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https://github.com/f4exb/sdrangel.git
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360 lines
12 KiB
C++
360 lines
12 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2019 Edouard Griffiths, F4EXB //
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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 <QTimer>
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#include <QDebug>
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#include "dsp/samplemofifo.h"
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#include "dsp/basebandsamplesink.h"
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#include "testmosyncsettings.h"
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#include "testmosyncworker.h"
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TestMOSyncWorker::TestMOSyncWorker(QObject* parent) :
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QObject(parent),
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m_running(false),
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m_buf(nullptr),
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m_log2Interp(0),
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m_throttlems(TestMOSyncSettings::m_msThrottle),
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m_throttleToggle(false),
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m_samplesRemainder(0),
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m_samplerate(0),
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m_feedSpectrumIndex(0),
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m_spectrumSink(nullptr)
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{
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qDebug("TestMOSyncWorker::TestMOSyncWorker");
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setSamplerate(48000);
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}
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TestMOSyncWorker::~TestMOSyncWorker()
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{
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qDebug("TestMOSyncWorker::~TestMOSyncWorker");
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if (m_running) {
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stopWork();
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}
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delete[] m_buf;
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}
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void TestMOSyncWorker::startWork()
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{
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qDebug("TestMOSyncWorker::startWork");
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m_elapsedTimer.start();
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m_running = true;
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}
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void TestMOSyncWorker::stopWork()
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{
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qDebug("TestMOSyncWorker::stopWork");
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m_running = false;
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}
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void TestMOSyncWorker::connectTimer(const QTimer& timer)
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{
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qDebug() << "TestMOSyncWorker::connectTimer";
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connect(&timer, SIGNAL(timeout()), this, SLOT(tick()));
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}
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void TestMOSyncWorker::setSamplerate(int samplerate)
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{
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if (samplerate != m_samplerate)
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{
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qDebug() << "TestMOSyncWorker::setSamplerate:"
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<< " new:" << samplerate
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<< " old:" << m_samplerate;
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bool wasRunning = false;
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if (m_running)
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{
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stopWork();
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wasRunning = true;
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}
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m_samplerate = samplerate;
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m_samplesChunkSize = (m_samplerate * m_throttlems) / 1000;
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m_blockSize = (m_samplerate * 50) / 1000;
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if (m_buf) {
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delete[] m_buf;
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}
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m_buf = new qint16[2*m_blockSize*2];
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if (wasRunning) {
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startWork();
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}
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}
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}
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void TestMOSyncWorker::setLog2Interpolation(unsigned int log2Interpolation)
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{
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if (log2Interpolation > 6) {
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return;
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}
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if (log2Interpolation != m_log2Interp)
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{
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qDebug() << "TestSinkThread::setLog2Interpolation:"
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<< " new:" << log2Interpolation
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<< " old:" << m_log2Interp;
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bool wasRunning = false;
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if (m_running)
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{
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stopWork();
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wasRunning = true;
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}
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m_log2Interp = log2Interpolation;
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if (wasRunning) {
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startWork();
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}
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}
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}
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unsigned int TestMOSyncWorker::getLog2Interpolation() const
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{
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return m_log2Interp;
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}
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void TestMOSyncWorker::setFcPos(int fcPos)
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{
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m_fcPos = fcPos;
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}
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int TestMOSyncWorker::getFcPos() const
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{
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return m_fcPos;
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}
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void TestMOSyncWorker::callback(qint16* buf, qint32 samplesPerChannel)
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{
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unsigned int iPart1Begin, iPart1End, iPart2Begin, iPart2End;
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m_sampleFifo->readSync(samplesPerChannel/(1<<m_log2Interp), iPart1Begin, iPart1End, iPart2Begin, iPart2End);
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if (iPart1Begin != iPart1End)
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{
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callbackPart(buf, (iPart1End - iPart1Begin)*(1<<m_log2Interp), iPart1Begin);
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}
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if (iPart2Begin != iPart2End)
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{
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unsigned int shift = (iPart1End - iPart1Begin)*(1<<m_log2Interp);
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callbackPart(buf + 2*shift, (iPart2End - iPart2Begin)*(1<<m_log2Interp), iPart2Begin);
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}
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}
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// Interpolate according to specified log2 (ex: log2=4 => decim=16). len is a number of samples (not a number of I or Q)
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void TestMOSyncWorker::callbackPart(qint16* buf, qint32 nSamples, int iBegin)
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{
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for (unsigned int channel = 0; channel < 2; channel++)
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{
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SampleVector::iterator begin = m_sampleFifo->getData(channel).begin() + iBegin;
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if (m_log2Interp == 0)
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{
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m_interpolators[channel].interpolate1(&begin, &buf[channel*2*nSamples], 2*nSamples);
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}
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else
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{
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if (m_fcPos == 0) // Infra
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{
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switch (m_log2Interp)
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{
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case 1:
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m_interpolators[channel].interpolate2_inf(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 2:
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m_interpolators[channel].interpolate4_inf(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 3:
