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From: lehors@modja.inria.fr (Arnaud Le Hors)
Newsgroups: comp.windows.x
Subject: How do pixels must be packed?
Keywords: pixels
Message-ID: <1990Aug27.185829@modja.inria.fr>
Date: 28 Aug 90 16:22:29 GMT
Sender: news@mirsa.inria.fr
Reply-To: lehors@modja.inria.fr (Arnaud Le Hors)
Organization: Koala Project, Bull Research France
Lines: 19

Trying to send a pixmap to a server on a monochrome display (visual->class ==
StaticGray && visual->depth == 1) I've been looking around and found out in the
source of xloadimage written by Jim Frost the following comment:

    /* if the destination depth is not a multiple of 8, then we send each
     * plane as a bitmap because otherwise we would have to pack the pixel
     * data and the XImage format is pretty vague about how that should
     * be done.  this is not as fast as it would be if it were packed but
     * it should be a lot more portable and only slightly slower.
     */

Isn't there really no standard way to do this ? I'll appreciate any hint,
thanks in advance.
--
   Arnaud LE HORS
   BULL Research FRANCE -- Koala Project   |    Email : lehors@mirsa.inria.fr
         Inria - Sophia Antipolis          |    Phone : (33) 93 65 77 71
         2004, Route des Lucioles          |    Telex :      97 00 50 F
         06565 Valbonne CEDEX  France      |    Fax   : (33) 93 65 77 66