mirror of
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1133 lines
36 KiB
C++
1133 lines
36 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
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// written by Christian Daniel //
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// Copyright (C) 2014 John Greb <karikoa@One.greyskull> //
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// Copyright (C) 2015-2023 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
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// Copyright (C) 2022 Jiří Pinkava <jiri.pinkava@rossum.ai> //
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// Copyright (C) 2023 Arne Jünemann <das-iro@das-iro.de> //
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// Copyright (C) 2023 Vladimir Pleskonjic //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include "SWGGLSpectrum.h"
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#include "SWGSpectrumServer.h"
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#include "SWGSuccessResponse.h"
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#include "glspectruminterface.h"
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#include "dspcommands.h"
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#include "dspengine.h"
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#include "fftfactory.h"
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#include "util/messagequeue.h"
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#include "spectrumvis.h"
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MESSAGE_CLASS_DEFINITION(SpectrumVis::MsgConfigureSpectrumVis, Message)
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MESSAGE_CLASS_DEFINITION(SpectrumVis::MsgConfigureScalingFactor, Message)
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MESSAGE_CLASS_DEFINITION(SpectrumVis::MsgConfigureWSpectrumOpenClose, Message)
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MESSAGE_CLASS_DEFINITION(SpectrumVis::MsgConfigureWSpectrum, Message)
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MESSAGE_CLASS_DEFINITION(SpectrumVis::MsgStartStop, Message)
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MESSAGE_CLASS_DEFINITION(SpectrumVis::MsgFrequencyZooming, Message)
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const Real SpectrumVis::m_mult = (10.0f / log2(10.0f));
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SpectrumVis::SpectrumVis(Real scalef) :
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BasebandSampleSink(),
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m_running(true),
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m_fft(nullptr),
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m_fftEngineSequence(0),
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m_fftBuffer(4096),
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m_powerSpectrum(4096),
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m_psd(4096),
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m_fftBufferFill(0),
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m_needMoreSamples(false),
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m_frequencyZoomFactor(1.0f),
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m_frequencyZoomPos(0.5f),
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m_scalef(scalef),
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m_glSpectrum(nullptr),
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m_specMax(0.0f),
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m_centerFrequency(0),
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m_sampleRate(48000),
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m_ofs(0),
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m_powFFTDiv(1.0),
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m_guiMessageQueue(nullptr)
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{
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setObjectName("SpectrumVis");
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connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()));
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applySettings(m_settings, true);
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}
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SpectrumVis::~SpectrumVis()
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{
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FFTFactory *fftFactory = DSPEngine::instance()->getFFTFactory();
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fftFactory->releaseEngine(m_settings.m_fftSize, false, m_fftEngineSequence);
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}
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void SpectrumVis::setScalef(Real scalef)
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{
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MsgConfigureScalingFactor* cmd = new MsgConfigureScalingFactor(scalef);
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m_inputMessageQueue.push(cmd);
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}
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void SpectrumVis::configureWSSpectrum(const QString& address, uint16_t port)
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{
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MsgConfigureWSpectrum* cmd = new MsgConfigureWSpectrum(address, port);
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m_inputMessageQueue.push(cmd);
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}
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void SpectrumVis::feedTriggered(const SampleVector::const_iterator& triggerPoint, const SampleVector::const_iterator& end, bool positiveOnly)
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{
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feed(triggerPoint, end, positiveOnly); // normal feed from trigger point
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/*
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if (triggerPoint == end)
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{
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// the following piece of code allows to terminate the FFT that ends past the end of scope captured data
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// that is the spectrum will include the captured data
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// just do nothing if you want the spectrum to be included inside the scope captured data
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// that is to drop the FFT that dangles past the end of captured data
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if (m_needMoreSamples) {
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feed(begin, end, positiveOnly);
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m_needMoreSamples = false; // force finish
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}
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}
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else
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{
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feed(triggerPoint, end, positiveOnly); // normal feed from trigger point
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}*/
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}
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void SpectrumVis::feed(const Complex *begin, unsigned int length)
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{
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if (!m_glSpectrum && !m_wsSpectrum.socketOpened()) {
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return;
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}
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if (!m_mutex.tryLock(0)) { // prevent conflicts with configuration process
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return;
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}
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Complex c;
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Real v;
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int fftMin = (m_frequencyZoomFactor == 1.0f) ?
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0 : (m_frequencyZoomPos - (0.5f / m_frequencyZoomFactor)) * m_settings.m_fftSize;
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int fftMax = (m_frequencyZoomFactor == 1.0f) ?
