ref: 917cb4e4f13a3ad14bc9a6e0e411a058233b26d8
dir: /src/scan.c/
/*
* Copyright © 2018, VideoLAN and dav1d authors
* Copyright © 2018, Two Orioles, LLC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "common/attributes.h"
#include "src/scan.h"
static const uint16_t ALIGN(av1_default_scan_4x4[], 32) = {
0, 4, 1, 2,
5, 8, 12, 9,
6, 3, 7, 10,
13, 14, 11, 15,
};
static const uint16_t ALIGN(av1_mrow_scan_4x4[], 32) = {
0, 4, 8, 12,
1, 5, 9, 13,
2, 6, 10, 14,
3, 7, 11, 15,
};
static const uint16_t ALIGN(av1_default_scan_4x8[], 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,
};
static const uint16_t ALIGN(av1_mrow_scan_4x8[], 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,
};
static const uint16_t ALIGN(av1_default_scan_4x16[], 32) = {
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,
};
static const uint16_t ALIGN(av1_mrow_scan_4x16[], 32) = {
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,
};
static const uint16_t ALIGN(av1_default_scan_8x4[], 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,
};
static const uint16_t ALIGN(av1_mrow_scan_8x4[], 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,
};
static const uint16_t ALIGN(av1_default_scan_8x8[], 32) = {
0, 8, 1, 2, 9, 16, 24, 17,
10, 3, 4, 11, 18, 25, 32, 40,
33, 26, 19, 12, 5, 6, 13, 20,
27, 34, 41, 48, 56, 49, 42, 35,
28, 21, 14, 7, 15, 22, 29, 36,
43, 50, 57, 58, 51, 44, 37, 30,
23, 31, 38, 45, 52, 59, 60, 53,
46, 39, 47, 54, 61, 62, 55, 63,
};
static const uint16_t ALIGN(av1_mrow_scan_8x8[], 32) = {
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,
};
static const uint16_t ALIGN(av1_default_scan_8x16[], 32) = {
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,
};
static const uint16_t ALIGN(av1_mrow_scan_8x16[], 32) = {
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,
};
static const uint16_t ALIGN(av1_default_scan_8x32[], 32) = {
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,
};
static const uint16_t ALIGN(av1_default_scan_16x4[], 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, 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,
};
static const uint16_t ALIGN(av1_mrow_scan_16x4[], 32) = {
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,
};
static const uint16_t ALIGN(av1_default_scan_16x8[], 32) = {
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,
};
static const uint16_t ALIGN(av1_mrow_scan_16x8[], 32) = {
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,
};
static const uint16_t ALIGN(av1_default_scan_16x16[], 32) = {
0, 16, 1, 2, 17, 32, 48, 33, 18, 3, 4, 19, 34, 49, 64, 80,
65, 50, 35, 20, 5, 6, 21, 36, 51, 66, 81, 96, 112, 97, 82, 67,
52, 37, 22, 7, 8, 23, 38, 53, 68, 83, 98, 113, 128, 144, 129, 114,
99, 84, 69, 54, 39, 24, 9, 10, 25, 40, 55, 70, 85, 100, 115, 130,
145, 160, 176, 161, 146, 131, 116, 101, 86, 71, 56, 41, 26, 11, 12, 27,
