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Diffstat (limited to '')
| -rw-r--r-- | third_party/aom/aom_dsp/x86/aom_subpixel_8t_intrin_sse2.c | 569 |
1 files changed, 569 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/x86/aom_subpixel_8t_intrin_sse2.c b/third_party/aom/aom_dsp/x86/aom_subpixel_8t_intrin_sse2.c new file mode 100644 index 0000000000..5c36b68727 --- /dev/null +++ b/third_party/aom/aom_dsp/x86/aom_subpixel_8t_intrin_sse2.c @@ -0,0 +1,569 @@ +/* + * Copyright (c) 2018, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +#include <emmintrin.h> // SSE2 + +#include "config/aom_dsp_rtcd.h" +#include "aom_dsp/x86/convolve.h" +#include "aom_ports/mem.h" + +void aom_filter_block1d16_h4_sse2(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; + __m128i addFilterReg32; + __m128i secondFilters, thirdFilters; + __m128i srcRegFilt32b1_1, srcRegFilt32b1_2, srcRegFilt32b2_1, + srcRegFilt32b2_2; + __m128i srcReg32b1, srcReg32b2; + unsigned int i; + src_ptr -= 3; + addFilterReg32 = _mm_set1_epi16(32); + filtersReg = _mm_loadu_si128((const __m128i *)filter); + filtersReg = _mm_srai_epi16(filtersReg, 1); + + // coeffs 0 1 0 1 2 3 2 3 + const __m128i tmp_0 = _mm_unpacklo_epi32(filtersReg, filtersReg); + // coeffs 4 5 4 5 6 7 6 7 + const __m128i tmp_1 = _mm_unpackhi_epi32(filtersReg, filtersReg); + + secondFilters = _mm_unpackhi_epi64(tmp_0, tmp_0); // coeffs 2 3 2 3 2 3 2 3 + thirdFilters = _mm_unpacklo_epi64(tmp_1, tmp_1); // coeffs 4 5 4 5 4 5 4 5 + + for (i = output_height; i > 0; i -= 1) { + srcReg32b1 = _mm_loadu_si128((const __m128i *)src_ptr); + + __m128i ss_2 = _mm_srli_si128(srcReg32b1, 2); + __m128i ss_4 = _mm_srli_si128(srcReg32b1, 4); + __m128i ss_1_1 = _mm_unpacklo_epi8(ss_2, _mm_setzero_si128()); + __m128i ss_2_1 = _mm_unpacklo_epi8(ss_4, _mm_setzero_si128()); + __m128i d1 = _mm_madd_epi16(ss_1_1, secondFilters); + __m128i d2 = _mm_madd_epi16(ss_2_1, thirdFilters); + srcRegFilt32b1_1 = _mm_add_epi32(d1, d2); + + __m128i ss_1 = _mm_srli_si128(srcReg32b1, 3); + __m128i ss_3 = _mm_srli_si128(srcReg32b1, 5); + __m128i ss_1_2 = _mm_unpacklo_epi8(ss_1, _mm_setzero_si128()); + __m128i ss_2_2 = _mm_unpacklo_epi8(ss_3, _mm_setzero_si128()); + d1 = _mm_madd_epi16(ss_1_2, secondFilters); + d2 = _mm_madd_epi16(ss_2_2, thirdFilters); + srcRegFilt32b1_2 = _mm_add_epi32(d1, d2); + + __m128i res_lo = _mm_unpacklo_epi32(srcRegFilt32b1_1, srcRegFilt32b1_2); + __m128i res_hi = _mm_unpackhi_epi32(srcRegFilt32b1_1, srcRegFilt32b1_2); + srcRegFilt32b1_1 = _mm_packs_epi32(res_lo, res_hi); + + // reading stride of the next 16 bytes + // (part of it was being read by earlier read) + srcReg32b2 = _mm_loadu_si128((const __m128i *)(src_ptr + 8)); + + ss_2 = _mm_srli_si128(srcReg32b2, 2); + ss_4 = _mm_srli_si128(srcReg32b2, 4); + ss_1_1 = _mm_unpacklo_epi8(ss_2, _mm_setzero_si128()); + ss_2_1 = _mm_unpacklo_epi8(ss_4, _mm_setzero_si128()); + d1 = _mm_madd_epi16(ss_1_1, secondFilters); + d2 = _mm_madd_epi16(ss_2_1, thirdFilters); + srcRegFilt32b2_1 = _mm_add_epi32(d1, d2); + + ss_1 = _mm_srli_si128(srcReg32b2, 3); + ss_3 = _mm_srli_si128(srcReg32b2, 5); + ss_1_2 = _mm_unpacklo_epi8(ss_1, _mm_setzero_si128()); + ss_2_2 = _mm_unpacklo_epi8(ss_3, _mm_setzero_si128()); + d1 = _mm_madd_epi16(ss_1_2, secondFilters); + d2 = _mm_madd_epi16(ss_2_2, thirdFilters); + srcRegFilt32b2_2 = _mm_add_epi32(d1, d2); + + res_lo = _mm_unpacklo_epi32(srcRegFilt32b2_1, srcRegFilt32b2_2); + res_hi = _mm_unpackhi_epi32(srcRegFilt32b2_1, srcRegFilt32b2_2); + srcRegFilt32b2_1 = _mm_packs_epi32(res_lo, res_hi); + + // shift by 6 bit each 16 bit + srcRegFilt32b1_1 = _mm_adds_epi16(srcRegFilt32b1_1, addFilterReg32); + srcRegFilt32b2_1 = _mm_adds_epi16(srcRegFilt32b2_1, addFilterReg32); + srcRegFilt32b1_1 = _mm_srai_epi16(srcRegFilt32b1_1, 6); + srcRegFilt32b2_1 = _mm_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 + srcRegFilt32b1_1 = _mm_packus_epi16(srcRegFilt32b1_1, srcRegFilt32b2_1); + + src_ptr += src_pixels_per_line; + + _mm_store_si128((__m128i *)output_ptr, srcRegFilt32b1_1); + + output_ptr += output_pitch; + } +} + +void aom_filter_block1d16_v4_sse2(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; + __m128i srcReg2, srcReg3, srcReg4, srcReg5, srcReg6; + __m128i srcReg23_lo, srcReg23_hi, srcReg34_lo, srcReg34_hi; + __m128i srcReg45_lo, srcReg45_hi, srcReg56_lo, srcReg56_hi; + __m128i resReg23_lo, resReg34_lo, resReg45_lo, resReg56_lo; + __m128i resReg23_hi, resReg34_hi, resReg45_hi, resReg56_hi; + __m128i resReg23_45_lo, resReg34_56_lo, resReg23_45_hi, resReg34_56_hi; + __m128i resReg23_45, resReg34_56; + __m128i addFilterReg32, secondFilters, thirdFilters; + __m128i tmp_0, tmp_1; + unsigned int i; + ptrdiff_t src_stride, dst_stride; + + addFilterReg32 = _mm_set1_epi16(32); + filtersReg = _mm_loadu_si128((const __m128i *)filter); + filtersReg = _mm_srai_epi16(filtersReg, 1); + + // coeffs 0 1 0 1 2 3 2 3 + const __m128i tmp0 = _mm_unpacklo_epi32(filtersReg, filtersReg); + // coeffs 4 5 4 5 6 7 6 7 + const __m128i tmp1 = _mm_unpackhi_epi32(filtersReg, filtersReg); + + secondFilters = _mm_unpackhi_epi64(tmp0, tmp0); // coeffs 2 3 2 3 2 3 2 3 + thirdFilters = _mm_unpacklo_epi64(tmp1, tmp1); // coeffs 4 5 4 5 4 5 4 5 + + // multiply the size of the source and destination stride by two + src_stride = src_pitch << 1; + dst_stride = out_pitch << 1; + + srcReg2 = _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 2)); + srcReg3 = _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 3)); + srcReg23_lo = _mm_unpacklo_epi8(srcReg2, srcReg3); + srcReg23_hi = _mm_unpackhi_epi8(srcReg2, srcReg3); + __m128i resReg23_lo_1 = _mm_unpacklo_epi8(srcReg23_lo, _mm_setzero_si128()); + __m128i resReg23_lo_2 = _mm_unpackhi_epi8(srcReg23_lo, _mm_setzero_si128()); + __m128i resReg23_hi_1 = _mm_unpacklo_epi8(srcReg23_hi, _mm_setzero_si128()); + __m128i resReg23_hi_2 = _mm_unpackhi_epi8(srcReg23_hi, _mm_setzero_si128()); + + srcReg4 = _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 4)); + srcReg34_lo = _mm_unpacklo_epi8(srcReg3, srcReg4); + srcReg34_hi = _mm_unpackhi_epi8(srcReg3, srcReg4); + __m128i resReg34_lo_1 = _mm_unpacklo_epi8(srcReg34_lo, _mm_setzero_si128()); + __m128i resReg34_lo_2 = _mm_unpackhi_epi8(srcReg34_lo, _mm_setzero_si128()); + __m128i resReg34_hi_1 = _mm_unpacklo_epi8(srcReg34_hi, _mm_setzero_si128()); + __m128i resReg34_hi_2 = _mm_unpackhi_epi8(srcReg34_hi, _mm_setzero_si128()); + + for (i = output_height; i > 1; i -= 2) { + srcReg5 = _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 5)); + + srcReg45_lo = _mm_unpacklo_epi8(srcReg4, srcReg5); + srcReg45_hi = _mm_unpackhi_epi8(srcReg4, srcReg5); + + srcReg6 = _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 6)); + + srcReg56_lo = _mm_unpacklo_epi8(srcReg5, srcReg6); + srcReg56_hi = _mm_unpackhi_epi8(srcReg5, srcReg6); + + // multiply 2 adjacent elements with the filter and add the result + + tmp_0 = _mm_madd_epi16(resReg23_lo_1, secondFilters); + tmp_1 = _mm_madd_epi16(resReg23_lo_2, secondFilters); + resReg23_lo = _mm_packs_epi32(tmp_0, tmp_1); + + tmp_0 = _mm_madd_epi16(resReg34_lo_1, secondFilters); + tmp_1 = _mm_madd_epi16(resReg34_lo_2, secondFilters); + resReg34_lo = _mm_packs_epi32(tmp_0, tmp_1); + + __m128i resReg45_lo_1 = _mm_unpacklo_epi8(srcReg45_lo, _mm_setzero_si128()); + __m128i resReg45_lo_2 = _mm_unpackhi_epi8(srcReg45_lo, _mm_setzero_si128()); + tmp_0 = _mm_madd_epi16(resReg45_lo_1, thirdFilters); + tmp_1 = _mm_madd_epi16(resReg45_lo_2, thirdFilters); + resReg45_lo = _mm_packs_epi32(tmp_0, tmp_1); + + __m128i resReg56_lo_1 = _mm_unpacklo_epi8(srcReg56_lo, _mm_setzero_si128()); + __m128i resReg56_lo_2 = _mm_unpackhi_epi8(srcReg56_lo, _mm_setzero_si128()); + tmp_0 = _mm_madd_epi16(resReg56_lo_1, thirdFilters); + tmp_1 = _mm_madd_epi16(resReg56_lo_2, thirdFilters); + resReg56_lo = _mm_packs_epi32(tmp_0, tmp_1); + + // add and saturate the results together + resReg23_45_lo = _mm_adds_epi16(resReg23_lo, resReg45_lo); + resReg34_56_lo = _mm_adds_epi16(resReg34_lo, resReg56_lo); + + // multiply 2 adjacent elements with the filter and add the result + + tmp_0 = _mm_madd_epi16(resReg23_hi_1, secondFilters); + tmp_1 = _mm_madd_epi16(resReg23_hi_2, secondFilters); + resReg23_hi = _mm_packs_epi32(tmp_0, tmp_1); + + tmp_0 = _mm_madd_epi16(resReg34_hi_1, secondFilters); + tmp_1 = _mm_madd_epi16(resReg34_hi_2, secondFilters); + resReg34_hi = _mm_packs_epi32(tmp_0, tmp_1); + + __m128i resReg45_hi_1 = _mm_unpacklo_epi8(srcReg45_hi, _mm_setzero_si128()); + __m128i resReg45_hi_2 = _mm_unpackhi_epi8(srcReg45_hi, _mm_setzero_si128()); + tmp_0 = _mm_madd_epi16(resReg45_hi_1, thirdFilters); + tmp_1 = _mm_madd_epi16(resReg45_hi_2, thirdFilters); + resReg45_hi = _mm_packs_epi32(tmp_0, tmp_1); + + __m128i resReg56_hi_1 = _mm_unpacklo_epi8(srcReg56_hi, _mm_setzero_si128()); + __m128i resReg56_hi_2 = _mm_unpackhi_epi8(srcReg56_hi, _mm_setzero_si128()); + tmp_0 = _mm_madd_epi16(resReg56_hi_1, thirdFilters); + tmp_1 = _mm_madd_epi16(resReg56_hi_2, thirdFilters); + resReg56_hi = _mm_packs_epi32(tmp_0, tmp_1); + + // add and saturate the results together + resReg23_45_hi = _mm_adds_epi16(resReg23_hi, resReg45_hi); + resReg34_56_hi = _mm_adds_epi16(resReg34_hi, resReg56_hi); + + // shift by 6 bit each 16 bit + resReg23_45_lo = _mm_adds_epi16(resReg23_45_lo, addFilterReg32); + resReg34_56_lo = _mm_adds_epi16(resReg34_56_lo, addFilterReg32); + resReg23_45_hi = _mm_adds_epi16(resReg23_45_hi, addFilterReg32); + resReg34_56_hi = _mm_adds_epi16(resReg34_56_hi, addFilterReg32); + resReg23_45_lo = _mm_srai_epi16(resReg23_45_lo, 6); + resReg34_56_lo = _mm_srai_epi16(resReg34_56_lo, 6); + resReg23_45_hi = _mm_srai_epi16(resReg23_45_hi, 6); + resReg34_56_hi = _mm_srai_epi16(resReg34_56_hi, 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 + resReg23_45 = _mm_packus_epi16(resReg23_45_lo, resReg23_45_hi); + resReg34_56 = _mm_packus_epi16(resReg34_56_lo, resReg34_56_hi); + + src_ptr += src_stride; + + _mm_store_si128((__m128i *)output_ptr, (resReg23_45)); + _mm_store_si128((__m128i *)(output_ptr + out_pitch), (resReg34_56)); + + output_ptr += dst_stride; + + // save part of the registers for next strides + resReg23_lo_1 = resReg45_lo_1; + resReg23_lo_2 = resReg45_lo_2; + resReg23_hi_1 = resReg45_hi_1; + resReg23_hi_2 = resReg45_hi_2; + resReg34_lo_1 = resReg56_lo_1; + resReg34_lo_2 = resReg56_lo_2; + resReg34_hi_1 = resReg56_hi_1; + resReg34_hi_2 = resReg56_hi_2; + srcReg4 = srcReg6; + } +} + +void aom_filter_block1d8_h4_sse2(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; + __m128i addFilterReg32; + __m128i secondFilters, thirdFilters; + __m128i srcRegFilt32b1_1, srcRegFilt32b1_2; + __m128i srcReg32b1; + unsigned int i; + src_ptr -= 3; + addFilterReg32 = _mm_set1_epi16(32); + filtersReg = _mm_loadu_si128((const __m128i *)filter); + filtersReg = _mm_srai_epi16(filtersReg, 1); + + // coeffs 