Imported Upstream version 3.2.2

[debian/gnuradio] / gnuradio-core / src / lib / gengen / gr_moving_average_ss.cc

diff --git a/gnuradio-core/src/lib/gengen/gr_moving_average_ss.cc b/gnuradio-core/src/lib/gengen/gr_moving_average_ss.cc
new file mode 100644 (file)
index 0000000..3ce0175
--- /dev/null
+++ b/gnuradio-core/src/lib/gengen/gr_moving_average_ss.cc
@@ -0,0 +1,93 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2008 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.
+ */
+
+// WARNING: this file is machine generated.  Edits will be over written
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gr_moving_average_ss.h>
+#include <gr_io_signature.h>
+
+gr_moving_average_ss_sptr 
+gr_make_moving_average_ss (int length, short scale, int max_iter)
+{
+  return gr_moving_average_ss_sptr (new gr_moving_average_ss (length, scale, max_iter));
+}
+
+gr_moving_average_ss::gr_moving_average_ss (int length, short scale, int max_iter)
+  : gr_sync_block ("moving_average_ss",
+                  gr_make_io_signature (1, 1, sizeof (short)),
+                  gr_make_io_signature (1, 1, sizeof (short))),
+  d_length(length),
+  d_scale(scale),
+  d_max_iter(max_iter),
+  d_new_length(length),
+  d_new_scale(scale),
+  d_updated(false)
+{
+  set_history(length);
+}
+
+gr_moving_average_ss::~gr_moving_average_ss ()
+{
+}
+
+void
+gr_moving_average_ss::set_length_and_scale(int length, short scale)
+{
+  d_new_length = length;
+  d_new_scale = scale;
+  d_updated = true;
+}
+
+int 
+gr_moving_average_ss::work (int noutput_items,
+             gr_vector_const_void_star &input_items,
+             gr_vector_void_star &output_items)
+{
+  if (d_updated) {
+    d_length = d_new_length;
+    d_scale = d_new_scale;
+    set_history(d_length);
+    d_updated = false;
+    return 0; // history requirements might have changed
+  }
+
+  const short *in = (const short *) input_items[0];
+  short *out = (short *) output_items[0];
+
+  short sum = 0;
+  int num_iter = (noutput_items>d_max_iter) ? d_max_iter : noutput_items;
+  for (int i = 0; i < d_length-1 ; i++) {
+    sum += in[i];
+  }
+
+  for (int i = 0; i < num_iter; i++) {
+    sum += in[i+d_length-1];
+    out[i] = sum * d_scale;
+    sum -= in[i];
+  }
+
+  return num_iter;
+}