From:	Paul Richards <Paul AT dunvegan1 DOT demon DOT co DOT uk>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Allegro - 800x600 16bit doesn't work
Date:	Wed, 21 Oct 1998 20:20:21 +0100
Organization:	Paul's house
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To:	djgpp AT delorie DOT com
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I can't get Allegro to go into 800 by 600 with 16 bit colour on my 1Mb
Trident AGI 9440 PCI.  I've tried GFX_AUTODETECT, GFX_VESA1 and
GFX_TRIDENT but none of them work.  16bit colour works in 640 by 480 and
8bit colour is fine in 800 by 600.

When I try to put it into 800 by 600 with 16bit colour the bottom 1/3 of
the screen goes mashed up and as soon as I do a putpixel it crashes.

I'm running DJGPP from a DOS box in Win98+ and here's my code:

allegro_init();
install_keyboard();
set_color_depth(16);
set_gfx_mode(GFX_AUTODETECT, 800,600,0,0);

then a simple

putpixel(screen, xscr,yscr,255);

makes it crash.
-- 
Paul Richards
EMAIL           paul AT dunvegan1 DOT demon DOT co DOT uk
HTTP            www.dunvegan1.demon.co.uk/paul  <- Still under construction
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