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/*
* Loongson LSX/LASX optimized h264idct
*
* Copyright (c) 2023 Loongson Technology Corporation Limited
* Contributed by Shiyou Yin <yinshiyou-hf@loongson.cn>
* Xiwei Gu <guxiwei-hf@loongson.cn>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "h264dsp_loongarch.h"
#include "libavcodec/bit_depth_template.c"
void ff_h264_idct_add16_8_lsx(uint8_t *dst, const int32_t *blk_offset,
int16_t *block, int32_t dst_stride,
const uint8_t nzc[15 * 8])
{
int32_t i;
for (i = 0; i < 16; i++) {
int32_t nnz = nzc[scan8[i]];
if (nnz == 1 && ((dctcoef *) block)[i * 16]) {
ff_h264_idct_dc_add_8_lsx(dst + blk_offset[i],
block + i * 16 * sizeof(pixel),
dst_stride);
} else if (nnz) {
ff_h264_idct_add_8_lsx(dst + blk_offset[i],
block + i * 16 * sizeof(pixel),
dst_stride);
}
}
}
void ff_h264_idct8_add4_8_lsx(uint8_t *dst, const int32_t *blk_offset,
int16_t *block, int32_t dst_stride,
const uint8_t nzc[15 * 8])
{
int32_t cnt;
for (cnt = 0; cnt < 16; cnt += 4) {
int32_t nnz = nzc[scan8[cnt]];
if (nnz == 1 && ((dctcoef *) block)[cnt * 16]) {
ff_h264_idct8_dc_add_8_lsx(dst + blk_offset[cnt],
block + cnt * 16 * sizeof(pixel),
dst_stride);
} else if (nnz) {
ff_h264_idct8_add_8_lsx(dst + blk_offset[cnt],
block + cnt * 16 * sizeof(pixel),
dst_stride);
}
}
}
#if HAVE_LASX
void ff_h264_idct8_add4_8_lasx(uint8_t *dst, const int32_t *blk_offset,
int16_t *block, int32_t dst_stride,
const uint8_t nzc[15 * 8])
{
int32_t cnt;
for (cnt = 0; cnt < 16; cnt += 4) {
int32_t nnz = nzc[scan8[cnt]];
if (nnz == 1 && ((dctcoef *) block)[cnt * 16]) {
ff_h264_idct8_dc_add_8_lasx(dst + blk_offset[cnt],
block + cnt * 16 * sizeof(pixel),
dst_stride);
} else if (nnz) {
ff_h264_idct8_add_8_lasx(dst + blk_offset[cnt],
block + cnt * 16 * sizeof(pixel),
dst_stride);
}
}
}
#endif // #if HAVE_LASX
void ff_h264_idct_add8_8_lsx(uint8_t **dst, const int32_t *blk_offset,
int16_t *block, int32_t dst_stride,
const uint8_t nzc[15 * 8])
{
int32_t i;
for (i = 16; i < 20; i++) {
if (nzc[scan8[i]])
ff_h264_idct_add_8_lsx(dst[0] + blk_offset[i],
block + i * 16 * sizeof(pixel),
dst_stride);
else if (((dctcoef *) block)[i * 16])
ff_h264_idct_dc_add_8_lsx(dst[0] + blk_offset[i],
block + i * 16 * sizeof(pixel),
dst_stride);
}
for (i = 32; i < 36; i++) {
if (nzc[scan8[i]])
ff_h264_idct_add_8_lsx(dst[1] + blk_offset[i],
block + i * 16 * sizeof(pixel),
dst_stride);
else if (((dctcoef *) block)[i * 16])
ff_h264_idct_dc_add_8_lsx(dst[1] + blk_offset[i],
block + i * 16 * sizeof(pixel),
dst_stride);
}
}
void ff_h264_idct_add8_422_8_lsx(uint8_t **dst, const int32_t *blk_offset,
int16_t *block, int32_t dst_stride,
const uint8_t nzc[15 * 8])
{
int32_t i;
for (i = 16; i < 20; i++) {
if (nzc[scan8[i]])
ff_h264_idct_add_8_lsx(dst[0] + blk_offset[i],
block + i * 16 * sizeof(pixel),
dst_stride);
else if (((dctcoef *) block)[i * 16])
ff_h264_idct_dc_add_8_lsx(dst[0] + blk_offset[i],
block + i * 16 * sizeof(pixel),
dst_stride);
}
for (i = 20; i < 24; i++) {
if (nzc[scan8[i + 4]])
ff_h264_idct_add_8_lsx(dst[0] + blk_offset[i + 4],
block + i * 16 * sizeof(pixel),
dst_stride);
else if (((dctcoef *) block)[i * 16])
ff_h264_idct_dc_add_8_lsx(dst[0] + blk_offset[i + 4],
block + i * 16 * sizeof(pixel),
dst_stride);
}
for (i = 32; i < 36; i++) {
if (nzc[scan8[i]])
ff_h264_idct_add_8_lsx(dst[1] + blk_offset[i],
block + i * 16 * sizeof(pixel),
dst_stride);
else if (((dctcoef *) block)[i * 16])
ff_h264_idct_dc_add_8_lsx(dst[1] + blk_offset[i],
block + i * 16 * sizeof(pixel),
dst_stride);
}
for (i = 36; i < 40; i++) {
if (nzc[scan8[i + 4]])
ff_h264_idct_add_8_lsx(dst[1] + blk_offset[i + 4],
block + i * 16 * sizeof(pixel),
dst_stride);
else if (((dctcoef *) block)[i * 16])
ff_h264_idct_dc_add_8_lsx(dst[1] + blk_offset[i + 4],
block + i * 16 * sizeof(pixel),
dst_stride);
}
}
void ff_h264_idct_add16_intra_8_lsx(uint8_t *dst, const int32_t *blk_offset,
int16_t *block, int32_t dst_stride,
const uint8_t nzc[15 * 8])
{
int32_t i;
for (i = 0; i < 16; i++) {
if (nzc[scan8[i]])
ff_h264_idct_add_8_lsx(dst + blk_offset[i],
block + i * 16 * sizeof(pixel), dst_stride);
else if (((dctcoef *) block)[i * 16])
ff_h264_idct_dc_add_8_lsx(dst + blk_offset[i],
block + i * 16 * sizeof(pixel),
dst_stride);
}
}
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