[365] | 1 | #include "ReaderWriterDist.h" |
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| 2 | #include <osg/KdTree> |
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| 3 | |
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| 4 | ReaderWriterDist::ReaderWriterDist() |
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| 5 | { |
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| 6 | supportsExtension( "dist", "distortion set loader"); |
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[366] | 7 | extensionToAdd = ".dist"; |
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[365] | 8 | |
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[366] | 9 | // Configure Compression and instantiate read/write-options |
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| 10 | bool asAscii = true; |
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| 11 | bool compressionEnabled = false; |
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[365] | 12 | |
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[366] | 13 | std::string readOptionString = ""; |
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| 14 | std::string writeOptionString = ""; |
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| 15 | if(asAscii) |
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| 16 | { |
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| 17 | readOptionString = "Ascii"; |
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| 18 | writeOptionString = "Ascii"; |
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| 19 | } |
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| 20 | if (compressionEnabled) |
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| 21 | writeOptionString+=" Compressor=zlib"; |
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| 22 | readOptions = new osgDB::Options( readOptionString.c_str() ); |
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| 23 | writeOptions = new osgDB::Options( writeOptionString.c_str() ); |
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| 24 | |
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| 25 | // Get ReaderWriter |
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| 26 | rw = osgDB::Registry::instance()->getReaderWriterForExtension("osgt"); |
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[365] | 27 | } |
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| 28 | |
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[367] | 29 | ReaderWriterDist::Options* ReaderWriterDist::prepareReading( ReadResult& result, std::string& fileName, std::ios::openmode& mode, const Options* options ) const |
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[365] | 30 | { |
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[367] | 31 | std::string ext = osgDB::getLowerCaseFileExtension( fileName ); |
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| 32 | if ( !acceptsExtension(ext) ) |
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| 33 | { |
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| 34 | result = ReadResult::FILE_NOT_HANDLED; |
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| 35 | return 0; |
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| 36 | } |
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| 37 | fileName = osgDB::findDataFile( fileName, options ); |
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| 38 | if ( fileName.empty() ) |
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| 39 | { |
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| 40 | result = ReadResult::FILE_NOT_FOUND; |
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| 41 | return 0; |
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| 42 | } |
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[365] | 43 | |
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[367] | 44 | osg::ref_ptr<Options> local_opt = options ? |
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| 45 | static_cast<Options*>(options->clone(osg::CopyOp::SHALLOW_COPY)) : new Options; |
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| 46 | local_opt->getDatabasePathList().push_front(osgDB::getFilePath(fileName)); |
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[365] | 47 | |
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[367] | 48 | mode |= std::ios::binary; |
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| 49 | |
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| 50 | return local_opt.release(); |
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[366] | 51 | } |
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| 52 | |
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[367] | 53 | ReaderWriterDist::ReadResult ReaderWriterDist::readObject( const std::string& file, const Options* options) const |
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[366] | 54 | { |
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[368] | 55 | // This function must be reimplemented because the osgb|t|x plugin would test for a valid filename extension and thus would block the fiel due to it's .dist extension. |
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[367] | 56 | ReadResult result = ReadResult::FILE_LOADED; |
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| 57 | std::string fileName = file; |
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| 58 | std::ios::openmode mode = std::ios::in; |
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| 59 | Options* local_opt = prepareReading( result, fileName, mode, options ); |
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| 60 | if ( !result.success() ) return result; |
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| 61 | |
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| 62 | osgDB::ifstream istream( fileName.c_str(), mode ); |
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| 63 | return readObject( istream, local_opt ); |
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| 64 | } |
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| 65 | |
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| 66 | ReaderWriterDist::ReadResult ReaderWriterDist::readObject( std::istream& fin, const Options* options ) const |
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| 67 | { |
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[368] | 68 | // This function uses the osgb|t|x plugin to perform the operation |
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[366] | 69 | if ( rw ) |
