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- <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright 2005-2007 Adobe Systems Incorporated</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">//</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <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> <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> <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> <span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#ifndef BOOST_GIL_IO_DYNAMIC_IO_NEW_HPP</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#define BOOST_GIL_IO_DYNAMIC_IO_NEW_HPP</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <boost/gil/extension/dynamic_image/dynamic_image_all.hpp></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <boost/gil/detail/mp11.hpp></span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <boost/gil/io/error.hpp></span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <type_traits></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil {</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">namespace </span>detail {</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">template</span> <<span class="keywordtype">long</span> N></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">struct </span>construct_matched_t</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> {</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Images,<span class="keyword">typename</span> Pred></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> apply(any_image<Images>& img, Pred pred)</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  {</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keywordflow">if</span> (pred.template apply<mp11::mp_at_c<Images, N-1>>())</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  {</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keyword">using</span> image_t = mp11::mp_at_c<Images, N-1>;</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  image_t x;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  img = std::move(x);</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  }</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordflow">return</span> construct_matched_t<N-1>::apply(img, pred);</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  }</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> };</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">template</span> <></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">struct </span>construct_matched_t<0></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> {</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Images,<span class="keyword">typename</span> Pred></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> apply(any_image<Images>&,Pred) { <span class="keywordflow">return</span> <span class="keyword">false</span>; }</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> };</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment">// A function object that can be passed to apply_operation.</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment">// Given a predicate IsSupported taking a view type and returning an boolean integral coonstant,</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment">// calls the apply method of OpClass with the view if the given view IsSupported, or throws an exception otherwise</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IsSupported, <span class="keyword">typename</span> OpClass></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">class </span>dynamic_io_fnobj</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> {</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  OpClass* _op;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordtype">void</span> apply(View <span class="keyword">const</span>& <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>, std::true_type) { _op->apply(<a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>); }</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View, <span class="keyword">typename</span> Info></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordtype">void</span> apply(View <span class="keyword">const</span>& <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>, Info <span class="keyword">const</span> & info, <span class="keyword">const</span> std::true_type) { _op->apply(<a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>, info); }</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordtype">void</span> apply(View <span class="keyword">const</span>& <span class="comment">/* view */</span>, std::false_type)</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  {</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  io_error(<span class="stringliteral">"dynamic_io: unsupported view type for the given file format"</span>);</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  }</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View, <span class="keyword">typename</span> Info ></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordtype">void</span> apply(View <span class="keyword">const</span>& <span class="comment">/* view */</span>, Info <span class="keyword">const</span>& <span class="comment">/* info */</span>, <span class="keyword">const</span> std::false_type)</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  {</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  io_error(<span class="stringliteral">"dynamic_io: unsupported view type for the given file format"</span>);</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  }</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  dynamic_io_fnobj(OpClass* op) : _op(op) {}</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">using</span> result_type = void;</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordtype">void</span> operator()(View <span class="keyword">const</span>& <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>)</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  {</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  apply(<a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>, <span class="keyword">typename</span> IsSupported::template apply<View>::type());</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  }</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">template</span>< <span class="keyword">typename</span> View, <span class="keyword">typename</span> Info ></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordtype">void</span> operator()(View <span class="keyword">const</span>& <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>, Info <span class="keyword">const</span>& info)</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  {</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  apply(<a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>, info, <span class="keyword">typename</span> IsSupported::template apply<View>::type());</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  }</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> };</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> } <span class="comment">// namespace detail</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Images,<span class="keyword">typename</span> Pred></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> construct_matched(any_image<Images>& img, Pred pred)</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> {</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  constexpr <span class="keyword">auto</span> size = mp11::mp_size<Images>::value;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">return</span> detail::construct_matched_t<size>::apply(img, pred);</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> }</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> } } <span class="comment">// namespace boost::gil</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="group___image_model_html_ga633557dbbff2d21c784b73412b47bb38"><div class="ttname"><a href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">boost::gil::view</a></div><div class="ttdeci">const image< Pixel, IsPlanar, Alloc >::view_t & view(image< Pixel, IsPlanar, Alloc > &img)</div><div class="ttdoc">Returns the non-constant-pixel view of an image.</div><div class="ttdef"><b>Definition:</b> image.hpp:443</div></div>
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