[Devel]Oversampling and rounding TrueType glyphs

[Keith Packard]

I'm working on a system which requires that I oversample glyphs by a 
factor of 6 along one axis.  The problem is I can't figure out how to get 
the rasterizer to snap coordinates to the original grid, rather than at 
1/6th pixel intervals.  The resulting glyphs lose much of their clarity as 
a result.  Examples can be viewed at:

        http://www.xfree86.org/~keithp/render/clear.html

The chromatic abberations along the edges of glyphs are largely a result 
of this problem.  Of course, the images are almost unviewable without a 
digital LCD monitor (like on a laptop).

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