OpenSceneGraph/include/osgDB/ObjectWrapper

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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2010 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*/
// Written by Wang Rui, (C) 2010
#ifndef OSGDB_OBJECTWRAPPER
#define OSGDB_OBJECTWRAPPER
#include <osgDB/Serializer>
namespace osgDB
{
typedef std::vector<std::string> StringList;
extern OSGDB_EXPORT void split( const std::string& src, StringList& list, char separator=' ' );
class OSGDB_EXPORT BaseCompressor : public osg::Referenced
{
public:
BaseCompressor() {}
void setName( const std::string& name ) { _name = name; }
const std::string& getName() const { return _name; }
virtual bool compress( std::ostream&, const std::string& ) = 0;
virtual bool decompress( std::istream&, std::string& ) = 0;
protected:
std::string _name;
};
struct FinishedObjectReadCallback : public osg::Referenced
{
virtual void objectRead(osgDB::InputStream& is, osg::Object& obj) = 0;
};
class OSGDB_EXPORT ObjectWrapper : public osg::Referenced
{
public:
typedef std::vector< osg::ref_ptr<BaseSerializer> > SerializerList;
typedef std::vector< osg::ref_ptr<FinishedObjectReadCallback> > FinishedObjectReadCallbackList;
ObjectWrapper( osg::Object* proto, const std::string& name,
const std::string& associates );
From Wang Rui, "I'd like to submit my latest modification of the serialization IO functionalities. It includes two main parts: a version checking macro for handling backward-compatiblity since 3.0, and enhencement of current schema mechanism. I also change the option handling process to use getPluginStringData(), and add new USE_SERIALIZER_WRAPPER macro in the Registry header to allow for static-link usage as well. The enhencement of schema machanism just tells the type of each serializer while outputting them, such as: osg::Group = Children:1 The meaning of the number can be found in the osgDB/Serializer header, BaseSerializer::Type enum. It may help 3rdparty utilities understand the structure of the wrapper and do some reflection work in the future. The new macro UPDATE_TO_VERSION can help indicate the InputStream (no affect on the writer) that a serializer is added/removed since certain OSG version. An example wrapper file is also attached. The Geode_modified.cpp is based on the serializers/osg/Geode.cpp file (hey, don't merge it :-), but assumes that a new user serializer 'Test' is added since version 65 (that is, the OSG_SOVERSION): REGISTER_OBJECT_WRAPPER( Geode, ... ) { ADD_USER_SERIALIZER( Drawables ); // origin ones UPDATE_TO_VERSION( 65 ) { ADD_USER_SERIALIZER( Test ); // a serializer added from version 65 } } All kinds of ADD_... macros following UPDATE_TO_VERSION will automatically apply the updated version. The braces here are only for typesetting! While reading an osgt/osgb/osgx file, OSG will now check if the file version (recorded as the writer's soversion, instead of previous meaningless "#Version 2") is equal or greater than Test's version, and try reading it, or just ignore it if file version is lesser. And we also have the REMOVE_SERIALIZER macro will mark a named serializer as removed in some version, with which all files generated by further versions will just ignore it: UPDATE_TO_VERSION( 70 ) { REMOVE_SERIALIZER( Test ); } This means that from version 70, the serializer Test is removed (but not actually erased from the list) and should not be read anymore. If the read file version is less than 70 (and equal or greater than 65), Test will still be handled when reading; otherwise it will be ignored to keep compatiblity on different OSG versions. "
2010-11-09 20:41:55 +08:00
void setUpdatedVersion( int ver ) { _version = ver; }
int getUpdatedVersion() const { return _version; }
const osg::Object* getProto() const { return _proto.get(); }
const std::string& getName() const { return _name; }
const StringList& getAssociates() const { return _associates; }
