diff options
Diffstat (limited to 'third_party/aom/aom_dsp/x86/aom_subpixel_8t_intrin_avx2.c')
| -rw-r--r-- | third_party/aom/aom_dsp/x86/aom_subpixel_8t_intrin_avx2.c | 619 |
1 files changed, 477 insertions, 142 deletions
diff --git a/third_party/aom/aom_dsp/x86/aom_subpixel_8t_intrin_avx2.c b/third_party/aom/aom_dsp/x86/aom_subpixel_8t_intrin_avx2.c index af45a03ac..f3fe50372 100644 --- a/third_party/aom/aom_dsp/x86/aom_subpixel_8t_intrin_avx2.c +++ b/third_party/aom/aom_dsp/x86/aom_subpixel_8t_intrin_avx2.c @@ -41,20 +41,290 @@ #define MM256_BROADCASTSI128_SI256(x) _mm256_broadcastsi128_si256(x) #endif // __clang__ +static INLINE void xx_storeu2_epi32(const uint8_t *output_ptr, + const ptrdiff_t stride, const __m256i *a) { + *((uint32_t *)(output_ptr)) = _mm_cvtsi128_si32(_mm256_castsi256_si128(*a)); + *((uint32_t *)(output_ptr + stride)) = + _mm_cvtsi128_si32(_mm256_extracti128_si256(*a, 1)); +} + +static INLINE __m256i xx_loadu2_epi64(const void *hi, const void *lo) { + __m256i a = _mm256_castsi128_si256(_mm_loadl_epi64((const __m128i *)(lo))); + a = _mm256_inserti128_si256(a, _mm_loadl_epi64((const __m128i *)(hi)), 1); + return a; +} + +static INLINE void xx_storeu2_epi64(const uint8_t *output_ptr, + const ptrdiff_t stride, const __m256i *a) { + _mm_storel_epi64((__m128i *)output_ptr, _mm256_castsi256_si128(*a)); + _mm_storel_epi64((__m128i *)(output_ptr + stride), + _mm256_extractf128_si256(*a, 1)); +} + +static INLINE __m256i xx_loadu2_mi128(const void *hi, const void *lo) { + __m256i a = _mm256_castsi128_si256(_mm_loadu_si128((const __m128i *)(lo))); + a = _mm256_inserti128_si256(a, _mm_loadu_si128((const __m128i *)(hi)), 1); + return a; +} + +static INLINE void xx_store2_mi128(const uint8_t *output_ptr, + const ptrdiff_t stride, const __m256i *a) { + _mm_store_si128((__m128i *)output_ptr, _mm256_castsi256_si128(*a)); + _mm_store_si128((__m128i *)(output_ptr + stride), + _mm256_extractf128_si256(*a, 1)); +} + +static void aom_filter_block1d4_h8_avx2( + const uint8_t *src_ptr, ptrdiff_t src_pixels_per_line, uint8_t *output_ptr, + ptrdiff_t output_pitch, uint32_t output_height, const int16_t *filter) { + __m128i filtersReg; + __m256i addFilterReg32, filt1Reg, filt2Reg; + __m256i firstFilters, secondFilters; + __m256i srcRegFilt32b1_1, srcRegFilt32b2; + __m256i srcReg32b1; + unsigned int i; + ptrdiff_t src_stride, dst_stride; + src_ptr -= 3; + addFilterReg32 = _mm256_set1_epi16(32); + filtersReg = _mm_loadu_si128((const __m128i *)filter); + filtersReg = _mm_srai_epi16(filtersReg, 1); + // converting the 16 bit (short) to 8 bit (byte) and have the same data + // in both lanes of 128 bit register. + filtersReg = _mm_packs_epi16(filtersReg, filtersReg); + // have the same data in both lanes of a 256 bit register + const __m256i filtersReg32 = MM256_BROADCASTSI128_SI256(filtersReg); + + // duplicate only the first 32 bits + firstFilters = _mm256_shuffle_epi32(filtersReg32, 0); + // duplicate only the second 32 bits + secondFilters = _mm256_shuffle_epi32(filtersReg32, 0x55); + + filt1Reg = _mm256_load_si256((__m256i const *)filt_d4_global_avx2); + filt2Reg = _mm256_load_si256((__m256i const *)(filt_d4_global_avx2 + 32)); + + // multiple the size of the source and destination stride by two + src_stride = src_pixels_per_line << 1; + dst_stride = output_pitch << 1; + for (i = output_height; i > 1; i -= 2) { + // load the 2 strides of source + srcReg32b1 = xx_loadu2_mi128(src_ptr + src_pixels_per_line, src_ptr); + + // filter the source buffer + srcRegFilt32b1_1 = _mm256_shuffle_epi8(srcReg32b1, filt1Reg); + + // multiply 4 adjacent elements with the filter and add the result + srcRegFilt32b1_1 = _mm256_maddubs_epi16(srcRegFilt32b1_1, firstFilters); + + // filter the source buffer + srcRegFilt32b2 = _mm256_shuffle_epi8(srcReg32b1, filt2Reg); + + // multiply 4 adjacent elements with the filter and add the result + srcRegFilt32b2 = _mm256_maddubs_epi16(srcRegFilt32b2, secondFilters); + + srcRegFilt32b1_1 = _mm256_adds_epi16(srcRegFilt32b1_1, srcRegFilt32b2); + + srcRegFilt32b1_1 = + _mm256_hadds_epi16(srcRegFilt32b1_1, _mm256_setzero_si256()); + + // shift