| // Copyright 2019 The libgav1 Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| // This file contains all the scan order tables. |
| |
| constexpr uint16_t kDefaultScan4x4[16] = {0, 1, 4, 8, 5, 2, 3, 6, |
| 9, 12, 13, 10, 7, 11, 14, 15}; |
| |
| constexpr uint16_t kColumnScan4x4[16] = {0, 4, 8, 12, 1, 5, 9, 13, |
| 2, 6, 10, 14, 3, 7, 11, 15}; |
| |
| constexpr uint16_t kRowScan4x4[16] = {0, 1, 2, 3, 4, 5, 6, 7, |
| 8, 9, 10, 11, 12, 13, 14, 15}; |
| |
| constexpr uint16_t kDefaultScan4x8[32] = { |
| 0, 1, 4, 2, 5, 8, 3, 6, 9, 12, 7, 10, 13, 16, 11, 14, |
| 17, 20, 15, 18, 21, 24, 19, 22, 25, 28, 23, 26, 29, 27, 30, 31}; |
| |
| constexpr uint16_t kColumnScan4x8[32] = { |
| 0, 4, 8, 12, 16, 20, 24, 28, 1, 5, 9, 13, 17, 21, 25, 29, |
| 2, 6, 10, 14, 18, 22, 26, 30, 3, 7, 11, 15, 19, 23, 27, 31}; |
| |
| constexpr uint16_t kRowScan4x8[32] = { |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
| 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31}; |
| |
| constexpr uint16_t kDefaultScan8x4[32] = { |
| 0, 8, 1, 16, 9, 2, 24, 17, 10, 3, 25, 18, 11, 4, 26, 19, |
| 12, 5, 27, 20, 13, 6, 28, 21, 14, 7, 29, 22, 15, 30, 23, 31}; |
| |
| constexpr uint16_t kColumnScan8x4[32] = { |
| 0, 8, 16, 24, 1, 9, 17, 25, 2, 10, 18, 26, 3, 11, 19, 27, |
| 4, 12, 20, 28, 5, 13, 21, 29, 6, 14, 22, 30, 7, 15, 23, 31}; |
| |
| constexpr uint16_t kRowScan8x4[32] = { |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
| 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31}; |
| |
| constexpr uint16_t kDefaultScan8x8[64] = { |
| 0, 1, 8, 16, 9, 2, 3, 10, 17, 24, 32, 25, 18, 11, 4, 5, |
| 12, 19, 26, 33, 40, 48, 41, 34, 27, 20, 13, 6, 7, 14, 21, 28, |
| 35, 42, 49, 56, 57, 50, 43, 36, 29, 22, 15, 23, 30, 37, 44, 51, |
| 58, 59, 52, 45, 38, 31, 39, 46, 53, 60, 61, 54, 47, 55, 62, 63}; |
| |
| constexpr uint16_t kColumnScan8x8[64] = { |
| 0, 8, 16, 24, 32, 40, 48, 56, 1, 9, 17, 25, 33, 41, 49, 57, |
| 2, 10, 18, 26, 34, 42, 50, 58, 3, 11, 19, 27, 35, 43, 51, 59, |
| 4, 12, 20, 28, 36, 44, 52, 60, 5, 13, 21, 29, 37, 45, 53, 61, |
| 6, 14, 22, 30, 38, 46, 54, 62, 7, 15, 23, 31, 39, 47, 55, 63}; |
| |
| constexpr uint16_t kRowScan8x8[64] = { |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
| 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, |
| 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, |
| 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63}; |
| |
| constexpr uint16_t kDefaultScan8x16[128] = { |
| 0, 1, 8, 2, 9, 16, 3, 10, 17, 24, 4, 11, 18, 25, 32, |
| 5, 12, 19, 26, 33, 40, 6, 13, 20, 27, 34, 41, 48, 7, 14, |
| 21, 28, 35, 42, 49, 56, 15, 22, 29, 36, 43, 50, 57, 64, 23, |
| 30, 37, 44, 51, 58, 65, 72, 31, 38, 45, 52, 59, 66, 73, 80, |
| 39, 46, 53, 60, 67, 74, 81, 88, 47, 54, 61, 68, 75, 82, 89, |
| 96, 55, 62, 69, 76, 83, 90, 97, 104, 63, 70, 77, 84, 91, 98, |
| 105, 112, 71, 78, 85, 92, 99, 106, 113, 120, 79, 86, 93, 100, 107, |
| 114, 121, 87, 94, 101, 108, 115, 122, 95, 102, 109, 116, 123, 103, 110, |
| 117, 124, 111, 118, 125, 119, 126, 127}; |
| |
| constexpr uint16_t kColumnScan8x16[128] = { |
| 0, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, |
| 1, 9, 17, 25, 33, 41, 49, 57, 65, 73, 81, 89, 97, 105, 113, 121, |
| 2, 10, 18, 26, 34, 42, 50, 58, 66, 74, 82, 90, 98, 106, 114, 122, |
