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<div class="title">channel.hpp</div> </div>
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<a href="channel_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
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<div class="line"><a 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 name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> </span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> Use, modification and distribution are subject to the Boost Software License,</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at</span></div>
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<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>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"></span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> See http://stlab.adobe.com/gil for most recent version including documentation.</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">*/</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">/*************************************************************************************************/</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#ifndef GIL_CHANNEL_HPP</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor"></span><span class="preprocessor">#define GIL_CHANNEL_HPP</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <limits></span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <cassert></span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <cstdint></span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <boost/config.hpp></span></div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <boost/integer/integer_mask.hpp></span></div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <boost/type_traits/remove_cv.hpp></span></div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include "<a class="code" href="gil__config_8hpp.html">gil_config.hpp</a>"</span></div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include "<a class="code" href="utilities_8hpp.html">utilities.hpp</a>"</span></div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil {</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keyword">namespace </span>detail {</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T, <span class="keywordtype">bool</span> is_<span class="keyword">class</span>> <span class="keyword">struct </span>channel_traits_impl;</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">// channel traits for custom class</span></div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T> </div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">struct </span>channel_traits_impl<T, true> {</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> T::value_type value_type;</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> T::reference reference;</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> T::pointer pointer;</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> T::const_reference const_reference;</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> T::const_pointer const_pointer;</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  BOOST_STATIC_CONSTANT(<span class="keywordtype">bool</span>, is_mutable=T::is_mutable);</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">static</span> value_type min_value() { <span class="keywordflow">return</span> T::min_value(); }</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">static</span> value_type max_value() { <span class="keywordflow">return</span> T::max_value(); }</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  };</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="comment">// channel traits implementation for built-in integral or floating point channel type</span></div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T> </div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keyword">struct </span>channel_traits_impl<T, false> {</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">typedef</span> T value_type;</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">typedef</span> T& reference;</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">typedef</span> T* pointer;</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">typedef</span> <span class="keyword">const</span> T& const_reference;</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">typedef</span> T <span class="keyword">const</span>* const_pointer;</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  BOOST_STATIC_CONSTANT(<span class="keywordtype">bool</span>, is_mutable=<span class="keyword">true</span>);</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keyword">static</span> value_type min_value() { <span class="keywordflow">return</span> (std::numeric_limits<T>::min)(); }</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keyword">static</span> value_type max_value() { <span class="keywordflow">return</span> (std::numeric_limits<T>::max)(); }</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  };</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="comment">// channel traits implementation for constant built-in scalar or floating point type</span></div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T> </div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keyword">struct </span>channel_traits_impl<const T, false> : <span class="keyword">public</span> channel_traits_impl<T, false> {</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keyword">typedef</span> <span class="keyword">const</span> T& reference;</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keyword">typedef</span> <span class="keyword">const</span> T* pointer;</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  BOOST_STATIC_CONSTANT(<span class="keywordtype">bool</span>, is_mutable=<span class="keyword">false</span>);</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  };</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> }</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00114"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1channel__traits.html"> 114</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1channel__traits.html">channel_traits</a> : <span class="keyword">public</span> detail::channel_traits_impl<T, is_class<T>::value> {};</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment">// Channel traits for C++ reference type - remove the reference</span></div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1channel__traits.html">channel_traits</a>< T&> : <span class="keyword">public</span> <a class="code" href="structboost_1_1gil_1_1channel__traits.html">channel_traits<T></a> {};</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="comment">// Channel traits for constant C++ reference type</span></div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T> <span class="keyword">struct </span>channel_traits<const T&> : <span class="keyword">public</span> channel_traits<T> {</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> channel_traits<T>::const_reference reference;</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> channel_traits<T>::const_pointer pointer;</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  BOOST_STATIC_CONSTANT(<span class="keywordtype">bool</span>, is_mutable=<span class="keyword">false</span>);</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> };</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="keyword">template</span> <<span class="keyword">typename</span> BaseChannelValue, <span class="comment">// base channel (models ChannelValueConcept)</span></div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keyword">typename</span> MinVal, <span class="keyword">typename</span> MaxVal> <span class="comment">// classes with a static apply() function returning the minimum/maximum channel values</span></div>
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<div class="line"><a name="l00156"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1scoped__channel__value.html"> 156</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">scoped_channel_value</a> {</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keyword">typedef</span> <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">scoped_channel_value</a> <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">value_type</a>;</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keyword">typedef</span> <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">value_type</a>& <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">reference</a>;</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keyword">typedef</span> <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">value_type</a>* <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">pointer</a>;</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keyword">typedef</span> <span class="keyword">const</span> <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">value_type</a>& <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">const_reference</a>;</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keyword">typedef</span> <span class="keyword">const</span> <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">value_type</a>* <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">const_pointer</a>;</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  BOOST_STATIC_CONSTANT(<span class="keywordtype">bool</span>, is_mutable=<a class="code" href="structboost_1_1gil_1_1channel__traits.html">channel_traits<BaseChannelValue>::is_mutable</a>);</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keyword">typedef</span> BaseChannelValue base_channel_t;</div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keyword">static</span> <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">value_type</a> min_value() { <span class="keywordflow">return</span> MinVal::apply(); }</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">static</span> <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">value_type</a> max_value() { <span class="keywordflow">return</span> MaxVal::apply(); }</div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">scoped_channel_value</a>() {}</div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">scoped_channel_value</a>(<span class="keyword">const</span> <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">scoped_channel_value</a>& c) : _value(c._value) {}</div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">scoped_channel_value</a>(BaseChannelValue val) : _value(val) {}</div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> </div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">scoped_channel_value</a>& operator++() { ++_value; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">scoped_channel_value</a>& operator--() { --_value; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div>
