#ifndef ENDIAN_H_INCLUDED #define ENDIAN_H_INCLUDED /* Ogle - A video player * Copyright (C) 2001 Martin Norbäck * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* For now, just 16,32 bit byteswap */ #ifdef HAVE_CONFIG_H # include #endif #ifdef WORDS_BIGENDIAN # define FROM_BE_16(x) (x) # define FROM_BE_32(x) (x) #else #if defined(HAVE_SYS_PARAM_H) #include #endif #if defined(HAVE_BYTESWAP_H) # include # define FROM_BE_16(x) (bswap_16(x)) # define FROM_BE_32(x) (bswap_32(x)) #elif defined(HAVE_SYS_BSWAP_H) # include # define FROM_BE_16(x) (bswap16(x)) # define FROM_BE_32(x) (bswap32(x)) #elif defined(HAVE_SYS_ENDIAN_H) && !defined(__FreeBSD__) # include # define FROM_BE_16(x) (swap16(x)) # define FROM_BE_32(x) (swap32(x)) #elif defined(HAVE_SYS_ENDIAN_H) && defined(__FreeBSD__) && __FreeBSD_version >= 470000 # include # define FROM_BE_16(x) (be16toh(x)) # define FROM_BE_32(x) (be32toh(x)) #else # warning "No accelerated byte swap found. Using slow c version." # include static inline uint32_t FROM_BE_32(uint32_t x) { return (((x & 0xff000000) >> 24) | ((x & 0x00ff0000) >> 8) | ((x & 0x0000ff00) << 8) | ((x & 0x000000ff) << 24)); } static inline uint16_t FROM_BE_16(uint16_t x) { return (((x & 0xff00) >> 8) | ((x & 0x00ff) << 8)); } #endif /* INCLUDE TESTS */ #endif /* WORDS_BIGENDIAN */ #endif /* ENDIAN_H_INCLUDED */