Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!well!jef
From: jef@well.sf.ca.us (Jef Poskanzer)
Newsgroups: comp.graphics
Subject: Re: IFF 24 bit images
Message-ID: <22159@well.sf.ca.us>
Date: 13 Dec 90 06:23:42 GMT
References: <1990Dec13.033315.2560@mintaka.lcs.mit.edu>
Reply-To: Jef Poskanzer <jef@well.sf.ca.us>
Organization: Paratheo-Anametamystikhood Of Eris Esoteric, Ada Lovelace Cabal
Lines: 17

In the referenced message, rjc@wookumz.ai.mit.edu (Ray Cromwell) wrote:
}It would be great to have pbm support SHAM/DYnamic Hires modes, but
}I scanline by scanline quantizer would be needed. (since the base palette
}can be changed every scanline.)

It sounds like it would be easy to add support for this stuff to
ilbmtoppm.  Multiple colormaps is no problem, since ppm is not a
colormapped format.  All I need is a precise description of the
formats, and if possible a sample of each.

By the way, I already have a description of RGBN and RGB8 (fror Turbo
Silver), and they're pretty simple, so I'll be adding code to read them.
---
Jef

  Jef Poskanzer  jef@well.sf.ca.us  {ucbvax, apple, hplabs}!well!jef
 The compiler runs / Like a swift-flowing river. / I wait in silence.