Robert, On Monday 27 August 2007 10:39:41 Robert Osfield wrote: > Another user recently reported problems with loading text in a > background thread, which fits your problem too. This was recently and > with the SVN version of the OSG so it looks like the problem persists. > > I suspect the problem is either in src/osgText/Font.cpp or the > freetype plugin, or freetype itself. If we can pinpoint where the > problem it should be easy to fix - something like adding a mutex to > serialize the freetype API access. > > I don't have an app that recreates this problem with rather limits my > ability to reproduce and fix it. So I either need an example that > reproduces the problem or for others to dig into the relevant code and > fix it.
I had a crashing problem related to osgText::Text. The stack showed that the crash was happening in osgText::Text::setText. This crash did not seem to happen when the freetype plugin was missing. I was using the arial.ttf font, and I had the same problem on both Windows and Linux. My code was creating a HUD compass tape along the bottom of the window. The compass used the osgText::Text nodes to label the tape marks. I was dynamically allocating the osgText::Text objects every time the view heading changed. When I replaced the dynamic allocation with a preallocated pool of objects, the crash went away (i.e. I was not able to produce a crash ... it might still be dormant in threading issues). To Summarize: - The crash happened when using the freetype plugin - The crash was triggered during calls to setText - I did not change any of my setText calls - Replacing the dynamic osgText::Text allocations fixed the crash Thanks, Justin _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
