include/SDL_byteorder.h
author Sam Lantinga <slouken@libsdl.org>
Thu, 09 Feb 2006 09:07:13 +0000
changeset 1353 7ba544e2888d
parent 1312 c9b51268668f
child 1354 22f39393668a
permissions -rw-r--r--
Started the process of improving configure support, and merging C types
and library support into a single header.
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2006 Sam Lantinga
     4 
     5     This library is free software; you can redistribute it and/or
     6     modify it under the terms of the GNU Lesser General Public
     7     License as published by the Free Software Foundation; either
     8     version 2.1 of the License, or (at your option) any later version.
     9 
    10     This library is distributed in the hope that it will be useful,
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13     Lesser General Public License for more details.
    14 
    15     You should have received a copy of the GNU Lesser General Public
    16     License along with this library; if not, write to the Free Software
    17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
    18 
    19     Sam Lantinga
    20     slouken@libsdl.org
    21 */
    22 
    23 /* Macros for determining the byte-order of this platform */
    24 
    25 #ifndef _SDL_byteorder_h
    26 #define _SDL_byteorder_h
    27 
    28 #include "SDL_config.h"
    29 
    30 /* The two types of endianness */
    31 #define SDL_LIL_ENDIAN	1234
    32 #define SDL_BIG_ENDIAN	4321
    33 
    34 #ifndef SDL_BYTEORDER	/* Not defined in SDL_config.h? */
    35 #if (defined(__i386__) || defined(__i386)) || \
    36      defined(__ia64__) || defined(__x86_64__) || \
    37     (defined(__alpha__) || defined(__alpha)) || \
    38     (defined(__arm__) || defined(__thumb__)) || \
    39     (defined(__sh__) || defined(__sh64__)) || \
    40     (defined(__mips__) && defined(__MIPSEL__)) || \
    41      defined(__SYMBIAN32__) || defined(__OS2__)
    42 #define SDL_BYTEORDER	SDL_LIL_ENDIAN
    43 #else
    44 #define SDL_BYTEORDER	SDL_BIG_ENDIAN
    45 #endif
    46 #endif /* !SDL_BYTEORDER */
    47 
    48 #endif /* _SDL_byteorder_h */