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  47 <div class="title">planar_pixel_iterator.hpp</div>  </div>
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  50 <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 2005-2007 Adobe Systems Incorporated</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_PLANAR_PIXEL_ITERATOR_HPP</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="preprocessor">#define BOOST_GIL_PLANAR_PIXEL_ITERATOR_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/pixel.hpp&gt;</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor">#include &lt;boost/gil/step_iterator.hpp&gt;</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &lt;boost/gil/detail/mp11.hpp&gt;</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;</div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#include &lt;boost/iterator/iterator_facade.hpp&gt;</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;</div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#include &lt;iterator&gt;</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#include &lt;type_traits&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="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil {</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment">//forward declaration (as this file is included in planar_pixel_reference.hpp)</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> ChannelReference, <span class="keyword">typename</span> ColorSpace&gt;</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="keyword">struct </span>planar_pixel_reference;</div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> ChannelPtr, <span class="keyword">typename</span> ColorSpace&gt;</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="keyword">struct </span>planar_pixel_iterator</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;    :</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    iterator_facade</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;    &lt;</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;        planar_pixel_iterator&lt;ChannelPtr, ColorSpace&gt;,</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;        pixel&lt;typename std::iterator_traits&lt;ChannelPtr&gt;::value_type,layout&lt;ColorSpace&gt;&gt;,</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;        std::random_access_iterator_tag,</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;        planar_pixel_reference&lt;typename std::iterator_traits&lt;ChannelPtr&gt;::reference, ColorSpace&gt; const</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;    &gt;,</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;    detail::homogeneous_color_base</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;    &lt;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;        ChannelPtr,</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;        layout&lt;ColorSpace&gt;,</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;        mp11::mp_size&lt;ColorSpace&gt;::value</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    &gt;</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;{</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    <span class="keyword">using</span> parent_t = iterator_facade</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;        &lt;</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;            planar_pixel_iterator&lt;ChannelPtr, ColorSpace&gt;,</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;            pixel&lt;typename std::iterator_traits&lt;ChannelPtr&gt;::value_type,layout&lt;ColorSpace&gt;&gt;,</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;            std::random_access_iterator_tag,</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;            planar_pixel_reference&lt;typename std::iterator_traits&lt;ChannelPtr&gt;::reference, ColorSpace&gt; <span class="keyword">const</span></div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;        &gt;;</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    <span class="keyword">using</span> color_base_parent_t = detail::homogeneous_color_base</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;        &lt;</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;            ChannelPtr,</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;            layout&lt;ColorSpace&gt;,</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;            mp11::mp_size&lt;ColorSpace&gt;::value</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;        &gt;;</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    <span class="keyword">using</span> channel_t = <span class="keyword">typename</span> std::iterator_traits&lt;ChannelPtr&gt;::value_type;</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    <span class="keyword">using</span> value_type = <span class="keyword">typename</span> parent_t::value_type;</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    <span class="keyword">using</span> reference = <span class="keyword">typename</span> parent_t::reference;</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    <span class="keyword">using</span> difference_type = <span class="keyword">typename</span> parent_t::difference_type;</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;    planar_pixel_iterator() : color_base_parent_t(0) {}</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    planar_pixel_iterator(<span class="keywordtype">bool</span>) {}        <span class="comment">// constructor that does not fill with zero (for performance)</span></div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;    planar_pixel_iterator(<span class="keyword">const</span> ChannelPtr&amp; v0, <span class="keyword">const</span> ChannelPtr&amp; v1) : color_base_parent_t(v0,v1) {}</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    planar_pixel_iterator(<span class="keyword">const</span> ChannelPtr&amp; v0, <span class="keyword">const</span> ChannelPtr&amp; v1, <span class="keyword">const</span> ChannelPtr&amp; v2) : color_base_parent_t(v0,v1,v2) {}</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    