1 /*
2 * Copyright (c) 2017, Alliance for Open Media. All rights reserved
3 *
4 * This source code is subject to the terms of the BSD 2 Clause License and
5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6 * was not distributed with this source code in the LICENSE file, you can
7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8 * Media Patent License 1.0 was not distributed with this source code in the
9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10 */
11
12 #include "config/aom_dsp_rtcd.h"
13
14 #include "av1/common/av1_txfm.h"
15
16 // av1_cospi_arr[i][j] = (int)round(cos(M_PI*j/128) * (1<<(cos_bit_min+i)));
17 const int32_t av1_cospi_arr_data[7][64] = {
18 { 1024, 1024, 1023, 1021, 1019, 1016, 1013, 1009, 1004, 999, 993, 987, 980,
19 972, 964, 955, 946, 936, 926, 915, 903, 891, 878, 865, 851, 837,
20 822, 807, 792, 775, 759, 742, 724, 706, 688, 669, 650, 630, 610,
21 590, 569, 548, 526, 505, 483, 460, 438, 415, 392, 369, 345, 321,
22 297, 273, 249, 224, 200, 175, 150, 125, 100, 75, 50, 25 },
23 { 2048, 2047, 2046, 2042, 2038, 2033, 2026, 2018, 2009, 1998, 1987,
24 1974, 1960, 1945, 1928, 1911, 1892, 1872, 1851, 1829, 1806, 1782,
25 1757, 1730, 1703, 1674, 1645, 1615, 1583, 1551, 1517, 1483, 1448,
26 1412, 1375, 1338, 1299, 1260, 1220, 1179, 1138, 1096, 1053, 1009,
27 965, 921, 876, 830, 784, 737, 690, 642, 595, 546, 498,
28 449, 400, 350, 301, 251, 201, 151, 100, 50 },
29 { 4096, 4095, 4091, 4085, 4076, 4065, 4052, 4036, 4017, 3996, 3973,
30 3948, 3920, 3889, 3857, 3822, 3784, 3745, 3703, 3659, 3612, 3564,
31 3513, 3461, 3406, 3349, 3290, 3229, 3166, 3102, 3035, 2967, 2896,
32 2824, 2751, 2675, 2598, 2520, 2440, 2359, 2276, 2191, 2106, 2019,
33 1931, 1842, 1751, 1660, 1567, 1474, 1380, 1285, 1189, 1092, 995,
34 897, 799, 700, 601, 501, 401, 301, 201, 101 },
35 { 8192, 8190, 8182, 8170, 8153, 8130, 8103, 8071, 8035, 7993, 7946,
36 7895, 7839, 7779, 7713, 7643, 7568, 7489, 7405, 7317, 7225, 7128,
37 7027, 6921, 6811, 6698, 6580, 6458, 6333, 6203, 6070, 5933, 5793,
38 5649, 5501, 5351, 5197, 5040, 4880, 4717, 4551, 4383, 4212, 4038,
39 3862, 3683, 3503, 3320, 3135, 2948, 2760, 2570, 2378, 2185, 1990,
40 1795, 1598, 1401, 1202, 1003, 803, 603, 402, 201 },
41 { 16384, 16379, 16364, 16340, 16305, 16261, 16207, 16143, 16069, 15986, 15893,
42 15791, 15679, 15557, 15426, 15286, 15137, 14978, 14811, 14635, 14449, 14256,
43 14053, 13842, 13623, 13395, 13160, 12916, 12665, 12406, 12140, 11866, 11585,
44 11297, 11003, 10702, 10394, 10080, 9760, 9434, 9102, 8765, 8423, 8076,
45 7723, 7366, 7005, 6639, 6270, 5897, 5520, 5139, 4756, 4370, 3981,
46 3590, 3196, 2801, 2404, 2006, 1606, 1205, 804, 402 },
47 { 32768, 32758, 32729, 32679, 32610, 32522, 32413, 32286, 32138, 31972, 31786,
48 31581, 31357, 31114, 30853, 30572, 30274, 29957, 29622, 29269, 28899, 28511,
49 28106, 27684, 27246, 26791, 26320, 25833, 25330, 24812, 24279, 23732, 23170,
50 22595, 22006, 21403, 20788, 20160, 19520, 18868, 18205, 17531, 16846, 16151,
51 15447, 14733, 14010, 13279, 12540, 11793, 11039, 10279, 9512, 8740, 7962,
52 7180, 6393, 5602, 4808, 4011, 3212, 2411, 1608, 804 },
53 { 65536, 65516, 65457, 65358, 65220, 65043, 64827, 64571, 64277, 63944, 63572,
54 63162, 62714, 62228, 61705, 61145, 60547, 59914, 59244, 58538, 57798, 57022,
55 56212, 55368, 54491, 53581, 52639, 51665, 50660, 49624, 48559, 47464, 46341,
56 45190, 44011, 42806, 41576, 40320, 39040, 37736, 36410, 35062, 33692, 32303,
57 30893, 29466, 28020, 26558, 25080, 23586, 22078, 20557, 19024, 17479, 15924,
58 14359, 12785, 11204, 9616, 8022, 6424, 4821, 3216, 1608 }
59 };
60
61 // av1_sinpi_arr_data[i][j] = (int)round((sqrt(2) * sin(j*Pi/9) * 2 / 3) * (1
62 // << (cos_bit_min + i))) modified so that elements j=1,2 sum to element j=4.