by 6 bit each 16 bit + srcRegFilt32b1_1 = _mm256_adds_epi16(srcRegFilt32b1_1, addFilterReg32); + srcRegFilt32b1_1 = _mm256_srai_epi16(srcRegFilt32b1_1, 6); + + // shrink to 8 bit each 16 bits, the first lane contain the first + // convolve result and the second lane contain the second convolve result + srcRegFilt32b1_1 = + _mm256_packus_epi16(srcRegFilt32b1_1, _mm256_setzero_si256()); + + src_ptr += src_stride; + + xx_storeu2_epi32(output_ptr, output_pitch, &srcRegFilt32b1_1); + output_ptr += dst_stride; + } + + // if the number of strides is odd. + // process only 4 bytes + if (i > 0) { + __m128i srcReg1, srcRegFilt1_1; + __m128i srcRegFilt2; + + srcReg1 = _mm_loadu_si128((const __m128i *)(src_ptr)); + + // filter the source buffer + srcRegFilt1_1 = _mm_shuffle_epi8(srcReg1, _mm256_castsi256_si128(filt1Reg)); + + // multiply 4 adjacent elements with the filter and add the result + srcRegFilt1_1 = + _mm_maddubs_epi16(srcRegFilt1_1, _mm256_castsi256_si128(firstFilters)); + + // filter the source buffer + srcRegFilt2 = _mm_shuffle_epi8(srcReg1, _mm256_castsi256_si128(filt2Reg)); + + // multiply 4 adjacent elements with the filter and add the result + srcRegFilt2 = + _mm_maddubs_epi16(srcRegFilt2, _mm256_castsi256_si128(secondFilters)); + + srcRegFilt1_1 = _mm_adds_epi16(srcRegFilt1_1, srcRegFilt2); + srcRegFilt1_1 = _mm_hadds_epi16(srcRegFilt1_1, _mm_setzero_si128()); + // shift by 6 bit each 16 bit + srcRegFilt1_1 = + _mm_adds_epi16(srcRegFilt1_1, _mm256_castsi256_si128(addFilterReg32)); + srcRegFilt1_1 = _mm_srai_epi16(srcRegFilt1_1, 6); + + // shrink to 8 bit each 16 bits, the first lane contain the first + // convolve result and the second lane contain the second convolve result + srcRegFilt1_1 = _mm_packus_epi16(srcRegFilt1_1, _mm_setzero_si128()); + + // save 4 bytes + *((uint32_t *)(output_ptr)) = _mm_cvtsi128_si32(srcRegFilt1_1); + } +} + +static void aom_filter_block1d8_h8_avx2( + const uint8_t *src_ptr, ptrdiff_t src_pixels_per_line, uint8_t *output_ptr, + ptrdiff_t output_pitch, uint32_t output_height, const int16_t *filter) { + __m128i filtersReg; + __m256i addFilterReg32, filt1Reg, filt2Reg, filt3Reg, filt4Reg; + __m256i firstFilters, secondFilters, thirdFilters, forthFilters; + __m256i srcRegFilt32b1_1, srcRegFilt32b2, srcRegFilt32b3; + __m256i srcReg32b1; + unsigned int i; + ptrdiff_t src_stride, dst_stride; + src_ptr -= 3; + addFilterReg32 = _mm256_set1_epi16(32); + filtersReg = _mm_loadu_si128((const __m128i *)filter); + filtersReg = _mm_srai_epi16(filtersReg, 1); + // converting the 16 bit (short) to 8 bit (byte) and have the same data + // in both lanes of 128 bit register. + filtersReg = _mm_packs_epi16(filtersReg, filtersReg); + // have the same data in both lanes of a 256 bit register + const __m256i filtersReg32 = MM256_BROADCASTSI128_SI256(filtersReg); + + // duplicate only the first 16 bits (first and second byte) + // across 256 bit register + firstFilters = _mm256_shuffle_epi8(filtersReg32, _mm256_set1_epi16(0x100u)); + // duplicate only the second 16 bits (third and forth byte) + // across 256 bit register + secondFilters = _mm256_shuffle_epi8(filtersReg32, _mm256_set1_epi16(0x302u)); + // duplicate only the third 16 bits (fifth and sixth byte) + // across 256 bit register + thirdFilters = _mm256_shuffle_epi8(filtersReg32, _mm256_set1_epi16(0x504u)); + // duplicate only the forth 16 bits (seventh and eighth byte) + // across 256 bit register + forthFilters = _mm256_shuffle_epi8(filtersReg32, _mm256_set1_epi16(0x706u)); + + filt1Reg = _mm256_load_si256((__m256i const *)filt_global_avx2); + filt2Reg = _mm256_load_si256((__m256i const *)(filt_global_avx2 + 32)); + filt3Reg = _mm256_load_si256((__m256i const *)(filt_global_avx2 + 32 * 2)); + filt4Reg = _mm256_load_si256((__m256i const *)(filt_global_avx2 + 32 * 3)); + + // multiple the size of the source and destination stride by two + src_stride = src_pixels_per_line << 1; + dst_stride = output_pitch << 1; + for (i = output_height; i > 1; i -= 2) { + // load the 2 strides of source + srcReg32b1 = xx_loadu2_mi128(src_ptr + src_pixels_per_line, src_ptr); + + // filter the source