diff options
Diffstat (limited to 'src/3rdparty/libwebp/src/dsp/yuv_sse2.c')
| -rw-r--r-- | src/3rdparty/libwebp/src/dsp/yuv_sse2.c | 894 |
1 files changed, 673 insertions, 221 deletions
diff --git a/src/3rdparty/libwebp/src/dsp/yuv_sse2.c b/src/3rdparty/libwebp/src/dsp/yuv_sse2.c index 6fe0f3b..f72fe32 100644 --- a/src/3rdparty/libwebp/src/dsp/yuv_sse2.c +++ b/src/3rdparty/libwebp/src/dsp/yuv_sse2.c @@ -16,307 +16,759 @@ #if defined(WEBP_USE_SSE2) #include <emmintrin.h> -#include <string.h> // for memcpy -typedef union { // handy struct for converting SSE2 registers - int32_t i32[4]; - uint8_t u8[16]; - __m128i m; -} VP8kCstSSE2; - -#if defined(WEBP_YUV_USE_SSE2_TABLES) - -#include "./yuv_tables_sse2.h" - -void VP8YUVInitSSE2(void) {} - -#else +//----------------------------------------------------------------------------- +// Convert spans of 32 pixels to various RGB formats for the fancy upsampler. -static int done_sse2 = 0; -static VP8kCstSSE2 VP8kUtoRGBA[256], VP8kVtoRGBA[256], VP8kYtoRGBA[256]; - -void VP8YUVInitSSE2(void) { - if (!done_sse2) { - int i; - for (i = 0; i < 256; ++i) { - VP8kYtoRGBA[i].i32[0] = - VP8kYtoRGBA[i].i32[1] = - VP8kYtoRGBA[i].i32[2] = (i - 16) * kYScale + YUV_HALF2; - VP8kYtoRGBA[i].i32[3] = 0xff << YUV_FIX2; - - VP8kUtoRGBA[i].i32[0] = 0; - VP8kUtoRGBA[i].i32[1] = -kUToG * (i - 128); - VP8kUtoRGBA[i].i32[2] = kUToB * (i - 128); - VP8kUtoRGBA[i].i32[3] = 0; - - VP8kVtoRGBA[i].i32[0] = kVToR * (i - 128); - VP8kVtoRGBA[i].i32[1] = -kVToG * (i - 128); - VP8kVtoRGBA[i].i32[2] = 0; - VP8kVtoRGBA[i].i32[3] = 0; - } - done_sse2 = 1; - -#if 0 // code used to generate 'yuv_tables_sse2.h' - printf("static const VP8kCstSSE2 VP8kYtoRGBA[256] = {\n"); - for (i = 0; i < 256; ++i) { - printf(" {{0x%.8x, 0x%.8x, 0x%.8x, 0x%.8x}},\n", - VP8kYtoRGBA[i].i32[0], VP8kYtoRGBA[i].i32[1], - VP8kYtoRGBA[i].i32[2], VP8kYtoRGBA[i].i32[3]); - } - printf("};\n\n"); - printf("static const VP8kCstSSE2 VP8kUtoRGBA[256] = {\n"); - for (i = 0; i < 256; ++i) { - printf(" {{0, 0x%.8x, 0x%.8x, 0}},\n", - VP8kUtoRGBA[i].i32[1], VP8kUtoRGBA[i].i32[2]); - } - printf("};\n\n"); - printf("static VP8kCstSSE2 VP8kVtoRGBA[256] = {\n"); - for (i = 0; i < 256; ++i) { - printf(" {{0x%.8x, 0x%.8x, 0, 0}},\n", - VP8kVtoRGBA[i].i32[0], VP8kVtoRGBA[i].i32[1]); - } - printf("};\n\n"); -#endif - } +// 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); + const __m128i k33050 = _mm_set1_epi16(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] } -#endif // WEBP_YUV_USE_SSE2_TABLES +// 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 +} -static WEBP_INLINE __m128i LoadUVPart(int u, int v) { - const __m128i u_part = _mm_loadu_si128(&VP8kUtoRGBA[u].m); - const __m128i v_part = _mm_loadu_si128(&VP8kVtoRGBA[v].m); - const __m128i uv_part = _mm_add_epi32(u_part, v_part); - return uv_part; +// 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); } -static WEBP_INLINE __m128i GetRGBA32bWithUV(int y, const __m128i uv_part) { - const __m128i y_part = _mm_loadu_si128(&VP8kYtoRGBA[y].m); - const __m128i rgba1 = _mm_add_epi32(y_part, uv_part); - const __m128i rgba2 = _mm_srai_epi32(rgba1, YUV_FIX2); - return rgba2; +// 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); } -static WEBP_INLINE __m128i GetRGBA32b(int y, int u, int v) { - const __m128i uv_part = LoadUVPart(u, v); - return GetRGBA32bWithUV(y, uv_part); +// 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); } -static WEBP_INLINE void YuvToRgbSSE2(uint8_t y, uint8_t u, uint8_t v, - uint8_t* const rgb) { - const __m128i tmp0 = GetRGBA32b(y, u, v); - const __m128i tmp1 = _mm_packs_epi32(tmp0, tmp0); - const __m128i tmp2 = _mm_packus_epi16(tmp1, tmp1); - // Note: we store 8 bytes at a time, not 