stevew@lumpy.cleaver (Steve Wilhelm) (01/28/88)
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 94088bwong@cbnewsc.ATT.COM (bruce.f.wong) (04/27/89)
I need information on Display Postscript. What is it ? References are welcomed. Please reply via e-mail. I don't read these groups.