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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_GCELL_FFT_VCC_H
#define INCLUDED_GCELL_FFT_VCC_H
#include <gr_fft_vcc.h>
class gc_job_manager;
class gcell_fft_vcc;
typedef boost::shared_ptr<gcell_fft_vcc> gcell_fft_vcc_sptr;
gcell_fft_vcc_sptr
gcell_make_fft_vcc(int fft_size, bool forward, const std::vector<float> &window, bool shift=false);
/*!
* \brief Compute forward or reverse FFT. complex vector in / complex vector out.
* \ingroup dft_blk
* \ingroup gcell
*
* Concrete class that uses gcell to offload FFT to SPEs.
*/
class gcell_fft_vcc : public gr_fft_vcc
{
int d_log2_fft_size;
boost::shared_ptr<gc_job_manager> d_mgr;
std::complex<float> *d_twiddle; // twiddle values (16-byte aligned)
boost::shared_ptr<void> d_twiddle_boost; // automatic storage mgmt
friend gcell_fft_vcc_sptr
gcell_make_fft_vcc(int fft_size, bool forward, const std::vector<float> &window, bool shift);
gcell_fft_vcc(int fft_size, bool forward, const std::vector<float> &window, bool shift);
public:
~gcell_fft_vcc();
int work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
};
#endif /* INCLUDED_GCELL_FFT_VCC_H */
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