1 /* 2 * Copyright (c) 2016, 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 #ifndef AOM_AOM_DSP_INTRAPRED_COMMON_H_ 13 #define AOM_AOM_DSP_INTRAPRED_COMMON_H_ 14 15 #include "config/aom_config.h" 16 17 // Weights are quadratic from '1' to '1 / block_size', scaled by 18 // 2^sm_weight_log2_scale. 19 static const int sm_weight_log2_scale = 8; 20 21 // max(block_size_wide[BLOCK_LARGEST], block_size_high[BLOCK_LARGEST]) 22 #define MAX_BLOCK_DIM 64 23 24 /* clang-format off */ 25 static const uint8_t sm_weight_arrays[2 * MAX_BLOCK_DIM] = { 26 // Unused, because we always offset by bs, which is at least 2. 27 0, 0, 28 // bs = 2 29 255, 128, 30 // bs = 4 31 255, 149, 85, 64, 32 // bs = 8 33 255, 197, 146, 105, 73, 50, 37, 32, 34 // bs = 16 35 255, 225, 196, 170, 145, 123, 102, 84, 68, 54, 43, 33, 26, 20, 17, 16, 36 // bs = 32 37 255, 240, 225, 210, 196, 182, 169, 157, 145, 133, 122, 111, 101, 92, 83, 74, 38 66, 59, 52, 45, 39, 34, 29, 25, 21, 17, 14, 12, 10, 9, 8, 8, 39 // bs = 64 40 255, 248, 240, 233, 225, 218, 210, 203, 196, 189, 182, 176, 169, 163, 156, 41 150, 144, 138, 133, 127, 121, 116, 111, 106, 101, 96, 91, 86, 82, 77, 73, 69, 42 65, 61, 57, 54, 50, 47, 44, 41, 38, 35, 32, 29, 27, 25, 22, 20, 18, 16, 15, 43 13, 12, 10, 9, 8, 7, 6, 6, 5, 5, 4, 4, 4, 44 }; 45 /* clang-format on */ 46 47 #endif // AOM_AOM_DSP_INTRAPRED_COMMON_H_ 48