42, 57, 72, 87, 102, 117, 132, 147, 162, 177, 192, 208, 193, 178, 163, 148,
133, 118, 103, 88, 73, 58, 43, 28, 13, 14, 29, 44, 59, 74, 89, 104,
119, 134, 149, 164, 179, 194, 209, 224, 240, 225, 210, 195, 180, 165, 150, 135,
120, 105, 90, 75, 60, 45, 30, 15, 31, 46, 61, 76, 91, 106, 121, 136,
151, 166, 181, 196, 211, 226, 241, 242, 227, 212, 197, 182, 167, 152, 137, 122,
107, 92, 77, 62, 47, 63, 78, 93, 108, 123, 138, 153, 168, 183, 198, 213,
228, 243, 244, 229, 214, 199, 184, 169, 154, 139, 124, 109, 94, 79, 95, 110,
125, 140, 155, 170, 185, 200, 215, 230, 245, 246, 231, 216, 201, 186, 171, 156,
141, 126, 111, 127, 142, 157, 172, 187, 202, 217, 232, 247, 248, 233, 218, 203,
188, 173, 158, 143, 159, 174, 189, 204, 219, 234, 249, 250, 235, 220, 205, 190,
175, 191, 206, 221, 236, 251, 252, 237, 222, 207, 223, 238, 253, 254, 239, 255,
};
static const uint16_t ALIGN(av1_mrow_scan_16x16[], 32) = {
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,
};
static const uint16_t ALIGN(av1_mcol_scan_16x16[], 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,
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,
};
static const uint16_t ALIGN(av1_default_scan_16x32[], 32) = {
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,
};
static const uint16_t ALIGN(av1_default_scan_32x8[], 32) = {
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,
};
static const uint16_t ALIGN(av1_default_scan_32x16[], 32) = {
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,
};
static const uint16_t ALIGN(av1_default_scan_32x32[], 32) = {
0, 32, 1, 2, 33, 64, 96, 65, 34, 3, 4, 35, 66, 97, 128, 160, 129, 98, 67, 36, 5, 6, 37, 68, 99, 130, 161, 192, 224, 193, 162, 131,
100, 69, 38, 7, 8, 39, 70, 101, 132, 163, 194, 225, 256, 288, 257, 226, 195, 164, 133, 102, 71, 40, 9, 10, 41, 72, 103, 134, 165, 196, 227, 258,
289, 320, 352, 321, 290, 259, 228, 197, 166, 135, 104, 73, 42, 11, 12, 43, 74, 105, 136, 167, 198, 229, 260, 291, 322, 353, 384, 416, 385, 354, 323, 292,
261, 230, 199, 168, 137, 106, 75, 44, 13, 14, 45, 76, 107, 138, 169, 200, 231, 262, 293, 324, 355, 386, 417, 448, 480, 449, 418, 387, 356, 325, 294, 263,
232, 201, 170, 139, 108, 77, 46, 15, 16, 47, 78, 109, 140, 171, 202, 233, 264, 295, 326, 357, 388, 419, 450, 481, 512, 544, 513, 482, 451, 420, 389, 358,
327, 296, 265, 234, 203, 172, 141, 110, 79, 48, 17, 18, 49, 80, 111, 142, 173, 204, 235, 266, 297, 328, 359, 390, 421, 452, 483, 514, 545, 576, 608, 577,
546, 515, 484, 453, 422, 391, 360, 329, 298, 267, 236, 205, 174, 143, 112, 81, 50, 19, 20, 51, 82, 113, 144, 175, 206, 237, 268, 299, 330, 361, 392, 423,
454, 485, 516, 547, 578, 609, 640, 672, 641, 610, 579, 548, 517, 486, 455, 424, 393, 362, 331, 300, 269, 238, 207, 176, 145, 114, 83, 52, 21, 22, 53, 84,
