author | Sam Lantinga <slouken@libsdl.org> |
Thu, 06 Jul 2006 07:17:11 +0000 | |
branch | SDL-1.3 |
changeset 1724 | 6c63fc2bd986 |
parent 1722 | 5daa04d862f1 |
child 1731 | 875c3cf1a12c |
permissions | -rw-r--r-- |
0 | 1 |
/* |
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SDL - Simple DirectMedia Layer |
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Copyright (C) 1997-2006 Sam Lantinga |
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This library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Lesser General Public |
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License as published by the Free Software Foundation; either |
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version 2.1 of the License, or (at your option) any later version. |
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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Lesser General Public License for more details. |
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You should have received a copy of the GNU Lesser General Public |
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License along with this library; if not, write to the Free Software |
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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Sam Lantinga |
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slouken@libsdl.org |
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*/ |
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#include "SDL_config.h" |
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/* General event handling code for SDL */ |
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#include "SDL.h" |
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#include "SDL_syswm.h" |
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#include "SDL_sysevents.h" |
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#include "SDL_events_c.h" |
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#include "../timer/SDL_timer_c.h" |
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#if !SDL_JOYSTICK_DISABLED |
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#include "../joystick/SDL_joystick_c.h" |
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#endif |
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/* Public data -- the event filter */ |
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SDL_EventFilter SDL_EventOK = NULL; |
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void *SDL_EventOKParam; |
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Uint8 SDL_ProcessEvents[SDL_NUMEVENTS]; |
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static Uint32 SDL_eventstate = 0; |
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/* Private data -- event queue */ |
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#define MAXEVENTS 128 |
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static struct |
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{ |
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SDL_mutex *lock; |
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int active; |
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int head; |
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int tail; |
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SDL_Event event[MAXEVENTS]; |
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int wmmsg_next; |
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struct SDL_SysWMmsg wmmsg[MAXEVENTS]; |
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} SDL_EventQ; |
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/* Private data -- event locking structure */ |
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static struct |
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{ |
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SDL_mutex *lock; |
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int safe; |
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} SDL_EventLock; |
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/* Thread functions */ |
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static SDL_Thread *SDL_EventThread = NULL; /* Thread handle */ |
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static Uint32 event_thread; /* The event thread id */ |
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void |
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SDL_Lock_EventThread(void) |
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{ |
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if (SDL_EventThread && (SDL_ThreadID() != event_thread)) { |
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/* Grab lock and spin until we're sure event thread stopped */ |
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SDL_mutexP(SDL_EventLock.lock); |
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while (!SDL_EventLock.safe) { |
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SDL_Delay(1); |
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} |
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} |
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} |
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void |
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SDL_Unlock_EventThread(void) |
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{ |
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if (SDL_EventThread && (SDL_ThreadID() != event_thread)) { |
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SDL_mutexV(SDL_EventLock.lock); |
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} |
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} |
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#ifdef __OS2__ |
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/* |
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* We'll increase the priority of GobbleEvents thread, so it will process |
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* events in time for sure! For this, we need the DosSetPriority() API |
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* from the os2.h include file. |
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*/ |
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#define INCL_DOSPROCESS |
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#include <os2.h> |
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#include <time.h> |
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#endif |
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static int SDLCALL |
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SDL_GobbleEvents(void *unused) |
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{ |
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event_thread = SDL_ThreadID(); |
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#ifdef __OS2__ |
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#ifdef USE_DOSSETPRIORITY |
