1 files changed, 125 insertions, 0 deletions
diff --git a/gr-blocks/lib/vector_insert_impl.cc b/gr-blocks/lib/vector_insert_impl.cc
new file mode 100644
index 0000000000..a39b0779ac
--- /dev/null
+++ b/gr-blocks/lib/vector_insert_impl.cc
@@ -0,0 +1,125 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2012,2018 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_insert_impl.h"
+#include <algorithm>
+#include <gnuradio/io_signature.h>
+#include <gnuradio/block.h>
+#include <stdexcept>
+#include <stdio.h>
+
+namespace gr {
+  namespace blocks {
+
+    template <class T>
+    typename vector_insert<T>::sptr
+    vector_insert<T>::make(const std::vector<T> &data, int periodicity, int offset)
+    {
+      return gnuradio::get_initial_sptr
+        (new vector_insert_impl<T> (data, periodicity, offset));
+    }
+
+    template <class T>
+    vector_insert_impl<T>::vector_insert_impl(const std::vector<T> &data,
+                             int periodicity, int offset)
+    : block("vector_insert",
+               io_signature::make(1, 1, sizeof(T)),
+               io_signature::make(1, 1, sizeof(T))),
+      d_data(data),
+      d_offset(offset),
+      d_periodicity(periodicity)
+    {
+      this->set_tag_propagation_policy(gr::block::TPP_DONT); // handle tags manually
+      // some sanity checks
+      assert(offset < periodicity);
+      assert(offset >= 0);
+      assert((size_t)periodicity > data.size());
+    }
+
+    template <class T>
+    vector_insert_impl<T>::~vector_insert_impl()
+    {}
+
+    template <class T>
+    int
+    vector_insert_impl<T> ::general_work(int noutput_items,
+                              gr_vector_int &ninput_items,
+                              gr_vector_const_void_star &input_items,
+                              gr_vector_void_star &output_items)
+    {
+      T *out = (T *)output_items[0];
+      const T *in = (const T *)input_items[0];
+
+      int ii(0), oo(0);
+
+      while((oo < noutput_items) && (ii < ninput_items[0])) {
+        //printf("oo = %d, ii = %d, d_offset = %d, noutput_items = %d, ninput_items[0] = %d", oo, ii, d_offset, noutput_items, ninput_items[0]);
+        //printf(", d_periodicity = %d\n", d_periodicity);
+
+        if(d_offset >= ((int)d_data.size())) { // if we are in the copy region
+          int max_copy = std::min(std::min(noutput_items - oo, ninput_items[0] - ii),
+                                  d_periodicity - d_offset);
+          std::vector<tag_t> tags;
+          this->get_tags_in_range(tags, 0, this->nitems_read(0) + ii, this->nitems_read(0) + max_copy + ii);
+          for(unsigned i = 0; i < tags.size(); i++)
+          {
+            //printf("copy tag from in@%d to out@%d\n", int(tags[i].offset), int(nitems_written(0) + oo + (tags[i].offset-nitems_read(0)-ii)));
+            this->add_item_tag(0, this->nitems_written(0) + oo + (tags[i].offset-this->nitems_read(0)-ii), tags[i].key, tags[i].value, tags[i].srcid);
+          }
+          //printf("copy %d from input\n", max_copy);
+          memcpy( &out[oo], &in[ii], sizeof(T)*max_copy );
+          //printf(" * memcpy returned.\n");
+          ii += max_copy;
+          oo += max_copy;
+          d_offset = (d_offset + max_copy)%d_periodicity;
+        }
+        else { // if we are in the insertion region
+          int max_copy = std::min(noutput_items - oo, ((int)d_data.size()) - d_offset);
+          //printf("copy %d from d_data[%d] to out[%d]\n", max_copy, d_offset, oo);
+          memcpy(&out[oo], &d_data[d_offset], sizeof(T)*max_copy);
+          //printf(" * memcpy returned.\n");
+          oo += max_copy;
+          d_offset = (d_offset + max_copy)%d_periodicity;
+          //printf(" ## (inelse) oo = %d, d_offset = %d\n", oo, d_offset);
+        }
+
+        //printf(" # exit else, on to next loop.\n");
+      }
+      //printf(" # got out of loop\n");
+
+      //printf("consume = %d, produce = %d\n", ii, oo);
+      this->consume_each(ii);
+      return oo;
+    }
+
+template class vector_insert<std::uint8_t>;
+template class vector_insert<std::int16_t>;
+template class vector_insert<std::int32_t>;
+template class vector_insert<float>;
+template class vector_insert<gr_complex>;
+  } /* namespace blocks */
+} /* namespace gr */