| 3, 11, 19, 27, 35, 43, 51, 59, 67, 75, 83, 91, 99, 107, 115, 123, |
| 4, 12, 20, 28, 36, 44, 52, 60, 68, 76, 84, 92, 100, 108, 116, 124, |
| 5, 13, 21, 29, 37, 45, 53, 61, 69, 77, 85, 93, 101, 109, 117, 125, |
| 6, 14, 22, 30, 38, 46, 54, 62, 70, 78, 86, 94, 102, 110, 118, 126, |
| 7, 15, 23, 31, 39, 47, 55, 63, 71, 79, 87, 95, 103, 111, 119, 127}; |
| |
| constexpr uint16_t kRowScan8x16[128] = { |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, |
| 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, |
| 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, |
| 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, |
| 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, |
| 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, |
| 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, |
| 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, |
| 120, 121, 122, 123, 124, 125, 126, 127}; |
| |
| constexpr uint16_t kDefaultScan16x8[128] = { |
| 0, 16, 1, 32, 17, 2, 48, 33, 18, 3, 64, 49, 34, 19, 4, 80, |
| 65, 50, 35, 20, 5, 96, 81, 66, 51, 36, 21, 6, 112, 97, 82, 67, |
| 52, 37, 22, 7, 113, 98, 83, 68, 53, 38, 23, 8, 114, 99, 84, 69, |
| 54, 39, 24, 9, 115, 100, 85, 70, 55, 40, 25, 10, 116, 101, 86, 71, |
| 56, 41, 26, 11, 117, 102, 87, 72, 57, 42, 27, 12, 118, 103, 88, 73, |
| 58, 43, 28, 13, 119, 104, 89, 74, 59, 44, 29, 14, 120, 105, 90, 75, |
| 60, 45, 30, 15, 121, 106, 91, 76, 61, 46, 31, 122, 107, 92, 77, 62, |
| 47, 123, 108, 93, 78, 63, 124, 109, 94, 79, 125, 110, 95, 126, 111, 127}; |
| |
| constexpr uint16_t kColumnScan16x8[128] = { |
| 0, 16, 32, 48, 64, 80, 96, 112, 1, 17, 33, 49, 65, 81, 97, 113, |
| 2, 18, 34, 50, 66, 82, 98, 114, 3, 19, 35, 51, 67, 83, 99, 115, |
| 4, 20, 36, 52, 68, 84, 100, 116, 5, 21, 37, 53, 69, 85, 101, 117, |
| 6, 22, 38, 54, 70, 86, 102, 118, 7, 23, 39, 55, 71, 87, 103, 119, |
| 8, 24, 40, 56, 72, 88, 104, 120, 9, 25, 41, 57, 73, 89, 105, 121, |
| 10, 26, 42, 58, 74, 90, 106, 122, 11, 27, 43, 59, 75, 91, 107, 123, |
| 12, 28, 44, 60, 76, 92, 108, 124, 13, 29, 45, 61, 77, 93, 109, 125, |
| 14, 30, 46, 62, 78, 94, 110, 126, 15, 31, 47, 63, 79, 95, 111, 127}; |
| |
| constexpr uint16_t kRowScan16x8[128] = { |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, |
| 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, |
| 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, |
| 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, |
| 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, |
| 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, |
| 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, |
| 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, |
| 120, 121, 122, 123, 124, 125, 126, 127}; |
| |
| constexpr uint16_t kDefaultScan16x16[256] = { |
| 0, 1, 16, 32, 17, 2, 3, 18, 33, 48, 64, 49, 34, 19, 4, |
| 5, 20, 35, 50, 65, 80, 96, 81, 66, 51, 36, 21, 6, 7, 22, |
| 37, 52, 67, 82, 97, 112, 128, 113, 98, 83, 68, 53, 38, 23, 8, |
| 9, 24, 39, 54, 69, 84, 99, 114, 129, 144, 160, 145, 130, 115, 100, |
| 85, 70, 55, 40, 25, 10, 11, 26, 41, 56, 71, 86, 101, 116, 131, |
| 146, 161, 176, 192, 177, 162, 147, 132, 117, 102, 87, 72, 57, 42, 27, |
| 12, 13, 28, 43, 58, 73, 88, 103, 118, 133, 148, 163, 178, 193, 208, |
