Dashed line generation desuckified!  Should now run much faster on some architectures.  The previous loop used only conditionals, assignments, and integer adds at the cost of a huge number of iterations (basically testing each pixel).  The new method draws directly to the desired end of dash. Contributed by Wesley Ebisuzaki.
Dashed line generation desuckified!  Should now run much faster on some
architectures.  The previous loop used only conditionals, assignments, and
integer adds at the cost of a huge number of iterations (basically testing
each pixel).  The new method draws directly to the desired end of dash.
Contributed by Wesley Ebisuzaki.

svn path=/trunk/; revision=682

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