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 -- internet: mkhaw@teknowledge.arpa uucp: {uunet|sun|ucbvax|decwrl|ames|hplabs}!mkhaw%teknowledge.arpa hardcopy: Teknowledge Inc, 1850 Embarcadero Rd, POB 10119, Palo Alto, CA 94303