core: adding a type converter - int -> float.

5 files changed, 144 insertions, 0 deletions

diff --git a/gnuradio-core/src/lib/general/Makefile.am b/gnuradio-core/src/lib/general/Makefile.am
index 3ceea7a6d..c36e7d7e7 100644
--- a/gnuradio-core/src/lib/general/Makefile.am
+++ b/gnuradio-core/src/lib/general/Makefile.am
@@ -139,6 +139,7 @@ libgeneral_la_SOURCES = 		\
 	gr_rms_cf.cc			\
 	gr_rms_ff.cc			\
 	gr_short_to_float.cc		\
+	gr_int_to_float.cc		\
 	gr_simple_correlator.cc		\
 	gr_simple_framer.cc		\
 	gr_simple_squelch_cc.cc		\
@@ -301,6 +302,7 @@ grinclude_HEADERS = 			\
 	gr_rms_cf.h			\
 	gr_rms_ff.h			\
 	gr_short_to_float.h		\
+	gr_int_to_float.h		\
 	gr_simple_correlator.h		\
 	gr_simple_framer.h		\
 	gr_simple_framer_sync.h		\
diff --git a/gnuradio-core/src/lib/general/general.i b/gnuradio-core/src/lib/general/general.i
index fb9c4c0f2..e8a18ab19 100644
--- a/gnuradio-core/src/lib/general/general.i
+++ b/gnuradio-core/src/lib/general/general.i
@@ -42,6 +42,7 @@
 #include <gr_float_to_char.h>
 #include <gr_float_to_uchar.h>
 #include <gr_short_to_float.h>
+#include <gr_int_to_float.h>
 #include <gr_char_to_float.h>
 #include <gr_uchar_to_float.h>
 #include <gr_frequency_modulator_fc.h>
@@ -167,6 +168,7 @@
 %include "gr_float_to_char.i"
 %include "gr_float_to_uchar.i"
 %include "gr_short_to_float.i"
+%include "gr_int_to_float.i"
 %include "gr_char_to_float.i"
 %include "gr_uchar_to_float.i"
 %include "gr_frequency_modulator_fc.i"
diff --git a/gnuradio-core/src/lib/general/gr_int_to_float.cc b/gnuradio-core/src/lib/general/gr_int_to_float.cc
new file mode 100644
index 000000000..c60157e34
--- /dev/null
+++ b/gnuradio-core/src/lib/general/gr_int_to_float.cc
@@ -0,0 +1,59 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2011 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 <gr_int_to_float.h>
+#include <gr_io_signature.h>
+
+gr_int_to_float_sptr
+gr_make_int_to_float ()
+{
+  return gnuradio::get_initial_sptr(new gr_int_to_float ());
+}
+
+gr_int_to_float::gr_int_to_float ()
+  : gr_sync_block ("gr_int_to_float",
+		   gr_make_io_signature (1, 1, sizeof (int32_t)),
+		   gr_make_io_signature (1, 1, sizeof (float)))
+{
+}
+
+int
+gr_int_to_float::work (int noutput_items,
+			 gr_vector_const_void_star &input_items,
+			 gr_vector_void_star &output_items)
+{
+  const int32_t *in = (const int32_t *) input_items[0];
+  float *out = (float *) output_items[0];
+
+  for(int i=0; i<noutput_items; i++){
+    out[i] = (float) in[i];
+    }
+  
+  return noutput_items;
+}
+
+
+
diff --git a/gnuradio-core/src/lib/general/gr_int_to_float.h b/gnuradio-core/src/lib/general/gr_int_to_float.h
new file mode 100644
index 000000000..cf1223be5
--- /dev/null
+++ b/gnuradio-core/src/lib/general/gr_int_to_float.h
@@ -0,0 +1,51 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2011 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_INT_TO_FLOAT_H
+#define INCLUDED_GR_INT_TO_FLOAT_H
+
+#include <gr_sync_block.h>
+
+class gr_int_to_float;
+typedef boost::shared_ptr<gr_int_to_float> gr_int_to_float_sptr;
+
+gr_int_to_float_sptr
+gr_make_int_to_float ();
+
+/*!
+ * \brief Convert stream of short to a stream of float
+ * \ingroup converter_blk
+ */
+
+class gr_int_to_float : public gr_sync_block
+{
+  friend gr_int_to_float_sptr gr_make_int_to_float ();
+  gr_int_to_float ();
+
+ public:
+  virtual int work (int noutput_items,
+		    gr_vector_const_void_star &input_items,
+		    gr_vector_void_star &output_items);
+};
+
+
+#endif /* INCLUDED_GR_INT_TO_FLOAT_H */
diff --git a/gnuradio-core/src/lib/general/gr_int_to_float.i b/gnuradio-core/src/lib/general/gr_int_to_float.i
new file mode 100644
index 000000000..8cb9e35b5
--- /dev/null
+++ b/gnuradio-core/src/lib/general/gr_int_to_float.i
@@ -0,0 +1,30 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2011 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.
+ */
+
+GR_SWIG_BLOCK_MAGIC(gr,int_to_float)
+
+gr_int_to_float_sptr gr_make_int_to_float ();
+
+class gr_int_to_float : public gr_sync_block
+{
+  gr_int_to_float ();
+};