hyperion.ng/libsrc/udplistener/UDPListener.cpp
2018-12-27 23:11:32 +01:00

161 lines
4.4 KiB
C++

// project includes
#include <udplistener/UDPListener.h>
// hyperion includes
#include <hyperion/Hyperion.h>
#include <bonjour/bonjourserviceregister.h>
// hyperion util includes
#include "utils/ColorRgb.h"
#include "HyperionConfig.h"
// qt includes
#include <QUdpSocket>
using namespace hyperion;
UDPListener::UDPListener(const QJsonDocument& config) :
QObject(),
_hyperion(Hyperion::getInstance()),
_server(new QUdpSocket(this)),
_openConnections(),
_priority(0),
_timeout(0),
_log(Logger::getInstance("UDPLISTENER")),
_isActive(false),
_listenPort(0)
{
Debug(_log, "Instance created");
// listen for comp changes
connect(_hyperion, SIGNAL(componentStateChanged(hyperion::Components,bool)), this, SLOT(componentStateChanged(hyperion::Components,bool)));
// Set trigger for incoming connections
connect(_server, SIGNAL(readyRead()), this, SLOT(readPendingDatagrams()));
// init
handleSettingsUpdate(settings::UDPLISTENER, config);
}
UDPListener::~UDPListener()
{
// clear the current channel
stop();
delete _server;
_hyperion->clear(_priority);
}
void UDPListener::start()
{
if ( active() )
return;
QHostAddress mcastGroup;
if (_listenAddress.isInSubnet(QHostAddress::parseSubnet("224.0.0.0/4"))) {
mcastGroup = _listenAddress;
}
if (!_server->bind(_listenAddress, _listenPort, _bondage))
{
Error(_log, "Could not bind to %s:%d", _listenAddress.toString().toStdString().c_str(), _listenPort);
}
else
{
Info(_log, "Started, listening on %s:%d", _listenAddress.toString().toStdString().c_str(), _listenPort);
if (!mcastGroup.isNull()) {
bool joinGroupOK = _server->joinMulticastGroup(_listenAddress);
InfoIf ( joinGroupOK, _log, "Multicast enabled");
WarningIf( ! joinGroupOK, _log, "Multicast failed");
}
_isActive = true;
_hyperion->getComponentRegister().componentStateChanged(COMP_UDPLISTENER, _isActive);
if(_bonjourService == nullptr)
{
_bonjourService = new BonjourServiceRegister();
_bonjourService->registerService("_hyperiond-udp._udp", _listenPort);
}
}
}
void UDPListener::stop()
{
if ( ! active() )
return;
_server->close();
_isActive = false;
Info(_log, "Stopped");
_hyperion->clear(_priority);
_hyperion->getComponentRegister().componentStateChanged(COMP_UDPLISTENER, _isActive);
}
void UDPListener::componentStateChanged(const hyperion::Components component, bool enable)
{
if (component == COMP_UDPLISTENER)
{
if (_isActive != enable)
{
if (enable) start();
else stop();
}
}
}
uint16_t UDPListener::getPort() const
{
return _server->localPort();
}
void UDPListener::readPendingDatagrams()
{
while (_server->hasPendingDatagrams()) {
QByteArray datagram;
datagram.resize(_server->pendingDatagramSize());
QHostAddress sender;
quint16 senderPort;
_server->readDatagram(datagram.data(), datagram.size(), &sender, &senderPort);
processTheDatagram(&datagram, &sender);
}
}
void UDPListener::processTheDatagram(const QByteArray * datagram, const QHostAddress * sender)
{
int packetLedCount = datagram->size()/3;
int hyperionLedCount = Hyperion::getInstance()->getLedCount();
DebugIf( (packetLedCount != hyperionLedCount), _log, "packetLedCount (%d) != hyperionLedCount (%d)", packetLedCount, hyperionLedCount);
std::vector<ColorRgb> _ledColors(Hyperion::getInstance()->getLedCount(), ColorRgb::BLACK);
for (int ledIndex=0; ledIndex < qMin(packetLedCount, hyperionLedCount); ledIndex++) {
ColorRgb & rgb = _ledColors[ledIndex];
rgb.red = datagram->at(ledIndex*3+0);
rgb.green = datagram->at(ledIndex*3+1);
rgb.blue = datagram->at(ledIndex*3+2);
}
// TODO provide a setInput with origin arg to overwrite senders smarter
_hyperion->registerInput(_priority, hyperion::COMP_UDPLISTENER, QString("UDPListener@%1").arg(sender->toString()));
_hyperion->setInput(_priority, _ledColors, _timeout);
}
void UDPListener::handleSettingsUpdate(const settings::type& type, const QJsonDocument& config)
{
if(type == settings::UDPLISTENER)
{
QJsonObject obj = config.object();
// if we change the prio we need to make sure the old one is cleared before we apply the new one!
stop();
QString addr = obj["address"].toString("");
_priority = obj["priority"].toInt();
_listenPort = obj["port"].toInt();
_listenAddress = addr.isEmpty()? QHostAddress::AnyIPv4 : QHostAddress(addr);
_bondage = (obj["shared"].toBool(false)) ? QAbstractSocket::ShareAddress : QAbstractSocket::DefaultForPlatform;
_timeout = obj["timeout"].toInt(10000);
if(obj["enable"].toBool())
start();
}
}