public override bool Equals(object obj)
{
if (obj is NoteRegistryKey)
{
NoteRegistryKey r = (NoteRegistryKey)obj;
return(r.channel == this.channel && r.note == this.note);
}
return(false);
}
public void NoteOff(int channel, int note)
{
NoteRegistryKey r = new NoteRegistryKey((byte)channel, (byte)note);
List <Voice> voice;
if (keyRegistry.TryGetValue(r, out voice))
{
if (voice.Count > 0)
{
voice[0].Stop();
voice.RemoveAt(0);
}
}
}
public void NoteOn(int channel, int note, int velocity, int program)
{
// Grab a free voice
Voice freeVoice = getFreeVoice();
if (freeVoice == null)
{
// If there are no free voices steal an active one.
freeVoice = getUsedVoice(activeVoices.First.Value.getKey());
// If there are no voices to steal then leave this method.
if (freeVoice == null)
{
return;
}
}
// Create a key for this event
NoteRegistryKey r = new NoteRegistryKey((byte)channel, (byte)note);
// Get the correct instrument depending if it is a drum or not
if (channel == 9)
{
freeVoice.setInstrument(bank.getInstrument(program, true));
}
else
{
freeVoice.setInstrument(bank.getInstrument(program, false));
}
// Check if key exists
if (keyRegistry.ContainsKey(r))
{
if (keyRegistry[r].Count >= maxnotepoly)
{
keyRegistry[r][0].Stop();
keyRegistry[r].RemoveAt(0);
}
keyRegistry[r].Add(freeVoice);
}
else//The first noteOn of it's own type will create a list for multiple occurrences
{
List <Voice> Vlist = new List <Voice>(maxnotepoly);
Vlist.Add(freeVoice);
keyRegistry.Add(r, Vlist);
}
freeVoice.Start(channel, note, velocity);
activeVoices.AddLast(freeVoice);
}
private Voice getUsedVoice(NoteRegistryKey r)
{
List <Voice> voicelist;
Voice voice;
if (keyRegistry.TryGetValue(r, out voicelist))
{
if (voicelist.Count > 0)
{
voicelist[0].StopImmediately();
voice = voicelist[0];
voicelist.RemoveAt(0);
activeVoices.Remove(voice);
return(voice);
}
}
return(null);
}
public bool Equals(NoteRegistryKey obj)
{
return(obj.channel == this.channel && obj.note == this.note);
}
