|  | /* | 
|  | * Copyright (c) 2016, Alliance for Open Media. All rights reserved | 
|  | * | 
|  | * This source code is subject to the terms of the BSD 2 Clause License and | 
|  | * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License | 
|  | * was not distributed with this source code in the LICENSE file, you can | 
|  | * obtain it at www.aomedia.org/license/software. If the Alliance for Open | 
|  | * Media Patent License 1.0 was not distributed with this source code in the | 
|  | * PATENTS file, you can obtain it at www.aomedia.org/license/patent. | 
|  | */ | 
|  |  | 
|  | #include <assert.h> | 
|  |  | 
|  | #include "av1/common/scan.h" | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, default_scan_4x4[16]) = { | 
|  | 0, 4, 1, 5, 8, 2, 12, 9, 3, 6, 13, 10, 7, 14, 11, 15, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, col_scan_4x4[16]) = { | 
|  | 0, 4, 8, 1, 12, 5, 9, 2, 13, 6, 10, 3, 7, 14, 11, 15, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, row_scan_4x4[16]) = { | 
|  | 0, 1, 4, 2, 5, 3, 6, 8, 9, 7, 12, 10, 13, 11, 14, 15, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, default_scan_8x8[64]) = { | 
|  | 0,  8,  1,  16, 9,  2,  17, 24, 10, 3,  18, 25, 32, 11, 4,  26, | 
|  | 33, 19, 40, 12, 34, 27, 5,  41, 20, 48, 13, 35, 42, 28, 21, 6, | 
|  | 49, 56, 36, 43, 29, 7,  14, 50, 57, 44, 22, 37, 15, 51, 58, 30, | 
|  | 45, 23, 52, 59, 38, 31, 60, 53, 46, 39, 61, 54, 47, 62, 55, 63, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, col_scan_8x8[64]) = { | 
|  | 0,  8,  16, 1,  24, 9,  32, 17, 2,  40, 25, 10, 33, 18, 48, 3, | 
|  | 26, 41, 11, 56, 19, 34, 4,  49, 27, 42, 12, 35, 20, 57, 50, 28, | 
|  | 5,  43, 13, 36, 58, 51, 21, 44, 6,  29, 59, 37, 14, 52, 22, 7, | 
|  | 45, 60, 30, 15, 38, 53, 23, 46, 31, 61, 39, 54, 47, 62, 55, 63, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, row_scan_8x8[64]) = { | 
|  | 0,  1,  2,  8,  9,  3,  16, 10, 4,  17, 11, 24, 5,  18, 25, 12, | 
|  | 19, 26, 32, 6,  13, 20, 33, 27, 7,  34, 40, 21, 28, 41, 14, 35, | 
|  | 48, 42, 29, 36, 49, 22, 43, 15, 56, 37, 50, 44, 30, 57, 23, 51, | 
|  | 58, 45, 38, 52, 31, 59, 53, 46, 60, 39, 61, 47, 54, 55, 62, 63, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, default_scan_16x16[256]) = { | 
|  | 0,   16,  1,   32,  17,  2,   48,  33,  18,  3,   64,  34,  49,  19,  65, | 
|  | 80,  50,  4,   35,  66,  20,  81,  96,  51,  5,   36,  82,  97,  67,  112, | 
|  | 21,  52,  98,  37,  83,  113, 6,   68,  128, 53,  22,  99,  114, 84,  7, | 
|  | 129, 38,  69,  100, 115, 144, 130, 85,  54,  23,  8,   145, 39,  70,  116, | 
|  | 101, 131, 160, 146, 55,  86,  24,  71,  132, 117, 161, 40,  9,   102, 147, | 
|  | 176, 162, 87,  56,  25,  133, 118, 177, 148, 72,  103, 41,  163, 10,  192, | 
|  | 178, 88,  57,  134, 149, 119, 26,  164, 73,  104, 193, 42,  179, 208, 11, | 
|  | 135, 89,  165, 120, 150, 58,  194, 180, 27,  74,  209, 105, 151, 136, 43, | 
|  | 90,  224, 166, 195, 181, 121, 210, 59,  12,  152, 106, 167, 196, 75,  137, | 
|  | 225, 211, 240, 182, 122, 91,  28,  197, 13,  226, 168, 183, 153, 44,  212, | 
|  | 138, 107, 241, 60,  29,  123, 198, 184, 227, 169, 242, 76,  213, 154, 45, | 
|  | 92,  14,  199, 139, 61,  228, 214, 170, 185, 243, 108, 77,  155, 30,  15, | 
|  | 200, 229, 124, 215, 244, 93,  46,  186, 171, 201, 109, 140, 230, 62,  216, | 
|  | 245, 31,  125, 78,  156, 231, 47,  187, 202, 217, 94,  246, 141, 63,  232, | 
|  | 172, 110, 247, 157, 79,  218, 203, 126, 233, 188, 248, 95,  173, 142, 219, | 
|  | 111, 249, 234, 158, 127, 189, 204, 250, 235, 143, 174, 220, 205, 159, 251, | 
|  | 190, 221, 175, 236, 237, 191, 206, 252, 222, 253, 207, 238, 223, 254, 239, | 
|  | 255, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, col_scan_16x16[256]) = { | 
|  | 0,   16,  32,  48,  1,   64,  17,  80,  33,  96,  49,  2,   65,  112, 18, | 
|  | 81,  34,  128, 50,  97,  3,   66,  144, 19,  113, 35,  82,  160, 98,  51, | 
|  | 129, 4,   67,  176, 20,  114, 145, 83,  36,  99,  130, 52,  192, 5,   161, | 
|  | 68,  115, 21,  146, 84,  208, 177, 37,  131, 100, 53,  162, 224, 69,  6, | 
|  | 116, 193, 147, 85,  22,  240, 132, 38,  178, 101, 163, 54,  209, 117, 70, | 
|  | 7,   148, 194, 86,  179, 225, 23,  133, 39,  164, 8,   102, 210, 241, 55, | 
|  | 195, 118, 149, 71,  180, 24,  87,  226, 134, 165, 211, 40,  103, 56,  72, | 
|  | 150, 196, 242, 119, 9,   181, 227, 88,  166, 25,  135, 41,  104, 212, 57, | 
|  | 151, 197, 120, 73,  243, 182, 136, 167, 213, 89,  10,  228, 105, 152, 198, | 
|  | 26,  42,  121, 183, 244, 168, 58,  137, 229, 74,  214, 90,  153, 199, 184, | 
|  | 11,  106, 245, 27,  122, 230, 169, 43,  215, 59,  200, 138, 185, 246, 75, | 
|  | 12,  91,  154, 216, 231, 107, 28,  44,  201, 123, 170, 60,  247, 232, 76, | 
|  | 139, 13,  92,  217, 186, 248, 155, 108, 29,  124, 45,  202, 233, 171, 61, | 
|  | 14,  77,  140, 15,  249, 93,  30,  187, 156, 218, 46,  109, 125, 62,  172, | 
|  | 78,  203, 31,  141, 234, 94,  47,  188, 63,  157, 110, 250, 219, 79,  126, | 
|  | 204, 173, 142, 95,  189, 111, 235, 158, 220, 251, 127, 174, 143, 205, 236, | 
|  | 159, 190, 221, 252, 175, 206, 237, 191, 253, 222, 238, 207, 254, 223, 239, | 
|  | 255, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, row_scan_16x16[256]) = { | 
|  | 0,   1,   2,   16,  3,   17,  4,   18,  32,  5,   33,  19,  6,   34,  48, | 
|  | 20,  49,  7,   35,  21,  50,  64,  8,   36,  65,  22,  51,  37,  80,  9, | 
|  | 66,  52,  23,  38,  81,  67,  10,  53,  24,  82,  68,  96,  39,  11,  54, | 
|  | 83,  97,  69,  25,  98,  84,  40,  112, 55,  12,  70,  99,  113, 85,  26, | 
|  | 41,  56,  114, 100, 13,  71,  128, 86,  27,  115, 101, 129, 42,  57,  72, | 
|  | 116, 14,  87,  130, 102, 144, 73,  131, 117, 28,  58,  15,  88,  43,  145, | 
|  | 103, 132, 146, 118, 74,  160, 89,  133, 104, 29,  59,  147, 119, 44,  161, | 
|  | 148, 90,  105, 134, 162, 120, 176, 75,  135, 149, 30,  60,  163, 177, 45, | 
|  | 121, 91,  106, 164, 178, 150, 192, 136, 165, 179, 31,  151, 193, 76,  122, | 
|  | 61,  137, 194, 107, 152, 180, 208, 46,  166, 167, 195, 92,  181, 138, 209, | 
|  | 123, 153, 224, 196, 77,  168, 210, 182, 240, 108, 197, 62,  154, 225, 183, | 
|  | 169, 211, 47,  139, 93,  184, 226, 212, 241, 198, 170, 124, 155, 199, 78, | 
|  | 213, 185, 109, 227, 200, 63,  228, 242, 140, 214, 171, 186, 156, 229, 243, | 
|  | 125, 94,  201, 244, 215, 216, 230, 141, 187, 202, 79,  172, 110, 157, 245, | 
|  | 217, 231, 95,  246, 232, 126, 203, 247, 233, 173, 218, 142, 111, 158, 188, | 
