Date: Mon, 21 Mar 94 10:51:01 CST
From: michaels AT vsl DOT com DOT AU (Michael Snoswell)
To: djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: Re: LIBLUG ?


 > >>>Can anyone tell me where to find the LUG libraries?
> >>>
> >>>Does it support coding to GIF?
> >>>
> 
> LIBLUG resides on
> 
> telva.ccu.uniovi.es (156.35.31.31): /uniovi/mathdept/src
> 
> According to the manual it should support GIF.

I've used it for GIF and it works fine. One thing to note is that your image
pointer goes only to the .r component of the bitmap header structure. The g
and b components are not used. I dumped a 640x480x256 screen by setting
bitmap_hdr.r = MyContext.gc_baseaddr. Also, use GrQueryColor to read your
colour map into a struct with 3 bytes fields (in a 256 long array) and set
bitmap_hdr.cmap to point to this. Read the size from the graphic context too
and in a dozen or so lines you have a GIF dump!

cheers
	Michael Snoswell