/usr/include/mia-2.4/mia/core/fifofilter.hh is in libmia-2.4-dev 2.4.3-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 | /* -*- mia-c++ -*-
*
* This file is part of MIA - a toolbox for medical image analysis
* Copyright (c) Leipzig, Madrid 1999-2016 Gert Wollny
*
* MIA 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 of the License, or
* (at your option) any later version.
*
* This program 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 MIA; if not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef __mia_fifofilter_hh
#define __mia_fifofilter_hh
#include <vector>
#include <memory>
#include <cstdlib>
#include <boost/call_traits.hpp>
#include <mia/core/msgstream.hh>
#ifndef EXPORT_HANDLER
#ifdef WIN32
#define EXPORT_HANDLER __declspec(dllimport)
#else
#define EXPORT_HANDLER
#endif
#endif
NS_MIA_BEGIN
/**
\ingroup filtering
\brief Generic base class for out-of-core FIFO filters.
Base class for a First-in-first out filter that does not need
the whole data to be loaded.
*/
template <typename T>
class EXPORT_HANDLER TFifoFilter {
public:
/// smart pointer representing this class
typedef std::shared_ptr<TFifoFilter > Pointer;
/**
Constructor
\param width filter width
\param min_fill minimum fill of the buffer to process (usally half
filter width)
\param read_start number of slices need to be pushed into the pipeline
before the first results can be read from the filter
*/
TFifoFilter(size_t width, size_t min_fill, size_t read_start);
/**
Push a data element down the filter pipeline
\param x data element
*/
void push(typename ::boost::call_traits<T>::param_type x);
/**
Initiate the processing of the final slices in the pipeline
*/
void finalize();
/**
Attach a filter at the end of the filter chain
*/
void append_filter(Pointer last);
protected:
/// \returns the current buffer fill
size_t get_pos() const;
/// \returns the size of the buffer
size_t get_buffer_size() const;
/// \returns the start slide for filtering
size_t get_start() const;
/// \returns the start slide for filtering
size_t get_end() const;
private:
/// \returns next filter in the chain
Pointer next() const;
/**
initialize the filter, should to be overwritten
\param x prototype of the data to be processed
*/
virtual void do_initialize(typename ::boost::call_traits<T>::param_type x);
/**
Pure abstract method prototyping the pushing of a data element down the
filter pipeline. This method must be implemented in derived classes
\param x data element to be processed
*/
virtual void do_push(typename ::boost::call_traits<T>::param_type x) = 0;
/**
Do the second stage of filtering producing the filter output.
\returns output data element of the filter
*/
virtual T do_filter();
/**
Provides an interface to cleanup the filter after all slices are processed.
*/
virtual void post_finalize();
/**
Provides the interface to shift tha data in a holding buffer during
processing.
*/
virtual void shift_buffer();
/**
Provides the interface to initiate special evaluation of a data element
within the holding buffer.
\param slice number of the slice to be processed
*/
virtual void evaluate(size_t slice);
size_t m_buf_size;
size_t m_min_fill;
size_t m_read_start;
size_t m_fill;
size_t m_start_slice;
size_t m_end_slice;
Pointer m_chain;
bool m_initialized;
};
/**
\ingroup tests
\brief Helper class for testing FIFO filter chains.
Generic data sink as end of the filter chain that is used for testing purpouses.
*/
template <typename T>
class EXPORT_HANDLER TFifoFilterSink : public TFifoFilter<T> {
public:
/// The result of the processing
typedef std::vector<T> result_type;
/// smart pointer representing this class
typedef std::shared_ptr< TFifoFilterSink<T> > Pointer;
/**
contructor, its implementation is required because TFifoFilter doesn't
provide a standard constructor
*/
TFifoFilterSink();
/// \returns the vector of result values
const result_type& result();
private:
virtual void do_push(typename ::boost::call_traits<T>::param_type x);
void shift_buffer();
result_type m_result;
};
/** @cond INTERNAL
\ingroup traits
\brief create a dynamically allocated copy from a statically allocated object
This traits creates a dynamically allocated copy of the input data and stores it in s std::shared_ptr.
You might want to provide a specialization for cases where the type T doesn't support the copy
constructor and provides a clone() function instead,
\remark - one could add a general trait for this case
*/
template <typename T>
struct __copy_create_ptr {
static std::shared_ptr<T > apply (typename ::boost::call_traits<T>::param_type x){
return std::shared_ptr<T >(new T(x));
}
};
/// @endcond
NS_MIA_END
#endif
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