Initializes a color using the (a,y,u,v) values.
#define D3DCOLOR_AYUV(a,y,u,v) D3DCOLOR_ARGB(a,y,u,v)
Returns the D3DCOLOR value that corresponds to the supplied (y,u,v) values.
An RGB color can be reduced to 16 bits per pixel by conversion to luminance and color differences with the following equations:
y (luminance) = 0.299*red + 0.587*green + 0.114*blue u = blue - luminance v = red - luminance