Imported Upstream version 3.2.2

[debian/gnuradio] / gnuradio-core / src / lib / general / gr_repeat.cc

diff --git a/gnuradio-core/src/lib/general/gr_repeat.cc b/gnuradio-core/src/lib/general/gr_repeat.cc
new file mode 100644 (file)
index 0000000..70bb44e
--- /dev/null
+++ b/gnuradio-core/src/lib/general/gr_repeat.cc
@@ -0,0 +1,69 @@
+/* -*- 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gr_repeat.h>
+#include <gr_io_signature.h>
+#include <string.h>
+
+gr_repeat_sptr 
+gr_make_repeat(size_t itemsize, int interp)
+{
+  return gr_repeat_sptr(new gr_repeat(itemsize, interp));
+}
+
+gr_repeat::gr_repeat(size_t itemsize, int interp)  
+  : gr_sync_interpolator("extend",
+                        gr_make_io_signature(1, 1, itemsize),
+                        gr_make_io_signature(1, 1, itemsize),
+                        interp),
+    d_interp(interp),
+    d_itemsize(itemsize)
+{
+}
+
+gr_repeat::~gr_repeat()
+{
+}
+
+int 
+gr_repeat::work(int noutput_items,
+                 gr_vector_const_void_star &input_items,
+                 gr_vector_void_star &output_items)
+{
+  const char *in = (const char *) input_items[0];
+  char *out = (char *)output_items[0];
+
+  for (int i = 0; i < noutput_items/d_interp; i++) {
+    for (int j = 0; j < d_interp; j++) {
+      memcpy(out, in, d_itemsize);
+      out += d_itemsize;
+    }
+
+    in += d_itemsize;
+  }
+
+  return noutput_items;
+}