Update libwebp to 0.6.1

* lossless performance and compression improvements + a new 'cruncher' mode (-m 6 -q 100)
* ARM performance improvements with clang (15-20% w/ndk r15c)
* webp-js: emscripten/webassembly based javascript decoder
* miscellaneous bug & build fixes

1 files changed, 0 insertions, 229 deletions

diff --git a/thirdparty/libwebp/dsp/lossless.h b/thirdparty/libwebp/dsp/lossless.h
deleted file mode 100644
index 352a54e509..0000000000
--- a/thirdparty/libwebp/dsp/lossless.h
+++ /dev/null
@@ -1,229 +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_enc.h"
-#include "../utils/utils.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifdef WEBP_EXPERIMENTAL_FEATURES
-#include "../enc/delta_palettization_enc.h"
-#endif  // WEBP_EXPERIMENTAL_FEATURES
-
-//------------------------------------------------------------------------------
-// Decoding
-
-typedef uint32_t (*VP8LPredictorFunc)(uint32_t left, const uint32_t* const top);
-extern VP8LPredictorFunc VP8LPredictors[16];
-extern VP8LPredictorFunc VP8LPredictors_C[16];
-// These Add/Sub function expects upper[-1] and out[-1] to be readable.
-typedef void (*VP8LPredictorAddSubFunc)(const uint32_t* in,
-                                        const uint32_t* upper, int num_pixels,
-                                        uint32_t* out);
-extern VP8LPredictorAddSubFunc VP8LPredictorsAdd[16];
-extern VP8LPredictorAddSubFunc VP8LPredictorsAdd_C[16];
-
-typedef void (*VP8LProcessDecBlueAndRedFunc)(const uint32_t* src,
-                                             int num_pixels, uint32_t* dst);
-extern VP8LProcessDecBlueAndRedFunc 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 (*VP8LTransformColorInverseFunc)(const VP8LMultipliers* const m,
-                                              const uint32_t* src,
-                                              int num_pixels, uint32_t* dst);
-extern VP8LTransformColorInverseFunc 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);
-
-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,
-                                 const uint32_t* src, int num_pixels,
-                                 uint32_t* dst);
-
-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(const uint32_t* src, int num_pixels,
-                                uint32_t* dst);
-
-// Must be called before calling any of the above methods.
-void VP8LDspInit(void);
-
-//------------------------------------------------------------------------------
-// Encoding
-
-typedef void (*VP8LProcessEncBlueAndRedFunc)(uint32_t* dst, int num_pixels);
-extern VP8LProcessEncBlueAndRedFunc VP8LSubtractGreenFromBlueAndRed;
-typedef void (*VP8LTransformColorFunc)(const VP8LMultipliers* const m,
-                                       uint32_t* const dst, int num_pixels);
-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[]);
-
-extern VP8LPredictorAddSubFunc VP8LPredictorsSub[16];
-extern VP8LPredictorAddSubFunc VP8LPredictorsSub_C[16];
-
-// -----------------------------------------------------------------------------
-// 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 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.
-typedef void (*VP8LGetCombinedEntropyUnrefinedFunc)(
-    const uint32_t X[], const uint32_t Y[], int length,
-    VP8LBitEntropy* const bit_entropy, VP8LStreaks* const stats);
-extern VP8LGetCombinedEntropyUnrefinedFunc VP8LGetCombinedEntropyUnrefined;
-
-// Get the entropy for the distribution 'X'.
-typedef void (*VP8LGetEntropyUnrefinedFunc)(const uint32_t X[], int length,
-                                            VP8LBitEntropy* const bit_entropy,
-                                            VP8LStreaks* const stats);
-extern VP8LGetEntropyUnrefinedFunc VP8LGetEntropyUnrefined;
-
-void VP8LBitsEntropyUnrefined(const uint32_t* const array, int n,
-                              VP8LBitEntropy* const entropy);
-
-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;
-
-typedef void (*VP8LBundleColorMapFunc)(const uint8_t* const row, int width,
-                                       int xbits, uint32_t* dst);
-extern VP8LBundleColorMapFunc VP8LBundleColorMap;
-void VP8LBundleColorMap_C(const uint8_t* const row, int width, int xbits,
-                          uint32_t* dst);
-
-// Must be called before calling any of the above methods.
-void VP8LEncDspInit(void);
-
-//------------------------------------------------------------------------------
-
-#ifdef __cplusplus
-}    // extern "C"
-#endif
-
-#endif  // WEBP_DSP_LOSSLESS_H_