Xref:	news-dnh.mv.net comp.os.msdos.djgpp:4542
From:	Shawn Hargreaves <slh100 AT york DOT ac DOT uk>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Need testers for Allegro 2.0
Date:	Thu, 18 Jan 1996 11:24:50 +0000
Organization:	The University of York, UK
Lines:	29
Message-ID:	<Pine.SGI.3.91.960118091345.363A-100000@tower.york.ac.uk>
NNTP-Posting-Host:	tower.york.ac.uk
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Hi everyone! Version 2.0 of my Allegro library is about 60/70% done. This a 
game programming library for djgpp which provides a range of graphics 
primitives, low level access to the mouse, keyboard and millisecond 
timers, file compression, fixed point maths, and a set of simple GUI 
routines.

The major new feature in version 2.0 is support for svga graphics modes 
(the original version only worked in mode 13h). So far I have written a 
driver that uses real mode VESA bank switching functions, and one that 
programs my Tseng ET4000 directly at register level. And the real mode 
VESA calls are a killer as far as speed is concerned. On some simple 
tests the ET4000 driver goes over twice as fast as the VESA one. So, I 
would like to add register level support for more cards (it is generally 
only a matter of a couple of port writes). To do that, though, I need 
some kind people who would be willing to test it for me. So, if you are 
interested in helping with this, please email me (slh100 AT tower DOT york DOT ac DOT uk) 
and let me know what sort of video card you have....

Also, I would really like to add support for VESA 2.0 linear 
framebuffers, but my card doesn't support this. If anyone had a card 
capable of using a linear buffer, or even better, some example code that 
uses this feature, I would _really_ like to hear from you :-)


Shawn Hargreaves                        If God is omnipotent, can he make a
http://www.york.ac.uk/~slh100/          rock so heavy that he cannot lift it?

- Raw text -