public Sf2Synth(Sf2File file, Table table, int voiceCount)
{
this.file = file;
this.table = table;
masterGain = 1;
this.voiceCount = voiceCount;
voices = new Voice[voiceCount];
for (int i = 0; i < voiceCount; i += 1)
{
voices[i].Init(i, file.data, table);
}
#if MIDIF_DEBUG_VISUALIZER
WaveVisualizer.Request(0, 1024);
WaveVisualizer.Request(1, 1024);
WaveVisualizer.Request(2, 1024);
WaveVisualizer.Request(3, 1024);
WaveVisualizer.Request(4, 1024);
WaveVisualizer.Request(5, 1024);
#endif
Reset();
}
public void NoteOn(int channel, byte note, byte velocity)
{
// if (channel != 10) return;
NoteOff(channel, note, 0);
if (velocity == 0)
{
UnityEngine.Debug.LogWarning("Note on with 0 velocity");
return;
}
var preset = file.presets[channels[channel].presetIndex];
for (int i = 0, endI = preset.presetZones.Length; i < endI; i += 1)
{
var presetZone = preset.presetZones[i];
if (!presetZone.zone.Contains(note, velocity))
{
continue;
}
var instrument = presetZone.instrument;
for (int j = 0, endJ = instrument.instrumentZones.Length; j < endJ; j += 1)
{
var instrumentZone = instrument.instrumentZones[j];
if (!instrumentZone.zone.Contains(note, velocity))
{
continue;
}
// if (instrumentZone.sampleHeader.sampleName != "Stacked Saw-C6") continue;
// Console.Log("synth noteon", note, velocity, "preset", preset.presetName, "instrument", instrument.instName, "sample", instrumentZone.sampleHeader.sampleName);
var zone = Sf2File.GetAppliedZone(instrument.globalZone, instrumentZone.zone, preset.globalZone, presetZone.zone);
int k = firstFreeVoice;
if (k == -1)
{
// UnityEngine.Debug.LogFormat("Not enough notes active {0} free {1}", CountVoices(firstActiveVoice), CountVoices(firstFreeVoice));
// return;
// find the oldest active voice and move it to front
for (k = firstActiveVoice; voices[voices[k].next].next != -1; k = voices[k].next)
{
;
}
int next = voices[k].next;
voices[k].next = -1;
k = next;
voices[k].next = firstActiveVoice;
firstActiveVoice = k;
}
else
{
firstFreeVoice = voices[k].next;
voices[k].next = firstActiveVoice;
firstActiveVoice = k;
}
voices[k].note = note;
voices[k].velocity = velocity;
voices[k].channel = channel;
voices[k].On(instrumentZone.sampleHeader, zone);
UpdateVoicePitch(k);
UpdateVoiceGain(k);
}
}
}
