public void ResumeSource(IALSource source)
{
AL10.alSourcePlay((source as OpenALSource).Handle);
#if VERBOSE_AL_DEBUGGING
CheckALError();
#endif
}
public void Resume()
{
if (INTERNAL_delayMS > 0)
{
INTERNAL_timer.Start();
}
if (INTERNAL_alSource != 0 && State == SoundState.Paused)
{
AL10.alSourcePlay(INTERNAL_alSource);
}
}
private void alSourcePlay()
{
int state = AL10.alGetSourcei(alSource, AL10.AL_SOURCE_STATE);
if (state != AL10.AL_PLAYING)
{
if (minimumNumberBuffers <= 0 || WaitingBuffers >= minimumNumberBuffers)
{
AL10.alSourcePlay(alSource);
}
}
}
public OpenAlSound(uint source, uint buffer, bool looping, bool relative, WPos pos, float volume)
{
Source = source;
Volume = volume;
AL10.alSourcef(source, AL10.AL_PITCH, 1f);
AL10.alSource3f(source, AL10.AL_POSITION, pos.X, pos.Y, pos.Z);
AL10.alSource3f(source, AL10.AL_VELOCITY, 0f, 0f, 0f);
AL10.alSourcei(source, AL10.AL_BUFFER, (int)buffer);
AL10.alSourcei(source, AL10.AL_LOOPING, looping ? 1 : 0);
AL10.alSourcei(source, AL10.AL_SOURCE_RELATIVE, relative ? 1 : 0);
AL10.alSourcef(source, AL10.AL_REFERENCE_DISTANCE, 6826);
AL10.alSourcef(source, AL10.AL_MAX_DISTANCE, 136533);
AL10.alSourcePlay(source);
}
public void SetAllSoundsPaused(bool paused)
{
foreach (var key in sourcePool.Keys)
{
int state;
AL10.alGetSourcei(key, AL10.AL_SOURCE_STATE, out state);
if (state == AL10.AL_PLAYING && paused)
{
AL10.alSourcePause(key);
}
else if (state == AL10.AL_PAUSED && !paused)
{
AL10.alSourcePlay(key);
}
}
}
public void PauseSound(ISound sound, bool paused)
{
if (sound == null)
{
return;
}
var key = ((OpenAlSound)sound).Source;
int state;
AL10.alGetSourcei(key, AL10.AL_SOURCE_STATE, out state);
if (state == AL10.AL_PLAYING && paused)
{
AL10.alSourcePause(key);
}
else if (state == AL10.AL_PAUSED && !paused)
{
AL10.alSourcePlay(key);
}
}
void PauseSound(uint source, bool paused)
{
AL10.alGetSourcei(source, AL10.AL_SOURCE_STATE, out var state);
if (paused)
{
if (state == AL10.AL_PLAYING)
{
AL10.alSourcePause(source);
}
else if (state == AL10.AL_INITIAL)
{
// If a sound hasn't started yet,
// we indicate it should not play be transitioning it to the stopped state.
AL10.alSourcePlay(source);
AL10.alSourceStop(source);
}
}
else if (!paused && state != AL10.AL_PLAYING)
{
AL10.alSourcePlay(source);
}
}
public override void Play()
{
if (State != SoundState.Stopped)
{
return; // No-op if we're already playing.
}
if (INTERNAL_alSource != 0)
{
// The sound has stopped, but hasn't cleaned up yet...
AL10.alSourceStop(INTERNAL_alSource);
AL10.alDeleteSources((IntPtr)1, ref INTERNAL_alSource);
INTERNAL_alSource = 0;
}
while (queuedBuffers.Count > 0)
{
availableBuffers.Enqueue(queuedBuffers.Dequeue());
}
AL10.alGenSources((IntPtr)1, out INTERNAL_alSource);
if (INTERNAL_alSource == 0)
{
System.Console.WriteLine("WARNING: AL SOURCE WAS NOT AVAILABLE. SKIPPING.");
return;
}
// Queue the buffers to this source
while (buffersToQueue.Count > 0)
{
uint nextBuf = buffersToQueue.Dequeue();
queuedBuffers.Enqueue(nextBuf);
AL10.alSourceQueueBuffers(
INTERNAL_alSource,
(IntPtr)1,
ref nextBuf
);
}
// Apply Pan/Position
if (INTERNAL_positionalAudio)
{
INTERNAL_positionalAudio = false;
AL10.alSource3f(
INTERNAL_alSource,
AL10.AL_POSITION,
position.X,
position.Y,
position.Z
);
}
else
{
Pan = Pan;
}
// Reassign Properties, in case the AL properties need to be applied.
Volume = Volume;
IsLooped = IsLooped;
Pitch = Pitch;
// Finally.
AL10.alSourcePlay(INTERNAL_alSource);
OpenALDevice.Instance.dynamicInstancePool.Add(this);
// ... but wait! What if we need moar buffers?
if (PendingBufferCount <= 2 && BufferNeeded != null)
{
BufferNeeded(this, null);
}
}
public virtual void Play()
{
if (State != SoundState.Stopped && INTERNAL_alSource != 0) // FIXME: alSource check part of timer hack!
{
// FIXME: Is this XNA4 behavior?
Stop();
}
if (INTERNAL_delayMS != 0 && !INTERNAL_timer.IsRunning)
{
INTERNAL_timer.Start();
}
if (INTERNAL_timer.ElapsedMilliseconds < INTERNAL_delayMS)
{
return; // We'll be back...