| 224, 209, 194, 179, 164, 149, 134, 119, 104, 89, 74, 59, 44, 29, 14, |
| 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210, 225, |
| 240, 241, 226, 211, 196, 181, 166, 151, 136, 121, 106, 91, 76, 61, 46, |
| 31, 47, 62, 77, 92, 107, 122, 137, 152, 167, 182, 197, 212, 227, 242, |
| 243, 228, 213, 198, 183, 168, 153, 138, 123, 108, 93, 78, 63, 79, 94, |
| 109, 124, 139, 154, 169, 184, 199, 214, 229, 244, 245, 230, 215, 200, 185, |
| 170, 155, 140, 125, 110, 95, 111, 126, 141, 156, 171, 186, 201, 216, 231, |
| 246, 247, 232, 217, 202, 187, 172, 157, 142, 127, 143, 158, 173, 188, 203, |
| 218, 233, 248, 249, 234, 219, 204, 189, 174, 159, 175, 190, 205, 220, 235, |
| 250, 251, 236, 221, 206, 191, 207, 222, 237, 252, 253, 238, 223, 239, 254, |
| 255}; |
| |
| constexpr uint16_t kColumnScan16x16[256] = { |
| 0, 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, 240, |
| 1, 17, 33, 49, 65, 81, 97, 113, 129, 145, 161, 177, 193, 209, 225, 241, |
| 2, 18, 34, 50, 66, 82, 98, 114, 130, 146, 162, 178, 194, 210, 226, 242, |
| 3, 19, 35, 51, 67, 83, 99, 115, 131, 147, 163, 179, 195, 211, 227, 243, |
| 4, 20, 36, 52, 68, 84, 100, 116, 132, 148, 164, 180, 196, 212, 228, 244, |
| 5, 21, 37, 53, 69, 85, 101, 117, 133, 149, 165, 181, 197, 213, 229, 245, |
| 6, 22, 38, 54, 70, 86, 102, 118, 134, 150, 166, 182, 198, 214, 230, 246, |
| 7, 23, 39, 55, 71, 87, 103, 119, 135, 151, 167, 183, 199, 215, 231, 247, |
| 8, 24, 40, 56, 72, 88, 104, 120, 136, 152, 168, 184, 200, 216, 232, 248, |
| 9, 25, 41, 57, 73, 89, 105, 121, 137, 153, 169, 185, 201, 217, 233, 249, |
| 10, 26, 42, 58, 74, 90, 106, 122, 138, 154, 170, 186, 202, 218, 234, 250, |
| 11, 27, 43, 59, 75, 91, 107, 123, 139, 155, 171, 187, 203, 219, 235, 251, |
| 12, 28, 44, 60, 76, 92, 108, 124, 140, 156, 172, 188, 204, 220, 236, 252, |
| 13, 29, 45, 61, 77, 93, 109, 125, 141, 157, 173, 189, 205, 221, 237, 253, |
| 14, 30, 46, 62, 78, 94, 110, 126, 142, 158, 174, 190, 206, 222, 238, 254, |
| 15, 31, 47, 63, 79, 95, 111, 127, 143, 159, 175, 191, 207, 223, 239, 255}; |
| |
| constexpr uint16_t kRowScan16x16[256] = { |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, |
| 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, |
| 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, |
| 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, |
| 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, |
| 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, |
| 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, |
| 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, |
| 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, |
| 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, |
| 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, |
| 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, |
| 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, |
| 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, |
| 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, |
| 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, |
| 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, |
| 255}; |
| |
| constexpr uint16_t kDefaultScan16x32[512] = { |
| 0, 1, 16, 2, 17, 32, 3, 18, 33, 48, 4, 19, 34, 49, 64, |
