Re: Fix for segmentation fault in stage with intel graphic boards

Applied a similar fix in trunk as rev 8613. Thanks for the fix!

Richard/

2010/4/16 Daniel Dube <[email protected]>:
> Hi,
>
> we had the reproducible problem, that stage crashed on four of five
> startups just after the simulation window appears. We noticed this problem
> on several Ubuntu 9.10 machines with attached intel graphic hardware. We
> tested the trunk and 3.2.2 version with the same result. The problem did
> not occur on machines with NVIDIA graphic boards.
>
> It seems that if Canvas::Resize() is called rather than Canvas::InitGl(),
> the intel driver produces a segmentation fault in the function
> glLoadIdentity() called by Canvas::FixViewport().
>
> The following patch should fix this problem:
>
> --- libstage/canvas.cc  (Revision 8612)
> +++ libstage/canvas.cc  (Arbeitskopie)
> @@ -1285,6 +1285,7 @@
>  void Canvas::resize(int X,int Y,int W,int H)
>  {
>    Fl_Gl_Window::resize(X,Y,W,H);
> -  FixViewport(W,H);
> +  if ( init_done )
> +         FixViewport(W,H);
>    invalidate();
>  }
>
>
> Regards
> Daniel
>
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-- 
Richard Vaughan
Autonomy Lab / Computing Science / Simon Fraser University

------------------------------------------------------------------------------
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