doc/doxygen-3.5.1/gr__fft__filter__ccc_8h_source.html

00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 2005 Free Software Foundation, Inc.
00004  *
00005  * This file is part of GNU Radio
00006  *
00007  * GNU Radio is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 3, or (at your option)
00010  * any later version.
00011  *
00012  * GNU Radio is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with GNU Radio; see the file COPYING.  If not, write to
00019  * the Free Software Foundation, Inc., 51 Franklin Street,
00020  * Boston, MA 02110-1301, USA.
00021  */
00022 #ifndef INCLUDED_GR_FFT_FILTER_CCC_H
00023 #define INCLUDED_GR_FFT_FILTER_CCC_H
00024
00025 #include <gr_core_api.h>
00026 #include <gr_sync_decimator.h>
00027
00028 class gr_fft_filter_ccc;
00029 typedef boost::shared_ptr<gr_fft_filter_ccc> gr_fft_filter_ccc_sptr;
00030 GR_CORE_API gr_fft_filter_ccc_sptr gr_make_fft_filter_ccc (int decimation, const std::vector<gr_complex> &taps);
00031
00032 //class gri_fft_filter_ccc_sse;
00033 class gri_fft_filter_ccc_generic;
00034
00035 /*!
00036  * \brief Fast FFT filter with gr_complex input, gr_complex output and gr_complex taps
00037  * \ingroup filter_blk
00038  */
00039 class GR_CORE_API gr_fft_filter_ccc : public gr_sync_decimator
00040 {
00041  private:
00042   friend GR_CORE_API gr_fft_filter_ccc_sptr gr_make_fft_filter_ccc (int decimation, const std::vector<gr_complex> &taps);
00043
00044   int                      d_nsamples;
00045   bool                     d_updated;
00046 #if 1  // don't enable the sse version until handling it is worked out
00047   gri_fft_filter_ccc_generic  *d_filter;
00048 #else
00049   gri_fft_filter_ccc_sse  *d_filter;
00050 #endif
00051   std::vector<gr_complex>  d_new_taps;
00052
00053   /*!
00054    * Construct a FFT filter with the given taps
00055    *
00056    * \param decimation  >= 1
00057    * \param taps        complex filter taps
00058    */
00059   gr_fft_filter_ccc (int decimation, const std::vector<gr_complex> &taps);
00060
00061  public:
00062   ~gr_fft_filter_ccc ();
00063
00064   void set_taps (const std::vector<gr_complex> &taps);
00065   std::vector<gr_complex> taps () const;
00066
00067   int work (int noutput_items,
00068             gr_vector_const_void_star &input_items,
00069             gr_vector_void_star &output_items);
00070 };
00071
00072
00073
00074 #endif /* INCLUDED_GR_FFT_FILTER_CCC_H */