3 bytes! -> memory stomp - _mm_storel_epi64((__m128i*)rgb, tmp2); +// 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); } -static WEBP_INLINE void YuvToBgrSSE2(uint8_t y, uint8_t u, uint8_t v, - uint8_t* const bgr) { - const __m128i tmp0 = GetRGBA32b(y, u, v); - const __m128i tmp1 = _mm_shuffle_epi32(tmp0, _MM_SHUFFLE(3, 0, 1, 2)); - const __m128i tmp2 = _mm_packs_epi32(tmp1, tmp1); - const __m128i tmp3 = _mm_packus_epi16(tmp2, tmp2); - // Note: we store 8 bytes at a time, not 3 bytes! -> memory stomp - _mm_storel_epi64((__m128i*)bgr, tmp3); +// 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); } -//----------------------------------------------------------------------------- -// Convert spans of 32 pixels to various RGB formats for the fancy upsampler. +// 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)); +} -#ifdef FANCY_UPSAMPLING +// 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 += 4) { - const __m128i tmp0_1 = GetRGBA32b(y[n + 0], u[n + 0], v[n + 0]); - const __m128i tmp0_2 = GetRGBA32b(y[n + 1], u[n + 1], v[n + 1]); - const __m128i tmp0_3 = GetRGBA32b(y[n + 2], u[n + 2], v[n + 2]); - const __m128i tmp0_4 = GetRGBA32b(y[n + 3], u[n + 3], v[n + 3]); - const __m128i tmp1_1 = _mm_packs_epi32(tmp0_1, tmp0_2); - const __m128i tmp1_2 = _mm_packs_epi32(tmp0_3, tmp0_4); - const __m128i tmp2 = _mm_packus_epi16(tmp1_1, tmp1_2); - _mm_storeu_si128((__m128i*)dst, tmp2); - dst += 4 * 4; + 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 += 2) { - const __m128i tmp0_1 = GetRGBA32b(y[n + 0], u[n + 0], v[n + 0]); - const __m128i tmp0_2 = GetRGBA32b(y[n + 1], u[n + 1], v[n + 1]); - const __m128i tmp1_1 = _mm_shuffle_epi32(tmp0_1, _MM_SHUFFLE(3, 0, 1, 2)); - const __m128i tmp1_2 = _mm_shuffle_epi32(tmp0_2, _MM_SHUFFLE(3, 0, 1, 2)); - const __m128i tmp2_1 = _mm_packs_epi32(tmp1_1, tmp1_2); - const __m128i tmp3 = _mm_packus_epi16(tmp2_1, tmp2_1); - _mm_storel_epi64((__m128i*)dst, tmp3); - dst += 4 * 2; + 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 VP8YuvToRgb32(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) { + const __m128i kAlpha = _mm_set1_epi16(255); int n; - uint8_t tmp0[2 * 3 + 5 + 15]; - uint8_t* const tmp = (uint8_t*)((uintptr_t)(tmp0 + 15) & ~15); // align - for (n = 0; n < 30; ++n) { // we directly stomp the *dst memory - YuvToRgbSSE2(y[n], u[n], v[n], dst + n * 3); + 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); } - // Last two pixels are special: we write in a tmp buffer before sending - // to dst. - YuvToRgbSSE2(y[n + 0], u[n + 0], v[n + 0], tmp + 0); - YuvToRgbSSE2(y[n + 1], u[n + 1], v[n + 1], tmp + 3); - memcpy(dst + n * 3, tmp, 2 * 3); } -void VP8YuvToBgr32(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) { + const __m128i kAlpha = _mm_set1_epi16(255); int n; - uint8_t tmp0[2 * 3 + 5 + 15]; - uint8_t* const tmp = (uint8_t*)((uintptr_t)(tmp0 + 15) & ~15); // align - for (n = 0; n < 30; ++n) { - YuvToBgrSSE2(y[n], u[n], v[n], dst + n * 3); + 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); } - YuvToBgrSSE2(y[n + 0], u[n + 0], v[n + 0], tmp + 0); - YuvToBgrSSE2(y[n + 1], u[n + 1], v[n + 1], tmp + 3); - memcpy(dst + n * 3, tmp, 2 * 3); } -#endif // FANCY_UPSAMPLING +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 YuvToRgbaRowSSE2(const uint8_t* y, - const uint8_t* u, const uint8_t* v, - uint8_t* dst, int len) { +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 + 4 <= len; n += 4) { - const __m128i uv_0 = LoadUVPart(u[0], v[0]); - const __m128i uv_1 = LoadUVPart(u[1], v[1]); - const __m128i tmp0_1 = GetRGBA32bWithUV(y[0], uv_0); - const __m128i tmp0_2 = GetRGBA32bWithUV(y[1], uv_0); - const __m128i tmp0_3 = GetRGBA32bWithUV(y[2], uv_1); - const __m128i tmp0_4 = GetRGBA32bWithUV(y[3], uv_1); - const __m128i tmp1_1 = _mm_packs_epi32(tmp0_1, tmp0_2); - const __m128i tmp1_2 = _mm_packs_epi32(tmp0_3, tmp0_4); - const __m128i tmp2 = _mm_packus_epi16(tmp1_1, tmp1_2); - _mm_storeu_si128((__m128i*)dst, tmp2); - dst += 4 * 4; - y += 4; - u += 2; - v += 2; + 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; } - // Finish off - while (n < len) { + for (; n < len; ++n) { // Finish off VP8YuvToRgba(y[0], u[0], v[0], dst); dst += 4; - ++y; + y += 1; u += (n & 1); v += (n & 1); - ++n; } } -static void YuvToBgraRowSSE2(const uint8_t* y, - const uint8_t* u, const uint8_t* v, - uint8_t* dst, int len) { +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 + 2 <= len; n += 2) { - const __m128i uv_0 = LoadUVPart(u[0], v[0]); - const __m128i tmp0_1 = GetRGBA32bWithUV(y[0], uv_0); - const __m128i tmp0_2 = GetRGBA32bWithUV(y[1], uv_0); - const __m128i tmp1_1 = _mm_shuffle_epi32(tmp0_1, _MM_SHUFFLE(3, 0, 1, 2)); - const __m128i tmp1_2 = _mm_shuffle_epi32(tmp0_2, _MM_SHUFFLE(3, 0, 1, 2)); - const __m128i tmp2_1 = _mm_packs_epi32(tmp1_1, tmp1_2); - const __m128i tmp3 = _mm_packus_epi16(tmp2_1, tmp2_1); - _mm_storel_epi64((__m128i*)dst, tmp3); - dst += 4 * 2; - y += 2; - ++u; - ++v; + 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; } - // Finish off - if (len & 1) { + 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 YuvToArgbRowSSE2(const uint8_t* y, - const uint8_t* u, const uint8_t* v, - uint8_t* dst, int len) { +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 + 2 <= len; n += 2) { - const __m128i uv_0 = LoadUVPart(u[0], v[0]); - const __m128i tmp0_1 = GetRGBA32bWithUV(y[0], uv_0); - const __m128i tmp0_2 = GetRGBA32bWithUV(y[1], uv_0); - const __m128i tmp1_1 = _mm_shuffle_epi32(tmp0_1, _MM_SHUFFLE(2, 1, 0, 3)); - const __m128i tmp1_2 = _mm_shuffle_epi32(tmp0_2, _MM_SHUFFLE(2, 1, 0, 3)); - const __m128i tmp2_1 = _mm_packs_epi32(tmp1_1, tmp1_2); - const __m128i tmp3 = _mm_packus_epi16(tmp2_1, tmp2_1); - _mm_storel_epi64((__m128i*)dst, tmp3); - dst += 4 * 2; - y += 2; - ++u; - ++v; + 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; } - // Finish off - if (len & 1) { + 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 YuvToRgbRowSSE2(const uint8_t* y, - const uint8_t* u, const uint8_t* v, - uint8_t* dst, int len) { +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 + 2 < len; ++n) { // we directly stomp the *dst memory - YuvToRgbSSE2(y[0], u[0], v[0], dst); // stomps 8 bytes + 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; + y += 1; u += (n & 1); v += (n & 1); } - VP8YuvToRgb(y[0], u[0], v[0], dst); - if (len > 1) { - VP8YuvToRgb(y[1], u[n & 1], v[n & 1], dst + 3); - } } -static void YuvToBgrRowSSE2(const uint8_t* y, - const uint8_t* u, const uint8_t* v, - uint8_t* dst, int len) { +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 + 2 < len; ++n) { // we directly stomp the *dst memory - YuvToBgrSSE2(y[0], u[0], v[0], dst); // stomps 8 bytes + 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; + y += 1; u += (n & 1); v += (n & 1); } - VP8YuvToBgr(y[0], u[0], v[0], dst + 0); - if (len > 1) { - VP8YuvToBgr(y[1], u[n & 1], v[n & 1], dst + 3); - } } -#endif // WEBP_USE_SSE2 - //------------------------------------------------------------------------------ // Entry point extern void WebPInitSamplersSSE2(void); -void WebPInitSamplersSSE2(void) { -#if defined(WEBP_USE_SSE2) - WebPSamplers[MODE_RGB] = YuvToRgbRowSSE2; - WebPSamplers[MODE_RGBA] = YuvToRgbaRowSSE2; - WebPSamplers[MODE_BGR] = YuvToBgrRowSSE2; - WebPSamplers[MODE_BGRA] = YuvToBgraRowSSE2; - WebPSamplers[MODE_ARGB] = YuvToArgbRowSSE2; -#endif // WEBP_USE_SSE2 +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 |