}
INTERNAL_timer.Stop();
INTERNAL_timer.Reset();
if (INTERNAL_alSource != 0)
{
// The sound has stopped, but hasn't cleaned up yet...
AL10.alSourceStop(INTERNAL_alSource);
AL10.alDeleteSources((IntPtr)1, ref INTERNAL_alSource);
INTERNAL_alSource = 0;
}
AL10.alGenSources((IntPtr)1, out INTERNAL_alSource);
if (INTERNAL_alSource == 0)
{
System.Console.WriteLine("WARNING: AL SOURCE WAS NOT AVAILABLE. SKIPPING.");
return;
}
// Attach the buffer to this source
AL10.alSourcei(
INTERNAL_alSource,
AL10.AL_BUFFER,
(int)INTERNAL_parentEffect.INTERNAL_buffer
);
// Apply Pan/Position
if (INTERNAL_positionalAudio)
{
INTERNAL_positionalAudio = false;
AL10.alSource3f(
INTERNAL_alSource,
AL10.AL_POSITION,
position.X,
position.Y,
position.Z
);
}
else
{
Pan = Pan;
}
// Reassign Properties, in case the AL properties need to be applied.
Volume = Volume;
IsLooped = IsLooped;
Pitch = Pitch;
// Apply EFX
if (INTERNAL_alEffectSlot != 0)
{
AL10.alSource3i(
INTERNAL_alSource,
EFX.AL_AUXILIARY_SEND_FILTER,
(int)INTERNAL_alEffectSlot,
0,
0
);
}
AL10.alSourcePlay(INTERNAL_alSource);
}
public OpenAlAsyncLoadSound(uint source, bool looping, bool relative, WPos pos, float volume, int channels, int sampleBits, int sampleRate, Stream stream)
: base(source, looping, relative, pos, volume, sampleRate)
{
// Load a silent buffer into the source. Without this,
// attempting to change the state (i.e. play/pause) the source fails on some systems.
var silentSource = new OpenAlSoundSource(SilentData, SilentData.Length, channels, sampleBits, sampleRate);
AL10.alSourcei(source, AL10.AL_BUFFER, (int)silentSource.Buffer);
playTask = Task.Run(async() =>
{
MemoryStream memoryStream;
using (stream)
{
try
{
memoryStream = new MemoryStream((int)stream.Length);
}
catch (NotSupportedException)
{
// Fallback for stream types that don't support Length.
memoryStream = new MemoryStream();
}
try
{
await stream.CopyToAsync(memoryStream, 81920, cts.Token);
}
catch (TaskCanceledException)
{
// Sound was stopped early, cleanup the unused buffer and exit.
AL10.alSourceStop(source);
AL10.alSourcei(source, AL10.AL_BUFFER, 0);
silentSource.Dispose();
return;
}
}
var data = memoryStream.GetBuffer();
var dataLength = (int)memoryStream.Length;
var bytesPerSample = sampleBits / 8f;
var lengthInSecs = dataLength / (channels * bytesPerSample * sampleRate);
using (var soundSource = new OpenAlSoundSource(data, dataLength, channels, sampleBits, sampleRate))
{
// Need to stop the source, before attaching the real input and deleting the silent one.
AL10.alSourceStop(source);
AL10.alSourcei(source, AL10.AL_BUFFER, (int)soundSource.Buffer);
silentSource.Dispose();
lock (cts)
{
if (!cts.IsCancellationRequested)
{
// TODO: A race condition can happen between the state check and playing/rewinding if a
// user pauses/resumes at the right moment. The window of opportunity is small and the
// consequences are minor, so for now we'll ignore it.
int state;
AL10.alGetSourcei(Source, AL10.AL_SOURCE_STATE, out state);
if (state != AL10.AL_STOPPED)
{
AL10.alSourcePlay(source);
}
else
{
// A stopped sound indicates it was paused before we finishing loaded.
// We don't want to start playing it right away.
// We rewind the source so when it is started, it plays from the beginning.
AL10.alSourceRewind(source);
}
}
}
while (!cts.IsCancellationRequested)
{
// Need to check seek before state. Otherwise, the music can stop after our state check at
// which point the seek will be zero, meaning we'll wait the full track length before seeing it
// has stopped.
var currentSeek = SeekPosition;
int state;
AL10.alGetSourcei(Source, AL10.AL_SOURCE_STATE, out state);
if (state == AL10.AL_STOPPED)
{
break;
}
try
{
// Wait until the track is due to complete, and at most 60 times a second to prevent a
// busy-wait.
var delaySecs = Math.Max(lengthInSecs - currentSeek, 1 / 60f);
await Task.Delay(TimeSpan.FromSeconds(delaySecs), cts.Token);
}
catch (TaskCanceledException)
{
// Sound was stopped early, allow normal cleanup to occur.
}
}
AL10.alSourcei(Source, AL10.AL_BUFFER, 0);
}
});
}
public OpenAlSound(uint source, bool looping, bool relative, WPos pos, float volume, int sampleRate, uint buffer)
: this(source, looping, relative, pos, volume, sampleRate)
{
AL10.alSourcei(source, AL10.AL_BUFFER, (int)buffer);
AL10.alSourcePlay(source);
}
public virtual void Play()
{
AL10.alSourcePlay(Source); Check();
}
public void ResumeSource(IALSource source)
{
AL10.alSourcePlay((source as OpenALSource).Handle);
}
public void Play()
{
AL10.alSourcePlay(_handle);
}
/// <summary>
/// Play this source.
/// </summary>
public void Play()
{
CheckDisposed();
Context.MakeCurrent();
AL10.alSourcePlay(Name);
}
