mirror of https://git.ffmpeg.org/ffmpeg.git
58 lines
2.2 KiB
C
58 lines
2.2 KiB
C
/*
|
|
* Loongson LSX optimized swscale
|
|
*
|
|
* Copyright (c) 2023 Loongson Technology Corporation Limited
|
|
* Contributed by Lu Wang <wanglu@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 "swscale_loongarch.h"
|
|
|
|
void ff_hscale_16_to_15_lsx(SwsContext *c, int16_t *_dst, int dstW,
|
|
const uint8_t *_src, const int16_t *filter,
|
|
const int32_t *filterPos, int filterSize)
|
|
{
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->srcFormat);
|
|
int sh = desc->comp[0].depth - 1;
|
|
|
|
if (sh < 15) {
|
|
sh = isAnyRGB(c->srcFormat) || c->srcFormat==AV_PIX_FMT_PAL8 ? 13 :
|
|
(desc->comp[0].depth - 1);
|
|
} else if (desc->flags && AV_PIX_FMT_FLAG_FLOAT) {
|
|
sh = 15;
|
|
}
|
|
ff_hscale_16_to_15_sub_lsx(c, _dst, dstW, _src, filter, filterPos, filterSize, sh);
|
|
}
|
|
|
|
void ff_hscale_16_to_19_lsx(SwsContext *c, int16_t *_dst, int dstW,
|
|
const uint8_t *_src, const int16_t *filter,
|
|
const int32_t *filterPos, int filterSize)
|
|
{
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->srcFormat);
|
|
int bits = desc->comp[0].depth - 1;
|
|
int sh = bits - 4;
|
|
|
|
if ((isAnyRGB(c->srcFormat) || c->srcFormat==AV_PIX_FMT_PAL8) && desc->comp[0].depth<16) {
|
|
|
|
sh = 9;
|
|
} else if (desc->flags & AV_PIX_FMT_FLAG_FLOAT) { /* float input are process like uint 16bpc */
|
|
sh = 16 - 1 - 4;
|
|
}
|
|
ff_hscale_16_to_19_sub_lsx(c, _dst, dstW, _src, filter, filterPos, filterSize, sh);
|
|
}
|