667 lines
29 KiB
C++
667 lines
29 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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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
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* (at your option) any later version. The full license is in 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,
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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. See the
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* OpenSceneGraph Public License for more details.
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*/
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#ifndef OSGDB_REGISTRY
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#define OSGDB_REGISTRY 1
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#include <osg/ref_ptr>
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#include <osg/ArgumentParser>
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#include <osg/KdTree>
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#include <osgDB/DynamicLibrary>
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#include <osgDB/ReaderWriter>
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#include <osgDB/DotOsgWrapper>
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#include <osgDB/DatabasePager>
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#include <vector>
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#include <map>
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#include <string>
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extern "C"
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{
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typedef void (* CPluginFunction) (void);
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}
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namespace osgDB {
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/** basic structure for custom runtime inheritance checking */
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struct basic_type_wrapper {
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virtual ~basic_type_wrapper() {}
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virtual bool matches(const osg::Object *proto) const = 0;
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};
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/** a class template that checks inheritance between a given
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Object's class and a class defined at compile time through
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the template parameter T.
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This is used in conjunction with readObjectOfType() to
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specify an abstract class as reference type.
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**/
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template<class T>
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struct type_wrapper: basic_type_wrapper {
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bool matches(const osg::Object *proto) const
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{
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return dynamic_cast<const T*>(proto) != 0;
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}
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};
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/**
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Registry is a singleton factory which stores
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the reader/writers which are linked in
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at runtime for reading non-native file formats.
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The RegisterDotOsgWrapperProxy can be used to automatically register
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DotOsgWrappers, at runtime with the Registry. A DotOsgWrapper encapsulates
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the functions that can read and write to the .osg for each osg::Object.
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The RegisterReaderWriterProxy can be used to automatically
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register at runtime a reader/writer with the Registry.
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*/
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class OSGDB_EXPORT Registry : public osg::Referenced
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{
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public:
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static Registry* instance(bool erase = false);
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/** read the command line arguments.*/
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void readCommandLine(osg::ArgumentParser& commandLine);
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/** register an .fileextension alias to mapExt toExt, the later
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* should the the extension name of the readerwriter plugin library.
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* For example to map .tif files to the tiff loader, use
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* addExtAlias("tif","tiff") which will enable .tif to be read
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* by the libdb_tiff readerwriter plugin.*/
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void addFileExtensionAlias(const std::string mapExt, const std::string toExt);
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/** Reads a file that configures extension mappings. File is ASCII text
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* and each line contains the parameters to the addFileExtensionAlias
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* method. Lines can be commented out with an initial '#' character.*/
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bool readPluginAliasConfigurationFile( const std::string& file );
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void addDotOsgWrapper(DotOsgWrapper* wrapper);
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void removeDotOsgWrapper(DotOsgWrapper* wrapper);
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void addReaderWriter(ReaderWriter* rw);
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void removeReaderWriter(ReaderWriter* rw);
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/** create the platform specific library name associated with file.*/
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std::string createLibraryNameForFile(const std::string& fileName);
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/** create the platform specific library name associated with file extension.*/
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std::string createLibraryNameForExtension(const std::string& ext);
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/** create the platform specific library name associated with nodekit library name.*/
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std::string createLibraryNameForNodeKit(const std::string& name);
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/** find the library in the OSG_LIBRARY_PATH and load it.*/
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bool loadLibrary(const std::string& fileName);
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/** close the attached library with specified name.*/
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bool closeLibrary(const std::string& fileName);
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/** close all libraries.*/
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void closeAllLibraries();
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/** get a reader writer which handles specified extension.*/
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ReaderWriter* getReaderWriterForExtension(const std::string& ext);
