mirror of
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542 lines
15 KiB
C++
542 lines
15 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2016 F4EXB //
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// written by Edouard Griffiths //
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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 <stdio.h>
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#include <QDebug>
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#include <QThread>
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#include "dspdevicesinkengine.h"
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#include "dsp/basebandsamplesource.h"
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#include "dsp/basebandsamplesink.h"
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#include "dsp/devicesamplesink.h"
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#include "dsp/dspcommands.h"
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#include "samplesourcefifodb.h"
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DSPDeviceSinkEngine::DSPDeviceSinkEngine(uint32_t uid, QObject* parent) :
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QThread(parent),
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m_uid(uid),
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m_state(StNotStarted),
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m_deviceSampleSink(nullptr),
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m_sampleSinkSequence(0),
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m_basebandSampleSources(),
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m_spectrumSink(nullptr),
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m_sampleRate(0),
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m_centerFrequency(0)
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{
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connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()), Qt::QueuedConnection);
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connect(&m_syncMessenger, SIGNAL(messageSent()), this, SLOT(handleSynchronousMessages()), Qt::QueuedConnection);
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moveToThread(this);
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}
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DSPDeviceSinkEngine::~DSPDeviceSinkEngine()
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{
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stop();
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wait();
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}
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void DSPDeviceSinkEngine::run()
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{
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qDebug() << "DSPDeviceSinkEngine::run";
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m_state = StIdle;
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exec();
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}
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void DSPDeviceSinkEngine::start()
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{
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qDebug() << "DSPDeviceSinkEngine::start";
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QThread::start();
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}
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void DSPDeviceSinkEngine::stop()
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{
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qDebug() << "DSPDeviceSinkEngine::stop";
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gotoIdle();
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m_state = StNotStarted;
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QThread::exit();
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// DSPExit cmd;
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// m_syncMessenger.sendWait(cmd);
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}
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bool DSPDeviceSinkEngine::initGeneration()
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{
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qDebug() << "DSPDeviceSinkEngine::initGeneration";
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DSPGenerationInit cmd;
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return m_syncMessenger.sendWait(cmd) == StReady;
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}
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bool DSPDeviceSinkEngine::startGeneration()
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{
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qDebug() << "DSPDeviceSinkEngine::startGeneration";
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DSPGenerationStart cmd;
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return m_syncMessenger.sendWait(cmd) == StRunning;
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}
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void DSPDeviceSinkEngine::stopGeneration()
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{
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qDebug() << "DSPDeviceSinkEngine::stopGeneration";
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DSPGenerationStop cmd;
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m_syncMessenger.storeMessage(cmd);
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handleSynchronousMessages();
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}
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void DSPDeviceSinkEngine::setSink(DeviceSampleSink* sink)
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{
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qDebug() << "DSPDeviceSinkEngine::setSink";
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DSPSetSink cmd(sink);
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m_syncMessenger.sendWait(cmd);
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}
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void DSPDeviceSinkEngine::setSinkSequence(int sequence)
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{
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qDebug("DSPDeviceSinkEngine::setSinkSequence: seq: %d", sequence);
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m_sampleSinkSequence = sequence;
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}
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void DSPDeviceSinkEngine::addChannelSource(BasebandSampleSource* source)
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{
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qDebug() << "DSPDeviceSinkEngine::addChannelSource: " << source->objectName().toStdString().c_str();
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DSPAddBasebandSampleSource cmd(source);
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m_syncMessenger.sendWait(cmd);
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}
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void DSPDeviceSinkEngine::removeChannelSource(BasebandSampleSource* source)
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{
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qDebug() << "DSPDeviceSinkEngine::removeChannelSource: " << source->objectName().toStdString().c_str();
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DSPRemoveBasebandSampleSource cmd(source);
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m_syncMessenger.sendWait(cmd);
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}
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void DSPDeviceSinkEngine::addSpectrumSink(BasebandSampleSink* spectrumSink)
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{
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qDebug() << "DSPDeviceSinkEngine::addSpectrumSink: " << spectrumSink->objectName().toStdString().c_str();
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DSPAddSpectrumSink cmd(spectrumSink);
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m_syncMessenger.sendWait(cmd);
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}
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void DSPDeviceSinkEngine::removeSpectrumSink(BasebandSampleSink* spectrumSink)
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{
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qDebug() << "DSPDeviceSinkEngine::removeSpectrumSink: " << spectrumSink->objectName().toStdString().c_str();
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DSPRemoveSpectrumSink cmd(spectrumSink);
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m_syncMessenger.sendWait(cmd);
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}
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QString DSPDeviceSinkEngine::errorMessage()
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{
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qDebug() << "DSPDeviceSinkEngine::errorMessage";
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DSPGetErrorMessage cmd;
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m_syncMessenger.sendWait(cmd);
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return cmd.getErrorMessage();
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}
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QString DSPDeviceSinkEngine::sinkDeviceDescription()
