n\t" \ - "subu %[level], %[level], %[sign] \n\t" \ - "mul %[temp5], %[level], %[temp3] \n\t" \ -"2: \n\t" \ - "sh %[temp5], " #J "(%[ppin]) \n\t" \ - "sh %[level], " #N "(%[pout]) \n\t" - -static int QuantizeBlock(int16_t in[16], int16_t out[16], - const VP8Matrix* const mtx) { - int temp0, temp1, temp2, temp3, temp4, temp5; - int sign, coeff, level, i; - int max_level = MAX_LEVEL; - - int16_t* ppin = &in[0]; - int16_t* pout = &out[0]; - const uint16_t* ppsharpen = &mtx->sharpen_[0]; - const uint32_t* ppzthresh = &mtx->zthresh_[0]; - const uint16_t* ppq = &mtx->q_[0]; - const uint16_t* ppiq = &mtx->iq_[0]; - const uint32_t* ppbias = &mtx->bias_[0]; - - __asm__ volatile( - QUANTIZE_ONE( 0, 0, 0) - QUANTIZE_ONE( 2, 4, 2) - QUANTIZE_ONE( 8, 16, 4) - QUANTIZE_ONE(16, 32, 6) - QUANTIZE_ONE(10, 20, 8) - QUANTIZE_ONE( 4, 8, 10) - QUANTIZE_ONE( 6, 12, 12) - QUANTIZE_ONE(12, 24, 14) - QUANTIZE_ONE(18, 36, 16) - QUANTIZE_ONE(24, 48, 18) - QUANTIZE_ONE(26, 52, 20) - QUANTIZE_ONE(20, 40, 22) - QUANTIZE_ONE(14, 28, 24) - QUANTIZE_ONE(22, 44, 26) - QUANTIZE_ONE(28, 56, 28) - QUANTIZE_ONE(30, 60, 30) - - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), - [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), - [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [sign]"=&r"(sign), [coeff]"=&r"(coeff), - [level]"=&r"(level) - : [pout]"r"(pout), [ppin]"r"(ppin), - [ppiq]"r"(ppiq), [max_level]"r"(max_level), - [ppbias]"r"(ppbias), [ppzthresh]"r"(ppzthresh), - [ppsharpen]"r"(ppsharpen), [ppq]"r"(ppq) - : "memory", "hi", "lo" - ); - - // moved out from macro to increase possibility for earlier breaking - for (i = 15; i >= 0; i--) { - if (out[i]) return 1; - } - return 0; -} - -static int Quantize2Blocks(int16_t in[32], int16_t out[32], - const VP8Matrix* const mtx) { - int nz; - nz = QuantizeBlock(in + 0 * 16, out + 0 * 16, mtx) << 0; - nz |= QuantizeBlock(in + 1 * 16, out + 1 * 16, mtx) << 1; - return nz; -} - -#undef QUANTIZE_ONE - -// macro for one horizontal pass in Disto4x4 (TTransform) -// two calls of function TTransform are merged into single one -// A - offset in bytes to load from a and b buffers -// E..H - offsets in bytes to store first results to tmp buffer -// E1..H1 - offsets in bytes to store second results to tmp buffer -#define HORIZONTAL_PASS(A, E, F, G, H, E1, F1, G1, H1) \ - "lbu %[temp0], 0+" XSTR(BPS) "*" #A "(%[a]) \n\t" \ - "lbu %[temp1], 1+" XSTR(BPS) "*" #A "(%[a]) \n\t" \ - "lbu %[temp2], 2+" XSTR(BPS) "*" #A "(%[a]) \n\t" \ - "lbu %[temp3], 3+" XSTR(BPS) "*" #A "(%[a]) \n\t" \ - "lbu %[temp4], 0+" XSTR(BPS) "*" #A "(%[b]) \n\t" \ - "lbu %[temp5], 1+" XSTR(BPS) "*" #A "(%[b]) \n\t" \ - "lbu %[temp6], 2+" XSTR(BPS) "*" #A "(%[b]) \n\t" \ - "lbu %[temp7], 3+" XSTR(BPS) "*" #A "(%[b]) \n\t" \ - "addu %[temp8], %[temp0], %[temp2] \n\t" \ - "subu %[temp0], %[temp0], %[temp2] \n\t" \ - "addu %[temp2], %[temp1], %[temp3] \n\t" \ - "subu %[temp1], %[temp1], %[temp3] \n\t" \ - "addu %[temp3], %[temp4], %[temp6] \n\t" \ - "subu %[temp4], %[temp4], %[temp6] \n\t" \ - "addu %[temp6], %[temp5], %[temp7] \n\t" \ - "subu %[temp5], %[temp5], %[temp7] \n\t" \ - "addu %[temp7], %[temp8], %[temp2] \n\t" \ - "subu %[temp2], %[temp8], %[temp2] \n\t" \ - "addu %[temp8], %[temp0], %[temp1] \n\t" \ - "subu %[temp0], %[temp0], %[temp1] \n\t" \ - "addu %[temp1], %[temp3], %[temp6] \n\t" \ - "subu %[temp3], %[temp3], %[temp6] \n\t" \ - "addu %[temp6], %[temp4], %[temp5] \n\t" \ - "subu %[temp4], %[temp4], %[temp5] \n\t" \ - "sw %[temp7], " #E "(%[tmp]) \n\t" \ - "sw %[temp2], " #H "(%[tmp]) \n\t" \ - "sw %[temp8], " #F "(%[tmp]) \n\t" \ - "sw %[temp0], " #G "(%[tmp]) \n\t" \ - "sw %[temp1], " #E1 "(%[tmp]) \n\t" \ - "sw %[temp3], " #H1 "(%[tmp]) \n\t" \ - "sw %[temp6], " #F1 "(%[tmp]) \n\t" \ - "sw %[temp4], " #G1 "(%[tmp]) \n\t" - -// macro for one vertical pass in Disto4x4 (TTransform) -// two calls of function TTransform are merged into single one -// since only one accu is available in mips32r1 instruction set -// first is done second call of function TTransform and after -// that first one. -// const int sum1 = TTransform(a, w); -// const int sum2 = TTransform(b, w); -// return abs(sum2 - sum1) >> 5; -// (sum2 - sum1) is calculated with madds (sub2) and msubs (sub1) -// A..D - offsets in bytes to load first results from tmp buffer -// A1..D1 - offsets in bytes to load second results from tmp buffer -// E..H - offsets in bytes to load from w buffer -#define VERTICAL_PASS(A, B, C, D, A1, B1, C1, D1, E, F, G, H) \ - "lw %[temp0], " #A1 "(%[tmp]) \n\t" \ - "lw %[temp1], " #C1 "(%[tmp]) \n\t" \ - "lw %[temp2], " #B1 "(%[tmp]) \n\t" \ - "lw %[temp3], " #D1 "(%[tmp]) \n\t" \ - "addu %[temp8], %[temp0], %[temp1] \n\t" \ - "subu %[temp0], %[temp0], %[temp1] \n\t" \ - "addu %[temp1], %[temp2], %[temp3] \n\t" \ - "subu %[temp2], %[temp2], %[temp3] \n\t" \ - "addu %[temp3], %[temp8], %[temp1] \n\t" \ - "subu %[temp8], %[temp8], %[temp1] \n\t" \ - "addu %[temp1], %[temp0], %[temp2] \n\t" \ - "subu %[temp0], %[temp0], %[temp2] \n\t" \ - "sra %[temp4], %[temp3], 31 \n\t" \ - "sra %[temp5], %[temp1], 31 \n\t" \ - "sra %[temp6], %[temp0], 31 \n\t" \ - "sra %[temp7], %[temp8], 31 \n\t" \ - "xor %[temp3], %[temp3], %[temp4] \n\t" \ - "xor %[temp1], %[temp1], %[temp5] \n\t" \ - "xor %[temp0], %[temp0], %[temp6] \n\t" \ - "xor %[temp8], %[temp8], %[temp7] \n\t" \ - "subu %[temp3], %[temp3], %[temp4] \n\t" \ - "subu %[temp1], %[temp1], %[temp5] \n\t" \ - "subu %[temp0], %[temp0], %[temp6] \n\t" \ - "subu %[temp8], %[temp8], %[temp7] \n\t" \ - "lhu %[temp4], " #E "(%[w]) \n\t" \ - "lhu %[temp5], " #F "(%[w]) \n\t" \ - "lhu %[temp6], " #G "(%[w]) \n\t" \ - "lhu %[temp7], " #H "(%[w]) \n\t" \ - "madd %[temp4], %[temp3] \n\t" \ - "madd %[temp5], %[temp1] \n\t" \ - "madd %[temp6], %[temp0] \n\t" \ - "madd %[temp7], %[temp8] \n\t" \ - "lw %[temp0], " #A "(%[tmp]) \n\t" \ - "lw %[temp1], " #C "(%[tmp]) \n\t" \ - "lw %[temp2], " #B "(%[tmp]) \n\t" \ - "lw %[temp3], " #D "(%[tmp]) \n\t" \ - "addu %[temp8], %[temp0], %[temp1] \n\t" \ - "subu %[temp0], %[temp0], %[temp1] \n\t" \ - "addu %[temp1], %[temp2], %[temp3] \n\t" \ - "subu %[temp2], %[temp2], %[temp3] \n\t" \ - "addu %[temp3], %[temp8], %[temp1] \n\t" \ - "subu %[temp1], %[temp8], %[temp1] \n\t" \ - "addu %[temp8], %[temp0], %[temp2] \n\t" \ - "subu %[temp0], %[temp0], %[temp2] \n\t" \ - "sra %[temp2], %[temp3], 31 \n\t" \ - "xor %[temp3], %[temp3], %[temp2] \n\t" \ - "subu %[temp3], %[temp3], %[temp2] \n\t" \ - "msub %[temp4], %[temp3] \n\t" \ - "sra %[temp2], %[temp8], 31 \n\t" \ - "sra %[temp3], %[temp0], 31 \n\t" \ - "sra %[temp4], %[temp1], 31 \n\t" \ - "xor %[temp8], %[temp8], %[temp2] \n\t" \ - "xor %[temp0], %[temp0], %[temp3] \n\t" \ - "xor %[temp1], %[temp1], %[temp4] \n\t" \ - "subu %[temp8], %[temp8], %[temp2] \n\t" \ - "subu %[temp0], %[temp0], %[temp3] \n\t" \ - "subu %[temp1], %[temp1], %[temp4] \n\t" \ - "msub %[temp5], %[temp8] \n\t" \ - "msub %[temp6], %[temp0] \n\t" \ - "msub %[temp7], %[temp1] \n\t" - -static int Disto4x4(const uint8_t* const a, const uint8_t* const b, - const uint16_t* const w) { - int tmp[32]; - int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7, temp8; - - __asm__ volatile( - HORIZONTAL_PASS(0, 0, 4, 8, 12, 64, 68, 72, 76) - HORIZONTAL_PASS(1, 16, 20, 24, 28, 80, 84, 88, 92) - HORIZONTAL_PASS(2, 32, 36, 40, 44, 96, 100, 104, 108) - HORIZONTAL_PASS(3, 48, 52, 56, 60, 112, 116, 120, 124) - "mthi $zero \n\t" - "mtlo $zero \n\t" - VERTICAL_PASS( 0, 16, 32, 48, 64, 80, 96, 112, 0, 8, 16, 24) - VERTICAL_PASS( 4, 20, 36, 52, 68, 84, 100, 116, 2, 10, 18, 26) - VERTICAL_PASS( 8, 24, 40, 56, 72, 88, 104, 120, 4, 12, 20, 28) - VERTICAL_PASS(12, 28, 44, 60, 76, 92, 108, 124, 6, 14, 22, 30) - "mflo %[temp0] \n\t" - "sra %[temp1], %[temp0], 31 \n\t" - "xor %[temp0], %[temp0], %[temp1] \n\t" - "subu %[temp0], %[temp0], %[temp1] \n\t" - "sra %[temp0], %[temp0], 5 \n\t" - - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8) - : [a]"r"(a), [b]"r"(b), [w]"r"(w), [tmp]"r"(tmp) - : "memory", "hi", "lo" - ); - - return temp0; -} - -#undef VERTICAL_PASS -#undef HORIZONTAL_PASS - -static int Disto16x16(const uint8_t* const a, const uint8_t* const b, - const uint16_t* const w) { - int D = 0; - int x, y; - for (y = 0; y < 16 * BPS; y += 4 * BPS) { - for (x = 0; x < 16; x += 4) { - D += Disto4x4(a + x + y, b + x + y, w); - } - } - return D; -} - -// macro for one horizontal pass in FTransform -// temp0..temp15 holds tmp[0]..tmp[15] -// A - offset in bytes to load from src and ref buffers -// TEMP0..TEMP3 - registers for corresponding tmp elements -#define HORIZONTAL_PASS(A, TEMP0, TEMP1, TEMP2, TEMP3) \ - "lw %[" #TEMP1 "], 0(%[args]) \n\t" \ - "lw %[" #TEMP2 "], 4(%[args]) \n\t" \ - "lbu %[temp16], 0+" XSTR(BPS) "*" #A "(%[" #TEMP1 "]) \n\t" \ - "lbu %[temp17], 0+" XSTR(BPS) "*" #A "(%[" #TEMP2 "]) \n\t" \ - "lbu %[temp18], 1+" XSTR(BPS) "*" #A "(%[" #TEMP1 "]) \n\t" \ - "lbu %[temp19], 1+" XSTR(BPS) "*" #A "(%[" #TEMP2 "]) \n\t" \ - "subu %[temp20], %[temp16], %[temp17] \n\t" \ - "lbu %[temp16], 2+" XSTR(BPS) "*" #A "(%[" #TEMP1 "]) \n\t" \ - "lbu %[temp17], 2+" XSTR(BPS) "*" #A "(%[" #TEMP2 "]) \n\t" \ - "subu %[" #TEMP0 "], %[temp18], %[temp19] \n\t" \ - "lbu %[temp18], 3+" XSTR(BPS) "*" #A "(%[" #TEMP1 "]) \n\t" \ - "lbu %[temp19], 3+" XSTR(BPS) "*" #A "(%[" #TEMP2 "]) \n\t" \ - "subu %[" #TEMP1 "], %[temp16], %[temp17] \n\t" \ - "subu %[" #TEMP2 "], %[temp18], %[temp19] \n\t" \ - "addu %[" #TEMP3 "], %[temp20], %[" #TEMP2 "] \n\t" \ - "subu %[" #TEMP2 "], %[temp20], %[" #TEMP2 "] \n\t" \ - "addu %[temp20], %[" #TEMP0 "], %[" #TEMP1 "] \n\t" \ - "subu %[" #TEMP0 "], %[" #TEMP0 "], %[" #TEMP1 "] \n\t" \ - "mul %[temp16], %[" #TEMP2 "], %[c5352] \n\t" \ - "mul %[temp17], %[" #TEMP2 "], %[c2217] \n\t" \ - "mul %[temp18], %[" #TEMP0 "], %[c5352] \n\t" \ - "mul %[temp19], %[" #TEMP0 "], %[c2217] \n\t" \ - "addu %[" #TEMP1 "], %[" #TEMP3 "], %[temp20] \n\t" \ - "subu %[temp20], %[" #TEMP3 "], %[temp20] \n\t" \ - "sll %[" #TEMP0 "], %[" #TEMP1 "], 3 \n\t" \ - "sll %[" #TEMP2 "], %[temp20], 3 \n\t" \ - "addiu %[temp16], %[temp16], 1812 \n\t" \ - "addiu %[temp17], %[temp17], 937 \n\t" \ - "addu %[temp16], %[temp16], %[temp19] \n\t" \ - "subu %[temp17], %[temp17], %[temp18] \n\t" \ - "sra %[" #TEMP1 "], %[temp16], 9 \n\t" \ - "sra %[" #TEMP3 "], %[temp17], 9 \n\t" - -// macro for one vertical pass in FTransform -// temp0..temp15 holds tmp[0]..tmp[15] -// A..D - offsets in bytes to store to out buffer -// TEMP0, TEMP4, TEMP8 and TEMP12 - registers for corresponding tmp elements -#define VERTICAL_PASS(A, B, C, D, TEMP0, TEMP4, TEMP8, TEMP12) \ - "addu %[temp16], %[" #TEMP0 "], %[" #TEMP12 "] \n\t" \ - "subu %[temp19], %[" #TEMP0 "], %[" #TEMP12 "] \n\t" \ - "addu %[temp17], %[" #TEMP4 "], %[" #TEMP8 "] \n\t" \ - "subu %[temp18], %[" #TEMP4 "], %[" #TEMP8 "] \n\t" \ - "mul %[" #TEMP8 "], %[temp19], %[c2217] \n\t" \ - "mul %[" #TEMP12 "], %[temp18], %[c2217] \n\t" \ - "mul %[" #TEMP4 "], %[temp19], %[c5352] \n\t" \ - "mul %[temp18], %[temp18], %[c5352] \n\t" \ - "addiu %[temp16], %[temp16], 7 \n\t" \ - "addu %[" #TEMP0 "], %[temp16], %[temp17] \n\t" \ - "sra %[" #TEMP0 "], %[" #TEMP0 "], 4 \n\t" \ - "addu %[" #TEMP12 "], %[" #TEMP12 "], %[" #TEMP4 "] \n\t" \ - "subu %[" #TEMP4 "], %[temp16], %[temp17] \n\t" \ - "sra %[" #TEMP4 "], %[" #TEMP4 "], 4 \n\t" \ - "addiu %[" #TEMP8 "], %[" #TEMP8 "], 30000 \n\t" \ - "addiu %[" #TEMP12 "], %[" #TEMP12 "], 12000 \n\t" \ - "addiu %[" #TEMP8 "], %[" #TEMP8 "], 21000 \n\t" \ - "subu %[" #TEMP8 "], %[" #TEMP8 "], %[temp18] \n\t" \ - "sra %[" #TEMP12 "], %[" #TEMP12 "], 16 \n\t" \ - "sra %[" #TEMP8 "], %[" #TEMP8 "], 16 \n\t" \ - "addiu %[temp16], %[" #TEMP12 "], 1 \n\t" \ - "movn %[" #TEMP12 "], %[temp16], %[temp19] \n\t" \ - "sh %[" #TEMP0 "], " #A "(%[temp20]) \n\t" \ - "sh %[" #TEMP4 "], " #C "(%[temp20]) \n\t" \ - "sh %[" #TEMP8 "], " #D "(%[temp20]) \n\t" \ - "sh %[" #TEMP12 "], " #B "(%[temp20]) \n\t" - -static void FTransform(const uint8_t* src, const uint8_t* ref, int16_t* out) { - int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7, temp8; - int temp9, temp10, temp11, temp12, temp13, temp14, temp15, temp16; - int temp17, temp18, temp19, temp20; - const int c2217 = 2217; - const int c5352 = 5352; - const int* const args[3] = - { (const int*)src, (const int*)ref, (const int*)out }; - - __asm__ volatile( - HORIZONTAL_PASS(0, temp0, temp1, temp2, temp3) - HORIZONTAL_PASS(1, temp4, temp5, temp6, temp7) - HORIZONTAL_PASS(2, temp8, temp9, temp10, temp11) - HORIZONTAL_PASS(3, temp12, temp13, temp14, temp15) - "lw %[temp20], 8(%[args]) \n\t" - VERTICAL_PASS(0, 8, 16, 24, temp0, temp4, temp8, temp12) - VERTICAL_PASS(2, 10, 18, 26, temp1, temp5, temp9, temp13) - VERTICAL_PASS(4, 12, 20, 28, temp2, temp6, temp10, temp14) - VERTICAL_PASS(6, 14, 22, 30, temp3, temp7, temp11, temp15) - - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8), - [temp9]"=&r"(temp9), [temp10]"=&r"(temp10), [temp11]"=&r"(temp11), - [temp12]"=&r"(temp12), [temp13]"=&r"(temp13), [temp14]"=&r"(temp14), - [temp15]"=&r"(temp15), [temp16]"=&r"(temp16), [temp17]"=&r"(temp17), - [temp18]"=&r"(temp18), [temp19]"=&r"(temp19), [temp20]"=&r"(temp20) - : [args]"r"(args), [c2217]"r"(c2217), [c5352]"r"(c5352) - : "memory", "hi", "lo" - ); -} - -#undef VERTICAL_PASS -#undef HORIZONTAL_PASS - -#if !defined(WORK_AROUND_GCC) - -#define GET_SSE_INNER(A, B, C, D) \ - "lbu %[temp0], " #A "(%[a]) \n\t" \ - "lbu %[temp1], " #A "(%[b]) \n\t" \ - "lbu %[temp2], " #B "(%[a]) \n\t" \ - "lbu %[temp3], " #B "(%[b]) \n\t" \ - "lbu %[temp4], " #C "(%[a]) \n\t" \ - "lbu %[temp5], " #C "(%[b]) \n\t" \ - "lbu %[temp6], " #D "(%[a]) \n\t" \ - "lbu %[temp7], " #D "(%[b]) \n\t" \ - "subu %[temp0], %[temp0], %[temp1] \n\t" \ - "subu %[temp2], %[temp2], %[temp3] \n\t" \ - "subu %[temp4], %[temp4], %[temp5] \n\t" \ - "subu %[temp6], %[temp6], %[temp7] \n\t" \ - "madd %[temp0], %[temp0] \n\t" \ - "madd %[temp2], %[temp2] \n\t" \ - "madd %[temp4], %[temp4] \n\t" \ - "madd %[temp6], %[temp6] \n\t" - -#define GET_SSE(A, B, C, D) \ - GET_SSE_INNER(A, A + 1, A + 2, A + 3) \ - GET_SSE_INNER(B, B + 1, B + 2, B + 3) \ - GET_SSE_INNER(C, C + 1, C + 2, C + 3) \ - GET_SSE_INNER(D, D + 1, D + 2, D + 3) - -static int SSE16x16(const uint8_t* a, const uint8_t* b) { - int count; - int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7; - - __asm__ volatile( - "mult $zero, $zero \n\t" - - GET_SSE( 0 * BPS, 4 + 0 * BPS, 8 + 0 * BPS, 12 + 0 * BPS) - GET_SSE( 1 * BPS, 4 + 1 * BPS, 8 + 1 * BPS, 12 + 1 * BPS) - GET_SSE( 2 * BPS, 4 + 2 * BPS, 8 + 2 * BPS, 12 + 2 * BPS) - GET_SSE( 3 * BPS, 4 + 3 * BPS, 8 + 3 * BPS, 12 + 3 * BPS) - GET_SSE( 4 * BPS, 4 + 4 * BPS, 8 + 4 * BPS, 12 + 4 * BPS) - GET_SSE( 5 * BPS, 4 + 5 * BPS, 8 + 5 * BPS, 12 + 5 * BPS) - GET_SSE( 6 * BPS, 4 + 6 * BPS, 8 + 6 * BPS, 12 + 6 * BPS) - GET_SSE( 7 * BPS, 4 + 7 * BPS, 8 + 7 * BPS, 12 + 7 * BPS) - GET_SSE( 8 * BPS, 4 + 8 * BPS, 8 + 8 * BPS, 12 + 8 * BPS) - GET_SSE( 9 * BPS, 4 + 9 * BPS, 8 + 9 * BPS, 12 + 9 * BPS) - GET_SSE(10 * BPS, 4 + 10 * BPS, 8 + 10 * BPS, 12 + 10 * BPS) - GET_SSE(11 * BPS, 4 + 11 * BPS, 8 + 11 * BPS, 12 + 11 * BPS) - GET_SSE(12 * BPS, 4 + 12 * BPS, 8 + 12 * BPS, 12 + 12 * BPS) - GET_SSE(13 * BPS, 4 + 13 * BPS, 8 + 13 * BPS, 12 + 13 * BPS) - GET_SSE(14 * BPS, 4 + 14 * BPS, 8 + 14 * BPS, 12 + 14 * BPS) - GET_SSE(15 * BPS, 4 + 15 * BPS, 8 + 15 * BPS, 12 + 15 * BPS) - - "mflo %[count] \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [count]"=&r"(count) - : [a]"r"(a), [b]"r"(b) - : "memory", "hi", "lo" - ); - return count; -} - -static int SSE16x8(const uint8_t* a, const uint8_t* b) { - int count; - int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7; - - __asm__ volatile( - "mult $zero, $zero \n\t" - - GET_SSE( 0 * BPS, 4 + 0 * BPS, 8 + 0 * BPS, 12 + 0 * BPS) - GET_SSE( 1 * BPS, 4 + 1 * BPS, 8 + 1 * BPS, 12 + 1 * BPS) - GET_SSE( 2 * BPS, 4 + 2 * BPS, 8 + 2 * BPS, 12 + 2 * BPS) - GET_SSE( 3 * BPS, 4 + 3 * BPS, 8 + 3 * BPS, 12 + 3 * BPS) - GET_SSE( 4 * BPS, 4 + 4 * BPS, 8 + 4 * BPS, 12 + 4 * BPS) - GET_SSE( 5 * BPS, 4 + 5 * BPS, 8 + 5 * BPS, 12 + 5 * BPS) - GET_SSE( 6 * BPS, 4 + 6 * BPS, 8 + 6 * BPS, 12 + 6 * BPS) - GET_SSE( 7 * BPS, 4 + 7 * BPS, 8 + 7 * BPS, 12 + 7 * BPS) - - "mflo %[count] \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [count]"=&r"(count) - : [a]"r"(a), [b]"r"(b) - : "memory", "hi", "lo" - ); - return count; -} - -static int SSE8x8(const uint8_t* a, const uint8_t* b) { - int count; - int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7; - - __asm__ volatile( - "mult $zero, $zero \n\t" - - GET_SSE(0 * BPS, 4 + 0 * BPS, 1 * BPS, 4 + 1 * BPS) - GET_SSE(2 * BPS, 4 + 2 * BPS, 3 * BPS, 4 + 3 * BPS) - GET_SSE(4 * BPS, 4 + 4 * BPS, 5 * BPS, 4 + 5 * BPS) - GET_SSE(6 * BPS, 4 + 6 * BPS, 7 * BPS, 4 + 7 * BPS) - - "mflo %[count] \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [count]"=&r"(count) - : [a]"r"(a), [b]"r"(b) - : "memory", "hi", "lo" - ); - return count; -} - -static int SSE4x4(const uint8_t* a, const uint8_t* b) { - int count; - int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7; - - __asm__ volatile( - "mult $zero, $zero \n\t" - - GET_SSE(0 * BPS, 1 * BPS, 2 * BPS, 3 * BPS) - - "mflo %[count] \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [count]"=&r"(count) - : [a]"r"(a), [b]"r"(b) - : "memory", "hi", "lo" - ); - return count; -} - -#undef GET_SSE -#undef GET_SSE_INNER - -#endif // !WORK_AROUND_GCC - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8EncDspInitMIPS32(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitMIPS32(void) { - VP8ITransform = ITransform; - VP8FTransform = FTransform; - VP8EncQuantizeBlock = QuantizeBlock; - VP8EncQuantize2Blocks = Quantize2Blocks; - VP8TDisto4x4 = Disto4x4; - VP8TDisto16x16 = Disto16x16; -#if !defined(WORK_AROUND_GCC) - VP8SSE16x16 = SSE16x16; - VP8SSE8x8 = SSE8x8; - VP8SSE16x8 = SSE16x8; - VP8SSE4x4 = SSE4x4; -#endif -} - -#else // !WEBP_USE_MIPS32 - -WEBP_DSP_INIT_STUB(VP8EncDspInitMIPS32) - -#endif // WEBP_USE_MIPS32 diff --git a/drivers/webp/dsp/enc_mips_dsp_r2.c b/drivers/webp/dsp/enc_mips_dsp_r2.c deleted file mode 100644 index 7ab96f6800..0000000000 --- a/drivers/webp/dsp/enc_mips_dsp_r2.c +++ /dev/null @@ -1,1510 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// MIPS version of speed-critical encoding functions. -// -// Author(s): Darko Laus (darko.laus@imgtec.com) -// Mirko Raus (mirko.raus@imgtec.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_MIPS_DSP_R2) - -#include "./mips_macro.h" -#include "../enc/cost.h" -#include "../enc/vp8enci.h" - -static const int kC1 = 20091 + (1 << 16); -static const int kC2 = 35468; - -// O - output -// I - input (macro doesn't change it) -#define ADD_SUB_HALVES_X4(O0, O1, O2, O3, O4, O5, O6, O7, \ - I0, I1, I2, I3, I4, I5, I6, I7) \ - "addq.ph %[" #O0 "], %[" #I0 "], %[" #I1 "] \n\t" \ - "subq.ph %[" #O1 "], %[" #I0 "], %[" #I1 "] \n\t" \ - "addq.ph %[" #O2 "], %[" #I2 "], %[" #I3 "] \n\t" \ - "subq.ph %[" #O3 "], %[" #I2 "], %[" #I3 "] \n\t" \ - "addq.ph %[" #O4 "], %[" #I4 "], %[" #I5 "] \n\t" \ - "subq.ph %[" #O5 "], %[" #I4 "], %[" #I5 "] \n\t" \ - "addq.ph %[" #O6 "], %[" #I6 "], %[" #I7 "] \n\t" \ - "subq.ph %[" #O7 "], %[" #I6 "], %[" #I7 "] \n\t" - -// IO - input/output -#define ABS_X8(IO0, IO1, IO2, IO3, IO4, IO5, IO6, IO7) \ - "absq_s.ph %[" #IO0 "], %[" #IO0 "] \n\t" \ - "absq_s.ph %[" #IO1 "], %[" #IO1 "] \n\t" \ - "absq_s.ph %[" #IO2 "], %[" #IO2 "] \n\t" \ - "absq_s.ph %[" #IO3 "], %[" #IO3 "] \n\t" \ - "absq_s.ph %[" #IO4 "], %[" #IO4 "] \n\t" \ - "absq_s.ph %[" #IO5 "], %[" #IO5 "] \n\t" \ - "absq_s.ph %[" #IO6 "], %[" #IO6 "] \n\t" \ - "absq_s.ph %[" #IO7 "], %[" #IO7 "] \n\t" - -// dpa.w.ph $ac0 temp0 ,temp1 -// $ac += temp0[31..16] * temp1[31..16] + temp0[15..0] * temp1[15..0] -// dpax.w.ph $ac0 temp0 ,temp1 -// $ac += temp0[31..16] * temp1[15..0] + temp0[15..0] * temp1[31..16] -// O - output -// I - input (macro doesn't change it) -#define MUL_HALF(O0, I0, I1, I2, I3, I4, I5, I6, I7, \ - I8, I9, I10, I11, I12, I13, I14, I15) \ - "mult $ac0, $zero, $zero \n\t" \ - "dpa.w.ph $ac0, %[" #I2 "], %[" #I0 "] \n\t" \ - "dpax.w.ph $ac0, %[" #I5 "], %[" #I6 "] \n\t" \ - "dpa.w.ph $ac0, %[" #I8 "], %[" #I9 "] \n\t" \ - "dpax.w.ph $ac0, %[" #I11 "], %[" #I4 "] \n\t" \ - "dpa.w.ph $ac0, %[" #I12 "], %[" #I7 "] \n\t" \ - "dpax.w.ph $ac0, %[" #I13 "], %[" #I1 "] \n\t" \ - "dpa.w.ph $ac0, %[" #I14 "], %[" #I3 "] \n\t" \ - "dpax.w.ph $ac0, %[" #I15 "], %[" #I10 "] \n\t" \ - "mflo %[" #O0 "], $ac0 \n\t" - -#define OUTPUT_EARLY_CLOBBER_REGS_17() \ - OUTPUT_EARLY_CLOBBER_REGS_10(), \ - [temp11]"=&r"(temp11), [temp12]"=&r"(temp12), [temp13]"=&r"(temp13), \ - [temp14]"=&r"(temp14), [temp15]"=&r"(temp15), [temp16]"=&r"(temp16), \ - [temp17]"=&r"(temp17) - -// macro for one horizontal pass in FTransform -// temp0..temp15 holds tmp[0]..tmp[15] -// A - offset in bytes to load from src and ref buffers -// TEMP0..TEMP3 - registers for corresponding tmp elements -#define HORIZONTAL_PASS(A, TEMP0, TEMP1, TEMP2, TEMP3) \ - "lw %[" #TEMP0 "], 0(%[args]) \n\t" \ - "lw %[" #TEMP1 "], 4(%[args]) \n\t" \ - "lw %[" #TEMP2 "], " XSTR(BPS) "*" #A "(%[" #TEMP0 "]) \n\t" \ - "lw %[" #TEMP3 "], " XSTR(BPS) "*" #A "(%[" #TEMP1 "]) \n\t" \ - "preceu.ph.qbl %[" #TEMP0 "], %[" #TEMP2 "] \n\t" \ - "preceu.ph.qbl %[" #TEMP1 "], %[" #TEMP3 "] \n\t" \ - "preceu.ph.qbr %[" #TEMP2 "], %[" #TEMP2 "] \n\t" \ - "preceu.ph.qbr %[" #TEMP3 "], %[" #TEMP3 "] \n\t" \ - "subq.ph %[" #TEMP0 "], %[" #TEMP0 "], %[" #TEMP1 "] \n\t" \ - "subq.ph %[" #TEMP2 "], %[" #TEMP2 "], %[" #TEMP3 "] \n\t" \ - "rotr %[" #TEMP0 "], %[" #TEMP0 "], 16 \n\t" \ - "addq.ph %[" #TEMP1 "], %[" #TEMP2 "], %[" #TEMP0 "] \n\t" \ - "subq.ph %[" #TEMP3 "], %[" #TEMP2 "], %[" #TEMP0 "] \n\t" \ - "seh %[" #TEMP0 "], %[" #TEMP1 "] \n\t" \ - "sra %[temp16], %[" #TEMP1 "], 16 \n\t" \ - "seh %[temp19], %[" #TEMP3 "] \n\t" \ - "sra %[" #TEMP3 "], %[" #TEMP3 "], 16 \n\t" \ - "subu %[" #TEMP2 "], %[" #TEMP0 "], %[temp16] \n\t" \ - "addu %[" #TEMP0 "], %[" #TEMP0 "], %[temp16] \n\t" \ - "mul %[temp17], %[temp19], %[c2217] \n\t" \ - "mul %[temp18], %[" #TEMP3 "], %[c5352] \n\t" \ - "mul %[" #TEMP1 "], %[temp19], %[c5352] \n\t" \ - "mul %[temp16], %[" #TEMP3 "], %[c2217] \n\t" \ - "sll %[" #TEMP2 "], %[" #TEMP2 "], 3 \n\t" \ - "sll %[" #TEMP0 "], %[" #TEMP0 "], 3 \n\t" \ - "subu %[" #TEMP3 "], %[temp17], %[temp18] \n\t" \ - "addu %[" #TEMP1 "], %[temp16], %[" #TEMP1 "] \n\t" \ - "addiu %[" #TEMP3 "], %[" #TEMP3 "], 937 \n\t" \ - "addiu %[" #TEMP1 "], %[" #TEMP1 "], 1812 \n\t" \ - "sra %[" #TEMP3 "], %[" #TEMP3 "], 9 \n\t" \ - "sra %[" #TEMP1 "], %[" #TEMP1 "], 9 \n\t" - -// macro for one vertical pass in FTransform -// temp0..temp15 holds tmp[0]..tmp[15] -// A..D - offsets in bytes to store to out buffer -// TEMP0, TEMP4, TEMP8 and TEMP12 - registers for corresponding tmp elements -#define VERTICAL_PASS(A, B, C, D, TEMP0, TEMP4, TEMP8, TEMP12) \ - "addu %[temp16], %[" #TEMP0 "], %[" #TEMP12 "] \n\t" \ - "subu %[temp19], %[" #TEMP0 "], %[" #TEMP12 "] \n\t" \ - "addu %[temp17], %[" #TEMP4 "], %[" #TEMP8 "] \n\t" \ - "subu %[temp18], %[" #TEMP4 "], %[" #TEMP8 "] \n\t" \ - "mul %[" #TEMP8 "], %[temp19], %[c2217] \n\t" \ - "mul %[" #TEMP12 "], %[temp18], %[c2217] \n\t" \ - "mul %[" #TEMP4 "], %[temp19], %[c5352] \n\t" \ - "mul %[temp18], %[temp18], %[c5352] \n\t" \ - "addiu %[temp16], %[temp16], 7 \n\t" \ - "addu %[" #TEMP0 "], %[temp16], %[temp17] \n\t" \ - "sra %[" #TEMP0 "], %[" #TEMP0 "], 4 \n\t" \ - "addu %[" #TEMP12 "], %[" #TEMP12 "], %[" #TEMP4 "] \n\t" \ - "subu %[" #TEMP4 "], %[temp16], %[temp17] \n\t" \ - "sra %[" #TEMP4 "], %[" #TEMP4 "], 4 \n\t" \ - "addiu %[" #TEMP8 "], %[" #TEMP8 "], 30000 \n\t" \ - "addiu %[" #TEMP12 "], %[" #TEMP12 "], 12000 \n\t" \ - "addiu %[" #TEMP8 "], %[" #TEMP8 "], 21000 \n\t" \ - "subu %[" #TEMP8 "], %[" #TEMP8 "], %[temp18] \n\t" \ - "sra %[" #TEMP12 "], %[" #TEMP12 "], 16 \n\t" \ - "sra %[" #TEMP8 "], %[" #TEMP8 "], 16 \n\t" \ - "addiu %[temp16], %[" #TEMP12 "], 1 \n\t" \ - "movn %[" #TEMP12 "], %[temp16], %[temp19] \n\t" \ - "sh %[" #TEMP0 "], " #A "(%[temp20]) \n\t" \ - "sh %[" #TEMP4 "], " #C "(%[temp20]) \n\t" \ - "sh %[" #TEMP8 "], " #D "(%[temp20]) \n\t" \ - "sh %[" #TEMP12 "], " #B "(%[temp20]) \n\t" - -static void FTransform(const uint8_t* src, const uint8_t* ref, int16_t* out) { - const int c2217 = 2217; - const int c5352 = 5352; - int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7, temp8; - int temp9, temp10, temp11, temp12, temp13, temp14, temp15, temp16; - int temp17, temp18, temp19, temp20; - const int* const args[3] = - { (const int*)src, (const int*)ref, (const int*)out }; - - __asm__ volatile ( - HORIZONTAL_PASS(0, temp0, temp1, temp2, temp3) - HORIZONTAL_PASS(1, temp4, temp5, temp6, temp7) - HORIZONTAL_PASS(2, temp8, temp9, temp10, temp11) - HORIZONTAL_PASS(3, temp12, temp13, temp14, temp15) - "lw %[temp20], 8(%[args]) \n\t" - VERTICAL_PASS(0, 8, 16, 24, temp0, temp4, temp8, temp12) - VERTICAL_PASS(2, 10, 18, 26, temp1, temp5, temp9, temp13) - VERTICAL_PASS(4, 12, 20, 28, temp2, temp6, temp10, temp14) - VERTICAL_PASS(6, 14, 22, 30, temp3, temp7, temp11, temp15) - OUTPUT_EARLY_CLOBBER_REGS_18(), - [temp0]"=&r"(temp0), [temp19]"=&r"(temp19), [temp20]"=&r"(temp20) - : [args]"r"(args), [c2217]"r"(c2217), [c5352]"r"(c5352) - : "memory", "hi", "lo" - ); -} - -#undef VERTICAL_PASS -#undef HORIZONTAL_PASS - -static WEBP_INLINE void ITransformOne(const uint8_t* ref, const int16_t* in, - uint8_t* dst) { - int temp1, temp2, temp3, temp4, temp5, temp6, temp7, temp8, temp9; - int temp10, temp11, temp12, temp13, temp14, temp15, temp16, temp17, temp18; - - __asm__ volatile ( - "ulw %[temp1], 0(%[in]) \n\t" - "ulw %[temp2], 16(%[in]) \n\t" - LOAD_IN_X2(temp5, temp6, 24, 26) - ADD_SUB_HALVES(temp3, temp4, temp1, temp2) - LOAD_IN_X2(temp1, temp2, 8, 10) - MUL_SHIFT_SUM(temp7, temp8, temp9, temp10, temp11, temp12, temp13, temp14, - temp10, temp8, temp9, temp7, temp1, temp2, temp5, temp6, - temp13, temp11, temp14, temp12) - INSERT_HALF_X2(temp8, temp7, temp10, temp9) - "ulw %[temp17], 4(%[in]) \n\t" - "ulw %[temp18], 20(%[in]) \n\t" - ADD_SUB_HALVES(temp1, temp2, temp3, temp8) - ADD_SUB_HALVES(temp5, temp6, temp4, temp7) - ADD_SUB_HALVES(temp7, temp8, temp17, temp18) - LOAD_IN_X2(temp17, temp18, 12, 14) - LOAD_IN_X2(temp9, temp10, 28, 30) - MUL_SHIFT_SUM(temp11, temp12, temp13, temp14, temp15, temp16, temp4, temp17, - temp12, temp14, temp11, temp13, temp17, temp18, temp9, temp10, - temp15, temp4, temp16, temp17) - INSERT_HALF_X2(temp11, temp12, temp13, temp14) - ADD_SUB_HALVES(temp17, temp8, temp8, temp11) - ADD_SUB_HALVES(temp3, temp4, temp7, temp12) - - // horizontal - SRA_16(temp9, temp10, temp11, temp12, temp1, temp2, temp5, temp6) - INSERT_HALF_X2(temp1, temp6, temp5, temp2) - SRA_16(temp13, temp14, temp15, temp16, temp3, temp4, temp17, temp8) - "repl.ph %[temp2], 0x4 \n\t" - INSERT_HALF_X2(temp3, temp8, temp17, temp4) - "addq.ph %[temp1], %[temp1], %[temp2] \n\t" - "addq.ph %[temp6], %[temp6], %[temp2] \n\t" - ADD_SUB_HALVES(temp2, temp4, temp1, temp3) - ADD_SUB_HALVES(temp5, temp7, temp6, temp8) - MUL_SHIFT_SUM(temp1, temp3, temp6, temp8, temp9, temp13, temp17, temp18, - temp3, temp13, temp1, temp9, temp9, temp13, temp11, temp15, - temp6, temp17, temp8, temp18) - MUL_SHIFT_SUM(temp6, temp8, temp18, temp17, temp11, temp15, temp12, temp16, - temp8, temp15, temp6, temp11, temp12, temp16, temp10, temp14, - temp18, temp12, temp17, temp16) - INSERT_HALF_X2(temp1, temp3, temp9, temp13) - INSERT_HALF_X2(temp6, temp8, temp11, temp15) - SHIFT_R_SUM_X2(temp9, temp10, temp11, temp12, temp13, temp14, temp15, - temp16, temp2, temp4, temp5, temp7, temp3, temp1, temp8, - temp6) - PACK_2_HALVES_TO_WORD(temp1, temp2, temp3, temp4, temp9, temp12, temp13, - temp16, temp11, temp10, temp15, temp14) - LOAD_WITH_OFFSET_X4(temp10, temp11, temp14, temp15, ref, - 0, 0, 0, 0, - 0, 1, 2, 3, - BPS) - CONVERT_2_BYTES_TO_HALF(temp5, temp6, temp7, temp8, temp17, temp18, temp10, - temp11, temp10, temp11, temp14, temp15) - STORE_SAT_SUM_X2(temp5, temp6, temp7, temp8, temp17, temp18, temp10, temp11, - temp9, temp12, temp1, temp2, temp13, temp16, temp3, temp4, - dst, 0, 1, 2, 3, BPS) - - OUTPUT_EARLY_CLOBBER_REGS_18() - : [dst]"r"(dst), [in]"r"(in), [kC1]"r"(kC1), [kC2]"r"(kC2), [ref]"r"(ref) - : "memory", "hi", "lo" - ); -} - -static void ITransform(const uint8_t* ref, const int16_t* in, uint8_t* dst, - int do_two) { - ITransformOne(ref, in, dst); - if (do_two) { - ITransformOne(ref + 4, in + 16, dst + 4); - } -} - -static int Disto4x4(const uint8_t* const a, const uint8_t* const b, - const uint16_t* const w) { - int temp1, temp2, temp3, temp4, temp5, temp6, temp7, temp8, temp9; - int temp10, temp11, temp12, temp13, temp14, temp15, temp16, temp17; - - __asm__ volatile ( - LOAD_WITH_OFFSET_X4(temp1, temp2, temp3, temp4, a, - 0, 0, 0, 0, - 0, 1, 2, 3, - BPS) - CONVERT_2_BYTES_TO_HALF(temp5, temp6, temp7, temp8, temp9,temp10, temp11, - temp12, temp1, temp2, temp3, temp4) - ADD_SUB_HALVES_X4(temp1, temp2, temp3, temp4, temp5, temp6, temp7, temp8, - temp5, temp6, temp7, temp8, temp9, temp10, temp11, temp12) - PACK_2_HALVES_TO_WORD(temp9, temp10, temp11, temp12, temp1, temp3, temp5, - temp7, temp2, temp4, temp6, temp8) - ADD_SUB_HALVES_X4(temp2, temp4, temp6, temp8, temp9, temp1, temp3, temp10, - temp1, temp9, temp3, temp10, temp5, temp11, temp7, temp12) - ADD_SUB_HALVES_X4(temp5, temp11, temp7, temp2, temp9, temp3, temp6, temp12, - temp2, temp9, temp6, temp3, temp4, temp1, temp8, temp10) - ADD_SUB_HALVES_X4(temp1, temp4, temp10, temp8, temp7, temp11, temp5, temp2, - temp5, temp7, temp11, temp2, temp9, temp6, temp3, temp12) - ABS_X8(temp1, temp4, temp10, temp8, temp7, temp11, temp5, temp2) - LOAD_WITH_OFFSET_X4(temp3, temp6, temp9, temp12, w, - 0, 4, 8, 12, - 0, 0, 0, 0, - 0) - LOAD_WITH_OFFSET_X4(temp13, temp14, temp15, temp16, w, - 0, 4, 8, 12, - 1, 1, 1, 1, - 16) - MUL_HALF(temp17, temp1, temp2, temp3, temp4, temp5, temp6, temp7, temp8, - temp9, temp10, temp11, temp12, temp13, temp14, temp15, temp16) - LOAD_WITH_OFFSET_X4(temp1, temp2, temp3, temp4, b, - 0, 0, 0, 0, - 0, 1, 2, 3, - BPS) - CONVERT_2_BYTES_TO_HALF(temp5,temp6, temp7, temp8, temp9,temp10, temp11, - temp12, temp1, temp2, temp3, temp4) - ADD_SUB_HALVES_X4(temp1, temp2, temp3, temp4, temp5, temp6, temp7, temp8, - temp5, temp6, temp7, temp8, temp9, temp10, temp11, temp12) - PACK_2_HALVES_TO_WORD(temp9, temp10, temp11, temp12, temp1, temp3, temp5, - temp7, temp2, temp4, temp6, temp8) - ADD_SUB_HALVES_X4(temp2, temp4, temp6, temp8, temp9, temp1, temp3, temp10, - temp1, temp9, temp3, temp10, temp5, temp11, temp7, temp12) - ADD_SUB_HALVES_X4(temp5, temp11, temp7, temp2, temp9, temp3, temp6, temp12, - temp2, temp9, temp6, temp3, temp4, temp1, temp8, temp10) - ADD_SUB_HALVES_X4(temp1, temp4, temp10, temp8, temp7, temp11, temp5, temp2, - temp5, temp7, temp11, temp2, temp9, temp6, temp3, temp12) - ABS_X8(temp1, temp4, temp10, temp8, temp7, temp11, temp5, temp2) - LOAD_WITH_OFFSET_X4(temp3, temp6, temp9, temp12, w, - 0, 4, 8, 12, - 0, 0, 0, 0, - 0) - LOAD_WITH_OFFSET_X4(temp13, temp14, temp15, temp16, w, - 0, 4, 8, 12, - 1, 1, 1, 1, - 16) - MUL_HALF(temp3, temp1, temp2, temp3, temp4, temp5, temp6, temp7, temp8, - temp9, temp10, temp11, temp12, temp13, temp14, temp15, temp16) - OUTPUT_EARLY_CLOBBER_REGS_17() - : [a]"r"(a), [b]"r"(b), [w]"r"(w) - : "memory", "hi", "lo" - ); - return abs(temp3 - temp17) >> 5; -} - -static int Disto16x16(const uint8_t* const a, const uint8_t* const b, - const uint16_t* const w) { - int D = 0; - int x, y; - for (y = 0; y < 16 * BPS; y += 4 * BPS) { - for (x = 0; x < 16; x += 4) { - D += Disto4x4(a + x + y, b + x + y, w); - } - } - return D; -} - -//------------------------------------------------------------------------------ -// Intra predictions - -#define FILL_PART(J, SIZE) \ - "usw %[value], 0+" #J "*" XSTR(BPS) "(%[dst]) \n\t" \ - "usw %[value], 4+" #J "*" XSTR(BPS) "(%[dst]) \n\t" \ - ".if " #SIZE " == 16 \n\t" \ - "usw %[value], 8+" #J "*" XSTR(BPS) "(%[dst]) \n\t" \ - "usw %[value], 12+" #J "*" XSTR(BPS) "(%[dst]) \n\t" \ - ".endif \n\t" - -#define FILL_8_OR_16(DST, VALUE, SIZE) do { \ - int value = (VALUE); \ - __asm__ volatile ( \ - "replv.qb %[value], %[value] \n\t" \ - FILL_PART( 0, SIZE) \ - FILL_PART( 1, SIZE) \ - FILL_PART( 2, SIZE) \ - FILL_PART( 3, SIZE) \ - FILL_PART( 4, SIZE) \ - FILL_PART( 5, SIZE) \ - FILL_PART( 6, SIZE) \ - FILL_PART( 7, SIZE) \ - ".if " #SIZE " == 16 \n\t" \ - FILL_PART( 8, 16) \ - FILL_PART( 9, 16) \ - FILL_PART(10, 16) \ - FILL_PART(11, 16) \ - FILL_PART(12, 16) \ - FILL_PART(13, 16) \ - FILL_PART(14, 16) \ - FILL_PART(15, 16) \ - ".endif \n\t" \ - : [value]"+&r"(value) \ - : [dst]"r"((DST)) \ - : "memory" \ - ); \ -} while (0) - -#define VERTICAL_PRED(DST, TOP, SIZE) \ -static WEBP_INLINE void VerticalPred##SIZE(uint8_t* (DST), \ - const uint8_t* (TOP)) { \ - int j; \ - if ((TOP)) { \ - for (j = 0; j < (SIZE); ++j) memcpy((DST) + j * BPS, (TOP), (SIZE)); \ - } else { \ - FILL_8_OR_16((DST), 127, (SIZE)); \ - } \ -} - -VERTICAL_PRED(dst, top, 8) -VERTICAL_PRED(dst, top, 16) - -#undef VERTICAL_PRED - -#define HORIZONTAL_PRED(DST, LEFT, SIZE) \ -static WEBP_INLINE void HorizontalPred##SIZE(uint8_t* (DST), \ - const uint8_t* (LEFT)) { \ - if (LEFT) { \ - int j; \ - for (j = 0; j < (SIZE); ++j) { \ - memset((DST) + j * BPS, (LEFT)[j], (SIZE)); \ - } \ - } else { \ - FILL_8_OR_16((DST), 129, (SIZE)); \ - } \ -} - -HORIZONTAL_PRED(dst, left, 8) -HORIZONTAL_PRED(dst, left, 16) - -#undef HORIZONTAL_PRED - -#define CLIPPING() \ - "preceu.ph.qbl %[temp2], %[temp0] \n\t" \ - "preceu.ph.qbr %[temp0], %[temp0] \n\t" \ - "preceu.ph.qbl %[temp3], %[temp1] \n\t" \ - "preceu.ph.qbr %[temp1], %[temp1] \n\t" \ - "addu.ph %[temp2], %[temp2], %[leftY_1] \n\t" \ - "addu.ph %[temp0], %[temp0], %[leftY_1] \n\t" \ - "addu.ph %[temp3], %[temp3], %[leftY_1] \n\t" \ - "addu.ph %[temp1], %[temp1], %[leftY_1] \n\t" \ - "shll_s.ph %[temp2], %[temp2], 7 \n\t" \ - "shll_s.ph %[temp0], %[temp0], 7 \n\t" \ - "shll_s.ph %[temp3], %[temp3], 7 \n\t" \ - "shll_s.ph %[temp1], %[temp1], 7 \n\t" \ - "precrqu_s.qb.ph %[temp0], %[temp2], %[temp0] \n\t" \ - "precrqu_s.qb.ph %[temp1], %[temp3], %[temp1] \n\t" - -#define CLIP_8B_TO_DST(DST, LEFT, TOP, SIZE) do { \ - int leftY_1 = ((int)(LEFT)[y] << 16) + (LEFT)[y]; \ - int temp0, temp1, temp2, temp3; \ - __asm__ volatile ( \ - "replv.ph %[leftY_1], %[leftY_1] \n\t" \ - "ulw %[temp0], 0(%[top]) \n\t" \ - "ulw %[temp1], 4(%[top]) \n\t" \ - "subu.ph %[leftY_1], %[leftY_1], %[left_1] \n\t" \ - CLIPPING() \ - "usw %[temp0], 0(%[dst]) \n\t" \ - "usw %[temp1], 4(%[dst]) \n\t" \ - ".if " #SIZE " == 16 \n\t" \ - "ulw %[temp0], 8(%[top]) \n\t" \ - "ulw %[temp1], 12(%[top]) \n\t" \ - CLIPPING() \ - "usw %[temp0], 8(%[dst]) \n\t" \ - "usw %[temp1], 12(%[dst]) \n\t" \ - ".endif \n\t" \ - : [leftY_1]"+&r"(leftY_1), [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), \ - [temp2]"=&r"(temp2), [temp3]"=&r"(temp3) \ - : [left_1]"r"(left_1), [top]"r"((TOP)), [dst]"r"((DST)) \ - : "memory" \ - ); \ -} while (0) - -#define CLIP_TO_DST(DST, LEFT, TOP, SIZE) do { \ - int y; \ - const int left_1 = ((int)(LEFT)[-1] << 16) + (LEFT)[-1]; \ - for (y = 0; y < (SIZE); ++y) { \ - CLIP_8B_TO_DST((DST), (LEFT), (TOP), (SIZE)); \ - (DST) += BPS; \ - } \ -} while (0) - -#define TRUE_MOTION(DST, LEFT, TOP, SIZE) \ -static WEBP_INLINE void TrueMotion##SIZE(uint8_t* (DST), const uint8_t* (LEFT),\ - const uint8_t* (TOP)) { \ - if ((LEFT) != NULL) { \ - if ((TOP) != NULL) { \ - CLIP_TO_DST((DST), (LEFT), (TOP), (SIZE)); \ - } else { \ - HorizontalPred##SIZE((DST), (LEFT)); \ - } \ - } else { \ - /* true motion without left samples (hence: with default 129 value) */ \ - /* is equivalent to VE prediction where you just copy the top samples. */ \ - /* Note that if top samples are not available, the default value is */ \ - /* then 129, and not 127 as in the VerticalPred case. */ \ - if ((TOP) != NULL) { \ - VerticalPred##SIZE((DST), (TOP)); \ - } else { \ - FILL_8_OR_16((DST), 129, (SIZE)); \ - } \ - } \ -} - -TRUE_MOTION(dst, left, top, 8) -TRUE_MOTION(dst, left, top, 16) - -#undef TRUE_MOTION -#undef CLIP_TO_DST -#undef CLIP_8B_TO_DST -#undef CLIPPING - -static WEBP_INLINE void DCMode16(uint8_t* dst, const uint8_t* left, - const uint8_t* top) { - int DC, DC1; - int temp0, temp1, temp2, temp3; - - __asm__ volatile( - "beqz %[top], 2f \n\t" - LOAD_WITH_OFFSET_X4(temp0, temp1, temp2, temp3, top, - 0, 4, 8, 12, - 0, 0, 0, 0, - 0) - "raddu.w.qb %[temp0], %[temp0] \n\t" - "raddu.w.qb %[temp1], %[temp1] \n\t" - "raddu.w.qb %[temp2], %[temp2] \n\t" - "raddu.w.qb %[temp3], %[temp3] \n\t" - "addu %[temp0], %[temp0], %[temp1] \n\t" - "addu %[temp2], %[temp2], %[temp3] \n\t" - "addu %[DC], %[temp0], %[temp2] \n\t" - "move %[DC1], %[DC] \n\t" - "beqz %[left], 1f \n\t" - LOAD_WITH_OFFSET_X4(temp0, temp1, temp2, temp3, left, - 0, 4, 8, 12, - 0, 0, 0, 0, - 0) - "raddu.w.qb %[temp0], %[temp0] \n\t" - "raddu.w.qb %[temp1], %[temp1] \n\t" - "raddu.w.qb %[temp2], %[temp2] \n\t" - "raddu.w.qb %[temp3], %[temp3] \n\t" - "addu %[temp0], %[temp0], %[temp1] \n\t" - "addu %[temp2], %[temp2], %[temp3] \n\t" - "addu %[DC1], %[temp0], %[temp2] \n\t" - "1: \n\t" - "addu %[DC], %[DC], %[DC1] \n\t" - "j 3f \n\t" - "2: \n\t" - "beqz %[left], 4f \n\t" - LOAD_WITH_OFFSET_X4(temp0, temp1, temp2, temp3, left, - 0, 4, 8, 12, - 0, 0, 0, 0, - 0) - "raddu.w.qb %[temp0], %[temp0] \n\t" - "raddu.w.qb %[temp1], %[temp1] \n\t" - "raddu.w.qb %[temp2], %[temp2] \n\t" - "raddu.w.qb %[temp3], %[temp3] \n\t" - "addu %[temp0], %[temp0], %[temp1] \n\t" - "addu %[temp2], %[temp2], %[temp3] \n\t" - "addu %[DC], %[temp0], %[temp2] \n\t" - "addu %[DC], %[DC], %[DC] \n\t" - "3: \n\t" - "shra_r.w %[DC], %[DC], 5 \n\t" - "j 5f \n\t" - "4: \n\t" - "li %[DC], 0x80 \n\t" - "5: \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [DC]"=&r"(DC), - [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), [DC1]"=&r"(DC1) - : [left]"r"(left), [top]"r"(top) - : "memory" - ); - - FILL_8_OR_16(dst, DC, 16); -} - -static WEBP_INLINE void DCMode8(uint8_t* dst, const uint8_t* left, - const uint8_t* top) { - int DC, DC1; - int temp0, temp1, temp2, temp3; - - __asm__ volatile( - "beqz %[top], 2f \n\t" - "ulw %[temp0], 0(%[top]) \n\t" - "ulw %[temp1], 4(%[top]) \n\t" - "raddu.w.qb %[temp0], %[temp0] \n\t" - "raddu.w.qb %[temp1], %[temp1] \n\t" - "addu %[DC], %[temp0], %[temp1] \n\t" - "move %[DC1], %[DC] \n\t" - "beqz %[left], 1f \n\t" - "ulw %[temp2], 0(%[left]) \n\t" - "ulw %[temp3], 4(%[left]) \n\t" - "raddu.w.qb %[temp2], %[temp2] \n\t" - "raddu.w.qb %[temp3], %[temp3] \n\t" - "addu %[DC1], %[temp2], %[temp3] \n\t" - "1: \n\t" - "addu %[DC], %[DC], %[DC1] \n\t" - "j 3f \n\t" - "2: \n\t" - "beqz %[left], 4f \n\t" - "ulw %[temp2], 0(%[left]) \n\t" - "ulw %[temp3], 4(%[left]) \n\t" - "raddu.w.qb %[temp2], %[temp2] \n\t" - "raddu.w.qb %[temp3], %[temp3] \n\t" - "addu %[DC], %[temp2], %[temp3] \n\t" - "addu %[DC], %[DC], %[DC] \n\t" - "3: \n\t" - "shra_r.w %[DC], %[DC], 4 \n\t" - "j 5f \n\t" - "4: \n\t" - "li %[DC], 0x80 \n\t" - "5: \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [DC]"=&r"(DC), - [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), [DC1]"=&r"(DC1) - : [left]"r"(left), [top]"r"(top) - : "memory" - ); - - FILL_8_OR_16(dst, DC, 8); -} - -static void DC4(uint8_t* dst, const uint8_t* top) { - int temp0, temp1; - __asm__ volatile( - "ulw %[temp0], 0(%[top]) \n\t" - "ulw %[temp1], -5(%[top]) \n\t" - "raddu.w.qb %[temp0], %[temp0] \n\t" - "raddu.w.qb %[temp1], %[temp1] \n\t" - "addu %[temp0], %[temp0], %[temp1] \n\t" - "addiu %[temp0], %[temp0], 4 \n\t" - "srl %[temp0], %[temp0], 3 \n\t" - "replv.qb %[temp0], %[temp0] \n\t" - "usw %[temp0], 0*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp0], 1*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp0], 2*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp0], 3*" XSTR(BPS) "(%[dst]) \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1) - : [top]"r"(top), [dst]"r"(dst) - : "memory" - ); -} - -static void TM4(uint8_t* dst, const uint8_t* top) { - int a10, a32, temp0, temp1, temp2, temp3, temp4, temp5; - const int c35 = 0xff00ff; - __asm__ volatile ( - "lbu %[temp1], 0(%[top]) \n\t" - "lbu %[a10], 1(%[top]) \n\t" - "lbu %[temp2], 2(%[top]) \n\t" - "lbu %[a32], 3(%[top]) \n\t" - "ulw %[temp0], -5(%[top]) \n\t" - "lbu %[temp4], -1(%[top]) \n\t" - "append %[a10], %[temp1], 16 \n\t" - "append %[a32], %[temp2], 16 \n\t" - "replv.ph %[temp4], %[temp4] \n\t" - "shrl.ph %[temp1], %[temp0], 8 \n\t" - "and %[temp0], %[temp0], %[c35] \n\t" - "subu.ph %[temp1], %[temp1], %[temp4] \n\t" - "subu.ph %[temp0], %[temp0], %[temp4] \n\t" - "srl %[temp2], %[temp1], 16 \n\t" - "srl %[temp3], %[temp0], 16 \n\t" - "replv.ph %[temp2], %[temp2] \n\t" - "replv.ph %[temp3], %[temp3] \n\t" - "replv.ph %[temp4], %[temp1] \n\t" - "replv.ph %[temp5], %[temp0] \n\t" - "addu.ph %[temp0], %[temp3], %[a10] \n\t" - "addu.ph %[temp1], %[temp3], %[a32] \n\t" - "addu.ph %[temp3], %[temp2], %[a10] \n\t" - "addu.ph %[temp2], %[temp2], %[a32] \n\t" - "shll_s.ph %[temp0], %[temp0], 7 \n\t" - "shll_s.ph %[temp1], %[temp1], 7 \n\t" - "shll_s.ph %[temp3], %[temp3], 7 \n\t" - "shll_s.ph %[temp2], %[temp2], 7 \n\t" - "precrqu_s.qb.ph %[temp0], %[temp1], %[temp0] \n\t" - "precrqu_s.qb.ph %[temp1], %[temp2], %[temp3] \n\t" - "addu.ph %[temp2], %[temp5], %[a10] \n\t" - "addu.ph %[temp3], %[temp5], %[a32] \n\t" - "addu.ph %[temp5], %[temp4], %[a10] \n\t" - "addu.ph %[temp4], %[temp4], %[a32] \n\t" - "shll_s.ph %[temp2], %[temp2], 7 \n\t" - "shll_s.ph %[temp3], %[temp3], 7 \n\t" - "shll_s.ph %[temp4], %[temp4], 7 \n\t" - "shll_s.ph %[temp5], %[temp5], 7 \n\t" - "precrqu_s.qb.ph %[temp2], %[temp3], %[temp2] \n\t" - "precrqu_s.qb.ph %[temp3], %[temp4], %[temp5] \n\t" - "usw %[temp1], 0*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp0], 1*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp3], 2*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp2], 3*" XSTR(BPS) "(%[dst]) \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [a10]"=&r"(a10), [a32]"=&r"(a32) - : [c35]"r"(c35), [top]"r"(top), [dst]"r"(dst) - : "memory" - ); -} - -static void VE4(uint8_t* dst, const uint8_t* top) { - int temp0, temp1, temp2, temp3, temp4, temp5, temp6; - __asm__ volatile( - "ulw %[temp0], -1(%[top]) \n\t" - "ulh %[temp1], 3(%[top]) \n\t" - "preceu.ph.qbr %[temp2], %[temp0] \n\t" - "preceu.ph.qbl %[temp3], %[temp0] \n\t" - "preceu.ph.qbr %[temp4], %[temp1] \n\t" - "packrl.ph %[temp5], %[temp3], %[temp2] \n\t" - "packrl.ph %[temp6], %[temp4], %[temp3] \n\t" - "shll.ph %[temp5], %[temp5], 1 \n\t" - "shll.ph %[temp6], %[temp6], 1 \n\t" - "addq.ph %[temp2], %[temp5], %[temp2] \n\t" - "addq.ph %[temp6], %[temp6], %[temp4] \n\t" - "addq.ph %[temp2], %[temp2], %[temp3] \n\t" - "addq.ph %[temp6], %[temp6], %[temp3] \n\t" - "shra_r.ph %[temp2], %[temp2], 2 \n\t" - "shra_r.ph %[temp6], %[temp6], 2 \n\t" - "precr.qb.ph %[temp4], %[temp6], %[temp2] \n\t" - "usw %[temp4], 0*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp4], 1*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp4], 2*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp4], 3*" XSTR(BPS) "(%[dst]) \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6) - : [top]"r"(top), [dst]"r"(dst) - : "memory" - ); -} - -static void HE4(uint8_t* dst, const uint8_t* top) { - int temp0, temp1, temp2, temp3, temp4, temp5, temp6; - __asm__ volatile( - "ulw %[temp0], -4(%[top]) \n\t" - "lbu %[temp1], -5(%[top]) \n\t" - "preceu.ph.qbr %[temp2], %[temp0] \n\t" - "preceu.ph.qbl %[temp3], %[temp0] \n\t" - "replv.ph %[temp4], %[temp1] \n\t" - "packrl.ph %[temp5], %[temp3], %[temp2] \n\t" - "packrl.ph %[temp6], %[temp2], %[temp4] \n\t" - "shll.ph %[temp5], %[temp5], 1 \n\t" - "shll.ph %[temp6], %[temp6], 1 \n\t" - "addq.ph %[temp3], %[temp3], %[temp5] \n\t" - "addq.ph %[temp3], %[temp3], %[temp2] \n\t" - "addq.ph %[temp2], %[temp2], %[temp6] \n\t" - "addq.ph %[temp2], %[temp2], %[temp4] \n\t" - "shra_r.ph %[temp3], %[temp3], 2 \n\t" - "shra_r.ph %[temp2], %[temp2], 2 \n\t" - "replv.qb %[temp0], %[temp3] \n\t" - "replv.qb %[temp1], %[temp2] \n\t" - "srl %[temp3], %[temp3], 16 \n\t" - "srl %[temp2], %[temp2], 16 \n\t" - "replv.qb %[temp3], %[temp3] \n\t" - "replv.qb %[temp2], %[temp2] \n\t" - "usw %[temp3], 0*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp0], 1*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp2], 2*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp1], 3*" XSTR(BPS) "(%[dst]) \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6) - : [top]"r"(top), [dst]"r"(dst) - : "memory" - ); -} - -static void RD4(uint8_t* dst, const uint8_t* top) { - int temp0, temp1, temp2, temp3, temp4, temp5; - int temp6, temp7, temp8, temp9, temp10, temp11; - __asm__ volatile( - "ulw %[temp0], -5(%[top]) \n\t" - "ulw %[temp1], -1(%[top]) \n\t" - "preceu.ph.qbl %[temp2], %[temp0] \n\t" - "preceu.ph.qbr %[temp3], %[temp0] \n\t" - "preceu.ph.qbr %[temp4], %[temp1] \n\t" - "preceu.ph.qbl %[temp5], %[temp1] \n\t" - "packrl.ph %[temp6], %[temp2], %[temp3] \n\t" - "packrl.ph %[temp7], %[temp4], %[temp2] \n\t" - "packrl.ph %[temp8], %[temp5], %[temp4] \n\t" - "shll.ph %[temp6], %[temp6], 1 \n\t" - "addq.ph %[temp9], %[temp2], %[temp6] \n\t" - "shll.ph %[temp7], %[temp7], 1 \n\t" - "addq.ph %[temp9], %[temp9], %[temp3] \n\t" - "shll.ph %[temp8], %[temp8], 1 \n\t" - "shra_r.ph %[temp9], %[temp9], 2 \n\t" - "addq.ph %[temp10], %[temp4], %[temp7] \n\t" - "addq.ph %[temp11], %[temp5], %[temp8] \n\t" - "addq.ph %[temp10], %[temp10], %[temp2] \n\t" - "addq.ph %[temp11], %[temp11], %[temp4] \n\t" - "shra_r.ph %[temp10], %[temp10], 2 \n\t" - "shra_r.ph %[temp11], %[temp11], 2 \n\t" - "lbu %[temp0], 3(%[top]) \n\t" - "lbu %[temp1], 2(%[top]) \n\t" - "lbu %[temp2], 1(%[top]) \n\t" - "sll %[temp1], %[temp1], 1 \n\t" - "addu %[temp0], %[temp0], %[temp1] \n\t" - "addu %[temp0], %[temp0], %[temp2] \n\t" - "precr.qb.ph %[temp9], %[temp10], %[temp9] \n\t" - "shra_r.w %[temp0], %[temp0], 2 \n\t" - "precr.qb.ph %[temp10], %[temp11], %[temp10] \n\t" - "usw %[temp9], 3*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp10], 1*" XSTR(BPS) "(%[dst]) \n\t" - "prepend %[temp9], %[temp11], 8 \n\t" - "prepend %[temp10], %[temp0], 8 \n\t" - "usw %[temp9], 2*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp10], 0*" XSTR(BPS) "(%[dst]) \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8), - [temp9]"=&r"(temp9), [temp10]"=&r"(temp10), [temp11]"=&r"(temp11) - : [top]"r"(top), [dst]"r"(dst) - : "memory" - ); -} - -static void VR4(uint8_t* dst, const uint8_t* top) { - int temp0, temp1, temp2, temp3, temp4; - int temp5, temp6, temp7, temp8, temp9; - __asm__ volatile ( - "ulw %[temp0], -4(%[top]) \n\t" - "ulw %[temp1], 0(%[top]) \n\t" - "preceu.ph.qbl %[temp2], %[temp0] \n\t" - "preceu.ph.qbr %[temp0], %[temp0] \n\t" - "preceu.ph.qbla %[temp3], %[temp1] \n\t" - "preceu.ph.qbra %[temp1], %[temp1] \n\t" - "packrl.ph %[temp7], %[temp3], %[temp2] \n\t" - "addqh_r.ph %[temp4], %[temp1], %[temp3] \n\t" - "move %[temp6], %[temp1] \n\t" - "append %[temp1], %[temp2], 16 \n\t" - "shll.ph %[temp9], %[temp6], 1 \n\t" - "addqh_r.ph %[temp5], %[temp7], %[temp6] \n\t" - "shll.ph %[temp8], %[temp7], 1 \n\t" - "addu.ph %[temp3], %[temp7], %[temp3] \n\t" - "addu.ph %[temp1], %[temp1], %[temp6] \n\t" - "packrl.ph %[temp7], %[temp2], %[temp0] \n\t" - "addu.ph %[temp6], %[temp0], %[temp2] \n\t" - "addu.ph %[temp3], %[temp3], %[temp9] \n\t" - "addu.ph %[temp1], %[temp1], %[temp8] \n\t" - "shll.ph %[temp7], %[temp7], 1 \n\t" - "shra_r.ph %[temp3], %[temp3], 2 \n\t" - "shra_r.ph %[temp1], %[temp1], 2 \n\t" - "addu.ph %[temp6], %[temp6], %[temp7] \n\t" - "shra_r.ph %[temp6], %[temp6], 2 \n\t" - "precrq.ph.w %[temp8], %[temp4], %[temp5] \n\t" - "append %[temp4], %[temp5], 16 \n\t" - "precrq.ph.w %[temp2], %[temp3], %[temp1] \n\t" - "append %[temp3], %[temp1], 16 \n\t" - "precr.qb.ph %[temp8], %[temp8], %[temp4] \n\t" - "precr.qb.ph %[temp3], %[temp2], %[temp3] \n\t" - "usw %[temp8], 0*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp3], 1*" XSTR(BPS) "(%[dst]) \n\t" - "append %[temp3], %[temp6], 8 \n\t" - "srl %[temp6], %[temp6], 16 \n\t" - "append %[temp8], %[temp6], 8 \n\t" - "usw %[temp3], 3*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp8], 2*" XSTR(BPS) "(%[dst]) \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8), - [temp9]"=&r"(temp9) - : [top]"r"(top), [dst]"r"(dst) - : "memory" - ); -} - -static void LD4(uint8_t* dst, const uint8_t* top) { - int temp0, temp1, temp2, temp3, temp4, temp5; - int temp6, temp7, temp8, temp9, temp10, temp11; - __asm__ volatile( - "ulw %[temp0], 0(%[top]) \n\t" - "ulw %[temp1], 4(%[top]) \n\t" - "preceu.ph.qbl %[temp2], %[temp0] \n\t" - "preceu.ph.qbr %[temp3], %[temp0] \n\t" - "preceu.ph.qbr %[temp4], %[temp1] \n\t" - "preceu.ph.qbl %[temp5], %[temp1] \n\t" - "packrl.ph %[temp6], %[temp2], %[temp3] \n\t" - "packrl.ph %[temp7], %[temp4], %[temp2] \n\t" - "packrl.ph %[temp8], %[temp5], %[temp4] \n\t" - "shll.ph %[temp6], %[temp6], 1 \n\t" - "addq.ph %[temp9], %[temp2], %[temp6] \n\t" - "shll.ph %[temp7], %[temp7], 1 \n\t" - "addq.ph %[temp9], %[temp9], %[temp3] \n\t" - "shll.ph %[temp8], %[temp8], 1 \n\t" - "shra_r.ph %[temp9], %[temp9], 2 \n\t" - "addq.ph %[temp10], %[temp4], %[temp7] \n\t" - "addq.ph %[temp11], %[temp5], %[temp8] \n\t" - "addq.ph %[temp10], %[temp10], %[temp2] \n\t" - "addq.ph %[temp11], %[temp11], %[temp4] \n\t" - "shra_r.ph %[temp10], %[temp10], 2 \n\t" - "shra_r.ph %[temp11], %[temp11], 2 \n\t" - "srl %[temp1], %[temp1], 24 \n\t" - "sll %[temp1], %[temp1], 1 \n\t" - "raddu.w.qb %[temp5], %[temp5] \n\t" - "precr.qb.ph %[temp9], %[temp10], %[temp9] \n\t" - "precr.qb.ph %[temp10], %[temp11], %[temp10] \n\t" - "addu %[temp1], %[temp1], %[temp5] \n\t" - "shra_r.w %[temp1], %[temp1], 2 \n\t" - "usw %[temp9], 0*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp10], 2*" XSTR(BPS) "(%[dst]) \n\t" - "prepend %[temp9], %[temp11], 8 \n\t" - "prepend %[temp10], %[temp1], 8 \n\t" - "usw %[temp9], 1*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp10], 3*" XSTR(BPS) "(%[dst]) \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8), - [temp9]"=&r"(temp9), [temp10]"=&r"(temp10), [temp11]"=&r"(temp11) - : [top]"r"(top), [dst]"r"(dst) - : "memory" - ); -} - -static void VL4(uint8_t* dst, const uint8_t* top) { - int temp0, temp1, temp2, temp3, temp4; - int temp5, temp6, temp7, temp8, temp9; - __asm__ volatile ( - "ulw %[temp0], 0(%[top]) \n\t" - "ulw %[temp1], 4(%[top]) \n\t" - "preceu.ph.qbla %[temp2], %[temp0] \n\t" - "preceu.ph.qbra %[temp0], %[temp0] \n\t" - "preceu.ph.qbl %[temp3], %[temp1] \n\t" - "preceu.ph.qbr %[temp1], %[temp1] \n\t" - "addqh_r.ph %[temp4], %[temp0], %[temp2] \n\t" - "packrl.ph %[temp7], %[temp1], %[temp0] \n\t" - "precrq.ph.w %[temp6], %[temp1], %[temp2] \n\t" - "shll.ph %[temp9], %[temp2], 1 \n\t" - "addqh_r.ph %[temp5], %[temp7], %[temp2] \n\t" - "shll.ph %[temp8], %[temp7], 1 \n\t" - "addu.ph %[temp2], %[temp2], %[temp6] \n\t" - "addu.ph %[temp0], %[temp0], %[temp7] \n\t" - "packrl.ph %[temp7], %[temp3], %[temp1] \n\t" - "addu.ph %[temp6], %[temp1], %[temp3] \n\t" - "addu.ph %[temp2], %[temp2], %[temp8] \n\t" - "addu.ph %[temp0], %[temp0], %[temp9] \n\t" - "shll.ph %[temp7], %[temp7], 1 \n\t" - "shra_r.ph %[temp2], %[temp2], 2 \n\t" - "shra_r.ph %[temp0], %[temp0], 2 \n\t" - "addu.ph %[temp6], %[temp6], %[temp7] \n\t" - "shra_r.ph %[temp6], %[temp6], 2 \n\t" - "precrq.ph.w %[temp8], %[temp5], %[temp4] \n\t" - "append %[temp5], %[temp4], 16 \n\t" - "precrq.ph.w %[temp3], %[temp2], %[temp0] \n\t" - "append %[temp2], %[temp0], 16 \n\t" - "precr.qb.ph %[temp8], %[temp8], %[temp5] \n\t" - "precr.qb.ph %[temp3], %[temp3], %[temp2] \n\t" - "usw %[temp8], 0*" XSTR(BPS) "(%[dst]) \n\t" - "prepend %[temp8], %[temp6], 8 \n\t" - "usw %[temp3], 1*" XSTR(BPS) "(%[dst]) \n\t" - "srl %[temp6], %[temp6], 16 \n\t" - "prepend %[temp3], %[temp6], 8 \n\t" - "usw %[temp8], 2*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp3], 3*" XSTR(BPS) "(%[dst]) \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8), - [temp9]"=&r"(temp9) - : [top]"r"(top), [dst]"r"(dst) - : "memory" - ); -} - -static void HD4(uint8_t* dst, const uint8_t* top) { - int temp0, temp1, temp2, temp3, temp4; - int temp5, temp6, temp7, temp8, temp9; - __asm__ volatile ( - "ulw %[temp0], -5(%[top]) \n\t" - "ulw %[temp1], -1(%[top]) \n\t" - "preceu.ph.qbla %[temp2], %[temp0] \n\t" - "preceu.ph.qbra %[temp0], %[temp0] \n\t" - "preceu.ph.qbl %[temp3], %[temp1] \n\t" - "preceu.ph.qbr %[temp1], %[temp1] \n\t" - "addqh_r.ph %[temp4], %[temp0], %[temp2] \n\t" - "packrl.ph %[temp7], %[temp1], %[temp0] \n\t" - "precrq.ph.w %[temp6], %[temp1], %[temp2] \n\t" - "shll.ph %[temp9], %[temp2], 1 \n\t" - "addqh_r.ph %[temp5], %[temp7], %[temp2] \n\t" - "shll.ph %[temp8], %[temp7], 1 \n\t" - "addu.ph %[temp2], %[temp2], %[temp6] \n\t" - "addu.ph %[temp0], %[temp0], %[temp7] \n\t" - "packrl.ph %[temp7], %[temp3], %[temp1] \n\t" - "addu.ph %[temp6], %[temp1], %[temp3] \n\t" - "addu.ph %[temp2], %[temp2], %[temp8] \n\t" - "addu.ph %[temp0], %[temp0], %[temp9] \n\t" - "shll.ph %[temp7], %[temp7], 1 \n\t" - "shra_r.ph %[temp2], %[temp2], 2 \n\t" - "shra_r.ph %[temp0], %[temp0], 2 \n\t" - "addu.ph %[temp6], %[temp6], %[temp7] \n\t" - "shra_r.ph %[temp6], %[temp6], 2 \n\t" - "precrq.ph.w %[temp1], %[temp2], %[temp5] \n\t" - "precrq.ph.w %[temp3], %[temp0], %[temp4] \n\t" - "precr.qb.ph %[temp7], %[temp6], %[temp1] \n\t" - "precr.qb.ph %[temp6], %[temp1], %[temp3] \n\t" - "usw %[temp7], 0*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp6], 1*" XSTR(BPS) "(%[dst]) \n\t" - "append %[temp2], %[temp5], 16 \n\t" - "append %[temp0], %[temp4], 16 \n\t" - "precr.qb.ph %[temp5], %[temp3], %[temp2] \n\t" - "precr.qb.ph %[temp4], %[temp2], %[temp0] \n\t" - "usw %[temp5], 2*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp4], 3*" XSTR(BPS) "(%[dst]) \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8), - [temp9]"=&r"(temp9) - : [top]"r"(top), [dst]"r"(dst) - : "memory" - ); -} - -static void HU4(uint8_t* dst, const uint8_t* top) { - int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7; - __asm__ volatile ( - "ulw %[temp0], -5(%[top]) \n\t" - "preceu.ph.qbl %[temp1], %[temp0] \n\t" - "preceu.ph.qbr %[temp2], %[temp0] \n\t" - "packrl.ph %[temp3], %[temp1], %[temp2] \n\t" - "replv.qb %[temp7], %[temp2] \n\t" - "addqh_r.ph %[temp4], %[temp1], %[temp3] \n\t" - "addqh_r.ph %[temp5], %[temp3], %[temp2] \n\t" - "shll.ph %[temp6], %[temp3], 1 \n\t" - "addu.ph %[temp3], %[temp2], %[temp3] \n\t" - "addu.ph %[temp6], %[temp1], %[temp6] \n\t" - "shll.ph %[temp0], %[temp2], 1 \n\t" - "addu.ph %[temp6], %[temp6], %[temp2] \n\t" - "addu.ph %[temp0], %[temp3], %[temp0] \n\t" - "shra_r.ph %[temp6], %[temp6], 2 \n\t" - "shra_r.ph %[temp0], %[temp0], 2 \n\t" - "packrl.ph %[temp3], %[temp6], %[temp5] \n\t" - "precrq.ph.w %[temp2], %[temp6], %[temp4] \n\t" - "append %[temp0], %[temp5], 16 \n\t" - "precr.qb.ph %[temp3], %[temp3], %[temp2] \n\t" - "usw %[temp3], 0*" XSTR(BPS) "(%[dst]) \n\t" - "precr.qb.ph %[temp1], %[temp7], %[temp0] \n\t" - "usw %[temp7], 3*" XSTR(BPS) "(%[dst]) \n\t" - "packrl.ph %[temp2], %[temp1], %[temp3] \n\t" - "usw %[temp1], 2*" XSTR(BPS) "(%[dst]) \n\t" - "usw %[temp2], 1*" XSTR(BPS) "(%[dst]) \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7) - : [top]"r"(top), [dst]"r"(dst) - : "memory" - ); -} - -//------------------------------------------------------------------------------ -// Chroma 8x8 prediction (paragraph 12.2) - -static void IntraChromaPreds(uint8_t* dst, const uint8_t* left, - const uint8_t* top) { - // U block - DCMode8(C8DC8 + dst, left, top); - VerticalPred8(C8VE8 + dst, top); - HorizontalPred8(C8HE8 + dst, left); - TrueMotion8(C8TM8 + dst, left, top); - // V block - dst += 8; - if (top) top += 8; - if (left) left += 16; - DCMode8(C8DC8 + dst, left, top); - VerticalPred8(C8VE8 + dst, top); - HorizontalPred8(C8HE8 + dst, left); - TrueMotion8(C8TM8 + dst, left, top); -} - -//------------------------------------------------------------------------------ -// luma 16x16 prediction (paragraph 12.3) - -static void Intra16Preds(uint8_t* dst, - const uint8_t* left, const uint8_t* top) { - DCMode16(I16DC16 + dst, left, top); - VerticalPred16(I16VE16 + dst, top); - HorizontalPred16(I16HE16 + dst, left); - TrueMotion16(I16TM16 + dst, left, top); -} - -// Left samples are top[-5 .. -2], top_left is top[-1], top are -// located at top[0..3], and top right is top[4..7] -static void Intra4Preds(uint8_t* dst, const uint8_t* top) { - DC4(I4DC4 + dst, top); - TM4(I4TM4 + dst, top); - VE4(I4VE4 + dst, top); - HE4(I4HE4 + dst, top); - RD4(I4RD4 + dst, top); - VR4(I4VR4 + dst, top); - LD4(I4LD4 + dst, top); - VL4(I4VL4 + dst, top); - HD4(I4HD4 + dst, top); - HU4(I4HU4 + dst, top); -} - -//------------------------------------------------------------------------------ -// Metric - -#if !defined(WORK_AROUND_GCC) - -#define GET_SSE_INNER(A) \ - "lw %[temp0], " #A "(%[a]) \n\t" \ - "lw %[temp1], " #A "(%[b]) \n\t" \ - "preceu.ph.qbr %[temp2], %[temp0] \n\t" \ - "preceu.ph.qbl %[temp0], %[temp0] \n\t" \ - "preceu.ph.qbr %[temp3], %[temp1] \n\t" \ - "preceu.ph.qbl %[temp1], %[temp1] \n\t" \ - "subq.ph %[temp2], %[temp2], %[temp3] \n\t" \ - "subq.ph %[temp0], %[temp0], %[temp1] \n\t" \ - "dpa.w.ph $ac0, %[temp2], %[temp2] \n\t" \ - "dpa.w.ph $ac0, %[temp0], %[temp0] \n\t" - -#define GET_SSE(A, B, C, D) \ - GET_SSE_INNER(A) \ - GET_SSE_INNER(B) \ - GET_SSE_INNER(C) \ - GET_SSE_INNER(D) - -static int SSE16x16(const uint8_t* a, const uint8_t* b) { - int count; - int temp0, temp1, temp2, temp3; - __asm__ volatile ( - "mult $zero, $zero \n\t" - GET_SSE( 0 * BPS, 4 + 0 * BPS, 8 + 0 * BPS, 12 + 0 * BPS) - GET_SSE( 1 * BPS, 4 + 1 * BPS, 8 + 1 * BPS, 12 + 1 * BPS) - GET_SSE( 2 * BPS, 4 + 2 * BPS, 8 + 2 * BPS, 12 + 2 * BPS) - GET_SSE( 3 * BPS, 4 + 3 * BPS, 8 + 3 * BPS, 12 + 3 * BPS) - GET_SSE( 4 * BPS, 4 + 4 * BPS, 8 + 4 * BPS, 12 + 4 * BPS) - GET_SSE( 5 * BPS, 4 + 5 * BPS, 8 + 5 * BPS, 12 + 5 * BPS) - GET_SSE( 6 * BPS, 4 + 6 * BPS, 8 + 6 * BPS, 12 + 6 * BPS) - GET_SSE( 7 * BPS, 4 + 7 * BPS, 8 + 7 * BPS, 12 + 7 * BPS) - GET_SSE( 8 * BPS, 4 + 8 * BPS, 8 + 8 * BPS, 12 + 8 * BPS) - GET_SSE( 9 * BPS, 4 + 9 * BPS, 8 + 9 * BPS, 12 + 9 * BPS) - GET_SSE(10 * BPS, 4 + 10 * BPS, 8 + 10 * BPS, 12 + 10 * BPS) - GET_SSE(11 * BPS, 4 + 11 * BPS, 8 + 11 * BPS, 12 + 11 * BPS) - GET_SSE(12 * BPS, 4 + 12 * BPS, 8 + 12 * BPS, 12 + 12 * BPS) - GET_SSE(13 * BPS, 4 + 13 * BPS, 8 + 13 * BPS, 12 + 13 * BPS) - GET_SSE(14 * BPS, 4 + 14 * BPS, 8 + 14 * BPS, 12 + 14 * BPS) - GET_SSE(15 * BPS, 4 + 15 * BPS, 8 + 15 * BPS, 12 + 15 * BPS) - "mflo %[count] \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [count]"=&r"(count) - : [a]"r"(a), [b]"r"(b) - : "memory", "hi", "lo" - ); - return count; -} - -static int SSE16x8(const uint8_t* a, const uint8_t* b) { - int count; - int temp0, temp1, temp2, temp3; - __asm__ volatile ( - "mult $zero, $zero \n\t" - GET_SSE( 0 * BPS, 4 + 0 * BPS, 8 + 0 * BPS, 12 + 0 * BPS) - GET_SSE( 1 * BPS, 4 + 1 * BPS, 8 + 1 * BPS, 12 + 1 * BPS) - GET_SSE( 2 * BPS, 4 + 2 * BPS, 8 + 2 * BPS, 12 + 2 * BPS) - GET_SSE( 3 * BPS, 4 + 3 * BPS, 8 + 3 * BPS, 12 + 3 * BPS) - GET_SSE( 4 * BPS, 4 + 4 * BPS, 8 + 4 * BPS, 12 + 4 * BPS) - GET_SSE( 5 * BPS, 4 + 5 * BPS, 8 + 5 * BPS, 12 + 5 * BPS) - GET_SSE( 6 * BPS, 4 + 6 * BPS, 8 + 6 * BPS, 12 + 6 * BPS) - GET_SSE( 7 * BPS, 4 + 7 * BPS, 8 + 7 * BPS, 12 + 7 * BPS) - "mflo %[count] \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [count]"=&r"(count) - : [a]"r"(a), [b]"r"(b) - : "memory", "hi", "lo" - ); - return count; -} - -static int SSE8x8(const uint8_t* a, const uint8_t* b) { - int count; - int temp0, temp1, temp2, temp3; - __asm__ volatile ( - "mult $zero, $zero \n\t" - GET_SSE(0 * BPS, 4 + 0 * BPS, 1 * BPS, 4 + 1 * BPS) - GET_SSE(2 * BPS, 4 + 2 * BPS, 3 * BPS, 4 + 3 * BPS) - GET_SSE(4 * BPS, 4 + 4 * BPS, 5 * BPS, 4 + 5 * BPS) - GET_SSE(6 * BPS, 4 + 6 * BPS, 7 * BPS, 4 + 7 * BPS) - "mflo %[count] \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [count]"=&r"(count) - : [a]"r"(a), [b]"r"(b) - : "memory", "hi", "lo" - ); - return count; -} - -static int SSE4x4(const uint8_t* a, const uint8_t* b) { - int count; - int temp0, temp1, temp2, temp3; - __asm__ volatile ( - "mult $zero, $zero \n\t" - GET_SSE(0 * BPS, 1 * BPS, 2 * BPS, 3 * BPS) - "mflo %[count] \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [count]"=&r"(count) - : [a]"r"(a), [b]"r"(b) - : "memory", "hi", "lo" - ); - return count; -} - -#undef GET_SSE -#undef GET_SSE_INNER - -#endif // !WORK_AROUND_GCC - -#undef FILL_8_OR_16 -#undef FILL_PART -#undef OUTPUT_EARLY_CLOBBER_REGS_17 -#undef MUL_HALF -#undef ABS_X8 -#undef ADD_SUB_HALVES_X4 - -//------------------------------------------------------------------------------ -// Quantization -// - -// macro for one pass through for loop in QuantizeBlock reading 2 values at time -// QUANTDIV macro inlined -// J - offset in bytes (kZigzag[n] * 2) -// K - offset in bytes (kZigzag[n] * 4) -// N - offset in bytes (n * 2) -// N1 - offset in bytes ((n + 1) * 2) -#define QUANTIZE_ONE(J, K, N, N1) \ - "ulw %[temp1], " #J "(%[ppin]) \n\t" \ - "ulw %[temp2], " #J "(%[ppsharpen]) \n\t" \ - "lhu %[temp3], " #K "(%[ppzthresh]) \n\t" \ - "lhu %[temp6], " #K "+4(%[ppzthresh]) \n\t" \ - "absq_s.ph %[temp4], %[temp1] \n\t" \ - "ins %[temp3], %[temp6], 16, 16 \n\t" \ - "addu.ph %[coeff], %[temp4], %[temp2] \n\t" \ - "shra.ph %[sign], %[temp1], 15 \n\t" \ - "li %[level], 0x10001 \n\t" \ - "cmp.lt.ph %[temp3], %[coeff] \n\t" \ - "lhu %[temp1], " #J "(%[ppiq]) \n\t" \ - "pick.ph %[temp5], %[level], $0 \n\t" \ - "lw %[temp2], " #K "(%[ppbias]) \n\t" \ - "beqz %[temp5], 0f \n\t" \ - "lhu %[temp3], " #J "(%[ppq]) \n\t" \ - "beq %[temp5], %[level], 1f \n\t" \ - "andi %[temp5], %[temp5], 0x1 \n\t" \ - "andi %[temp4], %[coeff], 0xffff \n\t" \ - "beqz %[temp5], 2f \n\t" \ - "mul %[level], %[temp4], %[temp1] \n\t" \ - "sh $0, " #J "+2(%[ppin]) \n\t" \ - "sh $0, " #N1 "(%[pout]) \n\t" \ - "addu %[level], %[level], %[temp2] \n\t" \ - "sra %[level], %[level], 17 \n\t" \ - "slt %[temp4], %[max_level], %[level] \n\t" \ - "movn %[level], %[max_level], %[temp4] \n\t" \ - "andi %[temp6], %[sign], 0xffff \n\t" \ - "xor %[level], %[level], %[temp6] \n\t" \ - "subu %[level], %[level], %[temp6] \n\t" \ - "mul %[temp5], %[level], %[temp3] \n\t" \ - "or %[ret], %[ret], %[level] \n\t" \ - "sh %[level], " #N "(%[pout]) \n\t" \ - "sh %[temp5], " #J "(%[ppin]) \n\t" \ - "j 3f \n\t" \ -"2: \n\t" \ - "lhu %[temp1], " #J "+2(%[ppiq]) \n\t" \ - "srl %[temp5], %[coeff], 16 \n\t" \ - "mul %[level], %[temp5], %[temp1] \n\t" \ - "lw %[temp2], " #K "+4(%[ppbias]) \n\t" \ - "lhu %[temp3], " #J "+2(%[ppq]) \n\t" \ - "addu %[level], %[level], %[temp2] \n\t" \ - "sra %[level], %[level], 17 \n\t" \ - "srl %[temp6], %[sign], 16 \n\t" \ - "slt %[temp4], %[max_level], %[level] \n\t" \ - "movn %[level], %[max_level], %[temp4] \n\t" \ - "xor %[level], %[level], %[temp6] \n\t" \ - "subu %[level], %[level], %[temp6] \n\t" \ - "mul %[temp5], %[level], %[temp3] \n\t" \ - "sh $0, " #J "(%[ppin]) \n\t" \ - "sh $0, " #N "(%[pout]) \n\t" \ - "or %[ret], %[ret], %[level] \n\t" \ - "sh %[temp5], " #J "+2(%[ppin]) \n\t" \ - "sh %[level], " #N1 "(%[pout]) \n\t" \ - "j 3f \n\t" \ -"1: \n\t" \ - "lhu %[temp1], " #J "(%[ppiq]) \n\t" \ - "lw %[temp2], " #K "(%[ppbias]) \n\t" \ - "ulw %[temp3], " #J "(%[ppq]) \n\t" \ - "andi %[temp5], %[coeff], 0xffff \n\t" \ - "srl %[temp0], %[coeff], 16 \n\t" \ - "lhu %[temp6], " #J "+2(%[ppiq]) \n\t" \ - "lw %[coeff], " #K "+4(%[ppbias]) \n\t" \ - "mul %[level], %[temp5], %[temp1] \n\t" \ - "mul %[temp4], %[temp0], %[temp6] \n\t" \ - "addu %[level], %[level], %[temp2] \n\t" \ - "addu %[temp4], %[temp4], %[coeff] \n\t" \ - "precrq.ph.w %[level], %[temp4], %[level] \n\t" \ - "shra.ph %[level], %[level], 1 \n\t" \ - "cmp.lt.ph %[max_level1],%[level] \n\t" \ - "pick.ph %[level], %[max_level], %[level] \n\t" \ - "xor %[level], %[level], %[sign] \n\t" \ - "subu.ph %[level], %[level], %[sign] \n\t" \ - "mul.ph %[temp3], %[level], %[temp3] \n\t" \ - "or %[ret], %[ret], %[level] \n\t" \ - "sh %[level], " #N "(%[pout]) \n\t" \ - "srl %[level], %[level], 16 \n\t" \ - "sh %[level], " #N1 "(%[pout]) \n\t" \ - "usw %[temp3], " #J "(%[ppin]) \n\t" \ - "j 3f \n\t" \ -"0: \n\t" \ - "sh $0, " #N "(%[pout]) \n\t" \ - "sh $0, " #N1 "(%[pout]) \n\t" \ - "usw $0, " #J "(%[ppin]) \n\t" \ -"3: \n\t" - -static int QuantizeBlock(int16_t in[16], int16_t out[16], - const VP8Matrix* const mtx) { - int temp0, temp1, temp2, temp3, temp4, temp5,temp6; - int sign, coeff, level; - int max_level = MAX_LEVEL; - int max_level1 = max_level << 16 | max_level; - int ret = 0; - - int16_t* ppin = &in[0]; - int16_t* pout = &out[0]; - const uint16_t* ppsharpen = &mtx->sharpen_[0]; - const uint32_t* ppzthresh = &mtx->zthresh_[0]; - const uint16_t* ppq = &mtx->q_[0]; - const uint16_t* ppiq = &mtx->iq_[0]; - const uint32_t* ppbias = &mtx->bias_[0]; - - __asm__ volatile ( - QUANTIZE_ONE( 0, 0, 0, 2) - QUANTIZE_ONE( 4, 8, 10, 12) - QUANTIZE_ONE( 8, 16, 4, 8) - QUANTIZE_ONE(12, 24, 14, 24) - QUANTIZE_ONE(16, 32, 6, 16) - QUANTIZE_ONE(20, 40, 22, 26) - QUANTIZE_ONE(24, 48, 18, 20) - QUANTIZE_ONE(28, 56, 28, 30) - - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), - [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), - [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [sign]"=&r"(sign), [coeff]"=&r"(coeff), - [level]"=&r"(level), [temp6]"=&r"(temp6), [ret]"+&r"(ret) - : [ppin]"r"(ppin), [pout]"r"(pout), [max_level1]"r"(max_level1), - [ppiq]"r"(ppiq), [max_level]"r"(max_level), - [ppbias]"r"(ppbias), [ppzthresh]"r"(ppzthresh), - [ppsharpen]"r"(ppsharpen), [ppq]"r"(ppq) - : "memory", "hi", "lo" - ); - - return (ret != 0); -} - -static int Quantize2Blocks(int16_t in[32], int16_t out[32], - const VP8Matrix* const mtx) { - int nz; - nz = QuantizeBlock(in + 0 * 16, out + 0 * 16, mtx) << 0; - nz |= QuantizeBlock(in + 1 * 16, out + 1 * 16, mtx) << 1; - return nz; -} - -#undef QUANTIZE_ONE - -// macro for one horizontal pass in FTransformWHT -// temp0..temp7 holds tmp[0]..tmp[15] -// A, B, C, D - offset in bytes to load from in buffer -// TEMP0, TEMP1 - registers for corresponding tmp elements -#define HORIZONTAL_PASS_WHT(A, B, C, D, TEMP0, TEMP1) \ - "lh %[" #TEMP0 "], " #A "(%[in]) \n\t" \ - "lh %[" #TEMP1 "], " #B "(%[in]) \n\t" \ - "lh %[temp8], " #C "(%[in]) \n\t" \ - "lh %[temp9], " #D "(%[in]) \n\t" \ - "ins %[" #TEMP1 "], %[" #TEMP0 "], 16, 16 \n\t" \ - "ins %[temp9], %[temp8], 16, 16 \n\t" \ - "subq.ph %[temp8], %[" #TEMP1 "], %[temp9] \n\t" \ - "addq.ph %[temp9], %[" #TEMP1 "], %[temp9] \n\t" \ - "precrq.ph.w %[" #TEMP0 "], %[temp8], %[temp9] \n\t" \ - "append %[temp8], %[temp9], 16 \n\t" \ - "subq.ph %[" #TEMP1 "], %[" #TEMP0 "], %[temp8] \n\t" \ - "addq.ph %[" #TEMP0 "], %[" #TEMP0 "], %[temp8] \n\t" \ - "rotr %[" #TEMP1 "], %[" #TEMP1 "], 16 \n\t" - -// macro for one vertical pass in FTransformWHT -// temp0..temp7 holds tmp[0]..tmp[15] -// A, B, C, D - offsets in bytes to store to out buffer -// TEMP0, TEMP2, TEMP4 and TEMP6 - registers for corresponding tmp elements -#define VERTICAL_PASS_WHT(A, B, C, D, TEMP0, TEMP2, TEMP4, TEMP6) \ - "addq.ph %[temp8], %[" #TEMP0 "], %[" #TEMP4 "] \n\t" \ - "addq.ph %[temp9], %[" #TEMP2 "], %[" #TEMP6 "] \n\t" \ - "subq.ph %[" #TEMP2 "], %[" #TEMP2 "], %[" #TEMP6 "] \n\t" \ - "subq.ph %[" #TEMP6 "], %[" #TEMP0 "], %[" #TEMP4 "] \n\t" \ - "addqh.ph %[" #TEMP0 "], %[temp8], %[temp9] \n\t" \ - "subqh.ph %[" #TEMP4 "], %[" #TEMP6 "], %[" #TEMP2 "] \n\t" \ - "addqh.ph %[" #TEMP2 "], %[" #TEMP2 "], %[" #TEMP6 "] \n\t" \ - "subqh.ph %[" #TEMP6 "], %[temp8], %[temp9] \n\t" \ - "usw %[" #TEMP0 "], " #A "(%[out]) \n\t" \ - "usw %[" #TEMP2 "], " #B "(%[out]) \n\t" \ - "usw %[" #TEMP4 "], " #C "(%[out]) \n\t" \ - "usw %[" #TEMP6 "], " #D "(%[out]) \n\t" - -static void FTransformWHT(const int16_t* in, int16_t* out) { - int temp0, temp1, temp2, temp3, temp4; - int temp5, temp6, temp7, temp8, temp9; - - __asm__ volatile ( - HORIZONTAL_PASS_WHT( 0, 32, 64, 96, temp0, temp1) - HORIZONTAL_PASS_WHT(128, 160, 192, 224, temp2, temp3) - HORIZONTAL_PASS_WHT(256, 288, 320, 352, temp4, temp5) - HORIZONTAL_PASS_WHT(384, 416, 448, 480, temp6, temp7) - VERTICAL_PASS_WHT(0, 8, 16, 24, temp0, temp2, temp4, temp6) - VERTICAL_PASS_WHT(4, 12, 20, 28, temp1, temp3, temp5, temp7) - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8), - [temp9]"=&r"(temp9) - : [in]"r"(in), [out]"r"(out) - : "memory" - ); -} - -#undef VERTICAL_PASS_WHT -#undef HORIZONTAL_PASS_WHT - -// macro for converting coefficients to bin -// convert 8 coeffs at time -// A, B, C, D - offsets in bytes to load from out buffer -#define CONVERT_COEFFS_TO_BIN(A, B, C, D) \ - "ulw %[temp0], " #A "(%[out]) \n\t" \ - "ulw %[temp1], " #B "(%[out]) \n\t" \ - "ulw %[temp2], " #C "(%[out]) \n\t" \ - "ulw %[temp3], " #D "(%[out]) \n\t" \ - "absq_s.ph %[temp0], %[temp0] \n\t" \ - "absq_s.ph %[temp1], %[temp1] \n\t" \ - "absq_s.ph %[temp2], %[temp2] \n\t" \ - "absq_s.ph %[temp3], %[temp3] \n\t" \ - "shra.ph %[temp0], %[temp0], 3 \n\t" \ - "shra.ph %[temp1], %[temp1], 3 \n\t" \ - "shra.ph %[temp2], %[temp2], 3 \n\t" \ - "shra.ph %[temp3], %[temp3], 3 \n\t" \ - "shll_s.ph %[temp0], %[temp0], 10 \n\t" \ - "shll_s.ph %[temp1], %[temp1], 10 \n\t" \ - "shll_s.ph %[temp2], %[temp2], 10 \n\t" \ - "shll_s.ph %[temp3], %[temp3], 10 \n\t" \ - "shrl.ph %[temp0], %[temp0], 10 \n\t" \ - "shrl.ph %[temp1], %[temp1], 10 \n\t" \ - "shrl.ph %[temp2], %[temp2], 10 \n\t" \ - "shrl.ph %[temp3], %[temp3], 10 \n\t" \ - "shll.ph %[temp0], %[temp0], 2 \n\t" \ - "shll.ph %[temp1], %[temp1], 2 \n\t" \ - "shll.ph %[temp2], %[temp2], 2 \n\t" \ - "shll.ph %[temp3], %[temp3], 2 \n\t" \ - "ext %[temp4], %[temp0], 0, 16 \n\t" \ - "ext %[temp0], %[temp0], 16, 16 \n\t" \ - "addu %[temp4], %[temp4], %[dist] \n\t" \ - "addu %[temp0], %[temp0], %[dist] \n\t" \ - "ext %[temp5], %[temp1], 0, 16 \n\t" \ - "lw %[temp8], 0(%[temp4]) \n\t" \ - "ext %[temp1], %[temp1], 16, 16 \n\t" \ - "addu %[temp5], %[temp5], %[dist] \n\t" \ - "addiu %[temp8], %[temp8], 1 \n\t" \ - "sw %[temp8], 0(%[temp4]) \n\t" \ - "lw %[temp8], 0(%[temp0]) \n\t" \ - "addu %[temp1], %[temp1], %[dist] \n\t" \ - "ext %[temp6], %[temp2], 0, 16 \n\t" \ - "addiu %[temp8], %[temp8], 1 \n\t" \ - "sw %[temp8], 0(%[temp0]) \n\t" \ - "lw %[temp8], 0(%[temp5]) \n\t" \ - "ext %[temp2], %[temp2], 16, 16 \n\t" \ - "addu %[temp6], %[temp6], %[dist] \n\t" \ - "addiu %[temp8], %[temp8], 1 \n\t" \ - "sw %[temp8], 0(%[temp5]) \n\t" \ - "lw %[temp8], 0(%[temp1]) \n\t" \ - "addu %[temp2], %[temp2], %[dist] \n\t" \ - "ext %[temp7], %[temp3], 0, 16 \n\t" \ - "addiu %[temp8], %[temp8], 1 \n\t" \ - "sw %[temp8], 0(%[temp1]) \n\t" \ - "lw %[temp8], 0(%[temp6]) \n\t" \ - "ext %[temp3], %[temp3], 16, 16 \n\t" \ - "addu %[temp7], %[temp7], %[dist] \n\t" \ - "addiu %[temp8], %[temp8], 1 \n\t" \ - "sw %[temp8], 0(%[temp6]) \n\t" \ - "lw %[temp8], 0(%[temp2]) \n\t" \ - "addu %[temp3], %[temp3], %[dist] \n\t" \ - "addiu %[temp8], %[temp8], 1 \n\t" \ - "sw %[temp8], 0(%[temp2]) \n\t" \ - "lw %[temp8], 0(%[temp7]) \n\t" \ - "addiu %[temp8], %[temp8], 1 \n\t" \ - "sw %[temp8], 0(%[temp7]) \n\t" \ - "lw %[temp8], 0(%[temp3]) \n\t" \ - "addiu %[temp8], %[temp8], 1 \n\t" \ - "sw %[temp8], 0(%[temp3]) \n\t" - -static void CollectHistogram(const uint8_t* ref, const uint8_t* pred, - int start_block, int end_block, - VP8Histogram* const histo) { - int j; - int distribution[MAX_COEFF_THRESH + 1] = { 0 }; - const int max_coeff = (MAX_COEFF_THRESH << 16) + MAX_COEFF_THRESH; - for (j = start_block; j < end_block; ++j) { - int16_t out[16]; - int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7, temp8; - - VP8FTransform(ref + VP8DspScan[j], pred + VP8DspScan[j], out); - - // Convert coefficients to bin. - __asm__ volatile ( - CONVERT_COEFFS_TO_BIN( 0, 4, 8, 12) - CONVERT_COEFFS_TO_BIN(16, 20, 24, 28) - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8) - : [dist]"r"(distribution), [out]"r"(out), [max_coeff]"r"(max_coeff) - : "memory" - ); - } - VP8SetHistogramData(distribution, histo); -} - -#undef CONVERT_COEFFS_TO_BIN - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8EncDspInitMIPSdspR2(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitMIPSdspR2(void) { - VP8FTransform = FTransform; - VP8ITransform = ITransform; - VP8TDisto4x4 = Disto4x4; - VP8TDisto16x16 = Disto16x16; - VP8EncPredLuma16 = Intra16Preds; - VP8EncPredChroma8 = IntraChromaPreds; - VP8EncPredLuma4 = Intra4Preds; -#if !defined(WORK_AROUND_GCC) - VP8SSE16x16 = SSE16x16; - VP8SSE8x8 = SSE8x8; - VP8SSE16x8 = SSE16x8; - VP8SSE4x4 = SSE4x4; -#endif - VP8EncQuantizeBlock = QuantizeBlock; - VP8EncQuantize2Blocks = Quantize2Blocks; - VP8FTransformWHT = FTransformWHT; - VP8CollectHistogram = CollectHistogram; -} - -#else // !WEBP_USE_MIPS_DSP_R2 - -WEBP_DSP_INIT_STUB(VP8EncDspInitMIPSdspR2) - -#endif // WEBP_USE_MIPS_DSP_R2 diff --git a/drivers/webp/dsp/enc_neon.c b/drivers/webp/dsp/enc_neon.c deleted file mode 100644 index 46f6bf9a33..0000000000 --- a/drivers/webp/dsp/enc_neon.c +++ /dev/null @@ -1,920 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// ARM NEON version of speed-critical encoding functions. -// -// adapted from libvpx (http://www.webmproject.org/code/) - -#include "./dsp.h" - -#if defined(WEBP_USE_NEON) - -#include <assert.h> - -#include "./neon.h" -#include "../enc/vp8enci.h" - -//------------------------------------------------------------------------------ -// Transforms (Paragraph 14.4) - -// Inverse transform. -// This code is pretty much the same as TransformOne in the dec_neon.c, except -// for subtraction to *ref. See the comments there for algorithmic explanations. - -static const int16_t kC1 = 20091; -static const int16_t kC2 = 17734; // half of kC2, actually. See comment above. - -// This code works but is *slower* than the inlined-asm version below -// (with gcc-4.6). So we disable it for now. Later, it'll be conditional to -// WEBP_USE_INTRINSICS define. -// With gcc-4.8, it's a little faster speed than inlined-assembly. -#if defined(WEBP_USE_INTRINSICS) - -// Treats 'v' as an uint8x8_t and zero extends to an int16x8_t. -static WEBP_INLINE int16x8_t ConvertU8ToS16(uint32x2_t v) { - return vreinterpretq_s16_u16(vmovl_u8(vreinterpret_u8_u32(v))); -} - -// Performs unsigned 8b saturation on 'dst01' and 'dst23' storing the result -// to the corresponding rows of 'dst'. -static WEBP_INLINE void SaturateAndStore4x4(uint8_t* const dst, - const int16x8_t dst01, - const int16x8_t dst23) { - // Unsigned saturate to 8b. - const uint8x8_t dst01_u8 = vqmovun_s16(dst01); - const uint8x8_t dst23_u8 = vqmovun_s16(dst23); - - // Store the results. - vst1_lane_u32((uint32_t*)(dst + 0 * BPS), vreinterpret_u32_u8(dst01_u8), 0); - vst1_lane_u32((uint32_t*)(dst + 1 * BPS), vreinterpret_u32_u8(dst01_u8), 1); - vst1_lane_u32((uint32_t*)(dst + 2 * BPS), vreinterpret_u32_u8(dst23_u8), 0); - vst1_lane_u32((uint32_t*)(dst + 3 * BPS), vreinterpret_u32_u8(dst23_u8), 1); -} - -static WEBP_INLINE void Add4x4(const int16x8_t row01, const int16x8_t row23, - const uint8_t* const ref, uint8_t* const dst) { - uint32x2_t dst01 = vdup_n_u32(0); - uint32x2_t dst23 = vdup_n_u32(0); - - // Load the source pixels. - dst01 = vld1_lane_u32((uint32_t*)(ref + 0 * BPS), dst01, 0); - dst23 = vld1_lane_u32((uint32_t*)(ref + 2 * BPS), dst23, 0); - dst01 = vld1_lane_u32((uint32_t*)(ref + 1 * BPS), dst01, 1); - dst23 = vld1_lane_u32((uint32_t*)(ref + 3 * BPS), dst23, 1); - - { - // Convert to 16b. - const int16x8_t dst01_s16 = ConvertU8ToS16(dst01); - const int16x8_t dst23_s16 = ConvertU8ToS16(dst23); - - // Descale with rounding. - const int16x8_t out01 = vrsraq_n_s16(dst01_s16, row01, 3); - const int16x8_t out23 = vrsraq_n_s16(dst23_s16, row23, 3); - // Add the inverse transform. - SaturateAndStore4x4(dst, out01, out23); - } -} - -static WEBP_INLINE void Transpose8x2(const int16x8_t in0, const int16x8_t in1, - int16x8x2_t* const out) { - // a0 a1 a2 a3 | b0 b1 b2 b3 => a0 b0 c0 d0 | a1 b1 c1 d1 - // c0 c1 c2 c3 | d0 d1 d2 d3 a2 b2 c2 d2 | a3 b3 c3 d3 - const int16x8x2_t tmp0 = vzipq_s16(in0, in1); // a0 c0 a1 c1 a2 c2 ... - // b0 d0 b1 d1 b2 d2 ... - *out = vzipq_s16(tmp0.val[0], tmp0.val[1]); -} - -static WEBP_INLINE void TransformPass(int16x8x2_t* const rows) { - // {rows} = in0 | in4 - // in8 | in12 - // B1 = in4 | in12 - const int16x8_t B1 = - vcombine_s16(vget_high_s16(rows->val[0]), vget_high_s16(rows->val[1])); - // C0 = kC1 * in4 | kC1 * in12 - // C1 = kC2 * in4 | kC2 * in12 - const int16x8_t C0 = vsraq_n_s16(B1, vqdmulhq_n_s16(B1, kC1), 1); - const int16x8_t C1 = vqdmulhq_n_s16(B1, kC2); - const int16x4_t a = vqadd_s16(vget_low_s16(rows->val[0]), - vget_low_s16(rows->val[1])); // in0 + in8 - const int16x4_t b = vqsub_s16(vget_low_s16(rows->val[0]), - vget_low_s16(rows->val[1])); // in0 - in8 - // c = kC2 * in4 - kC1 * in12 - // d = kC1 * in4 + kC2 * in12 - const int16x4_t c = vqsub_s16(vget_low_s16(C1), vget_high_s16(C0)); - const int16x4_t d = vqadd_s16(vget_low_s16(C0), vget_high_s16(C1)); - const int16x8_t D0 = vcombine_s16(a, b); // D0 = a | b - const int16x8_t D1 = vcombine_s16(d, c); // D1 = d | c - const int16x8_t E0 = vqaddq_s16(D0, D1); // a+d | b+c - const int16x8_t E_tmp = vqsubq_s16(D0, D1); // a-d | b-c - const int16x8_t E1 = vcombine_s16(vget_high_s16(E_tmp), vget_low_s16(E_tmp)); - Transpose8x2(E0, E1, rows); -} - -static void ITransformOne(const uint8_t* ref, - const int16_t* in, uint8_t* dst) { - int16x8x2_t rows; - INIT_VECTOR2(rows, vld1q_s16(in + 0), vld1q_s16(in + 8)); - TransformPass(&rows); - TransformPass(&rows); - Add4x4(rows.val[0], rows.val[1], ref, dst); -} - -#else - -static void ITransformOne(const uint8_t* ref, - const int16_t* in, uint8_t* dst) { - const int kBPS = BPS; - const int16_t kC1C2[] = { kC1, kC2, 0, 0 }; - - __asm__ volatile ( - "vld1.16 {q1, q2}, [%[in]] \n" - "vld1.16 {d0}, [%[kC1C2]] \n" - - // d2: in[0] - // d3: in[8] - // d4: in[4] - // d5: in[12] - "vswp d3, d4 \n" - - // q8 = {in[4], in[12]} * kC1 * 2 >> 16 - // q9 = {in[4], in[12]} * kC2 >> 16 - "vqdmulh.s16 q8, q2, d0[0] \n" - "vqdmulh.s16 q9, q2, d0[1] \n" - - // d22 = a = in[0] + in[8] - // d23 = b = in[0] - in[8] - "vqadd.s16 d22, d2, d3 \n" - "vqsub.s16 d23, d2, d3 \n" - - // q8 = in[4]/[12] * kC1 >> 16 - "vshr.s16 q8, q8, #1 \n" - - // Add {in[4], in[12]} back after the multiplication. - "vqadd.s16 q8, q2, q8 \n" - - // d20 = c = in[4]*kC2 - in[12]*kC1 - // d21 = d = in[4]*kC1 + in[12]*kC2 - "vqsub.s16 d20, d18, d17 \n" - "vqadd.s16 d21, d19, d16 \n" - - // d2 = tmp[0] = a + d - // d3 = tmp[1] = b + c - // d4 = tmp[2] = b - c - // d5 = tmp[3] = a - d - "vqadd.s16 d2, d22, d21 \n" - "vqadd.s16 d3, d23, d20 \n" - "vqsub.s16 d4, d23, d20 \n" - "vqsub.s16 d5, d22, d21 \n" - - "vzip.16 q1, q2 \n" - "vzip.16 q1, q2 \n" - - "vswp d3, d4 \n" - - // q8 = {tmp[4], tmp[12]} * kC1 * 2 >> 16 - // q9 = {tmp[4], tmp[12]} * kC2 >> 16 - "vqdmulh.s16 q8, q2, d0[0] \n" - "vqdmulh.s16 q9, q2, d0[1] \n" - - // d22 = a = tmp[0] + tmp[8] - // d23 = b = tmp[0] - tmp[8] - "vqadd.s16 d22, d2, d3 \n" - "vqsub.s16 d23, d2, d3 \n" - - "vshr.s16 q8, q8, #1 \n" - "vqadd.s16 q8, q2, q8 \n" - - // d20 = c = in[4]*kC2 - in[12]*kC1 - // d21 = d = in[4]*kC1 + in[12]*kC2 - "vqsub.s16 d20, d18, d17 \n" - "vqadd.s16 d21, d19, d16 \n" - - // d2 = tmp[0] = a + d - // d3 = tmp[1] = b + c - // d4 = tmp[2] = b - c - // d5 = tmp[3] = a - d - "vqadd.s16 d2, d22, d21 \n" - "vqadd.s16 d3, d23, d20 \n" - "vqsub.s16 d4, d23, d20 \n" - "vqsub.s16 d5, d22, d21 \n" - - "vld1.32 d6[0], [%[ref]], %[kBPS] \n" - "vld1.32 d6[1], [%[ref]], %[kBPS] \n" - "vld1.32 d7[0], [%[ref]], %[kBPS] \n" - "vld1.32 d7[1], [%[ref]], %[kBPS] \n" - - "sub %[ref], %[ref], %[kBPS], lsl #2 \n" - - // (val) + 4 >> 3 - "vrshr.s16 d2, d2, #3 \n" - "vrshr.s16 d3, d3, #3 \n" - "vrshr.s16 d4, d4, #3 \n" - "vrshr.s16 d5, d5, #3 \n" - - "vzip.16 q1, q2 \n" - "vzip.16 q1, q2 \n" - - // Must accumulate before saturating - "vmovl.u8 q8, d6 \n" - "vmovl.u8 q9, d7 \n" - - "vqadd.s16 q1, q1, q8 \n" - "vqadd.s16 q2, q2, q9 \n" - - "vqmovun.s16 d0, q1 \n" - "vqmovun.s16 d1, q2 \n" - - "vst1.32 d0[0], [%[dst]], %[kBPS] \n" - "vst1.32 d0[1], [%[dst]], %[kBPS] \n" - "vst1.32 d1[0], [%[dst]], %[kBPS] \n" - "vst1.32 d1[1], [%[dst]] \n" - - : [in] "+r"(in), [dst] "+r"(dst) // modified registers - : [kBPS] "r"(kBPS), [kC1C2] "r"(kC1C2), [ref] "r"(ref) // constants - : "memory", "q0", "q1", "q2", "q8", "q9", "q10", "q11" // clobbered - ); -} - -#endif // WEBP_USE_INTRINSICS - -static void ITransform(const uint8_t* ref, - const int16_t* in, uint8_t* dst, int do_two) { - ITransformOne(ref, in, dst); - if (do_two) { - ITransformOne(ref + 4, in + 16, dst + 4); - } -} - -// Load all 4x4 pixels into a single uint8x16_t variable. -static uint8x16_t Load4x4(const uint8_t* src) { - uint32x4_t out = vdupq_n_u32(0); - out = vld1q_lane_u32((const uint32_t*)(src + 0 * BPS), out, 0); - out = vld1q_lane_u32((const uint32_t*)(src + 1 * BPS), out, 1); - out = vld1q_lane_u32((const uint32_t*)(src + 2 * BPS), out, 2); - out = vld1q_lane_u32((const uint32_t*)(src + 3 * BPS), out, 3); - return vreinterpretq_u8_u32(out); -} - -// Forward transform. - -#if defined(WEBP_USE_INTRINSICS) - -static WEBP_INLINE void Transpose4x4_S16(const int16x4_t A, const int16x4_t B, - const int16x4_t C, const int16x4_t D, - int16x8_t* const out01, - int16x8_t* const out32) { - const int16x4x2_t AB = vtrn_s16(A, B); - const int16x4x2_t CD = vtrn_s16(C, D); - const int32x2x2_t tmp02 = vtrn_s32(vreinterpret_s32_s16(AB.val[0]), - vreinterpret_s32_s16(CD.val[0])); - const int32x2x2_t tmp13 = vtrn_s32(vreinterpret_s32_s16(AB.val[1]), - vreinterpret_s32_s16(CD.val[1])); - *out01 = vreinterpretq_s16_s64( - vcombine_s64(vreinterpret_s64_s32(tmp02.val[0]), - vreinterpret_s64_s32(tmp13.val[0]))); - *out32 = vreinterpretq_s16_s64( - vcombine_s64(vreinterpret_s64_s32(tmp13.val[1]), - vreinterpret_s64_s32(tmp02.val[1]))); -} - -static WEBP_INLINE int16x8_t DiffU8ToS16(const uint8x8_t a, - const uint8x8_t b) { - return vreinterpretq_s16_u16(vsubl_u8(a, b)); -} - -static void FTransform(const uint8_t* src, const uint8_t* ref, - int16_t* out) { - int16x8_t d0d1, d3d2; // working 4x4 int16 variables - { - const uint8x16_t S0 = Load4x4(src); - const uint8x16_t R0 = Load4x4(ref); - const int16x8_t D0D1 = DiffU8ToS16(vget_low_u8(S0), vget_low_u8(R0)); - const int16x8_t D2D3 = DiffU8ToS16(vget_high_u8(S0), vget_high_u8(R0)); - const int16x4_t D0 = vget_low_s16(D0D1); - const int16x4_t D1 = vget_high_s16(D0D1); - const int16x4_t D2 = vget_low_s16(D2D3); - const int16x4_t D3 = vget_high_s16(D2D3); - Transpose4x4_S16(D0, D1, D2, D3, &d0d1, &d3d2); - } - { // 1rst pass - const int32x4_t kCst937 = vdupq_n_s32(937); - const int32x4_t kCst1812 = vdupq_n_s32(1812); - const int16x8_t a0a1 = vaddq_s16(d0d1, d3d2); // d0+d3 | d1+d2 (=a0|a1) - const int16x8_t a3a2 = vsubq_s16(d0d1, d3d2); // d0-d3 | d1-d2 (=a3|a2) - const int16x8_t a0a1_2 = vshlq_n_s16(a0a1, 3); - const int16x4_t tmp0 = vadd_s16(vget_low_s16(a0a1_2), - vget_high_s16(a0a1_2)); - const int16x4_t tmp2 = vsub_s16(vget_low_s16(a0a1_2), - vget_high_s16(a0a1_2)); - const int32x4_t a3_2217 = vmull_n_s16(vget_low_s16(a3a2), 2217); - const int32x4_t a2_2217 = vmull_n_s16(vget_high_s16(a3a2), 2217); - const int32x4_t a2_p_a3 = vmlal_n_s16(a2_2217, vget_low_s16(a3a2), 5352); - const int32x4_t a3_m_a2 = vmlsl_n_s16(a3_2217, vget_high_s16(a3a2), 5352); - const int16x4_t tmp1 = vshrn_n_s32(vaddq_s32(a2_p_a3, kCst1812), 9); - const int16x4_t tmp3 = vshrn_n_s32(vaddq_s32(a3_m_a2, kCst937), 9); - Transpose4x4_S16(tmp0, tmp1, tmp2, tmp3, &d0d1, &d3d2); - } - { // 2nd pass - // the (1<<16) addition is for the replacement: a3!=0 <-> 1-(a3==0) - const int32x4_t kCst12000 = vdupq_n_s32(12000 + (1 << 16)); - const int32x4_t kCst51000 = vdupq_n_s32(51000); - const int16x8_t a0a1 = vaddq_s16(d0d1, d3d2); // d0+d3 | d1+d2 (=a0|a1) - const int16x8_t a3a2 = vsubq_s16(d0d1, d3d2); // d0-d3 | d1-d2 (=a3|a2) - const int16x4_t a0_k7 = vadd_s16(vget_low_s16(a0a1), vdup_n_s16(7)); - const int16x4_t out0 = vshr_n_s16(vadd_s16(a0_k7, vget_high_s16(a0a1)), 4); - const int16x4_t out2 = vshr_n_s16(vsub_s16(a0_k7, vget_high_s16(a0a1)), 4); - const int32x4_t a3_2217 = vmull_n_s16(vget_low_s16(a3a2), 2217); - const int32x4_t a2_2217 = vmull_n_s16(vget_high_s16(a3a2), 2217); - const int32x4_t a2_p_a3 = vmlal_n_s16(a2_2217, vget_low_s16(a3a2), 5352); - const int32x4_t a3_m_a2 = vmlsl_n_s16(a3_2217, vget_high_s16(a3a2), 5352); - const int16x4_t tmp1 = vaddhn_s32(a2_p_a3, kCst12000); - const int16x4_t out3 = vaddhn_s32(a3_m_a2, kCst51000); - const int16x4_t a3_eq_0 = - vreinterpret_s16_u16(vceq_s16(vget_low_s16(a3a2), vdup_n_s16(0))); - const int16x4_t out1 = vadd_s16(tmp1, a3_eq_0); - vst1_s16(out + 0, out0); - vst1_s16(out + 4, out1); - vst1_s16(out + 8, out2); - vst1_s16(out + 12, out3); - } -} - -#else - -// adapted from vp8/encoder/arm/neon/shortfdct_neon.asm -static const int16_t kCoeff16[] = { - 5352, 5352, 5352, 5352, 2217, 2217, 2217, 2217 -}; -static const int32_t kCoeff32[] = { - 1812, 1812, 1812, 1812, - 937, 937, 937, 937, - 12000, 12000, 12000, 12000, - 51000, 51000, 51000, 51000 -}; - -static void FTransform(const uint8_t* src, const uint8_t* ref, - int16_t* out) { - const int kBPS = BPS; - const uint8_t* src_ptr = src; - const uint8_t* ref_ptr = ref; - const int16_t* coeff16 = kCoeff16; - const int32_t* coeff32 = kCoeff32; - - __asm__ volatile ( - // load src into q4, q5 in high half - "vld1.8 {d8}, [%[src_ptr]], %[kBPS] \n" - "vld1.8 {d10}, [%[src_ptr]], %[kBPS] \n" - "vld1.8 {d9}, [%[src_ptr]], %[kBPS] \n" - "vld1.8 {d11}, [%[src_ptr]] \n" - - // load ref into q6, q7 in high half - "vld1.8 {d12}, [%[ref_ptr]], %[kBPS] \n" - "vld1.8 {d14}, [%[ref_ptr]], %[kBPS] \n" - "vld1.8 {d13}, [%[ref_ptr]], %[kBPS] \n" - "vld1.8 {d15}, [%[ref_ptr]] \n" - - // Pack the high values in to q4 and q6 - "vtrn.32 q4, q5 \n" - "vtrn.32 q6, q7 \n" - - // d[0-3] = src - ref - "vsubl.u8 q0, d8, d12 \n" - "vsubl.u8 q1, d9, d13 \n" - - // load coeff16 into q8(d16=5352, d17=2217) - "vld1.16 {q8}, [%[coeff16]] \n" - - // load coeff32 high half into q9 = 1812, q10 = 937 - "vld1.32 {q9, q10}, [%[coeff32]]! \n" - - // load coeff32 low half into q11=12000, q12=51000 - "vld1.32 {q11,q12}, [%[coeff32]] \n" - - // part 1 - // Transpose. Register dN is the same as dN in C - "vtrn.32 d0, d2 \n" - "vtrn.32 d1, d3 \n" - "vtrn.16 d0, d1 \n" - "vtrn.16 d2, d3 \n" - - "vadd.s16 d4, d0, d3 \n" // a0 = d0 + d3 - "vadd.s16 d5, d1, d2 \n" // a1 = d1 + d2 - "vsub.s16 d6, d1, d2 \n" // a2 = d1 - d2 - "vsub.s16 d7, d0, d3 \n" // a3 = d0 - d3 - - "vadd.s16 d0, d4, d5 \n" // a0 + a1 - "vshl.s16 d0, d0, #3 \n" // temp[0+i*4] = (a0+a1) << 3 - "vsub.s16 d2, d4, d5 \n" // a0 - a1 - "vshl.s16 d2, d2, #3 \n" // (temp[2+i*4] = (a0-a1) << 3 - - "vmlal.s16 q9, d7, d16 \n" // a3*5352 + 1812 - "vmlal.s16 q10, d7, d17 \n" // a3*2217 + 937 - "vmlal.s16 q9, d6, d17 \n" // a2*2217 + a3*5352 + 1812 - "vmlsl.s16 q10, d6, d16 \n" // a3*2217 + 937 - a2*5352 - - // temp[1+i*4] = (d2*2217 + d3*5352 + 1812) >> 9 - // temp[3+i*4] = (d3*2217 + 937 - d2*5352) >> 9 - "vshrn.s32 d1, q9, #9 \n" - "vshrn.s32 d3, q10, #9 \n" - - // part 2 - // transpose d0=ip[0], d1=ip[4], d2=ip[8], d3=ip[12] - "vtrn.32 d0, d2 \n" - "vtrn.32 d1, d3 \n" - "vtrn.16 d0, d1 \n" - "vtrn.16 d2, d3 \n" - - "vmov.s16 d26, #7 \n" - - "vadd.s16 d4, d0, d3 \n" // a1 = ip[0] + ip[12] - "vadd.s16 d5, d1, d2 \n" // b1 = ip[4] + ip[8] - "vsub.s16 d6, d1, d2 \n" // c1 = ip[4] - ip[8] - "vadd.s16 d4, d4, d26 \n" // a1 + 7 - "vsub.s16 d7, d0, d3 \n" // d1 = ip[0] - ip[12] - - "vadd.s16 d0, d4, d5 \n" // op[0] = a1 + b1 + 7 - "vsub.s16 d2, d4, d5 \n" // op[8] = a1 - b1 + 7 - - "vmlal.s16 q11, d7, d16 \n" // d1*5352 + 12000 - "vmlal.s16 q12, d7, d17 \n" // d1*2217 + 51000 - - "vceq.s16 d4, d7, #0 \n" - - "vshr.s16 d0, d0, #4 \n" - "vshr.s16 d2, d2, #4 \n" - - "vmlal.s16 q11, d6, d17 \n" // c1*2217 + d1*5352 + 12000 - "vmlsl.s16 q12, d6, d16 \n" // d1*2217 - c1*5352 + 51000 - - "vmvn d4, d4 \n" // !(d1 == 0) - // op[4] = (c1*2217 + d1*5352 + 12000)>>16 - "vshrn.s32 d1, q11, #16 \n" - // op[4] += (d1!=0) - "vsub.s16 d1, d1, d4 \n" - // op[12]= (d1*2217 - c1*5352 + 51000)>>16 - "vshrn.s32 d3, q12, #16 \n" - - // set result to out array - "vst1.16 {q0, q1}, [%[out]] \n" - : [src_ptr] "+r"(src_ptr), [ref_ptr] "+r"(ref_ptr), - [coeff32] "+r"(coeff32) // modified registers - : [kBPS] "r"(kBPS), [coeff16] "r"(coeff16), - [out] "r"(out) // constants - : "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7", "q8", "q9", - "q10", "q11", "q12", "q13" // clobbered - ); -} - -#endif - -#define LOAD_LANE_16b(VALUE, LANE) do { \ - (VALUE) = vld1_lane_s16(src, (VALUE), (LANE)); \ - src += stride; \ -} while (0) - -static void FTransformWHT(const int16_t* src, int16_t* out) { - const int stride = 16; - const int16x4_t zero = vdup_n_s16(0); - int32x4x4_t tmp0; - int16x4x4_t in; - INIT_VECTOR4(in, zero, zero, zero, zero); - LOAD_LANE_16b(in.val[0], 0); - LOAD_LANE_16b(in.val[1], 0); - LOAD_LANE_16b(in.val[2], 0); - LOAD_LANE_16b(in.val[3], 0); - LOAD_LANE_16b(in.val[0], 1); - LOAD_LANE_16b(in.val[1], 1); - LOAD_LANE_16b(in.val[2], 1); - LOAD_LANE_16b(in.val[3], 1); - LOAD_LANE_16b(in.val[0], 2); - LOAD_LANE_16b(in.val[1], 2); - LOAD_LANE_16b(in.val[2], 2); - LOAD_LANE_16b(in.val[3], 2); - LOAD_LANE_16b(in.val[0], 3); - LOAD_LANE_16b(in.val[1], 3); - LOAD_LANE_16b(in.val[2], 3); - LOAD_LANE_16b(in.val[3], 3); - - { - // a0 = in[0 * 16] + in[2 * 16] - // a1 = in[1 * 16] + in[3 * 16] - // a2 = in[1 * 16] - in[3 * 16] - // a3 = in[0 * 16] - in[2 * 16] - const int32x4_t a0 = vaddl_s16(in.val[0], in.val[2]); - const int32x4_t a1 = vaddl_s16(in.val[1], in.val[3]); - const int32x4_t a2 = vsubl_s16(in.val[1], in.val[3]); - const int32x4_t a3 = vsubl_s16(in.val[0], in.val[2]); - tmp0.val[0] = vaddq_s32(a0, a1); - tmp0.val[1] = vaddq_s32(a3, a2); - tmp0.val[2] = vsubq_s32(a3, a2); - tmp0.val[3] = vsubq_s32(a0, a1); - } - { - const int32x4x4_t tmp1 = Transpose4x4(tmp0); - // a0 = tmp[0 + i] + tmp[ 8 + i] - // a1 = tmp[4 + i] + tmp[12 + i] - // a2 = tmp[4 + i] - tmp[12 + i] - // a3 = tmp[0 + i] - tmp[ 8 + i] - const int32x4_t a0 = vaddq_s32(tmp1.val[0], tmp1.val[2]); - const int32x4_t a1 = vaddq_s32(tmp1.val[1], tmp1.val[3]); - const int32x4_t a2 = vsubq_s32(tmp1.val[1], tmp1.val[3]); - const int32x4_t a3 = vsubq_s32(tmp1.val[0], tmp1.val[2]); - const int32x4_t b0 = vhaddq_s32(a0, a1); // (a0 + a1) >> 1 - const int32x4_t b1 = vhaddq_s32(a3, a2); // (a3 + a2) >> 1 - const int32x4_t b2 = vhsubq_s32(a3, a2); // (a3 - a2) >> 1 - const int32x4_t b3 = vhsubq_s32(a0, a1); // (a0 - a1) >> 1 - const int16x4_t out0 = vmovn_s32(b0); - const int16x4_t out1 = vmovn_s32(b1); - const int16x4_t out2 = vmovn_s32(b2); - const int16x4_t out3 = vmovn_s32(b3); - - vst1_s16(out + 0, out0); - vst1_s16(out + 4, out1); - vst1_s16(out + 8, out2); - vst1_s16(out + 12, out3); - } -} -#undef LOAD_LANE_16b - -//------------------------------------------------------------------------------ -// Texture distortion -// -// We try to match the spectral content (weighted) between source and -// reconstructed samples. - -// a 0123, b 0123 -// a 4567, b 4567 -// a 89ab, b 89ab -// a cdef, b cdef -// -// transpose -// -// a 048c, b 048c -// a 159d, b 159d -// a 26ae, b 26ae -// a 37bf, b 37bf -// -static WEBP_INLINE int16x8x4_t DistoTranspose4x4S16(int16x8x4_t q4_in) { - const int16x8x2_t q2_tmp0 = vtrnq_s16(q4_in.val[0], q4_in.val[1]); - const int16x8x2_t q2_tmp1 = vtrnq_s16(q4_in.val[2], q4_in.val[3]); - const int32x4x2_t q2_tmp2 = vtrnq_s32(vreinterpretq_s32_s16(q2_tmp0.val[0]), - vreinterpretq_s32_s16(q2_tmp1.val[0])); - const int32x4x2_t q2_tmp3 = vtrnq_s32(vreinterpretq_s32_s16(q2_tmp0.val[1]), - vreinterpretq_s32_s16(q2_tmp1.val[1])); - q4_in.val[0] = vreinterpretq_s16_s32(q2_tmp2.val[0]); - q4_in.val[2] = vreinterpretq_s16_s32(q2_tmp2.val[1]); - q4_in.val[1] = vreinterpretq_s16_s32(q2_tmp3.val[0]); - q4_in.val[3] = vreinterpretq_s16_s32(q2_tmp3.val[1]); - return q4_in; -} - -static WEBP_INLINE int16x8x4_t DistoHorizontalPass(const int16x8x4_t q4_in) { - // {a0, a1} = {in[0] + in[2], in[1] + in[3]} - // {a3, a2} = {in[0] - in[2], in[1] - in[3]} - const int16x8_t q_a0 = vaddq_s16(q4_in.val[0], q4_in.val[2]); - const int16x8_t q_a1 = vaddq_s16(q4_in.val[1], q4_in.val[3]); - const int16x8_t q_a3 = vsubq_s16(q4_in.val[0], q4_in.val[2]); - const int16x8_t q_a2 = vsubq_s16(q4_in.val[1], q4_in.val[3]); - int16x8x4_t q4_out; - // tmp[0] = a0 + a1 - // tmp[1] = a3 + a2 - // tmp[2] = a3 - a2 - // tmp[3] = a0 - a1 - INIT_VECTOR4(q4_out, - vabsq_s16(vaddq_s16(q_a0, q_a1)), - vabsq_s16(vaddq_s16(q_a3, q_a2)), - vabdq_s16(q_a3, q_a2), vabdq_s16(q_a0, q_a1)); - return q4_out; -} - -static WEBP_INLINE int16x8x4_t DistoVerticalPass(const uint8x8x4_t q4_in) { - const int16x8_t q_a0 = vreinterpretq_s16_u16(vaddl_u8(q4_in.val[0], - q4_in.val[2])); - const int16x8_t q_a1 = vreinterpretq_s16_u16(vaddl_u8(q4_in.val[1], - q4_in.val[3])); - const int16x8_t q_a2 = vreinterpretq_s16_u16(vsubl_u8(q4_in.val[1], - q4_in.val[3])); - const int16x8_t q_a3 = vreinterpretq_s16_u16(vsubl_u8(q4_in.val[0], - q4_in.val[2])); - int16x8x4_t q4_out; - - INIT_VECTOR4(q4_out, - vaddq_s16(q_a0, q_a1), vaddq_s16(q_a3, q_a2), - vsubq_s16(q_a3, q_a2), vsubq_s16(q_a0, q_a1)); - return q4_out; -} - -static WEBP_INLINE int16x4x4_t DistoLoadW(const uint16_t* w) { - const uint16x8_t q_w07 = vld1q_u16(&w[0]); - const uint16x8_t q_w8f = vld1q_u16(&w[8]); - int16x4x4_t d4_w; - INIT_VECTOR4(d4_w, - vget_low_s16(vreinterpretq_s16_u16(q_w07)), - vget_high_s16(vreinterpretq_s16_u16(q_w07)), - vget_low_s16(vreinterpretq_s16_u16(q_w8f)), - vget_high_s16(vreinterpretq_s16_u16(q_w8f))); - return d4_w; -} - -static WEBP_INLINE int32x2_t DistoSum(const int16x8x4_t q4_in, - const int16x4x4_t d4_w) { - int32x2_t d_sum; - // sum += w[ 0] * abs(b0); - // sum += w[ 4] * abs(b1); - // sum += w[ 8] * abs(b2); - // sum += w[12] * abs(b3); - int32x4_t q_sum0 = vmull_s16(d4_w.val[0], vget_low_s16(q4_in.val[0])); - int32x4_t q_sum1 = vmull_s16(d4_w.val[1], vget_low_s16(q4_in.val[1])); - int32x4_t q_sum2 = vmull_s16(d4_w.val[2], vget_low_s16(q4_in.val[2])); - int32x4_t q_sum3 = vmull_s16(d4_w.val[3], vget_low_s16(q4_in.val[3])); - q_sum0 = vmlsl_s16(q_sum0, d4_w.val[0], vget_high_s16(q4_in.val[0])); - q_sum1 = vmlsl_s16(q_sum1, d4_w.val[1], vget_high_s16(q4_in.val[1])); - q_sum2 = vmlsl_s16(q_sum2, d4_w.val[2], vget_high_s16(q4_in.val[2])); - q_sum3 = vmlsl_s16(q_sum3, d4_w.val[3], vget_high_s16(q4_in.val[3])); - - q_sum0 = vaddq_s32(q_sum0, q_sum1); - q_sum2 = vaddq_s32(q_sum2, q_sum3); - q_sum2 = vaddq_s32(q_sum0, q_sum2); - d_sum = vpadd_s32(vget_low_s32(q_sum2), vget_high_s32(q_sum2)); - d_sum = vpadd_s32(d_sum, d_sum); - return d_sum; -} - -#define LOAD_LANE_32b(src, VALUE, LANE) \ - (VALUE) = vld1_lane_u32((const uint32_t*)(src), (VALUE), (LANE)) - -// Hadamard transform -// Returns the weighted sum of the absolute value of transformed coefficients. -// w[] contains a row-major 4 by 4 symmetric matrix. -static int Disto4x4(const uint8_t* const a, const uint8_t* const b, - const uint16_t* const w) { - uint32x2_t d_in_ab_0123 = vdup_n_u32(0); - uint32x2_t d_in_ab_4567 = vdup_n_u32(0); - uint32x2_t d_in_ab_89ab = vdup_n_u32(0); - uint32x2_t d_in_ab_cdef = vdup_n_u32(0); - uint8x8x4_t d4_in; - - // load data a, b - LOAD_LANE_32b(a + 0 * BPS, d_in_ab_0123, 0); - LOAD_LANE_32b(a + 1 * BPS, d_in_ab_4567, 0); - LOAD_LANE_32b(a + 2 * BPS, d_in_ab_89ab, 0); - LOAD_LANE_32b(a + 3 * BPS, d_in_ab_cdef, 0); - LOAD_LANE_32b(b + 0 * BPS, d_in_ab_0123, 1); - LOAD_LANE_32b(b + 1 * BPS, d_in_ab_4567, 1); - LOAD_LANE_32b(b + 2 * BPS, d_in_ab_89ab, 1); - LOAD_LANE_32b(b + 3 * BPS, d_in_ab_cdef, 1); - INIT_VECTOR4(d4_in, - vreinterpret_u8_u32(d_in_ab_0123), - vreinterpret_u8_u32(d_in_ab_4567), - vreinterpret_u8_u32(d_in_ab_89ab), - vreinterpret_u8_u32(d_in_ab_cdef)); - - { - // Vertical pass first to avoid a transpose (vertical and horizontal passes - // are commutative because w/kWeightY is symmetric) and subsequent - // transpose. - const int16x8x4_t q4_v = DistoVerticalPass(d4_in); - const int16x4x4_t d4_w = DistoLoadW(w); - // horizontal pass - const int16x8x4_t q4_t = DistoTranspose4x4S16(q4_v); - const int16x8x4_t q4_h = DistoHorizontalPass(q4_t); - int32x2_t d_sum = DistoSum(q4_h, d4_w); - - // abs(sum2 - sum1) >> 5 - d_sum = vabs_s32(d_sum); - d_sum = vshr_n_s32(d_sum, 5); - return vget_lane_s32(d_sum, 0); - } -} -#undef LOAD_LANE_32b - -static int Disto16x16(const uint8_t* const a, const uint8_t* const b, - const uint16_t* const w) { - int D = 0; - int x, y; - for (y = 0; y < 16 * BPS; y += 4 * BPS) { - for (x = 0; x < 16; x += 4) { - D += Disto4x4(a + x + y, b + x + y, w); - } - } - return D; -} - -//------------------------------------------------------------------------------ - -static void CollectHistogram(const uint8_t* ref, const uint8_t* pred, - int start_block, int end_block, - VP8Histogram* const histo) { - const uint16x8_t max_coeff_thresh = vdupq_n_u16(MAX_COEFF_THRESH); - int j; - int distribution[MAX_COEFF_THRESH + 1] = { 0 }; - for (j = start_block; j < end_block; ++j) { - int16_t out[16]; - FTransform(ref + VP8DspScan[j], pred + VP8DspScan[j], out); - { - int k; - const int16x8_t a0 = vld1q_s16(out + 0); - const int16x8_t b0 = vld1q_s16(out + 8); - const uint16x8_t a1 = vreinterpretq_u16_s16(vabsq_s16(a0)); - const uint16x8_t b1 = vreinterpretq_u16_s16(vabsq_s16(b0)); - const uint16x8_t a2 = vshrq_n_u16(a1, 3); - const uint16x8_t b2 = vshrq_n_u16(b1, 3); - const uint16x8_t a3 = vminq_u16(a2, max_coeff_thresh); - const uint16x8_t b3 = vminq_u16(b2, max_coeff_thresh); - vst1q_s16(out + 0, vreinterpretq_s16_u16(a3)); - vst1q_s16(out + 8, vreinterpretq_s16_u16(b3)); - // Convert coefficients to bin. - for (k = 0; k < 16; ++k) { - ++distribution[out[k]]; - } - } - } - VP8SetHistogramData(distribution, histo); -} - -//------------------------------------------------------------------------------ - -static WEBP_INLINE void AccumulateSSE16(const uint8_t* const a, - const uint8_t* const b, - uint32x4_t* const sum) { - const uint8x16_t a0 = vld1q_u8(a); - const uint8x16_t b0 = vld1q_u8(b); - const uint8x16_t abs_diff = vabdq_u8(a0, b0); - uint16x8_t prod = vmull_u8(vget_low_u8(abs_diff), vget_low_u8(abs_diff)); - prod = vmlal_u8(prod, vget_high_u8(abs_diff), vget_high_u8(abs_diff)); - *sum = vpadalq_u16(*sum, prod); // pair-wise add and accumulate -} - -// Horizontal sum of all four uint32_t values in 'sum'. -static int SumToInt(uint32x4_t sum) { - const uint64x2_t sum2 = vpaddlq_u32(sum); - const uint64_t sum3 = vgetq_lane_u64(sum2, 0) + vgetq_lane_u64(sum2, 1); - return (int)sum3; -} - -static int SSE16x16(const uint8_t* a, const uint8_t* b) { - uint32x4_t sum = vdupq_n_u32(0); - int y; - for (y = 0; y < 16; ++y) { - AccumulateSSE16(a + y * BPS, b + y * BPS, &sum); - } - return SumToInt(sum); -} - -static int SSE16x8(const uint8_t* a, const uint8_t* b) { - uint32x4_t sum = vdupq_n_u32(0); - int y; - for (y = 0; y < 8; ++y) { - AccumulateSSE16(a + y * BPS, b + y * BPS, &sum); - } - return SumToInt(sum); -} - -static int SSE8x8(const uint8_t* a, const uint8_t* b) { - uint32x4_t sum = vdupq_n_u32(0); - int y; - for (y = 0; y < 8; ++y) { - const uint8x8_t a0 = vld1_u8(a + y * BPS); - const uint8x8_t b0 = vld1_u8(b + y * BPS); - const uint8x8_t abs_diff = vabd_u8(a0, b0); - const uint16x8_t prod = vmull_u8(abs_diff, abs_diff); - sum = vpadalq_u16(sum, prod); - } - return SumToInt(sum); -} - -static int SSE4x4(const uint8_t* a, const uint8_t* b) { - const uint8x16_t a0 = Load4x4(a); - const uint8x16_t b0 = Load4x4(b); - const uint8x16_t abs_diff = vabdq_u8(a0, b0); - uint16x8_t prod = vmull_u8(vget_low_u8(abs_diff), vget_low_u8(abs_diff)); - prod = vmlal_u8(prod, vget_high_u8(abs_diff), vget_high_u8(abs_diff)); - return SumToInt(vpaddlq_u16(prod)); -} - -//------------------------------------------------------------------------------ - -// Compilation with gcc-4.6.x is problematic for now. -#if !defined(WORK_AROUND_GCC) - -static int16x8_t Quantize(int16_t* const in, - const VP8Matrix* const mtx, int offset) { - const uint16x8_t sharp = vld1q_u16(&mtx->sharpen_[offset]); - const uint16x8_t q = vld1q_u16(&mtx->q_[offset]); - const uint16x8_t iq = vld1q_u16(&mtx->iq_[offset]); - const uint32x4_t bias0 = vld1q_u32(&mtx->bias_[offset + 0]); - const uint32x4_t bias1 = vld1q_u32(&mtx->bias_[offset + 4]); - - const int16x8_t a = vld1q_s16(in + offset); // in - const uint16x8_t b = vreinterpretq_u16_s16(vabsq_s16(a)); // coeff = abs(in) - const int16x8_t sign = vshrq_n_s16(a, 15); // sign - const uint16x8_t c = vaddq_u16(b, sharp); // + sharpen - const uint32x4_t m0 = vmull_u16(vget_low_u16(c), vget_low_u16(iq)); - const uint32x4_t m1 = vmull_u16(vget_high_u16(c), vget_high_u16(iq)); - const uint32x4_t m2 = vhaddq_u32(m0, bias0); - const uint32x4_t m3 = vhaddq_u32(m1, bias1); // (coeff * iQ + bias) >> 1 - const uint16x8_t c0 = vcombine_u16(vshrn_n_u32(m2, 16), - vshrn_n_u32(m3, 16)); // QFIX=17 = 16+1 - const uint16x8_t c1 = vminq_u16(c0, vdupq_n_u16(MAX_LEVEL)); - const int16x8_t c2 = veorq_s16(vreinterpretq_s16_u16(c1), sign); - const int16x8_t c3 = vsubq_s16(c2, sign); // restore sign - const int16x8_t c4 = vmulq_s16(c3, vreinterpretq_s16_u16(q)); - vst1q_s16(in + offset, c4); - assert(QFIX == 17); // this function can't work as is if QFIX != 16+1 - return c3; -} - -static const uint8_t kShuffles[4][8] = { - { 0, 1, 2, 3, 8, 9, 16, 17 }, - { 10, 11, 4, 5, 6, 7, 12, 13 }, - { 18, 19, 24, 25, 26, 27, 20, 21 }, - { 14, 15, 22, 23, 28, 29, 30, 31 } -}; - -static int QuantizeBlock(int16_t in[16], int16_t out[16], - const VP8Matrix* const mtx) { - const int16x8_t out0 = Quantize(in, mtx, 0); - const int16x8_t out1 = Quantize(in, mtx, 8); - uint8x8x4_t shuffles; - // vtbl?_u8 are marked unavailable for iOS arm64 with Xcode < 6.3, use - // non-standard versions there. -#if defined(__APPLE__) && defined(__aarch64__) && \ - defined(__apple_build_version__) && (__apple_build_version__< 6020037) - uint8x16x2_t all_out; - INIT_VECTOR2(all_out, vreinterpretq_u8_s16(out0), vreinterpretq_u8_s16(out1)); - INIT_VECTOR4(shuffles, - vtbl2q_u8(all_out, vld1_u8(kShuffles[0])), - vtbl2q_u8(all_out, vld1_u8(kShuffles[1])), - vtbl2q_u8(all_out, vld1_u8(kShuffles[2])), - vtbl2q_u8(all_out, vld1_u8(kShuffles[3]))); -#else - uint8x8x4_t all_out; - INIT_VECTOR4(all_out, - vreinterpret_u8_s16(vget_low_s16(out0)), - vreinterpret_u8_s16(vget_high_s16(out0)), - vreinterpret_u8_s16(vget_low_s16(out1)), - vreinterpret_u8_s16(vget_high_s16(out1))); - INIT_VECTOR4(shuffles, - vtbl4_u8(all_out, vld1_u8(kShuffles[0])), - vtbl4_u8(all_out, vld1_u8(kShuffles[1])), - vtbl4_u8(all_out, vld1_u8(kShuffles[2])), - vtbl4_u8(all_out, vld1_u8(kShuffles[3]))); -#endif - // Zigzag reordering - vst1_u8((uint8_t*)(out + 0), shuffles.val[0]); - vst1_u8((uint8_t*)(out + 4), shuffles.val[1]); - vst1_u8((uint8_t*)(out + 8), shuffles.val[2]); - vst1_u8((uint8_t*)(out + 12), shuffles.val[3]); - // test zeros - if (*(uint64_t*)(out + 0) != 0) return 1; - if (*(uint64_t*)(out + 4) != 0) return 1; - if (*(uint64_t*)(out + 8) != 0) return 1; - if (*(uint64_t*)(out + 12) != 0) return 1; - return 0; -} - -static int Quantize2Blocks(int16_t in[32], int16_t out[32], - const VP8Matrix* const mtx) { - int nz; - nz = QuantizeBlock(in + 0 * 16, out + 0 * 16, mtx) << 0; - nz |= QuantizeBlock(in + 1 * 16, out + 1 * 16, mtx) << 1; - return nz; -} - -#endif // !WORK_AROUND_GCC - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8EncDspInitNEON(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitNEON(void) { - VP8ITransform = ITransform; - VP8FTransform = FTransform; - - VP8FTransformWHT = FTransformWHT; - - VP8TDisto4x4 = Disto4x4; - VP8TDisto16x16 = Disto16x16; - VP8CollectHistogram = CollectHistogram; - VP8SSE16x16 = SSE16x16; - VP8SSE16x8 = SSE16x8; - VP8SSE8x8 = SSE8x8; - VP8SSE4x4 = SSE4x4; -#if !defined(WORK_AROUND_GCC) - VP8EncQuantizeBlock = QuantizeBlock; - VP8EncQuantize2Blocks = Quantize2Blocks; -#endif -} - -#else // !WEBP_USE_NEON - -WEBP_DSP_INIT_STUB(VP8EncDspInitNEON) - -#endif // WEBP_USE_NEON diff --git a/drivers/webp/dsp/enc_sse2.c b/drivers/webp/dsp/enc_sse2.c deleted file mode 100644 index 4a2e3ce14f..0000000000 --- a/drivers/webp/dsp/enc_sse2.c +++ /dev/null @@ -1,1340 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// SSE2 version of speed-critical encoding functions. -// -// Author: Christian Duvivier (cduvivier@google.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_SSE2) -#include <stdlib.h> // for abs() -#include <emmintrin.h> - -#include "./common_sse2.h" -#include "../enc/cost.h" -#include "../enc/vp8enci.h" - -//------------------------------------------------------------------------------ -// Transforms (Paragraph 14.4) - -// Does one or two inverse transforms. -static void ITransform(const uint8_t* ref, const int16_t* in, uint8_t* dst, - int do_two) { - // This implementation makes use of 16-bit fixed point versions of two - // multiply constants: - // K1 = sqrt(2) * cos (pi/8) ~= 85627 / 2^16 - // K2 = sqrt(2) * sin (pi/8) ~= 35468 / 2^16 - // - // To be able to use signed 16-bit integers, we use the following trick to - // have constants within range: - // - Associated constants are obtained by subtracting the 16-bit fixed point - // version of one: - // k = K - (1 << 16) => K = k + (1 << 16) - // K1 = 85267 => k1 = 20091 - // K2 = 35468 => k2 = -30068 - // - The multiplication of a variable by a constant become the sum of the - // variable and the multiplication of that variable by the associated - // constant: - // (x * K) >> 16 = (x * (k + (1 << 16))) >> 16 = ((x * k ) >> 16) + x - const __m128i k1 = _mm_set1_epi16(20091); - const __m128i k2 = _mm_set1_epi16(-30068); - __m128i T0, T1, T2, T3; - - // Load and concatenate the transform coefficients (we'll do two inverse - // transforms in parallel). In the case of only one inverse transform, the - // second half of the vectors will just contain random value we'll never - // use nor store. - __m128i in0, in1, in2, in3; - { - in0 = _mm_loadl_epi64((const __m128i*)&in[0]); - in1 = _mm_loadl_epi64((const __m128i*)&in[4]); - in2 = _mm_loadl_epi64((const __m128i*)&in[8]); - in3 = _mm_loadl_epi64((const __m128i*)&in[12]); - // a00 a10 a20 a30 x x x x - // a01 a11 a21 a31 x x x x - // a02 a12 a22 a32 x x x x - // a03 a13 a23 a33 x x x x - if (do_two) { - const __m128i inB0 = _mm_loadl_epi64((const __m128i*)&in[16]); - const __m128i inB1 = _mm_loadl_epi64((const __m128i*)&in[20]); - const __m128i inB2 = _mm_loadl_epi64((const __m128i*)&in[24]); - const __m128i inB3 = _mm_loadl_epi64((const __m128i*)&in[28]); - in0 = _mm_unpacklo_epi64(in0, inB0); - in1 = _mm_unpacklo_epi64(in1, inB1); - in2 = _mm_unpacklo_epi64(in2, inB2); - in3 = _mm_unpacklo_epi64(in3, inB3); - // a00 a10 a20 a30 b00 b10 b20 b30 - // a01 a11 a21 a31 b01 b11 b21 b31 - // a02 a12 a22 a32 b02 b12 b22 b32 - // a03 a13 a23 a33 b03 b13 b23 b33 - } - } - - // Vertical pass and subsequent transpose. - { - // First pass, c and d calculations are longer because of the "trick" - // multiplications. - const __m128i a = _mm_add_epi16(in0, in2); - const __m128i b = _mm_sub_epi16(in0, in2); - // c = MUL(in1, K2) - MUL(in3, K1) = MUL(in1, k2) - MUL(in3, k1) + in1 - in3 - const __m128i c1 = _mm_mulhi_epi16(in1, k2); - const __m128i c2 = _mm_mulhi_epi16(in3, k1); - const __m128i c3 = _mm_sub_epi16(in1, in3); - const __m128i c4 = _mm_sub_epi16(c1, c2); - const __m128i c = _mm_add_epi16(c3, c4); - // d = MUL(in1, K1) + MUL(in3, K2) = MUL(in1, k1) + MUL(in3, k2) + in1 + in3 - const __m128i d1 = _mm_mulhi_epi16(in1, k1); - const __m128i d2 = _mm_mulhi_epi16(in3, k2); - const __m128i d3 = _mm_add_epi16(in1, in3); - const __m128i d4 = _mm_add_epi16(d1, d2); - const __m128i d = _mm_add_epi16(d3, d4); - - // Second pass. - const __m128i tmp0 = _mm_add_epi16(a, d); - const __m128i tmp1 = _mm_add_epi16(b, c); - const __m128i tmp2 = _mm_sub_epi16(b, c); - const __m128i tmp3 = _mm_sub_epi16(a, d); - - // Transpose the two 4x4. - VP8Transpose_2_4x4_16b(&tmp0, &tmp1, &tmp2, &tmp3, &T0, &T1, &T2, &T3); - } - - // Horizontal pass and subsequent transpose. - { - // First pass, c and d calculations are longer because of the "trick" - // multiplications. - const __m128i four = _mm_set1_epi16(4); - const __m128i dc = _mm_add_epi16(T0, four); - const __m128i a = _mm_add_epi16(dc, T2); - const __m128i b = _mm_sub_epi16(dc, T2); - // c = MUL(T1, K2) - MUL(T3, K1) = MUL(T1, k2) - MUL(T3, k1) + T1 - T3 - const __m128i c1 = _mm_mulhi_epi16(T1, k2); - const __m128i c2 = _mm_mulhi_epi16(T3, k1); - const __m128i c3 = _mm_sub_epi16(T1, T3); - const __m128i c4 = _mm_sub_epi16(c1, c2); - const __m128i c = _mm_add_epi16(c3, c4); - // d = MUL(T1, K1) + MUL(T3, K2) = MUL(T1, k1) + MUL(T3, k2) + T1 + T3 - const __m128i d1 = _mm_mulhi_epi16(T1, k1); - const __m128i d2 = _mm_mulhi_epi16(T3, k2); - const __m128i d3 = _mm_add_epi16(T1, T3); - const __m128i d4 = _mm_add_epi16(d1, d2); - const __m128i d = _mm_add_epi16(d3, d4); - - // Second pass. - const __m128i tmp0 = _mm_add_epi16(a, d); - const __m128i tmp1 = _mm_add_epi16(b, c); - const __m128i tmp2 = _mm_sub_epi16(b, c); - const __m128i tmp3 = _mm_sub_epi16(a, d); - const __m128i shifted0 = _mm_srai_epi16(tmp0, 3); - const __m128i shifted1 = _mm_srai_epi16(tmp1, 3); - const __m128i shifted2 = _mm_srai_epi16(tmp2, 3); - const __m128i shifted3 = _mm_srai_epi16(tmp3, 3); - - // Transpose the two 4x4. - VP8Transpose_2_4x4_16b(&shifted0, &shifted1, &shifted2, &shifted3, &T0, &T1, - &T2, &T3); - } - - // Add inverse transform to 'ref' and store. - { - const __m128i zero = _mm_setzero_si128(); - // Load the reference(s). - __m128i ref0, ref1, ref2, ref3; - if (do_two) { - // Load eight bytes/pixels per line. - ref0 = _mm_loadl_epi64((const __m128i*)&ref[0 * BPS]); - ref1 = _mm_loadl_epi64((const __m128i*)&ref[1 * BPS]); - ref2 = _mm_loadl_epi64((const __m128i*)&ref[2 * BPS]); - ref3 = _mm_loadl_epi64((const __m128i*)&ref[3 * BPS]); - } else { - // Load four bytes/pixels per line. - ref0 = _mm_cvtsi32_si128(WebPMemToUint32(&ref[0 * BPS])); - ref1 = _mm_cvtsi32_si128(WebPMemToUint32(&ref[1 * BPS])); - ref2 = _mm_cvtsi32_si128(WebPMemToUint32(&ref[2 * BPS])); - ref3 = _mm_cvtsi32_si128(WebPMemToUint32(&ref[3 * BPS])); - } - // Convert to 16b. - ref0 = _mm_unpacklo_epi8(ref0, zero); - ref1 = _mm_unpacklo_epi8(ref1, zero); - ref2 = _mm_unpacklo_epi8(ref2, zero); - ref3 = _mm_unpacklo_epi8(ref3, zero); - // Add the inverse transform(s). - ref0 = _mm_add_epi16(ref0, T0); - ref1 = _mm_add_epi16(ref1, T1); - ref2 = _mm_add_epi16(ref2, T2); - ref3 = _mm_add_epi16(ref3, T3); - // Unsigned saturate to 8b. - ref0 = _mm_packus_epi16(ref0, ref0); - ref1 = _mm_packus_epi16(ref1, ref1); - ref2 = _mm_packus_epi16(ref2, ref2); - ref3 = _mm_packus_epi16(ref3, ref3); - // Store the results. - if (do_two) { - // Store eight bytes/pixels per line. - _mm_storel_epi64((__m128i*)&dst[0 * BPS], ref0); - _mm_storel_epi64((__m128i*)&dst[1 * BPS], ref1); - _mm_storel_epi64((__m128i*)&dst[2 * BPS], ref2); - _mm_storel_epi64((__m128i*)&dst[3 * BPS], ref3); - } else { - // Store four bytes/pixels per line. - WebPUint32ToMem(&dst[0 * BPS], _mm_cvtsi128_si32(ref0)); - WebPUint32ToMem(&dst[1 * BPS], _mm_cvtsi128_si32(ref1)); - WebPUint32ToMem(&dst[2 * BPS], _mm_cvtsi128_si32(ref2)); - WebPUint32ToMem(&dst[3 * BPS], _mm_cvtsi128_si32(ref3)); - } - } -} - -static void FTransformPass1(const __m128i* const in01, - const __m128i* const in23, - __m128i* const out01, - __m128i* const out32) { - const __m128i k937 = _mm_set1_epi32(937); - const __m128i k1812 = _mm_set1_epi32(1812); - - const __m128i k88p = _mm_set_epi16(8, 8, 8, 8, 8, 8, 8, 8); - const __m128i k88m = _mm_set_epi16(-8, 8, -8, 8, -8, 8, -8, 8); - const __m128i k5352_2217p = _mm_set_epi16(2217, 5352, 2217, 5352, - 2217, 5352, 2217, 5352); - const __m128i k5352_2217m = _mm_set_epi16(-5352, 2217, -5352, 2217, - -5352, 2217, -5352, 2217); - - // *in01 = 00 01 10 11 02 03 12 13 - // *in23 = 20 21 30 31 22 23 32 33 - const __m128i shuf01_p = _mm_shufflehi_epi16(*in01, _MM_SHUFFLE(2, 3, 0, 1)); - const __m128i shuf23_p = _mm_shufflehi_epi16(*in23, _MM_SHUFFLE(2, 3, 0, 1)); - // 00 01 10 11 03 02 13 12 - // 20 21 30 31 23 22 33 32 - const __m128i s01 = _mm_unpacklo_epi64(shuf01_p, shuf23_p); - const __m128i s32 = _mm_unpackhi_epi64(shuf01_p, shuf23_p); - // 00 01 10 11 20 21 30 31 - // 03 02 13 12 23 22 33 32 - const __m128i a01 = _mm_add_epi16(s01, s32); - const __m128i a32 = _mm_sub_epi16(s01, s32); - // [d0 + d3 | d1 + d2 | ...] = [a0 a1 | a0' a1' | ... ] - // [d0 - d3 | d1 - d2 | ...] = [a3 a2 | a3' a2' | ... ] - - const __m128i tmp0 = _mm_madd_epi16(a01, k88p); // [ (a0 + a1) << 3, ... ] - const __m128i tmp2 = _mm_madd_epi16(a01, k88m); // [ (a0 - a1) << 3, ... ] - const __m128i tmp1_1 = _mm_madd_epi16(a32, k5352_2217p); - const __m128i tmp3_1 = _mm_madd_epi16(a32, k5352_2217m); - const __m128i tmp1_2 = _mm_add_epi32(tmp1_1, k1812); - const __m128i tmp3_2 = _mm_add_epi32(tmp3_1, k937); - const __m128i tmp1 = _mm_srai_epi32(tmp1_2, 9); - const __m128i tmp3 = _mm_srai_epi32(tmp3_2, 9); - const __m128i s03 = _mm_packs_epi32(tmp0, tmp2); - const __m128i s12 = _mm_packs_epi32(tmp1, tmp3); - const __m128i s_lo = _mm_unpacklo_epi16(s03, s12); // 0 1 0 1 0 1... - const __m128i s_hi = _mm_unpackhi_epi16(s03, s12); // 2 3 2 3 2 3 - const __m128i v23 = _mm_unpackhi_epi32(s_lo, s_hi); - *out01 = _mm_unpacklo_epi32(s_lo, s_hi); - *out32 = _mm_shuffle_epi32(v23, _MM_SHUFFLE(1, 0, 3, 2)); // 3 2 3 2 3 2.. -} - -static void FTransformPass2(const __m128i* const v01, const __m128i* const v32, - int16_t* out) { - const __m128i zero = _mm_setzero_si128(); - const __m128i seven = _mm_set1_epi16(7); - const __m128i k5352_2217 = _mm_set_epi16(5352, 2217, 5352, 2217, - 5352, 2217, 5352, 2217); - const __m128i k2217_5352 = _mm_set_epi16(2217, -5352, 2217, -5352, - 2217, -5352, 2217, -5352); - const __m128i k12000_plus_one = _mm_set1_epi32(12000 + (1 << 16)); - const __m128i k51000 = _mm_set1_epi32(51000); - - // Same operations are done on the (0,3) and (1,2) pairs. - // a0 = v0 + v3 - // a1 = v1 + v2 - // a3 = v0 - v3 - // a2 = v1 - v2 - const __m128i a01 = _mm_add_epi16(*v01, *v32); - const __m128i a32 = _mm_sub_epi16(*v01, *v32); - const __m128i a11 = _mm_unpackhi_epi64(a01, a01); - const __m128i a22 = _mm_unpackhi_epi64(a32, a32); - const __m128i a01_plus_7 = _mm_add_epi16(a01, seven); - - // d0 = (a0 + a1 + 7) >> 4; - // d2 = (a0 - a1 + 7) >> 4; - const __m128i c0 = _mm_add_epi16(a01_plus_7, a11); - const __m128i c2 = _mm_sub_epi16(a01_plus_7, a11); - const __m128i d0 = _mm_srai_epi16(c0, 4); - const __m128i d2 = _mm_srai_epi16(c2, 4); - - // f1 = ((b3 * 5352 + b2 * 2217 + 12000) >> 16) - // f3 = ((b3 * 2217 - b2 * 5352 + 51000) >> 16) - const __m128i b23 = _mm_unpacklo_epi16(a22, a32); - const __m128i c1 = _mm_madd_epi16(b23, k5352_2217); - const __m128i c3 = _mm_madd_epi16(b23, k2217_5352); - const __m128i d1 = _mm_add_epi32(c1, k12000_plus_one); - const __m128i d3 = _mm_add_epi32(c3, k51000); - const __m128i e1 = _mm_srai_epi32(d1, 16); - const __m128i e3 = _mm_srai_epi32(d3, 16); - const __m128i f1 = _mm_packs_epi32(e1, e1); - const __m128i f3 = _mm_packs_epi32(e3, e3); - // f1 = f1 + (a3 != 0); - // The compare will return (0xffff, 0) for (==0, !=0). To turn that into the - // desired (0, 1), we add one earlier through k12000_plus_one. - // -> f1 = f1 + 1 - (a3 == 0) - const __m128i g1 = _mm_add_epi16(f1, _mm_cmpeq_epi16(a32, zero)); - - const __m128i d0_g1 = _mm_unpacklo_epi64(d0, g1); - const __m128i d2_f3 = _mm_unpacklo_epi64(d2, f3); - _mm_storeu_si128((__m128i*)&out[0], d0_g1); - _mm_storeu_si128((__m128i*)&out[8], d2_f3); -} - -static void FTransform(const uint8_t* src, const uint8_t* ref, int16_t* out) { - const __m128i zero = _mm_setzero_si128(); - // Load src. - const __m128i src0 = _mm_loadl_epi64((const __m128i*)&src[0 * BPS]); - const __m128i src1 = _mm_loadl_epi64((const __m128i*)&src[1 * BPS]); - const __m128i src2 = _mm_loadl_epi64((const __m128i*)&src[2 * BPS]); - const __m128i src3 = _mm_loadl_epi64((const __m128i*)&src[3 * BPS]); - // 00 01 02 03 * - // 10 11 12 13 * - // 20 21 22 23 * - // 30 31 32 33 * - // Shuffle. - const __m128i src_0 = _mm_unpacklo_epi16(src0, src1); - const __m128i src_1 = _mm_unpacklo_epi16(src2, src3); - // 00 01 10 11 02 03 12 13 * * ... - // 20 21 30 31 22 22 32 33 * * ... - - // Load ref. - const __m128i ref0 = _mm_loadl_epi64((const __m128i*)&ref[0 * BPS]); - const __m128i ref1 = _mm_loadl_epi64((const __m128i*)&ref[1 * BPS]); - const __m128i ref2 = _mm_loadl_epi64((const __m128i*)&ref[2 * BPS]); - const __m128i ref3 = _mm_loadl_epi64((const __m128i*)&ref[3 * BPS]); - const __m128i ref_0 = _mm_unpacklo_epi16(ref0, ref1); - const __m128i ref_1 = _mm_unpacklo_epi16(ref2, ref3); - - // Convert both to 16 bit. - const __m128i src_0_16b = _mm_unpacklo_epi8(src_0, zero); - const __m128i src_1_16b = _mm_unpacklo_epi8(src_1, zero); - const __m128i ref_0_16b = _mm_unpacklo_epi8(ref_0, zero); - const __m128i ref_1_16b = _mm_unpacklo_epi8(ref_1, zero); - - // Compute the difference. - const __m128i row01 = _mm_sub_epi16(src_0_16b, ref_0_16b); - const __m128i row23 = _mm_sub_epi16(src_1_16b, ref_1_16b); - __m128i v01, v32; - - // First pass - FTransformPass1(&row01, &row23, &v01, &v32); - - // Second pass - FTransformPass2(&v01, &v32, out); -} - -static void FTransform2(const uint8_t* src, const uint8_t* ref, int16_t* out) { - const __m128i zero = _mm_setzero_si128(); - - // Load src and convert to 16b. - const __m128i src0 = _mm_loadl_epi64((const __m128i*)&src[0 * BPS]); - const __m128i src1 = _mm_loadl_epi64((const __m128i*)&src[1 * BPS]); - const __m128i src2 = _mm_loadl_epi64((const __m128i*)&src[2 * BPS]); - const __m128i src3 = _mm_loadl_epi64((const __m128i*)&src[3 * BPS]); - const __m128i src_0 = _mm_unpacklo_epi8(src0, zero); - const __m128i src_1 = _mm_unpacklo_epi8(src1, zero); - const __m128i src_2 = _mm_unpacklo_epi8(src2, zero); - const __m128i src_3 = _mm_unpacklo_epi8(src3, zero); - // Load ref and convert to 16b. - const __m128i ref0 = _mm_loadl_epi64((const __m128i*)&ref[0 * BPS]); - const __m128i ref1 = _mm_loadl_epi64((const __m128i*)&ref[1 * BPS]); - const __m128i ref2 = _mm_loadl_epi64((const __m128i*)&ref[2 * BPS]); - const __m128i ref3 = _mm_loadl_epi64((const __m128i*)&ref[3 * BPS]); - const __m128i ref_0 = _mm_unpacklo_epi8(ref0, zero); - const __m128i ref_1 = _mm_unpacklo_epi8(ref1, zero); - const __m128i ref_2 = _mm_unpacklo_epi8(ref2, zero); - const __m128i ref_3 = _mm_unpacklo_epi8(ref3, zero); - // Compute difference. -> 00 01 02 03 00' 01' 02' 03' - const __m128i diff0 = _mm_sub_epi16(src_0, ref_0); - const __m128i diff1 = _mm_sub_epi16(src_1, ref_1); - const __m128i diff2 = _mm_sub_epi16(src_2, ref_2); - const __m128i diff3 = _mm_sub_epi16(src_3, ref_3); - - // Unpack and shuffle - // 00 01 02 03 0 0 0 0 - // 10 11 12 13 0 0 0 0 - // 20 21 22 23 0 0 0 0 - // 30 31 32 33 0 0 0 0 - const __m128i shuf01l = _mm_unpacklo_epi32(diff0, diff1); - const __m128i shuf23l = _mm_unpacklo_epi32(diff2, diff3); - const __m128i shuf01h = _mm_unpackhi_epi32(diff0, diff1); - const __m128i shuf23h = _mm_unpackhi_epi32(diff2, diff3); - __m128i v01l, v32l; - __m128i v01h, v32h; - - // First pass - FTransformPass1(&shuf01l, &shuf23l, &v01l, &v32l); - FTransformPass1(&shuf01h, &shuf23h, &v01h, &v32h); - - // Second pass - FTransformPass2(&v01l, &v32l, out + 0); - FTransformPass2(&v01h, &v32h, out + 16); -} - -static void FTransformWHTRow(const int16_t* const in, __m128i* const out) { - const __m128i kMult = _mm_set_epi16(-1, 1, -1, 1, 1, 1, 1, 1); - const __m128i src0 = _mm_loadl_epi64((__m128i*)&in[0 * 16]); - const __m128i src1 = _mm_loadl_epi64((__m128i*)&in[1 * 16]); - const __m128i src2 = _mm_loadl_epi64((__m128i*)&in[2 * 16]); - const __m128i src3 = _mm_loadl_epi64((__m128i*)&in[3 * 16]); - const __m128i A01 = _mm_unpacklo_epi16(src0, src1); // A0 A1 | ... - const __m128i A23 = _mm_unpacklo_epi16(src2, src3); // A2 A3 | ... - const __m128i B0 = _mm_adds_epi16(A01, A23); // a0 | a1 | ... - const __m128i B1 = _mm_subs_epi16(A01, A23); // a3 | a2 | ... - const __m128i C0 = _mm_unpacklo_epi32(B0, B1); // a0 | a1 | a3 | a2 | ... - const __m128i C1 = _mm_unpacklo_epi32(B1, B0); // a3 | a2 | a0 | a1 | ... - const __m128i D = _mm_unpacklo_epi64(C0, C1); // a0 a1 a3 a2 a3 a2 a0 a1 - *out = _mm_madd_epi16(D, kMult); -} - -static void FTransformWHT(const int16_t* in, int16_t* out) { - // Input is 12b signed. - __m128i row0, row1, row2, row3; - // Rows are 14b signed. - FTransformWHTRow(in + 0 * 64, &row0); - FTransformWHTRow(in + 1 * 64, &row1); - FTransformWHTRow(in + 2 * 64, &row2); - FTransformWHTRow(in + 3 * 64, &row3); - - { - // The a* are 15b signed. - const __m128i a0 = _mm_add_epi32(row0, row2); - const __m128i a1 = _mm_add_epi32(row1, row3); - const __m128i a2 = _mm_sub_epi32(row1, row3); - const __m128i a3 = _mm_sub_epi32(row0, row2); - const __m128i a0a3 = _mm_packs_epi32(a0, a3); - const __m128i a1a2 = _mm_packs_epi32(a1, a2); - - // The b* are 16b signed. - const __m128i b0b1 = _mm_add_epi16(a0a3, a1a2); - const __m128i b3b2 = _mm_sub_epi16(a0a3, a1a2); - const __m128i tmp_b2b3 = _mm_unpackhi_epi64(b3b2, b3b2); - const __m128i b2b3 = _mm_unpacklo_epi64(tmp_b2b3, b3b2); - - _mm_storeu_si128((__m128i*)&out[0], _mm_srai_epi16(b0b1, 1)); - _mm_storeu_si128((__m128i*)&out[8], _mm_srai_epi16(b2b3, 1)); - } -} - -//------------------------------------------------------------------------------ -// Compute susceptibility based on DCT-coeff histograms: -// the higher, the "easier" the macroblock is to compress. - -static void CollectHistogram(const uint8_t* ref, const uint8_t* pred, - int start_block, int end_block, - VP8Histogram* const histo) { - const __m128i zero = _mm_setzero_si128(); - const __m128i max_coeff_thresh = _mm_set1_epi16(MAX_COEFF_THRESH); - int j; - int distribution[MAX_COEFF_THRESH + 1] = { 0 }; - for (j = start_block; j < end_block; ++j) { - int16_t out[16]; - int k; - - FTransform(ref + VP8DspScan[j], pred + VP8DspScan[j], out); - - // Convert coefficients to bin (within out[]). - { - // Load. - const __m128i out0 = _mm_loadu_si128((__m128i*)&out[0]); - const __m128i out1 = _mm_loadu_si128((__m128i*)&out[8]); - const __m128i d0 = _mm_sub_epi16(zero, out0); - const __m128i d1 = _mm_sub_epi16(zero, out1); - const __m128i abs0 = _mm_max_epi16(out0, d0); // abs(v), 16b - const __m128i abs1 = _mm_max_epi16(out1, d1); - // v = abs(out) >> 3 - const __m128i v0 = _mm_srai_epi16(abs0, 3); - const __m128i v1 = _mm_srai_epi16(abs1, 3); - // bin = min(v, MAX_COEFF_THRESH) - const __m128i bin0 = _mm_min_epi16(v0, max_coeff_thresh); - const __m128i bin1 = _mm_min_epi16(v1, max_coeff_thresh); - // Store. - _mm_storeu_si128((__m128i*)&out[0], bin0); - _mm_storeu_si128((__m128i*)&out[8], bin1); - } - - // Convert coefficients to bin. - for (k = 0; k < 16; ++k) { - ++distribution[out[k]]; - } - } - VP8SetHistogramData(distribution, histo); -} - -//------------------------------------------------------------------------------ -// Intra predictions - -// helper for chroma-DC predictions -static WEBP_INLINE void Put8x8uv(uint8_t v, uint8_t* dst) { - int j; - const __m128i values = _mm_set1_epi8(v); - for (j = 0; j < 8; ++j) { - _mm_storel_epi64((__m128i*)(dst + j * BPS), values); - } -} - -static WEBP_INLINE void Put16(uint8_t v, uint8_t* dst) { - int j; - const __m128i values = _mm_set1_epi8(v); - for (j = 0; j < 16; ++j) { - _mm_store_si128((__m128i*)(dst + j * BPS), values); - } -} - -static WEBP_INLINE void Fill(uint8_t* dst, int value, int size) { - if (size == 4) { - int j; - for (j = 0; j < 4; ++j) { - memset(dst + j * BPS, value, 4); - } - } else if (size == 8) { - Put8x8uv(value, dst); - } else { - Put16(value, dst); - } -} - -static WEBP_INLINE void VE8uv(uint8_t* dst, const uint8_t* top) { - int j; - const __m128i top_values = _mm_loadl_epi64((const __m128i*)top); - for (j = 0; j < 8; ++j) { - _mm_storel_epi64((__m128i*)(dst + j * BPS), top_values); - } -} - -static WEBP_INLINE void VE16(uint8_t* dst, const uint8_t* top) { - const __m128i top_values = _mm_load_si128((const __m128i*)top); - int j; - for (j = 0; j < 16; ++j) { - _mm_store_si128((__m128i*)(dst + j * BPS), top_values); - } -} - -static WEBP_INLINE void VerticalPred(uint8_t* dst, - const uint8_t* top, int size) { - if (top != NULL) { - if (size == 8) { - VE8uv(dst, top); - } else { - VE16(dst, top); - } - } else { - Fill(dst, 127, size); - } -} - -static WEBP_INLINE void HE8uv(uint8_t* dst, const uint8_t* left) { - int j; - for (j = 0; j < 8; ++j) { - const __m128i values = _mm_set1_epi8(left[j]); - _mm_storel_epi64((__m128i*)dst, values); - dst += BPS; - } -} - -static WEBP_INLINE void HE16(uint8_t* dst, const uint8_t* left) { - int j; - for (j = 0; j < 16; ++j) { - const __m128i values = _mm_set1_epi8(left[j]); - _mm_store_si128((__m128i*)dst, values); - dst += BPS; - } -} - -static WEBP_INLINE void HorizontalPred(uint8_t* dst, - const uint8_t* left, int size) { - if (left != NULL) { - if (size == 8) { - HE8uv(dst, left); - } else { - HE16(dst, left); - } - } else { - Fill(dst, 129, size); - } -} - -static WEBP_INLINE void TM(uint8_t* dst, const uint8_t* left, - const uint8_t* top, int size) { - const __m128i zero = _mm_setzero_si128(); - int y; - if (size == 8) { - const __m128i top_values = _mm_loadl_epi64((const __m128i*)top); - const __m128i top_base = _mm_unpacklo_epi8(top_values, zero); - for (y = 0; y < 8; ++y, dst += BPS) { - const int val = left[y] - left[-1]; - const __m128i base = _mm_set1_epi16(val); - const __m128i out = _mm_packus_epi16(_mm_add_epi16(base, top_base), zero); - _mm_storel_epi64((__m128i*)dst, out); - } - } else { - const __m128i top_values = _mm_load_si128((const __m128i*)top); - const __m128i top_base_0 = _mm_unpacklo_epi8(top_values, zero); - const __m128i top_base_1 = _mm_unpackhi_epi8(top_values, zero); - for (y = 0; y < 16; ++y, dst += BPS) { - const int val = left[y] - left[-1]; - const __m128i base = _mm_set1_epi16(val); - const __m128i out_0 = _mm_add_epi16(base, top_base_0); - const __m128i out_1 = _mm_add_epi16(base, top_base_1); - const __m128i out = _mm_packus_epi16(out_0, out_1); - _mm_store_si128((__m128i*)dst, out); - } - } -} - -static WEBP_INLINE void TrueMotion(uint8_t* dst, const uint8_t* left, - const uint8_t* top, int size) { - if (left != NULL) { - if (top != NULL) { - TM(dst, left, top, size); - } else { - HorizontalPred(dst, left, size); - } - } else { - // true motion without left samples (hence: with default 129 value) - // is equivalent to VE prediction where you just copy the top samples. - // Note that if top samples are not available, the default value is - // then 129, and not 127 as in the VerticalPred case. - if (top != NULL) { - VerticalPred(dst, top, size); - } else { - Fill(dst, 129, size); - } - } -} - -static WEBP_INLINE void DC8uv(uint8_t* dst, const uint8_t* left, - const uint8_t* top) { - const __m128i top_values = _mm_loadl_epi64((const __m128i*)top); - const __m128i left_values = _mm_loadl_epi64((const __m128i*)left); - const __m128i combined = _mm_unpacklo_epi64(top_values, left_values); - const int DC = VP8HorizontalAdd8b(&combined) + 8; - Put8x8uv(DC >> 4, dst); -} - -static WEBP_INLINE void DC8uvNoLeft(uint8_t* dst, const uint8_t* top) { - const __m128i zero = _mm_setzero_si128(); - const __m128i top_values = _mm_loadl_epi64((const __m128i*)top); - const __m128i sum = _mm_sad_epu8(top_values, zero); - const int DC = _mm_cvtsi128_si32(sum) + 4; - Put8x8uv(DC >> 3, dst); -} - -static WEBP_INLINE void DC8uvNoTop(uint8_t* dst, const uint8_t* left) { - // 'left' is contiguous so we can reuse the top summation. - DC8uvNoLeft(dst, left); -} - -static WEBP_INLINE void DC8uvNoTopLeft(uint8_t* dst) { - Put8x8uv(0x80, dst); -} - -static WEBP_INLINE void DC8uvMode(uint8_t* dst, const uint8_t* left, - const uint8_t* top) { - if (top != NULL) { - if (left != NULL) { // top and left present - DC8uv(dst, left, top); - } else { // top, but no left - DC8uvNoLeft(dst, top); - } - } else if (left != NULL) { // left but no top - DC8uvNoTop(dst, left); - } else { // no top, no left, nothing. - DC8uvNoTopLeft(dst); - } -} - -static WEBP_INLINE void DC16(uint8_t* dst, const uint8_t* left, - const uint8_t* top) { - const __m128i top_row = _mm_load_si128((const __m128i*)top); - const __m128i left_row = _mm_load_si128((const __m128i*)left); - const int DC = - VP8HorizontalAdd8b(&top_row) + VP8HorizontalAdd8b(&left_row) + 16; - Put16(DC >> 5, dst); -} - -static WEBP_INLINE void DC16NoLeft(uint8_t* dst, const uint8_t* top) { - const __m128i top_row = _mm_load_si128((const __m128i*)top); - const int DC = VP8HorizontalAdd8b(&top_row) + 8; - Put16(DC >> 4, dst); -} - -static WEBP_INLINE void DC16NoTop(uint8_t* dst, const uint8_t* left) { - // 'left' is contiguous so we can reuse the top summation. - DC16NoLeft(dst, left); -} - -static WEBP_INLINE void DC16NoTopLeft(uint8_t* dst) { - Put16(0x80, dst); -} - -static WEBP_INLINE void DC16Mode(uint8_t* dst, const uint8_t* left, - const uint8_t* top) { - if (top != NULL) { - if (left != NULL) { // top and left present - DC16(dst, left, top); - } else { // top, but no left - DC16NoLeft(dst, top); - } - } else if (left != NULL) { // left but no top - DC16NoTop(dst, left); - } else { // no top, no left, nothing. - DC16NoTopLeft(dst); - } -} - -//------------------------------------------------------------------------------ -// 4x4 predictions - -#define DST(x, y) dst[(x) + (y) * BPS] -#define AVG3(a, b, c) (((a) + 2 * (b) + (c) + 2) >> 2) -#define AVG2(a, b) (((a) + (b) + 1) >> 1) - -// We use the following 8b-arithmetic tricks: -// (a + 2 * b + c + 2) >> 2 = (AC + b + 1) >> 1 -// where: AC = (a + c) >> 1 = [(a + c + 1) >> 1] - [(a^c) & 1] -// and: -// (a + 2 * b + c + 2) >> 2 = (AB + BC + 1) >> 1 - (ab|bc)&lsb -// where: AC = (a + b + 1) >> 1, BC = (b + c + 1) >> 1 -// and ab = a ^ b, bc = b ^ c, lsb = (AC^BC)&1 - -static WEBP_INLINE void VE4(uint8_t* dst, const uint8_t* top) { // vertical - const __m128i one = _mm_set1_epi8(1); - const __m128i ABCDEFGH = _mm_loadl_epi64((__m128i*)(top - 1)); - const __m128i BCDEFGH0 = _mm_srli_si128(ABCDEFGH, 1); - const __m128i CDEFGH00 = _mm_srli_si128(ABCDEFGH, 2); - const __m128i a = _mm_avg_epu8(ABCDEFGH, CDEFGH00); - const __m128i lsb = _mm_and_si128(_mm_xor_si128(ABCDEFGH, CDEFGH00), one); - const __m128i b = _mm_subs_epu8(a, lsb); - const __m128i avg = _mm_avg_epu8(b, BCDEFGH0); - const uint32_t vals = _mm_cvtsi128_si32(avg); - int i; - for (i = 0; i < 4; ++i) { - WebPUint32ToMem(dst + i * BPS, vals); - } -} - -static WEBP_INLINE void HE4(uint8_t* dst, const uint8_t* top) { // horizontal - const int X = top[-1]; - const int I = top[-2]; - const int J = top[-3]; - const int K = top[-4]; - const int L = top[-5]; - WebPUint32ToMem(dst + 0 * BPS, 0x01010101U * AVG3(X, I, J)); - WebPUint32ToMem(dst + 1 * BPS, 0x01010101U * AVG3(I, J, K)); - WebPUint32ToMem(dst + 2 * BPS, 0x01010101U * AVG3(J, K, L)); - WebPUint32ToMem(dst + 3 * BPS, 0x01010101U * AVG3(K, L, L)); -} - -static WEBP_INLINE void DC4(uint8_t* dst, const uint8_t* top) { - uint32_t dc = 4; - int i; - for (i = 0; i < 4; ++i) dc += top[i] + top[-5 + i]; - Fill(dst, dc >> 3, 4); -} - -static WEBP_INLINE void LD4(uint8_t* dst, const uint8_t* top) { // Down-Left - const __m128i one = _mm_set1_epi8(1); - const __m128i ABCDEFGH = _mm_loadl_epi64((const __m128i*)top); - const __m128i BCDEFGH0 = _mm_srli_si128(ABCDEFGH, 1); - const __m128i CDEFGH00 = _mm_srli_si128(ABCDEFGH, 2); - const __m128i CDEFGHH0 = _mm_insert_epi16(CDEFGH00, top[7], 3); - const __m128i avg1 = _mm_avg_epu8(ABCDEFGH, CDEFGHH0); - const __m128i lsb = _mm_and_si128(_mm_xor_si128(ABCDEFGH, CDEFGHH0), one); - const __m128i avg2 = _mm_subs_epu8(avg1, lsb); - const __m128i abcdefg = _mm_avg_epu8(avg2, BCDEFGH0); - WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32( abcdefg )); - WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 1))); - WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 2))); - WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 3))); -} - -static WEBP_INLINE void VR4(uint8_t* dst, - const uint8_t* top) { // Vertical-Right - const __m128i one = _mm_set1_epi8(1); - const int I = top[-2]; - const int J = top[-3]; - const int K = top[-4]; - const int X = top[-1]; - const __m128i XABCD = _mm_loadl_epi64((const __m128i*)(top - 1)); - const __m128i ABCD0 = _mm_srli_si128(XABCD, 1); - const __m128i abcd = _mm_avg_epu8(XABCD, ABCD0); - const __m128i _XABCD = _mm_slli_si128(XABCD, 1); - const __m128i IXABCD = _mm_insert_epi16(_XABCD, I | (X << 8), 0); - const __m128i avg1 = _mm_avg_epu8(IXABCD, ABCD0); - const __m128i lsb = _mm_and_si128(_mm_xor_si128(IXABCD, ABCD0), one); - const __m128i avg2 = _mm_subs_epu8(avg1, lsb); - const __m128i efgh = _mm_avg_epu8(avg2, XABCD); - WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32( abcd )); - WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32( efgh )); - WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_slli_si128(abcd, 1))); - WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_slli_si128(efgh, 1))); - - // these two are hard to implement in SSE2, so we keep the C-version: - DST(0, 2) = AVG3(J, I, X); - DST(0, 3) = AVG3(K, J, I); -} - -static WEBP_INLINE void VL4(uint8_t* dst, - const uint8_t* top) { // Vertical-Left - const __m128i one = _mm_set1_epi8(1); - const __m128i ABCDEFGH = _mm_loadl_epi64((const __m128i*)top); - const __m128i BCDEFGH_ = _mm_srli_si128(ABCDEFGH, 1); - const __m128i CDEFGH__ = _mm_srli_si128(ABCDEFGH, 2); - const __m128i avg1 = _mm_avg_epu8(ABCDEFGH, BCDEFGH_); - const __m128i avg2 = _mm_avg_epu8(CDEFGH__, BCDEFGH_); - const __m128i avg3 = _mm_avg_epu8(avg1, avg2); - const __m128i lsb1 = _mm_and_si128(_mm_xor_si128(avg1, avg2), one); - const __m128i ab = _mm_xor_si128(ABCDEFGH, BCDEFGH_); - const __m128i bc = _mm_xor_si128(CDEFGH__, BCDEFGH_); - const __m128i abbc = _mm_or_si128(ab, bc); - const __m128i lsb2 = _mm_and_si128(abbc, lsb1); - const __m128i avg4 = _mm_subs_epu8(avg3, lsb2); - const uint32_t extra_out = _mm_cvtsi128_si32(_mm_srli_si128(avg4, 4)); - WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32( avg1 )); - WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32( avg4 )); - WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(avg1, 1))); - WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(avg4, 1))); - - // these two are hard to get and irregular - DST(3, 2) = (extra_out >> 0) & 0xff; - DST(3, 3) = (extra_out >> 8) & 0xff; -} - -static WEBP_INLINE void RD4(uint8_t* dst, const uint8_t* top) { // Down-right - const __m128i one = _mm_set1_epi8(1); - const __m128i LKJIXABC = _mm_loadl_epi64((const __m128i*)(top - 5)); - const __m128i LKJIXABCD = _mm_insert_epi16(LKJIXABC, top[3], 4); - const __m128i KJIXABCD_ = _mm_srli_si128(LKJIXABCD, 1); - const __m128i JIXABCD__ = _mm_srli_si128(LKJIXABCD, 2); - const __m128i avg1 = _mm_avg_epu8(JIXABCD__, LKJIXABCD); - const __m128i lsb = _mm_and_si128(_mm_xor_si128(JIXABCD__, LKJIXABCD), one); - const __m128i avg2 = _mm_subs_epu8(avg1, lsb); - const __m128i abcdefg = _mm_avg_epu8(avg2, KJIXABCD_); - WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32( abcdefg )); - WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 1))); - WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 2))); - WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 3))); -} - -static WEBP_INLINE void HU4(uint8_t* dst, const uint8_t* top) { - const int I = top[-2]; - const int J = top[-3]; - const int K = top[-4]; - const int L = top[-5]; - DST(0, 0) = AVG2(I, J); - DST(2, 0) = DST(0, 1) = AVG2(J, K); - DST(2, 1) = DST(0, 2) = AVG2(K, L); - DST(1, 0) = AVG3(I, J, K); - DST(3, 0) = DST(1, 1) = AVG3(J, K, L); - DST(3, 1) = DST(1, 2) = AVG3(K, L, L); - DST(3, 2) = DST(2, 2) = - DST(0, 3) = DST(1, 3) = DST(2, 3) = DST(3, 3) = L; -} - -static WEBP_INLINE void HD4(uint8_t* dst, const uint8_t* top) { - const int X = top[-1]; - const int I = top[-2]; - const int J = top[-3]; - const int K = top[-4]; - const int L = top[-5]; - const int A = top[0]; - const int B = top[1]; - const int C = top[2]; - - DST(0, 0) = DST(2, 1) = AVG2(I, X); - DST(0, 1) = DST(2, 2) = AVG2(J, I); - DST(0, 2) = DST(2, 3) = AVG2(K, J); - DST(0, 3) = AVG2(L, K); - - DST(3, 0) = AVG3(A, B, C); - DST(2, 0) = AVG3(X, A, B); - DST(1, 0) = DST(3, 1) = AVG3(I, X, A); - DST(1, 1) = DST(3, 2) = AVG3(J, I, X); - DST(1, 2) = DST(3, 3) = AVG3(K, J, I); - DST(1, 3) = AVG3(L, K, J); -} - -static WEBP_INLINE void TM4(uint8_t* dst, const uint8_t* top) { - const __m128i zero = _mm_setzero_si128(); - const __m128i top_values = _mm_cvtsi32_si128(WebPMemToUint32(top)); - const __m128i top_base = _mm_unpacklo_epi8(top_values, zero); - int y; - for (y = 0; y < 4; ++y, dst += BPS) { - const int val = top[-2 - y] - top[-1]; - const __m128i base = _mm_set1_epi16(val); - const __m128i out = _mm_packus_epi16(_mm_add_epi16(base, top_base), zero); - WebPUint32ToMem(dst, _mm_cvtsi128_si32(out)); - } -} - -#undef DST -#undef AVG3 -#undef AVG2 - -//------------------------------------------------------------------------------ -// luma 4x4 prediction - -// Left samples are top[-5 .. -2], top_left is top[-1], top are -// located at top[0..3], and top right is top[4..7] -static void Intra4Preds(uint8_t* dst, const uint8_t* top) { - DC4(I4DC4 + dst, top); - TM4(I4TM4 + dst, top); - VE4(I4VE4 + dst, top); - HE4(I4HE4 + dst, top); - RD4(I4RD4 + dst, top); - VR4(I4VR4 + dst, top); - LD4(I4LD4 + dst, top); - VL4(I4VL4 + dst, top); - HD4(I4HD4 + dst, top); - HU4(I4HU4 + dst, top); -} - -//------------------------------------------------------------------------------ -// Chroma 8x8 prediction (paragraph 12.2) - -static void IntraChromaPreds(uint8_t* dst, const uint8_t* left, - const uint8_t* top) { - // U block - DC8uvMode(C8DC8 + dst, left, top); - VerticalPred(C8VE8 + dst, top, 8); - HorizontalPred(C8HE8 + dst, left, 8); - TrueMotion(C8TM8 + dst, left, top, 8); - // V block - dst += 8; - if (top != NULL) top += 8; - if (left != NULL) left += 16; - DC8uvMode(C8DC8 + dst, left, top); - VerticalPred(C8VE8 + dst, top, 8); - HorizontalPred(C8HE8 + dst, left, 8); - TrueMotion(C8TM8 + dst, left, top, 8); -} - -//------------------------------------------------------------------------------ -// luma 16x16 prediction (paragraph 12.3) - -static void Intra16Preds(uint8_t* dst, - const uint8_t* left, const uint8_t* top) { - DC16Mode(I16DC16 + dst, left, top); - VerticalPred(I16VE16 + dst, top, 16); - HorizontalPred(I16HE16 + dst, left, 16); - TrueMotion(I16TM16 + dst, left, top, 16); -} - -//------------------------------------------------------------------------------ -// Metric - -static WEBP_INLINE void SubtractAndAccumulate(const __m128i a, const __m128i b, - __m128i* const sum) { - // take abs(a-b) in 8b - const __m128i a_b = _mm_subs_epu8(a, b); - const __m128i b_a = _mm_subs_epu8(b, a); - const __m128i abs_a_b = _mm_or_si128(a_b, b_a); - // zero-extend to 16b - const __m128i zero = _mm_setzero_si128(); - const __m128i C0 = _mm_unpacklo_epi8(abs_a_b, zero); - const __m128i C1 = _mm_unpackhi_epi8(abs_a_b, zero); - // multiply with self - const __m128i sum1 = _mm_madd_epi16(C0, C0); - const __m128i sum2 = _mm_madd_epi16(C1, C1); - *sum = _mm_add_epi32(sum1, sum2); -} - -static WEBP_INLINE int SSE_16xN(const uint8_t* a, const uint8_t* b, - int num_pairs) { - __m128i sum = _mm_setzero_si128(); - int32_t tmp[4]; - int i; - - for (i = 0; i < num_pairs; ++i) { - const __m128i a0 = _mm_loadu_si128((const __m128i*)&a[BPS * 0]); - const __m128i b0 = _mm_loadu_si128((const __m128i*)&b[BPS * 0]); - const __m128i a1 = _mm_loadu_si128((const __m128i*)&a[BPS * 1]); - const __m128i b1 = _mm_loadu_si128((const __m128i*)&b[BPS * 1]); - __m128i sum1, sum2; - SubtractAndAccumulate(a0, b0, &sum1); - SubtractAndAccumulate(a1, b1, &sum2); - sum = _mm_add_epi32(sum, _mm_add_epi32(sum1, sum2)); - a += 2 * BPS; - b += 2 * BPS; - } - _mm_storeu_si128((__m128i*)tmp, sum); - return (tmp[3] + tmp[2] + tmp[1] + tmp[0]); -} - -static int SSE16x16(const uint8_t* a, const uint8_t* b) { - return SSE_16xN(a, b, 8); -} - -static int SSE16x8(const uint8_t* a, const uint8_t* b) { - return SSE_16xN(a, b, 4); -} - -#define LOAD_8x16b(ptr) \ - _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i*)(ptr)), zero) - -static int SSE8x8(const uint8_t* a, const uint8_t* b) { - const __m128i zero = _mm_setzero_si128(); - int num_pairs = 4; - __m128i sum = zero; - int32_t tmp[4]; - while (num_pairs-- > 0) { - const __m128i a0 = LOAD_8x16b(&a[BPS * 0]); - const __m128i a1 = LOAD_8x16b(&a[BPS * 1]); - const __m128i b0 = LOAD_8x16b(&b[BPS * 0]); - const __m128i b1 = LOAD_8x16b(&b[BPS * 1]); - // subtract - const __m128i c0 = _mm_subs_epi16(a0, b0); - const __m128i c1 = _mm_subs_epi16(a1, b1); - // multiply/accumulate with self - const __m128i d0 = _mm_madd_epi16(c0, c0); - const __m128i d1 = _mm_madd_epi16(c1, c1); - // collect - const __m128i sum01 = _mm_add_epi32(d0, d1); - sum = _mm_add_epi32(sum, sum01); - a += 2 * BPS; - b += 2 * BPS; - } - _mm_storeu_si128((__m128i*)tmp, sum); - return (tmp[3] + tmp[2] + tmp[1] + tmp[0]); -} -#undef LOAD_8x16b - -static int SSE4x4(const uint8_t* a, const uint8_t* b) { - const __m128i zero = _mm_setzero_si128(); - - // Load values. Note that we read 8 pixels instead of 4, - // but the a/b buffers are over-allocated to that effect. - const __m128i a0 = _mm_loadl_epi64((const __m128i*)&a[BPS * 0]); - const __m128i a1 = _mm_loadl_epi64((const __m128i*)&a[BPS * 1]); - const __m128i a2 = _mm_loadl_epi64((const __m128i*)&a[BPS * 2]); - const __m128i a3 = _mm_loadl_epi64((const __m128i*)&a[BPS * 3]); - const __m128i b0 = _mm_loadl_epi64((const __m128i*)&b[BPS * 0]); - const __m128i b1 = _mm_loadl_epi64((const __m128i*)&b[BPS * 1]); - const __m128i b2 = _mm_loadl_epi64((const __m128i*)&b[BPS * 2]); - const __m128i b3 = _mm_loadl_epi64((const __m128i*)&b[BPS * 3]); - // Combine pair of lines. - const __m128i a01 = _mm_unpacklo_epi32(a0, a1); - const __m128i a23 = _mm_unpacklo_epi32(a2, a3); - const __m128i b01 = _mm_unpacklo_epi32(b0, b1); - const __m128i b23 = _mm_unpacklo_epi32(b2, b3); - // Convert to 16b. - const __m128i a01s = _mm_unpacklo_epi8(a01, zero); - const __m128i a23s = _mm_unpacklo_epi8(a23, zero); - const __m128i b01s = _mm_unpacklo_epi8(b01, zero); - const __m128i b23s = _mm_unpacklo_epi8(b23, zero); - // subtract, square and accumulate - const __m128i d0 = _mm_subs_epi16(a01s, b01s); - const __m128i d1 = _mm_subs_epi16(a23s, b23s); - const __m128i e0 = _mm_madd_epi16(d0, d0); - const __m128i e1 = _mm_madd_epi16(d1, d1); - const __m128i sum = _mm_add_epi32(e0, e1); - - int32_t tmp[4]; - _mm_storeu_si128((__m128i*)tmp, sum); - return (tmp[3] + tmp[2] + tmp[1] + tmp[0]); -} - -//------------------------------------------------------------------------------ -// Texture distortion -// -// We try to match the spectral content (weighted) between source and -// reconstructed samples. - -// Hadamard transform -// Returns the weighted sum of the absolute value of transformed coefficients. -// w[] contains a row-major 4 by 4 symmetric matrix. -static int TTransform(const uint8_t* inA, const uint8_t* inB, - const uint16_t* const w) { - int32_t sum[4]; - __m128i tmp_0, tmp_1, tmp_2, tmp_3; - const __m128i zero = _mm_setzero_si128(); - - // Load and combine inputs. - { - const __m128i inA_0 = _mm_loadl_epi64((const __m128i*)&inA[BPS * 0]); - const __m128i inA_1 = _mm_loadl_epi64((const __m128i*)&inA[BPS * 1]); - const __m128i inA_2 = _mm_loadl_epi64((const __m128i*)&inA[BPS * 2]); - const __m128i inA_3 = _mm_loadl_epi64((const __m128i*)&inA[BPS * 3]); - const __m128i inB_0 = _mm_loadl_epi64((const __m128i*)&inB[BPS * 0]); - const __m128i inB_1 = _mm_loadl_epi64((const __m128i*)&inB[BPS * 1]); - const __m128i inB_2 = _mm_loadl_epi64((const __m128i*)&inB[BPS * 2]); - const __m128i inB_3 = _mm_loadl_epi64((const __m128i*)&inB[BPS * 3]); - - // Combine inA and inB (we'll do two transforms in parallel). - const __m128i inAB_0 = _mm_unpacklo_epi32(inA_0, inB_0); - const __m128i inAB_1 = _mm_unpacklo_epi32(inA_1, inB_1); - const __m128i inAB_2 = _mm_unpacklo_epi32(inA_2, inB_2); - const __m128i inAB_3 = _mm_unpacklo_epi32(inA_3, inB_3); - tmp_0 = _mm_unpacklo_epi8(inAB_0, zero); - tmp_1 = _mm_unpacklo_epi8(inAB_1, zero); - tmp_2 = _mm_unpacklo_epi8(inAB_2, zero); - tmp_3 = _mm_unpacklo_epi8(inAB_3, zero); - // a00 a01 a02 a03 b00 b01 b02 b03 - // a10 a11 a12 a13 b10 b11 b12 b13 - // a20 a21 a22 a23 b20 b21 b22 b23 - // a30 a31 a32 a33 b30 b31 b32 b33 - } - - // Vertical pass first to avoid a transpose (vertical and horizontal passes - // are commutative because w/kWeightY is symmetric) and subsequent transpose. - { - // Calculate a and b (two 4x4 at once). - const __m128i a0 = _mm_add_epi16(tmp_0, tmp_2); - const __m128i a1 = _mm_add_epi16(tmp_1, tmp_3); - const __m128i a2 = _mm_sub_epi16(tmp_1, tmp_3); - const __m128i a3 = _mm_sub_epi16(tmp_0, tmp_2); - const __m128i b0 = _mm_add_epi16(a0, a1); - const __m128i b1 = _mm_add_epi16(a3, a2); - const __m128i b2 = _mm_sub_epi16(a3, a2); - const __m128i b3 = _mm_sub_epi16(a0, a1); - // a00 a01 a02 a03 b00 b01 b02 b03 - // a10 a11 a12 a13 b10 b11 b12 b13 - // a20 a21 a22 a23 b20 b21 b22 b23 - // a30 a31 a32 a33 b30 b31 b32 b33 - - // Transpose the two 4x4. - VP8Transpose_2_4x4_16b(&b0, &b1, &b2, &b3, &tmp_0, &tmp_1, &tmp_2, &tmp_3); - } - - // Horizontal pass and difference of weighted sums. - { - // Load all inputs. - const __m128i w_0 = _mm_loadu_si128((const __m128i*)&w[0]); - const __m128i w_8 = _mm_loadu_si128((const __m128i*)&w[8]); - - // Calculate a and b (two 4x4 at once). - const __m128i a0 = _mm_add_epi16(tmp_0, tmp_2); - const __m128i a1 = _mm_add_epi16(tmp_1, tmp_3); - const __m128i a2 = _mm_sub_epi16(tmp_1, tmp_3); - const __m128i a3 = _mm_sub_epi16(tmp_0, tmp_2); - const __m128i b0 = _mm_add_epi16(a0, a1); - const __m128i b1 = _mm_add_epi16(a3, a2); - const __m128i b2 = _mm_sub_epi16(a3, a2); - const __m128i b3 = _mm_sub_epi16(a0, a1); - - // Separate the transforms of inA and inB. - __m128i A_b0 = _mm_unpacklo_epi64(b0, b1); - __m128i A_b2 = _mm_unpacklo_epi64(b2, b3); - __m128i B_b0 = _mm_unpackhi_epi64(b0, b1); - __m128i B_b2 = _mm_unpackhi_epi64(b2, b3); - - { - const __m128i d0 = _mm_sub_epi16(zero, A_b0); - const __m128i d1 = _mm_sub_epi16(zero, A_b2); - const __m128i d2 = _mm_sub_epi16(zero, B_b0); - const __m128i d3 = _mm_sub_epi16(zero, B_b2); - A_b0 = _mm_max_epi16(A_b0, d0); // abs(v), 16b - A_b2 = _mm_max_epi16(A_b2, d1); - B_b0 = _mm_max_epi16(B_b0, d2); - B_b2 = _mm_max_epi16(B_b2, d3); - } - - // weighted sums - A_b0 = _mm_madd_epi16(A_b0, w_0); - A_b2 = _mm_madd_epi16(A_b2, w_8); - B_b0 = _mm_madd_epi16(B_b0, w_0); - B_b2 = _mm_madd_epi16(B_b2, w_8); - A_b0 = _mm_add_epi32(A_b0, A_b2); - B_b0 = _mm_add_epi32(B_b0, B_b2); - - // difference of weighted sums - A_b0 = _mm_sub_epi32(A_b0, B_b0); - _mm_storeu_si128((__m128i*)&sum[0], A_b0); - } - return sum[0] + sum[1] + sum[2] + sum[3]; -} - -static int Disto4x4(const uint8_t* const a, const uint8_t* const b, - const uint16_t* const w) { - const int diff_sum = TTransform(a, b, w); - return abs(diff_sum) >> 5; -} - -static int Disto16x16(const uint8_t* const a, const uint8_t* const b, - const uint16_t* const w) { - int D = 0; - int x, y; - for (y = 0; y < 16 * BPS; y += 4 * BPS) { - for (x = 0; x < 16; x += 4) { - D += Disto4x4(a + x + y, b + x + y, w); - } - } - return D; -} - -//------------------------------------------------------------------------------ -// Quantization -// - -static WEBP_INLINE int DoQuantizeBlock(int16_t in[16], int16_t out[16], - const uint16_t* const sharpen, - const VP8Matrix* const mtx) { - const __m128i max_coeff_2047 = _mm_set1_epi16(MAX_LEVEL); - const __m128i zero = _mm_setzero_si128(); - __m128i coeff0, coeff8; - __m128i out0, out8; - __m128i packed_out; - - // Load all inputs. - __m128i in0 = _mm_loadu_si128((__m128i*)&in[0]); - __m128i in8 = _mm_loadu_si128((__m128i*)&in[8]); - const __m128i iq0 = _mm_loadu_si128((const __m128i*)&mtx->iq_[0]); - const __m128i iq8 = _mm_loadu_si128((const __m128i*)&mtx->iq_[8]); - const __m128i q0 = _mm_loadu_si128((const __m128i*)&mtx->q_[0]); - const __m128i q8 = _mm_loadu_si128((const __m128i*)&mtx->q_[8]); - - // extract sign(in) (0x0000 if positive, 0xffff if negative) - const __m128i sign0 = _mm_cmpgt_epi16(zero, in0); - const __m128i sign8 = _mm_cmpgt_epi16(zero, in8); - - // coeff = abs(in) = (in ^ sign) - sign - coeff0 = _mm_xor_si128(in0, sign0); - coeff8 = _mm_xor_si128(in8, sign8); - coeff0 = _mm_sub_epi16(coeff0, sign0); - coeff8 = _mm_sub_epi16(coeff8, sign8); - - // coeff = abs(in) + sharpen - if (sharpen != NULL) { - const __m128i sharpen0 = _mm_loadu_si128((const __m128i*)&sharpen[0]); - const __m128i sharpen8 = _mm_loadu_si128((const __m128i*)&sharpen[8]); - coeff0 = _mm_add_epi16(coeff0, sharpen0); - coeff8 = _mm_add_epi16(coeff8, sharpen8); - } - - // out = (coeff * iQ + B) >> QFIX - { - // doing calculations with 32b precision (QFIX=17) - // out = (coeff * iQ) - const __m128i coeff_iQ0H = _mm_mulhi_epu16(coeff0, iq0); - const __m128i coeff_iQ0L = _mm_mullo_epi16(coeff0, iq0); - const __m128i coeff_iQ8H = _mm_mulhi_epu16(coeff8, iq8); - const __m128i coeff_iQ8L = _mm_mullo_epi16(coeff8, iq8); - __m128i out_00 = _mm_unpacklo_epi16(coeff_iQ0L, coeff_iQ0H); - __m128i out_04 = _mm_unpackhi_epi16(coeff_iQ0L, coeff_iQ0H); - __m128i out_08 = _mm_unpacklo_epi16(coeff_iQ8L, coeff_iQ8H); - __m128i out_12 = _mm_unpackhi_epi16(coeff_iQ8L, coeff_iQ8H); - // out = (coeff * iQ + B) - const __m128i bias_00 = _mm_loadu_si128((const __m128i*)&mtx->bias_[0]); - const __m128i bias_04 = _mm_loadu_si128((const __m128i*)&mtx->bias_[4]); - const __m128i bias_08 = _mm_loadu_si128((const __m128i*)&mtx->bias_[8]); - const __m128i bias_12 = _mm_loadu_si128((const __m128i*)&mtx->bias_[12]); - out_00 = _mm_add_epi32(out_00, bias_00); - out_04 = _mm_add_epi32(out_04, bias_04); - out_08 = _mm_add_epi32(out_08, bias_08); - out_12 = _mm_add_epi32(out_12, bias_12); - // out = QUANTDIV(coeff, iQ, B, QFIX) - out_00 = _mm_srai_epi32(out_00, QFIX); - out_04 = _mm_srai_epi32(out_04, QFIX); - out_08 = _mm_srai_epi32(out_08, QFIX); - out_12 = _mm_srai_epi32(out_12, QFIX); - - // pack result as 16b - out0 = _mm_packs_epi32(out_00, out_04); - out8 = _mm_packs_epi32(out_08, out_12); - - // if (coeff > 2047) coeff = 2047 - out0 = _mm_min_epi16(out0, max_coeff_2047); - out8 = _mm_min_epi16(out8, max_coeff_2047); - } - - // get sign back (if (sign[j]) out_n = -out_n) - out0 = _mm_xor_si128(out0, sign0); - out8 = _mm_xor_si128(out8, sign8); - out0 = _mm_sub_epi16(out0, sign0); - out8 = _mm_sub_epi16(out8, sign8); - - // in = out * Q - in0 = _mm_mullo_epi16(out0, q0); - in8 = _mm_mullo_epi16(out8, q8); - - _mm_storeu_si128((__m128i*)&in[0], in0); - _mm_storeu_si128((__m128i*)&in[8], in8); - - // zigzag the output before storing it. - // - // The zigzag pattern can almost be reproduced with a small sequence of - // shuffles. After it, we only need to swap the 7th (ending up in third - // position instead of twelfth) and 8th values. - { - __m128i outZ0, outZ8; - outZ0 = _mm_shufflehi_epi16(out0, _MM_SHUFFLE(2, 1, 3, 0)); - outZ0 = _mm_shuffle_epi32 (outZ0, _MM_SHUFFLE(3, 1, 2, 0)); - outZ0 = _mm_shufflehi_epi16(outZ0, _MM_SHUFFLE(3, 1, 0, 2)); - outZ8 = _mm_shufflelo_epi16(out8, _MM_SHUFFLE(3, 0, 2, 1)); - outZ8 = _mm_shuffle_epi32 (outZ8, _MM_SHUFFLE(3, 1, 2, 0)); - outZ8 = _mm_shufflelo_epi16(outZ8, _MM_SHUFFLE(1, 3, 2, 0)); - _mm_storeu_si128((__m128i*)&out[0], outZ0); - _mm_storeu_si128((__m128i*)&out[8], outZ8); - packed_out = _mm_packs_epi16(outZ0, outZ8); - } - { - const int16_t outZ_12 = out[12]; - const int16_t outZ_3 = out[3]; - out[3] = outZ_12; - out[12] = outZ_3; - } - - // detect if all 'out' values are zeroes or not - return (_mm_movemask_epi8(_mm_cmpeq_epi8(packed_out, zero)) != 0xffff); -} - -static int QuantizeBlock(int16_t in[16], int16_t out[16], - const VP8Matrix* const mtx) { - return DoQuantizeBlock(in, out, &mtx->sharpen_[0], mtx); -} - -static int QuantizeBlockWHT(int16_t in[16], int16_t out[16], - const VP8Matrix* const mtx) { - return DoQuantizeBlock(in, out, NULL, mtx); -} - -static int Quantize2Blocks(int16_t in[32], int16_t out[32], - const VP8Matrix* const mtx) { - int nz; - const uint16_t* const sharpen = &mtx->sharpen_[0]; - nz = DoQuantizeBlock(in + 0 * 16, out + 0 * 16, sharpen, mtx) << 0; - nz |= DoQuantizeBlock(in + 1 * 16, out + 1 * 16, sharpen, mtx) << 1; - return nz; -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8EncDspInitSSE2(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitSSE2(void) { - VP8CollectHistogram = CollectHistogram; - VP8EncPredLuma16 = Intra16Preds; - VP8EncPredChroma8 = IntraChromaPreds; - VP8EncPredLuma4 = Intra4Preds; - VP8EncQuantizeBlock = QuantizeBlock; - VP8EncQuantize2Blocks = Quantize2Blocks; - VP8EncQuantizeBlockWHT = QuantizeBlockWHT; - VP8ITransform = ITransform; - VP8FTransform = FTransform; - VP8FTransform2 = FTransform2; - VP8FTransformWHT = FTransformWHT; - VP8SSE16x16 = SSE16x16; - VP8SSE16x8 = SSE16x8; - VP8SSE8x8 = SSE8x8; - VP8SSE4x4 = SSE4x4; - VP8TDisto4x4 = Disto4x4; - VP8TDisto16x16 = Disto16x16; -} - -#else // !WEBP_USE_SSE2 - -WEBP_DSP_INIT_STUB(VP8EncDspInitSSE2) - -#endif // WEBP_USE_SSE2 diff --git a/drivers/webp/dsp/enc_sse41.c b/drivers/webp/dsp/enc_sse41.c deleted file mode 100644 index a1783901a6..0000000000 --- a/drivers/webp/dsp/enc_sse41.c +++ /dev/null @@ -1,339 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// SSE4 version of some encoding functions. -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_SSE41) -#include <smmintrin.h> -#include <stdlib.h> // for abs() - -#include "./common_sse2.h" -#include "../enc/vp8enci.h" - -//------------------------------------------------------------------------------ -// Compute susceptibility based on DCT-coeff histograms. - -static void CollectHistogram(const uint8_t* ref, const uint8_t* pred, - int start_block, int end_block, - VP8Histogram* const histo) { - const __m128i max_coeff_thresh = _mm_set1_epi16(MAX_COEFF_THRESH); - int j; - int distribution[MAX_COEFF_THRESH + 1] = { 0 }; - for (j = start_block; j < end_block; ++j) { - int16_t out[16]; - int k; - - VP8FTransform(ref + VP8DspScan[j], pred + VP8DspScan[j], out); - - // Convert coefficients to bin (within out[]). - { - // Load. - const __m128i out0 = _mm_loadu_si128((__m128i*)&out[0]); - const __m128i out1 = _mm_loadu_si128((__m128i*)&out[8]); - // v = abs(out) >> 3 - const __m128i abs0 = _mm_abs_epi16(out0); - const __m128i abs1 = _mm_abs_epi16(out1); - const __m128i v0 = _mm_srai_epi16(abs0, 3); - const __m128i v1 = _mm_srai_epi16(abs1, 3); - // bin = min(v, MAX_COEFF_THRESH) - const __m128i bin0 = _mm_min_epi16(v0, max_coeff_thresh); - const __m128i bin1 = _mm_min_epi16(v1, max_coeff_thresh); - // Store. - _mm_storeu_si128((__m128i*)&out[0], bin0); - _mm_storeu_si128((__m128i*)&out[8], bin1); - } - - // Convert coefficients to bin. - for (k = 0; k < 16; ++k) { - ++distribution[out[k]]; - } - } - VP8SetHistogramData(distribution, histo); -} - -//------------------------------------------------------------------------------ -// Texture distortion -// -// We try to match the spectral content (weighted) between source and -// reconstructed samples. - -// Hadamard transform -// Returns the weighted sum of the absolute value of transformed coefficients. -// w[] contains a row-major 4 by 4 symmetric matrix. -static int TTransform(const uint8_t* inA, const uint8_t* inB, - const uint16_t* const w) { - int32_t sum[4]; - __m128i tmp_0, tmp_1, tmp_2, tmp_3; - - // Load and combine inputs. - { - const __m128i inA_0 = _mm_loadu_si128((const __m128i*)&inA[BPS * 0]); - const __m128i inA_1 = _mm_loadu_si128((const __m128i*)&inA[BPS * 1]); - const __m128i inA_2 = _mm_loadu_si128((const __m128i*)&inA[BPS * 2]); - // In SSE4.1, with gcc 4.8 at least (maybe other versions), - // _mm_loadu_si128 is faster than _mm_loadl_epi64. But for the last lump - // of inA and inB, _mm_loadl_epi64 is still used not to have an out of - // bound read. - const __m128i inA_3 = _mm_loadl_epi64((const __m128i*)&inA[BPS * 3]); - const __m128i inB_0 = _mm_loadu_si128((const __m128i*)&inB[BPS * 0]); - const __m128i inB_1 = _mm_loadu_si128((const __m128i*)&inB[BPS * 1]); - const __m128i inB_2 = _mm_loadu_si128((const __m128i*)&inB[BPS * 2]); - const __m128i inB_3 = _mm_loadl_epi64((const __m128i*)&inB[BPS * 3]); - - // Combine inA and inB (we'll do two transforms in parallel). - const __m128i inAB_0 = _mm_unpacklo_epi32(inA_0, inB_0); - const __m128i inAB_1 = _mm_unpacklo_epi32(inA_1, inB_1); - const __m128i inAB_2 = _mm_unpacklo_epi32(inA_2, inB_2); - const __m128i inAB_3 = _mm_unpacklo_epi32(inA_3, inB_3); - tmp_0 = _mm_cvtepu8_epi16(inAB_0); - tmp_1 = _mm_cvtepu8_epi16(inAB_1); - tmp_2 = _mm_cvtepu8_epi16(inAB_2); - tmp_3 = _mm_cvtepu8_epi16(inAB_3); - // a00 a01 a02 a03 b00 b01 b02 b03 - // a10 a11 a12 a13 b10 b11 b12 b13 - // a20 a21 a22 a23 b20 b21 b22 b23 - // a30 a31 a32 a33 b30 b31 b32 b33 - } - - // Vertical pass first to avoid a transpose (vertical and horizontal passes - // are commutative because w/kWeightY is symmetric) and subsequent transpose. - { - // Calculate a and b (two 4x4 at once). - const __m128i a0 = _mm_add_epi16(tmp_0, tmp_2); - const __m128i a1 = _mm_add_epi16(tmp_1, tmp_3); - const __m128i a2 = _mm_sub_epi16(tmp_1, tmp_3); - const __m128i a3 = _mm_sub_epi16(tmp_0, tmp_2); - const __m128i b0 = _mm_add_epi16(a0, a1); - const __m128i b1 = _mm_add_epi16(a3, a2); - const __m128i b2 = _mm_sub_epi16(a3, a2); - const __m128i b3 = _mm_sub_epi16(a0, a1); - // a00 a01 a02 a03 b00 b01 b02 b03 - // a10 a11 a12 a13 b10 b11 b12 b13 - // a20 a21 a22 a23 b20 b21 b22 b23 - // a30 a31 a32 a33 b30 b31 b32 b33 - - // Transpose the two 4x4. - VP8Transpose_2_4x4_16b(&b0, &b1, &b2, &b3, &tmp_0, &tmp_1, &tmp_2, &tmp_3); - } - - // Horizontal pass and difference of weighted sums. - { - // Load all inputs. - const __m128i w_0 = _mm_loadu_si128((const __m128i*)&w[0]); - const __m128i w_8 = _mm_loadu_si128((const __m128i*)&w[8]); - - // Calculate a and b (two 4x4 at once). - const __m128i a0 = _mm_add_epi16(tmp_0, tmp_2); - const __m128i a1 = _mm_add_epi16(tmp_1, tmp_3); - const __m128i a2 = _mm_sub_epi16(tmp_1, tmp_3); - const __m128i a3 = _mm_sub_epi16(tmp_0, tmp_2); - const __m128i b0 = _mm_add_epi16(a0, a1); - const __m128i b1 = _mm_add_epi16(a3, a2); - const __m128i b2 = _mm_sub_epi16(a3, a2); - const __m128i b3 = _mm_sub_epi16(a0, a1); - - // Separate the transforms of inA and inB. - __m128i A_b0 = _mm_unpacklo_epi64(b0, b1); - __m128i A_b2 = _mm_unpacklo_epi64(b2, b3); - __m128i B_b0 = _mm_unpackhi_epi64(b0, b1); - __m128i B_b2 = _mm_unpackhi_epi64(b2, b3); - - A_b0 = _mm_abs_epi16(A_b0); - A_b2 = _mm_abs_epi16(A_b2); - B_b0 = _mm_abs_epi16(B_b0); - B_b2 = _mm_abs_epi16(B_b2); - - // weighted sums - A_b0 = _mm_madd_epi16(A_b0, w_0); - A_b2 = _mm_madd_epi16(A_b2, w_8); - B_b0 = _mm_madd_epi16(B_b0, w_0); - B_b2 = _mm_madd_epi16(B_b2, w_8); - A_b0 = _mm_add_epi32(A_b0, A_b2); - B_b0 = _mm_add_epi32(B_b0, B_b2); - - // difference of weighted sums - A_b2 = _mm_sub_epi32(A_b0, B_b0); - _mm_storeu_si128((__m128i*)&sum[0], A_b2); - } - return sum[0] + sum[1] + sum[2] + sum[3]; -} - -static int Disto4x4(const uint8_t* const a, const uint8_t* const b, - const uint16_t* const w) { - const int diff_sum = TTransform(a, b, w); - return abs(diff_sum) >> 5; -} - -static int Disto16x16(const uint8_t* const a, const uint8_t* const b, - const uint16_t* const w) { - int D = 0; - int x, y; - for (y = 0; y < 16 * BPS; y += 4 * BPS) { - for (x = 0; x < 16; x += 4) { - D += Disto4x4(a + x + y, b + x + y, w); - } - } - return D; -} - -//------------------------------------------------------------------------------ -// Quantization -// - -// Generates a pshufb constant for shuffling 16b words. -#define PSHUFB_CST(A,B,C,D,E,F,G,H) \ - _mm_set_epi8(2 * (H) + 1, 2 * (H) + 0, 2 * (G) + 1, 2 * (G) + 0, \ - 2 * (F) + 1, 2 * (F) + 0, 2 * (E) + 1, 2 * (E) + 0, \ - 2 * (D) + 1, 2 * (D) + 0, 2 * (C) + 1, 2 * (C) + 0, \ - 2 * (B) + 1, 2 * (B) + 0, 2 * (A) + 1, 2 * (A) + 0) - -static WEBP_INLINE int DoQuantizeBlock(int16_t in[16], int16_t out[16], - const uint16_t* const sharpen, - const VP8Matrix* const mtx) { - const __m128i max_coeff_2047 = _mm_set1_epi16(MAX_LEVEL); - const __m128i zero = _mm_setzero_si128(); - __m128i out0, out8; - __m128i packed_out; - - // Load all inputs. - __m128i in0 = _mm_loadu_si128((__m128i*)&in[0]); - __m128i in8 = _mm_loadu_si128((__m128i*)&in[8]); - const __m128i iq0 = _mm_loadu_si128((const __m128i*)&mtx->iq_[0]); - const __m128i iq8 = _mm_loadu_si128((const __m128i*)&mtx->iq_[8]); - const __m128i q0 = _mm_loadu_si128((const __m128i*)&mtx->q_[0]); - const __m128i q8 = _mm_loadu_si128((const __m128i*)&mtx->q_[8]); - - // coeff = abs(in) - __m128i coeff0 = _mm_abs_epi16(in0); - __m128i coeff8 = _mm_abs_epi16(in8); - - // coeff = abs(in) + sharpen - if (sharpen != NULL) { - const __m128i sharpen0 = _mm_loadu_si128((const __m128i*)&sharpen[0]); - const __m128i sharpen8 = _mm_loadu_si128((const __m128i*)&sharpen[8]); - coeff0 = _mm_add_epi16(coeff0, sharpen0); - coeff8 = _mm_add_epi16(coeff8, sharpen8); - } - - // out = (coeff * iQ + B) >> QFIX - { - // doing calculations with 32b precision (QFIX=17) - // out = (coeff * iQ) - const __m128i coeff_iQ0H = _mm_mulhi_epu16(coeff0, iq0); - const __m128i coeff_iQ0L = _mm_mullo_epi16(coeff0, iq0); - const __m128i coeff_iQ8H = _mm_mulhi_epu16(coeff8, iq8); - const __m128i coeff_iQ8L = _mm_mullo_epi16(coeff8, iq8); - __m128i out_00 = _mm_unpacklo_epi16(coeff_iQ0L, coeff_iQ0H); - __m128i out_04 = _mm_unpackhi_epi16(coeff_iQ0L, coeff_iQ0H); - __m128i out_08 = _mm_unpacklo_epi16(coeff_iQ8L, coeff_iQ8H); - __m128i out_12 = _mm_unpackhi_epi16(coeff_iQ8L, coeff_iQ8H); - // out = (coeff * iQ + B) - const __m128i bias_00 = _mm_loadu_si128((const __m128i*)&mtx->bias_[0]); - const __m128i bias_04 = _mm_loadu_si128((const __m128i*)&mtx->bias_[4]); - const __m128i bias_08 = _mm_loadu_si128((const __m128i*)&mtx->bias_[8]); - const __m128i bias_12 = _mm_loadu_si128((const __m128i*)&mtx->bias_[12]); - out_00 = _mm_add_epi32(out_00, bias_00); - out_04 = _mm_add_epi32(out_04, bias_04); - out_08 = _mm_add_epi32(out_08, bias_08); - out_12 = _mm_add_epi32(out_12, bias_12); - // out = QUANTDIV(coeff, iQ, B, QFIX) - out_00 = _mm_srai_epi32(out_00, QFIX); - out_04 = _mm_srai_epi32(out_04, QFIX); - out_08 = _mm_srai_epi32(out_08, QFIX); - out_12 = _mm_srai_epi32(out_12, QFIX); - - // pack result as 16b - out0 = _mm_packs_epi32(out_00, out_04); - out8 = _mm_packs_epi32(out_08, out_12); - - // if (coeff > 2047) coeff = 2047 - out0 = _mm_min_epi16(out0, max_coeff_2047); - out8 = _mm_min_epi16(out8, max_coeff_2047); - } - - // put sign back - out0 = _mm_sign_epi16(out0, in0); - out8 = _mm_sign_epi16(out8, in8); - - // in = out * Q - in0 = _mm_mullo_epi16(out0, q0); - in8 = _mm_mullo_epi16(out8, q8); - - _mm_storeu_si128((__m128i*)&in[0], in0); - _mm_storeu_si128((__m128i*)&in[8], in8); - - // zigzag the output before storing it. The re-ordering is: - // 0 1 2 3 4 5 6 7 | 8 9 10 11 12 13 14 15 - // -> 0 1 4[8]5 2 3 6 | 9 12 13 10 [7]11 14 15 - // There's only two misplaced entries ([8] and [7]) that are crossing the - // reg's boundaries. - // We use pshufb instead of pshuflo/pshufhi. - { - const __m128i kCst_lo = PSHUFB_CST(0, 1, 4, -1, 5, 2, 3, 6); - const __m128i kCst_7 = PSHUFB_CST(-1, -1, -1, -1, 7, -1, -1, -1); - const __m128i tmp_lo = _mm_shuffle_epi8(out0, kCst_lo); - const __m128i tmp_7 = _mm_shuffle_epi8(out0, kCst_7); // extract #7 - const __m128i kCst_hi = PSHUFB_CST(1, 4, 5, 2, -1, 3, 6, 7); - const __m128i kCst_8 = PSHUFB_CST(-1, -1, -1, 0, -1, -1, -1, -1); - const __m128i tmp_hi = _mm_shuffle_epi8(out8, kCst_hi); - const __m128i tmp_8 = _mm_shuffle_epi8(out8, kCst_8); // extract #8 - const __m128i out_z0 = _mm_or_si128(tmp_lo, tmp_8); - const __m128i out_z8 = _mm_or_si128(tmp_hi, tmp_7); - _mm_storeu_si128((__m128i*)&out[0], out_z0); - _mm_storeu_si128((__m128i*)&out[8], out_z8); - packed_out = _mm_packs_epi16(out_z0, out_z8); - } - - // detect if all 'out' values are zeroes or not - return (_mm_movemask_epi8(_mm_cmpeq_epi8(packed_out, zero)) != 0xffff); -} - -#undef PSHUFB_CST - -static int QuantizeBlock(int16_t in[16], int16_t out[16], - const VP8Matrix* const mtx) { - return DoQuantizeBlock(in, out, &mtx->sharpen_[0], mtx); -} - -static int QuantizeBlockWHT(int16_t in[16], int16_t out[16], - const VP8Matrix* const mtx) { - return DoQuantizeBlock(in, out, NULL, mtx); -} - -static int Quantize2Blocks(int16_t in[32], int16_t out[32], - const VP8Matrix* const mtx) { - int nz; - const uint16_t* const sharpen = &mtx->sharpen_[0]; - nz = DoQuantizeBlock(in + 0 * 16, out + 0 * 16, sharpen, mtx) << 0; - nz |= DoQuantizeBlock(in + 1 * 16, out + 1 * 16, sharpen, mtx) << 1; - return nz; -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8EncDspInitSSE41(void); -WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitSSE41(void) { - VP8CollectHistogram = CollectHistogram; - VP8EncQuantizeBlock = QuantizeBlock; - VP8EncQuantize2Blocks = Quantize2Blocks; - VP8EncQuantizeBlockWHT = QuantizeBlockWHT; - VP8TDisto4x4 = Disto4x4; - VP8TDisto16x16 = Disto16x16; -} - -#else // !WEBP_USE_SSE41 - -WEBP_DSP_INIT_STUB(VP8EncDspInitSSE41) - -#endif // WEBP_USE_SSE41 diff --git a/drivers/webp/dsp/filters.c b/drivers/webp/dsp/filters.c deleted file mode 100644 index 9f04faf0cb..0000000000 --- a/drivers/webp/dsp/filters.c +++ /dev/null @@ -1,261 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Spatial prediction using various filters -// -// Author: Urvang (urvang@google.com) - -#include "./dsp.h" -#include <assert.h> -#include <stdlib.h> -#include <string.h> - -//------------------------------------------------------------------------------ -// Helpful macro. - -# define SANITY_CHECK(in, out) \ - assert(in != NULL); \ - assert(out != NULL); \ - assert(width > 0); \ - assert(height > 0); \ - assert(stride >= width); \ - assert(row >= 0 && num_rows > 0 && row + num_rows <= height); \ - (void)height; // Silence unused warning. - -static WEBP_INLINE void PredictLine(const uint8_t* src, const uint8_t* pred, - uint8_t* dst, int length, int inverse) { - int i; - if (inverse) { - for (i = 0; i < length; ++i) dst[i] = src[i] + pred[i]; - } else { - for (i = 0; i < length; ++i) dst[i] = src[i] - pred[i]; - } -} - -//------------------------------------------------------------------------------ -// Horizontal filter. - -static WEBP_INLINE void DoHorizontalFilter(const uint8_t* in, - int width, int height, int stride, - int row, int num_rows, - int inverse, uint8_t* out) { - const uint8_t* preds; - const size_t start_offset = row * stride; - const int last_row = row + num_rows; - SANITY_CHECK(in, out); - in += start_offset; - out += start_offset; - preds = inverse ? out : in; - - if (row == 0) { - // Leftmost pixel is the same as input for topmost scanline. - out[0] = in[0]; - PredictLine(in + 1, preds, out + 1, width - 1, inverse); - row = 1; - preds += stride; - in += stride; - out += stride; - } - - // Filter line-by-line. - while (row < last_row) { - // Leftmost pixel is predicted from above. - PredictLine(in, preds - stride, out, 1, inverse); - PredictLine(in + 1, preds, out + 1, width - 1, inverse); - ++row; - preds += stride; - in += stride; - out += stride; - } -} - -//------------------------------------------------------------------------------ -// Vertical filter. - -static WEBP_INLINE void DoVerticalFilter(const uint8_t* in, - int width, int height, int stride, - int row, int num_rows, - int inverse, uint8_t* out) { - const uint8_t* preds; - const size_t start_offset = row * stride; - const int last_row = row + num_rows; - SANITY_CHECK(in, out); - in += start_offset; - out += start_offset; - preds = inverse ? out : in; - - if (row == 0) { - // Very first top-left pixel is copied. - out[0] = in[0]; - // Rest of top scan-line is left-predicted. - PredictLine(in + 1, preds, out + 1, width - 1, inverse); - row = 1; - in += stride; - out += stride; - } else { - // We are starting from in-between. Make sure 'preds' points to prev row. - preds -= stride; - } - - // Filter line-by-line. - while (row < last_row) { - PredictLine(in, preds, out, width, inverse); - ++row; - preds += stride; - in += stride; - out += stride; - } -} - -//------------------------------------------------------------------------------ -// Gradient filter. - -static WEBP_INLINE int GradientPredictor(uint8_t a, uint8_t b, uint8_t c) { - const int g = a + b - c; - return ((g & ~0xff) == 0) ? g : (g < 0) ? 