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osg::Object* readObjectOfType(const osg::Object& compObj,Input& fr);
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osg::Object* readObjectOfType(const basic_type_wrapper &btw, Input& fr);
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osg::Object* readObject(Input& fr);
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osg::Image* readImage(Input& fr);
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osg::Drawable* readDrawable(Input& fr);
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osg::Uniform* readUniform(Input& fr);
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osg::StateAttribute* readStateAttribute(Input& fr);
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osg::Node* readNode(Input& fr);
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osg::Shader* readShader(Input& fr);
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bool writeObject(const osg::Object& obj,Output& fw);
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class ReadFileCallback : public virtual osg::Referenced
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{
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public:
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virtual ReaderWriter::ReadResult openArchive(const std::string& filename,ReaderWriter::ArchiveStatus status, unsigned int indexBlockSizeHint, const ReaderWriter::Options* useObjectCache)
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{
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return osgDB::Registry::instance()->openArchiveImplementation(filename, status, indexBlockSizeHint, useObjectCache);
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}
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virtual ReaderWriter::ReadResult readObject(const std::string& filename, const ReaderWriter::Options* options)
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{
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return osgDB::Registry::instance()->readObjectImplementation(filename,options);
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}
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virtual ReaderWriter::ReadResult readImage(const std::string& filename, const ReaderWriter::Options* options)
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{
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return osgDB::Registry::instance()->readImageImplementation(filename,options);
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}
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virtual ReaderWriter::ReadResult readHeightField(const std::string& filename, const ReaderWriter::Options* options)
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{
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return osgDB::Registry::instance()->readHeightFieldImplementation(filename,options);
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}
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virtual ReaderWriter::ReadResult readNode(const std::string& filename, const ReaderWriter::Options* options)
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{
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return osgDB::Registry::instance()->readNodeImplementation(filename,options);
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}
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virtual ReaderWriter::ReadResult readShader(const std::string& filename, const ReaderWriter::Options* options)
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{
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return osgDB::Registry::instance()->readShaderImplementation(filename,options);
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}
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protected:
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virtual ~ReadFileCallback() {}
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};
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/** Set the Registry callback to use in place of the default readFile calls.*/
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void setReadFileCallback( ReadFileCallback* cb) { _readFileCallback = cb; }
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/** Get the readFile callback.*/
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ReadFileCallback* getReadFileCallback() { return _readFileCallback.get(); }
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/** Get the const readFile callback.*/
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const ReadFileCallback* getReadFileCallback() const { return _readFileCallback.get(); }
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ReaderWriter::ReadResult openArchive(const std::string& fileName,ReaderWriter::ArchiveStatus status, unsigned int indexBlockSizeHint, const ReaderWriter::Options* options)
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{
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if (_readFileCallback.valid()) return _readFileCallback->openArchive(fileName, status, indexBlockSizeHint, options);
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else return openArchiveImplementation(fileName, status, indexBlockSizeHint, options);
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}
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ReaderWriter::ReadResult openArchiveImplementation(const std::string& fileName, ReaderWriter::ArchiveStatus status, unsigned int indexBlockSizeHint, const ReaderWriter::Options* options);
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ReaderWriter::ReadResult readObject(const std::string& fileName,const ReaderWriter::Options* options)
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{
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ReaderWriter::ReadResult result = _readFileCallback.valid() ?
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_readFileCallback->readObject(fileName,options) :
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readObjectImplementation(fileName,options);
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buildKdTreeIfRequired(result, options);
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return result;
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}
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ReaderWriter::ReadResult readObjectImplementation(const std::string& fileName,const ReaderWriter::Options* options);
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ReaderWriter::ReadResult readImage(const std::string& fileName,const ReaderWriter::Options* options)
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{
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if (_readFileCallback.valid()) return _readFileCallback->readImage(fileName,options);
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else return readImageImplementation(fileName,options);
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}
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ReaderWriter::ReadResult readImageImplementation(const std::string& fileName,const ReaderWriter::Options* options);
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ReaderWriter::ReadResult readHeightField(const std::string& fileName,const ReaderWriter::Options* options)
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{
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if (_readFileCallback.valid()) return _readFileCallback->readHeightField(fileName,options);
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else return readHeightFieldImplementation(fileName,options);
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}
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ReaderWriter::ReadResult readHeightFieldImplementation(const std::string& fileName,const ReaderWriter::Options* options);
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ReaderWriter::ReadResult readNode(const std::string& fileName,const ReaderWriter::Options* options)
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{
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ReaderWriter::ReadResult result = _readFileCallback.valid() ?
