Mercurial > sdl-ios-xcode
annotate src/events/SDL_events.c @ 3708:d3f7cf8b0db0
Fixed typo in the comment
author | Sam Lantinga <slouken@libsdl.org> |
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date | Fri, 26 Feb 2010 03:34:10 +0000 |
parents | f7b03b6838cb |
children | faa9fc8e7f67 |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
3697 | 3 Copyright (C) 1997-2010 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 /* 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 */ |
3578 | 65 static SDL_threadID 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 | |
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87 static int SDLCALL |
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88 SDL_GobbleEvents(void *unused) |
0 | 89 { |
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90 event_thread = SDL_ThreadID(); |
1190 | 91 |
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92 while (SDL_EventQ.active) { |
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93 SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
0 | 94 |
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95 /* Get events from the video subsystem */ |
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96 if (_this) { |
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97 _this->PumpEvents(_this); |
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98 } |
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99 #if !SDL_JOYSTICK_DISABLED |
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100 /* Check for joystick state change */ |
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101 if (SDL_numjoysticks && (SDL_eventstate & SDL_JOYEVENTMASK)) { |
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102 SDL_JoystickUpdate(); |
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103 } |
0 | 104 #endif |
105 | |
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106 /* Give up the CPU for the rest of our timeslice */ |
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107 SDL_EventLock.safe = 1; |
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108 if (SDL_timer_running) { |
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109 SDL_ThreadedTimerCheck(); |
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110 } |
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111 SDL_Delay(1); |
0 | 112 |
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113 /* Check for event locking. |
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114 On the P of the lock mutex, if the lock is held, this thread |
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115 will wait until the lock is released before continuing. The |
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116 safe flag will be set, meaning that the other thread can go |
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117 about it's business. The safe flag is reset before the V, |
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118 so as soon as the mutex is free, other threads can see that |
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119 it's not safe to interfere with the event thread. |
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120 */ |
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121 SDL_mutexP(SDL_EventLock.lock); |
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122 SDL_EventLock.safe = 0; |
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123 SDL_mutexV(SDL_EventLock.lock); |
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124 } |
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125 SDL_SetTimerThreaded(0); |
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126 event_thread = 0; |
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127 return (0); |
0 | 128 } |
129 | |
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130 static int |
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131 SDL_StartEventThread(Uint32 flags) |
0 | 132 { |
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133 /* Reset everything to zero */ |
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134 SDL_EventThread = NULL; |
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135 SDL_memset(&SDL_EventLock, 0, sizeof(SDL_EventLock)); |
0 | 136 |
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137 /* Create the lock and set ourselves active */ |
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138 #if !SDL_THREADS_DISABLED |
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139 SDL_EventQ.lock = SDL_CreateMutex(); |
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140 if (SDL_EventQ.lock == NULL) { |
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141 return (-1); |
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142 } |
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143 #endif /* !SDL_THREADS_DISABLED */ |
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144 SDL_EventQ.active = 1; |
0 | 145 |
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146 if ((flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD) { |
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147 SDL_EventLock.lock = SDL_CreateMutex(); |
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148 if (SDL_EventLock.lock == NULL) { |
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149 return (-1); |
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150 } |
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151 SDL_EventLock.safe = 0; |
0 | 152 |
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153 /* The event thread will handle timers too */ |
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154 SDL_SetTimerThreaded(2); |
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155 #if (defined(__WIN32__) && !defined(_WIN32_WCE)) && !defined(HAVE_LIBC) |
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156 #undef SDL_CreateThread |
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157 SDL_EventThread = |
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158 SDL_CreateThread(SDL_GobbleEvents, NULL, NULL, NULL); |
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159 #else |
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160 SDL_EventThread = SDL_CreateThread(SDL_GobbleEvents, NULL); |
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161 #endif |
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162 if (SDL_EventThread == NULL) { |
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163 return (-1); |
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164 } |
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165 } else { |
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166 event_thread = 0; |
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167 } |
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168 return (0); |
0 | 169 } |
170 | |
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171 static void |
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172 SDL_StopEventThread(void) |
0 | 173 { |
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174 SDL_EventQ.active = 0; |
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175 if (SDL_EventThread) { |
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176 SDL_WaitThread(SDL_EventThread, NULL); |
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177 SDL_EventThread = NULL; |
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178 SDL_DestroyMutex(SDL_EventLock.lock); |
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179 SDL_EventLock.lock = NULL; |
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180 } |
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181 if (SDL_EventQ.lock) { |
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182 SDL_DestroyMutex(SDL_EventQ.lock); |
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183 SDL_EventQ.lock = NULL; |
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184 } |
0 | 185 } |
186 | |
3578 | 187 SDL_threadID |
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188 SDL_EventThreadID(void) |
0 | 189 { |
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190 return (event_thread); |
0 | 191 } |
192 | |
193 /* Public functions */ | |
194 | |
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195 void |
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196 SDL_StopEventLoop(void) |
0 | 197 { |
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198 /* Halt the event thread, if running */ |
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199 SDL_StopEventThread(); |
0 | 200 |
