On 30 Oct 2011, at 07:31, Werner LEMBERG wrote:
Very interesting! Among other things, ttfautohint's `prep' table is
used to set up some elements of the storage area.
interpreter resets this area while rendering a new glyph?
I wonder what the difference is between the way the Apple interpreter (Quartz) deals with prep commands in iOS (shredded fonts) compared to the way Quartz interprets a prep table in OSX (not shredded fonts)?
And also, what's happening in the interpretation of a fonts prep table under Adobe's OSX versions of inDesign, Illustrator etc, that the Adobe app overrrides the OSX system interpreter.
Unfortunately, the TTF reference manual of Apple says nothing about
the scope of storage area elements.