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m_settings.m_fftSize : (m_frequencyZoomPos + (0.5f / m_frequencyZoomFactor)) * m_settings.m_fftSize;
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if (m_settings.m_averagingMode == SpectrumSettings::AvgModeNone)
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{
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for (int i = 0; i < m_settings.m_fftSize; i++)
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{
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if (i < (int) length) {
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c = begin[i];
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} else {
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c = Complex{0,0};
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}
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v = c.real() * c.real() + c.imag() * c.imag();
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m_psd[i] = v/m_powFFTDiv;
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v = m_settings.m_linear ? v/m_powFFTDiv : m_mult * log2fapprox(v) + m_ofs;
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m_powerSpectrum[i] = v;
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}
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// send new data to visualisation
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if (m_glSpectrum)
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{
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m_glSpectrum->newSpectrum(
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&m_powerSpectrum.data()[fftMin],
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fftMax - fftMin,
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m_settings.m_fftSize
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);
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}
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// web socket spectrum connections
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if (m_wsSpectrum.socketOpened())
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{
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m_wsSpectrum.newSpectrum(
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m_powerSpectrum,
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m_settings.m_fftSize,
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m_centerFrequency,
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m_sampleRate,
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m_settings.m_linear,
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m_settings.m_ssb,
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m_settings.m_usb
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);
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}
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}
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else if (m_settings.m_averagingMode == SpectrumSettings::AvgModeMoving)
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{
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for (int i = 0; i < m_settings.m_fftSize; i++)
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{
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if (i < (int) length) {
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c = begin[i];
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} else {
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c = Complex{0,0};
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}
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v = c.real() * c.real() + c.imag() * c.imag();
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v = m_movingAverage.storeAndGetAvg(v, i);
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m_psd[i] = v/m_powFFTDiv;
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v = m_settings.m_linear ? v/m_powFFTDiv : m_mult * log2fapprox(v) + m_ofs;
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m_powerSpectrum[i] = v;
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}
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// send new data to visualisation
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if (m_glSpectrum)
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{
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m_glSpectrum->newSpectrum(
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&m_powerSpectrum.data()[fftMin],
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fftMax - fftMin,
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m_settings.m_fftSize
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);
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}
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// web socket spectrum connections
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if (m_wsSpectrum.socketOpened())
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{
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m_wsSpectrum.newSpectrum(
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m_powerSpectrum,
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m_settings.m_fftSize,
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m_centerFrequency,
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m_sampleRate,
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m_settings.m_linear,
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m_settings.m_ssb,
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m_settings.m_usb
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);
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}
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m_movingAverage.nextAverage();
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}
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else if (m_settings.m_averagingMode == SpectrumSettings::AvgModeFixed)
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{
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double avg;
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for (int i = 0; i < m_settings.m_fftSize; i++)
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{
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if (i < (int) length) {
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c = begin[i];
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} else {
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c = Complex{0,0};
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}
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v = c.real() * c.real() + c.imag() * c.imag();
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// result available
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if (m_fixedAverage.storeAndGetAvg(avg, v, i))
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{
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m_psd[i] = avg/m_powFFTDiv;
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avg = m_settings.m_linear ? avg/m_powFFTDiv : m_mult * log2fapprox(avg) + m_ofs;
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m_powerSpectrum[i] = avg;
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}
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}
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// result available
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if (m_fixedAverage.nextAverage())
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{
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// send new data to visualisation
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if (m_glSpectrum)
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{
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m_glSpectrum->newSpectrum(
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&m_powerSpectrum.data()[fftMin],
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fftMax - fftMin,
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m_settings.m_fftSize
