Mac Rasterops Drivers

[Roger Holmes]

On 21 Apr, 2007, at 09:24, cctalk-request at classiccmp.org wrote:

> Message: 23
> Date: Sat, 21 Apr 2007 01:46:53 -0500
> From: Jeff Walther <trag at io.com>

> If any of your documentation is related to hardware design as opposed
> to user guides and user manuals I would be very grateful if I could
> get a look at it.

You probably need 'Designing Cards and Drivers', part of the Inside  
Macintosh series.

> One specific thing I've been wondering about is how one implements
> quickdraw acceleration.   Was there an Apple guide to doing this in
> some of the developer materials, or was it something which each
> company worked  out on their own -- deciding which Quickdraw calls to
> trap and send to the video card?

Though I've never done it for hardware acceleration purposes, I would  
think you just need to override some of the standard routines in the  
QuickDraw bottleneck. StdLine, StdRect, StrRRect, StdOval, StdPoly,  
StdBits, StdRegion and StdText. The ones you don't need are for  
reading/writing pictures and picture comments. I have used these to  
capture data for pen plotters, raster printers and into applications.  
Alas on OS-X we now need to be able to read PDF - a much more  
complicated format and proprietary to Adobe, though with the great  
benefit of platform independence for files.

Roger Holmes
Author/Part Author/Maintainer of MacPlot, MacPalette, MacDraft,  
MacInteriors, Graphic pack, XRip, 3DWorld, Microspot Interiors,  
Microspot Modeller etc.