bool AllocateSource(out uint source, int priority)
{
while (!Ready)
{
}
if (freeSources.Count > 0)
{
return(freeSources.TryDequeue(out source));
}
else
{
//Try and stop playing oldest lower priority source
for (int i = 0; i < sfxInstances.Count; i++)
{
var info = Instances[sfxInstances[i]];
if (info.Instance != null && info.Instance.Priority <= priority)
{
if (info.Source != uint.MaxValue)
{
Al.alSourceStopv(1, ref info.Source);
Al.alSourcei(info.Source, Al.AL_BUFFER, 0);
info.Instance.Stopped();
}
Instances[sfxInstances[i]].Source = uint.MaxValue;
sfxInstances.RemoveAt(i);
source = info.Source;
return(true);
}
}
source = uint.MaxValue;
return(false);
}
}
static void SetPropertiesAl(uint src, ref SourceProperties prop, int flags)
{
if ((flags & FLAG_POS) == FLAG_POS)
{
Al.alSourcei(src, Al.AL_SOURCE_RELATIVE, prop.Is3D ? 0 : 1);
Al.alSource3f(src, Al.AL_POSITION, prop.Position.X, prop.Position.Y, prop.Position.Z);
}
if ((flags & FLAG_VEL) == FLAG_VEL)
{
Al.alSource3f(src, Al.AL_VELOCITY, prop.Velocity.X, prop.Velocity.Y, prop.Velocity.Z);
}
if ((flags & FLAG_DIRECTION) == FLAG_DIRECTION)
{
Al.alSource3f(src, Al.AL_DIRECTION, prop.Direction.X, prop.Direction.Y, prop.Direction.Z);
}
if ((flags & FLAG_GAIN) == FLAG_GAIN)
{
Al.alSourcef(src, Al.AL_GAIN, prop.Gain);
}
if ((flags & FLAG_PITCH) == FLAG_PITCH)
{
Al.alSourcef(src, Al.AL_PITCH, prop.Pitch);
}
if ((flags & FLAG_DIST) == FLAG_DIST)
{
Al.alSourcef(src, Al.AL_REFERENCE_DISTANCE, prop.ReferenceDistance);
Al.alSourcef(src, Al.AL_MAX_DISTANCE, prop.MaxDistance);
}
if ((flags & FLAG_CONE) == FLAG_CONE)
{
Al.alSourcef(src, Al.AL_CONE_INNER_ANGLE, prop.ConeInnerAngle);
Al.alSourcef(src, Al.AL_CONE_OUTER_ANGLE, prop.ConeOuterAngle);
Al.alSourcef(src, Al.AL_CONE_OUTER_GAIN, prop.ConeOuterGain);
}
}
public void Play(bool loop = false, float timeOffset = 0)
{
if (ID == uint.MaxValue)
{
throw new ObjectDisposedException("SoundInstance");
}
var props = properties;
if (!gainSet)
{
UpdateAttenuation();
}
dirtyFlags = 0;
Playing = true;
man.Do(() =>
{
var src = man.AM_GetInstanceSource(ID, true);
if (src == uint.MaxValue)
{
dirtyFlags = int.MaxValue;
Playing = false;
return;
}
SetPropertiesAl(src, ref props, int.MaxValue);
if (timeOffset > 0)
{
Al.alSourcef(src, Al.AL_SEC_OFFSET, timeOffset);
}
Al.alSourcei(src, Al.AL_BUFFER, (int)data.ID);
Al.alSourcei(src, Al.AL_LOOPING, loop ? 1 : 0);
Al.alSourcePlay(src);
man.AM_AddInstance(ID);
});
}
public void SetGain(float gain)
{
if (Active)
{
Al.alSourcef(ID, Al.AL_GAIN, gain);
}
Al.CheckErrors();
}
public void SetAttenuation(float attenuation)
{
if (Active)
{
Al.alSourcef(ID, Al.AL_GAIN, ALUtils.DbToAlGain(attenuation) * man.GetVolume(SoundType.Sfx));
}
Al.CheckErrors();
}
public void SetPitch(float pitch)
{
if (Active)
{
Al.alSourcef(ID, Al.AL_PITCH, pitch);
}
Al.CheckErrors();
}
public void SetVelocity(Vector3 pos)
{
if (Active)
{
Al.alSource3f(ID, Al.AL_VELOCITY, pos.X, pos.Y, pos.Z);
}
Al.CheckErrors();
}
public void Stop()
{
if (Active)
{
Al.alSourceStopv(1, ref ID);