63 const int32_t av1_sinpi_arr_data[7][5] = {
64 { 0, 330, 621, 836, 951 }, { 0, 660, 1241, 1672, 1901 },
65 { 0, 1321, 2482, 3344, 3803 }, { 0, 2642, 4964, 6689, 7606 },
66 { 0, 5283, 9929, 13377, 15212 }, { 0, 10566, 19858, 26755, 30424 },
67 { 0, 21133, 39716, 53510, 60849 }
68 };
69
av1_round_shift_array_c(int32_t * arr,int size,int bit)70 void av1_round_shift_array_c(int32_t *arr, int size, int bit) {
71 int i;
72 if (bit == 0) {
73 return;
74 } else {
75 if (bit > 0) {
76 for (i = 0; i < size; i++) {
77 arr[i] = round_shift(arr[i], bit);
78 }
79 } else {
80 for (i = 0; i < size; i++) {
81 arr[i] = (int32_t)clamp64(((int64_t)1 << (-bit)) * arr[i], INT32_MIN,
82 INT32_MAX);
83 }
84 }
85 }
86 }
87
88 const TXFM_TYPE av1_txfm_type_ls[5][TX_TYPES_1D] = {
89 { TXFM_TYPE_DCT4, TXFM_TYPE_ADST4, TXFM_TYPE_ADST4, TXFM_TYPE_IDENTITY4 },
90 { TXFM_TYPE_DCT8, TXFM_TYPE_ADST8, TXFM_TYPE_ADST8, TXFM_TYPE_IDENTITY8 },
91 { TXFM_TYPE_DCT16, TXFM_TYPE_ADST16, TXFM_TYPE_ADST16, TXFM_TYPE_IDENTITY16 },
92 { TXFM_TYPE_DCT32, TXFM_TYPE_INVALID, TXFM_TYPE_INVALID,
93 TXFM_TYPE_IDENTITY32 },
94 { TXFM_TYPE_DCT64, TXFM_TYPE_INVALID, TXFM_TYPE_INVALID, TXFM_TYPE_INVALID }
95 };
96
97 const int8_t av1_txfm_stage_num_list[TXFM_TYPES] = {
98 4, // TXFM_TYPE_DCT4
99 6, // TXFM_TYPE_DCT8
100 8, // TXFM_TYPE_DCT16
101 10, // TXFM_TYPE_DCT32
102 12, // TXFM_TYPE_DCT64
103 7, // TXFM_TYPE_ADST4
104 8, // TXFM_TYPE_ADST8
105 10, // TXFM_TYPE_ADST16
106 1, // TXFM_TYPE_IDENTITY4
107 1, // TXFM_TYPE_IDENTITY8
108 1, // TXFM_TYPE_IDENTITY16
109 1, // TXFM_TYPE_IDENTITY32
110 };
111
av1_range_check_buf(int32_t stage,const int32_t * input,const int32_t * buf,int32_t size,int8_t bit)112 void av1_range_check_buf(int32_t stage, const int32_t *input,
113 const int32_t *buf, int32_t size, int8_t bit) {
114 #if CONFIG_COEFFICIENT_RANGE_CHECKING
115 const int64_t max_value = (1LL << (bit - 1)) - 1;
116 const int64_t min_value = -(1LL << (bit - 1));
117
118 int in_range = 1;
119
120 for (int i = 0; i < size; ++i) {
121 if (buf[i] < min_value || buf[i] > max_value) {
122 in_range = 0;
123 }
124 }
125
126 if (!in_range) {
127 fprintf(stderr, "Error: coeffs contain out-of-range values\n");
128 fprintf(stderr, "size: %d\n", size);
129 fprintf(stderr, "stage: %d\n", stage);
130 fprintf(stderr, "allowed range: [%" PRId64 ";%" PRId64 "]\n", min_value,
131 max_value);
132
133 fprintf(stderr, "coeffs: ");
134
135 fprintf(stderr, "[");
136 for (int j = 0; j < size; j++) {
137 if (j > 0) fprintf(stderr, ", ");
138 fprintf(stderr, "%d", input[j]);
139 }
140 fprintf(stderr, "]\n");
141
142 fprintf(stderr, " buf: ");
143
144 fprintf(stderr, "[");
145 for (int j = 0; j < size; j++) {
146 if (j > 0) fprintf(stderr, ", ");
147 fprintf(stderr, "%d", buf[j]);
148 }
149 fprintf(stderr, "]\n\n");
150 }
151
152 assert(in_range);
153 #else
154 (void)stage;
155 (void)input;
156 (void)buf;
157 (void)size;
158 (void)bit;
159 #endif
160 }
161