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">scoped_channel_value</a> operator++(<span class="keywordtype">int</span>) { <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">scoped_channel_value</a> tmp=*<span class="keyword">this</span>; this->operator++(); <span class="keywordflow">return</span> tmp; }</div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">scoped_channel_value</a> operator--(<span class="keywordtype">int</span>) { <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">scoped_channel_value</a> tmp=*<span class="keyword">this</span>; this->operator--(); <span class="keywordflow">return</span> tmp; }</div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Scalar2> <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">scoped_channel_value</a>& operator+=(Scalar2 v) { _value+=v; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Scalar2> <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">scoped_channel_value</a>& operator-=(Scalar2 v) { _value-=v; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Scalar2> <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">scoped_channel_value</a>& operator*=(Scalar2 v) { _value*=v; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Scalar2> <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">scoped_channel_value</a>& operator/=(Scalar2 v) { _value/=v; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> </div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <a class="code" href="structboost_1_1gil_1_1scoped__channel__value.html">scoped_channel_value</a>& operator=(BaseChannelValue v) { _value=v; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keyword">operator</span> BaseChannelValue()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _value; }</div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  BaseChannelValue _value;</div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> };</div>
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div>
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="keyword">struct </span>float_point_zero</div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> {</div>
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keyword">static</span> constexpr T apply() { <span class="keywordflow">return</span> 0.0f; }</div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> };</div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div>
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="keyword">struct </span>float_point_one</div>
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> {</div>
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keyword">static</span> constexpr T apply() { <span class="keywordflow">return</span> 1.0f; }</div>
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<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> };</div>
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> </div>
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<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="comment">// It is necessary for packed channels to have their own value type. They cannot simply use an integral large enough to store the data. Here is why:</span></div>
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<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="comment">// - Any operation that requires returning the result by value will otherwise return the built-in integral type, which will have incorrect range</span></div>
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment">// That means that after getting the value of the channel we cannot properly do channel_convert, channel_invert, etc.</span></div>
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<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="comment">// - Two channels are declared compatible if they have the same value type. That means that a packed channel is incorrectly declared compatible with an integral type</span></div>
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<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="keyword">namespace </span>detail {</div>
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="comment">// returns the smallest fast unsigned integral type that has at least NumBits bits</span></div>
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<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keyword">template</span> <<span class="keywordtype">int</span> NumBits></div>
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keyword">struct </span>min_fast_uint : <span class="keyword">public</span> mpl::if_c< (NumBits<=8), </div>
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  uint_least8_t, </div>
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<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  typename mpl::if_c< (NumBits<=16), </div>
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<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  uint_least16_t, </div>
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  typename mpl::if_c< (NumBits<=32), </div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  uint_least32_t, </div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  uintmax_t</div>
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<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  >::type</div>
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<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  >::type</div>
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<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  > {};</div>
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<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> </div>
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<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  template <int NumBits></div>
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<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  struct num_value_fn : public mpl::if_c< ( NumBits < 32 )</div>
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<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  , uint32_t</div>
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<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  , uint64_t</div>
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<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  > {};</div>
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<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> </div>
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<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  template <int NumBits></div>
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<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  struct max_value_fn : public mpl::if_c< ( NumBits <= 32 )</div>
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<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  , uint32_t</div>
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<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  , uint64_t</div>
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<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  > {};</div>
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<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> }</div>
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<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div>
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<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> template <int NumBits></div>
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<div class="line"><a name="l00258"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1packed__channel__value.html"> 258</a></span> class packed_channel_value {</div>
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<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> </div>
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<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> public:</div>
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<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  typedef typename detail::min_fast_uint<NumBits>::type integer_t;</div>
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<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> </div>
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<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> </div>
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<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  typedef packed_channel_value value_type;</div>
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<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  typedef value_type& reference;</div>
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<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  typedef const value_type& const_reference;</div>
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<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  typedef value_type* pointer;</div>
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<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  typedef const value_type* const_pointer;</div>
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<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div>
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<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  static value_type min_value() { return 0; }</div>
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<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  static value_type max_value() { return low_bits_mask_t< NumBits >::sig_bits; }</div>
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<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> </div>