0 : 255; // clip to 8bit -} - -static WEBP_INLINE void DoGradientFilter(const uint8_t* in, - int width, int height, int stride, - int row, int num_rows, - int inverse, uint8_t* out) { - const uint8_t* preds; - const size_t start_offset = row * stride; - const int last_row = row + num_rows; - SANITY_CHECK(in, out); - in += start_offset; - out += start_offset; - preds = inverse ? out : in; - - // left prediction for top scan-line - if (row == 0) { - out[0] = in[0]; - PredictLine(in + 1, preds, out + 1, width - 1, inverse); - row = 1; - preds += stride; - in += stride; - out += stride; - } - - // Filter line-by-line. - while (row < last_row) { - int w; - // leftmost pixel: predict from above. - PredictLine(in, preds - stride, out, 1, inverse); - for (w = 1; w < width; ++w) { - const int pred = GradientPredictor(preds[w - 1], - preds[w - stride], - preds[w - stride - 1]); - out[w] = in[w] + (inverse ? pred : -pred); - } - ++row; - preds += stride; - in += stride; - out += stride; - } -} - -#undef SANITY_CHECK - -//------------------------------------------------------------------------------ - -static void HorizontalFilter(const uint8_t* data, int width, int height, - int stride, uint8_t* filtered_data) { - DoHorizontalFilter(data, width, height, stride, 0, height, 0, filtered_data); -} - -static void VerticalFilter(const uint8_t* data, int width, int height, - int stride, uint8_t* filtered_data) { - DoVerticalFilter(data, width, height, stride, 0, height, 0, filtered_data); -} - - -static void GradientFilter(const uint8_t* data, int width, int height, - int stride, uint8_t* filtered_data) { - DoGradientFilter(data, width, height, stride, 0, height, 0, filtered_data); -} - - -//------------------------------------------------------------------------------ - -static void HorizontalUnfilter(const uint8_t* prev, const uint8_t* in, - uint8_t* out, int width) { - uint8_t pred = (prev == NULL) ? 0 : prev[0]; - int i; - for (i = 0; i < width; ++i) { - out[i] = pred + in[i]; - pred = out[i]; - } -} - -static void VerticalUnfilter(const uint8_t* prev, const uint8_t* in, - uint8_t* out, int width) { - if (prev == NULL) { - HorizontalUnfilter(NULL, in, out, width); - } else { - int i; - for (i = 0; i < width; ++i) out[i] = prev[i] + in[i]; - } -} - -static void GradientUnfilter(const uint8_t* prev, const uint8_t* in, - uint8_t* out, int width) { - if (prev == NULL) { - HorizontalUnfilter(NULL, in, out, width); - } else { - uint8_t top = prev[0], top_left = top, left = top; - int i; - for (i = 0; i < width; ++i) { - top = prev[i]; // need to read this first, in case prev==out - left = in[i] + GradientPredictor(left, top, top_left); - top_left = top; - out[i] = left; - } - } -} - -//------------------------------------------------------------------------------ -// Init function - -WebPFilterFunc WebPFilters[WEBP_FILTER_LAST]; -WebPUnfilterFunc WebPUnfilters[WEBP_FILTER_LAST]; - -extern void VP8FiltersInitMIPSdspR2(void); -extern void VP8FiltersInitSSE2(void); - -static volatile VP8CPUInfo filters_last_cpuinfo_used = - (VP8CPUInfo)&filters_last_cpuinfo_used; - -WEBP_TSAN_IGNORE_FUNCTION void VP8FiltersInit(void) { - if (filters_last_cpuinfo_used == VP8GetCPUInfo) return; - - WebPUnfilters[WEBP_FILTER_NONE] = NULL; - WebPUnfilters[WEBP_FILTER_HORIZONTAL] = HorizontalUnfilter; - WebPUnfilters[WEBP_FILTER_VERTICAL] = VerticalUnfilter; - WebPUnfilters[WEBP_FILTER_GRADIENT] = GradientUnfilter; - - WebPFilters[WEBP_FILTER_NONE] = NULL; - WebPFilters[WEBP_FILTER_HORIZONTAL] = HorizontalFilter; - WebPFilters[WEBP_FILTER_VERTICAL] = VerticalFilter; - WebPFilters[WEBP_FILTER_GRADIENT] = GradientFilter; - - if (VP8GetCPUInfo != NULL) { -#if defined(WEBP_USE_SSE2) - if (VP8GetCPUInfo(kSSE2)) { - VP8FiltersInitSSE2(); - } -#endif -#if defined(WEBP_USE_MIPS_DSP_R2) - if (VP8GetCPUInfo(kMIPSdspR2)) { - VP8FiltersInitMIPSdspR2(); - } -#endif - } - filters_last_cpuinfo_used = VP8GetCPUInfo; -} diff --git a/drivers/webp/dsp/filters_mips_dsp_r2.c b/drivers/webp/dsp/filters_mips_dsp_r2.c deleted file mode 100644 index 1d82e3c2e1..0000000000 --- a/drivers/webp/dsp/filters_mips_dsp_r2.c +++ /dev/null @@ -1,395 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Spatial prediction using various filters -// -// Author(s): Branimir Vasic (branimir.vasic@imgtec.com) -// Djordje Pesut (djordje.pesut@imgtec.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_MIPS_DSP_R2) - -#include "../dsp/dsp.h" -#include <assert.h> -#include <stdlib.h> -#include <string.h> - -//------------------------------------------------------------------------------ -// Helpful macro. - -# define SANITY_CHECK(in, out) \ - assert(in != NULL); \ - assert(out != NULL); \ - assert(width > 0); \ - assert(height > 0); \ - assert(stride >= width); \ - assert(row >= 0 && num_rows > 0 && row + num_rows <= height); \ - (void)height; // Silence unused warning. - -#define DO_PREDICT_LINE(SRC, DST, LENGTH, INVERSE) do { \ - const uint8_t* psrc = (uint8_t*)(SRC); \ - uint8_t* pdst = (uint8_t*)(DST); \ - const int ilength = (int)(LENGTH); \ - int temp0, temp1, temp2, temp3, temp4, temp5, temp6; \ - __asm__ volatile ( \ - ".set push \n\t" \ - ".set noreorder \n\t" \ - "srl %[temp0], %[length], 2 \n\t" \ - "beqz %[temp0], 4f \n\t" \ - " andi %[temp6], %[length], 3 \n\t" \ - ".if " #INVERSE " \n\t" \ - "1: \n\t" \ - "lbu %[temp1], -1(%[dst]) \n\t" \ - "lbu %[temp2], 0(%[src]) \n\t" \ - "lbu %[temp3], 1(%[src]) \n\t" \ - "lbu %[temp4], 2(%[src]) \n\t" \ - "lbu %[temp5], 3(%[src]) \n\t" \ - "addu %[temp1], %[temp1], %[temp2] \n\t" \ - "addu %[temp2], %[temp1], %[temp3] \n\t" \ - "addu %[temp3], %[temp2], %[temp4] \n\t" \ - "addu %[temp4], %[temp3], %[temp5] \n\t" \ - "sb %[temp1], 0(%[dst]) \n\t" \ - "sb %[temp2], 1(%[dst]) \n\t" \ - "sb %[temp3], 2(%[dst]) \n\t" \ - "sb %[temp4], 3(%[dst]) \n\t" \ - "addiu %[src], %[src], 4 \n\t" \ - "addiu %[temp0], %[temp0], -1 \n\t" \ - "bnez %[temp0], 1b \n\t" \ - " addiu %[dst], %[dst], 4 \n\t" \ - ".else \n\t" \ - "1: \n\t" \ - "ulw %[temp1], -1(%[src]) \n\t" \ - "ulw %[temp2], 0(%[src]) \n\t" \ - "addiu %[src], %[src], 4 \n\t" \ - "addiu %[temp0], %[temp0], -1 \n\t" \ - "subu.qb %[temp3], %[temp2], %[temp1] \n\t" \ - "usw %[temp3], 0(%[dst]) \n\t" \ - "bnez %[temp0], 1b \n\t" \ - " addiu %[dst], %[dst], 4 \n\t" \ - ".endif \n\t" \ - "4: \n\t" \ - "beqz %[temp6], 3f \n\t" \ - " nop \n\t" \ - "2: \n\t" \ - "lbu %[temp2], 0(%[src]) \n\t" \ - ".if " #INVERSE " \n\t" \ - "lbu %[temp1], -1(%[dst]) \n\t" \ - "addu %[temp3], %[temp1], %[temp2] \n\t" \ - ".else \n\t" \ - "lbu %[temp1], -1(%[src]) \n\t" \ - "subu %[temp3], %[temp1], %[temp2] \n\t" \ - ".endif \n\t" \ - "addiu %[src], %[src], 1 \n\t" \ - "sb %[temp3], 0(%[dst]) \n\t" \ - "addiu %[temp6], %[temp6], -1 \n\t" \ - "bnez %[temp6], 2b \n\t" \ - " addiu %[dst], %[dst], 1 \n\t" \ - "3: \n\t" \ - ".set pop \n\t" \ - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), \ - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), \ - [temp6]"=&r"(temp6), [dst]"+&r"(pdst), [src]"+&r"(psrc) \ - : [length]"r"(ilength) \ - : "memory" \ - ); \ - } while (0) - -static WEBP_INLINE void PredictLine(const uint8_t* src, uint8_t* dst, - int length) { - DO_PREDICT_LINE(src, dst, length, 0); -} - -#define DO_PREDICT_LINE_VERTICAL(SRC, PRED, DST, LENGTH, INVERSE) do { \ - const uint8_t* psrc = (uint8_t*)(SRC); \ - const uint8_t* ppred = (uint8_t*)(PRED); \ - uint8_t* pdst = (uint8_t*)(DST); \ - const int ilength = (int)(LENGTH); \ - int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7; \ - __asm__ volatile ( \ - ".set push \n\t" \ - ".set noreorder \n\t" \ - "srl %[temp0], %[length], 0x3 \n\t" \ - "beqz %[temp0], 4f \n\t" \ - " andi %[temp7], %[length], 0x7 \n\t" \ - "1: \n\t" \ - "ulw %[temp1], 0(%[src]) \n\t" \ - "ulw %[temp2], 0(%[pred]) \n\t" \ - "ulw %[temp3], 4(%[src]) \n\t" \ - "ulw %[temp4], 4(%[pred]) \n\t" \ - "addiu %[src], %[src], 8 \n\t" \ - ".if " #INVERSE " \n\t" \ - "addu.qb %[temp5], %[temp1], %[temp2] \n\t" \ - "addu.qb %[temp6], %[temp3], %[temp4] \n\t" \ - ".else \n\t" \ - "subu.qb %[temp5], %[temp1], %[temp2] \n\t" \ - "subu.qb %[temp6], %[temp3], %[temp4] \n\t" \ - ".endif \n\t" \ - "addiu %[pred], %[pred], 8 \n\t" \ - "usw %[temp5], 0(%[dst]) \n\t" \ - "usw %[temp6], 4(%[dst]) \n\t" \ - "addiu %[temp0], %[temp0], -1 \n\t" \ - "bnez %[temp0], 1b \n\t" \ - " addiu %[dst], %[dst], 8 \n\t" \ - "4: \n\t" \ - "beqz %[temp7], 3f \n\t" \ - " nop \n\t" \ - "2: \n\t" \ - "lbu %[temp1], 0(%[src]) \n\t" \ - "lbu %[temp2], 0(%[pred]) \n\t" \ - "addiu %[src], %[src], 1 \n\t" \ - "addiu %[pred], %[pred], 1 \n\t" \ - ".if " #INVERSE " \n\t" \ - "addu %[temp3], %[temp1], %[temp2] \n\t" \ - ".else \n\t" \ - "subu %[temp3], %[temp1], %[temp2] \n\t" \ - ".endif \n\t" \ - "sb %[temp3], 0(%[dst]) \n\t" \ - "addiu %[temp7], %[temp7], -1 \n\t" \ - "bnez %[temp7], 2b \n\t" \ - " addiu %[dst], %[dst], 1 \n\t" \ - "3: \n\t" \ - ".set pop \n\t" \ - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), \ - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), \ - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [pred]"+&r"(ppred), \ - [dst]"+&r"(pdst), [src]"+&r"(psrc) \ - : [length]"r"(ilength) \ - : "memory" \ - ); \ - } while (0) - -#define PREDICT_LINE_ONE_PASS(SRC, PRED, DST) do { \ - int temp1, temp2, temp3; \ - __asm__ volatile ( \ - "lbu %[temp1], 0(%[src]) \n\t" \ - "lbu %[temp2], 0(%[pred]) \n\t" \ - "subu %[temp3], %[temp1], %[temp2] \n\t" \ - "sb %[temp3], 0(%[dst]) \n\t" \ - : [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), [temp3]"=&r"(temp3) \ - : [pred]"r"((PRED)), [dst]"r"((DST)), [src]"r"((SRC)) \ - : "memory" \ - ); \ - } while (0) - -//------------------------------------------------------------------------------ -// Horizontal filter. - -#define FILTER_LINE_BY_LINE do { \ - while (row < last_row) { \ - PREDICT_LINE_ONE_PASS(in, preds - stride, out); \ - DO_PREDICT_LINE(in + 1, out + 1, width - 1, 0); \ - ++row; \ - preds += stride; \ - in += stride; \ - out += stride; \ - } \ - } while (0) - -static WEBP_INLINE void DoHorizontalFilter(const uint8_t* in, - int width, int height, int stride, - int row, int num_rows, - uint8_t* out) { - const uint8_t* preds; - const size_t start_offset = row * stride; - const int last_row = row + num_rows; - SANITY_CHECK(in, out); - in += start_offset; - out += start_offset; - preds = in; - - if (row == 0) { - // Leftmost pixel is the same as input for topmost scanline. - out[0] = in[0]; - PredictLine(in + 1, out + 1, width - 1); - row = 1; - preds += stride; - in += stride; - out += stride; - } - - // Filter line-by-line. - FILTER_LINE_BY_LINE; -} -#undef FILTER_LINE_BY_LINE - -static void HorizontalFilter(const uint8_t* data, int width, int height, - int stride, uint8_t* filtered_data) { - DoHorizontalFilter(data, width, height, stride, 0, height, filtered_data); -} - -//------------------------------------------------------------------------------ -// Vertical filter. - -#define FILTER_LINE_BY_LINE do { \ - while (row < last_row) { \ - DO_PREDICT_LINE_VERTICAL(in, preds, out, width, 0); \ - ++row; \ - preds += stride; \ - in += stride; \ - out += stride; \ - } \ - } while (0) - -static WEBP_INLINE void DoVerticalFilter(const uint8_t* in, - int width, int height, int stride, - int row, int num_rows, uint8_t* out) { - const uint8_t* preds; - const size_t start_offset = row * stride; - const int last_row = row + num_rows; - SANITY_CHECK(in, out); - in += start_offset; - out += start_offset; - preds = in; - - if (row == 0) { - // Very first top-left pixel is copied. - out[0] = in[0]; - // Rest of top scan-line is left-predicted. - PredictLine(in + 1, out + 1, width - 1); - row = 1; - in += stride; - out += stride; - } else { - // We are starting from in-between. Make sure 'preds' points to prev row. - preds -= stride; - } - - // Filter line-by-line. - FILTER_LINE_BY_LINE; -} -#undef FILTER_LINE_BY_LINE - -static void VerticalFilter(const uint8_t* data, int width, int height, - int stride, uint8_t* filtered_data) { - DoVerticalFilter(data, width, height, stride, 0, height, filtered_data); -} - -//------------------------------------------------------------------------------ -// Gradient filter. - -static WEBP_INLINE int GradientPredictor(uint8_t a, uint8_t b, uint8_t c) { - int temp0; - __asm__ volatile ( - "addu %[temp0], %[a], %[b] \n\t" - "subu %[temp0], %[temp0], %[c] \n\t" - "shll_s.w %[temp0], %[temp0], 23 \n\t" - "precrqu_s.qb.ph %[temp0], %[temp0], $zero \n\t" - "srl %[temp0], %[temp0], 24 \n\t" - : [temp0]"=&r"(temp0) - : [a]"r"(a),[b]"r"(b),[c]"r"(c) - ); - return temp0; -} - -#define FILTER_LINE_BY_LINE(PREDS, OPERATION) do { \ - while (row < last_row) { \ - int w; \ - PREDICT_LINE_ONE_PASS(in, PREDS - stride, out); \ - for (w = 1; w < width; ++w) { \ - const int pred = GradientPredictor(PREDS[w - 1], \ - PREDS[w - stride], \ - PREDS[w - stride - 1]); \ - out[w] = in[w] OPERATION pred; \ - } \ - ++row; \ - in += stride; \ - out += stride; \ - } \ - } while (0) - -static WEBP_INLINE void DoGradientFilter(const uint8_t* in, - int width, int height, int stride, - int row, int num_rows, uint8_t* out) { - const uint8_t* preds; - const size_t start_offset = row * stride; - const int last_row = row + num_rows; - SANITY_CHECK(in, out); - in += start_offset; - out += start_offset; - preds = in; - - // left prediction for top scan-line - if (row == 0) { - out[0] = in[0]; - PredictLine(in + 1, out + 1, width - 1); - row = 1; - preds += stride; - in += stride; - out += stride; - } - - // Filter line-by-line. - FILTER_LINE_BY_LINE(in, -); -} -#undef FILTER_LINE_BY_LINE - -static void GradientFilter(const uint8_t* data, int width, int height, - int stride, uint8_t* filtered_data) { - DoGradientFilter(data, width, height, stride, 0, height, filtered_data); -} - -//------------------------------------------------------------------------------ - -static void HorizontalUnfilter(const uint8_t* prev, const uint8_t* in, - uint8_t* out, int width) { - out[0] = in[0] + (prev == NULL ? 0 : prev[0]); - DO_PREDICT_LINE(in + 1, out + 1, width - 1, 1); -} - -static void VerticalUnfilter(const uint8_t* prev, const uint8_t* in, - uint8_t* out, int width) { - if (prev == NULL) { - HorizontalUnfilter(NULL, in, out, width); - } else { - DO_PREDICT_LINE_VERTICAL(in, prev, out, width, 1); - } -} - -static void GradientUnfilter(const uint8_t* prev, const uint8_t* in, - uint8_t* out, int width) { - if (prev == NULL) { - HorizontalUnfilter(NULL, in, out, width); - } else { - uint8_t top = prev[0], top_left = top, left = top; - int i; - for (i = 0; i < width; ++i) { - top = prev[i]; // need to read this first, in case prev==dst - left = in[i] + GradientPredictor(left, top, top_left); - top_left = top; - out[i] = left; - } - } -} - -#undef DO_PREDICT_LINE_VERTICAL -#undef PREDICT_LINE_ONE_PASS -#undef DO_PREDICT_LINE -#undef SANITY_CHECK - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8FiltersInitMIPSdspR2(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8FiltersInitMIPSdspR2(void) { - WebPUnfilters[WEBP_FILTER_HORIZONTAL] = HorizontalUnfilter; - WebPUnfilters[WEBP_FILTER_VERTICAL] = VerticalUnfilter; - WebPUnfilters[WEBP_FILTER_GRADIENT] = GradientUnfilter; - - WebPFilters[WEBP_FILTER_HORIZONTAL] = HorizontalFilter; - WebPFilters[WEBP_FILTER_VERTICAL] = VerticalFilter; - WebPFilters[WEBP_FILTER_GRADIENT] = GradientFilter; -} - -#else // !WEBP_USE_MIPS_DSP_R2 - -WEBP_DSP_INIT_STUB(VP8FiltersInitMIPSdspR2) - -#endif // WEBP_USE_MIPS_DSP_R2 diff --git a/drivers/webp/dsp/filters_sse2.c b/drivers/webp/dsp/filters_sse2.c deleted file mode 100644 index 67f77999e6..0000000000 --- a/drivers/webp/dsp/filters_sse2.c +++ /dev/null @@ -1,330 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// SSE2 variant of alpha filters -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_SSE2) - -#include <assert.h> -#include <emmintrin.h> -#include <stdlib.h> -#include <string.h> - -//------------------------------------------------------------------------------ -// Helpful macro. - -# define SANITY_CHECK(in, out) \ - assert(in != NULL); \ - assert(out != NULL); \ - assert(width > 0); \ - assert(height > 0); \ - assert(stride >= width); \ - assert(row >= 0 && num_rows > 0 && row + num_rows <= height); \ - (void)height; // Silence unused warning. - -static void PredictLineTop(const uint8_t* src, const uint8_t* pred, - uint8_t* dst, int length) { - int i; - const int max_pos = length & ~31; - assert(length >= 0); - for (i = 0; i < max_pos; i += 32) { - const __m128i A0 = _mm_loadu_si128((const __m128i*)&src[i + 0]); - const __m128i A1 = _mm_loadu_si128((const __m128i*)&src[i + 16]); - const __m128i B0 = _mm_loadu_si128((const __m128i*)&pred[i + 0]); - const __m128i B1 = _mm_loadu_si128((const __m128i*)&pred[i + 16]); - const __m128i C0 = _mm_sub_epi8(A0, B0); - const __m128i C1 = _mm_sub_epi8(A1, B1); - _mm_storeu_si128((__m128i*)&dst[i + 0], C0); - _mm_storeu_si128((__m128i*)&dst[i + 16], C1); - } - for (; i < length; ++i) dst[i] = src[i] - pred[i]; -} - -// Special case for left-based prediction (when preds==dst-1 or preds==src-1). -static void PredictLineLeft(const uint8_t* src, uint8_t* dst, int length) { - int i; - const int max_pos = length & ~31; - assert(length >= 0); - for (i = 0; i < max_pos; i += 32) { - const __m128i A0 = _mm_loadu_si128((const __m128i*)(src + i + 0 )); - const __m128i B0 = _mm_loadu_si128((const __m128i*)(src + i + 0 - 1)); - const __m128i A1 = _mm_loadu_si128((const __m128i*)(src + i + 16 )); - const __m128i B1 = _mm_loadu_si128((const __m128i*)(src + i + 16 - 1)); - const __m128i C0 = _mm_sub_epi8(A0, B0); - const __m128i C1 = _mm_sub_epi8(A1, B1); - _mm_storeu_si128((__m128i*)(dst + i + 0), C0); - _mm_storeu_si128((__m128i*)(dst + i + 16), C1); - } - for (; i < length; ++i) dst[i] = src[i] - src[i - 1]; -} - -//------------------------------------------------------------------------------ -// Horizontal filter. - -static WEBP_INLINE void DoHorizontalFilter(const uint8_t* in, - int width, int height, int stride, - int row, int num_rows, - uint8_t* out) { - const size_t start_offset = row * stride; - const int last_row = row + num_rows; - SANITY_CHECK(in, out); - in += start_offset; - out += start_offset; - - if (row == 0) { - // Leftmost pixel is the same as input for topmost scanline. - out[0] = in[0]; - PredictLineLeft(in + 1, out + 1, width - 1); - row = 1; - in += stride; - out += stride; - } - - // Filter line-by-line. - while (row < last_row) { - // Leftmost pixel is predicted from above. - out[0] = in[0] - in[-stride]; - PredictLineLeft(in + 1, out + 1, width - 1); - ++row; - in += stride; - out += stride; - } -} - -//------------------------------------------------------------------------------ -// Vertical filter. - -static WEBP_INLINE void DoVerticalFilter(const uint8_t* in, - int width, int height, int stride, - int row, int num_rows, uint8_t* out) { - const size_t start_offset = row * stride; - const int last_row = row + num_rows; - SANITY_CHECK(in, out); - in += start_offset; - out += start_offset; - - if (row == 0) { - // Very first top-left pixel is copied. - out[0] = in[0]; - // Rest of top scan-line is left-predicted. - PredictLineLeft(in + 1, out + 1, width - 1); - row = 1; - in += stride; - out += stride; - } - - // Filter line-by-line. - while (row < last_row) { - PredictLineTop(in, in - stride, out, width); - ++row; - in += stride; - out += stride; - } -} - -//------------------------------------------------------------------------------ -// Gradient filter. - -static WEBP_INLINE int GradientPredictorC(uint8_t a, uint8_t b, uint8_t c) { - const int g = a + b - c; - return ((g & ~0xff) == 0) ? g : (g < 0) ? 0 : 255; // clip to 8bit -} - -static void GradientPredictDirect(const uint8_t* const row, - const uint8_t* const top, - uint8_t* const out, int length) { - const int max_pos = length & ~7; - int i; - const __m128i zero = _mm_setzero_si128(); - for (i = 0; i < max_pos; i += 8) { - const __m128i A0 = _mm_loadl_epi64((const __m128i*)&row[i - 1]); - const __m128i B0 = _mm_loadl_epi64((const __m128i*)&top[i]); - const __m128i C0 = _mm_loadl_epi64((const __m128i*)&top[i - 1]); - const __m128i D = _mm_loadl_epi64((const __m128i*)&row[i]); - const __m128i A1 = _mm_unpacklo_epi8(A0, zero); - const __m128i B1 = _mm_unpacklo_epi8(B0, zero); - const __m128i C1 = _mm_unpacklo_epi8(C0, zero); - const __m128i E = _mm_add_epi16(A1, B1); - const __m128i F = _mm_sub_epi16(E, C1); - const __m128i G = _mm_packus_epi16(F, zero); - const __m128i H = _mm_sub_epi8(D, G); - _mm_storel_epi64((__m128i*)(out + i), H); - } - for (; i < length; ++i) { - out[i] = row[i] - GradientPredictorC(row[i - 1], top[i], top[i - 1]); - } -} - -static WEBP_INLINE void DoGradientFilter(const uint8_t* in, - int width, int height, int stride, - int row, int num_rows, - uint8_t* out) { - const size_t start_offset = row * stride; - const int last_row = row + num_rows; - SANITY_CHECK(in, out); - in += start_offset; - out += start_offset; - - // left prediction for top scan-line - if (row == 0) { - out[0] = in[0]; - PredictLineLeft(in + 1, out + 1, width - 1); - row = 1; - in += stride; - out += stride; - } - - // Filter line-by-line. - while (row < last_row) { - out[0] = in[0] - in[-stride]; - GradientPredictDirect(in + 1, in + 1 - stride, out + 1, width - 1); - ++row; - in += stride; - out += stride; - } -} - -#undef SANITY_CHECK - -//------------------------------------------------------------------------------ - -static void HorizontalFilter(const uint8_t* data, int width, int height, - int stride, uint8_t* filtered_data) { - DoHorizontalFilter(data, width, height, stride, 0, height, filtered_data); -} - -static void VerticalFilter(const uint8_t* data, int width, int height, - int stride, uint8_t* filtered_data) { - DoVerticalFilter(data, width, height, stride, 0, height, filtered_data); -} - -static void GradientFilter(const uint8_t* data, int width, int height, - int stride, uint8_t* filtered_data) { - DoGradientFilter(data, width, height, stride, 0, height, filtered_data); -} - -//------------------------------------------------------------------------------ -// Inverse transforms - -static void HorizontalUnfilter(const uint8_t* prev, const uint8_t* in, - uint8_t* out, int width) { - int i; - __m128i last; - out[0] = in[0] + (prev == NULL ? 0 : prev[0]); - if (width <= 1) return; - last = _mm_set_epi32(0, 0, 0, out[0]); - for (i = 1; i + 8 <= width; i += 8) { - const __m128i A0 = _mm_loadl_epi64((const __m128i*)(in + i)); - const __m128i A1 = _mm_add_epi8(A0, last); - const __m128i A2 = _mm_slli_si128(A1, 1); - const __m128i A3 = _mm_add_epi8(A1, A2); - const __m128i A4 = _mm_slli_si128(A3, 2); - const __m128i A5 = _mm_add_epi8(A3, A4); - const __m128i A6 = _mm_slli_si128(A5, 4); - const __m128i A7 = _mm_add_epi8(A5, A6); - _mm_storel_epi64((__m128i*)(out + i), A7); - last = _mm_srli_epi64(A7, 56); - } - for (; i < width; ++i) out[i] = in[i] + out[i - 1]; -} - -static void VerticalUnfilter(const uint8_t* prev, const uint8_t* in, - uint8_t* out, int width) { - if (prev == NULL) { - HorizontalUnfilter(NULL, in, out, width); - } else { - int i; - const int max_pos = width & ~31; - assert(width >= 0); - for (i = 0; i < max_pos; i += 32) { - const __m128i A0 = _mm_loadu_si128((const __m128i*)&in[i + 0]); - const __m128i A1 = _mm_loadu_si128((const __m128i*)&in[i + 16]); - const __m128i B0 = _mm_loadu_si128((const __m128i*)&prev[i + 0]); - const __m128i B1 = _mm_loadu_si128((const __m128i*)&prev[i + 16]); - const __m128i C0 = _mm_add_epi8(A0, B0); - const __m128i C1 = _mm_add_epi8(A1, B1); - _mm_storeu_si128((__m128i*)&out[i + 0], C0); - _mm_storeu_si128((__m128i*)&out[i + 16], C1); - } - for (; i < width; ++i) out[i] = in[i] + prev[i]; - } -} - -static void GradientPredictInverse(const uint8_t* const in, - const uint8_t* const top, - uint8_t* const row, int length) { - if (length > 0) { - int i; - const int max_pos = length & ~7; - const __m128i zero = _mm_setzero_si128(); - __m128i A = _mm_set_epi32(0, 0, 0, row[-1]); // left sample - for (i = 0; i < max_pos; i += 8) { - const __m128i tmp0 = _mm_loadl_epi64((const __m128i*)&top[i]); - const __m128i tmp1 = _mm_loadl_epi64((const __m128i*)&top[i - 1]); - const __m128i B = _mm_unpacklo_epi8(tmp0, zero); - const __m128i C = _mm_unpacklo_epi8(tmp1, zero); - const __m128i D = _mm_loadl_epi64((const __m128i*)&in[i]); // base input - const __m128i E = _mm_sub_epi16(B, C); // unclipped gradient basis B - C - __m128i out = zero; // accumulator for output - __m128i mask_hi = _mm_set_epi32(0, 0, 0, 0xff); - int k = 8; - while (1) { - const __m128i tmp3 = _mm_add_epi16(A, E); // delta = A + B - C - const __m128i tmp4 = _mm_packus_epi16(tmp3, zero); // saturate delta - const __m128i tmp5 = _mm_add_epi8(tmp4, D); // add to in[] - A = _mm_and_si128(tmp5, mask_hi); // 1-complement clip - out = _mm_or_si128(out, A); // accumulate output - if (--k == 0) break; - A = _mm_slli_si128(A, 1); // rotate left sample - mask_hi = _mm_slli_si128(mask_hi, 1); // rotate mask - A = _mm_unpacklo_epi8(A, zero); // convert 8b->16b - } - A = _mm_srli_si128(A, 7); // prepare left sample for next iteration - _mm_storel_epi64((__m128i*)&row[i], out); - } - for (; i < length; ++i) { - row[i] = in[i] + GradientPredictorC(row[i - 1], top[i], top[i - 1]); - } - } -} - -static void GradientUnfilter(const uint8_t* prev, const uint8_t* in, - uint8_t* out, int width) { - if (prev == NULL) { - HorizontalUnfilter(NULL, in, out, width); - } else { - out[0] = in[0] + prev[0]; // predict from above - GradientPredictInverse(in + 1, prev + 1, out + 1, width - 1); - } -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8FiltersInitSSE2(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8FiltersInitSSE2(void) { - WebPUnfilters[WEBP_FILTER_HORIZONTAL] = HorizontalUnfilter; - WebPUnfilters[WEBP_FILTER_VERTICAL] = VerticalUnfilter; - WebPUnfilters[WEBP_FILTER_GRADIENT] = GradientUnfilter; - - WebPFilters[WEBP_FILTER_HORIZONTAL] = HorizontalFilter; - WebPFilters[WEBP_FILTER_VERTICAL] = VerticalFilter; - WebPFilters[WEBP_FILTER_GRADIENT] = GradientFilter; -} - -#else // !WEBP_USE_SSE2 - -WEBP_DSP_INIT_STUB(VP8FiltersInitSSE2) - -#endif // WEBP_USE_SSE2 diff --git a/drivers/webp/dsp/lossless.c b/drivers/webp/dsp/lossless.c deleted file mode 100644 index af913efccb..0000000000 --- a/drivers/webp/dsp/lossless.c +++ /dev/null @@ -1,633 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Image transforms and color space conversion methods for lossless decoder. -// -// Authors: Vikas Arora (vikaas.arora@gmail.com) -// Jyrki Alakuijala (jyrki@google.com) -// Urvang Joshi (urvang@google.com) - -#include "./dsp.h" - -#include <math.h> -#include <stdlib.h> -#include "../dec/vp8li.h" -#include "../utils/endian_inl.h" -#include "./lossless.h" - -#define MAX_DIFF_COST (1e30f) - -//------------------------------------------------------------------------------ -// Image transforms. - -// In-place sum of each component with mod 256. -static WEBP_INLINE void AddPixelsEq(uint32_t* a, uint32_t b) { - *a = VP8LAddPixels(*a, b); -} - -static WEBP_INLINE uint32_t Average2(uint32_t a0, uint32_t a1) { - return (((a0 ^ a1) & 0xfefefefeu) >> 1) + (a0 & a1); -} - -static WEBP_INLINE uint32_t Average3(uint32_t a0, uint32_t a1, uint32_t a2) { - return Average2(Average2(a0, a2), a1); -} - -static WEBP_INLINE uint32_t Average4(uint32_t a0, uint32_t a1, - uint32_t a2, uint32_t a3) { - return Average2(Average2(a0, a1), Average2(a2, a3)); -} - -static WEBP_INLINE uint32_t Clip255(uint32_t a) { - if (a < 256) { - return a; - } - // return 0, when a is a negative integer. - // return 255, when a is positive. - return ~a >> 24; -} - -static WEBP_INLINE int AddSubtractComponentFull(int a, int b, int c) { - return Clip255(a + b - c); -} - -static WEBP_INLINE uint32_t ClampedAddSubtractFull(uint32_t c0, uint32_t c1, - uint32_t c2) { - const int a = AddSubtractComponentFull(c0 >> 24, c1 >> 24, c2 >> 24); - const int r = AddSubtractComponentFull((c0 >> 16) & 0xff, - (c1 >> 16) & 0xff, - (c2 >> 16) & 0xff); - const int g = AddSubtractComponentFull((c0 >> 8) & 0xff, - (c1 >> 8) & 0xff, - (c2 >> 8) & 0xff); - const int b = AddSubtractComponentFull(c0 & 0xff, c1 & 0xff, c2 & 0xff); - return ((uint32_t)a << 24) | (r << 16) | (g << 8) | b; -} - -static WEBP_INLINE int AddSubtractComponentHalf(int a, int b) { - return Clip255(a + (a - b) / 2); -} - -static WEBP_INLINE uint32_t ClampedAddSubtractHalf(uint32_t c0, uint32_t c1, - uint32_t c2) { - const uint32_t ave = Average2(c0, c1); - const int a = AddSubtractComponentHalf(ave >> 24, c2 >> 24); - const int r = AddSubtractComponentHalf((ave >> 16) & 0xff, (c2 >> 16) & 0xff); - const int g = AddSubtractComponentHalf((ave >> 8) & 0xff, (c2 >> 8) & 0xff); - const int b = AddSubtractComponentHalf((ave >> 0) & 0xff, (c2 >> 0) & 0xff); - return ((uint32_t)a << 24) | (r << 16) | (g << 8) | b; -} - -// gcc-4.9 on ARM generates incorrect code in Select() when Sub3() is inlined. -#if defined(__arm__) && LOCAL_GCC_VERSION == 0x409 -# define LOCAL_INLINE __attribute__ ((noinline)) -#else -# define LOCAL_INLINE WEBP_INLINE -#endif - -static LOCAL_INLINE int Sub3(int a, int b, int c) { - const int pb = b - c; - const int pa = a - c; - return abs(pb) - abs(pa); -} - -#undef LOCAL_INLINE - -static WEBP_INLINE uint32_t Select(uint32_t a, uint32_t b, uint32_t c) { - const int pa_minus_pb = - Sub3((a >> 24) , (b >> 24) , (c >> 24) ) + - Sub3((a >> 16) & 0xff, (b >> 16) & 0xff, (c >> 16) & 0xff) + - Sub3((a >> 8) & 0xff, (b >> 8) & 0xff, (c >> 8) & 0xff) + - Sub3((a ) & 0xff, (b ) & 0xff, (c ) & 0xff); - return (pa_minus_pb <= 0) ? a : b; -} - -//------------------------------------------------------------------------------ -// Predictors - -static uint32_t Predictor0(uint32_t left, const uint32_t* const top) { - (void)top; - (void)left; - return ARGB_BLACK; -} -static uint32_t Predictor1(uint32_t left, const uint32_t* const top) { - (void)top; - return left; -} -static uint32_t Predictor2(uint32_t left, const uint32_t* const top) { - (void)left; - return top[0]; -} -static uint32_t Predictor3(uint32_t left, const uint32_t* const top) { - (void)left; - return top[1]; -} -static uint32_t Predictor4(uint32_t left, const uint32_t* const top) { - (void)left; - return top[-1]; -} -static uint32_t Predictor5(uint32_t left, const uint32_t* const top) { - const uint32_t pred = Average3(left, top[0], top[1]); - return pred; -} -static uint32_t Predictor6(uint32_t left, const uint32_t* const top) { - const uint32_t pred = Average2(left, top[-1]); - return pred; -} -static uint32_t Predictor7(uint32_t left, const uint32_t* const top) { - const uint32_t pred = Average2(left, top[0]); - return pred; -} -static uint32_t Predictor8(uint32_t left, const uint32_t* const top) { - const uint32_t pred = Average2(top[-1], top[0]); - (void)left; - return pred; -} -static uint32_t Predictor9(uint32_t left, const uint32_t* const top) { - const uint32_t pred = Average2(top[0], top[1]); - (void)left; - return pred; -} -static uint32_t Predictor10(uint32_t left, const uint32_t* const top) { - const uint32_t pred = Average4(left, top[-1], top[0], top[1]); - return pred; -} -static uint32_t Predictor11(uint32_t left, const uint32_t* const top) { - const uint32_t pred = Select(top[0], left, top[-1]); - return pred; -} -static uint32_t Predictor12(uint32_t left, const uint32_t* const top) { - const uint32_t pred = ClampedAddSubtractFull(left, top[0], top[-1]); - return pred; -} -static uint32_t Predictor13(uint32_t left, const uint32_t* const top) { - const uint32_t pred = ClampedAddSubtractHalf(left, top[0], top[-1]); - return pred; -} - -//------------------------------------------------------------------------------ - -// Inverse prediction. -static void PredictorInverseTransform(const VP8LTransform* const transform, - int y_start, int y_end, uint32_t* data) { - const int width = transform->xsize_; - if (y_start == 0) { // First Row follows the L (mode=1) mode. - int x; - const uint32_t pred0 = Predictor0(data[-1], NULL); - AddPixelsEq(data, pred0); - for (x = 1; x < width; ++x) { - const uint32_t pred1 = Predictor1(data[x - 1], NULL); - AddPixelsEq(data + x, pred1); - } - data += width; - ++y_start; - } - - { - int y = y_start; - const int tile_width = 1 << transform->bits_; - const int mask = tile_width - 1; - const int safe_width = width & ~mask; - const int tiles_per_row = VP8LSubSampleSize(width, transform->bits_); - const uint32_t* pred_mode_base = - transform->data_ + (y >> transform->bits_) * tiles_per_row; - - while (y < y_end) { - const uint32_t pred2 = Predictor2(data[-1], data - width); - const uint32_t* pred_mode_src = pred_mode_base; - VP8LPredictorFunc pred_func; - int x = 1; - int t = 1; - // First pixel follows the T (mode=2) mode. - AddPixelsEq(data, pred2); - // .. the rest: - while (x < safe_width) { - pred_func = VP8LPredictors[((*pred_mode_src++) >> 8) & 0xf]; - for (; t < tile_width; ++t, ++x) { - const uint32_t pred = pred_func(data[x - 1], data + x - width); - AddPixelsEq(data + x, pred); - } - t = 0; - } - if (x < width) { - pred_func = VP8LPredictors[((*pred_mode_src++) >> 8) & 0xf]; - for (; x < width; ++x) { - const uint32_t pred = pred_func(data[x - 1], data + x - width); - AddPixelsEq(data + x, pred); - } - } - data += width; - ++y; - if ((y & mask) == 0) { // Use the same mask, since tiles are squares. - pred_mode_base += tiles_per_row; - } - } - } -} - -// Add green to blue and red channels (i.e. perform the inverse transform of -// 'subtract green'). -void VP8LAddGreenToBlueAndRed_C(uint32_t* data, int num_pixels) { - int i; - for (i = 0; i < num_pixels; ++i) { - const uint32_t argb = data[i]; - const uint32_t green = ((argb >> 8) & 0xff); - uint32_t red_blue = (argb & 0x00ff00ffu); - red_blue += (green << 16) | green; - red_blue &= 0x00ff00ffu; - data[i] = (argb & 0xff00ff00u) | red_blue; - } -} - -static WEBP_INLINE uint32_t ColorTransformDelta(int8_t color_pred, - int8_t color) { - return (uint32_t)((int)(color_pred) * color) >> 5; -} - -static WEBP_INLINE void ColorCodeToMultipliers(uint32_t color_code, - VP8LMultipliers* const m) { - m->green_to_red_ = (color_code >> 0) & 0xff; - m->green_to_blue_ = (color_code >> 8) & 0xff; - m->red_to_blue_ = (color_code >> 16) & 0xff; -} - -void VP8LTransformColorInverse_C(const VP8LMultipliers* const m, uint32_t* data, - int num_pixels) { - int i; - for (i = 0; i < num_pixels; ++i) { - const uint32_t argb = data[i]; - const uint32_t green = argb >> 8; - const uint32_t red = argb >> 16; - uint32_t new_red = red; - uint32_t new_blue = argb; - new_red += ColorTransformDelta(m->green_to_red_, green); - new_red &= 0xff; - new_blue += ColorTransformDelta(m->green_to_blue_, green); - new_blue += ColorTransformDelta(m->red_to_blue_, new_red); - new_blue &= 0xff; - data[i] = (argb & 0xff00ff00u) | (new_red << 16) | (new_blue); - } -} - -// Color space inverse transform. -static void ColorSpaceInverseTransform(const VP8LTransform* const transform, - int y_start, int y_end, uint32_t* data) { - const int width = transform->xsize_; - const int tile_width = 1 << transform->bits_; - const int mask = tile_width - 1; - const int safe_width = width & ~mask; - const int remaining_width = width - safe_width; - const int tiles_per_row = VP8LSubSampleSize(width, transform->bits_); - int y = y_start; - const uint32_t* pred_row = - transform->data_ + (y >> transform->bits_) * tiles_per_row; - - while (y < y_end) { - const uint32_t* pred = pred_row; - VP8LMultipliers m = { 0, 0, 0 }; - const uint32_t* const data_safe_end = data + safe_width; - const uint32_t* const data_end = data + width; - while (data < data_safe_end) { - ColorCodeToMultipliers(*pred++, &m); - VP8LTransformColorInverse(&m, data, tile_width); - data += tile_width; - } - if (data < data_end) { // Left-overs using C-version. - ColorCodeToMultipliers(*pred++, &m); - VP8LTransformColorInverse(&m, data, remaining_width); - data += remaining_width; - } - ++y; - if ((y & mask) == 0) pred_row += tiles_per_row; - } -} - -// Separate out pixels packed together using pixel-bundling. -// We define two methods for ARGB data (uint32_t) and alpha-only data (uint8_t). -#define COLOR_INDEX_INVERSE(FUNC_NAME, F_NAME, STATIC_DECL, TYPE, BIT_SUFFIX, \ - GET_INDEX, GET_VALUE) \ -static void F_NAME(const TYPE* src, const uint32_t* const color_map, \ - TYPE* dst, int y_start, int y_end, int width) { \ - int y; \ - for (y = y_start; y < y_end; ++y) { \ - int x; \ - for (x = 0; x < width; ++x) { \ - *dst++ = GET_VALUE(color_map[GET_INDEX(*src++)]); \ - } \ - } \ -} \ -STATIC_DECL void FUNC_NAME(const VP8LTransform* const transform, \ - int y_start, int y_end, const TYPE* src, \ - TYPE* dst) { \ - int y; \ - const int bits_per_pixel = 8 >> transform->bits_; \ - const int width = transform->xsize_; \ - const uint32_t* const color_map = transform->data_; \ - if (bits_per_pixel < 8) { \ - const int pixels_per_byte = 1 << transform->bits_; \ - const int count_mask = pixels_per_byte - 1; \ - const uint32_t bit_mask = (1 << bits_per_pixel) - 1; \ - for (y = y_start; y < y_end; ++y) { \ - uint32_t packed_pixels = 0; \ - int x; \ - for (x = 0; x < width; ++x) { \ - /* We need to load fresh 'packed_pixels' once every */ \ - /* 'pixels_per_byte' increments of x. Fortunately, pixels_per_byte */ \ - /* is a power of 2, so can just use a mask for that, instead of */ \ - /* decrementing a counter. */ \ - if ((x & count_mask) == 0) packed_pixels = GET_INDEX(*src++); \ - *dst++ = GET_VALUE(color_map[packed_pixels & bit_mask]); \ - packed_pixels >>= bits_per_pixel; \ - } \ - } \ - } else { \ - VP8LMapColor##BIT_SUFFIX(src, color_map, dst, y_start, y_end, width); \ - } \ -} - -COLOR_INDEX_INVERSE(ColorIndexInverseTransform, MapARGB, static, uint32_t, 32b, - VP8GetARGBIndex, VP8GetARGBValue) -COLOR_INDEX_INVERSE(VP8LColorIndexInverseTransformAlpha, MapAlpha, , uint8_t, - 8b, VP8GetAlphaIndex, VP8GetAlphaValue) - -#undef COLOR_INDEX_INVERSE - -void VP8LInverseTransform(const VP8LTransform* const transform, - int row_start, int row_end, - const uint32_t* const in, uint32_t* const out) { - const int width = transform->xsize_; - assert(row_start < row_end); - assert(row_end <= transform->ysize_); - switch (transform->type_) { - case SUBTRACT_GREEN: - VP8LAddGreenToBlueAndRed(out, (row_end - row_start) * width); - break; - case PREDICTOR_TRANSFORM: - PredictorInverseTransform(transform, row_start, row_end, out); - if (row_end != transform->ysize_) { - // The last predicted row in this iteration will be the top-pred row - // for the first row in next iteration. - memcpy(out - width, out + (row_end - row_start - 1) * width, - width * sizeof(*out)); - } - break; - case CROSS_COLOR_TRANSFORM: - ColorSpaceInverseTransform(transform, row_start, row_end, out); - break; - case COLOR_INDEXING_TRANSFORM: - if (in == out && transform->bits_ > 0) { - // Move packed pixels to the end of unpacked region, so that unpacking - // can occur seamlessly. - // Also, note that this is the only transform that applies on - // the effective width of VP8LSubSampleSize(xsize_, bits_). All other - // transforms work on effective width of xsize_. - const int out_stride = (row_end - row_start) * width; - const int in_stride = (row_end - row_start) * - VP8LSubSampleSize(transform->xsize_, transform->bits_); - uint32_t* const src = out + out_stride - in_stride; - memmove(src, out, in_stride * sizeof(*src)); - ColorIndexInverseTransform(transform, row_start, row_end, src, out); - } else { - ColorIndexInverseTransform(transform, row_start, row_end, in, out); - } - break; - } -} - -//------------------------------------------------------------------------------ -// Color space conversion. - -static int is_big_endian(void) { - static const union { - uint16_t w; - uint8_t b[2]; - } tmp = { 1 }; - return (tmp.b[0] != 1); -} - -void VP8LConvertBGRAToRGB_C(const uint32_t* src, - int num_pixels, uint8_t* dst) { - const uint32_t* const src_end = src + num_pixels; - while (src < src_end) { - const uint32_t argb = *src++; - *dst++ = (argb >> 16) & 0xff; - *dst++ = (argb >> 8) & 0xff; - *dst++ = (argb >> 0) & 0xff; - } -} - -void VP8LConvertBGRAToRGBA_C(const uint32_t* src, - int num_pixels, uint8_t* dst) { - const uint32_t* const src_end = src + num_pixels; - while (src < src_end) { - const uint32_t argb = *src++; - *dst++ = (argb >> 16) & 0xff; - *dst++ = (argb >> 8) & 0xff; - *dst++ = (argb >> 0) & 0xff; - *dst++ = (argb >> 24) & 0xff; - } -} - -void VP8LConvertBGRAToRGBA4444_C(const uint32_t* src, - int num_pixels, uint8_t* dst) { - const uint32_t* const src_end = src + num_pixels; - while (src < src_end) { - const uint32_t argb = *src++; - const uint8_t rg = ((argb >> 16) & 0xf0) | ((argb >> 12) & 0xf); - const uint8_t ba = ((argb >> 0) & 0xf0) | ((argb >> 28) & 0xf); -#ifdef WEBP_SWAP_16BIT_CSP - *dst++ = ba; - *dst++ = rg; -#else - *dst++ = rg; - *dst++ = ba; -#endif - } -} - -void VP8LConvertBGRAToRGB565_C(const uint32_t* src, - int num_pixels, uint8_t* dst) { - const uint32_t* const src_end = src + num_pixels; - while (src < src_end) { - const uint32_t argb = *src++; - const uint8_t rg = ((argb >> 16) & 0xf8) | ((argb >> 13) & 0x7); - const uint8_t gb = ((argb >> 5) & 0xe0) | ((argb >> 3) & 0x1f); -#ifdef WEBP_SWAP_16BIT_CSP - *dst++ = gb; - *dst++ = rg; -#else - *dst++ = rg; - *dst++ = gb; -#endif - } -} - -void VP8LConvertBGRAToBGR_C(const uint32_t* src, - int num_pixels, uint8_t* dst) { - const uint32_t* const src_end = src + num_pixels; - while (src < src_end) { - const uint32_t argb = *src++; - *dst++ = (argb >> 0) & 0xff; - *dst++ = (argb >> 8) & 0xff; - *dst++ = (argb >> 16) & 0xff; - } -} - -static void CopyOrSwap(const uint32_t* src, int num_pixels, uint8_t* dst, - int swap_on_big_endian) { - if (is_big_endian() == swap_on_big_endian) { - const uint32_t* const src_end = src + num_pixels; - while (src < src_end) { - const uint32_t argb = *src++; - -#if !defined(WORDS_BIGENDIAN) -#if !defined(WEBP_REFERENCE_IMPLEMENTATION) - WebPUint32ToMem(dst, BSwap32(argb)); -#else // WEBP_REFERENCE_IMPLEMENTATION - dst[0] = (argb >> 24) & 0xff; - dst[1] = (argb >> 16) & 0xff; - dst[2] = (argb >> 8) & 0xff; - dst[3] = (argb >> 0) & 0xff; -#endif -#else // WORDS_BIGENDIAN - dst[0] = (argb >> 0) & 0xff; - dst[1] = (argb >> 8) & 0xff; - dst[2] = (argb >> 16) & 0xff; - dst[3] = (argb >> 24) & 0xff; -#endif - dst += sizeof(argb); - } - } else { - memcpy(dst, src, num_pixels * sizeof(*src)); - } -} - -void VP8LConvertFromBGRA(const uint32_t* const in_data, int num_pixels, - WEBP_CSP_MODE out_colorspace, uint8_t* const rgba) { - switch (out_colorspace) { - case MODE_RGB: - VP8LConvertBGRAToRGB(in_data, num_pixels, rgba); - break; - case MODE_RGBA: - VP8LConvertBGRAToRGBA(in_data, num_pixels, rgba); - break; - case MODE_rgbA: - VP8LConvertBGRAToRGBA(in_data, num_pixels, rgba); - WebPApplyAlphaMultiply(rgba, 0, num_pixels, 1, 0); - break; - case MODE_BGR: - VP8LConvertBGRAToBGR(in_data, num_pixels, rgba); - break; - case MODE_BGRA: - CopyOrSwap(in_data, num_pixels, rgba, 1); - break; - case MODE_bgrA: - CopyOrSwap(in_data, num_pixels, rgba, 1); - WebPApplyAlphaMultiply(rgba, 0, num_pixels, 1, 0); - break; - case MODE_ARGB: - CopyOrSwap(in_data, num_pixels, rgba, 0); - break; - case MODE_Argb: - CopyOrSwap(in_data, num_pixels, rgba, 0); - WebPApplyAlphaMultiply(rgba, 1, num_pixels, 1, 0); - break; - case MODE_RGBA_4444: - VP8LConvertBGRAToRGBA4444(in_data, num_pixels, rgba); - break; - case MODE_rgbA_4444: - VP8LConvertBGRAToRGBA4444(in_data, num_pixels, rgba); - WebPApplyAlphaMultiply4444(rgba, num_pixels, 1, 0); - break; - case MODE_RGB_565: - VP8LConvertBGRAToRGB565(in_data, num_pixels, rgba); - break; - default: - assert(0); // Code flow should not reach here. - } -} - -//------------------------------------------------------------------------------ - -VP8LProcessBlueAndRedFunc VP8LAddGreenToBlueAndRed; -VP8LPredictorFunc VP8LPredictors[16]; - -VP8LTransformColorFunc VP8LTransformColorInverse; - -VP8LConvertFunc VP8LConvertBGRAToRGB; -VP8LConvertFunc VP8LConvertBGRAToRGBA; -VP8LConvertFunc VP8LConvertBGRAToRGBA4444; -VP8LConvertFunc VP8LConvertBGRAToRGB565; -VP8LConvertFunc VP8LConvertBGRAToBGR; - -VP8LMapARGBFunc VP8LMapColor32b; -VP8LMapAlphaFunc VP8LMapColor8b; - -extern void VP8LDspInitSSE2(void); -extern void VP8LDspInitNEON(void); -extern void VP8LDspInitMIPSdspR2(void); - -static volatile VP8CPUInfo lossless_last_cpuinfo_used = - (VP8CPUInfo)&lossless_last_cpuinfo_used; - -WEBP_TSAN_IGNORE_FUNCTION void VP8LDspInit(void) { - if (lossless_last_cpuinfo_used == VP8GetCPUInfo) return; - - VP8LPredictors[0] = Predictor0; - VP8LPredictors[1] = Predictor1; - VP8LPredictors[2] = Predictor2; - VP8LPredictors[3] = Predictor3; - VP8LPredictors[4] = Predictor4; - VP8LPredictors[5] = Predictor5; - VP8LPredictors[6] = Predictor6; - VP8LPredictors[7] = Predictor7; - VP8LPredictors[8] = Predictor8; - VP8LPredictors[9] = Predictor9; - VP8LPredictors[10] = Predictor10; - VP8LPredictors[11] = Predictor11; - VP8LPredictors[12] = Predictor12; - VP8LPredictors[13] = Predictor13; - VP8LPredictors[14] = Predictor0; // <- padding security sentinels - VP8LPredictors[15] = Predictor0; - - VP8LAddGreenToBlueAndRed = VP8LAddGreenToBlueAndRed_C; - - VP8LTransformColorInverse = VP8LTransformColorInverse_C; - - VP8LConvertBGRAToRGB = VP8LConvertBGRAToRGB_C; - VP8LConvertBGRAToRGBA = VP8LConvertBGRAToRGBA_C; - VP8LConvertBGRAToRGBA4444 = VP8LConvertBGRAToRGBA4444_C; - VP8LConvertBGRAToRGB565 = VP8LConvertBGRAToRGB565_C; - VP8LConvertBGRAToBGR = VP8LConvertBGRAToBGR_C; - - VP8LMapColor32b = MapARGB; - VP8LMapColor8b = MapAlpha; - - // If defined, use CPUInfo() to overwrite some pointers with faster versions. - if (VP8GetCPUInfo != NULL) { -#if defined(WEBP_USE_SSE2) - if (VP8GetCPUInfo(kSSE2)) { - VP8LDspInitSSE2(); - } -#endif -#if defined(WEBP_USE_NEON) - if (VP8GetCPUInfo(kNEON)) { - VP8LDspInitNEON(); - } -#endif -#if defined(WEBP_USE_MIPS_DSP_R2) - if (VP8GetCPUInfo(kMIPSdspR2)) { - VP8LDspInitMIPSdspR2(); - } -#endif - } - lossless_last_cpuinfo_used = VP8GetCPUInfo; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/dsp/lossless.h b/drivers/webp/dsp/lossless.h deleted file mode 100644 index 7709b4fe85..0000000000 --- a/drivers/webp/dsp/lossless.h +++ /dev/null @@ -1,372 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Image transforms and color space conversion methods for lossless decoder. -// -// Authors: Vikas Arora (vikaas.arora@gmail.com) -// Jyrki Alakuijala (jyrki@google.com) - -#ifndef WEBP_DSP_LOSSLESS_H_ -#define WEBP_DSP_LOSSLESS_H_ - -#include "webp/types.h" -#include "webp/decode.h" - -#include "../enc/histogram.h" -#include "../utils/utils.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#ifdef WEBP_EXPERIMENTAL_FEATURES -#include "../enc/delta_palettization.h" -#endif // WEBP_EXPERIMENTAL_FEATURES - -//------------------------------------------------------------------------------ -// Decoding - -typedef uint32_t (*VP8LPredictorFunc)(uint32_t left, const uint32_t* const top); -extern VP8LPredictorFunc VP8LPredictors[16]; - -typedef void (*VP8LProcessBlueAndRedFunc)(uint32_t* argb_data, int num_pixels); -extern VP8LProcessBlueAndRedFunc VP8LAddGreenToBlueAndRed; - -typedef struct { - // Note: the members are uint8_t, so that any negative values are - // automatically converted to "mod 256" values. - uint8_t green_to_red_; - uint8_t green_to_blue_; - uint8_t red_to_blue_; -} VP8LMultipliers; -typedef void (*VP8LTransformColorFunc)(const VP8LMultipliers* const m, - uint32_t* argb_data, int num_pixels); -extern VP8LTransformColorFunc VP8LTransformColorInverse; - -struct VP8LTransform; // Defined in dec/vp8li.h. - -// Performs inverse transform of data given transform information, start and end -// rows. Transform will be applied to rows [row_start, row_end[. -// The *in and *out pointers refer to source and destination data respectively -// corresponding to the intermediate row (row_start). -void VP8LInverseTransform(const struct VP8LTransform* const transform, - int row_start, int row_end, - const uint32_t* const in, uint32_t* const out); - -// Color space conversion. -typedef void (*VP8LConvertFunc)(const uint32_t* src, int num_pixels, - uint8_t* dst); -extern VP8LConvertFunc VP8LConvertBGRAToRGB; -extern VP8LConvertFunc VP8LConvertBGRAToRGBA; -extern VP8LConvertFunc VP8LConvertBGRAToRGBA4444; -extern VP8LConvertFunc VP8LConvertBGRAToRGB565; -extern VP8LConvertFunc VP8LConvertBGRAToBGR; - -// Converts from BGRA to other color spaces. -void VP8LConvertFromBGRA(const uint32_t* const in_data, int num_pixels, - WEBP_CSP_MODE out_colorspace, uint8_t* const rgba); - -// color mapping related functions. -static WEBP_INLINE uint32_t VP8GetARGBIndex(uint32_t idx) { - return (idx >> 8) & 0xff; -} - -static WEBP_INLINE uint8_t VP8GetAlphaIndex(uint8_t idx) { - return idx; -} - -static WEBP_INLINE uint32_t VP8GetARGBValue(uint32_t val) { - return val; -} - -static WEBP_INLINE uint8_t VP8GetAlphaValue(uint32_t val) { - return (val >> 8) & 0xff; -} - -typedef void (*VP8LMapARGBFunc)(const uint32_t* src, - const uint32_t* const color_map, - uint32_t* dst, int y_start, - int y_end, int width); -typedef void (*VP8LMapAlphaFunc)(const uint8_t* src, - const uint32_t* const color_map, - uint8_t* dst, int y_start, - int y_end, int width); - -extern VP8LMapARGBFunc VP8LMapColor32b; -extern VP8LMapAlphaFunc VP8LMapColor8b; - -// Similar to the static method ColorIndexInverseTransform() that is part of -// lossless.c, but used only for alpha decoding. It takes uint8_t (rather than -// uint32_t) arguments for 'src' and 'dst'. -void VP8LColorIndexInverseTransformAlpha( - const struct VP8LTransform* const transform, int y_start, int y_end, - const uint8_t* src, uint8_t* dst); - -// Expose some C-only fallback functions -void VP8LTransformColorInverse_C(const VP8LMultipliers* const m, - uint32_t* data, int num_pixels); - -void VP8LConvertBGRAToRGB_C(const uint32_t* src, int num_pixels, uint8_t* dst); -void VP8LConvertBGRAToRGBA_C(const uint32_t* src, int num_pixels, uint8_t* dst); -void VP8LConvertBGRAToRGBA4444_C(const uint32_t* src, - int num_pixels, uint8_t* dst); -void VP8LConvertBGRAToRGB565_C(const uint32_t* src, - int num_pixels, uint8_t* dst); -void VP8LConvertBGRAToBGR_C(const uint32_t* src, int num_pixels, uint8_t* dst); -void VP8LAddGreenToBlueAndRed_C(uint32_t* data, int num_pixels); - -// Must be called before calling any of the above methods. -void VP8LDspInit(void); - -//------------------------------------------------------------------------------ -// Encoding - -extern VP8LProcessBlueAndRedFunc VP8LSubtractGreenFromBlueAndRed; -extern VP8LTransformColorFunc VP8LTransformColor; -typedef void (*VP8LCollectColorBlueTransformsFunc)( - const uint32_t* argb, int stride, - int tile_width, int tile_height, - int green_to_blue, int red_to_blue, int histo[]); -extern VP8LCollectColorBlueTransformsFunc VP8LCollectColorBlueTransforms; - -typedef void (*VP8LCollectColorRedTransformsFunc)( - const uint32_t* argb, int stride, - int tile_width, int tile_height, - int green_to_red, int histo[]); -extern VP8LCollectColorRedTransformsFunc VP8LCollectColorRedTransforms; - -// Expose some C-only fallback functions -void VP8LTransformColor_C(const VP8LMultipliers* const m, - uint32_t* data, int num_pixels); -void VP8LSubtractGreenFromBlueAndRed_C(uint32_t* argb_data, int num_pixels); -void VP8LCollectColorRedTransforms_C(const uint32_t* argb, int stride, - int tile_width, int tile_height, - int green_to_red, int histo[]); -void VP8LCollectColorBlueTransforms_C(const uint32_t* argb, int stride, - int tile_width, int tile_height, - int green_to_blue, int red_to_blue, - int histo[]); - -//------------------------------------------------------------------------------ -// Image transforms. - -void VP8LResidualImage(int width, int height, int bits, int low_effort, - uint32_t* const argb, uint32_t* const argb_scratch, - uint32_t* const image, int near_lossless, int exact, - int used_subtract_green); - -void VP8LColorSpaceTransform(int width, int height, int bits, int quality, - uint32_t* const argb, uint32_t* image); - -//------------------------------------------------------------------------------ -// Misc methods. - -// Computes sampled size of 'size' when sampling using 'sampling bits'. -static WEBP_INLINE uint32_t VP8LSubSampleSize(uint32_t size, - uint32_t sampling_bits) { - return (size + (1 << sampling_bits) - 1) >> sampling_bits; -} - -// Converts near lossless quality into max number of bits shaved off. -static WEBP_INLINE int VP8LNearLosslessBits(int near_lossless_quality) { - // 100 -> 0 - // 80..99 -> 1 - // 60..79 -> 2 - // 40..59 -> 3 - // 20..39 -> 4 - // 0..19 -> 5 - return 5 - near_lossless_quality / 20; -} - -// ----------------------------------------------------------------------------- -// Faster logarithm for integers. Small values use a look-up table. - -// The threshold till approximate version of log_2 can be used. -// Practically, we can get rid of the call to log() as the two values match to -// very high degree (the ratio of these two is 0.99999x). -// Keeping a high threshold for now. -#define APPROX_LOG_WITH_CORRECTION_MAX 65536 -#define APPROX_LOG_MAX 4096 -#define LOG_2_RECIPROCAL 1.44269504088896338700465094007086 -#define LOG_LOOKUP_IDX_MAX 256 -extern const float kLog2Table[LOG_LOOKUP_IDX_MAX]; -extern const float kSLog2Table[LOG_LOOKUP_IDX_MAX]; -typedef float (*VP8LFastLog2SlowFunc)(uint32_t v); - -extern VP8LFastLog2SlowFunc VP8LFastLog2Slow; -extern VP8LFastLog2SlowFunc VP8LFastSLog2Slow; - -static WEBP_INLINE float VP8LFastLog2(uint32_t v) { - return (v < LOG_LOOKUP_IDX_MAX) ? kLog2Table[v] : VP8LFastLog2Slow(v); -} -// Fast calculation of v * log2(v) for integer input. -static WEBP_INLINE float VP8LFastSLog2(uint32_t v) { - return (v < LOG_LOOKUP_IDX_MAX) ? kSLog2Table[v] : VP8LFastSLog2Slow(v); -} - -// ----------------------------------------------------------------------------- -// Huffman-cost related functions. - -typedef double (*VP8LCostFunc)(const uint32_t* population, int length); -typedef double (*VP8LCostCombinedFunc)(const uint32_t* X, const uint32_t* Y, - int length); -typedef float (*VP8LCombinedShannonEntropyFunc)(const int X[256], - const int Y[256]); - -extern VP8LCostFunc VP8LExtraCost; -extern VP8LCostCombinedFunc VP8LExtraCostCombined; -extern VP8LCombinedShannonEntropyFunc VP8LCombinedShannonEntropy; - -typedef struct { // small struct to hold counters - int counts[2]; // index: 0=zero steak, 1=non-zero streak - int streaks[2][2]; // [zero/non-zero][streak<3 / streak>=3] -} VP8LStreaks; - -typedef VP8LStreaks (*VP8LCostCombinedCountFunc)(const uint32_t* X, - const uint32_t* Y, int length); - -extern VP8LCostCombinedCountFunc VP8LHuffmanCostCombinedCount; - -typedef struct { // small struct to hold bit entropy results - double entropy; // entropy - uint32_t sum; // sum of the population - int nonzeros; // number of non-zero elements in the population - uint32_t max_val; // maximum value in the population - uint32_t nonzero_code; // index of the last non-zero in the population -} VP8LBitEntropy; - -void VP8LBitEntropyInit(VP8LBitEntropy* const entropy); - -// Get the combined symbol bit entropy and Huffman cost stats for the -// distributions 'X' and 'Y'. Those results can then be refined according to -// codec specific heuristics. -void VP8LGetCombinedEntropyUnrefined(const uint32_t* const X, - const uint32_t* const Y, int length, - VP8LBitEntropy* const bit_entropy, - VP8LStreaks* const stats); -// Get the entropy for the distribution 'X'. -void VP8LGetEntropyUnrefined(const uint32_t* const X, int length, - VP8LBitEntropy* const bit_entropy, - VP8LStreaks* const stats); - -void VP8LBitsEntropyUnrefined(const uint32_t* const array, int n, - VP8LBitEntropy* const entropy); - -typedef void (*GetEntropyUnrefinedHelperFunc)(uint32_t val, int i, - uint32_t* const val_prev, - int* const i_prev, - VP8LBitEntropy* const bit_entropy, - VP8LStreaks* const stats); -// Internal function used by VP8LGet*EntropyUnrefined. -extern GetEntropyUnrefinedHelperFunc VP8LGetEntropyUnrefinedHelper; - -typedef void (*VP8LHistogramAddFunc)(const VP8LHistogram* const a, - const VP8LHistogram* const b, - VP8LHistogram* const out); -extern VP8LHistogramAddFunc VP8LHistogramAdd; - -// ----------------------------------------------------------------------------- -// PrefixEncode() - -typedef int (*VP8LVectorMismatchFunc)(const uint32_t* const array1, - const uint32_t* const array2, int length); -// Returns the first index where array1 and array2 are different. -extern VP8LVectorMismatchFunc VP8LVectorMismatch; - -static WEBP_INLINE int VP8LBitsLog2Ceiling(uint32_t n) { - const int log_floor = BitsLog2Floor(n); - if (n == (n & ~(n - 1))) // zero or a power of two. - return log_floor; - else - return log_floor + 1; -} - -// Splitting of distance and length codes into prefixes and -// extra bits. The prefixes are encoded with an entropy code -// while the extra bits are stored just as normal bits. -static WEBP_INLINE void VP8LPrefixEncodeBitsNoLUT(int distance, int* const code, - int* const extra_bits) { - const int highest_bit = BitsLog2Floor(--distance); - const int second_highest_bit = (distance >> (highest_bit - 1)) & 1; - *extra_bits = highest_bit - 1; - *code = 2 * highest_bit + second_highest_bit; -} - -static WEBP_INLINE void VP8LPrefixEncodeNoLUT(int distance, int* const code, - int* const extra_bits, - int* const extra_bits_value) { - const int highest_bit = BitsLog2Floor(--distance); - const int second_highest_bit = (distance >> (highest_bit - 1)) & 1; - *extra_bits = highest_bit - 1; - *extra_bits_value = distance & ((1 << *extra_bits) - 1); - *code = 2 * highest_bit + second_highest_bit; -} - -#define PREFIX_LOOKUP_IDX_MAX 512 -typedef struct { - int8_t code_; - int8_t extra_bits_; -} VP8LPrefixCode; - -// These tables are derived using VP8LPrefixEncodeNoLUT. -extern const VP8LPrefixCode kPrefixEncodeCode[PREFIX_LOOKUP_IDX_MAX]; -extern const uint8_t kPrefixEncodeExtraBitsValue[PREFIX_LOOKUP_IDX_MAX]; -static WEBP_INLINE void VP8LPrefixEncodeBits(int distance, int* const code, - int* const extra_bits) { - if (distance < PREFIX_LOOKUP_IDX_MAX) { - const VP8LPrefixCode prefix_code = kPrefixEncodeCode[distance]; - *code = prefix_code.code_; - *extra_bits = prefix_code.extra_bits_; - } else { - VP8LPrefixEncodeBitsNoLUT(distance, code, extra_bits); - } -} - -static WEBP_INLINE void VP8LPrefixEncode(int distance, int* const code, - int* const extra_bits, - int* const extra_bits_value) { - if (distance < PREFIX_LOOKUP_IDX_MAX) { - const VP8LPrefixCode prefix_code = kPrefixEncodeCode[distance]; - *code = prefix_code.code_; - *extra_bits = prefix_code.extra_bits_; - *extra_bits_value = kPrefixEncodeExtraBitsValue[distance]; - } else { - VP8LPrefixEncodeNoLUT(distance, code, extra_bits, extra_bits_value); - } -} - -// Sum of each component, mod 256. -static WEBP_INLINE uint32_t VP8LAddPixels(uint32_t a, uint32_t b) { - const uint32_t alpha_and_green = (a & 0xff00ff00u) + (b & 0xff00ff00u); - const uint32_t red_and_blue = (a & 0x00ff00ffu) + (b & 0x00ff00ffu); - return (alpha_and_green & 0xff00ff00u) | (red_and_blue & 0x00ff00ffu); -} - -// Difference of each component, mod 256. -static WEBP_INLINE uint32_t VP8LSubPixels(uint32_t a, uint32_t b) { - const uint32_t alpha_and_green = - 0x00ff00ffu + (a & 0xff00ff00u) - (b & 0xff00ff00u); - const uint32_t red_and_blue = - 0xff00ff00u + (a & 0x00ff00ffu) - (b & 0x00ff00ffu); - return (alpha_and_green & 0xff00ff00u) | (red_and_blue & 0x00ff00ffu); -} - -void VP8LBundleColorMap(const uint8_t* const row, int width, - int xbits, uint32_t* const dst); - -// Must be called before calling any of the above methods. -void VP8LEncDspInit(void); - -//------------------------------------------------------------------------------ - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif // WEBP_DSP_LOSSLESS_H_ diff --git a/drivers/webp/dsp/lossless_enc.c b/drivers/webp/dsp/lossless_enc.c deleted file mode 100644 index 256f6f5f8b..0000000000 --- a/drivers/webp/dsp/lossless_enc.c +++ /dev/null @@ -1,1439 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Image transform methods for lossless encoder. -// -// Authors: Vikas Arora (vikaas.arora@gmail.com) -// Jyrki Alakuijala (jyrki@google.com) -// Urvang Joshi (urvang@google.com) - -#include "./dsp.h" - -#include <math.h> -#include <stdlib.h> -#include "../dec/vp8li.h" -#include "../utils/endian_inl.h" -#include "./lossless.h" -#include "./yuv.h" - -#define MAX_DIFF_COST (1e30f) - -static const int kPredLowEffort = 11; -static const uint32_t kMaskAlpha = 0xff000000; - -// lookup table for small values of log2(int) -const float kLog2Table[LOG_LOOKUP_IDX_MAX] = { - 0.0000000000000000f, 0.0000000000000000f, - 1.0000000000000000f, 1.5849625007211560f, - 2.0000000000000000f, 2.3219280948873621f, - 2.5849625007211560f, 2.8073549220576041f, - 3.0000000000000000f, 3.1699250014423121f, - 3.3219280948873621f, 3.4594316186372973f, - 3.5849625007211560f, 3.7004397181410921f, - 3.8073549220576041f, 3.9068905956085187f, - 4.0000000000000000f, 4.0874628412503390f, - 4.1699250014423121f, 4.2479275134435852f, - 4.3219280948873626f, 4.3923174227787606f, - 4.4594316186372973f, 4.5235619560570130f, - 4.5849625007211560f, 4.6438561897747243f, - 4.7004397181410917f, 4.7548875021634682f, - 4.8073549220576037f, 4.8579809951275718f, - 4.9068905956085187f, 4.9541963103868749f, - 5.0000000000000000f, 5.0443941193584533f, - 5.0874628412503390f, 5.1292830169449663f, - 5.1699250014423121f, 5.2094533656289501f, - 5.2479275134435852f, 5.2854022188622487f, - 5.3219280948873626f, 5.3575520046180837f, - 5.3923174227787606f, 5.4262647547020979f, - 5.4594316186372973f, 5.4918530963296747f, - 5.5235619560570130f, 5.5545888516776376f, - 5.5849625007211560f, 5.6147098441152083f, - 5.6438561897747243f, 5.6724253419714951f, - 5.7004397181410917f, 5.7279204545631987f, - 5.7548875021634682f, 5.7813597135246599f, - 5.8073549220576037f, 5.8328900141647412f, - 5.8579809951275718f, 5.8826430493618415f, - 5.9068905956085187f, 5.9307373375628866f, - 5.9541963103868749f, 5.9772799234999167f, - 6.0000000000000000f, 6.0223678130284543f, - 6.0443941193584533f, 6.0660891904577720f, - 6.0874628412503390f, 6.1085244567781691f, - 6.1292830169449663f, 6.1497471195046822f, - 6.1699250014423121f, 6.1898245588800175f, - 6.2094533656289501f, 6.2288186904958804f, - 6.2479275134435852f, 6.2667865406949010f, - 6.2854022188622487f, 6.3037807481771030f, - 6.3219280948873626f, 6.3398500028846243f, - 6.3575520046180837f, 6.3750394313469245f, - 6.3923174227787606f, 6.4093909361377017f, - 6.4262647547020979f, 6.4429434958487279f, - 6.4594316186372973f, 6.4757334309663976f, - 6.4918530963296747f, 6.5077946401986963f, - 6.5235619560570130f, 6.5391588111080309f, - 6.5545888516776376f, 6.5698556083309478f, - 6.5849625007211560f, 6.5999128421871278f, - 6.6147098441152083f, 6.6293566200796094f, - 6.6438561897747243f, 6.6582114827517946f, - 6.6724253419714951f, 6.6865005271832185f, - 6.7004397181410917f, 6.7142455176661224f, - 6.7279204545631987f, 6.7414669864011464f, - 6.7548875021634682f, 6.7681843247769259f, - 6.7813597135246599f, 6.7944158663501061f, - 6.8073549220576037f, 6.8201789624151878f, - 6.8328900141647412f, 6.8454900509443747f, - 6.8579809951275718f, 6.8703647195834047f, - 6.8826430493618415f, 6.8948177633079437f, - 6.9068905956085187f, 6.9188632372745946f, - 6.9307373375628866f, 6.9425145053392398f, - 6.9541963103868749f, 6.9657842846620869f, - 6.9772799234999167f, 6.9886846867721654f, - 7.0000000000000000f, 7.0112272554232539f, - 7.0223678130284543f, 7.0334230015374501f, - 7.0443941193584533f, 7.0552824355011898f, - 7.0660891904577720f, 7.0768155970508308f, - 7.0874628412503390f, 7.0980320829605263f, - 7.1085244567781691f, 7.1189410727235076f, - 7.1292830169449663f, 7.1395513523987936f, - 7.1497471195046822f, 7.1598713367783890f, - 7.1699250014423121f, 7.1799090900149344f, - 7.1898245588800175f, 7.1996723448363644f, - 7.2094533656289501f, 7.2191685204621611f, - 7.2288186904958804f, 7.2384047393250785f, - 7.2479275134435852f, 7.2573878426926521f, - 7.2667865406949010f, 7.2761244052742375f, - 7.2854022188622487f, 7.2946207488916270f, - 7.3037807481771030f, 7.3128829552843557f, - 7.3219280948873626f, 7.3309168781146167f, - 7.3398500028846243f, 7.3487281542310771f, - 7.3575520046180837f, 7.3663222142458160f, - 7.3750394313469245f, 7.3837042924740519f, - 7.3923174227787606f, 7.4008794362821843f, - 7.4093909361377017f, 7.4178525148858982f, - 7.4262647547020979f, 7.4346282276367245f, - 7.4429434958487279f, 7.4512111118323289f, - 7.4594316186372973f, 7.4676055500829976f, - 7.4757334309663976f, 7.4838157772642563f, - 7.4918530963296747f, 7.4998458870832056f, - 7.5077946401986963f, 7.5156998382840427f, - 7.5235619560570130f, 7.5313814605163118f, - 7.5391588111080309f, 7.5468944598876364f, - 7.5545888516776376f, 7.5622424242210728f, - 7.5698556083309478f, 7.5774288280357486f, - 7.5849625007211560f, 7.5924570372680806f, - 7.5999128421871278f, 7.6073303137496104f, - 7.6147098441152083f, 7.6220518194563764f, - 7.6293566200796094f, 7.6366246205436487f, - 7.6438561897747243f, 7.6510516911789281f, - 7.6582114827517946f, 7.6653359171851764f, - 7.6724253419714951f, 7.6794800995054464f, - 7.6865005271832185f, 7.6934869574993252f, - 7.7004397181410917f, 7.7073591320808825f, - 7.7142455176661224f, 7.7210991887071855f, - 7.7279204545631987f, 7.7347096202258383f, - 7.7414669864011464f, 7.7481928495894605f, - 7.7548875021634682f, 7.7615512324444795f, - 7.7681843247769259f, 7.7747870596011736f, - 7.7813597135246599f, 7.7879025593914317f, - 7.7944158663501061f, 7.8008998999203047f, - 7.8073549220576037f, 7.8137811912170374f, - 7.8201789624151878f, 7.8265484872909150f, - 7.8328900141647412f, 7.8392037880969436f, - 7.8454900509443747f, 7.8517490414160571f, - 7.8579809951275718f, 7.8641861446542797f, - 7.8703647195834047f, 7.8765169465649993f, - 7.8826430493618415f, 7.8887432488982591f, - 7.8948177633079437f, 7.9008668079807486f, - 7.9068905956085187f, 7.9128893362299619f, - 7.9188632372745946f, 7.9248125036057812f, - 7.9307373375628866f, 7.9366379390025709f, - 7.9425145053392398f, 7.9483672315846778f, - 7.9541963103868749f, 7.9600019320680805f, - 7.9657842846620869f, 7.9715435539507719f, - 7.9772799234999167f, 7.9829935746943103f, - 7.9886846867721654f, 7.9943534368588577f -}; - -const float kSLog2Table[LOG_LOOKUP_IDX_MAX] = { - 0.00000000f, 0.00000000f, 2.00000000f, 4.75488750f, - 8.00000000f, 11.60964047f, 15.50977500f, 19.65148445f, - 24.00000000f, 28.52932501f, 33.21928095f, 38.05374781f, - 43.01955001f, 48.10571634f, 53.30296891f, 58.60335893f, - 64.00000000f, 69.48686830f, 75.05865003f, 80.71062276f, - 86.43856190f, 92.23866588f, 98.10749561f, 104.04192499f, - 110.03910002f, 116.09640474f, 122.21143267f, 128.38196256f, - 134.60593782f, 140.88144886f, 147.20671787f, 153.58008562f, - 160.00000000f, 166.46500594f, 172.97373660f, 179.52490559f, - 186.11730005f, 192.74977453f, 199.42124551f, 206.13068654f, - 212.87712380f, 219.65963219f, 226.47733176f, 233.32938445f, - 240.21499122f, 247.13338933f, 254.08384998f, 261.06567603f, - 268.07820003f, 275.12078236f, 282.19280949f, 289.29369244f, - 296.42286534f, 303.57978409f, 310.76392512f, 317.97478424f, - 325.21187564f, 332.47473081f, 339.76289772f, 347.07593991f, - 354.41343574f, 361.77497759f, 369.16017124f, 376.56863518f, - 384.00000000f, 391.45390785f, 398.93001188f, 406.42797576f, - 413.94747321f, 421.48818752f, 429.04981119f, 436.63204548f, - 444.23460010f, 451.85719280f, 459.49954906f, 467.16140179f, - 474.84249102f, 482.54256363f, 490.26137307f, 497.99867911f, - 505.75424759f, 513.52785023f, 521.31926438f, 529.12827280f, - 536.95466351f, 544.79822957f, 552.65876890f, 560.53608414f, - 568.42998244f, 576.34027536f, 584.26677867f, 592.20931226f, - 600.16769996f, 608.14176943f, 616.13135206f, 624.13628279f, - 632.15640007f, 640.19154569f, 648.24156472f, 656.30630539f, - 664.38561898f, 672.47935976f, 680.58738488f, 688.70955430f, - 696.84573069f, 704.99577935f, 713.15956818f, 721.33696754f, - 729.52785023f, 737.73209140f, 745.94956849f, 754.18016116f, - 762.42375127f, 770.68022275f, 778.94946161f, 787.23135586f, - 795.52579543f, 803.83267219f, 812.15187982f, 820.48331383f, - 828.82687147f, 837.18245171f, 845.54995518f, 853.92928416f, - 862.32034249f, 870.72303558f, 879.13727036f, 887.56295522f, - 896.00000000f, 904.44831595f, 912.90781569f, 921.37841320f, - 929.86002376f, 938.35256392f, 946.85595152f, 955.37010560f, - 963.89494641f, 972.43039537f, 980.97637504f, 989.53280911f, - 998.09962237f, 1006.67674069f, 1015.26409097f, 1023.86160116f, - 1032.46920021f, 1041.08681805f, 1049.71438560f, 1058.35183469f, - 1066.99909811f, 1075.65610955f, 1084.32280357f, 1092.99911564f, - 1101.68498204f, 1110.38033993f, 1119.08512727f, 1127.79928282f, - 1136.52274614f, 1145.25545758f, 1153.99735821f, 1162.74838989f, - 1171.50849518f, 1180.27761738f, 1189.05570047f, 1197.84268914f, - 1206.63852876f, 1215.44316535f, 1224.25654560f, 1233.07861684f, - 1241.90932703f, 1250.74862473f, 1259.59645914f, 1268.45278005f, - 1277.31753781f, 1286.19068338f, 1295.07216828f, 1303.96194457f, - 1312.85996488f, 1321.76618236f, 1330.68055071f, 1339.60302413f, - 1348.53355734f, 1357.47210556f, 1366.41862452f, 1375.37307041f, - 1384.33539991f, 1393.30557020f, 1402.28353887f, 1411.26926400f, - 1420.26270412f, 1429.26381818f, 1438.27256558f, 1447.28890615f, - 1456.31280014f, 1465.34420819f, 1474.38309138f, 1483.42941118f, - 1492.48312945f, 1501.54420843f, 1510.61261078f, 1519.68829949f, - 1528.77123795f, 1537.86138993f, 1546.95871952f, 1556.06319119f, - 1565.17476976f, 1574.29342040f, 1583.41910860f, 1592.55180020f, - 1601.69146137f, 1610.83805860f, 1619.99155871f, 1629.15192882f, - 1638.31913637f, 1647.49314911f, 1656.67393509f, 1665.86146266f, - 1675.05570047f, 1684.25661744f, 1693.46418280f, 1702.67836605f, - 1711.89913698f, 1721.12646563f, 1730.36032233f, 1739.60067768f, - 1748.84750254f, 1758.10076802f, 1767.36044551f, 1776.62650662f, - 1785.89892323f, 1795.17766747f, 1804.46271172f, 1813.75402857f, - 1823.05159087f, 1832.35537170f, 1841.66534438f, 1850.98148244f, - 1860.30375965f, 1869.63214999f, 1878.96662767f, 1888.30716711f, - 1897.65374295f, 1907.00633003f, 1916.36490342f, 1925.72943838f, - 1935.09991037f, 1944.47629506f, 1953.85856831f, 1963.24670620f, - 1972.64068498f, 1982.04048108f, 1991.44607117f, 2000.85743204f, - 2010.27454072f, 2019.69737440f, 2029.12591044f, 2038.56012640f -}; - -const VP8LPrefixCode kPrefixEncodeCode[PREFIX_LOOKUP_IDX_MAX] = { - { 0, 0}, { 0, 0}, { 1, 0}, { 2, 0}, { 3, 0}, { 4, 1}, { 4, 1}, { 5, 1}, - { 5, 1}, { 6, 2}, { 6, 2}, { 6, 2}, { 6, 2}, { 7, 2}, { 7, 2}, { 7, 2}, - { 7, 2}, { 8, 3}, { 8, 3}, { 8, 3}, { 8, 3}, { 8, 3}, { 8, 3}, { 8, 3}, - { 8, 3}, { 9, 3}, { 9, 3}, { 9, 3}, { 9, 3}, { 9, 3}, { 9, 3}, { 9, 3}, - { 9, 3}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, - {10, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, - {10, 4}, {11, 4}, {11, 4}, {11, 4}, {11, 4}, {11, 4}, {11, 4}, {11, 4}, - {11, 4}, {11, 4}, {11, 4}, {11, 4}, {11, 4}, {11, 4}, {11, 4}, {11, 4}, - {11, 4}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, - {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, - {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, - {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, - {12, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, - {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, - {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, - {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, - {13, 5}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, - {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, - {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, - {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, - {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, - {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, - {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, - {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, - {14, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, - {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, - {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, - {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, - {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, - {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, - {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, - {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, - {15, 6}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, - {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, - {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, - {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, - {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, - {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, - {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, - {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, - {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, - {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, - {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, - {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, - {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, - {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, - {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, - {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, - {16, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, - {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, - {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, - {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, - {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, - {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, - {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, - {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, - {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, - {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, - {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, - {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, - {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, - {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, - {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, - {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, -}; - -const uint8_t kPrefixEncodeExtraBitsValue[PREFIX_LOOKUP_IDX_MAX] = { - 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 2, 3, 0, 1, 2, 3, - 0, 1, 2, 3, 4, 5, 6, 7, 0, 1, 2, 3, 4, 5, 6, 7, - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, - 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, - 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, - 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, - 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, - 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, - 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, - 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, - 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, - 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, - 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, - 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, - 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, - 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, - 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, - 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, - 127, - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, - 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, - 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, - 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, - 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, - 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, - 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, - 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126 -}; - -static float FastSLog2Slow(uint32_t v) { - assert(v >= LOG_LOOKUP_IDX_MAX); - if (v < APPROX_LOG_WITH_CORRECTION_MAX) { - int log_cnt = 0; - uint32_t y = 1; - int correction = 0; - const float v_f = (float)v; - const uint32_t orig_v = v; - do { - ++log_cnt; - v = v >> 1; - y = y << 1; - } while (v >= LOG_LOOKUP_IDX_MAX); - // vf = (2^log_cnt) * Xf; where y = 2^log_cnt and Xf < 256 - // Xf = floor(Xf) * (1 + (v % y) / v) - // log2(Xf) = log2(floor(Xf)) + log2(1 + (v % y) / v) - // The correction factor: log(1 + d) ~ d; for very small d values, so - // log2(1 + (v % y) / v) ~ LOG_2_RECIPROCAL * (v % y)/v - // LOG_2_RECIPROCAL ~ 23/16 - correction = (23 * (orig_v & (y - 1))) >> 4; - return v_f * (kLog2Table[v] + log_cnt) + correction; - } else { - return (float)(LOG_2_RECIPROCAL * v * log((double)v)); - } -} - -static float FastLog2Slow(uint32_t v) { - assert(v >= LOG_LOOKUP_IDX_MAX); - if (v < APPROX_LOG_WITH_CORRECTION_MAX) { - int log_cnt = 0; - uint32_t y = 1; - const uint32_t orig_v = v; - double log_2; - do { - ++log_cnt; - v = v >> 1; - y = y << 1; - } while (v >= LOG_LOOKUP_IDX_MAX); - log_2 = kLog2Table[v] + log_cnt; - if (orig_v >= APPROX_LOG_MAX) { - // Since the division is still expensive, add this correction factor only - // for large values of 'v'. - const int correction = (23 * (orig_v & (y - 1))) >> 4; - log_2 += (double)correction / orig_v; - } - return (float)log_2; - } else { - return (float)(LOG_2_RECIPROCAL * log((double)v)); - } -} - -// Mostly used to reduce code size + readability -static WEBP_INLINE int GetMin(int a, int b) { return (a > b) ? b : a; } -static WEBP_INLINE int GetMax(int a, int b) { return (a < b) ? b : a; } - -//------------------------------------------------------------------------------ -// Methods to calculate Entropy (Shannon). - -static float PredictionCostSpatial(const int counts[256], int weight_0, - double exp_val) { - const int significant_symbols = 256 >> 4; - const double exp_decay_factor = 0.6; - double bits = weight_0 * counts[0]; - int i; - for (i = 1; i < significant_symbols; ++i) { - bits += exp_val * (counts[i] + counts[256 - i]); - exp_val *= exp_decay_factor; - } - return (float)(-0.1 * bits); -} - -// Compute the combined Shanon's entropy for distribution {X} and {X+Y} -static float CombinedShannonEntropy(const int X[256], const int Y[256]) { - int i; - double retval = 0.; - int sumX = 0, sumXY = 0; - for (i = 0; i < 256; ++i) { - const int x = X[i]; - if (x != 0) { - const int xy = x + Y[i]; - sumX += x; - retval -= VP8LFastSLog2(x); - sumXY += xy; - retval -= VP8LFastSLog2(xy); - } else if (Y[i] != 0) { - sumXY += Y[i]; - retval -= VP8LFastSLog2(Y[i]); - } - } - retval += VP8LFastSLog2(sumX) + VP8LFastSLog2(sumXY); - return (float)retval; -} - -static float PredictionCostSpatialHistogram(const int accumulated[4][256], - const int tile[4][256]) { - int i; - double retval = 0; - for (i = 0; i < 4; ++i) { - const double kExpValue = 0.94; - retval += PredictionCostSpatial(tile[i], 1, kExpValue); - retval += VP8LCombinedShannonEntropy(tile[i], accumulated[i]); - } - return (float)retval; -} - -void VP8LBitEntropyInit(VP8LBitEntropy* const entropy) { - entropy->entropy = 0.; - entropy->sum = 0; - entropy->nonzeros = 0; - entropy->max_val = 0; - entropy->nonzero_code = VP8L_NON_TRIVIAL_SYM; -} - -void VP8LBitsEntropyUnrefined(const uint32_t* const array, int n, - VP8LBitEntropy* const entropy) { - int i; - - VP8LBitEntropyInit(entropy); - - for (i = 0; i < n; ++i) { - if (array[i] != 0) { - entropy->sum += array[i]; - entropy->nonzero_code = i; - ++entropy->nonzeros; - entropy->entropy -= VP8LFastSLog2(array[i]); - if (entropy->max_val < array[i]) { - entropy->max_val = array[i]; - } - } - } - entropy->entropy += VP8LFastSLog2(entropy->sum); -} - -static WEBP_INLINE void GetEntropyUnrefinedHelper( - uint32_t val, int i, uint32_t* const val_prev, int* const i_prev, - VP8LBitEntropy* const bit_entropy, VP8LStreaks* const stats) { - const int streak = i - *i_prev; - - // Gather info for the bit entropy. - if (*val_prev != 0) { - bit_entropy->sum += (*val_prev) * streak; - bit_entropy->nonzeros += streak; - bit_entropy->nonzero_code = *i_prev; - bit_entropy->entropy -= VP8LFastSLog2(*val_prev) * streak; - if (bit_entropy->max_val < *val_prev) { - bit_entropy->max_val = *val_prev; - } - } - - // Gather info for the Huffman cost. - stats->counts[*val_prev != 0] += (streak > 3); - stats->streaks[*val_prev != 0][(streak > 3)] += streak; - - *val_prev = val; - *i_prev = i; -} - -void VP8LGetEntropyUnrefined(const uint32_t* const X, int length, - VP8LBitEntropy* const bit_entropy, - VP8LStreaks* const stats) { - int i; - int i_prev = 0; - uint32_t x_prev = X[0]; - - memset(stats, 0, sizeof(*stats)); - VP8LBitEntropyInit(bit_entropy); - - for (i = 1; i < length; ++i) { - const uint32_t x = X[i]; - if (x != x_prev) { - VP8LGetEntropyUnrefinedHelper(x, i, &x_prev, &i_prev, bit_entropy, stats); - } - } - VP8LGetEntropyUnrefinedHelper(0, i, &x_prev, &i_prev, bit_entropy, stats); - - bit_entropy->entropy += VP8LFastSLog2(bit_entropy->sum); -} - -void VP8LGetCombinedEntropyUnrefined(const uint32_t* const X, - const uint32_t* const Y, int length, - VP8LBitEntropy* const bit_entropy, - VP8LStreaks* const stats) { - int i = 1; - int i_prev = 0; - uint32_t xy_prev = X[0] + Y[0]; - - memset(stats, 0, sizeof(*stats)); - VP8LBitEntropyInit(bit_entropy); - - for (i = 1; i < length; ++i) { - const uint32_t xy = X[i] + Y[i]; - if (xy != xy_prev) { - VP8LGetEntropyUnrefinedHelper(xy, i, &xy_prev, &i_prev, bit_entropy, - stats); - } - } - VP8LGetEntropyUnrefinedHelper(0, i, &xy_prev, &i_prev, bit_entropy, stats); - - bit_entropy->entropy += VP8LFastSLog2(bit_entropy->sum); -} - -static WEBP_INLINE void UpdateHisto(int histo_argb[4][256], uint32_t argb) { - ++histo_argb[0][argb >> 24]; - ++histo_argb[1][(argb >> 16) & 0xff]; - ++histo_argb[2][(argb >> 8) & 0xff]; - ++histo_argb[3][argb & 0xff]; -} - -//------------------------------------------------------------------------------ - -static WEBP_INLINE uint32_t Predict(VP8LPredictorFunc pred_func, - int x, int y, - const uint32_t* current_row, - const uint32_t* upper_row) { - if (y == 0) { - return (x == 0) ? ARGB_BLACK : current_row[x - 1]; // Left. - } else if (x == 0) { - return upper_row[x]; // Top. - } else { - return pred_func(current_row[x - 1], upper_row + x); - } -} - -static int MaxDiffBetweenPixels(uint32_t p1, uint32_t p2) { - const int diff_a = abs((int)(p1 >> 24) - (int)(p2 >> 24)); - const int diff_r = abs((int)((p1 >> 16) & 0xff) - (int)((p2 >> 16) & 0xff)); - const int diff_g = abs((int)((p1 >> 8) & 0xff) - (int)((p2 >> 8) & 0xff)); - const int diff_b = abs((int)(p1 & 0xff) - (int)(p2 & 0xff)); - return GetMax(GetMax(diff_a, diff_r), GetMax(diff_g, diff_b)); -} - -static int MaxDiffAroundPixel(uint32_t current, uint32_t up, uint32_t down, - uint32_t left, uint32_t right) { - const int diff_up = MaxDiffBetweenPixels(current, up); - const int diff_down = MaxDiffBetweenPixels(current, down); - const int diff_left = MaxDiffBetweenPixels(current, left); - const int diff_right = MaxDiffBetweenPixels(current, right); - return GetMax(GetMax(diff_up, diff_down), GetMax(diff_left, diff_right)); -} - -static uint32_t AddGreenToBlueAndRed(uint32_t argb) { - const uint32_t green = (argb >> 8) & 0xff; - uint32_t red_blue = argb & 0x00ff00ffu; - red_blue += (green << 16) | green; - red_blue &= 0x00ff00ffu; - return (argb & 0xff00ff00u) | red_blue; -} - -static void MaxDiffsForRow(int width, int stride, const uint32_t* const argb, - uint8_t* const max_diffs, int used_subtract_green) { - uint32_t current, up, down, left, right; - int x; - if (width <= 2) return; - current = argb[0]; - right = argb[1]; - if (used_subtract_green) { - current = AddGreenToBlueAndRed(current); - right = AddGreenToBlueAndRed(right); - } - // max_diffs[0] and max_diffs[width - 1] are never used. - for (x = 1; x < width - 1; ++x) { - up = argb[-stride + x]; - down = argb[stride + x]; - left = current; - current = right; - right = argb[x + 1]; - if (used_subtract_green) { - up = AddGreenToBlueAndRed(up); - down = AddGreenToBlueAndRed(down); - right = AddGreenToBlueAndRed(right); - } - max_diffs[x] = MaxDiffAroundPixel(current, up, down, left, right); - } -} - -// Quantize the difference between the actual component value and its prediction -// to a multiple of quantization, working modulo 256, taking care not to cross -// a boundary (inclusive upper limit). -static uint8_t NearLosslessComponent(uint8_t value, uint8_t predict, - uint8_t boundary, int quantization) { - const int residual = (value - predict) & 0xff; - const int boundary_residual = (boundary - predict) & 0xff; - const int lower = residual & ~(quantization - 1); - const int upper = lower + quantization; - // Resolve ties towards a value closer to the prediction (i.e. towards lower - // if value comes after prediction and towards upper otherwise). - const int bias = ((boundary - value) & 0xff) < boundary_residual; - if (residual - lower < upper - residual + bias) { - // lower is closer to residual than upper. - if (residual > boundary_residual && lower <= boundary_residual) { - // Halve quantization step to avoid crossing boundary. This midpoint is - // on the same side of boundary as residual because midpoint >= residual - // (since lower is closer than upper) and residual is above the boundary. - return lower + (quantization >> 1); - } - return lower; - } else { - // upper is closer to residual than lower. - if (residual <= boundary_residual && upper > boundary_residual) { - // Halve quantization step to avoid crossing boundary. This midpoint is - // on the same side of boundary as residual because midpoint <= residual - // (since upper is closer than lower) and residual is below the boundary. - return lower + (quantization >> 1); - } - return upper & 0xff; - } -} - -// Quantize every component of the difference between the actual pixel value and -// its prediction to a multiple of a quantization (a power of 2, not larger than -// max_quantization which is a power of 2, smaller than max_diff). Take care if -// value and predict have undergone subtract green, which means that red and -// blue are represented as offsets from green. -static uint32_t NearLossless(uint32_t value, uint32_t predict, - int max_quantization, int max_diff, - int used_subtract_green) { - int quantization; - uint8_t new_green = 0; - uint8_t green_diff = 0; - uint8_t a, r, g, b; - if (max_diff <= 2) { - return VP8LSubPixels(value, predict); - } - quantization = max_quantization; - while (quantization >= max_diff) { - quantization >>= 1; - } - if ((value >> 24) == 0 || (value >> 24) == 0xff) { - // Preserve transparency of fully transparent or fully opaque pixels. - a = ((value >> 24) - (predict >> 24)) & 0xff; - } else { - a = NearLosslessComponent(value >> 24, predict >> 24, 0xff, quantization); - } - g = NearLosslessComponent((value >> 8) & 0xff, (predict >> 8) & 0xff, 0xff, - quantization); - if (used_subtract_green) { - // The green offset will be added to red and blue components during decoding - // to obtain the actual red and blue values. - new_green = ((predict >> 8) + g) & 0xff; - // The amount by which green has been adjusted during quantization. It is - // subtracted from red and blue for compensation, to avoid accumulating two - // quantization errors in them. - green_diff = (new_green - (value >> 8)) & 0xff; - } - r = NearLosslessComponent(((value >> 16) - green_diff) & 0xff, - (predict >> 16) & 0xff, 0xff - new_green, - quantization); - b = NearLosslessComponent((value - green_diff) & 0xff, predict & 0xff, - 0xff - new_green, quantization); - return ((uint32_t)a << 24) | ((uint32_t)r << 16) | ((uint32_t)g << 8) | b; -} - -// Returns the difference between the pixel and its prediction. In case of a -// lossy encoding, updates the source image to avoid propagating the deviation -// further to pixels which depend on the current pixel for their predictions. -static WEBP_INLINE uint32_t GetResidual(int width, int height, - uint32_t* const upper_row, - uint32_t* const current_row, - const uint8_t* const max_diffs, - int mode, VP8LPredictorFunc pred_func, - int x, int y, int max_quantization, - int exact, int used_subtract_green) { - const uint32_t predict = Predict(pred_func, x, y, current_row, upper_row); - uint32_t residual; - if (max_quantization == 1 || mode == 0 || y == 0 || y == height - 1 || - x == 0 || x == width - 1) { - residual = VP8LSubPixels(current_row[x], predict); - } else { - residual = NearLossless(current_row[x], predict, max_quantization, - max_diffs[x], used_subtract_green); - // Update the source image. - current_row[x] = VP8LAddPixels(predict, residual); - // x is never 0 here so we do not need to update upper_row like below. - } - if (!exact && (current_row[x] & kMaskAlpha) == 0) { - // If alpha is 0, cleanup RGB. We can choose the RGB values of the residual - // for best compression. The prediction of alpha itself can be non-zero and - // must be kept though. We choose RGB of the residual to be 0. - residual &= kMaskAlpha; - // Update the source image. - current_row[x] = predict & ~kMaskAlpha; - // The prediction for the rightmost pixel in a row uses the leftmost pixel - // in that row as its top-right context pixel. Hence if we change the - // leftmost pixel of current_row, the corresponding change must be applied - // to upper_row as well where top-right context is being read from. - if (x == 0 && y != 0) upper_row[width] = current_row[0]; - } - return residual; -} - -// Returns best predictor and updates the accumulated histogram. -// If max_quantization > 1, assumes that near lossless processing will be -// applied, quantizing residuals to multiples of quantization levels up to -// max_quantization (the actual quantization level depends on smoothness near -// the given pixel). -static int GetBestPredictorForTile(int width, int height, - int tile_x, int tile_y, int bits, - int accumulated[4][256], - uint32_t* const argb_scratch, - const uint32_t* const argb, - int max_quantization, - int exact, int used_subtract_green) { - const int kNumPredModes = 14; - const int start_x = tile_x << bits; - const int start_y = tile_y << bits; - const int tile_size = 1 << bits; - const int max_y = GetMin(tile_size, height - start_y); - const int max_x = GetMin(tile_size, width - start_x); - // Whether there exist columns just outside the tile. - const int have_left = (start_x > 0); - const int have_right = (max_x < width - start_x); - // Position and size of the strip covering the tile and adjacent columns if - // they exist. - const int context_start_x = start_x - have_left; - const int context_width = max_x + have_left + have_right; - // The width of upper_row and current_row is one pixel larger than image width - // to allow the top right pixel to point to the leftmost pixel of the next row - // when at the right edge. - uint32_t* upper_row = argb_scratch; - uint32_t* current_row = upper_row + width + 1; - uint8_t* const max_diffs = (uint8_t*)(current_row + width + 1); - float best_diff = MAX_DIFF_COST; - int best_mode = 0; - int mode; - int histo_stack_1[4][256]; - int histo_stack_2[4][256]; - // Need pointers to be able to swap arrays. - int (*histo_argb)[256] = histo_stack_1; - int (*best_histo)[256] = histo_stack_2; - int i, j; - - for (mode = 0; mode < kNumPredModes; ++mode) { - const VP8LPredictorFunc pred_func = VP8LPredictors[mode]; - float cur_diff; - int relative_y; - memset(histo_argb, 0, sizeof(histo_stack_1)); - if (start_y > 0) { - // Read the row above the tile which will become the first upper_row. - // Include a pixel to the left if it exists; include a pixel to the right - // in all cases (wrapping to the leftmost pixel of the next row if it does - // not exist). - memcpy(current_row + context_start_x, - argb + (start_y - 1) * width + context_start_x, - sizeof(*argb) * (max_x + have_left + 1)); - } - for (relative_y = 0; relative_y < max_y; ++relative_y) { - const int y = start_y + relative_y; - int relative_x; - uint32_t* tmp = upper_row; - upper_row = current_row; - current_row = tmp; - // Read current_row. Include a pixel to the left if it exists; include a - // pixel to the right in all cases except at the bottom right corner of - // the image (wrapping to the leftmost pixel of the next row if it does - // not exist in the current row). - memcpy(current_row + context_start_x, - argb + y * width + context_start_x, - sizeof(*argb) * (max_x + have_left + (y + 1 < height))); - if (max_quantization > 1 && y >= 1 && y + 1 < height) { - MaxDiffsForRow(context_width, width, argb + y * width + context_start_x, - max_diffs + context_start_x, used_subtract_green); - } - - for (relative_x = 0; relative_x < max_x; ++relative_x) { - const int x = start_x + relative_x; - UpdateHisto(histo_argb, - GetResidual(width, height, upper_row, current_row, - max_diffs, mode, pred_func, x, y, - max_quantization, exact, used_subtract_green)); - } - } - cur_diff = PredictionCostSpatialHistogram( - (const int (*)[256])accumulated, (const int (*)[256])histo_argb); - if (cur_diff < best_diff) { - int (*tmp)[256] = histo_argb; - histo_argb = best_histo; - best_histo = tmp; - best_diff = cur_diff; - best_mode = mode; - } - } - - for (i = 0; i < 4; i++) { - for (j = 0; j < 256; j++) { - accumulated[i][j] += best_histo[i][j]; - } - } - - return best_mode; -} - -// Converts pixels of the image to residuals with respect to predictions. -// If max_quantization > 1, applies near lossless processing, quantizing -// residuals to multiples of quantization levels up to max_quantization -// (the actual quantization level depends on smoothness near the given pixel). -static void CopyImageWithPrediction(int width, int height, - int bits, uint32_t* const modes, - uint32_t* const argb_scratch, - uint32_t* const argb, - int low_effort, int max_quantization, - int exact, int used_subtract_green) { - const int tiles_per_row = VP8LSubSampleSize(width, bits); - const int mask = (1 << bits) - 1; - // The width of upper_row and current_row is one pixel larger than image width - // to allow the top right pixel to point to the leftmost pixel of the next row - // when at the right edge. - uint32_t* upper_row = argb_scratch; - uint32_t* current_row = upper_row + width + 1; - uint8_t* current_max_diffs = (uint8_t*)(current_row + width + 1); - uint8_t* lower_max_diffs = current_max_diffs + width; - int y; - int mode = 0; - VP8LPredictorFunc pred_func = NULL; - - for (y = 0; y < height; ++y) { - int x; - uint32_t* const tmp32 = upper_row; - upper_row = current_row; - current_row = tmp32; - memcpy(current_row, argb + y * width, - sizeof(*argb) * (width + (y + 1 < height))); - - if (low_effort) { - for (x = 0; x < width; ++x) { - const uint32_t predict = Predict(VP8LPredictors[kPredLowEffort], x, y, - current_row, upper_row); - argb[y * width + x] = VP8LSubPixels(current_row[x], predict); - } - } else { - if (max_quantization > 1) { - // Compute max_diffs for the lower row now, because that needs the - // contents of argb for the current row, which we will overwrite with - // residuals before proceeding with the next row. - uint8_t* const tmp8 = current_max_diffs; - current_max_diffs = lower_max_diffs; - lower_max_diffs = tmp8; - if (y + 2 < height) { - MaxDiffsForRow(width, width, argb + (y + 1) * width, lower_max_diffs, - used_subtract_green); - } - } - for (x = 0; x < width; ++x) { - if ((x & mask) == 0) { - mode = (modes[(y >> bits) * tiles_per_row + (x >> bits)] >> 8) & 0xff; - pred_func = VP8LPredictors[mode]; - } - argb[y * width + x] = GetResidual( - width, height, upper_row, current_row, current_max_diffs, mode, - pred_func, x, y, max_quantization, exact, used_subtract_green); - } - } - } -} - -// Finds the best predictor for each tile, and converts the image to residuals -// with respect to predictions. If near_lossless_quality < 100, applies -// near lossless processing, shaving off more bits of residuals for lower -// qualities. -void VP8LResidualImage(int width, int height, int bits, int low_effort, - uint32_t* const argb, uint32_t* const argb_scratch, - uint32_t* const image, int near_lossless_quality, - int exact, int used_subtract_green) { - const int tiles_per_row = VP8LSubSampleSize(width, bits); - const int tiles_per_col = VP8LSubSampleSize(height, bits); - int tile_y; - int histo[4][256]; - const int max_quantization = 1 << VP8LNearLosslessBits(near_lossless_quality); - if (low_effort) { - int i; - for (i = 0; i < tiles_per_row * tiles_per_col; ++i) { - image[i] = ARGB_BLACK | (kPredLowEffort << 8); - } - } else { - memset(histo, 0, sizeof(histo)); - for (tile_y = 0; tile_y < tiles_per_col; ++tile_y) { - int tile_x; - for (tile_x = 0; tile_x < tiles_per_row; ++tile_x) { - const int pred = GetBestPredictorForTile(width, height, tile_x, tile_y, - bits, histo, argb_scratch, argb, max_quantization, exact, - used_subtract_green); - image[tile_y * tiles_per_row + tile_x] = ARGB_BLACK | (pred << 8); - } - } - } - - CopyImageWithPrediction(width, height, bits, image, argb_scratch, argb, - low_effort, max_quantization, exact, - used_subtract_green); -} - -void VP8LSubtractGreenFromBlueAndRed_C(uint32_t* argb_data, int num_pixels) { - int i; - for (i = 0; i < num_pixels; ++i) { - const uint32_t argb = argb_data[i]; - const uint32_t green = (argb >> 8) & 0xff; - const uint32_t new_r = (((argb >> 16) & 0xff) - green) & 0xff; - const uint32_t new_b = ((argb & 0xff) - green) & 0xff; - argb_data[i] = (argb & 0xff00ff00) | (new_r << 16) | new_b; - } -} - -static WEBP_INLINE void MultipliersClear(VP8LMultipliers* const m) { - m->green_to_red_ = 0; - m->green_to_blue_ = 0; - m->red_to_blue_ = 0; -} - -static WEBP_INLINE uint32_t ColorTransformDelta(int8_t color_pred, - int8_t color) { - return (uint32_t)((int)(color_pred) * color) >> 5; -} - -static WEBP_INLINE void ColorCodeToMultipliers(uint32_t color_code, - VP8LMultipliers* const m) { - m->green_to_red_ = (color_code >> 0) & 0xff; - m->green_to_blue_ = (color_code >> 8) & 0xff; - m->red_to_blue_ = (color_code >> 16) & 0xff; -} - -static WEBP_INLINE uint32_t MultipliersToColorCode( - const VP8LMultipliers* const m) { - return 0xff000000u | - ((uint32_t)(m->red_to_blue_) << 16) | - ((uint32_t)(m->green_to_blue_) << 8) | - m->green_to_red_; -} - -void VP8LTransformColor_C(const VP8LMultipliers* const m, uint32_t* data, - int num_pixels) { - int i; - for (i = 0; i < num_pixels; ++i) { - const uint32_t argb = data[i]; - const uint32_t green = argb >> 8; - const uint32_t red = argb >> 16; - uint32_t new_red = red; - uint32_t new_blue = argb; - new_red -= ColorTransformDelta(m->green_to_red_, green); - new_red &= 0xff; - new_blue -= ColorTransformDelta(m->green_to_blue_, green); - new_blue -= ColorTransformDelta(m->red_to_blue_, red); - new_blue &= 0xff; - data[i] = (argb & 0xff00ff00u) | (new_red << 16) | (new_blue); - } -} - -static WEBP_INLINE uint8_t TransformColorRed(uint8_t green_to_red, - uint32_t argb) { - const uint32_t green = argb >> 8; - uint32_t new_red = argb >> 16; - new_red -= ColorTransformDelta(green_to_red, green); - return (new_red & 0xff); -} - -static WEBP_INLINE uint8_t TransformColorBlue(uint8_t green_to_blue, - uint8_t red_to_blue, - uint32_t argb) { - const uint32_t green = argb >> 8; - const uint32_t red = argb >> 16; - uint8_t new_blue = argb; - new_blue -= ColorTransformDelta(green_to_blue, green); - new_blue -= ColorTransformDelta(red_to_blue, red); - return (new_blue & 0xff); -} - -static float PredictionCostCrossColor(const int accumulated[256], - const int counts[256]) { - // Favor low entropy, locally and globally. - // Favor small absolute values for PredictionCostSpatial - static const double kExpValue = 2.4; - return VP8LCombinedShannonEntropy(counts, accumulated) + - PredictionCostSpatial(counts, 3, kExpValue); -} - -void VP8LCollectColorRedTransforms_C(const uint32_t* argb, int stride, - int tile_width, int tile_height, - int green_to_red, int histo[]) { - while (tile_height-- > 0) { - int x; - for (x = 0; x < tile_width; ++x) { - ++histo[TransformColorRed(green_to_red, argb[x])]; - } - argb += stride; - } -} - -static float GetPredictionCostCrossColorRed( - const uint32_t* argb, int stride, int tile_width, int tile_height, - VP8LMultipliers prev_x, VP8LMultipliers prev_y, int green_to_red, - const int accumulated_red_histo[256]) { - int histo[256] = { 0 }; - float cur_diff; - - VP8LCollectColorRedTransforms(argb, stride, tile_width, tile_height, - green_to_red, histo); - - cur_diff = PredictionCostCrossColor(accumulated_red_histo, histo); - if ((uint8_t)green_to_red == prev_x.green_to_red_) { - cur_diff -= 3; // favor keeping the areas locally similar - } - if ((uint8_t)green_to_red == prev_y.green_to_red_) { - cur_diff -= 3; // favor keeping the areas locally similar - } - if (green_to_red == 0) { - cur_diff -= 3; - } - return cur_diff; -} - -static void GetBestGreenToRed( - const uint32_t* argb, int stride, int tile_width, int tile_height, - VP8LMultipliers prev_x, VP8LMultipliers prev_y, int quality, - const int accumulated_red_histo[256], VP8LMultipliers* const best_tx) { - const int kMaxIters = 4 + ((7 * quality) >> 8); // in range [4..6] - int green_to_red_best = 0; - int iter, offset; - float best_diff = GetPredictionCostCrossColorRed( - argb, stride, tile_width, tile_height, prev_x, prev_y, - green_to_red_best, accumulated_red_histo); - for (iter = 0; iter < kMaxIters; ++iter) { - // ColorTransformDelta is a 3.5 bit fixed point, so 32 is equal to - // one in color computation. Having initial delta here as 1 is sufficient - // to explore the range of (-2, 2). - const int delta = 32 >> iter; - // Try a negative and a positive delta from the best known value. - for (offset = -delta; offset <= delta; offset += 2 * delta) { - const int green_to_red_cur = offset + green_to_red_best; - const float cur_diff = GetPredictionCostCrossColorRed( - argb, stride, tile_width, tile_height, prev_x, prev_y, - green_to_red_cur, accumulated_red_histo); - if (cur_diff < best_diff) { - best_diff = cur_diff; - green_to_red_best = green_to_red_cur; - } - } - } - best_tx->green_to_red_ = green_to_red_best; -} - -void VP8LCollectColorBlueTransforms_C(const uint32_t* argb, int stride, - int tile_width, int tile_height, - int green_to_blue, int red_to_blue, - int histo[]) { - while (tile_height-- > 0) { - int x; - for (x = 0; x < tile_width; ++x) { - ++histo[TransformColorBlue(green_to_blue, red_to_blue, argb[x])]; - } - argb += stride; - } -} - -static float GetPredictionCostCrossColorBlue( - const uint32_t* argb, int stride, int tile_width, int tile_height, - VP8LMultipliers prev_x, VP8LMultipliers prev_y, - int green_to_blue, int red_to_blue, const int accumulated_blue_histo[256]) { - int histo[256] = { 0 }; - float cur_diff; - - VP8LCollectColorBlueTransforms(argb, stride, tile_width, tile_height, - green_to_blue, red_to_blue, histo); - - cur_diff = PredictionCostCrossColor(accumulated_blue_histo, histo); - if ((uint8_t)green_to_blue == prev_x.green_to_blue_) { - cur_diff -= 3; // favor keeping the areas locally similar - } - if ((uint8_t)green_to_blue == prev_y.green_to_blue_) { - cur_diff -= 3; // favor keeping the areas locally similar - } - if ((uint8_t)red_to_blue == prev_x.red_to_blue_) { - cur_diff -= 3; // favor keeping the areas locally similar - } - if ((uint8_t)red_to_blue == prev_y.red_to_blue_) { - cur_diff -= 3; // favor keeping the areas locally similar - } - if (green_to_blue == 0) { - cur_diff -= 3; - } - if (red_to_blue == 0) { - cur_diff -= 3; - } - return cur_diff; -} - -#define kGreenRedToBlueNumAxis 8 -#define kGreenRedToBlueMaxIters 7 -static void GetBestGreenRedToBlue( - const uint32_t* argb, int stride, int tile_width, int tile_height, - VP8LMultipliers prev_x, VP8LMultipliers prev_y, int quality, - const int accumulated_blue_histo[256], - VP8LMultipliers* const best_tx) { - const int8_t offset[kGreenRedToBlueNumAxis][2] = - {{0, -1}, {0, 1}, {-1, 0}, {1, 0}, {-1, -1}, {-1, 1}, {1, -1}, {1, 1}}; - const int8_t delta_lut[kGreenRedToBlueMaxIters] = { 16, 16, 8, 4, 2, 2, 2 }; - const int iters = - (quality < 25) ? 1 : (quality > 50) ? kGreenRedToBlueMaxIters : 4; - int green_to_blue_best = 0; - int red_to_blue_best = 0; - int iter; - // Initial value at origin: - float best_diff = GetPredictionCostCrossColorBlue( - argb, stride, tile_width, tile_height, prev_x, prev_y, - green_to_blue_best, red_to_blue_best, accumulated_blue_histo); - for (iter = 0; iter < iters; ++iter) { - const int delta = delta_lut[iter]; - int axis; - for (axis = 0; axis < kGreenRedToBlueNumAxis; ++axis) { - const int green_to_blue_cur = - offset[axis][0] * delta + green_to_blue_best; - const int red_to_blue_cur = offset[axis][1] * delta + red_to_blue_best; - const float cur_diff = GetPredictionCostCrossColorBlue( - argb, stride, tile_width, tile_height, prev_x, prev_y, - green_to_blue_cur, red_to_blue_cur, accumulated_blue_histo); - if (cur_diff < best_diff) { - best_diff = cur_diff; - green_to_blue_best = green_to_blue_cur; - red_to_blue_best = red_to_blue_cur; - } - if (quality < 25 && iter == 4) { - // Only axis aligned diffs for lower quality. - break; // next iter. - } - } - if (delta == 2 && green_to_blue_best == 0 && red_to_blue_best == 0) { - // Further iterations would not help. - break; // out of iter-loop. - } - } - best_tx->green_to_blue_ = green_to_blue_best; - best_tx->red_to_blue_ = red_to_blue_best; -} -#undef kGreenRedToBlueMaxIters -#undef kGreenRedToBlueNumAxis - -static VP8LMultipliers GetBestColorTransformForTile( - int tile_x, int tile_y, int bits, - VP8LMultipliers prev_x, - VP8LMultipliers prev_y, - int quality, int xsize, int ysize, - const int accumulated_red_histo[256], - const int accumulated_blue_histo[256], - const uint32_t* const argb) { - const int max_tile_size = 1 << bits; - const int tile_y_offset = tile_y * max_tile_size; - const int tile_x_offset = tile_x * max_tile_size; - const int all_x_max = GetMin(tile_x_offset + max_tile_size, xsize); - const int all_y_max = GetMin(tile_y_offset + max_tile_size, ysize); - const int tile_width = all_x_max - tile_x_offset; - const int tile_height = all_y_max - tile_y_offset; - const uint32_t* const tile_argb = argb + tile_y_offset * xsize - + tile_x_offset; - VP8LMultipliers best_tx; - MultipliersClear(&best_tx); - - GetBestGreenToRed(tile_argb, xsize, tile_width, tile_height, - prev_x, prev_y, quality, accumulated_red_histo, &best_tx); - GetBestGreenRedToBlue(tile_argb, xsize, tile_width, tile_height, - prev_x, prev_y, quality, accumulated_blue_histo, - &best_tx); - return best_tx; -} - -static void CopyTileWithColorTransform(int xsize, int ysize, - int tile_x, int tile_y, - int max_tile_size, - VP8LMultipliers color_transform, - uint32_t* argb) { - const int xscan = GetMin(max_tile_size, xsize - tile_x); - int yscan = GetMin(max_tile_size, ysize - tile_y); - argb += tile_y * xsize + tile_x; - while (yscan-- > 0) { - VP8LTransformColor(&color_transform, argb, xscan); - argb += xsize; - } -} - -void VP8LColorSpaceTransform(int width, int height, int bits, int quality, - uint32_t* const argb, uint32_t* image) { - const int max_tile_size = 1 << bits; - const int tile_xsize = VP8LSubSampleSize(width, bits); - const int tile_ysize = VP8LSubSampleSize(height, bits); - int accumulated_red_histo[256] = { 0 }; - int accumulated_blue_histo[256] = { 0 }; - int tile_x, tile_y; - VP8LMultipliers prev_x, prev_y; - MultipliersClear(&prev_y); - MultipliersClear(&prev_x); - for (tile_y = 0; tile_y < tile_ysize; ++tile_y) { - for (tile_x = 0; tile_x < tile_xsize; ++tile_x) { - int y; - const int tile_x_offset = tile_x * max_tile_size; - const int tile_y_offset = tile_y * max_tile_size; - const int all_x_max = GetMin(tile_x_offset + max_tile_size, width); - const int all_y_max = GetMin(tile_y_offset + max_tile_size, height); - const int offset = tile_y * tile_xsize + tile_x; - if (tile_y != 0) { - ColorCodeToMultipliers(image[offset - tile_xsize], &prev_y); - } - prev_x = GetBestColorTransformForTile(tile_x, tile_y, bits, - prev_x, prev_y, - quality, width, height, - accumulated_red_histo, - accumulated_blue_histo, - argb); - image[offset] = MultipliersToColorCode(&prev_x); - CopyTileWithColorTransform(width, height, tile_x_offset, tile_y_offset, - max_tile_size, prev_x, argb); - - // Gather accumulated histogram data. - for (y = tile_y_offset; y < all_y_max; ++y) { - int ix = y * width + tile_x_offset; - const int ix_end = ix + all_x_max - tile_x_offset; - for (; ix < ix_end; ++ix) { - const uint32_t pix = argb[ix]; - if (ix >= 2 && - pix == argb[ix - 2] && - pix == argb[ix - 1]) { - continue; // repeated pixels are handled by backward references - } - if (ix >= width + 2 && - argb[ix - 2] == argb[ix - width - 2] && - argb[ix - 1] == argb[ix - width - 1] && - pix == argb[ix - width]) { - continue; // repeated pixels are handled by backward references - } - ++accumulated_red_histo[(pix >> 16) & 0xff]; - ++accumulated_blue_histo[(pix >> 0) & 0xff]; - } - } - } - } -} - -//------------------------------------------------------------------------------ - -static int VectorMismatch(const uint32_t* const array1, - const uint32_t* const array2, int length) { - int match_len = 0; - - while (match_len < length && array1[match_len] == array2[match_len]) { - ++match_len; - } - return match_len; -} - -// Bundles multiple (1, 2, 4 or 8) pixels into a single pixel. -void VP8LBundleColorMap(const uint8_t* const row, int width, - int xbits, uint32_t* const dst) { - int x; - if (xbits > 0) { - const int bit_depth = 1 << (3 - xbits); - const int mask = (1 << xbits) - 1; - uint32_t code = 0xff000000; - for (x = 0; x < width; ++x) { - const int xsub = x & mask; - if (xsub == 0) { - code = 0xff000000; - } - code |= row[x] << (8 + bit_depth * xsub); - dst[x >> xbits] = code; - } - } else { - for (x = 0; x < width; ++x) dst[x] = 0xff000000 | (row[x] << 8); - } -} - -//------------------------------------------------------------------------------ - -static double ExtraCost(const uint32_t* population, int length) { - int i; - double cost = 0.; - for (i = 2; i < length - 2; ++i) cost += (i >> 1) * population[i + 2]; - return cost; -} - -static double ExtraCostCombined(const uint32_t* X, const uint32_t* Y, - int length) { - int i; - double cost = 0.; - for (i = 2; i < length - 2; ++i) { - const int xy = X[i + 2] + Y[i + 2]; - cost += (i >> 1) * xy; - } - return cost; -} - -//------------------------------------------------------------------------------ - -static void HistogramAdd(const VP8LHistogram* const a, - const VP8LHistogram* const b, - VP8LHistogram* const out) { - int i; - const int literal_size = VP8LHistogramNumCodes(a->palette_code_bits_); - assert(a->palette_code_bits_ == b->palette_code_bits_); - if (b != out) { - for (i = 0; i < literal_size; ++i) { - out->literal_[i] = a->literal_[i] + b->literal_[i]; - } - for (i = 0; i < NUM_DISTANCE_CODES; ++i) { - out->distance_[i] = a->distance_[i] + b->distance_[i]; - } - for (i = 0; i < NUM_LITERAL_CODES; ++i) { - out->red_[i] = a->red_[i] + b->red_[i]; - out->blue_[i] = a->blue_[i] + b->blue_[i]; - out->alpha_[i] = a->alpha_[i] + b->alpha_[i]; - } - } else { - for (i = 0; i < literal_size; ++i) { - out->literal_[i] += a->literal_[i]; - } - for (i = 0; i < NUM_DISTANCE_CODES; ++i) { - out->distance_[i] += a->distance_[i]; - } - for (i = 0; i < NUM_LITERAL_CODES; ++i) { - out->red_[i] += a->red_[i]; - out->blue_[i] += a->blue_[i]; - out->alpha_[i] += a->alpha_[i]; - } - } -} - -//------------------------------------------------------------------------------ - -VP8LProcessBlueAndRedFunc VP8LSubtractGreenFromBlueAndRed; - -VP8LTransformColorFunc VP8LTransformColor; - -VP8LCollectColorBlueTransformsFunc VP8LCollectColorBlueTransforms; -VP8LCollectColorRedTransformsFunc VP8LCollectColorRedTransforms; - -VP8LFastLog2SlowFunc VP8LFastLog2Slow; -VP8LFastLog2SlowFunc VP8LFastSLog2Slow; - -VP8LCostFunc VP8LExtraCost; -VP8LCostCombinedFunc VP8LExtraCostCombined; -VP8LCombinedShannonEntropyFunc VP8LCombinedShannonEntropy; - -GetEntropyUnrefinedHelperFunc VP8LGetEntropyUnrefinedHelper; - -VP8LHistogramAddFunc VP8LHistogramAdd; - -VP8LVectorMismatchFunc VP8LVectorMismatch; - -extern void VP8LEncDspInitSSE2(void); -extern void VP8LEncDspInitSSE41(void); -extern void VP8LEncDspInitNEON(void); -extern void VP8LEncDspInitMIPS32(void); -extern void VP8LEncDspInitMIPSdspR2(void); - -static volatile VP8CPUInfo lossless_enc_last_cpuinfo_used = - (VP8CPUInfo)&lossless_enc_last_cpuinfo_used; - -WEBP_TSAN_IGNORE_FUNCTION void VP8LEncDspInit(void) { - if (lossless_enc_last_cpuinfo_used == VP8GetCPUInfo) return; - - VP8LDspInit(); - - VP8LSubtractGreenFromBlueAndRed = VP8LSubtractGreenFromBlueAndRed_C; - - VP8LTransformColor = VP8LTransformColor_C; - - VP8LCollectColorBlueTransforms = VP8LCollectColorBlueTransforms_C; - VP8LCollectColorRedTransforms = VP8LCollectColorRedTransforms_C; - - VP8LFastLog2Slow = FastLog2Slow; - VP8LFastSLog2Slow = FastSLog2Slow; - - VP8LExtraCost = ExtraCost; - VP8LExtraCostCombined = ExtraCostCombined; - VP8LCombinedShannonEntropy = CombinedShannonEntropy; - - VP8LGetEntropyUnrefinedHelper = GetEntropyUnrefinedHelper; - - VP8LHistogramAdd = HistogramAdd; - - VP8LVectorMismatch = VectorMismatch; - - // If defined, use CPUInfo() to overwrite some pointers with faster versions. - if (VP8GetCPUInfo != NULL) { -#if defined(WEBP_USE_SSE2) - if (VP8GetCPUInfo(kSSE2)) { - VP8LEncDspInitSSE2(); -#if defined(WEBP_USE_SSE41) - if (VP8GetCPUInfo(kSSE4_1)) { - VP8LEncDspInitSSE41(); - } -#endif - } -#endif -#if defined(WEBP_USE_NEON) - if (VP8GetCPUInfo(kNEON)) { - VP8LEncDspInitNEON(); - } -#endif -#if defined(WEBP_USE_MIPS32) - if (VP8GetCPUInfo(kMIPS32)) { - VP8LEncDspInitMIPS32(); - } -#endif -#if defined(WEBP_USE_MIPS_DSP_R2) - if (VP8GetCPUInfo(kMIPSdspR2)) { - VP8LEncDspInitMIPSdspR2(); - } -#endif - } - lossless_enc_last_cpuinfo_used = VP8GetCPUInfo; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/dsp/lossless_enc_mips32.c b/drivers/webp/dsp/lossless_enc_mips32.c deleted file mode 100644 index 49c666d4fd..0000000000 --- a/drivers/webp/dsp/lossless_enc_mips32.c +++ /dev/null @@ -1,386 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// MIPS version of lossless functions -// -// Author(s): Djordje Pesut (djordje.pesut@imgtec.com) -// Jovan Zelincevic (jovan.zelincevic@imgtec.com) - -#include "./dsp.h" -#include "./lossless.h" - -#if defined(WEBP_USE_MIPS32) - -#include <assert.h> -#include <math.h> -#include <stdlib.h> -#include <string.h> - -static float FastSLog2Slow(uint32_t v) { - assert(v >= LOG_LOOKUP_IDX_MAX); - if (v < APPROX_LOG_WITH_CORRECTION_MAX) { - uint32_t log_cnt, y, correction; - const int c24 = 24; - const float v_f = (float)v; - uint32_t temp; - - // Xf = 256 = 2^8 - // log_cnt is index of leading one in upper 24 bits - __asm__ volatile( - "clz %[log_cnt], %[v] \n\t" - "addiu %[y], $zero, 1 \n\t" - "subu %[log_cnt], %[c24], %[log_cnt] \n\t" - "sllv %[y], %[y], %[log_cnt] \n\t" - "srlv %[temp], %[v], %[log_cnt] \n\t" - : [log_cnt]"=&r"(log_cnt), [y]"=&r"(y), - [temp]"=r"(temp) - : [c24]"r"(c24), [v]"r"(v) - ); - - // vf = (2^log_cnt) * Xf; where y = 2^log_cnt and Xf < 256 - // Xf = floor(Xf) * (1 + (v % y) / v) - // log2(Xf) = log2(floor(Xf)) + log2(1 + (v % y) / v) - // The correction factor: log(1 + d) ~ d; for very small d values, so - // log2(1 + (v % y) / v) ~ LOG_2_RECIPROCAL * (v % y)/v - // LOG_2_RECIPROCAL ~ 23/16 - - // (v % y) = (v % 2^log_cnt) = v & (2^log_cnt - 1) - correction = (23 * (v & (y - 1))) >> 4; - return v_f * (kLog2Table[temp] + log_cnt) + correction; - } else { - return (float)(LOG_2_RECIPROCAL * v * log((double)v)); - } -} - -static float FastLog2Slow(uint32_t v) { - assert(v >= LOG_LOOKUP_IDX_MAX); - if (v < APPROX_LOG_WITH_CORRECTION_MAX) { - uint32_t log_cnt, y; - const int c24 = 24; - double log_2; - uint32_t temp; - - __asm__ volatile( - "clz %[log_cnt], %[v] \n\t" - "addiu %[y], $zero, 1 \n\t" - "subu %[log_cnt], %[c24], %[log_cnt] \n\t" - "sllv %[y], %[y], %[log_cnt] \n\t" - "srlv %[temp], %[v], %[log_cnt] \n\t" - : [log_cnt]"=&r"(log_cnt), [y]"=&r"(y), - [temp]"=r"(temp) - : [c24]"r"(c24), [v]"r"(v) - ); - - log_2 = kLog2Table[temp] + log_cnt; - if (v >= APPROX_LOG_MAX) { - // Since the division is still expensive, add this correction factor only - // for large values of 'v'. - - const uint32_t correction = (23 * (v & (y - 1))) >> 4; - log_2 += (double)correction / v; - } - return (float)log_2; - } else { - return (float)(LOG_2_RECIPROCAL * log((double)v)); - } -} - -// C version of this function: -// int i = 0; -// int64_t cost = 0; -// const uint32_t* pop = &population[4]; -// const uint32_t* LoopEnd = &population[length]; -// while (pop != LoopEnd) { -// ++i; -// cost += i * *pop; -// cost += i * *(pop + 1); -// pop += 2; -// } -// return (double)cost; -static double ExtraCost(const uint32_t* const population, int length) { - int i, temp0, temp1; - const uint32_t* pop = &population[4]; - const uint32_t* const LoopEnd = &population[length]; - - __asm__ volatile( - "mult $zero, $zero \n\t" - "xor %[i], %[i], %[i] \n\t" - "beq %[pop], %[LoopEnd], 2f \n\t" - "1: \n\t" - "lw %[temp0], 0(%[pop]) \n\t" - "lw %[temp1], 4(%[pop]) \n\t" - "addiu %[i], %[i], 1 \n\t" - "addiu %[pop], %[pop], 8 \n\t" - "madd %[i], %[temp0] \n\t" - "madd %[i], %[temp1] \n\t" - "bne %[pop], %[LoopEnd], 1b \n\t" - "2: \n\t" - "mfhi %[temp0] \n\t" - "mflo %[temp1] \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), - [i]"=&r"(i), [pop]"+r"(pop) - : [LoopEnd]"r"(LoopEnd) - : "memory", "hi", "lo" - ); - - return (double)((int64_t)temp0 << 32 | temp1); -} - -// C version of this function: -// int i = 0; -// int64_t cost = 0; -// const uint32_t* pX = &X[4]; -// const uint32_t* pY = &Y[4]; -// const uint32_t* LoopEnd = &X[length]; -// while (pX != LoopEnd) { -// const uint32_t xy0 = *pX + *pY; -// const uint32_t xy1 = *(pX + 1) + *(pY + 1); -// ++i; -// cost += i * xy0; -// cost += i * xy1; -// pX += 2; -// pY += 2; -// } -// return (double)cost; -static double ExtraCostCombined(const uint32_t* const X, - const uint32_t* const Y, int length) { - int i, temp0, temp1, temp2, temp3; - const uint32_t* pX = &X[4]; - const uint32_t* pY = &Y[4]; - const uint32_t* const LoopEnd = &X[length]; - - __asm__ volatile( - "mult $zero, $zero \n\t" - "xor %[i], %[i], %[i] \n\t" - "beq %[pX], %[LoopEnd], 2f \n\t" - "1: \n\t" - "lw %[temp0], 0(%[pX]) \n\t" - "lw %[temp1], 0(%[pY]) \n\t" - "lw %[temp2], 4(%[pX]) \n\t" - "lw %[temp3], 4(%[pY]) \n\t" - "addiu %[i], %[i], 1 \n\t" - "addu %[temp0], %[temp0], %[temp1] \n\t" - "addu %[temp2], %[temp2], %[temp3] \n\t" - "addiu %[pX], %[pX], 8 \n\t" - "addiu %[pY], %[pY], 8 \n\t" - "madd %[i], %[temp0] \n\t" - "madd %[i], %[temp2] \n\t" - "bne %[pX], %[LoopEnd], 1b \n\t" - "2: \n\t" - "mfhi %[temp0] \n\t" - "mflo %[temp1] \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), - [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), - [i]"=&r"(i), [pX]"+r"(pX), [pY]"+r"(pY) - : [LoopEnd]"r"(LoopEnd) - : "memory", "hi", "lo" - ); - - return (double)((int64_t)temp0 << 32 | temp1); -} - -#define HUFFMAN_COST_PASS \ - __asm__ volatile( \ - "sll %[temp1], %[temp0], 3 \n\t" \ - "addiu %[temp3], %[streak], -3 \n\t" \ - "addu %[temp2], %[pstreaks], %[temp1] \n\t" \ - "blez %[temp3], 1f \n\t" \ - "srl %[temp1], %[temp1], 1 \n\t" \ - "addu %[temp3], %[pcnts], %[temp1] \n\t" \ - "lw %[temp0], 4(%[temp2]) \n\t" \ - "lw %[temp1], 0(%[temp3]) \n\t" \ - "addu %[temp0], %[temp0], %[streak] \n\t" \ - "addiu %[temp1], %[temp1], 1 \n\t" \ - "sw %[temp0], 4(%[temp2]) \n\t" \ - "sw %[temp1], 0(%[temp3]) \n\t" \ - "b 2f \n\t" \ - "1: \n\t" \ - "lw %[temp0], 0(%[temp2]) \n\t" \ - "addu %[temp0], %[temp0], %[streak] \n\t" \ - "sw %[temp0], 0(%[temp2]) \n\t" \ - "2: \n\t" \ - : [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), \ - [temp3]"=&r"(temp3), [temp0]"+r"(temp0) \ - : [pstreaks]"r"(pstreaks), [pcnts]"r"(pcnts), \ - [streak]"r"(streak) \ - : "memory" \ - ); - -// Returns the various RLE counts -static WEBP_INLINE void GetEntropyUnrefinedHelper( - uint32_t val, int i, uint32_t* const val_prev, int* const i_prev, - VP8LBitEntropy* const bit_entropy, VP8LStreaks* const stats) { - int* const pstreaks = &stats->streaks[0][0]; - int* const pcnts = &stats->counts[0]; - int temp0, temp1, temp2, temp3; - const int streak = i - *i_prev; - - // Gather info for the bit entropy. - if (*val_prev != 0) { - bit_entropy->sum += (*val_prev) * streak; - bit_entropy->nonzeros += streak; - bit_entropy->nonzero_code = *i_prev; - bit_entropy->entropy -= VP8LFastSLog2(*val_prev) * streak; - if (bit_entropy->max_val < *val_prev) { - bit_entropy->max_val = *val_prev; - } - } - - // Gather info for the Huffman cost. - temp0 = (*val_prev != 0); - HUFFMAN_COST_PASS - - *val_prev = val; - *i_prev = i; -} - -#define ASM_START \ - __asm__ volatile( \ - ".set push \n\t" \ - ".set at \n\t" \ - ".set macro \n\t" \ - "1: \n\t" - -// P2 = P0 + P1 -// A..D - offsets -// E - temp variable to tell macro -// if pointer should be incremented -// literal_ and successive histograms could be unaligned -// so we must use ulw and usw -#define ADD_TO_OUT(A, B, C, D, E, P0, P1, P2) \ - "ulw %[temp0], " #A "(%[" #P0 "]) \n\t" \ - "ulw %[temp1], " #B "(%[" #P0 "]) \n\t" \ - "ulw %[temp2], " #C "(%[" #P0 "]) \n\t" \ - "ulw %[temp3], " #D "(%[" #P0 "]) \n\t" \ - "ulw %[temp4], " #A "(%[" #P1 "]) \n\t" \ - "ulw %[temp5], " #B "(%[" #P1 "]) \n\t" \ - "ulw %[temp6], " #C "(%[" #P1 "]) \n\t" \ - "ulw %[temp7], " #D "(%[" #P1 "]) \n\t" \ - "addu %[temp4], %[temp4], %[temp0] \n\t" \ - "addu %[temp5], %[temp5], %[temp1] \n\t" \ - "addu %[temp6], %[temp6], %[temp2] \n\t" \ - "addu %[temp7], %[temp7], %[temp3] \n\t" \ - "addiu %[" #P0 "], %[" #P0 "], 16 \n\t" \ - ".if " #E " == 1 \n\t" \ - "addiu %[" #P1 "], %[" #P1 "], 16 \n\t" \ - ".endif \n\t" \ - "usw %[temp4], " #A "(%[" #P2 "]) \n\t" \ - "usw %[temp5], " #B "(%[" #P2 "]) \n\t" \ - "usw %[temp6], " #C "(%[" #P2 "]) \n\t" \ - "usw %[temp7], " #D "(%[" #P2 "]) \n\t" \ - "addiu %[" #P2 "], %[" #P2 "], 16 \n\t" \ - "bne %[" #P0 "], %[LoopEnd], 1b \n\t" \ - ".set pop \n\t" \ - -#define ASM_END_COMMON_0 \ - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), \ - [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), \ - [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), \ - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), \ - [pa]"+r"(pa), [pout]"+r"(pout) - -#define ASM_END_COMMON_1 \ - : [LoopEnd]"r"(LoopEnd) \ - : "memory", "at" \ - ); - -#define ASM_END_0 \ - ASM_END_COMMON_0 \ - , [pb]"+r"(pb) \ - ASM_END_COMMON_1 - -#define ASM_END_1 \ - ASM_END_COMMON_0 \ - ASM_END_COMMON_1 - -#define ADD_VECTOR(A, B, OUT, SIZE, EXTRA_SIZE) do { \ - const uint32_t* pa = (const uint32_t*)(A); \ - const uint32_t* pb = (const uint32_t*)(B); \ - uint32_t* pout = (uint32_t*)(OUT); \ - const uint32_t* const LoopEnd = pa + (SIZE); \ - assert((SIZE) % 4 == 0); \ - ASM_START \ - ADD_TO_OUT(0, 4, 8, 12, 1, pa, pb, pout) \ - ASM_END_0 \ - if ((EXTRA_SIZE) > 0) { \ - const int last = (EXTRA_SIZE); \ - int i; \ - for (i = 0; i < last; ++i) pout[i] = pa[i] + pb[i]; \ - } \ -} while (0) - -#define ADD_VECTOR_EQ(A, OUT, SIZE, EXTRA_SIZE) do { \ - const uint32_t* pa = (const uint32_t*)(A); \ - uint32_t* pout = (uint32_t*)(OUT); \ - const uint32_t* const LoopEnd = pa + (SIZE); \ - assert((SIZE) % 4 == 0); \ - ASM_START \ - ADD_TO_OUT(0, 4, 8, 12, 0, pa, pout, pout) \ - ASM_END_1 \ - if ((EXTRA_SIZE) > 0) { \ - const int last = (EXTRA_SIZE); \ - int i; \ - for (i = 0; i < last; ++i) pout[i] += pa[i]; \ - } \ -} while (0) - -static void HistogramAdd(const VP8LHistogram* const a, - const VP8LHistogram* const b, - VP8LHistogram* const out) { - uint32_t temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7; - const int extra_cache_size = VP8LHistogramNumCodes(a->palette_code_bits_) - - (NUM_LITERAL_CODES + NUM_LENGTH_CODES); - assert(a->palette_code_bits_ == b->palette_code_bits_); - - if (b != out) { - ADD_VECTOR(a->literal_, b->literal_, out->literal_, - NUM_LITERAL_CODES + NUM_LENGTH_CODES, extra_cache_size); - ADD_VECTOR(a->distance_, b->distance_, out->distance_, - NUM_DISTANCE_CODES, 0); - ADD_VECTOR(a->red_, b->red_, out->red_, NUM_LITERAL_CODES, 0); - ADD_VECTOR(a->blue_, b->blue_, out->blue_, NUM_LITERAL_CODES, 0); - ADD_VECTOR(a->alpha_, b->alpha_, out->alpha_, NUM_LITERAL_CODES, 0); - } else { - ADD_VECTOR_EQ(a->literal_, out->literal_, - NUM_LITERAL_CODES + NUM_LENGTH_CODES, extra_cache_size); - ADD_VECTOR_EQ(a->distance_, out->distance_, NUM_DISTANCE_CODES, 0); - ADD_VECTOR_EQ(a->red_, out->red_, NUM_LITERAL_CODES, 0); - ADD_VECTOR_EQ(a->blue_, out->blue_, NUM_LITERAL_CODES, 0); - ADD_VECTOR_EQ(a->alpha_, out->alpha_, NUM_LITERAL_CODES, 0); - } -} - -#undef ADD_VECTOR_EQ -#undef ADD_VECTOR -#undef ASM_END_1 -#undef ASM_END_0 -#undef ASM_END_COMMON_1 -#undef ASM_END_COMMON_0 -#undef ADD_TO_OUT -#undef ASM_START - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8LEncDspInitMIPS32(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8LEncDspInitMIPS32(void) { - VP8LFastSLog2Slow = FastSLog2Slow; - VP8LFastLog2Slow = FastLog2Slow; - VP8LExtraCost = ExtraCost; - VP8LExtraCostCombined = ExtraCostCombined; - VP8LGetEntropyUnrefinedHelper = GetEntropyUnrefinedHelper; - VP8LHistogramAdd = HistogramAdd; -} - -#else // !WEBP_USE_MIPS32 - -WEBP_DSP_INIT_STUB(VP8LEncDspInitMIPS32) - -#endif // WEBP_USE_MIPS32 diff --git a/drivers/webp/dsp/lossless_enc_mips_dsp_r2.c b/drivers/webp/dsp/lossless_enc_mips_dsp_r2.c deleted file mode 100644 index 0abf3c4f36..0000000000 --- a/drivers/webp/dsp/lossless_enc_mips_dsp_r2.c +++ /dev/null @@ -1,275 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Image transform methods for lossless encoder. -// -// Author(s): Djordje Pesut (djordje.pesut@imgtec.com) -// Jovan Zelincevic (jovan.zelincevic@imgtec.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_MIPS_DSP_R2) - -#include "./lossless.h" - -static void SubtractGreenFromBlueAndRed(uint32_t* argb_data, - int num_pixels) { - uint32_t temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7; - uint32_t* const p_loop1_end = argb_data + (num_pixels & ~3); - uint32_t* const p_loop2_end = p_loop1_end + (num_pixels & 3); - __asm__ volatile ( - ".set push \n\t" - ".set noreorder \n\t" - "beq %[argb_data], %[p_loop1_end], 3f \n\t" - " nop \n\t" - "0: \n\t" - "lw %[temp0], 0(%[argb_data]) \n\t" - "lw %[temp1], 4(%[argb_data]) \n\t" - "lw %[temp2], 8(%[argb_data]) \n\t" - "lw %[temp3], 12(%[argb_data]) \n\t" - "ext %[temp4], %[temp0], 8, 8 \n\t" - "ext %[temp5], %[temp1], 8, 8 \n\t" - "ext %[temp6], %[temp2], 8, 8 \n\t" - "ext %[temp7], %[temp3], 8, 8 \n\t" - "addiu %[argb_data], %[argb_data], 16 \n\t" - "replv.ph %[temp4], %[temp4] \n\t" - "replv.ph %[temp5], %[temp5] \n\t" - "replv.ph %[temp6], %[temp6] \n\t" - "replv.ph %[temp7], %[temp7] \n\t" - "subu.qb %[temp0], %[temp0], %[temp4] \n\t" - "subu.qb %[temp1], %[temp1], %[temp5] \n\t" - "subu.qb %[temp2], %[temp2], %[temp6] \n\t" - "subu.qb %[temp3], %[temp3], %[temp7] \n\t" - "sw %[temp0], -16(%[argb_data]) \n\t" - "sw %[temp1], -12(%[argb_data]) \n\t" - "sw %[temp2], -8(%[argb_data]) \n\t" - "bne %[argb_data], %[p_loop1_end], 0b \n\t" - " sw %[temp3], -4(%[argb_data]) \n\t" - "3: \n\t" - "beq %[argb_data], %[p_loop2_end], 2f \n\t" - " nop \n\t" - "1: \n\t" - "lw %[temp0], 0(%[argb_data]) \n\t" - "addiu %[argb_data], %[argb_data], 4 \n\t" - "ext %[temp4], %[temp0], 8, 8 \n\t" - "replv.ph %[temp4], %[temp4] \n\t" - "subu.qb %[temp0], %[temp0], %[temp4] \n\t" - "bne %[argb_data], %[p_loop2_end], 1b \n\t" - " sw %[temp0], -4(%[argb_data]) \n\t" - "2: \n\t" - ".set pop \n\t" - : [argb_data]"+&r"(argb_data), [temp0]"=&r"(temp0), - [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), - [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [temp6]"=&r"(temp6), - [temp7]"=&r"(temp7) - : [p_loop1_end]"r"(p_loop1_end), [p_loop2_end]"r"(p_loop2_end) - : "memory" - ); -} - -static WEBP_INLINE uint32_t ColorTransformDelta(int8_t color_pred, - int8_t color) { - return (uint32_t)((int)(color_pred) * color) >> 5; -} - -static void TransformColor(const VP8LMultipliers* const m, uint32_t* data, - int num_pixels) { - int temp0, temp1, temp2, temp3, temp4, temp5; - uint32_t argb, argb1, new_red, new_red1; - const uint32_t G_to_R = m->green_to_red_; - const uint32_t G_to_B = m->green_to_blue_; - const uint32_t R_to_B = m->red_to_blue_; - uint32_t* const p_loop_end = data + (num_pixels & ~1); - __asm__ volatile ( - ".set push \n\t" - ".set noreorder \n\t" - "beq %[data], %[p_loop_end], 1f \n\t" - " nop \n\t" - "replv.ph %[temp0], %[G_to_R] \n\t" - "replv.ph %[temp1], %[G_to_B] \n\t" - "replv.ph %[temp2], %[R_to_B] \n\t" - "shll.ph %[temp0], %[temp0], 8 \n\t" - "shll.ph %[temp1], %[temp1], 8 \n\t" - "shll.ph %[temp2], %[temp2], 8 \n\t" - "shra.ph %[temp0], %[temp0], 8 \n\t" - "shra.ph %[temp1], %[temp1], 8 \n\t" - "shra.ph %[temp2], %[temp2], 8 \n\t" - "0: \n\t" - "lw %[argb], 0(%[data]) \n\t" - "lw %[argb1], 4(%[data]) \n\t" - "lhu %[new_red], 2(%[data]) \n\t" - "lhu %[new_red1], 6(%[data]) \n\t" - "precrq.qb.ph %[temp3], %[argb], %[argb1] \n\t" - "precr.qb.ph %[temp4], %[argb], %[argb1] \n\t" - "preceu.ph.qbra %[temp3], %[temp3] \n\t" - "preceu.ph.qbla %[temp4], %[temp4] \n\t" - "shll.ph %[temp3], %[temp3], 8 \n\t" - "shll.ph %[temp4], %[temp4], 8 \n\t" - "shra.ph %[temp3], %[temp3], 8 \n\t" - "shra.ph %[temp4], %[temp4], 8 \n\t" - "mul.ph %[temp5], %[temp3], %[temp0] \n\t" - "mul.ph %[temp3], %[temp3], %[temp1] \n\t" - "mul.ph %[temp4], %[temp4], %[temp2] \n\t" - "addiu %[data], %[data], 8 \n\t" - "ins %[new_red1], %[new_red], 16, 16 \n\t" - "ins %[argb1], %[argb], 16, 16 \n\t" - "shra.ph %[temp5], %[temp5], 5 \n\t" - "shra.ph %[temp3], %[temp3], 5 \n\t" - "shra.ph %[temp4], %[temp4], 5 \n\t" - "subu.ph %[new_red1], %[new_red1], %[temp5] \n\t" - "subu.ph %[argb1], %[argb1], %[temp3] \n\t" - "preceu.ph.qbra %[temp5], %[new_red1] \n\t" - "subu.ph %[argb1], %[argb1], %[temp4] \n\t" - "preceu.ph.qbra %[temp3], %[argb1] \n\t" - "sb %[temp5], -2(%[data]) \n\t" - "sb %[temp3], -4(%[data]) \n\t" - "sra %[temp5], %[temp5], 16 \n\t" - "sra %[temp3], %[temp3], 16 \n\t" - "sb %[temp5], -6(%[data]) \n\t" - "bne %[data], %[p_loop_end], 0b \n\t" - " sb %[temp3], -8(%[data]) \n\t" - "1: \n\t" - ".set pop \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [new_red1]"=&r"(new_red1), [new_red]"=&r"(new_red), - [argb]"=&r"(argb), [argb1]"=&r"(argb1), [data]"+&r"(data) - : [G_to_R]"r"(G_to_R), [R_to_B]"r"(R_to_B), - [G_to_B]"r"(G_to_B), [p_loop_end]"r"(p_loop_end) - : "memory", "hi", "lo" - ); - - if (num_pixels & 1) { - const uint32_t argb_ = data[0]; - const uint32_t green = argb_ >> 8; - const uint32_t red = argb_ >> 16; - uint32_t new_blue = argb_; - new_red = red; - new_red -= ColorTransformDelta(m->green_to_red_, green); - new_red &= 0xff; - new_blue -= ColorTransformDelta(m->green_to_blue_, green); - new_blue -= ColorTransformDelta(m->red_to_blue_, red); - new_blue &= 0xff; - data[0] = (argb_ & 0xff00ff00u) | (new_red << 16) | (new_blue); - } -} - -static WEBP_INLINE uint8_t TransformColorBlue(uint8_t green_to_blue, - uint8_t red_to_blue, - uint32_t argb) { - const uint32_t green = argb >> 8; - const uint32_t red = argb >> 16; - uint8_t new_blue = argb; - new_blue -= ColorTransformDelta(green_to_blue, green); - new_blue -= ColorTransformDelta(red_to_blue, red); - return (new_blue & 0xff); -} - -static void CollectColorBlueTransforms(const uint32_t* argb, int stride, - int tile_width, int tile_height, - int green_to_blue, int red_to_blue, - int histo[]) { - const int rtb = (red_to_blue << 16) | (red_to_blue & 0xffff); - const int gtb = (green_to_blue << 16) | (green_to_blue & 0xffff); - const uint32_t mask = 0xff00ffu; - while (tile_height-- > 0) { - int x; - const uint32_t* p_argb = argb; - argb += stride; - for (x = 0; x < (tile_width >> 1); ++x) { - int temp0, temp1, temp2, temp3, temp4, temp5, temp6; - __asm__ volatile ( - "lw %[temp0], 0(%[p_argb]) \n\t" - "lw %[temp1], 4(%[p_argb]) \n\t" - "precr.qb.ph %[temp2], %[temp0], %[temp1] \n\t" - "ins %[temp1], %[temp0], 16, 16 \n\t" - "shra.ph %[temp2], %[temp2], 8 \n\t" - "shra.ph %[temp3], %[temp1], 8 \n\t" - "mul.ph %[temp5], %[temp2], %[rtb] \n\t" - "mul.ph %[temp6], %[temp3], %[gtb] \n\t" - "and %[temp4], %[temp1], %[mask] \n\t" - "addiu %[p_argb], %[p_argb], 8 \n\t" - "shra.ph %[temp5], %[temp5], 5 \n\t" - "shra.ph %[temp6], %[temp6], 5 \n\t" - "subu.qb %[temp2], %[temp4], %[temp5] \n\t" - "subu.qb %[temp2], %[temp2], %[temp6] \n\t" - : [p_argb]"+&r"(p_argb), [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), - [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), - [temp5]"=&r"(temp5), [temp6]"=&r"(temp6) - : [rtb]"r"(rtb), [gtb]"r"(gtb), [mask]"r"(mask) - : "memory", "hi", "lo" - ); - ++histo[(uint8_t)(temp2 >> 16)]; - ++histo[(uint8_t)temp2]; - } - if (tile_width & 1) { - ++histo[TransformColorBlue(green_to_blue, red_to_blue, *p_argb)]; - } - } -} - -static WEBP_INLINE uint8_t TransformColorRed(uint8_t green_to_red, - uint32_t argb) { - const uint32_t green = argb >> 8; - uint32_t new_red = argb >> 16; - new_red -= ColorTransformDelta(green_to_red, green); - return (new_red & 0xff); -} - -static void CollectColorRedTransforms(const uint32_t* argb, int stride, - int tile_width, int tile_height, - int green_to_red, int histo[]) { - const int gtr = (green_to_red << 16) | (green_to_red & 0xffff); - while (tile_height-- > 0) { - int x; - const uint32_t* p_argb = argb; - argb += stride; - for (x = 0; x < (tile_width >> 1); ++x) { - int temp0, temp1, temp2, temp3, temp4; - __asm__ volatile ( - "lw %[temp0], 0(%[p_argb]) \n\t" - "lw %[temp1], 4(%[p_argb]) \n\t" - "precrq.ph.w %[temp4], %[temp0], %[temp1] \n\t" - "ins %[temp1], %[temp0], 16, 16 \n\t" - "shra.ph %[temp3], %[temp1], 8 \n\t" - "mul.ph %[temp2], %[temp3], %[gtr] \n\t" - "addiu %[p_argb], %[p_argb], 8 \n\t" - "shra.ph %[temp2], %[temp2], 5 \n\t" - "subu.qb %[temp2], %[temp4], %[temp2] \n\t" - : [p_argb]"+&r"(p_argb), [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), - [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), [temp4]"=&r"(temp4) - : [gtr]"r"(gtr) - : "memory", "hi", "lo" - ); - ++histo[(uint8_t)(temp2 >> 16)]; - ++histo[(uint8_t)temp2]; - } - if (tile_width & 1) { - ++histo[TransformColorRed(green_to_red, *p_argb)]; - } - } -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8LEncDspInitMIPSdspR2(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8LEncDspInitMIPSdspR2(void) { - VP8LSubtractGreenFromBlueAndRed = SubtractGreenFromBlueAndRed; - VP8LTransformColor = TransformColor; - VP8LCollectColorBlueTransforms = CollectColorBlueTransforms; - VP8LCollectColorRedTransforms = CollectColorRedTransforms; -} - -#else // !WEBP_USE_MIPS_DSP_R2 - -WEBP_DSP_INIT_STUB(VP8LEncDspInitMIPSdspR2) - -#endif // WEBP_USE_MIPS_DSP_R2 diff --git a/drivers/webp/dsp/lossless_enc_neon.c b/drivers/webp/dsp/lossless_enc_neon.c deleted file mode 100644 index 4c56f2594b..0000000000 --- a/drivers/webp/dsp/lossless_enc_neon.c +++ /dev/null @@ -1,143 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// NEON variant of methods for lossless encoder -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_NEON) - -#include <arm_neon.h> - -#include "./lossless.h" -#include "./neon.h" - -//------------------------------------------------------------------------------ -// Subtract-Green Transform - -// vtbl?_u8 are marked unavailable for iOS arm64 with Xcode < 6.3, use -// non-standard versions there. -#if defined(__APPLE__) && defined(__aarch64__) && \ - defined(__apple_build_version__) && (__apple_build_version__< 6020037) -#define USE_VTBLQ -#endif - -#ifdef USE_VTBLQ -// 255 = byte will be zeroed -static const uint8_t kGreenShuffle[16] = { - 1, 255, 1, 255, 5, 255, 5, 255, 9, 255, 9, 255, 13, 255, 13, 255 -}; - -static WEBP_INLINE uint8x16_t DoGreenShuffle(const uint8x16_t argb, - const uint8x16_t shuffle) { - return vcombine_u8(vtbl1q_u8(argb, vget_low_u8(shuffle)), - vtbl1q_u8(argb, vget_high_u8(shuffle))); -} -#else // !USE_VTBLQ -// 255 = byte will be zeroed -static const uint8_t kGreenShuffle[8] = { 1, 255, 1, 255, 5, 255, 5, 255 }; - -static WEBP_INLINE uint8x16_t DoGreenShuffle(const uint8x16_t argb, - const uint8x8_t shuffle) { - return vcombine_u8(vtbl1_u8(vget_low_u8(argb), shuffle), - vtbl1_u8(vget_high_u8(argb), shuffle)); -} -#endif // USE_VTBLQ - -static void SubtractGreenFromBlueAndRed(uint32_t* argb_data, int num_pixels) { - const uint32_t* const end = argb_data + (num_pixels & ~3); -#ifdef USE_VTBLQ - const uint8x16_t shuffle = vld1q_u8(kGreenShuffle); -#else - const uint8x8_t shuffle = vld1_u8(kGreenShuffle); -#endif - for (; argb_data < end; argb_data += 4) { - const uint8x16_t argb = vld1q_u8((uint8_t*)argb_data); - const uint8x16_t greens = DoGreenShuffle(argb, shuffle); - vst1q_u8((uint8_t*)argb_data, vsubq_u8(argb, greens)); - } - // fallthrough and finish off with plain-C - VP8LSubtractGreenFromBlueAndRed_C(argb_data, num_pixels & 3); -} - -//------------------------------------------------------------------------------ -// Color Transform - -static void TransformColor(const VP8LMultipliers* const m, - uint32_t* argb_data, int num_pixels) { - // sign-extended multiplying constants, pre-shifted by 6. -#define CST(X) (((int16_t)(m->X << 8)) >> 6) - const int16_t rb[8] = { - CST(green_to_blue_), CST(green_to_red_), - CST(green_to_blue_), CST(green_to_red_), - CST(green_to_blue_), CST(green_to_red_), - CST(green_to_blue_), CST(green_to_red_) - }; - const int16x8_t mults_rb = vld1q_s16(rb); - const int16_t b2[8] = { - 0, CST(red_to_blue_), 0, CST(red_to_blue_), - 0, CST(red_to_blue_), 0, CST(red_to_blue_), - }; - const int16x8_t mults_b2 = vld1q_s16(b2); -#undef CST -#ifdef USE_VTBLQ - static const uint8_t kg0g0[16] = { - 255, 1, 255, 1, 255, 5, 255, 5, 255, 9, 255, 9, 255, 13, 255, 13 - }; - const uint8x16_t shuffle = vld1q_u8(kg0g0); -#else - static const uint8_t k0g0g[8] = { 255, 1, 255, 1, 255, 5, 255, 5 }; - const uint8x8_t shuffle = vld1_u8(k0g0g); -#endif - const uint32x4_t mask_rb = vdupq_n_u32(0x00ff00ffu); // red-blue masks - int i; - for (i = 0; i + 4 <= num_pixels; i += 4) { - const uint8x16_t in = vld1q_u8((uint8_t*)(argb_data + i)); - // 0 g 0 g - const uint8x16_t greens = DoGreenShuffle(in, shuffle); - // x dr x db1 - const int16x8_t A = vqdmulhq_s16(vreinterpretq_s16_u8(greens), mults_rb); - // r 0 b 0 - const int16x8_t B = vshlq_n_s16(vreinterpretq_s16_u8(in), 8); - // x db2 0 0 - const int16x8_t C = vqdmulhq_s16(B, mults_b2); - // 0 0 x db2 - const uint32x4_t D = vshrq_n_u32(vreinterpretq_u32_s16(C), 16); - // x dr x db - const int8x16_t E = vaddq_s8(vreinterpretq_s8_u32(D), - vreinterpretq_s8_s16(A)); - // 0 dr 0 db - const uint32x4_t F = vandq_u32(vreinterpretq_u32_s8(E), mask_rb); - const int8x16_t out = vsubq_s8(vreinterpretq_s8_u8(in), - vreinterpretq_s8_u32(F)); - vst1q_s8((int8_t*)(argb_data + i), out); - } - // fallthrough and finish off with plain-C - VP8LTransformColor_C(m, argb_data + i, num_pixels - i); -} - -#undef USE_VTBLQ - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8LEncDspInitNEON(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8LEncDspInitNEON(void) { - VP8LSubtractGreenFromBlueAndRed = SubtractGreenFromBlueAndRed; - VP8LTransformColor = TransformColor; -} - -#else // !WEBP_USE_NEON - -WEBP_DSP_INIT_STUB(VP8LEncDspInitNEON) - -#endif // WEBP_USE_NEON diff --git a/drivers/webp/dsp/lossless_enc_sse2.c b/drivers/webp/dsp/lossless_enc_sse2.c deleted file mode 100644 index 7c894e7ca4..0000000000 --- a/drivers/webp/dsp/lossless_enc_sse2.c +++ /dev/null @@ -1,397 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// SSE2 variant of methods for lossless encoder -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_SSE2) -#include <assert.h> -#include <emmintrin.h> -#include "./lossless.h" - -// For sign-extended multiplying constants, pre-shifted by 5: -#define CST_5b(X) (((int16_t)((uint16_t)X << 8)) >> 5) - -//------------------------------------------------------------------------------ -// Subtract-Green Transform - -static void SubtractGreenFromBlueAndRed(uint32_t* argb_data, int num_pixels) { - int i; - for (i = 0; i + 4 <= num_pixels; i += 4) { - const __m128i in = _mm_loadu_si128((__m128i*)&argb_data[i]); // argb - const __m128i A = _mm_srli_epi16(in, 8); // 0 a 0 g - const __m128i B = _mm_shufflelo_epi16(A, _MM_SHUFFLE(2, 2, 0, 0)); - const __m128i C = _mm_shufflehi_epi16(B, _MM_SHUFFLE(2, 2, 0, 0)); // 0g0g - const __m128i out = _mm_sub_epi8(in, C); - _mm_storeu_si128((__m128i*)&argb_data[i], out); - } - // fallthrough and finish off with plain-C - VP8LSubtractGreenFromBlueAndRed_C(argb_data + i, num_pixels - i); -} - -//------------------------------------------------------------------------------ -// Color Transform - -static void TransformColor(const VP8LMultipliers* const m, - uint32_t* argb_data, int num_pixels) { - const __m128i mults_rb = _mm_set_epi16( - CST_5b(m->green_to_red_), CST_5b(m->green_to_blue_), - CST_5b(m->green_to_red_), CST_5b(m->green_to_blue_), - CST_5b(m->green_to_red_), CST_5b(m->green_to_blue_), - CST_5b(m->green_to_red_), CST_5b(m->green_to_blue_)); - const __m128i mults_b2 = _mm_set_epi16( - CST_5b(m->red_to_blue_), 0, CST_5b(m->red_to_blue_), 0, - CST_5b(m->red_to_blue_), 0, CST_5b(m->red_to_blue_), 0); - const __m128i mask_ag = _mm_set1_epi32(0xff00ff00); // alpha-green masks - const __m128i mask_rb = _mm_set1_epi32(0x00ff00ff); // red-blue masks - int i; - for (i = 0; i + 4 <= num_pixels; i += 4) { - const __m128i in = _mm_loadu_si128((__m128i*)&argb_data[i]); // argb - const __m128i A = _mm_and_si128(in, mask_ag); // a 0 g 0 - const __m128i B = _mm_shufflelo_epi16(A, _MM_SHUFFLE(2, 2, 0, 0)); - const __m128i C = _mm_shufflehi_epi16(B, _MM_SHUFFLE(2, 2, 0, 0)); // g0g0 - const __m128i D = _mm_mulhi_epi16(C, mults_rb); // x dr x db1 - const __m128i E = _mm_slli_epi16(in, 8); // r 0 b 0 - const __m128i F = _mm_mulhi_epi16(E, mults_b2); // x db2 0 0 - const __m128i G = _mm_srli_epi32(F, 16); // 0 0 x db2 - const __m128i H = _mm_add_epi8(G, D); // x dr x db - const __m128i I = _mm_and_si128(H, mask_rb); // 0 dr 0 db - const __m128i out = _mm_sub_epi8(in, I); - _mm_storeu_si128((__m128i*)&argb_data[i], out); - } - // fallthrough and finish off with plain-C - VP8LTransformColor_C(m, argb_data + i, num_pixels - i); -} - -//------------------------------------------------------------------------------ -#define SPAN 8 -static void CollectColorBlueTransforms(const uint32_t* argb, int stride, - int tile_width, int tile_height, - int green_to_blue, int red_to_blue, - int histo[]) { - const __m128i mults_r = _mm_set_epi16( - CST_5b(red_to_blue), 0, CST_5b(red_to_blue), 0, - CST_5b(red_to_blue), 0, CST_5b(red_to_blue), 0); - const __m128i mults_g = _mm_set_epi16( - 0, CST_5b(green_to_blue), 0, CST_5b(green_to_blue), - 0, CST_5b(green_to_blue), 0, CST_5b(green_to_blue)); - const __m128i mask_g = _mm_set1_epi32(0x00ff00); // green mask - const __m128i mask_b = _mm_set1_epi32(0x0000ff); // blue mask - int y; - for (y = 0; y < tile_height; ++y) { - const uint32_t* const src = argb + y * stride; - int i, x; - for (x = 0; x + SPAN <= tile_width; x += SPAN) { - uint16_t values[SPAN]; - const __m128i in0 = _mm_loadu_si128((__m128i*)&src[x + 0]); - const __m128i in1 = _mm_loadu_si128((__m128i*)&src[x + SPAN / 2]); - const __m128i A0 = _mm_slli_epi16(in0, 8); // r 0 | b 0 - const __m128i A1 = _mm_slli_epi16(in1, 8); - const __m128i B0 = _mm_and_si128(in0, mask_g); // 0 0 | g 0 - const __m128i B1 = _mm_and_si128(in1, mask_g); - const __m128i C0 = _mm_mulhi_epi16(A0, mults_r); // x db | 0 0 - const __m128i C1 = _mm_mulhi_epi16(A1, mults_r); - const __m128i D0 = _mm_mulhi_epi16(B0, mults_g); // 0 0 | x db - const __m128i D1 = _mm_mulhi_epi16(B1, mults_g); - const __m128i E0 = _mm_sub_epi8(in0, D0); // x x | x b' - const __m128i E1 = _mm_sub_epi8(in1, D1); - const __m128i F0 = _mm_srli_epi32(C0, 16); // 0 0 | x db - const __m128i F1 = _mm_srli_epi32(C1, 16); - const __m128i G0 = _mm_sub_epi8(E0, F0); // 0 0 | x b' - const __m128i G1 = _mm_sub_epi8(E1, F1); - const __m128i H0 = _mm_and_si128(G0, mask_b); // 0 0 | 0 b - const __m128i H1 = _mm_and_si128(G1, mask_b); - const __m128i I = _mm_packs_epi32(H0, H1); // 0 b' | 0 b' - _mm_storeu_si128((__m128i*)values, I); - for (i = 0; i < SPAN; ++i) ++histo[values[i]]; - } - } - { - const int left_over = tile_width & (SPAN - 1); - if (left_over > 0) { - VP8LCollectColorBlueTransforms_C(argb + tile_width - left_over, stride, - left_over, tile_height, - green_to_blue, red_to_blue, histo); - } - } -} - -static void CollectColorRedTransforms(const uint32_t* argb, int stride, - int tile_width, int tile_height, - int green_to_red, int histo[]) { - const __m128i mults_g = _mm_set_epi16( - 0, CST_5b(green_to_red), 0, CST_5b(green_to_red), - 0, CST_5b(green_to_red), 0, CST_5b(green_to_red)); - const __m128i mask_g = _mm_set1_epi32(0x00ff00); // green mask - const __m128i mask = _mm_set1_epi32(0xff); - - int y; - for (y = 0; y < tile_height; ++y) { - const uint32_t* const src = argb + y * stride; - int i, x; - for (x = 0; x + SPAN <= tile_width; x += SPAN) { - uint16_t values[SPAN]; - const __m128i in0 = _mm_loadu_si128((__m128i*)&src[x + 0]); - const __m128i in1 = _mm_loadu_si128((__m128i*)&src[x + SPAN / 2]); - const __m128i A0 = _mm_and_si128(in0, mask_g); // 0 0 | g 0 - const __m128i A1 = _mm_and_si128(in1, mask_g); - const __m128i B0 = _mm_srli_epi32(in0, 16); // 0 0 | x r - const __m128i B1 = _mm_srli_epi32(in1, 16); - const __m128i C0 = _mm_mulhi_epi16(A0, mults_g); // 0 0 | x dr - const __m128i C1 = _mm_mulhi_epi16(A1, mults_g); - const __m128i E0 = _mm_sub_epi8(B0, C0); // x x | x r' - const __m128i E1 = _mm_sub_epi8(B1, C1); - const __m128i F0 = _mm_and_si128(E0, mask); // 0 0 | 0 r' - const __m128i F1 = _mm_and_si128(E1, mask); - const __m128i I = _mm_packs_epi32(F0, F1); - _mm_storeu_si128((__m128i*)values, I); - for (i = 0; i < SPAN; ++i) ++histo[values[i]]; - } - } - { - const int left_over = tile_width & (SPAN - 1); - if (left_over > 0) { - VP8LCollectColorRedTransforms_C(argb + tile_width - left_over, stride, - left_over, tile_height, - green_to_red, histo); - } - } -} -#undef SPAN - -//------------------------------------------------------------------------------ - -#define LINE_SIZE 16 // 8 or 16 -static void AddVector(const uint32_t* a, const uint32_t* b, uint32_t* out, - int size) { - int i; - assert(size % LINE_SIZE == 0); - for (i = 0; i < size; i += LINE_SIZE) { - const __m128i a0 = _mm_loadu_si128((const __m128i*)&a[i + 0]); - const __m128i a1 = _mm_loadu_si128((const __m128i*)&a[i + 4]); -#if (LINE_SIZE == 16) - const __m128i a2 = _mm_loadu_si128((const __m128i*)&a[i + 8]); - const __m128i a3 = _mm_loadu_si128((const __m128i*)&a[i + 12]); -#endif - const __m128i b0 = _mm_loadu_si128((const __m128i*)&b[i + 0]); - const __m128i b1 = _mm_loadu_si128((const __m128i*)&b[i + 4]); -#if (LINE_SIZE == 16) - const __m128i b2 = _mm_loadu_si128((const __m128i*)&b[i + 8]); - const __m128i b3 = _mm_loadu_si128((const __m128i*)&b[i + 12]); -#endif - _mm_storeu_si128((__m128i*)&out[i + 0], _mm_add_epi32(a0, b0)); - _mm_storeu_si128((__m128i*)&out[i + 4], _mm_add_epi32(a1, b1)); -#if (LINE_SIZE == 16) - _mm_storeu_si128((__m128i*)&out[i + 8], _mm_add_epi32(a2, b2)); - _mm_storeu_si128((__m128i*)&out[i + 12], _mm_add_epi32(a3, b3)); -#endif - } -} - -static void AddVectorEq(const uint32_t* a, uint32_t* out, int size) { - int i; - assert(size % LINE_SIZE == 0); - for (i = 0; i < size; i += LINE_SIZE) { - const __m128i a0 = _mm_loadu_si128((const __m128i*)&a[i + 0]); - const __m128i a1 = _mm_loadu_si128((const __m128i*)&a[i + 4]); -#if (LINE_SIZE == 16) - const __m128i a2 = _mm_loadu_si128((const __m128i*)&a[i + 8]); - const __m128i a3 = _mm_loadu_si128((const __m128i*)&a[i + 12]); -#endif - const __m128i b0 = _mm_loadu_si128((const __m128i*)&out[i + 0]); - const __m128i b1 = _mm_loadu_si128((const __m128i*)&out[i + 4]); -#if (LINE_SIZE == 16) - const __m128i b2 = _mm_loadu_si128((const __m128i*)&out[i + 8]); - const __m128i b3 = _mm_loadu_si128((const __m128i*)&out[i + 12]); -#endif - _mm_storeu_si128((__m128i*)&out[i + 0], _mm_add_epi32(a0, b0)); - _mm_storeu_si128((__m128i*)&out[i + 4], _mm_add_epi32(a1, b1)); -#if (LINE_SIZE == 16) - _mm_storeu_si128((__m128i*)&out[i + 8], _mm_add_epi32(a2, b2)); - _mm_storeu_si128((__m128i*)&out[i + 12], _mm_add_epi32(a3, b3)); -#endif - } -} -#undef LINE_SIZE - -// Note we are adding uint32_t's as *signed* int32's (using _mm_add_epi32). But -// that's ok since the histogram values are less than 1<<28 (max picture size). -static void HistogramAdd(const VP8LHistogram* const a, - const VP8LHistogram* const b, - VP8LHistogram* const out) { - int i; - const int literal_size = VP8LHistogramNumCodes(a->palette_code_bits_); - assert(a->palette_code_bits_ == b->palette_code_bits_); - if (b != out) { - AddVector(a->literal_, b->literal_, out->literal_, NUM_LITERAL_CODES); - AddVector(a->red_, b->red_, out->red_, NUM_LITERAL_CODES); - AddVector(a->blue_, b->blue_, out->blue_, NUM_LITERAL_CODES); - AddVector(a->alpha_, b->alpha_, out->alpha_, NUM_LITERAL_CODES); - } else { - AddVectorEq(a->literal_, out->literal_, NUM_LITERAL_CODES); - AddVectorEq(a->red_, out->red_, NUM_LITERAL_CODES); - AddVectorEq(a->blue_, out->blue_, NUM_LITERAL_CODES); - AddVectorEq(a->alpha_, out->alpha_, NUM_LITERAL_CODES); - } - for (i = NUM_LITERAL_CODES; i < literal_size; ++i) { - out->literal_[i] = a->literal_[i] + b->literal_[i]; - } - for (i = 0; i < NUM_DISTANCE_CODES; ++i) { - out->distance_[i] = a->distance_[i] + b->distance_[i]; - } -} - -//------------------------------------------------------------------------------ -// Entropy - -// Checks whether the X or Y contribution is worth computing and adding. -// Used in loop unrolling. -#define ANALYZE_X_OR_Y(x_or_y, j) \ - do { \ - if (x_or_y[i + j] != 0) retval -= VP8LFastSLog2(x_or_y[i + j]); \ - } while (0) - -// Checks whether the X + Y contribution is worth computing and adding. -// Used in loop unrolling. -#define ANALYZE_XY(j) \ - do { \ - if (tmp[j] != 0) { \ - retval -= VP8LFastSLog2(tmp[j]); \ - ANALYZE_X_OR_Y(X, j); \ - } \ - } while (0) - -static float CombinedShannonEntropy(const int X[256], const int Y[256]) { - int i; - double retval = 0.; - int sumX, sumXY; - int32_t tmp[4]; - __m128i zero = _mm_setzero_si128(); - // Sums up X + Y, 4 ints at a time (and will merge it at the end for sumXY). - __m128i sumXY_128 = zero; - __m128i sumX_128 = zero; - - for (i = 0; i < 256; i += 4) { - const __m128i x = _mm_loadu_si128((const __m128i*)(X + i)); - const __m128i y = _mm_loadu_si128((const __m128i*)(Y + i)); - - // Check if any X is non-zero: this actually provides a speedup as X is - // usually sparse. - if (_mm_movemask_epi8(_mm_cmpeq_epi32(x, zero)) != 0xFFFF) { - const __m128i xy_128 = _mm_add_epi32(x, y); - sumXY_128 = _mm_add_epi32(sumXY_128, xy_128); - - sumX_128 = _mm_add_epi32(sumX_128, x); - - // Analyze the different X + Y. - _mm_storeu_si128((__m128i*)tmp, xy_128); - - ANALYZE_XY(0); - ANALYZE_XY(1); - ANALYZE_XY(2); - ANALYZE_XY(3); - } else { - // X is fully 0, so only deal with Y. - sumXY_128 = _mm_add_epi32(sumXY_128, y); - - ANALYZE_X_OR_Y(Y, 0); - ANALYZE_X_OR_Y(Y, 1); - ANALYZE_X_OR_Y(Y, 2); - ANALYZE_X_OR_Y(Y, 3); - } - } - - // Sum up sumX_128 to get sumX. - _mm_storeu_si128((__m128i*)tmp, sumX_128); - sumX = tmp[3] + tmp[2] + tmp[1] + tmp[0]; - - // Sum up sumXY_128 to get sumXY. - _mm_storeu_si128((__m128i*)tmp, sumXY_128); - sumXY = tmp[3] + tmp[2] + tmp[1] + tmp[0]; - - retval += VP8LFastSLog2(sumX) + VP8LFastSLog2(sumXY); - return (float)retval; -} -#undef ANALYZE_X_OR_Y -#undef ANALYZE_XY - -//------------------------------------------------------------------------------ - -static int VectorMismatch(const uint32_t* const array1, - const uint32_t* const array2, int length) { - int match_len; - - if (length >= 12) { - __m128i A0 = _mm_loadu_si128((const __m128i*)&array1[0]); - __m128i A1 = _mm_loadu_si128((const __m128i*)&array2[0]); - match_len = 0; - do { - // Loop unrolling and early load both provide a speedup of 10% for the - // current function. Also, max_limit can be MAX_LENGTH=4096 at most. - const __m128i cmpA = _mm_cmpeq_epi32(A0, A1); - const __m128i B0 = - _mm_loadu_si128((const __m128i*)&array1[match_len + 4]); - const __m128i B1 = - _mm_loadu_si128((const __m128i*)&array2[match_len + 4]); - if (_mm_movemask_epi8(cmpA) != 0xffff) break; - match_len += 4; - - { - const __m128i cmpB = _mm_cmpeq_epi32(B0, B1); - A0 = _mm_loadu_si128((const __m128i*)&array1[match_len + 4]); - A1 = _mm_loadu_si128((const __m128i*)&array2[match_len + 4]); - if (_mm_movemask_epi8(cmpB) != 0xffff) break; - match_len += 4; - } - } while (match_len + 12 < length); - } else { - match_len = 0; - // Unroll the potential first two loops. - if (length >= 4 && - _mm_movemask_epi8(_mm_cmpeq_epi32( - _mm_loadu_si128((const __m128i*)&array1[0]), - _mm_loadu_si128((const __m128i*)&array2[0]))) == 0xffff) { - match_len = 4; - if (length >= 8 && - _mm_movemask_epi8(_mm_cmpeq_epi32( - _mm_loadu_si128((const __m128i*)&array1[4]), - _mm_loadu_si128((const __m128i*)&array2[4]))) == 0xffff) - match_len = 8; - } - } - - while (match_len < length && array1[match_len] == array2[match_len]) { - ++match_len; - } - return match_len; -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8LEncDspInitSSE2(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8LEncDspInitSSE2(void) { - VP8LSubtractGreenFromBlueAndRed = SubtractGreenFromBlueAndRed; - VP8LTransformColor = TransformColor; - VP8LCollectColorBlueTransforms = CollectColorBlueTransforms; - VP8LCollectColorRedTransforms = CollectColorRedTransforms; - VP8LHistogramAdd = HistogramAdd; - VP8LCombinedShannonEntropy = CombinedShannonEntropy; - VP8LVectorMismatch = VectorMismatch; -} - -#else // !WEBP_USE_SSE2 - -WEBP_DSP_INIT_STUB(VP8LEncDspInitSSE2) - -#endif // WEBP_USE_SSE2 diff --git a/drivers/webp/dsp/lossless_enc_sse41.c b/drivers/webp/dsp/lossless_enc_sse41.c deleted file mode 100644 index 3e493198db..0000000000 --- a/drivers/webp/dsp/lossless_enc_sse41.c +++ /dev/null @@ -1,51 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// SSE4.1 variant of methods for lossless encoder -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_SSE41) -#include <assert.h> -#include <smmintrin.h> -#include "./lossless.h" - -//------------------------------------------------------------------------------ -// Subtract-Green Transform - -static void SubtractGreenFromBlueAndRed(uint32_t* argb_data, int num_pixels) { - int i; - const __m128i kCstShuffle = _mm_set_epi8(-1, 13, -1, 13, -1, 9, -1, 9, - -1, 5, -1, 5, -1, 1, -1, 1); - for (i = 0; i + 4 <= num_pixels; i += 4) { - const __m128i in = _mm_loadu_si128((__m128i*)&argb_data[i]); - const __m128i in_0g0g = _mm_shuffle_epi8(in, kCstShuffle); - const __m128i out = _mm_sub_epi8(in, in_0g0g); - _mm_storeu_si128((__m128i*)&argb_data[i], out); - } - // fallthrough and finish off with plain-C - VP8LSubtractGreenFromBlueAndRed_C(argb_data + i, num_pixels - i); -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8LEncDspInitSSE41(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8LEncDspInitSSE41(void) { - VP8LSubtractGreenFromBlueAndRed = SubtractGreenFromBlueAndRed; -} - -#else // !WEBP_USE_SSE41 - -WEBP_DSP_INIT_STUB(VP8LEncDspInitSSE41) - -#endif // WEBP_USE_SSE41 diff --git a/drivers/webp/dsp/lossless_mips_dsp_r2.c b/drivers/webp/dsp/lossless_mips_dsp_r2.c deleted file mode 100644 index 90aed7f151..0000000000 --- a/drivers/webp/dsp/lossless_mips_dsp_r2.c +++ /dev/null @@ -1,680 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Image transforms and color space conversion methods for lossless decoder. -// -// Author(s): Djordje Pesut (djordje.pesut@imgtec.com) -// Jovan Zelincevic (jovan.zelincevic@imgtec.