Milena (Olena)
User documentation 2.0a Id
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00001 // Copyright (C) 2008, 2009 EPITA Research and Development Laboratory (LRDE) 00002 // 00003 // This file is part of Olena. 00004 // 00005 // Olena is free software: you can redistribute it and/or modify it under 00006 // the terms of the GNU General Public License as published by the Free 00007 // Software Foundation, version 2 of the License. 00008 // 00009 // Olena is distributed in the hope that it will be useful, 00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 // General Public License for more details. 00013 // 00014 // You should have received a copy of the GNU General Public License 00015 // along with Olena. If not, see <http://www.gnu.org/licenses/>. 00016 // 00017 // As a special exception, you may use this file as part of a free 00018 // software project without restriction. Specifically, if other files 00019 // instantiate templates or use macros or inline functions from this 00020 // file, or you compile this file and link it with other files to produce 00021 // an executable, this file does not by itself cause the resulting 00022 // executable to be covered by the GNU General Public License. This 00023 // exception does not however invalidate any other reasons why the 00024 // executable file might be covered by the GNU General Public License. 00025 00026 #ifndef MLN_ACCU_TRANSFORM_STOP_HH 00027 # define MLN_ACCU_TRANSFORM_STOP_HH 00028 00033 00034 # include <mln/core/concept/meta_accumulator.hh> 00035 # include <mln/core/concept/image.hh> 00036 # include <mln/core/concept/window.hh> 00037 # include <mln/extension/adjust.hh> 00038 00039 00040 namespace mln 00041 { 00042 00043 namespace accu 00044 { 00045 00046 template <typename I, typename A, typename W> 00047 mln_ch_value(I, mln_result(A)) 00048 transform_stop(const Image<I>& input, const Accumulator<A>& a, const Window<W>& win); 00049 00050 template <typename I, typename A, typename W> 00051 mln_ch_value(I, mln_meta_accu_result(A, mln_value(I))) 00052 transform_stop(const Image<I>& input, const Meta_Accumulator<A>& a, const Window<W>& win); 00053 00054 00055 00056 # ifndef MLN_INCLUDE_ONLY 00057 00058 00059 namespace impl 00060 { 00061 00062 // Generic version. 00063 00064 namespace generic 00065 { 00066 00067 template <typename I, typename A, typename W> 00068 mln_ch_value(I, mln_result(A)) 00069 transform_stop(const Image<I>& input_, 00070 const Accumulator<A>& a_, 00071 const Window<W>& win_) 00072 { 00073 trace::entering("accu::impl::generic::transform_stop"); 00074 00075 const I& input = exact(input_); 00076 const W& win = exact(win_); 00077 A a = exact(a_); 00078 00079 mln_precondition(input.is_valid()); 00080 mln_precondition(win.is_valid()); 00081 00082 extension::adjust(input, win); 00083 00084 mln_ch_value(I, mln_result(A)) output; 00085 initialize(output, input); 00086 00087 mln_piter(I) p(input.domain()); 00088 mln_qiter(W) q(win, p); 00089 for_all(p) 00090 { 00091 a.init(); 00092 for_all(q) if (input.has(q)) 00093 { 00094 a.take(input(q)); 00095 if (a.can_stop()) 00096 break; 00097 } 00098 output(p) = a.to_result(); 00099 } 00100 00101 trace::exiting("accu::impl::generic::transform_stop"); 00102 return output; 00103 } 00104 00105 } // end of namespace mln::accu::impl::generic 00106 00107 00108 // Fastest version. 00109 00110 template <typename I, typename A, typename W> 00111 mln_ch_value(I, mln_result(A)) 00112 transform_stop_fastest(const Image<I>& input_, const Accumulator<A>& a_, const Window<W>& win_) 00113 { 00114 trace::entering("accu::impl::transform_stop_fastest"); 00115 00116 const I& input = exact(input_); 00117 const W& win = exact(win_); 00118 A a = exact(a_); 00119 00120 mln_precondition(input.is_valid()); 00121 mln_precondition(win.is_valid()); 00122 00123 extension::adjust(input, win); 00124 00125 typedef mln_ch_value(I, mln_result(A)) O; 00126 O output; 00127 initialize(output, input); 00128 mln_pixter(O) o(output); 00129 00130 mln_pixter(const I) p(input); 00131 mln_qixter(const I, W) q(p, win); 00132 for_all_2(p, o) 00133 { 00134 a.init(); 00135 for_all(q) 00136 { 00137 a.take(q.val()); 00138 if (a.can_stop()) 00139 break; 00140 } 00141 o.val() = a.to_result(); 00142 } 00143 00144 trace::exiting("accu::impl::transform_stop_fastest"); 00145 return output; 00146 } 00147 00148 00149 } // end of namespace mln::accu::impl 00150 00151 00152 // Dispatch. 00153 00154 namespace internal 00155 { 00156 00157 template <typename I, typename A, typename W> 00158 mln_ch_value(I, mln_result(A)) 00159 transform_stop_dispatch(metal::false_, 00160 const Image<I>& input, const Accumulator<A>& a, const Window<W>& win) 00161 { 00162 return impl::generic::transform_stop(input, a, win); 00163 } 00164 00165 template <typename I, typename A, typename W> 00166 mln_ch_value(I, mln_result(A)) 00167 transform_stop_dispatch(metal::true_, 00168 const Image<I>& input, const Accumulator<A>& a, const Window<W>& win) 00169 { 00170 return impl::transform_stop_fastest(input, a, win); 00171 } 00172 00173 template <typename I, typename A, typename W> 00174 mln_ch_value(I, mln_result(A)) 00175 transform_stop_dispatch(const Image<I>& input, const Accumulator<A>& a, const Window<W>& win) 00176 { 00177 return transform_stop_dispatch(mln_is_fastest_IW(I, W)(), 00178 input, a, win); 00179 } 00180 00181 } // end of namespace mln::accu::internal 00182 00183 00184 // Facades. 00185 00186 template <typename I, typename A, typename W> 00187 inline 00188 mln_ch_value(I, mln_result(A)) 00189 transform_stop(const Image<I>& input, const Accumulator<A>& a, const Window<W>& win) 00190 { 00191 trace::entering("accu::transform_stop"); 00192 00193 mln_precondition(exact(input).is_valid()); 00194 mln_precondition(exact(win).is_valid()); 00195 00196 mln_ch_value(I, mln_result(A)) output; 00197 output = internal::transform_stop_dispatch(input, a, win); 00198 00199 trace::exiting("accu::transform_stop"); 00200 return output; 00201 } 00202 00203 template <typename I, typename A, typename W> 00204 mln_ch_value(I, mln_meta_accu_result(A, mln_value(I))) 00205 transform_stop(const Image<I>& input, const Meta_Accumulator<A>& a, const Window<W>& win) 00206 { 00207 trace::entering("accu::transform_stop"); 00208 00209 mln_precondition(exact(input).is_valid()); 00210 mln_precondition(exact(win).is_valid()); 00211 00212 typedef mln_accu_with(A, mln_value(I)) A_; 00213 A_ a_ = accu::unmeta(exact(a), mln_value(I)()); 00214 00215 mln_ch_value(I, mln_result(A_)) output; 00216 output = internal::transform_stop_dispatch(input, a_, win); 00217 00218 trace::exiting("accu::transform_stop"); 00219 return output; 00220 } 00221 00222 # endif // ! MLN_INCLUDE_ONLY 00223 00224 } // end of namespace mln::accu 00225 00226 } // end of namespace mln 00227 00228 00229 #endif // ! MLN_ACCU_TRANSFORM_STOP_HH