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/*
* Copyright (c) 2022 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 <assert.h>
#include <immintrin.h>
#include "./vpx_dsp_rtcd.h"
#include "vpx/vpx_integer.h"
static VPX_FORCE_INLINE void subtract32_avx2(int16_t *diff_ptr,
const uint8_t *src_ptr,
const uint8_t *pred_ptr) {
const __m256i s = _mm256_lddqu_si256((const __m256i *)src_ptr);
const __m256i p = _mm256_lddqu_si256((const __m256i *)pred_ptr);
const __m256i s_0 = _mm256_cvtepu8_epi16(_mm256_castsi256_si128(s));
const __m256i s_1 = _mm256_cvtepu8_epi16(_mm256_extracti128_si256(s, 1));
const __m256i p_0 = _mm256_cvtepu8_epi16(_mm256_castsi256_si128(p));
const __m256i p_1 = _mm256_cvtepu8_epi16(_mm256_extracti128_si256(p, 1));
const __m256i d_0 = _mm256_sub_epi16(s_0, p_0);
const __m256i d_1 = _mm256_sub_epi16(s_1, p_1);
_mm256_storeu_si256((__m256i *)diff_ptr, d_0);
_mm256_storeu_si256((__m256i *)(diff_ptr + 16), d_1);
}
static VPX_FORCE_INLINE void subtract_block_16xn_avx2(
int rows, int16_t *diff_ptr, ptrdiff_t diff_stride, const uint8_t *src_ptr,
ptrdiff_t src_stride, const uint8_t *pred_ptr, ptrdiff_t pred_stride) {
int j;
for (j = 0; j < rows; ++j) {
const __m128i s = _mm_lddqu_si128((const __m128i *)src_ptr);
const __m128i p = _mm_lddqu_si128((const __m128i *)pred_ptr);
const __m256i s_0 = _mm256_cvtepu8_epi16(s);
const __m256i p_0 = _mm256_cvtepu8_epi16(p);
const __m256i d_0 = _mm256_sub_epi16(s_0, p_0);
_mm256_storeu_si256((__m256i *)diff_ptr, d_0);
src_ptr += src_stride;
pred_ptr += pred_stride;
diff_ptr += diff_stride;
}
}
static VPX_FORCE_INLINE void subtract_block_32xn_avx2(
int rows, int16_t *diff_ptr, ptrdiff_t diff_stride, const uint8_t *src_ptr,
ptrdiff_t src_stride, const uint8_t *pred_ptr, ptrdiff_t pred_stride) {
int j;
for (j = 0; j < rows; ++j) {
subtract32_avx2(diff_ptr, src_ptr, pred_ptr);
src_ptr += src_stride;
pred_ptr += pred_stride;
diff_ptr += diff_stride;
}
}
static VPX_FORCE_INLINE void subtract_block_64xn_avx2(
int rows, int16_t *diff_ptr, ptrdiff_t diff_stride, const uint8_t *src_ptr,
ptrdiff_t src_stride, const uint8_t *pred_ptr, ptrdiff_t pred_stride) {
int j;
for (j = 0; j < rows; ++j) {
subtract32_avx2(diff_ptr, src_ptr, pred_ptr);
subtract32_avx2(diff_ptr + 32, src_ptr + 32, pred_ptr + 32);
src_ptr += src_stride;
pred_ptr += pred_stride;
diff_ptr += diff_stride;
}
}
void vpx_subtract_block_avx2(int rows, int cols, int16_t *diff_ptr,
ptrdiff_t diff_stride, const uint8_t *src_ptr,
ptrdiff_t src_stride, const uint8_t *pred_ptr,
ptrdiff_t pred_stride) {
switch (cols) {
case 16:
subtract_block_16xn_avx2(rows, diff_ptr, diff_stride, src_ptr, src_stride,
pred_ptr, pred_stride);
break;
case 32:
subtract_block_32xn_avx2(rows, diff_ptr, diff_stride, src_ptr, src_stride,
pred_ptr, pred_stride);
break;
case 64:
subtract_block_64xn_avx2(rows, diff_ptr, diff_stride, src_ptr, src_stride,
pred_ptr, pred_stride);
break;
default:
vpx_subtract_block_sse2(rows, cols, diff_ptr, diff_stride, src_ptr,
src_stride, pred_ptr, pred_stride);
break;
}
}
#if CONFIG_VP9_HIGHBITDEPTH
void vpx_highbd_subtract_block_avx2(int rows, int cols, int16_t *diff_ptr,
ptrdiff_t diff_stride,
const uint8_t *src8_ptr,
ptrdiff_t src_stride,
const uint8_t *pred8_ptr,
ptrdiff_t pred_stride, int bd) {
uint16_t *src_ptr = CONVERT_TO_SHORTPTR(src8_ptr);
uint16_t *pred_ptr = CONVERT_TO_SHORTPTR(pred8_ptr);
(void)bd;
if (cols == 64) {
int j = rows;
do {
const __m256i s0 = _mm256_lddqu_si256((const __m256i *)src_ptr);
const __m256i s1 = _mm256_lddqu_si256((const __m256i *)(src_ptr + 16));
