| /* |
| * Copyright (c) 2017, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 2 Clause License and |
| * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License |
| * was not distributed with this source code in the LICENSE file, you can |
| * obtain it at www.aomedia.org/license/software. If the Alliance for Open |
| * Media Patent License 1.0 was not distributed with this source code in the |
| * PATENTS file, you can obtain it at www.aomedia.org/license/patent. |
| */ |
| |
| #include "config/aom_dsp_rtcd.h" |
| #include "config/av1_rtcd.h" |
| |
| #include "av1/common/av1_txfm.h" |
| |
| // av1_cospi_arr[i][j] = (int)round(cos(PI*j/128) * (1<<(cos_bit_min+i))); |
| const int32_t av1_cospi_arr_data[4][64] = { |
| { 1024, 1024, 1023, 1021, 1019, 1016, 1013, 1009, 1004, 999, 993, 987, 980, |
| 972, 964, 955, 946, 936, 926, 915, 903, 891, 878, 865, 851, 837, |
| 822, 807, 792, 775, 759, 742, 724, 706, 688, 669, 650, 630, 610, |
| 590, 569, 548, 526, 505, 483, 460, 438, 415, 392, 369, 345, 321, |
| 297, 273, 249, 224, 200, 175, 150, 125, 100, 75, 50, 25 }, |
| { 2048, 2047, 2046, 2042, 2038, 2033, 2026, 2018, 2009, 1998, 1987, |
| 1974, 1960, 1945, 1928, 1911, 1892, 1872, 1851, 1829, 1806, 1782, |
| 1757, 1730, 1703, 1674, 1645, 1615, 1583, 1551, 1517, 1483, 1448, |
| 1412, 1375, 1338, 1299, 1260, 1220, 1179, 1138, 1096, 1053, 1009, |
| 965, 921, 876, 830, 784, 737, 690, 642, 595, 546, 498, |
| 449, 400, 350, 301, 251, 201, 151, 100, 50 }, |
| { 4096, 4095, 4091, 4085, 4076, 4065, 4052, 4036, 4017, 3996, 3973, |
| 3948, 3920, 3889, 3857, 3822, 3784, 3745, 3703, 3659, 3612, 3564, |
| 3513, 3461, 3406, 3349, 3290, 3229, 3166, 3102, 3035, 2967, 2896, |
| 2824, 2751, 2675, 2598, 2520, 2440, 2359, 2276, 2191, 2106, 2019, |
| 1931, 1842, 1751, 1660, 1567, 1474, 1380, 1285, 1189, 1092, 995, |
| 897, 799, 700, 601, 501, 401, 301, 201, 101 }, |
| { 8192, 8190, 8182, 8170, 8153, 8130, 8103, 8071, 8035, 7993, 7946, |
| 7895, 7839, 7779, 7713, 7643, 7568, 7489, 7405, 7317, 7225, 7128, |
| 7027, 6921, 6811, 6698, 6580, 6458, 6333, 6203, 6070, 5933, 5793, |
| 5649, 5501, 5351, 5197, 5040, 4880, 4717, 4551, 4383, 4212, 4038, |
| 3862, 3683, 3503, 3320, 3135, 2948, 2760, 2570, 2378, 2185, 1990, |
| 1795, 1598, 1401, 1202, 1003, 803, 603, 402, 201 } |
| }; |
| |
| // av1_sinpi_arr_data[i][j] = (int)round((sqrt(2) * sin(j*Pi/9) * 2 / 3) * (1 |
| // << (cos_bit_min + i))) modified so that elements j=1,2 sum to element j=4. |
| const int32_t av1_sinpi_arr_data[4][5] = { { 0, 330, 621, 836, 951 }, |
| { 0, 660, 1241, 1672, 1901 }, |
| { 0, 1321, 2482, 3344, 3803 }, |
| { 0, 2642, 4964, 6689, 7606 } }; |
| |
| // The reduced bit-width arrays are only used in the Arm Neon implementations |
| // in av1_fwd_txfm2d_neon.c for now. |
| #if HAVE_NEON |
| // Constants are stored in groups of four, where symmetrical constants in the |
| // cospi array are stored adjacent in memory, followed immediately by the same |
| // constants but negated, i.e.: |
| // f(i,j) = (int)round(cos(PI*j/128) * (1<<(cos_bit_min+i))) << (3-i) |
| // av1_cospi_arr_q13_data[i][4*j+0] = f(i,j) |
| // av1_cospi_arr_q13_data[i][4*j+1] = f(i,63-j) |
| // av1_cospi_arr_q13_data[i][4*j+2] = -av1_cospi_arr_q13_data[i][4*j+0] |
| // av1_cospi_arr_q13_data[i][4*j+3] = -av1_cospi_arr_q13_data[i][4*j+1] |
