From Paul Martz, "Here's the mods to the OpenFlight plugin to support FLT export. The ZIP file contains the new .cpp/h files as well as existing files that I modified.
Changes to existing files: ReaderWriter.cpp -- to support writeNode() of course. ReaderWriterATTR.cpp -- to support writeObject -- we write .attr files for textures, if they don't already exist. AttrData.cpp/.h -- Minor fixes. CMakeLists.txt -- to include the new files in the build." From Robert Osfield, port to non Windows platforms just required fixing of header capitilization errors that windows lets through the net due to having a case insensitive file system.
This commit is contained in:
Robert Osfield
231
src/osgPlugins/OpenFlight/ExportOptions.cpp
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231
src/osgPlugins/OpenFlight/ExportOptions.cpp
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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 (at
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* your option) any later version. The full license is in the 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, but
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* 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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//
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// Copyright(c) 2008 Skew Matrix Software LLC.
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//
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#include <osg/Notify>
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#include <osg/ProxyNode>
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#include <osgDB/FileNameUtils>
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#include <osgDB/FileUtils>
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#include <osgDB/Registry>
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#include <osgDB/ReadFile>
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#include "ExportOptions.h"
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//#include "DataOutputStream.h"
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//#include "FltNodeVisitor.h"
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#include <fstream>
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#include <sstream>
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namespace flt
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{
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/** @name Valid Option Strings
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* This plugin supports the following \c Option string values.
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*/
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//@{
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/** Value: "version".
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* Specifies the version of the output OpenFlight file. Supported values
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* include 15.7, 15.8, and 16.1. Default is 16.1. Example:
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* "version=15.8".
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*/
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std::string ExportOptions::_versionOption( "version" );
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/** Value: "units".
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* Specifies the contents of the \c Units field of the OpenFliht header record.
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* Valid values include INCHES, FEET, METERS, KILOMETERS, and NATICAL_MILES.
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* Default is METERS. Example: "units=METERS".
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*/
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std::string ExportOptions::_unitsOption( "units" );
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/** Value: "validate".
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* If present in the Options string, the plugin does not write an OpenFlight file.
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* Instead, it returns an indication of the scene graph's suitability for
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* OpenFlight export.
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*/
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std::string ExportOptions::_validateOption( "validate" );
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/** Value: "tempDir".
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* Specifies the directory to use for creation of temporary files. If not
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* specified, the directory is taken from the file name. If the file doesn't
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* contain a path, the current working directory is used. Applications should
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* set this to the name of their app-specific temp directory. If the path
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* contains spaces, use double quotes to ensure correct parsing. Examples:
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* "tempDir=/tmp".
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* "tempDir=\"C:\\My Temp Dir\"".
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*/
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std::string ExportOptions::_tempDirOption( "tempDir" );
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/** Value: "lighting".
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* Specifies a default enable/disable state for lighting, for Nodes in the
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* exported scene graph that don't set it explicitly. By default, the
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* exporter assumes lighting is enabled (GL_LIGHTING ON). Set this to
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* either ON or OFF. Example:
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* "lighting=OFF".
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*/
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std::string ExportOptions::_lightingOption( "lighting" );
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/** Value: "stripTextureFilePath".
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* If present in the Options string, the exporter strips the path from
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* texture file names, and writes only the texure file name to the FLT
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* Texture Palette. By default, the exporter doesn't strip the path,
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* and the name written to the Texture Palette is taken directly from
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* the osg::Image object referenced by the osg::Texture2D StateAttribute.
