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Diffstat (limited to '')
-rw-r--r-- | third_party/aom/aom_dsp/intrapred_common.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/intrapred_common.h b/third_party/aom/aom_dsp/intrapred_common.h new file mode 100644 index 0000000000..6172224be1 --- /dev/null +++ b/third_party/aom/aom_dsp/intrapred_common.h @@ -0,0 +1,59 @@ +/* + * Copyright (c) 2016, 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. + */ + +#ifndef AOM_AOM_DSP_INTRAPRED_COMMON_H_ +#define AOM_AOM_DSP_INTRAPRED_COMMON_H_ + +#include "config/aom_config.h" + +// Weights are quadratic from '1' to '1 / block_size', scaled by +// 2^SMOOTH_WEIGHT_LOG2_SCALE. +#define SMOOTH_WEIGHT_LOG2_SCALE 8 + +// Note these arrays are aligned to ensure NEON loads using a cast to uint32_t* +// have sufficient alignment. Using 8 preserves the potential for an alignment +// hint in load_weight_w8(). For that case, this could be increased to 16 to +// allow an aligned load in x86. +DECLARE_ALIGNED(8, static const uint8_t, smooth_weights[]) = { + // bs = 4 + 255, 149, 85, 64, + // bs = 8 + 255, 197, 146, 105, 73, 50, 37, 32, + // bs = 16 + 255, 225, 196, 170, 145, 123, 102, 84, 68, 54, 43, 33, 26, 20, 17, 16, + // bs = 32 + 255, 240, 225, 210, 196, 182, 169, 157, 145, 133, 122, 111, 101, 92, 83, 74, + 66, 59, 52, 45, 39, 34, 29, 25, 21, 17, 14, 12, 10, 9, 8, 8, + // bs = 64 + 255, 248, 240, 233, 225, 218, 210, 203, 196, 189, 182, 176, 169, 163, 156, + 150, 144, 138, 133, 127, 121, 116, 111, 106, 101, 96, 91, 86, 82, 77, 73, 69, + 65, 61, 57, 54, 50, 47, 44, 41, 38, 35, 32, 29, 27, 25, 22, 20, 18, 16, 15, + 13, 12, 10, 9, 8, 7, 6, 6, 5, 5, 4, 4, 4 +}; + +DECLARE_ALIGNED(8, static const uint16_t, smooth_weights_u16[]) = { + // block dimension = 4 + 255, 149, 85, 64, + // block dimension = 8 + 255, 197, 146, 105, 73, 50, 37, 32, + // block dimension = 16 + 255, 225, 196, 170, 145, 123, 102, 84, 68, 54, 43, 33, 26, 20, 17, 16, + // block dimension = 32 + 255, 240, 225, 210, 196, 182, 169, 157, 145, 133, 122, 111, 101, 92, 83, 74, + 66, 59, 52, 45, 39, 34, 29, 25, 21, 17, 14, 12, 10, 9, 8, 8, + // block dimension = 64 + 255, 248, 240, 233, 225, 218, 210, 203, 196, 189, 182, 176, 169, 163, 156, + 150, 144, 138, 133, 127, 121, 116, 111, 106, 101, 96, 91, 86, 82, 77, 73, 69, + 65, 61, 57, 54, 50, 47, 44, 41, 38, 35, 32, 29, 27, 25, 22, 20, 18, 16, 15, + 13, 12, 10, 9, 8, 7, 6, 6, 5, 5, 4, 4, 4 +}; + +#endif // AOM_AOM_DSP_INTRAPRED_COMMON_H_ |