planar_pixel_iterator(<span class="keyword">const</span> ChannelPtr&amp; v0, <span class="keyword">const</span> ChannelPtr&amp; v1, <span class="keyword">const</span> ChannelPtr&amp; v2, <span class="keyword">const</span> ChannelPtr&amp; v3) : color_base_parent_t(v0,v1,v2,v3) {}</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    planar_pixel_iterator(<span class="keyword">const</span> ChannelPtr&amp; v0, <span class="keyword">const</span> ChannelPtr&amp; v1, <span class="keyword">const</span> ChannelPtr&amp; v2, <span class="keyword">const</span> ChannelPtr&amp; v3, <span class="keyword">const</span> ChannelPtr&amp; v4) : color_base_parent_t(v0,v1,v2,v3,v4) {}</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="keyword">template</span> &lt;<span class="keyword">typename</span> IC1,<span class="keyword">typename</span> C1&gt;</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    planar_pixel_iterator(<span class="keyword">const</span> planar_pixel_iterator&lt;IC1,C1&gt;&amp; ptr) : color_base_parent_t(ptr) {}</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    <span class="keyword">template</span> &lt;<span class="keyword">typename</span> P&gt;</div><div class="line"><a name="l00097"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1planar__pixel__iterator.html#a17b05b4a8da5c31609da1e02bd7ebed1">   97</a></span>&#160;    <a class="code" href="structboost_1_1gil_1_1planar__pixel__iterator.html#a17b05b4a8da5c31609da1e02bd7ebed1">planar_pixel_iterator</a>(P* pix) : color_base_parent_t(pix, true) {</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;        function_requires&lt;PixelsCompatibleConcept&lt;P,value_type&gt; &gt;();</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    }</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;    <span class="keyword">struct </span>address_of { <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt; T* operator()(T&amp; t) { <span class="keywordflow">return</span> &amp;t; } };</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> P&gt;</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    planar_pixel_iterator&amp; operator=(P* pix) {</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;        function_requires&lt;PixelsCompatibleConcept&lt;P,value_type&gt; &gt;();</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;        static_transform(*pix,*<span class="keyword">this</span>, address_of());</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;        <span class="comment">// PERFORMANCE_CHECK: Compare to this:</span></div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;        <span class="comment">//this-&gt;template semantic_at_c&lt;0&gt;()=&amp;pix-&gt;template semantic_at_c&lt;0&gt;();</span></div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;        <span class="comment">//this-&gt;template semantic_at_c&lt;1&gt;()=&amp;pix-&gt;template semantic_at_c&lt;1&gt;();</span></div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;        <span class="comment">//this-&gt;template semantic_at_c&lt;2&gt;()=&amp;pix-&gt;template semantic_at_c&lt;2&gt;();</span></div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;        <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;    }</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;</div><div class="line"><a name="l00116"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1planar__pixel__iterator.html#a16d8e6857dd561244ca73764f2b94801">  116</a></span>&#160;    reference <a class="code" href="structboost_1_1gil_1_1planar__pixel__iterator.html#a16d8e6857dd561244ca73764f2b94801">operator[]</a>(difference_type d)<span class="keyword">       const </span>{ <span class="keywordflow">return</span> memunit_advanced_ref(*<span class="keyword">this</span>,d*<span class="keyword">sizeof</span>(channel_t));}</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;    reference operator-&gt;()<span class="keyword">                        const </span>{ <span class="keywordflow">return</span> **<span class="keyword">this</span>; }</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;    <span class="comment">// PERFORMANCE_CHECK: Remove?</span></div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;    <span class="keywordtype">bool</span> operator&lt; (<span class="keyword">const</span> planar_pixel_iterator&amp; ptr)<span class="keyword">   const </span>{ <span class="keywordflow">return</span> gil::at_c&lt;0&gt;(*<span class="keyword">this</span>)&lt; gil::at_c&lt;0&gt;(ptr); }</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;    <span class="keywordtype">bool</span> operator!=(<span class="keyword">const</span> planar_pixel_iterator&amp; ptr)<span class="keyword">   const </span>{ <span class="keywordflow">return</span> gil::at_c&lt;0&gt;(*<span class="keyword">this</span>)!=gil::at_c&lt;0&gt;(ptr); }</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;    <span class="keyword">friend</span> <span class="keyword">class </span>boost::iterator_core_access;</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    <span class="keywordtype">void</span> increment()            { static_transform(*<span class="keyword">this</span>,*<span class="keyword">this</span>,detail::inc&lt;ChannelPtr&gt;()); }</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;    <span class="keywordtype">void</span> decrement()            { static_transform(*<span class="keyword">this</span>,*<span class="keyword">this</span>,detail::dec&lt;ChannelPtr&gt;()); }</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;    <span class="keywordtype">void</span> advance(std::ptrdiff_t d){ static_transform(*<span class="keyword">this</span>,*<span class="keyword">this</span>,std::bind(detail::plus_asymmetric&lt;ChannelPtr,std::ptrdiff_t&gt;(),std::placeholders::_1,d)); }</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;    reference dereference()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> deref&lt;reference&gt;(); }</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    std::ptrdiff_t distance_to(<span class="keyword">const</span> planar_pixel_iterator&amp; it)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> gil::at_c&lt;0&gt;(it)-gil::at_c&lt;0&gt;(*<span