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*/
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std::string ExportOptions::_stripTextureFilePathOption( "stripTextureFilePath" );
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//@}
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using namespace osgDB;
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const int ExportOptions::VERSION_15_7( 1570 );
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const int ExportOptions::VERSION_15_8( 1580 );
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const int ExportOptions::VERSION_16_1( 1610 );
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ExportOptions::ExportOptions()
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: _version( VERSION_16_1 ),
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_units( METERS ),
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_validate( false ),
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_lightingDefault( true ),
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_stripTextureFilePath( false )
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{
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}
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ExportOptions::ExportOptions( const osgDB::ReaderWriter::Options* opt )
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: _version( VERSION_16_1 ),
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_units( METERS ),
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_validate( false ),
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_lightingDefault( true )
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{
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if (opt)
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{
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const ExportOptions* fltOpt = dynamic_cast<const ExportOptions*>( opt );
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if (fltOpt)
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{
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_version = fltOpt->_version;
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_units = fltOpt->_units;
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_validate = fltOpt->_validate;
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_tempDir = fltOpt->_tempDir;
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_lightingDefault = fltOpt->_lightingDefault;
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}
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setOptionString( opt->getOptionString() );
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}
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}
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void
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ExportOptions::parseOptionsString()
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{
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// Parse out the option string and store values directly in
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// ExportOptions member variables.
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const std::string& str = getOptionString();
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if (str.empty())
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return;
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std::string::size_type pos( 0 );
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while (pos != str.npos)
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{
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// Skip leading spaces.
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while ( (pos < str.length()) &&
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(str[pos] == ' ') )
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pos++;
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// Get the next token
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std::string::size_type count = str.substr( pos ).find_first_of( " =" );
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std::string token = str.substr( pos, count );
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if (count == str.npos)
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pos = str.npos;
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else
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pos += (count+1);
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// See if it's a Boolen/toggle
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if ( token == _validateOption )
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{
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osg::notify( osg::INFO ) << "fltexp: Found: " << token << std::endl;
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setValidateOnly( true );
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continue;
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}
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if ( token == _stripTextureFilePathOption )
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{
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osg::notify( osg::INFO ) << "fltexp: Found: " << token << std::endl;
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setStripTextureFilePath( true );
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continue;
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}
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// Not a Boolean/toggle. Must have a value.
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// Get the value of the token, which could be double-quoted.
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if( str[pos] == '"' )
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{
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++pos;
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count = str.substr( pos ).find_first_of( '"' );
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}
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else
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count = str.substr( pos ).find_first_of( ' ' );
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std::string value = str.substr( pos, count );
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if (count == str.npos)
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pos = str.npos;
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else
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pos += (count+1);
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if (token == _versionOption)
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{
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osg::notify( osg::INFO ) << "fltexp: Token: " << token << ", Value: " << value << std::endl;
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int version( VERSION_16_1 );
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if( value == std::string( "15.7" ) )
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version = VERSION_15_7;
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else if( value == std::string( "15.8" ) )
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version = VERSION_15_8;
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else if( value != std::string( "16.1" ) )
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osg::notify( osg::WARN ) << "fltexp: Unsupported version: " << value << ". Defaulting to 16.1." << std::endl;
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setFlightFileVersionNumber( version );
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}
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else if (token == _unitsOption)
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{
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osg::notify( osg::INFO ) << "fltexp: Token: " << token << ", Value: " << value << std::endl;
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FlightUnits units( METERS );
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if( value == std::string( "KILOMETERS" ) )
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units = KILOMETERS;
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else if( value == std::string( "FEET" ) )
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units = FEET;
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else if( value == std::string( "INCHES" ) )
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units = INCHES;
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else if( value == std::string( "NAUTICAL_MILES" ) )
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units = NAUTICAL_MILES;
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else if( value != std::string( "METERS" ) )
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osg::notify( osg::WARN ) << "fltexp: Unsupported units: " << value << ". Defaulting to METERS." << std::endl;
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setFlightUnits( units );
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}
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else if (token == _tempDirOption)
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{
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osg::notify( osg::INFO ) << "fltexp: Token: " << token << ", Value: " << value << std::endl;
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setTempDir( value );
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}
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else if (token == _lightingOption)
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{
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osg::notify( osg::INFO ) << "fltexp: Token: " << token << ", Value: " << value << std::endl;
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bool lighting( true );
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if (value == std::string( "OFF" ) )
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lighting = false;
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else if (value != std::string( "ON" ) )
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osg::notify( osg::WARN ) << "fltexp: Unsupported lighting value: " << value << ". Defaulting to ON." << std::endl;
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setLightingDefault( lighting );
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}
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else
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osg::notify( osg::WARN ) << "fltexp: Bogus OptionString: " << token << std::endl;
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}
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}
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}
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