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_MIPS_DSP_R2) - -#include "./lossless.h" - -#define MAP_COLOR_FUNCS(FUNC_NAME, TYPE, GET_INDEX, GET_VALUE) \ -static void FUNC_NAME(const TYPE* src, \ - const uint32_t* const color_map, \ - TYPE* dst, int y_start, int y_end, \ - int width) { \ - int y; \ - for (y = y_start; y < y_end; ++y) { \ - int x; \ - for (x = 0; x < (width >> 2); ++x) { \ - int tmp1, tmp2, tmp3, tmp4; \ - __asm__ volatile ( \ - ".ifc " #TYPE ", uint8_t \n\t" \ - "lbu %[tmp1], 0(%[src]) \n\t" \ - "lbu %[tmp2], 1(%[src]) \n\t" \ - "lbu %[tmp3], 2(%[src]) \n\t" \ - "lbu %[tmp4], 3(%[src]) \n\t" \ - "addiu %[src], %[src], 4 \n\t" \ - ".endif \n\t" \ - ".ifc " #TYPE ", uint32_t \n\t" \ - "lw %[tmp1], 0(%[src]) \n\t" \ - "lw %[tmp2], 4(%[src]) \n\t" \ - "lw %[tmp3], 8(%[src]) \n\t" \ - "lw %[tmp4], 12(%[src]) \n\t" \ - "ext %[tmp1], %[tmp1], 8, 8 \n\t" \ - "ext %[tmp2], %[tmp2], 8, 8 \n\t" \ - "ext %[tmp3], %[tmp3], 8, 8 \n\t" \ - "ext %[tmp4], %[tmp4], 8, 8 \n\t" \ - "addiu %[src], %[src], 16 \n\t" \ - ".endif \n\t" \ - "sll %[tmp1], %[tmp1], 2 \n\t" \ - "sll %[tmp2], %[tmp2], 2 \n\t" \ - "sll %[tmp3], %[tmp3], 2 \n\t" \ - "sll %[tmp4], %[tmp4], 2 \n\t" \ - "lwx %[tmp1], %[tmp1](%[color_map]) \n\t" \ - "lwx %[tmp2], %[tmp2](%[color_map]) \n\t" \ - "lwx %[tmp3], %[tmp3](%[color_map]) \n\t" \ - "lwx %[tmp4], %[tmp4](%[color_map]) \n\t" \ - ".ifc " #TYPE ", uint8_t \n\t" \ - "ext %[tmp1], %[tmp1], 8, 8 \n\t" \ - "ext %[tmp2], %[tmp2], 8, 8 \n\t" \ - "ext %[tmp3], %[tmp3], 8, 8 \n\t" \ - "ext %[tmp4], %[tmp4], 8, 8 \n\t" \ - "sb %[tmp1], 0(%[dst]) \n\t" \ - "sb %[tmp2], 1(%[dst]) \n\t" \ - "sb %[tmp3], 2(%[dst]) \n\t" \ - "sb %[tmp4], 3(%[dst]) \n\t" \ - "addiu %[dst], %[dst], 4 \n\t" \ - ".endif \n\t" \ - ".ifc " #TYPE ", uint32_t \n\t" \ - "sw %[tmp1], 0(%[dst]) \n\t" \ - "sw %[tmp2], 4(%[dst]) \n\t" \ - "sw %[tmp3], 8(%[dst]) \n\t" \ - "sw %[tmp4], 12(%[dst]) \n\t" \ - "addiu %[dst], %[dst], 16 \n\t" \ - ".endif \n\t" \ - : [tmp1]"=&r"(tmp1), [tmp2]"=&r"(tmp2), [tmp3]"=&r"(tmp3), \ - [tmp4]"=&r"(tmp4), [src]"+&r"(src), [dst]"+r"(dst) \ - : [color_map]"r"(color_map) \ - : "memory" \ - ); \ - } \ - for (x = 0; x < (width & 3); ++x) { \ - *dst++ = GET_VALUE(color_map[GET_INDEX(*src++)]); \ - } \ - } \ -} - -MAP_COLOR_FUNCS(MapARGB, uint32_t, VP8GetARGBIndex, VP8GetARGBValue) -MAP_COLOR_FUNCS(MapAlpha, uint8_t, VP8GetAlphaIndex, VP8GetAlphaValue) - -#undef MAP_COLOR_FUNCS - -static WEBP_INLINE uint32_t ClampedAddSubtractFull(uint32_t c0, uint32_t c1, - uint32_t c2) { - int temp0, temp1, temp2, temp3, temp4, temp5; - __asm__ volatile ( - "preceu.ph.qbr %[temp1], %[c0] \n\t" - "preceu.ph.qbl %[temp2], %[c0] \n\t" - "preceu.ph.qbr %[temp3], %[c1] \n\t" - "preceu.ph.qbl %[temp4], %[c1] \n\t" - "preceu.ph.qbr %[temp5], %[c2] \n\t" - "preceu.ph.qbl %[temp0], %[c2] \n\t" - "subq.ph %[temp3], %[temp3], %[temp5] \n\t" - "subq.ph %[temp4], %[temp4], %[temp0] \n\t" - "addq.ph %[temp1], %[temp1], %[temp3] \n\t" - "addq.ph %[temp2], %[temp2], %[temp4] \n\t" - "shll_s.ph %[temp1], %[temp1], 7 \n\t" - "shll_s.ph %[temp2], %[temp2], 7 \n\t" - "precrqu_s.qb.ph %[temp2], %[temp2], %[temp1] \n\t" - : [temp0]"=r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5) - : [c0]"r"(c0), [c1]"r"(c1), [c2]"r"(c2) - : "memory" - ); - return temp2; -} - -static WEBP_INLINE uint32_t ClampedAddSubtractHalf(uint32_t c0, uint32_t c1, - uint32_t c2) { - int temp0, temp1, temp2, temp3, temp4, temp5; - __asm__ volatile ( - "adduh.qb %[temp5], %[c0], %[c1] \n\t" - "preceu.ph.qbr %[temp3], %[c2] \n\t" - "preceu.ph.qbr %[temp1], %[temp5] \n\t" - "preceu.ph.qbl %[temp2], %[temp5] \n\t" - "preceu.ph.qbl %[temp4], %[c2] \n\t" - "subq.ph %[temp3], %[temp1], %[temp3] \n\t" - "subq.ph %[temp4], %[temp2], %[temp4] \n\t" - "shrl.ph %[temp5], %[temp3], 15 \n\t" - "shrl.ph %[temp0], %[temp4], 15 \n\t" - "addq.ph %[temp3], %[temp3], %[temp5] \n\t" - "addq.ph %[temp4], %[temp0], %[temp4] \n\t" - "shra.ph %[temp3], %[temp3], 1 \n\t" - "shra.ph %[temp4], %[temp4], 1 \n\t" - "addq.ph %[temp1], %[temp1], %[temp3] \n\t" - "addq.ph %[temp2], %[temp2], %[temp4] \n\t" - "shll_s.ph %[temp1], %[temp1], 7 \n\t" - "shll_s.ph %[temp2], %[temp2], 7 \n\t" - "precrqu_s.qb.ph %[temp1], %[temp2], %[temp1] \n\t" - : [temp0]"=r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=r"(temp4), [temp5]"=&r"(temp5) - : [c0]"r"(c0), [c1]"r"(c1), [c2]"r"(c2) - : "memory" - ); - return temp1; -} - -static WEBP_INLINE uint32_t Select(uint32_t a, uint32_t b, uint32_t c) { - int temp0, temp1, temp2, temp3, temp4, temp5; - __asm__ volatile ( - "cmpgdu.lt.qb %[temp1], %[c], %[b] \n\t" - "pick.qb %[temp1], %[b], %[c] \n\t" - "pick.qb %[temp2], %[c], %[b] \n\t" - "cmpgdu.lt.qb %[temp4], %[c], %[a] \n\t" - "pick.qb %[temp4], %[a], %[c] \n\t" - "pick.qb %[temp5], %[c], %[a] \n\t" - "subu.qb %[temp3], %[temp1], %[temp2] \n\t" - "subu.qb %[temp0], %[temp4], %[temp5] \n\t" - "raddu.w.qb %[temp3], %[temp3] \n\t" - "raddu.w.qb %[temp0], %[temp0] \n\t" - "subu %[temp3], %[temp3], %[temp0] \n\t" - "slti %[temp0], %[temp3], 0x1 \n\t" - "movz %[a], %[b], %[temp0] \n\t" - : [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), - [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [temp0]"=&r"(temp0), - [a]"+&r"(a) - : [b]"r"(b), [c]"r"(c) - ); - return a; -} - -static WEBP_INLINE uint32_t Average2(uint32_t a0, uint32_t a1) { - __asm__ volatile ( - "adduh.qb %[a0], %[a0], %[a1] \n\t" - : [a0]"+r"(a0) - : [a1]"r"(a1) - ); - return a0; -} - -static WEBP_INLINE uint32_t Average3(uint32_t a0, uint32_t a1, uint32_t a2) { - return Average2(Average2(a0, a2), a1); -} - -static WEBP_INLINE uint32_t Average4(uint32_t a0, uint32_t a1, - uint32_t a2, uint32_t a3) { - return Average2(Average2(a0, a1), Average2(a2, a3)); -} - -static uint32_t Predictor5(uint32_t left, const uint32_t* const top) { - return Average3(left, top[0], top[1]); -} - -static uint32_t Predictor6(uint32_t left, const uint32_t* const top) { - return Average2(left, top[-1]); -} - -static uint32_t Predictor7(uint32_t left, const uint32_t* const top) { - return Average2(left, top[0]); -} - -static uint32_t Predictor8(uint32_t left, const uint32_t* const top) { - (void)left; - return Average2(top[-1], top[0]); -} - -static uint32_t Predictor9(uint32_t left, const uint32_t* const top) { - (void)left; - return Average2(top[0], top[1]); -} - -static uint32_t Predictor10(uint32_t left, const uint32_t* const top) { - return Average4(left, top[-1], top[0], top[1]); -} - -static uint32_t Predictor11(uint32_t left, const uint32_t* const top) { - return Select(top[0], left, top[-1]); -} - -static uint32_t Predictor12(uint32_t left, const uint32_t* const top) { - return ClampedAddSubtractFull(left, top[0], top[-1]); -} - -static uint32_t Predictor13(uint32_t left, const uint32_t* const top) { - return ClampedAddSubtractHalf(left, top[0], top[-1]); -} - -// Add green to blue and red channels (i.e. perform the inverse transform of -// 'subtract green'). -static void AddGreenToBlueAndRed(uint32_t* data, int num_pixels) { - uint32_t temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7; - uint32_t* const p_loop1_end = data + (num_pixels & ~3); - uint32_t* const p_loop2_end = data + num_pixels; - __asm__ volatile ( - ".set push \n\t" - ".set noreorder \n\t" - "beq %[data], %[p_loop1_end], 3f \n\t" - " nop \n\t" - "0: \n\t" - "lw %[temp0], 0(%[data]) \n\t" - "lw %[temp1], 4(%[data]) \n\t" - "lw %[temp2], 8(%[data]) \n\t" - "lw %[temp3], 12(%[data]) \n\t" - "ext %[temp4], %[temp0], 8, 8 \n\t" - "ext %[temp5], %[temp1], 8, 8 \n\t" - "ext %[temp6], %[temp2], 8, 8 \n\t" - "ext %[temp7], %[temp3], 8, 8 \n\t" - "addiu %[data], %[data], 16 \n\t" - "replv.ph %[temp4], %[temp4] \n\t" - "replv.ph %[temp5], %[temp5] \n\t" - "replv.ph %[temp6], %[temp6] \n\t" - "replv.ph %[temp7], %[temp7] \n\t" - "addu.qb %[temp0], %[temp0], %[temp4] \n\t" - "addu.qb %[temp1], %[temp1], %[temp5] \n\t" - "addu.qb %[temp2], %[temp2], %[temp6] \n\t" - "addu.qb %[temp3], %[temp3], %[temp7] \n\t" - "sw %[temp0], -16(%[data]) \n\t" - "sw %[temp1], -12(%[data]) \n\t" - "sw %[temp2], -8(%[data]) \n\t" - "bne %[data], %[p_loop1_end], 0b \n\t" - " sw %[temp3], -4(%[data]) \n\t" - "3: \n\t" - "beq %[data], %[p_loop2_end], 2f \n\t" - " nop \n\t" - "1: \n\t" - "lw %[temp0], 0(%[data]) \n\t" - "addiu %[data], %[data], 4 \n\t" - "ext %[temp4], %[temp0], 8, 8 \n\t" - "replv.ph %[temp4], %[temp4] \n\t" - "addu.qb %[temp0], %[temp0], %[temp4] \n\t" - "bne %[data], %[p_loop2_end], 1b \n\t" - " sw %[temp0], -4(%[data]) \n\t" - "2: \n\t" - ".set pop \n\t" - : [data]"+&r"(data), [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), - [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), - [temp5]"=&r"(temp5), [temp6]"=&r"(temp6), [temp7]"=&r"(temp7) - : [p_loop1_end]"r"(p_loop1_end), [p_loop2_end]"r"(p_loop2_end) - : "memory" - ); -} - -static void TransformColorInverse(const VP8LMultipliers* const m, - uint32_t* data, int num_pixels) { - int temp0, temp1, temp2, temp3, temp4, temp5; - uint32_t argb, argb1, new_red; - const uint32_t G_to_R = m->green_to_red_; - const uint32_t G_to_B = m->green_to_blue_; - const uint32_t R_to_B = m->red_to_blue_; - uint32_t* const p_loop_end = data + (num_pixels & ~1); - __asm__ volatile ( - ".set push \n\t" - ".set noreorder \n\t" - "beq %[data], %[p_loop_end], 1f \n\t" - " nop \n\t" - "replv.ph %[temp0], %[G_to_R] \n\t" - "replv.ph %[temp1], %[G_to_B] \n\t" - "replv.ph %[temp2], %[R_to_B] \n\t" - "shll.ph %[temp0], %[temp0], 8 \n\t" - "shll.ph %[temp1], %[temp1], 8 \n\t" - "shll.ph %[temp2], %[temp2], 8 \n\t" - "shra.ph %[temp0], %[temp0], 8 \n\t" - "shra.ph %[temp1], %[temp1], 8 \n\t" - "shra.ph %[temp2], %[temp2], 8 \n\t" - "0: \n\t" - "lw %[argb], 0(%[data]) \n\t" - "lw %[argb1], 4(%[data]) \n\t" - "addiu %[data], %[data], 8 \n\t" - "precrq.qb.ph %[temp3], %[argb], %[argb1] \n\t" - "preceu.ph.qbra %[temp3], %[temp3] \n\t" - "shll.ph %[temp3], %[temp3], 8 \n\t" - "shra.ph %[temp3], %[temp3], 8 \n\t" - "mul.ph %[temp5], %[temp3], %[temp0] \n\t" - "mul.ph %[temp3], %[temp3], %[temp1] \n\t" - "precrq.ph.w %[new_red], %[argb], %[argb1] \n\t" - "ins %[argb1], %[argb], 16, 16 \n\t" - "shra.ph %[temp5], %[temp5], 5 \n\t" - "shra.ph %[temp3], %[temp3], 5 \n\t" - "addu.ph %[new_red], %[new_red], %[temp5] \n\t" - "addu.ph %[argb1], %[argb1], %[temp3] \n\t" - "preceu.ph.qbra %[temp5], %[new_red] \n\t" - "shll.ph %[temp4], %[temp5], 8 \n\t" - "shra.ph %[temp4], %[temp4], 8 \n\t" - "mul.ph %[temp4], %[temp4], %[temp2] \n\t" - "sb %[temp5], -2(%[data]) \n\t" - "sra %[temp5], %[temp5], 16 \n\t" - "shra.ph %[temp4], %[temp4], 5 \n\t" - "addu.ph %[argb1], %[argb1], %[temp4] \n\t" - "preceu.ph.qbra %[temp3], %[argb1] \n\t" - "sb %[temp5], -6(%[data]) \n\t" - "sb %[temp3], -4(%[data]) \n\t" - "sra %[temp3], %[temp3], 16 \n\t" - "bne %[data], %[p_loop_end], 0b \n\t" - " sb %[temp3], -8(%[data]) \n\t" - "1: \n\t" - ".set pop \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [new_red]"=&r"(new_red), [argb]"=&r"(argb), - [argb1]"=&r"(argb1), [data]"+&r"(data) - : [G_to_R]"r"(G_to_R), [R_to_B]"r"(R_to_B), - [G_to_B]"r"(G_to_B), [p_loop_end]"r"(p_loop_end) - : "memory", "hi", "lo" - ); - - // Fall-back to C-version for left-overs. - if (num_pixels & 1) VP8LTransformColorInverse_C(m, data, 1); -} - -static void ConvertBGRAToRGB(const uint32_t* src, - int num_pixels, uint8_t* dst) { - int temp0, temp1, temp2, temp3; - const uint32_t* const p_loop1_end = src + (num_pixels & ~3); - const uint32_t* const p_loop2_end = src + num_pixels; - __asm__ volatile ( - ".set push \n\t" - ".set noreorder \n\t" - "beq %[src], %[p_loop1_end], 3f \n\t" - " nop \n\t" - "0: \n\t" - "lw %[temp3], 12(%[src]) \n\t" - "lw %[temp2], 8(%[src]) \n\t" - "lw %[temp1], 4(%[src]) \n\t" - "lw %[temp0], 0(%[src]) \n\t" - "ins %[temp3], %[temp2], 24, 8 \n\t" - "sll %[temp2], %[temp2], 8 \n\t" - "rotr %[temp3], %[temp3], 16 \n\t" - "ins %[temp2], %[temp1], 0, 16 \n\t" - "sll %[temp1], %[temp1], 8 \n\t" - "wsbh %[temp3], %[temp3] \n\t" - "balign %[temp0], %[temp1], 1 \n\t" - "wsbh %[temp2], %[temp2] \n\t" - "wsbh %[temp0], %[temp0] \n\t" - "usw %[temp3], 8(%[dst]) \n\t" - "rotr %[temp0], %[temp0], 16 \n\t" - "usw %[temp2], 4(%[dst]) \n\t" - "addiu %[src], %[src], 16 \n\t" - "usw %[temp0], 0(%[dst]) \n\t" - "bne %[src], %[p_loop1_end], 0b \n\t" - " addiu %[dst], %[dst], 12 \n\t" - "3: \n\t" - "beq %[src], %[p_loop2_end], 2f \n\t" - " nop \n\t" - "1: \n\t" - "lw %[temp0], 0(%[src]) \n\t" - "addiu %[src], %[src], 4 \n\t" - "wsbh %[temp1], %[temp0] \n\t" - "addiu %[dst], %[dst], 3 \n\t" - "ush %[temp1], -2(%[dst]) \n\t" - "sra %[temp0], %[temp0], 16 \n\t" - "bne %[src], %[p_loop2_end], 1b \n\t" - " sb %[temp0], -3(%[dst]) \n\t" - "2: \n\t" - ".set pop \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [dst]"+&r"(dst), [src]"+&r"(src) - : [p_loop1_end]"r"(p_loop1_end), [p_loop2_end]"r"(p_loop2_end) - : "memory" - ); -} - -static void ConvertBGRAToRGBA(const uint32_t* src, - int num_pixels, uint8_t* dst) { - int temp0, temp1, temp2, temp3; - const uint32_t* const p_loop1_end = src + (num_pixels & ~3); - const uint32_t* const p_loop2_end = src + num_pixels; - __asm__ volatile ( - ".set push \n\t" - ".set noreorder \n\t" - "beq %[src], %[p_loop1_end], 3f \n\t" - " nop \n\t" - "0: \n\t" - "lw %[temp0], 0(%[src]) \n\t" - "lw %[temp1], 4(%[src]) \n\t" - "lw %[temp2], 8(%[src]) \n\t" - "lw %[temp3], 12(%[src]) \n\t" - "wsbh %[temp0], %[temp0] \n\t" - "wsbh %[temp1], %[temp1] \n\t" - "wsbh %[temp2], %[temp2] \n\t" - "wsbh %[temp3], %[temp3] \n\t" - "addiu %[src], %[src], 16 \n\t" - "balign %[temp0], %[temp0], 1 \n\t" - "balign %[temp1], %[temp1], 1 \n\t" - "balign %[temp2], %[temp2], 1 \n\t" - "balign %[temp3], %[temp3], 1 \n\t" - "usw %[temp0], 0(%[dst]) \n\t" - "usw %[temp1], 4(%[dst]) \n\t" - "usw %[temp2], 8(%[dst]) \n\t" - "usw %[temp3], 12(%[dst]) \n\t" - "bne %[src], %[p_loop1_end], 0b \n\t" - " addiu %[dst], %[dst], 16 \n\t" - "3: \n\t" - "beq %[src], %[p_loop2_end], 2f \n\t" - " nop \n\t" - "1: \n\t" - "lw %[temp0], 0(%[src]) \n\t" - "wsbh %[temp0], %[temp0] \n\t" - "addiu %[src], %[src], 4 \n\t" - "balign %[temp0], %[temp0], 1 \n\t" - "usw %[temp0], 0(%[dst]) \n\t" - "bne %[src], %[p_loop2_end], 1b \n\t" - " addiu %[dst], %[dst], 4 \n\t" - "2: \n\t" - ".set pop \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [dst]"+&r"(dst), [src]"+&r"(src) - : [p_loop1_end]"r"(p_loop1_end), [p_loop2_end]"r"(p_loop2_end) - : "memory" - ); -} - -static void ConvertBGRAToRGBA4444(const uint32_t* src, - int num_pixels, uint8_t* dst) { - int temp0, temp1, temp2, temp3, temp4, temp5; - const uint32_t* const p_loop1_end = src + (num_pixels & ~3); - const uint32_t* const p_loop2_end = src + num_pixels; - __asm__ volatile ( - ".set push \n\t" - ".set noreorder \n\t" - "beq %[src], %[p_loop1_end], 3f \n\t" - " nop \n\t" - "0: \n\t" - "lw %[temp0], 0(%[src]) \n\t" - "lw %[temp1], 4(%[src]) \n\t" - "lw %[temp2], 8(%[src]) \n\t" - "lw %[temp3], 12(%[src]) \n\t" - "ext %[temp4], %[temp0], 28, 4 \n\t" - "ext %[temp5], %[temp0], 12, 4 \n\t" - "ins %[temp0], %[temp4], 0, 4 \n\t" - "ext %[temp4], %[temp1], 28, 4 \n\t" - "ins %[temp0], %[temp5], 16, 4 \n\t" - "ext %[temp5], %[temp1], 12, 4 \n\t" - "ins %[temp1], %[temp4], 0, 4 \n\t" - "ext %[temp4], %[temp2], 28, 4 \n\t" - "ins %[temp1], %[temp5], 16, 4 \n\t" - "ext %[temp5], %[temp2], 12, 4 \n\t" - "ins %[temp2], %[temp4], 0, 4 \n\t" - "ext %[temp4], %[temp3], 28, 4 \n\t" - "ins %[temp2], %[temp5], 16, 4 \n\t" - "ext %[temp5], %[temp3], 12, 4 \n\t" - "ins %[temp3], %[temp4], 0, 4 \n\t" - "precr.qb.ph %[temp1], %[temp1], %[temp0] \n\t" - "ins %[temp3], %[temp5], 16, 4 \n\t" - "addiu %[src], %[src], 16 \n\t" - "precr.qb.ph %[temp3], %[temp3], %[temp2] \n\t" -#ifdef WEBP_SWAP_16BIT_CSP - "usw %[temp1], 0(%[dst]) \n\t" - "usw %[temp3], 4(%[dst]) \n\t" -#else - "wsbh %[temp1], %[temp1] \n\t" - "wsbh %[temp3], %[temp3] \n\t" - "usw %[temp1], 0(%[dst]) \n\t" - "usw %[temp3], 4(%[dst]) \n\t" -#endif - "bne %[src], %[p_loop1_end], 0b \n\t" - " addiu %[dst], %[dst], 8 \n\t" - "3: \n\t" - "beq %[src], %[p_loop2_end], 2f \n\t" - " nop \n\t" - "1: \n\t" - "lw %[temp0], 0(%[src]) \n\t" - "ext %[temp4], %[temp0], 28, 4 \n\t" - "ext %[temp5], %[temp0], 12, 4 \n\t" - "ins %[temp0], %[temp4], 0, 4 \n\t" - "ins %[temp0], %[temp5], 16, 4 \n\t" - "addiu %[src], %[src], 4 \n\t" - "precr.qb.ph %[temp0], %[temp0], %[temp0] \n\t" -#ifdef WEBP_SWAP_16BIT_CSP - "ush %[temp0], 0(%[dst]) \n\t" -#else - "wsbh %[temp0], %[temp0] \n\t" - "ush %[temp0], 0(%[dst]) \n\t" -#endif - "bne %[src], %[p_loop2_end], 1b \n\t" - " addiu %[dst], %[dst], 2 \n\t" - "2: \n\t" - ".set pop \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [dst]"+&r"(dst), [src]"+&r"(src) - : [p_loop1_end]"r"(p_loop1_end), [p_loop2_end]"r"(p_loop2_end) - : "memory" - ); -} - -static void ConvertBGRAToRGB565(const uint32_t* src, - int num_pixels, uint8_t* dst) { - int temp0, temp1, temp2, temp3, temp4, temp5; - const uint32_t* const p_loop1_end = src + (num_pixels & ~3); - const uint32_t* const p_loop2_end = src + num_pixels; - __asm__ volatile ( - ".set push \n\t" - ".set noreorder \n\t" - "beq %[src], %[p_loop1_end], 3f \n\t" - " nop \n\t" - "0: \n\t" - "lw %[temp0], 0(%[src]) \n\t" - "lw %[temp1], 4(%[src]) \n\t" - "lw %[temp2], 8(%[src]) \n\t" - "lw %[temp3], 12(%[src]) \n\t" - "ext %[temp4], %[temp0], 8, 16 \n\t" - "ext %[temp5], %[temp0], 5, 11 \n\t" - "ext %[temp0], %[temp0], 3, 5 \n\t" - "ins %[temp4], %[temp5], 0, 11 \n\t" - "ext %[temp5], %[temp1], 5, 11 \n\t" - "ins %[temp4], %[temp0], 0, 5 \n\t" - "ext %[temp0], %[temp1], 8, 16 \n\t" - "ext %[temp1], %[temp1], 3, 5 \n\t" - "ins %[temp0], %[temp5], 0, 11 \n\t" - "ext %[temp5], %[temp2], 5, 11 \n\t" - "ins %[temp0], %[temp1], 0, 5 \n\t" - "ext %[temp1], %[temp2], 8, 16 \n\t" - "ext %[temp2], %[temp2], 3, 5 \n\t" - "ins %[temp1], %[temp5], 0, 11 \n\t" - "ext %[temp5], %[temp3], 5, 11 \n\t" - "ins %[temp1], %[temp2], 0, 5 \n\t" - "ext %[temp2], %[temp3], 8, 16 \n\t" - "ext %[temp3], %[temp3], 3, 5 \n\t" - "ins %[temp2], %[temp5], 0, 11 \n\t" - "append %[temp0], %[temp4], 16 \n\t" - "ins %[temp2], %[temp3], 0, 5 \n\t" - "addiu %[src], %[src], 16 \n\t" - "append %[temp2], %[temp1], 16 \n\t" -#ifdef WEBP_SWAP_16BIT_CSP - "usw %[temp0], 0(%[dst]) \n\t" - "usw %[temp2], 4(%[dst]) \n\t" -#else - "wsbh %[temp0], %[temp0] \n\t" - "wsbh %[temp2], %[temp2] \n\t" - "usw %[temp0], 0(%[dst]) \n\t" - "usw %[temp2], 4(%[dst]) \n\t" -#endif - "bne %[src], %[p_loop1_end], 0b \n\t" - " addiu %[dst], %[dst], 8 \n\t" - "3: \n\t" - "beq %[src], %[p_loop2_end], 2f \n\t" - " nop \n\t" - "1: \n\t" - "lw %[temp0], 0(%[src]) \n\t" - "ext %[temp4], %[temp0], 8, 16 \n\t" - "ext %[temp5], %[temp0], 5, 11 \n\t" - "ext %[temp0], %[temp0], 3, 5 \n\t" - "ins %[temp4], %[temp5], 0, 11 \n\t" - "addiu %[src], %[src], 4 \n\t" - "ins %[temp4], %[temp0], 0, 5 \n\t" -#ifdef WEBP_SWAP_16BIT_CSP - "ush %[temp4], 0(%[dst]) \n\t" -#else - "wsbh %[temp4], %[temp4] \n\t" - "ush %[temp4], 0(%[dst]) \n\t" -#endif - "bne %[src], %[p_loop2_end], 1b \n\t" - " addiu %[dst], %[dst], 2 \n\t" - "2: \n\t" - ".set pop \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), - [dst]"+&r"(dst), [src]"+&r"(src) - : [p_loop1_end]"r"(p_loop1_end), [p_loop2_end]"r"(p_loop2_end) - : "memory" - ); -} - -static void ConvertBGRAToBGR(const uint32_t* src, - int num_pixels, uint8_t* dst) { - int temp0, temp1, temp2, temp3; - const uint32_t* const p_loop1_end = src + (num_pixels & ~3); - const uint32_t* const p_loop2_end = src + num_pixels; - __asm__ volatile ( - ".set push \n\t" - ".set noreorder \n\t" - "beq %[src], %[p_loop1_end], 3f \n\t" - " nop \n\t" - "0: \n\t" - "lw %[temp0], 0(%[src]) \n\t" - "lw %[temp1], 4(%[src]) \n\t" - "lw %[temp2], 8(%[src]) \n\t" - "lw %[temp3], 12(%[src]) \n\t" - "ins %[temp0], %[temp1], 24, 8 \n\t" - "sra %[temp1], %[temp1], 8 \n\t" - "ins %[temp1], %[temp2], 16, 16 \n\t" - "sll %[temp2], %[temp2], 8 \n\t" - "balign %[temp3], %[temp2], 1 \n\t" - "addiu %[src], %[src], 16 \n\t" - "usw %[temp0], 0(%[dst]) \n\t" - "usw %[temp1], 4(%[dst]) \n\t" - "usw %[temp3], 8(%[dst]) \n\t" - "bne %[src], %[p_loop1_end], 0b \n\t" - " addiu %[dst], %[dst], 12 \n\t" - "3: \n\t" - "beq %[src], %[p_loop2_end], 2f \n\t" - " nop \n\t" - "1: \n\t" - "lw %[temp0], 0(%[src]) \n\t" - "addiu %[src], %[src], 4 \n\t" - "addiu %[dst], %[dst], 3 \n\t" - "ush %[temp0], -3(%[dst]) \n\t" - "sra %[temp0], %[temp0], 16 \n\t" - "bne %[src], %[p_loop2_end], 1b \n\t" - " sb %[temp0], -1(%[dst]) \n\t" - "2: \n\t" - ".set pop \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), - [temp3]"=&r"(temp3), [dst]"+&r"(dst), [src]"+&r"(src) - : [p_loop1_end]"r"(p_loop1_end), [p_loop2_end]"r"(p_loop2_end) - : "memory" - ); -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8LDspInitMIPSdspR2(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8LDspInitMIPSdspR2(void) { - VP8LMapColor32b = MapARGB; - VP8LMapColor8b = MapAlpha; - VP8LPredictors[5] = Predictor5; - VP8LPredictors[6] = Predictor6; - VP8LPredictors[7] = Predictor7; - VP8LPredictors[8] = Predictor8; - VP8LPredictors[9] = Predictor9; - VP8LPredictors[10] = Predictor10; - VP8LPredictors[11] = Predictor11; - VP8LPredictors[12] = Predictor12; - VP8LPredictors[13] = Predictor13; - VP8LAddGreenToBlueAndRed = AddGreenToBlueAndRed; - VP8LTransformColorInverse = TransformColorInverse; - VP8LConvertBGRAToRGB = ConvertBGRAToRGB; - VP8LConvertBGRAToRGBA = ConvertBGRAToRGBA; - VP8LConvertBGRAToRGBA4444 = ConvertBGRAToRGBA4444; - VP8LConvertBGRAToRGB565 = ConvertBGRAToRGB565; - VP8LConvertBGRAToBGR = ConvertBGRAToBGR; -} - -#else // !WEBP_USE_MIPS_DSP_R2 - -WEBP_DSP_INIT_STUB(VP8LDspInitMIPSdspR2) - -#endif // WEBP_USE_MIPS_DSP_R2 diff --git a/drivers/webp/dsp/lossless_neon.c b/drivers/webp/dsp/lossless_neon.c deleted file mode 100644 index 6faccb8f97..0000000000 --- a/drivers/webp/dsp/lossless_neon.c +++ /dev/null @@ -1,269 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// NEON variant of methods for lossless decoder -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_NEON) - -#include <arm_neon.h> - -#include "./lossless.h" -#include "./neon.h" - -//------------------------------------------------------------------------------ -// Colorspace conversion functions - -#if !defined(WORK_AROUND_GCC) -// gcc 4.6.0 had some trouble (NDK-r9) with this code. We only use it for -// gcc-4.8.x at least. -static void ConvertBGRAToRGBA(const uint32_t* src, - int num_pixels, uint8_t* dst) { - const uint32_t* const end = src + (num_pixels & ~15); - for (; src < end; src += 16) { - uint8x16x4_t pixel = vld4q_u8((uint8_t*)src); - // swap B and R. (VSWP d0,d2 has no intrinsics equivalent!) - const uint8x16_t tmp = pixel.val[0]; - pixel.val[0] = pixel.val[2]; - pixel.val[2] = tmp; - vst4q_u8(dst, pixel); - dst += 64; - } - VP8LConvertBGRAToRGBA_C(src, num_pixels & 15, dst); // left-overs -} - -static void ConvertBGRAToBGR(const uint32_t* src, - int num_pixels, uint8_t* dst) { - const uint32_t* const end = src + (num_pixels & ~15); - for (; src < end; src += 16) { - const uint8x16x4_t pixel = vld4q_u8((uint8_t*)src); - const uint8x16x3_t tmp = { { pixel.val[0], pixel.val[1], pixel.val[2] } }; - vst3q_u8(dst, tmp); - dst += 48; - } - VP8LConvertBGRAToBGR_C(src, num_pixels & 15, dst); // left-overs -} - -static void ConvertBGRAToRGB(const uint32_t* src, - int num_pixels, uint8_t* dst) { - const uint32_t* const end = src + (num_pixels & ~15); - for (; src < end; src += 16) { - const uint8x16x4_t pixel = vld4q_u8((uint8_t*)src); - const uint8x16x3_t tmp = { { pixel.val[2], pixel.val[1], pixel.val[0] } }; - vst3q_u8(dst, tmp); - dst += 48; - } - VP8LConvertBGRAToRGB_C(src, num_pixels & 15, dst); // left-overs -} - -#else // WORK_AROUND_GCC - -// gcc-4.6.0 fallback - -static const uint8_t kRGBAShuffle[8] = { 2, 1, 0, 3, 6, 5, 4, 7 }; - -static void ConvertBGRAToRGBA(const uint32_t* src, - int num_pixels, uint8_t* dst) { - const uint32_t* const end = src + (num_pixels & ~1); - const uint8x8_t shuffle = vld1_u8(kRGBAShuffle); - for (; src < end; src += 2) { - const uint8x8_t pixels = vld1_u8((uint8_t*)src); - vst1_u8(dst, vtbl1_u8(pixels, shuffle)); - dst += 8; - } - VP8LConvertBGRAToRGBA_C(src, num_pixels & 1, dst); // left-overs -} - -static const uint8_t kBGRShuffle[3][8] = { - { 0, 1, 2, 4, 5, 6, 8, 9 }, - { 10, 12, 13, 14, 16, 17, 18, 20 }, - { 21, 22, 24, 25, 26, 28, 29, 30 } -}; - -static void ConvertBGRAToBGR(const uint32_t* src, - int num_pixels, uint8_t* dst) { - const uint32_t* const end = src + (num_pixels & ~7); - const uint8x8_t shuffle0 = vld1_u8(kBGRShuffle[0]); - const uint8x8_t shuffle1 = vld1_u8(kBGRShuffle[1]); - const uint8x8_t shuffle2 = vld1_u8(kBGRShuffle[2]); - for (; src < end; src += 8) { - uint8x8x4_t pixels; - INIT_VECTOR4(pixels, - vld1_u8((const uint8_t*)(src + 0)), - vld1_u8((const uint8_t*)(src + 2)), - vld1_u8((const uint8_t*)(src + 4)), - vld1_u8((const uint8_t*)(src + 6))); - vst1_u8(dst + 0, vtbl4_u8(pixels, shuffle0)); - vst1_u8(dst + 8, vtbl4_u8(pixels, shuffle1)); - vst1_u8(dst + 16, vtbl4_u8(pixels, shuffle2)); - dst += 8 * 3; - } - VP8LConvertBGRAToBGR_C(src, num_pixels & 7, dst); // left-overs -} - -static const uint8_t kRGBShuffle[3][8] = { - { 2, 1, 0, 6, 5, 4, 10, 9 }, - { 8, 14, 13, 12, 18, 17, 16, 22 }, - { 21, 20, 26, 25, 24, 30, 29, 28 } -}; - -static void ConvertBGRAToRGB(const uint32_t* src, - int num_pixels, uint8_t* dst) { - const uint32_t* const end = src + (num_pixels & ~7); - const uint8x8_t shuffle0 = vld1_u8(kRGBShuffle[0]); - const uint8x8_t shuffle1 = vld1_u8(kRGBShuffle[1]); - const uint8x8_t shuffle2 = vld1_u8(kRGBShuffle[2]); - for (; src < end; src += 8) { - uint8x8x4_t pixels; - INIT_VECTOR4(pixels, - vld1_u8((const uint8_t*)(src + 0)), - vld1_u8((const uint8_t*)(src + 2)), - vld1_u8((const uint8_t*)(src + 4)), - vld1_u8((const uint8_t*)(src + 6))); - vst1_u8(dst + 0, vtbl4_u8(pixels, shuffle0)); - vst1_u8(dst + 8, vtbl4_u8(pixels, shuffle1)); - vst1_u8(dst + 16, vtbl4_u8(pixels, shuffle2)); - dst += 8 * 3; - } - VP8LConvertBGRAToRGB_C(src, num_pixels & 7, dst); // left-overs -} - -#endif // !WORK_AROUND_GCC - -//------------------------------------------------------------------------------ -// Subtract-Green Transform - -// vtbl?_u8 are marked unavailable for iOS arm64 with Xcode < 6.3, use -// non-standard versions there. -#if defined(__APPLE__) && defined(__aarch64__) && \ - defined(__apple_build_version__) && (__apple_build_version__< 6020037) -#define USE_VTBLQ -#endif - -#ifdef USE_VTBLQ -// 255 = byte will be zeroed -static const uint8_t kGreenShuffle[16] = { - 1, 255, 1, 255, 5, 255, 5, 255, 9, 255, 9, 255, 13, 255, 13, 255 -}; - -static WEBP_INLINE uint8x16_t DoGreenShuffle(const uint8x16_t argb, - const uint8x16_t shuffle) { - return vcombine_u8(vtbl1q_u8(argb, vget_low_u8(shuffle)), - vtbl1q_u8(argb, vget_high_u8(shuffle))); -} -#else // !USE_VTBLQ -// 255 = byte will be zeroed -static const uint8_t kGreenShuffle[8] = { 1, 255, 1, 255, 5, 255, 5, 255 }; - -static WEBP_INLINE uint8x16_t DoGreenShuffle(const uint8x16_t argb, - const uint8x8_t shuffle) { - return vcombine_u8(vtbl1_u8(vget_low_u8(argb), shuffle), - vtbl1_u8(vget_high_u8(argb), shuffle)); -} -#endif // USE_VTBLQ - -static void AddGreenToBlueAndRed(uint32_t* argb_data, int num_pixels) { - const uint32_t* const end = argb_data + (num_pixels & ~3); -#ifdef USE_VTBLQ - const uint8x16_t shuffle = vld1q_u8(kGreenShuffle); -#else - const uint8x8_t shuffle = vld1_u8(kGreenShuffle); -#endif - for (; argb_data < end; argb_data += 4) { - const uint8x16_t argb = vld1q_u8((uint8_t*)argb_data); - const uint8x16_t greens = DoGreenShuffle(argb, shuffle); - vst1q_u8((uint8_t*)argb_data, vaddq_u8(argb, greens)); - } - // fallthrough and finish off with plain-C - VP8LAddGreenToBlueAndRed_C(argb_data, num_pixels & 3); -} - -//------------------------------------------------------------------------------ -// Color Transform - -static void TransformColorInverse(const VP8LMultipliers* const m, - uint32_t* argb_data, int num_pixels) { - // sign-extended multiplying constants, pre-shifted by 6. -#define CST(X) (((int16_t)(m->X << 8)) >> 6) - const int16_t rb[8] = { - CST(green_to_blue_), CST(green_to_red_), - CST(green_to_blue_), CST(green_to_red_), - CST(green_to_blue_), CST(green_to_red_), - CST(green_to_blue_), CST(green_to_red_) - }; - const int16x8_t mults_rb = vld1q_s16(rb); - const int16_t b2[8] = { - 0, CST(red_to_blue_), 0, CST(red_to_blue_), - 0, CST(red_to_blue_), 0, CST(red_to_blue_), - }; - const int16x8_t mults_b2 = vld1q_s16(b2); -#undef CST -#ifdef USE_VTBLQ - static const uint8_t kg0g0[16] = { - 255, 1, 255, 1, 255, 5, 255, 5, 255, 9, 255, 9, 255, 13, 255, 13 - }; - const uint8x16_t shuffle = vld1q_u8(kg0g0); -#else - static const uint8_t k0g0g[8] = { 255, 1, 255, 1, 255, 5, 255, 5 }; - const uint8x8_t shuffle = vld1_u8(k0g0g); -#endif - const uint32x4_t mask_ag = vdupq_n_u32(0xff00ff00u); - int i; - for (i = 0; i + 4 <= num_pixels; i += 4) { - const uint8x16_t in = vld1q_u8((uint8_t*)(argb_data + i)); - const uint32x4_t a0g0 = vandq_u32(vreinterpretq_u32_u8(in), mask_ag); - // 0 g 0 g - const uint8x16_t greens = DoGreenShuffle(in, shuffle); - // x dr x db1 - const int16x8_t A = vqdmulhq_s16(vreinterpretq_s16_u8(greens), mults_rb); - // x r' x b' - const int8x16_t B = vaddq_s8(vreinterpretq_s8_u8(in), - vreinterpretq_s8_s16(A)); - // r' 0 b' 0 - const int16x8_t C = vshlq_n_s16(vreinterpretq_s16_s8(B), 8); - // x db2 0 0 - const int16x8_t D = vqdmulhq_s16(C, mults_b2); - // 0 x db2 0 - const uint32x4_t E = vshrq_n_u32(vreinterpretq_u32_s16(D), 8); - // r' x b'' 0 - const int8x16_t F = vaddq_s8(vreinterpretq_s8_u32(E), - vreinterpretq_s8_s16(C)); - // 0 r' 0 b'' - const uint16x8_t G = vshrq_n_u16(vreinterpretq_u16_s8(F), 8); - const uint32x4_t out = vorrq_u32(vreinterpretq_u32_u16(G), a0g0); - vst1q_u32(argb_data + i, out); - } - // Fall-back to C-version for left-overs. - VP8LTransformColorInverse_C(m, argb_data + i, num_pixels - i); -} - -#undef USE_VTBLQ - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8LDspInitNEON(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8LDspInitNEON(void) { - VP8LConvertBGRAToRGBA = ConvertBGRAToRGBA; - VP8LConvertBGRAToBGR = ConvertBGRAToBGR; - VP8LConvertBGRAToRGB = ConvertBGRAToRGB; - - VP8LAddGreenToBlueAndRed = AddGreenToBlueAndRed; - VP8LTransformColorInverse = TransformColorInverse; -} - -#else // !WEBP_USE_NEON - -WEBP_DSP_INIT_STUB(VP8LDspInitNEON) - -#endif // WEBP_USE_NEON diff --git a/drivers/webp/dsp/lossless_sse2.c b/drivers/webp/dsp/lossless_sse2.c deleted file mode 100644 index 2d016c2911..0000000000 --- a/drivers/webp/dsp/lossless_sse2.c +++ /dev/null @@ -1,372 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// SSE2 variant of methods for lossless decoder -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_SSE2) -#include <assert.h> -#include <emmintrin.h> -#include "./lossless.h" - -//------------------------------------------------------------------------------ -// Predictor Transform - -static WEBP_INLINE uint32_t ClampedAddSubtractFull(uint32_t c0, uint32_t c1, - uint32_t c2) { - const __m128i zero = _mm_setzero_si128(); - const __m128i C0 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(c0), zero); - const __m128i C1 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(c1), zero); - const __m128i C2 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(c2), zero); - const __m128i V1 = _mm_add_epi16(C0, C1); - const __m128i V2 = _mm_sub_epi16(V1, C2); - const __m128i b = _mm_packus_epi16(V2, V2); - const uint32_t output = _mm_cvtsi128_si32(b); - return output; -} - -static WEBP_INLINE uint32_t ClampedAddSubtractHalf(uint32_t c0, uint32_t c1, - uint32_t c2) { - const __m128i zero = _mm_setzero_si128(); - const __m128i C0 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(c0), zero); - const __m128i C1 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(c1), zero); - const __m128i B0 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(c2), zero); - const __m128i avg = _mm_add_epi16(C1, C0); - const __m128i A0 = _mm_srli_epi16(avg, 1); - const __m128i A1 = _mm_sub_epi16(A0, B0); - const __m128i BgtA = _mm_cmpgt_epi16(B0, A0); - const __m128i A2 = _mm_sub_epi16(A1, BgtA); - const __m128i A3 = _mm_srai_epi16(A2, 1); - const __m128i A4 = _mm_add_epi16(A0, A3); - const __m128i A5 = _mm_packus_epi16(A4, A4); - const uint32_t output = _mm_cvtsi128_si32(A5); - return output; -} - -static WEBP_INLINE uint32_t Select(uint32_t a, uint32_t b, uint32_t c) { - int pa_minus_pb; - const __m128i zero = _mm_setzero_si128(); - const __m128i A0 = _mm_cvtsi32_si128(a); - const __m128i B0 = _mm_cvtsi32_si128(b); - const __m128i C0 = _mm_cvtsi32_si128(c); - const __m128i AC0 = _mm_subs_epu8(A0, C0); - const __m128i CA0 = _mm_subs_epu8(C0, A0); - const __m128i BC0 = _mm_subs_epu8(B0, C0); - const __m128i CB0 = _mm_subs_epu8(C0, B0); - const __m128i AC = _mm_or_si128(AC0, CA0); - const __m128i BC = _mm_or_si128(BC0, CB0); - const __m128i pa = _mm_unpacklo_epi8(AC, zero); // |a - c| - const __m128i pb = _mm_unpacklo_epi8(BC, zero); // |b - c| - const __m128i diff = _mm_sub_epi16(pb, pa); - { - int16_t out[8]; - _mm_storeu_si128((__m128i*)out, diff); - pa_minus_pb = out[0] + out[1] + out[2] + out[3]; - } - return (pa_minus_pb <= 0) ? a : b; -} - -static WEBP_INLINE __m128i Average2_128i(uint32_t a0, uint32_t a1) { - const __m128i zero = _mm_setzero_si128(); - const __m128i A0 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(a0), zero); - const __m128i A1 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(a1), zero); - const __m128i sum = _mm_add_epi16(A1, A0); - const __m128i avg = _mm_srli_epi16(sum, 1); - return avg; -} - -static WEBP_INLINE uint32_t Average2(uint32_t a0, uint32_t a1) { - const __m128i avg = Average2_128i(a0, a1); - const __m128i A2 = _mm_packus_epi16(avg, avg); - const uint32_t output = _mm_cvtsi128_si32(A2); - return output; -} - -static WEBP_INLINE uint32_t Average3(uint32_t a0, uint32_t a1, uint32_t a2) { - const __m128i zero = _mm_setzero_si128(); - const __m128i avg1 = Average2_128i(a0, a2); - const __m128i A1 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(a1), zero); - const __m128i sum = _mm_add_epi16(avg1, A1); - const __m128i avg2 = _mm_srli_epi16(sum, 1); - const __m128i A2 = _mm_packus_epi16(avg2, avg2); - const uint32_t output = _mm_cvtsi128_si32(A2); - return output; -} - -static WEBP_INLINE uint32_t Average4(uint32_t a0, uint32_t a1, - uint32_t a2, uint32_t a3) { - const __m128i avg1 = Average2_128i(a0, a1); - const __m128i avg2 = Average2_128i(a2, a3); - const __m128i sum = _mm_add_epi16(avg2, avg1); - const __m128i avg3 = _mm_srli_epi16(sum, 1); - const __m128i A0 = _mm_packus_epi16(avg3, avg3); - const uint32_t output = _mm_cvtsi128_si32(A0); - return output; -} - -static uint32_t Predictor5(uint32_t left, const uint32_t* const top) { - const uint32_t pred = Average3(left, top[0], top[1]); - return pred; -} -static uint32_t Predictor6(uint32_t left, const uint32_t* const top) { - const uint32_t pred = Average2(left, top[-1]); - return pred; -} -static uint32_t Predictor7(uint32_t left, const uint32_t* const top) { - const uint32_t pred = Average2(left, top[0]); - return pred; -} -static uint32_t Predictor8(uint32_t left, const uint32_t* const top) { - const uint32_t pred = Average2(top[-1], top[0]); - (void)left; - return pred; -} -static uint32_t Predictor9(uint32_t left, const uint32_t* const top) { - const uint32_t pred = Average2(top[0], top[1]); - (void)left; - return pred; -} -static uint32_t Predictor10(uint32_t left, const uint32_t* const top) { - const uint32_t pred = Average4(left, top[-1], top[0], top[1]); - return pred; -} -static uint32_t Predictor11(uint32_t left, const uint32_t* const top) { - const uint32_t pred = Select(top[0], left, top[-1]); - return pred; -} -static uint32_t Predictor12(uint32_t left, const uint32_t* const top) { - const uint32_t pred = ClampedAddSubtractFull(left, top[0], top[-1]); - return pred; -} -static uint32_t Predictor13(uint32_t left, const uint32_t* const top) { - const uint32_t pred = ClampedAddSubtractHalf(left, top[0], top[-1]); - return pred; -} - -//------------------------------------------------------------------------------ -// Subtract-Green Transform - -static void AddGreenToBlueAndRed(uint32_t* argb_data, int num_pixels) { - int i; - for (i = 0; i + 4 <= num_pixels; i += 4) { - const __m128i in = _mm_loadu_si128((__m128i*)&argb_data[i]); // argb - const __m128i A = _mm_srli_epi16(in, 8); // 0 a 0 g - const __m128i B = _mm_shufflelo_epi16(A, _MM_SHUFFLE(2, 2, 0, 0)); - const __m128i C = _mm_shufflehi_epi16(B, _MM_SHUFFLE(2, 2, 0, 0)); // 0g0g - const __m128i out = _mm_add_epi8(in, C); - _mm_storeu_si128((__m128i*)&argb_data[i], out); - } - // fallthrough and finish off with plain-C - VP8LAddGreenToBlueAndRed_C(argb_data + i, num_pixels - i); -} - -//------------------------------------------------------------------------------ -// Color Transform - -static void TransformColorInverse(const VP8LMultipliers* const m, - uint32_t* argb_data, int num_pixels) { - // sign-extended multiplying constants, pre-shifted by 5. -#define CST(X) (((int16_t)(m->X << 8)) >> 5) // sign-extend - const __m128i mults_rb = _mm_set_epi16( - CST(green_to_red_), CST(green_to_blue_), - CST(green_to_red_), CST(green_to_blue_), - CST(green_to_red_), CST(green_to_blue_), - CST(green_to_red_), CST(green_to_blue_)); - const __m128i mults_b2 = _mm_set_epi16( - CST(red_to_blue_), 0, CST(red_to_blue_), 0, - CST(red_to_blue_), 0, CST(red_to_blue_), 0); -#undef CST - const __m128i mask_ag = _mm_set1_epi32(0xff00ff00); // alpha-green masks - int i; - for (i = 0; i + 4 <= num_pixels; i += 4) { - const __m128i in = _mm_loadu_si128((__m128i*)&argb_data[i]); // argb - const __m128i A = _mm_and_si128(in, mask_ag); // a 0 g 0 - const __m128i B = _mm_shufflelo_epi16(A, _MM_SHUFFLE(2, 2, 0, 0)); - const __m128i C = _mm_shufflehi_epi16(B, _MM_SHUFFLE(2, 2, 0, 0)); // g0g0 - const __m128i D = _mm_mulhi_epi16(C, mults_rb); // x dr x db1 - const __m128i E = _mm_add_epi8(in, D); // x r' x b' - const __m128i F = _mm_slli_epi16(E, 8); // r' 0 b' 0 - const __m128i G = _mm_mulhi_epi16(F, mults_b2); // x db2 0 0 - const __m128i H = _mm_srli_epi32(G, 8); // 0 x db2 0 - const __m128i I = _mm_add_epi8(H, F); // r' x b'' 0 - const __m128i J = _mm_srli_epi16(I, 8); // 0 r' 0 b'' - const __m128i out = _mm_or_si128(J, A); - _mm_storeu_si128((__m128i*)&argb_data[i], out); - } - // Fall-back to C-version for left-overs. - VP8LTransformColorInverse_C(m, argb_data + i, num_pixels - i); -} - -//------------------------------------------------------------------------------ -// Color-space conversion functions - -static void ConvertBGRAToRGBA(const uint32_t* src, - int num_pixels, uint8_t* dst) { - const __m128i* in = (const __m128i*)src; - __m128i* out = (__m128i*)dst; - while (num_pixels >= 8) { - const __m128i bgra0 = _mm_loadu_si128(in++); // bgra0|bgra1|bgra2|bgra3 - const __m128i bgra4 = _mm_loadu_si128(in++); // bgra4|bgra5|bgra6|bgra7 - const __m128i v0l = _mm_unpacklo_epi8(bgra0, bgra4); // b0b4g0g4r0r4a0a4... - const __m128i v0h = _mm_unpackhi_epi8(bgra0, bgra4); // b2b6g2g6r2r6a2a6... - const __m128i v1l = _mm_unpacklo_epi8(v0l, v0h); // b0b2b4b6g0g2g4g6... - const __m128i v1h = _mm_unpackhi_epi8(v0l, v0h); // b1b3b5b7g1g3g5g7... - const __m128i v2l = _mm_unpacklo_epi8(v1l, v1h); // b0...b7 | g0...g7 - const __m128i v2h = _mm_unpackhi_epi8(v1l, v1h); // r0...r7 | a0...a7 - const __m128i ga0 = _mm_unpackhi_epi64(v2l, v2h); // g0...g7 | a0...a7 - const __m128i rb0 = _mm_unpacklo_epi64(v2h, v2l); // r0...r7 | b0...b7 - const __m128i rg0 = _mm_unpacklo_epi8(rb0, ga0); // r0g0r1g1 ... r6g6r7g7 - const __m128i ba0 = _mm_unpackhi_epi8(rb0, ga0); // b0a0b1a1 ... b6a6b7a7 - const __m128i rgba0 = _mm_unpacklo_epi16(rg0, ba0); // rgba0|rgba1... - const __m128i rgba4 = _mm_unpackhi_epi16(rg0, ba0); // rgba4|rgba5... - _mm_storeu_si128(out++, rgba0); - _mm_storeu_si128(out++, rgba4); - num_pixels -= 8; - } - // left-overs - VP8LConvertBGRAToRGBA_C((const uint32_t*)in, num_pixels, (uint8_t*)out); -} - -static void ConvertBGRAToRGBA4444(const uint32_t* src, - int num_pixels, uint8_t* dst) { - const __m128i mask_0x0f = _mm_set1_epi8(0x0f); - const __m128i mask_0xf0 = _mm_set1_epi8(0xf0); - const __m128i* in = (const __m128i*)src; - __m128i* out = (__m128i*)dst; - while (num_pixels >= 8) { - const __m128i bgra0 = _mm_loadu_si128(in++); // bgra0|bgra1|bgra2|bgra3 - const __m128i bgra4 = _mm_loadu_si128(in++); // bgra4|bgra5|bgra6|bgra7 - const __m128i v0l = _mm_unpacklo_epi8(bgra0, bgra4); // b0b4g0g4r0r4a0a4... - const __m128i v0h = _mm_unpackhi_epi8(bgra0, bgra4); // b2b6g2g6r2r6a2a6... - const __m128i v1l = _mm_unpacklo_epi8(v0l, v0h); // b0b2b4b6g0g2g4g6... - const __m128i v1h = _mm_unpackhi_epi8(v0l, v0h); // b1b3b5b7g1g3g5g7... - const __m128i v2l = _mm_unpacklo_epi8(v1l, v1h); // b0...b7 | g0...g7 - const __m128i v2h = _mm_unpackhi_epi8(v1l, v1h); // r0...r7 | a0...a7 - const __m128i ga0 = _mm_unpackhi_epi64(v2l, v2h); // g0...g7 | a0...a7 - const __m128i rb0 = _mm_unpacklo_epi64(v2h, v2l); // r0...r7 | b0...b7 - const __m128i ga1 = _mm_srli_epi16(ga0, 4); // g0-|g1-|...|a6-|a7- - const __m128i rb1 = _mm_and_si128(rb0, mask_0xf0); // -r0|-r1|...|-b6|-a7 - const __m128i ga2 = _mm_and_si128(ga1, mask_0x0f); // g0-|g1-|...|a6-|a7- - const __m128i rgba0 = _mm_or_si128(ga2, rb1); // rg0..rg7 | ba0..ba7 - const __m128i rgba1 = _mm_srli_si128(rgba0, 8); // ba0..ba7 | 0 -#ifdef WEBP_SWAP_16BIT_CSP - const __m128i rgba = _mm_unpacklo_epi8(rgba1, rgba0); // barg0...barg7 -#else - const __m128i rgba = _mm_unpacklo_epi8(rgba0, rgba1); // rgba0...rgba7 -#endif - _mm_storeu_si128(out++, rgba); - num_pixels -= 8; - } - // left-overs - VP8LConvertBGRAToRGBA4444_C((const uint32_t*)in, num_pixels, (uint8_t*)out); -} - -static void ConvertBGRAToRGB565(const uint32_t* src, - int num_pixels, uint8_t* dst) { - const __m128i mask_0xe0 = _mm_set1_epi8(0xe0); - const __m128i mask_0xf8 = _mm_set1_epi8(0xf8); - const __m128i mask_0x07 = _mm_set1_epi8(0x07); - const __m128i* in = (const __m128i*)src; - __m128i* out = (__m128i*)dst; - while (num_pixels >= 8) { - const __m128i bgra0 = _mm_loadu_si128(in++); // bgra0|bgra1|bgra2|bgra3 - const __m128i bgra4 = _mm_loadu_si128(in++); // bgra4|bgra5|bgra6|bgra7 - const __m128i v0l = _mm_unpacklo_epi8(bgra0, bgra4); // b0b4g0g4r0r4a0a4... - const __m128i v0h = _mm_unpackhi_epi8(bgra0, bgra4); // b2b6g2g6r2r6a2a6... - const __m128i v1l = _mm_unpacklo_epi8(v0l, v0h); // b0b2b4b6g0g2g4g6... - const __m128i v1h = _mm_unpackhi_epi8(v0l, v0h); // b1b3b5b7g1g3g5g7... - const __m128i v2l = _mm_unpacklo_epi8(v1l, v1h); // b0...b7 | g0...g7 - const __m128i v2h = _mm_unpackhi_epi8(v1l, v1h); // r0...r7 | a0...a7 - const __m128i ga0 = _mm_unpackhi_epi64(v2l, v2h); // g0...g7 | a0...a7 - const __m128i rb0 = _mm_unpacklo_epi64(v2h, v2l); // r0...r7 | b0...b7 - const __m128i rb1 = _mm_and_si128(rb0, mask_0xf8); // -r0..-r7|-b0..-b7 - const __m128i g_lo1 = _mm_srli_epi16(ga0, 5); - const __m128i g_lo2 = _mm_and_si128(g_lo1, mask_0x07); // g0-...g7-|xx (3b) - const __m128i g_hi1 = _mm_slli_epi16(ga0, 3); - const __m128i g_hi2 = _mm_and_si128(g_hi1, mask_0xe0); // -g0...-g7|xx (3b) - const __m128i b0 = _mm_srli_si128(rb1, 8); // -b0...-b7|0 - const __m128i rg1 = _mm_or_si128(rb1, g_lo2); // gr0...gr7|xx - const __m128i b1 = _mm_srli_epi16(b0, 3); - const __m128i gb1 = _mm_or_si128(b1, g_hi2); // bg0...bg7|xx -#ifdef WEBP_SWAP_16BIT_CSP - const __m128i rgba = _mm_unpacklo_epi8(gb1, rg1); // rggb0...rggb7 -#else - const __m128i rgba = _mm_unpacklo_epi8(rg1, gb1); // bgrb0...bgrb7 -#endif - _mm_storeu_si128(out++, rgba); - num_pixels -= 8; - } - // left-overs - VP8LConvertBGRAToRGB565_C((const uint32_t*)in, num_pixels, (uint8_t*)out); -} - -static void ConvertBGRAToBGR(const uint32_t* src, - int num_pixels, uint8_t* dst) { - const __m128i mask_l = _mm_set_epi32(0, 0x00ffffff, 0, 0x00ffffff); - const __m128i mask_h = _mm_set_epi32(0x00ffffff, 0, 0x00ffffff, 0); - const __m128i* in = (const __m128i*)src; - const uint8_t* const end = dst + num_pixels * 3; - // the last storel_epi64 below writes 8 bytes starting at offset 18 - while (dst + 26 <= end) { - const __m128i bgra0 = _mm_loadu_si128(in++); // bgra0|bgra1|bgra2|bgra3 - const __m128i bgra4 = _mm_loadu_si128(in++); // bgra4|bgra5|bgra6|bgra7 - const __m128i a0l = _mm_and_si128(bgra0, mask_l); // bgr0|0|bgr0|0 - const __m128i a4l = _mm_and_si128(bgra4, mask_l); // bgr0|0|bgr0|0 - const __m128i a0h = _mm_and_si128(bgra0, mask_h); // 0|bgr0|0|bgr0 - const __m128i a4h = _mm_and_si128(bgra4, mask_h); // 0|bgr0|0|bgr0 - const __m128i b0h = _mm_srli_epi64(a0h, 8); // 000b|gr00|000b|gr00 - const __m128i b4h = _mm_srli_epi64(a4h, 8); // 000b|gr00|000b|gr00 - const __m128i c0 = _mm_or_si128(a0l, b0h); // rgbrgb00|rgbrgb00 - const __m128i c4 = _mm_or_si128(a4l, b4h); // rgbrgb00|rgbrgb00 - const __m128i c2 = _mm_srli_si128(c0, 8); - const __m128i c6 = _mm_srli_si128(c4, 8); - _mm_storel_epi64((__m128i*)(dst + 0), c0); - _mm_storel_epi64((__m128i*)(dst + 6), c2); - _mm_storel_epi64((__m128i*)(dst + 12), c4); - _mm_storel_epi64((__m128i*)(dst + 18), c6); - dst += 24; - num_pixels -= 8; - } - // left-overs - VP8LConvertBGRAToBGR_C((const uint32_t*)in, num_pixels, dst); -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void VP8LDspInitSSE2(void); - -WEBP_TSAN_IGNORE_FUNCTION void VP8LDspInitSSE2(void) { - VP8LPredictors[5] = Predictor5; - VP8LPredictors[6] = Predictor6; - VP8LPredictors[7] = Predictor7; - VP8LPredictors[8] = Predictor8; - VP8LPredictors[9] = Predictor9; - VP8LPredictors[10] = Predictor10; - VP8LPredictors[11] = Predictor11; - VP8LPredictors[12] = Predictor12; - VP8LPredictors[13] = Predictor13; - - VP8LAddGreenToBlueAndRed = AddGreenToBlueAndRed; - VP8LTransformColorInverse = TransformColorInverse; - - VP8LConvertBGRAToRGBA = ConvertBGRAToRGBA; - VP8LConvertBGRAToRGBA4444 = ConvertBGRAToRGBA4444; - VP8LConvertBGRAToRGB565 = ConvertBGRAToRGB565; - VP8LConvertBGRAToBGR = ConvertBGRAToBGR; -} - -#else // !WEBP_USE_SSE2 - -WEBP_DSP_INIT_STUB(VP8LDspInitSSE2) - -#endif // WEBP_USE_SSE2 diff --git a/drivers/webp/dsp/mips_macro.h b/drivers/webp/dsp/mips_macro.h deleted file mode 100644 index 44aba9b71d..0000000000 --- a/drivers/webp/dsp/mips_macro.h +++ /dev/null @@ -1,200 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// MIPS common macros - -#ifndef WEBP_DSP_MIPS_MACRO_H_ -#define WEBP_DSP_MIPS_MACRO_H_ - -#if defined(__GNUC__) && defined(__ANDROID__) && LOCAL_GCC_VERSION == 0x409 -#define WORK_AROUND_GCC -#endif - -#define STR(s) #s -#define XSTR(s) STR(s) - -// O0[31..16 | 15..0] = I0[31..16 | 15..0] + I1[31..16 | 15..0] -// O1[31..16 | 15..0] = I0[31..16 | 15..0] - I1[31..16 | 15..0] -// O - output -// I - input (macro doesn't change it) -#define ADD_SUB_HALVES(O0, O1, \ - I0, I1) \ - "addq.ph %[" #O0 "], %[" #I0 "], %[" #I1 "] \n\t" \ - "subq.ph %[" #O1 "], %[" #I0 "], %[" #I1 "] \n\t" - -// O - output -// I - input (macro doesn't change it) -// I[0/1] - offset in bytes -#define LOAD_IN_X2(O0, O1, \ - I0, I1) \ - "lh %[" #O0 "], " #I0 "(%[in]) \n\t" \ - "lh %[" #O1 "], " #I1 "(%[in]) \n\t" - -// I0 - location -// I1..I9 - offsets in bytes -#define LOAD_WITH_OFFSET_X4(O0, O1, O2, O3, \ - I0, I1, I2, I3, I4, I5, I6, I7, I8, I9) \ - "ulw %[" #O0 "], " #I1 "+" XSTR(I9) "*" #I5 "(%[" #I0 "]) \n\t" \ - "ulw %[" #O1 "], " #I2 "+" XSTR(I9) "*" #I6 "(%[" #I0 "]) \n\t" \ - "ulw %[" #O2 "], " #I3 "+" XSTR(I9) "*" #I7 "(%[" #I0 "]) \n\t" \ - "ulw %[" #O3 "], " #I4 "+" XSTR(I9) "*" #I8 "(%[" #I0 "]) \n\t" - -// O - output -// IO - input/output -// I - input (macro doesn't change it) -#define MUL_SHIFT_SUM(O0, O1, O2, O3, O4, O5, O6, O7, \ - IO0, IO1, IO2, IO3, \ - I0, I1, I2, I3, I4, I5, I6, I7) \ - "mul %[" #O0 "], %[" #I0 "], %[kC2] \n\t" \ - "mul %[" #O1 "], %[" #I0 "], %[kC1] \n\t" \ - "mul %[" #O2 "], %[" #I1 "], %[kC2] \n\t" \ - "mul %[" #O3 "], %[" #I1 "], %[kC1] \n\t" \ - "mul %[" #O4 "], %[" #I2 "], %[kC2] \n\t" \ - "mul %[" #O5 "], %[" #I2 "], %[kC1] \n\t" \ - "mul %[" #O6 "], %[" #I3 "], %[kC2] \n\t" \ - "mul %[" #O7 "], %[" #I3 "], %[kC1] \n\t" \ - "sra %[" #O0 "], %[" #O0 "], 16 \n\t" \ - "sra %[" #O1 "], %[" #O1 "], 16 \n\t" \ - "sra %[" #O2 "], %[" #O2 "], 16 \n\t" \ - "sra %[" #O3 "], %[" #O3 "], 16 \n\t" \ - "sra %[" #O4 "], %[" #O4 "], 16 \n\t" \ - "sra %[" #O5 "], %[" #O5 "], 16 \n\t" \ - "sra %[" #O6 "], %[" #O6 "], 16 \n\t" \ - "sra %[" #O7 "], %[" #O7 "], 16 \n\t" \ - "addu %[" #IO0 "], %[" #IO0 "], %[" #I4 "] \n\t" \ - "addu %[" #IO1 "], %[" #IO1 "], %[" #I5 "] \n\t" \ - "subu %[" #IO2 "], %[" #IO2 "], %[" #I6 "] \n\t" \ - "subu %[" #IO3 "], %[" #IO3 "], %[" #I7 "] \n\t" - -// O - output -// I - input (macro doesn't change it) -#define INSERT_HALF_X2(O0, O1, \ - I0, I1) \ - "ins %[" #O0 "], %[" #I0 "], 16, 16 \n\t" \ - "ins %[" #O1 "], %[" #I1 "], 16, 16 \n\t" - -// O - output -// I - input (macro doesn't change it) -#define SRA_16(O0, O1, O2, O3, \ - I0, I1, I2, I3) \ - "sra %[" #O0 "], %[" #I0 "], 16 \n\t" \ - "sra %[" #O1 "], %[" #I1 "], 16 \n\t" \ - "sra %[" #O2 "], %[" #I2 "], 16 \n\t" \ - "sra %[" #O3 "], %[" #I3 "], 16 \n\t" - -// temp0[31..16 | 15..0] = temp8[31..16 | 15..0] + temp12[31..16 | 15..0] -// temp1[31..16 | 15..0] = temp8[31..16 | 15..0] - temp12[31..16 | 15..0] -// temp0[31..16 | 15..0] = temp0[31..16 >> 3 | 15..0 >> 3] -// temp1[31..16 | 15..0] = temp1[31..16 >> 3 | 15..0 >> 3] -// O - output -// I - input (macro doesn't change it) -#define SHIFT_R_SUM_X2(O0, O1, O2, O3, O4, O5, O6, O7, \ - I0, I1, I2, I3, I4, I5, I6, I7) \ - "addq.ph %[" #O0 "], %[" #I0 "], %[" #I4 "] \n\t" \ - "subq.ph %[" #O1 "], %[" #I0 "], %[" #I4 "] \n\t" \ - "addq.ph %[" #O2 "], %[" #I1 "], %[" #I5 "] \n\t" \ - "subq.ph %[" #O3 "], %[" #I1 "], %[" #I5 "] \n\t" \ - "addq.ph %[" #O4 "], %[" #I2 "], %[" #I6 "] \n\t" \ - "subq.ph %[" #O5 "], %[" #I2 "], %[" #I6 "] \n\t" \ - "addq.ph %[" #O6 "], %[" #I3 "], %[" #I7 "] \n\t" \ - "subq.ph %[" #O7 "], %[" #I3 "], %[" #I7 "] \n\t" \ - "shra.ph %[" #O0 "], %[" #O0 "], 3 \n\t" \ - "shra.ph %[" #O1 "], %[" #O1 "], 3 \n\t" \ - "shra.ph %[" #O2 "], %[" #O2 "], 3 \n\t" \ - "shra.ph %[" #O3 "], %[" #O3 "], 3 \n\t" \ - "shra.ph %[" #O4 "], %[" #O4 "], 3 \n\t" \ - "shra.ph %[" #O5 "], %[" #O5 "], 3 \n\t" \ - "shra.ph %[" #O6 "], %[" #O6 "], 3 \n\t" \ - "shra.ph %[" #O7 "], %[" #O7 "], 3 \n\t" - -// precrq.ph.w temp0, temp8, temp2 -// temp0 = temp8[31..16] | temp2[31..16] -// ins temp2, temp8, 16, 16 -// temp2 = temp8[31..16] | temp2[15..0] -// O - output -// IO - input/output -// I - input (macro doesn't change it) -#define PACK_2_HALVES_TO_WORD(O0, O1, O2, O3, \ - IO0, IO1, IO2, IO3, \ - I0, I1, I2, I3) \ - "precrq.ph.w %[" #O0 "], %[" #I0 "], %[" #IO0 "] \n\t" \ - "precrq.ph.w %[" #O1 "], %[" #I1 "], %[" #IO1 "] \n\t" \ - "ins %[" #IO0 "], %[" #I0 "], 16, 16 \n\t" \ - "ins %[" #IO1 "], %[" #I1 "], 16, 16 \n\t" \ - "precrq.ph.w %[" #O2 "], %[" #I2 "], %[" #IO2 "] \n\t" \ - "precrq.ph.w %[" #O3 "], %[" #I3 "], %[" #IO3 "] \n\t" \ - "ins %[" #IO2 "], %[" #I2 "], 16, 16 \n\t" \ - "ins %[" #IO3 "], %[" #I3 "], 16, 16 \n\t" - -// preceu.ph.qbr temp0, temp8 -// temp0 = 0 | 0 | temp8[23..16] | temp8[7..0] -// preceu.ph.qbl temp1, temp8 -// temp1 = temp8[23..16] | temp8[7..0] | 0 | 0 -// O - output -// I - input (macro doesn't change it) -#define CONVERT_2_BYTES_TO_HALF(O0, O1, O2, O3, O4, O5, O6, O7, \ - I0, I1, I2, I3) \ - "preceu.ph.qbr %[" #O0 "], %[" #I0 "] \n\t" \ - "preceu.ph.qbl %[" #O1 "], %[" #I0 "] \n\t" \ - "preceu.ph.qbr %[" #O2 "], %[" #I1 "] \n\t" \ - "preceu.ph.qbl %[" #O3 "], %[" #I1 "] \n\t" \ - "preceu.ph.qbr %[" #O4 "], %[" #I2 "] \n\t" \ - "preceu.ph.qbl %[" #O5 "], %[" #I2 "] \n\t" \ - "preceu.ph.qbr %[" #O6 "], %[" #I3 "] \n\t" \ - "preceu.ph.qbl %[" #O7 "], %[" #I3 "] \n\t" - -// temp0[31..16 | 15..0] = temp0[31..16 | 15..0] + temp8[31..16 | 15..0] -// temp0[31..16 | 15..0] = temp0[31..16 <<(s) 7 | 15..0 <<(s) 7] -// temp1..temp7 same as temp0 -// precrqu_s.qb.ph temp0, temp1, temp0: -// temp0 = temp1[31..24] | temp1[15..8] | temp0[31..24] | temp0[15..8] -// store temp0 to dst -// IO - input/output -// I - input (macro doesn't change it) -#define STORE_SAT_SUM_X2(IO0, IO1, IO2, IO3, IO4, IO5, IO6, IO7, \ - I0, I1, I2, I3, I4, I5, I6, I7, \ - I8, I9, I10, I11, I12, I13) \ - "addq.ph %[" #IO0 "], %[" #IO0 "], %[" #I0 "] \n\t" \ - "addq.ph %[" #IO1 "], %[" #IO1 "], %[" #I1 "] \n\t" \ - "addq.ph %[" #IO2 "], %[" #IO2 "], %[" #I2 "] \n\t" \ - "addq.ph %[" #IO3 "], %[" #IO3 "], %[" #I3 "] \n\t" \ - "addq.ph %[" #IO4 "], %[" #IO4 "], %[" #I4 "] \n\t" \ - "addq.ph %[" #IO5 "], %[" #IO5 "], %[" #I5 "] \n\t" \ - "addq.ph %[" #IO6 "], %[" #IO6 "], %[" #I6 "] \n\t" \ - "addq.ph %[" #IO7 "], %[" #IO7 "], %[" #I7 "] \n\t" \ - "shll_s.ph %[" #IO0 "], %[" #IO0 "], 7 \n\t" \ - "shll_s.ph %[" #IO1 "], %[" #IO1 "], 7 \n\t" \ - "shll_s.ph %[" #IO2 "], %[" #IO2 "], 7 \n\t" \ - "shll_s.ph %[" #IO3 "], %[" #IO3 "], 7 \n\t" \ - "shll_s.ph %[" #IO4 "], %[" #IO4 "], 7 \n\t" \ - "shll_s.ph %[" #IO5 "], %[" #IO5 "], 7 \n\t" \ - "shll_s.ph %[" #IO6 "], %[" #IO6 "], 7 \n\t" \ - "shll_s.ph %[" #IO7 "], %[" #IO7 "], 7 \n\t" \ - "precrqu_s.qb.ph %[" #IO0 "], %[" #IO1 "], %[" #IO0 "] \n\t" \ - "precrqu_s.qb.ph %[" #IO2 "], %[" #IO3 "], %[" #IO2 "] \n\t" \ - "precrqu_s.qb.ph %[" #IO4 "], %[" #IO5 "], %[" #IO4 "] \n\t" \ - "precrqu_s.qb.ph %[" #IO6 "], %[" #IO7 "], %[" #IO6 "] \n\t" \ - "usw %[" #IO0 "], " XSTR(I13) "*" #I9 "(%[" #I8 "]) \n\t" \ - "usw %[" #IO2 "], " XSTR(I13) "*" #I10 "(%[" #I8 "]) \n\t" \ - "usw %[" #IO4 "], " XSTR(I13) "*" #I11 "(%[" #I8 "]) \n\t" \ - "usw %[" #IO6 "], " XSTR(I13) "*" #I12 "(%[" #I8 "]) \n\t" - -#define OUTPUT_EARLY_CLOBBER_REGS_10() \ - : [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), \ - [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [temp6]"=&r"(temp6), \ - [temp7]"=&r"(temp7), [temp8]"=&r"(temp8), [temp9]"=&r"(temp9), \ - [temp10]"=&r"(temp10) - -#define OUTPUT_EARLY_CLOBBER_REGS_18() \ - OUTPUT_EARLY_CLOBBER_REGS_10(), \ - [temp11]"=&r"(temp11), [temp12]"=&r"(temp12), [temp13]"=&r"(temp13), \ - [temp14]"=&r"(temp14), [temp15]"=&r"(temp15), [temp16]"=&r"(temp16), \ - [temp17]"=&r"(temp17), [temp18]"=&r"(temp18) - -#endif // WEBP_DSP_MIPS_MACRO_H_ diff --git a/drivers/webp/dsp/msa_macro.h b/drivers/webp/dsp/msa_macro.h deleted file mode 100644 index 5c707f476a..0000000000 --- a/drivers/webp/dsp/msa_macro.h +++ /dev/null @@ -1,555 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// MSA common macros -// -// Author(s): Prashant Patil (prashant.patil@imgtec.com) - -#ifndef WEBP_DSP_MSA_MACRO_H_ -#define WEBP_DSP_MSA_MACRO_H_ - -#include <stdint.h> -#include <msa.h> - -#if defined(__clang__) - #define CLANG_BUILD -#endif - -#ifdef CLANG_BUILD - #define ADDVI_H(a, b) __msa_addvi_h((v8i16)a, b) - #define SRAI_H(a, b) __msa_srai_h((v8i16)a, b) - #define SRAI_W(a, b) __msa_srai_w((v4i32)a, b) -#else - #define ADDVI_H(a, b) (a + b) - #define SRAI_H(a, b) (a >> b) - #define SRAI_W(a, b) (a >> b) -#endif - -#define LD_B(RTYPE, psrc) *((RTYPE*)(psrc)) -#define LD_UB(...) LD_B(v16u8, __VA_ARGS__) -#define LD_SB(...) LD_B(v16i8, __VA_ARGS__) - -#define LD_H(RTYPE, psrc) *((RTYPE*)(psrc)) -#define LD_UH(...) LD_H(v8u16, __VA_ARGS__) -#define LD_SH(...) LD_H(v8i16, __VA_ARGS__) - -#define LD_W(RTYPE, psrc) *((RTYPE*)(psrc)) -#define LD_UW(...) LD_W(v4u32, __VA_ARGS__) -#define LD_SW(...) LD_W(v4i32, __VA_ARGS__) - -#define ST_B(RTYPE, in, pdst) *((RTYPE*)(pdst)) = in -#define ST_UB(...) ST_B(v16u8, __VA_ARGS__) -#define ST_SB(...) ST_B(v16i8, __VA_ARGS__) - -#define ST_H(RTYPE, in, pdst) *((RTYPE*)(pdst)) = in -#define ST_UH(...) ST_H(v8u16, __VA_ARGS__) -#define ST_SH(...) ST_H(v8i16, __VA_ARGS__) - -#define ST_W(RTYPE, in, pdst) *((RTYPE*)(pdst)) = in -#define ST_UW(...) ST_W(v4u32, __VA_ARGS__) -#define ST_SW(...) ST_W(v4i32, __VA_ARGS__) - -#define MSA_LOAD_FUNC(TYPE, INSTR, FUNC_NAME) \ - static inline TYPE FUNC_NAME(const void* const psrc) { \ - const uint8_t* const psrc_m = (const uint8_t*)psrc; \ - TYPE val_m; \ - asm volatile ( \ - "" #INSTR " %[val_m], %[psrc_m] \n\t" \ - : [val_m] "=r" (val_m) \ - : [psrc_m] "m" (*psrc_m)); \ - return val_m; \ - } - -#define MSA_LOAD(psrc, FUNC_NAME) FUNC_NAME(psrc) - -#define MSA_STORE_FUNC(TYPE, INSTR, FUNC_NAME) \ - static inline void FUNC_NAME(TYPE val, void* const pdst) { \ - uint8_t* const pdst_m = (uint8_t*)pdst; \ - TYPE val_m = val; \ - asm volatile ( \ - " " #INSTR " %[val_m], %[pdst_m] \n\t" \ - : [pdst_m] "=m" (*pdst_m) \ - : [val_m] "r" (val_m)); \ - } - -#define MSA_STORE(val, pdst, FUNC_NAME) FUNC_NAME(val, pdst) - -#if (__mips_isa_rev >= 6) - MSA_LOAD_FUNC(uint16_t, lh, msa_lh); - #define LH(psrc) MSA_LOAD(psrc, msa_lh) - MSA_LOAD_FUNC(uint32_t, lw, msa_lw); - #define LW(psrc) MSA_LOAD(psrc, msa_lw) - #if (__mips == 64) - MSA_LOAD_FUNC(uint64_t, ld, msa_ld); - #define LD(psrc) MSA_LOAD(psrc, msa_ld) - #else // !(__mips == 64) - #define LD(psrc) ((((uint64_t)MSA_LOAD(psrc + 4, msa_lw)) << 32) | \ - MSA_LOAD(psrc, msa_lw)) - #endif // (__mips == 64) - - MSA_STORE_FUNC(uint16_t, sh, msa_sh); - #define SH(val, pdst) MSA_STORE(val, pdst, msa_sh) - MSA_STORE_FUNC(uint32_t, sw, msa_sw); - #define SW(val, pdst) MSA_STORE(val, pdst, msa_sw) - MSA_STORE_FUNC(uint64_t, sd, msa_sd); - #define SD(val, pdst) MSA_STORE(val, pdst, msa_sd) -#else // !(__mips_isa_rev >= 6) - MSA_LOAD_FUNC(uint16_t, ulh, msa_ulh); - #define LH(psrc) MSA_LOAD(psrc, msa_ulh) - MSA_LOAD_FUNC(uint32_t, ulw, msa_ulw); - #define LW(psrc) MSA_LOAD(psrc, msa_ulw) - #if (__mips == 64) - MSA_LOAD_FUNC(uint64_t, uld, msa_uld); - #define LD(psrc) MSA_LOAD(psrc, msa_uld) - #else // !(__mips == 64) - #define LD(psrc) ((((uint64_t)MSA_LOAD(psrc + 4, msa_ulw)) << 32) | \ - MSA_LOAD(psrc, msa_ulw)) - #endif // (__mips == 64) - - MSA_STORE_FUNC(uint16_t, ush, msa_ush); - #define SH(val, pdst) MSA_STORE(val, pdst, msa_ush) - MSA_STORE_FUNC(uint32_t, usw, msa_usw); - #define SW(val, pdst) MSA_STORE(val, pdst, msa_usw) - #define SD(val, pdst) { \ - uint8_t* const pdst_sd_m = (uint8_t*)(pdst); \ - const uint32_t val0_m = (uint32_t)(val & 0x00000000FFFFFFFF); \ - const uint32_t val1_m = (uint32_t)((val >> 32) & 0x00000000FFFFFFFF); \ - SW(val0_m, pdst_sd_m); \ - SW(val1_m, pdst_sd_m + 4); \ - } -#endif // (__mips_isa_rev >= 6) - -/* Description : Load 4 words with stride - * Arguments : Inputs - psrc, stride - * Outputs - out0, out1, out2, out3 - * Details : Load word in 'out0' from (psrc) - * Load word in 'out1' from (psrc + stride) - * Load word in 'out2' from (psrc + 2 * stride) - * Load word in 'out3' from (psrc + 3 * stride) - */ -#define LW4(psrc, stride, out0, out1, out2, out3) { \ - const uint8_t* ptmp = (const uint8_t*)psrc; \ - out0 = LW(ptmp); \ - ptmp += stride; \ - out1 = LW(ptmp); \ - ptmp += stride; \ - out2 = LW(ptmp); \ - ptmp += stride; \ - out3 = LW(ptmp); \ -} - -/* Description : Store 4 words with stride - * Arguments : Inputs - in0, in1, in2, in3, pdst, stride - * Details : Store word from 'in0' to (pdst) - * Store word from 'in1' to (pdst + stride) - * Store word from 'in2' to (pdst + 2 * stride) - * Store word from 'in3' to (pdst + 3 * stride) - */ -#define SW4(in0, in1, in2, in3, pdst, stride) { \ - uint8_t* ptmp = (uint8_t*)pdst; \ - SW(in0, ptmp); \ - ptmp += stride; \ - SW(in1, ptmp); \ - ptmp += stride; \ - SW(in2, ptmp); \ - ptmp += stride; \ - SW(in3, ptmp); \ -} - -/* Description : Load vectors with 16 byte elements with stride - * Arguments : Inputs - psrc, stride - * Outputs - out0, out1 - * Return Type - as per RTYPE - * Details : Load 16 byte elements in 'out0' from (psrc) - * Load 16 byte elements in 'out1' from (psrc + stride) - */ -#define LD_B2(RTYPE, psrc, stride, out0, out1) { \ - out0 = LD_B(RTYPE, psrc); \ - out1 = LD_B(RTYPE, psrc + stride); \ -} -#define LD_UB2(...) LD_B2(v16u8, __VA_ARGS__) -#define LD_SB2(...) LD_B2(v16i8, __VA_ARGS__) - -#define LD_B4(RTYPE, psrc, stride, out0, out1, out2, out3) { \ - LD_B2(RTYPE, psrc, stride, out0, out1); \ - LD_B2(RTYPE, psrc + 2 * stride , stride, out2, out3); \ -} -#define LD_UB4(...) LD_B4(v16u8, __VA_ARGS__) -#define LD_SB4(...) LD_B4(v16i8, __VA_ARGS__) - -/* Description : Load vectors with 8 halfword elements with stride - * Arguments : Inputs - psrc, stride - * Outputs - out0, out1 - * Details : Load 8 halfword elements in 'out0' from (psrc) - * Load 8 halfword elements in 'out1' from (psrc + stride) - */ -#define LD_H2(RTYPE, psrc, stride, out0, out1) { \ - out0 = LD_H(RTYPE, psrc); \ - out1 = LD_H(RTYPE, psrc + stride); \ -} -#define LD_UH2(...) LD_H2(v8u16, __VA_ARGS__) -#define LD_SH2(...) LD_H2(v8i16, __VA_ARGS__) - -/* Description : Store 4x4 byte block to destination memory from input vector - * Arguments : Inputs - in0, in1, pdst, stride - * Details : 'Idx0' word element from input vector 'in0' is copied to the - * GP register and stored to (pdst) - * 'Idx1' word element from input vector 'in0' is copied to the - * GP register and stored to (pdst + stride) - * 'Idx2' word element from input vector 'in0' is copied to the - * GP register and stored to (pdst + 2 * stride) - * 'Idx3' word element from input vector 'in0' is copied to the - * GP register and stored to (pdst + 3 * stride) - */ -#define ST4x4_UB(in0, in1, idx0, idx1, idx2, idx3, pdst, stride) { \ - uint8_t* const pblk_4x4_m = (uint8_t*)pdst; \ - const uint32_t out0_m = __msa_copy_s_w((v4i32)in0, idx0); \ - const uint32_t out1_m = __msa_copy_s_w((v4i32)in0, idx1); \ - const uint32_t out2_m = __msa_copy_s_w((v4i32)in1, idx2); \ - const uint32_t out3_m = __msa_copy_s_w((v4i32)in1, idx3); \ - SW4(out0_m, out1_m, out2_m, out3_m, pblk_4x4_m, stride); \ -} - -/* Description : Immediate number of elements to slide - * Arguments : Inputs - in0, in1, slide_val - * Outputs - out - * Return Type - as per RTYPE - * Details : Byte elements from 'in1' vector are slid into 'in0' by - * value specified in the 'slide_val' - */ -#define SLDI_B(RTYPE, in0, in1, slide_val) \ - (RTYPE)__msa_sldi_b((v16i8)in0, (v16i8)in1, slide_val) \ - -#define SLDI_UB(...) SLDI_B(v16u8, __VA_ARGS__) -#define SLDI_SB(...) SLDI_B(v16i8, __VA_ARGS__) -#define SLDI_SH(...) SLDI_B(v8i16, __VA_ARGS__) - -/* Description : Shuffle halfword vector elements as per mask vector - * Arguments : Inputs - in0, in1, in2, in3, mask0, mask1 - * Outputs - out0, out1 - * Return Type - as per RTYPE - * Details : halfword elements from 'in0' & 'in1' are copied selectively to - * 'out0' as per control vector 'mask0' - */ -#define VSHF_H2(RTYPE, in0, in1, in2, in3, mask0, mask1, out0, out1) { \ - out0 = (RTYPE)__msa_vshf_h((v8i16)mask0, (v8i16)in1, (v8i16)in0); \ - out1 = (RTYPE)__msa_vshf_h((v8i16)mask1, (v8i16)in3, (v8i16)in2); \ -} -#define VSHF_H2_UH(...) VSHF_H2(v8u16, __VA_ARGS__) -#define VSHF_H2_SH(...) VSHF_H2(v8i16, __VA_ARGS__) - -/* Description : Clips all signed halfword elements of input vector - * between 0 & 255 - * Arguments : Input/output - val - * Return Type - signed halfword - */ -#define CLIP_SH_0_255(val) { \ - const v8i16 max_m = __msa_ldi_h(255); \ - val = __msa_maxi_s_h((v8i16)val, 0); \ - val = __msa_min_s_h(max_m, (v8i16)val); \ -} -#define CLIP_SH2_0_255(in0, in1) { \ - CLIP_SH_0_255(in0); \ - CLIP_SH_0_255(in1); \ -} - -/* Description : Clips all signed word elements of input vector - * between 0 & 255 - * Arguments : Input/output - val - * Return Type - signed word - */ -#define CLIP_SW_0_255(val) { \ - const v4i32 max_m = __msa_ldi_w(255); \ - val = __msa_maxi_s_w((v4i32)val, 0); \ - val = __msa_min_s_w(max_m, (v4i32)val); \ -} -#define CLIP_SW4_0_255(in0, in1, in2, in3) { \ - CLIP_SW_0_255(in0); \ - CLIP_SW_0_255(in1); \ - CLIP_SW_0_255(in2); \ - CLIP_SW_0_255(in3); \ -} - -/* Description : Set element n input vector to GPR value - * Arguments : Inputs - in0, in1, in2, in3 - * Output - out - * Return Type - as per RTYPE - * Details : Set element 0 in vector 'out' to value specified in 'in0' - */ -#define INSERT_W2(RTYPE, in0, in1, out) { \ - out = (RTYPE)__msa_insert_w((v4i32)out, 0, in0); \ - out = (RTYPE)__msa_insert_w((v4i32)out, 1, in1); \ -} -#define INSERT_W2_UB(...) INSERT_W2(v16u8, __VA_ARGS__) -#define INSERT_W2_SB(...) INSERT_W2(v16i8, __VA_ARGS__) - -#define INSERT_W4(RTYPE, in0, in1, in2, in3, out) { \ - out = (RTYPE)__msa_insert_w((v4i32)out, 0, in0); \ - out = (RTYPE)__msa_insert_w((v4i32)out, 1, in1); \ - out = (RTYPE)__msa_insert_w((v4i32)out, 2, in2); \ - out = (RTYPE)__msa_insert_w((v4i32)out, 3, in3); \ -} -#define INSERT_W4_UB(...) INSERT_W4(v16u8, __VA_ARGS__) -#define INSERT_W4_SB(...) INSERT_W4(v16i8, __VA_ARGS__) -#define INSERT_W4_SW(...) INSERT_W4(v4i32, __VA_ARGS__) - -/* Description : Interleave right half of byte elements from vectors - * Arguments : Inputs - in0, in1, in2, in3 - * Outputs - out0, out1 - * Return Type - as per RTYPE - * Details : Right half of byte elements of 'in0' and 'in1' are interleaved - * and written to out0. - */ -#define ILVR_B2(RTYPE, in0, in1, in2, in3, out0, out1) { \ - out0 = (RTYPE)__msa_ilvr_b((v16i8)in0, (v16i8)in1); \ - out1 = (RTYPE)__msa_ilvr_b((v16i8)in2, (v16i8)in3); \ -} -#define ILVR_B2_UB(...) ILVR_B2(v16u8, __VA_ARGS__) -#define ILVR_B2_SB(...) ILVR_B2(v16i8, __VA_ARGS__) -#define ILVR_B2_UH(...) ILVR_B2(v8u16, __VA_ARGS__) -#define ILVR_B2_SH(...) ILVR_B2(v8i16, __VA_ARGS__) -#define ILVR_B2_SW(...) ILVR_B2(v4i32, __VA_ARGS__) - -#define ILVR_B4(RTYPE, in0, in1, in2, in3, in4, in5, in6, in7, \ - out0, out1, out2, out3) { \ - ILVR_B2(RTYPE, in0, in1, in2, in3, out0, out1); \ - ILVR_B2(RTYPE, in4, in5, in6, in7, out2, out3); \ -} -#define ILVR_B4_UB(...) ILVR_B4(v16u8, __VA_ARGS__) -#define ILVR_B4_SB(...) ILVR_B4(v16i8, __VA_ARGS__) -#define ILVR_B4_UH(...) ILVR_B4(v8u16, __VA_ARGS__) -#define ILVR_B4_SH(...) ILVR_B4(v8i16, __VA_ARGS__) -#define ILVR_B4_SW(...) ILVR_B4(v4i32, __VA_ARGS__) - -/* Description : Interleave right half of halfword elements from vectors - * Arguments : Inputs - in0, in1, in2, in3 - * Outputs - out0, out1 - * Return Type - as per RTYPE - * Details : Right half of halfword elements of 'in0' and 'in1' are - * interleaved and written to 'out0'. - */ -#define ILVR_H2(RTYPE, in0, in1, in2, in3, out0, out1) { \ - out0 = (RTYPE)__msa_ilvr_h((v8i16)in0, (v8i16)in1); \ - out1 = (RTYPE)__msa_ilvr_h((v8i16)in2, (v8i16)in3); \ -} -#define ILVR_H2_UB(...) ILVR_H2(v16u8, __VA_ARGS__) -#define ILVR_H2_SH(...) ILVR_H2(v8i16, __VA_ARGS__) -#define ILVR_H2_SW(...) ILVR_H2(v4i32, __VA_ARGS__) - -#define ILVR_H4(RTYPE, in0, in1, in2, in3, in4, in5, in6, in7, \ - out0, out1, out2, out3) { \ - ILVR_H2(RTYPE, in0, in1, in2, in3, out0, out1); \ - ILVR_H2(RTYPE, in4, in5, in6, in7, out2, out3); \ -} -#define ILVR_H4_UB(...) ILVR_H4(v16u8, __VA_ARGS__) -#define ILVR_H4_SH(...) ILVR_H4(v8i16, __VA_ARGS__) -#define ILVR_H4_SW(...) ILVR_H4(v4i32, __VA_ARGS__) - -/* Description : Interleave right half of double word elements from vectors - * Arguments : Inputs - in0, in1, in2, in3 - * Outputs - out0, out1 - * Return Type - as per RTYPE - * Details : Right half of double word elements of 'in0' and 'in1' are - * interleaved and written to 'out0'. - */ -#define ILVR_D2(RTYPE, in0, in1, in2, in3, out0, out1) { \ - out0 = (RTYPE)__msa_ilvr_d((v2i64)in0, (v2i64)in1); \ - out1 = (RTYPE)__msa_ilvr_d((v2i64)in2, (v2i64)in3); \ -} -#define ILVR_D2_UB(...) ILVR_D2(v16u8, __VA_ARGS__) -#define ILVR_D2_SB(...) ILVR_D2(v16i8, __VA_ARGS__) -#define ILVR_D2_SH(...) ILVR_D2(v8i16, __VA_ARGS__) - -#define ILVRL_H2(RTYPE, in0, in1, out0, out1) { \ - out0 = (RTYPE)__msa_ilvr_h((v8i16)in0, (v8i16)in1); \ - out1 = (RTYPE)__msa_ilvl_h((v8i16)in0, (v8i16)in1); \ -} -#define ILVRL_H2_UB(...) ILVRL_H2(v16u8, __VA_ARGS__) -#define ILVRL_H2_SB(...) ILVRL_H2(v16i8, __VA_ARGS__) -#define ILVRL_H2_SH(...) ILVRL_H2(v8i16, __VA_ARGS__) -#define ILVRL_H2_SW(...) ILVRL_H2(v4i32, __VA_ARGS__) -#define ILVRL_H2_UW(...) ILVRL_H2(v4u32, __VA_ARGS__) - -#define ILVRL_W2(RTYPE, in0, in1, out0, out1) { \ - out0 = (RTYPE)__msa_ilvr_w((v4i32)in0, (v4i32)in1); \ - out1 = (RTYPE)__msa_ilvl_w((v4i32)in0, (v4i32)in1); \ -} -#define ILVRL_W2_UB(...) ILVRL_W2(v16u8, __VA_ARGS__) -#define ILVRL_W2_SH(...) ILVRL_W2(v8i16, __VA_ARGS__) -#define ILVRL_W2_SW(...) ILVRL_W2(v4i32, __VA_ARGS__) - -/* Description : Pack even byte elements of vector pairs - * Arguments : Inputs - in0, in1, in2, in3 - * Outputs - out0, out1 - * Return Type - as per RTYPE - * Details : Even byte elements of 'in0' are copied to the left half of - * 'out0' & even byte elements of 'in1' are copied to the right - * half of 'out0'. - */ -#define PCKEV_B2(RTYPE, in0, in1, in2, in3, out0, out1) { \ - out0 = (RTYPE)__msa_pckev_b((v16i8)in0, (v16i8)in1); \ - out1 = (RTYPE)__msa_pckev_b((v16i8)in2, (v16i8)in3); \ -} -#define PCKEV_B2_SB(...) PCKEV_B2(v16i8, __VA_ARGS__) -#define PCKEV_B2_UB(...) PCKEV_B2(v16u8, __VA_ARGS__) -#define PCKEV_B2_SH(...) PCKEV_B2(v8i16, __VA_ARGS__) -#define PCKEV_B2_SW(...) PCKEV_B2(v4i32, __VA_ARGS__) - -/* Description : Arithmetic immediate shift right all elements of word vector - * Arguments : Inputs - in0, in1, shift - * Outputs - in place operation - * Return Type - as per input vector RTYPE - * Details : Each element of vector 'in0' is right shifted by 'shift' and - * the result is written in-place. 'shift' is a GP variable. - */ -#define SRAI_W2(RTYPE, in0, in1, shift_val) { \ - in0 = (RTYPE)SRAI_W(in0, shift_val); \ - in1 = (RTYPE)SRAI_W(in1, shift_val); \ -} -#define SRAI_W2_SW(...) SRAI_W2(v4i32, __VA_ARGS__) -#define SRAI_W2_UW(...) SRAI_W2(v4u32, __VA_ARGS__) - -#define SRAI_W4(RTYPE, in0, in1, in2, in3, shift_val) { \ - SRAI_W2(RTYPE, in0, in1, shift_val); \ - SRAI_W2(RTYPE, in2, in3, shift_val); \ -} -#define SRAI_W4_SW(...) SRAI_W4(v4i32, __VA_ARGS__) -#define SRAI_W4_UW(...) SRAI_W4(v4u32, __VA_ARGS__) - -/* Description : Arithmetic shift right all elements of half-word vector - * Arguments : Inputs - in0, in1, shift - * Outputs - in place operation - * Return Type - as per input vector RTYPE - * Details : Each element of vector 'in0' is right shifted by 'shift' and - * the result is written in-place. 'shift' is a GP variable. - */ -#define SRAI_H2(RTYPE, in0, in1, shift_val) { \ - in0 = (RTYPE)SRAI_H(in0, shift_val); \ - in1 = (RTYPE)SRAI_H(in1, shift_val); \ -} -#define SRAI_H2_SH(...) SRAI_H2(v8i16, __VA_ARGS__) -#define SRAI_H2_UH(...) SRAI_H2(v8u16, __VA_ARGS__) - -/* Description : Arithmetic rounded shift right all elements of word vector - * Arguments : Inputs - in0, in1, shift - * Outputs - in place operation - * Return Type - as per input vector RTYPE - * Details : Each element of vector 'in0' is right shifted by 'shift' and - * the result is written in-place. 'shift' is a GP variable. - */ -#define SRARI_W2(RTYPE, in0, in1, shift) { \ - in0 = (RTYPE)__msa_srari_w((v4i32)in0, shift); \ - in1 = (RTYPE)__msa_srari_w((v4i32)in1, shift); \ -} -#define SRARI_W2_SW(...) SRARI_W2(v4i32, __VA_ARGS__) - -#define SRARI_W4(RTYPE, in0, in1, in2, in3, shift) { \ - SRARI_W2(RTYPE, in0, in1, shift); \ - SRARI_W2(RTYPE, in2, in3, shift); \ -} -#define SRARI_W4_SH(...) SRARI_W4(v8i16, __VA_ARGS__) -#define SRARI_W4_UW(...) SRARI_W4(v4u32, __VA_ARGS__) -#define SRARI_W4_SW(...) SRARI_W4(v4i32, __VA_ARGS__) - -/* Description : Addition of 2 pairs of half-word vectors - * Arguments : Inputs - in0, in1, in2, in3 - * Outputs - out0, out1 - * Details : Each element in 'in0' is added to 'in1' and result is written - * to 'out0'. - */ -#define ADDVI_H2(RTYPE, in0, in1, in2, in3, out0, out1) { \ - out0 = (RTYPE)ADDVI_H(in0, in1); \ - out1 = (RTYPE)ADDVI_H(in2, in3); \ -} -#define ADDVI_H2_SH(...) ADDVI_H2(v8i16, __VA_ARGS__) -#define ADDVI_H2_UH(...) ADDVI_H2(v8u16, __VA_ARGS__) - -/* Description : Addition of 2 pairs of vectors - * Arguments : Inputs - in0, in1, in2, in3 - * Outputs - out0, out1 - * Details : Each element in 'in0' is added to 'in1' and result is written - * to 'out0'. - */ -#define ADD2(in0, in1, in2, in3, out0, out1) { \ - out0 = in0 + in1; \ - out1 = in2 + in3; \ -} -#define ADD4(in0, in1, in2, in3, in4, in5, in6, in7, \ - out0, out1, out2, out3) { \ - ADD2(in0, in1, in2, in3, out0, out1); \ - ADD2(in4, in5, in6, in7, out2, out3); \ -} - -/* Description : Sign extend halfword elements from input vector and return - * the result in pair of vectors - * Arguments : Input - in (halfword vector) - * Outputs - out0, out1 (sign extended word vectors) - * Return Type - signed word - * Details : Sign bit of halfword elements from input vector 'in' is - * extracted and interleaved right with same vector 'in0' to - * generate 4 signed word elements in 'out0' - * Then interleaved left with same vector 'in0' to - * generate 4 signed word elements in 'out1' - */ -#define UNPCK_SH_SW(in, out0, out1) { \ - const v8i16 tmp_m = __msa_clti_s_h((v8i16)in, 0); \ - ILVRL_H2_SW(tmp_m, in, out0, out1); \ -} - -/* Description : Butterfly of 4 input vectors - * Arguments : Inputs - in0, in1, in2, in3 - * Outputs - out0, out1, out2, out3 - * Details : Butterfly operation - */ -#define BUTTERFLY_4(in0, in1, in2, in3, out0, out1, out2, out3) { \ - out0 = in0 + in3; \ - out1 = in1 + in2; \ - out2 = in1 - in2; \ - out3 = in0 - in3; \ -} - -/* Description : Transpose 4x4 block with word elements in vectors - * Arguments : Inputs - in0, in1, in2, in3 - * Outputs - out0, out1, out2, out3 - * Return Type - as per RTYPE - */ -#define TRANSPOSE4x4_W(RTYPE, in0, in1, in2, in3, out0, out1, out2, out3) { \ - v4i32 s0_m, s1_m, s2_m, s3_m; \ - ILVRL_W2_SW(in1, in0, s0_m, s1_m); \ - ILVRL_W2_SW(in3, in2, s2_m, s3_m); \ - out0 = (RTYPE)__msa_ilvr_d((v2i64)s2_m, (v2i64)s0_m); \ - out1 = (RTYPE)__msa_ilvl_d((v2i64)s2_m, (v2i64)s0_m); \ - out2 = (RTYPE)__msa_ilvr_d((v2i64)s3_m, (v2i64)s1_m); \ - out3 = (RTYPE)__msa_ilvl_d((v2i64)s3_m, (v2i64)s1_m); \ -} -#define TRANSPOSE4x4_SW_SW(...) TRANSPOSE4x4_W(v4i32, __VA_ARGS__) - -/* Description : Add block 4x4 - * Arguments : Inputs - in0, in1, in2, in3, pdst, stride - * Details : Least significant 4 bytes from each input vector are added to - * the destination bytes, clipped between 0-255 and stored. - */ -#define ADDBLK_ST4x4_UB(in0, in1, in2, in3, pdst, stride) { \ - uint32_t src0_m, src1_m, src2_m, src3_m; \ - v8i16 inp0_m, inp1_m, res0_m, res1_m; \ - v16i8 dst0_m = { 0 }; \ - v16i8 dst1_m = { 0 }; \ - const v16i8 zero_m = { 0 }; \ - ILVR_D2_SH(in1, in0, in3, in2, inp0_m, inp1_m); \ - LW4(pdst, stride, src0_m, src1_m, src2_m, src3_m); \ - INSERT_W2_SB(src0_m, src1_m, dst0_m); \ - INSERT_W2_SB(src2_m, src3_m, dst1_m); \ - ILVR_B2_SH(zero_m, dst0_m, zero_m, dst1_m, res0_m, res1_m); \ - ADD2(res0_m, inp0_m, res1_m, inp1_m, res0_m, res1_m); \ - CLIP_SH2_0_255(res0_m, res1_m); \ - PCKEV_B2_SB(res0_m, res0_m, res1_m, res1_m, dst0_m, dst1_m); \ - ST4x4_UB(dst0_m, dst1_m, 0, 1, 0, 1, pdst, stride); \ -} - -#endif /* WEBP_DSP_MSA_MACRO_H_ */ diff --git a/drivers/webp/dsp/neon.h b/drivers/webp/dsp/neon.h deleted file mode 100644 index 0a06266848..0000000000 --- a/drivers/webp/dsp/neon.h +++ /dev/null @@ -1,82 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// NEON common code. - -#ifndef WEBP_DSP_NEON_H_ -#define WEBP_DSP_NEON_H_ - -#include <arm_neon.h> - -#include "./dsp.h" - -// Right now, some intrinsics functions seem slower, so we disable them -// everywhere except aarch64 where the inline assembly is incompatible. -#if defined(__aarch64__) -#define WEBP_USE_INTRINSICS // use intrinsics when possible -#endif - -#define INIT_VECTOR2(v, a, b) do { \ - v.val[0] = a; \ - v.val[1] = b; \ -} while (0) - -#define INIT_VECTOR3(v, a, b, c) do { \ - v.val[0] = a; \ - v.val[1] = b; \ - v.val[2] = c; \ -} while (0) - -#define INIT_VECTOR4(v, a, b, c, d) do { \ - v.val[0] = a; \ - v.val[1] = b; \ - v.val[2] = c; \ - v.val[3] = d; \ -} while (0) - -// if using intrinsics, this flag avoids some functions that make gcc-4.6.3 -// crash ("internal compiler error: in immed_double_const, at emit-rtl."). -// (probably similar to gcc.gnu.org/bugzilla/show_bug.cgi?id=48183) -#if !(LOCAL_GCC_PREREQ(4,8) || defined(__aarch64__)) -#define WORK_AROUND_GCC -#endif - -static WEBP_INLINE int32x4x4_t Transpose4x4(const int32x4x4_t rows) { - uint64x2x2_t row01, row23; - - row01.val[0] = vreinterpretq_u64_s32(rows.val[0]); - row01.val[1] = vreinterpretq_u64_s32(rows.val[1]); - row23.val[0] = vreinterpretq_u64_s32(rows.val[2]); - row23.val[1] = vreinterpretq_u64_s32(rows.val[3]); - // Transpose 64-bit values (there's no vswp equivalent) - { - const uint64x1_t row0h = vget_high_u64(row01.val[0]); - const uint64x1_t row2l = vget_low_u64(row23.val[0]); - const uint64x1_t row1h = vget_high_u64(row01.val[1]); - const uint64x1_t row3l = vget_low_u64(row23.val[1]); - row01.val[0] = vcombine_u64(vget_low_u64(row01.val[0]), row2l); - row23.val[0] = vcombine_u64(row0h, vget_high_u64(row23.val[0])); - row01.val[1] = vcombine_u64(vget_low_u64(row01.val[1]), row3l); - row23.val[1] = vcombine_u64(row1h, vget_high_u64(row23.val[1])); - } - { - const int32x4x2_t out01 = vtrnq_s32(vreinterpretq_s32_u64(row01.val[0]), - vreinterpretq_s32_u64(row01.val[1])); - const int32x4x2_t out23 = vtrnq_s32(vreinterpretq_s32_u64(row23.val[0]), - vreinterpretq_s32_u64(row23.val[1])); - int32x4x4_t out; - out.val[0] = out01.val[0]; - out.val[1] = out01.val[1]; - out.val[2] = out23.val[0]; - out.val[3] = out23.val[1]; - return out; - } -} - -#endif // WEBP_DSP_NEON_H_ diff --git a/drivers/webp/dsp/rescaler.c b/drivers/webp/dsp/rescaler.c deleted file mode 100644 index bc743d5dc5..0000000000 --- a/drivers/webp/dsp/rescaler.c +++ /dev/null @@ -1,238 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Rescaling functions -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> - -#include "./dsp.h" -#include "../utils/rescaler.h" - -//------------------------------------------------------------------------------ -// Implementations of critical functions ImportRow / ExportRow - -#define ROUNDER (WEBP_RESCALER_ONE >> 1) -#define MULT_FIX(x, y) (((uint64_t)(x) * (y) + ROUNDER) >> WEBP_RESCALER_RFIX) - -//------------------------------------------------------------------------------ -// Row import - -void WebPRescalerImportRowExpandC(WebPRescaler* const wrk, const uint8_t* src) { - const int x_stride = wrk->num_channels; - const int x_out_max = wrk->dst_width * wrk->num_channels; - int channel; - assert(!WebPRescalerInputDone(wrk)); - assert(wrk->x_expand); - for (channel = 0; channel < x_stride; ++channel) { - int x_in = channel; - int x_out = channel; - // simple bilinear interpolation - int accum = wrk->x_add; - int left = src[x_in]; - int right = (wrk->src_width > 1) ? src[x_in + x_stride] : left; - x_in += x_stride; - while (1) { - wrk->frow[x_out] = right * wrk->x_add + (left - right) * accum; - x_out += x_stride; - if (x_out >= x_out_max) break; - accum -= wrk->x_sub; - if (accum < 0) { - left = right; - x_in += x_stride; - assert(x_in < wrk->src_width * x_stride); - right = src[x_in]; - accum += wrk->x_add; - } - } - assert(wrk->x_sub == 0 /* <- special case for src_width=1 */ || accum == 0); - } -} - -void WebPRescalerImportRowShrinkC(WebPRescaler* const wrk, const uint8_t* src) { - const int x_stride = wrk->num_channels; - const int x_out_max = wrk->dst_width * wrk->num_channels; - int channel; - assert(!WebPRescalerInputDone(wrk)); - assert(!wrk->x_expand); - for (channel = 0; channel < x_stride; ++channel) { - int x_in = channel; - int x_out = channel; - uint32_t sum = 0; - int accum = 0; - while (x_out < x_out_max) { - uint32_t base = 0; - accum += wrk->x_add; - while (accum > 0) { - accum -= wrk->x_sub; - assert(x_in < wrk->src_width * x_stride); - base = src[x_in]; - sum += base; - x_in += x_stride; - } - { // Emit next horizontal pixel. - const rescaler_t frac = base * (-accum); - wrk->frow[x_out] = sum * wrk->x_sub - frac; - // fresh fractional start for next pixel - sum = (int)MULT_FIX(frac, wrk->fx_scale); - } - x_out += x_stride; - } - assert(accum == 0); - } -} - -//------------------------------------------------------------------------------ -// Row export - -void WebPRescalerExportRowExpandC(WebPRescaler* const wrk) { - int x_out; - uint8_t* const dst = wrk->dst; - rescaler_t* const irow = wrk->irow; - const int x_out_max = wrk->dst_width * wrk->num_channels; - const rescaler_t* const frow = wrk->frow; - assert(!WebPRescalerOutputDone(wrk)); - assert(wrk->y_accum <= 0); - assert(wrk->y_expand); - assert(wrk->y_sub != 0); - if (wrk->y_accum == 0) { - for (x_out = 0; x_out < x_out_max; ++x_out) { - const uint32_t J = frow[x_out]; - const int v = (int)MULT_FIX(J, wrk->fy_scale); - assert(v >= 0 && v <= 255); - dst[x_out] = v; - } - } else { - const uint32_t B = WEBP_RESCALER_FRAC(-wrk->y_accum, wrk->y_sub); - const uint32_t A = (uint32_t)(WEBP_RESCALER_ONE - B); - for (x_out = 0; x_out < x_out_max; ++x_out) { - const uint64_t I = (uint64_t)A * frow[x_out] - + (uint64_t)B * irow[x_out]; - const uint32_t J = (uint32_t)((I + ROUNDER) >> WEBP_RESCALER_RFIX); - const int v = (int)MULT_FIX(J, wrk->fy_scale); - assert(v >= 0 && v <= 255); - dst[x_out] = v; - } - } -} - -void WebPRescalerExportRowShrinkC(WebPRescaler* const wrk) { - int x_out; - uint8_t* const dst = wrk->dst; - rescaler_t* const irow = wrk->irow; - const int x_out_max = wrk->dst_width * wrk->num_channels; - const rescaler_t* const frow = wrk->frow; - const uint32_t yscale = wrk->fy_scale * (-wrk->y_accum); - assert(!WebPRescalerOutputDone(wrk)); - assert(wrk->y_accum <= 0); - assert(!wrk->y_expand); - if (yscale) { - for (x_out = 0; x_out < x_out_max; ++x_out) { - const uint32_t frac = (uint32_t)MULT_FIX(frow[x_out], yscale); - const int v = (int)MULT_FIX(irow[x_out] - frac, wrk->fxy_scale); - assert(v >= 0 && v <= 255); - dst[x_out] = v; - irow[x_out] = frac; // new fractional start - } - } else { - for (x_out = 0; x_out < x_out_max; ++x_out) { - const int v = (int)MULT_FIX(irow[x_out], wrk->fxy_scale); - assert(v >= 0 && v <= 255); - dst[x_out] = v; - irow[x_out] = 0; - } - } -} - -#undef MULT_FIX -#undef ROUNDER - -//------------------------------------------------------------------------------ -// Main entry calls - -void WebPRescalerImportRow(WebPRescaler* const wrk, const uint8_t* src) { - assert(!WebPRescalerInputDone(wrk)); - if (!wrk->x_expand) { - WebPRescalerImportRowShrink(wrk, src); - } else { - WebPRescalerImportRowExpand(wrk, src); - } -} - -void WebPRescalerExportRow(WebPRescaler* const wrk) { - if (wrk->y_accum <= 0) { - assert(!WebPRescalerOutputDone(wrk)); - if (wrk->y_expand) { - WebPRescalerExportRowExpand(wrk); - } else if (wrk->fxy_scale) { - WebPRescalerExportRowShrink(wrk); - } else { // very special case for src = dst = 1x1 - int i; - assert(wrk->src_width == 1 && wrk->dst_width <= 2); - assert(wrk->src_height == 1 && wrk->dst_height == 1); - for (i = 0; i < wrk->num_channels * wrk->dst_width; ++i) { - wrk->dst[i] = wrk->irow[i]; - wrk->irow[i] = 0; - } - } - wrk->y_accum += wrk->y_add; - wrk->dst += wrk->dst_stride; - ++wrk->dst_y; - } -} - -//------------------------------------------------------------------------------ - -WebPRescalerImportRowFunc WebPRescalerImportRowExpand; -WebPRescalerImportRowFunc WebPRescalerImportRowShrink; - -WebPRescalerExportRowFunc WebPRescalerExportRowExpand; -WebPRescalerExportRowFunc WebPRescalerExportRowShrink; - -extern void WebPRescalerDspInitSSE2(void); -extern void WebPRescalerDspInitMIPS32(void); -extern void WebPRescalerDspInitMIPSdspR2(void); -extern void WebPRescalerDspInitNEON(void); - -static volatile VP8CPUInfo rescaler_last_cpuinfo_used = - (VP8CPUInfo)&rescaler_last_cpuinfo_used; - -WEBP_TSAN_IGNORE_FUNCTION void WebPRescalerDspInit(void) { - if (rescaler_last_cpuinfo_used == VP8GetCPUInfo) return; - - WebPRescalerImportRowExpand = WebPRescalerImportRowExpandC; - WebPRescalerImportRowShrink = WebPRescalerImportRowShrinkC; - WebPRescalerExportRowExpand = WebPRescalerExportRowExpandC; - WebPRescalerExportRowShrink = WebPRescalerExportRowShrinkC; - - if (VP8GetCPUInfo != NULL) { -#if defined(WEBP_USE_SSE2) - if (VP8GetCPUInfo(kSSE2)) { - WebPRescalerDspInitSSE2(); - } -#endif -#if defined(WEBP_USE_NEON) - if (VP8GetCPUInfo(kNEON)) { - WebPRescalerDspInitNEON(); - } -#endif -#if defined(WEBP_USE_MIPS32) - if (VP8GetCPUInfo(kMIPS32)) { - WebPRescalerDspInitMIPS32(); - } -#endif -#if defined(WEBP_USE_MIPS_DSP_R2) - if (VP8GetCPUInfo(kMIPSdspR2)) { - WebPRescalerDspInitMIPSdspR2(); - } -#endif - } - rescaler_last_cpuinfo_used = VP8GetCPUInfo; -} diff --git a/drivers/webp/dsp/rescaler_mips32.c b/drivers/webp/dsp/rescaler_mips32.c deleted file mode 100644 index ddaa391336..0000000000 --- a/drivers/webp/dsp/rescaler_mips32.c +++ /dev/null @@ -1,291 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// MIPS version of rescaling functions -// -// Author(s): Djordje Pesut (djordje.pesut@imgtec.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_MIPS32) - -#include <assert.h> -#include "../utils/rescaler.h" - -//------------------------------------------------------------------------------ -// Row import - -static void ImportRowShrink(WebPRescaler* const wrk, const uint8_t* src) { - const int x_stride = wrk->num_channels; - const int x_out_max = wrk->dst_width * wrk->num_channels; - const int fx_scale = wrk->fx_scale; - const int x_add = wrk->x_add; - const int x_sub = wrk->x_sub; - const int x_stride1 = x_stride << 2; - int channel; - assert(!wrk->x_expand); - assert(!WebPRescalerInputDone(wrk)); - - for (channel = 0; channel < x_stride; ++channel) { - const uint8_t* src1 = src + channel; - rescaler_t* frow = wrk->frow + channel; - int temp1, temp2, temp3; - int base, frac, sum; - int accum, accum1; - int loop_c = x_out_max - channel; - - __asm__ volatile ( - "li %[temp1], 0x8000 \n\t" - "li %[temp2], 0x10000 \n\t" - "li %[sum], 0 \n\t" - "li %[accum], 0 \n\t" - "1: \n\t" - "addu %[accum], %[accum], %[x_add] \n\t" - "li %[base], 0 \n\t" - "blez %[accum], 3f \n\t" - "2: \n\t" - "lbu %[base], 0(%[src1]) \n\t" - "subu %[accum], %[accum], %[x_sub] \n\t" - "addu %[src1], %[src1], %[x_stride] \n\t" - "addu %[sum], %[sum], %[base] \n\t" - "bgtz %[accum], 2b \n\t" - "3: \n\t" - "negu %[accum1], %[accum] \n\t" - "mul %[frac], %[base], %[accum1] \n\t" - "mul %[temp3], %[sum], %[x_sub] \n\t" - "subu %[loop_c], %[loop_c], %[x_stride] \n\t" - "mult %[temp1], %[temp2] \n\t" - "maddu %[frac], %[fx_scale] \n\t" - "mfhi %[sum] \n\t" - "subu %[temp3], %[temp3], %[frac] \n\t" - "sw %[temp3], 0(%[frow]) \n\t" - "addu %[frow], %[frow], %[x_stride1] \n\t" - "bgtz %[loop_c], 1b \n\t" - : [accum]"=&r"(accum), [src1]"+r"(src1), [temp3]"=&r"(temp3), - [sum]"=&r"(sum), [base]"=&r"(base), [frac]"=&r"(frac), - [frow]"+r"(frow), [accum1]"=&r"(accum1), - [temp2]"=&r"(temp2), [temp1]"=&r"(temp1) - : [x_stride]"r"(x_stride), [fx_scale]"r"(fx_scale), - [x_sub]"r"(x_sub), [x_add]"r"(x_add), - [loop_c]"r"(loop_c), [x_stride1]"r"(x_stride1) - : "memory", "hi", "lo" - ); - assert(accum == 0); - } -} - -static void ImportRowExpand(WebPRescaler* const wrk, const uint8_t* src) { - const int x_stride = wrk->num_channels; - const int x_out_max = wrk->dst_width * wrk->num_channels; - const int x_add = wrk->x_add; - const int x_sub = wrk->x_sub; - const int src_width = wrk->src_width; - const int x_stride1 = x_stride << 2; - int channel; - assert(wrk->x_expand); - assert(!WebPRescalerInputDone(wrk)); - - for (channel = 0; channel < x_stride; ++channel) { - const uint8_t* src1 = src + channel; - rescaler_t* frow = wrk->frow + channel; - int temp1, temp2, temp3, temp4; - int frac; - int accum; - int x_out = channel; - - __asm__ volatile ( - "addiu %[temp3], %[src_width], -1 \n\t" - "lbu %[temp2], 0(%[src1]) \n\t" - "addu %[src1], %[src1], %[x_stride] \n\t" - "bgtz %[temp3], 0f \n\t" - "addiu %[temp1], %[temp2], 0 \n\t" - "b 3f \n\t" - "0: \n\t" - "lbu %[temp1], 0(%[src1]) \n\t" - "3: \n\t" - "addiu %[accum], %[x_add], 0 \n\t" - "1: \n\t" - "subu %[temp3], %[temp2], %[temp1] \n\t" - "mul %[temp3], %[temp3], %[accum] \n\t" - "mul %[temp4], %[temp1], %[x_add] \n\t" - "addu %[temp3], %[temp4], %[temp3] \n\t" - "sw %[temp3], 0(%[frow]) \n\t" - "addu %[frow], %[frow], %[x_stride1] \n\t" - "addu %[x_out], %[x_out], %[x_stride] \n\t" - "subu %[temp3], %[x_out], %[x_out_max] \n\t" - "bgez %[temp3], 2f \n\t" - "subu %[accum], %[accum], %[x_sub] \n\t" - "bgez %[accum], 4f \n\t" - "addiu %[temp2], %[temp1], 0 \n\t" - "addu %[src1], %[src1], %[x_stride] \n\t" - "lbu %[temp1], 0(%[src1]) \n\t" - "addu %[accum], %[accum], %[x_add] \n\t" - "4: \n\t" - "b 1b \n\t" - "2: \n\t" - : [src1]"+r"(src1), [accum]"=&r"(accum), [temp1]"=&r"(temp1), - [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), - [x_out]"+r"(x_out), [frac]"=&r"(frac), [frow]"+r"(frow) - : [x_stride]"r"(x_stride), [x_add]"r"(x_add), [x_sub]"r"(x_sub), - [x_stride1]"r"(x_stride1), [src_width]"r"(src_width), - [x_out_max]"r"(x_out_max) - : "memory", "hi", "lo" - ); - assert(wrk->x_sub == 0 /* <- special case for src_width=1 */ || accum == 0); - } -} - -//------------------------------------------------------------------------------ -// Row export - -static void ExportRowExpand(WebPRescaler* const wrk) { - uint8_t* dst = wrk->dst; - rescaler_t* irow = wrk->irow; - const int x_out_max = wrk->dst_width * wrk->num_channels; - const rescaler_t* frow = wrk->frow; - int temp0, temp1, temp3, temp4, temp5, loop_end; - const int temp2 = (int)wrk->fy_scale; - const int temp6 = x_out_max << 2; - assert(!WebPRescalerOutputDone(wrk)); - assert(wrk->y_accum <= 0); - assert(wrk->y_expand); - assert(wrk->y_sub != 0); - if (wrk->y_accum == 0) { - __asm__ volatile ( - "li %[temp3], 0x10000 \n\t" - "li %[temp4], 0x8000 \n\t" - "addu %[loop_end], %[frow], %[temp6] \n\t" - "1: \n\t" - "lw %[temp0], 0(%[frow]) \n\t" - "addiu %[dst], %[dst], 1 \n\t" - "addiu %[frow], %[frow], 4 \n\t" - "mult %[temp3], %[temp4] \n\t" - "maddu %[temp0], %[temp2] \n\t" - "mfhi %[temp5] \n\t" - "sb %[temp5], -1(%[dst]) \n\t" - "bne %[frow], %[loop_end], 1b \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp3]"=&r"(temp3), - [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [frow]"+r"(frow), - [dst]"+r"(dst), [loop_end]"=&r"(loop_end) - : [temp2]"r"(temp2), [temp6]"r"(temp6) - : "memory", "hi", "lo" - ); - } else { - const uint32_t B = WEBP_RESCALER_FRAC(-wrk->y_accum, wrk->y_sub); - const uint32_t A = (uint32_t)(WEBP_RESCALER_ONE - B); - __asm__ volatile ( - "li %[temp3], 0x10000 \n\t" - "li %[temp4], 0x8000 \n\t" - "addu %[loop_end], %[frow], %[temp6] \n\t" - "1: \n\t" - "lw %[temp0], 0(%[frow]) \n\t" - "lw %[temp1], 0(%[irow]) \n\t" - "addiu %[dst], %[dst], 1 \n\t" - "mult %[temp3], %[temp4] \n\t" - "maddu %[A], %[temp0] \n\t" - "maddu %[B], %[temp1] \n\t" - "addiu %[frow], %[frow], 4 \n\t" - "addiu %[irow], %[irow], 4 \n\t" - "mfhi %[temp5] \n\t" - "mult %[temp3], %[temp4] \n\t" - "maddu %[temp5], %[temp2] \n\t" - "mfhi %[temp5] \n\t" - "sb %[temp5], -1(%[dst]) \n\t" - "bne %[frow], %[loop_end], 1b \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp3]"=&r"(temp3), - [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [frow]"+r"(frow), - [irow]"+r"(irow), [dst]"+r"(dst), [loop_end]"=&r"(loop_end) - : [temp2]"r"(temp2), [temp6]"r"(temp6), [A]"r"(A), [B]"r"(B) - : "memory", "hi", "lo" - ); - } -} - -static void ExportRowShrink(WebPRescaler* const wrk) { - const int x_out_max = wrk->dst_width * wrk->num_channels; - uint8_t* dst = wrk->dst; - rescaler_t* irow = wrk->irow; - const rescaler_t* frow = wrk->frow; - const int yscale = wrk->fy_scale * (-wrk->y_accum); - int temp0, temp1, temp3, temp4, temp5, loop_end; - const int temp2 = (int)wrk->fxy_scale; - const int temp6 = x_out_max << 2; - - assert(!WebPRescalerOutputDone(wrk)); - assert(wrk->y_accum <= 0); - assert(!wrk->y_expand); - assert(wrk->fxy_scale != 0); - if (yscale) { - __asm__ volatile ( - "li %[temp3], 0x10000 \n\t" - "li %[temp4], 0x8000 \n\t" - "addu %[loop_end], %[frow], %[temp6] \n\t" - "1: \n\t" - "lw %[temp0], 0(%[frow]) \n\t" - "mult %[temp3], %[temp4] \n\t" - "addiu %[frow], %[frow], 4 \n\t" - "maddu %[temp0], %[yscale] \n\t" - "mfhi %[temp1] \n\t" - "lw %[temp0], 0(%[irow]) \n\t" - "addiu %[dst], %[dst], 1 \n\t" - "addiu %[irow], %[irow], 4 \n\t" - "subu %[temp0], %[temp0], %[temp1] \n\t" - "mult %[temp3], %[temp4] \n\t" - "maddu %[temp0], %[temp2] \n\t" - "mfhi %[temp5] \n\t" - "sw %[temp1], -4(%[irow]) \n\t" - "sb %[temp5], -1(%[dst]) \n\t" - "bne %[frow], %[loop_end], 1b \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp3]"=&r"(temp3), - [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [frow]"+r"(frow), - [irow]"+r"(irow), [dst]"+r"(dst), [loop_end]"=&r"(loop_end) - : [temp2]"r"(temp2), [yscale]"r"(yscale), [temp6]"r"(temp6) - : "memory", "hi", "lo" - ); - } else { - __asm__ volatile ( - "li %[temp3], 0x10000 \n\t" - "li %[temp4], 0x8000 \n\t" - "addu %[loop_end], %[irow], %[temp6] \n\t" - "1: \n\t" - "lw %[temp0], 0(%[irow]) \n\t" - "addiu %[dst], %[dst], 1 \n\t" - "addiu %[irow], %[irow], 4 \n\t" - "mult %[temp3], %[temp4] \n\t" - "maddu %[temp0], %[temp2] \n\t" - "mfhi %[temp5] \n\t" - "sw $zero, -4(%[irow]) \n\t" - "sb %[temp5], -1(%[dst]) \n\t" - "bne %[irow], %[loop_end], 1b \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp3]"=&r"(temp3), - [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [irow]"+r"(irow), - [dst]"+r"(dst), [loop_end]"=&r"(loop_end) - : [temp2]"r"(temp2), [temp6]"r"(temp6) - : "memory", "hi", "lo" - ); - } -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void WebPRescalerDspInitMIPS32(void); - -WEBP_TSAN_IGNORE_FUNCTION void WebPRescalerDspInitMIPS32(void) { - WebPRescalerImportRowExpand = ImportRowExpand; - WebPRescalerImportRowShrink = ImportRowShrink; - WebPRescalerExportRowExpand = ExportRowExpand; - WebPRescalerExportRowShrink = ExportRowShrink; -} - -#else // !WEBP_USE_MIPS32 - -WEBP_DSP_INIT_STUB(WebPRescalerDspInitMIPS32) - -#endif // WEBP_USE_MIPS32 diff --git a/drivers/webp/dsp/rescaler_mips_dsp_r2.c b/drivers/webp/dsp/rescaler_mips_dsp_r2.c deleted file mode 100644 index b457d0a30a..0000000000 --- a/drivers/webp/dsp/rescaler_mips_dsp_r2.c +++ /dev/null @@ -1,314 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// MIPS version of rescaling functions -// -// Author(s): Djordje Pesut (djordje.pesut@imgtec.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_MIPS_DSP_R2) - -#include <assert.h> -#include "../utils/rescaler.h" - -#define ROUNDER (WEBP_RESCALER_ONE >> 1) -#define MULT_FIX(x, y) (((uint64_t)(x) * (y) + ROUNDER) >> WEBP_RESCALER_RFIX) - -//------------------------------------------------------------------------------ -// Row export - -static void ExportRowShrink(WebPRescaler* const wrk) { - int i; - const int x_out_max = wrk->dst_width * wrk->num_channels; - uint8_t* dst = wrk->dst; - rescaler_t* irow = wrk->irow; - const rescaler_t* frow = wrk->frow; - const int yscale = wrk->fy_scale * (-wrk->y_accum); - int temp0, temp1, temp2, temp3, temp4, temp5, loop_end; - const int temp7 = (int)wrk->fxy_scale; - const int temp6 = (x_out_max & ~0x3) << 2; - assert(!WebPRescalerOutputDone(wrk)); - assert(wrk->y_accum <= 0); - assert(!wrk->y_expand); - assert(wrk->fxy_scale != 0); - if (yscale) { - if (x_out_max >= 4) { - int temp8, temp9, temp10, temp11; - __asm__ volatile ( - "li %[temp3], 0x10000 \n\t" - "li %[temp4], 0x8000 \n\t" - "addu %[loop_end], %[frow], %[temp6] \n\t" - "1: \n\t" - "lw %[temp0], 0(%[frow]) \n\t" - "lw %[temp1], 4(%[frow]) \n\t" - "lw %[temp2], 8(%[frow]) \n\t" - "lw %[temp5], 12(%[frow]) \n\t" - "mult $ac0, %[temp3], %[temp4] \n\t" - "maddu $ac0, %[temp0], %[yscale] \n\t" - "mult $ac1, %[temp3], %[temp4] \n\t" - "maddu $ac1, %[temp1], %[yscale] \n\t" - "mult $ac2, %[temp3], %[temp4] \n\t" - "maddu $ac2, %[temp2], %[yscale] \n\t" - "mult $ac3, %[temp3], %[temp4] \n\t" - "maddu $ac3, %[temp5], %[yscale] \n\t" - "addiu %[frow], %[frow], 16 \n\t" - "mfhi %[temp0], $ac0 \n\t" - "mfhi %[temp1], $ac1 \n\t" - "mfhi %[temp2], $ac2 \n\t" - "mfhi %[temp5], $ac3 \n\t" - "lw %[temp8], 0(%[irow]) \n\t" - "lw %[temp9], 4(%[irow]) \n\t" - "lw %[temp10], 8(%[irow]) \n\t" - "lw %[temp11], 12(%[irow]) \n\t" - "addiu %[dst], %[dst], 4 \n\t" - "addiu %[irow], %[irow], 16 \n\t" - "subu %[temp8], %[temp8], %[temp0] \n\t" - "subu %[temp9], %[temp9], %[temp1] \n\t" - "subu %[temp10], %[temp10], %[temp2] \n\t" - "subu %[temp11], %[temp11], %[temp5] \n\t" - "mult $ac0, %[temp3], %[temp4] \n\t" - "maddu $ac0, %[temp8], %[temp7] \n\t" - "mult $ac1, %[temp3], %[temp4] \n\t" - "maddu $ac1, %[temp9], %[temp7] \n\t" - "mult $ac2, %[temp3], %[temp4] \n\t" - "maddu $ac2, %[temp10], %[temp7] \n\t" - "mult $ac3, %[temp3], %[temp4] \n\t" - "maddu $ac3, %[temp11], %[temp7] \n\t" - "mfhi %[temp8], $ac0 \n\t" - "mfhi %[temp9], $ac1 \n\t" - "mfhi %[temp10], $ac2 \n\t" - "mfhi %[temp11], $ac3 \n\t" - "sw %[temp0], -16(%[irow]) \n\t" - "sw %[temp1], -12(%[irow]) \n\t" - "sw %[temp2], -8(%[irow]) \n\t" - "sw %[temp5], -4(%[irow]) \n\t" - "sb %[temp8], -4(%[dst]) \n\t" - "sb %[temp9], -3(%[dst]) \n\t" - "sb %[temp10], -2(%[dst]) \n\t" - "sb %[temp11], -1(%[dst]) \n\t" - "bne %[frow], %[loop_end], 1b \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp3]"=&r"(temp3), - [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [frow]"+r"(frow), - [irow]"+r"(irow), [dst]"+r"(dst), [loop_end]"=&r"(loop_end), - [temp8]"=&r"(temp8), [temp9]"=&r"(temp9), [temp10]"=&r"(temp10), - [temp11]"=&r"(temp11), [temp2]"=&r"(temp2) - : [temp7]"r"(temp7), [yscale]"r"(yscale), [temp6]"r"(temp6) - : "memory", "hi", "lo", "$ac1hi", "$ac1lo", - "$ac2hi", "$ac2lo", "$ac3hi", "$ac3lo" - ); - } - for (i = 0; i < (x_out_max & 0x3); ++i) { - const uint32_t frac = (uint32_t)MULT_FIX(*frow++, yscale); - const int v = (int)MULT_FIX(*irow - frac, wrk->fxy_scale); - assert(v >= 0 && v <= 255); - *dst++ = v; - *irow++ = frac; // new fractional start - } - } else { - if (x_out_max >= 4) { - __asm__ volatile ( - "li %[temp3], 0x10000 \n\t" - "li %[temp4], 0x8000 \n\t" - "addu %[loop_end], %[irow], %[temp6] \n\t" - "1: \n\t" - "lw %[temp0], 0(%[irow]) \n\t" - "lw %[temp1], 4(%[irow]) \n\t" - "lw %[temp2], 8(%[irow]) \n\t" - "lw %[temp5], 12(%[irow]) \n\t" - "addiu %[dst], %[dst], 4 \n\t" - "addiu %[irow], %[irow], 16 \n\t" - "mult $ac0, %[temp3], %[temp4] \n\t" - "maddu $ac0, %[temp0], %[temp7] \n\t" - "mult $ac1, %[temp3], %[temp4] \n\t" - "maddu $ac1, %[temp1], %[temp7] \n\t" - "mult $ac2, %[temp3], %[temp4] \n\t" - "maddu $ac2, %[temp2], %[temp7] \n\t" - "mult $ac3, %[temp3], %[temp4] \n\t" - "maddu $ac3, %[temp5], %[temp7] \n\t" - "mfhi %[temp0], $ac0 \n\t" - "mfhi %[temp1], $ac1 \n\t" - "mfhi %[temp2], $ac2 \n\t" - "mfhi %[temp5], $ac3 \n\t" - "sw $zero, -16(%[irow]) \n\t" - "sw $zero, -12(%[irow]) \n\t" - "sw $zero, -8(%[irow]) \n\t" - "sw $zero, -4(%[irow]) \n\t" - "sb %[temp0], -4(%[dst]) \n\t" - "sb %[temp1], -3(%[dst]) \n\t" - "sb %[temp2], -2(%[dst]) \n\t" - "sb %[temp5], -1(%[dst]) \n\t" - "bne %[irow], %[loop_end], 1b \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp3]"=&r"(temp3), - [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [irow]"+r"(irow), - [dst]"+r"(dst), [loop_end]"=&r"(loop_end), [temp2]"=&r"(temp2) - : [temp7]"r"(temp7), [temp6]"r"(temp6) - : "memory", "hi", "lo", "$ac1hi", "$ac1lo", - "$ac2hi", "$ac2lo", "$ac3hi", "$ac3lo" - ); - } - for (i = 0; i < (x_out_max & 0x3); ++i) { - const int v = (int)MULT_FIX(*irow, wrk->fxy_scale); - assert(v >= 0 && v <= 255); - *dst++ = v; - *irow++ = 0; - } - } -} - -static void ExportRowExpand(WebPRescaler* const wrk) { - int i; - uint8_t* dst = wrk->dst; - rescaler_t* irow = wrk->irow; - const int x_out_max = wrk->dst_width * wrk->num_channels; - const rescaler_t* frow = wrk->frow; - int temp0, temp1, temp2, temp3, temp4, temp5, loop_end; - const int temp6 = (x_out_max & ~0x3) << 2; - const int temp7 = (int)wrk->fy_scale; - assert(!WebPRescalerOutputDone(wrk)); - assert(wrk->y_accum <= 0); - assert(wrk->y_expand); - assert(wrk->y_sub != 0); - if (wrk->y_accum == 0) { - if (x_out_max >= 4) { - __asm__ volatile ( - "li %[temp4], 0x10000 \n\t" - "li %[temp5], 0x8000 \n\t" - "addu %[loop_end], %[frow], %[temp6] \n\t" - "1: \n\t" - "lw %[temp0], 0(%[frow]) \n\t" - "lw %[temp1], 4(%[frow]) \n\t" - "lw %[temp2], 8(%[frow]) \n\t" - "lw %[temp3], 12(%[frow]) \n\t" - "addiu %[dst], %[dst], 4 \n\t" - "addiu %[frow], %[frow], 16 \n\t" - "mult $ac0, %[temp4], %[temp5] \n\t" - "maddu $ac0, %[temp0], %[temp7] \n\t" - "mult $ac1, %[temp4], %[temp5] \n\t" - "maddu $ac1, %[temp1], %[temp7] \n\t" - "mult $ac2, %[temp4], %[temp5] \n\t" - "maddu $ac2, %[temp2], %[temp7] \n\t" - "mult $ac3, %[temp4], %[temp5] \n\t" - "maddu $ac3, %[temp3], %[temp7] \n\t" - "mfhi %[temp0], $ac0 \n\t" - "mfhi %[temp1], $ac1 \n\t" - "mfhi %[temp2], $ac2 \n\t" - "mfhi %[temp3], $ac3 \n\t" - "sb %[temp0], -4(%[dst]) \n\t" - "sb %[temp1], -3(%[dst]) \n\t" - "sb %[temp2], -2(%[dst]) \n\t" - "sb %[temp3], -1(%[dst]) \n\t" - "bne %[frow], %[loop_end], 1b \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp3]"=&r"(temp3), - [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [frow]"+r"(frow), - [dst]"+r"(dst), [loop_end]"=&r"(loop_end), [temp2]"=&r"(temp2) - : [temp7]"r"(temp7), [temp6]"r"(temp6) - : "memory", "hi", "lo", "$ac1hi", "$ac1lo", - "$ac2hi", "$ac2lo", "$ac3hi", "$ac3lo" - ); - } - for (i = 0; i < (x_out_max & 0x3); ++i) { - const uint32_t J = *frow++; - const int v = (int)MULT_FIX(J, wrk->fy_scale); - assert(v >= 0 && v <= 255); - *dst++ = v; - } - } else { - const uint32_t B = WEBP_RESCALER_FRAC(-wrk->y_accum, wrk->y_sub); - const uint32_t A = (uint32_t)(WEBP_RESCALER_ONE - B); - if (x_out_max >= 4) { - int temp8, temp9, temp10, temp11; - __asm__ volatile ( - "li %[temp8], 0x10000 \n\t" - "li %[temp9], 0x8000 \n\t" - "addu %[loop_end], %[frow], %[temp6] \n\t" - "1: \n\t" - "lw %[temp0], 0(%[frow]) \n\t" - "lw %[temp1], 4(%[frow]) \n\t" - "lw %[temp2], 8(%[frow]) \n\t" - "lw %[temp3], 12(%[frow]) \n\t" - "lw %[temp4], 0(%[irow]) \n\t" - "lw %[temp5], 4(%[irow]) \n\t" - "lw %[temp10], 8(%[irow]) \n\t" - "lw %[temp11], 12(%[irow]) \n\t" - "addiu %[dst], %[dst], 4 \n\t" - "mult $ac0, %[temp8], %[temp9] \n\t" - "maddu $ac0, %[A], %[temp0] \n\t" - "maddu $ac0, %[B], %[temp4] \n\t" - "mult $ac1, %[temp8], %[temp9] \n\t" - "maddu $ac1, %[A], %[temp1] \n\t" - "maddu $ac1, %[B], %[temp5] \n\t" - "mult $ac2, %[temp8], %[temp9] \n\t" - "maddu $ac2, %[A], %[temp2] \n\t" - "maddu $ac2, %[B], %[temp10] \n\t" - "mult $ac3, %[temp8], %[temp9] \n\t" - "maddu $ac3, %[A], %[temp3] \n\t" - "maddu $ac3, %[B], %[temp11] \n\t" - "addiu %[frow], %[frow], 16 \n\t" - "addiu %[irow], %[irow], 16 \n\t" - "mfhi %[temp0], $ac0 \n\t" - "mfhi %[temp1], $ac1 \n\t" - "mfhi %[temp2], $ac2 \n\t" - "mfhi %[temp3], $ac3 \n\t" - "mult $ac0, %[temp8], %[temp9] \n\t" - "maddu $ac0, %[temp0], %[temp7] \n\t" - "mult $ac1, %[temp8], %[temp9] \n\t" - "maddu $ac1, %[temp1], %[temp7] \n\t" - "mult $ac2, %[temp8], %[temp9] \n\t" - "maddu $ac2, %[temp2], %[temp7] \n\t" - "mult $ac3, %[temp8], %[temp9] \n\t" - "maddu $ac3, %[temp3], %[temp7] \n\t" - "mfhi %[temp0], $ac0 \n\t" - "mfhi %[temp1], $ac1 \n\t" - "mfhi %[temp2], $ac2 \n\t" - "mfhi %[temp3], $ac3 \n\t" - "sb %[temp0], -4(%[dst]) \n\t" - "sb %[temp1], -3(%[dst]) \n\t" - "sb %[temp2], -2(%[dst]) \n\t" - "sb %[temp3], -1(%[dst]) \n\t" - "bne %[frow], %[loop_end], 1b \n\t" - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp3]"=&r"(temp3), - [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [frow]"+r"(frow), - [irow]"+r"(irow), [dst]"+r"(dst), [loop_end]"=&r"(loop_end), - [temp8]"=&r"(temp8), [temp9]"=&r"(temp9), [temp10]"=&r"(temp10), - [temp11]"=&r"(temp11), [temp2]"=&r"(temp2) - : [temp7]"r"(temp7), [temp6]"r"(temp6), [A]"r"(A), [B]"r"(B) - : "memory", "hi", "lo", "$ac1hi", "$ac1lo", - "$ac2hi", "$ac2lo", "$ac3hi", "$ac3lo" - ); - } - for (i = 0; i < (x_out_max & 0x3); ++i) { - const uint64_t I = (uint64_t)A * *frow++ - + (uint64_t)B * *irow++; - const uint32_t J = (uint32_t)((I + ROUNDER) >> WEBP_RESCALER_RFIX); - const int v = (int)MULT_FIX(J, wrk->fy_scale); - assert(v >= 0 && v <= 255); - *dst++ = v; - } - } -} - -#undef MULT_FIX -#undef ROUNDER - -//------------------------------------------------------------------------------ -// Entry point - -extern void WebPRescalerDspInitMIPSdspR2(void); - -WEBP_TSAN_IGNORE_FUNCTION void WebPRescalerDspInitMIPSdspR2(void) { - WebPRescalerExportRowExpand = ExportRowExpand; - WebPRescalerExportRowShrink = ExportRowShrink; -} - -#else // !WEBP_USE_MIPS_DSP_R2 - -WEBP_DSP_INIT_STUB(WebPRescalerDspInitMIPSdspR2) - -#endif // WEBP_USE_MIPS_DSP_R2 diff --git a/drivers/webp/dsp/rescaler_neon.c b/drivers/webp/dsp/rescaler_neon.c deleted file mode 100644 index 16fd450ea3..0000000000 --- a/drivers/webp/dsp/rescaler_neon.c +++ /dev/null @@ -1,186 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// NEON version of rescaling functions -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_NEON) - -#include <arm_neon.h> -#include <assert.h> -#include "./neon.h" -#include "../utils/rescaler.h" - -#define ROUNDER (WEBP_RESCALER_ONE >> 1) -#define MULT_FIX_C(x, y) (((uint64_t)(x) * (y) + ROUNDER) >> WEBP_RESCALER_RFIX) - -#define LOAD_32x4(SRC, DST) const uint32x4_t DST = vld1q_u32((SRC)) -#define LOAD_32x8(SRC, DST0, DST1) \ - LOAD_32x4(SRC + 0, DST0); \ - LOAD_32x4(SRC + 4, DST1) - -#define STORE_32x8(SRC0, SRC1, DST) do { \ - vst1q_u32((DST) + 0, SRC0); \ - vst1q_u32((DST) + 4, SRC1); \ -} while (0); - -#if (WEBP_RESCALER_RFIX == 32) -#define MAKE_HALF_CST(C) vdupq_n_s32((int32_t)((C) >> 1)) -#define MULT_FIX(A, B) /* note: B is actualy scale>>1. See MAKE_HALF_CST */ \ - vreinterpretq_u32_s32(vqrdmulhq_s32(vreinterpretq_s32_u32((A)), (B))) -#else -#error "MULT_FIX/WEBP_RESCALER_RFIX need some more work" -#endif - -static uint32x4_t Interpolate(const rescaler_t* const frow, - const rescaler_t* const irow, - uint32_t A, uint32_t B) { - LOAD_32x4(frow, A0); - LOAD_32x4(irow, B0); - const uint64x2_t C0 = vmull_n_u32(vget_low_u32(A0), A); - const uint64x2_t C1 = vmull_n_u32(vget_high_u32(A0), A); - const uint64x2_t D0 = vmlal_n_u32(C0, vget_low_u32(B0), B); - const uint64x2_t D1 = vmlal_n_u32(C1, vget_high_u32(B0), B); - const uint32x4_t E = vcombine_u32( - vrshrn_n_u64(D0, WEBP_RESCALER_RFIX), - vrshrn_n_u64(D1, WEBP_RESCALER_RFIX)); - return E; -} - -static void RescalerExportRowExpand(WebPRescaler* const wrk) { - int x_out; - uint8_t* const dst = wrk->dst; - rescaler_t* const irow = wrk->irow; - const int x_out_max = wrk->dst_width * wrk->num_channels; - const int max_span = x_out_max & ~7; - const rescaler_t* const frow = wrk->frow; - const uint32_t fy_scale = wrk->fy_scale; - const int32x4_t fy_scale_half = MAKE_HALF_CST(fy_scale); - assert(!WebPRescalerOutputDone(wrk)); - assert(wrk->y_accum <= 0); - assert(wrk->y_expand); - assert(wrk->y_sub != 0); - if (wrk->y_accum == 0) { - for (x_out = 0; x_out < max_span; x_out += 8) { - LOAD_32x4(frow + x_out + 0, A0); - LOAD_32x4(frow + x_out + 4, A1); - const uint32x4_t B0 = MULT_FIX(A0, fy_scale_half); - const uint32x4_t B1 = MULT_FIX(A1, fy_scale_half); - const uint16x4_t C0 = vmovn_u32(B0); - const uint16x4_t C1 = vmovn_u32(B1); - const uint8x8_t D = vmovn_u16(vcombine_u16(C0, C1)); - vst1_u8(dst + x_out, D); - } - for (; x_out < x_out_max; ++x_out) { - const uint32_t J = frow[x_out]; - const int v = (int)MULT_FIX_C(J, fy_scale); - assert(v >= 0 && v <= 255); - dst[x_out] = v; - } - } else { - const uint32_t B = WEBP_RESCALER_FRAC(-wrk->y_accum, wrk->y_sub); - const uint32_t A = (uint32_t)(WEBP_RESCALER_ONE - B); - for (x_out = 0; x_out < max_span; x_out += 8) { - const uint32x4_t C0 = - Interpolate(frow + x_out + 0, irow + x_out + 0, A, B); - const uint32x4_t C1 = - Interpolate(frow + x_out + 4, irow + x_out + 4, A, B); - const uint32x4_t D0 = MULT_FIX(C0, fy_scale_half); - const uint32x4_t D1 = MULT_FIX(C1, fy_scale_half); - const uint16x4_t E0 = vmovn_u32(D0); - const uint16x4_t E1 = vmovn_u32(D1); - const uint8x8_t F = vmovn_u16(vcombine_u16(E0, E1)); - vst1_u8(dst + x_out, F); - } - for (; x_out < x_out_max; ++x_out) { - const uint64_t I = (uint64_t)A * frow[x_out] - + (uint64_t)B * irow[x_out]; - const uint32_t J = (uint32_t)((I + ROUNDER) >> WEBP_RESCALER_RFIX); - const int v = (int)MULT_FIX_C(J, fy_scale); - assert(v >= 0 && v <= 255); - dst[x_out] = v; - } - } -} - -static void RescalerExportRowShrink(WebPRescaler* const wrk) { - int x_out; - uint8_t* const dst = wrk->dst; - rescaler_t* const irow = wrk->irow; - const int x_out_max = wrk->dst_width * wrk->num_channels; - const int max_span = x_out_max & ~7; - const rescaler_t* const frow = wrk->frow; - const uint32_t yscale = wrk->fy_scale * (-wrk->y_accum); - const uint32_t fxy_scale = wrk->fxy_scale; - const uint32x4_t zero = vdupq_n_u32(0); - const int32x4_t yscale_half = MAKE_HALF_CST(yscale); - const int32x4_t fxy_scale_half = MAKE_HALF_CST(fxy_scale); - assert(!WebPRescalerOutputDone(wrk)); - assert(wrk->y_accum <= 0); - assert(!wrk->y_expand); - if (yscale) { - for (x_out = 0; x_out < max_span; x_out += 8) { - LOAD_32x8(frow + x_out, in0, in1); - LOAD_32x8(irow + x_out, in2, in3); - const uint32x4_t A0 = MULT_FIX(in0, yscale_half); - const uint32x4_t A1 = MULT_FIX(in1, yscale_half); - const uint32x4_t B0 = vqsubq_u32(in2, A0); - const uint32x4_t B1 = vqsubq_u32(in3, A1); - const uint32x4_t C0 = MULT_FIX(B0, fxy_scale_half); - const uint32x4_t C1 = MULT_FIX(B1, fxy_scale_half); - const uint16x4_t D0 = vmovn_u32(C0); - const uint16x4_t D1 = vmovn_u32(C1); - const uint8x8_t E = vmovn_u16(vcombine_u16(D0, D1)); - vst1_u8(dst + x_out, E); - STORE_32x8(A0, A1, irow + x_out); - } - for (; x_out < x_out_max; ++x_out) { - const uint32_t frac = (uint32_t)MULT_FIX_C(frow[x_out], yscale); - const int v = (int)MULT_FIX_C(irow[x_out] - frac, wrk->fxy_scale); - assert(v >= 0 && v <= 255); - dst[x_out] = v; - irow[x_out] = frac; // new fractional start - } - } else { - for (x_out = 0; x_out < max_span; x_out += 8) { - LOAD_32x8(irow + x_out, in0, in1); - const uint32x4_t A0 = MULT_FIX(in0, fxy_scale_half); - const uint32x4_t A1 = MULT_FIX(in1, fxy_scale_half); - const uint16x4_t B0 = vmovn_u32(A0); - const uint16x4_t B1 = vmovn_u32(A1); - const uint8x8_t C = vmovn_u16(vcombine_u16(B0, B1)); - vst1_u8(dst + x_out, C); - STORE_32x8(zero, zero, irow + x_out); - } - for (; x_out < x_out_max; ++x_out) { - const int v = (int)MULT_FIX_C(irow[x_out], fxy_scale); - assert(v >= 0 && v <= 255); - dst[x_out] = v; - irow[x_out] = 0; - } - } -} - -//------------------------------------------------------------------------------ - -extern void WebPRescalerDspInitNEON(void); - -WEBP_TSAN_IGNORE_FUNCTION void WebPRescalerDspInitNEON(void) { - WebPRescalerExportRowExpand = RescalerExportRowExpand; - WebPRescalerExportRowShrink = RescalerExportRowShrink; -} - -#else // !WEBP_USE_NEON - -WEBP_DSP_INIT_STUB(WebPRescalerDspInitNEON) - -#endif // WEBP_USE_NEON diff --git a/drivers/webp/dsp/rescaler_sse2.c b/drivers/webp/dsp/rescaler_sse2.c deleted file mode 100644 index 5b9702817c..0000000000 --- a/drivers/webp/dsp/rescaler_sse2.c +++ /dev/null @@ -1,375 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// SSE2 Rescaling functions -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_SSE2) -#include <emmintrin.h> - -#include <assert.h> -#include "../utils/rescaler.h" -#include "../utils/utils.h" - -//------------------------------------------------------------------------------ -// Implementations of critical functions ImportRow / ExportRow - -#define ROUNDER (WEBP_RESCALER_ONE >> 1) -#define MULT_FIX(x, y) (((uint64_t)(x) * (y) + ROUNDER) >> WEBP_RESCALER_RFIX) - -// input: 8 bytes ABCDEFGH -> output: A0E0B0F0C0G0D0H0 -static void LoadTwoPixels(const uint8_t* const src, __m128i* out) { - const __m128i zero = _mm_setzero_si128(); - const __m128i A = _mm_loadl_epi64((const __m128i*)(src)); // ABCDEFGH - const __m128i B = _mm_unpacklo_epi8(A, zero); // A0B0C0D0E0F0G0H0 - const __m128i C = _mm_srli_si128(B, 8); // E0F0G0H0 - *out = _mm_unpacklo_epi16(B, C); -} - -// input: 8 bytes ABCDEFGH -> output: A0B0C0D0E0F0G0H0 -static void LoadHeightPixels(const uint8_t* const src, __m128i* out) { - const __m128i zero = _mm_setzero_si128(); - const __m128i A = _mm_loadl_epi64((const __m128i*)(src)); // ABCDEFGH - *out = _mm_unpacklo_epi8(A, zero); -} - -static void RescalerImportRowExpandSSE2(WebPRescaler* const wrk, - const uint8_t* src) { - rescaler_t* frow = wrk->frow; - const rescaler_t* const frow_end = frow + wrk->dst_width * wrk->num_channels; - const int x_add = wrk->x_add; - int accum = x_add; - __m128i cur_pixels; - - assert(!WebPRescalerInputDone(wrk)); - assert(wrk->x_expand); - if (wrk->num_channels == 4) { - if (wrk->src_width < 2) { - WebPRescalerImportRowExpandC(wrk, src); - return; - } - LoadTwoPixels(src, &cur_pixels); - src += 4; - while (1) { - const __m128i mult = _mm_set1_epi32(((x_add - accum) << 16) | accum); - const __m128i out = _mm_madd_epi16(cur_pixels, mult); - _mm_storeu_si128((__m128i*)frow, out); - frow += 4; - if (frow >= frow_end) break; - accum -= wrk->x_sub; - if (accum < 0) { - LoadTwoPixels(src, &cur_pixels); - src += 4; - accum += x_add; - } - } - } else { - int left; - const uint8_t* const src_limit = src + wrk->src_width - 8; - if (wrk->src_width < 8) { - WebPRescalerImportRowExpandC(wrk, src); - return; - } - LoadHeightPixels(src, &cur_pixels); - src += 7; - left = 7; - while (1) { - const __m128i mult = _mm_cvtsi32_si128(((x_add - accum) << 16) | accum); - const __m128i out = _mm_madd_epi16(cur_pixels, mult); - assert(sizeof(*frow) == sizeof(uint32_t)); - WebPUint32ToMem((uint8_t*)frow, _mm_cvtsi128_si32(out)); - frow += 1; - if (frow >= frow_end) break; - accum -= wrk->x_sub; - if (accum < 0) { - if (--left) { - cur_pixels = _mm_srli_si128(cur_pixels, 2); - } else if (src <= src_limit) { - LoadHeightPixels(src, &cur_pixels); - src += 7; - left = 7; - } else { // tail - cur_pixels = _mm_srli_si128(cur_pixels, 2); - cur_pixels = _mm_insert_epi16(cur_pixels, src[1], 1); - src += 1; - left = 1; - } - accum += x_add; - } - } - } - assert(accum == 0); -} - -static void RescalerImportRowShrinkSSE2(WebPRescaler* const wrk, - const uint8_t* src) { - const int x_sub = wrk->x_sub; - int accum = 0; - const __m128i zero = _mm_setzero_si128(); - const __m128i mult0 = _mm_set1_epi16(x_sub); - const __m128i mult1 = _mm_set1_epi32(wrk->fx_scale); - const __m128i rounder = _mm_set_epi32(0, ROUNDER, 0, ROUNDER); - __m128i sum = zero; - rescaler_t* frow = wrk->frow; - const rescaler_t* const frow_end = wrk->frow + 4 * wrk->dst_width; - - if (wrk->num_channels != 4 || wrk->x_add > (x_sub << 7)) { - WebPRescalerImportRowShrinkC(wrk, src); - return; - } - assert(!WebPRescalerInputDone(wrk)); - assert(!wrk->x_expand); - - for (; frow < frow_end; frow += 4) { - __m128i base = zero; - accum += wrk->x_add; - while (accum > 0) { - const __m128i A = _mm_cvtsi32_si128(WebPMemToUint32(src)); - src += 4; - base = _mm_unpacklo_epi8(A, zero); - // To avoid overflow, we need: base * x_add / x_sub < 32768 - // => x_add < x_sub << 7. That's a 1/128 reduction ratio limit. - sum = _mm_add_epi16(sum, base); - accum -= x_sub; - } - { // Emit next horizontal pixel. - const __m128i mult = _mm_set1_epi16(-accum); - const __m128i frac0 = _mm_mullo_epi16(base, mult); // 16b x 16b -> 32b - const __m128i frac1 = _mm_mulhi_epu16(base, mult); - const __m128i frac = _mm_unpacklo_epi16(frac0, frac1); // frac is 32b - const __m128i A0 = _mm_mullo_epi16(sum, mult0); - const __m128i A1 = _mm_mulhi_epu16(sum, mult0); - const __m128i B0 = _mm_unpacklo_epi16(A0, A1); // sum * x_sub - const __m128i frow_out = _mm_sub_epi32(B0, frac); // sum * x_sub - frac - const __m128i D0 = _mm_srli_epi64(frac, 32); - const __m128i D1 = _mm_mul_epu32(frac, mult1); // 32b x 16b -> 64b - const __m128i D2 = _mm_mul_epu32(D0, mult1); - const __m128i E1 = _mm_add_epi64(D1, rounder); - const __m128i E2 = _mm_add_epi64(D2, rounder); - const __m128i F1 = _mm_shuffle_epi32(E1, 1 | (3 << 2)); - const __m128i F2 = _mm_shuffle_epi32(E2, 1 | (3 << 2)); - const __m128i G = _mm_unpacklo_epi32(F1, F2); - sum = _mm_packs_epi32(G, zero); - _mm_storeu_si128((__m128i*)frow, frow_out); - } - } - assert(accum == 0); -} - -//------------------------------------------------------------------------------ -// Row export - -// load *src as epi64, multiply by mult and store result in [out0 ... out3] -static WEBP_INLINE void LoadDispatchAndMult(const rescaler_t* const src, - const __m128i* const mult, - __m128i* const out0, - __m128i* const out1, - __m128i* const out2, - __m128i* const out3) { - const __m128i A0 = _mm_loadu_si128((const __m128i*)(src + 0)); - const __m128i A1 = _mm_loadu_si128((const __m128i*)(src + 4)); - const __m128i A2 = _mm_srli_epi64(A0, 32); - const __m128i A3 = _mm_srli_epi64(A1, 32); - if (mult != NULL) { - *out0 = _mm_mul_epu32(A0, *mult); - *out1 = _mm_mul_epu32(A1, *mult); - *out2 = _mm_mul_epu32(A2, *mult); - *out3 = _mm_mul_epu32(A3, *mult); - } else { - *out0 = A0; - *out1 = A1; - *out2 = A2; - *out3 = A3; - } -} - -static WEBP_INLINE void ProcessRow(const __m128i* const A0, - const __m128i* const A1, - const __m128i* const A2, - const __m128i* const A3, - const __m128i* const mult, - uint8_t* const dst) { - const __m128i rounder = _mm_set_epi32(0, ROUNDER, 0, ROUNDER); - const __m128i mask = _mm_set_epi32(0xffffffffu, 0, 0xffffffffu, 0); - const __m128i B0 = _mm_mul_epu32(*A0, *mult); - const __m128i B1 = _mm_mul_epu32(*A1, *mult); - const __m128i B2 = _mm_mul_epu32(*A2, *mult); - const __m128i B3 = _mm_mul_epu32(*A3, *mult); - const __m128i C0 = _mm_add_epi64(B0, rounder); - const __m128i C1 = _mm_add_epi64(B1, rounder); - const __m128i C2 = _mm_add_epi64(B2, rounder); - const __m128i C3 = _mm_add_epi64(B3, rounder); - const __m128i D0 = _mm_srli_epi64(C0, WEBP_RESCALER_RFIX); - const __m128i D1 = _mm_srli_epi64(C1, WEBP_RESCALER_RFIX); -#if (WEBP_RESCALER_FIX < 32) - const __m128i D2 = - _mm_and_si128(_mm_slli_epi64(C2, 32 - WEBP_RESCALER_RFIX), mask); - const __m128i D3 = - _mm_and_si128(_mm_slli_epi64(C3, 32 - WEBP_RESCALER_RFIX), mask); -#else - const __m128i D2 = _mm_and_si128(C2, mask); - const __m128i D3 = _mm_and_si128(C3, mask); -#endif - const __m128i E0 = _mm_or_si128(D0, D2); - const __m128i E1 = _mm_or_si128(D1, D3); - const __m128i F = _mm_packs_epi32(E0, E1); - const __m128i G = _mm_packus_epi16(F, F); - _mm_storel_epi64((__m128i*)dst, G); -} - -static void RescalerExportRowExpandSSE2(WebPRescaler* const wrk) { - int x_out; - uint8_t* const dst = wrk->dst; - rescaler_t* const irow = wrk->irow; - const int x_out_max = wrk->dst_width * wrk->num_channels; - const rescaler_t* const frow = wrk->frow; - const __m128i mult = _mm_set_epi32(0, wrk->fy_scale, 0, wrk->fy_scale); - - assert(!WebPRescalerOutputDone(wrk)); - assert(wrk->y_accum <= 0 && wrk->y_sub + wrk->y_accum >= 0); - assert(wrk->y_expand); - if (wrk->y_accum == 0) { - for (x_out = 0; x_out + 8 <= x_out_max; x_out += 8) { - __m128i A0, A1, A2, A3; - LoadDispatchAndMult(frow + x_out, NULL, &A0, &A1, &A2, &A3); - ProcessRow(&A0, &A1, &A2, &A3, &mult, dst + x_out); - } - for (; x_out < x_out_max; ++x_out) { - const uint32_t J = frow[x_out]; - const int v = (int)MULT_FIX(J, wrk->fy_scale); - assert(v >= 0 && v <= 255); - dst[x_out] = v; - } - } else { - const uint32_t B = WEBP_RESCALER_FRAC(-wrk->y_accum, wrk->y_sub); - const uint32_t A = (uint32_t)(WEBP_RESCALER_ONE - B); - const __m128i mA = _mm_set_epi32(0, A, 0, A); - const __m128i mB = _mm_set_epi32(0, B, 0, B); - const __m128i rounder = _mm_set_epi32(0, ROUNDER, 0, ROUNDER); - for (x_out = 0; x_out + 8 <= x_out_max; x_out += 8) { - __m128i A0, A1, A2, A3, B0, B1, B2, B3; - LoadDispatchAndMult(frow + x_out, &mA, &A0, &A1, &A2, &A3); - LoadDispatchAndMult(irow + x_out, &mB, &B0, &B1, &B2, &B3); - { - const __m128i C0 = _mm_add_epi64(A0, B0); - const __m128i C1 = _mm_add_epi64(A1, B1); - const __m128i C2 = _mm_add_epi64(A2, B2); - const __m128i C3 = _mm_add_epi64(A3, B3); - const __m128i D0 = _mm_add_epi64(C0, rounder); - const __m128i D1 = _mm_add_epi64(C1, rounder); - const __m128i D2 = _mm_add_epi64(C2, rounder); - const __m128i D3 = _mm_add_epi64(C3, rounder); - const __m128i E0 = _mm_srli_epi64(D0, WEBP_RESCALER_RFIX); - const __m128i E1 = _mm_srli_epi64(D1, WEBP_RESCALER_RFIX); - const __m128i E2 = _mm_srli_epi64(D2, WEBP_RESCALER_RFIX); - const __m128i E3 = _mm_srli_epi64(D3, WEBP_RESCALER_RFIX); - ProcessRow(&E0, &E1, &E2, &E3, &mult, dst + x_out); - } - } - for (; x_out < x_out_max; ++x_out) { - const uint64_t I = (uint64_t)A * frow[x_out] - + (uint64_t)B * irow[x_out]; - const uint32_t J = (uint32_t)((I + ROUNDER) >> WEBP_RESCALER_RFIX); - const int v = (int)MULT_FIX(J, wrk->fy_scale); - assert(v >= 0 && v <= 255); - dst[x_out] = v; - } - } -} - -static void RescalerExportRowShrinkSSE2(WebPRescaler* const wrk) { - int x_out; - uint8_t* const dst = wrk->dst; - rescaler_t* const irow = wrk->irow; - const int x_out_max = wrk->dst_width * wrk->num_channels; - const rescaler_t* const frow = wrk->frow; - const uint32_t yscale = wrk->fy_scale * (-wrk->y_accum); - assert(!WebPRescalerOutputDone(wrk)); - assert(wrk->y_accum <= 0); - assert(!wrk->y_expand); - if (yscale) { - const int scale_xy = wrk->fxy_scale; - const __m128i mult_xy = _mm_set_epi32(0, scale_xy, 0, scale_xy); - const __m128i mult_y = _mm_set_epi32(0, yscale, 0, yscale); - const __m128i rounder = _mm_set_epi32(0, ROUNDER, 0, ROUNDER); - for (x_out = 0; x_out + 8 <= x_out_max; x_out += 8) { - __m128i A0, A1, A2, A3, B0, B1, B2, B3; - LoadDispatchAndMult(irow + x_out, NULL, &A0, &A1, &A2, &A3); - LoadDispatchAndMult(frow + x_out, &mult_y, &B0, &B1, &B2, &B3); - { - const __m128i C0 = _mm_add_epi64(B0, rounder); - const __m128i C1 = _mm_add_epi64(B1, rounder); - const __m128i C2 = _mm_add_epi64(B2, rounder); - const __m128i C3 = _mm_add_epi64(B3, rounder); - const __m128i D0 = _mm_srli_epi64(C0, WEBP_RESCALER_RFIX); // = frac - const __m128i D1 = _mm_srli_epi64(C1, WEBP_RESCALER_RFIX); - const __m128i D2 = _mm_srli_epi64(C2, WEBP_RESCALER_RFIX); - const __m128i D3 = _mm_srli_epi64(C3, WEBP_RESCALER_RFIX); - const __m128i E0 = _mm_sub_epi64(A0, D0); // irow[x] - frac - const __m128i E1 = _mm_sub_epi64(A1, D1); - const __m128i E2 = _mm_sub_epi64(A2, D2); - const __m128i E3 = _mm_sub_epi64(A3, D3); - const __m128i F2 = _mm_slli_epi64(D2, 32); - const __m128i F3 = _mm_slli_epi64(D3, 32); - const __m128i G0 = _mm_or_si128(D0, F2); - const __m128i G1 = _mm_or_si128(D1, F3); - _mm_storeu_si128((__m128i*)(irow + x_out + 0), G0); - _mm_storeu_si128((__m128i*)(irow + x_out + 4), G1); - ProcessRow(&E0, &E1, &E2, &E3, &mult_xy, dst + x_out); - } - } - for (; x_out < x_out_max; ++x_out) { - const uint32_t frac = (int)MULT_FIX(frow[x_out], yscale); - const int v = (int)MULT_FIX(irow[x_out] - frac, wrk->fxy_scale); - assert(v >= 0 && v <= 255); - dst[x_out] = v; - irow[x_out] = frac; // new fractional start - } - } else { - const uint32_t scale = wrk->fxy_scale; - const __m128i mult = _mm_set_epi32(0, scale, 0, scale); - const __m128i zero = _mm_setzero_si128(); - for (x_out = 0; x_out + 8 <= x_out_max; x_out += 8) { - __m128i A0, A1, A2, A3; - LoadDispatchAndMult(irow + x_out, NULL, &A0, &A1, &A2, &A3); - _mm_storeu_si128((__m128i*)(irow + x_out + 0), zero); - _mm_storeu_si128((__m128i*)(irow + x_out + 4), zero); - ProcessRow(&A0, &A1, &A2, &A3, &mult, dst + x_out); - } - for (; x_out < x_out_max; ++x_out) { - const int v = (int)MULT_FIX(irow[x_out], scale); - assert(v >= 0 && v <= 255); - dst[x_out] = v; - irow[x_out] = 0; - } - } -} - -#undef MULT_FIX -#undef ROUNDER - -//------------------------------------------------------------------------------ - -extern void WebPRescalerDspInitSSE2(void); - -WEBP_TSAN_IGNORE_FUNCTION void WebPRescalerDspInitSSE2(void) { - WebPRescalerImportRowExpand = RescalerImportRowExpandSSE2; - WebPRescalerImportRowShrink = RescalerImportRowShrinkSSE2; - WebPRescalerExportRowExpand = RescalerExportRowExpandSSE2; - WebPRescalerExportRowShrink = RescalerExportRowShrinkSSE2; -} - -#else // !WEBP_USE_SSE2 - -WEBP_DSP_INIT_STUB(WebPRescalerDspInitSSE2) - -#endif // WEBP_USE_SSE2 diff --git a/drivers/webp/dsp/upsampling.c b/drivers/webp/dsp/upsampling.c deleted file mode 100644 index 651274fcee..0000000000 --- a/drivers/webp/dsp/upsampling.c +++ /dev/null @@ -1,260 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// YUV to RGB upsampling functions. -// -// Author: somnath@google.com (Somnath Banerjee) - -#include "./dsp.h" -#include "./yuv.h" - -#include <assert.h> - -//------------------------------------------------------------------------------ -// Fancy upsampler - -#ifdef FANCY_UPSAMPLING - -// Fancy upsampling functions to convert YUV to RGB -WebPUpsampleLinePairFunc WebPUpsamplers[MODE_LAST]; - -// Given samples laid out in a square as: -// [a b] -// [c d] -// we interpolate u/v as: -// ([9*a + 3*b + 3*c + d 3*a + 9*b + 3*c + d] + [8 8]) / 16 -// ([3*a + b + 9*c + 3*d a + 3*b + 3*c + 9*d] [8 8]) / 16 - -// We process u and v together stashed into 32bit (16bit each). -#define LOAD_UV(u, v) ((u) | ((v) << 16)) - -#define UPSAMPLE_FUNC(FUNC_NAME, FUNC, XSTEP) \ -static void FUNC_NAME(const uint8_t* top_y, const uint8_t* bottom_y, \ - const uint8_t* top_u, const uint8_t* top_v, \ - const uint8_t* cur_u, const uint8_t* cur_v, \ - uint8_t* top_dst, uint8_t* bottom_dst, int len) { \ - int x; \ - const int last_pixel_pair = (len - 1) >> 1; \ - uint32_t tl_uv = LOAD_UV(top_u[0], top_v[0]); /* top-left sample */ \ - uint32_t l_uv = LOAD_UV(cur_u[0], cur_v[0]); /* left-sample */ \ - assert(top_y != NULL); \ - { \ - const uint32_t uv0 = (3 * tl_uv + l_uv + 0x00020002u) >> 2; \ - FUNC(top_y[0], uv0 & 0xff, (uv0 >> 16), top_dst); \ - } \ - if (bottom_y != NULL) { \ - const uint32_t uv0 = (3 * l_uv + tl_uv + 0x00020002u) >> 2; \ - FUNC(bottom_y[0], uv0 & 0xff, (uv0 >> 16), bottom_dst); \ - } \ - for (x = 1; x <= last_pixel_pair; ++x) { \ - const uint32_t t_uv = LOAD_UV(top_u[x], top_v[x]); /* top sample */ \ - const uint32_t uv = LOAD_UV(cur_u[x], cur_v[x]); /* sample */ \ - /* precompute invariant values associated with first and second diagonals*/\ - const uint32_t avg = tl_uv + t_uv + l_uv + uv + 0x00080008u; \ - const uint32_t diag_12 = (avg + 2 * (t_uv + l_uv)) >> 3; \ - const uint32_t diag_03 = (avg + 2 * (tl_uv + uv)) >> 3; \ - { \ - const uint32_t uv0 = (diag_12 + tl_uv) >> 1; \ - const uint32_t uv1 = (diag_03 + t_uv) >> 1; \ - FUNC(top_y[2 * x - 1], uv0 & 0xff, (uv0 >> 16), \ - top_dst + (2 * x - 1) * XSTEP); \ - FUNC(top_y[2 * x - 0], uv1 & 0xff, (uv1 >> 16), \ - top_dst + (2 * x - 0) * XSTEP); \ - } \ - if (bottom_y != NULL) { \ - const uint32_t uv0 = (diag_03 + l_uv) >> 1; \ - const uint32_t uv1 = (diag_12 + uv) >> 1; \ - FUNC(bottom_y[2 * x - 1], uv0 & 0xff, (uv0 >> 16), \ - bottom_dst + (2 * x - 1) * XSTEP); \ - FUNC(bottom_y[2 * x + 0], uv1 & 0xff, (uv1 >> 16), \ - bottom_dst + (2 * x + 0) * XSTEP); \ - } \ - tl_uv = t_uv; \ - l_uv = uv; \ - } \ - if (!(len & 1)) { \ - { \ - const uint32_t uv0 = (3 * tl_uv + l_uv + 0x00020002u) >> 2; \ - FUNC(top_y[len - 1], uv0 & 0xff, (uv0 >> 16), \ - top_dst + (len - 1) * XSTEP); \ - } \ - if (bottom_y != NULL) { \ - const uint32_t uv0 = (3 * l_uv + tl_uv + 0x00020002u) >> 2; \ - FUNC(bottom_y[len - 1], uv0 & 0xff, (uv0 >> 16), \ - bottom_dst + (len - 1) * XSTEP); \ - } \ - } \ -} - -// All variants implemented. -UPSAMPLE_FUNC(UpsampleRgbLinePair, VP8YuvToRgb, 3) -UPSAMPLE_FUNC(UpsampleBgrLinePair, VP8YuvToBgr, 3) -UPSAMPLE_FUNC(UpsampleRgbaLinePair, VP8YuvToRgba, 4) -UPSAMPLE_FUNC(UpsampleBgraLinePair, VP8YuvToBgra, 4) -UPSAMPLE_FUNC(UpsampleArgbLinePair, VP8YuvToArgb, 4) -UPSAMPLE_FUNC(UpsampleRgba4444LinePair, VP8YuvToRgba4444, 2) -UPSAMPLE_FUNC(UpsampleRgb565LinePair, VP8YuvToRgb565, 2) - -#undef LOAD_UV -#undef UPSAMPLE_FUNC - -#endif // FANCY_UPSAMPLING - -//------------------------------------------------------------------------------ - -#if !defined(FANCY_UPSAMPLING) -#define DUAL_SAMPLE_FUNC(FUNC_NAME, FUNC) \ -static void FUNC_NAME(const uint8_t* top_y, const uint8_t* bot_y, \ - const uint8_t* top_u, const uint8_t* top_v, \ - const uint8_t* bot_u, const uint8_t* bot_v, \ - uint8_t* top_dst, uint8_t* bot_dst, int len) { \ - const int half_len = len >> 1; \ - int x; \ - assert(top_dst != NULL); \ - { \ - for (x = 0; x < half_len; ++x) { \ - FUNC(top_y[2 * x + 0], top_u[x], top_v[x], top_dst + 8 * x + 0); \ - FUNC(top_y[2 * x + 1], top_u[x], top_v[x], top_dst + 8 * x + 4); \ - } \ - if (len & 1) FUNC(top_y[2 * x + 0], top_u[x], top_v[x], top_dst + 8 * x); \ - } \ - if (bot_dst != NULL) { \ - for (x = 0; x < half_len; ++x) { \ - FUNC(bot_y[2 * x + 0], bot_u[x], bot_v[x], bot_dst + 8 * x + 0); \ - FUNC(bot_y[2 * x + 1], bot_u[x], bot_v[x], bot_dst + 8 * x + 4); \ - } \ - if (len & 1) FUNC(bot_y[2 * x + 0], bot_u[x], bot_v[x], bot_dst + 8 * x); \ - } \ -} - -DUAL_SAMPLE_FUNC(DualLineSamplerBGRA, VP8YuvToBgra) -DUAL_SAMPLE_FUNC(DualLineSamplerARGB, VP8YuvToArgb) -#undef DUAL_SAMPLE_FUNC - -#endif // !FANCY_UPSAMPLING - -WebPUpsampleLinePairFunc WebPGetLinePairConverter(int alpha_is_last) { - WebPInitUpsamplers(); - VP8YUVInit(); -#ifdef FANCY_UPSAMPLING - return WebPUpsamplers[alpha_is_last ? MODE_BGRA : MODE_ARGB]; -#else - return (alpha_is_last ? DualLineSamplerBGRA : DualLineSamplerARGB); -#endif -} - -//------------------------------------------------------------------------------ -// YUV444 converter - -#define YUV444_FUNC(FUNC_NAME, FUNC, XSTEP) \ -extern void FUNC_NAME(const uint8_t* y, const uint8_t* u, const uint8_t* v, \ - uint8_t* dst, int len); \ -void FUNC_NAME(const uint8_t* y, const uint8_t* u, const uint8_t* v, \ - uint8_t* dst, int len) { \ - int i; \ - for (i = 0; i < len; ++i) FUNC(y[i], u[i], v[i], &dst[i * XSTEP]); \ -} - -YUV444_FUNC(WebPYuv444ToRgbC, VP8YuvToRgb, 3) -YUV444_FUNC(WebPYuv444ToBgrC, VP8YuvToBgr, 3) -YUV444_FUNC(WebPYuv444ToRgbaC, VP8YuvToRgba, 4) -YUV444_FUNC(WebPYuv444ToBgraC, VP8YuvToBgra, 4) -YUV444_FUNC(WebPYuv444ToArgbC, VP8YuvToArgb, 4) -YUV444_FUNC(WebPYuv444ToRgba4444C, VP8YuvToRgba4444, 2) -YUV444_FUNC(WebPYuv444ToRgb565C, VP8YuvToRgb565, 2) - -#undef YUV444_FUNC - -WebPYUV444Converter WebPYUV444Converters[MODE_LAST]; - -extern void WebPInitYUV444ConvertersMIPSdspR2(void); -extern void WebPInitYUV444ConvertersSSE2(void); - -static volatile VP8CPUInfo upsampling_last_cpuinfo_used1 = - (VP8CPUInfo)&upsampling_last_cpuinfo_used1; - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitYUV444Converters(void) { - if (upsampling_last_cpuinfo_used1 == VP8GetCPUInfo) return; - - WebPYUV444Converters[MODE_RGB] = WebPYuv444ToRgbC; - WebPYUV444Converters[MODE_RGBA] = WebPYuv444ToRgbaC; - WebPYUV444Converters[MODE_BGR] = WebPYuv444ToBgrC; - WebPYUV444Converters[MODE_BGRA] = WebPYuv444ToBgraC; - WebPYUV444Converters[MODE_ARGB] = WebPYuv444ToArgbC; - WebPYUV444Converters[MODE_RGBA_4444] = WebPYuv444ToRgba4444C; - WebPYUV444Converters[MODE_RGB_565] = WebPYuv444ToRgb565C; - WebPYUV444Converters[MODE_rgbA] = WebPYuv444ToRgbaC; - WebPYUV444Converters[MODE_bgrA] = WebPYuv444ToBgraC; - WebPYUV444Converters[MODE_Argb] = WebPYuv444ToArgbC; - WebPYUV444Converters[MODE_rgbA_4444] = WebPYuv444ToRgba4444C; - - if (VP8GetCPUInfo != NULL) { -#if defined(WEBP_USE_SSE2) - if (VP8GetCPUInfo(kSSE2)) { - WebPInitYUV444ConvertersSSE2(); - } -#endif -#if defined(WEBP_USE_MIPS_DSP_R2) - if (VP8GetCPUInfo(kMIPSdspR2)) { - WebPInitYUV444ConvertersMIPSdspR2(); - } -#endif - } - upsampling_last_cpuinfo_used1 = VP8GetCPUInfo; -} - -//------------------------------------------------------------------------------ -// Main calls - -extern void WebPInitUpsamplersSSE2(void); -extern void WebPInitUpsamplersNEON(void); -extern void WebPInitUpsamplersMIPSdspR2(void); - -static volatile VP8CPUInfo upsampling_last_cpuinfo_used2 = - (VP8CPUInfo)&upsampling_last_cpuinfo_used2; - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitUpsamplers(void) { - if (upsampling_last_cpuinfo_used2 == VP8GetCPUInfo) return; - -#ifdef FANCY_UPSAMPLING - WebPUpsamplers[MODE_RGB] = UpsampleRgbLinePair; - WebPUpsamplers[MODE_RGBA] = UpsampleRgbaLinePair; - WebPUpsamplers[MODE_BGR] = UpsampleBgrLinePair; - WebPUpsamplers[MODE_BGRA] = UpsampleBgraLinePair; - WebPUpsamplers[MODE_ARGB] = UpsampleArgbLinePair; - WebPUpsamplers[MODE_RGBA_4444] = UpsampleRgba4444LinePair; - WebPUpsamplers[MODE_RGB_565] = UpsampleRgb565LinePair; - WebPUpsamplers[MODE_rgbA] = UpsampleRgbaLinePair; - WebPUpsamplers[MODE_bgrA] = UpsampleBgraLinePair; - WebPUpsamplers[MODE_Argb] = UpsampleArgbLinePair; - WebPUpsamplers[MODE_rgbA_4444] = UpsampleRgba4444LinePair; - - // If defined, use CPUInfo() to overwrite some pointers with faster versions. - if (VP8GetCPUInfo != NULL) { -#if defined(WEBP_USE_SSE2) - if (VP8GetCPUInfo(kSSE2)) { - WebPInitUpsamplersSSE2(); - } -#endif -#if defined(WEBP_USE_NEON) - if (VP8GetCPUInfo(kNEON)) { - WebPInitUpsamplersNEON(); - } -#endif -#if defined(WEBP_USE_MIPS_DSP_R2) - if (VP8GetCPUInfo(kMIPSdspR2)) { - WebPInitUpsamplersMIPSdspR2(); - } -#endif - } -#endif // FANCY_UPSAMPLING - upsampling_last_cpuinfo_used2 = VP8GetCPUInfo; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/dsp/upsampling_mips_dsp_r2.c b/drivers/webp/dsp/upsampling_mips_dsp_r2.c deleted file mode 100644 index ed2eb74825..0000000000 --- a/drivers/webp/dsp/upsampling_mips_dsp_r2.c +++ /dev/null @@ -1,282 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// YUV to RGB upsampling functions. -// -// Author(s): Branimir Vasic (branimir.vasic@imgtec.com) -// Djordje Pesut (djordje.pesut@imgtec.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_MIPS_DSP_R2) - -#include <assert.h> -#include "./yuv.h" - -#if !defined(WEBP_YUV_USE_TABLE) - -#define YUV_TO_RGB(Y, U, V, R, G, B) do { \ - const int t1 = MultHi(Y, 19077); \ - const int t2 = MultHi(V, 13320); \ - R = MultHi(V, 26149); \ - G = MultHi(U, 6419); \ - B = MultHi(U, 33050); \ - R = t1 + R; \ - G = t1 - G; \ - B = t1 + B; \ - R = R - 14234; \ - G = G - t2 + 8708; \ - B = B - 17685; \ - __asm__ volatile ( \ - "shll_s.w %[" #R "], %[" #R "], 17 \n\t" \ - "shll_s.w %[" #G "], %[" #G "], 17 \n\t" \ - "shll_s.w %[" #B "], %[" #B "], 17 \n\t" \ - "precrqu_s.qb.ph %[" #R "], %[" #R "], $zero \n\t" \ - "precrqu_s.qb.ph %[" #G "], %[" #G "], $zero \n\t" \ - "precrqu_s.qb.ph %[" #B "], %[" #B "], $zero \n\t" \ - "srl %[" #R "], %[" #R "], 24 \n\t" \ - "srl %[" #G "], %[" #G "], 24 \n\t" \ - "srl %[" #B "], %[" #B "], 24 \n\t" \ - : [R]"+r"(R), [G]"+r"(G), [B]"+r"(B) \ - : \ - ); \ - } while (0) - -static WEBP_INLINE void YuvToRgb(int y, int u, int v, uint8_t* const rgb) { - int r, g, b; - YUV_TO_RGB(y, u, v, r, g, b); - rgb[0] = r; - rgb[1] = g; - rgb[2] = b; -} -static WEBP_INLINE void YuvToBgr(int y, int u, int v, uint8_t* const bgr) { - int r, g, b; - YUV_TO_RGB(y, u, v, r, g, b); - bgr[0] = b; - bgr[1] = g; - bgr[2] = r; -} -static WEBP_INLINE void YuvToRgb565(int y, int u, int v, uint8_t* const rgb) { - int r, g, b; - YUV_TO_RGB(y, u, v, r, g, b); - { - const int rg = (r & 0xf8) | (g >> 5); - const int gb = ((g << 3) & 0xe0) | (b >> 3); -#ifdef WEBP_SWAP_16BIT_CSP - rgb[0] = gb; - rgb[1] = rg; -#else - rgb[0] = rg; - rgb[1] = gb; -#endif - } -} -static WEBP_INLINE void YuvToRgba4444(int y, int u, int v, - uint8_t* const argb) { - int r, g, b; - YUV_TO_RGB(y, u, v, r, g, b); - { - const int rg = (r & 0xf0) | (g >> 4); - const int ba = (b & 0xf0) | 0x0f; // overwrite the lower 4 bits -#ifdef WEBP_SWAP_16BIT_CSP - argb[0] = ba; - argb[1] = rg; -#else - argb[0] = rg; - argb[1] = ba; -#endif - } -} -#endif // WEBP_YUV_USE_TABLE - -//----------------------------------------------------------------------------- -// Alpha handling variants - -static WEBP_INLINE void YuvToArgb(uint8_t y, uint8_t u, uint8_t v, - uint8_t* const argb) { - int r, g, b; - YUV_TO_RGB(y, u, v, r, g, b); - argb[0] = 0xff; - argb[1] = r; - argb[2] = g; - argb[3] = b; -} -static WEBP_INLINE void YuvToBgra(uint8_t y, uint8_t u, uint8_t v, - uint8_t* const bgra) { - int r, g, b; - YUV_TO_RGB(y, u, v, r, g, b); - bgra[0] = b; - bgra[1] = g; - bgra[2] = r; - bgra[3] = 0xff; -} -static WEBP_INLINE void YuvToRgba(uint8_t y, uint8_t u, uint8_t v, - uint8_t* const rgba) { - int r, g, b; - YUV_TO_RGB(y, u, v, r, g, b); - rgba[0] = r; - rgba[1] = g; - rgba[2] = b; - rgba[3] = 0xff; -} - -//------------------------------------------------------------------------------ -// Fancy upsampler - -#ifdef FANCY_UPSAMPLING - -// Given samples laid out in a square as: -// [a b] -// [c d] -// we interpolate u/v as: -// ([9*a + 3*b + 3*c + d 3*a + 9*b + 3*c + d] + [8 8]) / 16 -// ([3*a + b + 9*c + 3*d a + 3*b + 3*c + 9*d] [8 8]) / 16 - -// We process u and v together stashed into 32bit (16bit each). -#define LOAD_UV(u, v) ((u) | ((v) << 16)) - -#define UPSAMPLE_FUNC(FUNC_NAME, FUNC, XSTEP) \ -static void FUNC_NAME(const uint8_t* top_y, const uint8_t* bottom_y, \ - const uint8_t* top_u, const uint8_t* top_v, \ - const uint8_t* cur_u, const uint8_t* cur_v, \ - uint8_t* top_dst, uint8_t* bottom_dst, int len) { \ - int x; \ - const int last_pixel_pair = (len - 1) >> 1; \ - uint32_t tl_uv = LOAD_UV(top_u[0], top_v[0]); /* top-left sample */ \ - uint32_t l_uv = LOAD_UV(cur_u[0], cur_v[0]); /* left-sample */ \ - assert(top_y != NULL); \ - { \ - const uint32_t uv0 = (3 * tl_uv + l_uv + 0x00020002u) >> 2; \ - FUNC(top_y[0], uv0 & 0xff, (uv0 >> 16), top_dst); \ - } \ - if (bottom_y != NULL) { \ - const uint32_t uv0 = (3 * l_uv + tl_uv + 0x00020002u) >> 2; \ - FUNC(bottom_y[0], uv0 & 0xff, (uv0 >> 16), bottom_dst); \ - } \ - for (x = 1; x <= last_pixel_pair; ++x) { \ - const uint32_t t_uv = LOAD_UV(top_u[x], top_v[x]); /* top sample */ \ - const uint32_t uv = LOAD_UV(cur_u[x], cur_v[x]); /* sample */ \ - /* precompute invariant values associated with first and second diagonals*/\ - const uint32_t avg = tl_uv + t_uv + l_uv + uv + 0x00080008u; \ - const uint32_t diag_12 = (avg + 2 * (t_uv + l_uv)) >> 3; \ - const uint32_t diag_03 = (avg + 2 * (tl_uv + uv)) >> 3; \ - { \ - const uint32_t uv0 = (diag_12 + tl_uv) >> 1; \ - const uint32_t uv1 = (diag_03 + t_uv) >> 1; \ - FUNC(top_y[2 * x - 1], uv0 & 0xff, (uv0 >> 16), \ - top_dst + (2 * x - 1) * XSTEP); \ - FUNC(top_y[2 * x - 0], uv1 & 0xff, (uv1 >> 16), \ - top_dst + (2 * x - 0) * XSTEP); \ - } \ - if (bottom_y != NULL) { \ - const uint32_t uv0 = (diag_03 + l_uv) >> 1; \ - const uint32_t uv1 = (diag_12 + uv) >> 1; \ - FUNC(bottom_y[2 * x - 1], uv0 & 0xff, (uv0 >> 16), \ - bottom_dst + (2 * x - 1) * XSTEP); \ - FUNC(bottom_y[2 * x + 0], uv1 & 0xff, (uv1 >> 16), \ - bottom_dst + (2 * x + 0) * XSTEP); \ - } \ - tl_uv = t_uv; \ - l_uv = uv; \ - } \ - if (!(len & 1)) { \ - { \ - const uint32_t uv0 = (3 * tl_uv + l_uv + 0x00020002u) >> 2; \ - FUNC(top_y[len - 1], uv0 & 0xff, (uv0 >> 16), \ - top_dst + (len - 1) * XSTEP); \ - } \ - if (bottom_y != NULL) { \ - const uint32_t uv0 = (3 * l_uv + tl_uv + 0x00020002u) >> 2; \ - FUNC(bottom_y[len - 1], uv0 & 0xff, (uv0 >> 16), \ - bottom_dst + (len - 1) * XSTEP); \ - } \ - } \ -} - -// All variants implemented. -UPSAMPLE_FUNC(UpsampleRgbLinePair, YuvToRgb, 3) -UPSAMPLE_FUNC(UpsampleBgrLinePair, YuvToBgr, 3) -UPSAMPLE_FUNC(UpsampleRgbaLinePair, YuvToRgba, 4) -UPSAMPLE_FUNC(UpsampleBgraLinePair, YuvToBgra, 4) -UPSAMPLE_FUNC(UpsampleArgbLinePair, YuvToArgb, 4) -UPSAMPLE_FUNC(UpsampleRgba4444LinePair, YuvToRgba4444, 2) -UPSAMPLE_FUNC(UpsampleRgb565LinePair, YuvToRgb565, 2) - -#undef LOAD_UV -#undef UPSAMPLE_FUNC - -//------------------------------------------------------------------------------ -// Entry point - -extern void WebPInitUpsamplersMIPSdspR2(void); - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitUpsamplersMIPSdspR2(void) { - WebPUpsamplers[MODE_RGB] = UpsampleRgbLinePair; - WebPUpsamplers[MODE_RGBA] = UpsampleRgbaLinePair; - WebPUpsamplers[MODE_BGR] = UpsampleBgrLinePair; - WebPUpsamplers[MODE_BGRA] = UpsampleBgraLinePair; - WebPUpsamplers[MODE_ARGB] = UpsampleArgbLinePair; - WebPUpsamplers[MODE_RGBA_4444] = UpsampleRgba4444LinePair; - WebPUpsamplers[MODE_RGB_565] = UpsampleRgb565LinePair; - WebPUpsamplers[MODE_rgbA] = UpsampleRgbaLinePair; - WebPUpsamplers[MODE_bgrA] = UpsampleBgraLinePair; - WebPUpsamplers[MODE_Argb] = UpsampleArgbLinePair; - WebPUpsamplers[MODE_rgbA_4444] = UpsampleRgba4444LinePair; -} - -#endif // FANCY_UPSAMPLING - -//------------------------------------------------------------------------------ -// YUV444 converter - -#define YUV444_FUNC(FUNC_NAME, FUNC, XSTEP) \ -static void FUNC_NAME(const uint8_t* y, const uint8_t* u, const uint8_t* v, \ - uint8_t* dst, int len) { \ - int i; \ - for (i = 0; i < len; ++i) FUNC(y[i], u[i], v[i], &dst[i * XSTEP]); \ -} - -YUV444_FUNC(Yuv444ToRgb, YuvToRgb, 3) -YUV444_FUNC(Yuv444ToBgr, YuvToBgr, 3) -YUV444_FUNC(Yuv444ToRgba, YuvToRgba, 4) -YUV444_FUNC(Yuv444ToBgra, YuvToBgra, 4) -YUV444_FUNC(Yuv444ToArgb, YuvToArgb, 4) -YUV444_FUNC(Yuv444ToRgba4444, YuvToRgba4444, 2) -YUV444_FUNC(Yuv444ToRgb565, YuvToRgb565, 2) - -#undef YUV444_FUNC - -//------------------------------------------------------------------------------ -// Entry point - -extern void WebPInitYUV444ConvertersMIPSdspR2(void); - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitYUV444ConvertersMIPSdspR2(void) { - WebPYUV444Converters[MODE_RGB] = Yuv444ToRgb; - WebPYUV444Converters[MODE_RGBA] = Yuv444ToRgba; - WebPYUV444Converters[MODE_BGR] = Yuv444ToBgr; - WebPYUV444Converters[MODE_BGRA] = Yuv444ToBgra; - WebPYUV444Converters[MODE_ARGB] = Yuv444ToArgb; - WebPYUV444Converters[MODE_RGBA_4444] = Yuv444ToRgba4444; - WebPYUV444Converters[MODE_RGB_565] = Yuv444ToRgb565; - WebPYUV444Converters[MODE_rgbA] = Yuv444ToRgba; - WebPYUV444Converters[MODE_bgrA] = Yuv444ToBgra; - WebPYUV444Converters[MODE_Argb] = Yuv444ToArgb; - WebPYUV444Converters[MODE_rgbA_4444] = Yuv444ToRgba4444; -} - -#else // !WEBP_USE_MIPS_DSP_R2 - -WEBP_DSP_INIT_STUB(WebPInitYUV444ConvertersMIPSdspR2) - -#endif // WEBP_USE_MIPS_DSP_R2 - -#if !(defined(FANCY_UPSAMPLING) && defined(WEBP_USE_MIPS_DSP_R2)) -WEBP_DSP_INIT_STUB(WebPInitUpsamplersMIPSdspR2) -#endif diff --git a/drivers/webp/dsp/upsampling_neon.c b/drivers/webp/dsp/upsampling_neon.c deleted file mode 100644 index 2b0c99bddb..0000000000 --- a/drivers/webp/dsp/upsampling_neon.c +++ /dev/null @@ -1,300 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// NEON version of YUV to RGB upsampling functions. -// -// Author: mans@mansr.com (Mans Rullgard) -// Based on SSE code by: somnath@google.com (Somnath Banerjee) - -#include "./dsp.h" - -#if defined(WEBP_USE_NEON) - -#include <assert.h> -#include <arm_neon.h> -#include <string.h> -#include "./neon.h" -#include "./yuv.h" - -#ifdef FANCY_UPSAMPLING - -//----------------------------------------------------------------------------- -// U/V upsampling - -// Loads 9 pixels each from rows r1 and r2 and generates 16 pixels. -#define UPSAMPLE_16PIXELS(r1, r2, out) { \ - uint8x8_t a = vld1_u8(r1); \ - uint8x8_t b = vld1_u8(r1 + 1); \ - uint8x8_t c = vld1_u8(r2); \ - uint8x8_t d = vld1_u8(r2 + 1); \ - \ - uint16x8_t al = vshll_n_u8(a, 1); \ - uint16x8_t bl = vshll_n_u8(b, 1); \ - uint16x8_t cl = vshll_n_u8(c, 1); \ - uint16x8_t dl = vshll_n_u8(d, 1); \ - \ - uint8x8_t diag1, diag2; \ - uint16x8_t sl; \ - \ - /* a + b + c + d */ \ - sl = vaddl_u8(a, b); \ - sl = vaddw_u8(sl, c); \ - sl = vaddw_u8(sl, d); \ - \ - al = vaddq_u16(sl, al); /* 3a + b + c + d */ \ - bl = vaddq_u16(sl, bl); /* a + 3b + c + d */ \ - \ - al = vaddq_u16(al, dl); /* 3a + b + c + 3d */ \ - bl = vaddq_u16(bl, cl); /* a + 3b + 3c + d */ \ - \ - diag2 = vshrn_n_u16(al, 3); \ - diag1 = vshrn_n_u16(bl, 3); \ - \ - a = vrhadd_u8(a, diag1); \ - b = vrhadd_u8(b, diag2); \ - c = vrhadd_u8(c, diag2); \ - d = vrhadd_u8(d, diag1); \ - \ - { \ - uint8x8x2_t a_b, c_d; \ - INIT_VECTOR2(a_b, a, b); \ - INIT_VECTOR2(c_d, c, d); \ - vst2_u8(out, a_b); \ - vst2_u8(out + 32, c_d); \ - } \ -} - -// Turn the macro into a function for reducing code-size when non-critical -static void Upsample16Pixels(const uint8_t *r1, const uint8_t *r2, - uint8_t *out) { - UPSAMPLE_16PIXELS(r1, r2, out); -} - -#define UPSAMPLE_LAST_BLOCK(tb, bb, num_pixels, out) { \ - uint8_t r1[9], r2[9]; \ - memcpy(r1, (tb), (num_pixels)); \ - memcpy(r2, (bb), (num_pixels)); \ - /* replicate last byte */ \ - memset(r1 + (num_pixels), r1[(num_pixels) - 1], 9 - (num_pixels)); \ - memset(r2 + (num_pixels), r2[(num_pixels) - 1], 9 - (num_pixels)); \ - Upsample16Pixels(r1, r2, out); \ -} - -//----------------------------------------------------------------------------- -// YUV->RGB conversion - -// note: we represent the 33050 large constant as 32768 + 282 -static const int16_t kCoeffs1[4] = { 19077, 26149, 6419, 13320 }; - -#define v255 vdup_n_u8(255) -#define v_0x0f vdup_n_u8(15) - -#define STORE_Rgb(out, r, g, b) do { \ - uint8x8x3_t r_g_b; \ - INIT_VECTOR3(r_g_b, r, g, b); \ - vst3_u8(out, r_g_b); \ -} while (0) - -#define STORE_Bgr(out, r, g, b) do { \ - uint8x8x3_t b_g_r; \ - INIT_VECTOR3(b_g_r, b, g, r); \ - vst3_u8(out, b_g_r); \ -} while (0) - -#define STORE_Rgba(out, r, g, b) do { \ - uint8x8x4_t r_g_b_v255; \ - INIT_VECTOR4(r_g_b_v255, r, g, b, v255); \ - vst4_u8(out, r_g_b_v255); \ -} while (0) - -#define STORE_Bgra(out, r, g, b) do { \ - uint8x8x4_t b_g_r_v255; \ - INIT_VECTOR4(b_g_r_v255, b, g, r, v255); \ - vst4_u8(out, b_g_r_v255); \ -} while (0) - -#define STORE_Argb(out, r, g, b) do { \ - uint8x8x4_t v255_r_g_b; \ - INIT_VECTOR4(v255_r_g_b, v255, r, g, b); \ - vst4_u8(out, v255_r_g_b); \ -} while (0) - -#if !defined(WEBP_SWAP_16BIT_CSP) -#define ZIP_U8(lo, hi) vzip_u8((lo), (hi)) -#else -#define ZIP_U8(lo, hi) vzip_u8((hi), (lo)) -#endif - -#define STORE_Rgba4444(out, r, g, b) do { \ - const uint8x8_t r1 = vshl_n_u8(vshr_n_u8(r, 4), 4); /* 4bits */ \ - const uint8x8_t g1 = vshr_n_u8(g, 4); \ - const uint8x8_t ba = vorr_u8(b, v_0x0f); \ - const uint8x8_t rg = vorr_u8(r1, g1); \ - const uint8x8x2_t rgba4444 = ZIP_U8(rg, ba); \ - vst1q_u8(out, vcombine_u8(rgba4444.val[0], rgba4444.val[1])); \ -} while (0) - -#define STORE_Rgb565(out, r, g, b) do { \ - const uint8x8_t r1 = vshl_n_u8(vshr_n_u8(r, 3), 3); /* 5bits */ \ - const uint8x8_t g1 = vshr_n_u8(g, 5); /* upper 3bits */\ - const uint8x8_t g2 = vshl_n_u8(vshr_n_u8(g, 2), 5); /* lower 3bits */\ - const uint8x8_t b1 = vshr_n_u8(b, 3); /* 5bits */ \ - const uint8x8_t rg = vorr_u8(r1, g1); \ - const uint8x8_t gb = vorr_u8(g2, b1); \ - const uint8x8x2_t rgb565 = ZIP_U8(rg, gb); \ - vst1q_u8(out, vcombine_u8(rgb565.val[0], rgb565.val[1])); \ -} while (0) - -#define CONVERT8(FMT, XSTEP, N, src_y, src_uv, out, cur_x) do { \ - int i; \ - for (i = 0; i < N; i += 8) { \ - const int off = ((cur_x) + i) * XSTEP; \ - const uint8x8_t y = vld1_u8((src_y) + (cur_x) + i); \ - const uint8x8_t u = vld1_u8((src_uv) + i + 0); \ - const uint8x8_t v = vld1_u8((src_uv) + i + 16); \ - const int16x8_t Y0 = vreinterpretq_s16_u16(vshll_n_u8(y, 7)); \ - const int16x8_t U0 = vreinterpretq_s16_u16(vshll_n_u8(u, 7)); \ - const int16x8_t V0 = vreinterpretq_s16_u16(vshll_n_u8(v, 7)); \ - const int16x8_t Y1 = vqdmulhq_lane_s16(Y0, coeff1, 0); \ - const int16x8_t R0 = vqdmulhq_lane_s16(V0, coeff1, 1); \ - const int16x8_t G0 = vqdmulhq_lane_s16(U0, coeff1, 2); \ - const int16x8_t G1 = vqdmulhq_lane_s16(V0, coeff1, 3); \ - const int16x8_t B0 = vqdmulhq_n_s16(U0, 282); \ - const int16x8_t R1 = vqaddq_s16(Y1, R_Rounder); \ - const int16x8_t G2 = vqaddq_s16(Y1, G_Rounder); \ - const int16x8_t B1 = vqaddq_s16(Y1, B_Rounder); \ - const int16x8_t R2 = vqaddq_s16(R0, R1); \ - const int16x8_t G3 = vqaddq_s16(G0, G1); \ - const int16x8_t B2 = vqaddq_s16(B0, B1); \ - const int16x8_t G4 = vqsubq_s16(G2, G3); \ - const int16x8_t B3 = vqaddq_s16(B2, U0); \ - const uint8x8_t R = vqshrun_n_s16(R2, YUV_FIX2); \ - const uint8x8_t G = vqshrun_n_s16(G4, YUV_FIX2); \ - const uint8x8_t B = vqshrun_n_s16(B3, YUV_FIX2); \ - STORE_ ## FMT(out + off, R, G, B); \ - } \ -} while (0) - -#define CONVERT1(FUNC, XSTEP, N, src_y, src_uv, rgb, cur_x) { \ - int i; \ - for (i = 0; i < N; i++) { \ - const int off = ((cur_x) + i) * XSTEP; \ - const int y = src_y[(cur_x) + i]; \ - const int u = (src_uv)[i]; \ - const int v = (src_uv)[i + 16]; \ - FUNC(y, u, v, rgb + off); \ - } \ -} - -#define CONVERT2RGB_8(FMT, XSTEP, top_y, bottom_y, uv, \ - top_dst, bottom_dst, cur_x, len) { \ - CONVERT8(FMT, XSTEP, len, top_y, uv, top_dst, cur_x); \ - if (bottom_y != NULL) { \ - CONVERT8(FMT, XSTEP, len, bottom_y, (uv) + 32, bottom_dst, cur_x); \ - } \ -} - -#define CONVERT2RGB_1(FUNC, XSTEP, top_y, bottom_y, uv, \ - top_dst, bottom_dst, cur_x, len) { \ - CONVERT1(FUNC, XSTEP, len, top_y, uv, top_dst, cur_x); \ - if (bottom_y != NULL) { \ - CONVERT1(FUNC, XSTEP, len, bottom_y, (uv) + 32, bottom_dst, cur_x); \ - } \ -} - -#define NEON_UPSAMPLE_FUNC(FUNC_NAME, FMT, XSTEP) \ -static void FUNC_NAME(const uint8_t *top_y, const uint8_t *bottom_y, \ - const uint8_t *top_u, const uint8_t *top_v, \ - const uint8_t *cur_u, const uint8_t *cur_v, \ - uint8_t *top_dst, uint8_t *bottom_dst, int len) { \ - int block; \ - /* 16 byte aligned array to cache reconstructed u and v */ \ - uint8_t uv_buf[2 * 32 + 15]; \ - uint8_t *const r_uv = (uint8_t*)((uintptr_t)(uv_buf + 15) & ~15); \ - const int uv_len = (len + 1) >> 1; \ - /* 9 pixels must be read-able for each block */ \ - const int num_blocks = (uv_len - 1) >> 3; \ - const int leftover = uv_len - num_blocks * 8; \ - const int last_pos = 1 + 16 * num_blocks; \ - \ - const int u_diag = ((top_u[0] + cur_u[0]) >> 1) + 1; \ - const int v_diag = ((top_v[0] + cur_v[0]) >> 1) + 1; \ - \ - const int16x4_t coeff1 = vld1_s16(kCoeffs1); \ - const int16x8_t R_Rounder = vdupq_n_s16(-14234); \ - const int16x8_t G_Rounder = vdupq_n_s16(8708); \ - const int16x8_t B_Rounder = vdupq_n_s16(-17685); \ - \ - /* Treat the first pixel in regular way */ \ - assert(top_y != NULL); \ - { \ - const int u0 = (top_u[0] + u_diag) >> 1; \ - const int v0 = (top_v[0] + v_diag) >> 1; \ - VP8YuvTo ## FMT(top_y[0], u0, v0, top_dst); \ - } \ - if (bottom_y != NULL) { \ - const int u0 = (cur_u[0] + u_diag) >> 1; \ - const int v0 = (cur_v[0] + v_diag) >> 1; \ - VP8YuvTo ## FMT(bottom_y[0], u0, v0, bottom_dst); \ - } \ - \ - for (block = 0; block < num_blocks; ++block) { \ - UPSAMPLE_16PIXELS(top_u, cur_u, r_uv); \ - UPSAMPLE_16PIXELS(top_v, cur_v, r_uv + 16); \ - CONVERT2RGB_8(FMT, XSTEP, top_y, bottom_y, r_uv, \ - top_dst, bottom_dst, 16 * block + 1, 16); \ - top_u += 8; \ - cur_u += 8; \ - top_v += 8; \ - cur_v += 8; \ - } \ - \ - UPSAMPLE_LAST_BLOCK(top_u, cur_u, leftover, r_uv); \ - UPSAMPLE_LAST_BLOCK(top_v, cur_v, leftover, r_uv + 16); \ - CONVERT2RGB_1(VP8YuvTo ## FMT, XSTEP, top_y, bottom_y, r_uv, \ - top_dst, bottom_dst, last_pos, len - last_pos); \ -} - -// NEON variants of the fancy upsampler. -NEON_UPSAMPLE_FUNC(UpsampleRgbLinePair, Rgb, 3) -NEON_UPSAMPLE_FUNC(UpsampleBgrLinePair, Bgr, 3) -NEON_UPSAMPLE_FUNC(UpsampleRgbaLinePair, Rgba, 4) -NEON_UPSAMPLE_FUNC(UpsampleBgraLinePair, Bgra, 4) -NEON_UPSAMPLE_FUNC(UpsampleArgbLinePair, Argb, 4) -NEON_UPSAMPLE_FUNC(UpsampleRgba4444LinePair, Rgba4444, 2) -NEON_UPSAMPLE_FUNC(UpsampleRgb565LinePair, Rgb565, 2) - -//------------------------------------------------------------------------------ -// Entry point - -extern WebPUpsampleLinePairFunc WebPUpsamplers[/* MODE_LAST */]; - -extern void WebPInitUpsamplersNEON(void); - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitUpsamplersNEON(void) { - WebPUpsamplers[MODE_RGB] = UpsampleRgbLinePair; - WebPUpsamplers[MODE_RGBA] = UpsampleRgbaLinePair; - WebPUpsamplers[MODE_BGR] = UpsampleBgrLinePair; - WebPUpsamplers[MODE_BGRA] = UpsampleBgraLinePair; - WebPUpsamplers[MODE_ARGB] = UpsampleArgbLinePair; - WebPUpsamplers[MODE_rgbA] = UpsampleRgbaLinePair; - WebPUpsamplers[MODE_bgrA] = UpsampleBgraLinePair; - WebPUpsamplers[MODE_Argb] = UpsampleArgbLinePair; - WebPUpsamplers[MODE_RGB_565] = UpsampleRgb565LinePair; - WebPUpsamplers[MODE_RGBA_4444] = UpsampleRgba4444LinePair; - WebPUpsamplers[MODE_rgbA_4444] = UpsampleRgba4444LinePair; -} - -#endif // FANCY_UPSAMPLING - -#endif // WEBP_USE_NEON - -#if !(defined(FANCY_UPSAMPLING) && defined(WEBP_USE_NEON)) -WEBP_DSP_INIT_STUB(WebPInitUpsamplersNEON) -#endif diff --git a/drivers/webp/dsp/upsampling_sse2.c b/drivers/webp/dsp/upsampling_sse2.c deleted file mode 100644 index b5b668900f..0000000000 --- a/drivers/webp/dsp/upsampling_sse2.c +++ /dev/null @@ -1,249 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// SSE2 version of YUV to RGB upsampling functions. -// -// Author: somnath@google.com (Somnath Banerjee) - -#include "./dsp.h" - -#if defined(WEBP_USE_SSE2) - -#include <assert.h> -#include <emmintrin.h> -#include <string.h> -#include "./yuv.h" - -#ifdef FANCY_UPSAMPLING - -// We compute (9*a + 3*b + 3*c + d + 8) / 16 as follows -// u = (9*a + 3*b + 3*c + d + 8) / 16 -// = (a + (a + 3*b + 3*c + d) / 8 + 1) / 2 -// = (a + m + 1) / 2 -// where m = (a + 3*b + 3*c + d) / 8 -// = ((a + b + c + d) / 2 + b + c) / 4 -// -// Let's say k = (a + b + c + d) / 4. -// We can compute k as -// k = (s + t + 1) / 2 - ((a^d) | (b^c) | (s^t)) & 1 -// where s = (a + d + 1) / 2 and t = (b + c + 1) / 2 -// -// Then m can be written as -// m = (k + t + 1) / 2 - (((b^c) & (s^t)) | (k^t)) & 1 - -// Computes out = (k + in + 1) / 2 - ((ij & (s^t)) | (k^in)) & 1 -#define GET_M(ij, in, out) do { \ - const __m128i tmp0 = _mm_avg_epu8(k, (in)); /* (k + in + 1) / 2 */ \ - const __m128i tmp1 = _mm_and_si128((ij), st); /* (ij) & (s^t) */ \ - const __m128i tmp2 = _mm_xor_si128(k, (in)); /* (k^in) */ \ - const __m128i tmp3 = _mm_or_si128(tmp1, tmp2); /* ((ij) & (s^t)) | (k^in) */\ - const __m128i tmp4 = _mm_and_si128(tmp3, one); /* & 1 -> lsb_correction */ \ - (out) = _mm_sub_epi8(tmp0, tmp4); /* (k + in + 1) / 2 - lsb_correction */ \ -} while (0) - -// pack and store two alternating pixel rows -#define PACK_AND_STORE(a, b, da, db, out) do { \ - const __m128i t_a = _mm_avg_epu8(a, da); /* (9a + 3b + 3c + d + 8) / 16 */ \ - const __m128i t_b = _mm_avg_epu8(b, db); /* (3a + 9b + c + 3d + 8) / 16 */ \ - const __m128i t_1 = _mm_unpacklo_epi8(t_a, t_b); \ - const __m128i t_2 = _mm_unpackhi_epi8(t_a, t_b); \ - _mm_store_si128(((__m128i*)(out)) + 0, t_1); \ - _mm_store_si128(((__m128i*)(out)) + 1, t_2); \ -} while (0) - -// Loads 17 pixels each from rows r1 and r2 and generates 32 pixels. -#define UPSAMPLE_32PIXELS(r1, r2, out) { \ - const __m128i one = _mm_set1_epi8(1); \ - const __m128i a = _mm_loadu_si128((const __m128i*)&(r1)[0]); \ - const __m128i b = _mm_loadu_si128((const __m128i*)&(r1)[1]); \ - const __m128i c = _mm_loadu_si128((const __m128i*)&(r2)[0]); \ - const __m128i d = _mm_loadu_si128((const __m128i*)&(r2)[1]); \ - \ - const __m128i s = _mm_avg_epu8(a, d); /* s = (a + d + 1) / 2 */ \ - const __m128i t = _mm_avg_epu8(b, c); /* t = (b + c + 1) / 2 */ \ - const __m128i st = _mm_xor_si128(s, t); /* st = s^t */ \ - \ - const __m128i ad = _mm_xor_si128(a, d); /* ad = a^d */ \ - const __m128i bc = _mm_xor_si128(b, c); /* bc = b^c */ \ - \ - const __m128i t1 = _mm_or_si128(ad, bc); /* (a^d) | (b^c) */ \ - const __m128i t2 = _mm_or_si128(t1, st); /* (a^d) | (b^c) | (s^t) */ \ - const __m128i t3 = _mm_and_si128(t2, one); /* (a^d) | (b^c) | (s^t) & 1 */ \ - const __m128i t4 = _mm_avg_epu8(s, t); \ - const __m128i k = _mm_sub_epi8(t4, t3); /* k = (a + b + c + d) / 4 */ \ - __m128i diag1, diag2; \ - \ - GET_M(bc, t, diag1); /* diag1 = (a + 3b + 3c + d) / 8 */ \ - GET_M(ad, s, diag2); /* diag2 = (3a + b + c + 3d) / 8 */ \ - \ - /* pack the alternate pixels */ \ - PACK_AND_STORE(a, b, diag1, diag2, out + 0); /* store top */ \ - PACK_AND_STORE(c, d, diag2, diag1, out + 2 * 32); /* store bottom */ \ -} - -// Turn the macro into a function for reducing code-size when non-critical -static void Upsample32Pixels(const uint8_t r1[], const uint8_t r2[], - uint8_t* const out) { - UPSAMPLE_32PIXELS(r1, r2, out); -} - -#define UPSAMPLE_LAST_BLOCK(tb, bb, num_pixels, out) { \ - uint8_t r1[17], r2[17]; \ - memcpy(r1, (tb), (num_pixels)); \ - memcpy(r2, (bb), (num_pixels)); \ - /* replicate last byte */ \ - memset(r1 + (num_pixels), r1[(num_pixels) - 1], 17 - (num_pixels)); \ - memset(r2 + (num_pixels), r2[(num_pixels) - 1], 17 - (num_pixels)); \ - /* using the shared function instead of the macro saves ~3k code size */ \ - Upsample32Pixels(r1, r2, out); \ -} - -#define CONVERT2RGB(FUNC, XSTEP, top_y, bottom_y, \ - top_dst, bottom_dst, cur_x, num_pixels) { \ - int n; \ - for (n = 0; n < (num_pixels); ++n) { \ - FUNC(top_y[(cur_x) + n], r_u[n], r_v[n], \ - top_dst + ((cur_x) + n) * XSTEP); \ - } \ - if (bottom_y != NULL) { \ - for (n = 0; n < (num_pixels); ++n) { \ - FUNC(bottom_y[(cur_x) + n], r_u[64 + n], r_v[64 + n], \ - bottom_dst + ((cur_x) + n) * XSTEP); \ - } \ - } \ -} - -#define CONVERT2RGB_32(FUNC, XSTEP, top_y, bottom_y, \ - top_dst, bottom_dst, cur_x) do { \ - FUNC##32(top_y + (cur_x), r_u, r_v, top_dst + (cur_x) * XSTEP); \ - if (bottom_y != NULL) { \ - FUNC##32(bottom_y + (cur_x), r_u + 64, r_v + 64, \ - bottom_dst + (cur_x) * XSTEP); \ - } \ -} while (0) - -#define SSE2_UPSAMPLE_FUNC(FUNC_NAME, FUNC, XSTEP) \ -static void FUNC_NAME(const uint8_t* top_y, const uint8_t* bottom_y, \ - const uint8_t* top_u, const uint8_t* top_v, \ - const uint8_t* cur_u, const uint8_t* cur_v, \ - uint8_t* top_dst, uint8_t* bottom_dst, int len) { \ - int uv_pos, pos; \ - /* 16byte-aligned array to cache reconstructed u and v */ \ - uint8_t uv_buf[4 * 32 + 15]; \ - uint8_t* const r_u = (uint8_t*)((uintptr_t)(uv_buf + 15) & ~15); \ - uint8_t* const r_v = r_u + 32; \ - \ - assert(top_y != NULL); \ - { /* Treat the first pixel in regular way */ \ - const int u_diag = ((top_u[0] + cur_u[0]) >> 1) + 1; \ - const int v_diag = ((top_v[0] + cur_v[0]) >> 1) + 1; \ - const int u0_t = (top_u[0] + u_diag) >> 1; \ - const int v0_t = (top_v[0] + v_diag) >> 1; \ - FUNC(top_y[0], u0_t, v0_t, top_dst); \ - if (bottom_y != NULL) { \ - const int u0_b = (cur_u[0] + u_diag) >> 1; \ - const int v0_b = (cur_v[0] + v_diag) >> 1; \ - FUNC(bottom_y[0], u0_b, v0_b, bottom_dst); \ - } \ - } \ - /* For UPSAMPLE_32PIXELS, 17 u/v values must be read-able for each block */ \ - for (pos = 1, uv_pos = 0; pos + 32 + 1 <= len; pos += 32, uv_pos += 16) { \ - UPSAMPLE_32PIXELS(top_u + uv_pos, cur_u + uv_pos, r_u); \ - UPSAMPLE_32PIXELS(top_v + uv_pos, cur_v + uv_pos, r_v); \ - CONVERT2RGB_32(FUNC, XSTEP, top_y, bottom_y, top_dst, bottom_dst, pos); \ - } \ - if (len > 1) { \ - const int left_over = ((len + 1) >> 1) - (pos >> 1); \ - assert(left_over > 0); \ - UPSAMPLE_LAST_BLOCK(top_u + uv_pos, cur_u + uv_pos, left_over, r_u); \ - UPSAMPLE_LAST_BLOCK(top_v + uv_pos, cur_v + uv_pos, left_over, r_v); \ - CONVERT2RGB(FUNC, XSTEP, top_y, bottom_y, top_dst, bottom_dst, \ - pos, len - pos); \ - } \ -} - -// SSE2 variants of the fancy upsampler. -SSE2_UPSAMPLE_FUNC(UpsampleRgbLinePair, VP8YuvToRgb, 3) -SSE2_UPSAMPLE_FUNC(UpsampleBgrLinePair, VP8YuvToBgr, 3) -SSE2_UPSAMPLE_FUNC(UpsampleRgbaLinePair, VP8YuvToRgba, 4) -SSE2_UPSAMPLE_FUNC(UpsampleBgraLinePair, VP8YuvToBgra, 4) -SSE2_UPSAMPLE_FUNC(UpsampleArgbLinePair, VP8YuvToArgb, 4) -SSE2_UPSAMPLE_FUNC(UpsampleRgba4444LinePair, VP8YuvToRgba4444, 2) -SSE2_UPSAMPLE_FUNC(UpsampleRgb565LinePair, VP8YuvToRgb565, 2) - -#undef GET_M -#undef PACK_AND_STORE -#undef UPSAMPLE_32PIXELS -#undef UPSAMPLE_LAST_BLOCK -#undef CONVERT2RGB -#undef CONVERT2RGB_32 -#undef SSE2_UPSAMPLE_FUNC - -//------------------------------------------------------------------------------ -// Entry point - -extern WebPUpsampleLinePairFunc WebPUpsamplers[/* MODE_LAST */]; - -extern void WebPInitUpsamplersSSE2(void); - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitUpsamplersSSE2(void) { - WebPUpsamplers[MODE_RGB] = UpsampleRgbLinePair; - WebPUpsamplers[MODE_RGBA] = UpsampleRgbaLinePair; - WebPUpsamplers[MODE_BGR] = UpsampleBgrLinePair; - WebPUpsamplers[MODE_BGRA] = UpsampleBgraLinePair; - WebPUpsamplers[MODE_ARGB] = UpsampleArgbLinePair; - WebPUpsamplers[MODE_rgbA] = UpsampleRgbaLinePair; - WebPUpsamplers[MODE_bgrA] = UpsampleBgraLinePair; - WebPUpsamplers[MODE_Argb] = UpsampleArgbLinePair; - WebPUpsamplers[MODE_RGB_565] = UpsampleRgb565LinePair; - WebPUpsamplers[MODE_RGBA_4444] = UpsampleRgba4444LinePair; - WebPUpsamplers[MODE_rgbA_4444] = UpsampleRgba4444LinePair; -} - -#endif // FANCY_UPSAMPLING - -//------------------------------------------------------------------------------ - -extern WebPYUV444Converter WebPYUV444Converters[/* MODE_LAST */]; -extern void WebPInitYUV444ConvertersSSE2(void); - -#define YUV444_FUNC(FUNC_NAME, CALL, XSTEP) \ -extern void WebP##FUNC_NAME##C(const uint8_t* y, const uint8_t* u, \ - const uint8_t* v, uint8_t* dst, int len); \ -static void FUNC_NAME(const uint8_t* y, const uint8_t* u, const uint8_t* v, \ - uint8_t* dst, int len) { \ - int i; \ - const int max_len = len & ~31; \ - for (i = 0; i < max_len; i += 32) CALL(y + i, u + i, v + i, dst + i * XSTEP);\ - if (i < len) { /* C-fallback */ \ - WebP##FUNC_NAME##C(y + i, u + i, v + i, dst + i * XSTEP, len - i); \ - } \ -} - -YUV444_FUNC(Yuv444ToRgba, VP8YuvToRgba32, 4); -YUV444_FUNC(Yuv444ToBgra, VP8YuvToBgra32, 4); -YUV444_FUNC(Yuv444ToRgb, VP8YuvToRgb32, 3); -YUV444_FUNC(Yuv444ToBgr, VP8YuvToBgr32, 3); - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitYUV444ConvertersSSE2(void) { - WebPYUV444Converters[MODE_RGBA] = Yuv444ToRgba; - WebPYUV444Converters[MODE_BGRA] = Yuv444ToBgra; - WebPYUV444Converters[MODE_RGB] = Yuv444ToRgb; - WebPYUV444Converters[MODE_BGR] = Yuv444ToBgr; -} - -#else - -WEBP_DSP_INIT_STUB(WebPInitYUV444ConvertersSSE2) - -#endif // WEBP_USE_SSE2 - -#if !(defined(FANCY_UPSAMPLING) && defined(WEBP_USE_SSE2)) -WEBP_DSP_INIT_STUB(WebPInitUpsamplersSSE2) -#endif diff --git a/drivers/webp/dsp/yuv.c b/drivers/webp/dsp/yuv.c deleted file mode 100644 index f50a253168..0000000000 --- a/drivers/webp/dsp/yuv.c +++ /dev/null @@ -1,280 +0,0 @@ -// Copyright 2010 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// YUV->RGB conversion functions -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./yuv.h" - -#if defined(WEBP_YUV_USE_TABLE) - -static int done = 0; - -static WEBP_INLINE uint8_t clip(int v, int max_value) { - return v < 0 ? 0 : v > max_value ? max_value : v; -} - -int16_t VP8kVToR[256], VP8kUToB[256]; -int32_t VP8kVToG[256], VP8kUToG[256]; -uint8_t VP8kClip[YUV_RANGE_MAX - YUV_RANGE_MIN]; -uint8_t VP8kClip4Bits[YUV_RANGE_MAX - YUV_RANGE_MIN]; - -WEBP_TSAN_IGNORE_FUNCTION void VP8YUVInit(void) { - int i; - if (done) { - return; - } -#ifndef USE_YUVj - for (i = 0; i < 256; ++i) { - VP8kVToR[i] = (89858 * (i - 128) + YUV_HALF) >> YUV_FIX; - VP8kUToG[i] = -22014 * (i - 128) + YUV_HALF; - VP8kVToG[i] = -45773 * (i - 128); - VP8kUToB[i] = (113618 * (i - 128) + YUV_HALF) >> YUV_FIX; - } - for (i = YUV_RANGE_MIN; i < YUV_RANGE_MAX; ++i) { - const int k = ((i - 16) * 76283 + YUV_HALF) >> YUV_FIX; - VP8kClip[i - YUV_RANGE_MIN] = clip(k, 255); - VP8kClip4Bits[i - YUV_RANGE_MIN] = clip((k + 8) >> 4, 15); - } -#else - for (i = 0; i < 256; ++i) { - VP8kVToR[i] = (91881 * (i - 128) + YUV_HALF) >> YUV_FIX; - VP8kUToG[i] = -22554 * (i - 128) + YUV_HALF; - VP8kVToG[i] = -46802 * (i - 128); - VP8kUToB[i] = (116130 * (i - 128) + YUV_HALF) >> YUV_FIX; - } - for (i = YUV_RANGE_MIN; i < YUV_RANGE_MAX; ++i) { - const int k = i; - VP8kClip[i - YUV_RANGE_MIN] = clip(k, 255); - VP8kClip4Bits[i - YUV_RANGE_MIN] = clip((k + 8) >> 4, 15); - } -#endif - - done = 1; -} - -#else - -WEBP_TSAN_IGNORE_FUNCTION void VP8YUVInit(void) {} - -#endif // WEBP_YUV_USE_TABLE - -//----------------------------------------------------------------------------- -// Plain-C version - -#define ROW_FUNC(FUNC_NAME, FUNC, XSTEP) \ -static void FUNC_NAME(const uint8_t* y, \ - const uint8_t* u, const uint8_t* v, \ - uint8_t* dst, int len) { \ - const uint8_t* const end = dst + (len & ~1) * XSTEP; \ - while (dst != end) { \ - FUNC(y[0], u[0], v[0], dst); \ - FUNC(y[1], u[0], v[0], dst + XSTEP); \ - y += 2; \ - ++u; \ - ++v; \ - dst += 2 * XSTEP; \ - } \ - if (len & 1) { \ - FUNC(y[0], u[0], v[0], dst); \ - } \ -} \ - -// All variants implemented. -ROW_FUNC(YuvToRgbRow, VP8YuvToRgb, 3) -ROW_FUNC(YuvToBgrRow, VP8YuvToBgr, 3) -ROW_FUNC(YuvToRgbaRow, VP8YuvToRgba, 4) -ROW_FUNC(YuvToBgraRow, VP8YuvToBgra, 4) -ROW_FUNC(YuvToArgbRow, VP8YuvToArgb, 4) -ROW_FUNC(YuvToRgba4444Row, VP8YuvToRgba4444, 2) -ROW_FUNC(YuvToRgb565Row, VP8YuvToRgb565, 2) - -#undef ROW_FUNC - -// Main call for processing a plane with a WebPSamplerRowFunc function: -void WebPSamplerProcessPlane(const uint8_t* y, int y_stride, - const uint8_t* u, const uint8_t* v, int uv_stride, - uint8_t* dst, int dst_stride, - int width, int height, WebPSamplerRowFunc func) { - int j; - for (j = 0; j < height; ++j) { - func(y, u, v, dst, width); - y += y_stride; - if (j & 1) { - u += uv_stride; - v += uv_stride; - } - dst += dst_stride; - } -} - -//----------------------------------------------------------------------------- -// Main call - -WebPSamplerRowFunc WebPSamplers[MODE_LAST]; - -extern void WebPInitSamplersSSE2(void); -extern void WebPInitSamplersMIPS32(void); -extern void WebPInitSamplersMIPSdspR2(void); - -static volatile VP8CPUInfo yuv_last_cpuinfo_used = - (VP8CPUInfo)&yuv_last_cpuinfo_used; - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitSamplers(void) { - if (yuv_last_cpuinfo_used == VP8GetCPUInfo) return; - - WebPSamplers[MODE_RGB] = YuvToRgbRow; - WebPSamplers[MODE_RGBA] = YuvToRgbaRow; - WebPSamplers[MODE_BGR] = YuvToBgrRow; - WebPSamplers[MODE_BGRA] = YuvToBgraRow; - WebPSamplers[MODE_ARGB] = YuvToArgbRow; - WebPSamplers[MODE_RGBA_4444] = YuvToRgba4444Row; - WebPSamplers[MODE_RGB_565] = YuvToRgb565Row; - WebPSamplers[MODE_rgbA] = YuvToRgbaRow; - WebPSamplers[MODE_bgrA] = YuvToBgraRow; - WebPSamplers[MODE_Argb] = YuvToArgbRow; - WebPSamplers[MODE_rgbA_4444] = YuvToRgba4444Row; - - // If defined, use CPUInfo() to overwrite some pointers with faster versions. - if (VP8GetCPUInfo != NULL) { -#if defined(WEBP_USE_SSE2) - if (VP8GetCPUInfo(kSSE2)) { - WebPInitSamplersSSE2(); - } -#endif // WEBP_USE_SSE2 -#if defined(WEBP_USE_MIPS32) - if (VP8GetCPUInfo(kMIPS32)) { - WebPInitSamplersMIPS32(); - } -#endif // WEBP_USE_MIPS32 -#if defined(WEBP_USE_MIPS_DSP_R2) - if (VP8GetCPUInfo(kMIPSdspR2)) { - WebPInitSamplersMIPSdspR2(); - } -#endif // WEBP_USE_MIPS_DSP_R2 - } - yuv_last_cpuinfo_used = VP8GetCPUInfo; -} - -//----------------------------------------------------------------------------- -// ARGB -> YUV converters - -static void ConvertARGBToY(const uint32_t* argb, uint8_t* y, int width) { - int i; - for (i = 0; i < width; ++i) { - const uint32_t p = argb[i]; - y[i] = VP8RGBToY((p >> 16) & 0xff, (p >> 8) & 0xff, (p >> 0) & 0xff, - YUV_HALF); - } -} - -void WebPConvertARGBToUV_C(const uint32_t* argb, uint8_t* u, uint8_t* v, - int src_width, int do_store) { - // No rounding. Last pixel is dealt with separately. - const int uv_width = src_width >> 1; - int i; - for (i = 0; i < uv_width; ++i) { - const uint32_t v0 = argb[2 * i + 0]; - const uint32_t v1 = argb[2 * i + 1]; - // VP8RGBToU/V expects four accumulated pixels. Hence we need to - // scale r/g/b value by a factor 2. We just shift v0/v1 one bit less. - const int r = ((v0 >> 15) & 0x1fe) + ((v1 >> 15) & 0x1fe); - const int g = ((v0 >> 7) & 0x1fe) + ((v1 >> 7) & 0x1fe); - const int b = ((v0 << 1) & 0x1fe) + ((v1 << 1) & 0x1fe); - const int tmp_u = VP8RGBToU(r, g, b, YUV_HALF << 2); - const int tmp_v = VP8RGBToV(r, g, b, YUV_HALF << 2); - if (do_store) { - u[i] = tmp_u; - v[i] = tmp_v; - } else { - // Approximated average-of-four. But it's an acceptable diff. - u[i] = (u[i] + tmp_u + 1) >> 1; - v[i] = (v[i] + tmp_v + 1) >> 1; - } - } - if (src_width & 1) { // last pixel - const uint32_t v0 = argb[2 * i + 0]; - const int r = (v0 >> 14) & 0x3fc; - const int g = (v0 >> 6) & 0x3fc; - const int b = (v0 << 2) & 0x3fc; - const int tmp_u = VP8RGBToU(r, g, b, YUV_HALF << 2); - const int tmp_v = VP8RGBToV(r, g, b, YUV_HALF << 2); - if (do_store) { - u[i] = tmp_u; - v[i] = tmp_v; - } else { - u[i] = (u[i] + tmp_u + 1) >> 1; - v[i] = (v[i] + tmp_v + 1) >> 1; - } - } -} - -//----------------------------------------------------------------------------- - -static void ConvertRGB24ToY(const uint8_t* rgb, uint8_t* y, int width) { - int i; - for (i = 0; i < width; ++i, rgb += 3) { - y[i] = VP8RGBToY(rgb[0], rgb[1], rgb[2], YUV_HALF); - } -} - -static void ConvertBGR24ToY(const uint8_t* bgr, uint8_t* y, int width) { - int i; - for (i = 0; i < width; ++i, bgr += 3) { - y[i] = VP8RGBToY(bgr[2], bgr[1], bgr[0], YUV_HALF); - } -} - -void WebPConvertRGBA32ToUV_C(const uint16_t* rgb, - uint8_t* u, uint8_t* v, int width) { - int i; - for (i = 0; i < width; i += 1, rgb += 4) { - const int r = rgb[0], g = rgb[1], b = rgb[2]; - u[i] = VP8RGBToU(r, g, b, YUV_HALF << 2); - v[i] = VP8RGBToV(r, g, b, YUV_HALF << 2); - } -} - -//----------------------------------------------------------------------------- - -void (*WebPConvertRGB24ToY)(const uint8_t* rgb, uint8_t* y, int width); -void (*WebPConvertBGR24ToY)(const uint8_t* bgr, uint8_t* y, int width); -void (*WebPConvertRGBA32ToUV)(const uint16_t* rgb, - uint8_t* u, uint8_t* v, int width); - -void (*WebPConvertARGBToY)(const uint32_t* argb, uint8_t* y, int width); -void (*WebPConvertARGBToUV)(const uint32_t* argb, uint8_t* u, uint8_t* v, - int src_width, int do_store); - -static volatile VP8CPUInfo rgba_to_yuv_last_cpuinfo_used = - (VP8CPUInfo)&rgba_to_yuv_last_cpuinfo_used; - -extern void WebPInitConvertARGBToYUVSSE2(void); - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitConvertARGBToYUV(void) { - if (rgba_to_yuv_last_cpuinfo_used == VP8GetCPUInfo) return; - - WebPConvertARGBToY = ConvertARGBToY; - WebPConvertARGBToUV = WebPConvertARGBToUV_C; - - WebPConvertRGB24ToY = ConvertRGB24ToY; - WebPConvertBGR24ToY = ConvertBGR24ToY; - - WebPConvertRGBA32ToUV = WebPConvertRGBA32ToUV_C; - - if (VP8GetCPUInfo != NULL) { -#if defined(WEBP_USE_SSE2) - if (VP8GetCPUInfo(kSSE2)) { - WebPInitConvertARGBToYUVSSE2(); - } -#endif // WEBP_USE_SSE2 - } - rgba_to_yuv_last_cpuinfo_used = VP8GetCPUInfo; -} diff --git a/drivers/webp/dsp/yuv.h b/drivers/webp/dsp/yuv.h deleted file mode 100644 index 01c40fcb84..0000000000 --- a/drivers/webp/dsp/yuv.h +++ /dev/null @@ -1,238 +0,0 @@ -// Copyright 2010 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// inline YUV<->RGB conversion function -// -// The exact naming is Y'CbCr, following the ITU-R BT.601 standard. -// More information at: http://en.wikipedia.org/wiki/YCbCr -// Y = 0.2569 * R + 0.5044 * G + 0.0979 * B + 16 -// U = -0.1483 * R - 0.2911 * G + 0.4394 * B + 128 -// V = 0.4394 * R - 0.3679 * G - 0.0715 * B + 128 -// We use 16bit fixed point operations for RGB->YUV conversion (YUV_FIX). -// -// For the Y'CbCr to RGB conversion, the BT.601 specification reads: -// R = 1.164 * (Y-16) + 1.596 * (V-128) -// G = 1.164 * (Y-16) - 0.813 * (V-128) - 0.391 * (U-128) -// B = 1.164 * (Y-16) + 2.018 * (U-128) -// where Y is in the [16,235] range, and U/V in the [16,240] range. -// -// The fixed-point implementation used here is: -// R = (19077 . y + 26149 . v - 14234) >> 6 -// G = (19077 . y - 6419 . u - 13320 . v + 8708) >> 6 -// B = (19077 . y + 33050 . u - 17685) >> 6 -// where the '.' operator is the mulhi_epu16 variant: -// a . b = ((a << 8) * b) >> 16 -// that preserves 8 bits of fractional precision before final descaling. - -// Author: Skal (pascal.massimino@gmail.com) - -#ifndef WEBP_DSP_YUV_H_ -#define WEBP_DSP_YUV_H_ - -#include "./dsp.h" -#include "../dec/decode_vp8.h" - -#if defined(WEBP_EXPERIMENTAL_FEATURES) -// Do NOT activate this feature for real compression. This is only experimental! -// This flag is for comparison purpose against JPEG's "YUVj" natural colorspace. -// This colorspace is close to Rec.601's Y'CbCr model with the notable -// difference of allowing larger range for luma/chroma. -// See http://en.wikipedia.org/wiki/YCbCr#JPEG_conversion paragraph, and its -// difference with http://en.wikipedia.org/wiki/YCbCr#ITU-R_BT.601_conversion -// #define USE_YUVj -#endif - -//------------------------------------------------------------------------------ -// YUV -> RGB conversion - -#ifdef __cplusplus -extern "C" { -#endif - -enum { - YUV_FIX = 16, // fixed-point precision for RGB->YUV - YUV_HALF = 1 << (YUV_FIX - 1), - YUV_MASK = (256 << YUV_FIX) - 1, - YUV_RANGE_MIN = -227, // min value of r/g/b output - YUV_RANGE_MAX = 256 + 226, // max value of r/g/b output - - YUV_FIX2 = 6, // fixed-point precision for YUV->RGB - YUV_HALF2 = 1 << YUV_FIX2 >> 1, - YUV_MASK2 = (256 << YUV_FIX2) - 1 -}; - -//------------------------------------------------------------------------------ -// slower on x86 by ~7-8%, but bit-exact with the SSE2/NEON version - -static WEBP_INLINE int MultHi(int v, int coeff) { // _mm_mulhi_epu16 emulation - return (v * coeff) >> 8; -} - -static WEBP_INLINE int VP8Clip8(int v) { - return ((v & ~YUV_MASK2) == 0) ? (v >> YUV_FIX2) : (v < 0) ? 