slouken@0
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/*
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SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2009 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_events.h"
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#include "SDL_syswm.h"
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#include "SDL_thread.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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#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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if (SDL_EventQ.lock == NULL) {
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return (-1);
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}
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#endif /* !SDL_THREADS_DISABLED */
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SDL_EventQ.active = 1;
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if ((flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD) {
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SDL_EventLock.lock = SDL_CreateMutex();
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if (SDL_EventLock.lock == NULL) {
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return (-1);
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}
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SDL_EventLock.safe = 0;
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/* The event thread will handle timers too */
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SDL_SetTimerThreaded(2);
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#if (defined(__WIN32__) && !defined(_WIN32_WCE)) && !defined(HAVE_LIBC)
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#undef SDL_CreateThread
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SDL_EventThread =
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SDL_CreateThread(SDL_GobbleEvents, NULL, NULL, NULL);
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#else
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SDL_EventThread = SDL_CreateThread(SDL_GobbleEvents, NULL);
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#endif
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if (SDL_EventThread == NULL) {
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return (-1);
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}
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} else {
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event_thread = 0;
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}
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return (0);
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}
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static void
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SDL_StopEventThread(void)
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slouken@0
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{
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slouken@1895
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SDL_EventQ.active = 0;
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slouken@1895
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if (SDL_EventThread) {
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slouken@1895
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SDL_WaitThread(SDL_EventThread, NULL);
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slouken@1895
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SDL_EventThread = NULL;
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slouken@1895
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SDL_DestroyMutex(SDL_EventLock.lock);
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slouken@1895
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}
