Obtains values that are needed to calculate blue pixel values in TrueColor
and DirectColor. The "mask" is the significant bits within the pixel.
The "shift" is the number of bits left we must shift a primary for it
to be in position (according to the "mask"). Finally, "precision" refers
to how much precision the pixel value contains for a particular primary.
Since 2.22
Obtains values that are needed to calculate blue pixel values in TrueColor and DirectColor. The "mask" is the significant bits within the pixel. The "shift" is the number of bits left we must shift a primary for it to be in position (according to the "mask"). Finally, "precision" refers to how much precision the pixel value contains for a particular primary. Since 2.22