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ga_pixel.hpp
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/*
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* Copyright (C) 2007,2008 Alex Shulgin
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*
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* This file is part of png++ the C++ wrapper for libpng. PNG++ is free
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* software; the exact copying conditions are as follows:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef PNGPP_GA_PIXEL_HPP_INCLUDED
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#define PNGPP_GA_PIXEL_HPP_INCLUDED
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#include <limits>
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#include "
types.hpp
"
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#include "
pixel_traits.hpp
"
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namespace
png
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{
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template
<
typename
T >
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struct
basic_ga_pixel
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{
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typedef
pixel_traits< basic_ga_pixel< T > >
traits
;
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basic_ga_pixel
(T
value
= 0, T
alpha
=
traits::get_alpha_filler
())
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:
value
(
value
),
alpha
(
alpha
)
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{
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}
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T
value
;
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T
alpha
;
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};
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typedef
basic_ga_pixel< byte >
ga_pixel
;
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typedef
basic_ga_pixel< uint_16 >
ga_pixel_16
;
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template
<
typename
T >
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struct
pixel_traits<
basic_ga_pixel
< T > >
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:
basic_pixel_traits
< basic_ga_pixel< T >, T, color_type_ga >,
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basic_alpha_pixel_traits
< T >
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{
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};
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}
// namespace png
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#endif // PNGPP_GA_PIXEL_HPP_INCLUDED
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