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Operating System Specific Discussions => Amiga OS => Amiga OS -- Development => Topic started by: bubba on April 14, 2005, 08:37:13 PM

Title: RTG Driver for Grafitti
Post by: bubba on April 14, 2005, 08:37:13 PM

Hi,

Does anyone know where I can find info on how to write a RTG video driver?  I want to assess the feasibility of writing a driver for the Grafitti graphics box.

Thanks!

Title: Re: RTG Driver for Grafitti
Post by: on April 14, 2005, 08:48:11 PM

Quote

bubba wrote:
Hi,

Does anyone know where I can find info on how to write a RTG video driver?  I want to assess the feasibility of writing a driver for the Grafitti graphics box.

Thanks!

Try looking in Picasso96 Developer archive (http://www.picasso96.cogito.de/download/Picasso96/Develop.lha)

Title: Re: RTG Driver for Grafitti
Post by: Crusher on April 14, 2005, 09:02:22 PM

Hope you succeed bubba.
You can surely ask Jens for help.
Individual Computers (http://ami.ga/) :-)

Title: Re: RTG Driver for Grafitti
Post by: Trev on April 14, 2005, 10:09:11 PM

You'll need to conact Alex Kneer (see http://picasso96.home.pages.de/ (http://picasso96.home.pages.de/)) to get the latest closed source driver development kit for Picasso96. The development process is pretty straightforward.

The CyberGraphX site is still offline. I have no idea how to get in touch with the current maintainers.

Trev

Title: Re: RTG Driver for Grafitti
Post by: Matt_H on April 15, 2005, 12:18:30 AM

I'd pay money for such a driver. Best of luck to you. :-)

Title: Re: RTG Driver for Grafitti
Post by: leirbag28 on April 15, 2005, 02:56:17 AM

@bubba

Oh please do!   ahhhhhh a 256 Color WB on an A600......yeeehaaawww!

Title: Re: RTG Driver for Grafitti
Post by: Thomas on April 15, 2005, 09:46:39 AM

Quote

leirbag28 wrote:
Oh please do!   ahhhhhh a 256 Color WB on an A600......yeeehaaawww!

RTG drivers need at least Kickstart 3.0.

Bye,
Thomas

Title: Re: RTG Driver for Grafitti
Post by: Effy on April 15, 2005, 11:09:42 AM

If a RTG driver could be made the it surely would be easy to connect a (almost) gfx card to any Amiga  :lol: I´m sure Jens would love this as it would give his sales a new boost  :lol:

Title: Re: RTG Driver for Grafitti
Post by: Thomas on April 15, 2005, 12:09:18 PM

@Effy, I think the topic here is to write a hardware driver for an existing RTG system like CGX or P96. Writing an entire RTG system yourself will end up in a lot of work without any comparable result.

CGX and P96 are established and have proven compatibility with most Amiga applications. Your own RTG system yet has to do so.

Bye,
Thomas

Title: Re: RTG Driver for Grafitti
Post by: bubba on April 15, 2005, 02:27:35 PM

Thomas is right-on.

My goal would be to implement an 8-bit chunky driver for the grafitti using an existing API, such as P96, with Workbench support as my first milestone.

The grafitti is a really interesting piece of hardware.  The real problem with it is the lack of software support.  An RTG driver would really improve the utility of the little box.

Additionally, an RTG driver might open the door for a second generation Grafitti box.  I'm not much of a hardware engineer, but it seems to me that it should be possible to extend the design of the grafitti to generate 16 or 24 bit graphics with AGA using a similar buffering and remapping scheme.  

-Bubba

Title: Re: RTG Driver for Grafitti
Post by: x56h34 on April 15, 2005, 02:46:01 PM

I would also pay money for such a driver, and think it's a great idea. This would be especially useful for A1200D setups which are sitting in standard original cases.