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<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  BOOST_STATIC_CONSTANT(bool, is_mutable=true);</div>
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<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> </div>
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<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  packed_channel_value() {}</div>
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<div class="line"><a name="l00276"></a><span class="lineno"> 276</span> </div>
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<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  packed_channel_value(integer_t v) { _value = static_cast< integer_t >( v & low_bits_mask_t<NumBits>::sig_bits_fast ); }</div>
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<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  template <typename Scalar> packed_channel_value(Scalar v) { _value = packed_channel_value( static_cast< integer_t >( v ) ); }</div>
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<div class="line"><a name="l00279"></a><span class="lineno"> 279</span> </div>
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<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  static unsigned int num_bits() { return NumBits; }</div>
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<div class="line"><a name="l00281"></a><span class="lineno"> 281</span> </div>
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<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  operator integer_t() const { return _value; }</div>
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<div class="line"><a name="l00283"></a><span class="lineno"> 283</span> private:</div>
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<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  integer_t _value;</div>
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<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> };</div>
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<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> </div>
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<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> namespace detail {</div>
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<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> </div>
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<div class="line"><a name="l00289"></a><span class="lineno"> 289</span> template <std::size_t K></div>
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<div class="line"><a name="l00290"></a><span class="lineno"> 290</span> struct static_copy_bytes {</div>
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<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  void operator()(const unsigned char* from, unsigned char* to) const {</div>
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<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  *to = *from;</div>
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<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  static_copy_bytes<K-1>()(++from,++to);</div>
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<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  }</div>
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<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> };</div>
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<div class="line"><a name="l00296"></a><span class="lineno"> 296</span> </div>
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<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> template <></div>
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<div class="line"><a name="l00298"></a><span class="lineno"> 298</span> struct static_copy_bytes<0> {</div>
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<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  void operator()(const unsigned char* , unsigned char*) const {}</div>
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<div class="line"><a name="l00300"></a><span class="lineno"> 300</span> };</div>
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<div class="line"><a name="l00301"></a><span class="lineno"> 301</span> </div>
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<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> template <typename Derived, typename BitField, int NumBits, bool Mutable></div>
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<div class="line"><a name="l00303"></a><span class="lineno"> 303</span> class packed_channel_reference_base {</div>
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<div class="line"><a name="l00304"></a><span class="lineno"> 304</span> protected:</div>
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<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  typedef typename mpl::if_c<Mutable,void*,const void*>::type data_ptr_t;</div>
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<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> public:</div>
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<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  data_ptr_t _data_ptr; <span class="comment">// void* pointer to the first byte of the bit range</span></div>
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<div class="line"><a name="l00308"></a><span class="lineno"> 308</span> </div>
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<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  typedef packed_channel_value<NumBits> value_type;</div>
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<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  typedef const Derived reference;</div>
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<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  typedef value_type* pointer;</div>
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<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  typedef const value_type* const_pointer;</div>
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<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  BOOST_STATIC_CONSTANT(int, num_bits=NumBits);</div>
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<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  BOOST_STATIC_CONSTANT(bool, is_mutable=Mutable);</div>
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<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> </div>
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<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  static value_type min_value() { return channel_traits<value_type>::min_value(); }</div>
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<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  static value_type max_value() { return channel_traits<value_type>::max_value(); }</div>
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<div class="line"><a name="l00318"></a><span class="lineno"> 318</span> </div>
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<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  typedef BitField bitfield_t;</div>
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<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  typedef typename value_type::integer_t integer_t;</div>
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<div class="line"><a name="l00321"></a><span class="lineno"> 321</span> </div>
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<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  packed_channel_reference_base(data_ptr_t data_ptr) : _data_ptr(data_ptr) {}</div>
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<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  packed_channel_reference_base(const packed_channel_reference_base& ref) : _data_ptr(ref._data_ptr) {}</div>
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<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  const Derived& operator=(integer_t v) const { set(v); return derived(); }</div>
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<div class="line"><a name="l00325"></a><span class="lineno"> 325</span> </div>
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<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  const Derived& operator++() const { set(get()+1); return derived(); }</div>
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<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  const Derived& operator--() const { set(get()-1); return derived(); }</div>
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<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> </div>
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<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  Derived operator++(int) const { Derived tmp=derived(); this->operator++(); return tmp; }</div>
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<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  Derived operator--(int) const { Derived tmp=derived(); this->operator--(); return tmp; }</div>
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<div class="line"><a name="l00331"></a><span class="lineno"> 331</span> </div>
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<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  template <typename Scalar2> const Derived& operator+=(Scalar2 v) const { set( static_cast<integer_t>( get() + v )); return derived(); }</div>
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<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  template <typename Scalar2> const Derived& operator-=(Scalar2 v) const { set( static_cast<integer_t>( get() - v )); return derived(); }</div>
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<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  template <typename Scalar2> const Derived& operator*=(Scalar2 v) const { set( static_cast<integer_t>( get() * v )); return derived(); }</div>
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<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  template <typename Scalar2> const Derived& operator/=(Scalar2 v) const { set( static_cast<integer_t>( get() / v )); return derived(); }</div>
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<div class="line"><a name="l00336"></a><span class="lineno"> 336</span> </div>
