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https://bugs.freedesktop.org/show_bug.cgi?id=8443
Summary: MakeContextCurrent may use the wrong opcode
Product: Mesa
Version: CVS
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: GLX
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
When a thread switches from one Display to another, I think glxext.c currently
uses the same major opcode for both Displays, because it uses the new Display to
get the old opcode:
opcode = __glXSetupForCommand(dpy);
...
oldOpcode = (gc == oldGC) ? opcode : __glXSetupForCommand(dpy);
I think the following patch fixes the problem:
--- glxext.c 26 Sep 2006 23:56:20 -0000 1.25
+++ glxext.c 27 Sep 2006 22:38:19 -0000
@@ -1582,7 +1582,7 @@ USED static Bool MakeContextCurrent(Disp
}
oldGC = __glXGetCurrentContext();
- oldOpcode = (gc == oldGC) ? opcode : __glXSetupForCommand(dpy);
+ oldOpcode = (gc == oldGC) ? opcode :
__glXSetupForCommand(oldGC->currentDpy);
if (!oldOpcode) {
return GL_FALSE;
}
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