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/* Increase thread priority, so it will process events in time for sure! */ |
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DosSetPriority(PRTYS_THREAD, PRTYC_REGULAR, +16, 0); |
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#endif |
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#endif |
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while (SDL_EventQ.active) { |
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SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
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/* Get events from the video subsystem */ |
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if (_this) { |
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_this->PumpEvents(_this); |
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} |
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/* Queue pending key-repeat events */ |
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SDL_CheckKeyRepeat(); |
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#if !SDL_JOYSTICK_DISABLED |
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/* Check for joystick state change */ |
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if (SDL_numjoysticks && (SDL_eventstate & SDL_JOYEVENTMASK)) { |
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SDL_JoystickUpdate(); |
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} |
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#endif |
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/* Give up the CPU for the rest of our timeslice */ |
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SDL_EventLock.safe = 1; |
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if (SDL_timer_running) { |
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SDL_ThreadedTimerCheck(); |
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} |
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SDL_Delay(1); |
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/* Check for event locking. |
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On the P of the lock mutex, if the lock is held, this thread |
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will wait until the lock is released before continuing. The |
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safe flag will be set, meaning that the other thread can go |
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about it's business. The safe flag is reset before the V, |
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so as soon as the mutex is free, other threads can see that |
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it's not safe to interfere with the event thread. |
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*/ |
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SDL_mutexP(SDL_EventLock.lock); |
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SDL_EventLock.safe = 0; |
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SDL_mutexV(SDL_EventLock.lock); |
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} |
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SDL_SetTimerThreaded(0); |
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event_thread = 0; |
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return (0); |
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} |
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static int |
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SDL_StartEventThread(Uint32 flags) |
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{ |
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/* Reset everything to zero */ |
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SDL_EventThread = NULL; |
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SDL_memset(&SDL_EventLock, 0, sizeof(SDL_EventLock)); |
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/* Create the lock and set ourselves active */ |
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#if !SDL_THREADS_DISABLED |
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SDL_EventQ.lock = SDL_CreateMutex(); |
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159 |
if (SDL_EventQ.lock == NULL) { |
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160 |
#ifdef __MACOS__ /* MacOS classic you can't multithread, so no lock needed */ |
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161 |
; |
0 | 162 |
#else |
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163 |
return (-1); |
0 | 164 |
#endif |
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165 |
} |
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166 |
#endif /* !SDL_THREADS_DISABLED */ |
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167 |
SDL_EventQ.active = 1; |
0 | 168 |
|
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169 |
if ((flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD) { |
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SDL_EventLock.lock = SDL_CreateMutex(); |
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171 |
if (SDL_EventLock.lock == NULL) { |
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172 |
return (-1); |
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173 |
} |
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SDL_EventLock.safe = 0; |
0 | 175 |
|
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176 |
/* The event thread will handle timers too */ |
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SDL_SetTimerThreaded(2); |
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178 |
#if (defined(__WIN32__) && !defined(_WIN32_WCE)) && !defined(HAVE_LIBC) |
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179 |
#undef SDL_CreateThread |
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SDL_EventThread = |
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SDL_CreateThread(SDL_GobbleEvents, NULL, NULL, NULL); |
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182 |
#else |
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183 |
SDL_EventThread = SDL_CreateThread(SDL_GobbleEvents, NULL); |
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184 |
#endif |
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185 |
if (SDL_EventThread == NULL) { |
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186 |
return (-1); |
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187 |
} |
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188 |
} else { |
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189 |
event_thread = 0; |
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190 |
} |
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191 |
return (0); |
0 | 192 |
} |
193 |
||
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194 |
static void |
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195 |
SDL_StopEventThread(void) |
0 | 196 |
{ |
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197 |
