include/SDL_types.h
author Sam Lantinga <slouken@libsdl.org>
Sun, 04 Jan 2004 16:49:27 +0000
changeset 769 b8d311d90021
parent 661 04028d47b1ea
child 908 6104bfff77ba
permissions -rw-r--r--
Updated copyright information for 2004 (Happy New Year!)
     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 typedef unsigned char	Uint8;
    42 typedef signed char	Sint8;
    43 typedef unsigned short	Uint16;
    44 typedef signed short	Sint16;
    45 typedef unsigned int	Uint32;
    46 typedef signed int	Sint32;
    47 
    48 /* Figure out how to support 64-bit datatypes */
    49 #if !defined(__STRICT_ANSI__)
    50 #if defined(__GNUC__) || defined(__MWERKS__) || defined(__SUNPRO_C) || defined(__DECC)
    51 #define SDL_HAS_64BIT_TYPE	long long
    52 #elif defined(_MSC_VER) /* VC++ */
    53 #define SDL_HAS_64BIT_TYPE	__int64
    54 #endif
    55 #endif /* !__STRICT_ANSI__ */
    56 
    57 /* The 64-bit type isn't available on EPOC/Symbian OS */
    58 #ifdef __SYMBIAN32__
    59 #undef SDL_HAS_64BIT_TYPE
    60 #endif
    61 
    62 /* The 64-bit datatype isn't supported on all platforms */
    63 #ifdef SDL_HAS_64BIT_TYPE
    64 #ifndef H_MMBASIC
    65 typedef unsigned SDL_HAS_64BIT_TYPE Uint64;
    66 #endif
    67 typedef SDL_HAS_64BIT_TYPE Sint64;
    68 #else
    69 /* This is really just a hack to prevent the compiler from complaining */
    70 typedef struct {
    71 	Uint32 hi;
    72 	Uint32 lo;
    73 } Uint64, Sint64;
    74 #endif
    75 
    76 /* Make sure the types really have the right sizes */
    77 #define SDL_COMPILE_TIME_ASSERT(name, x)               \
    78        typedef int SDL_dummy_ ## name[(x) * 2 - 1]
    79 
    80 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
    81 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
    82 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
    83 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
    84 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
    85 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
    86 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
    87 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
    88 
    89 /* Check to make sure enums are the size of ints, for structure packing.
    90    For both Watcom C/C++ and Borland C/C++ the compiler option that makes
    91    enums having the size of an int must be enabled.
    92    This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
    93 */
    94 /* Enable enums always int in CodeWarrior (for MPW use "-enum int") */
    95 #ifdef __MWERKS__
    96 #pragma enumsalwaysint on
    97 #endif
    98 
    99 typedef enum {
   100 	DUMMY_ENUM_VALUE
   101 } SDL_DUMMY_ENUM;
   102 
   103 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
   104 
   105 #undef SDL_COMPILE_TIME_ASSERT
   106 
   107 /* General keyboard/mouse state definitions */
   108 enum { SDL_PRESSED = 0x01, SDL_RELEASED = 0x00 };
   109 
   110 #endif