Mercurial > sdl-ios-xcode
annotate src/events/SDL_events.c @ 2735:204be4fc2726
Final merge of Google Summer of Code 2008 work...
Port SDL 1.3 to the Nintendo DS
by Darren Alton, mentored by Sam Lantinga
author | Sam Lantinga <slouken@libsdl.org> |
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date | Wed, 27 Aug 2008 15:10:03 +0000 |
parents | 047245361002 |
children | 99210400e8b9 |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2006 Sam Lantinga |
0 | 4 |
5 This library is free software; you can redistribute it and/or | |
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6 modify it under the terms of the GNU Lesser General Public |
0 | 7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
0 | 9 |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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13 Lesser General Public License for more details. |
0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
0 | 18 |
19 Sam Lantinga | |
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20 slouken@libsdl.org |
0 | 21 */ |
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22 #include "SDL_config.h" |
0 | 23 |
24 /* General event handling code for SDL */ | |
25 | |
26 #include "SDL.h" | |
27 #include "SDL_syswm.h" | |
28 #include "SDL_sysevents.h" | |
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29 #include "SDL_events_c.h" |
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30 #include "../timer/SDL_timer_c.h" |
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31 #if !SDL_JOYSTICK_DISABLED |
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32 #include "../joystick/SDL_joystick_c.h" |
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33 #endif |
0 | 34 |
35 /* Public data -- the event filter */ | |
36 SDL_EventFilter SDL_EventOK = NULL; | |
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37 void *SDL_EventOKParam; |
0 | 38 Uint8 SDL_ProcessEvents[SDL_NUMEVENTS]; |
39 static Uint32 SDL_eventstate = 0; | |
40 | |
41 /* Private data -- event queue */ | |
42 #define MAXEVENTS 128 | |
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43 static struct |
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44 { |
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45 SDL_mutex *lock; |
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46 int active; |
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47 int head; |
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48 int tail; |
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49 SDL_Event event[MAXEVENTS]; |
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50 int wmmsg_next; |
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51 struct SDL_SysWMmsg wmmsg[MAXEVENTS]; |
0 | 52 } SDL_EventQ; |
53 | |
54 /* Private data -- event locking structure */ | |
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55 static struct |
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56 { |
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57 SDL_mutex *lock; |
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58 int safe; |
0 | 59 } SDL_EventLock; |
60 | |
61 /* Thread functions */ | |
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62 static SDL_Thread *SDL_EventThread = NULL; /* Thread handle */ |
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63 static Uint32 event_thread; /* The event thread id */ |
0 | 64 |
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65 void |
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66 SDL_Lock_EventThread(void) |
0 | 67 { |
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68 if (SDL_EventThread && (SDL_ThreadID() != event_thread)) { |
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69 /* Grab lock and spin until we're sure event thread stopped */ |
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70 SDL_mutexP(SDL_EventLock.lock); |
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71 while (!SDL_EventLock.safe) { |
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72 SDL_Delay(1); |
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73 } |
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74 } |
0 | 75 } |
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76 |
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77 void |
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78 SDL_Unlock_EventThread(void) |
0 | 79 { |
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80 if (SDL_EventThread && (SDL_ThreadID() != event_thread)) { |
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81 SDL_mutexV(SDL_EventLock.lock); |
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82 } |
0 | 83 } |
84 | |
1190 | 85 #ifdef __OS2__ |
86 /* | |
87 * We'll increase the priority of GobbleEvents thread, so it will process | |
88 * events in time for sure! For this, we need the DosSetPriority() API | |
89 * from the os2.h include file. | |
90 */ | |
91 #define INCL_DOSPROCESS | |
92 #include <os2.h> | |
93 #include <time.h> | |
94 #endif | |
95 | |
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96 static int SDLCALL |
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97 SDL_GobbleEvents(void *unused) |
0 | 98 { |
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99 event_thread = SDL_ThreadID(); |
1190 | 100 |
101 #ifdef __OS2__ | |
102 #ifdef USE_DOSSETPRIORITY | |
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103 /* Increase thread priority, so it will process events in time for sure! */ |
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104 DosSetPriority(PRTYS_THREAD, PRTYC_REGULAR, +16, 0); |
1190 | 105 #endif |
106 #endif | |
107 | |
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108 while (SDL_EventQ.active) { |
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109 SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
0 | 110 |
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111 /* Get events from the video subsystem */ |
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112 if (_this) { |
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113 _this->PumpEvents(_this); |
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114 } |
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115 #if !SDL_JOYSTICK_DISABLED |
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116 /* Check for joystick state change */ |
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117 if (SDL_numjoysticks && (SDL_eventstate & SDL_JOYEVENTMASK)) { |
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118 SDL_JoystickUpdate(); |
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119 } |
0 | 120 #endif |
121 | |
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122 /* Give up the CPU for the rest of our timeslice */ |
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123 SDL_EventLock.safe = 1; |
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124 if (SDL_timer_running) { |
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125 SDL_ThreadedTimerCheck(); |
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126 } |
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127 SDL_Delay(1); |
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129 /* Check for event locking. |
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130 On the P of the lock mutex, if the lock is held, this thread |
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131 will wait until the lock is released before continuing. The |
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132 safe flag will be set, meaning that the other thread can go |
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133 about it's business. The safe flag is reset before the V, |