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<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  operator integer_t() const { return get(); }</div>
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<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  data_ptr_t operator &() const {return _data_ptr;}</div>
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<div class="line"><a name="l00339"></a><span class="lineno"> 339</span> protected:</div>
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<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> </div>
|
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<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  typedef typename detail::num_value_fn< NumBits >::type num_value_t;</div>
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<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  typedef typename detail::max_value_fn< NumBits >::type max_value_t;</div>
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<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  </div>
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<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  static const num_value_t num_values = static_cast< num_value_t >( 1 ) << NumBits ;</div>
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<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  static const max_value_t max_val = static_cast< max_value_t >( num_values - 1 );</div>
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<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  </div>
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<div class="line"><a name="l00347"></a><span class="lineno"> 347</span> #ifdef GIL_NONWORD_POINTER_ALIGNMENT_SUPPORTED</div>
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<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  const bitfield_t& get_data() const { return *static_cast<const bitfield_t*>(_data_ptr); }</div>
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<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  void set_data(const bitfield_t& val) const { *static_cast< bitfield_t*>(_data_ptr) = val; }</div>
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<div class="line"><a name="l00350"></a><span class="lineno"> 350</span> #else</div>
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<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  bitfield_t get_data() const {</div>
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<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  bitfield_t ret;</div>
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<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  static_copy_bytes<sizeof(bitfield_t) >()(gil_reinterpret_cast_c<const unsigned char*>(_data_ptr),gil_reinterpret_cast<unsigned char*>(&ret));</div>
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<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  return ret;</div>
|
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<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  }</div>
|
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<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  void set_data(const bitfield_t& val) const {</div>
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<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  static_copy_bytes<sizeof(bitfield_t) >()(gil_reinterpret_cast_c<const unsigned char*>(&val),gil_reinterpret_cast<unsigned char*>(_data_ptr));</div>
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<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  }</div>
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<div class="line"><a name="l00359"></a><span class="lineno"> 359</span> #endif</div>
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<div class="line"><a name="l00360"></a><span class="lineno"> 360</span> </div>
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<div class="line"><a name="l00361"></a><span class="lineno"> 361</span> private:</div>
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<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  void set(integer_t value) const { <span class="comment">// can this be done faster??</span></div>
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<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  this->derived().set_unsafe(((value % num_values) + num_values) % num_values); </div>
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<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  }</div>
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<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  integer_t get() const { return derived().get(); }</div>
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<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  const Derived& derived() const { return static_cast<const Derived&>(*this); }</div>
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<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> };</div>
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<div class="line"><a name="l00368"></a><span class="lineno"> 368</span> } <span class="comment">// namespace detail</span></div>
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<div class="line"><a name="l00369"></a><span class="lineno"> 369</span> </div>
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<div class="line"><a name="l00386"></a><span class="lineno"> 386</span> template <typename BitField, <span class="comment">// A type that holds the bits of the pixel from which the channel is referenced. Typically an integral type, like std::uint16_t</span></div>
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<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  int FirstBit, int NumBits,<span class="comment">// Defines the sequence of bits in the data value that contain the channel </span></div>
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|
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  bool Mutable> <span class="comment">// true if the reference is mutable </span></div>
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<div class="line"><a name="l00389"></a><span class="lineno"> 389</span> class packed_channel_reference;</div>
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<div class="line"><a name="l00390"></a><span class="lineno"> 390</span> </div>
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<div class="line"><a name="l00391"></a><span class="lineno"> 391</span> template <typename BitField, <span class="comment">// A type that holds the bits of the pixel from which the channel is referenced. Typically an integral type, like std::uint16_t</span></div>
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<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  int NumBits, <span class="comment">// Defines the sequence of bits in the data value that contain the channel </span></div>
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<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  bool Mutable> <span class="comment">// true if the reference is mutable </span></div>
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<div class="line"><a name="l00394"></a><span class="lineno"> 394</span> class packed_dynamic_channel_reference;</div>
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<div class="line"><a name="l00395"></a><span class="lineno"> 395</span> </div>
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<div class="line"><a name="l00398"></a><span class="lineno"> 398</span> template <typename BitField, int FirstBit, int NumBits></div>
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<div class="line"><a name="l00399"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1packed__channel__reference_3_01_bit_field_00_01_first_bit_00_01_num_bits_00_01false_01_4.html"> 399</a></span> class packed_channel_reference<BitField,FirstBit,NumBits,false> </div>
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<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  : public detail::packed_channel_reference_base<packed_channel_reference<BitField,FirstBit,NumBits,false>,BitField,NumBits,false> {</div>
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<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  typedef detail::packed_channel_reference_base<packed_channel_reference<BitField,FirstBit,NumBits,false>,BitField,NumBits,false> parent_t;</div>
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<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  friend class packed_channel_reference<BitField,FirstBit,NumBits,true>;</div>
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<div class="line"><a name="l00403"></a><span class="lineno"> 403</span> </div>
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<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  static const BitField channel_mask = static_cast< BitField >( parent_t::max_val ) << FirstBit;</div>
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<div class="line"><a name="l00405"></a><span class="lineno"> 405</span> </div>
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<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  void operator=(const packed_channel_reference&);</div>
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<div class="line"><a name="l00407"></a><span class="lineno"> 407</span> public:</div>
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<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  typedef const packed_channel_reference<BitField,FirstBit,NumBits,false> const_reference;</div>
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<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  typedef const packed_channel_reference<BitField,FirstBit,NumBits,true> mutable_reference;</div>
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<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  typedef typename parent_t::integer_t integer_t;</div>
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<div class="line"><a name="l00411"></a><span class="lineno"> 411</span> </div>
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<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  explicit packed_channel_reference(const void* data_ptr) : parent_t(data_ptr) {}</div>
