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Bug1636: fix Crash on OK selecting RIAA or Telephone Eq curve...

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... Really two crashes, one in case Linear frequency scale is selected, the
other if Logarithmic.

Problem was introduced at commit 7d5e54e364fcccd630274f2658703543d8c596eb
This commit is contained in:
Paul Licameli 2017-07-14 10:50:28 -04:00
parent 54af4f1ff7
commit 4a500c77dd
1 changed files with 20 additions and 7 deletions
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27
src/effects/Equalization.cpp
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@ -1680,12 +1680,20 @@ void EffectEqualization::setCurve(int currentCurve)
break;
}
else {
// There are more points at higher freqs,
// so interpolate next one then stop.
when = 1.0;
double lastF = mCurves[currentCurve].points[pointCount-1].Freq;
double nextF = mCurves[currentCurve].points[pointCount].Freq;
double lastDB = mCurves[currentCurve].points[pointCount-1].dB;
double nextDB = mCurves[currentCurve].points[pointCount].dB;
value = lastDB + ((nextDB - lastDB) * ((mHiFreq - lastF) / (nextF - lastF)));
if (pointCount > 0) {
double nextF = mCurves[currentCurve].points[pointCount].Freq;
double lastF = mCurves[currentCurve].points[pointCount-1].Freq;
double lastDB = mCurves[currentCurve].points[pointCount-1].dB;
value = lastDB +
((nextDB - lastDB) *
((mHiFreq - lastF) / (nextF - lastF)));
}
else
value = nextDB;
env->InsertOrReplace(when, value);
break;
}
@ -1751,9 +1759,14 @@ void EffectEqualization::setCurve(int currentCurve)
// interpolate the final point instead
when = 1.0;
double logLastF = log10(mCurves[currentCurve].points[pointCount-1].Freq);
double lastDB = mCurves[currentCurve].points[pointCount-1].dB;
value = lastDB + ((value - lastDB) * ((log10(mHiFreq) - logLastF) / (flog - logLastF)));
if (pointCount > 0) {
double lastDB = mCurves[currentCurve].points[pointCount-1].dB;
double logLastF =
log10(mCurves[currentCurve].points[pointCount-1].Freq);
value = lastDB +
((value - lastDB) *
((log10(mHiFreq) - logLastF) / (flog - logLastF)));
}
env->InsertOrReplace(when, value);
break;
}