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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 3 | pmbaty | 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
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| 3 | Copyright (C) 1997-2009 Sam Lantinga |
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| 4 | |||
| 5 | This library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Library General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2 of the License, or (at your option) any later version. |
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| 9 | |||
| 10 | This library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Library General Public License for more details. |
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| 14 | |||
| 15 | You should have received a copy of the GNU Library General Public |
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| 16 | License along with this library; if not, write to the Free |
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| 17 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 18 | |||
| 19 | Sam Lantinga |
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| 20 | slouken@libsdl.org |
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| 21 | */ |
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| 22 | |||
| 23 | /** |
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| 24 | * @file begin_code.h |
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| 25 | * This file sets things up for C dynamic library function definitions, |
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| 26 | * static inlined functions, and structures aligned at 4-byte alignment. |
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| 27 | * If you don't like ugly C preprocessor code, don't look at this file. :) |
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| 28 | */ |
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| 29 | |||
| 30 | /** |
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| 31 | * @file begin_code.h |
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| 32 | * This shouldn't be nested -- included it around code only. |
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| 33 | */ |
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| 34 | #ifdef _begin_code_h |
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| 35 | #error Nested inclusion of begin_code.h |
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| 36 | #endif |
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| 37 | #define _begin_code_h |
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| 38 | |||
| 39 | /** |
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| 40 | * @def DECLSPEC |
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| 41 | * Some compilers use a special export keyword |
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| 42 | */ |
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| 43 | #ifndef DECLSPEC |
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| 44 | # if defined(__BEOS__) || defined(__HAIKU__) |
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| 45 | # if defined(__GNUC__) |
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| 46 | # define DECLSPEC __declspec(dllexport) |
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| 47 | # else |
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| 48 | # define DECLSPEC __declspec(export) |
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| 49 | # endif |
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| 50 | # elif defined(__WIN32__) |
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| 51 | # ifdef __BORLANDC__ |
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| 52 | # ifdef BUILD_SDL |
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| 53 | # define DECLSPEC |
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| 54 | # else |
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| 55 | # define DECLSPEC __declspec(dllimport) |
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| 56 | # endif |
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| 57 | # else |
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| 58 | # define DECLSPEC __declspec(dllexport) |
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| 59 | # endif |
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| 60 | # elif defined(__OS2__) |
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| 61 | # ifdef __WATCOMC__ |
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| 62 | # ifdef BUILD_SDL |
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| 63 | # define DECLSPEC __declspec(dllexport) |
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| 64 | # else |
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| 65 | # define DECLSPEC |
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| 66 | # endif |
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| 67 | # elif defined (__GNUC__) && __GNUC__ < 4 |
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| 68 | # /* Added support for GCC-EMX <v4.x */ |
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| 69 | # /* this is needed for XFree86/OS2 developement */ |
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| 70 | # /* F. Ambacher(anakor@snafu.de) 05.2008 */ |
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| 71 | # ifdef BUILD_SDL |
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| 72 | # define DECLSPEC __declspec(dllexport) |
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| 73 | # else |
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| 74 | # define DECLSPEC |
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| 75 | # endif |
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| 76 | # else |
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| 77 | # define DECLSPEC |
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| 78 | # endif |
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| 79 | # else |
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| 80 | # if defined(__GNUC__) && __GNUC__ >= 4 |
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| 81 | # define DECLSPEC __attribute__ ((visibility("default"))) |
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| 82 | # else |
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| 83 | # define DECLSPEC |
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| 84 | # endif |
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| 85 | # endif |
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| 86 | #endif |
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| 87 | |||
| 88 | /** |
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| 89 | * @def SDLCALL |
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| 90 | * By default SDL uses the C calling convention |
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| 91 | */ |
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| 92 | #ifndef SDLCALL |
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| 93 | # if defined(__WIN32__) && !defined(__GNUC__) |
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| 94 | # define SDLCALL __cdecl |
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| 95 | # elif defined(__OS2__) |
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| 96 | # if defined (__GNUC__) && __GNUC__ < 4 |
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| 97 | # /* Added support for GCC-EMX <v4.x */ |
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| 98 | # /* this is needed for XFree86/OS2 developement */ |
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| 99 | # /* F. Ambacher(anakor@snafu.de) 05.2008 */ |
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| 100 | # define SDLCALL _cdecl |
