+++ /dev/null
-//
-// EmuThread.m
-// Pcsx
-//
-// Created by Gil Pedersen on Sun Sep 21 2003.
-// Copyright (c) 2003 __MyCompanyName__. All rights reserved.
-//
-
-#import <ExceptionHandling/NSExceptionHandler.h>
-#import <AppKit/NSApplication.h>
-#include <pthread.h>
-#include <setjmp.h>
-#import "EmuThread.h"
-#include "psxcommon.h"
-#include "plugins.h"
-#include "misc.h"
-
-EmuThread *emuThread;
-NSString *defrostPath = nil;
-static int safeEvent;
-static int paused;
-static int runbios;
-
-static pthread_cond_t eventCond;
-static pthread_mutex_t eventMutex;
-
-#define EMUEVENT_NONE 0
-#define EMUEVENT_PAUSE (1<<0)
-#define EMUEVENT_RESET (1<<1)
-#define EMUEVENT_STOP (1<<2)
-
-@implementation EmuThread
-
-- (void)EmuThreadRun:(id)anObject
-{
- pool = [[NSAutoreleasePool alloc] init];
-
- [[NSNotificationCenter defaultCenter] addObserver:self
- selector:@selector(emuWindowDidClose:)
- name:@"emuWindowDidClose" object:nil];
-
- [[NSNotificationCenter defaultCenter] addObserver:self
- selector:@selector(emuWindowWantPause:)
- name:@"emuWindowWantPause" object:nil];
-
- [[NSNotificationCenter defaultCenter] addObserver:self
- selector:@selector(emuWindowWantResume:)
- name:@"emuWindowWantResume" object:nil];
-
- // we shouldn't change the priority, since we might depend on subthreads
- //[NSThread setThreadPriority:1.0-((1.0-[NSThread threadPriority])/4.0)];
-
- // Do processing here
- if (OpenPlugins() == -1)
- goto done;
-
- setjmp(restartJmp);
-
- EmuReset();
-
- int res = CheckCdrom();
- if (res == -1) {
- ClosePlugins();
- SysMessage(_("Could not check CD-ROM!\n"));
- goto done;
- }
-
- LoadCdrom();
-
- if (defrostPath) {
- LoadState([defrostPath fileSystemRepresentation]);
- [defrostPath release]; defrostPath = nil;
- }
-
- psxCpu->Execute();
-
-done:
- [pool release]; pool = nil;
- emuThread = nil;
-
- return;
-}
-
-- (void)EmuThreadRunBios:(id)anObject
-{
- pool = [[NSAutoreleasePool alloc] init];
-
- [[NSNotificationCenter defaultCenter] addObserver:self
- selector:@selector(emuWindowDidClose:)
- name:@"emuWindowDidClose" object:nil];
-
- [[NSNotificationCenter defaultCenter] addObserver:self
- selector:@selector(emuWindowWantPause:)
- name:@"emuWindowWantPause" object:nil];
-
- [[NSNotificationCenter defaultCenter] addObserver:self
- selector:@selector(emuWindowWantResume:)
- name:@"emuWindowWantResume" object:nil];
-
- // we shouldn't change the priority, since we might depend on subthreads
- //[NSThread setThreadPriority:1.0-((1.0-[NSThread threadPriority])/4.0)];
-
- // Do processing here
- if (OpenPlugins() == -1)
- goto done;
-
- EmuReset();
-
- psxCpu->Execute();
-
-done:
- [pool release]; pool = nil;
- emuThread = nil;
-
- return;
-}
-
-- (void)dealloc
-{
- // remove all registered observers
- [[NSNotificationCenter defaultCenter] removeObserver:self name:nil object:nil];
-
- if (pool)
- [pool release];
-
- [super dealloc];
-}
-
-- (void)emuWindowDidClose:(NSNotification *)aNotification
-{
- [EmuThread stop];
-}
-
-- (void)emuWindowWantPause:(NSNotification *)aNotification
-{
- wasPaused = [EmuThread pause];
-}
-
-- (void)emuWindowWantResume:(NSNotification *)aNotification
-{
- if (!wasPaused) {
- [EmuThread resume];
- }
- wasPaused = NO;
-}
-
-/* called periodically from the emulation thread */
-- (void)handleEvents
-{
- /* only do a trylock here, since we're not interested in blocking,
- and we can just handle events next time round */
- if (pthread_mutex_trylock(&eventMutex) == 0) {
- while (safeEvent) {
- if (safeEvent & EMUEVENT_STOP) {
- /* signify that the emulation has stopped */
- [emuThread autorelease];
- emuThread = nil;
- paused = NO;
-
- /* better unlock the mutex before killing ourself */
- pthread_mutex_unlock(&eventMutex);
-
- ClosePlugins();
- SysClose();
-
- //[[NSThread currentThread] autorelease];
- [NSThread exit];
- return;
- }
-
- if (safeEvent & EMUEVENT_RESET) {
-#if 0
- /* signify that the emulation has stopped */
- [emuThread autorelease];
- emuThread = nil;
-
- /* better unlock the mutex before killing ourself */
