ref: bca4564683a35c795973ce2a318cc4f1391f9bbb
dir: /vpx_dsp/x86/highbd_convolve_avx2.c/
/*
* Copyright (c) 2017 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>
#include "./vpx_dsp_rtcd.h"
#include "vpx_dsp/x86/convolve.h"
// -----------------------------------------------------------------------------
// Copy and average
void vpx_highbd_convolve_copy_avx2(const uint8_t *src8, ptrdiff_t src_stride,
uint8_t *dst8, ptrdiff_t dst_stride,
const int16_t *filter_x, int filter_x_stride,
const int16_t *filter_y, int filter_y_stride,
int width, int h, int bd) {
const uint16_t *src = CAST_TO_SHORTPTR(src8);
uint16_t *dst = CAST_TO_SHORTPTR(dst8);
(void)filter_x;
(void)filter_y;
(void)filter_x_stride;
(void)filter_y_stride;
(void)bd;
assert(width % 4 == 0);
if (width > 32) { // width = 64
do {
const __m256i p0 = _mm256_loadu_si256((const __m256i *)src);
const __m256i p1 = _mm256_loadu_si256((const __m256i *)(src + 16));
const __m256i p2 = _mm256_loadu_si256((const __m256i *)(src + 32));
const __m256i p3 = _mm256_loadu_si256((const __m256i *)(src + 48));
src += src_stride;
_mm256_storeu_si256((__m256i *)dst, p0);
_mm256_storeu_si256((__m256i *)(dst + 16), p1);
_mm256_storeu_si256((__m256i *)(dst + 32), p2);
_mm256_storeu_si256((__m256i *)(dst + 48), p3);
dst += dst_stride;
h--;
} while (h > 0);
} else if (width > 16) { // width = 32
do {
const __m256i p0 = _mm256_loadu_si256((const __m256i *)src);
const __m256i p1 = _mm256_loadu_si256((const __m256i *)(src + 16));
src += src_stride;
_mm256_storeu_si256((__m256i *)dst, p0);
_mm256_storeu_si256((__m256i *)(dst + 16), p1);
dst += dst_stride;
h--;
} while (h > 0);
} else if (width > 8) { // width = 16
__m256i p0, p1;
do {
p0 = _mm256_loadu_si256((const __m256i *)src);
src += src_stride;
p1 = _mm256_loadu_si256((const __m256i *)src);
src += src_stride;
_mm256_storeu_si256((__m256i *)dst, p0);
dst += dst_stride;
_mm256_storeu_si256((__m256i *)dst, p1);
dst += dst_stride;
h -= 2;
} while (h > 0);
} else if (width > 4) { // width = 8
__m128i p0, p1;
do {
p0 = _mm_loadu_si128((const __m128i *)src);
src += src_stride;
p1 = _mm_loadu_si128((const __m128i *)src);
src += src_stride;
_mm_storeu_si128((__m128i *)dst, p0);
dst += dst_stride;
_mm_storeu_si128((__m128i *)dst, p1);
dst += dst_stride;
h -= 2;
} while (h > 0);
} else { // width = 4
__m128i p0, p1;
do {
p0 = _mm_loadl_epi64((const __m128i *)src);
src += src_stride;
p1 = _mm_loadl_epi64((const __m128i *)src);
src += src_stride;
_mm_storel_epi64((__m128i *)dst, p0);
dst += dst_stride;
_mm_storel_epi64((__m128i *)dst, p1);
dst += dst_stride;
h -= 2;
} while (h > 0);
}
}
void vpx_highbd_convolve_avg_avx2(const uint8_t *src8, ptrdiff_t src_stride,
uint8_t *dst8, ptrdiff_t dst_stride,
const int16_t *filter_x, int filter_x_stride,
const int16_t *filter_y, int filter_y_stride,
int width, int h, int bd) {
uint16_t *src = CAST_TO_SHORTPTR(src8);