class="keyword">this</span>); }</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;    <span class="keywordtype">bool</span> <a class="code" href="group___s_t_l_optimizations.html#ga2902a23650ef266e80874ce5df076079">equal</a>(<span class="keyword">const</span> planar_pixel_iterator&amp; it)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> gil::at_c&lt;0&gt;(*<span class="keyword">this</span>)==gil::at_c&lt;0&gt;(it); }</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;};</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;<span class="keyword">namespace </span>detail {</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> I&gt;</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;<span class="keyword">struct </span>channel_iterator_is_mutable : std::true_type {};</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> I&gt;</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;<span class="keyword">struct </span>channel_iterator_is_mutable&lt;I const*&gt; : std::false_type {};</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;} <span class="comment">// namespace detail</span></div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> IC, <span class="keyword">typename</span> C&gt;</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;<span class="keyword">struct </span>const_iterator_type&lt;planar_pixel_iterator&lt;IC,C&gt; &gt; {</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    <span class="keyword">using</span> channel_t = <span class="keyword">typename</span> std::iterator_traits&lt;IC&gt;::value_type;</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;    <span class="keyword">using</span> type = planar_pixel_iterator&lt;typename channel_traits&lt;channel_t&gt;::const_pointer,C&gt;;</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;};</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;<span class="comment">// The default implementation when the iterator is a C pointer is to use the standard constness semantics</span></div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> IC, <span class="keyword">typename</span> C&gt;</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;<span class="keyword">struct </span>iterator_is_mutable&lt;planar_pixel_iterator&lt;IC,C&gt; &gt; : <span class="keyword">public</span> detail::channel_iterator_is_mutable&lt;IC&gt; {};</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;<span class="comment">//  ColorBasedConcept</span></div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> IC, <span class="keyword">typename</span> C, <span class="keywordtype">int</span> K&gt;</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;<span class="keyword">struct </span>kth_element_type&lt;planar_pixel_iterator&lt;IC, C&gt;, K&gt;</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;{</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    <span class="keyword">using</span> type = IC;</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;};</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> IC, <span class="keyword">typename</span> C, <span class="keywordtype">int</span> K&gt;</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;<span class="keyword">struct </span>kth_element_reference_type&lt;planar_pixel_iterator&lt;IC, C&gt;, K&gt;</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;    : std::add_lvalue_reference&lt;IC&gt; {};</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> IC, <span class="keyword">typename</span> C, <span class="keywordtype">int</span> K&gt;</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;<span class="keyword">struct </span>kth_element_const_reference_type&lt;planar_pixel_iterator&lt;IC, C&gt;, K&gt;</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;    : std::add_lvalue_reference&lt;typename std::add_const&lt;IC&gt;::type&gt;</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;{};</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;<span class="comment">//  HomogeneousPixelBasedConcept</span></div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> IC, <span class="keyword">typename</span> C&gt;</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;<span class="keyword">struct </span>color_space_type&lt;planar_pixel_iterator&lt;IC,C&gt;&gt;</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;{</div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;    <span class="keyword">using</span> type = C;</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;};</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;</div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> IC, <span class="keyword">typename</span> C&gt;</div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;<span class="keyword">struct </span>channel_mapping_type&lt;planar_pixel_iterator&lt;IC, C&gt;&gt;</div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;    : channel_mapping_type&lt;typename planar_pixel_iterator&lt;IC,C&gt;::value_type&gt;</div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;{};</div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> IC, <span class="keyword">typename</span> C&gt;</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;<span class="keyword">struct </span>is_planar&lt;planar_pixel_iterator&lt;IC, C&gt;&gt; : std::true_type {};</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> IC, <span class="keyword">typename</span> C&gt;</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;<span class="keyword">struct </span>channel_type&lt;planar_pixel_iterator&lt;IC, C&gt;&gt;</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;{</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;    <span class="keyword">using</span> type = <span class="keyword">typename</span> std::iterator_traits&lt;IC&gt;::value_type;</div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;};</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;<span class="comment">//  MemoryBasedIteratorConcept</span></div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> IC, <span class="keyword">typename</span> C&gt;</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;<span