FGFS-4.1/OpenSceneGraph
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Improvements to the DatabasePager and PagedLOD class adding support for

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deleting expuired children in the database thread.
This commit is contained in:
Robert Osfield
2003-07-09 14:55:39 +00:00
parent dcbaf59753
commit 5aa47a77c2
9 changed files with 140 additions and 50 deletions
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33
src/osgProducer/Viewer.cpp
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@@ -296,11 +296,44 @@ bool Viewer::realize( ThreadingModel thread_model )
return realize();
}
class DatabasePagerCompileCallback : public OsgSceneHandler::Callback
{
public:
DatabasePagerCompileCallback(DatabasePager* databasePager):
_databasePager(databasePager)
{}
virtual void operator()(OsgSceneHandler& sh, Producer::Camera& camera)
{
_databasePager->compileRenderingObjects(*(sh.getSceneView()->getState()));
sh.drawImplementation(camera);
}
osg::ref_ptr<DatabasePager> _databasePager;
};
bool Viewer::realize()
{
if (_realized) return _realized;
OsgCameraGroup::realize();
// by default set up the DatabasePager.
{
_databasePager = new DatabasePager;
_databasePager->registerPagedLODs(getTopMostSceneData());
for(SceneHandlerList::iterator p=_shvec.begin();
p!=_shvec.end();
++p)
{
(*p)->getSceneView()->getCullVisitor()->setDatabaseRequestHandler(_databasePager.get());
(*p)->setDrawCallback(new DatabasePagerCompileCallback(_databasePager.get()));
}
}
// force a sync before we intialize the keyswitch manipulator to home
// so that Producer has a chance to set up the windows before we do