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icculus@1140
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#ifndef IPOD
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SDL_DestroyMutex(SDL_EventQ.lock);
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#endif
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slouken@0
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}
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slouken@0
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Uint32
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SDL_EventThreadID(void)
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{
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slouken@1895
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return (event_thread);
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}
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slouken@0
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slouken@0
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/* Public functions */
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slouken@0
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210 |
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slouken@1895
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void
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SDL_StopEventLoop(void)
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slouken@0
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{
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slouken@1895
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/* Halt the event thread, if running */
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slouken@1895
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SDL_StopEventThread();
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slouken@0
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slouken@1895
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217 |
/* Shutdown event handlers */
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slouken@1895
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SDL_KeyboardQuit();
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slouken@1895
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SDL_MouseQuit();
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slouken@1895
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SDL_QuitQuit();
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slouken@1123
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slouken@1895
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/* Clean out EventQ */
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slouken@1895
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SDL_EventQ.head = 0;
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slouken@1895
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SDL_EventQ.tail = 0;
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slouken@1895
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225 |
SDL_EventQ.wmmsg_next = 0;
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slouken@0
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226 |
}
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slouken@0
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227 |
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slouken@0
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228 |
/* This function (and associated calls) may be called more than once */
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slouken@1895
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229 |
int
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slouken@1895
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230 |
SDL_StartEventLoop(Uint32 flags)
