Hi,
Turns out that it's not a font in the object cache that's causing me grief
after all, but instead the static default font here:
https://github.com/openscenegraph/OpenSceneGraph/blob/OpenSceneGraph-3.6/src/osgText/Font.cpp#L40.
This is initialised from a GLubyte array instead of a file, so never ends up
in the object cache.
I can manually call releaseGLObjects on it when a graphics context is
destroyed, which solves the problem for my application, but I can provide an
example of an OSG application that CodeXL says leaks stuff to prove that
there's still a footgun.
Code:
int main()
{
osgViewer::Viewer viewer;
// Use an auto transform so the text actually faces the screen
osg::ref_ptr<osg::AutoTransform> scene = new osg::AutoTransform();
scene->setAutoRotateMode(osg::AutoTransform::ROTATE_TO_SCREEN);
viewer.setSceneData(scene);
osg::ref_ptr<osgText::Text> text1 = new osgText::Text();
text1->setText("text1");
scene->addChild(text1);
// Display one or more frames
viewer.setCameraManipulator(new osgGA::TrackballManipulator());
for (int i = 0; i < 100; ++i)
viewer.frame();
// Remove a text node
scene->removeChild(text1);
// Pick which path depending on whether or not we trust all references to
things to go away
if (false)
{
text1->releaseGLObjects();
}
else
{
}
text1 = nullptr;
// osgText::Font::getDefaultFont::s_defaultFont still exists, so the
default font isn't released
return viewer.run();
}
As before, CodeXL is still reporting the following error:
[Image:
https://cdn.discordapp.com/attachments/502999428798480387/596112745104146487/unknown.png
]
Maybe it would be a good idea for static OSG objects to all be held together in
a global vector somewhere so that their GL objects can be released whenever a
context is destroyed. Maybe something like that exists already and the default
font just got forgotten.
Cheers,
Chris
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=76365#76365
_______________________________________________
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
