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From: tve@sprite.berkeley.edu (Thorsten von Eicken)
Newsgroups: comp.windows.x
Subject: Re: X11R4 Xsun, GX support
Keywords: X11R4 Xsun GX
Message-ID: <21015@pasteur.Berkeley.EDU>
Date: 6 Jan 90 03:08:45 GMT
References: <1990Jan5.233228.7576@sun1.ruf.uni-freiburg.de>
Sender: news@pasteur.Berkeley.EDU
Reply-To: tve@sprite.berkeley.edu (Thorsten von Eicken)
Organization: University of California, Berkeley
Lines: 23

In article <1990Jan5.233228.7576@sun1.ruf.uni-freiburg.de> root@sun1.ruf.uni-freiburg.de (Martin Walter) writes:
>
>Is there any possibility to enable Xsun to USE the GX ?
>_____________________________________________________________________________
>Internet: mawa@sun1.ruf.uni-freiburg.de     (132.230.1.1) | Rechenzentrum Uni
>X.400: G=martin;S=walter;OU=ruf;P=uni-freiburg;A=dbp;C=de | Freiburg, Germany

X11R4 uses the cgsix board as a dumb framebuffer. The ioctls handle the
colormap and map the framebuffer into the server's address space.  We are
not running SunOS and had to write our own code to handle the colormap.
It turned out Sun wouldn't tell us *anything at all* about the GX: they are
worried about GX clones (did I head SolBrn?). I spent a lot of time with
forth-hacking and finally got it running. I also figured out how to use
the hardware cursor of the GX, but I haven't incorporated it into X. I
plan to play with the GX sometime...
Well, after all that, I guess the answer to your question is: there is
no way to "enable" the GX. You can either rewrite parts of the server to
use Sun's lowest level library (pixrect?), or figure out how the GX
works, unless Sun tells you that.
I hear MIT tried to run X on the GX but found it not worth it, but
that's hear-say-hear-say info, any comments by someone who knows?
	Thorsten von Eicken
	tve@sprite.berkeley.edu