6a67be2e32
forcing users to use osgDB::readRef*File() methods. The later is preferable as it closes a potential threading bug when using paging databases in conjunction
with the osgDB::Registry Object Cache. This threading bug occurs when one thread gets an object from the Cache via an osgDB::read*File() call where only
a pointer to the object is passed back, so taking a reference to the object is delayed till it gets reassigned to a ref_ptr<>, but at the same time another
thread calls a flush of the Object Cache deleting this object as it's referenceCount is now zero. Using osgDB::readREf*File() makes sure the a ref_ptr<> is
passed back and the referenceCount never goes to zero.
To ensure the OSG builds when OSG_PROVIDE_READFILE is to OFF the many cases of osgDB::read*File() usage had to be replaced with a ref_ptr<> osgDB::readRef*File()
usage. The avoid this change causing lots of other client code to be rewritten to handle the use of ref_ptr<> in place of C pointer I introduced a serious of
templte methods in various class to adapt ref_ptr<> to the underly C pointer to be passed to old OSG API's, example of this is found in include/osg/Group:
bool addChild(Node* child); // old method which can only be used with a Node*
tempalte<class T> bool addChild(const osg::ref_ptr<T>& child) { return addChild(child.get()); } // adapter template method
These changes together cover 149 modified files, so it's a large submission. This extent of changes are warrent to make use of the Object Cache
and multi-threaded loaded more robust.
git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/branches/OpenSceneGraph-3.4@15165 16af8721-9629-0410-8352-f15c8da7e697
35 lines
1.2 KiB
C++
35 lines
1.2 KiB
C++
#include <osgFX/AnisotropicLighting>
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#include <osgDB/ReadFile>
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#include <osgDB/ObjectWrapper>
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#include <osgDB/InputStream>
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#include <osgDB/OutputStream>
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static bool checkLightingMap( const osgFX::AnisotropicLighting& effect )
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{
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if ( !effect.getLightingMap() ) return false;
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return !effect.getLightingMap()->getFileName().empty();
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}
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static bool readLightingMap( osgDB::InputStream& is, osgFX::AnisotropicLighting& effect )
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{
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std::string fileName; is.readWrappedString( fileName );
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osg::ref_ptr<osg::Image> image = osgDB::readRefImageFile(fileName, is.getOptions());
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effect.setLightingMap( image.get() );
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return true;
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}
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static bool writeLightingMap( osgDB::OutputStream& os, const osgFX::AnisotropicLighting& effect )
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{
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os.writeWrappedString( effect.getLightingMap()->getFileName() );
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os << std::endl; return true;
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}
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REGISTER_OBJECT_WRAPPER( osgFX_AnisotropicLighting,
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new osgFX::AnisotropicLighting,
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osgFX::AnisotropicLighting,
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"osg::Object osg::Node osg::Group osgFX::Effect osgFX::AnisotropicLighting" )
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{
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ADD_INT_SERIALIZER( LightNumber, 0 ); // _lightnum
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ADD_USER_SERIALIZER( LightingMap ); // _texture
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}
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