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- Newsgroups: comp.graphics
- Path: sparky!uunet!spool.mu.edu!agate!iat.holonet.net!bwilliam
- From: bwilliam@iat.holonet.net (Bill Williams)
- Subject: Re: QuickDraw-like region code
- Message-ID: <Bu7D7y.Duo@iat.holonet.net>
- Organization: HoloNet (BBS: 510-704-1058)
- References: <TMB.92Sep3182109@arolla.idiap.ch>
- Date: Mon, 7 Sep 1992 10:02:21 GMT
- Lines: 14
-
- >>technique that didn't infringe on Apple's patents...
-
- Well source in assembly for creating regions was written by
- Ted Cohn in Volume 5, number 6 Mac Tutor. But obviously in my
- opinion the technique of doing an XOR of a bit map with a
- downshifted copy could strictly be enforcable in a *SICK*
- universe as a PATENT INFRINGEMENT.
-
- My solution... Copy the way Executor on the NeXT does it (
- a Mac emulator in software) or the way Quorum does it (The only
- other shipping Mac emulator in software)
-
- BWilliams
-
-