Modify the colormap (SetColor)

The SetColor(D3nfb) routine in the xxxCmap.c file sets an entry in your colormap to the rgb values that are passed to it. Note the following:

• The values passed for red, green, and blue have 16 bits of precision, but most graphics hardware specifies either 6 or 8 bits of precision for 8 bit-per-pixel resolutions. The color values are therefore shifted down to the correct precision for the DACs supported by this driver.

• If your driver could potentially be used for graphics adapters that have different specifications for color values, you should read that value from the grafinfo file, store it in your Screen Private, then call it from the graphics driver code.

• For mono and static color displays, this is basically a noop.