Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!olivea!oliveb!amiga!boing!dale
From: dale@boing.UUCP (Dale Luck)
Newsgroups: comp.windows.x
Subject: Re: PC X servers / backing store
Message-ID: <954@boing.UUCP>
Date: 10 Mar 91 19:41:59 GMT
References: <952@boing.UUCP> <163@tdatirv.UUCP> <953@boing.UUCP> <1991Mar9.154127.27485@grebyn.com>
Reply-To: dale@boing.UUCP (Dale Luck)
Organization: Boing, Milpitas, Ca.
Lines: 35

In article <1991Mar9.154127.27485@grebyn.com> ckp@grebyn.com (Checkpoint Technologies) writes:
>In article <952@boing.UUCP> dale@boing.UUCP (Dale Luck) writes:
>>The Amiga guarentees backing store with it's SMART_REFRESH windows.
>
>..and then, sometime later it crashes the system with an OUT OF MEMORY
>alert when there is no longer enough chip RAM.

The person responsible for this piece of misinformation needs to do
a little more research.  Maybe the message appearing as an anomonous
post indicates this person does not want to admit to making this
comment.

The Amiga does not alert when it runs out of graphics memory that may be
required to support guarenteed backing store. The function that may have
required more backing store to be allocated fails and the system keeps
running along.

>Somehow I find I prefer
>the X backing store policy that backing is no longer done when the
>server cannot do it, however your application keeps running.

We had looked at a new type of window type called JANUS, which implemented
the X Window type of window refresh policy. It was not done due to
lack of time.

>-- 
>First comes the logo: C H E C K P O I N T  T E C H N O L O G I E S      / /  
>                                                                    \\ / /    
>Then, the disclaimer:  All expressed opinions are, indeed, opinions. \  / o
>Now for the witty part:    I'm pink, therefore, I'm spam!             \/


-- 
Dale Luck     GfxBase/Boing, Inc.
{uunet!cbmvax|pyramid}!amiga!boing!dale