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Remove unused files and move LUT to .cpp

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This commit is contained in:
Andrew Cassidy 2021-03-08 16:56:54 -08:00
parent 4d82dee240
commit beb3d76a4b
14 changed files with 1001 additions and 16316 deletions
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991
src/rgbcx/BC1/OrderTable.cpp
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@ -321,997 +321,6 @@ const OrderTable<3>::BestOrderArray OrderTable<3>::BestOrders = {
{1, 7, 8, 29, 56, 0, 10, 14, 2, 42, 72, 5, 4, 65, 3, 30, 84, 94, 67, 9, 25, 133, 111, 11, 32, 108, 16, 63, 21, 96, 26, 48}}};
// endregion
// region BestOrderTable4
template <>
const OrderTable<4>::BestOrderArray OrderTable<4>::BestOrders = {{
#if RGBCX_USE_SMALLER_TABLES
{202, 120, 13, 318, 15, 23, 403, 450, 5, 51, 260, 128, 77, 21, 33, 494, 515, 523, 4, 141, 269, 1, 2, 700, 137, 49, 48, 102, 7, 64, 753, 82},
{13, 141, 23, 217, 115, 51, 77, 2, 64, 21, 0, 4, 5, 317, 137, 269, 202, 33, 318, 7, 291, 352, 9, 10, 3, 180, 32, 6, 365, 102, 341, 349},
{29, 58, 262, 1, 52, 74, 6, 171, 5, 287, 151, 334, 27, 500, 75, 26, 331, 223, 53, 635, 220, 19, 50, 45, 46, 17, 14, 396, 163, 409, 324, 70},
{40, 51, 33, 453, 14, 23, 62, 56, 12, 196, 730, 475, 153, 99, 403, 775, 117, 130, 585, 34, 4, 17, 162, 11, 139, 57, 102, 38, 108, 47, 123, 440},
{33, 23, 51, 13, 102, 64, 202, 128, 12, 40, 15, 196, 153, 10, 1, 2, 77, 99, 141, 0, 515, 5, 117, 3, 120, 403, 700, 165, 22, 14, 269, 453},
{13, 23, 51, 4, 77, 141, 202, 33, 115, 64, 32, 128, 0, 11, 177, 40, 15, 102, 2, 217, 7, 137, 269, 21, 90, 59, 515, 1, 180, 403, 22, 6},
{26, 235, 19, 47, 648, 624, 78, 145, 27, 112, 122, 64, 444, 6, 630, 453, 25, 42, 65, 130, 711, 85, 390, 113, 416, 108, 665, 29, 730, 138, 644, 95},
{64, 141, 352, 751, 217, 247, 237, 437, 177, 269, 86, 954, 947, 875, 32, 318, 95, 77, 304, 92, 597, 180, 232, 291, 128, 864, 349, 588, 372, 202, 312, 1},
{642, 898, 180, 638, 901, 341, 82, 197, 10, 951, 15, 515, 165, 762, 700, 253, 811, 753, 752, 365, 143, 479, 244, 569, 8, 110, 351, 873, 55, 31, 499, 116},
{221, 23, 51, 125, 438, 254, 13, 21, 39, 49, 308, 656, 0, 115, 530, 159, 158, 401, 30, 166, 912, 386, 165, 688, 518, 9, 105, 627, 424, 22, 421, 33},
{143, 31, 1, 44, 197, 8, 180, 125, 116, 55, 13, 498, 23, 341, 638, 242, 93, 15, 2, 141, 0, 901, 752, 115, 36, 206, 165, 479, 338, 365, 515, 762},
{12, 23, 51, 13, 14, 15, 37, 99, 515, 38, 700, 117, 2, 196, 134, 153, 753, 64, 54, 33, 128, 120, 21, 0, 328, 5, 139, 82, 453, 719, 457, 1},
{13, 15, 23, 515, 961, 700, 457, 753, 51, 115, 4, 165, 197, 2, 38, 569, 1, 474, 0, 37, 99, 719, 5, 12, 629, 14, 11, 3, 33, 77, 64, 10},
{15, 515, 700, 753, 1, 0, 2, 4, 3, 23, 134, 12, 961, 5, 10, 197, 11, 33, 82, 120, 457, 51, 165, 7, 6, 341, 217, 21, 77, 9, 40, 180},
{13, 51, 23, 457, 719, 961, 730, 401, 165, 453, 0, 117, 386, 15, 134, 1, 758, 153, 12, 54, 515, 99, 11, 2, 700, 5, 753, 4, 308, 33, 6, 899},
{134, 898, 82, 117, 13, 33, 77, 102, 23, 260, 341, 351, 120, 901, 197, 153, 961, 111, 196, 110, 180, 457, 854, 10, 450, 8, 165, 40, 4, 115, 0, 365},
{60, 18, 126, 167, 35, 16, 191, 71, 24, 92, 121, 271, 68, 107, 212, 146, 118, 150, 199, 7, 21, 1, 9, 575, 727, 5, 566, 48, 0, 132, 108, 273},
{62, 136, 129, 123, 128, 41, 162, 17, 249, 211, 214, 789, 618, 710, 38, 678, 248, 507, 57, 64, 152, 269, 119, 3, 177, 183, 597, 106, 4, 179, 216, 90},
{403, 523, 51, 475, 494, 453, 817, 899, 202, 23, 450, 13, 421, 120, 102, 730, 33, 128, 4, 1, 805, 5, 7, 153, 757, 260, 318, 196, 77, 457, 326, 65},
{4, 59, 3, 62, 12, 33, 56, 193, 27, 21, 102, 17, 40, 77, 76, 84, 32, 0, 6, 123, 119, 177, 128, 11, 18, 611, 605, 25, 13, 51, 73, 210},
{43, 20, 319, 422, 414, 945, 0, 7, 819, 61, 5, 376, 325, 173, 804, 904, 470, 693, 97, 707, 14, 49, 22, 104, 147, 107, 95, 32, 426, 1, 330, 577},
{13, 23, 51, 2, 0, 115, 4, 141, 217, 33, 10, 77, 1, 15, 64, 180, 3, 515, 7, 6, 22, 102, 11, 5, 40, 9, 165, 700, 202, 197, 317, 341},
{28, 49, 0, 105, 1, 24, 65, 159, 35, 55, 95, 239, 16, 2, 109, 7, 9, 14, 170, 320, 347, 168, 424, 158, 10, 301, 124, 5, 67, 21, 64, 36},
{15, 515, 700, 753, 0, 1, 13, 2, 117, 4, 12, 10, 5, 165, 457, 3, 9, 134, 11, 7, 6, 51, 77, 64, 961, 82, 33, 197, 14, 341, 120, 141},
{7, 71, 14, 149, 97, 18, 60, 16, 150, 92, 398, 189, 140, 124, 24, 273, 35, 2, 69, 302, 154, 68, 0, 336, 517, 43, 66, 28, 118, 251, 230, 1},
{4, 102, 33, 77, 40, 59, 11, 624, 210, 12, 128, 342, 5, 503, 91, 139, 64, 32, 25, 494, 202, 678, 416, 0, 403, 275, 21, 450, 196, 318, 523, 177},
{25, 19, 42, 6, 122, 813, 256, 235, 85, 26, 436, 53, 297, 573, 680, 390, 445, 63, 27, 416, 80, 233, 65, 73, 389, 283, 45, 605, 194, 17, 250, 343},
{402, 102, 202, 128, 33, 300, 403, 23, 12, 77, 40, 21, 342, 117, 483, 99, 25, 494, 6, 4, 63, 32, 84, 569, 139, 757, 475, 318, 19, 26, 196, 134},
{158, 9, 0, 109, 39, 49, 65, 22, 35, 168, 55, 24, 68, 124, 159, 16, 185, 344, 333, 154, 254, 272, 175, 289, 1, 577, 95, 28, 105, 810, 30, 169},
{197, 180, 115, 237, 498, 165, 2, 5, 287, 546, 400, 3, 61, 34, 509, 13, 297, 80, 341, 52, 45, 186, 58, 881, 23, 873, 468, 176, 64, 17, 311, 250},
{120, 968, 373, 260, 704, 110, 450, 202, 137, 318, 77, 95, 269, 326, 217, 717, 661, 652, 851, 349, 93, 1, 518, 98, 827, 291, 21, 177, 82, 33, 848, 719},
{44, 116, 144, 268, 434, 489, 367, 384, 98, 127, 918, 93, 948, 31, 206, 940, 855, 0, 203, 137, 9, 22, 617, 141, 332, 105, 393, 492, 959, 282, 299, 131},
{13, 77, 23, 33, 51, 0, 64, 141, 102, 4, 2, 115, 1, 6, 202, 15, 10, 128, 269, 7, 177, 180, 3, 40, 22, 11, 515, 217, 117, 318, 700, 137},
{15, 515, 700, 753, 4, 11, 141, 40, 165, 23, 64, 180, 13, 202, 32, 3, 51, 125, 5, 197, 21, 128, 0, 93, 77, 1, 120, 82, 269, 117, 110, 59},
{176, 231, 585, 62, 34, 14, 412, 161, 56, 236, 527, 57, 17, 3, 51, 202, 4, 23, 369, 283, 128, 13, 472, 440, 84, 361, 136, 457, 381, 130, 719, 53},
{9, 0, 180, 217, 237, 101, 141, 352, 88, 100, 230, 64, 175, 317, 115, 498, 68, 39, 30, 1, 702, 83, 213, 36, 365, 208, 752, 13, 252, 321, 952, 546},
{28, 9, 22, 1, 49, 0, 109, 39, 83, 95, 86, 30, 13, 105, 128, 55, 141, 168, 158, 67, 31, 159, 208, 12, 96, 5, 185, 2, 160, 64, 137, 23},
{72, 4, 38, 12, 51, 89, 477, 11, 57, 76, 401, 308, 23, 474, 99, 148, 413, 179, 59, 13, 431, 152, 54, 569, 17, 3, 205, 629, 197, 421, 405, 15},
{457, 13, 23, 961, 15, 51, 515, 700, 165, 12, 753, 629, 11, 1, 719, 117, 0, 3, 2, 37, 569, 197, 40, 328, 33, 5, 153, 134, 99, 64, 38, 196},
{254, 100, 310, 9, 30, 1, 39, 625, 166, 265, 190, 0, 272, 557, 131, 731, 31, 98, 578, 688, 404, 93, 101, 88, 49, 21, 127, 264, 44, 36, 252, 478},
{51, 23, 12, 13, 15, 128, 99, 120, 10, 202, 515, 153, 64, 82, 700, 33, 165, 2, 5, 117, 403, 1, 141, 0, 3, 196, 37, 453, 753, 197, 260, 93},
{38, 99, 542, 139, 453, 117, 196, 23, 457, 13, 328, 111, 37, 134, 961, 11, 12, 51, 40, 775, 587, 401, 474, 54, 153, 477, 41, 629, 33, 475, 14, 277},
{6, 85, 25, 233, 343, 91, 26, 63, 138, 29, 19, 65, 283, 4, 81, 235, 42, 122, 605, 64, 648, 256, 174, 370, 74, 389, 718, 59, 45, 194, 445, 416},
{49, 5, 97, 20, 197, 21, 18, 193, 0, 64, 408, 729, 173, 350, 43, 422, 165, 7, 14, 104, 61, 32, 509, 713, 523, 102, 120, 95, 125, 397, 35, 232},
{144, 116, 268, 434, 384, 489, 367, 206, 93, 855, 940, 44, 98, 332, 617, 127, 959, 911, 137, 282, 203, 31, 22, 219, 141, 9, 131, 276, 417, 0, 1, 120},
{17, 106, 64, 62, 32, 255, 136, 292, 476, 162, 129, 241, 123, 141, 41, 237, 720, 214, 209, 352, 519, 211, 186, 148, 752, 247, 507, 90, 21, 77, 197, 119},
{2, 29, 52, 50, 5, 58, 14, 6, 27, 1, 366, 357, 45, 53, 17, 19, 171, 151, 26, 181, 133, 38, 218, 764, 287, 583, 61, 113, 3, 487, 600, 281},
{130, 59, 196, 412, 381, 730, 711, 236, 77, 210, 202, 402, 453, 99, 401, 108, 361, 803, 291, 283, 153, 4, 57, 51, 128, 183, 14, 719, 503, 117, 23, 11},
{13, 23, 51, 141, 77, 4, 33, 64, 115, 0, 217, 10, 180, 202, 2, 102, 11, 9, 15, 165, 40, 21, 128, 352, 22, 7, 197, 3, 317, 515, 269, 1},
{23, 13, 202, 51, 120, 15, 21, 5, 141, 1, 128, 269, 137, 515, 64, 102, 125, 48, 98, 33, 260, 523, 318, 93, 700, 165, 450, 77, 2, 12, 403, 82},
{1, 2, 14, 46, 29, 67, 38, 52, 5, 171, 58, 24, 103, 69, 96, 70, 83, 181, 54, 75, 163, 223, 16, 45, 112, 309, 155, 0, 186, 35, 18, 108},
{15, 515, 700, 753, 13, 0, 1, 2, 153, 5, 23, 10, 117, 3, 9, 7, 134, 165, 12, 6, 341, 33, 4, 14, 77, 457, 115, 21, 719, 180, 217, 82},
{197, 165, 509, 13, 391, 180, 308, 115, 23, 546, 5, 498, 2, 29, 3, 401, 901, 61, 34, 80, 14, 457, 250, 569, 237, 873, 38, 297, 45, 15, 468, 386},
{19, 73, 27, 250, 200, 714, 444, 472, 26, 53, 34, 17, 813, 322, 283, 390, 128, 297, 78, 123, 432, 14, 436, 136, 106, 690, 57, 122, 389, 80, 503, 3},
{3, 17, 21, 45, 62, 32, 38, 12, 155, 14, 2, 328, 5, 99, 401, 536, 828, 13, 227, 488, 106, 51, 719, 119, 540, 76, 165, 221, 115, 629, 209, 41},
{115, 341, 873, 197, 365, 13, 901, 180, 569, 752, 317, 1, 10, 498, 143, 634, 261, 0, 509, 15, 943, 237, 44, 31, 116, 601, 165, 127, 282, 23, 141, 64},
{453, 51, 23, 403, 33, 421, 475, 102, 15, 153, 196, 515, 13, 700, 117, 523, 12, 40, 753, 21, 4, 134, 0, 494, 670, 899, 22, 801, 730, 10, 11, 401},
{23, 13, 51, 33, 12, 117, 153, 134, 453, 196, 15, 99, 515, 40, 14, 700, 128, 102, 11, 753, 77, 64, 403, 202, 0, 401, 475, 37, 65, 2, 3, 38},
{2, 7, 5, 14, 70, 1, 29, 61, 52, 45, 6, 112, 66, 16, 21, 32, 592, 46, 38, 135, 87, 58, 186, 315, 290, 128, 113, 0, 64, 48, 227, 23},
{33, 23, 102, 51, 128, 13, 64, 202, 141, 1, 77, 10, 153, 40, 196, 117, 2, 3, 0, 5, 15, 269, 403, 12, 137, 134, 318, 165, 120, 6, 453, 99},
{16, 92, 7, 20, 43, 35, 126, 71, 60, 14, 107, 18, 68, 97, 0, 121, 279, 149, 24, 246, 191, 48, 118, 575, 55, 140, 362, 783, 230, 150, 375, 566},
{13, 23, 4, 33, 77, 64, 51, 102, 141, 128, 32, 10, 0, 202, 40, 115, 59, 22, 90, 11, 177, 21, 291, 6, 7, 318, 180, 117, 137, 2, 95, 165},
{507, 162, 129, 41, 4, 211, 62, 38, 123, 59, 57, 248, 183, 130, 99, 11, 3, 361, 202, 17, 402, 556, 266, 305, 803, 210, 128, 184, 152, 136, 313, 117},
{643, 123, 193, 650, 802, 18, 25, 389, 718, 256, 65, 289, 84, 91, 619, 511, 415, 90, 235, 63, 57, 510, 324, 216, 862, 102, 6, 183, 108, 397, 217, 736},
{13, 23, 15, 1, 515, 51, 0, 2, 700, 5, 753, 165, 141, 115, 12, 3, 4, 180, 21, 197, 457, 7, 6, 10, 120, 9, 33, 202, 77, 32, 8, 11},
{23, 51, 13, 453, 64, 403, 12, 21, 5, 202, 128, 475, 165, 141, 523, 95, 125, 115, 3, 1, 4, 730, 120, 32, 2, 494, 180, 719, 457, 197, 450, 401},
{204, 74, 135, 66, 6, 174, 192, 7, 138, 172, 85, 353, 348, 580, 280, 97, 95, 500, 29, 64, 426, 32, 87, 889, 65, 81, 25, 2, 52, 43, 568, 673},
{35, 0, 68, 69, 24, 9, 1, 16, 65, 103, 149, 133, 18, 114, 28, 50, 83, 2, 189, 7, 46, 14, 101, 336, 175, 124, 251, 55, 71, 218, 38, 238},
{16, 101, 0, 118, 9, 18, 24, 68, 35, 154, 71, 124, 60, 212, 191, 520, 55, 806, 694, 167, 28, 39, 364, 375, 1, 346, 252, 65, 604, 302, 22, 21},
{0, 9, 16, 35, 1, 24, 68, 18, 65, 21, 103, 67, 13, 149, 28, 189, 71, 23, 101, 238, 114, 7, 335, 133, 486, 141, 22, 212, 48, 50, 30, 118},
{13, 202, 23, 77, 33, 51, 128, 5, 21, 141, 115, 32, 102, 64, 4, 0, 318, 269, 10, 15, 291, 2, 494, 177, 11, 217, 3, 515, 22, 137, 6, 700},
{16, 92, 60, 35, 7, 18, 24, 68, 150, 149, 14, 71, 0, 375, 97, 126, 118, 107, 230, 191, 246, 273, 140, 55, 175, 653, 9, 575, 2, 28, 566, 517},
{76, 90, 21, 179, 316, 148, 205, 32, 464, 288, 184, 257, 245, 1, 89, 2, 460, 57, 152, 45, 38, 358, 645, 5, 12, 449, 350, 48, 37, 17, 4, 14},
{19, 27, 26, 813, 80, 297, 17, 495, 436, 53, 73, 200, 4, 378, 250, 59, 106, 25, 45, 128, 361, 42, 113, 469, 122, 390, 77, 40, 736, 6, 11, 136},
{6, 26, 235, 138, 19, 145, 112, 70, 331, 262, 25, 42, 52, 624, 27, 453, 122, 47, 500, 78, 648, 85, 29, 2, 630, 632, 409, 113, 50, 226, 108, 75},
{7, 16, 14, 24, 92, 35, 18, 2, 46, 9, 60, 140, 0, 87, 50, 5, 54, 13, 12, 38, 171, 23, 126, 21, 58, 64, 1, 70, 128, 71, 220, 163},
{90, 205, 257, 184, 32, 179, 460, 5, 245, 45, 2, 288, 769, 524, 57, 21, 152, 229, 17, 1, 497, 4, 292, 59, 619, 452, 432, 76, 476, 11, 266, 14},
{15, 515, 700, 753, 4, 5, 11, 141, 13, 1, 33, 3, 0, 128, 202, 23, 180, 21, 2, 64, 269, 32, 117, 134, 120, 40, 102, 318, 153, 17, 137, 352},
{47, 130, 711, 108, 453, 412, 730, 196, 390, 283, 78, 27, 51, 183, 381, 236, 128, 200, 719, 14, 153, 472, 503, 34, 59, 250, 3, 4, 57, 803, 123, 432},
{12, 277, 51, 474, 111, 153, 23, 99, 13, 37, 961, 94, 629, 542, 569, 431, 79, 139, 38, 134, 117, 453, 33, 188, 196, 40, 115, 15, 11, 157, 401, 515},
{17, 495, 469, 106, 26, 378, 80, 27, 161, 483, 19, 742, 527, 436, 383, 862, 73, 136, 53, 814, 297, 6, 119, 84, 62, 56, 25, 3, 209, 611, 4, 128},
{81, 681, 636, 91, 0, 750, 370, 104, 718, 138, 18, 693, 173, 784, 29, 397, 348, 74, 192, 673, 174, 65, 6, 207, 64, 280, 306, 52, 671, 32, 355, 319},
{15, 515, 700, 753, 33, 77, 4, 102, 115, 117, 40, 13, 1, 153, 134, 11, 5, 217, 23, 196, 2, 21, 3, 317, 32, 365, 0, 341, 291, 59, 12, 51},
{0, 9, 28, 35, 68, 1, 65, 67, 101, 39, 69, 175, 16, 238, 13, 22, 96, 124, 18, 24, 251, 30, 55, 12, 23, 2, 50, 141, 114, 5, 154, 103},
{23, 33, 77, 13, 117, 40, 11, 102, 64, 4, 51, 403, 153, 453, 10, 0, 196, 134, 128, 65, 12, 291, 86, 99, 95, 59, 15, 141, 202, 180, 137, 719},
{214, 90, 289, 6, 874, 64, 25, 65, 235, 42, 751, 249, 256, 312, 194, 85, 746, 875, 174, 32, 525, 288, 519, 835, 247, 348, 233, 544, 217, 524, 437, 352},
{1, 22, 2, 0, 36, 67, 28, 5, 49, 95, 12, 50, 168, 83, 105, 55, 7, 9, 14, 194, 103, 23, 114, 21, 584, 46, 10, 13, 38, 69, 208, 159},
{269, 141, 13, 202, 33, 180, 318, 77, 291, 137, 102, 352, 128, 23, 349, 51, 31, 217, 372, 317, 125, 197, 44, 21, 11, 5, 901, 1, 18, 0, 4, 494},
{435, 144, 274, 88, 203, 418, 30, 1, 190, 410, 96, 778, 100, 530, 521, 326, 466, 795, 686, 166, 960, 321, 382, 264, 367, 822, 131, 31, 692, 9, 213, 93},
{76, 72, 90, 21, 37, 179, 12, 205, 32, 428, 148, 38, 308, 405, 4, 413, 57, 184, 749, 245, 316, 221, 54, 645, 288, 1, 152, 155, 464, 257, 2, 14},
{77, 33, 64, 102, 13, 141, 23, 2, 40, 1, 51, 10, 0, 115, 6, 180, 202, 128, 4, 3, 177, 269, 15, 7, 22, 165, 291, 14, 217, 318, 137, 11},
{397, 81, 4, 32, 65, 788, 693, 804, 681, 11, 249, 21, 91, 64, 690, 494, 3, 0, 422, 56, 348, 725, 194, 123, 23, 59, 523, 319, 61, 510, 95, 90},
{60, 126, 16, 7, 92, 121, 314, 246, 35, 107, 150, 132, 14, 146, 24, 18, 199, 298, 232, 71, 359, 140, 672, 97, 392, 649, 5, 423, 95, 21, 22, 388},
{15, 515, 141, 217, 115, 700, 13, 23, 120, 317, 753, 180, 33, 260, 110, 137, 341, 51, 1, 365, 4, 77, 64, 202, 0, 40, 36, 352, 197, 269, 10, 21},
{111, 134, 117, 474, 23, 13, 961, 12, 569, 431, 37, 15, 51, 115, 515, 700, 277, 99, 753, 38, 197, 405, 457, 4, 72, 94, 629, 45, 11, 89, 54, 148},
{23, 13, 51, 5, 1, 15, 2, 21, 12, 202, 141, 0, 515, 165, 120, 32, 4, 64, 700, 3, 115, 197, 269, 125, 753, 7, 9, 128, 6, 180, 453, 403},
{13, 141, 4, 23, 5, 2, 115, 217, 202, 51, 180, 137, 269, 352, 77, 1, 317, 3, 21, 318, 0, 15, 9, 64, 10, 197, 11, 341, 33, 515, 752, 7},
{165, 125, 197, 13, 391, 21, 23, 558, 48, 380, 97, 120, 298, 33, 14, 426, 66, 115, 32, 386, 900, 180, 6, 98, 357, 237, 326, 509, 51, 278, 221, 457},
{120, 82, 15, 260, 515, 1, 351, 77, 450, 700, 13, 21, 141, 23, 753, 202, 217, 93, 110, 33, 51, 854, 5, 128, 326, 102, 137, 180, 817, 48, 269, 352},
{23, 13, 15, 51, 515, 700, 961, 753, 0, 457, 1, 2, 4, 115, 10, 453, 569, 5, 33, 165, 11, 719, 14, 40, 64, 197, 3, 21, 474, 629, 38, 401},
{264, 166, 39, 30, 9, 100, 435, 254, 93, 921, 190, 363, 1, 625, 411, 382, 897, 656, 203, 478, 404, 812, 438, 110, 473, 88, 18, 691, 156, 141, 274, 272},
{9, 0, 252, 100, 166, 39, 101, 265, 364, 68, 88, 329, 520, 18, 419, 676, 118, 167, 404, 604, 16, 1, 21, 30, 212, 158, 553, 49, 382, 274, 48, 13},
{15, 515, 700, 753, 4, 11, 141, 5, 3, 13, 202, 1, 180, 21, 2, 165, 269, 23, 40, 64, 0, 318, 12, 32, 128, 51, 77, 117, 523, 197, 120, 457},
{24, 1, 2, 69, 35, 16, 67, 18, 14, 50, 0, 46, 68, 9, 38, 7, 133, 71, 83, 149, 28, 108, 189, 218, 65, 114, 238, 29, 75, 54, 5, 96},
{90, 289, 214, 64, 874, 13, 77, 712, 66, 751, 4, 23, 51, 192, 32, 0, 202, 194, 312, 177, 33, 65, 234, 104, 875, 288, 59, 5, 835, 416, 102, 95},
{0, 9, 49, 127, 98, 31, 301, 28, 371, 159, 1, 395, 512, 737, 158, 761, 916, 623, 16, 44, 242, 39, 170, 18, 293, 105, 24, 272, 101, 22, 23, 385},
{17, 62, 136, 214, 123, 129, 32, 292, 119, 209, 710, 106, 141, 162, 128, 64, 45, 4, 77, 249, 11, 618, 211, 3, 207, 130, 519, 183, 38, 177, 21, 269},
{5, 107, 581, 356, 279, 32, 441, 362, 493, 660, 13, 298, 0, 534, 49, 147, 21, 22, 132, 121, 97, 423, 7, 590, 259, 683, 14, 786, 126, 508, 60, 246},
{51, 13, 15, 730, 453, 23, 515, 719, 386, 457, 12, 700, 403, 475, 899, 1, 6, 523, 753, 421, 99, 401, 165, 33, 2, 19, 361, 5, 0, 670, 120, 27},
{49, 28, 9, 159, 272, 22, 254, 131, 158, 327, 95, 105, 0, 39, 35, 168, 347, 286, 374, 55, 65, 627, 424, 912, 68, 578, 1, 24, 239, 175, 688, 169},
{15, 515, 700, 33, 753, 4, 77, 141, 341, 317, 1, 10, 13, 180, 102, 22, 40, 117, 115, 365, 5, 901, 23, 197, 134, 11, 217, 351, 64, 82, 21, 137},
{134, 15, 13, 515, 23, 700, 12, 753, 51, 474, 37, 961, 197, 10, 457, 569, 4, 0, 99, 2, 115, 38, 165, 153, 94, 3, 139, 11, 1, 82, 33, 5},
{7, 2, 20, 58, 5, 14, 128, 66, 6, 29, 32, 43, 21, 52, 16, 38, 631, 61, 74, 97, 46, 135, 113, 25, 202, 192, 13, 0, 884, 45, 112, 87},
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{968, 967, 966, 965, 964, 963, 962, 961, 960, 959, 958, 957, 956, 955, 954, 953,
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{33, 77, 102, 64, 13, 23, 128, 51, 141, 202, 1, 40, 0, 2, 117, 10, 15, 4, 6, 318, 269, 134, 22, 515, 180, 115, 177, 153, 137, 196, 3, 700},
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{16, 24, 35, 18, 7, 0, 50, 1, 9, 14, 75, 69, 2, 5, 12, 21, 60, 13, 67, 71, 23, 48, 10, 108, 223, 181, 189, 103, 46, 64, 92, 51},
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{66, 74, 7, 173, 174, 29, 192, 2, 222, 20, 226, 43, 353, 52, 712, 6, 0, 138, 500, 204, 97, 145, 64, 104, 426, 673, 355, 90, 25, 5, 65, 87},
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{1, 22, 2, 14, 0, 28, 7, 168, 67, 49, 65, 24, 36, 95, 5, 105, 55, 35, 12, 46, 69, 16, 114, 159, 194, 50, 10, 9, 158, 83, 164, 109},
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{18, 16, 21, 23, 48, 13, 24, 35, 121, 5, 156, 60, 51, 1, 7, 132, 141, 221, 163, 115, 0, 271, 447, 340, 363, 202, 125, 71, 2, 781, 22, 698},
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{2, 1, 77, 141, 33, 64, 3, 102, 0, 23, 13, 5, 128, 10, 6, 15, 180, 202, 269, 40, 51, 515, 7, 165, 137, 117, 318, 4, 700, 153, 197, 352},
{68, 212, 0, 124, 101, 9, 154, 16, 562, 191, 21, 149, 65, 24, 35, 1, 118, 167, 818, 350, 520, 100, 722, 841, 264, 71, 13, 302, 478, 23, 375, 346},
{98, 23, 48, 598, 13, 293, 541, 21, 125, 121, 51, 807, 0, 31, 35, 259, 126, 7, 386, 1, 223, 783, 10, 107, 199, 20, 221, 144, 342, 963, 49, 64},
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{2, 1, 5, 61, 29, 7, 58, 45, 14, 6, 425, 32, 70, 52, 290, 738, 207, 21, 72, 112, 66, 76, 655, 17, 186, 46, 64, 263, 38, 0, 128, 87},
{39, 265, 9, 100, 1, 333, 363, 101, 18, 411, 447, 254, 166, 310, 31, 98, 264, 30, 639, 404, 156, 286, 16, 93, 593, 203, 272, 682, 0, 905, 44, 821},
{6, 2, 1, 19, 29, 51, 26, 108, 25, 74, 5, 23, 14, 114, 13, 386, 133, 103, 42, 66, 453, 70, 309, 138, 719, 324, 65, 38, 64, 96, 52, 75},
{20, 43, 356, 107, 49, 858, 595, 7, 414, 359, 0, 5, 392, 319, 97, 612, 422, 819, 14, 376, 173, 246, 22, 470, 147, 427, 230, 92, 197, 33, 683, 95},
{0, 9, 68, 35, 65, 67, 114, 101, 28, 1, 124, 175, 336, 69, 154, 103, 83, 24, 189, 133, 39, 16, 50, 7, 2, 149, 55, 251, 18, 345, 230, 36},
{23, 13, 51, 15, 0, 1, 515, 115, 165, 2, 5, 12, 700, 202, 4, 21, 141, 457, 753, 197, 10, 3, 180, 120, 32, 9, 318, 11, 453, 64, 6, 269},
{121, 195, 60, 16, 126, 107, 98, 271, 146, 407, 132, 35, 1, 167, 199, 223, 493, 191, 279, 20, 18, 5, 43, 7, 21, 92, 48, 393, 0, 362, 212, 467},
{31, 44, 299, 116, 393, 144, 492, 456, 268, 22, 105, 0, 367, 918, 384, 434, 127, 489, 98, 9, 963, 125, 242, 948, 1, 28, 206, 49, 36, 51, 93, 293},
{23, 13, 457, 51, 165, 401, 719, 758, 197, 453, 961, 629, 308, 14, 15, 12, 730, 3, 386, 569, 391, 29, 739, 515, 34, 828, 832, 901, 115, 514, 670, 341},
{105, 36, 131, 22, 180, 115, 341, 127, 169, 1, 9, 31, 64, 98, 44, 365, 317, 141, 272, 143, 160, 55, 219, 86, 197, 776, 239, 187, 0, 535, 13, 752},
{1, 6, 2, 14, 66, 25, 29, 5, 108, 67, 65, 114, 19, 38, 26, 52, 74, 7, 24, 18, 69, 86, 36, 388, 64, 51, 17, 83, 23, 46, 42, 75},
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{283, 503, 128, 432, 26, 193, 63, 269, 789, 529, 102, 122, 389, 275, 678, 6, 25, 318, 445, 4, 342, 27, 573, 605, 177, 862, 643, 291, 216, 57, 235, 59},
{2, 1, 29, 75, 69, 52, 14, 6, 46, 74, 87, 7, 220, 226, 278, 38, 135, 66, 267, 70, 16, 262, 25, 24, 380, 324, 357, 140, 67, 394, 97, 222},
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{475, 421, 403, 899, 51, 805, 523, 958, 453, 817, 23, 615, 401, 801, 120, 326, 202, 670, 494, 730, 450, 386, 115, 629, 260, 576, 77, 365, 569, 0, 165, 13},
{7, 20, 14, 128, 77, 97, 112, 202, 2, 177, 16, 415, 269, 318, 275, 66, 107, 43, 141, 414, 135, 38, 307, 10, 58, 0, 6, 291, 32, 5, 4, 40},
{24, 14, 7, 0, 2, 1, 22, 28, 16, 65, 168, 124, 35, 67, 108, 109, 18, 49, 10, 149, 69, 158, 5, 95, 289, 12, 55, 6, 36, 71, 46, 21},
{26, 80, 27, 73, 122, 25, 19, 17, 6, 42, 684, 209, 445, 573, 667, 106, 45, 690, 4, 611, 255, 680, 297, 495, 65, 59, 128, 119, 483, 113, 64, 53},
{107, 259, 362, 376, 465, 20, 470, 147, 595, 534, 612, 683, 660, 43, 5, 49, 581, 0, 858, 35, 427, 246, 97, 786, 178, 356, 14, 21, 142, 878, 7, 279},
{131, 30, 228, 190, 856, 406, 224, 88, 219, 530, 863, 613, 778, 274, 944, 816, 187, 39, 100, 160, 258, 31, 44, 93, 1, 321, 539, 36, 871, 137, 435, 531},
{113, 6, 311, 25, 45, 491, 80, 611, 27, 26, 209, 667, 17, 73, 122, 42, 684, 396, 19, 85, 106, 5, 614, 4, 2, 255, 151, 29, 1, 64, 648, 61},
{15, 515, 700, 753, 0, 1, 23, 51, 120, 2, 13, 82, 5, 260, 9, 4, 341, 77, 180, 115, 141, 10, 7, 12, 450, 8, 202, 901, 197, 351, 165, 93},
{219, 127, 98, 258, 395, 421, 924, 293, 242, 201, 697, 105, 276, 51, 308, 23, 453, 272, 401, 944, 512, 137, 13, 31, 284, 567, 386, 365, 116, 131, 964, 125},
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{129, 123, 17, 257, 162, 184, 205, 249, 183, 769, 5, 80, 3, 4, 229, 130, 119, 45, 90, 99, 618, 106, 57, 497, 12, 128, 2, 84, 59, 152, 27, 40},
{33, 102, 23, 77, 64, 128, 51, 13, 0, 202, 10, 141, 40, 15, 1, 22, 117, 137, 2, 86, 4, 403, 269, 153, 515, 196, 65, 11, 700, 115, 99, 5},
{7, 14, 2, 16, 172, 107, 46, 92, 5, 135, 35, 202, 294, 87, 38, 232, 29, 97, 20, 21, 24, 1, 60, 220, 66, 43, 12, 0, 126, 52, 54, 70},
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{141, 352, 217, 137, 0, 180, 202, 349, 9, 269, 23, 51, 115, 291, 77, 372, 13, 317, 120, 752, 365, 351, 93, 22, 2, 341, 64, 10, 82, 854, 28, 18},
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{25, 151, 6, 145, 122, 29, 174, 45, 113, 74, 4, 665, 42, 138, 2, 614, 416, 287, 19, 348, 746, 0, 66, 26, 1, 7, 64, 243, 311, 396, 81, 624},
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{9, 254, 0, 49, 272, 131, 39, 159, 688, 101, 105, 578, 518, 158, 286, 28, 327, 333, 68, 224, 252, 219, 344, 16, 22, 1, 716, 31, 30, 228, 24, 890},
{16, 7, 35, 60, 18, 20, 14, 68, 9, 0, 28, 118, 43, 92, 126, 55, 107, 2, 101, 154, 24, 71, 5, 202, 121, 109, 22, 252, 21, 97, 1, 621},
{15, 515, 700, 753, 13, 1, 341, 2, 0, 4, 3, 5, 11, 23, 10, 33, 117, 12, 901, 197, 6, 134, 77, 8, 165, 317, 21, 365, 217, 7, 17, 40},
{78, 19, 444, 47, 26, 390, 27, 453, 130, 813, 108, 730, 711, 65, 412, 122, 51, 680, 113, 235, 690, 196, 630, 283, 128, 236, 14, 64, 73, 53, 200, 445},
{2, 7, 29, 5, 61, 6, 45, 1, 66, 113, 112, 14, 52, 315, 738, 128, 32, 151, 74, 16, 20, 64, 70, 21, 592, 0, 25, 4, 425, 43, 491, 222},
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{92, 16, 7, 60, 126, 24, 140, 35, 14, 232, 18, 121, 246, 71, 46, 267, 172, 150, 107, 314, 132, 146, 230, 2, 278, 108, 330, 199, 236, 5, 38, 572},
{13, 115, 197, 538, 569, 341, 98, 55, 165, 127, 365, 762, 219, 286, 844, 23, 170, 206, 734, 638, 535, 901, 169, 253, 629, 0, 873, 509, 180, 10, 332, 258},
{58, 151, 74, 53, 287, 27, 29, 396, 6, 70, 2, 73, 5, 52, 112, 26, 651, 1, 297, 113, 17, 75, 19, 45, 334, 445, 145, 34, 315, 549, 436, 331},
{214, 289, 90, 874, 104, 751, 64, 65, 312, 835, 204, 249, 750, 194, 74, 81, 875, 32, 519, 288, 348, 0, 174, 247, 636, 715, 138, 192, 784, 6, 524, 280},
{9, 39, 28, 35, 30, 0, 166, 49, 1, 175, 439, 158, 64, 346, 36, 101, 67, 364, 86, 88, 274, 100, 168, 55, 23, 10, 420, 22, 190, 141, 505, 180},
{341, 901, 15, 515, 700, 753, 1, 365, 10, 0, 569, 180, 2, 197, 115, 31, 165, 3, 5, 4, 44, 22, 317, 13, 9, 951, 23, 253, 116, 143, 762, 93},
{120, 202, 77, 450, 260, 15, 128, 318, 102, 515, 494, 13, 817, 700, 269, 5, 403, 51, 1, 33, 23, 753, 82, 326, 141, 342, 291, 137, 21, 523, 351, 32},
{13, 115, 241, 64, 180, 32, 125, 197, 165, 4, 118, 22, 21, 23, 16, 247, 237, 28, 225, 191, 95, 141, 167, 5, 0, 341, 288, 35, 459, 18, 177, 24},
{16, 24, 35, 14, 1, 2, 7, 69, 18, 46, 60, 50, 267, 140, 71, 189, 108, 38, 75, 92, 0, 5, 9, 230, 67, 21, 309, 335, 54, 236, 394, 220},
{15, 515, 700, 753, 898, 180, 901, 341, 197, 638, 10, 165, 33, 1, 115, 4, 77, 365, 317, 13, 102, 217, 117, 0, 5, 2, 253, 3, 82, 569, 21, 752},
{193, 523, 18, 84, 56, 730, 233, 65, 4, 817, 90, 33, 643, 403, 91, 511, 453, 240, 59, 11, 214, 51, 719, 196, 153, 475, 32, 123, 64, 847, 102, 561},
{112, 29, 151, 2, 74, 6, 66, 7, 222, 145, 287, 45, 5, 624, 52, 25, 113, 416, 58, 122, 19, 70, 186, 204, 4, 87, 644, 549, 337, 884, 32, 0},
{13, 0, 23, 2, 1, 15, 33, 3, 77, 515, 141, 5, 4, 217, 10, 51, 64, 180, 700, 115, 6, 117, 11, 7, 753, 40, 102, 165, 197, 22, 317, 153},
{28, 0, 1, 67, 65, 9, 2, 114, 83, 69, 103, 50, 36, 22, 55, 24, 46, 14, 124, 109, 35, 7, 16, 38, 133, 160, 389, 323, 18, 12, 154, 5},
{121, 132, 18, 167, 271, 146, 101, 363, 621, 9, 411, 647, 16, 354, 520, 60, 212, 932, 1, 806, 55, 0, 195, 446, 68, 35, 31, 364, 777, 252, 407, 118},
{26, 6, 85, 396, 122, 624, 25, 19, 42, 445, 64, 648, 573, 416, 174, 680, 665, 214, 45, 348, 90, 65, 194, 145, 113, 881, 138, 289, 112, 436, 297, 544},
{16, 146, 18, 92, 24, 199, 60, 71, 121, 126, 35, 108, 156, 953, 271, 674, 132, 7, 32, 640, 360, 246, 649, 118, 21, 95, 5, 517, 14, 9, 1, 314},
{51, 13, 23, 453, 475, 730, 719, 15, 457, 403, 64, 115, 33, 95, 4, 523, 3, 12, 21, 6, 899, 102, 5, 128, 401, 202, 11, 141, 308, 515, 22, 125},
{151, 396, 6, 53, 27, 113, 58, 26, 73, 112, 74, 287, 45, 29, 297, 19, 145, 70, 138, 445, 315, 436, 34, 2, 17, 573, 5, 61, 549, 491, 1, 80},
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{16, 60, 92, 35, 126, 121, 7, 150, 246, 18, 107, 1, 598, 24, 167, 195, 14, 97, 71, 279, 98, 441, 191, 199, 517, 146, 356, 223, 298, 271, 230, 0},
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{2, 6, 5, 207, 292, 76, 1, 119, 45, 32, 17, 29, 61, 306, 790, 58, 240, 106, 14, 64, 214, 151, 476, 710, 7, 72, 84, 128, 4, 179, 70, 25},
{51, 23, 221, 254, 115, 13, 438, 530, 125, 48, 21, 39, 541, 960, 386, 49, 1, 613, 15, 840, 228, 308, 627, 131, 688, 401, 5, 326, 421, 158, 165, 83},
{1, 5, 2, 0, 12, 22, 21, 36, 10, 14, 48, 86, 23, 13, 32, 54, 3, 4, 28, 65, 51, 50, 137, 37, 208, 114, 9, 38, 17, 7, 281, 202},
{363, 23, 447, 182, 296, 340, 1, 93, 698, 478, 379, 156, 284, 144, 18, 269, 21, 98, 141, 70, 668, 411, 664, 658, 110, 914, 67, 937, 180, 691, 335, 291},
{17, 32, 45, 498, 41, 115, 180, 197, 106, 62, 54, 38, 546, 165, 13, 155, 468, 509, 341, 243, 241, 217, 542, 15, 57, 536, 428, 51, 117, 721, 292, 129},
{32, 95, 64, 246, 22, 92, 180, 13, 5, 652, 125, 241, 638, 237, 7, 49, 4, 126, 21, 115, 197, 296, 888, 316, 0, 165, 774, 23, 16, 392, 1, 534},
{15, 515, 700, 753, 33, 341, 13, 217, 4, 141, 77, 23, 180, 317, 1, 10, 102, 351, 82, 115, 40, 5, 854, 21, 137, 11, 352, 901, 365, 117, 197, 0},
{15, 120, 1, 82, 93, 217, 515, 260, 77, 141, 13, 110, 700, 351, 352, 23, 180, 753, 21, 854, 202, 317, 64, 349, 269, 51, 165, 137, 5, 128, 291, 36},
{13, 23, 51, 141, 77, 0, 33, 4, 115, 64, 2, 10, 102, 202, 217, 128, 1, 177, 269, 11, 7, 22, 6, 21, 32, 9, 180, 40, 15, 3, 165, 318},
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{20, 29, 7, 2, 77, 416, 6, 128, 33, 5, 0, 113, 104, 32, 43, 13, 491, 66, 23, 21, 102, 51, 74, 210, 202, 525, 64, 318, 10, 81, 174, 14},
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{80, 6, 17, 209, 106, 26, 483, 113, 19, 469, 255, 25, 378, 27, 495, 833, 45, 64, 161, 2, 61, 667, 76, 742, 32, 90, 445, 5, 814, 65, 887, 119},
{98, 223, 393, 1, 354, 834, 195, 791, 447, 697, 284, 293, 360, 541, 781, 156, 51, 807, 18, 664, 421, 411, 163, 668, 48, 31, 591, 765, 883, 386, 948, 23},
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{15, 515, 700, 13, 1, 753, 2, 0, 23, 341, 3, 5, 4, 10, 51, 11, 33, 165, 6, 7, 115, 197, 12, 64, 180, 153, 217, 77, 9, 569, 901, 317},
{13, 23, 202, 51, 5, 21, 403, 15, 120, 64, 1, 450, 128, 141, 12, 523, 33, 165, 494, 125, 2, 515, 269, 7, 48, 102, 318, 95, 260, 180, 453, 197},
{16, 18, 24, 60, 71, 92, 146, 246, 199, 35, 140, 7, 9, 118, 121, 108, 167, 230, 126, 132, 0, 640, 156, 14, 68, 133, 267, 360, 649, 271, 64, 55},
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{16, 18, 35, 24, 0, 60, 158, 7, 22, 68, 14, 49, 109, 159, 55, 9, 28, 71, 2, 10, 5, 105, 1, 118, 329, 13, 344, 23, 92, 20, 21, 126},
{15, 13, 515, 700, 23, 0, 753, 1, 51, 2, 4, 10, 77, 5, 3, 197, 115, 165, 961, 202, 9, 457, 180, 12, 141, 22, 33, 120, 6, 11, 318, 31},
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{142, 178, 878, 234, 132, 786, 195, 202, 77, 416, 147, 929, 146, 522, 167, 259, 687, 639, 450, 271, 626, 481, 590, 5, 198, 212, 771, 49, 0, 465, 315, 427},
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{230, 699, 854, 473, 450, 351, 831, 137, 855, 217, 352, 704, 800, 202, 251, 498,
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{5, 17, 2, 3, 21, 45, 14, 155, 48, 32, 38, 1, 328, 181, 186, 46, 23, 51, 12, 61, 227, 29, 106, 54, 99, 133, 62, 832, 13, 37, 514, 543},
{131, 613, 30, 224, 228, 716, 274, 100, 827, 406, 219, 856, 39, 190, 31, 88, 1, 166, 9, 44, 829, 863, 931, 93, 0, 187, 625, 924, 127, 98, 137, 254},
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{13, 23, 2, 0, 51, 4, 1, 115, 141, 3, 5, 180, 33, 217, 77, 9, 202, 11, 7, 15, 10, 6, 317, 64, 21, 197, 515, 165, 102, 128, 22, 269},
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{13, 23, 115, 1, 0, 51, 4, 77, 2, 33, 15, 141, 10, 5, 341, 180, 515, 3, 217, 202, 9, 365, 317, 64, 700, 102, 11, 165, 197, 22, 753, 7},
{531, 943, 373, 160, 728, 93, 206, 260, 261, 559, 964, 269, 717, 535, 332, 384,
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{1, 4, 13, 2, 15, 0, 23, 515, 77, 3, 341, 33, 5, 700, 115, 51, 202, 753, 141, 180, 11, 10, 102, 217, 6, 901, 40, 7, 197, 318, 317, 365},
{93, 843, 295, 120, 36, 160, 206, 261, 10, 137, 567, 110, 384, 141, 943, 268, 201, 332, 258, 55, 1, 180, 64, 116, 44, 144, 699, 203, 282, 31, 260, 373},
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{39, 166, 9, 30, 0, 101, 274, 404, 252, 333, 190, 100, 158, 438, 310, 88, 68, 265, 656, 21, 1, 530, 329, 344, 49, 539, 625, 254, 13, 131, 48, 419},
{0, 1, 28, 9, 22, 12, 65, 83, 67, 36, 5, 2, 50, 55, 96, 109, 16, 13, 24, 23, 21, 238, 49, 18, 285, 160, 128, 39, 69, 114, 7, 323},
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{5, 61, 45, 2, 80, 29, 311, 209, 6, 17, 58, 1, 151, 106, 454, 667, 243, 70, 52, 496, 287, 592, 255, 738, 64, 74, 483, 14, 27, 32, 112, 19},
{31, 125, 22, 44, 299, 456, 685, 242, 599, 116, 170, 28, 0, 1, 492, 393, 506, 144, 558, 10, 268, 301, 239, 23, 13, 36, 963, 367, 55, 206, 105, 95},
{187, 258, 926, 574, 839, 93, 228, 860, 406, 219, 871, 160, 137, 531, 224, 116, 120, 902, 669, 201, 36, 131, 44, 144, 843, 533, 318, 384, 442, 1, 434, 268},
{7, 107, 75, 16, 87, 9, 64, 177, 24, 18, 291, 77, 349, 141, 60, 232, 23, 0, 51, 269, 132, 14, 5, 21, 70, 32, 678, 112, 126, 121, 71, 947},
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{13, 23, 51, 1, 5, 202, 2, 12, 15, 21, 165, 141, 0, 115, 3, 4, 32, 515, 197, 10, 180, 318, 128, 120, 64, 700, 6, 7, 403, 269, 457, 137},
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{7, 66, 172, 97, 92, 140, 232, 568, 298, 14, 192, 314, 16, 380, 135, 324, 2, 330, 74, 38, 357, 448, 126, 69, 35, 5, 107, 6, 387, 60, 204, 572},
