public SoundEffect(AudioDevice device, string filename)
{
dev = device;
List<byte> totalBytes = new List<byte> ();
byte[] buffer = new byte[4096];
var stream = File.OpenRead (filename);
ALFormat fmt;
int sampleRate;
using (var decoder = DecoderFactory.GetDecoderFromStream (stream)) {
int read = 0;
fmt = decoder.Format;
sampleRate = decoder.SampleRate;
while ((read = decoder.Read (4096, buffer)) == 4096) {
totalBytes.AddRange (buffer);
}
totalBytes.AddRange (buffer.Take (read));
}
dev.EnsureAudioThread(() => {
alBuffer = AL.GenBuffer();
AL.BufferData(
alBuffer,
fmt,
totalBytes.ToArray(),
totalBytes.Count,
sampleRate
);
});
}
internal StreamingAudio(AudioDevice device, ALFormat format, int sampleRate)
{
bufferFormat = format;
while (!device.ready)
;
var sid = AL.GenSource ();
sourceId = (int)sid;
AudioDevice.CheckALError ();
bufferIds = AL.GenBuffers (4);
AudioDevice.CheckALError ();
this.device = device;
this.sampleRate = sampleRate;
}
public SoundEffect(AudioDevice device, Sound sound) : this(device, sound.Filename)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="nginz.SoundManager"/> class.
/// </summary>
public SoundManager()
{
Device = new AudioDevice ();
}
/// <summary>
/// Initializes a new instance of the <see cref="nginz.SoundManager"/> class.
/// </summary>
public SoundManager()
{
Device = new AudioDevice();
}
public SoundEffect(AudioDevice device, Sound sound)
: this(device, sound.Filename)
{
}
internal void Update()
{
//manage state
if (currentState == AudioPlayState.Stopped)
{
AL.SourceStop(sourceId);
device.Remove(this);
threadRunning = false;
if (!userStopped)
{
if (PlaybackFinished != null)
{
PlaybackFinished(this, true);
}
}
userStopped = false;
return;
}
var state = AL.GetSourceState(sourceId);
AudioDevice.CheckALError();
if (currentState == AudioPlayState.Paused)
{
if (state != ALSourceState.Paused)
{
AL.SourcePause(sourceId);
}
return;
}
//load buffers
int processed_count;
AL.GetSource(sourceId, ALGetSourcei.BuffersProcessed, out processed_count);
while (processed_count > 0)
{
int bid = AL.SourceUnqueueBuffer(sourceId);
if (bid != 0 && !finished)
{
int length = BufferNeeded(this, buffer);
finished = length <= 0;
if (!finished)
{
AL.BufferData(bid, bufferFormat, buffer, length, sampleRate);
AL.SourceQueueBuffer(sourceId, bid);
}
}
--processed_count;
}
//check buffer
if (state == ALSourceState.Stopped && !finished)
{
AL.SourcePlay(sourceId);
}
//are we finished?
if (finished && state == ALSourceState.Stopped)
{
device.Remove(this);
currentState = AudioPlayState.Stopped;
threadRunning = false;
Empty();
if (PlaybackFinished != null)
{
PlaybackFinished(this, false);
}
}
}