From Wang Rui, "I'd like to submit my latest modification of the serialization IO functionalities. It includes two main parts: a version checking macro for handling backward-compatiblity since 3.0, and enhencement of current schema mechanism. I also change the option handling process to use getPluginStringData(), and add new USE_SERIALIZER_WRAPPER macro in the Registry header to allow for static-link usage as well. The enhencement of schema machanism just tells the type of each serializer while outputting them, such as: osg::Group = Children:1 The meaning of the number can be found in the osgDB/Serializer header, BaseSerializer::Type enum. It may help 3rdparty utilities understand the structure of the wrapper and do some reflection work in the future. The new macro UPDATE_TO_VERSION can help indicate the InputStream (no affect on the writer) that a serializer is added/removed since certain OSG version. An example wrapper file is also attached. The Geode_modified.cpp is based on the serializers/osg/Geode.cpp file (hey, don't merge it :-), but assumes that a new user serializer 'Test' is added since version 65 (that is, the OSG_SOVERSION): REGISTER_OBJECT_WRAPPER( Geode, ... ) { ADD_USER_SERIALIZER( Drawables ); // origin ones UPDATE_TO_VERSION( 65 ) { ADD_USER_SERIALIZER( Test ); // a serializer added from version 65 } } All kinds of ADD_... macros following UPDATE_TO_VERSION will automatically apply the updated version. The braces here are only for typesetting! While reading an osgt/osgb/osgx file, OSG will now check if the file version (recorded as the writer's soversion, instead of previous meaningless "#Version 2") is equal or greater than Test's version, and try reading it, or just ignore it if file version is lesser. And we also have the REMOVE_SERIALIZER macro will mark a named serializer as removed in some version, with which all files generated by further versions will just ignore it: UPDATE_TO_VERSION( 70 ) { REMOVE_SERIALIZER( Test ); } This means that from version 70, the serializer Test is removed (but not actually erased from the list) and should not be read anymore. If the read file version is less than 70 (and equal or greater than 65), Test will still be handled when reading; otherwise it will be ignored to keep compatiblity on different OSG versions. "
2010-11-09 20:41:55 +08:00
void addSerializer( BaseSerializer* s, BaseSerializer::Type t=BaseSerializer::RW_UNDEFINED );
From Wang Rui, "I'd like to submit my latest modification of the serialization IO functionalities. It includes two main parts: a version checking macro for handling backward-compatiblity since 3.0, and enhencement of current schema mechanism. I also change the option handling process to use getPluginStringData(), and add new USE_SERIALIZER_WRAPPER macro in the Registry header to allow for static-link usage as well. The enhencement of schema machanism just tells the type of each serializer while outputting them, such as: osg::Group = Children:1 The meaning of the number can be found in the osgDB/Serializer header, BaseSerializer::Type enum. It may help 3rdparty utilities understand the structure of the wrapper and do some reflection work in the future. The new macro UPDATE_TO_VERSION can help indicate the InputStream (no affect on the writer) that a serializer is added/removed since certain OSG version. An example wrapper file is also attached. The Geode_modified.cpp is based on the serializers/osg/Geode.cpp file (hey, don't merge it :-), but assumes that a new user serializer 'Test' is added since version 65 (that is, the OSG_SOVERSION): REGISTER_OBJECT_WRAPPER( Geode, ... ) { ADD_USER_SERIALIZER( Drawables ); // origin ones UPDATE_TO_VERSION( 65 ) { ADD_USER_SERIALIZER( Test ); // a serializer added from version 65 } } All kinds of ADD_... macros following UPDATE_TO_VERSION will automatically apply the updated version. The braces here are only for typesetting! While reading an osgt/osgb/osgx file, OSG will now check if the file version (recorded as the writer's soversion, instead of previous meaningless "#Version 2") is equal or greater than Test's version, and try reading it, or just ignore it if file version is lesser. And we also have the REMOVE_SERIALIZER macro will mark a named serializer as removed in some version, with which all files generated by further versions will just ignore it: UPDATE_TO_VERSION( 70 ) { REMOVE_SERIALIZER( Test ); } This means that from version 70, the serializer Test is removed (but not actually erased from the list) and should not be read anymore. If the read file version is less than 70 (and equal or greater than 65), Test will still be handled when reading; otherwise it will be ignored to keep compatiblity on different OSG versions. "
2010-11-09 20:41:55 +08:00
void markSerializerAsRemoved( const std::string& name );
BaseSerializer* getSerializer( const std::string& name );
void addFinishedObjectReadCallback ( FinishedObjectReadCallback* forc) { _finishedObjectReadCallbacks.push_back(forc); }
bool read( InputStream&, osg::Object& );
bool write( OutputStream&, const osg::Object& );
