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<div class="headertitle"><div class="title">packed_pixel.hpp</div></div>
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<div class="contents">
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">//</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment">// Copyright 2005-2007 Adobe Systems Incorporated</span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment">//</span></div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment">// Distributed under the Boost Software License, Version 1.0</span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment">// See accompanying file LICENSE_1_0.txt or copy at</span></div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment">// http://www.boost.org/LICENSE_1_0.txt</span></div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment">//</span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#ifndef BOOST_GIL_PACKED_PIXEL_HPP</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#define BOOST_GIL_PACKED_PIXEL_HPP</span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> </div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include <boost/gil/pixel.hpp></span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include <boost/gil/detail/mp11.hpp></span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include <functional></span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#include <type_traits></span></div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> </div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceboost.html">boost</a> { <span class="keyword">namespace </span>gil {</div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> </div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> </div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="keyword">template</span> <<span class="keyword">typename</span> BitField, <span class="keyword">typename</span> ChannelRefs, <span class="keyword">typename</span> Layout></div>
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<div class="foldopen" id="foldopen00049" data-start="{" data-end="};">
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1packed__pixel.html"> 49</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structboost_1_1gil_1_1packed__pixel.html">packed_pixel</a></div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span>{</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> BitField _bitfield{0}; <span class="comment">// TODO: Make private</span></div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> </div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="keyword">using </span>layout_t = Layout;</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keyword">using </span><a class="code hl_struct" href="structboost_1_1gil_1_1packed__pixel.html">value_type</a> = <a class="code hl_struct" href="structboost_1_1gil_1_1packed__pixel.html">packed_pixel<BitField, ChannelRefs, Layout></a>;</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keyword">using </span><a class="code hl_struct" href="structboost_1_1gil_1_1packed__pixel.html">reference</a> = <a class="code hl_struct" href="structboost_1_1gil_1_1packed__pixel.html">value_type</a>&;</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="keyword">using </span>const_reference = <a class="code hl_struct" href="structboost_1_1gil_1_1packed__pixel.html">value_type</a> <span class="keyword">const</span>&;</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> </div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">bool</span> is_mutable =</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> channel_traits<mp11::mp_front<ChannelRefs>>::is_mutable;</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> </div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <a class="code hl_struct" href="structboost_1_1gil_1_1packed__pixel.html">packed_pixel</a>() = <span class="keywordflow">default</span>;</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keyword">explicit</span> <a class="code hl_struct" href="structboost_1_1gil_1_1packed__pixel.html">packed_pixel</a>(<span class="keyword">const</span> BitField& bitfield) : _bitfield(bitfield) {}</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> </div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Pixel></div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <a class="code hl_struct" href="structboost_1_1gil_1_1packed__pixel.html">packed_pixel</a>(Pixel <span class="keyword">const</span>& p,</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keyword">typename</span> std::enable_if<is_pixel<Pixel>::value>::type* <span class="comment">/*dummy*/</span> = <span class="keyword">nullptr</span>)</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> {</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> check_compatible<Pixel>();</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> static_copy(p, *<span class="keyword">this</span>);</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> }</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> </div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <a class="code hl_struct" href="structboost_1_1gil_1_1packed__pixel.html">packed_pixel</a>(<span class="keywordtype">int</span> chan0, <span class="keywordtype">int</span> chan1)</div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> : _bitfield(0)</div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> {</div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keyword">static_assert</span>(<a class="code hl_struct" href="structboost_1_1gil_1_1num__channels.html">num_channels<packed_pixel>::value</a> == 2, <span class="stringliteral">""</span>);</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> gil::at_c<0>(*<span class="keyword">this</span>) = chan0;</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> gil::at_c<1>(*<span class="keyword">this</span>) = chan1;</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> }</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> </div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <a class="code hl_struct" href="structboost_1_1gil_1_1packed__pixel.html">packed_pixel</a>(<span class="keywordtype">int</span> chan0, <span class="keywordtype">int</span> chan1, <span class="keywordtype">int</span> chan2)</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> : _bitfield(0)</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> {</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="keyword">static_assert</span>(<a class="code hl_struct" href="structboost_1_1gil_1_1num__channels.html">num_channels<packed_pixel>::value</a> == 3, <span class="stringliteral">""</span>);</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> gil::at_c<0>(*<span class="keyword">this</span>) = chan0;</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> gil::at_c<1>(*<span class="keyword">this</span>) = chan1;</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> gil::at_c<2>(*<span class="keyword">this</span>) = chan2;</div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> }</div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> </div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <a