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| 1 | +/* ---------------------------------------------------------------------- |
| 2 | +* Copyright (C) 2010-2014 ARM Limited. All rights reserved. |
| 3 | +* |
| 4 | +* $Date: 19. October 2015 |
| 5 | +* $Revision: V.1.4.5 a |
| 6 | +* |
| 7 | +* Project: CMSIS DSP Library |
| 8 | +* Title: arm_common_tables.h |
| 9 | +* |
| 10 | +* Description: This file has extern declaration for common tables like Bitreverse, reciprocal etc which are used across different functions |
| 11 | +* |
| 12 | +* Target Processor: Cortex-M4/Cortex-M3 |
| 13 | +* |
| 14 | +* Redistribution and use in source and binary forms, with or without |
| 15 | +* modification, are permitted provided that the following conditions |
| 16 | +* are met: |
| 17 | +* - Redistributions of source code must retain the above copyright |
| 18 | +* notice, this list of conditions and the following disclaimer. |
| 19 | +* - Redistributions in binary form must reproduce the above copyright |
| 20 | +* notice, this list of conditions and the following disclaimer in |
| 21 | +* the documentation and/or other materials provided with the |
| 22 | +* distribution. |
| 23 | +* - Neither the name of ARM LIMITED nor the names of its contributors |
| 24 | +* may be used to endorse or promote products derived from this |
| 25 | +* software without specific prior written permission. |
| 26 | +* |
| 27 | +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 28 | +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 29 | +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 30 | +* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| 31 | +* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 32 | +* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 33 | +* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 34 | +* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| 35 | +* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 36 | +* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| 37 | +* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 38 | +* POSSIBILITY OF SUCH DAMAGE. |
| 39 | +* -------------------------------------------------------------------- */ |
| 40 | + |
| 41 | +#ifndef _ARM_COMMON_TABLES_H |
| 42 | +#define _ARM_COMMON_TABLES_H |
| 43 | + |
| 44 | +#include "arm_math.h" |
| 45 | + |
| 46 | +extern const uint16_t armBitRevTable[1024]; |
| 47 | +extern const q15_t armRecipTableQ15[64]; |
| 48 | +extern const q31_t armRecipTableQ31[64]; |
| 49 | +/* extern const q31_t realCoefAQ31[1024]; */ |
| 50 | +/* extern const q31_t realCoefBQ31[1024]; */ |
| 51 | +extern const float32_t twiddleCoef_16[32]; |
| 52 | +extern const float32_t twiddleCoef_32[64]; |
| 53 | +extern const float32_t twiddleCoef_64[128]; |
| 54 | +extern const float32_t twiddleCoef_128[256]; |
| 55 | +extern const float32_t twiddleCoef_256[512]; |
| 56 | +extern const float32_t twiddleCoef_512[1024]; |
| 57 | +extern const float32_t twiddleCoef_1024[2048]; |
| 58 | +extern const float32_t twiddleCoef_2048[4096]; |
| 59 | +extern const float32_t twiddleCoef_4096[8192]; |
| 60 | +#define twiddleCoef twiddleCoef_4096 |
| 61 | +extern const q31_t twiddleCoef_16_q31[24]; |
| 62 | +extern const q31_t twiddleCoef_32_q31[48]; |
| 63 | +extern const q31_t twiddleCoef_64_q31[96]; |
| 64 | +extern const q31_t twiddleCoef_128_q31[192]; |
| 65 | +extern const q31_t twiddleCoef_256_q31[384]; |
| 66 | +extern const q31_t twiddleCoef_512_q31[768]; |
| 67 | +extern const q31_t twiddleCoef_1024_q31[1536]; |
| 68 | +extern const q31_t twiddleCoef_2048_q31[3072]; |
| 69 | +extern const q31_t twiddleCoef_4096_q31[6144]; |
| 70 | +extern const q15_t twiddleCoef_16_q15[24]; |
| 71 | +extern const q15_t twiddleCoef_32_q15[48]; |
| 72 | +extern const q15_t twiddleCoef_64_q15[96]; |
| 73 | +extern const q15_t twiddleCoef_128_q15[192]; |
| 74 | +extern const q15_t twiddleCoef_256_q15[384]; |
| 75 | +extern const q15_t twiddleCoef_512_q15[768]; |
| 76 | +extern const q15_t twiddleCoef_1024_q15[1536]; |
| 77 | +extern const q15_t twiddleCoef_2048_q15[3072]; |
| 78 | +extern const q15_t twiddleCoef_4096_q15[6144]; |
| 79 | +extern const float32_t twiddleCoef_rfft_32[32]; |