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slouken@0
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231 |
{
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slouken@1895
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232 |
int retcode;
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slouken@0
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233 |
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slouken@1895
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234 |
/* Clean out the event queue */
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slouken@1895
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235 |
SDL_EventThread = NULL;
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slouken@1895
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236 |
SDL_EventQ.lock = NULL;
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slouken@1895
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237 |
SDL_StopEventLoop();
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slouken@0
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238 |
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slouken@1895
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239 |
/* No filter to start with, process most event types */
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slouken@1895
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240 |
SDL_EventOK = NULL;
|
slouken@1895
|
241 |
SDL_memset(SDL_ProcessEvents, SDL_ENABLE, sizeof(SDL_ProcessEvents));
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slouken@1895
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242 |
SDL_eventstate = ~0;
|
slouken@1895
|
243 |
/* It's not save to call SDL_EventState() yet */
|
slouken@1895
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244 |
SDL_eventstate &= ~(0x00000001 << SDL_SYSWMEVENT);
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slouken@1895
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245 |
SDL_ProcessEvents[SDL_SYSWMEVENT] = SDL_IGNORE;
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slouken@0
|
246 |
|
slouken@1895
|
247 |
/* Initialize event handlers */
|
slouken@1895
|
248 |
retcode = 0;
|
slouken@1895
|
249 |
retcode += SDL_KeyboardInit();
|
slouken@1895
|
250 |
retcode += SDL_MouseInit();
|
slouken@1895
|
251 |
retcode += SDL_QuitInit();
|
slouken@1895
|
252 |
if (retcode < 0) {
|
slouken@1895
|
253 |
/* We don't expect them to fail, but... */
|
slouken@1895
|
254 |
return (-1);
|
slouken@1895
|
255 |
}
|
slouken@0
|
256 |
|
slouken@1895
|
257 |
/* Create the lock and event thread */
|
slouken@1895
|
258 |
if (SDL_StartEventThread(flags) < 0) {
|
slouken@1895
|
259 |
SDL_StopEventLoop();
|
slouken@1895
|
260 |
return (-1);
|
slouken@1895
|
261 |
}
|
slouken@1895
|
262 |
return (0);
|
slouken@0
|
263 |
}
|
slouken@0
|
264 |
|
slouken@0
|
265 |
|
slouken@0
|
266 |
/* Add an event to the event queue -- called with the queue locked */
|
slouken@1895
|
267 |
static int
|
slouken@1895
|
268 |
SDL_AddEvent(SDL_Event * event)
|
slouken@0
|
269 |
{
|
slouken@1895
|
270 |
int tail, added;
|
slouken@0
|
271 |
|
slouken@1895
|
272 |
tail = (SDL_EventQ.tail + 1) % MAXEVENTS;
|
slouken@1895
|
273 |
if (tail == SDL_EventQ.head) {
|
slouken@1895
|
274 |
/* Overflow, drop event */
|
slouken@1895
|
275 |
added = 0;
|
slouken@1895
|
276 |
} else {
|
slouken@1895
|
277 |
SDL_EventQ.event[SDL_EventQ.tail] = *event;
|
slouken@1895
|
278 |
if (event->type == SDL_SYSWMEVENT) {
|
slouken@1895
|
279 |
/* Note that it's possible to lose an event */
|
slouken@1895
|
280 |
int next = SDL_EventQ.wmmsg_next;
|
slouken@1895
|
281 |
SDL_EventQ.wmmsg[next] = *event->syswm.msg;
|
slouken@1895
|
282 |
SDL_EventQ.event[SDL_EventQ.tail].syswm.msg =
|
slouken@1895
|
283 |
&SDL_EventQ.wmmsg[next];
|
slouken@1895
|
284 |
SDL_EventQ.wmmsg_next = (next + 1) % MAXEVENTS;
