Milena (Olena)
User documentation 2.0a Id
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00001 // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 00002 // 2010 EPITA Research and Development Laboratory (LRDE) 00003 // 00004 // This file is part of Olena. 00005 // 00006 // Olena is free software: you can redistribute it and/or modify it under 00007 // the terms of the GNU General Public License as published by the Free 00008 // Software Foundation, version 2 of the License. 00009 // 00010 // Olena is distributed in the hope that it will be useful, 00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 // General Public License for more details. 00014 // 00015 // You should have received a copy of the GNU General Public License 00016 // along with Olena. If not, see <http://www.gnu.org/licenses/>. 00017 // 00018 // As a special exception, you may use this file as part of a free 00019 // software project without restriction. Specifically, if other files 00020 // instantiate templates or use macros or inline functions from this 00021 // file, or you compile this file and link it with other files to produce 00022 // an executable, this file does not by itself cause the resulting 00023 // executable to be covered by the GNU General Public License. This 00024 // exception does not however invalidate any other reasons why the 00025 // executable file might be covered by the GNU General Public License. 00026 00027 #ifndef MLN_IO_PNM_SAVE_HH 00028 # define MLN_IO_PNM_SAVE_HH 00029 00034 00035 # include <iostream> 00036 # include <fstream> 00037 00038 # include <mln/core/concept/image.hh> 00039 # include <mln/core/alias/point2d.hh> 00040 # include <mln/value/concept/scalar.hh> 00041 00042 # include <mln/value/rgb.hh> 00043 # include <mln/value/rgb8.hh> 00044 # include <mln/value/int_u8.hh> 00045 00046 # include <mln/metal/templated_by.hh> 00047 # include <mln/metal/not_equal.hh> 00048 00049 # include <mln/io/pnm/save_header.hh> 00050 # include <mln/io/pnm/macros.hh> 00051 00052 # include <mln/geom/size2d.hh> 00053 00054 00055 namespace mln 00056 { 00057 00058 namespace io 00059 { 00060 00061 namespace pnm 00062 { 00063 00071 template <typename I> 00072 void save(char type, const Image<I>& ima_, const std::string& filename); 00073 00074 00075 00076 # ifndef MLN_INCLUDE_ONLY 00077 00078 namespace impl 00079 { 00080 00081 // write a rgb value into for uncontiguous datas 00082 template <unsigned int n> 00083 inline 00084 void write_value(std::ofstream& file, 00085 const value::rgb<n>& c) 00086 { 00087 typedef typename value::int_u<n>::enc E; 00088 00089 E v = c.red().to_enc(); 00090 file.write((char*)&v, sizeof(E)); 00091 v = c.green().to_enc(); 00092 file.write((char*)&v, sizeof(E)); 00093 v = c.blue().to_enc(); 00094 file.write((char*)&v, sizeof(E)); 00095 } 00096 00097 // write a scalar value into for uncontiguous datas 00098 template <typename V> 00099 inline 00100 void write_value(std::ofstream& file, 00101 const V& v) 00102 { 00103 mlc_not_equal(V,bool)::check(); 00104 file.write((char*)(&v), sizeof(V)); 00105 } 00106 00107 // write a scalar value into for uncontiguous datas 00108 template <typename S> 00109 inline 00110 void write_value(std::ofstream& file, 00111 const value::Scalar<S>& s) 00112 { 00113 typedef typename S::enc E; 00114 00115 E c = s.to_enc(); 00116 file.write((char*)(&c), sizeof(E)); 00117 } 00118 00119 // save data for (sizeof(int_u8) != 1) and non fastest images 00120 template <typename I> 00121 inline 00122 void save_data_uncontiguous(std::ofstream& file, 00123 const I& ima) 00124 { 00125 const def::coord 00126 min_row = geom::min_row(ima), 00127 max_row = geom::max_row(ima), 00128 min_col = geom::min_col(ima), 00129 max_col = geom::max_col(ima); 00130 00131 point2d p; 00132 for (p.row() = min_row; p.row() <= max_row; ++p.row()) 00133 for (p.col() = min_col; p.col() <= max_col; ++p.col()) 00134 write_value(file, ima(p)); 00135 } 00136 00137 // save data when (sizeof(int_u8) == 1) with fastest images 00138 // (faster) 00139 template <typename I> 00140 inline 00141 void save_data_contiguous(std::ofstream& file, 00142 const I& ima_) 00143 { 00144 const I& ima = exact(ima_); 00145 const def::coord 00146 min_row = geom::min_row(ima), 00147 max_row = geom::max_row(ima); 00148 point2d p; 00149 p.col() = geom::min_col(ima); 00150 std::size_t len = geom::ncols(ima) * sizeof(mln_value(I)); 00151 for (p.row() = min_row; p.row() <= max_row; ++p.row()) 00152 file.write((char*)(& ima(p)), len); 00153 } 00154 00155 00156 // caller for fastest images 00157 template <typename I> 00158 inline 00159 void save_data_(std::ofstream& file, 00160 trait::image::speed::fastest, const I& ima) 00161 { 00162 // FIXME: GCC 4.1.1 crashes on that line. 00163 if (sizeof(value::int_u8) == 1) 00164 save_data_contiguous(file, ima); 00165 else 00166 save_data_uncontiguous(file, ima); 00167 } 00168 00169 // caller for non fastest images 00170 template <typename I> 00171 inline 00172 void save_data_(std::ofstream& file, 00173 trait::image::speed::any, const I& ima) 00174 { 00175 save_data_uncontiguous(file, ima); 00176 } 00177 00178 } // end of namespace mln::io::pnm::impl 00179 00180 00181 // Facades. 00182 00183 template <typename I> 00184 inline 00185 void save(char type, const Image<I>& ima_, const std::string& filename) 00186 { 00187 trace::entering("mln::io::pnm::save"); 00188 const I& ima = exact(ima_); 00189 std::ofstream file(filename.c_str()); 00190 io::pnm::save_header(type, ima, filename, file); 00191 00192 impl::save_data_(file, 00193 mln_trait_image_speed(I)(), ima); 00194 trace::exiting("mln::io::pnm::save"); 00195 } 00196 00197 # endif // ! MLN_INCLUDE_ONLY 00198 00199 } // end of namespace mln::io::pnm 00200 00201 } // end of namespace mln::io 00202 00203 } // end of namespace mln 00204 00205 00206 #endif // ! MLN_IO_PNM_SAVE_HH