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optimize the osclillator

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KubaPro010
2025-03-26 13:24:13 +01:00
parent 7fbe7ec5e3
commit 5b8b3def6d
2 changed files with 13 additions and 9 deletions
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2
.vscode/.server-controller-port.log vendored
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@@ -1,5 +1,5 @@
{ {
"port": 13452, "port": 13452,
"time": 1742920067458, "time": 1742991617814,
"version": "0.0.3" "version": "0.0.3"
} }

20
lib/oscillator.c
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@@ -22,16 +22,20 @@ float get_oscillator_cos_sample(Oscillator *osc) {
return sample; return sample;
} }
float get_oscillator_sin_multiplier_ni(Oscillator *osc, float multiplier) { // ni = No Increment float get_oscillator_sin_multiplier_ni(Oscillator *osc, float multiplier) {
return sinf(fmodf(osc->phase * multiplier, M_2PI)); float new_phase = osc->phase * multiplier;
new_phase -= (new_phase >= M_2PI) ? M_2PI : 0.0f;
return sinf(new_phase);
} }
float get_oscillator_cos_multiplier_ni(Oscillator *osc, float multiplier) { float get_oscillator_cos_multiplier_ni(Oscillator *osc, float multiplier) {
return cosf(fmodf(osc->phase * multiplier, M_2PI)); float new_phase = osc->phase * multiplier;
new_phase -= (new_phase >= M_2PI) ? M_2PI : 0.0f;
return cosf(new_phase);
} }
void advance_oscillator(Oscillator *osc) { void advance_oscillator(Oscillator *osc) {
osc->phase += osc->phase_increment; osc->phase += osc->phase_increment;
if (osc->phase >= M_2PI) { osc->phase -= (osc->phase >= M_2PI) ? M_2PI : 0.0f;
osc->phase -= M_2PI; osc->phase = (fabsf(osc->phase) < 1e-10f) ? 0.0f : osc->phase;
} }
}