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134 so as soon as the mutex is free, other threads can see that |
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135 it's not safe to interfere with the event thread. |
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136 */ |
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137 SDL_mutexP(SDL_EventLock.lock); |
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138 SDL_EventLock.safe = 0; |
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139 SDL_mutexV(SDL_EventLock.lock); |
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140 } |
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141 SDL_SetTimerThreaded(0); |
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142 event_thread = 0; |
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143 return (0); |
0 | 144 } |
145 | |
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146 static int |
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147 SDL_StartEventThread(Uint32 flags) |
0 | 148 { |
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149 /* Reset everything to zero */ |
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150 SDL_EventThread = NULL; |
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151 SDL_memset(&SDL_EventLock, 0, sizeof(SDL_EventLock)); |
0 | 152 |
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153 /* Create the lock and set ourselves active */ |
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154 #if !SDL_THREADS_DISABLED |
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155 SDL_EventQ.lock = SDL_CreateMutex(); |
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156 if (SDL_EventQ.lock == NULL) { |
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157 return (-1); |
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158 } |
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159 #endif /* !SDL_THREADS_DISABLED */ |
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160 SDL_EventQ.active = 1; |
0 | 161 |
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162 if ((flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD) { |
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163 SDL_EventLock.lock = SDL_CreateMutex(); |
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164 if (SDL_EventLock.lock == NULL) { |
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165 return (-1); |
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166 } |
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167 SDL_EventLock.safe = 0; |
0 | 168 |
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169 /* The event thread will handle timers too */ |
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170 SDL_SetTimerThreaded(2); |
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171 #if (defined(__WIN32__) && !defined(_WIN32_WCE)) && !defined(HAVE_LIBC) |
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172 #undef SDL_CreateThread |
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173 SDL_EventThread = |
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174 SDL_CreateThread(SDL_GobbleEvents, NULL, NULL, NULL); |
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175 #else |
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176 SDL_EventThread = SDL_CreateThread(SDL_GobbleEvents, NULL); |
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177 #endif |
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178 if (SDL_EventThread == NULL) { |
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179 return (-1); |
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180 } |
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181 } else { |
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182 event_thread = 0; |
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183 } |
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184 return (0); |
0 | 185 } |
186 | |
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187 static void |
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188 SDL_StopEventThread(void) |
0 | 189 { |
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190 SDL_EventQ.active = 0; |
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191 if (SDL_EventThread) { |
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192 SDL_WaitThread(SDL_EventThread, NULL); |
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193 SDL_EventThread = NULL; |
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194 SDL_DestroyMutex(SDL_EventLock.lock); |
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195 } |
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196 #ifndef IPOD |
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197 SDL_DestroyMutex(SDL_EventQ.lock); |
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198 #endif |
0 | 199 } |
200 | |
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201 Uint32 |
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202 SDL_EventThreadID(void) |
0 | 203 { |
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204 return (event_thread); |
0 | 205 } |
206 | |
207 /* Public functions */ | |
208 | |
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209 void |
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210 SDL_StopEventLoop(void) |
0 | 211 { |
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212 /* Halt the event thread, if running */ |
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213 SDL_StopEventThread(); |
0 | 214 |
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215 /* Shutdown event handlers */ |
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216 SDL_KeyboardQuit(); |
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217 SDL_MouseQuit(); |
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218 SDL_QuitQuit(); |
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219 |
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220 /* Clean out EventQ */ |
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221 SDL_EventQ.head = 0; |
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222 SDL_EventQ.tail = 0; |
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223 SDL_EventQ.wmmsg_next = 0; |
0 | 224 } |
225 | |
226 /* This function (and associated calls) may be called more than once */ | |
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227 int |
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228 SDL_StartEventLoop(Uint32 flags) |
0 | 229 { |
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230 int retcode; |
0 | 231 |
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232 /* Clean out the event queue */ |
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233 SDL_EventThread = NULL; |
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234 SDL_EventQ.lock = NULL; |
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235 SDL_StopEventLoop(); |
0 | 236 |
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237 /* No filter to start with, process most event types */ |
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238 SDL_EventOK = NULL; |
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239 SDL_memset(SDL_ProcessEvents, SDL_ENABLE, sizeof(SDL_ProcessEvents)); |
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240 SDL_eventstate = ~0; |
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241 /* It's not save to call SDL_EventState() yet */ |
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242 SDL_eventstate &= ~(0x00000001 << SDL_SYSWMEVENT); |
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243 SDL_ProcessEvents[SDL_SYSWMEVENT] = SDL_IGNORE; |
0 | 244 |
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245 /* Initialize event handlers */ |
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246 retcode = 0; |