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_readFileCallback->readNode(fileName,options) :
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readNodeImplementation(fileName,options);
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buildKdTreeIfRequired(result, options);
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return result;
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}
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ReaderWriter::ReadResult readNodeImplementation(const std::string& fileName,const ReaderWriter::Options* options);
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ReaderWriter::ReadResult readShader(const std::string& fileName,const ReaderWriter::Options* options)
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{
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if (_readFileCallback.valid()) return _readFileCallback->readShader(fileName,options);
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else return readShaderImplementation(fileName,options);
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}
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ReaderWriter::ReadResult readShaderImplementation(const std::string& fileName,const ReaderWriter::Options* options);
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class WriteFileCallback : public virtual osg::Referenced
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{
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public:
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virtual ReaderWriter::WriteResult writeObject(const osg::Object& obj, const std::string& fileName,const ReaderWriter::Options* options)
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{
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return osgDB::Registry::instance()->writeObjectImplementation(obj,fileName,options);
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}
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virtual ReaderWriter::WriteResult writeImage(const osg::Image& obj, const std::string& fileName,const ReaderWriter::Options* options)
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{
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return osgDB::Registry::instance()->writeImageImplementation(obj,fileName,options);
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}
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virtual ReaderWriter::WriteResult writeHeightField(const osg::HeightField& obj, const std::string& fileName,const ReaderWriter::Options* options)
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{
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return osgDB::Registry::instance()->writeHeightFieldImplementation(obj,fileName,options);
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}
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virtual ReaderWriter::WriteResult writeNode(const osg::Node& obj, const std::string& fileName,const ReaderWriter::Options* options)
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{
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return osgDB::Registry::instance()->writeNodeImplementation(obj,fileName,options);
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}
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virtual ReaderWriter::WriteResult writeShader(const osg::Shader& obj, const std::string& fileName,const ReaderWriter::Options* options)
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{
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return osgDB::Registry::instance()->writeShaderImplementation(obj,fileName,options);
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}
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protected:
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virtual ~WriteFileCallback() {}
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};
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/** Set the Registry callback to use in place of the default writeFile calls.*/
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void setWriteFileCallback( WriteFileCallback* cb) { _writeFileCallback = cb; }
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/** Get the writeFile callback.*/
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WriteFileCallback* getWriteFileCallback() { return _writeFileCallback.get(); }
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/** Get the const writeFile callback.*/
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const WriteFileCallback* getWriteFileCallback() const { return _writeFileCallback.get(); }
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ReaderWriter::WriteResult writeObject(const osg::Object& obj, const std::string& fileName,const ReaderWriter::Options* options)
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{
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if (_writeFileCallback.valid()) return _writeFileCallback->writeObject(obj,fileName,options);
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else return writeObjectImplementation(obj,fileName,options);
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}
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ReaderWriter::WriteResult writeObjectImplementation(const osg::Object& obj, const std::string& fileName,const ReaderWriter::Options* options);
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ReaderWriter::WriteResult writeImage(const osg::Image& obj, const std::string& fileName,const ReaderWriter::Options* options)
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{
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if (_writeFileCallback.valid()) return _writeFileCallback->writeImage(obj,fileName,options);
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else return writeImageImplementation(obj,fileName,options);
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}
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ReaderWriter::WriteResult writeImageImplementation(const osg::Image& obj, const std::string& fileName,const ReaderWriter::Options* options);
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ReaderWriter::WriteResult writeHeightField(const osg::HeightField& obj, const std::string& fileName,const ReaderWriter::Options* options)
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{
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if (_writeFileCallback.valid()) return _writeFileCallback->writeHeightField(obj,fileName,options);
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else return writeHeightFieldImplementation(obj,fileName,options);
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}
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ReaderWriter::WriteResult writeHeightFieldImplementation(const osg::HeightField& obj, const std::string& fileName,const ReaderWriter::Options* options);
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ReaderWriter::WriteResult writeNode(const osg::Node& node, const std::string& fileName,const ReaderWriter::Options* options)
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{
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if (_writeFileCallback.valid()) return _writeFileCallback->writeNode(node,fileName,options);
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else return writeNodeImplementation(node,fileName,options);
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}
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ReaderWriter::WriteResult writeNodeImplementation(const osg::Node& node, const std::string& fileName,const ReaderWriter::Options* options);
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ReaderWriter::WriteResult writeShader(const osg::Shader& obj, const std::string& fileName,const ReaderWriter::Options* options)
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{
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if (_writeFileCallback.valid()) return _writeFileCallback->writeShader(obj,fileName,options);
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else return writeShaderImplementation(obj,fileName,options);
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}
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ReaderWriter::WriteResult writeShaderImplementation(const osg::Shader& obj, const std::string& fileName,const ReaderWriter::Options* options);
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inline void buildKdTreeIfRequired(ReaderWriter::ReadResult& result, const ReaderWriter::Options* options)
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{
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bool doKdTreeBuilder = (options && options->getBuildKdTreesHint()!=ReaderWriter::Options::NO_PREFERENCE) ?
