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/* -*- c++ -*- */
/*
* Copyright 2004,2007,2008 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_GR_FFT_VCC_FFTW_H
#define INCLUDED_GR_FFT_VCC_FFTW_H
#include <gr_core_api.h>
#include <gr_fft_vcc.h>
class gri_fft_complex;
GR_CORE_API gr_fft_vcc_sptr
gr_make_fft_vcc_fftw (int fft_size, bool forward,
const std::vector<float> &window,
bool shift=false, int nthreads=1);
/*!
* \brief Compute forward or reverse FFT. complex vector in / complex vector out.
* \ingroup dft_blk
*
* Concrete class that uses FFTW.
*/
class GR_CORE_API gr_fft_vcc_fftw : public gr_fft_vcc
{
friend GR_CORE_API gr_fft_vcc_sptr
gr_make_fft_vcc_fftw (int fft_size, bool forward,
const std::vector<float> &window,
bool shift, int nthreads);
gri_fft_complex *d_fft;
gr_fft_vcc_fftw (int fft_size, bool forward,
const std::vector<float> &window,
bool shift, int nthreads=1);
public:
~gr_fft_vcc_fftw ();
void set_nthreads(int n);
int nthreads() const;
int work (int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
};
#endif /* INCLUDED_GR_FFT_VCC_FFTW_H */
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