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);
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}
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// web socket spectrum connections
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if (m_wsSpectrum.socketOpened())
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{
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m_wsSpectrum.newSpectrum(
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m_powerSpectrum,
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m_settings.m_fftSize,
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m_centerFrequency,
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m_sampleRate,
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m_settings.m_linear,
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m_settings.m_ssb,
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m_settings.m_usb
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);
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}
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}
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}
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else if (m_settings.m_averagingMode == SpectrumSettings::AvgModeMax)
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{
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double max;
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for (int i = 0; i < m_settings.m_fftSize; i++)
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{
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if (i < (int) length) {
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c = begin[i];
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} else {
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c = Complex{0,0};
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}
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v = c.real() * c.real() + c.imag() * c.imag();
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// result available
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if (m_max.storeAndGetMax(max, v, i))
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{
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m_psd[i] = max/m_powFFTDiv;
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max = m_settings.m_linear ? max/m_powFFTDiv : m_mult * log2fapprox(max) + m_ofs;
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m_powerSpectrum[i] = max;
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}
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}
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// result available
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if (m_max.nextMax())
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{
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// send new data to visualisation
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if (m_glSpectrum)
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{
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m_glSpectrum->newSpectrum(
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&m_powerSpectrum.data()[fftMin],
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fftMax - fftMin,
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m_settings.m_fftSize
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);
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}
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// web socket spectrum connections
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if (m_wsSpectrum.socketOpened())
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{
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m_wsSpectrum.newSpectrum(
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m_powerSpectrum,
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m_settings.m_fftSize,
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m_centerFrequency,
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m_sampleRate,
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m_settings.m_linear,
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m_settings.m_ssb,
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m_settings.m_usb
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);
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}
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}
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}
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m_mutex.unlock();
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}
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void SpectrumVis::feed(const ComplexVector::const_iterator& cbegin, const ComplexVector::const_iterator& end, bool positiveOnly)
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{
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if (!m_running) {
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return;
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}
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// if no visualisation is set, send the samples to /dev/null
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if (!m_glSpectrum && !m_wsSpectrum.socketOpened()) {
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return;
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}
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if (!m_mutex.tryLock(0)) { // prevent conflicts with configuration process
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return;
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}
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ComplexVector::const_iterator begin(cbegin);
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while (begin < end)
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{
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std::size_t todo = end - begin;
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std::size_t samplesNeeded = m_settings.m_fftSize - m_fftBufferFill;
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if (todo >= samplesNeeded)
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{
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// fill up the buffer
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std::copy(begin, begin + samplesNeeded, m_fftBuffer.begin() + m_fftBufferFill);
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begin += samplesNeeded;
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processFFT(positiveOnly);
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// advance buffer respecting the fft overlap factor
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// undefined behavior if the memory regions overlap, valid code for 50% overlap
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std::copy(m_fftBuffer.begin() + m_refillSize, m_fftBuffer.end(), m_fftBuffer.begin());
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// start over
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m_fftBufferFill = m_overlapSize;
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m_needMoreSamples = false;
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}
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else
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{
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// not enough samples for FFT - just fill in new data and return
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std::copy(begin, end, m_fftBuffer.begin() + m_fftBufferFill);
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begin = end;
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m_fftBufferFill += todo;
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m_needMoreSamples = true;
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}
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}
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m_mutex.unlock();
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}