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247 retcode += SDL_KeyboardInit(); |
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248 retcode += SDL_MouseInit(); |
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249 retcode += SDL_QuitInit(); |
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250 if (retcode < 0) { |
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251 /* We don't expect them to fail, but... */ |
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252 return (-1); |
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253 } |
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254 |
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255 /* Create the lock and event thread */ |
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256 if (SDL_StartEventThread(flags) < 0) { |
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257 SDL_StopEventLoop(); |
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258 return (-1); |
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259 } |
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260 return (0); |
0 | 261 } |
262 | |
263 | |
264 /* Add an event to the event queue -- called with the queue locked */ | |
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265 static int |
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266 SDL_AddEvent(SDL_Event * event) |
0 | 267 { |
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268 int tail, added; |
0 | 269 |
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270 tail = (SDL_EventQ.tail + 1) % MAXEVENTS; |
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271 if (tail == SDL_EventQ.head) { |
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272 /* Overflow, drop event */ |
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273 added = 0; |
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274 } else { |
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275 SDL_EventQ.event[SDL_EventQ.tail] = *event; |
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276 if (event->type == SDL_SYSWMEVENT) { |
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277 /* Note that it's possible to lose an event */ |
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278 int next = SDL_EventQ.wmmsg_next; |
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279 SDL_EventQ.wmmsg[next] = *event->syswm.msg; |
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280 SDL_EventQ.event[SDL_EventQ.tail].syswm.msg = |
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281 &SDL_EventQ.wmmsg[next]; |
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282 SDL_EventQ.wmmsg_next = (next + 1) % MAXEVENTS; |
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283 } |
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284 SDL_EventQ.tail = tail; |
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285 added = 1; |
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286 } |
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287 return (added); |
0 | 288 } |
289 | |
290 /* Cut an event, and return the next valid spot, or the tail */ | |
291 /* -- called with the queue locked */ | |
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292 static int |
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293 SDL_CutEvent(int spot) |
0 | 294 { |
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295 if (spot == SDL_EventQ.head) { |
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296 SDL_EventQ.head = (SDL_EventQ.head + 1) % MAXEVENTS; |
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297 return (SDL_EventQ.head); |
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298 } else if ((spot + 1) % MAXEVENTS == SDL_EventQ.tail) { |
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299 SDL_EventQ.tail = spot; |
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300 return (SDL_EventQ.tail); |
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301 } else |
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302 /* We cut the middle -- shift everything over */ |
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303 { |
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304 int here, next; |
0 | 305 |
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306 /* This can probably be optimized with SDL_memcpy() -- careful! */ |
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307 if (--SDL_EventQ.tail < 0) { |
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308 SDL_EventQ.tail = MAXEVENTS - 1; |
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309 } |
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310 for (here = spot; here != SDL_EventQ.tail; here = next) { |
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311 next = (here + 1) % MAXEVENTS; |
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312 SDL_EventQ.event[here] = SDL_EventQ.event[next]; |
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313 } |
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314 return (spot); |
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315 } |
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316 /* NOTREACHED */ |
0 | 317 } |
318 | |
319 /* Lock the event queue, take a peep at it, and unlock it */ | |
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320 int |
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321 SDL_PeepEvents(SDL_Event * events, int numevents, SDL_eventaction action, |
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322 Uint32 mask) |
0 | 323 { |
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324 int i, used; |
0 | 325 |
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326 /* Don't look after we've quit */ |
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327 if (!SDL_EventQ.active) { |
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328 return (-1); |
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329 } |
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330 /* Lock the event queue */ |
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331 used = 0; |
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332 if (SDL_mutexP(SDL_EventQ.lock) == 0) { |
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333 if (action == SDL_ADDEVENT) { |
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334 for (i = 0; i < numevents; ++i) { |
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335 used += SDL_AddEvent(&events[i]); |
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336 } |
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337 } else { |
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338 SDL_Event tmpevent; |
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339 int spot; |
0 | 340 |
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341 /* If 'events' is NULL, just see if they exist */ |
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342 if (events == NULL) { |
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343 action = SDL_PEEKEVENT; |
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344 numevents = 1; |
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345 events = &tmpevent; |
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346 } |
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347 spot = SDL_EventQ.head; |
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348 while ((used < numevents) && (spot != SDL_EventQ.tail)) { |
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349 if (mask & SDL_EVENTMASK(SDL_EventQ.event[spot].type)) { |
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350 events[used++] = SDL_EventQ.event[spot]; |
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351 if (action == SDL_GETEVENT) { |
