Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!rutgers!cbmvax!jesup
From: jesup@cbmvax.commodore.com (Randell Jesup)
Newsgroups: comp.sys.amiga.programmer
Subject: Re: quasi WB2.0 BUGS
Message-ID: <20205@cbmvax.commodore.com>
Date: 30 Mar 91 02:51:27 GMT
References: <3877@bruce.cs.monash.OZ.AU> <20150@cbmvax.commodore.com> <1991Mar27.081942.3874@mintaka.lcs.mit.edu>
Reply-To: jesup@cbmvax.commodore.com (Randell Jesup)
Distribution: comp.sys.amiga.programmer
Organization: Commodore, West Chester, PA
Lines: 25

In article <1991Mar27.081942.3874@mintaka.lcs.mit.edu> rjc@geech.gnu.ai.mit.edu (Ray Cromwell) writes:
>   I have a suggestion. How about a new layer type called DUMB_REFRESH.
>DUMB_REFRESH layers would store the entire window offscreen instead of
>just the hidden parts. Intuition should  use DUMB_REFRESH windows
>as default until a memory pannic(AllocMem()) occurs, then intuition would
>convert a few DUMB layers into SIMPLE/SMART ;layers.

	It's in there: SUPERBITMAP windows.  Since 1.0.  Eats lots of
memory.

>  The Mac's system is less memory efficient, but faster. I feel
>the AMiga should offer both. Speed, and then memory efficiency.
>You could also make DUMB_REFRESH a preferences option, and people with
>gobs ram  could opt to activate it.

	That's NOT how the mac does it.  The mac uses the equivalent of
extra-simple simple refresh windows.  No non-visible portions are stored
by the MacOS.

-- 
Randell Jesup, Keeper of AmigaDos, Commodore Engineering.
{uunet|rutgers}!cbmvax!jesup, jesup@cbmvax.commodore.com  BIX: rjesup  
Thus spake the Master Ninjei: "To program a million-line operating system
is easy, to change a man's temperament is more difficult."
(From "The Zen of Programming")  ;-)