Mercurial > sdl-ios-xcode
annotate src/SDL.c @ 4066:58a5055da431 SDL-1.2
More improvements for bug #373
Show the SDL cursor in the window and the arrow cursor outside the window.
This is also supposed to show the SDL cursor when activated, but that code
isn't working yet...
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 14 Jul 2007 08:27:06 +0000 |
| parents | 8582c6a5ca16 |
| children | a1b03ba2fcd0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 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 Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 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 | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
|
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 /* Initialization code for SDL */ | |
| 25 | |
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26 #include "SDL.h" |
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27 #include "SDL_fatal.h" |
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28 #if !SDL_VIDEO_DISABLED |
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29 #include "video/SDL_leaks.h" |
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30 #endif |
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31 |
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32 #if SDL_THREAD_PTH |
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33 #include <pth.h> |
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34 #endif |
| 0 | 35 |
| 36 /* Initialization/Cleanup routines */ | |
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37 #if !SDL_JOYSTICK_DISABLED |
| 0 | 38 extern int SDL_JoystickInit(void); |
| 39 extern void SDL_JoystickQuit(void); | |
| 40 #endif | |
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41 #if !SDL_CDROM_DISABLED |
| 0 | 42 extern int SDL_CDROMInit(void); |
| 43 extern void SDL_CDROMQuit(void); | |
| 44 #endif | |
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45 #if !SDL_TIMERS_DISABLED |
| 0 | 46 extern void SDL_StartTicks(void); |
| 47 extern int SDL_TimerInit(void); | |
| 48 extern void SDL_TimerQuit(void); | |
| 49 #endif | |
| 50 | |
| 51 /* The current SDL version */ | |
| 52 static SDL_version version = | |
| 53 { SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL }; | |
| 54 | |
| 55 /* The initialized subsystems */ | |
| 56 static Uint32 SDL_initialized = 0; | |
|
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57 #if !SDL_TIMERS_DISABLED |
| 0 | 58 static Uint32 ticks_started = 0; |
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59 #endif |
| 0 | 60 |
| 61 #ifdef CHECK_LEAKS | |
| 62 int surfaces_allocated = 0; | |
| 63 #endif | |
| 64 | |
| 65 int SDL_InitSubSystem(Uint32 flags) | |
| 66 { | |
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67 #if !SDL_VIDEO_DISABLED |
| 0 | 68 /* Initialize the video/event subsystem */ |
| 69 if ( (flags & SDL_INIT_VIDEO) && !(SDL_initialized & SDL_INIT_VIDEO) ) { | |
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70 if ( SDL_VideoInit(SDL_getenv("SDL_VIDEODRIVER"), |
| 0 | 71 (flags&SDL_INIT_EVENTTHREAD)) < 0 ) { |
| 72 return(-1); | |
| 73 } | |
| 74 SDL_initialized |= SDL_INIT_VIDEO; | |
| 75 } | |
| 76 #else | |
| 77 if ( flags & SDL_INIT_VIDEO ) { | |
| 78 SDL_SetError("SDL not built with video support"); | |
| 79 return(-1); | |
| 80 } | |
| 81 #endif | |
| 82 | |
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83 #if !SDL_AUDIO_DISABLED |
| 0 | 84 /* Initialize the audio subsystem */ |
| 85 if ( (flags & SDL_INIT_AUDIO) && !(SDL_initialized & SDL_INIT_AUDIO) ) { | |
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86 if ( SDL_AudioInit(SDL_getenv("SDL_AUDIODRIVER")) < 0 ) { |
| 0 | 87 return(-1); |
| 88 } | |
| 89 SDL_initialized |= SDL_INIT_AUDIO; | |
| 90 } | |
| 91 #else | |
| 92 if ( flags & SDL_INIT_AUDIO ) { | |
| 93 SDL_SetError("SDL not built with audio support"); | |
| 94 return(-1); | |
| 95 } | |
| 96 #endif | |
| 97 | |
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98 #if !SDL_TIMERS_DISABLED |
| 0 | 99 /* Initialize the timer subsystem */ |
| 100 if ( ! ticks_started ) { | |
