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 94088
bwong@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.