Display Driver Source Code

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Article #3348

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#3348

From: Kenneth Porter
Date: Fri, 08 Jan 1993 02:24

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I had heard that source code to some of the presentation drivers was
available. I have a Definicon CAD-RACE card based on the Tseng 4000
that the SP doesn't recognize. It's capable of 1024x768x256, and has
an Edsun CEG DAC (does anti-aliasing). The manufacturer isn't
supplying OS/2 support, so I'd just like to modify an existing driver
to do the job.

Am I correct in assuming that the main device-specific functions are
mode-switching, VRAM access (ie. mapping pixel coordinates to VRAM
addresses), and state-saving for DOS sessions?

How do I get a copy of the Tseng driver source? I'll sign a
non-disclosure if appropriate.

Technical Details

Message-ID: <C0IK1D.328@well.sf.ca.us>

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Newsgroups: comp.os.os2.programmer
Path: arc1-ca.pugleaf.net!sparky!uunet!well!shiva
From: shiva@well.sf.ca.us (Kenneth Porter)
Subject: Display Driver Source Code
Message-ID: <C0IK1D.328@well.sf.ca.us>
Sender: news@well.sf.ca.us
Organization: Whole Earth 'Lectronic Link
Date: Fri, 8 Jan 1993 02:24:49 GMT
Lines: 13