FGFS-4.1/OpenSceneGraph
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Added support for an update OperationQueue to Viewer and CompositeViewer to allow asyncrnous adding of operations to be added

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to the view to be done during syncronous updateTraversal().

This feature can be used for doing things like merging subgraphs that have been loaded
in a background thread.
This commit is contained in:
Robert Osfield
2007-08-11 10:28:14 +00:00
parent 0e475106dc
commit e5a365afee
9 changed files with 348 additions and 3 deletions
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24
src/osgViewer/Viewer.cpp
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@@ -1326,6 +1326,25 @@ void Viewer::eventTraversal()
}
void Viewer::addUpdateOperation(osg::Operation* operation)
{
if (!operation) return;
if (!_updateOperations) _updateOperations = new osg::OperationQueue;
_updateOperations->add(operation);
}
void Viewer::removeUpdateOperation(osg::Operation* operation)
{
if (!operation) return;
if (_updateOperations.valid())
{
_updateOperations->remove(operation);
}
}
void Viewer::updateTraversal()
{
if (_done) return;
@@ -1343,6 +1362,11 @@ void Viewer::updateTraversal()
_scene->getDatabasePager()->updateSceneGraph(_frameStamp->getReferenceTime());
}
if (_updateOperations.valid())
{
_updateOperations->runOperations(this);
}
{
// call any camera update callbacks, but only traverse that callback, don't traverse its subgraph
// leave that to the scene update traversal.