| 101 SDL_StartTicks(); | |
| 102 ticks_started = 1; | |
| 103 } | |
| 104 if ( (flags & SDL_INIT_TIMER) && !(SDL_initialized & SDL_INIT_TIMER) ) { | |
| 105 if ( SDL_TimerInit() < 0 ) { | |
| 106 return(-1); | |
| 107 } | |
| 108 SDL_initialized |= SDL_INIT_TIMER; | |
| 109 } | |
| 110 #else | |
| 111 if ( flags & SDL_INIT_TIMER ) { | |
| 112 SDL_SetError("SDL not built with timer support"); | |
| 113 return(-1); | |
| 114 } | |
| 115 #endif | |
| 116 | |
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117 #if !SDL_JOYSTICK_DISABLED |
| 0 | 118 /* Initialize the joystick subsystem */ |
| 119 if ( (flags & SDL_INIT_JOYSTICK) && | |
| 120 !(SDL_initialized & SDL_INIT_JOYSTICK) ) { | |
| 121 if ( SDL_JoystickInit() < 0 ) { | |
| 122 return(-1); | |
| 123 } | |
| 124 SDL_initialized |= SDL_INIT_JOYSTICK; | |
| 125 } | |
| 126 #else | |
| 127 if ( flags & SDL_INIT_JOYSTICK ) { | |
| 128 SDL_SetError("SDL not built with joystick support"); | |
| 129 return(-1); | |
| 130 } | |
| 131 #endif | |
| 132 | |
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133 #if !SDL_CDROM_DISABLED |
| 0 | 134 /* Initialize the CD-ROM subsystem */ |
| 135 if ( (flags & SDL_INIT_CDROM) && !(SDL_initialized & SDL_INIT_CDROM) ) { | |
| 136 if ( SDL_CDROMInit() < 0 ) { | |
| 137 return(-1); | |
| 138 } | |
| 139 SDL_initialized |= SDL_INIT_CDROM; | |
| 140 } | |
| 141 #else | |
| 142 if ( flags & SDL_INIT_CDROM ) { | |
| 143 SDL_SetError("SDL not built with cdrom support"); | |
| 144 return(-1); | |
| 145 } | |
| 146 #endif | |
| 147 return(0); | |
| 148 } | |
| 149 | |
| 150 int SDL_Init(Uint32 flags) | |
| 151 { | |
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152 #if !SDL_THREADS_DISABLED && SDL_THREAD_PTH |
| 397 | 153 if (!pth_init()) { |
| 154 return -1; | |
| 155 } | |
| 156 #endif | |
| 157 | |
| 0 | 158 /* Clear the error message */ |
| 159 SDL_ClearError(); | |
| 160 | |
| 161 /* Initialize the desired subsystems */ | |
| 162 if ( SDL_InitSubSystem(flags) < 0 ) { | |
| 163 return(-1); | |
| 164 } | |
| 165 | |
| 166 /* Everything is initialized */ | |
| 167 if ( !(flags & SDL_INIT_NOPARACHUTE) ) { | |
| 168 SDL_InstallParachute(); | |
| 169 } | |
| 170 return(0); | |
| 171 } | |
| 172 | |
| 173 void SDL_QuitSubSystem(Uint32 flags) | |
| 174 { | |
| 175 /* Shut down requested initialized subsystems */ | |
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176 #if !SDL_CDROM_DISABLED |
| 0 | 177 if ( (flags & SDL_initialized & SDL_INIT_CDROM) ) { |
| 178 SDL_CDROMQuit(); | |
| 179 SDL_initialized &= ~SDL_INIT_CDROM; | |
| 180 } | |
| 181 #endif | |
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182 #if !SDL_JOYSTICK_DISABLED |
| 0 | 183 if ( (flags & SDL_initialized & SDL_INIT_JOYSTICK) ) { |
| 184 SDL_JoystickQuit(); | |
| 185 SDL_initialized &= ~SDL_INIT_JOYSTICK; | |
| 186 } | |
| 187 #endif | |
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188 #if !SDL_TIMERS_DISABLED |
| 0 | 189 if ( (flags & SDL_initialized & SDL_INIT_TIMER) ) { |
| 190 SDL_TimerQuit(); | |
| 191 SDL_initialized &= ~SDL_INIT_TIMER; | |
| 192 } | |
| 193 #endif | |
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194 #if !SDL_AUDIO_DISABLED |
| 0 | 195 if ( (flags & SDL_initialized & SDL_INIT_AUDIO) ) { |
| 196 SDL_AudioQuit(); | |
| 197 SDL_initialized &= ~SDL_INIT_AUDIO; | |
| 198 } | |
| 199 #endif | |
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200 #if !SDL_VIDEO_DISABLED |
| 0 | 201 if ( (flags & SDL_initialized & SDL_INIT_VIDEO) ) { |
| 202 SDL_VideoQuit(); | |
| 203 SDL_initialized &= ~SDL_INIT_VIDEO; | |
| 204 } | |
| 205 #endif | |
| 206 } | |
| 207 | |
| 208 Uint32 SDL_WasInit(Uint32 flags) | |
| 209 { | |
| 210 if ( ! flags ) { | |
| 211 flags = SDL_INIT_EVERYTHING; | |
| 212 } | |
| 213 return (SDL_initialized&flags); | |
| 214 } | |
| 215 | |
| 216 void SDL_Quit(void) | |
| 217 { | |
| 218 /* Quit all subsystems */ | |
| 1190 | 219 #ifdef DEBUG_BUILD |
| 220 printf("[SDL_Quit] : Enter! Calling QuitSubSystem()\n"); fflush(stdout); | |
| 221 #endif | |
| 0 | 222 SDL_QuitSubSystem(SDL_INIT_EVERYTHING); |
