void process(AUAudioFrameCount frameCount, AUAudioFrameCount bufferOffset) override {
for (int frameIndex = 0; frameIndex < frameCount; ++frameIndex) {
int frameOffset = int(frameIndex + bufferOffset);
centerFrequency = centerFrequencyRamper.getAndStep();
fofilt->freq = (float)centerFrequency;
attackDuration = attackDurationRamper.getAndStep();
fofilt->atk = (float)attackDuration;
decayDuration = decayDurationRamper.getAndStep();
fofilt->dec = (float)decayDuration;
for (int channel = 0; channel < channels; ++channel) {
float *in = (float *)inBufferListPtr->mBuffers[channel].mData + frameOffset;
float *out = (float *)outBufferListPtr->mBuffers[channel].mData + frameOffset;
if (started) {
sp_fofilt_compute(sp, fofilt, in, out);
} else {
*out = *in;
}
}
}
}
void write_noise(sp_data *data, void *ud) {
udata *udata = ud;
SPFLOAT in = 0;
SPFLOAT out = 0;
sp_noise_compute(data, udata->ns, NULL, &in);
sp_fofilt_compute(data, udata->tn, &in, &data->out[0]);
}