/* * Copyright (C) 2007 Marc Hoffman * * 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/bfin/bswap.h * byte swapping routines */ #ifndef MP_AVUTIL_BFIN_BSWAP_H #define MP_AVUTIL_BFIN_BSWAP_H #include #include "config.h" #include "libavutil/common.h" #define bswap_32 bswap_32 static av_always_inline av_const uint32_t bswap_32(uint32_t x) { unsigned tmp; __asm__("%1 = %0 >> 8 (V); \n\t" "%0 = %0 << 8 (V); \n\t" "%0 = %0 | %1; \n\t" "%0 = PACK(%0.L, %0.H); \n\t" : "+d"(x), "=&d"(tmp)); return x; } #endif /* AVUTIL_BFIN_BSWAP_H */