Path: utzoo!attcan!uunet!wuarchive!zaphod.mps.ohio-state.edu!sdd.hp.com!hp-pcd!hpcvlx!tomg
From: tomg@hpcvlx.cv.hp.com (Thomas J. Gilg)
Newsgroups: comp.sys.hp
Subject: Re: Double buffering in Starbase/X11 combined mode.
Message-ID: <101950145@hpcvlx.cv.hp.com>
Date: 11 Sep 90 16:32:31 GMT
References: <BESHERS.90Sep10165614@division.cs.columbia.edu>
Organization: Hewlett-Packard Co., Corvallis, OR, USA
Lines: 16


> Using a Turbo SRX, with X11R4 in combined mode, 12/12 planes
> double buffered, I ran two copies of an animation on the same
> display.  When a process has the input focus, it runs smoothly,
> but the other flickers, because the double buffering is out of sync.

The TSRX only has one hardware colormap, so you're seeing one of your
two applications controlling it, and the other being ignored.  There
is no way to avoid this for multiple unrelated clients.  It is possible
for one client to have multiple DB output windows however.

BTW - the new Turbo VRX (hp98735/98736) finally supports multiple (~14)
hardware colormaps.

Thomas Gilg
tomg@cv.hp.com