view include/SDL_byteorder.h @ 1143:71a2648acc75

Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam requested this effort on the mailing list, apparently because of binary compatibility issues between 10.4 and earlier systems (or gcc4 and earlier compilers?). Works fine with SDL12/test/testcdrom.c, with this command line: ./testcdrom -status -list -play -sleep 5000 -pause -sleep 3000 -resume \ -sleep 5000 -stop -sleep 3000 -play -sleep 3000 -stop \ -sleep 3000 -eject Unix Makefiles work, XCode project still need updating for new filenames.
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 22 Sep 2005 08:48:16 +0000
parents 0f9d463bf09c
children 173c063d4f55
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2004 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library 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
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    Sam Lantinga
    slouken@libsdl.org
*/

#ifdef SAVE_RCSID
static char rcsid =
 "@(#) $Id$";
#endif

/* Macros for determining the byte-order of this platform */

#ifndef _SDL_byteorder_h
#define _SDL_byteorder_h

/* The two types of endianness */
#define SDL_LIL_ENDIAN	1234
#define SDL_BIG_ENDIAN	4321

#ifdef __linux__
# include <endian.h>
# if BYTE_ORDER == LITTLE_ENDIAN
#  define SDL_BYTEORDER SDL_LIL_ENDIAN
# else
#  define SDL_BYTEORDER SDL_BIG_ENDIAN
# endif

#else

/* Pardon the mess, I'm trying to determine the endianness of this host.
   I'm doing it by preprocessor defines rather than some sort of configure
   script so that application code can use this too.  The "right" way would
   be to dynamically generate this file on install, but that's a lot of work.
 */
#if (defined(__i386__) || defined(__i386)) || \
     defined(__ia64__) || defined(WIN32) || \
    (defined(__alpha__) || defined(__alpha)) || \
    (defined(__arm__) || defined(__thumb__)) || \
    (defined(__sh__) || defined(__sh64__)) || \
    (defined(__mips__) && defined(__MIPSEL__)) || \
     defined(__SYMBIAN32__) || \
     defined(__x86_64__) || \
     defined(__LITTLE_ENDIAN__)
#define SDL_BYTEORDER	SDL_LIL_ENDIAN
#else
#define SDL_BYTEORDER	SDL_BIG_ENDIAN
#endif

#endif /* __linux__ */

#endif /* _SDL_byteorder_h */