On Tue, 2007-04-03 at 03:46 -0400, David Turner wrote: > > My question again. Why is it better to pass lsb/rsb knowledge to higher > > level than to teach freetype to render a single word and provide an > > interface for that? > > There are several reasons not to do that in FreeType: > > - the font engine doesn't do caching, so performance is going to suck > - sophisticated text layout requires precise knowledge of these details anyway > - what about all sophisticated effects like hollowing, texturing, embossing > and other stuff like that. > > So in short, FreeType is neither a text layout or graphics library, and > shouldn't > try to do this itself. > > > Do we really need to replicate the same code in every application? > > > In every library that does its own text layout, yes !
Hi David, I'm not sure if I understand what these lsb/rsb stuff is. Is there anything here that cairo/pango should be doing that it's not already? cheers behdad > An alternative would be to hack FT_Get_Kerning to return "adjusted" values, > but > this would require implementing a rather complicated caching scheme within the > engine if we don't want performance to suck horribly. Moreover, this is likely > to break some libraries... > > - David -- behdad http://behdad.org/ "Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety." -- Benjamin Franklin, 1759 _______________________________________________ Freetype-devel mailing list Freetype-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype-devel
