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);