8 bits on Matrix-Shaper profiles...done.
[625 tics, 0.625 sec, 25.6 Mpixels/sec.]
lcms is transforming full spectrum in 8 bits...done.
[3984 tics, 3.984 sec, 4.01606 Mpixels/sec.]
Thats a boost of about X 6.3. Please note that applies only to 8 bit matrix-shaper to matrix-shaper transforms, so RGB only! When primaries of both profiles are same, the performance is even better, it reaches about 30 Megapixel/second. I will put all this code available this weekend.