public void SubmitBlankBuffer()
{
if (sourceVoice.State.BuffersQueued > 0)
{
sourceVoice.Discontinuity();
}
}
// The general mixing thread function
void RunAudio()
{
int delay = _samples * 1000 / _sampleRate;
size_t data_len = (size_t)_bufferSize;
byte * data;
// Loop, filling the audio buffers
while (!_shutdown)
{
// Fill the current buffer with sound
if (_enabled)
{
data = _hidden.nextbuf;
}
else
{
/*
* if the device isn't enabled, we still write to the
* work_buffer, so the app's callback will fire with
* a regular frequency, in case they depend on that
* for timing or progress. They can use hotplug
* now to know if the device failed.
*/
data = null;
}
if (data == null)
{
data = _workbuf;
}
lock (_lock)
{
if (_paused)
{
Native.SetMemory(data, _waveFormat.Silence, data_len);
}
else
{
BufferQueueDrainCallback(data, data_len);
}
}
if (data == _workbuf)
{
// nothing to do; pause like we queued a buffer to play.
Native.Delay(delay);
}
else// writing directly to the device.
{
// queue this buffer and wait for it to finish playing.
PlayDevice();
WaitDevice();
}
}
_sourceVoice.Discontinuity();
// Wait for the audio to drain.
Native.Delay(delay * 2);
}