[comp.sys.mac.programmer] Optimized Line and LineTo

rick@wam.umd.edu (Frederick E. Brown) (12/09/89)

Does anyone know if the Line and LineTo quickdraw routines are optimized
to ignore any lines that won't intersect the portrect when drawn?  In other
words, are lines clipped and tested for portrect intersection before being
drawn or are they drawn and each pixel individually tested for visibility (
which would seem rather wasteful).  I need some VERY high performance vector
generators and I would prefer using quickdraws standard line routines instead
of implementing my own.  Any comments would be appreciated.  

	rick@wam.umd.edu