cocos2d for iPhone

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1. 

   Blue Ether
   Member

   So, I've previously been using my own OpenAL code but I recently started using CD instead, because I didn't have anything written to clean up and reload sounds. We're adding levels to a game and will have many sounds for each level with little to no overlap. So, I'm writing code so that all the buffers are cleared and then reloaded when a new level is loaded.

   Problem I'm getting is that some buffers refuse to unload. Im stopping all sounds prior to the unload loop, which iterates through the 32 buffers and calls unloadBuffer on each. The log results are as follows:
   

   2010-02-08 15:14:17.444 [5686:207] Denshion error deleting buffer: a003
   2010-02-08 15:14:17.445 [5686:207] Denshion buffer 1 successfully unloaded
   2010-02-08 15:14:17.445 [5686:207] Denshion buffer 2 successfully unloaded
   2010-02-08 15:14:17.445 [5686:207] Denshion error deleting buffer: a004
   2010-02-08 15:14:17.446 [5686:207] Denshion error deleting buffer: a004
   2010-02-08 15:14:17.446 [5686:207] Denshion error deleting buffer: a004
   2010-02-08 15:14:17.447 [5686:207] Denshion buffer 6 successfully unloaded
   2010-02-08 15:14:17.447 [5686:207] Denshion buffer 7 successfully unloaded
   2010-02-08 15:14:17.447 [5686:207] Denshion buffer 8 successfully unloaded
   2010-02-08 15:14:17.448 [5686:207] Denshion buffer 9 successfully unloaded
   2010-02-08 15:14:17.448 [5686:207] Denshion buffer 10 successfully unloaded
   2010-02-08 15:14:17.448 [5686:207] Denshion buffer 11 successfully unloaded
   2010-02-08 15:14:17.449 [5686:207] Denshion buffer 12 successfully unloaded
   2010-02-08 15:14:17.449 [5686:207] Denshion buffer 13 successfully unloaded
   2010-02-08 15:14:17.449 [5686:207] Denshion buffer 14 successfully unloaded
   2010-02-08 15:14:17.450 [5686:207] Denshion buffer 15 successfully unloaded
   2010-02-08 15:14:17.450 [5686:207] Denshion buffer 16 successfully unloaded
   2010-02-08 15:14:17.451 [5686:207] Denshion buffer 17 successfully unloaded
   2010-02-08 15:14:17.451 [5686:207] Denshion buffer 18 successfully unloaded
   2010-02-08 15:14:17.452 [5686:207] Denshion buffer 19 successfully unloaded
   2010-02-08 15:14:17.452 [5686:207] Denshion buffer 20 successfully unloaded
   2010-02-08 15:14:17.453 [5686:207] Denshion buffer 21 successfully unloaded
   2010-02-08 15:14:17.453 [5686:207] Denshion buffer 22 successfully unloaded
   2010-02-08 15:14:17.453 [5686:207] Denshion buffer 23 successfully unloaded
   2010-02-08 15:14:17.454 [5686:207] Denshion buffer 24 successfully unloaded
   2010-02-08 15:14:17.454 [5686:207] Denshion buffer 25 successfully unloaded
   2010-02-08 15:14:17.455 [5686:207] Denshion buffer 26 successfully unloaded
   2010-02-08 15:14:17.455 [5686:207] Denshion buffer 27 successfully unloaded
   2010-02-08 15:14:17.455 [5686:207] Denshion buffer 28 successfully unloaded
   2010-02-08 15:14:17.456 [5686:207] Denshion buffer 29 successfully unloaded
   2010-02-08 15:14:17.457 [5686:207] Denshion buffer 30 successfully unloaded
   2010-02-08 15:14:17.457 [5686:207] Denshion buffer 31 successfully unloaded

   If I leave out the unload and instead let loadBuffer handle the unloadBuffer call, I get the same errors. For example:

   2010-02-08 15:14:17.480 [5686:a517] Denshion: Loading openAL buffer 0 tap.caf
   2010-02-08 15:14:17.487 [5686:a517] Denshion: non empty buffer, regenerating
   2010-02-08 15:14:17.488 [5686:a517] Denshion: error deleting buffer: a004

   Since I stop all sounds prior to unloading, I don't imagine the sound playing to be an issue.

   Each time I unload and load buffers, more of them throw errors on load.

   Anyone have experience with this or have any suggestions? Much appreciated.

   Posted 6 months ago #
2. 

   Steve Oldmeadow
   Administrator

   Can you post the whole log from Denshion - it is much more useful for me to see the start up and loading code than 20 unloading messages. What device and OS is this occurring on and what version of CocosDenshion are you using?

   Posted 6 months ago #
3. 

   Steve Oldmeadow
   Administrator

   Give the r1780 version of CocosDenshion a try. I just checked in some changes to the way buffer deletion works.

   You now have to enable CD_DEBUG in the CDConfig.h file to get any output to the console from CocosDenshion.

   Posted 6 months ago #
4. 

   Blue Ether
   Member

   Seems to be mostly fixed now. There were actually a few different bugs. One was to do with some looping sfx. Another seemed to be that since alGetError() was not called prior to the unloadSound method, errors that were happening outside of unloadSound were getting reported. That is, unloadSound was working OK, but alGetError was taking a previous error instead. By adding a call to alGetError at the beginning of the unloadSound method in CocosDenshion, I was able to stop the rest of the errors. It sort of begs the question as far as what was actually causing those errors. I'm going to be continuing to work on this until I'm satisfied its all working right, so I'll let you know. I've upgraded unloadSound to r1780.

   Posted 6 months ago #

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