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sdrangel/plugins/channelrx/localsink/localsinkworker.cpp

103 lines
3.4 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2019 Edouard Griffiths, F4EXB. //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation as version 3 of the License, or //
// (at your option) any later version. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#include "dsp/samplesinkfifo.h"
#include "localsinkworker.h"
MESSAGE_CLASS_DEFINITION(LocalSinkWorker::MsgStartStop, Message)
LocalSinkWorker::LocalSinkWorker(QObject* parent) :
QObject(parent),
m_running(false),
m_sampleFifo(0)
{
connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()), Qt::QueuedConnection);
}
LocalSinkWorker::~LocalSinkWorker()
{
qDebug("LocalSinkWorker::~LocalSinkWorker");
}
void LocalSinkWorker::startStop(bool start)
{
MsgStartStop *msg = MsgStartStop::create(start);
m_inputMessageQueue.push(msg);
}
void LocalSinkWorker::startWork()
{
qDebug("LocalSinkWorker::startWork");
m_running = true;
}
void LocalSinkWorker::stopWork()
{
m_running = false;
}
void LocalSinkWorker::handleData()
{
while ((m_sampleFifo->fill() > 0) && (m_inputMessageQueue.size() == 0))
{
SampleVector::iterator part1begin;
SampleVector::iterator part1end;
SampleVector::iterator part2begin;
SampleVector::iterator part2end;
std::size_t count = m_sampleFifo->readBegin(m_sampleFifo->fill(), &part1begin, &part1end, &part2begin, &part2end);
if (m_deviceSampleFifo && m_running)
{
// first part of FIFO data
if (part1begin != part1end) {
m_deviceSampleFifo->write(part1begin,part1end);
}
// second part of FIFO data (used when block wraps around)
if(part2begin != part2end) {
m_deviceSampleFifo->write(part2begin, part2end);
}
}
m_sampleFifo->readCommit((unsigned int) count);
}
}
void LocalSinkWorker::handleInputMessages()
{
Message* message;
while ((message = m_inputMessageQueue.pop()) != 0)
{
if (MsgStartStop::match(*message))
{
MsgStartStop* notif = (MsgStartStop*) message;
qDebug("LocalSinkWorker::handleInputMessages: MsgStartStop: %s", notif->getStartStop() ? "start" : "stop");
if (notif->getStartStop()) {
startWork();
} else {
stopWork();
}
delete message;
}
}
}