From Wang Rui, "I'd like to submit my latest modification of the serialization IO functionalities. It includes two main parts: a version checking macro for handling backward-compatiblity since 3.0, and enhencement of current schema mechanism. I also change the option handling process to use getPluginStringData(), and add new USE_SERIALIZER_WRAPPER macro in the Registry header to allow for static-link usage as well. The enhencement of schema machanism just tells the type of each serializer while outputting them, such as: osg::Group = Children:1 The meaning of the number can be found in the osgDB/Serializer header, BaseSerializer::Type enum. It may help 3rdparty utilities understand the structure of the wrapper and do some reflection work in the future. The new macro UPDATE_TO_VERSION can help indicate the InputStream (no affect on the writer) that a serializer is added/removed since certain OSG version. An example wrapper file is also attached. The Geode_modified.cpp is based on the serializers/osg/Geode.cpp file (hey, don't merge it :-), but assumes that a new user serializer 'Test' is added since version 65 (that is, the OSG_SOVERSION): REGISTER_OBJECT_WRAPPER( Geode, ... ) { ADD_USER_SERIALIZER( Drawables ); // origin ones UPDATE_TO_VERSION( 65 ) { ADD_USER_SERIALIZER( Test ); // a serializer added from version 65 } } All kinds of ADD_... macros following UPDATE_TO_VERSION will automatically apply the updated version. The braces here are only for typesetting! While reading an osgt/osgb/osgx file, OSG will now check if the file version (recorded as the writer's soversion, instead of previous meaningless "#Version 2") is equal or greater than Test's version, and try reading it, or just ignore it if file version is lesser. And we also have the REMOVE_SERIALIZER macro will mark a named serializer as removed in some version, with which all files generated by further versions will just ignore it: UPDATE_TO_VERSION( 70 ) { REMOVE_SERIALIZER( Test ); } This means that from version 70, the serializer Test is removed (but not actually erased from the list) and should not be read anymore. If the read file version is less than 70 (and equal or greater than 65), Test will still be handled when reading; otherwise it will be ignored to keep compatiblity on different OSG versions. "
2010-11-09 20:41:55 +08:00
bool readSchema( const StringList& properties, const std::vector<int>& types );
void writeSchema( StringList& properties, std::vector<int>& types );
void resetSchema()
{ if ( _backupSerializers.size()>0 ) _serializers = _backupSerializers; }
protected:
From Wang Rui, "I'd like to submit my latest modification of the serialization IO functionalities. It includes two main parts: a version checking macro for handling backward-compatiblity since 3.0, and enhencement of current schema mechanism. I also change the option handling process to use getPluginStringData(), and add new USE_SERIALIZER_WRAPPER macro in the Registry header to allow for static-link usage as well. The enhencement of schema machanism just tells the type of each serializer while outputting them, such as: osg::Group = Children:1 The meaning of the number can be found in the osgDB/Serializer header, BaseSerializer::Type enum. It may help 3rdparty utilities understand the structure of the wrapper and do some reflection work in the future. The new macro UPDATE_TO_VERSION can help indicate the InputStream (no affect on the writer) that a serializer is added/removed since certain OSG version. An example wrapper file is also attached. The Geode_modified.cpp is based on the serializers/osg/Geode.cpp file (hey, don't merge it :-), but assumes that a new user serializer 'Test' is added since version 65 (that is, the OSG_SOVERSION): REGISTER_OBJECT_WRAPPER( Geode, ... ) { ADD_USER_SERIALIZER( Drawables ); // origin ones UPDATE_TO_VERSION( 65 ) { ADD_USER_SERIALIZER( Test ); // a serializer added from version 65 } } All kinds of ADD_... macros following UPDATE_TO_VERSION will automatically apply the updated version. The braces here are only for typesetting! While reading an osgt/osgb/osgx file, OSG will now check if the file version (recorded as the writer's soversion, instead of previous meaningless "#Version 2") is equal or greater than Test's version, and try reading it, or just ignore it if file version is lesser. And we also have the REMOVE_SERIALIZER macro will mark a named serializer as removed in some version, with which all files generated by further versions will just ignore it: UPDATE_TO_VERSION( 70 ) { REMOVE_SERIALIZER( Test ); } This means that from version 70, the serializer Test is removed (but not actually erased from the list) and should not be read anymore. If the read file version is less than 70 (and equal or greater than 65), Test will still be handled when reading; otherwise it will be ignored to keep compatiblity on different OSG versions. "