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| 101 | # else |
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| 102 | # /* On other compilers on OS/2, we use the _System calling convention */ |
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| 103 | # /* to be compatible with every compiler */ |
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| 104 | # define SDLCALL _System |
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| 105 | # endif |
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| 106 | # else |
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| 107 | # define SDLCALL |
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| 108 | # endif |
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| 109 | #endif /* SDLCALL */ |
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| 110 | |||
| 111 | #ifdef __SYMBIAN32__ |
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| 112 | #ifndef EKA2 |
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| 113 | #undef DECLSPEC |
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| 114 | #define DECLSPEC |
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| 115 | #elif !defined(__WINS__) |
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| 116 | #undef DECLSPEC |
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| 117 | #define DECLSPEC __declspec(dllexport) |
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| 118 | #endif /* !EKA2 */ |
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| 119 | #endif /* __SYMBIAN32__ */ |
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| 120 | |||
| 121 | /** |
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| 122 | * @file begin_code.h |
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| 123 | * Force structure packing at 4 byte alignment. |
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| 124 | * This is necessary if the header is included in code which has structure |
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| 125 | * packing set to an alternate value, say for loading structures from disk. |
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| 126 | * The packing is reset to the previous value in close_code.h |
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| 127 | */ |
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| 128 | #if defined(_MSC_VER) || defined(__MWERKS__) || defined(__BORLANDC__) |
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| 129 | #ifdef _MSC_VER |
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| 130 | #pragma warning(disable: 4103) |
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| 131 | #endif |
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| 132 | #ifdef __BORLANDC__ |
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| 133 | #pragma nopackwarning |
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| 134 | #endif |
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| 135 | #pragma pack(push,4) |
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| 136 | #elif (defined(__MWERKS__) && defined(__MACOS__)) |
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| 137 | #pragma options align=mac68k4byte |
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| 138 | #pragma enumsalwaysint on |
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| 139 | #endif /* Compiler needs structure packing set */ |
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| 140 | |||
| 141 | /** |
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| 142 | * @def SDL_INLINE_OKAY |
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| 143 | * Set up compiler-specific options for inlining functions |
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| 144 | */ |
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| 145 | #ifndef SDL_INLINE_OKAY |
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| 146 | #ifdef __GNUC__ |
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| 147 | #define SDL_INLINE_OKAY |
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| 148 | #else |
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| 149 | /* Add any special compiler-specific cases here */ |
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| 150 | #if defined(_MSC_VER) || defined(__BORLANDC__) || \ |
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| 151 | defined(__DMC__) || defined(__SC__) || \ |
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| 152 | defined(__WATCOMC__) || defined(__LCC__) || \ |
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| 153 | defined(__DECC) || defined(__EABI__) |
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| 154 | #ifndef __inline__ |
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| 155 | #define __inline__ __inline |
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| 156 | #endif |
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| 157 | #define SDL_INLINE_OKAY |
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| 158 | #else |
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| 159 | #if !defined(__MRC__) && !defined(_SGI_SOURCE) |
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| 160 | #ifndef __inline__ |
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| 161 | #define __inline__ inline |
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| 162 | #endif |
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| 163 | #define SDL_INLINE_OKAY |
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| 164 | #endif /* Not a funky compiler */ |
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| 165 | #endif /* Visual C++ */ |
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| 166 | #endif /* GNU C */ |
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| 167 | #endif /* SDL_INLINE_OKAY */ |
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| 168 | |||
| 169 | /** |
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| 170 | * @def __inline__ |
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| 171 | * If inlining isn't supported, remove "__inline__", turning static |
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| 172 | * inlined functions into static functions (resulting in code bloat |
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| 173 | * in all files which include the offending header files) |
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| 174 | */ |
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| 175 | #ifndef SDL_INLINE_OKAY |
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| 176 | #define __inline__ |
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| 177 | #endif |
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| 178 | |||
| 179 | /** |
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| 180 | * @def NULL |
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| 181 | * Apparently this is needed by several Windows compilers |
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| 182 | */ |
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| 183 | #if !defined(__MACH__) |
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| 184 | #ifndef NULL |
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| 185 | #ifdef __cplusplus |
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| 186 | #define NULL 0 |
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| 187 | #else |
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| 188 | #define NULL ((void *)0) |
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| 189 | #endif |
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| 190 | #endif /* NULL */ |
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| 191 | #endif /* ! Mac OS X - breaks precompiled headers */ |