From a6e56683cf74054fad6774138bea9f844c76be09 Mon Sep 17 00:00:00 2001
From: Tom Rondeau <trondeau@vt.edu>
Date: Sat, 11 Aug 2012 11:04:03 -0400
Subject: digital: converted over constellation and related blocks.
Possibly still a work-in-progress. Need to convert over some more before QA can be run.
---
gr-digital/lib/constellation_decoder_cb_impl.cc | 84 +++++++++++++++++++++++++
1 file changed, 84 insertions(+)
create mode 100644 gr-digital/lib/constellation_decoder_cb_impl.cc
(limited to 'gr-digital/lib/constellation_decoder_cb_impl.cc')
diff --git a/gr-digital/lib/constellation_decoder_cb_impl.cc b/gr-digital/lib/constellation_decoder_cb_impl.cc
new file mode 100644
index 0000000000..e764ccc629
--- /dev/null
+++ b/gr-digital/lib/constellation_decoder_cb_impl.cc
@@ -0,0 +1,84 @@
+/* -*- 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 */
--
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