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From: wirehead@oxy.edu (David J. Harr)
Newsgroups: comp.sys.mac.programmer
Subject: How to call the QuickDraw Bottlenecks from custom bottlenecks?
Message-ID: <117652@tiger.oxy.edu>
Date: 19 Oct 90 19:56:41 GMT
Organization: Occidental College, Los Angeles, CA  90041
Lines: 24

I am doing some graphics programming, and I am replacing some of the
QuickDraw bottlenecks to get increased performance. Taking a look at issue
#3 of d e v e l o p, there is an article by Guillermo Ortiz on the 8.24 GC,
he states
that whenever possible, if the bottlenecks are replaced that the application
that replaced the bottlenecks should call the originals through the trap
dispatcher to ensure compatibility. Now, I am missing something here. If I
replace the bottlenecks to increase speed, don't I just shoot myself in the
foot by calling the very routine that I am trying to speed up when I am
finished doing my speedy drawing? I want to support the accelerator cards
and ensure that the people who buy them are not hurt by my replacing the
routines, but I'd also like to run faster on those machines without
acceleration. If anybody can tell me exactly what Mr. Ortiz is referring to
or can direct me to more specific literature on replacing QuickDraw
bottlenecks, I'd be appreciative (I already know about IM I, I have read
everything about bottlenecks in there several times.)

advaTHANKSnce

David

The preceding has been another fine product of the warped mind of

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