tableOS
simple, up to 16x oversampled, wavetable oscillator, able to use wavetables from the waveformLoader, waveformGenerator, waveformGuitar and waveformRandom modules. "mix" mixes from sine to the selected waveform.
Inlets
frac32 pitch
frac32 preset
frac32 mix
Outlets
frac32buffer wave
Parameters
int32 OS
frac32.s.map.pitch pitch
frac32.u.map preset
frac32.u.map mix
Attributes
objref table
uint32_t phase;
int i;
int32_t prev;
int32_t step;int32_t freq;
MTOFEXTENDED(param_pitch + inlet_pitch, freq)
freq = freq / param_OS;
int32_t preset1 = ___SMMUL((param_preset + inlet_preset & ((1 << 27) - 1)) << 3,
attr_table.Waveforms - 1 << 2) *
attr_table.LENGTH;
int32_t mix = __USAT(param_mix + inlet_mix, 27) << 3;
step = ((mix - prev) >> 4) / param_OS;
int32_t Mix = prev;
prev = mix;outlet_out = 0;
for (i = 0; i < param_OS; i++) {
Mix += step;
int32_t iMix = (1 << 30) - Mix;
phase += freq;
uint32_t tmp_d = phase >> 5;
uint32_t tmp_di = (tmp_d >> (27 - attr_table.LENGTHPOW));
uint32_t tmp_w1 = (tmp_d << (attr_table.LENGTHPOW + 3)) & 0x3FFFFFFF;
uint32_t tmp_w2 = (1 << 30) - tmp_w1;
int32_t tmp_a11 =
attr_table.array[(tmp_di & attr_table.LENGTHMASK) + preset1];
int32_t tmp_a21 =
attr_table.array[((tmp_di + 1) & attr_table.LENGTHMASK) + preset1];
int32_t tmp_r = ___SMMUL(tmp_a11, tmp_w1);
int32_t sine;
SINE2TINTERP(phase, sine)
tmp_r = ___SMMUL(Mix, ___SMMLA(tmp_a21, tmp_w2, tmp_r) << 2) +
___SMMUL(iMix, sine >> 5);
outlet_out += tmp_r / param_OS;
}