Mercurial > sdl-ios-xcode
annotate src/events/SDL_events.c @ 3046:47965eacde88
Fix recommended by Eddy L O Jansson
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 19 Jan 2009 03:28:23 +0000 |
parents | 0b160c970b7e |
children | 9da8f57ab92c |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
2859 | 3 Copyright (C) 1997-2009 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 | |
252
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20 slouken@libsdl.org |
0 | 21 */ |
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22 #include "SDL_config.h" |
0 | 23 |
24 /* General event handling code for SDL */ | |
25 | |
26 #include "SDL.h" | |
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27 #include "SDL_events.h" |
0 | 28 #include "SDL_syswm.h" |
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29 #include "SDL_thread.h" |
0 | 30 #include "SDL_sysevents.h" |
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31 #include "SDL_events_c.h" |
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32 #include "../timer/SDL_timer_c.h" |
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33 #if !SDL_JOYSTICK_DISABLED |
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34 #include "../joystick/SDL_joystick_c.h" |
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35 #endif |
0 | 36 |
37 /* Public data -- the event filter */ | |
38 SDL_EventFilter SDL_EventOK = NULL; | |
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39 void *SDL_EventOKParam; |
0 | 40 Uint8 SDL_ProcessEvents[SDL_NUMEVENTS]; |
41 static Uint32 SDL_eventstate = 0; | |
42 | |
43 /* Private data -- event queue */ | |
44 #define MAXEVENTS 128 | |
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45 static struct |
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46 { |
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47 SDL_mutex *lock; |
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48 int active; |
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49 int head; |
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50 int tail; |
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51 SDL_Event event[MAXEVENTS]; |
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52 int wmmsg_next; |
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53 struct SDL_SysWMmsg wmmsg[MAXEVENTS]; |
0 | 54 } SDL_EventQ; |
55 | |
56 /* Private data -- event locking structure */ | |
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57 static struct |
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58 { |
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59 SDL_mutex *lock; |
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60 int safe; |
0 | 61 } SDL_EventLock; |
62 | |
63 /* Thread functions */ | |
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64 static SDL_Thread *SDL_EventThread = NULL; /* Thread handle */ |
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65 static Uint32 event_thread; /* The event thread id */ |
0 | 66 |
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67 void |
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68 SDL_Lock_EventThread(void) |
0 | 69 { |
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70 if (SDL_EventThread && (SDL_ThreadID() != event_thread)) { |
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71 /* Grab lock and spin until we're sure event thread stopped */ |
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72 SDL_mutexP(SDL_EventLock.lock); |
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73 while (!SDL_EventLock.safe) { |
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74 SDL_Delay(1); |
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75 } |
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76 } |
0 | 77 } |
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78 |
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79 void |
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80 SDL_Unlock_EventThread(void) |
0 | 81 { |
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82 if (SDL_EventThread && (SDL_ThreadID() != event_thread)) { |
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83 SDL_mutexV(SDL_EventLock.lock); |
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84 } |
0 | 85 } |
86 | |
1190 | 87 #ifdef __OS2__ |
88 /* | |
89 * We'll increase the priority of GobbleEvents thread, so it will process | |
90 * events in time for sure! For this, we need the DosSetPriority() API | |
91 * from the os2.h include file. | |
92 */ | |
93 #define INCL_DOSPROCESS | |
94 #include <os2.h> | |
95 #include <time.h> | |
96 #endif | |
97 | |
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98 static int SDLCALL |
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99 SDL_GobbleEvents(void *unused) |
0 | 100 { |
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101 event_thread = SDL_ThreadID(); |
1190 | 102 |
103 #ifdef __OS2__ | |
104 #ifdef USE_DOSSETPRIORITY | |
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105 /* Increase thread priority, so it will process events in time for sure! */ |
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106 DosSetPriority(PRTYS_THREAD, PRTYC_REGULAR, +16, 0); |
1190 | 107 #endif |
108 #endif | |
109 | |
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110 while (SDL_EventQ.active) { |
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111 SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
0 | 112 |
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113 /* Get events from the video subsystem */ |
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114 if (_this) { |
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115 _this->PumpEvents(_this); |
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116 } |
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117 #if !SDL_JOYSTICK_DISABLED |
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118 /* Check for joystick state change */ |
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119 if (SDL_numjoysticks && (SDL_eventstate & SDL_JOYEVENTMASK)) { |
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120 SDL_JoystickUpdate(); |
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121 } |
0 | 122 #endif |
123 | |
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124 /* Give up the CPU for the rest of our timeslice */ |
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125 SDL_EventLock.safe = 1; |
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126 if (SDL_timer_running) { |
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127 SDL_ThreadedTimerCheck(); |
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128 } |
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129 SDL_Delay(1); |
0 | 130 |
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131 /* Check for event locking. |
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132 On the P of the lock mutex, if the lock is held, this thread |
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133 will wait until the lock is released before continuing. The |
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134 safe flag will be set, meaning that the other thread can go |
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135 about it's business. The safe flag is reset before the V, |
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136 so as soon as the mutex is free, other threads can see that |
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137 it's not safe to interfere with the event thread. |
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138 */ |
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139 SDL_mutexP(SDL_EventLock.lock); |
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140 SDL_EventLock.safe = 0; |
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141 SDL_mutexV(SDL_EventLock.lock); |
