png++ 0.2.9
gray_pixel.hpp
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1/*
2 * Copyright (C) 2007,2008 Alex Shulgin
3 *
4 * This file is part of png++ the C++ wrapper for libpng. PNG++ is free
5 * software; the exact copying conditions are as follows:
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7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
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10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
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20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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30 */
31#ifndef PNGPP_GRAY_PIXEL_HPP_INCLUDED
32#define PNGPP_GRAY_PIXEL_HPP_INCLUDED
33
34#include "types.hpp"
35#include "packed_pixel.hpp"
36#include "pixel_traits.hpp"
37
38namespace png
39{
40
44 typedef byte gray_pixel;
45
50
55 template< int bits >
57 : public packed_pixel< bits >
58 {
59 public:
60 packed_gray_pixel(byte value = 0)
61 : packed_pixel< bits >(value)
62 {
63 }
64 };
65
70
75
80
84 template<>
86 : basic_pixel_traits< gray_pixel, byte, color_type_gray >
87 {
88 };
89
93 template<>
95 : basic_pixel_traits< gray_pixel_16, uint_16, color_type_gray >
96 {
97 };
98
102 template< int bits >
104 : basic_pixel_traits< packed_gray_pixel< bits >, byte,
105 color_type_gray, /* channels = */ 1, bits >
106 {
107 };
108
109} // namespace png
110
111#endif // PNGPP_GRAY_PIXEL_HPP_INCLUDED
The packed gray pixel class template. The available specializations are for 1-, 2- and 4-bit pixels.
Definition gray_pixel.hpp:58
packed_gray_pixel(byte value=0)
Definition gray_pixel.hpp:60
The packed pixel class template.
Definition packed_pixel.hpp:56
The PNG reader class template. This is the low-level reading interface–use image class or consumer cl...
Definition reader.hpp:67
Definition color.hpp:37
packed_gray_pixel< 2 > gray_pixel_2
The 2-bit Grayscale pixel type.
Definition gray_pixel.hpp:74
packed_gray_pixel< 1 > gray_pixel_1
The 1-bit Grayscale pixel type.
Definition gray_pixel.hpp:69
byte gray_pixel
The 8-bit Grayscale pixel type.
Definition gray_pixel.hpp:44
packed_gray_pixel< 4 > gray_pixel_4
The 4-bit Grayscale pixel type.
Definition gray_pixel.hpp:79
uint_16 gray_pixel_16
The 16-bit Grayscale pixel type.
Definition gray_pixel.hpp:49
Basic pixel traits class template.
Definition pixel_traits.hpp:62
Pixel traits class template.
Definition pixel_traits.hpp:48