repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * Copyright (C) 2007 Marc Hoffman | |
| 3 | * | |
| 4 | * This file is part of FFmpeg. | |
| 5 | * | |
| 6 | * FFmpeg is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU Lesser General Public | |
| 8 | * License as published by the Free Software Foundation; either | |
| 9 | * version 2.1 of the License, or (at your option) any later version. | |
| 10 | * | |
| 11 | * FFmpeg is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | * Lesser General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU Lesser General Public | |
| 17 | * License along with FFmpeg; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 19 | */ | |
| 20 | ||
| 21 | /** | |
| 22 | * @file | |
| 23 | * byte swapping routines | |
| 24 | */ | |
| 25 | ||
| 26 | #ifndef AVUTIL_BFIN_BSWAP_H | |
| 27 | #define AVUTIL_BFIN_BSWAP_H | |
| 28 | ||
| 29 | #include <stdint.h> | |
| 30 | #include "config.h" | |
| 31 | #include "libavutil/attributes.h" | |
| 32 | ||
| 33 | #define av_bswap32 av_bswap32 | |
| 34 | static av_always_inline av_const uint32_t av_bswap32(uint32_t x) | |
| 35 | { | |
| 36 | unsigned tmp; | |
| 37 | __asm__("%1 = %0 >> 8 (V); \n\t" | |
| 38 | "%0 = %0 << 8 (V); \n\t" | |
| 39 | "%0 = %0 | %1; \n\t" | |
| 40 | "%0 = PACK(%0.L, %0.H); \n\t" | |
| 41 | : "+d"(x), "=&d"(tmp)); | |
| 42 | return x; | |
| 43 | } | |
| 44 | ||
| 45 | #endif /* AVUTIL_BFIN_BSWAP_H */ |