|  | 248, 127, 234, 219, 249, 189, 204, 143, 174, 159, 250, 235, 205, 220, 175, | 
|  | 190, 251, 221, 191, 206, 236, 207, 237, 252, 222, 253, 223, 238, 239, 254, | 
|  | 255, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, default_scan_32x32[1024]) = { | 
|  | 0,    32,   1,    64,  33,   2,    96,   65,   34,   128,  3,    97,   66, | 
|  | 160,  129,  35,   98,  4,    67,   130,  161,  192,  36,   99,   224,  5, | 
|  | 162,  193,  68,   131, 37,   100,  225,  194,  256,  163,  69,   132,  6, | 
|  | 226,  257,  288,  195, 101,  164,  38,   258,  7,    227,  289,  133,  320, | 
|  | 70,   196,  165,  290, 259,  228,  39,   321,  102,  352,  8,    197,  71, | 
|  | 134,  322,  291,  260, 353,  384,  229,  166,  103,  40,   354,  323,  292, | 
|  | 135,  385,  198,  261, 72,   9,    416,  167,  386,  355,  230,  324,  104, | 
|  | 293,  41,   417,  199, 136,  262,  387,  448,  325,  356,  10,   73,   418, | 
|  | 231,  168,  449,  294, 388,  105,  419,  263,  42,   200,  357,  450,  137, | 
|  | 480,  74,   326,  232, 11,   389,  169,  295,  420,  106,  451,  481,  358, | 
|  | 264,  327,  201,  43,  138,  512,  482,  390,  296,  233,  170,  421,  75, | 
|  | 452,  359,  12,   513, 265,  483,  328,  107,  202,  514,  544,  422,  391, | 
|  | 453,  139,  44,   234, 484,  297,  360,  171,  76,   515,  545,  266,  329, | 
|  | 454,  13,   423,  203, 108,  546,  485,  576,  298,  235,  140,  361,  330, | 
|  | 172,  547,  45,   455, 267,  577,  486,  77,   204,  362,  608,  14,   299, | 
|  | 578,  109,  236,  487, 609,  331,  141,  579,  46,   15,   173,  610,  363, | 
|  | 78,   205,  16,   110, 237,  611,  142,  47,   174,  79,   206,  17,   111, | 
|  | 238,  48,   143,  80,  175,  112,  207,  49,   18,   239,  81,   113,  19, | 
|  | 50,   82,   114,  51,  83,   115,  640,  516,  392,  268,  144,  20,   672, | 
|  | 641,  548,  517,  424, 393,  300,  269,  176,  145,  52,   21,   704,  673, | 
|  | 642,  580,  549,  518, 456,  425,  394,  332,  301,  270,  208,  177,  146, | 
|  | 84,   53,   22,   736, 705,  674,  643,  612,  581,  550,  519,  488,  457, | 
|  | 426,  395,  364,  333, 302,  271,  240,  209,  178,  147,  116,  85,   54, | 
|  | 23,   737,  706,  675, 613,  582,  551,  489,  458,  427,  365,  334,  303, | 
|  | 241,  210,  179,  117, 86,   55,   738,  707,  614,  583,  490,  459,  366, | 
|  | 335,  242,  211,  118, 87,   739,  615,  491,  367,  243,  119,  768,  644, | 
|  | 520,  396,  272,  148, 24,   800,  769,  676,  645,  552,  521,  428,  397, | 
|  | 304,  273,  180,  149, 56,   25,   832,  801,  770,  708,  677,  646,  584, | 
|  | 553,  522,  460,  429, 398,  336,  305,  274,  212,  181,  150,  88,   57, | 
|  | 26,   864,  833,  802, 771,  740,  709,  678,  647,  616,  585,  554,  523, | 
|  | 492,  461,  430,  399, 368,  337,  306,  275,  244,  213,  182,  151,  120, | 
|  | 89,   58,   27,   865, 834,  803,  741,  710,  679,  617,  586,  555,  493, | 
|  | 462,  431,  369,  338, 307,  245,  214,  183,  121,  90,   59,   866,  835, | 
|  | 742,  711,  618,  587, 494,  463,  370,  339,  246,  215,  122,  91,   867, | 
|  | 743,  619,  495,  371, 247,  123,  896,  772,  648,  524,  400,  276,  152, | 
|  | 28,   928,  897,  804, 773,  680,  649,  556,  525,  432,  401,  308,  277, | 
|  | 184,  153,  60,   29,  960,  929,  898,  836,  805,  774,  712,  681,  650, | 
|  | 588,  557,  526,  464, 433,  402,  340,  309,  278,  216,  185,  154,  92, | 
|  | 61,   30,   992,  961, 930,  899,  868,  837,  806,  775,  744,  713,  682, | 
|  | 651,  620,  589,  558, 527,  496,  465,  434,  403,  372,  341,  310,  279, | 
|  | 248,  217,  186,  155, 124,  93,   62,   31,   993,  962,  931,  869,  838, | 
|  | 807,  745,  714,  683, 621,  590,  559,  497,  466,  435,  373,  342,  311, | 
|  | 249,  218,  187,  125, 94,   63,   994,  963,  870,  839,  746,  715,  622, | 
|  | 591,  498,  467,  374, 343,  250,  219,  126,  95,   995,  871,  747,  623, | 
|  | 499,  375,  251,  127, 900,  776,  652,  528,  404,  280,  156,  932,  901, | 
|  | 808,  777,  684,  653, 560,  529,  436,  405,  312,  281,  188,  157,  964, | 
|  | 933,  902,  840,  809, 778,  716,  685,  654,  592,  561,  530,  468,  437, | 
|  | 406,  344,  313,  282, 220,  189,  158,  996,  965,  934,  903,  872,  841, | 
|  | 810,  779,  748,  717, 686,  655,  624,  593,  562,  531,  500,  469,  438, | 
|  | 407,  376,  345,  314, 283,  252,  221,  190,  159,  997,  966,  935,  873, | 
|  | 842,  811,  749,  718, 687,  625,  594,  563,  501,  470,  439,  377,  346, | 
|  | 315,  253,  222,  191, 998,  967,  874,  843,  750,  719,  626,  595,  502, | 
|  | 471,  378,  347,  254, 223,  999,  875,  751,  627,  503,  379,  255,  904, | 
|  | 780,  656,  532,  408, 284,  936,  905,  812,  781,  688,  657,  564,  533, | 
|  | 440,  409,  316,  285, 968,  937,  906,  844,  813,  782,  720,  689,  658, | 
|  | 596,  565,  534,  472, 441,  410,  348,  317,  286,  1000, 969,  938,  907, | 
|  | 876,  845,  814,  783, 752,  721,  690,  659,  628,  597,  566,  535,  504, | 
|  | 473,  442,  411,  380, 349,  318,  287,  1001, 970,  939,  877,  846,  815, | 
|  | 753,  722,  691,  629, 598,  567,  505,  474,  443,  381,  350,  319,  1002, | 
|  | 971,  878,  847,  754, 723,  630,  599,  506,  475,  382,  351,  1003, 879, | 
|  | 755,  631,  507,  383, 908,  784,  660,  536,  412,  940,  909,  816,  785, | 
|  | 692,  661,  568,  537, 444,  413,  972,  941,  910,  848,  817,  786,  724, | 
|  | 693,  662,  600,  569, 538,  476,  445,  414,  1004, 973,  942,  911,  880, | 
|  | 849,  818,  787,  756, 725,  694,  663,  632,  601,  570,  539,  508,  477, | 
|  | 446,  415,  1005, 974, 943,  881,  850,  819,  757,  726,  695,  633,  602, | 
|  | 571,  509,  478,  447, 1006, 975,  882,  851,  758,  727,  634,  603,  510, | 
|  | 479,  1007, 883,  759, 635,  511,  912,  788,  664,  540,  944,  913,  820, | 
|  | 789,  696,  665,  572, 541,  976,  945,  914,  852,  821,  790,  728,  697, | 
|  | 666,  604,  573,  542, 1008, 977,  946,  915,  884,  853,  822,  791,  760, | 
|  | 729,  698,  667,  636, 605,  574,  543,  1009, 978,  947,  885,  854,  823, | 
|  | 761,  730,  699,  637, 606,  575,  1010, 979,  886,  855,  762,  731,  638, | 
|  | 607,  1011, 887,  763, 639,  916,  792,  668,  948,  917,  824,  793,  700, | 
|  | 669,  980,  949,  918, 856,  825,  794,  732,  701,  670,  1012, 981,  950, | 
|  | 919,  888,  857,  826, 795,  764,  733,  702,  671,  1013, 982,  951,  889, | 
|  | 858,  827,  765,  734, 703,  1014, 983,  890,  859,  766,  735,  1015, 891, | 