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{
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qDebug() << "DSPDeviceSinkEngine::sinkDeviceDescription";
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DSPGetSinkDeviceDescription cmd;
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m_syncMessenger.sendWait(cmd);
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return cmd.getDeviceDescription();
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}
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void DSPDeviceSinkEngine::workSampleFifo()
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{
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SampleSourceFifo *sourceFifo = m_deviceSampleSink->getSampleFifo();
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if (!sourceFifo) {
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return;
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}
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SampleVector& data = sourceFifo->getData();
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unsigned int iPart1Begin, iPart1End, iPart2Begin, iPart2End;
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unsigned int remainder = sourceFifo->remainder();
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while ((remainder > 0) && (m_inputMessageQueue.size() == 0))
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{
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sourceFifo->write(remainder, iPart1Begin, iPart1End, iPart2Begin, iPart2End);
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if (iPart1Begin != iPart1End) {
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workSamples(data, iPart1Begin, iPart1End);
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}
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if (iPart2Begin != iPart2End) {
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workSamples(data, iPart2Begin, iPart2End);
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}
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remainder = sourceFifo->remainder();
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}
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}
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void DSPDeviceSinkEngine::workSamples(SampleVector& data, unsigned int iBegin, unsigned int iEnd)
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{
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unsigned int nbSamples = iEnd - iBegin;
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SampleVector::iterator begin = data.begin() + iBegin;
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if (m_basebandSampleSources.size() == 0)
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{
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m_sourceZeroBuffer.allocate(nbSamples, Sample{0,0});
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std::copy(
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m_sourceZeroBuffer.m_vector.begin(),
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m_sourceZeroBuffer.m_vector.begin() + nbSamples,
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data.begin() + iBegin
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);
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}
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else if (m_basebandSampleSources.size() == 1)
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{
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BasebandSampleSource *source = m_basebandSampleSources.front();
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source->pull(begin, nbSamples);
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}
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else
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{
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m_sourceSampleBuffer.allocate(nbSamples);
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SampleVector::iterator sBegin = m_sourceSampleBuffer.m_vector.begin();
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BasebandSampleSources::const_iterator srcIt = m_basebandSampleSources.begin();
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BasebandSampleSource *source = *srcIt;
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source->pull(begin, nbSamples);
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srcIt++;
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m_sumIndex = 1;
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for (; srcIt != m_basebandSampleSources.end(); ++srcIt, m_sumIndex++)
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{
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source = *srcIt;
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source->pull(sBegin, nbSamples);
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std::transform(
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sBegin,
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sBegin + nbSamples,
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data.begin() + iBegin,
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data.begin() + iBegin,
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[this](Sample& a, const Sample& b) -> Sample {
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int den = m_sumIndex + 1; // at each stage scale sum by n/n+1 and input by 1/n+1
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int nom = m_sumIndex; // so that final sum is scaled by N (number of channels)
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return Sample{
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a.real()/den + nom*(b.real()/den),
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a.imag()/den + nom*(b.imag()/den)
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};
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}
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);
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}
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}
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// possibly feed data to spectrum sink
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if (m_spectrumSink) {
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m_spectrumSink->feed(data.begin() + iBegin, data.begin() + iEnd, false);
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}
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}
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// notStarted -> idle -> init -> running -+
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// ^ |
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// +-----------------------+
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DSPDeviceSinkEngine::State DSPDeviceSinkEngine::gotoIdle()
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{
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qDebug() << "DSPDeviceSinkEngine::gotoIdle";
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switch(m_state) {
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case StNotStarted:
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return StNotStarted;
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case StIdle:
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case StError:
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return StIdle;
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case StReady:
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case StRunning:
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break;
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}
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if(m_deviceSampleSink == 0)
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{
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return StIdle;
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}
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// stop everything
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m_deviceSampleSink->stop();
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for(BasebandSampleSources::const_iterator it = m_basebandSampleSources.begin(); it != m_basebandSampleSources.end(); it++)
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{
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qDebug() << "DSPDeviceSinkEngine::gotoIdle: stopping " << (*it)->objectName().toStdString().c_str();
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(*it)->stop();
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}
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m_deviceDescription.clear();
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m_sampleRate = 0;
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return StIdle;
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}
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DSPDeviceSinkEngine::State DSPDeviceSinkEngine::gotoInit()
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{
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switch(m_state) {
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case StNotStarted:
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return StNotStarted;
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case StRunning: // FIXME: assumes it goes first through idle state. Could we get back to init from running directly?
