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  1. /*
  2.  * This file is part of FFmpeg.
  3.  *
  4.  * FFmpeg is free software; you can redistribute it and/or
  5.  * modify it under the terms of the GNU Lesser General Public
  6.  * License as published by the Free Software Foundation; either
  7.  * version 2.1 of the License, or (at your option) any later version.
  8.  *
  9.  * FFmpeg is distributed in the hope that it will be useful,
  10.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12.  * Lesser General Public License for more details.
  13.  *
  14.  * You should have received a copy of the GNU Lesser General Public
  15.  * License along with FFmpeg; if not, write to the Free Software
  16.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17.  */
  18.  
  19. /**
  20.  * @file
  21.  * byte swapping routines
  22.  */
  23.  
  24. #ifndef AVUTIL_SH4_BSWAP_H
  25. #define AVUTIL_SH4_BSWAP_H
  26.  
  27. #include <stdint.h>
  28. #include "config.h"
  29. #include "libavutil/attributes.h"
  30.  
  31. #define av_bswap16 av_bswap16
  32. static av_always_inline av_const uint16_t av_bswap16(uint16_t x)
  33. {
  34.     __asm__("swap.b %0,%0" : "+r"(x));
  35.     return x;
  36. }
  37.  
  38. #define av_bswap32 av_bswap32
  39. static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
  40. {
  41.     __asm__("swap.b %0,%0\n"
  42.             "swap.w %0,%0\n"
  43.             "swap.b %0,%0\n"
  44.             : "+r"(x));
  45.     return x;
  46. }
  47.  
  48. #endif /* AVUTIL_SH4_BSWAP_H */
  49.