|  | 767,  920,  796,  952, 921,  828,  797,  984,  953,  922,  860,  829,  798, | 
|  | 1016, 985,  954,  923, 892,  861,  830,  799,  1017, 986,  955,  893,  862, | 
|  | 831,  1018, 987,  894, 863,  1019, 895,  924,  956,  925,  988,  957,  926, | 
|  | 1020, 989,  958,  927, 1021, 990,  959,  1022, 991,  1023, | 
|  | }; | 
|  |  | 
|  | // Neighborhood 5-tuples for various scans and blocksizes, | 
|  | // in {top, left, topleft, topright, bottomleft} order | 
|  | // for each position in raster scan order. | 
|  | // -1 indicates the neighbor does not exist. | 
|  | DECLARE_ALIGNED(16, static const int16_t, | 
|  | default_scan_4x4_neighbors[17 * MAX_NEIGHBORS]) = { | 
|  | 0, 0, 0, 0, 0,  0, 1, 4, 4, 4,  1,  1, 8,  8,  5,  8, 2, | 
|  | 2, 2, 5, 9, 12, 6, 9, 3, 6, 10, 13, 7, 10, 11, 14, 0, 0, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, | 
|  | col_scan_4x4_neighbors[17 * MAX_NEIGHBORS]) = { | 
|  | 0, 0, 0, 0, 4, 4, 0, 0, 8, 8,  1,  1, 5, 5,  1,  1, 9, | 
|  | 9, 2, 2, 6, 6, 2, 2, 3, 3, 10, 10, 7, 7, 11, 11, 0, 0, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, | 
|  | row_scan_4x4_neighbors[17 * MAX_NEIGHBORS]) = { | 
|  | 0, 0, 0, 0, 0, 0, 1, 1,  4,  4,  2,  2,  5,  5,  4,  4, 8, | 
|  | 8, 6, 6, 8, 8, 9, 9, 12, 12, 10, 10, 13, 13, 14, 14, 0, 0, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, | 
|  | col_scan_8x8_neighbors[65 * MAX_NEIGHBORS]) = { | 
|  | 0,  0,  0,  0,  8,  8,  0,  0,  16, 16, 1,  1,  24, 24, 9,  9,  1,  1,  32, | 
|  | 32, 17, 17, 2,  2,  25, 25, 10, 10, 40, 40, 2,  2,  18, 18, 33, 33, 3,  3, | 
|  | 48, 48, 11, 11, 26, 26, 3,  3,  41, 41, 19, 19, 34, 34, 4,  4,  27, 27, 12, | 
|  | 12, 49, 49, 42, 42, 20, 20, 4,  4,  35, 35, 5,  5,  28, 28, 50, 50, 43, 43, | 
|  | 13, 13, 36, 36, 5,  5,  21, 21, 51, 51, 29, 29, 6,  6,  44, 44, 14, 14, 6, | 
|  | 6,  37, 37, 52, 52, 22, 22, 7,  7,  30, 30, 45, 45, 15, 15, 38, 38, 23, 23, | 
|  | 53, 53, 31, 31, 46, 46, 39, 39, 54, 54, 47, 47, 55, 55, 0,  0, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, | 
|  | row_scan_8x8_neighbors[65 * MAX_NEIGHBORS]) = { | 
|  | 0,  0,  0,  0,  1,  1,  0,  0,  8,  8,  2,  2,  8,  8,  9,  9,  3,  3,  16, | 
|  | 16, 10, 10, 16, 16, 4,  4,  17, 17, 24, 24, 11, 11, 18, 18, 25, 25, 24, 24, | 
|  | 5,  5,  12, 12, 19, 19, 32, 32, 26, 26, 6,  6,  33, 33, 32, 32, 20, 20, 27, | 
|  | 27, 40, 40, 13, 13, 34, 34, 40, 40, 41, 41, 28, 28, 35, 35, 48, 48, 21, 21, | 
|  | 42, 42, 14, 14, 48, 48, 36, 36, 49, 49, 43, 43, 29, 29, 56, 56, 22, 22, 50, | 
|  | 50, 57, 57, 44, 44, 37, 37, 51, 51, 30, 30, 58, 58, 52, 52, 45, 45, 59, 59, | 
|  | 38, 38, 60, 60, 46, 46, 53, 53, 54, 54, 61, 61, 62, 62, 0,  0, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, | 
|  | default_scan_8x8_neighbors[65 * MAX_NEIGHBORS]) = { | 
|  | 0,  0,  0,  0,  0,  0,  8,  8,  1,  8,  1,  1,  9,  16, 16, 16, 2,  9,  2, | 
|  | 2,  10, 17, 17, 24, 24, 24, 3,  10, 3,  3,  18, 25, 25, 32, 11, 18, 32, 32, | 
|  | 4,  11, 26, 33, 19, 26, 4,  4,  33, 40, 12, 19, 40, 40, 5,  12, 27, 34, 34, | 
|  | 41, 20, 27, 13, 20, 5,  5,  41, 48, 48, 48, 28, 35, 35, 42, 21, 28, 6,  6, | 
|  | 6,  13, 42, 49, 49, 56, 36, 43, 14, 21, 29, 36, 7,  14, 43, 50, 50, 57, 22, | 
|  | 29, 37, 44, 15, 22, 44, 51, 51, 58, 30, 37, 23, 30, 52, 59, 45, 52, 38, 45, | 
|  | 31, 38, 53, 60, 46, 53, 39, 46, 54, 61, 47, 54, 55, 62, 0,  0, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, | 
|  | col_scan_16x16_neighbors[257 * MAX_NEIGHBORS]) = { | 
|  | 0,   0,   0,   0,   16,  16,  32,  32,  0,   0,   48,  48,  1,   1,   64, | 
|  | 64,  17,  17,  80,  80,  33,  33,  1,   1,   49,  49,  96,  96,  2,   2, | 
|  | 65,  65,  18,  18,  112, 112, 34,  34,  81,  81,  2,   2,   50,  50,  128, | 
|  | 128, 3,   3,   97,  97,  19,  19,  66,  66,  144, 144, 82,  82,  35,  35, | 
|  | 113, 113, 3,   3,   51,  51,  160, 160, 4,   4,   98,  98,  129, 129, 67, | 
|  | 67,  20,  20,  83,  83,  114, 114, 36,  36,  176, 176, 4,   4,   145, 145, | 
|  | 52,  52,  99,  99,  5,   5,   130, 130, 68,  68,  192, 192, 161, 161, 21, | 
|  | 21,  115, 115, 84,  84,  37,  37,  146, 146, 208, 208, 53,  53,  5,   5, | 
|  | 100, 100, 177, 177, 131, 131, 69,  69,  6,   6,   224, 224, 116, 116, 22, | 
|  | 22,  162, 162, 85,  85,  147, 147, 38,  38,  193, 193, 101, 101, 54,  54, | 
|  | 6,   6,   132, 132, 178, 178, 70,  70,  163, 163, 209, 209, 7,   7,   117, | 
|  | 117, 23,  23,  148, 148, 7,   7,   86,  86,  194, 194, 225, 225, 39,  39, | 
|  | 179, 179, 102, 102, 133, 133, 55,  55,  164, 164, 8,   8,   71,  71,  210, | 
|  | 210, 118, 118, 149, 149, 195, 195, 24,  24,  87,  87,  40,  40,  56,  56, | 
|  | 134, 134, 180, 180, 226, 226, 103, 103, 8,   8,   165, 165, 211, 211, 72, | 
|  | 72,  150, 150, 9,   9,   119, 119, 25,  25,  88,  88,  196, 196, 41,  41, | 
|  | 135, 135, 181, 181, 104, 104, 57,  57,  227, 227, 166, 166, 120, 120, 151, | 
|  | 151, 197, 197, 73,  73,  9,   9,   212, 212, 89,  89,  136, 136, 182, 182, | 
|  | 10,  10,  26,  26,  105, 105, 167, 167, 228, 228, 152, 152, 42,  42,  121, | 
|  | 121, 213, 213, 58,  58,  198, 198, 74,  74,  137, 137, 183, 183, 168, 168, | 
|  | 10,  10,  90,  90,  229, 229, 11,  11,  106, 106, 214, 214, 153, 153, 27, | 
|  | 27,  199, 199, 43,  43,  184, 184, 122, 122, 169, 169, 230, 230, 59,  59, | 
|  | 11,  11,  75,  75,  138, 138, 200, 200, 215, 215, 91,  91,  12,  12,  28, | 
|  | 28,  185, 185, 107, 107, 154, 154, 44,  44,  231, 231, 216, 216, 60,  60, | 
|  | 123, 123, 12,  12,  76,  76,  201, 201, 170, 170, 232, 232, 139, 139, 92, | 
|  | 92,  13,  13,  108, 108, 29,  29,  186, 186, 217, 217, 155, 155, 45,  45, | 
|  | 13,  13,  61,  61,  124, 124, 14,  14,  233, 233, 77,  77,  14,  14,  171, | 
|  | 171, 140, 140, 202, 202, 30,  30,  93,  93,  109, 109, 46,  46,  156, 156, | 
|  | 62,  62,  187, 187, 15,  15,  125, 125, 218, 218, 78,  78,  31,  31,  172, | 
|  | 172, 47,  47,  141, 141, 94,  94,  234, 234, 203, 203, 63,  63,  110, 110, | 
|  | 188, 188, 157, 157, 126, 126, 79,  79,  173, 173, 95,  95,  219, 219, 142, | 
|  | 142, 204, 204, 235, 235, 111, 111, 158, 158, 127, 127, 189, 189, 220, 220, | 
|  | 143, 143, 174, 174, 205, 205, 236, 236, 159, 159, 190, 190, 221, 221, 175, | 
|  | 175, 237, 237, 206, 206, 222, 222, 191, 191, 238, 238, 207, 207, 223, 223, | 
|  | 239, 239, 0,   0, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, | 
|  | row_scan_16x16_neighbors[257 * MAX_NEIGHBORS]) = { | 
|  | 0,   0,   0,   0,   1,   1,   0,   0,   2,   2,   16,  16,  3,   3,   17, | 
|  | 17,  16,  16,  4,   4,   32,  32,  18,  18,  5,   5,   33,  33,  32,  32, | 
