1 /* ---------------------------------------------------------------------- 2 * Project: CMSIS DSP Library 3 * Title: arm_const_structs.c 4 * Description: Constant structs that are initialized for user convenience. 5 * For example, some can be given as arguments to the arm_cfft_f32() or arm_rfft_f32() functions. 6 * 7 * $Date: 23 April 2021 8 * $Revision: V1.9.0 9 * 10 * Target Processor: Cortex-M and Cortex-A cores 11 * -------------------------------------------------------------------- */ 12 /* 13 * Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved. 14 * 15 * SPDX-License-Identifier: Apache-2.0 16 * 17 * Licensed under the Apache License, Version 2.0 (the License); you may 18 * not use this file except in compliance with the License. 19 * You may obtain a copy of the License at 20 * 21 * www.apache.org/licenses/LICENSE-2.0 22 * 23 * Unless required by applicable law or agreed to in writing, software 24 * distributed under the License is distributed on an AS IS BASIS, WITHOUT 25 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 26 * See the License for the specific language governing permissions and 27 * limitations under the License. 28 */ 29 30 #include "arm_math_types.h" 31 #include "arm_const_structs.h" 32 33 /* 34 ALLOW TABLE is true when config table is enabled and the Tramsform folder is included 35 for compilation. 36 */ 37 38 /* Floating-point structs */ 39 const arm_cfft_instance_f64 arm_cfft_sR_f64_len16 = { 40 16, (const float64_t *)twiddleCoefF64_16, armBitRevIndexTableF64_16, ARMBITREVINDEXTABLEF64_16_TABLE_LENGTH 41 }; 42 43 const arm_cfft_instance_f64 arm_cfft_sR_f64_len32 = { 44 32, (const float64_t *)twiddleCoefF64_32, armBitRevIndexTableF64_32, ARMBITREVINDEXTABLEF64_32_TABLE_LENGTH 45 }; 46 47 const arm_cfft_instance_f64 arm_cfft_sR_f64_len64 = { 48 64, (const float64_t *)twiddleCoefF64_64, armBitRevIndexTableF64_64, ARMBITREVINDEXTABLEF64_64_TABLE_LENGTH 49 }; 50 51 const arm_cfft_instance_f64 arm_cfft_sR_f64_len128 = { 52 128, (const float64_t *)twiddleCoefF64_128, armBitRevIndexTableF64_128, ARMBITREVINDEXTABLEF64_128_TABLE_LENGTH 53 }; 54 55 const arm_cfft_instance_f64 arm_cfft_sR_f64_len256 = { 56 256, (const float64_t *)twiddleCoefF64_256, armBitRevIndexTableF64_256, ARMBITREVINDEXTABLEF64_256_TABLE_LENGTH 57 }; 58 59 const arm_cfft_instance_f64 arm_cfft_sR_f64_len512 = { 60 512, (const float64_t *)twiddleCoefF64_512, armBitRevIndexTableF64_512, ARMBITREVINDEXTABLEF64_512_TABLE_LENGTH 61 }; 62 63 const arm_cfft_instance_f64 arm_cfft_sR_f64_len1024 = { 64 1024, (const float64_t *)twiddleCoefF64_1024, armBitRevIndexTableF64_1024, ARMBITREVINDEXTABLEF64_1024_TABLE_LENGTH 