|
|
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  packed_channel_reference(const packed_channel_reference& ref) : parent_t(ref._data_ptr) {}</div>
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<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  packed_channel_reference(const mutable_reference& ref) : parent_t(ref._data_ptr) {}</div>
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<div class="line"><a name="l00415"></a><span class="lineno"> 415</span> </div>
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<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  unsigned first_bit() const { return FirstBit; }</div>
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<div class="line"><a name="l00417"></a><span class="lineno"> 417</span> </div>
|
|
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  integer_t get() const { return integer_t((this->get_data()&channel_mask) >> FirstBit); }</div>
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<div class="line"><a name="l00419"></a><span class="lineno"> 419</span> };</div>
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<div class="line"><a name="l00420"></a><span class="lineno"> 420</span> </div>
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<div class="line"><a name="l00423"></a><span class="lineno"> 423</span> template <typename BitField, int FirstBit, int NumBits></div>
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<div class="line"><a name="l00424"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1packed__channel__reference_3_01_bit_field_00_01_first_bit_00_01_num_bits_00_01true_01_4.html"> 424</a></span> class packed_channel_reference<BitField,FirstBit,NumBits,true> </div>
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<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  : public detail::packed_channel_reference_base<packed_channel_reference<BitField,FirstBit,NumBits,true>,BitField,NumBits,true> {</div>
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|
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  typedef detail::packed_channel_reference_base<packed_channel_reference<BitField,FirstBit,NumBits,true>,BitField,NumBits,true> parent_t;</div>
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<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  friend class packed_channel_reference<BitField,FirstBit,NumBits,false>;</div>
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|
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span> </div>
|
|
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  static const BitField channel_mask = static_cast< BitField >( parent_t::max_val ) << FirstBit;</div>
|
|
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span> </div>
|
|
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span> public:</div>
|
|
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  typedef const packed_channel_reference<BitField,FirstBit,NumBits,false> const_reference;</div>
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|
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  typedef const packed_channel_reference<BitField,FirstBit,NumBits,true> mutable_reference;</div>
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|
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  typedef typename parent_t::integer_t integer_t;</div>
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<div class="line"><a name="l00435"></a><span class="lineno"> 435</span> </div>
|
|
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  explicit packed_channel_reference(void* data_ptr) : parent_t(data_ptr) {}</div>
|
|
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  packed_channel_reference(const packed_channel_reference& ref) : parent_t(ref._data_ptr) {}</div>
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|
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span> </div>
|
|
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  const packed_channel_reference& operator=(integer_t value) const { assert(value<=parent_t::max_val); set_unsafe(value); return *this; }</div>
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|
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  const packed_channel_reference& operator=(const mutable_reference& ref) const { set_from_reference(ref.get_data()); return *this; }</div>
|
|
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  const packed_channel_reference& operator=(const const_reference& ref) const { set_from_reference(ref.get_data()); return *this; }</div>
|
|
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span> </div>
|
|
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  template <bool Mutable1></div>
|
|
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  const packed_channel_reference& operator=(const packed_dynamic_channel_reference<BitField,NumBits,Mutable1>& ref) const { set_unsafe(ref.get()); return *this; }</div>
|
|
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span> </div>
|
|
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  unsigned first_bit() const { return FirstBit; }</div>
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|
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span> </div>
|
|
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  integer_t get() const { return integer_t((this->get_data()&channel_mask) >> FirstBit); }</div>
|
|
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  void set_unsafe(integer_t value) const { this->set_data((this->get_data() & ~channel_mask) | (( static_cast< BitField >( value )<<FirstBit))); }</div>
|
|
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span> private:</div>
|
|
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  void set_from_reference(const BitField& other_bits) const { this->set_data((this->get_data() & ~channel_mask) | (other_bits & channel_mask)); }</div>
|
|
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span> };</div>
|
|
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span> </div>
|
|
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span> } } <span class="comment">// namespace boost::gil</span></div>
|
|
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span> </div>
|
|
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span> namespace std {</div>
|
|
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span> <span class="comment">// We are forced to define swap inside std namespace because on some platforms (Visual Studio 8) STL calls swap qualified.</span></div>
|
|
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span> <span class="comment">// swap with 'left bias': </span></div>
|
|
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span> <span class="comment">// - swap between proxy and anything</span></div>
|
|
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span> <span class="comment">// - swap between value type and proxy</span></div>
|
|
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span> <span class="comment">// - swap between proxy and proxy</span></div>
|
|
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span> </div>
|
|
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span> template <typename BF, int FB, int NB, bool M, typename R> inline</div>
|
|
<div class="line"><a name="l00466"></a><span class="lineno"><a class="line" href="group___packed_channel_reference_model.html#gaa0bd7927a859ab0e44df1df898b68e7c"> 466</a></span> void swap(const boost::gil::packed_channel_reference<BF,FB,NB,M> x, R& y) { </div>
|
|
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  boost::gil::swap_proxy<typename boost::gil::packed_channel_reference<BF,FB,NB,M>::value_type>(x,y); </div>
|
|
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span> }</div>
|
|
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span> </div>
|
|
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span> </div>
|
|
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span> template <typename BF, int FB, int NB, bool M> inline</div>
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|
<div class="line"><a name="l00474"></a><span class="lineno"><a class="line" href="group___packed_channel_reference_model.html#gaad704056496a9a216609ebde22497e5f"> 474</a></span> void swap(typename boost::gil::packed_channel_reference<BF,FB,NB,M>::value_type& x, const boost::gil::packed_channel_reference<BF,FB,NB,M> y) { </div>
|
|
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  boost::gil::swap_proxy<typename boost::gil::packed_channel_reference<BF,FB,NB,M>::value_type>(x,y); </div>
|
|
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span> }</div>
|
|
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span> </div>
|
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<div class="line"><a name="l00478"></a><span class="lineno"> 478</span> </div>
|
|
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span> template <typename BF, int FB, int NB, bool M> inline</div>
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|
<div class="line"><a name="l00482"></a><span class="lineno"><a class="line" href="group___packed_channel_reference_model.html#ga8dd3a59fa9f04ce822b13f268f8a1ed4"> 482</a></span> void swap(const boost::gil::packed_channel_reference<BF,FB,NB,M> x, const boost::gil::packed_channel_reference<BF,FB,NB,M> y) { </div>
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|
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  boost::gil::swap_proxy<typename boost::gil::packed_channel_reference<BF,FB,NB,M>::value_type>(x,y); </div>
|
|
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span> }</div>
|
|
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span> } <span class="comment">// namespace std</span></div>
|
|
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span> </div>
|
|
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span> namespace boost { namespace gil {</div>
|
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<div class="line"><a name="l00488"></a><span class="lineno"> 488</span> </div>
|
|
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span> template <typename BitField, int NumBits> </div>