0 1 0 1 2 3 2 3 + const __m128i tmp_0 = _mm_unpacklo_epi32(filtersReg, filtersReg); + // coeffs 4 5 4 5 6 7 6 7 + const __m128i tmp_1 = _mm_unpackhi_epi32(filtersReg, filtersReg); + + secondFilters = _mm_unpackhi_epi64(tmp_0, tmp_0); // coeffs 2 3 2 3 2 3 2 3 + thirdFilters = _mm_unpacklo_epi64(tmp_1, tmp_1); // coeffs 4 5 4 5 4 5 4 5 + + for (i = output_height; i > 0; i -= 1) { + srcReg32b1 = _mm_loadu_si128((const __m128i *)src_ptr); + + __m128i ss_2 = _mm_srli_si128(srcReg32b1, 2); + __m128i ss_4 = _mm_srli_si128(srcReg32b1, 4); + ss_2 = _mm_unpacklo_epi8(ss_2, _mm_setzero_si128()); + ss_4 = _mm_unpacklo_epi8(ss_4, _mm_setzero_si128()); + __m128i d1 = _mm_madd_epi16(ss_2, secondFilters); + __m128i d2 = _mm_madd_epi16(ss_4, thirdFilters); + srcRegFilt32b1_1 = _mm_add_epi32(d1, d2); + + __m128i ss_3 = _mm_srli_si128(srcReg32b1, 3); + __m128i ss_5 = _mm_srli_si128(srcReg32b1, 5); + ss_3 = _mm_unpacklo_epi8(ss_3, _mm_setzero_si128()); + ss_5 = _mm_unpacklo_epi8(ss_5, _mm_setzero_si128()); + d1 = _mm_madd_epi16(ss_3, secondFilters); + d2 = _mm_madd_epi16(ss_5, thirdFilters); + srcRegFilt32b1_2 = _mm_add_epi32(d1, d2); + + __m128i res_lo = _mm_unpacklo_epi32(srcRegFilt32b1_1, srcRegFilt32b1_2); + __m128i res_hi = _mm_unpackhi_epi32(srcRegFilt32b1_1, srcRegFilt32b1_2); + srcRegFilt32b1_1 = _mm_packs_epi32(res_lo, res_hi); + + // shift by 6 bit each 16 bit + srcRegFilt32b1_1 = _mm_adds_epi16(srcRegFilt32b1_1, addFilterReg32); + srcRegFilt32b1_1 = _mm_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 = _mm_packus_epi16(srcRegFilt32b1_1, _mm_setzero_si128()); + + src_ptr += src_pixels_per_line; + + _mm_storel_epi64((__m128i *)output_ptr, srcRegFilt32b1_1); + + output_ptr += output_pitch; + } +} + +void aom_filter_block1d8_v4_sse2(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; + __m128i srcReg2, srcReg3, srcReg4, srcReg5, srcReg6; + __m128i srcReg23_lo, srcReg34_lo; + __m128i srcReg45_lo, srcReg56_lo; + __m128i resReg23_lo, resReg34_lo, resReg45_lo, resReg56_lo; + __m128i resReg23_45_lo, resReg34_56_lo; + __m128i resReg23_45, resReg34_56; + __m128i addFilterReg32, secondFilters, thirdFilters; + __m128i tmp_0, tmp_1; + unsigned int i; + ptrdiff_t src_stride, dst_stride; + + addFilterReg32 = _mm_set1_epi16(32); + filtersReg = _mm_loadu_si128((const __m128i *)filter); + filtersReg = _mm_srai_epi16(filtersReg, 1); + + // coeffs 0 1 0 1 2 3 2 3 + const __m128i tmp0 = _mm_unpacklo_epi32(filtersReg, filtersReg); + // coeffs 4 5 4 5 6 7 6 7 + const __m128i tmp1 = _mm_unpackhi_epi32(filtersReg, filtersReg); + + secondFilters = _mm_unpackhi_epi64(tmp0, tmp0); // coeffs 2 3 2 3 2 3 2 3 + thirdFilters = _mm_unpacklo_epi64(tmp1, tmp1); // coeffs 4 5 4 5 4 5 4 5 + + // multiply the size of the source and destination stride by two + src_stride = src_pitch << 1; + dst_stride = out_pitch << 1; + + srcReg2 = _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 2)); + srcReg3 = _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 3)); + srcReg23_lo = _mm_unpacklo_epi8(srcReg2, srcReg3); + __m128i resReg23_lo_1 = _mm_unpacklo_epi8(srcReg23_lo, _mm_setzero_si128()); + __m128i resReg23_lo_2 = _mm_unpackhi_epi8(srcReg23_lo, _mm_setzero_si128()); + + srcReg4 = _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 4)); + srcReg34_lo = _mm_unpacklo_epi8(srcReg3, srcReg4); + __m128i resReg34_lo_1 = _mm_unpacklo_epi8(srcReg34_lo, _mm_setzero_si128()); + __m128i resReg34_lo_2 = _mm_unpackhi_epi8(srcReg34_lo, _mm_setzero_si128()); + + for (i = output_height; i > 1; i -= 2) { + srcReg5 = _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 5)); + srcReg45_lo = _mm_unpacklo_epi8(srcReg4, srcReg5); + + srcReg6 = _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 6)); + srcReg56_lo = _mm_unpacklo_epi8(srcReg5, srcReg6); + + // multiply 2 adjacent elements with the filter and add the result + + tmp_0 = _mm_madd_epi16(resReg23_lo_1, secondFilters); + tmp_1 = _mm_madd_epi16(resReg23_lo_2, secondFilters); + resReg23_lo = _mm_packs_epi32(tmp_0, tmp_1); + + tmp_0 = _mm_madd_epi16(resReg34_lo_1, secondFilters); + tmp_1 = _mm_madd_epi16(resReg34_lo_2, secondFilters); + resReg34_lo = _mm_packs_epi32(tmp_0, tmp_1); + + __m128i resReg45_lo_1 = _mm_unpacklo_epi8(srcReg45_lo, _mm_setzero_si128()); + __m128i resReg45_lo_2 = _mm_unpackhi_epi8(srcReg45_lo, _mm_setzero_si128()); + tmp_0 = _mm_madd_epi16(resReg45_lo_1, thirdFilters); + tmp_1 = _mm_madd_epi16(resReg45_lo_2, thirdFilters); + resReg45_lo = _mm_packs_epi32(tmp_0, tmp_1); + + __m128i resReg56_lo_1 = _mm_unpacklo_epi8(srcReg56_lo, _mm_setzero_si128()); + __m128i resReg56_lo_2 = _mm_unpackhi_epi8(srcReg56_lo, _mm_setzero_si128()); + tmp_0 = _mm_madd_epi16(resReg56_lo_1, thirdFilters); + tmp_1 = _mm_madd_epi16(resReg56_lo_2, thirdFilters); + resReg56_lo = _mm_packs_epi32(tmp_0, tmp_1); + + // add and saturate the results together + resReg23_45_lo = _mm_adds_epi16(resReg23_lo, resReg45_lo); + resReg34_56_lo = _mm_adds_epi16(resReg34_lo, resReg56_lo); + + // shift by 6 bit each 16 bit + resReg23_45_lo = _mm_adds_epi16(resReg23_45_lo, addFilterReg32); + resReg34_56_lo = _mm_adds_epi16(resReg34_56_lo, addFilterReg32); + resReg23_45_lo = _mm_srai_epi16(resReg23_45_lo, 6); + resReg34_56_lo = _mm_srai_epi16(resReg34_56_lo, 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 + resReg23_45 = _mm_packus_epi16(resReg23_45_lo, _mm_setzero_si128()); + resReg34_56 = _mm_packus_epi16(resReg34_56_lo, _mm_setzero_si128()); + + src_ptr += src_stride; + + _mm_storel_epi64((__m128i *)output_ptr, (resReg23_45)); + _mm_storel_epi64((__m128i *)(output_ptr + out_pitch), (resReg34_56)); + + output_ptr += dst_stride; + + // save part of the registers for next strides + resReg23_lo_1 = resReg45_lo_1; + resReg23_lo_2 = resReg45_lo_2; + resReg34_lo_1 = resReg56_lo_1; + resReg34_lo_2 = resReg56_lo_2; + srcReg4 = srcReg6; + } +} + +void aom_filter_block1d4_h4_sse2(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; + __m128i addFilterReg32; + __m128i secondFilters, thirdFilters; + __m128i srcRegFilt32b1_1; + __m128i srcReg32b1; + unsigned int i; + src_ptr -= 3; + addFilterReg32 = _mm_set1_epi16(32); + filtersReg = _mm_loadu_si128((const __m128i *)filter); + filtersReg = _mm_srai_epi16(filtersReg, 1); + + // coeffs 0 1 0 1 2 3 2 3 + const __m128i tmp_0 = _mm_unpacklo_epi32(filtersReg, filtersReg); + // coeffs 4 5 4 5 6 7 6 7 + const __m128i tmp_1 = _mm_unpackhi_epi32(filtersReg, filtersReg); + + secondFilters = _mm_unpackhi_epi64(tmp_0, tmp_0); // coeffs 2 3 2 3 2 3 2 3 + thirdFilters = _mm_unpacklo_epi64(tmp_1, tmp_1); // coeffs 4 5 4 5 4 5 4 5 + + for (i = output_height; i > 0; i -= 1) { + srcReg32b1 = _mm_loadu_si128((const __m128i *)src_ptr); + + __m128i ss_2 = _mm_srli_si128(srcReg32b1, 2); + __m128i ss_3 = _mm_srli_si128(srcReg32b1, 3); + __m128i ss_4 = _mm_srli_si128(srcReg32b1, 4); + __m128i ss_5 = _mm_srli_si128(srcReg32b1, 5); + + ss_2 = _mm_unpacklo_epi8(ss_2, _mm_setzero_si128()); + ss_3 = _mm_unpacklo_epi8(ss_3, _mm_setzero_si128()); + ss_4 = _mm_unpacklo_epi8(ss_4, _mm_setzero_si128()); + ss_5 = _mm_unpacklo_epi8(ss_5, _mm_setzero_si128()); + + __m128i ss_1_1 = _mm_unpacklo_epi32(ss_2, ss_3); + __m128i ss_1_2 = _mm_unpacklo_epi32(ss_4, ss_5); + + __m128i d1 = _mm_madd_epi16(ss_1_1, secondFilters); + __m128i d2 = _mm_madd_epi16(ss_1_2, thirdFilters); + srcRegFilt32b1_1 = _mm_add_epi32(d1, d2); + + srcRegFilt32b1_1 = _mm_packs_epi32(srcRegFilt32b1_1, _mm_setzero_si128()); + + // shift by 6 bit each 16 bit + srcRegFilt32b1_1 = _mm_adds_epi16(srcRegFilt32b1_1, addFilterReg32); + srcRegFilt32b1_1 = _mm_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 = _mm_packus_epi16(srcRegFilt32b1_1, _mm_setzero_si128()); + + src_ptr += src_pixels_per_line; + + *((int *)(output_ptr)) = _mm_cvtsi128_si32(srcRegFilt32b1_1); + + output_ptr += output_pitch; + } +} + +void aom_filter_block1d4_v4_sse2(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; + __m128i srcReg2, srcReg3, srcReg4, srcReg5, srcReg6; + __m128i srcReg23, srcReg34, srcReg45, srcReg56; + __m128i resReg23_34, resReg45_56; + __m128i resReg23_34_45_56; + __m128i addFilterReg32, secondFilters, thirdFilters; + __m128i