108 lines
2.9 KiB
C
108 lines
2.9 KiB
C
/******************************************************************************
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* @file interpolation_functions_f16.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 _INTERPOLATION_FUNCTIONS_F16_H_
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#define _INTERPOLATION_FUNCTIONS_F16_H_
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#include "arm_math_types_f16.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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#if defined(ARM_FLOAT16_SUPPORTED)
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typedef struct
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{
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uint32_t nValues; /**< nValues */
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float16_t x1; /**< x1 */
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float16_t xSpacing; /**< xSpacing */
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float16_t *pYData; /**< pointer to the table of Y values */
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} arm_linear_interp_instance_f16;
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/**
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* @brief Instance structure for the floating-point bilinear interpolation function.
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*/
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typedef struct
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{
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uint16_t numRows;/**< number of rows in the data table. */
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uint16_t numCols;/**< number of columns in the data table. */
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float16_t *pData; /**< points to the data table. */
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} arm_bilinear_interp_instance_f16;
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/**
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* @addtogroup LinearInterpolate
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* @{
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*/
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/**
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* @brief Process function for the floating-point Linear Interpolation Function.
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* @param[in,out] S is an instance of the floating-point Linear Interpolation structure
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* @param[in] x input sample to process
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* @return y processed output sample.
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*
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*/
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float16_t arm_linear_interp_f16(
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arm_linear_interp_instance_f16 * S,
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float16_t x);
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/**
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* @} end of LinearInterpolate group
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*/
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/**
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* @addtogroup BilinearInterpolate
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* @{
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*/
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/**
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* @brief Floating-point bilinear interpolation.
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* @param[in,out] S points to an instance of the interpolation structure.
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* @param[in] X interpolation coordinate.
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* @param[in] Y interpolation coordinate.
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* @return out interpolated value.
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*/
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float16_t arm_bilinear_interp_f16(
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const arm_bilinear_interp_instance_f16 * S,
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float16_t X,
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float16_t Y);
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/**
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* @} end of BilinearInterpolate group
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*/
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#endif /*defined(ARM_FLOAT16_SUPPORTED)*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* ifndef _INTERPOLATION_FUNCTIONS_F16_H_ */
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