Thanks John, I have merged your change and submitted to SVN, but why
is getGLVersionNumber() being called on close of the application in
this instance? It suggest to me a problem lurking elsewhere.
On Fri, Sep 19, 2008 at 3:41 PM, John Vidar Larring
<[EMAIL PROTECTED]> wrote:
> Hi Robert,
>
> 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().
>
> 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.
>
> Best regards,
> John
>
> % svnversion
> 8817M
> % svn diff src/osg/GLExtensions.cpp
> Index: src/osg/GLExtensions.cpp
> ===================================================================
> --- src/osg/GLExtensions.cpp (revision 8817)
> +++ src/osg/GLExtensions.cpp (working copy)
> @@ -44,6 +44,7 @@
> {
> // 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() ) );
> }
>
>
> --
> This message has been scanned for viruses and
> dangerous content by MailScanner, and is
> believed to be clean.
>
>
> _______________________________________________
> osg-submissions mailing list
> [email protected]
> http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org
>
>
_______________________________________________
osg-submissions mailing list
[email protected]
http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org