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{5, 1, 2, 0, 14, 36, 21, 281, 12, 48, 50, 67, 22, 28, 54, 83, 24, 218, 38, 10, 181, 9, 32, 18, 65, 58, 45, 114, 430, 17, 99, 37},
{137, 450, 202, 704, 120, 260, 326, 318, 968, 269, 851, 403, 291, 77, 23, 141, 182, 310, 494, 373, 351, 457, 82, 890, 349, 110, 60, 128, 817, 678, 105, 96},
{15, 515, 700, 753, 4, 33, 13, 23, 77, 5, 40, 11, 102, 93, 1, 21, 110, 51, 82, 117, 141, 2, 10, 8, 32, 64, 120, 31, 202, 3, 217, 115},
{15, 13, 1, 23, 515, 0, 51, 2, 700, 5, 753, 21, 180, 141, 165, 3, 12, 115, 197, 4, 7, 6, 457, 9, 352, 202, 33, 8, 719, 120, 77, 341},
{219, 127, 258, 98, 276, 201, 131, 395, 944, 293, 116, 284, 567, 31, 242, 105, 137, 935, 295, 44, 403, 860, 51, 224, 576, 456, 9, 371, 578, 475, 202, 512},
{16, 7, 18, 35, 60, 0, 14, 20, 118, 28, 68, 22, 2, 24, 1, 92, 158, 107, 5, 49, 154, 126, 109, 12, 43, 10, 55, 6, 677, 71, 21, 168},
{93, 728, 531, 160, 559, 373, 574, 120, 295, 860, 533, 269, 717, 260, 926, 902,
258, 318, 36, 201, 261, 434, 851, 137, 617, 141, 187, 352, 843, 384, 332, 251},
{28, 0, 1, 9, 22, 109, 83, 39, 49, 12, 36, 67, 55, 5, 96, 2, 128, 30, 158, 69, 21, 23, 160, 208, 35, 13, 65, 323, 50, 141, 194, 238},
{23, 13, 51, 1, 5, 15, 141, 21, 0, 2, 165, 515, 202, 700, 12, 197, 180, 120, 32, 115, 4, 753, 64, 9, 7, 269, 6, 3, 125, 386, 48, 453},
{5, 21, 13, 49, 14, 20, 7, 23, 43, 32, 1, 0, 652, 48, 713, 22, 38, 2, 16, 132, 955, 107, 12, 279, 24, 888, 197, 640, 70, 303, 18, 638},
{9, 0, 28, 39, 1, 30, 35, 101, 22, 67, 83, 141, 49, 175, 36, 68, 55, 88, 13, 251, 10, 69, 23, 158, 180, 115, 64, 100, 217, 65, 345, 166},
{260, 120, 82, 269, 5, 450, 351, 1, 202, 141, 854, 13, 77, 922, 32, 33, 137, 4, 23, 125, 291, 21, 15, 515, 165, 349, 177, 700, 318, 326, 180, 753},
{121, 16, 18, 35, 363, 101, 60, 20, 107, 14, 68, 259, 621, 55, 604, 43, 7, 252, 9, 364, 126, 0, 167, 191, 5, 407, 132, 28, 199, 419, 146, 10},
{13, 23, 51, 1, 15, 0, 2, 141, 5, 515, 12, 21, 700, 115, 165, 180, 4, 753, 3, 197, 202, 32, 9, 120, 7, 8, 6, 11, 37, 10, 457, 269},
{201, 144, 206, 443, 418, 203, 435, 96, 335, 459, 187, 1, 88, 332, 330, 321, 269, 934, 30, 372, 822, 521, 268, 326, 44, 523, 382, 141, 410, 264, 494, 473},
{31, 44, 276, 201, 116, 131, 284, 662, 567, 144, 9, 489, 98, 295, 268, 434, 0, 30, 137, 39, 93, 1, 187, 22, 219, 918, 110, 299, 141, 36, 224, 384},
{520, 478, 664, 1, 264, 604, 9, 167, 777, 759, 411, 0, 806, 724, 48, 21, 101, 68, 647, 936, 363, 223, 118, 682, 410, 18, 100, 16, 252, 98, 265, 13},
{23, 70, 21, 87, 60, 75, 120, 182, 163, 379, 92, 18, 7, 937, 71, 121, 446, 132, 24, 98, 931, 126, 107, 77, 795, 195, 115, 44, 411, 146, 51, 850},
{39, 9, 0, 737, 127, 31, 846, 98, 1, 827, 105, 310, 371, 30, 254, 100, 44, 18, 395, 242, 272, 101, 385, 916, 836, 16, 265, 131, 938, 93, 166, 557},
{279, 20, 43, 126, 107, 7, 92, 16, 356, 362, 60, 595, 246, 359, 598, 35, 0, 683, 939, 653, 121, 97, 125, 441, 399, 392, 150, 199, 48, 230, 14, 649},
{206, 417, 93, 959, 499, 728, 8, 559, 120, 473, 137, 141, 10, 564, 31, 260, 44, 450, 203, 341, 253, 244, 373, 116, 143, 638, 268, 180, 352, 110, 318, 940},
{259, 465, 147, 132, 590, 687, 534, 199, 581, 146, 941, 427, 107, 640, 279, 178, 121, 5, 195, 150, 522, 955, 198, 35, 786, 929, 798, 142, 1, 21, 325, 626},
{523, 15, 120, 450, 202, 515, 403, 51, 817, 700, 13, 753, 23, 457, 33, 899, 128, 64, 730, 102, 494, 342, 115, 719, 453, 196, 49, 99, 318, 421, 308, 5},
{141, 559, 10, 244, 365, 564, 661, 180, 253, 143, 752, 110, 55, 317, 533, 341, 901, 93, 373, 206, 535, 160, 82, 922, 260, 36, 531, 964, 352, 332, 261, 197},
{219, 258, 98, 127, 276, 964, 943, 137, 843, 535, 201, 935, 131, 860, 261, 295, 284, 567, 206, 44, 116, 31, 253, 492, 203, 332, 160, 615, 36, 93, 55, 692},
{0, 319, 422, 207, 945, 693, 577, 887, 32, 804, 95, 344, 104, 904, 61, 20, 5, 43, 7, 725, 113, 510, 306, 102, 49, 263, 153, 426, 33, 83, 22, 9},
{1, 22, 0, 5, 12, 2, 36, 21, 28, 86, 49, 105, 9, 10, 23, 13, 141, 95, 31, 55, 128, 37, 51, 4, 83, 202, 3, 64, 96, 7, 32, 44},
{15, 515, 13, 700, 1, 0, 753, 2, 23, 3, 4, 5, 51, 10, 115, 197, 6, 33, 12, 9, 165, 7, 8, 77, 11, 961, 180, 269, 141, 22, 120, 457},
{15, 1, 23, 120, 77, 13, 515, 51, 141, 202, 700, 180, 110, 137, 260, 753, 326, 5, 128, 102, 0, 21, 2, 165, 269, 33, 197, 450, 318, 217, 93, 115},
{15, 515, 1, 700, 0, 753, 13, 2, 23, 180, 51, 5, 120, 4, 9, 115, 197, 12, 7, 165, 21, 33, 6, 82, 3, 8, 523, 901, 31, 141, 457, 260},
{16, 18, 24, 7, 92, 35, 60, 75, 9, 13, 71, 14, 0, 108, 50, 21, 126, 121, 1, 140, 23, 5, 132, 146, 2, 12, 128, 10, 64, 141, 70, 87},
{180, 341, 901, 15, 515, 1, 365, 700, 0, 2, 197, 753, 115, 4, 10, 13, 752, 5, 3, 8, 165, 317, 141, 23, 143, 873, 44, 31, 569, 55, 93, 6},
{9, 0, 175, 35, 101, 28, 39, 67, 68, 1, 65, 83, 30, 69, 364, 336, 22, 114, 55, 124, 194, 158, 100, 289, 252, 166, 64, 345, 103, 36, 50, 88},
{64, 165, 180, 197, 115, 247, 217, 237, 21, 13, 32, 316, 22, 141, 352, 72, 288, 304, 95, 225, 76, 391, 386, 16, 468, 90, 49, 35, 365, 640, 372, 23},
{15, 515, 700, 13, 753, 1, 0, 2, 23, 4, 5, 3, 115, 51, 141, 197, 12, 10, 180, 961, 7, 9, 21, 33, 217, 6, 8, 165, 457, 11, 77, 341},
{132, 121, 199, 146, 60, 279, 493, 640, 407, 598, 126, 195, 534, 581, 955, 590, 107, 5, 150, 35, 522, 49, 259, 16, 18, 360, 156, 0, 147, 362, 21, 167},
{0, 1, 28, 9, 22, 5, 36, 12, 65, 24, 67, 96, 2, 83, 18, 50, 114, 55, 21, 16, 7, 10, 23, 14, 13, 160, 137, 51, 48, 218, 103, 69},
{93, 120, 957, 77, 30, 968, 459, 110, 137, 160, 613, 102, 202, 352, 373, 141, 31, 372, 217, 330, 190, 318, 269, 260, 203, 44, 28, 473, 228, 177, 863, 704},
{15, 515, 700, 0, 753, 1, 13, 23, 2, 51, 5, 9, 120, 82, 4, 7, 901, 197, 10, 8, 260, 180, 341, 12, 33, 6, 3, 523, 165, 102, 115, 141},
{206, 417, 8, 141, 499, 44, 244, 93, 31, 10, 137, 253, 559, 116, 728, 144, 120, 564, 269, 638, 203, 352, 143, 260, 341, 752, 268, 717, 951, 180, 160, 110},
{530, 254, 228, 1, 96, 21, 406, 39, 827, 31, 669, 840, 613, 829, 137, 679, 166, 98, 23, 51, 960, 438, 131, 93, 48, 224, 219, 317, 310, 36, 876, 190},
{15, 515, 700, 753, 13, 457, 0, 197, 719, 1, 165, 82, 23, 8, 120, 730, 2, 10, 12, 180, 134, 5, 9, 141, 260, 4, 351, 51, 115, 3, 341, 899},
{0, 16, 68, 9, 24, 28, 18, 35, 252, 109, 39, 419, 124, 158, 154, 55, 101, 71, 22, 118, 60, 7, 49, 65, 333, 14, 1, 10, 329, 364, 677, 346},
{1, 15, 13, 23, 515, 51, 120, 0, 700, 180, 2, 165, 5, 753, 141, 197, 21, 33, 202, 102, 260, 4, 9, 12, 7, 326, 137, 450, 115, 6, 82, 110},
{535, 253, 352, 564, 110, 365, 82, 180, 341, 10, 854, 533, 55, 898, 244, 901,
873, 141, 752, 143, 642, 559, 498, 317, 36, 951, 115, 964, 638, 282, 661, 197},
{31, 44, 125, 338, 116, 64, 242, 36, 1, 10, 55, 22, 456, 237, 180, 13, 299, 164, 506, 86, 23, 165, 558, 143, 0, 762, 492, 479, 844, 546, 93, 8},
{13, 23, 4, 1, 202, 2, 0, 51, 115, 77, 141, 180, 5, 15, 217, 3, 33, 11, 515, 317, 9, 10, 102, 21, 700, 341, 365, 318, 269, 64, 32, 128},
{9, 39, 0, 166, 68, 101, 28, 364, 30, 158, 562, 35, 175, 65, 333, 154, 49, 404, 706, 124, 21, 252, 274, 168, 190, 289, 100, 570, 16, 1, 310, 346},
{15, 515, 700, 753, 341, 13, 0, 23, 1, 33, 141, 4, 260, 82, 77, 51, 351, 180, 9, 5, 115, 137, 10, 217, 11, 120, 102, 40, 349, 269, 202, 854}
#else
#include "Table4.h"
#endif
}};
// endregion
template class OrderTable<3>;
template class OrderTable<4>;

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// rgbcx.h v1.12
// High-performance scalar BC1-5 encoders. Public Domain or MIT license (you choose - see below), written by Richard Geldreich 2020 <richgel99@gmail.com>.
#pragma once
#include <cstdint>
#include <array>
// This table is: 9 * (w * w), 9 * ((1.0f - w) * w), 9 * ((1.0f - w) * (1.0f - w))
// where w is [0,1/3,2/3,1]. 9 is the perfect multiplier.
static constexpr std::array<uint32_t, 4> g_weight_vals4 = {0x000009, 0x010204, 0x040201, 0x090000};
// multiplier is 4 for 3-color
static constexpr std::array<uint32_t, 3> g_weight_vals3 = {0x000004, 0x040000, 0x010101};
const uint32_t MIN_TOTAL_ORDERINGS = 1;
const uint32_t MAX_TOTAL_ORDERINGS3 = 32;
#if RGBCX_USE_SMALLER_TABLES
const uint32_t MAX_TOTAL_ORDERINGS4 = 32;
#else
const uint32_t MAX_TOTAL_ORDERINGS4 = 128;
#endif
extern const float g_midpoint5[32];
extern const float g_midpoint6[64];
const uint32_t NUM_UNIQUE_TOTAL_ORDERINGS4 = 969;
extern const uint8_t g_unique_total_orders4[NUM_UNIQUE_TOTAL_ORDERINGS4][4];
const uint32_t NUM_UNIQUE_TOTAL_ORDERINGS3 = 153;
extern const uint8_t g_unique_total_orders3[NUM_UNIQUE_TOTAL_ORDERINGS3][3];
extern const uint16_t g_best_total_orderings4[NUM_UNIQUE_TOTAL_ORDERINGS4][MAX_TOTAL_ORDERINGS4];
extern const uint8_t g_best_total_orderings3[NUM_UNIQUE_TOTAL_ORDERINGS3][32];
/*
------------------------------------------------------------------------------
This software is available under 2 licenses -- choose whichever you prefer.
------------------------------------------------------------------------------
ALTERNATIVE A - MIT License
Copyright(c) 2020 Richard Geldreich, Jr.
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files(the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and / or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions :
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
------------------------------------------------------------------------------
ALTERNATIVE B - Public Domain(www.unlicense.org)
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
software, either in source code form or as a compiled binary, for any purpose,
commercial or non - commercial, and by any means.
In jurisdictions that recognize copyright laws, the author or authors of this
software dedicate any and all copyright interest in the software to the public
domain.We make this dedication for the benefit of the public at large and to
the detriment of our heirs and successors.We intend this dedication to be an
overt act of relinquishment in perpetuity of all present and future rights to
this software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
------------------------------------------------------------------------------
*/

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// rgbcx.h v1.12
// High-performance scalar BC1-5 encoders. Public Domain or MIT license (you choose - see below), written by Richard Geldreich 2020 <richgel99@gmail.com>.
//
// Influential references:
// http://sjbrown.co.uk/2006/01/19/dxt-compression-techniques/
// https://github.com/nothings/stb/blob/master/stb_dxt.h
// https://gist.github.com/castano/c92c7626f288f9e99e158520b14a61cf
// https://github.com/castano/icbc/blob/master/icbc.h
// http://www.humus.name/index.php?page=3D&ID=79
//
// Instructions:
//
// The library MUST be initialized by calling this function at least once before using any encoder or decoder functions:
//
// void rgbcx::init(bc1_approx_mode mode = cBC1Ideal);
//
// This function manipulates global state, so it is not thread safe.
