lib/main/CMSIS/DSP/Include/arm_common_tables.h

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