337 #define DST(x, y) dst[(x) + (y) * BPS]  macro
383   DST(0, 3)                                     = AVG3(J, K, L);  in RD4()
384   DST(0, 2) = DST(1, 3)                         = AVG3(I, J, K);  in RD4()
385   DST(0, 1) = DST(1, 2) = DST(2, 3)             = AVG3(X, I, J);  in RD4()
386   DST(0, 0) = DST(1, 1) = DST(2, 2) = DST(3, 3) = AVG3(A, X, I);  in RD4()
387   DST(1, 0) = DST(2, 1) = DST(3, 2)             = AVG3(B, A, X);  in RD4()
388   DST(2, 0) = DST(3, 1)                         = AVG3(C, B, A);  in RD4()
389   DST(3, 0)                                     = AVG3(D, C, B);  in RD4()
401   DST(0, 0)                                     = AVG3(A, B, C);  in LD4()
402   DST(1, 0) = DST(0, 1)                         = AVG3(B, C, D);  in LD4()
403   DST(2, 0) = DST(1, 1) = DST(0, 2)             = AVG3(C, D, E);  in LD4()
404   DST(3, 0) = DST(2, 1) = DST(1, 2) = DST(0, 3) = AVG3(D, E, F);  in LD4()
405   DST(3, 1) = DST(2, 2) = DST(1, 3)             = AVG3(E, F, G);  in LD4()
406   DST(3, 2) = DST(2, 3)                         = AVG3(F, G, H);  in LD4()
407   DST(3, 3)                                     = AVG3(G, H, H);  in LD4()
419   DST(0, 0) = DST(1, 2) = AVG2(X, A);  in VR4()
420   DST(1, 0) = DST(2, 2) = AVG2(A, B);  in VR4()
421   DST(2, 0) = DST(3, 2) = AVG2(B, C);  in VR4()
422   DST(3, 0)             = AVG2(C, D);  in VR4()
424   DST(0, 3) =             AVG3(K, J, I);  in VR4()
425   DST(0, 2) =             AVG3(J, I, X);  in VR4()
426   DST(0, 1) = DST(1, 3) = AVG3(I, X, A);  in VR4()
427   DST(1, 1) = DST(2, 3) = AVG3(X, A, B);  in VR4()
428   DST(2, 1) = DST(3, 3) = AVG3(A, B, C);  in VR4()
429   DST(3, 1) =             AVG3(B, C, D);  in VR4()
441   DST(0, 0) =             AVG2(A, B);  in VL4()
442   DST(1, 0) = DST(0, 2) = AVG2(B, C);  in VL4()
443   DST(2, 0) = DST(1, 2) = AVG2(C, D);  in VL4()
444   DST(3, 0) = DST(2, 2) = AVG2(D, E);  in VL4()
446   DST(0, 1) =             AVG3(A, B, C);  in VL4()
447   DST(1, 1) = DST(0, 3) = AVG3(B, C, D);  in VL4()
448   DST(2, 1) = DST(1, 3) = AVG3(C, D, E);  in VL4()
449   DST(3, 1) = DST(2, 3) = AVG3(D, E, F);  in VL4()
450               DST(3, 2) = AVG3(E, F, G);  in VL4()
451               DST(3, 3) = AVG3(F, G, H);  in VL4()
459   DST(0, 0) =             AVG2(I, J);  in HU4()
460   DST(2, 0) = DST(0, 1) = AVG2(J, K);  in HU4()
461   DST(2, 1) = DST(0, 2) = AVG2(K, L);  in HU4()
462   DST(1, 0) =             AVG3(I, J, K);  in HU4()
463   DST(3, 0) = DST(1, 1) = AVG3(J, K, L);  in HU4()
464   DST(3, 1) = DST(1, 2) = AVG3(K, L, L);  in HU4()
465   DST(3, 2) = DST(2, 2) =  in HU4()
466   DST(0, 3) = DST(1, 3) = DST(2, 3) = DST(3, 3) = L;  in HU4()
479   DST(0, 0) = DST(2, 1) = AVG2(I, X);  in HD4()
480   DST(0, 1) = DST(2, 2) = AVG2(J, I);  in HD4()
481   DST(0, 2) = DST(2, 3) = AVG2(K, J);  in HD4()
482   DST(0, 3)             = AVG2(L, K);  in HD4()
484   DST(3, 0)             = AVG3(A, B, C);  in HD4()
485   DST(2, 0)             = AVG3(X, A, B);  in HD4()
486   DST(1, 0) = DST(3, 1) = AVG3(I, X, A);  in HD4()
487   DST(1, 1) = DST(3, 2) = AVG3(J, I, X);  in HD4()
488   DST(1, 2) = DST(3, 3) = AVG3(K, J, I);  in HD4()
489   DST(1, 3)             = AVG3(L, K, J);  in HD4()
504 #undef DST