protected override void ButtonClicked(int buttonIndex)
{
// local reference to the cached sample for readability
IGATProcessedSample cachedSample = _processedSamples[buttonIndex];
// pitch is scale semi tone plus corresponding slider value, translated as a frequency ratio
double pitch = GATMaths.GetRatioForInterval(( float )scaleSemiTones[buttonIndex] + SliderValues[buttonIndex]);
// If we have already played this sample and pitch has changed, we call Release().
// If we wouldn't, the sample bank would keep a cached version of the sample at the previous pitch,
// Quickly saturating memory.
if (cachedSample != null && cachedSample.Pitch != pitch)
{
cachedSample.Release();
}
if (envelopeModule != null) // If we have an envelope module, we just pass it's envelope to the bank
{ // when requesting a processed sample. All processing is automated.
cachedSample = sampleBank.GetProcessedSample(sampleName, envelopeModule.Envelope, pitch);
}
else
{ // Else, we pass null: the entire sample will be pitch shifted and cached.
cachedSample = sampleBank.GetProcessedSample(sampleName, null, pitch);
}
cachedSample.Play(TrackNb); // IGATProcessedSample also has it's own set of Play methods. Here, playback
// will be routed through the default player's track TrackNb.
_processedSamples[buttonIndex] = cachedSample; // keep a reference of the processed sample to release later.
}
void IGATAudioThreadStreamClient.HandleAudioThreadStream(float[] data, int offset, bool emptyData, IGATAudioThreadStream stream)
{
int trackIndex = -1;
int i;
if (stream == _playerStream)
{
for (i = 0; i < _playerChannelsLevels.Length; i++)
{
_playerChannelsLevels[i] = GATMaths.GetAbsMaxValueFromInterleaved(data, offset, stream.BufferSizePerChannel * stream.NbOfChannels, i, stream.NbOfChannels);
}
_shouldRepaint = true;
return;
}
for (i = 0; i < _trackStreams.Length; i++)
{
if (stream == _trackStreams[i])
{
trackIndex = i;
break;
}
}
if (trackIndex == -1)
{
return;
}
if (emptyData)
{
_trackLevels[trackIndex] = 0f;
_shouldRepaint = true;
return;
}
_trackLevels[trackIndex] = GATMaths.GetAbsMaxValue(data, offset, GATInfo.AudioBufferSizePerChannel);
_shouldRepaint = true;
}