2010-11-09 20:41:55 +08:00
ObjectWrapper() : _version(0) {}
virtual ~ObjectWrapper() {}
From Wang Rui, "I'd like to submit my latest modification of the serialization IO functionalities. It includes two main parts: a version checking macro for handling backward-compatiblity since 3.0, and enhencement of current schema mechanism. I also change the option handling process to use getPluginStringData(), and add new USE_SERIALIZER_WRAPPER macro in the Registry header to allow for static-link usage as well. The enhencement of schema machanism just tells the type of each serializer while outputting them, such as: osg::Group = Children:1 The meaning of the number can be found in the osgDB/Serializer header, BaseSerializer::Type enum. It may help 3rdparty utilities understand the structure of the wrapper and do some reflection work in the future. The new macro UPDATE_TO_VERSION can help indicate the InputStream (no affect on the writer) that a serializer is added/removed since certain OSG version. An example wrapper file is also attached. The Geode_modified.cpp is based on the serializers/osg/Geode.cpp file (hey, don't merge it :-), but assumes that a new user serializer 'Test' is added since version 65 (that is, the OSG_SOVERSION): REGISTER_OBJECT_WRAPPER( Geode, ... ) { ADD_USER_SERIALIZER( Drawables ); // origin ones UPDATE_TO_VERSION( 65 ) { ADD_USER_SERIALIZER( Test ); // a serializer added from version 65 } } All kinds of ADD_... macros following UPDATE_TO_VERSION will automatically apply the updated version. The braces here are only for typesetting! While reading an osgt/osgb/osgx file, OSG will now check if the file version (recorded as the writer's soversion, instead of previous meaningless "#Version 2") is equal or greater than Test's version, and try reading it, or just ignore it if file version is lesser. And we also have the REMOVE_SERIALIZER macro will mark a named serializer as removed in some version, with which all files generated by further versions will just ignore it: UPDATE_TO_VERSION( 70 ) { REMOVE_SERIALIZER( Test ); } This means that from version 70, the serializer Test is removed (but not actually erased from the list) and should not be read anymore. If the read file version is less than 70 (and equal or greater than 65), Test will still be handled when reading; otherwise it will be ignored to keep compatiblity on different OSG versions. "
2010-11-09 20:41:55 +08:00
osg::ref_ptr<osg::Object> _proto;
std::string _name;
StringList _associates;
SerializerList _serializers;
SerializerList _backupSerializers;
From Wang Rui, "I'd like to submit my latest modification of the serialization IO functionalities. It includes two main parts: a version checking macro for handling backward-compatiblity since 3.0, and enhencement of current schema mechanism. I also change the option handling process to use getPluginStringData(), and add new USE_SERIALIZER_WRAPPER macro in the Registry header to allow for static-link usage as well. The enhencement of schema machanism just tells the type of each serializer while outputting them, such as: osg::Group = Children:1 The meaning of the number can be found in the osgDB/Serializer header, BaseSerializer::Type enum. It may help 3rdparty utilities understand the structure of the wrapper and do some reflection work in the future. The new macro UPDATE_TO_VERSION can help indicate the InputStream (no affect on the writer) that a serializer is added/removed since certain OSG version. An example wrapper file is also attached. The Geode_modified.cpp is based on the serializers/osg/Geode.cpp file (hey, don't merge it :-), but assumes that a new user serializer 'Test' is added since version 65 (that is, the OSG_SOVERSION): REGISTER_OBJECT_WRAPPER( Geode, ... ) { ADD_USER_SERIALIZER( Drawables ); // origin ones UPDATE_TO_VERSION( 65 ) { ADD_USER_SERIALIZER( Test ); // a serializer added from version 65 } } All kinds of ADD_... macros following UPDATE_TO_VERSION will automatically apply the updated version. The braces here are only for typesetting! While reading an osgt/osgb/osgx file, OSG will now check if the file version (recorded as the