Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!mips!apple!dlyons
From: dlyons@Apple.COM (David A. Lyons)
Newsgroups: comp.sys.apple2
Subject: Re: Synnovision
Message-ID: <51808@apple.Apple.COM>
Date: 22 Apr 91 09:42:30 GMT
References: <9104200324.AA14018@apple.com> <1991Apr20.060038.22563@nntp-server.caltech.edu>
Organization: Apple Computer Inc., Cupertino, CA
Lines: 19

In article <1991Apr20.060038.22563@nntp-server.caltech.edu> toddpw@nntp-server.caltech.edu (Todd P. Whitesel) writes:
>[...] Correct me if I'm wrong, Dave, but Quickdraw internally
>renders nearly everything in 1 bit and then copies it to the screen while
>expanding the pixel depth on the fly (using tables or some such).

Yes, this is correct for text drawing only.  For everything but text, there
is a pen pattern and pen mask to apply, so doing 1-bit stuff wouldn't help.

(And when you're drawing Shaston 8 in 640 and no clipping happens, it uses
FastFont, which is already expanded to 2 bits deep and is preshifted for
all possible offsets within a byte.)
-- 
David A. Lyons, Apple Computer, Inc.      |   DAL Systems
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