mpv/drivers
diego 2b6af2000b Add multiple inclusion guards to all header files that lack them.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@25581 b3059339-0415-0410-9bf9-f77b7e298cf2
2008-01-01 21:35:58 +00:00
..
3dfx.h Add multiple inclusion guards to all header files that lack them. 2008-01-01 21:35:58 +00:00
Makefile Build test programs with standard CFLAGS and use implicit rules. 2007-08-29 09:19:07 +00:00
README.Ati
README.Matrox
generic_math.h Add explanatory comments to the #endif part of multiple inclusion guards. 2007-12-31 16:15:50 +00:00
hacking.ati
mga_vid.c
mga_vid.h Replace multiple inclusion guards with leading underscores by default names. 2008-01-01 20:21:20 +00:00
mga_vid_test.c warning fixes: 2007-08-31 11:57:57 +00:00
radeon.h Replace multiple inclusion guards with leading underscores by default names. 2008-01-01 20:21:20 +00:00
radeon_vid.c
radeon_vid.h Replace multiple inclusion guards with leading underscores by default names. 2008-01-01 20:21:20 +00:00
tdfx_vid.c warning fix: 2007-08-29 09:21:06 +00:00
tdfx_vid.h Add multiple inclusion guards to all header files that lack them. 2008-01-01 21:35:58 +00:00
tdfx_vid_test.c warning fixes: 2007-08-31 11:57:57 +00:00

README.Matrox

The code in this directory is the old mga_vid driver for Linux kernels
prior to 2.6. It does _not_ compile for version 2.6.x.

For Linux kernel 2.6.x please get the newest version of the 2.6 port from
http://attila.kinali.ch/mga/


mga_vid  -  MGA G200/G400 YUV Overlay kernel module

	Author:
		Aaron Holtzman <aholtzma@ess.engr.uvic.ca>, Oct 1999

	Contributions by:
		Fredrik Vraalsen <vraalsen@cs.uiuc.edu>
		Alan Cox <alan@lxorguk.ukuu.org.uk>

                       WARNING  -----  WARNING

This code messes with your video card and your X server. It will probably
lock up your box, format your hard drive, and cause your brand new G400
MAX to spout 6 inch flames. You have been warned.

                       WARNING  -----  WARNING

What does this code do?

	 mga_vid is a kernel module that utilitizes the Matrox G200/G400/G550
	 video scaler/overlay unit to perform YUV->RGB colorspace conversion
	 and arbitrary video scaling.

	 mga_vid is also a monster hack.

How does mga_vid work?

	This kernel module sets up the BES (backend scaler) with appropriate
	values based on parameters supplied via ioctl. It also maps a chunk of
	video memory into userspace via mmap. This memory is stolen from X
	(which may decide to write to it later). The application can then write
	image data directly to the framebuffer (if it knows the right padding,
	etc).


How do I know if mga_vid works on my system?

	There is a test application called mga_vid_test. This test code should
	draw some nice 256x256 images for you if all is working well.