blocks: added gr::blocks::repeat

3 files changed, 117 insertions, 0 deletions

diff --git a/gr-blocks/lib/CMakeLists.txt b/gr-blocks/lib/CMakeLists.txt
index e4aca48f0..9b0043d4b 100644
--- a/gr-blocks/lib/CMakeLists.txt
+++ b/gr-blocks/lib/CMakeLists.txt
@@ -154,6 +154,7 @@ list(APPEND gr_blocks_sources
     multiply_const_cc_impl.cc
     multiply_const_ff_impl.cc
     nlog10_ff_impl.cc
+    repeat_impl.cc
     short_to_char_impl.cc
     short_to_float_impl.cc
     uchar_array_to_float.cc
diff --git a/gr-blocks/lib/repeat_impl.cc b/gr-blocks/lib/repeat_impl.cc
new file mode 100644
index 000000000..939a33b87
--- /dev/null
+++ b/gr-blocks/lib/repeat_impl.cc
@@ -0,0 +1,69 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 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 "repeat_impl.h"
+#include <gr_io_signature.h>
+
+namespace gr {
+  namespace blocks {
+
+    repeat::sptr repeat::make(size_t itemsize, int interp)
+    {
+      return gnuradio::get_initial_sptr(new repeat_impl(itemsize, interp));
+    }
+
+    repeat_impl::repeat_impl(size_t itemsize, int interp)
+      : gr_sync_interpolator("repeat",
+			     gr_make_io_signature (1, 1, itemsize),
+			     gr_make_io_signature (1, 1, itemsize),
+			     interp),
+	d_itemsize(itemsize),
+	d_interp(interp)
+    {
+    }
+
+    int
+    repeat_impl::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;
+    }
+
+  } /* namespace blocks */
+} /* namespace gr */
diff --git a/gr-blocks/lib/repeat_impl.h b/gr-blocks/lib/repeat_impl.h
new file mode 100644
index 000000000..6451d0d98
--- /dev/null
+++ b/gr-blocks/lib/repeat_impl.h
@@ -0,0 +1,47 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 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.
+ */
+
+#ifndef INCLUDED_REPEAT_IMPL_H
+#define INCLUDED_REPEAT_IMPL_H
+
+#include <blocks/repeat.h>
+
+namespace gr {
+  namespace blocks {
+
+    class BLOCKS_API repeat_impl : public repeat
+    {
+      size_t d_itemsize;
+      int d_interp;
+
+    public:
+      repeat_impl(size_t itemsize, int d_interp);
+
+      int work(int noutput_items,
+	       gr_vector_const_void_star &input_items,
+	       gr_vector_void_star &output_items);
+    };
+
+  } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* INCLUDED_REPEAT_IMPL_H */