|
slouken@1895
|
285 |
}
|
slouken@1895
|
286 |
SDL_EventQ.tail = tail;
|
slouken@1895
|
287 |
added = 1;
|
slouken@1895
|
288 |
}
|
slouken@1895
|
289 |
return (added);
|
slouken@0
|
290 |
}
|
slouken@0
|
291 |
|
slouken@0
|
292 |
/* Cut an event, and return the next valid spot, or the tail */
|
slouken@0
|
293 |
/* -- called with the queue locked */
|
slouken@1895
|
294 |
static int
|
slouken@1895
|
295 |
SDL_CutEvent(int spot)
|
slouken@0
|
296 |
{
|
slouken@1895
|
297 |
if (spot == SDL_EventQ.head) {
|
slouken@1895
|
298 |
SDL_EventQ.head = (SDL_EventQ.head + 1) % MAXEVENTS;
|
slouken@1895
|
299 |
return (SDL_EventQ.head);
|
slouken@1895
|
300 |
} else if ((spot + 1) % MAXEVENTS == SDL_EventQ.tail) {
|
slouken@1895
|
301 |
SDL_EventQ.tail = spot;
|
slouken@1895
|
302 |
return (SDL_EventQ.tail);
|
slouken@1895
|
303 |
} else
|
slouken@1895
|
304 |
/* We cut the middle -- shift everything over */
|
slouken@1895
|
305 |
{
|
slouken@1895
|
306 |
int here, next;
|
slouken@0
|
307 |
|
slouken@1895
|
308 |
/* This can probably be optimized with SDL_memcpy() -- careful! */
|
slouken@1895
|
309 |
if (--SDL_EventQ.tail < 0) {
|
slouken@1895
|
310 |
SDL_EventQ.tail = MAXEVENTS - 1;
|
slouken@1895
|
311 |
}
|
slouken@1895
|
312 |
for (here = spot; here != SDL_EventQ.tail; here = next) {
|
slouken@1895
|
313 |
next = (here + 1) % MAXEVENTS;
|
slouken@1895
|
314 |
SDL_EventQ.event[here] = SDL_EventQ.event[next];
|
slouken@1895
|
315 |
}
|
slouken@1895
|
316 |
return (spot);
|
slouken@1895
|
317 |
}
|
slouken@1895
|
318 |
/* NOTREACHED */
|
slouken@0
|
319 |
}
|
slouken@0
|
320 |
|
slouken@0
|
321 |
/* Lock the event queue, take a peep at it, and unlock it */
|
slouken@1895
|
322 |
int
|
slouken@1895
|
323 |
SDL_PeepEvents(SDL_Event * events, int numevents, SDL_eventaction action,
|
slouken@1895
|
324 |
Uint32 mask)
|
slouken@0
|
325 |
{
|
slouken@1895
|
326 |
int i, used;
|
slouken@0
|
327 |
|
slouken@1895
|
328 |
/* Don't look after we've quit */
|
slouken@1895
|
329 |
if (!SDL_EventQ.active) {
|
slouken@1895
|
330 |
return (-1);
|
slouken@1895
|
331 |
}
|
slouken@1895
|
332 |
/* Lock the event queue */
|
slouken@1895
|
333 |
used = 0;
|
slouken@1895
|
334 |
if (SDL_mutexP(SDL_EventQ.lock) == 0) {
|
slouken@1895
|
335 |
if (action == SDL_ADDEVENT) {
|
slouken@1895
|
336 |
for (i = 0; i < numevents; ++i) {
|
slouken@1895
|
337 |
used += SDL_AddEvent(&events[i]);
|
slouken@1895
|
338 |
}
|
slouken@1895
|
339 |
} else {
|
slouken@1895
|
340 |
SDL_Event tmpevent;
|
slouken@1895
|
341 |
int spot;
|
slouken@0
|
342 |
|
slouken@1895
|
343 |
/* If 'events' is NULL, just see if they exist */
|
slouken@1895
|
344 |
if (events == NULL) {
|
slouken@1895
|
345 |
action = SDL_PEEKEVENT;
|
slouken@1895
|
346 |
numevents = 1;
|
slouken@1895
|
347 |
events = &tmpevent;
|
slouken@1895
|
348 |
}
|
slouken@1895
|
349 |
spot = SDL_EventQ.head;
|
slouken@1895
|
350 |
while ((used < numevents) && (spot != SDL_EventQ.tail)) {
|
slouken@1895
|
351 |
if (mask & SDL_EVENTMASK(SDL_EventQ.event[spot].type)) {
|
slouken@1895
|
352 |
events[used++] = SDL_EventQ.event[spot];
|
slouken@1895
|
353 |
if (action == SDL_GETEVENT) {
|
slouken@1895
|
354 |
spot = SDL_CutEvent(spot);
|
slouken@1895
|
355 |
} else {
|
slouken@1895
|
356 |
spot = (spot + 1) % MAXEVENTS;
|
slouken@1895
|
357 |
}
|
slouken@1895
|
358 |
} else {
|
slouken@1895
|
359 |
spot = (spot + 1) % MAXEVENTS;
|
slouken@1895
|
360 |
}
|
slouken@1895
|
361 |
}
|
slouken@1895
|
362 |
}
|
slouken@1895
|
363 |
SDL_mutexV(SDL_EventQ.lock);
|
slouken@1895
|
364 |
} else {
|
slouken@1895
|
365 |
SDL_SetError("Couldn't lock event queue");
|
slouken@1895
|
366 |
used = -1;
|
slouken@1895
|
367 |
}
|
slouken@1895
|
368 |
return (used);
|
slouken@1895
|
369 |
}
|
slouken@1895
|
370 |
|
slouken@1895
|
371 |
SDL_bool
|
slouken@1895
