FreeBE/s3/notes.txt

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2024-05-29 19:55:33 +03:00
______ ____ ______ _____ ______
| ____| | _ \| ____| / / _ \| ____|
| |__ _ __ ___ ___| |_) | |__ / / |_| | |__
| __| '__/ _ \/ _ \ _ <| __| / /| _ | __|
| | | | | __/ __/ |_) | |____ / / | | | | |
|_| |_| \___|\___|____/|______/_/ |_| |_|_|
S3 driver implementation notes.
This is a driver for S3 chipsets. It supports 8/15/16/24/32bits color
modes, and has support for accelerated drawing (currently only for BitBlt
between vram).
This code is not portable to any platforms other than DOS+DPMI, because
it uses BIOS calls to set the initial video mode.
Accelerated functions
---------------------
BitBlt - I'm sorry I didn't add more functions yet, but I haven't got a
time and this function was very important for me. I hope it help
you too. If I had a more time a I will send to Allegro new
functions.
Supported Hardware
------------------
I think all earlier S3 cards and some older. I'm sure for Trio64, I
tested it. If somebody have a problem, please send me note and your
ident. number of S3 card.
Thank you, Michal Stencl
Original Allegro code by Shawn Hargreaves (shawn@talula.demon.co.uk)
Improved by Michael Bukin (M.A.Bukin@inp.nsk.su)
Hardware acceleration by Michal Stencl (stenclpmd@ba.telecom.sk)