FGFS-4.1/OpenSceneGraph
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Refactored the PagedLODList implementation so that it's now done via a base class that enables different implementations to be easily tried. Initial concrete PagedLODList is the SetBasedPagedLODList.

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This commit is contained in:
Robert Osfield
2010-06-03 14:14:40 +00:00
parent 363736303e
commit 2ea6aa050e
3 changed files with 207 additions and 172 deletions
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21
include/osgDB/DatabasePager
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@@ -336,6 +336,19 @@ class OSGDB_EXPORT DatabasePager : public osg::NodeVisitor::DatabaseRequestHandl
typedef std::set<unsigned int> ActiveGraphicsContexts;
typedef std::vector< osg::observer_ptr<osg::GraphicsContext> > CompileGraphicsContexts;
class CountPagedLODsVisitor;
struct PagedLODList : public osg::Referenced
{
virtual PagedLODList* clone() = 0;
virtual void clear() = 0;
virtual unsigned int size() = 0;
virtual void moveInactivePagedLODTo(PagedLODList& inactivePagedLODList, const osg::FrameStamp& framestamp) = 0;
virtual void moveActivePagedLODTo(PagedLODList& activePagedLODList, const osg::FrameStamp& framestamp) = 0;
virtual void removeExpiredChildren(int& numberChildrenToRemove, double expiryTime, int expiryFrame, osg::NodeList& childrenRemoved) = 0;
virtual void insertPagedLOD(osg::PagedLOD* plod) = 0;
};
protected:
virtual ~DatabasePager();
@@ -345,9 +358,6 @@ class OSGDB_EXPORT DatabasePager : public osg::NodeVisitor::DatabaseRequestHandl
struct RequestQueue;
typedef osg::observer_ptr<osg::PagedLOD> PagedLODObserver;
typedef std::list< PagedLODObserver > PagedLODList;
struct DatabaseRequest : public osg::Referenced
{
DatabaseRequest():
@@ -444,7 +454,6 @@ class OSGDB_EXPORT DatabasePager : public osg::NodeVisitor::DatabaseRequestHandl
class FindCompileableGLObjectsVisitor;
friend class FindCompileableGLObjectsVisitor;
class CountPagedLODsVisitor;
class FindPagedLODsVisitor;
friend class FindPagedLODsVisitor;
@@ -579,8 +588,8 @@ class OSGDB_EXPORT DatabasePager : public osg::NodeVisitor::DatabaseRequestHandl
osg::ref_ptr<RequestQueue> _dataToMergeList;
PagedLODList _activePagedLODList;
PagedLODList _inactivePagedLODList;
osg::ref_ptr<PagedLODList> _activePagedLODList;
osg::ref_ptr<PagedLODList> _inactivePagedLODList;
unsigned int _targetMaximumNumberOfPageLOD;