buffer + srcRegFilt32b1_1 = _mm256_shuffle_epi8(srcReg32b1, filt1Reg); + srcRegFilt32b2 = _mm256_shuffle_epi8(srcReg32b1, filt4Reg); + + // multiply 2 adjacent elements with the filter and add the result + srcRegFilt32b1_1 = _mm256_maddubs_epi16(srcRegFilt32b1_1, firstFilters); + srcRegFilt32b2 = _mm256_maddubs_epi16(srcRegFilt32b2, forthFilters); + + // add and saturate the results together + srcRegFilt32b1_1 = _mm256_adds_epi16(srcRegFilt32b1_1, srcRegFilt32b2); + + // filter the source buffer + srcRegFilt32b3 = _mm256_shuffle_epi8(srcReg32b1, filt2Reg); + srcRegFilt32b2 = _mm256_shuffle_epi8(srcReg32b1, filt3Reg); + + // multiply 2 adjacent elements with the filter and add the result + srcRegFilt32b3 = _mm256_maddubs_epi16(srcRegFilt32b3, secondFilters); + srcRegFilt32b2 = _mm256_maddubs_epi16(srcRegFilt32b2, thirdFilters); + + __m256i sum23 = _mm256_adds_epi16(srcRegFilt32b3, srcRegFilt32b2); + srcRegFilt32b1_1 = _mm256_adds_epi16(srcRegFilt32b1_1, sum23); + + // shift by 6 bit each 16 bit + srcRegFilt32b1_1 = _mm256_adds_epi16(srcRegFilt32b1_1, addFilterReg32); + srcRegFilt32b1_1 = _mm256_srai_epi16(srcRegFilt32b1_1, 6); + + // shrink to 8 bit each 16 bits, the first lane contain the first + // convolve result and the second lane contain the second convolve result + srcRegFilt32b1_1 = + _mm256_packus_epi16(srcRegFilt32b1_1, _mm256_setzero_si256()); + + src_ptr += src_stride; + + xx_storeu2_epi64(output_ptr, output_pitch, &srcRegFilt32b1_1); + output_ptr += dst_stride; + } + + // if the number of strides is odd. + // process only 8 bytes + if (i > 0) { + __m128i srcReg1, srcRegFilt1_1; + __m128i srcRegFilt2, srcRegFilt3; + + srcReg1 = _mm_loadu_si128((const __m128i *)(src_ptr)); + + // filter the source buffer + srcRegFilt1_1 = _mm_shuffle_epi8(srcReg1, _mm256_castsi256_si128(filt1Reg)); + srcRegFilt2 = _mm_shuffle_epi8(srcReg1, _mm256_castsi256_si128(filt4Reg)); + + // multiply 2 adjacent elements with the filter and add the result + srcRegFilt1_1 = + _mm_maddubs_epi16(srcRegFilt1_1, _mm256_castsi256_si128(firstFilters)); + srcRegFilt2 = + _mm_maddubs_epi16(srcRegFilt2, _mm256_castsi256_si128(forthFilters)); + + // add and saturate the results together + srcRegFilt1_1 = _mm_adds_epi16(srcRegFilt1_1, srcRegFilt2); + + // filter the source buffer + srcRegFilt3 = _mm_shuffle_epi8(srcReg1, _mm256_castsi256_si128(filt2Reg)); + srcRegFilt2 = _mm_shuffle_epi8(srcReg1, _mm256_castsi256_si128(filt3Reg)); + + // multiply 2 adjacent elements with the filter and add the result + srcRegFilt3 = + _mm_maddubs_epi16(srcRegFilt3, _mm256_castsi256_si128(secondFilters)); + srcRegFilt2 = + _mm_maddubs_epi16(srcRegFilt2, _mm256_castsi256_si128(thirdFilters)); + + // add and saturate the results together + srcRegFilt1_1 = + _mm_adds_epi16(srcRegFilt1_1, _mm_adds_epi16(srcRegFilt3, srcRegFilt2)); + + // shift by 6 bit each 16 bit + srcRegFilt1_1 = + _mm_adds_epi16(srcRegFilt1_1, _mm256_castsi256_si128(addFilterReg32)); + srcRegFilt1_1 = _mm_srai_epi16(srcRegFilt1_1, 6); + + // shrink to 8 bit each 16 bits, the first lane contain the first + // convolve result and the second lane contain the second convolve + // result + srcRegFilt1_1 = _mm_packus_epi16(srcRegFilt1_1, _mm_setzero_si128()); + + // save 8 bytes + _mm_storel_epi64((__m128i *)output_ptr, srcRegFilt1_1); + } +} + static void aom_filter_block1d16_h8_avx2( const uint8_t *src_ptr, ptrdiff_t src_pixels_per_line, uint8_t *output_ptr, ptrdiff_t output_pitch, uint32_t output_height, const int16_t *filter) { __m128i filtersReg; - __m256i addFilterReg64, filt1Reg, filt2Reg, filt3Reg, filt4Reg; + __m256i addFilterReg32, filt1Reg, filt2Reg, filt3Reg, filt4Reg; __m256i firstFilters, secondFilters, thirdFilters, forthFilters; __m256i srcRegFilt32b1_1, srcRegFilt32b2_1, srcRegFilt32b2, srcRegFilt32b3; __m256i srcReg32b1, srcReg32b2, filtersReg32; unsigned int i; ptrdiff_t src_stride, dst_stride; - - // create a register with 0,64,0,64,0,64,0,64,0,64,0,64,0,64,0,64 - addFilterReg64 = _mm256_set1_epi32((int)0x0400040u); + src_ptr -= 3; + addFilterReg32 = _mm256_set1_epi16(32); filtersReg = _mm_loadu_si128((const __m128i *)filter); + filtersReg = _mm_srai_epi16(filtersReg, 1); // converting the 16 bit (short) to 8 bit (byte) and have the same data // in both lanes of 128 bit register. filtersReg = _mm_packs_epi16(filtersReg, filtersReg); @@ -74,22 +344,17 @@ static void aom_filter_block1d16_h8_avx2( // across 256 bit register forthFilters = _mm256_shuffle_epi8(filtersReg32, _mm256_set1_epi16(0x706u)); - filt1Reg = _mm256_load_si256((__m256i const *)filt1_global_avx2); - filt2Reg = _mm256_load_si256((__m256i const *)filt2_global_avx2); - filt3Reg = _mm256_load_si256((__m256i const *)filt3_global_avx2); - filt4Reg = _mm256_load_si256((__m256i const *)filt4_global_avx2); + filt1Reg = _mm256_load_si256((__m256i const *)filt_global_avx2); + filt2Reg = _mm256_load_si256((__m256i const *)(filt_global_avx2 + 32)); + filt3Reg = _mm256_load_si256((__m256i const *)(filt_global_avx2 + 32 * 2)); + filt4Reg = _mm256_load_si256((__m256i const *)(filt_global_avx2 + 32 * 3)); // multiple the size of the source and destination stride by two src_stride = src_pixels_per_line << 1; dst_stride = output_pitch << 1; for (i = output_height; i > 1; i -= 2) { // load the 2 strides of source - srcReg32b1 = - _mm256_castsi128_si256(_mm_loadu_si128((const __m128i *)(src_ptr - 3))); - srcReg32b1 = _mm256_inserti128_si256( - srcReg32b1, - _mm_loadu_si128((const __m128i *)(src_ptr + src_pixels_per_line - 3)), - 1); + srcReg32b1 = xx_loadu2_mi128(src_ptr + src_pixels_per_line, src_ptr); // filter the source buffer srcRegFilt32b1_1 = _mm256_shuffle_epi8(srcReg32b1, filt1Reg); @@ -110,22 +375,13 @@ static void aom_filter_block1d16_h8_avx2( srcRegFilt32b3 = _mm256_maddubs_epi16(srcRegFilt32b3, secondFilters); srcRegFilt32b2 = _mm256_maddubs_epi16(srcRegFilt32b2, thirdFilters); - // add and saturate the results together - srcRegFilt32b1_1 = _mm256_adds_epi16( - srcRegFilt32b1_1, _mm256_min_epi16(srcRegFilt32b3, srcRegFilt32b2)); + __m256i sum23 = _mm256_adds_epi16(srcRegFilt32b3, srcRegFilt32b2); + srcRegFilt32b1_1 = _mm256_adds_epi16(srcRegFilt32b1_1, sum23); // reading 2 strides of the next 16 bytes // (part of it was being read by earlier read) srcReg32b2 = - _mm256_castsi128_si256(_mm_loadu_si128((const __m128i *)(src_ptr + 5))); - srcReg32b2 = _mm256_inserti128_si256( - srcReg32b2, - _mm_loadu_si128((const __m128i *)(src_ptr + src_pixels_per_line + 5)), - 1); - - // add and saturate the results together - srcRegFilt32b1_1 = _mm256_adds_epi16( - srcRegFilt32b1_1, _mm256_max_epi16(srcRegFilt32b3, srcRegFilt32b2)); + xx_loadu2_mi128(src_ptr + src_pixels_per_line + 8, src_ptr + 8); // filter the source buffer srcRegFilt32b2_1 = _mm256_shuffle_epi8(srcReg32b2, filt1Reg); @@ -148,32 +404,21 @@ static void aom_filter_block1d16_h8_avx2( // add and saturate the results together srcRegFilt32b2_1 = _mm256_adds_epi16( - srcRegFilt32b2_1, _mm256_min_epi16(srcRegFilt32b3, srcRegFilt32b2)); - srcRegFilt32b2_1 = _mm256_adds_epi16( - srcRegFilt32b2_1, _mm256_max_epi16(srcRegFilt32b3, srcRegFilt32b2)); - - srcRegFilt32b1_1 = _mm256_adds_epi16(srcRegFilt32b1_1, addFilterReg64); + srcRegFilt32b2_1, _mm256_adds_epi16(srcRegFilt32b3, srcRegFilt32b2)); - srcRegFilt32b2_1 = _mm256_adds_epi16(srcRegFilt32b2_1, addFilterReg64); - - // shift by 7 bit each 16 bit - srcRegFilt32b1_1 = _mm256_srai_epi16(srcRegFilt32b1_1, 7); - srcRegFilt32b2_1 = _mm256_srai_epi16(srcRegFilt32b2_1, 7); + // shift by 6 bit each 16 bit + srcRegFilt32b1_1 = _mm256_adds_epi16(srcRegFilt32b1_1, addFilterReg32); + srcRegFilt32b2_1 = _mm256_adds_epi16(srcRegFilt32b2_1, addFilterReg32); + srcRegFilt32b1_1 = _mm256_srai_epi16(srcRegFilt32b1_1, 6); + srcRegFilt32b2_1 = _mm256_srai_epi16(srcRegFilt32b2_1, 6); // shrink to 8 bit each 16 bits, the first lane contain the first - // convolve result and the second lane contain the second convolve - // result + // convolve result and the second lane contain the second convolve result srcRegFilt32b1_1 = _mm256_packus_epi16(srcRegFilt32b1_1, srcRegFilt32b2_1); src_ptr += src_stride; - // save 16 bytes - _mm_store_si128((__m128i *)output_ptr, - _mm256_castsi256_si128(srcRegFilt32b1_1)); - - // save the next 16 bits - _mm_store_si128((__m128i *)(output_ptr + output_pitch), - _mm256_extractf128_si256(srcRegFilt32b1_1, 1)); + xx_store2_mi128(output_ptr, output_pitch, &srcRegFilt32b1_1); output_ptr += dst_stride; } @@ -183,7 +428,7 @@ static void aom_filter_block1d16_h8_avx2( __m128i srcReg1, srcReg2, srcRegFilt1_1, srcRegFilt2_1; __m128i srcRegFilt2, srcRegFilt3; - srcReg1 = _mm_loadu_si128((const __m128i *)(src_ptr - 3)); + srcReg1 = _mm_loadu_si128((const __m128i *)(src_ptr)); // filter the source buffer srcRegFilt1_1 = _mm_shuffle_epi8(srcReg1, _mm256_castsi256_si128(filt1Reg)); @@ -210,15 +455,11 @@ static void aom_filter_block1d16_h8_avx2( // add and saturate the results together srcRegFilt1_1 = - _mm_adds_epi16(srcRegFilt1_1, _mm_min_epi16(srcRegFilt3, srcRegFilt2)); + _mm_adds_epi16(srcRegFilt1_1, _mm_adds_epi16(srcRegFilt3, srcRegFilt2)); // reading the next 16 bytes // (part of it was being read by earlier read) - srcReg2 = _mm_loadu_si128((const __m128i *)(src_ptr + 5)); - - // add and saturate the results together - srcRegFilt1_1 = - _mm_adds_epi16(srcRegFilt1_1, _mm_max_epi16(srcRegFilt3, srcRegFilt2)); + srcReg2 = _mm_loadu_si128((const __m128i *)(src_ptr + 8)); // filter the source buffer srcRegFilt2_1 = _mm_shuffle_epi8(srcReg2, _mm256_castsi256_si128(filt1Reg)); @@ -245,19 +486,16 @@ static void aom_filter_block1d16_h8_avx2( // add and saturate the results together srcRegFilt2_1 = - _mm_adds_epi16(srcRegFilt2_1, _mm_min_epi16(srcRegFilt3, srcRegFilt2)); - srcRegFilt2_1 = - _mm_adds_epi16(srcRegFilt2_1, _mm_max_epi16(srcRegFilt3, srcRegFilt2)); + _mm_adds_epi16(srcRegFilt2_1, _mm_adds_epi16(srcRegFilt3, srcRegFilt2)); + // shift by 6 bit each 16 bit srcRegFilt1_1 = - _mm_adds_epi16(srcRegFilt1_1, _mm256_castsi256_si128(addFilterReg64)); + _mm_adds_epi16(srcRegFilt1_1, _mm256_castsi256_si128(addFilterReg32)); + srcRegFilt1_1 = _mm_srai_epi16(srcRegFilt1_1, 6); srcRegFilt2_1 = - _mm_adds_epi16(srcRegFilt2_1, _mm256_castsi256_si128(addFilterReg64)); - - // shift by 7 bit each 16 bit - srcRegFilt1_1 = _mm_srai_epi16(srcRegFilt1_1, 7); - srcRegFilt2_1 = _mm_srai_epi16(srcRegFilt2_1, 7); + _mm_adds_epi16(srcRegFilt2_1, _mm256_castsi256_si128(addFilterReg32)); + srcRegFilt2_1 = _mm_srai_epi16(srcRegFilt2_1, 6); // shrink to 8 bit each 16 bits, the first lane contain the first // convolve result and the second lane contain the second convolve @@ -269,11 +507,163 @@ static void aom_filter_block1d16_h8_avx2( } } +static void aom_filter_block1d8_v8_avx2( + const uint8_t *src_ptr, ptrdiff_t src_pitch, uint8_t *output_ptr, + ptrdiff_t out_pitch, uint32_t output_height, const int16_t *filter) { + __m128i filtersReg; + __m256i addFilterReg32; + __m256i srcReg32b1, srcReg32b2, srcReg32b3, srcReg32b4, srcReg32b5; + __m256i srcReg32b6, srcReg32b7, srcReg32b8, srcReg32b9, srcReg32b10; + __m256i srcReg32b11, srcReg32b12, filtersReg32; + __m256i firstFilters, secondFilters, thirdFilters, forthFilters; + unsigned int i; + ptrdiff_t src_stride, dst_stride; + + addFilterReg32 = _mm256_set1_epi16(32); + filtersReg = _mm_loadu_si128((const __m128i *)filter); + // converting the 16 bit (short) to 8 bit (byte) and have the + // same data in both lanes of 128 bit register. + filtersReg = _mm_srai_epi16(filtersReg, 1); + filtersReg = _mm_packs_epi16(filtersReg, filtersReg); + // have the same data in both lanes of a 256 bit register + filtersReg32 = MM256_BROADCASTSI128_SI256(filtersReg); + + // duplicate only the first 16 bits (first and second byte) + // across 256 bit register + firstFilters = _mm256_shuffle_epi8(filtersReg32, _mm256_set1_epi16(0x100u)); + // duplicate only the second 16 bits (third and forth byte) + // across 256 bit register + secondFilters = _mm256_shuffle_epi8(filtersReg32, _mm256_set1_epi16(0x302u)); + // duplicate only the third 16 bits (fifth and sixth byte) + // across 256 bit register + thirdFilters = _mm256_shuffle_epi8(filtersReg32, _mm256_set1_epi16(0x504u)); + // duplicate only the forth 16 bits (seventh and eighth byte) + // across 256 bit register + forthFilters = _mm256_shuffle_epi8(filtersReg32, _mm256_set1_epi16(0x706u)); + + // multiple the size of