diff options
Diffstat (limited to 'ffmpeg/libavutil/x86/bswap.h')
| -rw-r--r-- | ffmpeg/libavutil/x86/bswap.h | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/ffmpeg/libavutil/x86/bswap.h b/ffmpeg/libavutil/x86/bswap.h deleted file mode 100644 index 08e2a62..0000000 --- a/ffmpeg/libavutil/x86/bswap.h +++ /dev/null @@ -1,61 +0,0 @@ -/* - * 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 - * byte swapping routines - */ - -#ifndef AVUTIL_X86_BSWAP_H -#define AVUTIL_X86_BSWAP_H - -#include <stdint.h> -#include "config.h" -#include "libavutil/attributes.h" - -#if HAVE_INLINE_ASM - -#if !AV_GCC_VERSION_AT_LEAST(4,1) -#define av_bswap16 av_bswap16 -static av_always_inline av_const unsigned av_bswap16(unsigned x) -{ - __asm__("rorw $8, %w0" : "+r"(x)); - return x; -} -#endif /* !AV_GCC_VERSION_AT_LEAST(4,1) */ - -#if !AV_GCC_VERSION_AT_LEAST(4,5) -#define av_bswap32 av_bswap32 -static av_always_inline av_const uint32_t av_bswap32(uint32_t x) -{ - __asm__("bswap %0" : "+r" (x)); - return x; -} - -#if ARCH_X86_64 -#define av_bswap64 av_bswap64 -static inline uint64_t av_const av_bswap64(uint64_t x) -{ - __asm__("bswap %0": "=r" (x) : "0" (x)); - return x; -} -#endif -#endif /* !AV_GCC_VERSION_AT_LEAST(4,5) */ - -#endif /* HAVE_INLINE_ASM */ -#endif /* AVUTIL_X86_BSWAP_H */ |
