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/* -*- 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_GR_VECTOR_MAP_H
#define INCLUDED_GR_VECTOR_MAP_H
#include <vector>
#include <gr_core_api.h>
#include <gr_sync_interpolator.h>
#include <gruel/thread.h>
class gr_vector_map;
typedef boost::shared_ptr<gr_vector_map> gr_vector_map_sptr;
GR_CORE_API gr_vector_map_sptr
gr_make_vector_map (size_t item_size, std::vector<size_t> in_vlens,
std::vector< std::vector< std::vector<size_t> > > mapping);
/*!
* \brief Maps elements from a set of input vectors to a set of output vectors.
*
* If in[i] is the input vector in the i'th stream then the output
* vector in the j'th stream is:
*
* out[j][k] = in[mapping[j][k][0]][mapping[j][k][1]]
*
* That is mapping is of the form (out_stream1_mapping,
* out_stream2_mapping, ...) and out_stream1_mapping is of the form
* (element1_mapping, element2_mapping, ...) and element1_mapping is
* of the form (in_stream, in_element).
*
* \param item_size (integer) size of vector elements
*
* \param in_vlens (vector of integers) number of elements in each
* input vector
*
* \param mapping (vector of vectors of vectors of integers) how to
* map elements from input to output vectors
*
* \ingroup slicedice_blk
*/
class GR_CORE_API gr_vector_map : public gr_sync_block
{
friend GR_CORE_API gr_vector_map_sptr
gr_make_vector_map(size_t item_size, std::vector<size_t> in_vlens,
std::vector< std::vector< std::vector<size_t> > > mapping);
size_t d_item_size;
std::vector<size_t> d_in_vlens;
std::vector< std::vector< std::vector<size_t> > > d_mapping;
gruel::mutex d_mutex; // mutex to protect set/work access
protected:
gr_vector_map(size_t item_size, std::vector<size_t> in_vlens,
std::vector< std::vector< std::vector<size_t> > > mapping);
public:
int work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
void set_mapping(std::vector< std::vector< std::vector<size_t> > > mapping);
};
#endif /* INCLUDED_GR_VECTOR_MAP_H */
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