diff options
Diffstat (limited to 'src/3rdparty/libwebp/src/dsp/lossless_enc_sse41.c')
| -rw-r--r-- | src/3rdparty/libwebp/src/dsp/lossless_enc_sse41.c | 103 |
1 files changed, 99 insertions, 4 deletions
diff --git a/src/3rdparty/libwebp/src/dsp/lossless_enc_sse41.c b/src/3rdparty/libwebp/src/dsp/lossless_enc_sse41.c index 821057c..719d8ed 100644 --- a/src/3rdparty/libwebp/src/dsp/lossless_enc_sse41.c +++ b/src/3rdparty/libwebp/src/dsp/lossless_enc_sse41.c @@ -11,17 +11,21 @@ // // Author: Skal (pascal.massimino@gmail.com) -#include "./dsp.h" +#include "src/dsp/dsp.h" #if defined(WEBP_USE_SSE41) #include <assert.h> #include <smmintrin.h> -#include "./lossless.h" +#include "src/dsp/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) { +static void SubtractGreenFromBlueAndRed_SSE41(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); @@ -38,12 +42,103 @@ static void SubtractGreenFromBlueAndRed(uint32_t* argb_data, int num_pixels) { } //------------------------------------------------------------------------------ +// Color Transform + +#define SPAN 8 +static void CollectColorBlueTransforms_SSE41(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_set1_epi16(CST_5b(red_to_blue)); + const __m128i mults_g = _mm_set1_epi16(CST_5b(green_to_blue)); + const __m128i mask_g = _mm_set1_epi16((short)0xff00); // green mask + const __m128i mask_gb = _mm_set1_epi32(0xffff); // green/blue mask + const __m128i mask_b = _mm_set1_epi16(0x00ff); // blue mask + const __m128i shuffler_lo = _mm_setr_epi8(-1, 2, -1, 6, -1, 10, -1, 14, -1, + -1, -1, -1, -1, -1, -1, -1); + const __m128i shuffler_hi = _mm_setr_epi8(-1, -1, -1, -1, -1, -1, -1, -1, -1, + 2, -1, 6, -1, 10, -1, 14); + 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 r0 = _mm_shuffle_epi8(in0, shuffler_lo); + const __m128i r1 = _mm_shuffle_epi8(in1, shuffler_hi); + const __m128i r = _mm_or_si128(r0, r1); // r 0 + const __m128i gb0 = _mm_and_si128(in0, mask_gb); + const __m128i gb1 = _mm_and_si128(in1, mask_gb); + const __m128i gb = _mm_packus_epi32(gb0, gb1); // g b + const __m128i g = _mm_and_si128(gb, mask_g); // g 0 + const __m128i A = _mm_mulhi_epi16(r, mults_r); // x dbr + const __m128i B = _mm_mulhi_epi16(g, mults_g); // x dbg + const __m128i C = _mm_sub_epi8(gb, B); // x b' + const __m128i D = _mm_sub_epi8(C, A); // x b'' + const __m128i E = _mm_and_si128(D, mask_b); // 0 b'' + _mm_storeu_si128((__m128i*)values, E); + 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_SSE41(const uint32_t* argb, int stride, + int tile_width, int tile_height, + int green_to_red, int histo[]) { + const __m128i mults_g = _mm_set1_epi16(CST_5b(green_to_red)); + const __m128i mask_g = _mm_set1_epi32(0x00ff00); // green mask + const __m128i mask = _mm_set1_epi16(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 g0 = _mm_and_si128(in0, mask_g); // 0 0 | g 0 + const __m128i g1 = _mm_and_si128(in1, mask_g); + const __m128i g = _mm_packus_epi32(g0, g1); // g 0 + const __m128i A0 = _mm_srli_epi32(in0, 16); // 0 0 | x r + const __m128i A1 = _mm_srli_epi32(in1, 16); + const __m128i A = _mm_packus_epi32(A0, A1); // x r + const __m128i B = _mm_mulhi_epi16(g, mults_g); // x dr + const __m128i C = _mm_sub_epi8(A, B); // x r' + const __m128i D = _mm_and_si128(C, mask); // 0 r' + _mm_storeu_si128((__m128i*)values, D); + 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); + } + } +} + +//------------------------------------------------------------------------------ // Entry point extern void VP8LEncDspInitSSE41(void); WEBP_TSAN_IGNORE_FUNCTION void VP8LEncDspInitSSE41(void) { - VP8LSubtractGreenFromBlueAndRed = SubtractGreenFromBlueAndRed; + VP8LSubtractGreenFromBlueAndRed = SubtractGreenFromBlueAndRed_SSE41; + VP8LCollectColorBlueTransforms = CollectColorBlueTransforms_SSE41; + VP8LCollectColorRedTransforms = CollectColorRedTransforms_SSE41; } #else // !WEBP_USE_SSE41 |