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return StRunning;
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case StReady:
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return StReady;
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case StIdle:
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case StError:
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break;
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}
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if (m_deviceSampleSink == 0)
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{
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return gotoError("DSPDeviceSinkEngine::gotoInit: No sample source configured");
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}
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// init: pass sample rate and center frequency to all sample rate and/or center frequency dependent sinks and wait for completion
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m_deviceDescription = m_deviceSampleSink->getDeviceDescription();
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m_centerFrequency = m_deviceSampleSink->getCenterFrequency();
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m_sampleRate = m_deviceSampleSink->getSampleRate();
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qDebug() << "DSPDeviceSinkEngine::gotoInit: "
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<< " m_deviceDescription: " << m_deviceDescription.toStdString().c_str()
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<< " sampleRate: " << m_sampleRate
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<< " centerFrequency: " << m_centerFrequency;
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DSPSignalNotification notif(m_sampleRate, m_centerFrequency);
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for (BasebandSampleSources::const_iterator it = m_basebandSampleSources.begin(); it != m_basebandSampleSources.end(); ++it)
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{
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qDebug() << "DSPDeviceSinkEngine::gotoInit: initializing " << (*it)->objectName().toStdString().c_str();
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(*it)->handleMessage(notif);
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}
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if (m_spectrumSink) {
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m_spectrumSink->handleMessage(notif);
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}
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// pass data to listeners
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if (m_deviceSampleSink->getMessageQueueToGUI())
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{
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DSPSignalNotification* rep = new DSPSignalNotification(notif); // make a copy for the output queue
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m_deviceSampleSink->getMessageQueueToGUI()->push(rep);
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}
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return StReady;
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}
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DSPDeviceSinkEngine::State DSPDeviceSinkEngine::gotoRunning()
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{
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qDebug() << "DSPDeviceSinkEngine::gotoRunning";
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switch(m_state)
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{
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case StNotStarted:
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return StNotStarted;
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case StIdle:
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return StIdle;
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case StRunning:
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return StRunning;
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case StReady:
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case StError:
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break;
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}
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if(m_deviceSampleSink == 0) {
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return gotoError("DSPDeviceSinkEngine::gotoRunning: No sample source configured");
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}
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qDebug() << "DSPDeviceSinkEngine::gotoRunning: " << m_deviceDescription.toStdString().c_str() << " started";
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// Start everything
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if(!m_deviceSampleSink->start())
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{
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return gotoError("DSPDeviceSinkEngine::gotoRunning: Could not start sample sink");
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}
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for(BasebandSampleSources::const_iterator it = m_basebandSampleSources.begin(); it != m_basebandSampleSources.end(); it++)
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{
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qDebug() << "DSPDeviceSinkEngine::gotoRunning: starting " << (*it)->objectName().toStdString().c_str();
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(*it)->start();
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}
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if (m_spectrumSink)
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{
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m_spectrumSink->start();
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}
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qDebug() << "DSPDeviceSinkEngine::gotoRunning: input message queue pending: " << m_inputMessageQueue.size();
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return StRunning;
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}
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DSPDeviceSinkEngine::State DSPDeviceSinkEngine::gotoError(const QString& errorMessage)
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{
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qDebug() << "DSPDeviceSinkEngine::gotoError";
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m_errorMessage = errorMessage;
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m_deviceDescription.clear();
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m_state = StError;
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return StError;
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}
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void DSPDeviceSinkEngine::handleSetSink(DeviceSampleSink* sink)
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{
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m_deviceSampleSink = sink;
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if (!m_deviceSampleSink) { // Early leave
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return;
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}
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qDebug("DSPDeviceSinkEngine::handleSetSink: set %s", qPrintable(sink->getDeviceDescription()));
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QObject::connect(
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m_deviceSampleSink->getSampleFifo(),
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&SampleSourceFifo::dataRead,
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this,
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&DSPDeviceSinkEngine::handleData,
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Qt::QueuedConnection
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);
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}
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void DSPDeviceSinkEngine::handleData()
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{
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if (m_state == StRunning) {