| 5, 20, 35, 50, 65, 80, 6, 21, 36, 51, 66, 81, 96, 7, 22, |
| 37, 52, 67, 82, 97, 112, 8, 23, 38, 53, 68, 83, 98, 113, 128, |
| 9, 24, 39, 54, 69, 84, 99, 114, 129, 144, 10, 25, 40, 55, 70, |
| 85, 100, 115, 130, 145, 160, 11, 26, 41, 56, 71, 86, 101, 116, 131, |
| 146, 161, 176, 12, 27, 42, 57, 72, 87, 102, 117, 132, 147, 162, 177, |
| 192, 13, 28, 43, 58, 73, 88, 103, 118, 133, 148, 163, 178, 193, 208, |
| 14, 29, 44, 59, 74, 89, 104, 119, 134, 149, 164, 179, 194, 209, 224, |
| 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210, 225, |
| 240, 31, 46, 61, 76, 91, 106, 121, 136, 151, 166, 181, 196, 211, 226, |
| 241, 256, 47, 62, 77, 92, 107, 122, 137, 152, 167, 182, 197, 212, 227, |
| 242, 257, 272, 63, 78, 93, 108, 123, 138, 153, 168, 183, 198, 213, 228, |
| 243, 258, 273, 288, 79, 94, 109, 124, 139, 154, 169, 184, 199, 214, 229, |
| 244, 259, 274, 289, 304, 95, 110, 125, 140, 155, 170, 185, 200, 215, 230, |
| 245, 260, 275, 290, 305, 320, 111, 126, 141, 156, 171, 186, 201, 216, 231, |
| 246, 261, 276, 291, 306, 321, 336, 127, 142, 157, 172, 187, 202, 217, 232, |
| 247, 262, 277, 292, 307, 322, 337, 352, 143, 158, 173, 188, 203, 218, 233, |
| 248, 263, 278, 293, 308, 323, 338, 353, 368, 159, 174, 189, 204, 219, 234, |
| 249, 264, 279, 294, 309, 324, 339, 354, 369, 384, 175, 190, 205, 220, 235, |
| 250, 265, 280, 295, 310, 325, 340, 355, 370, 385, 400, 191, 206, 221, 236, |
| 251, 266, 281, 296, 311, 326, 341, 356, 371, 386, 401, 416, 207, 222, 237, |
| 252, 267, 282, 297, 312, 327, 342, 357, 372, 387, 402, 417, 432, 223, 238, |
| 253, 268, 283, 298, 313, 328, 343, 358, 373, 388, 403, 418, 433, 448, 239, |
| 254, 269, 284, 299, 314, 329, 344, 359, 374, 389, 404, 419, 434, 449, 464, |
| 255, 270, 285, 300, 315, 330, 345, 360, 375, 390, 405, 420, 435, 450, 465, |
| 480, 271, 286, 301, 316, 331, 346, 361, 376, 391, 406, 421, 436, 451, 466, |
| 481, 496, 287, 302, 317, 332, 347, 362, 377, 392, 407, 422, 437, 452, 467, |
| 482, 497, 303, 318, 333, 348, 363, 378, 393, 408, 423, 438, 453, 468, 483, |
| 498, 319, 334, 349, 364, 379, 394, 409, 424, 439, 454, 469, 484, 499, 335, |
| 350, 365, 380, 395, 410, 425, 440, 455, 470, 485, 500, 351, 366, 381, 396, |
| 411, 426, 441, 456, 471, 486, 501, 367, 382, 397, 412, 427, 442, 457, 472, |
| 487, 502, 383, 398, 413, 428, 443, 458, 473, 488, 503, 399, 414, 429, 444, |
| 459, 474, 489, 504, 415, 430, 445, 460, 475, 490, 505, 431, 446, 461, 476, |
| 491, 506, 447, 462, 477, 492, 507, 463, 478, 493, 508, 479, 494, 509, 495, |
| 510, 511}; |
| |
| constexpr uint16_t kDefaultScan32x16[512] = { |
| 0, 32, 1, 64, 33, 2, 96, 65, 34, 3, 128, 97, 66, 35, 4, |
| 160, 129, 98, 67, 36, 5, 192, 161, 130, 99, 68, 37, 6, 224, 193, |
| 162, 131, 100, 69, 38, 7, 256, 225, 194, 163, 132, 101, 70, 39, 8, |
| 288, 257, 226, 195, 164, 133, 102, 71, 40, 9, 320, 289, 258, 227, 196, |
| 165, 134, 103, 72, 41, 10, 352, 321, 290, 259, 228, 197, 166, 135, 104, |
| 73, 42, 11, 384, 353, 322, 291, 260, 229, 198, 167, 136, 105, 74, 43, |
| 12, 416, 385, 354, 323, 292, 261, 230, 199, 168, 137, 106, 75, 44, 13, |
| 448, 417, 386, 355, 324, 293, 262, 231, 200, 169, 138, 107, 76, 45, 14, |
| 480, 449, 418, 387, 356, 325, 294, 263, 232, 201, 170, 139, 108, 77, 46, |