| 80 | +extern const float32_t twiddleCoef_rfft_64[64]; |
| 81 | +extern const float32_t twiddleCoef_rfft_128[128]; |
| 82 | +extern const float32_t twiddleCoef_rfft_256[256]; |
| 83 | +extern const float32_t twiddleCoef_rfft_512[512]; |
| 84 | +extern const float32_t twiddleCoef_rfft_1024[1024]; |
| 85 | +extern const float32_t twiddleCoef_rfft_2048[2048]; |
| 86 | +extern const float32_t twiddleCoef_rfft_4096[4096]; |
| 87 | + |
| 88 | + |
| 89 | +/* floating-point bit reversal tables */ |
| 90 | +#define ARMBITREVINDEXTABLE__16_TABLE_LENGTH ((uint16_t)20 ) |
| 91 | +#define ARMBITREVINDEXTABLE__32_TABLE_LENGTH ((uint16_t)48 ) |
| 92 | +#define ARMBITREVINDEXTABLE__64_TABLE_LENGTH ((uint16_t)56 ) |
| 93 | +#define ARMBITREVINDEXTABLE_128_TABLE_LENGTH ((uint16_t)208 ) |
| 94 | +#define ARMBITREVINDEXTABLE_256_TABLE_LENGTH ((uint16_t)440 ) |
| 95 | +#define ARMBITREVINDEXTABLE_512_TABLE_LENGTH ((uint16_t)448 ) |
| 96 | +#define ARMBITREVINDEXTABLE1024_TABLE_LENGTH ((uint16_t)1800) |
| 97 | +#define ARMBITREVINDEXTABLE2048_TABLE_LENGTH ((uint16_t)3808) |
| 98 | +#define ARMBITREVINDEXTABLE4096_TABLE_LENGTH ((uint16_t)4032) |
| 99 | + |
| 100 | +extern const uint16_t armBitRevIndexTable16[ARMBITREVINDEXTABLE__16_TABLE_LENGTH]; |
| 101 | +extern const uint16_t armBitRevIndexTable32[ARMBITREVINDEXTABLE__32_TABLE_LENGTH]; |
| 102 | +extern const uint16_t armBitRevIndexTable64[ARMBITREVINDEXTABLE__64_TABLE_LENGTH]; |
| 103 | +extern const uint16_t armBitRevIndexTable128[ARMBITREVINDEXTABLE_128_TABLE_LENGTH]; |
| 104 | +extern const uint16_t armBitRevIndexTable256[ARMBITREVINDEXTABLE_256_TABLE_LENGTH]; |
| 105 | +extern const uint16_t armBitRevIndexTable512[ARMBITREVINDEXTABLE_512_TABLE_LENGTH]; |
| 106 | +extern const uint16_t armBitRevIndexTable1024[ARMBITREVINDEXTABLE1024_TABLE_LENGTH]; |
| 107 | +extern const uint16_t armBitRevIndexTable2048[ARMBITREVINDEXTABLE2048_TABLE_LENGTH]; |
| 108 | +extern const uint16_t armBitRevIndexTable4096[ARMBITREVINDEXTABLE4096_TABLE_LENGTH]; |
| 109 | + |
| 110 | +/* fixed-point bit reversal tables */ |
| 111 | +#define ARMBITREVINDEXTABLE_FIXED___16_TABLE_LENGTH ((uint16_t)12 ) |
| 112 | +#define ARMBITREVINDEXTABLE_FIXED___32_TABLE_LENGTH ((uint16_t)24 ) |
| 113 | +#define ARMBITREVINDEXTABLE_FIXED___64_TABLE_LENGTH ((uint16_t)56 ) |
| 114 | +#define ARMBITREVINDEXTABLE_FIXED__128_TABLE_LENGTH ((uint16_t)112 ) |
| 115 | +#define ARMBITREVINDEXTABLE_FIXED__256_TABLE_LENGTH ((uint16_t)240 ) |
| 116 | +#define ARMBITREVINDEXTABLE_FIXED__512_TABLE_LENGTH ((uint16_t)480 ) |
| 117 | +#define ARMBITREVINDEXTABLE_FIXED_1024_TABLE_LENGTH ((uint16_t)992 ) |
| 118 | +#define ARMBITREVINDEXTABLE_FIXED_2048_TABLE_LENGTH ((uint16_t)1984) |
| 119 | +#define ARMBITREVINDEXTABLE_FIXED_4096_TABLE_LENGTH ((uint16_t)4032) |
| 120 | + |
| 121 | +extern const uint16_t armBitRevIndexTable_fixed_16[ARMBITREVINDEXTABLE_FIXED___16_TABLE_LENGTH]; |
| 122 | +extern const uint16_t armBitRevIndexTable_fixed_32[ARMBITREVINDEXTABLE_FIXED___32_TABLE_LENGTH]; |
| 123 | +extern const uint16_t armBitRevIndexTable_fixed_64[ARMBITREVINDEXTABLE_FIXED___64_TABLE_LENGTH]; |
| 124 | +extern const uint16_t armBitRevIndexTable_fixed_128[ARMBITREVINDEXTABLE_FIXED__128_TABLE_LENGTH]; |
| 125 | +extern const uint16_t armBitRevIndexTable_fixed_256[ARMBITREVINDEXTABLE_FIXED__256_TABLE_LENGTH]; |
| 126 | +extern const uint16_t armBitRevIndexTable_fixed_512[ARMBITREVINDEXTABLE_FIXED__512_TABLE_LENGTH]; |
| 127 | +extern const uint16_t armBitRevIndexTable_fixed_1024[ARMBITREVINDEXTABLE_FIXED_1024_TABLE_LENGTH]; |
| 128 | +extern const uint16_t armBitRevIndexTable_fixed_2048[ARMBITREVINDEXTABLE_FIXED_2048_TABLE_LENGTH]; |
| 129 | +extern const uint16_t armBitRevIndexTable_fixed_4096[ARMBITREVINDEXTABLE_FIXED_4096_TABLE_LENGTH]; |
| 130 | + |
| 131 | +/* Tables for Fast Math Sine and Cosine */ |
| 132 | +extern const float32_t sinTable_f32[FAST_MATH_TABLE_SIZE + 1]; |
| 133 | +extern const q31_t sinTable_q31[FAST_MATH_TABLE_SIZE + 1]; |
| 134 | +extern const q15_t sinTable_q15[FAST_MATH_TABLE_SIZE + 1]; |
| 135 | + |
| 136 | +#endif /* ARM_COMMON_TABLES_H */ |
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