Al.CheckErrors();
Active = false;
}
}
public static void CheckErrors()
{
int error;
if ((error = Al.alGetError()) != Al.AL_NO_ERROR)
{
throw new InvalidOperationException(Al.GetString(error));
}
}
public void StopAllSfx()
{
Actions.Enqueue(() =>
{
foreach (var sfx in sfxInstances)
{
Al.alSourceStopv(1, ref sfx.ID);
}
sfxInstances.Clear();
});
}
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);
}
public void Stop()
{
uint _id = ID;
Playing = false;
man.Do(() =>
{
var src = man.AM_GetInstanceSource(_id, false);
if (src != uint.MaxValue)
{
Al.alSourceStopv(1, ref src);
}
});
}
public void SetPosition(Vector3 pos)
{
if (float.IsNaN(pos.X) || float.IsNaN(pos.Y) || float.IsNaN(pos.Z))
{
//NaN ??? - Exit
FLLog.Error("Sound", "Attempted to set NaN pos");
return;
}
if (Active)
{
Al.alSource3f(ID, Al.AL_POSITION, pos.X, pos.Y, pos.Z);
}
Al.CheckErrors();
}
void Cleanup()
{
playing = false;
Al.alSourceStopv(1, ref ID);
int p = 0;
Al.alGetSourcei(ID, Al.AL_BUFFERS_PROCESSED, out p);
for (int i = 0; i < p; i++)
{
uint buf = 0;
Al.alSourceUnqueueBuffers(ID, 1, ref buf);
manager.Buffers.Enqueue(buf);
}
sound.Data.Seek(0, SeekOrigin.Begin);
}
public void PlaySound(SoundData data, float volume = 1f)
{
uint src;
if (!AllocateSource(out src))
{
return;
}
Al.alSourcei(src, Al.AL_BUFFER, (int)data.ID);
Al.alSourcef(src, Al.AL_GAIN, volume);
Al.alSourcePlay(src);
toAdd.Enqueue(new SoundEffectInstance()
{
ID = src
});
}
public void Update()
{
if (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;
if (src == uint.MaxValue)
{
continue;
}
int state;
Al.alGetSourcei(src, Al.AL_SOURCE_STATE, out state);
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
//Task.Run(() =>
//{
foreach (var item in activeStreamers)
{
item.Update();
}
foreach (var item in toRemove)
{
activeStreamers.Remove(item);
item.OnStopped();
}
toRemove.Clear();
//});
}
}
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 void PlaySound(Stream stream, float volume = 1f)
{
uint src;
if (!AllocateSource(out src))
{
return;
}
var data = AllocateData();
data.LoadStream(stream);
Al.alSourcei(src, Al.AL_BUFFER, (int)data.ID);
Al.alSourcef(src, Al.AL_GAIN, volume);
Al.alSourcePlay(src);
toAdd.Enqueue(new SoundEffectInstance()
{
ID = src, Dispose = data
});
}
public void ReleaseAllSfx()
{
actions.Enqueue(() =>
{
foreach (var sfx in sfxInstances)
{
var id = Instances[sfx].Source;
if (id != uint.MaxValue)
{
Al.alSourceStopv(1, ref id);
Al.alSourcei(id, Al.AL_BUFFER, 0);
freeSources.Enqueue(id);
Instances[sfx].Source = uint.MaxValue;
}
Instances[sfx].Instance?.Stopped();
Instances[sfx].Instance?.Dispose(true);
}
sfxInstances.Clear();
});
}
public void LoadStream(Stream stream)
{
using (var snd = SoundLoader.Open(stream))
{
byte[] data;
if (snd.Size != -1)
{
data = new byte[snd.Size];
System.Diagnostics.Trace.Assert(snd.Data.Read(data, 0, snd.Size) == snd.Size);
}
else
{
using (var mem = new MemoryStream())
{
snd.Data.CopyTo(mem);
data = mem.GetBuffer();
}
}
Al.BufferData(ID, snd.Format, data, data.Length, snd.Frequency);