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<div class="line"><a name="l00510"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1packed__dynamic__channel__reference_3_01_bit_field_00_01_num_bits_00_01false_01_4.html"> 510</a></span> class packed_dynamic_channel_reference<BitField,NumBits,false></div>
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|
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  : public detail::packed_channel_reference_base<packed_dynamic_channel_reference<BitField,NumBits,false>,BitField,NumBits,false> {</div>
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|
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  typedef detail::packed_channel_reference_base<packed_dynamic_channel_reference<BitField,NumBits,false>,BitField,NumBits,false> parent_t;</div>
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|
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  friend class packed_dynamic_channel_reference<BitField,NumBits,true>;</div>
|
|
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span> </div>
|
|
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  unsigned _first_bit; <span class="comment">// 0..7</span></div>
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<div class="line"><a name="l00516"></a><span class="lineno"> 516</span> </div>
|
|
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  void operator=(const packed_dynamic_channel_reference&);</div>
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<div class="line"><a name="l00518"></a><span class="lineno"> 518</span> public:</div>
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|
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  typedef const packed_dynamic_channel_reference<BitField,NumBits,false> const_reference;</div>
|
|
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  typedef const packed_dynamic_channel_reference<BitField,NumBits,true> mutable_reference;</div>
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<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  typedef typename parent_t::integer_t integer_t;</div>
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<div class="line"><a name="l00522"></a><span class="lineno"> 522</span> </div>
|
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<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  packed_dynamic_channel_reference(const void* data_ptr, unsigned first_bit) : parent_t(data_ptr), _first_bit(first_bit) {}</div>
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|
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  packed_dynamic_channel_reference(const const_reference& ref) : parent_t(ref._data_ptr), _first_bit(ref._first_bit) {}</div>
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|
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  packed_dynamic_channel_reference(const mutable_reference& ref) : parent_t(ref._data_ptr), _first_bit(ref._first_bit) {}</div>
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<div class="line"><a name="l00526"></a><span class="lineno"> 526</span> </div>
|
|
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  unsigned first_bit() const { return _first_bit; }</div>
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|
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span> </div>
|
|
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  integer_t get() const { </div>
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<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  const BitField channel_mask = static_cast< integer_t >( parent_t::max_val ) <<_first_bit;</div>
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|
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  return static_cast< integer_t >(( this->get_data()&channel_mask ) >> _first_bit );</div>
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<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  }</div>
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<div class="line"><a name="l00533"></a><span class="lineno"> 533</span> };</div>
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<div class="line"><a name="l00534"></a><span class="lineno"> 534</span> </div>
|
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<div class="line"><a name="l00538"></a><span class="lineno"> 538</span> template <typename BitField, int NumBits> </div>
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<div class="line"><a name="l00539"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1packed__dynamic__channel__reference_3_01_bit_field_00_01_num_bits_00_01true_01_4.html"> 539</a></span> class packed_dynamic_channel_reference<BitField,NumBits,true></div>
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<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  : <span class="keyword">public</span> detail::packed_channel_reference_base<packed_dynamic_channel_reference<BitField,NumBits,true>,BitField,NumBits,true> {</div>
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<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  <span class="keyword">typedef</span> detail::packed_channel_reference_base<packed_dynamic_channel_reference<BitField,NumBits,true>,BitField,NumBits,<span class="keyword">true</span>> parent_t;</div>
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<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  <span class="keyword">friend</span> <span class="keyword">class </span>packed_dynamic_channel_reference<BitField,NumBits,false>;</div>
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<div class="line"><a name="l00543"></a><span class="lineno"> 543</span> </div>
|
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<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  <span class="keywordtype">unsigned</span> _first_bit;</div>
|
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<div class="line"><a name="l00545"></a><span class="lineno"> 545</span> </div>
|
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<div class="line"><a name="l00546"></a><span class="lineno"> 546</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <span class="keyword">typedef</span> <span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1packed__dynamic__channel__reference_3_01_bit_field_00_01_num_bits_00_01false_01_4.html">packed_dynamic_channel_reference<BitField,NumBits,false></a> <a class="code" href="classboost_1_1gil_1_1packed__dynamic__channel__reference_3_01_bit_field_00_01_num_bits_00_01false_01_4.html">const_reference</a>;</div>
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<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  <span class="keyword">typedef</span> <span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1packed__dynamic__channel__reference_3_01_bit_field_00_01_num_bits_00_01true_01_4.html">packed_dynamic_channel_reference<BitField,NumBits,true></a> <a class="code" href="classboost_1_1gil_1_1packed__dynamic__channel__reference_3_01_bit_field_00_01_num_bits_00_01true_01_4.html">mutable_reference</a>;</div>
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<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> parent_t::integer_t integer_t;</div>
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<div class="line"><a name="l00550"></a><span class="lineno"> 550</span> </div>
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<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  packed_dynamic_channel_reference(<span class="keywordtype">void</span>* data_ptr, <span class="keywordtype">unsigned</span> first_bit) : parent_t(data_ptr), _first_bit(first_bit) {}</div>
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<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  packed_dynamic_channel_reference(<span class="keyword">const</span> packed_dynamic_channel_reference& ref) : parent_t(ref._data_ptr), _first_bit(ref._first_bit) {}</div>
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<div class="line"><a name="l00553"></a><span class="lineno"> 553</span> </div>
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<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  <span class="keyword">const</span> packed_dynamic_channel_reference& operator=(integer_t value)<span class="keyword"> const </span>{ assert(value<=parent_t::max_val); set_unsafe(value); <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
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<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  <span class="keyword">const</span> packed_dynamic_channel_reference& operator=(<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1packed__dynamic__channel__reference_3_01_bit_field_00_01_num_bits_00_01true_01_4.html">mutable_reference</a>& ref)<span class="keyword"> const </span>{ set_unsafe(ref.get()); <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
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<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <span class="keyword">const</span> packed_dynamic_channel_reference& operator=(<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1packed__dynamic__channel__reference_3_01_bit_field_00_01_num_bits_00_01false_01_4.html">const_reference</a>& ref)<span class="keyword"> const </span>{ set_unsafe(ref.get()); <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
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<div class="line"><a name="l00557"></a><span class="lineno"> 557</span> </div>
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<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> BitField1, <span class="keywordtype">int</span> FirstBit1, <span class="keywordtype">bool</span> Mutable1></div>
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<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  <span class="keyword">const</span> packed_dynamic_channel_reference& operator=(<span class="keyword">const</span> packed_channel_reference<BitField1, FirstBit1, NumBits, Mutable1>& ref)<span class="keyword"> const </span></div>
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<div class="line"><a name="l00560"></a><span class="lineno"> 560</span> <span class="keyword"> </span>{ set_unsafe(ref.get()); <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
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<div class="line"><a name="l00561"></a><span class="lineno"> 561</span> </div>
