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author | Liang Qi <liang.qi@theqtcompany.com> | 2015-06-03 10:58:45 +0200 |
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committer | Liang Qi <liang.qi@theqtcompany.com> | 2015-06-03 10:58:45 +0200 |
commit | 6727ae3172aa7c3a791efd839ebefe24a4b8134c (patch) | |
tree | 63ecf158da5ba45bc5501e7bcaf7f57df2ed56f8 /src/3rdparty/libwebp/src/dsp/yuv_sse2.c | |
parent | 405bfa87e6f1c5b7fe89efa4b566f99d01375567 (diff) | |
parent | 454fb13c465e29f0d0f9a295bdb822b4a09c7e48 (diff) |
Merge remote-tracking branch 'origin/5.5' into dev
Change-Id: Id8a59a58c7e5ca2f977c1e7408ff05033a9cc16b
Diffstat (limited to 'src/3rdparty/libwebp/src/dsp/yuv_sse2.c')
-rw-r--r-- | src/3rdparty/libwebp/src/dsp/yuv_sse2.c | 322 |
1 files changed, 322 insertions, 0 deletions
diff --git a/src/3rdparty/libwebp/src/dsp/yuv_sse2.c b/src/3rdparty/libwebp/src/dsp/yuv_sse2.c new file mode 100644 index 0000000..6fe0f3b --- /dev/null +++ b/src/3rdparty/libwebp/src/dsp/yuv_sse2.c @@ -0,0 +1,322 @@ +// 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> +#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 + +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 + } +} + +#endif // WEBP_YUV_USE_SSE2_TABLES + +//----------------------------------------------------------------------------- + +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; +} + +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; +} + +static WEBP_INLINE __m128i GetRGBA32b(int y, int u, int v) { + const __m128i uv_part = LoadUVPart(u, v); + return GetRGBA32bWithUV(y, uv_part); +} + +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); +} + +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); +} + +//----------------------------------------------------------------------------- +// Convert spans of 32 pixels to various RGB formats for the fancy upsampler. + +#ifdef FANCY_UPSAMPLING + +void VP8YuvToRgba32(const uint8_t* y, const uint8_t* u, const uint8_t* v, + uint8_t* dst) { + 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; + } +} + +void VP8YuvToBgra32(const uint8_t* y, const uint8_t* u, const uint8_t* v, + uint8_t* dst) { + 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; + } +} + +void VP8YuvToRgb32(const uint8_t* y, const uint8_t* u, const uint8_t* v, + uint8_t* dst) { + 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); + } + // 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) { + 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); + } + 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 + +//----------------------------------------------------------------------------- +// 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) { + 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; + } + // Finish off + while (n < len) { + VP8YuvToRgba(y[0], u[0], v[0], dst); + dst += 4; + ++y; + 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) { + 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; + } + // Finish off + if (len & 1) { + VP8YuvToBgra(y[0], u[0], v[0], dst); + } +} + +static void YuvToArgbRowSSE2(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 += 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; + } + // Finish off + if (len & 1) { + VP8YuvToArgb(y[0], u[0], v[0], dst); + } +} + +static void YuvToRgbRowSSE2(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 + dst += 3; + ++y; + 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) { + 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 + dst += 3; + ++y; + 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 +} |