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/*
* 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>
#include "config/aom_dsp_rtcd.h"
static unsigned int sad32x32(const uint8_t *src_ptr, int src_stride,
const uint8_t *ref_ptr, int ref_stride) {
__m256i s1, s2, r1, r2;
__m256i sum = _mm256_setzero_si256();
__m128i sum_i128;
int i;
for (i = 0; i < 16; ++i) {
r1 = _mm256_loadu_si256((__m256i const *)ref_ptr);
r2 = _mm256_loadu_si256((__m256i const *)(ref_ptr + ref_stride));
s1 = _mm256_sad_epu8(r1, _mm256_loadu_si256((__m256i const *)src_ptr));
s2 = _mm256_sad_epu8(
r2, _mm256_loadu_si256((__m256i const *)(src_ptr + src_stride)));
sum = _mm256_add_epi32(sum, _mm256_add_epi32(s1, s2));
ref_ptr += ref_stride << 1;
src_ptr += src_stride << 1;
}
sum = _mm256_add_epi32(sum, _mm256_srli_si256(sum, 8));
sum_i128 = _mm_add_epi32(_mm256_extracti128_si256(sum, 1),
_mm256_castsi256_si128(sum));
return (unsigned int)_mm_cvtsi128_si32(sum_i128);
}
static unsigned int sad64x32(const uint8_t *src_ptr, int src_stride,
const uint8_t *ref_ptr, int ref_stride) {
unsigned int half_width = 32;
uint32_t sum = sad32x32(src_ptr, src_stride, ref_ptr, ref_stride);
src_ptr += half_width;
ref_ptr += half_width;
sum += sad32x32(src_ptr, src_stride, ref_ptr, ref_stride);
return sum;
}
static unsigned int sad64x64(const uint8_t *src_ptr, int src_stride,
const uint8_t *ref_ptr, int ref_stride) {
uint32_t sum = sad64x32(src_ptr, src_stride, ref_ptr, ref_stride);
src_ptr += src_stride << 5;
ref_ptr += ref_stride << 5;
sum += sad64x32(src_ptr, src_stride, ref_ptr, ref_stride);
return sum;
}
unsigned int aom_sad128x64_avx2(const uint8_t *src_ptr, int src_stride,
const uint8_t *ref_ptr, int ref_stride) {
unsigned int half_width = 64;
uint32_t sum = sad64x64(src_ptr, src_stride, ref_ptr, ref_stride);
src_ptr += half_width;
ref_ptr += half_width;
sum += sad64x64(src_ptr, src_stride, ref_ptr, ref_stride);
return sum;
}
unsigned int aom_sad64x128_avx2(const uint8_t *src_ptr, int src_stride,
const uint8_t *ref_ptr, int ref_stride) {
uint32_t sum = sad64x64(src_ptr, src_stride, ref_ptr, ref_stride);
src_ptr += src_stride << 6;
ref_ptr += ref_stride << 6;
sum += sad64x64(src_ptr, src_stride, ref_ptr, ref_stride);
return sum;
}
unsigned int aom_sad128x128_avx2(const uint8_t *src_ptr, int src_stride,
const uint8_t *ref_ptr, int ref_stride) {
uint32_t sum = aom_sad128x64_avx2(src_ptr, src_stride, ref_ptr, ref_stride);
src_ptr += src_stride << 6;
ref_ptr += ref_stride << 6;
sum += aom_sad128x64_avx2(src_ptr, src_stride, ref_ptr, ref_stride);
return sum;
}
unsigned int aom_sad_skip_128x64_avx2(const uint8_t *src_ptr, int src_stride,
const uint8_t *ref_ptr, int ref_stride) {
const uint32_t half_width = 64;
uint32_t sum = sad64x32(src_ptr, src_stride * 2, ref_ptr, ref_stride * 2);
src_ptr += half_width;
ref_ptr += half_width;
sum += sad64x32(src_ptr, src_stride * 2, ref_ptr, ref_stride * 2);
return 2 * sum;
}
unsigned int aom_sad_skip_64x128_avx2(const uint8_t *src_ptr, int src_stride,