|  | 19,  19,  48,  48,  6,   6,   34,  34,  20,  20,  49,  49,  48,  48,  7, | 
|  | 7,   35,  35,  64,  64,  21,  21,  50,  50,  36,  36,  64,  64,  8,   8, | 
|  | 65,  65,  51,  51,  22,  22,  37,  37,  80,  80,  66,  66,  9,   9,   52, | 
|  | 52,  23,  23,  81,  81,  67,  67,  80,  80,  38,  38,  10,  10,  53,  53, | 
|  | 82,  82,  96,  96,  68,  68,  24,  24,  97,  97,  83,  83,  39,  39,  96, | 
|  | 96,  54,  54,  11,  11,  69,  69,  98,  98,  112, 112, 84,  84,  25,  25, | 
|  | 40,  40,  55,  55,  113, 113, 99,  99,  12,  12,  70,  70,  112, 112, 85, | 
|  | 85,  26,  26,  114, 114, 100, 100, 128, 128, 41,  41,  56,  56,  71,  71, | 
|  | 115, 115, 13,  13,  86,  86,  129, 129, 101, 101, 128, 128, 72,  72,  130, | 
|  | 130, 116, 116, 27,  27,  57,  57,  14,  14,  87,  87,  42,  42,  144, 144, | 
|  | 102, 102, 131, 131, 145, 145, 117, 117, 73,  73,  144, 144, 88,  88,  132, | 
|  | 132, 103, 103, 28,  28,  58,  58,  146, 146, 118, 118, 43,  43,  160, 160, | 
|  | 147, 147, 89,  89,  104, 104, 133, 133, 161, 161, 119, 119, 160, 160, 74, | 
|  | 74,  134, 134, 148, 148, 29,  29,  59,  59,  162, 162, 176, 176, 44,  44, | 
|  | 120, 120, 90,  90,  105, 105, 163, 163, 177, 177, 149, 149, 176, 176, 135, | 
|  | 135, 164, 164, 178, 178, 30,  30,  150, 150, 192, 192, 75,  75,  121, 121, | 
|  | 60,  60,  136, 136, 193, 193, 106, 106, 151, 151, 179, 179, 192, 192, 45, | 
|  | 45,  165, 165, 166, 166, 194, 194, 91,  91,  180, 180, 137, 137, 208, 208, | 
|  | 122, 122, 152, 152, 208, 208, 195, 195, 76,  76,  167, 167, 209, 209, 181, | 
|  | 181, 224, 224, 107, 107, 196, 196, 61,  61,  153, 153, 224, 224, 182, 182, | 
|  | 168, 168, 210, 210, 46,  46,  138, 138, 92,  92,  183, 183, 225, 225, 211, | 
|  | 211, 240, 240, 197, 197, 169, 169, 123, 123, 154, 154, 198, 198, 77,  77, | 
|  | 212, 212, 184, 184, 108, 108, 226, 226, 199, 199, 62,  62,  227, 227, 241, | 
|  | 241, 139, 139, 213, 213, 170, 170, 185, 185, 155, 155, 228, 228, 242, 242, | 
|  | 124, 124, 93,  93,  200, 200, 243, 243, 214, 214, 215, 215, 229, 229, 140, | 
|  | 140, 186, 186, 201, 201, 78,  78,  171, 171, 109, 109, 156, 156, 244, 244, | 
|  | 216, 216, 230, 230, 94,  94,  245, 245, 231, 231, 125, 125, 202, 202, 246, | 
|  | 246, 232, 232, 172, 172, 217, 217, 141, 141, 110, 110, 157, 157, 187, 187, | 
|  | 247, 247, 126, 126, 233, 233, 218, 218, 248, 248, 188, 188, 203, 203, 142, | 
|  | 142, 173, 173, 158, 158, 249, 249, 234, 234, 204, 204, 219, 219, 174, 174, | 
|  | 189, 189, 250, 250, 220, 220, 190, 190, 205, 205, 235, 235, 206, 206, 236, | 
|  | 236, 251, 251, 221, 221, 252, 252, 222, 222, 237, 237, 238, 238, 253, 253, | 
|  | 254, 254, 0,   0, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, | 
|  | default_scan_16x16_neighbors[257 * MAX_NEIGHBORS]) = { | 
|  | 0,   0,   0,   0,   0,   0,   16,  16,  1,   16,  1,   1,   32,  32,  17, | 
|  | 32,  2,   17,  2,   2,   48,  48,  18,  33,  33,  48,  3,   18,  49,  64, | 
|  | 64,  64,  34,  49,  3,   3,   19,  34,  50,  65,  4,   19,  65,  80,  80, | 
|  | 80,  35,  50,  4,   4,   20,  35,  66,  81,  81,  96,  51,  66,  96,  96, | 
|  | 5,   20,  36,  51,  82,  97,  21,  36,  67,  82,  97,  112, 5,   5,   52, | 
|  | 67,  112, 112, 37,  52,  6,   21,  83,  98,  98,  113, 68,  83,  6,   6, | 
|  | 113, 128, 22,  37,  53,  68,  84,  99,  99,  114, 128, 128, 114, 129, 69, | 
|  | 84,  38,  53,  7,   22,  7,   7,   129, 144, 23,  38,  54,  69,  100, 115, | 
|  | 85,  100, 115, 130, 144, 144, 130, 145, 39,  54,  70,  85,  8,   23,  55, | 
|  | 70,  116, 131, 101, 116, 145, 160, 24,  39,  8,   8,   86,  101, 131, 146, | 
|  | 160, 160, 146, 161, 71,  86,  40,  55,  9,   24,  117, 132, 102, 117, 161, | 
|  | 176, 132, 147, 56,  71,  87,  102, 25,  40,  147, 162, 9,   9,   176, 176, | 
|  | 162, 177, 72,  87,  41,  56,  118, 133, 133, 148, 103, 118, 10,  25,  148, | 
|  | 163, 57,  72,  88,  103, 177, 192, 26,  41,  163, 178, 192, 192, 10,  10, | 
|  | 119, 134, 73,  88,  149, 164, 104, 119, 134, 149, 42,  57,  178, 193, 164, | 
|  | 179, 11,  26,  58,  73,  193, 208, 89,  104, 135, 150, 120, 135, 27,  42, | 
|  | 74,  89,  208, 208, 150, 165, 179, 194, 165, 180, 105, 120, 194, 209, 43, | 
|  | 58,  11,  11,  136, 151, 90,  105, 151, 166, 180, 195, 59,  74,  121, 136, | 
|  | 209, 224, 195, 210, 224, 224, 166, 181, 106, 121, 75,  90,  12,  27,  181, | 
|  | 196, 12,  12,  210, 225, 152, 167, 167, 182, 137, 152, 28,  43,  196, 211, | 
|  | 122, 137, 91,  106, 225, 240, 44,  59,  13,  28,  107, 122, 182, 197, 168, | 
|  | 183, 211, 226, 153, 168, 226, 241, 60,  75,  197, 212, 138, 153, 29,  44, | 
|  | 76,  91,  13,  13,  183, 198, 123, 138, 45,  60,  212, 227, 198, 213, 154, | 
|  | 169, 169, 184, 227, 242, 92,  107, 61,  76,  139, 154, 14,  29,  14,  14, | 
|  | 184, 199, 213, 228, 108, 123, 199, 214, 228, 243, 77,  92,  30,  45,  170, | 
|  | 185, 155, 170, 185, 200, 93,  108, 124, 139, 214, 229, 46,  61,  200, 215, | 
|  | 229, 244, 15,  30,  109, 124, 62,  77,  140, 155, 215, 230, 31,  46,  171, | 
|  | 186, 186, 201, 201, 216, 78,  93,  230, 245, 125, 140, 47,  62,  216, 231, | 
|  | 156, 171, 94,  109, 231, 246, 141, 156, 63,  78,  202, 217, 187, 202, 110, | 
|  | 125, 217, 232, 172, 187, 232, 247, 79,  94,  157, 172, 126, 141, 203, 218, | 
|  | 95,  110, 233, 248, 218, 233, 142, 157, 111, 126, 173, 188, 188, 203, 234, | 
|  | 249, 219, 234, 127, 142, 158, 173, 204, 219, 189, 204, 143, 158, 235, 250, | 
|  | 174, 189, 205, 220, 159, 174, 220, 235, 221, 236, 175, 190, 190, 205, 236, | 
|  | 251, 206, 221, 237, 252, 191, 206, 222, 237, 207, 222, 238, 253, 223, 238, | 
|  | 239, 254, 0,   0, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, | 
|  | default_scan_32x32_neighbors[1025 * MAX_NEIGHBORS]) = { | 
|  | 0,   0,    0,   0,    0,   0,    32,  32,   1,   32,  1,   1,    64,  64, | 
|  | 33,  64,   2,   33,   96,  96,   2,   2,    65,  96,  34,  65,   128, 128, | 
|  | 97,  128,  3,   34,   66,  97,   3,   3,    35,  66,  98,  129,  129, 160, | 
|  | 160, 160,  4,   35,   67,  98,   192, 192,  4,   4,   130, 161,  161, 192, | 
|  | 36,  67,   99,  130,  5,   36,   68,  99,   193, 224, 162, 193,  224, 224, | 
|  | 131, 162,  37,  68,   100, 131,  5,   5,    194, 225, 225, 256,  256, 256, | 
|  | 163, 194,  69,  100,  132, 163,  6,   37,   226, 257, 6,   6,    195, 226, | 
|  | 257, 288,  101, 132,  288, 288,  38,  69,   164, 195, 133, 164,  258, 289, | 
|  | 227, 258,  196, 227,  7,   38,   289, 320,  70,  101, 320, 320,  7,   7, | 
