volk_32fc_s32f_power_32fc.h

Go to the documentation of this file.

/* -*- c++ -*- */
/*
 * Copyright 2012, 2014 Free Software Foundation, Inc.
 *
 * This file is part of VOLK
 *
 * SPDX-License-Identifier: LGPL-3.0-or-later
 */
 
#ifndef INCLUDED_volk_32fc_s32f_power_32fc_a_H
#define INCLUDED_volk_32fc_s32f_power_32fc_a_H
 
#include <inttypes.h>
#include <math.h>
#include <stdio.h>
 
static inline lv_32fc_t __volk_s32fc_s32f_power_s32fc_a(const lv_32fc_t exp,
                                                        const float power)
{
    const float arg = power * atan2f(lv_creal(exp), lv_cimag(exp));
    const float mag =
        powf(lv_creal(exp) * lv_creal(exp) + lv_cimag(exp) * lv_cimag(exp), power / 2);
    return mag * lv_cmake(-cosf(arg), sinf(arg));
}
 
#ifdef LV_HAVE_GENERIC
 
static inline void volk_32fc_s32f_power_32fc_generic(lv_32fc_t* cVector,
                                                     const lv_32fc_t* aVector,
                                                     const float power,
                                                     unsigned int num_points)
{
    lv_32fc_t* cPtr = cVector;
    const lv_32fc_t* aPtr = aVector;
    unsigned int number = 0;
 
    for (number = 0; number < num_points; number++) {
        *cPtr++ = __volk_s32fc_s32f_power_s32fc_a((*aPtr++), power);
    }
}
 
#endif /* LV_HAVE_GENERIC */
 
 
#endif /* INCLUDED_volk_32fc_s32f_power_32fc_a_H */