src/image/sublib/SDL_types.h

   1 /*
   2     SDL - Simple DirectMedia Layer
   3     Copyright (C) 1997, 1998, 1999, 2000, 2001  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@devolution.com
  21 */
  22
  23 #ifdef SAVE_RCSID
  24 static char rcsid =
  25  "@(#) $Id: SDL_types.h,v 1.1.1.1 2003/01/04 11:37:22 leo Exp $";
  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)
  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 typedef unsigned SDL_HAS_64BIT_TYPE Uint64;
  65 typedef SDL_HAS_64BIT_TYPE Sint64;
  66 #else
  67 /* This is really just a hack to prevent the compiler from complaining */
  68 typedef struct {
  69         Uint32 hi;
  70         Uint32 lo;
  71 } Uint64, Sint64;
  72 #endif
  73
  74 /* Make sure the types really have the right sizes */
  75 #define SDL_COMPILE_TIME_ASSERT(name, x)               \
  76        typedef int SDL_dummy_ ## name[(x) * 2 - 1]
  77
  78 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
  79 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
  80 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
  81 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
  82 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
  83 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
  84 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
  85 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
  86
  87 #undef SDL_COMPILE_TIME_ASSERT
  88
  89 /* General keyboard/mouse state definitions */
  90 enum { SDL_PRESSED = 0x01, SDL_RELEASED = 0x00 };
  91
  92 #endif