Re: Where are they now: Atari's Wizards

From: Johan Klockars <>
Date: Mon, 9 Feb 1998 15:06:03 +0100 (MET)

> I have no info on the current status of Fenix. fVDI is starting to get useable.
> Johan showed me a demo and it was very impressive. In mono it was not far behind


> NVDI and then it wasn't even very optimised yet. In colour modes it wasn't very

I'm back from the alps now and in a few days I'll hopefully have figured
out what I was working on before I left...

I don't think there were too many important things left to fix in the
monochrome fVDI device driver and I expect to make a more public release of
fVDI available when they're done.
This will of course not be a complete VDI but, with some minor support from
the original one (or NVDI), it should be enough for many programs.

If anyone happens to have any graphics code they'd be willing to part with,
please get in touch with me.
The fVDI device driver interface currently supports acceleration of
- Line drawing
- Block fill
- Mono to multiplane expansion (vrt_cpyfm, v_gtext)
- Standard blit
so those are the areas I'm most interested in at the moment.

I have already written monochrome versions (sometimes not for all possible
drawing modes) of the above (and line drawing routines for 1/2/4/8 planes),
but my current code might be far from optimum for non-AB040 machines (it's of
course not perfect on the '040 either, but it's been written for that).

> impressive at the moment. Actually it was the slowest I have ever seen. ;-)

Doing everything pixel by pixel will always be very slow, even if it
wouldn't be quite so bad with a chunky screen. I think it's very important
that fVDI can operate on that level, though, since it makes it very easy
to add support for new hardware. Accelerated functions can be bolted on one
at a time when they're finished.
Actually, I'm planning on writing a chunky 8 bit driver (with interrupt
driven conversion to the standard Atari format) as a test/example.

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Received on ma. feb. 09 1998 - 23:10:00 CET

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