writer's soversion, instead of previous meaningless "#Version 2") is equal or greater than Test's version, and try reading it, or just ignore it if file version is lesser. And we also have the REMOVE_SERIALIZER macro will mark a named serializer as removed in some version, with which all files generated by further versions will just ignore it: UPDATE_TO_VERSION( 70 ) { REMOVE_SERIALIZER( Test ); } This means that from version 70, the serializer Test is removed (but not actually erased from the list) and should not be read anymore. If the read file version is less than 70 (and equal or greater than 65), Test will still be handled when reading; otherwise it will be ignored to keep compatiblity on different OSG versions. "
2010-11-09 20:41:55 +08:00
std::vector<int> _typeList;
FinishedObjectReadCallbackList _finishedObjectReadCallbacks;
From Wang Rui, "I'd like to submit my latest modification of the serialization IO functionalities. It includes two main parts: a version checking macro for handling backward-compatiblity since 3.0, and enhencement of current schema mechanism. I also change the option handling process to use getPluginStringData(), and add new USE_SERIALIZER_WRAPPER macro in the Registry header to allow for static-link usage as well. The enhencement of schema machanism just tells the type of each serializer while outputting them, such as: osg::Group = Children:1 The meaning of the number can be found in the osgDB/Serializer header, BaseSerializer::Type enum. It may help 3rdparty utilities understand the structure of the wrapper and do some reflection work in the future. The new macro UPDATE_TO_VERSION can help indicate the InputStream (no affect on the writer) that a serializer is added/removed since certain OSG version. An example wrapper file is also attached. The Geode_modified.cpp is based on the serializers/osg/Geode.cpp file (hey, don't merge it :-), but assumes that a new user serializer 'Test' is added since version 65 (that is, the OSG_SOVERSION): REGISTER_OBJECT_WRAPPER( Geode, ... ) { ADD_USER_SERIALIZER( Drawables ); // origin ones UPDATE_TO_VERSION( 65 ) { ADD_USER_SERIALIZER( Test ); // a serializer added from version 65 } } All kinds of ADD_... macros following UPDATE_TO_VERSION will automatically apply the updated version. The braces here are only for typesetting! While reading an osgt/osgb/osgx file, OSG will now check if the file version (recorded as the writer's soversion, instead of previous meaningless "#Version 2") is equal or greater than Test's version, and try reading it, or just ignore it if file version is lesser. And we also have the REMOVE_SERIALIZER macro will mark a named serializer as removed in some version, with which all files generated by further versions will just ignore it: UPDATE_TO_VERSION( 70 ) { REMOVE_SERIALIZER( Test ); } This means that from version 70, the serializer Test is removed (but not actually erased from the list) and should not be read anymore. If the read file version is less than 70 (and equal or greater than 65), Test will still be handled when reading; otherwise it will be ignored to keep compatiblity on different OSG versions. "
2010-11-09 20:41:55 +08:00
int _version; // Last updated version of the wrapper
};
struct UpdateWrapperVersionProxy
{
UpdateWrapperVersionProxy( ObjectWrapper* w, int v ): _wrapper(w)
{
_lastVersion = w->getUpdatedVersion();
w->setUpdatedVersion(v);
}
~UpdateWrapperVersionProxy()
{
_wrapper->setUpdatedVersion(_lastVersion);
}
ObjectWrapper* _wrapper;
int _lastVersion;
};
class Registry;
class OSGDB_EXPORT ObjectWrapperManager : public osg::Referenced
{
public:
// Wrapper handlers
void addWrapper( ObjectWrapper* wrapper );
void removeWrapper( ObjectWrapper* wrapper );
ObjectWrapper* findWrapper( const std::string& name );
typedef std::map< std::string, osg::ref_ptr<ObjectWrapper> > WrapperMap;
WrapperMap& getWrapperMap() { return _wrappers; }
const WrapperMap& getWrapperMap() const { return _wrappers; }
// Compressor handlers
void addCompressor( BaseCompressor* compressor );
void removeCompressor( BaseCompressor* compressor );
BaseCompressor* findCompressor( const std::string& name );
typedef std::map< std::string, osg::ref_ptr<BaseCompressor> > CompressorMap;
CompressorMap& getCompressorMap() { return _compressors; }
const CompressorMap& getCompressorMap() const { return _compressors; }
typedef std::map<std::string, IntLookup> IntLookupMap;
IntLookup::Value getValue( const std::string& group, const std::string& str ) { return findLookup(group).getValue(str.c_str()); }
