typedef jint32 jfixed;

#define J_FIXED_FRACTION_BITS  16
#define J_FIXED_WHOLE_BITS     (32 - J_FIXED_FRACTION_BITS)
#define jfixedToFloat(F)       ((float)((F) * ((float)(1) / (float)(1 << J_FIXED_FRACTION_BITS))))
#define floatToJfixed(F)       ((jfixed)((F) * (1 << J_FIXED_FRACTION_BITS)))
#define fAdd(A,B)              ((A) + (B))
#define fSub(A,B)              ((A) - (B))
#define fMul(A,B)              ((jfixed)(((jfixed)(A) * (jfixed)(B)) >> J_FIXED_FRACTION_BITS))
#define fDiv(A,B)              ((jfixed)(((jfixed)(A) << J_FIXED_FRACTION_BITS) / (jfixed)(B)))