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[365] | 70 | { |
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[366] | 71 | osgDB::ReaderWriter::ReadResult rr = rw->readObject( fin, readOptions ); |
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| 72 | if (rr.success()) |
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| 73 | { |
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| 74 | return( rr.takeObject() ); |
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| 75 | } |
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| 76 | else |
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| 77 | OSG_NOTIFY( osg::WARN ) << "ERROR: Unable to convert stream to node" << std::endl; |
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[365] | 78 | } |
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[367] | 79 | OSG_NOTIFY( osg::WARN ) << "ERROR: Unable to get ReaderWriter for internally used extension" << std::endl; |
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| 80 | return( ReadResult::NOT_IMPLEMENTED ); |
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[366] | 81 | } |
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[365] | 82 | |
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[367] | 83 | ReaderWriterDist::Options* ReaderWriterDist::prepareWriting( WriteResult& result, const std::string& fileName, std::ios::openmode& mode, const Options* options ) const |
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[366] | 84 | { |
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[367] | 85 | std::string ext = osgDB::getFileExtension( fileName ); |
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| 86 | if ( !acceptsExtension(ext) ) result = WriteResult::FILE_NOT_HANDLED; |
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[365] | 87 | |
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[367] | 88 | osg::ref_ptr<Options> local_opt = options ? |
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| 89 | static_cast<Options*>(options->clone(osg::CopyOp::SHALLOW_COPY)) : new Options; |
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| 90 | local_opt->getDatabasePathList().push_front(osgDB::getFilePath(fileName)); |
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[366] | 91 | |
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[367] | 92 | mode |= std::ios::binary; |
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[366] | 93 | |
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[367] | 94 | return local_opt.release(); |
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[365] | 95 | } |
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| 96 | |
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[367] | 97 | ReaderWriterDist::WriteResult ReaderWriterDist::writeObject( const osg::Object& object, const std::string& fileName, const osgDB::ReaderWriter::Options* options ) const |
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[366] | 98 | { |
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[368] | 99 | // This function must be reimplemented because the osgb|t|x plugin would test for a valid filename extension and thus would block the fiel due to it's .dist extension. |
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[367] | 100 | WriteResult result = WriteResult::FILE_SAVED; |
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| 101 | std::ios::openmode mode = std::ios::out; |
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| 102 | osg::ref_ptr<Options> local_opt = prepareWriting( result, fileName, mode, options ); |
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| 103 | if ( !result.success() ) return result; |
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| 104 | |
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| 105 | osgDB::ofstream fout( fileName.c_str(), mode ); |
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| 106 | if ( !fout ) return WriteResult::ERROR_IN_WRITING_FILE; |
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| 107 | |
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| 108 | result = writeObject( object, fout, local_opt.get() ); |
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| 109 | fout.close(); |
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| 110 | return result; |
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| 111 | } |
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| 112 | |
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| 113 | ReaderWriterDist::WriteResult ReaderWriterDist::writeObject( const osg::Object& object, std::ostream& fout, const osgDB::ReaderWriter::Options* options ) const |
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| 114 | { |
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[368] | 115 | // This function uses the osgb|t|x plugin to perform the operation |
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[366] | 116 | if ( rw ) |
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| 117 | { |
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[367] | 118 | osgDB::ReaderWriter::WriteResult wr = rw->writeObject( object, fout, writeOptions ); |
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[366] | 119 | if (wr.success() ) |
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| 120 | { |
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| 121 | OSG_NOTIFY( osg::WARN ) << "schreiben geschafft!"<< std::endl; |
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| 122 | } |
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| 123 | else OSG_NOTIFY( osg::WARN ) << "ERROR: Save failed: " << wr.message() << std::endl; |
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| 124 | return(wr); |
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| 125 | } |
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| 126 | OSG_NOTIFY( osg::WARN ) << "ERROR: Unable to get ReaderWriter for internally used extension" << std::endl; |
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[367] | 127 | return( WriteResult::NOT_IMPLEMENTED ); |
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[366] | 128 | } |
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| 129 | |
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[365] | 130 | // Add ourself to the Registry to instantiate the reader/writer. |
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[367] | 131 | REGISTER_OSGPLUGIN(dist, ReaderWriterDist) |
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