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142 } |
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143 SDL_SetTimerThreaded(0); |
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144 event_thread = 0; |
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145 return (0); |
0 | 146 } |
147 | |
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148 static int |
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149 SDL_StartEventThread(Uint32 flags) |
0 | 150 { |
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151 /* Reset everything to zero */ |
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152 SDL_EventThread = NULL; |
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153 SDL_memset(&SDL_EventLock, 0, sizeof(SDL_EventLock)); |
0 | 154 |
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155 /* Create the lock and set ourselves active */ |
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156 #if !SDL_THREADS_DISABLED |
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157 SDL_EventQ.lock = SDL_CreateMutex(); |
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158 if (SDL_EventQ.lock == NULL) { |
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159 return (-1); |
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160 } |
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161 #endif /* !SDL_THREADS_DISABLED */ |
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162 SDL_EventQ.active = 1; |
0 | 163 |
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164 if ((flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD) { |
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165 SDL_EventLock.lock = SDL_CreateMutex(); |
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166 if (SDL_EventLock.lock == NULL) { |
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167 return (-1); |
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168 } |
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169 SDL_EventLock.safe = 0; |
0 | 170 |
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171 /* The event thread will handle timers too */ |
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172 SDL_SetTimerThreaded(2); |
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173 #if (defined(__WIN32__) && !defined(_WIN32_WCE)) && !defined(HAVE_LIBC) |
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174 #undef SDL_CreateThread |
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175 SDL_EventThread = |
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176 SDL_CreateThread(SDL_GobbleEvents, NULL, NULL, NULL); |
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177 #else |
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178 SDL_EventThread = SDL_CreateThread(SDL_GobbleEvents, NULL); |
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179 #endif |
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180 if (SDL_EventThread == NULL) { |
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181 return (-1); |
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182 } |
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183 } else { |
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184 event_thread = 0; |
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185 } |
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186 return (0); |
0 | 187 } |
188 | |
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189 static void |
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190 SDL_StopEventThread(void) |
0 | 191 { |
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192 SDL_EventQ.active = 0; |
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193 if (SDL_EventThread) { |
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194 SDL_WaitThread(SDL_EventThread, NULL); |
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195 SDL_EventThread = NULL; |
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196 SDL_DestroyMutex(SDL_EventLock.lock); |
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197 } |
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198 #ifndef IPOD |
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199 SDL_DestroyMutex(SDL_EventQ.lock); |
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200 #endif |
0 | 201 } |
202 | |
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203 Uint32 |
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204 SDL_EventThreadID(void) |
0 | 205 { |
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206 return (event_thread); |
0 | 207 } |
208 | |
209 /* Public functions */ | |
210 | |
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211 void |
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212 SDL_StopEventLoop(void) |
0 | 213 { |
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214 /* Halt the event thread, if running */ |
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215 SDL_StopEventThread(); |
0 | 216 |
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217 /* Shutdown event handlers */ |
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218 SDL_KeyboardQuit(); |
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219 SDL_MouseQuit(); |
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220 SDL_QuitQuit(); |
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221 |
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222 /* Clean out EventQ */ |
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223 SDL_EventQ.head = 0; |
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224 SDL_EventQ.tail = 0; |
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225 SDL_EventQ.wmmsg_next = 0; |
0 | 226 } |
227 | |
228 /* This function (and associated calls) may be called more than once */ | |
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229 int |
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230 SDL_StartEventLoop(Uint32 flags) |
0 | 231 { |
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232 int retcode; |
0 | 233 |
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234 /* Clean out the event queue */ |
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235 SDL_EventThread = NULL; |
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236 SDL_EventQ.lock = NULL; |
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237 SDL_StopEventLoop(); |
0 | 238 |
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239 /* No filter to start with, process most event types */ |
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240 SDL_EventOK = NULL; |
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241 SDL_memset(SDL_ProcessEvents, SDL_ENABLE, sizeof(SDL_ProcessEvents)); |
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242 SDL_eventstate = ~0; |
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243 /* It's not save to call SDL_EventState() yet */ |
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244 SDL_eventstate &= ~(0x00000001 << SDL_SYSWMEVENT); |
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245 SDL_ProcessEvents[SDL_SYSWMEVENT] = SDL_IGNORE; |
0 | 246 |
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247 /* Initialize event handlers */ |
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248 retcode = 0; |
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249 retcode += SDL_KeyboardInit(); |
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250 retcode += SDL_MouseInit(); |
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251 retcode += SDL_QuitInit(); |
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252 if (retcode < 0) { |
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253 /* We don't expect them to fail, but... */ |
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254 return (-1); |
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255 } |
