This interface defines the set of calls that pipeline objects
can use to pass on responsibility for filling various basic
geometric figures defined by explicit integer coordinates.
Typically this interface will be used for communication when
the coordinates of the rendering have been narrowed down to
actual device pixels, or for communication of untransformed
coordinates when the coordinates were specified using integers.
This interface does not cover all of the rendering calls that
are possible in Graphics since many of the rendering calls can
be transformed into one or more variants of these calls.