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void SpectrumVis::feed(const SampleVector::const_iterator& cbegin, const SampleVector::const_iterator& end, bool positiveOnly)
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{
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if (!m_running) {
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return;
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}
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// if no visualisation is set, send the samples to /dev/null
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if (!m_glSpectrum && !m_wsSpectrum.socketOpened()) {
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return;
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}
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if (!m_mutex.tryLock(0)) { // prevent conflicts with configuration process
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return;
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}
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SampleVector::const_iterator begin(cbegin);
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while (begin < end)
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{
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std::size_t todo = end - begin;
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std::size_t samplesNeeded = m_settings.m_fftSize - m_fftBufferFill;
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if (todo >= samplesNeeded)
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{
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// fill up the buffer
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std::vector<Complex>::iterator it = m_fftBuffer.begin() + m_fftBufferFill;
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for (std::size_t i = 0; i < samplesNeeded; ++i, ++begin) {
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*it++ = Complex(begin->real() / m_scalef, begin->imag() / m_scalef);
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}
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processFFT(positiveOnly);
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// advance buffer respecting the fft overlap factor
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// undefined behavior if the memory regions overlap, valid code for 50% overlap
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std::copy(m_fftBuffer.begin() + m_refillSize, m_fftBuffer.end(), m_fftBuffer.begin());
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// start over
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m_fftBufferFill = m_overlapSize;
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m_needMoreSamples = false;
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}
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else
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{
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// not enough samples for FFT - just fill in new data and return
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for (std::vector<Complex>::iterator it = m_fftBuffer.begin() + m_fftBufferFill; begin < end; ++begin) {
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*it++ = Complex(begin->real() / m_scalef, begin->imag() / m_scalef);
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}
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m_fftBufferFill += todo;
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m_needMoreSamples = true;
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}
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}
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m_mutex.unlock();
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}
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void SpectrumVis::processFFT(bool positiveOnly)
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{
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int fftMin = (m_frequencyZoomFactor == 1.0f) ?
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0 : (m_frequencyZoomPos - (0.5f / m_frequencyZoomFactor)) * m_settings.m_fftSize;
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int fftMax = (m_frequencyZoomFactor == 1.0f) ?
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m_settings.m_fftSize : (m_frequencyZoomPos + (0.5f / m_frequencyZoomFactor)) * m_settings.m_fftSize;
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// apply fft window (and copy from m_fftBuffer to m_fftIn)
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m_window.apply(&m_fftBuffer[0], m_fft->in());
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// calculate FFT
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m_fft->transform();
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// extract power spectrum and reorder buckets
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const Complex* fftOut = m_fft->out();
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Complex c;
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Real v;
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std::size_t halfSize = m_settings.m_fftSize / 2;
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if (m_settings.m_averagingMode == SpectrumSettings::AvgModeNone)
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{
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m_specMax = 0.0f;
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if ( positiveOnly )
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{
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for (std::size_t i = 0; i < halfSize; i++)
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{
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c = fftOut[i];
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v = c.real() * c.real() + c.imag() * c.imag();
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m_psd[i] = v/m_powFFTDiv;
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m_specMax = v > m_specMax ? v : m_specMax;
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v = m_settings.m_linear ? v/m_powFFTDiv : m_mult * log2fapprox(v) + m_ofs;
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m_powerSpectrum[i * 2] = v;
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m_powerSpectrum[i * 2 + 1] = v;
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}
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}
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else
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{
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for (std::size_t i = 0; i < halfSize; i++)
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{
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c = fftOut[i + halfSize];
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v = c.real() * c.real() + c.imag() * c.imag();
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m_psd[i] = v/m_powFFTDiv;
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m_specMax = v > m_specMax ? v : m_specMax;
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v = m_settings.m_linear ? v/m_powFFTDiv : m_mult * log2fapprox(v) + m_ofs;
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m_powerSpectrum[i] = v;
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c = fftOut[i];
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v = c.real() * c.real() + c.imag() * c.imag();
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m_psd[i + halfSize] = v/m_powFFTDiv;
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m_specMax = v > m_specMax ? v : m_specMax;
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v = m_settings.m_linear ? v/m_powFFTDiv : m_mult * log2fapprox(v) + m_ofs;
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m_powerSpectrum[i + halfSize] = v;
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}
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}