}
}
public SoundInstance PlaySound(SoundData data, bool loop = false, float volume = 1f, float minD = -1, float maxD = -1, Vector3?posv = null, SoundData dispose = null, Action onFinish = null)
{
uint src;
if (!AllocateSource(out src))
{
return(null);
}
Al.alSourcei(src, Al.AL_BUFFER, (int)data.ID);
Al.alSourcef(src, Al.AL_GAIN, volume);
Al.alSourcei(src, Al.AL_LOOPING, loop ? 1 : 0);
if (posv != null)
{
Al.alSourcei(src, Al.AL_SOURCE_RELATIVE, 0);
var pos = posv.Value;
Al.alSource3f(src, Al.AL_POSITION, pos.X, pos.Y, pos.Z);
}
else
{
Al.alSourcei(src, Al.AL_SOURCE_RELATIVE, 1);
Al.alSource3f(src, Al.AL_POSITION, 0, 0, 0);
}
if (minD != -1 && maxD != -1)
{
Al.alSourcef(src, Al.AL_REFERENCE_DISTANCE, minD);
Al.alSourcef(src, Al.AL_MAX_DISTANCE, maxD);
}
Al.alSourcePlay(src);
var inst = new SoundInstance(src)
{
Dispose = dispose, OnFinish = onFinish
};
toAdd.Enqueue(inst);
return(inst);
}
public bool Update()
{
bool hadData = dataleft;
//Do things
if (dataleft)
{
int processed;
Al.alGetSourcei(ID, Al.AL_BUFFERS_PROCESSED, out processed);
var bytes = ArrayPool <byte> .Shared.Rent(POOL_BUFFER_SIZE);
for (int i = 0; i < processed; i++)
{
uint buf = 0;
Al.alSourceUnqueueBuffers(ID, 1, ref buf);
int read = Read(bytes, sound.Data);
if (read != 0)
{
try
{
Al.BufferData(buf, sound.Format, bytes, read, sound.Frequency);
}
catch (Exception)
{
FLLog.Error("AL", $"Error in source {info}");
throw;
}
Al.alSourceQueueBuffers(ID, 1, ref buf);
if (read < POOL_BUFFER_SIZE)
{
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, POOL_BUFFER_SIZE);
Al.BufferData(buf, sound.Format, bytes, read, sound.Frequency);
Al.alSourceQueueBuffers(ID, 1, ref buf);
}
else
{
dataleft = false;
manager.Buffers.Enqueue(buf);
break;
}
}
}
ArrayPool <byte> .Shared.Return(bytes);
}
//Return buffers
int val;
Al.alGetSourcei(ID, Al.AL_SOURCE_STATE, out val);
if (val != Al.AL_PLAYING && val != Al.AL_PAUSED)
{
if (hadData)
{
FLLog.Warning("Audio", "Buffer underrun");
Al.alSourcePlay(ID);
}
else
{
CleanupDelayed();
return(false);
}
}
return(true);
}
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);
}
public void SetListenerPosition(Vector3 pos)
{
Al.alListener3f(Al.AL_POSITION, pos.X, pos.Y, pos.Z);
}
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);
}
void UpdateThread()
{
//Init context
IntPtr dev = Alc.alcOpenDevice(null);
IntPtr 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_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)
{
SoundEffectInstance 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);
if (state != Al.AL_PLAYING)
{
if (sfxInstances[i].Dispose != null)
{
sfxInstances[i].Dispose.Dispose();
}
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();
}
}
Thread.Sleep(5);
}
//Delete context
Alc.alcMakeContextCurrent(IntPtr.Zero);
Alc.alcDestroyContext(ctx);
Alc.alcCloseDevice(ctx);
}
internal SoundData(AudioManager manager)
{
this.manager = manager;
ID = Al.GenBuffer();
}
public void Dispose()
{
Al.alDeleteBuffers(1, ref ID);
}