0 : 255; -} - -static WEBP_INLINE int VP8YUVToR(int y, int v) { - return VP8Clip8(MultHi(y, 19077) + MultHi(v, 26149) - 14234); -} - -static WEBP_INLINE int VP8YUVToG(int y, int u, int v) { - return VP8Clip8(MultHi(y, 19077) - MultHi(u, 6419) - MultHi(v, 13320) + 8708); -} - -static WEBP_INLINE int VP8YUVToB(int y, int u) { - return VP8Clip8(MultHi(y, 19077) + MultHi(u, 33050) - 17685); -} - -static WEBP_INLINE void VP8YuvToRgb(int y, int u, int v, - uint8_t* const rgb) { - rgb[0] = VP8YUVToR(y, v); - rgb[1] = VP8YUVToG(y, u, v); - rgb[2] = VP8YUVToB(y, u); -} - -static WEBP_INLINE void VP8YuvToBgr(int y, int u, int v, - uint8_t* const bgr) { - bgr[0] = VP8YUVToB(y, u); - bgr[1] = VP8YUVToG(y, u, v); - bgr[2] = VP8YUVToR(y, v); -} - -static WEBP_INLINE void VP8YuvToRgb565(int y, int u, int v, - uint8_t* const rgb) { - const int r = VP8YUVToR(y, v); // 5 usable bits - const int g = VP8YUVToG(y, u, v); // 6 usable bits - const int b = VP8YUVToB(y, u); // 5 usable bits - const int rg = (r & 0xf8) | (g >> 5); - const int gb = ((g << 3) & 0xe0) | (b >> 3); -#ifdef WEBP_SWAP_16BIT_CSP - rgb[0] = gb; - rgb[1] = rg; -#else - rgb[0] = rg; - rgb[1] = gb; -#endif -} - -static WEBP_INLINE void VP8YuvToRgba4444(int y, int u, int v, - uint8_t* const argb) { - const int r = VP8YUVToR(y, v); // 4 usable bits - const int g = VP8YUVToG(y, u, v); // 4 usable bits - const int b = VP8YUVToB(y, u); // 4 usable bits - const int rg = (r & 0xf0) | (g >> 4); - const int ba = (b & 0xf0) | 0x0f; // overwrite the lower 4 bits -#ifdef WEBP_SWAP_16BIT_CSP - argb[0] = ba; - argb[1] = rg; -#else - argb[0] = rg; - argb[1] = ba; -#endif -} - -//----------------------------------------------------------------------------- -// Alpha handling variants - -static WEBP_INLINE void VP8YuvToArgb(uint8_t y, uint8_t u, uint8_t v, - uint8_t* const argb) { - argb[0] = 0xff; - VP8YuvToRgb(y, u, v, argb + 1); -} - -static WEBP_INLINE void VP8YuvToBgra(uint8_t y, uint8_t u, uint8_t v, - uint8_t* const bgra) { - VP8YuvToBgr(y, u, v, bgra); - bgra[3] = 0xff; -} - -static WEBP_INLINE void VP8YuvToRgba(uint8_t y, uint8_t u, uint8_t v, - uint8_t* const rgba) { - VP8YuvToRgb(y, u, v, rgba); - rgba[3] = 0xff; -} - -// Must be called before everything, to initialize the tables. -void VP8YUVInit(void); - -//----------------------------------------------------------------------------- -// SSE2 extra functions (mostly for upsampling_sse2.c) - -#if defined(WEBP_USE_SSE2) - -// Process 32 pixels and store the result (16b, 24b or 32b per pixel) in *dst. -void VP8YuvToRgba32(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst); -void VP8YuvToRgb32(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst); -void VP8YuvToBgra32(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst); -void VP8YuvToBgr32(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst); -void VP8YuvToArgb32(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst); -void VP8YuvToRgba444432(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst); -void VP8YuvToRgb56532(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst); - -#endif // WEBP_USE_SSE2 - -//------------------------------------------------------------------------------ -// RGB -> YUV conversion - -// Stub functions that can be called with various rounding values: -static WEBP_INLINE int VP8ClipUV(int uv, int rounding) { - uv = (uv + rounding + (128 << (YUV_FIX + 2))) >> (YUV_FIX + 2); - return ((uv & ~0xff) == 0) ? uv : (uv < 0) ? 0 : 255; -} - -#ifndef USE_YUVj - -static WEBP_INLINE int VP8RGBToY(int r, int g, int b, int rounding) { - const int luma = 16839 * r + 33059 * g + 6420 * b; - return (luma + rounding + (16 << YUV_FIX)) >> YUV_FIX; // no need to clip -} - -static WEBP_INLINE int VP8RGBToU(int r, int g, int b, int rounding) { - const int u = -9719 * r - 19081 * g + 28800 * b; - return VP8ClipUV(u, rounding); -} - -static WEBP_INLINE int VP8RGBToV(int r, int g, int b, int rounding) { - const int v = +28800 * r - 24116 * g - 4684 * b; - return VP8ClipUV(v, rounding); -} - -#else - -// This JPEG-YUV colorspace, only for comparison! -// These are also 16bit precision coefficients from Rec.601, but with full -// [0..255] output range. -static WEBP_INLINE int VP8RGBToY(int r, int g, int b, int rounding) { - const int luma = 19595 * r + 38470 * g + 7471 * b; - return (luma + rounding) >> YUV_FIX; // no need to clip -} - -static WEBP_INLINE int VP8RGBToU(int r, int g, int b, int rounding) { - const int u = -11058 * r - 21710 * g + 32768 * b; - return VP8ClipUV(u, rounding); -} - -static WEBP_INLINE int VP8RGBToV(int r, int g, int b, int rounding) { - const int v = 32768 * r - 27439 * g - 5329 * b; - return VP8ClipUV(v, rounding); -} - -#endif // USE_YUVj - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_DSP_YUV_H_ */ diff --git a/drivers/webp/dsp/yuv_mips32.c b/drivers/webp/dsp/yuv_mips32.c deleted file mode 100644 index e61aac571f..0000000000 --- a/drivers/webp/dsp/yuv_mips32.c +++ /dev/null @@ -1,103 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// MIPS version of YUV to RGB upsampling functions. -// -// Author(s): Djordje Pesut (djordje.pesut@imgtec.com) -// Jovan Zelincevic (jovan.zelincevic@imgtec.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_MIPS32) - -#include "./yuv.h" - -//------------------------------------------------------------------------------ -// simple point-sampling - -#define ROW_FUNC(FUNC_NAME, XSTEP, R, G, B, A) \ -static void FUNC_NAME(const uint8_t* y, \ - const uint8_t* u, const uint8_t* v, \ - uint8_t* dst, int len) { \ - int i, r, g, b; \ - int temp0, temp1, temp2, temp3, temp4; \ - for (i = 0; i < (len >> 1); i++) { \ - temp1 = MultHi(v[0], 26149); \ - temp3 = MultHi(v[0], 13320); \ - temp2 = MultHi(u[0], 6419); \ - temp4 = MultHi(u[0], 33050); \ - temp0 = MultHi(y[0], 19077); \ - temp1 -= 14234; \ - temp3 -= 8708; \ - temp2 += temp3; \ - temp4 -= 17685; \ - r = VP8Clip8(temp0 + temp1); \ - g = VP8Clip8(temp0 - temp2); \ - b = VP8Clip8(temp0 + temp4); \ - temp0 = MultHi(y[1], 19077); \ - dst[R] = r; \ - dst[G] = g; \ - dst[B] = b; \ - if (A) dst[A] = 0xff; \ - r = VP8Clip8(temp0 + temp1); \ - g = VP8Clip8(temp0 - temp2); \ - b = VP8Clip8(temp0 + temp4); \ - dst[R + XSTEP] = r; \ - dst[G + XSTEP] = g; \ - dst[B + XSTEP] = b; \ - if (A) dst[A + XSTEP] = 0xff; \ - y += 2; \ - ++u; \ - ++v; \ - dst += 2 * XSTEP; \ - } \ - if (len & 1) { \ - temp1 = MultHi(v[0], 26149); \ - temp3 = MultHi(v[0], 13320); \ - temp2 = MultHi(u[0], 6419); \ - temp4 = MultHi(u[0], 33050); \ - temp0 = MultHi(y[0], 19077); \ - temp1 -= 14234; \ - temp3 -= 8708; \ - temp2 += temp3; \ - temp4 -= 17685; \ - r = VP8Clip8(temp0 + temp1); \ - g = VP8Clip8(temp0 - temp2); \ - b = VP8Clip8(temp0 + temp4); \ - dst[R] = r; \ - dst[G] = g; \ - dst[B] = b; \ - if (A) dst[A] = 0xff; \ - } \ -} - -ROW_FUNC(YuvToRgbRow, 3, 0, 1, 2, 0) -ROW_FUNC(YuvToRgbaRow, 4, 0, 1, 2, 3) -ROW_FUNC(YuvToBgrRow, 3, 2, 1, 0, 0) -ROW_FUNC(YuvToBgraRow, 4, 2, 1, 0, 3) - -#undef ROW_FUNC - -//------------------------------------------------------------------------------ -// Entry point - -extern void WebPInitSamplersMIPS32(void); - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitSamplersMIPS32(void) { - WebPSamplers[MODE_RGB] = YuvToRgbRow; - WebPSamplers[MODE_RGBA] = YuvToRgbaRow; - WebPSamplers[MODE_BGR] = YuvToBgrRow; - WebPSamplers[MODE_BGRA] = YuvToBgraRow; -} - -#else // !WEBP_USE_MIPS32 - -WEBP_DSP_INIT_STUB(WebPInitSamplersMIPS32) - -#endif // WEBP_USE_MIPS32 diff --git a/drivers/webp/dsp/yuv_mips_dsp_r2.c b/drivers/webp/dsp/yuv_mips_dsp_r2.c deleted file mode 100644 index 1720d4190f..0000000000 --- a/drivers/webp/dsp/yuv_mips_dsp_r2.c +++ /dev/null @@ -1,134 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// MIPS DSPr2 version of YUV to RGB upsampling functions. -// -// Author(s): Branimir Vasic (branimir.vasic@imgtec.com) -// Djordje Pesut (djordje.pesut@imgtec.com) - -#include "./dsp.h" - -#if defined(WEBP_USE_MIPS_DSP_R2) - -#include "./yuv.h" - -//------------------------------------------------------------------------------ -// simple point-sampling - -#define ROW_FUNC_PART_1() \ - "lbu %[temp3], 0(%[v]) \n\t" \ - "lbu %[temp4], 0(%[u]) \n\t" \ - "lbu %[temp0], 0(%[y]) \n\t" \ - "mul %[temp1], %[t_con_1], %[temp3] \n\t" \ - "mul %[temp3], %[t_con_2], %[temp3] \n\t" \ - "mul %[temp2], %[t_con_3], %[temp4] \n\t" \ - "mul %[temp4], %[t_con_4], %[temp4] \n\t" \ - "mul %[temp0], %[t_con_5], %[temp0] \n\t" \ - "subu %[temp1], %[temp1], %[t_con_6] \n\t" \ - "subu %[temp3], %[temp3], %[t_con_7] \n\t" \ - "addu %[temp2], %[temp2], %[temp3] \n\t" \ - "subu %[temp4], %[temp4], %[t_con_8] \n\t" \ - -#define ROW_FUNC_PART_2(R, G, B, K) \ - "addu %[temp5], %[temp0], %[temp1] \n\t" \ - "subu %[temp6], %[temp0], %[temp2] \n\t" \ - "addu %[temp7], %[temp0], %[temp4] \n\t" \ -".if " #K " \n\t" \ - "lbu %[temp0], 1(%[y]) \n\t" \ -".endif \n\t" \ - "shll_s.w %[temp5], %[temp5], 17 \n\t" \ - "shll_s.w %[temp6], %[temp6], 17 \n\t" \ -".if " #K " \n\t" \ - "mul %[temp0], %[t_con_5], %[temp0] \n\t" \ -".endif \n\t" \ - "shll_s.w %[temp7], %[temp7], 17 \n\t" \ - "precrqu_s.qb.ph %[temp5], %[temp5], $zero \n\t" \ - "precrqu_s.qb.ph %[temp6], %[temp6], $zero \n\t" \ - "precrqu_s.qb.ph %[temp7], %[temp7], $zero \n\t" \ - "srl %[temp5], %[temp5], 24 \n\t" \ - "srl %[temp6], %[temp6], 24 \n\t" \ - "srl %[temp7], %[temp7], 24 \n\t" \ - "sb %[temp5], " #R "(%[dst]) \n\t" \ - "sb %[temp6], " #G "(%[dst]) \n\t" \ - "sb %[temp7], " #B "(%[dst]) \n\t" \ - -#define ASM_CLOBBER_LIST() \ - : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), \ - [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), \ - [temp6]"=&r"(temp6), [temp7]"=&r"(temp7) \ - : [t_con_1]"r"(t_con_1), [t_con_2]"r"(t_con_2), [t_con_3]"r"(t_con_3), \ - [t_con_4]"r"(t_con_4), [t_con_5]"r"(t_con_5), [t_con_6]"r"(t_con_6), \ - [u]"r"(u), [v]"r"(v), [y]"r"(y), [dst]"r"(dst), \ - [t_con_7]"r"(t_con_7), [t_con_8]"r"(t_con_8) \ - : "memory", "hi", "lo" \ - -#define ROW_FUNC(FUNC_NAME, XSTEP, R, G, B, A) \ -static void FUNC_NAME(const uint8_t* y, \ - const uint8_t* u, const uint8_t* v, \ - uint8_t* dst, int len) { \ - int i; \ - uint32_t temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7; \ - const int t_con_1 = 26149; \ - const int t_con_2 = 13320; \ - const int t_con_3 = 6419; \ - const int t_con_4 = 33050; \ - const int t_con_5 = 19077; \ - const int t_con_6 = 14234; \ - const int t_con_7 = 8708; \ - const int t_con_8 = 17685; \ - for (i = 0; i < (len >> 1); i++) { \ - __asm__ volatile ( \ - ROW_FUNC_PART_1() \ - ROW_FUNC_PART_2(R, G, B, 1) \ - ROW_FUNC_PART_2(R + XSTEP, G + XSTEP, B + XSTEP, 0) \ - ASM_CLOBBER_LIST() \ - ); \ - if (A) dst[A] = dst[A + XSTEP] = 0xff; \ - y += 2; \ - ++u; \ - ++v; \ - dst += 2 * XSTEP; \ - } \ - if (len & 1) { \ - __asm__ volatile ( \ - ROW_FUNC_PART_1() \ - ROW_FUNC_PART_2(R, G, B, 0) \ - ASM_CLOBBER_LIST() \ - ); \ - if (A) dst[A] = 0xff; \ - } \ -} - -ROW_FUNC(YuvToRgbRow, 3, 0, 1, 2, 0) -ROW_FUNC(YuvToRgbaRow, 4, 0, 1, 2, 3) -ROW_FUNC(YuvToBgrRow, 3, 2, 1, 0, 0) -ROW_FUNC(YuvToBgraRow, 4, 2, 1, 0, 3) - -#undef ROW_FUNC -#undef ASM_CLOBBER_LIST -#undef ROW_FUNC_PART_2 -#undef ROW_FUNC_PART_1 - -//------------------------------------------------------------------------------ -// Entry point - -extern void WebPInitSamplersMIPSdspR2(void); - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitSamplersMIPSdspR2(void) { - WebPSamplers[MODE_RGB] = YuvToRgbRow; - WebPSamplers[MODE_RGBA] = YuvToRgbaRow; - WebPSamplers[MODE_BGR] = YuvToBgrRow; - WebPSamplers[MODE_BGRA] = YuvToBgraRow; -} - -#else // !WEBP_USE_MIPS_DSP_R2 - -WEBP_DSP_INIT_STUB(WebPInitSamplersMIPSdspR2) - -#endif // WEBP_USE_MIPS_DSP_R2 diff --git a/drivers/webp/dsp/yuv_sse2.c b/drivers/webp/dsp/yuv_sse2.c deleted file mode 100644 index e19bddff6c..0000000000 --- a/drivers/webp/dsp/yuv_sse2.c +++ /dev/null @@ -1,775 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// YUV->RGB conversion functions -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./yuv.h" - -#if defined(WEBP_USE_SSE2) - -#include <emmintrin.h> - -//----------------------------------------------------------------------------- -// Convert spans of 32 pixels to various RGB formats for the fancy upsampler. - -// These constants are 14b fixed-point version of ITU-R BT.601 constants. -// R = (19077 * y + 26149 * v - 14234) >> 6 -// G = (19077 * y - 6419 * u - 13320 * v + 8708) >> 6 -// B = (19077 * y + 33050 * u - 17685) >> 6 -static void ConvertYUV444ToRGB(const __m128i* const Y0, - const __m128i* const U0, - const __m128i* const V0, - __m128i* const R, - __m128i* const G, - __m128i* const B) { - const __m128i k19077 = _mm_set1_epi16(19077); - const __m128i k26149 = _mm_set1_epi16(26149); - const __m128i k14234 = _mm_set1_epi16(14234); - // 33050 doesn't fit in a signed short: only use this with unsigned arithmetic - const __m128i k33050 = _mm_set1_epi16((short)33050); - const __m128i k17685 = _mm_set1_epi16(17685); - const __m128i k6419 = _mm_set1_epi16(6419); - const __m128i k13320 = _mm_set1_epi16(13320); - const __m128i k8708 = _mm_set1_epi16(8708); - - const __m128i Y1 = _mm_mulhi_epu16(*Y0, k19077); - - const __m128i R0 = _mm_mulhi_epu16(*V0, k26149); - const __m128i R1 = _mm_sub_epi16(Y1, k14234); - const __m128i R2 = _mm_add_epi16(R1, R0); - - const __m128i G0 = _mm_mulhi_epu16(*U0, k6419); - const __m128i G1 = _mm_mulhi_epu16(*V0, k13320); - const __m128i G2 = _mm_add_epi16(Y1, k8708); - const __m128i G3 = _mm_add_epi16(G0, G1); - const __m128i G4 = _mm_sub_epi16(G2, G3); - - // be careful with the saturated *unsigned* arithmetic here! - const __m128i B0 = _mm_mulhi_epu16(*U0, k33050); - const __m128i B1 = _mm_adds_epu16(B0, Y1); - const __m128i B2 = _mm_subs_epu16(B1, k17685); - - // use logical shift for B2, which can be larger than 32767 - *R = _mm_srai_epi16(R2, 6); // range: [-14234, 30815] - *G = _mm_srai_epi16(G4, 6); // range: [-10953, 27710] - *B = _mm_srli_epi16(B2, 6); // range: [0, 34238] -} - -// Load the bytes into the *upper* part of 16b words. That's "<< 8", basically. -static WEBP_INLINE __m128i Load_HI_16(const uint8_t* src) { - const __m128i zero = _mm_setzero_si128(); - return _mm_unpacklo_epi8(zero, _mm_loadl_epi64((const __m128i*)src)); -} - -// Load and replicate the U/V samples -static WEBP_INLINE __m128i Load_UV_HI_8(const uint8_t* src) { - const __m128i zero = _mm_setzero_si128(); - const __m128i tmp0 = _mm_cvtsi32_si128(*(const uint32_t*)src); - const __m128i tmp1 = _mm_unpacklo_epi8(zero, tmp0); - return _mm_unpacklo_epi16(tmp1, tmp1); // replicate samples -} - -// Convert 32 samples of YUV444 to R/G/B -static void YUV444ToRGB(const uint8_t* const y, - const uint8_t* const u, - const uint8_t* const v, - __m128i* const R, __m128i* const G, __m128i* const B) { - const __m128i Y0 = Load_HI_16(y), U0 = Load_HI_16(u), V0 = Load_HI_16(v); - ConvertYUV444ToRGB(&Y0, &U0, &V0, R, G, B); -} - -// Convert 32 samples of YUV420 to R/G/B -static void YUV420ToRGB(const uint8_t* const y, - const uint8_t* const u, - const uint8_t* const v, - __m128i* const R, __m128i* const G, __m128i* const B) { - const __m128i Y0 = Load_HI_16(y), U0 = Load_UV_HI_8(u), V0 = Load_UV_HI_8(v); - ConvertYUV444ToRGB(&Y0, &U0, &V0, R, G, B); -} - -// Pack R/G/B/A results into 32b output. -static WEBP_INLINE void PackAndStore4(const __m128i* const R, - const __m128i* const G, - const __m128i* const B, - const __m128i* const A, - uint8_t* const dst) { - const __m128i rb = _mm_packus_epi16(*R, *B); - const __m128i ga = _mm_packus_epi16(*G, *A); - const __m128i rg = _mm_unpacklo_epi8(rb, ga); - const __m128i ba = _mm_unpackhi_epi8(rb, ga); - const __m128i RGBA_lo = _mm_unpacklo_epi16(rg, ba); - const __m128i RGBA_hi = _mm_unpackhi_epi16(rg, ba); - _mm_storeu_si128((__m128i*)(dst + 0), RGBA_lo); - _mm_storeu_si128((__m128i*)(dst + 16), RGBA_hi); -} - -// Pack R/G/B/A results into 16b output. -static WEBP_INLINE void PackAndStore4444(const __m128i* const R, - const __m128i* const G, - const __m128i* const B, - const __m128i* const A, - uint8_t* const dst) { -#if !defined(WEBP_SWAP_16BIT_CSP) - const __m128i rg0 = _mm_packus_epi16(*R, *G); - const __m128i ba0 = _mm_packus_epi16(*B, *A); -#else - const __m128i rg0 = _mm_packus_epi16(*B, *A); - const __m128i ba0 = _mm_packus_epi16(*R, *G); -#endif - const __m128i mask_0xf0 = _mm_set1_epi8(0xf0); - const __m128i rb1 = _mm_unpacklo_epi8(rg0, ba0); // rbrbrbrbrb... - const __m128i ga1 = _mm_unpackhi_epi8(rg0, ba0); // gagagagaga... - const __m128i rb2 = _mm_and_si128(rb1, mask_0xf0); - const __m128i ga2 = _mm_srli_epi16(_mm_and_si128(ga1, mask_0xf0), 4); - const __m128i rgba4444 = _mm_or_si128(rb2, ga2); - _mm_storeu_si128((__m128i*)dst, rgba4444); -} - -// Pack R/G/B results into 16b output. -static WEBP_INLINE void PackAndStore565(const __m128i* const R, - const __m128i* const G, - const __m128i* const B, - uint8_t* const dst) { - const __m128i r0 = _mm_packus_epi16(*R, *R); - const __m128i g0 = _mm_packus_epi16(*G, *G); - const __m128i b0 = _mm_packus_epi16(*B, *B); - const __m128i r1 = _mm_and_si128(r0, _mm_set1_epi8(0xf8)); - const __m128i b1 = _mm_and_si128(_mm_srli_epi16(b0, 3), _mm_set1_epi8(0x1f)); - const __m128i g1 = _mm_srli_epi16(_mm_and_si128(g0, _mm_set1_epi8(0xe0)), 5); - const __m128i g2 = _mm_slli_epi16(_mm_and_si128(g0, _mm_set1_epi8(0x1c)), 3); - const __m128i rg = _mm_or_si128(r1, g1); - const __m128i gb = _mm_or_si128(g2, b1); -#if !defined(WEBP_SWAP_16BIT_CSP) - const __m128i rgb565 = _mm_unpacklo_epi8(rg, gb); -#else - const __m128i rgb565 = _mm_unpacklo_epi8(gb, rg); -#endif - _mm_storeu_si128((__m128i*)dst, rgb565); -} - -// Function used several times in PlanarTo24b. -// It samples the in buffer as follows: one every two unsigned char is stored -// at the beginning of the buffer, while the other half is stored at the end. -static WEBP_INLINE void PlanarTo24bHelper(const __m128i* const in /*in[6]*/, - __m128i* const out /*out[6]*/) { - const __m128i v_mask = _mm_set1_epi16(0x00ff); - - // Take one every two upper 8b values. - out[0] = _mm_packus_epi16(_mm_and_si128(in[0], v_mask), - _mm_and_si128(in[1], v_mask)); - out[1] = _mm_packus_epi16(_mm_and_si128(in[2], v_mask), - _mm_and_si128(in[3], v_mask)); - out[2] = _mm_packus_epi16(_mm_and_si128(in[4], v_mask), - _mm_and_si128(in[5], v_mask)); - // Take one every two lower 8b values. - out[3] = _mm_packus_epi16(_mm_srli_epi16(in[0], 8), _mm_srli_epi16(in[1], 8)); - out[4] = _mm_packus_epi16(_mm_srli_epi16(in[2], 8), _mm_srli_epi16(in[3], 8)); - out[5] = _mm_packus_epi16(_mm_srli_epi16(in[4], 8), _mm_srli_epi16(in[5], 8)); -} - -// Pack the planar buffers -// rrrr... rrrr... gggg... gggg... bbbb... bbbb.... -// triplet by triplet in the output buffer rgb as rgbrgbrgbrgb ... -static WEBP_INLINE void PlanarTo24b(__m128i* const in /*in[6]*/, uint8_t* rgb) { - // The input is 6 registers of sixteen 8b but for the sake of explanation, - // let's take 6 registers of four 8b values. - // To pack, we will keep taking one every two 8b integer and move it - // around as follows: - // Input: - // r0r1r2r3 | r4r5r6r7 | g0g1g2g3 | g4g5g6g7 | b0b1b2b3 | b4b5b6b7 - // Split the 6 registers in two sets of 3 registers: the first set as the even - // 8b bytes, the second the odd ones: - // r0r2r4r6 | g0g2g4g6 | b0b2b4b6 | r1r3r5r7 | g1g3g5g7 | b1b3b5b7 - // Repeat the same permutations twice more: - // r0r4g0g4 | b0b4r1r5 | g1g5b1b5 | r2r6g2g6 | b2b6r3r7 | g3g7b3b7 - // r0g0b0r1 | g1b1r2g2 | b2r3g3b3 | r4g4b4r5 | g5b5r6g6 | b6r7g7b7 - __m128i tmp[6]; - PlanarTo24bHelper(in, tmp); - PlanarTo24bHelper(tmp, in); - PlanarTo24bHelper(in, tmp); - // We need to do it two more times than the example as we have sixteen bytes. - PlanarTo24bHelper(tmp, in); - PlanarTo24bHelper(in, tmp); - - _mm_storeu_si128((__m128i*)(rgb + 0), tmp[0]); - _mm_storeu_si128((__m128i*)(rgb + 16), tmp[1]); - _mm_storeu_si128((__m128i*)(rgb + 32), tmp[2]); - _mm_storeu_si128((__m128i*)(rgb + 48), tmp[3]); - _mm_storeu_si128((__m128i*)(rgb + 64), tmp[4]); - _mm_storeu_si128((__m128i*)(rgb + 80), tmp[5]); -} -#undef MK_UINT32 - -void VP8YuvToRgba32(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst) { - const __m128i kAlpha = _mm_set1_epi16(255); - int n; - for (n = 0; n < 32; n += 8, dst += 32) { - __m128i R, G, B; - YUV444ToRGB(y + n, u + n, v + n, &R, &G, &B); - PackAndStore4(&R, &G, &B, &kAlpha, dst); - } -} - -void VP8YuvToBgra32(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst) { - const __m128i kAlpha = _mm_set1_epi16(255); - int n; - for (n = 0; n < 32; n += 8, dst += 32) { - __m128i R, G, B; - YUV444ToRGB(y + n, u + n, v + n, &R, &G, &B); - PackAndStore4(&B, &G, &R, &kAlpha, dst); - } -} - -void VP8YuvToArgb32(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst) { - const __m128i kAlpha = _mm_set1_epi16(255); - int n; - for (n = 0; n < 32; n += 8, dst += 32) { - __m128i R, G, B; - YUV444ToRGB(y + n, u + n, v + n, &R, &G, &B); - PackAndStore4(&kAlpha, &R, &G, &B, dst); - } -} - -void VP8YuvToRgba444432(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst) { - const __m128i kAlpha = _mm_set1_epi16(255); - int n; - for (n = 0; n < 32; n += 8, dst += 16) { - __m128i R, G, B; - YUV444ToRGB(y + n, u + n, v + n, &R, &G, &B); - PackAndStore4444(&R, &G, &B, &kAlpha, dst); - } -} - -void VP8YuvToRgb56532(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst) { - int n; - for (n = 0; n < 32; n += 8, dst += 16) { - __m128i R, G, B; - YUV444ToRGB(y + n, u + n, v + n, &R, &G, &B); - PackAndStore565(&R, &G, &B, dst); - } -} - -void VP8YuvToRgb32(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst) { - __m128i R0, R1, R2, R3, G0, G1, G2, G3, B0, B1, B2, B3; - __m128i rgb[6]; - - YUV444ToRGB(y + 0, u + 0, v + 0, &R0, &G0, &B0); - YUV444ToRGB(y + 8, u + 8, v + 8, &R1, &G1, &B1); - YUV444ToRGB(y + 16, u + 16, v + 16, &R2, &G2, &B2); - YUV444ToRGB(y + 24, u + 24, v + 24, &R3, &G3, &B3); - - // Cast to 8b and store as RRRRGGGGBBBB. - rgb[0] = _mm_packus_epi16(R0, R1); - rgb[1] = _mm_packus_epi16(R2, R3); - rgb[2] = _mm_packus_epi16(G0, G1); - rgb[3] = _mm_packus_epi16(G2, G3); - rgb[4] = _mm_packus_epi16(B0, B1); - rgb[5] = _mm_packus_epi16(B2, B3); - - // Pack as RGBRGBRGBRGB. - PlanarTo24b(rgb, dst); -} - -void VP8YuvToBgr32(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst) { - __m128i R0, R1, R2, R3, G0, G1, G2, G3, B0, B1, B2, B3; - __m128i bgr[6]; - - YUV444ToRGB(y + 0, u + 0, v + 0, &R0, &G0, &B0); - YUV444ToRGB(y + 8, u + 8, v + 8, &R1, &G1, &B1); - YUV444ToRGB(y + 16, u + 16, v + 16, &R2, &G2, &B2); - YUV444ToRGB(y + 24, u + 24, v + 24, &R3, &G3, &B3); - - // Cast to 8b and store as BBBBGGGGRRRR. - bgr[0] = _mm_packus_epi16(B0, B1); - bgr[1] = _mm_packus_epi16(B2, B3); - bgr[2] = _mm_packus_epi16(G0, G1); - bgr[3] = _mm_packus_epi16(G2, G3); - bgr[4] = _mm_packus_epi16(R0, R1); - bgr[5] = _mm_packus_epi16(R2, R3); - - // Pack as BGRBGRBGRBGR. - PlanarTo24b(bgr, dst); -} - -//----------------------------------------------------------------------------- -// Arbitrary-length row conversion functions - -static void YuvToRgbaRow(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst, int len) { - const __m128i kAlpha = _mm_set1_epi16(255); - int n; - for (n = 0; n + 8 <= len; n += 8, dst += 32) { - __m128i R, G, B; - YUV420ToRGB(y, u, v, &R, &G, &B); - PackAndStore4(&R, &G, &B, &kAlpha, dst); - y += 8; - u += 4; - v += 4; - } - for (; n < len; ++n) { // Finish off - VP8YuvToRgba(y[0], u[0], v[0], dst); - dst += 4; - y += 1; - u += (n & 1); - v += (n & 1); - } -} - -static void YuvToBgraRow(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst, int len) { - const __m128i kAlpha = _mm_set1_epi16(255); - int n; - for (n = 0; n + 8 <= len; n += 8, dst += 32) { - __m128i R, G, B; - YUV420ToRGB(y, u, v, &R, &G, &B); - PackAndStore4(&B, &G, &R, &kAlpha, dst); - y += 8; - u += 4; - v += 4; - } - for (; n < len; ++n) { // Finish off - VP8YuvToBgra(y[0], u[0], v[0], dst); - dst += 4; - y += 1; - u += (n & 1); - v += (n & 1); - } -} - -static void YuvToArgbRow(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst, int len) { - const __m128i kAlpha = _mm_set1_epi16(255); - int n; - for (n = 0; n + 8 <= len; n += 8, dst += 32) { - __m128i R, G, B; - YUV420ToRGB(y, u, v, &R, &G, &B); - PackAndStore4(&kAlpha, &R, &G, &B, dst); - y += 8; - u += 4; - v += 4; - } - for (; n < len; ++n) { // Finish off - VP8YuvToArgb(y[0], u[0], v[0], dst); - dst += 4; - y += 1; - u += (n & 1); - v += (n & 1); - } -} - -static void YuvToRgbRow(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst, int len) { - int n; - for (n = 0; n + 32 <= len; n += 32, dst += 32 * 3) { - __m128i R0, R1, R2, R3, G0, G1, G2, G3, B0, B1, B2, B3; - __m128i rgb[6]; - - YUV420ToRGB(y + 0, u + 0, v + 0, &R0, &G0, &B0); - YUV420ToRGB(y + 8, u + 4, v + 4, &R1, &G1, &B1); - YUV420ToRGB(y + 16, u + 8, v + 8, &R2, &G2, &B2); - YUV420ToRGB(y + 24, u + 12, v + 12, &R3, &G3, &B3); - - // Cast to 8b and store as RRRRGGGGBBBB. - rgb[0] = _mm_packus_epi16(R0, R1); - rgb[1] = _mm_packus_epi16(R2, R3); - rgb[2] = _mm_packus_epi16(G0, G1); - rgb[3] = _mm_packus_epi16(G2, G3); - rgb[4] = _mm_packus_epi16(B0, B1); - rgb[5] = _mm_packus_epi16(B2, B3); - - // Pack as RGBRGBRGBRGB. - PlanarTo24b(rgb, dst); - - y += 32; - u += 16; - v += 16; - } - for (; n < len; ++n) { // Finish off - VP8YuvToRgb(y[0], u[0], v[0], dst); - dst += 3; - y += 1; - u += (n & 1); - v += (n & 1); - } -} - -static void YuvToBgrRow(const uint8_t* y, const uint8_t* u, const uint8_t* v, - uint8_t* dst, int len) { - int n; - for (n = 0; n + 32 <= len; n += 32, dst += 32 * 3) { - __m128i R0, R1, R2, R3, G0, G1, G2, G3, B0, B1, B2, B3; - __m128i bgr[6]; - - YUV420ToRGB(y + 0, u + 0, v + 0, &R0, &G0, &B0); - YUV420ToRGB(y + 8, u + 4, v + 4, &R1, &G1, &B1); - YUV420ToRGB(y + 16, u + 8, v + 8, &R2, &G2, &B2); - YUV420ToRGB(y + 24, u + 12, v + 12, &R3, &G3, &B3); - - // Cast to 8b and store as BBBBGGGGRRRR. - bgr[0] = _mm_packus_epi16(B0, B1); - bgr[1] = _mm_packus_epi16(B2, B3); - bgr[2] = _mm_packus_epi16(G0, G1); - bgr[3] = _mm_packus_epi16(G2, G3); - bgr[4] = _mm_packus_epi16(R0, R1); - bgr[5] = _mm_packus_epi16(R2, R3); - - // Pack as BGRBGRBGRBGR. - PlanarTo24b(bgr, dst); - - y += 32; - u += 16; - v += 16; - } - for (; n < len; ++n) { // Finish off - VP8YuvToBgr(y[0], u[0], v[0], dst); - dst += 3; - y += 1; - u += (n & 1); - v += (n & 1); - } -} - -//------------------------------------------------------------------------------ -// Entry point - -extern void WebPInitSamplersSSE2(void); - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitSamplersSSE2(void) { - WebPSamplers[MODE_RGB] = YuvToRgbRow; - WebPSamplers[MODE_RGBA] = YuvToRgbaRow; - WebPSamplers[MODE_BGR] = YuvToBgrRow; - WebPSamplers[MODE_BGRA] = YuvToBgraRow; - WebPSamplers[MODE_ARGB] = YuvToArgbRow; -} - -//------------------------------------------------------------------------------ -// RGB24/32 -> YUV converters - -// Load eight 16b-words from *src. -#define LOAD_16(src) _mm_loadu_si128((const __m128i*)(src)) -// Store either 16b-words into *dst -#define STORE_16(V, dst) _mm_storeu_si128((__m128i*)(dst), (V)) - -// Function that inserts a value of the second half of the in buffer in between -// every two char of the first half. -static WEBP_INLINE void RGB24PackedToPlanarHelper( - const __m128i* const in /*in[6]*/, __m128i* const out /*out[6]*/) { - out[0] = _mm_unpacklo_epi8(in[0], in[3]); - out[1] = _mm_unpackhi_epi8(in[0], in[3]); - out[2] = _mm_unpacklo_epi8(in[1], in[4]); - out[3] = _mm_unpackhi_epi8(in[1], in[4]); - out[4] = _mm_unpacklo_epi8(in[2], in[5]); - out[5] = _mm_unpackhi_epi8(in[2], in[5]); -} - -// Unpack the 8b input rgbrgbrgbrgb ... as contiguous registers: -// rrrr... rrrr... gggg... gggg... bbbb... bbbb.... -// Similar to PlanarTo24bHelper(), but in reverse order. -static WEBP_INLINE void RGB24PackedToPlanar(const uint8_t* const rgb, - __m128i* const out /*out[6]*/) { - __m128i tmp[6]; - tmp[0] = _mm_loadu_si128((const __m128i*)(rgb + 0)); - tmp[1] = _mm_loadu_si128((const __m128i*)(rgb + 16)); - tmp[2] = _mm_loadu_si128((const __m128i*)(rgb + 32)); - tmp[3] = _mm_loadu_si128((const __m128i*)(rgb + 48)); - tmp[4] = _mm_loadu_si128((const __m128i*)(rgb + 64)); - tmp[5] = _mm_loadu_si128((const __m128i*)(rgb + 80)); - - RGB24PackedToPlanarHelper(tmp, out); - RGB24PackedToPlanarHelper(out, tmp); - RGB24PackedToPlanarHelper(tmp, out); - RGB24PackedToPlanarHelper(out, tmp); - RGB24PackedToPlanarHelper(tmp, out); -} - -// Convert 8 packed ARGB to r[], g[], b[] -static WEBP_INLINE void RGB32PackedToPlanar(const uint32_t* const argb, - __m128i* const r, - __m128i* const g, - __m128i* const b) { - const __m128i zero = _mm_setzero_si128(); - const __m128i in0 = LOAD_16(argb + 0); // argb3 | argb2 | argb1 | argb0 - const __m128i in1 = LOAD_16(argb + 4); // argb7 | argb6 | argb5 | argb4 - // column-wise transpose - const __m128i A0 = _mm_unpacklo_epi8(in0, in1); - const __m128i A1 = _mm_unpackhi_epi8(in0, in1); - const __m128i B0 = _mm_unpacklo_epi8(A0, A1); - const __m128i B1 = _mm_unpackhi_epi8(A0, A1); - // C0 = g7 g6 ... g1 g0 | b7 b6 ... b1 b0 - // C1 = a7 a6 ... a1 a0 | r7 r6 ... r1 r0 - const __m128i C0 = _mm_unpacklo_epi8(B0, B1); - const __m128i C1 = _mm_unpackhi_epi8(B0, B1); - // store 16b - *r = _mm_unpacklo_epi8(C1, zero); - *g = _mm_unpackhi_epi8(C0, zero); - *b = _mm_unpacklo_epi8(C0, zero); -} - -// This macro computes (RG * MULT_RG + GB * MULT_GB + ROUNDER) >> DESCALE_FIX -// It's a macro and not a function because we need to use immediate values with -// srai_epi32, e.g. -#define TRANSFORM(RG_LO, RG_HI, GB_LO, GB_HI, MULT_RG, MULT_GB, \ - ROUNDER, DESCALE_FIX, OUT) do { \ - const __m128i V0_lo = _mm_madd_epi16(RG_LO, MULT_RG); \ - const __m128i V0_hi = _mm_madd_epi16(RG_HI, MULT_RG); \ - const __m128i V1_lo = _mm_madd_epi16(GB_LO, MULT_GB); \ - const __m128i V1_hi = _mm_madd_epi16(GB_HI, MULT_GB); \ - const __m128i V2_lo = _mm_add_epi32(V0_lo, V1_lo); \ - const __m128i V2_hi = _mm_add_epi32(V0_hi, V1_hi); \ - const __m128i V3_lo = _mm_add_epi32(V2_lo, ROUNDER); \ - const __m128i V3_hi = _mm_add_epi32(V2_hi, ROUNDER); \ - const __m128i V5_lo = _mm_srai_epi32(V3_lo, DESCALE_FIX); \ - const __m128i V5_hi = _mm_srai_epi32(V3_hi, DESCALE_FIX); \ - (OUT) = _mm_packs_epi32(V5_lo, V5_hi); \ -} while (0) - -#define MK_CST_16(A, B) _mm_set_epi16((B), (A), (B), (A), (B), (A), (B), (A)) -static WEBP_INLINE void ConvertRGBToY(const __m128i* const R, - const __m128i* const G, - const __m128i* const B, - __m128i* const Y) { - const __m128i kRG_y = MK_CST_16(16839, 33059 - 16384); - const __m128i kGB_y = MK_CST_16(16384, 6420); - const __m128i kHALF_Y = _mm_set1_epi32((16 << YUV_FIX) + YUV_HALF); - - const __m128i RG_lo = _mm_unpacklo_epi16(*R, *G); - const __m128i RG_hi = _mm_unpackhi_epi16(*R, *G); - const __m128i GB_lo = _mm_unpacklo_epi16(*G, *B); - const __m128i GB_hi = _mm_unpackhi_epi16(*G, *B); - TRANSFORM(RG_lo, RG_hi, GB_lo, GB_hi, kRG_y, kGB_y, kHALF_Y, YUV_FIX, *Y); -} - -static WEBP_INLINE void ConvertRGBToUV(const __m128i* const R, - const __m128i* const G, - const __m128i* const B, - __m128i* const U, __m128i* const V) { - const __m128i kRG_u = MK_CST_16(-9719, -19081); - const __m128i kGB_u = MK_CST_16(0, 28800); - const __m128i kRG_v = MK_CST_16(28800, 0); - const __m128i kGB_v = MK_CST_16(-24116, -4684); - const __m128i kHALF_UV = _mm_set1_epi32(((128 << YUV_FIX) + YUV_HALF) << 2); - - const __m128i RG_lo = _mm_unpacklo_epi16(*R, *G); - const __m128i RG_hi = _mm_unpackhi_epi16(*R, *G); - const __m128i GB_lo = _mm_unpacklo_epi16(*G, *B); - const __m128i GB_hi = _mm_unpackhi_epi16(*G, *B); - TRANSFORM(RG_lo, RG_hi, GB_lo, GB_hi, kRG_u, kGB_u, - kHALF_UV, YUV_FIX + 2, *U); - TRANSFORM(RG_lo, RG_hi, GB_lo, GB_hi, kRG_v, kGB_v, - kHALF_UV, YUV_FIX + 2, *V); -} - -#undef MK_CST_16 -#undef TRANSFORM - -static void ConvertRGB24ToY(const uint8_t* rgb, uint8_t* y, int width) { - const int max_width = width & ~31; - int i; - for (i = 0; i < max_width; rgb += 3 * 16 * 2) { - __m128i rgb_plane[6]; - int j; - - RGB24PackedToPlanar(rgb, rgb_plane); - - for (j = 0; j < 2; ++j, i += 16) { - const __m128i zero = _mm_setzero_si128(); - __m128i r, g, b, Y0, Y1; - - // Convert to 16-bit Y. - r = _mm_unpacklo_epi8(rgb_plane[0 + j], zero); - g = _mm_unpacklo_epi8(rgb_plane[2 + j], zero); - b = _mm_unpacklo_epi8(rgb_plane[4 + j], zero); - ConvertRGBToY(&r, &g, &b, &Y0); - - // Convert to 16-bit Y. - r = _mm_unpackhi_epi8(rgb_plane[0 + j], zero); - g = _mm_unpackhi_epi8(rgb_plane[2 + j], zero); - b = _mm_unpackhi_epi8(rgb_plane[4 + j], zero); - ConvertRGBToY(&r, &g, &b, &Y1); - - // Cast to 8-bit and store. - STORE_16(_mm_packus_epi16(Y0, Y1), y + i); - } - } - for (; i < width; ++i, rgb += 3) { // left-over - y[i] = VP8RGBToY(rgb[0], rgb[1], rgb[2], YUV_HALF); - } -} - -static void ConvertBGR24ToY(const uint8_t* bgr, uint8_t* y, int width) { - const int max_width = width & ~31; - int i; - for (i = 0; i < max_width; bgr += 3 * 16 * 2) { - __m128i bgr_plane[6]; - int j; - - RGB24PackedToPlanar(bgr, bgr_plane); - - for (j = 0; j < 2; ++j, i += 16) { - const __m128i zero = _mm_setzero_si128(); - __m128i r, g, b, Y0, Y1; - - // Convert to 16-bit Y. - b = _mm_unpacklo_epi8(bgr_plane[0 + j], zero); - g = _mm_unpacklo_epi8(bgr_plane[2 + j], zero); - r = _mm_unpacklo_epi8(bgr_plane[4 + j], zero); - ConvertRGBToY(&r, &g, &b, &Y0); - - // Convert to 16-bit Y. - b = _mm_unpackhi_epi8(bgr_plane[0 + j], zero); - g = _mm_unpackhi_epi8(bgr_plane[2 + j], zero); - r = _mm_unpackhi_epi8(bgr_plane[4 + j], zero); - ConvertRGBToY(&r, &g, &b, &Y1); - - // Cast to 8-bit and store. - STORE_16(_mm_packus_epi16(Y0, Y1), y + i); - } - } - for (; i < width; ++i, bgr += 3) { // left-over - y[i] = VP8RGBToY(bgr[2], bgr[1], bgr[0], YUV_HALF); - } -} - -static void ConvertARGBToY(const uint32_t* argb, uint8_t* y, int width) { - const int max_width = width & ~15; - int i; - for (i = 0; i < max_width; i += 16) { - __m128i r, g, b, Y0, Y1; - RGB32PackedToPlanar(&argb[i + 0], &r, &g, &b); - ConvertRGBToY(&r, &g, &b, &Y0); - RGB32PackedToPlanar(&argb[i + 8], &r, &g, &b); - ConvertRGBToY(&r, &g, &b, &Y1); - STORE_16(_mm_packus_epi16(Y0, Y1), y + i); - } - for (; i < width; ++i) { // left-over - const uint32_t p = argb[i]; - y[i] = VP8RGBToY((p >> 16) & 0xff, (p >> 8) & 0xff, (p >> 0) & 0xff, - YUV_HALF); - } -} - -// Horizontal add (doubled) of two 16b values, result is 16b. -// in: A | B | C | D | ... -> out: 2*(A+B) | 2*(C+D) | ... -static void HorizontalAddPack(const __m128i* const A, const __m128i* const B, - __m128i* const out) { - const __m128i k2 = _mm_set1_epi16(2); - const __m128i C = _mm_madd_epi16(*A, k2); - const __m128i D = _mm_madd_epi16(*B, k2); - *out = _mm_packs_epi32(C, D); -} - -static void ConvertARGBToUV(const uint32_t* argb, uint8_t* u, uint8_t* v, - int src_width, int do_store) { - const int max_width = src_width & ~31; - int i; - for (i = 0; i < max_width; i += 32, u += 16, v += 16) { - __m128i r0, g0, b0, r1, g1, b1, U0, V0, U1, V1; - RGB32PackedToPlanar(&argb[i + 0], &r0, &g0, &b0); - RGB32PackedToPlanar(&argb[i + 8], &r1, &g1, &b1); - HorizontalAddPack(&r0, &r1, &r0); - HorizontalAddPack(&g0, &g1, &g0); - HorizontalAddPack(&b0, &b1, &b0); - ConvertRGBToUV(&r0, &g0, &b0, &U0, &V0); - - RGB32PackedToPlanar(&argb[i + 16], &r0, &g0, &b0); - RGB32PackedToPlanar(&argb[i + 24], &r1, &g1, &b1); - HorizontalAddPack(&r0, &r1, &r0); - HorizontalAddPack(&g0, &g1, &g0); - HorizontalAddPack(&b0, &b1, &b0); - ConvertRGBToUV(&r0, &g0, &b0, &U1, &V1); - - U0 = _mm_packus_epi16(U0, U1); - V0 = _mm_packus_epi16(V0, V1); - if (!do_store) { - const __m128i prev_u = LOAD_16(u); - const __m128i prev_v = LOAD_16(v); - U0 = _mm_avg_epu8(U0, prev_u); - V0 = _mm_avg_epu8(V0, prev_v); - } - STORE_16(U0, u); - STORE_16(V0, v); - } - if (i < src_width) { // left-over - WebPConvertARGBToUV_C(argb + i, u, v, src_width - i, do_store); - } -} - -// Convert 16 packed ARGB 16b-values to r[], g[], b[] -static WEBP_INLINE void RGBA32PackedToPlanar_16b(const uint16_t* const rgbx, - __m128i* const r, - __m128i* const g, - __m128i* const b) { - const __m128i in0 = LOAD_16(rgbx + 0); // r0 | g0 | b0 |x| r1 | g1 | b1 |x - const __m128i in1 = LOAD_16(rgbx + 8); // r2 | g2 | b2 |x| r3 | g3 | b3 |x - const __m128i in2 = LOAD_16(rgbx + 16); // r4 | ... - const __m128i in3 = LOAD_16(rgbx + 24); // r6 | ... - // column-wise transpose - const __m128i A0 = _mm_unpacklo_epi16(in0, in1); - const __m128i A1 = _mm_unpackhi_epi16(in0, in1); - const __m128i A2 = _mm_unpacklo_epi16(in2, in3); - const __m128i A3 = _mm_unpackhi_epi16(in2, in3); - const __m128i B0 = _mm_unpacklo_epi16(A0, A1); // r0 r1 r2 r3 | g0 g1 .. - const __m128i B1 = _mm_unpackhi_epi16(A0, A1); // b0 b1 b2 b3 | x x x x - const __m128i B2 = _mm_unpacklo_epi16(A2, A3); // r4 r5 r6 r7 | g4 g5 .. - const __m128i B3 = _mm_unpackhi_epi16(A2, A3); // b4 b5 b6 b7 | x x x x - *r = _mm_unpacklo_epi64(B0, B2); - *g = _mm_unpackhi_epi64(B0, B2); - *b = _mm_unpacklo_epi64(B1, B3); -} - -static void ConvertRGBA32ToUV(const uint16_t* rgb, - uint8_t* u, uint8_t* v, int width) { - const int max_width = width & ~15; - const uint16_t* const last_rgb = rgb + 4 * max_width; - while (rgb < last_rgb) { - __m128i r, g, b, U0, V0, U1, V1; - RGBA32PackedToPlanar_16b(rgb + 0, &r, &g, &b); - ConvertRGBToUV(&r, &g, &b, &U0, &V0); - RGBA32PackedToPlanar_16b(rgb + 32, &r, &g, &b); - ConvertRGBToUV(&r, &g, &b, &U1, &V1); - STORE_16(_mm_packus_epi16(U0, U1), u); - STORE_16(_mm_packus_epi16(V0, V1), v); - u += 16; - v += 16; - rgb += 2 * 32; - } - if (max_width < width) { // left-over - WebPConvertRGBA32ToUV_C(rgb, u, v, width - max_width); - } -} - -//------------------------------------------------------------------------------ - -extern void WebPInitConvertARGBToYUVSSE2(void); - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitConvertARGBToYUVSSE2(void) { - WebPConvertARGBToY = ConvertARGBToY; - WebPConvertARGBToUV = ConvertARGBToUV; - - WebPConvertRGB24ToY = ConvertRGB24ToY; - WebPConvertBGR24ToY = ConvertBGR24ToY; - - WebPConvertRGBA32ToUV = ConvertRGBA32ToUV; -} - -#else // !WEBP_USE_SSE2 - -WEBP_DSP_INIT_STUB(WebPInitSamplersSSE2) -WEBP_DSP_INIT_STUB(WebPInitConvertARGBToYUVSSE2) - -#endif // WEBP_USE_SSE2 diff --git a/drivers/webp/dsp/yuv_tables_sse2.h b/drivers/webp/dsp/yuv_tables_sse2.h deleted file mode 100644 index 2b0f057518..0000000000 --- a/drivers/webp/dsp/yuv_tables_sse2.h +++ /dev/null @@ -1,536 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// SSE2 tables for YUV->RGB conversion (12kB overall) -// -// Author: Skal (pascal.massimino@gmail.com) - -// This file is not compiled, but #include'd directly from yuv.c -// Only used if WEBP_YUV_USE_SSE2_TABLES is defined. - -static const VP8kCstSSE2 VP8kYtoRGBA[256] = { - {{0xfffb77b0, 0xfffb77b0, 0xfffb77b0, 0x003fc000}}, - {{0xfffbc235, 0xfffbc235, 0xfffbc235, 0x003fc000}}, - {{0xfffc0cba, 0xfffc0cba, 0xfffc0cba, 0x003fc000}}, - {{0xfffc573f, 0xfffc573f, 0xfffc573f, 0x003fc000}}, - {{0xfffca1c4, 0xfffca1c4, 0xfffca1c4, 0x003fc000}}, - {{0xfffcec49, 0xfffcec49, 0xfffcec49, 0x003fc000}}, - {{0xfffd36ce, 0xfffd36ce, 0xfffd36ce, 0x003fc000}}, - {{0xfffd8153, 0xfffd8153, 0xfffd8153, 0x003fc000}}, - {{0xfffdcbd8, 0xfffdcbd8, 0xfffdcbd8, 0x003fc000}}, - {{0xfffe165d, 0xfffe165d, 0xfffe165d, 0x003fc000}}, - {{0xfffe60e2, 0xfffe60e2, 0xfffe60e2, 0x003fc000}}, - {{0xfffeab67, 0xfffeab67, 0xfffeab67, 0x003fc000}}, - {{0xfffef5ec, 0xfffef5ec, 0xfffef5ec, 0x003fc000}}, - {{0xffff4071, 0xffff4071, 0xffff4071, 0x003fc000}}, - {{0xffff8af6, 0xffff8af6, 0xffff8af6, 0x003fc000}}, - {{0xffffd57b, 0xffffd57b, 0xffffd57b, 0x003fc000}}, - {{0x00002000, 0x00002000, 0x00002000, 0x003fc000}}, - {{0x00006a85, 0x00006a85, 0x00006a85, 0x003fc000}}, - {{0x0000b50a, 0x0000b50a, 0x0000b50a, 0x003fc000}}, - {{0x0000ff8f, 0x0000ff8f, 0x0000ff8f, 0x003fc000}}, - {{0x00014a14, 0x00014a14, 0x00014a14, 0x003fc000}}, - {{0x00019499, 0x00019499, 0x00019499, 0x003fc000}}, - {{0x0001df1e, 0x0001df1e, 0x0001df1e, 0x003fc000}}, - {{0x000229a3, 0x000229a3, 0x000229a3, 0x003fc000}}, - {{0x00027428, 0x00027428, 0x00027428, 0x003fc000}}, - {{0x0002bead, 0x0002bead, 0x0002bead, 0x003fc000}}, - {{0x00030932, 0x00030932, 0x00030932, 0x003fc000}}, - {{0x000353b7, 0x000353b7, 0x000353b7, 0x003fc000}}, - {{0x00039e3c, 0x00039e3c, 0x00039e3c, 0x003fc000}}, - {{0x0003e8c1, 0x0003e8c1, 0x0003e8c1, 0x003fc000}}, - {{0x00043346, 0x00043346, 0x00043346, 0x003fc000}}, - {{0x00047dcb, 0x00047dcb, 0x00047dcb, 0x003fc000}}, - {{0x0004c850, 0x0004c850, 0x0004c850, 0x003fc000}}, - {{0x000512d5, 0x000512d5, 0x000512d5, 0x003fc000}}, - {{0x00055d5a, 0x00055d5a, 0x00055d5a, 0x003fc000}}, - {{0x0005a7df, 0x0005a7df, 0x0005a7df, 0x003fc000}}, - {{0x0005f264, 0x0005f264, 0x0005f264, 0x003fc000}}, - {{0x00063ce9, 0x00063ce9, 0x00063ce9, 0x003fc000}}, - {{0x0006876e, 0x0006876e, 0x0006876e, 0x003fc000}}, - {{0x0006d1f3, 0x0006d1f3, 0x0006d1f3, 0x003fc000}}, - {{0x00071c78, 0x00071c78, 0x00071c78, 0x003fc000}}, - {{0x000766fd, 0x000766fd, 0x000766fd, 0x003fc000}}, - {{0x0007b182, 0x0007b182, 0x0007b182, 0x003fc000}}, - {{0x0007fc07, 0x0007fc07, 0x0007fc07, 0x003fc000}}, - {{0x0008468c, 0x0008468c, 0x0008468c, 0x003fc000}}, - {{0x00089111, 0x00089111, 0x00089111, 0x003fc000}}, - {{0x0008db96, 0x0008db96, 0x0008db96, 0x003fc000}}, - {{0x0009261b, 0x0009261b, 0x0009261b, 0x003fc000}}, - {{0x000970a0, 0x000970a0, 0x000970a0, 0x003fc000}}, - {{0x0009bb25, 0x0009bb25, 0x0009bb25, 0x003fc000}}, - {{0x000a05aa, 0x000a05aa, 0x000a05aa, 0x003fc000}}, - {{0x000a502f, 0x000a502f, 0x000a502f, 0x003fc000}}, - {{0x000a9ab4, 0x000a9ab4, 0x000a9ab4, 0x003fc000}}, - {{0x000ae539, 0x000ae539, 0x000ae539, 0x003fc000}}, - {{0x000b2fbe, 0x000b2fbe, 0x000b2fbe, 0x003fc000}}, - {{0x000b7a43, 0x000b7a43, 0x000b7a43, 0x003fc000}}, - {{0x000bc4c8, 0x000bc4c8, 0x000bc4c8, 0x003fc000}}, - {{0x000c0f4d, 0x000c0f4d, 0x000c0f4d, 0x003fc000}}, - {{0x000c59d2, 0x000c59d2, 0x000c59d2, 0x003fc000}}, - {{0x000ca457, 0x000ca457, 0x000ca457, 0x003fc000}}, - {{0x000ceedc, 0x000ceedc, 0x000ceedc, 0x003fc000}}, - {{0x000d3961, 0x000d3961, 0x000d3961, 0x003fc000}}, - {{0x000d83e6, 0x000d83e6, 0x000d83e6, 0x003fc000}}, - {{0x000dce6b, 0x000dce6b, 0x000dce6b, 0x003fc000}}, - {{0x000e18f0, 0x000e18f0, 0x000e18f0, 0x003fc000}}, - {{0x000e6375, 0x000e6375, 0x000e6375, 0x003fc000}}, - {{0x000eadfa, 0x000eadfa, 0x000eadfa, 0x003fc000}}, - {{0x000ef87f, 0x000ef87f, 0x000ef87f, 0x003fc000}}, - {{0x000f4304, 0x000f4304, 0x000f4304, 0x003fc000}}, - {{0x000f8d89, 0x000f8d89, 0x000f8d89, 0x003fc000}}, - {{0x000fd80e, 0x000fd80e, 0x000fd80e, 0x003fc000}}, - {{0x00102293, 0x00102293, 0x00102293, 0x003fc000}}, - {{0x00106d18, 0x00106d18, 0x00106d18, 0x003fc000}}, - {{0x0010b79d, 0x0010b79d, 0x0010b79d, 0x003fc000}}, - {{0x00110222, 0x00110222, 0x00110222, 0x003fc000}}, - {{0x00114ca7, 0x00114ca7, 0x00114ca7, 0x003fc000}}, - {{0x0011972c, 0x0011972c, 0x0011972c, 0x003fc000}}, - {{0x0011e1b1, 0x0011e1b1, 0x0011e1b1, 0x003fc000}}, - {{0x00122c36, 0x00122c36, 0x00122c36, 0x003fc000}}, - {{0x001276bb, 0x001276bb, 0x001276bb, 0x003fc000}}, - {{0x0012c140, 0x0012c140, 0x0012c140, 0x003fc000}}, - {{0x00130bc5, 0x00130bc5, 0x00130bc5, 0x003fc000}}, - {{0x0013564a, 0x0013564a, 0x0013564a, 0x003fc000}}, - {{0x0013a0cf, 0x0013a0cf, 0x0013a0cf, 0x003fc000}}, - {{0x0013eb54, 0x0013eb54, 0x0013eb54, 0x003fc000}}, - {{0x001435d9, 0x001435d9, 0x001435d9, 0x003fc000}}, - {{0x0014805e, 0x0014805e, 0x0014805e, 0x003fc000}}, - {{0x0014cae3, 0x0014cae3, 0x0014cae3, 0x003fc000}}, - {{0x00151568, 0x00151568, 0x00151568, 0x003fc000}}, - {{0x00155fed, 0x00155fed, 0x00155fed, 0x003fc000}}, - {{0x0015aa72, 0x0015aa72, 0x0015aa72, 0x003fc000}}, - {{0x0015f4f7, 0x0015f4f7, 0x0015f4f7, 0x003fc000}}, - {{0x00163f7c, 0x00163f7c, 0x00163f7c, 0x003fc000}}, - {{0x00168a01, 0x00168a01, 0x00168a01, 0x003fc000}}, - {{0x0016d486, 0x0016d486, 0x0016d486, 0x003fc000}}, - {{0x00171f0b, 0x00171f0b, 0x00171f0b, 0x003fc000}}, - {{0x00176990, 0x00176990, 0x00176990, 0x003fc000}}, - {{0x0017b415, 0x0017b415, 0x0017b415, 0x003fc000}}, - {{0x0017fe9a, 0x0017fe9a, 0x0017fe9a, 0x003fc000}}, - {{0x0018491f, 0x0018491f, 0x0018491f, 0x003fc000}}, - {{0x001893a4, 0x001893a4, 0x001893a4, 0x003fc000}}, - {{0x0018de29, 0x0018de29, 0x0018de29, 0x003fc000}}, - {{0x001928ae, 0x001928ae, 0x001928ae, 0x003fc000}}, - {{0x00197333, 0x00197333, 0x00197333, 0x003fc000}}, - {{0x0019bdb8, 0x0019bdb8, 0x0019bdb8, 0x003fc000}}, - {{0x001a083d, 0x001a083d, 0x001a083d, 0x003fc000}}, - {{0x001a52c2, 0x001a52c2, 0x001a52c2, 0x003fc000}}, - {{0x001a9d47, 0x001a9d47, 0x001a9d47, 0x003fc000}}, - {{0x001ae7cc, 0x001ae7cc, 0x001ae7cc, 0x003fc000}}, - {{0x001b3251, 0x001b3251, 0x001b3251, 0x003fc000}}, - {{0x001b7cd6, 0x001b7cd6, 0x001b7cd6, 0x003fc000}}, - {{0x001bc75b, 0x001bc75b, 0x001bc75b, 0x003fc000}}, - {{0x001c11e0, 0x001c11e0, 0x001c11e0, 0x003fc000}}, - {{0x001c5c65, 0x001c5c65, 0x001c5c65, 0x003fc000}}, - {{0x001ca6ea, 0x001ca6ea, 0x001ca6ea, 0x003fc000}}, - {{0x001cf16f, 0x001cf16f, 0x001cf16f, 0x003fc000}}, - {{0x001d3bf4, 0x001d3bf4, 0x001d3bf4, 0x003fc000}}, - {{0x001d8679, 0x001d8679, 0x001d8679, 0x003fc000}}, - {{0x001dd0fe, 0x001dd0fe, 0x001dd0fe, 0x003fc000}}, - {{0x001e1b83, 0x001e1b83, 0x001e1b83, 0x003fc000}}, - {{0x001e6608, 0x001e6608, 0x001e6608, 0x003fc000}}, - {{0x001eb08d, 0x001eb08d, 0x001eb08d, 0x003fc000}}, - {{0x001efb12, 0x001efb12, 0x001efb12, 0x003fc000}}, - {{0x001f4597, 0x001f4597, 0x001f4597, 0x003fc000}}, - {{0x001f901c, 0x001f901c, 0x001f901c, 0x003fc000}}, - {{0x001fdaa1, 0x001fdaa1, 0x001fdaa1, 0x003fc000}}, - {{0x00202526, 0x00202526, 0x00202526, 0x003fc000}}, - {{0x00206fab, 0x00206fab, 0x00206fab, 0x003fc000}}, - {{0x0020ba30, 0x0020ba30, 0x0020ba30, 0x003fc000}}, - {{0x002104b5, 0x002104b5, 0x002104b5, 0x003fc000}}, - {{0x00214f3a, 0x00214f3a, 0x00214f3a, 0x003fc000}}, - {{0x002199bf, 0x002199bf, 0x002199bf, 0x003fc000}}, - {{0x0021e444, 0x0021e444, 0x0021e444, 0x003fc000}}, - {{0x00222ec9, 0x00222ec9, 0x00222ec9, 0x003fc000}}, - {{0x0022794e, 0x0022794e, 0x0022794e, 0x003fc000}}, - {{0x0022c3d3, 0x0022c3d3, 0x0022c3d3, 0x003fc000}}, - {{0x00230e58, 0x00230e58, 0x00230e58, 0x003fc000}}, - {{0x002358dd, 0x002358dd, 0x002358dd, 0x003fc000}}, - {{0x0023a362, 0x0023a362, 0x0023a362, 0x003fc000}}, - {{0x0023ede7, 0x0023ede7, 0x0023ede7, 0x003fc000}}, - {{0x0024386c, 0x0024386c, 0x0024386c, 0x003fc000}}, - {{0x002482f1, 0x002482f1, 0x002482f1, 0x003fc000}}, - {{0x0024cd76, 0x0024cd76, 0x0024cd76, 0x003fc000}}, - {{0x002517fb, 0x002517fb, 0x002517fb, 0x003fc000}}, - {{0x00256280, 0x00256280, 0x00256280, 0x003fc000}}, - {{0x0025ad05, 0x0025ad05, 0x0025ad05, 0x003fc000}}, - {{0x0025f78a, 0x0025f78a, 0x0025f78a, 0x003fc000}}, - {{0x0026420f, 0x0026420f, 0x0026420f, 0x003fc000}}, - {{0x00268c94, 0x00268c94, 0x00268c94, 0x003fc000}}, - {{0x0026d719, 0x0026d719, 0x0026d719, 0x003fc000}}, - {{0x0027219e, 0x0027219e, 0x0027219e, 0x003fc000}}, - {{0x00276c23, 0x00276c23, 0x00276c23, 0x003fc000}}, - {{0x0027b6a8, 0x0027b6a8, 0x0027b6a8, 0x003fc000}}, - {{0x0028012d, 0x0028012d, 0x0028012d, 0x003fc000}}, - {{0x00284bb2, 0x00284bb2, 0x00284bb2, 0x003fc000}}, - {{0x00289637, 0x00289637, 0x00289637, 0x003fc000}}, - {{0x0028e0bc, 0x0028e0bc, 0x0028e0bc, 0x003fc000}}, - {{0x00292b41, 0x00292b41, 0x00292b41, 0x003fc000}}, - {{0x002975c6, 0x002975c6, 0x002975c6, 0x003fc000}}, - {{0x0029c04b, 0x0029c04b, 0x0029c04b, 0x003fc000}}, - {{0x002a0ad0, 0x002a0ad0, 0x002a0ad0, 0x003fc000}}, - {{0x002a5555, 0x002a5555, 0x002a5555, 0x003fc000}}, - {{0x002a9fda, 0x002a9fda, 0x002a9fda, 0x003fc000}}, - {{0x002aea5f, 0x002aea5f, 0x002aea5f, 0x003fc000}}, - {{0x002b34e4, 0x002b34e4, 0x002b34e4, 0x003fc000}}, - {{0x002b7f69, 0x002b7f69, 0x002b7f69, 0x003fc000}}, - {{0x002bc9ee, 0x002bc9ee, 0x002bc9ee, 0x003fc000}}, - {{0x002c1473, 0x002c1473, 0x002c1473, 0x003fc000}}, - {{0x002c5ef8, 0x002c5ef8, 0x002c5ef8, 0x003fc000}}, - {{0x002ca97d, 0x002ca97d, 0x002ca97d, 0x003fc000}}, - {{0x002cf402, 0x002cf402, 0x002cf402, 0x003fc000}}, - {{0x002d3e87, 0x002d3e87, 0x002d3e87, 0x003fc000}}, - {{0x002d890c, 0x002d890c, 0x002d890c, 0x003fc000}}, - {{0x002dd391, 0x002dd391, 0x002dd391, 0x003fc000}}, - {{0x002e1e16, 0x002e1e16, 0x002e1e16, 0x003fc000}}, - {{0x002e689b, 0x002e689b, 0x002e689b, 0x003fc000}}, - {{0x002eb320, 0x002eb320, 0x002eb320, 0x003fc000}}, - {{0x002efda5, 0x002efda5, 0x002efda5, 0x003fc000}}, - {{0x002f482a, 0x002f482a, 0x002f482a, 0x003fc000}}, - {{0x002f92af, 0x002f92af, 0x002f92af, 0x003fc000}}, - {{0x002fdd34, 0x002fdd34, 0x002fdd34, 0x003fc000}}, - {{0x003027b9, 0x003027b9, 0x003027b9, 0x003fc000}}, - {{0x0030723e, 0x0030723e, 0x0030723e, 0x003fc000}}, - {{0x0030bcc3, 0x0030bcc3, 0x0030bcc3, 0x003fc000}}, - {{0x00310748, 0x00310748, 0x00310748, 0x003fc000}}, - {{0x003151cd, 0x003151cd, 0x003151cd, 0x003fc000}}, - {{0x00319c52, 0x00319c52, 0x00319c52, 0x003fc000}}, - {{0x0031e6d7, 0x0031e6d7, 0x0031e6d7, 0x003fc000}}, - {{0x0032315c, 0x0032315c, 0x0032315c, 0x003fc000}}, - {{0x00327be1, 0x00327be1, 0x00327be1, 0x003fc000}}, - {{0x0032c666, 0x0032c666, 0x0032c666, 0x003fc000}}, - {{0x003310eb, 0x003310eb, 0x003310eb, 0x003fc000}}, - {{0x00335b70, 0x00335b70, 0x00335b70, 0x003fc000}}, - {{0x0033a5f5, 0x0033a5f5, 0x0033a5f5, 0x003fc000}}, - {{0x0033f07a, 0x0033f07a, 0x0033f07a, 0x003fc000}}, - {{0x00343aff, 0x00343aff, 0x00343aff, 0x003fc000}}, - {{0x00348584, 0x00348584, 0x00348584, 0x003fc000}}, - {{0x0034d009, 0x0034d009, 0x0034d009, 0x003fc000}}, - {{0x00351a8e, 0x00351a8e, 0x00351a8e, 0x003fc000}}, - {{0x00356513, 0x00356513, 0x00356513, 0x003fc000}}, - {{0x0035af98, 0x0035af98, 0x0035af98, 0x003fc000}}, - {{0x0035fa1d, 0x0035fa1d, 0x0035fa1d, 0x003fc000}}, - {{0x003644a2, 0x003644a2, 0x003644a2, 0x003fc000}}, - {{0x00368f27, 0x00368f27, 0x00368f27, 0x003fc000}}, - {{0x0036d9ac, 0x0036d9ac, 0x0036d9ac, 0x003fc000}}, - {{0x00372431, 0x00372431, 0x00372431, 0x003fc000}}, - {{0x00376eb6, 0x00376eb6, 0x00376eb6, 0x003fc000}}, - {{0x0037b93b, 0x0037b93b, 0x0037b93b, 0x003fc000}}, - {{0x003803c0, 0x003803c0, 0x003803c0, 0x003fc000}}, - {{0x00384e45, 0x00384e45, 0x00384e45, 0x003fc000}}, - {{0x003898ca, 0x003898ca, 0x003898ca, 0x003fc000}}, - {{0x0038e34f, 0x0038e34f, 0x0038e34f, 0x003fc000}}, - {{0x00392dd4, 0x00392dd4, 0x00392dd4, 0x003fc000}}, - {{0x00397859, 0x00397859, 0x00397859, 0x003fc000}}, - {{0x0039c2de, 0x0039c2de, 0x0039c2de, 0x003fc000}}, - {{0x003a0d63, 0x003a0d63, 0x003a0d63, 0x003fc000}}, - {{0x003a57e8, 0x003a57e8, 0x003a57e8, 0x003fc000}}, - {{0x003aa26d, 0x003aa26d, 0x003aa26d, 0x003fc000}}, - {{0x003aecf2, 0x003aecf2, 0x003aecf2, 0x003fc000}}, - {{0x003b3777, 0x003b3777, 0x003b3777, 0x003fc000}}, - {{0x003b81fc, 0x003b81fc, 0x003b81fc, 0x003fc000}}, - {{0x003bcc81, 0x003bcc81, 0x003bcc81, 0x003fc000}}, - {{0x003c1706, 0x003c1706, 0x003c1706, 0x003fc000}}, - {{0x003c618b, 0x003c618b, 0x003c618b, 0x003fc000}}, - {{0x003cac10, 0x003cac10, 0x003cac10, 0x003fc000}}, - {{0x003cf695, 0x003cf695, 0x003cf695, 0x003fc000}}, - {{0x003d411a, 0x003d411a, 0x003d411a, 0x003fc000}}, - {{0x003d8b9f, 0x003d8b9f, 0x003d8b9f, 0x003fc000}}, - {{0x003dd624, 0x003dd624, 0x003dd624, 0x003fc000}}, - {{0x003e20a9, 0x003e20a9, 0x003e20a9, 0x003fc000}}, - {{0x003e6b2e, 0x003e6b2e, 0x003e6b2e, 0x003fc000}}, - {{0x003eb5b3, 0x003eb5b3, 0x003eb5b3, 0x003fc000}}, - {{0x003f0038, 0x003f0038, 0x003f0038, 0x003fc000}}, - {{0x003f4abd, 0x003f4abd, 0x003f4abd, 0x003fc000}}, - {{0x003f9542, 0x003f9542, 0x003f9542, 0x003fc000}}, - {{0x003fdfc7, 0x003fdfc7, 0x003fdfc7, 0x003fc000}}, - {{0x00402a4c, 0x00402a4c, 0x00402a4c, 0x003fc000}}, - {{0x004074d1, 0x004074d1, 0x004074d1, 0x003fc000}}, - {{0x0040bf56, 0x0040bf56, 0x0040bf56, 0x003fc000}}, - {{0x004109db, 0x004109db, 0x004109db, 0x003fc000}}, - {{0x00415460, 0x00415460, 0x00415460, 0x003fc000}}, - {{0x00419ee5, 0x00419ee5, 0x00419ee5, 0x003fc000}}, - {{0x0041e96a, 0x0041e96a, 0x0041e96a, 0x003fc000}}, - {{0x004233ef, 0x004233ef, 0x004233ef, 0x003fc000}}, - {{0x00427e74, 0x00427e74, 0x00427e74, 0x003fc000}}, - {{0x0042c8f9, 0x0042c8f9, 0x0042c8f9, 0x003fc000}}, - {{0x0043137e, 0x0043137e, 0x0043137e, 0x003fc000}}, - {{0x00435e03, 0x00435e03, 0x00435e03, 0x003fc000}}, - {{0x0043a888, 0x0043a888, 0x0043a888, 0x003fc000}}, - {{0x0043f30d, 0x0043f30d, 0x0043f30d, 0x003fc000}}, - {{0x00443d92, 0x00443d92, 0x00443d92, 0x003fc000}}, - {{0x00448817, 0x00448817, 0x00448817, 0x003fc000}}, - {{0x0044d29c, 0x0044d29c, 0x0044d29c, 0x003fc000}}, - {{0x00451d21, 0x00451d21, 0x00451d21, 0x003fc000}}, - {{0x004567a6, 0x004567a6, 0x004567a6, 0x003fc000}}, - {{0x0045b22b, 0x0045b22b, 0x0045b22b, 0x003fc000}} -}; - -static const VP8kCstSSE2 VP8kUtoRGBA[256] = { - {{0, 0x000c8980, 0xffbf7300, 0}}, {{0, 0x000c706d, 0xffbff41a, 0}}, - {{0, 0x000c575a, 0xffc07534, 0}}, {{0, 0x000c3e47, 0xffc0f64e, 0}}, - {{0, 0x000c2534, 0xffc17768, 0}}, {{0, 0x000c0c21, 0xffc1f882, 0}}, - {{0, 0x000bf30e, 0xffc2799c, 0}}, {{0, 0x000bd9fb, 0xffc2fab6, 0}}, - {{0, 0x000bc0e8, 0xffc37bd0, 0}}, {{0, 0x000ba7d5, 0xffc3fcea, 0}}, - {{0, 0x000b8ec2, 0xffc47e04, 0}}, {{0, 0x000b75af, 0xffc4ff1e, 0}}, - {{0, 0x000b5c9c, 0xffc58038, 0}}, {{0, 0x000b4389, 0xffc60152, 0}}, - {{0, 0x000b2a76, 0xffc6826c, 0}}, {{0, 0x000b1163, 0xffc70386, 0}}, - {{0, 0x000af850, 0xffc784a0, 0}}, {{0, 0x000adf3d, 0xffc805ba, 0}}, - {{0, 0x000ac62a, 0xffc886d4, 0}}, {{0, 0x000aad17, 0xffc907ee, 0}}, - {{0, 0x000a9404, 0xffc98908, 0}}, {{0, 0x000a7af1, 0xffca0a22, 0}}, - {{0, 0x000a61de, 0xffca8b3c, 0}}, {{0, 0x000a48cb, 0xffcb0c56, 0}}, - {{0, 0x000a2fb8, 0xffcb8d70, 0}}, {{0, 0x000a16a5, 0xffcc0e8a, 0}}, - {{0, 0x0009fd92, 0xffcc8fa4, 0}}, {{0, 0x0009e47f, 0xffcd10be, 0}}, - {{0, 0x0009cb6c, 0xffcd91d8, 0}}, {{0, 0x0009b259, 0xffce12f2, 0}}, - {{0, 0x00099946, 0xffce940c, 0}}, {{0, 0x00098033, 0xffcf1526, 0}}, - {{0, 0x00096720, 0xffcf9640, 0}}, {{0, 0x00094e0d, 0xffd0175a, 0}}, - {{0, 0x000934fa, 0xffd09874, 0}}, {{0, 0x00091be7, 0xffd1198e, 0}}, - {{0, 0x000902d4, 0xffd19aa8, 0}}, {{0, 0x0008e9c1, 0xffd21bc2, 0}}, - {{0, 0x0008d0ae, 0xffd29cdc, 0}}, {{0, 0x0008b79b, 0xffd31df6, 0}}, - {{0, 0x00089e88, 0xffd39f10, 0}}, {{0, 0x00088575, 0xffd4202a, 0}}, - {{0, 0x00086c62, 0xffd4a144, 0}}, {{0, 0x0008534f, 0xffd5225e, 0}}, - {{0, 0x00083a3c, 0xffd5a378, 0}}, {{0, 0x00082129, 0xffd62492, 0}}, - {{0, 0x00080816, 0xffd6a5ac, 0}}, {{0, 0x0007ef03, 0xffd726c6, 0}}, - {{0, 0x0007d5f0, 0xffd7a7e0, 0}}, {{0, 0x0007bcdd, 0xffd828fa, 0}}, - {{0, 0x0007a3ca, 0xffd8aa14, 0}}, {{0, 0x00078ab7, 0xffd92b2e, 0}}, - {{0, 0x000771a4, 0xffd9ac48, 0}}, {{0, 0x00075891, 0xffda2d62, 0}}, - {{0, 0x00073f7e, 0xffdaae7c, 0}}, {{0, 0x0007266b, 0xffdb2f96, 0}}, - {{0, 0x00070d58, 0xffdbb0b0, 0}}, {{0, 0x0006f445, 0xffdc31ca, 0}}, - {{0, 0x0006db32, 0xffdcb2e4, 0}}, {{0, 0x0006c21f, 0xffdd33fe, 0}}, - {{0, 0x0006a90c, 0xffddb518, 0}}, {{0, 0x00068ff9, 0xffde3632, 0}}, - {{0, 0x000676e6, 0xffdeb74c, 0}}, {{0, 0x00065dd3, 0xffdf3866, 0}}, - {{0, 0x000644c0, 0xffdfb980, 0}}, {{0, 0x00062bad, 0xffe03a9a, 0}}, - {{0, 0x0006129a, 0xffe0bbb4, 0}}, {{0, 0x0005f987, 0xffe13cce, 0}}, - {{0, 0x0005e074, 0xffe1bde8, 0}}, {{0, 0x0005c761, 0xffe23f02, 0}}, - {{0, 0x0005ae4e, 0xffe2c01c, 0}}, {{0, 0x0005953b, 0xffe34136, 0}}, - {{0, 0x00057c28, 0xffe3c250, 0}}, {{0, 0x00056315, 0xffe4436a, 0}}, - {{0, 0x00054a02, 0xffe4c484, 0}}, {{0, 0x000530ef, 0xffe5459e, 0}}, - {{0, 0x000517dc, 0xffe5c6b8, 0}}, {{0, 0x0004fec9, 0xffe647d2, 0}}, - {{0, 0x0004e5b6, 0xffe6c8ec, 0}}, {{0, 0x0004cca3, 0xffe74a06, 0}}, - {{0, 0x0004b390, 0xffe7cb20, 0}}, {{0, 0x00049a7d, 0xffe84c3a, 0}}, - {{0, 0x0004816a, 0xffe8cd54, 0}}, {{0, 0x00046857, 0xffe94e6e, 0}}, - {{0, 0x00044f44, 0xffe9cf88, 0}}, {{0, 0x00043631, 0xffea50a2, 0}}, - {{0, 0x00041d1e, 0xffead1bc, 0}}, {{0, 0x0004040b, 0xffeb52d6, 0}}, - {{0, 0x0003eaf8, 0xffebd3f0, 0}}, {{0, 0x0003d1e5, 0xffec550a, 0}}, - {{0, 0x0003b8d2, 0xffecd624, 0}}, {{0, 0x00039fbf, 0xffed573e, 0}}, - {{0, 0x000386ac, 0xffedd858, 0}}, {{0, 0x00036d99, 0xffee5972, 0}}, - {{0, 0x00035486, 0xffeeda8c, 0}}, {{0, 0x00033b73, 0xffef5ba6, 0}}, - {{0, 0x00032260, 0xffefdcc0, 0}}, {{0, 0x0003094d, 0xfff05dda, 0}}, - {{0, 0x0002f03a, 0xfff0def4, 0}}, {{0, 0x0002d727, 0xfff1600e, 0}}, - {{0, 0x0002be14, 0xfff1e128, 0}}, {{0, 0x0002a501, 0xfff26242, 0}}, - {{0, 0x00028bee, 0xfff2e35c, 0}}, {{0, 0x000272db, 0xfff36476, 0}}, - {{0, 0x000259c8, 0xfff3e590, 0}}, {{0, 0x000240b5, 0xfff466aa, 0}}, - {{0, 0x000227a2, 0xfff4e7c4, 0}}, {{0, 0x00020e8f, 0xfff568de, 0}}, - {{0, 0x0001f57c, 0xfff5e9f8, 0}}, {{0, 0x0001dc69, 0xfff66b12, 0}}, - {{0, 0x0001c356, 0xfff6ec2c, 0}}, {{0, 0x0001aa43, 0xfff76d46, 0}}, - {{0, 0x00019130, 0xfff7ee60, 0}}, {{0, 0x0001781d, 0xfff86f7a, 0}}, - {{0, 0x00015f0a, 0xfff8f094, 0}}, {{0, 0x000145f7, 0xfff971ae, 0}}, - {{0, 0x00012ce4, 0xfff9f2c8, 0}}, {{0, 0x000113d1, 0xfffa73e2, 0}}, - {{0, 0x0000fabe, 0xfffaf4fc, 0}}, {{0, 0x0000e1ab, 0xfffb7616, 0}}, - {{0, 0x0000c898, 0xfffbf730, 0}}, {{0, 0x0000af85, 0xfffc784a, 0}}, - {{0, 0x00009672, 0xfffcf964, 0}}, {{0, 0x00007d5f, 0xfffd7a7e, 0}}, - {{0, 0x0000644c, 0xfffdfb98, 0}}, {{0, 0x00004b39, 0xfffe7cb2, 0}}, - {{0, 0x00003226, 0xfffefdcc, 0}}, {{0, 0x00001913, 0xffff7ee6, 0}}, - {{0, 0x00000000, 0x00000000, 0}}, {{0, 0xffffe6ed, 0x0000811a, 0}}, - {{0, 0xffffcdda, 0x00010234, 0}}, {{0, 0xffffb4c7, 0x0001834e, 0}}, - {{0, 0xffff9bb4, 0x00020468, 0}}, {{0, 0xffff82a1, 0x00028582, 0}}, - {{0, 0xffff698e, 0x0003069c, 0}}, {{0, 0xffff507b, 0x000387b6, 0}}, - {{0, 0xffff3768, 0x000408d0, 0}}, {{0, 0xffff1e55, 0x000489ea, 0}}, - {{0, 0xffff0542, 0x00050b04, 0}}, {{0, 0xfffeec2f, 0x00058c1e, 0}}, - {{0, 0xfffed31c, 0x00060d38, 0}}, {{0, 0xfffeba09, 0x00068e52, 0}}, - {{0, 0xfffea0f6, 0x00070f6c, 0}}, {{0, 0xfffe87e3, 0x00079086, 0}}, - {{0, 0xfffe6ed0, 0x000811a0, 0}}, {{0, 0xfffe55bd, 0x000892ba, 0}}, - {{0, 0xfffe3caa, 0x000913d4, 0}}, {{0, 0xfffe2397, 0x000994ee, 0}}, - {{0, 0xfffe0a84, 0x000a1608, 0}}, {{0, 0xfffdf171, 0x000a9722, 0}}, - {{0, 0xfffdd85e, 0x000b183c, 0}}, {{0, 0xfffdbf4b, 0x000b9956, 0}}, - {{0, 0xfffda638, 0x000c1a70, 0}}, {{0, 0xfffd8d25, 0x000c9b8a, 0}}, - {{0, 0xfffd7412, 0x000d1ca4, 0}}, {{0, 0xfffd5aff, 0x000d9dbe, 0}}, - {{0, 0xfffd41ec, 0x000e1ed8, 0}}, {{0, 0xfffd28d9, 0x000e9ff2, 0}}, - {{0, 0xfffd0fc6, 0x000f210c, 0}}, {{0, 0xfffcf6b3, 0x000fa226, 0}}, - {{0, 0xfffcdda0, 0x00102340, 0}}, {{0, 0xfffcc48d, 0x0010a45a, 0}}, - {{0, 0xfffcab7a, 0x00112574, 0}}, {{0, 0xfffc9267, 0x0011a68e, 0}}, - {{0, 0xfffc7954, 0x001227a8, 0}}, {{0, 0xfffc6041, 0x0012a8c2, 0}}, - {{0, 0xfffc472e, 0x001329dc, 0}}, {{0, 0xfffc2e1b, 0x0013aaf6, 0}}, - {{0, 0xfffc1508, 0x00142c10, 0}}, {{0, 0xfffbfbf5, 0x0014ad2a, 0}}, - {{0, 0xfffbe2e2, 0x00152e44, 0}}, {{0, 0xfffbc9cf, 0x0015af5e, 0}}, - {{0, 0xfffbb0bc, 0x00163078, 0}}, {{0, 0xfffb97a9, 0x0016b192, 0}}, - {{0, 0xfffb7e96, 0x001732ac, 0}}, {{0, 0xfffb6583, 0x0017b3c6, 0}}, - {{0, 0xfffb4c70, 0x001834e0, 0}}, {{0, 0xfffb335d, 0x0018b5fa, 0}}, - {{0, 0xfffb1a4a, 0x00193714, 0}}, {{0, 0xfffb0137, 0x0019b82e, 0}}, - {{0, 0xfffae824, 0x001a3948, 0}}, {{0, 0xfffacf11, 0x001aba62, 0}}, - {{0, 0xfffab5fe, 0x001b3b7c, 0}}, {{0, 0xfffa9ceb, 0x001bbc96, 0}}, - {{0, 0xfffa83d8, 0x001c3db0, 0}}, {{0, 0xfffa6ac5, 0x001cbeca, 0}}, - {{0, 0xfffa51b2, 0x001d3fe4, 0}}, {{0, 0xfffa389f, 0x001dc0fe, 0}}, - {{0, 0xfffa1f8c, 0x001e4218, 0}}, {{0, 0xfffa0679, 0x001ec332, 0}}, - {{0, 0xfff9ed66, 0x001f444c, 0}}, {{0, 0xfff9d453, 0x001fc566, 0}}, - {{0, 0xfff9bb40, 0x00204680, 0}}, {{0, 0xfff9a22d, 0x0020c79a, 0}}, - {{0, 0xfff9891a, 0x002148b4, 0}}, {{0, 0xfff97007, 0x0021c9ce, 0}}, - {{0, 0xfff956f4, 0x00224ae8, 0}}, {{0, 0xfff93de1, 0x0022cc02, 0}}, - {{0, 0xfff924ce, 0x00234d1c, 0}}, {{0, 0xfff90bbb, 0x0023ce36, 0}}, - {{0, 0xfff8f2a8, 0x00244f50, 0}}, {{0, 0xfff8d995, 0x0024d06a, 0}}, - {{0, 0xfff8c082, 0x00255184, 0}}, {{0, 0xfff8a76f, 0x0025d29e, 0}}, - {{0, 0xfff88e5c, 0x002653b8, 0}}, {{0, 0xfff87549, 0x0026d4d2, 0}}, - {{0, 0xfff85c36, 0x002755ec, 0}}, {{0, 0xfff84323, 0x0027d706, 0}}, - {{0, 0xfff82a10, 0x00285820, 0}}, {{0, 0xfff810fd, 0x0028d93a, 0}}, - {{0, 0xfff7f7ea, 0x00295a54, 0}}, {{0, 0xfff7ded7, 0x0029db6e, 0}}, - {{0, 0xfff7c5c4, 0x002a5c88, 0}}, {{0, 0xfff7acb1, 0x002adda2, 0}}, - {{0, 0xfff7939e, 0x002b5ebc, 0}}, {{0, 0xfff77a8b, 0x002bdfd6, 0}}, - {{0, 0xfff76178, 0x002c60f0, 0}}, {{0, 0xfff74865, 0x002ce20a, 0}}, - {{0, 0xfff72f52, 0x002d6324, 0}}, {{0, 0xfff7163f, 0x002de43e, 0}}, - {{0, 0xfff6fd2c, 0x002e6558, 0}}, {{0, 0xfff6e419, 0x002ee672, 0}}, - {{0, 0xfff6cb06, 0x002f678c, 0}}, {{0, 0xfff6b1f3, 0x002fe8a6, 0}}, - {{0, 0xfff698e0, 0x003069c0, 0}}, {{0, 0xfff67fcd, 0x0030eada, 0}}, - {{0, 0xfff666ba, 0x00316bf4, 0}}, {{0, 0xfff64da7, 0x0031ed0e, 0}}, - {{0, 0xfff63494, 0x00326e28, 0}}, {{0, 0xfff61b81, 0x0032ef42, 0}}, - {{0, 0xfff6026e, 0x0033705c, 0}}, {{0, 0xfff5e95b, 0x0033f176, 0}}, - {{0, 0xfff5d048, 0x00347290, 0}}, {{0, 0xfff5b735, 0x0034f3aa, 0}}, - {{0, 0xfff59e22, 0x003574c4, 0}}, {{0, 0xfff5850f, 0x0035f5de, 0}}, - {{0, 0xfff56bfc, 0x003676f8, 0}}, {{0, 0xfff552e9, 0x0036f812, 0}}, - {{0, 0xfff539d6, 0x0037792c, 0}}, {{0, 0xfff520c3, 0x0037fa46, 0}}, - {{0, 0xfff507b0, 0x00387b60, 0}}, {{0, 0xfff4ee9d, 0x0038fc7a, 0}}, - {{0, 0xfff4d58a, 0x00397d94, 0}}, {{0, 0xfff4bc77, 0x0039feae, 0}}, - {{0, 0xfff4a364, 0x003a7fc8, 0}}, {{0, 0xfff48a51, 0x003b00e2, 0}}, - {{0, 0xfff4713e, 0x003b81fc, 0}}, {{0, 0xfff4582b, 0x003c0316, 0}}, - {{0, 0xfff43f18, 0x003c8430, 0}}, {{0, 0xfff42605, 0x003d054a, 0}}, - {{0, 0xfff40cf2, 0x003d8664, 0}}, {{0, 0xfff3f3df, 0x003e077e, 0}}, - {{0, 0xfff3dacc, 0x003e8898, 0}}, {{0, 0xfff3c1b9, 0x003f09b2, 0}}, - {{0, 0xfff3a8a6, 0x003f8acc, 0}}, {{0, 0xfff38f93, 0x00400be6, 0}} -}; - -static VP8kCstSSE2 VP8kVtoRGBA[256] = { - {{0xffcced80, 0x001a0400, 0, 0}}, {{0xffcd53a5, 0x0019cff8, 0, 0}}, - {{0xffcdb9ca, 0x00199bf0, 0, 0}}, {{0xffce1fef, 0x001967e8, 0, 0}}, - {{0xffce8614, 0x001933e0, 0, 0}}, {{0xffceec39, 0x0018ffd8, 0, 0}}, - {{0xffcf525e, 0x0018cbd0, 0, 0}}, {{0xffcfb883, 0x001897c8, 0, 0}}, - {{0xffd01ea8, 0x001863c0, 0, 0}}, {{0xffd084cd, 0x00182fb8, 0, 0}}, - {{0xffd0eaf2, 0x0017fbb0, 0, 0}}, {{0xffd15117, 0x0017c7a8, 0, 0}}, - {{0xffd1b73c, 0x001793a0, 0, 0}}, {{0xffd21d61, 0x00175f98, 0, 0}}, - {{0xffd28386, 0x00172b90, 0, 0}}, {{0xffd2e9ab, 0x0016f788, 0, 0}}, - {{0xffd34fd0, 0x0016c380, 0, 0}}, {{0xffd3b5f5, 0x00168f78, 0, 0}}, - {{0xffd41c1a, 0x00165b70, 0, 0}}, {{0xffd4823f, 0x00162768, 0, 0}}, - {{0xffd4e864, 0x0015f360, 0, 0}}, {{0xffd54e89, 0x0015bf58, 0, 0}}, - {{0xffd5b4ae, 0x00158b50, 0, 0}}, {{0xffd61ad3, 0x00155748, 0, 0}}, - {{0xffd680f8, 0x00152340, 0, 0}}, {{0xffd6e71d, 0x0014ef38, 0, 0}}, - {{0xffd74d42, 0x0014bb30, 0, 0}}, {{0xffd7b367, 0x00148728, 0, 0}}, - {{0xffd8198c, 0x00145320, 0, 0}}, {{0xffd87fb1, 0x00141f18, 0, 0}}, - {{0xffd8e5d6, 0x0013eb10, 0, 0}}, {{0xffd94bfb, 0x0013b708, 0, 0}}, - {{0xffd9b220, 0x00138300, 0, 0}}, {{0xffda1845, 0x00134ef8, 0, 0}}, - {{0xffda7e6a, 0x00131af0, 0, 0}}, {{0xffdae48f, 0x0012e6e8, 0, 0}}, - {{0xffdb4ab4, 0x0012b2e0, 0, 0}}, {{0xffdbb0d9, 0x00127ed8, 0, 0}}, - {{0xffdc16fe, 0x00124ad0, 0, 0}}, {{0xffdc7d23, 0x001216c8, 0, 0}}, - {{0xffdce348, 0x0011e2c0, 0, 0}}, {{0xffdd496d, 0x0011aeb8, 0, 0}}, - {{0xffddaf92, 0x00117ab0, 0, 0}}, {{0xffde15b7, 0x001146a8, 0, 0}}, - {{0xffde7bdc, 0x001112a0, 0, 0}}, {{0xffdee201, 0x0010de98, 0, 0}}, - {{0xffdf4826, 0x0010aa90, 0, 0}}, {{0xffdfae4b, 0x00107688, 0, 0}}, - {{0xffe01470, 0x00104280, 0, 0}}, {{0xffe07a95, 0x00100e78, 0, 0}}, - {{0xffe0e0ba, 0x000fda70, 0, 0}}, {{0xffe146df, 0x000fa668, 0, 0}}, - {{0xffe1ad04, 0x000f7260, 0, 0}}, {{0xffe21329, 0x000f3e58, 0, 0}}, - {{0xffe2794e, 0x000f0a50, 0, 0}}, {{0xffe2df73, 0x000ed648, 0, 0}}, - {{0xffe34598, 0x000ea240, 0, 0}}, {{0xffe3abbd, 0x000e6e38, 0, 0}}, - {{0xffe411e2, 0x000e3a30, 0, 0}}, {{0xffe47807, 0x000e0628, 0, 0}}, - {{0xffe4de2c, 0x000dd220, 0, 0}}, {{0xffe54451, 0x000d9e18, 0, 0}}, - {{0xffe5aa76, 0x000d6a10, 0, 0}}, {{0xffe6109b, 0x000d3608, 0, 0}}, - {{0xffe676c0, 0x000d0200, 0, 0}}, {{0xffe6dce5, 0x000ccdf8, 0, 0}}, - {{0xffe7430a, 0x000c99f0, 0, 0}}, {{0xffe7a92f, 0x000c65e8, 0, 0}}, - {{0xffe80f54, 0x000c31e0, 0, 0}}, {{0xffe87579, 0x000bfdd8, 0, 0}}, - {{0xffe8db9e, 0x000bc9d0, 0, 0}}, {{0xffe941c3, 0x000b95c8, 0, 0}}, - {{0xffe9a7e8, 0x000b61c0, 0, 0}}, {{0xffea0e0d, 0x000b2db8, 0, 0}}, - {{0xffea7432, 0x000af9b0, 0, 0}}, {{0xffeada57, 0x000ac5a8, 0, 0}}, - {{0xffeb407c, 0x000a91a0, 0, 0}}, {{0xffeba6a1, 0x000a5d98, 0, 0}}, - {{0xffec0cc6, 0x000a2990, 0, 0}}, {{0xffec72eb, 0x0009f588, 0, 0}}, - {{0xffecd910, 0x0009c180, 0, 0}}, {{0xffed3f35, 0x00098d78, 0, 0}}, - {{0xffeda55a, 0x00095970, 0, 0}}, {{0xffee0b7f, 0x00092568, 0, 0}}, - {{0xffee71a4, 0x0008f160, 0, 0}}, {{0xffeed7c9, 0x0008bd58, 0, 0}}, - {{0xffef3dee, 0x00088950, 0, 0}}, {{0xffefa413, 0x00085548, 0, 0}}, - {{0xfff00a38, 0x00082140, 0, 0}}, {{0xfff0705d, 0x0007ed38, 0, 0}}, - {{0xfff0d682, 0x0007b930, 0, 0}}, {{0xfff13ca7, 0x00078528, 0, 0}}, - {{0xfff1a2cc, 0x00075120, 0, 0}}, {{0xfff208f1, 0x00071d18, 0, 0}}, - {{0xfff26f16, 0x0006e910, 0, 0}}, {{0xfff2d53b, 0x0006b508, 0, 0}}, - {{0xfff33b60, 0x00068100, 0, 0}}, {{0xfff3a185, 0x00064cf8, 0, 0}}, - {{0xfff407aa, 0x000618f0, 0, 0}}, {{0xfff46dcf, 0x0005e4e8, 0, 0}}, - {{0xfff4d3f4, 0x0005b0e0, 0, 0}}, {{0xfff53a19, 0x00057cd8, 0, 0}}, - {{0xfff5a03e, 0x000548d0, 0, 0}}, {{0xfff60663, 0x000514c8, 0, 0}}, - {{0xfff66c88, 0x0004e0c0, 0, 0}}, {{0xfff6d2ad, 0x0004acb8, 0, 0}}, - {{0xfff738d2, 0x000478b0, 0, 0}}, {{0xfff79ef7, 0x000444a8, 0, 0}}, - {{0xfff8051c, 0x000410a0, 0, 0}}, {{0xfff86b41, 0x0003dc98, 0, 0}}, - {{0xfff8d166, 0x0003a890, 0, 0}}, {{0xfff9378b, 0x00037488, 0, 0}}, - {{0xfff99db0, 0x00034080, 0, 0}}, {{0xfffa03d5, 0x00030c78, 0, 0}}, - {{0xfffa69fa, 0x0002d870, 0, 0}}, {{0xfffad01f, 0x0002a468, 0, 0}}, - {{0xfffb3644, 0x00027060, 0, 0}}, {{0xfffb9c69, 0x00023c58, 0, 0}}, - {{0xfffc028e, 0x00020850, 0, 0}}, {{0xfffc68b3, 0x0001d448, 0, 0}}, - {{0xfffcced8, 0x0001a040, 0, 0}}, {{0xfffd34fd, 0x00016c38, 0, 0}}, - {{0xfffd9b22, 0x00013830, 0, 0}}, {{0xfffe0147, 0x00010428, 0, 0}}, - {{0xfffe676c, 0x0000d020, 0, 0}}, {{0xfffecd91, 0x00009c18, 0, 0}}, - {{0xffff33b6, 0x00006810, 0, 0}}, {{0xffff99db, 0x00003408, 0, 0}}, - {{0x00000000, 0x00000000, 0, 0}}, {{0x00006625, 0xffffcbf8, 0, 0}}, - {{0x0000cc4a, 0xffff97f0, 0, 0}}, {{0x0001326f, 0xffff63e8, 0, 0}}, - {{0x00019894, 0xffff2fe0, 0, 0}}, {{0x0001feb9, 0xfffefbd8, 0, 0}}, - {{0x000264de, 0xfffec7d0, 0, 0}}, {{0x0002cb03, 0xfffe93c8, 0, 0}}, - {{0x00033128, 0xfffe5fc0, 0, 0}}, {{0x0003974d, 0xfffe2bb8, 0, 0}}, - {{0x0003fd72, 0xfffdf7b0, 0, 0}}, {{0x00046397, 0xfffdc3a8, 0, 0}}, - {{0x0004c9bc, 0xfffd8fa0, 0, 0}}, {{0x00052fe1, 0xfffd5b98, 0, 0}}, - {{0x00059606, 0xfffd2790, 0, 0}}, {{0x0005fc2b, 0xfffcf388, 0, 0}}, - {{0x00066250, 0xfffcbf80, 0, 0}}, {{0x0006c875, 0xfffc8b78, 0, 0}}, - {{0x00072e9a, 0xfffc5770, 0, 0}}, {{0x000794bf, 0xfffc2368, 0, 0}}, - {{0x0007fae4, 0xfffbef60, 0, 0}}, {{0x00086109, 0xfffbbb58, 0, 0}}, - {{0x0008c72e, 0xfffb8750, 0, 0}}, {{0x00092d53, 0xfffb5348, 0, 0}}, - {{0x00099378, 0xfffb1f40, 0, 0}}, {{0x0009f99d, 0xfffaeb38, 0, 0}}, - {{0x000a5fc2, 0xfffab730, 0, 0}}, {{0x000ac5e7, 0xfffa8328, 0, 0}}, - {{0x000b2c0c, 0xfffa4f20, 0, 0}}, {{0x000b9231, 0xfffa1b18, 0, 0}}, - {{0x000bf856, 0xfff9e710, 0, 0}}, {{0x000c5e7b, 0xfff9b308, 0, 0}}, - {{0x000cc4a0, 0xfff97f00, 0, 0}}, {{0x000d2ac5, 0xfff94af8, 0, 0}}, - {{0x000d90ea, 0xfff916f0, 0, 0}}, {{0x000df70f, 0xfff8e2e8, 0, 0}}, - {{0x000e5d34, 0xfff8aee0, 0, 0}}, {{0x000ec359, 0xfff87ad8, 0, 0}}, - {{0x000f297e, 0xfff846d0, 0, 0}}, {{0x000f8fa3, 0xfff812c8, 0, 0}}, - {{0x000ff5c8, 0xfff7dec0, 0, 0}}, {{0x00105bed, 0xfff7aab8, 0, 0}}, - {{0x0010c212, 0xfff776b0, 0, 0}}, {{0x00112837, 0xfff742a8, 0, 0}}, - {{0x00118e5c, 0xfff70ea0, 0, 0}}, {{0x0011f481, 0xfff6da98, 0, 0}}, - {{0x00125aa6, 0xfff6a690, 0, 0}}, {{0x0012c0cb, 0xfff67288, 0, 0}}, - {{0x001326f0, 0xfff63e80, 0, 0}}, {{0x00138d15, 0xfff60a78, 0, 0}}, - {{0x0013f33a, 0xfff5d670, 0, 0}}, {{0x0014595f, 0xfff5a268, 0, 0}}, - {{0x0014bf84, 0xfff56e60, 0, 0}}, {{0x001525a9, 0xfff53a58, 0, 0}}, - {{0x00158bce, 0xfff50650, 0, 0}}, {{0x0015f1f3, 0xfff4d248, 0, 0}}, - {{0x00165818, 0xfff49e40, 0, 0}}, {{0x0016be3d, 0xfff46a38, 0, 0}}, - {{0x00172462, 0xfff43630, 0, 0}}, {{0x00178a87, 0xfff40228, 0, 0}}, - {{0x0017f0ac, 0xfff3ce20, 0, 0}}, {{0x001856d1, 0xfff39a18, 0, 0}}, - {{0x0018bcf6, 0xfff36610, 0, 0}}, {{0x0019231b, 0xfff33208, 0, 0}}, - {{0x00198940, 0xfff2fe00, 0, 0}}, {{0x0019ef65, 0xfff2c9f8, 0, 0}}, - {{0x001a558a, 0xfff295f0, 0, 0}}, {{0x001abbaf, 0xfff261e8, 0, 0}}, - {{0x001b21d4, 0xfff22de0, 0, 0}}, {{0x001b87f9, 0xfff1f9d8, 0, 0}}, - {{0x001bee1e, 0xfff1c5d0, 0, 0}}, {{0x001c5443, 0xfff191c8, 0, 0}}, - {{0x001cba68, 0xfff15dc0, 0, 0}}, {{0x001d208d, 0xfff129b8, 0, 0}}, - {{0x001d86b2, 0xfff0f5b0, 0, 0}}, {{0x001decd7, 0xfff0c1a8, 0, 0}}, - {{0x001e52fc, 0xfff08da0, 0, 0}}, {{0x001eb921, 0xfff05998, 0, 0}}, - {{0x001f1f46, 0xfff02590, 0, 0}}, {{0x001f856b, 0xffeff188, 0, 0}}, - {{0x001feb90, 0xffefbd80, 0, 0}}, {{0x002051b5, 0xffef8978, 0, 0}}, - {{0x0020b7da, 0xffef5570, 0, 0}}, {{0x00211dff, 0xffef2168, 0, 0}}, - {{0x00218424, 0xffeeed60, 0, 0}}, {{0x0021ea49, 0xffeeb958, 0, 0}}, - {{0x0022506e, 0xffee8550, 0, 0}}, {{0x0022b693, 0xffee5148, 0, 0}}, - {{0x00231cb8, 0xffee1d40, 0, 0}}, {{0x002382dd, 0xffede938, 0, 0}}, - {{0x0023e902, 0xffedb530, 0, 0}}, {{0x00244f27, 0xffed8128, 0, 0}}, - {{0x0024b54c, 0xffed4d20, 0, 0}}, {{0x00251b71, 0xffed1918, 0, 0}}, - {{0x00258196, 0xffece510, 0, 0}}, {{0x0025e7bb, 0xffecb108, 0, 0}}, - {{0x00264de0, 0xffec7d00, 0, 0}}, {{0x0026b405, 0xffec48f8, 0, 0}}, - {{0x00271a2a, 0xffec14f0, 0, 0}}, {{0x0027804f, 0xffebe0e8, 0, 0}}, - {{0x0027e674, 0xffebace0, 0, 0}}, {{0x00284c99, 0xffeb78d8, 0, 0}}, - {{0x0028b2be, 0xffeb44d0, 0, 0}}, {{0x002918e3, 0xffeb10c8, 0, 0}}, - {{0x00297f08, 0xffeadcc0, 0, 0}}, {{0x0029e52d, 0xffeaa8b8, 0, 0}}, - {{0x002a4b52, 0xffea74b0, 0, 0}}, {{0x002ab177, 0xffea40a8, 0, 0}}, - {{0x002b179c, 0xffea0ca0, 0, 0}}, {{0x002b7dc1, 0xffe9d898, 0, 0}}, - {{0x002be3e6, 0xffe9a490, 0, 0}}, {{0x002c4a0b, 0xffe97088, 0, 0}}, - {{0x002cb030, 0xffe93c80, 0, 0}}, {{0x002d1655, 0xffe90878, 0, 0}}, - {{0x002d7c7a, 0xffe8d470, 0, 0}}, {{0x002de29f, 0xffe8a068, 0, 0}}, - {{0x002e48c4, 0xffe86c60, 0, 0}}, {{0x002eaee9, 0xffe83858, 0, 0}}, - {{0x002f150e, 0xffe80450, 0, 0}}, {{0x002f7b33, 0xffe7d048, 0, 0}}, - {{0x002fe158, 0xffe79c40, 0, 0}}, {{0x0030477d, 0xffe76838, 0, 0}}, - {{0x0030ada2, 0xffe73430, 0, 0}}, {{0x003113c7, 0xffe70028, 0, 0}}, - {{0x003179ec, 0xffe6cc20, 0, 0}}, {{0x0031e011, 0xffe69818, 0, 0}}, - {{0x00324636, 0xffe66410, 0, 0}}, {{0x0032ac5b, 0xffe63008, 0, 0}} -}; diff --git a/drivers/webp/enc/alpha.c b/drivers/webp/enc/alpha.c deleted file mode 100644 index 464df4db09..0000000000 --- a/drivers/webp/enc/alpha.c +++ /dev/null @@ -1,433 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Alpha-plane compression. -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> -#include <stdlib.h> - -#include "./vp8enci.h" -#include "../dsp/dsp.h" -#include "../utils/filters.h" -#include "../utils/quant_levels.h" -#include "../utils/utils.h" -#include "webp/format_constants.h" - -// ----------------------------------------------------------------------------- -// Encodes the given alpha data via specified compression method 'method'. -// The pre-processing (quantization) is performed if 'quality' is less than 100. -// For such cases, the encoding is lossy. The valid range is [0, 100] for -// 'quality' and [0, 1] for 'method': -// 'method = 0' - No compression; -// 'method = 1' - Use lossless coder on the alpha plane only -// 'filter' values [0, 4] correspond to prediction modes none, horizontal, -// vertical & gradient filters. The prediction mode 4 will try all the -// prediction modes 0 to 3 and pick the best one. -// 'effort_level': specifies how much effort must be spent to try and reduce -// the compressed output size. In range 0 (quick) to 6 (slow). -// -// 'output' corresponds to the buffer containing compressed alpha data. -// This buffer is allocated by this method and caller should call -// WebPSafeFree(*output) when done. -// 'output_size' corresponds to size of this compressed alpha buffer. -// -// Returns 1 on successfully encoding the alpha and -// 0 if either: -// invalid quality or method, or -// memory allocation for the compressed data fails. - -#include "../enc/vp8li.h" - -static int EncodeLossless(const uint8_t* const data, int width, int height, - int effort_level, // in [0..6] range - VP8LBitWriter* const bw, - WebPAuxStats* const stats) { - int ok = 0; - WebPConfig config; - WebPPicture picture; - - WebPPictureInit(&picture); - picture.width = width; - picture.height = height; - picture.use_argb = 1; - picture.stats = stats; - if (!WebPPictureAlloc(&picture)) return 0; - - // Transfer the alpha values to the green channel. - WebPDispatchAlphaToGreen(data, width, picture.width, picture.height, - picture.argb, picture.argb_stride); - - WebPConfigInit(&config); - config.lossless = 1; - // Enable exact, or it would alter RGB values of transparent alpha, which is - // normally OK but not here since we are not encoding the input image but an - // internal encoding-related image containing necessary exact information in - // RGB channels. - config.exact = 1; - config.method = effort_level; // impact is very small - // Set a low default quality for encoding alpha. Ensure that Alpha quality at - // lower methods (3 and below) is less than the threshold for triggering - // costly 'BackwardReferencesTraceBackwards'. - config.quality = 8.f * effort_level; - assert(config.quality >= 0 && config.quality <= 100.f); - - // TODO(urvang): Temporary fix to avoid generating images that trigger - // a decoder bug related to alpha with color cache. - // See: https://code.google.com/p/webp/issues/detail?id=239 - // Need to re-enable this later. - ok = (VP8LEncodeStream(&config, &picture, bw, 0 /*use_cache*/) == VP8_ENC_OK); - WebPPictureFree(&picture); - ok = ok && !bw->error_; - if (!ok) { - VP8LBitWriterWipeOut(bw); - return 0; - } - return 1; -} - -// ----------------------------------------------------------------------------- - -// Small struct to hold the result of a filter mode compression attempt. -typedef struct { - size_t score; - VP8BitWriter bw; - WebPAuxStats stats; -} FilterTrial; - -// This function always returns an initialized 'bw' object, even upon error. -static int EncodeAlphaInternal(const uint8_t* const data, int width, int height, - int method, int filter, int reduce_levels, - int effort_level, // in [0..6] range - uint8_t* const tmp_alpha, - FilterTrial* result) { - int ok = 0; - const uint8_t* alpha_src; - WebPFilterFunc filter_func; - uint8_t header; - const size_t data_size = width * height; - const uint8_t* output = NULL; - size_t output_size = 0; - VP8LBitWriter tmp_bw; - - assert((uint64_t)data_size == (uint64_t)width * height); // as per spec - assert(filter >= 0 && filter < WEBP_FILTER_LAST); - assert(method >= ALPHA_NO_COMPRESSION); - assert(method <= ALPHA_LOSSLESS_COMPRESSION); - assert(sizeof(header) == ALPHA_HEADER_LEN); - - filter_func = WebPFilters[filter]; - if (filter_func != NULL) { - filter_func(data, width, height, width, tmp_alpha); - alpha_src = tmp_alpha; - } else { - alpha_src = data; - } - - if (method != ALPHA_NO_COMPRESSION) { - ok = VP8LBitWriterInit(&tmp_bw, data_size >> 3); - ok = ok && EncodeLossless(alpha_src, width, height, effort_level, - &tmp_bw, &result->stats); - if (ok) { - output = VP8LBitWriterFinish(&tmp_bw); - output_size = VP8LBitWriterNumBytes(&tmp_bw); - if (output_size > data_size) { - // compressed size is larger than source! Revert to uncompressed mode. - method = ALPHA_NO_COMPRESSION; - VP8LBitWriterWipeOut(&tmp_bw); - } - } else { - VP8LBitWriterWipeOut(&tmp_bw); - return 0; - } - } - - if (method == ALPHA_NO_COMPRESSION) { - output = alpha_src; - output_size = data_size; - ok = 1; - } - - // Emit final result. - header = method | (filter << 2); - if (reduce_levels) header |= ALPHA_PREPROCESSED_LEVELS << 4; - - VP8BitWriterInit(&result->bw, ALPHA_HEADER_LEN + output_size); - ok = ok && VP8BitWriterAppend(&result->bw, &header, ALPHA_HEADER_LEN); - ok = ok && VP8BitWriterAppend(&result->bw, output, output_size); - - if (method != ALPHA_NO_COMPRESSION) { - VP8LBitWriterWipeOut(&tmp_bw); - } - ok = ok && !result->bw.error_; - result->score = VP8BitWriterSize(&result->bw); - return ok; -} - -// ----------------------------------------------------------------------------- - -static int GetNumColors(const uint8_t* data, int width, int height, - int stride) { - int j; - int colors = 0; - uint8_t color[256] = { 0 }; - - for (j = 0; j < height; ++j) { - int i; - const uint8_t* const p = data + j * stride; - for (i = 0; i < width; ++i) { - color[p[i]] = 1; - } - } - for (j = 0; j < 256; ++j) { - if (color[j] > 0) ++colors; - } - return colors; -} - -#define FILTER_TRY_NONE (1 << WEBP_FILTER_NONE) -#define FILTER_TRY_ALL ((1 << WEBP_FILTER_LAST) - 1) - -// Given the input 'filter' option, return an OR'd bit-set of filters to try. -static uint32_t GetFilterMap(const uint8_t* alpha, int width, int height, - int filter, int effort_level) { - uint32_t bit_map = 0U; - if (filter == WEBP_FILTER_FAST) { - // Quick estimate of the best candidate. - int try_filter_none = (effort_level > 3); - const int kMinColorsForFilterNone = 16; - const int kMaxColorsForFilterNone = 192; - const int num_colors = GetNumColors(alpha, width, height, width); - // For low number of colors, NONE yields better compression. - filter = (num_colors <= kMinColorsForFilterNone) - ? WEBP_FILTER_NONE - : WebPEstimateBestFilter(alpha, width, height, width); - bit_map |= 1 << filter; - // For large number of colors, try FILTER_NONE in addition to the best - // filter as well. - if (try_filter_none || num_colors > kMaxColorsForFilterNone) { - bit_map |= FILTER_TRY_NONE; - } - } else if (filter == WEBP_FILTER_NONE) { - bit_map = FILTER_TRY_NONE; - } else { // WEBP_FILTER_BEST -> try all - bit_map = FILTER_TRY_ALL; - } - return bit_map; -} - -static void InitFilterTrial(FilterTrial* const score) { - score->score = (size_t)~0U; - VP8BitWriterInit(&score->bw, 0); -} - -static int ApplyFiltersAndEncode(const uint8_t* alpha, int width, int height, - size_t data_size, int method, int filter, - int reduce_levels, int effort_level, - uint8_t** const output, - size_t* const output_size, - WebPAuxStats* const stats) { - int ok = 1; - FilterTrial best; - uint32_t try_map = - GetFilterMap(alpha, width, height, filter, effort_level); - InitFilterTrial(&best); - - if (try_map != FILTER_TRY_NONE) { - uint8_t* filtered_alpha = (uint8_t*)WebPSafeMalloc(1ULL, data_size); - if (filtered_alpha == NULL) return 0; - - for (filter = WEBP_FILTER_NONE; ok && try_map; ++filter, try_map >>= 1) { - if (try_map & 1) { - FilterTrial trial; - ok = EncodeAlphaInternal(alpha, width, height, method, filter, - reduce_levels, effort_level, filtered_alpha, - &trial); - if (ok && trial.score < best.score) { - VP8BitWriterWipeOut(&best.bw); - best = trial; - } else { - VP8BitWriterWipeOut(&trial.bw); - } - } - } - WebPSafeFree(filtered_alpha); - } else { - ok = EncodeAlphaInternal(alpha, width, height, method, WEBP_FILTER_NONE, - reduce_levels, effort_level, NULL, &best); - } - if (ok) { - if (stats != NULL) { - stats->lossless_features = best.stats.lossless_features; - stats->histogram_bits = best.stats.histogram_bits; - stats->transform_bits = best.stats.transform_bits; - stats->cache_bits = best.stats.cache_bits; - stats->palette_size = best.stats.palette_size; - stats->lossless_size = best.stats.lossless_size; - stats->lossless_hdr_size = best.stats.lossless_hdr_size; - stats->lossless_data_size = best.stats.lossless_data_size; - } - *output_size = VP8BitWriterSize(&best.bw); - *output = VP8BitWriterBuf(&best.bw); - } else { - VP8BitWriterWipeOut(&best.bw); - } - return ok; -} - -static int EncodeAlpha(VP8Encoder* const enc, - int quality, int method, int filter, - int effort_level, - uint8_t** const output, size_t* const output_size) { - const WebPPicture* const pic = enc->pic_; - const int width = pic->width; - const int height = pic->height; - - uint8_t* quant_alpha = NULL; - const size_t data_size = width * height; - uint64_t sse = 0; - int ok = 1; - const int reduce_levels = (quality < 100); - - // quick sanity checks - assert((uint64_t)data_size == (uint64_t)width * height); // as per spec - assert(enc != NULL && pic != NULL && pic->a != NULL); - assert(output != NULL && output_size != NULL); - assert(width > 0 && height > 0); - assert(pic->a_stride >= width); - assert(filter >= WEBP_FILTER_NONE && filter <= WEBP_FILTER_FAST); - - if (quality < 0 || quality > 100) { - return 0; - } - - if (method < ALPHA_NO_COMPRESSION || method > ALPHA_LOSSLESS_COMPRESSION) { - return 0; - } - - if (method == ALPHA_NO_COMPRESSION) { - // Don't filter, as filtering will make no impact on compressed size. - filter = WEBP_FILTER_NONE; - } - - quant_alpha = (uint8_t*)WebPSafeMalloc(1ULL, data_size); - if (quant_alpha == NULL) { - return 0; - } - - // Extract alpha data (width x height) from raw_data (stride x height). - WebPCopyPlane(pic->a, pic->a_stride, quant_alpha, width, width, height); - - if (reduce_levels) { // No Quantization required for 'quality = 100'. - // 16 alpha levels gives quite a low MSE w.r.t original alpha plane hence - // mapped to moderate quality 70. Hence Quality:[0, 70] -> Levels:[2, 16] - // and Quality:]70, 100] -> Levels:]16, 256]. - const int alpha_levels = (quality <= 70) ? (2 + quality / 5) - : (16 + (quality - 70) * 8); - ok = QuantizeLevels(quant_alpha, width, height, alpha_levels, &sse); - } - - if (ok) { - VP8FiltersInit(); - ok = ApplyFiltersAndEncode(quant_alpha, width, height, data_size, method, - filter, reduce_levels, effort_level, output, - output_size, pic->stats); - if (pic->stats != NULL) { // need stats? - pic->stats->coded_size += (int)(*output_size); - enc->sse_[3] = sse; - } - } - - WebPSafeFree(quant_alpha); - return ok; -} - -//------------------------------------------------------------------------------ -// Main calls - -static int CompressAlphaJob(VP8Encoder* const enc, void* dummy) { - const WebPConfig* config = enc->config_; - uint8_t* alpha_data = NULL; - size_t alpha_size = 0; - const int effort_level = config->method; // maps to [0..6] - const WEBP_FILTER_TYPE filter = - (config->alpha_filtering == 0) ? WEBP_FILTER_NONE : - (config->alpha_filtering == 1) ? WEBP_FILTER_FAST : - WEBP_FILTER_BEST; - if (!EncodeAlpha(enc, config->alpha_quality, config->alpha_compression, - filter, effort_level, &alpha_data, &alpha_size)) { - return 0; - } - if (alpha_size != (uint32_t)alpha_size) { // Sanity check. - WebPSafeFree(alpha_data); - return 0; - } - enc->alpha_data_size_ = (uint32_t)alpha_size; - enc->alpha_data_ = alpha_data; - (void)dummy; - return 1; -} - -void VP8EncInitAlpha(VP8Encoder* const enc) { - WebPInitAlphaProcessing(); - enc->has_alpha_ = WebPPictureHasTransparency(enc->pic_); - enc->alpha_data_ = NULL; - enc->alpha_data_size_ = 0; - if (enc->thread_level_ > 0) { - WebPWorker* const worker = &enc->alpha_worker_; - WebPGetWorkerInterface()->Init(worker); - worker->data1 = enc; - worker->data2 = NULL; - worker->hook = (WebPWorkerHook)CompressAlphaJob; - } -} - -int VP8EncStartAlpha(VP8Encoder* const enc) { - if (enc->has_alpha_) { - if (enc->thread_level_ > 0) { - WebPWorker* const worker = &enc->alpha_worker_; - // Makes sure worker is good to go. - if (!WebPGetWorkerInterface()->Reset(worker)) { - return 0; - } - WebPGetWorkerInterface()->Launch(worker); - return 1; - } else { - return CompressAlphaJob(enc, NULL); // just do the job right away - } - } - return 1; -} - -int VP8EncFinishAlpha(VP8Encoder* const enc) { - if (enc->has_alpha_) { - if (enc->thread_level_ > 0) { - WebPWorker* const worker = &enc->alpha_worker_; - if (!WebPGetWorkerInterface()->Sync(worker)) return 0; // error - } - } - return WebPReportProgress(enc->pic_, enc->percent_ + 20, &enc->percent_); -} - -int VP8EncDeleteAlpha(VP8Encoder* const enc) { - int ok = 1; - if (enc->thread_level_ > 0) { - WebPWorker* const worker = &enc->alpha_worker_; - // finish anything left in flight - ok = WebPGetWorkerInterface()->Sync(worker); - // still need to end the worker, even if !ok - WebPGetWorkerInterface()->End(worker); - } - WebPSafeFree(enc->alpha_data_); - enc->alpha_data_ = NULL; - enc->alpha_data_size_ = 0; - enc->has_alpha_ = 0; - return ok; -} diff --git a/drivers/webp/enc/analysis.c b/drivers/webp/enc/analysis.c deleted file mode 100644 index b55128fd48..0000000000 --- a/drivers/webp/enc/analysis.c +++ /dev/null @@ -1,501 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Macroblock analysis -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <stdlib.h> -#include <string.h> -#include <assert.h> - -#include "./vp8enci.h" -#include "./cost.h" -#include "../utils/utils.h" - -#define MAX_ITERS_K_MEANS 6 - -//------------------------------------------------------------------------------ -// Smooth the segment map by replacing isolated block by the majority of its -// neighbours. - -static void SmoothSegmentMap(VP8Encoder* const enc) { - int n, x, y; - const int w = enc->mb_w_; - const int h = enc->mb_h_; - const int majority_cnt_3_x_3_grid = 5; - uint8_t* const tmp = (uint8_t*)WebPSafeMalloc(w * h, sizeof(*tmp)); - assert((uint64_t)(w * h) == (uint64_t)w * h); // no overflow, as per spec - - if (tmp == NULL) return; - for (y = 1; y < h - 1; ++y) { - for (x = 1; x < w - 1; ++x) { - int cnt[NUM_MB_SEGMENTS] = { 0 }; - const VP8MBInfo* const mb = &enc->mb_info_[x + w * y]; - int majority_seg = mb->segment_; - // Check the 8 neighbouring segment values. - cnt[mb[-w - 1].segment_]++; // top-left - cnt[mb[-w + 0].segment_]++; // top - cnt[mb[-w + 1].segment_]++; // top-right - cnt[mb[ - 1].segment_]++; // left - cnt[mb[ + 1].segment_]++; // right - cnt[mb[ w - 1].segment_]++; // bottom-left - cnt[mb[ w + 0].segment_]++; // bottom - cnt[mb[ w + 1].segment_]++; // bottom-right - for (n = 0; n < NUM_MB_SEGMENTS; ++n) { - if (cnt[n] >= majority_cnt_3_x_3_grid) { - majority_seg = n; - break; - } - } - tmp[x + y * w] = majority_seg; - } - } - for (y = 1; y < h - 1; ++y) { - for (x = 1; x < w - 1; ++x) { - VP8MBInfo* const mb = &enc->mb_info_[x + w * y]; - mb->segment_ = tmp[x + y * w]; - } - } - WebPSafeFree(tmp); -} - -//------------------------------------------------------------------------------ -// set segment susceptibility alpha_ / beta_ - -static WEBP_INLINE int clip(int v, int m, int M) { - return (v < m) ? m : (v > M) ? M : v; -} - -static void SetSegmentAlphas(VP8Encoder* const enc, - const int centers[NUM_MB_SEGMENTS], - int mid) { - const int nb = enc->segment_hdr_.num_segments_; - int min = centers[0], max = centers[0]; - int n; - - if (nb > 1) { - for (n = 0; n < nb; ++n) { - if (min > centers[n]) min = centers[n]; - if (max < centers[n]) max = centers[n]; - } - } - if (max == min) max = min + 1; - assert(mid <= max && mid >= min); - for (n = 0; n < nb; ++n) { - const int alpha = 255 * (centers[n] - mid) / (max - min); - const int beta = 255 * (centers[n] - min) / (max - min); - enc->dqm_[n].alpha_ = clip(alpha, -127, 127); - enc->dqm_[n].beta_ = clip(beta, 0, 255); - } -} - -//------------------------------------------------------------------------------ -// Compute susceptibility based on DCT-coeff histograms: -// the higher, the "easier" the macroblock is to compress. - -#define MAX_ALPHA 255 // 8b of precision for susceptibilities. -#define ALPHA_SCALE (2 * MAX_ALPHA) // scaling factor for alpha. -#define DEFAULT_ALPHA (-1) -#define IS_BETTER_ALPHA(alpha, best_alpha) ((alpha) > (best_alpha)) - -static int FinalAlphaValue(int alpha) { - alpha = MAX_ALPHA - alpha; - return clip(alpha, 0, MAX_ALPHA); -} - -static int GetAlpha(const VP8Histogram* const histo) { - // 'alpha' will later be clipped to [0..MAX_ALPHA] range, clamping outer - // values which happen to be mostly noise. This leaves the maximum precision - // for handling the useful small values which contribute most. - const int max_value = histo->max_value; - const int last_non_zero = histo->last_non_zero; - const int alpha = - (max_value > 1) ? ALPHA_SCALE * last_non_zero / max_value : 0; - return alpha; -} - -static void InitHistogram(VP8Histogram* const histo) { - histo->max_value = 0; - histo->last_non_zero = 1; -} - -static void MergeHistograms(const VP8Histogram* const in, - VP8Histogram* const out) { - if (in->max_value > out->max_value) { - out->max_value = in->max_value; - } - if (in->last_non_zero > out->last_non_zero) { - out->last_non_zero = in->last_non_zero; - } -} - -//------------------------------------------------------------------------------ -// Simplified k-Means, to assign Nb segments based on alpha-histogram - -static void AssignSegments(VP8Encoder* const enc, - const int alphas[MAX_ALPHA + 1]) { - // 'num_segments_' is previously validated and <= NUM_MB_SEGMENTS, but an - // explicit check is needed to avoid spurious warning about 'n + 1' exceeding - // array bounds of 'centers' with some compilers (noticed with gcc-4.9). - const int nb = (enc->segment_hdr_.num_segments_ < NUM_MB_SEGMENTS) ? - enc->segment_hdr_.num_segments_ : NUM_MB_SEGMENTS; - int centers[NUM_MB_SEGMENTS]; - int weighted_average = 0; - int map[MAX_ALPHA + 1]; - int a, n, k; - int min_a = 0, max_a = MAX_ALPHA, range_a; - // 'int' type is ok for histo, and won't overflow - int accum[NUM_MB_SEGMENTS], dist_accum[NUM_MB_SEGMENTS]; - - assert(nb >= 1); - assert(nb <= NUM_MB_SEGMENTS); - - // bracket the input - for (n = 0; n <= MAX_ALPHA && alphas[n] == 0; ++n) {} - min_a = n; - for (n = MAX_ALPHA; n > min_a && alphas[n] == 0; --n) {} - max_a = n; - range_a = max_a - min_a; - - // Spread initial centers evenly - for (k = 0, n = 1; k < nb; ++k, n += 2) { - assert(n < 2 * nb); - centers[k] = min_a + (n * range_a) / (2 * nb); - } - - for (k = 0; k < MAX_ITERS_K_MEANS; ++k) { // few iters are enough - int total_weight; - int displaced; - // Reset stats - for (n = 0; n < nb; ++n) { - accum[n] = 0; - dist_accum[n] = 0; - } - // Assign nearest center for each 'a' - n = 0; // track the nearest center for current 'a' - for (a = min_a; a <= max_a; ++a) { - if (alphas[a]) { - while (n + 1 < nb && abs(a - centers[n + 1]) < abs(a - centers[n])) { - n++; - } - map[a] = n; - // accumulate contribution into best centroid - dist_accum[n] += a * alphas[a]; - accum[n] += alphas[a]; - } - } - // All point are classified. Move the centroids to the - // center of their respective cloud. - displaced = 0; - weighted_average = 0; - total_weight = 0; - for (n = 0; n < nb; ++n) { - if (accum[n]) { - const int new_center = (dist_accum[n] + accum[n] / 2) / accum[n]; - displaced += abs(centers[n] - new_center); - centers[n] = new_center; - weighted_average += new_center * accum[n]; - total_weight += accum[n]; - } - } - weighted_average = (weighted_average + total_weight / 2) / total_weight; - if (displaced < 5) break; // no need to keep on looping... - } - - // Map each original value to the closest centroid - for (n = 0; n < enc->mb_w_ * enc->mb_h_; ++n) { - VP8MBInfo* const mb = &enc->mb_info_[n]; - const int alpha = mb->alpha_; - mb->segment_ = map[alpha]; - mb->alpha_ = centers[map[alpha]]; // for the record. - } - - if (nb > 1) { - const int smooth = (enc->config_->preprocessing & 1); - if (smooth) SmoothSegmentMap(enc); - } - - SetSegmentAlphas(enc, centers, weighted_average); // pick some alphas. -} - -//------------------------------------------------------------------------------ -// Macroblock analysis: collect histogram for each mode, deduce the maximal -// susceptibility and set best modes for this macroblock. -// Segment assignment is done later. - -// Number of modes to inspect for alpha_ evaluation. We don't need to test all -// the possible modes during the analysis phase: we risk falling into a local -// optimum, or be subject to boundary effect -#define MAX_INTRA16_MODE 2 -#define MAX_INTRA4_MODE 2 -#define MAX_UV_MODE 2 - -static int MBAnalyzeBestIntra16Mode(VP8EncIterator* const it) { - const int max_mode = MAX_INTRA16_MODE; - int mode; - int best_alpha = DEFAULT_ALPHA; - int best_mode = 0; - - VP8MakeLuma16Preds(it); - for (mode = 0; mode < max_mode; ++mode) { - VP8Histogram histo; - int alpha; - - InitHistogram(&histo); - VP8CollectHistogram(it->yuv_in_ + Y_OFF_ENC, - it->yuv_p_ + VP8I16ModeOffsets[mode], - 0, 16, &histo); - alpha = GetAlpha(&histo); - if (IS_BETTER_ALPHA(alpha, best_alpha)) { - best_alpha = alpha; - best_mode = mode; - } - } - VP8SetIntra16Mode(it, best_mode); - return best_alpha; -} - -static int MBAnalyzeBestIntra4Mode(VP8EncIterator* const it, - int best_alpha) { - uint8_t modes[16]; - const int max_mode = MAX_INTRA4_MODE; - int i4_alpha; - VP8Histogram total_histo; - int cur_histo = 0; - InitHistogram(&total_histo); - - VP8IteratorStartI4(it); - do { - int mode; - int best_mode_alpha = DEFAULT_ALPHA; - VP8Histogram histos[2]; - const uint8_t* const src = it->yuv_in_ + Y_OFF_ENC + VP8Scan[it->i4_]; - - VP8MakeIntra4Preds(it); - for (mode = 0; mode < max_mode; ++mode) { - int alpha; - - InitHistogram(&histos[cur_histo]); - VP8CollectHistogram(src, it->yuv_p_ + VP8I4ModeOffsets[mode], - 0, 1, &histos[cur_histo]); - alpha = GetAlpha(&histos[cur_histo]); - if (IS_BETTER_ALPHA(alpha, best_mode_alpha)) { - best_mode_alpha = alpha; - modes[it->i4_] = mode; - cur_histo ^= 1; // keep track of best histo so far. - } - } - // accumulate best histogram - MergeHistograms(&histos[cur_histo ^ 1], &total_histo); - // Note: we reuse the original samples for predictors - } while (VP8IteratorRotateI4(it, it->yuv_in_ + Y_OFF_ENC)); - - i4_alpha = GetAlpha(&total_histo); - if (IS_BETTER_ALPHA(i4_alpha, best_alpha)) { - VP8SetIntra4Mode(it, modes); - best_alpha = i4_alpha; - } - return best_alpha; -} - -static int MBAnalyzeBestUVMode(VP8EncIterator* const it) { - int best_alpha = DEFAULT_ALPHA; - int best_mode = 0; - const int max_mode = MAX_UV_MODE; - int mode; - - VP8MakeChroma8Preds(it); - for (mode = 0; mode < max_mode; ++mode) { - VP8Histogram histo; - int alpha; - InitHistogram(&histo); - VP8CollectHistogram(it->yuv_in_ + U_OFF_ENC, - it->yuv_p_ + VP8UVModeOffsets[mode], - 16, 16 + 4 + 4, &histo); - alpha = GetAlpha(&histo); - if (IS_BETTER_ALPHA(alpha, best_alpha)) { - best_alpha = alpha; - best_mode = mode; - } - } - VP8SetIntraUVMode(it, best_mode); - return best_alpha; -} - -static void MBAnalyze(VP8EncIterator* const it, - int alphas[MAX_ALPHA + 1], - int* const alpha, int* const uv_alpha) { - const VP8Encoder* const enc = it->enc_; - int best_alpha, best_uv_alpha; - - VP8SetIntra16Mode(it, 0); // default: Intra16, DC_PRED - VP8SetSkip(it, 0); // not skipped - VP8SetSegment(it, 0); // default segment, spec-wise. - - best_alpha = MBAnalyzeBestIntra16Mode(it); - if (enc->method_ >= 5) { - // We go and make a fast decision for intra4/intra16. - // It's usually not a good and definitive pick, but helps seeding the stats - // about level bit-cost. - // TODO(skal): improve criterion. - best_alpha = MBAnalyzeBestIntra4Mode(it, best_alpha); - } - best_uv_alpha = MBAnalyzeBestUVMode(it); - - // Final susceptibility mix - best_alpha = (3 * best_alpha + best_uv_alpha + 2) >> 2; - best_alpha = FinalAlphaValue(best_alpha); - alphas[best_alpha]++; - it->mb_->alpha_ = best_alpha; // for later remapping. - - // Accumulate for later complexity analysis. - *alpha += best_alpha; // mixed susceptibility (not just luma) - *uv_alpha += best_uv_alpha; -} - -static void DefaultMBInfo(VP8MBInfo* const mb) { - mb->type_ = 1; // I16x16 - mb->uv_mode_ = 0; - mb->skip_ = 0; // not skipped - mb->segment_ = 0; // default segment - mb->alpha_ = 0; -} - -//------------------------------------------------------------------------------ -// Main analysis loop: -// Collect all susceptibilities for each macroblock and record their -// distribution in alphas[]. Segments is assigned a-posteriori, based on -// this histogram. -// We also pick an intra16 prediction mode, which shouldn't be considered -// final except for fast-encode settings. We can also pick some intra4 modes -// and decide intra4/intra16, but that's usually almost always a bad choice at -// this stage. - -static void ResetAllMBInfo(VP8Encoder* const enc) { - int n; - for (n = 0; n < enc->mb_w_ * enc->mb_h_; ++n) { - DefaultMBInfo(&enc->mb_info_[n]); - } - // Default susceptibilities. - enc->dqm_[0].alpha_ = 0; - enc->dqm_[0].beta_ = 0; - // Note: we can't compute this alpha_ / uv_alpha_ -> set to default value. - enc->alpha_ = 0; - enc->uv_alpha_ = 0; - WebPReportProgress(enc->pic_, enc->percent_ + 20, &enc->percent_); -} - -// struct used to collect job result -typedef struct { - WebPWorker worker; - int alphas[MAX_ALPHA + 1]; - int alpha, uv_alpha; - VP8EncIterator it; - int delta_progress; -} SegmentJob; - -// main work call -static int DoSegmentsJob(SegmentJob* const job, VP8EncIterator* const it) { - int ok = 1; - if (!VP8IteratorIsDone(it)) { - uint8_t tmp[32 + WEBP_ALIGN_CST]; - uint8_t* const scratch = (uint8_t*)WEBP_ALIGN(tmp); - do { - // Let's pretend we have perfect lossless reconstruction. - VP8IteratorImport(it, scratch); - MBAnalyze(it, job->alphas, &job->alpha, &job->uv_alpha); - ok = VP8IteratorProgress(it, job->delta_progress); - } while (ok && VP8IteratorNext(it)); - } - return ok; -} - -static void MergeJobs(const SegmentJob* const src, SegmentJob* const dst) { - int i; - for (i = 0; i <= MAX_ALPHA; ++i) dst->alphas[i] += src->alphas[i]; - dst->alpha += src->alpha; - dst->uv_alpha += src->uv_alpha; -} - -// initialize the job struct with some TODOs -static void InitSegmentJob(VP8Encoder* const enc, SegmentJob* const job, - int start_row, int end_row) { - WebPGetWorkerInterface()->Init(&job->worker); - job->worker.data1 = job; - job->worker.data2 = &job->it; - job->worker.hook = (WebPWorkerHook)DoSegmentsJob; - VP8IteratorInit(enc, &job->it); - VP8IteratorSetRow(&job->it, start_row); - VP8IteratorSetCountDown(&job->it, (end_row - start_row) * enc->mb_w_); - memset(job->alphas, 0, sizeof(job->alphas)); - job->alpha = 0; - job->uv_alpha = 0; - // only one of both jobs can record the progress, since we don't - // expect the user's hook to be multi-thread safe - job->delta_progress = (start_row == 0) ? 20 : 0; -} - -// main entry point -int VP8EncAnalyze(VP8Encoder* const enc) { - int ok = 1; - const int do_segments = - enc->config_->emulate_jpeg_size || // We need the complexity evaluation. - (enc->segment_hdr_.num_segments_ > 1) || - (enc->method_ == 0); // for method 0, we need preds_[] to be filled. - if (do_segments) { - const int last_row = enc->mb_h_; - // We give a little more than a half work to the main thread. - const int split_row = (9 * last_row + 15) >> 4; - const int total_mb = last_row * enc->mb_w_; -#ifdef WEBP_USE_THREAD - const int kMinSplitRow = 2; // minimal rows needed for mt to be worth it - const int do_mt = (enc->thread_level_ > 0) && (split_row >= kMinSplitRow); -#else - const int do_mt = 0; -#endif - const WebPWorkerInterface* const worker_interface = - WebPGetWorkerInterface(); - SegmentJob main_job; - if (do_mt) { - SegmentJob side_job; - // Note the use of '&' instead of '&&' because we must call the functions - // no matter what. - InitSegmentJob(enc, &main_job, 0, split_row); - InitSegmentJob(enc, &side_job, split_row, last_row); - // we don't need to call Reset() on main_job.worker, since we're calling - // WebPWorkerExecute() on it - ok &= worker_interface->Reset(&side_job.worker); - // launch the two jobs in parallel - if (ok) { - worker_interface->Launch(&side_job.worker); - worker_interface->Execute(&main_job.worker); - ok &= worker_interface->Sync(&side_job.worker); - ok &= worker_interface->Sync(&main_job.worker); - } - worker_interface->End(&side_job.worker); - if (ok) MergeJobs(&side_job, &main_job); // merge results together - } else { - // Even for single-thread case, we use the generic Worker tools. - InitSegmentJob(enc, &main_job, 0, last_row); - worker_interface->Execute(&main_job.worker); - ok &= worker_interface->Sync(&main_job.worker); - } - worker_interface->End(&main_job.worker); - if (ok) { - enc->alpha_ = main_job.alpha / total_mb; - enc->uv_alpha_ = main_job.uv_alpha / total_mb; - AssignSegments(enc, main_job.alphas); - } - } else { // Use only one default segment. - ResetAllMBInfo(enc); - } - return ok; -} - diff --git a/drivers/webp/enc/backward_references.c b/drivers/webp/enc/backward_references.c deleted file mode 100644 index 136a24a8c3..0000000000 --- a/drivers/webp/enc/backward_references.c +++ /dev/null @@ -1,1715 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Author: Jyrki Alakuijala (jyrki@google.com) -// - -#include <assert.h> -#include <math.h> - -#include "./backward_references.h" -#include "./histogram.h" -#include "../dsp/lossless.h" -#include "../dsp/dsp.h" -#include "../utils/color_cache.h" -#include "../utils/utils.h" - -#define VALUES_IN_BYTE 256 - -#define MIN_BLOCK_SIZE 256 // minimum block size for backward references - -#define MAX_ENTROPY (1e30f) - -// 1M window (4M bytes) minus 120 special codes for short distances. -#define WINDOW_SIZE_BITS 20 -#define WINDOW_SIZE ((1 << WINDOW_SIZE_BITS) - 120) - -// Bounds for the match length. -#define MIN_LENGTH 2 -// If you change this, you need MAX_LENGTH_BITS + WINDOW_SIZE_BITS <= 32 as it -// is used in VP8LHashChain. -#define MAX_LENGTH_BITS 12 -// We want the max value to be attainable and stored in MAX_LENGTH_BITS bits. -#define MAX_LENGTH ((1 << MAX_LENGTH_BITS) - 1) -#if MAX_LENGTH_BITS + WINDOW_SIZE_BITS > 32 -#error "MAX_LENGTH_BITS + WINDOW_SIZE_BITS > 32" -#endif - -// ----------------------------------------------------------------------------- - -static const uint8_t plane_to_code_lut[128] = { - 96, 73, 55, 39, 23, 13, 5, 1, 255, 255, 255, 255, 255, 255, 255, 255, - 101, 78, 58, 42, 26, 16, 8, 2, 0, 3, 9, 17, 27, 43, 59, 79, - 102, 86, 62, 46, 32, 20, 10, 6, 4, 7, 11, 21, 33, 47, 63, 87, - 105, 90, 70, 52, 37, 28, 18, 14, 12, 15, 19, 29, 38, 53, 71, 91, - 110, 99, 82, 66, 48, 35, 30, 24, 22, 25, 31, 36, 49, 67, 83, 100, - 115, 108, 94, 76, 64, 50, 44, 40, 34, 41, 45, 51, 65, 77, 95, 109, - 118, 113, 103, 92, 80, 68, 60, 56, 54, 57, 61, 69, 81, 93, 104, 114, - 119, 116, 111, 106, 97, 88, 84, 74, 72, 75, 85, 89, 98, 107, 112, 117 -}; - -static int DistanceToPlaneCode(int xsize, int dist) { - const int yoffset = dist / xsize; - const int xoffset = dist - yoffset * xsize; - if (xoffset <= 8 && yoffset < 8) { - return plane_to_code_lut[yoffset * 16 + 8 - xoffset] + 1; - } else if (xoffset > xsize - 8 && yoffset < 7) { - return plane_to_code_lut[(yoffset + 1) * 16 + 8 + (xsize - xoffset)] + 1; - } - return dist + 120; -} - -// Returns the exact index where array1 and array2 are different. For an index -// inferior or equal to best_len_match, the return value just has to be strictly -// inferior to best_len_match. The current behavior is to return 0 if this index -// is best_len_match, and the index itself otherwise. -// If no two elements are the same, it returns max_limit. -static WEBP_INLINE int FindMatchLength(const uint32_t* const array1, - const uint32_t* const array2, - int best_len_match, int max_limit) { - // Before 'expensive' linear match, check if the two arrays match at the - // current best length index. - if (array1[best_len_match] != array2[best_len_match]) return 0; - - return VP8LVectorMismatch(array1, array2, max_limit); -} - -// ----------------------------------------------------------------------------- -// VP8LBackwardRefs - -struct PixOrCopyBlock { - PixOrCopyBlock* next_; // next block (or NULL) - PixOrCopy* start_; // data start - int size_; // currently used size -}; - -static void ClearBackwardRefs(VP8LBackwardRefs* const refs) { - assert(refs != NULL); - if (refs->tail_ != NULL) { - *refs->tail_ = refs->free_blocks_; // recycle all blocks at once - } - refs->free_blocks_ = refs->refs_; - refs->tail_ = &refs->refs_; - refs->last_block_ = NULL; - refs->refs_ = NULL; -} - -void VP8LBackwardRefsClear(VP8LBackwardRefs* const refs) { - assert(refs != NULL); - ClearBackwardRefs(refs); - while (refs->free_blocks_ != NULL) { - PixOrCopyBlock* const next = refs->free_blocks_->next_; - WebPSafeFree(refs->free_blocks_); - refs->free_blocks_ = next; - } -} - -void VP8LBackwardRefsInit(VP8LBackwardRefs* const refs, int block_size) { - assert(refs != NULL); - memset(refs, 0, sizeof(*refs)); - refs->tail_ = &refs->refs_; - refs->block_size_ = - (block_size < MIN_BLOCK_SIZE) ? MIN_BLOCK_SIZE : block_size; -} - -VP8LRefsCursor VP8LRefsCursorInit(const VP8LBackwardRefs* const refs) { - VP8LRefsCursor c; - c.cur_block_ = refs->refs_; - if (refs->refs_ != NULL) { - c.cur_pos = c.cur_block_->start_; - c.last_pos_ = c.cur_pos + c.cur_block_->size_; - } else { - c.cur_pos = NULL; - c.last_pos_ = NULL; - } - return c; -} - -void VP8LRefsCursorNextBlock(VP8LRefsCursor* const c) { - PixOrCopyBlock* const b = c->cur_block_->next_; - c->cur_pos = (b == NULL) ? NULL : b->start_; - c->last_pos_ = (b == NULL) ? NULL : b->start_ + b->size_; - c->cur_block_ = b; -} - -// Create a new block, either from the free list or allocated -static PixOrCopyBlock* BackwardRefsNewBlock(VP8LBackwardRefs* const refs) { - PixOrCopyBlock* b = refs->free_blocks_; - if (b == NULL) { // allocate new memory chunk - const size_t total_size = - sizeof(*b) + refs->block_size_ * sizeof(*b->start_); - b = (PixOrCopyBlock*)WebPSafeMalloc(1ULL, total_size); - if (b == NULL) { - refs->error_ |= 1; - return NULL; - } - b->start_ = (PixOrCopy*)((uint8_t*)b + sizeof(*b)); // not always aligned - } else { // recycle from free-list - refs->free_blocks_ = b->next_; - } - *refs->tail_ = b; - refs->tail_ = &b->next_; - refs->last_block_ = b; - b->next_ = NULL; - b->size_ = 0; - return b; -} - -static WEBP_INLINE void BackwardRefsCursorAdd(VP8LBackwardRefs* const refs, - const PixOrCopy v) { - PixOrCopyBlock* b = refs->last_block_; - if (b == NULL || b->size_ == refs->block_size_) { - b = BackwardRefsNewBlock(refs); - if (b == NULL) return; // refs->error_ is set - } - b->start_[b->size_++] = v; -} - -int VP8LBackwardRefsCopy(const VP8LBackwardRefs* const src, - VP8LBackwardRefs* const dst) { - const PixOrCopyBlock* b = src->refs_; - ClearBackwardRefs(dst); - assert(src->block_size_ == dst->block_size_); - while (b != NULL) { - PixOrCopyBlock* const new_b = BackwardRefsNewBlock(dst); - if (new_b == NULL) return 0; // dst->error_ is set - memcpy(new_b->start_, b->start_, b->size_ * sizeof(*b->start_)); - new_b->size_ = b->size_; - b = b->next_; - } - return 1; -} - -// ----------------------------------------------------------------------------- -// Hash chains - -int VP8LHashChainInit(VP8LHashChain* const p, int size) { - assert(p->size_ == 0); - assert(p->offset_length_ == NULL); - assert(size > 0); - p->offset_length_ = - (uint32_t*)WebPSafeMalloc(size, sizeof(*p->offset_length_)); - if (p->offset_length_ == NULL) return 0; - p->size_ = size; - - return 1; -} - -void VP8LHashChainClear(VP8LHashChain* const p) { - assert(p != NULL); - WebPSafeFree(p->offset_length_); - - p->size_ = 0; - p->offset_length_ = NULL; -} - -// ----------------------------------------------------------------------------- - -#define HASH_MULTIPLIER_HI (0xc6a4a793U) -#define HASH_MULTIPLIER_LO (0x5bd1e996U) - -static WEBP_INLINE uint32_t GetPixPairHash64(const uint32_t* const argb) { - uint32_t key; - key = argb[1] * HASH_MULTIPLIER_HI; - key += argb[0] * HASH_MULTIPLIER_LO; - key = key >> (32 - HASH_BITS); - return key; -} - -// Returns the maximum number of hash chain lookups to do for a -// given compression quality. Return value in range [8, 86]. -static int GetMaxItersForQuality(int quality) { - return 8 + (quality * quality) / 128; -} - -static int GetWindowSizeForHashChain(int quality, int xsize) { - const int max_window_size = (quality > 75) ? WINDOW_SIZE - : (quality > 50) ? (xsize << 8) - : (quality > 25) ? (xsize << 6) - : (xsize << 4); - assert(xsize > 0); - return (max_window_size > WINDOW_SIZE) ? WINDOW_SIZE : max_window_size; -} - -static WEBP_INLINE int MaxFindCopyLength(int len) { - return (len < MAX_LENGTH) ? len : MAX_LENGTH; -} - -int VP8LHashChainFill(VP8LHashChain* const p, int quality, - const uint32_t* const argb, int xsize, int ysize) { - const int size = xsize * ysize; - const int iter_max = GetMaxItersForQuality(quality); - const int iter_min = iter_max - quality / 10; - const uint32_t window_size = GetWindowSizeForHashChain(quality, xsize); - int pos; - uint32_t base_position; - int32_t* hash_to_first_index; - // Temporarily use the p->offset_length_ as a hash chain. - int32_t* chain = (int32_t*)p->offset_length_; - assert(p->size_ != 0); - assert(p->offset_length_ != NULL); - - hash_to_first_index = - (int32_t*)WebPSafeMalloc(HASH_SIZE, sizeof(*hash_to_first_index)); - if (hash_to_first_index == NULL) return 0; - - // Set the int32_t array to -1. - memset(hash_to_first_index, 0xff, HASH_SIZE * sizeof(*hash_to_first_index)); - // Fill the chain linking pixels with the same hash. - for (pos = 0; pos < size - 1; ++pos) { - const uint32_t hash_code = GetPixPairHash64(argb + pos); - chain[pos] = hash_to_first_index[hash_code]; - hash_to_first_index[hash_code] = pos; - } - WebPSafeFree(hash_to_first_index); - - // Find the best match interval at each pixel, defined by an offset to the - // pixel and a length. The right-most pixel cannot match anything to the right - // (hence a best length of 0) and the left-most pixel nothing to the left - // (hence an offset of 0). - p->offset_length_[0] = p->offset_length_[size - 1] = 0; - for (base_position = size - 2 < 0 ? 0 : size - 2; base_position > 0;) { - const int max_len = MaxFindCopyLength(size - 1 - base_position); - const uint32_t* const argb_start = argb + base_position; - int iter = iter_max; - int best_length = 0; - uint32_t best_distance = 0; - const int min_pos = - (base_position > window_size) ? base_position - window_size : 0; - const int length_max = (max_len < 256) ? max_len : 256; - uint32_t max_base_position; - - for (pos = chain[base_position]; pos >= min_pos; pos = chain[pos]) { - int curr_length; - if (--iter < 0) { - break; - } - assert(base_position > (uint32_t)pos); - - curr_length = - FindMatchLength(argb + pos, argb_start, best_length, max_len); - if (best_length < curr_length) { - best_length = curr_length; - best_distance = base_position - pos; - // Stop if we have reached the maximum length. Otherwise, make sure - // we have executed a minimum number of iterations depending on the - // quality. - if ((best_length == MAX_LENGTH) || - (curr_length >= length_max && iter < iter_min)) { - break; - } - } - } - // We have the best match but in case the two intervals continue matching - // to the left, we have the best matches for the left-extended pixels. - max_base_position = base_position; - while (1) { - assert(best_length <= MAX_LENGTH); - assert(best_distance <= WINDOW_SIZE); - p->offset_length_[base_position] = - (best_distance << MAX_LENGTH_BITS) | (uint32_t)best_length; - --base_position; - // Stop if we don't have a match or if we are out of bounds. - if (best_distance == 0 || base_position == 0) break; - // Stop if we cannot extend the matching intervals to the left. - if (base_position < best_distance || - argb[base_position - best_distance] != argb[base_position]) { - break; - } - // Stop if we are matching at its limit because there could be a closer - // matching interval with the same maximum length. Then again, if the - // matching interval is as close as possible (best_distance == 1), we will - // never find anything better so let's continue. - if (best_length == MAX_LENGTH && best_distance != 1 && - base_position + MAX_LENGTH < max_base_position) { - break; - } - if (best_length < MAX_LENGTH) { - ++best_length; - max_base_position = base_position; - } - } - } - return 1; -} - -static WEBP_INLINE int HashChainFindOffset(const VP8LHashChain* const p, - const int base_position) { - return p->offset_length_[base_position] >> MAX_LENGTH_BITS; -} - -static WEBP_INLINE int HashChainFindLength(const VP8LHashChain* const p, - const int base_position) { - return p->offset_length_[base_position] & ((1U << MAX_LENGTH_BITS) - 1); -} - -static WEBP_INLINE void HashChainFindCopy(const VP8LHashChain* const p, - int base_position, - int* const offset_ptr, - int* const length_ptr) { - *offset_ptr = HashChainFindOffset(p, base_position); - *length_ptr = HashChainFindLength(p, base_position); -} - -static WEBP_INLINE void AddSingleLiteral(uint32_t pixel, int use_color_cache, - VP8LColorCache* const hashers, - VP8LBackwardRefs* const refs) { - PixOrCopy v; - if (use_color_cache) { - const uint32_t key = VP8LColorCacheGetIndex(hashers, pixel); - if (VP8LColorCacheLookup(hashers, key) == pixel) { - v = PixOrCopyCreateCacheIdx(key); - } else { - v = PixOrCopyCreateLiteral(pixel); - VP8LColorCacheSet(hashers, key, pixel); - } - } else { - v = PixOrCopyCreateLiteral(pixel); - } - BackwardRefsCursorAdd(refs, v); -} - -static int BackwardReferencesRle(int xsize, int ysize, - const uint32_t* const argb, - int cache_bits, VP8LBackwardRefs* const refs) { - const int pix_count = xsize * ysize; - int i, k; - const int use_color_cache = (cache_bits > 0); - VP8LColorCache hashers; - - if (use_color_cache && !VP8LColorCacheInit(&hashers, cache_bits)) { - return 0; - } - ClearBackwardRefs(refs); - // Add first pixel as literal. - AddSingleLiteral(argb[0], use_color_cache, &hashers, refs); - i = 1; - while (i < pix_count) { - const int max_len = MaxFindCopyLength(pix_count - i); - const int kMinLength = 4; - const int rle_len = FindMatchLength(argb + i, argb + i - 1, 0, max_len); - const int prev_row_len = (i < xsize) ? 0 : - FindMatchLength(argb + i, argb + i - xsize, 0, max_len); - if (rle_len >= prev_row_len && rle_len >= kMinLength) { - BackwardRefsCursorAdd(refs, PixOrCopyCreateCopy(1, rle_len)); - // We don't need to update the color cache here since it is always the - // same pixel being copied, and that does not change the color cache - // state. - i += rle_len; - } else if (prev_row_len >= kMinLength) { - BackwardRefsCursorAdd(refs, PixOrCopyCreateCopy(xsize, prev_row_len)); - if (use_color_cache) { - for (k = 0; k < prev_row_len; ++k) { - VP8LColorCacheInsert(&hashers, argb[i + k]); - } - } - i += prev_row_len; - } else { - AddSingleLiteral(argb[i], use_color_cache, &hashers, refs); - i++; - } - } - if (use_color_cache) VP8LColorCacheClear(&hashers); - return !refs->error_; -} - -static int BackwardReferencesLz77(int xsize, int ysize, - const uint32_t* const argb, int cache_bits, - const VP8LHashChain* const hash_chain, - VP8LBackwardRefs* const refs) { - int i; - int i_last_check = -1; - int ok = 0; - int cc_init = 0; - const int use_color_cache = (cache_bits > 0); - const int pix_count = xsize * ysize; - VP8LColorCache hashers; - - if (use_color_cache) { - cc_init = VP8LColorCacheInit(&hashers, cache_bits); - if (!cc_init) goto Error; - } - ClearBackwardRefs(refs); - for (i = 0; i < pix_count;) { - // Alternative#1: Code the pixels starting at 'i' using backward reference. - int offset = 0; - int len = 0; - int j; - HashChainFindCopy(hash_chain, i, &offset, &len); - if (len > MIN_LENGTH + 1) { - const int len_ini = len; - int max_reach = 0; - assert(i + len < pix_count); - // Only start from what we have not checked already. - i_last_check = (i > i_last_check) ? i : i_last_check; - // We know the best match for the current pixel but we try to find the - // best matches for the current pixel AND the next one combined. - // The naive method would use the intervals: - // [i,i+len) + [i+len, length of best match at i+len) - // while we check if we can use: - // [i,j) (where j<=i+len) + [j, length of best match at j) - for (j = i_last_check + 1; j <= i + len_ini; ++j) { - const int len_j = HashChainFindLength(hash_chain, j); - const int reach = - j + (len_j > MIN_LENGTH + 1 ? len_j : 1); // 1 for single literal. - if (reach > max_reach) { - len = j - i; - max_reach = reach; - } - } - } else { - len = 1; - } - // Go with literal or backward reference. - assert(len > 0); - if (len == 1) { - AddSingleLiteral(argb[i], use_color_cache, &hashers, refs); - } else { - BackwardRefsCursorAdd(refs, PixOrCopyCreateCopy(offset, len)); - if (use_color_cache) { - for (j = i; j < i + len; ++j) VP8LColorCacheInsert(&hashers, argb[j]); - } - } - i += len; - } - - ok = !refs->error_; - Error: - if (cc_init) VP8LColorCacheClear(&hashers); - return ok; -} - -// ----------------------------------------------------------------------------- - -typedef struct { - double alpha_[VALUES_IN_BYTE]; - double red_[VALUES_IN_BYTE]; - double blue_[VALUES_IN_BYTE]; - double distance_[NUM_DISTANCE_CODES]; - double* literal_; -} CostModel; - -static int BackwardReferencesTraceBackwards( - int xsize, int ysize, const uint32_t* const argb, int quality, - int cache_bits, const VP8LHashChain* const hash_chain, - VP8LBackwardRefs* const refs); - -static void ConvertPopulationCountTableToBitEstimates( - int num_symbols, const uint32_t population_counts[], double output[]) { - uint32_t sum = 0; - int nonzeros = 0; - int i; - for (i = 0; i < num_symbols; ++i) { - sum += population_counts[i]; - if (population_counts[i] > 0) { - ++nonzeros; - } - } - if (nonzeros <= 1) { - memset(output, 0, num_symbols * sizeof(*output)); - } else { - const double logsum = VP8LFastLog2(sum); - for (i = 0; i < num_symbols; ++i) { - output[i] = logsum - VP8LFastLog2(population_counts[i]); - } - } -} - -static int CostModelBuild(CostModel* const m, int cache_bits, - VP8LBackwardRefs* const refs) { - int ok = 0; - VP8LHistogram* const histo = VP8LAllocateHistogram(cache_bits); - if (histo == NULL) goto Error; - - VP8LHistogramCreate(histo, refs, cache_bits); - - ConvertPopulationCountTableToBitEstimates( - VP8LHistogramNumCodes(histo->palette_code_bits_), - histo->literal_, m->literal_); - ConvertPopulationCountTableToBitEstimates( - VALUES_IN_BYTE, histo->red_, m->red_); - ConvertPopulationCountTableToBitEstimates( - VALUES_IN_BYTE, histo->blue_, m->blue_); - ConvertPopulationCountTableToBitEstimates( - VALUES_IN_BYTE, histo->alpha_, m->alpha_); - ConvertPopulationCountTableToBitEstimates( - NUM_DISTANCE_CODES, histo->distance_, m->distance_); - ok = 1; - - Error: - VP8LFreeHistogram(histo); - return ok; -} - -static WEBP_INLINE double GetLiteralCost(const CostModel* const m, uint32_t v) { - return m->alpha_[v >> 24] + - m->red_[(v >> 16) & 0xff] + - m->literal_[(v >> 8) & 0xff] + - m->blue_[v & 0xff]; -} - -static WEBP_INLINE double GetCacheCost(const CostModel* const m, uint32_t idx) { - const int literal_idx = VALUES_IN_BYTE + NUM_LENGTH_CODES + idx; - return m->literal_[literal_idx]; -} - -static WEBP_INLINE double GetLengthCost(const CostModel* const m, - uint32_t length) { - int code, extra_bits; - VP8LPrefixEncodeBits(length, &code, &extra_bits); - return m->literal_[VALUES_IN_BYTE + code] + extra_bits; -} - -static WEBP_INLINE double GetDistanceCost(const CostModel* const m, - uint32_t distance) { - int code, extra_bits; - VP8LPrefixEncodeBits(distance, &code, &extra_bits); - return m->distance_[code] + extra_bits; -} - -static void AddSingleLiteralWithCostModel(const uint32_t* const argb, - VP8LColorCache* const hashers, - const CostModel* const cost_model, - int idx, int use_color_cache, - double prev_cost, float* const cost, - uint16_t* const dist_array) { - double cost_val = prev_cost; - const uint32_t color = argb[0]; - if (use_color_cache && VP8LColorCacheContains(hashers, color)) { - const double mul0 = 0.68; - const int ix = VP8LColorCacheGetIndex(hashers, color); - cost_val += GetCacheCost(cost_model, ix) * mul0; - } else { - const double mul1 = 0.82; - if (use_color_cache) VP8LColorCacheInsert(hashers, color); - cost_val += GetLiteralCost(cost_model, color) * mul1; - } - if (cost[idx] > cost_val) { - cost[idx] = (float)cost_val; - dist_array[idx] = 1; // only one is inserted. - } -} - -// ----------------------------------------------------------------------------- -// CostManager and interval handling - -// Empirical value to avoid high memory consumption but good for performance. -#define COST_CACHE_INTERVAL_SIZE_MAX 100 - -// To perform backward reference every pixel at index index_ is considered and -// the cost for the MAX_LENGTH following pixels computed. Those following pixels -// at index index_ + k (k from 0 to MAX_LENGTH) have a cost of: -// distance_cost_ at index_ + GetLengthCost(cost_model, k) -// (named cost) (named cached cost) -// and the minimum value is kept. GetLengthCost(cost_model, k) is cached in an -// array of size MAX_LENGTH. -// Instead of performing MAX_LENGTH comparisons per pixel, we keep track of the -// minimal values using intervals, for which lower_ and upper_ bounds are kept. -// An interval is defined by the index_ of the pixel that generated it and -// is only useful in a range of indices from start_ to end_ (exclusive), i.e. -// it contains the minimum value for pixels between start_ and end_. -// Intervals are stored in a linked list and ordered by start_. When a new -// interval has a better minimum, old intervals are split or removed. -typedef struct CostInterval CostInterval; -struct CostInterval { - double lower_; - double upper_; - int start_; - int end_; - double distance_cost_; - int index_; - CostInterval* previous_; - CostInterval* next_; -}; - -// The GetLengthCost(cost_model, k) part of the costs is also bounded for -// efficiency in a set of intervals of a different type. -// If those intervals are small enough, they are not used for comparison and -// written into the costs right away. -typedef struct { - double lower_; // Lower bound of the interval. - double upper_; // Upper bound of the interval. - int start_; - int end_; // Exclusive. - int do_write_; // If !=0, the interval is saved to cost instead of being kept - // for comparison. -} CostCacheInterval; - -// This structure is in charge of managing intervals and costs. -// It caches the different CostCacheInterval, caches the different -// GetLengthCost(cost_model, k) in cost_cache_ and the CostInterval's (whose -// count_ is limited by COST_CACHE_INTERVAL_SIZE_MAX). -#define COST_MANAGER_MAX_FREE_LIST 10 -typedef struct { - CostInterval* head_; - int count_; // The number of stored intervals. - CostCacheInterval* cache_intervals_; - size_t cache_intervals_size_; - double cost_cache_[MAX_LENGTH]; // Contains the GetLengthCost(cost_model, k). - double min_cost_cache_; // The minimum value in cost_cache_[1:]. - double max_cost_cache_; // The maximum value in cost_cache_[1:]. - float* costs_; - uint16_t* dist_array_; - // Most of the time, we only need few intervals -> use a free-list, to avoid - // fragmentation with small allocs in most common cases. - CostInterval intervals_[COST_MANAGER_MAX_FREE_LIST]; - CostInterval* free_intervals_; - // These are regularly malloc'd remains. This list can't grow larger than than - // size COST_CACHE_INTERVAL_SIZE_MAX - COST_MANAGER_MAX_FREE_LIST, note. - CostInterval* recycled_intervals_; - // Buffer used in BackwardReferencesHashChainDistanceOnly to store the ends - // of the intervals that can have impacted the cost at a pixel. - int* interval_ends_; - int interval_ends_size_; -} CostManager; - -static int IsCostCacheIntervalWritable(int start, int end) { - // 100 is the length for which we consider an interval for comparison, and not - // for writing. - // The first intervals are very small and go in increasing size. This constant - // helps merging them into one big interval (up to index 150/200 usually from - // which intervals start getting much bigger). - // This value is empirical. - return (end - start + 1 < 100); -} - -static void CostIntervalAddToFreeList(CostManager* const manager, - CostInterval* const interval) { - interval->next_ = manager->free_intervals_; - manager->free_intervals_ = interval; -} - -static int CostIntervalIsInFreeList(const CostManager* const manager, - const CostInterval* const interval) { - return (interval >= &manager->intervals_[0] && - interval <= &manager->intervals_[COST_MANAGER_MAX_FREE_LIST - 1]); -} - -static void CostManagerInitFreeList(CostManager* const manager) { - int i; - manager->free_intervals_ = NULL; - for (i = 0; i < COST_MANAGER_MAX_FREE_LIST; ++i) { - CostIntervalAddToFreeList(manager, &manager->intervals_[i]); - } -} - -static void DeleteIntervalList(CostManager* const manager, - const CostInterval* interval) { - while (interval != NULL) { - const CostInterval* const next = interval->next_; - if (!CostIntervalIsInFreeList(manager, interval)) { - WebPSafeFree((void*)interval); - } // else: do nothing - interval = next; - } -} - -static void CostManagerClear(CostManager* const manager) { - if (manager == NULL) return; - - WebPSafeFree(manager->costs_); - WebPSafeFree(manager->cache_intervals_); - WebPSafeFree(manager->interval_ends_); - - // Clear the interval lists. - DeleteIntervalList(manager, manager->head_); - manager->head_ = NULL; - DeleteIntervalList(manager, manager->recycled_intervals_); - manager->recycled_intervals_ = NULL; - - // Reset pointers, count_ and cache_intervals_size_. - memset(manager, 0, sizeof(*manager)); - CostManagerInitFreeList(manager); -} - -static int CostManagerInit(CostManager* const manager, - uint16_t* const dist_array, int pix_count, - const CostModel* const cost_model) { - int i; - const int cost_cache_size = (pix_count > MAX_LENGTH) ? MAX_LENGTH : pix_count; - // This constant is tied to the cost_model we use. - // Empirically, differences between intervals is usually of more than 1. - const double min_cost_diff = 0.1; - - manager->costs_ = NULL; - manager->cache_intervals_ = NULL; - manager->interval_ends_ = NULL; - manager->head_ = NULL; - manager->recycled_intervals_ = NULL; - manager->count_ = 0; - manager->dist_array_ = dist_array; - CostManagerInitFreeList(manager); - - // Fill in the cost_cache_. - manager->cache_intervals_size_ = 1; - manager->cost_cache_[0] = 0; - for (i = 1; i < cost_cache_size; ++i) { - manager->cost_cache_[i] = GetLengthCost(cost_model, i); - // Get an approximation of the number of bound intervals. - if (fabs(manager->cost_cache_[i] - manager->cost_cache_[i - 1]) > - min_cost_diff) { - ++manager->cache_intervals_size_; - } - // Compute the minimum of cost_cache_. - if (i == 1) { - manager->min_cost_cache_ = manager->cost_cache_[1]; - manager->max_cost_cache_ = manager->cost_cache_[1]; - } else if (manager->cost_cache_[i] < manager->min_cost_cache_) { - manager->min_cost_cache_ = manager->cost_cache_[i]; - } else if (manager->cost_cache_[i] > manager->max_cost_cache_) { - manager->max_cost_cache_ = manager->cost_cache_[i]; - } - } - - // With the current cost models, we have 15 intervals, so we are safe by - // setting a maximum of COST_CACHE_INTERVAL_SIZE_MAX. - if (manager->cache_intervals_size_ > COST_CACHE_INTERVAL_SIZE_MAX) { - manager->cache_intervals_size_ = COST_CACHE_INTERVAL_SIZE_MAX; - } - manager->cache_intervals_ = (CostCacheInterval*)WebPSafeMalloc( - manager->cache_intervals_size_, sizeof(*manager->cache_intervals_)); - if (manager->cache_intervals_ == NULL) { - CostManagerClear(manager); - return 0; - } - - // Fill in the cache_intervals_. - { - double cost_prev = -1e38f; // unprobably low initial value - CostCacheInterval* prev = NULL; - CostCacheInterval* cur = manager->cache_intervals_; - const CostCacheInterval* const end = - manager->cache_intervals_ + manager->cache_intervals_size_; - - // Consecutive values in cost_cache_ are compared and if a big enough - // difference is found, a new interval is created and bounded. - for (i = 0; i < cost_cache_size; ++i) { - const double cost_val = manager->cost_cache_[i]; - if (i == 0 || - (fabs(cost_val - cost_prev) > min_cost_diff && cur + 1 < end)) { - if (i > 1) { - const int is_writable = - IsCostCacheIntervalWritable(cur->start_, cur->end_); - // Merge with the previous interval if both are writable. - if (is_writable && cur != manager->cache_intervals_ && - prev->do_write_) { - // Update the previous interval. - prev->end_ = cur->end_; - if (cur->lower_ < prev->lower_) { - prev->lower_ = cur->lower_; - } else if (cur->upper_ > prev->upper_) { - prev->upper_ = cur->upper_; - } - } else { - cur->do_write_ = is_writable; - prev = cur; - ++cur; - } - } - // Initialize an interval. - cur->start_ = i; - cur->do_write_ = 0; - cur->lower_ = cost_val; - cur->upper_ = cost_val; - } else { - // Update the current interval bounds. - if (cost_val < cur->lower_) { - cur->lower_ = cost_val; - } else if (cost_val > cur->upper_) { - cur->upper_ = cost_val; - } - } - cur->end_ = i + 1; - cost_prev = cost_val; - } - manager->cache_intervals_size_ = cur + 1 - manager->cache_intervals_; - } - - manager->costs_ = (float*)WebPSafeMalloc(pix_count, sizeof(*manager->costs_)); - if (manager->costs_ == NULL) { - CostManagerClear(manager); - return 0; - } - // Set the initial costs_ high for every pixel as we will keep the minimum. - for (i = 0; i < pix_count; ++i) manager->costs_[i] = 1e38f; - - // The cost at pixel is influenced by the cost intervals from previous pixels. - // Let us take the specific case where the offset is the same (which actually - // happens a lot in case of uniform regions). - // pixel i contributes to j>i a cost of: offset cost + cost_cache_[j-i] - // pixel i+1 contributes to j>i a cost of: 2*offset cost + cost_cache_[j-i-1] - // pixel i+2 contributes to j>i a cost of: 3*offset cost + cost_cache_[j-i-2] - // and so on. - // A pixel i influences the following length(j) < MAX_LENGTH pixels. What is - // the value of j such that pixel i + j cannot influence any of those pixels? - // This value is such that: - // max of cost_cache_ < j*offset cost + min of cost_cache_ - // (pixel i + j 's cost cannot beat the worst cost given by pixel i). - // This value will be used to optimize the cost computation in - // BackwardReferencesHashChainDistanceOnly. - { - // The offset cost is computed in GetDistanceCost and has a minimum value of - // the minimum in cost_model->distance_. The case where the offset cost is 0 - // will be dealt with differently later so we are only interested in the - // minimum non-zero offset cost. - double offset_cost_min = 0.; - int size; - for (i = 0; i < NUM_DISTANCE_CODES; ++i) { - if (cost_model->distance_[i] != 0) { - if (offset_cost_min == 0.) { - offset_cost_min = cost_model->distance_[i]; - } else if (cost_model->distance_[i] < offset_cost_min) { - offset_cost_min = cost_model->distance_[i]; - } - } - } - // In case all the cost_model->distance_ is 0, the next non-zero cost we - // can have is from the extra bit in GetDistanceCost, hence 1. - if (offset_cost_min < 1.) offset_cost_min = 1.; - - size = 1 + (int)ceil((manager->max_cost_cache_ - manager->min_cost_cache_) / - offset_cost_min); - // Empirically, we usually end up with a value below 100. - if (size > MAX_LENGTH) size = MAX_LENGTH; - - manager->interval_ends_ = - (int*)WebPSafeMalloc(size, sizeof(*manager->interval_ends_)); - if (manager->interval_ends_ == NULL) { - CostManagerClear(manager); - return 0; - } - manager->interval_ends_size_ = size; - } - - return 1; -} - -// Given the distance_cost for pixel 'index', update the cost at pixel 'i' if it -// is smaller than the previously computed value. -static WEBP_INLINE void UpdateCost(CostManager* const manager, int i, int index, - double distance_cost) { - int k = i - index; - double cost_tmp; - assert(k >= 0 && k < MAX_LENGTH); - cost_tmp = distance_cost + manager->cost_cache_[k]; - - if (manager->costs_[i] > cost_tmp) { - manager->costs_[i] = (float)cost_tmp; - manager->dist_array_[i] = k + 1; - } -} - -// Given the distance_cost for pixel 'index', update the cost for all the pixels -// between 'start' and 'end' excluded. -static WEBP_INLINE void UpdateCostPerInterval(CostManager* const manager, - int start, int end, int index, - double distance_cost) { - int i; - for (i = start; i < end; ++i) UpdateCost(manager, i, index, distance_cost); -} - -// Given two intervals, make 'prev' be the previous one of 'next' in 'manager'. -static WEBP_INLINE void ConnectIntervals(CostManager* const manager, - CostInterval* const prev, - CostInterval* const next) { - if (prev != NULL) { - prev->next_ = next; - } else { - manager->head_ = next; - } - - if (next != NULL) next->previous_ = prev; -} - -// Pop an interval in the manager. -static WEBP_INLINE void PopInterval(CostManager* const manager, - CostInterval* const interval) { - CostInterval* const next = interval->next_; - - if (interval == NULL) return; - - ConnectIntervals(manager, interval->previous_, next); - if (CostIntervalIsInFreeList(manager, interval)) { - CostIntervalAddToFreeList(manager, interval); - } else { // recycle regularly malloc'd intervals too - interval->next_ = manager->recycled_intervals_; - manager->recycled_intervals_ = interval; - } - --manager->count_; - assert(manager->count_ >= 0); -} - -// Update the cost at index i by going over all the stored intervals that -// overlap with i. -static WEBP_INLINE void UpdateCostPerIndex(CostManager* const manager, int i) { - CostInterval* current = manager->head_; - - while (current != NULL && current->start_ <= i) { - if (current->end_ <= i) { - // We have an outdated interval, remove it. - CostInterval* next = current->next_; - PopInterval(manager, current); - current = next; - } else { - UpdateCost(manager, i, current->index_, current->distance_cost_); - current = current->next_; - } - } -} - -// Given a current orphan interval and its previous interval, before -// it was orphaned (which can be NULL), set it at the right place in the list -// of intervals using the start_ ordering and the previous interval as a hint. -static WEBP_INLINE void PositionOrphanInterval(CostManager* const manager, - CostInterval* const current, - CostInterval* previous) { - assert(current != NULL); - - if (previous == NULL) previous = manager->head_; - while (previous != NULL && current->start_ < previous->start_) { - previous = previous->previous_; - } - while (previous != NULL && previous->next_ != NULL && - previous->next_->start_ < current->start_) { - previous = previous->next_; - } - - if (previous != NULL) { - ConnectIntervals(manager, current, previous->next_); - } else { - ConnectIntervals(manager, current, manager->head_); - } - ConnectIntervals(manager, previous, current); -} - -// Insert an interval in the list contained in the manager by starting at -// interval_in as a hint. The intervals are sorted by start_ value. -static WEBP_INLINE void InsertInterval(CostManager* const manager, - CostInterval* const interval_in, - double distance_cost, double lower, - double upper, int index, int start, - int end) { - CostInterval* interval_new; - - if (IsCostCacheIntervalWritable(start, end) || - manager->count_ >= COST_CACHE_INTERVAL_SIZE_MAX) { - // Write down the interval if it is too small. - UpdateCostPerInterval(manager, start, end, index, distance_cost); - return; - } - if (manager->free_intervals_ != NULL) { - interval_new = manager->free_intervals_; - manager->free_intervals_ = interval_new->next_; - } else if (manager->recycled_intervals_ != NULL) { - interval_new = manager->recycled_intervals_; - manager->recycled_intervals_ = interval_new->next_; - } else { // malloc for good - interval_new = (CostInterval*)WebPSafeMalloc(1, sizeof(*interval_new)); - if (interval_new == NULL) { - // Write down the interval if we cannot create it. - UpdateCostPerInterval(manager, start, end, index, distance_cost); - return; - } - } - - interval_new->distance_cost_ = distance_cost; - interval_new->lower_ = lower; - interval_new->upper_ = upper; - interval_new->index_ = index; - interval_new->start_ = start; - interval_new->end_ = end; - PositionOrphanInterval(manager, interval_new, interval_in); - - ++manager->count_; -} - -// When an interval has its start_ or end_ modified, it needs to be -// repositioned in the linked list. -static WEBP_INLINE void RepositionInterval(CostManager* const manager, - CostInterval* const interval) { - if (IsCostCacheIntervalWritable(interval->start_, interval->end_)) { - // Maybe interval has been resized and is small enough to be removed. - UpdateCostPerInterval(manager, interval->start_, interval->end_, - interval->index_, interval->distance_cost_); - PopInterval(manager, interval); - return; - } - - // Early exit if interval is at the right spot. - if ((interval->previous_ == NULL || - interval->previous_->start_ <= interval->start_) && - (interval->next_ == NULL || - interval->start_ <= interval->next_->start_)) { - return; - } - - ConnectIntervals(manager, interval->previous_, interval->next_); - PositionOrphanInterval(manager, interval, interval->previous_); -} - -// Given a new cost interval defined by its start at index, its last value and -// distance_cost, add its contributions to the previous intervals and costs. -// If handling the interval or one of its subintervals becomes to heavy, its -// contribution is added to the costs right away. -static WEBP_INLINE void PushInterval(CostManager* const manager, - double distance_cost, int index, - int last) { - size_t i; - CostInterval* interval = manager->head_; - CostInterval* interval_next; - const CostCacheInterval* const cost_cache_intervals = - manager->cache_intervals_; - - for (i = 0; i < manager->cache_intervals_size_ && - cost_cache_intervals[i].start_ < last; - ++i) { - // Define the intersection of the ith interval with the new one. - int start = index + cost_cache_intervals[i].start_; - const int end = index + (cost_cache_intervals[i].end_ > last - ? last - : cost_cache_intervals[i].end_); - const double lower_in = cost_cache_intervals[i].lower_; - const double upper_in = cost_cache_intervals[i].upper_; - const double lower_full_in = distance_cost + lower_in; - const double upper_full_in = distance_cost + upper_in; - - if (cost_cache_intervals[i].do_write_) { - UpdateCostPerInterval(manager, start, end, index, distance_cost); - continue; - } - - for (; interval != NULL && interval->start_ < end && start < end; - interval = interval_next) { - const double lower_full_interval = - interval->distance_cost_ + interval->lower_; - const double upper_full_interval = - interval->distance_cost_ + interval->upper_; - - interval_next = interval->next_; - - // Make sure we have some overlap - if (start >= interval->end_) continue; - - if (lower_full_in >= upper_full_interval) { - // When intervals are represented, the lower, the better. - // [**********************************************************] - // start end - // [----------------------------------] - // interval->start_ interval->end_ - // If we are worse than what we already have, add whatever we have so - // far up to interval. - const int start_new = interval->end_; - InsertInterval(manager, interval, distance_cost, lower_in, upper_in, - index, start, interval->start_); - start = start_new; - continue; - } - - // We know the two intervals intersect. - if (upper_full_in >= lower_full_interval) { - // There is no clear cut on which is best, so let's keep both. - // [*********[*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*]***********] - // start interval->start_ interval->end_ end - // OR - // [*********[*-*-*-*-*-*-*-*-*-*-*-]----------------------] - // start interval->start_ end interval->end_ - const int end_new = (interval->end_ <= end) ? interval->end_ : end; - InsertInterval(manager, interval, distance_cost, lower_in, upper_in, - index, start, end_new); - start = end_new; - } else if (start <= interval->start_ && interval->end_ <= end) { - // [----------------------------------] - // interval->start_ interval->end_ - // [**************************************************************] - // start end - // We can safely remove the old interval as it is fully included. - PopInterval(manager, interval); - } else { - if (interval->start_ <= start && end <= interval->end_) { - // [--------------------------------------------------------------] - // interval->start_ interval->end_ - // [*****************************] - // start end - // We have to split the old interval as it fully contains the new one. - const int end_original = interval->end_; - interval->end_ = start; - InsertInterval(manager, interval, interval->distance_cost_, - interval->lower_, interval->upper_, interval->index_, - end, end_original); - } else if (interval->start_ < start) { - // [------------------------------------] - // interval->start_ interval->end_ - // [*****************************] - // start end - interval->end_ = start; - } else { - // [------------------------------------] - // interval->start_ interval->end_ - // [*****************************] - // start end - interval->start_ = end; - } - - // The interval has been modified, we need to reposition it or write it. - RepositionInterval(manager, interval); - } - } - // Insert the remaining interval from start to end. - InsertInterval(manager, interval, distance_cost, lower_in, upper_in, index, - start, end); - } -} - -static int BackwardReferencesHashChainDistanceOnly( - int xsize, int ysize, const uint32_t* const argb, int quality, - int cache_bits, const VP8LHashChain* const hash_chain, - VP8LBackwardRefs* const refs, uint16_t* const dist_array) { - int i; - int ok = 0; - int cc_init = 0; - const int pix_count = xsize * ysize; - const int use_color_cache = (cache_bits > 0); - const size_t literal_array_size = sizeof(double) * - (NUM_LITERAL_CODES + NUM_LENGTH_CODES + - ((cache_bits > 0) ? (1 << cache_bits) : 0)); - const size_t cost_model_size = sizeof(CostModel) + literal_array_size; - CostModel* const cost_model = - (CostModel*)WebPSafeCalloc(1ULL, cost_model_size); - VP8LColorCache hashers; - const int skip_length = 32 + quality; - const int skip_min_distance_code = 2; - CostManager* cost_manager = - (CostManager*)WebPSafeMalloc(1ULL, sizeof(*cost_manager)); - - if (cost_model == NULL || cost_manager == NULL) goto Error; - - cost_model->literal_ = (double*)(cost_model + 1); - if (use_color_cache) { - cc_init = VP8LColorCacheInit(&hashers, cache_bits); - if (!cc_init) goto Error; - } - - if (!CostModelBuild(cost_model, cache_bits, refs)) { - goto Error; - } - - if (!CostManagerInit(cost_manager, dist_array, pix_count, cost_model)) { - goto Error; - } - - // We loop one pixel at a time, but store all currently best points to - // non-processed locations from this point. - dist_array[0] = 0; - // Add first pixel as literal. - AddSingleLiteralWithCostModel(argb + 0, &hashers, cost_model, 0, - use_color_cache, 0.0, cost_manager->costs_, - dist_array); - - for (i = 1; i < pix_count - 1; ++i) { - int offset = 0, len = 0; - double prev_cost = cost_manager->costs_[i - 1]; - HashChainFindCopy(hash_chain, i, &offset, &len); - if (len >= MIN_LENGTH) { - const int code = DistanceToPlaneCode(xsize, offset); - const double offset_cost = GetDistanceCost(cost_model, code); - const int first_i = i; - int j_max = 0, interval_ends_index = 0; - const int is_offset_zero = (offset_cost == 0.); - - if (!is_offset_zero) { - j_max = (int)ceil( - (cost_manager->max_cost_cache_ - cost_manager->min_cost_cache_) / - offset_cost); - if (j_max < 1) { - j_max = 1; - } else if (j_max > cost_manager->interval_ends_size_ - 1) { - // This could only happen in the case of MAX_LENGTH. - j_max = cost_manager->interval_ends_size_ - 1; - } - } // else j_max is unused anyway. - - // Instead of considering all contributions from a pixel i by calling: - // PushInterval(cost_manager, prev_cost + offset_cost, i, len); - // we optimize these contributions in case offset_cost stays the same for - // consecutive pixels. This describes a set of pixels similar to a - // previous set (e.g. constant color regions). - for (; i < pix_count - 1; ++i) { - int offset_next, len_next; - prev_cost = cost_manager->costs_[i - 1]; - - if (is_offset_zero) { - // No optimization can be made so we just push all of the - // contributions from i. - PushInterval(cost_manager, prev_cost, i, len); - } else { - // j_max is chosen as the smallest j such that: - // max of cost_cache_ < j*offset cost + min of cost_cache_ - // Therefore, the pixel influenced by i-j_max, cannot be influenced - // by i. Only the costs after the end of what i contributed need to be - // updated. cost_manager->interval_ends_ is a circular buffer that - // stores those ends. - const double distance_cost = prev_cost + offset_cost; - int j = cost_manager->interval_ends_[interval_ends_index]; - if (i - first_i <= j_max || - !IsCostCacheIntervalWritable(j, i + len)) { - PushInterval(cost_manager, distance_cost, i, len); - } else { - for (; j < i + len; ++j) { - UpdateCost(cost_manager, j, i, distance_cost); - } - } - // Store the new end in the circular buffer. - assert(interval_ends_index < cost_manager->interval_ends_size_); - cost_manager->interval_ends_[interval_ends_index] = i + len; - if (++interval_ends_index > j_max) interval_ends_index = 0; - } - - // Check whether i is the last pixel to consider, as it is handled - // differently. - if (i + 1 >= pix_count - 1) break; - HashChainFindCopy(hash_chain, i + 1, &offset_next, &len_next); - if (offset_next != offset) break; - len = len_next; - UpdateCostPerIndex(cost_manager, i); - AddSingleLiteralWithCostModel(argb + i, &hashers, cost_model, i, - use_color_cache, prev_cost, - cost_manager->costs_, dist_array); - } - // Submit the last pixel. - UpdateCostPerIndex(cost_manager, i + 1); - - // This if is for speedup only. It roughly doubles the speed, and - // makes compression worse by .1 %. - if (len >= skip_length && code <= skip_min_distance_code) { - // Long copy for short distances, let's skip the middle - // lookups for better copies. - // 1) insert the hashes. - if (use_color_cache) { - int k; - for (k = 0; k < len; ++k) { - VP8LColorCacheInsert(&hashers, argb[i + k]); - } - } - // 2) jump. - { - const int i_next = i + len - 1; // for loop does ++i, thus -1 here. - for (; i <= i_next; ++i) UpdateCostPerIndex(cost_manager, i + 1); - i = i_next; - } - goto next_symbol; - } - if (len > MIN_LENGTH) { - int code_min_length; - double cost_total; - offset = HashChainFindOffset(hash_chain, i); - code_min_length = DistanceToPlaneCode(xsize, offset); - cost_total = prev_cost + - GetDistanceCost(cost_model, code_min_length) + - GetLengthCost(cost_model, 1); - if (cost_manager->costs_[i + 1] > cost_total) { - cost_manager->costs_[i + 1] = (float)cost_total; - dist_array[i + 1] = 2; - } - } - } else { // len < MIN_LENGTH - UpdateCostPerIndex(cost_manager, i + 1); - } - - AddSingleLiteralWithCostModel(argb + i, &hashers, cost_model, i, - use_color_cache, prev_cost, - cost_manager->costs_, dist_array); - - next_symbol: ; - } - // Handle the last pixel. - if (i == (pix_count - 1)) { - AddSingleLiteralWithCostModel( - argb + i, &hashers, cost_model, i, use_color_cache, - cost_manager->costs_[pix_count - 2], cost_manager->costs_, dist_array); - } - - ok = !refs->error_; - Error: - if (cc_init) VP8LColorCacheClear(&hashers); - CostManagerClear(cost_manager); - WebPSafeFree(cost_model); - WebPSafeFree(cost_manager); - return ok; -} - -// We pack the path at the end of *dist_array and return -// a pointer to this part of the array. Example: -// dist_array = [1x2xx3x2] => packed [1x2x1232], chosen_path = [1232] -static void TraceBackwards(uint16_t* const dist_array, - int dist_array_size, - uint16_t** const chosen_path, - int* const chosen_path_size) { - uint16_t* path = dist_array + dist_array_size; - uint16_t* cur = dist_array + dist_array_size - 1; - while (cur >= dist_array) { - const int k = *cur; - --path; - *path = k; - cur -= k; - } - *chosen_path = path; - *chosen_path_size = (int)(dist_array + dist_array_size - path); -} - -static int BackwardReferencesHashChainFollowChosenPath( - const uint32_t* const argb, int cache_bits, - const uint16_t* const chosen_path, int chosen_path_size, - const VP8LHashChain* const hash_chain, VP8LBackwardRefs* const refs) { - const int use_color_cache = (cache_bits > 0); - int ix; - int i = 0; - int ok = 0; - int cc_init = 0; - VP8LColorCache hashers; - - if (use_color_cache) { - cc_init = VP8LColorCacheInit(&hashers, cache_bits); - if (!cc_init) goto Error; - } - - ClearBackwardRefs(refs); - for (ix = 0; ix < chosen_path_size; ++ix) { - const int len = chosen_path[ix]; - if (len != 1) { - int k; - const int offset = HashChainFindOffset(hash_chain, i); - BackwardRefsCursorAdd(refs, PixOrCopyCreateCopy(offset, len)); - if (use_color_cache) { - for (k = 0; k < len; ++k) { - VP8LColorCacheInsert(&hashers, argb[i + k]); - } - } - i += len; - } else { - PixOrCopy v; - if (use_color_cache && VP8LColorCacheContains(&hashers, argb[i])) { - // push pixel as a color cache index - const int idx = VP8LColorCacheGetIndex(&hashers, argb[i]); - v = PixOrCopyCreateCacheIdx(idx); - } else { - if (use_color_cache) VP8LColorCacheInsert(&hashers, argb[i]); - v = PixOrCopyCreateLiteral(argb[i]); - } - BackwardRefsCursorAdd(refs, v); - ++i; - } - } - ok = !refs->error_; - Error: - if (cc_init) VP8LColorCacheClear(&hashers); - return ok; -} - -// Returns 1 on success. -static int BackwardReferencesTraceBackwards( - int xsize, int ysize, const uint32_t* const argb, int quality, - int cache_bits, const VP8LHashChain* const hash_chain, - VP8LBackwardRefs* const refs) { - int ok = 0; - const int dist_array_size = xsize * ysize; - uint16_t* chosen_path = NULL; - int chosen_path_size = 0; - uint16_t* dist_array = - (uint16_t*)WebPSafeMalloc(dist_array_size, sizeof(*dist_array)); - - if (dist_array == NULL) goto Error; - - if (!BackwardReferencesHashChainDistanceOnly( - xsize, ysize, argb, quality, cache_bits, hash_chain, - refs, dist_array)) { - goto Error; - } - TraceBackwards(dist_array, dist_array_size, &chosen_path, &chosen_path_size); - if (!BackwardReferencesHashChainFollowChosenPath( - argb, cache_bits, chosen_path, chosen_path_size, hash_chain, refs)) { - goto Error; - } - ok = 1; - Error: - WebPSafeFree(dist_array); - return ok; -} - -static void BackwardReferences2DLocality(int xsize, - const VP8LBackwardRefs* const refs) { - VP8LRefsCursor c = VP8LRefsCursorInit(refs); - while (VP8LRefsCursorOk(&c)) { - if (PixOrCopyIsCopy(c.cur_pos)) { - const int dist = c.cur_pos->argb_or_distance; - const int transformed_dist = DistanceToPlaneCode(xsize, dist); - c.cur_pos->argb_or_distance = transformed_dist; - } - VP8LRefsCursorNext(&c); - } -} - -// Returns entropy for the given cache bits. -static double ComputeCacheEntropy(const uint32_t* argb, - const VP8LBackwardRefs* const refs, - int cache_bits) { - const int use_color_cache = (cache_bits > 0); - int cc_init = 0; - double entropy = MAX_ENTROPY; - const double kSmallPenaltyForLargeCache = 4.0; - VP8LColorCache hashers; - VP8LRefsCursor c = VP8LRefsCursorInit(refs); - VP8LHistogram* histo = VP8LAllocateHistogram(cache_bits); - if (histo == NULL) goto Error; - - if (use_color_cache) { - cc_init = VP8LColorCacheInit(&hashers, cache_bits); - if (!cc_init) goto Error; - } - if (!use_color_cache) { - while (VP8LRefsCursorOk(&c)) { - VP8LHistogramAddSinglePixOrCopy(histo, c.cur_pos); - VP8LRefsCursorNext(&c); - } - } else { - while (VP8LRefsCursorOk(&c)) { - const PixOrCopy* const v = c.cur_pos; - if (PixOrCopyIsLiteral(v)) { - const uint32_t pix = *argb++; - const uint32_t key = VP8LColorCacheGetIndex(&hashers, pix); - if (VP8LColorCacheLookup(&hashers, key) == pix) { - ++histo->literal_[NUM_LITERAL_CODES + NUM_LENGTH_CODES + key]; - } else { - VP8LColorCacheSet(&hashers, key, pix); - ++histo->blue_[pix & 0xff]; - ++histo->literal_[(pix >> 8) & 0xff]; - ++histo->red_[(pix >> 16) & 0xff]; - ++histo->alpha_[pix >> 24]; - } - } else { - int len = PixOrCopyLength(v); - int code, extra_bits; - VP8LPrefixEncodeBits(len, &code, &extra_bits); - ++histo->literal_[NUM_LITERAL_CODES + code]; - VP8LPrefixEncodeBits(PixOrCopyDistance(v), &code, &extra_bits); - ++histo->distance_[code]; - do { - VP8LColorCacheInsert(&hashers, *argb++); - } while(--len != 0); - } - VP8LRefsCursorNext(&c); - } - } - entropy = VP8LHistogramEstimateBits(histo) + - kSmallPenaltyForLargeCache * cache_bits; - Error: - if (cc_init) VP8LColorCacheClear(&hashers); - VP8LFreeHistogram(histo); - return entropy; -} - -// Evaluate optimal cache bits for the local color cache. -// The input *best_cache_bits sets the maximum cache bits to use (passing 0 -// implies disabling the local color cache). The local color cache is also -// disabled for the lower (<= 25) quality. -// Returns 0 in case of memory error. -static int CalculateBestCacheSize(const uint32_t* const argb, - int xsize, int ysize, int quality, - const VP8LHashChain* const hash_chain, - VP8LBackwardRefs* const refs, - int* const lz77_computed, - int* const best_cache_bits) { - int eval_low = 1; - int eval_high = 1; - double entropy_low = MAX_ENTROPY; - double entropy_high = MAX_ENTROPY; - const double cost_mul = 5e-4; - int cache_bits_low = 0; - int cache_bits_high = (quality <= 25) ? 0 : *best_cache_bits; - - assert(cache_bits_high <= MAX_COLOR_CACHE_BITS); - - *lz77_computed = 0; - if (cache_bits_high == 0) { - *best_cache_bits = 0; - // Local color cache is disabled. - return 1; - } - if (!BackwardReferencesLz77(xsize, ysize, argb, cache_bits_low, hash_chain, - refs)) { - return 0; - } - // Do a binary search to find the optimal entropy for cache_bits. - while (eval_low || eval_high) { - if (eval_low) { - entropy_low = ComputeCacheEntropy(argb, refs, cache_bits_low); - entropy_low += entropy_low * cache_bits_low * cost_mul; - eval_low = 0; - } - if (eval_high) { - entropy_high = ComputeCacheEntropy(argb, refs, cache_bits_high); - entropy_high += entropy_high * cache_bits_high * cost_mul; - eval_high = 0; - } - if (entropy_high < entropy_low) { - const int prev_cache_bits_low = cache_bits_low; - *best_cache_bits = cache_bits_high; - cache_bits_low = (cache_bits_low + cache_bits_high) / 2; - if (cache_bits_low != prev_cache_bits_low) eval_low = 1; - } else { - *best_cache_bits = cache_bits_low; - cache_bits_high = (cache_bits_low + cache_bits_high) / 2; - if (cache_bits_high != cache_bits_low) eval_high = 1; - } - } - *lz77_computed = 1; - return 1; -} - -// Update (in-place) backward references for specified cache_bits. -static int BackwardRefsWithLocalCache(const uint32_t* const argb, - int cache_bits, - VP8LBackwardRefs* const refs) { - int pixel_index = 0; - VP8LColorCache hashers; - VP8LRefsCursor c = VP8LRefsCursorInit(refs); - if (!VP8LColorCacheInit(&hashers, cache_bits)) return 0; - - while (VP8LRefsCursorOk(&c)) { - PixOrCopy* const v = c.cur_pos; - if (PixOrCopyIsLiteral(v)) { - const uint32_t argb_literal = v->argb_or_distance; - if (VP8LColorCacheContains(&hashers, argb_literal)) { - const int ix = VP8LColorCacheGetIndex(&hashers, argb_literal); - *v = PixOrCopyCreateCacheIdx(ix); - } else { - VP8LColorCacheInsert(&hashers, argb_literal); - } - ++pixel_index; - } else { - // refs was created without local cache, so it can not have cache indexes. - int k; - assert(PixOrCopyIsCopy(v)); - for (k = 0; k < v->len; ++k) { - VP8LColorCacheInsert(&hashers, argb[pixel_index++]); - } - } - VP8LRefsCursorNext(&c); - } - VP8LColorCacheClear(&hashers); - return 1; -} - -static VP8LBackwardRefs* GetBackwardReferencesLowEffort( - int width, int height, const uint32_t* const argb, - int* const cache_bits, const VP8LHashChain* const hash_chain, - VP8LBackwardRefs refs_array[2]) { - VP8LBackwardRefs* refs_lz77 = &refs_array[0]; - *cache_bits = 0; - if (!BackwardReferencesLz77(width, height, argb, 0, hash_chain, refs_lz77)) { - return NULL; - } - BackwardReferences2DLocality(width, refs_lz77); - return refs_lz77; -} - -static VP8LBackwardRefs* GetBackwardReferences( - int width, int height, const uint32_t* const argb, int quality, - int* const cache_bits, const VP8LHashChain* const hash_chain, - VP8LBackwardRefs refs_array[2]) { - int lz77_is_useful; - int lz77_computed; - double bit_cost_lz77, bit_cost_rle; - VP8LBackwardRefs* best = NULL; - VP8LBackwardRefs* refs_lz77 = &refs_array[0]; - VP8LBackwardRefs* refs_rle = &refs_array[1]; - VP8LHistogram* histo = NULL; - - if (!CalculateBestCacheSize(argb, width, height, quality, hash_chain, - refs_lz77, &lz77_computed, cache_bits)) { - goto Error; - } - - if (lz77_computed) { - // Transform refs_lz77 for the optimized cache_bits. - if (*cache_bits > 0) { - if (!BackwardRefsWithLocalCache(argb, *cache_bits, refs_lz77)) { - goto Error; - } - } - } else { - if (!BackwardReferencesLz77(width, height, argb, *cache_bits, hash_chain, - refs_lz77)) { - goto Error; - } - } - - if (!BackwardReferencesRle(width, height, argb, *cache_bits, refs_rle)) { - goto Error; - } - - histo = VP8LAllocateHistogram(*cache_bits); - if (histo == NULL) goto Error; - - { - // Evaluate LZ77 coding. - VP8LHistogramCreate(histo, refs_lz77, *cache_bits); - bit_cost_lz77 = VP8LHistogramEstimateBits(histo); - // Evaluate RLE coding. - VP8LHistogramCreate(histo, refs_rle, *cache_bits); - bit_cost_rle = VP8LHistogramEstimateBits(histo); - // Decide if LZ77 is useful. - lz77_is_useful = (bit_cost_lz77 < bit_cost_rle); - } - - // Choose appropriate backward reference. - if (lz77_is_useful) { - // TraceBackwards is costly. Don't execute it at lower quality. - const int try_lz77_trace_backwards = (quality >= 25); - best = refs_lz77; // default guess: lz77 is better - if (try_lz77_trace_backwards) { - VP8LBackwardRefs* const refs_trace = refs_rle; - if (!VP8LBackwardRefsCopy(refs_lz77, refs_trace)) { - best = NULL; - goto Error; - } - if (BackwardReferencesTraceBackwards(width, height, argb, quality, - *cache_bits, hash_chain, - refs_trace)) { - double bit_cost_trace; - // Evaluate LZ77 coding. - VP8LHistogramCreate(histo, refs_trace, *cache_bits); - bit_cost_trace = VP8LHistogramEstimateBits(histo); - if (bit_cost_trace < bit_cost_lz77) { - best = refs_trace; - } - } - } - } else { - best = refs_rle; - } - - BackwardReferences2DLocality(width, best); - - Error: - VP8LFreeHistogram(histo); - return best; -} - -VP8LBackwardRefs* VP8LGetBackwardReferences( - int width, int height, const uint32_t* const argb, int quality, - int low_effort, int* const cache_bits, - const VP8LHashChain* const hash_chain, VP8LBackwardRefs refs_array[2]) { - if (low_effort) { - return GetBackwardReferencesLowEffort(width, height, argb, cache_bits, - hash_chain, refs_array); - } else { - return GetBackwardReferences(width, height, argb, quality, cache_bits, - hash_chain, refs_array); - } -} diff --git a/drivers/webp/enc/backward_references.h b/drivers/webp/enc/backward_references.h deleted file mode 100644 index b72a01fb0e..0000000000 --- a/drivers/webp/enc/backward_references.h +++ /dev/null @@ -1,206 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Author: Jyrki Alakuijala (jyrki@google.com) -// - -#ifndef WEBP_ENC_BACKWARD_REFERENCES_H_ -#define WEBP_ENC_BACKWARD_REFERENCES_H_ - -#include <assert.h> -#include <stdlib.h> -#include "webp/types.h" -#include "webp/format_constants.h" - -#ifdef __cplusplus -extern "C" { -#endif - -// The maximum allowed limit is 11. -#define MAX_COLOR_CACHE_BITS 10 - -// ----------------------------------------------------------------------------- -// PixOrCopy - -enum Mode { - kLiteral, - kCacheIdx, - kCopy, - kNone -}; - -typedef struct { - // mode as uint8_t to make the memory layout to be exactly 8 bytes. - uint8_t mode; - uint16_t len; - uint32_t argb_or_distance; -} PixOrCopy; - -static WEBP_INLINE PixOrCopy PixOrCopyCreateCopy(uint32_t distance, - uint16_t len) { - PixOrCopy retval; - retval.mode = kCopy; - retval.argb_or_distance = distance; - retval.len = len; - return retval; -} - -static WEBP_INLINE PixOrCopy PixOrCopyCreateCacheIdx(int idx) { - PixOrCopy retval; - assert(idx >= 0); - assert(idx < (1 << MAX_COLOR_CACHE_BITS)); - retval.mode = kCacheIdx; - retval.argb_or_distance = idx; - retval.len = 1; - return retval; -} - -static WEBP_INLINE PixOrCopy PixOrCopyCreateLiteral(uint32_t argb) { - PixOrCopy retval; - retval.mode = kLiteral; - retval.argb_or_distance = argb; - retval.len = 1; - return retval; -} - -static WEBP_INLINE int PixOrCopyIsLiteral(const PixOrCopy* const p) { - return (p->mode == kLiteral); -} - -static WEBP_INLINE int PixOrCopyIsCacheIdx(const PixOrCopy* const p) { - return (p->mode == kCacheIdx); -} - -static WEBP_INLINE int PixOrCopyIsCopy(const PixOrCopy* const p) { - return (p->mode == kCopy); -} - -static WEBP_INLINE uint32_t PixOrCopyLiteral(const PixOrCopy* const p, - int component) { - assert(p->mode == kLiteral); - return (p->argb_or_distance >> (component * 8)) & 0xff; -} - -static WEBP_INLINE uint32_t PixOrCopyLength(const PixOrCopy* const p) { - return p->len; -} - -static WEBP_INLINE uint32_t PixOrCopyArgb(const PixOrCopy* const p) { - assert(p->mode == kLiteral); - return p->argb_or_distance; -} - -static WEBP_INLINE uint32_t PixOrCopyCacheIdx(const PixOrCopy* const p) { - assert(p->mode == kCacheIdx); - assert(p->argb_or_distance < (1U << MAX_COLOR_CACHE_BITS)); - return p->argb_or_distance; -} - -static WEBP_INLINE uint32_t PixOrCopyDistance(const PixOrCopy* const p) { - assert(p->mode == kCopy); - return p->argb_or_distance; -} - -// ----------------------------------------------------------------------------- -// VP8LHashChain - -#define HASH_BITS 18 -#define HASH_SIZE (1 << HASH_BITS) - -typedef struct VP8LHashChain VP8LHashChain; -struct VP8LHashChain { - // The 20 most significant bits contain the offset at which the best match - // is found. These 20 bits are the limit defined by GetWindowSizeForHashChain - // (through WINDOW_SIZE = 1<<20). - // The lower 12 bits contain the length of the match. The 12 bit limit is - // defined in MaxFindCopyLength with MAX_LENGTH=4096. - uint32_t* offset_length_; - // This is the maximum size of the hash_chain that can be constructed. - // Typically this is the pixel count (width x height) for a given image. - int size_; -}; - -// Must be called first, to set size. -int VP8LHashChainInit(VP8LHashChain* const p, int size); -// Pre-compute the best matches for argb. -int VP8LHashChainFill(VP8LHashChain* const p, int quality, - const uint32_t* const argb, int xsize, int ysize); -void VP8LHashChainClear(VP8LHashChain* const p); // release memory - -// ----------------------------------------------------------------------------- -// VP8LBackwardRefs (block-based backward-references storage) - -// maximum number of reference blocks the image will be segmented into -#define MAX_REFS_BLOCK_PER_IMAGE 16 - -typedef struct PixOrCopyBlock PixOrCopyBlock; // forward declaration -typedef struct VP8LBackwardRefs VP8LBackwardRefs; - -// Container for blocks chain -struct VP8LBackwardRefs { - int block_size_; // common block-size - int error_; // set to true if some memory error occurred - PixOrCopyBlock* refs_; // list of currently used blocks - PixOrCopyBlock** tail_; // for list recycling - PixOrCopyBlock* free_blocks_; // free-list - PixOrCopyBlock* last_block_; // used for adding new refs (internal) -}; - -// Initialize the object. 