public void AudioDeviceIOCallback(float *[] inputChannelData, int numInputChannels, float *[] outputChannelData, int numOutputChannels, int numSamples)
{
if (_source != null)
{
if (numInputChannels > numOutputChannels)
{
throw new NotImplementedException();
}
var numActiveChans = 0;
var channelSize = numSamples * sizeof(float);
for (var i = 0; i < numInputChannels; ++i)
{
_channels[numActiveChans] = outputChannelData[i];
Memory.MemCopy(_channels[numActiveChans], inputChannelData[i], channelSize);
++numActiveChans;
}
for (var i = 0; i < numOutputChannels; ++i)
{
_channels[numActiveChans] = outputChannelData[i];
Memory.ZeroMem <float>(_channels[numActiveChans], numSamples);
++numActiveChans;
}
_renderBuffer.Wrap(_channels, numActiveChans, numSamples);
var info = new AudioSourceChannelInfo(_renderBuffer, 0, numSamples);
_source.GetNextAudioBlock(ref info);
for (var i = 0; i < numOutputChannels; ++i)
{
SIMD.Mul(outputChannelData[i], _gain, outputChannelData[i], numSamples);
}
}
else
{
for (var i = 0; i < numOutputChannels; ++i)
{
Memory.ZeroMem <float>(outputChannelData[i], numSamples);
}
}
}
public void GetNextAudioBlock(ref AudioSourceChannelInfo bufferToFill)
{
var buffer = bufferToFill.Buffer;
for (var i = 1; i < buffer.NumChannels; ++i)
{
// for (var j = 0; j < bufferToFill.NumSamples; ++j)
// {
// buffer.Channels[i][bufferToFill.StartSample + j] *= buffer.Channels[0][bufferToFill.StartSample + j];
// }
SIMD.Mul(
buffer.GetPointer(0, bufferToFill.StartSample),
buffer.GetPointer(i, bufferToFill.StartSample),
buffer.GetPointer(i, bufferToFill.StartSample),
bufferToFill.NumSamples
);
}
}