| 15, 481, 450, 419, 388, 357, 326, 295, 264, 233, 202, 171, 140, 109, 78, |
| 47, 16, 482, 451, 420, 389, 358, 327, 296, 265, 234, 203, 172, 141, 110, |
| 79, 48, 17, 483, 452, 421, 390, 359, 328, 297, 266, 235, 204, 173, 142, |
| 111, 80, 49, 18, 484, 453, 422, 391, 360, 329, 298, 267, 236, 205, 174, |
| 143, 112, 81, 50, 19, 485, 454, 423, 392, 361, 330, 299, 268, 237, 206, |
| 175, 144, 113, 82, 51, 20, 486, 455, 424, 393, 362, 331, 300, 269, 238, |
| 207, 176, 145, 114, 83, 52, 21, 487, 456, 425, 394, 363, 332, 301, 270, |
| 239, 208, 177, 146, 115, 84, 53, 22, 488, 457, 426, 395, 364, 333, 302, |
| 271, 240, 209, 178, 147, 116, 85, 54, 23, 489, 458, 427, 396, 365, 334, |
| 303, 272, 241, 210, 179, 148, 117, 86, 55, 24, 490, 459, 428, 397, 366, |
| 335, 304, 273, 242, 211, 180, 149, 118, 87, 56, 25, 491, 460, 429, 398, |
| 367, 336, 305, 274, 243, 212, 181, 150, 119, 88, 57, 26, 492, 461, 430, |
| 399, 368, 337, 306, 275, 244, 213, 182, 151, 120, 89, 58, 27, 493, 462, |
| 431, 400, 369, 338, 307, 276, 245, 214, 183, 152, 121, 90, 59, 28, 494, |
| 463, 432, 401, 370, 339, 308, 277, 246, 215, 184, 153, 122, 91, 60, 29, |
| 495, 464, 433, 402, 371, 340, 309, 278, 247, 216, 185, 154, 123, 92, 61, |
| 30, 496, 465, 434, 403, 372, 341, 310, 279, 248, 217, 186, 155, 124, 93, |
| 62, 31, 497, 466, 435, 404, 373, 342, 311, 280, 249, 218, 187, 156, 125, |
| 94, 63, 498, 467, 436, 405, 374, 343, 312, 281, 250, 219, 188, 157, 126, |
| 95, 499, 468, 437, 406, 375, 344, 313, 282, 251, 220, 189, 158, 127, 500, |
| 469, 438, 407, 376, 345, 314, 283, 252, 221, 190, 159, 501, 470, 439, 408, |
| 377, 346, 315, 284, 253, 222, 191, 502, 471, 440, 409, 378, 347, 316, 285, |
| 254, 223, 503, 472, 441, 410, 379, 348, 317, 286, 255, 504, 473, 442, 411, |
| 380, 349, 318, 287, 505, 474, 443, 412, 381, 350, 319, 506, 475, 444, 413, |
| 382, 351, 507, 476, 445, 414, 383, 508, 477, 446, 415, 509, 478, 447, 510, |
| 479, 511}; |
| |
| constexpr uint16_t kDefaultScan32x32[1024] = { |
| 0, 1, 32, 64, 33, 2, 3, 34, 65, 96, 128, 97, 66, |
| 35, 4, 5, 36, 67, 98, 129, 160, 192, 161, 130, 99, 68, |
| 37, 6, 7, 38, 69, 100, 131, 162, 193, 224, 256, 225, 194, |
| 163, 132, 101, 70, 39, 8, 9, 40, 71, 102, 133, 164, 195, |
| 226, 257, 288, 320, 289, 258, 227, 196, 165, 134, 103, 72, 41, |
| 10, 11, 42, 73, 104, 135, 166, 197, 228, 259, 290, 321, 352, |
| 384, 353, 322, 291, 260, 229, 198, 167, 136, 105, 74, 43, 12, |
| 13, 44, 75, 106, 137, 168, 199, 230, 261, 292, 323, 354, 385, |
| 416, 448, 417, 386, 355, 324, 293, 262, 231, 200, 169, 138, 107, |
| 76, 45, 14, 15, 46, 77, 108, 139, 170, 201, 232, 263, 294, |
| 325, 356, 387, 418, 449, 480, 512, 481, 450, 419, 388, 357, 326, |
| 295, 264, 233, 202, 171, 140, 109, 78, 47, 16, 17, 48, 79, |
| 110, 141, 172, 203, 234, 265, 296, 327, 358, 389, 420, 451, 482, |
| 513, 544, 576, 545, 514, 483, 452, 421, 390, 359, 328, 297, 266, |
| 235, 204, 173, 142, 111, 80, 49, 18, 19, 50, 81, 112, 143, |
| 174, 205, 236, 267, 298, 329, 360, 391, 422, 453, 484, 515, 546, |
| 577, 608, 640, 609, 578, 547, 516, 485, 454, 423, 392, 361, 330, |
| 299, 268, 237, 206, 175, 144, 113, 82, 51, 20, 21, 52, 83, |
| 114, 145, 176, 207, 238, 269, 300, 331, 362, 393, 424, 455, 486, |
| 517, 548, 579, 610, 641, 672, 704, 673, 642, 611, 580, 549, 518, |
