Use fixed point in integer scale routines
Use fixed point in integer scale routines

Speed up scaling by multiplying by 16.16 inverse of denom, instead of dividing per output
pixel.

darcs-hash:20080317164054-9beca-af8371dd5a2a59dc23377ee274d3ac457d7bca9a.gz

nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf