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- Path: sparky!uunet!ogicse!news.u.washington.edu!news
- From: wjs@blorf.cpac.washington.edu (William Shipley)
- Newsgroups: comp.sys.next.programmer
- Subject: Re: Need fast graphics (Don't go to the Dark Side)
- Message-ID: <1992Sep8.173541.12171@u.washington.edu>
- Date: 8 Sep 92 17:35:41 GMT
- Article-I.D.: u.1992Sep8.173541.12171
- References: <1992Sep7.163759.23200@ifi.unizh.ch>
- Sender: news@u.washington.edu (USENET News System)
- Organization: University of Washington
- Lines: 22
-
- gubser urs writes:
- > Is it possible to draw directly into a Windows view without any
- > SystemCalls ?
-
- Possible, but a Bad Idea. Consider that there are already NeXTstation
- monochromes, turbos, colors, color turbos, and NeXTdimensions, and that they've
- announced NS486 and it'll have to run on a variety of video cards. How many
- times do you want to rewrite your display code?
-
- 3.0 provides some fast ways to blit an image onto the screen out of line, and
- if your data is set up just right you can supposedly slam 400x400 at 37-40ms on
- a 25Mhz NeXTstation Color.
-
- So, draw in an unpacked and correctly aligned off-screen buffer, then slam your
- data into a retained window. You're rocking. The total win is that on other
- architectures graphics will just be slower, rather than failing entirely.
-
- Check the document
- /NextLibrary/Documentation/NextDev/ReleaseNotes/WindowServer.rtf for details,
- that's all I know.
-
- -W
-