public void NoteOffAll(bool immediate)
{
var node = _voiceManager.ActiveVoices.First;
if (immediate)
{//if immediate ignore hold pedals and clear the entire registry
_voiceManager.ClearRegistry();
while (node != null)
{
node.Value.StopImmediately();
var delnode = node;
node = node.Next;
_voiceManager.ActiveVoices.Remove(delnode);
_voiceManager.FreeVoices.AddFirst(delnode.Value);
}
}
else
{//otherwise we have to check for hold pedals and double check the registry before removing the voice
while (node != null)
{
VoiceParameters voiceParams = node.Value.VoiceParams;
if (voiceParams.State == VoiceStateEnum.Playing)
{
//if hold pedal is enabled do not stop the voice
if (_synthChannels[voiceParams.Channel].HoldPedal)
{
voiceParams.NoteOffPending = true;
}
else
{
node.Value.Stop();
_voiceManager.RemoveVoiceFromRegistry(node.Value);
}
}
node = node.Next;
}
}
}
public Voice()
{
VoiceParams = new VoiceParameters();
}
public Voice()
{
VoiceParams = new VoiceParameters();
}
public abstract void Process(VoiceParameters voiceparams, int startIndex, int endIndex);
public abstract void Stop(VoiceParameters voiceparams);
public override void Stop(VoiceParameters voiceparams)
{
gen.Release(voiceparams.GeneratorParams[0]);
if (gen.LoopMode != LoopMode.OneShot)
{
voiceparams.Envelopes[0].Release(SynthConstants.DenormLimit);
voiceparams.Envelopes[1].ReleaseSf2VolumeEnvelope();
}
}
public abstract bool Start(VoiceParameters voiceparams);
public override bool Start(VoiceParameters voiceparams)
{
int note = keyOverride > -1 ? keyOverride : voiceparams.Note;
int vel = velOverride > -1 ? velOverride : voiceparams.Velocity;
//setup generator
voiceparams.GeneratorParams[0].QuickSetup(gen);
//setup envelopes
voiceparams.Envelopes[0].QuickSetupSf2(voiceparams.SynthParams.Synth.SampleRate, note, keynumToModEnvHold, keynumToModEnvDecay, false, mod_env);
voiceparams.Envelopes[1].QuickSetupSf2(voiceparams.SynthParams.Synth.SampleRate, note, keynumToVolEnvHold, keynumToVolEnvDecay, true, vel_env);
//setup filter
//voiceparams.pData[0].int1 = iniFilterFc - (int)(2400 * CalculateModulator(SourceTypeEnum.Linear, TransformEnum.Linear, DirectionEnum.MaxToMin, PolarityEnum.Unipolar, voiceparams.velocity, 0, 127));
//if (iniFilterFc >= 13500 && fltr.Resonance <= 1)
voiceparams.Filters[0].Disable();
//else
// voiceparams.filters[0].QuickSetup(voiceparams.synthParams.synth.SampleRate, note, 1f, fltr);
//setup lfos
voiceparams.Lfos[0].QuickSetup(voiceparams.SynthParams.Synth.SampleRate, mod_lfo);
voiceparams.Lfos[1].QuickSetup(voiceparams.SynthParams.Synth.SampleRate, vib_lfo);
//calculate initial pitch
voiceparams.PitchOffset = (note - gen.RootKey) * gen.KeyTrack + gen.Tune;
voiceparams.PitchOffset += (int)(100.0 * (voiceparams.SynthParams.MasterCoarseTune + (voiceparams.SynthParams.MasterFineTune.Combined - 8192.0) / 8192.0));
//calculate initial volume
voiceparams.VolOffset = initialAttn;
voiceparams.VolOffset -= 96.0f * (float)CalculateModulator(SourceTypeEnum.Concave, TransformEnum.Linear, DirectionEnum.MaxToMin, PolarityEnum.Unipolar, voiceparams.Velocity, 0, 127);
