Imported Upstream version 3.2.2

[debian/gnuradio] / gnuradio-core / src / lib / gengen / gr_noise_source_c.cc

diff --git a/gnuradio-core/src/lib/gengen/gr_noise_source_c.cc b/gnuradio-core/src/lib/gengen/gr_noise_source_c.cc
new file mode 100644 (file)
index 0000000..04ab4d7
--- /dev/null
+++ b/gnuradio-core/src/lib/gengen/gr_noise_source_c.cc
@@ -0,0 +1,99 @@
+/* -*- 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 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: this file is machine generated.  Edits will be over written
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <gr_noise_source_c.h>
+#include <gr_io_signature.h>
+#include <stdexcept>
+
+
+gr_noise_source_c_sptr 
+gr_make_noise_source_c (gr_noise_type_t type, float ampl, long seed)
+{
+  return gr_noise_source_c_sptr (new gr_noise_source_c (type, ampl, seed));
+}
+
+
+gr_noise_source_c::gr_noise_source_c (gr_noise_type_t type, float ampl, long seed)
+  : gr_sync_block ("noise_source_c",
+                  gr_make_io_signature (0, 0, 0),
+                  gr_make_io_signature (1, 1, sizeof (gr_complex))),
+    d_type (type),
+    d_ampl (ampl),
+    d_rng (seed)
+{
+}
+
+int
+gr_noise_source_c::work (int noutput_items,
+                  gr_vector_const_void_star &input_items,
+                  gr_vector_void_star &output_items)
+{
+  gr_complex *out = (gr_complex *) output_items[0];
+  
+  switch (d_type){
+#if 1  // 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] = (gr_complex)(d_ampl * ((d_rng.ran1 () * 2.0) - 1.0));
+    break;
+
+  case GR_GAUSSIAN:
+    for (int i = 0; i < noutput_items; i++)
+      out[i] = (gr_complex)(d_ampl * d_rng.gasdev ());
+    break;
+    
+  case GR_LAPLACIAN:
+    for (int i = 0; i < noutput_items; i++)
+      out[i] = (gr_complex)(d_ampl * d_rng.laplacian ());
+    break;
+    
+  case GR_IMPULSE:     // FIXME changeable impulse settings
+    for (int i = 0; i < noutput_items; i++)
+      out[i] = (gr_complex)(d_ampl * d_rng.impulse (9));
+    break;
+#endif
+    
+  default:
+    throw std::runtime_error ("invalid type");
+  }
+
+  return noutput_items;
+}