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

/*

 * Copyright 2002 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_FIR_CCC_SIMD_H

#define INCLUDED_GR_FIR_CCC_SIMD_H

#include <gr_core_api.h>

#include <gr_fir_ccc_generic.h>

/*!

 * \brief common base class for SIMD versions of gr_fir_ccc

 * \ingroup filter_primitive

 *

 * This base class handles alignment issues common to SSE and 3DNOW

 * subclasses.

 */

class GR_CORE_API gr_fir_ccc_simd : public gr_fir_ccc_generic

{

protected:

  typedef void (*ccomplex_dotprod_t)(const float *input,

                                     const float *taps,

                                     unsigned n_2_ccomplex_blocks,

                                     float *result);

  /*!

   * \p aligned_taps holds 4 copies of the coefficients preshifted

   * by 0, 1, 2, or 3 floats to meet all possible input data alignments.

   * This allows us to always fetch data and taps that are 128-bit aligned.

   */

  float                 *d_aligned_taps[4];

  ccomplex_dotprod_t        d_ccomplex_dotprod;         // fast dot product primitive

public:

  // CREATORS

  gr_fir_ccc_simd ();

  gr_fir_ccc_simd (const std::vector<gr_complex> &taps);

  ~gr_fir_ccc_simd ();

  // MANIPULATORS

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

  virtual gr_complex filter (const gr_complex input[]);

};

#endif