65 }; 66 67 const arm_cfft_instance_f64 arm_cfft_sR_f64_len2048 = { 68 2048, (const float64_t *)twiddleCoefF64_2048, armBitRevIndexTableF64_2048, ARMBITREVINDEXTABLEF64_2048_TABLE_LENGTH 69 }; 70 71 const arm_cfft_instance_f64 arm_cfft_sR_f64_len4096 = { 72 4096, (const float64_t *)twiddleCoefF64_4096, armBitRevIndexTableF64_4096, ARMBITREVINDEXTABLEF64_4096_TABLE_LENGTH 73 }; 74 75 /* Floating-point structs */ 76 #if !defined(ARM_MATH_MVEF) || defined(ARM_MATH_AUTOVECTORIZE) 77 78 79 const arm_cfft_instance_f32 arm_cfft_sR_f32_len16 = { 80 16, twiddleCoef_16, armBitRevIndexTable16, ARMBITREVINDEXTABLE_16_TABLE_LENGTH 81 }; 82 83 84 const arm_cfft_instance_f32 arm_cfft_sR_f32_len32 = { 85 32, twiddleCoef_32, armBitRevIndexTable32, ARMBITREVINDEXTABLE_32_TABLE_LENGTH 86 }; 87 88 const arm_cfft_instance_f32 arm_cfft_sR_f32_len64 = { 89 64, twiddleCoef_64, armBitRevIndexTable64, ARMBITREVINDEXTABLE_64_TABLE_LENGTH 90 }; 91 92 const arm_cfft_instance_f32 arm_cfft_sR_f32_len128 = { 93 128, twiddleCoef_128, armBitRevIndexTable128, ARMBITREVINDEXTABLE_128_TABLE_LENGTH 94 }; 95 96 const arm_cfft_instance_f32 arm_cfft_sR_f32_len256 = { 97 256, twiddleCoef_256, armBitRevIndexTable256, ARMBITREVINDEXTABLE_256_TABLE_LENGTH 98 }; 99 100 const arm_cfft_instance_f32 arm_cfft_sR_f32_len512 = { 101 512, twiddleCoef_512, armBitRevIndexTable512, ARMBITREVINDEXTABLE_512_TABLE_LENGTH 102 }; 103 104 const arm_cfft_instance_f32 arm_cfft_sR_f32_len1024 = { 105 1024, twiddleCoef_1024, armBitRevIndexTable1024, ARMBITREVINDEXTABLE_1024_TABLE_LENGTH 106 }; 107 108 const arm_cfft_instance_f32 arm_cfft_sR_f32_len2048 = { 109 2048, twiddleCoef_2048, armBitRevIndexTable2048, ARMBITREVINDEXTABLE_2048_TABLE_LENGTH 110 }; 111 112 const arm_cfft_instance_f32 arm_cfft_sR_f32_len4096 = { 113 4096, twiddleCoef_4096, armBitRevIndexTable4096, ARMBITREVINDEXTABLE_4096_TABLE_LENGTH 114 }; 115 116 #endif /* !defined(ARM_MATH_MVEF) || defined(ARM_MATH_AUTOVECTORIZE) */ 117 118 /* Fixed-point structs */ 119 120 #if !defined(ARM_MATH_MVEI) || defined(ARM_MATH_AUTOVECTORIZE) 121 122 /* 123 124 Those structures cannot be used to initialize the MVE version of the FFT Q31 instances. 125 So they are not compiled when MVE is defined. 126 127 For the MVE version, the new arm_cfft_init_f32 must be used. 128 129 130 */ 131 132 const arm_cfft_instance_q31 arm_cfft_sR_q31_len16 = { 133 16, twiddleCoef_16_q31, armBitRevIndexTable_fixed_16, ARMBITREVINDEXTABLE_FIXED_16_TABLE_LENGTH 134 }; 135 136 const arm_cfft_instance_q31 arm_cfft_sR_q31_len32 = { 137 32, twiddleCoef_32_q31, armBitRevIndexTable_fixed_32, ARMBITREVINDEXTABLE_FIXED_32_TABLE_LENGTH 138 }; 139 140 