/// <summary>
/// Updates internal state
/// </summary>
internal void Update()
{
if (this.Effect.GameAudio.UseReverb && !isReverbSubmixEnabled)
{
var sendFlags = this.Effect.GameAudio.UseReverbFilter ?
VoiceSendFlags.UseFilter :
VoiceSendFlags.None;
var outputVoices = new VoiceSendDescriptor[]
{
new VoiceSendDescriptor {
OutputVoice = this.Effect.GameAudio.MasteringVoice, Flags = sendFlags
},
new VoiceSendDescriptor {
OutputVoice = this.Effect.GameAudio.ReverbVoice, Flags = sendFlags
}
};
voice.SetOutputVoices(outputVoices);
isReverbSubmixEnabled = true;
}
if (this.Effect.GameAudio.UseAudio3D)
{
this.Apply3D();
}
this.SetPanOutputMatrix();
}
public void SetOutputVoices(VoiceSendDescriptor[] descriptors)
{
if (m_currentDescriptor != descriptors)
{
m_voice.SetOutputVoices(descriptors);
m_currentDescriptor = descriptors;
}
}
internal void PlatformSetReverbMix(float mix)
{
// At least for XACT we can't go over 2x the volume on the mix.
_reverbMix = MathHelper.Clamp(mix, 0, 2);
// If we have no voice then nothing more to do.
if (_voice == null)
{
return;
}
if (!(_reverbMix > 0.0f))
{
_voice.SetOutputVoices(new VoiceSendDescriptor(SoundEffect.MasterVoice));
}
else
{
_voice.SetOutputVoices(new VoiceSendDescriptor(SoundEffect.ReverbVoice),
new VoiceSendDescriptor(SoundEffect.MasterVoice));
}
UpdateOutputMatrix();
}
private void SetupVoice(AudioFormat format)
{
WaveFormat wFmt = new WaveFormat(format.SampleRate, format.BitsPerSample, format.Channels);
SourceVoice = new SourceVoice(_engine.Device, wFmt);
if (_submixer != null)
{
var vsDesc = new VoiceSendDescriptor(_submixer.SubMixerVoice);
SourceVoice.SetOutputVoices(new VoiceSendDescriptor[] { vsDesc });
}
SourceVoice.SetVolume(_volume);
}
public VoicePool(XAudio2 xAudio2, Voice masterVoice)
{
_objects = new ConcurrentDictionary <WaveFormat, ConcurrentBag <SourceVoiceEx> >();
_objectGenerator = format =>
{
var newVoice = new SourceVoice(xAudio2, format, VoiceFlags.None, 3.0f, true);
newVoice.SetOutputVoices(new[] { new VoiceSendDescriptor(masterVoice) });
var newId = Interlocked.Increment(ref _nextOperationId);
var sourceVoiceEx = new SourceVoiceEx(newVoice, Guid.NewGuid(), format, newId);
return(sourceVoiceEx);
};
}
public void NoteOn(byte num, byte key, byte velocity)
{
try
{
Instrument instrument = instrumentTable[new Tuple <byte, byte>(Bank, Instrument)];
int value = instrument.GetSampleEntry(key).Value;
Sample sample = soundData.SampleBanks[soundData.InstrumentBanks[Bank].Wsys][(short)instrument.Samples[value].Id];
AudioBuffer audioBuffer = new AudioBuffer();
audioBuffer.AudioBytes = sample.Data.Length;
audioBuffer.Stream = new DataStream(sample.Data.Length, canRead: true, canWrite: true);
audioBuffer.Stream.Write(sample.Data, 0, sample.Data.Length);
audioBuffer.PlayBegin = 0;
audioBuffer.PlayLength = 0;
audioBuffer.LoopCount = (sample.IsLooping ? 255 : 0);
audioBuffer.LoopBegin = sample.LoopStart;
audioBuffer.LoopLength = 0;
WaveFormat sourceFormat = new WaveFormat(sample.SamplesPerSecond, sample.BitsPerSample, sample.Channels);
SourceVoice sourceVoice = new SourceVoice(engine, sourceFormat, VoiceFlags.None, 1024f);
sourceVoice.SetOutputVoices(new VoiceSendDescriptor(submix));
