Newsgroups: comp.windows.x
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!wuarchive!mit-eddie!bloom-beacon!dont-send-mail-to-path-lines
From: mouse@lightning.mcrcim.mcgill.EDU (der Mouse)
Subject: Re:  Color Server question
Message-ID: <9103280513.AA15761@lightning.McRCIM.McGill.EDU>
Sender: tytso@athena.mit.edu (Theodore Y. Ts'o)
Organization: The Internet
Date: 28 Mar 91 05:13:14 GMT
Lines: 21

> A question for those who have developed servers for colour displays
> with large depths: How did you do the colormap?

I would recommend providing only TrueColor and DirectColor visuals.

> If you have a 36bit colour you do not really want to allocate such a
> large colourmap, is there a recommended solution?

Seems to me the hardware will impose some restrictions on you.  It's
unlikely that the hardware is (in X terms) 36-bit PseudoColor; a
64-gigaentry hardware colormap would take up a lot of silicon.  So, I
would say you should present an X visual that matches what the hardware
does, which is probably 12/12/12 TrueColor or DirectColor.  If the
hardware makes it possible, it might be nice to present an 8-bit
PseudoColor visual, preferably with multiple installed maps, but that's
a bit of a frill, IMO.

					der Mouse

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