const arm_cfft_instance_q31 arm_cfft_sR_q31_len64 = { 141 64, twiddleCoef_64_q31, armBitRevIndexTable_fixed_64, ARMBITREVINDEXTABLE_FIXED_64_TABLE_LENGTH 142 }; 143 144 const arm_cfft_instance_q31 arm_cfft_sR_q31_len128 = { 145 128, twiddleCoef_128_q31, armBitRevIndexTable_fixed_128, ARMBITREVINDEXTABLE_FIXED_128_TABLE_LENGTH 146 }; 147 148 const arm_cfft_instance_q31 arm_cfft_sR_q31_len256 = { 149 256, twiddleCoef_256_q31, armBitRevIndexTable_fixed_256, ARMBITREVINDEXTABLE_FIXED_256_TABLE_LENGTH 150 }; 151 152 const arm_cfft_instance_q31 arm_cfft_sR_q31_len512 = { 153 512, twiddleCoef_512_q31, armBitRevIndexTable_fixed_512, ARMBITREVINDEXTABLE_FIXED_512_TABLE_LENGTH 154 }; 155 156 const arm_cfft_instance_q31 arm_cfft_sR_q31_len1024 = { 157 1024, twiddleCoef_1024_q31, armBitRevIndexTable_fixed_1024, ARMBITREVINDEXTABLE_FIXED_1024_TABLE_LENGTH 158 }; 159 160 const arm_cfft_instance_q31 arm_cfft_sR_q31_len2048 = { 161 2048, twiddleCoef_2048_q31, armBitRevIndexTable_fixed_2048, ARMBITREVINDEXTABLE_FIXED_2048_TABLE_LENGTH 162 }; 163 164 const arm_cfft_instance_q31 arm_cfft_sR_q31_len4096 = { 165 4096, twiddleCoef_4096_q31, armBitRevIndexTable_fixed_4096, ARMBITREVINDEXTABLE_FIXED_4096_TABLE_LENGTH 166 }; 167 168 169 const arm_cfft_instance_q15 arm_cfft_sR_q15_len16 = { 170 16, twiddleCoef_16_q15, armBitRevIndexTable_fixed_16, ARMBITREVINDEXTABLE_FIXED_16_TABLE_LENGTH 171 }; 172 173 const arm_cfft_instance_q15 arm_cfft_sR_q15_len32 = { 174 32, twiddleCoef_32_q15, armBitRevIndexTable_fixed_32, ARMBITREVINDEXTABLE_FIXED_32_TABLE_LENGTH 175 }; 176 177 const arm_cfft_instance_q15 arm_cfft_sR_q15_len64 = { 178 64, twiddleCoef_64_q15, armBitRevIndexTable_fixed_64, ARMBITREVINDEXTABLE_FIXED_64_TABLE_LENGTH 179 }; 180 181 const arm_cfft_instance_q15 arm_cfft_sR_q15_len128 = { 182 128, twiddleCoef_128_q15, armBitRevIndexTable_fixed_128, ARMBITREVINDEXTABLE_FIXED_128_TABLE_LENGTH 183 }; 184 185 const arm_cfft_instance_q15 arm_cfft_sR_q15_len256 = { 186 256, twiddleCoef_256_q15, armBitRevIndexTable_fixed_256, ARMBITREVINDEXTABLE_FIXED_256_TABLE_LENGTH 187 }; 188 189 const arm_cfft_instance_q15 arm_cfft_sR_q15_len512 = { 190 512, twiddleCoef_512_q15, armBitRevIndexTable_fixed_512, ARMBITREVINDEXTABLE_FIXED_512_TABLE_LENGTH 191 }; 192 193 const arm_cfft_instance_q15 arm_cfft_sR_q15_len1024 = { 194 1024, twiddleCoef_1024_q15, armBitRevIndexTable_fixed_1024, ARMBITREVINDEXTABLE_FIXED_1024_TABLE_LENGTH 195 }; 196 197 const arm_cfft_instance_q15 arm_cfft_sR_q15_len2048 = { 198 2048, twiddleCoef_2048_q15, armBitRevIndexTable_fixed_2048, ARMBITREVINDEXTABLE_FIXED_2048_TABLE_LENGTH 199 }; 200 201 const arm_cfft_instance_q15 