sourceVoice.SubmitSourceBuffer(audioBuffer, null);
float num2 = XAudio2.SemitonesToFrequencyRatio((!instrument.IsPercussion) ? (key - sample.RootKey) : 0) * instrument.Samples[value].FrequenyMultiplier * instrument.FrequencyMultiplier;
sourceVoice.SetFrequencyRatio(num2);
sourceVoice.SetVolume(ValueToAmplitude(velocity));
NoteData noteData = new NoteData(sourceVoice, num2, velocity, instrument.IsPercussion);
if (instrument.IsPercussion)
{
noteData.PercussionPan = instrument.Samples[value].Pan.Value;
sbyte b = (sbyte)(noteData.PercussionPan - 63);
sourceVoice.SetOutputMatrix(1, 2, new float[2]
{
0.5f - (float)b / 127f,
0.5f + (float)b / 127f
});
}
else
{
sourceVoice.SetOutputMatrix(1, 2, outputMatrix);
}
noteData.BufferStream = audioBuffer.Stream;
noteData.Voice.Start();
voiceTable.Add(num, noteData);
sourceFormat = null;
GC.Collect();
}
catch
{
}
}
private void PlaySound(int soundID,
Emitter emitter,
float volume,
LinkedSoundList list,
ref VoiceSendDescriptor voiceSendDescriptor,
Action <IntPtr>?onFxEnd = null)
{
if (!_soundBuffer.TryGetValue(soundID, out SoundBuffer buffer))
{
return;
}
SourceVoice sourceVoice = new SourceVoice(_xAudio2, buffer.Format, VoiceFlags.None, true);
sourceVoice.SetVolume(volume);
sourceVoice.SubmitSourceBuffer(buffer.AudioBuffer, buffer.DecodedPacketsInfo);
sourceVoice.SetOutputVoices(voiceSendDescriptor);
LinkedSoundList.Sound sound = new LinkedSoundList.Sound(emitter, sourceVoice);
list.Add(sound);
sourceVoice.BufferEnd += _ =>
{
list.Remove(sound);
sourceVoice.DestroyVoice();
};
if (onFxEnd != null)
{
sourceVoice.BufferEnd += onFxEnd;
}
sourceVoice.Start();
DspSettings settings = _x3DAudio.Calculate(
_listener,
sound.Emitter,
CalculateFlags.Matrix | CalculateFlags.Doppler,
buffer.Format.Channels,
_inputChannelCount);
sound.SourceVoice.SetOutputMatrix(buffer.Format.Channels, _inputChannelCount, settings.MatrixCoefficients);
sound.SourceVoice.SetFrequencyRatio(settings.DopplerFactor);
}
/// <summary>
/// Dispose resources
/// </summary>
/// <param name="disposing">Free managed resources</param>
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
if (voice != null)
{
voice.BufferStart -= SourceVoice_BufferStart;
voice.BufferEnd -= SourceVoice_BufferEnd;
voice.LoopEnd -= SourceVoice_LoopEnd;
}
voice?.Stop(0);
voice?.FlushSourceBuffers();
if (isReverbSubmixEnabled)
{
voice?.SetOutputVoices(null);
isReverbSubmixEnabled = false;
}
voice?.DestroyVoice();
voice?.Dispose();
voice = null;
}
}
private void Apply3D(Vector3 listenerForward, Vector3 listenerUp, Vector3 listenerPosition, Vector3 listenerVelocity, Vector3 emitterForward, Vector3 emitterUp, Vector3 emitterPosition, Vector3 emitterVelocity)
{
if (!Effect.AudioManager.IsSpatialAudioEnabled)
{
throw new InvalidOperationException("Spatial audio must be enabled first.");
}
if (emitter == null)
{
emitter = new Emitter();
}
emitter.OrientFront = emitterForward;
emitter.OrientTop = emitterUp;
emitter.Position = emitterPosition;
emitter.Velocity = emitterVelocity;
emitter.DopplerScaler = SoundEffect.DopplerScale;
emitter.CurveDistanceScaler = SoundEffect.DistanceScale;
emitter.ChannelCount = Effect.Format.Channels;
//TODO: work out what ChannelAzimuths is supposed to be.