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201 /* Shutdown event handlers */ |
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202 SDL_KeyboardQuit(); |
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203 SDL_MouseQuit(); |
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204 SDL_QuitQuit(); |
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205 |
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206 /* Clean out EventQ */ |
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207 SDL_EventQ.head = 0; |
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208 SDL_EventQ.tail = 0; |
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209 SDL_EventQ.wmmsg_next = 0; |
0 | 210 } |
211 | |
212 /* This function (and associated calls) may be called more than once */ | |
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213 int |
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214 SDL_StartEventLoop(Uint32 flags) |
0 | 215 { |
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216 int retcode; |
0 | 217 |
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218 /* Clean out the event queue */ |
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219 SDL_EventThread = NULL; |
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220 SDL_EventQ.lock = NULL; |
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221 SDL_StopEventLoop(); |
0 | 222 |
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223 /* No filter to start with, process most event types */ |
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224 SDL_EventOK = NULL; |
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225 SDL_memset(SDL_ProcessEvents, SDL_ENABLE, sizeof(SDL_ProcessEvents)); |
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226 SDL_eventstate = ~0; |
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227 /* It's not save to call SDL_EventState() yet */ |
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228 SDL_eventstate &= ~(0x00000001 << SDL_SYSWMEVENT); |
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229 SDL_ProcessEvents[SDL_SYSWMEVENT] = SDL_IGNORE; |
0 | 230 |
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231 /* Initialize event handlers */ |
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232 retcode = 0; |
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233 retcode += SDL_KeyboardInit(); |
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234 retcode += SDL_MouseInit(); |
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235 retcode += SDL_QuitInit(); |
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236 if (retcode < 0) { |
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237 /* We don't expect them to fail, but... */ |
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238 return (-1); |
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239 } |
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240 |
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241 /* Create the lock and event thread */ |
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242 if (SDL_StartEventThread(flags) < 0) { |
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243 SDL_StopEventLoop(); |
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244 return (-1); |
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245 } |
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246 return (0); |
0 | 247 } |
248 | |
249 | |
250 /* Add an event to the event queue -- called with the queue locked */ | |
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251 static int |
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252 SDL_AddEvent(SDL_Event * event) |
0 | 253 { |
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254 int tail, added; |
0 | 255 |
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256 tail = (SDL_EventQ.tail + 1) % MAXEVENTS; |
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257 if (tail == SDL_EventQ.head) { |
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258 /* Overflow, drop event */ |
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259 added = 0; |
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260 } else { |
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261 SDL_EventQ.event[SDL_EventQ.tail] = *event; |
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262 if (event->type == SDL_SYSWMEVENT) { |
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263 /* Note that it's possible to lose an event */ |
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264 int next = SDL_EventQ.wmmsg_next; |
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265 SDL_EventQ.wmmsg[next] = *event->syswm.msg; |
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266 SDL_EventQ.event[SDL_EventQ.tail].syswm.msg = |
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267 &SDL_EventQ.wmmsg[next]; |
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268 SDL_EventQ.wmmsg_next = (next + 1) % MAXEVENTS; |
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269 } |
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270 SDL_EventQ.tail = tail; |
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271 added = 1; |
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272 } |
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273 return (added); |
0 | 274 } |
275 | |
276 /* Cut an event, and return the next valid spot, or the tail */ | |
277 /* -- called with the queue locked */ | |
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278 static int |
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279 SDL_CutEvent(int spot) |
0 | 280 { |
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281 if (spot == SDL_EventQ.head) { |
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282 SDL_EventQ.head = (SDL_EventQ.head + 1) % MAXEVENTS; |
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283 return (SDL_EventQ.head); |
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284 } else if ((spot + 1) % MAXEVENTS == SDL_EventQ.tail) { |
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285 SDL_EventQ.tail = spot; |
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286 return (SDL_EventQ.tail); |
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287 } else |
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288 /* We cut the middle -- shift everything over */ |
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289 { |
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290 int here, next; |
0 | 291 |
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292 /* This can probably be optimized with SDL_memcpy() -- careful! */ |
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293 if (--SDL_EventQ.tail < 0) { |
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294 SDL_EventQ.tail = MAXEVENTS - 1; |
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295 } |
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296 for (here = spot; here != SDL_EventQ.tail; here = next) { |
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297 next = (here + 1) % MAXEVENTS; |
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298 SDL_EventQ.event[here] = SDL_EventQ.event[next]; |
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299 } |
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300 return (spot); |
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301 } |
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302 /* NOTREACHED */ |
0 | 303 } |
304 | |
305 /* Lock the event queue, take a peep at it, and unlock it */ | |
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306 int |
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307 SDL_PeepEvents(SDL_Event * events, int numevents, SDL_eventaction action, |
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308 Uint32 mask) |
0 | 309 { |
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310 int i, used; |
0 | 311 |
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312 /* Don't look after we've quit */ |
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313 if (!SDL_EventQ.active) { |
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314 return (-1); |
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315 } |
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316 /* Lock the event queue */ |
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317 used = 0; |
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318 if (SDL_mutexP(SDL_EventQ.lock) == 0) { |
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319 if (action == SDL_ADDEVENT) { |