class="code hl_struct" href="structboost_1_1gil_1_1packed__pixel.html">packed_pixel</a>(<span class="keywordtype">int</span> chan0, <span class="keywordtype">int</span> chan1, <span class="keywordtype">int</span> chan2, <span class="keywordtype">int</span> chan3)</div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> : _bitfield(0)</div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> {</div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keyword">static_assert</span>(<a class="code hl_struct" href="structboost_1_1gil_1_1num__channels.html">num_channels<packed_pixel>::value</a> == 4, <span class="stringliteral">""</span>);</div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> gil::at_c<0>(*<span class="keyword">this</span>) = chan0;</div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> gil::at_c<1>(*<span class="keyword">this</span>) = chan1;</div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> gil::at_c<2>(*<span class="keyword">this</span>) = chan2;</div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> gil::at_c<3>(*<span class="keyword">this</span>) = chan3;</div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> }</div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> </div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <a class="code hl_struct" href="structboost_1_1gil_1_1packed__pixel.html">packed_pixel</a>(<span class="keywordtype">int</span> chan0, <span class="keywordtype">int</span> chan1, <span class="keywordtype">int</span> chan2, <span class="keywordtype">int</span> chan3, <span class="keywordtype">int</span> chan4)</div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> : _bitfield(0)</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> {</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keyword">static_assert</span>(<a class="code hl_struct" href="structboost_1_1gil_1_1num__channels.html">num_channels<packed_pixel>::value</a> == 5, <span class="stringliteral">""</span>);</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> gil::at_c<0>(*<span class="keyword">this</span>) = chan0;</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> gil::at_c<1>(*<span class="keyword">this</span>) = chan1;</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> gil::at_c<2>(*<span class="keyword">this</span>) = chan2;</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> gil::at_c<3>(*<span class="keyword">this</span>) = chan3;</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> gil::at_c<4>(*<span class="keyword">this</span>) = chan4;</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> }</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> </div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Pixel></div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <span class="keyword">auto</span> operator=(Pixel <span class="keyword">const</span>& p) -> <a class="code hl_struct" href="structboost_1_1gil_1_1packed__pixel.html">packed_pixel</a>&</div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> {</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> assign(p, is_pixel<Pixel>());</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> }</div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> </div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Pixel></div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> <span class="keywordtype">bool</span> operator==(Pixel <span class="keyword">const</span>& p)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span><span class="keyword"> </span>{</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="keywordflow">return</span> equal(p, is_pixel<Pixel>());</div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> }</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> </div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Pixel></div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> <span class="keywordtype">bool</span> operator!=(Pixel <span class="keyword">const</span>& p)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> !(*<span class="keyword">this</span>==p); }</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> </div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span><span class="keyword">private</span>:</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Pixel></div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <span class="keyword">static</span> <span class="keywordtype">void</span> check_compatible()</div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> {</div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> gil_function_requires<PixelsCompatibleConcept<Pixel, packed_pixel>>();</div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> }</div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> </div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Pixel></div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="keywordtype">void</span> assign(Pixel <span class="keyword">const</span>& p, std::true_type)</div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> {</div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> check_compatible<Pixel>();</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> static_copy(p, *<span class="keyword">this</span>);</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> }</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> </div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Pixel></div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="keywordtype">bool</span> equal(Pixel <span class="keyword">const</span>& p, std::true_type)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span><span class="keyword"> </span>{</div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> check_compatible<Pixel>();</div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="keywordflow">return</span> static_equal(*<span class="keyword">this</span>, p);</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> }</div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> </div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <span class="comment">// Support for assignment/equality comparison of a channel with a grayscale pixel</span></div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="keyword">static</span> <span class="keywordtype">void</span> check_gray()</div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> {</div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <span class="keyword">static_assert</span>(std::is_same<typename Layout::color_space_t, gray_t>::value, <span class="stringliteral">""</span>);</div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> }</div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> </div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Channel></div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> <span class="keywordtype">void</span> assign(Channel <span class="keyword">const</span>& channel, std::false_type)</div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> {</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> check_gray();</div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> gil::at_c<0>(*<span