diff options
Diffstat (limited to 'libmpdvdkit2/bswap.h')
| -rw-r--r-- | libmpdvdkit2/bswap.h | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/libmpdvdkit2/bswap.h b/libmpdvdkit2/bswap.h deleted file mode 100644 index f121b06104..0000000000 --- a/libmpdvdkit2/bswap.h +++ /dev/null @@ -1,144 +0,0 @@ -#ifndef BSWAP_H_INCLUDED -#define BSWAP_H_INCLUDED - -/* - * Copyright (C) 2000, 2001 Billy Biggs <vektor@dumbterm.net>, - * Håkan Hjort <d95hjort@dtek.chalmers.se> - * - * Modified for use with MPlayer, changes contained in libdvdread_changes.diff. - * detailed changelog at http://svn.mplayerhq.hu/mplayer/trunk/ - * $Id$ - * - * 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 - */ - -#if defined(WORDS_BIGENDIAN) -/* All bigendian systems are fine, just ignore the swaps. */ -#define B2N_16(x) (void)(x) -#define B2N_32(x) (void)(x) -#define B2N_64(x) (void)(x) - -#else - -/* For __FreeBSD_version */ -#if defined(HAVE_SYS_PARAM_H) -#include <sys/param.h> -#endif - -#if defined(__linux__) -#include <byteswap.h> -#define B2N_16(x) x = bswap_16(x) -#define B2N_32(x) x = bswap_32(x) -#define B2N_64(x) x = bswap_64(x) - -#elif defined(__NetBSD__) -#include <sys/endian.h> -#define B2N_16(x) BE16TOH(x) -#define B2N_32(x) BE32TOH(x) -#define B2N_64(x) BE64TOH(x) - -#elif defined(__OpenBSD__) -#include <sys/endian.h> -#define B2N_16(x) x = swap16(x) -#define B2N_32(x) x = swap32(x) -#define B2N_64(x) x = swap64(x) - -#elif defined(__FreeBSD__) && __FreeBSD_version >= 470000 -#include <sys/endian.h> -#define B2N_16(x) x = be16toh(x) -#define B2N_32(x) x = be32toh(x) -#define B2N_64(x) x = be64toh(x) - -#elif defined(__DragonFly__) -#include <sys/endian.h> -#define B2N_16(x) x = be16toh(x) -#define B2N_32(x) x = be32toh(x) -#define B2N_64(x) x = be64toh(x) - -#elif defined(ARCH_X86) -inline static unsigned short bswap_16(unsigned short x) -{ - __asm("xchgb %b0,%h0" : - "=q" (x) : - "0" (x)); - return x; -} -#define B2N_16(x) x = bswap_16(x) - -inline static unsigned int bswap_32(unsigned int x) -{ - __asm( -#if __CPU__ > 386 - "bswap %0": - "=r" (x) : -#else - "xchgb %b0,%h0\n" - " rorl $16,%0\n" - " xchgb %b0,%h0": - "=q" (x) : -#endif - "0" (x)); - return x; -} -#define B2N_32(x) x = bswap_32(x) - -inline static unsigned long long int bswap_64(unsigned long long int x) -{ - register union { __extension__ uint64_t __ll; - uint32_t __l[2]; } __x; - asm("xchgl %0,%1": - "=r"(__x.__l[0]),"=r"(__x.__l[1]): - "0"(bswap_32((unsigned long)x)),"1"(bswap_32((unsigned long)(x>>32)))); - return __x.__ll; -} -#define B2N_64(x) x = bswap_64(x) - -/* This is a slow but portable implementation, it has multiple evaluation - * problems so beware. - * Old FreeBSD's and Solaris don't have <byteswap.h> or any other such - * functionality! - */ - -#elif defined(__FreeBSD__) || defined(__sun) || defined(__bsdi__) || defined(__CYGWIN__) -#define B2N_16(x) \ - x = ((((x) & 0xff00) >> 8) | \ - (((x) & 0x00ff) << 8)) -#define B2N_32(x) \ - x = ((((x) & 0xff000000) >> 24) | \ - (((x) & 0x00ff0000) >> 8) | \ - (((x) & 0x0000ff00) << 8) | \ - (((x) & 0x000000ff) << 24)) -#define B2N_64(x) \ - x = ((((x) & 0xff00000000000000) >> 56) | \ - (((x) & 0x00ff000000000000) >> 40) | \ - (((x) & 0x0000ff0000000000) >> 24) | \ - (((x) & 0x000000ff00000000) >> 8) | \ - (((x) & 0x00000000ff000000) << 8) | \ - (((x) & 0x0000000000ff0000) << 24) | \ - (((x) & 0x000000000000ff00) << 40) | \ - (((x) & 0x00000000000000ff) << 56)) - -#else - -/* If there isn't a header provided with your system with this functionality - * add the relevant || define( ) to the portable implementation above. - */ -#error "You need to add endian swap macros for you're system" - -#endif - -#endif /* WORDS_BIGENDIAN */ - -#endif /* BSWAP_H_INCLUDED */ |