Hi Robert,
Proposal:
new member: BufferData::_numUsers initialized to
BufferData::getReferenceCount when the GL buffer object is created and
filled
In Texture:apply, decrement the _numUsers member of the Image and
release the GL buffer object if the sum of the _numUsers of all the
BufferData contained if the GL buffer object is 0
Any thoughts ?
Lionel
On 14/12/2012 10:12, Robert Osfield wrote:
Hi Lionel,
Thanks for the explanation/code segment on the other thread. I now
understand what is at issue, when an PBO is shared between
osg::Texture/osg::Image the release is done by the first texture that
applies it, rather than the last one to need it. I don't think the
suggested fix of modifying the IncrementalCompileOperation is
appropriate - it just hides the bug which is actually in the way that
osg::Texture does the release based on the assumption that it's the
only one using it. A proper solution will be to add some support into
osg::BufferObject for registering when BufferData has been used and no
longer required.
Robert.
_______________________________________________
osg-submissions mailing list
[email protected]
http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org
_______________________________________________
osg-users mailing list
[email protected]
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