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options->getBuildKdTreesHint() == ReaderWriter::Options::BUILD_KDTREES :
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_buildKdTreesHint == ReaderWriter::Options::BUILD_KDTREES;
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if (doKdTreeBuilder && _kdTreeBuilder.valid() && result.validNode())
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{
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osg::ref_ptr<osg::KdTreeBuilder> builder = _kdTreeBuilder->clone();
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result.getNode()->accept(*builder);
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}
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}
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void setBuildKdTreesHint(ReaderWriter::Options::BuildKdTreesHint hint) { _buildKdTreesHint = hint; }
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ReaderWriter::Options::BuildKdTreesHint getBuildKdTreesHint() const { return _buildKdTreesHint; }
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void setKdTreeBuilder(osg::KdTreeBuilder* builder) { _kdTreeBuilder = builder; }
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osg::KdTreeBuilder* getKdTreeBuilder() { return _kdTreeBuilder.get(); }
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void setCreateNodeFromImage(bool flag) { _createNodeFromImage = flag; }
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bool getCreateNodeFromImage() const { return _createNodeFromImage; }
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void setOptions(ReaderWriter::Options* opt) { _options = opt; }
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ReaderWriter::Options* getOptions() { return _options.get(); }
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const ReaderWriter::Options* getOptions() const { return _options.get(); }
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/** initialize both the Data and Library FilePaths, by default called by the
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* constructor, so it should only be required if you want to force
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* the re-reading of environmental variables.*/
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void initFilePathLists() { initDataFilePathList(); initLibraryFilePathList(); }
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/** initialize the Data FilePath by reading the OSG_FILE_PATH environmental variable.*/
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void initDataFilePathList();
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/** Set the data file path using a list of paths stored in a FilePath, which is used when search for data files.*/
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void setDataFilePathList(const FilePathList& filepath) { _dataFilePath = filepath; }
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/** Set the data file path using a single string delimited either with ';' (Windows) or ':' (All other platforms), which is used when search for data files.*/
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void setDataFilePathList(const std::string& paths);
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/** get the data file path which is used when search for data files.*/
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FilePathList& getDataFilePathList() { return _dataFilePath; }
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/** get the const data file path which is used when search for data files.*/
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const FilePathList& getDataFilePathList() const { return _dataFilePath; }
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/** initialize the Library FilePath by reading the OSG_LIBRARY_PATH
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* and the appropriate system environmental variables*/
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void initLibraryFilePathList();
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/** Set the library file path using a list of paths stored in a FilePath, which is used when search for data files.*/
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void setLibraryFilePathList(const FilePathList& filepath) { _libraryFilePath = filepath; }
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/** Set the library file path using a single string delimited either with ';' (Windows) or ':' (All other platforms), which is used when search for data files.*/
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void setLibraryFilePathList(const std::string& paths);
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/** get the library file path which is used when search for library (dso/dll's) files.*/
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FilePathList& getLibraryFilePathList() { return _libraryFilePath; }
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/** get the const library file path which is used when search for library (dso/dll's) files.*/
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const FilePathList& getLibraryFilePathList() const { return _libraryFilePath; }
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/** For each object in the cache which has an reference count greater than 1
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* (and therefore referenced by elsewhere in the application) set the time stamp
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* for that object in the cache to specified time.
