Article View: comp.windows.misc
Article #799Re: Display PostScript
From: Steve Wilhelm
Date: Wed, 27 Jan 1988 20:43
Date: Wed, 27 Jan 1988 20:43
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From what I understand, based on a brief look at an alpha release
Adobe Display PostScript technical document, Display Postscript is
supposed to be embedded in a window system for display only (thus
the name).
---------------------------------------
| application |
| --------------------------| |
| | window system | |
| | ------------- | |
| | | DisplayPS | | |
| | | | | |
| | | | | |
==========================================
Kernel
In theory, Adobe knows how to display text and 2D graphics better
(read faster) than anyone writing a window system. I saw a demonstration
of Display Postscript rendering pages of variable width font text at
"scrolling" speeds.
However, you will still need a window system to handle mouse keyboard
I/O and all the other window system functions.
NeWS could benefit from Display PostScript. I imagine that Sun could
"plug in" Display PostScript easily and receive the performance increase.
But, each NeWS server would require an Adobe PostScript license,
increasing NeWS's price as well.
X could also benefit from Display PostScript. Without redesigning
the protocol, there would be quite a bit of overhead converting X protocol
to PostScript, but X desparately needs the performance increase.
Incorporating Display PostScript would have to be done on a vender by
vender basis (venders note: this could be the discriminating
difference between your X and anyone elses X).
If the powers that be could redesign the X protocol to take advantage of
Postscript, the overhead would decrease and venders would be more
inclined to embed Display PostScript in their X server (not to mention
all the benefits of using a device independent rendering paradigm).
Note: This is my opinion, not that of Analog Design Tools, Inc.
------------------------------------------------------------
Steve Wilhelm, Software Engineer
Analog Design Tools ...{ucbvax!sun!sunncal, hplabs}!analog!stevew
Sunnyvale, California 94088
--
------------------------------------------------------------
Steve Wilhelm, Software Engineer
Analog Design Tools ...{ucbvax!sun!sunncal, hplabs}!analog!stevew
Sunnyvale, California 94088
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!rutgers!sri-spam!ames!pasteur!ucbvax!hplabs!analog!lumpy!stevew From: stevew@lumpy.cleaver (Steve Wilhelm) Newsgroups: comp.windows.misc Subject: Re: Display PostScript Keywords: Display PostScript window systems Message-ID: <673@ward.lumpy.cleaver> Date: 27 Jan 88 20:43:44 GMT Organization: Analog Design Tools Inc., Palo Alto, CA. Lines: 52