2003.04.03 13:03 "8bit to 12bit", by NTC Alpha

2003.04.04 10:50 "RE: 8bit to 12bit", by John Carter

how would 12bit data be stored.
is it 4 bits per colour ie 4bit for red, 4 for green 4 for blue?.
does it also mean that there are 2 pixels every 3 bytes?
is there a color_map
if so will it need to be updated?