269 lines
10 KiB
C++
269 lines
10 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2010 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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// Written by Wang Rui, (C) 2010
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#ifndef OSGDB_OBJECTWRAPPER
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#define OSGDB_OBJECTWRAPPER
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#include <osgDB/Serializer>
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#include <osg/ScriptEngine>
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namespace osgDB
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{
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typedef std::vector<std::string> StringList;
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extern OSGDB_EXPORT void split( const std::string& src, StringList& list, char separator=' ' );
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struct MethodObject : public osg::Referenced
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{
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typedef std::vector< osg::ref_ptr<osg::Object> > Parameters;
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virtual bool run(void* objectPtr, osg::Parameters& inputParameters, osg::Parameters& outputParameters) const = 0;
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virtual ~MethodObject() {}
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};
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class OSGDB_EXPORT BaseCompressor : public osg::Referenced
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{
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public:
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BaseCompressor() {}
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void setName( const std::string& name ) { _name = name; }
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const std::string& getName() const { return _name; }
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virtual bool compress( std::ostream&, const std::string& ) = 0;
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virtual bool decompress( std::istream&, std::string& ) = 0;
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protected:
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std::string _name;
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};
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struct FinishedObjectReadCallback : public osg::Referenced
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{
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virtual void objectRead(osgDB::InputStream& is, osg::Object& obj) = 0;
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};
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class OSGDB_EXPORT ObjectWrapper : public osg::Referenced
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{
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public:
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typedef std::vector< BaseSerializer::Type > TypeList;
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typedef std::vector< osg::ref_ptr<BaseSerializer> > SerializerList;
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typedef std::vector< osg::ref_ptr<FinishedObjectReadCallback> > FinishedObjectReadCallbackList;
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typedef osg::Object* CreateInstanceFunc();
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ObjectWrapper( CreateInstanceFunc* createInstanceFunc, const std::string& name,
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const std::string& associates );
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ObjectWrapper( CreateInstanceFunc* createInstanceFunc, const std::string& domain, const std::string& name,
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const std::string& associates );
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void setUpdatedVersion( int ver ) { _version = ver; }
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int getUpdatedVersion() const { return _version; }
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osg::Object* createInstance() const { return _createInstanceFunc(); }
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const std::string& getDomain() const { return _domain; }
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const std::string& getName() const { return _name; }
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const StringList& getAssociates() const { return _associates; }
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SerializerList& getSerializerList() { return _serializers; }
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const SerializerList& getSerializerList() const { return _serializers; }
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TypeList& getTypeList() { return _typeList; }
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const TypeList& getTypeList() const { return _typeList; }
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void addSerializer( BaseSerializer* s, BaseSerializer::Type t=BaseSerializer::RW_UNDEFINED );
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void markSerializerAsRemoved( const std::string& name );
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BaseSerializer* getSerializer( const std::string& name );
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BaseSerializer* getSerializer( const std::string& name, BaseSerializer::Type& type);
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void addFinishedObjectReadCallback ( FinishedObjectReadCallback* forc) { _finishedObjectReadCallbacks.push_back(forc); }
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bool read( InputStream&, osg::Object& );
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bool write( OutputStream&, const osg::Object& );
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bool readSchema( const StringList& properties, const TypeList& types );
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void writeSchema( StringList& properties, TypeList& types );
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void resetSchema() { if ( _backupSerializers.size()>0 ) _serializers = _backupSerializers; }
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void addMethodObject(const std::string& methodName, MethodObject* mo);
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typedef std::multimap< std::string, osg::ref_ptr<MethodObject> > MethodObjectMap;
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MethodObjectMap& getMethodObjectMap() { return _methodObjectMap; }
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const MethodObjectMap& getMethodObjectMap() const { return _methodObjectMap; }
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protected:
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ObjectWrapper() : _version(0) {}
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virtual ~ObjectWrapper() {}
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CreateInstanceFunc* _createInstanceFunc;
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std::string _domain;
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std::string _name;
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StringList _associates;
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SerializerList _serializers;
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SerializerList _backupSerializers;
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TypeList _typeList;
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FinishedObjectReadCallbackList _finishedObjectReadCallbacks;
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MethodObjectMap _methodObjectMap;
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int _version; // Last updated version of the wrapper
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};
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struct UpdateWrapperVersionProxy
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{
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UpdateWrapperVersionProxy( ObjectWrapper* w, int v ): _wrapper(w)
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{
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_lastVersion = w->getUpdatedVersion();
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w->setUpdatedVersion(v);
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}
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~UpdateWrapperVersionProxy()
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{
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_wrapper->setUpdatedVersion(_lastVersion);
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}
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ObjectWrapper* _wrapper;
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int _lastVersion;
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};
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class Registry;
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class OSGDB_EXPORT ObjectWrapperManager : public osg::Referenced
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{
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public:
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// Wrapper handlers
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void addWrapper( ObjectWrapper* wrapper );
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void removeWrapper( ObjectWrapper* wrapper );
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ObjectWrapper* findWrapper( const std::string& name );
