/// <summary>
/// Sets up the hardware resources used by the controller.
/// </summary>
private ALController()
{
if (AL.NativeLibrary == IntPtr.Zero)
{
throw new DllNotFoundException(
"Couldn't initialize OpenAL because the native binaries couldn't be found.");
}
if (!Open())
{
throw new AudioHardwareException(
"OpenAL device could not be initialized, see console output for details.");
}
Efx = new EffectsExtension(Device);
if (ALC.IsExtensionPresent(Device, "ALC_EXT_CAPTURE"))
{
Microphone.PopulateCaptureDevices();
}
// We have hardware here and it is ready
_allSources = new uint[MaxNumberOfSources];
AL.GenSources(_allSources);
ALHelper.CheckError("Failed to generate sources.");
// TODO: allow more effects
if (Efx.IsAvailable)
{
Filter = Efx.GenFilter();
}
_availableSources = new Queue <uint>(_allSources);
_sourcesInUse = new HashSet <uint>();
}
/// <summary>
/// Disposes the <see cref="ALController"/>.
/// </summary>
/// <param name="disposing">If true, the managed resources are to be disposed.</param>
private void Dispose(bool disposing)
{
if (!_isDisposed)
{
if (disposing)
{
Streamer.Dispose();
if (Filter != 0 && Efx.IsAvailable)
{
Efx.DeleteFilter(Filter);
}
SoundEffectInstancePool.DisposeInstances();
AL.DeleteSources(_allSources);
ALHelper.CheckError("Failed to delete source.");
Microphone.StopMicrophones();
DestroyContexts();
}
_isDisposed = true;
}
}
private void PlatformResume()
{
AL.SourcePlay(SourceId.Value);
ALHelper.CheckError("Failed to play the source.");
}
public double GetSourceCurrentPosition(uint sourceId)
{
AL.GetSource(sourceId, ALGetSourcei.SampleOffset, out int pos);
ALHelper.CheckError("Failed to set source offset.");
return(pos);
}
private void PlatformPause()
{
AL.SourcePause(SourceId.Value);
ALHelper.CheckError("Failed to pause the source.");
}
