/**
 * \file Ifx_LutSincosF32.h
 * \brief Sin/Cos lookup functions with fixed-point angle data type
 * \ingroup library_srvsw_sysse_math_lut_sincos
 *
 *
 *
 * \version disabled
 * \copyright Copyright (c) 2013 Infineon Technologies AG. All rights reserved.
 *
 *
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 *
 *
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 * terms of use are agreed, use of this file is subject to following:


 * Boost Software License - Version 1.0 - August 17th, 2003

 * Permission is hereby granted, free of charge, to any person or 
 * organization obtaining a copy of the software and accompanying 
 * documentation covered by this license (the "Software") to use, reproduce,
 * display, distribute, execute, and transmit the Software, and to prepare
 * derivative works of the Software, and to permit third-parties to whom the 
 * Software is furnished to do so, all subject to the following:

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 * be included in all copies of the Software, in whole or in part, and all
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 *
 * \defgroup library_srvsw_sysse_math_lut_sincos Sinus and cosinus Look-ups
 * \ingroup library_srvsw_sysse_math_f32_lut
 *
 */

#ifndef IFX_LUTSINCOSF32_H
#define IFX_LUTSINCOSF32_H
//________________________________________________________________________________________

#include "SysSe/Math/Ifx_Cf32.h"
#include "Ifx_Lut.h"
//________________________________________________________________________________________

/**
 * \brief Look-up table for sin(IFX_PI*2*k/IFX_LUT_ANGLE_RESOLUTION),
 * where k = 0..IFX_LUT_ANGLE_RESOLUTION */
IFX_EXTERN IFX_LUT_TABLE float32 Ifx_g_LutSincosF32_table[(IFX_LUT_ANGLE_PI / 2) + 1];

/** \brief Initialise the lookup tables
 * \note This is not required if (\ref IFX_LUT_TABLE_CONST == 1)
 * \ingroup library_srvsw_sysse_math_lut_sincos
 */
IFX_EXTERN void Ifx_LutSincosF32_init(void);

/**
 * \brief Sine lookup function
 * \param fxpAngle 0 .. (IFX_LUT_ANGLE_RESOLUTION - 1)
 * \return sin(2*IFX_PI*fxpAngle/IFX_LUT_ANGLE_RESOLUTION)
 * \ingroup library_srvsw_sysse_math_lut_sincos
 */
IFX_EXTERN float32 Ifx_LutSincosF32_sin(Ifx_Lut_FxpAngle fxpAngle);

/**
 * \brief Cosine lookup function
 * \param fxpAngle 0 .. (IFX_LUT_ANGLE_RESOLUTION - 1), which represents 0 .. 2*IFX_PI
 * \return cos(2*IFX_PI*fxpAngle/IFX_LUT_ANGLE_RESOLUTION)
 * \ingroup library_srvsw_sysse_math_lut_sincos
 */
IFX_INLINE float32 Ifx_LutSincosF32_cos(Ifx_Lut_FxpAngle fxpAngle)
{
    return Ifx_LutSincosF32_sin((IFX_LUT_ANGLE_PI / 2) - fxpAngle);
}


/**
 * \brief Sine and Cosine lookup function
 * \param fxpAngle 0 .. (IFX_LUT_ANGLE_RESOLUTION - 1), which represents 0 .. 2*IFX_PI
 * \retval real = cos(2*IFX_PI*fxpAngle/IFX_LUT_ANGLE_RESOLUTION)
 * \retval imag = sin(2*IFX_PI*fxpAngle/IFX_LUT_ANGLE_RESOLUTION)
 * \ingroup library_srvsw_sysse_math_lut_sincos
 */
IFX_INLINE cfloat32 Ifx_LutSincosF32_cossin(Ifx_Lut_FxpAngle fxpAngle)
{
    cfloat32 result;
    result.imag = Ifx_LutSincosF32_sin(fxpAngle);
    result.real = Ifx_LutSincosF32_sin((IFX_LUT_ANGLE_PI / 2) - fxpAngle);
    return result;
}


//________________________________________________________________________________________
#endif