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* This would typically be called once per frame by applications which are doing database paging,
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* and need to prune objects that are no longer required.
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* Time value is time in seconds.*/
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void updateTimeStampOfObjectsInCacheWithExternalReferences(double currentTime);
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/** Removed object in the cache which have a time stamp at or before the specified expiry time.
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* This would typically be called once per frame by applications which are doing database paging,
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* and need to prune objects that are no longer required, and called after the a called
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* after the call to updateTimeStampOfObjectsInCacheWithExternalReferences(currentTime).
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* Note, the currentTime is not the expiryTime, one would typically set the expiry time
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* to a fixed amount of time before currentTime, such as expiryTime = currentTime-10.0.
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* Time value is time in seconds.*/
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void removeExpiredObjectsInCache(double expiryTime);
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/** Remove all objects in the cache regardless of having external references or expiry times.*/
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void clearObjectCache();
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/** Add a filename,object,timestamp triple to the Registry::ObjectCache.*/
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void addEntryToObjectCache(const std::string& filename, osg::Object* object, double timestamp = 0.0);
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/** Get an object from the object cache*/
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osg::Object* getFromObjectCache(const std::string& fileName);
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/** Add archive to archive cache so that future calls reference this archive.*/
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void addToArchiveCache(const std::string& fileName, osgDB::Archive* archive);
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/** Remove archive from cache.*/
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void removeFromArchiveCache(const std::string& fileName);
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/** Get an archive from the archive cache*/
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osgDB::Archive* getFromArchiveCache(const std::string& fileName);
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/** Remove all archives from the archive cache.*/
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void clearArchiveCache();
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/** If State is non-zero, this function releases OpenGL objects for
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* the specified graphics context. Otherwise, releases OpenGL objexts
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* for all graphics contexts. */
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void releaseGLObjects(osg::State* state=0);
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/** get the attached library with specified name.*/
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DynamicLibrary* getLibrary(const std::string& fileName);
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/** Set the DatabasePager.*/
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void setDatabasePager(DatabasePager* databasePager) { _databasePager = databasePager; }
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/** Get the DatabasePager, creating one if one is not already created.*/
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DatabasePager* getOrCreateDatabasePager();
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/** Get the DatabasePager. Return 0 if no DatabasePager has been assigned.*/
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DatabasePager* getDatabasePager() { return _databasePager.get(); }
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/** Set the SharedStateManager.*/
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void setSharedStateManager(SharedStateManager* SharedStateManager) { _sharedStateManager = SharedStateManager; }
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/** Get the SharedStateManager, creating one if one is not already created.*/
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SharedStateManager* getOrCreateSharedStateManager();
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/** Get the SharedStateManager. Return 0 if no SharedStateManager has been assigned.*/
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SharedStateManager* getSharedStateManager() { return _sharedStateManager.get(); }
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/** Add an Archive extension.*/
