void ProcessNormal(float[] buffer, int samplesPerBuffer, ProcArgs pargs)
{
float GetSample(int position)
{
position += sample.GetOffset();
return((sample.bUnsigned ? ROM.Instance.Reader.ReadByte(position) - 0x80 : ROM.Instance.Reader.ReadSByte(position)) / (float)0x80);
}
int bufPos = 0;
do
{
float baseSamp = GetSample(pos);
float deltaSamp;
if (pos + 1 >= sample.Length)
{
deltaSamp = sample.bLoop ? GetSample(sample.LoopPoint) - baseSamp : 0;
}
else
{
deltaSamp = GetSample(pos + 1) - baseSamp;
}
float finalSamp = baseSamp + deltaSamp * interPos;
buffer[bufPos++] += finalSamp * pargs.LeftVol;
buffer[bufPos++] += finalSamp * pargs.RightVol;
pargs.LeftVol += pargs.LeftVolStep;
pargs.RightVol += pargs.RightVolStep;
interPos += pargs.InterStep;
int posDelta = (int)interPos;
interPos -= posDelta;
pos += posDelta;
if (pos >= sample.Length)
{
if (sample.bLoop)
{
pos = sample.LoopPoint;
}
else
{
Stop();
break;
}
}
} while (--samplesPerBuffer > 0);
}
public void Init(byte ownerIdx, Note note, ADSR adsr, WrappedSample sample, byte vol, sbyte pan, int pitch, bool bFixed)
{
State = ADSRState.Initializing;
pos = 0; processStep = 0; interPos = 0;
OwnerIdx = ownerIdx;
Note = note;
this.adsr = adsr;
this.sample = sample;
this.bFixed = bFixed;
bGoldenSun = (ROM.Instance.Game.Engine.HasGoldenSunSynths && sample.bLoop && sample.LoopPoint == 0 && sample.Length == 0);
if (bGoldenSun)
{
gsPSG = ROM.Instance.Reader.ReadObject <GoldenSunPSG>(sample.GetOffset());
}
SetVolume(vol, pan);
SetPitch(pitch);
}
