From a3b74a25fcba67f61bf3cabb25286201f1263b0a Mon Sep 17 00:00:00 2001
From: Johnathan Corgan
Date: Thu, 28 Jun 2012 09:46:38 -0700
Subject: blocks: added gr::blocks::uchar_to_float
---
gr-blocks/grc/blocks_block_tree.xml | 1 +
gr-blocks/grc/blocks_uchar_to_float.xml | 20 +++++++++++
gr-blocks/include/blocks/CMakeLists.txt | 1 +
gr-blocks/include/blocks/uchar_to_float.h | 49 +++++++++++++++++++++++++
gr-blocks/lib/CMakeLists.txt | 2 ++
gr-blocks/lib/uchar_array_to_float.cc | 40 +++++++++++++++++++++
gr-blocks/lib/uchar_array_to_float.h | 34 ++++++++++++++++++
gr-blocks/lib/uchar_to_float_impl.cc | 60 +++++++++++++++++++++++++++++++
gr-blocks/lib/uchar_to_float_impl.h | 45 +++++++++++++++++++++++
gr-blocks/python/qa_type_conversions.py | 10 ++++++
gr-blocks/swig/blocks_swig.i | 3 ++
11 files changed, 265 insertions(+)
create mode 100644 gr-blocks/grc/blocks_uchar_to_float.xml
create mode 100644 gr-blocks/include/blocks/uchar_to_float.h
create mode 100644 gr-blocks/lib/uchar_array_to_float.cc
create mode 100644 gr-blocks/lib/uchar_array_to_float.h
create mode 100644 gr-blocks/lib/uchar_to_float_impl.cc
create mode 100644 gr-blocks/lib/uchar_to_float_impl.h
(limited to 'gr-blocks')
diff --git a/gr-blocks/grc/blocks_block_tree.xml b/gr-blocks/grc/blocks_block_tree.xml
index f277706f6..d32147987 100644
--- a/gr-blocks/grc/blocks_block_tree.xml
+++ b/gr-blocks/grc/blocks_block_tree.xml
@@ -57,5 +57,6 @@
blocks_interleaved_short_to_complexblocks_short_to_charblocks_short_to_float
+ blocks_uchar_to_float
diff --git a/gr-blocks/grc/blocks_uchar_to_float.xml b/gr-blocks/grc/blocks_uchar_to_float.xml
new file mode 100644
index 000000000..eb2b5505e
--- /dev/null
+++ b/gr-blocks/grc/blocks_uchar_to_float.xml
@@ -0,0 +1,20 @@
+
+
+
+ UChar To Float
+ blocks_uchar_to_float
+ from gnuradio import blocks
+ blocks.uchar_to_float()
+
+ in
+ byte
+
+
+ out
+ float
+
+
diff --git a/gr-blocks/include/blocks/CMakeLists.txt b/gr-blocks/include/blocks/CMakeLists.txt
index 8c39acb81..7cd8a5483 100644
--- a/gr-blocks/include/blocks/CMakeLists.txt
+++ b/gr-blocks/include/blocks/CMakeLists.txt
@@ -106,6 +106,7 @@ install(FILES
multiply_const_ff.h
short_to_char.h
short_to_float.h
+ uchar_to_float.h
DESTINATION ${GR_INCLUDE_DIR}/gnuradio/blocks
COMPONENT "blocks_devel"
)
diff --git a/gr-blocks/include/blocks/uchar_to_float.h b/gr-blocks/include/blocks/uchar_to_float.h
new file mode 100644
index 000000000..033037e49
--- /dev/null
+++ b/gr-blocks/include/blocks/uchar_to_float.h
@@ -0,0 +1,49 @@
+/* -*- 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_BLOCKS_UCHAR_TO_FLOAT_H
+#define INCLUDED_BLOCKS_UCHAR_TO_FLOAT_H
+
+#include
+#include
+
+namespace gr {
+ namespace blocks {
+
+ /*!
+ * \brief Convert stream of unsigned chars to a stream of floats
+ * \ingroup converter_blk
+ */
+ class BLOCKS_API uchar_to_float : virtual public gr_sync_block
+ {
+ public:
+
+ // gr::blocks::uchar_to_float_ff::sptr
+ typedef boost::shared_ptr sptr;
+
+ static sptr make();
+ };
+
+ } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* INCLUDED_BLOCKS_UCHAR_TO_FLOAT_H */
diff --git a/gr-blocks/lib/CMakeLists.txt b/gr-blocks/lib/CMakeLists.txt
index 4551baeca..6974e7e92 100644
--- a/gr-blocks/lib/CMakeLists.txt
+++ b/gr-blocks/lib/CMakeLists.txt
@@ -143,6 +143,8 @@ list(APPEND gr_blocks_sources
multiply_const_ff_impl.cc
short_to_char_impl.cc
short_to_float_impl.cc
+ uchar_array_to_float.cc
+ uchar_to_float_impl.cc
)
list(APPEND blocks_libs
diff --git a/gr-blocks/lib/uchar_array_to_float.cc b/gr-blocks/lib/uchar_array_to_float.cc
new file mode 100644
index 000000000..90cc0fca3
--- /dev/null
+++ b/gr-blocks/lib/uchar_array_to_float.cc
@@ -0,0 +1,40 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2005,2012 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.
