public M4AWrappedKeySplit(M4AVoiceEntry keySplit) : base(keySplit)
{
try
{
Table = VoiceTable.LoadTable <M4AVoiceTable>(keySplit.Address - ROM.Pak, true);
var keys = ROM.Instance.Reader.ReadBytes(128, keySplit.Keys - ROM.Pak);
var loading = new List <Triple <byte, byte, byte> >(); // Key, min, max
int prev = -1;
for (int i = 0; i < 128; i++)
{
byte a = keys[i];
byte bi = (byte)i;
if (prev == a)
{
loading[loading.Count - 1].Item3 = bi;
}
else
{
prev = a;
loading.Add(new Triple <byte, byte, byte>(a, bi, bi));
}
}
Keys = loading.ToArray();
}
catch
{
Table = null;
Keys = null;
}
}
public M4AWrappedDrum(M4AVoiceEntry drum) : base(drum)
{
try
{
Table = VoiceTable.LoadTable <M4AVoiceTable>(drum.Address - ROM.Pak, true);
}
catch
{
Table = null;
}
}
public M4AWrappedDirect(M4AVoiceEntry direct) : base(direct) => Sample = new M4AWrappedSample(direct.Address - ROM.Pak);
void AddPSG(M4AVoiceEntry entry, byte low = 0, byte high = 0x7F)
{
int sample;
M4AVoiceType type = (M4AVoiceType)(entry.Type & 0x7);
if (type == M4AVoiceType.Square1 || type == M4AVoiceType.Square2)
{
sample = (int)entry.SquarePattern;
}
else if (type == M4AVoiceType.Wave)
{
sample = AddWave(entry.Address - ROM.Pak);
}
else if (type == M4AVoiceType.Noise)
{
sample = (int)entry.NoisePattern + 4;
}
else
{
return;
}
sf2.AddInstrumentBag();
high = Math.Min((byte)0x7F, high);
if (!(low == 0 && high == 0x7F))
{
sf2.AddInstrumentGenerator(SF2Generator.KeyRange, new SF2GeneratorAmount {
LowByte = low, HighByte = high
});
}
// ADSR
if (entry.ADSR.A != 0)
{
// Compute attack time - the sound engine is called 60 times per second
// and adds "attack" to envelope every time the engine is called
double att_time = entry.ADSR.A / 5d;
double att = 1200 * Math.Log(att_time, 2);
sf2.AddInstrumentGenerator(SF2Generator.AttackVolEnv, new SF2GeneratorAmount {
Amount = (short)att
});
}
if (entry.ADSR.S != 15)
{
double sus;
// Compute attenuation in cB if sustain is non-zero
if (entry.ADSR.S != 0)
{
sus = 100 * Math.Log(15d / entry.ADSR.S);
}
// Special case where attenuation is infinite -> use max value
else
{
sus = 1000;
}
sf2.AddInstrumentGenerator(SF2Generator.SustainVolEnv, new SF2GeneratorAmount {
Amount = (short)sus
});
double dec_time = entry.ADSR.D / 5d;
double dec = 1200 * Math.Log(dec_time + 1, 2);
sf2.AddInstrumentGenerator(SF2Generator.DecayVolEnv, new SF2GeneratorAmount {
Amount = (short)dec
});
}
if (entry.ADSR.R != 0)
{
double rel_time = entry.ADSR.R / 5d;
double rel = 1200 * Math.Log(rel_time, 2);
sf2.AddInstrumentGenerator(SF2Generator.ReleaseVolEnv, new SF2GeneratorAmount {
Amount = (short)rel
});
}
if (type == M4AVoiceType.Noise && entry.Panpot != 0)
{
sf2.AddInstrumentGenerator(SF2Generator.Pan, new SF2GeneratorAmount {
Amount = (short)((entry.Panpot - 0xC0) * (500d / 0x80))
});
}
sf2.AddInstrumentGenerator(SF2Generator.SampleModes, new SF2GeneratorAmount {
Amount = 1
});
sf2.AddInstrumentGenerator(SF2Generator.SampleID, new SF2GeneratorAmount {
Amount = (short)sample
});
}
