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| 2 | mjames | 1 | /* ---------------------------------------------------------------------- |
| 2 | * Project: CMSIS DSP Library |
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| 3 | * Title: arm_common_tables.h |
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| 4 | * Description: Extern declaration for common tables |
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| 5 | * |
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| 6 | * $Date: 27. January 2017 |
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| 7 | * $Revision: V.1.5.1 |
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| 8 | * |
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| 9 | * Target Processor: Cortex-M cores |
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| 10 | * -------------------------------------------------------------------- */ |
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| 11 | /* |
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| 12 | * Copyright (C) 2010-2017 ARM Limited or its affiliates. All rights reserved. |
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| 13 | * |
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| 14 | * SPDX-License-Identifier: Apache-2.0 |
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| 15 | * |
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| 16 | * Licensed under the Apache License, Version 2.0 (the License); you may |
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| 17 | * not use this file except in compliance with the License. |
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| 18 | * You may obtain a copy of the License at |
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| 19 | * |
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| 20 | * www.apache.org/licenses/LICENSE-2.0 |
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| 21 | * |
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| 22 | * Unless required by applicable law or agreed to in writing, software |
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| 23 | * distributed under the License is distributed on an AS IS BASIS, WITHOUT |
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| 24 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 25 | * See the License for the specific language governing permissions and |
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| 26 | * limitations under the License. |
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| 27 | */ |
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| 28 | |||
| 29 | #ifndef _ARM_COMMON_TABLES_H |
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| 30 | #define _ARM_COMMON_TABLES_H |
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| 31 | |||
| 32 | #include "arm_math.h" |
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| 33 | |||
| 34 | extern const uint16_t armBitRevTable[1024]; |
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| 35 | extern const q15_t armRecipTableQ15[64]; |
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| 36 | extern const q31_t armRecipTableQ31[64]; |
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| 37 | extern const float32_t twiddleCoef_16[32]; |
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| 38 | extern const float32_t twiddleCoef_32[64]; |
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| 39 | extern const float32_t twiddleCoef_64[128]; |
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| 40 | extern const float32_t twiddleCoef_128[256]; |
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| 41 | extern const float32_t twiddleCoef_256[512]; |
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| 42 | extern const float32_t twiddleCoef_512[1024]; |
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| 43 | extern const float32_t twiddleCoef_1024[2048]; |
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| 44 | extern const float32_t twiddleCoef_2048[4096]; |
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| 45 | extern const float32_t twiddleCoef_4096[8192]; |
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| 46 | #define twiddleCoef twiddleCoef_4096 |
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| 47 | extern const q31_t twiddleCoef_16_q31[24]; |
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| 48 | extern const q31_t twiddleCoef_32_q31[48]; |
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| 49 | extern const q31_t twiddleCoef_64_q31[96]; |
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| 50 | extern const q31_t twiddleCoef_128_q31[192]; |
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| 51 | extern const q31_t twiddleCoef_256_q31[384]; |
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| 52 | extern const q31_t twiddleCoef_512_q31[768]; |
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| 53 | extern const q31_t twiddleCoef_1024_q31[1536]; |
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| 54 | extern const q31_t twiddleCoef_2048_q31[3072]; |
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| 55 | extern const q31_t twiddleCoef_4096_q31[6144]; |
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| 56 | extern const q15_t twiddleCoef_16_q15[24]; |
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| 57 | extern const q15_t twiddleCoef_32_q15[48]; |
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| 58 | extern const q15_t twiddleCoef_64_q15[96]; |
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| 59 | extern const q15_t twiddleCoef_128_q15[192]; |
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| 60 | extern const q15_t twiddleCoef_256_q15[384]; |
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| 61 | extern const q15_t twiddleCoef_512_q15[768]; |
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| 62 | extern const q15_t twiddleCoef_1024_q15[1536]; |
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| 63 | extern const q15_t twiddleCoef_2048_q15[3072]; |
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| 64 | extern const q15_t twiddleCoef_4096_q15[6144]; |
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| 65 | extern const float32_t twiddleCoef_rfft_32[32]; |
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| 66 | extern const float32_t twiddleCoef_rfft_64[64]; |
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| 67 | extern const float32_t twiddleCoef_rfft_128[128]; |
