diff options
Diffstat (limited to 'chromium/third_party/libvpx/source/libvpx/vpx_dsp/x86/variance_impl_avx2.c')
| -rw-r--r-- | chromium/third_party/libvpx/source/libvpx/vpx_dsp/x86/variance_impl_avx2.c | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/chromium/third_party/libvpx/source/libvpx/vpx_dsp/x86/variance_impl_avx2.c b/chromium/third_party/libvpx/source/libvpx/vpx_dsp/x86/variance_impl_avx2.c deleted file mode 100644 index 0e40959aa9d..00000000000 --- a/chromium/third_party/libvpx/source/libvpx/vpx_dsp/x86/variance_impl_avx2.c +++ /dev/null @@ -1,215 +0,0 @@ -/* - * Copyright (c) 2012 The WebM project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE 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. - */ - -#include <immintrin.h> // AVX2 - -#include "./vpx_dsp_rtcd.h" - -void vpx_get16x16var_avx2(const unsigned char *src_ptr, - int source_stride, - const unsigned char *ref_ptr, - int recon_stride, - unsigned int *SSE, - int *Sum) { - __m256i src, src_expand_low, src_expand_high, ref, ref_expand_low; - __m256i ref_expand_high, madd_low, madd_high; - unsigned int i, src_2strides, ref_2strides; - __m256i zero_reg = _mm256_set1_epi16(0); - __m256i sum_ref_src = _mm256_set1_epi16(0); - __m256i madd_ref_src = _mm256_set1_epi16(0); - - // processing two strides in a 256 bit register reducing the number - // of loop stride by half (comparing to the sse2 code) - src_2strides = source_stride << 1; - ref_2strides = recon_stride << 1; - for (i = 0; i < 8; i++) { - src = _mm256_castsi128_si256( - _mm_loadu_si128((__m128i const *) (src_ptr))); - src = _mm256_inserti128_si256(src, - _mm_loadu_si128((__m128i const *)(src_ptr+source_stride)), 1); - - ref =_mm256_castsi128_si256( - _mm_loadu_si128((__m128i const *) (ref_ptr))); - ref = _mm256_inserti128_si256(ref, - _mm_loadu_si128((__m128i const *)(ref_ptr+recon_stride)), 1); - - // expanding to 16 bit each lane - src_expand_low = _mm256_unpacklo_epi8(src, zero_reg); - src_expand_high = _mm256_unpackhi_epi8(src, zero_reg); - - ref_expand_low = _mm256_unpacklo_epi8(ref, zero_reg); - ref_expand_high = _mm256_unpackhi_epi8(ref, zero_reg); - - // src-ref - src_expand_low = _mm256_sub_epi16(src_expand_low, ref_expand_low); - src_expand_high = _mm256_sub_epi16(src_expand_high, ref_expand_high); - - // madd low (src - ref) - madd_low = _mm256_madd_epi16(src_expand_low, src_expand_low); - - // add high to low - src_expand_low = _mm256_add_epi16(src_expand_low, src_expand_high); - - // madd high (src - ref) - madd_high = _mm256_madd_epi16(src_expand_high, src_expand_high); - - sum_ref_src = _mm256_add_epi16(sum_ref_src, src_expand_low); - - // add high to low - madd_ref_src = _mm256_add_epi32(madd_ref_src, - _mm256_add_epi32(madd_low, madd_high)); - - src_ptr+= src_2strides; - ref_ptr+= ref_2strides; - } - - { - __m128i sum_res, madd_res; - __m128i expand_sum_low, expand_sum_high, expand_sum; - __m128i expand_madd_low, expand_madd_high, expand_madd; - __m128i ex_expand_sum_low, ex_expand_sum_high, ex_expand_sum; - - // extract the low lane and add it to the high lane - sum_res = _mm_add_epi16(_mm256_castsi256_si128(sum_ref_src), - _mm256_extractf128_si256(sum_ref_src, 1)); - - madd_res = _mm_add_epi32(_mm256_castsi256_si128(madd_ref_src), - _mm256_extractf128_si256(madd_ref_src, 1)); - - // padding each 2 bytes with another 2 zeroed bytes - expand_sum_low = _mm_unpacklo_epi16(_mm256_castsi256_si128(zero_reg), - sum_res); - expand_sum_high = _mm_unpackhi_epi16(_mm256_castsi256_si128(zero_reg), - sum_res); - - // shifting the sign 16 bits right - expand_sum_low = _mm_srai_epi32(expand_sum_low, 16); - expand_sum_high = _mm_srai_epi32(expand_sum_high, 16); - - expand_sum = _mm_add_epi32(expand_sum_low, expand_sum_high); - - // expand each 32 bits of the madd result to 64 bits - expand_madd_low = _mm_unpacklo_epi32(madd_res, - _mm256_castsi256_si128(zero_reg)); - expand_madd_high = _mm_unpackhi_epi32(madd_res, - _mm256_castsi256_si128(zero_reg)); - - expand_madd = _mm_add_epi32(expand_madd_low, expand_madd_high); - - ex_expand_sum_low = _mm_unpacklo_epi32(expand_sum, - _mm256_castsi256_si128(zero_reg)); - ex_expand_sum_high = _mm_unpackhi_epi32(expand_sum, - _mm256_castsi256_si128(zero_reg)); - - ex_expand_sum = _mm_add_epi32(ex_expand_sum_low, ex_expand_sum_high); - - // shift 8 bytes eight - madd_res = _mm_srli_si128(expand_madd, 8); - sum_res = _mm_srli_si128(ex_expand_sum, 8); - - madd_res = _mm_add_epi32(madd_res, expand_madd); - sum_res = _mm_add_epi32(sum_res, ex_expand_sum); - - *((int*)SSE)= _mm_cvtsi128_si32(madd_res); - - *((int*)Sum)= _mm_cvtsi128_si32(sum_res); - } -} - -void vpx_get32x32var_avx2(const unsigned char *src_ptr, - int source_stride, - const unsigned char *ref_ptr, - int recon_stride, - unsigned int *SSE, - int *Sum) { - __m256i src, src_expand_low, src_expand_high, ref, ref_expand_low; - __m256i ref_expand_high, madd_low, madd_high; - unsigned int i; - __m256i zero_reg = _mm256_set1_epi16(0); - __m256i sum_ref_src = _mm256_set1_epi16(0); - __m256i madd_ref_src = _mm256_set1_epi16(0); - - // processing 32 elements in parallel - for (i = 0; i < 16; i++) { - src = _mm256_loadu_si256((__m256i const *) (src_ptr)); - - ref = _mm256_loadu_si256((__m256i const *) (ref_ptr)); - - // expanding to 16 bit each lane - src_expand_low = _mm256_unpacklo_epi8(src, zero_reg); - src_expand_high = _mm256_unpackhi_epi8(src, zero_reg); - - ref_expand_low = _mm256_unpacklo_epi8(ref, zero_reg); - ref_expand_high = _mm256_unpackhi_epi8(ref, zero_reg); - - // src-ref - src_expand_low = _mm256_sub_epi16(src_expand_low, ref_expand_low); - src_expand_high = _mm256_sub_epi16(src_expand_high, ref_expand_high); - - // madd low (src - ref) - madd_low = _mm256_madd_epi16(src_expand_low, src_expand_low); - - // add high to low - src_expand_low = _mm256_add_epi16(src_expand_low, src_expand_high); - - // madd high (src - ref) - madd_high = _mm256_madd_epi16(src_expand_high, src_expand_high); - - sum_ref_src = _mm256_add_epi16(sum_ref_src, src_expand_low); - - // add high to low - madd_ref_src = _mm256_add_epi32(madd_ref_src, - _mm256_add_epi32(madd_low, madd_high)); - - src_ptr+= source_stride; - ref_ptr+= recon_stride; - } - - { - __m256i expand_sum_low, expand_sum_high, expand_sum; - __m256i expand_madd_low, expand_madd_high, expand_madd; - __m256i ex_expand_sum_low, ex_expand_sum_high, ex_expand_sum; - - // padding each 2 bytes with another 2 zeroed bytes - expand_sum_low = _mm256_unpacklo_epi16(zero_reg, sum_ref_src); - expand_sum_high = _mm256_unpackhi_epi16(zero_reg, sum_ref_src); - - // shifting the sign 16 bits right - expand_sum_low = _mm256_srai_epi32(expand_sum_low, 16); - expand_sum_high = _mm256_srai_epi32(expand_sum_high, 16); - - expand_sum = _mm256_add_epi32(expand_sum_low, expand_sum_high); - - // expand each 32 bits of the madd result to 64 bits - expand_madd_low = _mm256_unpacklo_epi32(madd_ref_src, zero_reg); - expand_madd_high = _mm256_unpackhi_epi32(madd_ref_src, zero_reg); - - expand_madd = _mm256_add_epi32(expand_madd_low, expand_madd_high); - - ex_expand_sum_low = _mm256_unpacklo_epi32(expand_sum, zero_reg); - ex_expand_sum_high = _mm256_unpackhi_epi32(expand_sum, zero_reg); - - ex_expand_sum = _mm256_add_epi32(ex_expand_sum_low, ex_expand_sum_high); - - // shift 8 bytes eight - madd_ref_src = _mm256_srli_si256(expand_madd, 8); - sum_ref_src = _mm256_srli_si256(ex_expand_sum, 8); - - madd_ref_src = _mm256_add_epi32(madd_ref_src, expand_madd); - sum_ref_src = _mm256_add_epi32(sum_ref_src, ex_expand_sum); - - // extract the low lane and the high lane and add the results - *((int*)SSE)= _mm_cvtsi128_si32(_mm256_castsi256_si128(madd_ref_src)) + - _mm_cvtsi128_si32(_mm256_extractf128_si256(madd_ref_src, 1)); - - *((int*)Sum)= _mm_cvtsi128_si32(_mm256_castsi256_si128(sum_ref_src)) + - _mm_cvtsi128_si32(_mm256_extractf128_si256(sum_ref_src, 1)); - } -} |