public void SetAttenuation(float attenuation)
{
if (Active)
{
Al.alSourcef(ID, Al.AL_GAIN, ALUtils.DbToAlGain(attenuation) * man.GetVolume(SoundType.Sfx));
}
Al.CheckErrors();
}
internal void UpdateAttenuation()
{
var gain = ALUtils.ClampVolume(ALUtils.DbToAlGain(attenuation) * man.GetVolume(SoundType.Sfx));
gainSet = true;
dirtyFlags |= FLAG_GAIN;
properties.Gain = gain;
}
public static StreamingSound GetSound(Stream stream)
{
var reader = new VorbisReader(stream, true);
var snd = new StreamingSound();
snd.Data = new VorbisStream(reader);
snd.Frequency = reader.SampleRate;
snd.Format = ALUtils.GetFormat(reader.Channels, 16);
return(snd);
}
void _Begin()
{
if (playing)
{
Cleanup();
}
dataleft = true;
playing = true;
var bytes = ArrayPool <byte> .Shared.Rent(POOL_BUFFER_SIZE);
for (int i = 0; i < 3; i++)
{
var b = manager.Buffers.Dequeue();
int read = Read(bytes, sound.Data);
if (read != 0)
{
try
{
Al.BufferData(b, sound.Format, bytes, read, sound.Frequency);
}
catch (Exception)
{
FLLog.Error("AL", $"Error in source {info}");
throw;
}
Al.alSourceQueueBuffers(ID, 1, ref b);
}
else
{
manager.Buffers.Enqueue(b);
}
if (read < POOL_BUFFER_SIZE)
{
if (!looping)
{
dataleft = false;
break;
}
else
{
sound.Data.Seek(0, SeekOrigin.Begin);
}
}
}
ArrayPool <byte> .Shared.Return(bytes);
Al.alSourcef(ID, Al.AL_GAIN, ALUtils.ClampVolume(_gain));
Al.alSourcePlay(ID);
manager.activeStreamers.Add(this);
}
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 AudioManager(IUIThread uithread)
{
UIThread = uithread;
audioThreadId = Thread.CurrentThread.ManagedThreadId;
initTask = Task.Run(() =>
{
Platform.RegisterDllMap(typeof(AudioManager).Assembly);
Music = new MusicPlayer(this);
//Init context
dev = Alc.alcOpenDevice(null);
ctx = Alc.alcCreateContext(dev, IntPtr.Zero);
Alc.alcMakeContextCurrent(ctx);
for (int i = 0; i < MAX_SOURCES; i++)
{
freeSources.Enqueue(Al.GenSource());
}
for (int i = 0; i < MAX_STREAM_BUFFERS; i++)
{
Buffers.Enqueue(Al.GenBuffer());
}
Instances = new InstanceInfo[MAX_INSTANCES];
for (int i = 0; i < MAX_INSTANCES; i++)
{
Instances[i].Source = uint.MaxValue;
freeInstances.Enqueue((uint)i);
}
uint musicSource;
for (int i = 0; i < 2; i++)
{
while (!freeSources.TryDequeue(out musicSource))
{
}
streamingSources.Enqueue(musicSource);
}
FLLog.Debug("Audio", "Audio initialised");
Al.alListenerf(Al.AL_GAIN, ALUtils.ClampVolume(ALUtils.LinearToAlGain(_masterVolume)));
Ready = true;
});
}
public static StreamingSound GetSound(Stream stream)
{
RiffLoader file = new RiffLoader(stream);
if (file.Format == WaveFormat.PCM)
{
var snd = new StreamingSound();
snd.Format = ALUtils.GetFormat(file.m_Channels, file.Bits);
snd.Frequency = file.Frequency;
snd.Size = file.dataLength;
snd.Data = file.GetDataStream();
return(snd);
}
else if (file.Format == WaveFormat.MP3)
{
return(Mp3Utils.GetSound(file.GetDataStream(), file));
}
throw new NotSupportedException();
}
void UpdateThread()
{
//Init context
IntPtr dev = Alc.alcOpenDevice(null);
IntPtr ctx = Alc.alcCreateContext(dev, IntPtr.Zero);
Alc.alcMakeContextCurrent(ctx);
Al.alListenerf(Al.AL_GAIN, ALUtils.LinearToAlGain(_masterVolume));
for (int i = 0; i < MAX_SOURCES; i++)
{
