mirror of
https://github.com/f4exb/sdrangel.git
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291 lines
9.2 KiB
C++
291 lines
9.2 KiB
C++
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///////////////////////////////////////////////////////////////////////////////////
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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 "testmosyncsettings.h"
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#include "testmosyncthread.h"
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TestMOSyncThread::TestMOSyncThread(QObject* parent) :
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QThread(parent),
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m_running(false),
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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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{
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qDebug("TestMOSyncThread::TestMOSyncThread");
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m_buf = new qint16[2*TestMOSyncSettings::m_blockSize*2];
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}
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TestMOSyncThread::~TestMOSyncThread()
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{
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qDebug("TestMOSyncThread::~TestMOSyncThread");
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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 TestMOSyncThread::startWork()
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{
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m_startWaitMutex.lock();
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m_elapsedTimer.start();
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start();
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while(!m_running) {
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m_startWaiter.wait(&m_startWaitMutex, 100);
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}
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m_startWaitMutex.unlock();
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}
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void TestMOSyncThread::stopWork()
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{
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m_running = false;
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wait();
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}
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void TestMOSyncThread::run()
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{
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m_running = true;
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m_startWaiter.wakeAll();
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while(m_running) // actual work is in the tick() function
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{
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sleep(1);
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}
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m_running = false;
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}
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void TestMOSyncThread::connectTimer(const QTimer& timer)
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{
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qDebug() << "TestMOSyncThread::connectTimer";
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connect(&timer, SIGNAL(timeout()), this, SLOT(tick()));
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}
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void TestMOSyncThread::setSamplerate(int samplerate)
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{
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if (samplerate != m_samplerate)
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{
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qDebug() << "TestMOSyncThread::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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if (wasRunning) {
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startWork();
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}
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}
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}
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void TestMOSyncThread::setLog2Interpolation(unsigned int log2Interpolation)
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{
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if ((log2Interpolation < 0) || (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 TestMOSyncThread::getLog2Interpolation() const
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{
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return m_log2Interp;
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}
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void TestMOSyncThread::setFcPos(int fcPos)
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{
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m_fcPos = fcPos;
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}
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int TestMOSyncThread::getFcPos() const
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{
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return m_fcPos;
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}
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void TestMOSyncThread::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, samplesPerChannel, iPart1Begin, iPart1End - iPart1Begin);
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}
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if (iPart2Begin != iPart2End)
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{
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unsigned int part1Size = iPart1End - iPart1End;
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callbackPart(buf + 2*part1Size, samplesPerChannel, iPart2Begin, iPart2End - 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 TestMOSyncThread::callbackPart(qint16* buf, qint32 samplesPerChannel, int iBegin, qint32 nSamples)
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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*samplesPerChannel], nSamples*2);
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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*samplesPerChannel], nSamples*2);
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break;
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case 2:
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m_interpolators[channel].interpolate4_inf(&begin, &buf[channel*2*samplesPerChannel], nSamples*2);
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break;
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case 3:
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m_interpolators[channel].interpolate8_inf(&begin, &buf[channel*2*samplesPerChannel], nSamples*2);
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break;
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case 4:
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m_interpolators[channel].interpolate16_inf(&begin, &buf[channel*2*samplesPerChannel], nSamples*2);
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break;
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case 5:
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m_interpolators[channel].interpolate32_inf(&begin, &buf[channel*2*samplesPerChannel], nSamples*2);
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break;
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case 6:
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m_interpolators[channel].interpolate64_inf(&begin, &buf[channel*2*samplesPerChannel], nSamples*2);
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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*samplesPerChannel], nSamples*2);
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break;
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case 2:
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m_interpolators[channel].interpolate4_sup(&begin, &buf[channel*2*samplesPerChannel], nSamples*2);
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break;
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case 3:
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m_interpolators[channel].interpolate8_sup(&begin, &buf[channel*2*samplesPerChannel], nSamples*2);
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break;
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case 4:
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m_interpolators[channel].interpolate16_sup(&begin, &buf[channel*2*samplesPerChannel], nSamples*2);
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break;
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case 5:
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m_interpolators[channel].interpolate32_sup(&begin, &buf[channel*2*samplesPerChannel], nSamples*2);
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break;
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case 6:
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m_interpolators[channel].interpolate64_sup(&begin, &buf[channel*2*samplesPerChannel], nSamples*2);
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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*samplesPerChannel], nSamples*2);
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break;
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case 2:
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m_interpolators[channel].interpolate4_cen(&begin, &buf[channel*2*samplesPerChannel], nSamples*2);
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break;
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case 3:
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m_interpolators[channel].interpolate8_cen(&begin, &buf[channel*2*samplesPerChannel], nSamples*2);
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break;
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case 4:
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m_interpolators[channel].interpolate16_cen(&begin, &buf[channel*2*samplesPerChannel], nSamples*2);
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break;
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case 5:
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m_interpolators[channel].interpolate32_cen(&begin, &buf[channel*2*samplesPerChannel], nSamples*2);
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break;
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case 6:
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m_interpolators[channel].interpolate64_cen(&begin, &buf[channel*2*samplesPerChannel], nSamples*2);
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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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}
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}
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void TestMOSyncThread::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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int chunkSize = std::min((int) m_samplesChunkSize, m_samplerate) + m_samplesRemainder;
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while (chunkSize >= TestMOSyncSettings::m_blockSize)
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{
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callback(m_buf, TestMOSyncSettings::m_blockSize);
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chunkSize -= TestMOSyncSettings::m_blockSize;
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}
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m_samplesRemainder = chunkSize;
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}
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}
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