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faster CollectColorXXXTransforms_SSE41
3/4% faster overall. Change-Id: If555c5530238ca0342b8d97b0d708b1bdc888d3f
This commit is contained in:
Ilya Kurdyukov
Skal
parent
652aa34424
commit
01b38ee19a
@ -44,46 +44,47 @@ static void SubtractGreenFromBlueAndRed_SSE41(uint32_t* argb_data,
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//------------------------------------------------------------------------------
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// Color Transform
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#define SPAN 8
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#define MK_CST_16(HI, LO) \
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_mm_set1_epi32((int)(((uint32_t)(HI) << 16) | ((LO) & 0xffff)))
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static void CollectColorBlueTransforms_SSE41(const uint32_t* argb, int stride,
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int tile_width, int tile_height,
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int green_to_blue, int red_to_blue,
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int histo[]) {
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const __m128i mults_r = _mm_set1_epi16(CST_5b(red_to_blue));
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const __m128i mults_g = _mm_set1_epi16(CST_5b(green_to_blue));
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const __m128i mask_g = _mm_set1_epi16((short)0xff00); // green mask
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const __m128i mask_gb = _mm_set1_epi32(0xffff); // green/blue mask
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const __m128i mask_b = _mm_set1_epi16(0x00ff); // blue mask
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const __m128i shuffler_lo = _mm_setr_epi8(-1, 2, -1, 6, -1, 10, -1, 14, -1,
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-1, -1, -1, -1, -1, -1, -1);
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const __m128i shuffler_hi = _mm_setr_epi8(-1, -1, -1, -1, -1, -1, -1, -1, -1,
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2, -1, 6, -1, 10, -1, 14);
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const __m128i mult =
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MK_CST_16(CST_5b(red_to_blue) + 256,CST_5b(green_to_blue));
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const __m128i perm =
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_mm_setr_epi8(-1, 1, -1, 2, -1, 5, -1, 6, -1, 9, -1, 10, -1, 13, -1, 14);
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if (tile_width >= 4) {
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int y;
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for (y = 0; y < tile_height; ++y) {
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const uint32_t* const src = argb + y * stride;
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int i, x;
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for (x = 0; x + SPAN <= tile_width; x += SPAN) {
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uint16_t values[SPAN];
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const __m128i in0 = _mm_loadu_si128((__m128i*)&src[x + 0]);
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const __m128i in1 = _mm_loadu_si128((__m128i*)&src[x + SPAN / 2]);
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const __m128i r0 = _mm_shuffle_epi8(in0, shuffler_lo);
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const __m128i r1 = _mm_shuffle_epi8(in1, shuffler_hi);
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const __m128i r = _mm_or_si128(r0, r1); // r 0
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const __m128i gb0 = _mm_and_si128(in0, mask_gb);
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const __m128i gb1 = _mm_and_si128(in1, mask_gb);
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const __m128i gb = _mm_packus_epi32(gb0, gb1); // g b
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const __m128i g = _mm_and_si128(gb, mask_g); // g 0
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const __m128i A = _mm_mulhi_epi16(r, mults_r); // x dbr
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const __m128i B = _mm_mulhi_epi16(g, mults_g); // x dbg
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const __m128i C = _mm_sub_epi8(gb, B); // x b'
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const __m128i D = _mm_sub_epi8(C, A); // x b''
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const __m128i E = _mm_and_si128(D, mask_b); // 0 b''
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_mm_storeu_si128((__m128i*)values, E);
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for (i = 0; i < SPAN; ++i) ++histo[values[i]];
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const __m128i A1 = _mm_loadu_si128((const __m128i*)src);
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const __m128i B1 = _mm_shuffle_epi8(A1, perm);
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const __m128i C1 = _mm_mulhi_epi16(B1, mult);
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const __m128i D1 = _mm_sub_epi16(A1, C1);
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__m128i E = _mm_add_epi16(_mm_srli_epi32(D1, 16), D1);
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int x;
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for (x = 4; x + 4 <= tile_width; x += 4) {
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const __m128i A2 = _mm_loadu_si128((const __m128i*)(src + x));
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__m128i B2, C2, D2;
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++histo[_mm_extract_epi8(E, 0)];
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B2 = _mm_shuffle_epi8(A2, perm);
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++histo[_mm_extract_epi8(E, 4)];
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C2 = _mm_mulhi_epi16(B2, mult);
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++histo[_mm_extract_epi8(E, 8)];
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D2 = _mm_sub_epi16(A2, C2);
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++histo[_mm_extract_epi8(E, 12)];
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E = _mm_add_epi16(_mm_srli_epi32(D2, 16), D2);
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}
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++histo[_mm_extract_epi8(E, 0)];
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++histo[_mm_extract_epi8(E, 4)];