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typedef std::map< std::string, osg::ref_ptr<ObjectWrapper> > WrapperMap;
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WrapperMap& getWrapperMap() { return _wrappers; }
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const WrapperMap& getWrapperMap() const { return _wrappers; }
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// Compressor handlers
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void addCompressor( BaseCompressor* compressor );
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void removeCompressor( BaseCompressor* compressor );
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BaseCompressor* findCompressor( const std::string& name );
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typedef std::map< std::string, osg::ref_ptr<BaseCompressor> > CompressorMap;
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CompressorMap& getCompressorMap() { return _compressors; }
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const CompressorMap& getCompressorMap() const { return _compressors; }
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typedef std::map<std::string, IntLookup> IntLookupMap;
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IntLookup::Value getValue( const std::string& group, const std::string& str ) { return findLookup(group).getValue(str.c_str()); }
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const std::string& getString( const std::string& group, IntLookup::Value value ) { return findLookup(group).getString(value); }
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IntLookupMap& getLookupMap() { return _globalMap; }
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const IntLookupMap& getLookupMap() const { return _globalMap; }
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protected:
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friend class osgDB::Registry;
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ObjectWrapperManager();
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virtual ~ObjectWrapperManager();
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WrapperMap _wrappers;
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CompressorMap _compressors;
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IntLookup& findLookup( const std::string& group )
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{
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IntLookupMap::iterator itr = _globalMap.find(group);
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if ( itr!=_globalMap.end() ) return itr->second;
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else return _globalMap["GL"];
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}
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IntLookupMap _globalMap;
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};
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class OSGDB_EXPORT RegisterWrapperProxy
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{
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public:
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typedef void (*AddPropFunc)( ObjectWrapper* );
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RegisterWrapperProxy( ObjectWrapper::CreateInstanceFunc *createInstanceFunc, const std::string& name,
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const std::string& associates, AddPropFunc func );
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virtual ~RegisterWrapperProxy();
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protected:
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osg::ref_ptr<ObjectWrapper> _wrapper;
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};
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class OSGDB_EXPORT RegisterCustomWrapperProxy
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{
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public:
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typedef void (*AddPropFunc)( const char*, ObjectWrapper* );
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RegisterCustomWrapperProxy( ObjectWrapper::CreateInstanceFunc *createInstanceFunc, const std::string& domain, const std::string& name,
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const std::string& associates, AddPropFunc func );
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virtual ~RegisterCustomWrapperProxy();
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protected:
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osg::ref_ptr<ObjectWrapper> _wrapper;
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};
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#define REGISTER_OBJECT_WRAPPER(NAME, CREATEINSTANCE, CLASS, ASSOCIATES) \
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extern "C" void wrapper_serializer_##NAME(void) {} \
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extern void wrapper_propfunc_##NAME(osgDB::ObjectWrapper*); \
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static osg::Object* wrapper_createinstancefunc##NAME() { return CREATEINSTANCE; } \
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static osgDB::RegisterWrapperProxy wrapper_proxy_##NAME( \
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wrapper_createinstancefunc##NAME, #CLASS, ASSOCIATES, &wrapper_propfunc_##NAME); \
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typedef CLASS MyClass; \
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void wrapper_propfunc_##NAME(osgDB::ObjectWrapper* wrapper)
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#define REGISTER_OBJECT_WRAPPER2(NAME, CREATEINSTANCE, CLASS, CLASSNAME, ASSOCIATES) \
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extern "C" void wrapper_serializer_##NAME(void) {} \
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extern void wrapper_propfunc_##NAME(osgDB::ObjectWrapper*); \
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static osg::Object* wrapper_createinstancefunc##NAME() { return CREATEINSTANCE; } \
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static osgDB::RegisterWrapperProxy wrapper_proxy_##NAME( \
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wrapper_createinstancefunc##NAME, CLASSNAME, ASSOCIATES, &wrapper_propfunc_##NAME); \
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typedef CLASS MyClass; \
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void wrapper_propfunc_##NAME(osgDB::ObjectWrapper* wrapper)
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#define REGISTER_CUSTOM_OBJECT_WRAPPER(DOMAIN, NAME, CREATEINSTANCE, CLASS, ASSOCIATES) \
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extern "C" void wrapper_serializer_##NAME(void) {} \
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extern void wrapper_propfunc_##NAME(const char*, osgDB::ObjectWrapper*); \
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static osg::Object* wrapper_createinstancefunc##NAME() { return CREATEINSTANCE; } \
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static osgDB::RegisterCustomWrapperProxy wrapper_proxy_##NAME( \
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wrapper_createinstancefunc##NAME, #DOMAIN, #CLASS, ASSOCIATES, &wrapper_propfunc_##NAME); \
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typedef CLASS MyClass; \
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void wrapper_propfunc_##NAME(const char* domain, osgDB::ObjectWrapper* wrapper)
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#define REGISTER_CUSTOM_OBJECT_WRAPPER2(DOMAIN, NAME, CREATEINSTANCE, CLASS, CLASSNAME, ASSOCIATES) \
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extern "C" void wrapper_serializer_##NAME(void) {} \
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extern void wrapper_propfunc_##NAME(const char*, osgDB::ObjectWrapper*); \
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static osg::Object* wrapper_createinstancefunc##NAME() { return CREATEINSTANCE; } \
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static osgDB::RegisterCustomWrapperProxy wrapper_proxy_##NAME( \
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wrapper_createinstancefunc##NAME, #DOMAIN, CLASSNAME, ASSOCIATES, &wrapper_propfunc_##NAME); \
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typedef CLASS MyClass; \
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void wrapper_propfunc_##NAME(const char* domain, osgDB::ObjectWrapper* wrapper)
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class OSGDB_EXPORT RegisterCompressorProxy
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{
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public:
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RegisterCompressorProxy( const std::string& name, BaseCompressor* compressor );
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~RegisterCompressorProxy();
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protected:
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osg::ref_ptr<BaseCompressor> _compressor;
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};
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#define REGISTER_COMPRESSOR(NAME, CLASS) \
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extern "C" void wrapper_compressor_##CLASS(void) {} \
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static osgDB::RegisterCompressorProxy compressor_proxy_##CLASS(NAME, new CLASS);
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}
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#endif
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