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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">// Copyright 2007-2008 Christian Henning, Andreas Pokorny, Lubomir Bourdev</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">// Distributed under the Boost Software License, Version 1.0</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">// See accompanying file LICENSE_1_0.txt or copy at</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">// http://www.boost.org/LICENSE_1_0.txt</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="preprocessor">#ifndef BOOST_GIL_IO_BASE_HPP</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="preprocessor">#define BOOST_GIL_IO_BASE_HPP</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;</div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="preprocessor">#include &lt;boost/gil/extension/toolbox/toolbox.hpp&gt;</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;</div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &lt;boost/gil/bit_aligned_pixel_reference.hpp&gt;</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &lt;boost/gil/bit_aligned_pixel_iterator.hpp&gt;</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#include &lt;boost/gil/color_convert.hpp&gt;</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#include &lt;boost/gil/utilities.hpp&gt;</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#include &lt;boost/gil/io/error.hpp&gt;</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#include &lt;boost/gil/io/typedefs.hpp&gt;</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;</div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#include &lt;istream&gt;</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#include &lt;ostream&gt;</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#include &lt;type_traits&gt;</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;</div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil {</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="keyword">struct </span>format_tag {};</div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;</div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">typename</span> Property &gt;</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="keyword">struct </span>property_base</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;{</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;    <span class="keyword">using</span> type = Property;</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;};</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> FormatTag&gt;</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="keyword">struct </span>is_format_tag : std::is_base_of&lt;format_tag, FormatTag&gt; {};</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="keyword">struct </span>image_read_settings_base</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;{</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="keyword">protected</span>:</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;    image_read_settings_base()</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;    : _top_left( 0, 0 )</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;    , _dim     ( 0, 0 )</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    {}</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;    image_read_settings_base( <span class="keyword">const</span> point_t&amp; top_left</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;                            , <span class="keyword">const</span> point_t&amp; dim</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;                            )</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    : _top_left( top_left )</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;    , _dim     ( dim      )</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;    {}</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    <span class="keywordtype">void</span> set( <span class="keyword">const</span> point_t&amp; top_left</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;            , <span class="keyword">const</span> point_t&amp; dim</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;            )</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    {</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;        _top_left = top_left;</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;        _dim      = dim;</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;    }</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;    point_t _top_left;</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    point_t _dim;</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;};</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;<span class="comment">// Depending on image type the parameter Pixel can be a reference type</span></div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="comment">// for bit_aligned images or a pixel for byte images.</span></div><div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1is__read__supported.html">   78</a></span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">typename</span> Pixel, <span class="keyword">typename</span> FormatTag &gt; <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1is__read__supported.html">is_read_supported</a> {};</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">typename</span> Pixel, <span class="keyword">typename</span> FormatTag &gt; <span class="keyword">struct </span>is_write_supported {};</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="keyword">namespace </span>detail {</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">typename</span> Property &gt;</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;<span class="keyword">struct </span>property_base</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;{</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    <span class="keyword">using</span> type = Property;</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;};</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;} <span class="comment">// namespace detail</span></div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;<span class="keyword">struct </span>read_support_true  { <span class="keyword">static</span> constexpr <span class="keywordtype">bool</span> is_supported = <span class="keyword">true</span>; };</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;<span class="keyword">struct </span>read_support_false { <span class="keyword">static</span> constexpr <span class="keywordtype">bool</span> is_supported = <span class="keyword">false</span>; };</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;<span class="keyword">struct </span>write_support_true { <span class="keyword">static</span> constexpr <span class="keywordtype">bool</span> is_supported = <span class="keyword">true</span>; };</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;<span class="keyword">struct </span>write_support_false{ <span class="keyword">static</span> constexpr <span class="keywordtype">bool</span> is_supported = <span class="keyword">false</span>; };</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;<span class="keyword">class </span>no_log {};</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">typename</span> Device, <span class="keyword">typename</span> FormatTag &gt; <span class="keyword">struct </span>reader_backend;</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">typename</span> Device, <span class="keyword">typename</span> FormatTag &gt; <span class="keyword">struct </span>writer_backend;</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">typename</span> FormatTag &gt; <span class="keyword">struct </span>image_read_info;</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">typename</span> FormatTag &gt; <span class="keyword">struct </span>image_read_settings;</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">typename</span> FormatTag, <span class="keyword">typename</span> Log = no_log &gt; <span class="keyword">struct </span>image_write_info;</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;} <span class="comment">// namespace gil</span></div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;} <span class="comment">// namespace boost</span></div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;<span class="preprocessor">#endif</span></div><div class="ttc" id="structboost_1_1gil_1_1is__read__supported_html"><div class="ttname"><a href="structboost_1_1gil_1_1is__read__supported.html">boost::gil::is_read_supported</a></div><div class="ttdef"><b>Definition:</b> base.hpp:78</div></div>
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