intrapred_common.h (2520B)
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^SMOOTH_WEIGHT_LOG2_SCALE. 19 #define SMOOTH_WEIGHT_LOG2_SCALE 8 20 21 // Note these arrays are aligned to ensure NEON loads using a cast to uint32_t* 22 // have sufficient alignment. Using 8 preserves the potential for an alignment 23 // hint in load_weight_w8(). For that case, this could be increased to 16 to 24 // allow an aligned load in x86. 25 DECLARE_ALIGNED(8, static const uint8_t, smooth_weights[]) = { 26 // bs = 4 27 255, 149, 85, 64, 28 // bs = 8 29 255, 197, 146, 105, 73, 50, 37, 32, 30 // bs = 16 31 255, 225, 196, 170, 145, 123, 102, 84, 68, 54, 43, 33, 26, 20, 17, 16, 32 // bs = 32 33 255, 240, 225, 210, 196, 182, 169, 157, 145, 133, 122, 111, 101, 92, 83, 74, 34 66, 59, 52, 45, 39, 34, 29, 25, 21, 17, 14, 12, 10, 9, 8, 8, 35 // bs = 64 36 255, 248, 240, 233, 225, 218, 210, 203, 196, 189, 182, 176, 169, 163, 156, 37 150, 144, 138, 133, 127, 121, 116, 111, 106, 101, 96, 91, 86, 82, 77, 73, 69, 38 65, 61, 57, 54, 50, 47, 44, 41, 38, 35, 32, 29, 27, 25, 22, 20, 18, 16, 15, 39 13, 12, 10, 9, 8, 7, 6, 6, 5, 5, 4, 4, 4 40 }; 41 42 DECLARE_ALIGNED(8, static const uint16_t, smooth_weights_u16[]) = { 43 // block dimension = 4 44 255, 149, 85, 64, 45 // block dimension = 8 46 255, 197, 146, 105, 73, 50, 37, 32, 47 // block dimension = 16 48 255, 225, 196, 170, 145, 123, 102, 84, 68, 54, 43, 33, 26, 20, 17, 16, 49 // block dimension = 32 50 255, 240, 225, 210, 196, 182, 169, 157, 145, 133, 122, 111, 101, 92, 83, 74, 51 66, 59, 52, 45, 39, 34, 29, 25, 21, 17, 14, 12, 10, 9, 8, 8, 52 // block dimension = 64 53 255, 248, 240, 233, 225, 218, 210, 203, 196, 189, 182, 176, 169, 163, 156, 54 150, 144, 138, 133, 127, 121, 116, 111, 106, 101, 96, 91, 86, 82, 77, 73, 69, 55 65, 61, 57, 54, 50, 47, 44, 41, 38, 35, 32, 29, 27, 25, 22, 20, 18, 16, 15, 56 13, 12, 10, 9, 8, 7, 6, 6, 5, 5, 4, 4, 4 57 }; 58 59 #endif // AOM_AOM_DSP_INTRAPRED_COMMON_H_