/* -*- c++ -*- */ /* * Copyright 2011,2012 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. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "constellation_decoder_cb_impl.h" #include <gr_io_signature.h> namespace gr { namespace digital { constellation_decoder_cb::sptr constellation_decoder_cb::make(constellation_sptr constellation) { return gnuradio::get_initial_sptr (new constellation_decoder_cb_impl(constellation)); } constellation_decoder_cb_impl:: constellation_decoder_cb_impl(constellation_sptr constellation) : gr_block("constellation_decoder_cb", gr_make_io_signature(1, 1, sizeof(gr_complex)), gr_make_io_signature(1, 1, sizeof(unsigned char))), d_constellation(constellation), d_dim(constellation->dimensionality()) { set_relative_rate(1.0 / ((double)d_dim)); } constellation_decoder_cb_impl::~constellation_decoder_cb_impl() { } void constellation_decoder_cb_impl::forecast(int noutput_items, gr_vector_int &ninput_items_required) { unsigned int input_required = noutput_items * d_dim; unsigned ninputs = ninput_items_required.size(); for(unsigned int i = 0; i < ninputs; i++) ninput_items_required[i] = input_required; } int constellation_decoder_cb_impl::general_work(int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items) { gr_complex const *in = (const gr_complex*)input_items[0]; unsigned char *out = (unsigned char*)output_items[0]; for(int i = 0; i < noutput_items; i++) { out[i] = d_constellation->decision_maker(&(in[i*d_dim])); } consume_each(noutput_items * d_dim); return noutput_items; } } /* namespace digital */ } /* namespace gr */