void _Begin()
{
if (playing)
{
Cleanup();
}
dataleft = true;
playing = true;
var bytes = BufferAllocator.AllocateBytes();
for (int i = 0; i < 3; i++)
{
var b = manager.Buffers.Dequeue();
int read = sound.Data.Read(bytes, 0, bytes.Length);
if (read != 0)
{
Al.BufferData(b, sound.Format, bytes, read, sound.Frequency);
Al.CheckErrors();
Al.alSourceQueueBuffers(ID, 1, ref b);
Al.CheckErrors();
}
else
{
manager.Buffers.Enqueue(b);
}
if (read < bytes.Length)
{
if (!looping)
{
dataleft = false;
break;
}
else
{
sound.Data.Seek(0, SeekOrigin.Begin);
}
}
}
BufferAllocator.Free(bytes);
Al.alSourcef(ID, Al.AL_GAIN, ALUtils.ClampVolume(_gain));
Al.alSourcePlay(ID);
Al.CheckErrors();
manager.activeStreamers.Add(this);
}
public bool Update()
{
bool hadData = dataleft;
//Do things
if (dataleft)
{
int processed;
Al.alGetSourcei(ID, Al.AL_BUFFERS_PROCESSED, out processed);
Al.CheckErrors();
var bytes = BufferAllocator.AllocateBytes();
for (int i = 0; i < processed; i++)
{
uint buf = 0;
Al.alSourceUnqueueBuffers(ID, 1, ref buf);
int read = sound.Data.Read(bytes, 0, bytes.Length);
if (read != 0)
{
Al.BufferData(buf, sound.Format, bytes, read, sound.Frequency);
Al.CheckErrors();
Al.alSourceQueueBuffers(ID, 1, ref buf);
Al.CheckErrors();
if (read < bytes.Length)
{
if (looping)
{
sound.Data.Seek(0, SeekOrigin.Begin);
}
else
{
dataleft = false;
}
}
}
else
{
if (looping)
{
sound.Data.Seek(0, SeekOrigin.Begin);
read = sound.Data.Read(bytes, 0, bytes.Length);
Al.BufferData(buf, sound.Format, bytes, read, sound.Frequency);
Al.CheckErrors();
Al.alSourceQueueBuffers(ID, 1, ref buf);
Al.CheckErrors();
}
else
{
dataleft = false;
manager.Buffers.Enqueue(buf);
break;
}
}
}
BufferAllocator.Free(bytes);
}
//Return buffers
int val;
Al.alGetSourcei(ID, Al.AL_SOURCE_STATE, out val);
Al.CheckErrors();
if (val != Al.AL_PLAYING && val != Al.AL_PAUSED)
{
if (hadData)
{
FLLog.Warning("Audio", "Buffer underrun");
Al.alSourcePlay(ID);
Al.CheckErrors();
}
else
{
CleanupDelayed();
return(false);
}
}
return(true);
}
protected override void Dispose(bool disposing)
{
BufferAllocator.Free(floats);
reader.Dispose();
base.Dispose(disposing);
}