const __m256i s2 = _mm256_lddqu_si256((const __m256i *)(src_ptr + 32));
const __m256i s3 = _mm256_lddqu_si256((const __m256i *)(src_ptr + 48));
const __m256i p0 = _mm256_lddqu_si256((const __m256i *)pred_ptr);
const __m256i p1 = _mm256_lddqu_si256((const __m256i *)(pred_ptr + 16));
const __m256i p2 = _mm256_lddqu_si256((const __m256i *)(pred_ptr + 32));
const __m256i p3 = _mm256_lddqu_si256((const __m256i *)(pred_ptr + 48));
const __m256i d0 = _mm256_sub_epi16(s0, p0);
const __m256i d1 = _mm256_sub_epi16(s1, p1);
const __m256i d2 = _mm256_sub_epi16(s2, p2);
const __m256i d3 = _mm256_sub_epi16(s3, p3);
_mm256_storeu_si256((__m256i *)diff_ptr, d0);
_mm256_storeu_si256((__m256i *)(diff_ptr + 16), d1);
_mm256_storeu_si256((__m256i *)(diff_ptr + 32), d2);
_mm256_storeu_si256((__m256i *)(diff_ptr + 48), d3);
src_ptr += src_stride;
pred_ptr += pred_stride;
diff_ptr += diff_stride;
} while (--j != 0);
} else if (cols == 32) {
int j = rows;
do {
const __m256i s0 = _mm256_lddqu_si256((const __m256i *)src_ptr);
const __m256i s1 = _mm256_lddqu_si256((const __m256i *)(src_ptr + 16));
const __m256i p0 = _mm256_lddqu_si256((const __m256i *)pred_ptr);
const __m256i p1 = _mm256_lddqu_si256((const __m256i *)(pred_ptr + 16));
const __m256i d0 = _mm256_sub_epi16(s0, p0);
const __m256i d1 = _mm256_sub_epi16(s1, p1);
_mm256_storeu_si256((__m256i *)diff_ptr, d0);
_mm256_storeu_si256((__m256i *)(diff_ptr + 16), d1);
src_ptr += src_stride;
pred_ptr += pred_stride;
diff_ptr += diff_stride;
} while (--j != 0);
} else if (cols == 16) {
int j = rows;
do {
const __m256i s0 = _mm256_lddqu_si256((const __m256i *)src_ptr);
const __m256i s1 =
_mm256_lddqu_si256((const __m256i *)(src_ptr + src_stride));
const __m256i p0 = _mm256_lddqu_si256((const __m256i *)pred_ptr);
const __m256i p1 =
_mm256_lddqu_si256((const __m256i *)(pred_ptr + pred_stride));
const __m256i d0 = _mm256_sub_epi16(s0, p0);
const __m256i d1 = _mm256_sub_epi16(s1, p1);
_mm256_storeu_si256((__m256i *)diff_ptr, d0);
_mm256_storeu_si256((__m256i *)(diff_ptr + diff_stride), d1);
src_ptr += src_stride << 1;
pred_ptr += pred_stride << 1;
diff_ptr += diff_stride << 1;
j -= 2;
} while (j != 0);
} else if (cols == 8) {
int j = rows;
do {
const __m128i s0 = _mm_lddqu_si128((const __m128i *)src_ptr);
const __m128i s1 =
_mm_lddqu_si128((const __m128i *)(src_ptr + src_stride));
const __m128i p0 = _mm_lddqu_si128((const __m128i *)pred_ptr);
const __m128i p1 =
_mm_lddqu_si128((const __m128i *)(pred_ptr + pred_stride));
const __m128i d0 = _mm_sub_epi16(s0, p0);
const __m128i d1 = _mm_sub_epi16(s1, p1);
_mm_storeu_si128((__m128i *)diff_ptr, d0);
_mm_storeu_si128((__m128i *)(diff_ptr + diff_stride), d1);
src_ptr += src_stride << 1;
pred_ptr += pred_stride << 1;
diff_ptr += diff_stride << 1;
j -= 2;
} while (j != 0);
} else {
int j = rows;
assert(cols == 4);
do {
const __m128i s0 = _mm_loadl_epi64((const __m128i *)src_ptr);
const __m128i s1 =
_mm_loadl_epi64((const __m128i *)(src_ptr + src_stride));
const __m128i p0 = _mm_loadl_epi64((const __m128i *)pred_ptr);
const __m128i p1 =
_mm_loadl_epi64((const __m128i *)(pred_ptr + pred_stride));
const __m128i d0 = _mm_sub_epi16(s0, p0);
const __m128i d1 = _mm_sub_epi16(s1, p1);
_mm_storel_epi64((__m128i *)diff_ptr, d0);
_mm_storel_epi64((__m128i *)(diff_ptr + diff_stride), d1);
src_ptr += src_stride << 1;
pred_ptr += pred_stride << 1;
diff_ptr += diff_stride << 1;
j -= 2;
} while (j != 0);
}
}
#endif // CONFIG_VP9_HIGHBITDEPTH
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