Monochrome rendering?

[Odddity]

I guess my question is how to implement the effects of FT_LOAD_MONOCHROME and FT_LOAD_TARGET_MONO when loading/rendering glyph outlines?

From what I understand, the difference with monochrome load/rendering is not only drawing fully opaque (eg. using a MonochromePainter to wrap the AlphaSrcPainter) -- but even the algorithm that decides how to render the glyph. Because just rendering with the same hinting/metrics/whatever but opaque, instead of with antialiasing, doesn't look right. Unfortunately I don't really understand the details.

So... any pointers? Where do I begin?