428 lines
11 KiB
C
428 lines
11 KiB
C
/******************************************************************************
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* @file support_functions.h
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* @brief Public header file for CMSIS DSP Library
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* @version V1.9.0
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* @date 23 April 2021
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* Target Processor: Cortex-M and Cortex-A cores
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******************************************************************************/
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/*
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* Copyright (c) 2010-2020 Arm Limited or its affiliates. All rights reserved.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an AS IS BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _SUPPORT_FUNCTIONS_H_
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#define _SUPPORT_FUNCTIONS_H_
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#include "arm_math_types.h"
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#include "arm_math_memory.h"
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#include "dsp/none.h"
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#include "dsp/utils.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/**
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* @defgroup groupSupport Support Functions
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*/
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/**
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* @brief Converts the elements of the floating-point vector to Q31 vector.
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* @param[in] pSrc points to the floating-point input vector
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* @param[out] pDst points to the Q31 output vector
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* @param[in] blockSize length of the input vector
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*/
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void arm_float_to_q31(
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const float32_t * pSrc,
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q31_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Converts the elements of the floating-point vector to Q15 vector.
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* @param[in] pSrc points to the floating-point input vector
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* @param[out] pDst points to the Q15 output vector
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* @param[in] blockSize length of the input vector
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*/
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void arm_float_to_q15(
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const float32_t * pSrc,
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q15_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Converts the elements of the floating-point vector to Q7 vector.
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* @param[in] pSrc points to the floating-point input vector
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* @param[out] pDst points to the Q7 output vector
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* @param[in] blockSize length of the input vector
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*/
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void arm_float_to_q7(
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const float32_t * pSrc,
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q7_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Converts the elements of the Q31 vector to floating-point vector.
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* @param[in] pSrc is input pointer
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* @param[out] pDst is output pointer
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* @param[in] blockSize is the number of samples to process
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*/
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void arm_q31_to_float(
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const q31_t * pSrc,
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float32_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Converts the elements of the Q31 vector to Q15 vector.
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* @param[in] pSrc is input pointer
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* @param[out] pDst is output pointer
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* @param[in] blockSize is the number of samples to process
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*/
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void arm_q31_to_q15(
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const q31_t * pSrc,
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q15_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Converts the elements of the Q31 vector to Q7 vector.
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* @param[in] pSrc is input pointer
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* @param[out] pDst is output pointer
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* @param[in] blockSize is the number of samples to process
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*/
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void arm_q31_to_q7(
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const q31_t * pSrc,
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q7_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Converts the elements of the Q15 vector to floating-point vector.
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* @param[in] pSrc is input pointer
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* @param[out] pDst is output pointer
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* @param[in] blockSize is the number of samples to process
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*/
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void arm_q15_to_float(
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const q15_t * pSrc,
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float32_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Converts the elements of the Q15 vector to Q31 vector.
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* @param[in] pSrc is input pointer
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* @param[out] pDst is output pointer
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* @param[in] blockSize is the number of samples to process
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*/
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void arm_q15_to_q31(
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const q15_t * pSrc,
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q31_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Converts the elements of the Q15 vector to Q7 vector.
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* @param[in] pSrc is input pointer
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* @param[out] pDst is output pointer
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* @param[in] blockSize is the number of samples to process
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*/
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void arm_q15_to_q7(
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const q15_t * pSrc,
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q7_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Converts the elements of the Q7 vector to floating-point vector.
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* @param[in] pSrc is input pointer
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* @param[out] pDst is output pointer
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* @param[in] blockSize is the number of samples to process
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*/
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void arm_q7_to_float(
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const q7_t * pSrc,
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float32_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Converts the elements of the Q7 vector to Q31 vector.
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* @param[in] pSrc input pointer
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* @param[out] pDst output pointer
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* @param[in] blockSize number of samples to process
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*/
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void arm_q7_to_q31(
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const q7_t * pSrc,
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q31_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Converts the elements of the Q7 vector to Q15 vector.
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* @param[in] pSrc input pointer
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* @param[out] pDst output pointer
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* @param[in] blockSize number of samples to process
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*/
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void arm_q7_to_q15(
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const q7_t * pSrc,
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q15_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Struct for specifying sorting algorithm
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*/
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typedef enum
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{
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ARM_SORT_BITONIC = 0,
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/**< Bitonic sort */
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ARM_SORT_BUBBLE = 1,
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/**< Bubble sort */
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ARM_SORT_HEAP = 2,
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/**< Heap sort */
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ARM_SORT_INSERTION = 3,
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/**< Insertion sort */
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ARM_SORT_QUICK = 4,
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/**< Quick sort */
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ARM_SORT_SELECTION = 5
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/**< Selection sort */
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} arm_sort_alg;
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/**
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* @brief Struct for specifying sorting algorithm
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*/
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typedef enum
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{
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ARM_SORT_DESCENDING = 0,
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/**< Descending order (9 to 0) */
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ARM_SORT_ASCENDING = 1
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/**< Ascending order (0 to 9) */
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} arm_sort_dir;
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/**
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* @brief Instance structure for the sorting algorithms.