// You can call it multiple times to change the global BC1 approximation mode.
// Important: BC1/3 textures encoded using non-ideal BC1 approximation modes should only be sampled on parts from that vendor.
// If you encode for AMD, average error on AMD parts will go down, but average error on NVidia parts will go up and vice versa.
// If in doubt, encode in ideal BC1 mode.
//
// Call these functions to encode BC1-5:
// void rgbcx::encode_bc1(uint32_t level, void* pDst, const uint8_t* pPixels, bool allow_3color, bool use_transparent_texels_for_black);
// void rgbcx::encode_bc3(uint32_t level, void* pDst, const uint8_t* pPixels);
// void rgbcx::encode_bc4(void* pDst, const uint8_t* pPixels, uint32_t stride = 4);
// void rgbcx::encode_bc5(void* pDst, const uint8_t* pPixels, uint32_t chan0 = 0, uint32_t chan1 = 1, uint32_t stride = 4);
//
// - level ranges from MIN_LEVEL to MAX_LEVEL. The higher the level, the slower the encoder goes, but the higher the average quality.
// levels [0,4] are fast and compete against stb_dxt (default and HIGHQUAL). The remaining levels compete against squish/NVTT/icbc and icbc HQ.
// If in doubt just use level 10, set allow_3color to true and use_transparent_texels_for_black to false, and adjust as needed.
//
// - pDst is a pointer to the 8-byte (BC1/4) or 16-byte (BC3/5) destination block.
//
// - pPixels is a pointer to the 32-bpp pixels, in either RGBX or RGBA format (R is first in memory).
// Alpha is always ignored by encode_bc1().
//
// - allow_3color: If true the encoder will use 3-color blocks. This flag is ignored unless level is >= 5 (because lower levels compete against stb_dxt and it
// doesn't support 3-color blocks). Do not enable on BC3-5 textures. 3-color block usage slows down encoding.
//
// - use_transparent_texels_for_black: If true the encoder will use 3-color block transparent black pixels to code very dark or black texels. Your engine/shader
// MUST ignore the sampled alpha value for textures encoded in this mode. This is how NVidia's classic "nvdxt" encoder (used by many original Xbox titles) used
// to work by default on DXT1C textures. It increases average quality substantially (because dark texels/black are very common) and is highly recommended. Do
// not enable on BC3-5 textures.
//
// - stride is the source pixel stride, in bytes. It's typically 4.
//
// - chan0 and chan1 are the source channels. Typically they will be 0 and 1.
//
// All encoding and decoding functions are thread-safe.
//
// To reduce the compiled size of the encoder, set #define RGBCX_USE_SMALLER_TABLES to 1 before including this header.
//
#pragma once
#include <cstdint>
#include "BC1/BC1Block.h"
#include "BC3/BC3Block.h"
#include "BC4/BC4Block.h"
#include "BC5/BC5Block.h"
#include "Interpolator.h"
// By default, the table used to accelerate cluster fit on 4 color blocks uses a 969x128 entry table.
// To reduce the executable size, set RGBCX_USE_SMALLER_TABLES to 1, which selects the smaller 969x32 entry table.
#ifndef RGBCX_USE_SMALLER_TABLES
#define RGBCX_USE_SMALLER_TABLES 0
#endif
namespace rgbcx {
enum class bc1_approx_mode {
// The default mode. No rounding for 4-color colors 2,3. My older tools/compressors use this mode.
// This matches the D3D10 docs on BC1.
cBC1Ideal = 0,
// NVidia GPU mode.
cBC1NVidia = 1,
// AMD GPU mode.
cBC1AMD = 2,
// This mode matches AMD Compressonator's output. It rounds 4-color colors 2,3 (not 3-color color 2).
// This matches the D3D9 docs on DXT1.
cBC1IdealRound4 = 3
};
// init() MUST be called once before using the BC1 encoder.
// This function may be called multiple times to change the BC1 approximation mode.
// This function initializes global state, so don't call it while other threads inside the encoder.
// Important: If you encode textures for a specific vendor's GPU's, beware that using that texture data on other GPU's may result in ugly artifacts.
// Encode to cBC1Ideal unless you know the texture data will only be deployed or used on a specific vendor's GPU.
void init(bc1_approx_mode mode = bc1_approx_mode::cBC1Ideal);
// Optimally encodes a solid color block to BC1 format.
void encode_bc1_solid_block(void *pDst, uint32_t fr, uint32_t fg, uint32_t fb, bool allow_3color);
// BC1 low-level API encoder flags. You can ignore this if you use the simple level API.
enum {
// Try to improve quality using the most likely total orderings.
// The total_orderings_to_try parameter will then control the number of total orderings to try for 4 color blocks, and the
// total_orderings_to_try3 parameter will control the number of total orderings to try for 3 color blocks (if they are enabled).
cEncodeBC1UseLikelyTotalOrderings = 2,
// Use 2 least squares pass, instead of one (same as stb_dxt's HIGHQUAL option).
// Recommended if you're enabling cEncodeBC1UseLikelyTotalOrderings.
cEncodeBC1TwoLeastSquaresPasses = 4,
// cEncodeBC1Use3ColorBlocksForBlackPixels allows the BC1 encoder to use 3-color blocks for blocks containing black or very dark pixels.
// You shader/engine MUST ignore the alpha channel on textures encoded with this flag.
// Average quality goes up substantially for my 100 texture corpus (~.5 dB), so it's worth using if you can.
// Note the BC1 encoder does not actually support transparency in 3-color mode.
// Don't set when encoding to BC3.
cEncodeBC1Use3ColorBlocksForBlackPixels = 8,
// If cEncodeBC1Use3ColorBlocks is set, the encoder can use 3-color mode for a small but noticeable gain in average quality, but lower perf.
// If you also specify the cEncodeBC1UseLikelyTotalOrderings flag, set the total_orderings_to_try3 paramter to the number of total orderings to try.
// Don't set when encoding to BC3.
cEncodeBC1Use3ColorBlocks = 16,
// cEncodeBC1Iterative will greatly increase encode time, but is very slightly higher quality.
// Same as squish's iterative cluster fit option. Not really worth the tiny boost in quality, unless you just don't care about perf. at all.
cEncodeBC1Iterative = 32,
// cEncodeBC1BoundingBox enables a fast all-integer PCA approximation on 4-color blocks.
// At level 0 options (no other flags), this is ~15% faster, and higher *average* quality.
cEncodeBC1BoundingBox = 64,
// Use a slightly lower quality, but ~30% faster MSE evaluation function for 4-color blocks.
cEncodeBC1UseFasterMSEEval = 128,
// Examine all colors to compute selectors/MSE (slower than default)
cEncodeBC1UseFullMSEEval = 256,
// Use 2D least squares+inset+optimal rounding (the method used in Humus's GPU texture encoding demo), instead of PCA.
// Around 18% faster, very slightly lower average quality to better (depends on the content).
cEncodeBC1Use2DLS = 512,
// Use 6 power iterations vs. 4 for PCA.
cEncodeBC1Use6PowerIters = 2048,
// Check all total orderings - *very* slow. The encoder is not designed to be used in this way.
cEncodeBC1Exhaustive = 8192,
// Try 2 different ways of choosing the initial endpoints.
cEncodeBC1TryAllInitialEndponts = 16384,
// Same as cEncodeBC1BoundingBox, but implemented using integer math (faster, slightly less quality)
cEncodeBC1BoundingBoxInt = 32768,
// Try refining the final endpoints by examining nearby colors.
cEncodeBC1EndpointSearchRoundsShift = 22,
cEncodeBC1EndpointSearchRoundsMask = 1023U << cEncodeBC1EndpointSearchRoundsShift,
};
// DEFAULT_TOTAL_ORDERINGS_TO_TRY is around 3x faster than libsquish at slightly higher average quality. 10-16 is a good range to start to compete against
// libsquish.
const uint32_t DEFAULT_TOTAL_ORDERINGS_TO_TRY = 10;
const uint32_t DEFAULT_TOTAL_ORDERINGS_TO_TRY3 = 1;
// Encodes a 4x4 block of RGBX (X=ignored) pixels to BC1 format.
// This is the simplified interface for BC1 encoding, which accepts a level parameter and converts that to the best overall flags.
// The pixels are in RGBA format, where R is first in memory. The BC1 encoder completely ignores the alpha channel (i.e. there is no punchthrough alpha
// support). This is the recommended function to use for BC1 encoding, becuase it configures the encoder for you in the best possible way (on average). Note
// that the 3 color modes won't be used at all until level 5 or higher. No transparency supported, however if you set use_transparent_texels_for_black to true
// the encoder will use transparent selectors on very dark/black texels to reduce MSE.
const uint32_t MIN_LEVEL = 0, MAX_LEVEL = 18;
void encode_bc1(uint32_t level, void *pDst, const uint8_t *pPixels, bool allow_3color, bool use_transparent_texels_for_black);
// Low-level interface for BC1 encoding.
// Always returns a 4 color block, unless cEncodeBC1Use3ColorBlocksForBlackPixels or cEncodeBC1Use3ColorBlock flags are specified.
// total_orderings_to_try controls the perf. vs. quality tradeoff on 4-color blocks when the cEncodeBC1UseLikelyTotalOrderings flag is used. It must range
// between [MIN_TOTAL_ORDERINGS, MAX_TOTAL_ORDERINGS4]. total_orderings_to_try3 controls the perf. vs. quality tradeoff on 3-color bocks when the
// cEncodeBC1UseLikelyTotalOrderings and the cEncodeBC1Use3ColorBlocks flags are used. Valid range is [0,MAX_TOTAL_ORDERINGS3] (0=disabled).
void encode_bc1(void *pDst, const uint8_t *pPixels, uint32_t flags = 0, uint32_t total_orderings_to_try = DEFAULT_TOTAL_ORDERINGS_TO_TRY,
uint32_t total_orderings_to_try3 = DEFAULT_TOTAL_ORDERINGS_TO_TRY3);
// Encodes a 4x4 block of RGBA pixels to BC3 format.
// There are two encode_bc3() functions.
// The first is the recommended function, which accepts a level parameter.
// The second is a low-level version that allows fine control over BC1 encoding.
void encode_bc3(uint32_t level, BC3Block *pDst, const uint8_t *pPixels);
void encode_bc3(BC3Block *pDst, const uint8_t *pPixels, uint32_t flags = 0, uint32_t total_orderings_to_try = DEFAULT_TOTAL_ORDERINGS_TO_TRY);
// Encodes a single channel to BC4.
// stride is the source pixel stride in bytes.
void encode_bc4(void *pDst, const uint8_t *pPixels, uint32_t stride = 4);
// Encodes two channels to BC5.
// chan0/chan1 control which channels, stride is the source pixel stride in bytes.
void encode_bc5(BC5Block *pDst, const uint8_t *pPixels, uint32_t chan0 = 0, uint32_t chan1 = 1, uint32_t stride = 4);
// Decompression functions.
// Returns true if the block uses 3 color punchthrough alpha mode.
bool unpack_bc1(const void *pBlock_bits, void *pPixels, bool set_alpha = true, bc1_approx_mode mode = bc1_approx_mode::cBC1Ideal);
void unpack_bc4(const void *pBlock_bits, uint8_t *pPixels, uint32_t stride = 4);
// Returns true if the block uses 3 color punchthrough alpha mode.
bool unpack_bc3(const void *pBlock_bits, void *pPixels, bc1_approx_mode mode = bc1_approx_mode::cBC1Ideal);
void unpack_bc5(const void *pBlock_bits, void *pPixels, uint32_t chan0 = 0, uint32_t chan1 = 1, uint32_t stride = 4);
} // namespace rgbcx
/*
------------------------------------------------------------------------------
This software is available under 2 licenses -- choose whichever you prefer.
------------------------------------------------------------------------------
ALTERNATIVE A - MIT License
Copyright(c) 2020 Richard Geldreich, Jr.
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files(the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and / or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions :
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
------------------------------------------------------------------------------
ALTERNATIVE B - Public Domain(www.unlicense.org)
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
software, either in source code form or as a compiled binary, for any purpose,
commercial or non - commercial, and by any means.
