Fix SetVideoFX not being called from the mainthread

Common.iphone/KBDController.h

@@ -133,6 +133,7 @@ enum
 -(void)resetSpecialKeys;
 -(void)unloadSpecialKeys;
 - (void) animateDisk:(id)_id ;
+-(void) animateDiskEjection:(id)_id;
 -(void)refreshControls:(id)sender;
 - (void) detectHardwareKeyboard:(id)_id ;
 - (void)setLoading:(NSNumber*)_nsvisible;

Common.iphone/activegsAppDelegate.mm

@@ -70,12 +70,14 @@ void x_notify_eject()
     @autoreleasepool {
         [[pManager getEmulatorView].kbdc performSelectorOnMainThread:@selector(animateDiskEjection:) withObject:nil waitUntilDone:NO];
     }
-    
 }
 
 void x_set_video_fx(videofxenum _vfx)
 {
-    	[pManager getEmulatorView].zv.crt.hidden = (_vfx==VIDEOFX_CRT?0:1);
+     @autoreleasepool {
+         [[pManager getEmulatorView]  performSelectorOnMainThread:@selector(setVideoFx:) withObject:[NSNumber numberWithInt:_vfx] waitUntilDone:NO];
+     }
+    
 }
 
 

Common.iphone/activegsEmulatorController.h

@@ -69,6 +69,7 @@ enum attachMode
 #endif
 
 -(void) updateView;
+-(void)setVideoFx: (NSNumber*)_vfxNumber;
 
 @property	(nonatomic, strong) customView* contentView;
 @property	(nonatomic, strong) zoomEmulatorView* zv;

Common.iphone/activegsEmulatorController.mm

@@ -672,10 +672,13 @@ int	x_lock_zoom = 0;
 }
 
 - (void)dealloc {
-
-    self.zv;
     self.zv = nil;
+}
 
+- (void)setVideoFx: (NSNumber*)_vfxNumber
+{
+    int vfx = [_vfxNumber intValue];
+    self.zv.crt.hidden = (vfx==VIDEOFX_CRT?0:1);
 }
 
 @end