mirror of https://git.ffmpeg.org/ffmpeg.git
37 lines
1.3 KiB
C
37 lines
1.3 KiB
C
|
/*
|
||
|
|
* 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 "config.h"
|
||
|
|
#include "libavutil/attributes.h"
|
||
|
|
#include "libavutil/cpu.h"
|
||
|
|
#include "libavcodec/videodsp.h"
|
||
|
|
|
||
|
|
void ff_prefetch_rv_zicbop(const uint8_t *mem, ptrdiff_t stride, int h);
|
||
|
|
|
||
|
|
av_cold void ff_videodsp_init_riscv(VideoDSPContext *ctx, int bpc)
|
||
|
|
{
|
||
|
|
#if HAVE_RV_ZICBOP
|
||
|
|
/* TODO: Since we pay for the indirect function call anyway, we should
|
||
|
|
* only set this if Cache-Block Operation Prefetch (Zicbop) is actually
|
||
|
|
* supported and otherwise save a few cycles of NOPs.
|
||
|
|
* But so far there are no means to detect Zicbop (in user mode).
|
||
|
|
*/
|
||
|
|
ctx->prefetch = ff_prefetch_rv_zicbop;
|
||
|
|
#endif
|
||
|
|
}
|