PackBits

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Article #2743

#2743

From: William Joseph Marriott
Date: Thu, 10 Aug 1989 07:19

13 lines
798 bytes

Before a MacPaint file is saved, a call is made to the Mac ROM call
PackBits(). The only thing I've found describing this call is that it is a
very simple data compression technique; this was from the relevant
section in Inside Macintosh.

Does anyone know precisely how the bitmapped image is packed?

The data is needed so that a "MacPaint" file can be created on a 
PC-compatible and transmitted to the Mac.

APDA lacks the formats and information required, apparently.

Any other obvious resources I'm overlooking?

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Message-ID: <21167@cup.portal.com>

Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!portal!cup.portal.com!Lou

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!portal!cup.portal.com!Lou
From: Lou@cup.portal.com (William Joseph Marriott)
Newsgroups: comp.sys.mac
Subject: PackBits
Message-ID: <21167@cup.portal.com>
Date: 10 Aug 89 07:19:56 GMT
Organization: The Portal System (TM)
Lines: 13