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// send new data to visualisation
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if (m_glSpectrum)
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{
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m_glSpectrum->newSpectrum(
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&m_powerSpectrum.data()[fftMin],
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fftMax - fftMin,
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m_settings.m_fftSize
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);
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}
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// web socket spectrum connections
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if (m_wsSpectrum.socketOpened())
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{
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m_wsSpectrum.newSpectrum(
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m_powerSpectrum,
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m_settings.m_fftSize,
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m_centerFrequency,
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m_sampleRate,
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m_settings.m_linear,
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m_settings.m_ssb,
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m_settings.m_usb
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);
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}
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}
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else if (m_settings.m_averagingMode == SpectrumSettings::AvgModeMoving)
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{
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m_specMax = 0.0f;
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|
|
|
if ( positiveOnly )
|
|
{
|
|
for (std::size_t i = 0; i < halfSize; i++)
|
|
{
|
|
c = fftOut[i];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
v = m_movingAverage.storeAndGetAvg(v, i);
|
|
m_psd[i] = v/m_powFFTDiv;
|
|
m_specMax = v > m_specMax ? v : m_specMax;
|
|
v = m_settings.m_linear ? v/m_powFFTDiv : m_mult * log2fapprox(v) + m_ofs;
|
|
m_powerSpectrum[i * 2] = v;
|
|
m_powerSpectrum[i * 2 + 1] = v;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (std::size_t i = 0; i < halfSize; i++)
|
|
{
|
|
c = fftOut[i + halfSize];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
v = m_movingAverage.storeAndGetAvg(v, i+halfSize);
|
|
m_psd[i] = v/m_powFFTDiv;
|
|
m_specMax = v > m_specMax ? v : m_specMax;
|
|
v = m_settings.m_linear ? v/m_powFFTDiv : m_mult * log2fapprox(v) + m_ofs;
|
|
m_powerSpectrum[i] = v;
|
|
|
|
c = fftOut[i];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
v = m_movingAverage.storeAndGetAvg(v, i);
|
|
m_psd[i + halfSize] = v/m_powFFTDiv;
|
|
m_specMax = v > m_specMax ? v : m_specMax;
|
|
v = m_settings.m_linear ? v/m_powFFTDiv : m_mult * log2fapprox(v) + m_ofs;
|
|
m_powerSpectrum[i + halfSize] = v;
|
|
}
|
|
}
|
|
|
|
// send new data to visualisation
|
|
if (m_glSpectrum)
|
|
{
|
|
m_glSpectrum->newSpectrum(
|
|
&m_powerSpectrum.data()[fftMin],
|
|
fftMax - fftMin,
|
|
m_settings.m_fftSize
|
|
);
|
|
}
|
|
|
|
// web socket spectrum connections
|
|
if (m_wsSpectrum.socketOpened())
|
|
{
|
|
m_wsSpectrum.newSpectrum(
|
|
m_powerSpectrum,
|
|
m_settings.m_fftSize,
|
|
m_centerFrequency,
|
|
m_sampleRate,
|
|
m_settings.m_linear,
|
|
m_settings.m_ssb,
|
|
m_settings.m_usb
|
|
);
|
|
}
|
|
|
|
m_movingAverage.nextAverage();
|
|
}
|
|
else if (m_settings.m_averagingMode == SpectrumSettings::AvgModeFixed)
|
|
{
|
|
double avg;
|
|
Real specMax = 0.0f;
|
|
|
|
if ( positiveOnly )
|
|
{
|
|
for (std::size_t i = 0; i < halfSize; i++)
|
|
{
|
|
c = fftOut[i];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
|
|
// result available
|
|
if (m_fixedAverage.storeAndGetAvg(avg, v, i))
|
|
{
|
|
m_psd[i] = avg/m_powFFTDiv;
|
|
specMax = avg > specMax ? avg : specMax;
|
|
avg = m_settings.m_linear ? avg/m_powFFTDiv : m_mult * log2fapprox(avg) + m_ofs;
|
|
m_powerSpectrum[i * 2] = avg;
|
|
m_powerSpectrum[i * 2 + 1] = avg;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (std::size_t i = 0; i < halfSize; i++)
|
|
{
|
|
c = fftOut[i + halfSize];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
|
|
// result available
|
|
if (m_fixedAverage.storeAndGetAvg(avg, v, i+halfSize))
|
|
{
|
|
m_psd[i] = avg/m_powFFTDiv;
|
|
specMax = avg > specMax ? avg : specMax;
|
|
avg = m_settings.m_linear ? avg/m_powFFTDiv : m_mult * log2fapprox(avg) + m_ofs;
|
|
m_powerSpectrum[i] = avg;
|
|
}
|
|
|
|
c = fftOut[i];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
|
|
// result available
|
|
if (m_fixedAverage.storeAndGetAvg(avg, v, i))
|
|
{
|
|
m_psd[i + halfSize] = avg/m_powFFTDiv;
|
|
specMax = avg > specMax ? avg : specMax;
|
|
avg = m_settings.m_linear ? avg/m_powFFTDiv : m_mult * log2fapprox(avg) + m_ofs;
|
|
m_powerSpectrum[i + halfSize] = avg;
|
|
}
|
|
}
|
|
}
|
|
|
|
// result available
|
|
if (m_fixedAverage.nextAverage())
|
|
{
|
|
m_specMax = specMax;
|
|
|
|
// send new data to visualisation
|
|
if (m_glSpectrum)
|
|
{
|
|
m_glSpectrum->newSpectrum(
|
|
&m_powerSpectrum.data()[fftMin],
|
|
fftMax - fftMin,
|
|
m_settings.m_fftSize
|
|
);
|
|
}
|
|
|
|
// web socket spectrum connections
|
|
if (m_wsSpectrum.socketOpened())
|
|
{
|
|
m_wsSpectrum.newSpectrum(
|
|
m_powerSpectrum,
|
|
m_settings.m_fftSize,
|
|
m_centerFrequency,
|
|
m_sampleRate,
|
|
m_settings.m_linear,
|
|
m_settings.m_ssb,
|
|
m_settings.m_usb
|
|
);
|
|
}
|
|
}
|
|
}
|
|
else if (m_settings.m_averagingMode == SpectrumSettings::AvgModeMax)
|
|
{
|
|
double max;
|
|
Real specMax = 0.0f;
|
|
|
|
if ( positiveOnly )
|
|
{
|
|
for (std::size_t i = 0; i < halfSize; i++)
|
|
{
|
|
c = fftOut[i];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
|
|
// result available
|
|
if (m_max.storeAndGetMax(max, v, i))
|
|
{
|
|
m_psd[i] = max/m_powFFTDiv;
|
|
specMax = max > specMax ? max : specMax;
|
|
max = m_settings.m_linear ? max/m_powFFTDiv : m_mult * log2fapprox(max) + m_ofs;
|
|
m_powerSpectrum[i * 2] = max;
|
|
m_powerSpectrum[i * 2 + 1] = max;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (std::size_t i = 0; i < halfSize; i++)
|
|
{
|
|
c = fftOut[i + halfSize];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
|
|
// result available
|
|
if (m_max.storeAndGetMax(max, v, i+halfSize))
|
|
{
|
|
m_psd[i] = max/m_powFFTDiv;
|
|
specMax = max > specMax ? max : specMax;
|
|
max = m_settings.m_linear ? max/m_powFFTDiv : m_mult * log2fapprox(max) + m_ofs;
|
|
m_powerSpectrum[i] = max;
|
|
}
|
|
|
|
c = fftOut[i];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
|
|
// result available
|
|
if (m_max.storeAndGetMax(max, v, i))
|
|
{
|
|
m_psd[i + halfSize] = max/m_powFFTDiv;
|
|
specMax = max > specMax ? max : specMax;
|
|
max = m_settings.m_linear ? max/m_powFFTDiv : m_mult * log2fapprox(max) + m_ofs;
|
|
m_powerSpectrum[i + halfSize] = max;
|
|
}
|
|
}
|
|
}
|
|
|
|
// result available
|
|
if (m_max.nextMax())
|
|
{
|
|
m_specMax = specMax;
|
|
|
|
// send new data to visualisation
|
|
if (m_glSpectrum)
|
|
{
|
|
m_glSpectrum->newSpectrum(
|
|
&m_powerSpectrum.data()[fftMin],
|
|
fftMax - fftMin,
|
|
m_settings.m_fftSize
|
|
);
|
|
}
|
|
|
|
// web socket spectrum connections
|
|
if (m_wsSpectrum.socketOpened())
|
|
{
|
|
m_wsSpectrum.newSpectrum(
|
|
m_powerSpectrum,
|
|
m_settings.m_fftSize,
|
|
m_centerFrequency,
|
|
m_sampleRate,
|
|
m_settings.m_linear,
|
|
m_settings.m_ssb,
|
|
m_settings.m_usb
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void SpectrumVis::getZoomedPSDCopy(std::vector<Real>& copy) const
|
|
{
|
|
int fftMin = (m_frequencyZoomFactor == 1.0f) ?
|
|
0 : (m_frequencyZoomPos - (0.5f / m_frequencyZoomFactor)) * m_settings.m_fftSize;
|
|
int fftMax = (m_frequencyZoomFactor == 1.0f) ?
