Need help with OpenAL

We are having some trouble getting OpenAL for work on the Playbook.

The first call OpenAL we do is:

alcOpenDevice (0);

When we call alGetError(), immediately after, it returns AL_INVALID_OPERATION.

Although the subsequent alGetError call returns AL_INVALID_OPERATION, the call to alcOpenDevice in fact does not return 0. Also, the next call to alcCreateContext generates AL_INVALID_OPERATION but seems to take place by the return value. alcMakeContextCurrent does not generate an error.

Note: If we call alGetError() before the call to alcOpenDevice(), it also returns AL_INVALID_OPERATION. The OAL documentation says it should return AL_NO_ERROR in this case. This may or may not be a clue.

Also note: we tried to call

alcOpenDevice (alcGetString (0, ALC_DEFAULT_DEVICE_SPECIFIER));

and

alcOpenDevice (alcGetString (0, ALC_DEVICE_SPECIFIER));

Two of these appeals give the same result as alcOpenDevice (0);

More information, that may be irrelevant because of previous problems: alutLoadMemoryFromFile returns 0 in these circumstances but does not generate an error. alBufferData then generates AL_INVALID_ENUM or AL_INVALID_VALUE, probably due to the data parameter passed by 0.

Someone here managed to use OpenAL in a Blackberry app on the Playbook? That could hurt us? Thanks in advance for any potential leads on this issue.

I use openAL for one of our applications.

initialization of the device - I use the small end of the following code:

ALCcontext *context;
ALCdevice *device;

if (!alutInit(NULL, NULL)) {
    fprintf(stderr, "init alut error\n");
}
device = alcOpenDevice(NULL);
if (device == NULL) {
    fprintf(stderr, "device error\n");
}

//Create a context
context = alcCreateContext(device, NULL);

Tags: BlackBerry Developers

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