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workSampleFifo();
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}
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}
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void DSPDeviceSinkEngine::handleSynchronousMessages()
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{
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Message *message = m_syncMessenger.getMessage();
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qDebug() << "DSPDeviceSinkEngine::handleSynchronousMessages: " << message->getIdentifier();
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if (DSPGenerationInit::match(*message))
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{
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m_state = gotoIdle();
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if(m_state == StIdle) {
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m_state = gotoInit(); // State goes ready if init is performed
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}
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}
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else if (DSPGenerationStart::match(*message))
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{
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if(m_state == StReady) {
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m_state = gotoRunning();
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}
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}
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else if (DSPGenerationStop::match(*message))
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{
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m_state = gotoIdle();
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}
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else if (DSPGetSinkDeviceDescription::match(*message))
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{
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((DSPGetSinkDeviceDescription*) message)->setDeviceDescription(m_deviceDescription);
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}
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else if (DSPGetErrorMessage::match(*message))
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{
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((DSPGetErrorMessage*) message)->setErrorMessage(m_errorMessage);
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}
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else if (DSPSetSink::match(*message)) {
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handleSetSink(((DSPSetSink*) message)->getSampleSink());
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}
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else if (DSPAddSpectrumSink::match(*message))
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{
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m_spectrumSink = ((DSPAddSpectrumSink*) message)->getSampleSink();
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}
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else if (DSPRemoveSpectrumSink::match(*message))
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{
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BasebandSampleSink* spectrumSink = ((DSPRemoveSpectrumSink*) message)->getSampleSink();
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if(m_state == StRunning) {
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spectrumSink->stop();
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}
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m_spectrumSink = nullptr;
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}
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else if (DSPAddBasebandSampleSource::match(*message))
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{
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BasebandSampleSource* source = ((DSPAddBasebandSampleSource*) message)->getSampleSource();
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m_basebandSampleSources.push_back(source);
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DSPSignalNotification notif(m_sampleRate, m_centerFrequency);
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source->handleMessage(notif);
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if (m_state == StRunning)
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{
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source->start();
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}
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}
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else if (DSPRemoveBasebandSampleSource::match(*message))
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{
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BasebandSampleSource* source = ((DSPRemoveBasebandSampleSource*) message)->getSampleSource();
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if(m_state == StRunning) {
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source->stop();
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}
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m_basebandSampleSources.remove(source);
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}
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m_syncMessenger.done(m_state);
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}
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void DSPDeviceSinkEngine::handleInputMessages()
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{
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Message* message;
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while ((message = m_inputMessageQueue.pop()) != 0)
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{
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qDebug("DSPDeviceSinkEngine::handleInputMessages: message: %s", message->getIdentifier());
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if (DSPSignalNotification::match(*message))
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{
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DSPSignalNotification *notif = (DSPSignalNotification *) message;
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// update DSP values
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m_sampleRate = notif->getSampleRate();
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m_centerFrequency = notif->getCenterFrequency();
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qDebug() << "DSPDeviceSinkEngine::handleInputMessages: DSPSignalNotification:"
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<< " m_sampleRate: " << m_sampleRate
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<< " m_centerFrequency: " << m_centerFrequency;
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// forward source changes to sources with immediate execution
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for(BasebandSampleSources::const_iterator it = m_basebandSampleSources.begin(); it != m_basebandSampleSources.end(); it++)
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{
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qDebug() << "DSPDeviceSinkEngine::handleInputMessages: forward message to " << (*it)->objectName().toStdString().c_str();
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(*it)->handleMessage(*message);
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}
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// forward changes to listeners on DSP output queue
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MessageQueue *guiMessageQueue = m_deviceSampleSink->getMessageQueueToGUI();
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qDebug("DSPDeviceSinkEngine::handleInputMessages: DSPSignalNotification: guiMessageQueue: %p", guiMessageQueue);
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if (guiMessageQueue)
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{
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DSPSignalNotification* rep = new DSPSignalNotification(*notif); // make a copy for the output queue
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|
guiMessageQueue->push(rep);
|
|
}
|
|
|
|
delete message;
|
|
}
|
|
}
|
|
}
|