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<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  <span class="keywordtype">unsigned</span> first_bit()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _first_bit; }</div>
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<div class="line"><a name="l00563"></a><span class="lineno"> 563</span> </div>
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<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  integer_t <span class="keyword">get</span>() <span class="keyword">const</span> { </div>
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<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  <span class="keyword">const</span> BitField channel_mask = <span class="keyword">static_cast<</span> integer_t <span class="keyword">></span>( parent_t::max_val ) << _first_bit;</div>
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<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast<</span> integer_t <span class="keyword">></span>(( this->get_data()&channel_mask ) >> _first_bit );</div>
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<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  }</div>
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<div class="line"><a name="l00568"></a><span class="lineno"> 568</span> </div>
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<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  <span class="keywordtype">void</span> set_unsafe(integer_t value)<span class="keyword"> const </span>{ </div>
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<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  <span class="keyword">const</span> BitField channel_mask = <span class="keyword">static_cast<</span> integer_t <span class="keyword">></span>( parent_t::max_val ) << _first_bit;</div>
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<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  this->set_data((this->get_data() & ~channel_mask) | value<<_first_bit); </div>
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<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  }</div>
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<div class="line"><a name="l00573"></a><span class="lineno"> 573</span> };</div>
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<div class="line"><a name="l00574"></a><span class="lineno"> 574</span> } } <span class="comment">// namespace boost::gil</span></div>
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<div class="line"><a name="l00575"></a><span class="lineno"> 575</span> </div>
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<div class="line"><a name="l00576"></a><span class="lineno"> 576</span> <span class="keyword">namespace </span>std {</div>
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<div class="line"><a name="l00577"></a><span class="lineno"> 577</span> <span class="comment">// We are forced to define swap inside std namespace because on some platforms (Visual Studio 8) STL calls swap qualified.</span></div>
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<div class="line"><a name="l00578"></a><span class="lineno"> 578</span> <span class="comment">// swap with 'left bias': </span></div>
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<div class="line"><a name="l00579"></a><span class="lineno"> 579</span> <span class="comment">// - swap between proxy and anything</span></div>
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<div class="line"><a name="l00580"></a><span class="lineno"> 580</span> <span class="comment">// - swap between value type and proxy</span></div>
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<div class="line"><a name="l00581"></a><span class="lineno"> 581</span> <span class="comment">// - swap between proxy and proxy</span></div>
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<div class="line"><a name="l00582"></a><span class="lineno"> 582</span> </div>
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<div class="line"><a name="l00583"></a><span class="lineno"> 583</span> </div>
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<div class="line"><a name="l00586"></a><span class="lineno"> 586</span> <span class="keyword">template</span> <<span class="keyword">typename</span> BF, <span class="keywordtype">int</span> NB, <span class="keywordtype">bool</span> M, <span class="keyword">typename</span> R> <span class="keyword">inline</span></div>
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<div class="line"><a name="l00587"></a><span class="lineno"><a class="line" href="group___packed_channel_dynamic_reference_model.html#ga787db0870b8b34244289b895ed8345e2"> 587</a></span> <span class="keywordtype">void</span> <a class="code" href="group___packed_channel_dynamic_reference_model.html#gac4c1b188cdeb2280d9c803726e4d2cdc">swap</a>(<span class="keyword">const</span> boost::gil::packed_dynamic_channel_reference<BF,NB,M> x, R& y) { </div>
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<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  boost::gil::swap_proxy<typename boost::gil::packed_dynamic_channel_reference<BF,NB,M>::value_type>(x,y); </div>
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<div class="line"><a name="l00589"></a><span class="lineno"> 589</span> }</div>
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<div class="line"><a name="l00590"></a><span class="lineno"> 590</span> </div>
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<div class="line"><a name="l00591"></a><span class="lineno"> 591</span> </div>
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<div class="line"><a name="l00594"></a><span class="lineno"> 594</span> <span class="keyword">template</span> <<span class="keyword">typename</span> BF, <span class="keywordtype">int</span> NB, <span class="keywordtype">bool</span> M> <span class="keyword">inline</span></div>
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<div class="line"><a name="l00595"></a><span class="lineno"><a class="line" href="group___packed_channel_dynamic_reference_model.html#gab7ea281b0cce57c44a9046f732e4112b"> 595</a></span> <span class="keywordtype">void</span> <a class="code" href="group___packed_channel_dynamic_reference_model.html#gac4c1b188cdeb2280d9c803726e4d2cdc">swap</a>(<span class="keyword">typename</span> boost::gil::packed_dynamic_channel_reference<BF,NB,M>::value_type& x, <span class="keyword">const</span> boost::gil::packed_dynamic_channel_reference<BF,NB,M> y) { </div>
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<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  boost::gil::swap_proxy<typename boost::gil::packed_dynamic_channel_reference<BF,NB,M>::value_type>(x,y); </div>
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<div class="line"><a name="l00597"></a><span class="lineno"> 597</span> }</div>
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<div class="line"><a name="l00598"></a><span class="lineno"> 598</span> </div>
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<div class="line"><a name="l00599"></a><span class="lineno"> 599</span> </div>
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<div class="line"><a name="l00602"></a><span class="lineno"> 602</span> <span class="keyword">template</span> <<span class="keyword">typename</span> BF, <span class="keywordtype">int</span> NB, <span class="keywordtype">bool</span> M> <span class="keyword">inline</span></div>
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<div class="line"><a name="l00603"></a><span class="lineno"><a class="line" href="group___packed_channel_dynamic_reference_model.html#gac4c1b188cdeb2280d9c803726e4d2cdc"> 603</a></span> <span class="keywordtype">void</span> <a class="code" href="group___packed_channel_dynamic_reference_model.html#gac4c1b188cdeb2280d9c803726e4d2cdc">swap</a>(<span class="keyword">const</span> boost::gil::packed_dynamic_channel_reference<BF,NB,M> x, <span class="keyword">const</span> boost::gil::packed_dynamic_channel_reference<BF,NB,M> y) { </div>
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<div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  boost::gil::swap_proxy<typename boost::gil::packed_dynamic_channel_reference<BF,NB,M>::value_type>(x,y); </div>
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<div class="line"><a name="l00605"></a><span class="lineno"> 605</span> }</div>
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<div class="line"><a name="l00606"></a><span class="lineno"> 606</span> } <span class="comment">// namespace std</span></div>
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<div class="line"><a name="l00607"></a><span class="lineno"> 607</span> </div>
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<div class="line"><a name="l00608"></a><span class="lineno"> 608</span> <span class="keyword">namespace </span>boost {</div>
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<div class="line"><a name="l00609"></a><span class="lineno"> 609</span> </div>
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<div class="line"><a name="l00610"></a><span class="lineno"> 610</span> <span class="keyword">template</span> <<span class="keywordtype">int</span> NumBits></div>
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<div class="line"><a name="l00611"></a><span class="lineno"> 611</span> <span class="keyword">struct </span>is_integral<gil::packed_channel_value<NumBits> > : <span class="keyword">public</span> mpl::true_ {};</div>
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<div class="line"><a name="l00612"></a><span class="lineno"> 612</span> </div>
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<div class="line"><a name="l00613"></a><span class="lineno"> 613</span> <span class="keyword">template</span> <<span class="keyword">typename</span> BitField, <span class="keywordtype">int</span> FirstBit, <span class="keywordtype">int</span> NumBits, <span class="keywordtype">bool</span> IsMutable></div>
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<div class="line"><a name="l00614"></a><span class="lineno"> 614</span> <span class="keyword">struct </span>is_integral<gil::packed_channel_reference<BitField,FirstBit,NumBits,IsMutable> > : <span class="keyword">public</span> mpl::true_ {};</div>
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<div class="line"><a name="l00615"></a><span class="lineno"> 615</span> </div>
