From 51cbe589f7cd74056be613587e82e8d3b3168e84 Mon Sep 17 00:00:00 2001
From: Tom Rondeau <trondeau@vt.edu>
Date: Sat, 16 Mar 2013 23:34:34 -0400
Subject: blocks: moved nop, null source/sink, copy, vector_map to gr-blocks.
---
gr-blocks/lib/vector_map_impl.cc | 127 +++++++++++++++++++++++++++++++++++++++
1 file changed, 127 insertions(+)
create mode 100644 gr-blocks/lib/vector_map_impl.cc
(limited to 'gr-blocks/lib/vector_map_impl.cc')
diff --git a/gr-blocks/lib/vector_map_impl.cc b/gr-blocks/lib/vector_map_impl.cc
new file mode 100644
index 0000000000..cefaaeea35
--- /dev/null
+++ b/gr-blocks/lib/vector_map_impl.cc
@@ -0,0 +1,127 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2012,2013 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 "vector_map_impl.h"
+#include <gr_io_signature.h>
+#include <string.h>
+
+namespace gr {
+ namespace blocks {
+
+ std::vector<int>
+ get_in_sizeofs(size_t item_size, std::vector<size_t> in_vlens)
+ {
+ std::vector<int> in_sizeofs;
+ for(unsigned int i = 0; i < in_vlens.size(); i++) {
+ in_sizeofs.push_back(in_vlens[i]*item_size);
+ }
+ return in_sizeofs;
+ }
+
+ std::vector<int>
+ get_out_sizeofs(size_t item_size,
+ std::vector< std::vector< std::vector<size_t> > > mapping)
+ {
+ std::vector<int> out_sizeofs;
+ for(unsigned int i = 0; i < mapping.size(); i++) {
+ out_sizeofs.push_back(mapping[i].size()*item_size);
+ }
+ return out_sizeofs;
+ }
+
+ vector_map::sptr
+ vector_map::make(size_t item_size, std::vector<size_t> in_vlens,
+ std::vector< std::vector< std::vector<size_t> > > mapping)
+ {
+ return gnuradio::get_initial_sptr
+ (new vector_map_impl(item_size, in_vlens, mapping));
+ }
+
+ vector_map_impl::vector_map_impl(size_t item_size, std::vector<size_t> in_vlens,
+ std::vector< std::vector< std::vector<size_t> > > mapping)
+ : gr_sync_block("vector_map",
+ gr_make_io_signaturev(in_vlens.size(), in_vlens.size(),
+ get_in_sizeofs(item_size, in_vlens)),
+ gr_make_io_signaturev(mapping.size(), mapping.size(),
+ get_out_sizeofs(item_size, mapping))),
+ d_item_size(item_size), d_in_vlens(in_vlens)
+ {
+ set_mapping(mapping);
+ }
+
+ vector_map_impl::~vector_map_impl()
+ {
+ }
+
+ void
+ vector_map_impl::set_mapping(std::vector< std::vector< std::vector<size_t> > > mapping)
+ {
+ // Make sure the contents of the mapping vectors are possible.
+ for(unsigned int i=0; i<mapping.size(); i++) {
+ for(unsigned int j=0; j<mapping[i].size(); j++) {
+ if(mapping[i][j].size() != 2) {
+ throw std::runtime_error("Mapping must be of the form (out_mapping_stream1, out_mapping_stream2, ...), where out_mapping_stream1 is of the form (mapping_element1, mapping_element2, ...), where mapping_element1 is of the form (input_stream, input_element). This error is raised because a mapping_element vector does not contain exactly 2 items.");
+ }
+ unsigned int s = mapping[i][j][0];
+ unsigned int index = mapping[i][j][1];
+ if(s >= d_in_vlens.size()) {
+ throw std::runtime_error("Stream numbers in mapping must be less than the number of input streams.");
+ }
+ if((index < 0) || (index >= d_in_vlens[s])) {
+ throw std::runtime_error ("Indices in mapping must be greater than 0 and less than the input vector lengths.");
+ }
+ }
+ }
+ gruel::scoped_lock guard(d_mutex);
+ d_mapping = mapping;
+ }
+
+ int
+ vector_map_impl::work(int noutput_items,
+ gr_vector_const_void_star &input_items,
+ gr_vector_void_star &output_items)
+ {
+ const char **inv = (const char**)&input_items[0];
+ char **outv = (char**)&output_items[0];
+
+ for(unsigned int n = 0; n < (unsigned int)(noutput_items); n++) {
+ for(unsigned int i = 0; i < d_mapping.size(); i++) {
+ unsigned int out_vlen = d_mapping[i].size();
+ for(unsigned int j = 0; j < out_vlen; j++) {
+ unsigned int s = d_mapping[i][j][0];
+ unsigned int k = d_mapping[i][j][1];
+ memcpy(outv[i] + out_vlen*d_item_size*n +
+ d_item_size*j, inv[s] + d_in_vlens[s]*d_item_size*n +
+ k*d_item_size, d_item_size);
+ }
+ }
+ }
+
+ return noutput_items;
+ }
+
+ } /* namespace blocks */
+} /* namespace gr */
--
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