FGFS-4.1/OpenSceneGraph
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From John Vida Larring, "If an application initializes osgViewer::GraphicsWindowEmbedded() but never gets around to do any rendering before the application is closed, the result with be a crash (SIGABRT/std::logic_error) in osg::getGLVersionNumber().

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The fix was to check whether glGetString( GL_VERSION ) returned a null pointer (Ref. svn diff below). The altered src/osg/GLExtensions.cpp is zipped and attached to this email."
This commit is contained in:
Robert Osfield 2008-09-20 10:05:31 +00:00
parent 0b5852948d
commit 8552faf774
1 changed files with 2 additions and 0 deletions
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2
src/osg/GLExtensions.cpp
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@ -44,6 +44,8 @@ float osg::getGLVersionNumber()
{
// needs to be extended to do proper things with subversions like 1.5.1, etc.
char *versionstring = (char*) glGetString( GL_VERSION );
if (!versionstring) return 0.0;
std::string vs( versionstring );
return( atof( vs.substr( 0, vs.find( " " ) ).c_str() ) );
}