|  | 165, 196,  39,  70,   102, 133,  290, 321,  259, 290, 228, 259,  321, 352, | 
|  | 352, 352,  197, 228,  134, 165,  71,  102,  8,   39,  322, 353,  291, 322, | 
|  | 260, 291,  103, 134,  353, 384,  166, 197,  229, 260, 40,  71,   8,   8, | 
|  | 384, 384,  135, 166,  354, 385,  323, 354,  198, 229, 292, 323,  72,  103, | 
|  | 261, 292,  9,   40,   385, 416,  167, 198,  104, 135, 230, 261,  355, 386, | 
|  | 416, 416,  293, 324,  324, 355,  9,   9,    41,  72,  386, 417,  199, 230, | 
|  | 136, 167,  417, 448,  262, 293,  356, 387,  73,  104, 387, 418,  231, 262, | 
|  | 10,  41,   168, 199,  325, 356,  418, 449,  105, 136, 448, 448,  42,  73, | 
|  | 294, 325,  200, 231,  10,  10,   357, 388,  137, 168, 263, 294,  388, 419, | 
|  | 74,  105,  419, 450,  449, 480,  326, 357,  232, 263, 295, 326,  169, 200, | 
|  | 11,  42,   106, 137,  480, 480,  450, 481,  358, 389, 264, 295,  201, 232, | 
|  | 138, 169,  389, 420,  43,  74,   420, 451,  327, 358, 11,  11,   481, 512, | 
|  | 233, 264,  451, 482,  296, 327,  75,  106,  170, 201, 482, 513,  512, 512, | 
|  | 390, 421,  359, 390,  421, 452,  107, 138,  12,  43,  202, 233,  452, 483, | 
|  | 265, 296,  328, 359,  139, 170,  44,  75,   483, 514, 513, 544,  234, 265, | 
|  | 297, 328,  422, 453,  12,  12,   391, 422,  171, 202, 76,  107,  514, 545, | 
|  | 453, 484,  544, 544,  266, 297,  203, 234,  108, 139, 329, 360,  298, 329, | 
|  | 140, 171,  515, 546,  13,  44,   423, 454,  235, 266, 545, 576,  454, 485, | 
|  | 45,  76,   172, 203,  330, 361,  576, 576,  13,  13,  267, 298,  546, 577, | 
|  | 77,  108,  204, 235,  455, 486,  577, 608,  299, 330, 109, 140,  547, 578, | 
|  | 14,  45,   14,  14,   141, 172,  578, 609,  331, 362, 46,  77,   173, 204, | 
|  | 15,  15,   78,  109,  205, 236,  579, 610,  110, 141, 15,  46,   142, 173, | 
|  | 47,  78,   174, 205,  16,  16,   79,  110,  206, 237, 16,  47,   111, 142, | 
|  | 48,  79,   143, 174,  80,  111,  175, 206,  17,  48,  17,  17,   207, 238, | 
|  | 49,  80,   81,  112,  18,  18,   18,  49,   50,  81,  82,  113,  19,  50, | 
|  | 51,  82,   83,  114,  608, 608,  484, 515,  360, 391, 236, 267,  112, 143, | 
|  | 19,  19,   640, 640,  609, 640,  516, 547,  485, 516, 392, 423,  361, 392, | 
|  | 268, 299,  237, 268,  144, 175,  113, 144,  20,  51,  20,  20,   672, 672, | 
|  | 641, 672,  610, 641,  548, 579,  517, 548,  486, 517, 424, 455,  393, 424, | 
|  | 362, 393,  300, 331,  269, 300,  238, 269,  176, 207, 145, 176,  114, 145, | 
|  | 52,  83,   21,  52,   21,  21,   704, 704,  673, 704, 642, 673,  611, 642, | 
|  | 580, 611,  549, 580,  518, 549,  487, 518,  456, 487, 425, 456,  394, 425, | 
|  | 363, 394,  332, 363,  301, 332,  270, 301,  239, 270, 208, 239,  177, 208, | 
|  | 146, 177,  115, 146,  84,  115,  53,  84,   22,  53,  22,  22,   705, 736, | 
|  | 674, 705,  643, 674,  581, 612,  550, 581,  519, 550, 457, 488,  426, 457, | 
|  | 395, 426,  333, 364,  302, 333,  271, 302,  209, 240, 178, 209,  147, 178, | 
|  | 85,  116,  54,  85,   23,  54,   706, 737,  675, 706, 582, 613,  551, 582, | 
|  | 458, 489,  427, 458,  334, 365,  303, 334,  210, 241, 179, 210,  86,  117, | 
|  | 55,  86,   707, 738,  583, 614,  459, 490,  335, 366, 211, 242,  87,  118, | 
|  | 736, 736,  612, 643,  488, 519,  364, 395,  240, 271, 116, 147,  23,  23, | 
|  | 768, 768,  737, 768,  644, 675,  613, 644,  520, 551, 489, 520,  396, 427, | 
|  | 365, 396,  272, 303,  241, 272,  148, 179,  117, 148, 24,  55,   24,  24, | 
|  | 800, 800,  769, 800,  738, 769,  676, 707,  645, 676, 614, 645,  552, 583, | 
|  | 521, 552,  490, 521,  428, 459,  397, 428,  366, 397, 304, 335,  273, 304, | 
|  | 242, 273,  180, 211,  149, 180,  118, 149,  56,  87,  25,  56,   25,  25, | 
|  | 832, 832,  801, 832,  770, 801,  739, 770,  708, 739, 677, 708,  646, 677, | 
|  | 615, 646,  584, 615,  553, 584,  522, 553,  491, 522, 460, 491,  429, 460, | 
|  | 398, 429,  367, 398,  336, 367,  305, 336,  274, 305, 243, 274,  212, 243, | 
|  | 181, 212,  150, 181,  119, 150,  88,  119,  57,  88,  26,  57,   26,  26, | 
|  | 833, 864,  802, 833,  771, 802,  709, 740,  678, 709, 647, 678,  585, 616, | 
|  | 554, 585,  523, 554,  461, 492,  430, 461,  399, 430, 337, 368,  306, 337, | 
|  | 275, 306,  213, 244,  182, 213,  151, 182,  89,  120, 58,  89,   27,  58, | 
|  | 834, 865,  803, 834,  710, 741,  679, 710,  586, 617, 555, 586,  462, 493, | 
|  | 431, 462,  338, 369,  307, 338,  214, 245,  183, 214, 90,  121,  59,  90, | 
|  | 835, 866,  711, 742,  587, 618,  463, 494,  339, 370, 215, 246,  91,  122, | 
|  | 864, 864,  740, 771,  616, 647,  492, 523,  368, 399, 244, 275,  120, 151, | 
|  | 27,  27,   896, 896,  865, 896,  772, 803,  741, 772, 648, 679,  617, 648, | 
|  | 524, 555,  493, 524,  400, 431,  369, 400,  276, 307, 245, 276,  152, 183, | 
|  | 121, 152,  28,  59,   28,  28,   928, 928,  897, 928, 866, 897,  804, 835, | 
|  | 773, 804,  742, 773,  680, 711,  649, 680,  618, 649, 556, 587,  525, 556, | 
|  | 494, 525,  432, 463,  401, 432,  370, 401,  308, 339, 277, 308,  246, 277, | 
|  | 184, 215,  153, 184,  122, 153,  60,  91,   29,  60,  29,  29,   960, 960, | 
|  | 929, 960,  898, 929,  867, 898,  836, 867,  805, 836, 774, 805,  743, 774, | 
|  | 712, 743,  681, 712,  650, 681,  619, 650,  588, 619, 557, 588,  526, 557, | 
|  | 495, 526,  464, 495,  433, 464,  402, 433,  371, 402, 340, 371,  309, 340, | 
|  | 278, 309,  247, 278,  216, 247,  185, 216,  154, 185, 123, 154,  92,  123, | 
|  | 61,  92,   30,  61,   30,  30,   961, 992,  930, 961, 899, 930,  837, 868, | 
|  | 806, 837,  775, 806,  713, 744,  682, 713,  651, 682, 589, 620,  558, 589, | 
|  | 527, 558,  465, 496,  434, 465,  403, 434,  341, 372, 310, 341,  279, 310, | 
|  | 217, 248,  186, 217,  155, 186,  93,  124,  62,  93,  31,  62,   962, 993, | 
|  | 931, 962,  838, 869,  807, 838,  714, 745,  683, 714, 590, 621,  559, 590, | 
|  | 466, 497,  435, 466,  342, 373,  311, 342,  218, 249, 187, 218,  94,  125, | 
|  | 63,  94,   963, 994,  839, 870,  715, 746,  591, 622, 467, 498,  343, 374, | 
|  | 219, 250,  95,  126,  868, 899,  744, 775,  620, 651, 496, 527,  372, 403, | 
|  | 248, 279,  124, 155,  900, 931,  869, 900,  776, 807, 745, 776,  652, 683, | 
|  | 621, 652,  528, 559,  497, 528,  404, 435,  373, 404, 280, 311,  249, 280, | 
|  | 156, 187,  125, 156,  932, 963,  901, 932,  870, 901, 808, 839,  777, 808, | 
|  | 746, 777,  684, 715,  653, 684,  622, 653,  560, 591, 529, 560,  498, 529, | 
|  | 436, 467,  405, 436,  374, 405,  312, 343,  281, 312, 250, 281,  188, 219, | 
