Warning: There was an OpenGL error: #1282

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Warning: There was an OpenGL error: #1282

(39 posts) (13 voices)

Started 1 year ago by straydogstrut
Latest reply from janh

Tags:

OpenGL

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appwerkz
Member

Hi

I am getting a similar OPenGL warning followed by error. I am using Sparrow1.1.
This started happening in the following use case
1. UIViewController1 adds UIViewController2 to UINavigationController stack.
2. UIViewController2 adds a SPView and SPStage and plays a game all in sparrow.
3. When game is done, UIViewController1 pops UIViewController2 from the nav stack and releases its own reference to it.
4. UIViewController1 now initializes a new instance of UIViewController2 and adds to nav stack.
5. When UIViewController2 creates the stage object, the error occurs.

Attaching the debug trace to the end of this post. Any ideas why this is happening? and how to avert it?

2011-04-28 16:20:55.813 ThinkOcean[24614:207] failed to create framebuffer: 8cd6
2011-04-28 16:20:55.824 ThinkOcean[24614:207] Warning: There was an OpenGL error: #1282
2011-04-28 16:20:55.827 ThinkOcean[24614:207] Warning: There was an OpenGL error: #1282
2011-04-28 16:20:55.855 ThinkOcean[24614:207] Warning: There was an OpenGL error: #1282
2011-04-28 16:20:55.879 ThinkOcean[24614:207] Warning: There was an OpenGL error: #1282
2011-04-28 16:20:55.914 ThinkOcean[24614:207] Warning: There was an OpenGL error: #1282
2011-04-28 16:20:55.947 ThinkOcean[24614:207] Warning: There was an OpenGL error: #1282
2011-04-28 16:20:55.974 ThinkOcean[24614:207] Warning: There was an OpenGL error: #1282
2011-04-28 16:20:56.013 ThinkOcean[24614:207] Warning: There was an OpenGL error: #1282
2011-04-28 16:20:56.041 ThinkOcean[24614:207] Warning: There was an OpenGL error: #1282
2011-04-28 16:20:56.080 ThinkOcean[24614:207] Warning: There was an OpenGL error: #1282
2011-04-28 16:20:56.113 ThinkOcean[24614:207] Warning: There was an OpenGL error: #1282
2011-04-28 16:20:56.146 ThinkOcean[24614:207] Warning: There was an OpenGL error: #1282
2011-04-28 16:20:56.178 ThinkOcean[24614:207] -[SPImage view]: unrecognized selector sent to instance 0x92340c0
2011-04-28 16:20:56.184 ThinkOcean[24614:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[SPImage view]: unrecognized selector sent to instance 0x92340c0'
*** Call stack at first throw:
(
0 CoreFoundation 0x013445a9 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x01498313 objc_exception_throw + 44
2 CoreFoundation 0x013460bb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
3 CoreFoundation 0x012b5966 ___forwarding___ + 966
4 CoreFoundation 0x012b5522 _CF_forwarding_prep_0 + 50
5 UIKit 0x0064f8cd -[UINavigationController navigationTransitionView:didEndTransition:fromView:toView:] + 190
6 UIKit 0x007e0a27 -[UINavigationTransitionView _notifyDelegateTransitionDidStopWithContext:] + 345
7 UIKit 0x007e1bd6 -[UINavigationTransitionView _cleanupTransition] + 712
8 UIKit 0x005c6fb9 -[UIViewAnimationState sendDelegateAnimationDidStop:finished:] + 294
9 UIKit 0x005c6e4b -[UIViewAnimationState animationDidStop:finished:] + 77
10 QuartzCore 0x004d699b _ZL23run_animation_callbacksdPv + 278
11 QuartzCore 0x0047b651 _ZN2CAL14timer_callbackEP16__CFRunLoopTimerPv + 157
12 CoreFoundation 0x013258c3 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 19
13 CoreFoundation 0x01326e74 __CFRunLoopDoTimer + 1220
14 CoreFoundation 0x012832c9 __CFRunLoopRun + 1817
15 CoreFoundation 0x01282840 CFRunLoopRunSpecific + 208
16 CoreFoundation 0x01282761 CFRunLoopRunInMode + 97
17 GraphicsServices 0x02d951c4 GSEventRunModal + 217
18 GraphicsServices 0x02d95289 GSEventRun + 115
19 UIKit 0x005a4c93 UIApplicationMain + 1160
20 ThinkOcean 0x00002cc9 main + 121
21 ThinkOcean 0x00002c45 start + 53
)
terminate called after throwing an instance of 'NSException'
[Switching to process 24614 thread 0x207]
(gdb)

Posted 1 year ago #
Daniel
Primary Feather

Hm ... this line is a little fishy:

[SPImage view]: unrecognized selector sent to instance 0x92340c0

Perhaps this is the root of the problem? The SPImage class does not have a "view" method. So you either call it accidentally, or you have got a pointer that points to the wrong position in memory. (The latter is, unfortunately, difficult to debug.)

