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- Newsgroups: comp.os.os2.misc
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!darwin.sura.net!Sirius.dfn.de!chx400!josef!erzberg
- From: erzberg@ifi.unizh.ch (Martin Erzberger)
- Subject: Re: 256 Color?
- Message-ID: <1992Nov9.074249.3838@ifi.unizh.ch>
- Sender: erzberg@ifi.unizh.ch (Martin Erzberger)
- Organization: University of Zurich, Department of Computer Science
- References: <1992Nov6.130917.1@opie.bgsu.edu> <1992Nov6.194745.17183@husc3.harvard.edu> <1992Nov7.112100.2537@dragon.acadiau.ca>
- Date: Mon, 9 Nov 92 07:42:49 GMT
- Lines: 24
-
-
- In article <1992Nov7.112100.2537@dragon.acadiau.ca>, 880506s@dragon.acadiau.ca (James R. Skinner) writes:
- > gouvea@zariski.harvard.edu (Fernando Gouvea) writes:
- >
- > >I tried imshow.exe with the Tseng 1024X768X256 drivers, and the palette
- > >seems all messed up. The bitmaps don't like one bit as they do if I put
- > >them on the desktop background...
- >
- > Ditto for the 8514 drivers...
- >
- The 8514/A driver doesn't have a palette manager implemented. IMSHOW
- tries to load the picture the 'old way', i.e. with the default 256
- physical colors of the device driver. The colors get mapped on a
- 'best fit' base. So what one should get on a 8514 (and what I do get
- on my 8514 at home) is not a completely messed up picture, but a
- picture with looks in a way similiar to the original one.
- If the picture is completely messed up (i.e. every pixel seems to
- be in a wrong color), then the picture gets loaded as if it could be
- realized, but then somehow the 'realize palette' step fails. The pixels
- then point somewhere into the default physical palette and the picture
- looks completely wrong. Since I don't have a Tseng video card, it is
- difficult to debug this problem.
- Regards, Martin Erzberger
-
-