freeSources.Enqueue(Al.GenSource());
}
for (int i = 0; i < MAX_BUFFERS; i++)
{
Buffers.Enqueue(Al.GenBuffer());
}
uint musicSource;
for (int i = 0; i < 2; i++)
{
while (!freeSources.TryDequeue(out musicSource))
{
}
streamingSources.Enqueue(musicSource);
}
FLLog.Debug("Audio", "Audio initialised");
Ready = true;
while (running)
{
//insert into items to update
while (toAdd.Count > 0)
{
SoundInstance item;
if (toAdd.TryDequeue(out item))
{
sfxInstances.Add(item);
}
}
Action toRun;
if (Actions.TryDequeue(out toRun))
{
toRun();
}
//update SFX
for (int i = sfxInstances.Count - 1; i >= 0; i--)
{
int state;
Al.alGetSourcei(sfxInstances[i].ID, Al.AL_SOURCE_STATE, out state);
Al.CheckErrors();
if (state != Al.AL_PLAYING)
{
sfxInstances[i].Active = false;
if (sfxInstances[i].Dispose != null)
{
sfxInstances[i].Dispose.Dispose();
}
if (sfxInstances[i].OnFinish != null)
{
UIThread.QueueUIThread(sfxInstances[i].OnFinish);
}
freeSources.Enqueue(sfxInstances[i].ID);
sfxInstances.RemoveAt(i);
i--;
}
}
//update Streaming
foreach (var item in activeStreamers)
{
item.Update();
}
foreach (var item in toRemove)
{
activeStreamers.Remove(item);
if (item.Stopped != null)
{
item.OnStopped();
}
}
toRemove.Clear();
Thread.Sleep(5);
}
//Delete context
Alc.alcMakeContextCurrent(IntPtr.Zero);
Alc.alcDestroyContext(ctx);
Alc.alcCloseDevice(ctx);
}
void UpdateThread()
{
audioThreadId = Thread.CurrentThread.ManagedThreadId;
//Init context
IntPtr dev = Alc.alcOpenDevice(null);
IntPtr ctx = Alc.alcCreateContext(dev, IntPtr.Zero);
Alc.alcMakeContextCurrent(ctx);
Al.CheckErrors();
for (int i = 0; i < MAX_SOURCES; i++)
{
freeSources.Enqueue(Al.GenSource());
}
for (int i = 0; i < MAX_STREAM_BUFFERS; i++)
{
Buffers.Enqueue(Al.GenBuffer());
}
Instances = new InstanceInfo[MAX_INSTANCES];
for (int i = 0; i < MAX_INSTANCES; i++)
{
Instances[i].Source = uint.MaxValue;
freeInstances.Enqueue((uint)i);
}
uint musicSource;
for (int i = 0; i < 2; i++)
{
while (!freeSources.TryDequeue(out musicSource))
{
}
streamingSources.Enqueue(musicSource);
}
FLLog.Debug("Audio", "Audio initialised");
Ready = true;
Al.alListenerf(Al.AL_GAIN, ALUtils.ClampVolume(ALUtils.LinearToAlGain(_masterVolume)));
while (running)
{
//Run actions
Action toRun;
while (actions.TryDequeue(out toRun))
{
toRun();
}
//update SFX
for (int i = sfxInstances.Count - 1; i >= 0; i--)
{
var src = Instances[sfxInstances[i]].Source;
var instance = Instances[sfxInstances[i]].Instance;
int state;
Al.alGetSourcei(src, Al.AL_SOURCE_STATE, out state);
Al.CheckErrors();
if (state == Al.AL_STOPPED)
{
Al.alSourcei(src, Al.AL_BUFFER, 0);
freeSources.Enqueue(src);
Instances[sfxInstances[i]].Source = uint.MaxValue;
instance?.Stopped();
sfxInstances.RemoveAt(i);
i--;
}
}
//update Streaming
foreach (var item in activeStreamers)
{
item.Update();
}
foreach (var item in toRemove)
{
activeStreamers.Remove(item);
item.OnStopped();
}
toRemove.Clear();
Thread.Sleep((sfxInstances.Count > 0 || activeStreamers.Count > 0) ? 1 : 5);
}
//Delete context
Alc.alcMakeContextCurrent(IntPtr.Zero);
Alc.alcDestroyContext(ctx);
Alc.alcCloseDevice(dev);
}
void UpdateGain()
{
sound.Gain = ALUtils.LinearToAlGain(_volume) * ALUtils.DbToAlGain(attenuation);
}