/* -*- c++ -*- */

/*

 * Copyright 2010 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_PFB_SYNTHESIS_FILTERBANK_CCF_H

#define        INCLUDED_GR_PFB_SYNTHESIS_FILTERBANK_CCF_H

#include <gr_sync_interpolator.h>

#include <gri_fir_filter_with_buffer_ccf.h>

class gr_pfb_synthesis_filterbank_ccf;

typedef boost::shared_ptr<gr_pfb_synthesis_filterbank_ccf> gr_pfb_synthesis_filterbank_ccf_sptr;

gr_pfb_synthesis_filterbank_ccf_sptr gr_make_pfb_synthesis_filterbank_ccf 

    (unsigned int numchans, const std::vector<float> &taps);

class gri_fft_complex;

/*!

 * \class gr_pfb_synthesis_filterbank_ccf

 *

 * \brief Polyphase synthesis filterbank with 

 *        gr_complex input, gr_complex output and float taps

 *

 * \ingroup filter_blk

 * \ingroup pfb_blk

 */

class gr_pfb_synthesis_filterbank_ccf : public gr_sync_interpolator

{

 private:

  /*!

   * Build the polyphase synthesis filterbank.

   * \param numchans (unsigned integer) Specifies the number of 

                     channels <EM>M</EM>

   * \param taps    (vector/list of floats) The prototype filter to

                    populate the filterbank.

   */

  friend gr_pfb_synthesis_filterbank_ccf_sptr gr_make_pfb_synthesis_filterbank_ccf 

      (unsigned int numchans, const std::vector<float> &taps);

  bool                           d_updated;

  unsigned int             d_numchans;

  unsigned int             d_taps_per_filter;

  gri_fft_complex         *d_fft;

  std::vector< gri_fir_filter_with_buffer_ccf*> d_filters;

  std::vector< std::vector<float> > d_taps;

  /*!

   * Build the polyphase synthesis filterbank.

   * \param numchans (unsigned integer) Specifies the number of

                     channels <EM>M</EM>

   * \param taps    (vector/list of floats) The prototype filter

                    to populate the filterbank.

   */

  gr_pfb_synthesis_filterbank_ccf (unsigned int numchans, 

                                   const std::vector<float> &taps);

public:

  ~gr_pfb_synthesis_filterbank_ccf ();

  /*!

   * Resets the filterbank's filter taps with the new prototype filter

   * \param taps    (vector/list of floats) The prototype filter to

                    populate the filterbank.

   */

  void set_taps (const std::vector<float> &taps);

  /*!

   * Print all of the filterbank taps to screen.

   */

  void print_taps();

  int work (int noutput_items,

            gr_vector_const_void_star &input_items,

            gr_vector_void_star &output_items);

};

#endif