Imported Upstream version 3.2.2

[debian/gnuradio] / gnuradio-core / src / lib / general / gr_glfsr_source_f.h

diff --git a/gnuradio-core/src/lib/general/gr_glfsr_source_f.h b/gnuradio-core/src/lib/general/gr_glfsr_source_f.h
new file mode 100644 (file)
index 0000000..0079708
--- /dev/null
+++ b/gnuradio-core/src/lib/general/gr_glfsr_source_f.h
@@ -0,0 +1,65 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2007 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_GR_GLFSR_SOURCE_F_H
+#define INCLUDED_GR_GLFSR_SOURCE_F_H
+
+#include <gr_sync_block.h>
+
+class gri_glfsr;
+
+class gr_glfsr_source_f;
+typedef boost::shared_ptr<gr_glfsr_source_f> gr_glfsr_source_f_sptr;
+
+gr_glfsr_source_f_sptr gr_make_glfsr_source_f(int degree, bool repeat=true, int mask=0, int seed=1);
+
+/*!
+ * \brief Galois LFSR pseudo-random source generating float outputs -1.0 - 1.0
+ * \ingroup source_blk
+ */
+class gr_glfsr_source_f : public gr_sync_block 
+{
+ private:
+  friend gr_glfsr_source_f_sptr
+  gr_make_glfsr_source_f(int degree, bool repeat, int mask, int seed);
+  
+  gri_glfsr *d_glfsr;
+
+  bool d_repeat;
+  unsigned int d_index;
+  unsigned int d_length;
+  
+  gr_glfsr_source_f(int degree, bool repeat, int mask, int seed);
+
+ public:
+
+  ~gr_glfsr_source_f();
+
+  int work(int noutput_items,
+          gr_vector_const_void_star &input_items,
+          gr_vector_void_star &output_items);
+
+  unsigned int period() const { return d_length; }
+  int mask() const;
+};
+
+#endif /* INCLUDED_GR_GLFSR_SOURCE_F_H */