115, 146, 177, 208, 239, 270, 301, 332, 363, 394, 425, 456, 487, 518, 549, 580, 611, 642, 673, 704, 736, 705, 674, 643, 612, 581, 550, 519, 488, 457, 426, 395,
364, 333, 302, 271, 240, 209, 178, 147, 116, 85, 54, 23, 24, 55, 86, 117, 148, 179, 210, 241, 272, 303, 334, 365, 396, 427, 458, 489, 520, 551, 582, 613,
644, 675, 706, 737, 768, 800, 769, 738, 707, 676, 645, 614, 583, 552, 521, 490, 459, 428, 397, 366, 335, 304, 273, 242, 211, 180, 149, 118, 87, 56, 25, 26,
57, 88, 119, 150, 181, 212, 243, 274, 305, 336, 367, 398, 429, 460, 491, 522, 553, 584, 615, 646, 677, 708, 739, 770, 801, 832, 864, 833, 802, 771, 740, 709,
678, 647, 616, 585, 554, 523, 492, 461, 430, 399, 368, 337, 306, 275, 244, 213, 182, 151, 120, 89, 58, 27, 28, 59, 90, 121, 152, 183, 214, 245, 276, 307,
338, 369, 400, 431, 462, 493, 524, 555, 586, 617, 648, 679, 710, 741, 772, 803, 834, 865, 896, 928, 897, 866, 835, 804, 773, 742, 711, 680, 649, 618, 587, 556,
525, 494, 463, 432, 401, 370, 339, 308, 277, 246, 215, 184, 153, 122, 91, 60, 29, 30, 61, 92, 123, 154, 185, 216, 247, 278, 309, 340, 371, 402, 433, 464,
495, 526, 557, 588, 619, 650, 681, 712, 743, 774, 805, 836, 867, 898, 929, 960, 992, 961, 930, 899, 868, 837, 806, 775, 744, 713, 682, 651, 620, 589, 558, 527,
496, 465, 434, 403, 372, 341, 310, 279, 248, 217, 186, 155, 124, 93, 62, 31, 63, 94, 125, 156, 187, 218, 249, 280, 311, 342, 373, 404, 435, 466, 497, 528,
559, 590, 621, 652, 683, 714, 745, 776, 807, 838, 869, 900, 931, 962, 993, 994, 963, 932, 901, 870, 839, 808, 777, 746, 715, 684, 653, 622, 591, 560, 529, 498,
467, 436, 405, 374, 343, 312, 281, 250, 219, 188, 157, 126, 95, 127, 158, 189, 220, 251, 282, 313, 344, 375, 406, 437, 468, 499, 530, 561, 592, 623, 654, 685,
716, 747, 778, 809, 840, 871, 902, 933, 964, 995, 996, 965, 934, 903, 872, 841, 810, 779, 748, 717, 686, 655, 624, 593, 562, 531, 500, 469, 438, 407, 376, 345,
314, 283, 252, 221, 190, 159, 191, 222, 253, 284, 315, 346, 377, 408, 439, 470, 501, 532, 563, 594, 625, 656, 687, 718, 749, 780, 811, 842, 873, 904, 935, 966,
997, 998, 967, 936, 905, 874, 843, 812, 781, 750, 719, 688, 657, 626, 595, 564, 533, 502, 471, 440, 409, 378, 347, 316, 285, 254, 223, 255, 286, 317, 348, 379,
410, 441, 472, 503, 534, 565, 596, 627, 658, 689, 720, 751, 782, 813, 844, 875, 906, 937, 968, 999, 1000, 969, 938, 907, 876, 845, 814, 783, 752, 721, 690, 659,
628, 597, 566, 535, 504, 473, 442, 411, 380, 349, 318, 287, 319, 350, 381, 412, 443, 474, 505, 536, 567, 598, 629, 660, 691, 722, 753, 784, 815, 846, 877, 908,
939, 970, 1001, 1002, 971, 940, 909, 878, 847, 816, 785, 754, 723, 692, 661, 630, 599, 568, 537, 506, 475, 444, 413, 382, 351, 383, 414, 445, 476, 507, 538, 569,
600, 631, 662, 693, 724, 755, 786, 817, 848, 879, 910, 941, 972, 1003, 1004, 973, 942, 911, 880, 849, 818, 787, 756, 725, 694, 663, 632, 601, 570, 539, 508, 477,
