OpenGL regression

Huw D M Davies h.davies1 at
Fri Dec 9 08:25:15 CST 2005

On Fri, Dec 09, 2005 at 12:26:43AM +0100, Raphael wrote:
> For Stefan problem i don't understand how it can fail :(

My guess is Stefan's XServer is glx version 1.2 (Stefan glxinfo will
comfirm this).

Looking at libGL, it uses the X_GLXVendorPrivateWithReply request with
the vendor code X_GLXvop_GetDrawableAttributesSGIX when the server
version is < 1.3 (otherwise it uses the X_GLXGetDrawableAttributes
request).  Mesa doesn't support this vendor code so the request fails.
You probably need to catch this error and take the appropiate action
if it fails.

Huw Davies
huw at

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