uint16_t *dst = CAST_TO_SHORTPTR(dst8);
(void)filter_x;
(void)filter_y;
(void)filter_x_stride;
(void)filter_y_stride;
(void)bd;
assert(width % 4 == 0);
if (width > 32) { // width = 64
__m256i p0, p1, p2, p3, u0, u1, u2, u3;
do {
p0 = _mm256_loadu_si256((const __m256i *)src);
p1 = _mm256_loadu_si256((const __m256i *)(src + 16));
p2 = _mm256_loadu_si256((const __m256i *)(src + 32));
p3 = _mm256_loadu_si256((const __m256i *)(src + 48));
src += src_stride;
u0 = _mm256_loadu_si256((const __m256i *)dst);
u1 = _mm256_loadu_si256((const __m256i *)(dst + 16));
u2 = _mm256_loadu_si256((const __m256i *)(dst + 32));
u3 = _mm256_loadu_si256((const __m256i *)(dst + 48));
_mm256_storeu_si256((__m256i *)dst, _mm256_avg_epu16(p0, u0));
_mm256_storeu_si256((__m256i *)(dst + 16), _mm256_avg_epu16(p1, u1));
_mm256_storeu_si256((__m256i *)(dst + 32), _mm256_avg_epu16(p2, u2));
_mm256_storeu_si256((__m256i *)(dst + 48), _mm256_avg_epu16(p3, u3));
dst += dst_stride;
h--;
} while (h > 0);
} else if (width > 16) { // width = 32
__m256i p0, p1, u0, u1;
do {
p0 = _mm256_loadu_si256((const __m256i *)src);
p1 = _mm256_loadu_si256((const __m256i *)(src + 16));
src += src_stride;
u0 = _mm256_loadu_si256((const __m256i *)dst);
u1 = _mm256_loadu_si256((const __m256i *)(dst + 16));
_mm256_storeu_si256((__m256i *)dst, _mm256_avg_epu16(p0, u0));
_mm256_storeu_si256((__m256i *)(dst + 16), _mm256_avg_epu16(p1, u1));
dst += dst_stride;
h--;
} while (h > 0);
} else if (width > 8) { // width = 16
__m256i p0, p1, u0, u1;
do {
p0 = _mm256_loadu_si256((const __m256i *)src);
p1 = _mm256_loadu_si256((const __m256i *)(src + src_stride));
src += src_stride << 1;
u0 = _mm256_loadu_si256((const __m256i *)dst);
u1 = _mm256_loadu_si256((const __m256i *)(dst + dst_stride));
_mm256_storeu_si256((__m256i *)dst, _mm256_avg_epu16(p0, u0));
_mm256_storeu_si256((__m256i *)(dst + dst_stride),
_mm256_avg_epu16(p1, u1));
dst += dst_stride << 1;
h -= 2;
} while (h > 0);
} else if (width > 4) { // width = 8
__m128i p0, p1, u0, u1;
do {
p0 = _mm_loadu_si128((const __m128i *)src);
p1 = _mm_loadu_si128((const __m128i *)(src + src_stride));
src += src_stride << 1;
u0 = _mm_loadu_si128((const __m128i *)dst);
u1 = _mm_loadu_si128((const __m128i *)(dst + dst_stride));
_mm_storeu_si128((__m128i *)dst, _mm_avg_epu16(p0, u0));
_mm_storeu_si128((__m128i *)(dst + dst_stride), _mm_avg_epu16(p1, u1));
dst += dst_stride << 1;
h -= 2;
} while (h > 0);
} else { // width = 4
__m128i p0, p1, u0, u1;
do {
p0 = _mm_loadl_epi64((const __m128i *)src);
p1 = _mm_loadl_epi64((const __m128i *)(src + src_stride));
src += src_stride << 1;
u0 = _mm_loadl_epi64((const __m128i *)dst);
u1 = _mm_loadl_epi64((const __m128i *)(dst + dst_stride));
_mm_storel_epi64((__m128i *)dst, _mm_avg_epu16(u0, p0));
_mm_storel_epi64((__m128i *)(dst + dst_stride), _mm_avg_epu16(u1, p1));
dst += dst_stride << 1;
h -= 2;
} while (h > 0);
}
}