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137 lines
4.4 KiB
137 lines
4.4 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 OSGUTIL_GLOBJECTSVISITOR |
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#define OSGUTIL_GLOBJECTSVISITOR 1 |
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#include <OpenThreads/Mutex> |
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#include <osg/NodeVisitor> |
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#include <osg/Geode> |
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#include <osg/State> |
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#include <osgUtil/Export> |
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namespace osgUtil { |
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/** Visitor for traversing scene graph and setting each osg::Drawable's _useDisplayList flag, |
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* with option to immediately compile osg::Drawable OpenGL Display lists and |
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* osg::StateAttribute's. |
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*/ |
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class OSGUTIL_EXPORT GLObjectsVisitor : public osg::NodeVisitor |
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{ |
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public: |
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/** Operation modes of the.*/ |
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enum ModeValues |
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{ |
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SWITCH_ON_DISPLAY_LISTS = 0x1, |
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SWITCH_OFF_DISPLAY_LISTS = 0x2, |
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COMPILE_DISPLAY_LISTS = 0x4, |
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COMPILE_STATE_ATTRIBUTES = 0x8, |
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RELEASE_DISPLAY_LISTS = 0x10, |
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RELEASE_STATE_ATTRIBUTES = 0x20, |
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SWITCH_ON_VERTEX_BUFFER_OBJECTS = 0x40, |
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SWITCH_OFF_VERTEX_BUFFER_OBJECTS = 0x80, |
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CHECK_BLACK_LISTED_MODES = 0x100 |
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}; |
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typedef unsigned int Mode; |
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/** Construct a GLObjectsVisitor to traverse all children, operating on |
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* node according to specified mode, such as to compile or release |
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* display list/texture objects etc. Default mode is to compile |
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* GL objects. |
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*/ |
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GLObjectsVisitor(Mode mode=COMPILE_DISPLAY_LISTS|COMPILE_STATE_ATTRIBUTES|CHECK_BLACK_LISTED_MODES); |
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META_NodeVisitor("osg","GLObjectsVisitor") |
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virtual void reset() |
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{ |
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_drawablesAppliedSet.clear(); |
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_stateSetAppliedSet.clear(); |
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} |
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/** Set the operational mode of what operations to do on the scene graph.*/ |
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void setMode(Mode mode) { _mode = mode; } |
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/** Get the operational mode.*/ |
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Mode getMode() const { return _mode; } |
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/** Set the State to use during traversal. */ |
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void setState(osg::State* state) |
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{ |
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_renderInfo.setState(state); |
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} |
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osg::State* getState() |
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{ |
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return _renderInfo.getState(); |
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} |
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void setRenderInfo(osg::RenderInfo& renderInfo) |
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{ |
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_renderInfo = renderInfo; |
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} |
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osg::RenderInfo& getRenderInfo() |
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{ |
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return _renderInfo; |
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} |
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/** Simply traverse using standard NodeVisitor traverse method.*/ |
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virtual void apply(osg::Node& node); |
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/** For each Geode visited set the display list usage according to the |
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* _displayListMode. |
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*/ |
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virtual void apply(osg::Geode& node); |
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void apply(osg::Drawable& drawable); |
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void apply(osg::StateSet& stateset); |
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protected: |
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typedef std::set<osg::Drawable*> DrawableAppliedSet; |
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typedef std::set<osg::StateSet*> StatesSetAppliedSet; |
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Mode _mode; |
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osg::RenderInfo _renderInfo; |
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DrawableAppliedSet _drawablesAppliedSet; |
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StatesSetAppliedSet _stateSetAppliedSet; |
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osg::ref_ptr<osg::Program> _lastCompiledProgram; |
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}; |
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class OSGUTIL_EXPORT GLObjectsOperation : public osg::GraphicsOperation |
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{ |
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public: |
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GLObjectsOperation(GLObjectsVisitor::Mode mode = GLObjectsVisitor::COMPILE_DISPLAY_LISTS|GLObjectsVisitor::COMPILE_STATE_ATTRIBUTES|GLObjectsVisitor::CHECK_BLACK_LISTED_MODES); |
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GLObjectsOperation(osg::Node* subgraph, GLObjectsVisitor::Mode mode = GLObjectsVisitor::COMPILE_DISPLAY_LISTS|GLObjectsVisitor::COMPILE_STATE_ATTRIBUTES|GLObjectsVisitor::CHECK_BLACK_LISTED_MODES); |
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virtual void operator () (osg::GraphicsContext* context); |
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protected: |
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osg::ref_ptr<osg::Node> _subgraph; |
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GLObjectsVisitor::Mode _mode; |
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}; |
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} |
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#endif |
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