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256 |
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257 /* Create the lock and event thread */ |
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258 if (SDL_StartEventThread(flags) < 0) { |
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259 SDL_StopEventLoop(); |
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260 return (-1); |
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261 } |
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262 return (0); |
0 | 263 } |
264 | |
265 | |
266 /* Add an event to the event queue -- called with the queue locked */ | |
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267 static int |
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268 SDL_AddEvent(SDL_Event * event) |
0 | 269 { |
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270 int tail, added; |
0 | 271 |
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272 tail = (SDL_EventQ.tail + 1) % MAXEVENTS; |
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273 if (tail == SDL_EventQ.head) { |
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274 /* Overflow, drop event */ |
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275 added = 0; |
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276 } else { |
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277 SDL_EventQ.event[SDL_EventQ.tail] = *event; |
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278 if (event->type == SDL_SYSWMEVENT) { |
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279 /* Note that it's possible to lose an event */ |
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280 int next = SDL_EventQ.wmmsg_next; |
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281 SDL_EventQ.wmmsg[next] = *event->syswm.msg; |
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282 SDL_EventQ.event[SDL_EventQ.tail].syswm.msg = |
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283 &SDL_EventQ.wmmsg[next]; |
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284 SDL_EventQ.wmmsg_next = (next + 1) % MAXEVENTS; |
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285 } |
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286 SDL_EventQ.tail = tail; |
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287 added = 1; |
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288 } |
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289 return (added); |
0 | 290 } |
291 | |
292 /* Cut an event, and return the next valid spot, or the tail */ | |
293 /* -- called with the queue locked */ | |
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294 static int |
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295 SDL_CutEvent(int spot) |
0 | 296 { |
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297 if (spot == SDL_EventQ.head) { |
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298 SDL_EventQ.head = (SDL_EventQ.head + 1) % MAXEVENTS; |
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299 return (SDL_EventQ.head); |
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300 } else if ((spot + 1) % MAXEVENTS == SDL_EventQ.tail) { |
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301 SDL_EventQ.tail = spot; |
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302 return (SDL_EventQ.tail); |
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303 } else |
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304 /* We cut the middle -- shift everything over */ |
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305 { |
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306 int here, next; |
0 | 307 |
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308 /* This can probably be optimized with SDL_memcpy() -- careful! */ |
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309 if (--SDL_EventQ.tail < 0) { |
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310 SDL_EventQ.tail = MAXEVENTS - 1; |
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311 } |
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312 for (here = spot; here != SDL_EventQ.tail; here = next) { |
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313 next = (here + 1) % MAXEVENTS; |
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314 SDL_EventQ.event[here] = SDL_EventQ.event[next]; |
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315 } |
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316 return (spot); |
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317 } |
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318 /* NOTREACHED */ |
0 | 319 } |
320 | |
321 /* Lock the event queue, take a peep at it, and unlock it */ | |
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322 int |
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323 SDL_PeepEvents(SDL_Event * events, int numevents, SDL_eventaction action, |
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324 Uint32 mask) |
0 | 325 { |
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326 int i, used; |
0 | 327 |
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328 /* Don't look after we've quit */ |
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329 if (!SDL_EventQ.active) { |
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330 return (-1); |
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331 } |
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332 /* Lock the event queue */ |
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333 used = 0; |
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334 if (SDL_mutexP(SDL_EventQ.lock) == 0) { |
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335 if (action == SDL_ADDEVENT) { |
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336 for (i = 0; i < numevents; ++i) { |
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337 used += SDL_AddEvent(&events[i]); |
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338 } |
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339 } else { |
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340 SDL_Event tmpevent; |
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341 int spot; |
0 | 342 |
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343 /* If 'events' is NULL, just see if they exist */ |
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344 if (events == NULL) { |
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345 action = SDL_PEEKEVENT; |
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346 numevents = 1; |
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347 events = &tmpevent; |
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348 } |
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349 spot = SDL_EventQ.head; |
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350 while ((used < numevents) && (spot != SDL_EventQ.tail)) { |
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351 if (mask & SDL_EVENTMASK(SDL_EventQ.event[spot].type)) { |
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352 events[used++] = SDL_EventQ.event[spot]; |
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353 if (action == SDL_GETEVENT) { |
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354 spot = SDL_CutEvent(spot); |
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355 } else { |
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356 spot = (spot + 1) % MAXEVENTS; |
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357 } |
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358 } else { |
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359 spot = (spot + 1) % MAXEVENTS; |
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360 } |
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361 } |
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362 } |
