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Added DatabasePager::getRequestsInProgress() that return true if there are still tiles to load.

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Added DatabasePager::setTargetMaximumNumberOfPageLOD(..) that sets the target number of PagedLOD to try and maintain
This commit is contained in:
Robert Osfield
2008-11-26 11:12:19 +00:00
parent e3d1c4ba04
commit b2762c4788
2 changed files with 52 additions and 9 deletions
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19
include/osgDB/DatabasePager
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@@ -100,6 +100,9 @@ class OSGDB_EXPORT DatabasePager : public osg::NodeVisitor::DatabaseRequestHandl
void setDone(bool done) { _done = done; }
bool getDone() const { return _done; }
void setActive(bool active) { _active = active; }
bool getActive() const { return _active; }
virtual int cancel();
@@ -110,6 +113,7 @@ class OSGDB_EXPORT DatabasePager : public osg::NodeVisitor::DatabaseRequestHandl
virtual ~DatabaseThread();
bool _done;
bool _active;
DatabasePager* _pager;
Mode _mode;
std::string _name;
@@ -202,6 +206,15 @@ class OSGDB_EXPORT DatabasePager : public osg::NodeVisitor::DatabaseRequestHandl
unsigned int getMaximumNumOfObjectsToCompilePerFrame() const { return _maximumNumOfObjectsToCompilePerFrame; }
/** Set the target maximum number of PagedLOD to maintain in memory.
* Note, if more than the target number are required for rendering of a frame then these active PagedLOD are excempt from being expiried.
* But once the number of active drops back below the target the inactive PagedLOD will be trimmed back to the target number.*/
void setTargetMaximumNumberOfPageLOD(unsigned int target) { _targetMaximumNumberOfPageLOD = target; }
/** Get the target maximum number of PagedLOD to maintain in memory.*/
unsigned int getTargetMaximumNumberOfPageLOD() const { return _targetMaximumNumberOfPageLOD; }
/** Set the amount of time that a subgraph will be kept without being visited in the cull traversal
* before being removed.*/
void setExpiryDelay(double expiryDelay) { _expiryDelay = expiryDelay; }
@@ -311,7 +324,11 @@ class OSGDB_EXPORT DatabasePager : public osg::NodeVisitor::DatabaseRequestHandl
/** Report how many items are in the _dataToCompileList queue */
unsigned int getDataToCompileListSize() const { return _dataToCompileList->_requestList.size(); }
/** Report how many items are in the _dataToCompileList queue */
unsigned int getDataToMergeListSize() const { return _dataToMergeList->_requestList.size(); }
/** Report whether any requests are in the pager.*/
bool getRequestsInProgress() const;
/** Get the minimum time between the first request for a tile to be loaded and the time of its merge into the main scene graph.*/
double getMinimumTimeToMergeTile() const { return _minimumTimeToMergeTile; }
@@ -558,7 +575,7 @@ class OSGDB_EXPORT DatabasePager : public osg::NodeVisitor::DatabaseRequestHandl
PagedLODList _activePagedLODList;
PagedLODList _inactivePagedLODList;
unsigned int _maximumNumberOfPageLOD;
unsigned int _targetMaximumNumberOfPageLOD;
double _expiryDelay;
int _expiryFrames;