From: "OmniMeta" <meta AT abacom DOT com>
Newsgroups: comp.os.msdos.djgpp
References: <19990820162609 DOT 24654 DOT 00000345 AT ng-ch1 DOT aol DOT com>
Subject: Re: HELP NEEDED ON ALLEGRO!!
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Message-ID: <Kndw3.323$Os5.50957@wagner.videotron.net>
Date: Mon, 23 Aug 1999 11:03:19 -0300
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com


Orvbongat <orvbongat AT aol DOT com> a écrit dans le message :
19990820162609 DOT 24654 DOT 00000345 AT ng-ch1 DOT aol DOT com...
> Here's what i do:
>
> BITMAP *b;
>
> b = create_bitmap(32,32);
>
> for (y = 0; y < 32; y++)
>    for (x = 0; x < 32; x++)
>        b->line[y][x] = 12;
>
> draw_sprite(screen,b,0,0);
>
> BOOM it crashes after that. Can anyone help???

On what video mode are you ?
Did you set the video mode and color depth using
set_color_depth( [8] [15] [16] [24] [32] )
set_gfx_mode(640, 480, 0, 0);

Your code should work only with 8 bits color depth.
If you are using 15 16 24 or 32 bits color depth, it will not work.

// using 24 bits color depth

for (y = 0; y < 32*3; y++)
   for (x = 0; x < 32*3; x++)
       b->line[y][x] = 12;            // 8 bits
       b->line[y][++x] = 12;        // 8 bits
       b->line[y][++x] = 12;        // 8 bits
        // total 24 bits