Antialiasing Glyph onto Image

[John Houston]

Hi,

Does anyone know of an efficient algorithm
for rendering antialiased pixmap glyphs onto
a background image ( multi colors) ?

I am using:

(pen.red( x) + background.red( 1-x)) /x

where x is the number in the glyph pixmap ( 0-4),
for each color component

It works ok, but not good.

Thanks in advance !!