156 lines
4.6 KiB
C++
156 lines
4.6 KiB
C++
#include <osg/PagedLOD>
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#include <osgDB/ObjectWrapper>
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#include <osgDB/InputStream>
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#include <osgDB/OutputStream>
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#include <osgDB/Options>
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// _databasePath
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static bool checkDatabasePath( const osg::PagedLOD& node )
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{
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return true;
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}
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static bool readDatabasePath( osgDB::InputStream& is, osg::PagedLOD& node )
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{
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bool hasPath; is >> hasPath;
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if ( !hasPath )
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{
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if ( is.getOptions() && !is.getOptions()->getDatabasePathList().empty() )
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{
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const std::string& optionPath = is.getOptions()->getDatabasePathList().front();
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if ( !optionPath.empty() ) node.setDatabasePath( optionPath );
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}
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}
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else
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{
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std::string path; is.readWrappedString( path );
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node.setDatabasePath( path );
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}
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return true;
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}
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static bool writeDatabasePath( osgDB::OutputStream& os, const osg::PagedLOD& node )
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{
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os << (!node.getDatabasePath().empty());
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if ( !node.getDatabasePath().empty() )
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os.writeWrappedString( node.getDatabasePath() );
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os << std::endl;
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return true;
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}
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// _perRangeDataList
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static bool checkRangeDataList( const osg::PagedLOD& node )
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{
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return node.getNumFileNames()>0;
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}
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static bool readRangeDataList( osgDB::InputStream& is, osg::PagedLOD& node )
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{
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unsigned int size = 0; is >> size >> osgDB::BEGIN_BRACKET;
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for ( unsigned int i=0; i<size; ++i )
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{
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std::string name; is.readWrappedString( name );
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node.setFileName( i, name );
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}
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is >> osgDB::END_BRACKET;
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size = 0; is >> osgDB::PROPERTY("PriorityList") >> size >> osgDB::BEGIN_BRACKET;
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for ( unsigned int i=0; i<size; ++i )
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{
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float offset, scale;
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is >> offset >> scale;
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node.setPriorityOffset( i, offset );
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node.setPriorityScale( i, scale );
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}
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is >> osgDB::END_BRACKET;
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return true;
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}
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static bool writeRangeDataList( osgDB::OutputStream& os, const osg::PagedLOD& node )
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{
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unsigned int size = node.getNumFileNames();
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os << size << osgDB::BEGIN_BRACKET << std::endl;
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for ( unsigned int i=0; i<size; ++i )
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{
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os.writeWrappedString( node.getFileName(i) );
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os << std::endl;
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}
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os << osgDB::END_BRACKET << std::endl;
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size = node.getNumPriorityOffsets();
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os << osgDB::PROPERTY("PriorityList") << size << osgDB::BEGIN_BRACKET << std::endl;
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for ( unsigned int i=0; i<size; ++i )
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{
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os << node.getPriorityOffset(i) << node.getPriorityScale(i) << std::endl;
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}
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os << osgDB::END_BRACKET << std::endl;
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return true;
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}
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// _children
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static bool checkChildren( const osg::PagedLOD& node )
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{
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return node.getNumChildren()>0;
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}
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static bool readChildren( osgDB::InputStream& is, osg::PagedLOD& node )
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{
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unsigned int size = 0; is >> size >> osgDB::BEGIN_BRACKET;
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for ( unsigned int i=0; i<size; ++i )
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{
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osg::Node* child = dynamic_cast<osg::Node*>( is.readObject() );
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if ( child ) node.addChild( child );
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}
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is >> osgDB::END_BRACKET;
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return true;
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}
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static bool writeChildren( osgDB::OutputStream& os, const osg::PagedLOD& node )
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{
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unsigned int size=node.getNumFileNames(), dynamicLoadedSize=0;
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for ( unsigned int i=0; i<size; ++i )
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{
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if ( !node.getFileName(i).empty() )
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dynamicLoadedSize++;
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}
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unsigned int realSize = size-dynamicLoadedSize; os << realSize;
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if ( realSize>0 )
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{
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os << osgDB::BEGIN_BRACKET << std::endl;
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for ( unsigned int i=0; i<size; ++i )
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{
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if ( !node.getFileName(i).empty() ) continue;
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if ( i<node.getNumChildren() )
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os << node.getChild(i);
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}
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os << osgDB::END_BRACKET;
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}
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os << std::endl;
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return true;
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}
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REGISTER_OBJECT_WRAPPER( PagedLOD,
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new osg::PagedLOD,
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osg::PagedLOD,
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"osg::Object osg::Node osg::LOD osg::PagedLOD" )
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{
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// Note: osg::Group is not in the list to prevent recording dynamic loaded children
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ADD_USER_SERIALIZER( DatabasePath ); // _databasePath
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ADD_UINT_SERIALIZER( FrameNumberOfLastTraversal, 0 ); // _frameNumberOfLastTraversal, note, not required, removed from soversion 70 onwwards, see below
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ADD_UINT_SERIALIZER( NumChildrenThatCannotBeExpired, 0 ); // _numChildrenThatCannotBeExpired
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ADD_BOOL_SERIALIZER( DisableExternalChildrenPaging, false ); // _disableExternalChildrenPaging
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ADD_USER_SERIALIZER( RangeDataList ); // _perRangeDataList
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ADD_USER_SERIALIZER( Children ); // _children (which are not loaded from external)
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UPDATE_TO_VERSION( 70 )
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{
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REMOVE_SERIALIZER( FrameNumberOfLastTraversal );
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}
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}
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