Computes the operamath 32.32 cosine of a 16.16 fraction.
frac32 CosF32( frac32 *c, frac16 x )
This macro returns the operamath 32.32 cosine of a 16.16 fraction. In operamath coordinates, there are 256.0 units in a circle.
The macro actually calls the SinF32()
function with one quarter circle added to the input value.
The macro returns the cosine of the input angle.
Macro implemented in operamath.h V20.
operamath.h