|  | 157, 188,  126, 157,  964, 995,  933, 964,  902, 933, 871, 902,  840, 871, | 
|  | 809, 840,  778, 809,  747, 778,  716, 747,  685, 716, 654, 685,  623, 654, | 
|  | 592, 623,  561, 592,  530, 561,  499, 530,  468, 499, 437, 468,  406, 437, | 
|  | 375, 406,  344, 375,  313, 344,  282, 313,  251, 282, 220, 251,  189, 220, | 
|  | 158, 189,  127, 158,  965, 996,  934, 965,  903, 934, 841, 872,  810, 841, | 
|  | 779, 810,  717, 748,  686, 717,  655, 686,  593, 624, 562, 593,  531, 562, | 
|  | 469, 500,  438, 469,  407, 438,  345, 376,  314, 345, 283, 314,  221, 252, | 
|  | 190, 221,  159, 190,  966, 997,  935, 966,  842, 873, 811, 842,  718, 749, | 
|  | 687, 718,  594, 625,  563, 594,  470, 501,  439, 470, 346, 377,  315, 346, | 
|  | 222, 253,  191, 222,  967, 998,  843, 874,  719, 750, 595, 626,  471, 502, | 
|  | 347, 378,  223, 254,  872, 903,  748, 779,  624, 655, 500, 531,  376, 407, | 
|  | 252, 283,  904, 935,  873, 904,  780, 811,  749, 780, 656, 687,  625, 656, | 
|  | 532, 563,  501, 532,  408, 439,  377, 408,  284, 315, 253, 284,  936, 967, | 
|  | 905, 936,  874, 905,  812, 843,  781, 812,  750, 781, 688, 719,  657, 688, | 
|  | 626, 657,  564, 595,  533, 564,  502, 533,  440, 471, 409, 440,  378, 409, | 
|  | 316, 347,  285, 316,  254, 285,  968, 999,  937, 968, 906, 937,  875, 906, | 
|  | 844, 875,  813, 844,  782, 813,  751, 782,  720, 751, 689, 720,  658, 689, | 
|  | 627, 658,  596, 627,  565, 596,  534, 565,  503, 534, 472, 503,  441, 472, | 
|  | 410, 441,  379, 410,  348, 379,  317, 348,  286, 317, 255, 286,  969, 1000, | 
|  | 938, 969,  907, 938,  845, 876,  814, 845,  783, 814, 721, 752,  690, 721, | 
|  | 659, 690,  597, 628,  566, 597,  535, 566,  473, 504, 442, 473,  411, 442, | 
|  | 349, 380,  318, 349,  287, 318,  970, 1001, 939, 970, 846, 877,  815, 846, | 
|  | 722, 753,  691, 722,  598, 629,  567, 598,  474, 505, 443, 474,  350, 381, | 
|  | 319, 350,  971, 1002, 847, 878,  723, 754,  599, 630, 475, 506,  351, 382, | 
|  | 876, 907,  752, 783,  628, 659,  504, 535,  380, 411, 908, 939,  877, 908, | 
|  | 784, 815,  753, 784,  660, 691,  629, 660,  536, 567, 505, 536,  412, 443, | 
|  | 381, 412,  940, 971,  909, 940,  878, 909,  816, 847, 785, 816,  754, 785, | 
|  | 692, 723,  661, 692,  630, 661,  568, 599,  537, 568, 506, 537,  444, 475, | 
|  | 413, 444,  382, 413,  972, 1003, 941, 972,  910, 941, 879, 910,  848, 879, | 
|  | 817, 848,  786, 817,  755, 786,  724, 755,  693, 724, 662, 693,  631, 662, | 
|  | 600, 631,  569, 600,  538, 569,  507, 538,  476, 507, 445, 476,  414, 445, | 
|  | 383, 414,  973, 1004, 942, 973,  911, 942,  849, 880, 818, 849,  787, 818, | 
|  | 725, 756,  694, 725,  663, 694,  601, 632,  570, 601, 539, 570,  477, 508, | 
|  | 446, 477,  415, 446,  974, 1005, 943, 974,  850, 881, 819, 850,  726, 757, | 
|  | 695, 726,  602, 633,  571, 602,  478, 509,  447, 478, 975, 1006, 851, 882, | 
|  | 727, 758,  603, 634,  479, 510,  880, 911,  756, 787, 632, 663,  508, 539, | 
|  | 912, 943,  881, 912,  788, 819,  757, 788,  664, 695, 633, 664,  540, 571, | 
|  | 509, 540,  944, 975,  913, 944,  882, 913,  820, 851, 789, 820,  758, 789, | 
|  | 696, 727,  665, 696,  634, 665,  572, 603,  541, 572, 510, 541,  976, 1007, | 
|  | 945, 976,  914, 945,  883, 914,  852, 883,  821, 852, 790, 821,  759, 790, | 
|  | 728, 759,  697, 728,  666, 697,  635, 666,  604, 635, 573, 604,  542, 573, | 
|  | 511, 542,  977, 1008, 946, 977,  915, 946,  853, 884, 822, 853,  791, 822, | 
|  | 729, 760,  698, 729,  667, 698,  605, 636,  574, 605, 543, 574,  978, 1009, | 
|  | 947, 978,  854, 885,  823, 854,  730, 761,  699, 730, 606, 637,  575, 606, | 
|  | 979, 1010, 855, 886,  731, 762,  607, 638,  884, 915, 760, 791,  636, 667, | 
|  | 916, 947,  885, 916,  792, 823,  761, 792,  668, 699, 637, 668,  948, 979, | 
|  | 917, 948,  886, 917,  824, 855,  793, 824,  762, 793, 700, 731,  669, 700, | 
|  | 638, 669,  980, 1011, 949, 980,  918, 949,  887, 918, 856, 887,  825, 856, | 
|  | 794, 825,  763, 794,  732, 763,  701, 732,  670, 701, 639, 670,  981, 1012, | 
|  | 950, 981,  919, 950,  857, 888,  826, 857,  795, 826, 733, 764,  702, 733, | 
|  | 671, 702,  982, 1013, 951, 982,  858, 889,  827, 858, 734, 765,  703, 734, | 
|  | 983, 1014, 859, 890,  735, 766,  888, 919,  764, 795, 920, 951,  889, 920, | 
|  | 796, 827,  765, 796,  952, 983,  921, 952,  890, 921, 828, 859,  797, 828, | 
|  | 766, 797,  984, 1015, 953, 984,  922, 953,  891, 922, 860, 891,  829, 860, | 
|  | 798, 829,  767, 798,  985, 1016, 954, 985,  923, 954, 861, 892,  830, 861, | 
|  | 799, 830,  986, 1017, 955, 986,  862, 893,  831, 862, 987, 1018, 863, 894, | 
|  | 892, 923,  924, 955,  893, 924,  956, 987,  925, 956, 894, 925,  988, 1019, | 
|  | 957, 988,  926, 957,  895, 926,  989, 1020, 958, 989, 927, 958,  990, 1021, | 
|  | 959, 990,  991, 1022, 0,   0, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, av1_default_iscan_4x4[16]) = { | 
|  | 0, 2, 5, 8, 1, 3, 9, 12, 4, 7, 11, 14, 6, 10, 13, 15, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, av1_col_iscan_4x4[16]) = { | 
|  | 0, 3, 7, 11, 1, 5, 9, 12, 2, 6, 10, 14, 4, 8, 13, 15, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, av1_row_iscan_4x4[16]) = { | 
|  | 0, 1, 3, 5, 2, 4, 6, 9, 7, 8, 11, 13, 10, 12, 14, 15, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, av1_col_iscan_8x8[64]) = { | 
|  | 0,  3,  8,  15, 22, 32, 40, 47, 1,  5,  11, 18, 26, 34, 44, 51, | 
|  | 2,  7,  13, 20, 28, 38, 46, 54, 4,  10, 16, 24, 31, 41, 50, 56, | 
|  | 6,  12, 21, 27, 35, 43, 52, 58, 9,  17, 25, 33, 39, 48, 55, 60, | 
|  | 14, 23, 30, 37, 45, 53, 59, 62, 19, 29, 36, 42, 49, 57, 61, 63, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, av1_row_iscan_8x8[64]) = { | 
|  | 0,  1,  2,  5,  8,  12, 19, 24, 3,  4,  7,  10, 15, 20, 30, 39, | 
|  | 6,  9,  13, 16, 21, 27, 37, 46, 11, 14, 17, 23, 28, 34, 44, 52, | 
|  | 18, 22, 25, 31, 35, 41, 50, 57, 26, 29, 33, 38, 43, 49, 55, 59, | 
|  | 32, 36, 42, 47, 51, 54, 60, 61, 40, 45, 48, 53, 56, 58, 62, 63, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, av1_default_iscan_8x8[64]) = { | 
|  | 0,  2,  5,  9,  14, 22, 31, 37, 1,  4,  8,  13, 19, 26, 38, 44, | 
|  | 3,  6,  10, 17, 24, 30, 42, 49, 7,  11, 15, 21, 29, 36, 47, 53, | 
|  | 12, 16, 20, 27, 34, 43, 52, 57, 18, 23, 28, 35, 41, 48, 56, 60, | 
|  | 25, 32, 39, 45, 50, 55, 59, 62, 33, 40, 46, 51, 54, 58, 61, 63, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, av1_col_iscan_16x16[256]) = { | 
|  | 0,  4,  11,  20,  31,  43,  59,  75,  85,  109, 130, 150, 165, 181, 195, 198, | 