SDL_EventQ.active = 0; |
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198 |
if (SDL_EventThread) { |
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SDL_WaitThread(SDL_EventThread, NULL); |
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SDL_EventThread = NULL; |
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201 |
SDL_DestroyMutex(SDL_EventLock.lock); |
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202 |
} |
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#ifndef IPOD |
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SDL_DestroyMutex(SDL_EventQ.lock); |
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#endif |
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} |
207 |
||
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208 |
Uint32 |
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209 |
SDL_EventThreadID(void) |
0 | 210 |
{ |
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211 |
return (event_thread); |
0 | 212 |
} |
213 |
||
214 |
/* Public functions */ |
|
215 |
||
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216 |
void |
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217 |
SDL_StopEventLoop(void) |
0 | 218 |
{ |
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219 |
/* Halt the event thread, if running */ |
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SDL_StopEventThread(); |
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|
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222 |
/* Shutdown event handlers */ |
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223 |
SDL_KeyboardQuit(); |
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224 |
SDL_MouseQuit(); |
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SDL_QuitQuit(); |
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226 |
|
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227 |
/* Clean out EventQ */ |
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228 |
SDL_EventQ.head = 0; |
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229 |
SDL_EventQ.tail = 0; |
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230 |
SDL_EventQ.wmmsg_next = 0; |
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} |
232 |
||
233 |
/* This function (and associated calls) may be called more than once */ |
|
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234 |
int |
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235 |
SDL_StartEventLoop(Uint32 flags) |
0 | 236 |
{ |
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237 |
int retcode; |
0 | 238 |
|
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239 |
/* Clean out the event queue */ |
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240 |
SDL_EventThread = NULL; |
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241 |
SDL_EventQ.lock = NULL; |
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242 |
SDL_StopEventLoop(); |
0 | 243 |
|
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244 |
/* No filter to start with, process most event types */ |
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245 |
SDL_EventOK = NULL; |
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246 |
SDL_memset(SDL_ProcessEvents, SDL_ENABLE, sizeof(SDL_ProcessEvents)); |
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SDL_eventstate = ~0; |
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248 |
/* It's not save to call SDL_EventState() yet */ |
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249 |
SDL_eventstate &= ~(0x00000001 << SDL_SYSWMEVENT); |
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SDL_ProcessEvents[SDL_SYSWMEVENT] = SDL_IGNORE; |
0 | 251 |
|
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252 |
/* Initialize event handlers */ |
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253 |
retcode = 0; |
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254 |
retcode += SDL_KeyboardInit(); |
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retcode += SDL_MouseInit(); |
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256 |
retcode += SDL_QuitInit(); |
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257 |
if (retcode < 0) { |
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258 |
/* We don't expect them to fail, but... */ |
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259 |
return (-1); |
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} |
0 | 261 |
|
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262 |
/* Create the lock and event thread */ |
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263 |
if (SDL_StartEventThread(flags) < 0) { |
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264 |
SDL_StopEventLoop(); |
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265 |
return (-1); |
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266 |
} |
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267 |
return (0); |
0 | 268 |
} |
269 |
||
270 |
||
271 |
/* Add an event to the event queue -- called with the queue locked */ |
|
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static int |
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SDL_AddEvent(SDL_Event * event) |
0 | 274 |
{ |
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275 |
int tail, added; |
0 | 276 |
|
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277 |
tail = (SDL_EventQ.tail + 1) % MAXEVENTS; |
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278 |
if (tail == SDL_EventQ.head) { |
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279 |
/* Overflow, drop event */ |
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280 |
added = 0; |
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281 |
} else { |
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282 |
SDL_EventQ.event[SDL_EventQ.tail] = *event; |
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283 |
if (event->type == SDL_SYSWMEVENT) { |
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284 |
/* Note that it's possible to lose an event */ |
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285 |
int next = SDL_EventQ.wmmsg_next; |
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286 |
SDL_EventQ.wmmsg[next] = *event->syswm.msg; |
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|
287 |
SDL_EventQ.event[SDL_EventQ.tail].syswm.msg = |
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288 |
&SDL_EventQ.wmmsg[next]; |
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|
289 |
SDL_EventQ.wmmsg_next = (next + 1) % MAXEVENTS; |
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|
290 |
} |
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|
291 |
SDL_EventQ.tail = tail; |
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|
292 |
added = 1; |
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|
293 |
} |
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|
294 |
return (added); |
0 | 295 |
} |
296 |
||
297 |
/* Cut an event, and return the next valid spot, or the tail */ |
