FGFS-4.1/OpenSceneGraph
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Merged the threading set up and rendering code from Viewer and CompositeViewer

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into ViewerBase to allow CompositeViewer to inherit the same theading models
previously just supported by osgViewer::Viewer
This commit is contained in:
Robert Osfield
2007-10-02 21:23:58 +00:00
parent 43a243c161
commit caeed02f52
6 changed files with 820 additions and 1180 deletions
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54
include/osgViewer/CompositeViewer
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@@ -61,33 +61,15 @@ class OSGVIEWER_EXPORT CompositeViewer : public ViewerBase, public virtual osg::
osg::FrameStamp* getFrameStamp() { return _frameStamp.get(); }
const osg::FrameStamp* getFrameStamp() const { return _frameStamp.get(); }
/** Set the threading model the rendering traversals will use.*/
virtual void setThreadingModel(ThreadingModel threadingModel);
virtual double elapsedTime();
virtual osg::FrameStamp* getViewerFrameStamp() { return getFrameStamp(); }
void setEventQueue(osgGA::EventQueue* eventQueue) { _eventQueue = eventQueue; }
osgGA::EventQueue* getEventQueue() { return _eventQueue.get(); }
const osgGA::EventQueue* getEventQueue() const { return _eventQueue.get(); }
enum BarrierPosition
{
BeforeSwapBuffers,
AfterSwapBuffers
};
/** Set the position of the end barrier.
* AfterSwapBuffers will may result is slightly higher framerates, by may
* lead to inconcistent swapping between different windows.
* BeforeSwapBuffers may lead to slightly lower framerate, but improve consistency in timing of swap buffers,
* especially important if you are likely to consistently break frame.*/
void setEndBarrierPosition(BarrierPosition bp);
/** Get the end barrier position.*/
BarrierPosition getEndBarrierPosition() const { return _endBarrierPosition; }
/** Execute a main frame loop.
* Equivialant to while (!viewer.done()) viewer.frame();
* Also calls realize() if the viewer is not already realized,
@@ -95,18 +77,12 @@ class OSGVIEWER_EXPORT CompositeViewer : public ViewerBase, public virtual osg::
*/
virtual int run();
/** Render a complete new frame.
* Calls advance(), eventTraversal(), updateTraversal(), renderingTraversals(). */
virtual void frame(double simulationTime=USE_REFERENCE_TIME);
virtual void advance(double simulationTime=USE_REFERENCE_TIME);
virtual void eventTraversal();
virtual void updateTraversal();
virtual void renderingTraversals();
void setCameraWithFocus(osg::Camera* camera);
osg::Camera* getCameraWithFocus() { return _cameraWithFocus.get(); }
@@ -130,15 +106,6 @@ class OSGVIEWER_EXPORT CompositeViewer : public ViewerBase, public virtual osg::
virtual void getViews(Views& views, bool onlyValid=true);
/** Set up the threading and processor affinity as per the viewers threading model.*/
virtual void setUpThreading();
/** Stop any threads begin run by viewer.*/
virtual void stopThreading();
/** Start any threads required by the viewer, as per viewers ThreadingModel.*/
virtual void startThreading();
/** Get the keyboard and mouse usage of this viewer.*/
virtual void getUsage(osg::ApplicationUsage& usage) const;
@@ -146,24 +113,13 @@ class OSGVIEWER_EXPORT CompositeViewer : public ViewerBase, public virtual osg::
void constructorInit();
void init();
void checkWindowStatus();
virtual void viewerInit();
typedef std::vector< osg::ref_ptr<osgViewer::View> > RefViews;
RefViews _views;
bool _firstFrame;
BarrierPosition _endBarrierPosition;
osg::ref_ptr<osg::BarrierOperation> _startRenderingBarrier;
osg::ref_ptr<osg::BarrierOperation> _endRenderingDispatchBarrier;
unsigned int computeNumberOfThreadsIncludingMainRequired();
unsigned int _numThreadsOnBarrier;
osg::Timer_t _startTick;
osg::ref_ptr<osg::FrameStamp> _frameStamp;