| /* |
| * 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(8, 32, 8, 8); |
| VAR_FN(32, 8, 8, 8); |
| VAR_FN(16, 64, 16, 10); |
| VAR_FN(64, 16, 16, 10); |
| #if CONFIG_FLEX_PARTITION |
| VAR_FN(64, 8, 8, 9); |
| VAR_FN(8, 64, 8, 9); |
| #endif // CONFIG_FLEX_PARTITION |
| |
| #undef VAR_FN |
