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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 2007-2008 Christian Henning, Andreas Pokorny</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_CONVERSION_POLICIES_HPP</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#define BOOST_GIL_IO_CONVERSION_POLICIES_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/image_view_factory.hpp></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <boost/gil/detail/mp11.hpp></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <boost/gil/io/error.hpp></span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <algorithm></span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <iterator></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <type_traits></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span>boost{ <span class="keyword">namespace </span>gil { <span class="keyword">namespace </span>detail {</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">struct </span>read_and_no_convert</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> {</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keyword">using</span> color_converter_type = <span class="keywordtype">void</span> *;</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> InIterator, <span class="keyword">typename</span> OutIterator></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keywordtype">void</span> read(</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  InIterator <span class="keyword">const</span>& <span class="comment">/*begin*/</span>, InIterator <span class="keyword">const</span>& <span class="comment">/*end*/</span> , OutIterator <span class="comment">/*out*/</span>,</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keyword">typename</span> std::enable_if</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  mp11::mp_not</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  pixels_are_compatible</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="keyword">typename</span> std::iterator_traits<InIterator>::value_type,</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keyword">typename</span> std::iterator_traits<OutIterator>::value_type</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>  >::value</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  >::type* <span class="comment">/*dummy*/</span> = <span class="keyword">nullptr</span>)</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  {</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  io_error(<span class="stringliteral">"Data cannot be copied because the pixels are incompatible."</span>);</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  }</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> InIterator, <span class="keyword">typename</span> OutIterator></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordtype">void</span> read(InIterator <span class="keyword">const</span>& begin, InIterator <span class="keyword">const</span>& end, OutIterator out,</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">typename</span> std::enable_if</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  pixels_are_compatible</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">typename</span> std::iterator_traits<InIterator>::value_type,</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">typename</span> std::iterator_traits<OutIterator>::value_type</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  >::value</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  >::type* <span class="comment">/*dummy*/</span> = <span class="keyword">nullptr</span>)</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>  <a class="code" href="group___s_t_l_optimizations.html#ga8e23fe06d31c7cce605e4bf8255e1ee9">std::copy</a>(begin, end, out);</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  }</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> </div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="keyword">template</span><<span class="keyword">typename</span> CC></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">struct </span>read_and_convert</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> {</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">using</span> color_converter_type = default_color_converter;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  CC _cc;</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>  read_and_convert()</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  {}</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  read_and_convert( <span class="keyword">const</span> color_converter_type& cc )</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  : _cc( cc )</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">template</span>< <span class="keyword">typename</span> InIterator</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  , <span class="keyword">typename</span> OutIterator</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="keywordtype">void</span> read( <span class="keyword">const</span> InIterator& begin</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  , <span class="keyword">const</span> InIterator& end</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  , OutIterator out</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  )</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>  <span class="keyword">using</span> deref_t = color_convert_deref_fn<typename std::iterator_traits<InIterator>::reference</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  , <span class="keyword">typename</span> std::iterator_traits<OutIterator>::value_type <span class="comment">//reference?</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  , CC</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  >;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  std::transform( begin</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  , end</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  , out</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  , deref_t( _cc )</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>  }</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> };</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="keyword">template</span>< <span class="keyword">typename</span> Conversion_Policy ></div><div class="line"><a name="l00097"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1detail_1_1is__read__only.html"> 97</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1detail_1_1is__read__only.html">is_read_only</a> : std::false_type {};</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="keyword">template</span><></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1detail_1_1is__read__only.html">is_read_only</a><detail::read_and_no_convert> : std::true_type {};</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 detail</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> } <span class="comment">// namespace gil</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> } <span class="comment">// namespace boost</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="structboost_1_1gil_1_1detail_1_1is__read__only_html"><div class="ttname"><a href="structboost_1_1gil_1_1detail_1_1is__read__only.html">boost::gil::detail::is_read_only</a></div><div class="ttdoc">Determines if reader type is read only ( no conversion ).</div><div class="ttdef"><b>Definition:</b> conversion_policies.hpp:97</div></div>
- <div class="ttc" id="group___s_t_l_optimizations_html_ga8e23fe06d31c7cce605e4bf8255e1ee9"><div class="ttname"><a href="group___s_t_l_optimizations.html#ga8e23fe06d31c7cce605e4bf8255e1ee9">std::copy</a></div><div class="ttdeci">BOOST_FORCEINLINE auto copy(boost::gil::pixel< T, CS > *first, boost::gil::pixel< T, CS > *last, boost::gil::pixel< T, CS > *dst) -> boost::gil::pixel< T, CS > *</div><div class="ttdoc">Copy when both src and dst are interleaved and of the same type can be just memmove.</div><div class="ttdef"><b>Definition:</b> algorithm.hpp:139</div></div>
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