bool AudioDevice::createMainContext()
{
LogInfo("Creating OpenAL main context");
// Create a main context.
mainContext = createContext();
mainContext->makeCurrent();
const ALchar* version = alGetString(AL_VERSION);
if( !version )
{
LogWarn("Could not get OpenAL version");
return false;
}
LogInfo("Using OpenAL version %s", version);
if( AudioCheckError() )
{
LogWarn("Error initializing OpenAL: %s", AudioGetError());
return false;
}
return true;
}
void AudioDevice::setVolume(float volume)
{
alListenerf(AL_GAIN, volume);
if(AudioCheckError())
{
LogWarn("Error changing listener volume: %s", AudioGetError());
return;
}
}
void AudioContext::setPosition(const Vector3& position)
{
// Update OpenAL's listener position.
alListenerfv(AL_POSITION, &position.x);
if(AudioCheckError())
{
LogWarn( "Could not set listener position: %s", AudioGetError());
return;
}
}
void AudioContext::setVolume(float volume)
{
// Update OpenAL's volume.
alListenerf(AL_GAIN, volume);
if(AudioCheckError())
{
LogWarn("Could not set new volume: %s", AudioGetError());
return;
}
}
void AudioContext::setOrientation(const Vector3& rotation)
{
Vector3 data[] = { rotation, Vector3::UnitY };
alListenerfv(AL_ORIENTATION, (const ALfloat *) &data );
if(AudioCheckError())
{
LogWarn( "Could not set listener orientation: %s", AudioGetError());
return;
}
}
AudioDevice::~AudioDevice()
{
if(!device) return;
#pragma TODO("Check that all contexts/buffers are closed on exit")
Deallocate(mainContext);
if(!alcCloseDevice(device))
{
LogWarn("Error closing OpenAL device: %s", AudioGetError());
return;
}
}