446, 415, 447, 478, 509, 540, 571, 602, 633, 664, 695, 726, 757, 788, 819, 850, 881, 912, 943, 974, 1005, 1006, 975, 944, 913, 882, 851, 820, 789, 758, 727, 696,
665, 634, 603, 572, 541, 510, 479, 511, 542, 573, 604, 635, 666, 697, 728, 759, 790, 821, 852, 883, 914, 945, 976, 1007, 1008, 977, 946, 915, 884, 853, 822, 791,
760, 729, 698, 667, 636, 605, 574, 543, 575, 606, 637, 668, 699, 730, 761, 792, 823, 854, 885, 916, 947, 978, 1009, 1010, 979, 948, 917, 886, 855, 824, 793, 762,
731, 700, 669, 638, 607, 639, 670, 701, 732, 763, 794, 825, 856, 887, 918, 949, 980, 1011, 1012, 981, 950, 919, 888, 857, 826, 795, 764, 733, 702, 671, 703, 734,
765, 796, 827, 858, 889, 920, 951, 982, 1013, 1014, 983, 952, 921, 890, 859, 828, 797, 766, 735, 767, 798, 829, 860, 891, 922, 953, 984, 1015, 1016, 985, 954, 923,
892, 861, 830, 799, 831, 862, 893, 924, 955, 986, 1017, 1018, 987, 956, 925, 894, 863, 895, 926, 957, 988, 1019, 1020, 989, 958, 927, 959, 990, 1021, 1022, 991, 1023,
};
const uint16_t *const dav1d_scans[N_RECT_TX_SIZES][3] = {
[TX_4X4] = {
[TX_CLASS_2D] = av1_default_scan_4x4,
[TX_CLASS_V] = av1_mrow_scan_4x4,
[TX_CLASS_H] = av1_mcol_scan_16x16,
}, [TX_8X8] = {
[TX_CLASS_2D] = av1_default_scan_8x8,
[TX_CLASS_V] = av1_mrow_scan_8x8,
[TX_CLASS_H] = av1_mcol_scan_16x16,
}, [TX_16X16] = {
[TX_CLASS_2D] = av1_default_scan_16x16,
[TX_CLASS_V] = av1_mrow_scan_16x16,
[TX_CLASS_H] = av1_mcol_scan_16x16,
}, [TX_32X32] = {
[TX_CLASS_2D] = av1_default_scan_32x32,
}, [TX_64X64] = {
[TX_CLASS_2D] = av1_default_scan_32x32,
}, [RTX_4X8] = {
[TX_CLASS_2D] = av1_default_scan_4x8,
[TX_CLASS_V] = av1_mrow_scan_4x8,
[TX_CLASS_H] = av1_mcol_scan_16x16,
}, [RTX_8X4] = {
[TX_CLASS_2D] = av1_default_scan_8x4,
[TX_CLASS_V] = av1_mrow_scan_8x4,
[TX_CLASS_H] = av1_mcol_scan_16x16,
}, [RTX_8X16] = {
[TX_CLASS_2D] = av1_default_scan_8x16,
[TX_CLASS_V] = av1_mrow_scan_8x16,
[TX_CLASS_H] = av1_mcol_scan_16x16,
}, [RTX_16X8] = {
[TX_CLASS_2D] = av1_default_scan_16x8,
[TX_CLASS_V] = av1_mrow_scan_16x8,
[TX_CLASS_H] = av1_mcol_scan_16x16,
}, [RTX_16X32] = {
[TX_CLASS_2D] = av1_default_scan_16x32,
}, [RTX_32X16] = {
[TX_CLASS_2D] = av1_default_scan_32x16,
}, [RTX_32X64] = {
[TX_CLASS_2D] = av1_default_scan_32x32,
}, [RTX_64X32] = {
[TX_CLASS_2D] = av1_default_scan_32x32,
}, [RTX_4X16] = {
[TX_CLASS_2D] = av1_default_scan_4x16,
[TX_CLASS_V] = av1_mrow_scan_4x16,
[TX_CLASS_H] = av1_mcol_scan_16x16,
}, [RTX_16X4] = {
[TX_CLASS_2D] = av1_default_scan_16x4,
[TX_CLASS_V] = av1_mrow_scan_16x4,
[TX_CLASS_H] = av1_mcol_scan_16x16,
}, [RTX_8X32] = {
[TX_CLASS_2D] = av1_default_scan_8x32,
}, [RTX_32X8] = {
[TX_CLASS_2D] = av1_default_scan_32x8,
}, [RTX_16X64] = {
[TX_CLASS_2D] = av1_default_scan_16x32,
}, [RTX_64X16] = {
[TX_CLASS_2D] = av1_default_scan_32x16,
},
};