// Copie du buffer de son provenant du 6809 vers le buffer de la carte son
// Cette fonction est lancée lorsque le buffer 6809 est plein
public void PlaySound(byte[] soundBuffer)
{
for (var i = 0; i < NBytes; i++)
{
_data[i / 4] = soundBuffer[i];
}
var buffer = new SoundBuffer();
buffer.BufferData(_data, ALFormat.Mono16, NBytes / 4, FrameRate);
// Queue the buffer
AL.SourceQueueBuffer(_source, buffer.Id);
ALHelper.CheckError("Failed to queue buffer.");
_queuedBuffers.Enqueue(buffer);
// If the source has run out of buffers, restart it
var sourceState = AL.GetSourceState(_source);
if (sourceState == ALSourceState.Stopped || sourceState == ALSourceState.Initial)
{
AL.SourcePlay(_source);
ALHelper.CheckError("Failed to resume source playback.");
}
}
public void UpdateQueue()
{
// Get the completed buffers
AL.GetError();
AL.GetSource(_source, ALGetSourcei.BuffersProcessed, out int numBuffers);
ALHelper.CheckError("Failed to get processed buffer count.");
// Unqueue them
if (numBuffers > 0)
{
AL.SourceUnqueueBuffers(_source, numBuffers);
ALHelper.CheckError("Failed to unqueue buffers.");
for (int i = 0; i < numBuffers; i++)
{
var buffer = _queuedBuffers.Dequeue();
buffer.Dispose();
}
}
}
public Sound()
{
_device = Alc.OpenDevice(null);
ALHelper.CheckError("Failed to OpenDevice.");
_context = Alc.CreateContext(_device, (int[])null);
ALHelper.CheckError("Failed to CreateContext.");
Alc.MakeContextCurrent(_context);
ALHelper.CheckError("Failed to MakeContextCurrent.");
_source = AL.GenSource();
ALHelper.CheckError("Failed to CheckError.");
_data = new byte[NBytes];
_queuedBuffers = new Queue <SoundBuffer>();
AL.Source(_source, ALSourceb.Looping, false);
ALHelper.CheckError("Failed to set source loop state.");
AL.SourcePlay(_source);
ALHelper.CheckError("Failed to play the source.");
}
public void Dispose()
{
//Console.WriteLine("Del buf #" + _buffer);
AL.DeleteBuffer(_id);
ALHelper.CheckError("Failed to DeleteBuffer buffer.");
}
public void BufferData(byte[] data, ALFormat format, int size, int freq)
{
AL.BufferData(_id, format, data, size, freq);
ALHelper.CheckError("Failed to fill buffer.");
}
public SoundBuffer()
{
_id = AL.GenBuffer();
//Console.WriteLine("Gen buf #"+_buffer);
ALHelper.CheckError("Failed to GenBuffers.");
}
