From 5d69a524f81f234b3fbc41d49ba18d6f6886baba Mon Sep 17 00:00:00 2001
From: jcorgan <jcorgan@221aa14e-8319-0410-a670-987f0aec2ac5>
Date: Thu, 3 Aug 2006 04:51:51 +0000
Subject: Houston, we have a trunk.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3122 221aa14e-8319-0410-a670-987f0aec2ac5
---
gnuradio-core/src/lib/general/gr_interleave.cc | 77 ++++++++++++++++++++++++++
1 file changed, 77 insertions(+)
create mode 100644 gnuradio-core/src/lib/general/gr_interleave.cc
(limited to 'gnuradio-core/src/lib/general/gr_interleave.cc')
diff --git a/gnuradio-core/src/lib/general/gr_interleave.cc b/gnuradio-core/src/lib/general/gr_interleave.cc
new file mode 100644
index 0000000000..cae0cd9dc1
--- /dev/null
+++ b/gnuradio-core/src/lib/general/gr_interleave.cc
@@ -0,0 +1,77 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004 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 2, 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gr_interleave.h>
+#include <gr_io_signature.h>
+#include <string.h>
+
+
+gr_interleave_sptr
+gr_make_interleave (size_t itemsize)
+{
+ return gr_interleave_sptr (new gr_interleave (itemsize));
+}
+
+gr_interleave::gr_interleave (size_t itemsize)
+ : gr_sync_interpolator ("interleave",
+ gr_make_io_signature (1, gr_io_signature::IO_INFINITE, itemsize),
+ gr_make_io_signature (1, 1, itemsize),
+ 1),
+ d_itemsize (itemsize)
+{
+}
+
+gr_interleave::~gr_interleave ()
+{
+ // NOP
+}
+
+bool
+gr_interleave::check_topology (int ninputs, int noutputs)
+{
+ set_interpolation (ninputs);
+ return true;
+}
+
+int
+gr_interleave::work (int noutput_items,
+ gr_vector_const_void_star &input_items,
+ gr_vector_void_star &output_items)
+{
+ size_t nchan = input_items.size ();
+ size_t itemsize = d_itemsize;
+ const char **in = (const char **) &input_items[0];
+ char *out = (char *) output_items[0];
+
+ for (int i = 0; i < noutput_items; i += nchan){
+ for (unsigned int n = 0; n < nchan; n++){
+ memcpy (out, in[n], itemsize);
+ out += itemsize;
+ in[n] += itemsize;
+ }
+ }
+ return noutput_items;
+}
--
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