345 #define AVG3(a, b, c) (((a) + 2 * (b) + (c) + 2) >> 2)  macro
350     AVG3(top[-1], top[0], top[1]),  in VE4()
351     AVG3(top[ 0], top[1], top[2]),  in VE4()
352     AVG3(top[ 1], top[2], top[3]),  in VE4()
353     AVG3(top[ 2], top[3], top[4])  in VE4()
367   *(uint32_t*)(dst + 0 * BPS) = 0x01010101U * AVG3(X, I, J);  in HE4()
368   *(uint32_t*)(dst + 1 * BPS) = 0x01010101U * AVG3(I, J, K);  in HE4()
369   *(uint32_t*)(dst + 2 * BPS) = 0x01010101U * AVG3(J, K, L);  in HE4()
370   *(uint32_t*)(dst + 3 * BPS) = 0x01010101U * AVG3(K, L, L);  in HE4()
390   DST(0, 3)                                     = AVG3(J, K, L);  in RD4()
391   DST(0, 2) = DST(1, 3)                         = AVG3(I, J, K);  in RD4()
392   DST(0, 1) = DST(1, 2) = DST(2, 3)             = AVG3(X, I, J);  in RD4()
393   DST(0, 0) = DST(1, 1) = DST(2, 2) = DST(3, 3) = AVG3(A, X, I);  in RD4()
394   DST(1, 0) = DST(2, 1) = DST(3, 2)             = AVG3(B, A, X);  in RD4()
395   DST(2, 0) = DST(3, 1)                         = AVG3(C, B, A);  in RD4()
396   DST(3, 0)                                     = AVG3(D, C, B);  in RD4()
408   DST(0, 0)                                     = AVG3(A, B, C);  in LD4()
409   DST(1, 0) = DST(0, 1)                         = AVG3(B, C, D);  in LD4()
410   DST(2, 0) = DST(1, 1) = DST(0, 2)             = AVG3(C, D, E);  in LD4()
411   DST(3, 0) = DST(2, 1) = DST(1, 2) = DST(0, 3) = AVG3(D, E, F);  in LD4()
412   DST(3, 1) = DST(2, 2) = DST(1, 3)             = AVG3(E, F, G);  in LD4()
413   DST(3, 2) = DST(2, 3)                         = AVG3(F, G, H);  in LD4()
414   DST(3, 3)                                     = AVG3(G, H, H);  in LD4()
431   DST(0, 3) =             AVG3(K, J, I);  in VR4()
432   DST(0, 2) =             AVG3(J, I, X);  in VR4()
433   DST(0, 1) = DST(1, 3) = AVG3(I, X, A);  in VR4()
434   DST(1, 1) = DST(2, 3) = AVG3(X, A, B);  in VR4()
435   DST(2, 1) = DST(3, 3) = AVG3(A, B, C);  in VR4()
436   DST(3, 1) =             AVG3(B, C, D);  in VR4()
453   DST(0, 1) =             AVG3(A, B, C);  in VL4()
454   DST(1, 1) = DST(0, 3) = AVG3(B, C, D);  in VL4()
455   DST(2, 1) = DST(1, 3) = AVG3(C, D, E);  in VL4()
456   DST(3, 1) = DST(2, 3) = AVG3(D, E, F);  in VL4()
457               DST(3, 2) = AVG3(E, F, G);  in VL4()
458               DST(3, 3) = AVG3(F, G, H);  in VL4()
469   DST(1, 0) =             AVG3(I, J, K);  in HU4()
470   DST(3, 0) = DST(1, 1) = AVG3(J, K, L);  in HU4()
471   DST(3, 1) = DST(1, 2) = AVG3(K, L, L);  in HU4()
491   DST(3, 0)             = AVG3(A, B, C);  in HD4()
492   DST(2, 0)             = AVG3(X, A, B);  in HD4()
493   DST(1, 0) = DST(3, 1) = AVG3(I, X, A);  in HD4()
494   DST(1, 1) = DST(3, 2) = AVG3(J, I, X);  in HD4()
495   DST(1, 2) = DST(3, 3) = AVG3(K, J, I);  in HD4()
496   DST(1, 3)             = AVG3(L, K, J);  in HD4()
512 #undef AVG3