'block_size' is the common block size to store -// references (typically, width * height / MAX_REFS_BLOCK_PER_IMAGE). -void VP8LBackwardRefsInit(VP8LBackwardRefs* const refs, int block_size); -// Release memory for backward references. -void VP8LBackwardRefsClear(VP8LBackwardRefs* const refs); -// Copies the 'src' backward refs to the 'dst'. Returns 0 in case of error. -int VP8LBackwardRefsCopy(const VP8LBackwardRefs* const src, - VP8LBackwardRefs* const dst); - -// Cursor for iterating on references content -typedef struct { - // public: - PixOrCopy* cur_pos; // current position - // private: - PixOrCopyBlock* cur_block_; // current block in the refs list - const PixOrCopy* last_pos_; // sentinel for switching to next block -} VP8LRefsCursor; - -// Returns a cursor positioned at the beginning of the references list. -VP8LRefsCursor VP8LRefsCursorInit(const VP8LBackwardRefs* const refs); -// Returns true if cursor is pointing at a valid position. -static WEBP_INLINE int VP8LRefsCursorOk(const VP8LRefsCursor* const c) { - return (c->cur_pos != NULL); -} -// Move to next block of references. Internal, not to be called directly. -void VP8LRefsCursorNextBlock(VP8LRefsCursor* const c); -// Move to next position, or NULL. Should not be called if !VP8LRefsCursorOk(). -static WEBP_INLINE void VP8LRefsCursorNext(VP8LRefsCursor* const c) { - assert(c != NULL); - assert(VP8LRefsCursorOk(c)); - if (++c->cur_pos == c->last_pos_) VP8LRefsCursorNextBlock(c); -} - -// ----------------------------------------------------------------------------- -// Main entry points - -// Evaluates best possible backward references for specified quality. -// The input cache_bits to 'VP8LGetBackwardReferences' sets the maximum cache -// bits to use (passing 0 implies disabling the local color cache). -// The optimal cache bits is evaluated and set for the *cache_bits parameter. -// The return value is the pointer to the best of the two backward refs viz, -// refs[0] or refs[1]. -VP8LBackwardRefs* VP8LGetBackwardReferences( - int width, int height, const uint32_t* const argb, int quality, - int low_effort, int* const cache_bits, - const VP8LHashChain* const hash_chain, VP8LBackwardRefs refs[2]); - -#ifdef __cplusplus -} -#endif - -#endif // WEBP_ENC_BACKWARD_REFERENCES_H_ diff --git a/drivers/webp/enc/config.c b/drivers/webp/enc/config.c deleted file mode 100644 index 8fd2276cb5..0000000000 --- a/drivers/webp/enc/config.c +++ /dev/null @@ -1,173 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Coding tools configuration -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "webp/encode.h" - -//------------------------------------------------------------------------------ -// WebPConfig -//------------------------------------------------------------------------------ - -int WebPConfigInitInternal(WebPConfig* config, - WebPPreset preset, float quality, int version) { - if (WEBP_ABI_IS_INCOMPATIBLE(version, WEBP_ENCODER_ABI_VERSION)) { - return 0; // caller/system version mismatch! - } - if (config == NULL) return 0; - - config->quality = quality; - config->target_size = 0; - config->target_PSNR = 0.; - config->method = 4; - config->sns_strength = 50; - config->filter_strength = 60; // mid-filtering - config->filter_sharpness = 0; - config->filter_type = 1; // default: strong (so U/V is filtered too) - config->partitions = 0; - config->segments = 4; - config->pass = 1; - config->show_compressed = 0; - config->preprocessing = 0; - config->autofilter = 0; - config->partition_limit = 0; - config->alpha_compression = 1; - config->alpha_filtering = 1; - config->alpha_quality = 100; - config->lossless = 0; - config->exact = 0; - config->image_hint = WEBP_HINT_DEFAULT; - config->emulate_jpeg_size = 0; - config->thread_level = 0; - config->low_memory = 0; - config->near_lossless = 100; -#ifdef WEBP_EXPERIMENTAL_FEATURES - config->delta_palettization = 0; -#endif // WEBP_EXPERIMENTAL_FEATURES - - // TODO(skal): tune. - switch (preset) { - case WEBP_PRESET_PICTURE: - config->sns_strength = 80; - config->filter_sharpness = 4; - config->filter_strength = 35; - config->preprocessing &= ~2; // no dithering - break; - case WEBP_PRESET_PHOTO: - config->sns_strength = 80; - config->filter_sharpness = 3; - config->filter_strength = 30; - config->preprocessing |= 2; - break; - case WEBP_PRESET_DRAWING: - config->sns_strength = 25; - config->filter_sharpness = 6; - config->filter_strength = 10; - break; - case WEBP_PRESET_ICON: - config->sns_strength = 0; - config->filter_strength = 0; // disable filtering to retain sharpness - config->preprocessing &= ~2; // no dithering - break; - case WEBP_PRESET_TEXT: - config->sns_strength = 0; - config->filter_strength = 0; // disable filtering to retain sharpness - config->preprocessing &= ~2; // no dithering - config->segments = 2; - break; - case WEBP_PRESET_DEFAULT: - default: - break; - } - return WebPValidateConfig(config); -} - -int WebPValidateConfig(const WebPConfig* config) { - if (config == NULL) return 0; - if (config->quality < 0 || config->quality > 100) - return 0; - if (config->target_size < 0) - return 0; - if (config->target_PSNR < 0) - return 0; - if (config->method < 0 || config->method > 6) - return 0; - if (config->segments < 1 || config->segments > 4) - return 0; - if (config->sns_strength < 0 || config->sns_strength > 100) - return 0; - if (config->filter_strength < 0 || config->filter_strength > 100) - return 0; - if (config->filter_sharpness < 0 || config->filter_sharpness > 7) - return 0; - if (config->filter_type < 0 || config->filter_type > 1) - return 0; - if (config->autofilter < 0 || config->autofilter > 1) - return 0; - if (config->pass < 1 || config->pass > 10) - return 0; - if (config->show_compressed < 0 || config->show_compressed > 1) - return 0; - if (config->preprocessing < 0 || config->preprocessing > 7) - return 0; - if (config->partitions < 0 || config->partitions > 3) - return 0; - if (config->partition_limit < 0 || config->partition_limit > 100) - return 0; - if (config->alpha_compression < 0) - return 0; - if (config->alpha_filtering < 0) - return 0; - if (config->alpha_quality < 0 || config->alpha_quality > 100) - return 0; - if (config->lossless < 0 || config->lossless > 1) - return 0; - if (config->near_lossless < 0 || config->near_lossless > 100) - return 0; - if (config->image_hint >= WEBP_HINT_LAST) - return 0; - if (config->emulate_jpeg_size < 0 || config->emulate_jpeg_size > 1) - return 0; - if (config->thread_level < 0 || config->thread_level > 1) - return 0; - if (config->low_memory < 0 || config->low_memory > 1) - return 0; - if (config->exact < 0 || config->exact > 1) - return 0; -#ifdef WEBP_EXPERIMENTAL_FEATURES - if (config->delta_palettization < 0 || config->delta_palettization > 1) - return 0; -#endif // WEBP_EXPERIMENTAL_FEATURES - return 1; -} - -//------------------------------------------------------------------------------ - -#define MAX_LEVEL 9 - -// Mapping between -z level and -m / -q parameter settings. -static const struct { - uint8_t method_; - uint8_t quality_; -} kLosslessPresets[MAX_LEVEL + 1] = { - { 0, 0 }, { 1, 20 }, { 2, 25 }, { 3, 30 }, { 3, 50 }, - { 4, 50 }, { 4, 75 }, { 4, 90 }, { 5, 90 }, { 6, 100 } -}; - -int WebPConfigLosslessPreset(WebPConfig* config, int level) { - if (config == NULL || level < 0 || level > MAX_LEVEL) return 0; - config->lossless = 1; - config->method = kLosslessPresets[level].method_; - config->quality = kLosslessPresets[level].quality_; - return 1; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/enc/cost.c b/drivers/webp/enc/cost.c deleted file mode 100644 index ae7fe01388..0000000000 --- a/drivers/webp/enc/cost.c +++ /dev/null @@ -1,354 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Cost tables for level and modes -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./cost.h" - -//------------------------------------------------------------------------------ -// Level cost tables - -// For each given level, the following table gives the pattern of contexts to -// use for coding it (in [][0]) as well as the bit value to use for each -// context (in [][1]). -const uint16_t VP8LevelCodes[MAX_VARIABLE_LEVEL][2] = { - {0x001, 0x000}, {0x007, 0x001}, {0x00f, 0x005}, - {0x00f, 0x00d}, {0x033, 0x003}, {0x033, 0x003}, {0x033, 0x023}, - {0x033, 0x023}, {0x033, 0x023}, {0x033, 0x023}, {0x0d3, 0x013}, - {0x0d3, 0x013}, {0x0d3, 0x013}, {0x0d3, 0x013}, {0x0d3, 0x013}, - {0x0d3, 0x013}, {0x0d3, 0x013}, {0x0d3, 0x013}, {0x0d3, 0x093}, - {0x0d3, 0x093}, {0x0d3, 0x093}, {0x0d3, 0x093}, {0x0d3, 0x093}, - {0x0d3, 0x093}, {0x0d3, 0x093}, {0x0d3, 0x093}, {0x0d3, 0x093}, - {0x0d3, 0x093}, {0x0d3, 0x093}, {0x0d3, 0x093}, {0x0d3, 0x093}, - {0x0d3, 0x093}, {0x0d3, 0x093}, {0x0d3, 0x093}, {0x153, 0x053}, - {0x153, 0x053}, {0x153, 0x053}, {0x153, 0x053}, {0x153, 0x053}, - {0x153, 0x053}, {0x153, 0x053}, {0x153, 0x053}, {0x153, 0x053}, - {0x153, 0x053}, {0x153, 0x053}, {0x153, 0x053}, {0x153, 0x053}, - {0x153, 0x053}, {0x153, 0x053}, {0x153, 0x053}, {0x153, 0x053}, - {0x153, 0x053}, {0x153, 0x053}, {0x153, 0x053}, {0x153, 0x053}, - {0x153, 0x053}, {0x153, 0x053}, {0x153, 0x053}, {0x153, 0x053}, - {0x153, 0x053}, {0x153, 0x053}, {0x153, 0x053}, {0x153, 0x053}, - {0x153, 0x053}, {0x153, 0x053}, {0x153, 0x053}, {0x153, 0x153} -}; - -static int VariableLevelCost(int level, const uint8_t probas[NUM_PROBAS]) { - int pattern = VP8LevelCodes[level - 1][0]; - int bits = VP8LevelCodes[level - 1][1]; - int cost = 0; - int i; - for (i = 2; pattern; ++i) { - if (pattern & 1) { - cost += VP8BitCost(bits & 1, probas[i]); - } - bits >>= 1; - pattern >>= 1; - } - return cost; -} - -//------------------------------------------------------------------------------ -// Pre-calc level costs once for all - -void VP8CalculateLevelCosts(VP8EncProba* const proba) { - int ctype, band, ctx; - - if (!proba->dirty_) return; // nothing to do. - - for (ctype = 0; ctype < NUM_TYPES; ++ctype) { - int n; - for (band = 0; band < NUM_BANDS; ++band) { - for (ctx = 0; ctx < NUM_CTX; ++ctx) { - const uint8_t* const p = proba->coeffs_[ctype][band][ctx]; - uint16_t* const table = proba->level_cost_[ctype][band][ctx]; - const int cost0 = (ctx > 0) ? VP8BitCost(1, p[0]) : 0; - const int cost_base = VP8BitCost(1, p[1]) + cost0; - int v; - table[0] = VP8BitCost(0, p[1]) + cost0; - for (v = 1; v <= MAX_VARIABLE_LEVEL; ++v) { - table[v] = cost_base + VariableLevelCost(v, p); - } - // Starting at level 67 and up, the variable part of the cost is - // actually constant. - } - } - for (n = 0; n < 16; ++n) { // replicate bands. We don't need to sentinel. - for (ctx = 0; ctx < NUM_CTX; ++ctx) { - proba->remapped_costs_[ctype][n][ctx] = - proba->level_cost_[ctype][VP8EncBands[n]][ctx]; - } - } - } - proba->dirty_ = 0; -} - -//------------------------------------------------------------------------------ -// Mode cost tables. - -// These are the fixed probabilities (in the coding trees) turned into bit-cost -// by calling VP8BitCost(). -const uint16_t VP8FixedCostsUV[4] = { 302, 984, 439, 642 }; -// note: these values include the fixed VP8BitCost(1, 145) mode selection cost. -const uint16_t VP8FixedCostsI16[4] = { 663, 919, 872, 919 }; -const uint16_t VP8FixedCostsI4[NUM_BMODES][NUM_BMODES][NUM_BMODES] = { - { { 40, 1151, 1723, 1874, 2103, 2019, 1628, 1777, 2226, 2137 }, - { 192, 469, 1296, 1308, 1849, 1794, 1781, 1703, 1713, 1522 }, - { 142, 910, 762, 1684, 1849, 1576, 1460, 1305, 1801, 1657 }, - { 559, 641, 1370, 421, 1182, 1569, 1612, 1725, 863, 1007 }, - { 299, 1059, 1256, 1108, 636, 1068, 1581, 1883, 869, 1142 }, - { 277, 1111, 707, 1362, 1089, 672, 1603, 1541, 1545, 1291 }, - { 214, 781, 1609, 1303, 1632, 2229, 726, 1560, 1713, 918 }, - { 152, 1037, 1046, 1759, 1983, 2174, 1358, 742, 1740, 1390 }, - { 512, 1046, 1420, 753, 752, 1297, 1486, 1613, 460, 1207 }, - { 424, 827, 1362, 719, 1462, 1202, 1199, 1476, 1199, 538 } }, - { { 240, 402, 1134, 1491, 1659, 1505, 1517, 1555, 1979, 2099 }, - { 467, 242, 960, 1232, 1714, 1620, 1834, 1570, 1676, 1391 }, - { 500, 455, 463, 1507, 1699, 1282, 1564, 982, 2114, 2114 }, - { 672, 643, 1372, 331, 1589, 1667, 1453, 1938, 996, 876 }, - { 458, 783, 1037, 911, 738, 968, 1165, 1518, 859, 1033 }, - { 504, 815, 504, 1139, 1219, 719, 1506, 1085, 1268, 1268 }, - { 333, 630, 1445, 1239, 1883, 3672, 799, 1548, 1865, 598 }, - { 399, 644, 746, 1342, 1856, 1350, 1493, 613, 1855, 1015 }, - { 622, 749, 1205, 608, 1066, 1408, 1290, 1406, 546, 971 }, - { 500, 753, 1041, 668, 1230, 1617, 1297, 1425, 1383, 523 } }, - { { 394, 553, 523, 1502, 1536, 981, 1608, 1142, 1666, 2181 }, - { 655, 430, 375, 1411, 1861, 1220, 1677, 1135, 1978, 1553 }, - { 690, 640, 245, 1954, 2070, 1194, 1528, 982, 1972, 2232 }, - { 559, 834, 741, 867, 1131, 980, 1225, 852, 1092, 784 }, - { 690, 875, 516, 959, 673, 894, 1056, 1190, 1528, 1126 }, - { 740, 951, 384, 1277, 1177, 492, 1579, 1155, 1846, 1513 }, - { 323, 775, 1062, 1776, 3062, 1274, 813, 1188, 1372, 655 }, - { 488, 971, 484, 1767, 1515, 1775, 1115, 503, 1539, 1461 }, - { 740, 1006, 998, 709, 851, 1230, 1337, 788, 741, 721 }, - { 522, 1073, 573, 1045, 1346, 887, 1046, 1146, 1203, 697 } }, - { { 105, 864, 1442, 1009, 1934, 1840, 1519, 1920, 1673, 1579 }, - { 534, 305, 1193, 683, 1388, 2164, 1802, 1894, 1264, 1170 }, - { 305, 518, 877, 1108, 1426, 3215, 1425, 1064, 1320, 1242 }, - { 683, 732, 1927, 257, 1493, 2048, 1858, 1552, 1055, 947 }, - { 394, 814, 1024, 660, 959, 1556, 1282, 1289, 893, 1047 }, - { 528, 615, 996, 940, 1201, 635, 1094, 2515, 803, 1358 }, - { 347, 614, 1609, 1187, 3133, 1345, 1007, 1339, 1017, 667 }, - { 218, 740, 878, 1605, 3650, 3650, 1345, 758, 1357, 1617 }, - { 672, 750, 1541, 558, 1257, 1599, 1870, 2135, 402, 1087 }, - { 592, 684, 1161, 430, 1092, 1497, 1475, 1489, 1095, 822 } }, - { { 228, 1056, 1059, 1368, 752, 982, 1512, 1518, 987, 1782 }, - { 494, 514, 818, 942, 965, 892, 1610, 1356, 1048, 1363 }, - { 512, 648, 591, 1042, 761, 991, 1196, 1454, 1309, 1463 }, - { 683, 749, 1043, 676, 841, 1396, 1133, 1138, 654, 939 }, - { 622, 1101, 1126, 994, 361, 1077, 1203, 1318, 877, 1219 }, - { 631, 1068, 857, 1650, 651, 477, 1650, 1419, 828, 1170 }, - { 555, 727, 1068, 1335, 3127, 1339, 820, 1331, 1077, 429 }, - { 504, 879, 624, 1398, 889, 889, 1392, 808, 891, 1406 }, - { 683, 1602, 1289, 977, 578, 983, 1280, 1708, 406, 1122 }, - { 399, 865, 1433, 1070, 1072, 764, 968, 1477, 1223, 678 } }, - { { 333, 760, 935, 1638, 1010, 529, 1646, 1410, 1472, 2219 }, - { 512, 494, 750, 1160, 1215, 610, 1870, 1868, 1628, 1169 }, - { 572, 646, 492, 1934, 1208, 603, 1580, 1099, 1398, 1995 }, - { 786, 789, 942, 581, 1018, 951, 1599, 1207, 731, 768 }, - { 690, 1015, 672, 1078, 582, 504, 1693, 1438, 1108, 2897 }, - { 768, 1267, 571, 2005, 1243, 244, 2881, 1380, 1786, 1453 }, - { 452, 899, 1293, 903, 1311, 3100, 465, 1311, 1319, 813 }, - { 394, 927, 942, 1103, 1358, 1104, 946, 593, 1363, 1109 }, - { 559, 1005, 1007, 1016, 658, 1173, 1021, 1164, 623, 1028 }, - { 564, 796, 632, 1005, 1014, 863, 2316, 1268, 938, 764 } }, - { { 266, 606, 1098, 1228, 1497, 1243, 948, 1030, 1734, 1461 }, - { 366, 585, 901, 1060, 1407, 1247, 876, 1134, 1620, 1054 }, - { 452, 565, 542, 1729, 1479, 1479, 1016, 886, 2938, 1150 }, - { 555, 1088, 1533, 950, 1354, 895, 834, 1019, 1021, 496 }, - { 704, 815, 1193, 971, 973, 640, 1217, 2214, 832, 578 }, - { 672, 1245, 579, 871, 875, 774, 872, 1273, 1027, 949 }, - { 296, 1134, 2050, 1784, 1636, 3425, 442, 1550, 2076, 722 }, - { 342, 982, 1259, 1846, 1848, 1848, 622, 568, 1847, 1052 }, - { 555, 1064, 1304, 828, 746, 1343, 1075, 1329, 1078, 494 }, - { 288, 1167, 1285, 1174, 1639, 1639, 833, 2254, 1304, 509 } }, - { { 342, 719, 767, 1866, 1757, 1270, 1246, 550, 1746, 2151 }, - { 483, 653, 694, 1509, 1459, 1410, 1218, 507, 1914, 1266 }, - { 488, 757, 447, 2979, 1813, 1268, 1654, 539, 1849, 2109 }, - { 522, 1097, 1085, 851, 1365, 1111, 851, 901, 961, 605 }, - { 709, 716, 841, 728, 736, 945, 941, 862, 2845, 1057 }, - { 512, 1323, 500, 1336, 1083, 681, 1342, 717, 1604, 1350 }, - { 452, 1155, 1372, 1900, 1501, 3290, 311, 944, 1919, 922 }, - { 403, 1520, 977, 2132, 1733, 3522, 1076, 276, 3335, 1547 }, - { 559, 1374, 1101, 615, 673, 2462, 974, 795, 984, 984 }, - { 547, 1122, 1062, 812, 1410, 951, 1140, 622, 1268, 651 } }, - { { 165, 982, 1235, 938, 1334, 1366, 1659, 1578, 964, 1612 }, - { 592, 422, 925, 847, 1139, 1112, 1387, 2036, 861, 1041 }, - { 403, 837, 732, 770, 941, 1658, 1250, 809, 1407, 1407 }, - { 896, 874, 1071, 381, 1568, 1722, 1437, 2192, 480, 1035 }, - { 640, 1098, 1012, 1032, 684, 1382, 1581, 2106, 416, 865 }, - { 559, 1005, 819, 914, 710, 770, 1418, 920, 838, 1435 }, - { 415, 1258, 1245, 870, 1278, 3067, 770, 1021, 1287, 522 }, - { 406, 990, 601, 1009, 1265, 1265, 1267, 759, 1017, 1277 }, - { 968, 1182, 1329, 788, 1032, 1292, 1705, 1714, 203, 1403 }, - { 732, 877, 1279, 471, 901, 1161, 1545, 1294, 755, 755 } }, - { { 111, 931, 1378, 1185, 1933, 1648, 1148, 1714, 1873, 1307 }, - { 406, 414, 1030, 1023, 1910, 1404, 1313, 1647, 1509, 793 }, - { 342, 640, 575, 1088, 1241, 1349, 1161, 1350, 1756, 1502 }, - { 559, 766, 1185, 357, 1682, 1428, 1329, 1897, 1219, 802 }, - { 473, 909, 1164, 771, 719, 2508, 1427, 1432, 722, 782 }, - { 342, 892, 785, 1145, 1150, 794, 1296, 1550, 973, 1057 }, - { 208, 1036, 1326, 1343, 1606, 3395, 815, 1455, 1618, 712 }, - { 228, 928, 890, 1046, 3499, 1711, 994, 829, 1720, 1318 }, - { 768, 724, 1058, 636, 991, 1075, 1319, 1324, 616, 825 }, - { 305, 1167, 1358, 899, 1587, 1587, 987, 1988, 1332, 501 } } -}; - -//------------------------------------------------------------------------------ -// helper functions for residuals struct VP8Residual. - -void VP8InitResidual(int first, int coeff_type, - VP8Encoder* const enc, VP8Residual* const res) { - res->coeff_type = coeff_type; - res->prob = enc->proba_.coeffs_[coeff_type]; - res->stats = enc->proba_.stats_[coeff_type]; - res->costs = enc->proba_.remapped_costs_[coeff_type]; - res->first = first; -} - -//------------------------------------------------------------------------------ -// Mode costs - -int VP8GetCostLuma4(VP8EncIterator* const it, const int16_t levels[16]) { - const int x = (it->i4_ & 3), y = (it->i4_ >> 2); - VP8Residual res; - VP8Encoder* const enc = it->enc_; - int R = 0; - int ctx; - - VP8InitResidual(0, 3, enc, &res); - ctx = it->top_nz_[x] + it->left_nz_[y]; - VP8SetResidualCoeffs(levels, &res); - R += VP8GetResidualCost(ctx, &res); - return R; -} - -int VP8GetCostLuma16(VP8EncIterator* const it, const VP8ModeScore* const rd) { - VP8Residual res; - VP8Encoder* const enc = it->enc_; - int x, y; - int R = 0; - - VP8IteratorNzToBytes(it); // re-import the non-zero context - - // DC - VP8InitResidual(0, 1, enc, &res); - VP8SetResidualCoeffs(rd->y_dc_levels, &res); - R += VP8GetResidualCost(it->top_nz_[8] + it->left_nz_[8], &res); - - // AC - VP8InitResidual(1, 0, enc, &res); - for (y = 0; y < 4; ++y) { - for (x = 0; x < 4; ++x) { - const int ctx = it->top_nz_[x] + it->left_nz_[y]; - VP8SetResidualCoeffs(rd->y_ac_levels[x + y * 4], &res); - R += VP8GetResidualCost(ctx, &res); - it->top_nz_[x] = it->left_nz_[y] = (res.last >= 0); - } - } - return R; -} - -int VP8GetCostUV(VP8EncIterator* const it, const VP8ModeScore* const rd) { - VP8Residual res; - VP8Encoder* const enc = it->enc_; - int ch, x, y; - int R = 0; - - VP8IteratorNzToBytes(it); // re-import the non-zero context - - VP8InitResidual(0, 2, enc, &res); - for (ch = 0; ch <= 2; ch += 2) { - for (y = 0; y < 2; ++y) { - for (x = 0; x < 2; ++x) { - const int ctx = it->top_nz_[4 + ch + x] + it->left_nz_[4 + ch + y]; - VP8SetResidualCoeffs(rd->uv_levels[ch * 2 + x + y * 2], &res); - R += VP8GetResidualCost(ctx, &res); - it->top_nz_[4 + ch + x] = it->left_nz_[4 + ch + y] = (res.last >= 0); - } - } - } - return R; -} - - -//------------------------------------------------------------------------------ -// Recording of token probabilities. - -// Record proba context used -static int Record(int bit, proba_t* const stats) { - proba_t p = *stats; - if (p >= 0xffff0000u) { // an overflow is inbound. - p = ((p + 1u) >> 1) & 0x7fff7fffu; // -> divide the stats by 2. - } - // record bit count (lower 16 bits) and increment total count (upper 16 bits). - p += 0x00010000u + bit; - *stats = p; - return bit; -} - -// We keep the table-free variant around for reference, in case. -#define USE_LEVEL_CODE_TABLE - -// Simulate block coding, but only record statistics. -// Note: no need to record the fixed probas. -int VP8RecordCoeffs(int ctx, const VP8Residual* const res) { - int n = res->first; - // should be stats[VP8EncBands[n]], but it's equivalent for n=0 or 1 - proba_t* s = res->stats[n][ctx]; - if (res->last < 0) { - Record(0, s + 0); - return 0; - } - while (n <= res->last) { - int v; - Record(1, s + 0); // order of record doesn't matter - while ((v = res->coeffs[n++]) == 0) { - Record(0, s + 1); - s = res->stats[VP8EncBands[n]][0]; - } - Record(1, s + 1); - if (!Record(2u < (unsigned int)(v + 1), s + 2)) { // v = -1 or 1 - s = res->stats[VP8EncBands[n]][1]; - } else { - v = abs(v); -#if !defined(USE_LEVEL_CODE_TABLE) - if (!Record(v > 4, s + 3)) { - if (Record(v != 2, s + 4)) - Record(v == 4, s + 5); - } else if (!Record(v > 10, s + 6)) { - Record(v > 6, s + 7); - } else if (!Record((v >= 3 + (8 << 2)), s + 8)) { - Record((v >= 3 + (8 << 1)), s + 9); - } else { - Record((v >= 3 + (8 << 3)), s + 10); - } -#else - if (v > MAX_VARIABLE_LEVEL) { - v = MAX_VARIABLE_LEVEL; - } - - { - const int bits = VP8LevelCodes[v - 1][1]; - int pattern = VP8LevelCodes[v - 1][0]; - int i; - for (i = 0; (pattern >>= 1) != 0; ++i) { - const int mask = 2 << i; - if (pattern & 1) Record(!!(bits & mask), s + 3 + i); - } - } -#endif - s = res->stats[VP8EncBands[n]][2]; - } - } - if (n < 16) Record(0, s + 0); - return 1; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/enc/cost.h b/drivers/webp/enc/cost.h deleted file mode 100644 index 20960d6d74..0000000000 --- a/drivers/webp/enc/cost.h +++ /dev/null @@ -1,68 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Cost tables for level and modes. -// -// Author: Skal (pascal.massimino@gmail.com) - -#ifndef WEBP_ENC_COST_H_ -#define WEBP_ENC_COST_H_ - -#include <assert.h> -#include <stdlib.h> -#include "./vp8enci.h" - -#ifdef __cplusplus -extern "C" { -#endif - -// On-the-fly info about the current set of residuals. Handy to avoid -// passing zillions of params. -typedef struct VP8Residual VP8Residual; -struct VP8Residual { - int first; - int last; - const int16_t* coeffs; - - int coeff_type; - ProbaArray* prob; - StatsArray* stats; - CostArrayPtr costs; -}; - -void VP8InitResidual(int first, int coeff_type, - VP8Encoder* const enc, VP8Residual* const res); - -int VP8RecordCoeffs(int ctx, const VP8Residual* const res); - -// Cost of coding one event with probability 'proba'. -static WEBP_INLINE int VP8BitCost(int bit, uint8_t proba) { - return !bit ? VP8EntropyCost[proba] : VP8EntropyCost[255 - proba]; -} - -// Level cost calculations -extern const uint16_t VP8LevelCodes[MAX_VARIABLE_LEVEL][2]; -void VP8CalculateLevelCosts(VP8EncProba* const proba); -static WEBP_INLINE int VP8LevelCost(const uint16_t* const table, int level) { - return VP8LevelFixedCosts[level] - + table[(level > MAX_VARIABLE_LEVEL) ? MAX_VARIABLE_LEVEL : level]; -} - -// Mode costs -extern const uint16_t VP8FixedCostsUV[4]; -extern const uint16_t VP8FixedCostsI16[4]; -extern const uint16_t VP8FixedCostsI4[NUM_BMODES][NUM_BMODES][NUM_BMODES]; - -//------------------------------------------------------------------------------ - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_ENC_COST_H_ */ diff --git a/drivers/webp/enc/delta_palettization.c b/drivers/webp/enc/delta_palettization.c deleted file mode 100644 index 8bd3a3d233..0000000000 --- a/drivers/webp/enc/delta_palettization.c +++ /dev/null @@ -1,455 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Author: Mislav Bradac (mislavm@google.com) -// - -#include "./delta_palettization.h" - -#ifdef WEBP_EXPERIMENTAL_FEATURES -#include "webp/types.h" -#include "../dsp/lossless.h" - -#define MK_COL(r, g, b) (((r) << 16) + ((g) << 8) + (b)) - -// Format allows palette up to 256 entries, but more palette entries produce -// bigger entropy. In the future it will probably be useful to add more entries -// that are far from the origin of the palette or choose remaining entries -// dynamically. -#define DELTA_PALETTE_SIZE 226 - -// Palette used for delta_palettization. Entries are roughly sorted by distance -// of their signed equivalents from the origin. -static const uint32_t kDeltaPalette[DELTA_PALETTE_SIZE] = { - MK_COL(0u, 0u, 0u), - MK_COL(255u, 255u, 255u), - MK_COL(1u, 1u, 1u), - MK_COL(254u, 254u, 254u), - MK_COL(2u, 2u, 2u), - MK_COL(4u, 4u, 4u), - MK_COL(252u, 252u, 252u), - MK_COL(250u, 0u, 0u), - MK_COL(0u, 250u, 0u), - MK_COL(0u, 0u, 250u), - MK_COL(6u, 0u, 0u), - MK_COL(0u, 6u, 0u), - MK_COL(0u, 0u, 6u), - MK_COL(0u, 0u, 248u), - MK_COL(0u, 0u, 8u), - MK_COL(0u, 248u, 0u), - MK_COL(0u, 248u, 248u), - MK_COL(0u, 248u, 8u), - MK_COL(0u, 8u, 0u), - MK_COL(0u, 8u, 248u), - MK_COL(0u, 8u, 8u), - MK_COL(8u, 8u, 8u), - MK_COL(248u, 0u, 0u), - MK_COL(248u, 0u, 248u), - MK_COL(248u, 0u, 8u), - MK_COL(248u, 248u, 0u), - MK_COL(248u, 8u, 0u), - MK_COL(8u, 0u, 0u), - MK_COL(8u, 0u, 248u), - MK_COL(8u, 0u, 8u), - MK_COL(8u, 248u, 0u), - MK_COL(8u, 8u, 0u), - MK_COL(23u, 23u, 23u), - MK_COL(13u, 13u, 13u), - MK_COL(232u, 232u, 232u), - MK_COL(244u, 244u, 244u), - MK_COL(245u, 245u, 250u), - MK_COL(50u, 50u, 50u), - MK_COL(204u, 204u, 204u), - MK_COL(236u, 236u, 236u), - MK_COL(16u, 16u, 16u), - MK_COL(240u, 16u, 16u), - MK_COL(16u, 240u, 16u), - MK_COL(240u, 240u, 16u), - MK_COL(16u, 16u, 240u), - MK_COL(240u, 16u, 240u), - MK_COL(16u, 240u, 240u), - MK_COL(240u, 240u, 240u), - MK_COL(0u, 0u, 232u), - MK_COL(0u, 232u, 0u), - MK_COL(232u, 0u, 0u), - MK_COL(0u, 0u, 24u), - MK_COL(0u, 24u, 0u), - MK_COL(24u, 0u, 0u), - MK_COL(32u, 32u, 32u), - MK_COL(224u, 32u, 32u), - MK_COL(32u, 224u, 32u), - MK_COL(224u, 224u, 32u), - MK_COL(32u, 32u, 224u), - MK_COL(224u, 32u, 224u), - MK_COL(32u, 224u, 224u), - MK_COL(224u, 224u, 224u), - MK_COL(0u, 0u, 176u), - MK_COL(0u, 0u, 80u), - MK_COL(0u, 176u, 0u), - MK_COL(0u, 176u, 176u), - MK_COL(0u, 176u, 80u), - MK_COL(0u, 80u, 0u), - MK_COL(0u, 80u, 176u), - MK_COL(0u, 80u, 80u), - MK_COL(176u, 0u, 0u), - MK_COL(176u, 0u, 176u), - MK_COL(176u, 0u, 80u), - MK_COL(176u, 176u, 0u), - MK_COL(176u, 80u, 0u), - MK_COL(80u, 0u, 0u), - MK_COL(80u, 0u, 176u), - MK_COL(80u, 0u, 80u), - MK_COL(80u, 176u, 0u), - MK_COL(80u, 80u, 0u), - MK_COL(0u, 0u, 152u), - MK_COL(0u, 0u, 104u), - MK_COL(0u, 152u, 0u), - MK_COL(0u, 152u, 152u), - MK_COL(0u, 152u, 104u), - MK_COL(0u, 104u, 0u), - MK_COL(0u, 104u, 152u), - MK_COL(0u, 104u, 104u), - MK_COL(152u, 0u, 0u), - MK_COL(152u, 0u, 152u), - MK_COL(152u, 0u, 104u), - MK_COL(152u, 152u, 0u), - MK_COL(152u, 104u, 0u), - MK_COL(104u, 0u, 0u), - MK_COL(104u, 0u, 152u), - MK_COL(104u, 0u, 104u), - MK_COL(104u, 152u, 0u), - MK_COL(104u, 104u, 0u), - MK_COL(216u, 216u, 216u), - MK_COL(216u, 216u, 40u), - MK_COL(216u, 216u, 176u), - MK_COL(216u, 216u, 80u), - MK_COL(216u, 40u, 216u), - MK_COL(216u, 40u, 40u), - MK_COL(216u, 40u, 176u), - MK_COL(216u, 40u, 80u), - MK_COL(216u, 176u, 216u), - MK_COL(216u, 176u, 40u), - MK_COL(216u, 176u, 176u), - MK_COL(216u, 176u, 80u), - MK_COL(216u, 80u, 216u), - MK_COL(216u, 80u, 40u), - MK_COL(216u, 80u, 176u), - MK_COL(216u, 80u, 80u), - MK_COL(40u, 216u, 216u), - MK_COL(40u, 216u, 40u), - MK_COL(40u, 216u, 176u), - MK_COL(40u, 216u, 80u), - MK_COL(40u, 40u, 216u), - MK_COL(40u, 40u, 40u), - MK_COL(40u, 40u, 176u), - MK_COL(40u, 40u, 80u), - MK_COL(40u, 176u, 216u), - MK_COL(40u, 176u, 40u), - MK_COL(40u, 176u, 176u), - MK_COL(40u, 176u, 80u), - MK_COL(40u, 80u, 216u), - MK_COL(40u, 80u, 40u), - MK_COL(40u, 80u, 176u), - MK_COL(40u, 80u, 80u), - MK_COL(80u, 216u, 216u), - MK_COL(80u, 216u, 40u), - MK_COL(80u, 216u, 176u), - MK_COL(80u, 216u, 80u), - MK_COL(80u, 40u, 216u), - MK_COL(80u, 40u, 40u), - MK_COL(80u, 40u, 176u), - MK_COL(80u, 40u, 80u), - MK_COL(80u, 176u, 216u), - MK_COL(80u, 176u, 40u), - MK_COL(80u, 176u, 176u), - MK_COL(80u, 176u, 80u), - MK_COL(80u, 80u, 216u), - MK_COL(80u, 80u, 40u), - MK_COL(80u, 80u, 176u), - MK_COL(80u, 80u, 80u), - MK_COL(0u, 0u, 192u), - MK_COL(0u, 0u, 64u), - MK_COL(0u, 0u, 128u), - MK_COL(0u, 192u, 0u), - MK_COL(0u, 192u, 192u), - MK_COL(0u, 192u, 64u), - MK_COL(0u, 192u, 128u), - MK_COL(0u, 64u, 0u), - MK_COL(0u, 64u, 192u), - MK_COL(0u, 64u, 64u), - MK_COL(0u, 64u, 128u), - MK_COL(0u, 128u, 0u), - MK_COL(0u, 128u, 192u), - MK_COL(0u, 128u, 64u), - MK_COL(0u, 128u, 128u), - MK_COL(176u, 216u, 216u), - MK_COL(176u, 216u, 40u), - MK_COL(176u, 216u, 176u), - MK_COL(176u, 216u, 80u), - MK_COL(176u, 40u, 216u), - MK_COL(176u, 40u, 40u), - MK_COL(176u, 40u, 176u), - MK_COL(176u, 40u, 80u), - MK_COL(176u, 176u, 216u), - MK_COL(176u, 176u, 40u), - MK_COL(176u, 176u, 176u), - MK_COL(176u, 176u, 80u), - MK_COL(176u, 80u, 216u), - MK_COL(176u, 80u, 40u), - MK_COL(176u, 80u, 176u), - MK_COL(176u, 80u, 80u), - MK_COL(192u, 0u, 0u), - MK_COL(192u, 0u, 192u), - MK_COL(192u, 0u, 64u), - MK_COL(192u, 0u, 128u), - MK_COL(192u, 192u, 0u), - MK_COL(192u, 192u, 192u), - MK_COL(192u, 192u, 64u), - MK_COL(192u, 192u, 128u), - MK_COL(192u, 64u, 0u), - MK_COL(192u, 64u, 192u), - MK_COL(192u, 64u, 64u), - MK_COL(192u, 64u, 128u), - MK_COL(192u, 128u, 0u), - MK_COL(192u, 128u, 192u), - MK_COL(192u, 128u, 64u), - MK_COL(192u, 128u, 128u), - MK_COL(64u, 0u, 0u), - MK_COL(64u, 0u, 192u), - MK_COL(64u, 0u, 64u), - MK_COL(64u, 0u, 128u), - MK_COL(64u, 192u, 0u), - MK_COL(64u, 192u, 192u), - MK_COL(64u, 192u, 64u), - MK_COL(64u, 192u, 128u), - MK_COL(64u, 64u, 0u), - MK_COL(64u, 64u, 192u), - MK_COL(64u, 64u, 64u), - MK_COL(64u, 64u, 128u), - MK_COL(64u, 128u, 0u), - MK_COL(64u, 128u, 192u), - MK_COL(64u, 128u, 64u), - MK_COL(64u, 128u, 128u), - MK_COL(128u, 0u, 0u), - MK_COL(128u, 0u, 192u), - MK_COL(128u, 0u, 64u), - MK_COL(128u, 0u, 128u), - MK_COL(128u, 192u, 0u), - MK_COL(128u, 192u, 192u), - MK_COL(128u, 192u, 64u), - MK_COL(128u, 192u, 128u), - MK_COL(128u, 64u, 0u), - MK_COL(128u, 64u, 192u), - MK_COL(128u, 64u, 64u), - MK_COL(128u, 64u, 128u), - MK_COL(128u, 128u, 0u), - MK_COL(128u, 128u, 192u), - MK_COL(128u, 128u, 64u), - MK_COL(128u, 128u, 128u), -}; - -#undef MK_COL - -//------------------------------------------------------------------------------ -// TODO(skal): move the functions to dsp/lossless.c when the correct -// granularity is found. For now, we'll just copy-paste some useful bits -// here instead. - -// In-place sum of each component with mod 256. -static WEBP_INLINE void AddPixelsEq(uint32_t* a, uint32_t b) { - const uint32_t alpha_and_green = (*a & 0xff00ff00u) + (b & 0xff00ff00u); - const uint32_t red_and_blue = (*a & 0x00ff00ffu) + (b & 0x00ff00ffu); - *a = (alpha_and_green & 0xff00ff00u) | (red_and_blue & 0x00ff00ffu); -} - -static WEBP_INLINE uint32_t Clip255(uint32_t a) { - if (a < 256) { - return a; - } - // return 0, when a is a negative integer. - // return 255, when a is positive. - return ~a >> 24; -} - -// Delta palettization functions. -static WEBP_INLINE int Square(int x) { - return x * x; -} - -static WEBP_INLINE uint32_t Intensity(uint32_t a) { - return - 30 * ((a >> 16) & 0xff) + - 59 * ((a >> 8) & 0xff) + - 11 * ((a >> 0) & 0xff); -} - -static uint32_t CalcDist(uint32_t predicted_value, uint32_t actual_value, - uint32_t palette_entry) { - int i; - uint32_t distance = 0; - AddPixelsEq(&predicted_value, palette_entry); - for (i = 0; i < 32; i += 8) { - const int32_t av = (actual_value >> i) & 0xff; - const int32_t pv = (predicted_value >> i) & 0xff; - distance += Square(pv - av); - } - // We sum square of intensity difference with factor 10, but because Intensity - // returns 100 times real intensity we need to multiply differences of colors - // by 1000. - distance *= 1000u; - distance += Square(Intensity(predicted_value) - - Intensity(actual_value)); - return distance; -} - -static uint32_t Predict(int x, int y, uint32_t* image) { - const uint32_t t = (y == 0) ? ARGB_BLACK : image[x]; - const uint32_t l = (x == 0) ? ARGB_BLACK : image[x - 1]; - const uint32_t p = - (((((t >> 24) & 0xff) + ((l >> 24) & 0xff)) / 2) << 24) + - (((((t >> 16) & 0xff) + ((l >> 16) & 0xff)) / 2) << 16) + - (((((t >> 8) & 0xff) + ((l >> 8) & 0xff)) / 2) << 8) + - (((((t >> 0) & 0xff) + ((l >> 0) & 0xff)) / 2) << 0); - if (x == 0 && y == 0) return ARGB_BLACK; - if (x == 0) return t; - if (y == 0) return l; - return p; -} - -static WEBP_INLINE int AddSubtractComponentFullWithCoefficient( - int a, int b, int c) { - return Clip255(a + ((b - c) >> 2)); -} - -static WEBP_INLINE uint32_t ClampedAddSubtractFullWithCoefficient( - uint32_t c0, uint32_t c1, uint32_t c2) { - const int a = AddSubtractComponentFullWithCoefficient( - c0 >> 24, c1 >> 24, c2 >> 24); - const int r = AddSubtractComponentFullWithCoefficient((c0 >> 16) & 0xff, - (c1 >> 16) & 0xff, - (c2 >> 16) & 0xff); - const int g = AddSubtractComponentFullWithCoefficient((c0 >> 8) & 0xff, - (c1 >> 8) & 0xff, - (c2 >> 8) & 0xff); - const int b = AddSubtractComponentFullWithCoefficient( - c0 & 0xff, c1 & 0xff, c2 & 0xff); - return ((uint32_t)a << 24) | (r << 16) | (g << 8) | b; -} - -//------------------------------------------------------------------------------ - -// Find palette entry with minimum error from difference of actual pixel value -// and predicted pixel value. Propagate error of pixel to its top and left pixel -// in src array. Write predicted_value + palette_entry to new_image. Return -// index of best palette entry. -static int FindBestPaletteEntry(uint32_t src, uint32_t predicted_value, - const uint32_t palette[], int palette_size) { - int i; - int idx = 0; - uint32_t best_distance = CalcDist(predicted_value, src, palette[0]); - for (i = 1; i < palette_size; ++i) { - const uint32_t distance = CalcDist(predicted_value, src, palette[i]); - if (distance < best_distance) { - best_distance = distance; - idx = i; - } - } - return idx; -} - -static void ApplyBestPaletteEntry(int x, int y, - uint32_t new_value, uint32_t palette_value, - uint32_t* src, int src_stride, - uint32_t* new_image) { - AddPixelsEq(&new_value, palette_value); - if (x > 0) { - src[x - 1] = ClampedAddSubtractFullWithCoefficient(src[x - 1], - new_value, src[x]); - } - if (y > 0) { - src[x - src_stride] = - ClampedAddSubtractFullWithCoefficient(src[x - src_stride], - new_value, src[x]); - } - new_image[x] = new_value; -} - -//------------------------------------------------------------------------------ -// Main entry point - -static WebPEncodingError ApplyDeltaPalette(uint32_t* src, uint32_t* dst, - uint32_t src_stride, - uint32_t dst_stride, - const uint32_t* palette, - int palette_size, - int width, int height, - int num_passes) { - int x, y; - WebPEncodingError err = VP8_ENC_OK; - uint32_t* new_image = (uint32_t*)WebPSafeMalloc(width, sizeof(*new_image)); - uint8_t* const tmp_row = (uint8_t*)WebPSafeMalloc(width, sizeof(*tmp_row)); - if (new_image == NULL || tmp_row == NULL) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - - while (num_passes--) { - uint32_t* cur_src = src; - uint32_t* cur_dst = dst; - for (y = 0; y < height; ++y) { - for (x = 0; x < width; ++x) { - const uint32_t predicted_value = Predict(x, y, new_image); - tmp_row[x] = FindBestPaletteEntry(cur_src[x], predicted_value, - palette, palette_size); - ApplyBestPaletteEntry(x, y, predicted_value, palette[tmp_row[x]], - cur_src, src_stride, new_image); - } - for (x = 0; x < width; ++x) { - cur_dst[x] = palette[tmp_row[x]]; - } - cur_src += src_stride; - cur_dst += dst_stride; - } - } - Error: - WebPSafeFree(new_image); - WebPSafeFree(tmp_row); - return err; -} - -// replaces enc->argb_ by a palettizable approximation of it, -// and generates optimal enc->palette_[] -WebPEncodingError WebPSearchOptimalDeltaPalette(VP8LEncoder* const enc) { - const WebPPicture* const pic = enc->pic_; - uint32_t* src = pic->argb; - uint32_t* dst = enc->argb_; - const int width = pic->width; - const int height = pic->height; - - WebPEncodingError err = VP8_ENC_OK; - memcpy(enc->palette_, kDeltaPalette, sizeof(kDeltaPalette)); - enc->palette_[DELTA_PALETTE_SIZE - 1] = src[0] - 0xff000000u; - enc->palette_size_ = DELTA_PALETTE_SIZE; - err = ApplyDeltaPalette(src, dst, pic->argb_stride, enc->current_width_, - enc->palette_, enc->palette_size_, - width, height, 2); - if (err != VP8_ENC_OK) goto Error; - - Error: - return err; -} - -#else // !WEBP_EXPERIMENTAL_FEATURES - -WebPEncodingError WebPSearchOptimalDeltaPalette(VP8LEncoder* const enc) { - (void)enc; - return VP8_ENC_ERROR_INVALID_CONFIGURATION; -} - -#endif // WEBP_EXPERIMENTAL_FEATURES diff --git a/drivers/webp/enc/delta_palettization.h b/drivers/webp/enc/delta_palettization.h deleted file mode 100644 index 54195d452c..0000000000 --- a/drivers/webp/enc/delta_palettization.h +++ /dev/null @@ -1,25 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Author: Mislav Bradac (mislavm@google.com) -// - -#ifndef WEBP_ENC_DELTA_PALETTIZATION_H_ -#define WEBP_ENC_DELTA_PALETTIZATION_H_ - -#include "webp/encode.h" -#include "../enc/vp8li.h" - -// Replaces enc->argb_[] input by a palettizable approximation of it, -// and generates optimal enc->palette_[]. -// This function can revert enc->use_palette_ / enc->use_predict_ flag -// if delta-palettization is not producing expected saving. -WebPEncodingError WebPSearchOptimalDeltaPalette(VP8LEncoder* const enc); - -#endif // WEBP_ENC_DELTA_PALETTIZATION_H_ diff --git a/drivers/webp/enc/filter.c b/drivers/webp/enc/filter.c deleted file mode 100644 index e8ea8b4ff2..0000000000 --- a/drivers/webp/enc/filter.c +++ /dev/null @@ -1,306 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Selecting filter level -// -// Author: somnath@google.com (Somnath Banerjee) - -#include <assert.h> -#include "./vp8enci.h" -#include "../dsp/dsp.h" - -// This table gives, for a given sharpness, the filtering strength to be -// used (at least) in order to filter a given edge step delta. -// This is constructed by brute force inspection: for all delta, we iterate -// over all possible filtering strength / thresh until needs_filter() returns -// true. -#define MAX_DELTA_SIZE 64 -static const uint8_t kLevelsFromDelta[8][MAX_DELTA_SIZE] = { - { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, - 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, - 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, - 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63 }, - { 0, 1, 2, 3, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 17, 18, - 20, 21, 23, 24, 26, 27, 29, 30, 32, 33, 35, 36, 38, 39, 41, 42, - 44, 45, 47, 48, 50, 51, 53, 54, 56, 57, 59, 60, 62, 63, 63, 63, - 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63 }, - { 0, 1, 2, 3, 5, 6, 7, 8, 9, 11, 12, 13, 14, 16, 17, 19, - 20, 22, 23, 25, 26, 28, 29, 31, 32, 34, 35, 37, 38, 40, 41, 43, - 44, 46, 47, 49, 50, 52, 53, 55, 56, 58, 59, 61, 62, 63, 63, 63, - 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63 }, - { 0, 1, 2, 3, 5, 6, 7, 8, 9, 11, 12, 13, 15, 16, 18, 19, - 21, 22, 24, 25, 27, 28, 30, 31, 33, 34, 36, 37, 39, 40, 42, 43, - 45, 46, 48, 49, 51, 52, 54, 55, 57, 58, 60, 61, 63, 63, 63, 63, - 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63 }, - { 0, 1, 2, 3, 5, 6, 7, 8, 9, 11, 12, 14, 15, 17, 18, 20, - 21, 23, 24, 26, 27, 29, 30, 32, 33, 35, 36, 38, 39, 41, 42, 44, - 45, 47, 48, 50, 51, 53, 54, 56, 57, 59, 60, 62, 63, 63, 63, 63, - 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63 }, - { 0, 1, 2, 4, 5, 7, 8, 9, 11, 12, 13, 15, 16, 17, 19, 20, - 22, 23, 25, 26, 28, 29, 31, 32, 34, 35, 37, 38, 40, 41, 43, 44, - 46, 47, 49, 50, 52, 53, 55, 56, 58, 59, 61, 62, 63, 63, 63, 63, - 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63 }, - { 0, 1, 2, 4, 5, 7, 8, 9, 11, 12, 13, 15, 16, 18, 19, 21, - 22, 24, 25, 27, 28, 30, 31, 33, 34, 36, 37, 39, 40, 42, 43, 45, - 46, 48, 49, 51, 52, 54, 55, 57, 58, 60, 61, 63, 63, 63, 63, 63, - 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63 }, - { 0, 1, 2, 4, 5, 7, 8, 9, 11, 12, 14, 15, 17, 18, 20, 21, - 23, 24, 26, 27, 29, 30, 32, 33, 35, 36, 38, 39, 41, 42, 44, 45, - 47, 48, 50, 51, 53, 54, 56, 57, 59, 60, 62, 63, 63, 63, 63, 63, - 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63 } -}; - -int VP8FilterStrengthFromDelta(int sharpness, int delta) { - const int pos = (delta < MAX_DELTA_SIZE) ? delta : MAX_DELTA_SIZE - 1; - assert(sharpness >= 0 && sharpness <= 7); - return kLevelsFromDelta[sharpness][pos]; -} - -//------------------------------------------------------------------------------ -// Paragraph 15.4: compute the inner-edge filtering strength - -static int GetILevel(int sharpness, int level) { - if (sharpness > 0) { - if (sharpness > 4) { - level >>= 2; - } else { - level >>= 1; - } - if (level > 9 - sharpness) { - level = 9 - sharpness; - } - } - if (level < 1) level = 1; - return level; -} - -static void DoFilter(const VP8EncIterator* const it, int level) { - const VP8Encoder* const enc = it->enc_; - const int ilevel = GetILevel(enc->config_->filter_sharpness, level); - const int limit = 2 * level + ilevel; - - uint8_t* const y_dst = it->yuv_out2_ + Y_OFF_ENC; - uint8_t* const u_dst = it->yuv_out2_ + U_OFF_ENC; - uint8_t* const v_dst = it->yuv_out2_ + V_OFF_ENC; - - // copy current block to yuv_out2_ - memcpy(y_dst, it->yuv_out_, YUV_SIZE_ENC * sizeof(uint8_t)); - - if (enc->filter_hdr_.simple_ == 1) { // simple - VP8SimpleHFilter16i(y_dst, BPS, limit); - VP8SimpleVFilter16i(y_dst, BPS, limit); - } else { // complex - const int hev_thresh = (level >= 40) ? 2 : (level >= 15) ? 1 : 0; - VP8HFilter16i(y_dst, BPS, limit, ilevel, hev_thresh); - VP8HFilter8i(u_dst, v_dst, BPS, limit, ilevel, hev_thresh); - VP8VFilter16i(y_dst, BPS, limit, ilevel, hev_thresh); - VP8VFilter8i(u_dst, v_dst, BPS, limit, ilevel, hev_thresh); - } -} - -//------------------------------------------------------------------------------ -// SSIM metric - -static const double kMinValue = 1.e-10; // minimal threshold - -void VP8SSIMAddStats(const VP8DistoStats* const src, VP8DistoStats* const dst) { - dst->w += src->w; - dst->xm += src->xm; - dst->ym += src->ym; - dst->xxm += src->xxm; - dst->xym += src->xym; - dst->yym += src->yym; -} - -double VP8SSIMGet(const VP8DistoStats* const stats) { - const double xmxm = stats->xm * stats->xm; - const double ymym = stats->ym * stats->ym; - const double xmym = stats->xm * stats->ym; - const double w2 = stats->w * stats->w; - double sxx = stats->xxm * stats->w - xmxm; - double syy = stats->yym * stats->w - ymym; - double sxy = stats->xym * stats->w - xmym; - double C1, C2; - double fnum; - double fden; - // small errors are possible, due to rounding. Clamp to zero. - if (sxx < 0.) sxx = 0.; - if (syy < 0.) syy = 0.; - C1 = 6.5025 * w2; - C2 = 58.5225 * w2; - fnum = (2 * xmym + C1) * (2 * sxy + C2); - fden = (xmxm + ymym + C1) * (sxx + syy + C2); - return (fden != 0.) ? fnum / fden : kMinValue; -} - -double VP8SSIMGetSquaredError(const VP8DistoStats* const s) { - if (s->w > 0.) { - const double iw2 = 1. / (s->w * s->w); - const double sxx = s->xxm * s->w - s->xm * s->xm; - const double syy = s->yym * s->w - s->ym * s->ym; - const double sxy = s->xym * s->w - s->xm * s->ym; - const double SSE = iw2 * (sxx + syy - 2. * sxy); - if (SSE > kMinValue) return SSE; - } - return kMinValue; -} - -#define LIMIT(A, M) ((A) > (M) ? (M) : (A)) -static void VP8SSIMAccumulateRow(const uint8_t* src1, int stride1, - const uint8_t* src2, int stride2, - int y, int W, int H, - VP8DistoStats* const stats) { - int x = 0; - const int w0 = LIMIT(VP8_SSIM_KERNEL, W); - for (x = 0; x < w0; ++x) { - VP8SSIMAccumulateClipped(src1, stride1, src2, stride2, x, y, W, H, stats); - } - for (; x <= W - 8 + VP8_SSIM_KERNEL; ++x) { - VP8SSIMAccumulate( - src1 + (y - VP8_SSIM_KERNEL) * stride1 + (x - VP8_SSIM_KERNEL), stride1, - src2 + (y - VP8_SSIM_KERNEL) * stride2 + (x - VP8_SSIM_KERNEL), stride2, - stats); - } - for (; x < W; ++x) { - VP8SSIMAccumulateClipped(src1, stride1, src2, stride2, x, y, W, H, stats); - } -} - -void VP8SSIMAccumulatePlane(const uint8_t* src1, int stride1, - const uint8_t* src2, int stride2, - int W, int H, VP8DistoStats* const stats) { - int x, y; - const int h0 = LIMIT(VP8_SSIM_KERNEL, H); - const int h1 = LIMIT(VP8_SSIM_KERNEL, H - VP8_SSIM_KERNEL); - for (y = 0; y < h0; ++y) { - for (x = 0; x < W; ++x) { - VP8SSIMAccumulateClipped(src1, stride1, src2, stride2, x, y, W, H, stats); - } - } - for (; y < h1; ++y) { - VP8SSIMAccumulateRow(src1, stride1, src2, stride2, y, W, H, stats); - } - for (; y < H; ++y) { - for (x = 0; x < W; ++x) { - VP8SSIMAccumulateClipped(src1, stride1, src2, stride2, x, y, W, H, stats); - } - } -} -#undef LIMIT - -static double GetMBSSIM(const uint8_t* yuv1, const uint8_t* yuv2) { - int x, y; - VP8DistoStats s = { .0, .0, .0, .0, .0, .0 }; - - // compute SSIM in a 10 x 10 window - for (y = VP8_SSIM_KERNEL; y < 16 - VP8_SSIM_KERNEL; y++) { - for (x = VP8_SSIM_KERNEL; x < 16 - VP8_SSIM_KERNEL; x++) { - VP8SSIMAccumulateClipped(yuv1 + Y_OFF_ENC, BPS, yuv2 + Y_OFF_ENC, BPS, - x, y, 16, 16, &s); - } - } - for (x = 1; x < 7; x++) { - for (y = 1; y < 7; y++) { - VP8SSIMAccumulateClipped(yuv1 + U_OFF_ENC, BPS, yuv2 + U_OFF_ENC, BPS, - x, y, 8, 8, &s); - VP8SSIMAccumulateClipped(yuv1 + V_OFF_ENC, BPS, yuv2 + V_OFF_ENC, BPS, - x, y, 8, 8, &s); - } - } - return VP8SSIMGet(&s); -} - -//------------------------------------------------------------------------------ -// Exposed APIs: Encoder should call the following 3 functions to adjust -// loop filter strength - -void VP8InitFilter(VP8EncIterator* const it) { - if (it->lf_stats_ != NULL) { - int s, i; - for (s = 0; s < NUM_MB_SEGMENTS; s++) { - for (i = 0; i < MAX_LF_LEVELS; i++) { - (*it->lf_stats_)[s][i] = 0; - } - } - VP8SSIMDspInit(); - } -} - -void VP8StoreFilterStats(VP8EncIterator* const it) { - int d; - VP8Encoder* const enc = it->enc_; - const int s = it->mb_->segment_; - const int level0 = enc->dqm_[s].fstrength_; - - // explore +/-quant range of values around level0 - const int delta_min = -enc->dqm_[s].quant_; - const int delta_max = enc->dqm_[s].quant_; - const int step_size = (delta_max - delta_min >= 4) ? 4 : 1; - - if (it->lf_stats_ == NULL) return; - - // NOTE: Currently we are applying filter only across the sublock edges - // There are two reasons for that. - // 1. Applying filter on macro block edges will change the pixels in - // the left and top macro blocks. That will be hard to restore - // 2. Macro Blocks on the bottom and right are not yet compressed. So we - // cannot apply filter on the right and bottom macro block edges. - if (it->mb_->type_ == 1 && it->mb_->skip_) return; - - // Always try filter level zero - (*it->lf_stats_)[s][0] += GetMBSSIM(it->yuv_in_, it->yuv_out_); - - for (d = delta_min; d <= delta_max; d += step_size) { - const int level = level0 + d; - if (level <= 0 || level >= MAX_LF_LEVELS) { - continue; - } - DoFilter(it, level); - (*it->lf_stats_)[s][level] += GetMBSSIM(it->yuv_in_, it->yuv_out2_); - } -} - -void VP8AdjustFilterStrength(VP8EncIterator* const it) { - VP8Encoder* const enc = it->enc_; - if (it->lf_stats_ != NULL) { - int s; - for (s = 0; s < NUM_MB_SEGMENTS; s++) { - int i, best_level = 0; - // Improvement over filter level 0 should be at least 1e-5 (relatively) - double best_v = 1.00001 * (*it->lf_stats_)[s][0]; - for (i = 1; i < MAX_LF_LEVELS; i++) { - const double v = (*it->lf_stats_)[s][i]; - if (v > best_v) { - best_v = v; - best_level = i; - } - } - enc->dqm_[s].fstrength_ = best_level; - } - } else if (enc->config_->filter_strength > 0) { - int max_level = 0; - int s; - for (s = 0; s < NUM_MB_SEGMENTS; s++) { - VP8SegmentInfo* const dqm = &enc->dqm_[s]; - // this '>> 3' accounts for some inverse WHT scaling - const int delta = (dqm->max_edge_ * dqm->y2_.q_[1]) >> 3; - const int level = - VP8FilterStrengthFromDelta(enc->filter_hdr_.sharpness_, delta); - if (level > dqm->fstrength_) { - dqm->fstrength_ = level; - } - if (max_level < dqm->fstrength_) { - max_level = dqm->fstrength_; - } - } - enc->filter_hdr_.level_ = max_level; - } -} - -// ----------------------------------------------------------------------------- diff --git a/drivers/webp/enc/frame.c b/drivers/webp/enc/frame.c deleted file mode 100644 index 65a98ada4d..0000000000 --- a/drivers/webp/enc/frame.c +++ /dev/null @@ -1,850 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// frame coding and analysis -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <string.h> -#include <math.h> - -#include "./cost.h" -#include "./vp8enci.h" -#include "../dsp/dsp.h" -#include "webp/format_constants.h" // RIFF constants - -#define SEGMENT_VISU 0 -#define DEBUG_SEARCH 0 // useful to track search convergence - -//------------------------------------------------------------------------------ -// multi-pass convergence - -#define HEADER_SIZE_ESTIMATE (RIFF_HEADER_SIZE + CHUNK_HEADER_SIZE + \ - VP8_FRAME_HEADER_SIZE) -#define DQ_LIMIT 0.4 // convergence is considered reached if dq < DQ_LIMIT -// we allow 2k of extra head-room in PARTITION0 limit. -#define PARTITION0_SIZE_LIMIT ((VP8_MAX_PARTITION0_SIZE - 2048ULL) << 11) - -typedef struct { // struct for organizing convergence in either size or PSNR - int is_first; - float dq; - float q, last_q; - double value, last_value; // PSNR or size - double target; - int do_size_search; -} PassStats; - -static int InitPassStats(const VP8Encoder* const enc, PassStats* const s) { - const uint64_t target_size = (uint64_t)enc->config_->target_size; - const int do_size_search = (target_size != 0); - const float target_PSNR = enc->config_->target_PSNR; - - s->is_first = 1; - s->dq = 10.f; - s->q = s->last_q = enc->config_->quality; - s->target = do_size_search ? (double)target_size - : (target_PSNR > 0.) ? target_PSNR - : 40.; // default, just in case - s->value = s->last_value = 0.; - s->do_size_search = do_size_search; - return do_size_search; -} - -static float Clamp(float v, float min, float max) { - return (v < min) ? min : (v > max) ? max : v; -} - -static float ComputeNextQ(PassStats* const s) { - float dq; - if (s->is_first) { - dq = (s->value > s->target) ? -s->dq : s->dq; - s->is_first = 0; - } else if (s->value != s->last_value) { - const double slope = (s->target - s->value) / (s->last_value - s->value); - dq = (float)(slope * (s->last_q - s->q)); - } else { - dq = 0.; // we're done?! - } - // Limit variable to avoid large swings. - s->dq = Clamp(dq, -30.f, 30.f); - s->last_q = s->q; - s->last_value = s->value; - s->q = Clamp(s->q + s->dq, 0.f, 100.f); - return s->q; -} - -//------------------------------------------------------------------------------ -// Tables for level coding - -const uint8_t VP8Cat3[] = { 173, 148, 140 }; -const uint8_t VP8Cat4[] = { 176, 155, 140, 135 }; -const uint8_t VP8Cat5[] = { 180, 157, 141, 134, 130 }; -const uint8_t VP8Cat6[] = - { 254, 254, 243, 230, 196, 177, 153, 140, 133, 130, 129 }; - -//------------------------------------------------------------------------------ -// Reset the statistics about: number of skips, token proba, level cost,... - -static void ResetStats(VP8Encoder* const enc) { - VP8EncProba* const proba = &enc->proba_; - VP8CalculateLevelCosts(proba); - proba->nb_skip_ = 0; -} - -//------------------------------------------------------------------------------ -// Skip decision probability - -#define SKIP_PROBA_THRESHOLD 250 // value below which using skip_proba is OK. - -static int CalcSkipProba(uint64_t nb, uint64_t total) { - return (int)(total ? (total - nb) * 255 / total : 255); -} - -// Returns the bit-cost for coding the skip probability. -static int FinalizeSkipProba(VP8Encoder* const enc) { - VP8EncProba* const proba = &enc->proba_; - const int nb_mbs = enc->mb_w_ * enc->mb_h_; - const int nb_events = proba->nb_skip_; - int size; - proba->skip_proba_ = CalcSkipProba(nb_events, nb_mbs); - proba->use_skip_proba_ = (proba->skip_proba_ < SKIP_PROBA_THRESHOLD); - size = 256; // 'use_skip_proba' bit - if (proba->use_skip_proba_) { - size += nb_events * VP8BitCost(1, proba->skip_proba_) - + (nb_mbs - nb_events) * VP8BitCost(0, proba->skip_proba_); - size += 8 * 256; // cost of signaling the skip_proba_ itself. - } - return size; -} - -// Collect statistics and deduce probabilities for next coding pass. -// Return the total bit-cost for coding the probability updates. -static int CalcTokenProba(int nb, int total) { - assert(nb <= total); - return nb ? (255 - nb * 255 / total) : 255; -} - -// Cost of coding 'nb' 1's and 'total-nb' 0's using 'proba' probability. -static int BranchCost(int nb, int total, int proba) { - return nb * VP8BitCost(1, proba) + (total - nb) * VP8BitCost(0, proba); -} - -static void ResetTokenStats(VP8Encoder* const enc) { - VP8EncProba* const proba = &enc->proba_; - memset(proba->stats_, 0, sizeof(proba->stats_)); -} - -static int FinalizeTokenProbas(VP8EncProba* const proba) { - int has_changed = 0; - int size = 0; - int t, b, c, p; - for (t = 0; t < NUM_TYPES; ++t) { - for (b = 0; b < NUM_BANDS; ++b) { - for (c = 0; c < NUM_CTX; ++c) { - for (p = 0; p < NUM_PROBAS; ++p) { - const proba_t stats = proba->stats_[t][b][c][p]; - const int nb = (stats >> 0) & 0xffff; - const int total = (stats >> 16) & 0xffff; - const int update_proba = VP8CoeffsUpdateProba[t][b][c][p]; - const int old_p = VP8CoeffsProba0[t][b][c][p]; - const int new_p = CalcTokenProba(nb, total); - const int old_cost = BranchCost(nb, total, old_p) - + VP8BitCost(0, update_proba); - const int new_cost = BranchCost(nb, total, new_p) - + VP8BitCost(1, update_proba) - + 8 * 256; - const int use_new_p = (old_cost > new_cost); - size += VP8BitCost(use_new_p, update_proba); - if (use_new_p) { // only use proba that seem meaningful enough. - proba->coeffs_[t][b][c][p] = new_p; - has_changed |= (new_p != old_p); - size += 8 * 256; - } else { - proba->coeffs_[t][b][c][p] = old_p; - } - } - } - } - } - proba->dirty_ = has_changed; - return size; -} - -//------------------------------------------------------------------------------ -// Finalize Segment probability based on the coding tree - -static int GetProba(int a, int b) { - const int total = a + b; - return (total == 0) ? 255 // that's the default probability. - : (255 * a + total / 2) / total; // rounded proba -} - -static void SetSegmentProbas(VP8Encoder* const enc) { - int p[NUM_MB_SEGMENTS] = { 0 }; - int n; - - for (n = 0; n < enc->mb_w_ * enc->mb_h_; ++n) { - const VP8MBInfo* const mb = &enc->mb_info_[n]; - p[mb->segment_]++; - } - if (enc->pic_->stats != NULL) { - for (n = 0; n < NUM_MB_SEGMENTS; ++n) { - enc->pic_->stats->segment_size[n] = p[n]; - } - } - if (enc->segment_hdr_.num_segments_ > 1) { - uint8_t* const probas = enc->proba_.segments_; - probas[0] = GetProba(p[0] + p[1], p[2] + p[3]); - probas[1] = GetProba(p[0], p[1]); - probas[2] = GetProba(p[2], p[3]); - - enc->segment_hdr_.update_map_ = - (probas[0] != 255) || (probas[1] != 255) || (probas[2] != 255); - enc->segment_hdr_.size_ = - p[0] * (VP8BitCost(0, probas[0]) + VP8BitCost(0, probas[1])) + - p[1] * (VP8BitCost(0, probas[0]) + VP8BitCost(1, probas[1])) + - p[2] * (VP8BitCost(1, probas[0]) + VP8BitCost(0, probas[2])) + - p[3] * (VP8BitCost(1, probas[0]) + VP8BitCost(1, probas[2])); - } else { - enc->segment_hdr_.update_map_ = 0; - enc->segment_hdr_.size_ = 0; - } -} - -//------------------------------------------------------------------------------ -// Coefficient coding - -static int PutCoeffs(VP8BitWriter* const bw, int ctx, const VP8Residual* res) { - int n = res->first; - // should be prob[VP8EncBands[n]], but it's equivalent for n=0 or 1 - const uint8_t* p = res->prob[n][ctx]; - if (!VP8PutBit(bw, res->last >= 0, p[0])) { - return 0; - } - - while (n < 16) { - const int c = res->coeffs[n++]; - const int sign = c < 0; - int v = sign ? -c : c; - if (!VP8PutBit(bw, v != 0, p[1])) { - p = res->prob[VP8EncBands[n]][0]; - continue; - } - if (!VP8PutBit(bw, v > 1, p[2])) { - p = res->prob[VP8EncBands[n]][1]; - } else { - if (!VP8PutBit(bw, v > 4, p[3])) { - if (VP8PutBit(bw, v != 2, p[4])) - VP8PutBit(bw, v == 4, p[5]); - } else if (!VP8PutBit(bw, v > 10, p[6])) { - if (!VP8PutBit(bw, v > 6, p[7])) { - VP8PutBit(bw, v == 6, 159); - } else { - VP8PutBit(bw, v >= 9, 165); - VP8PutBit(bw, !(v & 1), 145); - } - } else { - int mask; - const uint8_t* tab; - if (v < 3 + (8 << 1)) { // VP8Cat3 (3b) - VP8PutBit(bw, 0, p[8]); - VP8PutBit(bw, 0, p[9]); - v -= 3 + (8 << 0); - mask = 1 << 2; - tab = VP8Cat3; - } else if (v < 3 + (8 << 2)) { // VP8Cat4 (4b) - VP8PutBit(bw, 0, p[8]); - VP8PutBit(bw, 1, p[9]); - v -= 3 + (8 << 1); - mask = 1 << 3; - tab = VP8Cat4; - } else if (v < 3 + (8 << 3)) { // VP8Cat5 (5b) - VP8PutBit(bw, 1, p[8]); - VP8PutBit(bw, 0, p[10]); - v -= 3 + (8 << 2); - mask = 1 << 4; - tab = VP8Cat5; - } else { // VP8Cat6 (11b) - VP8PutBit(bw, 1, p[8]); - VP8PutBit(bw, 1, p[10]); - v -= 3 + (8 << 3); - mask = 1 << 10; - tab = VP8Cat6; - } - while (mask) { - VP8PutBit(bw, !!(v & mask), *tab++); - mask >>= 1; - } - } - p = res->prob[VP8EncBands[n]][2]; - } - VP8PutBitUniform(bw, sign); - if (n == 16 || !VP8PutBit(bw, n <= res->last, p[0])) { - return 1; // EOB - } - } - return 1; -} - -static void CodeResiduals(VP8BitWriter* const bw, VP8EncIterator* const it, - const VP8ModeScore* const rd) { - int x, y, ch; - VP8Residual res; - uint64_t pos1, pos2, pos3; - const int i16 = (it->mb_->type_ == 1); - const int segment = it->mb_->segment_; - VP8Encoder* const enc = it->enc_; - - VP8IteratorNzToBytes(it); - - pos1 = VP8BitWriterPos(bw); - if (i16) { - VP8InitResidual(0, 1, enc, &res); - VP8SetResidualCoeffs(rd->y_dc_levels, &res); - it->top_nz_[8] = it->left_nz_[8] = - PutCoeffs(bw, it->top_nz_[8] + it->left_nz_[8], &res); - VP8InitResidual(1, 0, enc, &res); - } else { - VP8InitResidual(0, 3, enc, &res); - } - - // luma-AC - for (y = 0; y < 4; ++y) { - for (x = 0; x < 4; ++x) { - const int ctx = it->top_nz_[x] + it->left_nz_[y]; - VP8SetResidualCoeffs(rd->y_ac_levels[x + y * 4], &res); - it->top_nz_[x] = it->left_nz_[y] = PutCoeffs(bw, ctx, &res); - } - } - pos2 = VP8BitWriterPos(bw); - - // U/V - VP8InitResidual(0, 2, enc, &res); - for (ch = 0; ch <= 2; ch += 2) { - for (y = 0; y < 2; ++y) { - for (x = 0; x < 2; ++x) { - const int ctx = it->top_nz_[4 + ch + x] + it->left_nz_[4 + ch + y]; - VP8SetResidualCoeffs(rd->uv_levels[ch * 2 + x + y * 2], &res); - it->top_nz_[4 + ch + x] = it->left_nz_[4 + ch + y] = - PutCoeffs(bw, ctx, &res); - } - } - } - pos3 = VP8BitWriterPos(bw); - it->luma_bits_ = pos2 - pos1; - it->uv_bits_ = pos3 - pos2; - it->bit_count_[segment][i16] += it->luma_bits_; - it->bit_count_[segment][2] += it->uv_bits_; - VP8IteratorBytesToNz(it); -} - -// Same as CodeResiduals, but doesn't actually write anything. -// Instead, it just records the event distribution. -static void RecordResiduals(VP8EncIterator* const it, - const VP8ModeScore* const rd) { - int x, y, ch; - VP8Residual res; - VP8Encoder* const enc = it->enc_; - - VP8IteratorNzToBytes(it); - - if (it->mb_->type_ == 1) { // i16x16 - VP8InitResidual(0, 1, enc, &res); - VP8SetResidualCoeffs(rd->y_dc_levels, &res); - it->top_nz_[8] = it->left_nz_[8] = - VP8RecordCoeffs(it->top_nz_[8] + it->left_nz_[8], &res); - VP8InitResidual(1, 0, enc, &res); - } else { - VP8InitResidual(0, 3, enc, &res); - } - - // luma-AC - for (y = 0; y < 4; ++y) { - for (x = 0; x < 4; ++x) { - const int ctx = it->top_nz_[x] + it->left_nz_[y]; - VP8SetResidualCoeffs(rd->y_ac_levels[x + y * 4], &res); - it->top_nz_[x] = it->left_nz_[y] = VP8RecordCoeffs(ctx, &res); - } - } - - // U/V - VP8InitResidual(0, 2, enc, &res); - for (ch = 0; ch <= 2; ch += 2) { - for (y = 0; y < 2; ++y) { - for (x = 0; x < 2; ++x) { - const int ctx = it->top_nz_[4 + ch + x] + it->left_nz_[4 + ch + y]; - VP8SetResidualCoeffs(rd->uv_levels[ch * 2 + x + y * 2], &res); - it->top_nz_[4 + ch + x] = it->left_nz_[4 + ch + y] = - VP8RecordCoeffs(ctx, &res); - } - } - } - - VP8IteratorBytesToNz(it); -} - -//------------------------------------------------------------------------------ -// Token buffer - -#if !defined(DISABLE_TOKEN_BUFFER) - -static int RecordTokens(VP8EncIterator* const it, const VP8ModeScore* const rd, - VP8TBuffer* const tokens) { - int x, y, ch; - VP8Residual res; - VP8Encoder* const enc = it->enc_; - - VP8IteratorNzToBytes(it); - if (it->mb_->type_ == 1) { // i16x16 - const int ctx = it->top_nz_[8] + it->left_nz_[8]; - VP8InitResidual(0, 1, enc, &res); - VP8SetResidualCoeffs(rd->y_dc_levels, &res); - it->top_nz_[8] = it->left_nz_[8] = - VP8RecordCoeffTokens(ctx, 1, - res.first, res.last, res.coeffs, tokens); - VP8RecordCoeffs(ctx, &res); - VP8InitResidual(1, 0, enc, &res); - } else { - VP8InitResidual(0, 3, enc, &res); - } - - // luma-AC - for (y = 0; y < 4; ++y) { - for (x = 0; x < 4; ++x) { - const int ctx = it->top_nz_[x] + it->left_nz_[y]; - VP8SetResidualCoeffs(rd->y_ac_levels[x + y * 4], &res); - it->top_nz_[x] = it->left_nz_[y] = - VP8RecordCoeffTokens(ctx, res.coeff_type, - res.first, res.last, res.coeffs, tokens); - VP8RecordCoeffs(ctx, &res); - } - } - - // U/V - VP8InitResidual(0, 2, enc, &res); - for (ch = 0; ch <= 2; ch += 2) { - for (y = 0; y < 2; ++y) { - for (x = 0; x < 2; ++x) { - const int ctx = it->top_nz_[4 + ch + x] + it->left_nz_[4 + ch + y]; - VP8SetResidualCoeffs(rd->uv_levels[ch * 2 + x + y * 2], &res); - it->top_nz_[4 + ch + x] = it->left_nz_[4 + ch + y] = - VP8RecordCoeffTokens(ctx, 2, - res.first, res.last, res.coeffs, tokens); - VP8RecordCoeffs(ctx, &res); - } - } - } - VP8IteratorBytesToNz(it); - return !tokens->error_; -} - -#endif // !DISABLE_TOKEN_BUFFER - -//------------------------------------------------------------------------------ -// ExtraInfo map / Debug function - -#if SEGMENT_VISU -static void SetBlock(uint8_t* p, int value, int size) { - int y; - for (y = 0; y < size; ++y) { - memset(p, value, size); - p += BPS; - } -} -#endif - -static void ResetSSE(VP8Encoder* const enc) { - enc->sse_[0] = 0; - enc->sse_[1] = 0; - enc->sse_[2] = 0; - // Note: enc->sse_[3] is managed by alpha.c - enc->sse_count_ = 0; -} - -static void StoreSSE(const VP8EncIterator* const it) { - VP8Encoder* const enc = it->enc_; - const uint8_t* const in = it->yuv_in_; - const uint8_t* const out = it->yuv_out_; - // Note: not totally accurate at boundary. And doesn't include in-loop filter. - enc->sse_[0] += VP8SSE16x16(in + Y_OFF_ENC, out + Y_OFF_ENC); - enc->sse_[1] += VP8SSE8x8(in + U_OFF_ENC, out + U_OFF_ENC); - enc->sse_[2] += VP8SSE8x8(in + V_OFF_ENC, out + V_OFF_ENC); - enc->sse_count_ += 16 * 16; -} - -static void StoreSideInfo(const VP8EncIterator* const it) { - VP8Encoder* const enc = it->enc_; - const VP8MBInfo* const mb = it->mb_; - WebPPicture* const pic = enc->pic_; - - if (pic->stats != NULL) { - StoreSSE(it); - enc->block_count_[0] += (mb->type_ == 0); - enc->block_count_[1] += (mb->type_ == 1); - enc->block_count_[2] += (mb->skip_ != 0); - } - - if (pic->extra_info != NULL) { - uint8_t* const info = &pic->extra_info[it->x_ + it->y_ * enc->mb_w_]; - switch (pic->extra_info_type) { - case 1: *info = mb->type_; break; - case 2: *info = mb->segment_; break; - case 3: *info = enc->dqm_[mb->segment_].quant_; break; - case 4: *info = (mb->type_ == 1) ? it->preds_[0] : 0xff; break; - case 5: *info = mb->uv_mode_; break; - case 6: { - const int b = (int)((it->luma_bits_ + it->uv_bits_ + 7) >> 3); - *info = (b > 255) ? 255 : b; break; - } - case 7: *info = mb->alpha_; break; - default: *info = 0; break; - } - } -#if SEGMENT_VISU // visualize segments and prediction modes - SetBlock(it->yuv_out_ + Y_OFF_ENC, mb->segment_ * 64, 16); - SetBlock(it->yuv_out_ + U_OFF_ENC, it->preds_[0] * 64, 8); - SetBlock(it->yuv_out_ + V_OFF_ENC, mb->uv_mode_ * 64, 8); -#endif -} - -static double GetPSNR(uint64_t mse, uint64_t size) { - return (mse > 0 && size > 0) ? 10. * log10(255. * 255. * size / mse) : 99; -} - -//------------------------------------------------------------------------------ -// StatLoop(): only collect statistics (number of skips, token usage, ...). -// This is used for deciding optimal probabilities. It also modifies the -// quantizer value if some target (size, PSNR) was specified. - -static void SetLoopParams(VP8Encoder* const enc, float q) { - // Make sure the quality parameter is inside valid bounds - q = Clamp(q, 0.f, 100.f); - - VP8SetSegmentParams(enc, q); // setup segment quantizations and filters - SetSegmentProbas(enc); // compute segment probabilities - - ResetStats(enc); - ResetSSE(enc); -} - -static uint64_t OneStatPass(VP8Encoder* const enc, VP8RDLevel rd_opt, - int nb_mbs, int percent_delta, - PassStats* const s) { - VP8EncIterator it; - uint64_t size = 0; - uint64_t size_p0 = 0; - uint64_t distortion = 0; - const uint64_t pixel_count = nb_mbs * 384; - - VP8IteratorInit(enc, &it); - SetLoopParams(enc, s->q); - do { - VP8ModeScore info; - VP8IteratorImport(&it, NULL); - if (VP8Decimate(&it, &info, rd_opt)) { - // Just record the number of skips and act like skip_proba is not used. - enc->proba_.nb_skip_++; - } - RecordResiduals(&it, &info); - size += info.R + info.H; - size_p0 += info.H; - distortion += info.D; - if (percent_delta && !VP8IteratorProgress(&it, percent_delta)) - return 0; - VP8IteratorSaveBoundary(&it); - } while (VP8IteratorNext(&it) && --nb_mbs > 0); - - size_p0 += enc->segment_hdr_.size_; - if (s->do_size_search) { - size += FinalizeSkipProba(enc); - size += FinalizeTokenProbas(&enc->proba_); - size = ((size + size_p0 + 1024) >> 11) + HEADER_SIZE_ESTIMATE; - s->value = (double)size; - } else { - s->value = GetPSNR(distortion, pixel_count); - } - return size_p0; -} - -static int StatLoop(VP8Encoder* const enc) { - const int method = enc->method_; - const int do_search = enc->do_search_; - const int fast_probe = ((method == 0 || method == 3) && !do_search); - int num_pass_left = enc->config_->pass; - const int task_percent = 20; - const int percent_per_pass = - (task_percent + num_pass_left / 2) / num_pass_left; - const int final_percent = enc->percent_ + task_percent; - const VP8RDLevel rd_opt = - (method >= 3 || do_search) ? RD_OPT_BASIC : RD_OPT_NONE; - int nb_mbs = enc->mb_w_ * enc->mb_h_; - PassStats stats; - - InitPassStats(enc, &stats); - ResetTokenStats(enc); - - // Fast mode: quick analysis pass over few mbs. Better than nothing. - if (fast_probe) { - if (method == 3) { // we need more stats for method 3 to be reliable. - nb_mbs = (nb_mbs > 200) ? nb_mbs >> 1 : 100; - } else { - nb_mbs = (nb_mbs > 200) ? nb_mbs >> 2 : 50; - } - } - - while (num_pass_left-- > 0) { - const int is_last_pass = (fabs(stats.dq) <= DQ_LIMIT) || - (num_pass_left == 0) || - (enc->max_i4_header_bits_ == 0); - const uint64_t size_p0 = - OneStatPass(enc, rd_opt, nb_mbs, percent_per_pass, &stats); - if (size_p0 == 0) return 0; -#if (DEBUG_SEARCH > 0) - printf("#%d value:%.1lf -> %.1lf q:%.2f -> %.2f\n", - num_pass_left, stats.last_value, stats.value, stats.last_q, stats.q); -#endif - if (enc->max_i4_header_bits_ > 0 && size_p0 > PARTITION0_SIZE_LIMIT) { - ++num_pass_left; - enc->max_i4_header_bits_ >>= 1; // strengthen header bit limitation... - continue; // ...and start over - } - if (is_last_pass) { - break; - } - // If no target size: just do several pass without changing 'q' - if (do_search) { - ComputeNextQ(&stats); - if (fabs(stats.dq) <= DQ_LIMIT) break; - } - } - if (!do_search || !stats.do_size_search) { - // Need to finalize probas now, since it wasn't done during the search. - FinalizeSkipProba(enc); - FinalizeTokenProbas(&enc->proba_); - } - VP8CalculateLevelCosts(&enc->proba_); // finalize costs - return WebPReportProgress(enc->pic_, final_percent, &enc->percent_); -} - -//------------------------------------------------------------------------------ -// Main loops -// - -static const int kAverageBytesPerMB[8] = { 50, 24, 16, 9, 7, 5, 3, 2 }; - -static int PreLoopInitialize(VP8Encoder* const enc) { - int p; - int ok = 1; - const int average_bytes_per_MB = kAverageBytesPerMB[enc->base_quant_ >> 4]; - const int bytes_per_parts = - enc->mb_w_ * enc->mb_h_ * average_bytes_per_MB / enc->num_parts_; - // Initialize the bit-writers - for (p = 0; ok && p < enc->num_parts_; ++p) { - ok = VP8BitWriterInit(enc->parts_ + p, bytes_per_parts); - } - if (!ok) { - VP8EncFreeBitWriters(enc); // malloc error occurred - WebPEncodingSetError(enc->pic_, VP8_ENC_ERROR_OUT_OF_MEMORY); - } - return ok; -} - -static int PostLoopFinalize(VP8EncIterator* const it, int ok) { - VP8Encoder* const enc = it->enc_; - if (ok) { // Finalize the partitions, check for extra errors. - int p; - for (p = 0; p < enc->num_parts_; ++p) { - VP8BitWriterFinish(enc->parts_ + p); - ok &= !enc->parts_[p].error_; - } - } - - if (ok) { // All good. Finish up. - if (enc->pic_->stats != NULL) { // finalize byte counters... - int i, s; - for (i = 0; i <= 2; ++i) { - for (s = 0; s < NUM_MB_SEGMENTS; ++s) { - enc->residual_bytes_[i][s] = (int)((it->bit_count_[s][i] + 7) >> 3); - } - } - } - VP8AdjustFilterStrength(it); // ...and store filter stats. - } else { - // Something bad happened -> need to do some memory cleanup. - VP8EncFreeBitWriters(enc); - } - return ok; -} - -//------------------------------------------------------------------------------ -// VP8EncLoop(): does the final bitstream coding. - -static void ResetAfterSkip(VP8EncIterator* const it) { - if (it->mb_->type_ == 1) { - *it->nz_ = 0; // reset all predictors - it->left_nz_[8] = 0; - } else { - *it->nz_ &= (1 << 24); // preserve the dc_nz bit - } -} - -int VP8EncLoop(VP8Encoder* const enc) { - VP8EncIterator it; - int ok = PreLoopInitialize(enc); - if (!ok) return 0; - - StatLoop(enc); // stats-collection loop - - VP8IteratorInit(enc, &it); - VP8InitFilter(&it); - do { - VP8ModeScore info; - const int dont_use_skip = !enc->proba_.use_skip_proba_; - const VP8RDLevel rd_opt = enc->rd_opt_level_; - - VP8IteratorImport(&it, NULL); - // Warning! order is important: first call VP8Decimate() and - // *then* decide how to code the skip decision if there's one. - if (!VP8Decimate(&it, &info, rd_opt) || dont_use_skip) { - CodeResiduals(it.bw_, &it, &info); - } else { // reset predictors after a skip - ResetAfterSkip(&it); - } - StoreSideInfo(&it); - VP8StoreFilterStats(&it); - VP8IteratorExport(&it); - ok = VP8IteratorProgress(&it, 20); - VP8IteratorSaveBoundary(&it); - } while (ok && VP8IteratorNext(&it)); - - return PostLoopFinalize(&it, ok); -} - -//------------------------------------------------------------------------------ -// Single pass using Token Buffer. - -#if !defined(DISABLE_TOKEN_BUFFER) - -#define MIN_COUNT 96 // minimum number of macroblocks before updating stats - -int VP8EncTokenLoop(VP8Encoder* const enc) { - // Roughly refresh the proba eight times per pass - int max_count = (enc->mb_w_ * enc->mb_h_) >> 3; - int num_pass_left = enc->config_->pass; - const int do_search = enc->do_search_; - VP8EncIterator it; - VP8EncProba* const proba = &enc->proba_; - const VP8RDLevel rd_opt = enc->rd_opt_level_; - const uint64_t pixel_count = enc->mb_w_ * enc->mb_h_ * 384; - PassStats stats; - int ok; - - InitPassStats(enc, &stats); - ok = PreLoopInitialize(enc); - if (!ok) return 0; - - if (max_count < MIN_COUNT) max_count = MIN_COUNT; - - assert(enc->num_parts_ == 1); - assert(enc->use_tokens_); - assert(proba->use_skip_proba_ == 0); - assert(rd_opt >= RD_OPT_BASIC); // otherwise, token-buffer won't be useful - assert(num_pass_left > 0); - - while (ok && num_pass_left-- > 0) { - const int is_last_pass = (fabs(stats.dq) <= DQ_LIMIT) || - (num_pass_left == 0) || - (enc->max_i4_header_bits_ == 0); - uint64_t size_p0 = 0; - uint64_t distortion = 0; - int cnt = max_count; - VP8IteratorInit(enc, &it); - SetLoopParams(enc, stats.q); - if (is_last_pass) { - ResetTokenStats(enc); - VP8InitFilter(&it); // don't collect stats until last pass (too costly) - } - VP8TBufferClear(&enc->tokens_); - do { - VP8ModeScore info; - VP8IteratorImport(&it, NULL); - if (--cnt < 0) { - FinalizeTokenProbas(proba); - VP8CalculateLevelCosts(proba); // refresh cost tables for rd-opt - cnt = max_count; - } - VP8Decimate(&it, &info, rd_opt); - ok = RecordTokens(&it, &info, &enc->tokens_); - if (!ok) { - WebPEncodingSetError(enc->pic_, VP8_ENC_ERROR_OUT_OF_MEMORY); - break; - } - size_p0 += info.H; - distortion += info.D; - if (is_last_pass) { - StoreSideInfo(&it); - VP8StoreFilterStats(&it); - VP8IteratorExport(&it); - ok = VP8IteratorProgress(&it, 20); - } - VP8IteratorSaveBoundary(&it); - } while (ok && VP8IteratorNext(&it)); - if (!ok) break; - - size_p0 += enc->segment_hdr_.size_; - if (stats.do_size_search) { - uint64_t size = FinalizeTokenProbas(&enc->proba_); - size += VP8EstimateTokenSize(&enc->tokens_, - (const uint8_t*)proba->coeffs_); - size = (size + size_p0 + 1024) >> 11; // -> size in bytes - size += HEADER_SIZE_ESTIMATE; - stats.value = (double)size; - } else { // compute and store PSNR - stats.value = GetPSNR(distortion, pixel_count); - } - -#if (DEBUG_SEARCH > 0) - printf("#%2d metric:%.1lf -> %.1lf last_q=%.2lf q=%.2lf dq=%.2lf\n", - num_pass_left, stats.last_value, stats.value, - stats.last_q, stats.q, stats.dq); -#endif - if (size_p0 > PARTITION0_SIZE_LIMIT) { - ++num_pass_left; - enc->max_i4_header_bits_ >>= 1; // strengthen header bit limitation... - continue; // ...and start over - } - if (is_last_pass) { - break; // done - } - if (do_search) { - ComputeNextQ(&stats); // Adjust q - } - } - if (ok) { - if (!stats.do_size_search) { - FinalizeTokenProbas(&enc->proba_); - } - ok = VP8EmitTokens(&enc->tokens_, enc->parts_ + 0, - (const uint8_t*)proba->coeffs_, 1); - } - ok = ok && WebPReportProgress(enc->pic_, enc->percent_ + 20, &enc->percent_); - return PostLoopFinalize(&it, ok); -} - -#else - -int VP8EncTokenLoop(VP8Encoder* const enc) { - (void)enc; - return 0; // we shouldn't be here. -} - -#endif // DISABLE_TOKEN_BUFFER - -//------------------------------------------------------------------------------ - diff --git a/drivers/webp/enc/histogram.c b/drivers/webp/enc/histogram.c deleted file mode 100644 index 61544f4ccd..0000000000 --- a/drivers/webp/enc/histogram.c +++ /dev/null @@ -1,937 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Author: Jyrki Alakuijala (jyrki@google.com) -// -#ifdef HAVE_CONFIG_H -#include "webp/config.h" -#endif - -#include <math.h> - -#include "./backward_references.h" -#include "./histogram.h" -#include "../dsp/lossless.h" -#include "../utils/utils.h" - -#define MAX_COST 1.e38 - -// Number of partitions for the three dominant (literal, red and blue) symbol -// costs. -#define NUM_PARTITIONS 4 -// The size of the bin-hash corresponding to the three dominant costs. -#define BIN_SIZE (NUM_PARTITIONS * NUM_PARTITIONS * NUM_PARTITIONS) -// Maximum number of histograms allowed in greedy combining algorithm. -#define MAX_HISTO_GREEDY 100 - -static void HistogramClear(VP8LHistogram* const p) { - uint32_t* const literal = p->literal_; - const int cache_bits = p->palette_code_bits_; - const int histo_size = VP8LGetHistogramSize(cache_bits); - memset(p, 0, histo_size); - p->palette_code_bits_ = cache_bits; - p->literal_ = literal; -} - -// Swap two histogram pointers. -static void HistogramSwap(VP8LHistogram** const A, VP8LHistogram** const B) { - VP8LHistogram* const tmp = *A; - *A = *B; - *B = tmp; -} - -static void HistogramCopy(const VP8LHistogram* const src, - VP8LHistogram* const dst) { - uint32_t* const dst_literal = dst->literal_; - const int dst_cache_bits = dst->palette_code_bits_; - const int histo_size = VP8LGetHistogramSize(dst_cache_bits); - assert(src->palette_code_bits_ == dst_cache_bits); - memcpy(dst, src, histo_size); - dst->literal_ = dst_literal; -} - -int VP8LGetHistogramSize(int cache_bits) { - const int literal_size = VP8LHistogramNumCodes(cache_bits); - const size_t total_size = sizeof(VP8LHistogram) + sizeof(int) * literal_size; - assert(total_size <= (size_t)0x7fffffff); - return (int)total_size; -} - -void VP8LFreeHistogram(VP8LHistogram* const histo) { - WebPSafeFree(histo); -} - -void VP8LFreeHistogramSet(VP8LHistogramSet* const histo) { - WebPSafeFree(histo); -} - -void VP8LHistogramStoreRefs(const VP8LBackwardRefs* const refs, - VP8LHistogram* const histo) { - VP8LRefsCursor c = VP8LRefsCursorInit(refs); - while (VP8LRefsCursorOk(&c)) { - VP8LHistogramAddSinglePixOrCopy(histo, c.cur_pos); - VP8LRefsCursorNext(&c); - } -} - -void VP8LHistogramCreate(VP8LHistogram* const p, - const VP8LBackwardRefs* const refs, - int palette_code_bits) { - if (palette_code_bits >= 0) { - p->palette_code_bits_ = palette_code_bits; - } - HistogramClear(p); - VP8LHistogramStoreRefs(refs, p); -} - -void VP8LHistogramInit(VP8LHistogram* const p, int palette_code_bits) { - p->palette_code_bits_ = palette_code_bits; - HistogramClear(p); -} - -VP8LHistogram* VP8LAllocateHistogram(int cache_bits) { - VP8LHistogram* histo = NULL; - const int total_size = VP8LGetHistogramSize(cache_bits); - uint8_t* const memory = (uint8_t*)WebPSafeMalloc(total_size, sizeof(*memory)); - if (memory == NULL) return NULL; - histo = (VP8LHistogram*)memory; - // literal_ won't necessary be aligned. - histo->literal_ = (uint32_t*)(memory + sizeof(VP8LHistogram)); - VP8LHistogramInit(histo, cache_bits); - return histo; -} - -VP8LHistogramSet* VP8LAllocateHistogramSet(int size, int cache_bits) { - int i; - VP8LHistogramSet* set; - const int histo_size = VP8LGetHistogramSize(cache_bits); - const size_t total_size = - sizeof(*set) + size * (sizeof(*set->histograms) + - histo_size + WEBP_ALIGN_CST); - uint8_t* memory = (uint8_t*)WebPSafeMalloc(total_size, sizeof(*memory)); - if (memory == NULL) return NULL; - - set = (VP8LHistogramSet*)memory; - memory += sizeof(*set); - set->histograms = (VP8LHistogram**)memory; - memory += size * sizeof(*set->histograms); - set->max_size = size; - set->size = size; - for (i = 0; i < size; ++i) { - memory = (uint8_t*)WEBP_ALIGN(memory); - set->histograms[i] = (VP8LHistogram*)memory; - // literal_ won't necessary be aligned. - set->histograms[i]->literal_ = (uint32_t*)(memory + sizeof(VP8LHistogram)); - VP8LHistogramInit(set->histograms[i], cache_bits); - memory += histo_size; - } - return set; -} - -// ----------------------------------------------------------------------------- - -void VP8LHistogramAddSinglePixOrCopy(VP8LHistogram* const histo, - const PixOrCopy* const v) { - if (PixOrCopyIsLiteral(v)) { - ++histo->alpha_[PixOrCopyLiteral(v, 3)]; - ++histo->red_[PixOrCopyLiteral(v, 2)]; - ++histo->literal_[PixOrCopyLiteral(v, 1)]; - ++histo->blue_[PixOrCopyLiteral(v, 0)]; - } else if (PixOrCopyIsCacheIdx(v)) { - const int literal_ix = - NUM_LITERAL_CODES + NUM_LENGTH_CODES + PixOrCopyCacheIdx(v); - ++histo->literal_[literal_ix]; - } else { - int code, extra_bits; - VP8LPrefixEncodeBits(PixOrCopyLength(v), &code, &extra_bits); - ++histo->literal_[NUM_LITERAL_CODES + code]; - VP8LPrefixEncodeBits(PixOrCopyDistance(v), &code, &extra_bits); - ++histo->distance_[code]; - } -} - -// ----------------------------------------------------------------------------- -// Entropy-related functions. - -static WEBP_INLINE double BitsEntropyRefine(const VP8LBitEntropy* entropy) { - double mix; - if (entropy->nonzeros < 5) { - if (entropy->nonzeros <= 1) { - return 0; - } - // Two symbols, they will be 0 and 1 in a Huffman code. - // Let's mix in a bit of entropy to favor good clustering when - // distributions of these are combined. - if (entropy->nonzeros == 2) { - return 0.99 * entropy->sum + 0.01 * entropy->entropy; - } - // No matter what the entropy says, we cannot be better than min_limit - // with Huffman coding. I am mixing a bit of entropy into the - // min_limit since it produces much better (~0.5 %) compression results - // perhaps because of better entropy clustering. - if (entropy->nonzeros == 3) { - mix = 0.95; - } else { - mix = 0.7; // nonzeros == 4. - } - } else { - mix = 0.627; - } - - { - double min_limit = 2 * entropy->sum - entropy->max_val; - min_limit = mix * min_limit + (1.0 - mix) * entropy->entropy; - return (entropy->entropy < min_limit) ? min_limit : entropy->entropy; - } -} - -double VP8LBitsEntropy(const uint32_t* const array, int n, - uint32_t* const trivial_symbol) { - VP8LBitEntropy entropy; - VP8LBitsEntropyUnrefined(array, n, &entropy); - if (trivial_symbol != NULL) { - *trivial_symbol = - (entropy.nonzeros == 1) ? entropy.nonzero_code : VP8L_NON_TRIVIAL_SYM; - } - - return BitsEntropyRefine(&entropy); -} - -static double InitialHuffmanCost(void) { - // Small bias because Huffman code length is typically not stored in - // full length. - static const int kHuffmanCodeOfHuffmanCodeSize = CODE_LENGTH_CODES * 3; - static const double kSmallBias = 9.1; - return kHuffmanCodeOfHuffmanCodeSize - kSmallBias; -} - -// Finalize the Huffman cost based on streak numbers and length type (<3 or >=3) -static double FinalHuffmanCost(const VP8LStreaks* const stats) { - double retval = InitialHuffmanCost(); - retval += stats->counts[0] * 1.5625 + 0.234375 * stats->streaks[0][1]; - retval += stats->counts[1] * 2.578125 + 0.703125 * stats->streaks[1][1]; - retval += 1.796875 * stats->streaks[0][0]; - retval += 3.28125 * stats->streaks[1][0]; - return retval; -} - -// Get the symbol entropy for the distribution 'population'. -// Set 'trivial_sym', if there's only one symbol present in the distribution. -static double PopulationCost(const uint32_t* const population, int length, - uint32_t* const trivial_sym) { - VP8LBitEntropy bit_entropy; - VP8LStreaks stats; - VP8LGetEntropyUnrefined(population, length, &bit_entropy, &stats); - if (trivial_sym != NULL) { - *trivial_sym = (bit_entropy.nonzeros == 1) ? bit_entropy.nonzero_code - : VP8L_NON_TRIVIAL_SYM; - } - - return BitsEntropyRefine(&bit_entropy) + FinalHuffmanCost(&stats); -} - -static WEBP_INLINE double GetCombinedEntropy(const uint32_t* const X, - const uint32_t* const Y, - int length) { - VP8LBitEntropy bit_entropy; - VP8LStreaks stats; - VP8LGetCombinedEntropyUnrefined(X, Y, length, &bit_entropy, &stats); - - return BitsEntropyRefine(&bit_entropy) + FinalHuffmanCost(&stats); -} - -// Estimates the Entropy + Huffman + other block overhead size cost. -double VP8LHistogramEstimateBits(const VP8LHistogram* const p) { - return - PopulationCost( - p->literal_, VP8LHistogramNumCodes(p->palette_code_bits_), NULL) - + PopulationCost(p->red_, NUM_LITERAL_CODES, NULL) - + PopulationCost(p->blue_, NUM_LITERAL_CODES, NULL) - + PopulationCost(p->alpha_, NUM_LITERAL_CODES, NULL) - + PopulationCost(p->distance_, NUM_DISTANCE_CODES, NULL) - + VP8LExtraCost(p->literal_ + NUM_LITERAL_CODES, NUM_LENGTH_CODES) - + VP8LExtraCost(p->distance_, NUM_DISTANCE_CODES); -} - -// ----------------------------------------------------------------------------- -// Various histogram combine/cost-eval functions - -static int GetCombinedHistogramEntropy(const VP8LHistogram* const a, - const VP8LHistogram* const b, - double cost_threshold, - double* cost) { - const int palette_code_bits = a->palette_code_bits_; - assert(a->palette_code_bits_ == b->palette_code_bits_); - *cost += GetCombinedEntropy(a->literal_, b->literal_, - VP8LHistogramNumCodes(palette_code_bits)); - *cost += VP8LExtraCostCombined(a->literal_ + NUM_LITERAL_CODES, - b->literal_ + NUM_LITERAL_CODES, - NUM_LENGTH_CODES); - if (*cost > cost_threshold) return 0; - - *cost += GetCombinedEntropy(a->red_, b->red_, NUM_LITERAL_CODES); - if (*cost > cost_threshold) return 0; - - *cost += GetCombinedEntropy(a->blue_, b->blue_, NUM_LITERAL_CODES); - if (*cost > cost_threshold) return 0; - - *cost += GetCombinedEntropy(a->alpha_, b->alpha_, NUM_LITERAL_CODES); - if (*cost > cost_threshold) return 0; - - *cost += GetCombinedEntropy(a->distance_, b->distance_, NUM_DISTANCE_CODES); - *cost += - VP8LExtraCostCombined(a->distance_, b->distance_, NUM_DISTANCE_CODES); - if (*cost > cost_threshold) return 0; - - return 1; -} - -// Performs out = a + b, computing the cost C(a+b) - C(a) - C(b) while comparing -// to the threshold value 'cost_threshold'. The score returned is -// Score = C(a+b) - C(a) - C(b), where C(a) + C(b) is known and fixed. -// Since the previous score passed is 'cost_threshold', we only need to compare -// the partial cost against 'cost_threshold + C(a) + C(b)' to possibly bail-out -// early. -static double HistogramAddEval(const VP8LHistogram* const a, - const VP8LHistogram* const b, - VP8LHistogram* const out, - double cost_threshold) { - double cost = 0; - const double sum_cost = a->bit_cost_ + b->bit_cost_; - cost_threshold += sum_cost; - - if (GetCombinedHistogramEntropy(a, b, cost_threshold, &cost)) { - VP8LHistogramAdd(a, b, out); - out->bit_cost_ = cost; - out->palette_code_bits_ = a->palette_code_bits_; - out->trivial_symbol_ = (a->trivial_symbol_ == b->trivial_symbol_) ? - a->trivial_symbol_ : VP8L_NON_TRIVIAL_SYM; - } - - return cost - sum_cost; -} - -// Same as HistogramAddEval(), except that the resulting histogram -// is not stored. Only the cost C(a+b) - C(a) is evaluated. We omit -// the term C(b) which is constant over all the evaluations. -static double HistogramAddThresh(const VP8LHistogram* const a, - const VP8LHistogram* const b, - double cost_threshold) { - double cost = -a->bit_cost_; - GetCombinedHistogramEntropy(a, b, cost_threshold, &cost); - return cost; -} - -// ----------------------------------------------------------------------------- - -// The structure to keep track of cost range for the three dominant entropy -// symbols. -// TODO(skal): Evaluate if float can be used here instead of double for -// representing the entropy costs. -typedef struct { - double literal_max_; - double literal_min_; - double red_max_; - double red_min_; - double blue_max_; - double blue_min_; -} DominantCostRange; - -static void DominantCostRangeInit(DominantCostRange* const c) { - c->literal_max_ = 0.; - c->literal_min_ = MAX_COST; - c->red_max_ = 0.; - c->red_min_ = MAX_COST; - c->blue_max_ = 0.; - c->blue_min_ = MAX_COST; -} - -static void UpdateDominantCostRange( - const VP8LHistogram* const h, DominantCostRange* const c) { - if (c->literal_max_ < h->literal_cost_) c->literal_max_ = h->literal_cost_; - if (c->literal_min_ > h->literal_cost_) c->literal_min_ = h->literal_cost_; - if (c->red_max_ < h->red_cost_) c->red_max_ = h->red_cost_; - if (c->red_min_ > h->red_cost_) c->red_min_ = h->red_cost_; - if (c->blue_max_ < h->blue_cost_) c->blue_max_ = h->blue_cost_; - if (c->blue_min_ > h->blue_cost_) c->blue_min_ = h->blue_cost_; -} - -static void UpdateHistogramCost(VP8LHistogram* const h) { - uint32_t alpha_sym, red_sym, blue_sym; - const double alpha_cost = - PopulationCost(h->alpha_, NUM_LITERAL_CODES, &alpha_sym); - const double distance_cost = - PopulationCost(h->distance_, NUM_DISTANCE_CODES, NULL) + - VP8LExtraCost(h->distance_, NUM_DISTANCE_CODES); - const int num_codes = VP8LHistogramNumCodes(h->palette_code_bits_); - h->literal_cost_ = PopulationCost(h->literal_, num_codes, NULL) + - VP8LExtraCost(h->literal_ + NUM_LITERAL_CODES, - NUM_LENGTH_CODES); - h->red_cost_ = PopulationCost(h->red_, NUM_LITERAL_CODES, &red_sym); - h->blue_cost_ = PopulationCost(h->blue_, NUM_LITERAL_CODES, &blue_sym); - h->bit_cost_ = h->literal_cost_ + h->red_cost_ + h->blue_cost_ + - alpha_cost + distance_cost; - if ((alpha_sym | red_sym | blue_sym) == VP8L_NON_TRIVIAL_SYM) { - h->trivial_symbol_ = VP8L_NON_TRIVIAL_SYM; - } else { - h->trivial_symbol_ = - ((uint32_t)alpha_sym << 24) | (red_sym << 16) | (blue_sym << 0); - } -} - -static int GetBinIdForEntropy(double min, double max, double val) { - const double range = max - min; - if (range > 0.) { - const double delta = val - min; - return (int)((NUM_PARTITIONS - 1e-6) * delta / range); - } else { - return 0; - } -} - -static int GetHistoBinIndex(const VP8LHistogram* const h, - const DominantCostRange* const c, int low_effort) { - int bin_id = GetBinIdForEntropy(c->literal_min_, c->literal_max_, - h->literal_cost_); - assert(bin_id < NUM_PARTITIONS); - if (!low_effort) { - bin_id = bin_id * NUM_PARTITIONS - + GetBinIdForEntropy(c->red_min_, c->red_max_, h->red_cost_); - bin_id = bin_id * NUM_PARTITIONS - + GetBinIdForEntropy(c->blue_min_, c->blue_max_, h->blue_cost_); - assert(bin_id < BIN_SIZE); - } - return bin_id; -} - -// Construct the histograms from backward references. -static void HistogramBuild( - int xsize, int histo_bits, const VP8LBackwardRefs* const backward_refs, - VP8LHistogramSet* const image_histo) { - int x = 0, y = 0; - const int histo_xsize = VP8LSubSampleSize(xsize, histo_bits); - VP8LHistogram** const histograms = image_histo->histograms; - VP8LRefsCursor c = VP8LRefsCursorInit(backward_refs); - assert(histo_bits > 0); - while (VP8LRefsCursorOk(&c)) { - const PixOrCopy* const v = c.cur_pos; - const int ix = (y >> histo_bits) * histo_xsize + (x >> histo_bits); - VP8LHistogramAddSinglePixOrCopy(histograms[ix], v); - x += PixOrCopyLength(v); - while (x >= xsize) { - x -= xsize; - ++y; - } - VP8LRefsCursorNext(&c); - } -} - -// Copies the histograms and computes its bit_cost. -static void HistogramCopyAndAnalyze( - VP8LHistogramSet* const orig_histo, VP8LHistogramSet* const image_histo) { - int i; - const int histo_size = orig_histo->size; - VP8LHistogram** const orig_histograms = orig_histo->histograms; - VP8LHistogram** const histograms = image_histo->histograms; - for (i = 0; i < histo_size; ++i) { - VP8LHistogram* const histo = orig_histograms[i]; - UpdateHistogramCost(histo); - // Copy histograms from orig_histo[] to image_histo[]. - HistogramCopy(histo, histograms[i]); - } -} - -// Partition histograms to different entropy bins for three dominant (literal, -// red and blue) symbol costs and compute the histogram aggregate bit_cost. -static void HistogramAnalyzeEntropyBin(VP8LHistogramSet* const image_histo, - int16_t* const bin_map, int low_effort) { - int i; - VP8LHistogram** const histograms = image_histo->histograms; - const int histo_size = image_histo->size; - const int bin_depth = histo_size + 1; - DominantCostRange cost_range; - DominantCostRangeInit(&cost_range); - - // Analyze the dominant (literal, red and blue) entropy costs. - for (i = 0; i < histo_size; ++i) { - VP8LHistogram* const histo = histograms[i]; - UpdateDominantCostRange(histo, &cost_range); - } - - // bin-hash histograms on three of the dominant (literal, red and blue) - // symbol costs. - for (i = 0; i < histo_size; ++i) { - const VP8LHistogram* const histo = histograms[i]; - const int bin_id = GetHistoBinIndex(histo, &cost_range, low_effort); - const int bin_offset = bin_id * bin_depth; - // bin_map[n][0] for every bin 'n' maintains the counter for the number of - // histograms in that bin. - // Get and increment the num_histos in that bin. - const int num_histos = ++bin_map[bin_offset]; - assert(bin_offset + num_histos < bin_depth * BIN_SIZE); - // Add histogram i'th index at num_histos (last) position in the bin_map. - bin_map[bin_offset + num_histos] = i; - } -} - -// Compact the histogram set by removing unused entries. -static void HistogramCompactBins(VP8LHistogramSet* const image_histo) { - VP8LHistogram** const histograms = image_histo->histograms; - int i, j; - - for (i = 0, j = 0; i < image_histo->size; ++i) { - if (histograms[i] != NULL && histograms[i]->bit_cost_ != 0.) { - if (j < i) { - histograms[j] = histograms[i]; - histograms[i] = NULL; - } - ++j; - } - } - image_histo->size = j; -} - -static VP8LHistogram* HistogramCombineEntropyBin( - VP8LHistogramSet* const image_histo, - VP8LHistogram* cur_combo, - int16_t* const bin_map, int bin_depth, int num_bins, - double combine_cost_factor, int low_effort) { - int bin_id; - VP8LHistogram** const histograms = image_histo->histograms; - - for (bin_id = 0; bin_id < num_bins; ++bin_id) { - const int bin_offset = bin_id * bin_depth; - const int num_histos = bin_map[bin_offset]; - const int idx1 = bin_map[bin_offset + 1]; - int num_combine_failures = 0; - int n; - for (n = 2; n <= num_histos; ++n) { - const int idx2 = bin_map[bin_offset + n]; - if (low_effort) { - // Merge all histograms with the same bin index, irrespective of cost of - // the merged histograms. - VP8LHistogramAdd(histograms[idx1], histograms[idx2], histograms[idx1]); - histograms[idx2]->bit_cost_ = 0.; - } else { - const double bit_cost_idx2 = histograms[idx2]->bit_cost_; - if (bit_cost_idx2 > 0.) { - const double bit_cost_thresh = -bit_cost_idx2 * combine_cost_factor; - const double curr_cost_diff = - HistogramAddEval(histograms[idx1], histograms[idx2], - cur_combo, bit_cost_thresh); - if (curr_cost_diff < bit_cost_thresh) { - // Try to merge two histograms only if the combo is a trivial one or - // the two candidate histograms are already non-trivial. - // For some images, 'try_combine' turns out to be false for a lot of - // histogram pairs. In that case, we fallback to combining - // histograms as usual to avoid increasing the header size. - const int try_combine = - (cur_combo->trivial_symbol_ != VP8L_NON_TRIVIAL_SYM) || - ((histograms[idx1]->trivial_symbol_ == VP8L_NON_TRIVIAL_SYM) && - (histograms[idx2]->trivial_symbol_ == VP8L_NON_TRIVIAL_SYM)); - const int max_combine_failures = 32; - if (try_combine || (num_combine_failures >= max_combine_failures)) { - HistogramSwap(&cur_combo, &histograms[idx1]); - histograms[idx2]->bit_cost_ = 0.; - } else { - ++num_combine_failures; - } - } - } - } - } - if (low_effort) { - // Update the bit_cost for the merged histograms (per bin index). - UpdateHistogramCost(histograms[idx1]); - } - } - HistogramCompactBins(image_histo); - return cur_combo; -} - -static uint32_t MyRand(uint32_t *seed) { - *seed *= 16807U; - if (*seed == 0) { - *seed = 1; - } - return *seed; -} - -// ----------------------------------------------------------------------------- -// Histogram pairs priority queue - -// Pair of histograms. Negative idx1 value means that pair is out-of-date. -typedef struct { - int idx1; - int idx2; - double cost_diff; - double cost_combo; -} HistogramPair; - -typedef struct { - HistogramPair* queue; - int size; - int max_size; -} HistoQueue; - -static int HistoQueueInit(HistoQueue* const histo_queue, const int max_index) { - histo_queue->size = 0; - // max_index^2 for the queue size is safe. If you look at - // HistogramCombineGreedy, and imagine that UpdateQueueFront always pushes - // data to the queue, you insert at most: - // - max_index*(max_index-1)/2 (the first two for loops) - // - max_index - 1 in the last for loop at the first iteration of the while - // loop, max_index - 2 at the second iteration ... therefore - // max_index*(max_index-1)/2 overall too - histo_queue->max_size = max_index * max_index; - // We allocate max_size + 1 because the last element at index "size" is - // used as temporary data (and it could be up to max_size). - histo_queue->queue = WebPSafeMalloc(histo_queue->max_size + 1, - sizeof(*histo_queue->queue)); - return histo_queue->queue != NULL; -} - -static void HistoQueueClear(HistoQueue* const histo_queue) { - assert(histo_queue != NULL); - WebPSafeFree(histo_queue->queue); -} - -static void SwapHistogramPairs(HistogramPair *p1, - HistogramPair *p2) { - const HistogramPair tmp = *p1; - *p1 = *p2; - *p2 = tmp; -} - -// Given a valid priority queue in range [0, queue_size) this function checks -// whether histo_queue[queue_size] should be accepted and swaps it with the -// front if it is smaller. Otherwise, it leaves it as is. -static void UpdateQueueFront(HistoQueue* const histo_queue) { - if (histo_queue->queue[histo_queue->size].cost_diff >= 0) return; - - if (histo_queue->queue[histo_queue->size].cost_diff < - histo_queue->queue[0].cost_diff) { - SwapHistogramPairs(histo_queue->queue, - histo_queue->queue + histo_queue->size); - } - ++histo_queue->size; - - // We cannot add more elements than the capacity. - // The allocation adds an extra element to the official capacity so that - // histo_queue->queue[histo_queue->max_size] is read/written within bound. - assert(histo_queue->size <= histo_queue->max_size); -} - -// ----------------------------------------------------------------------------- - -static void PreparePair(VP8LHistogram** histograms, int idx1, int idx2, - HistogramPair* const pair) { - VP8LHistogram* h1; - VP8LHistogram* h2; - double sum_cost; - - if (idx1 > idx2) { - const int tmp = idx2; - idx2 = idx1; - idx1 = tmp; - } - pair->idx1 = idx1; - pair->idx2 = idx2; - h1 = histograms[idx1]; - h2 = histograms[idx2]; - sum_cost = h1->bit_cost_ + h2->bit_cost_; - pair->cost_combo = 0.; - GetCombinedHistogramEntropy(h1, h2, sum_cost, &pair->cost_combo); - pair->cost_diff = pair->cost_combo - sum_cost; -} - -// Combines histograms by continuously choosing the one with the highest cost -// reduction. -static int HistogramCombineGreedy(VP8LHistogramSet* const image_histo) { - int ok = 0; - int image_histo_size = image_histo->size; - int i, j; - VP8LHistogram** const histograms = image_histo->histograms; - // Indexes of remaining histograms. - int* const clusters = WebPSafeMalloc(image_histo_size, sizeof(*clusters)); - // Priority queue of histogram pairs. - HistoQueue histo_queue; - - if (!HistoQueueInit(&histo_queue, image_histo_size) || clusters == NULL) { - goto End; - } - - for (i = 0; i < image_histo_size; ++i) { - // Initialize clusters indexes. - clusters[i] = i; - for (j = i + 1; j < image_histo_size; ++j) { - // Initialize positions array. - PreparePair(histograms, i, j, &histo_queue.queue[histo_queue.size]); - UpdateQueueFront(&histo_queue); - } - } - - while (image_histo_size > 1 && histo_queue.size > 0) { - HistogramPair* copy_to; - const int idx1 = histo_queue.queue[0].idx1; - const int idx2 = histo_queue.queue[0].idx2; - VP8LHistogramAdd(histograms[idx2], histograms[idx1], histograms[idx1]); - histograms[idx1]->bit_cost_ = histo_queue.queue[0].cost_combo; - // Remove merged histogram. - for (i = 0; i + 1 < image_histo_size; ++i) { - if (clusters[i] >= idx2) { - clusters[i] = clusters[i + 1]; - } - } - --image_histo_size; - - // Remove pairs intersecting the just combined best pair. This will - // therefore pop the head of the queue. - copy_to = histo_queue.queue; - for (i = 0; i < histo_queue.size; ++i) { - HistogramPair* const p = histo_queue.queue + i; - if (p->idx1 == idx1 || p->idx2 == idx1 || - p->idx1 == idx2 || p->idx2 == idx2) { - // Do not copy the invalid pair. - continue; - } - if (p->cost_diff < histo_queue.queue[0].cost_diff) { - // Replace the top of the queue if we found better. - SwapHistogramPairs(histo_queue.queue, p); - } - SwapHistogramPairs(copy_to, p); - ++copy_to; - } - histo_queue.size = (int)(copy_to - histo_queue.queue); - - // Push new pairs formed with combined histogram to the queue. - for (i = 0; i < image_histo_size; ++i) { - if (clusters[i] != idx1) { - PreparePair(histograms, idx1, clusters[i], - &histo_queue.queue[histo_queue.size]); - UpdateQueueFront(&histo_queue); - } - } - } - // Move remaining histograms to the beginning of the array. - for (i = 0; i < image_histo_size; ++i) { - if (i != clusters[i]) { // swap the two histograms - HistogramSwap(&histograms[i], &histograms[clusters[i]]); - } - } - - image_histo->size = image_histo_size; - ok = 1; - - End: - WebPSafeFree(clusters); - HistoQueueClear(&histo_queue); - return ok; -} - -static void HistogramCombineStochastic(VP8LHistogramSet* const image_histo, - VP8LHistogram* tmp_histo, - VP8LHistogram* best_combo, - int quality, int min_cluster_size) { - int iter; - uint32_t seed = 0; - int tries_with_no_success = 0; - int image_histo_size = image_histo->size; - const int iter_mult = (quality < 25) ? 2 : 2 + (quality - 25) / 8; - const int outer_iters = image_histo_size * iter_mult; - const int num_pairs = image_histo_size / 2; - const int num_tries_no_success = outer_iters / 2; - VP8LHistogram** const histograms = image_histo->histograms; - - // Collapse similar histograms in 'image_histo'. - ++min_cluster_size; - for (iter = 0; - iter < outer_iters && image_histo_size >= min_cluster_size; - ++iter) { - double best_cost_diff = 0.; - int best_idx1 = -1, best_idx2 = 1; - int j; - const int num_tries = - (num_pairs < image_histo_size) ? num_pairs : image_histo_size; - seed += iter; - for (j = 0; j < num_tries; ++j) { - double curr_cost_diff; - // Choose two histograms at random and try to combine them. - const uint32_t idx1 = MyRand(&seed) % image_histo_size; - const uint32_t tmp = (j & 7) + 1; - const uint32_t diff = - (tmp < 3) ? tmp : MyRand(&seed) % (image_histo_size - 1); - const uint32_t idx2 = (idx1 + diff + 1) % image_histo_size; - if (idx1 == idx2) { - continue; - } - - // Calculate cost reduction on combining. - curr_cost_diff = HistogramAddEval(histograms[idx1], histograms[idx2], - tmp_histo, best_cost_diff); - if (curr_cost_diff < best_cost_diff) { // found a better pair? - HistogramSwap(&best_combo, &tmp_histo); - best_cost_diff = curr_cost_diff; - best_idx1 = idx1; - best_idx2 = idx2; - } - } - - if (best_idx1 >= 0) { - HistogramSwap(&best_combo, &histograms[best_idx1]); - // swap best_idx2 slot with last one (which is now unused) - --image_histo_size; - if (best_idx2 != image_histo_size) { - HistogramSwap(&histograms[image_histo_size], &histograms[best_idx2]); - histograms[image_histo_size] = NULL; - } - tries_with_no_success = 0; - } - if (++tries_with_no_success >= num_tries_no_success) { - break; - } - } - image_histo->size = image_histo_size; -} - -// ----------------------------------------------------------------------------- -// Histogram refinement - -// Find the best 'out' histogram for each of the 'in' histograms. -// Note: we assume that out[]->bit_cost_ is already up-to-date. -static void HistogramRemap(const VP8LHistogramSet* const in, - const VP8LHistogramSet* const out, - uint16_t* const symbols) { - int i; - VP8LHistogram** const in_histo = in->histograms; - VP8LHistogram** const out_histo = out->histograms; - const int in_size = in->size; - const int out_size = out->size; - if (out_size > 1) { - for (i = 0; i < in_size; ++i) { - int best_out = 0; - double best_bits = MAX_COST; - int k; - for (k = 0; k < out_size; ++k) { - const double cur_bits = - HistogramAddThresh(out_histo[k], in_histo[i], best_bits); - if (k == 0 || cur_bits < best_bits) { - best_bits = cur_bits; - best_out = k; - } - } - symbols[i] = best_out; - } - } else { - assert(out_size == 1); - for (i = 0; i < in_size; ++i) { - symbols[i] = 0; - } - } - - // Recompute each out based on raw and symbols. - for (i = 0; i < out_size; ++i) { - HistogramClear(out_histo[i]); - } - - for (i = 0; i < in_size; ++i) { - const int idx = symbols[i]; - VP8LHistogramAdd(in_histo[i], out_histo[idx], out_histo[idx]); - } -} - -static double GetCombineCostFactor(int histo_size, int quality) { - double combine_cost_factor = 0.16; - if (quality < 90) { - if (histo_size > 256) combine_cost_factor /= 2.; - if (histo_size > 512) combine_cost_factor /= 2.; - if (histo_size > 1024) combine_cost_factor /= 2.; - if (quality <= 50) combine_cost_factor /= 2.; - } - return combine_cost_factor; -} - -int VP8LGetHistoImageSymbols(int xsize, int ysize, - const VP8LBackwardRefs* const refs, - int quality, int low_effort, - int histo_bits, int cache_bits, - VP8LHistogramSet* const image_histo, - VP8LHistogramSet* const tmp_histos, - uint16_t* const histogram_symbols) { - int ok = 0; - const int histo_xsize = histo_bits ? VP8LSubSampleSize(xsize, histo_bits) : 1; - const int histo_ysize = histo_bits ? VP8LSubSampleSize(ysize, histo_bits) : 1; - const int image_histo_raw_size = histo_xsize * histo_ysize; - const int entropy_combine_num_bins = low_effort ? NUM_PARTITIONS : BIN_SIZE; - - // The bin_map for every bin follows following semantics: - // bin_map[n][0] = num_histo; // The number of histograms in that bin. - // bin_map[n][1] = index of first histogram in that bin; - // bin_map[n][num_histo] = index of last histogram in that bin; - // bin_map[n][num_histo + 1] ... bin_map[n][bin_depth - 1] = unused indices. - const int bin_depth = image_histo_raw_size + 1; - int16_t* bin_map = NULL; - VP8LHistogramSet* const orig_histo = - VP8LAllocateHistogramSet(image_histo_raw_size, cache_bits); - VP8LHistogram* cur_combo; - const int entropy_combine = - (orig_histo->size > entropy_combine_num_bins * 2) && (quality < 100); - - if (orig_histo == NULL) goto Error; - - // Don't attempt linear bin-partition heuristic for: - // histograms of small sizes, as bin_map will be very sparse and; - // Maximum quality (q==100), to preserve the compression gains at that level. - if (entropy_combine) { - const int bin_map_size = bin_depth * entropy_combine_num_bins; - bin_map = (int16_t*)WebPSafeCalloc(bin_map_size, sizeof(*bin_map)); - if (bin_map == NULL) goto Error; - } - - // Construct the histograms from backward references. - HistogramBuild(xsize, histo_bits, refs, orig_histo); - // Copies the histograms and computes its bit_cost. - HistogramCopyAndAnalyze(orig_histo, image_histo); - - cur_combo = tmp_histos->histograms[1]; // pick up working slot - if (entropy_combine) { - const double combine_cost_factor = - GetCombineCostFactor(image_histo_raw_size, quality); - HistogramAnalyzeEntropyBin(orig_histo, bin_map, low_effort); - // Collapse histograms with similar entropy. - cur_combo = HistogramCombineEntropyBin(image_histo, cur_combo, bin_map, - bin_depth, entropy_combine_num_bins, - combine_cost_factor, low_effort); - } - - // Don't combine the histograms using stochastic and greedy heuristics for - // low-effort compression mode. - if (!low_effort || !entropy_combine) { - const float x = quality / 100.f; - // cubic ramp between 1 and MAX_HISTO_GREEDY: - const int threshold_size = (int)(1 + (x * x * x) * (MAX_HISTO_GREEDY - 1)); - HistogramCombineStochastic(image_histo, tmp_histos->histograms[0], - cur_combo, quality, threshold_size); - if ((image_histo->size <= threshold_size) && - !HistogramCombineGreedy(image_histo)) { - goto Error; - } - } - - // TODO(vikasa): Optimize HistogramRemap for low-effort compression mode also. - // Find the optimal map from original histograms to the final ones. - HistogramRemap(orig_histo, image_histo, histogram_symbols); - - ok = 1; - - Error: - WebPSafeFree(bin_map); - VP8LFreeHistogramSet(orig_histo); - return ok; -} diff --git a/drivers/webp/enc/histogram.h b/drivers/webp/enc/histogram.h deleted file mode 100644 index 59de42b33e..0000000000 --- a/drivers/webp/enc/histogram.h +++ /dev/null @@ -1,123 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Author: Jyrki Alakuijala (jyrki@google.com) -// -// Models the histograms of literal and distance codes. - -#ifndef WEBP_ENC_HISTOGRAM_H_ -#define WEBP_ENC_HISTOGRAM_H_ - -#include <string.h> - -#include "./backward_references.h" -#include "webp/format_constants.h" -#include "webp/types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -// Not a trivial literal symbol. -#define VP8L_NON_TRIVIAL_SYM (0xffffffff) - -// A simple container for histograms of data. -typedef struct { - // literal_ contains green literal, palette-code and - // copy-length-prefix histogram - uint32_t* literal_; // Pointer to the allocated buffer for literal. - uint32_t red_[NUM_LITERAL_CODES]; - uint32_t blue_[NUM_LITERAL_CODES]; - uint32_t alpha_[NUM_LITERAL_CODES]; - // Backward reference prefix-code histogram. - uint32_t distance_[NUM_DISTANCE_CODES]; - int palette_code_bits_; - uint32_t trivial_symbol_; // True, if histograms for Red, Blue & Alpha - // literal symbols are single valued. - double bit_cost_; // cached value of bit cost. - double literal_cost_; // Cached values of dominant entropy costs: - double red_cost_; // literal, red & blue. - double blue_cost_; -} VP8LHistogram; - -// Collection of histograms with fixed capacity, allocated as one -// big memory chunk. Can be destroyed by calling WebPSafeFree(). -typedef struct { - int size; // number of slots currently in use - int max_size; // maximum capacity - VP8LHistogram** histograms; -} VP8LHistogramSet; - -// Create the histogram. -// -// The input data is the PixOrCopy data, which models the literals, stop -// codes and backward references (both distances and lengths). Also: if -// palette_code_bits is >= 0, initialize the histogram with this value. -void VP8LHistogramCreate(VP8LHistogram* const p, - const VP8LBackwardRefs* const refs, - int palette_code_bits); - -// Return the size of the histogram for a given palette_code_bits. -int VP8LGetHistogramSize(int palette_code_bits); - -// Set the palette_code_bits and reset the stats. -void VP8LHistogramInit(VP8LHistogram* const p, int palette_code_bits); - -// Collect all the references into a histogram (without reset) -void VP8LHistogramStoreRefs(const VP8LBackwardRefs* const refs, - VP8LHistogram* const histo); - -// Free the memory allocated for the histogram. -void VP8LFreeHistogram(VP8LHistogram* const histo); - -// Free the memory allocated for the histogram set. -void VP8LFreeHistogramSet(VP8LHistogramSet* const histo); - -// Allocate an array of pointer to histograms, allocated and initialized -// using 'cache_bits'. Return NULL in case of memory error. -VP8LHistogramSet* VP8LAllocateHistogramSet(int size, int cache_bits); - -// Allocate and initialize histogram object with specified 'cache_bits'. -// Returns NULL in case of memory error. -// Special case of VP8LAllocateHistogramSet, with size equals 1. -VP8LHistogram* VP8LAllocateHistogram(int cache_bits); - -// Accumulate a token 'v' into a histogram. -void VP8LHistogramAddSinglePixOrCopy(VP8LHistogram* const histo, - const PixOrCopy* const v); - -static WEBP_INLINE int VP8LHistogramNumCodes(int palette_code_bits) { - return NUM_LITERAL_CODES + NUM_LENGTH_CODES + - ((palette_code_bits > 0) ? (1 << palette_code_bits) : 0); -} - -// Builds the histogram image. -int VP8LGetHistoImageSymbols(int xsize, int ysize, - const VP8LBackwardRefs* const refs, - int quality, int low_effort, - int histogram_bits, int cache_bits, - VP8LHistogramSet* const image_in, - VP8LHistogramSet* const tmp_histos, - uint16_t* const histogram_symbols); - -// Returns the entropy for the symbols in the input array. -// Also sets trivial_symbol to the code value, if the array has only one code -// value. Otherwise, set it to VP8L_NON_TRIVIAL_SYM. -double VP8LBitsEntropy(const uint32_t* const array, int n, - uint32_t* const trivial_symbol); - -// Estimate how many bits the combined entropy of literals and distance -// approximately maps to. -double VP8LHistogramEstimateBits(const VP8LHistogram* const p); - -#ifdef __cplusplus -} -#endif - -#endif // WEBP_ENC_HISTOGRAM_H_ diff --git a/drivers/webp/enc/iterator.c b/drivers/webp/enc/iterator.c deleted file mode 100644 index 99d960a547..0000000000 --- a/drivers/webp/enc/iterator.c +++ /dev/null @@ -1,456 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// VP8Iterator: block iterator -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <string.h> - -#include "./vp8enci.h" - -//------------------------------------------------------------------------------ -// VP8Iterator -//------------------------------------------------------------------------------ - -static void InitLeft(VP8EncIterator* const it) { - it->y_left_[-1] = it->u_left_[-1] = it->v_left_[-1] = - (it->y_ > 0) ? 129 : 127; - memset(it->y_left_, 129, 16); - memset(it->u_left_, 129, 8); - memset(it->v_left_, 129, 8); - it->left_nz_[8] = 0; -} - -static void InitTop(VP8EncIterator* const it) { - const VP8Encoder* const enc = it->enc_; - const size_t top_size = enc->mb_w_ * 16; - memset(enc->y_top_, 127, 2 * top_size); - memset(enc->nz_, 0, enc->mb_w_ * sizeof(*enc->nz_)); -} - -void VP8IteratorSetRow(VP8EncIterator* const it, int y) { - VP8Encoder* const enc = it->enc_; - it->x_ = 0; - it->y_ = y; - it->bw_ = &enc->parts_[y & (enc->num_parts_ - 1)]; - it->preds_ = enc->preds_ + y * 4 * enc->preds_w_; - it->nz_ = enc->nz_; - it->mb_ = enc->mb_info_ + y * enc->mb_w_; - it->y_top_ = enc->y_top_; - it->uv_top_ = enc->uv_top_; - InitLeft(it); -} - -void VP8IteratorReset(VP8EncIterator* const it) { - VP8Encoder* const enc = it->enc_; - VP8IteratorSetRow(it, 0); - VP8IteratorSetCountDown(it, enc->mb_w_ * enc->mb_h_); // default - InitTop(it); - InitLeft(it); - memset(it->bit_count_, 0, sizeof(it->bit_count_)); - it->do_trellis_ = 0; -} - -void VP8IteratorSetCountDown(VP8EncIterator* const it, int count_down) { - it->count_down_ = it->count_down0_ = count_down; -} - -int VP8IteratorIsDone(const VP8EncIterator* const it) { - return (it->count_down_ <= 0); -} - -void VP8IteratorInit(VP8Encoder* const enc, VP8EncIterator* const it) { - it->enc_ = enc; - it->y_stride_ = enc->pic_->y_stride; - it->uv_stride_ = enc->pic_->uv_stride; - it->yuv_in_ = (uint8_t*)WEBP_ALIGN(it->yuv_mem_); - it->yuv_out_ = it->yuv_in_ + YUV_SIZE_ENC; - it->yuv_out2_ = it->yuv_out_ + YUV_SIZE_ENC; - it->yuv_p_ = it->yuv_out2_ + YUV_SIZE_ENC; - it->lf_stats_ = enc->lf_stats_; - it->percent0_ = enc->percent_; - it->y_left_ = (uint8_t*)WEBP_ALIGN(it->yuv_left_mem_ + 1); - it->u_left_ = it->y_left_ + 16 + 16; - it->v_left_ = it->u_left_ + 16; - VP8IteratorReset(it); -} - -int VP8IteratorProgress(const VP8EncIterator* const it, int delta) { - VP8Encoder* const enc = it->enc_; - if (delta && enc->pic_->progress_hook != NULL) { - const int done = it->count_down0_ - it->count_down_; - const int percent = (it->count_down0_ <= 0) - ? it->percent0_ - : it->percent0_ + delta * done / it->count_down0_; - return WebPReportProgress(enc->pic_, percent, &enc->percent_); - } - return 1; -} - -//------------------------------------------------------------------------------ -// Import the source samples into the cache. Takes care of replicating -// boundary pixels if necessary. - -static WEBP_INLINE int MinSize(int a, int b) { return (a < b) ? a : b; } - -static void ImportBlock(const uint8_t* src, int src_stride, - uint8_t* dst, int w, int h, int size) { - int i; - for (i = 0; i < h; ++i) { - memcpy(dst, src, w); - if (w < size) { - memset(dst + w, dst[w - 1], size - w); - } - dst += BPS; - src += src_stride; - } - for (i = h; i < size; ++i) { - memcpy(dst, dst - BPS, size); - dst += BPS; - } -} - -static void ImportLine(const uint8_t* src, int src_stride, - uint8_t* dst, int len, int total_len) { - int i; - for (i = 0; i < len; ++i, src += src_stride) dst[i] = *src; - for (; i < total_len; ++i) dst[i] = dst[len - 1]; -} - -void VP8IteratorImport(VP8EncIterator* const it, uint8_t* tmp_32) { - const VP8Encoder* const enc = it->enc_; - const int x = it->x_, y = it->y_; - const WebPPicture* const pic = enc->pic_; - const uint8_t* const ysrc = pic->y + (y * pic->y_stride + x) * 16; - const uint8_t* const usrc = pic->u + (y * pic->uv_stride + x) * 8; - const uint8_t* const vsrc = pic->v + (y * pic->uv_stride + x) * 8; - const int w = MinSize(pic->width - x * 16, 16); - const int h = MinSize(pic->height - y * 16, 16); - const int uv_w = (w + 1) >> 1; - const int uv_h = (h + 1) >> 1; - - ImportBlock(ysrc, pic->y_stride, it->yuv_in_ + Y_OFF_ENC, w, h, 16); - ImportBlock(usrc, pic->uv_stride, it->yuv_in_ + U_OFF_ENC, uv_w, uv_h, 8); - ImportBlock(vsrc, pic->uv_stride, it->yuv_in_ + V_OFF_ENC, uv_w, uv_h, 8); - - if (tmp_32 == NULL) return; - - // Import source (uncompressed) samples into boundary. - if (x == 0) { - InitLeft(it); - } else { - if (y == 0) { - it->y_left_[-1] = it->u_left_[-1] = it->v_left_[-1] = 127; - } else { - it->y_left_[-1] = ysrc[- 1 - pic->y_stride]; - it->u_left_[-1] = usrc[- 1 - pic->uv_stride]; - it->v_left_[-1] = vsrc[- 1 - pic->uv_stride]; - } - ImportLine(ysrc - 1, pic->y_stride, it->y_left_, h, 16); - ImportLine(usrc - 1, pic->uv_stride, it->u_left_, uv_h, 8); - ImportLine(vsrc - 1, pic->uv_stride, it->v_left_, uv_h, 8); - } - - it->y_top_ = tmp_32 + 0; - it->uv_top_ = tmp_32 + 16; - if (y == 0) { - memset(tmp_32, 127, 32 * sizeof(*tmp_32)); - } else { - ImportLine(ysrc - pic->y_stride, 1, tmp_32, w, 16); - ImportLine(usrc - pic->uv_stride, 1, tmp_32 + 16, uv_w, 8); - ImportLine(vsrc - pic->uv_stride, 1, tmp_32 + 16 + 8, uv_w, 8); - } -} - -//------------------------------------------------------------------------------ -// Copy back the compressed samples into user space if requested. - -static void ExportBlock(const uint8_t* src, uint8_t* dst, int dst_stride, - int w, int h) { - while (h-- > 0) { - memcpy(dst, src, w); - dst += dst_stride; - src += BPS; - } -} - -void VP8IteratorExport(const VP8EncIterator* const it) { - const VP8Encoder* const enc = it->enc_; - if (enc->config_->show_compressed) { - const int x = it->x_, y = it->y_; - const uint8_t* const ysrc = it->yuv_out_ + Y_OFF_ENC; - const uint8_t* const usrc = it->yuv_out_ + U_OFF_ENC; - const uint8_t* const vsrc = it->yuv_out_ + V_OFF_ENC; - const WebPPicture* const pic = enc->pic_; - uint8_t* const ydst = pic->y + (y * pic->y_stride + x) * 16; - uint8_t* const udst = pic->u + (y * pic->uv_stride + x) * 8; - uint8_t* const vdst = pic->v + (y * pic->uv_stride + x) * 8; - int w = (pic->width - x * 16); - int h = (pic->height - y * 16); - - if (w > 16) w = 16; - if (h > 16) h = 16; - - // Luma plane - ExportBlock(ysrc, ydst, pic->y_stride, w, h); - - { // U/V planes - const int uv_w = (w + 1) >> 1; - const int uv_h = (h + 1) >> 1; - ExportBlock(usrc, udst, pic->uv_stride, uv_w, uv_h); - ExportBlock(vsrc, vdst, pic->uv_stride, uv_w, uv_h); - } - } -} - -//------------------------------------------------------------------------------ -// Non-zero contexts setup/teardown - -// Nz bits: -// 0 1 2 3 Y -// 4 5 6 7 -// 8 9 10 11 -// 12 13 14 15 -// 16 17 U -// 18 19 -// 20 21 V -// 22 23 -// 24 DC-intra16 - -// Convert packed context to byte array -#define BIT(nz, n) (!!((nz) & (1 << (n)))) - -void VP8IteratorNzToBytes(VP8EncIterator* const it) { - const int tnz = it->nz_[0], lnz = it->nz_[-1]; - int* const top_nz = it->top_nz_; - int* const left_nz = it->left_nz_; - - // Top-Y - top_nz[0] = BIT(tnz, 12); - top_nz[1] = BIT(tnz, 13); - top_nz[2] = BIT(tnz, 14); - top_nz[3] = BIT(tnz, 15); - // Top-U - top_nz[4] = BIT(tnz, 18); - top_nz[5] = BIT(tnz, 19); - // Top-V - top_nz[6] = BIT(tnz, 22); - top_nz[7] = BIT(tnz, 23); - // DC - top_nz[8] = BIT(tnz, 24); - - // left-Y - left_nz[0] = BIT(lnz, 3); - left_nz[1] = BIT(lnz, 7); - left_nz[2] = BIT(lnz, 11); - left_nz[3] = BIT(lnz, 15); - // left-U - left_nz[4] = BIT(lnz, 17); - left_nz[5] = BIT(lnz, 19); - // left-V - left_nz[6] = BIT(lnz, 21); - left_nz[7] = BIT(lnz, 23); - // left-DC is special, iterated separately -} - -void VP8IteratorBytesToNz(VP8EncIterator* const it) { - uint32_t nz = 0; - const int* const top_nz = it->top_nz_; - const int* const left_nz = it->left_nz_; - // top - nz |= (top_nz[0] << 12) | (top_nz[1] << 13); - nz |= (top_nz[2] << 14) | (top_nz[3] << 15); - nz |= (top_nz[4] << 18) | (top_nz[5] << 19); - nz |= (top_nz[6] << 22) | (top_nz[7] << 23); - nz |= (top_nz[8] << 24); // we propagate the _top_ bit, esp. for intra4 - // left - nz |= (left_nz[0] << 3) | (left_nz[1] << 7); - nz |= (left_nz[2] << 11); - nz |= (left_nz[4] << 17) | (left_nz[6] << 21); - - *it->nz_ = nz; -} - -#undef BIT - -//------------------------------------------------------------------------------ -// Advance to the next position, doing the bookkeeping. - -void VP8IteratorSaveBoundary(VP8EncIterator* const it) { - VP8Encoder* const enc = it->enc_; - const int x = it->x_, y = it->y_; - const uint8_t* const ysrc = it->yuv_out_ + Y_OFF_ENC; - const uint8_t* const uvsrc = it->yuv_out_ + U_OFF_ENC; - if (x < enc->mb_w_ - 1) { // left - int i; - for (i = 0; i < 16; ++i) { - it->y_left_[i] = ysrc[15 + i * BPS]; - } - for (i = 0; i < 8; ++i) { - it->u_left_[i] = uvsrc[7 + i * BPS]; - it->v_left_[i] = uvsrc[15 + i * BPS]; - } - // top-left (before 'top'!) - it->y_left_[-1] = it->y_top_[15]; - it->u_left_[-1] = it->uv_top_[0 + 7]; - it->v_left_[-1] = it->uv_top_[8 + 7]; - } - if (y < enc->mb_h_ - 1) { // top - memcpy(it->y_top_, ysrc + 15 * BPS, 16); - memcpy(it->uv_top_, uvsrc + 7 * BPS, 8 + 8); - } -} - -int VP8IteratorNext(VP8EncIterator* const it) { - it->preds_ += 4; - it->mb_ += 1; - it->nz_ += 1; - it->y_top_ += 16; - it->uv_top_ += 16; - it->x_ += 1; - if (it->x_ == it->enc_->mb_w_) { - VP8IteratorSetRow(it, ++it->y_); - } - return (0 < --it->count_down_); -} - -//------------------------------------------------------------------------------ -// Helper function to set mode properties - -void VP8SetIntra16Mode(const VP8EncIterator* const it, int mode) { - uint8_t* preds = it->preds_; - int y; - for (y = 0; y < 4; ++y) { - memset(preds, mode, 4); - preds += it->enc_->preds_w_; - } - it->mb_->type_ = 1; -} - -void VP8SetIntra4Mode(const VP8EncIterator* const it, const uint8_t* modes) { - uint8_t* preds = it->preds_; - int y; - for (y = 4; y > 0; --y) { - memcpy(preds, modes, 4 * sizeof(*modes)); - preds += it->enc_->preds_w_; - modes += 4; - } - it->mb_->type_ = 0; -} - -void VP8SetIntraUVMode(const VP8EncIterator* const it, int mode) { - it->mb_->uv_mode_ = mode; -} - -void VP8SetSkip(const VP8EncIterator* const it, int skip) { - it->mb_->skip_ = skip; -} - -void VP8SetSegment(const VP8EncIterator* const it, int segment) { - it->mb_->segment_ = segment; -} - -//------------------------------------------------------------------------------ -// Intra4x4 sub-blocks iteration -// -// We store and update the boundary samples into an array of 37 pixels. They -// are updated as we iterate and reconstructs each intra4x4 blocks in turn. -// The position of the samples has the following snake pattern: -// -// 16|17 18 19 20|21 22 23 24|25 26 27 28|29 30 31 32|33 34 35 36 <- Top-right -// --+-----------+-----------+-----------+-----------+ -// 15| 19| 23| 27| 31| -// 14| 18| 22| 26| 30| -// 13| 17| 21| 25| 29| -// 12|13 14 15 16|17 18 19 20|21 22 23 24|25 26 27 28| -// --+-----------+-----------+-----------+-----------+ -// 11| 15| 19| 23| 27| -// 10| 14| 18| 22| 26| -// 9| 13| 17| 21| 25| -// 8| 9 10 11 12|13 14 15 16|17 18 19 20|21 22 23 24| -// --+-----------+-----------+-----------+-----------+ -// 7| 11| 15| 19| 23| -// 6| 10| 14| 18| 22| -// 5| 9| 13| 17| 21| -// 4| 5 6 7 8| 9 10 11 12|13 14 15 16|17 18 19 20| -// --+-----------+-----------+-----------+-----------+ -// 3| 7| 11| 15| 19| -// 2| 6| 10| 14| 18| -// 1| 5| 9| 13| 17| -// 0| 1 2 3 4| 5 6 7 8| 9 10 11 12|13 14 15 16| -// --+-----------+-----------+-----------+-----------+ - -// Array to record the position of the top sample to pass to the prediction -// functions in dsp.c. -static const uint8_t VP8TopLeftI4[16] = { - 17, 21, 25, 29, - 13, 17, 21, 25, - 9, 13, 17, 21, - 5, 9, 13, 17 -}; - -void VP8IteratorStartI4(VP8EncIterator* const it) { - const VP8Encoder* const enc = it->enc_; - int i; - - it->i4_ = 0; // first 4x4 sub-block - it->i4_top_ = it->i4_boundary_ + VP8TopLeftI4[0]; - - // Import the boundary samples - for (i = 0; i < 17; ++i) { // left - it->i4_boundary_[i] = it->y_left_[15 - i]; - } - for (i = 0; i < 16; ++i) { // top - it->i4_boundary_[17 + i] = it->y_top_[i]; - } - // top-right samples have a special case on the far right of the picture - if (it->x_ < enc->mb_w_ - 1) { - for (i = 16; i < 16 + 4; ++i) { - it->i4_boundary_[17 + i] = it->y_top_[i]; - } - } else { // else, replicate the last valid pixel four times - for (i = 16; i < 16 + 4; ++i) { - it->i4_boundary_[17 + i] = it->i4_boundary_[17 + 15]; - } - } - VP8IteratorNzToBytes(it); // import the non-zero context -} - -int VP8IteratorRotateI4(VP8EncIterator* const it, - const uint8_t* const yuv_out) { - const uint8_t* const blk = yuv_out + VP8Scan[it->i4_]; - uint8_t* const top = it->i4_top_; - int i; - - // Update the cache with 7 fresh samples - for (i = 0; i <= 3; ++i) { - top[-4 + i] = blk[i + 3 * BPS]; // store future top samples - } - if ((it->i4_ & 3) != 3) { // if not on the right sub-blocks #3, #7, #11, #15 - for (i = 0; i <= 2; ++i) { // store future left samples - top[i] = blk[3 + (2 - i) * BPS]; - } - } else { // else replicate top-right samples, as says the specs. - for (i = 0; i <= 3; ++i) { - top[i] = top[i + 4]; - } - } - // move pointers to next sub-block - ++it->i4_; - if (it->i4_ == 16) { // we're done - return 0; - } - - it->i4_top_ = it->i4_boundary_ + VP8TopLeftI4[it->i4_]; - return 1; -} - -//------------------------------------------------------------------------------ - diff --git a/drivers/webp/enc/near_lossless.c b/drivers/webp/enc/near_lossless.c deleted file mode 100644 index f4ab91f571..0000000000 --- a/drivers/webp/enc/near_lossless.c +++ /dev/null @@ -1,122 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Near-lossless image preprocessing adjusts pixel values to help -// compressibility with a guarantee of maximum deviation between original and -// resulting pixel values. -// -// Author: Jyrki Alakuijala (jyrki@google.com) -// Converted to C by Aleksander Kramarz (akramarz@google.com) - -#include <assert.h> -#include <stdlib.h> - -#include "../dsp/lossless.h" -#include "../utils/utils.h" -#include "./vp8enci.h" - -#define MIN_DIM_FOR_NEAR_LOSSLESS 64 -#define MAX_LIMIT_BITS 5 - -// Quantizes the value up or down to a multiple of 1<<bits (or to 255), -// choosing the closer one, resolving ties using bankers' rounding. -static int FindClosestDiscretized(int a, int bits) { - const int mask = (1 << bits) - 1; - const int biased = a + (mask >> 1) + ((a >> bits) & 1); - assert(bits > 0); - if (biased > 0xff) return 0xff; - return biased & ~mask; -} - -// Applies FindClosestDiscretized to all channels of pixel. -static uint32_t ClosestDiscretizedArgb(uint32_t a, int bits) { - return - (FindClosestDiscretized(a >> 24, bits) << 24) | - (FindClosestDiscretized((a >> 16) & 0xff, bits) << 16) | - (FindClosestDiscretized((a >> 8) & 0xff, bits) << 8) | - (FindClosestDiscretized(a & 0xff, bits)); -} - -// Checks if distance between corresponding channel values of pixels a and b -// is within the given limit. -static int IsNear(uint32_t a, uint32_t b, int limit) { - int k; - for (k = 0; k < 4; ++k) { - const int delta = - (int)((a >> (k * 8)) & 0xff) - (int)((b >> (k * 8)) & 0xff); - if (delta >= limit || delta <= -limit) { - return 0; - } - } - return 1; -} - -static int IsSmooth(const uint32_t* const prev_row, - const uint32_t* const curr_row, - const uint32_t* const next_row, - int ix, int limit) { - // Check that all pixels in 4-connected neighborhood are smooth. - return (IsNear(curr_row[ix], curr_row[ix - 1], limit) && - IsNear(curr_row[ix], curr_row[ix + 1], limit) && - IsNear(curr_row[ix], prev_row[ix], limit) && - IsNear(curr_row[ix], next_row[ix], limit)); -} - -// Adjusts pixel values of image with given maximum error. -static void NearLossless(int xsize, int ysize, uint32_t* argb, - int limit_bits, uint32_t* copy_buffer) { - int x, y; - const int limit = 1 << limit_bits; - uint32_t* prev_row = copy_buffer; - uint32_t* curr_row = prev_row + xsize; - uint32_t* next_row = curr_row + xsize; - memcpy(copy_buffer, argb, xsize * 2 * sizeof(argb[0])); - - for (y = 1; y < ysize - 1; ++y) { - uint32_t* const curr_argb_row = argb + y * xsize; - uint32_t* const next_argb_row = curr_argb_row + xsize; - memcpy(next_row, next_argb_row, xsize * sizeof(argb[0])); - for (x = 1; x < xsize - 1; ++x) { - if (!IsSmooth(prev_row, curr_row, next_row, x, limit)) { - curr_argb_row[x] = ClosestDiscretizedArgb(curr_row[x], limit_bits); - } - } - { - // Three-way swap. - uint32_t* const temp = prev_row; - prev_row = curr_row; - curr_row = next_row; - next_row = temp; - } - } -} - -int VP8ApplyNearLossless(int xsize, int ysize, uint32_t* argb, int quality) { - int i; - uint32_t* const copy_buffer = - (uint32_t*)WebPSafeMalloc(xsize * 3, sizeof(*copy_buffer)); - const int limit_bits = VP8LNearLosslessBits(quality); - assert(argb != NULL); - assert(limit_bits >= 0); - assert(limit_bits <= MAX_LIMIT_BITS); - if (copy_buffer == NULL) { - return 0; - } - // For small icon images, don't attempt to apply near-lossless compression. - if (xsize < MIN_DIM_FOR_NEAR_LOSSLESS && ysize < MIN_DIM_FOR_NEAR_LOSSLESS) { - WebPSafeFree(copy_buffer); - return 1; - } - - for (i = limit_bits; i != 0; --i) { - NearLossless(xsize, ysize, argb, i, copy_buffer); - } - WebPSafeFree(copy_buffer); - return 1; -} diff --git a/drivers/webp/enc/picture.c b/drivers/webp/enc/picture.c deleted file mode 100644 index d9befbc47d..0000000000 --- a/drivers/webp/enc/picture.c +++ /dev/null @@ -1,292 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// WebPPicture class basis -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> -#include <stdlib.h> - -#include "./vp8enci.h" -#include "../dsp/dsp.h" -#include "../utils/utils.h" - -//------------------------------------------------------------------------------ -// WebPPicture -//------------------------------------------------------------------------------ - -static int DummyWriter(const uint8_t* data, size_t data_size, - const WebPPicture* const picture) { - // The following are to prevent 'unused variable' error message. - (void)data; - (void)data_size; - (void)picture; - return 1; -} - -int WebPPictureInitInternal(WebPPicture* picture, int version) { - if (WEBP_ABI_IS_INCOMPATIBLE(version, WEBP_ENCODER_ABI_VERSION)) { - return 0; // caller/system version mismatch! - } - if (picture != NULL) { - memset(picture, 0, sizeof(*picture)); - picture->writer = DummyWriter; - WebPEncodingSetError(picture, VP8_ENC_OK); - } - return 1; -} - -//------------------------------------------------------------------------------ - -static void WebPPictureResetBufferARGB(WebPPicture* const picture) { - picture->memory_argb_ = NULL; - picture->argb = NULL; - picture->argb_stride = 0; -} - -static void WebPPictureResetBufferYUVA(WebPPicture* const picture) { - picture->memory_ = NULL; - picture->y = picture->u = picture->v = picture->a = NULL; - picture->y_stride = picture->uv_stride = 0; - picture->a_stride = 0; -} - -void WebPPictureResetBuffers(WebPPicture* const picture) { - WebPPictureResetBufferARGB(picture); - WebPPictureResetBufferYUVA(picture); -} - -int WebPPictureAllocARGB(WebPPicture* const picture, int width, int height) { - void* memory; - const uint64_t argb_size = (uint64_t)width * height; - - assert(picture != NULL); - - WebPSafeFree(picture->memory_argb_); - WebPPictureResetBufferARGB(picture); - - if (width <= 0 || height <= 0) { - return WebPEncodingSetError(picture, VP8_ENC_ERROR_BAD_DIMENSION); - } - // allocate a new buffer. - memory = WebPSafeMalloc(argb_size, sizeof(*picture->argb)); - if (memory == NULL) { - return WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); - } - // TODO(skal): align plane to cache line? - picture->memory_argb_ = memory; - picture->argb = (uint32_t*)memory; - picture->argb_stride = width; - return 1; -} - -int WebPPictureAllocYUVA(WebPPicture* const picture, int width, int height) { - const WebPEncCSP uv_csp = picture->colorspace & WEBP_CSP_UV_MASK; - const int has_alpha = picture->colorspace & WEBP_CSP_ALPHA_BIT; - const int y_stride = width; - const int uv_width = (width + 1) >> 1; - const int uv_height = (height + 1) >> 1; - const int uv_stride = uv_width; - int a_width, a_stride; - uint64_t y_size, uv_size, a_size, total_size; - uint8_t* mem; - - assert(picture != NULL); - - WebPSafeFree(picture->memory_); - WebPPictureResetBufferYUVA(picture); - - if (uv_csp != WEBP_YUV420) { - return WebPEncodingSetError(picture, VP8_ENC_ERROR_INVALID_CONFIGURATION); - } - - // alpha - a_width = has_alpha ? width : 0; - a_stride = a_width; - y_size = (uint64_t)y_stride * height; - uv_size = (uint64_t)uv_stride * uv_height; - a_size = (uint64_t)a_stride * height; - - total_size = y_size + a_size + 2 * uv_size; - - // Security and validation checks - if (width <= 0 || height <= 0 || // luma/alpha param error - uv_width < 0 || uv_height < 0) { // u/v param error - return WebPEncodingSetError(picture, VP8_ENC_ERROR_BAD_DIMENSION); - } - // allocate a new buffer. - mem = (uint8_t*)WebPSafeMalloc(total_size, sizeof(*mem)); - if (mem == NULL) { - return WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); - } - - // From now on, we're in the clear, we can no longer fail... - picture->memory_ = (void*)mem; - picture->y_stride = y_stride; - picture->uv_stride = uv_stride; - picture->a_stride = a_stride; - - // TODO(skal): we could align the y/u/v planes and adjust stride. - picture->y = mem; - mem += y_size; - - picture->u = mem; - mem += uv_size; - picture->v = mem; - mem += uv_size; - - if (a_size > 0) { - picture->a = mem; - mem += a_size; - } - (void)mem; // makes the static analyzer happy - return 1; -} - -int WebPPictureAlloc(WebPPicture* picture) { - if (picture != NULL) { - const int width = picture->width; - const int height = picture->height; - - WebPPictureFree(picture); // erase previous buffer - - if (!picture->use_argb) { - return WebPPictureAllocYUVA(picture, width, height); - } else { - return WebPPictureAllocARGB(picture, width, height); - } - } - return 1; -} - -void WebPPictureFree(WebPPicture* picture) { - if (picture != NULL) { - WebPSafeFree(picture->memory_); - WebPSafeFree(picture->memory_argb_); - WebPPictureResetBuffers(picture); - } -} - -//------------------------------------------------------------------------------ -// WebPMemoryWriter: Write-to-memory - -void WebPMemoryWriterInit(WebPMemoryWriter* writer) { - writer->mem = NULL; - writer->size = 0; - writer->max_size = 0; -} - -int WebPMemoryWrite(const uint8_t* data, size_t data_size, - const WebPPicture* picture) { - WebPMemoryWriter* const w = (WebPMemoryWriter*)picture->custom_ptr; - uint64_t next_size; - if (w == NULL) { - return 1; - } - next_size = (uint64_t)w->size + data_size; - if (next_size > w->max_size) { - uint8_t* new_mem; - uint64_t next_max_size = 2ULL * w->max_size; - if (next_max_size < next_size) next_max_size = next_size; - if (next_max_size < 8192ULL) next_max_size = 8192ULL; - new_mem = (uint8_t*)WebPSafeMalloc(next_max_size, 1); - if (new_mem == NULL) { - return 0; - } - if (w->size > 0) { - memcpy(new_mem, w->mem, w->size); - } - WebPSafeFree(w->mem); - w->mem = new_mem; - // down-cast is ok, thanks to WebPSafeMalloc - w->max_size = (size_t)next_max_size; - } - if (data_size > 0) { - memcpy(w->mem + w->size, data, data_size); - w->size += data_size; - } - return 1; -} - -void WebPMemoryWriterClear(WebPMemoryWriter* writer) { - if (writer != NULL) { - WebPSafeFree(writer->mem); - writer->mem = NULL; - writer->size = 0; - writer->max_size = 0; - } -} - -//------------------------------------------------------------------------------ -// Simplest high-level calls: - -typedef int (*Importer)(WebPPicture* const, const uint8_t* const, int); - -static size_t Encode(const uint8_t* rgba, int width, int height, int stride, - Importer import, float quality_factor, int lossless, - uint8_t** output) { - WebPPicture pic; - WebPConfig config; - WebPMemoryWriter wrt; - int ok; - - if (output == NULL) return 0; - - if (!WebPConfigPreset(&config, WEBP_PRESET_DEFAULT, quality_factor) || - !WebPPictureInit(&pic)) { - return 0; // shouldn't happen, except if system installation is broken - } - - config.lossless = !!lossless; - pic.use_argb = !!lossless; - pic.width = width; - pic.height = height; - pic.writer = WebPMemoryWrite; - pic.custom_ptr = &wrt; - WebPMemoryWriterInit(&wrt); - - ok = import(&pic, rgba, stride) && WebPEncode(&config, &pic); - WebPPictureFree(&pic); - if (!ok) { - WebPMemoryWriterClear(&wrt); - *output = NULL; - return 0; - } - *output = wrt.mem; - return wrt.size; -} - -#define ENCODE_FUNC(NAME, IMPORTER) \ -size_t NAME(const uint8_t* in, int w, int h, int bps, float q, \ - uint8_t** out) { \ - return Encode(in, w, h, bps, IMPORTER, q, 0, out); \ -} - -ENCODE_FUNC(WebPEncodeRGB, WebPPictureImportRGB) -ENCODE_FUNC(WebPEncodeBGR, WebPPictureImportBGR) -ENCODE_FUNC(WebPEncodeRGBA, WebPPictureImportRGBA) -ENCODE_FUNC(WebPEncodeBGRA, WebPPictureImportBGRA) - -#undef ENCODE_FUNC - -#define LOSSLESS_DEFAULT_QUALITY 70. -#define LOSSLESS_ENCODE_FUNC(NAME, IMPORTER) \ -size_t NAME(const uint8_t* in, int w, int h, int bps, uint8_t** out) { \ - return Encode(in, w, h, bps, IMPORTER, LOSSLESS_DEFAULT_QUALITY, 1, out); \ -} - -LOSSLESS_ENCODE_FUNC(WebPEncodeLosslessRGB, WebPPictureImportRGB) -LOSSLESS_ENCODE_FUNC(WebPEncodeLosslessBGR, WebPPictureImportBGR) -LOSSLESS_ENCODE_FUNC(WebPEncodeLosslessRGBA, WebPPictureImportRGBA) -LOSSLESS_ENCODE_FUNC(WebPEncodeLosslessBGRA, WebPPictureImportBGRA) - -#undef LOSSLESS_ENCODE_FUNC - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/enc/picture_csp.c b/drivers/webp/enc/picture_csp.c deleted file mode 100644 index 607a6240b0..0000000000 --- a/drivers/webp/enc/picture_csp.c +++ /dev/null @@ -1,1168 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// WebPPicture utils for colorspace conversion -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> -#include <stdlib.h> -#include <math.h> - -#include "./vp8enci.h" -#include "../utils/random.h" -#include "../utils/utils.h" -#include "../dsp/yuv.h" - -// Uncomment to disable gamma-compression during RGB->U/V averaging -#define USE_GAMMA_COMPRESSION - -// If defined, use table to compute x / alpha. -#define USE_INVERSE_ALPHA_TABLE - -static const union { - uint32_t argb; - uint8_t bytes[4]; -} test_endian = { 0xff000000u }; -#define ALPHA_IS_LAST (test_endian.bytes[3] == 0xff) - -//------------------------------------------------------------------------------ -// Detection of non-trivial transparency - -// Returns true if alpha[] has non-0xff values. -static int CheckNonOpaque(const uint8_t* alpha, int width, int height, - int x_step, int y_step) { - if (alpha == NULL) return 0; - while (height-- > 0) { - int x; - for (x = 0; x < width * x_step; x += x_step) { - if (alpha[x] != 0xff) return 1; // TODO(skal): check 4/8 bytes at a time. - } - alpha += y_step; - } - return 0; -} - -// Checking for the presence of non-opaque alpha. -int WebPPictureHasTransparency(const WebPPicture* picture) { - if (picture == NULL) return 0; - if (!picture->use_argb) { - return CheckNonOpaque(picture->a, picture->width, picture->height, - 1, picture->a_stride); - } else { - int x, y; - const uint32_t* argb = picture->argb; - if (argb == NULL) return 0; - for (y = 0; y < picture->height; ++y) { - for (x = 0; x < picture->width; ++x) { - if (argb[x] < 0xff000000u) return 1; // test any alpha values != 0xff - } - argb += picture->argb_stride; - } - } - return 0; -} - -//------------------------------------------------------------------------------ -// Code for gamma correction - -#if defined(USE_GAMMA_COMPRESSION) - -// gamma-compensates loss of resolution during chroma subsampling -#define kGamma 0.80 // for now we use a different gamma value than kGammaF -#define kGammaFix 12 // fixed-point precision for linear values -#define kGammaScale ((1 << kGammaFix) - 1) -#define kGammaTabFix 7 // fixed-point fractional bits precision -#define kGammaTabScale (1 << kGammaTabFix) -#define kGammaTabRounder (kGammaTabScale >> 1) -#define kGammaTabSize (1 << (kGammaFix - kGammaTabFix)) - -static int kLinearToGammaTab[kGammaTabSize + 1]; -static uint16_t kGammaToLinearTab[256]; -static volatile int kGammaTablesOk = 0; - -static WEBP_TSAN_IGNORE_FUNCTION void InitGammaTables(void) { - if (!kGammaTablesOk) { - int v; - const double scale = (double)(1 << kGammaTabFix) / kGammaScale; - const double norm = 1. / 255.; - for (v = 0; v <= 255; ++v) { - kGammaToLinearTab[v] = - (uint16_t)(pow(norm * v, kGamma) * kGammaScale + .5); - } - for (v = 0; v <= kGammaTabSize; ++v) { - kLinearToGammaTab[v] = (int)(255. * pow(scale * v, 1. / kGamma) + .5); - } - kGammaTablesOk = 1; - } -} - -static WEBP_INLINE uint32_t GammaToLinear(uint8_t v) { - return kGammaToLinearTab[v]; -} - -static WEBP_INLINE int Interpolate(int v) { - const int tab_pos = v >> (kGammaTabFix + 2); // integer part - const int x = v & ((kGammaTabScale << 2) - 1); // fractional part - const int v0 = kLinearToGammaTab[tab_pos]; - const int v1 = kLinearToGammaTab[tab_pos + 1]; - const int y = v1 * x + v0 * ((kGammaTabScale << 2) - x); // interpolate - assert(tab_pos + 1 < kGammaTabSize + 1); - return y; -} - -// Convert a linear value 'v' to YUV_FIX+2 fixed-point precision -// U/V value, suitable for RGBToU/V calls. -static WEBP_INLINE int LinearToGamma(uint32_t base_value, int shift) { - const int y = Interpolate(base_value << shift); // final uplifted value - return (y + kGammaTabRounder) >> kGammaTabFix; // descale -} - -#else - -static WEBP_TSAN_IGNORE_FUNCTION void InitGammaTables(void) {} -static WEBP_INLINE uint32_t GammaToLinear(uint8_t v) { return v; } -static WEBP_INLINE int LinearToGamma(uint32_t base_value, int shift) { - return (int)(base_value << shift); -} - -#endif // USE_GAMMA_COMPRESSION - -//------------------------------------------------------------------------------ -// RGB -> YUV conversion - -static int RGBToY(int r, int g, int b, VP8Random* const rg) { - return (rg == NULL) ? VP8RGBToY(r, g, b, YUV_HALF) - : VP8RGBToY(r, g, b, VP8RandomBits(rg, YUV_FIX)); -} - -static int RGBToU(int r, int g, int b, VP8Random* const rg) { - return (rg == NULL) ? VP8RGBToU(r, g, b, YUV_HALF << 2) - : VP8RGBToU(r, g, b, VP8RandomBits(rg, YUV_FIX + 2)); -} - -static int RGBToV(int r, int g, int b, VP8Random* const rg) { - return (rg == NULL) ? VP8RGBToV(r, g, b, YUV_HALF << 2) - : VP8RGBToV(r, g, b, VP8RandomBits(rg, YUV_FIX + 2)); -} - -//------------------------------------------------------------------------------ -// Smart RGB->YUV conversion - -static const int kNumIterations = 6; -static const int kMinDimensionIterativeConversion = 4; - -// We could use SFIX=0 and only uint8_t for fixed_y_t, but it produces some -// banding sometimes. Better use extra precision. -#define SFIX 2 // fixed-point precision of RGB and Y/W -typedef int16_t fixed_t; // signed type with extra SFIX precision for UV -typedef uint16_t fixed_y_t; // unsigned type with extra SFIX precision for W - -#define SHALF (1 << SFIX >> 1) -#define MAX_Y_T ((256 << SFIX) - 1) -#define SROUNDER (1 << (YUV_FIX + SFIX - 1)) - -#if defined(USE_GAMMA_COMPRESSION) - -// float variant of gamma-correction -// We use tables of different size and precision, along with a 'real-world' -// Gamma value close to ~2. -#define kGammaF 2.2 -static float kGammaToLinearTabF[MAX_Y_T + 1]; // size scales with Y_FIX -static float kLinearToGammaTabF[kGammaTabSize + 2]; -static volatile int kGammaTablesFOk = 0; - -static WEBP_TSAN_IGNORE_FUNCTION void InitGammaTablesF(void) { - if (!kGammaTablesFOk) { - int v; - const double norm = 1. / MAX_Y_T; - const double scale = 1. / kGammaTabSize; - for (v = 0; v <= MAX_Y_T; ++v) { - kGammaToLinearTabF[v] = (float)pow(norm * v, kGammaF); - } - for (v = 0; v <= kGammaTabSize; ++v) { - kLinearToGammaTabF[v] = (float)(MAX_Y_T * pow(scale * v, 1. / kGammaF)); - } - // to prevent small rounding errors to cause read-overflow: - kLinearToGammaTabF[kGammaTabSize + 1] = kLinearToGammaTabF[kGammaTabSize]; - kGammaTablesFOk = 1; - } -} - -static WEBP_INLINE float GammaToLinearF(int v) { - return kGammaToLinearTabF[v]; -} - -static WEBP_INLINE int LinearToGammaF(float value) { - const float v = value * kGammaTabSize; - const int tab_pos = (int)v; - const float x = v - (float)tab_pos; // fractional part - const float v0 = kLinearToGammaTabF[tab_pos + 0]; - const float v1 = kLinearToGammaTabF[tab_pos + 1]; - const float y = v1 * x + v0 * (1.f - x); // interpolate - return (int)(y + .5); -} - -#else - -static WEBP_TSAN_IGNORE_FUNCTION void InitGammaTablesF(void) {} -static WEBP_INLINE float GammaToLinearF(int v) { - const float norm = 1.f / MAX_Y_T; - return norm * v; -} -static WEBP_INLINE int LinearToGammaF(float value) { - return (int)(MAX_Y_T * value + .5); -} - -#endif // USE_GAMMA_COMPRESSION - -//------------------------------------------------------------------------------ - -static uint8_t clip_8b(fixed_t v) { - return (!(v & ~0xff)) ? (uint8_t)v : (v < 0) ? 0u : 255u; -} - -static fixed_y_t clip_y(int y) { - return (!(y & ~MAX_Y_T)) ? (fixed_y_t)y : (y < 0) ? 0 : MAX_Y_T; -} - -//------------------------------------------------------------------------------ - -static int RGBToGray(int r, int g, int b) { - const int luma = 19595 * r + 38470 * g + 7471 * b + YUV_HALF; - return (luma >> YUV_FIX); -} - -static float RGBToGrayF(float r, float g, float b) { - return 0.299f * r + 0.587f * g + 0.114f * b; -} - -static int ScaleDown(int a, int b, int c, int d) { - const float A = GammaToLinearF(a); - const float B = GammaToLinearF(b); - const float C = GammaToLinearF(c); - const float D = GammaToLinearF(d); - return LinearToGammaF(0.25f * (A + B + C + D)); -} - -static WEBP_INLINE void UpdateW(const fixed_y_t* src, fixed_y_t* dst, int len) { - while (len-- > 0) { - const float R = GammaToLinearF(src[0]); - const float G = GammaToLinearF(src[1]); - const float B = GammaToLinearF(src[2]); - const float Y = RGBToGrayF(R, G, B); - *dst++ = (fixed_y_t)LinearToGammaF(Y); - src += 3; - } -} - -static int UpdateChroma(const fixed_y_t* src1, - const fixed_y_t* src2, - fixed_t* dst, fixed_y_t* tmp, int len) { - int diff = 0; - while (len--> 0) { - const int r = ScaleDown(src1[0], src1[3], src2[0], src2[3]); - const int g = ScaleDown(src1[1], src1[4], src2[1], src2[4]); - const int b = ScaleDown(src1[2], src1[5], src2[2], src2[5]); - const int W = RGBToGray(r, g, b); - const int r_avg = (src1[0] + src1[3] + src2[0] + src2[3] + 2) >> 2; - const int g_avg = (src1[1] + src1[4] + src2[1] + src2[4] + 2) >> 2; - const int b_avg = (src1[2] + src1[5] + src2[2] + src2[5] + 2) >> 2; - dst[0] = (fixed_t)(r - W); - dst[1] = (fixed_t)(g - W); - dst[2] = (fixed_t)(b - W); - dst += 3; - src1 += 6; - src2 += 6; - if (tmp != NULL) { - tmp[0] = tmp[1] = clip_y(W); - tmp += 2; - } - diff += abs(RGBToGray(r_avg, g_avg, b_avg) - W); - } - return diff; -} - -//------------------------------------------------------------------------------ - -static WEBP_INLINE int Filter(const fixed_t* const A, const fixed_t* const B, - int rightwise) { - int v; - if (!rightwise) { - v = (A[0] * 9 + A[-3] * 3 + B[0] * 3 + B[-3]); - } else { - v = (A[0] * 9 + A[+3] * 3 + B[0] * 3 + B[+3]); - } - return (v + 8) >> 4; -} - -static WEBP_INLINE int Filter2(int A, int B) { return (A * 3 + B + 2) >> 2; } - -//------------------------------------------------------------------------------ - -static WEBP_INLINE fixed_y_t UpLift(uint8_t a) { // 8bit -> SFIX - return ((fixed_y_t)a << SFIX) | SHALF; -} - -static void ImportOneRow(const uint8_t* const r_ptr, - const uint8_t* const g_ptr, - const uint8_t* const b_ptr, - int step, - int pic_width, - fixed_y_t* const dst) { - int i; - for (i = 0; i < pic_width; ++i) { - const int off = i * step; - dst[3 * i + 0] = UpLift(r_ptr[off]); - dst[3 * i + 1] = UpLift(g_ptr[off]); - dst[3 * i + 2] = UpLift(b_ptr[off]); - } - if (pic_width & 1) { // replicate rightmost pixel - memcpy(dst + 3 * pic_width, dst + 3 * (pic_width - 1), 3 * sizeof(*dst)); - } -} - -static void InterpolateTwoRows(const fixed_y_t* const best_y, - const fixed_t* const prev_uv, - const fixed_t* const cur_uv, - const fixed_t* const next_uv, - int w, - fixed_y_t* const out1, - fixed_y_t* const out2) { - int i, k; - { // special boundary case for i==0 - const int W0 = best_y[0]; - const int W1 = best_y[w]; - for (k = 0; k <= 2; ++k) { - out1[k] = clip_y(Filter2(cur_uv[k], prev_uv[k]) + W0); - out2[k] = clip_y(Filter2(cur_uv[k], next_uv[k]) + W1); - } - } - for (i = 1; i < w - 1; ++i) { - const int W0 = best_y[i + 0]; - const int W1 = best_y[i + w]; - const int off = 3 * (i >> 1); - for (k = 0; k <= 2; ++k) { - const int tmp0 = Filter(cur_uv + off + k, prev_uv + off + k, i & 1); - const int tmp1 = Filter(cur_uv + off + k, next_uv + off + k, i & 1); - out1[3 * i + k] = clip_y(tmp0 + W0); - out2[3 * i + k] = clip_y(tmp1 + W1); - } - } - { // special boundary case for i == w - 1 - const int W0 = best_y[i + 0]; - const int W1 = best_y[i + w]; - const int off = 3 * (i >> 1); - for (k = 0; k <= 2; ++k) { - out1[3 * i + k] = clip_y(Filter2(cur_uv[off + k], prev_uv[off + k]) + W0); - out2[3 * i + k] = clip_y(Filter2(cur_uv[off + k], next_uv[off + k]) + W1); - } - } -} - -static WEBP_INLINE uint8_t ConvertRGBToY(int r, int g, int b) { - const int luma = 16839 * r + 33059 * g + 6420 * b + SROUNDER; - return clip_8b(16 + (luma >> (YUV_FIX + SFIX))); -} - -static WEBP_INLINE uint8_t ConvertRGBToU(int r, int g, int b) { - const int u = -9719 * r - 19081 * g + 28800 * b + SROUNDER; - return clip_8b(128 + (u >> (YUV_FIX + SFIX))); -} - -static WEBP_INLINE uint8_t ConvertRGBToV(int r, int g, int b) { - const int v = +28800 * r - 24116 * g - 4684 * b + SROUNDER; - return clip_8b(128 + (v >> (YUV_FIX + SFIX))); -} - -static int ConvertWRGBToYUV(const fixed_y_t* const best_y, - const fixed_t* const best_uv, - WebPPicture* const picture) { - int i, j; - const int w = (picture->width + 1) & ~1; - const int h = (picture->height + 1) & ~1; - const int uv_w = w >> 1; - const int uv_h = h >> 1; - for (j = 0; j < picture->height; ++j) { - for (i = 0; i < picture->width; ++i) { - const int off = 3 * ((i >> 1) + (j >> 1) * uv_w); - const int off2 = i + j * picture->y_stride; - const int W = best_y[i + j * w]; - const int r = best_uv[off + 0] + W; - const int g = best_uv[off + 1] + W; - const int b = best_uv[off + 2] + W; - picture->y[off2] = ConvertRGBToY(r, g, b); - } - } - for (j = 0; j < uv_h; ++j) { - uint8_t* const dst_u = picture->u + j * picture->uv_stride; - uint8_t* const dst_v = picture->v + j * picture->uv_stride; - for (i = 0; i < uv_w; ++i) { - const int off = 3 * (i + j * uv_w); - const int r = best_uv[off + 0]; - const int g = best_uv[off + 1]; - const int b = best_uv[off + 2]; - dst_u[i] = ConvertRGBToU(r, g, b); - dst_v[i] = ConvertRGBToV(r, g, b); - } - } - return 1; -} - -//------------------------------------------------------------------------------ -// Main function - -#define SAFE_ALLOC(W, H, T) ((T*)WebPSafeMalloc((W) * (H), sizeof(T))) - -static int PreprocessARGB(const uint8_t* const r_ptr, - const uint8_t* const g_ptr, - const uint8_t* const b_ptr, - int step, int rgb_stride, - WebPPicture* const picture) { - // we expand the right/bottom border if needed - const int w = (picture->width + 1) & ~1; - const int h = (picture->height + 1) & ~1; - const int uv_w = w >> 1; - const int uv_h = h >> 1; - int i, j, iter; - - // TODO(skal): allocate one big memory chunk. But for now, it's easier - // for valgrind debugging to have several chunks. - fixed_y_t* const tmp_buffer = SAFE_ALLOC(w * 3, 2, fixed_y_t); // scratch - fixed_y_t* const best_y = SAFE_ALLOC(w, h, fixed_y_t); - fixed_y_t* const target_y = SAFE_ALLOC(w, h, fixed_y_t); - fixed_y_t* const best_rgb_y = SAFE_ALLOC(w, 2, fixed_y_t); - fixed_t* const best_uv = SAFE_ALLOC(uv_w * 3, uv_h, fixed_t); - fixed_t* const target_uv = SAFE_ALLOC(uv_w * 3, uv_h, fixed_t); - fixed_t* const best_rgb_uv = SAFE_ALLOC(uv_w * 3, 1, fixed_t); - int ok; - int diff_sum = 0; - const int first_diff_threshold = (int)(2.5 * w * h); - const int min_improvement = 5; // stop if improvement is below this % - const int min_first_improvement = 80; - - if (best_y == NULL || best_uv == NULL || - target_y == NULL || target_uv == NULL || - best_rgb_y == NULL || best_rgb_uv == NULL || - tmp_buffer == NULL) { - ok = WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); - goto End; - } - assert(picture->width >= kMinDimensionIterativeConversion); - assert(picture->height >= kMinDimensionIterativeConversion); - - // Import RGB samples to W/RGB representation. - for (j = 0; j < picture->height; j += 2) { - const int is_last_row = (j == picture->height - 1); - fixed_y_t* const src1 = tmp_buffer; - fixed_y_t* const src2 = tmp_buffer + 3 * w; - const int off1 = j * rgb_stride; - const int off2 = off1 + rgb_stride; - const int uv_off = (j >> 1) * 3 * uv_w; - fixed_y_t* const dst_y = best_y + j * w; - - // prepare two rows of input - ImportOneRow(r_ptr + off1, g_ptr + off1, b_ptr + off1, - step, picture->width, src1); - if (!is_last_row) { - ImportOneRow(r_ptr + off2, g_ptr + off2, b_ptr + off2, - step, picture->width, src2); - } else { - memcpy(src2, src1, 3 * w * sizeof(*src2)); - } - UpdateW(src1, target_y + (j + 0) * w, w); - UpdateW(src2, target_y + (j + 1) * w, w); - diff_sum += UpdateChroma(src1, src2, target_uv + uv_off, dst_y, uv_w); - memcpy(best_uv + uv_off, target_uv + uv_off, 3 * uv_w * sizeof(*best_uv)); - memcpy(dst_y + w, dst_y, w * sizeof(*dst_y)); - } - - // Iterate and resolve clipping conflicts. - for (iter = 0; iter < kNumIterations; ++iter) { - int k; - const fixed_t* cur_uv = best_uv; - const fixed_t* prev_uv = best_uv; - const int old_diff_sum = diff_sum; - diff_sum = 0; - for (j = 0; j < h; j += 2) { - fixed_y_t* const src1 = tmp_buffer; - fixed_y_t* const src2 = tmp_buffer + 3 * w; - { - const fixed_t* const next_uv = cur_uv + ((j < h - 2) ? 