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++histo[_mm_extract_epi8(E, 8)];
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++histo[_mm_extract_epi8(E, 12)];
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}
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}
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{
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const int left_over = tile_width & (SPAN - 1);
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const int left_over = tile_width & 3;
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if (left_over > 0) {
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VP8LCollectColorBlueTransforms_C(argb + tile_width - left_over, stride,
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left_over, tile_height,
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@ -95,33 +96,37 @@ static void CollectColorBlueTransforms_SSE41(const uint32_t* argb, int stride,
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static void CollectColorRedTransforms_SSE41(const uint32_t* argb, int stride,
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int tile_width, int tile_height,
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int green_to_red, int histo[]) {
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const __m128i mults_g = _mm_set1_epi16(CST_5b(green_to_red));
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const __m128i mask_g = _mm_set1_epi32(0x00ff00); // green mask
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const __m128i mask = _mm_set1_epi16(0xff);
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const __m128i mult = MK_CST_16(0, CST_5b(green_to_red));
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const __m128i mask_g = _mm_set1_epi32(0x0000ff00);
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if (tile_width >= 4) {
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int y;
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for (y = 0; y < tile_height; ++y) {
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const uint32_t* const src = argb + y * stride;
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int i, x;
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for (x = 0; x + SPAN <= tile_width; x += SPAN) {
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uint16_t values[SPAN];
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const __m128i in0 = _mm_loadu_si128((__m128i*)&src[x + 0]);
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const __m128i in1 = _mm_loadu_si128((__m128i*)&src[x + SPAN / 2]);
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const __m128i g0 = _mm_and_si128(in0, mask_g); // 0 0 | g 0
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const __m128i g1 = _mm_and_si128(in1, mask_g);
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const __m128i g = _mm_packus_epi32(g0, g1); // g 0
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const __m128i A0 = _mm_srli_epi32(in0, 16); // 0 0 | x r
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const __m128i A1 = _mm_srli_epi32(in1, 16);
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const __m128i A = _mm_packus_epi32(A0, A1); // x r
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const __m128i B = _mm_mulhi_epi16(g, mults_g); // x dr
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const __m128i C = _mm_sub_epi8(A, B); // x r'
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const __m128i D = _mm_and_si128(C, mask); // 0 r'
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_mm_storeu_si128((__m128i*)values, D);
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for (i = 0; i < SPAN; ++i) ++histo[values[i]];
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const __m128i A1 = _mm_loadu_si128((const __m128i*)src);
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const __m128i B1 = _mm_and_si128(A1, mask_g);
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const __m128i C1 = _mm_madd_epi16(B1, mult);
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__m128i D = _mm_sub_epi16(A1, C1);
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int x;
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for (x = 4; x + 4 <= tile_width; x += 4) {
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const __m128i A2 = _mm_loadu_si128((const __m128i*)(src + x));
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__m128i B2, C2;
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++histo[_mm_extract_epi8(D, 2)];
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B2 = _mm_and_si128(A2, mask_g);
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++histo[_mm_extract_epi8(D, 6)];
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C2 = _mm_madd_epi16(B2, mult);
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++histo[_mm_extract_epi8(D, 10)];
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++histo[_mm_extract_epi8(D, 14)];
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D = _mm_sub_epi16(A2, C2);
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}
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++histo[_mm_extract_epi8(D, 2)];
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++histo[_mm_extract_epi8(D, 6)];
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++histo[_mm_extract_epi8(D, 10)];
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++histo[_mm_extract_epi8(D, 14)];
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}
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}
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{
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const int left_over = tile_width & (SPAN - 1);
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const int left_over = tile_width & 3;
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if (left_over > 0) {
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VP8LCollectColorRedTransforms_C(argb + tile_width - left_over, stride,
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left_over, tile_height, green_to_red,
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@ -130,6 +135,8 @@ static void CollectColorRedTransforms_SSE41(const uint32_t* argb, int stride,
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}
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}
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#undef MK_CST_16
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//------------------------------------------------------------------------------
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// Entry point
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