|
298 |
/* -- called with the queue locked */ |
|
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|
299 |
static int |
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300 |
SDL_CutEvent(int spot) |
0 | 301 |
{ |
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|
302 |
if (spot == SDL_EventQ.head) { |
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|
303 |
SDL_EventQ.head = (SDL_EventQ.head + 1) % MAXEVENTS; |
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|
304 |
return (SDL_EventQ.head); |
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|
305 |
} else if ((spot + 1) % MAXEVENTS == SDL_EventQ.tail) { |
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|
306 |
SDL_EventQ.tail = spot; |
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|
307 |
return (SDL_EventQ.tail); |
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|
308 |
} else |
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|
309 |
/* We cut the middle -- shift everything over */ |
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|
310 |
{ |
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|
311 |
int here, next; |
0 | 312 |
|
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|
313 |
/* This can probably be optimized with SDL_memcpy() -- careful! */ |
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|
314 |
if (--SDL_EventQ.tail < 0) { |
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|
315 |
SDL_EventQ.tail = MAXEVENTS - 1; |
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|
316 |
} |
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|
317 |
for (here = spot; here != SDL_EventQ.tail; here = next) { |
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318 |
next = (here + 1) % MAXEVENTS; |
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|
319 |
SDL_EventQ.event[here] = SDL_EventQ.event[next]; |
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|
320 |
} |
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|
321 |
return (spot); |
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|
322 |
} |
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|
323 |
/* NOTREACHED */ |
0 | 324 |
} |
325 |
||
326 |
/* Lock the event queue, take a peep at it, and unlock it */ |
|
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327 |
int |
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328 |
SDL_PeepEvents(SDL_Event * events, int numevents, SDL_eventaction action, |
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|
329 |
Uint32 mask) |
0 | 330 |
{ |
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|
331 |
int i, used; |
0 | 332 |
|
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|
333 |
/* Don't look after we've quit */ |
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|
334 |
if (!SDL_EventQ.active) { |
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|
335 |
return (-1); |
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|
336 |
} |
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|
337 |
/* Lock the event queue */ |
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|
338 |
used = 0; |
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|
339 |
if (SDL_mutexP(SDL_EventQ.lock) == 0) { |
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|
340 |
if (action == SDL_ADDEVENT) { |
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|
341 |
for (i = 0; i < numevents; ++i) { |
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|
342 |
used += SDL_AddEvent(&events[i]); |
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|
343 |
} |
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|
344 |
} else { |
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|
345 |
SDL_Event tmpevent; |
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|
346 |
int spot; |
0 | 347 |
|
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|
348 |
/* If 'events' is NULL, just see if they exist */ |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
349 |
if (events == NULL) { |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
350 |
action = SDL_PEEKEVENT; |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
351 |
numevents = 1; |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
352 |
events = &tmpevent; |
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|
353 |
} |
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|
354 |
spot = SDL_EventQ.head; |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
355 |
while ((used < numevents) && (spot != SDL_EventQ.tail)) { |
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|
356 |
if (mask & SDL_EVENTMASK(SDL_EventQ.event[spot].type)) { |
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|
357 |
events[used++] = SDL_EventQ.event[spot]; |
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|
358 |
if (action == SDL_GETEVENT) { |
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|
359 |
spot = SDL_CutEvent(spot); |
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|
360 |
} else { |
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|
361 |
spot = (spot + 1) % MAXEVENTS; |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
362 |
} |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
363 |
} else { |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
364 |
spot = (spot + 1) % MAXEVENTS; |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
365 |
} |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
366 |
} |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
367 |
} |
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|
368 |
SDL_mutexV(SDL_EventQ.lock); |
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|
369 |
} else { |
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|
370 |
SDL_SetError("Couldn't lock event queue"); |
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|
371 |
used = -1; |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
372 |
} |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
373 |
return (used); |
0 | 374 |
} |
375 |
||
1724
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Proof of concept done - Win32 GDI implementation mostly complete.
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|
376 |
SDL_bool |
6c63fc2bd986
Proof of concept done - Win32 GDI implementation mostly complete.
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|
377 |
SDL_HasEvent(Uint32 mask) |
6c63fc2bd986
Proof of concept done - Win32 GDI implementation mostly complete.
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|
378 |
{ |
6c63fc2bd986
Proof of concept done - Win32 GDI implementation mostly complete.
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|
379 |
return (SDL_PeepEvents(NULL, 0, SDL_PEEKEVENT, mask) > 0); |
6c63fc2bd986
Proof of concept done - Win32 GDI implementation mostly complete.
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|
380 |
} |
6c63fc2bd986
Proof of concept done - Win32 GDI implementation mostly complete.
