public void GetSamplesSync(out short[] samples, out int nsamp)
{
int nsampin = framebuffer.SoundBufferByteLength;
unsafe
{
fixed(byte *src = framebuffer.SoundBuffer)
{
for (int i = 0; i < nsampin; i++)
{
// the buffer values don't really get very large at all,
// so this doesn't overflow
short s = (short)(src[i] * 200);
resampler.EnqueueSample(s, s);
}
}
}
resampler.GetSamplesSync(out samples, out nsamp);
dcfilter.PushThroughSamples(samples, nsamp * 2);
}
public void Flush()
{
while (cachedCycles > 0)
{
// process voices and envelopes
voices[0].ExecutePhase2();
voices[1].ExecutePhase2();
voices[2].ExecutePhase2();
envelopes[0].ExecutePhase2();
envelopes[1].ExecutePhase2();
envelopes[2].ExecutePhase2();
// process sync
for (int i = 0; i < 3; i++)
{
voices[i].Synchronize(voices[syncNextTable[i]], voices[syncPrevTable[i]]);
}
// get output
voiceOutput[0] = voices[0].Output(voices[2]);
voiceOutput[1] = voices[1].Output(voices[0]);
voiceOutput[2] = voices[2].Output(voices[1]);
envelopeOutput[0] = envelopes[0].Level;
envelopeOutput[1] = envelopes[1].Level;
envelopeOutput[2] = envelopes[2].Level;
mixer = ((voiceOutput[0] * envelopeOutput[0]) >> 7);
mixer += ((voiceOutput[1] * envelopeOutput[1]) >> 7);
mixer += ((voiceOutput[2] * envelopeOutput[2]) >> 7);
mixer = (mixer * volume) >> 4;
sample = (short)mixer;
resampler.EnqueueSample(sample, sample);
cachedCycles--;
}
}
private void snes_audio_sample(ushort left, ushort right)
{
_resampler.EnqueueSample((short)left, (short)right);
}
//TODO: handle these in c++ (queue there and blast after frameadvance to c#)
public void retro_audio_sample(short left, short right)
{
resampler.EnqueueSample(left, right);
nsamprecv++;
}
private void snes_audio_sample(short left, short right)
{
_resampler.EnqueueSample(left, right);
}