analog: adding noise_source to gr-analog with GRC and QA.

1 files changed, 116 insertions, 0 deletions

diff --git a/gr-analog/lib/noise_source_X_impl.cc.t b/gr-analog/lib/noise_source_X_impl.cc.t
new file mode 100644
index 000000000..35dda9c5d
--- /dev/null
+++ b/gr-analog/lib/noise_source_X_impl.cc.t
@@ -0,0 +1,116 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2010,2012 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.
+ */
+
+/* @WARNING@ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "@IMPL_NAME@.h"
+#include <gr_io_signature.h>
+#include <stdexcept>
+
+namespace gr {
+  namespace analog {
+    
+    @BASE_NAME@::sptr
+    @BASE_NAME@::make(noise_type_t type, float ampl, long seed)
+    {
+      return gnuradio::get_initial_sptr
+	(new @IMPL_NAME@(type, ampl, seed));
+    }
+
+    @IMPL_NAME@::@IMPL_NAME@(noise_type_t type, float ampl, long seed)
+    : gr_sync_block("@BASE_NAME@",
+		    gr_make_io_signature(0, 0, 0),
+		    gr_make_io_signature(1, 1, sizeof(@TYPE@))),
+      d_type(type),
+      d_ampl(ampl),
+      d_rng(seed)
+    {
+    }
+    
+    @IMPL_NAME@::~@IMPL_NAME@()
+    {
+    }
+
+    int
+    @IMPL_NAME@::work(int noutput_items,
+		      gr_vector_const_void_star &input_items,
+		      gr_vector_void_star &output_items)
+    {
+      @TYPE@ *out = (@TYPE@*)output_items[0];
+
+      switch(d_type) {
+#if @IS_COMPLEX@	// complex?
+
+      case GR_UNIFORM:
+	for(int i = 0; i < noutput_items; i++) {
+	  out[i] = gr_complex(d_ampl * ((d_rng.ran1() * 2.0) - 1.0),
+			      d_ampl * ((d_rng.ran1() * 2.0) - 1.0));
+	}
+	break;
+
+      case GR_GAUSSIAN:
+	for(int i = 0; i < noutput_items; i++) {
+	  out[i] = d_ampl * d_rng.rayleigh_complex();
+	}
+	break;
+
+#else			// nope...
+
+      case GR_UNIFORM:
+	for(int i = 0; i < noutput_items; i++) {
+	  out[i] = (@TYPE@)(d_ampl * ((d_rng.ran1() * 2.0) - 1.0));
+	}
+	break;
+
+      case GR_GAUSSIAN:
+	for(int i = 0; i < noutput_items; i++) {
+	  out[i] = (@TYPE@)(d_ampl * d_rng.gasdev());
+	}
+	break;
+
+      case GR_LAPLACIAN:
+	for(int i = 0; i < noutput_items; i++) {
+	  out[i] = (@TYPE@)(d_ampl * d_rng.laplacian());
+	}
+	break;
+
+      case GR_IMPULSE:	// FIXME changeable impulse settings
+	for(int i = 0; i < noutput_items; i++) {
+	  out[i] = (@TYPE@)(d_ampl * d_rng.impulse(9));
+	}
+	break;
+#endif
+
+      default:
+	throw std::runtime_error("invalid type");
+      }
+
+      return noutput_items;
+    }
+
+  } /* namespace analog */
+} /* namespace gr */
+