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Spectrum: reworked max hold

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This commit is contained in:
f4exb 2018-10-23 22:38:16 +02:00
parent 30e36157a8
commit 2958e1adba
1 changed files with 13 additions and 12 deletions
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25
sdrgui/gui/glspectrum.cpp
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@ -798,36 +798,37 @@ void GLSpectrum::paintGL()
// paint max hold lines on top of histogram
if (m_displayMaxHold)
{
if (m_maxHold.size() < (uint)m_fftSize)
m_maxHold.resize(m_fftSize);
if (m_maxHold.size() < (uint) m_fftSize) {
m_maxHold.resize(m_fftSize);
}
for(int i = 0; i < m_fftSize; i++)
for (int i = 0; i < m_fftSize; i++)
{
int j;
quint8* bs = m_histogram + i * 100;
for(j = 99; j > 1; j--)
for (j = 99; j >= 0; j--)
{
if(bs[j] > 0) {
if (bs[j] > 0) {
break;
}
}
j = j - 99;
m_maxHold[i] = (j * m_powerRange) / 99.0 + m_referenceLevel;
// m_referenceLevel : top
// m_referenceLevel - m_powerRange : bottom
m_maxHold[i] = ((j - 99) * m_powerRange) / 99.0 + m_referenceLevel;
}
{
GLfloat *q3 = m_q3FFT.m_array;
Real bottom = -m_powerRange;
for(int i = 0; i < m_fftSize; i++)
for (int i = 0; i < m_fftSize; i++)
{
Real v = m_maxHold[i] - m_referenceLevel;
if(v > 0) {
if (v >= 0) {
v = 0;
} else if(v < bottom) {
v = bottom;
} else if (v < -m_powerRange) {
v = -m_powerRange;
}
q3[2*i] = (Real) i;