mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-22 15:23:11 +00:00
bad5537e2c
Otherwise doxygen complains about ambiguous filenames when files exist under the same name in different subdirectories. Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk
62 lines
1.6 KiB
C
62 lines
1.6 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
|
|
*/
|
|
|
|
/**
|
|
* @file libavutil/x86/bswap.h
|
|
* byte swapping routines
|
|
*/
|
|
|
|
#ifndef AVUTIL_X86_BSWAP_H
|
|
#define AVUTIL_X86_BSWAP_H
|
|
|
|
#include <stdint.h>
|
|
#include "config.h"
|
|
#include "libavutil/common.h"
|
|
|
|
#define bswap_16 bswap_16
|
|
static av_always_inline av_const uint16_t bswap_16(uint16_t x)
|
|
{
|
|
__asm__("rorw $8, %0" : "+r"(x));
|
|
return x;
|
|
}
|
|
|
|
#define bswap_32 bswap_32
|
|
static av_always_inline av_const uint32_t bswap_32(uint32_t x)
|
|
{
|
|
#if HAVE_BSWAP
|
|
__asm__("bswap %0" : "+r" (x));
|
|
#else
|
|
__asm__("rorw $8, %w0 \n\t"
|
|
"rorl $16, %0 \n\t"
|
|
"rorw $8, %w0"
|
|
: "+r"(x));
|
|
#endif
|
|
return x;
|
|
}
|
|
|
|
#if ARCH_X86_64
|
|
#define bswap_64 bswap_64
|
|
static inline uint64_t av_const bswap_64(uint64_t x)
|
|
{
|
|
__asm__("bswap %0": "=r" (x) : "0" (x));
|
|
return x;
|
|
}
|
|
#endif
|
|
|
|
#endif /* AVUTIL_X86_BSWAP_H */
|