[Gimp-print-devel] Tonight's stuff

[Robert L K. <rl...@al...>]

I've checked in some stuff that might improve print quality at 1440
dpi (reduced grain).  It should improve print quality for the
740/900/750/1200 printers in all softweave modes.

The new stuff may be flaky if density is set too high, and it seems to
be a bit erratic at 1440x720 two-pass.  Basically, I've changed the
way it does oversampling; previously it simply dropped every other
dot, but what it does now is reduce density by 1/2.  This isn't quite
the same thing (particularly on the 6-color printers), due to some
nonlinear stuff going on in there.

As for the new printers, the code was doing its
eliminate-every-other-dot thing in 720 dpi softweave, due to the fact
that the printed spacing is 1/360".  That's simply a bug.  The new
code may, however, improve handling of variable dot size printers in
general, since the dots might be small enough to usefully achieve
1/1440" spacing.

Karl tells me that the new print.c won't compile even against gimp
1.1.11.  That's bad.  I'm going to leave it there for now, but
probably pull it tomorrow night or so.  Try to compile it, and let me
know the results and what gimp version you're running.

-- 
Robert Krawitz <rl...@al...>      http://www.tiac.net/users/rlk/

Tall Clubs International  --  http://www.tall.org/ or 1-888-IM-TALL-2
Member of the League for Programming Freedom -- mail lp...@uu...
Project lead for The Gimp Print --  http://gimp-print.sourceforge.net

"Linux doesn't dictate how I work, I dictate how Linux works."
--Eric Crampton