oster@ucblapis.berkeley.edu (David Phillip Oster) (03/31/86)
Postscript is a programming language. The laserPrep file that is downloaded by the laserwriter driver defines functions so that it can send a high level description of the quickdraw calls, rather than labourously spelling out the details on AplleTalk each time a Quickdraw command happens. There is exactly one exception: the particular smoothing algorithm Apple uses is proprietary to Apple, so, rather than sending the source code to the LaserWriter they use one undocumented postscript command to define a function as pure 8000 machine codee. [SUMEX]<INFO-MAC> has a copy of the laserprep file, with comments inserted by Brian Reid. My source for most of the above information is Apple itself: I went to a seminar for developers on AppleTalk and the LaserWriter. I have also been to Adobe. --- David Phillip Oster ----------------------- ``What do you look like when you aren't visualizing?'' Arpa: oster@lapis.berkeley.edu Uucp: ucbvax!ucblapis!oster