the source and destination stride by two + src_stride = src_pitch << 1; + dst_stride = out_pitch << 1; + + // load 16 bytes 7 times in stride of src_pitch + srcReg32b1 = xx_loadu2_epi64(src_ptr + src_pitch, src_ptr); + srcReg32b3 = + xx_loadu2_epi64(src_ptr + src_pitch * 3, src_ptr + src_pitch * 2); + srcReg32b5 = + xx_loadu2_epi64(src_ptr + src_pitch * 5, src_ptr + src_pitch * 4); + srcReg32b7 = _mm256_castsi128_si256( + _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 6))); + + // have each consecutive loads on the same 256 register + srcReg32b2 = _mm256_permute2x128_si256(srcReg32b1, srcReg32b3, 0x21); + srcReg32b4 = _mm256_permute2x128_si256(srcReg32b3, srcReg32b5, 0x21); + srcReg32b6 = _mm256_permute2x128_si256(srcReg32b5, srcReg32b7, 0x21); + // merge every two consecutive registers except the last one + srcReg32b10 = _mm256_unpacklo_epi8(srcReg32b1, srcReg32b2); + srcReg32b11 = _mm256_unpacklo_epi8(srcReg32b3, srcReg32b4); + srcReg32b2 = _mm256_unpacklo_epi8(srcReg32b5, srcReg32b6); + + for (i = output_height; i > 1; i -= 2) { + // load the last 2 loads of 16 bytes and have every two + // consecutive loads in the same 256 bit register + srcReg32b8 = _mm256_castsi128_si256( + _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 7))); + srcReg32b7 = _mm256_inserti128_si256(srcReg32b7, + _mm256_castsi256_si128(srcReg32b8), 1); + srcReg32b9 = _mm256_castsi128_si256( + _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 8))); + srcReg32b8 = _mm256_inserti128_si256(srcReg32b8, + _mm256_castsi256_si128(srcReg32b9), 1); + + // merge every two consecutive registers + // save + srcReg32b4 = _mm256_unpacklo_epi8(srcReg32b7, srcReg32b8); + + // multiply 2 adjacent elements with the filter and add the result + srcReg32b10 = _mm256_maddubs_epi16(srcReg32b10, firstFilters); + srcReg32b6 = _mm256_maddubs_epi16(srcReg32b4, forthFilters); + + // add and saturate the results together + srcReg32b10 = _mm256_adds_epi16(srcReg32b10, srcReg32b6); + + // multiply 2 adjacent elements with the filter and add the result + srcReg32b8 = _mm256_maddubs_epi16(srcReg32b11, secondFilters); + srcReg32b12 = _mm256_maddubs_epi16(srcReg32b2, thirdFilters); + + // add and saturate the results together + srcReg32b10 = _mm256_adds_epi16(srcReg32b10, + _mm256_adds_epi16(srcReg32b8, srcReg32b12)); + + // shift by 6 bit each 16 bit + srcReg32b10 = _mm256_adds_epi16(srcReg32b10, addFilterReg32); + srcReg32b10 = _mm256_srai_epi16(srcReg32b10, 6); + + // shrink to 8 bit each 16 bits, the first lane contain the first + // convolve result and the second lane contain the second convolve + // result + srcReg32b1 = _mm256_packus_epi16(srcReg32b10, _mm256_setzero_si256()); + + src_ptr += src_stride; + + xx_storeu2_epi64(output_ptr, out_pitch, &srcReg32b1); + + output_ptr += dst_stride; + + // save part of the registers for next strides + srcReg32b10 = srcReg32b11; + srcReg32b11 = srcReg32b2; + srcReg32b2 = srcReg32b4; + srcReg32b7 = srcReg32b9; + } + if (i > 0) { + __m128i srcRegFilt1, srcRegFilt4, srcRegFilt6, srcRegFilt8; + // load the last 16 bytes + srcRegFilt8 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 7)); + + // merge the last 2 results together + srcRegFilt4 = + _mm_unpacklo_epi8(_mm256_castsi256_si128(srcReg32b7), srcRegFilt8); + + // multiply 2 adjacent elements with the filter and add the result + srcRegFilt1 = _mm_maddubs_epi16(_mm256_castsi256_si128(srcReg32b10), + _mm256_castsi256_si128(firstFilters)); + srcRegFilt4 = + _mm_maddubs_epi16(srcRegFilt4, _mm256_castsi256_si128(forthFilters)); + + // add and saturate the results together + srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt4); + + // multiply 2 adjacent elements with the filter and add the result + srcRegFilt4 = _mm_maddubs_epi16(_mm256_castsi256_si128(srcReg32b11), + _mm256_castsi256_si128(secondFilters)); + + // multiply 2 adjacent elements with the filter and add the result + srcRegFilt6 = _mm_maddubs_epi16(_mm256_castsi256_si128(srcReg32b2), + _mm256_castsi256_si128(thirdFilters)); + + // add and saturate the results together + srcRegFilt1 = + _mm_adds_epi16(srcRegFilt1, _mm_adds_epi16(srcRegFilt4, srcRegFilt6)); + + // shift