3 * uv_w : 0); - InterpolateTwoRows(best_y + j * w, prev_uv, cur_uv, next_uv, - w, src1, src2); - prev_uv = cur_uv; - cur_uv = next_uv; - } - - UpdateW(src1, best_rgb_y + 0 * w, w); - UpdateW(src2, best_rgb_y + 1 * w, w); - diff_sum += UpdateChroma(src1, src2, best_rgb_uv, NULL, uv_w); - - // update two rows of Y and one row of RGB - for (i = 0; i < 2 * w; ++i) { - const int off = i + j * w; - const int diff_y = target_y[off] - best_rgb_y[i]; - const int new_y = (int)best_y[off] + diff_y; - best_y[off] = clip_y(new_y); - } - for (i = 0; i < uv_w; ++i) { - const int off = 3 * (i + (j >> 1) * uv_w); - int W; - for (k = 0; k <= 2; ++k) { - const int diff_uv = (int)target_uv[off + k] - best_rgb_uv[3 * i + k]; - best_uv[off + k] += diff_uv; - } - W = RGBToGray(best_uv[off + 0], best_uv[off + 1], best_uv[off + 2]); - for (k = 0; k <= 2; ++k) { - best_uv[off + k] -= W; - } - } - } - // test exit condition - if (diff_sum > 0) { - const int improvement = 100 * abs(diff_sum - old_diff_sum) / diff_sum; - // Check if first iteration gave good result already, without a large - // jump of improvement (otherwise it means we need to try few extra - // iterations, just to be sure). - if (iter == 0 && diff_sum < first_diff_threshold && - improvement < min_first_improvement) { - break; - } - // then, check if improvement is stalling. - if (improvement < min_improvement) { - break; - } - } else { - break; - } - } - - // final reconstruction - ok = ConvertWRGBToYUV(best_y, best_uv, picture); - - End: - WebPSafeFree(best_y); - WebPSafeFree(best_uv); - WebPSafeFree(target_y); - WebPSafeFree(target_uv); - WebPSafeFree(best_rgb_y); - WebPSafeFree(best_rgb_uv); - WebPSafeFree(tmp_buffer); - return ok; -} -#undef SAFE_ALLOC - -//------------------------------------------------------------------------------ -// "Fast" regular RGB->YUV - -#define SUM4(ptr, step) LinearToGamma( \ - GammaToLinear((ptr)[0]) + \ - GammaToLinear((ptr)[(step)]) + \ - GammaToLinear((ptr)[rgb_stride]) + \ - GammaToLinear((ptr)[rgb_stride + (step)]), 0) \ - -#define SUM2(ptr) \ - LinearToGamma(GammaToLinear((ptr)[0]) + GammaToLinear((ptr)[rgb_stride]), 1) - -#define SUM2ALPHA(ptr) ((ptr)[0] + (ptr)[rgb_stride]) -#define SUM4ALPHA(ptr) (SUM2ALPHA(ptr) + SUM2ALPHA((ptr) + 4)) - -#if defined(USE_INVERSE_ALPHA_TABLE) - -static const int kAlphaFix = 19; -// Following table is (1 << kAlphaFix) / a. The (v * kInvAlpha[a]) >> kAlphaFix -// formula is then equal to v / a in most (99.6%) cases. Note that this table -// and constant are adjusted very tightly to fit 32b arithmetic. -// In particular, they use the fact that the operands for 'v / a' are actually -// derived as v = (a0.p0 + a1.p1 + a2.p2 + a3.p3) and a = a0 + a1 + a2 + a3 -// with ai in [0..255] and pi in [0..1<<kGammaFix). The constraint to avoid -// overflow is: kGammaFix + kAlphaFix <= 31. -static const uint32_t kInvAlpha[4 * 0xff + 1] = { - 0, /* alpha = 0 */ - 524288, 262144, 174762, 131072, 104857, 87381, 74898, 65536, - 58254, 52428, 47662, 43690, 40329, 37449, 34952, 32768, - 30840, 29127, 27594, 26214, 24966, 23831, 22795, 21845, - 20971, 20164, 19418, 18724, 18078, 17476, 16912, 16384, - 15887, 15420, 14979, 14563, 14169, 13797, 13443, 13107, - 12787, 12483, 12192, 11915, 11650, 11397, 11155, 10922, - 10699, 10485, 10280, 10082, 9892, 9709, 9532, 9362, - 9198, 9039, 8886, 8738, 8594, 8456, 8322, 8192, - 8065, 7943, 7825, 7710, 7598, 7489, 7384, 7281, - 7182, 7084, 6990, 6898, 6808, 6721, 6636, 6553, - 6472, 6393, 6316, 6241, 6168, 6096, 6026, 5957, - 5890, 5825, 5761, 5698, 5637, 5577, 5518, 5461, - 5405, 5349, 5295, 5242, 5190, 5140, 5090, 5041, - 4993, 4946, 4899, 4854, 4809, 4766, 4723, 4681, - 4639, 4599, 4559, 4519, 4481, 4443, 4405, 4369, - 4332, 4297, 4262, 4228, 4194, 4161, 4128, 4096, - 4064, 4032, 4002, 3971, 3942, 3912, 3883, 3855, - 3826, 3799, 3771, 3744, 3718, 3692, 3666, 3640, - 3615, 3591, 3566, 3542, 3518, 3495, 3472, 3449, - 3426, 3404, 3382, 3360, 3339, 3318, 3297, 3276, - 3256, 3236, 3216, 3196, 3177, 3158, 3139, 3120, - 3102, 3084, 3066, 3048, 3030, 3013, 2995, 2978, - 2962, 2945, 2928, 2912, 2896, 2880, 2864, 2849, - 2833, 2818, 2803, 2788, 2774, 2759, 2744, 2730, - 2716, 2702, 2688, 2674, 2661, 2647, 2634, 2621, - 2608, 2595, 2582, 2570, 2557, 2545, 2532, 2520, - 2508, 2496, 2484, 2473, 2461, 2449, 2438, 2427, - 2416, 2404, 2394, 2383, 2372, 2361, 2351, 2340, - 2330, 2319, 2309, 2299, 2289, 2279, 2269, 2259, - 2250, 2240, 2231, 2221, 2212, 2202, 2193, 2184, - 2175, 2166, 2157, 2148, 2139, 2131, 2122, 2114, - 2105, 2097, 2088, 2080, 2072, 2064, 2056, 2048, - 2040, 2032, 2024, 2016, 2008, 2001, 1993, 1985, - 1978, 1971, 1963, 1956, 1949, 1941, 1934, 1927, - 1920, 1913, 1906, 1899, 1892, 1885, 1879, 1872, - 1865, 1859, 1852, 1846, 1839, 1833, 1826, 1820, - 1814, 1807, 1801, 1795, 1789, 1783, 1777, 1771, - 1765, 1759, 1753, 1747, 1741, 1736, 1730, 1724, - 1718, 1713, 1707, 1702, 1696, 1691, 1685, 1680, - 1675, 1669, 1664, 1659, 1653, 1648, 1643, 1638, - 1633, 1628, 1623, 1618, 1613, 1608, 1603, 1598, - 1593, 1588, 1583, 1579, 1574, 1569, 1565, 1560, - 1555, 1551, 1546, 1542, 1537, 1533, 1528, 1524, - 1519, 1515, 1510, 1506, 1502, 1497, 1493, 1489, - 1485, 1481, 1476, 1472, 1468, 1464, 1460, 1456, - 1452, 1448, 1444, 1440, 1436, 1432, 1428, 1424, - 1420, 1416, 1413, 1409, 1405, 1401, 1398, 1394, - 1390, 1387, 1383, 1379, 1376, 1372, 1368, 1365, - 1361, 1358, 1354, 1351, 1347, 1344, 1340, 1337, - 1334, 1330, 1327, 1323, 1320, 1317, 1314, 1310, - 1307, 1304, 1300, 1297, 1294, 1291, 1288, 1285, - 1281, 1278, 1275, 1272, 1269, 1266, 1263, 1260, - 1257, 1254, 1251, 1248, 1245, 1242, 1239, 1236, - 1233, 1230, 1227, 1224, 1222, 1219, 1216, 1213, - 1210, 1208, 1205, 1202, 1199, 1197, 1194, 1191, - 1188, 1186, 1183, 1180, 1178, 1175, 1172, 1170, - 1167, 1165, 1162, 1159, 1157, 1154, 1152, 1149, - 1147, 1144, 1142, 1139, 1137, 1134, 1132, 1129, - 1127, 1125, 1122, 1120, 1117, 1115, 1113, 1110, - 1108, 1106, 1103, 1101, 1099, 1096, 1094, 1092, - 1089, 1087, 1085, 1083, 1081, 1078, 1076, 1074, - 1072, 1069, 1067, 1065, 1063, 1061, 1059, 1057, - 1054, 1052, 1050, 1048, 1046, 1044, 1042, 1040, - 1038, 1036, 1034, 1032, 1030, 1028, 1026, 1024, - 1022, 1020, 1018, 1016, 1014, 1012, 1010, 1008, - 1006, 1004, 1002, 1000, 998, 996, 994, 992, - 991, 989, 987, 985, 983, 981, 979, 978, - 976, 974, 972, 970, 969, 967, 965, 963, - 961, 960, 958, 956, 954, 953, 951, 949, - 948, 946, 944, 942, 941, 939, 937, 936, - 934, 932, 931, 929, 927, 926, 924, 923, - 921, 919, 918, 916, 914, 913, 911, 910, - 908, 907, 905, 903, 902, 900, 899, 897, - 896, 894, 893, 891, 890, 888, 887, 885, - 884, 882, 881, 879, 878, 876, 875, 873, - 872, 870, 869, 868, 866, 865, 863, 862, - 860, 859, 858, 856, 855, 853, 852, 851, - 849, 848, 846, 845, 844, 842, 841, 840, - 838, 837, 836, 834, 833, 832, 830, 829, - 828, 826, 825, 824, 823, 821, 820, 819, - 817, 816, 815, 814, 812, 811, 810, 809, - 807, 806, 805, 804, 802, 801, 800, 799, - 798, 796, 795, 794, 793, 791, 790, 789, - 788, 787, 786, 784, 783, 782, 781, 780, - 779, 777, 776, 775, 774, 773, 772, 771, - 769, 768, 767, 766, 765, 764, 763, 762, - 760, 759, 758, 757, 756, 755, 754, 753, - 752, 751, 750, 748, 747, 746, 745, 744, - 743, 742, 741, 740, 739, 738, 737, 736, - 735, 734, 733, 732, 731, 730, 729, 728, - 727, 726, 725, 724, 723, 722, 721, 720, - 719, 718, 717, 716, 715, 714, 713, 712, - 711, 710, 709, 708, 707, 706, 705, 704, - 703, 702, 701, 700, 699, 699, 698, 697, - 696, 695, 694, 693, 692, 691, 690, 689, - 688, 688, 687, 686, 685, 684, 683, 682, - 681, 680, 680, 679, 678, 677, 676, 675, - 674, 673, 673, 672, 671, 670, 669, 668, - 667, 667, 666, 665, 664, 663, 662, 661, - 661, 660, 659, 658, 657, 657, 656, 655, - 654, 653, 652, 652, 651, 650, 649, 648, - 648, 647, 646, 645, 644, 644, 643, 642, - 641, 640, 640, 639, 638, 637, 637, 636, - 635, 634, 633, 633, 632, 631, 630, 630, - 629, 628, 627, 627, 626, 625, 624, 624, - 623, 622, 621, 621, 620, 619, 618, 618, - 617, 616, 616, 615, 614, 613, 613, 612, - 611, 611, 610, 609, 608, 608, 607, 606, - 606, 605, 604, 604, 603, 602, 601, 601, - 600, 599, 599, 598, 597, 597, 596, 595, - 595, 594, 593, 593, 592, 591, 591, 590, - 589, 589, 588, 587, 587, 586, 585, 585, - 584, 583, 583, 582, 581, 581, 580, 579, - 579, 578, 578, 577, 576, 576, 575, 574, - 574, 573, 572, 572, 571, 571, 570, 569, - 569, 568, 568, 567, 566, 566, 565, 564, - 564, 563, 563, 562, 561, 561, 560, 560, - 559, 558, 558, 557, 557, 556, 555, 555, - 554, 554, 553, 553, 552, 551, 551, 550, - 550, 549, 548, 548, 547, 547, 546, 546, - 545, 544, 544, 543, 543, 542, 542, 541, - 541, 540, 539, 539, 538, 538, 537, 537, - 536, 536, 535, 534, 534, 533, 533, 532, - 532, 531, 531, 530, 530, 529, 529, 528, - 527, 527, 526, 526, 525, 525, 524, 524, - 523, 523, 522, 522, 521, 521, 520, 520, - 519, 519, 518, 518, 517, 517, 516, 516, - 515, 515, 514, 514 -}; - -// Note that LinearToGamma() expects the values to be premultiplied by 4, -// so we incorporate this factor 4 inside the DIVIDE_BY_ALPHA macro directly. -#define DIVIDE_BY_ALPHA(sum, a) (((sum) * kInvAlpha[(a)]) >> (kAlphaFix - 2)) - -#else - -#define DIVIDE_BY_ALPHA(sum, a) (4 * (sum) / (a)) - -#endif // USE_INVERSE_ALPHA_TABLE - -static WEBP_INLINE int LinearToGammaWeighted(const uint8_t* src, - const uint8_t* a_ptr, - uint32_t total_a, int step, - int rgb_stride) { - const uint32_t sum = - a_ptr[0] * GammaToLinear(src[0]) + - a_ptr[step] * GammaToLinear(src[step]) + - a_ptr[rgb_stride] * GammaToLinear(src[rgb_stride]) + - a_ptr[rgb_stride + step] * GammaToLinear(src[rgb_stride + step]); - assert(total_a > 0 && total_a <= 4 * 0xff); -#if defined(USE_INVERSE_ALPHA_TABLE) - assert((uint64_t)sum * kInvAlpha[total_a] < ((uint64_t)1 << 32)); -#endif - return LinearToGamma(DIVIDE_BY_ALPHA(sum, total_a), 0); -} - -static WEBP_INLINE void ConvertRowToY(const uint8_t* const r_ptr, - const uint8_t* const g_ptr, - const uint8_t* const b_ptr, - int step, - uint8_t* const dst_y, - int width, - VP8Random* const rg) { - int i, j; - for (i = 0, j = 0; i < width; i += 1, j += step) { - dst_y[i] = RGBToY(r_ptr[j], g_ptr[j], b_ptr[j], rg); - } -} - -static WEBP_INLINE void AccumulateRGBA(const uint8_t* const r_ptr, - const uint8_t* const g_ptr, - const uint8_t* const b_ptr, - const uint8_t* const a_ptr, - int rgb_stride, - uint16_t* dst, int width) { - int i, j; - // we loop over 2x2 blocks and produce one R/G/B/A value for each. - for (i = 0, j = 0; i < (width >> 1); i += 1, j += 2 * 4, dst += 4) { - const uint32_t a = SUM4ALPHA(a_ptr + j); - int r, g, b; - if (a == 4 * 0xff || a == 0) { - r = SUM4(r_ptr + j, 4); - g = SUM4(g_ptr + j, 4); - b = SUM4(b_ptr + j, 4); - } else { - r = LinearToGammaWeighted(r_ptr + j, a_ptr + j, a, 4, rgb_stride); - g = LinearToGammaWeighted(g_ptr + j, a_ptr + j, a, 4, rgb_stride); - b = LinearToGammaWeighted(b_ptr + j, a_ptr + j, a, 4, rgb_stride); - } - dst[0] = r; - dst[1] = g; - dst[2] = b; - dst[3] = a; - } - if (width & 1) { - const uint32_t a = 2u * SUM2ALPHA(a_ptr + j); - int r, g, b; - if (a == 4 * 0xff || a == 0) { - r = SUM2(r_ptr + j); - g = SUM2(g_ptr + j); - b = SUM2(b_ptr + j); - } else { - r = LinearToGammaWeighted(r_ptr + j, a_ptr + j, a, 0, rgb_stride); - g = LinearToGammaWeighted(g_ptr + j, a_ptr + j, a, 0, rgb_stride); - b = LinearToGammaWeighted(b_ptr + j, a_ptr + j, a, 0, rgb_stride); - } - dst[0] = r; - dst[1] = g; - dst[2] = b; - dst[3] = a; - } -} - -static WEBP_INLINE void AccumulateRGB(const uint8_t* const r_ptr, - const uint8_t* const g_ptr, - const uint8_t* const b_ptr, - int step, int rgb_stride, - uint16_t* dst, int width) { - int i, j; - for (i = 0, j = 0; i < (width >> 1); i += 1, j += 2 * step, dst += 4) { - dst[0] = SUM4(r_ptr + j, step); - dst[1] = SUM4(g_ptr + j, step); - dst[2] = SUM4(b_ptr + j, step); - } - if (width & 1) { - dst[0] = SUM2(r_ptr + j); - dst[1] = SUM2(g_ptr + j); - dst[2] = SUM2(b_ptr + j); - } -} - -static WEBP_INLINE void ConvertRowsToUV(const uint16_t* rgb, - uint8_t* const dst_u, - uint8_t* const dst_v, - int width, - VP8Random* const rg) { - int i; - for (i = 0; i < width; i += 1, rgb += 4) { - const int r = rgb[0], g = rgb[1], b = rgb[2]; - dst_u[i] = RGBToU(r, g, b, rg); - dst_v[i] = RGBToV(r, g, b, rg); - } -} - -static int ImportYUVAFromRGBA(const uint8_t* const r_ptr, - const uint8_t* const g_ptr, - const uint8_t* const b_ptr, - const uint8_t* const a_ptr, - int step, // bytes per pixel - int rgb_stride, // bytes per scanline - float dithering, - int use_iterative_conversion, - WebPPicture* const picture) { - int y; - const int width = picture->width; - const int height = picture->height; - const int has_alpha = CheckNonOpaque(a_ptr, width, height, step, rgb_stride); - const int is_rgb = (r_ptr < b_ptr); // otherwise it's bgr - - picture->colorspace = has_alpha ? WEBP_YUV420A : WEBP_YUV420; - picture->use_argb = 0; - - // disable smart conversion if source is too small (overkill). - if (width < kMinDimensionIterativeConversion || - height < kMinDimensionIterativeConversion) { - use_iterative_conversion = 0; - } - - if (!WebPPictureAllocYUVA(picture, width, height)) { - return 0; - } - if (has_alpha) { - WebPInitAlphaProcessing(); - assert(step == 4); -#if defined(USE_GAMMA_COMPRESSION) && defined(USE_INVERSE_ALPHA_TABLE) - assert(kAlphaFix + kGammaFix <= 31); -#endif - } - - if (use_iterative_conversion) { - InitGammaTablesF(); - if (!PreprocessARGB(r_ptr, g_ptr, b_ptr, step, rgb_stride, picture)) { - return 0; - } - if (has_alpha) { - WebPExtractAlpha(a_ptr, rgb_stride, width, height, - picture->a, picture->a_stride); - } - } else { - const int uv_width = (width + 1) >> 1; - int use_dsp = (step == 3); // use special function in this case - // temporary storage for accumulated R/G/B values during conversion to U/V - uint16_t* const tmp_rgb = - (uint16_t*)WebPSafeMalloc(4 * uv_width, sizeof(*tmp_rgb)); - uint8_t* dst_y = picture->y; - uint8_t* dst_u = picture->u; - uint8_t* dst_v = picture->v; - uint8_t* dst_a = picture->a; - - VP8Random base_rg; - VP8Random* rg = NULL; - if (dithering > 0.) { - VP8InitRandom(&base_rg, dithering); - rg = &base_rg; - use_dsp = 0; // can't use dsp in this case - } - WebPInitConvertARGBToYUV(); - InitGammaTables(); - - if (tmp_rgb == NULL) return 0; // malloc error - - // Downsample Y/U/V planes, two rows at a time - for (y = 0; y < (height >> 1); ++y) { - int rows_have_alpha = has_alpha; - const int off1 = (2 * y + 0) * rgb_stride; - const int off2 = (2 * y + 1) * rgb_stride; - if (use_dsp) { - if (is_rgb) { - WebPConvertRGB24ToY(r_ptr + off1, dst_y, width); - WebPConvertRGB24ToY(r_ptr + off2, dst_y + picture->y_stride, width); - } else { - WebPConvertBGR24ToY(b_ptr + off1, dst_y, width); - WebPConvertBGR24ToY(b_ptr + off2, dst_y + picture->y_stride, width); - } - } else { - ConvertRowToY(r_ptr + off1, g_ptr + off1, b_ptr + off1, step, - dst_y, width, rg); - ConvertRowToY(r_ptr + off2, g_ptr + off2, b_ptr + off2, step, - dst_y + picture->y_stride, width, rg); - } - dst_y += 2 * picture->y_stride; - if (has_alpha) { - rows_have_alpha &= !WebPExtractAlpha(a_ptr + off1, rgb_stride, - width, 2, - dst_a, picture->a_stride); - dst_a += 2 * picture->a_stride; - } - // Collect averaged R/G/B(/A) - if (!rows_have_alpha) { - AccumulateRGB(r_ptr + off1, g_ptr + off1, b_ptr + off1, - step, rgb_stride, tmp_rgb, width); - } else { - AccumulateRGBA(r_ptr + off1, g_ptr + off1, b_ptr + off1, a_ptr + off1, - rgb_stride, tmp_rgb, width); - } - // Convert to U/V - if (rg == NULL) { - WebPConvertRGBA32ToUV(tmp_rgb, dst_u, dst_v, uv_width); - } else { - ConvertRowsToUV(tmp_rgb, dst_u, dst_v, uv_width, rg); - } - dst_u += picture->uv_stride; - dst_v += picture->uv_stride; - } - if (height & 1) { // extra last row - const int off = 2 * y * rgb_stride; - int row_has_alpha = has_alpha; - if (use_dsp) { - if (r_ptr < b_ptr) { - WebPConvertRGB24ToY(r_ptr + off, dst_y, width); - } else { - WebPConvertBGR24ToY(b_ptr + off, dst_y, width); - } - } else { - ConvertRowToY(r_ptr + off, g_ptr + off, b_ptr + off, step, - dst_y, width, rg); - } - if (row_has_alpha) { - row_has_alpha &= !WebPExtractAlpha(a_ptr + off, 0, width, 1, dst_a, 0); - } - // Collect averaged R/G/B(/A) - if (!row_has_alpha) { - // Collect averaged R/G/B - AccumulateRGB(r_ptr + off, g_ptr + off, b_ptr + off, - step, /* rgb_stride = */ 0, tmp_rgb, width); - } else { - AccumulateRGBA(r_ptr + off, g_ptr + off, b_ptr + off, a_ptr + off, - /* rgb_stride = */ 0, tmp_rgb, width); - } - if (rg == NULL) { - WebPConvertRGBA32ToUV(tmp_rgb, dst_u, dst_v, uv_width); - } else { - ConvertRowsToUV(tmp_rgb, dst_u, dst_v, uv_width, rg); - } - } - WebPSafeFree(tmp_rgb); - } - return 1; -} - -#undef SUM4 -#undef SUM2 -#undef SUM4ALPHA -#undef SUM2ALPHA - -//------------------------------------------------------------------------------ -// call for ARGB->YUVA conversion - -static int PictureARGBToYUVA(WebPPicture* picture, WebPEncCSP colorspace, - float dithering, int use_iterative_conversion) { - if (picture == NULL) return 0; - if (picture->argb == NULL) { - return WebPEncodingSetError(picture, VP8_ENC_ERROR_NULL_PARAMETER); - } else if ((colorspace & WEBP_CSP_UV_MASK) != WEBP_YUV420) { - return WebPEncodingSetError(picture, VP8_ENC_ERROR_INVALID_CONFIGURATION); - } else { - const uint8_t* const argb = (const uint8_t*)picture->argb; - const uint8_t* const r = ALPHA_IS_LAST ? argb + 2 : argb + 1; - const uint8_t* const g = ALPHA_IS_LAST ? argb + 1 : argb + 2; - const uint8_t* const b = ALPHA_IS_LAST ? argb + 0 : argb + 3; - const uint8_t* const a = ALPHA_IS_LAST ? argb + 3 : argb + 0; - - picture->colorspace = WEBP_YUV420; - return ImportYUVAFromRGBA(r, g, b, a, 4, 4 * picture->argb_stride, - dithering, use_iterative_conversion, picture); - } -} - -int WebPPictureARGBToYUVADithered(WebPPicture* picture, WebPEncCSP colorspace, - float dithering) { - return PictureARGBToYUVA(picture, colorspace, dithering, 0); -} - -int WebPPictureARGBToYUVA(WebPPicture* picture, WebPEncCSP colorspace) { - return PictureARGBToYUVA(picture, colorspace, 0.f, 0); -} - -int WebPPictureSmartARGBToYUVA(WebPPicture* picture) { - return PictureARGBToYUVA(picture, WEBP_YUV420, 0.f, 1); -} - -//------------------------------------------------------------------------------ -// call for YUVA -> ARGB conversion - -int WebPPictureYUVAToARGB(WebPPicture* picture) { - if (picture == NULL) return 0; - if (picture->y == NULL || picture->u == NULL || picture->v == NULL) { - return WebPEncodingSetError(picture, VP8_ENC_ERROR_NULL_PARAMETER); - } - if ((picture->colorspace & WEBP_CSP_ALPHA_BIT) && picture->a == NULL) { - return WebPEncodingSetError(picture, VP8_ENC_ERROR_NULL_PARAMETER); - } - if ((picture->colorspace & WEBP_CSP_UV_MASK) != WEBP_YUV420) { - return WebPEncodingSetError(picture, VP8_ENC_ERROR_INVALID_CONFIGURATION); - } - // Allocate a new argb buffer (discarding the previous one). - if (!WebPPictureAllocARGB(picture, picture->width, picture->height)) return 0; - picture->use_argb = 1; - - // Convert - { - int y; - const int width = picture->width; - const int height = picture->height; - const int argb_stride = 4 * picture->argb_stride; - uint8_t* dst = (uint8_t*)picture->argb; - const uint8_t *cur_u = picture->u, *cur_v = picture->v, *cur_y = picture->y; - WebPUpsampleLinePairFunc upsample = WebPGetLinePairConverter(ALPHA_IS_LAST); - - // First row, with replicated top samples. - upsample(cur_y, NULL, cur_u, cur_v, cur_u, cur_v, dst, NULL, width); - cur_y += picture->y_stride; - dst += argb_stride; - // Center rows. - for (y = 1; y + 1 < height; y += 2) { - const uint8_t* const top_u = cur_u; - const uint8_t* const top_v = cur_v; - cur_u += picture->uv_stride; - cur_v += picture->uv_stride; - upsample(cur_y, cur_y + picture->y_stride, top_u, top_v, cur_u, cur_v, - dst, dst + argb_stride, width); - cur_y += 2 * picture->y_stride; - dst += 2 * argb_stride; - } - // Last row (if needed), with replicated bottom samples. - if (height > 1 && !(height & 1)) { - upsample(cur_y, NULL, cur_u, cur_v, cur_u, cur_v, dst, NULL, width); - } - // Insert alpha values if needed, in replacement for the default 0xff ones. - if (picture->colorspace & WEBP_CSP_ALPHA_BIT) { - for (y = 0; y < height; ++y) { - uint32_t* const argb_dst = picture->argb + y * picture->argb_stride; - const uint8_t* const src = picture->a + y * picture->a_stride; - int x; - for (x = 0; x < width; ++x) { - argb_dst[x] = (argb_dst[x] & 0x00ffffffu) | ((uint32_t)src[x] << 24); - } - } - } - } - return 1; -} - -//------------------------------------------------------------------------------ -// automatic import / conversion - -static int Import(WebPPicture* const picture, - const uint8_t* const rgb, int rgb_stride, - int step, int swap_rb, int import_alpha) { - int y; - const uint8_t* const r_ptr = rgb + (swap_rb ? 2 : 0); - const uint8_t* const g_ptr = rgb + 1; - const uint8_t* const b_ptr = rgb + (swap_rb ? 0 : 2); - const uint8_t* const a_ptr = import_alpha ? rgb + 3 : NULL; - const int width = picture->width; - const int height = picture->height; - - if (!picture->use_argb) { - return ImportYUVAFromRGBA(r_ptr, g_ptr, b_ptr, a_ptr, step, rgb_stride, - 0.f /* no dithering */, 0, picture); - } - if (!WebPPictureAlloc(picture)) return 0; - - VP8EncDspARGBInit(); - - if (import_alpha) { - assert(step == 4); - for (y = 0; y < height; ++y) { - uint32_t* const dst = &picture->argb[y * picture->argb_stride]; - const int offset = y * rgb_stride; - VP8PackARGB(a_ptr + offset, r_ptr + offset, g_ptr + offset, - b_ptr + offset, width, dst); - } - } else { - assert(step >= 3); - for (y = 0; y < height; ++y) { - uint32_t* const dst = &picture->argb[y * picture->argb_stride]; - const int offset = y * rgb_stride; - VP8PackRGB(r_ptr + offset, g_ptr + offset, b_ptr + offset, - width, step, dst); - } - } - return 1; -} - -// Public API - -int WebPPictureImportRGB(WebPPicture* picture, - const uint8_t* rgb, int rgb_stride) { - return (picture != NULL && rgb != NULL) - ? Import(picture, rgb, rgb_stride, 3, 0, 0) - : 0; -} - -int WebPPictureImportBGR(WebPPicture* picture, - const uint8_t* rgb, int rgb_stride) { - return (picture != NULL && rgb != NULL) - ? Import(picture, rgb, rgb_stride, 3, 1, 0) - : 0; -} - -int WebPPictureImportRGBA(WebPPicture* picture, - const uint8_t* rgba, int rgba_stride) { - return (picture != NULL && rgba != NULL) - ? Import(picture, rgba, rgba_stride, 4, 0, 1) - : 0; -} - -int WebPPictureImportBGRA(WebPPicture* picture, - const uint8_t* rgba, int rgba_stride) { - return (picture != NULL && rgba != NULL) - ? Import(picture, rgba, rgba_stride, 4, 1, 1) - : 0; -} - -int WebPPictureImportRGBX(WebPPicture* picture, - const uint8_t* rgba, int rgba_stride) { - return (picture != NULL && rgba != NULL) - ? Import(picture, rgba, rgba_stride, 4, 0, 0) - : 0; -} - -int WebPPictureImportBGRX(WebPPicture* picture, - const uint8_t* rgba, int rgba_stride) { - return (picture != NULL && rgba != NULL) - ? Import(picture, rgba, rgba_stride, 4, 1, 0) - : 0; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/enc/picture_psnr.c b/drivers/webp/enc/picture_psnr.c deleted file mode 100644 index 81ab1b5ca1..0000000000 --- a/drivers/webp/enc/picture_psnr.c +++ /dev/null @@ -1,177 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// WebPPicture tools for measuring distortion -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <math.h> -#include <stdlib.h> - -#include "./vp8enci.h" -#include "../utils/utils.h" - -//------------------------------------------------------------------------------ -// local-min distortion -// -// For every pixel in the *reference* picture, we search for the local best -// match in the compressed image. This is not a symmetrical measure. - -#define RADIUS 2 // search radius. Shouldn't be too large. - -static void AccumulateLSIM(const uint8_t* src, int src_stride, - const uint8_t* ref, int ref_stride, - int w, int h, VP8DistoStats* stats) { - int x, y; - double total_sse = 0.; - for (y = 0; y < h; ++y) { - const int y_0 = (y - RADIUS < 0) ? 0 : y - RADIUS; - const int y_1 = (y + RADIUS + 1 >= h) ? h : y + RADIUS + 1; - for (x = 0; x < w; ++x) { - const int x_0 = (x - RADIUS < 0) ? 0 : x - RADIUS; - const int x_1 = (x + RADIUS + 1 >= w) ? w : x + RADIUS + 1; - double best_sse = 255. * 255.; - const double value = (double)ref[y * ref_stride + x]; - int i, j; - for (j = y_0; j < y_1; ++j) { - const uint8_t* const s = src + j * src_stride; - for (i = x_0; i < x_1; ++i) { - const double diff = s[i] - value; - const double sse = diff * diff; - if (sse < best_sse) best_sse = sse; - } - } - total_sse += best_sse; - } - } - stats->w = w * h; - stats->xm = 0; - stats->ym = 0; - stats->xxm = total_sse; - stats->yym = 0; - stats->xxm = 0; -} -#undef RADIUS - -//------------------------------------------------------------------------------ -// Distortion - -// Max value returned in case of exact similarity. -static const double kMinDistortion_dB = 99.; -static float GetPSNR(const double v) { - return (float)((v > 0.) ? -4.3429448 * log(v / (255 * 255.)) - : kMinDistortion_dB); -} - -int WebPPictureDistortion(const WebPPicture* src, const WebPPicture* ref, - int type, float result[5]) { - VP8DistoStats stats[5]; - int w, h; - - memset(stats, 0, sizeof(stats)); - - VP8SSIMDspInit(); - - if (src == NULL || ref == NULL || - src->width != ref->width || src->height != ref->height || - src->use_argb != ref->use_argb || result == NULL) { - return 0; - } - w = src->width; - h = src->height; - - if (src->use_argb == 1) { - if (src->argb == NULL || ref->argb == NULL) { - return 0; - } else { - int i, j, c; - uint8_t* tmp1, *tmp2; - uint8_t* const tmp_plane = - (uint8_t*)WebPSafeMalloc(2ULL * w * h, sizeof(*tmp_plane)); - if (tmp_plane == NULL) return 0; - tmp1 = tmp_plane; - tmp2 = tmp_plane + w * h; - for (c = 0; c < 4; ++c) { - for (j = 0; j < h; ++j) { - for (i = 0; i < w; ++i) { - tmp1[j * w + i] = src->argb[i + j * src->argb_stride] >> (c * 8); - tmp2[j * w + i] = ref->argb[i + j * ref->argb_stride] >> (c * 8); - } - } - if (type >= 2) { - AccumulateLSIM(tmp1, w, tmp2, w, w, h, &stats[c]); - } else { - VP8SSIMAccumulatePlane(tmp1, w, tmp2, w, w, h, &stats[c]); - } - } - free(tmp_plane); - } - } else { - int has_alpha, uv_w, uv_h; - if (src->y == NULL || ref->y == NULL || - src->u == NULL || ref->u == NULL || - src->v == NULL || ref->v == NULL) { - return 0; - } - has_alpha = !!(src->colorspace & WEBP_CSP_ALPHA_BIT); - if (has_alpha != !!(ref->colorspace & WEBP_CSP_ALPHA_BIT) || - (has_alpha && (src->a == NULL || ref->a == NULL))) { - return 0; - } - - uv_w = (src->width + 1) >> 1; - uv_h = (src->height + 1) >> 1; - if (type >= 2) { - AccumulateLSIM(src->y, src->y_stride, ref->y, ref->y_stride, - w, h, &stats[0]); - AccumulateLSIM(src->u, src->uv_stride, ref->u, ref->uv_stride, - uv_w, uv_h, &stats[1]); - AccumulateLSIM(src->v, src->uv_stride, ref->v, ref->uv_stride, - uv_w, uv_h, &stats[2]); - if (has_alpha) { - AccumulateLSIM(src->a, src->a_stride, ref->a, ref->a_stride, - w, h, &stats[3]); - } - } else { - VP8SSIMAccumulatePlane(src->y, src->y_stride, - ref->y, ref->y_stride, - w, h, &stats[0]); - VP8SSIMAccumulatePlane(src->u, src->uv_stride, - ref->u, ref->uv_stride, - uv_w, uv_h, &stats[1]); - VP8SSIMAccumulatePlane(src->v, src->uv_stride, - ref->v, ref->uv_stride, - uv_w, uv_h, &stats[2]); - if (has_alpha) { - VP8SSIMAccumulatePlane(src->a, src->a_stride, - ref->a, ref->a_stride, - w, h, &stats[3]); - } - } - } - // Final stat calculations. - { - int c; - for (c = 0; c <= 4; ++c) { - if (type == 1) { - const double v = VP8SSIMGet(&stats[c]); - result[c] = (float)((v < 1.) ? -10.0 * log10(1. - v) - : kMinDistortion_dB); - } else { - const double v = VP8SSIMGetSquaredError(&stats[c]); - result[c] = GetPSNR(v); - } - // Accumulate forward - if (c < 4) VP8SSIMAddStats(&stats[c], &stats[4]); - } - } - return 1; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/enc/picture_rescale.c b/drivers/webp/enc/picture_rescale.c deleted file mode 100644 index 9f19e8e80f..0000000000 --- a/drivers/webp/enc/picture_rescale.c +++ /dev/null @@ -1,264 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// WebPPicture tools: copy, crop, rescaling and view. -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> -#include <stdlib.h> - -#include "./vp8enci.h" -#include "../utils/rescaler.h" -#include "../utils/utils.h" - -#define HALVE(x) (((x) + 1) >> 1) - -// Grab the 'specs' (writer, *opaque, width, height...) from 'src' and copy them -// into 'dst'. Mark 'dst' as not owning any memory. -static void PictureGrabSpecs(const WebPPicture* const src, - WebPPicture* const dst) { - assert(src != NULL && dst != NULL); - *dst = *src; - WebPPictureResetBuffers(dst); -} - -//------------------------------------------------------------------------------ - -// Adjust top-left corner to chroma sample position. -static void SnapTopLeftPosition(const WebPPicture* const pic, - int* const left, int* const top) { - if (!pic->use_argb) { - *left &= ~1; - *top &= ~1; - } -} - -// Adjust top-left corner and verify that the sub-rectangle is valid. -static int AdjustAndCheckRectangle(const WebPPicture* const pic, - int* const left, int* const top, - int width, int height) { - SnapTopLeftPosition(pic, left, top); - if ((*left) < 0 || (*top) < 0) return 0; - if (width <= 0 || height <= 0) return 0; - if ((*left) + width > pic->width) return 0; - if ((*top) + height > pic->height) return 0; - return 1; -} - -int WebPPictureCopy(const WebPPicture* src, WebPPicture* dst) { - if (src == NULL || dst == NULL) return 0; - if (src == dst) return 1; - - PictureGrabSpecs(src, dst); - if (!WebPPictureAlloc(dst)) return 0; - - if (!src->use_argb) { - WebPCopyPlane(src->y, src->y_stride, - dst->y, dst->y_stride, dst->width, dst->height); - WebPCopyPlane(src->u, src->uv_stride, dst->u, dst->uv_stride, - HALVE(dst->width), HALVE(dst->height)); - WebPCopyPlane(src->v, src->uv_stride, dst->v, dst->uv_stride, - HALVE(dst->width), HALVE(dst->height)); - if (dst->a != NULL) { - WebPCopyPlane(src->a, src->a_stride, - dst->a, dst->a_stride, dst->width, dst->height); - } - } else { - WebPCopyPlane((const uint8_t*)src->argb, 4 * src->argb_stride, - (uint8_t*)dst->argb, 4 * dst->argb_stride, - 4 * dst->width, dst->height); - } - return 1; -} - -int WebPPictureIsView(const WebPPicture* picture) { - if (picture == NULL) return 0; - if (picture->use_argb) { - return (picture->memory_argb_ == NULL); - } - return (picture->memory_ == NULL); -} - -int WebPPictureView(const WebPPicture* src, - int left, int top, int width, int height, - WebPPicture* dst) { - if (src == NULL || dst == NULL) return 0; - - // verify rectangle position. - if (!AdjustAndCheckRectangle(src, &left, &top, width, height)) return 0; - - if (src != dst) { // beware of aliasing! We don't want to leak 'memory_'. - PictureGrabSpecs(src, dst); - } - dst->width = width; - dst->height = height; - if (!src->use_argb) { - dst->y = src->y + top * src->y_stride + left; - dst->u = src->u + (top >> 1) * src->uv_stride + (left >> 1); - dst->v = src->v + (top >> 1) * src->uv_stride + (left >> 1); - dst->y_stride = src->y_stride; - dst->uv_stride = src->uv_stride; - if (src->a != NULL) { - dst->a = src->a + top * src->a_stride + left; - dst->a_stride = src->a_stride; - } - } else { - dst->argb = src->argb + top * src->argb_stride + left; - dst->argb_stride = src->argb_stride; - } - return 1; -} - -//------------------------------------------------------------------------------ -// Picture cropping - -int WebPPictureCrop(WebPPicture* pic, - int left, int top, int width, int height) { - WebPPicture tmp; - - if (pic == NULL) return 0; - if (!AdjustAndCheckRectangle(pic, &left, &top, width, height)) return 0; - - PictureGrabSpecs(pic, &tmp); - tmp.width = width; - tmp.height = height; - if (!WebPPictureAlloc(&tmp)) return 0; - - if (!pic->use_argb) { - const int y_offset = top * pic->y_stride + left; - const int uv_offset = (top / 2) * pic->uv_stride + left / 2; - WebPCopyPlane(pic->y + y_offset, pic->y_stride, - tmp.y, tmp.y_stride, width, height); - WebPCopyPlane(pic->u + uv_offset, pic->uv_stride, - tmp.u, tmp.uv_stride, HALVE(width), HALVE(height)); - WebPCopyPlane(pic->v + uv_offset, pic->uv_stride, - tmp.v, tmp.uv_stride, HALVE(width), HALVE(height)); - - if (tmp.a != NULL) { - const int a_offset = top * pic->a_stride + left; - WebPCopyPlane(pic->a + a_offset, pic->a_stride, - tmp.a, tmp.a_stride, width, height); - } - } else { - const uint8_t* const src = - (const uint8_t*)(pic->argb + top * pic->argb_stride + left); - WebPCopyPlane(src, pic->argb_stride * 4, (uint8_t*)tmp.argb, - tmp.argb_stride * 4, width * 4, height); - } - WebPPictureFree(pic); - *pic = tmp; - return 1; -} - -//------------------------------------------------------------------------------ -// Simple picture rescaler - -static void RescalePlane(const uint8_t* src, - int src_width, int src_height, int src_stride, - uint8_t* dst, - int dst_width, int dst_height, int dst_stride, - rescaler_t* const work, - int num_channels) { - WebPRescaler rescaler; - int y = 0; - WebPRescalerInit(&rescaler, src_width, src_height, - dst, dst_width, dst_height, dst_stride, - num_channels, work); - while (y < src_height) { - y += WebPRescalerImport(&rescaler, src_height - y, - src + y * src_stride, src_stride); - WebPRescalerExport(&rescaler); - } -} - -static void AlphaMultiplyARGB(WebPPicture* const pic, int inverse) { - assert(pic->argb != NULL); - WebPMultARGBRows((uint8_t*)pic->argb, pic->argb_stride * sizeof(*pic->argb), - pic->width, pic->height, inverse); -} - -static void AlphaMultiplyY(WebPPicture* const pic, int inverse) { - if (pic->a != NULL) { - WebPMultRows(pic->y, pic->y_stride, pic->a, pic->a_stride, - pic->width, pic->height, inverse); - } -} - -int WebPPictureRescale(WebPPicture* pic, int width, int height) { - WebPPicture tmp; - int prev_width, prev_height; - rescaler_t* work; - - if (pic == NULL) return 0; - prev_width = pic->width; - prev_height = pic->height; - if (!WebPRescalerGetScaledDimensions( - prev_width, prev_height, &width, &height)) { - return 0; - } - - PictureGrabSpecs(pic, &tmp); - tmp.width = width; - tmp.height = height; - if (!WebPPictureAlloc(&tmp)) return 0; - - if (!pic->use_argb) { - work = (rescaler_t*)WebPSafeMalloc(2ULL * width, sizeof(*work)); - if (work == NULL) { - WebPPictureFree(&tmp); - return 0; - } - // If present, we need to rescale alpha first (for AlphaMultiplyY). - if (pic->a != NULL) { - WebPInitAlphaProcessing(); - RescalePlane(pic->a, prev_width, prev_height, pic->a_stride, - tmp.a, width, height, tmp.a_stride, work, 1); - } - - // We take transparency into account on the luma plane only. That's not - // totally exact blending, but still is a good approximation. - AlphaMultiplyY(pic, 0); - RescalePlane(pic->y, prev_width, prev_height, pic->y_stride, - tmp.y, width, height, tmp.y_stride, work, 1); - AlphaMultiplyY(&tmp, 1); - - RescalePlane(pic->u, - HALVE(prev_width), HALVE(prev_height), pic->uv_stride, - tmp.u, - HALVE(width), HALVE(height), tmp.uv_stride, work, 1); - RescalePlane(pic->v, - HALVE(prev_width), HALVE(prev_height), pic->uv_stride, - tmp.v, - HALVE(width), HALVE(height), tmp.uv_stride, work, 1); - } else { - work = (rescaler_t*)WebPSafeMalloc(2ULL * width * 4, sizeof(*work)); - if (work == NULL) { - WebPPictureFree(&tmp); - return 0; - } - // In order to correctly interpolate colors, we need to apply the alpha - // weighting first (black-matting), scale the RGB values, and remove - // the premultiplication afterward (while preserving the alpha channel). - WebPInitAlphaProcessing(); - AlphaMultiplyARGB(pic, 0); - RescalePlane((const uint8_t*)pic->argb, prev_width, prev_height, - pic->argb_stride * 4, - (uint8_t*)tmp.argb, width, height, - tmp.argb_stride * 4, - work, 4); - AlphaMultiplyARGB(&tmp, 1); - } - WebPPictureFree(pic); - WebPSafeFree(work); - *pic = tmp; - return 1; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/enc/picture_tools.c b/drivers/webp/enc/picture_tools.c deleted file mode 100644 index bf97af8408..0000000000 --- a/drivers/webp/enc/picture_tools.c +++ /dev/null @@ -1,226 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// WebPPicture tools: alpha handling, etc. -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> - -#include "./vp8enci.h" -#include "../dsp/yuv.h" - -static WEBP_INLINE uint32_t MakeARGB32(int r, int g, int b) { - return (0xff000000u | (r << 16) | (g << 8) | b); -} - -//------------------------------------------------------------------------------ -// Helper: clean up fully transparent area to help compressibility. - -#define SIZE 8 -#define SIZE2 (SIZE / 2) -static int is_transparent_area(const uint8_t* ptr, int stride, int size) { - int y, x; - for (y = 0; y < size; ++y) { - for (x = 0; x < size; ++x) { - if (ptr[x]) { - return 0; - } - } - ptr += stride; - } - return 1; -} - -static int is_transparent_argb_area(const uint32_t* ptr, int stride, int size) { - int y, x; - for (y = 0; y < size; ++y) { - for (x = 0; x < size; ++x) { - if (ptr[x] & 0xff000000u) { - return 0; - } - } - ptr += stride; - } - return 1; -} - -static void flatten(uint8_t* ptr, int v, int stride, int size) { - int y; - for (y = 0; y < size; ++y) { - memset(ptr, v, size); - ptr += stride; - } -} - -static void flatten_argb(uint32_t* ptr, uint32_t v, int stride, int size) { - int x, y; - for (y = 0; y < size; ++y) { - for (x = 0; x < size; ++x) ptr[x] = v; - ptr += stride; - } -} - -void WebPCleanupTransparentArea(WebPPicture* pic) { - int x, y, w, h; - if (pic == NULL) return; - w = pic->width / SIZE; - h = pic->height / SIZE; - - // note: we ignore the left-overs on right/bottom - if (pic->use_argb) { - uint32_t argb_value = 0; - for (y = 0; y < h; ++y) { - int need_reset = 1; - for (x = 0; x < w; ++x) { - const int off = (y * pic->argb_stride + x) * SIZE; - if (is_transparent_argb_area(pic->argb + off, pic->argb_stride, SIZE)) { - if (need_reset) { - argb_value = pic->argb[off]; - need_reset = 0; - } - flatten_argb(pic->argb + off, argb_value, pic->argb_stride, SIZE); - } else { - need_reset = 1; - } - } - } - } else { - const uint8_t* const a_ptr = pic->a; - int values[3] = { 0 }; - if (a_ptr == NULL) return; // nothing to do - for (y = 0; y < h; ++y) { - int need_reset = 1; - for (x = 0; x < w; ++x) { - const int off_a = (y * pic->a_stride + x) * SIZE; - const int off_y = (y * pic->y_stride + x) * SIZE; - const int off_uv = (y * pic->uv_stride + x) * SIZE2; - if (is_transparent_area(a_ptr + off_a, pic->a_stride, SIZE)) { - if (need_reset) { - values[0] = pic->y[off_y]; - values[1] = pic->u[off_uv]; - values[2] = pic->v[off_uv]; - need_reset = 0; - } - flatten(pic->y + off_y, values[0], pic->y_stride, SIZE); - flatten(pic->u + off_uv, values[1], pic->uv_stride, SIZE2); - flatten(pic->v + off_uv, values[2], pic->uv_stride, SIZE2); - } else { - need_reset = 1; - } - } - } - } -} - -#undef SIZE -#undef SIZE2 - -void WebPCleanupTransparentAreaLossless(WebPPicture* const pic) { - int x, y, w, h; - uint32_t* argb; - assert(pic != NULL && pic->use_argb); - w = pic->width; - h = pic->height; - argb = pic->argb; - - for (y = 0; y < h; ++y) { - for (x = 0; x < w; ++x) { - if ((argb[x] & 0xff000000) == 0) { - argb[x] = 0x00000000; - } - } - argb += pic->argb_stride; - } -} - -//------------------------------------------------------------------------------ -// Blend color and remove transparency info - -#define BLEND(V0, V1, ALPHA) \ - ((((V0) * (255 - (ALPHA)) + (V1) * (ALPHA)) * 0x101) >> 16) -#define BLEND_10BIT(V0, V1, ALPHA) \ - ((((V0) * (1020 - (ALPHA)) + (V1) * (ALPHA)) * 0x101) >> 18) - -void WebPBlendAlpha(WebPPicture* pic, uint32_t background_rgb) { - const int red = (background_rgb >> 16) & 0xff; - const int green = (background_rgb >> 8) & 0xff; - const int blue = (background_rgb >> 0) & 0xff; - int x, y; - if (pic == NULL) return; - if (!pic->use_argb) { - const int uv_width = (pic->width >> 1); // omit last pixel during u/v loop - const int Y0 = VP8RGBToY(red, green, blue, YUV_HALF); - // VP8RGBToU/V expects the u/v values summed over four pixels - const int U0 = VP8RGBToU(4 * red, 4 * green, 4 * blue, 4 * YUV_HALF); - const int V0 = VP8RGBToV(4 * red, 4 * green, 4 * blue, 4 * YUV_HALF); - const int has_alpha = pic->colorspace & WEBP_CSP_ALPHA_BIT; - if (!has_alpha || pic->a == NULL) return; // nothing to do - for (y = 0; y < pic->height; ++y) { - // Luma blending - uint8_t* const y_ptr = pic->y + y * pic->y_stride; - uint8_t* const a_ptr = pic->a + y * pic->a_stride; - for (x = 0; x < pic->width; ++x) { - const int alpha = a_ptr[x]; - if (alpha < 0xff) { - y_ptr[x] = BLEND(Y0, y_ptr[x], a_ptr[x]); - } - } - // Chroma blending every even line - if ((y & 1) == 0) { - uint8_t* const u = pic->u + (y >> 1) * pic->uv_stride; - uint8_t* const v = pic->v + (y >> 1) * pic->uv_stride; - uint8_t* const a_ptr2 = - (y + 1 == pic->height) ? a_ptr : a_ptr + pic->a_stride; - for (x = 0; x < uv_width; ++x) { - // Average four alpha values into a single blending weight. - // TODO(skal): might lead to visible contouring. Can we do better? - const int alpha = - a_ptr[2 * x + 0] + a_ptr[2 * x + 1] + - a_ptr2[2 * x + 0] + a_ptr2[2 * x + 1]; - u[x] = BLEND_10BIT(U0, u[x], alpha); - v[x] = BLEND_10BIT(V0, v[x], alpha); - } - if (pic->width & 1) { // rightmost pixel - const int alpha = 2 * (a_ptr[2 * x + 0] + a_ptr2[2 * x + 0]); - u[x] = BLEND_10BIT(U0, u[x], alpha); - v[x] = BLEND_10BIT(V0, v[x], alpha); - } - } - memset(a_ptr, 0xff, pic->width); - } - } else { - uint32_t* argb = pic->argb; - const uint32_t background = MakeARGB32(red, green, blue); - for (y = 0; y < pic->height; ++y) { - for (x = 0; x < pic->width; ++x) { - const int alpha = (argb[x] >> 24) & 0xff; - if (alpha != 0xff) { - if (alpha > 0) { - int r = (argb[x] >> 16) & 0xff; - int g = (argb[x] >> 8) & 0xff; - int b = (argb[x] >> 0) & 0xff; - r = BLEND(red, r, alpha); - g = BLEND(green, g, alpha); - b = BLEND(blue, b, alpha); - argb[x] = MakeARGB32(r, g, b); - } else { - argb[x] = background; - } - } - } - argb += pic->argb_stride; - } - } -} - -#undef BLEND -#undef BLEND_10BIT - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/enc/quant.c b/drivers/webp/enc/quant.c deleted file mode 100644 index 549ad26f93..0000000000 --- a/drivers/webp/enc/quant.c +++ /dev/null @@ -1,1283 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Quantization -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> -#include <math.h> -#include <stdlib.h> // for abs() - -#include "./vp8enci.h" -#include "./cost.h" - -#define DO_TRELLIS_I4 1 -#define DO_TRELLIS_I16 1 // not a huge gain, but ok at low bitrate. -#define DO_TRELLIS_UV 0 // disable trellis for UV. Risky. Not worth. -#define USE_TDISTO 1 - -#define MID_ALPHA 64 // neutral value for susceptibility -#define MIN_ALPHA 30 // lowest usable value for susceptibility -#define MAX_ALPHA 100 // higher meaningful value for susceptibility - -#define SNS_TO_DQ 0.9 // Scaling constant between the sns value and the QP - // power-law modulation. Must be strictly less than 1. - -// number of non-zero coeffs below which we consider the block very flat -// (and apply a penalty to complex predictions) -#define FLATNESS_LIMIT_I16 10 // I16 mode -#define FLATNESS_LIMIT_I4 3 // I4 mode -#define FLATNESS_LIMIT_UV 2 // UV mode -#define FLATNESS_PENALTY 140 // roughly ~1bit per block - -#define MULT_8B(a, b) (((a) * (b) + 128) >> 8) - -#define RD_DISTO_MULT 256 // distortion multiplier (equivalent of lambda) - -// #define DEBUG_BLOCK - -//------------------------------------------------------------------------------ - -#if defined(DEBUG_BLOCK) - -#include <stdio.h> -#include <stdlib.h> - -static void PrintBlockInfo(const VP8EncIterator* const it, - const VP8ModeScore* const rd) { - int i, j; - const int is_i16 = (it->mb_->type_ == 1); - const uint8_t* const y_in = it->yuv_in_ + Y_OFF_ENC; - const uint8_t* const y_out = it->yuv_out_ + Y_OFF_ENC; - const uint8_t* const uv_in = it->yuv_in_ + U_OFF_ENC; - const uint8_t* const uv_out = it->yuv_out_ + U_OFF_ENC; - printf("SOURCE / OUTPUT / ABS DELTA\n"); - for (j = 0; j < 16; ++j) { - for (i = 0; i < 16; ++i) printf("%3d ", y_in[i + j * BPS]); - printf(" "); - for (i = 0; i < 16; ++i) printf("%3d ", y_out[i + j * BPS]); - printf(" "); - for (i = 0; i < 16; ++i) { - printf("%1d ", abs(y_in[i + j * BPS] - y_out[i + j * BPS])); - } - printf("\n"); - } - printf("\n"); // newline before the U/V block - for (j = 0; j < 8; ++j) { - for (i = 0; i < 8; ++i) printf("%3d ", uv_in[i + j * BPS]); - printf(" "); - for (i = 8; i < 16; ++i) printf("%3d ", uv_in[i + j * BPS]); - printf(" "); - for (i = 0; i < 8; ++i) printf("%3d ", uv_out[i + j * BPS]); - printf(" "); - for (i = 8; i < 16; ++i) printf("%3d ", uv_out[i + j * BPS]); - printf(" "); - for (i = 0; i < 8; ++i) { - printf("%1d ", abs(uv_out[i + j * BPS] - uv_in[i + j * BPS])); - } - printf(" "); - for (i = 8; i < 16; ++i) { - printf("%1d ", abs(uv_out[i + j * BPS] - uv_in[i + j * BPS])); - } - printf("\n"); - } - printf("\nD:%d SD:%d R:%d H:%d nz:0x%x score:%d\n", - (int)rd->D, (int)rd->SD, (int)rd->R, (int)rd->H, (int)rd->nz, - (int)rd->score); - if (is_i16) { - printf("Mode: %d\n", rd->mode_i16); - printf("y_dc_levels:"); - for (i = 0; i < 16; ++i) printf("%3d ", rd->y_dc_levels[i]); - printf("\n"); - } else { - printf("Modes[16]: "); - for (i = 0; i < 16; ++i) printf("%d ", rd->modes_i4[i]); - printf("\n"); - } - printf("y_ac_levels:\n"); - for (j = 0; j < 16; ++j) { - for (i = is_i16 ? 1 : 0; i < 16; ++i) { - printf("%4d ", rd->y_ac_levels[j][i]); - } - printf("\n"); - } - printf("\n"); - printf("uv_levels (mode=%d):\n", rd->mode_uv); - for (j = 0; j < 8; ++j) { - for (i = 0; i < 16; ++i) { - printf("%4d ", rd->uv_levels[j][i]); - } - printf("\n"); - } -} - -#endif // DEBUG_BLOCK - -//------------------------------------------------------------------------------ - -static WEBP_INLINE int clip(int v, int m, int M) { - return v < m ? m : v > M ? M : v; -} - -static const uint8_t kZigzag[16] = { - 0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15 -}; - -static const uint8_t kDcTable[128] = { - 4, 5, 6, 7, 8, 9, 10, 10, - 11, 12, 13, 14, 15, 16, 17, 17, - 18, 19, 20, 20, 21, 21, 22, 22, - 23, 23, 24, 25, 25, 26, 27, 28, - 29, 30, 31, 32, 33, 34, 35, 36, - 37, 37, 38, 39, 40, 41, 42, 43, - 44, 45, 46, 46, 47, 48, 49, 50, - 51, 52, 53, 54, 55, 56, 57, 58, - 59, 60, 61, 62, 63, 64, 65, 66, - 67, 68, 69, 70, 71, 72, 73, 74, - 75, 76, 76, 77, 78, 79, 80, 81, - 82, 83, 84, 85, 86, 87, 88, 89, - 91, 93, 95, 96, 98, 100, 101, 102, - 104, 106, 108, 110, 112, 114, 116, 118, - 122, 124, 126, 128, 130, 132, 134, 136, - 138, 140, 143, 145, 148, 151, 154, 157 -}; - -static const uint16_t kAcTable[128] = { - 4, 5, 6, 7, 8, 9, 10, 11, - 12, 13, 14, 15, 16, 17, 18, 19, - 20, 21, 22, 23, 24, 25, 26, 27, - 28, 29, 30, 31, 32, 33, 34, 35, - 36, 37, 38, 39, 40, 41, 42, 43, - 44, 45, 46, 47, 48, 49, 50, 51, - 52, 53, 54, 55, 56, 57, 58, 60, - 62, 64, 66, 68, 70, 72, 74, 76, - 78, 80, 82, 84, 86, 88, 90, 92, - 94, 96, 98, 100, 102, 104, 106, 108, - 110, 112, 114, 116, 119, 122, 125, 128, - 131, 134, 137, 140, 143, 146, 149, 152, - 155, 158, 161, 164, 167, 170, 173, 177, - 181, 185, 189, 193, 197, 201, 205, 209, - 213, 217, 221, 225, 229, 234, 239, 245, - 249, 254, 259, 264, 269, 274, 279, 284 -}; - -static const uint16_t kAcTable2[128] = { - 8, 8, 9, 10, 12, 13, 15, 17, - 18, 20, 21, 23, 24, 26, 27, 29, - 31, 32, 34, 35, 37, 38, 40, 41, - 43, 44, 46, 48, 49, 51, 52, 54, - 55, 57, 58, 60, 62, 63, 65, 66, - 68, 69, 71, 72, 74, 75, 77, 79, - 80, 82, 83, 85, 86, 88, 89, 93, - 96, 99, 102, 105, 108, 111, 114, 117, - 120, 124, 127, 130, 133, 136, 139, 142, - 145, 148, 151, 155, 158, 161, 164, 167, - 170, 173, 176, 179, 184, 189, 193, 198, - 203, 207, 212, 217, 221, 226, 230, 235, - 240, 244, 249, 254, 258, 263, 268, 274, - 280, 286, 292, 299, 305, 311, 317, 323, - 330, 336, 342, 348, 354, 362, 370, 379, - 385, 393, 401, 409, 416, 424, 432, 440 -}; - -static const uint8_t kBiasMatrices[3][2] = { // [luma-ac,luma-dc,chroma][dc,ac] - { 96, 110 }, { 96, 108 }, { 110, 115 } -}; - -// Sharpening by (slightly) raising the hi-frequency coeffs. -// Hack-ish but helpful for mid-bitrate range. Use with care. -#define SHARPEN_BITS 11 // number of descaling bits for sharpening bias -static const uint8_t kFreqSharpening[16] = { - 0, 30, 60, 90, - 30, 60, 90, 90, - 60, 90, 90, 90, - 90, 90, 90, 90 -}; - -//------------------------------------------------------------------------------ -// Initialize quantization parameters in VP8Matrix - -// Returns the average quantizer -static int ExpandMatrix(VP8Matrix* const m, int type) { - int i, sum; - for (i = 0; i < 2; ++i) { - const int is_ac_coeff = (i > 0); - const int bias = kBiasMatrices[type][is_ac_coeff]; - m->iq_[i] = (1 << QFIX) / m->q_[i]; - m->bias_[i] = BIAS(bias); - // zthresh_ is the exact value such that QUANTDIV(coeff, iQ, B) is: - // * zero if coeff <= zthresh - // * non-zero if coeff > zthresh - m->zthresh_[i] = ((1 << QFIX) - 1 - m->bias_[i]) / m->iq_[i]; - } - for (i = 2; i < 16; ++i) { - m->q_[i] = m->q_[1]; - m->iq_[i] = m->iq_[1]; - m->bias_[i] = m->bias_[1]; - m->zthresh_[i] = m->zthresh_[1]; - } - for (sum = 0, i = 0; i < 16; ++i) { - if (type == 0) { // we only use sharpening for AC luma coeffs - m->sharpen_[i] = (kFreqSharpening[i] * m->q_[i]) >> SHARPEN_BITS; - } else { - m->sharpen_[i] = 0; - } - sum += m->q_[i]; - } - return (sum + 8) >> 4; -} - -static void CheckLambdaValue(int* const v) { if (*v < 1) *v = 1; } - -static void SetupMatrices(VP8Encoder* enc) { - int i; - const int tlambda_scale = - (enc->method_ >= 4) ? enc->config_->sns_strength - : 0; - const int num_segments = enc->segment_hdr_.num_segments_; - for (i = 0; i < num_segments; ++i) { - VP8SegmentInfo* const m = &enc->dqm_[i]; - const int q = m->quant_; - int q_i4, q_i16, q_uv; - m->y1_.q_[0] = kDcTable[clip(q + enc->dq_y1_dc_, 0, 127)]; - m->y1_.q_[1] = kAcTable[clip(q, 0, 127)]; - - m->y2_.q_[0] = kDcTable[ clip(q + enc->dq_y2_dc_, 0, 127)] * 2; - m->y2_.q_[1] = kAcTable2[clip(q + enc->dq_y2_ac_, 0, 127)]; - - m->uv_.q_[0] = kDcTable[clip(q + enc->dq_uv_dc_, 0, 117)]; - m->uv_.q_[1] = kAcTable[clip(q + enc->dq_uv_ac_, 0, 127)]; - - q_i4 = ExpandMatrix(&m->y1_, 0); - q_i16 = ExpandMatrix(&m->y2_, 1); - q_uv = ExpandMatrix(&m->uv_, 2); - - m->lambda_i4_ = (3 * q_i4 * q_i4) >> 7; - m->lambda_i16_ = (3 * q_i16 * q_i16); - m->lambda_uv_ = (3 * q_uv * q_uv) >> 6; - m->lambda_mode_ = (1 * q_i4 * q_i4) >> 7; - m->lambda_trellis_i4_ = (7 * q_i4 * q_i4) >> 3; - m->lambda_trellis_i16_ = (q_i16 * q_i16) >> 2; - m->lambda_trellis_uv_ = (q_uv * q_uv) << 1; - m->tlambda_ = (tlambda_scale * q_i4) >> 5; - - // none of these constants should be < 1 - CheckLambdaValue(&m->lambda_i4_); - CheckLambdaValue(&m->lambda_i16_); - CheckLambdaValue(&m->lambda_uv_); - CheckLambdaValue(&m->lambda_mode_); - CheckLambdaValue(&m->lambda_trellis_i4_); - CheckLambdaValue(&m->lambda_trellis_i16_); - CheckLambdaValue(&m->lambda_trellis_uv_); - CheckLambdaValue(&m->tlambda_); - - m->min_disto_ = 10 * m->y1_.q_[0]; // quantization-aware min disto - m->max_edge_ = 0; - - m->i4_penalty_ = 1000 * q_i4 * q_i4; - } -} - -//------------------------------------------------------------------------------ -// Initialize filtering parameters - -// Very small filter-strength values have close to no visual effect. So we can -// save a little decoding-CPU by turning filtering off for these. -#define FSTRENGTH_CUTOFF 2 - -static void SetupFilterStrength(VP8Encoder* const enc) { - int i; - // level0 is in [0..500]. Using '-f 50' as filter_strength is mid-filtering. - const int level0 = 5 * enc->config_->filter_strength; - for (i = 0; i < NUM_MB_SEGMENTS; ++i) { - VP8SegmentInfo* const m = &enc->dqm_[i]; - // We focus on the quantization of AC coeffs. - const int qstep = kAcTable[clip(m->quant_, 0, 127)] >> 2; - const int base_strength = - VP8FilterStrengthFromDelta(enc->filter_hdr_.sharpness_, qstep); - // Segments with lower complexity ('beta') will be less filtered. - const int f = base_strength * level0 / (256 + m->beta_); - m->fstrength_ = (f < FSTRENGTH_CUTOFF) ? 0 : (f > 63) ? 63 : f; - } - // We record the initial strength (mainly for the case of 1-segment only). - enc->filter_hdr_.level_ = enc->dqm_[0].fstrength_; - enc->filter_hdr_.simple_ = (enc->config_->filter_type == 0); - enc->filter_hdr_.sharpness_ = enc->config_->filter_sharpness; -} - -//------------------------------------------------------------------------------ - -// Note: if you change the values below, remember that the max range -// allowed by the syntax for DQ_UV is [-16,16]. -#define MAX_DQ_UV (6) -#define MIN_DQ_UV (-4) - -// We want to emulate jpeg-like behaviour where the expected "good" quality -// is around q=75. Internally, our "good" middle is around c=50. So we -// map accordingly using linear piece-wise function -static double QualityToCompression(double c) { - const double linear_c = (c < 0.75) ? c * (2. / 3.) : 2. * c - 1.; - // The file size roughly scales as pow(quantizer, 3.). Actually, the - // exponent is somewhere between 2.8 and 3.2, but we're mostly interested - // in the mid-quant range. So we scale the compressibility inversely to - // this power-law: quant ~= compression ^ 1/3. This law holds well for - // low quant. Finer modeling for high-quant would make use of kAcTable[] - // more explicitly. - const double v = pow(linear_c, 1 / 3.); - return v; -} - -static double QualityToJPEGCompression(double c, double alpha) { - // We map the complexity 'alpha' and quality setting 'c' to a compression - // exponent empirically matched to the compression curve of libjpeg6b. - // On average, the WebP output size will be roughly similar to that of a - // JPEG file compressed with same quality factor. - const double amin = 0.30; - const double amax = 0.85; - const double exp_min = 0.4; - const double exp_max = 0.9; - const double slope = (exp_min - exp_max) / (amax - amin); - // Linearly interpolate 'expn' from exp_min to exp_max - // in the [amin, amax] range. - const double expn = (alpha > amax) ? exp_min - : (alpha < amin) ? exp_max - : exp_max + slope * (alpha - amin); - const double v = pow(c, expn); - return v; -} - -static int SegmentsAreEquivalent(const VP8SegmentInfo* const S1, - const VP8SegmentInfo* const S2) { - return (S1->quant_ == S2->quant_) && (S1->fstrength_ == S2->fstrength_); -} - -static void SimplifySegments(VP8Encoder* const enc) { - int map[NUM_MB_SEGMENTS] = { 0, 1, 2, 3 }; - // 'num_segments_' is previously validated and <= NUM_MB_SEGMENTS, but an - // explicit check is needed to avoid a spurious warning about 'i' exceeding - // array bounds of 'dqm_' with some compilers (noticed with gcc-4.9). - const int num_segments = (enc->segment_hdr_.num_segments_ < NUM_MB_SEGMENTS) - ? enc->segment_hdr_.num_segments_ - : NUM_MB_SEGMENTS; - int num_final_segments = 1; - int s1, s2; - for (s1 = 1; s1 < num_segments; ++s1) { // find similar segments - const VP8SegmentInfo* const S1 = &enc->dqm_[s1]; - int found = 0; - // check if we already have similar segment - for (s2 = 0; s2 < num_final_segments; ++s2) { - const VP8SegmentInfo* const S2 = &enc->dqm_[s2]; - if (SegmentsAreEquivalent(S1, S2)) { - found = 1; - break; - } - } - map[s1] = s2; - if (!found) { - if (num_final_segments != s1) { - enc->dqm_[num_final_segments] = enc->dqm_[s1]; - } - ++num_final_segments; - } - } - if (num_final_segments < num_segments) { // Remap - int i = enc->mb_w_ * enc->mb_h_; - while (i-- > 0) enc->mb_info_[i].segment_ = map[enc->mb_info_[i].segment_]; - enc->segment_hdr_.num_segments_ = num_final_segments; - // Replicate the trailing segment infos (it's mostly cosmetics) - for (i = num_final_segments; i < num_segments; ++i) { - enc->dqm_[i] = enc->dqm_[num_final_segments - 1]; - } - } -} - -void VP8SetSegmentParams(VP8Encoder* const enc, float quality) { - int i; - int dq_uv_ac, dq_uv_dc; - const int num_segments = enc->segment_hdr_.num_segments_; - const double amp = SNS_TO_DQ * enc->config_->sns_strength / 100. / 128.; - const double Q = quality / 100.; - const double c_base = enc->config_->emulate_jpeg_size ? - QualityToJPEGCompression(Q, enc->alpha_ / 255.) : - QualityToCompression(Q); - for (i = 0; i < num_segments; ++i) { - // We modulate the base coefficient to accommodate for the quantization - // susceptibility and allow denser segments to be quantized more. - const double expn = 1. - amp * enc->dqm_[i].alpha_; - const double c = pow(c_base, expn); - const int q = (int)(127. * (1. - c)); - assert(expn > 0.); - enc->dqm_[i].quant_ = clip(q, 0, 127); - } - - // purely indicative in the bitstream (except for the 1-segment case) - enc->base_quant_ = enc->dqm_[0].quant_; - - // fill-in values for the unused segments (required by the syntax) - for (i = num_segments; i < NUM_MB_SEGMENTS; ++i) { - enc->dqm_[i].quant_ = enc->base_quant_; - } - - // uv_alpha_ is normally spread around ~60. The useful range is - // typically ~30 (quite bad) to ~100 (ok to decimate UV more). - // We map it to the safe maximal range of MAX/MIN_DQ_UV for dq_uv. - dq_uv_ac = (enc->uv_alpha_ - MID_ALPHA) * (MAX_DQ_UV - MIN_DQ_UV) - / (MAX_ALPHA - MIN_ALPHA); - // we rescale by the user-defined strength of adaptation - dq_uv_ac = dq_uv_ac * enc->config_->sns_strength / 100; - // and make it safe. - dq_uv_ac = clip(dq_uv_ac, MIN_DQ_UV, MAX_DQ_UV); - // We also boost the dc-uv-quant a little, based on sns-strength, since - // U/V channels are quite more reactive to high quants (flat DC-blocks - // tend to appear, and are unpleasant). - dq_uv_dc = -4 * enc->config_->sns_strength / 100; - dq_uv_dc = clip(dq_uv_dc, -15, 15); // 4bit-signed max allowed - - enc->dq_y1_dc_ = 0; // TODO(skal): dq-lum - enc->dq_y2_dc_ = 0; - enc->dq_y2_ac_ = 0; - enc->dq_uv_dc_ = dq_uv_dc; - enc->dq_uv_ac_ = dq_uv_ac; - - SetupFilterStrength(enc); // initialize segments' filtering, eventually - - if (num_segments > 1) SimplifySegments(enc); - - SetupMatrices(enc); // finalize quantization matrices -} - -//------------------------------------------------------------------------------ -// Form the predictions in cache - -// Must be ordered using {DC_PRED, TM_PRED, V_PRED, H_PRED} as index -const int VP8I16ModeOffsets[4] = { I16DC16, I16TM16, I16VE16, I16HE16 }; -const int VP8UVModeOffsets[4] = { C8DC8, C8TM8, C8VE8, C8HE8 }; - -// Must be indexed using {B_DC_PRED -> B_HU_PRED} as index -const int VP8I4ModeOffsets[NUM_BMODES] = { - I4DC4, I4TM4, I4VE4, I4HE4, I4RD4, I4VR4, I4LD4, I4VL4, I4HD4, I4HU4 -}; - -void VP8MakeLuma16Preds(const VP8EncIterator* const it) { - const uint8_t* const left = it->x_ ? it->y_left_ : NULL; - const uint8_t* const top = it->y_ ? it->y_top_ : NULL; - VP8EncPredLuma16(it->yuv_p_, left, top); -} - -void VP8MakeChroma8Preds(const VP8EncIterator* const it) { - const uint8_t* const left = it->x_ ? it->u_left_ : NULL; - const uint8_t* const top = it->y_ ? it->uv_top_ : NULL; - VP8EncPredChroma8(it->yuv_p_, left, top); -} - -void VP8MakeIntra4Preds(const VP8EncIterator* const it) { - VP8EncPredLuma4(it->yuv_p_, it->i4_top_); -} - -//------------------------------------------------------------------------------ -// Quantize - -// Layout: -// +----+----+ -// |YYYY|UUVV| 0 -// |YYYY|UUVV| 4 -// |YYYY|....| 8 -// |YYYY|....| 12 -// +----+----+ - -const int VP8Scan[16] = { // Luma - 0 + 0 * BPS, 4 + 0 * BPS, 8 + 0 * BPS, 12 + 0 * BPS, - 0 + 4 * BPS, 4 + 4 * BPS, 8 + 4 * BPS, 12 + 4 * BPS, - 0 + 8 * BPS, 4 + 8 * BPS, 8 + 8 * BPS, 12 + 8 * BPS, - 0 + 12 * BPS, 4 + 12 * BPS, 8 + 12 * BPS, 12 + 12 * BPS, -}; - -static const int VP8ScanUV[4 + 4] = { - 0 + 0 * BPS, 4 + 0 * BPS, 0 + 4 * BPS, 4 + 4 * BPS, // U - 8 + 0 * BPS, 12 + 0 * BPS, 8 + 4 * BPS, 12 + 4 * BPS // V -}; - -//------------------------------------------------------------------------------ -// Distortion measurement - -static const uint16_t kWeightY[16] = { - 38, 32, 20, 9, 32, 28, 17, 7, 20, 17, 10, 4, 9, 7, 4, 2 -}; - -static const uint16_t kWeightTrellis[16] = { -#if USE_TDISTO == 0 - 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16 -#else - 30, 27, 19, 11, - 27, 24, 17, 10, - 19, 17, 12, 8, - 11, 10, 8, 6 -#endif -}; - -// Init/Copy the common fields in score. -static void InitScore(VP8ModeScore* const rd) { - rd->D = 0; - rd->SD = 0; - rd->R = 0; - rd->H = 0; - rd->nz = 0; - rd->score = MAX_COST; -} - -static void CopyScore(VP8ModeScore* const dst, const VP8ModeScore* const src) { - dst->D = src->D; - dst->SD = src->SD; - dst->R = src->R; - dst->H = src->H; - dst->nz = src->nz; // note that nz is not accumulated, but just copied. - dst->score = src->score; -} - -static void AddScore(VP8ModeScore* const dst, const VP8ModeScore* const src) { - dst->D += src->D; - dst->SD += src->SD; - dst->R += src->R; - dst->H += src->H; - dst->nz |= src->nz; // here, new nz bits are accumulated. - dst->score += src->score; -} - -//------------------------------------------------------------------------------ -// Performs trellis-optimized quantization. - -// Trellis node -typedef struct { - int8_t prev; // best previous node - int8_t sign; // sign of coeff_i - int16_t level; // level -} Node; - -// Score state -typedef struct { - score_t score; // partial RD score - const uint16_t* costs; // shortcut to cost tables -} ScoreState; - -// If a coefficient was quantized to a value Q (using a neutral bias), -// we test all alternate possibilities between [Q-MIN_DELTA, Q+MAX_DELTA] -// We don't test negative values though. -#define MIN_DELTA 0 // how much lower level to try -#define MAX_DELTA 1 // how much higher -#define NUM_NODES (MIN_DELTA + 1 + MAX_DELTA) -#define NODE(n, l) (nodes[(n)][(l) + MIN_DELTA]) -#define SCORE_STATE(n, l) (score_states[n][(l) + MIN_DELTA]) - -static WEBP_INLINE void SetRDScore(int lambda, VP8ModeScore* const rd) { - rd->score = (rd->R + rd->H) * lambda + RD_DISTO_MULT * (rd->D + rd->SD); -} - -static WEBP_INLINE score_t RDScoreTrellis(int lambda, score_t rate, - score_t distortion) { - return rate * lambda + RD_DISTO_MULT * distortion; -} - -static int TrellisQuantizeBlock(const VP8Encoder* const enc, - int16_t in[16], int16_t out[16], - int ctx0, int coeff_type, - const VP8Matrix* const mtx, - int lambda) { - const ProbaArray* const probas = enc->proba_.coeffs_[coeff_type]; - CostArrayPtr const costs = - (CostArrayPtr)enc->proba_.remapped_costs_[coeff_type]; - const int first = (coeff_type == 0) ? 1 : 0; - Node nodes[16][NUM_NODES]; - ScoreState score_states[2][NUM_NODES]; - ScoreState* ss_cur = &SCORE_STATE(0, MIN_DELTA); - ScoreState* ss_prev = &SCORE_STATE(1, MIN_DELTA); - int best_path[3] = {-1, -1, -1}; // store best-last/best-level/best-previous - score_t best_score; - int n, m, p, last; - - { - score_t cost; - const int thresh = mtx->q_[1] * mtx->q_[1] / 4; - const int last_proba = probas[VP8EncBands[first]][ctx0][0]; - - // compute the position of the last interesting coefficient - last = first - 1; - for (n = 15; n >= first; --n) { - const int j = kZigzag[n]; - const int err = in[j] * in[j]; - if (err > thresh) { - last = n; - break; - } - } - // we don't need to go inspect up to n = 16 coeffs. We can just go up - // to last + 1 (inclusive) without losing much. - if (last < 15) ++last; - - // compute 'skip' score. This is the max score one can do. - cost = VP8BitCost(0, last_proba); - best_score = RDScoreTrellis(lambda, cost, 0); - - // initialize source node. - for (m = -MIN_DELTA; m <= MAX_DELTA; ++m) { - const score_t rate = (ctx0 == 0) ? VP8BitCost(1, last_proba) : 0; - ss_cur[m].score = RDScoreTrellis(lambda, rate, 0); - ss_cur[m].costs = costs[first][ctx0]; - } - } - - // traverse trellis. - for (n = first; n <= last; ++n) { - const int j = kZigzag[n]; - const uint32_t Q = mtx->q_[j]; - const uint32_t iQ = mtx->iq_[j]; - const uint32_t B = BIAS(0x00); // neutral bias - // note: it's important to take sign of the _original_ coeff, - // so we don't have to consider level < 0 afterward. - const int sign = (in[j] < 0); - const uint32_t coeff0 = (sign ? -in[j] : in[j]) + mtx->sharpen_[j]; - int level0 = QUANTDIV(coeff0, iQ, B); - if (level0 > MAX_LEVEL) level0 = MAX_LEVEL; - - { // Swap current and previous score states - ScoreState* const tmp = ss_cur; - ss_cur = ss_prev; - ss_prev = tmp; - } - - // test all alternate level values around level0. - for (m = -MIN_DELTA; m <= MAX_DELTA; ++m) { - Node* const cur = &NODE(n, m); - int level = level0 + m; - const int ctx = (level > 2) ? 2 : level; - const int band = VP8EncBands[n + 1]; - score_t base_score, last_pos_score; - score_t best_cur_score = MAX_COST; - int best_prev = 0; // default, in case - - ss_cur[m].score = MAX_COST; - ss_cur[m].costs = costs[n + 1][ctx]; - if (level > MAX_LEVEL || level < 0) { // node is dead? - continue; - } - - // Compute extra rate cost if last coeff's position is < 15 - { - const score_t last_pos_cost = - (n < 15) ? VP8BitCost(0, probas[band][ctx][0]) : 0; - last_pos_score = RDScoreTrellis(lambda, last_pos_cost, 0); - } - - { - // Compute delta_error = how much coding this level will - // subtract to max_error as distortion. - // Here, distortion = sum of (|coeff_i| - level_i * Q_i)^2 - const int new_error = coeff0 - level * Q; - const int delta_error = - kWeightTrellis[j] * (new_error * new_error - coeff0 * coeff0); - base_score = RDScoreTrellis(lambda, 0, delta_error); - } - - // Inspect all possible non-dead predecessors. Retain only the best one. - for (p = -MIN_DELTA; p <= MAX_DELTA; ++p) { - // Dead nodes (with ss_prev[p].score >= MAX_COST) are automatically - // eliminated since their score can't be better than the current best. - const score_t cost = VP8LevelCost(ss_prev[p].costs, level); - // Examine node assuming it's a non-terminal one. - const score_t score = - base_score + ss_prev[p].score + RDScoreTrellis(lambda, cost, 0); - if (score < best_cur_score) { - best_cur_score = score; - best_prev = p; - } - } - // Store best finding in current node. - cur->sign = sign; - cur->level = level; - cur->prev = best_prev; - ss_cur[m].score = best_cur_score; - - // Now, record best terminal node (and thus best entry in the graph). - if (level != 0) { - const score_t score = best_cur_score + last_pos_score; - if (score < best_score) { - best_score = score; - best_path[0] = n; // best eob position - best_path[1] = m; // best node index - best_path[2] = best_prev; // best predecessor - } - } - } - } - - // Fresh start - memset(in + first, 0, (16 - first) * sizeof(*in)); - memset(out + first, 0, (16 - first) * sizeof(*out)); - if (best_path[0] == -1) { - return 0; // skip! - } - - { - // Unwind the best path. - // Note: best-prev on terminal node is not necessarily equal to the - // best_prev for non-terminal. So we patch best_path[2] in. - int nz = 0; - int best_node = best_path[1]; - n = best_path[0]; - NODE(n, best_node).prev = best_path[2]; // force best-prev for terminal - - for (; n >= first; --n) { - const Node* const node = &NODE(n, best_node); - const int j = kZigzag[n]; - out[n] = node->sign ? -node->level : node->level; - nz |= node->level; - in[j] = out[n] * mtx->q_[j]; - best_node = node->prev; - } - return (nz != 0); - } -} - -#undef NODE - -//------------------------------------------------------------------------------ -// Performs: difference, transform, quantize, back-transform, add -// all at once. Output is the reconstructed block in *yuv_out, and the -// quantized levels in *levels. - -static int ReconstructIntra16(VP8EncIterator* const it, - VP8ModeScore* const rd, - uint8_t* const yuv_out, - int mode) { - const VP8Encoder* const enc = it->enc_; - const uint8_t* const ref = it->yuv_p_ + VP8I16ModeOffsets[mode]; - const uint8_t* const src = it->yuv_in_ + Y_OFF_ENC; - const VP8SegmentInfo* const dqm = &enc->dqm_[it->mb_->segment_]; - int nz = 0; - int n; - int16_t tmp[16][16], dc_tmp[16]; - - for (n = 0; n < 16; n += 2) { - VP8FTransform2(src + VP8Scan[n], ref + VP8Scan[n], tmp[n]); - } - VP8FTransformWHT(tmp[0], dc_tmp); - nz |= VP8EncQuantizeBlockWHT(dc_tmp, rd->y_dc_levels, &dqm->y2_) << 24; - - if (DO_TRELLIS_I16 && it->do_trellis_) { - int x, y; - VP8IteratorNzToBytes(it); - for (y = 0, n = 0; y < 4; ++y) { - for (x = 0; x < 4; ++x, ++n) { - const int ctx = it->top_nz_[x] + it->left_nz_[y]; - const int non_zero = - TrellisQuantizeBlock(enc, tmp[n], rd->y_ac_levels[n], ctx, 0, - &dqm->y1_, dqm->lambda_trellis_i16_); - it->top_nz_[x] = it->left_nz_[y] = non_zero; - rd->y_ac_levels[n][0] = 0; - nz |= non_zero << n; - } - } - } else { - for (n = 0; n < 16; n += 2) { - // Zero-out the first coeff, so that: a) nz is correct below, and - // b) finding 'last' non-zero coeffs in SetResidualCoeffs() is simplified. - tmp[n][0] = tmp[n + 1][0] = 0; - nz |= VP8EncQuantize2Blocks(tmp[n], rd->y_ac_levels[n], &dqm->y1_) << n; - assert(rd->y_ac_levels[n + 0][0] == 0); - assert(rd->y_ac_levels[n + 1][0] == 0); - } - } - - // Transform back - VP8TransformWHT(dc_tmp, tmp[0]); - for (n = 0; n < 16; n += 2) { - VP8ITransform(ref + VP8Scan[n], tmp[n], yuv_out + VP8Scan[n], 1); - } - - return nz; -} - -static int ReconstructIntra4(VP8EncIterator* const it, - int16_t levels[16], - const uint8_t* const src, - uint8_t* const yuv_out, - int mode) { - const VP8Encoder* const enc = it->enc_; - const uint8_t* const ref = it->yuv_p_ + VP8I4ModeOffsets[mode]; - const VP8SegmentInfo* const dqm = &enc->dqm_[it->mb_->segment_]; - int nz = 0; - int16_t tmp[16]; - - VP8FTransform(src, ref, tmp); - if (DO_TRELLIS_I4 && it->do_trellis_) { - const int x = it->i4_ & 3, y = it->i4_ >> 2; - const int ctx = it->top_nz_[x] + it->left_nz_[y]; - nz = TrellisQuantizeBlock(enc, tmp, levels, ctx, 3, &dqm->y1_, - dqm->lambda_trellis_i4_); - } else { - nz = VP8EncQuantizeBlock(tmp, levels, &dqm->y1_); - } - VP8ITransform(ref, tmp, yuv_out, 0); - return nz; -} - -static int ReconstructUV(VP8EncIterator* const it, VP8ModeScore* const rd, - uint8_t* const yuv_out, int mode) { - const VP8Encoder* const enc = it->enc_; - const uint8_t* const ref = it->yuv_p_ + VP8UVModeOffsets[mode]; - const uint8_t* const src = it->yuv_in_ + U_OFF_ENC; - const VP8SegmentInfo* const dqm = &enc->dqm_[it->mb_->segment_]; - int nz = 0; - int n; - int16_t tmp[8][16]; - - for (n = 0; n < 8; n += 2) { - VP8FTransform2(src + VP8ScanUV[n], ref + VP8ScanUV[n], tmp[n]); - } - if (DO_TRELLIS_UV && it->do_trellis_) { - int ch, x, y; - for (ch = 0, n = 0; ch <= 2; ch += 2) { - for (y = 0; y < 2; ++y) { - for (x = 0; x < 2; ++x, ++n) { - const int ctx = it->top_nz_[4 + ch + x] + it->left_nz_[4 + ch + y]; - const int non_zero = - TrellisQuantizeBlock(enc, tmp[n], rd->uv_levels[n], ctx, 2, - &dqm->uv_, dqm->lambda_trellis_uv_); - it->top_nz_[4 + ch + x] = it->left_nz_[4 + ch + y] = non_zero; - nz |= non_zero << n; - } - } - } - } else { - for (n = 0; n < 8; n += 2) { - nz |= VP8EncQuantize2Blocks(tmp[n], rd->uv_levels[n], &dqm->uv_) << n; - } - } - - for (n = 0; n < 8; n += 2) { - VP8ITransform(ref + VP8ScanUV[n], tmp[n], yuv_out + VP8ScanUV[n], 1); - } - return (nz << 16); -} - -//------------------------------------------------------------------------------ -// RD-opt decision. Reconstruct each modes, evalue distortion and bit-cost. -// Pick the mode is lower RD-cost = Rate + lambda * Distortion. - -static void StoreMaxDelta(VP8SegmentInfo* const dqm, const int16_t DCs[16]) { - // We look at the first three AC coefficients to determine what is the average - // delta between each sub-4x4 block. - const int v0 = abs(DCs[1]); - const int v1 = abs(DCs[4]); - const int v2 = abs(DCs[5]); - int max_v = (v0 > v1) ? v1 : v0; - max_v = (v2 > max_v) ? v2 : max_v; - if (max_v > dqm->max_edge_) dqm->max_edge_ = max_v; -} - -static void SwapModeScore(VP8ModeScore** a, VP8ModeScore** b) { - VP8ModeScore* const tmp = *a; - *a = *b; - *b = tmp; -} - -static void SwapPtr(uint8_t** a, uint8_t** b) { - uint8_t* const tmp = *a; - *a = *b; - *b = tmp; -} - -static void SwapOut(VP8EncIterator* const it) { - SwapPtr(&it->yuv_out_, &it->yuv_out2_); -} - -static score_t IsFlat(const int16_t* levels, int num_blocks, score_t thresh) { - score_t score = 0; - while (num_blocks-- > 0) { // TODO(skal): refine positional scoring? - int i; - for (i = 1; i < 16; ++i) { // omit DC, we're only interested in AC - score += (levels[i] != 0); - if (score > thresh) return 0; - } - levels += 16; - } - return 1; -} - -static void PickBestIntra16(VP8EncIterator* const it, VP8ModeScore* rd) { - const int kNumBlocks = 16; - VP8SegmentInfo* const dqm = &it->enc_->dqm_[it->mb_->segment_]; - const int lambda = dqm->lambda_i16_; - const int tlambda = dqm->tlambda_; - const uint8_t* const src = it->yuv_in_ + Y_OFF_ENC; - VP8ModeScore rd_tmp; - VP8ModeScore* rd_cur = &rd_tmp; - VP8ModeScore* rd_best = rd; - int mode; - - rd->mode_i16 = -1; - for (mode = 0; mode < NUM_PRED_MODES; ++mode) { - uint8_t* const tmp_dst = it->yuv_out2_ + Y_OFF_ENC; // scratch buffer - rd_cur->mode_i16 = mode; - - // Reconstruct - rd_cur->nz = ReconstructIntra16(it, rd_cur, tmp_dst, mode); - - // Measure RD-score - rd_cur->D = VP8SSE16x16(src, tmp_dst); - rd_cur->SD = - tlambda ? MULT_8B(tlambda, VP8TDisto16x16(src, tmp_dst, kWeightY)) : 0; - rd_cur->H = VP8FixedCostsI16[mode]; - rd_cur->R = VP8GetCostLuma16(it, rd_cur); - if (mode > 0 && - IsFlat(rd_cur->y_ac_levels[0], kNumBlocks, FLATNESS_LIMIT_I16)) { - // penalty to avoid flat area to be mispredicted by complex mode - rd_cur->R += FLATNESS_PENALTY * kNumBlocks; - } - - // Since we always examine Intra16 first, we can overwrite *rd directly. - SetRDScore(lambda, rd_cur); - if (mode == 0 || rd_cur->score < rd_best->score) { - SwapModeScore(&rd_cur, &rd_best); - SwapOut(it); - } - } - if (rd_best != rd) { - memcpy(rd, rd_best, sizeof(*rd)); - } - SetRDScore(dqm->lambda_mode_, rd); // finalize score for mode decision. - VP8SetIntra16Mode(it, rd->mode_i16); - - // we have a blocky macroblock (only DCs are non-zero) with fairly high - // distortion, record max delta so we can later adjust the minimal filtering - // strength needed to smooth these blocks out. - if ((rd->nz & 0xffff) == 0 && rd->D > dqm->min_disto_) { - StoreMaxDelta(dqm, rd->y_dc_levels); - } -} - -//------------------------------------------------------------------------------ - -// return the cost array corresponding to the surrounding prediction modes. -static const uint16_t* GetCostModeI4(VP8EncIterator* const it, - const uint8_t modes[16]) { - const int preds_w = it->enc_->preds_w_; - const int x = (it->i4_ & 3), y = it->i4_ >> 2; - const int left = (x == 0) ? it->preds_[y * preds_w - 1] : modes[it->i4_ - 1]; - const int top = (y == 0) ? it->preds_[-preds_w + x] : modes[it->i4_ - 4]; - return VP8FixedCostsI4[top][left]; -} - -static int PickBestIntra4(VP8EncIterator* const it, VP8ModeScore* const rd) { - const VP8Encoder* const enc = it->enc_; - const VP8SegmentInfo* const dqm = &enc->dqm_[it->mb_->segment_]; - const int lambda = dqm->lambda_i4_; - const int tlambda = dqm->tlambda_; - const uint8_t* const src0 = it->yuv_in_ + Y_OFF_ENC; - uint8_t* const best_blocks = it->yuv_out2_ + Y_OFF_ENC; - int total_header_bits = 0; - VP8ModeScore rd_best; - - if (enc->max_i4_header_bits_ == 0) { - return 0; - } - - InitScore(&rd_best); - rd_best.H = 211; // '211' is the value of VP8BitCost(0, 145) - SetRDScore(dqm->lambda_mode_, &rd_best); - VP8IteratorStartI4(it); - do { - const int kNumBlocks = 1; - VP8ModeScore rd_i4; - int mode; - int best_mode = -1; - const uint8_t* const src = src0 + VP8Scan[it->i4_]; - const uint16_t* const mode_costs = GetCostModeI4(it, rd->modes_i4); - uint8_t* best_block = best_blocks + VP8Scan[it->i4_]; - uint8_t* tmp_dst = it->yuv_p_ + I4TMP; // scratch buffer. - - InitScore(&rd_i4); - VP8MakeIntra4Preds(it); - for (mode = 0; mode < NUM_BMODES; ++mode) { - VP8ModeScore rd_tmp; - int16_t tmp_levels[16]; - - // Reconstruct - rd_tmp.nz = - ReconstructIntra4(it, tmp_levels, src, tmp_dst, mode) << it->i4_; - - // Compute RD-score - rd_tmp.D = VP8SSE4x4(src, tmp_dst); - rd_tmp.SD = - tlambda ? MULT_8B(tlambda, VP8TDisto4x4(src, tmp_dst, kWeightY)) - : 0; - rd_tmp.H = mode_costs[mode]; - - // Add flatness penalty - if (mode > 0 && IsFlat(tmp_levels, kNumBlocks, FLATNESS_LIMIT_I4)) { - rd_tmp.R = FLATNESS_PENALTY * kNumBlocks; - } else { - rd_tmp.R = 0; - } - - // early-out check - SetRDScore(lambda, &rd_tmp); - if (best_mode >= 0 && rd_tmp.score >= rd_i4.score) continue; - - // finish computing score - rd_tmp.R += VP8GetCostLuma4(it, tmp_levels); - SetRDScore(lambda, &rd_tmp); - - if (best_mode < 0 || rd_tmp.score < rd_i4.score) { - CopyScore(&rd_i4, &rd_tmp); - best_mode = mode; - SwapPtr(&tmp_dst, &best_block); - memcpy(rd_best.y_ac_levels[it->i4_], tmp_levels, - sizeof(rd_best.y_ac_levels[it->i4_])); - } - } - SetRDScore(dqm->lambda_mode_, &rd_i4); - AddScore(&rd_best, &rd_i4); - if (rd_best.score >= rd->score) { - return 0; - } - total_header_bits += (int)rd_i4.H; // <- equal to mode_costs[best_mode]; - if (total_header_bits > enc->max_i4_header_bits_) { - return 0; - } - // Copy selected samples if not in the right place already. - if (best_block != best_blocks + VP8Scan[it->i4_]) { - VP8Copy4x4(best_block, best_blocks + VP8Scan[it->i4_]); - } - rd->modes_i4[it->i4_] = best_mode; - it->top_nz_[it->i4_ & 3] = it->left_nz_[it->i4_ >> 2] = (rd_i4.nz ? 1 : 0); - } while (VP8IteratorRotateI4(it, best_blocks)); - - // finalize state - CopyScore(rd, &rd_best); - VP8SetIntra4Mode(it, rd->modes_i4); - SwapOut(it); - memcpy(rd->y_ac_levels, rd_best.y_ac_levels, sizeof(rd->y_ac_levels)); - return 1; // select intra4x4 over intra16x16 -} - -//------------------------------------------------------------------------------ - -static void PickBestUV(VP8EncIterator* const it, VP8ModeScore* const rd) { - const int kNumBlocks = 8; - const VP8SegmentInfo* const dqm = &it->enc_->dqm_[it->mb_->segment_]; - const int lambda = dqm->lambda_uv_; - const uint8_t* const src = it->yuv_in_ + U_OFF_ENC; - uint8_t* tmp_dst = it->yuv_out2_ + U_OFF_ENC; // scratch buffer - uint8_t* dst0 = it->yuv_out_ + U_OFF_ENC; - uint8_t* dst = dst0; - VP8ModeScore rd_best; - int mode; - - rd->mode_uv = -1; - InitScore(&rd_best); - for (mode = 0; mode < NUM_PRED_MODES; ++mode) { - VP8ModeScore rd_uv; - - // Reconstruct - rd_uv.nz = ReconstructUV(it, &rd_uv, tmp_dst, mode); - - // Compute RD-score - rd_uv.D = VP8SSE16x8(src, tmp_dst); - rd_uv.SD = 0; // not calling TDisto here: it tends to flatten areas. - rd_uv.H = VP8FixedCostsUV[mode]; - rd_uv.R = VP8GetCostUV(it, &rd_uv); - if (mode > 0 && IsFlat(rd_uv.uv_levels[0], kNumBlocks, FLATNESS_LIMIT_UV)) { - rd_uv.R += FLATNESS_PENALTY * kNumBlocks; - } - - SetRDScore(lambda, &rd_uv); - if (mode == 0 || rd_uv.score < rd_best.score) { - CopyScore(&rd_best, &rd_uv); - rd->mode_uv = mode; - memcpy(rd->uv_levels, rd_uv.uv_levels, sizeof(rd->uv_levels)); - SwapPtr(&dst, &tmp_dst); - } - } - VP8SetIntraUVMode(it, rd->mode_uv); - AddScore(rd, &rd_best); - if (dst != dst0) { // copy 16x8 block if needed - VP8Copy16x8(dst, dst0); - } -} - -//------------------------------------------------------------------------------ -// Final reconstruction and quantization. - -static void SimpleQuantize(VP8EncIterator* const it, VP8ModeScore* const rd) { - const VP8Encoder* const enc = it->enc_; - const int is_i16 = (it->mb_->type_ == 1); - int nz = 0; - - if (is_i16) { - nz = ReconstructIntra16(it, rd, it->yuv_out_ + Y_OFF_ENC, it->preds_[0]); - } else { - VP8IteratorStartI4(it); - do { - const int mode = - it->preds_[(it->i4_ & 3) + (it->i4_ >> 2) * enc->preds_w_]; - const uint8_t* const src = it->yuv_in_ + Y_OFF_ENC + VP8Scan[it->i4_]; - uint8_t* const dst = it->yuv_out_ + Y_OFF_ENC + VP8Scan[it->i4_]; - VP8MakeIntra4Preds(it); - nz |= ReconstructIntra4(it, rd->y_ac_levels[it->i4_], - src, dst, mode) << it->i4_; - } while (VP8IteratorRotateI4(it, it->yuv_out_ + Y_OFF_ENC)); - } - - nz |= ReconstructUV(it, rd, it->yuv_out_ + U_OFF_ENC, it->mb_->uv_mode_); - rd->nz = nz; -} - -// Refine intra16/intra4 sub-modes based on distortion only (not rate). -static void RefineUsingDistortion(VP8EncIterator* const it, - int try_both_modes, int refine_uv_mode, - VP8ModeScore* const rd) { - score_t best_score = MAX_COST; - int nz = 0; - int mode; - int is_i16 = try_both_modes || (it->mb_->type_ == 1); - - const VP8SegmentInfo* const dqm = &it->enc_->dqm_[it->mb_->segment_]; - // Some empiric constants, of approximate order of magnitude. - const int lambda_d_i16 = 106; - const int lambda_d_i4 = 11; - const int lambda_d_uv = 120; - score_t score_i4 = dqm->i4_penalty_; - score_t i4_bit_sum = 0; - const score_t bit_limit = it->enc_->mb_header_limit_; - - if (is_i16) { // First, evaluate Intra16 distortion - int best_mode = -1; - const uint8_t* const src = it->yuv_in_ + Y_OFF_ENC; - for (mode = 0; mode < NUM_PRED_MODES; ++mode) { - const uint8_t* const ref = it->yuv_p_ + VP8I16ModeOffsets[mode]; - const score_t score = VP8SSE16x16(src, ref) * RD_DISTO_MULT - + VP8FixedCostsI16[mode] * lambda_d_i16; - if (mode > 0 && VP8FixedCostsI16[mode] > bit_limit) { - continue; - } - if (score < best_score) { - best_mode = mode; - best_score = score; - } - } - VP8SetIntra16Mode(it, best_mode); - // we'll reconstruct later, if i16 mode actually gets selected - } - - // Next, evaluate Intra4 - if (try_both_modes || !is_i16) { - // We don't evaluate the rate here, but just account for it through a - // constant penalty (i4 mode usually needs more bits compared to i16). - is_i16 = 0; - VP8IteratorStartI4(it); - do { - int best_i4_mode = -1; - score_t best_i4_score = MAX_COST; - const uint8_t* const src = it->yuv_in_ + Y_OFF_ENC + VP8Scan[it->i4_]; - const uint16_t* const mode_costs = GetCostModeI4(it, rd->modes_i4); - - VP8MakeIntra4Preds(it); - for (mode = 0; mode < NUM_BMODES; ++mode) { - const uint8_t* const ref = it->yuv_p_ + VP8I4ModeOffsets[mode]; - const score_t score = VP8SSE4x4(src, ref) * RD_DISTO_MULT - + mode_costs[mode] * lambda_d_i4; - if (score < best_i4_score) { - best_i4_mode = mode; - best_i4_score = score; - } - } - i4_bit_sum += mode_costs[best_i4_mode]; - rd->modes_i4[it->i4_] = best_i4_mode; - score_i4 += best_i4_score; - if (score_i4 >= best_score || i4_bit_sum > bit_limit) { - // Intra4 won't be better than Intra16. Bail out and pick Intra16. - is_i16 = 1; - break; - } else { // reconstruct partial block inside yuv_out2_ buffer - uint8_t* const tmp_dst = it->yuv_out2_ + Y_OFF_ENC + VP8Scan[it->i4_]; - nz |= ReconstructIntra4(it, rd->y_ac_levels[it->i4_], - src, tmp_dst, best_i4_mode) << it->i4_; - } - } while (VP8IteratorRotateI4(it, it->yuv_out2_ + Y_OFF_ENC)); - } - - // Final reconstruction, depending on which mode is selected. - if (!is_i16) { - VP8SetIntra4Mode(it, rd->modes_i4); - SwapOut(it); - best_score = score_i4; - } else { - nz = ReconstructIntra16(it, rd, it->yuv_out_ + Y_OFF_ENC, it->preds_[0]); - } - - // ... and UV! - if (refine_uv_mode) { - int best_mode = -1; - score_t best_uv_score = MAX_COST; - const uint8_t* const src = it->yuv_in_ + U_OFF_ENC; - for (mode = 0; mode < NUM_PRED_MODES; ++mode) { - const uint8_t* const ref = it->yuv_p_ + VP8UVModeOffsets[mode]; - const score_t score = VP8SSE16x8(src, ref) * RD_DISTO_MULT - + VP8FixedCostsUV[mode] * lambda_d_uv; - if (score < best_uv_score) { - best_mode = mode; - best_uv_score = score; - } - } - VP8SetIntraUVMode(it, best_mode); - } - nz |= ReconstructUV(it, rd, it->yuv_out_ + U_OFF_ENC, it->mb_->uv_mode_); - - rd->nz = nz; - rd->score = best_score; -} - -//------------------------------------------------------------------------------ -// Entry point - -int VP8Decimate(VP8EncIterator* const it, VP8ModeScore* const rd, - VP8RDLevel rd_opt) { - int is_skipped; - const int method = it->enc_->method_; - - InitScore(rd); - - // We can perform predictions for Luma16x16 and Chroma8x8 already. - // Luma4x4 predictions needs to be done as-we-go. - VP8MakeLuma16Preds(it); - VP8MakeChroma8Preds(it); - - if (rd_opt > RD_OPT_NONE) { - it->do_trellis_ = (rd_opt >= RD_OPT_TRELLIS_ALL); - PickBestIntra16(it, rd); - if (method >= 2) { - PickBestIntra4(it, rd); - } - PickBestUV(it, rd); - if (rd_opt == RD_OPT_TRELLIS) { // finish off with trellis-optim now - it->do_trellis_ = 1; - SimpleQuantize(it, rd); - } - } else { - // At this point we have heuristically decided intra16 / intra4. - // For method >= 2, pick the best intra4/intra16 based on SSE (~tad slower). - // For method <= 1, we don't re-examine the decision but just go ahead with - // quantization/reconstruction. - RefineUsingDistortion(it, (method >= 2), (method >= 1), rd); - } - is_skipped = (rd->nz == 0); - VP8SetSkip(it, is_skipped); - return is_skipped; -} diff --git a/drivers/webp/enc/syntax.c b/drivers/webp/enc/syntax.c deleted file mode 100644 index 2b65f15ca1..0000000000 --- a/drivers/webp/enc/syntax.c +++ /dev/null @@ -1,383 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Header syntax writing -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> - -#include "../utils/utils.h" -#include "webp/format_constants.h" // RIFF constants -#include "webp/mux_types.h" // ALPHA_FLAG -#include "./vp8enci.h" - -//------------------------------------------------------------------------------ -// Helper functions - -static int IsVP8XNeeded(const VP8Encoder* const enc) { - return !!enc->has_alpha_; // Currently the only case when VP8X is needed. - // This could change in the future. -} - -static int PutPaddingByte(const WebPPicture* const pic) { - const uint8_t pad_byte[1] = { 0 }; - return !!pic->writer(pad_byte, 1, pic); -} - -//------------------------------------------------------------------------------ -// Writers for header's various pieces (in order of appearance) - -static WebPEncodingError PutRIFFHeader(const VP8Encoder* const enc, - size_t riff_size) { - const WebPPicture* const pic = enc->pic_; - uint8_t riff[RIFF_HEADER_SIZE] = { - 'R', 'I', 'F', 'F', 0, 0, 0, 0, 'W', 'E', 'B', 'P' - }; - assert(riff_size == (uint32_t)riff_size); - PutLE32(riff + TAG_SIZE, (uint32_t)riff_size); - if (!pic->writer(riff, sizeof(riff), pic)) { - return VP8_ENC_ERROR_BAD_WRITE; - } - return VP8_ENC_OK; -} - -static WebPEncodingError PutVP8XHeader(const VP8Encoder* const enc) { - const WebPPicture* const pic = enc->pic_; - uint8_t vp8x[CHUNK_HEADER_SIZE + VP8X_CHUNK_SIZE] = { - 'V', 'P', '8', 'X' - }; - uint32_t flags = 0; - - assert(IsVP8XNeeded(enc)); - assert(pic->width >= 1 && pic->height >= 1); - assert(pic->width <= MAX_CANVAS_SIZE && pic->height <= MAX_CANVAS_SIZE); - - if (enc->has_alpha_) { - flags |= ALPHA_FLAG; - } - - PutLE32(vp8x + TAG_SIZE, VP8X_CHUNK_SIZE); - PutLE32(vp8x + CHUNK_HEADER_SIZE, flags); - PutLE24(vp8x + CHUNK_HEADER_SIZE + 4, pic->width - 1); - PutLE24(vp8x + CHUNK_HEADER_SIZE + 7, pic->height - 1); - if (!pic->writer(vp8x, sizeof(vp8x), pic)) { - return VP8_ENC_ERROR_BAD_WRITE; - } - return VP8_ENC_OK; -} - -static WebPEncodingError PutAlphaChunk(const VP8Encoder* const enc) { - const WebPPicture* const pic = enc->pic_; - uint8_t alpha_chunk_hdr[CHUNK_HEADER_SIZE] = { - 'A', 'L', 'P', 'H' - }; - - assert(enc->has_alpha_); - - // Alpha chunk header. - PutLE32(alpha_chunk_hdr + TAG_SIZE, enc->alpha_data_size_); - if (!pic->writer(alpha_chunk_hdr, sizeof(alpha_chunk_hdr), pic)) { - return VP8_ENC_ERROR_BAD_WRITE; - } - - // Alpha chunk data. - if (!pic->writer(enc->alpha_data_, enc->alpha_data_size_, pic)) { - return VP8_ENC_ERROR_BAD_WRITE; - } - - // Padding. - if ((enc->alpha_data_size_ & 1) && !PutPaddingByte(pic)) { - return VP8_ENC_ERROR_BAD_WRITE; - } - return VP8_ENC_OK; -} - -static WebPEncodingError PutVP8Header(const WebPPicture* const pic, - size_t vp8_size) { - uint8_t vp8_chunk_hdr[CHUNK_HEADER_SIZE] = { - 'V', 'P', '8', ' ' - }; - assert(vp8_size == (uint32_t)vp8_size); - PutLE32(vp8_chunk_hdr + TAG_SIZE, (uint32_t)vp8_size); - if (!pic->writer(vp8_chunk_hdr, sizeof(vp8_chunk_hdr), pic)) { - return VP8_ENC_ERROR_BAD_WRITE; - } - return VP8_ENC_OK; -} - -static WebPEncodingError PutVP8FrameHeader(const WebPPicture* const pic, - int profile, size_t size0) { - uint8_t vp8_frm_hdr[VP8_FRAME_HEADER_SIZE]; - uint32_t bits; - - if (size0 >= VP8_MAX_PARTITION0_SIZE) { // partition #0 is too big to fit - return VP8_ENC_ERROR_PARTITION0_OVERFLOW; - } - - // Paragraph 9.1. - bits = 0 // keyframe (1b) - | (profile << 1) // profile (3b) - | (1 << 4) // visible (1b) - | ((uint32_t)size0 << 5); // partition length (19b) - vp8_frm_hdr[0] = (bits >> 0) & 0xff; - vp8_frm_hdr[1] = (bits >> 8) & 0xff; - vp8_frm_hdr[2] = (bits >> 16) & 0xff; - // signature - vp8_frm_hdr[3] = (VP8_SIGNATURE >> 16) & 0xff; - vp8_frm_hdr[4] = (VP8_SIGNATURE >> 8) & 0xff; - vp8_frm_hdr[5] = (VP8_SIGNATURE >> 0) & 0xff; - // dimensions - vp8_frm_hdr[6] = pic->width & 0xff; - vp8_frm_hdr[7] = pic->width >> 8; - vp8_frm_hdr[8] = pic->height & 0xff; - vp8_frm_hdr[9] = pic->height >> 8; - - if (!pic->writer(vp8_frm_hdr, sizeof(vp8_frm_hdr), pic)) { - return VP8_ENC_ERROR_BAD_WRITE; - } - return VP8_ENC_OK; -} - -// WebP Headers. -static int PutWebPHeaders(const VP8Encoder* const enc, size_t size0, - size_t vp8_size, size_t riff_size) { - WebPPicture* const pic = enc->pic_; - WebPEncodingError err = VP8_ENC_OK; - - // RIFF header. - err = PutRIFFHeader(enc, riff_size); - if (err != VP8_ENC_OK) goto Error; - - // VP8X. - if (IsVP8XNeeded(enc)) { - err = PutVP8XHeader(enc); - if (err != VP8_ENC_OK) goto Error; - } - - // Alpha. - if (enc->has_alpha_) { - err = PutAlphaChunk(enc); - if (err != VP8_ENC_OK) goto Error; - } - - // VP8 header. - err = PutVP8Header(pic, vp8_size); - if (err != VP8_ENC_OK) goto Error; - - // VP8 frame header. - err = PutVP8FrameHeader(pic, enc->profile_, size0); - if (err != VP8_ENC_OK) goto Error; - - // All OK. - return 1; - - // Error. - Error: - return WebPEncodingSetError(pic, err); -} - -// Segmentation header -static void PutSegmentHeader(VP8BitWriter* const bw, - const VP8Encoder* const enc) { - const VP8EncSegmentHeader* const hdr = &enc->segment_hdr_; - const VP8EncProba* const proba = &enc->proba_; - if (VP8PutBitUniform(bw, (hdr->num_segments_ > 1))) { - // We always 'update' the quant and filter strength values - const int update_data = 1; - int s; - VP8PutBitUniform(bw, hdr->update_map_); - if (VP8PutBitUniform(bw, update_data)) { - // we always use absolute values, not relative ones - VP8PutBitUniform(bw, 1); // (segment_feature_mode = 1. Paragraph 9.3.) - for (s = 0; s < NUM_MB_SEGMENTS; ++s) { - VP8PutSignedBits(bw, enc->dqm_[s].quant_, 7); - } - for (s = 0; s < NUM_MB_SEGMENTS; ++s) { - VP8PutSignedBits(bw, enc->dqm_[s].fstrength_, 6); - } - } - if (hdr->update_map_) { - for (s = 0; s < 3; ++s) { - if (VP8PutBitUniform(bw, (proba->segments_[s] != 255u))) { - VP8PutBits(bw, proba->segments_[s], 8); - } - } - } - } -} - -// Filtering parameters header -static void PutFilterHeader(VP8BitWriter* const bw, - const VP8EncFilterHeader* const hdr) { - const int use_lf_delta = (hdr->i4x4_lf_delta_ != 0); - VP8PutBitUniform(bw, hdr->simple_); - VP8PutBits(bw, hdr->level_, 6); - VP8PutBits(bw, hdr->sharpness_, 3); - if (VP8PutBitUniform(bw, use_lf_delta)) { - // '0' is the default value for i4x4_lf_delta_ at frame #0. - const int need_update = (hdr->i4x4_lf_delta_ != 0); - if (VP8PutBitUniform(bw, need_update)) { - // we don't use ref_lf_delta => emit four 0 bits - VP8PutBits(bw, 0, 4); - // we use mode_lf_delta for i4x4 - VP8PutSignedBits(bw, hdr->i4x4_lf_delta_, 6); - VP8PutBits(bw, 0, 3); // all others unused - } - } -} - -// Nominal quantization parameters -static void PutQuant(VP8BitWriter* const bw, - const VP8Encoder* const enc) { - VP8PutBits(bw, enc->base_quant_, 7); - VP8PutSignedBits(bw, enc->dq_y1_dc_, 4); - VP8PutSignedBits(bw, enc->dq_y2_dc_, 4); - VP8PutSignedBits(bw, enc->dq_y2_ac_, 4); - VP8PutSignedBits(bw, enc->dq_uv_dc_, 4); - VP8PutSignedBits(bw, enc->dq_uv_ac_, 4); -} - -// Partition sizes -static int EmitPartitionsSize(const VP8Encoder* const enc, - WebPPicture* const pic) { - uint8_t buf[3 * (MAX_NUM_PARTITIONS - 1)]; - int p; - for (p = 0; p < enc->num_parts_ - 1; ++p) { - const size_t part_size = VP8BitWriterSize(enc->parts_ + p); - if (part_size >= VP8_MAX_PARTITION_SIZE) { - return WebPEncodingSetError(pic, VP8_ENC_ERROR_PARTITION_OVERFLOW); - } - buf[3 * p + 0] = (part_size >> 0) & 0xff; - buf[3 * p + 1] = (part_size >> 8) & 0xff; - buf[3 * p + 2] = (part_size >> 16) & 0xff; - } - return p ? pic->writer(buf, 3 * p, pic) : 1; -} - -//------------------------------------------------------------------------------ - -static int GeneratePartition0(VP8Encoder* const enc) { - VP8BitWriter* const bw = &enc->bw_; - const int mb_size = enc->mb_w_ * enc->mb_h_; - uint64_t pos1, pos2, pos3; - - pos1 = VP8BitWriterPos(bw); - if (!VP8BitWriterInit(bw, mb_size * 7 / 8)) { // ~7 bits per macroblock - return WebPEncodingSetError(enc->pic_, VP8_ENC_ERROR_OUT_OF_MEMORY); - } - VP8PutBitUniform(bw, 0); // colorspace - VP8PutBitUniform(bw, 0); // clamp type - - PutSegmentHeader(bw, enc); - PutFilterHeader(bw, &enc->filter_hdr_); - VP8PutBits(bw, enc->num_parts_ == 8 ? 3 : - enc->num_parts_ == 4 ? 2 : - enc->num_parts_ == 2 ? 1 : 0, 2); - PutQuant(bw, enc); - VP8PutBitUniform(bw, 0); // no proba update - VP8WriteProbas(bw, &enc->proba_); - pos2 = VP8BitWriterPos(bw); - VP8CodeIntraModes(enc); - VP8BitWriterFinish(bw); - - pos3 = VP8BitWriterPos(bw); - - if (enc->pic_->stats) { - enc->pic_->stats->header_bytes[0] = (int)((pos2 - pos1 + 7) >> 3); - enc->pic_->stats->header_bytes[1] = (int)((pos3 - pos2 + 7) >> 3); - enc->pic_->stats->alpha_data_size = (int)enc->alpha_data_size_; - } - if (bw->error_) { - return WebPEncodingSetError(enc->pic_, VP8_ENC_ERROR_OUT_OF_MEMORY); - } - return 1; -} - -void VP8EncFreeBitWriters(VP8Encoder* const enc) { - int p; - VP8BitWriterWipeOut(&enc->bw_); - for (p = 0; p < enc->num_parts_; ++p) { - VP8BitWriterWipeOut(enc->parts_ + p); - } -} - -int VP8EncWrite(VP8Encoder* const enc) { - WebPPicture* const pic = enc->pic_; - VP8BitWriter* const bw = &enc->bw_; - const int task_percent = 19; - const int percent_per_part = task_percent / enc->num_parts_; - const int final_percent = enc->percent_ + task_percent; - int ok = 0; - size_t vp8_size, pad, riff_size; - int p; - - // Partition #0 with header and partition sizes - ok = GeneratePartition0(enc); - if (!ok) return 0; - - // Compute VP8 size - vp8_size = VP8_FRAME_HEADER_SIZE + - VP8BitWriterSize(bw) + - 3 * (enc->num_parts_ - 1); - for (p = 0; p < enc->num_parts_; ++p) { - vp8_size += VP8BitWriterSize(enc->parts_ + p); - } - pad = vp8_size & 1; - vp8_size += pad; - - // Compute RIFF size - // At the minimum it is: "WEBPVP8 nnnn" + VP8 data size. - riff_size = TAG_SIZE + CHUNK_HEADER_SIZE + vp8_size; - if (IsVP8XNeeded(enc)) { // Add size for: VP8X header + data. - riff_size += CHUNK_HEADER_SIZE + VP8X_CHUNK_SIZE; - } - if (enc->has_alpha_) { // Add size for: ALPH header + data. - const uint32_t padded_alpha_size = enc->alpha_data_size_ + - (enc->alpha_data_size_ & 1); - riff_size += CHUNK_HEADER_SIZE + padded_alpha_size; - } - // Sanity check. - if (riff_size > 0xfffffffeU) { - return WebPEncodingSetError(pic, VP8_ENC_ERROR_FILE_TOO_BIG); - } - - // Emit headers and partition #0 - { - const uint8_t* const part0 = VP8BitWriterBuf(bw); - const size_t size0 = VP8BitWriterSize(bw); - ok = ok && PutWebPHeaders(enc, size0, vp8_size, riff_size) - && pic->writer(part0, size0, pic) - && EmitPartitionsSize(enc, pic); - VP8BitWriterWipeOut(bw); // will free the internal buffer. - } - - // Token partitions - for (p = 0; p < enc->num_parts_; ++p) { - const uint8_t* const buf = VP8BitWriterBuf(enc->parts_ + p); - const size_t size = VP8BitWriterSize(enc->parts_ + p); - if (size) - ok = ok && pic->writer(buf, size, pic); - VP8BitWriterWipeOut(enc->parts_ + p); // will free the internal buffer. - ok = ok && WebPReportProgress(pic, enc->percent_ + percent_per_part, - &enc->percent_); - } - - // Padding byte - if (ok && pad) { - ok = PutPaddingByte(pic); - } - - enc->coded_size_ = (int)(CHUNK_HEADER_SIZE + riff_size); - ok = ok && WebPReportProgress(pic, final_percent, &enc->percent_); - return ok; -} - -//------------------------------------------------------------------------------ - diff --git a/drivers/webp/enc/token.c b/drivers/webp/enc/token.c deleted file mode 100644 index e73256b37e..0000000000 --- a/drivers/webp/enc/token.c +++ /dev/null @@ -1,285 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Paginated token buffer -// -// A 'token' is a bit value associated with a probability, either fixed -// or a later-to-be-determined after statistics have been collected. -// For dynamic probability, we just record the slot id (idx) for the probability -// value in the final probability array (uint8_t* probas in VP8EmitTokens). -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> -#include <stdlib.h> -#include <string.h> - -#include "./cost.h" -#include "./vp8enci.h" -#include "../utils/utils.h" - -#if !defined(DISABLE_TOKEN_BUFFER) - -// we use pages to reduce the number of memcpy() -#define MIN_PAGE_SIZE 8192 // minimum number of token per page -#define FIXED_PROBA_BIT (1u << 14) - -typedef uint16_t token_t; // bit #15: bit value - // bit #14: flags for constant proba or idx - // bits #0..13: slot or constant proba -struct VP8Tokens { - VP8Tokens* next_; // pointer to next page -}; -// Token data is located in memory just after the next_ field. -// This macro is used to return their address and hide the trick. -#define TOKEN_DATA(p) ((const token_t*)&(p)[1]) - -//------------------------------------------------------------------------------ - -void VP8TBufferInit(VP8TBuffer* const b, int page_size) { - b->tokens_ = NULL; - b->pages_ = NULL; - b->last_page_ = &b->pages_; - b->left_ = 0; - b->page_size_ = (page_size < MIN_PAGE_SIZE) ? MIN_PAGE_SIZE : page_size; - b->error_ = 0; -} - -void VP8TBufferClear(VP8TBuffer* const b) { - if (b != NULL) { - VP8Tokens* p = b->pages_; - while (p != NULL) { - VP8Tokens* const next = p->next_; - WebPSafeFree(p); - p = next; - } - VP8TBufferInit(b, b->page_size_); - } -} - -static int TBufferNewPage(VP8TBuffer* const b) { - VP8Tokens* page = NULL; - if (!b->error_) { - const size_t size = sizeof(*page) + b->page_size_ * sizeof(token_t); - page = (VP8Tokens*)WebPSafeMalloc(1ULL, size); - } - if (page == NULL) { - b->error_ = 1; - return 0; - } - page->next_ = NULL; - - *b->last_page_ = page; - b->last_page_ = &page->next_; - b->left_ = b->page_size_; - b->tokens_ = (token_t*)TOKEN_DATA(page); - return 1; -} - -//------------------------------------------------------------------------------ - -#define TOKEN_ID(t, b, ctx) \ - (NUM_PROBAS * ((ctx) + NUM_CTX * ((b) + NUM_BANDS * (t)))) - -static WEBP_INLINE uint32_t AddToken(VP8TBuffer* const b, - uint32_t bit, uint32_t proba_idx) { - assert(proba_idx < FIXED_PROBA_BIT); - assert(bit <= 1); - if (b->left_ > 0 || TBufferNewPage(b)) { - const int slot = --b->left_; - b->tokens_[slot] = (bit << 15) | proba_idx; - } - return bit; -} - -static WEBP_INLINE void AddConstantToken(VP8TBuffer* const b, - uint32_t bit, uint32_t proba) { - assert(proba < 256); - assert(bit <= 1); - if (b->left_ > 0 || TBufferNewPage(b)) { - const int slot = --b->left_; - b->tokens_[slot] = (bit << 15) | FIXED_PROBA_BIT | proba; - } -} - -int VP8RecordCoeffTokens(const int ctx, const int coeff_type, - int first, int last, - const int16_t* const coeffs, - VP8TBuffer* const tokens) { - int n = first; - uint32_t base_id = TOKEN_ID(coeff_type, n, ctx); - if (!AddToken(tokens, last >= 0, base_id + 0)) { - return 0; - } - - while (n < 16) { - const int c = coeffs[n++]; - const int sign = c < 0; - const uint32_t v = sign ? -c : c; - if (!AddToken(tokens, v != 0, base_id + 1)) { - base_id = TOKEN_ID(coeff_type, VP8EncBands[n], 0); // ctx=0 - continue; - } - if (!AddToken(tokens, v > 1, base_id + 2)) { - base_id = TOKEN_ID(coeff_type, VP8EncBands[n], 1); // ctx=1 - } else { - if (!AddToken(tokens, v > 4, base_id + 3)) { - if (AddToken(tokens, v != 2, base_id + 4)) - AddToken(tokens, v == 4, base_id + 5); - } else if (!AddToken(tokens, v > 10, base_id + 6)) { - if (!AddToken(tokens, v > 6, base_id + 7)) { - AddConstantToken(tokens, v == 6, 159); - } else { - AddConstantToken(tokens, v >= 9, 165); - AddConstantToken(tokens, !(v & 1), 145); - } - } else { - int mask; - const uint8_t* tab; - uint32_t residue = v - 3; - if (residue < (8 << 1)) { // VP8Cat3 (3b) - AddToken(tokens, 0, base_id + 8); - AddToken(tokens, 0, base_id + 9); - residue -= (8 << 0); - mask = 1 << 2; - tab = VP8Cat3; - } else if (residue < (8 << 2)) { // VP8Cat4 (4b) - AddToken(tokens, 0, base_id + 8); - AddToken(tokens, 1, base_id + 9); - residue -= (8 << 1); - mask = 1 << 3; - tab = VP8Cat4; - } else if (residue < (8 << 3)) { // VP8Cat5 (5b) - AddToken(tokens, 1, base_id + 8); - AddToken(tokens, 0, base_id + 10); - residue -= (8 << 2); - mask = 1 << 4; - tab = VP8Cat5; - } else { // VP8Cat6 (11b) - AddToken(tokens, 1, base_id + 8); - AddToken(tokens, 1, base_id + 10); - residue -= (8 << 3); - mask = 1 << 10; - tab = VP8Cat6; - } - while (mask) { - AddConstantToken(tokens, !!(residue & mask), *tab++); - mask >>= 1; - } - } - base_id = TOKEN_ID(coeff_type, VP8EncBands[n], 2); // ctx=2 - } - AddConstantToken(tokens, sign, 128); - if (n == 16 || !AddToken(tokens, n <= last, base_id + 0)) { - return 1; // EOB - } - } - return 1; -} - -#undef TOKEN_ID - -//------------------------------------------------------------------------------ -// This function works, but isn't currently used. Saved for later. - -#if 0 - -static void Record(int bit, proba_t* const stats) { - proba_t p = *stats; - if (p >= 0xffff0000u) { // an overflow is inbound. - p = ((p + 1u) >> 1) & 0x7fff7fffu; // -> divide the stats by 2. - } - // record bit count (lower 16 bits) and increment total count (upper 16 bits). - p += 0x00010000u + bit; - *stats = p; -} - -void VP8TokenToStats(const VP8TBuffer* const b, proba_t* const stats) { - const VP8Tokens* p = b->pages_; - while (p != NULL) { - const int N = (p->next_ == NULL) ? b->left_ : 0; - int n = MAX_NUM_TOKEN; - const token_t* const tokens = TOKEN_DATA(p); - while (n-- > N) { - const token_t token = tokens[n]; - if (!(token & FIXED_PROBA_BIT)) { - Record((token >> 15) & 1, stats + (token & 0x3fffu)); - } - } - p = p->next_; - } -} - -#endif // 0 - -//------------------------------------------------------------------------------ -// Final coding pass, with known probabilities - -int VP8EmitTokens(VP8TBuffer* const b, VP8BitWriter* const bw, - const uint8_t* const probas, int final_pass) { - const VP8Tokens* p = b->pages_; - assert(!b->error_); - while (p != NULL) { - const VP8Tokens* const next = p->next_; - const int N = (next == NULL) ? b->left_ : 0; - int n = b->page_size_; - const token_t* const tokens = TOKEN_DATA(p); - while (n-- > N) { - const token_t token = tokens[n]; - const int bit = (token >> 15) & 1; - if (token & FIXED_PROBA_BIT) { - VP8PutBit(bw, bit, token & 0xffu); // constant proba - } else { - VP8PutBit(bw, bit, probas[token & 0x3fffu]); - } - } - if (final_pass) WebPSafeFree((void*)p); - p = next; - } - if (final_pass) b->pages_ = NULL; - return 1; -} - -// Size estimation -size_t VP8EstimateTokenSize(VP8TBuffer* const b, const uint8_t* const probas) { - size_t size = 0; - const VP8Tokens* p = b->pages_; - assert(!b->error_); - while (p != NULL) { - const VP8Tokens* const next = p->next_; - const int N = (next == NULL) ? b->left_ : 0; - int n = b->page_size_; - const token_t* const tokens = TOKEN_DATA(p); - while (n-- > N) { - const token_t token = tokens[n]; - const int bit = token & (1 << 15); - if (token & FIXED_PROBA_BIT) { - size += VP8BitCost(bit, token & 0xffu); - } else { - size += VP8BitCost(bit, probas[token & 0x3fffu]); - } - } - p = next; - } - return size; -} - -//------------------------------------------------------------------------------ - -#else // DISABLE_TOKEN_BUFFER - -void VP8TBufferInit(VP8TBuffer* const b) { - (void)b; -} -void VP8TBufferClear(VP8TBuffer* const b) { - (void)b; -} - -#endif // !DISABLE_TOKEN_BUFFER - diff --git a/drivers/webp/enc/tree.c b/drivers/webp/enc/tree.c deleted file mode 100644 index f141006d19..0000000000 --- a/drivers/webp/enc/tree.c +++ /dev/null @@ -1,504 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Coding of token probabilities, intra modes and segments. -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./vp8enci.h" - -//------------------------------------------------------------------------------ -// Default probabilities - -// Paragraph 13.5 -const uint8_t - VP8CoeffsProba0[NUM_TYPES][NUM_BANDS][NUM_CTX][NUM_PROBAS] = { - { { { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } - }, - { { 253, 136, 254, 255, 228, 219, 128, 128, 128, 128, 128 }, - { 189, 129, 242, 255, 227, 213, 255, 219, 128, 128, 128 }, - { 106, 126, 227, 252, 214, 209, 255, 255, 128, 128, 128 } - }, - { { 1, 98, 248, 255, 236, 226, 255, 255, 128, 128, 128 }, - { 181, 133, 238, 254, 221, 234, 255, 154, 128, 128, 128 }, - { 78, 134, 202, 247, 198, 180, 255, 219, 128, 128, 128 }, - }, - { { 1, 185, 249, 255, 243, 255, 128, 128, 128, 128, 128 }, - { 184, 150, 247, 255, 236, 224, 128, 128, 128, 128, 128 }, - { 77, 110, 216, 255, 236, 230, 128, 128, 128, 128, 128 }, - }, - { { 1, 101, 251, 255, 241, 255, 128, 128, 128, 128, 128 }, - { 170, 139, 241, 252, 236, 209, 255, 255, 128, 128, 128 }, - { 37, 116, 196, 243, 228, 255, 255, 255, 128, 128, 128 } - }, - { { 1, 204, 254, 255, 245, 255, 128, 128, 128, 128, 128 }, - { 207, 160, 250, 255, 238, 128, 128, 128, 128, 128, 128 }, - { 102, 103, 231, 255, 211, 171, 128, 128, 128, 128, 128 } - }, - { { 1, 152, 252, 255, 240, 255, 128, 128, 128, 128, 128 }, - { 177, 135, 243, 255, 234, 225, 128, 128, 128, 128, 128 }, - { 80, 129, 211, 255, 194, 224, 128, 128, 128, 128, 128 } - }, - { { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 246, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 255, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } - } - }, - { { { 198, 35, 237, 223, 193, 187, 162, 160, 145, 155, 62 }, - { 131, 45, 198, 221, 172, 176, 220, 157, 252, 221, 1 }, - { 68, 47, 146, 208, 149, 167, 221, 162, 255, 223, 128 } - }, - { { 1, 149, 241, 255, 221, 224, 255, 255, 128, 128, 128 }, - { 184, 141, 234, 253, 222, 220, 255, 199, 128, 128, 128 }, - { 81, 99, 181, 242, 176, 190, 249, 202, 255, 255, 128 } - }, - { { 1, 129, 232, 253, 214, 197, 242, 196, 255, 255, 128 }, - { 99, 121, 210, 250, 201, 198, 255, 202, 128, 128, 128 }, - { 23, 91, 163, 242, 170, 187, 247, 210, 255, 255, 128 } - }, - { { 1, 200, 246, 255, 234, 255, 128, 128, 128, 128, 128 }, - { 109, 178, 241, 255, 231, 245, 255, 255, 128, 128, 128 }, - { 44, 130, 201, 253, 205, 192, 255, 255, 128, 128, 128 } - }, - { { 1, 132, 239, 251, 219, 209, 255, 165, 128, 128, 128 }, - { 94, 136, 225, 251, 218, 190, 255, 255, 128, 128, 128 }, - { 22, 100, 174, 245, 186, 161, 255, 199, 128, 128, 128 } - }, - { { 1, 182, 249, 255, 232, 235, 128, 128, 128, 128, 128 }, - { 124, 143, 241, 255, 227, 234, 128, 128, 128, 128, 128 }, - { 35, 77, 181, 251, 193, 211, 255, 205, 128, 128, 128 } - }, - { { 1, 157, 247, 255, 236, 231, 255, 255, 128, 128, 128 }, - { 121, 141, 235, 255, 225, 227, 255, 255, 128, 128, 128 }, - { 45, 99, 188, 251, 195, 217, 255, 224, 128, 128, 128 } - }, - { { 1, 1, 251, 255, 213, 255, 128, 128, 128, 128, 128 }, - { 203, 1, 248, 255, 255, 128, 128, 128, 128, 128, 128 }, - { 137, 1, 177, 255, 224, 255, 128, 128, 128, 128, 128 } - } - }, - { { { 253, 9, 248, 251, 207, 208, 255, 192, 128, 128, 128 }, - { 175, 13, 224, 243, 193, 185, 249, 198, 255, 255, 128 }, - { 73, 17, 171, 221, 161, 179, 236, 167, 255, 234, 128 } - }, - { { 1, 95, 247, 253, 212, 183, 255, 255, 128, 128, 128 }, - { 239, 90, 244, 250, 211, 209, 255, 255, 128, 128, 128 }, - { 155, 77, 195, 248, 188, 195, 255, 255, 128, 128, 128 } - }, - { { 1, 24, 239, 251, 218, 219, 255, 205, 128, 128, 128 }, - { 201, 51, 219, 255, 196, 186, 128, 128, 128, 128, 128 }, - { 69, 46, 190, 239, 201, 218, 255, 228, 128, 128, 128 } - }, - { { 1, 191, 251, 255, 255, 128, 128, 128, 128, 128, 128 }, - { 223, 165, 249, 255, 213, 255, 128, 128, 128, 128, 128 }, - { 141, 124, 248, 255, 255, 128, 128, 128, 128, 128, 128 } - }, - { { 1, 16, 248, 255, 255, 128, 128, 128, 128, 128, 128 }, - { 190, 36, 230, 255, 236, 255, 128, 128, 128, 128, 128 }, - { 149, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 } - }, - { { 1, 226, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 247, 192, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 240, 128, 255, 128, 128, 128, 128, 128, 128, 128, 128 } - }, - { { 1, 134, 252, 255, 255, 128, 128, 128, 128, 128, 128 }, - { 213, 62, 250, 255, 255, 128, 128, 128, 128, 128, 128 }, - { 55, 93, 255, 128, 128, 128, 128, 128, 128, 128, 128 } - }, - { { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } - } - }, - { { { 202, 24, 213, 235, 186, 191, 220, 160, 240, 175, 255 }, - { 126, 38, 182, 232, 169, 184, 228, 174, 255, 187, 128 }, - { 61, 46, 138, 219, 151, 178, 240, 170, 255, 216, 128 } - }, - { { 1, 112, 230, 250, 199, 191, 247, 159, 255, 255, 128 }, - { 166, 109, 228, 252, 211, 215, 255, 174, 128, 128, 128 }, - { 39, 77, 162, 232, 172, 180, 245, 178, 255, 255, 128 } - }, - { { 1, 52, 220, 246, 198, 199, 249, 220, 255, 255, 128 }, - { 124, 74, 191, 243, 183, 193, 250, 221, 255, 255, 128 }, - { 24, 71, 130, 219, 154, 170, 243, 182, 255, 255, 128 } - }, - { { 1, 182, 225, 249, 219, 240, 255, 224, 128, 128, 128 }, - { 149, 150, 226, 252, 216, 205, 255, 171, 128, 128, 128 }, - { 28, 108, 170, 242, 183, 194, 254, 223, 255, 255, 128 } - }, - { { 1, 81, 230, 252, 204, 203, 255, 192, 128, 128, 128 }, - { 123, 102, 209, 247, 188, 196, 255, 233, 128, 128, 128 }, - { 20, 95, 153, 243, 164, 173, 255, 203, 128, 128, 128 } - }, - { { 1, 222, 248, 255, 216, 213, 128, 128, 128, 128, 128 }, - { 168, 175, 246, 252, 235, 205, 255, 255, 128, 128, 128 }, - { 47, 116, 215, 255, 211, 212, 255, 255, 128, 128, 128 } - }, - { { 1, 121, 236, 253, 212, 214, 255, 255, 128, 128, 128 }, - { 141, 84, 213, 252, 201, 202, 255, 219, 128, 128, 128 }, - { 42, 80, 160, 240, 162, 185, 255, 205, 128, 128, 128 } - }, - { { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 244, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 238, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 } - } - } -}; - -void VP8DefaultProbas(VP8Encoder* const enc) { - VP8EncProba* const probas = &enc->proba_; - probas->use_skip_proba_ = 0; - memset(probas->segments_, 255u, sizeof(probas->segments_)); - memcpy(probas->coeffs_, VP8CoeffsProba0, sizeof(VP8CoeffsProba0)); - // Note: we could hard-code the level_costs_ corresponding to VP8CoeffsProba0, - // but that's ~11k of static data. Better call VP8CalculateLevelCosts() later. - probas->dirty_ = 1; -} - -// Paragraph 11.5. 900bytes. -static const uint8_t kBModesProba[NUM_BMODES][NUM_BMODES][NUM_BMODES - 1] = { - { { 231, 120, 48, 89, 115, 113, 120, 152, 112 }, - { 152, 179, 64, 126, 170, 118, 46, 70, 95 }, - { 175, 69, 143, 80, 85, 82, 72, 155, 103 }, - { 56, 58, 10, 171, 218, 189, 17, 13, 152 }, - { 114, 26, 17, 163, 44, 195, 21, 10, 173 }, - { 121, 24, 80, 195, 26, 62, 44, 64, 85 }, - { 144, 71, 10, 38, 171, 213, 144, 34, 26 }, - { 170, 46, 55, 19, 136, 160, 33, 206, 71 }, - { 63, 20, 8, 114, 114, 208, 12, 9, 226 }, - { 81, 40, 11, 96, 182, 84, 29, 16, 36 } }, - { { 134, 183, 89, 137, 98, 101, 106, 165, 148 }, - { 72, 187, 100, 130, 157, 111, 32, 75, 80 }, - { 66, 102, 167, 99, 74, 62, 40, 234, 128 }, - { 41, 53, 9, 178, 241, 141, 26, 8, 107 }, - { 74, 43, 26, 146, 73, 166, 49, 23, 157 }, - { 65, 38, 105, 160, 51, 52, 31, 115, 128 }, - { 104, 79, 12, 27, 217, 255, 87, 17, 7 }, - { 87, 68, 71, 44, 114, 51, 15, 186, 23 }, - { 47, 41, 14, 110, 182, 183, 21, 17, 194 }, - { 66, 45, 25, 102, 197, 189, 23, 18, 22 } }, - { { 88, 88, 147, 150, 42, 46, 45, 196, 205 }, - { 43, 97, 183, 117, 85, 38, 35, 179, 61 }, - { 39, 53, 200, 87, 26, 21, 43, 232, 171 }, - { 56, 34, 51, 104, 114, 102, 29, 93, 77 }, - { 39, 28, 85, 171, 58, 165, 90, 98, 64 }, - { 34, 22, 116, 206, 23, 34, 43, 166, 73 }, - { 107, 54, 32, 26, 51, 1, 81, 43, 31 }, - { 68, 25, 106, 22, 64, 171, 36, 225, 114 }, - { 34, 19, 21, 102, 132, 188, 16, 76, 124 }, - { 62, 18, 78, 95, 85, 57, 50, 48, 51 } }, - { { 193, 101, 35, 159, 215, 111, 89, 46, 111 }, - { 60, 148, 31, 172, 219, 228, 21, 18, 111 }, - { 112, 113, 77, 85, 179, 255, 38, 120, 114 }, - { 40, 42, 1, 196, 245, 209, 10, 25, 109 }, - { 88, 43, 29, 140, 166, 213, 37, 43, 154 }, - { 61, 63, 30, 155, 67, 45, 68, 1, 209 }, - { 100, 80, 8, 43, 154, 1, 51, 26, 71 }, - { 142, 78, 78, 16, 255, 128, 34, 197, 171 }, - { 41, 40, 5, 102, 211, 183, 4, 1, 221 }, - { 51, 50, 17, 168, 209, 192, 23, 25, 82 } }, - { { 138, 31, 36, 171, 27, 166, 38, 44, 229 }, - { 67, 87, 58, 169, 82, 115, 26, 59, 179 }, - { 63, 59, 90, 180, 59, 166, 93, 73, 154 }, - { 40, 40, 21, 116, 143, 209, 34, 39, 175 }, - { 47, 15, 16, 183, 34, 223, 49, 45, 183 }, - { 46, 17, 33, 183, 6, 98, 15, 32, 183 }, - { 57, 46, 22, 24, 128, 1, 54, 17, 37 }, - { 65, 32, 73, 115, 28, 128, 23, 128, 205 }, - { 40, 3, 9, 115, 51, 192, 18, 6, 223 }, - { 87, 37, 9, 115, 59, 77, 64, 21, 47 } }, - { { 104, 55, 44, 218, 9, 54, 53, 130, 226 }, - { 64, 90, 70, 205, 40, 41, 23, 26, 57 }, - { 54, 57, 112, 184, 5, 41, 38, 166, 213 }, - { 30, 34, 26, 133, 152, 116, 10, 32, 134 }, - { 39, 19, 53, 221, 26, 114, 32, 73, 255 }, - { 31, 9, 65, 234, 2, 15, 1, 118, 73 }, - { 75, 32, 12, 51, 192, 255, 160, 43, 51 }, - { 88, 31, 35, 67, 102, 85, 55, 186, 85 }, - { 56, 21, 23, 111, 59, 205, 45, 37, 192 }, - { 55, 38, 70, 124, 73, 102, 1, 34, 98 } }, - { { 125, 98, 42, 88, 104, 85, 117, 175, 82 }, - { 95, 84, 53, 89, 128, 100, 113, 101, 45 }, - { 75, 79, 123, 47, 51, 128, 81, 171, 1 }, - { 57, 17, 5, 71, 102, 57, 53, 41, 49 }, - { 38, 33, 13, 121, 57, 73, 26, 1, 85 }, - { 41, 10, 67, 138, 77, 110, 90, 47, 114 }, - { 115, 21, 2, 10, 102, 255, 166, 23, 6 }, - { 101, 29, 16, 10, 85, 128, 101, 196, 26 }, - { 57, 18, 10, 102, 102, 213, 34, 20, 43 }, - { 117, 20, 15, 36, 163, 128, 68, 1, 26 } }, - { { 102, 61, 71, 37, 34, 53, 31, 243, 192 }, - { 69, 60, 71, 38, 73, 119, 28, 222, 37 }, - { 68, 45, 128, 34, 1, 47, 11, 245, 171 }, - { 62, 17, 19, 70, 146, 85, 55, 62, 70 }, - { 37, 43, 37, 154, 100, 163, 85, 160, 1 }, - { 63, 9, 92, 136, 28, 64, 32, 201, 85 }, - { 75, 15, 9, 9, 64, 255, 184, 119, 16 }, - { 86, 6, 28, 5, 64, 255, 25, 248, 1 }, - { 56, 8, 17, 132, 137, 255, 55, 116, 128 }, - { 58, 15, 20, 82, 135, 57, 26, 121, 40 } }, - { { 164, 50, 31, 137, 154, 133, 25, 35, 218 }, - { 51, 103, 44, 131, 131, 123, 31, 6, 158 }, - { 86, 40, 64, 135, 148, 224, 45, 183, 128 }, - { 22, 26, 17, 131, 240, 154, 14, 1, 209 }, - { 45, 16, 21, 91, 64, 222, 7, 1, 197 }, - { 56, 21, 39, 155, 60, 138, 23, 102, 213 }, - { 83, 12, 13, 54, 192, 255, 68, 47, 28 }, - { 85, 26, 85, 85, 128, 128, 32, 146, 171 }, - { 18, 11, 7, 63, 144, 171, 4, 4, 246 }, - { 35, 27, 10, 146, 174, 171, 12, 26, 128 } }, - { { 190, 80, 35, 99, 180, 80, 126, 54, 45 }, - { 85, 126, 47, 87, 176, 51, 41, 20, 32 }, - { 101, 75, 128, 139, 118, 146, 116, 128, 85 }, - { 56, 41, 15, 176, 236, 85, 37, 9, 62 }, - { 71, 30, 17, 119, 118, 255, 17, 18, 138 }, - { 101, 38, 60, 138, 55, 70, 43, 26, 142 }, - { 146, 36, 19, 30, 171, 255, 97, 27, 20 }, - { 138, 45, 61, 62, 219, 1, 81, 188, 64 }, - { 32, 41, 20, 117, 151, 142, 20, 21, 163 }, - { 112, 19, 12, 61, 195, 128, 48, 4, 24 } } -}; - -static int PutI4Mode(VP8BitWriter* const bw, int mode, - const uint8_t* const prob) { - if (VP8PutBit(bw, mode != B_DC_PRED, prob[0])) { - if (VP8PutBit(bw, mode != B_TM_PRED, prob[1])) { - if (VP8PutBit(bw, mode != B_VE_PRED, prob[2])) { - if (!VP8PutBit(bw, mode >= B_LD_PRED, prob[3])) { - if (VP8PutBit(bw, mode != B_HE_PRED, prob[4])) { - VP8PutBit(bw, mode != B_RD_PRED, prob[5]); - } - } else { - if (VP8PutBit(bw, mode != B_LD_PRED, prob[6])) { - if (VP8PutBit(bw, mode != B_VL_PRED, prob[7])) { - VP8PutBit(bw, mode != B_HD_PRED, prob[8]); - } - } - } - } - } - } - return mode; -} - -static void PutI16Mode(VP8BitWriter* const bw, int mode) { - if (VP8PutBit(bw, (mode == TM_PRED || mode == H_PRED), 156)) { - VP8PutBit(bw, mode == TM_PRED, 128); // TM or HE - } else { - VP8PutBit(bw, mode == V_PRED, 163); // VE or DC - } -} - -static void PutUVMode(VP8BitWriter* const bw, int uv_mode) { - if (VP8PutBit(bw, uv_mode != DC_PRED, 142)) { - if (VP8PutBit(bw, uv_mode != V_PRED, 114)) { - VP8PutBit(bw, uv_mode != H_PRED, 183); // else: TM_PRED - } - } -} - -static void PutSegment(VP8BitWriter* const bw, int s, const uint8_t* p) { - if (VP8PutBit(bw, s >= 2, p[0])) p += 1; - VP8PutBit(bw, s & 1, p[1]); -} - -void VP8CodeIntraModes(VP8Encoder* const enc) { - VP8BitWriter* const bw = &enc->bw_; - VP8EncIterator it; - VP8IteratorInit(enc, &it); - do { - const VP8MBInfo* const mb = it.mb_; - const uint8_t* preds = it.preds_; - if (enc->segment_hdr_.update_map_) { - PutSegment(bw, mb->segment_, enc->proba_.segments_); - } - if (enc->proba_.use_skip_proba_) { - VP8PutBit(bw, mb->skip_, enc->proba_.skip_proba_); - } - if (VP8PutBit(bw, (mb->type_ != 0), 145)) { // i16x16 - PutI16Mode(bw, preds[0]); - } else { - const int preds_w = enc->preds_w_; - const uint8_t* top_pred = preds - preds_w; - int x, y; - for (y = 0; y < 4; ++y) { - int left = preds[-1]; - for (x = 0; x < 4; ++x) { - const uint8_t* const probas = kBModesProba[top_pred[x]][left]; - left = PutI4Mode(bw, preds[x], probas); - } - top_pred = preds; - preds += preds_w; - } - } - PutUVMode(bw, mb->uv_mode_); - } while (VP8IteratorNext(&it)); -} - -//------------------------------------------------------------------------------ -// Paragraph 13 - -const uint8_t - VP8CoeffsUpdateProba[NUM_TYPES][NUM_BANDS][NUM_CTX][NUM_PROBAS] = { - { { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 176, 246, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 223, 241, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 249, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 244, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 234, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 246, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 239, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 251, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 251, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 253, 255, 254, 255, 255, 255, 255, 255, 255 }, - { 250, 255, 254, 255, 254, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - } - }, - { { { 217, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 225, 252, 241, 253, 255, 255, 254, 255, 255, 255, 255 }, - { 234, 250, 241, 250, 253, 255, 253, 254, 255, 255, 255 } - }, - { { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 223, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 238, 253, 254, 254, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 249, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 253, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 247, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - } - }, - { { { 186, 251, 250, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 234, 251, 244, 254, 255, 255, 255, 255, 255, 255, 255 }, - { 251, 251, 243, 253, 254, 255, 254, 255, 255, 255, 255 } - }, - { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 236, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 251, 253, 253, 254, 254, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - } - }, - { { { 248, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 250, 254, 252, 254, 255, 255, 255, 255, 255, 255, 255 }, - { 248, 254, 249, 253, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 246, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 252, 254, 251, 254, 254, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 248, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 253, 255, 254, 254, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 245, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 253, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 251, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 252, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 249, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - } - } -}; - -void VP8WriteProbas(VP8BitWriter* const bw, const VP8EncProba* const probas) { - int t, b, c, p; - for (t = 0; t < NUM_TYPES; ++t) { - for (b = 0; b < NUM_BANDS; ++b) { - for (c = 0; c < NUM_CTX; ++c) { - for (p = 0; p < NUM_PROBAS; ++p) { - const uint8_t p0 = probas->coeffs_[t][b][c][p]; - const int update = (p0 != VP8CoeffsProba0[t][b][c][p]); - if (VP8PutBit(bw, update, VP8CoeffsUpdateProba[t][b][c][p])) { - VP8PutBits(bw, p0, 8); - } - } - } - } - } - if (VP8PutBitUniform(bw, probas->use_skip_proba_)) { - VP8PutBits(bw, probas->skip_proba_, 8); - } -} - diff --git a/drivers/webp/enc/vp8enci.h b/drivers/webp/enc/vp8enci.h deleted file mode 100644 index efd2f19a9b..0000000000 --- a/drivers/webp/enc/vp8enci.h +++ /dev/null @@ -1,531 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// WebP encoder: internal header. -// -// Author: Skal (pascal.massimino@gmail.com) - -#ifndef WEBP_ENC_VP8ENCI_H_ -#define WEBP_ENC_VP8ENCI_H_ - -#include <string.h> // for memcpy() -#include "../dec/common.h" -#include "../dsp/dsp.h" -#include "../utils/bit_writer.h" -#include "../utils/thread.h" -#include "../utils/utils.h" -#include "webp/encode.h" - -#ifdef __cplusplus -extern "C" { -#endif - -//------------------------------------------------------------------------------ -// Various defines and enums - -// version numbers -#define ENC_MAJ_VERSION 0 -#define ENC_MIN_VERSION 5 -#define ENC_REV_VERSION 1 - -enum { MAX_LF_LEVELS = 64, // Maximum loop filter level - MAX_VARIABLE_LEVEL = 67, // last (inclusive) level with variable cost - MAX_LEVEL = 2047 // max level (note: max codable is 2047 + 67) - }; - -typedef enum { // Rate-distortion optimization levels - RD_OPT_NONE = 0, // no rd-opt - RD_OPT_BASIC = 1, // basic scoring (no trellis) - RD_OPT_TRELLIS = 2, // perform trellis-quant on the final decision only - RD_OPT_TRELLIS_ALL = 3 // trellis-quant for every scoring (much slower) -} VP8RDLevel; - -// YUV-cache parameters. Cache is 32-bytes wide (= one cacheline). -// The original or reconstructed samples can be accessed using VP8Scan[]. -// The predicted blocks can be accessed using offsets to yuv_p_ and -// the arrays VP8*ModeOffsets[]. -// * YUV Samples area (yuv_in_/yuv_out_/yuv_out2_) -// (see VP8Scan[] for accessing the blocks, along with -// Y_OFF_ENC/U_OFF_ENC/V_OFF_ENC): -// +----+----+ -// Y_OFF_ENC |YYYY|UUVV| -// U_OFF_ENC |YYYY|UUVV| -// V_OFF_ENC |YYYY|....| <- 25% wasted U/V area -// |YYYY|....| -// +----+----+ -// * Prediction area ('yuv_p_', size = PRED_SIZE_ENC) -// Intra16 predictions (16x16 block each, two per row): -// |I16DC16|I16TM16| -// |I16VE16|I16HE16| -// Chroma U/V predictions (16x8 block each, two per row): -// |C8DC8|C8TM8| -// |C8VE8|C8HE8| -// Intra 4x4 predictions (4x4 block each) -// |I4DC4 I4TM4 I4VE4 I4HE4|I4RD4 I4VR4 I4LD4 I4VL4| -// |I4HD4 I4HU4 I4TMP .....|.......................| <- ~31% wasted -#define YUV_SIZE_ENC (BPS * 16) -#define PRED_SIZE_ENC (32 * BPS + 16 * BPS + 8 * BPS) // I16+Chroma+I4 preds -#define Y_OFF_ENC (0) -#define U_OFF_ENC (16) -#define V_OFF_ENC (16 + 8) - -extern const int VP8Scan[16]; // in quant.c -extern const int VP8UVModeOffsets[4]; // in analyze.c -extern const int VP8I16ModeOffsets[4]; -extern const int VP8I4ModeOffsets[NUM_BMODES]; - -// Layout of prediction blocks -// intra 16x16 -#define I16DC16 (0 * 16 * BPS) -#define I16TM16 (I16DC16 + 16) -#define I16VE16 (1 * 16 * BPS) -#define I16HE16 (I16VE16 + 16) -// chroma 8x8, two U/V blocks side by side (hence: 16x8 each) -#define C8DC8 (2 * 16 * BPS) -#define C8TM8 (C8DC8 + 1 * 16) -#define C8VE8 (2 * 16 * BPS + 8 * BPS) -#define C8HE8 (C8VE8 + 1 * 16) -// intra 4x4 -#define I4DC4 (3 * 16 * BPS + 0) -#define I4TM4 (I4DC4 + 4) -#define I4VE4 (I4DC4 + 8) -#define I4HE4 (I4DC4 + 12) -#define I4RD4 (I4DC4 + 16) -#define I4VR4 (I4DC4 + 20) -#define I4LD4 (I4DC4 + 24) -#define I4VL4 (I4DC4 + 28) -#define I4HD4 (3 * 16 * BPS + 4 * BPS) -#define I4HU4 (I4HD4 + 4) -#define I4TMP (I4HD4 + 8) - -typedef int64_t score_t; // type used for scores, rate, distortion -// Note that MAX_COST is not the maximum allowed by sizeof(score_t), -// in order to allow overflowing computations. -#define MAX_COST ((score_t)0x7fffffffffffffLL) - -#define QFIX 17 -#define BIAS(b) ((b) << (QFIX - 8)) -// Fun fact: this is the _only_ line where we're actually being lossy and -// discarding bits. -static WEBP_INLINE int QUANTDIV(uint32_t n, uint32_t iQ, uint32_t B) { - return (int)((n * iQ + B) >> QFIX); -} - -// Uncomment the following to remove token-buffer code: -// #define DISABLE_TOKEN_BUFFER - -//------------------------------------------------------------------------------ -// Headers - -typedef uint32_t proba_t; // 16b + 16b -typedef uint8_t ProbaArray[NUM_CTX][NUM_PROBAS]; -typedef proba_t StatsArray[NUM_CTX][NUM_PROBAS]; -typedef uint16_t CostArray[NUM_CTX][MAX_VARIABLE_LEVEL + 1]; -typedef const uint16_t* (*CostArrayPtr)[NUM_CTX]; // for easy casting -typedef const uint16_t* CostArrayMap[16][NUM_CTX]; -typedef double LFStats[NUM_MB_SEGMENTS][MAX_LF_LEVELS]; // filter stats - -typedef struct VP8Encoder VP8Encoder; - -// segment features -typedef struct { - int num_segments_; // Actual number of segments. 1 segment only = unused. - int update_map_; // whether to update the segment map or not. - // must be 0 if there's only 1 segment. - int size_; // bit-cost for transmitting the segment map -} VP8EncSegmentHeader; - -// Struct collecting all frame-persistent probabilities. -typedef struct { - uint8_t segments_[3]; // probabilities for segment tree - uint8_t skip_proba_; // final probability of being skipped. - ProbaArray coeffs_[NUM_TYPES][NUM_BANDS]; // 1056 bytes - StatsArray stats_[NUM_TYPES][NUM_BANDS]; // 4224 bytes - CostArray level_cost_[NUM_TYPES][NUM_BANDS]; // 13056 bytes - CostArrayMap remapped_costs_[NUM_TYPES]; // 1536 bytes - int dirty_; // if true, need to call VP8CalculateLevelCosts() - int use_skip_proba_; // Note: we always use skip_proba for now. - int nb_skip_; // number of skipped blocks -} VP8EncProba; - -// Filter parameters. Not actually used in the code (we don't perform -// the in-loop filtering), but filled from user's config -typedef struct { - int simple_; // filtering type: 0=complex, 1=simple - int level_; // base filter level [0..63] - int sharpness_; // [0..7] - int i4x4_lf_delta_; // delta filter level for i4x4 relative to i16x16 -} VP8EncFilterHeader; - -//------------------------------------------------------------------------------ -// Informations about the macroblocks. - -typedef struct { - // block type - unsigned int type_:2; // 0=i4x4, 1=i16x16 - unsigned int uv_mode_:2; - unsigned int skip_:1; - unsigned int segment_:2; - uint8_t alpha_; // quantization-susceptibility -} VP8MBInfo; - -typedef struct VP8Matrix { - uint16_t q_[16]; // quantizer steps - uint16_t iq_[16]; // reciprocals, fixed point. - uint32_t bias_[16]; // rounding bias - uint32_t zthresh_[16]; // value below which a coefficient is zeroed - uint16_t sharpen_[16]; // frequency boosters for slight sharpening -} VP8Matrix; - -typedef struct { - VP8Matrix y1_, y2_, uv_; // quantization matrices - int alpha_; // quant-susceptibility, range [-127,127]. Zero is neutral. - // Lower values indicate a lower risk of blurriness. - int beta_; // filter-susceptibility, range [0,255]. - int quant_; // final segment quantizer. - int fstrength_; // final in-loop filtering strength - int max_edge_; // max edge delta (for filtering strength) - int min_disto_; // minimum distortion required to trigger filtering record - // reactivities - int lambda_i16_, lambda_i4_, lambda_uv_; - int lambda_mode_, lambda_trellis_, tlambda_; - int lambda_trellis_i16_, lambda_trellis_i4_, lambda_trellis_uv_; - - // lambda values for distortion-based evaluation - score_t i4_penalty_; // penalty for using Intra4 -} VP8SegmentInfo; - -// Handy transient struct to accumulate score and info during RD-optimization -// and mode evaluation. -typedef struct { - score_t D, SD; // Distortion, spectral distortion - score_t H, R, score; // header bits, rate, score. - int16_t y_dc_levels[16]; // Quantized levels for luma-DC, luma-AC, chroma. - int16_t y_ac_levels[16][16]; - int16_t uv_levels[4 + 4][16]; - int mode_i16; // mode number for intra16 prediction - uint8_t modes_i4[16]; // mode numbers for intra4 predictions - int mode_uv; // mode number of chroma prediction - uint32_t nz; // non-zero blocks -} VP8ModeScore; - -// Iterator structure to iterate through macroblocks, pointing to the -// right neighbouring data (samples, predictions, contexts, ...) -typedef struct { - int x_, y_; // current macroblock - int y_stride_, uv_stride_; // respective strides - uint8_t* yuv_in_; // input samples - uint8_t* yuv_out_; // output samples - uint8_t* yuv_out2_; // secondary buffer swapped with yuv_out_. - uint8_t* yuv_p_; // scratch buffer for prediction - VP8Encoder* enc_; // back-pointer - VP8MBInfo* mb_; // current macroblock - VP8BitWriter* bw_; // current bit-writer - uint8_t* preds_; // intra mode predictors (4x4 blocks) - uint32_t* nz_; // non-zero pattern - uint8_t i4_boundary_[37]; // 32+5 boundary samples needed by intra4x4 - uint8_t* i4_top_; // pointer to the current top boundary sample - int i4_; // current intra4x4 mode being tested - int top_nz_[9]; // top-non-zero context. - int left_nz_[9]; // left-non-zero. left_nz[8] is independent. - uint64_t bit_count_[4][3]; // bit counters for coded levels. - uint64_t luma_bits_; // macroblock bit-cost for luma - uint64_t uv_bits_; // macroblock bit-cost for chroma - LFStats* lf_stats_; // filter stats (borrowed from enc_) - int do_trellis_; // if true, perform extra level optimisation - int count_down_; // number of mb still to be processed - int count_down0_; // starting counter value (for progress) - int percent0_; // saved initial progress percent - - uint8_t* y_left_; // left luma samples (addressable from index -1 to 15). - uint8_t* u_left_; // left u samples (addressable from index -1 to 7) - uint8_t* v_left_; // left v samples (addressable from index -1 to 7) - - uint8_t* y_top_; // top luma samples at position 'x_' - uint8_t* uv_top_; // top u/v samples at position 'x_', packed as 16 bytes - - // memory for storing y/u/v_left_ - uint8_t yuv_left_mem_[17 + 16 + 16 + 8 + WEBP_ALIGN_CST]; - // memory for yuv_* - uint8_t yuv_mem_[3 * YUV_SIZE_ENC + PRED_SIZE_ENC + WEBP_ALIGN_CST]; -} VP8EncIterator; - - // in iterator.c -// must be called first -void VP8IteratorInit(VP8Encoder* const enc, VP8EncIterator* const it); -// restart a scan -void VP8IteratorReset(VP8EncIterator* const it); -// reset iterator position to row 'y' -void VP8IteratorSetRow(VP8EncIterator* const it, int y); -// set count down (=number of iterations to go) -void VP8IteratorSetCountDown(VP8EncIterator* const it, int count_down); -// return true if iteration is finished -int VP8IteratorIsDone(const VP8EncIterator* const it); -// Import uncompressed samples from source. -// If tmp_32 is not NULL, import boundary samples too. -// tmp_32 is a 32-bytes scratch buffer that must be aligned in memory. -void VP8IteratorImport(VP8EncIterator* const it, uint8_t* tmp_32); -// export decimated samples -void VP8IteratorExport(const VP8EncIterator* const it); -// go to next macroblock. Returns false if not finished. -int VP8IteratorNext(VP8EncIterator* const it); -// save the yuv_out_ boundary values to top_/left_ arrays for next iterations. -void VP8IteratorSaveBoundary(VP8EncIterator* const it); -// Report progression based on macroblock rows. Return 0 for user-abort request. -int VP8IteratorProgress(const VP8EncIterator* const it, - int final_delta_percent); -// Intra4x4 iterations -void VP8IteratorStartI4(VP8EncIterator* const it); -// returns true if not done. -int VP8IteratorRotateI4(VP8EncIterator* const it, - const uint8_t* const yuv_out); - -// Non-zero context setup/teardown -void VP8IteratorNzToBytes(VP8EncIterator* const it); -void VP8IteratorBytesToNz(VP8EncIterator* const it); - -// Helper functions to set mode properties -void VP8SetIntra16Mode(const VP8EncIterator* const it, int mode); -void VP8SetIntra4Mode(const VP8EncIterator* const it, const uint8_t* modes); -void VP8SetIntraUVMode(const VP8EncIterator* const it, int mode); -void VP8SetSkip(const VP8EncIterator* const it, int skip); -void VP8SetSegment(const VP8EncIterator* const it, int segment); - -//------------------------------------------------------------------------------ -// Paginated token buffer - -typedef struct VP8Tokens VP8Tokens; // struct details in token.c - -typedef struct { -#if !defined(DISABLE_TOKEN_BUFFER) - VP8Tokens* pages_; // first page - VP8Tokens** last_page_; // last page - uint16_t* tokens_; // set to (*last_page_)->tokens_ - int left_; // how many free tokens left before the page is full - int page_size_; // number of tokens per page -#endif - int error_; // true in case of malloc error -} VP8TBuffer; - -// initialize an empty buffer -void VP8TBufferInit(VP8TBuffer* const b, int page_size); -void VP8TBufferClear(VP8TBuffer* const b); // de-allocate pages memory - -#if !defined(DISABLE_TOKEN_BUFFER) - -// Finalizes bitstream when probabilities are known. -// Deletes the allocated token memory if final_pass is true. -int VP8EmitTokens(VP8TBuffer* const b, VP8BitWriter* const bw, - const uint8_t* const probas, int final_pass); - -// record the coding of coefficients without knowing the probabilities yet -int VP8RecordCoeffTokens(const int ctx, const int coeff_type, - int first, int last, - const int16_t* const coeffs, - VP8TBuffer* const tokens); - -// Estimate the final coded size given a set of 'probas'. -size_t VP8EstimateTokenSize(VP8TBuffer* const b, const uint8_t* const probas); - -// unused for now -void VP8TokenToStats(const VP8TBuffer* const b, proba_t* const stats); - -#endif // !DISABLE_TOKEN_BUFFER - -//------------------------------------------------------------------------------ -// VP8Encoder - -struct VP8Encoder { - const WebPConfig* config_; // user configuration and parameters - WebPPicture* pic_; // input / output picture - - // headers - VP8EncFilterHeader filter_hdr_; // filtering information - VP8EncSegmentHeader segment_hdr_; // segment information - - int profile_; // VP8's profile, deduced from Config. - - // dimension, in macroblock units. - int mb_w_, mb_h_; - int preds_w_; // stride of the *preds_ prediction plane (=4*mb_w + 1) - - // number of partitions (1, 2, 4 or 8 = MAX_NUM_PARTITIONS) - int num_parts_; - - // per-partition boolean decoders. - VP8BitWriter bw_; // part0 - VP8BitWriter parts_[MAX_NUM_PARTITIONS]; // token partitions - VP8TBuffer tokens_; // token buffer - - int percent_; // for progress - - // transparency blob - int has_alpha_; - uint8_t* alpha_data_; // non-NULL if transparency is present - uint32_t alpha_data_size_; - WebPWorker alpha_worker_; - - // quantization info (one set of DC/AC dequant factor per segment) - VP8SegmentInfo dqm_[NUM_MB_SEGMENTS]; - int base_quant_; // nominal quantizer value. Only used - // for relative coding of segments' quant. - int alpha_; // global susceptibility (<=> complexity) - int uv_alpha_; // U/V quantization susceptibility - // global offset of quantizers, shared by all segments - int dq_y1_dc_; - int dq_y2_dc_, dq_y2_ac_; - int dq_uv_dc_, dq_uv_ac_; - - // probabilities and statistics - VP8EncProba proba_; - uint64_t sse_[4]; // sum of Y/U/V/A squared errors for all macroblocks - uint64_t sse_count_; // pixel count for the sse_[] stats - int coded_size_; - int residual_bytes_[3][4]; - int block_count_[3]; - - // quality/speed settings - int method_; // 0=fastest, 6=best/slowest. - VP8RDLevel rd_opt_level_; // Deduced from method_. - int max_i4_header_bits_; // partition #0 safeness factor - int mb_header_limit_; // rough limit for header bits per MB - int thread_level_; // derived from config->thread_level - int do_search_; // derived from config->target_XXX - int use_tokens_; // if true, use token buffer - - // Memory - VP8MBInfo* mb_info_; // contextual macroblock infos (mb_w_ + 1) - uint8_t* preds_; // predictions modes: (4*mb_w+1) * (4*mb_h+1) - uint32_t* nz_; // non-zero bit context: mb_w+1 - uint8_t* y_top_; // top luma samples. - uint8_t* uv_top_; // top u/v samples. - // U and V are packed into 16 bytes (8 U + 8 V) - LFStats* lf_stats_; // autofilter stats (if NULL, autofilter is off) -}; - -//------------------------------------------------------------------------------ -// internal functions. Not public. - - // in tree.c -extern const uint8_t VP8CoeffsProba0[NUM_TYPES][NUM_BANDS][NUM_CTX][NUM_PROBAS]; -extern const uint8_t - VP8CoeffsUpdateProba[NUM_TYPES][NUM_BANDS][NUM_CTX][NUM_PROBAS]; -// Reset the token probabilities to their initial (default) values -void VP8DefaultProbas(VP8Encoder* const enc); -// Write the token probabilities -void VP8WriteProbas(VP8BitWriter* const bw, const VP8EncProba* const probas); -// Writes the partition #0 modes (that is: all intra modes) -void VP8CodeIntraModes(VP8Encoder* const enc); - - // in syntax.c -// Generates the final bitstream by coding the partition0 and headers, -// and appending an assembly of all the pre-coded token partitions. -// Return true if everything is ok. -int VP8EncWrite(VP8Encoder* const enc); -// Release memory allocated for bit-writing in VP8EncLoop & seq. -void VP8EncFreeBitWriters(VP8Encoder* const enc); - - // in frame.c -extern const uint8_t VP8Cat3[]; -extern const uint8_t VP8Cat4[]; -extern const uint8_t VP8Cat5[]; -extern const uint8_t VP8Cat6[]; - -// Form all the four Intra16x16 predictions in the yuv_p_ cache -void VP8MakeLuma16Preds(const VP8EncIterator* const it); -// Form all the four Chroma8x8 predictions in the yuv_p_ cache -void VP8MakeChroma8Preds(const VP8EncIterator* const it); -// Form all the ten Intra4x4 predictions in the yuv_p_ cache -// for the 4x4 block it->i4_ -void VP8MakeIntra4Preds(const VP8EncIterator* const it); -// Rate calculation -int VP8GetCostLuma16(VP8EncIterator* const it, const VP8ModeScore* const rd); -int VP8GetCostLuma4(VP8EncIterator* const it, const int16_t levels[16]); -int VP8GetCostUV(VP8EncIterator* const it, const VP8ModeScore* const rd); -// Main coding calls -int VP8EncLoop(VP8Encoder* const enc); -int VP8EncTokenLoop(VP8Encoder* const enc); - - // in webpenc.c -// Assign an error code to a picture. Return false for convenience. -int WebPEncodingSetError(const WebPPicture* const pic, WebPEncodingError error); -int WebPReportProgress(const WebPPicture* const pic, - int percent, int* const percent_store); - - // in analysis.c -// Main analysis loop. Decides the segmentations and complexity. -// Assigns a first guess for Intra16 and uvmode_ prediction modes. -int VP8EncAnalyze(VP8Encoder* const enc); - - // in quant.c -// Sets up segment's quantization values, base_quant_ and filter strengths. -void VP8SetSegmentParams(VP8Encoder* const enc, float quality); -// Pick best modes and fills the levels. Returns true if skipped. -int VP8Decimate(VP8EncIterator* const it, VP8ModeScore* const rd, - VP8RDLevel rd_opt); - - // in alpha.c -void VP8EncInitAlpha(VP8Encoder* const enc); // initialize alpha compression -int VP8EncStartAlpha(VP8Encoder* const enc); // start alpha coding process -int VP8EncFinishAlpha(VP8Encoder* const enc); // finalize compressed data -int VP8EncDeleteAlpha(VP8Encoder* const enc); // delete compressed data - - // in filter.c -void VP8SSIMAddStats(const VP8DistoStats* const src, VP8DistoStats* const dst); -void VP8SSIMAccumulatePlane(const uint8_t* src1, int stride1, - const uint8_t* src2, int stride2, - int W, int H, VP8DistoStats* const stats); -double VP8SSIMGet(const VP8DistoStats* const stats); -double VP8SSIMGetSquaredError(const VP8DistoStats* const stats); - -// autofilter -void VP8InitFilter(VP8EncIterator* const it); -void VP8StoreFilterStats(VP8EncIterator* const it); -void VP8AdjustFilterStrength(VP8EncIterator* const it); - -// returns the approximate filtering strength needed to smooth a edge -// step of 'delta', given a sharpness parameter 'sharpness'. -int VP8FilterStrengthFromDelta(int sharpness, int delta); - - // misc utils for picture_*.c: - -// Remove reference to the ARGB/YUVA buffer (doesn't free anything). -void WebPPictureResetBuffers(WebPPicture* const picture); - -// Allocates ARGB buffer of given dimension (previous one is always free'd). -// Preserves the YUV(A) buffer. Returns false in case of error (invalid param, -// out-of-memory). -int WebPPictureAllocARGB(WebPPicture* const picture, int width, int height); - -// Allocates YUVA buffer of given dimension (previous one is always free'd). -// Uses picture->csp to determine whether an alpha buffer is needed. -// Preserves the ARGB buffer. -// Returns false in case of error (invalid param, out-of-memory). -int WebPPictureAllocYUVA(WebPPicture* const picture, int width, int height); - -// Clean-up the RGB samples under fully transparent area, to help lossless -// compressibility (no guarantee, though). Assumes that pic->use_argb is true. -void WebPCleanupTransparentAreaLossless(WebPPicture* const pic); - - // in near_lossless.c -// Near lossless preprocessing in RGB color-space. -int VP8ApplyNearLossless(int xsize, int ysize, uint32_t* argb, int quality); -// Near lossless adjustment for predictors. -void VP8ApplyNearLosslessPredict(int xsize, int ysize, int pred_bits, - const uint32_t* argb_orig, - uint32_t* argb, uint32_t* argb_scratch, - const uint32_t* const transform_data, - int quality, int subtract_green); -//------------------------------------------------------------------------------ - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_ENC_VP8ENCI_H_ */ diff --git a/drivers/webp/enc/vp8l.c b/drivers/webp/enc/vp8l.c deleted file mode 100644 index 1f2d41ea91..0000000000 --- a/drivers/webp/enc/vp8l.c +++ /dev/null @@ -1,1603 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// main entry for the lossless encoder. -// -// Author: Vikas Arora (vikaas.arora@gmail.com) -// - -#include <assert.h> -#include <stdlib.h> - -#include "./backward_references.h" -#include "./histogram.h" -#include "./vp8enci.h" -#include "./vp8li.h" -#include "../dsp/lossless.h" -#include "../utils/bit_writer.h" -#include "../utils/huffman_encode.h" -#include "../utils/utils.h" -#include "webp/format_constants.h" - -#include "./delta_palettization.h" - -#define PALETTE_KEY_RIGHT_SHIFT 22 // Key for 1K buffer. -// Maximum number of histogram images (sub-blocks). -#define MAX_HUFF_IMAGE_SIZE 2600 - -// Palette reordering for smaller sum of deltas (and for smaller storage). - -static int PaletteCompareColorsForQsort(const void* p1, const void* p2) { - const uint32_t a = WebPMemToUint32(p1); - const uint32_t b = WebPMemToUint32(p2); - assert(a != b); - return (a < b) ? -1 : 1; -} - -static WEBP_INLINE uint32_t PaletteComponentDistance(uint32_t v) { - return (v <= 128) ? v : (256 - v); -} - -// Computes a value that is related to the entropy created by the -// palette entry diff. -// -// Note that the last & 0xff is a no-operation in the next statement, but -// removed by most compilers and is here only for regularity of the code. -static WEBP_INLINE uint32_t PaletteColorDistance(uint32_t col1, uint32_t col2) { - const uint32_t diff = VP8LSubPixels(col1, col2); - const int kMoreWeightForRGBThanForAlpha = 9; - uint32_t score; - score = PaletteComponentDistance((diff >> 0) & 0xff); - score += PaletteComponentDistance((diff >> 8) & 0xff); - score += PaletteComponentDistance((diff >> 16) & 0xff); - score *= kMoreWeightForRGBThanForAlpha; - score += PaletteComponentDistance((diff >> 24) & 0xff); - return score; -} - -static WEBP_INLINE void SwapColor(uint32_t* const col1, uint32_t* const col2) { - const uint32_t tmp = *col1; - *col1 = *col2; - *col2 = tmp; -} - -static void GreedyMinimizeDeltas(uint32_t palette[], int num_colors) { - // Find greedily always the closest color of the predicted color to minimize - // deltas in the palette. This reduces storage needs since the - // palette is stored with delta encoding. - uint32_t predict = 0x00000000; - int i, k; - for (i = 0; i < num_colors; ++i) { - int best_ix = i; - uint32_t best_score = ~0U; - for (k = i; k < num_colors; ++k) { - const uint32_t cur_score = PaletteColorDistance(palette[k], predict); - if (best_score > cur_score) { - best_score = cur_score; - best_ix = k; - } - } - SwapColor(&palette[best_ix], &palette[i]); - predict = palette[i]; - } -} - -// The palette has been sorted by alpha. This function checks if the other -// components of the palette have a monotonic development with regards to -// position in the palette. If all have monotonic development, there is -// no benefit to re-organize them greedily. A monotonic development -// would be spotted in green-only situations (like lossy alpha) or gray-scale -// images. -static int PaletteHasNonMonotonousDeltas(uint32_t palette[], int num_colors) { - uint32_t predict = 0x000000; - int i; - uint8_t sign_found = 0x00; - for (i = 0; i < num_colors; ++i) { - const uint32_t diff = VP8LSubPixels(palette[i], predict); - const uint8_t rd = (diff >> 16) & 0xff; - const uint8_t gd = (diff >> 8) & 0xff; - const uint8_t bd = (diff >> 0) & 0xff; - if (rd != 0x00) { - sign_found |= (rd < 0x80) ? 1 : 2; - } - if (gd != 0x00) { - sign_found |= (gd < 0x80) ? 8 : 16; - } - if (bd != 0x00) { - sign_found |= (bd < 0x80) ? 64 : 128; - } - predict = palette[i]; - } - return (sign_found & (sign_found << 1)) != 0; // two consequent signs. -} - -// ----------------------------------------------------------------------------- -// Palette - -// If number of colors in the image is less than or equal to MAX_PALETTE_SIZE, -// creates a palette and returns true, else returns false. -static int AnalyzeAndCreatePalette(const WebPPicture* const pic, - int low_effort, - uint32_t palette[MAX_PALETTE_SIZE], - int* const palette_size) { - const int num_colors = WebPGetColorPalette(pic, palette); - if (num_colors > MAX_PALETTE_SIZE) return 0; - *palette_size = num_colors; - qsort(palette, num_colors, sizeof(*palette), PaletteCompareColorsForQsort); - if (!low_effort && PaletteHasNonMonotonousDeltas(palette, num_colors)) { - GreedyMinimizeDeltas(palette, num_colors); - } - return 1; -} - -// These five modes are evaluated and their respective entropy is computed. -typedef enum { - kDirect = 0, - kSpatial = 1, - kSubGreen = 2, - kSpatialSubGreen = 3, - kPalette = 4, - kNumEntropyIx = 5 -} EntropyIx; - -typedef enum { - kHistoAlpha = 0, - kHistoAlphaPred, - kHistoGreen, - kHistoGreenPred, - kHistoRed, - kHistoRedPred, - kHistoBlue, - kHistoBluePred, - kHistoRedSubGreen, - kHistoRedPredSubGreen, - kHistoBlueSubGreen, - kHistoBluePredSubGreen, - kHistoPalette, - kHistoTotal // Must be last. -} HistoIx; - -static void AddSingleSubGreen(uint32_t p, uint32_t* r, uint32_t* b) { - const uint32_t green = p >> 8; // The upper bits are masked away later. - ++r[((p >> 16) - green) & 0xff]; - ++b[(p - green) & 0xff]; -} - -static void AddSingle(uint32_t p, - uint32_t* a, uint32_t* r, uint32_t* g, uint32_t* b) { - ++a[p >> 24]; - ++r[(p >> 16) & 0xff]; - ++g[(p >> 8) & 0xff]; - ++b[(p & 0xff)]; -} - -static int AnalyzeEntropy(const uint32_t* argb, - int width, int height, int argb_stride, - int use_palette, - EntropyIx* const min_entropy_ix, - int* const red_and_blue_always_zero) { - // Allocate histogram set with cache_bits = 0. - uint32_t* const histo = - (uint32_t*)WebPSafeCalloc(kHistoTotal, sizeof(*histo) * 256); - if (histo != NULL) { - int i, x, y; - const uint32_t* prev_row = argb; - const uint32_t* curr_row = argb + argb_stride; - for (y = 1; y < height; ++y) { - uint32_t prev_pix = curr_row[0]; - for (x = 1; x < width; ++x) { - const uint32_t pix = curr_row[x]; - const uint32_t pix_diff = VP8LSubPixels(pix, prev_pix); - if ((pix_diff == 0) || (pix == prev_row[x])) continue; - prev_pix = pix; - AddSingle(pix, - &histo[kHistoAlpha * 256], - &histo[kHistoRed * 256], - &histo[kHistoGreen * 256], - &histo[kHistoBlue * 256]); - AddSingle(pix_diff, - &histo[kHistoAlphaPred * 256], - &histo[kHistoRedPred * 256], - &histo[kHistoGreenPred * 256], - &histo[kHistoBluePred * 256]); - AddSingleSubGreen(pix, - &histo[kHistoRedSubGreen * 256], - &histo[kHistoBlueSubGreen * 256]); - AddSingleSubGreen(pix_diff, - &histo[kHistoRedPredSubGreen * 256], - &histo[kHistoBluePredSubGreen * 256]); - { - // Approximate the palette by the entropy of the multiplicative hash. - const int hash = ((pix + (pix >> 19)) * 0x39c5fba7) >> 24; - ++histo[kHistoPalette * 256 + (hash & 0xff)]; - } - } - prev_row = curr_row; - curr_row += argb_stride; - } - { - double entropy_comp[kHistoTotal]; - double entropy[kNumEntropyIx]; - EntropyIx k; - EntropyIx last_mode_to_analyze = - use_palette ? kPalette : kSpatialSubGreen; - int j; - // Let's add one zero to the predicted histograms. The zeros are removed - // too efficiently by the pix_diff == 0 comparison, at least one of the - // zeros is likely to exist. - ++histo[kHistoRedPredSubGreen * 256]; - ++histo[kHistoBluePredSubGreen * 256]; - ++histo[kHistoRedPred * 256]; - ++histo[kHistoGreenPred * 256]; - ++histo[kHistoBluePred * 256]; - ++histo[kHistoAlphaPred * 256]; - - for (j = 0; j < kHistoTotal; ++j) { - entropy_comp[j] = VP8LBitsEntropy(&histo[j * 256], 256, NULL); - } - entropy[kDirect] = entropy_comp[kHistoAlpha] + - entropy_comp[kHistoRed] + - entropy_comp[kHistoGreen] + - entropy_comp[kHistoBlue]; - entropy[kSpatial] = entropy_comp[kHistoAlphaPred] + - entropy_comp[kHistoRedPred] + - entropy_comp[kHistoGreenPred] + - entropy_comp[kHistoBluePred]; - entropy[kSubGreen] = entropy_comp[kHistoAlpha] + - entropy_comp[kHistoRedSubGreen] + - entropy_comp[kHistoGreen] + - entropy_comp[kHistoBlueSubGreen]; - entropy[kSpatialSubGreen] = entropy_comp[kHistoAlphaPred] + - entropy_comp[kHistoRedPredSubGreen] + - entropy_comp[kHistoGreenPred] + - entropy_comp[kHistoBluePredSubGreen]; - // Palette mode seems more efficient in a breakeven case. Bias with 1.0. - entropy[kPalette] = entropy_comp[kHistoPalette] - 1.0; - - *min_entropy_ix = kDirect; - for (k = kDirect + 1; k <= last_mode_to_analyze; ++k) { - if (entropy[*min_entropy_ix] > entropy[k]) { - *min_entropy_ix = k; - } - } - *red_and_blue_always_zero = 1; - // Let's check if the histogram of the chosen entropy mode has - // non-zero red and blue values. If all are zero, we can later skip - // the cross color optimization. - { - static const uint8_t kHistoPairs[5][2] = { - { kHistoRed, kHistoBlue }, - { kHistoRedPred, kHistoBluePred }, - { kHistoRedSubGreen, kHistoBlueSubGreen }, - { kHistoRedPredSubGreen, kHistoBluePredSubGreen }, - { kHistoRed, kHistoBlue } - }; - const uint32_t* const red_histo = - &histo[256 * kHistoPairs[*min_entropy_ix][0]]; - const uint32_t* const blue_histo = - &histo[256 * kHistoPairs[*min_entropy_ix][1]]; - for (i = 1; i < 256; ++i) { - if ((red_histo[i] | blue_histo[i]) != 0) { - *red_and_blue_always_zero = 0; - break; - } - } - } - } - WebPSafeFree(histo); - return 1; - } else { - return 0; - } -} - -static int GetHistoBits(int method, int use_palette, int width, int height) { - // Make tile size a function of encoding method (Range: 0 to 6). - int histo_bits = (use_palette ? 9 : 7) - method; - while (1) { - const int huff_image_size = VP8LSubSampleSize(width, histo_bits) * - VP8LSubSampleSize(height, histo_bits); - if (huff_image_size <= MAX_HUFF_IMAGE_SIZE) break; - ++histo_bits; - } - return (histo_bits < MIN_HUFFMAN_BITS) ? MIN_HUFFMAN_BITS : - (histo_bits > MAX_HUFFMAN_BITS) ? MAX_HUFFMAN_BITS : histo_bits; -} - -static int GetTransformBits(int method, int histo_bits) { - const int max_transform_bits = (method < 4) ? 6 : (method > 4) ? 4 : 5; - return (histo_bits > max_transform_bits) ? max_transform_bits : histo_bits; -} - -static int AnalyzeAndInit(VP8LEncoder* const enc) { - const WebPPicture* const pic = enc->pic_; - const int width = pic->width; - const int height = pic->height; - const int pix_cnt = width * height; - const WebPConfig* const config = enc->config_; - const int method = config->method; - const int low_effort = (config->method == 0); - // we round the block size up, so we're guaranteed to have - // at max MAX_REFS_BLOCK_PER_IMAGE blocks used: - int refs_block_size = (pix_cnt - 1) / MAX_REFS_BLOCK_PER_IMAGE + 1; - assert(pic != NULL && pic->argb != NULL); - - enc->use_cross_color_ = 0; - enc->use_predict_ = 0; - enc->use_subtract_green_ = 0; - enc->use_palette_ = - AnalyzeAndCreatePalette(pic, low_effort, - enc->palette_, &enc->palette_size_); - - // TODO(jyrki): replace the decision to be based on an actual estimate - // of entropy, or even spatial variance of entropy. - enc->histo_bits_ = GetHistoBits(method, enc->use_palette_, - pic->width, pic->height); - enc->transform_bits_ = GetTransformBits(method, enc->histo_bits_); - - if (low_effort) { - // AnalyzeEntropy is somewhat slow. - enc->use_predict_ = !enc->use_palette_; - enc->use_subtract_green_ = !enc->use_palette_; - enc->use_cross_color_ = 0; - } else { - int red_and_blue_always_zero; - EntropyIx min_entropy_ix; - if (!AnalyzeEntropy(pic->argb, width, height, pic->argb_stride, - enc->use_palette_, &min_entropy_ix, - &red_and_blue_always_zero)) { - return 0; - } - enc->use_palette_ = (min_entropy_ix == kPalette); - enc->use_subtract_green_ = - (min_entropy_ix == kSubGreen) || (min_entropy_ix == kSpatialSubGreen); - enc->use_predict_ = - (min_entropy_ix == kSpatial) || (min_entropy_ix == kSpatialSubGreen); - enc->use_cross_color_ = red_and_blue_always_zero ? 0 : enc->use_predict_; - } - - if (!VP8LHashChainInit(&enc->hash_chain_, pix_cnt)) return 0; - - // palette-friendly input typically uses less literals - // -> reduce block size a bit - if (enc->use_palette_) refs_block_size /= 2; - VP8LBackwardRefsInit(&enc->refs_[0], refs_block_size); - VP8LBackwardRefsInit(&enc->refs_[1], refs_block_size); - - return 1; -} - -// Returns false in case of memory error. -static int GetHuffBitLengthsAndCodes( - const VP8LHistogramSet* const histogram_image, - HuffmanTreeCode* const huffman_codes) { - int i, k; - int ok = 0; - uint64_t total_length_size = 0; - uint8_t* mem_buf = NULL; - const int histogram_image_size = histogram_image->size; - int max_num_symbols = 0; - uint8_t* buf_rle = NULL; - HuffmanTree* huff_tree = NULL; - - // Iterate over all histograms and get the aggregate number of codes used. - for (i = 0; i < histogram_image_size; ++i) { - const VP8LHistogram* const histo = histogram_image->histograms[i]; - HuffmanTreeCode* const codes = &huffman_codes[5 * i]; - for (k = 0; k < 5; ++k) { - const int num_symbols = - (k == 0) ? VP8LHistogramNumCodes(histo->palette_code_bits_) : - (k == 4) ? NUM_DISTANCE_CODES : 256; - codes[k].num_symbols = num_symbols; - total_length_size += num_symbols; - } - } - - // Allocate and Set Huffman codes. - { - uint16_t* codes; - uint8_t* lengths; - mem_buf = (uint8_t*)WebPSafeCalloc(total_length_size, - sizeof(*lengths) + sizeof(*codes)); - if (mem_buf == NULL) goto End; - - codes = (uint16_t*)mem_buf; - lengths = (uint8_t*)&codes[total_length_size]; - for (i = 0; i < 5 * histogram_image_size; ++i) { - const int bit_length = huffman_codes[i].num_symbols; - huffman_codes[i].codes = codes; - huffman_codes[i].code_lengths = lengths; - codes += bit_length; - lengths += bit_length; - if (max_num_symbols < bit_length) { - max_num_symbols = bit_length; - } - } - } - - buf_rle = (uint8_t*)WebPSafeMalloc(1ULL, max_num_symbols); - huff_tree = (HuffmanTree*)WebPSafeMalloc(3ULL * max_num_symbols, - sizeof(*huff_tree)); - if (buf_rle == NULL || huff_tree == NULL) goto End; - - // Create Huffman trees. - for (i = 0; i < histogram_image_size; ++i) { - HuffmanTreeCode* const codes = &huffman_codes[5 * i]; - VP8LHistogram* const histo = histogram_image->histograms[i]; - VP8LCreateHuffmanTree(histo->literal_, 15, buf_rle, huff_tree, codes + 0); - VP8LCreateHuffmanTree(histo->red_, 15, buf_rle, huff_tree, codes + 1); - VP8LCreateHuffmanTree(histo->blue_, 15, buf_rle, huff_tree, codes + 2); - VP8LCreateHuffmanTree(histo->alpha_, 15, buf_rle, huff_tree, codes + 3); - VP8LCreateHuffmanTree(histo->distance_, 15, buf_rle, huff_tree, codes + 4); - } - ok = 1; - End: - WebPSafeFree(huff_tree); - WebPSafeFree(buf_rle); - if (!ok) { - WebPSafeFree(mem_buf); - memset(huffman_codes, 0, 5 * histogram_image_size * sizeof(*huffman_codes)); - } - return ok; -} - -static void StoreHuffmanTreeOfHuffmanTreeToBitMask( - VP8LBitWriter* const bw, const uint8_t* code_length_bitdepth) { - // RFC 1951 will calm you down if you are worried about this funny sequence. - // This sequence is tuned from that, but more weighted for lower symbol count, - // and more spiking histograms. - static const uint8_t kStorageOrder[CODE_LENGTH_CODES] = { - 17, 18, 0, 1, 2, 3, 4, 5, 16, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 - }; - int i; - // Throw away trailing zeros: - int codes_to_store = CODE_LENGTH_CODES; - for (; codes_to_store > 4; --codes_to_store) { - if (code_length_bitdepth[kStorageOrder[codes_to_store - 1]] != 0) { - break; - } - } - VP8LPutBits(bw, codes_to_store - 4, 4); - for (i = 0; i < codes_to_store; ++i) { - VP8LPutBits(bw, code_length_bitdepth[kStorageOrder[i]], 3); - } -} - -static void ClearHuffmanTreeIfOnlyOneSymbol( - HuffmanTreeCode* const huffman_code) { - int k; - int count = 0; - for (k = 0; k < huffman_code->num_symbols; ++k) { - if (huffman_code->code_lengths[k] != 0) { - ++count; - if (count > 1) return; - } - } - for (k = 0; k < huffman_code->num_symbols; ++k) { - huffman_code->code_lengths[k] = 0; - huffman_code->codes[k] = 0; - } -} - -static void StoreHuffmanTreeToBitMask( - VP8LBitWriter* const bw, - const HuffmanTreeToken* const tokens, const int num_tokens, - const HuffmanTreeCode* const huffman_code) { - int i; - for (i = 0; i < num_tokens; ++i) { - const int ix = tokens[i].code; - const int extra_bits = tokens[i].extra_bits; - VP8LPutBits(bw, huffman_code->codes[ix], huffman_code->code_lengths[ix]); - switch (ix) { - case 16: - VP8LPutBits(bw, extra_bits, 2); - break; - case 17: - VP8LPutBits(bw, extra_bits, 3); - break; - case 18: - VP8LPutBits(bw, extra_bits, 7); - break; - } - } -} - -// 'huff_tree' and 'tokens' are pre-alloacted buffers. -static void StoreFullHuffmanCode(VP8LBitWriter* const bw, - HuffmanTree* const huff_tree, - HuffmanTreeToken* const tokens, - const HuffmanTreeCode* const tree) { - uint8_t code_length_bitdepth[CODE_LENGTH_CODES] = { 0 }; - uint16_t code_length_bitdepth_symbols[CODE_LENGTH_CODES] = { 0 }; - const int max_tokens = tree->num_symbols; - int num_tokens; - HuffmanTreeCode huffman_code; - huffman_code.num_symbols = CODE_LENGTH_CODES; - huffman_code.code_lengths = code_length_bitdepth; - huffman_code.codes = code_length_bitdepth_symbols; - - VP8LPutBits(bw, 0, 1); - num_tokens = VP8LCreateCompressedHuffmanTree(tree, tokens, max_tokens); - { - uint32_t histogram[CODE_LENGTH_CODES] = { 0 }; - uint8_t buf_rle[CODE_LENGTH_CODES] = { 0 }; - int i; - for (i = 0; i < num_tokens; ++i) { - ++histogram[tokens[i].code]; - } - - VP8LCreateHuffmanTree(histogram, 7, buf_rle, huff_tree, &huffman_code); - } - - StoreHuffmanTreeOfHuffmanTreeToBitMask(bw, code_length_bitdepth); - ClearHuffmanTreeIfOnlyOneSymbol(&huffman_code); - { - int trailing_zero_bits = 0; - int trimmed_length = num_tokens; - int write_trimmed_length; - int length; - int i = num_tokens; - while (i-- > 0) { - const int ix = tokens[i].code; - if (ix == 0 || ix == 17 || ix == 18) { - --trimmed_length; // discount trailing zeros - trailing_zero_bits += code_length_bitdepth[ix]; - if (ix == 17) { - trailing_zero_bits += 3; - } else if (ix == 18) { - trailing_zero_bits += 7; - } - } else { - break; - } - } - write_trimmed_length = (trimmed_length > 1 && trailing_zero_bits > 12); - length = write_trimmed_length ? trimmed_length : num_tokens; - VP8LPutBits(bw, write_trimmed_length, 1); - if (write_trimmed_length) { - const int nbits = VP8LBitsLog2Ceiling(trimmed_length - 1); - const int nbitpairs = (nbits == 0) ? 1 : (nbits + 1) / 2; - VP8LPutBits(bw, nbitpairs - 1, 3); - assert(trimmed_length >= 2); - VP8LPutBits(bw, trimmed_length - 2, nbitpairs * 2); - } - StoreHuffmanTreeToBitMask(bw, tokens, length, &huffman_code); - } -} - -// 'huff_tree' and 'tokens' are pre-alloacted buffers. -static void StoreHuffmanCode(VP8LBitWriter* const bw, - HuffmanTree* const huff_tree, - HuffmanTreeToken* const tokens, - const HuffmanTreeCode* const huffman_code) { - int i; - int count = 0; - int symbols[2] = { 0, 0 }; - const int kMaxBits = 8; - const int kMaxSymbol = 1 << kMaxBits; - - // Check whether it's a small tree. - for (i = 0; i < huffman_code->num_symbols && count < 3; ++i) { - if (huffman_code->code_lengths[i] != 0) { - if (count < 2) symbols[count] = i; - ++count; - } - } - - if (count == 0) { // emit minimal tree for empty cases - // bits: small tree marker: 1, count-1: 0, large 8-bit code: 0, code: 0 - VP8LPutBits(bw, 0x01, 4); - } else if (count <= 2 && symbols[0] < kMaxSymbol && symbols[1] < kMaxSymbol) { - VP8LPutBits(bw, 1, 1); // Small tree marker to encode 1 or 2 symbols. - VP8LPutBits(bw, count - 1, 1); - if (symbols[0] <= 1) { - VP8LPutBits(bw, 0, 1); // Code bit for small (1 bit) symbol value. - VP8LPutBits(bw, symbols[0], 1); - } else { - VP8LPutBits(bw, 1, 1); - VP8LPutBits(bw, symbols[0], 8); - } - if (count == 2) { - VP8LPutBits(bw, symbols[1], 8); - } - } else { - StoreFullHuffmanCode(bw, huff_tree, tokens, huffman_code); - } -} - -static WEBP_INLINE void WriteHuffmanCode(VP8LBitWriter* const bw, - const HuffmanTreeCode* const code, - int code_index) { - const int depth = code->code_lengths[code_index]; - const int symbol = code->codes[code_index]; - VP8LPutBits(bw, symbol, depth); -} - -static WEBP_INLINE void WriteHuffmanCodeWithExtraBits( - VP8LBitWriter* const bw, - const HuffmanTreeCode* const code, - int code_index, - int bits, - int n_bits) { - const int depth = code->code_lengths[code_index]; - const int symbol = code->codes[code_index]; - VP8LPutBits(bw, (bits << depth) | symbol, depth + n_bits); -} - -static WebPEncodingError StoreImageToBitMask( - VP8LBitWriter* const bw, int width, int histo_bits, - VP8LBackwardRefs* const refs, - const uint16_t* histogram_symbols, - const HuffmanTreeCode* const huffman_codes) { - const int histo_xsize = histo_bits ? VP8LSubSampleSize(width, histo_bits) : 1; - const int tile_mask = (histo_bits == 0) ? 0 : -(1 << histo_bits); - // x and y trace the position in the image. - int x = 0; - int y = 0; - int tile_x = x & tile_mask; - int tile_y = y & tile_mask; - int histogram_ix = histogram_symbols[0]; - const HuffmanTreeCode* codes = huffman_codes + 5 * histogram_ix; - VP8LRefsCursor c = VP8LRefsCursorInit(refs); - while (VP8LRefsCursorOk(&c)) { - const PixOrCopy* const v = c.cur_pos; - if ((tile_x != (x & tile_mask)) || (tile_y != (y & tile_mask))) { - tile_x = x & tile_mask; - tile_y = y & tile_mask; - histogram_ix = histogram_symbols[(y >> histo_bits) * histo_xsize + - (x >> histo_bits)]; - codes = huffman_codes + 5 * histogram_ix; - } - if (PixOrCopyIsLiteral(v)) { - static const int order[] = { 1, 2, 0, 3 }; - int k; - for (k = 0; k < 4; ++k) { - const int code = PixOrCopyLiteral(v, order[k]); - WriteHuffmanCode(bw, codes + k, code); - } - } else if (PixOrCopyIsCacheIdx(v)) { - const int code = PixOrCopyCacheIdx(v); - const int literal_ix = 256 + NUM_LENGTH_CODES + code; - WriteHuffmanCode(bw, codes, literal_ix); - } else { - int bits, n_bits; - int code; - - const int distance = PixOrCopyDistance(v); - VP8LPrefixEncode(v->len, &code, &n_bits, &bits); - WriteHuffmanCodeWithExtraBits(bw, codes, 256 + code, bits, n_bits); - - // Don't write the distance with the extra bits code since - // the distance can be up to 18 bits of extra bits, and the prefix - // 15 bits, totaling to 33, and our PutBits only supports up to 32 bits. - // TODO(jyrki): optimize this further. - VP8LPrefixEncode(distance, &code, &n_bits, &bits); - WriteHuffmanCode(bw, codes + 4, code); - VP8LPutBits(bw, bits, n_bits); - } - x += PixOrCopyLength(v); - while (x >= width) { - x -= width; - ++y; - } - VP8LRefsCursorNext(&c); - } - return bw->error_ ? VP8_ENC_ERROR_OUT_OF_MEMORY : VP8_ENC_OK; -} - -// Special case of EncodeImageInternal() for cache-bits=0, histo_bits=31 -static WebPEncodingError EncodeImageNoHuffman(VP8LBitWriter* const bw, - const uint32_t* const argb, - VP8LHashChain* const hash_chain, - VP8LBackwardRefs refs_array[2], - int width, int height, - int quality) { - int i; - int max_tokens = 0; - WebPEncodingError err = VP8_ENC_OK; - VP8LBackwardRefs* refs; - HuffmanTreeToken* tokens = NULL; - HuffmanTreeCode huffman_codes[5] = { { 0, NULL, NULL } }; - const uint16_t histogram_symbols[1] = { 0 }; // only one tree, one symbol - int cache_bits = 0; - VP8LHistogramSet* histogram_image = NULL; - HuffmanTree* const huff_tree = (HuffmanTree*)WebPSafeMalloc( - 3ULL * CODE_LENGTH_CODES, sizeof(*huff_tree)); - if (huff_tree == NULL) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - - // Calculate backward references from ARGB image. - if (VP8LHashChainFill(hash_chain, quality, argb, width, height) == 0) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - refs = VP8LGetBackwardReferences(width, height, argb, quality, 0, &cache_bits, - hash_chain, refs_array); - if (refs == NULL) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - histogram_image = VP8LAllocateHistogramSet(1, cache_bits); - if (histogram_image == NULL) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - - // Build histogram image and symbols from backward references. - VP8LHistogramStoreRefs(refs, histogram_image->histograms[0]); - - // Create Huffman bit lengths and codes for each histogram image. - assert(histogram_image->size == 1); - if (!GetHuffBitLengthsAndCodes(histogram_image, huffman_codes)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - - // No color cache, no Huffman image. - VP8LPutBits(bw, 0, 1); - - // Find maximum number of symbols for the huffman tree-set. - for (i = 0; i < 5; ++i) { - HuffmanTreeCode* const codes = &huffman_codes[i]; - if (max_tokens < codes->num_symbols) { - max_tokens = codes->num_symbols; - } - } - - tokens = (HuffmanTreeToken*)WebPSafeMalloc(max_tokens, sizeof(*tokens)); - if (tokens == NULL) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - - // Store Huffman codes. - for (i = 0; i < 5; ++i) { - HuffmanTreeCode* const codes = &huffman_codes[i]; - StoreHuffmanCode(bw, huff_tree, tokens, codes); - ClearHuffmanTreeIfOnlyOneSymbol(codes); - } - - // Store actual literals. - err = StoreImageToBitMask(bw, width, 0, refs, histogram_symbols, - huffman_codes); - - Error: - WebPSafeFree(tokens); - WebPSafeFree(huff_tree); - VP8LFreeHistogramSet(histogram_image); - WebPSafeFree(huffman_codes[0].codes); - return err; -} - -static WebPEncodingError EncodeImageInternal(VP8LBitWriter* const bw, - const uint32_t* const argb, - VP8LHashChain* const hash_chain, - VP8LBackwardRefs refs_array[2], - int width, int height, int quality, - int low_effort, - int use_cache, int* cache_bits, - int histogram_bits, - size_t init_byte_position, - int* const hdr_size, - int* const data_size) { - WebPEncodingError err = VP8_ENC_OK; - const uint32_t histogram_image_xysize = - VP8LSubSampleSize(width, histogram_bits) * - VP8LSubSampleSize(height, histogram_bits); - VP8LHistogramSet* histogram_image = NULL; - VP8LHistogramSet* tmp_histos = NULL; - int histogram_image_size = 0; - size_t bit_array_size = 0; - HuffmanTree* huff_tree = NULL; - HuffmanTreeToken* tokens = NULL; - HuffmanTreeCode* huffman_codes = NULL; - VP8LBackwardRefs refs; - VP8LBackwardRefs* best_refs; - uint16_t* const histogram_symbols = - (uint16_t*)WebPSafeMalloc(histogram_image_xysize, - sizeof(*histogram_symbols)); - assert(histogram_bits >= MIN_HUFFMAN_BITS); - assert(histogram_bits <= MAX_HUFFMAN_BITS); - assert(hdr_size != NULL); - assert(data_size != NULL); - - VP8LBackwardRefsInit(&refs, refs_array[0].block_size_); - if (histogram_symbols == NULL) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - - *cache_bits = use_cache ? MAX_COLOR_CACHE_BITS : 0; - // 'best_refs' is the reference to the best backward refs and points to one - // of refs_array[0] or refs_array[1]. - // Calculate backward references from ARGB image. - if (VP8LHashChainFill(hash_chain, quality, argb, width, height) == 0) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - best_refs = VP8LGetBackwardReferences(width, height, argb, quality, - low_effort, cache_bits, hash_chain, - refs_array); - if (best_refs == NULL || !VP8LBackwardRefsCopy(best_refs, &refs)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - histogram_image = - VP8LAllocateHistogramSet(histogram_image_xysize, *cache_bits); - tmp_histos = VP8LAllocateHistogramSet(2, *cache_bits); - if (histogram_image == NULL || tmp_histos == NULL) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - - // Build histogram image and symbols from backward references. - if (!VP8LGetHistoImageSymbols(width, height, &refs, quality, low_effort, - histogram_bits, *cache_bits, histogram_image, - tmp_histos, histogram_symbols)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - // Create Huffman bit lengths and codes for each histogram image. - histogram_image_size = histogram_image->size; - bit_array_size = 5 * histogram_image_size; - huffman_codes = (HuffmanTreeCode*)WebPSafeCalloc(bit_array_size, - sizeof(*huffman_codes)); - // Note: some histogram_image entries may point to tmp_histos[], so the latter - // need to outlive the following call to GetHuffBitLengthsAndCodes(). - if (huffman_codes == NULL || - !GetHuffBitLengthsAndCodes(histogram_image, huffman_codes)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - // Free combined histograms. - VP8LFreeHistogramSet(histogram_image); - histogram_image = NULL; - - // Free scratch histograms. - VP8LFreeHistogramSet(tmp_histos); - tmp_histos = NULL; - - // Color Cache parameters. - if (*cache_bits > 0) { - VP8LPutBits(bw, 1, 1); - VP8LPutBits(bw, *cache_bits, 4); - } else { - VP8LPutBits(bw, 0, 1); - } - - // Huffman image + meta huffman. - { - const int write_histogram_image = (histogram_image_size > 1); - VP8LPutBits(bw, write_histogram_image, 1); - if (write_histogram_image) { - uint32_t* const histogram_argb = - (uint32_t*)WebPSafeMalloc(histogram_image_xysize, - sizeof(*histogram_argb)); - int max_index = 0; - uint32_t i; - if (histogram_argb == NULL) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - for (i = 0; i < histogram_image_xysize; ++i) { - const int symbol_index = histogram_symbols[i] & 0xffff; - histogram_argb[i] = (symbol_index << 8); - if (symbol_index >= max_index) { - max_index = symbol_index + 1; - } - } - histogram_image_size = max_index; - - VP8LPutBits(bw, histogram_bits - 2, 3); - err = EncodeImageNoHuffman(bw, histogram_argb, hash_chain, refs_array, - VP8LSubSampleSize(width, histogram_bits), - VP8LSubSampleSize(height, histogram_bits), - quality); - WebPSafeFree(histogram_argb); - if (err != VP8_ENC_OK) goto Error; - } - } - - // Store Huffman codes. - { - int i; - int max_tokens = 0; - huff_tree = (HuffmanTree*)WebPSafeMalloc(3ULL * CODE_LENGTH_CODES, - sizeof(*huff_tree)); - if (huff_tree == NULL) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - // Find maximum number of symbols for the huffman tree-set. - for (i = 0; i < 5 * histogram_image_size; ++i) { - HuffmanTreeCode* const codes = &huffman_codes[i]; - if (max_tokens < codes->num_symbols) { - max_tokens = codes->num_symbols; - } - } - tokens = (HuffmanTreeToken*)WebPSafeMalloc(max_tokens, - sizeof(*tokens)); - if (tokens == NULL) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - for (i = 0; i < 5 * histogram_image_size; ++i) { - HuffmanTreeCode* const codes = &huffman_codes[i]; - StoreHuffmanCode(bw, huff_tree, tokens, codes); - ClearHuffmanTreeIfOnlyOneSymbol(codes); - } - } - - *hdr_size = (int)(VP8LBitWriterNumBytes(bw) - init_byte_position); - // Store actual literals. - err = StoreImageToBitMask(bw, width, histogram_bits, &refs, - histogram_symbols, huffman_codes); - *data_size = - (int)(VP8LBitWriterNumBytes(bw) - init_byte_position - *hdr_size); - - Error: - WebPSafeFree(tokens); - WebPSafeFree(huff_tree); - VP8LFreeHistogramSet(histogram_image); - VP8LFreeHistogramSet(tmp_histos); - VP8LBackwardRefsClear(&refs); - if (huffman_codes != NULL) { - WebPSafeFree(huffman_codes->codes); - WebPSafeFree(huffman_codes); - } - WebPSafeFree(histogram_symbols); - return err; -} - -// ----------------------------------------------------------------------------- -// Transforms - -static void ApplySubtractGreen(VP8LEncoder* const enc, int width, int height, - VP8LBitWriter* const bw) { - VP8LPutBits(bw, TRANSFORM_PRESENT, 1); - VP8LPutBits(bw, SUBTRACT_GREEN, 2); - VP8LSubtractGreenFromBlueAndRed(enc->argb_, width * height); -} - -static WebPEncodingError ApplyPredictFilter(const VP8LEncoder* const enc, - int width, int height, - int quality, int low_effort, - int used_subtract_green, - VP8LBitWriter* const bw) { - const int pred_bits = enc->transform_bits_; - const int transform_width = VP8LSubSampleSize(width, pred_bits); - const int transform_height = VP8LSubSampleSize(height, pred_bits); - // we disable near-lossless quantization if palette is used. - const int near_lossless_strength = enc->use_palette_ ? 