class="keyword">inline</span> std::ptrdiff_t memunit_step(<span class="keyword">const</span> planar_pixel_iterator&lt;IC,C&gt;&amp;) { <span class="keywordflow">return</span> <span class="keyword">sizeof</span>(<span class="keyword">typename</span> std::iterator_traits&lt;IC&gt;::value_type); }</div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> IC, <span class="keyword">typename</span> C&gt;</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;<span class="keyword">inline</span> std::ptrdiff_t memunit_distance(<span class="keyword">const</span> planar_pixel_iterator&lt;IC,C&gt;&amp; p1, <span class="keyword">const</span> planar_pixel_iterator&lt;IC,C&gt;&amp; p2) {</div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;    <span class="keywordflow">return</span> memunit_distance(gil::at_c&lt;0&gt;(p1),gil::at_c&lt;0&gt;(p2));</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;}</div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> IC&gt;</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;<span class="keyword">struct </span>memunit_advance_fn {</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;    memunit_advance_fn(std::ptrdiff_t diff) : _diff(diff) {}</div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;    IC operator()(<span class="keyword">const</span> IC&amp; p)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> memunit_advanced(p,_diff); }</div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;    std::ptrdiff_t _diff;</div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;};</div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;</div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> IC, <span class="keyword">typename</span> C&gt;</div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> memunit_advance(planar_pixel_iterator&lt;IC,C&gt;&amp; p, std::ptrdiff_t diff) {</div><div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;    static_transform(p, p, memunit_advance_fn&lt;IC&gt;(diff));</div><div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;}</div><div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;</div><div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> IC, <span class="keyword">typename</span> C&gt;</div><div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;<span class="keyword">inline</span> planar_pixel_iterator&lt;IC,C&gt; memunit_advanced(<span class="keyword">const</span> planar_pixel_iterator&lt;IC,C&gt;&amp; p, std::ptrdiff_t diff) {</div><div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;    planar_pixel_iterator&lt;IC,C&gt; ret=p;</div><div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;    memunit_advance(ret, diff);</div><div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;    <span class="keywordflow">return</span> ret;</div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;}</div><div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;</div><div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> ChannelPtr, <span class="keyword">typename</span> ColorSpace&gt;</div><div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;<span class="keyword">inline</span> planar_pixel_reference&lt;typename std::iterator_traits&lt;ChannelPtr&gt;::reference,ColorSpace&gt;</div><div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;    memunit_advanced_ref(<span class="keyword">const</span> planar_pixel_iterator&lt;ChannelPtr,ColorSpace&gt;&amp; ptr, std::ptrdiff_t diff) {</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;    <span class="keywordflow">return</span> planar_pixel_reference&lt;typename std::iterator_traits&lt;ChannelPtr&gt;::reference,ColorSpace&gt;(ptr, diff);</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;}</div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;</div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;<span class="comment">//  HasDynamicXStepTypeConcept</span></div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> IC, <span class="keyword">typename</span> C&gt;</div><div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;<span class="keyword">struct </span>dynamic_x_step_type&lt;planar_pixel_iterator&lt;IC,C&gt; &gt; {</div><div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;    <span class="keyword">using</span> type = memory_based_step_iterator&lt;planar_pixel_iterator&lt;IC,C&gt;&gt;;</div><div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;};</div><div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;} }  <span class="comment">// namespace boost::gil</span></div><div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;</div><div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;<span class="preprocessor">#endif</span></div><div class="ttc" id="group___s_t_l_optimizations_html_ga2902a23650ef266e80874ce5df076079"><div class="ttname"><a href="group___s_t_l_optimizations.html#ga2902a23650ef266e80874ce5df076079">std::equal</a></div><div class="ttdeci">BOOST_FORCEINLINE bool equal(boost::gil::iterator_from_2d&lt; Loc1 &gt; first, boost::gil::iterator_from_2d&lt; Loc1 &gt; last, boost::gil::iterator_from_2d&lt; Loc2 &gt; first2)</div><div class="ttdoc">std::equal(I1,I1,I2) with I1 and I2 being a iterator_from_2d</div><div class="ttdef"><b>Definition:</b> algorithm.hpp:1029</div></div>
  51 <div class="ttc" id="structboost_1_1gil_1_1planar__pixel__iterator_html_a17b05b4a8da5c31609da1e02bd7ebed1"><div class="ttname"><a href="structboost_1_1gil_1_1planar__pixel__iterator.html#a17b05b4a8da5c31609da1e02bd7ebed1">boost::gil::planar_pixel_iterator::planar_pixel_iterator</a></div><div class="ttdeci">planar_pixel_iterator(P *pix)</div><div class="ttdef"><b>Definition:</b> planar_pixel_iterator.hpp:97</div></div>
  52 <div class="ttc" id="structboost_1_1gil_1_1planar__pixel__iterator_html_a16d8e6857dd561244ca73764f2b94801"><div class="ttname"><a href="structboost_1_1gil_1_1planar__pixel__iterator.html#a16d8e6857dd561244ca73764f2b94801">boost::gil::planar_pixel_iterator::operator[]</a></div><div class="ttdeci">reference operator[](difference_type d) const</div><div class="ttdef"><b>Definition:</b> planar_pixel_iterator.hpp:116</div></div>
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