unsafe void PrepSound()
{
fixed(short *sl = LeftBuffer, sr = RightBuffer)
{
for (uint i = 0; i < SampPerFrame * 2; i += 2)
{
int s = (sl[i] + sl[i + 1]) / 2;
if (s != LatchL)
{
blip_left.AddDelta(i, s - LatchL);
LatchL = s;
}
s = (sr[i] + sr[i + 1]) / 2;
if (s != LatchR)
{
blip_right.AddDelta(i, s - LatchR);
LatchR = s;
}
}
}
blip_left.EndFrame(SampPerFrame * 2);
blip_right.EndFrame(SampPerFrame * 2);
int count = blip_left.SamplesAvailable();
if (count != blip_right.SamplesAvailable())
{
throw new Exception("Sound problem?");
}
// calling blip.Clear() causes rounding fractions to be reset,
// and if only one channel is muted, in subsequent frames we can be off by a sample or two
// not a big deal, but we didn't account for it. so we actually complete the entire
// audio read and then stamp it out if muted.
blip_left.ReadSamplesLeft(SampleBuffer, count);
if (L.Muted)
{
fixed(short *p = SampleBuffer)
{
for (int i = 0; i < SampleBuffer.Length; i += 2)
{
p[i] = 0;
}
}
}
blip_right.ReadSamplesRight(SampleBuffer, count);
if (R.Muted)
{
fixed(short *p = SampleBuffer)
{
for (int i = 1; i < SampleBuffer.Length; i += 2)
{
p[i] = 0;
}
}
}
SampleBufferContains = count;
}
public void GetSamplesSync(out short[] samples, out int nsamp)
{
blip_L.EndFrame(sampleclock);
blip_R.EndFrame(sampleclock);
nsamp = Math.Max(Math.Max(blip_L.SamplesAvailable(), blip_R.SamplesAvailable()), 1);
samples = new short[nsamp * 2];
blip_L.ReadSamplesLeft(samples, nsamp);
blip_R.ReadSamplesRight(samples, nsamp);
sampleclock = 0;
}
public void GetSamplesSync(out short[] samples, out int nsamp)
{
_blip_L.EndFrame(master_audio_clock);
_blip_R.EndFrame(master_audio_clock);
nsamp = _blip_L.SamplesAvailable();
samples = new short[nsamp * 2];
if (nsamp != 0)
{
_blip_L.ReadSamplesLeft(samples, nsamp);
_blip_R.ReadSamplesRight(samples, nsamp);
}
master_audio_clock = 0;
}
private void ProcessSound()
{
var len = bridge.LibretroBridge_GetAudioSize(cbHandler);
if (len == 0) // no audio?
{
return;
}
if (len > _inSampBuf.Length)
{
_inSampBuf = new short[len];
}
var ns = 0;
bridge.LibretroBridge_GetAudio(cbHandler, ref ns, _inSampBuf);
for (uint i = 0; i < ns; i++)
{
int curr = _inSampBuf[i * 2];
if (curr != _latchL)
{
int diff = _latchL - curr;
_latchL = curr;
_blipL.AddDelta(i, diff);
}
curr = _inSampBuf[(i * 2) + 1];
if (curr != _latchR)
{
int diff = _latchR - curr;
_latchR = curr;
_blipR.AddDelta(i, diff);
}
}
_blipL.EndFrame((uint)ns);
_blipR.EndFrame((uint)ns);
_outSamps = _blipL.SamplesAvailable();
_blipL.ReadSamplesLeft(_outSampBuf, _outSamps);
_blipR.ReadSamplesRight(_outSampBuf, _outSamps);
}
public void GetSamplesSync(out short[] samples, out int nsamp)
{
uint f_clock = LibMSX.MSX_get_audio(MSX_Pntr, Aud_L, Aud_R, ref num_samp_L, ref num_samp_R);
for (int i = 0; i < num_samp_L; i++)
{
blip_L.AddDelta(Aud_L[i * 2], (int)Aud_L[i * 2 + 1]);
}
for (int i = 0; i < num_samp_R; i++)
{
blip_R.AddDelta(Aud_R[i * 2], (int)Aud_R[i * 2 + 1]);
}
blip_L.EndFrame(f_clock);
blip_R.EndFrame(f_clock);
nsamp = Math.Max(Math.Max(blip_L.SamplesAvailable(), blip_R.SamplesAvailable()), 1);
samples = new short[nsamp * 2];
blip_L.ReadSamplesLeft(samples, nsamp);
blip_R.ReadSamplesRight(samples, nsamp);
}
public void GetSamplesSync(out short[] samples, out int nsamp)
{
if (!disablePSG)
{
blip_L.EndFrame(sampleclock);
blip_R.EndFrame(sampleclock);
nsamp = Math.Max(Math.Max(blip_L.SamplesAvailable(), blip_R.SamplesAvailable()), 1);
samples = new short[nsamp * 2];
blip_L.ReadSamplesLeft(samples, nsamp);
blip_R.ReadSamplesRight(samples, nsamp);
ApplyYMAudio(samples);
}
else
{
nsamp = 735;
samples = new short[nsamp * 2];
ApplyYMAudio(samples);
}
sampleclock = 0;
}