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- From: jalegre@tsp.med.umn.edu (John Alegre)
- Subject: Video on a NeXT?
- Message-ID: <C0pInn.CpJ@news2.cis.umn.edu>
- Sender: news@news2.cis.umn.edu (Usenet News Administration)
- Nntp-Posting-Host: tsp.med.umn.edu
- Organization: University of Minnesota
- Date: Mon, 11 Jan 1993 20:38:11 GMT
- Lines: 45
-
- I am looking for genersl opionion on the best way to
- display Video Frames in a NeXT Window.
-
- At this stage of the game we have the options of
- receiving the frames via DMA from the SCSI port as
- either:
-
- 1. 16 bit/pixel frames. That would be 5 bits Red,
- 5 Blue, and 5 Green with a garbage bit, set to
- 0
-
- 2. 32 bit/pixel frame. That would be 8 bits Red,
- 8 Green, 8 Blue, with 8 garbage bits set to 0.
-
- The frame would be just an array of pixel data in
- one of the above formats, starting at the upper
- left corner of a quarter or half CIF image and
- continuing till the last pixel of that frame.
- The next DMA would bee next frame, etc.
-
- What is the general opinion of the best way to
- get such frames on the screen in the context of
- NeXT objects.
-
- We are looking at both NXImage and NXLiveVideoView
- objects as well as the possibility of writing
- directly to screen buffer. The scheme that has
- worked well on the Macintosh is using copyBits on
- off screen bit maps.
-
- All comments welcome.
-
- Thank you
- ---
- John N. Alegre
- Andante Systems
- VideoLabs Inc.
-
- #############################################################
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- # jdev@andante.mn.org |
- # alegrej@andante.mn.org | If you plant ice,
- # jalegre@lenti.med.umn.edu | you're gonna harvest wind!
- # alegrej@libros.andante.mn.org | Hunter/Garcia
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