| 487, 456, 425, 394, 363, 332, 301, 270, 239, 208, 177, 146, 115, |
| 84, 53, 22, 23, 54, 85, 116, 147, 178, 209, 240, 271, 302, |
| 333, 364, 395, 426, 457, 488, 519, 550, 581, 612, 643, 674, 705, |
| 736, 768, 737, 706, 675, 644, 613, 582, 551, 520, 489, 458, 427, |
| 396, 365, 334, 303, 272, 241, 210, 179, 148, 117, 86, 55, 24, |
| 25, 56, 87, 118, 149, 180, 211, 242, 273, 304, 335, 366, 397, |
| 428, 459, 490, 521, 552, 583, 614, 645, 676, 707, 738, 769, 800, |
| 832, 801, 770, 739, 708, 677, 646, 615, 584, 553, 522, 491, 460, |
| 429, 398, 367, 336, 305, 274, 243, 212, 181, 150, 119, 88, 57, |
| 26, 27, 58, 89, 120, 151, 182, 213, 244, 275, 306, 337, 368, |
| 399, 430, 461, 492, 523, 554, 585, 616, 647, 678, 709, 740, 771, |
| 802, 833, 864, 896, 865, 834, 803, 772, 741, 710, 679, 648, 617, |
| 586, 555, 524, 493, 462, 431, 400, 369, 338, 307, 276, 245, 214, |
| 183, 152, 121, 90, 59, 28, 29, 60, 91, 122, 153, 184, 215, |
| 246, 277, 308, 339, 370, 401, 432, 463, 494, 525, 556, 587, 618, |
| 649, 680, 711, 742, 773, 804, 835, 866, 897, 928, 960, 929, 898, |
| 867, 836, 805, 774, 743, 712, 681, 650, 619, 588, 557, 526, 495, |
| 464, 433, 402, 371, 340, 309, 278, 247, 216, 185, 154, 123, 92, |
| 61, 30, 31, 62, 93, 124, 155, 186, 217, 248, 279, 310, 341, |
| 372, 403, 434, 465, 496, 527, 558, 589, 620, 651, 682, 713, 744, |
| 775, 806, 837, 868, 899, 930, 961, 992, 993, 962, 931, 900, 869, |
| 838, 807, 776, 745, 714, 683, 652, 621, 590, 559, 528, 497, 466, |
| 435, 404, 373, 342, 311, 280, 249, 218, 187, 156, 125, 94, 63, |
| 95, 126, 157, 188, 219, 250, 281, 312, 343, 374, 405, 436, 467, |
| 498, 529, 560, 591, 622, 653, 684, 715, 746, 777, 808, 839, 870, |
| 901, 932, 963, 994, 995, 964, 933, 902, 871, 840, 809, 778, 747, |
| 716, 685, 654, 623, 592, 561, 530, 499, 468, 437, 406, 375, 344, |
| 313, 282, 251, 220, 189, 158, 127, 159, 190, 221, 252, 283, 314, |
| 345, 376, 407, 438, 469, 500, 531, 562, 593, 624, 655, 686, 717, |
| 748, 779, 810, 841, 872, 903, 934, 965, 996, 997, 966, 935, 904, |
| 873, 842, 811, 780, 749, 718, 687, 656, 625, 594, 563, 532, 501, |
| 470, 439, 408, 377, 346, 315, 284, 253, 222, 191, 223, 254, 285, |
| 316, 347, 378, 409, 440, 471, 502, 533, 564, 595, 626, 657, 688, |
| 719, 750, 781, 812, 843, 874, 905, 936, 967, 998, 999, 968, 937, |
| 906, 875, 844, 813, 782, 751, 720, 689, 658, 627, 596, 565, 534, |
| 503, 472, 441, 410, 379, 348, 317, 286, 255, 287, 318, 349, 380, |
| 411, 442, 473, 504, 535, 566, 597, 628, 659, 690, 721, 752, 783, |
| 814, 845, 876, 907, 938, 969, 1000, 1001, 970, 939, 908, 877, 846, |
| 815, 784, 753, 722, 691, 660, 629, 598, 567, 536, 505, 474, 443, |
| 412, 381, 350, 319, 351, 382, 413, 444, 475, 506, 537, 568, 599, |
| 630, 661, 692, 723, 754, 785, 816, 847, 878, 909, 940, 971, 1002, |
| 1003, 972, 941, 910, 879, 848, 817, 786, 755, 724, 693, 662, 631, |
| 600, 569, 538, 507, 476, 445, 414, 383, 415, 446, 477, 508, 539, |
| 570, 601, 632, 663, 694, 725, 756, 787, 818, 849, 880, 911, 942, |
| 973, 1004, 1005, 974, 943, 912, 881, 850, 819, 788, 757, 726, 695, |
| 664, 633, 602, 571, 540, 509, 478, 447, 479, 510, 541, 572, 603, |
| 634, 665, 696, 727, 758, 789, 820, 851, 882, 913, 944, 975, 1006, |
