CocosDenshion::SimpleAudioEngine::sharedEngine()->playBackgroundMusic(popMusicName, true);, A BUG!:)

cocos2d-x C++
#1

hi guys:
i use this method to play music, i can play every normal music, but when i close my game, my game crash…

the bugs tell it’s swapbuffer problem… does anybody know it, thanks ~

#2

You have to be more specific! Witch device are you trying ? Are you using the simulator ? Is it on Android ? iOS ? Happens on both ? Are you using MP3 ? OGG ? It crashes without log ? Are you pausing you background music when going to background ? Are you truly closing your game ?

Give us more clues and maybe we can help you out! :wink:

#3

Hi joe: I am using ipod && ipad to test my game, and this 2 device are all crash when i close game.

if I do not use SimpleAudioEngine::sharedEngine()~~>playBackgroundMusic, everything is fine…
the music is MP3.
I run a code example found from the ray website, introduced how to use cocos2d-x.
game is not crash, but can not hear backgroundmusic sound.
here is the link: http://www.raywenderlich.com/11338/cocos2d-x-for-ios-and-android-space-game
here is my detail bug info:

~~ (void) swapBuffers {
// IMPORTANT:
// - preconditions
// > context_ MUST be the OpenGL context
//> renderbuffer_ must be the the RENDER BUFFER

#ifdef __IPHONE_4_0

if (multiSampling_) {
/* Resolve from msaaFramebuffer to resolveFramebuffer */
//glDisable(GL_SCISSOR_TEST);
glBindFramebufferOES(GL_READ_FRAMEBUFFER_APPLE, [renderer_ msaaFrameBuffer]);
glBindFramebufferOES(GL_DRAW_FRAMEBUFFER_APPLE, [renderer_ defaultFrameBuffer]);
glResolveMultisampleFramebufferAPPLE();
}

if( discardFramebufferSupported_) {
if (multiSampling_) {
if (depthFormat_) {
GLenum attachments[] = {GL_COLOR_ATTACHMENT0_OES, GL_DEPTH_ATTACHMENT_OES};
glDiscardFramebufferEXT(GL_READ_FRAMEBUFFER_APPLE, 2, attachments);
}
else {
GLenum attachments[] = {GL_COLOR_ATTACHMENT0_OES};
glDiscardFramebufferEXT(GL_READ_FRAMEBUFFER_APPLE, 1, attachments);
}

glBindRenderbufferOES(GL_RENDERBUFFER_OES, [renderer_ colorRenderBuffer]);
}
// not MSAA
else if (depthFormat_ ) {
GLenum attachments[] = { GL_DEPTH_ATTACHMENT_OES};
glDiscardFramebufferEXT(GL_FRAMEBUFFER_OES, 1, attachments);
}
}
#endif // __IPHONE_4_0

if(![context_ presentRenderbuffer:GL_RENDERBUFFER_OES]) {
// CCLOG (@“cocos2d: Failed to swap renderbuffer in %s\n”, FUNCTION);
}

#if COCOS2D_DEBUG
CHECK_GL_ERROR();
#endif

// We can safely re-bind the framebuffer here, since this will be the
// 1st instruction of the new main loop
if( multiSampling_ )
glBindFramebufferOES(GL_FRAMEBUFFER_OES, [renderer_ msaaFrameBuffer]);

bug stop here:

if(![context_ presentRenderbuffer:GL_RENDERBUFFER_OES])
{
// CCLOG (@“cocos2d: Failed to swap renderbuffer in %s\n”, FUNCTION);
}

#4

Hi tony, have you resolve the problem, i met it too.

tony come wrote:

hi guys:
i use this method to play music, i can play every normal music, but when i close my game, my game crash…
>
the bugs tell it’s swapbuffer problem… does anybody know it, thanks ~

#5

Do you use SimpleAudioEngine::sharedEngine()->end() when quitting your game?

#6

Hi redaur, yes, I called SimpleAudioEngine::sharedEngine()->end() in SubLayer::onExit, SubLayer extends CCLayer.

redaur redaur wrote:

Do you use SimpleAudioEngine::sharedEngine()->end() when quitting your game?

#7

This sounds similar to this: http://www.cocos2d-iphone.org/forum/topic/7163

I also got an error when quitting my app after adding audio using CocosDenshion.

I got the following output:

libGPUSupportMercury.dylib`gpus_ReturnNotPermittedKillClient:
0x3114d094:  trap
0x3114d096:  nop

After adding the stopAnimation and startAnimation calls like in the last post of the thread I linked to my app no longer crashes.