| // See also: https://en.wikipedia.org/wiki/Q_(number_format) |
| const int16_t |
| av1_cospi_arr_q13_data[4][132] = { |
| { 8192, 0, -8192, 0, 8192, 200, -8192, -200, 8184, 400, |
| -8184, -400, 8168, 600, -8168, -600, 8152, 800, -8152, -800, |
| 8128, 1000, -8128, -1000, 8104, 1200, -8104, -1200, 8072, 1400, |
| -8072, -1400, 8032, 1600, -8032, -1600, 7992, 1792, -7992, -1792, |
| 7944, 1992, -7944, -1992, 7896, 2184, -7896, -2184, 7840, 2376, |
| -7840, -2376, 7776, 2568, -7776, -2568, 7712, 2760, -7712, -2760, |
| 7640, 2952, -7640, -2952, 7568, 3136, -7568, -3136, 7488, 3320, |
| -7488, -3320, 7408, 3504, -7408, -3504, 7320, 3680, -7320, -3680, |
| 7224, 3864, -7224, -3864, 7128, 4040, -7128, -4040, 7024, 4208, |
| -7024, -4208, 6920, 4384, -6920, -4384, 6808, 4552, -6808, -4552, |
| 6696, 4720, -6696, -4720, 6576, 4880, -6576, -4880, 6456, 5040, |
| -6456, -5040, 6336, 5200, -6336, -5200, 6200, 5352, -6200, -5352, |
| 6072, 5504, -6072, -5504, 5936, 5648, -5936, -5648, 5792, 5792, |
| -5792, -5792 }, |
| { 8192, 0, -8192, 0, 8188, 200, -8188, -200, 8184, 400, |
| -8184, -400, 8168, 604, -8168, -604, 8152, 804, -8152, -804, |
| 8132, 1004, -8132, -1004, 8104, 1204, -8104, -1204, 8072, 1400, |
| -8072, -1400, 8036, 1600, -8036, -1600, 7992, 1796, -7992, -1796, |
| 7948, 1992, -7948, -1992, 7896, 2184, -7896, -2184, 7840, 2380, |
| -7840, -2380, 7780, 2568, -7780, -2568, 7712, 2760, -7712, -2760, |
| 7644, 2948, -7644, -2948, 7568, 3136, -7568, -3136, 7488, 3320, |
| -7488, -3320, 7404, 3504, -7404, -3504, 7316, 3684, -7316, -3684, |
| 7224, 3860, -7224, -3860, 7128, 4036, -7128, -4036, 7028, 4212, |
| -7028, -4212, 6920, 4384, -6920, -4384, 6812, 4552, -6812, -4552, |
| 6696, 4716, -6696, -4716, 6580, 4880, -6580, -4880, 6460, 5040, |
| -6460, -5040, 6332, 5196, -6332, -5196, 6204, 5352, -6204, -5352, |
| 6068, 5500, -6068, -5500, 5932, 5648, -5932, -5648, 5792, 5792, |
| -5792, -5792 }, |
| { 8192, 0, -8192, 0, 8190, 202, -8190, -202, 8182, 402, |
| -8182, -402, 8170, 602, -8170, -602, 8152, 802, -8152, -802, |
| 8130, 1002, -8130, -1002, 8104, 1202, -8104, -1202, 8072, 1400, |
| -8072, -1400, 8034, 1598, -8034, -1598, 7992, 1794, -7992, -1794, |
| 7946, 1990, -7946, -1990, 7896, 2184, -7896, -2184, 7840, 2378, |
| -7840, -2378, 7778, 2570, -7778, -2570, 7714, 2760, -7714, -2760, |
| 7644, 2948, -7644, -2948, 7568, 3134, -7568, -3134, 7490, 3320, |
| -7490, -3320, 7406, 3502, -7406, -3502, 7318, 3684, -7318, -3684, |
| 7224, 3862, -7224, -3862, 7128, 4038, -7128, -4038, 7026, 4212, |
| -7026, -4212, 6922, 4382, -6922, -4382, 6812, 4552, -6812, -4552, |
| 6698, 4718, -6698, -4718, 6580, 4880, -6580, -4880, 6458, 5040, |
| -6458, -5040, 6332, 5196, -6332, -5196, 6204, 5350, -6204, -5350, |
| 6070, 5502, -6070, -5502, 5934, 5648, -5934, -5648, 5792, 5792, |
| -5792, -5792 }, |
| { 8192, 0, -8192, 0, 8190, 201, -8190, -201, 8182, 402, |
| -8182, -402, 8170, 603, -8170, -603, 8153, 803, -8153, -803, |
| 8130, 1003, -8130, -1003, 8103, 1202, -8103, -1202, 8071, 1401, |
| -8071, -1401, 8035, 1598, -8035, -1598, 7993, 1795, -7993, -1795, |
| 7946, 1990, -7946, -1990, 7895, 2185, -7895, -2185, 7839, 2378, |
| -7839, -2378, 7779, 2570, -7779, -2570, 7713, 2760, -7713, -2760, |
| 7643, 2948, -7643, -2948, 7568, 3135, -7568, -3135, 7489, 3320, |
| -7489, -3320, 7405, 3503, -7405, -3503, 7317, 3683, -7317, -3683, |