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320 for (i = 0; i < numevents; ++i) { |
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321 used += SDL_AddEvent(&events[i]); |
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322 } |
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323 } else { |
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324 SDL_Event tmpevent; |
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325 int spot; |
0 | 326 |
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327 /* If 'events' is NULL, just see if they exist */ |
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328 if (events == NULL) { |
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329 action = SDL_PEEKEVENT; |
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330 numevents = 1; |
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331 events = &tmpevent; |
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332 } |
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333 spot = SDL_EventQ.head; |
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334 while ((used < numevents) && (spot != SDL_EventQ.tail)) { |
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335 if (mask & SDL_EVENTMASK(SDL_EventQ.event[spot].type)) { |
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336 events[used++] = SDL_EventQ.event[spot]; |
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337 if (action == SDL_GETEVENT) { |
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338 spot = SDL_CutEvent(spot); |
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339 } else { |
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340 spot = (spot + 1) % MAXEVENTS; |
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341 } |
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342 } else { |
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343 spot = (spot + 1) % MAXEVENTS; |
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344 } |
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345 } |
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346 } |
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347 SDL_mutexV(SDL_EventQ.lock); |
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348 } else { |
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349 SDL_SetError("Couldn't lock event queue"); |
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350 used = -1; |
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351 } |
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352 return (used); |
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353 } |
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354 |
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355 SDL_bool |
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356 SDL_HasEvent(Uint32 mask) |
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357 { |
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358 return (SDL_PeepEvents(NULL, 0, SDL_PEEKEVENT, mask) > 0); |
0 | 359 } |
360 | |
361 /* Run the system dependent event loops */ | |
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362 void |
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363 SDL_PumpEvents(void) |
0 | 364 { |
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365 if (!SDL_EventThread) { |
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366 SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
0 | 367 |
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368 /* Get events from the video subsystem */ |
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369 if (_this) { |
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370 _this->PumpEvents(_this); |
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371 } |
1361
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372 #if !SDL_JOYSTICK_DISABLED |
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373 /* Check for joystick state change */ |
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374 if (SDL_numjoysticks && (SDL_eventstate & SDL_JOYEVENTMASK)) { |
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375 SDL_JoystickUpdate(); |
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376 } |
0 | 377 #endif |
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378 } |
0 | 379 } |
380 | |
381 /* Public functions */ | |
382 | |
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383 int |
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384 SDL_PollEvent(SDL_Event * event) |
0 | 385 { |
3072 | 386 return SDL_WaitEventTimeout(event, 0); |
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387 } |
0 | 388 |
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389 int |
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390 SDL_WaitEvent(SDL_Event * event) |
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391 { |
3072 | 392 return SDL_WaitEventTimeout(event, -1); |
393 } | |
394 | |
395 int | |
396 SDL_WaitEventTimeout(SDL_Event * event, int timeout) | |
397 { | |
398 Uint32 expiration = 0; | |
399 | |
400 if (timeout > 0) | |
401 expiration = SDL_GetTicks() + timeout; | |
402 | |
403 for (;;) { | |
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404 SDL_PumpEvents(); |
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405 switch (SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS)) { |
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406 case -1: |
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407 return 0; |
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408 case 1: |
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409 return 1; |
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410 case 0: |
3072 | 411 if (timeout == 0) { |
412 /* Polling and no events, just return */ | |
413 return 0; | |
414 } | |
415 if (timeout > 0 && ((int) (SDL_GetTicks() - expiration) >= 0)) { | |
416 /* Timeout expired and no events */ | |
417 return 0; | |
418 } | |
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419 SDL_Delay(10); |
3072 | 420 break; |
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421 } |
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422 } |
0 | 423 } |
424 | |
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425 int |
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426 SDL_PushEvent(SDL_Event * event) |
0 | 427 { |
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428 if (SDL_EventOK && !SDL_EventOK(SDL_EventOKParam, event)) { |
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429 return 0; |
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430 } |
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431 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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432 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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433 } |
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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 return 1; |
0 | 435 } |
436 | |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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437 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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438 SDL_SetEventFilter(SDL_EventFilter filter, void *userdata) |
0 | 439 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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440 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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441 |
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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 /* 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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443 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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444 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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445 while (SDL_PollEvent(&bitbucket) > 0); |
0 | 446 } |
447 | |
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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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448 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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449 SDL_GetEventFilter(SDL_EventFilter * filter, void **userdata) |
0 | 450 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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451 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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452 *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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453 } |