In jurisdictions that recognize copyright laws, the author or authors of this
software dedicate any and all copyright interest in the software to the public
domain.We make this dedication for the benefit of the public at large and to
the detriment of our heirs and successors.We intend this dedication to be an
overt act of relinquishment in perpetuity of all present and future rights to
this software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
------------------------------------------------------------------------------
*/

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// File: bc7decomp.c - Richard Geldreich, Jr. 3/31/2020 - MIT license or public domain (see end of file)
#pragma GCC diagnostic ignored "-Weverything"
#include "bc7decomp.h"
namespace bc7decomp
{
const uint32_t g_bc7_weights2[4] = { 0, 21, 43, 64 };
const uint32_t g_bc7_weights3[8] = { 0, 9, 18, 27, 37, 46, 55, 64 };
const uint32_t g_bc7_weights4[16] = { 0, 4, 9, 13, 17, 21, 26, 30, 34, 38, 43, 47, 51, 55, 60, 64 };
const uint8_t g_bc7_partition2[64 * 16] =
{
0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1, 0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,1, 0,1,1,1,0,1,1,1,0,1,1,1,0,1,1,1, 0,0,0,1,0,0,1,1,0,0,1,1,0,1,1,1, 0,0,0,0,0,0,0,1,0,0,0,1,0,0,1,1, 0,0,1,1,0,1,1,1,0,1,1,1,1,1,1,1, 0,0,0,1,0,0,1,1,0,1,1,1,1,1,1,1, 0,0,0,0,0,0,0,1,0,0,1,1,0,1,1,1,
0,0,0,0,0,0,0,0,0,0,0,1,0,0,1,1, 0,0,1,1,0,1,1,1,1,1,1,1,1,1,1,1, 0,0,0,0,0,0,0,1,0,1,1,1,1,1,1,1, 0,0,0,0,0,0,0,0,0,0,0,1,0,1,1,1, 0,0,0,1,0,1,1,1,1,1,1,1,1,1,1,1, 0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1, 0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1, 0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,
0,0,0,0,1,0,0,0,1,1,1,0,1,1,1,1, 0,1,1,1,0,0,0,1,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,1,0,0,0,1,1,1,0, 0,1,1,1,0,0,1,1,0,0,0,1,0,0,0,0, 0,0,1,1,0,0,0,1,0,0,0,0,0,0,0,0, 0,0,0,0,1,0,0,0,1,1,0,0,1,1,1,0, 0,0,0,0,0,0,0,0,1,0,0,0,1,1,0,0, 0,1,1,1,0,0,1,1,0,0,1,1,0,0,0,1,
0,0,1,1,0,0,0,1,0,0,0,1,0,0,0,0, 0,0,0,0,1,0,0,0,1,0,0,0,1,1,0,0, 0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0, 0,0,1,1,0,1,1,0,0,1,1,0,1,1,0,0, 0,0,0,1,0,1,1,1,1,1,1,0,1,0,0,0, 0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0, 0,1,1,1,0,0,0,1,1,0,0,0,1,1,1,0, 0,0,1,1,1,0,0,1,1,0,0,1,1,1,0,0,
0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1, 0,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1, 0,1,0,1,1,0,1,0,0,1,0,1,1,0,1,0, 0,0,1,1,0,0,1,1,1,1,0,0,1,1,0,0, 0,0,1,1,1,1,0,0,0,0,1,1,1,1,0,0, 0,1,0,1,0,1,0,1,1,0,1,0,1,0,1,0, 0,1,1,0,1,0,0,1,0,1,1,0,1,0,0,1, 0,1,0,1,1,0,1,0,1,0,1,0,0,1,0,1,
0,1,1,1,0,0,1,1,1,1,0,0,1,1,1,0, 0,0,0,1,0,0,1,1,1,1,0,0,1,0,0,0, 0,0,1,1,0,0,1,0,0,1,0,0,1,1,0,0, 0,0,1,1,1,0,1,1,1,1,0,1,1,1,0,0, 0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0, 0,0,1,1,1,1,0,0,1,1,0,0,0,0,1,1, 0,1,1,0,0,1,1,0,1,0,0,1,1,0,0,1, 0,0,0,0,0,1,1,0,0,1,1,0,0,0,0,0,
0,1,0,0,1,1,1,0,0,1,0,0,0,0,0,0, 0,0,1,0,0,1,1,1,0,0,1,0,0,0,0,0, 0,0,0,0,0,0,1,0,0,1,1,1,0,0,1,0, 0,0,0,0,0,1,0,0,1,1,1,0,0,1,0,0, 0,1,1,0,1,1,0,0,1,0,0,1,0,0,1,1, 0,0,1,1,0,1,1,0,1,1,0,0,1,0,0,1, 0,1,1,0,0,0,1,1,1,0,0,1,1,1,0,0, 0,0,1,1,1,0,0,1,1,1,0,0,0,1,1,0,
0,1,1,0,1,1,0,0,1,1,0,0,1,0,0,1, 0,1,1,0,0,0,1,1,0,0,1,1,1,0,0,1, 0,1,1,1,1,1,1,0,1,0,0,0,0,0,0,1, 0,0,0,1,1,0,0,0,1,1,1,0,0,1,1,1, 0,0,0,0,1,1,1,1,0,0,1,1,0,0,1,1, 0,0,1,1,0,0,1,1,1,1,1,1,0,0,0,0, 0,0,1,0,0,0,1,0,1,1,1,0,1,1,1,0, 0,1,0,0,0,1,0,0,0,1,1,1,0,1,1,1
};
const uint8_t g_bc7_partition3[64 * 16] =
{
0,0,1,1,0,0,1,1,0,2,2,1,2,2,2,2, 0,0,0,1,0,0,1,1,2,2,1,1,2,2,2,1, 0,0,0,0,2,0,0,1,2,2,1,1,2,2,1,1, 0,2,2,2,0,0,2,2,0,0,1,1,0,1,1,1, 0,0,0,0,0,0,0,0,1,1,2,2,1,1,2,2, 0,0,1,1,0,0,1,1,0,0,2,2,0,0,2,2, 0,0,2,2,0,0,2,2,1,1,1,1,1,1,1,1, 0,0,1,1,0,0,1,1,2,2,1,1,2,2,1,1,
0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2, 0,0,0,0,1,1,1,1,1,1,1,1,2,2,2,2, 0,0,0,0,1,1,1,1,2,2,2,2,2,2,2,2, 0,0,1,2,0,0,1,2,0,0,1,2,0,0,1,2, 0,1,1,2,0,1,1,2,0,1,1,2,0,1,1,2, 0,1,2,2,0,1,2,2,0,1,2,2,0,1,2,2, 0,0,1,1,0,1,1,2,1,1,2,2,1,2,2,2, 0,0,1,1,2,0,0,1,2,2,0,0,2,2,2,0,
0,0,0,1,0,0,1,1,0,1,1,2,1,1,2,2, 0,1,1,1,0,0,1,1,2,0,0,1,2,2,0,0, 0,0,0,0,1,1,2,2,1,1,2,2,1,1,2,2, 0,0,2,2,0,0,2,2,0,0,2,2,1,1,1,1, 0,1,1,1,0,1,1,1,0,2,2,2,0,2,2,2, 0,0,0,1,0,0,0,1,2,2,2,1,2,2,2,1, 0,0,0,0,0,0,1,1,0,1,2,2,0,1,2,2, 0,0,0,0,1,1,0,0,2,2,1,0,2,2,1,0,
0,1,2,2,0,1,2,2,0,0,1,1,0,0,0,0, 0,0,1,2,0,0,1,2,1,1,2,2,2,2,2,2, 0,1,1,0,1,2,2,1,1,2,2,1,0,1,1,0, 0,0,0,0,0,1,1,0,1,2,2,1,1,2,2,1, 0,0,2,2,1,1,0,2,1,1,0,2,0,0,2,2, 0,1,1,0,0,1,1,0,2,0,0,2,2,2,2,2, 0,0,1,1,0,1,2,2,0,1,2,2,0,0,1,1, 0,0,0,0,2,0,0,0,2,2,1,1,2,2,2,1,
0,0,0,0,0,0,0,2,1,1,2,2,1,2,2,2, 0,2,2,2,0,0,2,2,0,0,1,2,0,0,1,1, 0,0,1,1,0,0,1,2,0,0,2,2,0,2,2,2, 0,1,2,0,0,1,2,0,0,1,2,0,0,1,2,0, 0,0,0,0,1,1,1,1,2,2,2,2,0,0,0,0, 0,1,2,0,1,2,0,1,2,0,1,2,0,1,2,0, 0,1,2,0,2,0,1,2,1,2,0,1,0,1,2,0, 0,0,1,1,2,2,0,0,1,1,2,2,0,0,1,1,
0,0,1,1,1,1,2,2,2,2,0,0,0,0,1,1, 0,1,0,1,0,1,0,1,2,2,2,2,2,2,2,2, 0,0,0,0,0,0,0,0,2,1,2,1,2,1,2,1, 0,0,2,2,1,1,2,2,0,0,2,2,1,1,2,2, 0,0,2,2,0,0,1,1,0,0,2,2,0,0,1,1, 0,2,2,0,1,2,2,1,0,2,2,0,1,2,2,1, 0,1,0,1,2,2,2,2,2,2,2,2,0,1,0,1, 0,0,0,0,2,1,2,1,2,1,2,1,2,1,2,1,
0,1,0,1,0,1,0,1,0,1,0,1,2,2,2,2, 0,2,2,2,0,1,1,1,0,2,2,2,0,1,1,1, 0,0,0,2,1,1,1,2,0,0,0,2,1,1,1,2, 0,0,0,0,2,1,1,2,2,1,1,2,2,1,1,2, 0,2,2,2,0,1,1,1,0,1,1,1,0,2,2,2, 0,0,0,2,1,1,1,2,1,1,1,2,0,0,0,2, 0,1,1,0,0,1,1,0,0,1,1,0,2,2,2,2, 0,0,0,0,0,0,0,0,2,1,1,2,2,1,1,2,
0,1,1,0,0,1,1,0,2,2,2,2,2,2,2,2, 0,0,2,2,0,0,1,1,0,0,1,1,0,0,2,2, 0,0,2,2,1,1,2,2,1,1,2,2,0,0,2,2, 0,0,0,0,0,0,0,0,0,0,0,0,2,1,1,2, 0,0,0,2,0,0,0,1,0,0,0,2,0,0,0,1, 0,2,2,2,1,2,2,2,0,2,2,2,1,2,2,2, 0,1,0,1,2,2,2,2,2,2,2,2,2,2,2,2, 0,1,1,1,2,0,1,1,2,2,0,1,2,2,2,0,
};
const uint8_t g_bc7_table_anchor_index_second_subset[64] = { 15,15,15,15,15,15,15,15, 15,15,15,15,15,15,15,15, 15, 2, 8, 2, 2, 8, 8,15, 2, 8, 2, 2, 8, 8, 2, 2, 15,15, 6, 8, 2, 8,15,15, 2, 8, 2, 2, 2,15,15, 6, 6, 2, 6, 8,15,15, 2, 2, 15,15,15,15,15, 2, 2,15 };
const uint8_t g_bc7_table_anchor_index_third_subset_1[64] =
{
3, 3,15,15, 8, 3,15,15, 8, 8, 6, 6, 6, 5, 3, 3, 3, 3, 8,15, 3, 3, 6,10, 5, 8, 8, 6, 8, 5,15,15, 8,15, 3, 5, 6,10, 8,15, 15, 3,15, 5,15,15,15,15, 3,15, 5, 5, 5, 8, 5,10, 5,10, 8,13,15,12, 3, 3
};
const uint8_t g_bc7_table_anchor_index_third_subset_2[64] =
{
15, 8, 8, 3,15,15, 3, 8, 15,15,15,15,15,15,15, 8, 15, 8,15, 3,15, 8,15, 8, 3,15, 6,10,15,15,10, 8, 15, 3,15,10,10, 8, 9,10, 6,15, 8,15, 3, 6, 6, 8, 15, 3,15,15,15,15,15,15, 15,15,15,15, 3,15,15, 8
};
inline uint32_t read_bits32(const uint8_t* pBuf, uint32_t& bit_offset, uint32_t codesize)
{
assert(codesize <= 32);
uint32_t bits = 0;
uint32_t total_bits = 0;
while (total_bits < codesize)
{
uint32_t byte_bit_offset = bit_offset & 7;
uint32_t bits_to_read = std::min<int>(codesize - total_bits, 8 - byte_bit_offset);
uint32_t byte_bits = pBuf[bit_offset >> 3] >> byte_bit_offset;
byte_bits &= ((1 << bits_to_read) - 1);
bits |= (byte_bits << total_bits);
total_bits += bits_to_read;
bit_offset += bits_to_read;
}
return bits;
}
// BC7 mode 0-7 decompression.
// Instead of one monster routine to unpack all the BC7 modes, we're lumping the 3 subset, 2 subset, 1 subset, and dual plane modes together into simple shared routines.
static inline uint32_t bc7_dequant(uint32_t val, uint32_t pbit, uint32_t val_bits) { assert(val < (1U << val_bits)); assert(pbit < 2); assert(val_bits >= 4 && val_bits <= 8); const uint32_t total_bits = val_bits + 1; val = (val << 1) | pbit; val <<= (8 - total_bits); val |= (val >> total_bits); assert(val <= 255); return val; }
static inline uint32_t bc7_dequant(uint32_t val, uint32_t val_bits) { assert(val < (1U << val_bits)); assert(val_bits >= 4 && val_bits <= 8); val <<= (8 - val_bits); val |= (val >> val_bits); assert(val <= 255); return val; }
static inline uint32_t bc7_interp2(uint32_t l, uint32_t h, uint32_t w) { assert(w < 4); return (l * (64 - g_bc7_weights2[w]) + h * g_bc7_weights2[w] + 32) >> 6; }
static inline uint32_t bc7_interp3(uint32_t l, uint32_t h, uint32_t w) { assert(w < 8); return (l * (64 - g_bc7_weights3[w]) + h * g_bc7_weights3[w] + 32) >> 6; }
static inline uint32_t bc7_interp4(uint32_t l, uint32_t h, uint32_t w) { assert(w < 16); return (l * (64 - g_bc7_weights4[w]) + h * g_bc7_weights4[w] + 32) >> 6; }
static inline uint32_t bc7_interp(uint32_t l, uint32_t h, uint32_t w, uint32_t bits)
{
assert(l <= 255 && h <= 255);
switch (bits)
{
case 2: return bc7_interp2(l, h, w);
case 3: return bc7_interp3(l, h, w);
case 4: return bc7_interp4(l, h, w);
default:
break;
}
return 0;
}
bool unpack_bc7_mode0_2(uint32_t mode, const void* pBlock_bits, color_rgba* pPixels)
{
//const uint32_t SUBSETS = 3;
const uint32_t ENDPOINTS = 6;
const uint32_t COMPS = 3;
const uint32_t WEIGHT_BITS = (mode == 0) ? 3 : 2;
const uint32_t ENDPOINT_BITS = (mode == 0) ? 4 : 5;
const uint32_t PBITS = (mode == 0) ? 6 : 0;
const uint32_t WEIGHT_VALS = 1 << WEIGHT_BITS;
uint32_t bit_offset = 0;
const uint8_t* pBuf = static_cast<const uint8_t*>(pBlock_bits);
if (read_bits32(pBuf, bit_offset, mode + 1) != (1U << mode)) return false;
const uint32_t part = read_bits32(pBuf, bit_offset, (mode == 0) ? 4 : 6);
color_rgba endpoints[ENDPOINTS];
for (uint32_t c = 0; c < COMPS; c++)
for (uint32_t e = 0; e < ENDPOINTS; e++)
endpoints[e][c] = (uint8_t)read_bits32(pBuf, bit_offset, ENDPOINT_BITS);
uint32_t pbits[6];
for (uint32_t p = 0; p < PBITS; p++)
pbits[p] = read_bits32(pBuf, bit_offset, 1);
uint32_t weights[16];
for (uint32_t i = 0; i < 16; i++)
weights[i] = read_bits32(pBuf, bit_offset, ((!i) || (i == g_bc7_table_anchor_index_third_subset_1[part]) || (i == g_bc7_table_anchor_index_third_subset_2[part])) ? (WEIGHT_BITS - 1) : WEIGHT_BITS);
assert(bit_offset == 128);
for (uint32_t e = 0; e < ENDPOINTS; e++)
for (uint32_t c = 0; c < 4; c++)
endpoints[e][c] = (uint8_t)((c == 3) ? 255 : (PBITS ? bc7_dequant(endpoints[e][c], pbits[e], ENDPOINT_BITS) : bc7_dequant(endpoints[e][c], ENDPOINT_BITS)));
color_rgba block_colors[3][8];
for (uint32_t s = 0; s < 3; s++)
for (uint32_t i = 0; i < WEIGHT_VALS; i++)
{
for (uint32_t c = 0; c < 3; c++)
block_colors[s][i][c] = (uint8_t)bc7_interp(endpoints[s * 2 + 0][c], endpoints[s * 2 + 1][c], i, WEIGHT_BITS);
block_colors[s][i][3] = 255;
}
for (uint32_t i = 0; i < 16; i++)
pPixels[i] = block_colors[g_bc7_partition3[part * 16 + i]][weights[i]];
return true;
}
bool unpack_bc7_mode1_3_7(uint32_t mode, const void* pBlock_bits, color_rgba* pPixels)
{
//const uint32_t SUBSETS = 2;
const uint32_t ENDPOINTS = 4;
const uint32_t COMPS = (mode == 7) ? 4 : 3;
const uint32_t WEIGHT_BITS = (mode == 1) ? 3 : 2;
const uint32_t ENDPOINT_BITS = (mode == 7) ? 5 : ((mode == 1) ? 6 : 7);
const uint32_t PBITS = (mode == 1) ? 2 : 4;
const uint32_t SHARED_PBITS = (mode == 1) ? true : false;
const uint32_t WEIGHT_VALS = 1 << WEIGHT_BITS;
uint32_t bit_offset = 0;
const uint8_t* pBuf = static_cast<const uint8_t*>(pBlock_bits);
if (read_bits32(pBuf, bit_offset, mode + 1) != (1U << mode)) return false;
const uint32_t part = read_bits32(pBuf, bit_offset, 6);
color_rgba endpoints[ENDPOINTS];
for (uint32_t c = 0; c < COMPS; c++)
for (uint32_t e = 0; e < ENDPOINTS; e++)
endpoints[e][c] = (uint8_t)read_bits32(pBuf, bit_offset, ENDPOINT_BITS);
uint32_t pbits[4];
for (uint32_t p = 0; p < PBITS; p++)
pbits[p] = read_bits32(pBuf, bit_offset, 1);
uint32_t weights[16];
for (uint32_t i = 0; i < 16; i++)
weights[i] = read_bits32(pBuf, bit_offset, ((!i) || (i == g_bc7_table_anchor_index_second_subset[part])) ? (WEIGHT_BITS - 1) : WEIGHT_BITS);
assert(bit_offset == 128);
for (uint32_t e = 0; e < ENDPOINTS; e++)
for (uint32_t c = 0; c < 4; c++)
endpoints[e][c] = (uint8_t)((c == ((mode == 7U) ? 4U : 3U)) ? 255 : bc7_dequant(endpoints[e][c], pbits[SHARED_PBITS ? (e >> 1) : e], ENDPOINT_BITS));
color_rgba block_colors[2][8];
for (uint32_t s = 0; s < 2; s++)
for (uint32_t i = 0; i < WEIGHT_VALS; i++)
{
for (uint32_t c = 0; c < COMPS; c++)
block_colors[s][i][c] = (uint8_t)bc7_interp(endpoints[s * 2 + 0][c], endpoints[s * 2 + 1][c], i, WEIGHT_BITS);
block_colors[s][i][3] = (COMPS == 3) ? 255 : block_colors[s][i][3];
}
for (uint32_t i = 0; i < 16; i++)
pPixels[i] = block_colors[g_bc7_partition2[part * 16 + i]][weights[i]];
return true;
}
bool unpack_bc7_mode4_5(uint32_t mode, const void* pBlock_bits, color_rgba* pPixels)
{
const uint32_t ENDPOINTS = 2;
const uint32_t COMPS = 4;
const uint32_t WEIGHT_BITS = 2;
const uint32_t A_WEIGHT_BITS = (mode == 4) ? 3 : 2;
const uint32_t ENDPOINT_BITS = (mode == 4) ? 5 : 7;
const uint32_t A_ENDPOINT_BITS = (mode == 4) ? 6 : 8;
//const uint32_t WEIGHT_VALS = 1 << WEIGHT_BITS;
//const uint32_t A_WEIGHT_VALS = 1 << A_WEIGHT_BITS;
uint32_t bit_offset = 0;
