55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
/*
|
|
* Copyright © 2022 Rémi Denis-Courmont.
|
|
*
|
|
* 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 <stdint.h>
|
|
|
|
#include "config.h"
|
|
#include "libavutil/attributes.h"
|
|
#include "libavutil/cpu.h"
|
|
#include "libavcodec/bswapdsp.h"
|
|
|
|
void ff_bswap32_buf_rvb(uint32_t *dst, const uint32_t *src, int len);
|
|
void ff_bswap16_buf_rvv(uint16_t *dst, const uint16_t *src, int len);
|
|
void ff_bswap32_buf_rvvb(uint32_t *dst, const uint32_t *src, int len);
|
|
void ff_bswap16_buf_rvvb(uint16_t *dst, const uint16_t *src, int len);
|
|
|
|
av_cold void ff_bswapdsp_init_riscv(BswapDSPContext *c)
|
|
{
|
|
#if HAVE_RV
|
|
int flags = av_get_cpu_flags();
|
|
|
|
#if (__riscv_xlen >= 64)
|
|
if (flags & AV_CPU_FLAG_RVB_BASIC)
|
|
c->bswap_buf = ff_bswap32_buf_rvb;
|
|
#endif
|
|
#if HAVE_RVV
|
|
if ((flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB)) {
|
|
c->bswap16_buf = ff_bswap16_buf_rvv;
|
|
#if HAVE_RV_ZVBB
|
|
if (flags & AV_CPU_FLAG_RV_ZVBB) {
|
|
c->bswap_buf = ff_bswap32_buf_rvvb;
|
|
c->bswap16_buf = ff_bswap16_buf_rvvb;
|
|
}
|
|
#endif
|
|
}
|
|
#endif
|
|
#endif
|
|
}
|