png++: gray_pixel.hpp Source File

png++ 0.2.10

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:
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * 3. The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
23 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
25 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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
38 namespace png
39 {
40
44 typedef byte gray_pixel;
45
49 typedef uint_16 gray_pixel_16;
50
55 template< int bits >
56 class packed_gray_pixel
57 : public packed_pixel< bits >
58 {
59 public:
60 packed_gray_pixel(byte value = 0)
61 : packed_pixel< bits >(value)
62 {
63 }
64 };
65
69 typedef packed_gray_pixel< 1 > gray_pixel_1;
70
74 typedef packed_gray_pixel< 2 > gray_pixel_2;
75
79 typedef packed_gray_pixel< 4 > gray_pixel_4;
80
84 template<>
85 struct pixel_traits< gray_pixel >
86 : basic_pixel_traits< gray_pixel, byte, color_type_gray >
87 {
88 };
89
93 template<>
94 struct pixel_traits< gray_pixel_16 >
95 : basic_pixel_traits< gray_pixel_16, uint_16, color_type_gray >
96 {
97 };
98
102 template< int bits >
103 struct pixel_traits< packed_gray_pixel< 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
png::gray_pixel_16
uint_16 gray_pixel_16
The 16-bit Grayscale pixel type.
Definition: gray_pixel.hpp:49
png::uint_16
png_uint_16 uint_16
Definition: types.hpp:40
pixel_traits.hpp
types.hpp
packed_pixel.hpp
png::gray_pixel_4
packed_gray_pixel< 4 > gray_pixel_4
The 4-bit Grayscale pixel type.
Definition: gray_pixel.hpp:79
png::packed_gray_pixel::packed_gray_pixel
packed_gray_pixel(byte value=0)
Definition: gray_pixel.hpp:60
png::packed_pixel
The packed pixel class template.
Definition: packed_pixel.hpp:56
png::pixel_traits
Pixel traits class template.
Definition: pixel_traits.hpp:48
png::basic_pixel_traits
Basic pixel traits class template.
Definition: pixel_traits.hpp:62
png::packed_gray_pixel
The packed gray pixel class template. The available specializations are for 1-, 2- and 4-bit pixels.
Definition: gray_pixel.hpp:58
png
Definition: color.hpp:37
png::gray_pixel
byte gray_pixel
The 8-bit Grayscale pixel type.
Definition: gray_pixel.hpp:44
png::gray_pixel_1
packed_gray_pixel< 1 > gray_pixel_1
The 1-bit Grayscale pixel type.
Definition: gray_pixel.hpp:69
png::gray_pixel_2
packed_gray_pixel< 2 > gray_pixel_2
The 2-bit Grayscale pixel type.
Definition: gray_pixel.hpp:74