diff options
Diffstat (limited to 'gnuradio-core/src/lib/general/gr_transcendental.cc')
-rw-r--r-- | gnuradio-core/src/lib/general/gr_transcendental.cc | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/gnuradio-core/src/lib/general/gr_transcendental.cc b/gnuradio-core/src/lib/general/gr_transcendental.cc deleted file mode 100644 index c1482491ba..0000000000 --- a/gnuradio-core/src/lib/general/gr_transcendental.cc +++ /dev/null @@ -1,153 +0,0 @@ -/* - * Copyright 2011 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. - */ - -#include <gr_transcendental.h> -#include <gr_io_signature.h> -#include <stdexcept> -#include <complex> //complex math -#include <cmath> //real math -#include <map> - -/*********************************************************************** - * work function creation and registration - **********************************************************************/ -typedef int(*work_fcn_type)(int, gr_vector_const_void_star &, gr_vector_void_star &); -struct map_val_type{ - work_fcn_type work_fcn; - size_t io_size; -}; -typedef std::map<std::string, map_val_type> map_type; - -//construct map on first use idiom -static map_type &get_map(void){ - static map_type map; - return map; -} - -//static initialization of this object registers a function -struct gr_transcendental_registrant{ - gr_transcendental_registrant( - const std::string &key, - const work_fcn_type &work_fcn, - const size_t io_size - ){ - map_val_type val; - val.work_fcn = work_fcn; - val.io_size = io_size; - get_map()[key] = val; - } -}; - -//macro to create a work function and register it -#define REGISTER_FUNCTION(__fcn__, __type__, __key__) \ - static int __key__ ## _work( \ - int noutput_items, \ - gr_vector_const_void_star &input_items, \ - gr_vector_void_star &output_items \ - ){ \ - const __type__ *in = (const __type__ *) input_items[0]; \ - __type__ *out = (__type__ *) output_items[0]; \ - for (size_t i = 0; i < size_t(noutput_items); i++){ \ - out[i] = std::__fcn__(in[i]); \ - } \ - return noutput_items; \ - } \ - gr_transcendental_registrant __key__ ## _registrant(#__key__, &__key__ ## _work, sizeof(__type__)); - -//register work functions for real types -#define REGISTER_REAL_FUNCTIONS(__fcn__) \ - REGISTER_FUNCTION(__fcn__, float, __fcn__ ## _float) \ - REGISTER_FUNCTION(__fcn__, double, __fcn__ ## _double) - -//register work functions for complex types -#define REGISTER_COMPLEX_FUNCTIONS(__fcn__) \ - REGISTER_FUNCTION(__fcn__, std::complex<float>, __fcn__ ## _complex_float) \ - REGISTER_FUNCTION(__fcn__, std::complex<double>, __fcn__ ## _complex_double) - -//register both complex and real -#define REGISTER_FUNCTIONS(__fcn__) \ - REGISTER_REAL_FUNCTIONS(__fcn__) \ - REGISTER_COMPLEX_FUNCTIONS(__fcn__) - -//create and register transcendental work functions -REGISTER_FUNCTIONS(cos) -REGISTER_FUNCTIONS(sin) -REGISTER_FUNCTIONS(tan) -REGISTER_REAL_FUNCTIONS(acos) -REGISTER_REAL_FUNCTIONS(asin) -REGISTER_REAL_FUNCTIONS(atan) -REGISTER_FUNCTIONS(cosh) -REGISTER_FUNCTIONS(sinh) -REGISTER_FUNCTIONS(tanh) -REGISTER_FUNCTIONS(exp) -REGISTER_FUNCTIONS(log) -REGISTER_FUNCTIONS(log10) -REGISTER_FUNCTIONS(sqrt) - -/*********************************************************************** - * implementation block simply calls into the function pointer - **********************************************************************/ -class gr_transcendental_impl : public gr_transcendental{ -public: - gr_transcendental_impl( - const work_fcn_type &work_fcn, const size_t io_size - ): - gr_sync_block( - "transcendental", - gr_make_io_signature(1, 1, io_size), - gr_make_io_signature(1, 1, io_size) - ), - _work_fcn(work_fcn) - { - // NOP - } - - int work( - int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items - ){ - return _work_fcn(noutput_items, input_items, output_items); - } - -private: - const work_fcn_type &_work_fcn; -}; - -/*********************************************************************** - * factory function to make transcendental block - **********************************************************************/ -gr_transcendental::sptr gr_make_transcendental( - const std::string &name, - const std::string &type -){ - //search for an entry in the map - const std::string key = name + "_" + type; - const bool has_key = get_map().count(key) != 0; - if (!has_key) throw std::runtime_error( - "could not find transcendental function for " + key - ); - - //make a new block with found work function - return gr_transcendental::sptr(new gr_transcendental_impl( - get_map()[key].work_fcn, get_map()[key].io_size - )); -} |