00001 // Copyright (C) 2010 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 00027 #ifndef MLN_FUN_V2V_QT_RGB_TO_INT_U_HH 00028 # define MLN_FUN_V2V_QT_RGB_TO_INT_U_HH 00029 00033 00034 # include <mln/value/qt/rgb32.hh> 00035 # include <mln/value/int_u8.hh> 00036 00037 namespace mln 00038 { 00039 00040 namespace fun 00041 { 00042 00043 namespace v2v 00044 { 00045 00046 template <unsigned n> 00047 struct qt_rgb_to_int_u : Function_v2v< qt_rgb_to_int_u<n> > 00048 { 00049 typedef value::int_u<n> result; 00050 00051 result operator()(const value::qt::rgb32& c) const; 00052 }; 00053 00054 # ifndef MLN_INCLUDE_ONLY 00055 00056 template <unsigned n> 00057 typename qt_rgb_to_int_u<n>::result 00058 qt_rgb_to_int_u<n>::operator()(const value::qt::rgb32& c) const 00059 { 00060 return (c.red() + c.green() + c.blue()) / 3; 00061 } 00062 00063 # endif // ! MLN_INCLUDE_ONLY 00064 00065 } // end of namespace mln::fun::v2v 00066 00067 } // end of namespace mln::fun 00068 00069 } // end of namespace mln 00070 00071 #endif // ! MLN_FUN_V2V_QT_RGB_TO_INT_U_HH
1.7.1