|
|
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span> <span class="keyword">template</span> <<span class="keyword">typename</span> BitField, <span class="keywordtype">int</span> NumBits, <span class="keywordtype">bool</span> IsMutable></div>
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<div class="line"><a name="l00617"></a><span class="lineno"> 617</span> <span class="keyword">struct </span>is_integral<gil::packed_dynamic_channel_reference<BitField,NumBits,IsMutable> > : <span class="keyword">public</span> mpl::true_ {};</div>
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<div class="line"><a name="l00618"></a><span class="lineno"> 618</span> </div>
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<div class="line"><a name="l00619"></a><span class="lineno"> 619</span> <span class="keyword">template</span> <<span class="keyword">typename</span> BaseChannelValue, <span class="keyword">typename</span> MinVal, <span class="keyword">typename</span> MaxVal> </div>
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<div class="line"><a name="l00620"></a><span class="lineno"> 620</span> <span class="keyword">struct </span>is_integral<gil::scoped_channel_value<BaseChannelValue,MinVal,MaxVal> > : <span class="keyword">public</span> is_integral<BaseChannelValue> {};</div>
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<div class="line"><a name="l00621"></a><span class="lineno"> 621</span> </div>
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<div class="line"><a name="l00622"></a><span class="lineno"> 622</span> } <span class="comment">// namespace boost</span></div>
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<div class="line"><a name="l00623"></a><span class="lineno"> 623</span> </div>
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<div class="line"><a name="l00624"></a><span class="lineno"> 624</span> <span class="comment">// \brief Determines the fundamental type which may be used, e.g., to cast from larger to smaller channel types.</span></div>
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<div class="line"><a name="l00625"></a><span class="lineno"> 625</span> <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil {</div>
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<div class="line"><a name="l00626"></a><span class="lineno"> 626</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00627"></a><span class="lineno"> 627</span> <span class="keyword">struct </span>base_channel_type_impl { <span class="keyword">typedef</span> T type; };</div>
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<div class="line"><a name="l00628"></a><span class="lineno"> 628</span> </div>
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<div class="line"><a name="l00629"></a><span class="lineno"> 629</span> <span class="keyword">template</span> <<span class="keywordtype">int</span> N></div>
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<div class="line"><a name="l00630"></a><span class="lineno"> 630</span> <span class="keyword">struct </span>base_channel_type_impl<packed_channel_value<N> ></div>
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<div class="line"><a name="l00631"></a><span class="lineno"> 631</span> { <span class="keyword">typedef</span> <span class="keyword">typename</span> packed_channel_value<N>::integer_t type; };</div>
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|
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span> </div>
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<div class="line"><a name="l00633"></a><span class="lineno"> 633</span> <span class="keyword">template</span> <<span class="keyword">typename</span> B, <span class="keywordtype">int</span> F, <span class="keywordtype">int</span> N, <span class="keywordtype">bool</span> M></div>
|
|
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span> <span class="keyword">struct </span>base_channel_type_impl<packed_channel_reference<B, F, N, M> ></div>
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|
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span> { <span class="keyword">typedef</span> <span class="keyword">typename</span> packed_channel_reference<B,F,N,M>::integer_t type; };</div>
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<div class="line"><a name="l00636"></a><span class="lineno"> 636</span> </div>
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<div class="line"><a name="l00637"></a><span class="lineno"> 637</span> <span class="keyword">template</span> <<span class="keyword">typename</span> B, <span class="keywordtype">int</span> N, <span class="keywordtype">bool</span> M></div>
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<div class="line"><a name="l00638"></a><span class="lineno"> 638</span> <span class="keyword">struct </span>base_channel_type_impl<packed_dynamic_channel_reference<B, N, M> ></div>
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|
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span> { <span class="keyword">typedef</span> <span class="keyword">typename</span> packed_dynamic_channel_reference<B,N,M>::integer_t type; };</div>
|
|
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span> </div>
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|
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span> <span class="keyword">template</span> <<span class="keyword">typename</span> ChannelValue, <span class="keyword">typename</span> MinV, <span class="keyword">typename</span> MaxV></div>
|
|
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span> <span class="keyword">struct </span>base_channel_type_impl<scoped_channel_value<ChannelValue, MinV, MaxV> ></div>
|
|
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span> { <span class="keyword">typedef</span> ChannelValue type; };</div>
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<div class="line"><a name="l00644"></a><span class="lineno"> 644</span> </div>
|
|
<div class="line"><a name="l00645"></a><span class="lineno"> 645</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
|
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<div class="line"><a name="l00646"></a><span class="lineno"> 646</span> <span class="keyword">struct </span>base_channel_type : base_channel_type_impl<typename remove_cv<T>::type > {};</div>
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<div class="line"><a name="l00647"></a><span class="lineno"> 647</span> </div>
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<div class="line"><a name="l00648"></a><span class="lineno"> 648</span> }} <span class="comment">//namespace boost::gil</span></div>
|
|
<div class="line"><a name="l00649"></a><span class="lineno"> 649</span> </div>
|
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<div class="line"><a name="l00650"></a><span class="lineno"> 650</span> <span class="preprocessor">#endif</span></div>
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<div class="ttc" id="group___packed_channel_dynamic_reference_model_html_gac4c1b188cdeb2280d9c803726e4d2cdc"><div class="ttname"><a href="group___packed_channel_dynamic_reference_model.html#gac4c1b188cdeb2280d9c803726e4d2cdc">std::swap</a></div><div class="ttdeci">void swap(const boost::gil::packed_dynamic_channel_reference< BF, NB, M > x, const boost::gil::packed_dynamic_channel_reference< BF, NB, M > y)</div><div class="ttdoc">swap for packed_dynamic_channel_reference </div><div class="ttdef"><b>Definition:</b> channel.hpp:603</div></div>
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<div class="ttc" id="structboost_1_1gil_1_1scoped__channel__value_html"><div class="ttname"><a href="structboost_1_1gil_1_1scoped__channel__value.html">boost::gil::scoped_channel_value</a></div><div class="ttdoc">A channel adaptor that modifies the range of the source channel. Models: ChannelValueConcept. </div><div class="ttdef"><b>Definition:</b> channel.hpp:156</div></div>
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<div class="ttc" id="classboost_1_1gil_1_1packed__dynamic__channel__reference_3_01_bit_field_00_01_num_bits_00_01false_01_4_html"><div class="ttname"><a href="classboost_1_1gil_1_1packed__dynamic__channel__reference_3_01_bit_field_00_01_num_bits_00_01false_01_4.html">boost::gil::packed_dynamic_channel_reference< BitField, NumBits, false ></a></div><div class="ttdoc">Models a constant subbyte channel reference whose bit offset is a runtime parameter. Models ChannelConcept Same as packed_channel_reference, except that the offset is a runtime parameter. </div><div class="ttdef"><b>Definition:</b> channel.hpp:510</div></div>
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<div class="ttc" id="structboost_1_1gil_1_1channel__traits_html"><div class="ttname"><a href="structboost_1_1gil_1_1channel__traits.html">boost::gil::channel_traits</a></div><div class="ttdoc">Traits for channels. Contains the following members: </div><div class="ttdef"><b>Definition:</b> channel.hpp:114</div></div>
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<div class="ttc" id="gil__config_8hpp_html"><div class="ttname"><a href="gil__config_8hpp.html">gil_config.hpp</a></div><div class="ttdoc">GIL configuration file. </div></div>
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<div class="ttc" id="classboost_1_1gil_1_1packed__dynamic__channel__reference_3_01_bit_field_00_01_num_bits_00_01true_01_4_html"><div class="ttname"><a href="classboost_1_1gil_1_1packed__dynamic__channel__reference_3_01_bit_field_00_01_num_bits_00_01true_01_4.html">boost::gil::packed_dynamic_channel_reference< BitField, NumBits, true ></a></div><div class="ttdoc">Models a mutable subbyte channel reference whose bit offset is a runtime parameter. Models ChannelConcept Same as packed_channel_reference, except that the offset is a runtime parameter. </div><div class="ttdef"><b>Definition:</b> channel.hpp:539</div></div>
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<div class="ttc" id="utilities_8hpp_html"><div class="ttname"><a href="utilities_8hpp.html">utilities.hpp</a></div><div class="ttdoc">Various utilities not specific to the image library. Some are non-standard STL extensions or generic ...</div></div>
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