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sdrangel/sdrbase/dsp/glspectrumsettings.cpp

189 lines
5.3 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2019 Edouard Griffiths, F4EXB. //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation as version 3 of the License, or //
// (at your option) any later version. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#include "fftwindow.h"
#include "util/simpleserializer.h"
#include "glspectrumsettings.h"
GLSpectrumSettings::GLSpectrumSettings()
{
resetToDefaults();
}
GLSpectrumSettings::~GLSpectrumSettings()
{}
void GLSpectrumSettings::resetToDefaults()
{
m_fftSize = 1024;
m_fftOverlap = 0;
m_fftWindow = FFTWindow::Hanning;
m_refLevel = 0;
m_powerRange = 100;
m_decay = 1;
m_decayDivisor = 1;
m_histogramStroke = 30;
m_displayGridIntensity = 5,
m_displayWaterfall = true;
m_invertedWaterfall = false;
m_displayMaxHold = false;
m_displayHistogram = false;
m_displayGrid = false;
m_invert = true;
m_averagingMode = AvgModeNone;
m_averagingIndex = 0;
m_linear = false;
}
QByteArray GLSpectrumSettings::serialize() const
{
SimpleSerializer s(1);
s.writeS32(1, m_fftSize);
s.writeS32(2, m_fftOverlap);
s.writeS32(3, m_fftWindow);
s.writeReal(4, m_refLevel);
s.writeReal(5, m_powerRange);
s.writeBool(6, m_displayWaterfall);
s.writeBool(7, m_invertedWaterfall);
s.writeBool(8, m_displayMaxHold);
s.writeBool(9, m_displayHistogram);
s.writeS32(10, m_decay);
s.writeBool(11, m_displayGrid);
s.writeBool(12, m_invert);
s.writeS32(13, m_displayGridIntensity);
s.writeS32(14, m_decayDivisor);
s.writeS32(15, m_histogramStroke);
s.writeBool(16, m_displayCurrent);
s.writeS32(17, m_displayTraceIntensity);
s.writeReal(18, m_waterfallShare);
s.writeS32(19, (int) m_averagingMode);
s.writeS32(20, (qint32) getAveragingValue(m_averagingIndex, m_averagingMode));
s.writeBool(21, m_linear);
return s.final();
}
bool GLSpectrumSettings::deserialize(const QByteArray& data)
{
SimpleDeserializer d(data);
if(!d.isValid()) {
resetToDefaults();
return false;
}
int tmp;
if (d.getVersion() == 1)
{
d.readS32(1, &m_fftSize, 1024);
d.readS32(2, &m_fftOverlap, 0);
d.readS32(3, &m_fftWindow, FFTWindow::Hanning);
d.readReal(4, &m_refLevel, 0);
d.readReal(5, &m_powerRange, 100);
d.readBool(6, &m_displayWaterfall, true);
d.readBool(7, &m_invertedWaterfall, false);
d.readBool(8, &m_displayMaxHold, false);
d.readBool(9, &m_displayHistogram, false);
d.readS32(10, &m_decay, 1);
d.readBool(11, &m_displayGrid, false);
d.readBool(12, &m_invert, true);
d.readS32(13, &m_displayGridIntensity, 5);
d.readS32(14, &m_decayDivisor, 1);
d.readS32(15, &m_histogramStroke, 30);
d.readBool(16, &m_displayCurrent, false);
d.readS32(17, &m_displayTraceIntensity, 50);
d.readReal(18, &m_waterfallShare, 0.66);
d.readS32(19, &tmp, 0);
m_averagingMode = tmp < 0 ? AvgModeNone : tmp > 3 ? AvgModeMax : (AveragingMode) tmp;
d.readS32(20, &tmp, 0);
m_averagingIndex = getAveragingIndex(tmp, m_averagingMode);
m_averagingNb = getAveragingValue(m_averagingIndex, m_averagingMode);
d.readBool(21, &m_linear, false);
return true;
}
else
{
resetToDefaults();
return false;
}
}
int GLSpectrumSettings::getAveragingMaxScale(AveragingMode averagingMode)
{
if (averagingMode == AvgModeMoving) {
return 2;
} else {
return 5;
}
}
int GLSpectrumSettings::getAveragingValue(int averagingIndex, AveragingMode averagingMode)
{
if (averagingIndex <= 0) {
return 1;
}
int v = averagingIndex - 1;
int m = pow(10.0, v/3 > getAveragingMaxScale(averagingMode) ? getAveragingMaxScale(averagingMode) : v/3);
int x = 1;
if (v % 3 == 0) {
x = 2;
} else if (v % 3 == 1) {
x = 5;
} else if (v % 3 == 2) {
x = 10;
}
return x * m;
}
int GLSpectrumSettings::getAveragingIndex(int averagingValue, AveragingMode averagingMode)
{
if (averagingValue <= 1) {
return 0;
}
int v = averagingValue;
int j = 0;
for (int i = 0; i <= getAveragingMaxScale(averagingMode); i++)
{
if (v < 20)
{
if (v < 2) {
j = 0;
} else if (v < 5) {
j = 1;
} else if (v < 10) {
j = 2;
} else {
j = 3;
}
return 3*i + j;
}
v /= 10;
}
return 3*getAveragingMaxScale(averagingMode) + 3;
}