1 files changed, 84 insertions, 0 deletions
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
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+++ 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 */