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Spectrum: allow zero decay so history (including max hold) is kept forever

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This commit is contained in:
f4exb 2018-10-17 13:35:04 +02:00
parent 2f955ba979
commit 9eb08541ee
1 changed files with 9 additions and 9 deletions
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18
sdrgui/gui/glspectrum.cpp
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@ -371,31 +371,31 @@ void GLSpectrum::updateHistogram(const std::vector<Real>& spectrum)
{ {
quint8* b = m_histogram; quint8* b = m_histogram;
quint8* h = m_histogramHoldoff; quint8* h = m_histogramHoldoff;
int sub = 1; int sub = 0; // was 1;
int fftMulSize = 100 * m_fftSize; int fftMulSize = 100 * m_fftSize;
if(m_decay > 0) //if(m_decay > 0)
sub += m_decay; sub += m_decay; // allow zero decay so history (including max hold) is kept forever
if (m_displayHistogram || m_displayMaxHold) if (m_displayHistogram || m_displayMaxHold)
{ {
m_histogramHoldoffCount--; m_histogramHoldoffCount--;
if(m_histogramHoldoffCount <= 0) if (m_histogramHoldoffCount <= 0)
{ {
for(int i = 0; i < fftMulSize; i++) for (int i = 0; i < fftMulSize; i++)
{ {
if((*b>>4) > 0) // *b > 16 if (*b > 16) // was 20
{ {
*b = *b - sub; *b = *b - sub;
} }
else if(*b > 0) else if (*b > 0)
{ {
if(*h >= sub) if (*h >= sub)
{ {
*h = *h - sub; *h = *h - sub;
} }
else if(*h > 0) else if (*h > 0)
{ {
*h = *h - 1; *h = *h - 1;
} }