public SampleDataAsset(int size, BinaryReader reader)
{
assetName = IOHelper.Read8BitString(reader, 20);
sampleRate = reader.ReadInt32();
rootKey = reader.ReadInt16();
tune = reader.ReadInt16();
loopStart = reader.ReadDouble();
loopEnd = reader.ReadDouble();
byte bits = reader.ReadByte();
byte chans = reader.ReadByte();
byte[] data = reader.ReadBytes(size - 46);
if (chans != audioChannels) //reformat to supported channels
data = WaveHelper.GetChannelPcmData(data, bits, chans, audioChannels);
sampleData = PcmData.Create(bits, data, true);
start = 0;
end = sampleData.Length;
}
public SampleGenerator(GeneratorDescriptor description, AssetManager assets)
: base(description)
{
SampleDataAsset sample = assets.FindSample(IOHelper.GetFileNameWithoutExtension(description.AssetName));
if (sample == null)
throw new Exception("Could not find asset: (" + description.AssetName + ").");
data = sample.SampleData;
freq = sample.SampleRate;
if (end < 0)
end = sample.End;
if (start < 0)
start = sample.Start;
if (loopEnd < 0)
{
if (sample.LoopEnd < 0)
loopEnd = end;
else
loopEnd = sample.LoopEnd;
}
if (loopStart < 0)
{
if (sample.LoopStart < 0)
loopStart = start;
else
loopStart = sample.LoopStart;
}
if (genPeriod < 0)
genPeriod = 1;
if (root < 0)
{
root = sample.RootKey;
if (tuneCents == 0)
tuneCents = sample.Tune;
}
//check sample end and loop end for consistency
if (end > data.Length)
end = data.Length;
if (loopEnd > end)
loopEnd = end;
}
public SampleDataAsset(string name, WaveFile wave)
{
if (name == null)
throw new ArgumentNullException("An asset must be given a valid name.");
assetName = name;
SamplerChunk smpl = wave.FindChunk<SamplerChunk>();
if (smpl != null)
{
sampleRate = (int)(44100.0 * (1.0 / (smpl.SamplePeriod / 22675.0)));
rootKey = (short)smpl.UnityNote;
tune = (short)(smpl.PitchFraction * 100);
if (smpl.Loops.Length > 0)
{
//--WARNING ASSUMES: smpl.Loops[0].Type == SamplerChunk.SampleLoop.LoopType.Forward
loopStart = smpl.Loops[0].Start;
loopEnd = smpl.Loops[0].End + smpl.Loops[0].Fraction + 1;
}
}
else
{
sampleRate = wave.Format.SampleRate;
}
byte[] data = wave.Data.RawSampleData;
if (wave.Format.ChannelCount != audioChannels) //reformat to supported channels
data = WaveHelper.GetChannelPcmData(data, wave.Format.BitsPerSample, wave.Format.ChannelCount, audioChannels);
sampleData = PcmData.Create(wave.Format.BitsPerSample, data, true);
start = 0;
end = sampleData.Length;
}
public SampleDataAsset(SampleHeader sample, SoundFontSampleData sampleData)
{
this.assetName = sample.Name;
this.sampleRate = sample.SampleRate;
this.rootKey = sample.RootKey;
this.tune = sample.Tune;
this.start = sample.Start;
this.end = sample.End;
this.loopStart = sample.StartLoop;
this.loopEnd = sample.EndLoop;
this.sampleData = PcmData.Create(sampleData.BitsPerSample, sampleData.SampleData, true);
}