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m_interpolators[channel].interpolate8_inf(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 4:
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m_interpolators[channel].interpolate16_inf(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 5:
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m_interpolators[channel].interpolate32_inf(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 6:
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m_interpolators[channel].interpolate64_inf(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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default:
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break;
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}
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}
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else if (m_fcPos == 1) // Supra
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{
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switch (m_log2Interp)
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{
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case 1:
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m_interpolators[channel].interpolate2_sup(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 2:
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m_interpolators[channel].interpolate4_sup(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 3:
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m_interpolators[channel].interpolate8_sup(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 4:
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m_interpolators[channel].interpolate16_sup(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 5:
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m_interpolators[channel].interpolate32_sup(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 6:
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m_interpolators[channel].interpolate64_sup(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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default:
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break;
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}
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}
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else if (m_fcPos == 2) // Center
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{
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switch (m_log2Interp)
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{
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case 1:
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m_interpolators[channel].interpolate2_cen(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 2:
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m_interpolators[channel].interpolate4_cen(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 3:
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m_interpolators[channel].interpolate8_cen(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 4:
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m_interpolators[channel].interpolate16_cen(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 5:
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m_interpolators[channel].interpolate32_cen(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 6:
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m_interpolators[channel].interpolate64_cen(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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default:
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break;
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}
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}
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}
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if (channel == m_feedSpectrumIndex) {
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feedSpectrum(&buf[channel*2*nSamples], nSamples*2);
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}
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}
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}
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void TestMOSyncWorker::tick()
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{
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if (m_running)
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{
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qint64 throttlems = m_elapsedTimer.restart();
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if (throttlems != m_throttlems)
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{
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m_throttlems = throttlems;
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m_samplesChunkSize = (m_samplerate * (m_throttlems+(m_throttleToggle ? 1 : 0))) / 1000;
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m_throttleToggle = !m_throttleToggle;
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}
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unsigned int iPart1Begin, iPart1End, iPart2Begin, iPart2End;
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std::vector<SampleVector>& data = m_sampleFifo->getData();
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m_sampleFifo->readSync(m_samplesChunkSize, iPart1Begin, iPart1End, iPart2Begin, iPart2End);
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if (iPart1Begin != iPart1End) {
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callbackPart(data, iPart1Begin, iPart1End);
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}
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if (iPart2Begin != iPart2End) {
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callbackPart(data, iPart2Begin, iPart2End);
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}
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}
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}
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void TestMOSyncWorker::callbackPart(std::vector<SampleVector>& data, unsigned int iBegin, unsigned int iEnd)
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{
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unsigned int chunkSize = iEnd - iBegin;
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for (unsigned int channel = 0; channel < 2; channel++)
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{
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SampleVector::iterator beginRead = data[channel].begin() + iBegin;
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if (m_log2Interp == 0)
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{
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m_interpolators[channel].interpolate1(&beginRead, m_buf, 2*chunkSize);
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if (channel == m_feedSpectrumIndex) {
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feedSpectrum(m_buf, 2*chunkSize);
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}
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}
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else
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{
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switch (m_log2Interp)
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{
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case 1:
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m_interpolators[channel].interpolate2_cen(&beginRead, m_buf, chunkSize*(1<<m_log2Interp)*2);
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break;
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case 2:
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m_interpolators[channel].interpolate4_cen(&beginRead, m_buf, chunkSize*(1<<m_log2Interp)*2);
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break;
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case 3:
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m_interpolators[channel].interpolate8_cen(&beginRead, m_buf, chunkSize*(1<<m_log2Interp)*2);
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break;
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case 4:
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m_interpolators[channel].interpolate16_cen(&beginRead, m_buf, chunkSize*(1<<m_log2Interp)*2);
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break;
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case 5:
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m_interpolators[channel].interpolate32_cen(&beginRead, m_buf, chunkSize*(1<<m_log2Interp)*2);
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break;
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case 6:
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m_interpolators[channel].interpolate64_cen(&beginRead, m_buf, chunkSize*(1<<m_log2Interp)*2);
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break;
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default:
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break;
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}
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if (channel == m_feedSpectrumIndex) {
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feedSpectrum(m_buf, 2*chunkSize*(1<<m_log2Interp));
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}
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}
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}
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}
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void TestMOSyncWorker::feedSpectrum(int16_t *buf, unsigned int bufSize)
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{
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if (!m_spectrumSink) {
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return;
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}
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m_samplesVector.allocate(bufSize/2);
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Sample16 *s16Buf = (Sample16*) buf;
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std::transform(
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s16Buf,
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s16Buf + (bufSize/2),
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m_samplesVector.m_vector.begin(),
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[](Sample16 s) -> Sample {
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return Sample{s.m_real, s.m_imag};
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}
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);
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m_spectrumSink->feed(m_samplesVector.m_vector.begin(), m_samplesVector.m_vector.begin() + (bufSize/2), false);
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}
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