b2u
A bipolar input, unipolar output k rate function defined by 2 segments.
Inlets
frac32.bipolar in
Outlets
frac32 out
Parameters
frac32.u.map p0
frac32.u.map p1
frac32.u.map p2
Control Rate
int32_t in = (inlet_in + (1 << 27)) >> 1;
if (in >= (1 << 27))
outlet_out = param_p2;
else if (in <= 0)
outlet_out = param_p0;
else {
int32_t i = in >> (27 - 1); // i [0 2[
int32_t a = (in & ((1 << (27 - 1)) - 1)); // a q26
if (i < 1) { // [0 1[ q27 q26 q21 q27
outlet_out = ___SMMLA(param_p1 - param_p0, a, param_p0 >> 6) << 6;
} else { // [1 2[
outlet_out = ___SMMLA(param_p2 - param_p1, a, param_p1 >> 6) << 6;
}
}