| 7225, 3862, -7225, -3862, 7128, 4038, -7128, -4038, 7027, 4212, |
| -7027, -4212, 6921, 4383, -6921, -4383, 6811, 4551, -6811, -4551, |
| 6698, 4717, -6698, -4717, 6580, 4880, -6580, -4880, 6458, 5040, |
| -6458, -5040, 6333, 5197, -6333, -5197, 6203, 5351, -6203, -5351, |
| 6070, 5501, -6070, -5501, 5933, 5649, -5933, -5649, 5793, 5793, |
| -5793, -5793 }, |
| }; |
| |
| // av1_sinpi_arr_q13_data[i][j] = |
| // round((sqrt2 * sin((j+1)*Pi/9) * 2/3) * (1 << (cos_bit_min + i))) << (3-i) |
| // modified so that elements j=0,1 sum to element j=3. |
| // See also: https://en.wikipedia.org/wiki/Q_(number_format) |
| const int16_t av1_sinpi_arr_q13_data[4][4] = { { 2640, 4968, 6688, 7608 }, |
| { 2640, 4964, 6688, 7604 }, |
| { 2642, 4964, 6688, 7606 }, |
| { 2642, 4964, 6689, 7606 } }; |
| #endif // HAVE_NEON |
| |
| void av1_round_shift_array_c(int32_t *arr, int size, int bit) { |
| int i; |
| if (bit == 0) { |
| return; |
| } else { |
| if (bit > 0) { |
| for (i = 0; i < size; i++) { |
| arr[i] = round_shift(arr[i], bit); |
| } |
| } else { |
| for (i = 0; i < size; i++) { |
| arr[i] = (int32_t)clamp64(((int64_t)1 << (-bit)) * arr[i], INT32_MIN, |
| INT32_MAX); |
| } |
| } |
| } |
| } |
| |
| const TXFM_TYPE av1_txfm_type_ls[5][TX_TYPES_1D] = { |
| { TXFM_TYPE_DCT4, TXFM_TYPE_ADST4, TXFM_TYPE_ADST4, TXFM_TYPE_IDENTITY4 }, |
| { TXFM_TYPE_DCT8, TXFM_TYPE_ADST8, TXFM_TYPE_ADST8, TXFM_TYPE_IDENTITY8 }, |
| { TXFM_TYPE_DCT16, TXFM_TYPE_ADST16, TXFM_TYPE_ADST16, TXFM_TYPE_IDENTITY16 }, |
| { TXFM_TYPE_DCT32, TXFM_TYPE_INVALID, TXFM_TYPE_INVALID, |
| TXFM_TYPE_IDENTITY32 }, |
| { TXFM_TYPE_DCT64, TXFM_TYPE_INVALID, TXFM_TYPE_INVALID, TXFM_TYPE_INVALID } |
| }; |
| |
| const int8_t av1_txfm_stage_num_list[TXFM_TYPES] = { |
| 4, // TXFM_TYPE_DCT4 |
| 6, // TXFM_TYPE_DCT8 |
| 8, // TXFM_TYPE_DCT16 |
| 10, // TXFM_TYPE_DCT32 |
| 12, // TXFM_TYPE_DCT64 |
| 7, // TXFM_TYPE_ADST4 |
| 8, // TXFM_TYPE_ADST8 |
| 10, // TXFM_TYPE_ADST16 |
| 1, // TXFM_TYPE_IDENTITY4 |
| 1, // TXFM_TYPE_IDENTITY8 |
| 1, // TXFM_TYPE_IDENTITY16 |
| 1, // TXFM_TYPE_IDENTITY32 |
| }; |
| |
| void av1_range_check_buf(int32_t stage, const int32_t *input, |
| const int32_t *buf, int32_t size, int8_t bit) { |
| #if CONFIG_COEFFICIENT_RANGE_CHECKING |
| const int64_t max_value = (1LL << (bit - 1)) - 1; |
| const int64_t min_value = -(1LL << (bit - 1)); |
| |
| int in_range = 1; |
| |
| for (int i = 0; i < size; ++i) { |
| if (buf[i] < min_value || buf[i] > max_value) { |
| in_range = 0; |
| } |
| } |
| |
| if (!in_range) { |
| fprintf(stderr, "Error: coeffs contain out-of-range values\n"); |
| fprintf(stderr, "size: %d\n", size); |
| fprintf(stderr, "stage: %d\n", stage); |
| fprintf(stderr, "allowed range: [%" PRId64 ";%" PRId64 "]\n", min_value, |
| max_value); |
| |
| fprintf(stderr, "coeffs: "); |
| |
| fprintf(stderr, "["); |
| for (int j = 0; j < size; j++) { |
| if (j > 0) fprintf(stderr, ", "); |
| fprintf(stderr, "%d", input[j]); |
| } |
| fprintf(stderr, "]\n"); |
| |
| fprintf(stderr, " buf: "); |
| |
| fprintf(stderr, "["); |
| for (int j = 0; j < size; j++) { |
| if (j > 0) fprintf(stderr, ", "); |
| fprintf(stderr, "%d", buf[j]); |
| } |
| fprintf(stderr, "]\n\n"); |
| } |
| |
| assert(in_range); |
| #else |
| (void)stage; |
| (void)input; |
| (void)buf; |
| (void)size; |
| (void)bit; |
| #endif |
| } |
