143 lines
3.6 KiB
C++
143 lines
3.6 KiB
C++
/* -*-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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#include <osgTerrain/TerrainTechnique>
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#include <osgTerrain/TerrainTile>
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using namespace osgTerrain;
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/////////////////////////////////////////////////////////////////////////////////////
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//
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// TerrainNeighbours
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//
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TerrainNeighbours::TerrainNeighbours()
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{
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}
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TerrainNeighbours::~TerrainNeighbours()
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{
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clear();
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}
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void TerrainNeighbours::addNeighbour(TerrainTile* tile)
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{
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OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_neighboursMutex);
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_neighbours.insert(tile);
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}
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void TerrainNeighbours::removeNeighbour(TerrainTile* tile)
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{
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OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_neighboursMutex);
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_neighbours.erase(tile);
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}
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void TerrainNeighbours::clear()
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{
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OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_neighboursMutex);
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_neighbours.clear();
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}
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bool TerrainNeighbours::containsNeighbour(TerrainTile* tile) const
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{
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OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_neighboursMutex);
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return _neighbours.count(tile)!=0;
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}
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/////////////////////////////////////////////////////////////////////////////////////
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//
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// TerrainTechnique
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//
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TerrainTechnique::TerrainTechnique():
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_terrainTile(0)
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{
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setThreadSafeRefUnref(true);
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}
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TerrainTechnique::TerrainTechnique(const TerrainTechnique& tt,const osg::CopyOp& copyop):
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osg::Object(tt,copyop),
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_terrainTile(0)
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{
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}
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TerrainTechnique::~TerrainTechnique()
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{
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}
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void TerrainTechnique::setTerrainTile(TerrainTile* tile)
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{
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if (_terrainTile==tile) return;
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_neighbours.clear();
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_terrainTile = tile;
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}
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void TerrainTechnique::init(int /*dirtyMask*/, bool /*assumeMultiThreaded*/)
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{
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OSG_NOTICE<<className()<<"::init(..) not implemented yet"<<std::endl;
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}
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void TerrainTechnique::update(osgUtil::UpdateVisitor* uv)
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{
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OSG_NOTICE<<className()<<"::update(..) not implemented yet"<<std::endl;
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if (_terrainTile) _terrainTile->osg::Group::traverse(*uv);
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}
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void TerrainTechnique::cull(osgUtil::CullVisitor* cv)
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{
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OSG_NOTICE<<className()<<"::cull(..) not implemented yet"<<std::endl;
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if (_terrainTile) _terrainTile->osg::Group::traverse(*cv);
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}
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void TerrainTechnique::cleanSceneGraph()
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{
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OSG_NOTICE<<className()<<"::cleanSceneGraph(..) not implemented yet"<<std::endl;
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}
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void TerrainTechnique::traverse(osg::NodeVisitor& nv)
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{
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if (!_terrainTile) return;
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// if app traversal update the frame count.
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if (nv.getVisitorType()==osg::NodeVisitor::UPDATE_VISITOR)
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{
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if (_terrainTile->getDirty()) _terrainTile->init(_terrainTile->getDirtyMask(), false);
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osgUtil::UpdateVisitor* uv = nv.asUpdateVisitor();
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if (uv)
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{
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update(uv);
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return;
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}
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}
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else if (nv.getVisitorType()==osg::NodeVisitor::CULL_VISITOR)
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{
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osgUtil::CullVisitor* cv = nv.asCullVisitor();
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if (cv)
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{
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cull(cv);
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return;
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}
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}
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if (_terrainTile->getDirty())
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{
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_terrainTile->init(_terrainTile->getDirtyMask(), false);
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}
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// otherwise fallback to the Group::traverse()
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_terrainTile->osg::Group::traverse(nv);
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}
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