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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 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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455 *userdata = SDL_EventOKParam; |
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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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456 } |
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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 return SDL_EventOK ? SDL_TRUE : SDL_FALSE; |
0 | 458 } |
459 | |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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460 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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461 SDL_FilterEvents(SDL_EventFilter filter, void *userdata) |
0 | 462 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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463 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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464 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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465 |
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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 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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467 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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468 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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469 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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470 } 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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471 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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472 } |
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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 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.
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|
476 } |
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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 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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479 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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480 { |
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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 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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482 Uint8 current_state; |
0 | 483 |
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484 /* 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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485 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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486 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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487 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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488 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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489 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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490 } |
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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 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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492 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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493 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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494 } 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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495 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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|
496 } |
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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.
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498 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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499 return (current_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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|
500 } |
0 | 501 |
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502 /* Just set the state for one event 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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|
503 current_state = SDL_ProcessEvents[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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|
504 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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|
505 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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|
506 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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|
507 /* 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.
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|
508 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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|
509 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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|
510 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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|
511 } 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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|
512 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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|
513 } |
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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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|
514 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.
Sam Lantinga <slouken@libsdl.org>
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|
515 break; |
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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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|
516 default: |
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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
|
517 /* Querying 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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|
518 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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changeset
|
519 } |
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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|
520 return (current_state); |
0 | 521 } |
522 | |
523 /* This is a generic event handler. | |
524 */ | |
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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|
525 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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|
526 SDL_SendSysWMEvent(SDL_SysWMmsg * message) |
0 | 527 { |
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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|
528 int posted; |
0 | 529 |
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
|
530 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
|
531 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
|
532 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
|
533 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
|
534 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
|
535 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
|
536 posted = (SDL_PushEvent(&event) > 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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diff
changeset
|
537 } |
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 /* 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>
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|
539 return (posted); |
0 | 540 } |
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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
|
541 |
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
|
542 /* vi: set ts=4 sw=4 expandtab: */ |