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363 SDL_mutexV(SDL_EventQ.lock); |
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364 } else { |
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365 SDL_SetError("Couldn't lock event queue"); |
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366 used = -1; |
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367 } |
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368 return (used); |
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369 } |
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370 |
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371 SDL_bool |
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372 SDL_HasEvent(Uint32 mask) |
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373 { |
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374 return (SDL_PeepEvents(NULL, 0, SDL_PEEKEVENT, mask) > 0); |
0 | 375 } |
376 | |
377 /* Run the system dependent event loops */ | |
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378 void |
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379 SDL_PumpEvents(void) |
0 | 380 { |
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381 if (!SDL_EventThread) { |
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382 SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
0 | 383 |
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384 /* Get events from the video subsystem */ |
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385 if (_this) { |
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386 _this->PumpEvents(_this); |
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387 } |
1361
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388 #if !SDL_JOYSTICK_DISABLED |
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389 /* Check for joystick state change */ |
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390 if (SDL_numjoysticks && (SDL_eventstate & SDL_JOYEVENTMASK)) { |
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391 SDL_JoystickUpdate(); |
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392 } |
0 | 393 #endif |
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394 } |
0 | 395 } |
396 | |
397 /* Public functions */ | |
398 | |
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399 int |
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400 SDL_PollEvent(SDL_Event * event) |
0 | 401 { |
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402 SDL_PumpEvents(); |
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403 |
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404 /* We can't return -1, just return 0 (no event) on error */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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405 if (SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS) <= 0) |
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406 return 0; |
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407 return 1; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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408 } |
0 | 409 |
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410 int |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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411 SDL_WaitEvent(SDL_Event * event) |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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412 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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413 while (1) { |
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|
414 SDL_PumpEvents(); |
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415 switch (SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS)) { |
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416 case -1: |
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417 return 0; |
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418 case 1: |
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419 return 1; |
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420 case 0: |
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421 SDL_Delay(10); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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422 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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|
423 } |
0 | 424 } |
425 | |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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426 int |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
427 SDL_PushEvent(SDL_Event * event) |
0 | 428 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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429 if (SDL_EventOK && !SDL_EventOK(SDL_EventOKParam, event)) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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430 return 0; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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|
431 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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432 if (SDL_PeepEvents(event, 1, SDL_ADDEVENT, 0) <= 0) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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433 return -1; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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434 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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435 return 1; |
0 | 436 } |
437 | |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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438 void |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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439 SDL_SetEventFilter(SDL_EventFilter filter, void *userdata) |
0 | 440 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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441 SDL_Event bitbucket; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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442 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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443 /* Set filter and discard pending events */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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444 SDL_EventOK = filter; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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445 SDL_EventOKParam = userdata; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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446 while (SDL_PollEvent(&bitbucket) > 0); |
0 | 447 } |
448 | |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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449 SDL_bool |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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450 SDL_GetEventFilter(SDL_EventFilter * filter, void **userdata) |
0 | 451 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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452 if (filter) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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453 *filter = SDL_EventOK; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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454 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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455 if (userdata) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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456 *userdata = SDL_EventOKParam; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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457 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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458 return SDL_EventOK ? SDL_TRUE : SDL_FALSE; |
0 | 459 } |
