/** Convolution processing handling interpolation between previous and new states
of the convolution engines.
*/
void processSamples (const AudioBlock<float>& input, AudioBlock<float>& output)
{
processFifo();
size_t numChannels = input.getNumChannels();
size_t numSamples = jmin (input.getNumSamples(), output.getNumSamples());
if (mustInterpolate == false)
{
for (size_t channel = 0; channel < numChannels; ++channel)
engines[(int) channel]->processSamples (input.getChannelPointer (channel), output.getChannelPointer (channel), numSamples);
}
else
{
auto interpolated = AudioBlock<float> (interpolationBuffer).getSubBlock (0, numSamples);
for (size_t channel = 0; channel < numChannels; ++channel)
{
auto&& buffer = output.getSingleChannelBlock (channel);
interpolationBuffer.copyFrom ((int) channel, 0, input.getChannelPointer (channel), (int) numSamples);
engines[(int) channel]->processSamples (input.getChannelPointer (channel), buffer.getChannelPointer (0), numSamples);
changeVolumes[channel].applyGain (buffer.getChannelPointer (0), (int) numSamples);
auto* interPtr = interpolationBuffer.getWritePointer ((int) channel);
engines[(int) channel + 2]->processSamples (interPtr, interPtr, numSamples);
changeVolumes[channel + 2].applyGain (interPtr, (int) numSamples);
buffer += interpolated.getSingleChannelBlock (channel);
}
if (changeVolumes[0].isSmoothing() == false)
{
mustInterpolate = false;
for (auto channel = 0; channel < 2; ++channel)
engines[channel]->copyStateFromOtherEngine (*engines[channel + 2]);
}
}
}