class="keyword">this</span>) = channel;</div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> }</div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> </div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Channel></div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> <span class="keywordtype">bool</span> equal (Channel <span class="keyword">const</span>& channel, std::false_type)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span><span class="keyword"> </span>{</div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> check_gray();</div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="keywordflow">return</span> gil::at_c<0>(*<span class="keyword">this</span>) == channel;</div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> }</div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> </div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span><span class="keyword">public</span>:</div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <span class="keyword">auto</span> operator=(<span class="keywordtype">int</span> channel) -> <a class="code hl_struct" href="structboost_1_1gil_1_1packed__pixel.html">packed_pixel</a>&</div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> {</div>
|
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> check_gray();</div>
|
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> gil::at_c<0>(*<span class="keyword">this</span>) = channel;</div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> }</div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> </div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> <span class="keywordtype">bool</span> operator==(<span class="keywordtype">int</span> channel)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span><span class="keyword"> </span>{</div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> check_gray();</div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="keywordflow">return</span> gil::at_c<0>(*<span class="keyword">this</span>) == channel;</div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> }</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span>};</div>
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</div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> </div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span><span class="comment">// ColorBasedConcept</span></div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> </div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span><span class="keyword">template</span> <<span class="keyword">typename</span> BitField, <span class="keyword">typename</span> ChannelRefs, <span class="keyword">typename</span> Layout, <span class="keywordtype">int</span> K></div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span><span class="keyword">struct </span>kth_element_type<<a class="code hl_struct" href="structboost_1_1gil_1_1packed__pixel.html">packed_pixel</a><BitField, ChannelRefs, Layout>, K></div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span>{</div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> <span class="keyword">using </span>type = <span class="keyword">typename</span> channel_traits<mp11::mp_at_c<ChannelRefs, K>>::value_type;</div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span>};</div>
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> </div>
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span><span class="keyword">template</span> <<span class="keyword">typename</span> BitField, <span class="keyword">typename</span> ChannelRefs, <span class="keyword">typename</span> Layout, <span class="keywordtype">int</span> K></div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span><span class="keyword">struct </span>kth_element_reference_type<packed_pixel<BitField, ChannelRefs, Layout>, K></div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span>{</div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> <span class="keyword">using </span>type = <span class="keyword">typename</span> channel_traits<mp11::mp_at_c<ChannelRefs, K>>::reference;</div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span>};</div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> </div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span><span class="keyword">template</span> <<span class="keyword">typename</span> BitField, <span class="keyword">typename</span> ChannelRefs, <span class="keyword">typename</span> Layout, <span class="keywordtype">int</span> K></div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span><span class="keyword">struct </span>kth_element_const_reference_type<packed_pixel<BitField, ChannelRefs, Layout>, K></div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span>{</div>
|
|
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> <span class="keyword">using </span>type = <span class="keyword">typename</span> channel_traits<mp11::mp_at_c<ChannelRefs, K>>::const_reference;</div>
|
|
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span>};</div>
|
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> </div>
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|
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span><span class="keyword">template</span> <<span class="keywordtype">int</span> K, <span class="keyword">typename</span> P, <span class="keyword">typename</span> C, <span class="keyword">typename</span> L></div>
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|
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span><span class="keyword">inline</span></div>
|
|
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span><span class="keyword">auto</span> at_c(packed_pixel<P, C, L>& p)</div>
|
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> -> <span class="keyword">typename</span> kth_element_reference_type<packed_pixel<P, C, L>, K>::type</div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span>{</div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> <span class="keywordflow">return</span> <span class="keyword">typename</span> kth_element_reference_type</div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> <</div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> packed_pixel<P, C, L>,</div>
|
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> K</div>
|
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> >::type{&p._bitfield};</div>
|
|
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span>}</div>
|
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> </div>
|
|
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span><span class="keyword">template</span> <<span class="keywordtype">int</span> K, <span class="keyword">typename</span> P, <span class="keyword">typename</span> C, <span class="keyword">typename</span> L></div>
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<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span><span class="keyword">inline</span></div>
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<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span><span class="keyword">auto</span> at_c(<span class="keyword">const</span> packed_pixel<P, C, L>& p)</div>
