Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!elroy.jpl.nasa.gov!sdd.hp.com!uakari.primate.wisc.edu!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!pacbell.com!tandem!netcom!cooper From: cooper@netcom.COM (Ken Cooper) Newsgroups: comp.lang.smalltalk Subject: Re: Re: optimising redraws of graphic panes in ST/V 286 Message-ID: <26727@netcom.COM> Date: 4 Mar 91 02:39:38 GMT References: <2038@media01.UUCP> <4060008@hpctdkf.HP.COM> Organization: Netcom - Online Communication Services UNIX System {408 241-9760 guest} Lines: 12 The biggest gain we got was in blitting; as I mentioned, blitting only on 8 bit boundaries made a big difference. Also, you probably already know this, but some operations are done pretty boneheadedly, like drawing rectangles and lines (as I recall, the rectangle routine was pretty funny to look at; kind of like looking at the bit manipulation routines). Good luck with it! BTW, what is CTD? I used to work in CTOS at Corporate, and that's a new acronym by me. Ken Cooper Acumen Software