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Diffstat (limited to '')
| -rw-r--r-- | third_party/aom/aom_dsp/x86/highbd_variance_avx2.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/x86/highbd_variance_avx2.c b/third_party/aom/aom_dsp/x86/highbd_variance_avx2.c new file mode 100644 index 0000000000..9b1b4c9de7 --- /dev/null +++ b/third_party/aom/aom_dsp/x86/highbd_variance_avx2.c @@ -0,0 +1,140 @@ +/* + * 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 <assert.h> +#include <immintrin.h> // AVX2 + +#include "config/aom_dsp_rtcd.h" + +typedef void (*high_variance_fn_t)(const uint16_t *src, int src_stride, + const uint16_t *ref, int ref_stride, + uint32_t *sse, int *sum); + +void aom_highbd_calc8x8var_avx2(const uint16_t *src, int src_stride, + const uint16_t *ref, int ref_stride, + uint32_t *sse, int *sum) { + __m256i v_sum_d = _mm256_setzero_si256(); + __m256i v_sse_d = _mm256_setzero_si256(); + for (int i = 0; i < 8; i += 2) { + const __m128i v_p_a0 = _mm_loadu_si128((const __m128i *)src); + const __m128i v_p_a1 = _mm_loadu_si128((const __m128i *)(src + src_stride)); + const __m128i v_p_b0 = _mm_loadu_si128((const __m128i *)ref); + const __m128i v_p_b1 = _mm_loadu_si128((const __m128i *)(ref + ref_stride)); + __m256i v_p_a = _mm256_castsi128_si256(v_p_a0); + __m256i v_p_b = _mm256_castsi128_si256(v_p_b0); + v_p_a = _mm256_inserti128_si256(v_p_a, v_p_a1, 1); + v_p_b = _mm256_inserti128_si256(v_p_b, v_p_b1, 1); + const __m256i v_diff = _mm256_sub_epi16(v_p_a, v_p_b); + const __m256i v_sqrdiff = _mm256_madd_epi16(v_diff, v_diff); + v_sum_d = _mm256_add_epi16(v_sum_d, v_diff); + v_sse_d = _mm256_add_epi32(v_sse_d, v_sqrdiff); + src += src_stride * 2; + ref += ref_stride * 2; + } + __m256i v_sum00 = _mm256_cvtepi16_epi32(_mm256_castsi256_si128(v_sum_d)); + __m256i v_sum01 = _mm256_cvtepi16_epi32(_mm256_extracti128_si256(v_sum_d, 1)); + __m256i v_sum0 = _mm256_add_epi32(v_sum00, v_sum01); + __m256i v_d_l = _mm256_unpacklo_epi32(v_sum0, v_sse_d); + __m256i v_d_h = _mm256_unpackhi_epi32(v_sum0, v_sse_d); + __m256i v_d_lh = _mm256_add_epi32(v_d_l, v_d_h); + const __m128i v_d0_d = _mm256_castsi256_si128(v_d_lh); + const __m128i v_d1_d = _mm256_extracti128_si256(v_d_lh, 1); + __m128i v_d = _mm_add_epi32(v_d0_d, v_d1_d); + v_d = _mm_add_epi32(v_d, _mm_srli_si128(v_d, 8)); + *sum = _mm_extract_epi32(v_d, 0); + *sse = _mm_extract_epi32(v_d, 1); +} + +void aom_highbd_calc16x16var_avx2(const uint16_t *src, int src_stride, + const uint16_t *ref, int ref_stride, + uint32_t *sse, int *sum) { + __m256i v_sum_d = _mm256_setzero_si256(); + __m256i v_sse_d = _mm256_setzero_si256(); + const __m256i one = _mm256_set1_epi16(1); + for (int i = 0; i < 16; ++i) { + const __m256i v_p_a = _mm256_loadu_si256((const __m256i *)src); + const __m256i v_p_b = _mm256_loadu_si256((const __m256i *)ref); + const __m256i v_diff = _mm256_sub_epi16(v_p_a, v_p_b); + const __m256i v_sqrdiff = _mm256_madd_epi16(v_diff, v_diff); + v_sum_d = _mm256_add_epi16(v_sum_d, v_diff); + v_sse_d = _mm256_add_epi32(v_sse_d, v_sqrdiff); + src += src_stride; + ref += ref_stride; + } + __m256i v_sum0 = _mm256_madd_epi16(v_sum_d, one); + __m256i v_d_l = _mm256_unpacklo_epi32(v_sum0, v_sse_d); + __m256i v_d_h = _mm256_unpackhi_epi32(v_sum0, v_sse_d); + __m256i v_d_lh = _mm256_add_epi32(v_d_l, v_d_h); + const __m128i v_d0_d = _mm256_castsi256_si128(v_d_lh); + const __m128i v_d1_d = _mm256_extracti128_si256(v_d_lh, 1); + __m128i v_d = _mm_add_epi32(v_d0_d, v_d1_d); + v_d = _mm_add_epi32(v_d, _mm_srli_si128(v_d, 8)); + *sum = _mm_extract_epi32(v_d, 0); + *sse = _mm_extract_epi32(v_d, 1); +} + +static void highbd_10_variance_avx2(const uint16_t *src, int src_stride, + const uint16_t *ref, int ref_stride, int w, + int h, uint32_t *sse, int *sum, + high_variance_fn_t var_fn, int block_size) { + int i, j; + uint64_t sse_long = 0; + int32_t sum_long = 0; + + for (i = 0; i < h; i += block_size) { + for (j = 0; j < w; j += block_size) { + unsigned int sse0; + int sum0; + var_fn(src + src_stride * i + j, src_stride, ref + ref_stride * i + j, + ref_stride, &sse0, &sum0); + sse_long += sse0; + sum_long += sum0; + } + } + *sum = ROUND_POWER_OF_TWO(sum_long, 2); + *sse = (uint32_t)ROUND_POWER_OF_TWO(sse_long, 4); +} + +#define VAR_FN(w, h, block_size, shift) \ + uint32_t aom_highbd_10_variance##w##x##h##_avx2( \ + const uint8_t *src8, int src_stride, const uint8_t *ref8, \ + int ref_stride, uint32_t *sse) { \ + int sum; \ + int64_t var; \ + uint16_t *src = CONVERT_TO_SHORTPTR(src8); \ + uint16_t *ref = CONVERT_TO_SHORTPTR(ref8); \ + highbd_10_variance_avx2( \ + src, src_stride, ref, ref_stride, w, h, sse, &sum, \ + aom_highbd_calc##block_size##x##block_size##var_avx2, block_size); \ + var = (int64_t)(*sse) - (((int64_t)sum * sum) >> shift); \ + return (var >= 0) ? (uint32_t)var : 0; \ + } + +VAR_FN(128, 128, 16, 14); +VAR_FN(128, 64, 16, 13); +VAR_FN(64, 128, 16, 13); +VAR_FN(64, 64, 16, 12); +VAR_FN(64, 32, 16, 11); +VAR_FN(32, 64, 16, 11); +VAR_FN(32, 32, 16, 10); +VAR_FN(32, 16, 16, 9); +VAR_FN(16, 32, 16, 9); +VAR_FN(16, 16, 16, 8); +VAR_FN(16, 8, 8, 7); +VAR_FN(8, 16, 8, 7); +VAR_FN(8, 8, 8, 6); +VAR_FN(16, 4, 16, 6); +VAR_FN(8, 32, 8, 8); +VAR_FN(32, 8, 8, 8); +VAR_FN(16, 64, 16, 10); +VAR_FN(64, 16, 16, 10); + +#undef VAR_FN |