GNU Radio 3.4.0 C++ API
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00001 /* -*- c++ -*- */ 00002 /* 00003 * Copyright 2002 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_FIR_FCC_SIMD_H 00023 #define INCLUDED_GR_FIR_FCC_SIMD_H 00024 00025 #include <gr_fir_fcc_generic.h> 00026 00027 00028 /*! 00029 * \brief common base class for SIMD versions of gr_fir_fcc 00030 * \ingroup filter_primitive 00031 * 00032 * This base class handles alignment issues common to SSE and 3DNOW 00033 * subclasses. 00034 */ 00035 00036 class gr_fir_fcc_simd : public gr_fir_fcc_generic 00037 { 00038 protected: 00039 typedef void (*fcomplex_dotprod_t)(const float *input, 00040 const float *taps, 00041 unsigned n_2_complex_blocks, 00042 float *result); 00043 00044 /*! 00045 * \p aligned_taps holds 4 copies of the coefficients preshifted 00046 * by 0, 1, 2, or 3 float pairs to meet all possible input data alignments. 00047 * This allows us to always fetch data and taps that are 128-bit aligned. 00048 */ 00049 float *d_aligned_taps[4]; 00050 00051 fcomplex_dotprod_t d_fcomplex_dotprod; // fast dot product primitive 00052 00053 public: 00054 00055 // CREATORS 00056 gr_fir_fcc_simd (); 00057 gr_fir_fcc_simd (const std::vector<gr_complex> &taps); 00058 ~gr_fir_fcc_simd (); 00059 00060 // MANIPULATORS 00061 virtual void set_taps (const std::vector<gr_complex> &taps); 00062 virtual gr_complex filter (const float input[]); 00063 }; 00064 00065 #endif