From: lolo <laurent DOT augu AT wanadoo DOT fr>
Newsgroups: comp.os.msdos.djgpp
Subject: problem with bitmaps & optimized palette under allegro
Date: Wed, 15 Dec 1999 08:47:58 +0100
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com


I use Allegro library to to display bitmaps that I previously store in a
.dat file ... my bitmaps are in 256 colors file format but with
optimized palette, in the dat file I store the bitmap and the palette
under my main program I initialise my screen in 16milions colors and
when I try to render my bitmaps with their own optimized palette the
colors are not matching exactly... I've seen in the source code of
allegro that for palette it make an approximation of the color by
reducing the value stored in the palette (so the values are from 0 to
63)... How can I avoid this so I will have full gradients on my screen..
I can of course use 16milions colors bitmaps to avoid palette
manipulations, but I'm short of space....

If anybody know how to manage this .... thank's by advance...