100 - : enc->config_->near_lossless; - - VP8LResidualImage(width, height, pred_bits, low_effort, enc->argb_, - enc->argb_scratch_, enc->transform_data_, - near_lossless_strength, enc->config_->exact, - used_subtract_green); - VP8LPutBits(bw, TRANSFORM_PRESENT, 1); - VP8LPutBits(bw, PREDICTOR_TRANSFORM, 2); - assert(pred_bits >= 2); - VP8LPutBits(bw, pred_bits - 2, 3); - return EncodeImageNoHuffman(bw, enc->transform_data_, - (VP8LHashChain*)&enc->hash_chain_, - (VP8LBackwardRefs*)enc->refs_, // cast const away - transform_width, transform_height, - quality); -} - -static WebPEncodingError ApplyCrossColorFilter(const VP8LEncoder* const enc, - int width, int height, - int quality, - VP8LBitWriter* const bw) { - const int ccolor_transform_bits = enc->transform_bits_; - const int transform_width = VP8LSubSampleSize(width, ccolor_transform_bits); - const int transform_height = VP8LSubSampleSize(height, ccolor_transform_bits); - - VP8LColorSpaceTransform(width, height, ccolor_transform_bits, quality, - enc->argb_, enc->transform_data_); - VP8LPutBits(bw, TRANSFORM_PRESENT, 1); - VP8LPutBits(bw, CROSS_COLOR_TRANSFORM, 2); - assert(ccolor_transform_bits >= 2); - VP8LPutBits(bw, ccolor_transform_bits - 2, 3); - return EncodeImageNoHuffman(bw, enc->transform_data_, - (VP8LHashChain*)&enc->hash_chain_, - (VP8LBackwardRefs*)enc->refs_, // cast const away - transform_width, transform_height, - quality); -} - -// ----------------------------------------------------------------------------- - -static WebPEncodingError WriteRiffHeader(const WebPPicture* const pic, - size_t riff_size, size_t vp8l_size) { - uint8_t riff[RIFF_HEADER_SIZE + CHUNK_HEADER_SIZE + VP8L_SIGNATURE_SIZE] = { - 'R', 'I', 'F', 'F', 0, 0, 0, 0, 'W', 'E', 'B', 'P', - 'V', 'P', '8', 'L', 0, 0, 0, 0, VP8L_MAGIC_BYTE, - }; - PutLE32(riff + TAG_SIZE, (uint32_t)riff_size); - PutLE32(riff + RIFF_HEADER_SIZE + TAG_SIZE, (uint32_t)vp8l_size); - if (!pic->writer(riff, sizeof(riff), pic)) { - return VP8_ENC_ERROR_BAD_WRITE; - } - return VP8_ENC_OK; -} - -static int WriteImageSize(const WebPPicture* const pic, - VP8LBitWriter* const bw) { - const int width = pic->width - 1; - const int height = pic->height - 1; - assert(width < WEBP_MAX_DIMENSION && height < WEBP_MAX_DIMENSION); - - VP8LPutBits(bw, width, VP8L_IMAGE_SIZE_BITS); - VP8LPutBits(bw, height, VP8L_IMAGE_SIZE_BITS); - return !bw->error_; -} - -static int WriteRealAlphaAndVersion(VP8LBitWriter* const bw, int has_alpha) { - VP8LPutBits(bw, has_alpha, 1); - VP8LPutBits(bw, VP8L_VERSION, VP8L_VERSION_BITS); - return !bw->error_; -} - -static WebPEncodingError WriteImage(const WebPPicture* const pic, - VP8LBitWriter* const bw, - size_t* const coded_size) { - WebPEncodingError err = VP8_ENC_OK; - const uint8_t* const webpll_data = VP8LBitWriterFinish(bw); - const size_t webpll_size = VP8LBitWriterNumBytes(bw); - const size_t vp8l_size = VP8L_SIGNATURE_SIZE + webpll_size; - const size_t pad = vp8l_size & 1; - const size_t riff_size = TAG_SIZE + CHUNK_HEADER_SIZE + vp8l_size + pad; - - err = WriteRiffHeader(pic, riff_size, vp8l_size); - if (err != VP8_ENC_OK) goto Error; - - if (!pic->writer(webpll_data, webpll_size, pic)) { - err = VP8_ENC_ERROR_BAD_WRITE; - goto Error; - } - - if (pad) { - const uint8_t pad_byte[1] = { 0 }; - if (!pic->writer(pad_byte, 1, pic)) { - err = VP8_ENC_ERROR_BAD_WRITE; - goto Error; - } - } - *coded_size = CHUNK_HEADER_SIZE + riff_size; - return VP8_ENC_OK; - - Error: - return err; -} - -// ----------------------------------------------------------------------------- - -static void ClearTransformBuffer(VP8LEncoder* const enc) { - WebPSafeFree(enc->transform_mem_); - enc->transform_mem_ = NULL; - enc->transform_mem_size_ = 0; -} - -// Allocates the memory for argb (W x H) buffer, 2 rows of context for -// prediction and transform data. -// Flags influencing the memory allocated: -// enc->transform_bits_ -// enc->use_predict_, enc->use_cross_color_ -static WebPEncodingError AllocateTransformBuffer(VP8LEncoder* const enc, - int width, int height) { - WebPEncodingError err = VP8_ENC_OK; - const uint64_t image_size = width * height; - // VP8LResidualImage needs room for 2 scanlines of uint32 pixels with an extra - // pixel in each, plus 2 regular scanlines of bytes. - // TODO(skal): Clean up by using arithmetic in bytes instead of words. - const uint64_t argb_scratch_size = - enc->use_predict_ - ? (width + 1) * 2 + - (width * 2 + sizeof(uint32_t) - 1) / sizeof(uint32_t) - : 0; - const uint64_t transform_data_size = - (enc->use_predict_ || enc->use_cross_color_) - ? VP8LSubSampleSize(width, enc->transform_bits_) * - VP8LSubSampleSize(height, enc->transform_bits_) - : 0; - const uint64_t max_alignment_in_words = - (WEBP_ALIGN_CST + sizeof(uint32_t) - 1) / sizeof(uint32_t); - const uint64_t mem_size = - image_size + max_alignment_in_words + - argb_scratch_size + max_alignment_in_words + - transform_data_size; - uint32_t* mem = enc->transform_mem_; - if (mem == NULL || mem_size > enc->transform_mem_size_) { - ClearTransformBuffer(enc); - mem = (uint32_t*)WebPSafeMalloc(mem_size, sizeof(*mem)); - if (mem == NULL) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - enc->transform_mem_ = mem; - enc->transform_mem_size_ = (size_t)mem_size; - } - enc->argb_ = mem; - mem = (uint32_t*)WEBP_ALIGN(mem + image_size); - enc->argb_scratch_ = mem; - mem = (uint32_t*)WEBP_ALIGN(mem + argb_scratch_size); - enc->transform_data_ = mem; - - enc->current_width_ = width; - Error: - return err; -} - -static WebPEncodingError MakeInputImageCopy(VP8LEncoder* const enc) { - WebPEncodingError err = VP8_ENC_OK; - const WebPPicture* const picture = enc->pic_; - const int width = picture->width; - const int height = picture->height; - int y; - err = AllocateTransformBuffer(enc, width, height); - if (err != VP8_ENC_OK) return err; - for (y = 0; y < height; ++y) { - memcpy(enc->argb_ + y * width, - picture->argb + y * picture->argb_stride, - width * sizeof(*enc->argb_)); - } - assert(enc->current_width_ == width); - return VP8_ENC_OK; -} - -// ----------------------------------------------------------------------------- - -static int SearchColor(const uint32_t sorted[], uint32_t color, int hi) { - int low = 0; - if (sorted[low] == color) return low; // loop invariant: sorted[low] != color - while (1) { - const int mid = (low + hi) >> 1; - if (sorted[mid] == color) { - return mid; - } else if (sorted[mid] < color) { - low = mid; - } else { - hi = mid; - } - } -} - -// Sort palette in increasing order and prepare an inverse mapping array. -static void PrepareMapToPalette(const uint32_t palette[], int num_colors, - uint32_t sorted[], int idx_map[]) { - int i; - memcpy(sorted, palette, num_colors * sizeof(*sorted)); - qsort(sorted, num_colors, sizeof(*sorted), PaletteCompareColorsForQsort); - for (i = 0; i < num_colors; ++i) { - idx_map[SearchColor(sorted, palette[i], num_colors)] = i; - } -} - -static void MapToPalette(const uint32_t sorted_palette[], int num_colors, - uint32_t* const last_pix, int* const last_idx, - const int idx_map[], - const uint32_t* src, uint8_t* dst, int width) { - int x; - int prev_idx = *last_idx; - uint32_t prev_pix = *last_pix; - for (x = 0; x < width; ++x) { - const uint32_t pix = src[x]; - if (pix != prev_pix) { - prev_idx = idx_map[SearchColor(sorted_palette, pix, num_colors)]; - prev_pix = pix; - } - dst[x] = prev_idx; - } - *last_idx = prev_idx; - *last_pix = prev_pix; -} - -// Remap argb values in src[] to packed palettes entries in dst[] -// using 'row' as a temporary buffer of size 'width'. -// We assume that all src[] values have a corresponding entry in the palette. -// Note: src[] can be the same as dst[] -static WebPEncodingError ApplyPalette(const uint32_t* src, uint32_t src_stride, - uint32_t* dst, uint32_t dst_stride, - const uint32_t* palette, int palette_size, - int width, int height, int xbits) { - // TODO(skal): this tmp buffer is not needed if VP8LBundleColorMap() can be - // made to work in-place. - uint8_t* const tmp_row = (uint8_t*)WebPSafeMalloc(width, sizeof(*tmp_row)); - int i, x, y; - int use_LUT = 1; - - if (tmp_row == NULL) return VP8_ENC_ERROR_OUT_OF_MEMORY; - for (i = 0; i < palette_size; ++i) { - if ((palette[i] & 0xffff00ffu) != 0) { - use_LUT = 0; - break; - } - } - - if (use_LUT) { - uint8_t inv_palette[MAX_PALETTE_SIZE] = { 0 }; - for (i = 0; i < palette_size; ++i) { - const int color = (palette[i] >> 8) & 0xff; - inv_palette[color] = i; - } - for (y = 0; y < height; ++y) { - for (x = 0; x < width; ++x) { - const int color = (src[x] >> 8) & 0xff; - tmp_row[x] = inv_palette[color]; - } - VP8LBundleColorMap(tmp_row, width, xbits, dst); - src += src_stride; - dst += dst_stride; - } - } else { - // Use 1 pixel cache for ARGB pixels. - uint32_t last_pix; - int last_idx; - uint32_t sorted[MAX_PALETTE_SIZE]; - int idx_map[MAX_PALETTE_SIZE]; - PrepareMapToPalette(palette, palette_size, sorted, idx_map); - last_pix = palette[0]; - last_idx = 0; - for (y = 0; y < height; ++y) { - MapToPalette(sorted, palette_size, &last_pix, &last_idx, - idx_map, src, tmp_row, width); - VP8LBundleColorMap(tmp_row, width, xbits, dst); - src += src_stride; - dst += dst_stride; - } - } - WebPSafeFree(tmp_row); - return VP8_ENC_OK; -} - -// Note: Expects "enc->palette_" to be set properly. -static WebPEncodingError MapImageFromPalette(VP8LEncoder* const enc, - int in_place) { - WebPEncodingError err = VP8_ENC_OK; - const WebPPicture* const pic = enc->pic_; - const int width = pic->width; - const int height = pic->height; - const uint32_t* const palette = enc->palette_; - const uint32_t* src = in_place ? enc->argb_ : pic->argb; - const int src_stride = in_place ? enc->current_width_ : pic->argb_stride; - const int palette_size = enc->palette_size_; - int xbits; - - // Replace each input pixel by corresponding palette index. - // This is done line by line. - if (palette_size <= 4) { - xbits = (palette_size <= 2) ? 3 : 2; - } else { - xbits = (palette_size <= 16) ? 1 : 0; - } - - err = AllocateTransformBuffer(enc, VP8LSubSampleSize(width, xbits), height); - if (err != VP8_ENC_OK) return err; - - err = ApplyPalette(src, src_stride, - enc->argb_, enc->current_width_, - palette, palette_size, width, height, xbits); - return err; -} - -// Save palette_[] to bitstream. -static WebPEncodingError EncodePalette(VP8LBitWriter* const bw, - VP8LEncoder* const enc) { - int i; - uint32_t tmp_palette[MAX_PALETTE_SIZE]; - const int palette_size = enc->palette_size_; - const uint32_t* const palette = enc->palette_; - VP8LPutBits(bw, TRANSFORM_PRESENT, 1); - VP8LPutBits(bw, COLOR_INDEXING_TRANSFORM, 2); - assert(palette_size >= 1 && palette_size <= MAX_PALETTE_SIZE); - VP8LPutBits(bw, palette_size - 1, 8); - for (i = palette_size - 1; i >= 1; --i) { - tmp_palette[i] = VP8LSubPixels(palette[i], palette[i - 1]); - } - tmp_palette[0] = palette[0]; - return EncodeImageNoHuffman(bw, tmp_palette, &enc->hash_chain_, enc->refs_, - palette_size, 1, 20 /* quality */); -} - -#ifdef WEBP_EXPERIMENTAL_FEATURES - -static WebPEncodingError EncodeDeltaPalettePredictorImage( - VP8LBitWriter* const bw, VP8LEncoder* const enc, int quality) { - const WebPPicture* const pic = enc->pic_; - const int width = pic->width; - const int height = pic->height; - - const int pred_bits = 5; - const int transform_width = VP8LSubSampleSize(width, pred_bits); - const int transform_height = VP8LSubSampleSize(height, pred_bits); - const int pred = 7; // default is Predictor7 (Top/Left Average) - const int tiles_per_row = VP8LSubSampleSize(width, pred_bits); - const int tiles_per_col = VP8LSubSampleSize(height, pred_bits); - uint32_t* predictors; - int tile_x, tile_y; - WebPEncodingError err = VP8_ENC_OK; - - predictors = (uint32_t*)WebPSafeMalloc(tiles_per_col * tiles_per_row, - sizeof(*predictors)); - if (predictors == NULL) return VP8_ENC_ERROR_OUT_OF_MEMORY; - - for (tile_y = 0; tile_y < tiles_per_col; ++tile_y) { - for (tile_x = 0; tile_x < tiles_per_row; ++tile_x) { - predictors[tile_y * tiles_per_row + tile_x] = 0xff000000u | (pred << 8); - } - } - - VP8LPutBits(bw, TRANSFORM_PRESENT, 1); - VP8LPutBits(bw, PREDICTOR_TRANSFORM, 2); - VP8LPutBits(bw, pred_bits - 2, 3); - err = EncodeImageNoHuffman(bw, predictors, &enc->hash_chain_, - (VP8LBackwardRefs*)enc->refs_, // cast const away - transform_width, transform_height, - quality); - WebPSafeFree(predictors); - return err; -} - -#endif // WEBP_EXPERIMENTAL_FEATURES - -// ----------------------------------------------------------------------------- -// VP8LEncoder - -static VP8LEncoder* VP8LEncoderNew(const WebPConfig* const config, - const WebPPicture* const picture) { - VP8LEncoder* const enc = (VP8LEncoder*)WebPSafeCalloc(1ULL, sizeof(*enc)); - if (enc == NULL) { - WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); - return NULL; - } - enc->config_ = config; - enc->pic_ = picture; - - VP8LEncDspInit(); - - return enc; -} - -static void VP8LEncoderDelete(VP8LEncoder* enc) { - if (enc != NULL) { - VP8LHashChainClear(&enc->hash_chain_); - VP8LBackwardRefsClear(&enc->refs_[0]); - VP8LBackwardRefsClear(&enc->refs_[1]); - ClearTransformBuffer(enc); - WebPSafeFree(enc); - } -} - -// ----------------------------------------------------------------------------- -// Main call - -WebPEncodingError VP8LEncodeStream(const WebPConfig* const config, - const WebPPicture* const picture, - VP8LBitWriter* const bw, int use_cache) { - WebPEncodingError err = VP8_ENC_OK; - const int quality = (int)config->quality; - const int low_effort = (config->method == 0); - const int width = picture->width; - const int height = picture->height; - VP8LEncoder* const enc = VP8LEncoderNew(config, picture); - const size_t byte_position = VP8LBitWriterNumBytes(bw); - int use_near_lossless = 0; - int hdr_size = 0; - int data_size = 0; - int use_delta_palettization = 0; - - if (enc == NULL) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - - // --------------------------------------------------------------------------- - // Analyze image (entropy, num_palettes etc) - - if (!AnalyzeAndInit(enc)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - - // Apply near-lossless preprocessing. - use_near_lossless = - (config->near_lossless < 100) && !enc->use_palette_ && !enc->use_predict_; - if (use_near_lossless) { - if (!VP8ApplyNearLossless(width, height, picture->argb, - config->near_lossless)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - } - -#ifdef WEBP_EXPERIMENTAL_FEATURES - if (config->delta_palettization) { - enc->use_predict_ = 1; - enc->use_cross_color_ = 0; - enc->use_subtract_green_ = 0; - enc->use_palette_ = 1; - err = MakeInputImageCopy(enc); - if (err != VP8_ENC_OK) goto Error; - err = WebPSearchOptimalDeltaPalette(enc); - if (err != VP8_ENC_OK) goto Error; - if (enc->use_palette_) { - err = AllocateTransformBuffer(enc, width, height); - if (err != VP8_ENC_OK) goto Error; - err = EncodeDeltaPalettePredictorImage(bw, enc, quality); - if (err != VP8_ENC_OK) goto Error; - use_delta_palettization = 1; - } - } -#endif // WEBP_EXPERIMENTAL_FEATURES - - // Encode palette - if (enc->use_palette_) { - err = EncodePalette(bw, enc); - if (err != VP8_ENC_OK) goto Error; - err = MapImageFromPalette(enc, use_delta_palettization); - if (err != VP8_ENC_OK) goto Error; - } - if (!use_delta_palettization) { - // In case image is not packed. - if (enc->argb_ == NULL) { - err = MakeInputImageCopy(enc); - if (err != VP8_ENC_OK) goto Error; - } - - // ------------------------------------------------------------------------- - // Apply transforms and write transform data. - - if (enc->use_subtract_green_) { - ApplySubtractGreen(enc, enc->current_width_, height, bw); - } - - if (enc->use_predict_) { - err = ApplyPredictFilter(enc, enc->current_width_, height, quality, - low_effort, enc->use_subtract_green_, bw); - if (err != VP8_ENC_OK) goto Error; - } - - if (enc->use_cross_color_) { - err = ApplyCrossColorFilter(enc, enc->current_width_, - height, quality, bw); - if (err != VP8_ENC_OK) goto Error; - } - } - - VP8LPutBits(bw, !TRANSFORM_PRESENT, 1); // No more transforms. - - // --------------------------------------------------------------------------- - // Encode and write the transformed image. - err = EncodeImageInternal(bw, enc->argb_, &enc->hash_chain_, enc->refs_, - enc->current_width_, height, quality, low_effort, - use_cache, &enc->cache_bits_, enc->histo_bits_, - byte_position, &hdr_size, &data_size); - if (err != VP8_ENC_OK) goto Error; - - if (picture->stats != NULL) { - WebPAuxStats* const stats = picture->stats; - stats->lossless_features = 0; - if (enc->use_predict_) stats->lossless_features |= 1; - if (enc->use_cross_color_) stats->lossless_features |= 2; - if (enc->use_subtract_green_) stats->lossless_features |= 4; - if (enc->use_palette_) stats->lossless_features |= 8; - stats->histogram_bits = enc->histo_bits_; - stats->transform_bits = enc->transform_bits_; - stats->cache_bits = enc->cache_bits_; - stats->palette_size = enc->palette_size_; - stats->lossless_size = (int)(VP8LBitWriterNumBytes(bw) - byte_position); - stats->lossless_hdr_size = hdr_size; - stats->lossless_data_size = data_size; - } - - Error: - VP8LEncoderDelete(enc); - return err; -} - -int VP8LEncodeImage(const WebPConfig* const config, - const WebPPicture* const picture) { - int width, height; - int has_alpha; - size_t coded_size; - int percent = 0; - int initial_size; - WebPEncodingError err = VP8_ENC_OK; - VP8LBitWriter bw; - - if (picture == NULL) return 0; - - if (config == NULL || picture->argb == NULL) { - err = VP8_ENC_ERROR_NULL_PARAMETER; - WebPEncodingSetError(picture, err); - return 0; - } - - width = picture->width; - height = picture->height; - // Initialize BitWriter with size corresponding to 16 bpp to photo images and - // 8 bpp for graphical images. - initial_size = (config->image_hint == WEBP_HINT_GRAPH) ? - width * height : width * height * 2; - if (!VP8LBitWriterInit(&bw, initial_size)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - - if (!WebPReportProgress(picture, 1, &percent)) { - UserAbort: - err = VP8_ENC_ERROR_USER_ABORT; - goto Error; - } - // Reset stats (for pure lossless coding) - if (picture->stats != NULL) { - WebPAuxStats* const stats = picture->stats; - memset(stats, 0, sizeof(*stats)); - stats->PSNR[0] = 99.f; - stats->PSNR[1] = 99.f; - stats->PSNR[2] = 99.f; - stats->PSNR[3] = 99.f; - stats->PSNR[4] = 99.f; - } - - // Write image size. - if (!WriteImageSize(picture, &bw)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - - has_alpha = WebPPictureHasTransparency(picture); - // Write the non-trivial Alpha flag and lossless version. - if (!WriteRealAlphaAndVersion(&bw, has_alpha)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; - } - - if (!WebPReportProgress(picture, 5, &percent)) goto UserAbort; - - // Encode main image stream. - err = VP8LEncodeStream(config, picture, &bw, 1 /*use_cache*/); - if (err != VP8_ENC_OK) goto Error; - - // TODO(skal): have a fine-grained progress report in VP8LEncodeStream(). - if (!WebPReportProgress(picture, 90, &percent)) goto UserAbort; - - // Finish the RIFF chunk. - err = WriteImage(picture, &bw, &coded_size); - if (err != VP8_ENC_OK) goto Error; - - if (!WebPReportProgress(picture, 100, &percent)) goto UserAbort; - - // Save size. - if (picture->stats != NULL) { - picture->stats->coded_size += (int)coded_size; - picture->stats->lossless_size = (int)coded_size; - } - - if (picture->extra_info != NULL) { - const int mb_w = (width + 15) >> 4; - const int mb_h = (height + 15) >> 4; - memset(picture->extra_info, 0, mb_w * mb_h * sizeof(*picture->extra_info)); - } - - Error: - if (bw.error_) err = VP8_ENC_ERROR_OUT_OF_MEMORY; - VP8LBitWriterWipeOut(&bw); - if (err != VP8_ENC_OK) { - WebPEncodingSetError(picture, err); - return 0; - } - return 1; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/enc/vp8li.h b/drivers/webp/enc/vp8li.h deleted file mode 100644 index 8e6b360d81..0000000000 --- a/drivers/webp/enc/vp8li.h +++ /dev/null @@ -1,81 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Lossless encoder: internal header. -// -// Author: Vikas Arora (vikaas.arora@gmail.com) - -#ifndef WEBP_ENC_VP8LI_H_ -#define WEBP_ENC_VP8LI_H_ - -#include "./backward_references.h" -#include "./histogram.h" -#include "../utils/bit_writer.h" -#include "webp/encode.h" -#include "webp/format_constants.h" - -#ifdef __cplusplus -extern "C" { -#endif - -typedef struct { - const WebPConfig* config_; // user configuration and parameters - const WebPPicture* pic_; // input picture. - - uint32_t* argb_; // Transformed argb image data. - uint32_t* argb_scratch_; // Scratch memory for argb rows - // (used for prediction). - uint32_t* transform_data_; // Scratch memory for transform data. - uint32_t* transform_mem_; // Currently allocated memory. - size_t transform_mem_size_; // Currently allocated memory size. - - int current_width_; // Corresponds to packed image width. - - // Encoding parameters derived from quality parameter. - int histo_bits_; - int transform_bits_; - int cache_bits_; // If equal to 0, don't use color cache. - - // Encoding parameters derived from image characteristics. - int use_cross_color_; - int use_subtract_green_; - int use_predict_; - int use_palette_; - int palette_size_; - uint32_t palette_[MAX_PALETTE_SIZE]; - - // Some 'scratch' (potentially large) objects. - struct VP8LBackwardRefs refs_[2]; // Backward Refs array corresponding to - // LZ77 & RLE coding. - VP8LHashChain hash_chain_; // HashChain data for constructing - // backward references. -} VP8LEncoder; - -//------------------------------------------------------------------------------ -// internal functions. Not public. - -// Encodes the picture. -// Returns 0 if config or picture is NULL or picture doesn't have valid argb -// input. -int VP8LEncodeImage(const WebPConfig* const config, - const WebPPicture* const picture); - -// Encodes the main image stream using the supplied bit writer. -// If 'use_cache' is false, disables the use of color cache. -WebPEncodingError VP8LEncodeStream(const WebPConfig* const config, - const WebPPicture* const picture, - VP8LBitWriter* const bw, int use_cache); - -//------------------------------------------------------------------------------ - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_ENC_VP8LI_H_ */ diff --git a/drivers/webp/enc/webpenc.c b/drivers/webp/enc/webpenc.c deleted file mode 100644 index a7d04ea2ce..0000000000 --- a/drivers/webp/enc/webpenc.c +++ /dev/null @@ -1,395 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// WebP encoder: main entry point -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> -#include <stdlib.h> -#include <string.h> -#include <math.h> - -#include "./cost.h" -#include "./vp8enci.h" -#include "./vp8li.h" -#include "../utils/utils.h" - -// #define PRINT_MEMORY_INFO - -#ifdef PRINT_MEMORY_INFO -#include <stdio.h> -#endif - -//------------------------------------------------------------------------------ - -int WebPGetEncoderVersion(void) { - return (ENC_MAJ_VERSION << 16) | (ENC_MIN_VERSION << 8) | ENC_REV_VERSION; -} - -//------------------------------------------------------------------------------ -// VP8Encoder -//------------------------------------------------------------------------------ - -static void ResetSegmentHeader(VP8Encoder* const enc) { - VP8EncSegmentHeader* const hdr = &enc->segment_hdr_; - hdr->num_segments_ = enc->config_->segments; - hdr->update_map_ = (hdr->num_segments_ > 1); - hdr->size_ = 0; -} - -static void ResetFilterHeader(VP8Encoder* const enc) { - VP8EncFilterHeader* const hdr = &enc->filter_hdr_; - hdr->simple_ = 1; - hdr->level_ = 0; - hdr->sharpness_ = 0; - hdr->i4x4_lf_delta_ = 0; -} - -static void ResetBoundaryPredictions(VP8Encoder* const enc) { - // init boundary values once for all - // Note: actually, initializing the preds_[] is only needed for intra4. - int i; - uint8_t* const top = enc->preds_ - enc->preds_w_; - uint8_t* const left = enc->preds_ - 1; - for (i = -1; i < 4 * enc->mb_w_; ++i) { - top[i] = B_DC_PRED; - } - for (i = 0; i < 4 * enc->mb_h_; ++i) { - left[i * enc->preds_w_] = B_DC_PRED; - } - enc->nz_[-1] = 0; // constant -} - -// Mapping from config->method_ to coding tools used. -//-------------------+---+---+---+---+---+---+---+ -// Method | 0 | 1 | 2 | 3 |(4)| 5 | 6 | -//-------------------+---+---+---+---+---+---+---+ -// fast probe | x | | | x | | | | -//-------------------+---+---+---+---+---+---+---+ -// dynamic proba | ~ | x | x | x | x | x | x | -//-------------------+---+---+---+---+---+---+---+ -// fast mode analysis| | | | | x | x | x | -//-------------------+---+---+---+---+---+---+---+ -// basic rd-opt | | | | x | x | x | x | -//-------------------+---+---+---+---+---+---+---+ -// disto-refine i4/16| x | x | x | | | | | -//-------------------+---+---+---+---+---+---+---+ -// disto-refine uv | | x | x | | | | | -//-------------------+---+---+---+---+---+---+---+ -// rd-opt i4/16 | | | ~ | x | x | x | x | -//-------------------+---+---+---+---+---+---+---+ -// token buffer (opt)| | | | x | x | x | x | -//-------------------+---+---+---+---+---+---+---+ -// Trellis | | | | | | x |Ful| -//-------------------+---+---+---+---+---+---+---+ -// full-SNS | | | | | x | x | x | -//-------------------+---+---+---+---+---+---+---+ - -static void MapConfigToTools(VP8Encoder* const enc) { - const WebPConfig* const config = enc->config_; - const int method = config->method; - const int limit = 100 - config->partition_limit; - enc->method_ = method; - enc->rd_opt_level_ = (method >= 6) ? RD_OPT_TRELLIS_ALL - : (method >= 5) ? RD_OPT_TRELLIS - : (method >= 3) ? RD_OPT_BASIC - : RD_OPT_NONE; - enc->max_i4_header_bits_ = - 256 * 16 * 16 * // upper bound: up to 16bit per 4x4 block - (limit * limit) / (100 * 100); // ... modulated with a quadratic curve. - - // partition0 = 512k max. - enc->mb_header_limit_ = - (score_t)256 * 510 * 8 * 1024 / (enc->mb_w_ * enc->mb_h_); - - enc->thread_level_ = config->thread_level; - - enc->do_search_ = (config->target_size > 0 || config->target_PSNR > 0); - if (!config->low_memory) { -#if !defined(DISABLE_TOKEN_BUFFER) - enc->use_tokens_ = (enc->rd_opt_level_ >= RD_OPT_BASIC); // need rd stats -#endif - if (enc->use_tokens_) { - enc->num_parts_ = 1; // doesn't work with multi-partition - } - } -} - -// Memory scaling with dimensions: -// memory (bytes) ~= 2.25 * w + 0.0625 * w * h -// -// Typical memory footprint (614x440 picture) -// encoder: 22111 -// info: 4368 -// preds: 17741 -// top samples: 1263 -// non-zero: 175 -// lf-stats: 0 -// total: 45658 -// Transient object sizes: -// VP8EncIterator: 3360 -// VP8ModeScore: 872 -// VP8SegmentInfo: 732 -// VP8EncProba: 18352 -// LFStats: 2048 -// Picture size (yuv): 419328 - -static VP8Encoder* InitVP8Encoder(const WebPConfig* const config, - WebPPicture* const picture) { - VP8Encoder* enc; - const int use_filter = - (config->filter_strength > 0) || (config->autofilter > 0); - const int mb_w = (picture->width + 15) >> 4; - const int mb_h = (picture->height + 15) >> 4; - const int preds_w = 4 * mb_w + 1; - const int preds_h = 4 * mb_h + 1; - const size_t preds_size = preds_w * preds_h * sizeof(*enc->preds_); - const int top_stride = mb_w * 16; - const size_t nz_size = (mb_w + 1) * sizeof(*enc->nz_) + WEBP_ALIGN_CST; - const size_t info_size = mb_w * mb_h * sizeof(*enc->mb_info_); - const size_t samples_size = - 2 * top_stride * sizeof(*enc->y_top_) // top-luma/u/v - + WEBP_ALIGN_CST; // align all - const size_t lf_stats_size = - config->autofilter ? sizeof(*enc->lf_stats_) + WEBP_ALIGN_CST : 0; - uint8_t* mem; - const uint64_t size = (uint64_t)sizeof(*enc) // main struct - + WEBP_ALIGN_CST // cache alignment - + info_size // modes info - + preds_size // prediction modes - + samples_size // top/left samples - + nz_size // coeff context bits - + lf_stats_size; // autofilter stats - -#ifdef PRINT_MEMORY_INFO - printf("===================================\n"); - printf("Memory used:\n" - " encoder: %ld\n" - " info: %ld\n" - " preds: %ld\n" - " top samples: %ld\n" - " non-zero: %ld\n" - " lf-stats: %ld\n" - " total: %ld\n", - sizeof(*enc) + WEBP_ALIGN_CST, info_size, - preds_size, samples_size, nz_size, lf_stats_size, size); - printf("Transient object sizes:\n" - " VP8EncIterator: %ld\n" - " VP8ModeScore: %ld\n" - " VP8SegmentInfo: %ld\n" - " VP8EncProba: %ld\n" - " LFStats: %ld\n", - sizeof(VP8EncIterator), sizeof(VP8ModeScore), - sizeof(VP8SegmentInfo), sizeof(VP8EncProba), - sizeof(LFStats)); - printf("Picture size (yuv): %ld\n", - mb_w * mb_h * 384 * sizeof(uint8_t)); - printf("===================================\n"); -#endif - mem = (uint8_t*)WebPSafeMalloc(size, sizeof(*mem)); - if (mem == NULL) { - WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); - return NULL; - } - enc = (VP8Encoder*)mem; - mem = (uint8_t*)WEBP_ALIGN(mem + sizeof(*enc)); - memset(enc, 0, sizeof(*enc)); - enc->num_parts_ = 1 << config->partitions; - enc->mb_w_ = mb_w; - enc->mb_h_ = mb_h; - enc->preds_w_ = preds_w; - enc->mb_info_ = (VP8MBInfo*)mem; - mem += info_size; - enc->preds_ = ((uint8_t*)mem) + 1 + enc->preds_w_; - mem += preds_size; - enc->nz_ = 1 + (uint32_t*)WEBP_ALIGN(mem); - mem += nz_size; - enc->lf_stats_ = lf_stats_size ? (LFStats*)WEBP_ALIGN(mem) : NULL; - mem += lf_stats_size; - - // top samples (all 16-aligned) - mem = (uint8_t*)WEBP_ALIGN(mem); - enc->y_top_ = (uint8_t*)mem; - enc->uv_top_ = enc->y_top_ + top_stride; - mem += 2 * top_stride; - assert(mem <= (uint8_t*)enc + size); - - enc->config_ = config; - enc->profile_ = use_filter ? ((config->filter_type == 1) ? 0 : 1) : 2; - enc->pic_ = picture; - enc->percent_ = 0; - - MapConfigToTools(enc); - VP8EncDspInit(); - VP8DefaultProbas(enc); - ResetSegmentHeader(enc); - ResetFilterHeader(enc); - ResetBoundaryPredictions(enc); - VP8EncDspCostInit(); - VP8EncInitAlpha(enc); - - // lower quality means smaller output -> we modulate a little the page - // size based on quality. This is just a crude 1rst-order prediction. - { - const float scale = 1.f + config->quality * 5.f / 100.f; // in [1,6] - VP8TBufferInit(&enc->tokens_, (int)(mb_w * mb_h * 4 * scale)); - } - return enc; -} - -static int DeleteVP8Encoder(VP8Encoder* enc) { - int ok = 1; - if (enc != NULL) { - ok = VP8EncDeleteAlpha(enc); - VP8TBufferClear(&enc->tokens_); - WebPSafeFree(enc); - } - return ok; -} - -//------------------------------------------------------------------------------ - -static double GetPSNR(uint64_t err, uint64_t size) { - return (err > 0 && size > 0) ? 10. * log10(255. * 255. * size / err) : 99.; -} - -static void FinalizePSNR(const VP8Encoder* const enc) { - WebPAuxStats* stats = enc->pic_->stats; - const uint64_t size = enc->sse_count_; - const uint64_t* const sse = enc->sse_; - stats->PSNR[0] = (float)GetPSNR(sse[0], size); - stats->PSNR[1] = (float)GetPSNR(sse[1], size / 4); - stats->PSNR[2] = (float)GetPSNR(sse[2], size / 4); - stats->PSNR[3] = (float)GetPSNR(sse[0] + sse[1] + sse[2], size * 3 / 2); - stats->PSNR[4] = (float)GetPSNR(sse[3], size); -} - -static void StoreStats(VP8Encoder* const enc) { - WebPAuxStats* const stats = enc->pic_->stats; - if (stats != NULL) { - int i, s; - for (i = 0; i < NUM_MB_SEGMENTS; ++i) { - stats->segment_level[i] = enc->dqm_[i].fstrength_; - stats->segment_quant[i] = enc->dqm_[i].quant_; - for (s = 0; s <= 2; ++s) { - stats->residual_bytes[s][i] = enc->residual_bytes_[s][i]; - } - } - FinalizePSNR(enc); - stats->coded_size = enc->coded_size_; - for (i = 0; i < 3; ++i) { - stats->block_count[i] = enc->block_count_[i]; - } - } - WebPReportProgress(enc->pic_, 100, &enc->percent_); // done! -} - -int WebPEncodingSetError(const WebPPicture* const pic, - WebPEncodingError error) { - assert((int)error < VP8_ENC_ERROR_LAST); - assert((int)error >= VP8_ENC_OK); - ((WebPPicture*)pic)->error_code = error; - return 0; -} - -int WebPReportProgress(const WebPPicture* const pic, - int percent, int* const percent_store) { - if (percent_store != NULL && percent != *percent_store) { - *percent_store = percent; - if (pic->progress_hook && !pic->progress_hook(percent, pic)) { - // user abort requested - WebPEncodingSetError(pic, VP8_ENC_ERROR_USER_ABORT); - return 0; - } - } - return 1; // ok -} -//------------------------------------------------------------------------------ - -int WebPEncode(const WebPConfig* config, WebPPicture* pic) { - int ok = 0; - - if (pic == NULL) - return 0; - WebPEncodingSetError(pic, VP8_ENC_OK); // all ok so far - if (config == NULL) // bad params - return WebPEncodingSetError(pic, VP8_ENC_ERROR_NULL_PARAMETER); - if (!WebPValidateConfig(config)) - return WebPEncodingSetError(pic, VP8_ENC_ERROR_INVALID_CONFIGURATION); - if (pic->width <= 0 || pic->height <= 0) - return WebPEncodingSetError(pic, VP8_ENC_ERROR_BAD_DIMENSION); - if (pic->width > WEBP_MAX_DIMENSION || pic->height > WEBP_MAX_DIMENSION) - return WebPEncodingSetError(pic, VP8_ENC_ERROR_BAD_DIMENSION); - - if (pic->stats != NULL) memset(pic->stats, 0, sizeof(*pic->stats)); - - if (!config->lossless) { - VP8Encoder* enc = NULL; - - if (!config->exact) { - WebPCleanupTransparentArea(pic); - } - - if (pic->use_argb || pic->y == NULL || pic->u == NULL || pic->v == NULL) { - // Make sure we have YUVA samples. - if (config->preprocessing & 4) { - if (!WebPPictureSmartARGBToYUVA(pic)) { - return 0; - } - } else { - float dithering = 0.f; - if (config->preprocessing & 2) { - const float x = config->quality / 100.f; - const float x2 = x * x; - // slowly decreasing from max dithering at low quality (q->0) - // to 0.5 dithering amplitude at high quality (q->100) - dithering = 1.0f + (0.5f - 1.0f) * x2 * x2; - } - if (!WebPPictureARGBToYUVADithered(pic, WEBP_YUV420, dithering)) { - return 0; - } - } - } - - enc = InitVP8Encoder(config, pic); - if (enc == NULL) return 0; // pic->error is already set. - // Note: each of the tasks below account for 20% in the progress report. - ok = VP8EncAnalyze(enc); - - // Analysis is done, proceed to actual coding. - ok = ok && VP8EncStartAlpha(enc); // possibly done in parallel - if (!enc->use_tokens_) { - ok = ok && VP8EncLoop(enc); - } else { - ok = ok && VP8EncTokenLoop(enc); - } - ok = ok && VP8EncFinishAlpha(enc); - - ok = ok && VP8EncWrite(enc); - StoreStats(enc); - if (!ok) { - VP8EncFreeBitWriters(enc); - } - ok &= DeleteVP8Encoder(enc); // must always be called, even if !ok - } else { - // Make sure we have ARGB samples. - if (pic->argb == NULL && !WebPPictureYUVAToARGB(pic)) { - return 0; - } - - if (!config->exact) { - WebPCleanupTransparentAreaLossless(pic); - } - - ok = VP8LEncodeImage(config, pic); // Sets pic->error in case of problem. - } - - return ok; -} diff --git a/drivers/webp/encode.h b/drivers/webp/encode.h deleted file mode 100644 index 9291b7195c..0000000000 --- a/drivers/webp/encode.h +++ /dev/null @@ -1,527 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// WebP encoder: main interface -// -// Author: Skal (pascal.massimino@gmail.com) - -#ifndef WEBP_WEBP_ENCODE_H_ -#define WEBP_WEBP_ENCODE_H_ - -#include "./types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define WEBP_ENCODER_ABI_VERSION 0x0209 // MAJOR(8b) + MINOR(8b) - -// Note: forward declaring enumerations is not allowed in (strict) C and C++, -// the types are left here for reference. -// typedef enum WebPImageHint WebPImageHint; -// typedef enum WebPEncCSP WebPEncCSP; -// typedef enum WebPPreset WebPPreset; -// typedef enum WebPEncodingError WebPEncodingError; -typedef struct WebPConfig WebPConfig; -typedef struct WebPPicture WebPPicture; // main structure for I/O -typedef struct WebPAuxStats WebPAuxStats; -typedef struct WebPMemoryWriter WebPMemoryWriter; - -// Return the encoder's version number, packed in hexadecimal using 8bits for -// each of major/minor/revision. E.g: v2.5.7 is 0x020507. -WEBP_EXTERN(int) WebPGetEncoderVersion(void); - -//------------------------------------------------------------------------------ -// One-stop-shop call! No questions asked: - -// Returns the size of the compressed data (pointed to by *output), or 0 if -// an error occurred. The compressed data must be released by the caller -// using the call 'WebPFree(*output)'. -// These functions compress using the lossy format, and the quality_factor -// can go from 0 (smaller output, lower quality) to 100 (best quality, -// larger output). -WEBP_EXTERN(size_t) WebPEncodeRGB(const uint8_t* rgb, - int width, int height, int stride, - float quality_factor, uint8_t** output); -WEBP_EXTERN(size_t) WebPEncodeBGR(const uint8_t* bgr, - int width, int height, int stride, - float quality_factor, uint8_t** output); -WEBP_EXTERN(size_t) WebPEncodeRGBA(const uint8_t* rgba, - int width, int height, int stride, - float quality_factor, uint8_t** output); -WEBP_EXTERN(size_t) WebPEncodeBGRA(const uint8_t* bgra, - int width, int height, int stride, - float quality_factor, uint8_t** output); - -// These functions are the equivalent of the above, but compressing in a -// lossless manner. Files are usually larger than lossy format, but will -// not suffer any compression loss. -WEBP_EXTERN(size_t) WebPEncodeLosslessRGB(const uint8_t* rgb, - int width, int height, int stride, - uint8_t** output); -WEBP_EXTERN(size_t) WebPEncodeLosslessBGR(const uint8_t* bgr, - int width, int height, int stride, - uint8_t** output); -WEBP_EXTERN(size_t) WebPEncodeLosslessRGBA(const uint8_t* rgba, - int width, int height, int stride, - uint8_t** output); -WEBP_EXTERN(size_t) WebPEncodeLosslessBGRA(const uint8_t* bgra, - int width, int height, int stride, - uint8_t** output); - -// Releases memory returned by the WebPEncode*() functions above. -WEBP_EXTERN(void) WebPFree(void* ptr); - -//------------------------------------------------------------------------------ -// Coding parameters - -// Image characteristics hint for the underlying encoder. -typedef enum WebPImageHint { - WEBP_HINT_DEFAULT = 0, // default preset. - WEBP_HINT_PICTURE, // digital picture, like portrait, inner shot - WEBP_HINT_PHOTO, // outdoor photograph, with natural lighting - WEBP_HINT_GRAPH, // Discrete tone image (graph, map-tile etc). - WEBP_HINT_LAST -} WebPImageHint; - -// Compression parameters. -struct WebPConfig { - int lossless; // Lossless encoding (0=lossy(default), 1=lossless). - float quality; // between 0 (smallest file) and 100 (biggest) - int method; // quality/speed trade-off (0=fast, 6=slower-better) - - WebPImageHint image_hint; // Hint for image type (lossless only for now). - - // Parameters related to lossy compression only: - int target_size; // if non-zero, set the desired target size in bytes. - // Takes precedence over the 'compression' parameter. - float target_PSNR; // if non-zero, specifies the minimal distortion to - // try to achieve. Takes precedence over target_size. - int segments; // maximum number of segments to use, in [1..4] - int sns_strength; // Spatial Noise Shaping. 0=off, 100=maximum. - int filter_strength; // range: [0 = off .. 100 = strongest] - int filter_sharpness; // range: [0 = off .. 7 = least sharp] - int filter_type; // filtering type: 0 = simple, 1 = strong (only used - // if filter_strength > 0 or autofilter > 0) - int autofilter; // Auto adjust filter's strength [0 = off, 1 = on] - int alpha_compression; // Algorithm for encoding the alpha plane (0 = none, - // 1 = compressed with WebP lossless). Default is 1. - int alpha_filtering; // Predictive filtering method for alpha plane. - // 0: none, 1: fast, 2: best. Default if 1. - int alpha_quality; // Between 0 (smallest size) and 100 (lossless). - // Default is 100. - int pass; // number of entropy-analysis passes (in [1..10]). - - int show_compressed; // if true, export the compressed picture back. - // In-loop filtering is not applied. - int preprocessing; // preprocessing filter: - // 0=none, 1=segment-smooth, 2=pseudo-random dithering - int partitions; // log2(number of token partitions) in [0..3]. Default - // is set to 0 for easier progressive decoding. - int partition_limit; // quality degradation allowed to fit the 512k limit - // on prediction modes coding (0: no degradation, - // 100: maximum possible degradation). - int emulate_jpeg_size; // If true, compression parameters will be remapped - // to better match the expected output size from - // JPEG compression. Generally, the output size will - // be similar but the degradation will be lower. - int thread_level; // If non-zero, try and use multi-threaded encoding. - int low_memory; // If set, reduce memory usage (but increase CPU use). - - int near_lossless; // Near lossless encoding [0 = max loss .. 100 = off - // (default)]. - int exact; // if non-zero, preserve the exact RGB values under - // transparent area. Otherwise, discard this invisible - // RGB information for better compression. The default - // value is 0. - -#ifdef WEBP_EXPERIMENTAL_FEATURES - int delta_palettization; - uint32_t pad[2]; // padding for later use -#else - uint32_t pad[3]; // padding for later use -#endif // WEBP_EXPERIMENTAL_FEATURES -}; - -// Enumerate some predefined settings for WebPConfig, depending on the type -// of source picture. These presets are used when calling WebPConfigPreset(). -typedef enum WebPPreset { - WEBP_PRESET_DEFAULT = 0, // default preset. - WEBP_PRESET_PICTURE, // digital picture, like portrait, inner shot - WEBP_PRESET_PHOTO, // outdoor photograph, with natural lighting - WEBP_PRESET_DRAWING, // hand or line drawing, with high-contrast details - WEBP_PRESET_ICON, // small-sized colorful images - WEBP_PRESET_TEXT // text-like -} WebPPreset; - -// Internal, version-checked, entry point -WEBP_EXTERN(int) WebPConfigInitInternal(WebPConfig*, WebPPreset, float, int); - -// Should always be called, to initialize a fresh WebPConfig structure before -// modification. Returns false in case of version mismatch. WebPConfigInit() -// must have succeeded before using the 'config' object. -// Note that the default values are lossless=0 and quality=75. -static WEBP_INLINE int WebPConfigInit(WebPConfig* config) { - return WebPConfigInitInternal(config, WEBP_PRESET_DEFAULT, 75.f, - WEBP_ENCODER_ABI_VERSION); -} - -// This function will initialize the configuration according to a predefined -// set of parameters (referred to by 'preset') and a given quality factor. -// This function can be called as a replacement to WebPConfigInit(). Will -// return false in case of error. -static WEBP_INLINE int WebPConfigPreset(WebPConfig* config, - WebPPreset preset, float quality) { - return WebPConfigInitInternal(config, preset, quality, - WEBP_ENCODER_ABI_VERSION); -} - -// Activate the lossless compression mode with the desired efficiency level -// between 0 (fastest, lowest compression) and 9 (slower, best compression). -// A good default level is '6', providing a fair tradeoff between compression -// speed and final compressed size. -// This function will overwrite several fields from config: 'method', 'quality' -// and 'lossless'. Returns false in case of parameter error. -WEBP_EXTERN(int) WebPConfigLosslessPreset(WebPConfig* config, int level); - -// Returns true if 'config' is non-NULL and all configuration parameters are -// within their valid ranges. -WEBP_EXTERN(int) WebPValidateConfig(const WebPConfig* config); - -//------------------------------------------------------------------------------ -// Input / Output -// Structure for storing auxiliary statistics (mostly for lossy encoding). - -struct WebPAuxStats { - int coded_size; // final size - - float PSNR[5]; // peak-signal-to-noise ratio for Y/U/V/All/Alpha - int block_count[3]; // number of intra4/intra16/skipped macroblocks - int header_bytes[2]; // approximate number of bytes spent for header - // and mode-partition #0 - int residual_bytes[3][4]; // approximate number of bytes spent for - // DC/AC/uv coefficients for each (0..3) segments. - int segment_size[4]; // number of macroblocks in each segments - int segment_quant[4]; // quantizer values for each segments - int segment_level[4]; // filtering strength for each segments [0..63] - - int alpha_data_size; // size of the transparency data - int layer_data_size; // size of the enhancement layer data - - // lossless encoder statistics - uint32_t lossless_features; // bit0:predictor bit1:cross-color transform - // bit2:subtract-green bit3:color indexing - int histogram_bits; // number of precision bits of histogram - int transform_bits; // precision bits for transform - int cache_bits; // number of bits for color cache lookup - int palette_size; // number of color in palette, if used - int lossless_size; // final lossless size - int lossless_hdr_size; // lossless header (transform, huffman etc) size - int lossless_data_size; // lossless image data size - - uint32_t pad[2]; // padding for later use -}; - -// Signature for output function. Should return true if writing was successful. -// data/data_size is the segment of data to write, and 'picture' is for -// reference (and so one can make use of picture->custom_ptr). -typedef int (*WebPWriterFunction)(const uint8_t* data, size_t data_size, - const WebPPicture* picture); - -// WebPMemoryWrite: a special WebPWriterFunction that writes to memory using -// the following WebPMemoryWriter object (to be set as a custom_ptr). -struct WebPMemoryWriter { - uint8_t* mem; // final buffer (of size 'max_size', larger than 'size'). - size_t size; // final size - size_t max_size; // total capacity - uint32_t pad[1]; // padding for later use -}; - -// The following must be called first before any use. -WEBP_EXTERN(void) WebPMemoryWriterInit(WebPMemoryWriter* writer); - -// The following must be called to deallocate writer->mem memory. The 'writer' -// object itself is not deallocated. -WEBP_EXTERN(void) WebPMemoryWriterClear(WebPMemoryWriter* writer); -// The custom writer to be used with WebPMemoryWriter as custom_ptr. Upon -// completion, writer.mem and writer.size will hold the coded data. -// writer.mem must be freed by calling WebPMemoryWriterClear. -WEBP_EXTERN(int) WebPMemoryWrite(const uint8_t* data, size_t data_size, - const WebPPicture* picture); - -// Progress hook, called from time to time to report progress. It can return -// false to request an abort of the encoding process, or true otherwise if -// everything is OK. -typedef int (*WebPProgressHook)(int percent, const WebPPicture* picture); - -// Color spaces. -typedef enum WebPEncCSP { - // chroma sampling - WEBP_YUV420 = 0, // 4:2:0 - WEBP_YUV420A = 4, // alpha channel variant - WEBP_CSP_UV_MASK = 3, // bit-mask to get the UV sampling factors - WEBP_CSP_ALPHA_BIT = 4 // bit that is set if alpha is present -} WebPEncCSP; - -// Encoding error conditions. -typedef enum WebPEncodingError { - VP8_ENC_OK = 0, - VP8_ENC_ERROR_OUT_OF_MEMORY, // memory error allocating objects - VP8_ENC_ERROR_BITSTREAM_OUT_OF_MEMORY, // memory error while flushing bits - VP8_ENC_ERROR_NULL_PARAMETER, // a pointer parameter is NULL - VP8_ENC_ERROR_INVALID_CONFIGURATION, // configuration is invalid - VP8_ENC_ERROR_BAD_DIMENSION, // picture has invalid width/height - VP8_ENC_ERROR_PARTITION0_OVERFLOW, // partition is bigger than 512k - VP8_ENC_ERROR_PARTITION_OVERFLOW, // partition is bigger than 16M - VP8_ENC_ERROR_BAD_WRITE, // error while flushing bytes - VP8_ENC_ERROR_FILE_TOO_BIG, // file is bigger than 4G - VP8_ENC_ERROR_USER_ABORT, // abort request by user - VP8_ENC_ERROR_LAST // list terminator. always last. -} WebPEncodingError; - -// maximum width/height allowed (inclusive), in pixels -#define WEBP_MAX_DIMENSION 16383 - -// Main exchange structure (input samples, output bytes, statistics) -struct WebPPicture { - // INPUT - ////////////// - // Main flag for encoder selecting between ARGB or YUV input. - // It is recommended to use ARGB input (*argb, argb_stride) for lossless - // compression, and YUV input (*y, *u, *v, etc.) for lossy compression - // since these are the respective native colorspace for these formats. - int use_argb; - - // YUV input (mostly used for input to lossy compression) - WebPEncCSP colorspace; // colorspace: should be YUV420 for now (=Y'CbCr). - int width, height; // dimensions (less or equal to WEBP_MAX_DIMENSION) - uint8_t *y, *u, *v; // pointers to luma/chroma planes. - int y_stride, uv_stride; // luma/chroma strides. - uint8_t* a; // pointer to the alpha plane - int a_stride; // stride of the alpha plane - uint32_t pad1[2]; // padding for later use - - // ARGB input (mostly used for input to lossless compression) - uint32_t* argb; // Pointer to argb (32 bit) plane. - int argb_stride; // This is stride in pixels units, not bytes. - uint32_t pad2[3]; // padding for later use - - // OUTPUT - /////////////// - // Byte-emission hook, to store compressed bytes as they are ready. - WebPWriterFunction writer; // can be NULL - void* custom_ptr; // can be used by the writer. - - // map for extra information (only for lossy compression mode) - int extra_info_type; // 1: intra type, 2: segment, 3: quant - // 4: intra-16 prediction mode, - // 5: chroma prediction mode, - // 6: bit cost, 7: distortion - uint8_t* extra_info; // if not NULL, points to an array of size - // ((width + 15) / 16) * ((height + 15) / 16) that - // will be filled with a macroblock map, depending - // on extra_info_type. - - // STATS AND REPORTS - /////////////////////////// - // Pointer to side statistics (updated only if not NULL) - WebPAuxStats* stats; - - // Error code for the latest error encountered during encoding - WebPEncodingError error_code; - - // If not NULL, report progress during encoding. - WebPProgressHook progress_hook; - - void* user_data; // this field is free to be set to any value and - // used during callbacks (like progress-report e.g.). - - uint32_t pad3[3]; // padding for later use - - // Unused for now - uint8_t *pad4, *pad5; - uint32_t pad6[8]; // padding for later use - - // PRIVATE FIELDS - //////////////////// - void* memory_; // row chunk of memory for yuva planes - void* memory_argb_; // and for argb too. - void* pad7[2]; // padding for later use -}; - -// Internal, version-checked, entry point -WEBP_EXTERN(int) WebPPictureInitInternal(WebPPicture*, int); - -// Should always be called, to initialize the structure. Returns false in case -// of version mismatch. WebPPictureInit() must have succeeded before using the -// 'picture' object. -// Note that, by default, use_argb is false and colorspace is WEBP_YUV420. -static WEBP_INLINE int WebPPictureInit(WebPPicture* picture) { - return WebPPictureInitInternal(picture, WEBP_ENCODER_ABI_VERSION); -} - -//------------------------------------------------------------------------------ -// WebPPicture utils - -// Convenience allocation / deallocation based on picture->width/height: -// Allocate y/u/v buffers as per colorspace/width/height specification. -// Note! This function will free the previous buffer if needed. -// Returns false in case of memory error. -WEBP_EXTERN(int) WebPPictureAlloc(WebPPicture* picture); - -// Release the memory allocated by WebPPictureAlloc() or WebPPictureImport*(). -// Note that this function does _not_ free the memory used by the 'picture' -// object itself. -// Besides memory (which is reclaimed) all other fields of 'picture' are -// preserved. -WEBP_EXTERN(void) WebPPictureFree(WebPPicture* picture); - -// Copy the pixels of *src into *dst, using WebPPictureAlloc. Upon return, *dst -// will fully own the copied pixels (this is not a view). The 'dst' picture need -// not be initialized as its content is overwritten. -// Returns false in case of memory allocation error. -WEBP_EXTERN(int) WebPPictureCopy(const WebPPicture* src, WebPPicture* dst); - -// Compute PSNR, SSIM or LSIM distortion metric between two pictures. Results -// are in dB, stored in result[] in the Y/U/V/Alpha/All or B/G/R/A/All order. -// Returns false in case of error (src and ref don't have same dimension, ...) -// Warning: this function is rather CPU-intensive. -WEBP_EXTERN(int) WebPPictureDistortion( - const WebPPicture* src, const WebPPicture* ref, - int metric_type, // 0 = PSNR, 1 = SSIM, 2 = LSIM - float result[5]); - -// self-crops a picture to the rectangle defined by top/left/width/height. -// Returns false in case of memory allocation error, or if the rectangle is -// outside of the source picture. -// The rectangle for the view is defined by the top-left corner pixel -// coordinates (left, top) as well as its width and height. This rectangle -// must be fully be comprised inside the 'src' source picture. If the source -// picture uses the YUV420 colorspace, the top and left coordinates will be -// snapped to even values. -WEBP_EXTERN(int) WebPPictureCrop(WebPPicture* picture, - int left, int top, int width, int height); - -// Extracts a view from 'src' picture into 'dst'. The rectangle for the view -// is defined by the top-left corner pixel coordinates (left, top) as well -// as its width and height. This rectangle must be fully be comprised inside -// the 'src' source picture. If the source picture uses the YUV420 colorspace, -// the top and left coordinates will be snapped to even values. -// Picture 'src' must out-live 'dst' picture. Self-extraction of view is allowed -// ('src' equal to 'dst') as a mean of fast-cropping (but note that doing so, -// the original dimension will be lost). Picture 'dst' need not be initialized -// with WebPPictureInit() if it is different from 'src', since its content will -// be overwritten. -// Returns false in case of memory allocation error or invalid parameters. -WEBP_EXTERN(int) WebPPictureView(const WebPPicture* src, - int left, int top, int width, int height, - WebPPicture* dst); - -// Returns true if the 'picture' is actually a view and therefore does -// not own the memory for pixels. -WEBP_EXTERN(int) WebPPictureIsView(const WebPPicture* picture); - -// Rescale a picture to new dimension width x height. -// If either 'width' or 'height' (but not both) is 0 the corresponding -// dimension will be calculated preserving the aspect ratio. -// No gamma correction is applied. -// Returns false in case of error (invalid parameter or insufficient memory). -WEBP_EXTERN(int) WebPPictureRescale(WebPPicture* pic, int width, int height); - -// Colorspace conversion function to import RGB samples. -// Previous buffer will be free'd, if any. -// *rgb buffer should have a size of at least height * rgb_stride. -// Returns false in case of memory error. -WEBP_EXTERN(int) WebPPictureImportRGB( - WebPPicture* picture, const uint8_t* rgb, int rgb_stride); -// Same, but for RGBA buffer. -WEBP_EXTERN(int) WebPPictureImportRGBA( - WebPPicture* picture, const uint8_t* rgba, int rgba_stride); -// Same, but for RGBA buffer. Imports the RGB direct from the 32-bit format -// input buffer ignoring the alpha channel. Avoids needing to copy the data -// to a temporary 24-bit RGB buffer to import the RGB only. -WEBP_EXTERN(int) WebPPictureImportRGBX( - WebPPicture* picture, const uint8_t* rgbx, int rgbx_stride); - -// Variants of the above, but taking BGR(A|X) input. -WEBP_EXTERN(int) WebPPictureImportBGR( - WebPPicture* picture, const uint8_t* bgr, int bgr_stride); -WEBP_EXTERN(int) WebPPictureImportBGRA( - WebPPicture* picture, const uint8_t* bgra, int bgra_stride); -WEBP_EXTERN(int) WebPPictureImportBGRX( - WebPPicture* picture, const uint8_t* bgrx, int bgrx_stride); - -// Converts picture->argb data to the YUV420A format. The 'colorspace' -// parameter is deprecated and should be equal to WEBP_YUV420. -// Upon return, picture->use_argb is set to false. The presence of real -// non-opaque transparent values is detected, and 'colorspace' will be -// adjusted accordingly. Note that this method is lossy. -// Returns false in case of error. -WEBP_EXTERN(int) WebPPictureARGBToYUVA(WebPPicture* picture, - WebPEncCSP /*colorspace = WEBP_YUV420*/); - -// Same as WebPPictureARGBToYUVA(), but the conversion is done using -// pseudo-random dithering with a strength 'dithering' between -// 0.0 (no dithering) and 1.0 (maximum dithering). This is useful -// for photographic picture. -WEBP_EXTERN(int) WebPPictureARGBToYUVADithered( - WebPPicture* picture, WebPEncCSP colorspace, float dithering); - -// Performs 'smart' RGBA->YUVA420 downsampling and colorspace conversion. -// Downsampling is handled with extra care in case of color clipping. This -// method is roughly 2x slower than WebPPictureARGBToYUVA() but produces better -// YUV representation. -// Returns false in case of error. -WEBP_EXTERN(int) WebPPictureSmartARGBToYUVA(WebPPicture* picture); - -// Converts picture->yuv to picture->argb and sets picture->use_argb to true. -// The input format must be YUV_420 or YUV_420A. -// Note that the use of this method is discouraged if one has access to the -// raw ARGB samples, since using YUV420 is comparatively lossy. Also, the -// conversion from YUV420 to ARGB incurs a small loss too. -// Returns false in case of error. -WEBP_EXTERN(int) WebPPictureYUVAToARGB(WebPPicture* picture); - -// Helper function: given a width x height plane of RGBA or YUV(A) samples -// clean-up the YUV or RGB samples under fully transparent area, to help -// compressibility (no guarantee, though). -WEBP_EXTERN(void) WebPCleanupTransparentArea(WebPPicture* picture); - -// Scan the picture 'picture' for the presence of non fully opaque alpha values. -// Returns true in such case. Otherwise returns false (indicating that the -// alpha plane can be ignored altogether e.g.). -WEBP_EXTERN(int) WebPPictureHasTransparency(const WebPPicture* picture); - -// Remove the transparency information (if present) by blending the color with -// the background color 'background_rgb' (specified as 24bit RGB triplet). -// After this call, all alpha values are reset to 0xff. -WEBP_EXTERN(void) WebPBlendAlpha(WebPPicture* pic, uint32_t background_rgb); - -//------------------------------------------------------------------------------ -// Main call - -// Main encoding call, after config and picture have been initialized. -// 'picture' must be less than 16384x16384 in dimension (cf WEBP_MAX_DIMENSION), -// and the 'config' object must be a valid one. -// Returns false in case of error, true otherwise. -// In case of error, picture->error_code is updated accordingly. -// 'picture' can hold the source samples in both YUV(A) or ARGB input, depending -// on the value of 'picture->use_argb'. It is highly recommended to use -// the former for lossy encoding, and the latter for lossless encoding -// (when config.lossless is true). Automatic conversion from one format to -// another is provided but they both incur some loss. -WEBP_EXTERN(int) WebPEncode(const WebPConfig* config, WebPPicture* picture); - -//------------------------------------------------------------------------------ - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_WEBP_ENCODE_H_ */ diff --git a/drivers/webp/extras.h b/drivers/webp/extras.h deleted file mode 100644 index 1c24be2e0c..0000000000 --- a/drivers/webp/extras.h +++ /dev/null @@ -1,51 +0,0 @@ -// Copyright 2015 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// - -#ifndef WEBP_WEBP_EXTRAS_H_ -#define WEBP_WEBP_EXTRAS_H_ - -#include "./types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#include "./encode.h" - -#define WEBP_EXTRAS_ABI_VERSION 0x0000 // MAJOR(8b) + MINOR(8b) - -//------------------------------------------------------------------------------ - -// Returns the version number of the extras library, packed in hexadecimal using -// 8bits for each of major/minor/revision. E.g: v2.5.7 is 0x020507. -WEBP_EXTERN(int) WebPGetExtrasVersion(void); - -//------------------------------------------------------------------------------ -// Ad-hoc colorspace importers. - -// Import luma sample (gray scale image) into 'picture'. The 'picture' -// width and height must be set prior to calling this function. -WEBP_EXTERN(int) WebPImportGray(const uint8_t* gray, WebPPicture* picture); - -// Import rgb sample in RGB565 packed format into 'picture'. The 'picture' -// width and height must be set prior to calling this function. -WEBP_EXTERN(int) WebPImportRGB565(const uint8_t* rgb565, WebPPicture* pic); - -// Import rgb sample in RGB4444 packed format into 'picture'. The 'picture' -// width and height must be set prior to calling this function. -WEBP_EXTERN(int) WebPImportRGB4444(const uint8_t* rgb4444, WebPPicture* pic); - -//------------------------------------------------------------------------------ - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_WEBP_EXTRAS_H_ */ diff --git a/drivers/webp/format_constants.h b/drivers/webp/format_constants.h deleted file mode 100644 index b6e78a643e..0000000000 --- a/drivers/webp/format_constants.h +++ /dev/null @@ -1,88 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Internal header for constants related to WebP file format. -// -// Author: Urvang (urvang@google.com) - -#ifndef WEBP_WEBP_FORMAT_CONSTANTS_H_ -#define WEBP_WEBP_FORMAT_CONSTANTS_H_ - -// Create fourcc of the chunk from the chunk tag characters. -#define MKFOURCC(a, b, c, d) ((a) | (b) << 8 | (c) << 16 | (uint32_t)(d) << 24) - -// VP8 related constants. -#define VP8_SIGNATURE 0x9d012a // Signature in VP8 data. -#define VP8_MAX_PARTITION0_SIZE (1 << 19) // max size of mode partition -#define VP8_MAX_PARTITION_SIZE (1 << 24) // max size for token partition -#define VP8_FRAME_HEADER_SIZE 10 // Size of the frame header within VP8 data. - -// VP8L related constants. -#define VP8L_SIGNATURE_SIZE 1 // VP8L signature size. -#define VP8L_MAGIC_BYTE 0x2f // VP8L signature byte. -#define VP8L_IMAGE_SIZE_BITS 14 // Number of bits used to store - // width and height. -#define VP8L_VERSION_BITS 3 // 3 bits reserved for version. -#define VP8L_VERSION 0 // version 0 -#define VP8L_FRAME_HEADER_SIZE 5 // Size of the VP8L frame header. - -#define MAX_PALETTE_SIZE 256 -#define MAX_CACHE_BITS 11 -#define HUFFMAN_CODES_PER_META_CODE 5 -#define ARGB_BLACK 0xff000000 - -#define DEFAULT_CODE_LENGTH 8 -#define MAX_ALLOWED_CODE_LENGTH 15 - -#define NUM_LITERAL_CODES 256 -#define NUM_LENGTH_CODES 24 -#define NUM_DISTANCE_CODES 40 -#define CODE_LENGTH_CODES 19 - -#define MIN_HUFFMAN_BITS 2 // min number of Huffman bits -#define MAX_HUFFMAN_BITS 9 // max number of Huffman bits - -#define TRANSFORM_PRESENT 1 // The bit to be written when next data - // to be read is a transform. -#define NUM_TRANSFORMS 4 // Maximum number of allowed transform - // in a bitstream. -typedef enum { - PREDICTOR_TRANSFORM = 0, - CROSS_COLOR_TRANSFORM = 1, - SUBTRACT_GREEN = 2, - COLOR_INDEXING_TRANSFORM = 3 -} VP8LImageTransformType; - -// Alpha related constants. -#define ALPHA_HEADER_LEN 1 -#define ALPHA_NO_COMPRESSION 0 -#define ALPHA_LOSSLESS_COMPRESSION 1 -#define ALPHA_PREPROCESSED_LEVELS 1 - -// Mux related constants. -#define TAG_SIZE 4 // Size of a chunk tag (e.g. "VP8L"). -#define CHUNK_SIZE_BYTES 4 // Size needed to store chunk's size. -#define CHUNK_HEADER_SIZE 8 // Size of a chunk header. -#define RIFF_HEADER_SIZE 12 // Size of the RIFF header ("RIFFnnnnWEBP"). -#define ANMF_CHUNK_SIZE 16 // Size of an ANMF chunk. -#define ANIM_CHUNK_SIZE 6 // Size of an ANIM chunk. -#define FRGM_CHUNK_SIZE 6 // Size of a FRGM chunk. -#define VP8X_CHUNK_SIZE 10 // Size of a VP8X chunk. - -#define MAX_CANVAS_SIZE (1 << 24) // 24-bit max for VP8X width/height. -#define MAX_IMAGE_AREA (1ULL << 32) // 32-bit max for width x height. -#define MAX_LOOP_COUNT (1 << 16) // maximum value for loop-count -#define MAX_DURATION (1 << 24) // maximum duration -#define MAX_POSITION_OFFSET (1 << 24) // maximum frame/fragment x/y offset - -// Maximum chunk payload is such that adding the header and padding won't -// overflow a uint32_t. -#define MAX_CHUNK_PAYLOAD (~0U - CHUNK_HEADER_SIZE - 1) - -#endif /* WEBP_WEBP_FORMAT_CONSTANTS_H_ */ diff --git a/drivers/webp/image_loader_webp.cpp b/drivers/webp/image_loader_webp.cpp deleted file mode 100644 index 68bb857293..0000000000 --- a/drivers/webp/image_loader_webp.cpp +++ /dev/null @@ -1,182 +0,0 @@ -/*************************************************************************/ -/* image_loader_webp.cpp */ -/*************************************************************************/ -/* This file is part of: */ -/* GODOT ENGINE */ -/* http://www.godotengine.org */ -/*************************************************************************/ -/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */ -/* */ -/* Permission is hereby granted, free of charge, to any person obtaining */ -/* a copy of this software and associated documentation files (the */ -/* "Software"), to deal in the Software without restriction, including */ -/* without limitation the rights to use, copy, modify, merge, publish, */ -/* distribute, sublicense, and/or sell copies of the Software, and to */ -/* permit persons to whom the Software is furnished to do so, subject to */ -/* the following conditions: */ -/* */ -/* The above copyright notice and this permission notice shall be */ -/* included in all copies or substantial portions of the Software. */ -/* */ -/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ -/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ -/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ -/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ -/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ -/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ -/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ -/*************************************************************************/ -#include "image_loader_webp.h" - -#include "print_string.h" -#include "os/os.h" -#include "drivers/webp/decode.h" -#include "drivers/webp/encode.h" -#include "io/marshalls.h" -#include <stdlib.h> - -static DVector<uint8_t> _webp_lossy_pack(const Image& p_image,float p_quality) { - - ERR_FAIL_COND_V(p_image.empty(),DVector<uint8_t>()); - - Image img=p_image; - if (img.detect_alpha()) - img.convert(Image::FORMAT_RGBA); - else - img.convert(Image::FORMAT_RGB); - - Size2 s(img.get_width(),img.get_height()); - DVector<uint8_t> data = img.get_data(); - DVector<uint8_t>::Read r = data.read(); - - uint8_t *dst_buff=NULL; - size_t dst_size=0; - if (img.get_format()==Image::FORMAT_RGB) { - - dst_size = WebPEncodeRGB(r.ptr(),s.width,s.height,3*s.width,CLAMP(p_quality*100.0,0,100.0),&dst_buff); - } else { - dst_size = WebPEncodeRGBA(r.ptr(),s.width,s.height,4*s.width,CLAMP(p_quality*100.0,0,100.0),&dst_buff); - } - - ERR_FAIL_COND_V(dst_size==0,DVector<uint8_t>()); - DVector<uint8_t> dst; - dst.resize(4+dst_size); - DVector<uint8_t>::Write w = dst.write(); - w[0]='W'; - w[1]='E'; - w[2]='B'; - w[3]='P'; - copymem(&w[4],dst_buff,dst_size); - free(dst_buff); - w=DVector<uint8_t>::Write(); - return dst; -} - -static Image _webp_lossy_unpack(const DVector<uint8_t>& p_buffer) { - - int size = p_buffer.size()-4; - ERR_FAIL_COND_V(size<=0,Image()); - DVector<uint8_t>::Read r = p_buffer.read(); - - ERR_FAIL_COND_V(r[0]!='W' || r[1]!='E' || r[2]!='B' || r[3]!='P',Image()); - WebPBitstreamFeatures features; - if (WebPGetFeatures(&r[4],size,&features)!=VP8_STATUS_OK) { - ERR_EXPLAIN("Error unpacking WEBP image:"); - ERR_FAIL_V(Image()); - } - - //print_line("width: "+itos(features.width)); - //print_line("height: "+itos(features.height)); - //print_line("alpha: "+itos(features.has_alpha)); - - DVector<uint8_t> dst_image; - int datasize = features.width*features.height*(features.has_alpha?4:3); - dst_image.resize(datasize); - - DVector<uint8_t>::Write dst_w = dst_image.write(); - - bool errdec=false; - if (features.has_alpha) { - errdec = WebPDecodeRGBAInto(&r[4],size,dst_w.ptr(),datasize,4*features.width)==NULL; - } else { - errdec = WebPDecodeRGBInto(&r[4],size,dst_w.ptr(),datasize,3*features.width)==NULL; - - } - - //ERR_EXPLAIN("Error decoding webp! - "+p_file); - ERR_FAIL_COND_V(errdec,Image()); - - dst_w = DVector<uint8_t>::Write(); - - return Image(features.width,features.height,0,features.has_alpha?Image::FORMAT_RGBA:Image::FORMAT_RGB,dst_image); - -} - - -Error ImageLoaderWEBP::load_image(Image *p_image,FileAccess *f) { - - - uint32_t size = f->get_len(); - DVector<uint8_t> src_image; - src_image.resize(size); - - WebPBitstreamFeatures features; - - DVector<uint8_t>::Write src_w = src_image.write(); - f->get_buffer(src_w.ptr(),size); - ERR_FAIL_COND_V(f->eof_reached(), ERR_FILE_EOF); - - if (WebPGetFeatures(src_w.ptr(),size,&features)!=VP8_STATUS_OK) { - f->close(); - //ERR_EXPLAIN("Error decoding WEBP image: "+p_file); - ERR_FAIL_V(ERR_FILE_CORRUPT); - } - - print_line("width: "+itos(features.width)); - print_line("height: "+itos(features.height)); - print_line("alpha: "+itos(features.has_alpha)); - - src_w = DVector<uint8_t>::Write(); - - DVector<uint8_t> dst_image; - int datasize = features.width*features.height*(features.has_alpha?4:3); - dst_image.resize(datasize); - - DVector<uint8_t>::Read src_r = src_image.read(); - DVector<uint8_t>::Write dst_w = dst_image.write(); - - - bool errdec=false; - if (features.has_alpha) { - errdec = WebPDecodeRGBAInto(src_r.ptr(),size,dst_w.ptr(),datasize,4*features.width)==NULL; - } else { - errdec = WebPDecodeRGBInto(src_r.ptr(),size,dst_w.ptr(),datasize,3*features.width)==NULL; - - } - - //ERR_EXPLAIN("Error decoding webp! - "+p_file); - ERR_FAIL_COND_V(errdec,ERR_FILE_CORRUPT); - - src_r = DVector<uint8_t>::Read(); - dst_w = DVector<uint8_t>::Write(); - - *p_image = Image(features.width,features.height,0,features.has_alpha?Image::FORMAT_RGBA:Image::FORMAT_RGB,dst_image); - - - return OK; - -} - -void ImageLoaderWEBP::get_recognized_extensions(List<String> *p_extensions) const { - - p_extensions->push_back("webp"); -} - - -ImageLoaderWEBP::ImageLoaderWEBP() { - - Image::lossy_packer=_webp_lossy_pack; - Image::lossy_unpacker=_webp_lossy_unpack; -} - - diff --git a/drivers/webp/image_loader_webp.h b/drivers/webp/image_loader_webp.h deleted file mode 100644 index 24f79708db..0000000000 --- a/drivers/webp/image_loader_webp.h +++ /dev/null @@ -1,49 +0,0 @@ -/*************************************************************************/ -/* image_loader_webp.h */ -/*************************************************************************/ -/* This file is part of: */ -/* GODOT ENGINE */ -/* http://www.godotengine.org */ -/*************************************************************************/ -/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */ -/* */ -/* Permission is hereby granted, free of charge, to any person obtaining */ -/* a copy of this software and associated documentation files (the */ -/* "Software"), to deal in the Software without restriction, including */ -/* without limitation the rights to use, copy, modify, merge, publish, */ -/* distribute, sublicense, and/or sell copies of the Software, and to */ -/* permit persons to whom the Software is furnished to do so, subject to */ -/* the following conditions: */ -/* */ -/* The above copyright notice and this permission notice shall be */ -/* included in all copies or substantial portions of the Software. */ -/* */ -/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ -/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ -/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ -/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ -/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ -/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ -/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ -/*************************************************************************/ -#ifndef IMAGE_LOADER_WEBP_H -#define IMAGE_LOADER_WEBP_H - -#include "io/image_loader.h" - -/** - @author Juan Linietsky <reduzio@gmail.com> -*/ -class ImageLoaderWEBP : public ImageFormatLoader { - - -public: - - virtual Error load_image(Image *p_image,FileAccess *f); - virtual void get_recognized_extensions(List<String> *p_extensions) const; - ImageLoaderWEBP(); -}; - - - -#endif diff --git a/drivers/webp/mux.h b/drivers/webp/mux.h deleted file mode 100644 index b72658c741..0000000000 --- a/drivers/webp/mux.h +++ /dev/null @@ -1,530 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// RIFF container manipulation and encoding for WebP images. -// -// Authors: Urvang (urvang@google.com) -// Vikas (vikasa@google.com) - -#ifndef WEBP_WEBP_MUX_H_ -#define WEBP_WEBP_MUX_H_ - -#include "./mux_types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define WEBP_MUX_ABI_VERSION 0x0106 // MAJOR(8b) + MINOR(8b) - -//------------------------------------------------------------------------------ -// Mux API -// -// This API allows manipulation of WebP container images containing features -// like color profile, metadata, animation and fragmented images. -// -// Code Example#1: Create a WebPMux object with image data, color profile and -// XMP metadata. -/* - int copy_data = 0; - WebPMux* mux = WebPMuxNew(); - // ... (Prepare image data). - WebPMuxSetImage(mux, &image, copy_data); - // ... (Prepare ICCP color profile data). - WebPMuxSetChunk(mux, "ICCP", &icc_profile, copy_data); - // ... (Prepare XMP metadata). - WebPMuxSetChunk(mux, "XMP ", &xmp, copy_data); - // Get data from mux in WebP RIFF format. - WebPMuxAssemble(mux, &output_data); - WebPMuxDelete(mux); - // ... (Consume output_data; e.g. write output_data.bytes to file). - WebPDataClear(&output_data); -*/ - -// Code Example#2: Get image and color profile data from a WebP file. -/* - int copy_data = 0; - // ... (Read data from file). - WebPMux* mux = WebPMuxCreate(&data, copy_data); - WebPMuxGetFrame(mux, 1, &image); - // ... (Consume image; e.g. call WebPDecode() to decode the data). - WebPMuxGetChunk(mux, "ICCP", &icc_profile); - // ... (Consume icc_data). - WebPMuxDelete(mux); - free(data); -*/ - -// Note: forward declaring enumerations is not allowed in (strict) C and C++, -// the types are left here for reference. -// typedef enum WebPMuxError WebPMuxError; -// typedef enum WebPChunkId WebPChunkId; -typedef struct WebPMux WebPMux; // main opaque object. -typedef struct WebPMuxFrameInfo WebPMuxFrameInfo; -typedef struct WebPMuxAnimParams WebPMuxAnimParams; -typedef struct WebPAnimEncoderOptions WebPAnimEncoderOptions; - -// Error codes -typedef enum WebPMuxError { - WEBP_MUX_OK = 1, - WEBP_MUX_NOT_FOUND = 0, - WEBP_MUX_INVALID_ARGUMENT = -1, - WEBP_MUX_BAD_DATA = -2, - WEBP_MUX_MEMORY_ERROR = -3, - WEBP_MUX_NOT_ENOUGH_DATA = -4 -} WebPMuxError; - -// IDs for different types of chunks. -typedef enum WebPChunkId { - WEBP_CHUNK_VP8X, // VP8X - WEBP_CHUNK_ICCP, // ICCP - WEBP_CHUNK_ANIM, // ANIM - WEBP_CHUNK_ANMF, // ANMF - WEBP_CHUNK_FRGM, // FRGM - WEBP_CHUNK_ALPHA, // ALPH - WEBP_CHUNK_IMAGE, // VP8/VP8L - WEBP_CHUNK_EXIF, // EXIF - WEBP_CHUNK_XMP, // XMP - WEBP_CHUNK_UNKNOWN, // Other chunks. - WEBP_CHUNK_NIL -} WebPChunkId; - -//------------------------------------------------------------------------------ - -// Returns the version number of the mux library, packed in hexadecimal using -// 8bits for each of major/minor/revision. E.g: v2.5.7 is 0x020507. -WEBP_EXTERN(int) WebPGetMuxVersion(void); - -//------------------------------------------------------------------------------ -// Life of a Mux object - -// Internal, version-checked, entry point -WEBP_EXTERN(WebPMux*) WebPNewInternal(int); - -// Creates an empty mux object. -// Returns: -// A pointer to the newly created empty mux object. -// Or NULL in case of memory error. -static WEBP_INLINE WebPMux* WebPMuxNew(void) { - return WebPNewInternal(WEBP_MUX_ABI_VERSION); -} - -// Deletes the mux object. -// Parameters: -// mux - (in/out) object to be deleted -WEBP_EXTERN(void) WebPMuxDelete(WebPMux* mux); - -//------------------------------------------------------------------------------ -// Mux creation. - -// Internal, version-checked, entry point -WEBP_EXTERN(WebPMux*) WebPMuxCreateInternal(const WebPData*, int, int); - -// Creates a mux object from raw data given in WebP RIFF format. -// Parameters: -// bitstream - (in) the bitstream data in WebP RIFF format -// copy_data - (in) value 1 indicates given data WILL be copied to the mux -// object and value 0 indicates data will NOT be copied. -// Returns: -// A pointer to the mux object created from given data - on success. -// NULL - In case of invalid data or memory error. -static WEBP_INLINE WebPMux* WebPMuxCreate(const WebPData* bitstream, - int copy_data) { - return WebPMuxCreateInternal(bitstream, copy_data, WEBP_MUX_ABI_VERSION); -} - -//------------------------------------------------------------------------------ -// Non-image chunks. - -// Note: Only non-image related chunks should be managed through chunk APIs. -// (Image related chunks are: "ANMF", "FRGM", "VP8 ", "VP8L" and "ALPH"). -// To add, get and delete images, use WebPMuxSetImage(), WebPMuxPushFrame(), -// WebPMuxGetFrame() and WebPMuxDeleteFrame(). - -// Adds a chunk with id 'fourcc' and data 'chunk_data' in the mux object. -// Any existing chunk(s) with the same id will be removed. -// Parameters: -// mux - (in/out) object to which the chunk is to be added -// fourcc - (in) a character array containing the fourcc of the given chunk; -// e.g., "ICCP", "XMP ", "EXIF" etc. -// chunk_data - (in) the chunk data to be added -// copy_data - (in) value 1 indicates given data WILL be copied to the mux -// object and value 0 indicates data will NOT be copied. -// Returns: -// WEBP_MUX_INVALID_ARGUMENT - if mux, fourcc or chunk_data is NULL -// or if fourcc corresponds to an image chunk. -// WEBP_MUX_MEMORY_ERROR - on memory allocation error. -// WEBP_MUX_OK - on success. -WEBP_EXTERN(WebPMuxError) WebPMuxSetChunk( - WebPMux* mux, const char fourcc[4], const WebPData* chunk_data, - int copy_data); - -// Gets a reference to the data of the chunk with id 'fourcc' in the mux object. -// The caller should NOT free the returned data. -// Parameters: -// mux - (in) object from which the chunk data is to be fetched -// fourcc - (in) a character array containing the fourcc of the chunk; -// e.g., "ICCP", "XMP ", "EXIF" etc. -// chunk_data - (out) returned chunk data -// Returns: -// WEBP_MUX_INVALID_ARGUMENT - if mux, fourcc or chunk_data is NULL -// or if fourcc corresponds to an image chunk. -// WEBP_MUX_NOT_FOUND - If mux does not contain a chunk with the given id. -// WEBP_MUX_OK - on success. -WEBP_EXTERN(WebPMuxError) WebPMuxGetChunk( - const WebPMux* mux, const char fourcc[4], WebPData* chunk_data); - -// Deletes the chunk with the given 'fourcc' from the mux object. -// Parameters: -// mux - (in/out) object from which the chunk is to be deleted -// fourcc - (in) a character array containing the fourcc of the chunk; -// e.g., "ICCP", "XMP ", "EXIF" etc. -// Returns: -// WEBP_MUX_INVALID_ARGUMENT - if mux or fourcc is NULL -// or if fourcc corresponds to an image chunk. -// WEBP_MUX_NOT_FOUND - If mux does not contain a chunk with the given fourcc. -// WEBP_MUX_OK - on success. -WEBP_EXTERN(WebPMuxError) WebPMuxDeleteChunk( - WebPMux* mux, const char fourcc[4]); - -//------------------------------------------------------------------------------ -// Images. - -// Encapsulates data about a single frame/fragment. -struct WebPMuxFrameInfo { - WebPData bitstream; // image data: can be a raw VP8/VP8L bitstream - // or a single-image WebP file. - int x_offset; // x-offset of the frame. - int y_offset; // y-offset of the frame. - int duration; // duration of the frame (in milliseconds). - - WebPChunkId id; // frame type: should be one of WEBP_CHUNK_ANMF, - // WEBP_CHUNK_FRGM or WEBP_CHUNK_IMAGE - WebPMuxAnimDispose dispose_method; // Disposal method for the frame. - WebPMuxAnimBlend blend_method; // Blend operation for the frame. - uint32_t pad[1]; // padding for later use -}; - -// Sets the (non-animated and non-fragmented) image in the mux object. -// Note: Any existing images (including frames/fragments) will be removed. -// Parameters: -// mux - (in/out) object in which the image is to be set -// bitstream - (in) can be a raw VP8/VP8L bitstream or a single-image -// WebP file (non-animated and non-fragmented) -// copy_data - (in) value 1 indicates given data WILL be copied to the mux -// object and value 0 indicates data will NOT be copied. -// Returns: -// WEBP_MUX_INVALID_ARGUMENT - if mux is NULL or bitstream is NULL. -// WEBP_MUX_MEMORY_ERROR - on memory allocation error. -// WEBP_MUX_OK - on success. -WEBP_EXTERN(WebPMuxError) WebPMuxSetImage( - WebPMux* mux, const WebPData* bitstream, int copy_data); - -// Adds a frame at the end of the mux object. -// Notes: (1) frame.id should be one of WEBP_CHUNK_ANMF or WEBP_CHUNK_FRGM -// (2) For setting a non-animated non-fragmented image, use -// WebPMuxSetImage() instead. -// (3) Type of frame being pushed must be same as the frames in mux. -// (4) As WebP only supports even offsets, any odd offset will be snapped -// to an even location using: offset &= ~1 -// Parameters: -// mux - (in/out) object to which the frame is to be added -// frame - (in) frame data. -// copy_data - (in) value 1 indicates given data WILL be copied to the mux -// object and value 0 indicates data will NOT be copied. -// Returns: -// WEBP_MUX_INVALID_ARGUMENT - if mux or frame is NULL -// or if content of 'frame' is invalid. -// WEBP_MUX_MEMORY_ERROR - on memory allocation error. -// WEBP_MUX_OK - on success. -WEBP_EXTERN(WebPMuxError) WebPMuxPushFrame( - WebPMux* mux, const WebPMuxFrameInfo* frame, int copy_data); - -// Gets the nth frame from the mux object. -// The content of 'frame->bitstream' is allocated using malloc(), and NOT -// owned by the 'mux' object. It MUST be deallocated by the caller by calling -// WebPDataClear(). -// nth=0 has a special meaning - last position. -// Parameters: -// mux - (in) object from which the info is to be fetched -// nth - (in) index of the frame in the mux object -// frame - (out) data of the returned frame -// Returns: -// WEBP_MUX_INVALID_ARGUMENT - if mux or frame is NULL. -// WEBP_MUX_NOT_FOUND - if there are less than nth frames in the mux object. -// WEBP_MUX_BAD_DATA - if nth frame chunk in mux is invalid. -// WEBP_MUX_MEMORY_ERROR - on memory allocation error. -// WEBP_MUX_OK - on success. -WEBP_EXTERN(WebPMuxError) WebPMuxGetFrame( - const WebPMux* mux, uint32_t nth, WebPMuxFrameInfo* frame); - -// Deletes a frame from the mux object. -// nth=0 has a special meaning - last position. -// Parameters: -// mux - (in/out) object from which a frame is to be deleted -// nth - (in) The position from which the frame is to be deleted -// Returns: -// WEBP_MUX_INVALID_ARGUMENT - if mux is NULL. -// WEBP_MUX_NOT_FOUND - If there are less than nth frames in the mux object -// before deletion. -// WEBP_MUX_OK - on success. -WEBP_EXTERN(WebPMuxError) WebPMuxDeleteFrame(WebPMux* mux, uint32_t nth); - -//------------------------------------------------------------------------------ -// Animation. - -// Animation parameters. -struct WebPMuxAnimParams { - uint32_t bgcolor; // Background color of the canvas stored (in MSB order) as: - // Bits 00 to 07: Alpha. - // Bits 08 to 15: Red. - // Bits 16 to 23: Green. - // Bits 24 to 31: Blue. - int loop_count; // Number of times to repeat the animation [0 = infinite]. -}; - -// Sets the animation parameters in the mux object. Any existing ANIM chunks -// will be removed. -// Parameters: -// mux - (in/out) object in which ANIM chunk is to be set/added -// params - (in) animation parameters. -// Returns: -// WEBP_MUX_INVALID_ARGUMENT - if mux or params is NULL. -// WEBP_MUX_MEMORY_ERROR - on memory allocation error. -// WEBP_MUX_OK - on success. -WEBP_EXTERN(WebPMuxError) WebPMuxSetAnimationParams( - WebPMux* mux, const WebPMuxAnimParams* params); - -// Gets the animation parameters from the mux object. -// Parameters: -// mux - (in) object from which the animation parameters to be fetched -// params - (out) animation parameters extracted from the ANIM chunk -// Returns: -// WEBP_MUX_INVALID_ARGUMENT - if mux or params is NULL. -// WEBP_MUX_NOT_FOUND - if ANIM chunk is not present in mux object. -// WEBP_MUX_OK - on success. -WEBP_EXTERN(WebPMuxError) WebPMuxGetAnimationParams( - const WebPMux* mux, WebPMuxAnimParams* params); - -//------------------------------------------------------------------------------ -// Misc Utilities. - -// Sets the canvas size for the mux object. The width and height can be -// specified explicitly or left as zero (0, 0). -// * When width and height are specified explicitly, then this frame bound is -// enforced during subsequent calls to WebPMuxAssemble() and an error is -// reported if any animated frame does not completely fit within the canvas. -// * When unspecified (0, 0), the constructed canvas will get the frame bounds -// from the bounding-box over all frames after calling WebPMuxAssemble(). -// Parameters: -// mux - (in) object to which the canvas size is to be set -// width - (in) canvas width -// height - (in) canvas height -// Returns: -// WEBP_MUX_INVALID_ARGUMENT - if mux is NULL; or -// width or height are invalid or out of bounds -// WEBP_MUX_OK - on success. -WEBP_EXTERN(WebPMuxError) WebPMuxSetCanvasSize(WebPMux* mux, - int width, int height); - -// Gets the canvas size from the mux object. -// Note: This method assumes that the VP8X chunk, if present, is up-to-date. -// That is, the mux object hasn't been modified since the last call to -// WebPMuxAssemble() or WebPMuxCreate(). -// Parameters: -// mux - (in) object from which the canvas size is to be fetched -// width - (out) canvas width -// height - (out) canvas height -// Returns: -// WEBP_MUX_INVALID_ARGUMENT - if mux, width or height is NULL. -// WEBP_MUX_BAD_DATA - if VP8X/VP8/VP8L chunk or canvas size is invalid. -// WEBP_MUX_OK - on success. -WEBP_EXTERN(WebPMuxError) WebPMuxGetCanvasSize(const WebPMux* mux, - int* width, int* height); - -// Gets the feature flags from the mux object. -// Note: This method assumes that the VP8X chunk, if present, is up-to-date. -// That is, the mux object hasn't been modified since the last call to -// WebPMuxAssemble() or WebPMuxCreate(). -// Parameters: -// mux - (in) object from which the features are to be fetched -// flags - (out) the flags specifying which features are present in the -// mux object. This will be an OR of various flag values. -// Enum 'WebPFeatureFlags' can be used to test individual flag values. -// Returns: -// WEBP_MUX_INVALID_ARGUMENT - if mux or flags is NULL. -// WEBP_MUX_BAD_DATA - if VP8X/VP8/VP8L chunk or canvas size is invalid. -// WEBP_MUX_OK - on success. -WEBP_EXTERN(WebPMuxError) WebPMuxGetFeatures(const WebPMux* mux, - uint32_t* flags); - -// Gets number of chunks with the given 'id' in the mux object. -// Parameters: -// mux - (in) object from which the info is to be fetched -// id - (in) chunk id specifying the type of chunk -// num_elements - (out) number of chunks with the given chunk id -// Returns: -// WEBP_MUX_INVALID_ARGUMENT - if mux, or num_elements is NULL. -// WEBP_MUX_OK - on success. -WEBP_EXTERN(WebPMuxError) WebPMuxNumChunks(const WebPMux* mux, - WebPChunkId id, int* num_elements); - -// Assembles all chunks in WebP RIFF format and returns in 'assembled_data'. -// This function also validates the mux object. -// Note: The content of 'assembled_data' will be ignored and overwritten. -// Also, the content of 'assembled_data' is allocated using malloc(), and NOT -// owned by the 'mux' object. It MUST be deallocated by the caller by calling -// WebPDataClear(). It's always safe to call WebPDataClear() upon return, -// even in case of error. -// Parameters: -// mux - (in/out) object whose chunks are to be assembled -// assembled_data - (out) assembled WebP data -// Returns: -// WEBP_MUX_BAD_DATA - if mux object is invalid. -// WEBP_MUX_INVALID_ARGUMENT - if mux or assembled_data is NULL. -// WEBP_MUX_MEMORY_ERROR - on memory allocation error. -// WEBP_MUX_OK - on success. -WEBP_EXTERN(WebPMuxError) WebPMuxAssemble(WebPMux* mux, - WebPData* assembled_data); - -//------------------------------------------------------------------------------ -// WebPAnimEncoder API -// -// This API allows encoding (possibly) animated WebP images. -// -// Code Example: -/* - WebPAnimEncoderOptions enc_options; - WebPAnimEncoderOptionsInit(&enc_options); - // Tune 'enc_options' as needed. - WebPAnimEncoder* enc = WebPAnimEncoderNew(width, height, &enc_options); - while(<there are more frames>) { - WebPConfig config; - WebPConfigInit(&config); - // Tune 'config' as needed. - WebPAnimEncoderAdd(enc, frame, timestamp_ms, &config); - } - WebPAnimEncoderAdd(enc, NULL, timestamp_ms, NULL); - WebPAnimEncoderAssemble(enc, webp_data); - WebPAnimEncoderDelete(enc); - // Write the 'webp_data' to a file, or re-mux it further. -*/ - -typedef struct WebPAnimEncoder WebPAnimEncoder; // Main opaque object. - -// Forward declarations. Defined in encode.h. -struct WebPPicture; -struct WebPConfig; - -// Global options. -struct WebPAnimEncoderOptions { - WebPMuxAnimParams anim_params; // Animation parameters. - int minimize_size; // If true, minimize the output size (slow). Implicitly - // disables key-frame insertion. - int kmin; - int kmax; // Minimum and maximum distance between consecutive key - // frames in the output. The library may insert some key - // frames as needed to satisfy this criteria. - // Note that these conditions should hold: kmax > kmin - // and kmin >= kmax / 2 + 1. Also, if kmin == 0, then - // key-frame insertion is disabled; and if kmax == 0, - // then all frames will be key-frames. - int allow_mixed; // If true, use mixed compression mode; may choose - // either lossy and lossless for each frame. - int verbose; // If true, print info and warning messages to stderr. - - uint32_t padding[4]; // Padding for later use. -}; - -// Internal, version-checked, entry point. -WEBP_EXTERN(int) WebPAnimEncoderOptionsInitInternal( - WebPAnimEncoderOptions*, int); - -// Should always be called, to initialize a fresh WebPAnimEncoderOptions -// structure before modification. Returns false in case of version mismatch. -// WebPAnimEncoderOptionsInit() must have succeeded before using the -// 'enc_options' object. -static WEBP_INLINE int WebPAnimEncoderOptionsInit( - WebPAnimEncoderOptions* enc_options) { - return WebPAnimEncoderOptionsInitInternal(enc_options, WEBP_MUX_ABI_VERSION); -} - -// Internal, version-checked, entry point. -WEBP_EXTERN(WebPAnimEncoder*) WebPAnimEncoderNewInternal( - int, int, const WebPAnimEncoderOptions*, int); - -// Creates and initializes a WebPAnimEncoder object. -// Parameters: -// width/height - (in) canvas width and height of the animation. -// enc_options - (in) encoding options; can be passed NULL to pick -// reasonable defaults. -// Returns: -// A pointer to the newly created WebPAnimEncoder object. -// Or NULL in case of memory error. -static WEBP_INLINE WebPAnimEncoder* WebPAnimEncoderNew( - int width, int height, const WebPAnimEncoderOptions* enc_options) { - return WebPAnimEncoderNewInternal(width, height, enc_options, - WEBP_MUX_ABI_VERSION); -} - -// Optimize the given frame for WebP, encode it and add it to the -// WebPAnimEncoder object. -// The last call to 'WebPAnimEncoderAdd' should be with frame = NULL, which -// indicates that no more frames are to be added. This call is also used to -// determine the duration of the last frame. -// Parameters: -// enc - (in/out) object to which the frame is to be added. -// frame - (in/out) frame data in ARGB or YUV(A) format. If it is in YUV(A) -// format, it will be converted to ARGB, which incurs a small loss. -// timestamp_ms - (in) timestamp of this frame in milliseconds. -// Duration of a frame would be calculated as -// "timestamp of next frame - timestamp of this frame". -// Hence, timestamps should be in non-decreasing order. -// config - (in) encoding options; can be passed NULL to pick -// reasonable defaults. -// Returns: -// On error, returns false and frame->error_code is set appropriately. -// Otherwise, returns true. -WEBP_EXTERN(int) WebPAnimEncoderAdd( - WebPAnimEncoder* enc, struct WebPPicture* frame, int timestamp_ms, - const struct WebPConfig* config); - -// Assemble all frames added so far into a WebP bitstream. -// This call should be preceded by a call to 'WebPAnimEncoderAdd' with -// frame = NULL; if not, the duration of the last frame will be internally -// estimated. -// Parameters: -// enc - (in/out) object from which the frames are to be assembled. -// webp_data - (out) generated WebP bitstream. -// Returns: -// True on success. -WEBP_EXTERN(int) WebPAnimEncoderAssemble(WebPAnimEncoder* enc, - WebPData* webp_data); - -// Get error string corresponding to the most recent call using 'enc'. The -// returned string is owned by 'enc' and is valid only until the next call to -// WebPAnimEncoderAdd() or WebPAnimEncoderAssemble() or WebPAnimEncoderDelete(). -// Parameters: -// enc - (in/out) object from which the error string is to be fetched. -// Returns: -// NULL if 'enc' is NULL. Otherwise, returns the error string if the last call -// to 'enc' had an error, or an empty string if the last call was a success. -WEBP_EXTERN(const char*) WebPAnimEncoderGetError(WebPAnimEncoder* enc); - -// Deletes the WebPAnimEncoder object. -// Parameters: -// enc - (in/out) object to be deleted -WEBP_EXTERN(void) WebPAnimEncoderDelete(WebPAnimEncoder* enc); - -//------------------------------------------------------------------------------ - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_WEBP_MUX_H_ */ diff --git a/drivers/webp/mux/anim_encode.c b/drivers/webp/mux/anim_encode.c deleted file mode 100644 index 2226febf13..0000000000 --- a/drivers/webp/mux/anim_encode.c +++ /dev/null @@ -1,1534 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// AnimEncoder implementation. -// - -#include <assert.h> -#include <limits.h> -#include <math.h> // for pow() -#include <stdio.h> -#include <stdlib.h> // for abs() - -#include "../utils/utils.h" -#include "webp/decode.h" -#include "webp/encode.h" -#include "webp/format_constants.h" -#include "webp/mux.h" - -#if defined(_MSC_VER) && _MSC_VER < 1900 -#define snprintf _snprintf -#endif - -#define ERROR_STR_MAX_LENGTH 100 - -//------------------------------------------------------------------------------ -// Internal structs. - -// Stores frame rectangle dimensions. -typedef struct { - int x_offset_, y_offset_, width_, height_; -} FrameRect; - -// Used to store two candidates of encoded data for an animation frame. One of -// the two will be chosen later. -typedef struct { - WebPMuxFrameInfo sub_frame_; // Encoded frame rectangle. - WebPMuxFrameInfo key_frame_; // Encoded frame if it is a key-frame. - int is_key_frame_; // True if 'key_frame' has been chosen. -} EncodedFrame; - -struct WebPAnimEncoder { - const int canvas_width_; // Canvas width. - const int canvas_height_; // Canvas height. - const WebPAnimEncoderOptions options_; // Global encoding options. - - FrameRect prev_rect_; // Previous WebP frame rectangle. - WebPConfig last_config_; // Cached in case a re-encode is needed. - WebPConfig last_config_reversed_; // If 'last_config_' uses lossless, then - // this config uses lossy and vice versa; - // only valid if 'options_.allow_mixed' - // is true. - - WebPPicture* curr_canvas_; // Only pointer; we don't own memory. - - // Canvas buffers. - WebPPicture curr_canvas_copy_; // Possibly modified current canvas. - int curr_canvas_copy_modified_; // True if pixels in 'curr_canvas_copy_' - // differ from those in 'curr_canvas_'. - - WebPPicture prev_canvas_; // Previous canvas. - WebPPicture prev_canvas_disposed_; // Previous canvas disposed to background. - - // Encoded data. - EncodedFrame* encoded_frames_; // Array of encoded frames. - size_t size_; // Number of allocated frames. - size_t start_; // Frame start index. - size_t count_; // Number of valid frames. - size_t flush_count_; // If >0, 'flush_count' frames starting from - // 'start' are ready to be added to mux. - - // key-frame related. - int64_t best_delta_; // min(canvas size - frame size) over the frames. - // Can be negative in certain cases due to - // transparent pixels in a frame. - int keyframe_; // Index of selected key-frame relative to 'start_'. - int count_since_key_frame_; // Frames seen since the last key-frame. - - int first_timestamp_; // Timestamp of the first frame. - int prev_timestamp_; // Timestamp of the last added frame. - int prev_candidate_undecided_; // True if it's not yet decided if previous - // frame would be a sub-frame or a key-frame. - - // Misc. - int is_first_frame_; // True if first frame is yet to be added/being added. - int got_null_frame_; // True if WebPAnimEncoderAdd() has already been called - // with a NULL frame. - - size_t in_frame_count_; // Number of input frames processed so far. - size_t out_frame_count_; // Number of frames added to mux so far. This may be - // different from 'in_frame_count_' due to merging. - - WebPMux* mux_; // Muxer to assemble the WebP bitstream. - char error_str_[ERROR_STR_MAX_LENGTH]; // Error string. Empty if no error. -}; - -// ----------------------------------------------------------------------------- -// Life of WebPAnimEncoder object. - -#define DELTA_INFINITY (1ULL << 32) -#define KEYFRAME_NONE (-1) - -// Reset the counters in the WebPAnimEncoder. -static void ResetCounters(WebPAnimEncoder* const enc) { - enc->start_ = 0; - enc->count_ = 0; - enc->flush_count_ = 0; - enc->best_delta_ = DELTA_INFINITY; - enc->keyframe_ = KEYFRAME_NONE; -} - -static void DisableKeyframes(WebPAnimEncoderOptions* const enc_options) { - enc_options->kmax = INT_MAX; - enc_options->kmin = enc_options->kmax - 1; -} - -#define MAX_CACHED_FRAMES 30 - -static void SanitizeEncoderOptions(WebPAnimEncoderOptions* const enc_options) { - int print_warning = enc_options->verbose; - - if (enc_options->minimize_size) { - DisableKeyframes(enc_options); - } - - if (enc_options->kmin <= 0) { - DisableKeyframes(enc_options); - print_warning = 0; - } - if (enc_options->kmax <= 0) { // All frames will be key-frames. - enc_options->kmin = 0; - enc_options->kmax = 0; - return; - } - - if (enc_options->kmin >= enc_options->kmax) { - enc_options->kmin = enc_options->kmax - 1; - if (print_warning) { - fprintf(stderr, "WARNING: Setting kmin = %d, so that kmin < kmax.\n", - enc_options->kmin); - } - } else { - const int kmin_limit = enc_options->kmax / 2 + 1; - if (enc_options->kmin < kmin_limit && kmin_limit < enc_options->kmax) { - // This ensures that enc.keyframe + kmin >= kmax is always true. So, we - // can flush all the frames in the 'count_since_key_frame == kmax' case. - enc_options->kmin = kmin_limit; - if (print_warning) { - fprintf(stderr, - "WARNING: Setting kmin = %d, so that kmin >= kmax / 2 + 1.\n", - enc_options->kmin); - } - } - } - // Limit the max number of frames that are allocated. - if (enc_options->kmax - enc_options->kmin > MAX_CACHED_FRAMES) { - enc_options->kmin = enc_options->kmax - MAX_CACHED_FRAMES; - if (print_warning) { - fprintf(stderr, - "WARNING: Setting kmin = %d, so that kmax - kmin <= %d.\n", - enc_options->kmin, MAX_CACHED_FRAMES); - } - } - assert(enc_options->kmin < enc_options->kmax); -} - -#undef MAX_CACHED_FRAMES - -static void DefaultEncoderOptions(WebPAnimEncoderOptions* const enc_options) { - enc_options->anim_params.loop_count = 0; - enc_options->anim_params.bgcolor = 0xffffffff; // White. - enc_options->minimize_size = 0; - DisableKeyframes(enc_options); - enc_options->allow_mixed = 0; - enc_options->verbose = 0; -} - -int WebPAnimEncoderOptionsInitInternal(WebPAnimEncoderOptions* enc_options, - int abi_version) { - if (enc_options == NULL || - WEBP_ABI_IS_INCOMPATIBLE(abi_version, WEBP_MUX_ABI_VERSION)) { - return 0; - } - DefaultEncoderOptions(enc_options); - return 1; -} - -// This starting value is more fit to WebPCleanupTransparentAreaLossless(). -#define TRANSPARENT_COLOR 0x00000000 - -static void ClearRectangle(WebPPicture* const picture, - int left, int top, int width, int height) { - int j; - for (j = top; j < top + height; ++j) { - uint32_t* const dst = picture->argb + j * picture->argb_stride; - int i; - for (i = left; i < left + width; ++i) { - dst[i] = TRANSPARENT_COLOR; - } - } -} - -static void WebPUtilClearPic(WebPPicture* const picture, - const FrameRect* const rect) { - if (rect != NULL) { - ClearRectangle(picture, rect->x_offset_, rect->y_offset_, - rect->width_, rect->height_); - } else { - ClearRectangle(picture, 0, 0, picture->width, picture->height); - } -} - -static void MarkNoError(WebPAnimEncoder* const enc) { - enc->error_str_[0] = '\0'; // Empty string. -} - -static void MarkError(WebPAnimEncoder* const enc, const char* str) { - if (snprintf(enc->error_str_, ERROR_STR_MAX_LENGTH, "%s.", str) < 0) { - assert(0); // FIX ME! - } -} - -static void MarkError2(WebPAnimEncoder* const enc, - const char* str, int error_code) { - if (snprintf(enc->error_str_, ERROR_STR_MAX_LENGTH, "%s: %d.", str, - error_code) < 0) { - assert(0); // FIX ME! - } -} - -WebPAnimEncoder* WebPAnimEncoderNewInternal( - int width, int height, const WebPAnimEncoderOptions* enc_options, - int abi_version) { - WebPAnimEncoder* enc; - - if (WEBP_ABI_IS_INCOMPATIBLE(abi_version, WEBP_MUX_ABI_VERSION)) { - return NULL; - } - if (width <= 0 || height <= 0 || - (width * (uint64_t)height) >= MAX_IMAGE_AREA) { - return NULL; - } - - enc = (WebPAnimEncoder*)WebPSafeCalloc(1, sizeof(*enc)); - if (enc == NULL) return NULL; - // sanity inits, so we can call WebPAnimEncoderDelete(): - enc->encoded_frames_ = NULL; - enc->mux_ = NULL; - MarkNoError(enc); - - // Dimensions and options. - *(int*)&enc->canvas_width_ = width; - *(int*)&enc->canvas_height_ = height; - if (enc_options != NULL) { - *(WebPAnimEncoderOptions*)&enc->options_ = *enc_options; - SanitizeEncoderOptions((WebPAnimEncoderOptions*)&enc->options_); - } else { - DefaultEncoderOptions((WebPAnimEncoderOptions*)&enc->options_); - } - - // Canvas buffers. - if (!WebPPictureInit(&enc->curr_canvas_copy_) || - !WebPPictureInit(&enc->prev_canvas_) || - !WebPPictureInit(&enc->prev_canvas_disposed_)) { - goto Err; - } - enc->curr_canvas_copy_.width = width; - enc->curr_canvas_copy_.height = height; - enc->curr_canvas_copy_.use_argb = 1; - if (!WebPPictureAlloc(&enc->curr_canvas_copy_) || - !WebPPictureCopy(&enc->curr_canvas_copy_, &enc->prev_canvas_) || - !WebPPictureCopy(&enc->curr_canvas_copy_, &enc->prev_canvas_disposed_)) { - goto Err; - } - WebPUtilClearPic(&enc->prev_canvas_, NULL); - enc->curr_canvas_copy_modified_ = 1; - - // Encoded frames. - ResetCounters(enc); - // Note: one extra storage is for the previous frame. - enc->size_ = enc->options_.kmax - enc->options_.kmin + 1; - // We need space for at least 2 frames. But when kmin, kmax are both zero, - // enc->size_ will be 1. So we handle that special case below. - if (enc->size_ < 2) enc->size_ = 2; - enc->encoded_frames_ = - (EncodedFrame*)WebPSafeCalloc(enc->size_, sizeof(*enc->encoded_frames_)); - if (enc->encoded_frames_ == NULL) goto Err; - - enc->mux_ = WebPMuxNew(); - if (enc->mux_ == NULL) goto Err; - - enc->count_since_key_frame_ = 0; - enc->first_timestamp_ = 0; - enc->prev_timestamp_ = 0; - enc->prev_candidate_undecided_ = 0; - enc->is_first_frame_ = 1; - enc->got_null_frame_ = 0; - - return enc; // All OK. - - Err: - WebPAnimEncoderDelete(enc); - return NULL; -} - -// Release the data contained by 'encoded_frame'. -static void FrameRelease(EncodedFrame* const encoded_frame) { - if (encoded_frame != NULL) { - WebPDataClear(&encoded_frame->sub_frame_.bitstream); - WebPDataClear(&encoded_frame->key_frame_.bitstream); - memset(encoded_frame, 0, sizeof(*encoded_frame)); - } -} - -void WebPAnimEncoderDelete(WebPAnimEncoder* enc) { - if (enc != NULL) { - WebPPictureFree(&enc->curr_canvas_copy_); - WebPPictureFree(&enc->prev_canvas_); - WebPPictureFree(&enc->prev_canvas_disposed_); - if (enc->encoded_frames_ != NULL) { - size_t i; - for (i = 0; i < enc->size_; ++i) { - FrameRelease(&enc->encoded_frames_[i]); - } - WebPSafeFree(enc->encoded_frames_); - } - WebPMuxDelete(enc->mux_); - WebPSafeFree(enc); - } -} - -// ----------------------------------------------------------------------------- -// Frame addition. - -// Returns cached frame at the given 'position'. -static EncodedFrame* GetFrame(const WebPAnimEncoder* const enc, - size_t position) { - assert(enc->start_ + position < enc->size_); - return &enc->encoded_frames_[enc->start_ + position]; -} - -typedef int (*ComparePixelsFunc)(const uint32_t*, int, const uint32_t*, int, - int, int); - -// Returns true if 'length' number of pixels in 'src' and 'dst' are equal, -// assuming the given step sizes between pixels. -// 'max_allowed_diff' is unused and only there to allow function pointer use. -static WEBP_INLINE int ComparePixelsLossless(const uint32_t* src, int src_step, - const uint32_t* dst, int dst_step, - int length, int max_allowed_diff) { - (void)max_allowed_diff; - assert(length > 0); - while (length-- > 0) { - if (*src != *dst) { - return 0; - } - src += src_step; - dst += dst_step; - } - return 1; -} - -// Helper to check if each channel in 'src' and 'dst' is at most off by -// 'max_allowed_diff'. -static WEBP_INLINE int PixelsAreSimilar(uint32_t src, uint32_t dst, - int max_allowed_diff) { - const int src_a = (src >> 24) & 0xff; - const int src_r = (src >> 16) & 0xff; - const int src_g = (src >> 8) & 0xff; - const int src_b = (src >> 0) & 0xff; - const int dst_a = (dst >> 24) & 0xff; - const int dst_r = (dst >> 16) & 0xff; - const int dst_g = (dst >> 8) & 0xff; - const int dst_b = (dst >> 0) & 0xff; - - return (abs(src_r * src_a - dst_r * dst_a) <= (max_allowed_diff * 255)) && - (abs(src_g * src_a - dst_g * dst_a) <= (max_allowed_diff * 255)) && - (abs(src_b * src_a - dst_b * dst_a) <= (max_allowed_diff * 255)) && - (abs(src_a - dst_a) <= max_allowed_diff); -} - -// Returns true if 'length' number of pixels in 'src' and 'dst' are within an -// error bound, assuming the given step sizes between pixels. -static WEBP_INLINE int ComparePixelsLossy(const uint32_t* src, int src_step, - const uint32_t* dst, int dst_step, - int length, int max_allowed_diff) { - assert(length > 0); - while (length-- > 0) { - if (!PixelsAreSimilar(*src, *dst, max_allowed_diff)) { - return 0; - } - src += src_step; - dst += dst_step; - } - return 1; -} - -static int IsEmptyRect(const FrameRect* const rect) { - return (rect->width_ == 0) || (rect->height_ == 0); -} - -static int QualityToMaxDiff(float quality) { - const double val = pow(quality / 100., 0.5); - const double max_diff = 31 * (1 - val) + 1 * val; - return (int)(max_diff + 0.5); -} - -// Assumes that an initial valid guess of change rectangle 'rect' is passed. -static void MinimizeChangeRectangle(const WebPPicture* const src, - const WebPPicture* const dst, - FrameRect* const rect, - int is_lossless, float quality) { - int i, j; - const ComparePixelsFunc compare_pixels = - is_lossless ? ComparePixelsLossless : ComparePixelsLossy; - const int max_allowed_diff_lossy = QualityToMaxDiff(quality); - const int max_allowed_diff = is_lossless ? 0 : max_allowed_diff_lossy; - - // Sanity checks. - assert(src->width == dst->width && src->height == dst->height); - assert(rect->x_offset_ + rect->width_ <= dst->width); - assert(rect->y_offset_ + rect->height_ <= dst->height); - - // Left boundary. - for (i = rect->x_offset_; i < rect->x_offset_ + rect->width_; ++i) { - const uint32_t* const src_argb = - &src->argb[rect->y_offset_ * src->argb_stride + i]; - const uint32_t* const dst_argb = - &dst->argb[rect->y_offset_ * dst->argb_stride + i]; - if (compare_pixels(src_argb, src->argb_stride, dst_argb, dst->argb_stride, - rect->height_, max_allowed_diff)) { - --rect->width_; // Redundant column. - ++rect->x_offset_; - } else { - break; - } - } - if (rect->width_ == 0) goto NoChange; - - // Right boundary. - for (i = rect->x_offset_ + rect->width_ - 1; i >= rect->x_offset_; --i) { - const uint32_t* const src_argb = - &src->argb[rect->y_offset_ * src->argb_stride + i]; - const uint32_t* const dst_argb = - &dst->argb[rect->y_offset_ * dst->argb_stride + i]; - if (compare_pixels(src_argb, src->argb_stride, dst_argb, dst->argb_stride, - rect->height_, max_allowed_diff)) { - --rect->width_; // Redundant column. - } else { - break; - } - } - if (rect->width_ == 0) goto NoChange; - - // Top boundary. - for (j = rect->y_offset_; j < rect->y_offset_ + rect->height_; ++j) { - const uint32_t* const src_argb = - &src->argb[j * src->argb_stride + rect->x_offset_]; - const uint32_t* const dst_argb = - &dst->argb[j * dst->argb_stride + rect->x_offset_]; - if (compare_pixels(src_argb, 1, dst_argb, 1, rect->width_, - max_allowed_diff)) { - --rect->height_; // Redundant row. - ++rect->y_offset_; - } else { - break; - } - } - if (rect->height_ == 0) goto NoChange; - - // Bottom boundary. - for (j = rect->y_offset_ + rect->height_ - 1; j >= rect->y_offset_; --j) { - const uint32_t* const src_argb = - &src->argb[j * src->argb_stride + rect->x_offset_]; - const uint32_t* const dst_argb = - &dst->argb[j * dst->argb_stride + rect->x_offset_]; - if (compare_pixels(src_argb, 1, dst_argb, 1, rect->width_, - max_allowed_diff)) { - --rect->height_; // Redundant row. - } else { - break; - } - } - if (rect->height_ == 0) goto NoChange; - - if (IsEmptyRect(rect)) { - NoChange: - rect->x_offset_ = 0; - rect->y_offset_ = 0; - rect->width_ = 0; - rect->height_ = 0; - } -} - -// Snap rectangle to even offsets (and adjust dimensions if needed). -static WEBP_INLINE void SnapToEvenOffsets(FrameRect* const rect) { - rect->width_ += (rect->x_offset_ & 1); - rect->height_ += (rect->y_offset_ & 1); - rect->x_offset_ &= ~1; - rect->y_offset_ &= ~1; -} - -typedef struct { - int should_try_; // Should try this set of parameters. - int empty_rect_allowed_; // Frame with empty rectangle can be skipped. - FrameRect rect_ll_; // Frame rectangle for lossless compression. - WebPPicture sub_frame_ll_; // Sub-frame pic for lossless compression. - FrameRect rect_lossy_; // Frame rectangle for lossy compression. - // Could be smaller than rect_ll_ as pixels - // with small diffs can be ignored. - WebPPicture sub_frame_lossy_; // Sub-frame pic for lossless compression. -} SubFrameParams; - -static int SubFrameParamsInit(SubFrameParams* const params, - int should_try, int empty_rect_allowed) { - params->should_try_ = should_try; - params->empty_rect_allowed_ = empty_rect_allowed; - if (!WebPPictureInit(¶ms->sub_frame_ll_) || - !WebPPictureInit(¶ms->sub_frame_lossy_)) { - return 0; - } - return 1; -} - -static void SubFrameParamsFree(SubFrameParams* const params) { - WebPPictureFree(¶ms->sub_frame_ll_); - WebPPictureFree(¶ms->sub_frame_lossy_); -} - -// Given previous and current canvas, picks the optimal rectangle for the -// current frame based on 'is_lossless' and other parameters. Assumes that the -// initial guess 'rect' is valid. -static int GetSubRect(const WebPPicture* const prev_canvas, - const WebPPicture* const curr_canvas, int is_key_frame, - int is_first_frame, int empty_rect_allowed, - int is_lossless, float quality, FrameRect* const rect, - WebPPicture* const sub_frame) { - if (!is_key_frame || is_first_frame) { // Optimize frame rectangle. - // Note: This behaves as expected for first frame, as 'prev_canvas' is - // initialized to a fully transparent canvas in the beginning. - MinimizeChangeRectangle(prev_canvas, curr_canvas, rect, - is_lossless, quality); - } - - if (IsEmptyRect(rect)) { - if (empty_rect_allowed) { // No need to get 'sub_frame'. - return 1; - } else { // Force a 1x1 rectangle. - rect->width_ = 1; - rect->height_ = 1; - assert(rect->x_offset_ == 0); - assert(rect->y_offset_ == 0); - } - } - - SnapToEvenOffsets(rect); - return WebPPictureView(curr_canvas, rect->x_offset_, rect->y_offset_, - rect->width_, rect->height_, sub_frame); -} - -// Picks optimal frame rectangle for both lossless and lossy compression. The -// initial guess for frame rectangles will be the full canvas. -static int GetSubRects(const WebPPicture* const prev_canvas, - const WebPPicture* const curr_canvas, int is_key_frame, - int is_first_frame, float quality, - SubFrameParams* const params) { - // Lossless frame rectangle. - params->rect_ll_.x_offset_ = 0; - params->rect_ll_.y_offset_ = 0; - params->rect_ll_.width_ = curr_canvas->width; - params->rect_ll_.height_ = curr_canvas->height; - if (!GetSubRect(prev_canvas, curr_canvas, is_key_frame, is_first_frame, - params->empty_rect_allowed_, 1, quality, - ¶ms->rect_ll_, ¶ms->sub_frame_ll_)) { - return 0; - } - // Lossy frame rectangle. - params->rect_lossy_ = params->rect_ll_; // seed with lossless rect. - return GetSubRect(prev_canvas, curr_canvas, is_key_frame, is_first_frame, - params->empty_rect_allowed_, 0, quality, - ¶ms->rect_lossy_, ¶ms->sub_frame_lossy_); -} - -static void DisposeFrameRectangle(int dispose_method, - const FrameRect* const rect, - WebPPicture* const curr_canvas) { - assert(rect != NULL); - if (dispose_method == WEBP_MUX_DISPOSE_BACKGROUND) { - WebPUtilClearPic(curr_canvas, rect); - } -} - -static uint32_t RectArea(const FrameRect* const rect) { - return (uint32_t)rect->width_ * rect->height_; -} - -static int IsLosslessBlendingPossible(const WebPPicture* const src, - const WebPPicture* const dst, - const FrameRect* const rect) { - int i, j; - assert(src->width == dst->width && src->height == dst->height); - assert(rect->x_offset_ + rect->width_ <= dst->width); - assert(rect->y_offset_ + rect->height_ <= dst->height); - for (j = rect->y_offset_; j < rect->y_offset_ + rect->height_; ++j) { - for (i = rect->x_offset_; i < rect->x_offset_ + rect->width_; ++i) { - const uint32_t src_pixel = src->argb[j * src->argb_stride + i]; - const uint32_t dst_pixel = dst->argb[j * dst->argb_stride + i]; - const uint32_t dst_alpha = dst_pixel >> 24; - if (dst_alpha != 0xff && src_pixel != dst_pixel) { - // In this case, if we use blending, we can't attain the desired - // 'dst_pixel' value for this pixel. So, blending is not possible. - return 0; - } - } - } - return 1; -} - -static int IsLossyBlendingPossible(const WebPPicture* const src, - const WebPPicture* const dst, - const FrameRect* const rect, - float quality) { - const int max_allowed_diff_lossy = QualityToMaxDiff(quality); - int i, j; - assert(src->width == dst->width && src->height == dst->height); - assert(rect->x_offset_ + rect->width_ <= dst->width); - assert(rect->y_offset_ + rect->height_ <= dst->height); - for (j = rect->y_offset_; j < rect->y_offset_ + rect->height_; ++j) { - for (i = rect->x_offset_; i < rect->x_offset_ + rect->width_; ++i) { - const uint32_t src_pixel = src->argb[j * src->argb_stride + i]; - const uint32_t dst_pixel = dst->argb[j * dst->argb_stride + i]; - const uint32_t dst_alpha = dst_pixel >> 24; - if (dst_alpha != 0xff && - !PixelsAreSimilar(src_pixel, dst_pixel, max_allowed_diff_lossy)) { - // In this case, if we use blending, we can't attain the desired - // 'dst_pixel' value for this pixel. So, blending is not possible. - return 0; - } - } - } - return 1; -} - -// For pixels in 'rect', replace those pixels in 'dst' that are same as 'src' by -// transparent pixels. -// Returns true if at least one pixel gets modified. -static int IncreaseTransparency(const WebPPicture* const src, - const FrameRect* const rect, - WebPPicture* const dst) { - int i, j; - int modified = 0; - assert(src != NULL && dst != NULL && rect != NULL); - assert(src->width == dst->width && src->height == dst->height); - for (j = rect->y_offset_; j < rect->y_offset_ + rect->height_; ++j) { - const uint32_t* const psrc = src->argb + j * src->argb_stride; - uint32_t* const pdst = dst->argb + j * dst->argb_stride; - for (i = rect->x_offset_; i < rect->x_offset_ + rect->width_; ++i) { - if (psrc[i] == pdst[i] && pdst[i] != TRANSPARENT_COLOR) { - pdst[i] = TRANSPARENT_COLOR; - modified = 1; - } - } - } - return modified; -} - -#undef TRANSPARENT_COLOR - -// Replace similar blocks of pixels by a 'see-through' transparent block -// with uniform average color. -// Assumes lossy compression is being used. -// Returns true if at least one pixel gets modified. -static int FlattenSimilarBlocks(const WebPPicture* const src, - const FrameRect* const rect, - WebPPicture* const dst, float quality) { - const int max_allowed_diff_lossy = QualityToMaxDiff(quality); - int i, j; - int modified = 0; - const int block_size = 8; - const int y_start = (rect->y_offset_ + block_size) & ~(block_size - 1); - const int y_end = (rect->y_offset_ + rect->height_) & ~(block_size - 1); - const int x_start = (rect->x_offset_ + block_size) & ~(block_size - 1); - const int x_end = (rect->x_offset_ + rect->width_) & ~(block_size - 1); - assert(src != NULL && dst != NULL && rect != NULL); - assert(src->width == dst->width && src->height == dst->height); - assert((block_size & (block_size - 1)) == 0); // must be a power of 2 - // Iterate over each block and count similar pixels. - for (j = y_start; j < y_end; j += block_size) { - for (i = x_start; i < x_end; i += block_size) { - int cnt = 0; - int avg_r = 0, avg_g = 0, avg_b = 0; - int x, y; - const uint32_t* const psrc = src->argb + j * src->argb_stride + i; - uint32_t* const pdst = dst->argb + j * dst->argb_stride + i; - for (y = 0; y < block_size; ++y) { - for (x = 0; x < block_size; ++x) { - const uint32_t src_pixel = psrc[x + y * src->argb_stride]; - const int alpha = src_pixel >> 24; - if (alpha == 0xff && - PixelsAreSimilar(src_pixel, pdst[x + y * dst->argb_stride], - max_allowed_diff_lossy)) { - ++cnt; - avg_r += (src_pixel >> 16) & 0xff; - avg_g += (src_pixel >> 8) & 0xff; - avg_b += (src_pixel >> 0) & 0xff; - } - } - } - // If we have a fully similar block, we replace it with an - // average transparent block. This compresses better in lossy mode. - if (cnt == block_size * block_size) { - const uint32_t color = (0x00 << 24) | - ((avg_r / cnt) << 16) | - ((avg_g / cnt) << 8) | - ((avg_b / cnt) << 0); - for (y = 0; y < block_size; ++y) { - for (x = 0; x < block_size; ++x) { - pdst[x + y * dst->argb_stride] = color; - } - } - modified = 1; - } - } - } - return modified; -} - -static int EncodeFrame(const WebPConfig* const config, WebPPicture* const pic, - WebPMemoryWriter* const memory) { - pic->use_argb = 1; - pic->writer = WebPMemoryWrite; - pic->custom_ptr = memory; - if (!WebPEncode(config, pic)) { - return 0; - } - return 1; -} - -// Struct representing a candidate encoded frame including its metadata. -typedef struct { - WebPMemoryWriter mem_; - WebPMuxFrameInfo info_; - FrameRect rect_; - int evaluate_; // True if this candidate should be evaluated. -} Candidate; - -// Generates a candidate encoded frame given a picture and metadata. -static WebPEncodingError EncodeCandidate(WebPPicture* const sub_frame, - const FrameRect* const rect, - const WebPConfig* const encoder_config, - int use_blending, - Candidate* const candidate) { - WebPConfig config = *encoder_config; - WebPEncodingError error_code = VP8_ENC_OK; - assert(candidate != NULL); - memset(candidate, 0, sizeof(*candidate)); - - // Set frame rect and info. - candidate->rect_ = *rect; - candidate->info_.id = WEBP_CHUNK_ANMF; - candidate->info_.x_offset = rect->x_offset_; - candidate->info_.y_offset = rect->y_offset_; - candidate->info_.dispose_method = WEBP_MUX_DISPOSE_NONE; // Set later. - candidate->info_.blend_method = - use_blending ? WEBP_MUX_BLEND : WEBP_MUX_NO_BLEND; - candidate->info_.duration = 0; // Set in next call to WebPAnimEncoderAdd(). - - // Encode picture. - WebPMemoryWriterInit(&candidate->mem_); - - if (!config.lossless && use_blending) { - // Disable filtering to avoid blockiness in reconstructed frames at the - // time of decoding. - config.autofilter = 0; - config.filter_strength = 0; - } - if (!EncodeFrame(&config, sub_frame, &candidate->mem_)) { - error_code = sub_frame->error_code; - goto Err; - } - - candidate->evaluate_ = 1; - return error_code; - - Err: - WebPMemoryWriterClear(&candidate->mem_); - return error_code; -} - -static void CopyCurrentCanvas(WebPAnimEncoder* const enc) { - if (enc->curr_canvas_copy_modified_) { - WebPCopyPixels(enc->curr_canvas_, &enc->curr_canvas_copy_); - enc->curr_canvas_copy_.progress_hook = enc->curr_canvas_->progress_hook; - enc->curr_canvas_copy_.user_data = enc->curr_canvas_->user_data; - enc->curr_canvas_copy_modified_ = 0; - } -} - -enum { - LL_DISP_NONE = 0, - LL_DISP_BG, - LOSSY_DISP_NONE, - LOSSY_DISP_BG, - CANDIDATE_COUNT -}; - -#define MIN_COLORS_LOSSY 31 // Don't try lossy below this threshold. -#define MAX_COLORS_LOSSLESS 194 // Don't try lossless above this threshold. - -// Generates candidates for a given dispose method given pre-filled sub-frame -// 'params'. -static WebPEncodingError GenerateCandidates( - WebPAnimEncoder* const enc, Candidate candidates[CANDIDATE_COUNT], - WebPMuxAnimDispose dispose_method, int is_lossless, int is_key_frame, - SubFrameParams* const params, - const WebPConfig* const config_ll, const WebPConfig* const config_lossy) { - WebPEncodingError error_code = VP8_ENC_OK; - const int is_dispose_none = (dispose_method == WEBP_MUX_DISPOSE_NONE); - Candidate* const candidate_ll = - is_dispose_none ? &candidates[LL_DISP_NONE] : &candidates[LL_DISP_BG]; - Candidate* const candidate_lossy = is_dispose_none - ? &candidates[LOSSY_DISP_NONE] - : &candidates[LOSSY_DISP_BG]; - WebPPicture* const curr_canvas = &enc->curr_canvas_copy_; - const WebPPicture* const prev_canvas = - is_dispose_none ? &enc->prev_canvas_ : &enc->prev_canvas_disposed_; - int use_blending_ll; - int use_blending_lossy; - - CopyCurrentCanvas(enc); - use_blending_ll = - !is_key_frame && - IsLosslessBlendingPossible(prev_canvas, curr_canvas, ¶ms->rect_ll_); - use_blending_lossy = - !is_key_frame && - IsLossyBlendingPossible(prev_canvas, curr_canvas, ¶ms->rect_lossy_, - config_lossy->quality); - - // Pick candidates to be tried. - if (!enc->options_.allow_mixed) { - candidate_ll->evaluate_ = is_lossless; - candidate_lossy->evaluate_ = !is_lossless; - } else { // Use a heuristic for trying lossless and/or lossy compression. - const int num_colors = WebPGetColorPalette(¶ms->sub_frame_ll_, NULL); - candidate_ll->evaluate_ = (num_colors < MAX_COLORS_LOSSLESS); - candidate_lossy->evaluate_ = (num_colors >= MIN_COLORS_LOSSY); - } - - // Generate candidates. - if (candidate_ll->evaluate_) { - CopyCurrentCanvas(enc); - if (use_blending_ll) { - enc->curr_canvas_copy_modified_ = - IncreaseTransparency(prev_canvas, ¶ms->rect_ll_, curr_canvas); - } - error_code = EncodeCandidate(¶ms->sub_frame_ll_, ¶ms->rect_ll_, - config_ll, use_blending_ll, candidate_ll); - if (error_code != VP8_ENC_OK) return error_code; - } - if (candidate_lossy->evaluate_) { - CopyCurrentCanvas(enc); - if (use_blending_lossy) { - enc->curr_canvas_copy_modified_ = - FlattenSimilarBlocks(prev_canvas, ¶ms->rect_lossy_, curr_canvas, - config_lossy->quality); - } - error_code = - EncodeCandidate(¶ms->sub_frame_lossy_, ¶ms->rect_lossy_, - config_lossy, use_blending_lossy, candidate_lossy); - if (error_code != VP8_ENC_OK) return error_code; - enc->curr_canvas_copy_modified_ = 1; - } - return error_code; -} - -#undef MIN_COLORS_LOSSY -#undef MAX_COLORS_LOSSLESS - -static void GetEncodedData(const WebPMemoryWriter* const memory, - WebPData* const encoded_data) { - encoded_data->bytes = memory->mem; - encoded_data->size = memory->size; -} - -// Sets dispose method of the previous frame to be 'dispose_method'. -static void SetPreviousDisposeMethod(WebPAnimEncoder* const enc, - WebPMuxAnimDispose dispose_method) { - const size_t position = enc->count_ - 2; - EncodedFrame* const prev_enc_frame = GetFrame(enc, position); - assert(enc->count_ >= 2); // As current and previous frames are in enc. - - if (enc->prev_candidate_undecided_) { - assert(dispose_method == WEBP_MUX_DISPOSE_NONE); - prev_enc_frame->sub_frame_.dispose_method = dispose_method; - prev_enc_frame->key_frame_.dispose_method = dispose_method; - } else { - WebPMuxFrameInfo* const prev_info = prev_enc_frame->is_key_frame_ - ? &prev_enc_frame->key_frame_ - : &prev_enc_frame->sub_frame_; - prev_info->dispose_method = dispose_method; - } -} - -static int IncreasePreviousDuration(WebPAnimEncoder* const enc, int duration) { - const size_t position = enc->count_ - 1; - EncodedFrame* const prev_enc_frame = GetFrame(enc, position); - int new_duration; - - assert(enc->count_ >= 1); - assert(prev_enc_frame->sub_frame_.duration == - prev_enc_frame->key_frame_.duration); - assert(prev_enc_frame->sub_frame_.duration == - (prev_enc_frame->sub_frame_.duration & (MAX_DURATION - 1))); - assert(duration == (duration & (MAX_DURATION - 1))); - - new_duration = prev_enc_frame->sub_frame_.duration + duration; - if (new_duration >= MAX_DURATION) { // Special case. - // Separate out previous frame from earlier merged frames to avoid overflow. - // We add a 1x1 transparent frame for the previous frame, with blending on. - const FrameRect rect = { 0, 0, 1, 1 }; - const uint8_t lossless_1x1_bytes[] = { - 0x52, 0x49, 0x46, 0x46, 0x14, 0x00, 0x00, 0x00, 0x57, 0x45, 0x42, 0x50, - 0x56, 0x50, 0x38, 0x4c, 0x08, 0x00, 0x00, 0x00, 0x2f, 0x00, 0x00, 0x00, - 0x10, 0x88, 0x88, 0x08 - }; - const WebPData lossless_1x1 = { - lossless_1x1_bytes, sizeof(lossless_1x1_bytes) - }; - const uint8_t lossy_1x1_bytes[] = { - 0x52, 0x49, 0x46, 0x46, 0x40, 0x00, 0x00, 0x00, 0x57, 0x45, 0x42, 0x50, - 0x56, 0x50, 0x38, 0x58, 0x0a, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x41, 0x4c, 0x50, 0x48, 0x02, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x56, 0x50, 0x38, 0x20, 0x18, 0x00, 0x00, 0x00, - 0x30, 0x01, 0x00, 0x9d, 0x01, 0x2a, 0x01, 0x00, 0x01, 0x00, 0x02, 0x00, - 0x34, 0x25, 0xa4, 0x00, 0x03, 0x70, 0x00, 0xfe, 0xfb, 0xfd, 0x50, 0x00 - }; - const WebPData lossy_1x1 = { lossy_1x1_bytes, sizeof(lossy_1x1_bytes) }; - const int can_use_lossless = - (enc->last_config_.lossless || enc->options_.allow_mixed); - EncodedFrame* const curr_enc_frame = GetFrame(enc, enc->count_); - curr_enc_frame->is_key_frame_ = 0; - curr_enc_frame->sub_frame_.id = WEBP_CHUNK_ANMF; - curr_enc_frame->sub_frame_.x_offset = 0; - curr_enc_frame->sub_frame_.y_offset = 0; - curr_enc_frame->sub_frame_.dispose_method = WEBP_MUX_DISPOSE_NONE; - curr_enc_frame->sub_frame_.blend_method = WEBP_MUX_BLEND; - curr_enc_frame->sub_frame_.duration = duration; - if (!WebPDataCopy(can_use_lossless ? &lossless_1x1 : &lossy_1x1, - &curr_enc_frame->sub_frame_.bitstream)) { - return 0; - } - ++enc->count_; - ++enc->count_since_key_frame_; - enc->flush_count_ = enc->count_ - 1; - enc->prev_candidate_undecided_ = 0; - enc->prev_rect_ = rect; - } else { // Regular case. - // Increase duration of the previous frame by 'duration'. - prev_enc_frame->sub_frame_.duration = new_duration; - prev_enc_frame->key_frame_.duration = new_duration; - } - return 1; -} - -// Pick the candidate encoded frame with smallest size and release other -// candidates. -// TODO(later): Perhaps a rough SSIM/PSNR produced by the encoder should -// also be a criteria, in addition to sizes. -static void PickBestCandidate(WebPAnimEncoder* const enc, - Candidate* const candidates, int is_key_frame, - EncodedFrame* const encoded_frame) { - int i; - int best_idx = -1; - size_t best_size = ~0; - for (i = 0; i < CANDIDATE_COUNT; ++i) { - if (candidates[i].evaluate_) { - const size_t candidate_size = candidates[i].mem_.size; - if (candidate_size < best_size) { - best_idx = i; - best_size = candidate_size; - } - } - } - assert(best_idx != -1); - for (i = 0; i < CANDIDATE_COUNT; ++i) { - if (candidates[i].evaluate_) { - if (i == best_idx) { - WebPMuxFrameInfo* const dst = is_key_frame - ? &encoded_frame->key_frame_ - : &encoded_frame->sub_frame_; - *dst = candidates[i].info_; - GetEncodedData(&candidates[i].mem_, &dst->bitstream); - if (!is_key_frame) { - // Note: Previous dispose method only matters for non-keyframes. - // Also, we don't want to modify previous dispose method that was - // selected when a non key-frame was assumed. - const WebPMuxAnimDispose prev_dispose_method = - (best_idx == LL_DISP_NONE || best_idx == LOSSY_DISP_NONE) - ? WEBP_MUX_DISPOSE_NONE - : WEBP_MUX_DISPOSE_BACKGROUND; - SetPreviousDisposeMethod(enc, prev_dispose_method); - } - enc->prev_rect_ = candidates[i].rect_; // save for next frame. - } else { - WebPMemoryWriterClear(&candidates[i].mem_); - candidates[i].evaluate_ = 0; - } - } - } -} - -// Depending on the configuration, tries different compressions -// (lossy/lossless), dispose methods, blending methods etc to encode the current -// frame and outputs the best one in 'encoded_frame'. -// 'frame_skipped' will be set to true if this frame should actually be skipped. -static WebPEncodingError SetFrame(WebPAnimEncoder* const enc, - const WebPConfig* const config, - int is_key_frame, - EncodedFrame* const encoded_frame, - int* const frame_skipped) { - int i; - WebPEncodingError error_code = VP8_ENC_OK; - const WebPPicture* const curr_canvas = &enc->curr_canvas_copy_; - const WebPPicture* const prev_canvas = &enc->prev_canvas_; - Candidate candidates[CANDIDATE_COUNT]; - const int is_lossless = config->lossless; - const int is_first_frame = enc->is_first_frame_; - - // First frame cannot be skipped as there is no 'previous frame' to merge it - // to. So, empty rectangle is not allowed for the first frame. - const int empty_rect_allowed_none = !is_first_frame; - - // Even if there is exact pixel match between 'disposed previous canvas' and - // 'current canvas', we can't skip current frame, as there may not be exact - // pixel match between 'previous canvas' and 'current canvas'. So, we don't - // allow empty rectangle in this case. - const int empty_rect_allowed_bg = 0; - - // If current frame is a key-frame, dispose method of previous frame doesn't - // matter, so we don't try dispose to background. - // Also, if key-frame insertion is on, and previous frame could be picked as - // either a sub-frame or a key-frame, then we can't be sure about what frame - // rectangle would be disposed. In that case too, we don't try dispose to - // background. - const int dispose_bg_possible = - !is_key_frame && !enc->prev_candidate_undecided_; - - SubFrameParams dispose_none_params; - SubFrameParams dispose_bg_params; - - WebPConfig config_ll = *config; - WebPConfig config_lossy = *config; - config_ll.lossless = 1; - config_lossy.lossless = 0; - enc->last_config_ = *config; - enc->last_config_reversed_ = config->lossless ? config_lossy : config_ll; - *frame_skipped = 0; - - if (!SubFrameParamsInit(&dispose_none_params, 1, empty_rect_allowed_none) || - !SubFrameParamsInit(&dispose_bg_params, 0, empty_rect_allowed_bg)) { - return VP8_ENC_ERROR_INVALID_CONFIGURATION; - } - - for (i = 0; i < CANDIDATE_COUNT; ++i) { - candidates[i].evaluate_ = 0; - } - - // Change-rectangle assuming previous frame was DISPOSE_NONE. - if (!GetSubRects(prev_canvas, curr_canvas, is_key_frame, is_first_frame, - config_lossy.quality, &dispose_none_params)) { - error_code = VP8_ENC_ERROR_INVALID_CONFIGURATION; - goto Err; - } - - if ((is_lossless && IsEmptyRect(&dispose_none_params.rect_ll_)) || - (!is_lossless && IsEmptyRect(&dispose_none_params.rect_lossy_))) { - // Don't encode the frame at all. Instead, the duration of the previous - // frame will be increased later. - assert(empty_rect_allowed_none); - *frame_skipped = 1; - goto End; - } - - if (dispose_bg_possible) { - // Change-rectangle assuming previous frame was DISPOSE_BACKGROUND. - WebPPicture* const prev_canvas_disposed = &enc->prev_canvas_disposed_; - WebPCopyPixels(prev_canvas, prev_canvas_disposed); - DisposeFrameRectangle(WEBP_MUX_DISPOSE_BACKGROUND, &enc->prev_rect_, - prev_canvas_disposed); - - if (!GetSubRects(prev_canvas_disposed, curr_canvas, is_key_frame, - is_first_frame, config_lossy.quality, - &dispose_bg_params)) { - error_code = VP8_ENC_ERROR_INVALID_CONFIGURATION; - goto Err; - } - assert(!IsEmptyRect(&dispose_bg_params.rect_ll_)); - assert(!IsEmptyRect(&dispose_bg_params.rect_lossy_)); - - if (enc->options_.minimize_size) { // Try both dispose methods. - dispose_bg_params.should_try_ = 1; - dispose_none_params.should_try_ = 1; - } else if ((is_lossless && - RectArea(&dispose_bg_params.rect_ll_) < - RectArea(&dispose_none_params.rect_ll_)) || - (!is_lossless && - RectArea(&dispose_bg_params.rect_lossy_) < - RectArea(&dispose_none_params.rect_lossy_))) { - dispose_bg_params.should_try_ = 1; // Pick DISPOSE_BACKGROUND. - dispose_none_params.should_try_ = 0; - } - } - - if (dispose_none_params.should_try_) { - error_code = GenerateCandidates( - enc, candidates, WEBP_MUX_DISPOSE_NONE, is_lossless, is_key_frame, - &dispose_none_params, &config_ll, &config_lossy); - if (error_code != VP8_ENC_OK) goto Err; - } - - if (dispose_bg_params.should_try_) { - assert(!enc->is_first_frame_); - assert(dispose_bg_possible); - error_code = GenerateCandidates( - enc, candidates, WEBP_MUX_DISPOSE_BACKGROUND, is_lossless, is_key_frame, - &dispose_bg_params, &config_ll, &config_lossy); - if (error_code != VP8_ENC_OK) goto Err; - } - - PickBestCandidate(enc, candidates, is_key_frame, encoded_frame); - - goto End; - - Err: - for (i = 0; i < CANDIDATE_COUNT; ++i) { - if (candidates[i].evaluate_) { - WebPMemoryWriterClear(&candidates[i].mem_); - } - } - - End: - SubFrameParamsFree(&dispose_none_params); - SubFrameParamsFree(&dispose_bg_params); - return error_code; -} - -// Calculate the penalty incurred if we encode given frame as a key frame -// instead of a sub-frame. -static int64_t KeyFramePenalty(const EncodedFrame* const encoded_frame) { - return ((int64_t)encoded_frame->key_frame_.bitstream.size - - encoded_frame->sub_frame_.bitstream.size); -} - -static int CacheFrame(WebPAnimEncoder* const enc, - const WebPConfig* const config) { - int ok = 0; - int frame_skipped = 0; - WebPEncodingError error_code = VP8_ENC_OK; - const size_t position = enc->count_; - EncodedFrame* const encoded_frame = GetFrame(enc, position); - - ++enc->count_; - - if (enc->is_first_frame_) { // Add this as a key-frame. - error_code = SetFrame(enc, config, 1, encoded_frame, &frame_skipped); - if (error_code != VP8_ENC_OK) goto End; - assert(frame_skipped == 0); // First frame can't be skipped, even if empty. - assert(position == 0 && enc->count_ == 1); - encoded_frame->is_key_frame_ = 1; - enc->flush_count_ = 0; - enc->count_since_key_frame_ = 0; - enc->prev_candidate_undecided_ = 0; - } else { - ++enc->count_since_key_frame_; - if (enc->count_since_key_frame_ <= enc->options_.kmin) { - // Add this as a frame rectangle. - error_code = SetFrame(enc, config, 0, encoded_frame, &frame_skipped); - if (error_code != VP8_ENC_OK) goto End; - if (frame_skipped) goto Skip; - encoded_frame->is_key_frame_ = 0; - enc->flush_count_ = enc->count_ - 1; - enc->prev_candidate_undecided_ = 0; - } else { - int64_t curr_delta; - - // Add this as a frame rectangle to enc. - error_code = SetFrame(enc, config, 0, encoded_frame, &frame_skipped); - if (error_code != VP8_ENC_OK) goto End; - if (frame_skipped) goto Skip; - - // Add this as a key-frame to enc, too. - error_code = SetFrame(enc, config, 1, encoded_frame, &frame_skipped); - if (error_code != VP8_ENC_OK) goto End; - assert(frame_skipped == 0); // Key-frame cannot be an empty rectangle. - - // Analyze size difference of the two variants. - curr_delta = KeyFramePenalty(encoded_frame); - if (curr_delta <= enc->best_delta_) { // Pick this as the key-frame. - if (enc->keyframe_ != KEYFRAME_NONE) { - EncodedFrame* const old_keyframe = GetFrame(enc, enc->keyframe_); - assert(old_keyframe->is_key_frame_); - old_keyframe->is_key_frame_ = 0; - } - encoded_frame->is_key_frame_ = 1; - enc->keyframe_ = (int)position; - enc->best_delta_ = curr_delta; - enc->flush_count_ = enc->count_ - 1; // We can flush previous frames. - } else { - encoded_frame->is_key_frame_ = 0; - } - // Note: We need '>=' below because when kmin and kmax are both zero, - // count_since_key_frame will always be > kmax. - if (enc->count_since_key_frame_ >= enc->options_.kmax) { - enc->flush_count_ = enc->count_ - 1; - enc->count_since_key_frame_ = 0; - enc->keyframe_ = KEYFRAME_NONE; - enc->best_delta_ = DELTA_INFINITY; - } - enc->prev_candidate_undecided_ = 1; - } - } - - // Update previous to previous and previous canvases for next call. - WebPCopyPixels(enc->curr_canvas_, &enc->prev_canvas_); - enc->is_first_frame_ = 0; - - Skip: - ok = 1; - ++enc->in_frame_count_; - - End: - if (!ok || frame_skipped) { - FrameRelease(encoded_frame); - // We reset some counters, as the frame addition failed/was skipped. - --enc->count_; - if (!enc->is_first_frame_) --enc->count_since_key_frame_; - if (!ok) { - MarkError2(enc, "ERROR adding frame. WebPEncodingError", error_code); - } - } - enc->curr_canvas_->error_code = error_code; // report error_code - assert(ok || error_code != VP8_ENC_OK); - return ok; -} - -static int FlushFrames(WebPAnimEncoder* const enc) { - while (enc->flush_count_ > 0) { - WebPMuxError err; - EncodedFrame* const curr = GetFrame(enc, 0); - const WebPMuxFrameInfo* const info = - curr->is_key_frame_ ? &curr->key_frame_ : &curr->sub_frame_; - assert(enc->mux_ != NULL); - err = WebPMuxPushFrame(enc->mux_, info, 1); - if (err != WEBP_MUX_OK) { - MarkError2(enc, "ERROR adding frame. WebPMuxError", err); - return 0; - } - if (enc->options_.verbose) { - fprintf(stderr, "INFO: Added frame. offset:%d,%d dispose:%d blend:%d\n", - info->x_offset, info->y_offset, info->dispose_method, - info->blend_method); - } - ++enc->out_frame_count_; - FrameRelease(curr); - ++enc->start_; - --enc->flush_count_; - --enc->count_; - if (enc->keyframe_ != KEYFRAME_NONE) --enc->keyframe_; - } - - if (enc->count_ == 1 && enc->start_ != 0) { - // Move enc->start to index 0. - const int enc_start_tmp = (int)enc->start_; - EncodedFrame temp = enc->encoded_frames_[0]; - enc->encoded_frames_[0] = enc->encoded_frames_[enc_start_tmp]; - enc->encoded_frames_[enc_start_tmp] = temp; - FrameRelease(&enc->encoded_frames_[enc_start_tmp]); - enc->start_ = 0; - } - return 1; -} - -#undef DELTA_INFINITY -#undef KEYFRAME_NONE - -int WebPAnimEncoderAdd(WebPAnimEncoder* enc, WebPPicture* frame, int timestamp, - const WebPConfig* encoder_config) { - WebPConfig config; - int ok; - - if (enc == NULL) { - return 0; - } - MarkNoError(enc); - - if (!enc->is_first_frame_) { - // Make sure timestamps are non-decreasing (integer wrap-around is OK). - const uint32_t prev_frame_duration = - (uint32_t)timestamp - enc->prev_timestamp_; - if (prev_frame_duration >= MAX_DURATION) { - if (frame != NULL) { - frame->error_code = VP8_ENC_ERROR_INVALID_CONFIGURATION; - } - MarkError(enc, "ERROR adding frame: timestamps must be non-decreasing"); - return 0; - } - if (!IncreasePreviousDuration(enc, (int)prev_frame_duration)) { - return 0; - } - } else { - enc->first_timestamp_ = timestamp; - } - - if (frame == NULL) { // Special: last call. - enc->got_null_frame_ = 1; - enc->prev_timestamp_ = timestamp; - return 1; - } - - if (frame->width != enc->canvas_width_ || - frame->height != enc->canvas_height_) { - frame->error_code = VP8_ENC_ERROR_INVALID_CONFIGURATION; - MarkError(enc, "ERROR adding frame: Invalid frame dimensions"); - return 0; - } - - if (!frame->use_argb) { // Convert frame from YUV(A) to ARGB. - if (enc->options_.verbose) { - fprintf(stderr, "WARNING: Converting frame from YUV(A) to ARGB format; " - "this incurs a small loss.\n"); - } - if (!WebPPictureYUVAToARGB(frame)) { - MarkError(enc, "ERROR converting frame from YUV(A) to ARGB"); - return 0; - } - } - - if (encoder_config != NULL) { - if (!WebPValidateConfig(encoder_config)) { - MarkError(enc, "ERROR adding frame: Invalid WebPConfig"); - return 0; - } - config = *encoder_config; - } else { - WebPConfigInit(&config); - config.lossless = 1; - } - assert(enc->curr_canvas_ == NULL); - enc->curr_canvas_ = frame; // Store reference. - assert(enc->curr_canvas_copy_modified_ == 1); - CopyCurrentCanvas(enc); - - ok = CacheFrame(enc, &config) && FlushFrames(enc); - - enc->curr_canvas_ = NULL; - enc->curr_canvas_copy_modified_ = 1; - if (ok) { - enc->prev_timestamp_ = timestamp; - } - return ok; -} - -// ----------------------------------------------------------------------------- -// Bitstream assembly. - -static int DecodeFrameOntoCanvas(const WebPMuxFrameInfo* const frame, - WebPPicture* const canvas) { - const WebPData* const image = &frame->bitstream; - WebPPicture sub_image; - WebPDecoderConfig config; - WebPInitDecoderConfig(&config); - WebPUtilClearPic(canvas, NULL); - if (WebPGetFeatures(image->bytes, image->size, &config.input) != - VP8_STATUS_OK) { - return 0; - } - if (!WebPPictureView(canvas, frame->x_offset, frame->y_offset, - config.input.width, config.input.height, &sub_image)) { - return 0; - } - config.output.is_external_memory = 1; - config.output.colorspace = MODE_BGRA; - config.output.u.RGBA.rgba = (uint8_t*)sub_image.argb; - config.output.u.RGBA.stride = sub_image.argb_stride * 4; - config.output.u.RGBA.size = config.output.u.RGBA.stride * sub_image.height; - - if (WebPDecode(image->bytes, image->size, &config) != VP8_STATUS_OK) { - return 0; - } - return 1; -} - -static int FrameToFullCanvas(WebPAnimEncoder* const enc, - const WebPMuxFrameInfo* const frame, - WebPData* const full_image) { - WebPPicture* const canvas_buf = &enc->curr_canvas_copy_; - WebPMemoryWriter mem1, mem2; - WebPMemoryWriterInit(&mem1); - WebPMemoryWriterInit(&mem2); - - if (!DecodeFrameOntoCanvas(frame, canvas_buf)) goto Err; - if (!EncodeFrame(&enc->last_config_, canvas_buf, &mem1)) goto Err; - GetEncodedData(&mem1, full_image); - - if (enc->options_.allow_mixed) { - if (!EncodeFrame(&enc->last_config_reversed_, canvas_buf, &mem2)) goto Err; - if (mem2.size < mem1.size) { - GetEncodedData(&mem2, full_image); - WebPMemoryWriterClear(&mem1); - } else { - WebPMemoryWriterClear(&mem2); - } - } - return 1; - - Err: - WebPMemoryWriterClear(&mem1); - WebPMemoryWriterClear(&mem2); - return 0; -} - -// Convert a single-frame animation to a non-animated image if appropriate. -// TODO(urvang): Can we pick one of the two heuristically (based on frame -// rectangle and/or presence of alpha)? -static WebPMuxError OptimizeSingleFrame(WebPAnimEncoder* const enc, - WebPData* const webp_data) { - WebPMuxError err = WEBP_MUX_OK; - int canvas_width, canvas_height; - WebPMuxFrameInfo frame; - WebPData full_image; - WebPData webp_data2; - WebPMux* const mux = WebPMuxCreate(webp_data, 0); - if (mux == NULL) return WEBP_MUX_BAD_DATA; - assert(enc->out_frame_count_ == 1); - WebPDataInit(&frame.bitstream); - WebPDataInit(&full_image); - WebPDataInit(&webp_data2); - - err = WebPMuxGetFrame(mux, 1, &frame); - if (err != WEBP_MUX_OK) goto End; - if (frame.id != WEBP_CHUNK_ANMF) goto End; // Non-animation: nothing to do. - err = WebPMuxGetCanvasSize(mux, &canvas_width, &canvas_height); - if (err != WEBP_MUX_OK) goto End; - if (!FrameToFullCanvas(enc, &frame, &full_image)) { - err = WEBP_MUX_BAD_DATA; - goto End; - } - err = WebPMuxSetImage(mux, &full_image, 1); - if (err != WEBP_MUX_OK) goto End; - err = WebPMuxAssemble(mux, &webp_data2); - if (err != WEBP_MUX_OK) goto End; - - if (webp_data2.size < webp_data->size) { // Pick 'webp_data2' if smaller. - WebPDataClear(webp_data); - *webp_data = webp_data2; - WebPDataInit(&webp_data2); - } - - End: - WebPDataClear(&frame.bitstream); - WebPDataClear(&full_image); - WebPMuxDelete(mux); - WebPDataClear(&webp_data2); - return err; -} - -int WebPAnimEncoderAssemble(WebPAnimEncoder* enc, WebPData* webp_data) { - WebPMux* mux; - WebPMuxError err; - - if (enc == NULL) { - return 0; - } - MarkNoError(enc); - - if (webp_data == NULL) { - MarkError(enc, "ERROR assembling: NULL input"); - return 0; - } - - if (enc->in_frame_count_ == 0) { - MarkError(enc, "ERROR: No frames to assemble"); - return 0; - } - - if (!enc->got_null_frame_ && enc->in_frame_count_ > 1 && enc->count_ > 0) { - // set duration of the last frame to be avg of durations of previous frames. - const double delta_time = enc->prev_timestamp_ - enc->first_timestamp_; - const int average_duration = (int)(delta_time / (enc->in_frame_count_ - 1)); - if (!IncreasePreviousDuration(enc, average_duration)) { - return 0; - } - } - - // Flush any remaining frames. - enc->flush_count_ = enc->count_; - if (!FlushFrames(enc)) { - return 0; - } - - // Set definitive canvas size. - mux = enc->mux_; - err = WebPMuxSetCanvasSize(mux, enc->canvas_width_, enc->canvas_height_); - if (err != WEBP_MUX_OK) goto Err; - - err = WebPMuxSetAnimationParams(mux, &enc->options_.anim_params); - if (err != WEBP_MUX_OK) goto Err; - - // Assemble into a WebP bitstream. - err = WebPMuxAssemble(mux, webp_data); - if (err != WEBP_MUX_OK) goto Err; - - if (enc->out_frame_count_ == 1) { - err = OptimizeSingleFrame(enc, webp_data); - if (err != WEBP_MUX_OK) goto Err; - } - return 1; - - Err: - MarkError2(enc, "ERROR assembling WebP", err); - return 0; -} - -const char* WebPAnimEncoderGetError(WebPAnimEncoder* enc) { - if (enc == NULL) return NULL; - return enc->error_str_; -} - -// ----------------------------------------------------------------------------- diff --git a/drivers/webp/mux/muxedit.c b/drivers/webp/mux/muxedit.c deleted file mode 100644 index 9bbed42b1a..0000000000 --- a/drivers/webp/mux/muxedit.c +++ /dev/null @@ -1,696 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Set and delete APIs for mux. -// -// Authors: Urvang (urvang@google.com) -// Vikas (vikasa@google.com) - -#include <assert.h> -#include "./muxi.h" -#include "../utils/utils.h" - -//------------------------------------------------------------------------------ -// Life of a mux object. - -static void MuxInit(WebPMux* const mux) { - assert(mux != NULL); - memset(mux, 0, sizeof(*mux)); - mux->canvas_width_ = 0; // just to be explicit - mux->canvas_height_ = 0; -} - -WebPMux* WebPNewInternal(int version) { - if (WEBP_ABI_IS_INCOMPATIBLE(version, WEBP_MUX_ABI_VERSION)) { - return NULL; - } else { - WebPMux* const mux = (WebPMux*)WebPSafeMalloc(1ULL, sizeof(WebPMux)); - if (mux != NULL) MuxInit(mux); - return mux; - } -} - -// Delete all images in 'wpi_list'. -static void DeleteAllImages(WebPMuxImage** const wpi_list) { - while (*wpi_list != NULL) { - *wpi_list = MuxImageDelete(*wpi_list); - } -} - -static void MuxRelease(WebPMux* const mux) { - assert(mux != NULL); - DeleteAllImages(&mux->images_); - ChunkListDelete(&mux->vp8x_); - ChunkListDelete(&mux->iccp_); - ChunkListDelete(&mux->anim_); - ChunkListDelete(&mux->exif_); - ChunkListDelete(&mux->xmp_); - ChunkListDelete(&mux->unknown_); -} - -void WebPMuxDelete(WebPMux* mux) { - if (mux != NULL) { - MuxRelease(mux); - WebPSafeFree(mux); - } -} - -//------------------------------------------------------------------------------ -// Helper method(s). - -// Handy MACRO, makes MuxSet() very symmetric to MuxGet(). -#define SWITCH_ID_LIST(INDEX, LIST) \ - if (idx == (INDEX)) { \ - err = ChunkAssignData(&chunk, data, copy_data, tag); \ - if (err == WEBP_MUX_OK) { \ - err = ChunkSetNth(&chunk, (LIST), nth); \ - } \ - return err; \ - } - -static WebPMuxError MuxSet(WebPMux* const mux, uint32_t tag, uint32_t nth, - const WebPData* const data, int copy_data) { - WebPChunk chunk; - WebPMuxError err = WEBP_MUX_NOT_FOUND; - const CHUNK_INDEX idx = ChunkGetIndexFromTag(tag); - assert(mux != NULL); - assert(!IsWPI(kChunks[idx].id)); - - ChunkInit(&chunk); - SWITCH_ID_LIST(IDX_VP8X, &mux->vp8x_); - SWITCH_ID_LIST(IDX_ICCP, &mux->iccp_); - SWITCH_ID_LIST(IDX_ANIM, &mux->anim_); - SWITCH_ID_LIST(IDX_EXIF, &mux->exif_); - SWITCH_ID_LIST(IDX_XMP, &mux->xmp_); - SWITCH_ID_LIST(IDX_UNKNOWN, &mux->unknown_); - return err; -} -#undef SWITCH_ID_LIST - -// Create data for frame/fragment given image data, offsets and duration. -static WebPMuxError CreateFrameFragmentData( - int width, int height, const WebPMuxFrameInfo* const info, int is_frame, - WebPData* const frame_frgm) { - uint8_t* frame_frgm_bytes; - const size_t frame_frgm_size = kChunks[is_frame ? IDX_ANMF : IDX_FRGM].size; - - assert(width > 0 && height > 0 && info->duration >= 0); - assert(info->dispose_method == (info->dispose_method & 1)); - // Note: assertion on upper bounds is done in PutLE24(). - - frame_frgm_bytes = (uint8_t*)WebPSafeMalloc(1ULL, frame_frgm_size); - if (frame_frgm_bytes == NULL) return WEBP_MUX_MEMORY_ERROR; - - PutLE24(frame_frgm_bytes + 0, info->x_offset / 2); - PutLE24(frame_frgm_bytes + 3, info->y_offset / 2); - - if (is_frame) { - PutLE24(frame_frgm_bytes + 6, width - 1); - PutLE24(frame_frgm_bytes + 9, height - 1); - PutLE24(frame_frgm_bytes + 12, info->duration); - frame_frgm_bytes[15] = - (info->blend_method == WEBP_MUX_NO_BLEND ? 2 : 0) | - (info->dispose_method == WEBP_MUX_DISPOSE_BACKGROUND ? 1 : 0); - } - - frame_frgm->bytes = frame_frgm_bytes; - frame_frgm->size = frame_frgm_size; - return WEBP_MUX_OK; -} - -// Outputs image data given a bitstream. The bitstream can either be a -// single-image WebP file or raw VP8/VP8L data. -// Also outputs 'is_lossless' to be true if the given bitstream is lossless. -static WebPMuxError GetImageData(const WebPData* const bitstream, - WebPData* const image, WebPData* const alpha, - int* const is_lossless) { - WebPDataInit(alpha); // Default: no alpha. - if (bitstream->size < TAG_SIZE || - memcmp(bitstream->bytes, "RIFF", TAG_SIZE)) { - // It is NOT webp file data. Return input data as is. - *image = *bitstream; - } else { - // It is webp file data. Extract image data from it. - const WebPMuxImage* wpi; - WebPMux* const mux = WebPMuxCreate(bitstream, 0); - if (mux == NULL) return WEBP_MUX_BAD_DATA; - wpi = mux->images_; - assert(wpi != NULL && wpi->img_ != NULL); - *image = wpi->img_->data_; - if (wpi->alpha_ != NULL) { - *alpha = wpi->alpha_->data_; - } - WebPMuxDelete(mux); - } - *is_lossless = VP8LCheckSignature(image->bytes, image->size); - return WEBP_MUX_OK; -} - -static WebPMuxError DeleteChunks(WebPChunk** chunk_list, uint32_t tag) { - WebPMuxError err = WEBP_MUX_NOT_FOUND; - assert(chunk_list); - while (*chunk_list) { - WebPChunk* const chunk = *chunk_list; - if (chunk->tag_ == tag) { - *chunk_list = ChunkDelete(chunk); - err = WEBP_MUX_OK; - } else { - chunk_list = &chunk->next_; - } - } - return err; -} - -static WebPMuxError MuxDeleteAllNamedData(WebPMux* const mux, uint32_t tag) { - const WebPChunkId id = ChunkGetIdFromTag(tag); - assert(mux != NULL); - if (IsWPI(id)) return WEBP_MUX_INVALID_ARGUMENT; - return DeleteChunks(MuxGetChunkListFromId(mux, id), tag); -} - -//------------------------------------------------------------------------------ -// Set API(s). - -WebPMuxError WebPMuxSetChunk(WebPMux* mux, const char fourcc[4], - const WebPData* chunk_data, int copy_data) { - uint32_t tag; - WebPMuxError err; - if (mux == NULL || fourcc == NULL || chunk_data == NULL || - chunk_data->bytes == NULL || chunk_data->size > MAX_CHUNK_PAYLOAD) { - return WEBP_MUX_INVALID_ARGUMENT; - } - tag = ChunkGetTagFromFourCC(fourcc); - - // Delete existing chunk(s) with the same 'fourcc'. - err = MuxDeleteAllNamedData(mux, tag); - if (err != WEBP_MUX_OK && err != WEBP_MUX_NOT_FOUND) return err; - - // Add the given chunk. - return MuxSet(mux, tag, 1, chunk_data, copy_data); -} - -// Creates a chunk from given 'data' and sets it as 1st chunk in 'chunk_list'. -static WebPMuxError AddDataToChunkList( - const WebPData* const data, int copy_data, uint32_t tag, - WebPChunk** chunk_list) { - WebPChunk chunk; - WebPMuxError err; - ChunkInit(&chunk); - err = ChunkAssignData(&chunk, data, copy_data, tag); - if (err != WEBP_MUX_OK) goto Err; - err = ChunkSetNth(&chunk, chunk_list, 1); - if (err != WEBP_MUX_OK) goto Err; - return WEBP_MUX_OK; - Err: - ChunkRelease(&chunk); - return err; -} - -// Extracts image & alpha data from the given bitstream and then sets wpi.alpha_ -// and wpi.img_ appropriately. -static WebPMuxError SetAlphaAndImageChunks( - const WebPData* const bitstream, int copy_data, WebPMuxImage* const wpi) { - int is_lossless = 0; - WebPData image, alpha; - WebPMuxError err = GetImageData(bitstream, &image, &alpha, &is_lossless); - const int image_tag = - is_lossless ? kChunks[IDX_VP8L].tag : kChunks[IDX_VP8].tag; - if (err != WEBP_MUX_OK) return err; - if (alpha.bytes != NULL) { - err = AddDataToChunkList(&alpha, copy_data, kChunks[IDX_ALPHA].tag, - &wpi->alpha_); - if (err != WEBP_MUX_OK) return err; - } - err = AddDataToChunkList(&image, copy_data, image_tag, &wpi->img_); - if (err != WEBP_MUX_OK) return err; - return MuxImageFinalize(wpi) ? WEBP_MUX_OK : WEBP_MUX_INVALID_ARGUMENT; -} - -WebPMuxError WebPMuxSetImage(WebPMux* mux, const WebPData* bitstream, - int copy_data) { - WebPMuxImage wpi; - WebPMuxError err; - - // Sanity checks. - if (mux == NULL || bitstream == NULL || bitstream->bytes == NULL || - bitstream->size > MAX_CHUNK_PAYLOAD) { - return WEBP_MUX_INVALID_ARGUMENT; - } - - if (mux->images_ != NULL) { - // Only one 'simple image' can be added in mux. So, remove present images. - DeleteAllImages(&mux->images_); - } - - MuxImageInit(&wpi); - err = SetAlphaAndImageChunks(bitstream, copy_data, &wpi); - if (err != WEBP_MUX_OK) goto Err; - - // Add this WebPMuxImage to mux. - err = MuxImagePush(&wpi, &mux->images_); - if (err != WEBP_MUX_OK) goto Err; - - // All is well. - return WEBP_MUX_OK; - - Err: // Something bad happened. - MuxImageRelease(&wpi); - return err; -} - -WebPMuxError WebPMuxPushFrame(WebPMux* mux, const WebPMuxFrameInfo* frame, - int copy_data) { - WebPMuxImage wpi; - WebPMuxError err; - int is_frame; - const WebPData* const bitstream = &frame->bitstream; - - // Sanity checks. - if (mux == NULL || frame == NULL) return WEBP_MUX_INVALID_ARGUMENT; - - is_frame = (frame->id == WEBP_CHUNK_ANMF); - if (!