const uint8_t* pBuf = static_cast<const uint8_t*>(pBlock_bits);
if (read_bits32(pBuf, bit_offset, mode + 1) != (1U << mode)) return false;
const uint32_t comp_rot = read_bits32(pBuf, bit_offset, 2);
const uint32_t index_mode = (mode == 4) ? read_bits32(pBuf, bit_offset, 1) : 0;
color_rgba endpoints[ENDPOINTS];
for (uint32_t c = 0; c < COMPS; c++)
for (uint32_t e = 0; e < ENDPOINTS; e++)
endpoints[e][c] = (uint8_t)read_bits32(pBuf, bit_offset, (c == 3) ? A_ENDPOINT_BITS : ENDPOINT_BITS);
const uint32_t weight_bits[2] = { index_mode ? A_WEIGHT_BITS : WEIGHT_BITS, index_mode ? WEIGHT_BITS : A_WEIGHT_BITS };
uint32_t weights[16], a_weights[16];
for (uint32_t i = 0; i < 16; i++)
(index_mode ? a_weights : weights)[i] = read_bits32(pBuf, bit_offset, weight_bits[index_mode] - ((!i) ? 1 : 0));
for (uint32_t i = 0; i < 16; i++)
(index_mode ? weights : a_weights)[i] = read_bits32(pBuf, bit_offset, weight_bits[1 - index_mode] - ((!i) ? 1 : 0));
assert(bit_offset == 128);
for (uint32_t e = 0; e < ENDPOINTS; e++)
for (uint32_t c = 0; c < 4; c++)
endpoints[e][c] = (uint8_t)bc7_dequant(endpoints[e][c], (c == 3) ? A_ENDPOINT_BITS : ENDPOINT_BITS);
color_rgba block_colors[8];
for (uint32_t i = 0; i < (1U << weight_bits[0]); i++)
for (uint32_t c = 0; c < 3; c++)
block_colors[i][c] = (uint8_t)bc7_interp(endpoints[0][c], endpoints[1][c], i, weight_bits[0]);
for (uint32_t i = 0; i < (1U << weight_bits[1]); i++)
block_colors[i][3] = (uint8_t)bc7_interp(endpoints[0][3], endpoints[1][3], i, weight_bits[1]);
for (uint32_t i = 0; i < 16; i++)
{
pPixels[i] = block_colors[weights[i]];
pPixels[i].a = block_colors[a_weights[i]].a;
if (comp_rot >= 1)
std::swap(pPixels[i].a, pPixels[i].m_comps[comp_rot - 1]);
}
return true;
}
struct bc7_mode_6
{
struct
{
uint64_t m_mode : 7;
uint64_t m_r0 : 7;
uint64_t m_r1 : 7;
uint64_t m_g0 : 7;
uint64_t m_g1 : 7;
uint64_t m_b0 : 7;
uint64_t m_b1 : 7;
uint64_t m_a0 : 7;
uint64_t m_a1 : 7;
uint64_t m_p0 : 1;
} m_lo;
union
{
struct
{
uint64_t m_p1 : 1;
uint64_t m_s00 : 3;
uint64_t m_s10 : 4;
uint64_t m_s20 : 4;
uint64_t m_s30 : 4;
uint64_t m_s01 : 4;
uint64_t m_s11 : 4;
uint64_t m_s21 : 4;
uint64_t m_s31 : 4;
uint64_t m_s02 : 4;
uint64_t m_s12 : 4;
uint64_t m_s22 : 4;
uint64_t m_s32 : 4;
uint64_t m_s03 : 4;
uint64_t m_s13 : 4;
uint64_t m_s23 : 4;
uint64_t m_s33 : 4;
} m_hi;
uint64_t m_hi_bits;
};
};
bool unpack_bc7_mode6(const void *pBlock_bits, color_rgba *pPixels)
{
static_assert(sizeof(bc7_mode_6) == 16, "sizeof(bc7_mode_6) == 16");
const bc7_mode_6 &block = *static_cast<const bc7_mode_6 *>(pBlock_bits);
if (block.m_lo.m_mode != (1 << 6))
return false;
const uint32_t r0 = (uint32_t)((block.m_lo.m_r0 << 1) | block.m_lo.m_p0);
const uint32_t g0 = (uint32_t)((block.m_lo.m_g0 << 1) | block.m_lo.m_p0);
const uint32_t b0 = (uint32_t)((block.m_lo.m_b0 << 1) | block.m_lo.m_p0);
const uint32_t a0 = (uint32_t)((block.m_lo.m_a0 << 1) | block.m_lo.m_p0);
const uint32_t r1 = (uint32_t)((block.m_lo.m_r1 << 1) | block.m_hi.m_p1);
const uint32_t g1 = (uint32_t)((block.m_lo.m_g1 << 1) | block.m_hi.m_p1);
const uint32_t b1 = (uint32_t)((block.m_lo.m_b1 << 1) | block.m_hi.m_p1);
const uint32_t a1 = (uint32_t)((block.m_lo.m_a1 << 1) | block.m_hi.m_p1);
color_rgba vals[16];
for (uint32_t i = 0; i < 16; i++)
{
const uint32_t w = g_bc7_weights4[i];
const uint32_t iw = 64 - w;
vals[i].set_noclamp_rgba(
(r0 * iw + r1 * w + 32) >> 6,
(g0 * iw + g1 * w + 32) >> 6,
(b0 * iw + b1 * w + 32) >> 6,
(a0 * iw + a1 * w + 32) >> 6);
}
pPixels[0] = vals[block.m_hi.m_s00];
pPixels[1] = vals[block.m_hi.m_s10];
pPixels[2] = vals[block.m_hi.m_s20];
pPixels[3] = vals[block.m_hi.m_s30];
pPixels[4] = vals[block.m_hi.m_s01];
pPixels[5] = vals[block.m_hi.m_s11];
pPixels[6] = vals[block.m_hi.m_s21];
pPixels[7] = vals[block.m_hi.m_s31];
pPixels[8] = vals[block.m_hi.m_s02];
pPixels[9] = vals[block.m_hi.m_s12];
pPixels[10] = vals[block.m_hi.m_s22];
pPixels[11] = vals[block.m_hi.m_s32];
pPixels[12] = vals[block.m_hi.m_s03];
pPixels[13] = vals[block.m_hi.m_s13];
pPixels[14] = vals[block.m_hi.m_s23];
pPixels[15] = vals[block.m_hi.m_s33];
return true;
}
bool unpack_bc7(const void *pBlock, color_rgba *pPixels)
{
const uint32_t first_byte = static_cast<const uint8_t*>(pBlock)[0];
for (uint32_t mode = 0; mode <= 7; mode++)
{
if (first_byte & (1U << mode))
{
switch (mode)
{
case 0:
case 2:
return unpack_bc7_mode0_2(mode, pBlock, pPixels);
case 1:
case 3:
case 7:
return unpack_bc7_mode1_3_7(mode, pBlock, pPixels);
case 4:
case 5:
return unpack_bc7_mode4_5(mode, pBlock, pPixels);
case 6:
return unpack_bc7_mode6(pBlock, pPixels);
default:
break;
}
}
}
return false;
}
} // namespace bc7decomp
/*
------------------------------------------------------------------------------
This software is available under 2 licenses -- choose whichever you prefer.
------------------------------------------------------------------------------
ALTERNATIVE A - MIT License
Copyright(c) 2020 Richard Geldreich, Jr.
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files(the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and / or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions :
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
------------------------------------------------------------------------------
ALTERNATIVE B - Public Domain(www.unlicense.org)
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
software, either in source code form or as a compiled binary, for any purpose,
commercial or non - commercial, and by any means.
In jurisdictions that recognize copyright laws, the author or authors of this
software dedicate any and all copyright interest in the software to the public
domain.We make this dedication for the benefit of the public at large and to
the detriment of our heirs and successors.We intend this dedication to be an
overt act of relinquishment in perpetuity of all present and future rights to
this software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
------------------------------------------------------------------------------
*/

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#pragma once
#include <stdlib.h>
#include <stdint.h>
#include <algorithm>
#include <math.h>
#include <assert.h>
namespace bc7decomp
{
enum eNoClamp { cNoClamp };
template <typename S> inline S clamp(S value, S low, S high) { return (value < low) ? low : ((value > high) ? high : value); }
class color_rgba
{
public:
union
{
uint8_t m_comps[4];
struct
{
uint8_t r;
uint8_t g;
uint8_t b;
uint8_t a;
};
};
inline color_rgba()
{
static_assert(sizeof(*this) == 4, "sizeof(*this) != 4");
}
inline color_rgba(int y)
{
set(y);
}
inline color_rgba(int y, int na)
{
set(y, na);
}
inline color_rgba(int sr, int sg, int sb, int sa)
{
set(sr, sg, sb, sa);
}
inline color_rgba(eNoClamp, int sr, int sg, int sb, int sa)
{
set_noclamp_rgba((uint8_t)sr, (uint8_t)sg, (uint8_t)sb, (uint8_t)sa);
}
inline color_rgba& set_noclamp_y(int y)
{
m_comps[0] = (uint8_t)y;
m_comps[1] = (uint8_t)y;
m_comps[2] = (uint8_t)y;
m_comps[3] = (uint8_t)255;
return *this;
}
inline color_rgba &set_noclamp_rgba(int sr, int sg, int sb, int sa)
{
m_comps[0] = (uint8_t)sr;
m_comps[1] = (uint8_t)sg;
m_comps[2] = (uint8_t)sb;
m_comps[3] = (uint8_t)sa;
return *this;
}
inline color_rgba &set(int y)
{
m_comps[0] = static_cast<uint8_t>(clamp<int>(y, 0, 255));
m_comps[1] = m_comps[0];
m_comps[2] = m_comps[0];
m_comps[3] = 255;
return *this;
}
inline color_rgba &set(int y, int na)
{
m_comps[0] = static_cast<uint8_t>(clamp<int>(y, 0, 255));
m_comps[1] = m_comps[0];
m_comps[2] = m_comps[0];
m_comps[3] = static_cast<uint8_t>(clamp<int>(na, 0, 255));
return *this;
}
inline color_rgba &set(int sr, int sg, int sb, int sa)
{
m_comps[0] = static_cast<uint8_t>(clamp<int>(sr, 0, 255));
m_comps[1] = static_cast<uint8_t>(clamp<int>(sg, 0, 255));
m_comps[2] = static_cast<uint8_t>(clamp<int>(sb, 0, 255));
m_comps[3] = static_cast<uint8_t>(clamp<int>(sa, 0, 255));
return *this;
}
inline color_rgba &set_rgb(int sr, int sg, int sb)
{
m_comps[0] = static_cast<uint8_t>(clamp<int>(sr, 0, 255));
m_comps[1] = static_cast<uint8_t>(clamp<int>(sg, 0, 255));
m_comps[2] = static_cast<uint8_t>(clamp<int>(sb, 0, 255));
return *this;
}
inline color_rgba &set_rgb(const color_rgba &other)
{
r = other.r;
g = other.g;
b = other.b;
return *this;
}
inline const uint8_t &operator[] (uint32_t index) const { assert(index < 4); return m_comps[index]; }
inline uint8_t &operator[] (uint32_t index) { assert(index < 4); return m_comps[index]; }
inline void clear()
{
m_comps[0] = 0;
m_comps[1] = 0;
m_comps[2] = 0;
m_comps[3] = 0;
}
inline bool operator== (const color_rgba &rhs) const
{
if (m_comps[0] != rhs.m_comps[0]) return false;
if (m_comps[1] != rhs.m_comps[1]) return false;
if (m_comps[2] != rhs.m_comps[2]) return false;
if (m_comps[3] != rhs.m_comps[3]) return false;
return true;
}
inline bool operator!= (const color_rgba &rhs) const
{
return !(*this == rhs);
}
inline bool operator<(const color_rgba &rhs) const
{
for (int i = 0; i < 4; i++)
{
if (m_comps[i] < rhs.m_comps[i])
return true;
else if (m_comps[i] != rhs.m_comps[i])
return false;
}
return false;
}
inline int get_601_luma() const { return (19595U * m_comps[0] + 38470U * m_comps[1] + 7471U * m_comps[2] + 32768U) >> 16U; }
inline int get_709_luma() const { return (13938U * m_comps[0] + 46869U * m_comps[1] + 4729U * m_comps[2] + 32768U) >> 16U; }
inline int get_luma(bool luma_601) const { return luma_601 ? get_601_luma() : get_709_luma(); }
static color_rgba comp_min(const color_rgba& a, const color_rgba& b) { return color_rgba(std::min(a[0], b[0]), std::min(a[1], b[1]), std::min(a[2], b[2]), std::min(a[3], b[3])); }
static color_rgba comp_max(const color_rgba& a, const color_rgba& b) { return color_rgba(std::max(a[0], b[0]), std::max(a[1], b[1]), std::max(a[2], b[2]), std::max(a[3], b[3])); }
};
bool unpack_bc7(const void *pBlock, color_rgba *pPixels);
} // namespace bc7decomp

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src/rgbcx/test/bc7enc.c
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// File: bc7enc.h - Richard Geldreich, Jr. - MIT license or public domain (see end of bc7enc.c)
#include <stdlib.h>
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
#define BC7ENC_BLOCK_SIZE (16)
#define BC7ENC_MAX_PARTITIONS1 (64)
#define BC7ENC_MAX_UBER_LEVEL (4)
typedef uint8_t bc7enc_bool;
#define BC7ENC_TRUE (1)
#define BC7ENC_FALSE (0)
typedef struct
{
// m_max_partitions_mode may range from 0 (disables mode 1) to BC7ENC_MAX_PARTITIONS1. The higher this value, the slower the compressor, but the higher the quality.
uint32_t m_max_partitions_mode;
// Relative RGBA or YCbCrA Weights.
uint32_t m_weights[4];
// m_uber_level may range from 0 to BC7ENC_MAX_UBER_LEVEL. The higher this value, the slower the compressor, but the higher the quality.
uint32_t m_uber_level;
// If m_perceptual is true, colorspace error is computed in YCbCr space, otherwise RGB.
bc7enc_bool m_perceptual;
// Set m_try_least_squares to false for slightly faster/lower quality compression.
bc7enc_bool m_try_least_squares;
// When m_mode_partition_estimation_filterbank, the mode1 partition estimator skips lesser used partition patterns unless they are strongly predicted to be potentially useful.
// There's a slight loss in quality with this enabled (around .08 dB RGB PSNR or .05 dB Y PSNR), but up to a 11% gain in speed depending on the other settings.
bc7enc_bool m_mode_partition_estimation_filterbank;
bc7enc_bool m_use_mode5_for_alpha;
bc7enc_bool m_use_mode7_for_alpha;
} bc7enc_compress_block_params;
inline void bc7enc_compress_block_params_init_linear_weights(bc7enc_compress_block_params *p)
{
p->m_perceptual = BC7ENC_FALSE;
p->m_weights[0] = 1;
p->m_weights[1] = 1;
p->m_weights[2] = 1;
p->m_weights[3] = 1;
}
inline void bc7enc_compress_block_params_init_perceptual_weights(bc7enc_compress_block_params *p)
{
p->m_perceptual = BC7ENC_TRUE;
p->m_weights[0] = 128;
p->m_weights[1] = 64;
p->m_weights[2] = 16;
p->m_weights[3] = 32;
}
inline void bc7enc_compress_block_params_init(bc7enc_compress_block_params *p)
{
p->m_max_partitions_mode = BC7ENC_MAX_PARTITIONS1;
p->m_try_least_squares = BC7ENC_TRUE;
p->m_mode_partition_estimation_filterbank = BC7ENC_TRUE;
p->m_uber_level = 0;
p->m_use_mode5_for_alpha = BC7ENC_TRUE;
p->m_use_mode7_for_alpha = BC7ENC_TRUE;
bc7enc_compress_block_params_init_perceptual_weights(p);
}
// bc7enc_compress_block_init() MUST be called before calling bc7enc_compress_block() (or you'll get artifacts).
void bc7enc_compress_block_init();
// Packs a single block of 16x16 RGBA pixels (R first in memory) to 128-bit BC7 block pBlock, using either mode 1 and/or 6.
