Generic Image Library: base.hpp Source File

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base.hpp
1//
2// Copyright 2007-2008 Christian Henning, Andreas Pokorny, Lubomir Bourdev
3//
4// Distributed under the Boost Software License, Version 1.0
5// See accompanying file LICENSE_1_0.txt or copy at
6// http://www.boost.org/LICENSE_1_0.txt
7//
8#ifndef BOOST_GIL_IO_BASE_HPP
9#define BOOST_GIL_IO_BASE_HPP
10
11#include <boost/gil/extension/toolbox/toolbox.hpp>
12
13#include <boost/gil/bit_aligned_pixel_reference.hpp>
14#include <boost/gil/bit_aligned_pixel_iterator.hpp>
15#include <boost/gil/color_convert.hpp>
16#include <boost/gil/utilities.hpp>
17#include <boost/gil/io/error.hpp>
18#include <boost/gil/io/typedefs.hpp>
19
20#include <istream>
21#include <ostream>
22#include <type_traits>
23#include <vector>
24
25namespace boost { namespace gil {
26
27struct format_tag {};
28
29template< typename Property >
30struct property_base
31{
32 using type = Property;
33};
34
35template<typename FormatTag>
36struct is_format_tag : std::is_base_of<format_tag, FormatTag> {};
37
38struct image_read_settings_base
39{
40protected:
41
42 image_read_settings_base()
43 : _top_left( 0, 0 )
44 , _dim ( 0, 0 )
45 {}
46
47 image_read_settings_base( point_t const& top_left
48 , point_t const& dim
49 )
50 : _top_left( top_left )
51 , _dim ( dim )
52 {}
53
54
55public:
56
57 void set( point_t const& top_left
58 , point_t const& dim
59 )
60 {
61 _top_left = top_left;
62 _dim = dim;
63 }
64
65public:
66
67 point_t _top_left;
68 point_t _dim;
69};
70
76// Depending on image type the parameter Pixel can be a reference type
77// for bit_aligned images or a pixel for byte images.
78 template< typename Pixel, typename FormatTag > struct is_read_supported {};
79template< typename Pixel, typename FormatTag > struct is_write_supported {};
80
81
82namespace detail {
83
84template< typename Property >
85struct property_base
86{
87 using type = Property;
88};
89
90} // namespace detail
91
92struct read_support_true { static constexpr bool is_supported = true; };
93struct read_support_false { static constexpr bool is_supported = false; };
94struct write_support_true { static constexpr bool is_supported = true; };
95struct write_support_false{ static constexpr bool is_supported = false; };
96
97class no_log {};
98
99template< typename Device, typename FormatTag > struct reader_backend;
100template< typename Device, typename FormatTag > struct writer_backend;
101
102template< typename FormatTag > struct image_read_info;
103template< typename FormatTag > struct image_read_settings;
104template< typename FormatTag, typename Log = no_log > struct image_write_info;
105
106} // namespace gil
107} // namespace boost
108
109#endif
boost
defined(BOOST_NO_CXX17_HDR_MEMORY_RESOURCE)
Definition algorithm.hpp:36
boost::gil::is_read_supported
Definition base.hpp:78