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122 lines
4.0 KiB
122 lines
4.0 KiB
/* -*-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 <OpenThreads/Condition> |
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#include <osg/Timer> |
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#include <osgDB/DatabasePager> |
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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 OSGVIEWER_EXPORT OpenGLQuerySupport : public osg::Referenced |
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{ |
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public: |
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OpenGLQuerySupport(); |
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virtual void checkQuery(osg::Stats* stats, osg::State* state, |
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osg::Timer_t startTick) = 0; |
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virtual void beginQuery(unsigned int frameNumber, osg::State* state) = 0; |
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virtual void endQuery(osg::State* state) = 0; |
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virtual void initialize(osg::State* state, osg::Timer_t startTick); |
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protected: |
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const osg::Drawable::Extensions* _extensions; |
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}; |
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class OSGVIEWER_EXPORT Renderer : public osg::GraphicsOperation |
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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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const osgUtil::SceneView* getSceneView(unsigned int i) const { 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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virtual void cull(); |
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virtual void draw(); |
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virtual void cull_draw(); |
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virtual void compile(); |
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void setCompileOnNextDraw(bool flag) { _compileOnNextDraw = flag; } |
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bool getCompileOnNextDraw() const { return _compileOnNextDraw; } |
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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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/** Force update of state associated with cameras. */ |
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void setCameraRequiresSetUp(bool flag); |
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bool getCameraRequiresSetUp() const; |
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protected: |
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void initialize(osg::State* state); |
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virtual ~Renderer(); |
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virtual void updateSceneView(osgUtil::SceneView* sceneView); |
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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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bool _compileOnNextDraw; |
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osg::ref_ptr<osgUtil::SceneView> _sceneView[2]; |
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struct OSGVIEWER_EXPORT ThreadSafeQueue |
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{ |
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OpenThreads::Mutex _mutex; |
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OpenThreads::Condition _cond; |
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typedef std::list<osgUtil::SceneView*> SceneViewList; |
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SceneViewList _queue; |
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bool _isReleased; |
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ThreadSafeQueue(); |
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~ThreadSafeQueue(); |
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/** Release any thread waiting on the queue, even if the queue is empty. */ |
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void release(); |
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/** Take a SceneView from the queue. Can return 0 if release() is called when the queue is empty. */ |
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osgUtil::SceneView* takeFront(); |
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/** Add a SceneView object to the back of the queue. */ |
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void add(osgUtil::SceneView* sv); |
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}; |
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ThreadSafeQueue _availableQueue; |
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ThreadSafeQueue _drawQueue; |
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bool _initialized; |
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osg::ref_ptr<OpenGLQuerySupport> _querySupport; |
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osg::Timer_t _startTick; |
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}; |
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} |
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#endif
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