|
372 |
SDL_HasEvent(Uint32 mask)
|
slouken@1895
|
373 |
{
|
slouken@1895
|
374 |
return (SDL_PeepEvents(NULL, 0, SDL_PEEKEVENT, mask) > 0);
|
slouken@0
|
375 |
}
|
slouken@0
|
376 |
|
slouken@0
|
377 |
/* Run the system dependent event loops */
|
slouken@1895
|
378 |
void
|
slouken@1895
|
379 |
SDL_PumpEvents(void)
|
slouken@0
|
380 |
{
|
slouken@1895
|
381 |
if (!SDL_EventThread) {
|
slouken@1895
|
382 |
SDL_VideoDevice *_this = SDL_GetVideoDevice();
|
slouken@0
|
383 |
|
slouken@1895
|
384 |
/* Get events from the video subsystem */
|
slouken@1895
|
385 |
if (_this) {
|
slouken@1895
|
386 |
_this->PumpEvents(_this);
|
slouken@1895
|
387 |
}
|
slouken@1361
|
388 |
#if !SDL_JOYSTICK_DISABLED
|
slouken@1895
|
389 |
/* Check for joystick state change */
|
slouken@1895
|
390 |
if (SDL_numjoysticks && (SDL_eventstate & SDL_JOYEVENTMASK)) {
|
slouken@1895
|
391 |
SDL_JoystickUpdate();
|
slouken@1895
|
392 |
}
|
slouken@0
|
393 |
#endif
|
slouken@1895
|
394 |
}
|
slouken@0
|
395 |
}
|
slouken@0
|
396 |
|
slouken@0
|
397 |
/* Public functions */
|
slouken@0
|
398 |
|
slouken@1895
|
399 |
int
|
slouken@1895
|
400 |
SDL_PollEvent(SDL_Event * event)
|
slouken@0
|
401 |
{
|
slouken@3072
|
402 |
return SDL_WaitEventTimeout(event, 0);
|
slouken@0
|
403 |
}
|
slouken@0
|
404 |
|
slouken@1895
|
405 |
int
|
slouken@1895
|
406 |
SDL_WaitEvent(SDL_Event * event)
|
slouken@0
|
407 |
{
|
slouken@3072
|
408 |
return SDL_WaitEventTimeout(event, -1);
|
slouken@3072
|
409 |
}
|
slouken@3072
|
410 |
|
slouken@3072
|
411 |
int
|
slouken@3072
|
412 |
SDL_WaitEventTimeout(SDL_Event * event, int timeout)
|
slouken@3072
|
413 |
{
|
slouken@3072
|
414 |
Uint32 expiration = 0;
|
slouken@3072
|
415 |
|
slouken@3072
|
416 |
if (timeout > 0)
|
slouken@3072
|
417 |
expiration = SDL_GetTicks() + timeout;
|
slouken@3072
|
418 |
|
slouken@3072
|
419 |
for (;;) {
|
slouken@1895
|
420 |
SDL_PumpEvents();
|
slouken@1895
|
421 |
switch (SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS)) {
|
slouken@1895
|
422 |
case -1:
|
slouken@1895
|
423 |
return 0;
|
slouken@1895
|
424 |
case 1:
|
slouken@1895
|
425 |
return 1;
|
slouken@1895
|
426 |
case 0:
|
slouken@3072
|
427 |
if (timeout == 0) {
|
slouken@3072
|
428 |
/* Polling and no events, just return */
|
slouken@3072
|
429 |
return 0;
|
slouken@3072
|
430 |
}
|
slouken@3072
|
431 |
if (timeout > 0 && ((int) (SDL_GetTicks() - expiration) >= 0)) {
|
slouken@3072
|
432 |
/* Timeout expired and no events */
|
slouken@3072
|
433 |
return 0;
|
slouken@3072
|
434 |
}
|
slouken@1895
|
435 |
SDL_Delay(10);
|
slouken@3072
|
436 |
break;
|
slouken@1895
|
437 |
}
|
slouken@1895
|
438 |
}
|
slouken@0
|
439 |
}
|
slouken@0
|
440 |
|
slouken@1895
|
441 |
int
|
slouken@1895
|
442 |
SDL_PushEvent(SDL_Event * event)
|
slouken@0
|
443 |
{
|
slouken@1895
|
444 |
if (SDL_EventOK && !SDL_EventOK(SDL_EventOKParam, event)) {
|
slouken@1895
|
445 |
return 0;
|
slouken@1895
|
446 |
}
|
slouken@1895
|
447 |
if (SDL_PeepEvents(event, 1, SDL_ADDEVENT, 0) <= 0) {
|
slouken@1895
|
448 |
return -1;
|
slouken@1895
|
449 |
}
|
slouken@1895
|
450 |
return 1;
|
slouken@0
|
451 |
}
|
slouken@0
|
452 |
|
slouken@1895
|
453 |
void
|
slouken@1895
|
454 |
SDL_SetEventFilter(SDL_EventFilter filter, void *userdata)
|
slouken@0
|
455 |
{
|
slouken@1895
|
456 |
SDL_Event bitbucket;
|
slouken@0
|
457 |
|
slouken@1895
|
458 |
/* Set filter and discard pending events */
|
slouken@1895
|
459 |
SDL_EventOK = filter;
|
slouken@1895
|
460 |
SDL_EventOKParam = userdata;
|
slouken@1895
|
461 |
while (SDL_PollEvent(&bitbucket) > 0);
|
slouken@0
|
462 |
}
|
slouken@0
|
463 |
|
slouken@1895
|
464 |
SDL_bool
|
slouken@1895
|
465 |
SDL_GetEventFilter(SDL_EventFilter * filter, void **userdata)
|
slouken@0
|
466 |
{
|
slouken@1895
|
467 |
if (filter) {
|
slouken@1895
|
468 |
*filter = SDL_EventOK;
|