| 1007, 976, 945, 914, 883, 852, 821, 790, 759, 728, 697, 666, 635, |
| 604, 573, 542, 511, 543, 574, 605, 636, 667, 698, 729, 760, 791, |
| 822, 853, 884, 915, 946, 977, 1008, 1009, 978, 947, 916, 885, 854, |
| 823, 792, 761, 730, 699, 668, 637, 606, 575, 607, 638, 669, 700, |
| 731, 762, 793, 824, 855, 886, 917, 948, 979, 1010, 1011, 980, 949, |
| 918, 887, 856, 825, 794, 763, 732, 701, 670, 639, 671, 702, 733, |
| 764, 795, 826, 857, 888, 919, 950, 981, 1012, 1013, 982, 951, 920, |
| 889, 858, 827, 796, 765, 734, 703, 735, 766, 797, 828, 859, 890, |
| 921, 952, 983, 1014, 1015, 984, 953, 922, 891, 860, 829, 798, 767, |
| 799, 830, 861, 892, 923, 954, 985, 1016, 1017, 986, 955, 924, 893, |
| 862, 831, 863, 894, 925, 956, 987, 1018, 1019, 988, 957, 926, 895, |
| 927, 958, 989, 1020, 1021, 990, 959, 991, 1022, 1023}; |
| |
| constexpr uint16_t kDefaultScan4x16[64] = { |
| 0, 1, 4, 2, 5, 8, 3, 6, 9, 12, 7, 10, 13, 16, 11, 14, |
| 17, 20, 15, 18, 21, 24, 19, 22, 25, 28, 23, 26, 29, 32, 27, 30, |
| 33, 36, 31, 34, 37, 40, 35, 38, 41, 44, 39, 42, 45, 48, 43, 46, |
| 49, 52, 47, 50, 53, 56, 51, 54, 57, 60, 55, 58, 61, 59, 62, 63}; |
| |
| constexpr uint16_t kColumnScan4x16[64] = { |
| 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, |
| 1, 5, 9, 13, 17, 21, 25, 29, 33, 37, 41, 45, 49, 53, 57, 61, |
| 2, 6, 10, 14, 18, 22, 26, 30, 34, 38, 42, 46, 50, 54, 58, 62, |
| 3, 7, 11, 15, 19, 23, 27, 31, 35, 39, 43, 47, 51, 55, 59, 63}; |
| |
| constexpr uint16_t kRowScan4x16[64] = { |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
| 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, |
| 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, |
| 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63}; |
| |
| constexpr uint16_t kDefaultScan16x4[64] = { |
| 0, 16, 1, 32, 17, 2, 48, 33, 18, 3, 49, 34, 19, 4, 50, 35, |
| 20, 5, 51, 36, 21, 6, 52, 37, 22, 7, 53, 38, 23, 8, 54, 39, |
| 24, 9, 55, 40, 25, 10, 56, 41, 26, 11, 57, 42, 27, 12, 58, 43, |
| 28, 13, 59, 44, 29, 14, 60, 45, 30, 15, 61, 46, 31, 62, 47, 63}; |
| |
| constexpr uint16_t kColumnScan16x4[64] = { |
| 0, 16, 32, 48, 1, 17, 33, 49, 2, 18, 34, 50, 3, 19, 35, 51, |
| 4, 20, 36, 52, 5, 21, 37, 53, 6, 22, 38, 54, 7, 23, 39, 55, |
| 8, 24, 40, 56, 9, 25, 41, 57, 10, 26, 42, 58, 11, 27, 43, 59, |
| 12, 28, 44, 60, 13, 29, 45, 61, 14, 30, 46, 62, 15, 31, 47, 63}; |
| |
| constexpr uint16_t kRowScan16x4[64] = { |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
| 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, |
| 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, |
| 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63}; |
| |
| constexpr uint16_t kDefaultScan8x32[256] = { |
| 0, 1, 8, 2, 9, 16, 3, 10, 17, 24, 4, 11, 18, 25, 32, |
| 5, 12, 19, 26, 33, 40, 6, 13, 20, 27, 34, 41, 48, 7, 14, |
| 21, 28, 35, 42, 49, 56, 15, 22, 29, 36, 43, 50, 57, 64, 23, |
| 30, 37, 44, 51, 58, 65, 72, 31, 38, 45, 52, 59, 66, 73, 80, |
| 39, 46, 53, 60, 67, 74, 81, 88, 47, 54, 61, 68, 75, 82, 89, |
| 96, 55, 62, 69, 76, 83, 90, 97, 104, 63, 70, 77, 84, 91, 98, |
| 105, 112, 71, 78, 85, 92, 99, 106, 113, 120, 79, 86, 93, 100, 107, |
| 114, 121, 128, 87, 94, 101, 108, 115, 122, 129, 136, 95, 102, 109, 116, |
| 123, 130, 137, 144, 103, 110, 117, 124, 131, 138, 145, 152, 111, 118, 125, |