voiceparams.VolOffset -= 96.0f * (float)CalculateModulator(SourceTypeEnum.Concave, TransformEnum.Linear, DirectionEnum.MaxToMin, PolarityEnum.Unipolar, voiceparams.SynthParams.Volume.Coarse, 0, 127);
//check if we have finished before we have begun
return voiceparams.GeneratorParams[0].CurrentState != GeneratorState.Finished && voiceparams.Envelopes[1].CurrentStage != EnvelopeState.None;
}
public override void Process(VoiceParameters voiceparams, int startIndex, int endIndex)
{
//--Base pitch calculation
var basePitchFrequency = SynthHelper.CentsToPitch(voiceparams.SynthParams.CurrentPitch)*gen.Frequency;
var pitchWithBend = basePitchFrequency*SynthHelper.CentsToPitch(voiceparams.PitchOffset);
var basePitch = pitchWithBend / voiceparams.SynthParams.Synth.SampleRate;
float baseVolume = voiceparams.SynthParams.Synth.MasterVolume * voiceparams.SynthParams.CurrentVolume * voiceparams.SynthParams.Synth.MixGain;
//--Main Loop
for (int x = startIndex; x < endIndex; x += SynthConstants.DefaultBlockSize * voiceparams.SynthParams.Synth.AudioChannels)
{
voiceparams.Envelopes[0].Increment(SynthConstants.DefaultBlockSize);
voiceparams.Envelopes[1].Increment(SynthConstants.DefaultBlockSize);
voiceparams.Lfos[0].Increment(SynthConstants.DefaultBlockSize);
voiceparams.Lfos[1].Increment(SynthConstants.DefaultBlockSize);
//--Calculate pitch and get next block of samples
gen.GetValues(voiceparams.GeneratorParams[0], voiceparams.BlockBuffer, basePitch *
SynthHelper.CentsToPitch((int)(voiceparams.Envelopes[0].Value * modEnvToPitch +
voiceparams.Lfos[0].Value * modLfoToPitch + voiceparams.Lfos[1].Value * vibLfoToPitch)));
//--Filter
if (voiceparams.Filters[0].Enabled)
{
double centsFc = voiceparams.PData[0].Int1 + voiceparams.Lfos[0].Value * modLfoToFilterFc + voiceparams.Envelopes[0].Value * modEnvToFilterFc;
if (centsFc > 13500)
centsFc = 13500;
voiceparams.Filters[0].CutOff = SynthHelper.KeyToFrequency(centsFc / 100.0, 69);
if (voiceparams.Filters[0].CoeffNeedsUpdating)
voiceparams.Filters[0].ApplyFilterInterp(voiceparams.BlockBuffer, voiceparams.SynthParams.Synth.SampleRate);
else
voiceparams.Filters[0].ApplyFilter(voiceparams.BlockBuffer);
}
//--Volume calculation
float volume = (float)SynthHelper.DBtoLinear(voiceparams.VolOffset + voiceparams.Envelopes[1].Value + voiceparams.Lfos[0].Value * modLfoToVolume) * baseVolume;
//--Mix block based on number of channels
if (voiceparams.SynthParams.Synth.AudioChannels == 2)
voiceparams.MixMonoToStereoInterp(x,
volume * pan.Left * voiceparams.SynthParams.CurrentPan.Left,
volume * pan.Right * voiceparams.SynthParams.CurrentPan.Right);
else
voiceparams.MixMonoToMonoInterp(x, volume);
//--Check and end early if necessary
if ((voiceparams.Envelopes[1].CurrentStage > EnvelopeState.Hold && volume <= SynthConstants.NonAudible) || voiceparams.GeneratorParams[0].CurrentState == GeneratorState.Finished)
{
voiceparams.State = VoiceStateEnum.Stopped;
return;
}
}
}
public override void Stop(VoiceParameters voiceparams)
{
}
public override void Process(VoiceParameters voiceparams, int startIndex, int endIndex)
{
}
public override bool Start(VoiceParameters voiceparams)
{
return false;
}