73 lines
2.5 KiB
C
73 lines
2.5 KiB
C
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/*
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* Copyright (c) 2022, Shenzhen CVA Innovation CO.,LTD
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* All rights reserved.
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*
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* Shenzhen CVA Innovation CO.,LTD (CVA chip) is supplying this file for use
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* exclusively with CVA's microcontroller products. This file can be freely
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* distributed within development tools that are supporting such microcontroller
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* products.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
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* OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
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* CVA SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL,
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* OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
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*/
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#ifndef _INTERP2D_H_
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#define _INTERP2D_H_
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/*! \brief Contains public interface to various functions related
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* to the 2-D linear interpolation
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*/
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/*******************************************************************************
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* the includes
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******************************************************************************/
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#include "common/iqmath/iqmath.h"
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#include "interp1d.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*******************************************************************************
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* the defines
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******************************************************************************/
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/*******************************************************************************
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* the typedefs
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******************************************************************************/
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/*******************************************************************************
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* the globals
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******************************************************************************/
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/*******************************************************************************
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* the function prototypes
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******************************************************************************/
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/*! \brief This is an 2-D linear interpolate calculation function using the row and column scale as input
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*
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* \param[in] x00 : the x value of (0, 0) point
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* \param[in] x01 : the x value of (0, 1) point
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* \param[in] x10 : the x value of (1, 0) point
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* \param[in] x11 : the x value of (1, 1) point
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* \param[in] rowScale : the scale of row
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* \param[in] columnScale : the scale of column
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* \return the x value of the target point
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*/
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static inline _iq Interp2d(_iq x00, _iq x01, _iq x10, _iq x11, _iq rowScale, _iq columnScale)
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{
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return Interp1d(Interp1d(x00, x10, rowScale),
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Interp1d(x01, x11, rowScale),
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columnScale);
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}
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#ifdef __cplusplus
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}
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#endif /* extern "C" */
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#endif /* _INTERP2D_H_ */
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