76 #define JPC_FLOORDIV(x, y) ((x) / (y))
79 #define JPC_CEILDIV(x, y) (((x) + (y) - 1) / (y))
82 #define JPC_FLOORDIVPOW2(x, y) ((x) >> (y))
85 #define JPC_CEILDIVPOW2(x, y) (((x) + (1 << (y)) - 1) >> (y))
93 int jpc_firstone(
int x);
97 int jpc_floorlog2(
int x);