From:	"Andrei 'old boy' Ellman" <ellman AT xs4all DOT nl>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Allegro BITMAP
Date:	Wed, 22 Oct 1997 03:02:56 +0100
Organization:	Heslington Toast Parlour, Yorkshire
Message-ID:	<344D5ED0.5F04B683@xs4all.nl>
References:	<62dp2e$72b AT bgtnsc02 DOT worldnet DOT att DOT net> <344AC0B5 DOT 7CC8 AT cam DOT org>
NNTP-Posting-Host:	asd17-12.dial.xs4all.nl
Mime-Version:	1.0
Lines:	38
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Vic wrote:
> 
> JASON MEEHAN wrote:
> >
> > Ok, heres what I'm trying to do. I need to convert a different type of
> > bitmap to allegros type so that I can use allegros graphic routines.
> >
> > unsigned char *oldbitmap;   /*this points to graphic data in 8x8tiles*/
> > BITMAP *newbitmap;   /**** allegro bitmap type ******/
> > ....
> > ......
> > newbitmap =create_bitmap(8,8);
> >
> > newbitmap.*dat=*oldbitmap;
> the bitmap structure contains the data as
> unsigned char line[x][y];
> so you say
> 
> newbitmap->line[0]=oldbitmap;

This only sets the first line of your BITMAP to the first line of thr
oldbitmap. You need to set the other lines as well as the data pointer.

newbitmap->line[0]=oldbitmap;
newbitmap->line[1]=oldbitmap+8;
[...]
newbitmap->line[6]=oldbitmap+48;
newbitmap->line[7]=oldbitmap+56;

newbitmap->dat=oldbitmap;

AE.

-- 
Andrei Ellman - URL: http://www.xs4all.nl/~ellman/ae-a - ae1 AT york DOT ac DOT uk
"All I wanna do is have some fun     :-)     || ae-a AT minster DOT york DOT ac DOT uk
 I've got the feeling I'm not the only one"  || mailto:ellman AT xs4all DOT nl
     -- Sheryl Crow      :-)    ||       It's what you make of it.

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