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- Path: pravda.aa.msen.com!not-for-mail
- From: crandall@mail.msen.com (Chad Randall)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: Too system friendly?
- Date: 3 Apr 1996 13:13:55 GMT
- Organization: Msen, Inc. -- Ann Arbor, MI.
- Message-ID: <4jttij$6c6@pravda.aa.msen.com>
- References: <4jpq5f$i9g@toad.stack.urc.tue.nl> <4js7lr$njd@taiwan.informatik.uni-rostock.de> <4jsbrb$clt@toad.stack.urc.tue.nl>
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-
- Jaco Schoonen (jaco@stack.urc.tue.nl) wrote:
- : Gunther Nikl (gnikl@informatik.uni-rostock.de) wrote:
- : : Jaco Schoonen (jaco@stack.urc.tue.nl) wrote:
- : : > the CPU. The only thing I do which has something to do with graphics is the
- : : > WritePixelLine8(), but that's not supposed to change it's source-data is it?
- :
- : : I don't have the autodocs handy but I think WritePixelLine8() clears your
- : : buffer.
- :
- : I do have them handy and they don't mention that the buffer is cleared. I
- : checked it a little closer today and the buffer is indeed cleared. It's
- : *only* cleared if I write to an aga/ecs screen. When writing to a
- : CyberGraphX-screen, the contents of the buffer remain the same.
- : This is what I expected after reading the documentation.
- :
- : If there's nothing to do about it, what are my options of fixing this?
- : Copying the line I want to display to another buffer and writing that one?
- : Or something nicer?
-
- I thought it was only WritePixelArray8() that does this, not WritePixelLine8()...
-
- Anyways, there is a patch called "PatchWPA8" that fixes it so that the source
- is not damaged. If worse comes to worse, you could include that archive with
- your program. It's only 4.5K archived and is freeware.
-