include/SDL_types.h
author Sam Lantinga <slouken@libsdl.org>
Fri, 20 Aug 2004 22:32:05 +0000
changeset 932 66761191fc11
parent 912 bc0b95b02235
child 1190 173c063d4f55
permissions -rw-r--r--
Use the canonical glext.h on MacOS X as well (#define NO_SDL_GLEXT if you don't want this)
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2004 Sam Lantinga
     4 
     5     This library is free software; you can redistribute it and/or
     6     modify it under the terms of the GNU Library General Public
     7     License as published by the Free Software Foundation; either
     8     version 2 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     Library General Public License for more details.
    14 
    15     You should have received a copy of the GNU Library General Public
    16     License along with this library; if not, write to the Free
    17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    18 
    19     Sam Lantinga
    20     slouken@libsdl.org
    21 */
    22 
    23 #ifdef SAVE_RCSID
    24 static char rcsid =
    25  "@(#) $Id$";
    26 #endif
    27 
    28 /* General data types used by the SDL library */
    29 
    30 #ifndef _SDL_types_h
    31 #define _SDL_types_h
    32 
    33 /* The number of elements in a table */
    34 #define SDL_TABLESIZE(table)	(sizeof(table)/sizeof(table[0]))
    35 
    36 /* Basic data types */
    37 typedef enum {
    38 	SDL_FALSE = 0,
    39 	SDL_TRUE  = 1
    40 } SDL_bool;
    41 
    42 #ifdef H_MMBASIC /* mmbasic.h (Tru64 MME) */
    43 /* Some of the basic types are already defined in mmbasic.h */
    44 typedef signed char	Sint8;
    45 typedef signed short	Sint16;
    46 typedef signed int	Sint32;
    47 #else
    48 typedef unsigned char	Uint8;
    49 typedef signed char	Sint8;
    50 typedef unsigned short	Uint16;
    51 typedef signed short	Sint16;
    52 typedef unsigned int	Uint32;
    53 typedef signed int	Sint32;
    54 #endif
    55 
    56 /* Figure out how to support 64-bit datatypes */
    57 #if !defined(__STRICT_ANSI__)
    58 #ifdef __osf__ /* Tru64 */
    59 #define SDL_HAS_64BIT_TYPE	long
    60 #elif defined(__GNUC__) || defined(__MWERKS__) || defined(__SUNPRO_C) || defined(__DECC)
    61 #define SDL_HAS_64BIT_TYPE	long long
    62 #elif defined(_MSC_VER) /* VC++ */
    63 #define SDL_HAS_64BIT_TYPE	__int64
    64 #endif
    65 #endif /* !__STRICT_ANSI__ */
    66 
    67 /* The 64-bit type isn't available on EPOC/Symbian OS */
    68 #ifdef __SYMBIAN32__
    69 #undef SDL_HAS_64BIT_TYPE
    70 #endif
    71 
    72 /* The 64-bit datatype isn't supported on all platforms */
    73 #ifdef SDL_HAS_64BIT_TYPE
    74 #ifndef H_MMBASIC
    75 typedef unsigned SDL_HAS_64BIT_TYPE Uint64;
    76 #endif
    77 typedef SDL_HAS_64BIT_TYPE Sint64;
    78 #else
    79 /* This is really just a hack to prevent the compiler from complaining */
    80 typedef struct {
    81 	Uint32 hi;
    82 	Uint32 lo;
    83 } Uint64, Sint64;
    84 #endif
    85 
    86 /* Make sure the types really have the right sizes */
    87 #define SDL_COMPILE_TIME_ASSERT(name, x)               \
    88        typedef int SDL_dummy_ ## name[(x) * 2 - 1]
    89 
    90 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
    91 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
    92 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
    93 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
    94 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
    95 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
    96 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
    97 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
    98 
    99 /* Check to make sure enums are the size of ints, for structure packing.
   100    For both Watcom C/C++ and Borland C/C++ the compiler option that makes
   101    enums having the size of an int must be enabled.
   102    This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
   103 */
   104 /* Enable enums always int in CodeWarrior (for MPW use "-enum int") */
   105 #ifdef __MWERKS__
   106 #pragma enumsalwaysint on
   107 #endif
   108 
   109 typedef enum {
   110 	DUMMY_ENUM_VALUE
   111 } SDL_DUMMY_ENUM;
   112 
   113 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
   114 
   115 #undef SDL_COMPILE_TIME_ASSERT
   116 
   117 /* General keyboard/mouse state definitions */
   118 enum { SDL_PRESSED = 0x01, SDL_RELEASED = 0x00 };
   119 
   120 #endif