arm_cfft_sR_q15_len4096 = { 202 4096, twiddleCoef_4096_q15, armBitRevIndexTable_fixed_4096, ARMBITREVINDEXTABLE_FIXED_4096_TABLE_LENGTH 203 }; 204 205 #endif /* !defined(ARM_MATH_MVEI) */ 206 207 /* Structure for real-value inputs */ 208 /* Double precision strucs */ 209 210 const arm_rfft_fast_instance_f64 arm_rfft_fast_sR_f64_len32 = { 211 { 16, (const float64_t *)twiddleCoefF64_16, armBitRevIndexTableF64_16, ARMBITREVINDEXTABLEF64_16_TABLE_LENGTH }, 212 32U, 213 (float64_t *)twiddleCoefF64_rfft_32 214 }; 215 216 const arm_rfft_fast_instance_f64 arm_rfft_fast_sR_f64_len64 = { 217 { 32, (const float64_t *)twiddleCoefF64_32, armBitRevIndexTableF64_32, ARMBITREVINDEXTABLEF64_32_TABLE_LENGTH }, 218 64U, 219 (float64_t *)twiddleCoefF64_rfft_64 220 }; 221 222 const arm_rfft_fast_instance_f64 arm_rfft_fast_sR_f64_len128 = { 223 { 64, (const float64_t *)twiddleCoefF64_64, armBitRevIndexTableF64_64, ARMBITREVINDEXTABLEF64_64_TABLE_LENGTH }, 224 128U, 225 (float64_t *)twiddleCoefF64_rfft_128 226 }; 227 228 const arm_rfft_fast_instance_f64 arm_rfft_fast_sR_f64_len256 = { 229 { 128, (const float64_t *)twiddleCoefF64_128, armBitRevIndexTableF64_128, ARMBITREVINDEXTABLEF64_128_TABLE_LENGTH }, 230 256U, 231 (float64_t *)twiddleCoefF64_rfft_256 232 }; 233 234 const arm_rfft_fast_instance_f64 arm_rfft_fast_sR_f64_len512 = { 235 { 256, (const float64_t *)twiddleCoefF64_256, armBitRevIndexTableF64_256, ARMBITREVINDEXTABLEF64_256_TABLE_LENGTH }, 236 512U, 237 (float64_t *)twiddleCoefF64_rfft_512 238 }; 239 240 const arm_rfft_fast_instance_f64 arm_rfft_fast_sR_f64_len1024 = { 241 { 512, (const float64_t *)twiddleCoefF64_512, armBitRevIndexTableF64_512, ARMBITREVINDEXTABLEF64_512_TABLE_LENGTH }, 242 1024U, 243 (float64_t *)twiddleCoefF64_rfft_1024 244 }; 245 246 const arm_rfft_fast_instance_f64 arm_rfft_fast_sR_f64_len2048 = { 247 { 1024, (const float64_t *)twiddleCoefF64_1024, armBitRevIndexTableF64_1024, ARMBITREVINDEXTABLEF64_1024_TABLE_LENGTH }, 248 2048U, 249 (float64_t *)twiddleCoefF64_rfft_2048 250 }; 251 252 const arm_rfft_fast_instance_f64 arm_rfft_fast_sR_f64_len4096 = { 253 { 2048, (const float64_t *)twiddleCoefF64_2048, armBitRevIndexTableF64_2048, ARMBITREVINDEXTABLEF64_2048_TABLE_LENGTH }, 254 4096U, 255 (float64_t *)twiddleCoefF64_rfft_4096 256 }; 257 258 /* Floating-point structs */ 259 260 #if !defined(ARM_MATH_MVEF) || defined(ARM_MATH_AUTOVECTORIZE) 261 262 const arm_rfft_fast_instance_f32 arm_rfft_fast_sR_f32_len32 = { 263 { 16, twiddleCoef_16, armBitRevIndexTable16, ARMBITREVINDEXTABLE_16_TABLE_LENGTH }, 264 32U, 265 (float32_t *)twiddleCoef_rfft_32 266 }; 267 268 const arm_rfft_fast_instance_f32 arm_rfft_fast_sR_f32_len64 = { 269 { 32, twiddleCoef_32, armBitRevIndexTable32, ARMBITREVINDEXTABLE_32_TABLE_LENGTH }, 270 64U, 271 (float32_t *)twiddleCoef_rfft_64 272 }; 273 274 const arm_rfft_fast_instance_f32 arm_rfft_fast_sR_f32_len128 = { 275 { 64, twiddleCoef_64, armBitRevIndexTable64, ARMBITREVINDEXTABLE_64_TABLE_LENGTH }, 276 128U, 277 (float32_t *)twiddleCoef_rfft_128 278 }; 279 280 const arm_rfft_fast_instance_f32 arm_rfft_fast_sR_f32_len256 = { 281 { 128, twiddleCoef_128, armBitRevIndexTable128, ARMBITREVINDEXTABLE_128_TABLE_LENGTH }, 282 256U, 283 (float32_t *)twiddleCoef_rfft_256 284 }; 285 286 const arm_rfft_fast_instance_f32 arm_rfft_fast_sR_f32_len512 = { 287 { 256, twiddleCoef_256, armBitRevIndexTable256, ARMBITREVINDEXTABLE_256_TABLE_LENGTH }, 288 512U, 289 (float32_t *)twiddleCoef_rfft_512 290 }; 291 292 const arm_rfft_fast_instance_f32 arm_rfft_fast_sR_f32_len1024 = { 293 { 512, twiddleCoef_512, armBitRevIndexTable512, ARMBITREVINDEXTABLE_512_TABLE_LENGTH }, 294 1024U, 295 (float32_t *)twiddleCoef_rfft_1024 296 }; 297 298 const arm_rfft_fast_instance_f32 arm_rfft_fast_sR_f32_len2048 = { 299 { 1024, twiddleCoef_1024, armBitRevIndexTable1024, ARMBITREVINDEXTABLE_1024_TABLE_LENGTH }, 300 2048U, 301 (float32_t *)twiddleCoef_rfft_2048 302 }; 303 304 const arm_rfft_fast_instance_f32 arm_rfft_fast_sR_f32_len4096 = { 305 { 2048, twiddleCoef_2048, armBitRevIndexTable2048, ARMBITREVINDEXTABLE_2048_TABLE_LENGTH }, 306 4096U, 307 (float32_t *)twiddleCoef_rfft_4096 308 }; 309 310 #endif /* #if !defined(ARM_MATH_MVEF) || defined(ARM_MATH_AUTOVECTORIZE) */ 311 312 /* Fixed-point structs */ 313 /* q31_t */ 314 315 #if !defined(ARM_MATH_MVEI) || defined(ARM_MATH_AUTOVECTORIZE) 316 317 /* 318 319 Those structures cannot be used to initialize the MVE version of the FFT Q31 instances. 320 So they are not compiled when MVE is defined. 321 322 For the MVE version, the new arm_cfft_init_f32 must be used. 323 324 325 */ 326 327 const arm_rfft_instance_q31 arm_rfft_sR_q31_len32 = { 328 32U, 329 0, 330 1, 331 256U, 332 (q31_t*)realCoefAQ31, 333 (q31_t*)realCoefBQ31, 334 &arm_cfft_sR_q31_len16 335 }; 336 337 const arm_rfft_instance_q31 arm_rfft_sR_q31_len64 = { 338 64U, 339 0, 340 1, 341 128U, 342 (q31_t*)realCoefAQ31, 343 (q31_t*)realCoefBQ31, 344 &arm_cfft_sR_q31_len32 345 }; 346 347 const arm_rfft_instance_q31 arm_rfft_sR_q31_len128 = { 348 128U, 349 0, 350 1, 351 64U, 352 (q31_t*)realCoefAQ31, 353 (q31_t*)realCoefBQ31, 354 &arm_cfft_sR_q31_len64 355 }; 356 357 const arm_rfft_instance_q31 arm_rfft_sR_q31_len256 = { 358 256U, 359 0, 360 1, 361 32U, 362 (q31_t*)realCoefAQ31, 363 (q31_t*)realCoefBQ31, 364 &arm_cfft_sR_q31_len128 