- pthread_mutex_unlock(&eventMutex);
-
- ClosePlugins();
-
- // start a new emulation thread
- [EmuThread run];
-
- //[[NSThread currentThread] autorelease];
- [NSThread exit];
- return;
-#else
- safeEvent &= ~EMUEVENT_RESET;
- pthread_mutex_unlock(&eventMutex);
-
- longjmp(restartJmp, 0);
-#endif
- }
-
- if (safeEvent & EMUEVENT_PAUSE) {
- paused = 2;
- /* wait until we're signalled */
- pthread_cond_wait(&eventCond, &eventMutex);
- }
- }
- pthread_mutex_unlock(&eventMutex);
- }
-}
-
-+ (void)run
-{
- int err;
-
- if (emuThread) {
- [EmuThread resume];
- return;
- }
-
- if (pthread_mutex_lock(&eventMutex) != 0) {
- err = pthread_cond_init(&eventCond, NULL);
- if (err) return;
-
- err = pthread_mutex_init(&eventMutex, NULL);
- if (err) return;
-
- pthread_mutex_lock(&eventMutex);
- }
-
- safeEvent = EMUEVENT_NONE;
- paused = NO;
- runbios = NO;
-
- if (SysInit() != 0) {
- pthread_mutex_unlock(&eventMutex);
- return;
- }
-
- emuThread = [[EmuThread alloc] init];
-
- [NSThread detachNewThreadSelector:@selector(EmuThreadRun:)
- toTarget:emuThread withObject:nil];
-
- pthread_mutex_unlock(&eventMutex);
-}
-
-+ (void)runBios
-{
- int err;
-
- if (emuThread) {
- [EmuThread resume];
- return;
- }
-
- if (pthread_mutex_lock(&eventMutex) != 0) {
- err = pthread_cond_init(&eventCond, NULL);
- if (err) return;
-
- err = pthread_mutex_init(&eventMutex, NULL);
- if (err) return;
-
- pthread_mutex_lock(&eventMutex);
- }
-
- safeEvent = EMUEVENT_NONE;
- paused = NO;
- runbios = YES;
-
- if (SysInit() != 0) {
- pthread_mutex_unlock(&eventMutex);
- return;
- }
-
- emuThread = [[EmuThread alloc] init];
-
- [NSThread detachNewThreadSelector:@selector(EmuThreadRunBios:)
- toTarget:emuThread withObject:nil];
-
- pthread_mutex_unlock(&eventMutex);
-}
-
-+ (void)stop
-{
- pthread_mutex_lock(&eventMutex);
- safeEvent = EMUEVENT_STOP;
- pthread_mutex_unlock(&eventMutex);
-
- // wake it if it's sleeping
- pthread_cond_broadcast(&eventCond);
-}
-
-+ (BOOL)pause
-{
- if (paused || ![EmuThread active])
- return YES;
-
- pthread_mutex_lock(&eventMutex);
- safeEvent |= EMUEVENT_PAUSE;
- paused = 1;
- pthread_mutex_unlock(&eventMutex);
-
- pthread_cond_broadcast(&eventCond);
-
- return NO;
-}
-
-+ (BOOL)pauseSafe
-{
- if ((paused == 2) || ![EmuThread active])
- return YES;
-
- [EmuThread pause];
- while ([EmuThread isPaused] != 2) [NSThread sleepUntilDate:[[NSDate date] addTimeInterval:0.05]];
-
- return NO;
-}
-
-+ (void)resume
-{
- if (!paused || ![EmuThread active])
- return;
-
- pthread_mutex_lock(&eventMutex);
-
- safeEvent &= ~EMUEVENT_PAUSE;
- paused = NO;
- pthread_mutex_unlock(&eventMutex);
-
- pthread_cond_broadcast(&eventCond);
-}
-
-+ (void)reset
-{
- pthread_mutex_lock(&eventMutex);
- safeEvent = EMUEVENT_RESET;
- pthread_mutex_unlock(&eventMutex);
-
- pthread_cond_broadcast(&eventCond);
-}
-
-// must only be called from within the emulation thread!!!
-+ (void)resetNow
-{
- /* signify that the emulation has stopped */
- [emuThread autorelease];
- emuThread = nil;
-
- ClosePlugins();
-
- // start a new emulation thread
- [EmuThread run];
-
- //[[NSThread currentThread] autorelease];
- [NSThread exit];
- return;
-}
-
-+ (BOOL)isPaused
-{
- return paused;
-}
-
-+ (BOOL)isRunBios
-{
- return runbios;
-}
-
-+ (BOOL)active
-{
- return emuThread ? YES : NO;
-}
-
-+ (void)freezeAt:(NSString *)path which:(int)num
-{
- BOOL emuWasPaused = [EmuThread pauseSafe];
- char Text[256];
-
- GPU_freeze(2, (GPUFreeze_t *)&num);
- int ret = SaveState([path fileSystemRepresentation]);
- if (ret == 0) sprintf (Text, _("*PCSX*: Saved State %d"), num+1);
- else sprintf (Text, _("*PCSX*: Error Saving State %d"), num+1);
- GPU_displayText(Text);
-
- if (!emuWasPaused) {
- [EmuThread resume];
- }
-}
-
-+ (BOOL)defrostAt:(NSString *)path
-{
- const char *cPath = [path fileSystemRepresentation];
- if (CheckState(cPath) != 0)
- return NO;
-
- defrostPath = [path retain];
- [EmuThread reset];
-
- GPU_displayText(_("*PCSX*: Loaded State"));
- return YES;
-}
-
-@end
notaz.gp2x.de / pcsx_rearmed.git / blobdiff