Path: utzoo!utgpu!watmath!clyde!att!rutgers!mailrus!cornell!uw-beaver!teknowledge-vaxc!mkhaw
From: mkhaw@teknowledge-vaxc.ARPA (Mike Khaw)
Newsgroups: comp.windows.x
Subject: Re: Multiple Virtual Monochrome Screens for Sun CG2
Message-ID: <26018@teknowledge-vaxc.ARPA>
Date: 1 Dec 88 18:18:55 GMT
References: <1215@cps3xx.UUCP>
Organization: Teknowledge, Inc., Palo Alto CA
Lines: 20

<1215@cps3xx.UUCP>, by usenet@cps3xx.UUCP (Usenet file owner):
- In article <8811302337.AA08445@cleo.sw.mcc.com> peterson@SW.MCC.COM (James Peterson) writes:
->
->  ...  This means that the Sun color display
->(CG2) can contain up to 8 separate virtual monochrome screens -- each
->virtual monochrome screen stored in one of the 8 bit planes of the
->color display.
- 
- Would it be possible to do the same thing for the CG4?

Probably, but we've found that painting on only some of the bitplanes of
the color planes in a cgfour can actually be SLOWER than using all 8 bit
planes.  The cgfour is just memory and relies on the system CPU to do all
the bit-pushing, so it's pretty slow to begin with.

Mike Khaw
-- 
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