opengl32: work around a crash in glGetString
Massimo
max at veneto.com
Thu Jun 26 08:16:05 CDT 2008
I don't understand.... IF the testcase returns NULL without a context
(which should do anyways), both in linux and in windows, and what the
patch does is tu ensure that, with no crash, what's bad with it ?
In AutoCad's installer it's just called WITHOUT a proper opengl context,
in windows it's ok (I guess returning NULL), in wine it crashes; even if
the simple testcase doesn't, it still returns NULL.
It's obvious that the crash may depend on previous gl calls, or on some
previous and/or external bug, but it should still return NULL instead of
crashing.
Max
Louis. Lenders ha scritto:
> >As I mentioned before this requires a test case.
> As i tried to explain , in a simple test glGetString just return null,
> it will not crash for me, like it does in the program.
>
> >I remember from the gl log that the program didn't create a WGL
> context at all. It isn't allowed >to make opengl calls because of that
>
> Allowed or not, the program does so, and on windows it installs just fine.
>
> >Perhaps without a context (if Windows allows it) you get some GDI
> software renderer string >back or so.
>
> It just returns (null)
>
> >Anyway at this point it sounds like a workaround instead of a fix for
> the real bug.
> Well, the bug might be outside wine, so then it would be workaround,
> yes, but still necessary IMO.
>
> I cannot see how i can make a testcase based on the output of autocad here:
> http://bugs.winehq.org/attachment.cgi?id=14005 ,
> other then i did already. It's just an endless sequence of
> 'wglGetIntegerv','wglFinish', and 'wglFlush', and then a crash in
> glGetString. I cannot make a test program crash like that; the test
> program just returns null, like i said before
>
> A last stupid question for stefan: how can i make X load the mesa
> driver, instead of my nvidia?
>
>
>
>
>
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