Hi,
Simply you can't do it. They are completle different smart pointers. shared_ptr
has outside reference counting and ref_ptr has inside reference counting in
osg::Referenced class. Basically you would need to call ref() everytime you
create or copy shared_ptr and call unref() (unref_nodelete()) every time
shared_ptr is destroyed. And use custom deleter (void
custom_del(osg::Referenced* referenced) { referenced->unref(); ??}. But I dont
think it will work. Your main problem is that those pointer types have no idea
about each other. If your osg::Referenced ref counter drop to zero, your object
gets deleted, but you can still have some shared_ptr around with bad data and
vice versa, if your shared_ptr gets deleted, you can still have some ref_ptrs
in osg classes.
But what I can recommend is this:
subclass osg::Drawable (or Geometry) if you look into osg/Geometry.cpp all
functions that accepts arrays (drawImplementation, acceptPrimitiveFunctor,
computeBounds, ... ) can use float* values ...basically glVertexPointer doesnt
care about your array type. You can create your custom class without Array
Pointers, but with your own shared_ptrs.
Code:
class MyDrawable : public osg::Drawable
{
MyDrawable(std::shared_ptr<MyCustomArrayType> arr) :
m_arr(arr)
{}
private:
std::shared_ptr<MyCustomArrayType> m_arr;
}
Then you would have to look at each virtual function of osg::Drawable and
implement it (its not so hard, just take a look at osg::Geometry, how its done
- but instead of osg::VecArrays you will use your Array). Of course you dont
need to implement all of them.
Cheers,
Filip
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=66764#66764
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