Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!bellcore!uunet!cbmvax!cbmehq!cbmfra!swinjm!forgeas
From: forgeas@swinjm.UUCP (Jean-Michel Forgeas)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Help with DrawImage +
Message-ID: <187aedde.ARN0b38@swinjm.UUCP>
Date: 6 Jan 91 13:57:50 GMT
References: <18789829.ARN020d@aquarium.buffalo.ny.us>
Reply-To: forgeas@swinjm.UUCP (Jean-Michel Forgeas)
Followup-To: comp.sys.amiga.tech
Organization: The Software Winery
Lines: 34

In article <18789829.ARN020d@aquarium.buffalo.ny.us>, David R. Tyler writes:

>  Hello all!
>   [...]
>   but, when i changed to a CUSTOMSCREEN (it was on the WBSCREEN)
>   with 3 planes (8 colours), i get garbage when i attempt to
>   drawimage into the last color (color 7)...

Are you sure your PlanePick value does represent the exact number
of planes stored in your image data ?

>  struct Image hex =
>   {
>    0,0             - leftedge, topedge
>    32,9,2    - width, height, depth
>    HEXA,7,0, - ImageData, PlanePick, PlaneOnOff
>    NULL      - NextImage
>    };

Your PlanePick value of 7 (00000111) means that HEXA has 3 planes...

> my image data is enough for 2 planes, but when i change depth to 1, and

...but HEXA has only 2 planes. So the third plane to be drawn is the
memory following the second plane. Who knows what it is ?

This can be one of your problems, but I think you have others and
I need a piece of your code to understand more.
--
                                     \___/
Jean-Michel Forgeas                   \-/
cbmvax!cbmehq!cbmfra!swinjm!forgeas    |    The Software Winery
                                      -^-
                           And, where is the universe ?