Field Name             Bits   Default Description
GEOMETRY_ROUND         1:0    0x0     Trunc (0) or round to nearest (1) for geometry (XY).
                                      POSSIBLE VALUES:
                                      00 - Round to trunc
                                      01 - Round to nearest
COLOR_ROUND            3:2    0x0     When set, FP32 to FP20 using round to nearest;
                                      otherwise trunc
                                      POSSIBLE VALUES:
                                      00 - Round to trunc
                                      01 - Round to nearest
RGB_CLAMP              4      0x0     Specifies SPFP color clamp range of [0,1] or FP20 for RGB.
                                      POSSIBLE VALUES:
                                      00 - Clamp to [0,1.0] for RGB
                                      01 - RGB is FP20
ALPHA_CLAMP            5      0x0     Specifies SPFP alpha clamp range of [0,1] or FP20.
                                      POSSIBLE VALUES:
                                      00 - Clamp to [0,1.0] for Alpha
                                      01 - Alpha is FP20
GEOMETRY_MASK          9:6    0x0     4b negative polarity mask for subpixel precision.
                                      Inverted version gets ANDed with subpixel X, Y masks.