MCUXpresso_LPC55S69/CMSIS/DSP/Include/dsp/support_functions_f16.h
2022-08-23 23:05:58 +08:00

130 lines
4.1 KiB
C

/******************************************************************************
* @file support_functions_f16.h
* @brief Public header file for CMSIS DSP Library
* @version V1.9.0
* @date 23 April 2021
* Target Processor: Cortex-M and Cortex-A cores
******************************************************************************/
/*
* Copyright (c) 2010-2020 Arm Limited or its affiliates. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _SUPPORT_FUNCTIONS_F16_H_
#define _SUPPORT_FUNCTIONS_F16_H_
#include "arm_math_types_f16.h"
#include "arm_math_memory.h"
#include "dsp/none.h"
#include "dsp/utils.h"
#ifdef __cplusplus
extern "C"
{
#endif
#if defined(ARM_FLOAT16_SUPPORTED)
/**
* @brief Copies the elements of a floating-point vector.
* @param[in] pSrc input pointer
* @param[out] pDst output pointer
* @param[in] blockSize number of samples to process
*/
void arm_copy_f16(const float16_t * pSrc, float16_t * pDst, uint32_t blockSize);
/**
* @brief Fills a constant value into a floating-point vector.
* @param[in] value input value to be filled
* @param[out] pDst output pointer
* @param[in] blockSize number of samples to process
*/
void arm_fill_f16(float16_t value, float16_t * pDst, uint32_t blockSize);
/**
* @brief Converts the elements of the floating-point vector to Q31 vector.
* @param[in] pSrc points to the f16 input vector
* @param[out] pDst points to the q15 output vector
* @param[in] blockSize length of the input vector
*/
void arm_f16_to_q15(const float16_t * pSrc, q15_t * pDst, uint32_t blockSize);
/**
* @brief Converts the elements of the floating-point vector to Q31 vector.
* @param[in] pSrc points to the q15 input vector
* @param[out] pDst points to the f16 output vector
* @param[in] blockSize length of the input vector
*/
void arm_q15_to_f16(const q15_t * pSrc, float16_t * pDst, uint32_t blockSize);
/**
* @brief Converts the elements of the floating-point vector to Q31 vector.
* @param[in] pSrc points to the f32 input vector
* @param[out] pDst points to the f16 output vector
* @param[in] blockSize length of the input vector
*/
void arm_float_to_f16(const float32_t * pSrc, float16_t * pDst, uint32_t blockSize);
/**
* @brief Converts the elements of the floating-point vector to Q31 vector.
* @param[in] pSrc points to the f16 input vector
* @param[out] pDst points to the f32 output vector
* @param[in] blockSize length of the input vector
*/
void arm_f16_to_float(const float16_t * pSrc, float32_t * pDst, uint32_t blockSize);
/**
* @brief Weighted sum
*
*
* @param[in] *in Array of input values.
* @param[in] *weigths Weights
* @param[in] blockSize Number of samples in the input array.
* @return Weighted sum
*
*/
float16_t arm_weighted_sum_f16(const float16_t *in
, const float16_t *weigths
, uint32_t blockSize);
/**
* @brief Barycenter
*
*
* @param[in] in List of vectors
* @param[in] weights Weights of the vectors
* @param[out] out Barycenter
* @param[in] nbVectors Number of vectors
* @param[in] vecDim Dimension of space (vector dimension)
* @return None
*
*/
void arm_barycenter_f16(const float16_t *in
, const float16_t *weights
, float16_t *out
, uint32_t nbVectors
, uint32_t vecDim);
#endif /*defined(ARM_FLOAT16_SUPPORTED)*/
#ifdef __cplusplus
}
#endif
#endif /* ifndef _SUPPORT_FUNCTIONS_F16_H_ */