| 223 | |
| 224 #ifdef CHECK_LEAKS | |
| 1190 | 225 #ifdef DEBUG_BUILD |
| 226 printf("[SDL_Quit] : CHECK_LEAKS\n"); fflush(stdout); | |
| 227 #endif | |
| 228 | |
| 0 | 229 /* Print the number of surfaces not freed */ |
| 230 if ( surfaces_allocated != 0 ) { | |
| 231 fprintf(stderr, "SDL Warning: %d SDL surfaces extant\n", | |
| 232 surfaces_allocated); | |
| 233 } | |
| 234 #endif | |
| 1190 | 235 #ifdef DEBUG_BUILD |
| 236 printf("[SDL_Quit] : SDL_UninstallParachute()\n"); fflush(stdout); | |
| 237 #endif | |
| 0 | 238 |
| 239 /* Uninstall any parachute signal handlers */ | |
| 240 SDL_UninstallParachute(); | |
| 397 | 241 |
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242 #if !SDL_THREADS_DISABLED && SDL_THREAD_PTH |
| 397 | 243 pth_kill(); |
| 244 #endif | |
| 1190 | 245 #ifdef DEBUG_BUILD |
| 246 printf("[SDL_Quit] : Returning!\n"); fflush(stdout); | |
| 247 #endif | |
| 248 | |
| 0 | 249 } |
| 250 | |
| 251 /* Return the library version number */ | |
| 252 const SDL_version * SDL_Linked_Version(void) | |
| 253 { | |
| 254 return(&version); | |
| 255 } | |
| 256 | |
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257 #if defined(__OS2__) |
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258 /* Building for OS/2 */ |
| 1190 | 259 #ifdef __WATCOMC__ |
| 260 | |
| 261 #define INCL_DOSERRORS | |
| 262 #define INCL_DOSEXCEPTIONS | |
| 263 #include <os2.h> | |
| 264 | |
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265 /* Exception handler to prevent the Audio thread hanging, making a zombie process! */ |
| 1190 | 266 ULONG _System SDL_Main_ExceptionHandler(PEXCEPTIONREPORTRECORD pERepRec, |
| 267 PEXCEPTIONREGISTRATIONRECORD pERegRec, | |
| 268 PCONTEXTRECORD pCtxRec, | |
| 269 PVOID p) | |
| 270 { | |
| 271 if (pERepRec->fHandlerFlags & EH_EXIT_UNWIND) | |
| 272 return XCPT_CONTINUE_SEARCH; | |
| 273 if (pERepRec->fHandlerFlags & EH_UNWINDING) | |
| 274 return XCPT_CONTINUE_SEARCH; | |
| 275 if (pERepRec->fHandlerFlags & EH_NESTED_CALL) | |
| 276 return XCPT_CONTINUE_SEARCH; | |
| 277 | |
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278 /* Do cleanup at every fatal exception! */ |
| 1190 | 279 if (((pERepRec->ExceptionNum & XCPT_SEVERITY_CODE) == XCPT_FATAL_EXCEPTION) && |
| 280 (pERepRec->ExceptionNum != XCPT_BREAKPOINT) && | |
| 281 (pERepRec->ExceptionNum != XCPT_SINGLE_STEP) | |
| 282 ) | |
| 283 { | |
| 284 if (SDL_initialized & SDL_INIT_AUDIO) | |
| 285 { | |
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286 /* This removes the zombie audio thread in case of emergency. */ |
| 1190 | 287 #ifdef DEBUG_BUILD |
| 288 printf("[SDL_Main_ExceptionHandler] : Calling SDL_CloseAudio()!\n"); | |
| 289 #endif | |
| 290 SDL_CloseAudio(); | |
| 291 } | |
| 292 } | |
| 293 return (XCPT_CONTINUE_SEARCH); | |
| 294 } | |
| 295 | |
| 296 | |
| 297 EXCEPTIONREGISTRATIONRECORD SDL_Main_xcpthand = {0, SDL_Main_ExceptionHandler}; | |
| 298 | |
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299 /* The main DLL entry for DLL Initialization and Uninitialization: */ |
| 1190 | 300 unsigned _System LibMain(unsigned hmod, unsigned termination) |
| 301 { | |
| 302 if (termination) | |
| 303 { | |
| 304 #ifdef DEBUG_BUILD | |
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305 /* printf("[SDL DLL Unintialization] : Removing exception handler\n"); */ |
| 1190 | 306 #endif |
| 307 DosUnsetExceptionHandler(&SDL_Main_xcpthand); | |
| 308 return 1; | |
| 309 } else | |
| 310 { | |
| 311 #ifdef DEBUG_BUILD | |
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312 /* Make stdout and stderr unbuffered! */ |
| 1190 | 313 setbuf(stdout, NULL); |
| 314 setbuf(stderr, NULL); | |
| 315 #endif | |
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316 /* Fire up exception handler */ |
| 1190 | 317 #ifdef DEBUG_BUILD |
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318 /* printf("[SDL DLL Initialization] : Setting exception handler\n"); */ |
| 1190 | 319 #endif |
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320 /* Set exception handler */ |
| 1190 | 321 DosSetExceptionHandler(&SDL_Main_xcpthand); |
