1 /****************************************************************************** 2 * @file support_functions_f16.h 3 * @brief Public header file for CMSIS DSP Library 4 * @version V1.9.0 5 * @date 23 April 2021 6 * Target Processor: Cortex-M and Cortex-A cores 7 ******************************************************************************/ 8 /* 9 * Copyright (c) 2010-2020 Arm Limited or its affiliates. All rights reserved. 10 * 11 * SPDX-License-Identifier: Apache-2.0 12 * 13 * Licensed under the Apache License, Version 2.0 (the License); you may 14 * not use this file except in compliance with the License. 15 * You may obtain a copy of the License at 16 * 17 * www.apache.org/licenses/LICENSE-2.0 18 * 19 * Unless required by applicable law or agreed to in writing, software 20 * distributed under the License is distributed on an AS IS BASIS, WITHOUT 21 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 22 * See the License for the specific language governing permissions and 23 * limitations under the License. 24 */ 25 26 27 #ifndef _SUPPORT_FUNCTIONS_F16_H_ 28 #define _SUPPORT_FUNCTIONS_F16_H_ 29 30 #include "arm_math_types_f16.h" 31 #include "arm_math_memory.h" 32 33 #include "dsp/none.h" 34 #include "dsp/utils.h" 35 36 #ifdef __cplusplus 37 extern "C" 38 { 39 #endif 40 41 #if defined(ARM_FLOAT16_SUPPORTED) 42 43 /** 44 * @brief Copies the elements of a floating-point vector. 45 * @param[in] pSrc input pointer 46 * @param[out] pDst output pointer 47 * @param[in] blockSize number of samples to process 48 */ 49 void arm_copy_f16(const float16_t * pSrc, float16_t * pDst, uint32_t blockSize); 50 51 /** 52 * @brief Fills a constant value into a floating-point vector. 53 * @param[in] value input value to be filled 54 * @param[out] pDst output pointer 55 * @param[in] blockSize number of samples to process 56 */ 57 void arm_fill_f16(float16_t value, float16_t * pDst, uint32_t blockSize); 58 59 /** 60 * @brief Converts the elements of the floating-point vector to Q31 vector. 61 * @param[in] pSrc points to the f16 input vector 62 * @param[out] pDst points to the q15 output vector 63 * @param[in] blockSize length of the input vector 64 */ 65 void arm_f16_to_q15(const float16_t * pSrc, q15_t * pDst, uint32_t blockSize); 66 67 /** 68 * @brief Converts the elements of the floating-point vector to Q31 vector. 69 * @param[in] pSrc points to the q15 input vector 70 * @param[out] pDst points to the f16 output vector 71 * @param[in] blockSize length of the input vector 72 */ 73 void arm_q15_to_f16(const q15_t * pSrc, float16_t * pDst, uint32_t blockSize); 74 75 76 /** 77 * @brief Converts the elements of the floating-point vector to Q31 vector. 78 * @param[in] pSrc points to the f32 input vector 79 * @param[out] pDst points to the f16 output vector 80 * @param[in] blockSize length of the input vector 81 */ 82 void arm_float_to_f16(const float32_t * pSrc, float16_t * pDst, uint32_t blockSize); 83 84 /** 85 * @brief Converts the elements of the floating-point vector to Q31 vector. 86 * @param[in] pSrc points to the f16 input vector 87 * @param[out] pDst points to the f32 output vector 88 * @param[in] blockSize length of the input vector 89 */ 90 void arm_f16_to_float(const float16_t * pSrc, float32_t * pDst, uint32_t blockSize); 91 92 /** 93 * @brief Weighted sum 94 * 95 * 96 * @param[in] *in Array of input values. 97 * @param[in] *weigths Weights 98 * @param[in] blockSize Number of samples in the input array. 99 * @return Weighted sum 100 * 101 */ 102 float16_t arm_weighted_sum_f16(const float16_t *in 103 , const float16_t *weigths 104 , uint32_t blockSize); 105 106 /** 107 * @brief Barycenter 108 * 109 * 110 * @param[in] in List of vectors 111 * @param[in] weights Weights of the vectors 112 * @param[out] out Barycenter 113 * @param[in] nbVectors Number of vectors 114 * @param[in] vecDim Dimension of space (vector dimension) 115 * @return None 116 * 117 */ 118 void arm_barycenter_f16(const float16_t *in 119 , const float16_t *weights 120 , float16_t *out 121 , uint32_t nbVectors 122 , uint32_t vecDim); 123 124 #endif /*defined(ARM_FLOAT16_SUPPORTED)*/ 125 #ifdef __cplusplus 126 } 127 #endif 128 129 #endif /* ifndef _SUPPORT_FUNCTIONS_F16_H_ */ 130