|  | 1,  6,  14,  23,  34,  47,  64,  81,  95,  114, 135, 153, 171, 188, 201, 212, | 
|  | 2,  8,  16,  25,  38,  52,  67,  83,  101, 116, 136, 157, 172, 190, 205, 216, | 
|  | 3,  10, 18,  29,  41,  55,  71,  89,  103, 119, 141, 159, 176, 194, 208, 218, | 
|  | 5,  12, 21,  32,  45,  58,  74,  93,  104, 123, 144, 164, 179, 196, 210, 223, | 
|  | 7,  15, 26,  37,  49,  63,  78,  96,  112, 129, 146, 166, 182, 200, 215, 228, | 
|  | 9,  19, 28,  39,  54,  69,  86,  102, 117, 132, 151, 170, 187, 206, 220, 230, | 
|  | 13, 24, 35,  46,  60,  73,  91,  108, 122, 137, 154, 174, 189, 207, 224, 235, | 
|  | 17, 30, 40,  53,  66,  82,  98,  115, 126, 142, 161, 180, 197, 213, 227, 237, | 
|  | 22, 36, 48,  62,  76,  92,  105, 120, 133, 147, 167, 186, 203, 219, 232, 240, | 
|  | 27, 44, 56,  70,  84,  99,  113, 127, 140, 156, 175, 193, 209, 226, 236, 244, | 
|  | 33, 51, 68,  79,  94,  110, 125, 138, 149, 162, 184, 202, 217, 229, 241, 247, | 
|  | 42, 61, 77,  90,  106, 121, 134, 148, 160, 173, 191, 211, 225, 238, 245, 251, | 
|  | 50, 72, 87,  100, 118, 128, 145, 158, 168, 183, 204, 222, 233, 242, 249, 253, | 
|  | 57, 80, 97,  111, 131, 143, 155, 169, 178, 192, 214, 231, 239, 246, 250, 254, | 
|  | 65, 88, 107, 124, 139, 152, 163, 177, 185, 199, 221, 234, 243, 248, 252, 255, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, av1_row_iscan_16x16[256]) = { | 
|  | 0,   1,   2,   4,   6,   9,   12,  17,  22,  29,  36,  43,  54,  64,  76, | 
|  | 86,  3,   5,   7,   11,  15,  19,  25,  32,  38,  48,  59,  68,  84,  99, | 
|  | 115, 130, 8,   10,  13,  18,  23,  27,  33,  42,  51,  60,  72,  88,  103, | 
|  | 119, 142, 167, 14,  16,  20,  26,  31,  37,  44,  53,  61,  73,  85,  100, | 
|  | 116, 135, 161, 185, 21,  24,  30,  35,  40,  47,  55,  65,  74,  81,  94, | 
|  | 112, 133, 154, 179, 205, 28,  34,  39,  45,  50,  58,  67,  77,  87,  96, | 
|  | 106, 121, 146, 169, 196, 212, 41,  46,  49,  56,  63,  70,  79,  90,  98, | 
|  | 107, 122, 138, 159, 182, 207, 222, 52,  57,  62,  69,  75,  83,  93,  102, | 
|  | 110, 120, 134, 150, 176, 195, 215, 226, 66,  71,  78,  82,  91,  97,  108, | 
|  | 113, 127, 136, 148, 168, 188, 202, 221, 232, 80,  89,  92,  101, 105, 114, | 
|  | 125, 131, 139, 151, 162, 177, 192, 208, 223, 234, 95,  104, 109, 117, 123, | 
|  | 128, 143, 144, 155, 165, 175, 190, 206, 219, 233, 239, 111, 118, 124, 129, | 
|  | 140, 147, 157, 164, 170, 181, 191, 203, 224, 230, 240, 243, 126, 132, 137, | 
|  | 145, 153, 160, 174, 178, 184, 197, 204, 216, 231, 237, 244, 246, 141, 149, | 
|  | 156, 166, 172, 180, 189, 199, 200, 210, 220, 228, 238, 242, 249, 251, 152, | 
|  | 163, 171, 183, 186, 193, 201, 211, 214, 218, 227, 236, 245, 247, 252, 253, | 
|  | 158, 173, 187, 194, 198, 209, 213, 217, 225, 229, 235, 241, 248, 250, 254, | 
|  | 255, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, av1_default_iscan_16x16[256]) = { | 
|  | 0,   2,   5,   9,   17,  24,  36,  44,  55,  72,  88,  104, 128, 143, 166, | 
|  | 179, 1,   4,   8,   13,  20,  30,  40,  54,  66,  79,  96,  113, 141, 154, | 
|  | 178, 196, 3,   7,   11,  18,  25,  33,  46,  57,  71,  86,  101, 119, 148, | 
|  | 164, 186, 201, 6,   12,  16,  23,  31,  39,  53,  64,  78,  92,  110, 127, | 
|  | 153, 169, 193, 208, 10,  14,  19,  28,  37,  47,  58,  67,  84,  98,  114, | 
|  | 133, 161, 176, 198, 214, 15,  21,  26,  34,  43,  52,  65,  77,  91,  106, | 
|  | 120, 140, 165, 185, 205, 221, 22,  27,  32,  41,  48,  60,  73,  85,  99, | 
|  | 116, 130, 151, 175, 190, 211, 225, 29,  35,  42,  49,  59,  69,  81,  95, | 
|  | 108, 125, 139, 155, 182, 197, 217, 229, 38,  45,  51,  61,  68,  80,  93, | 
|  | 105, 118, 134, 150, 168, 191, 207, 223, 234, 50,  56,  63,  74,  83,  94, | 
|  | 109, 117, 129, 147, 163, 177, 199, 213, 228, 238, 62,  70,  76,  87,  97, | 
|  | 107, 122, 131, 145, 159, 172, 188, 210, 222, 235, 242, 75,  82,  90,  102, | 
|  | 112, 124, 138, 146, 157, 173, 187, 202, 219, 230, 240, 245, 89,  100, 111, | 
|  | 123, 132, 142, 156, 167, 180, 189, 203, 216, 231, 237, 246, 250, 103, 115, | 
|  | 126, 136, 149, 162, 171, 183, 194, 204, 215, 224, 236, 241, 248, 252, 121, | 
|  | 135, 144, 158, 170, 181, 192, 200, 209, 218, 227, 233, 243, 244, 251, 254, | 
|  | 137, 152, 160, 174, 184, 195, 206, 212, 220, 226, 232, 239, 247, 249, 253, | 
|  | 255, | 
|  | }; | 
|  |  | 
|  | DECLARE_ALIGNED(16, static const int16_t, av1_default_iscan_32x32[1024]) = { | 
|  | 0,    2,    5,    10,   17,   25,   38,   47,   62,   83,   101,  121,  145, | 
|  | 170,  193,  204,  210,  219,  229,  233,  245,  257,  275,  299,  342,  356, | 
|  | 377,  405,  455,  471,  495,  527,  1,    4,    8,    15,   22,   30,   45, | 
|  | 58,   74,   92,   112,  133,  158,  184,  203,  215,  222,  228,  234,  237, | 
|  | 256,  274,  298,  317,  355,  376,  404,  426,  470,  494,  526,  551,  3, | 
|  | 7,    12,   18,   28,   36,   52,   64,   82,   102,  118,  142,  164,  189, | 
|  | 208,  217,  224,  231,  235,  238,  273,  297,  316,  329,  375,  403,  425, | 
|  | 440,  493,  525,  550,  567,  6,    11,   16,   23,   31,   43,   60,   73, | 
|  | 90,   109,  126,  150,  173,  196,  211,  220,  226,  232,  236,  239,  296, | 
|  | 315,  328,  335,  402,  424,  439,  447,  524,  549,  566,  575,  9,    14, | 
|  | 19,   29,   37,   50,   65,   78,   95,   116,  134,  157,  179,  201,  214, | 
|  | 223,  244,  255,  272,  295,  341,  354,  374,  401,  454,  469,  492,  523, | 
|  | 582,  596,  617,  645,  13,   20,   26,   35,   44,   54,   72,   85,   105, | 
|  | 123,  140,  163,  182,  205,  216,  225,  254,  271,  294,  314,  353,  373, | 
|  | 400,  423,  468,  491,  522,  548,  595,  616,  644,  666,  21,   27,   33, | 
|  | 42,   53,   63,   80,   94,   113,  132,  151,  172,  190,  209,  218,  227, | 
|  | 270,  293,  313,  327,  372,  399,  422,  438,  490,  521,  547,  565,  615, | 
|  | 643,  665,  680,  24,   32,   39,   48,   57,   71,   88,   104,  120,  139, | 
|  | 159,  178,  197,  212,  221,  230,  292,  312,  326,  334,  398,  421,  437, | 
|  | 446,  520,  546,  564,  574,  642,  664,  679,  687,  34,   40,   46,   56, | 
|  | 68,   81,   96,   111,  130,  147,  167,  186,  243,  253,  269,  291,  340, | 
|  | 352,  371,  397,  453,  467,  489,  519,  581,  594,  614,  641,  693,  705, | 
|  | 723,  747,  41,   49,   55,   67,   77,   91,   107,  124,  138,  161,  177, | 
|  | 194,  252,  268,  290,  311,  351,  370,  396,  420,  466,  488,  518,  545, | 
|  | 593,  613,  640,  663,  704,  722,  746,  765,  51,   59,   66,   76,   89, | 