const std::string& getString( const std::string& group, IntLookup::Value value ) { return findLookup(group).getString(value); }
protected:
friend class osgDB::Registry;
ObjectWrapperManager();
virtual ~ObjectWrapperManager();
WrapperMap _wrappers;
CompressorMap _compressors;
IntLookup& findLookup( const std::string& group )
{
IntLookupMap::iterator itr = _globalMap.find(group);
if ( itr!=_globalMap.end() ) return itr->second;
else return _globalMap["GL"];
}
IntLookupMap _globalMap;
};
2010-01-22 00:26:48 +08:00
class OSGDB_EXPORT RegisterWrapperProxy
{
public:
typedef void (*AddPropFunc)( ObjectWrapper* );
RegisterWrapperProxy( osg::Object* proto, const std::string& name,
const std::string& associates, AddPropFunc func );
virtual ~RegisterWrapperProxy();
protected:
osg::ref_ptr<ObjectWrapper> _wrapper;
};
#define REGISTER_OBJECT_WRAPPER(NAME, PROTO, CLASS, ASSOCIATES) \
From Wang Rui, "I'd like to submit my latest modification of the serialization IO functionalities. It includes two main parts: a version checking macro for handling backward-compatiblity since 3.0, and enhencement of current schema mechanism. I also change the option handling process to use getPluginStringData(), and add new USE_SERIALIZER_WRAPPER macro in the Registry header to allow for static-link usage as well. The enhencement of schema machanism just tells the type of each serializer while outputting them, such as: osg::Group = Children:1 The meaning of the number can be found in the osgDB/Serializer header, BaseSerializer::Type enum. It may help 3rdparty utilities understand the structure of the wrapper and do some reflection work in the future. The new macro UPDATE_TO_VERSION can help indicate the InputStream (no affect on the writer) that a serializer is added/removed since certain OSG version. An example wrapper file is also attached. The Geode_modified.cpp is based on the serializers/osg/Geode.cpp file (hey, don't merge it :-), but assumes that a new user serializer 'Test' is added since version 65 (that is, the OSG_SOVERSION): REGISTER_OBJECT_WRAPPER( Geode, ... ) { ADD_USER_SERIALIZER( Drawables ); // origin ones UPDATE_TO_VERSION( 65 ) { ADD_USER_SERIALIZER( Test ); // a serializer added from version 65 } } All kinds of ADD_... macros following UPDATE_TO_VERSION will automatically apply the updated version. The braces here are only for typesetting! While reading an osgt/osgb/osgx file, OSG will now check if the file version (recorded as the writer's soversion, instead of previous meaningless "#Version 2") is equal or greater than Test's version, and try reading it, or just ignore it if file version is lesser. And we also have the REMOVE_SERIALIZER macro will mark a named serializer as removed in some version, with which all files generated by further versions will just ignore it: UPDATE_TO_VERSION( 70 ) { REMOVE_SERIALIZER( Test ); } This means that from version 70, the serializer Test is removed (but not actually erased from the list) and should not be read anymore. If the read file version is less than 70 (and equal or greater than 65), Test will still be handled when reading; otherwise it will be ignored to keep compatiblity on different OSG versions. "
2010-11-09 20:41:55 +08:00
extern "C" void wrapper_serializer_##NAME(void) {} \
extern void wrapper_propfunc_##NAME(osgDB::ObjectWrapper*); \
static osgDB::RegisterWrapperProxy wrapper_proxy_##NAME( \
PROTO, #CLASS, ASSOCIATES, &wrapper_propfunc_##NAME); \
typedef CLASS MyClass; \
void wrapper_propfunc_##NAME(osgDB::ObjectWrapper* wrapper)
#define REGISTER_OBJECT_WRAPPER2(NAME, PROTO, CLASS, CLASSNAME, ASSOCIATES) \
From Wang Rui, "I'd like to submit my latest modification of the serialization IO functionalities. It includes two main parts: a version checking macro for handling backward-compatiblity since 3.0, and enhencement of current schema mechanism. I also change the option handling process to use getPluginStringData(), and add new USE_SERIALIZER_WRAPPER macro in the Registry header to allow for static-link usage as well. The enhencement of schema machanism just tells the type of each serializer while outputting them, such as: osg::Group = Children:1 The meaning of the number can be found in the osgDB/Serializer header, BaseSerializer::Type enum. It may help 3rdparty utilities understand the structure of the wrapper and do some reflection work in the future. The new macro UPDATE_TO_VERSION can help indicate the InputStream (no affect on the writer) that a serializer is