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*/
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typedef struct
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{
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arm_sort_alg alg; /**< Sorting algorithm selected */
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arm_sort_dir dir; /**< Sorting order (direction) */
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} arm_sort_instance_f32;
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/**
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* @param[in] S points to an instance of the sorting structure.
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* @param[in] pSrc points to the block of input data.
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* @param[out] pDst points to the block of output data.
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* @param[in] blockSize number of samples to process.
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*/
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void arm_sort_f32(
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const arm_sort_instance_f32 * S,
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float32_t * pSrc,
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float32_t * pDst,
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uint32_t blockSize);
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/**
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* @param[in,out] S points to an instance of the sorting structure.
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* @param[in] alg Selected algorithm.
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* @param[in] dir Sorting order.
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*/
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void arm_sort_init_f32(
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arm_sort_instance_f32 * S,
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arm_sort_alg alg,
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arm_sort_dir dir);
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/**
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* @brief Instance structure for the sorting algorithms.
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*/
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typedef struct
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{
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arm_sort_dir dir; /**< Sorting order (direction) */
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float32_t * buffer; /**< Working buffer */
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} arm_merge_sort_instance_f32;
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/**
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* @param[in] S points to an instance of the sorting structure.
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* @param[in,out] pSrc points to the block of input data.
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* @param[out] pDst points to the block of output data
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* @param[in] blockSize number of samples to process.
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*/
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void arm_merge_sort_f32(
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const arm_merge_sort_instance_f32 * S,
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float32_t *pSrc,
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float32_t *pDst,
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uint32_t blockSize);
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/**
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* @param[in,out] S points to an instance of the sorting structure.
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* @param[in] dir Sorting order.
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* @param[in] buffer Working buffer.
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*/
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void arm_merge_sort_init_f32(
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arm_merge_sort_instance_f32 * S,
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arm_sort_dir dir,
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float32_t * buffer);
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/**
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* @brief Copies the elements of a floating-point vector.
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* @param[in] pSrc input pointer
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* @param[out] pDst output pointer
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* @param[in] blockSize number of samples to process
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*/
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void arm_copy_f32(
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const float32_t * pSrc,
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float32_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Copies the elements of a Q7 vector.
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* @param[in] pSrc input pointer
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* @param[out] pDst output pointer
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* @param[in] blockSize number of samples to process
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*/
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void arm_copy_q7(
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const q7_t * pSrc,
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q7_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Copies the elements of a Q15 vector.
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* @param[in] pSrc input pointer
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* @param[out] pDst output pointer
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* @param[in] blockSize number of samples to process
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*/
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void arm_copy_q15(
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const q15_t * pSrc,
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q15_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Copies the elements of a Q31 vector.
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* @param[in] pSrc input pointer
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* @param[out] pDst output pointer
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* @param[in] blockSize number of samples to process
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*/
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void arm_copy_q31(
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const q31_t * pSrc,
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q31_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Fills a constant value into a floating-point vector.
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* @param[in] value input value to be filled
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* @param[out] pDst output pointer
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* @param[in] blockSize number of samples to process
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*/
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void arm_fill_f32(
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float32_t value,
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float32_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Fills a constant value into a Q7 vector.
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* @param[in] value input value to be filled
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* @param[out] pDst output pointer
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* @param[in] blockSize number of samples to process
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*/
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void arm_fill_q7(
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q7_t value,
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q7_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Fills a constant value into a Q15 vector.
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* @param[in] value input value to be filled
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* @param[out] pDst output pointer
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* @param[in] blockSize number of samples to process
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*/
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void arm_fill_q15(
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q15_t value,
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q15_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Fills a constant value into a Q31 vector.
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* @param[in] value input value to be filled
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* @param[out] pDst output pointer
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* @param[in] blockSize number of samples to process
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*/
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void arm_fill_q31(
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q31_t value,
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q31_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Weighted sum
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*
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*
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* @param[in] *in Array of input values.
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* @param[in] *weigths Weights
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* @param[in] blockSize Number of samples in the input array.
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* @return Weighted sum
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*
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*/
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float32_t arm_weighted_sum_f32(const float32_t *in
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, const float32_t *weigths
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, uint32_t blockSize);
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/**
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* @brief Barycenter
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*
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*
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* @param[in] in List of vectors
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* @param[in] weights Weights of the vectors
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* @param[out] out Barycenter
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* @param[in] nbVectors Number of vectors
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* @param[in] vecDim Dimension of space (vector dimension)
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* @return None
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*
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*/
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void arm_barycenter_f32(const float32_t *in
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, const float32_t *weights
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, float32_t *out
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, uint32_t nbVectors
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, uint32_t vecDim);
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#ifdef __cplusplus
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}
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#endif
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#endif /* ifndef _SUPPORT_FUNCTIONS_H_ */
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