From 2065177207d9f504fdcd374ed6567379c51c7a06 Mon Sep 17 00:00:00 2001
From: Johnathan Corgan <jcorgan@corganenterprises.com>
Date: Tue, 4 Sep 2012 15:38:17 -0700
Subject: blocks: added gr::blocks::streams_to_stream
---
gr-blocks/lib/streams_to_stream_impl.cc | 72 +++++++++++++++++++++++++++++++++
1 file changed, 72 insertions(+)
create mode 100644 gr-blocks/lib/streams_to_stream_impl.cc
(limited to 'gr-blocks/lib/streams_to_stream_impl.cc')
diff --git a/gr-blocks/lib/streams_to_stream_impl.cc b/gr-blocks/lib/streams_to_stream_impl.cc
new file mode 100644
index 0000000000..09c593e815
--- /dev/null
+++ b/gr-blocks/lib/streams_to_stream_impl.cc
@@ -0,0 +1,72 @@
+/* -*- 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 "streams_to_stream_impl.h"
+#include <gr_io_signature.h>
+
+namespace gr {
+ namespace blocks {
+
+ streams_to_stream::sptr streams_to_stream::make(size_t itemsize, size_t nstreams)
+ {
+ return gnuradio::get_initial_sptr(new streams_to_stream_impl(itemsize, nstreams));
+ }
+
+ streams_to_stream_impl::streams_to_stream_impl(size_t itemsize, size_t nstreams)
+ : gr_sync_interpolator ("streams_to_stream",
+ gr_make_io_signature (nstreams, nstreams, itemsize),
+ gr_make_io_signature (1, 1, itemsize),
+ nstreams)
+ {
+ }
+
+ int
+ streams_to_stream_impl::work(int noutput_items,
+ gr_vector_const_void_star &input_items,
+ gr_vector_void_star &output_items)
+ {
+ size_t itemsize = output_signature()->sizeof_stream_item (0);
+
+ const char **inv = (const char **) &input_items[0];
+ char *out = (char *) output_items[0];
+ int nstreams = input_items.size();
+
+ assert (noutput_items % nstreams == 0);
+ int ni = noutput_items / nstreams;
+
+ for (int i = 0; i < ni; i++){
+ for (int j = 0; j < nstreams; j++){
+ memcpy(out, inv[j], itemsize);
+ out += itemsize;
+ inv[j] += itemsize;
+ }
+ }
+
+ return noutput_items;
+ }
+
+ } /* namespace blocks */
+} /* namespace gr */
--
cgit v1.2.3