tmp_0, tmp_1; + unsigned int i; + ptrdiff_t src_stride, dst_stride; + + addFilterReg32 = _mm_set1_epi16(32); + filtersReg = _mm_loadu_si128((const __m128i *)filter); + filtersReg = _mm_srai_epi16(filtersReg, 1); + + // coeffs 0 1 0 1 2 3 2 3 + const __m128i tmp0 = _mm_unpacklo_epi32(filtersReg, filtersReg); + // coeffs 4 5 4 5 6 7 6 7 + const __m128i tmp1 = _mm_unpackhi_epi32(filtersReg, filtersReg); + + secondFilters = _mm_unpackhi_epi64(tmp0, tmp0); // coeffs 2 3 2 3 2 3 2 3 + thirdFilters = _mm_unpacklo_epi64(tmp1, tmp1); // coeffs 4 5 4 5 4 5 4 5 + + // multiply the size of the source and destination stride by two + src_stride = src_pitch << 1; + dst_stride = out_pitch << 1; + + srcReg2 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 2)); + srcReg3 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 3)); + srcReg23 = _mm_unpacklo_epi8(srcReg2, srcReg3); + __m128i resReg23 = _mm_unpacklo_epi8(srcReg23, _mm_setzero_si128()); + + srcReg4 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 4)); + srcReg34 = _mm_unpacklo_epi8(srcReg3, srcReg4); + __m128i resReg34 = _mm_unpacklo_epi8(srcReg34, _mm_setzero_si128()); + + for (i = output_height; i > 1; i -= 2) { + srcReg5 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 5)); + srcReg45 = _mm_unpacklo_epi8(srcReg4, srcReg5); + srcReg6 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 6)); + srcReg56 = _mm_unpacklo_epi8(srcReg5, srcReg6); + + // multiply 2 adjacent elements with the filter and add the result + tmp_0 = _mm_madd_epi16(resReg23, secondFilters); + tmp_1 = _mm_madd_epi16(resReg34, secondFilters); + resReg23_34 = _mm_packs_epi32(tmp_0, tmp_1); + + __m128i resReg45 = _mm_unpacklo_epi8(srcReg45, _mm_setzero_si128()); + __m128i resReg56 = _mm_unpacklo_epi8(srcReg56, _mm_setzero_si128()); + + tmp_0 = _mm_madd_epi16(resReg45, thirdFilters); + tmp_1 = _mm_madd_epi16(resReg56, thirdFilters); + resReg45_56 = _mm_packs_epi32(tmp_0, tmp_1); + + // add and saturate the results together + resReg23_34_45_56 = _mm_adds_epi16(resReg23_34, resReg45_56); + + // shift by 6 bit each 16 bit + resReg23_34_45_56 = _mm_adds_epi16(resReg23_34_45_56, addFilterReg32); + resReg23_34_45_56 = _mm_srai_epi16(resReg23_34_45_56, 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 + resReg23_34_45_56 = + _mm_packus_epi16(resReg23_34_45_56, _mm_setzero_si128()); + + src_ptr += src_stride; + + *((int *)(output_ptr)) = _mm_cvtsi128_si32(resReg23_34_45_56); + *((int *)(output_ptr + out_pitch)) = + _mm_cvtsi128_si32(_mm_srli_si128(resReg23_34_45_56, 4)); + + output_ptr += dst_stride; + + // save part of the registers for next strides + resReg23 = resReg45; + resReg34 = resReg56; + srcReg4 = srcReg6; + } +} |