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void addArchiveExtension(const std::string ext);
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protected:
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virtual ~Registry();
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typedef std::vector< osg::ref_ptr<ReaderWriter> > ReaderWriterList;
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typedef std::map< std::string, osg::ref_ptr<DotOsgWrapper> > DotOsgWrapperMap;
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typedef std::vector< osg::ref_ptr<DynamicLibrary> > DynamicLibraryList;
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typedef std::map< std::string, std::string> ExtensionAliasMap;
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typedef std::vector< std::string> ArchiveExtensionList;
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typedef std::pair<osg::ref_ptr<osg::Object>, double > ObjectTimeStampPair;
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typedef std::map<std::string, ObjectTimeStampPair > ObjectCache;
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typedef std::map<std::string, osg::ref_ptr<osgDB::Archive> > ArchiveCache;
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|
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/** constructor is private, as its a singleton, preventing
|
|
construction other than via the instance() method and
|
|
therefore ensuring only one copy is ever constructed*/
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Registry();
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|
|
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/** get the attached library with specified name.*/
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DynamicLibraryList::iterator getLibraryItr(const std::string& fileName);
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|
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ReaderWriter::Options::BuildKdTreesHint _buildKdTreesHint;
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osg::ref_ptr<osg::KdTreeBuilder> _kdTreeBuilder;
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|
|
|
bool _createNodeFromImage;
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|
|
|
osg::Object* readObject(DotOsgWrapperMap& dowMap,Input& fr);
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|
|
|
void eraseWrapper(DotOsgWrapperMap& wrappermap,DotOsgWrapper* wrapper);
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|
|
|
public:
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|
/** Functor used in internal implementations.*/
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|
struct ReadFunctor
|
|
{
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|
ReadFunctor(const std::string& filename, const ReaderWriter::Options* options):
|
|
_filename(filename),
|
|
_options(options) {}
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|
|
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virtual ~ReadFunctor() {}
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virtual ReaderWriter::ReadResult doRead(ReaderWriter& rw) const = 0;
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virtual bool isValid(ReaderWriter::ReadResult& readResult) const = 0;
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|
virtual bool isValid(osg::Object* object) const = 0;
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|
|
|
std::string _filename;
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|
const ReaderWriter::Options* _options;
|
|
};
|
|
|
|
protected:
|
|
|
|
void destruct();
|
|
|
|
// forward declare helper classes
|
|
struct ReadObjectFunctor;
|
|
struct ReadImageFunctor;
|
|
struct ReadHeightFieldFunctor;
|
|
struct ReadNodeFunctor;
|
|
struct ReadArchiveFunctor;
|
|
struct ReadShaderFunctor;
|
|
|
|
// make helper classes friends to get round VS6.0 "issues"
|
|
friend struct ReadFunctor;
|
|
friend struct ReadObjectFunctor;
|
|
friend struct ReadImageFunctor;
|
|
friend struct ReadHeightFieldFunctor;
|
|
friend struct ReadNodeFunctor;
|
|
friend struct ReadArchiveFunctor;
|
|
friend struct ReadShaderFunctor;
|
|
|
|
ReaderWriter::ReadResult read(const ReadFunctor& readFunctor);
|
|
ReaderWriter::ReadResult readImplementation(const ReadFunctor& readFunctor,bool useObjectCache);
|
|
|
|
|
|
// forward declare helper class
|
|
class AvailableReaderWriterIterator;
|
|
friend class AvailableReaderWriterIterator;
|
|
|
|
|
|
osg::ref_ptr<ReadFileCallback> _readFileCallback;
|
|
osg::ref_ptr<WriteFileCallback> _writeFileCallback;
|
|
|
|
DotOsgWrapperMap _objectWrapperMap;
|
|
DotOsgWrapperMap _imageWrapperMap;
|
|
DotOsgWrapperMap _drawableWrapperMap;
|
|
DotOsgWrapperMap _stateAttrWrapperMap;
|
|
DotOsgWrapperMap _uniformWrapperMap;
|
|
DotOsgWrapperMap _nodeWrapperMap;
|
|
DotOsgWrapperMap _shaderWrapperMap;
|
|
|
|
DotOsgWrapperMap _classNameWrapperMap;
|
|
|
|
ReaderWriterList _rwList;
|
|
DynamicLibraryList _dlList;
|
|
|
|
bool _openingLibrary;
|
|
|
|
// map to alias to extensions to plugins.
|
|
ExtensionAliasMap _extAliasMap;
|
|
|
|
// Utility: Removes whitespace from both ends of a string.
|
|
static std::string trim( const std::string& str );
|
|
|
|
// options to pass to reader writers.