+ */
+
+#include
+
+void
+uchar_array_to_float (const unsigned char *in, float *out, int nsamples)
+{
+ while (nsamples >= 4){
+ out[0] = in[0];
+ out[1] = in[1];
+ out[2] = in[2];
+ out[3] = in[3];
+ out += 4;
+ in += 4;
+ nsamples -= 4;
+ }
+
+ while (nsamples-- > 0)
+ *out++ = *in++;
+}
diff --git a/gr-blocks/lib/uchar_array_to_float.h b/gr-blocks/lib/uchar_array_to_float.h
new file mode 100644
index 000000000..e6772c2a8
--- /dev/null
+++ b/gr-blocks/lib/uchar_array_to_float.h
@@ -0,0 +1,34 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2005, 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_UCHAR_ARRAY_TO_FLOAT_H
+#define INCLUDED_UCHAR_ARRAY_TO_FLOAT_H
+
+#include
+
+/*
+ * convert array of unsigned chars to floats
+ */
+BLOCKS_API void uchar_array_to_float (const unsigned char *in, float *out, int nsamples);
+
+
+#endif /* INCLUDED_UCHAR_ARRAY_TO_FLOAT_H */
diff --git a/gr-blocks/lib/uchar_to_float_impl.cc b/gr-blocks/lib/uchar_to_float_impl.cc
new file mode 100644
index 000000000..608c05ad4
--- /dev/null
+++ b/gr-blocks/lib/uchar_to_float_impl.cc
@@ -0,0 +1,60 @@
+/* -*- 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 "uchar_to_float_impl.h"
+#include "uchar_array_to_float.h"
+#include
+
+namespace gr {
+ namespace blocks {
+
+ uchar_to_float::sptr uchar_to_float::make()
+ {
+ return gnuradio::get_initial_sptr(new uchar_to_float_impl());
+ }
+
+ uchar_to_float_impl::uchar_to_float_impl()
+ : gr_sync_block("uchar_to_float",
+ gr_make_io_signature (1, 1, sizeof(unsigned char)),
+ gr_make_io_signature (1, 1, sizeof(float)))
+ {
+ }
+
+ int
+ uchar_to_float_impl::work(int noutput_items,
+ gr_vector_const_void_star &input_items,
+ gr_vector_void_star &output_items)
+ {
+ const unsigned char *in = (const unsigned char *) input_items[0];
+ float *out = (float *) output_items[0];
+
+ uchar_array_to_float (in, out, noutput_items);
+
+ return noutput_items;
+ }
+
+ } /* namespace blocks */
+}/* namespace gr */
diff --git a/gr-blocks/lib/uchar_to_float_impl.h b/gr-blocks/lib/uchar_to_float_impl.h
new file mode 100644
index 000000000..250dc2c86
--- /dev/null
+++ b/gr-blocks/lib/uchar_to_float_impl.h
@@ -0,0 +1,45 @@
+/* -*- 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_UCHAR_TO_FLOAT_IMPL_H
+#define INCLUDED_UCHAR_TO_FLOAT_IMPL_H
+
+#include
+
+namespace gr {
+ namespace blocks {
+
+ class BLOCKS_API uchar_to_float_impl : public uchar_to_float
+ {
+ public:
+ uchar_to_float_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_UCHAR_TO_FLOAT_IMPL_H */
diff --git a/gr-blocks/python/qa_type_conversions.py b/gr-blocks/python/qa_type_conversions.py
index a77fe8af5..eb1b42b63 100755
--- a/gr-blocks/python/qa_type_conversions.py
+++ b/gr-blocks/python/qa_type_conversions.py
@@ -301,6 +301,16 @@ class test_type_conversions(gr_unittest.TestCase):
self.tb.run()
self.assertEqual(expected_data, dst.data())
+ def test_uchar_to_float(self):
+ src_data = (1, 2, 3, 4, 5)
+ expected_data = (1.0, 2.0, 3.0, 4.0, 5.0)
+ src = gr.vector_source_b(src_data)
+ op = blocks_swig.uchar_to_float()
+ dst = gr.vector_sink_f()
+ self.tb.connect(src, op, dst)
+ self.tb.run()
+ self.assertEqual(expected_data, dst.data())
+
if __name__ == '__main__':
gr_unittest.run(test_type_conversions, "test_type_conversions.xml")
diff --git a/gr-blocks/swig/blocks_swig.i b/gr-blocks/swig/blocks_swig.i
index 62ee25742..097f8be70 100644
--- a/gr-blocks/swig/blocks_swig.i
+++ b/gr-blocks/swig/blocks_swig.i
@@ -78,6 +78,7 @@
#include "blocks/sub_ss.h"
#include "blocks/sub_ii.h"
#include "blocks/sub_cc.h"
+#include "blocks/uchar_to_float.h"
%}
%include "blocks/add_ff.h"
@@ -130,6 +131,7 @@
%include "blocks/sub_ss.h"
%include "blocks/sub_ii.h"
%include "blocks/sub_cc.h"
+%include "blocks/uchar_to_float.h"
GR_SWIG_BLOCK_MAGIC2(blocks, add_ff);
GR_SWIG_BLOCK_MAGIC2(blocks, add_ss);
@@ -181,3 +183,4 @@ GR_SWIG_BLOCK_MAGIC2(blocks, sub_ff);
GR_SWIG_BLOCK_MAGIC2(blocks, sub_ss);
GR_SWIG_BLOCK_MAGIC2(blocks, sub_ii);
GR_SWIG_BLOCK_MAGIC2(blocks, sub_cc);
+GR_SWIG_BLOCK_MAGIC2(blocks, uchar_to_float);
--
cgit