| 322 | |
| 323 return 1; | |
| 324 } | |
| 325 } | |
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326 #endif /* __WATCOMC__ */ |
| 1190 | 327 |
| 3975 | 328 #elif defined(__WIN32__) && !defined(__SYMBIAN32__) |
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329 |
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330 #if !defined(HAVE_LIBC) || (defined(__WATCOMC__) && defined(BUILD_DLL)) |
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331 /* Need to include DllMain() on Watcom C for some reason.. */ |
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332 #define WIN32_LEAN_AND_MEAN |
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333 #include <windows.h> |
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334 |
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It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1312
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335 BOOL APIENTRY _DllMainCRTStartup( HANDLE hModule, |
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It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
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336 DWORD ul_reason_for_call, |
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It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
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337 LPVOID lpReserved ) |
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450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
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338 { |
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450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1312
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339 switch (ul_reason_for_call) { |
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450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1312
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changeset
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340 case DLL_PROCESS_ATTACH: |
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450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1312
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changeset
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341 case DLL_THREAD_ATTACH: |
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450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
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342 case DLL_THREAD_DETACH: |
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450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
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343 case DLL_PROCESS_DETACH: |
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450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1312
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344 break; |
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It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1312
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345 } |
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450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1312
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346 return TRUE; |
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450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1312
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347 } |
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1465
8dfa9a6d69a5
Updated WinCE support by Dmitry (with some tweaks)
Sam Lantinga <slouken@libsdl.org>
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348 #endif /* building DLL with Watcom C */ |
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1330
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It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
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349 |
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1402
d910939febfa
Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
1361
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350 #endif /* OS/2 elif __WIN32__ */ |