104 lines
3.4 KiB
Plaintext
104 lines
3.4 KiB
Plaintext
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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#ifndef OSGVIEWER_RENDERER
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#define OSGVIEWER_RENDERER 1
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#include <osg/Timer>
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#include <osgUtil/SceneView>
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#include <osgViewer/Export>
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namespace osgViewer {
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class OpenGLQuerySupport
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{
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public:
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OpenGLQuerySupport();
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typedef std::pair<GLuint, int> QueryFrameNumberPair;
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typedef std::list<QueryFrameNumberPair> QueryFrameNumberList;
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typedef std::vector<GLuint> QueryList;
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void setStartTick(osg::Timer_t startTick) { _startTick = startTick; }
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osg::Timer_t getStartTick() const { return _startTick; }
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void checkQuery(osg::Stats* stats);
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GLuint createQueryObject();
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void beginQuery(int frameNumber);
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inline void endQuery();
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void initialize(osg::State* state);
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protected:
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osg::Timer_t _startTick;
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bool _initialized;
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bool _timerQuerySupported;
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const osg::Drawable::Extensions* _extensions;
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QueryFrameNumberList _queryFrameNumberList;
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QueryList _availableQueryObjects;
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double _previousQueryTime;
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};
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class OSGVIEWER_EXPORT Renderer : public osg::GraphicsOperation, public OpenGLQuerySupport
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{
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public:
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Renderer(osg::Camera* camera);
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osgUtil::SceneView* getSceneView(unsigned int i) { return _sceneView[i].get(); }
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void setDone(bool done) { _done = done; }
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bool getDone() { return _done; }
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void setGraphicsThreadDoesCull(bool flag);
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bool getGraphicsThreadDoesCull() const { return _graphicsThreadDoesCull; }
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void cull();
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void draw();
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void cull_draw();
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virtual void operator () (osg::Object* object);
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virtual void operator () (osg::GraphicsContext* context);
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virtual void release();
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protected:
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void updateSceneView(osgUtil::SceneView* sceneView);
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virtual ~Renderer();
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osg::observer_ptr<osg::Camera> _camera;
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bool _done;
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bool _graphicsThreadDoesCull;
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unsigned int _currentCull;
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unsigned int _currentDraw;
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OpenThreads::Mutex _mutex[2];
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bool _lockHeld[2];
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osg::ref_ptr<osgUtil::SceneView> _sceneView[2];
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int _frameNumber[2];
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osg::ref_ptr<osg::FlushDeletedGLObjectsOperation> _flushOperation;
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};
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}
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#endif
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