Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!ukc!slxsys!dircon!uad1077
From: uad1077@dircon.uucp (Ian D. Kemmish)
Newsgroups: comp.windows.misc
Subject: (Sparcstation) GX questions
Keywords: GX,sun,X11,accelerators
Message-ID: <1990Sep17.130951.13355@dircon.uucp>
Date: 17 Sep 90 13:09:51 GMT
Sender: uad1077@dircon.uucp
Reply-To: uad1077@dircon.uucp (Ian D. Kemmish)
Organization: The Direct Connection, UK
Lines: 24



I'm just porting X11r4 to use the GX graphics accelerator on a
SS1 (or is it GFX? - it's a cg6 framebuffer anyway!).  It works
really well, but there are a couple of minor questions:
1) The THC appears to support a hardware cursor, but I can't
  find any way to set the cursor colormap.  Am I limited to
  black and white, or do I have to wiggle the Brooktree's control
  lines myself, or is there a civilised way to do it?
2) Looking at the register names, it *looks* as if I'm
  actually talking to the alpha-planes of a 32-plane display.
  Was the chipset designed with decent colour displays in mind?
  Is such a framebuffer on the cards?  A machine the price of a
  SS1 (plus a little but for the extra VRAMS) with *real*,
  *accelerated* colour would be a VERY attractive proposition.....

PS: After this, comes the research 3D window manager... Anyone with
any experience of talking to the transform engine?

-- 
Ian D. Kemmish                    Tel. +44 767 601 361
18 Durham Close                   uad1077@dircon.UUCP
Biggleswade                       ukc!dircon!uad1077
Beds SG18 8HZ United Kingd    uad1077%dircon@ukc.ac.uk