Path: utzoo!attcan!uunet!intercon!news
From: amanda@mermaid.intercon.com (Amanda Walker)
Newsgroups: comp.graphics
Subject: Re: the essence of Atkinson's regions patent
Message-ID: <2663DC1A.741@intercon.com>
Date: 30 May 90 14:43:38 GMT
References: <1990May24.184352.29786@dircon.uucp> <3349@cerberus.oakhill.UUCP>
Sender: usenet@intercon.com (USENET The Magnificent)
Reply-To: amanda@mermaid.intercon.com (Amanda Walker)
Organization: InterCon Systems Corporation, Herndon, VA
Lines: 19

In article <3349@cerberus.oakhill.UUCP>, hunter@oakhill.UUCP (Hunter Scales)
writes:
> 	Question: how do the new graphics accelerators (from Supermac,
> 	among others) get around this?  Dont they have to deal with 
> 	Atkinson's implementation of regions to be compatible with
> 	Quickdraw calls?

Most of them don't replace QuickDraw lock, stock, and barrel, but only
replace certain speed-critical common cases (bitblting rectangular regions
around, scrolling a rectangle, filling a rectangle, etc.).  Also, since
these boards end up sitting in a Mac and require QuickDraw to already be
there anyway, I imagine that Apple doesn't get too annoyed even if the
accelerator code does peek into regions...

--
Amanda Walker
--
This posting is cursed.  As you read it you will be confuset by ther
printeb wertz.  Yer intelijen will vabni ..... XRT! XRT!