mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
7dcb5e1ab0
av_bswapXX() are used in context that expect exact size types, notably variable arguments to av_log(). On Linux RV64, uint_fast32_t is an unsigned long, so the current inline assembler does not work properly. Since GCC and Clang gained their byte-swap built-ins before they supported RISC-V, we can simply defer to them. As an added bonus, the compiler can do instruction scheduling, which it couldn't with the Zbb inline assembler.
33 lines
1.1 KiB
C
33 lines
1.1 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
|
|
*/
|
|
|
|
#ifndef AVUTIL_RISCV_BSWAP_H
|
|
#define AVUTIL_RISCV_BSWAP_H
|
|
|
|
#include <stdint.h>
|
|
#include "config.h"
|
|
#include "libavutil/attributes.h"
|
|
|
|
#if defined (__GNUC__) || defined (__clang__)
|
|
#define av_bswap16 __builtin_bswap16
|
|
#define av_bswap32 __builtin_bswap32
|
|
#define av_bswap64 __builtin_bswap64
|
|
#endif
|
|
|
|
#endif /* AVUTIL_RISCV_BSWAP_H */
|