(is_frame || (frame->id == WEBP_CHUNK_FRGM))) { - return WEBP_MUX_INVALID_ARGUMENT; - } - if (frame->id == WEBP_CHUNK_FRGM) { // Dead experiment. - return WEBP_MUX_INVALID_ARGUMENT; - } - - if (bitstream->bytes == NULL || bitstream->size > MAX_CHUNK_PAYLOAD) { - return WEBP_MUX_INVALID_ARGUMENT; - } - - if (mux->images_ != NULL) { - const WebPMuxImage* const image = mux->images_; - const uint32_t image_id = (image->header_ != NULL) ? - ChunkGetIdFromTag(image->header_->tag_) : WEBP_CHUNK_IMAGE; - if (image_id != frame->id) { - return WEBP_MUX_INVALID_ARGUMENT; // Conflicting frame types. - } - } - - MuxImageInit(&wpi); - err = SetAlphaAndImageChunks(bitstream, copy_data, &wpi); - if (err != WEBP_MUX_OK) goto Err; - assert(wpi.img_ != NULL); // As SetAlphaAndImageChunks() was successful. - - { - WebPData frame_frgm; - const uint32_t tag = kChunks[is_frame ? IDX_ANMF : IDX_FRGM].tag; - WebPMuxFrameInfo tmp = *frame; - tmp.x_offset &= ~1; // Snap offsets to even. - tmp.y_offset &= ~1; - if (!is_frame) { // Reset unused values. - tmp.duration = 1; - tmp.dispose_method = WEBP_MUX_DISPOSE_NONE; - tmp.blend_method = WEBP_MUX_BLEND; - } - if (tmp.x_offset < 0 || tmp.x_offset >= MAX_POSITION_OFFSET || - tmp.y_offset < 0 || tmp.y_offset >= MAX_POSITION_OFFSET || - (tmp.duration < 0 || tmp.duration >= MAX_DURATION) || - tmp.dispose_method != (tmp.dispose_method & 1)) { - err = WEBP_MUX_INVALID_ARGUMENT; - goto Err; - } - err = CreateFrameFragmentData(wpi.width_, wpi.height_, &tmp, is_frame, - &frame_frgm); - if (err != WEBP_MUX_OK) goto Err; - // Add frame/fragment chunk (with copy_data = 1). - err = AddDataToChunkList(&frame_frgm, 1, tag, &wpi.header_); - WebPDataClear(&frame_frgm); // frame_frgm owned by wpi.header_ now. - if (err != WEBP_MUX_OK) goto Err; - } - - // Add this WebPMuxImage to mux. - err = MuxImagePush(&wpi, &mux->images_); - if (err != WEBP_MUX_OK) goto Err; - - // All is well. - return WEBP_MUX_OK; - - Err: // Something bad happened. - MuxImageRelease(&wpi); - return err; -} - -WebPMuxError WebPMuxSetAnimationParams(WebPMux* mux, - const WebPMuxAnimParams* params) { - WebPMuxError err; - uint8_t data[ANIM_CHUNK_SIZE]; - const WebPData anim = { data, ANIM_CHUNK_SIZE }; - - if (mux == NULL || params == NULL) return WEBP_MUX_INVALID_ARGUMENT; - if (params->loop_count < 0 || params->loop_count >= MAX_LOOP_COUNT) { - return WEBP_MUX_INVALID_ARGUMENT; - } - - // Delete any existing ANIM chunk(s). - err = MuxDeleteAllNamedData(mux, kChunks[IDX_ANIM].tag); - if (err != WEBP_MUX_OK && err != WEBP_MUX_NOT_FOUND) return err; - - // Set the animation parameters. - PutLE32(data, params->bgcolor); - PutLE16(data + 4, params->loop_count); - return MuxSet(mux, kChunks[IDX_ANIM].tag, 1, &anim, 1); -} - -WebPMuxError WebPMuxSetCanvasSize(WebPMux* mux, - int width, int height) { - WebPMuxError err; - if (mux == NULL) { - return WEBP_MUX_INVALID_ARGUMENT; - } - if (width < 0 || height < 0 || - width > MAX_CANVAS_SIZE || height > MAX_CANVAS_SIZE) { - return WEBP_MUX_INVALID_ARGUMENT; - } - if (width * (uint64_t)height >= MAX_IMAGE_AREA) { - return WEBP_MUX_INVALID_ARGUMENT; - } - if ((width * height) == 0 && (width | height) != 0) { - // one of width / height is zero, but not both -> invalid! - return WEBP_MUX_INVALID_ARGUMENT; - } - // If we already assembled a VP8X chunk, invalidate it. - err = MuxDeleteAllNamedData(mux, kChunks[IDX_VP8X].tag); - if (err != WEBP_MUX_OK && err != WEBP_MUX_NOT_FOUND) return err; - - mux->canvas_width_ = width; - mux->canvas_height_ = height; - return WEBP_MUX_OK; -} - -//------------------------------------------------------------------------------ -// Delete API(s). - -WebPMuxError WebPMuxDeleteChunk(WebPMux* mux, const char fourcc[4]) { - if (mux == NULL || fourcc == NULL) return WEBP_MUX_INVALID_ARGUMENT; - return MuxDeleteAllNamedData(mux, ChunkGetTagFromFourCC(fourcc)); -} - -WebPMuxError WebPMuxDeleteFrame(WebPMux* mux, uint32_t nth) { - if (mux == NULL) return WEBP_MUX_INVALID_ARGUMENT; - return MuxImageDeleteNth(&mux->images_, nth); -} - -//------------------------------------------------------------------------------ -// Assembly of the WebP RIFF file. - -static WebPMuxError GetFrameFragmentInfo( - const WebPChunk* const frame_frgm_chunk, - int* const x_offset, int* const y_offset, int* const duration) { - const uint32_t tag = frame_frgm_chunk->tag_; - const int is_frame = (tag == kChunks[IDX_ANMF].tag); - const WebPData* const data = &frame_frgm_chunk->data_; - const size_t expected_data_size = - is_frame ? ANMF_CHUNK_SIZE : FRGM_CHUNK_SIZE; - assert(frame_frgm_chunk != NULL); - assert(tag == kChunks[IDX_ANMF].tag || tag == kChunks[IDX_FRGM].tag); - if (data->size != expected_data_size) return WEBP_MUX_INVALID_ARGUMENT; - - *x_offset = 2 * GetLE24(data->bytes + 0); - *y_offset = 2 * GetLE24(data->bytes + 3); - if (is_frame) *duration = GetLE24(data->bytes + 12); - return WEBP_MUX_OK; -} - -static WebPMuxError GetImageInfo(const WebPMuxImage* const wpi, - int* const x_offset, int* const y_offset, - int* const duration, - int* const width, int* const height) { - const WebPChunk* const frame_frgm_chunk = wpi->header_; - WebPMuxError err; - assert(wpi != NULL); - assert(frame_frgm_chunk != NULL); - - // Get offsets and duration from ANMF/FRGM chunk. - err = GetFrameFragmentInfo(frame_frgm_chunk, x_offset, y_offset, duration); - if (err != WEBP_MUX_OK) return err; - - // Get width and height from VP8/VP8L chunk. - if (width != NULL) *width = wpi->width_; - if (height != NULL) *height = wpi->height_; - return WEBP_MUX_OK; -} - -// Returns the tightest dimension for the canvas considering the image list. -static WebPMuxError GetAdjustedCanvasSize(const WebPMux* const mux, - uint32_t flags, - int* const width, int* const height) { - WebPMuxImage* wpi = NULL; - assert(mux != NULL); - assert(width != NULL && height != NULL); - - wpi = mux->images_; - assert(wpi != NULL); - assert(wpi->img_ != NULL); - - if (wpi->next_ != NULL) { - int max_x = 0; - int max_y = 0; - int64_t image_area = 0; - // if we have a chain of wpi's, header_ is necessarily set - assert(wpi->header_ != NULL); - // Aggregate the bounding box for animation frames & fragmented images. - for (; wpi != NULL; wpi = wpi->next_) { - int x_offset = 0, y_offset = 0, duration = 0, w = 0, h = 0; - const WebPMuxError err = GetImageInfo(wpi, &x_offset, &y_offset, - &duration, &w, &h); - const int max_x_pos = x_offset + w; - const int max_y_pos = y_offset + h; - if (err != WEBP_MUX_OK) return err; - assert(x_offset < MAX_POSITION_OFFSET); - assert(y_offset < MAX_POSITION_OFFSET); - - if (max_x_pos > max_x) max_x = max_x_pos; - if (max_y_pos > max_y) max_y = max_y_pos; - image_area += w * h; - } - *width = max_x; - *height = max_y; - // Crude check to validate that there are no image overlaps/holes for - // fragmented images. Check that the aggregated image area for individual - // fragments exactly matches the image area of the constructed canvas. - // However, the area-match is necessary but not sufficient condition. - if ((flags & FRAGMENTS_FLAG) && (image_area != (max_x * max_y))) { - *width = 0; - *height = 0; - return WEBP_MUX_INVALID_ARGUMENT; - } - } else { - // For a single image, canvas dimensions are same as image dimensions. - *width = wpi->width_; - *height = wpi->height_; - } - return WEBP_MUX_OK; -} - -// VP8X format: -// Total Size : 10, -// Flags : 4 bytes, -// Width : 3 bytes, -// Height : 3 bytes. -static WebPMuxError CreateVP8XChunk(WebPMux* const mux) { - WebPMuxError err = WEBP_MUX_OK; - uint32_t flags = 0; - int width = 0; - int height = 0; - uint8_t data[VP8X_CHUNK_SIZE]; - const WebPData vp8x = { data, VP8X_CHUNK_SIZE }; - const WebPMuxImage* images = NULL; - - assert(mux != NULL); - images = mux->images_; // First image. - if (images == NULL || images->img_ == NULL || - images->img_->data_.bytes == NULL) { - return WEBP_MUX_INVALID_ARGUMENT; - } - - // If VP8X chunk(s) is(are) already present, remove them (and later add new - // VP8X chunk with updated flags). - err = MuxDeleteAllNamedData(mux, kChunks[IDX_VP8X].tag); - if (err != WEBP_MUX_OK && err != WEBP_MUX_NOT_FOUND) return err; - - // Set flags. - if (mux->iccp_ != NULL && mux->iccp_->data_.bytes != NULL) { - flags |= ICCP_FLAG; - } - if (mux->exif_ != NULL && mux->exif_->data_.bytes != NULL) { - flags |= EXIF_FLAG; - } - if (mux->xmp_ != NULL && mux->xmp_->data_.bytes != NULL) { - flags |= XMP_FLAG; - } - if (images->header_ != NULL) { - if (images->header_->tag_ == kChunks[IDX_FRGM].tag) { - // This is a fragmented image. - flags |= FRAGMENTS_FLAG; - } else if (images->header_->tag_ == kChunks[IDX_ANMF].tag) { - // This is an image with animation. - flags |= ANIMATION_FLAG; - } - } - if (MuxImageCount(images, WEBP_CHUNK_ALPHA) > 0) { - flags |= ALPHA_FLAG; // Some images have an alpha channel. - } - - err = GetAdjustedCanvasSize(mux, flags, &width, &height); - if (err != WEBP_MUX_OK) return err; - - if (width <= 0 || height <= 0) { - return WEBP_MUX_INVALID_ARGUMENT; - } - if (width > MAX_CANVAS_SIZE || height > MAX_CANVAS_SIZE) { - return WEBP_MUX_INVALID_ARGUMENT; - } - - if (mux->canvas_width_ != 0 || mux->canvas_height_ != 0) { - if (width > mux->canvas_width_ || height > mux->canvas_height_) { - return WEBP_MUX_INVALID_ARGUMENT; - } - width = mux->canvas_width_; - height = mux->canvas_height_; - } - - if (flags == 0 && mux->unknown_ == NULL) { - // For simple file format, VP8X chunk should not be added. - return WEBP_MUX_OK; - } - - if (MuxHasAlpha(images)) { - // This means some frames explicitly/implicitly contain alpha. - // Note: This 'flags' update must NOT be done for a lossless image - // without a VP8X chunk! - flags |= ALPHA_FLAG; - } - - PutLE32(data + 0, flags); // VP8X chunk flags. - PutLE24(data + 4, width - 1); // canvas width. - PutLE24(data + 7, height - 1); // canvas height. - - return MuxSet(mux, kChunks[IDX_VP8X].tag, 1, &vp8x, 1); -} - -// Cleans up 'mux' by removing any unnecessary chunks. -static WebPMuxError MuxCleanup(WebPMux* const mux) { - int num_frames; - int num_fragments; - int num_anim_chunks; - - // If we have an image with a single fragment or frame, and its rectangle - // covers the whole canvas, convert it to a non-animated non-fragmented image - // (to avoid writing FRGM/ANMF chunk unnecessarily). - WebPMuxError err = WebPMuxNumChunks(mux, kChunks[IDX_ANMF].id, &num_frames); - if (err != WEBP_MUX_OK) return err; - err = WebPMuxNumChunks(mux, kChunks[IDX_FRGM].id, &num_fragments); - if (err != WEBP_MUX_OK) return err; - if (num_frames == 1 || num_fragments == 1) { - WebPMuxImage* frame_frag; - err = MuxImageGetNth((const WebPMuxImage**)&mux->images_, 1, &frame_frag); - assert(err == WEBP_MUX_OK); // We know that one frame/fragment does exist. - assert(frame_frag != NULL); - if (frame_frag->header_ != NULL && - ((mux->canvas_width_ == 0 && mux->canvas_height_ == 0) || - (frame_frag->width_ == mux->canvas_width_ && - frame_frag->height_ == mux->canvas_height_))) { - assert(frame_frag->header_->tag_ == kChunks[IDX_ANMF].tag || - frame_frag->header_->tag_ == kChunks[IDX_FRGM].tag); - ChunkDelete(frame_frag->header_); // Removes ANMF/FRGM chunk. - frame_frag->header_ = NULL; - num_frames = 0; - num_fragments = 0; - } - } - // Remove ANIM chunk if this is a non-animated image. - err = WebPMuxNumChunks(mux, kChunks[IDX_ANIM].id, &num_anim_chunks); - if (err != WEBP_MUX_OK) return err; - if (num_anim_chunks >= 1 && num_frames == 0) { - err = MuxDeleteAllNamedData(mux, kChunks[IDX_ANIM].tag); - if (err != WEBP_MUX_OK) return err; - } - return WEBP_MUX_OK; -} - -// Total size of a list of images. -static size_t ImageListDiskSize(const WebPMuxImage* wpi_list) { - size_t size = 0; - while (wpi_list != NULL) { - size += MuxImageDiskSize(wpi_list); - wpi_list = wpi_list->next_; - } - return size; -} - -// Write out the given list of images into 'dst'. -static uint8_t* ImageListEmit(const WebPMuxImage* wpi_list, uint8_t* dst) { - while (wpi_list != NULL) { - dst = MuxImageEmit(wpi_list, dst); - wpi_list = wpi_list->next_; - } - return dst; -} - -WebPMuxError WebPMuxAssemble(WebPMux* mux, WebPData* assembled_data) { - size_t size = 0; - uint8_t* data = NULL; - uint8_t* dst = NULL; - WebPMuxError err; - - if (assembled_data == NULL) { - return WEBP_MUX_INVALID_ARGUMENT; - } - // Clean up returned data, in case something goes wrong. - memset(assembled_data, 0, sizeof(*assembled_data)); - - if (mux == NULL) { - return WEBP_MUX_INVALID_ARGUMENT; - } - - // Finalize mux. - err = MuxCleanup(mux); - if (err != WEBP_MUX_OK) return err; - err = CreateVP8XChunk(mux); - if (err != WEBP_MUX_OK) return err; - - // Allocate data. - size = ChunkListDiskSize(mux->vp8x_) + ChunkListDiskSize(mux->iccp_) - + ChunkListDiskSize(mux->anim_) + ImageListDiskSize(mux->images_) - + ChunkListDiskSize(mux->exif_) + ChunkListDiskSize(mux->xmp_) - + ChunkListDiskSize(mux->unknown_) + RIFF_HEADER_SIZE; - - data = (uint8_t*)WebPSafeMalloc(1ULL, size); - if (data == NULL) return WEBP_MUX_MEMORY_ERROR; - - // Emit header & chunks. - dst = MuxEmitRiffHeader(data, size); - dst = ChunkListEmit(mux->vp8x_, dst); - dst = ChunkListEmit(mux->iccp_, dst); - dst = ChunkListEmit(mux->anim_, dst); - dst = ImageListEmit(mux->images_, dst); - dst = ChunkListEmit(mux->exif_, dst); - dst = ChunkListEmit(mux->xmp_, dst); - dst = ChunkListEmit(mux->unknown_, dst); - assert(dst == data + size); - - // Validate mux. - err = MuxValidate(mux); - if (err != WEBP_MUX_OK) { - WebPSafeFree(data); - data = NULL; - size = 0; - } - - // Finalize data. - assembled_data->bytes = data; - assembled_data->size = size; - - return err; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/mux/muxi.h b/drivers/webp/mux/muxi.h deleted file mode 100644 index 3f6428c4df..0000000000 --- a/drivers/webp/mux/muxi.h +++ /dev/null @@ -1,232 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Internal header for mux library. -// -// Author: Urvang (urvang@google.com) - -#ifndef WEBP_MUX_MUXI_H_ -#define WEBP_MUX_MUXI_H_ - -#include <stdlib.h> -#include "../dec/vp8i.h" -#include "../dec/vp8li.h" -#include "webp/mux.h" - -#ifdef __cplusplus -extern "C" { -#endif - -//------------------------------------------------------------------------------ -// Defines and constants. - -#define MUX_MAJ_VERSION 0 -#define MUX_MIN_VERSION 3 -#define MUX_REV_VERSION 1 - -// Chunk object. -typedef struct WebPChunk WebPChunk; -struct WebPChunk { - uint32_t tag_; - int owner_; // True if *data_ memory is owned internally. - // VP8X, ANIM, and other internally created chunks - // like ANMF/FRGM are always owned. - WebPData data_; - WebPChunk* next_; -}; - -// MuxImage object. Store a full WebP image (including ANMF/FRGM chunk, ALPH -// chunk and VP8/VP8L chunk), -typedef struct WebPMuxImage WebPMuxImage; -struct WebPMuxImage { - WebPChunk* header_; // Corresponds to WEBP_CHUNK_ANMF/WEBP_CHUNK_FRGM. - WebPChunk* alpha_; // Corresponds to WEBP_CHUNK_ALPHA. - WebPChunk* img_; // Corresponds to WEBP_CHUNK_IMAGE. - WebPChunk* unknown_; // Corresponds to WEBP_CHUNK_UNKNOWN. - int width_; - int height_; - int has_alpha_; // Through ALPH chunk or as part of VP8L. - int is_partial_; // True if only some of the chunks are filled. - WebPMuxImage* next_; -}; - -// Main mux object. Stores data chunks. -struct WebPMux { - WebPMuxImage* images_; - WebPChunk* iccp_; - WebPChunk* exif_; - WebPChunk* xmp_; - WebPChunk* anim_; - WebPChunk* vp8x_; - - WebPChunk* unknown_; - int canvas_width_; - int canvas_height_; -}; - -// CHUNK_INDEX enum: used for indexing within 'kChunks' (defined below) only. -// Note: the reason for having two enums ('WebPChunkId' and 'CHUNK_INDEX') is to -// allow two different chunks to have the same id (e.g. WebPChunkId -// 'WEBP_CHUNK_IMAGE' can correspond to CHUNK_INDEX 'IDX_VP8' or 'IDX_VP8L'). -typedef enum { - IDX_VP8X = 0, - IDX_ICCP, - IDX_ANIM, - IDX_ANMF, - IDX_FRGM, - IDX_ALPHA, - IDX_VP8, - IDX_VP8L, - IDX_EXIF, - IDX_XMP, - IDX_UNKNOWN, - - IDX_NIL, - IDX_LAST_CHUNK -} CHUNK_INDEX; - -#define NIL_TAG 0x00000000u // To signal void chunk. - -typedef struct { - uint32_t tag; - WebPChunkId id; - uint32_t size; -} ChunkInfo; - -extern const ChunkInfo kChunks[IDX_LAST_CHUNK]; - -//------------------------------------------------------------------------------ -// Chunk object management. - -// Initialize. -void ChunkInit(WebPChunk* const chunk); - -// Get chunk index from chunk tag. Returns IDX_UNKNOWN if not found. -CHUNK_INDEX ChunkGetIndexFromTag(uint32_t tag); - -// Get chunk id from chunk tag. Returns WEBP_CHUNK_UNKNOWN if not found. -WebPChunkId ChunkGetIdFromTag(uint32_t tag); - -// Convert a fourcc string to a tag. -uint32_t ChunkGetTagFromFourCC(const char fourcc[4]); - -// Get chunk index from fourcc. Returns IDX_UNKNOWN if given fourcc is unknown. -CHUNK_INDEX ChunkGetIndexFromFourCC(const char fourcc[4]); - -// Search for nth chunk with given 'tag' in the chunk list. -// nth = 0 means "last of the list". -WebPChunk* ChunkSearchList(WebPChunk* first, uint32_t nth, uint32_t tag); - -// Fill the chunk with the given data. -WebPMuxError ChunkAssignData(WebPChunk* chunk, const WebPData* const data, - int copy_data, uint32_t tag); - -// Sets 'chunk' at nth position in the 'chunk_list'. -// nth = 0 has the special meaning "last of the list". -// On success ownership is transferred from 'chunk' to the 'chunk_list'. -WebPMuxError ChunkSetNth(WebPChunk* chunk, WebPChunk** chunk_list, - uint32_t nth); - -// Releases chunk and returns chunk->next_. -WebPChunk* ChunkRelease(WebPChunk* const chunk); - -// Deletes given chunk & returns chunk->next_. -WebPChunk* ChunkDelete(WebPChunk* const chunk); - -// Deletes all chunks in the given chunk list. -void ChunkListDelete(WebPChunk** const chunk_list); - -// Returns size of the chunk including chunk header and padding byte (if any). -static WEBP_INLINE size_t SizeWithPadding(size_t chunk_size) { - return CHUNK_HEADER_SIZE + ((chunk_size + 1) & ~1U); -} - -// Size of a chunk including header and padding. -static WEBP_INLINE size_t ChunkDiskSize(const WebPChunk* chunk) { - const size_t data_size = chunk->data_.size; - assert(data_size < MAX_CHUNK_PAYLOAD); - return SizeWithPadding(data_size); -} - -// Total size of a list of chunks. -size_t ChunkListDiskSize(const WebPChunk* chunk_list); - -// Write out the given list of chunks into 'dst'. -uint8_t* ChunkListEmit(const WebPChunk* chunk_list, uint8_t* dst); - -//------------------------------------------------------------------------------ -// MuxImage object management. - -// Initialize. -void MuxImageInit(WebPMuxImage* const wpi); - -// Releases image 'wpi' and returns wpi->next. -WebPMuxImage* MuxImageRelease(WebPMuxImage* const wpi); - -// Delete image 'wpi' and return the next image in the list or NULL. -// 'wpi' can be NULL. -WebPMuxImage* MuxImageDelete(WebPMuxImage* const wpi); - -// Count number of images matching the given tag id in the 'wpi_list'. -// If id == WEBP_CHUNK_NIL, all images will be matched. -int MuxImageCount(const WebPMuxImage* wpi_list, WebPChunkId id); - -// Update width/height/has_alpha info from chunks within wpi. -// Also remove ALPH chunk if not needed. -int MuxImageFinalize(WebPMuxImage* const wpi); - -// Check if given ID corresponds to an image related chunk. -static WEBP_INLINE int IsWPI(WebPChunkId id) { - switch (id) { - case WEBP_CHUNK_ANMF: - case WEBP_CHUNK_FRGM: - case WEBP_CHUNK_ALPHA: - case WEBP_CHUNK_IMAGE: return 1; - default: return 0; - } -} - -// Pushes 'wpi' at the end of 'wpi_list'. -WebPMuxError MuxImagePush(const WebPMuxImage* wpi, WebPMuxImage** wpi_list); - -// Delete nth image in the image list. -WebPMuxError MuxImageDeleteNth(WebPMuxImage** wpi_list, uint32_t nth); - -// Get nth image in the image list. -WebPMuxError MuxImageGetNth(const WebPMuxImage** wpi_list, uint32_t nth, - WebPMuxImage** wpi); - -// Total size of the given image. -size_t MuxImageDiskSize(const WebPMuxImage* const wpi); - -// Write out the given image into 'dst'. -uint8_t* MuxImageEmit(const WebPMuxImage* const wpi, uint8_t* dst); - -//------------------------------------------------------------------------------ -// Helper methods for mux. - -// Checks if the given image list contains at least one image with alpha. -int MuxHasAlpha(const WebPMuxImage* images); - -// Write out RIFF header into 'data', given total data size 'size'. -uint8_t* MuxEmitRiffHeader(uint8_t* const data, size_t size); - -// Returns the list where chunk with given ID is to be inserted in mux. -WebPChunk** MuxGetChunkListFromId(const WebPMux* mux, WebPChunkId id); - -// Validates the given mux object. -WebPMuxError MuxValidate(const WebPMux* const mux); - -//------------------------------------------------------------------------------ - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_MUX_MUXI_H_ */ diff --git a/drivers/webp/mux/muxinternal.c b/drivers/webp/mux/muxinternal.c deleted file mode 100644 index 4babbe82fc..0000000000 --- a/drivers/webp/mux/muxinternal.c +++ /dev/null @@ -1,551 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Internal objects and utils for mux. -// -// Authors: Urvang (urvang@google.com) -// Vikas (vikasa@google.com) - -#include <assert.h> -#include "./muxi.h" -#include "../utils/utils.h" - -#define UNDEFINED_CHUNK_SIZE (-1) - -const ChunkInfo kChunks[] = { - { MKFOURCC('V', 'P', '8', 'X'), WEBP_CHUNK_VP8X, VP8X_CHUNK_SIZE }, - { MKFOURCC('I', 'C', 'C', 'P'), WEBP_CHUNK_ICCP, UNDEFINED_CHUNK_SIZE }, - { MKFOURCC('A', 'N', 'I', 'M'), WEBP_CHUNK_ANIM, ANIM_CHUNK_SIZE }, - { MKFOURCC('A', 'N', 'M', 'F'), WEBP_CHUNK_ANMF, ANMF_CHUNK_SIZE }, - { MKFOURCC('F', 'R', 'G', 'M'), WEBP_CHUNK_FRGM, FRGM_CHUNK_SIZE }, - { MKFOURCC('A', 'L', 'P', 'H'), WEBP_CHUNK_ALPHA, UNDEFINED_CHUNK_SIZE }, - { MKFOURCC('V', 'P', '8', ' '), WEBP_CHUNK_IMAGE, UNDEFINED_CHUNK_SIZE }, - { MKFOURCC('V', 'P', '8', 'L'), WEBP_CHUNK_IMAGE, UNDEFINED_CHUNK_SIZE }, - { MKFOURCC('E', 'X', 'I', 'F'), WEBP_CHUNK_EXIF, UNDEFINED_CHUNK_SIZE }, - { MKFOURCC('X', 'M', 'P', ' '), WEBP_CHUNK_XMP, UNDEFINED_CHUNK_SIZE }, - { NIL_TAG, WEBP_CHUNK_UNKNOWN, UNDEFINED_CHUNK_SIZE }, - - { NIL_TAG, WEBP_CHUNK_NIL, UNDEFINED_CHUNK_SIZE } -}; - -//------------------------------------------------------------------------------ - -int WebPGetMuxVersion(void) { - return (MUX_MAJ_VERSION << 16) | (MUX_MIN_VERSION << 8) | MUX_REV_VERSION; -} - -//------------------------------------------------------------------------------ -// Life of a chunk object. - -void ChunkInit(WebPChunk* const chunk) { - assert(chunk); - memset(chunk, 0, sizeof(*chunk)); - chunk->tag_ = NIL_TAG; -} - -WebPChunk* ChunkRelease(WebPChunk* const chunk) { - WebPChunk* next; - if (chunk == NULL) return NULL; - if (chunk->owner_) { - WebPDataClear(&chunk->data_); - } - next = chunk->next_; - ChunkInit(chunk); - return next; -} - -//------------------------------------------------------------------------------ -// Chunk misc methods. - -CHUNK_INDEX ChunkGetIndexFromTag(uint32_t tag) { - int i; - for (i = 0; kChunks[i].tag != NIL_TAG; ++i) { - if (tag == kChunks[i].tag) return (CHUNK_INDEX)i; - } - return IDX_UNKNOWN; -} - -WebPChunkId ChunkGetIdFromTag(uint32_t tag) { - int i; - for (i = 0; kChunks[i].tag != NIL_TAG; ++i) { - if (tag == kChunks[i].tag) return kChunks[i].id; - } - return WEBP_CHUNK_UNKNOWN; -} - -uint32_t ChunkGetTagFromFourCC(const char fourcc[4]) { - return MKFOURCC(fourcc[0], fourcc[1], fourcc[2], fourcc[3]); -} - -CHUNK_INDEX ChunkGetIndexFromFourCC(const char fourcc[4]) { - const uint32_t tag = ChunkGetTagFromFourCC(fourcc); - return ChunkGetIndexFromTag(tag); -} - -//------------------------------------------------------------------------------ -// Chunk search methods. - -// Returns next chunk in the chunk list with the given tag. -static WebPChunk* ChunkSearchNextInList(WebPChunk* chunk, uint32_t tag) { - while (chunk != NULL && chunk->tag_ != tag) { - chunk = chunk->next_; - } - return chunk; -} - -WebPChunk* ChunkSearchList(WebPChunk* first, uint32_t nth, uint32_t tag) { - uint32_t iter = nth; - first = ChunkSearchNextInList(first, tag); - if (first == NULL) return NULL; - - while (--iter != 0) { - WebPChunk* next_chunk = ChunkSearchNextInList(first->next_, tag); - if (next_chunk == NULL) break; - first = next_chunk; - } - return ((nth > 0) && (iter > 0)) ? NULL : first; -} - -// Outputs a pointer to 'prev_chunk->next_', -// where 'prev_chunk' is the pointer to the chunk at position (nth - 1). -// Returns true if nth chunk was found. -static int ChunkSearchListToSet(WebPChunk** chunk_list, uint32_t nth, - WebPChunk*** const location) { - uint32_t count = 0; - assert(chunk_list != NULL); - *location = chunk_list; - - while (*chunk_list != NULL) { - WebPChunk* const cur_chunk = *chunk_list; - ++count; - if (count == nth) return 1; // Found. - chunk_list = &cur_chunk->next_; - *location = chunk_list; - } - - // *chunk_list is ok to be NULL if adding at last location. - return (nth == 0 || (count == nth - 1)) ? 1 : 0; -} - -//------------------------------------------------------------------------------ -// Chunk writer methods. - -WebPMuxError ChunkAssignData(WebPChunk* chunk, const WebPData* const data, - int copy_data, uint32_t tag) { - // For internally allocated chunks, always copy data & make it owner of data. - if (tag == kChunks[IDX_VP8X].tag || tag == kChunks[IDX_ANIM].tag) { - copy_data = 1; - } - - ChunkRelease(chunk); - - if (data != NULL) { - if (copy_data) { // Copy data. - if (!WebPDataCopy(data, &chunk->data_)) return WEBP_MUX_MEMORY_ERROR; - chunk->owner_ = 1; // Chunk is owner of data. - } else { // Don't copy data. - chunk->data_ = *data; - } - } - chunk->tag_ = tag; - return WEBP_MUX_OK; -} - -WebPMuxError ChunkSetNth(WebPChunk* chunk, WebPChunk** chunk_list, - uint32_t nth) { - WebPChunk* new_chunk; - - if (!ChunkSearchListToSet(chunk_list, nth, &chunk_list)) { - return WEBP_MUX_NOT_FOUND; - } - - new_chunk = (WebPChunk*)WebPSafeMalloc(1ULL, sizeof(*new_chunk)); - if (new_chunk == NULL) return WEBP_MUX_MEMORY_ERROR; - *new_chunk = *chunk; - chunk->owner_ = 0; - new_chunk->next_ = *chunk_list; - *chunk_list = new_chunk; - return WEBP_MUX_OK; -} - -//------------------------------------------------------------------------------ -// Chunk deletion method(s). - -WebPChunk* ChunkDelete(WebPChunk* const chunk) { - WebPChunk* const next = ChunkRelease(chunk); - WebPSafeFree(chunk); - return next; -} - -void ChunkListDelete(WebPChunk** const chunk_list) { - while (*chunk_list != NULL) { - *chunk_list = ChunkDelete(*chunk_list); - } -} - -//------------------------------------------------------------------------------ -// Chunk serialization methods. - -static uint8_t* ChunkEmit(const WebPChunk* const chunk, uint8_t* dst) { - const size_t chunk_size = chunk->data_.size; - assert(chunk); - assert(chunk->tag_ != NIL_TAG); - PutLE32(dst + 0, chunk->tag_); - PutLE32(dst + TAG_SIZE, (uint32_t)chunk_size); - assert(chunk_size == (uint32_t)chunk_size); - memcpy(dst + CHUNK_HEADER_SIZE, chunk->data_.bytes, chunk_size); - if (chunk_size & 1) - dst[CHUNK_HEADER_SIZE + chunk_size] = 0; // Add padding. - return dst + ChunkDiskSize(chunk); -} - -uint8_t* ChunkListEmit(const WebPChunk* chunk_list, uint8_t* dst) { - while (chunk_list != NULL) { - dst = ChunkEmit(chunk_list, dst); - chunk_list = chunk_list->next_; - } - return dst; -} - -size_t ChunkListDiskSize(const WebPChunk* chunk_list) { - size_t size = 0; - while (chunk_list != NULL) { - size += ChunkDiskSize(chunk_list); - chunk_list = chunk_list->next_; - } - return size; -} - -//------------------------------------------------------------------------------ -// Life of a MuxImage object. - -void MuxImageInit(WebPMuxImage* const wpi) { - assert(wpi); - memset(wpi, 0, sizeof(*wpi)); -} - -WebPMuxImage* MuxImageRelease(WebPMuxImage* const wpi) { - WebPMuxImage* next; - if (wpi == NULL) return NULL; - ChunkDelete(wpi->header_); - ChunkDelete(wpi->alpha_); - ChunkDelete(wpi->img_); - ChunkListDelete(&wpi->unknown_); - - next = wpi->next_; - MuxImageInit(wpi); - return next; -} - -//------------------------------------------------------------------------------ -// MuxImage search methods. - -// Get a reference to appropriate chunk list within an image given chunk tag. -static WebPChunk** GetChunkListFromId(const WebPMuxImage* const wpi, - WebPChunkId id) { - assert(wpi != NULL); - switch (id) { - case WEBP_CHUNK_ANMF: - case WEBP_CHUNK_FRGM: return (WebPChunk**)&wpi->header_; - case WEBP_CHUNK_ALPHA: return (WebPChunk**)&wpi->alpha_; - case WEBP_CHUNK_IMAGE: return (WebPChunk**)&wpi->img_; - default: return NULL; - } -} - -int MuxImageCount(const WebPMuxImage* wpi_list, WebPChunkId id) { - int count = 0; - const WebPMuxImage* current; - for (current = wpi_list; current != NULL; current = current->next_) { - if (id == WEBP_CHUNK_NIL) { - ++count; // Special case: count all images. - } else { - const WebPChunk* const wpi_chunk = *GetChunkListFromId(current, id); - if (wpi_chunk != NULL) { - const WebPChunkId wpi_chunk_id = ChunkGetIdFromTag(wpi_chunk->tag_); - if (wpi_chunk_id == id) ++count; // Count images with a matching 'id'. - } - } - } - return count; -} - -// Outputs a pointer to 'prev_wpi->next_', -// where 'prev_wpi' is the pointer to the image at position (nth - 1). -// Returns true if nth image was found. -static int SearchImageToGetOrDelete(WebPMuxImage** wpi_list, uint32_t nth, - WebPMuxImage*** const location) { - uint32_t count = 0; - assert(wpi_list); - *location = wpi_list; - - if (nth == 0) { - nth = MuxImageCount(*wpi_list, WEBP_CHUNK_NIL); - if (nth == 0) return 0; // Not found. - } - - while (*wpi_list != NULL) { - WebPMuxImage* const cur_wpi = *wpi_list; - ++count; - if (count == nth) return 1; // Found. - wpi_list = &cur_wpi->next_; - *location = wpi_list; - } - return 0; // Not found. -} - -//------------------------------------------------------------------------------ -// MuxImage writer methods. - -WebPMuxError MuxImagePush(const WebPMuxImage* wpi, WebPMuxImage** wpi_list) { - WebPMuxImage* new_wpi; - - while (*wpi_list != NULL) { - WebPMuxImage* const cur_wpi = *wpi_list; - if (cur_wpi->next_ == NULL) break; - wpi_list = &cur_wpi->next_; - } - - new_wpi = (WebPMuxImage*)WebPSafeMalloc(1ULL, sizeof(*new_wpi)); - if (new_wpi == NULL) return WEBP_MUX_MEMORY_ERROR; - *new_wpi = *wpi; - new_wpi->next_ = NULL; - - if (*wpi_list != NULL) { - (*wpi_list)->next_ = new_wpi; - } else { - *wpi_list = new_wpi; - } - return WEBP_MUX_OK; -} - -//------------------------------------------------------------------------------ -// MuxImage deletion methods. - -WebPMuxImage* MuxImageDelete(WebPMuxImage* const wpi) { - // Delete the components of wpi. If wpi is NULL this is a noop. - WebPMuxImage* const next = MuxImageRelease(wpi); - WebPSafeFree(wpi); - return next; -} - -WebPMuxError MuxImageDeleteNth(WebPMuxImage** wpi_list, uint32_t nth) { - assert(wpi_list); - if (!SearchImageToGetOrDelete(wpi_list, nth, &wpi_list)) { - return WEBP_MUX_NOT_FOUND; - } - *wpi_list = MuxImageDelete(*wpi_list); - return WEBP_MUX_OK; -} - -//------------------------------------------------------------------------------ -// MuxImage reader methods. - -WebPMuxError MuxImageGetNth(const WebPMuxImage** wpi_list, uint32_t nth, - WebPMuxImage** wpi) { - assert(wpi_list); - assert(wpi); - if (!SearchImageToGetOrDelete((WebPMuxImage**)wpi_list, nth, - (WebPMuxImage***)&wpi_list)) { - return WEBP_MUX_NOT_FOUND; - } - *wpi = (WebPMuxImage*)*wpi_list; - return WEBP_MUX_OK; -} - -//------------------------------------------------------------------------------ -// MuxImage serialization methods. - -// Size of an image. -size_t MuxImageDiskSize(const WebPMuxImage* const wpi) { - size_t size = 0; - if (wpi->header_ != NULL) size += ChunkDiskSize(wpi->header_); - if (wpi->alpha_ != NULL) size += ChunkDiskSize(wpi->alpha_); - if (wpi->img_ != NULL) size += ChunkDiskSize(wpi->img_); - if (wpi->unknown_ != NULL) size += ChunkListDiskSize(wpi->unknown_); - return size; -} - -// Special case as ANMF/FRGM chunk encapsulates other image chunks. -static uint8_t* ChunkEmitSpecial(const WebPChunk* const header, - size_t total_size, uint8_t* dst) { - const size_t header_size = header->data_.size; - const size_t offset_to_next = total_size - CHUNK_HEADER_SIZE; - assert(header->tag_ == kChunks[IDX_ANMF].tag || - header->tag_ == kChunks[IDX_FRGM].tag); - PutLE32(dst + 0, header->tag_); - PutLE32(dst + TAG_SIZE, (uint32_t)offset_to_next); - assert(header_size == (uint32_t)header_size); - memcpy(dst + CHUNK_HEADER_SIZE, header->data_.bytes, header_size); - if (header_size & 1) { - dst[CHUNK_HEADER_SIZE + header_size] = 0; // Add padding. - } - return dst + ChunkDiskSize(header); -} - -uint8_t* MuxImageEmit(const WebPMuxImage* const wpi, uint8_t* dst) { - // Ordering of chunks to be emitted is strictly as follows: - // 1. ANMF/FRGM chunk (if present). - // 2. ALPH chunk (if present). - // 3. VP8/VP8L chunk. - assert(wpi); - if (wpi->header_ != NULL) { - dst = ChunkEmitSpecial(wpi->header_, MuxImageDiskSize(wpi), dst); - } - if (wpi->alpha_ != NULL) dst = ChunkEmit(wpi->alpha_, dst); - if (wpi->img_ != NULL) dst = ChunkEmit(wpi->img_, dst); - if (wpi->unknown_ != NULL) dst = ChunkListEmit(wpi->unknown_, dst); - return dst; -} - -//------------------------------------------------------------------------------ -// Helper methods for mux. - -int MuxHasAlpha(const WebPMuxImage* images) { - while (images != NULL) { - if (images->has_alpha_) return 1; - images = images->next_; - } - return 0; -} - -uint8_t* MuxEmitRiffHeader(uint8_t* const data, size_t size) { - PutLE32(data + 0, MKFOURCC('R', 'I', 'F', 'F')); - PutLE32(data + TAG_SIZE, (uint32_t)size - CHUNK_HEADER_SIZE); - assert(size == (uint32_t)size); - PutLE32(data + TAG_SIZE + CHUNK_SIZE_BYTES, MKFOURCC('W', 'E', 'B', 'P')); - return data + RIFF_HEADER_SIZE; -} - -WebPChunk** MuxGetChunkListFromId(const WebPMux* mux, WebPChunkId id) { - assert(mux != NULL); - switch (id) { - case WEBP_CHUNK_VP8X: return (WebPChunk**)&mux->vp8x_; - case WEBP_CHUNK_ICCP: return (WebPChunk**)&mux->iccp_; - case WEBP_CHUNK_ANIM: return (WebPChunk**)&mux->anim_; - case WEBP_CHUNK_EXIF: return (WebPChunk**)&mux->exif_; - case WEBP_CHUNK_XMP: return (WebPChunk**)&mux->xmp_; - default: return (WebPChunk**)&mux->unknown_; - } -} - -static int IsNotCompatible(int feature, int num_items) { - return (feature != 0) != (num_items > 0); -} - -#define NO_FLAG 0 - -// Test basic constraints: -// retrieval, maximum number of chunks by index (use -1 to skip) -// and feature incompatibility (use NO_FLAG to skip). -// On success returns WEBP_MUX_OK and stores the chunk count in *num. -static WebPMuxError ValidateChunk(const WebPMux* const mux, CHUNK_INDEX idx, - WebPFeatureFlags feature, - uint32_t vp8x_flags, - int max, int* num) { - const WebPMuxError err = - WebPMuxNumChunks(mux, kChunks[idx].id, num); - if (err != WEBP_MUX_OK) return err; - if (max > -1 && *num > max) return WEBP_MUX_INVALID_ARGUMENT; - if (feature != NO_FLAG && IsNotCompatible(vp8x_flags & feature, *num)) { - return WEBP_MUX_INVALID_ARGUMENT; - } - return WEBP_MUX_OK; -} - -WebPMuxError MuxValidate(const WebPMux* const mux) { - int num_iccp; - int num_exif; - int num_xmp; - int num_anim; - int num_frames; - int num_fragments; - int num_vp8x; - int num_images; - int num_alpha; - uint32_t flags; - WebPMuxError err; - - // Verify mux is not NULL. - if (mux == NULL) return WEBP_MUX_INVALID_ARGUMENT; - - // Verify mux has at least one image. - if (mux->images_ == NULL) return WEBP_MUX_INVALID_ARGUMENT; - - err = WebPMuxGetFeatures(mux, &flags); - if (err != WEBP_MUX_OK) return err; - - // At most one color profile chunk. - err = ValidateChunk(mux, IDX_ICCP, ICCP_FLAG, flags, 1, &num_iccp); - if (err != WEBP_MUX_OK) return err; - - // At most one EXIF metadata. - err = ValidateChunk(mux, IDX_EXIF, EXIF_FLAG, flags, 1, &num_exif); - if (err != WEBP_MUX_OK) return err; - - // At most one XMP metadata. - err = ValidateChunk(mux, IDX_XMP, XMP_FLAG, flags, 1, &num_xmp); - if (err != WEBP_MUX_OK) return err; - - // Animation: ANIMATION_FLAG, ANIM chunk and ANMF chunk(s) are consistent. - // At most one ANIM chunk. - err = ValidateChunk(mux, IDX_ANIM, NO_FLAG, flags, 1, &num_anim); - if (err != WEBP_MUX_OK) return err; - err = ValidateChunk(mux, IDX_ANMF, NO_FLAG, flags, -1, &num_frames); - if (err != WEBP_MUX_OK) return err; - - { - const int has_animation = !!(flags & ANIMATION_FLAG); - if (has_animation && (num_anim == 0 || num_frames == 0)) { - return WEBP_MUX_INVALID_ARGUMENT; - } - if (!has_animation && (num_anim == 1 || num_frames > 0)) { - return WEBP_MUX_INVALID_ARGUMENT; - } - } - - // Fragmentation: FRAGMENTS_FLAG and FRGM chunk(s) are consistent. - err = ValidateChunk(mux, IDX_FRGM, FRAGMENTS_FLAG, flags, -1, &num_fragments); - if (err != WEBP_MUX_OK) return err; - - // Verify either VP8X chunk is present OR there is only one elem in - // mux->images_. - err = ValidateChunk(mux, IDX_VP8X, NO_FLAG, flags, 1, &num_vp8x); - if (err != WEBP_MUX_OK) return err; - err = ValidateChunk(mux, IDX_VP8, NO_FLAG, flags, -1, &num_images); - if (err != WEBP_MUX_OK) return err; - if (num_vp8x == 0 && num_images != 1) return WEBP_MUX_INVALID_ARGUMENT; - - // ALPHA_FLAG & alpha chunk(s) are consistent. - if (MuxHasAlpha(mux->images_)) { - if (num_vp8x > 0) { - // VP8X chunk is present, so it should contain ALPHA_FLAG. - if (!(flags & ALPHA_FLAG)) return WEBP_MUX_INVALID_ARGUMENT; - } else { - // VP8X chunk is not present, so ALPH chunks should NOT be present either. - err = WebPMuxNumChunks(mux, WEBP_CHUNK_ALPHA, &num_alpha); - if (err != WEBP_MUX_OK) return err; - if (num_alpha > 0) return WEBP_MUX_INVALID_ARGUMENT; - } - } else { // Mux doesn't need alpha. So, ALPHA_FLAG should NOT be present. - if (flags & ALPHA_FLAG) return WEBP_MUX_INVALID_ARGUMENT; - } - - // num_fragments & num_images are consistent. - if (num_fragments > 0 && num_images != num_fragments) { - return WEBP_MUX_INVALID_ARGUMENT; - } - - return WEBP_MUX_OK; -} - -#undef NO_FLAG - -//------------------------------------------------------------------------------ - diff --git a/drivers/webp/mux/muxread.c b/drivers/webp/mux/muxread.c deleted file mode 100644 index 8957a1e46e..0000000000 --- a/drivers/webp/mux/muxread.c +++ /dev/null @@ -1,544 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Read APIs for mux. -// -// Authors: Urvang (urvang@google.com) -// Vikas (vikasa@google.com) - -#include <assert.h> -#include "./muxi.h" -#include "../utils/utils.h" - -//------------------------------------------------------------------------------ -// Helper method(s). - -// Handy MACRO. -#define SWITCH_ID_LIST(INDEX, LIST) \ - if (idx == (INDEX)) { \ - const WebPChunk* const chunk = ChunkSearchList((LIST), nth, \ - kChunks[(INDEX)].tag); \ - if (chunk) { \ - *data = chunk->data_; \ - return WEBP_MUX_OK; \ - } else { \ - return WEBP_MUX_NOT_FOUND; \ - } \ - } - -static WebPMuxError MuxGet(const WebPMux* const mux, CHUNK_INDEX idx, - uint32_t nth, WebPData* const data) { - assert(mux != NULL); - assert(!IsWPI(kChunks[idx].id)); - WebPDataInit(data); - - SWITCH_ID_LIST(IDX_VP8X, mux->vp8x_); - SWITCH_ID_LIST(IDX_ICCP, mux->iccp_); - SWITCH_ID_LIST(IDX_ANIM, mux->anim_); - SWITCH_ID_LIST(IDX_EXIF, mux->exif_); - SWITCH_ID_LIST(IDX_XMP, mux->xmp_); - SWITCH_ID_LIST(IDX_UNKNOWN, mux->unknown_); - return WEBP_MUX_NOT_FOUND; -} -#undef SWITCH_ID_LIST - -// Fill the chunk with the given data (includes chunk header bytes), after some -// verifications. -static WebPMuxError ChunkVerifyAndAssign(WebPChunk* chunk, - const uint8_t* data, size_t data_size, - size_t riff_size, int copy_data) { - uint32_t chunk_size; - WebPData chunk_data; - - // Sanity checks. - if (data_size < CHUNK_HEADER_SIZE) return WEBP_MUX_NOT_ENOUGH_DATA; - chunk_size = GetLE32(data + TAG_SIZE); - - { - const size_t chunk_disk_size = SizeWithPadding(chunk_size); - if (chunk_disk_size > riff_size) return WEBP_MUX_BAD_DATA; - if (chunk_disk_size > data_size) return WEBP_MUX_NOT_ENOUGH_DATA; - } - - // Data assignment. - chunk_data.bytes = data + CHUNK_HEADER_SIZE; - chunk_data.size = chunk_size; - return ChunkAssignData(chunk, &chunk_data, copy_data, GetLE32(data + 0)); -} - -int MuxImageFinalize(WebPMuxImage* const wpi) { - const WebPChunk* const img = wpi->img_; - const WebPData* const image = &img->data_; - const int is_lossless = (img->tag_ == kChunks[IDX_VP8L].tag); - int w, h; - int vp8l_has_alpha = 0; - const int ok = is_lossless ? - VP8LGetInfo(image->bytes, image->size, &w, &h, &vp8l_has_alpha) : - VP8GetInfo(image->bytes, image->size, image->size, &w, &h); - assert(img != NULL); - if (ok) { - // Ignore ALPH chunk accompanying VP8L. - if (is_lossless && (wpi->alpha_ != NULL)) { - ChunkDelete(wpi->alpha_); - wpi->alpha_ = NULL; - } - wpi->width_ = w; - wpi->height_ = h; - wpi->has_alpha_ = vp8l_has_alpha || (wpi->alpha_ != NULL); - } - return ok; -} - -static int MuxImageParse(const WebPChunk* const chunk, int copy_data, - WebPMuxImage* const wpi) { - const uint8_t* bytes = chunk->data_.bytes; - size_t size = chunk->data_.size; - const uint8_t* const last = bytes + size; - WebPChunk subchunk; - size_t subchunk_size; - ChunkInit(&subchunk); - - assert(chunk->tag_ == kChunks[IDX_ANMF].tag || - chunk->tag_ == kChunks[IDX_FRGM].tag); - assert(!wpi->is_partial_); - - // ANMF/FRGM. - { - const size_t hdr_size = (chunk->tag_ == kChunks[IDX_ANMF].tag) ? - ANMF_CHUNK_SIZE : FRGM_CHUNK_SIZE; - const WebPData temp = { bytes, hdr_size }; - // Each of ANMF and FRGM chunk contain a header at the beginning. So, its - // size should at least be 'hdr_size'. - if (size < hdr_size) goto Fail; - ChunkAssignData(&subchunk, &temp, copy_data, chunk->tag_); - } - ChunkSetNth(&subchunk, &wpi->header_, 1); - wpi->is_partial_ = 1; // Waiting for ALPH and/or VP8/VP8L chunks. - - // Rest of the chunks. - subchunk_size = ChunkDiskSize(&subchunk) - CHUNK_HEADER_SIZE; - bytes += subchunk_size; - size -= subchunk_size; - - while (bytes != last) { - ChunkInit(&subchunk); - if (ChunkVerifyAndAssign(&subchunk, bytes, size, size, - copy_data) != WEBP_MUX_OK) { - goto Fail; - } - switch (ChunkGetIdFromTag(subchunk.tag_)) { - case WEBP_CHUNK_ALPHA: - if (wpi->alpha_ != NULL) goto Fail; // Consecutive ALPH chunks. - if (ChunkSetNth(&subchunk, &wpi->alpha_, 1) != WEBP_MUX_OK) goto Fail; - wpi->is_partial_ = 1; // Waiting for a VP8 chunk. - break; - case WEBP_CHUNK_IMAGE: - if (ChunkSetNth(&subchunk, &wpi->img_, 1) != WEBP_MUX_OK) goto Fail; - if (!MuxImageFinalize(wpi)) goto Fail; - wpi->is_partial_ = 0; // wpi is completely filled. - break; - case WEBP_CHUNK_UNKNOWN: - if (wpi->is_partial_) goto Fail; // Encountered an unknown chunk - // before some image chunks. - if (ChunkSetNth(&subchunk, &wpi->unknown_, 0) != WEBP_MUX_OK) goto Fail; - break; - default: - goto Fail; - break; - } - subchunk_size = ChunkDiskSize(&subchunk); - bytes += subchunk_size; - size -= subchunk_size; - } - if (wpi->is_partial_) goto Fail; - return 1; - - Fail: - ChunkRelease(&subchunk); - return 0; -} - -//------------------------------------------------------------------------------ -// Create a mux object from WebP-RIFF data. - -WebPMux* WebPMuxCreateInternal(const WebPData* bitstream, int copy_data, - int version) { - size_t riff_size; - uint32_t tag; - const uint8_t* end; - WebPMux* mux = NULL; - WebPMuxImage* wpi = NULL; - const uint8_t* data; - size_t size; - WebPChunk chunk; - ChunkInit(&chunk); - - // Sanity checks. - if (WEBP_ABI_IS_INCOMPATIBLE(version, WEBP_MUX_ABI_VERSION)) { - return NULL; // version mismatch - } - if (bitstream == NULL) return NULL; - - data = bitstream->bytes; - size = bitstream->size; - - if (data == NULL) return NULL; - if (size < RIFF_HEADER_SIZE) return NULL; - if (GetLE32(data + 0) != MKFOURCC('R', 'I', 'F', 'F') || - GetLE32(data + CHUNK_HEADER_SIZE) != MKFOURCC('W', 'E', 'B', 'P')) { - return NULL; - } - - mux = WebPMuxNew(); - if (mux == NULL) return NULL; - - if (size < RIFF_HEADER_SIZE + TAG_SIZE) goto Err; - - tag = GetLE32(data + RIFF_HEADER_SIZE); - if (tag != kChunks[IDX_VP8].tag && - tag != kChunks[IDX_VP8L].tag && - tag != kChunks[IDX_VP8X].tag) { - goto Err; // First chunk should be VP8, VP8L or VP8X. - } - - riff_size = SizeWithPadding(GetLE32(data + TAG_SIZE)); - if (riff_size > MAX_CHUNK_PAYLOAD || riff_size > size) { - goto Err; - } else { - if (riff_size < size) { // Redundant data after last chunk. - size = riff_size; // To make sure we don't read any data beyond mux_size. - } - } - - end = data + size; - data += RIFF_HEADER_SIZE; - size -= RIFF_HEADER_SIZE; - - wpi = (WebPMuxImage*)WebPSafeMalloc(1ULL, sizeof(*wpi)); - if (wpi == NULL) goto Err; - MuxImageInit(wpi); - - // Loop over chunks. - while (data != end) { - size_t data_size; - WebPChunkId id; - WebPChunk** chunk_list; - if (ChunkVerifyAndAssign(&chunk, data, size, riff_size, - copy_data) != WEBP_MUX_OK) { - goto Err; - } - data_size = ChunkDiskSize(&chunk); - id = ChunkGetIdFromTag(chunk.tag_); - switch (id) { - case WEBP_CHUNK_ALPHA: - if (wpi->alpha_ != NULL) goto Err; // Consecutive ALPH chunks. - if (ChunkSetNth(&chunk, &wpi->alpha_, 1) != WEBP_MUX_OK) goto Err; - wpi->is_partial_ = 1; // Waiting for a VP8 chunk. - break; - case WEBP_CHUNK_IMAGE: - if (ChunkSetNth(&chunk, &wpi->img_, 1) != WEBP_MUX_OK) goto Err; - if (!MuxImageFinalize(wpi)) goto Err; - wpi->is_partial_ = 0; // wpi is completely filled. - PushImage: - // Add this to mux->images_ list. - if (MuxImagePush(wpi, &mux->images_) != WEBP_MUX_OK) goto Err; - MuxImageInit(wpi); // Reset for reading next image. - break; - case WEBP_CHUNK_ANMF: - if (wpi->is_partial_) goto Err; // Previous wpi is still incomplete. - if (!MuxImageParse(&chunk, copy_data, wpi)) goto Err; - ChunkRelease(&chunk); - goto PushImage; - break; - default: // A non-image chunk. - if (wpi->is_partial_) goto Err; // Encountered a non-image chunk before - // getting all chunks of an image. - chunk_list = MuxGetChunkListFromId(mux, id); // List to add this chunk. - if (ChunkSetNth(&chunk, chunk_list, 0) != WEBP_MUX_OK) goto Err; - if (id == WEBP_CHUNK_VP8X) { // grab global specs - mux->canvas_width_ = GetLE24(data + 12) + 1; - mux->canvas_height_ = GetLE24(data + 15) + 1; - } - break; - } - data += data_size; - size -= data_size; - ChunkInit(&chunk); - } - - // Validate mux if complete. - if (MuxValidate(mux) != WEBP_MUX_OK) goto Err; - - MuxImageDelete(wpi); - return mux; // All OK; - - Err: // Something bad happened. - ChunkRelease(&chunk); - MuxImageDelete(wpi); - WebPMuxDelete(mux); - return NULL; -} - -//------------------------------------------------------------------------------ -// Get API(s). - -// Validates that the given mux has a single image. -static WebPMuxError ValidateForSingleImage(const WebPMux* const mux) { - const int num_images = MuxImageCount(mux->images_, WEBP_CHUNK_IMAGE); - const int num_frames = MuxImageCount(mux->images_, WEBP_CHUNK_ANMF); - const int num_fragments = MuxImageCount(mux->images_, WEBP_CHUNK_FRGM); - - if (num_images == 0) { - // No images in mux. - return WEBP_MUX_NOT_FOUND; - } else if (num_images == 1 && num_frames == 0 && num_fragments == 0) { - // Valid case (single image). - return WEBP_MUX_OK; - } else { - // Frame/Fragment case OR an invalid mux. - return WEBP_MUX_INVALID_ARGUMENT; - } -} - -// Get the canvas width, height and flags after validating that VP8X/VP8/VP8L -// chunk and canvas size are valid. -static WebPMuxError MuxGetCanvasInfo(const WebPMux* const mux, - int* width, int* height, uint32_t* flags) { - int w, h; - uint32_t f = 0; - WebPData data; - assert(mux != NULL); - - // Check if VP8X chunk is present. - if (MuxGet(mux, IDX_VP8X, 1, &data) == WEBP_MUX_OK) { - if (data.size < VP8X_CHUNK_SIZE) return WEBP_MUX_BAD_DATA; - f = GetLE32(data.bytes + 0); - w = GetLE24(data.bytes + 4) + 1; - h = GetLE24(data.bytes + 7) + 1; - } else { - const WebPMuxImage* const wpi = mux->images_; - // Grab user-forced canvas size as default. - w = mux->canvas_width_; - h = mux->canvas_height_; - if (w == 0 && h == 0 && ValidateForSingleImage(mux) == WEBP_MUX_OK) { - // single image and not forced canvas size => use dimension of first frame - assert(wpi != NULL); - w = wpi->width_; - h = wpi->height_; - } - if (wpi != NULL) { - if (wpi->has_alpha_) f |= ALPHA_FLAG; - } - } - if (w * (uint64_t)h >= MAX_IMAGE_AREA) return WEBP_MUX_BAD_DATA; - - if (width != NULL) *width = w; - if (height != NULL) *height = h; - if (flags != NULL) *flags = f; - return WEBP_MUX_OK; -} - -WebPMuxError WebPMuxGetCanvasSize(const WebPMux* mux, int* width, int* height) { - if (mux == NULL || width == NULL || height == NULL) { - return WEBP_MUX_INVALID_ARGUMENT; - } - return MuxGetCanvasInfo(mux, width, height, NULL); -} - -WebPMuxError WebPMuxGetFeatures(const WebPMux* mux, uint32_t* flags) { - if (mux == NULL || flags == NULL) return WEBP_MUX_INVALID_ARGUMENT; - return MuxGetCanvasInfo(mux, NULL, NULL, flags); -} - -static uint8_t* EmitVP8XChunk(uint8_t* const dst, int width, - int height, uint32_t flags) { - const size_t vp8x_size = CHUNK_HEADER_SIZE + VP8X_CHUNK_SIZE; - assert(width >= 1 && height >= 1); - assert(width <= MAX_CANVAS_SIZE && height <= MAX_CANVAS_SIZE); - assert(width * (uint64_t)height < MAX_IMAGE_AREA); - PutLE32(dst, MKFOURCC('V', 'P', '8', 'X')); - PutLE32(dst + TAG_SIZE, VP8X_CHUNK_SIZE); - PutLE32(dst + CHUNK_HEADER_SIZE, flags); - PutLE24(dst + CHUNK_HEADER_SIZE + 4, width - 1); - PutLE24(dst + CHUNK_HEADER_SIZE + 7, height - 1); - return dst + vp8x_size; -} - -// Assemble a single image WebP bitstream from 'wpi'. -static WebPMuxError SynthesizeBitstream(const WebPMuxImage* const wpi, - WebPData* const bitstream) { - uint8_t* dst; - - // Allocate data. - const int need_vp8x = (wpi->alpha_ != NULL); - const size_t vp8x_size = need_vp8x ? CHUNK_HEADER_SIZE + VP8X_CHUNK_SIZE : 0; - const size_t alpha_size = need_vp8x ? ChunkDiskSize(wpi->alpha_) : 0; - // Note: No need to output ANMF/FRGM chunk for a single image. - const size_t size = RIFF_HEADER_SIZE + vp8x_size + alpha_size + - ChunkDiskSize(wpi->img_); - uint8_t* const data = (uint8_t*)WebPSafeMalloc(1ULL, size); - if (data == NULL) return WEBP_MUX_MEMORY_ERROR; - - // Main RIFF header. - dst = MuxEmitRiffHeader(data, size); - - if (need_vp8x) { - dst = EmitVP8XChunk(dst, wpi->width_, wpi->height_, ALPHA_FLAG); // VP8X. - dst = ChunkListEmit(wpi->alpha_, dst); // ALPH. - } - - // Bitstream. - dst = ChunkListEmit(wpi->img_, dst); - assert(dst == data + size); - - // Output. - bitstream->bytes = data; - bitstream->size = size; - return WEBP_MUX_OK; -} - -WebPMuxError WebPMuxGetChunk(const WebPMux* mux, const char fourcc[4], - WebPData* chunk_data) { - CHUNK_INDEX idx; - if (mux == NULL || fourcc == NULL || chunk_data == NULL) { - return WEBP_MUX_INVALID_ARGUMENT; - } - idx = ChunkGetIndexFromFourCC(fourcc); - if (IsWPI(kChunks[idx].id)) { // An image chunk. - return WEBP_MUX_INVALID_ARGUMENT; - } else if (idx != IDX_UNKNOWN) { // A known chunk type. - return MuxGet(mux, idx, 1, chunk_data); - } else { // An unknown chunk type. - const WebPChunk* const chunk = - ChunkSearchList(mux->unknown_, 1, ChunkGetTagFromFourCC(fourcc)); - if (chunk == NULL) return WEBP_MUX_NOT_FOUND; - *chunk_data = chunk->data_; - return WEBP_MUX_OK; - } -} - -static WebPMuxError MuxGetImageInternal(const WebPMuxImage* const wpi, - WebPMuxFrameInfo* const info) { - // Set some defaults for unrelated fields. - info->x_offset = 0; - info->y_offset = 0; - info->duration = 1; - info->dispose_method = WEBP_MUX_DISPOSE_NONE; - info->blend_method = WEBP_MUX_BLEND; - // Extract data for related fields. - info->id = ChunkGetIdFromTag(wpi->img_->tag_); - return SynthesizeBitstream(wpi, &info->bitstream); -} - -static WebPMuxError MuxGetFrameFragmentInternal(const WebPMuxImage* const wpi, - WebPMuxFrameInfo* const frame) { - const int is_frame = (wpi->header_->tag_ == kChunks[IDX_ANMF].tag); - const CHUNK_INDEX idx = is_frame ? IDX_ANMF : IDX_FRGM; - const WebPData* frame_frgm_data; - if (!is_frame) return WEBP_MUX_INVALID_ARGUMENT; - assert(wpi->header_ != NULL); // Already checked by WebPMuxGetFrame(). - // Get frame/fragment chunk. - frame_frgm_data = &wpi->header_->data_; - if (frame_frgm_data->size < kChunks[idx].size) return WEBP_MUX_BAD_DATA; - // Extract info. - frame->x_offset = 2 * GetLE24(frame_frgm_data->bytes + 0); - frame->y_offset = 2 * GetLE24(frame_frgm_data->bytes + 3); - if (is_frame) { - const uint8_t bits = frame_frgm_data->bytes[15]; - frame->duration = GetLE24(frame_frgm_data->bytes + 12); - frame->dispose_method = - (bits & 1) ? WEBP_MUX_DISPOSE_BACKGROUND : WEBP_MUX_DISPOSE_NONE; - frame->blend_method = (bits & 2) ? WEBP_MUX_NO_BLEND : WEBP_MUX_BLEND; - } else { // Defaults for unused values. - frame->duration = 1; - frame->dispose_method = WEBP_MUX_DISPOSE_NONE; - frame->blend_method = WEBP_MUX_BLEND; - } - frame->id = ChunkGetIdFromTag(wpi->header_->tag_); - return SynthesizeBitstream(wpi, &frame->bitstream); -} - -WebPMuxError WebPMuxGetFrame( - const WebPMux* mux, uint32_t nth, WebPMuxFrameInfo* frame) { - WebPMuxError err; - WebPMuxImage* wpi; - - // Sanity checks. - if (mux == NULL || frame == NULL) { - return WEBP_MUX_INVALID_ARGUMENT; - } - - // Get the nth WebPMuxImage. - err = MuxImageGetNth((const WebPMuxImage**)&mux->images_, nth, &wpi); - if (err != WEBP_MUX_OK) return err; - - // Get frame info. - if (wpi->header_ == NULL) { - return MuxGetImageInternal(wpi, frame); - } else { - return MuxGetFrameFragmentInternal(wpi, frame); - } -} - -WebPMuxError WebPMuxGetAnimationParams(const WebPMux* mux, - WebPMuxAnimParams* params) { - WebPData anim; - WebPMuxError err; - - if (mux == NULL || params == NULL) return WEBP_MUX_INVALID_ARGUMENT; - - err = MuxGet(mux, IDX_ANIM, 1, &anim); - if (err != WEBP_MUX_OK) return err; - if (anim.size < kChunks[WEBP_CHUNK_ANIM].size) return WEBP_MUX_BAD_DATA; - params->bgcolor = GetLE32(anim.bytes); - params->loop_count = GetLE16(anim.bytes + 4); - - return WEBP_MUX_OK; -} - -// Get chunk index from chunk id. Returns IDX_NIL if not found. -static CHUNK_INDEX ChunkGetIndexFromId(WebPChunkId id) { - int i; - for (i = 0; kChunks[i].id != WEBP_CHUNK_NIL; ++i) { - if (id == kChunks[i].id) return (CHUNK_INDEX)i; - } - return IDX_NIL; -} - -// Count number of chunks matching 'tag' in the 'chunk_list'. -// If tag == NIL_TAG, any tag will be matched. -static int CountChunks(const WebPChunk* const chunk_list, uint32_t tag) { - int count = 0; - const WebPChunk* current; - for (current = chunk_list; current != NULL; current = current->next_) { - if (tag == NIL_TAG || current->tag_ == tag) { - count++; // Count chunks whose tags match. - } - } - return count; -} - -WebPMuxError WebPMuxNumChunks(const WebPMux* mux, - WebPChunkId id, int* num_elements) { - if (mux == NULL || num_elements == NULL) { - return WEBP_MUX_INVALID_ARGUMENT; - } - - if (IsWPI(id)) { - *num_elements = MuxImageCount(mux->images_, id); - } else { - WebPChunk* const* chunk_list = MuxGetChunkListFromId(mux, id); - const CHUNK_INDEX idx = ChunkGetIndexFromId(id); - *num_elements = CountChunks(*chunk_list, kChunks[idx].tag); - } - - return WEBP_MUX_OK; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/mux_types.h b/drivers/webp/mux_types.h deleted file mode 100644 index c94043a3c0..0000000000 --- a/drivers/webp/mux_types.h +++ /dev/null @@ -1,97 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Data-types common to the mux and demux libraries. -// -// Author: Urvang (urvang@google.com) - -#ifndef WEBP_WEBP_MUX_TYPES_H_ -#define WEBP_WEBP_MUX_TYPES_H_ - -#include <stdlib.h> // free() -#include <string.h> // memset() -#include "./types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -// Note: forward declaring enumerations is not allowed in (strict) C and C++, -// the types are left here for reference. -// typedef enum WebPFeatureFlags WebPFeatureFlags; -// typedef enum WebPMuxAnimDispose WebPMuxAnimDispose; -// typedef enum WebPMuxAnimBlend WebPMuxAnimBlend; -typedef struct WebPData WebPData; - -// VP8X Feature Flags. -typedef enum WebPFeatureFlags { - FRAGMENTS_FLAG = 0x00000001, - ANIMATION_FLAG = 0x00000002, - XMP_FLAG = 0x00000004, - EXIF_FLAG = 0x00000008, - ALPHA_FLAG = 0x00000010, - ICCP_FLAG = 0x00000020 -} WebPFeatureFlags; - -// Dispose method (animation only). Indicates how the area used by the current -// frame is to be treated before rendering the next frame on the canvas. -typedef enum WebPMuxAnimDispose { - WEBP_MUX_DISPOSE_NONE, // Do not dispose. - WEBP_MUX_DISPOSE_BACKGROUND // Dispose to background color. -} WebPMuxAnimDispose; - -// Blend operation (animation only). Indicates how transparent pixels of the -// current frame are blended with those of the previous canvas. -typedef enum WebPMuxAnimBlend { - WEBP_MUX_BLEND, // Blend. - WEBP_MUX_NO_BLEND // Do not blend. -} WebPMuxAnimBlend; - -// Data type used to describe 'raw' data, e.g., chunk data -// (ICC profile, metadata) and WebP compressed image data. -struct WebPData { - const uint8_t* bytes; - size_t size; -}; - -// Initializes the contents of the 'webp_data' object with default values. -static WEBP_INLINE void WebPDataInit(WebPData* webp_data) { - if (webp_data != NULL) { - memset(webp_data, 0, sizeof(*webp_data)); - } -} - -// Clears the contents of the 'webp_data' object by calling free(). Does not -// deallocate the object itself. -static WEBP_INLINE void WebPDataClear(WebPData* webp_data) { - if (webp_data != NULL) { - free((void*)webp_data->bytes); - WebPDataInit(webp_data); - } -} - -// Allocates necessary storage for 'dst' and copies the contents of 'src'. -// Returns true on success. -static WEBP_INLINE int WebPDataCopy(const WebPData* src, WebPData* dst) { - if (src == NULL || dst == NULL) return 0; - WebPDataInit(dst); - if (src->bytes != NULL && src->size != 0) { - dst->bytes = (uint8_t*)malloc(src->size); - if (dst->bytes == NULL) return 0; - memcpy((void*)dst->bytes, src->bytes, src->size); - dst->size = src->size; - } - return 1; -} - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_WEBP_MUX_TYPES_H_ */ diff --git a/drivers/webp/types.h b/drivers/webp/types.h deleted file mode 100644 index 98fff35a11..0000000000 --- a/drivers/webp/types.h +++ /dev/null @@ -1,52 +0,0 @@ -// Copyright 2010 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Common types -// -// Author: Skal (pascal.massimino@gmail.com) - -#ifndef WEBP_WEBP_TYPES_H_ -#define WEBP_WEBP_TYPES_H_ - -#include <stddef.h> // for size_t - -#ifndef _MSC_VER -#include <inttypes.h> -#if defined(__cplusplus) || !defined(__STRICT_ANSI__) || \ - (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) -#define WEBP_INLINE inline -#else -#define WEBP_INLINE -#endif -#else -typedef signed char int8_t; -typedef unsigned char uint8_t; -typedef signed short int16_t; -typedef unsigned short uint16_t; -typedef signed int int32_t; -typedef unsigned int uint32_t; -typedef unsigned long long int uint64_t; -typedef long long int int64_t; -#define WEBP_INLINE __forceinline -#endif /* _MSC_VER */ - -#ifndef WEBP_EXTERN -// This explicitly marks library functions and allows for changing the -// signature for e.g., Windows DLL builds. -# if defined(__GNUC__) && __GNUC__ >= 4 -# define WEBP_EXTERN(type) extern __attribute__ ((visibility ("default"))) type -# else -# define WEBP_EXTERN(type) extern type -# endif /* __GNUC__ >= 4 */ -#endif /* WEBP_EXTERN */ - -// Macro to check ABI compatibility (same major revision number) -#define WEBP_ABI_IS_INCOMPATIBLE(a, b) (((a) >> 8) != ((b) >> 8)) - -#endif /* WEBP_WEBP_TYPES_H_ */ diff --git a/drivers/webp/utils/bit_reader.c b/drivers/webp/utils/bit_reader.c deleted file mode 100644 index 13c6cf316e..0000000000 --- a/drivers/webp/utils/bit_reader.c +++ /dev/null @@ -1,227 +0,0 @@ -// Copyright 2010 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Boolean decoder non-inlined methods -// -// Author: Skal (pascal.massimino@gmail.com) - -#ifdef HAVE_CONFIG_H -#include "webp/config.h" -#endif - -#include "./bit_reader_inl.h" -#include "../utils/utils.h" - -//------------------------------------------------------------------------------ -// VP8BitReader - -void VP8BitReaderSetBuffer(VP8BitReader* const br, - const uint8_t* const start, - size_t size) { - br->buf_ = start; - br->buf_end_ = start + size; - br->buf_max_ = - (size >= sizeof(lbit_t)) ? start + size - sizeof(lbit_t) + 1 - : start; -} - -void VP8InitBitReader(VP8BitReader* const br, - const uint8_t* const start, size_t size) { - assert(br != NULL); - assert(start != NULL); - assert(size < (1u << 31)); // limit ensured by format and upstream checks - br->range_ = 255 - 1; - br->value_ = 0; - br->bits_ = -8; // to load the very first 8bits - br->eof_ = 0; - VP8BitReaderSetBuffer(br, start, size); -#ifdef JAVASCRIPT_ENABLED // html5 required aligned reads - while(((uintptr_t)br->buf_ & 1) != 0 && !br->eof_) - VP8LoadFinalBytes(br); -#else - VP8LoadNewBytes(br); -#endif -} - -void VP8RemapBitReader(VP8BitReader* const br, ptrdiff_t offset) { - if (br->buf_ != NULL) { - br->buf_ += offset; - br->buf_end_ += offset; - br->buf_max_ += offset; - } -} - -const uint8_t kVP8Log2Range[128] = { - 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 0 -}; - -// range = ((range - 1) << kVP8Log2Range[range]) + 1 -const uint8_t kVP8NewRange[128] = { - 127, 127, 191, 127, 159, 191, 223, 127, - 143, 159, 175, 191, 207, 223, 239, 127, - 135, 143, 151, 159, 167, 175, 183, 191, - 199, 207, 215, 223, 231, 239, 247, 127, - 131, 135, 139, 143, 147, 151, 155, 159, - 163, 167, 171, 175, 179, 183, 187, 191, - 195, 199, 203, 207, 211, 215, 219, 223, - 227, 231, 235, 239, 243, 247, 251, 127, - 129, 131, 133, 135, 137, 139, 141, 143, - 145, 147, 149, 151, 153, 155, 157, 159, - 161, 163, 165, 167, 169, 171, 173, 175, - 177, 179, 181, 183, 185, 187, 189, 191, - 193, 195, 197, 199, 201, 203, 205, 207, - 209, 211, 213, 215, 217, 219, 221, 223, - 225, 227, 229, 231, 233, 235, 237, 239, - 241, 243, 245, 247, 249, 251, 253, 127 -}; - -void VP8LoadFinalBytes(VP8BitReader* const br) { - assert(br != NULL && br->buf_ != NULL); - // Only read 8bits at a time - if (br->buf_ < br->buf_end_) { - br->bits_ += 8; - br->value_ = (bit_t)(*br->buf_++) | (br->value_ << 8); - } else if (!br->eof_) { - br->value_ <<= 8; - br->bits_ += 8; - br->eof_ = 1; - } else { - br->bits_ = 0; // This is to avoid undefined behaviour with shifts. - } -} - -//------------------------------------------------------------------------------ -// Higher-level calls - -uint32_t VP8GetValue(VP8BitReader* const br, int bits) { - uint32_t v = 0; - while (bits-- > 0) { - v |= VP8GetBit(br, 0x80) << bits; - } - return v; -} - -int32_t VP8GetSignedValue(VP8BitReader* const br, int bits) { - const int value = VP8GetValue(br, bits); - return VP8Get(br) ? -value : value; -} - -//------------------------------------------------------------------------------ -// VP8LBitReader - -#define VP8L_LOG8_WBITS 4 // Number of bytes needed to store VP8L_WBITS bits. - -#if defined(__arm__) || defined(_M_ARM) || defined(__aarch64__) || \ - defined(__i386__) || defined(_M_IX86) || \ - defined(__x86_64__) || defined(_M_X64) -#define VP8L_USE_FAST_LOAD -#endif - -static const uint32_t kBitMask[VP8L_MAX_NUM_BIT_READ + 1] = { - 0, - 0x000001, 0x000003, 0x000007, 0x00000f, - 0x00001f, 0x00003f, 0x00007f, 0x0000ff, - 0x0001ff, 0x0003ff, 0x0007ff, 0x000fff, - 0x001fff, 0x003fff, 0x007fff, 0x00ffff, - 0x01ffff, 0x03ffff, 0x07ffff, 0x0fffff, - 0x1fffff, 0x3fffff, 0x7fffff, 0xffffff -}; - -void VP8LInitBitReader(VP8LBitReader* const br, const uint8_t* const start, - size_t length) { - size_t i; - vp8l_val_t value = 0; - assert(br != NULL); - assert(start != NULL); - assert(length < 0xfffffff8u); // can't happen with a RIFF chunk. - - br->len_ = length; - br->val_ = 0; - br->bit_pos_ = 0; - br->eos_ = 0; - - if (length > sizeof(br->val_)) { - length = sizeof(br->val_); - } - for (i = 0; i < length; ++i) { - value |= (vp8l_val_t)start[i] << (8 * i); - } - br->val_ = value; - br->pos_ = length; - br->buf_ = start; -} - -void VP8LBitReaderSetBuffer(VP8LBitReader* const br, - const uint8_t* const buf, size_t len) { - assert(br != NULL); - assert(buf != NULL); - assert(len < 0xfffffff8u); // can't happen with a RIFF chunk. - br->buf_ = buf; - br->len_ = len; - // pos_ > len_ should be considered a param error. - br->eos_ = (br->pos_ > br->len_) || VP8LIsEndOfStream(br); -} - -static void VP8LSetEndOfStream(VP8LBitReader* const br) { - br->eos_ = 1; - br->bit_pos_ = 0; // To avoid undefined behaviour with shifts. -} - -// If not at EOS, reload up to VP8L_LBITS byte-by-byte -static void ShiftBytes(VP8LBitReader* const br) { - while (br->bit_pos_ >= 8 && br->pos_ < br->len_) { - br->val_ >>= 8; - br->val_ |= ((vp8l_val_t)br->buf_[br->pos_]) << (VP8L_LBITS - 8); - ++br->pos_; - br->bit_pos_ -= 8; - } - if (VP8LIsEndOfStream(br)) { - VP8LSetEndOfStream(br); - } -} - -void VP8LDoFillBitWindow(VP8LBitReader* const br) { - assert(br->bit_pos_ >= VP8L_WBITS); -#if defined(VP8L_USE_FAST_LOAD) - if (br->pos_ + sizeof(br->val_) < br->len_) { - br->val_ >>= VP8L_WBITS; - br->bit_pos_ -= VP8L_WBITS; - br->val_ |= (vp8l_val_t)HToLE32(WebPMemToUint32(br->buf_ + br->pos_)) << - (VP8L_LBITS - VP8L_WBITS); - br->pos_ += VP8L_LOG8_WBITS; - return; - } -#endif - ShiftBytes(br); // Slow path. -} - -uint32_t VP8LReadBits(VP8LBitReader* const br, int n_bits) { - assert(n_bits >= 0); - // Flag an error if end_of_stream or n_bits is more than allowed limit. - if (!br->eos_ && n_bits <= VP8L_MAX_NUM_BIT_READ) { - const uint32_t val = VP8LPrefetchBits(br) & kBitMask[n_bits]; - const int new_bits = br->bit_pos_ + n_bits; - br->bit_pos_ = new_bits; - ShiftBytes(br); - return val; - } else { - VP8LSetEndOfStream(br); - return 0; - } -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/utils/bit_reader.h b/drivers/webp/utils/bit_reader.h deleted file mode 100644 index c2dcc711c0..0000000000 --- a/drivers/webp/utils/bit_reader.h +++ /dev/null @@ -1,182 +0,0 @@ -// Copyright 2010 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Boolean decoder -// -// Author: Skal (pascal.massimino@gmail.com) -// Vikas Arora (vikaas.arora@gmail.com) - -#ifndef WEBP_UTILS_BIT_READER_H_ -#define WEBP_UTILS_BIT_READER_H_ - -#include <assert.h> -#ifdef _MSC_VER -#include <stdlib.h> // _byteswap_ulong -#endif -#include "webp/types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -// The Boolean decoder needs to maintain infinite precision on the value_ field. -// However, since range_ is only 8bit, we only need an active window of 8 bits -// for value_. Left bits (MSB) gets zeroed and shifted away when value_ falls -// below 128, range_ is updated, and fresh bits read from the bitstream are -// brought in as LSB. To avoid reading the fresh bits one by one (slow), we -// cache BITS of them ahead. The total of (BITS + 8) bits must fit into a -// natural register (with type bit_t). To fetch BITS bits from bitstream we -// use a type lbit_t. -// -// BITS can be any multiple of 8 from 8 to 56 (inclusive). -// Pick values that fit natural register size. - -#ifdef JAVASCRIPT_ENABLED - -#define BITS 16 - -#else - -#if defined(__i386__) || defined(_M_IX86) // x86 32bit -#define BITS 24 -#elif defined(__x86_64__) || defined(_M_X64) // x86 64bit -#define BITS 56 -#elif defined(__arm__) || defined(_M_ARM) // ARM -#define BITS 24 -#elif defined(__aarch64__) // ARM 64bit -#define BITS 56 -#elif defined(__mips__) // MIPS -#define BITS 24 -#else // reasonable default -#define BITS 24 -#endif - -#endif - -//------------------------------------------------------------------------------ -// Derived types and constants: -// bit_t = natural register type for storing 'value_' (which is BITS+8 bits) -// range_t = register for 'range_' (which is 8bits only) - -#if (BITS > 24) -typedef uint64_t bit_t; -#else -typedef uint32_t bit_t; -#endif - -typedef uint32_t range_t; - -//------------------------------------------------------------------------------ -// Bitreader - -typedef struct VP8BitReader VP8BitReader; -struct VP8BitReader { - // boolean decoder (keep the field ordering as is!) - bit_t value_; // current value - range_t range_; // current range minus 1. In [127, 254] interval. - int bits_; // number of valid bits left - // read buffer - const uint8_t* buf_; // next byte to be read - const uint8_t* buf_end_; // end of read buffer - const uint8_t* buf_max_; // max packed-read position on buffer - int eof_; // true if input is exhausted -}; - -// Initialize the bit reader and the boolean decoder. -void VP8InitBitReader(VP8BitReader* const br, - const uint8_t* const start, size_t size); -// Sets the working read buffer. -void VP8BitReaderSetBuffer(VP8BitReader* const br, - const uint8_t* const start, size_t size); - -// Update internal pointers to displace the byte buffer by the -// relative offset 'offset'. -void VP8RemapBitReader(VP8BitReader* const br, ptrdiff_t offset); - -// return the next value made of 'num_bits' bits -uint32_t VP8GetValue(VP8BitReader* const br, int num_bits); -static WEBP_INLINE uint32_t VP8Get(VP8BitReader* const br) { - return VP8GetValue(br, 1); -} - -// return the next value with sign-extension. -int32_t VP8GetSignedValue(VP8BitReader* const br, int num_bits); - -// bit_reader_inl.h will implement the following methods: -// static WEBP_INLINE int VP8GetBit(VP8BitReader* const br, int prob) -// static WEBP_INLINE int VP8GetSigned(VP8BitReader* const br, int v) -// and should be included by the .c files that actually need them. -// This is to avoid recompiling the whole library whenever this file is touched, -// and also allowing platform-specific ad-hoc hacks. - -// ----------------------------------------------------------------------------- -// Bitreader for lossless format - -// maximum number of bits (inclusive) the bit-reader can handle: -#define VP8L_MAX_NUM_BIT_READ 24 - -#define VP8L_LBITS 64 // Number of bits prefetched (= bit-size of vp8l_val_t). -#define VP8L_WBITS 32 // Minimum number of bytes ready after VP8LFillBitWindow. - -typedef uint64_t vp8l_val_t; // right now, this bit-reader can only use 64bit. - -typedef struct { - vp8l_val_t val_; // pre-fetched bits - const uint8_t* buf_; // input byte buffer - size_t len_; // buffer length - size_t pos_; // byte position in buf_ - int bit_pos_; // current bit-reading position in val_ - int eos_; // true if a bit was read past the end of buffer -} VP8LBitReader; - -void VP8LInitBitReader(VP8LBitReader* const br, - const uint8_t* const start, - size_t length); - -// Sets a new data buffer. -void VP8LBitReaderSetBuffer(VP8LBitReader* const br, - const uint8_t* const buffer, size_t length); - -// Reads the specified number of bits from read buffer. -// Flags an error in case end_of_stream or n_bits is more than the allowed limit -// of VP8L_MAX_NUM_BIT_READ (inclusive). -// Flags eos_ if this read attempt is going to cross the read buffer. -uint32_t VP8LReadBits(VP8LBitReader* const br, int n_bits); - -// Return the prefetched bits, so they can be looked up. -static WEBP_INLINE uint32_t VP8LPrefetchBits(VP8LBitReader* const br) { - return (uint32_t)(br->val_ >> (br->bit_pos_ & (VP8L_LBITS - 1))); -} - -// Returns true if there was an attempt at reading bit past the end of -// the buffer. Doesn't set br->eos_ flag. -static WEBP_INLINE int VP8LIsEndOfStream(const VP8LBitReader* const br) { - assert(br->pos_ <= br->len_); - return br->eos_ || ((br->pos_ == br->len_) && (br->bit_pos_ > VP8L_LBITS)); -} - -// For jumping over a number of bits in the bit stream when accessed with -// VP8LPrefetchBits and VP8LFillBitWindow. -static WEBP_INLINE void VP8LSetBitPos(VP8LBitReader* const br, int val) { - br->bit_pos_ = val; - br->eos_ = VP8LIsEndOfStream(br); -} - -// Advances the read buffer by 4 bytes to make room for reading next 32 bits. -// Speed critical, but infrequent part of the code can be non-inlined. -extern void VP8LDoFillBitWindow(VP8LBitReader* const br); -static WEBP_INLINE void VP8LFillBitWindow(VP8LBitReader* const br) { - if (br->bit_pos_ >= VP8L_WBITS) VP8LDoFillBitWindow(br); -} - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_UTILS_BIT_READER_H_ */ diff --git a/drivers/webp/utils/bit_reader_inl.h b/drivers/webp/utils/bit_reader_inl.h deleted file mode 100644 index 21faf14d83..0000000000 --- a/drivers/webp/utils/bit_reader_inl.h +++ /dev/null @@ -1,173 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Specific inlined methods for boolean decoder [VP8GetBit() ...] -// This file should be included by the .c sources that actually need to call -// these methods. -// -// Author: Skal (pascal.massimino@gmail.com) - -#ifndef WEBP_UTILS_BIT_READER_INL_H_ -#define WEBP_UTILS_BIT_READER_INL_H_ - -#ifdef HAVE_CONFIG_H -#include "webp/config.h" -#endif - -#ifdef WEBP_FORCE_ALIGNED -#include <string.h> // memcpy -#endif - -#include "../dsp/dsp.h" -#include "./bit_reader.h" -#include "./endian_inl.h" - -#ifdef __cplusplus -extern "C" { -#endif - -//------------------------------------------------------------------------------ -// Derived type lbit_t = natural type for memory I/O - -#if (BITS > 32) -typedef uint64_t lbit_t; -#elif (BITS > 16) -typedef uint32_t lbit_t; -#elif (BITS > 8) -typedef uint16_t lbit_t; -#else -typedef uint8_t lbit_t; -#endif - -extern const uint8_t kVP8Log2Range[128]; -extern const uint8_t kVP8NewRange[128]; - -// special case for the tail byte-reading -void VP8LoadFinalBytes(VP8BitReader* const br); - -//------------------------------------------------------------------------------ -// Inlined critical functions - -// makes sure br->value_ has at least BITS bits worth of data -static WEBP_UBSAN_IGNORE_UNDEF WEBP_INLINE -void VP8LoadNewBytes(VP8BitReader* const br) { - assert(br != NULL && br->buf_ != NULL); - // Read 'BITS' bits at a time if possible. - if (br->buf_ < br->buf_max_) { - // convert memory type to register type (with some zero'ing!) - bit_t bits; -#if defined(WEBP_FORCE_ALIGNED) - lbit_t in_bits; - memcpy(&in_bits, br->buf_, sizeof(in_bits)); -#elif defined(WEBP_USE_MIPS32) - // This is needed because of un-aligned read. - lbit_t in_bits; - lbit_t* p_buf_ = (lbit_t*)br->buf_; - __asm__ volatile( - ".set push \n\t" - ".set at \n\t" - ".set macro \n\t" - "ulw %[in_bits], 0(%[p_buf_]) \n\t" - ".set pop \n\t" - : [in_bits]"=r"(in_bits) - : [p_buf_]"r"(p_buf_) - : "memory", "at" - ); -#else - const lbit_t in_bits = *(const lbit_t*)br->buf_; -#endif - br->buf_ += BITS >> 3; -#if !defined(WORDS_BIGENDIAN) -#if (BITS > 32) - bits = BSwap64(in_bits); - bits >>= 64 - BITS; -#elif (BITS >= 24) - bits = BSwap32(in_bits); - bits >>= (32 - BITS); -#elif (BITS == 16) - bits = BSwap16(in_bits); -#else // BITS == 8 - bits = (bit_t)in_bits; -#endif // BITS > 32 -#else // WORDS_BIGENDIAN - bits = (bit_t)in_bits; - if (BITS != 8 * sizeof(bit_t)) bits >>= (8 * sizeof(bit_t) - BITS); -#endif - br->value_ = bits | (br->value_ << BITS); - br->bits_ += BITS; - } else { - VP8LoadFinalBytes(br); // no need to be inlined - } -} - -// Read a bit with proba 'prob'. Speed-critical function! -static WEBP_INLINE int VP8GetBit(VP8BitReader* const br, int prob) { - // Don't move this declaration! It makes a big speed difference to store - // 'range' *before* calling VP8LoadNewBytes(), even if this function doesn't - // alter br->range_ value. - range_t range = br->range_; - if (br->bits_ < 0) { - VP8LoadNewBytes(br); - } - { - const int pos = br->bits_; - const range_t split = (range * prob) >> 8; - const range_t value = (range_t)(br->value_ >> pos); -#if defined(__arm__) || defined(_M_ARM) // ARM-specific - const int bit = ((int)(split - value) >> 31) & 1; - if (value > split) { - range -= split + 1; - br->value_ -= (bit_t)(split + 1) << pos; - } else { - range = split; - } -#else // faster version on x86 - int bit; // Don't use 'const int bit = (value > split);", it's slower. - if (value > split) { - range -= split + 1; - br->value_ -= (bit_t)(split + 1) << pos; - bit = 1; - } else { - range = split; - bit = 0; - } -#endif - if (range <= (range_t)0x7e) { - const int shift = kVP8Log2Range[range]; - range = kVP8NewRange[range]; - br->bits_ -= shift; - } - br->range_ = range; - return bit; - } -} - -// simplified version of VP8GetBit() for prob=0x80 (note shift is always 1 here) -static WEBP_INLINE int VP8GetSigned(VP8BitReader* const br, int v) { - if (br->bits_ < 0) { - VP8LoadNewBytes(br); - } - { - const int pos = br->bits_; - const range_t split = br->range_ >> 1; - const range_t value = (range_t)(br->value_ >> pos); - const int32_t mask = (int32_t)(split - value) >> 31; // -1 or 0 - br->bits_ -= 1; - br->range_ += mask; - br->range_ |= 1; - br->value_ -= (bit_t)((split + 1) & mask) << pos; - return (v ^ mask) - mask; - } -} - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif // WEBP_UTILS_BIT_READER_INL_H_ diff --git a/drivers/webp/utils/bit_writer.c b/drivers/webp/utils/bit_writer.c deleted file mode 100644 index 064428691b..0000000000 --- a/drivers/webp/utils/bit_writer.c +++ /dev/null @@ -1,319 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Bit writing and boolean coder -// -// Author: Skal (pascal.massimino@gmail.com) -// Vikas Arora (vikaas.arora@gmail.com) - -#include <assert.h> -#include <string.h> // for memcpy() -#include <stdlib.h> - -#include "./bit_writer.h" -#include "./endian_inl.h" -#include "./utils.h" - -//------------------------------------------------------------------------------ -// VP8BitWriter - -static int BitWriterResize(VP8BitWriter* const bw, size_t extra_size) { - uint8_t* new_buf; - size_t new_size; - const uint64_t needed_size_64b = (uint64_t)bw->pos_ + extra_size; - const size_t needed_size = (size_t)needed_size_64b; - if (needed_size_64b != needed_size) { - bw->error_ = 1; - return 0; - } - if (needed_size <= bw->max_pos_) return 1; - // If the following line wraps over 32bit, the test just after will catch it. - new_size = 2 * bw->max_pos_; - if (new_size < needed_size) new_size = needed_size; - if (new_size < 1024) new_size = 1024; - new_buf = (uint8_t*)WebPSafeMalloc(1ULL, new_size); - if (new_buf == NULL) { - bw->error_ = 1; - return 0; - } - if (bw->pos_ > 0) { - assert(bw->buf_ != NULL); - memcpy(new_buf, bw->buf_, bw->pos_); - } - WebPSafeFree(bw->buf_); - bw->buf_ = new_buf; - bw->max_pos_ = new_size; - return 1; -} - -static void Flush(VP8BitWriter* const bw) { - const int s = 8 + bw->nb_bits_; - const int32_t bits = bw->value_ >> s; - assert(bw->nb_bits_ >= 0); - bw->value_ -= bits << s; - bw->nb_bits_ -= 8; - if ((bits & 0xff) != 0xff) { - size_t pos = bw->pos_; - if (!BitWriterResize(bw, bw->run_ + 1)) { - return; - } - if (bits & 0x100) { // overflow -> propagate carry over pending 0xff's - if (pos > 0) bw->buf_[pos - 1]++; - } - if (bw->run_ > 0) { - const int value = (bits & 0x100) ? 0x00 : 0xff; - for (; bw->run_ > 0; --bw->run_) bw->buf_[pos++] = value; - } - bw->buf_[pos++] = bits; - bw->pos_ = pos; - } else { - bw->run_++; // delay writing of bytes 0xff, pending eventual carry. - } -} - -//------------------------------------------------------------------------------ -// renormalization - -static const uint8_t kNorm[128] = { // renorm_sizes[i] = 8 - log2(i) - 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 0 -}; - -// range = ((range + 1) << kVP8Log2Range[range]) - 1 -static const uint8_t kNewRange[128] = { - 127, 127, 191, 127, 159, 191, 223, 127, 143, 159, 175, 191, 207, 223, 239, - 127, 135, 143, 151, 159, 167, 175, 183, 191, 199, 207, 215, 223, 231, 239, - 247, 127, 131, 135, 139, 143, 147, 151, 155, 159, 163, 167, 171, 175, 179, - 183, 187, 191, 195, 199, 203, 207, 211, 215, 219, 223, 227, 231, 235, 239, - 243, 247, 251, 127, 129, 131, 133, 135, 137, 139, 141, 143, 145, 147, 149, - 151, 153, 155, 157, 159, 161, 163, 165, 167, 169, 171, 173, 175, 177, 179, - 181, 183, 185, 187, 189, 191, 193, 195, 197, 199, 201, 203, 205, 207, 209, - 211, 213, 215, 217, 219, 221, 223, 225, 227, 229, 231, 233, 235, 237, 239, - 241, 243, 245, 247, 249, 251, 253, 127 -}; - -int VP8PutBit(VP8BitWriter* const bw, int bit, int prob) { - const int split = (bw->range_ * prob) >> 8; - if (bit) { - bw->value_ += split + 1; - bw->range_ -= split + 1; - } else { - bw->range_ = split; - } - if (bw->range_ < 127) { // emit 'shift' bits out and renormalize - const int shift = kNorm[bw->range_]; - bw->range_ = kNewRange[bw->range_]; - bw->value_ <<= shift; - bw->nb_bits_ += shift; - if (bw->nb_bits_ > 0) Flush(bw); - } - return bit; -} - -int VP8PutBitUniform(VP8BitWriter* const bw, int bit) { - const int split = bw->range_ >> 1; - if (bit) { - bw->value_ += split + 1; - bw->range_ -= split + 1; - } else { - bw->range_ = split; - } - if (bw->range_ < 127) { - bw->range_ = kNewRange[bw->range_]; - bw->value_ <<= 1; - bw->nb_bits_ += 1; - if (bw->nb_bits_ > 0) Flush(bw); - } - return bit; -} - -void VP8PutBits(VP8BitWriter* const bw, uint32_t value, int nb_bits) { - uint32_t mask; - assert(nb_bits > 0 && nb_bits < 32); - for (mask = 1u << (nb_bits - 1); mask; mask >>= 1) - VP8PutBitUniform(bw, value & mask); -} - -void VP8PutSignedBits(VP8BitWriter* const bw, int value, int nb_bits) { - if (!VP8PutBitUniform(bw, value != 0)) - return; - if (value < 0) { - VP8PutBits(bw, ((-value) << 1) | 1, nb_bits + 1); - } else { - VP8PutBits(bw, value << 1, nb_bits + 1); - } -} - -//------------------------------------------------------------------------------ - -int VP8BitWriterInit(VP8BitWriter* const bw, size_t expected_size) { - bw->range_ = 255 - 1; - bw->value_ = 0; - bw->run_ = 0; - bw->nb_bits_ = -8; - bw->pos_ = 0; - bw->max_pos_ = 0; - bw->error_ = 0; - bw->buf_ = NULL; - return (expected_size > 0) ? BitWriterResize(bw, expected_size) : 1; -} - -uint8_t* VP8BitWriterFinish(VP8BitWriter* const bw) { - VP8PutBits(bw, 0, 9 - bw->nb_bits_); - bw->nb_bits_ = 0; // pad with zeroes - Flush(bw); - return bw->buf_; -} - -int VP8BitWriterAppend(VP8BitWriter* const bw, - const uint8_t* data, size_t size) { - assert(data != NULL); - if (bw->nb_bits_ != -8) return 0; // Flush() must have been called - if (!BitWriterResize(bw, size)) return 0; - memcpy(bw->buf_ + bw->pos_, data, size); - bw->pos_ += size; - return 1; -} - -void VP8BitWriterWipeOut(VP8BitWriter* const bw) { - if (bw != NULL) { - WebPSafeFree(bw->buf_); - memset(bw, 0, sizeof(*bw)); - } -} - -//------------------------------------------------------------------------------ -// VP8LBitWriter - -// This is the minimum amount of size the memory buffer is guaranteed to grow -// when extra space is needed. -#define MIN_EXTRA_SIZE (32768ULL) - -// Returns 1 on success. -static int VP8LBitWriterResize(VP8LBitWriter* const bw, size_t extra_size) { - uint8_t* allocated_buf; - size_t allocated_size; - const size_t max_bytes = bw->end_ - bw->buf_; - const size_t current_size = bw->cur_ - bw->buf_; - const uint64_t size_required_64b = (uint64_t)current_size + extra_size; - const size_t size_required = (size_t)size_required_64b; - if (size_required != size_required_64b) { - bw->error_ = 1; - return 0; - } - if (max_bytes > 0 && size_required <= max_bytes) return 1; - allocated_size = (3 * max_bytes) >> 1; - if (allocated_size < size_required) allocated_size = size_required; - // make allocated size multiple of 1k - allocated_size = (((allocated_size >> 10) + 1) << 10); - allocated_buf = (uint8_t*)WebPSafeMalloc(1ULL, allocated_size); - if (allocated_buf == NULL) { - bw->error_ = 1; - return 0; - } - if (current_size > 0) { - memcpy(allocated_buf, bw->buf_, current_size); - } - WebPSafeFree(bw->buf_); - bw->buf_ = allocated_buf; - bw->cur_ = bw->buf_ + current_size; - bw->end_ = bw->buf_ + allocated_size; - return 1; -} - -int VP8LBitWriterInit(VP8LBitWriter* const bw, size_t expected_size) { - memset(bw, 0, sizeof(*bw)); - return VP8LBitWriterResize(bw, expected_size); -} - -void VP8LBitWriterWipeOut(VP8LBitWriter* const bw) { - if (bw != NULL) { - WebPSafeFree(bw->buf_); - memset(bw, 0, sizeof(*bw)); - } -} - -void VP8LPutBitsFlushBits(VP8LBitWriter* const bw) { - // If needed, make some room by flushing some bits out. - if (bw->cur_ + VP8L_WRITER_BYTES > bw->end_) { - const uint64_t extra_size = (bw->end_ - bw->buf_) + MIN_EXTRA_SIZE; - if (extra_size != (size_t)extra_size || - !VP8LBitWriterResize(bw, (size_t)extra_size)) { - bw->cur_ = bw->buf_; - bw->error_ = 1; - return; - } - } - *(vp8l_wtype_t*)bw->cur_ = (vp8l_wtype_t)WSWAP((vp8l_wtype_t)bw->bits_); - bw->cur_ += VP8L_WRITER_BYTES; - bw->bits_ >>= VP8L_WRITER_BITS; - bw->used_ -= VP8L_WRITER_BITS; -} - -void VP8LPutBitsInternal(VP8LBitWriter* const bw, uint32_t bits, int n_bits) { - assert(n_bits <= 32); - // That's the max we can handle: - assert(sizeof(vp8l_wtype_t) == 2); - if (n_bits > 0) { - vp8l_atype_t lbits = bw->bits_; - int used = bw->used_; - // Special case of overflow handling for 32bit accumulator (2-steps flush). -#if VP8L_WRITER_BITS == 16 - if (used + n_bits >= VP8L_WRITER_MAX_BITS) { - // Fill up all the VP8L_WRITER_MAX_BITS so it can be flushed out below. - const int shift = VP8L_WRITER_MAX_BITS - used; - lbits |= (vp8l_atype_t)bits << used; - used = VP8L_WRITER_MAX_BITS; - n_bits -= shift; - bits >>= shift; - assert(n_bits <= VP8L_WRITER_MAX_BITS); - } -#endif - // If needed, make some room by flushing some bits out. - while (used >= VP8L_WRITER_BITS) { - if (bw->cur_ + VP8L_WRITER_BYTES > bw->end_) { - const uint64_t extra_size = (bw->end_ - bw->buf_) + MIN_EXTRA_SIZE; - if (extra_size != (size_t)extra_size || - !VP8LBitWriterResize(bw, (size_t)extra_size)) { - bw->cur_ = bw->buf_; - bw->error_ = 1; - return; - } - } - *(vp8l_wtype_t*)bw->cur_ = (vp8l_wtype_t)WSWAP((vp8l_wtype_t)lbits); - bw->cur_ += VP8L_WRITER_BYTES; - lbits >>= VP8L_WRITER_BITS; - used -= VP8L_WRITER_BITS; - } - bw->bits_ = lbits | ((vp8l_atype_t)bits << used); - bw->used_ = used + n_bits; - } -} - -uint8_t* VP8LBitWriterFinish(VP8LBitWriter* const bw) { - // flush leftover bits - if (VP8LBitWriterResize(bw, (bw->used_ + 7) >> 3)) { - while (bw->used_ > 0) { - *bw->cur_++ = (uint8_t)bw->bits_; - bw->bits_ >>= 8; - bw->used_ -= 8; - } - bw->used_ = 0; - } - return bw->buf_; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/utils/bit_writer.h b/drivers/webp/utils/bit_writer.h deleted file mode 100644 index 867a5ee055..0000000000 --- a/drivers/webp/utils/bit_writer.h +++ /dev/null @@ -1,145 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Bit writing and boolean coder -// -// Author: Skal (pascal.massimino@gmail.com) - -#ifndef WEBP_UTILS_BIT_WRITER_H_ -#define WEBP_UTILS_BIT_WRITER_H_ - -#include "webp/types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -//------------------------------------------------------------------------------ -// Bit-writing - -typedef struct VP8BitWriter VP8BitWriter; -struct VP8BitWriter { - int32_t range_; // range-1 - int32_t value_; - int run_; // number of outstanding bits - int nb_bits_; // number of pending bits - uint8_t* buf_; // internal buffer. Re-allocated regularly. Not owned. - size_t pos_; - size_t max_pos_; - int error_; // true in case of error -}; - -// Initialize the object. Allocates some initial memory based on expected_size. -int VP8BitWriterInit(VP8BitWriter* const bw, size_t expected_size); -// Finalize the bitstream coding. Returns a pointer to the internal buffer. -uint8_t* VP8BitWriterFinish(VP8BitWriter* const bw); -// Release any pending memory and zeroes the object. Not a mandatory call. -// Only useful in case of error, when the internal buffer hasn't been grabbed! -void VP8BitWriterWipeOut(VP8BitWriter* const bw); - -int VP8PutBit(VP8BitWriter* const bw, int bit, int prob); -int VP8PutBitUniform(VP8BitWriter* const bw, int bit); -void VP8PutBits(VP8BitWriter* const bw, uint32_t value, int nb_bits); -void VP8PutSignedBits(VP8BitWriter* const bw, int value, int nb_bits); - -// Appends some bytes to the internal buffer. Data is copied. -int VP8BitWriterAppend(VP8BitWriter* const bw, - const uint8_t* data, size_t size); - -// return approximate write position (in bits) -static WEBP_INLINE uint64_t VP8BitWriterPos(const VP8BitWriter* const bw) { - return (uint64_t)(bw->pos_ + bw->run_) * 8 + 8 + bw->nb_bits_; -} - -// Returns a pointer to the internal buffer. -static WEBP_INLINE uint8_t* VP8BitWriterBuf(const VP8BitWriter* const bw) { - return bw->buf_; -} -// Returns the size of the internal buffer. -static WEBP_INLINE size_t VP8BitWriterSize(const VP8BitWriter* const bw) { - return bw->pos_; -} - -//------------------------------------------------------------------------------ -// VP8LBitWriter - -#if defined(__x86_64__) || defined(_M_X64) // 64bit -typedef uint64_t vp8l_atype_t; // accumulator type -typedef uint32_t vp8l_wtype_t; // writing type -#define WSWAP HToLE32 -#define VP8L_WRITER_BYTES 4 // sizeof(vp8l_wtype_t) -#define VP8L_WRITER_BITS 32 // 8 * sizeof(vp8l_wtype_t) -#define VP8L_WRITER_MAX_BITS 64 // 8 * sizeof(vp8l_atype_t) -#else -typedef uint32_t vp8l_atype_t; -typedef uint16_t vp8l_wtype_t; -#define WSWAP HToLE16 -#define VP8L_WRITER_BYTES 2 -#define VP8L_WRITER_BITS 16 -#define VP8L_WRITER_MAX_BITS 32 -#endif - -typedef struct { - vp8l_atype_t bits_; // bit accumulator - int used_; // number of bits used in accumulator - uint8_t* buf_; // start of buffer - uint8_t* cur_; // current write position - uint8_t* end_; // end of buffer - - // After all bits are written (VP8LBitWriterFinish()), the caller must observe - // the state of error_. A value of 1 indicates that a memory allocation - // failure has happened during bit writing. A value of 0 indicates successful - // writing of bits. - int error_; -} VP8LBitWriter; - -static WEBP_INLINE size_t VP8LBitWriterNumBytes(VP8LBitWriter* const bw) { - return (bw->cur_ - bw->buf_) + ((bw->used_ + 7) >> 3); -} - -// Returns false in case of memory allocation error. -int VP8LBitWriterInit(VP8LBitWriter* const bw, size_t expected_size); -// Finalize the bitstream coding. Returns a pointer to the internal buffer. -uint8_t* VP8LBitWriterFinish(VP8LBitWriter* const bw); -// Release any pending memory and zeroes the object. -void VP8LBitWriterWipeOut(VP8LBitWriter* const bw); - -// Internal function for VP8LPutBits flushing 32 bits from the written state. -void VP8LPutBitsFlushBits(VP8LBitWriter* const bw); - -// PutBits internal function used in the 16 bit vp8l_wtype_t case. -void VP8LPutBitsInternal(VP8LBitWriter* const bw, uint32_t bits, int n_bits); - -// This function writes bits into bytes in increasing addresses (little endian), -// and within a byte least-significant-bit first. -// This function can write up to 32 bits in one go, but VP8LBitReader can only -// read 24 bits max (VP8L_MAX_NUM_BIT_READ). -// VP8LBitWriter's error_ flag is set in case of memory allocation error. -static WEBP_INLINE void VP8LPutBits(VP8LBitWriter* const bw, - uint32_t bits, int n_bits) { - if (sizeof(vp8l_wtype_t) == 4) { - if (n_bits > 0) { - if (bw->used_ >= 32) { - VP8LPutBitsFlushBits(bw); - } - bw->bits_ |= (vp8l_atype_t)bits << bw->used_; - bw->used_ += n_bits; - } - } else { - VP8LPutBitsInternal(bw, bits, n_bits); - } -} - -//------------------------------------------------------------------------------ - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_UTILS_BIT_WRITER_H_ */ diff --git a/drivers/webp/utils/color_cache.c b/drivers/webp/utils/color_cache.c deleted file mode 100644 index c34b2e7f1a..0000000000 --- a/drivers/webp/utils/color_cache.c +++ /dev/null @@ -1,49 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Color Cache for WebP Lossless -// -// Author: Jyrki Alakuijala (jyrki@google.com) - -#include <assert.h> -#include <stdlib.h> -#include <string.h> -#include "./color_cache.h" -#include "./utils.h" - -//------------------------------------------------------------------------------ -// VP8LColorCache. - -int VP8LColorCacheInit(VP8LColorCache* const cc, int hash_bits) { - const int hash_size = 1 << hash_bits; - assert(cc != NULL); - assert(hash_bits > 0); - cc->colors_ = (uint32_t*)WebPSafeCalloc((uint64_t)hash_size, - sizeof(*cc->colors_)); - if (cc->colors_ == NULL) return 0; - cc->hash_shift_ = 32 - hash_bits; - cc->hash_bits_ = hash_bits; - return 1; -} - -void VP8LColorCacheClear(VP8LColorCache* const cc) { - if (cc != NULL) { - WebPSafeFree(cc->colors_); - cc->colors_ = NULL; - } -} - -void VP8LColorCacheCopy(const VP8LColorCache* const src, - VP8LColorCache* const dst) { - assert(src != NULL); - assert(dst != NULL); - assert(src->hash_bits_ == dst->hash_bits_); - memcpy(dst->colors_, src->colors_, - ((size_t)1u << dst->hash_bits_) * sizeof(*dst->colors_)); -} diff --git a/drivers/webp/utils/color_cache.h b/drivers/webp/utils/color_cache.h deleted file mode 100644 index 34299e4c4e..0000000000 --- a/drivers/webp/utils/color_cache.h +++ /dev/null @@ -1,80 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Color Cache for WebP Lossless -// -// Authors: Jyrki Alakuijala (jyrki@google.com) -// Urvang Joshi (urvang@google.com) - -#ifndef WEBP_UTILS_COLOR_CACHE_H_ -#define WEBP_UTILS_COLOR_CACHE_H_ - -#include "webp/types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -// Main color cache struct. -typedef struct { - uint32_t *colors_; // color entries - int hash_shift_; // Hash shift: 32 - hash_bits_. - int hash_bits_; -} VP8LColorCache; - -static const uint32_t kHashMul = 0x1e35a7bd; - -static WEBP_INLINE uint32_t VP8LColorCacheLookup( - const VP8LColorCache* const cc, uint32_t key) { - assert((key >> cc->hash_bits_) == 0u); - return cc->colors_[key]; -} - -static WEBP_INLINE void VP8LColorCacheSet(const VP8LColorCache* const cc, - uint32_t key, uint32_t argb) { - assert((key >> cc->hash_bits_) == 0u); - cc->colors_[key] = argb; -} - -static WEBP_INLINE void VP8LColorCacheInsert(const VP8LColorCache* const cc, - uint32_t argb) { - const uint32_t key = (kHashMul * argb) >> cc->hash_shift_; - cc->colors_[key] = argb; -} - -static WEBP_INLINE int VP8LColorCacheGetIndex(const VP8LColorCache* const cc, - uint32_t argb) { - return (kHashMul * argb) >> cc->hash_shift_; -} - -static WEBP_INLINE int VP8LColorCacheContains(const VP8LColorCache* const cc, - uint32_t argb) { - const uint32_t key = (kHashMul * argb) >> cc->hash_shift_; - return (cc->colors_[key] == argb); -} - -//------------------------------------------------------------------------------ - -// Initializes the color cache with 'hash_bits' bits for the keys. -// Returns false in case of memory error. -int VP8LColorCacheInit(VP8LColorCache* const color_cache, int hash_bits); - -void VP8LColorCacheCopy(const VP8LColorCache* const src, - VP8LColorCache* const dst); - -// Delete the memory associated to color cache. -void VP8LColorCacheClear(VP8LColorCache* const color_cache); - -//------------------------------------------------------------------------------ - -#ifdef __cplusplus -} -#endif - -#endif // WEBP_UTILS_COLOR_CACHE_H_ diff --git a/drivers/webp/utils/endian_inl.h b/drivers/webp/utils/endian_inl.h deleted file mode 100644 index e11260ff7d..0000000000 --- a/drivers/webp/utils/endian_inl.h +++ /dev/null @@ -1,100 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Endian related functions. - -#ifndef WEBP_UTILS_ENDIAN_INL_H_ -#define WEBP_UTILS_ENDIAN_INL_H_ - -#ifdef HAVE_CONFIG_H -#include "../webp/config.h" -#endif - -#include "../dsp/dsp.h" -#include "../webp/types.h" - -// some endian fix (e.g.: mips-gcc doesn't define __BIG_ENDIAN__) -#if !defined(WORDS_BIGENDIAN) && \ - (defined(__BIG_ENDIAN__) || defined(_M_PPC) || \ - (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__))) -#define WORDS_BIGENDIAN -#endif - -#if defined(WORDS_BIGENDIAN) -#define HToLE32 BSwap32 -#define HToLE16 BSwap16 -#else -#define HToLE32(x) (x) -#define HToLE16(x) (x) -#endif - -#if !defined(HAVE_CONFIG_H) -#if LOCAL_GCC_PREREQ(4,8) || __has_builtin(__builtin_bswap16) -#define HAVE_BUILTIN_BSWAP16 -#endif -#if LOCAL_GCC_PREREQ(4,3) || __has_builtin(__builtin_bswap32) -#define HAVE_BUILTIN_BSWAP32 -#endif -#if LOCAL_GCC_PREREQ(4,3) || __has_builtin(__builtin_bswap64) -#define HAVE_BUILTIN_BSWAP64 -#endif -#endif // !HAVE_CONFIG_H - -static WEBP_INLINE uint16_t BSwap16(uint16_t x) { -#if defined(HAVE_BUILTIN_BSWAP16) - return __builtin_bswap16(x); -#elif defined(_MSC_VER) - return _byteswap_ushort(x); -#else - // gcc will recognize a 'rorw $8, ...' here: - return (x >> 8) | ((x & 0xff) << 8); -#endif // HAVE_BUILTIN_BSWAP16 -} - -static WEBP_INLINE uint32_t BSwap32(uint32_t x) { -#if defined(WEBP_USE_MIPS32_R2) - uint32_t ret; - __asm__ volatile ( - "wsbh %[ret], %[x] \n\t" - "rotr %[ret], %[ret], 16 \n\t" - : [ret]"=r"(ret) - : [x]"r"(x) - ); - return ret; -#elif defined(HAVE_BUILTIN_BSWAP32) - return __builtin_bswap32(x); -#elif defined(__i386__) || defined(__x86_64__) - uint32_t swapped_bytes; - __asm__ volatile("bswap %0" : "=r"(swapped_bytes) : "0"(x)); - return swapped_bytes; -#elif defined(_MSC_VER) - return (uint32_t)_byteswap_ulong(x); -#else - return (x >> 24) | ((x >> 8) & 0xff00) | ((x << 8) & 0xff0000) | (x << 24); -#endif // HAVE_BUILTIN_BSWAP32 -} - -static WEBP_INLINE uint64_t BSwap64(uint64_t x) { -#if defined(HAVE_BUILTIN_BSWAP64) - return __builtin_bswap64(x); -#elif defined(__x86_64__) - uint64_t swapped_bytes; - __asm__ volatile("bswapq %0" : "=r"(swapped_bytes) : "0"(x)); - return swapped_bytes; -#elif defined(_MSC_VER) - return (uint64_t)_byteswap_uint64(x); -#else // generic code for swapping 64-bit values (suggested by bdb@) - x = ((x & 0xffffffff00000000ull) >> 32) | ((x & 0x00000000ffffffffull) << 32); - x = ((x & 0xffff0000ffff0000ull) >> 16) | ((x & 0x0000ffff0000ffffull) << 16); - x = ((x & 0xff00ff00ff00ff00ull) >> 8) | ((x & 0x00ff00ff00ff00ffull) << 8); - return x; -#endif // HAVE_BUILTIN_BSWAP64 -} - -#endif // WEBP_UTILS_ENDIAN_INL_H_ diff --git a/drivers/webp/utils/filters.c b/drivers/webp/utils/filters.c deleted file mode 100644 index 15543b1271..0000000000 --- a/drivers/webp/utils/filters.c +++ /dev/null @@ -1,76 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// filter estimation -// -// Author: Urvang (urvang@google.com) - -#include "./filters.h" -#include <stdlib.h> -#include <string.h> - -// ----------------------------------------------------------------------------- -// Quick estimate of a potentially interesting filter mode to try. - -#define SMAX 16 -#define SDIFF(a, b) (abs((a) - (b)) >> 4) // Scoring diff, in [0..SMAX) - -static WEBP_INLINE int GradientPredictor(uint8_t a, uint8_t b, uint8_t c) { - const int g = a + b - c; - return ((g & ~0xff) == 0) ? g : (g < 0) ? 0 : 255; // clip to 8bit -} - -WEBP_FILTER_TYPE WebPEstimateBestFilter(const uint8_t* data, - int width, int height, int stride) { - int i, j; - int bins[WEBP_FILTER_LAST][SMAX]; - memset(bins, 0, sizeof(bins)); - - // We only sample every other pixels. That's enough. - for (j = 2; j < height - 1; j += 2) { - const uint8_t* const p = data + j * stride; - int mean = p[0]; - for (i = 2; i < width - 1; i += 2) { - const int diff0 = SDIFF(p[i], mean); - const int diff1 = SDIFF(p[i], p[i - 1]); - const int diff2 = SDIFF(p[i], p[i - width]); - const int grad_pred = - GradientPredictor(p[i - 1], p[i - width], p[i - width - 1]); - const int diff3 = SDIFF(p[i], grad_pred); - bins[WEBP_FILTER_NONE][diff0] = 1; - bins[WEBP_FILTER_HORIZONTAL][diff1] = 1; - bins[WEBP_FILTER_VERTICAL][diff2] = 1; - bins[WEBP_FILTER_GRADIENT][diff3] = 1; - mean = (3 * mean + p[i] + 2) >> 2; - } - } - { - int filter; - WEBP_FILTER_TYPE best_filter = WEBP_FILTER_NONE; - int best_score = 0x7fffffff; - for (filter = WEBP_FILTER_NONE; filter < WEBP_FILTER_LAST; ++filter) { - int score = 0; - for (i = 0; i < SMAX; ++i) { - if (bins[filter][i] > 0) { - score += i; - } - } - if (score < best_score) { - best_score = score; - best_filter = (WEBP_FILTER_TYPE)filter; - } - } - return best_filter; - } -} - -#undef SMAX -#undef SDIFF - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/utils/filters.h b/drivers/webp/utils/filters.h deleted file mode 100644 index 4aba3fd3b7..0000000000 --- a/drivers/webp/utils/filters.h +++ /dev/null @@ -1,32 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Spatial prediction using various filters -// -// Author: Urvang (urvang@google.com) - -#ifndef WEBP_UTILS_FILTERS_H_ -#define WEBP_UTILS_FILTERS_H_ - -#include "webp/types.h" -#include "../dsp/dsp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -// Fast estimate of a potentially good filter. -WEBP_FILTER_TYPE WebPEstimateBestFilter(const uint8_t* data, - int width, int height, int stride); - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_UTILS_FILTERS_H_ */ diff --git a/drivers/webp/utils/huffman.c b/drivers/webp/utils/huffman.c deleted file mode 100644 index 7c9d83db9a..0000000000 --- a/drivers/webp/utils/huffman.c +++ /dev/null @@ -1,205 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Utilities for building and looking up Huffman trees. -// -// Author: Urvang Joshi (urvang@google.com) - -#include <assert.h> -#include <stdlib.h> -#include <string.h> -#include "./huffman.h" -#include "webp/format_constants.h" -#include "./utils.h" - -// Huffman data read via DecodeImageStream is represented in two (red and green) -// bytes. -#define MAX_HTREE_GROUPS 0x10000 - -HTreeGroup* VP8LHtreeGroupsNew(int num_htree_groups) { - HTreeGroup* const htree_groups = - (HTreeGroup*)WebPSafeMalloc(num_htree_groups, sizeof(*htree_groups)); - if (htree_groups == NULL) { - return NULL; - } - assert(num_htree_groups <= MAX_HTREE_GROUPS); - return htree_groups; -} - -void VP8LHtreeGroupsFree(HTreeGroup* const htree_groups) { - if (htree_groups != NULL) { - WebPSafeFree(htree_groups); - } -} - -// Returns reverse(reverse(key, len) + 1, len), where reverse(key, len) is the -// bit-wise reversal of the len least significant bits of key. -static WEBP_INLINE uint32_t GetNextKey(uint32_t key, int len) { - uint32_t step = 1 << (len - 1); - while (key & step) { - step >>= 1; - } - return (key & (step - 1)) + step; -} - -// Stores code in table[0], table[step], table[2*step], ..., table[end]. -// Assumes that end is an integer multiple of step. -static WEBP_INLINE void ReplicateValue(HuffmanCode* table, - int step, int end, - HuffmanCode code) { - assert(end % step == 0); - do { - end -= step; - table[end] = code; - } while (end > 0); -} - -// Returns the table width of the next 2nd level table. count is the histogram -// of bit lengths for the remaining symbols, len is the code length of the next -// processed symbol -static WEBP_INLINE int NextTableBitSize(const int* const count, - int len, int root_bits) { - int left = 1 << (len - root_bits); - while (len < MAX_ALLOWED_CODE_LENGTH) { - left -= count[len]; - if (left <= 0) break; - ++len; - left <<= 1; - } - return len - root_bits; -} - -int VP8LBuildHuffmanTable(HuffmanCode* const root_table, int root_bits, - const int code_lengths[], int code_lengths_size) { - HuffmanCode* table = root_table; // next available space in table - int total_size = 1 << root_bits; // total size root table + 2nd level table - int* sorted = NULL; // symbols sorted by code length - int len; // current code length - int symbol; // symbol index in original or sorted table - // number of codes of each length: - int count[MAX_ALLOWED_CODE_LENGTH + 1] = { 0 }; - // offsets in sorted table for each length: - int offset[MAX_ALLOWED_CODE_LENGTH + 1]; - - assert(code_lengths_size != 0); - assert(code_lengths != NULL); - assert(root_table != NULL); - assert(root_bits > 0); - - // Build histogram of code lengths. - for (symbol = 0; symbol < code_lengths_size; ++symbol) { - if (code_lengths[symbol] > MAX_ALLOWED_CODE_LENGTH) { - return 0; - } - ++count[code_lengths[symbol]]; - } - - // Error, all code lengths are zeros. - if (count[0] == code_lengths_size) { - return 0; - } - - // Generate offsets into sorted symbol table by code length. - offset[1] = 0; - for (len = 1; len < MAX_ALLOWED_CODE_LENGTH; ++len) { - if (count[len] > (1 << len)) { - return 0; - } - offset[len + 1] = offset[len] + count[len]; - } - - sorted = (int*)WebPSafeMalloc(code_lengths_size, sizeof(*sorted)); - if (sorted == NULL) { - return 0; - } - - // Sort symbols by length, by symbol order within each length. - for (symbol = 0; symbol < code_lengths_size; ++symbol) { - const int symbol_code_length = code_lengths[symbol]; - if (code_lengths[symbol] > 0) { - sorted[offset[symbol_code_length]++] = symbol; - } - } - - // Special case code with only one value. - if (offset[MAX_ALLOWED_CODE_LENGTH] == 1) { - HuffmanCode code; - code.bits = 0; - code.value = (uint16_t)sorted[0]; - ReplicateValue(table, 1, total_size, code); - WebPSafeFree(sorted); - return total_size; - } - - { - int step; // step size to replicate values in current table - uint32_t low = -1; // low bits for current root entry - uint32_t mask = total_size - 1; // mask for low bits - uint32_t key = 0; // reversed prefix code - int num_nodes = 1; // number of Huffman tree nodes - int num_open = 1; // number of open branches in current tree level - int table_bits = root_bits; // key length of current table - int table_size = 1 << table_bits; // size of current table - symbol = 0; - // Fill in root table. - for (len = 1, step = 2; len <= root_bits; ++len, step <<= 1) { - num_open <<= 1; - num_nodes += num_open; - num_open -= count[len]; - if (num_open < 0) { - WebPSafeFree(sorted); - return 0; - } - for (; count[len] > 0; --count[len]) { - HuffmanCode code; - code.bits = (uint8_t)len; - code.value = (uint16_t)sorted[symbol++]; - ReplicateValue(&table[key], step, table_size, code); - key = GetNextKey(key, len); - } - } - - // Fill in 2nd level tables and add pointers to root table. - for (len = root_bits + 1, step = 2; len <= MAX_ALLOWED_CODE_LENGTH; - ++len, step <<= 1) { - num_open <<= 1; - num_nodes += num_open; - num_open -= count[len]; - if (num_open < 0) { - WebPSafeFree(sorted); - return 0; - } - for (; count[len] > 0; --count[len]) { - HuffmanCode code; - if ((key & mask) != low) { - table += table_size; - table_bits = NextTableBitSize(count, len, root_bits); - table_size = 1 << table_bits; - total_size += table_size; - low = key & mask; - root_table[low].bits = (uint8_t)(table_bits + root_bits); - root_table[low].value = (uint16_t)((table - root_table) - low); - } - code.bits = (uint8_t)(len - root_bits); - code.value = (uint16_t)sorted[symbol++]; - ReplicateValue(&table[key >> root_bits], step, table_size, code); - key = GetNextKey(key, len); - } - } - - // Check if tree is full. - if (num_nodes != 2 * offset[MAX_ALLOWED_CODE_LENGTH] - 1) { - WebPSafeFree(sorted); - return 0; - } - } - - WebPSafeFree(sorted); - return total_size; -} diff --git a/drivers/webp/utils/huffman.h b/drivers/webp/utils/huffman.h deleted file mode 100644 index a8cc0da1c3..0000000000 --- a/drivers/webp/utils/huffman.h +++ /dev/null @@ -1,88 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Utilities for building and looking up Huffman trees. -// -// Author: Urvang Joshi (urvang@google.com) - -#ifndef WEBP_UTILS_HUFFMAN_H_ -#define WEBP_UTILS_HUFFMAN_H_ - -#include <assert.h> -#include "webp/format_constants.h" -#include "webp/types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define HUFFMAN_TABLE_BITS 8 -#define HUFFMAN_TABLE_MASK ((1 << HUFFMAN_TABLE_BITS) - 1) - -#define LENGTHS_TABLE_BITS 7 -#define LENGTHS_TABLE_MASK ((1 << LENGTHS_TABLE_BITS) - 1) - - -// Huffman lookup table entry -typedef struct { - uint8_t bits; // number of bits used for this symbol - uint16_t value; // symbol value or table offset -} HuffmanCode; - -// long version for holding 32b values -typedef struct { - int bits; // number of bits used for this symbol, - // or an impossible value if not a literal code. - uint32_t value; // 32b packed ARGB value if literal, - // or non-literal symbol otherwise -} HuffmanCode32; - -#define HUFFMAN_PACKED_BITS 6 -#define HUFFMAN_PACKED_TABLE_SIZE (1u << HUFFMAN_PACKED_BITS) - -// Huffman table group. -// Includes special handling for the following cases: -// - is_trivial_literal: one common literal base for RED/BLUE/ALPHA (not GREEN) -// - is_trivial_code: only 1 code (no bit is read from bitstream) -// - use_packed_table: few enough literal symbols, so all the bit codes -// can fit into a small look-up table packed_table[] -// The common literal base, if applicable, is stored in 'literal_arb'. -typedef struct HTreeGroup HTreeGroup; -struct HTreeGroup { - HuffmanCode* htrees[HUFFMAN_CODES_PER_META_CODE]; - int is_trivial_literal; // True, if huffman trees for Red, Blue & Alpha - // Symbols are trivial (have a single code). - uint32_t literal_arb; // If is_trivial_literal is true, this is the - // ARGB value of the pixel, with Green channel - // being set to zero. - int is_trivial_code; // true if is_trivial_literal with only one code - int use_packed_table; // use packed table below for short literal code - // table mapping input bits to a packed values, or escape case to literal code - HuffmanCode32 packed_table[HUFFMAN_PACKED_TABLE_SIZE]; -}; - -// Creates the instance of HTreeGroup with specified number of tree-groups. -HTreeGroup* VP8LHtreeGroupsNew(int num_htree_groups); - -// Releases the memory allocated for HTreeGroup. -void VP8LHtreeGroupsFree(HTreeGroup* const htree_groups); - -// Builds Huffman lookup table assuming code lengths are in symbol order. -// The 'code_lengths' is pre-allocated temporary memory buffer used for creating -// the huffman table. -// Returns built table size or 0 in case of error (invalid tree or -// memory error). -int VP8LBuildHuffmanTable(HuffmanCode* const root_table, int root_bits, - const int code_lengths[], int code_lengths_size); - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif // WEBP_UTILS_HUFFMAN_H_ diff --git a/drivers/webp/utils/huffman_encode.c b/drivers/webp/utils/huffman_encode.c deleted file mode 100644 index 0be414a8f8..0000000000 --- a/drivers/webp/utils/huffman_encode.c +++ /dev/null @@ -1,417 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Author: Jyrki Alakuijala (jyrki@google.com) -// -// Entropy encoding (Huffman) for webp lossless. - -#include <assert.h> -#include <stdlib.h> -#include <string.h> -#include "./huffman_encode.h" -#include "webp/format_constants.h" -#include "./utils.h" - -// ----------------------------------------------------------------------------- -// Util function to optimize the symbol map for RLE coding - -// Heuristics for selecting the stride ranges to collapse. -static int ValuesShouldBeCollapsedToStrideAverage(int a, int b) { - return abs(a - b) < 4; -} - -// Change the population counts in a way that the consequent -// Huffman tree compression, especially its RLE-part, give smaller output. -static void OptimizeHuffmanForRle(int length, uint8_t* const good_for_rle, - uint32_t* const counts) { - // 1) Let's make the Huffman code more compatible with rle encoding. - int i; - for (; length >= 0; --length) { - if (length == 0) { - return; // All zeros. - } - if (counts[length - 1] != 0) { - // Now counts[0..length - 1] does not have trailing zeros. - break; - } - } - // 2) Let's mark all population counts that already can be encoded - // with an rle code. - { - // Let's not spoil any of the existing good rle codes. - // Mark any seq of 0's that is longer as 5 as a good_for_rle. - // Mark any seq of non-0's that is longer as 7 as a good_for_rle. - uint32_t symbol = counts[0]; - int stride = 0; - for (i = 0; i < length + 1; ++i) { - if (i == length || counts[i] != symbol) { - if ((symbol == 0 && stride >= 5) || - (symbol != 0 && stride >= 7)) { - int k; - for (k = 0; k < stride; ++k) { - good_for_rle[i - k - 1] = 1; - } - } - stride = 1; - if (i != length) { - symbol = counts[i]; - } - } else { - ++stride; - } - } - } - // 3) Let's replace those population counts that lead to more rle codes. - { - uint32_t stride = 0; - uint32_t limit = counts[0]; - uint32_t sum = 0; - for (i = 0; i < length + 1; ++i) { - if (i == length || good_for_rle[i] || - (i != 0 && good_for_rle[i - 1]) || - !ValuesShouldBeCollapsedToStrideAverage(counts[i], limit)) { - if (stride >= 4 || (stride >= 3 && sum == 0)) { - uint32_t k; - // The stride must end, collapse what we have, if we have enough (4). - uint32_t count = (sum + stride / 2) / stride; - if (count < 1) { - count = 1; - } - if (sum == 0) { - // Don't make an all zeros stride to be upgraded to ones. - count = 0; - } - for (k = 0; k < stride; ++k) { - // We don't want to change value at counts[i], - // that is already belonging to the next stride. Thus - 1. - counts[i - k - 1] = count; - } - } - stride = 0; - sum = 0; - if (i < length - 3) { - // All interesting strides have a count of at least 4, - // at least when non-zeros. - limit = (counts[i] + counts[i + 1] + - counts[i + 2] + counts[i + 3] + 2) / 4; - } else if (i < length) { - limit = counts[i]; - } else { - limit = 0; - } - } - ++stride; - if (i != length) { - sum += counts[i]; - if (stride >= 4) { - limit = (sum + stride / 2) / stride; - } - } - } - } -} - -// A comparer function for two Huffman trees: sorts first by 'total count' -// (more comes first), and then by 'value' (more comes first). -static int CompareHuffmanTrees(const void* ptr1, const void* ptr2) { - const HuffmanTree* const t1 = (const HuffmanTree*)ptr1; - const HuffmanTree* const t2 = (const HuffmanTree*)ptr2; - if (t1->total_count_ > t2->total_count_) { - return -1; - } else if (t1->total_count_ < t2->total_count_) { - return 1; - } else { - assert(t1->value_ != t2->value_); - return (t1->value_ < t2->value_) ? -1 : 1; - } -} - -static void SetBitDepths(const HuffmanTree* const tree, - const HuffmanTree* const pool, - uint8_t* const bit_depths, int level) { - if (tree->pool_index_left_ >= 0) { - SetBitDepths(&pool[tree->pool_index_left_], pool, bit_depths, level + 1); - SetBitDepths(&pool[tree->pool_index_right_], pool, bit_depths, level + 1); - } else { - bit_depths[tree->value_] = level; - } -} - -// Create an optimal Huffman tree. -// -// (data,length): population counts. -// tree_limit: maximum bit depth (inclusive) of the codes. -// bit_depths[]: how many bits are used for the symbol. -// -// Returns 0 when an error has occurred. -// -// The catch here is that the tree cannot be arbitrarily deep -// -// count_limit is the value that is to be faked as the minimum value -// and this minimum value is raised until the tree matches the -// maximum length requirement. -// -// This algorithm is not of excellent performance for very long data blocks, -// especially when population counts are longer than 2**tree_limit, but -// we are not planning to use this with extremely long blocks. -// -// See http://en.wikipedia.org/wiki/Huffman_coding -static void GenerateOptimalTree(const uint32_t* const histogram, - int histogram_size, - HuffmanTree* tree, int tree_depth_limit, - uint8_t* const bit_depths) { - uint32_t count_min; - HuffmanTree* tree_pool; - int tree_size_orig = 0; - int i; - - for (i = 0; i < histogram_size; ++i) { - if (histogram[i] != 0) { - ++tree_size_orig; - } - } - - if (tree_size_orig == 0) { // pretty optimal already! - return; - } - - tree_pool = tree + tree_size_orig; - - // For block sizes with less than 64k symbols we never need to do a - // second iteration of this loop. - // If we actually start running inside this loop a lot, we would perhaps - // be better off with the Katajainen algorithm. - assert(tree_size_orig <= (1 << (tree_depth_limit - 1))); - for (count_min = 1; ; count_min *= 2) { - int tree_size = tree_size_orig; - // We need to pack the Huffman tree in tree_depth_limit bits. - // So, we try by faking histogram entries to be at least 'count_min'. - int idx = 0; - int j; - for (j = 0; j < histogram_size; ++j) { - if (histogram[j] != 0) { - const uint32_t count = - (histogram[j] < count_min) ? count_min : histogram[j]; - tree[idx].total_count_ = count; - tree[idx].value_ = j; - tree[idx].pool_index_left_ = -1; - tree[idx].pool_index_right_ = -1; - ++idx; - } - } - - // Build the Huffman tree. - qsort(tree, tree_size, sizeof(*tree), CompareHuffmanTrees); - - if (tree_size > 1) { // Normal case. - int tree_pool_size = 0; - while (tree_size > 1) { // Finish when we have only one root. - uint32_t count; - tree_pool[tree_pool_size++] = tree[tree_size - 1]; - tree_pool[tree_pool_size++] = tree[tree_size - 2]; - count = tree_pool[tree_pool_size - 1].total_count_ + - tree_pool[tree_pool_size - 2].total_count_; - tree_size -= 2; - { - // Search for the insertion point. - int k; - for (k = 0; k < tree_size; ++k) { - if (tree[k].total_count_ <= count) { - break; - } - } - memmove(tree + (k + 1), tree + k, (tree_size - k) * sizeof(*tree)); - tree[k].total_count_ = count; - tree[k].value_ = -1; - - tree[k].pool_index_left_ = tree_pool_size - 1; - tree[k].pool_index_right_ = tree_pool_size - 2; - tree_size = tree_size + 1; - } - } - SetBitDepths(&tree[0], tree_pool, bit_depths, 0); - } else if (tree_size == 1) { // Trivial case: only one element. - bit_depths[tree[0].value_] = 1; - } - - { - // Test if this Huffman tree satisfies our 'tree_depth_limit' criteria. - int max_depth = bit_depths[0]; - for (j = 1; j < histogram_size; ++j) { - if (max_depth < bit_depths[j]) { - max_depth = bit_depths[j]; - } - } - if (max_depth <= tree_depth_limit) { - break; - } - } - } -} - -// ----------------------------------------------------------------------------- -// Coding of the Huffman tree values - -static HuffmanTreeToken* CodeRepeatedValues(int repetitions, - HuffmanTreeToken* tokens, - int value, int prev_value) { - assert(value <= MAX_ALLOWED_CODE_LENGTH); - if (value != prev_value) { - tokens->code = value; - tokens->extra_bits = 0; - ++tokens; - --repetitions; - } - while (repetitions >= 1) { - if (repetitions < 3) { - int i; - for (i = 0; i < repetitions; ++i) { - tokens->code = value; - tokens->extra_bits = 0; - ++tokens; - } - break; - } else if (repetitions < 7) { - tokens->code = 16; - tokens->extra_bits = repetitions - 3; - ++tokens; - break; - } else { - tokens->code = 16; - tokens->extra_bits = 3; - ++tokens; - repetitions -= 6; - } - } - return tokens; -} - -static HuffmanTreeToken* CodeRepeatedZeros(int repetitions, - HuffmanTreeToken* tokens) { - while (repetitions >= 1) { - if (repetitions < 3) { - int i; - for (i = 0; i < repetitions; ++i) { - tokens->code = 0; // 0-value - tokens->extra_bits = 0; - ++tokens; - } - break; - } else if (repetitions < 11) { - tokens->code = 17; - tokens->extra_bits = repetitions - 3; - ++tokens; - break; - } else if (repetitions < 139) { - tokens->code = 18; - tokens->extra_bits = repetitions - 11; - ++tokens; - break; - } else { - tokens->code = 18; - tokens->extra_bits = 0x7f; // 138 repeated 0s - ++tokens; - repetitions -= 138; - } - } - return tokens; -} - -int VP8LCreateCompressedHuffmanTree(const HuffmanTreeCode* const tree, - HuffmanTreeToken* tokens, int max_tokens) { - HuffmanTreeToken* const starting_token = tokens; - HuffmanTreeToken* const ending_token = tokens + max_tokens; - const int depth_size = tree->num_symbols; - int prev_value = 8; // 8 is the initial value for rle. - int i = 0; - assert(tokens != NULL); - while (i < depth_size) { - const int value = tree->code_lengths[i]; - int k = i + 1; - int runs; - while (k < depth_size && tree->code_lengths[k] == value) ++k; - runs = k - i; - if (value == 0) { - tokens = CodeRepeatedZeros(runs, tokens); - } else { - tokens = CodeRepeatedValues(runs, tokens, value, prev_value); - prev_value = value; - } - i += runs; - assert(tokens <= ending_token); - } - (void)ending_token; // suppress 'unused variable' warning - return (int)(tokens - starting_token); -} - -// ----------------------------------------------------------------------------- - -// Pre-reversed 4-bit values. -static const uint8_t kReversedBits[16] = { - 0x0, 0x8, 0x4, 0xc, 0x2, 0xa, 0x6, 0xe, - 0x1, 0x9, 0x5, 0xd, 0x3, 0xb, 0x7, 0xf -}; - -static uint32_t ReverseBits(int num_bits, uint32_t bits) { - uint32_t retval = 0; - int i = 0; - while (i < num_bits) { - i += 4; - retval |= kReversedBits[bits & 0xf] << (MAX_ALLOWED_CODE_LENGTH + 1 - i); - bits >>= 4; - } - retval >>= (MAX_ALLOWED_CODE_LENGTH + 1 - num_bits); - return retval; -} - -// Get the actual bit values for a tree of bit depths. -static void ConvertBitDepthsToSymbols(HuffmanTreeCode* const tree) { - // 0 bit-depth means that the symbol does not exist. - int i; - int len; - uint32_t next_code[MAX_ALLOWED_CODE_LENGTH + 1]; - int depth_count[MAX_ALLOWED_CODE_LENGTH + 1] = { 0 }; - - assert(tree != NULL); - len = tree->num_symbols; - for (i = 0; i < len; ++i) { - const int code_length = tree->code_lengths[i]; - assert(code_length <= MAX_ALLOWED_CODE_LENGTH); - ++depth_count[code_length]; - } - depth_count[0] = 0; // ignore unused symbol - next_code[0] = 0; - { - uint32_t code = 0; - for (i = 1; i <= MAX_ALLOWED_CODE_LENGTH; ++i) { - code = (code + depth_count[i - 1]) << 1; - next_code[i] = code; - } - } - for (i = 0; i < len; ++i) { - const int code_length = tree->code_lengths[i]; - tree->codes[i] = ReverseBits(code_length, next_code[code_length]++); - } -} - -// ----------------------------------------------------------------------------- -// Main entry point - -void VP8LCreateHuffmanTree(uint32_t* const histogram, int tree_depth_limit, - uint8_t* const buf_rle, - HuffmanTree* const huff_tree, - HuffmanTreeCode* const huff_code) { - const int num_symbols = huff_code->num_symbols; - memset(buf_rle, 0, num_symbols * sizeof(*buf_rle)); - OptimizeHuffmanForRle(num_symbols, buf_rle, histogram); - GenerateOptimalTree(histogram, num_symbols, huff_tree, tree_depth_limit, - huff_code->code_lengths); - // Create the actual bit codes for the bit lengths. - ConvertBitDepthsToSymbols(huff_code); -} diff --git a/drivers/webp/utils/huffman_encode.h b/drivers/webp/utils/huffman_encode.h deleted file mode 100644 index 93610066f3..0000000000 --- a/drivers/webp/utils/huffman_encode.h +++ /dev/null @@ -1,60 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Author: Jyrki Alakuijala (jyrki@google.com) -// -// Entropy encoding (Huffman) for webp lossless - -#ifndef WEBP_UTILS_HUFFMAN_ENCODE_H_ -#define WEBP_UTILS_HUFFMAN_ENCODE_H_ - -#include "webp/types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -// Struct for holding the tree header in coded form. -typedef struct { - uint8_t code; // value (0..15) or escape code (16,17,18) - uint8_t extra_bits; // extra bits for escape codes -} HuffmanTreeToken; - -// Struct to represent the tree codes (depth and bits array). -typedef struct { - int num_symbols; // Number of symbols. - uint8_t* code_lengths; // Code lengths of the symbols. - uint16_t* codes; // Symbol Codes. -} HuffmanTreeCode; - -// Struct to represent the Huffman tree. -typedef struct { - uint32_t total_count_; // Symbol frequency. - int value_; // Symbol value. - int pool_index_left_; // Index for the left sub-tree. - int pool_index_right_; // Index for the right sub-tree. -} HuffmanTree; - -// Turn the Huffman tree into a token sequence. -// Returns the number of tokens used. -int VP8LCreateCompressedHuffmanTree(const HuffmanTreeCode* const tree, - HuffmanTreeToken* tokens, int max_tokens); - -// Create an optimized tree, and tokenize it. -// 'buf_rle' and 'huff_tree' are pre-allocated and the 'tree' is the constructed -// huffman code tree. -void VP8LCreateHuffmanTree(uint32_t* const histogram, int tree_depth_limit, - uint8_t* const buf_rle, HuffmanTree* const huff_tree, - HuffmanTreeCode* const tree); - -#ifdef __cplusplus -} -#endif - -#endif // WEBP_UTILS_HUFFMAN_ENCODE_H_ diff --git a/drivers/webp/utils/quant_levels.c b/drivers/webp/utils/quant_levels.c deleted file mode 100644 index d7c8aab922..0000000000 --- a/drivers/webp/utils/quant_levels.c +++ /dev/null @@ -1,140 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Quantize levels for specified number of quantization-levels ([2, 256]). -// Min and max values are preserved (usual 0 and 255 for alpha plane). -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> - -#include "./quant_levels.h" - -#define NUM_SYMBOLS 256 - -#define MAX_ITER 6 // Maximum number of convergence steps. -#define ERROR_THRESHOLD 1e-4 // MSE stopping criterion. - -// ----------------------------------------------------------------------------- -// Quantize levels. - -int QuantizeLevels(uint8_t* const data, int width, int height, - int num_levels, uint64_t* const sse) { - int freq[NUM_SYMBOLS] = { 0 }; - int q_level[NUM_SYMBOLS] = { 0 }; - double inv_q_level[NUM_SYMBOLS] = { 0 }; - int min_s = 255, max_s = 0; - const size_t data_size = height * width; - int i, num_levels_in, iter; - double last_err = 1.e38, err = 0.; - const double err_threshold = ERROR_THRESHOLD * data_size; - - if (data == NULL) { - return 0; - } - - if (width <= 0 || height <= 0) { - return 0; - } - - if (num_levels < 2 || num_levels > 256) { - return 0; - } - - { - size_t n; - num_levels_in = 0; - for (n = 0; n < data_size; ++n) { - num_levels_in += (freq[data[n]] == 0); - if (min_s > data[n]) min_s = data[n]; - if (max_s < data[n]) max_s = data[n]; - ++freq[data[n]]; - } - } - - if (num_levels_in <= num_levels) goto End; // nothing to do! - - // Start with uniformly spread centroids. - for (i = 0; i < num_levels; ++i) { - inv_q_level[i] = min_s + (double)(max_s - min_s) * i / (num_levels - 1); - } - - // Fixed values. Won't be changed. - q_level[min_s] = 0; - q_level[max_s] = num_levels - 1; - assert(inv_q_level[0] == min_s); - assert(inv_q_level[num_levels - 1] == max_s); - - // k-Means iterations. - for (iter = 0; iter < MAX_ITER; ++iter) { - double q_sum[NUM_SYMBOLS] = { 0 }; - double q_count[NUM_SYMBOLS] = { 0 }; - int s, slot = 0; - - // Assign classes to representatives. - for (s = min_s; s <= max_s; ++s) { - // Keep track of the nearest neighbour 'slot' - while (slot < num_levels - 1 && - 2 * s > inv_q_level[slot] + inv_q_level[slot + 1]) { - ++slot; - } - if (freq[s] > 0) { - q_sum[slot] += s * freq[s]; - q_count[slot] += freq[s]; - } - q_level[s] = slot; - } - - // Assign new representatives to classes. - if (num_levels > 2) { - for (slot = 1; slot < num_levels - 1; ++slot) { - const double count = q_count[slot]; - if (count > 0.) { - inv_q_level[slot] = q_sum[slot] / count; - } - } - } - - // Compute convergence error. - err = 0.; - for (s = min_s; s <= max_s; ++s) { - const double error = s - inv_q_level[q_level[s]]; - err += freq[s] * error * error; - } - - // Check for convergence: we stop as soon as the error is no - // longer improving. - if (last_err - err < err_threshold) break; - last_err = err; - } - - // Remap the alpha plane to quantized values. - { - // double->int rounding operation can be costly, so we do it - // once for all before remapping. We also perform the data[] -> slot - // mapping, while at it (avoid one indirection in the final loop). - uint8_t map[NUM_SYMBOLS]; - int s; - size_t n; - for (s = min_s; s <= max_s; ++s) { - const int slot = q_level[s]; - map[s] = (uint8_t)(inv_q_level[slot] + .5); - } - // Final pass. - for (n = 0; n < data_size; ++n) { - data[n] = map[data[n]]; - } - } - End: - // Store sum of squared error if needed. - if (sse != NULL) *sse = (uint64_t)err; - - return 1; -} - diff --git a/drivers/webp/utils/quant_levels.h b/drivers/webp/utils/quant_levels.h deleted file mode 100644 index 3916b977ab..0000000000 --- a/drivers/webp/utils/quant_levels.h +++ /dev/null @@ -1,36 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Alpha plane quantization utility -// -// Author: Vikas Arora (vikasa@google.com) - -#ifndef WEBP_UTILS_QUANT_LEVELS_H_ -#define WEBP_UTILS_QUANT_LEVELS_H_ - -#include <stdlib.h> - -#include "webp/types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -// Replace the input 'data' of size 'width'x'height' with 'num-levels' -// quantized values. If not NULL, 'sse' will contain the sum of squared error. -// Valid range for 'num_levels' is [2, 256]. -// Returns false in case of error (data is NULL, or parameters are invalid). -int QuantizeLevels(uint8_t* const data, int width, int height, int num_levels, - uint64_t* const sse); - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_UTILS_QUANT_LEVELS_H_ */ diff --git a/drivers/webp/utils/quant_levels_dec.c b/drivers/webp/utils/quant_levels_dec.c deleted file mode 100644 index ee0a3fe127..0000000000 --- a/drivers/webp/utils/quant_levels_dec.c +++ /dev/null @@ -1,284 +0,0 @@ -// Copyright 2013 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Implement gradient smoothing: we replace a current alpha value by its -// surrounding average if it's close enough (that is: the change will be less -// than the minimum distance between two quantized level). -// We use sliding window for computing the 2d moving average. -// -// Author: Skal (pascal.massimino@gmail.com) - -#include "./quant_levels_dec.h" - -#include <string.h> // for memset - -#include "./utils.h" - -// #define USE_DITHERING // uncomment to enable ordered dithering (not vital) - -#define FIX 16 // fix-point precision for averaging -#define LFIX 2 // extra precision for look-up table -#define LUT_SIZE ((1 << (8 + LFIX)) - 1) // look-up table size - -#if defined(USE_DITHERING) - -#define DFIX 4 // extra precision for ordered dithering -#define DSIZE 4 // dithering size (must be a power of two) -// cf. http://en.wikipedia.org/wiki/Ordered_dithering -static const uint8_t kOrderedDither[DSIZE][DSIZE] = { - { 0, 8, 2, 10 }, // coefficients are in DFIX fixed-point precision - { 12, 4, 14, 6 }, - { 3, 11, 1, 9 }, - { 15, 7, 13, 5 } -}; - -#else -#define DFIX 0 -#endif - -typedef struct { - int width_, height_; // dimension - int stride_; // stride in bytes - int row_; // current input row being processed - uint8_t* src_; // input pointer - uint8_t* dst_; // output pointer - - int radius_; // filter radius (=delay) - int scale_; // normalization factor, in FIX bits precision - - void* mem_; // all memory - - // various scratch buffers - uint16_t* start_; - uint16_t* cur_; - uint16_t* end_; - uint16_t* top_; - uint16_t* average_; - - // input levels distribution - int num_levels_; // number of quantized levels - int min_, max_; // min and max level values - int min_level_dist_; // smallest distance between two consecutive levels - - int16_t* correction_; // size = 1 + 2*LUT_SIZE -> ~4k memory -} SmoothParams; - -//------------------------------------------------------------------------------ - -#define CLIP_MASK (int)(~0U << (8 + DFIX)) -static WEBP_INLINE uint8_t clip_8b(int v) { - return (!(v & CLIP_MASK)) ? (uint8_t)(v >> DFIX) : (v < 0) ? 0u : 255u; -} - -// vertical accumulation -static void VFilter(SmoothParams* const p) { - const uint8_t* src = p->src_; - const int w = p->width_; - uint16_t* const cur = p->cur_; - const uint16_t* const top = p->top_; - uint16_t* const out = p->end_; - uint16_t sum = 0; // all arithmetic is modulo 16bit - int x; - - for (x = 0; x < w; ++x) { - uint16_t new_value; - sum += src[x]; - new_value = top[x] + sum; - out[x] = new_value - cur[x]; // vertical sum of 'r' pixels. - cur[x] = new_value; - } - // move input pointers one row down - p->top_ = p->cur_; - p->cur_ += w; - if (p->cur_ == p->end_) p->cur_ = p->start_; // roll-over - // We replicate edges, as it's somewhat easier as a boundary condition. - // That's why we don't update the 'src' pointer on top/bottom area: - if (p->row_ >= 0 && p->row_ < p->height_ - 1) { - p->src_ += p->stride_; - } -} - -// horizontal accumulation. We use mirror replication of missing pixels, as it's -// a little easier to implement (surprisingly). -static void HFilter(SmoothParams* const p) { - const uint16_t* const in = p->end_; - uint16_t* const out = p->average_; - const uint32_t scale = p->scale_; - const int w = p->width_; - const int r = p->radius_; - - int x; - for (x = 0; x <= r; ++x) { // left mirroring - const uint16_t delta = in[x + r - 1] + in[r - x]; - out[x] = (delta * scale) >> FIX; - } - for (; x < w - r; ++x) { // bulk middle run - const uint16_t delta = in[x + r] - in[x - r - 1]; - out[x] = (delta * scale) >> FIX; - } - for (; x < w; ++x) { // right mirroring - const uint16_t delta = - 2 * in[w - 1] - in[2 * w - 2 - r - x] - in[x - r - 1]; - out[x] = (delta * scale) >> FIX; - } -} - -// emit one filtered output row -static void ApplyFilter(SmoothParams* const p) { - const uint16_t* const average = p->average_; - const int w = p->width_; - const int16_t* const correction = p->correction_; -#if defined(USE_DITHERING) - const uint8_t* const dither = kOrderedDither[p->row_ % DSIZE]; -#endif - uint8_t* const dst = p->dst_; - int x; - for (x = 0; x < w; ++x) { - const int v = dst[x]; - if (v < p->max_ && v > p->min_) { - const int c = (v << DFIX) + correction[average[x] - (v << LFIX)]; -#if defined(USE_DITHERING) - dst[x] = clip_8b(c + dither[x % DSIZE]); -#else - dst[x] = clip_8b(c); -#endif - } - } - p->dst_ += p->stride_; // advance output pointer -} - -//------------------------------------------------------------------------------ -// Initialize correction table - -static void InitCorrectionLUT(int16_t* const lut, int min_dist) { - // The correction curve is: - // f(x) = x for x <= threshold2 - // f(x) = 0 for x >= threshold1 - // and a linear interpolation for range x=[threshold2, threshold1] - // (along with f(-x) = -f(x) symmetry). - // Note that: threshold2 = 3/4 * threshold1 - const int threshold1 = min_dist << LFIX; - const int threshold2 = (3 * threshold1) >> 2; - const int max_threshold = threshold2 << DFIX; - const int delta = threshold1 - threshold2; - int i; - for (i = 1; i <= LUT_SIZE; ++i) { - int c = (i <= threshold2) ? (i << DFIX) - : (i < threshold1) ? max_threshold * (threshold1 - i) / delta - : 0; - c >>= LFIX; - lut[+i] = +c; - lut[-i] = -c; - } - lut[0] = 0; -} - -static void CountLevels(SmoothParams* const p) { - int i, j, last_level; - uint8_t used_levels[256] = { 0 }; - const uint8_t* data = p->src_; - p->min_ = 255; - p->max_ = 0; - for (j = 0; j < p->height_; ++j) { - for (i = 0; i < p->width_; ++i) { - const int v = data[i]; - if (v < p->min_) p->min_ = v; - if (v > p->max_) p->max_ = v; - used_levels[v] = 1; - } - data += p->stride_; - } - // Compute the mininum distance between two non-zero levels. - p->min_level_dist_ = p->max_ - p->min_; - last_level = -1; - for (i = 0; i < 256; ++i) { - if (used_levels[i]) { - ++p->num_levels_; - if (last_level >= 0) { - const int level_dist = i - last_level; - if (level_dist < p->min_level_dist_) { - p->min_level_dist_ = level_dist; - } - } - last_level = i; - } - } -} - -// Initialize all params. -static int InitParams(uint8_t* const data, int width, int height, int stride, - int radius, SmoothParams* const p) { - const int R = 2 * radius + 1; // total size of the kernel - - const size_t size_scratch_m = (R + 1) * width * sizeof(*p->start_); - const size_t size_m = width * sizeof(*p->average_); - const size_t size_lut = (1 + 2 * LUT_SIZE) * sizeof(*p->correction_); - const size_t total_size = size_scratch_m + size_m + size_lut; - uint8_t* mem = (uint8_t*)WebPSafeMalloc(1U, total_size); - - if (mem == NULL) return 0; - p->mem_ = (void*)mem; - - p->start_ = (uint16_t*)mem; - p->cur_ = p->start_; - p->end_ = p->start_ + R * width; - p->top_ = p->end_ - width; - memset(p->top_, 0, width * sizeof(*p->top_)); - mem += size_scratch_m; - - p->average_ = (uint16_t*)mem; - mem += size_m; - - p->width_ = width; - p->height_ = height; - p->stride_ = stride; - p->src_ = data; - p->dst_ = data; - p->radius_ = radius; - p->scale_ = (1 << (FIX + LFIX)) / (R * R); // normalization constant - p->row_ = -radius; - - // analyze the input distribution so we can best-fit the threshold - CountLevels(p); - - // correction table - p->correction_ = ((int16_t*)mem) + LUT_SIZE; - InitCorrectionLUT(p->correction_, p->min_level_dist_); - - return 1; -} - -static void CleanupParams(SmoothParams* const p) { - WebPSafeFree(p->mem_); -} - -int WebPDequantizeLevels(uint8_t* const data, int width, int height, int stride, - int strength) { - const int radius = 4 * strength / 100; - if (strength < 0 || strength > 100) return 0; - if (data == NULL || width <= 0 || height <= 0) return 0; // bad params - if (radius > 0) { - SmoothParams p; - memset(&p, 0, sizeof(p)); - if (!InitParams(data, width, height, stride, radius, &p)) return 0; - if (p.num_levels_ > 2) { - for (; p.row_ < p.height_; ++p.row_) { - VFilter(&p); // accumulate average of input - // Need to wait few rows in order to prime the filter, - // before emitting some output. - if (p.row_ >= p.radius_) { - HFilter(&p); - ApplyFilter(&p); - } - } - } - CleanupParams(&p); - } - return 1; -} diff --git a/drivers/webp/utils/quant_levels_dec.h b/drivers/webp/utils/quant_levels_dec.h deleted file mode 100644 index c99a475386..0000000000 --- a/drivers/webp/utils/quant_levels_dec.h +++ /dev/null @@ -1,35 +0,0 @@ -// Copyright 2013 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Alpha plane de-quantization utility -// -// Author: Vikas Arora (vikasa@google.com) - -#ifndef WEBP_UTILS_QUANT_LEVELS_DEC_H_ -#define WEBP_UTILS_QUANT_LEVELS_DEC_H_ - -#include "webp/types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -// Apply post-processing to input 'data' of size 'width'x'height' assuming that -// the source was quantized to a reduced number of levels. 'stride' is in bytes. -// Strength is in [0..100] and controls the amount of dithering applied. -// Returns false in case of error (data is NULL, invalid parameters, -// malloc failure, ...). -int WebPDequantizeLevels(uint8_t* const data, int width, int height, int stride, - int strength); - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_UTILS_QUANT_LEVELS_DEC_H_ */ diff --git a/drivers/webp/utils/random.c b/drivers/webp/utils/random.c deleted file mode 100644 index 24e96ad648..0000000000 --- a/drivers/webp/utils/random.c +++ /dev/null @@ -1,43 +0,0 @@ -// Copyright 2013 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Pseudo-random utilities -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <string.h> -#include "./random.h" - -//------------------------------------------------------------------------------ - -// 31b-range values -static const uint32_t kRandomTable[VP8_RANDOM_TABLE_SIZE] = { - 0x0de15230, 0x03b31886, 0x775faccb, 0x1c88626a, 0x68385c55, 0x14b3b828, - 0x4a85fef8, 0x49ddb84b, 0x64fcf397, 0x5c550289, 0x4a290000, 0x0d7ec1da, - 0x5940b7ab, 0x5492577d, 0x4e19ca72, 0x38d38c69, 0x0c01ee65, 0x32a1755f, - 0x5437f652, 0x5abb2c32, 0x0faa57b1, 0x73f533e7, 0x685feeda, 0x7563cce2, - 0x6e990e83, 0x4730a7ed, 0x4fc0d9c6, 0x496b153c, 0x4f1403fa, 0x541afb0c, - 0x73990b32, 0x26d7cb1c, 0x6fcc3706, 0x2cbb77d8, 0x75762f2a, 0x6425ccdd, - 0x24b35461, 0x0a7d8715, 0x220414a8, 0x141ebf67, 0x56b41583, 0x73e502e3, - 0x44cab16f, 0x28264d42, 0x73baaefb, 0x0a50ebed, 0x1d6ab6fb, 0x0d3ad40b, - 0x35db3b68, 0x2b081e83, 0x77ce6b95, 0x5181e5f0, 0x78853bbc, 0x009f9494, - 0x27e5ed3c -}; - -void VP8InitRandom(VP8Random* const rg, float dithering) { - memcpy(rg->tab_, kRandomTable, sizeof(rg->tab_)); - rg->index1_ = 0; - rg->index2_ = 31; - rg->amp_ = (dithering < 0.0) ? 0 - : (dithering > 1.0) ? (1 << VP8_RANDOM_DITHER_FIX) - : (uint32_t)((1 << VP8_RANDOM_DITHER_FIX) * dithering); -} - -//------------------------------------------------------------------------------ - diff --git a/drivers/webp/utils/random.h b/drivers/webp/utils/random.h deleted file mode 100644 index 745f3e2e87..0000000000 --- a/drivers/webp/utils/random.h +++ /dev/null @@ -1,63 +0,0 @@ -// Copyright 2013 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Pseudo-random utilities -// -// Author: Skal (pascal.massimino@gmail.com) - -#ifndef WEBP_UTILS_RANDOM_H_ -#define WEBP_UTILS_RANDOM_H_ - -#include <assert.h> -#include "webp/types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define VP8_RANDOM_DITHER_FIX 8 // fixed-point precision for dithering -#define VP8_RANDOM_TABLE_SIZE 55 - -typedef struct { - int index1_, index2_; - uint32_t tab_[VP8_RANDOM_TABLE_SIZE]; - int amp_; -} VP8Random; - -// Initializes random generator with an amplitude 'dithering' in range [0..1]. -void VP8InitRandom(VP8Random* const rg, float dithering); - -// Returns a centered pseudo-random number with 'num_bits' amplitude. -// (uses D.Knuth's Difference-based random generator). -// 'amp' is in VP8_RANDOM_DITHER_FIX fixed-point precision. -static WEBP_INLINE int VP8RandomBits2(VP8Random* const rg, int num_bits, - int amp) { - int diff; - assert(num_bits + VP8_RANDOM_DITHER_FIX <= 31); - diff = rg->tab_[rg->index1_] - rg->tab_[rg->index2_]; - if (diff < 0) diff += (1u << 31); - rg->tab_[rg->index1_] = diff; - if (++rg->index1_ == VP8_RANDOM_TABLE_SIZE) rg->index1_ = 0; - if (++rg->index2_ == VP8_RANDOM_TABLE_SIZE) rg->index2_ = 0; - // sign-extend, 0-center - diff = (int)((uint32_t)diff << 1) >> (32 - num_bits); - diff = (diff * amp) >> VP8_RANDOM_DITHER_FIX; // restrict range - diff += 1 << (num_bits - 1); // shift back to 0.5-center - return diff; -} - -static WEBP_INLINE int VP8RandomBits(VP8Random* const rg, int num_bits) { - return VP8RandomBits2(rg, num_bits, rg->amp_); -} - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_UTILS_RANDOM_H_ */ diff --git a/drivers/webp/utils/rescaler.c b/drivers/webp/utils/rescaler.c deleted file mode 100644 index 00c9300bfb..0000000000 --- a/drivers/webp/utils/rescaler.c +++ /dev/null @@ -1,142 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Rescaling functions -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> -#include <stdlib.h> -#include <string.h> -#include "../dsp/dsp.h" -#include "./rescaler.h" - -//------------------------------------------------------------------------------ - -void WebPRescalerInit(WebPRescaler* const wrk, int src_width, int src_height, - uint8_t* const dst, - int dst_width, int dst_height, int dst_stride, - int num_channels, rescaler_t* const work) { - const int x_add = src_width, x_sub = dst_width; - const int y_add = src_height, y_sub = dst_height; - wrk->x_expand = (src_width < dst_width); - wrk->y_expand = (src_height < dst_height); - wrk->src_width = src_width; - wrk->src_height = src_height; - wrk->dst_width = dst_width; - wrk->dst_height = dst_height; - wrk->src_y = 0; - wrk->dst_y = 0; - wrk->dst = dst; - wrk->dst_stride = dst_stride; - wrk->num_channels = num_channels; - - // for 'x_expand', we use bilinear interpolation - wrk->x_add = wrk->x_expand ? (x_sub - 1) : x_add; - wrk->x_sub = wrk->x_expand ? (x_add - 1) : x_sub; - if (!wrk->x_expand) { // fx_scale is not used otherwise - wrk->fx_scale = WEBP_RESCALER_FRAC(1, wrk->x_sub); - } - // vertical scaling parameters - wrk->y_add = wrk->y_expand ? y_add - 1 : y_add; - wrk->y_sub = wrk->y_expand ? y_sub - 1 : y_sub; - wrk->y_accum = wrk->y_expand ? wrk->y_sub : wrk->y_add; - if (!wrk->y_expand) { - // this is WEBP_RESCALER_FRAC(dst_height, x_add * y_add) without the cast. - const uint64_t ratio = - (uint64_t)dst_height * WEBP_RESCALER_ONE / (wrk->x_add * wrk->y_add); - if (ratio != (uint32_t)ratio) { - // We can't represent the ratio with the current fixed-point precision. - // => We special-case fxy_scale = 0, in WebPRescalerExportRow(). - wrk->fxy_scale = 0; - } else { - wrk->fxy_scale = (uint32_t)ratio; - } - wrk->fy_scale = WEBP_RESCALER_FRAC(1, wrk->y_sub); - } else { - wrk->fy_scale = WEBP_RESCALER_FRAC(1, wrk->x_add); - // wrk->fxy_scale is unused here. - } - wrk->irow = work; - wrk->frow = work + num_channels * dst_width; - memset(work, 0, 2 * dst_width * num_channels * sizeof(*work)); - - WebPRescalerDspInit(); -} - -int WebPRescalerGetScaledDimensions(int src_width, int src_height, - int* const scaled_width, - int* const scaled_height) { - assert(scaled_width != NULL); - assert(scaled_height != NULL); - { - int width = *scaled_width; - int height = *scaled_height; - - // if width is unspecified, scale original proportionally to height ratio. - if (width == 0) { - width = (src_width * height + src_height / 2) / src_height; - } - // if height is unspecified, scale original proportionally to width ratio. - if (height == 0) { - height = (src_height * width + src_width / 2) / src_width; - } - // Check if the overall dimensions still make sense. - if (width <= 0 || height <= 0) { - return 0; - } - - *scaled_width = width; - *scaled_height = height; - return 1; - } -} - -//------------------------------------------------------------------------------ -// all-in-one calls - -int WebPRescaleNeededLines(const WebPRescaler* const wrk, int max_num_lines) { - const int num_lines = (wrk->y_accum + wrk->y_sub - 1) / wrk->y_sub; - return (num_lines > max_num_lines) ? max_num_lines : num_lines; -} - -int WebPRescalerImport(WebPRescaler* const wrk, int num_lines, - const uint8_t* src, int src_stride) { - int total_imported = 0; - while (total_imported < num_lines && !WebPRescalerHasPendingOutput(wrk)) { - if (wrk->y_expand) { - rescaler_t* const tmp = wrk->irow; - wrk->irow = wrk->frow; - wrk->frow = tmp; - } - WebPRescalerImportRow(wrk, src); - if (!wrk->y_expand) { // Accumulate the contribution of the new row. - int x; - for (x = 0; x < wrk->num_channels * wrk->dst_width; ++x) { - wrk->irow[x] += wrk->frow[x]; - } - } - ++wrk->src_y; - src += src_stride; - ++total_imported; - wrk->y_accum -= wrk->y_sub; - } - return total_imported; -} - -int WebPRescalerExport(WebPRescaler* const rescaler) { - int total_exported = 0; - while (WebPRescalerHasPendingOutput(rescaler)) { - WebPRescalerExportRow(rescaler); - ++total_exported; - } - return total_exported; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/utils/rescaler.h b/drivers/webp/utils/rescaler.h deleted file mode 100644 index 868467b4d7..0000000000 --- a/drivers/webp/utils/rescaler.h +++ /dev/null @@ -1,101 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Rescaling functions -// -// Author: Skal (pascal.massimino@gmail.com) - -#ifndef WEBP_UTILS_RESCALER_H_ -#define WEBP_UTILS_RESCALER_H_ - -#ifdef __cplusplus -extern "C" { -#endif - -#include "webp/types.h" - -#define WEBP_RESCALER_RFIX 32 // fixed-point precision for multiplies -#define WEBP_RESCALER_ONE (1ull << WEBP_RESCALER_RFIX) -#define WEBP_RESCALER_FRAC(x, y) \ - ((uint32_t)(((uint64_t)(x) << WEBP_RESCALER_RFIX) / (y))) - -// Structure used for on-the-fly rescaling -typedef uint32_t rescaler_t; // type for side-buffer -typedef struct WebPRescaler WebPRescaler; -struct WebPRescaler { - int x_expand; // true if we're expanding in the x direction - int y_expand; // true if we're expanding in the y direction - int num_channels; // bytes to jump between pixels - uint32_t fx_scale; // fixed-point scaling factors - uint32_t fy_scale; // '' - uint32_t fxy_scale; // '' - int y_accum; // vertical accumulator - int y_add, y_sub; // vertical increments - int x_add, x_sub; // horizontal increments - int src_width, src_height; // source dimensions - int dst_width, dst_height; // destination dimensions - int src_y, dst_y; // row counters for input and output - uint8_t* dst; - int dst_stride; - rescaler_t* irow, *frow; // work buffer -}; - -// Initialize a rescaler given scratch area 'work' and dimensions of src & dst. -void WebPRescalerInit(WebPRescaler* const rescaler, - int src_width, int src_height, - uint8_t* const dst, - int dst_width, int dst_height, int dst_stride, - int num_channels, - rescaler_t* const work); - -// If either 'scaled_width' or 'scaled_height' (but not both) is 0 the value -// will be calculated preserving the aspect ratio, otherwise the values are -// left unmodified. Returns true on success, false if either value is 0 after -// performing the scaling calculation. -int WebPRescalerGetScaledDimensions(int src_width, int src_height, - int* const scaled_width, - int* const scaled_height); - -// Returns the number of input lines needed next to produce one output line, -// considering that the maximum available input lines are 'max_num_lines'. -int WebPRescaleNeededLines(const WebPRescaler* const rescaler, - int max_num_lines); - -// Import multiple rows over all channels, until at least one row is ready to -// be exported. Returns the actual number of lines that were imported. -int WebPRescalerImport(WebPRescaler* const rescaler, int num_rows, - const uint8_t* src, int src_stride); - -// Export as many rows as possible. Return the numbers of rows written. -int WebPRescalerExport(WebPRescaler* const rescaler); - -// Return true if input is finished -static WEBP_INLINE -int WebPRescalerInputDone(const WebPRescaler* const rescaler) { - return (rescaler->src_y >= rescaler->src_height); -} -// Return true if output is finished -static WEBP_INLINE -int WebPRescalerOutputDone(const WebPRescaler* const rescaler) { - return (rescaler->dst_y >= rescaler->dst_height); -} - -// Return true if there are pending output rows ready. -static WEBP_INLINE -int WebPRescalerHasPendingOutput(const WebPRescaler* const rescaler) { - return !WebPRescalerOutputDone(rescaler) && (rescaler->y_accum <= 0); -} - -//------------------------------------------------------------------------------ - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_UTILS_RESCALER_H_ */ diff --git a/drivers/webp/utils/thread.c b/drivers/webp/utils/thread.c deleted file mode 100644 index 93f7622797..0000000000 --- a/drivers/webp/utils/thread.c +++ /dev/null @@ -1,358 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Multi-threaded worker -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> -#include <string.h> // for memset() -#include "./thread.h" -#include "./utils.h" - -#ifdef WEBP_USE_THREAD - -#if defined(_WIN32) - -#include <windows.h> -typedef HANDLE pthread_t; -typedef CRITICAL_SECTION pthread_mutex_t; - -#if _WIN32_WINNT >= 0x0600 // Windows Vista / Server 2008 or greater -#define USE_WINDOWS_CONDITION_VARIABLE -typedef CONDITION_VARIABLE pthread_cond_t; -#else -typedef struct { - HANDLE waiting_sem_; - HANDLE received_sem_; - HANDLE signal_event_; -} pthread_cond_t; -#endif // _WIN32_WINNT >= 0x600 - -#ifndef WINAPI_FAMILY_PARTITION -#define WINAPI_PARTITION_DESKTOP 1 -#define WINAPI_FAMILY_PARTITION(x) x -#endif - -#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) -#define USE_CREATE_THREAD -#endif - -#else // !_WIN32 - -#include <pthread.h> - -#endif // _WIN32 - -struct WebPWorkerImpl { - pthread_mutex_t mutex_; - pthread_cond_t condition_; - pthread_t thread_; -}; - -#if defined(_WIN32) - -//------------------------------------------------------------------------------ -// simplistic pthread emulation layer - -#include <process.h> - -// _beginthreadex requires __stdcall -#define THREADFN unsigned int __stdcall -#define THREAD_RETURN(val) (unsigned int)((DWORD_PTR)val) - -#if _WIN32_WINNT >= 0x0501 // Windows XP or greater -#define WaitForSingleObject(obj, timeout) \ - WaitForSingleObjectEx(obj, timeout, FALSE /*bAlertable*/) -#endif - -static int pthread_create(pthread_t* const thread, const void* attr, - unsigned int (__stdcall *start)(void*), void* arg) { - (void)attr; -#ifdef USE_CREATE_THREAD - *thread = CreateThread(NULL, /* lpThreadAttributes */ - 0, /* dwStackSize */ - start, - arg, - 0, /* dwStackSize */ - NULL); /* lpThreadId */ -#else - *thread = (pthread_t)_beginthreadex(NULL, /* void *security */ - 0, /* unsigned stack_size */ - start, - arg, - 0, /* unsigned initflag */ - NULL); /* unsigned *thrdaddr */ -#endif - if (*thread == NULL) return 1; - SetThreadPriority(*thread, THREAD_PRIORITY_ABOVE_NORMAL); - return 0; -} - -static int pthread_join(pthread_t thread, void** value_ptr) { - (void)value_ptr; - return (WaitForSingleObject(thread, INFINITE) != WAIT_OBJECT_0 || - CloseHandle(thread) == 0); -} - -// Mutex -static int pthread_mutex_init(pthread_mutex_t* const mutex, void* mutexattr) { - (void)mutexattr; -#if _WIN32_WINNT >= 0x0600 // Windows Vista / Server 2008 or greater - InitializeCriticalSectionEx(mutex, 0 /*dwSpinCount*/, 0 /*Flags*/); -#else - InitializeCriticalSection(mutex); -#endif - return 0; -} - -static int pthread_mutex_lock(pthread_mutex_t* const mutex) { - EnterCriticalSection(mutex); - return 0; -} - -static int pthread_mutex_unlock(pthread_mutex_t* const mutex) { - LeaveCriticalSection(mutex); - return 0; -} - -static int pthread_mutex_destroy(pthread_mutex_t* const mutex) { - DeleteCriticalSection(mutex); - return 0; -} - -// Condition -static int pthread_cond_destroy(pthread_cond_t* const condition) { - int ok = 1; -#ifdef USE_WINDOWS_CONDITION_VARIABLE - (void)condition; -#else - ok &= (CloseHandle(condition->waiting_sem_) != 0); - ok &= (CloseHandle(condition->received_sem_) != 0); - ok &= (CloseHandle(condition->signal_event_) != 0); -#endif - return !ok; -} - -static int pthread_cond_init(pthread_cond_t* const condition, void* cond_attr) { - (void)cond_attr; -#ifdef USE_WINDOWS_CONDITION_VARIABLE - InitializeConditionVariable(condition); -#else - condition->waiting_sem_ = CreateSemaphore(NULL, 0, 1, NULL); - condition->received_sem_ = CreateSemaphore(NULL, 0, 1, NULL); - condition->signal_event_ = CreateEvent(NULL, FALSE, FALSE, NULL); - if (condition->waiting_sem_ == NULL || - condition->received_sem_ == NULL || - condition->signal_event_ == NULL) { - pthread_cond_destroy(condition); - return 1; - } -#endif - return 0; -} - -static int pthread_cond_signal(pthread_cond_t* const condition) { - int ok = 1; -#ifdef USE_WINDOWS_CONDITION_VARIABLE - WakeConditionVariable(condition); -#else - if (WaitForSingleObject(condition->waiting_sem_, 0) == WAIT_OBJECT_0) { - // a thread is waiting in pthread_cond_wait: allow it to be notified - ok = SetEvent(condition->signal_event_); - // wait until the event is consumed so the signaler cannot consume - // the event via its own pthread_cond_wait. - ok &= (WaitForSingleObject(condition->received_sem_, INFINITE) != - WAIT_OBJECT_0); - } -#endif - return !ok; -} - -static int pthread_cond_wait(pthread_cond_t* const condition, - pthread_mutex_t* const mutex) { - int ok; -#ifdef USE_WINDOWS_CONDITION_VARIABLE - ok = SleepConditionVariableCS(condition, mutex, INFINITE); -#else - // note that there is a consumer available so the signal isn't dropped in - // pthread_cond_signal - if (!ReleaseSemaphore(condition->waiting_sem_, 1, NULL)) - return 1; - // now unlock the mutex so pthread_cond_signal may be issued - pthread_mutex_unlock(mutex); - ok = (WaitForSingleObject(condition->signal_event_, INFINITE) == - WAIT_OBJECT_0); - ok &= ReleaseSemaphore(condition->received_sem_, 1, NULL); - pthread_mutex_lock(mutex); -#endif - return !ok; -} - -#else // !_WIN32 -# define THREADFN void* -# define THREAD_RETURN(val) val -#endif // _WIN32 - -//------------------------------------------------------------------------------ - -static void Execute(WebPWorker* const worker); // Forward declaration. - -static THREADFN ThreadLoop(void* ptr) { - WebPWorker* const worker = (WebPWorker*)ptr; - int done = 0; - while (!done) { - pthread_mutex_lock(&worker->impl_->mutex_); - while (worker->status_ == OK) { // wait in idling mode - pthread_cond_wait(&worker->impl_->condition_, &worker->impl_->mutex_); - } - if (worker->status_ == WORK) { - Execute(worker); - worker->status_ = OK; - } else if (worker->status_ == NOT_OK) { // finish the worker - done = 1; - } - // signal to the main thread that we're done (for Sync()) - pthread_cond_signal(&worker->impl_->condition_); - pthread_mutex_unlock(&worker->impl_->mutex_); - } - return THREAD_RETURN(NULL); // Thread is finished -} - -// main thread state control -static void ChangeState(WebPWorker* const worker, - WebPWorkerStatus new_status) { - // No-op when attempting to change state on a thread that didn't come up. - // Checking status_ without acquiring the lock first would result in a data - // race. - if (worker->impl_ == NULL) return; - - pthread_mutex_lock(&worker->impl_->mutex_); - if (worker->status_ >= OK) { - // wait for the worker to finish - while (worker->status_ != OK) { - pthread_cond_wait(&worker->impl_->condition_, &worker->impl_->mutex_); - } - // assign new status and release the working thread if needed - if (new_status != OK) { - worker->status_ = new_status; - pthread_cond_signal(&worker->impl_->condition_); - } - } - pthread_mutex_unlock(&worker->impl_->mutex_); -} - -#endif // WEBP_USE_THREAD - -//------------------------------------------------------------------------------ - -static void Init(WebPWorker* const worker) { - memset(worker, 0, sizeof(*worker)); - worker->status_ = NOT_OK; -} - -static int Sync(WebPWorker* const worker) { -#ifdef WEBP_USE_THREAD - ChangeState(worker, OK); -#endif - assert(worker->status_ <= OK); - return !worker->had_error; -} - -static int Reset(WebPWorker* const worker) { - int ok = 1; - worker->had_error = 0; - if (worker->status_ < OK) { -#ifdef WEBP_USE_THREAD - worker->impl_ = (WebPWorkerImpl*)WebPSafeCalloc(1, sizeof(*worker->impl_)); - if (worker->impl_ == NULL) { - return 0; - } - if (pthread_mutex_init(&worker->impl_->mutex_, NULL)) { - goto Error; - } - if (pthread_cond_init(&worker->impl_->condition_, NULL)) { - pthread_mutex_destroy(&worker->impl_->mutex_); - goto Error; - } - pthread_mutex_lock(&worker->impl_->mutex_); - ok = !pthread_create(&worker->impl_->thread_, NULL, ThreadLoop, worker); - if (ok) worker->status_ = OK; - pthread_mutex_unlock(&worker->impl_->mutex_); - if (!ok) { - pthread_mutex_destroy(&worker->impl_->mutex_); - pthread_cond_destroy(&worker->impl_->condition_); - Error: - WebPSafeFree(worker->impl_); - worker->impl_ = NULL; - return 0; - } -#else - worker->status_ = OK; -#endif - } else if (worker->status_ > OK) { - ok = Sync(worker); - } - assert(!ok || (worker->status_ == OK)); - return ok; -} - -static void Execute(WebPWorker* const worker) { - if (worker->hook != NULL) { - worker->had_error |= !worker->hook(worker->data1, worker->data2); - } -} - -static void Launch(WebPWorker* const worker) { -#ifdef WEBP_USE_THREAD - ChangeState(worker, WORK); -#else - Execute(worker); -#endif -} - -static void End(WebPWorker* const worker) { -#ifdef WEBP_USE_THREAD - if (worker->impl_ != NULL) { - ChangeState(worker, NOT_OK); - pthread_join(worker->impl_->thread_, NULL); - pthread_mutex_destroy(&worker->impl_->mutex_); - pthread_cond_destroy(&worker->impl_->condition_); - WebPSafeFree(worker->impl_); - worker->impl_ = NULL; - } -#else - worker->status_ = NOT_OK; - assert(worker->impl_ == NULL); -#endif - assert(worker->status_ == NOT_OK); -} - -//------------------------------------------------------------------------------ - -static WebPWorkerInterface g_worker_interface = { - Init, Reset, Sync, Launch, Execute, End -}; - -int WebPSetWorkerInterface(const WebPWorkerInterface* const winterface) { - if (winterface == NULL || - winterface->Init == NULL || winterface->Reset == NULL || - winterface->Sync == NULL || winterface->Launch == NULL || - winterface->Execute == NULL || winterface->End == NULL) { - return 0; - } - g_worker_interface = *winterface; - return 1; -} - -const WebPWorkerInterface* WebPGetWorkerInterface(void) { - return &g_worker_interface; -} - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/utils/thread.h b/drivers/webp/utils/thread.h deleted file mode 100644 index 6008bb7c01..0000000000 --- a/drivers/webp/utils/thread.h +++ /dev/null @@ -1,93 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Multi-threaded worker -// -// Author: Skal (pascal.massimino@gmail.com) - -#ifndef WEBP_UTILS_THREAD_H_ -#define WEBP_UTILS_THREAD_H_ - -#ifdef HAVE_CONFIG_H -#include "webp/config.h" -#endif - -#include "webp/types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -// State of the worker thread object -typedef enum { - NOT_OK = 0, // object is unusable - OK, // ready to work - WORK // busy finishing the current task -} WebPWorkerStatus; - -// Function to be called by the worker thread. Takes two opaque pointers as -// arguments (data1 and data2), and should return false in case of error. -typedef int (*WebPWorkerHook)(void*, void*); - -// Platform-dependent implementation details for the worker. -typedef struct WebPWorkerImpl WebPWorkerImpl; - -// Synchronization object used to launch job in the worker thread -typedef struct { - WebPWorkerImpl* impl_; - WebPWorkerStatus status_; - WebPWorkerHook hook; // hook to call - void* data1; // first argument passed to 'hook' - void* data2; // second argument passed to 'hook' - int had_error; // return value of the last call to 'hook' -} WebPWorker; - -// The interface for all thread-worker related functions. All these functions -// must be implemented. -typedef struct { - // Must be called first, before any other method. - void (*Init)(WebPWorker* const worker); - // Must be called to initialize the object and spawn the thread. Re-entrant. - // Will potentially launch the thread. Returns false in case of error. - int (*Reset)(WebPWorker* const worker); - // Makes sure the previous work is finished. Returns true if worker->had_error - // was not set and no error condition was triggered by the working thread. - int (*Sync)(WebPWorker* const worker); - // Triggers the thread to call hook() with data1 and data2 arguments. These - // hook/data1/data2 values can be changed at any time before calling this - // function, but not be changed afterward until the next call to Sync(). - void (*Launch)(WebPWorker* const worker); - // This function is similar to Launch() except that it calls the - // hook directly instead of using a thread. Convenient to bypass the thread - // mechanism while still using the WebPWorker structs. Sync() must - // still be called afterward (for error reporting). - void (*Execute)(WebPWorker* const worker); - // Kill the thread and terminate the object. To use the object again, one - // must call Reset() again. - void (*End)(WebPWorker* const worker); -} WebPWorkerInterface; - -// Install a new set of threading functions, overriding the defaults. This -// should be done before any workers are started, i.e., before any encoding or -// decoding takes place. The contents of the interface struct are copied, it -// is safe to free the corresponding memory after this call. This function is -// not thread-safe. Return false in case of invalid pointer or methods. -WEBP_EXTERN(int) WebPSetWorkerInterface( - const WebPWorkerInterface* const winterface); - -// Retrieve the currently set thread worker interface. -WEBP_EXTERN(const WebPWorkerInterface*) WebPGetWorkerInterface(void); - -//------------------------------------------------------------------------------ - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_UTILS_THREAD_H_ */ diff --git a/drivers/webp/utils/utils.c b/drivers/webp/utils/utils.c deleted file mode 100644 index b2193c4b47..0000000000 --- a/drivers/webp/utils/utils.c +++ /dev/null @@ -1,305 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Misc. common utility functions -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <stdlib.h> -#include <string.h> // for memcpy() -#include "webp/decode.h" -#include "webp/encode.h" -#include "webp/format_constants.h" // for MAX_PALETTE_SIZE -#include "./utils.h" - -// If PRINT_MEM_INFO is defined, extra info (like total memory used, number of -// alloc/free etc) is printed. For debugging/tuning purpose only (it's slow, -// and not multi-thread safe!). -// An interesting alternative is valgrind's 'massif' tool: -// http://valgrind.org/docs/manual/ms-manual.html -// Here is an example command line: -/* valgrind --tool=massif --massif-out-file=massif.out \ - --stacks=yes --alloc-fn=WebPSafeAlloc --alloc-fn=WebPSafeCalloc - ms_print massif.out -*/ -// In addition: -// * if PRINT_MEM_TRAFFIC is defined, all the details of the malloc/free cycles -// are printed. -// * if MALLOC_FAIL_AT is defined, the global environment variable -// $MALLOC_FAIL_AT is used to simulate a memory error when calloc or malloc -// is called for the nth time. Example usage: -// export MALLOC_FAIL_AT=50 && ./examples/cwebp input.png -// * if MALLOC_LIMIT is defined, the global environment variable $MALLOC_LIMIT -// sets the maximum amount of memory (in bytes) made available to libwebp. -// This can be used to emulate environment with very limited memory. -// Example: export MALLOC_LIMIT=64000000 && ./examples/dwebp picture.webp - -// #define PRINT_MEM_INFO -// #define PRINT_MEM_TRAFFIC -// #define MALLOC_FAIL_AT -// #define MALLOC_LIMIT - -//------------------------------------------------------------------------------ -// Checked memory allocation - -#if defined(PRINT_MEM_INFO) - -#include <stdio.h> - -static int num_malloc_calls = 0; -static int num_calloc_calls = 0; -static int num_free_calls = 0; -static int countdown_to_fail = 0; // 0 = off - -typedef struct MemBlock MemBlock; -struct MemBlock { - void* ptr_; - size_t size_; - MemBlock* next_; -}; - -static MemBlock* all_blocks = NULL; -static size_t total_mem = 0; -static size_t total_mem_allocated = 0; -static size_t high_water_mark = 0; -static size_t mem_limit = 0; - -static int exit_registered = 0; - -static void PrintMemInfo(void) { - fprintf(stderr, "\nMEMORY INFO:\n"); - fprintf(stderr, "num calls to: malloc = %4d\n", num_malloc_calls); - fprintf(stderr, " calloc = %4d\n", num_calloc_calls); - fprintf(stderr, " free = %4d\n", num_free_calls); - fprintf(stderr, "total_mem: %u\n", (uint32_t)total_mem); - fprintf(stderr, "total_mem allocated: %u\n", (uint32_t)total_mem_allocated); - fprintf(stderr, "high-water mark: %u\n", (uint32_t)high_water_mark); - while (all_blocks != NULL) { - MemBlock* b = all_blocks; - all_blocks = b->next_; - free(b); - } -} - -static void Increment(int* const v) { - if (!exit_registered) { -#if defined(MALLOC_FAIL_AT) - { - const char* const malloc_fail_at_str = getenv("MALLOC_FAIL_AT"); - if (malloc_fail_at_str != NULL) { - countdown_to_fail = atoi(malloc_fail_at_str); - } - } -#endif -#if defined(MALLOC_LIMIT) - { - const char* const malloc_limit_str = getenv("MALLOC_LIMIT"); - if (malloc_limit_str != NULL) { - mem_limit = atoi(malloc_limit_str); - } - } -#endif - (void)countdown_to_fail; - (void)mem_limit; - atexit(PrintMemInfo); - exit_registered = 1; - } - ++*v; -} - -static void AddMem(void* ptr, size_t size) { - if (ptr != NULL) { - MemBlock* const b = (MemBlock*)malloc(sizeof(*b)); - if (b == NULL) abort(); - b->next_ = all_blocks; - all_blocks = b; - b->ptr_ = ptr; - b->size_ = size; - total_mem += size; - total_mem_allocated += size; -#if defined(PRINT_MEM_TRAFFIC) -#if defined(MALLOC_FAIL_AT) - fprintf(stderr, "fail-count: %5d [mem=%u]\n", - num_malloc_calls + num_calloc_calls, (uint32_t)total_mem); -#else - fprintf(stderr, "Mem: %u (+%u)\n", (uint32_t)total_mem, (uint32_t)size); -#endif -#endif - if (total_mem > high_water_mark) high_water_mark = total_mem; - } -} - -static void SubMem(void* ptr) { - if (ptr != NULL) { - MemBlock** b = &all_blocks; - // Inefficient search, but that's just for debugging. - while (*b != NULL && (*b)->ptr_ != ptr) b = &(*b)->next_; - if (*b == NULL) { - fprintf(stderr, "Invalid pointer free! (%p)\n", ptr); - abort(); - } - { - MemBlock* const block = *b; - *b = block->next_; - total_mem -= block->size_; -#if defined(PRINT_MEM_TRAFFIC) - fprintf(stderr, "Mem: %u (-%u)\n", - (uint32_t)total_mem, (uint32_t)block->size_); -#endif - free(block); - } - } -} - -#else -#define Increment(v) do {} while (0) -#define AddMem(p, s) do {} while (0) -#define SubMem(p) do {} while (0) -#endif - -// Returns 0 in case of overflow of nmemb * size. -static int CheckSizeArgumentsOverflow(uint64_t nmemb, size_t size) { - const uint64_t total_size = nmemb * size; - if (nmemb == 0) return 1; - if ((uint64_t)size > WEBP_MAX_ALLOCABLE_MEMORY / nmemb) return 0; - if (total_size != (size_t)total_size) return 0; -#if defined(PRINT_MEM_INFO) && defined(MALLOC_FAIL_AT) - if (countdown_to_fail > 0 && --countdown_to_fail == 0) { - return 0; // fake fail! - } -#endif -#if defined(MALLOC_LIMIT) - if (mem_limit > 0 && total_mem + total_size >= mem_limit) { - return 0; // fake fail! - } -#endif - - return 1; -} - -void* WebPSafeMalloc(uint64_t nmemb, size_t size) { - void* ptr; - Increment(&num_malloc_calls); - if (!CheckSizeArgumentsOverflow(nmemb, size)) return NULL; - assert(nmemb * size > 0); - ptr = malloc((size_t)(nmemb * size)); - AddMem(ptr, (size_t)(nmemb * size)); - return ptr; -} - -void* WebPSafeCalloc(uint64_t nmemb, size_t size) { - void* ptr; - Increment(&num_calloc_calls); - if (!CheckSizeArgumentsOverflow(nmemb, size)) return NULL; - assert(nmemb * size > 0); - ptr = calloc((size_t)nmemb, size); - AddMem(ptr, (size_t)(nmemb * size)); - return ptr; -} - -void WebPSafeFree(void* const ptr) { - if (ptr != NULL) { - Increment(&num_free_calls); - SubMem(ptr); - } - free(ptr); -} - -// Public API function. -void WebPFree(void* ptr) { - free(ptr); -} - -//------------------------------------------------------------------------------ - -void WebPCopyPlane(const uint8_t* src, int src_stride, - uint8_t* dst, int dst_stride, int width, int height) { - assert(src != NULL && dst != NULL); - assert(src_stride >= width && dst_stride >= width); - while (height-- > 0) { - memcpy(dst, src, width); - src += src_stride; - dst += dst_stride; - } -} - -void WebPCopyPixels(const WebPPicture* const src, WebPPicture* const dst) { - assert(src != NULL && dst != NULL); - assert(src->width == dst->width && src->height == dst->height); - assert(src->use_argb && dst->use_argb); - WebPCopyPlane((uint8_t*)src->argb, 4 * src->argb_stride, (uint8_t*)dst->argb, - 4 * dst->argb_stride, 4 * src->width, src->height); -} - -//------------------------------------------------------------------------------ - -#define MAX_COLOR_COUNT MAX_PALETTE_SIZE -#define COLOR_HASH_SIZE (MAX_COLOR_COUNT * 4) -#define COLOR_HASH_RIGHT_SHIFT 22 // 32 - log2(COLOR_HASH_SIZE). - -int WebPGetColorPalette(const WebPPicture* const pic, uint32_t* const palette) { - int i; - int x, y; - int num_colors = 0; - uint8_t in_use[COLOR_HASH_SIZE] = { 0 }; - uint32_t colors[COLOR_HASH_SIZE]; - static const uint32_t kHashMul = 0x1e35a7bdU; - const uint32_t* argb = pic->argb; - const int width = pic->width; - const int height = pic->height; - uint32_t last_pix = ~argb[0]; // so we're sure that last_pix != argb[0] - assert(pic != NULL); - assert(pic->use_argb); - - for (y = 0; y < height; ++y) { - for (x = 0; x < width; ++x) { - int key; - if (argb[x] == last_pix) { - continue; - } - last_pix = argb[x]; - key = (kHashMul * last_pix) >> COLOR_HASH_RIGHT_SHIFT; - while (1) { - if (!in_use[key]) { - colors[key] = last_pix; - in_use[key] = 1; - ++num_colors; - if (num_colors > MAX_COLOR_COUNT) { - return MAX_COLOR_COUNT + 1; // Exact count not needed. - } - break; - } else if (colors[key] == last_pix) { - break; // The color is already there. - } else { - // Some other color sits here, so do linear conflict resolution. - ++key; - key &= (COLOR_HASH_SIZE - 1); // Key mask. - } - } - } - argb += pic->argb_stride; - } - - if (palette != NULL) { // Fill the colors into palette. - num_colors = 0; - for (i = 0; i < COLOR_HASH_SIZE; ++i) { - if (in_use[i]) { - palette[num_colors] = colors[i]; - ++num_colors; - } - } - } - return num_colors; -} - -#undef MAX_COLOR_COUNT -#undef COLOR_HASH_SIZE -#undef COLOR_HASH_RIGHT_SHIFT - -//------------------------------------------------------------------------------ diff --git a/drivers/webp/utils/utils.h b/drivers/webp/utils/utils.h deleted file mode 100644 index cef496af78..0000000000 --- a/drivers/webp/utils/utils.h +++ /dev/null @@ -1,182 +0,0 @@ -// Copyright 2012 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Misc. common utility functions -// -// Authors: Skal (pascal.massimino@gmail.com) -// Urvang (urvang@google.com) - -#ifndef WEBP_UTILS_UTILS_H_ -#define WEBP_UTILS_UTILS_H_ - -#ifdef HAVE_CONFIG_H -#include "webp/config.h" -#endif - -#include <assert.h> - -#include "../dsp/dsp.h" -#include "webp/types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -//------------------------------------------------------------------------------ -// Memory allocation - -// This is the maximum memory amount that libwebp will ever try to allocate. -#define WEBP_MAX_ALLOCABLE_MEMORY (1ULL << 40) - -// size-checking safe malloc/calloc: verify that the requested size is not too -// large, or return NULL. You don't need to call these for constructs like -// malloc(sizeof(foo)), but only if there's picture-dependent size involved -// somewhere (like: malloc(num_pixels * sizeof(*something))). That's why this -// safe malloc() borrows the signature from calloc(), pointing at the dangerous -// underlying multiply involved. -WEBP_EXTERN(void*) WebPSafeMalloc(uint64_t nmemb, size_t size); -// Note that WebPSafeCalloc() expects the second argument type to be 'size_t' -// in order to favor the "calloc(num_foo, sizeof(foo))" pattern. -WEBP_EXTERN(void*) WebPSafeCalloc(uint64_t nmemb, size_t size); - -// Companion deallocation function to the above allocations. -WEBP_EXTERN(void) WebPSafeFree(void* const ptr); - -//------------------------------------------------------------------------------ -// Alignment - -#define WEBP_ALIGN_CST 31 -#define WEBP_ALIGN(PTR) (((uintptr_t)(PTR) + WEBP_ALIGN_CST) & ~WEBP_ALIGN_CST) - -#if defined(WEBP_FORCE_ALIGNED) -#include <string.h> -// memcpy() is the safe way of moving potentially unaligned 32b memory. -static WEBP_INLINE uint32_t WebPMemToUint32(const uint8_t* const ptr) { - uint32_t A; - memcpy(&A, (const int*)ptr, sizeof(A)); - return A; -} -static WEBP_INLINE void WebPUint32ToMem(uint8_t* const ptr, uint32_t val) { - memcpy(ptr, &val, sizeof(val)); -} -#else -static WEBP_UBSAN_IGNORE_UNDEF WEBP_INLINE -uint32_t WebPMemToUint32(const uint8_t* const ptr) { - return *(const uint32_t*)ptr; -} -static WEBP_UBSAN_IGNORE_UNDEF WEBP_INLINE -void WebPUint32ToMem(uint8_t* const ptr, uint32_t val) { - *(uint32_t*)ptr = val; -} -#endif - -//------------------------------------------------------------------------------ -// Reading/writing data. - -// Read 16, 24 or 32 bits stored in little-endian order. -static WEBP_INLINE int GetLE16(const uint8_t* const data) { - return (int)(data[0] << 0) | (data[1] << 8); -} - -static WEBP_INLINE int GetLE24(const uint8_t* const data) { - return GetLE16(data) | (data[2] << 16); -} - -static WEBP_INLINE uint32_t GetLE32(const uint8_t* const data) { - return GetLE16(data) | ((uint32_t)GetLE16(data + 2) << 16); -} - -// Store 16, 24 or 32 bits in little-endian order. -static WEBP_INLINE void PutLE16(uint8_t* const data, int val) { - assert(val < (1 << 16)); - data[0] = (val >> 0); - data[1] = (val >> 8); -} - -static WEBP_INLINE void PutLE24(uint8_t* const data, int val) { - assert(val < (1 << 24)); - PutLE16(data, val & 0xffff); - data[2] = (val >> 16); -} - -static WEBP_INLINE void PutLE32(uint8_t* const data, uint32_t val) { - PutLE16(data, (int)(val & 0xffff)); - PutLE16(data + 2, (int)(val >> 16)); -} - -// Returns (int)floor(log2(n)). n must be > 0. -// use GNU builtins where available. -#if defined(__GNUC__) && \ - ((__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || __GNUC__ >= 4) -static WEBP_INLINE int BitsLog2Floor(uint32_t n) { - return 31 ^ __builtin_clz(n); -} -#elif defined(_MSC_VER) && _MSC_VER > 1310 && \ - (defined(_M_X64) || defined(_M_IX86)) -#include <intrin.h> -#pragma intrinsic(_BitScanReverse) - -static WEBP_INLINE int BitsLog2Floor(uint32_t n) { - unsigned long first_set_bit; - _BitScanReverse(&first_set_bit, n); - return first_set_bit; -} -#else -static WEBP_INLINE int BitsLog2Floor(uint32_t n) { - int log = 0; - uint32_t value = n; - int i; - - for (i = 4; i >= 0; --i) { - const int shift = (1 << i); - const uint32_t x = value >> shift; - if (x != 0) { - value = x; - log += shift; - } - } - return log; -} -#endif - -//------------------------------------------------------------------------------ -// Pixel copying. - -struct WebPPicture; - -// Copy width x height pixels from 'src' to 'dst' honoring the strides. -WEBP_EXTERN(void) WebPCopyPlane(const uint8_t* src, int src_stride, - uint8_t* dst, int dst_stride, - int width, int height); - -// Copy ARGB pixels from 'src' to 'dst' honoring strides. 'src' and 'dst' are -// assumed to be already allocated and using ARGB data. -WEBP_EXTERN(void) WebPCopyPixels(const struct WebPPicture* const src, - struct WebPPicture* const dst); - -//------------------------------------------------------------------------------ -// Unique colors. - -// Returns count of unique colors in 'pic', assuming pic->use_argb is true. -// If the unique color count is more than MAX_COLOR_COUNT, returns -// MAX_COLOR_COUNT+1. -// If 'palette' is not NULL and number of unique colors is less than or equal to -// MAX_COLOR_COUNT, also outputs the actual unique colors into 'palette'. -// Note: 'palette' is assumed to be an array already allocated with at least -// MAX_COLOR_COUNT elements. -WEBP_EXTERN(int) WebPGetColorPalette(const struct WebPPicture* const pic, - uint32_t* const palette); - -//------------------------------------------------------------------------------ - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif /* WEBP_UTILS_UTILS_H_ */ |