|
|
m_settings.m_fftSize : (m_frequencyZoomPos + (0.5f / m_frequencyZoomFactor)) * m_settings.m_fftSize;
|
|
copy.assign(m_psd.begin() + fftMin, m_psd.begin() + fftMax);
|
|
}
|
|
|
|
void SpectrumVis::start()
|
|
{
|
|
setRunning(true);
|
|
|
|
if (getMessageQueueToGUI()) // propagate to GUI if any
|
|
{
|
|
MsgStartStop *msg = MsgStartStop::create(true);
|
|
getMessageQueueToGUI()->push(msg);
|
|
}
|
|
}
|
|
|
|
void SpectrumVis::stop()
|
|
{
|
|
setRunning(false);
|
|
|
|
if (getMessageQueueToGUI()) // propagate to GUI if any
|
|
{
|
|
MsgStartStop *msg = MsgStartStop::create(false);
|
|
getMessageQueueToGUI()->push(msg);
|
|
}
|
|
}
|
|
|
|
void SpectrumVis::pushMessage(Message *msg)
|
|
{
|
|
m_inputMessageQueue.push(msg);
|
|
}
|
|
|
|
QString SpectrumVis::getSinkName()
|
|
{
|
|
return objectName();
|
|
}
|
|
|
|
void SpectrumVis::handleInputMessages()
|
|
{
|
|
Message* message;
|
|
|
|
while ((message = m_inputMessageQueue.pop()) != 0)
|
|
{
|
|
if (handleMessage(*message)) {
|
|
delete message;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool SpectrumVis::handleMessage(const Message& message)
|
|
{
|
|
if (DSPSignalNotification::match(message))
|
|
{
|
|
// This is coming from device engine and will apply to main spectrum
|
|
DSPSignalNotification& notif = (DSPSignalNotification&) message;
|
|
qDebug() << "SpectrumVis::handleMessage: DSPSignalNotification:"
|
|
<< " centerFrequency: " << notif.getCenterFrequency()
|
|
<< " sampleRate: " << notif.getSampleRate();
|
|
handleConfigureDSP(notif.getCenterFrequency(), notif.getSampleRate());
|
|
return true;
|
|
}
|
|
else if (MsgConfigureSpectrumVis::match(message))
|
|
{
|
|
MsgConfigureSpectrumVis& cfg = (MsgConfigureSpectrumVis&) message;
|
|
qDebug() << "SpectrumVis::handleMessage: MsgConfigureSpectrumVis";
|
|
applySettings(cfg.getSettings(), cfg.getForce());
|
|
return true;
|
|
}
|
|
else if (MsgConfigureScalingFactor::match(message))
|
|
{
|
|
MsgConfigureScalingFactor& conf = (MsgConfigureScalingFactor&) message;
|
|
handleScalef(conf.getScalef());
|
|
return true;
|
|
}
|
|
else if (MsgConfigureWSpectrumOpenClose::match(message))
|
|
{
|
|
MsgConfigureWSpectrumOpenClose& conf = (MsgConfigureWSpectrumOpenClose&) message;
|
|
handleWSOpenClose(conf.getOpenClose());
|
|
return true;
|
|
}
|
|
else if (MsgConfigureWSpectrum::match(message)) {
|
|
MsgConfigureWSpectrum& conf = (MsgConfigureWSpectrum&) message;
|
|
handleConfigureWSSpectrum(conf.getAddress(), conf.getPort());
|
|
return true;
|
|
}
|
|
else if (MsgStartStop::match(message))
|
|
{
|
|
MsgStartStop& cmd = (MsgStartStop&) message;
|
|
setRunning(cmd.getStartStop());
|
|
return true;
|
|
}
|
|
else if (MsgFrequencyZooming::match(message))
|
|
{
|
|
MsgFrequencyZooming& cmd = (MsgFrequencyZooming&) message;
|
|
m_frequencyZoomFactor = cmd.getFrequencyZoomFactor();
|
|
m_frequencyZoomPos = cmd.getFrequencyZoomPos();
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void SpectrumVis::applySettings(const SpectrumSettings& settings, bool force)
|
|
{
|
|
QMutexLocker mutexLocker(&m_mutex);
|
|
|
|
int fftSize = settings.m_fftSize > (1<<SpectrumSettings::m_log2FFTSizeMax) ?
|
|
(1<<SpectrumSettings::m_log2FFTSizeMax) :
|
|
settings.m_fftSize < (1<<SpectrumSettings::m_log2FFTSizeMin) ?
|
|
(1<<SpectrumSettings::m_log2FFTSizeMin) :
|
|
settings.m_fftSize;
|
|
|
|
qDebug() << "SpectrumVis::applySettings:"
|
|
<< " m_fftSize: " << fftSize
|
|
<< " m_fftWindow: " << settings.m_fftWindow
|
|
<< " m_fftOverlap: " << settings.m_fftOverlap
|
|
<< " m_averagingIndex: " << settings.m_averagingIndex
|
|
<< " m_averagingMode: " << settings.m_averagingMode
|
|
<< " m_refLevel: " << settings.m_refLevel
|
|
<< " m_powerRange: " << settings.m_powerRange
|
|
<< " m_fpsPeriodMs: " << settings.m_fpsPeriodMs
|
|
<< " m_linear: " << settings.m_linear
|
|
<< " m_ssb: " << settings.m_ssb
|
|
<< " m_usb: " << settings.m_usb
|
|
<< " m_wsSpectrumAddress: " << settings.m_wsSpectrumAddress
|
|
<< " m_wsSpectrumPort: " << settings.m_wsSpectrumPort
|
|
<< " force: " << force;
|
|
|
|
if ((fftSize != m_settings.m_fftSize) || force)
|
|
{
|
|
FFTFactory *fftFactory = DSPEngine::instance()->getFFTFactory();
|
|
|
|
// release previous engine allocation if any
|
|
if (m_fft) {
|
|
fftFactory->releaseEngine(m_settings.m_fftSize, false, m_fftEngineSequence);
|
|
}
|
|
|
|
m_fftEngineSequence = fftFactory->getEngine(fftSize, false, &m_fft);
|
|
m_ofs = 20.0f * log10f(1.0f / fftSize);
|
|
m_powFFTDiv = fftSize * fftSize;
|
|
|
|
if (fftSize > m_settings.m_fftSize)
|
|
{
|
|
m_fftBuffer.resize(fftSize);
|
|
m_powerSpectrum.resize(fftSize);
|
|
m_psd.resize(fftSize);
|
|
}
|
|
}
|
|
|
|
if ((fftSize != m_settings.m_fftSize)
|
|
|| (settings.m_fftWindow != m_settings.m_fftWindow) || force)
|
|
{
|
|
m_window.create(settings.m_fftWindow, fftSize);
|
|
}
|
|
|
|
if ((fftSize != m_settings.m_fftSize)
|
|
|| (settings.m_fftOverlap != m_settings.m_fftOverlap) || force)
|
|
{
|
|
m_overlapSize = settings.m_fftOverlap < 0 ? 0 :
|
|
settings.m_fftOverlap < fftSize ? settings.m_fftOverlap : (fftSize - 1);
|
|
m_refillSize = fftSize - m_overlapSize;
|
|
m_fftBufferFill = m_overlapSize;
|
|
}
|
|
|
|
if ((fftSize != m_settings.m_fftSize)
|
|
|| (settings.m_averagingIndex != m_settings.m_averagingIndex)
|
|
|| (settings.m_averagingMode != m_settings.m_averagingMode) || force)
|
|
{
|
|
unsigned int averagingValue = SpectrumSettings::getAveragingValue(settings.m_averagingIndex, settings.m_averagingMode);
|
|
averagingValue = averagingValue > SpectrumSettings::getMaxAveragingValue(fftSize, settings.m_averagingMode) ?