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| 68 | extern const float32_t twiddleCoef_rfft_256[256]; |
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| 69 | extern const float32_t twiddleCoef_rfft_512[512]; |
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| 70 | extern const float32_t twiddleCoef_rfft_1024[1024]; |
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| 71 | extern const float32_t twiddleCoef_rfft_2048[2048]; |
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| 72 | extern const float32_t twiddleCoef_rfft_4096[4096]; |
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| 73 | |||
| 74 | /* floating-point bit reversal tables */ |
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| 75 | #define ARMBITREVINDEXTABLE_16_TABLE_LENGTH ((uint16_t)20) |
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| 76 | #define ARMBITREVINDEXTABLE_32_TABLE_LENGTH ((uint16_t)48) |
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| 77 | #define ARMBITREVINDEXTABLE_64_TABLE_LENGTH ((uint16_t)56) |
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| 78 | #define ARMBITREVINDEXTABLE_128_TABLE_LENGTH ((uint16_t)208) |
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| 79 | #define ARMBITREVINDEXTABLE_256_TABLE_LENGTH ((uint16_t)440) |
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| 80 | #define ARMBITREVINDEXTABLE_512_TABLE_LENGTH ((uint16_t)448) |
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| 81 | #define ARMBITREVINDEXTABLE_1024_TABLE_LENGTH ((uint16_t)1800) |
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| 82 | #define ARMBITREVINDEXTABLE_2048_TABLE_LENGTH ((uint16_t)3808) |
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| 83 | #define ARMBITREVINDEXTABLE_4096_TABLE_LENGTH ((uint16_t)4032) |
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| 84 | |||
| 85 | extern const uint16_t armBitRevIndexTable16[ARMBITREVINDEXTABLE_16_TABLE_LENGTH]; |
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| 86 | extern const uint16_t armBitRevIndexTable32[ARMBITREVINDEXTABLE_32_TABLE_LENGTH]; |
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| 87 | extern const uint16_t armBitRevIndexTable64[ARMBITREVINDEXTABLE_64_TABLE_LENGTH]; |
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| 88 | extern const uint16_t armBitRevIndexTable128[ARMBITREVINDEXTABLE_128_TABLE_LENGTH]; |
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| 89 | extern const uint16_t armBitRevIndexTable256[ARMBITREVINDEXTABLE_256_TABLE_LENGTH]; |
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| 90 | extern const uint16_t armBitRevIndexTable512[ARMBITREVINDEXTABLE_512_TABLE_LENGTH]; |
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| 91 | extern const uint16_t armBitRevIndexTable1024[ARMBITREVINDEXTABLE_1024_TABLE_LENGTH]; |
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| 92 | extern const uint16_t armBitRevIndexTable2048[ARMBITREVINDEXTABLE_2048_TABLE_LENGTH]; |
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| 93 | extern const uint16_t armBitRevIndexTable4096[ARMBITREVINDEXTABLE_4096_TABLE_LENGTH]; |
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| 94 | |||
| 95 | /* fixed-point bit reversal tables */ |
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| 96 | #define ARMBITREVINDEXTABLE_FIXED_16_TABLE_LENGTH ((uint16_t)12) |
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| 97 | #define ARMBITREVINDEXTABLE_FIXED_32_TABLE_LENGTH ((uint16_t)24) |
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| 98 | #define ARMBITREVINDEXTABLE_FIXED_64_TABLE_LENGTH ((uint16_t)56) |
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| 99 | #define ARMBITREVINDEXTABLE_FIXED_128_TABLE_LENGTH ((uint16_t)112) |
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| 100 | #define ARMBITREVINDEXTABLE_FIXED_256_TABLE_LENGTH ((uint16_t)240) |
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| 101 | #define ARMBITREVINDEXTABLE_FIXED_512_TABLE_LENGTH ((uint16_t)480) |
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| 102 | #define ARMBITREVINDEXTABLE_FIXED_1024_TABLE_LENGTH ((uint16_t)992) |
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| 103 | #define ARMBITREVINDEXTABLE_FIXED_2048_TABLE_LENGTH ((uint16_t)1984) |
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| 104 | #define ARMBITREVINDEXTABLE_FIXED_4096_TABLE_LENGTH ((uint16_t)4032) |
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| 105 | |||
| 106 | extern const uint16_t armBitRevIndexTable_fixed_16[ARMBITREVINDEXTABLE_FIXED_16_TABLE_LENGTH]; |
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| 107 | extern const uint16_t armBitRevIndexTable_fixed_32[ARMBITREVINDEXTABLE_FIXED_32_TABLE_LENGTH]; |
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| 108 | extern const uint16_t armBitRevIndexTable_fixed_64[ARMBITREVINDEXTABLE_FIXED_64_TABLE_LENGTH]; |
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| 109 | extern const uint16_t armBitRevIndexTable_fixed_128[ARMBITREVINDEXTABLE_FIXED_128_TABLE_LENGTH]; |
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| 110 | extern const uint16_t armBitRevIndexTable_fixed_256[ARMBITREVINDEXTABLE_FIXED_256_TABLE_LENGTH]; |
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| 111 | extern const uint16_t armBitRevIndexTable_fixed_512[ARMBITREVINDEXTABLE_FIXED_512_TABLE_LENGTH]; |
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| 112 | extern const uint16_t armBitRevIndexTable_fixed_1024[ARMBITREVINDEXTABLE_FIXED_1024_TABLE_LENGTH]; |
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| 113 | extern const uint16_t armBitRevIndexTable_fixed_2048[ARMBITREVINDEXTABLE_FIXED_2048_TABLE_LENGTH]; |
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| 114 | extern const uint16_t armBitRevIndexTable_fixed_4096[ARMBITREVINDEXTABLE_FIXED_4096_TABLE_LENGTH]; |
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| 115 | |||
| 116 | /* Tables for Fast Math Sine and Cosine */ |
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| 117 | extern const float32_t sinTable_f32[FAST_MATH_TABLE_SIZE + 1]; |
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| 118 | extern const q31_t sinTable_q31[FAST_MATH_TABLE_SIZE + 1]; |
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| 119 | extern const q15_t sinTable_q15[FAST_MATH_TABLE_SIZE + 1]; |
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| 120 | |||
| 121 | #endif /* ARM_COMMON_TABLES_H */ |