SDL_types.h
1
2
/*
SDL - Simple DirectMedia Layer
3
Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
20
slouken@libsdl.org
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
*/
#ifdef SAVE_RCSID
static char rcsid =
"@(#) $Id$";
#endif
/* General data types used by the SDL library */
#ifndef _SDL_types_h
#define _SDL_types_h
/* The number of elements in a table */
#define SDL_TABLESIZE(table) (sizeof(table)/sizeof(table[0]))
/* Basic data types */
typedef enum {
SDL_FALSE = 0,
SDL_TRUE = 1
} SDL_bool;
typedef unsigned char Uint8;
typedef signed char Sint8;
typedef unsigned short Uint16;
typedef signed short Sint16;
typedef unsigned int Uint32;
typedef signed int Sint32;
/* Figure out how to support 64-bit datatypes */
#if !defined(__STRICT_ANSI__)
50
#if defined(__GNUC__) || defined(__MWERKS__) || defined(__SUNPRO_C)
51
52
53
54
55
56
#define SDL_HAS_64BIT_TYPE long long
#elif defined(_MSC_VER) /* VC++ */
#define SDL_HAS_64BIT_TYPE __int64
#endif
#endif /* !__STRICT_ANSI__ */
57
58
59
60
61
/* The 64-bit type isn't available on EPOC/Symbian OS */
#ifdef __SYMBIAN32__
#undef SDL_HAS_64BIT_TYPE
#endif
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
/* The 64-bit datatype isn't supported on all platforms */
#ifdef SDL_HAS_64BIT_TYPE
typedef unsigned SDL_HAS_64BIT_TYPE Uint64;
typedef SDL_HAS_64BIT_TYPE Sint64;
#else
/* This is really just a hack to prevent the compiler from complaining */
typedef struct {
Uint32 hi;
Uint32 lo;
} Uint64, Sint64;
#endif
/* Make sure the types really have the right sizes */
#define SDL_COMPILE_TIME_ASSERT(name, x) \
typedef int SDL_dummy_ ## name[(x) * 2 - 1]
SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
87
88
89
90
91
/* Check to make sure enums are the size of ints, for structure packing.
For both Watcom C/C++ and Borland C/C++ the compiler option that makes
enums having the size of an int must be enabled.
This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
*/
92
93
94
95
96
/* Enable enums always int in CodeWarrior (for MPW use "-enum int") */
#ifdef __MWERKS__
#pragma enumsalwaysint on
#endif
97
98
99
100
101
102
typedef enum {
DUMMY_ENUM_VALUE
} SDL_DUMMY_ENUM;
SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
103
104
105
106
107
108
#undef SDL_COMPILE_TIME_ASSERT
/* General keyboard/mouse state definitions */
enum { SDL_PRESSED = 0x01, SDL_RELEASED = 0x00 };
#endif