chickadee » macaw » low-rgb-add!

low-rgb-add! float*_in1 float*_in2 float*_outprocedure
low-rgb8-add! uchar*_in1 uchar*_in2 uchar*_outprocedure
low-hsl-add! float*_in1 float*_in2 float*_outprocedure

Low-level versions of rgb-add etc.