blocks: added gr::blocks::conjugate_cc

3 files changed, 113 insertions, 0 deletions

diff --git a/gr-blocks/lib/CMakeLists.txt b/gr-blocks/lib/CMakeLists.txt
index 6974e7e92..8d433801d 100644
--- a/gr-blocks/lib/CMakeLists.txt
+++ b/gr-blocks/lib/CMakeLists.txt
@@ -127,6 +127,7 @@ list(APPEND gr_blocks_sources
     complex_to_mag_impl.cc
     complex_to_mag_squared_impl.cc
     complex_to_arg_impl.cc
+    conjugate_cc_impl.cc
     float_to_char_impl.cc
     float_to_complex_impl.cc
     float_array_to_int.cc
diff --git a/gr-blocks/lib/conjugate_cc_impl.cc b/gr-blocks/lib/conjugate_cc_impl.cc
new file mode 100644
index 000000000..3d46bef68
--- /dev/null
+++ b/gr-blocks/lib/conjugate_cc_impl.cc
@@ -0,0 +1,68 @@
+/* -*- 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 "conjugate_cc_impl.h"
+#include <gr_io_signature.h>
+#include <volk/volk.h>
+
+namespace gr {
+  namespace blocks {
+
+    conjugate_cc::sptr conjugate_cc::make()
+    {
+      return gnuradio::get_initial_sptr(new conjugate_cc_impl());
+    }
+
+    conjugate_cc_impl::conjugate_cc_impl()
+      : gr_sync_block("conjugate_cc",
+		      gr_make_io_signature (1, 1, sizeof(gr_complex)),
+		      gr_make_io_signature (1, 1, sizeof(gr_complex)))
+    {
+      const int alignment_multiple =
+	volk_get_alignment() / sizeof(gr_complex);
+      set_alignment(std::max(1, alignment_multiple));
+    }
+
+    int
+    conjugate_cc_impl::work(int noutput_items,
+			    gr_vector_const_void_star &input_items,
+			    gr_vector_void_star &output_items)
+    {
+      gr_complex *iptr = (gr_complex *) input_items[0];
+      gr_complex *optr = (gr_complex *) output_items[0];
+      
+      if(is_unaligned()) {
+	volk_32fc_conjugate_32fc_u(optr, iptr, noutput_items);
+      }
+      else {
+	volk_32fc_conjugate_32fc_a(optr, iptr, noutput_items);
+      }
+      
+      return noutput_items;
+    }
+
+  } /* namespace blocks */
+}/* namespace gr */
diff --git a/gr-blocks/lib/conjugate_cc_impl.h b/gr-blocks/lib/conjugate_cc_impl.h
new file mode 100644
index 000000000..448e7b318
--- /dev/null
+++ b/gr-blocks/lib/conjugate_cc_impl.h
@@ -0,0 +1,44 @@
+/* -*- 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_CONJUGATE_CC_IMPL_H
+#define INCLUDED_CONJUGATE_CC_IMPL_H
+
+#include <blocks/conjugate_cc.h>
+
+namespace gr {
+  namespace blocks {
+
+    class BLOCKS_API conjugate_cc_impl : public conjugate_cc
+    {
+    public:
+      conjugate_cc_impl();
+
+      int work(int noutput_items,
+	       gr_vector_const_void_star &input_items,
+	       gr_vector_void_star &output_items);
+    };
+
+  } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* INCLUDED_CONJUGATE_CC_IMPL_H */