added/removed since certain OSG version. An example wrapper file is also attached. The Geode_modified.cpp is based on the serializers/osg/Geode.cpp file (hey, don't merge it :-), but assumes that a new user serializer 'Test' is added since version 65 (that is, the OSG_SOVERSION): REGISTER_OBJECT_WRAPPER( Geode, ... ) { ADD_USER_SERIALIZER( Drawables ); // origin ones UPDATE_TO_VERSION( 65 ) { ADD_USER_SERIALIZER( Test ); // a serializer added from version 65 } } All kinds of ADD_... macros following UPDATE_TO_VERSION will automatically apply the updated version. The braces here are only for typesetting! While reading an osgt/osgb/osgx file, OSG will now check if the file version (recorded as the writer's soversion, instead of previous meaningless "#Version 2") is equal or greater than Test's version, and try reading it, or just ignore it if file version is lesser. And we also have the REMOVE_SERIALIZER macro will mark a named serializer as removed in some version, with which all files generated by further versions will just ignore it: UPDATE_TO_VERSION( 70 ) { REMOVE_SERIALIZER( Test ); } This means that from version 70, the serializer Test is removed (but not actually erased from the list) and should not be read anymore. If the read file version is less than 70 (and equal or greater than 65), Test will still be handled when reading; otherwise it will be ignored to keep compatiblity on different OSG versions. "
2010-11-09 20:41:55 +08:00
extern "C" void wrapper_serializer_##NAME(void) {} \
extern void wrapper_propfunc_##NAME(osgDB::ObjectWrapper*); \
static osgDB::RegisterWrapperProxy wrapper_proxy_##NAME( \
PROTO, CLASSNAME, ASSOCIATES, &wrapper_propfunc_##NAME); \
typedef CLASS MyClass; \
void wrapper_propfunc_##NAME(osgDB::ObjectWrapper* wrapper)
class OSGDB_EXPORT RegisterCompressorProxy
{
public:
RegisterCompressorProxy( const std::string& name, BaseCompressor* compressor );
~RegisterCompressorProxy();
protected:
osg::ref_ptr<BaseCompressor> _compressor;
};
#define REGISTER_COMPRESSOR(NAME, CLASS) \
From Wang Rui, "I'd like to submit my latest modification of the serialization IO functionalities. It includes two main parts: a version checking macro for handling backward-compatiblity since 3.0, and enhencement of current schema mechanism. I also change the option handling process to use getPluginStringData(), and add new USE_SERIALIZER_WRAPPER macro in the Registry header to allow for static-link usage as well. The enhencement of schema machanism just tells the type of each serializer while outputting them, such as: osg::Group = Children:1 The meaning of the number can be found in the osgDB/Serializer header, BaseSerializer::Type enum. It may help 3rdparty utilities understand the structure of the wrapper and do some reflection work in the future. The new macro UPDATE_TO_VERSION can help indicate the InputStream (no affect on the writer) that a serializer is added/removed since certain OSG version. An example wrapper file is also attached. The Geode_modified.cpp is based on the serializers/osg/Geode.cpp file (hey, don't merge it :-), but assumes that a new user serializer 'Test' is added since version 65 (that is, the OSG_SOVERSION): REGISTER_OBJECT_WRAPPER( Geode, ... ) { ADD_USER_SERIALIZER( Drawables ); // origin ones UPDATE_TO_VERSION( 65 ) { ADD_USER_SERIALIZER( Test ); // a serializer added from version 65 } } All kinds of ADD_... macros following UPDATE_TO_VERSION will automatically apply the updated version. The braces here are only for typesetting! While reading an osgt/osgb/osgx file, OSG will now check if the file version (recorded as the writer's soversion, instead of previous meaningless "#Version 2") is equal or greater than Test's version, and try reading it, or just ignore it if file version is lesser. And we also have the REMOVE_SERIALIZER macro will mark a named serializer as removed in some version, with which all files generated by further versions will just ignore it: UPDATE_TO_VERSION( 70 ) { REMOVE_SERIALIZER( Test ); } This means that from version 70, the serializer Test is removed (but not actually erased from the list) and should not be read anymore. If the read file version is less than 70 (and equal or greater than 65), Test will still be handled when reading; otherwise it will be ignored to keep compatiblity on different OSG versions. "
2010-11-09 20:41:55 +08:00
extern "C" void wrapper_compressor_##CLASS(void) {} \
static osgDB::RegisterCompressorProxy compressor_proxy_##CLASS(NAME, new CLASS);
}
#endif