// Alpha blocks will always use mode 6, and by default opaque blocks will use either modes 1 or 6.
// Returns BC7ENC_TRUE if the block had any pixels with alpha < 255, otherwise it return BC7ENC_FALSE. (This is not an error code - a block is always encoded.)
bc7enc_bool bc7enc_compress_block(void *pBlock, const void *pPixelsRGBA, const bc7enc_compress_block_params *pComp_params);
#ifdef __cplusplus
}
#endif

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// File: dds_defs.h
// DX9/10 .DDS file header definitions.
#pragma once
#define PIXEL_FMT_FOURCC(a, b, c, d) ((a) | ((b) << 8U) | ((c) << 16U) | ((d) << 24U))
enum pixel_format
{
PIXEL_FMT_INVALID = 0,
PIXEL_FMT_DXT1 = PIXEL_FMT_FOURCC('D', 'X', 'T', '1'),
PIXEL_FMT_DXT2 = PIXEL_FMT_FOURCC('D', 'X', 'T', '2'),
PIXEL_FMT_DXT3 = PIXEL_FMT_FOURCC('D', 'X', 'T', '3'),
PIXEL_FMT_DXT4 = PIXEL_FMT_FOURCC('D', 'X', 'T', '4'),
PIXEL_FMT_DXT5 = PIXEL_FMT_FOURCC('D', 'X', 'T', '5'),
PIXEL_FMT_3DC = PIXEL_FMT_FOURCC('A', 'T', 'I', '2'), // DXN_YX
PIXEL_FMT_DXN = PIXEL_FMT_FOURCC('A', '2', 'X', 'Y'), // DXN_XY
PIXEL_FMT_DXT5A = PIXEL_FMT_FOURCC('A', 'T', 'I', '1'), // ATI1N, http://developer.amd.com/media/gpu_assets/Radeon_X1x00_Programming_Guide.pdf
// Non-standard formats (some of these are supported by ATI's Compressonator)
PIXEL_FMT_DXT5_CCxY = PIXEL_FMT_FOURCC('C', 'C', 'x', 'Y'),
PIXEL_FMT_DXT5_xGxR = PIXEL_FMT_FOURCC('x', 'G', 'x', 'R'),
PIXEL_FMT_DXT5_xGBR = PIXEL_FMT_FOURCC('x', 'G', 'B', 'R'),
PIXEL_FMT_DXT5_AGBR = PIXEL_FMT_FOURCC('A', 'G', 'B', 'R'),
PIXEL_FMT_DXT1A = PIXEL_FMT_FOURCC('D', 'X', '1', 'A'),
PIXEL_FMT_ETC1 = PIXEL_FMT_FOURCC('E', 'T', 'C', '1'),
PIXEL_FMT_R8G8B8 = PIXEL_FMT_FOURCC('R', 'G', 'B', 'x'),
PIXEL_FMT_L8 = PIXEL_FMT_FOURCC('L', 'x', 'x', 'x'),
PIXEL_FMT_A8 = PIXEL_FMT_FOURCC('x', 'x', 'x', 'A'),
PIXEL_FMT_A8L8 = PIXEL_FMT_FOURCC('L', 'x', 'x', 'A'),
PIXEL_FMT_A8R8G8B8 = PIXEL_FMT_FOURCC('R', 'G', 'B', 'A')
};
const uint32_t cDDSMaxImageDimensions = 8192U;
// Total size of header is sizeof(uint32)+cDDSSizeofDDSurfaceDesc2;
const uint32_t cDDSSizeofDDSurfaceDesc2 = 124;
// "DDS "
const uint32_t cDDSFileSignature = 0x20534444;
struct DDCOLORKEY
{
uint32_t dwUnused0;
uint32_t dwUnused1;
};
struct DDPIXELFORMAT
{
uint32_t dwSize;
uint32_t dwFlags;
uint32_t dwFourCC;
uint32_t dwRGBBitCount; // ATI compressonator will place a FOURCC code here for swizzled/cooked DXTn formats
uint32_t dwRBitMask;
uint32_t dwGBitMask;
uint32_t dwBBitMask;
uint32_t dwRGBAlphaBitMask;
};
struct DDSCAPS2
{
uint32_t dwCaps;
uint32_t dwCaps2;
uint32_t dwCaps3;
uint32_t dwCaps4;
};
struct DDSURFACEDESC2
{
uint32_t dwSize;
uint32_t dwFlags;
uint32_t dwHeight;
uint32_t dwWidth;
union
{
int32_t lPitch;
uint32_t dwLinearSize;
};
uint32_t dwBackBufferCount;
uint32_t dwMipMapCount;
uint32_t dwAlphaBitDepth;
uint32_t dwUnused0;
uint32_t lpSurface;
DDCOLORKEY unused0;
DDCOLORKEY unused1;
DDCOLORKEY unused2;
DDCOLORKEY unused3;
DDPIXELFORMAT ddpfPixelFormat;
DDSCAPS2 ddsCaps;
uint32_t dwUnused1;
};
const uint32_t DDSD_CAPS = 0x00000001;
const uint32_t DDSD_HEIGHT = 0x00000002;
const uint32_t DDSD_WIDTH = 0x00000004;
const uint32_t DDSD_PITCH = 0x00000008;
const uint32_t DDSD_BACKBUFFERCOUNT = 0x00000020;
const uint32_t DDSD_ZBUFFERBITDEPTH = 0x00000040;
const uint32_t DDSD_ALPHABITDEPTH = 0x00000080;
const uint32_t DDSD_LPSURFACE = 0x00000800;
const uint32_t DDSD_PIXELFORMAT = 0x00001000;
const uint32_t DDSD_CKDESTOVERLAY = 0x00002000;
const uint32_t DDSD_CKDESTBLT = 0x00004000;
const uint32_t DDSD_CKSRCOVERLAY = 0x00008000;
const uint32_t DDSD_CKSRCBLT = 0x00010000;
const uint32_t DDSD_MIPMAPCOUNT = 0x00020000;
const uint32_t DDSD_REFRESHRATE = 0x00040000;
const uint32_t DDSD_LINEARSIZE = 0x00080000;
const uint32_t DDSD_TEXTURESTAGE = 0x00100000;
const uint32_t DDSD_FVF = 0x00200000;
const uint32_t DDSD_SRCVBHANDLE = 0x00400000;
const uint32_t DDSD_DEPTH = 0x00800000;
const uint32_t DDSD_ALL = 0x00fff9ee;
const uint32_t DDPF_ALPHAPIXELS = 0x00000001;
const uint32_t DDPF_ALPHA = 0x00000002;
const uint32_t DDPF_FOURCC = 0x00000004;
const uint32_t DDPF_PALETTEINDEXED8 = 0x00000020;
const uint32_t DDPF_RGB = 0x00000040;
const uint32_t DDPF_LUMINANCE = 0x00020000;
const uint32_t DDSCAPS_COMPLEX = 0x00000008;
const uint32_t DDSCAPS_TEXTURE = 0x00001000;
const uint32_t DDSCAPS_MIPMAP = 0x00400000;
const uint32_t DDSCAPS2_CUBEMAP = 0x00000200;
const uint32_t DDSCAPS2_CUBEMAP_POSITIVEX = 0x00000400;
const uint32_t DDSCAPS2_CUBEMAP_NEGATIVEX = 0x00000800;
const uint32_t DDSCAPS2_CUBEMAP_POSITIVEY = 0x00001000;
const uint32_t DDSCAPS2_CUBEMAP_NEGATIVEY = 0x00002000;
const uint32_t DDSCAPS2_CUBEMAP_POSITIVEZ = 0x00004000;
const uint32_t DDSCAPS2_CUBEMAP_NEGATIVEZ = 0x00008000;
const uint32_t DDSCAPS2_VOLUME = 0x00200000;
typedef enum DXGI_FORMAT
{
DXGI_FORMAT_UNKNOWN = 0,
DXGI_FORMAT_R32G32B32A32_TYPELESS = 1,
DXGI_FORMAT_R32G32B32A32_FLOAT = 2,
DXGI_FORMAT_R32G32B32A32_UINT = 3,
DXGI_FORMAT_R32G32B32A32_SINT = 4,
DXGI_FORMAT_R32G32B32_TYPELESS = 5,
DXGI_FORMAT_R32G32B32_FLOAT = 6,
DXGI_FORMAT_R32G32B32_UINT = 7,
DXGI_FORMAT_R32G32B32_SINT = 8,
DXGI_FORMAT_R16G16B16A16_TYPELESS = 9,
DXGI_FORMAT_R16G16B16A16_FLOAT = 10,
DXGI_FORMAT_R16G16B16A16_UNORM = 11,
DXGI_FORMAT_R16G16B16A16_UINT = 12,
DXGI_FORMAT_R16G16B16A16_SNORM = 13,
DXGI_FORMAT_R16G16B16A16_SINT = 14,
DXGI_FORMAT_R32G32_TYPELESS = 15,
DXGI_FORMAT_R32G32_FLOAT = 16,
DXGI_FORMAT_R32G32_UINT = 17,
DXGI_FORMAT_R32G32_SINT = 18,
DXGI_FORMAT_R32G8X24_TYPELESS = 19,
DXGI_FORMAT_D32_FLOAT_S8X24_UINT = 20,
DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS = 21,
DXGI_FORMAT_X32_TYPELESS_G8X24_UINT = 22,
DXGI_FORMAT_R10G10B10A2_TYPELESS = 23,
DXGI_FORMAT_R10G10B10A2_UNORM = 24,
DXGI_FORMAT_R10G10B10A2_UINT = 25,
DXGI_FORMAT_R11G11B10_FLOAT = 26,
DXGI_FORMAT_R8G8B8A8_TYPELESS = 27,
DXGI_FORMAT_R8G8B8A8_UNORM = 28,
DXGI_FORMAT_R8G8B8A8_UNORM_SRGB = 29,
DXGI_FORMAT_R8G8B8A8_UINT = 30,
DXGI_FORMAT_R8G8B8A8_SNORM = 31,
DXGI_FORMAT_R8G8B8A8_SINT = 32,
DXGI_FORMAT_R16G16_TYPELESS = 33,
DXGI_FORMAT_R16G16_FLOAT = 34,
DXGI_FORMAT_R16G16_UNORM = 35,
DXGI_FORMAT_R16G16_UINT = 36,
DXGI_FORMAT_R16G16_SNORM = 37,
DXGI_FORMAT_R16G16_SINT = 38,
DXGI_FORMAT_R32_TYPELESS = 39,
DXGI_FORMAT_D32_FLOAT = 40,
DXGI_FORMAT_R32_FLOAT = 41,
DXGI_FORMAT_R32_UINT = 42,
DXGI_FORMAT_R32_SINT = 43,
DXGI_FORMAT_R24G8_TYPELESS = 44,
DXGI_FORMAT_D24_UNORM_S8_UINT = 45,
DXGI_FORMAT_R24_UNORM_X8_TYPELESS = 46,
DXGI_FORMAT_X24_TYPELESS_G8_UINT = 47,
DXGI_FORMAT_R8G8_TYPELESS = 48,
DXGI_FORMAT_R8G8_UNORM = 49,
DXGI_FORMAT_R8G8_UINT = 50,
DXGI_FORMAT_R8G8_SNORM = 51,
DXGI_FORMAT_R8G8_SINT = 52,
DXGI_FORMAT_R16_TYPELESS = 53,
DXGI_FORMAT_R16_FLOAT = 54,
DXGI_FORMAT_D16_UNORM = 55,
DXGI_FORMAT_R16_UNORM = 56,
DXGI_FORMAT_R16_UINT = 57,
DXGI_FORMAT_R16_SNORM = 58,
DXGI_FORMAT_R16_SINT = 59,
DXGI_FORMAT_R8_TYPELESS = 60,
DXGI_FORMAT_R8_UNORM = 61,
DXGI_FORMAT_R8_UINT = 62,
DXGI_FORMAT_R8_SNORM = 63,
DXGI_FORMAT_R8_SINT = 64,
DXGI_FORMAT_A8_UNORM = 65,
DXGI_FORMAT_R1_UNORM = 66,
DXGI_FORMAT_R9G9B9E5_SHAREDEXP = 67,
DXGI_FORMAT_R8G8_B8G8_UNORM = 68,
DXGI_FORMAT_G8R8_G8B8_UNORM = 69,
DXGI_FORMAT_BC1_TYPELESS = 70,
DXGI_FORMAT_BC1_UNORM = 71,
DXGI_FORMAT_BC1_UNORM_SRGB = 72,
DXGI_FORMAT_BC2_TYPELESS = 73,
DXGI_FORMAT_BC2_UNORM = 74,
DXGI_FORMAT_BC2_UNORM_SRGB = 75,
DXGI_FORMAT_BC3_TYPELESS = 76,
DXGI_FORMAT_BC3_UNORM = 77,
DXGI_FORMAT_BC3_UNORM_SRGB = 78,
DXGI_FORMAT_BC4_TYPELESS = 79,
DXGI_FORMAT_BC4_UNORM = 80,
DXGI_FORMAT_BC4_SNORM = 81,
DXGI_FORMAT_BC5_TYPELESS = 82,
DXGI_FORMAT_BC5_UNORM = 83,
DXGI_FORMAT_BC5_SNORM = 84,
DXGI_FORMAT_B5G6R5_UNORM = 85,
DXGI_FORMAT_B5G5R5A1_UNORM = 86,
DXGI_FORMAT_B8G8R8A8_UNORM = 87,
DXGI_FORMAT_B8G8R8X8_UNORM = 88,
DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM = 89,
DXGI_FORMAT_B8G8R8A8_TYPELESS = 90,
DXGI_FORMAT_B8G8R8A8_UNORM_SRGB = 91,
DXGI_FORMAT_B8G8R8X8_TYPELESS = 92,
DXGI_FORMAT_B8G8R8X8_UNORM_SRGB = 93,
DXGI_FORMAT_BC6H_TYPELESS = 94,
DXGI_FORMAT_BC6H_UF16 = 95,
DXGI_FORMAT_BC6H_SF16 = 96,
DXGI_FORMAT_BC7_TYPELESS = 97,
DXGI_FORMAT_BC7_UNORM = 98,
DXGI_FORMAT_BC7_UNORM_SRGB = 99,
DXGI_FORMAT_AYUV = 100,
DXGI_FORMAT_Y410 = 101,
DXGI_FORMAT_Y416 = 102,
DXGI_FORMAT_NV12 = 103,
DXGI_FORMAT_P010 = 104,
DXGI_FORMAT_P016 = 105,
DXGI_FORMAT_420_OPAQUE = 106,
DXGI_FORMAT_YUY2 = 107,
DXGI_FORMAT_Y210 = 108,
DXGI_FORMAT_Y216 = 109,
DXGI_FORMAT_NV11 = 110,
DXGI_FORMAT_AI44 = 111,
DXGI_FORMAT_IA44 = 112,
DXGI_FORMAT_P8 = 113,
DXGI_FORMAT_A8P8 = 114,
DXGI_FORMAT_B4G4R4A4_UNORM = 115,
DXGI_FORMAT_P208 = 130,
DXGI_FORMAT_V208 = 131,
DXGI_FORMAT_V408 = 132,
DXGI_FORMAT_FORCE_UINT = 0xffffffff
} DXGI_FORMAT;
enum D3D10_RESOURCE_DIMENSION
{
D3D10_RESOURCE_DIMENSION_UNKNOWN = 0,
D3D10_RESOURCE_DIMENSION_BUFFER = 1,
D3D10_RESOURCE_DIMENSION_TEXTURE1D = 2,
D3D10_RESOURCE_DIMENSION_TEXTURE2D = 3,
D3D10_RESOURCE_DIMENSION_TEXTURE3D = 4
};
struct DDS_HEADER_DXT10
{
DXGI_FORMAT dxgiFormat;
D3D10_RESOURCE_DIMENSION resourceDimension;
uint32_t miscFlag;
uint32_t arraySize;
uint32_t miscFlags2;
};

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