166 строки
6.4 KiB
C
166 строки
6.4 KiB
C
/*
|
|
* Copyright (c) 2016, 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 <immintrin.h> // AVX2
|
|
#include "./aom_dsp_rtcd.h"
|
|
#include "aom/aom_integer.h"
|
|
|
|
void aom_sad32x32x4d_avx2(const uint8_t *src, int src_stride,
|
|
const uint8_t *const ref[4], int ref_stride,
|
|
uint32_t res[4]) {
|
|
__m256i src_reg, ref0_reg, ref1_reg, ref2_reg, ref3_reg;
|
|
__m256i sum_ref0, sum_ref1, sum_ref2, sum_ref3;
|
|
__m256i sum_mlow, sum_mhigh;
|
|
int i;
|
|
const uint8_t *ref0, *ref1, *ref2, *ref3;
|
|
|
|
ref0 = ref[0];
|
|
ref1 = ref[1];
|
|
ref2 = ref[2];
|
|
ref3 = ref[3];
|
|
sum_ref0 = _mm256_set1_epi16(0);
|
|
sum_ref1 = _mm256_set1_epi16(0);
|
|
sum_ref2 = _mm256_set1_epi16(0);
|
|
sum_ref3 = _mm256_set1_epi16(0);
|
|
for (i = 0; i < 32; i++) {
|
|
// load src and all refs
|
|
src_reg = _mm256_loadu_si256((const __m256i *)src);
|
|
ref0_reg = _mm256_loadu_si256((const __m256i *)ref0);
|
|
ref1_reg = _mm256_loadu_si256((const __m256i *)ref1);
|
|
ref2_reg = _mm256_loadu_si256((const __m256i *)ref2);
|
|
ref3_reg = _mm256_loadu_si256((const __m256i *)ref3);
|
|
// sum of the absolute differences between every ref-i to src
|
|
ref0_reg = _mm256_sad_epu8(ref0_reg, src_reg);
|
|
ref1_reg = _mm256_sad_epu8(ref1_reg, src_reg);
|
|
ref2_reg = _mm256_sad_epu8(ref2_reg, src_reg);
|
|
ref3_reg = _mm256_sad_epu8(ref3_reg, src_reg);
|
|
// sum every ref-i
|
|
sum_ref0 = _mm256_add_epi32(sum_ref0, ref0_reg);
|
|
sum_ref1 = _mm256_add_epi32(sum_ref1, ref1_reg);
|
|
sum_ref2 = _mm256_add_epi32(sum_ref2, ref2_reg);
|
|
sum_ref3 = _mm256_add_epi32(sum_ref3, ref3_reg);
|
|
|
|
src += src_stride;
|
|
ref0 += ref_stride;
|
|
ref1 += ref_stride;
|
|
ref2 += ref_stride;
|
|
ref3 += ref_stride;
|
|
}
|
|
{
|
|
__m128i sum;
|
|
// in sum_ref-i the result is saved in the first 4 bytes
|
|
// the other 4 bytes are zeroed.
|
|
// sum_ref1 and sum_ref3 are shifted left by 4 bytes
|
|
sum_ref1 = _mm256_slli_si256(sum_ref1, 4);
|
|
sum_ref3 = _mm256_slli_si256(sum_ref3, 4);
|
|
|
|
// merge sum_ref0 and sum_ref1 also sum_ref2 and sum_ref3
|
|
sum_ref0 = _mm256_or_si256(sum_ref0, sum_ref1);
|
|
sum_ref2 = _mm256_or_si256(sum_ref2, sum_ref3);
|
|
|
|
// merge every 64 bit from each sum_ref-i
|
|
sum_mlow = _mm256_unpacklo_epi64(sum_ref0, sum_ref2);
|
|
sum_mhigh = _mm256_unpackhi_epi64(sum_ref0, sum_ref2);
|
|
|
|
// add the low 64 bit to the high 64 bit
|
|
sum_mlow = _mm256_add_epi32(sum_mlow, sum_mhigh);
|
|
|
|
// add the low 128 bit to the high 128 bit
|
|
sum = _mm_add_epi32(_mm256_castsi256_si128(sum_mlow),
|
|
_mm256_extractf128_si256(sum_mlow, 1));
|
|
|
|
_mm_storeu_si128((__m128i *)(res), sum);
|
|
}
|
|
}
|
|
|
|
void aom_sad64x64x4d_avx2(const uint8_t *src, int src_stride,
|
|
const uint8_t *const ref[4], int ref_stride,
|
|
uint32_t res[4]) {
|
|
__m256i src_reg, srcnext_reg, ref0_reg, ref0next_reg;
|
|
__m256i ref1_reg, ref1next_reg, ref2_reg, ref2next_reg;
|
|
__m256i ref3_reg, ref3next_reg;
|
|
__m256i sum_ref0, sum_ref1, sum_ref2, sum_ref3;
|
|
