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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.

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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
2008-03-28 12:44:33 +00:00
parent 2567b810cf
commit 28f9b71dd4
32 changed files with 5103 additions and 42 deletions
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118
src/osgPlugins/OpenFlight/ReaderWriterFLT.cpp
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@@ -30,6 +30,9 @@
#include "Registry.h"
#include "Document.h"
#include "RecordInputStream.h"
#include "DataOutputStream.h"
#include "FltExportVisitor.h"
#include "ExportOptions.h"
#define SERIALIZER() OpenThreads::ScopedLock<OpenThreads::ReentrantMutex> lock(_serializerMutex)
@@ -81,9 +84,44 @@ public:
/*!
FLTReaderWriter supports importing and exporting OSG scene grqphs
from/to OpenFlight files.
<table>
<tr>
<th></th>
<th align="center">Node</th>
<th align="center">Object</th>
<th align="center">Image</th>
<th align="center">HeightField</th>
</tr>
<tr>
<td align="right">Read</td>
<td align="center"><strong>X</strong></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td align="right">Write</td>
<td align="center"><strong>X</strong></td>
<td></td>
<td></td>
<td></td>
</tr>
</table>
*/
class FLTReaderWriter : public ReaderWriter
{
public:
FLTReaderWriter()
: _implicitPath( "." )
{}
virtual const char* className() const { return "FLT Reader/Writer"; }
virtual bool acceptsExtension(const std::string& extension) const
@@ -347,11 +385,38 @@ class FLTReaderWriter : public ReaderWriter
return WriteResult::FILE_NOT_HANDLED;
}
virtual WriteResult writeNode(const Node& /*node*/,const std::string& /*fileName*/, const osgDB::ReaderWriter::Options* /*options*/) const
virtual WriteResult writeNode( const osg::Node& node, const std::string& fileName, const Options* options ) const
{
return WriteResult::FILE_NOT_HANDLED;
if ( fileName.empty() )
{
osg::notify( osg::FATAL ) << "fltexp: writeNode: empty file name" << std::endl;
return WriteResult::FILE_NOT_HANDLED;
}
std::string ext = osgDB::getLowerCaseFileExtension( fileName );
if ( !acceptsExtension(ext) )
return WriteResult::FILE_NOT_HANDLED;
// Get and save the implicit path name (in case a path wasn't specified in Options).
std::string filePath = osgDB::getFilePath( fileName );
if (!filePath.empty())
_implicitPath = filePath;
std::ofstream fOut;
fOut.open( fileName.c_str(), std::ios::out | std::ios::binary );
if ( fOut.fail())
{
osg::notify( osg::FATAL ) << "fltexp: Failed to open output stream." << std::endl;
return WriteResult::ERROR_IN_WRITING_FILE;
}
WriteResult wr = WriteResult::FILE_NOT_HANDLED;
wr = writeNode( node, fOut, options );
fOut.close();
return wr;
}
virtual WriteResult writeObject(const Object& object,std::ostream& fout, const osgDB::ReaderWriter::Options* options) const
{
const Node* node = dynamic_cast<const Node*>(&object);
@@ -359,12 +424,42 @@ class FLTReaderWriter : public ReaderWriter
return WriteResult::FILE_NOT_HANDLED;
}
virtual WriteResult writeNode(const Node& /*node*/,std::ostream& /*fout*/, const osgDB::ReaderWriter::Options* /*options*/) const
virtual WriteResult writeNode( const osg::Node& node, std::ostream& fOut, const Options* options ) const
{
return WriteResult::FILE_NOT_HANDLED;
// Convert Options to FltOptions.
ExportOptions* fltOpt = new ExportOptions( options );
fltOpt->parseOptionsString();
// If user didn't specify a temp dir, use the output directory
// that was implicit in the output file name.
if (fltOpt->getTempDir().empty())
fltOpt->setTempDir( _implicitPath );
if (!fltOpt->getTempDir().empty())
{
// If the temp directory doesn't already exist, make it.
if ( !osgDB::makeDirectory( fltOpt->getTempDir() ) )
{
osg::notify( osg::FATAL ) << "fltexp: Error creating temp dir: " << fltOpt->getTempDir() << std::endl;
return WriteResult::ERROR_IN_WRITING_FILE;
}
}
flt::DataOutputStream dos( fOut.rdbuf(), fltOpt->getValidateOnly() );
flt::FltExportVisitor fnv( &dos, fltOpt );
// Hm. 'node' is const, but in order to write out this scene graph,
// must use Node::accept() which requires 'node' to be non-const.
// Pretty much requires casting away const.
osg::Node* nodeNonConst = const_cast<osg::Node*>( &node );
nodeNonConst->accept( fnv );
fnv.complete( node );
// FIXME: Error-handling?
return WriteResult::FILE_SAVED;
}
protected:
mutable std::string _implicitPath;
mutable OpenThreads::ReentrantMutex _serializerMutex;
};
@@ -372,16 +467,3 @@ class FLTReaderWriter : public ReaderWriter
// now register with Registry to instantiate the above
// reader/writer.
REGISTER_OSGPLUGIN(OpenFlight, FLTReaderWriter)