I have a question about the oalTouch example project.
Specifically the sample code uses the exit( ) function after encountering an
error such as in the sample code below.
I looked up the OpenAL documentation for alGetError( ) and no where does the
OpenAL documentation for alGetError( ) mention that an error returned is
considered fatal and the program must exit.
So what I am wondering is if this is simply a "lazy" example from Apple
(without any "nice" UI warning errors), and should not actually affect the
performance of the app. Obviously if there is an error loading the sound
resource, the sound cannot play.
But I am asking this here anyways in the case that there is actually an issue
where exit( ) is required.
------------------------------------------------ Excerpt from oalTouch sample
project
- (void) initBuffer
{
ALenum error = AL_NO_ERROR;
ALenum format;
ALsizei size;
ALsizei freq;
NSBundle* bundle = [NSBundle mainBundle];
// get some audio data from a wave file
CFURLRef fileURL = (CFURLRef)[[NSURL fileURLWithPath:[bundle
pathForResource:@"sound" ofType:@"caf"]] retain];
if (fileURL)
{
data = MyGetOpenALAudioData(fileURL, &size, &format, &freq);
CFRelease(fileURL);
if((error = alGetError()) != AL_NO_ERROR) {
NSLog(@"error loading sound: %x\n", error);
exit(1);
}
// use the static buffer data API
alBufferDataStaticProc(buffer, format, data, size, freq);
if((error = alGetError()) != AL_NO_ERROR) {
NSLog(@"error attaching audio to buffer: %x\n", error);
}
}
else
NSLog(@"Could not find file!\n");
}_______________________________________________
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