include/SDL_byteorder.h
changeset 0 74212992fb08
child 1 cf2af46e9e2a
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/include/SDL_byteorder.h	Thu Apr 26 16:45:43 2001 +0000
     1.3 @@ -0,0 +1,51 @@
     1.4 +/*
     1.5 +    SDL - Simple DirectMedia Layer
     1.6 +    Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
     1.7 +
     1.8 +    This library is free software; you can redistribute it and/or
     1.9 +    modify it under the terms of the GNU Library General Public
    1.10 +    License as published by the Free Software Foundation; either
    1.11 +    version 2 of the License, or (at your option) any later version.
    1.12 +
    1.13 +    This library is distributed in the hope that it will be useful,
    1.14 +    but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.15 +    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    1.16 +    Library General Public License for more details.
    1.17 +
    1.18 +    You should have received a copy of the GNU Library General Public
    1.19 +    License along with this library; if not, write to the Free
    1.20 +    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    1.21 +
    1.22 +    Sam Lantinga
    1.23 +    slouken@devolution.com
    1.24 +*/
    1.25 +
    1.26 +#ifdef SAVE_RCSID
    1.27 +static char rcsid =
    1.28 + "@(#) $Id$";
    1.29 +#endif
    1.30 +
    1.31 +/* Macros for determining the byte-order of this platform */
    1.32 +
    1.33 +#ifndef _SDL_byteorder_h
    1.34 +#define _SDL_byteorder_h
    1.35 +
    1.36 +/* The two types of endianness */
    1.37 +#define SDL_LIL_ENDIAN	1234
    1.38 +#define SDL_BIG_ENDIAN	4321
    1.39 +
    1.40 +/* Pardon the mess, I'm trying to determine the endianness of this host.
    1.41 +   I'm doing it by preprocessor defines rather than some sort of configure
    1.42 +   script so that application code can use this too.  The "right" way would
    1.43 +   be to dynamically generate this file on install, but that's a lot of work.
    1.44 + */
    1.45 +#if  defined(__i386__) || defined(WIN32) || \
    1.46 +    (defined(__alpha__) || defined(__alpha)) || \
    1.47 +     defined(__arm__) || \
    1.48 +    (defined(__mips__) && defined(__MIPSEL__))
    1.49 +#define SDL_BYTEORDER	SDL_LIL_ENDIAN
    1.50 +#else
    1.51 +#define SDL_BYTEORDER	SDL_BIG_ENDIAN
    1.52 +#endif
    1.53 +
    1.54 +#endif /* _SDL_byteorder_h */