365 }; 366 367 const arm_rfft_instance_q31 arm_rfft_sR_q31_len512 = { 368 512U, 369 0, 370 1, 371 16U, 372 (q31_t*)realCoefAQ31, 373 (q31_t*)realCoefBQ31, 374 &arm_cfft_sR_q31_len256 375 }; 376 377 const arm_rfft_instance_q31 arm_rfft_sR_q31_len1024 = { 378 1024U, 379 0, 380 1, 381 8U, 382 (q31_t*)realCoefAQ31, 383 (q31_t*)realCoefBQ31, 384 &arm_cfft_sR_q31_len512 385 }; 386 387 const arm_rfft_instance_q31 arm_rfft_sR_q31_len2048 = { 388 2048U, 389 0, 390 1, 391 4U, 392 (q31_t*)realCoefAQ31, 393 (q31_t*)realCoefBQ31, 394 &arm_cfft_sR_q31_len1024 395 }; 396 397 const arm_rfft_instance_q31 arm_rfft_sR_q31_len4096 = { 398 4096U, 399 0, 400 1, 401 2U, 402 (q31_t*)realCoefAQ31, 403 (q31_t*)realCoefBQ31, 404 &arm_cfft_sR_q31_len2048 405 }; 406 407 const arm_rfft_instance_q31 arm_rfft_sR_q31_len8192 = { 408 8192U, 409 0, 410 1, 411 1U, 412 (q31_t*)realCoefAQ31, 413 (q31_t*)realCoefBQ31, 414 &arm_cfft_sR_q31_len4096 415 }; 416 417 /* q15_t */ 418 const arm_rfft_instance_q15 arm_rfft_sR_q15_len32 = { 419 32U, 420 0, 421 1, 422 256U, 423 (q15_t*)realCoefAQ15, 424 (q15_t*)realCoefBQ15, 425 &arm_cfft_sR_q15_len16 426 }; 427 428 const arm_rfft_instance_q15 arm_rfft_sR_q15_len64 = { 429 64U, 430 0, 431 1, 432 128U, 433 (q15_t*)realCoefAQ15, 434 (q15_t*)realCoefBQ15, 435 &arm_cfft_sR_q15_len32 436 }; 437 438 const arm_rfft_instance_q15 arm_rfft_sR_q15_len128 = { 439 128U, 440 0, 441 1, 442 64U, 443 (q15_t*)realCoefAQ15, 444 (q15_t*)realCoefBQ15, 445 &arm_cfft_sR_q15_len64 446 }; 447 448 const arm_rfft_instance_q15 arm_rfft_sR_q15_len256 = { 449 256U, 450 0, 451 1, 452 32U, 453 (q15_t*)realCoefAQ15, 454 (q15_t*)realCoefBQ15, 455 &arm_cfft_sR_q15_len128 456 }; 457 458 const arm_rfft_instance_q15 arm_rfft_sR_q15_len512 = { 459 512U, 460 0, 461 1, 462 16U, 463 (q15_t*)realCoefAQ15, 464 (q15_t*)realCoefBQ15, 465 &arm_cfft_sR_q15_len256 466 }; 467 468 const arm_rfft_instance_q15 arm_rfft_sR_q15_len1024 = { 469 1024U, 470 0, 471 1, 472 8U, 473 (q15_t*)realCoefAQ15, 474 (q15_t*)realCoefBQ15, 475 &arm_cfft_sR_q15_len512 476 }; 477 478 const arm_rfft_instance_q15 arm_rfft_sR_q15_len2048 = { 479 2048U, 480 0, 481 1, 482 4U, 483 (q15_t*)realCoefAQ15, 484 (q15_t*)realCoefBQ15, 485 &arm_cfft_sR_q15_len1024 486 }; 487 488 const arm_rfft_instance_q15 arm_rfft_sR_q15_len4096 = { 489 4096U, 490 0, 491 1, 492 2U, 493 (q15_t*)realCoefAQ15, 494 (q15_t*)realCoefBQ15, 495 &arm_cfft_sR_q15_len2048 496 }; 497 498 const arm_rfft_instance_q15 arm_rfft_sR_q15_len8192 = { 499 8192U, 500 0, 501 1, 502 1U, 503 (q15_t*)realCoefAQ15, 504 (q15_t*)realCoefBQ15, 505 &arm_cfft_sR_q15_len4096 506 }; 507 508 #endif /* !defined(ARM_MATH_MVEI) */ 509 510 511
