Commit Graph

10 Commits

Author SHA1 Message Date
Robert Osfield
b7cccf6258 Refactored the versioning of serializers so it now uses a _firstVersion and _lastVersion make it possible
to specify what range of versions support each serializer.
2010-11-09 13:23:43 +00:00
Robert Osfield
b8a94a6d4e 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 12:41:55 +00:00
Robert Osfield
f1b660997b Added FinishedObjectReadCallback to ObjectWrapper which allows
wrappers to register their own handling of post processing of objects once they have been read.
2010-10-28 14:04:07 +00:00
Robert Osfield
488eac94f7 From Wang Rui, "Attached is the osgAnimation wrappers for serialize IO operations. A
few headers and the osgAnimation sources are also modified to make
everything goes well, including:

A new REGISTER_OBJECT_WRAPPER2 macro to wrap classes like
Skeleton::UpdateSkeleton.
A bug fix in the Seralizer header which avoids setting default values
to objects.
Naming style fixes in osgAnimation headers and sources, also in the
deprecated dotosg wrappers.
A bug fix for the XML support, to write char values correctly.
A small change in the osg::Geometry wrapper to ignore the
InternalGeometry property, which is used by the MorphGeometry and
should not be set by user applications.

The avatar.osg, nathan.osg and robot.osg data files all work fine with
serializers, with some 'unsupported wrapper' warnings when converting.
I'm thinking of removing these warnings by disabling related property
serializers (ComputeBoundingBoxCallback and Drawable::UpdateCallback),
which are seldom recorded by users.

By the way, I still wonder how would we handle the C4121 problem,
discussed some days before. The /Zp compile option is set to 16 in the
attached cmake script file. And is there a better solution now?"
2010-04-19 10:35:18 +00:00
Robert Osfield
7103707815 From Wang Rui, "I also did a small fix to the ObjectWrapper header, to add a
OSGDB_EXPORT macro to RegisterCompressorProxy, and modified the
findCompressor() method to look for custom compressors in libraries
such like osgdb_compressor_name.so, which was described in the wiki
page chapter 2.4."
2010-02-04 10:20:17 +00:00
Robert Osfield
a520e8b6bd From Wang Rui, refactored the InputStream/OutputStream operations so that the binar/ascii foramts are implemented via subclasses. 2010-01-25 11:03:21 +00:00
Robert Osfield
7ab759c97f Renamed ObjectRegistry to ObjectWrapperManager, and replaced it's instance() method usage with assigning a ObjectWrapperManager
to the osgDB::Registry.  Added a osgDB::Registry::getObjectWrapperManager() for access of this object wrapper manager.  This
change centralises the singleton management in osgDB.

Merged the osgDB::GlobalLookUpTable functionality into ObjectWrapperManger to keep down the number of singletons in use.
2010-01-22 15:16:22 +00:00
Robert Osfield
8839736818 Added extra export for windows build 2010-01-21 16:26:48 +00:00
Robert Osfield
f1bd2eaf04 From Wang Rui, added exports for windows build 2010-01-21 09:25:45 +00:00
Robert Osfield
219696f1ee From Wang Rui, new native binary/ascii format infrastructure and wrappers.
From Robert Osfield, refactor of Wang Rui's original osg2 into 3 parts - parts placed into osgDB, the ReaderWriter placed into src/osg/Plugin/osg and wrappers into src/osgWrappers/serializers/osg
2010-01-20 20:13:33 +00:00