void process(AUAudioFrameCount frameCount, AUAudioFrameCount bufferOffset) override {
for (int frameIndex = 0; frameIndex < frameCount; ++frameIndex) {
int frameOffset = int(frameIndex + bufferOffset);
shift = shiftRamper.getAndStep();
*pshift0->shift = (float)shift;
*pshift1->shift = (float)shift;
windowSize = windowSizeRamper.getAndStep();
*pshift0->window = (float)windowSize;
*pshift1->window = (float)windowSize;
crossfade = crossfadeRamper.getAndStep();
*pshift0->xfade = (float)crossfade;
*pshift1->xfade = (float)crossfade;
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) {
if (channel == 0) {
sp_pshift_compute(sp, pshift0, in, out);
} else {
sp_pshift_compute(sp, pshift1, in, out);
}
} else {
*out = *in;
}
}
}
}
int sporth_pshift(sporth_stack *stack, void *ud)
{
plumber_data *pd = ud;
SPFLOAT input;
SPFLOAT out;
SPFLOAT shift;
SPFLOAT window;
SPFLOAT xfade;
sp_pshift *pshift;
switch(pd->mode) {
case PLUMBER_CREATE:
#ifdef DEBUG_MODE
fprintf(stderr, "pshift: Creating\n");
#endif
sp_pshift_create(&pshift);
plumber_add_ugen(pd, SPORTH_PSHIFT, pshift);
if(sporth_check_args(stack, "ffff") != SPORTH_OK) {
fprintf(stderr,"Not enough arguments for pshift\n");
stack->error++;
return PLUMBER_NOTOK;
}
xfade = sporth_stack_pop_float(stack);
window = sporth_stack_pop_float(stack);
shift = sporth_stack_pop_float(stack);
input = sporth_stack_pop_float(stack);
sp_pshift_init(pd->sp, pshift);
sporth_stack_push_float(stack, 0);
break;
case PLUMBER_INIT:
#ifdef DEBUG_MODE
fprintf(stderr, "pshift: Initialising\n");
#endif
xfade = sporth_stack_pop_float(stack);
window = sporth_stack_pop_float(stack);
shift = sporth_stack_pop_float(stack);
input = sporth_stack_pop_float(stack);
sporth_stack_push_float(stack, 0);
break;
case PLUMBER_COMPUTE:
xfade = sporth_stack_pop_float(stack);
window = sporth_stack_pop_float(stack);
shift = sporth_stack_pop_float(stack);
input = sporth_stack_pop_float(stack);
pshift = pd->last->ud;
*pshift->shift = shift;
*pshift->window = window;
*pshift->xfade = xfade;
sp_pshift_compute(pd->sp, pshift, &input, &out);
sporth_stack_push_float(stack, out);
break;
case PLUMBER_DESTROY:
pshift = pd->last->ud;
sp_pshift_destroy(&pshift);
break;
default:
fprintf(stderr, "pshift: Unknown mode!\n");
break;
}
return PLUMBER_OK;
}
