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Fix Overflow in Fader.cpp (#3425)

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* Fix Overflow in Fader.cpp
This commit is contained in:
Umcaruje
2017-03-15 09:36:57 +01:00
committed by Oskar Wallgren
parent e879fad25d
commit 7be77847f9
1 changed files with 4 additions and 4 deletions
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8
src/gui/widgets/Fader.cpp
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@@ -379,12 +379,12 @@ void Fader::paintDBFSLevels(QPaintEvent * ev, QPainter & painter)
// Draw left levels
float const leftSpan = ampToDbfs(m_fPeakValue_L) - minDB;
float const leftSpan = ampToDbfs(qMax<float>(0.0001, m_fPeakValue_L)) - minDB;
int peak_L = height * leftSpan * fullSpanReciprocal;
QRect drawRectL( 0, height - peak_L, width, peak_L ); // Source and target are identical
painter.drawPixmap( drawRectL, *m_leds, drawRectL );
float const persistentLeftPeakDBFS = ampToDbfs(m_persistentPeak_L);
float const persistentLeftPeakDBFS = ampToDbfs(qMax<float>(0.0001, m_persistentPeak_L));
int persistentPeak_L = height * (1 - (persistentLeftPeakDBFS - minDB) * fullSpanReciprocal);
// the LED's have a 4px padding and we don't want the peaks
// to draw on the fader background
@@ -401,12 +401,12 @@ void Fader::paintDBFSLevels(QPaintEvent * ev, QPainter & painter)
// Draw right levels
float const rightSpan = ampToDbfs(m_fPeakValue_R) - minDB;
float const rightSpan = ampToDbfs(qMax<float>(0.0001, m_fPeakValue_R)) - minDB;
int peak_R = height * rightSpan * fullSpanReciprocal;
QRect const drawRectR( center, height - peak_R, width, peak_R ); // Source and target are identical
painter.drawPixmap( drawRectR, *m_leds, drawRectR );
float const persistentRightPeakDBFS = ampToDbfs(m_persistentPeak_R);
float const persistentRightPeakDBFS = ampToDbfs(qMax<float>(0.0001, m_persistentPeak_R));
int persistentPeak_R = height * (1 - (persistentRightPeakDBFS - minDB) * fullSpanReciprocal);
// the LED's have a 4px padding and we don't want the peaks
// to draw on the fader background