[Mesa3d-dev] [Bug 24226] libGL tries using direct mode when it should use indirect (only tries indirect if forced)

[<bug...@fr...>]

http://bugs.freedesktop.org/show_bug.cgi?id=24226





--- Comment #15 from George Sapountzis <gsa...@gm...>  2010-03-27 05:56:07 PST ---
(In reply to comment #14)
> The question is, when libGL.so is compiled with direct rendering support, how
> to decide if direct rendering is viable at runtime?  The connection to xserver
> may be remote or local.  The configs from xserver and dri driver may or may not
> match.  How do they affect the decision?
> 

I don't think there is a simple way to decide. One way to answer this is to
change glxext.c from:

   if (glx_direct)
      dpyPriv->driswDisplay = driswCreateDisplay(dpy);

to:

   if (glx_direct && !glx_accel)
      dpyPriv->driswDisplay = driswCreateDisplay(dpy);

and see if people complain :-(

It will mainly affect developers who usually explicitly set
LIBGL_ALWAYS_SOFTWARE. Also wiki's won't have to be updated because they
usually instruct people to set the envvar.


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