Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cbmvax!peter
From: peter@cbmvax.commodore.com (Peter Cherna)
Newsgroups: comp.sys.amiga.programmer
Subject: Re: Sun Mouse type programs are jumpy on 3000
Message-ID: <21469@cbmvax.commodore.com>
Date: 10 May 91 15:42:25 GMT
References: <1991May8.234800.24930@ucunix.san.uc.edu> <21419@cbmvax.commodore.com> <1991May10.003358.2007@ucunix.san.uc.edu>
Reply-To: peter@cbmvax.commodore.com (Peter Cherna)
Distribution: usa
Organization: Commodore-Amiga, Inc.  West Chester, PA.
Lines: 40

In article <1991May10.003358.2007@ucunix.san.uc.edu> link@ucunix.san.uc.edu (Virginia Link) writes:
>In article <21419@cbmvax.commodore.com> peter@cbmvax.commodore.com (Peter Cherna) writes:

>After reading a few replies to my pleas, I have tried several things.
>One -   It does make a big difference when reducing the number of colors being
>        displayed by workbench.  The activation response is much better
>        with only four colors.

Right, there is less rendering work to do.

>Two -   If workbench is set to a backdrop, window activation is even better.

One less window is affected.

>Three - Other programs, such as Ncomm with hi-res and 8 colors have
>        much smoother operation when doing activations.

When a window is activated or unactivated, all the gadgets that are
in its border need to be redrawn.  Workbench has several extra
(two silders and four arrows).

>Questions- Is there any way to reduce the lag the pointer experiences
>           when the workbench has 8 or 16 colors other than delaying the
>           activation as you mentioned?  

That's the best way.  Note that the latest MachIII that just appeared
on a Fish disk (471) has the delayed-activation trick.
>           And it seems like the 68030 should make up for any extra overhead
>           required for the 2.0 windows.

It helps, but some of the operation is still blitter-based.

>vlink

     Peter
--
Peter Cherna, Operating Systems Development Group, Commodore-Amiga, Inc.
{uunet|rutgers}!cbmvax!peter    peter@cbmvax.commodore.com
My opinions do not necessarily represent the opinions of my employer.
"If all you have is a hammer, everything looks like a nail."