index_pixel.hpp
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/*
* Copyright (C) 2007,2008 Alex Shulgin
*
* This file is part of png++ the C++ wrapper for libpng. PNG++ is free
* software; the exact copying conditions are as follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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*/
#ifndef PNGPP_INDEX_PIXEL_HPP_INCLUDED
#define PNGPP_INDEX_PIXEL_HPP_INCLUDED
#include "types.hpp"
#include "packed_pixel.hpp"
#include "pixel_traits.hpp"
namespace png
{
class index_pixel
{
public:
index_pixel(byte index = 0)
: m_index(index)
{
}
operator byte() const
{
return m_index;
}
private:
byte m_index;
};
template< int bits >
class packed_index_pixel
: public packed_pixel< bits >
{
public:
packed_index_pixel(byte value = 0)
: packed_pixel< bits >(value)
{
}
};
typedef packed_index_pixel< 1 > index_pixel_1;
typedef packed_index_pixel< 2 > index_pixel_2;
typedef packed_index_pixel< 4 > index_pixel_4;
template<>
struct pixel_traits< index_pixel >
: basic_pixel_traits< index_pixel, byte, color_type_palette >
{
};
template< int bits >
struct pixel_traits< packed_index_pixel< bits > >
: basic_pixel_traits< packed_index_pixel< bits >, byte,
color_type_palette, /* channels = */ 1, bits >
{
};
} // namespace png
#endif // PNGPP_INDEX_PIXEL_HPP_INCLUDED
png::index_pixel
The 8-bit Indexed (colormap) pixel type.
Definition index_pixel.hpp:45
png::index_pixel::index_pixel
index_pixel(byte index=0)
Definition index_pixel.hpp:47
png::packed_index_pixel
The packed indexed pixel class template. The available specializations are for 1-,...
Definition index_pixel.hpp:68
png::packed_index_pixel::packed_index_pixel
packed_index_pixel(byte value=0)
Definition index_pixel.hpp:70
png::packed_pixel
The packed pixel class template.
Definition packed_pixel.hpp:56
png::reader
The PNG reader class template. This is the low-level reading interface–use image class or consumer cl...
Definition reader.hpp:67
png
Definition color.hpp:37
png::index_pixel_4
packed_index_pixel< 4 > index_pixel_4
The 1-bit Indexed pixel type.
Definition index_pixel.hpp:89
png::index_pixel_2
packed_index_pixel< 2 > index_pixel_2
The 1-bit Indexed pixel type.
Definition index_pixel.hpp:84
png::byte
png_byte byte
Definition types.hpp:39
png::index_pixel_1
packed_index_pixel< 1 > index_pixel_1
The 1-bit Indexed pixel type.
Definition index_pixel.hpp:79
packed_pixel.hpp
pixel_traits.hpp
png::basic_pixel_traits
Basic pixel traits class template.
Definition pixel_traits.hpp:62
png::pixel_traits
Pixel traits class template.
Definition pixel_traits.hpp:48
types.hpp