Posted 1 year ago #
ortnec
Member

Hi all,

I'm having sort of the same problem...
I have a NavigationController for the menus and stuff and when the user picks the character he wants to play with, I do the following:

add the SPView to the current view
instantiate Game
set the stage of the SPView to the newly instantiated Game
start the SPView

After the game finishes I
stop the SPView
remove the SPView from the currentView

and I'm ready to do the same thing again.

The problem is that the very first time I never had any problems, starting from the second time I start seeing the following messages on my Console:

failed to create framebuffer: 8cd6
Warning: There was an OpenGL error: #1286
Warning: There was an OpenGL error: #1282
Warning: There was an OpenGL error: #1282
(the 1282 error appears 140 times)
After that the game runs just fine but eventually the app quits without any message or backtrace.

I tried putting a breakpoint when Sparrow NSLogs the "failed to create framebuffer" error, I press "Continue" and I see just this:

failed to create framebuffer: 8cd6
Warning: There was an OpenGL error: #1286
Warning: There was an OpenGL error: #1282

Without the repetitions of the 1282 error...
The app doesn't crash at all, looks like the time it takes for the Debugger to show up and for me to click the continue button de-clogs the video board.

Any Ideas?

Thanks,

Matteo

Posted 1 year ago #
Daniel
Primary Feather

Hm ... do you re-use the same SPView? If you do, try to create a new one instead, every time you create a new game instance; that way, you're sure to release all resources of the last instance.

Posted 1 year ago #
ortnec
Member

Hi Daniel,

sorry I didn't see your reply, I thought I was going to get a mail if somebody replied... Nevermind, yes I did re-use the same SPView.
I already tried creating new ones for each new game and the OpenGL error is gone but now I have a different problem: I have to reload all the textures for every new SPView/Game that I reallocate.

It's an architectural issue here... I do all the menu stuff in CocoaTouch and just the actual Game is done with Sparrow, is it an usual approach or just plain wrong?
Also, I allocated the SPView in the AppDelegate applicationDidFinishLaunching method and right after that I loaded all the Textures to save time and memory. I thought it was a good idea but apparently I'm wrong. What do you think?

Posted 1 year ago #
Daniel
Primary Feather

Hi Matteo,

you should have received an e-mail, perhaps it was caught by a spam filter? (This topic should be in your "favorites"-list (check that at the top of the page, below the title), and you're normally notified when somebody posts into such a thread).

An SPView and the stage always have to share the same life-cycle. In the current architecture, this is unfortunately not intuitive to see. (I am currently thinking about changing the interface to make this more obvious, or to make it impossible to separate the two).

Your approach is basically correct: PenguFlip and Twins do it the same way (menu: Cocoa Touch, Game: Sparrow). The only difference is that in those games, the SPView and the Game are recreated every time the game starts (and released when it ends). The menu, on the other hand, is released when the game starts and recreated when it ends.

Those games, however, do not have that many textures, so that was not difficult to do. If you have got so many textures that it takes a while to prepare the game, I recommend you split the loading up in 2 parts: first create a loading screen (as the first frame of your game), then start loading the textures as soon as the loading screen is visible.

If it takes only a few moments to load the textures, you can also use a trick I used in PenguFlip: the menu blends to white when it disappears, and the game blends from white. That way, the transition seems perfectly natural, without any loading image.

I hope that helps!

Posted 1 year ago #
enbr
Moderator

Ugh, I'm getting this error again!
Does anyone know what the first two messages mean?
EDIT: I also found this info. Apparently 8cd6 is the status code for GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_OES.