|
|
SpectrumSettings::getMaxAveragingValue(fftSize, settings.m_averagingMode) : averagingValue; // Capping to avoid out of memory condition
|
|
m_movingAverage.resize(fftSize, averagingValue);
|
|
m_fixedAverage.resize(fftSize, averagingValue);
|
|
m_max.resize(fftSize, averagingValue);
|
|
}
|
|
|
|
if ((settings.m_wsSpectrumAddress != m_settings.m_wsSpectrumAddress)
|
|
|| (settings.m_wsSpectrumPort != m_settings.m_wsSpectrumPort) || force) {
|
|
handleConfigureWSSpectrum(settings.m_wsSpectrumAddress, settings.m_wsSpectrumPort);
|
|
}
|
|
|
|
m_settings = settings;
|
|
m_settings.m_fftSize = fftSize;
|
|
|
|
if (m_guiMessageQueue)
|
|
{
|
|
MsgConfigureSpectrumVis *msg = MsgConfigureSpectrumVis::create(m_settings, false);
|
|
m_guiMessageQueue->push(msg);
|
|
}
|
|
}
|
|
|
|
void SpectrumVis::handleConfigureDSP(uint64_t centerFrequency, int sampleRate)
|
|
{
|
|
QMutexLocker mutexLocker(&m_mutex);
|
|
m_centerFrequency = centerFrequency;
|
|
m_sampleRate = sampleRate;
|
|
}
|
|
|
|
void SpectrumVis::handleScalef(Real scalef)
|
|
{
|
|
QMutexLocker mutexLocker(&m_mutex);
|
|
m_scalef = scalef;
|
|
}
|
|
|
|
void SpectrumVis::handleWSOpenClose(bool openClose)
|
|
{
|
|
QMutexLocker mutexLocker(&m_mutex);
|
|
|
|
if (openClose) {
|
|
m_wsSpectrum.openSocket();
|
|
} else {
|
|
m_wsSpectrum.closeSocket();
|
|
}
|
|
}
|
|
|
|
void SpectrumVis::handleConfigureWSSpectrum(const QString& address, uint16_t port)
|
|
{
|
|
m_wsSpectrum.setListeningAddress(address);
|
|
m_wsSpectrum.setPort(port);
|
|
|
|
if (m_wsSpectrum.socketOpened())
|
|
{
|
|
m_wsSpectrum.closeSocket();
|
|
m_wsSpectrum.openSocket();
|
|
}
|
|
}
|
|
|
|
int SpectrumVis::webapiSpectrumSettingsGet(SWGSDRangel::SWGGLSpectrum& response, QString& errorMessage) const
|
|
{
|
|
(void) errorMessage;
|
|
response.init();
|
|
webapiFormatSpectrumSettings(response, m_settings);
|
|
return 200;
|
|
}
|
|
|
|
int SpectrumVis::webapiSpectrumSettingsPutPatch(
|
|
bool force,
|
|
const QStringList& spectrumSettingsKeys,
|
|
SWGSDRangel::SWGGLSpectrum& response, // query + response
|
|
QString& errorMessage)
|
|
{
|
|
(void) errorMessage;
|
|
SpectrumSettings settings = m_settings;
|
|
webapiUpdateSpectrumSettings(settings, spectrumSettingsKeys, response);
|
|
|
|
MsgConfigureSpectrumVis *msg = MsgConfigureSpectrumVis::create(settings, force);
|
|
m_inputMessageQueue.push(msg);
|
|
|
|
if (getMessageQueueToGUI()) // forward to GUI if any
|
|
{
|
|
MsgConfigureSpectrumVis *msgToGUI = MsgConfigureSpectrumVis::create(settings, force);
|
|
getMessageQueueToGUI()->push(msgToGUI);
|
|
}
|
|
|
|
webapiFormatSpectrumSettings(response, settings);
|
|
return 200;
|
|
}
|
|
|
|
int SpectrumVis::webapiSpectrumServerGet(SWGSDRangel::SWGSpectrumServer& response, QString& errorMessage) const
|
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{
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(void) errorMessage;
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bool serverRunning = m_wsSpectrum.socketOpened();
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QList<QHostAddress> peerHosts;
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QList<quint16> peerPorts;
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m_wsSpectrum.getPeers(peerHosts, peerPorts);
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response.init();
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response.setRun(serverRunning ? 1 : 0);
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QHostAddress serverAddress = m_wsSpectrum.getListeningAddress();
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if (serverAddress != QHostAddress::Null) {
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response.setListeningAddress(new QString(serverAddress.toString()));
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}
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uint16_t serverPort = m_wsSpectrum.getListeningPort();
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if (serverPort != 0) {
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response.setListeningPort(serverPort);
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}
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if (peerHosts.size() > 0)
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{
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response.setClients(new QList<SWGSDRangel::SWGSpectrumServer_clients*>);
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for (int i = 0; i < peerHosts.size(); i++)
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{
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response.getClients()->push_back(new SWGSDRangel::SWGSpectrumServer_clients);
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response.getClients()->back()->setAddress(new QString(peerHosts.at(i).toString()));
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response.getClients()->back()->setPort(peerPorts.at(i));
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}
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}
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return 200;
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}
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int SpectrumVis::webapiSpectrumServerPost(SWGSDRangel::SWGSuccessResponse& response, QString& errorMessage)
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{
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(void) errorMessage;
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MsgConfigureWSpectrumOpenClose *msg = MsgConfigureWSpectrumOpenClose::create(true);
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m_inputMessageQueue.push(msg);
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if (getMessageQueueToGUI()) // forward to GUI if any
