Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!uupsi!sunic!cs.umu.se!dvljrt
From: dvljrt@cs.umu.se (Joakim Rosqvist)
Newsgroups: comp.sys.amiga.programmer
Subject: Re: Copper list help requested
Keywords: copper
Message-ID: <1991May7.154923.20565@cs.umu.se>
Date: 7 May 91 15:49:23 GMT
References: <1991May7.034044.26814@nntp-server.caltech.edu>
Sender: news@cs.umu.se (News Administrator)
Organization: Dep. of Info.Proc, Umea Univ., Sweden
Lines: 18

In article <1991May7.034044.26814@nntp-server.caltech.edu> nygardm@nntp-server.caltech.edu (Michael T. Nygard) writes:
>I've been trying to go through the Copper list examples in the Hardware
>Reference Manual, but I can't make them work.  Here's the deal.
>
>I'm looking at page 24-5, and the sample copper list.  I wrote a bit of
>wrapper code to just startup, load the copper list, and start it. (It's not
>very friendly...takes over the machine... busy waits, but hey! I'm just
>starting in assembly!)  I know the wrapper code runs OK, but I run into trouble
>with the copper list itself.  
>
>The example needs real bitplanes.  I'd like to use the active view, but I can't
>seem to get a bitplane pointer (GfxBase->ActiView->ViewPort->RasInfo->BitMap->
>Planes is NULL somewhere along the line.)
>
Try to go via IntuitionBase->ActiveScreen Then, 192 bytes in, are the
bitplane pointers!

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