|  | 99,   119,  131,  149,  168,  181,  200,  267,  289,  310,  325,  369,  395, | 
|  | 419,  436,  487,  517,  544,  563,  612,  639,  662,  678,  721,  745,  764, | 
|  | 777,  61,   69,   75,   87,   100,  114,  129,  144,  162,  180,  191,  207, | 
|  | 288,  309,  324,  333,  394,  418,  435,  445,  516,  543,  562,  573,  638, | 
|  | 661,  677,  686,  744,  763,  776,  783,  70,   79,   86,   97,   108,  122, | 
|  | 137,  155,  242,  251,  266,  287,  339,  350,  368,  393,  452,  465,  486, | 
|  | 515,  580,  592,  611,  637,  692,  703,  720,  743,  788,  798,  813,  833, | 
|  | 84,   93,   103,  110,  125,  141,  154,  171,  250,  265,  286,  308,  349, | 
|  | 367,  392,  417,  464,  485,  514,  542,  591,  610,  636,  660,  702,  719, | 
|  | 742,  762,  797,  812,  832,  848,  98,   106,  115,  127,  143,  156,  169, | 
|  | 185,  264,  285,  307,  323,  366,  391,  416,  434,  484,  513,  541,  561, | 
|  | 609,  635,  659,  676,  718,  741,  761,  775,  811,  831,  847,  858,  117, | 
|  | 128,  136,  148,  160,  175,  188,  198,  284,  306,  322,  332,  390,  415, | 
|  | 433,  444,  512,  540,  560,  572,  634,  658,  675,  685,  740,  760,  774, | 
|  | 782,  830,  846,  857,  863,  135,  146,  152,  165,  241,  249,  263,  283, | 
|  | 338,  348,  365,  389,  451,  463,  483,  511,  579,  590,  608,  633,  691, | 
|  | 701,  717,  739,  787,  796,  810,  829,  867,  875,  887,  903,  153,  166, | 
|  | 174,  183,  248,  262,  282,  305,  347,  364,  388,  414,  462,  482,  510, | 
|  | 539,  589,  607,  632,  657,  700,  716,  738,  759,  795,  809,  828,  845, | 
|  | 874,  886,  902,  915,  176,  187,  195,  202,  261,  281,  304,  321,  363, | 
|  | 387,  413,  432,  481,  509,  538,  559,  606,  631,  656,  674,  715,  737, | 
|  | 758,  773,  808,  827,  844,  856,  885,  901,  914,  923,  192,  199,  206, | 
|  | 213,  280,  303,  320,  331,  386,  412,  431,  443,  508,  537,  558,  571, | 
|  | 630,  655,  673,  684,  736,  757,  772,  781,  826,  843,  855,  862,  900, | 
|  | 913,  922,  927,  240,  247,  260,  279,  337,  346,  362,  385,  450,  461, | 
|  | 480,  507,  578,  588,  605,  629,  690,  699,  714,  735,  786,  794,  807, | 
|  | 825,  866,  873,  884,  899,  930,  936,  945,  957,  246,  259,  278,  302, | 
|  | 345,  361,  384,  411,  460,  479,  506,  536,  587,  604,  628,  654,  698, | 
|  | 713,  734,  756,  793,  806,  824,  842,  872,  883,  898,  912,  935,  944, | 
|  | 956,  966,  258,  277,  301,  319,  360,  383,  410,  430,  478,  505,  535, | 
|  | 557,  603,  627,  653,  672,  712,  733,  755,  771,  805,  823,  841,  854, | 
|  | 882,  897,  911,  921,  943,  955,  965,  972,  276,  300,  318,  330,  382, | 
|  | 409,  429,  442,  504,  534,  556,  570,  626,  652,  671,  683,  732,  754, | 
|  | 770,  780,  822,  840,  853,  861,  896,  910,  920,  926,  954,  964,  971, | 
|  | 975,  336,  344,  359,  381,  449,  459,  477,  503,  577,  586,  602,  625, | 
|  | 689,  697,  711,  731,  785,  792,  804,  821,  865,  871,  881,  895,  929, | 
|  | 934,  942,  953,  977,  981,  987,  995,  343,  358,  380,  408,  458,  476, | 
|  | 502,  533,  585,  601,  624,  651,  696,  710,  730,  753,  791,  803,  820, | 
|  | 839,  870,  880,  894,  909,  933,  941,  952,  963,  980,  986,  994,  1001, | 
|  | 357,  379,  407,  428,  475,  501,  532,  555,  600,  623,  650,  670,  709, | 
|  | 729,  752,  769,  802,  819,  838,  852,  879,  893,  908,  919,  940,  951, | 
|  | 962,  970,  985,  993,  1000, 1005, 378,  406,  427,  441,  500,  531,  554, | 
|  | 569,  622,  649,  669,  682,  728,  751,  768,  779,  818,  837,  851,  860, | 
|  | 892,  907,  918,  925,  950,  961,  969,  974,  992,  999,  1004, 1007, 448, | 
|  | 457,  474,  499,  576,  584,  599,  621,  688,  695,  708,  727,  784,  790, | 
|  | 801,  817,  864,  869,  878,  891,  928,  932,  939,  949,  976,  979,  984, | 
|  | 991,  1008, 1010, 1013, 1017, 456,  473,  498,  530,  583,  598,  620,  648, | 
|  | 694,  707,  726,  750,  789,  800,  816,  836,  868,  877,  890,  906,  931, | 
|  | 938,  948,  960,  978,  983,  990,  998,  1009, 1012, 1016, 1020, 472,  497, | 
|  | 529,  553,  597,  619,  647,  668,  706,  725,  749,  767,  799,  815,  835, | 
|  | 850,  876,  889,  905,  917,  937,  947,  959,  968,  982,  989,  997,  1003, | 
|  | 1011, 1015, 1019, 1022, 496,  528,  552,  568,  618,  646,  667,  681,  724, | 
|  | 748,  766,  778,  814,  834,  849,  859,  888,  904,  916,  924,  946,  958, | 
|  | 967,  973,  988,  996,  1002, 1006, 1014, 1018, 1021, 1023, | 
|  | }; | 
|  |  | 
|  | const SCAN_ORDER av1_default_scan_orders[TX_SIZES] = { | 
|  | { default_scan_4x4, av1_default_iscan_4x4, default_scan_4x4_neighbors }, | 
|  | { default_scan_8x8, av1_default_iscan_8x8, default_scan_8x8_neighbors }, | 
|  | { default_scan_16x16, av1_default_iscan_16x16, default_scan_16x16_neighbors }, | 
|  | { default_scan_32x32, av1_default_iscan_32x32, default_scan_32x32_neighbors }, | 
|  | }; | 
|  |  | 
|  | const SCAN_ORDER av1_scan_orders[TX_SIZES][TX_TYPES] = { | 
|  | { // TX_4X4 | 
|  | { default_scan_4x4, av1_default_iscan_4x4, default_scan_4x4_neighbors }, | 
|  | { row_scan_4x4, av1_row_iscan_4x4, row_scan_4x4_neighbors }, | 
|  | { col_scan_4x4, av1_col_iscan_4x4, col_scan_4x4_neighbors }, | 
|  | { default_scan_4x4, av1_default_iscan_4x4, default_scan_4x4_neighbors } }, | 
|  | { // TX_8X8 | 
|  | { default_scan_8x8, av1_default_iscan_8x8, default_scan_8x8_neighbors }, | 
|  | { row_scan_8x8, av1_row_iscan_8x8, row_scan_8x8_neighbors }, | 
|  | { col_scan_8x8, av1_col_iscan_8x8, col_scan_8x8_neighbors }, | 
|  | { default_scan_8x8, av1_default_iscan_8x8, default_scan_8x8_neighbors } }, | 
|  | { // TX_16X16 | 
|  | { default_scan_16x16, av1_default_iscan_16x16, | 
|  | default_scan_16x16_neighbors }, | 
|  | { row_scan_16x16, av1_row_iscan_16x16, row_scan_16x16_neighbors }, | 
|  | { col_scan_16x16, av1_col_iscan_16x16, col_scan_16x16_neighbors }, | 
|  | { default_scan_16x16, av1_default_iscan_16x16, | 
|  | default_scan_16x16_neighbors } }, | 
|  | { // TX_32X32 | 
|  | { default_scan_32x32, av1_default_iscan_32x32, | 
|  | default_scan_32x32_neighbors }, | 
|  | { default_scan_32x32, av1_default_iscan_32x32, | 
|  | default_scan_32x32_neighbors }, | 
|  | { default_scan_32x32, av1_default_iscan_32x32, | 
|  | default_scan_32x32_neighbors }, | 
|  | { default_scan_32x32, av1_default_iscan_32x32, | 
|  | default_scan_32x32_neighbors } }, | 
|  | }; |