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{
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MsgConfigureWSpectrumOpenClose *msgToGui = MsgConfigureWSpectrumOpenClose::create(true);
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getMessageQueueToGUI()->push(msgToGui);
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}
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|
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response.setMessage(new QString("Websocket spectrum server started"));
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return 200;
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}
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|
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int SpectrumVis::webapiSpectrumServerDelete(SWGSDRangel::SWGSuccessResponse& response, QString& errorMessage)
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{
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(void) errorMessage;
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MsgConfigureWSpectrumOpenClose *msg = MsgConfigureWSpectrumOpenClose::create(false);
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m_inputMessageQueue.push(msg);
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|
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if (getMessageQueueToGUI()) // forward to GUI if any
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|
{
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MsgConfigureWSpectrumOpenClose *msgToGui = MsgConfigureWSpectrumOpenClose::create(false);
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getMessageQueueToGUI()->push(msgToGui);
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}
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|
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response.setMessage(new QString("Websocket spectrum server stopped"));
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return 200;
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}
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|
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void SpectrumVis::webapiFormatSpectrumSettings(SWGSDRangel::SWGGLSpectrum& response, const SpectrumSettings& settings)
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|
{
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|
settings.formatTo(&response);
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}
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|
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void SpectrumVis::webapiUpdateSpectrumSettings(
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SpectrumSettings& settings,
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const QStringList& spectrumSettingsKeys,
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|
SWGSDRangel::SWGGLSpectrum& response)
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|
{
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|
QStringList prefixedKeys;
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|
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|
for (const auto &key : spectrumSettingsKeys) {
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|
prefixedKeys.append(tr("spectrumConfig.%1").arg(key));
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|
}
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|
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|
settings.updateFrom(prefixedKeys, &response);
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|
}
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|
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|
// To calculate power, the usual equation:
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|
// 10*log10(V1/V2), where V2=fftSize^2
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|
// is calculated using log2 instead, with:
|
|
// ofs=20.0f * log10f(1.0f / fftSize)
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|
// mult=(10.0f / log2(10.0f))
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|
// dB = m_mult * log2f(v) + m_ofs
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|
// However, while the gcc version of log2f is twice as fast as log10f,
|
|
// MSVC version is 6x slower.
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|
// Also, we don't need full accuracy of log2f for calculating the power for the spectrum,
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|
// so we can use the following approximation to get a good speed-up for both compilers:
|
|
// https://www.vplesko.com/posts/replacing_log2f.html
|
|
// https://www.vplesko.com/assets/replacing_log2f/main.c.txt
|
|
float SpectrumVis::log2fapprox(float x) const
|
|
{
|
|
// IEEE 754 representation constants.
|
|
const int32_t mantissaLen = 23;
|
|
const int32_t mantissaMask = (1 << mantissaLen) - 1;
|
|
const int32_t baseExponent = -127;
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|
|
|
// Reinterpret x as int in a standard compliant way.
|
|
int32_t xi;
|
|
memcpy(&xi, &x, sizeof(xi));
|
|
|
|
// Calculate exponent of x.
|
|
float e = (float)((xi >> mantissaLen) + baseExponent);
|
|
|
|
// Calculate mantissa of x. It will be in range [1, 2).
|
|
float m;
|
|
int32_t mxi = (xi & mantissaMask) | ((-baseExponent) << mantissaLen);
|
|
memcpy(&m, &mxi, sizeof(m));
|
|
|
|
// Use Remez algorithm-generated approximation polynomial
|
|
// for log2(a) where a is in range [1, 2].
|
|
float l = 0.15824871f;
|
|
l = l * m + -1.051875f;
|
|
l = l * m + 3.0478842f;
|
|
l = l * m + -2.1536207f;
|
|
|
|
// Add exponent to the calculation.
|
|
// Final log is log2(m*2^e)=log2(m)+e.
|
|
l += e;
|
|
|
|
return l;
|
|
}
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