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MESA Demo (reflect)

by

Giacomo Guidi	<giacomo@gandalf.sssup.it>

Last update 20/03/2003

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This is a simple test demo for the MESA (5.0)

libraries, the low level graphic drivers is

the SVGA (from the SVGAlib)

See drivers/svga/readme for supported cards

You need a test.png file present in the

same directory of the demo. Remember that

the file system support only a DOS FAT16 fs.

The PNGlib will load this file and it

will be used as a texture.

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The demo is composed by:

MAKEFILE     The makefile used to compile the application

README.TXT   This file

INITFILE.C   The init file (with fs initialization)

MESAREF.C    The MESA Demo

TEST.PNG     The PNG texture image

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- To specify your card change the line

#define CARD <driver name>

- The demo calls the grx and off-screen Mesa functions.

The resolution must be 16 bitsperpixel (64K colors) and

the graphic access mode must be linear.

- There are two buffers

	The video buffer (video_buf)

	The virtual buffer (rgb_565_buf)

	copy_videomem_16to16 links these buffers

- If the texture load fails, sys_end() is called