public DescriptorList(StreamReader reader)
{
List<EnvelopeDescriptor> envList = new List<EnvelopeDescriptor>();
List<FilterDescriptor> fltrList = new List<FilterDescriptor>();
List<LfoDescriptor> lfoList = new List<LfoDescriptor>();
List<GeneratorDescriptor> genList = new List<GeneratorDescriptor>();
List<CustomDescriptor> cList = new List<CustomDescriptor>();
List<string> descList = new List<string>();
while (!reader.EndOfStream)
{
string tag = ReadNextTag(reader, descList);
switch (tag)
{
case "envelope":
{
EnvelopeDescriptor env = new EnvelopeDescriptor();
env.Read(descList.ToArray());
envList.Add(env);
break;
}
case "generator":
{
GeneratorDescriptor gen = new GeneratorDescriptor();
gen.Read(descList.ToArray());
genList.Add(gen);
break;
}
case "filter":
{
FilterDescriptor fltr = new FilterDescriptor();
fltr.Read(descList.ToArray());
fltrList.Add(fltr);
break;
}
case "lfo":
{
LfoDescriptor lfo = new LfoDescriptor();
lfo.Read(descList.ToArray());
lfoList.Add(lfo);
break;
}
default:
if (!tag.Equals(string.Empty))
{
CustomDescriptor cus = new CustomDescriptor(tag, 0);
cus.Read(descList.ToArray());
cList.Add(cus);
}
break;
}
descList.Clear();
}
EnvelopeDescriptions = envList.ToArray();
FilterDescriptions = fltrList.ToArray();
LfoDescriptions = lfoList.ToArray();
GenDescriptions = genList.ToArray();
CustomDescriptions = cList.ToArray();
}
public void QuickSetup(int sampleRate, int note, float velocity, FilterDescriptor filterInfo)
{
coeffUpdateRequired = false;
cutOff = filterInfo.CutOff;
resonance = filterInfo.Resonance;
filterType = filterInfo.FilterMethod;
a1 = 0; a2 = 0; b1 = 0; b2 = 0;
m1 = 0f; m2 = 0f; m3 = 0f;
if (cutOff <= 0 || resonance <= 0)
{
filterType = FilterTypeEnum.None;
}
if (filterType != FilterTypeEnum.None)
{
cutOff *= SynthHelper.CentsToPitch((note - filterInfo.RootKey) * filterInfo.KeyTrack + (int)(velocity * filterInfo.VelTrack));
UpdateCoeff(sampleRate);
}
}
public DescriptorList(BinaryReader reader)
{
List<EnvelopeDescriptor> envList = new List<EnvelopeDescriptor>();
List<FilterDescriptor> fltrList = new List<FilterDescriptor>();
List<LfoDescriptor> lfoList = new List<LfoDescriptor>();
List<GeneratorDescriptor> genList = new List<GeneratorDescriptor>();
List<CustomDescriptor> cList = new List<CustomDescriptor>();
int count = reader.ReadInt16();
for (int x = 0; x < count; x++)
{
string id = new string(IOHelper.Read8BitChars(reader, 4));
int size = reader.ReadInt32();
switch (id.ToLower())
{
case EnvelopeDescriptor.ID:
{
EnvelopeDescriptor env = new EnvelopeDescriptor();
env.Read(reader);
envList.Add(env);
break;
}
case GeneratorDescriptor.ID:
{
GeneratorDescriptor gen = new GeneratorDescriptor();
gen.Read(reader);
genList.Add(gen);
break;
}
case FilterDescriptor.ID:
{
FilterDescriptor fltr = new FilterDescriptor();
fltr.Read(reader);
fltrList.Add(fltr);
break;
}
case LfoDescriptor.ID:
{
LfoDescriptor lfo = new LfoDescriptor();
lfo.Read(reader);
lfoList.Add(lfo);
break;
}
default:
{
CustomDescriptor cus = new CustomDescriptor(id, size);
cus.Read(reader);
cList.Add(cus);
break;
}
}
}
EnvelopeDescriptions = envList.ToArray();
FilterDescriptions = fltrList.ToArray();
LfoDescriptions = lfoList.ToArray();
GenDescriptions = genList.ToArray();
CustomDescriptions = cList.ToArray();
}
private void LoadSfzFilters(SfzRegion region)
{
FilterDescriptions = new FilterDescriptor[1];
FilterDescriptions[0] = new FilterDescriptor();
FilterDescriptions[0].FilterMethod = region.filterType;
FilterDescriptions[0].CutOff = region.cutOff;
FilterDescriptions[0].KeyTrack = region.filterKeyTrack;
FilterDescriptions[0].Resonance = (float)SynthHelper.DBtoLinear(region.resonance);
FilterDescriptions[0].RootKey = region.filterKeyCenter;
FilterDescriptions[0].VelTrack = region.filterVelTrack;
}
private void LoadFilter(Sf2Region region)
{
fltr = new FilterDescriptor();
fltr.FilterMethod = FilterTypeEnum.BiquadLowpass;
fltr.CutOff = (float)SynthHelper.KeyToFrequency(region.Generators[(int)GeneratorEnum.InitialFilterCutoffFrequency] / 100.0, 69);
fltr.Resonance = (float)SynthHelper.DBtoLinear(region.Generators[(int)GeneratorEnum.InitialFilterQ] / 10.0);
}
public override void Load(DescriptorList description, AssetManager assets)
{
//read in sfz params
CustomDescriptor sfzConfig = description.FindCustomDescriptor("sfzi");
exTarget = (int)sfzConfig.Objects[0];
exGroup = (int)sfzConfig.Objects[1];
sfzVolume = (float)sfzConfig.Objects[2];
sfzPan = new PanComponent((float)sfzConfig.Objects[3], PanFormulaEnum.Neg3dBCenter);
ampKeyTrack = (float)sfzConfig.Objects[4];
ampRootKey = (byte)sfzConfig.Objects[5];
ampVelTrack = (float)sfzConfig.Objects[6];
//read in the generator info
GeneratorDescriptor gdes = description.GenDescriptions[0];
if (gdes.SamplerType != WaveformEnum.SampleData)
throw new Exception("Sfz can only support sample data generators.");
gen = gdes.ToGenerator(assets);
//read in the envelope info
ptch_env = description.EnvelopeDescriptions[0];
fltr_env = description.EnvelopeDescriptions[1];
amp_env = description.EnvelopeDescriptions[2];
//read in the lfo info
ptch_lfo = description.LfoDescriptions[0];
fltr_lfo = description.LfoDescriptions[1];
amp_lfo = description.LfoDescriptions[2];
//read in the filter info
fltr = description.FilterDescriptions[0];
}
