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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","serif";
color:#1F497D'>Does this crash occur with Mesa as well? If yes, it might be
interesting to step through the Mesa code to see what is going wrong in there.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","serif";
color:#1F497D'>Otherwise, drivers are never bug free of course. This could be a
bug in the Nvidia driver<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","serif";
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<p class=MsoNormal><b><span lang=DE style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
lang=DE style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
wine-patches-bounces@winehq.org [mailto:wine-patches-bounces@winehq.org] <b>On
Behalf Of </b>Louis. Lenders<br>
<b>Sent:</b> Thursday, June 26, 2008 9:06 AM<br>
<b>To:</b> wine-patches@winehq.org<br>
<b>Subject:</b> opengl32: work around a crash in glGetString<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'>Hi this fixes
http://bugs.winehq.org/show_bug.cgi?id=13599<br>
<br>
A +relay trace shows glGetString is crashing inside glGetString. The cause is
_not_ a lacking opengl context setup around glGetString. I did some
testing and both on windows and wine glGetString just returns NULL if
this is the case, but it never crashes inside glGetString:<br>
<br>
/* glGetString without opengl context: */<br>
0009:Call opengl32.glGetString(00001f01) ret=004016bc<br>
0009:Ret opengl32.glGetString() retval=00000000 ret=004016bc<br>
<br>
/* Crash from Autocad */<o:p></o:p></p>
<pre>0064:Call opengl32.glGetString(00001f01) ret=1000cd58<br>
<br>
<o:p></o:p></pre><pre>0064:trace:seh:raise_exception code=c0000005 flags=0 addr=0x60ec12f6<br>
<br>
<o:p></o:p></pre><pre>0064:trace:seh:raise_exception info[0]=00000000<br>
<br>
<o:p></o:p></pre><pre>/* and<o:p></o:p></pre><pre style='margin-bottom:12.0pt'> never returns*/<br>
<br>
<o:p></o:p></pre><pre style='margin-bottom:12.0pt'><br>
<br>
<o:p></o:p></pre><pre style='margin-bottom:12.0pt'><o:p> </o:p></pre>
<p class=MsoNormal>This bug has been reproduced by several other people , so
it's also not due to a bad gl-setup on my side. In case you want to try ,
Autocad trial 2004 can be downloaded from
http://www.brothersoft.com/autocad-78351.html. It's the main issue that prevent
autocad 2004 up to 2008 from running.<br>
<br>
So for now my conclusion is, this is a nasty bug outside wine, and an exception
handler is needed to work around the crash. If the patch is rejected i would
appreciate some input. Thanks and regards<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Not happy with your email address? <br>
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