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From: tsw@hpctdkf.HP.COM (Tom Wisdom)
Newsgroups: comp.lang.smalltalk
Subject: Re: Re: optimising redraws of graphic panes in  ST/V 286
Message-ID: <4060007@hpctdkf.HP.COM>
Date: 21 Feb 91 18:08:28 GMT
References: <2038@media01.UUCP>
Organization: Hewlett-Packard CTD, Colo. Spgs.
Lines: 19

/ hpctdkf:comp.lang.smalltalk / cooper@netcom.COM (Ken Cooper) / 10:22 pm  Feb 19, 1991 /
>One other thing you might note: Smalltalk/V 286's graphics bitblt routines
>are optimized for blitting on 8 bit boundaries.  It makes *quite* a difference.

Did Acumen rewrite the bitblt routines for Widgets/V286?
If so, what kind of performance improvement did you get?

Aren't you limited by the PC/AT bus width and the display adaptor's
bus interface (8 or 16 bit)?

>Ken Cooper
>Acumen Software
>----------

"LOOKING FOR FASTER, WIDER, DEEPER SMALLTALK"

Tom Wisdom,          Hewlett-Packard, Colorado Telecommunications Division
P.O. Box 7050, Colorado Springs, CO 80933 | UUCP: hplabs!hp-lsd!hpctdlb!tsw
Phone: (719) 531-4739			  | ARPA: tsw@hpctdlb.col.hpcom