include/SDL_types.h
author Sam Lantinga <slouken@libsdl.org>
Wed, 01 Feb 2006 06:32:25 +0000
changeset 1312 c9b51268668f
parent 1190 173c063d4f55
child 1330 450721ad5436
permissions -rw-r--r--
Updated copyright information and removed rcs id lines (problematic in branch merges)
I batch edited these files, so please let me know if I've accidentally removed anybody's
credit here.
     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 /* General data types used by the SDL library */
    24 
    25 #ifndef _SDL_types_h
    26 #define _SDL_types_h
    27 
    28 /* The number of elements in a table */
    29 #define SDL_TABLESIZE(table)	(sizeof(table)/sizeof(table[0]))
    30 
    31 /* Basic data types */
    32 typedef enum {
    33 	SDL_FALSE = 0,
    34 	SDL_TRUE  = 1
    35 } SDL_bool;
    36 
    37 #ifdef H_MMBASIC /* mmbasic.h (Tru64 MME) */
    38 /* Some of the basic types are already defined in mmbasic.h */
    39 typedef signed char	Sint8;
    40 typedef signed short	Sint16;
    41 typedef signed int	Sint32;
    42 #else
    43 typedef unsigned char	Uint8;
    44 typedef signed char	Sint8;
    45 typedef unsigned short	Uint16;
    46 typedef signed short	Sint16;
    47 typedef unsigned int	Uint32;
    48 typedef signed int	Sint32;
    49 #endif
    50 
    51 /* Figure out how to support 64-bit datatypes */
    52 #if !defined(__STRICT_ANSI__)
    53 #ifdef __osf__ /* Tru64 */
    54 #define SDL_HAS_64BIT_TYPE	long
    55 #elif defined(__GNUC__) || defined(__MWERKS__) || defined(__SUNPRO_C) || defined(__DECC) || defined(__WATCOMC__)
    56 #define SDL_HAS_64BIT_TYPE	long long
    57 #elif defined(_MSC_VER) /* VC++ */
    58 #define SDL_HAS_64BIT_TYPE	__int64
    59 #endif
    60 #endif /* !__STRICT_ANSI__ */
    61 
    62 /* The 64-bit type isn't available on EPOC/Symbian OS */
    63 #ifdef __SYMBIAN32__
    64 #undef SDL_HAS_64BIT_TYPE
    65 #endif
    66 
    67 /* The 64-bit datatype isn't supported on all platforms */
    68 #ifdef SDL_HAS_64BIT_TYPE
    69 #ifndef H_MMBASIC
    70 typedef unsigned SDL_HAS_64BIT_TYPE Uint64;
    71 #endif
    72 typedef SDL_HAS_64BIT_TYPE Sint64;
    73 #else
    74 /* This is really just a hack to prevent the compiler from complaining */
    75 typedef struct {
    76 	Uint32 hi;
    77 	Uint32 lo;
    78 } Uint64, Sint64;
    79 #endif
    80 
    81 /* Make sure the types really have the right sizes */
    82 #define SDL_COMPILE_TIME_ASSERT(name, x)               \
    83        typedef int SDL_dummy_ ## name[(x) * 2 - 1]
    84 
    85 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
    86 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
    87 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
    88 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
    89 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
    90 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
    91 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
    92 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
    93 
    94 /* Check to make sure enums are the size of ints, for structure packing.
    95    For both Watcom C/C++ and Borland C/C++ the compiler option that makes
    96    enums having the size of an int must be enabled.
    97    This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
    98 */
    99 /* Enable enums always int in CodeWarrior (for MPW use "-enum int") */
   100 #ifdef __MWERKS__
   101 #pragma enumsalwaysint on
   102 #endif
   103 
   104 typedef enum {
   105 	DUMMY_ENUM_VALUE
   106 } SDL_DUMMY_ENUM;
   107 
   108 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
   109 
   110 #undef SDL_COMPILE_TIME_ASSERT
   111 
   112 /* General keyboard/mouse state definitions */
   113 enum { SDL_PRESSED = 0x01, SDL_RELEASED = 0x00 };
   114 
   115 #endif