| 132, 139, 146, 153, 160, 119, 126, 133, 140, 147, 154, 161, 168, 127, 134, |
| 141, 148, 155, 162, 169, 176, 135, 142, 149, 156, 163, 170, 177, 184, 143, |
| 150, 157, 164, 171, 178, 185, 192, 151, 158, 165, 172, 179, 186, 193, 200, |
| 159, 166, 173, 180, 187, 194, 201, 208, 167, 174, 181, 188, 195, 202, 209, |
| 216, 175, 182, 189, 196, 203, 210, 217, 224, 183, 190, 197, 204, 211, 218, |
| 225, 232, 191, 198, 205, 212, 219, 226, 233, 240, 199, 206, 213, 220, 227, |
| 234, 241, 248, 207, 214, 221, 228, 235, 242, 249, 215, 222, 229, 236, 243, |
| 250, 223, 230, 237, 244, 251, 231, 238, 245, 252, 239, 246, 253, 247, 254, |
| 255}; |
| |
| constexpr uint16_t kDefaultScan32x8[256] = { |
| 0, 32, 1, 64, 33, 2, 96, 65, 34, 3, 128, 97, 66, 35, 4, |
| 160, 129, 98, 67, 36, 5, 192, 161, 130, 99, 68, 37, 6, 224, 193, |
| 162, 131, 100, 69, 38, 7, 225, 194, 163, 132, 101, 70, 39, 8, 226, |
| 195, 164, 133, 102, 71, 40, 9, 227, 196, 165, 134, 103, 72, 41, 10, |
| 228, 197, 166, 135, 104, 73, 42, 11, 229, 198, 167, 136, 105, 74, 43, |
| 12, 230, 199, 168, 137, 106, 75, 44, 13, 231, 200, 169, 138, 107, 76, |
| 45, 14, 232, 201, 170, 139, 108, 77, 46, 15, 233, 202, 171, 140, 109, |
| 78, 47, 16, 234, 203, 172, 141, 110, 79, 48, 17, 235, 204, 173, 142, |
| 111, 80, 49, 18, 236, 205, 174, 143, 112, 81, 50, 19, 237, 206, 175, |
| 144, 113, 82, 51, 20, 238, 207, 176, 145, 114, 83, 52, 21, 239, 208, |
| 177, 146, 115, 84, 53, 22, 240, 209, 178, 147, 116, 85, 54, 23, 241, |
| 210, 179, 148, 117, 86, 55, 24, 242, 211, 180, 149, 118, 87, 56, 25, |
| 243, 212, 181, 150, 119, 88, 57, 26, 244, 213, 182, 151, 120, 89, 58, |
| 27, 245, 214, 183, 152, 121, 90, 59, 28, 246, 215, 184, 153, 122, 91, |
| 60, 29, 247, 216, 185, 154, 123, 92, 61, 30, 248, 217, 186, 155, 124, |
| 93, 62, 31, 249, 218, 187, 156, 125, 94, 63, 250, 219, 188, 157, 126, |
| 95, 251, 220, 189, 158, 127, 252, 221, 190, 159, 253, 222, 191, 254, 223, |
| 255}; |
| |
| // 5.11.41 (implemented as a simple look up of transform class and transform |
| // size). |
| const uint16_t* kScan[3][kNumTransformSizes] = { |
| // kTransformClass2D |
| {kDefaultScan4x4, kDefaultScan4x8, kDefaultScan4x16, kDefaultScan8x4, |
| kDefaultScan8x8, kDefaultScan8x16, kDefaultScan8x32, kDefaultScan16x4, |
| kDefaultScan16x8, kDefaultScan16x16, kDefaultScan16x32, kDefaultScan16x32, |
| kDefaultScan32x8, kDefaultScan32x16, kDefaultScan32x32, kDefaultScan32x32, |
| kDefaultScan32x16, kDefaultScan32x32, kDefaultScan32x32}, |
| // kTransformClassHorizontal |
| {kColumnScan4x4, kColumnScan4x8, kColumnScan4x16, kColumnScan8x4, |
| kColumnScan8x8, kColumnScan8x16, kColumnScan16x4, kColumnScan16x4, |
| kColumnScan16x8, kColumnScan16x16, kColumnScan16x4, kDefaultScan16x32, |
| kColumnScan16x4, kColumnScan16x4, kColumnScan16x4, kDefaultScan32x32, |
| kDefaultScan32x16, kDefaultScan32x32, kDefaultScan32x32}, |
| // kTransformClassVertical |
| {kRowScan4x4, kRowScan4x8, kRowScan4x16, kRowScan8x4, kRowScan8x8, |
| kRowScan8x16, kRowScan16x4, kRowScan16x4, kRowScan16x8, kRowScan16x16, |
| kRowScan16x4, kDefaultScan16x32, kRowScan16x4, kRowScan16x4, kRowScan16x4, |
| kDefaultScan32x32, kDefaultScan32x16, kDefaultScan32x32, |
| kDefaultScan32x32}}; |
