Create Device Source and integration of Stream

DeviceSource.h

@@ -0,0 +1,48 @@
+#ifndef DEVICESOURCE_H
+#define DEVICESOURCE_H
+
+#include "Stream.h"
+#include "Source.h"
+
+class Device : public Stream
+{
+public:
+
+    Device();
+    void open( uint deviceid );
+
+    glm::ivec2 resolution();
+
+private:
+    void open( std::string description ) override;
+    uint device_;
+};
+
+class DeviceSource : public Source
+{
+public:
+    DeviceSource();
+    ~DeviceSource();
+
+    // implementation of source API
+    void update (float dt) override;
+    void setActive (bool on) override;
+    void render() override;
+    bool failed() const override;
+    uint texture() const override;
+    void accept (Visitor& v) override;
+
+    // Pattern specific interface
+    inline Device *device() const { return stream_; }
+    void setDevice(int id);
+
+protected:
+
+    void init() override;
+    void replaceRenderingShader() override;
+
+    Surface *devicesurface_;
+    Device  *stream_;
+};
+
+#endif // DEVICESOURCE_H