Multi device support: add a unique ID to DSPDeviceEngine

sdrbase/dsp/dspdeviceengine.cpp

@@ -25,7 +25,8 @@
 #include "dsp/dspcommands.h"
 #include "dsp/samplesource.h"
 
-DSPDeviceEngine::DSPDeviceEngine(QObject* parent) :
+DSPDeviceEngine::DSPDeviceEngine(uint uid, QObject* parent) :
+    m_uid(uid),
 	QThread(parent),
 	m_state(StNotStarted),
 	m_sampleSource(0),

sdrbase/dsp/dspdeviceengine.h

@@ -45,9 +45,11 @@ public:
 		StError        //!< engine is in error
 	};
 
-	DSPDeviceEngine(QObject* parent = NULL);
+	DSPDeviceEngine(uint uid, QObject* parent = NULL);
 	~DSPDeviceEngine();
 
+	uint getUID() const { return m_uid; }
+
 	MessageQueue* getInputMessageQueue() { return &m_inputMessageQueue; }
 	MessageQueue* getOutputMessageQueue() { return &m_outputMessageQueue; }
 
@@ -75,6 +77,8 @@ public:
 	QString sourceDeviceDescription(); //!< Return the source device description
 
 private:
+	uint m_uid; //!< unique ID
+
 	MessageQueue m_inputMessageQueue;  //<! Input message queue. Post here.
 	MessageQueue m_outputMessageQueue; //<! Output message queue. Listen here.
 	SyncMessenger m_syncMessenger;     //!< Used to process messages synchronously with the thread

sdrbase/dsp/dspengine.cpp

@@ -22,7 +22,7 @@
 DSPEngine::DSPEngine() :
 	m_audioSampleRate(48000) // Use default output device at 48 kHz
 {
-    m_deviceEngines.push_back(new DSPDeviceEngine());
+    m_deviceEngines.push_back(new DSPDeviceEngine(0)); // TODO: multi device support
 	m_dvSerialSupport = false;
 }
 
@@ -157,6 +157,23 @@ QString DSPEngine::errorMessage(uint deviceIndex)
 	return m_deviceEngines[deviceIndex]->errorMessage();
 }
 
+DSPDeviceEngine *DSPEngine::getDeviceEngineByUID(uint uid)
+{
+    std::vector<DSPDeviceEngine*>::iterator it = m_deviceEngines.begin();
+
+    while (it != m_deviceEngines.end())
+    {
+        if ((*it)->getUID() == uid)
+        {
+            return *it;
+        }
+
+        ++it;
+    }
+
+    return 0;
+}
+
 QString DSPEngine::sourceDeviceDescription(uint deviceIndex)
 {
 	return m_deviceEngines[deviceIndex]->sourceDeviceDescription();

sdrbase/dsp/dspengine.h

@@ -65,7 +65,8 @@ public:
     QString errorMessage(uint deviceIndex = 0); //!< Return the current error message
     QString sourceDeviceDescription(uint deviceIndex = 0); //!< Return the source device description
 
-    DSPDeviceEngine *getDeviceEngine(uint deviceIndex) { return m_deviceEngines[deviceIndex]; }
+    DSPDeviceEngine *getDeviceEngineByIndex(uint deviceIndex) { return m_deviceEngines[deviceIndex]; }
+    DSPDeviceEngine *getDeviceEngineByUID(uint uid);
 
 	void addAudioSink(AudioFifo* audioFifo); //!< Add the audio sink
 	void removeAudioSink(AudioFifo* audioFifo); //!< Remove the audio sink

sdrbase/mainwindow.cpp

@@ -104,7 +104,7 @@ MainWindow::MainWindow(QWidget* parent) :
 
 	qDebug() << "MainWindow::MainWindow: m_pluginManager->loadPlugins ...";
 
-    m_pluginManager = new PluginManager(this, m_dspEngine->getDeviceEngine(0));
+    m_pluginManager = new PluginManager(this, m_dspEngine->getDeviceEngineByIndex(0));
 	m_pluginManager->loadPlugins();
 
 	//bool sampleSourceSignalsBlocked = ui->sampleSource->blockSignals(true);

sdrbase/mainwindow.h

@@ -133,6 +133,8 @@ private:
 	QTreeWidgetItem* addPresetToTree(const Preset* preset);
 	void applySettings();
 
+	void createDevice();
+
 private slots:
 	void handleDSPMessages();
 	void handleMessages();