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Fixed assertion crash and fixed a bug with the cubic interpolation. The interpolated waveform will now stay in phase.

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System64 2022-10-12 11:59:04 +02:00 committed by GitHub
parent 77f66642f4
commit a51840b801
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1 changed files with 7 additions and 2 deletions
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9
src/gui/waveEdit.cpp
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@ -537,7 +537,12 @@ void FurnaceGUI::drawWaveEdit() {
if (waveGenScaleX > 0 && wave->len != waveGenScaleX) e->lockEngine([this, wave]() {
int origData[256];
// Copy original wave to temp buffer
assert(wave->len <= 256);
// If longer than 256 samples, return
if (wave->len >= 256)
{
showError("ERROR : Wavetable longer than 256 samples!");
return;
}
memcpy(origData, wave->data, wave->len * sizeof(int));
float t = 0; // Index used into `origData`
@ -576,7 +581,7 @@ void FurnaceGUI::drawWaveEdit() {
case 3: // Cubic Spline
{
int idx = t; // Implicitly floors `t`
int s0 = origData[(idx) % wave->len], s1 = origData[(idx + 1) % wave->len], s2 = origData[(idx + 2) % wave->len], s3 = origData[(idx + 3) % wave->len];
int s0 = origData[((idx - 1 % wave->len + wave->len) % wave->len)], s1 = origData[(idx) % wave->len], s2 = origData[(idx + 1) % wave->len], s3 = origData[(idx + 2) % wave->len];
double a0, a1, a2, a3;
double mu = (t - idx);
double mu2 = mu * mu;