Article View: comp.sys.mac
Article #17497VBL tasks and LSC
From: Mark Johnson
Date: Mon, 20 Jul 1987 17:02
Date: Mon, 20 Jul 1987 17:02
25 lines
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1302 bytes
** Thanks to all of you who suggested looking at TN 19 for avoiding clicks in sound generation, and those of you who warned that following out the instructions of TN 19 might not be so easy using LSC. Very true. The machine consistently bombed whenever I put any LSC function on to the vertical retrace task queue. After some experimentation, I found the following declaration in MacTypes.h typedef int (*ProcPtr)() ; Is this right? Surely a procedure should return nothing, rather than an int? Replace this with typedef void (*ProcPtr)() ; the bomb disappears and I get clear, clickless sounds! Is this a bug? Mark Mark Johnson, CSLI and Dept. of Linguistics, Stanford University.
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!seismo!ll-xn!rutgers.rutgers.edu!labrea!su-russell!johnson From: johnson@su-russell.ARPA (Mark Johnson) Newsgroups: comp.sys.mac Subject: VBL tasks and LSC Message-ID: <325@su-russell.ARPA> Date: Mon, 20-Jul-87 13:02:46 EDT Article-I.D.: su-russe.325 Posted: Mon Jul 20 13:02:46 1987 Date-Received: Tue, 21-Jul-87 05:11:54 EDT Reply-To: johnson@csli.stanford.edu (Mark Johnson) Organization: Stanford University, CSLI Lines: 25 Summary: Should ProcPtr be typedefed as int (*ProcPtr)() ??