460 | |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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461 void |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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462 SDL_FilterEvents(SDL_EventFilter filter, void *userdata) |
0 | 463 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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464 if (SDL_mutexP(SDL_EventQ.lock) == 0) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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465 int spot; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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466 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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467 spot = SDL_EventQ.head; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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468 while (spot != SDL_EventQ.tail) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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469 if (filter(userdata, &SDL_EventQ.event[spot])) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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470 spot = (spot + 1) % MAXEVENTS; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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471 } else { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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472 spot = SDL_CutEvent(spot); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
473 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
474 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
475 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
476 SDL_mutexV(SDL_EventQ.lock); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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|
477 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
478 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
479 Uint8 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
480 SDL_EventState(Uint8 type, int state) |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
481 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
482 SDL_Event bitbucket; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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483 Uint8 current_state; |
0 | 484 |
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|
485 /* If SDL_ALLEVENTS was specified... */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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486 if (type == 0xFF) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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487 current_state = SDL_IGNORE; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
488 for (type = 0; type < SDL_NUMEVENTS; ++type) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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489 if (SDL_ProcessEvents[type] != SDL_IGNORE) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
490 current_state = SDL_ENABLE; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
491 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
492 SDL_ProcessEvents[type] = state; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
493 if (state == SDL_ENABLE) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
494 SDL_eventstate |= (0x00000001 << (type)); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
495 } else { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
496 SDL_eventstate &= ~(0x00000001 << (type)); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
497 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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changeset
|
498 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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|
499 while (SDL_PollEvent(&bitbucket) > 0); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
500 return (current_state); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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|
501 } |
0 | 502 |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
503 /* Just set the state for one event type */ |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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|
504 current_state = SDL_ProcessEvents[type]; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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|
505 switch (state) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
506 case SDL_IGNORE: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
507 case SDL_ENABLE: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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changeset
|
508 /* Set state and discard pending events */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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changeset
|
509 SDL_ProcessEvents[type] = state; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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|
510 if (state == SDL_ENABLE) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff
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|
511 SDL_eventstate |= (0x00000001 << (type)); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff
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|
512 } else { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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changeset
|
513 SDL_eventstate &= ~(0x00000001 << (type)); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
514 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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changeset
|
515 while (SDL_PollEvent(&bitbucket) > 0); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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changeset
|
516 break; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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changeset
|
517 default: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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changeset
|
518 /* Querying state? */ |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
519 break; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
520 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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changeset
|
521 return (current_state); |
0 | 522 } |
523 | |
524 /* This is a generic event handler. | |
525 */ | |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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changeset
|
526 int |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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changeset
|
527 SDL_SendSysWMEvent(SDL_SysWMmsg * message) |
0 | 528 { |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
529 int posted; |
0 | 530 |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
531 posted = 0; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
532 if (SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
533 SDL_Event event; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
534 SDL_memset(&event, 0, sizeof(event)); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
535 event.type = SDL_SYSWMEVENT; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
536 event.syswm.msg = message; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
537 posted = (SDL_PushEvent(&event) > 0); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
538 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
539 /* Update internal event state */ |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
540 return (posted); |
0 | 541 } |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff
changeset
|
542 |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
543 /* vi: set ts=4 sw=4 expandtab: */ |