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<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> -> <span class="keyword">typename</span> kth_element_const_reference_type<packed_pixel<P, C, L>, K>::type</div>
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<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span>{</div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> <span class="keywordflow">return</span> <span class="keyword">typename</span> kth_element_const_reference_type</div>
|
|
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> <</div>
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<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> packed_pixel<P, C, L>,</div>
|
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<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> K>::type{&p._bitfield};</div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span>}</div>
|
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<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> </div>
|
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span><span class="comment">// PixelConcept</span></div>
|
|
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> </div>
|
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span><span class="comment">// Metafunction predicate that flags packed_pixel as a model of PixelConcept.</span></div>
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|
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span><span class="comment">// Required by PixelConcept</span></div>
|
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span><span class="keyword">template</span> <<span class="keyword">typename</span> BitField, <span class="keyword">typename</span> ChannelRefs, <span class="keyword">typename</span> Layout></div>
|
|
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span><span class="keyword">struct </span>is_pixel<packed_pixel<BitField, ChannelRefs, Layout>> : std::true_type {};</div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> </div>
|
|
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span><span class="comment">// PixelBasedConcept</span></div>
|
|
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> </div>
|
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<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span><span class="keyword">template</span> <<span class="keyword">typename</span> P, <span class="keyword">typename</span> C, <span class="keyword">typename</span> Layout></div>
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<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span><span class="keyword">struct </span>color_space_type<packed_pixel<P, C, Layout>></div>
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<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span>{</div>
|
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<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> <span class="keyword">using </span>type = <span class="keyword">typename</span> Layout::color_space_t;</div>
|
|
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span>};</div>
|
|
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> </div>
|
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<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span><span class="keyword">template</span> <<span class="keyword">typename</span> P, <span class="keyword">typename</span> C, <span class="keyword">typename</span> Layout></div>
|
|
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span><span class="keyword">struct </span>channel_mapping_type<packed_pixel<P, C, Layout>></div>
|
|
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span>{</div>
|
|
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> <span class="keyword">using </span>type = <span class="keyword">typename</span> Layout::channel_mapping_t;</div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span>};</div>
|
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> </div>
|
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span><span class="keyword">template</span> <<span class="keyword">typename</span> P, <span class="keyword">typename</span> C, <span class="keyword">typename</span> Layout></div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span><span class="keyword">struct </span>is_planar<packed_pixel<P, C, Layout>> : std::false_type {};</div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> </div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> </div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> </div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span><span class="keyword">template</span> <<span class="keyword">typename</span> P, <span class="keyword">typename</span> C, <span class="keyword">typename</span> L></div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span><span class="keyword">struct </span>iterator_is_mutable<packed_pixel<P, C, L>*></div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> : std::integral_constant<bool, packed_pixel<P, C, L>::is_mutable></div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span>{};</div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> </div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span><span class="keyword">template</span> <<span class="keyword">typename</span> P, <span class="keyword">typename</span> C, <span class="keyword">typename</span> L></div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span><span class="keyword">struct </span>iterator_is_mutable<const packed_pixel<P, C, L>*> : std::false_type {};</div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> </div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span>}} <span class="comment">// namespace boost::gil</span></div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> </div>
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span><span class="preprocessor">#endif</span></div>
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<div class="ttc" id="anamespaceboost_html"><div class="ttname"><a href="namespaceboost.html">boost</a></div><div class="ttdoc">defined(BOOST_NO_CXX17_HDR_MEMORY_RESOURCE)</div><div class="ttdef"><b>Definition</b> algorithm.hpp:36</div></div>
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<div class="ttc" id="astructboost_1_1gil_1_1num__channels_html"><div class="ttname"><a href="structboost_1_1gil_1_1num__channels.html">boost::gil::num_channels</a></div><div class="ttdoc">Returns the number of channels of a pixel-based GIL construct.</div><div class="ttdef"><b>Definition</b> pixel.hpp:54</div></div>
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<div class="ttc" id="astructboost_1_1gil_1_1packed__pixel_html"><div class="ttname"><a href="structboost_1_1gil_1_1packed__pixel.html">boost::gil::packed_pixel</a></div><div class="ttdoc">Heterogeneous pixel value whose channel references can be constructed from the pixel bitfield and the...</div><div class="ttdef"><b>Definition</b> packed_pixel.hpp:50</div></div>
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