1 files changed, 77 insertions, 0 deletions
diff --git a/gr-digital/lib/digital_constellation_decoder_cb.cc b/gr-digital/lib/digital_constellation_decoder_cb.cc
new file mode 100644
index 000000000..4638790f6
--- /dev/null
+++ b/gr-digital/lib/digital_constellation_decoder_cb.cc
@@ -0,0 +1,77 @@
+/* -*- c++ -*- */
+/*
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <digital_constellation_decoder_cb.h>
+#include <digital_constellation.h>
+#include <gr_io_signature.h>
+#include <iostream>
+
+digital_constellation_decoder_cb_sptr
+digital_make_constellation_decoder_cb (digital_constellation_sptr constellation)
+{
+  return gnuradio::get_initial_sptr
+    (new digital_constellation_decoder_cb(constellation));
+}
+
+digital_constellation_decoder_cb::
+digital_constellation_decoder_cb (digital_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));
+}
+
+void
+digital_constellation_decoder_cb::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
+digital_constellation_decoder_cb::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;
+}