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|
381 |
|
0 | 382 |
/* Run the system dependent event loops */ |
1662
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
383 |
void |
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|
384 |
SDL_PumpEvents(void) |
0 | 385 |
{ |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
386 |
if (!SDL_EventThread) { |
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|
387 |
SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
0 | 388 |
|
1662
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
389 |
/* Get events from the video subsystem */ |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
390 |
if (_this) { |
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|
391 |
_this->PumpEvents(_this); |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
392 |
} |
0 | 393 |
|
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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|
394 |
/* Queue pending key-repeat events */ |
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|
395 |
SDL_CheckKeyRepeat(); |
0 | 396 |
|
1361
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New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
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|
397 |
#if !SDL_JOYSTICK_DISABLED |
1662
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
398 |
/* Check for joystick state change */ |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
399 |
if (SDL_numjoysticks && (SDL_eventstate & SDL_JOYEVENTMASK)) { |
1668
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parents:
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diff
changeset
|
400 |
SDL_JoystickUpdate(); |
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
401 |
} |
0 | 402 |
#endif |
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
403 |
} |
0 | 404 |
} |
405 |
||
406 |
/* Public functions */ |
|
407 |
||
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
408 |
int |
1668
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diff
changeset
|
409 |
SDL_PollEvent(SDL_Event * event) |
0 | 410 |
{ |
1668
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diff
changeset
|
411 |
SDL_PumpEvents(); |
0 | 412 |
|
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
413 |
/* We can't return -1, just return 0 (no event) on error */ |
1668
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|
414 |
if (SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS) <= 0) |
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
415 |
return 0; |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
416 |
return 1; |
0 | 417 |
} |
418 |
||
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
419 |
int |
1668
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diff
changeset
|
420 |
SDL_WaitEvent(SDL_Event * event) |
0 | 421 |
{ |
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
422 |
while (1) { |
1668
4da1ee79c9af
more tweaking indent options
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parents:
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diff
changeset
|
423 |
SDL_PumpEvents(); |
4da1ee79c9af
more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents:
1666
diff
changeset
|
424 |
switch (SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS)) { |
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
425 |
case -1: |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
426 |
return 0; |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
427 |
case 1: |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
428 |
return 1; |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
429 |
case 0: |
1668
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more tweaking indent options
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parents:
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diff
changeset
|
430 |
SDL_Delay(10); |
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
431 |
} |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
432 |
} |
0 | 433 |
} |
434 |
||
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
435 |
int |
1668
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diff
changeset
|
436 |
SDL_PushEvent(SDL_Event * event) |
0 | 437 |
{ |
1668
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diff
changeset
|
438 |
if (SDL_PeepEvents(event, 1, SDL_ADDEVENT, 0) <= 0) |
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
439 |
return -1; |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
440 |
return 0; |
0 | 441 |
} |
442 |
||
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
443 |
void |
1722
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
444 |
SDL_SetEventFilter(SDL_EventFilter filter, void *userdata) |
0 | 445 |
{ |
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
446 |
SDL_Event bitbucket; |
0 | 447 |
|
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
448 |
/* Set filter and discard pending events */ |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
449 |
SDL_EventOK = filter; |
1722
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
450 |
SDL_EventOKParam = userdata; |
1668
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diff
changeset
|
451 |
while (SDL_PollEvent(&bitbucket) > 0); |
0 | 452 |
} |
453 |
||
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
454 |
SDL_EventFilter |
1722
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
455 |
SDL_GetEventFilter(void **userdata) |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
456 |
{ |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
457 |
if (userdata) { |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
458 |
*userdata = SDL_EventOKParam; |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
459 |
} |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
460 |
return (SDL_EventOK); |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
461 |
} |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
462 |
|
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
463 |
void |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
464 |
SDL_FilterEvents(SDL_EventFilter filter, void *userdata) |
0 | 465 |
{ |
1722
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
466 |
if (SDL_mutexP(SDL_EventQ.lock) == 0) { |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
467 |
int spot; |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
468 |
|
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
469 |
spot = SDL_EventQ.head; |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
470 |
