118 lines
3.5 KiB
C++
118 lines
3.5 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This application is open source and may be redistributed and/or modified
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* freely and without restriction, both in commericial and non commericial applications,
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* as long as this copyright notice is maintained.
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*
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* This application 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.
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*/
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#include <osg/Timer>
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#include <osg/ArgumentParser>
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#include <osg/ApplicationUsage>
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#include <osgDB/Archive>
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#include <osgDB/ReadFile>
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#include <osgDB/WriteFile>
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#include <osgDB/FileUtils>
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#include <iostream>
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#include <algorithm>
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class LoadDataVisitor : public osg::NodeVisitor
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{
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public:
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LoadDataVisitor(unsigned int maxNumLevels=0):
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osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN),
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_maxLevels(maxNumLevels),
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_currentLevel(0) {}
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void apply(osg::PagedLOD& plod)
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{
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if (_currentLevel>_maxLevels) return;
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++_currentLevel;
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std::cout<<"Found PagedLOD "<<plod.getNumFileNames()<<std::endl;
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for(unsigned int i=0; i<plod.getNumFileNames(); ++i)
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{
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std::cout<<" filename["<<i<<"] "<<plod.getFileName(i)<<std::endl;
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if (!plod.getFileName(i).empty())
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{
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std::string filename;
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if (!plod.getDatabasePath().empty())
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{
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filename = plod.getDatabasePath() + plod.getFileName(i);
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}
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else
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{
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filename = plod.getFileName(i);
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}
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std::cout<<" reading "<<filename<<std::endl;
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osg::ref_ptr<osg::Node> node = osgDB::readNodeFile(filename);
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if (node.valid()) node->accept(*this);
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}
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}
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--_currentLevel;
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}
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protected:
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unsigned int _maxLevels;
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unsigned int _currentLevel;
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};
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int main( int argc, char **argv )
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{
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// use an ArgumentParser object to manage the program arguments.
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osg::ArgumentParser arguments(&argc,argv);
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// set up the usage document, in case we need to print out how to use this program.
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arguments.getApplicationUsage()->setApplicationName(arguments.getApplicationName());
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arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is an application for collecting a set of seperate files into a single archive file that can be later read in OSG applications..");
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arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
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// if user request help write it out to cout.
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if (arguments.read("-h") || arguments.read("--help"))
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{
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arguments.getApplicationUsage()->write(std::cout);
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return 1;
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}
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unsigned int maxLevels = 0;
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while(arguments.read("-l",maxLevels)) {}
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std::string fileCache;
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while(arguments.read("--file-cache",fileCache) || arguments.read("-c",fileCache)) {}
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if (!fileCache.empty())
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{
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std::string str("OSG_FILE_CACHE=");
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str += fileCache;
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putenv(strdup((char*)str.c_str()));
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}
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osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFiles(arguments);
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if (!loadedModel)
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{
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std::cout<<"No data loaded, please specify a database to load"<<std::endl;
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return 1;
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}
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LoadDataVisitor ldv(maxLevels);
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loadedModel->accept(ldv);
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return 0;
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}
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