diff options
| author | jcorgan <jcorgan@221aa14e-8319-0410-a670-987f0aec2ac5> | 2006-08-03 04:51:51 +0000 |
|---|---|---|
| committer | jcorgan <jcorgan@221aa14e-8319-0410-a670-987f0aec2ac5> | 2006-08-03 04:51:51 +0000 |
| commit | 5d69a524f81f234b3fbc41d49ba18d6f6886baba (patch) | |
| tree | b71312bf7f1e8d10fef0f3ac6f28784065e73e72 /gnuradio-core/src/lib/general/gr_interleave.cc | |
Houston, we have a trunk.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3122 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'gnuradio-core/src/lib/general/gr_interleave.cc')
| -rw-r--r-- | gnuradio-core/src/lib/general/gr_interleave.cc | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/gnuradio-core/src/lib/general/gr_interleave.cc b/gnuradio-core/src/lib/general/gr_interleave.cc new file mode 100644 index 0000000000..cae0cd9dc1 --- /dev/null +++ b/gnuradio-core/src/lib/general/gr_interleave.cc @@ -0,0 +1,77 @@ +/* -*- 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 2, 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., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <gr_interleave.h> +#include <gr_io_signature.h> +#include <string.h> + + +gr_interleave_sptr +gr_make_interleave (size_t itemsize) +{ + return gr_interleave_sptr (new gr_interleave (itemsize)); +} + +gr_interleave::gr_interleave (size_t itemsize) + : gr_sync_interpolator ("interleave", + gr_make_io_signature (1, gr_io_signature::IO_INFINITE, itemsize), + gr_make_io_signature (1, 1, itemsize), + 1), + d_itemsize (itemsize) +{ +} + +gr_interleave::~gr_interleave () +{ + // NOP +} + +bool +gr_interleave::check_topology (int ninputs, int noutputs) +{ + set_interpolation (ninputs); + return true; +} + +int +gr_interleave::work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + size_t nchan = input_items.size (); + size_t itemsize = d_itemsize; + const char **in = (const char **) &input_items[0]; + char *out = (char *) output_items[0]; + + for (int i = 0; i < noutput_items; i += nchan){ + for (unsigned int n = 0; n < nchan; n++){ + memcpy (out, in[n], itemsize); + out += itemsize; + in[n] += itemsize; + } + } + return noutput_items; +} |