while (spot != SDL_EventQ.tail) { |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
471 |
if (filter(userdata, &SDL_EventQ.event[spot])) { |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
472 |
spot = (spot + 1) % MAXEVENTS; |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
473 |
} else { |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
474 |
spot = SDL_CutEvent(spot); |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
475 |
} |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
476 |
} |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
477 |
} |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
478 |
SDL_mutexV(SDL_EventQ.lock); |
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
479 |
} |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
480 |
|
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
481 |
Uint8 |
1668
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more tweaking indent options
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parents:
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diff
changeset
|
482 |
SDL_EventState(Uint8 type, int state) |
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
483 |
{ |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
484 |
SDL_Event bitbucket; |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
485 |
Uint8 current_state; |
0 | 486 |
|
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
487 |
/* If SDL_ALLEVENTS was specified... */ |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
488 |
if (type == 0xFF) { |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
489 |
current_state = SDL_IGNORE; |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
490 |
for (type = 0; type < SDL_NUMEVENTS; ++type) { |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
491 |
if (SDL_ProcessEvents[type] != SDL_IGNORE) { |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
492 |
current_state = SDL_ENABLE; |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
493 |
} |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
494 |
SDL_ProcessEvents[type] = state; |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
495 |
if (state == SDL_ENABLE) { |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
496 |
SDL_eventstate |= (0x00000001 << (type)); |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
497 |
} else { |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
498 |
SDL_eventstate &= ~(0x00000001 << (type)); |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
499 |
} |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
500 |
} |
1668
4da1ee79c9af
more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents:
1666
diff
changeset
|
501 |
while (SDL_PollEvent(&bitbucket) > 0); |
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
502 |
return (current_state); |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
503 |
} |
0 | 504 |
|
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
505 |
/* Just set the state for one event type */ |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
506 |
current_state = SDL_ProcessEvents[type]; |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
507 |
switch (state) { |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
508 |
case SDL_IGNORE: |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
509 |
case SDL_ENABLE: |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
510 |
/* Set state and discard pending events */ |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
511 |
SDL_ProcessEvents[type] = state; |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
512 |
if (state == SDL_ENABLE) { |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
513 |
SDL_eventstate |= (0x00000001 << (type)); |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
514 |
} else { |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
515 |
SDL_eventstate &= ~(0x00000001 << (type)); |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
516 |
} |
1668
4da1ee79c9af
more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents:
1666
diff
changeset
|
517 |
while (SDL_PollEvent(&bitbucket) > 0); |
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
518 |
break; |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
519 |
default: |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
520 |
/* Querying state? */ |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
521 |
break; |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
522 |
} |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
523 |
return (current_state); |
0 | 524 |
} |
525 |
||
526 |
/* This is a generic event handler. |
|
527 |
*/ |
|
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
528 |
int |
1724
6c63fc2bd986
Proof of concept done - Win32 GDI implementation mostly complete.
Sam Lantinga <slouken@libsdl.org>
parents:
1722
diff
changeset
|
529 |
SDL_SendSysWMEvent(SDL_SysWMmsg * message) |
0 | 530 |
{ |
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
531 |
int posted; |
0 | 532 |
|
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
533 |
posted = 0; |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
534 |
if (SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE) { |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
535 |
SDL_Event event; |
1668
4da1ee79c9af
more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents:
1666
diff
changeset
|
536 |
SDL_memset(&event, 0, sizeof(event)); |
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
537 |
event.type = SDL_SYSWMEVENT; |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
538 |
event.syswm.msg = message; |
1722
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
539 |
if ((SDL_EventOK == NULL) |
5daa04d862f1
Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents:
1668
diff
changeset
|
540 |
|| (*SDL_EventOK) (SDL_EventOKParam, &event)) { |
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
541 |
posted = 1; |
1668
4da1ee79c9af
more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents:
1666
diff
changeset
|
542 |
SDL_PushEvent(&event); |
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
543 |
} |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
544 |
} |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
545 |
/* Update internal event state */ |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
546 |
return (posted); |
0 | 547 |
} |
1662
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
548 |
|
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
|
549 |
/* vi: set ts=4 sw=4 expandtab: */ |