__m256i sum_mlow, sum_mhigh;
|
|
int i;
|
|
const uint8_t *ref0, *ref1, *ref2, *ref3;
|
|
|
|
ref0 = ref[0];
|
|
ref1 = ref[1];
|
|
ref2 = ref[2];
|
|
ref3 = ref[3];
|
|
sum_ref0 = _mm256_set1_epi16(0);
|
|
sum_ref1 = _mm256_set1_epi16(0);
|
|
sum_ref2 = _mm256_set1_epi16(0);
|
|
sum_ref3 = _mm256_set1_epi16(0);
|
|
for (i = 0; i < 64; i++) {
|
|
// load 64 bytes from src and all refs
|
|
src_reg = _mm256_loadu_si256((const __m256i *)src);
|
|
srcnext_reg = _mm256_loadu_si256((const __m256i *)(src + 32));
|
|
ref0_reg = _mm256_loadu_si256((const __m256i *)ref0);
|
|
ref0next_reg = _mm256_loadu_si256((const __m256i *)(ref0 + 32));
|
|
ref1_reg = _mm256_loadu_si256((const __m256i *)ref1);
|
|
ref1next_reg = _mm256_loadu_si256((const __m256i *)(ref1 + 32));
|
|
ref2_reg = _mm256_loadu_si256((const __m256i *)ref2);
|
|
ref2next_reg = _mm256_loadu_si256((const __m256i *)(ref2 + 32));
|
|
ref3_reg = _mm256_loadu_si256((const __m256i *)ref3);
|
|
ref3next_reg = _mm256_loadu_si256((const __m256i *)(ref3 + 32));
|
|
// sum of the absolute differences between every ref-i to src
|
|
ref0_reg = _mm256_sad_epu8(ref0_reg, src_reg);
|
|
ref1_reg = _mm256_sad_epu8(ref1_reg, src_reg);
|
|
ref2_reg = _mm256_sad_epu8(ref2_reg, src_reg);
|
|
ref3_reg = _mm256_sad_epu8(ref3_reg, src_reg);
|
|
ref0next_reg = _mm256_sad_epu8(ref0next_reg, srcnext_reg);
|
|
ref1next_reg = _mm256_sad_epu8(ref1next_reg, srcnext_reg);
|
|
ref2next_reg = _mm256_sad_epu8(ref2next_reg, srcnext_reg);
|
|
ref3next_reg = _mm256_sad_epu8(ref3next_reg, srcnext_reg);
|
|
|
|
// sum every ref-i
|
|
sum_ref0 = _mm256_add_epi32(sum_ref0, ref0_reg);
|
|
sum_ref1 = _mm256_add_epi32(sum_ref1, ref1_reg);
|
|
sum_ref2 = _mm256_add_epi32(sum_ref2, ref2_reg);
|
|
sum_ref3 = _mm256_add_epi32(sum_ref3, ref3_reg);
|
|
sum_ref0 = _mm256_add_epi32(sum_ref0, ref0next_reg);
|
|
sum_ref1 = _mm256_add_epi32(sum_ref1, ref1next_reg);
|
|
sum_ref2 = _mm256_add_epi32(sum_ref2, ref2next_reg);
|
|
sum_ref3 = _mm256_add_epi32(sum_ref3, ref3next_reg);
|
|
src += src_stride;
|
|
ref0 += ref_stride;
|
|
ref1 += ref_stride;
|
|
ref2 += ref_stride;
|
|
ref3 += ref_stride;
|
|
}
|
|
{
|
|
__m128i sum;
|
|
|
|
// in sum_ref-i the result is saved in the first 4 bytes
|
|
// the other 4 bytes are zeroed.
|
|
// sum_ref1 and sum_ref3 are shifted left by 4 bytes
|
|
sum_ref1 = _mm256_slli_si256(sum_ref1, 4);
|
|
sum_ref3 = _mm256_slli_si256(sum_ref3, 4);
|
|
|
|
// merge sum_ref0 and sum_ref1 also sum_ref2 and sum_ref3
|
|
sum_ref0 = _mm256_or_si256(sum_ref0, sum_ref1);
|
|
sum_ref2 = _mm256_or_si256(sum_ref2, sum_ref3);
|
|
|
|
// merge every 64 bit from each sum_ref-i
|
|
sum_mlow = _mm256_unpacklo_epi64(sum_ref0, sum_ref2);
|
|
sum_mhigh = _mm256_unpackhi_epi64(sum_ref0, sum_ref2);
|
|
|
|
// add the low 64 bit to the high 64 bit
|
|
sum_mlow = _mm256_add_epi32(sum_mlow, sum_mhigh);
|
|
|
|
// add the low 128 bit to the high 128 bit
|
|
sum = _mm_add_epi32(_mm256_castsi256_si128(sum_mlow),
|
|
_mm256_extractf128_si256(sum_mlow, 1));
|
|
|
|
_mm_storeu_si128((__m128i *)(res), sum);
|
|
}
|
|
}
|