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352 spot = SDL_CutEvent(spot); |
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353 } else { |
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354 spot = (spot + 1) % MAXEVENTS; |
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355 } |
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356 } else { |
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357 spot = (spot + 1) % MAXEVENTS; |
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358 } |
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359 } |
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360 } |
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361 SDL_mutexV(SDL_EventQ.lock); |
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362 } else { |
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363 SDL_SetError("Couldn't lock event queue"); |
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364 used = -1; |
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365 } |
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366 return (used); |
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367 } |
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368 |
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369 SDL_bool |
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370 SDL_HasEvent(Uint32 mask) |
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371 { |
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372 return (SDL_PeepEvents(NULL, 0, SDL_PEEKEVENT, mask) > 0); |
0 | 373 } |
374 | |
375 /* Run the system dependent event loops */ | |
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376 void |
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377 SDL_PumpEvents(void) |
0 | 378 { |
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379 if (!SDL_EventThread) { |
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380 SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
0 | 381 |
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382 /* Get events from the video subsystem */ |
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383 if (_this) { |
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384 _this->PumpEvents(_this); |
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385 } |
1361
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386 #if !SDL_JOYSTICK_DISABLED |
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387 /* Check for joystick state change */ |
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388 if (SDL_numjoysticks && (SDL_eventstate & SDL_JOYEVENTMASK)) { |
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389 SDL_JoystickUpdate(); |
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390 } |
0 | 391 #endif |
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392 } |
0 | 393 } |
394 | |
395 /* Public functions */ | |
396 | |
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397 int |
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398 SDL_PollEvent(SDL_Event * event) |
0 | 399 { |
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400 SDL_PumpEvents(); |
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401 |
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402 /* We can't return -1, just return 0 (no event) on error */ |
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403 if (SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS) <= 0) |
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404 return 0; |
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405 return 1; |
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406 } |
0 | 407 |
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408 int |
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409 SDL_WaitEvent(SDL_Event * event) |
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410 { |
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411 while (1) { |
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412 SDL_PumpEvents(); |
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413 switch (SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS)) { |
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414 case -1: |
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415 return 0; |
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416 case 1: |
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417 return 1; |
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418 case 0: |
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419 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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420 } |
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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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|
421 } |
0 | 422 } |
423 | |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
424 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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|
425 SDL_PushEvent(SDL_Event * event) |
0 | 426 { |
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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 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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428 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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|
429 } |
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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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430 if (SDL_PeepEvents(event, 1, SDL_ADDEVENT, 0) <= 0) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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431 return -1; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
432 } |
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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; |
0 | 434 } |
435 | |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
436 void |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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437 SDL_SetEventFilter(SDL_EventFilter filter, void *userdata) |
0 | 438 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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439 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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440 |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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441 /* 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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442 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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443 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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444 while (SDL_PollEvent(&bitbucket) > 0); |
0 | 445 } |
446 | |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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447 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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448 SDL_GetEventFilter(SDL_EventFilter * filter, void **userdata) |
0 | 449 { |
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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 if (filter) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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451 *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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|
452 } |
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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 if (userdata) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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454 *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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455 } |
