diff options
Diffstat (limited to 'thirdparty/libwebp/dsp/yuv_sse2.c')
| -rw-r--r-- | thirdparty/libwebp/dsp/yuv_sse2.c | 863 |
1 files changed, 0 insertions, 863 deletions
diff --git a/thirdparty/libwebp/dsp/yuv_sse2.c b/thirdparty/libwebp/dsp/yuv_sse2.c deleted file mode 100644 index e33c2bbafd..0000000000 --- a/thirdparty/libwebp/dsp/yuv_sse2.c +++ /dev/null @@ -1,863 +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 "./common_sse2.h" -#include <stdlib.h> -#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); -} - -// 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 in0, __m128i* const in1, - __m128i* const in2, __m128i* const in3, - __m128i* const in4, __m128i* const in5, - uint8_t* const 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 - VP8PlanarTo24b(in0, in1, in2, in3, in4, in5); - - _mm_storeu_si128((__m128i*)(rgb + 0), *in0); - _mm_storeu_si128((__m128i*)(rgb + 16), *in1); - _mm_storeu_si128((__m128i*)(rgb + 32), *in2); - _mm_storeu_si128((__m128i*)(rgb + 48), *in3); - _mm_storeu_si128((__m128i*)(rgb + 64), *in4); - _mm_storeu_si128((__m128i*)(rgb + 80), *in5); -} - -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 rgb0, rgb1, rgb2, rgb3, rgb4, rgb5; - - 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. - rgb0 = _mm_packus_epi16(R0, R1); - rgb1 = _mm_packus_epi16(R2, R3); - rgb2 = _mm_packus_epi16(G0, G1); - rgb3 = _mm_packus_epi16(G2, G3); - rgb4 = _mm_packus_epi16(B0, B1); - rgb5 = _mm_packus_epi16(B2, B3); - - // Pack as RGBRGBRGBRGB. - PlanarTo24b(&rgb0, &rgb1, &rgb2, &rgb3, &rgb4, &rgb5, 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 bgr0, bgr1, bgr2, bgr3, bgr4, bgr5; - - 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. - bgr0 = _mm_packus_epi16(B0, B1); - bgr1 = _mm_packus_epi16(B2, B3); - bgr2 = _mm_packus_epi16(G0, G1); - bgr3 = _mm_packus_epi16(G2, G3); - bgr4 = _mm_packus_epi16(R0, R1); - bgr5= _mm_packus_epi16(R2, R3); - - // Pack as BGRBGRBGRBGR. - PlanarTo24b(&bgr0, &bgr1, &bgr2, &bgr3, &bgr4, &bgr5, 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 rgb0, rgb1, rgb2, rgb3, rgb4, rgb5; - - 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. - rgb0 = _mm_packus_epi16(R0, R1); - rgb1 = _mm_packus_epi16(R2, R3); - rgb2 = _mm_packus_epi16(G0, G1); - rgb3 = _mm_packus_epi16(G2, G3); - rgb4 = _mm_packus_epi16(B0, B1); - rgb5 = _mm_packus_epi16(B2, B3); - - // Pack as RGBRGBRGBRGB. - PlanarTo24b(&rgb0, &rgb1, &rgb2, &rgb3, &rgb4, &rgb5, 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 bgr0, bgr1, bgr2, bgr3, bgr4, bgr5; - - 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. - bgr0 = _mm_packus_epi16(B0, B1); - bgr1 = _mm_packus_epi16(B2, B3); - bgr2 = _mm_packus_epi16(G0, G1); - bgr3 = _mm_packus_epi16(G2, G3); - bgr4 = _mm_packus_epi16(R0, R1); - bgr5 = _mm_packus_epi16(R2, R3); - - // Pack as BGRBGRBGRBGR. - PlanarTo24b(&bgr0, &bgr1, &bgr2, &bgr3, &bgr4, &bgr5, 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 rgb /*in[6]*/) { - const __m128i zero = _mm_setzero_si128(); - __m128i a0 = LOAD_16(argb + 0); - __m128i a1 = LOAD_16(argb + 4); - __m128i a2 = LOAD_16(argb + 8); - __m128i a3 = LOAD_16(argb + 12); - VP8L32bToPlanar(&a0, &a1, &a2, &a3); - rgb[0] = _mm_unpacklo_epi8(a1, zero); - rgb[1] = _mm_unpackhi_epi8(a1, zero); - rgb[2] = _mm_unpacklo_epi8(a2, zero); - rgb[3] = _mm_unpackhi_epi8(a2, zero); - rgb[4] = _mm_unpacklo_epi8(a3, zero); - rgb[5] = _mm_unpackhi_epi8(a3, 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 Y0, Y1, rgb[6]; - RGB32PackedToPlanar(&argb[i], rgb); - ConvertRGBToY(&rgb[0], &rgb[2], &rgb[4], &Y0); - ConvertRGBToY(&rgb[1], &rgb[3], &rgb[5], &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 rgb[6], U0, V0, U1, V1; - RGB32PackedToPlanar(&argb[i], rgb); - HorizontalAddPack(&rgb[0], &rgb[1], &rgb[0]); - HorizontalAddPack(&rgb[2], &rgb[3], &rgb[2]); - HorizontalAddPack(&rgb[4], &rgb[5], &rgb[4]); - ConvertRGBToUV(&rgb[0], &rgb[2], &rgb[4], &U0, &V0); - - RGB32PackedToPlanar(&argb[i + 16], rgb); - HorizontalAddPack(&rgb[0], &rgb[1], &rgb[0]); - HorizontalAddPack(&rgb[2], &rgb[3], &rgb[2]); - HorizontalAddPack(&rgb[4], &rgb[5], &rgb[4]); - ConvertRGBToUV(&rgb[0], &rgb[2], &rgb[4], &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; -} - -//------------------------------------------------------------------------------ - -#define MAX_Y ((1 << 10) - 1) // 10b precision over 16b-arithmetic -static uint16_t clip_y(int v) { - return (v < 0) ? 0 : (v > MAX_Y) ? MAX_Y : (uint16_t)v; -} - -static uint64_t SharpYUVUpdateY_SSE2(const uint16_t* ref, const uint16_t* src, - uint16_t* dst, int len) { - uint64_t diff = 0; - uint32_t tmp[4]; - int i; - const __m128i zero = _mm_setzero_si128(); - const __m128i max = _mm_set1_epi16(MAX_Y); - const __m128i one = _mm_set1_epi16(1); - __m128i sum = zero; - - for (i = 0; i + 8 <= len; i += 8) { - const __m128i A = _mm_loadu_si128((const __m128i*)(ref + i)); - const __m128i B = _mm_loadu_si128((const __m128i*)(src + i)); - const __m128i C = _mm_loadu_si128((const __m128i*)(dst + i)); - const __m128i D = _mm_sub_epi16(A, B); // diff_y - const __m128i E = _mm_cmpgt_epi16(zero, D); // sign (-1 or 0) - const __m128i F = _mm_add_epi16(C, D); // new_y - const __m128i G = _mm_or_si128(E, one); // -1 or 1 - const __m128i H = _mm_max_epi16(_mm_min_epi16(F, max), zero); - const __m128i I = _mm_madd_epi16(D, G); // sum(abs(...)) - _mm_storeu_si128((__m128i*)(dst + i), H); - sum = _mm_add_epi32(sum, I); - } - _mm_storeu_si128((__m128i*)tmp, sum); - diff = tmp[3] + tmp[2] + tmp[1] + tmp[0]; - for (; i < len; ++i) { - const int diff_y = ref[i] - src[i]; - const int new_y = (int)dst[i] + diff_y; - dst[i] = clip_y(new_y); - diff += (uint64_t)abs(diff_y); - } - return diff; -} - -static void SharpYUVUpdateRGB_SSE2(const int16_t* ref, const int16_t* src, - int16_t* dst, int len) { - int i = 0; - for (i = 0; i + 8 <= len; i += 8) { - const __m128i A = _mm_loadu_si128((const __m128i*)(ref + i)); - const __m128i B = _mm_loadu_si128((const __m128i*)(src + i)); - const __m128i C = _mm_loadu_si128((const __m128i*)(dst + i)); - const __m128i D = _mm_sub_epi16(A, B); // diff_uv - const __m128i E = _mm_add_epi16(C, D); // new_uv - _mm_storeu_si128((__m128i*)(dst + i), E); - } - for (; i < len; ++i) { - const int diff_uv = ref[i] - src[i]; - dst[i] += diff_uv; - } -} - -static void SharpYUVFilterRow_SSE2(const int16_t* A, const int16_t* B, int len, - const uint16_t* best_y, uint16_t* out) { - int i; - const __m128i kCst8 = _mm_set1_epi16(8); - const __m128i max = _mm_set1_epi16(MAX_Y); - const __m128i zero = _mm_setzero_si128(); - for (i = 0; i + 8 <= len; i += 8) { - const __m128i a0 = _mm_loadu_si128((const __m128i*)(A + i + 0)); - const __m128i a1 = _mm_loadu_si128((const __m128i*)(A + i + 1)); - const __m128i b0 = _mm_loadu_si128((const __m128i*)(B + i + 0)); - const __m128i b1 = _mm_loadu_si128((const __m128i*)(B + i + 1)); - const __m128i a0b1 = _mm_add_epi16(a0, b1); - const __m128i a1b0 = _mm_add_epi16(a1, b0); - const __m128i a0a1b0b1 = _mm_add_epi16(a0b1, a1b0); // A0+A1+B0+B1 - const __m128i a0a1b0b1_8 = _mm_add_epi16(a0a1b0b1, kCst8); - const __m128i a0b1_2 = _mm_add_epi16(a0b1, a0b1); // 2*(A0+B1) - const __m128i a1b0_2 = _mm_add_epi16(a1b0, a1b0); // 2*(A1+B0) - const __m128i c0 = _mm_srai_epi16(_mm_add_epi16(a0b1_2, a0a1b0b1_8), 3); - const __m128i c1 = _mm_srai_epi16(_mm_add_epi16(a1b0_2, a0a1b0b1_8), 3); - const __m128i d0 = _mm_add_epi16(c1, a0); - const __m128i d1 = _mm_add_epi16(c0, a1); - const __m128i e0 = _mm_srai_epi16(d0, 1); - const __m128i e1 = _mm_srai_epi16(d1, 1); - const __m128i f0 = _mm_unpacklo_epi16(e0, e1); - const __m128i f1 = _mm_unpackhi_epi16(e0, e1); - const __m128i g0 = _mm_loadu_si128((const __m128i*)(best_y + 2 * i + 0)); - const __m128i g1 = _mm_loadu_si128((const __m128i*)(best_y + 2 * i + 8)); - const __m128i h0 = _mm_add_epi16(g0, f0); - const __m128i h1 = _mm_add_epi16(g1, f1); - const __m128i i0 = _mm_max_epi16(_mm_min_epi16(h0, max), zero); - const __m128i i1 = _mm_max_epi16(_mm_min_epi16(h1, max), zero); - _mm_storeu_si128((__m128i*)(out + 2 * i + 0), i0); - _mm_storeu_si128((__m128i*)(out + 2 * i + 8), i1); - } - for (; i < len; ++i) { - // (9 * A0 + 3 * A1 + 3 * B0 + B1 + 8) >> 4 = - // = (8 * A0 + 2 * (A1 + B0) + (A0 + A1 + B0 + B1 + 8)) >> 4 - // We reuse the common sub-expressions. - const int a0b1 = A[i + 0] + B[i + 1]; - const int a1b0 = A[i + 1] + B[i + 0]; - const int a0a1b0b1 = a0b1 + a1b0 + 8; - const int v0 = (8 * A[i + 0] + 2 * a1b0 + a0a1b0b1) >> 4; - const int v1 = (8 * A[i + 1] + 2 * a0b1 + a0a1b0b1) >> 4; - out[2 * i + 0] = clip_y(best_y[2 * i + 0] + v0); - out[2 * i + 1] = clip_y(best_y[2 * i + 1] + v1); - } -} - -#undef MAX_Y - -//------------------------------------------------------------------------------ - -extern void WebPInitSharpYUVSSE2(void); - -WEBP_TSAN_IGNORE_FUNCTION void WebPInitSharpYUVSSE2(void) { - WebPSharpYUVUpdateY = SharpYUVUpdateY_SSE2; - WebPSharpYUVUpdateRGB = SharpYUVUpdateRGB_SSE2; - WebPSharpYUVFilterRow = SharpYUVFilterRow_SSE2; -} - -#else // !WEBP_USE_SSE2 - -WEBP_DSP_INIT_STUB(WebPInitSamplersSSE2) -WEBP_DSP_INIT_STUB(WebPInitConvertARGBToYUVSSE2) -WEBP_DSP_INIT_STUB(WebPInitSharpYUVSSE2) - -#endif // WEBP_USE_SSE2 |