class HeadTrackingCamera;
class StereoCombiner;
+class StereoView;
class DisplayDevice
{
public:
virtual ~DisplayDevice() { }
+ virtual void configure_view(StereoView &) const = 0;
virtual HeadTrackingCamera *create_camera(const GL::Camera &) const = 0;
virtual StereoCombiner *create_combiner() const = 0;
};