|
|
osg::ref_ptr<ReaderWriter::Options> _options;
|
|
|
|
FilePathList _dataFilePath;
|
|
FilePathList _libraryFilePath;
|
|
|
|
ObjectCache _objectCache;
|
|
OpenThreads::Mutex _objectCacheMutex;
|
|
|
|
ArchiveCache _archiveCache;
|
|
OpenThreads::Mutex _archiveCacheMutex;
|
|
|
|
ArchiveExtensionList _archiveExtList;
|
|
|
|
osg::ref_ptr<DatabasePager> _databasePager;
|
|
osg::ref_ptr<SharedStateManager> _sharedStateManager;
|
|
|
|
};
|
|
|
|
/** read the command line arguments.*/
|
|
inline void readCommandLine(osg::ArgumentParser& parser)
|
|
{
|
|
Registry::instance()->readCommandLine(parser);
|
|
}
|
|
|
|
/** Proxy class for automatic registration of DotOsgWrappers with the Registry.*/
|
|
class RegisterDotOsgWrapperProxy
|
|
{
|
|
public:
|
|
|
|
RegisterDotOsgWrapperProxy(osg::Object* proto,
|
|
const std::string& name,
|
|
const std::string& associates,
|
|
DotOsgWrapper::ReadFunc readFunc,
|
|
DotOsgWrapper::WriteFunc writeFunc,
|
|
DotOsgWrapper::ReadWriteMode readWriteMode=DotOsgWrapper::READ_AND_WRITE)
|
|
{
|
|
if (Registry::instance())
|
|
{
|
|
_wrapper = new DotOsgWrapper(proto,name,associates,readFunc,writeFunc,readWriteMode);
|
|
Registry::instance()->addDotOsgWrapper(_wrapper.get());
|
|
}
|
|
}
|
|
|
|
~RegisterDotOsgWrapperProxy()
|
|
{
|
|
if (Registry::instance())
|
|
{
|
|
Registry::instance()->removeDotOsgWrapper(_wrapper.get());
|
|
}
|
|
}
|
|
|
|
protected:
|
|
osg::ref_ptr<DotOsgWrapper> _wrapper;
|
|
};
|
|
|
|
template<class T>
|
|
class TemplateRegisterDotOsgWrapperProxy : public RegisterDotOsgWrapperProxy, public T
|
|
{
|
|
public:
|
|
|
|
TemplateRegisterDotOsgWrapperProxy(osg::Object* proto,
|
|
const std::string& name,
|
|
const std::string& associates,
|
|
DotOsgWrapper::ReadFunc readFunc,
|
|
DotOsgWrapper::WriteFunc writeFunc,
|
|
DotOsgWrapper::ReadWriteMode readWriteMode=DotOsgWrapper::READ_AND_WRITE):
|
|
RegisterDotOsgWrapperProxy(proto, name, associates, readFunc, writeFunc, readWriteMode) {}
|
|
|
|
};
|
|
|
|
/** Proxy class for automatic registration of reader/writers with the Registry.*/
|
|
template<class T>
|
|
class RegisterReaderWriterProxy
|
|
{
|
|
public:
|
|
RegisterReaderWriterProxy()
|
|
{
|
|
if (Registry::instance())
|
|
{
|
|
_rw = new T;
|
|
Registry::instance()->addReaderWriter(_rw.get());
|
|
}
|
|
}
|
|
|
|
~RegisterReaderWriterProxy()
|
|
{
|
|
if (Registry::instance())
|
|
{
|
|
Registry::instance()->removeReaderWriter(_rw.get());
|
|
}
|
|
}
|
|
|
|
T* get() { return _rw.get(); }
|
|
|
|
protected:
|
|
osg::ref_ptr<T> _rw;
|
|
};
|
|
|
|
|
|
struct PluginFunctionProxy
|
|
{
|
|
PluginFunctionProxy(CPluginFunction function) { (function)(); }
|
|
};
|
|
|
|
#define USE_OSGPLUGIN(ext) \
|
|
extern "C" void osgdb_##ext(void); \
|
|
static osgDB::PluginFunctionProxy proxy_##ext(osgdb_##ext);
|
|
|
|
#define REGISTER_OSGPLUGIN(ext, classname) \
|
|
extern "C" void osgdb_##ext(void) {} \
|
|
static osgDB::RegisterReaderWriterProxy<classname> g_proxy_##classname;
|
|
|
|
}
|
|
|
|
#endif
|