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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 return SDL_EventOK ? SDL_TRUE : SDL_FALSE; |
0 | 457 } |
458 | |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
459 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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460 SDL_FilterEvents(SDL_EventFilter filter, void *userdata) |
0 | 461 { |
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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 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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463 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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464 |
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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 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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466 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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467 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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468 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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469 } 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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470 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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|
471 } |
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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 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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|
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 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
477 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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|
478 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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479 { |
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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_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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|
481 Uint8 current_state; |
0 | 482 |
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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 /* 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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484 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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|
485 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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|
486 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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487 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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|
488 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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|
489 } |
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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 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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|
491 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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|
492 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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|
493 } 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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|
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 } |
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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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|
496 } |
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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|
497 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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|
498 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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|
499 } |
0 | 500 |
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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|
501 /* 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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|
502 current_state = SDL_ProcessEvents[type]; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
503 switch (state) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
504 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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|
505 case SDL_ENABLE: |
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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
|
506 /* Set state and discard pending events */ |
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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|
507 SDL_ProcessEvents[type] = state; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
508 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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|
509 SDL_eventstate |= (0x00000001 << (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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diff
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|
510 } else { |
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
|
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
changeset
|
512 } |
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
|
513 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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|
514 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
|
515 default: |
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 /* 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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changeset
|
517 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
|
518 } |
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
|
519 return (current_state); |
0 | 520 } |
521 | |
522 /* This is a generic event handler. | |
523 */ | |
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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|
524 int |
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
|
525 SDL_SendSysWMEvent(SDL_SysWMmsg * message) |
0 | 526 { |
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>
parents:
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diff
changeset
|
527 int posted; |
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 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
|
530 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
|
531 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
|
532 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>
parents:
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diff
changeset
|
533 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
|
534 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>
parents:
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diff
changeset
|
535 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>
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diff
changeset
|
536 } |
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
|
537 /* 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
|
538 return (posted); |
0 | 539 } |
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
|
540 |
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
|
541 /* vi: set ts=4 sw=4 expandtab: */ |