From:	"Steve Patton" <leaphe AT pemail DOT net>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Loading a palette from a datafile
Date:	28 Nov 1997 17:55:17 GMT
Organization:	AT&T WorldNet Services
Lines:	38
Message-ID:	<65n0i5$q6h@bgtnsc03.worldnet.att.net>
References:	<19971128165900 DOT LAA28332 AT ladder01 DOT news DOT aol DOT com>
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To:	djgpp AT delorie DOT com
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Funkdog32 <funkdog32 AT aol DOT com> wrote in article
<19971128165900 DOT LAA28332 AT ladder01 DOT news DOT aol DOT com>...
> I need help on how to get a palette from a datafile and make it the
palette
> used to draw in the program
> 

Are you referring to the Allegro Library?

If you are then when you use the load_datafile, it is automatically loaded
and you can reference it using the header              file created for
that datafile, and just use that index.
otherwise, it is really up to you.  I suggest reading from a file into an
array, then using that from then on.  (of course,                      you
should load it into the VGA regs by doing

struct PALETTE
 {
  char r;
  char g;
  char b;
} pal[256];

outportb ( 0x3C8, 0 );      // that will index the first color

for ( int a = 0 ; a < 256 ; a++ )
 {
  outportb (0x3C9, pal[a].r );
  outportb ( 0x3C9, pal[a].g );
  outportb ( 0x3C9, pal[a].b );
 }

of course I don't recommend doing that if you are using the Allegro
graphics routine, because it will give you false results when you "grab" a
palette.

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