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