slouken@1895
|
469 |
}
|
slouken@1895
|
470 |
if (userdata) {
|
slouken@1895
|
471 |
*userdata = SDL_EventOKParam;
|
slouken@1895
|
472 |
}
|
slouken@1895
|
473 |
return SDL_EventOK ? SDL_TRUE : SDL_FALSE;
|
slouken@0
|
474 |
}
|
slouken@0
|
475 |
|
slouken@1895
|
476 |
void
|
slouken@1895
|
477 |
SDL_FilterEvents(SDL_EventFilter filter, void *userdata)
|
slouken@0
|
478 |
{
|
slouken@1895
|
479 |
if (SDL_mutexP(SDL_EventQ.lock) == 0) {
|
slouken@1895
|
480 |
int spot;
|
slouken@0
|
481 |
|
slouken@1895
|
482 |
spot = SDL_EventQ.head;
|
slouken@1895
|
483 |
while (spot != SDL_EventQ.tail) {
|
slouken@1895
|
484 |
if (filter(userdata, &SDL_EventQ.event[spot])) {
|
slouken@1895
|
485 |
spot = (spot + 1) % MAXEVENTS;
|
slouken@1895
|
486 |
} else {
|
slouken@1895
|
487 |
spot = SDL_CutEvent(spot);
|
slouken@1895
|
488 |
}
|
slouken@1895
|
489 |
}
|
slouken@1895
|
490 |
}
|
slouken@1895
|
491 |
SDL_mutexV(SDL_EventQ.lock);
|
slouken@1895
|
492 |
}
|
slouken@0
|
493 |
|
slouken@1895
|
494 |
Uint8
|
slouken@1895
|
495 |
SDL_EventState(Uint8 type, int state)
|
slouken@1895
|
496 |
{
|
slouken@1895
|
497 |
SDL_Event bitbucket;
|
slouken@1895
|
498 |
Uint8 current_state;
|
slouken@1895
|
499 |
|
slouken@1895
|
500 |
/* If SDL_ALLEVENTS was specified... */
|
slouken@1895
|
501 |
if (type == 0xFF) {
|
slouken@1895
|
502 |
current_state = SDL_IGNORE;
|
slouken@1895
|
503 |
for (type = 0; type < SDL_NUMEVENTS; ++type) {
|
slouken@1895
|
504 |
if (SDL_ProcessEvents[type] != SDL_IGNORE) {
|
slouken@1895
|
505 |
current_state = SDL_ENABLE;
|
slouken@1895
|
506 |
}
|
slouken@1895
|
507 |
SDL_ProcessEvents[type] = state;
|
slouken@1895
|
508 |
if (state == SDL_ENABLE) {
|
slouken@1895
|
509 |
SDL_eventstate |= (0x00000001 << (type));
|
slouken@1895
|
510 |
} else {
|
slouken@1895
|
511 |
SDL_eventstate &= ~(0x00000001 << (type));
|
slouken@1895
|
512 |
}
|
slouken@1895
|
513 |
}
|
slouken@1895
|
514 |
while (SDL_PollEvent(&bitbucket) > 0);
|
slouken@1895
|
515 |
return (current_state);
|
slouken@1895
|
516 |
}
|
slouken@1895
|
517 |
|
slouken@1895
|
518 |
/* Just set the state for one event type */
|
slouken@1895
|
519 |
current_state = SDL_ProcessEvents[type];
|
slouken@1895
|
520 |
switch (state) {
|
slouken@1895
|
521 |
case SDL_IGNORE:
|
slouken@1895
|
522 |
case SDL_ENABLE:
|
slouken@1895
|
523 |
/* Set state and discard pending events */
|
slouken@1895
|
524 |
SDL_ProcessEvents[type] = state;
|
slouken@1895
|
525 |
if (state == SDL_ENABLE) {
|
slouken@1895
|
526 |
SDL_eventstate |= (0x00000001 << (type));
|
slouken@1895
|
527 |
} else {
|
slouken@1895
|
528 |
SDL_eventstate &= ~(0x00000001 << (type));
|
slouken@1895
|
529 |
}
|
slouken@1895
|
530 |
while (SDL_PollEvent(&bitbucket) > 0);
|
slouken@1895
|
531 |
break;
|
slouken@1895
|
532 |
default:
|
slouken@1895
|
533 |
/* Querying state? */
|
slouken@1895
|
534 |
break;
|
slouken@1895
|
535 |
}
|
slouken@1895
|
536 |
return (current_state);
|
slouken@0
|
537 |
}
|
slouken@0
|
538 |
|
slouken@0
|
539 |
/* This is a generic event handler.
|
slouken@0
|
540 |
*/
|
slouken@1895
|
541 |
int
|
slouken@1895
|
542 |
SDL_SendSysWMEvent(SDL_SysWMmsg * message)
|
slouken@0
|
543 |
{
|
slouken@1895
|
544 |
int posted;
|
slouken@0
|
545 |
|
slouken@1895
|
546 |
posted = 0;
|
slouken@1895
|
547 |
if (SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE) {
|
slouken@1895
|
548 |
SDL_Event event;
|
slouken@1895
|
549 |
SDL_memset(&event, 0, sizeof(event));
|
slouken@1895
|
550 |
event.type = SDL_SYSWMEVENT;
|
slouken@1895
|
551 |
event.syswm.msg = message;
|
slouken@1895
|
552 |
posted = (SDL_PushEvent(&event) > 0);
|
slouken@1895
|
553 |
}
|
slouken@1895
|
554 |
/* Update internal event state */
|
slouken@1895
|
555 |
return (posted);
|
slouken@0
|
556 |
}
|
slouken@1895
|
557 |
|
slouken@1895
|
558 |
/* vi: set ts=4 sw=4 expandtab: */
|