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105 lines
3.2 KiB
105 lines
3.2 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 OSGTERRAIN_TERRAINTECHNIQUE |
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#define OSGTERRAIN_TERRAINTECHNIQUE 1 |
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#include <osg/Object> |
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#include <osgUtil/UpdateVisitor> |
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#include <osgUtil/CullVisitor> |
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#include <osgTerrain/Export> |
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namespace osgTerrain { |
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class TerrainTile; |
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class OSGTERRAIN_EXPORT TerrainNeighbours |
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{ |
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public: |
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TerrainNeighbours(); |
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~TerrainNeighbours(); |
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void clear(); |
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void addNeighbour(TerrainTile* tile); |
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void removeNeighbour(TerrainTile* tile); |
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bool containsNeighbour(TerrainTile* tile) const; |
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protected: |
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TerrainNeighbours(const TerrainNeighbours& /*tn*/) {} |
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TerrainNeighbours& operator = (const TerrainNeighbours& /*rhs*/) { return *this; } |
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typedef std::set<TerrainTile*> Neighbours; |
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mutable OpenThreads::Mutex _neighboursMutex; |
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Neighbours _neighbours; |
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}; |
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class OSGTERRAIN_EXPORT TerrainTechnique : public osg::Object, public osg::Observer |
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{ |
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public: |
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TerrainTechnique(); |
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/** Copy constructor using CopyOp to manage deep vs shallow copy.*/ |
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TerrainTechnique(const TerrainTechnique&,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY); |
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META_Object(osgTerrain, TerrainTechnique); |
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TerrainTile* getTerrainTile() { return _terrainTile; } |
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const TerrainTile* getTerrainTile() const { return _terrainTile; } |
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virtual void init(int dirtyMask, bool assumeMultiThreaded); |
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virtual void update(osgUtil::UpdateVisitor* nv); |
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virtual void cull(osgUtil::CullVisitor* nv); |
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/** Clean scene graph from any terrain technique specific nodes.*/ |
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virtual void cleanSceneGraph(); |
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/** Traverse the terrain subgraph.*/ |
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virtual void traverse(osg::NodeVisitor& nv); |
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/** If State is non-zero, this function releases any associated OpenGL objects for |
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* the specified graphics context. Otherwise, releases OpenGL objects |
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* for all graphics contexts. */ |
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virtual void releaseGLObjects(osg::State* = 0) const {} |
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void addNeighbour(TerrainTile* tile) { _neighbours.addNeighbour(tile); } |
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void removeNeighbour(TerrainTile* tile) { _neighbours.removeNeighbour(tile); } |
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bool containsNeighbour(TerrainTile* tile) { return _neighbours.containsNeighbour(tile); } |
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protected: |
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virtual ~TerrainTechnique(); |
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void setTerrainTile(TerrainTile* tile); |
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void setDirty(bool dirty); |
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friend class osgTerrain::TerrainTile; |
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TerrainTile* _terrainTile; |
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TerrainNeighbours _neighbours; |
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}; |
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} |
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#endif
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