00001 /* 00002 * Copyright (C) 2007,2008 Alex Shulgin 00003 * 00004 * This file is part of png++ the C++ wrapper for libpng. PNG++ is free 00005 * software; the exact copying conditions are as follows: 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions are met: 00009 * 00010 * 1. Redistributions of source code must retain the above copyright notice, 00011 * this list of conditions and the following disclaimer. 00012 * 00013 * 2. Redistributions in binary form must reproduce the above copyright 00014 * notice, this list of conditions and the following disclaimer in the 00015 * documentation and/or other materials provided with the distribution. 00016 * 00017 * 3. The name of the author may not be used to endorse or promote products 00018 * derived from this software without specific prior written permission. 00019 * 00020 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 00021 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00022 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 00023 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00024 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00025 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00026 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00027 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00028 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00029 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00030 */ 00031 #ifndef PNGPP_GA_PIXEL_HPP_INCLUDED 00032 #define PNGPP_GA_PIXEL_HPP_INCLUDED 00033 00034 #include <limits> 00035 00036 #include "types.hpp" 00037 #include "pixel_traits.hpp" 00038 00039 namespace png 00040 { 00041 00045 template< typename T > 00046 struct basic_ga_pixel 00047 { 00048 typedef pixel_traits< basic_ga_pixel< T > > traits; 00049 00055 basic_ga_pixel(T value = 0, T alpha = traits::get_alpha_filler()) 00056 : value(value), alpha(alpha) 00057 { 00058 } 00059 00060 T value; 00061 T alpha; 00062 }; 00063 00067 typedef basic_ga_pixel< byte > ga_pixel; 00068 00072 typedef basic_ga_pixel< uint_16 > ga_pixel_16; 00073 00077 template< typename T > 00078 struct pixel_traits< basic_ga_pixel< T > > 00079 : basic_pixel_traits< basic_ga_pixel< T >, T, color_type_ga >, 00080 basic_alpha_pixel_traits< T > 00081 { 00082 }; 00083 00084 } // namespace png 00085 00086 #endif // PNGPP_GA_PIXEL_HPP_INCLUDED
1.7.1