2011-09-08 17:49:33.202 Whirl World[1206:17403] failed to create framebuffer: 0
2011-09-08 17:49:33.604 Whirl World[1206:c503] failed to create framebuffer: 8cd6
2011-09-08 17:49:33.604 Whirl World[1206:c503] Warning: There was an OpenGL error: #1286
2011-09-08 17:49:33.609 Whirl World[1206:c503] Warning: There was an OpenGL error: #1282
2011-09-08 17:49:33.626 Whirl World[1206:c503] Warning: There was an OpenGL error: #1282
2011-09-08 17:49:33.642 Whirl World[1206:c503] Warning: There was an OpenGL error: #1282
2011-09-08 17:49:33.659 Whirl World[1206:c503] Warning: There was an OpenGL error: #1282
2011-09-08 17:49:33.675 Whirl World[1206:c503] Warning: There was an OpenGL error: #1282
2011-09-08 17:49:33.692 Whirl World[1206:c503] Warning: There was an OpenGL error: #1282
2011-09-08 17:49:33.709 Whirl World[1206:c503] Warning: There was an OpenGL error: #1282
2011-09-08 17:49:33.725 Whirl World[1206:c503] Warning: There was an OpenGL error: #1282
2011-09-08 17:49:33.742 Whirl World[1206:c503] Warning: There was an OpenGL error: #1282
2011-09-08 17:49:33.759 Whirl World[1206:c503] Warning: There was an OpenGL error: #1282
2011-09-08 17:49:33.776 Whirl World[1206:c503] Warning: There was an OpenGL error: #1282
2011-09-08 17:49:33.792 Whirl World[1206:c503] Warning: There was an OpenGL error: #1282

Posted 8 months ago #
enbr
Moderator
I solved my problem. The issue was apparently occurring because I was calling a delegate method from my web manager within a block running on a background thread. When I wrapped it in a dispatch_async call, the problem disappeared.
dispatch_async(dispatch_get_main_queue(), ^{ [delegate webManager:self loggedIn:YES username:responseString]; });
Posted 8 months ago #

janh
Member

I'm having the same problem. I coded my menu and lobby in Cocoa, and the game in Sparrow. When I load the UIViewController from the game, I initialize sparrow in the loadView() method:

- (void)loadView
{
    if (sparrowView != nil)
    {
        NSLog(@"INITIALIZED");
        if ([sparrowView isStarted])
        {
            NSLog(@"STARTED");
        }
    }
 
    // Get the application window
    UIWindow *window = [[UIApplication sharedApplication] keyWindow];
 
    // Create sparrow view
    sparrowView = [[SPView alloc] initWithFrame:window.bounds];
 
    // Add the sparrow view to the window
    [self setView:sparrowView];
 
    // Create the sparrow pool
    SP_CREATE_POOL(pool);
 
    // Settings
    [SPStage setSupportHighResolutions:YES];
 
    // Create the game
    Game *game = [[Game alloc] init];
    sparrowView.stage = game;
    sparrowView.multipleTouchEnabled = YES;
    sparrowView.frameRate = 60.0f;
    [game release];
 
    // Start the game
    [sparrowView start];
 
    // Release the sparrow pool
    SP_RELEASE_POOL(pool);
}

When I return from the game to the lobby, I stop sparrow and release its object:

- (void)onGameStopped
{
    // Stop the sparrow view
    [sparrowView stop];
 
    // Stop the audio engine
    [SPAudioEngine stop];
 
    // Remove the sparrow view from the view controller
    [sparrowView removeFromSuperview];
 
    // Release sparrow view
    [sparrowView release];
 
    // Go back to login screen
    [self performSegueWithIdentifier:@"gameToLobbySegue" sender:nil];
}

This works all fine the first time I launch the game. But when I return to the lobby, and try starting the game again, I get a bunch of openGL errors:

2012-03-30 09:59:18.409 XXX[3480:707] failed to create framebuffer: 8cd6
2012-03-30 09:59:18.439 XXX[3480:707] failed to create framebuffer: 8cd6
2012-03-30 09:59:18.459 XXX[3480:707] Warning: There was an OpenGL error: #1286
2012-03-30 09:59:18.469 XXX[3480:707] failed to create framebuffer: 8cd6
2012-03-30 09:59:18.487 XXX[3480:707] Warning: There was an OpenGL error: #1282
2012-03-30 09:59:18.632 XXX[3480:707] Warning: There was an OpenGL error: #1282
2012-03-30 09:59:18.656 XXX[3480:707] Warning: There was an OpenGL error: #1282
2012-03-30 09:59:18.680 XXX[3480:707] Warning: There was an OpenGL error: #1282

This is the same problem as mentioned in this topic. The solution you proposed (always destroy the sparrow object before starting a new instance) doesn't seem to work for me.

Posted 1 month ago #

janh
Member

It seems the problem is fixed now. I was working with some Singleton classes that kept some images in memory, even though the sparrow object was released...

Posted 1 month ago #

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