by 6 bit each 16 bit + srcRegFilt1 = + _mm_adds_epi16(srcRegFilt1, _mm256_castsi256_si128(addFilterReg32)); + srcRegFilt1 = _mm_srai_epi16(srcRegFilt1, 6); + + // shrink to 8 bit each 16 bits, the first lane contain the first + // convolve result and the second lane contain the second convolve result + srcRegFilt1 = _mm_packus_epi16(srcRegFilt1, _mm_setzero_si128()); + + // save 8 bytes + _mm_storel_epi64((__m128i *)output_ptr, srcRegFilt1); + } +} + static void aom_filter_block1d16_v8_avx2( const uint8_t *src_ptr, ptrdiff_t src_pitch, uint8_t *output_ptr, ptrdiff_t out_pitch, uint32_t output_height, const int16_t *filter) { __m128i filtersReg; - __m256i addFilterReg64; + __m256i addFilterReg32; __m256i srcReg32b1, srcReg32b2, srcReg32b3, srcReg32b4, srcReg32b5; __m256i srcReg32b6, srcReg32b7, srcReg32b8, srcReg32b9, srcReg32b10; __m256i srcReg32b11, srcReg32b12, filtersReg32; @@ -281,11 +671,11 @@ static void aom_filter_block1d16_v8_avx2( unsigned int i; ptrdiff_t src_stride, dst_stride; - // create a register with 0,64,0,64,0,64,0,64,0,64,0,64,0,64,0,64 - addFilterReg64 = _mm256_set1_epi32((int)0x0400040u); + addFilterReg32 = _mm256_set1_epi16(32); filtersReg = _mm_loadu_si128((const __m128i *)filter); // converting the 16 bit (short) to 8 bit (byte) and have the // same data in both lanes of 128 bit register. + filtersReg = _mm_srai_epi16(filtersReg, 1); filtersReg = _mm_packs_epi16(filtersReg, filtersReg); // have the same data in both lanes of a 256 bit register filtersReg32 = MM256_BROADCASTSI128_SI256(filtersReg); @@ -308,49 +698,26 @@ static void aom_filter_block1d16_v8_avx2( dst_stride = out_pitch << 1; // load 16 bytes 7 times in stride of src_pitch - srcReg32b1 = - _mm256_castsi128_si256(_mm_loadu_si128((const __m128i *)(src_ptr))); - srcReg32b2 = _mm256_castsi128_si256( - _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch))); - srcReg32b3 = _mm256_castsi128_si256( - _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 2))); - srcReg32b4 = _mm256_castsi128_si256( - _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 3))); - srcReg32b5 = _mm256_castsi128_si256( - _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 4))); - srcReg32b6 = _mm256_castsi128_si256( - _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 5))); + srcReg32b1 = xx_loadu2_mi128(src_ptr + src_pitch, src_ptr); + srcReg32b3 = + xx_loadu2_mi128(src_ptr + src_pitch * 3, src_ptr + src_pitch * 2); + srcReg32b5 = + xx_loadu2_mi128(src_ptr + src_pitch * 5, src_ptr + src_pitch * 4); srcReg32b7 = _mm256_castsi128_si256( _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 6))); // have each consecutive loads on the same 256 register - srcReg32b1 = _mm256_inserti128_si256(srcReg32b1, - _mm256_castsi256_si128(srcReg32b2), 1); - srcReg32b2 = _mm256_inserti128_si256(srcReg32b2, - _mm256_castsi256_si128(srcReg32b3), 1); - srcReg32b3 = _mm256_inserti128_si256(srcReg32b3, - _mm256_castsi256_si128(srcReg32b4), 1); - srcReg32b4 = _mm256_inserti128_si256(srcReg32b4, - _mm256_castsi256_si128(srcReg32b5), 1); - srcReg32b5 = _mm256_inserti128_si256(srcReg32b5, - _mm256_castsi256_si128(srcReg32b6), 1); - srcReg32b6 = _mm256_inserti128_si256(srcReg32b6, - _mm256_castsi256_si128(srcReg32b7), 1); - + srcReg32b2 = _mm256_permute2x128_si256(srcReg32b1, srcReg32b3, 0x21); + srcReg32b4 = _mm256_permute2x128_si256(srcReg32b3, srcReg32b5, 0x21); + srcReg32b6 = _mm256_permute2x128_si256(srcReg32b5, srcReg32b7, 0x21); // merge every two consecutive registers except the last one srcReg32b10 = _mm256_unpacklo_epi8(srcReg32b1, srcReg32b2); srcReg32b1 = _mm256_unpackhi_epi8(srcReg32b1, srcReg32b2); // save srcReg32b11 = _mm256_unpacklo_epi8(srcReg32b3, srcReg32b4); - - // save srcReg32b3 = _mm256_unpackhi_epi8(srcReg32b3, srcReg32b4); - - // save srcReg32b2 = _mm256_unpacklo_epi8(srcReg32b5, srcReg32b6); - - // save srcReg32b5 = _mm256_unpackhi_epi8(srcReg32b5, srcReg32b6); for (i = output_height; i > 1; i -= 2) { @@ -383,9 +750,7 @@ static void aom_filter_block1d16_v8_avx2( // add and saturate the results together srcReg32b10 = _mm256_adds_epi16(srcReg32b10, - _mm256_min_epi16(srcReg32b8, srcReg32b12)); - srcReg32b10 = _mm256_adds_epi16(srcReg32b10, - _mm256_max_epi16(srcReg32b8, srcReg32b12)); + _mm256_adds_epi16(srcReg32b8, srcReg32b12)); // multiply 2 adjacent elements with the filter and add the result srcReg32b1 = _mm256_maddubs_epi16(srcReg32b1, firstFilters); @@ -399,16 +764,13 @@ static void aom_filter_block1d16_v8_avx2( // add and saturate the results together srcReg32b1 = _mm256_adds_epi16(srcReg32b1, - _mm256_min_epi16(srcReg32b8, srcReg32b12)); - srcReg32b1 = _mm256_adds_epi16(srcReg32b1, - _mm256_max_epi16(srcReg32b8, srcReg32b12)); - - srcReg32b10 = _mm256_adds_epi16(srcReg32b10, addFilterReg64); - srcReg32b1 = _mm256_adds_epi16(srcReg32b1, addFilterReg64); + _mm256_adds_epi16(srcReg32b8, srcReg32b12)); - // shift by 7 bit each 16 bit - srcReg32b10 = _mm256_srai_epi16(srcReg32b10, 7); - srcReg32b1 = _mm256_srai_epi16(srcReg32b1, 7); + // shift by 6 bit each 16 bit + srcReg32b10 = _mm256_adds_epi16(srcReg32b10, addFilterReg32); + srcReg32b1 = _mm256_adds_epi16(srcReg32b1, addFilterReg32); + srcReg32b10 = _mm256_srai_epi16(srcReg32b10, 6); + srcReg32b1 = _mm256_srai_epi16(srcReg32b1, 6); // shrink to 8 bit each 16 bits, the first lane contain the first // convolve result and the second lane contain the second convolve @@ -417,12 +779,7 @@ static void aom_filter_block1d16_v8_avx2( src_ptr += src_stride; - // save 16 bytes - _mm_store_si128((__m128i *)output_ptr, _mm256_castsi256_si128(srcReg32b1)); - - // save the next 16 bits - _mm_store_si128((__m128i *)(output_ptr + out_pitch), - _mm256_extractf128_si256(srcReg32b1, 1)); + xx_store2_mi128(output_ptr, out_pitch, &srcReg32b1); output_ptr += dst_stride; @@ -475,24 +832,17 @@ static void aom_filter_block1d16_v8_avx2( // add and saturate the results together srcRegFilt1 = - _mm_adds_epi16(srcRegFilt1, _mm_min_epi16(srcRegFilt4, srcRegFilt6)); + _mm_adds_epi16(srcRegFilt1, _mm_adds_epi16(srcRegFilt4, srcRegFilt6)); srcRegFilt3 = - _mm_adds_epi16(srcRegFilt3, _mm_min_epi16(srcRegFilt5, srcRegFilt7)); + _mm_adds_epi16(srcRegFilt3, _mm_adds_epi16(srcRegFilt5, srcRegFilt7)); - // add and saturate the results together + // shift by 6 bit each 16 bit srcRegFilt1 = - _mm_adds_epi16(srcRegFilt1, _mm_max_epi16(srcRegFilt4, srcRegFilt6)); + _mm_adds_epi16(srcRegFilt1, _mm256_castsi256_si128(addFilterReg32)); srcRegFilt3 = - _mm_adds_epi16(srcRegFilt3, _mm_max_epi16(srcRegFilt5, srcRegFilt7)); - - srcRegFilt1 = - _mm_adds_epi16(srcRegFilt1, _mm256_castsi256_si128(addFilterReg64)); - srcRegFilt3 = - _mm_adds_epi16(srcRegFilt3, _mm256_castsi256_si128(addFilterReg64)); - - // shift by 7 bit each 16 bit - srcRegFilt1 = _mm_srai_epi16(srcRegFilt1, 7); - srcRegFilt3 = _mm_srai_epi16(srcRegFilt3, 7); + _mm_adds_epi16(srcRegFilt3, _mm256_castsi256_si128(addFilterReg32)); + srcRegFilt1 = _mm_srai_epi16(srcRegFilt1, 6); + srcRegFilt3 = _mm_srai_epi16(srcRegFilt3, 6); // shrink to 8 bit each 16 bits, the first lane contain the first // convolve result and the second lane contain the second convolve @@ -506,21 +856,6 @@ static void aom_filter_block1d16_v8_avx2( #if HAVE_AVX2 && HAVE_SSSE3 filter8_1dfunction aom_filter_block1d4_v8_ssse3; -#if ARCH_X86_64 -filter8_1dfunction aom_filter_block1d8_v8_intrin_ssse3; -filter8_1dfunction aom_filter_block1d8_h8_intrin_ssse3; -filter8_1dfunction aom_filter_block1d4_h8_intrin_ssse3; -#define aom_filter_block1d8_v8_avx2 aom_filter_block1d8_v8_intrin_ssse3 -#define aom_filter_block1d8_h8_avx2 aom_filter_block1d8_h8_intrin_ssse3 -#define aom_filter_block1d4_h8_avx2 aom_filter_block1d4_h8_intrin_ssse3 -#else // ARCH_X86 -filter8_1dfunction aom_filter_block1d8_v8_ssse3; -filter8_1dfunction aom_filter_block1d8_h8_ssse3; -filter8_1dfunction aom_filter_block1d4_h8_ssse3; -#define aom_filter_block1d8_v8_avx2 aom_filter_block1d8_v8_ssse3 -#define aom_filter_block1d8_h8_avx2 aom_filter_block1d8_h8_ssse3 -#define aom_filter_block1d4_h8_avx2 aom_filter_block1d4_h8_ssse3 -#endif // ARCH_X86_64 filter8_1dfunction aom_filter_block1d16_v2_ssse3; filter8_1dfunction aom_filter_block1d16_h2_ssse3; filter8_1dfunction aom_filter_block1d8_v2_ssse3; |