Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!munnari.oz.au!bruce!monu1!vaxc!chm114u
From: chm114u@vaxc.cc.monash.edu.au
Newsgroups: comp.sys.apple2
Subject: GS -> MAC Sound File Conversions
Message-ID: <38973.26c1499f@vaxc.cc.monash.edu.au>
Date: 9 Aug 90 01:31:43 GMT
References: <434@fawlty.towers.oz>
Organization: Computer Centre, Monash University, Australia
Lines: 45

In article <434@fawlty.towers.oz>, johnmac@fawlty.towers.oz (John MacLean) writes:
> In article <1990Aug1.231338.7751@laguna.ccsf.caltech.edu> toddpw@tybalt.caltech.edu (Todd P. Whitesel) writes:
>>About the palette reversals (essentially, GET RID OF THEM!):
>>I feel very strongly that a standard format should NOT reverse or convolute
>>the palette data in ANY way whatsoever, in spite of the 'all the existing
>>formats do it' reasoning.
>>
>>Todd Whitesel
>>toddpw @ tybalt.caltech.edu
> 
> Todd,
> 	you'll be happy to know that palettes are not reversed in all the
> existing formats as I was led to believe.
> I only recievied my first external source of 3200 pics a few days ago, and
> they were totally incompatible with the pics I had created.
> 
> It is also NOT true that the palettes themselves are reversed.
> 
> This all comes from the fact that most source going around uses palette $F
> for scanline 0, $E for palette 1 etc, etc.
> Most source also puts the last color in each palette into memory first.
> 
> The palette data in all formats is:
> 
> +$00 Palette for scanline 0:  color0 color1 color2 ..... color F
> +$20 Palette for scanline 1:  ..........
> ............
> +$1E0 Palette for scanline 199: color0 ..... color F
> 
> Just as I and everyone else would have initially hoped.
> 
> As for the standard form in APF. This seems to imply that we might as well
> use the 'PALETTE' chunk.
> Any APF file with a MAIN and a PALETTE with the number of scanlines ==
> the number of palettes is a multi palette picture.
> 
> I'll stick with Brooks format for uncompressed - but change the filetype.
> Again - pass this on for anyone interested.
> 
> John MacLean.
> -- 
> This net: johnmac@fawlty.towers.oz.au                   Phone: +61 2 427 2999
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