if (emitter.ChannelCount > 1)
{
emitter.ChannelAzimuths = new float[emitter.ChannelCount];
}
if (listener == null)
{
listener = new Listener();
}
listener.OrientFront = listenerForward;
listener.OrientTop = listenerUp;
listener.Position = listenerPosition;
listener.Velocity = listenerVelocity;
if (dspSettings == null)
{
dspSettings = new DspSettings(Effect.Format.Channels, Effect.AudioManager.MasteringVoice.VoiceDetails.InputChannelCount);
}
CalculateFlags flags = CalculateFlags.Matrix | CalculateFlags.Doppler | CalculateFlags.LpfDirect;
if ((Effect.AudioManager.Speakers & Speakers.LowFrequency) > 0)
{
// On devices with an LFE channel, allow the mono source data to be routed to the LFE destination channel.
flags |= CalculateFlags.RedirectToLfe;
}
if (Effect.AudioManager.IsReverbEffectEnabled)
{
flags |= CalculateFlags.Reverb | CalculateFlags.LpfReverb;
if (!isReverbSubmixEnabled)
{
VoiceSendFlags sendFlags = Effect.AudioManager.IsReverbFilterEnabled ? VoiceSendFlags.UseFilter : VoiceSendFlags.None;
VoiceSendDescriptor[] outputVoices = new VoiceSendDescriptor[]
{
new VoiceSendDescriptor {
OutputVoice = Effect.AudioManager.MasteringVoice, Flags = sendFlags
},
new VoiceSendDescriptor {
OutputVoice = Effect.AudioManager.ReverbVoice, Flags = sendFlags
}
};
voice.SetOutputVoices(outputVoices);
isReverbSubmixEnabled = true;
}
}
Effect.AudioManager.Calculate3D(listener, emitter, flags, dspSettings);
voice.SetFrequencyRatio(dspSettings.DopplerFactor);
voice.SetOutputMatrix(Effect.AudioManager.MasteringVoice, dspSettings.SourceChannelCount, dspSettings.DestinationChannelCount, dspSettings.MatrixCoefficients);
if (Effect.AudioManager.IsReverbEffectEnabled)
{
if (reverbLevels == null || reverbLevels.Length != Effect.Format.Channels)
{
reverbLevels = new float[Effect.Format.Channels];
}
for (int i = 0; i < reverbLevels.Length; i++)
{
reverbLevels[i] = dspSettings.ReverbLevel;
}
voice.SetOutputMatrix(Effect.AudioManager.ReverbVoice, Effect.Format.Channels, 1, reverbLevels);
}
if (Effect.AudioManager.IsReverbFilterEnabled)
{
FilterParameters filterDirect = new FilterParameters
{
Type = FilterType.LowPassFilter,
// see XAudio2CutoffFrequencyToRadians() in XAudio2.h for more information on the formula used here
Frequency = 2.0f * (float)Math.Sin(X3DAudio.PI / 6.0f * dspSettings.LpfDirectCoefficient),
OneOverQ = 1.0f
};
voice.SetOutputFilterParameters(Effect.AudioManager.MasteringVoice, filterDirect);
if (Effect.AudioManager.IsReverbEffectEnabled)
{
FilterParameters filterReverb = new FilterParameters
{
Type = FilterType.LowPassFilter,
// see XAudio2CutoffFrequencyToRadians() in XAudio2.h for more information on the formula used here
Frequency = 2.0f * (float)Math.Sin(X3DAudio.PI / 6.0f * dspSettings.LpfReverbCoefficient),
OneOverQ = 1.0f
};
voice.SetOutputFilterParameters(Effect.AudioManager.ReverbVoice, filterReverb);
}
}
}