const uint8_t *ref_ptr, int ref_stride) {
const uint32_t sum =
sad64x64(src_ptr, 2 * src_stride, ref_ptr, 2 * ref_stride);
return 2 * sum;
}
unsigned int aom_sad_skip_128x128_avx2(const uint8_t *src_ptr, int src_stride,
const uint8_t *ref_ptr, int ref_stride) {
const uint32_t sum =
aom_sad128x64_avx2(src_ptr, 2 * src_stride, ref_ptr, 2 * ref_stride);
return 2 * sum;
}
static unsigned int sad_w64_avg_avx2(const uint8_t *src_ptr, int src_stride,
const uint8_t *ref_ptr, int ref_stride,
const int h, const uint8_t *second_pred,
const int second_pred_stride) {
int i;
__m256i sad1_reg, sad2_reg, ref1_reg, ref2_reg;
__m256i sum_sad = _mm256_setzero_si256();
__m256i sum_sad_h;
__m128i sum_sad128;
for (i = 0; i < h; i++) {
ref1_reg = _mm256_loadu_si256((__m256i const *)ref_ptr);
ref2_reg = _mm256_loadu_si256((__m256i const *)(ref_ptr + 32));
ref1_reg = _mm256_avg_epu8(
ref1_reg, _mm256_loadu_si256((__m256i const *)second_pred));
ref2_reg = _mm256_avg_epu8(
ref2_reg, _mm256_loadu_si256((__m256i const *)(second_pred + 32)));
sad1_reg =
_mm256_sad_epu8(ref1_reg, _mm256_loadu_si256((__m256i const *)src_ptr));
sad2_reg = _mm256_sad_epu8(
ref2_reg, _mm256_loadu_si256((__m256i const *)(src_ptr + 32)));
sum_sad = _mm256_add_epi32(sum_sad, _mm256_add_epi32(sad1_reg, sad2_reg));
ref_ptr += ref_stride;
src_ptr += src_stride;
second_pred += second_pred_stride;
}
sum_sad_h = _mm256_srli_si256(sum_sad, 8);
sum_sad = _mm256_add_epi32(sum_sad, sum_sad_h);
sum_sad128 = _mm256_extracti128_si256(sum_sad, 1);
sum_sad128 = _mm_add_epi32(_mm256_castsi256_si128(sum_sad), sum_sad128);
return (unsigned int)_mm_cvtsi128_si32(sum_sad128);
}
unsigned int aom_sad64x128_avg_avx2(const uint8_t *src_ptr, int src_stride,
const uint8_t *ref_ptr, int ref_stride,
const uint8_t *second_pred) {
uint32_t sum = sad_w64_avg_avx2(src_ptr, src_stride, ref_ptr, ref_stride, 64,
second_pred, 64);
src_ptr += src_stride << 6;
ref_ptr += ref_stride << 6;
second_pred += 64 << 6;
sum += sad_w64_avg_avx2(src_ptr, src_stride, ref_ptr, ref_stride, 64,
second_pred, 64);
return sum;
}
unsigned int aom_sad128x64_avg_avx2(const uint8_t *src_ptr, int src_stride,
const uint8_t *ref_ptr, int ref_stride,
const uint8_t *second_pred) {
unsigned int half_width = 64;
uint32_t sum = sad_w64_avg_avx2(src_ptr, src_stride, ref_ptr, ref_stride, 64,
second_pred, 128);
src_ptr += half_width;
ref_ptr += half_width;
second_pred += half_width;
sum += sad_w64_avg_avx2(src_ptr, src_stride, ref_ptr, ref_stride, 64,
second_pred, 128);
return sum;
}
unsigned int aom_sad128x128_avg_avx2(const uint8_t *src_ptr, int src_stride,
const uint8_t *ref_ptr, int ref_stride,
const uint8_t *second_pred) {
uint32_t sum = aom_sad128x64_avg_avx2(src_ptr, src_stride, ref_ptr,
ref_stride, second_pred);
src_ptr += src_stride << 6;
ref_ptr += ref_stride << 6;
second_pred += 128 << 6;
sum += aom_sad128x64_avg_avx2(src_ptr, src_stride, ref_ptr, ref_stride,
second_pred);
return sum;
}