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- <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright 2005-2007 Adobe Systems Incorporated</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">//</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Distributed under the Boost Software License, Version 1.0</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// See accompanying file LICENSE_1_0.txt or copy at</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// http://www.boost.org/LICENSE_1_0.txt</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#ifndef BOOST_GIL_EXTENSION_DYNAMIC_IMAGE_GIL_REDUCE_HPP</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#define BOOST_GIL_EXTENSION_DYNAMIC_IMAGE_GIL_REDUCE_HPP</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#ifdef BOOST_GIL_DOXYGEN_ONLY</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#undef BOOST_GIL_REDUCE_CODE_BLOAT</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#ifdef BOOST_GIL_REDUCE_CODE_BLOAT</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <boost/gil/extension/dynamic_image/dynamic_at_c.hpp></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <boost/gil/metafunctions.hpp></span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <boost/gil/typedefs.hpp></span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <boost/mpl/back.hpp></span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <boost/mpl/insert.hpp></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <boost/mpl/insert_range.hpp></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <boost/mpl/long.hpp></span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <boost/mpl/logical.hpp></span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <boost/mpl/range_c.hpp></span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <boost/mpl/vector.hpp></span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <boost/mpl/vector_c.hpp></span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <boost/mpl/transform.hpp></span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <type_traits></span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">// Max number of cases in the cross-expension of binary operation for it to be reduced as unary</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#define GIL_BINARY_REDUCE_LIMIT 226</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>mpl {</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment">// Constructs for static-to-dynamic integer convesion</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">template</span> <<span class="keyword">typename</span> SrcTypes, <span class="keyword">typename</span> DstTypes></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="keyword">struct </span>mapping_vector {};</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="keyword">template</span> <<span class="keyword">typename</span> SrcTypes, <span class="keyword">typename</span> DstTypes, <span class="keywordtype">long</span> K></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="keyword">struct </span><a class="code" href="group___color_base_model_homogeneous.html#gae2eaf5eecbad94d7dc6432b8f759fba0">at_c</a><mapping_vector<SrcTypes,DstTypes>, K></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> {</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">static</span> <span class="keyword">const</span> std::size_t value=size<DstTypes>::value - order<DstTypes, typename gil::at_c<SrcTypes,K>::type>::value +1;</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keyword">using</span> type = size_t<value>;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> };</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">template</span> <<span class="keyword">typename</span> SrcTypes, <span class="keyword">typename</span> DstTypes></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="keyword">struct </span>size<mapping_vector<SrcTypes,DstTypes>></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> {</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> size<SrcTypes>::type;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">static</span> <span class="keyword">const</span> std::size_t value=type::value;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> };</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="keyword">namespace </span>detail {</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> SFirst, std::<span class="keywordtype">size_t</span> NLeft></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">struct </span>copy_to_vector_impl {</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">using</span> T = <span class="keyword">typename</span> deref<SFirst>::type;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">using</span> next = <span class="keyword">typename</span> next<SFirst>::type;</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keyword">using</span> rest = <span class="keyword">typename</span> copy_to_vector_impl<next, NLeft-1>::type;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> push_front<rest, T>::type;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  };</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> SFirst></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keyword">struct </span>copy_to_vector_impl<SFirst,1></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  {</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keyword">using</span> type = vector<typename deref<SFirst>::type>;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  };</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> }</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Src></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="keyword">struct </span>copy_to_vector</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> {</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> detail::copy_to_vector_impl<typename begin<Src>::type, size<Src>::value>::type;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> };</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="keyword">template</span> <></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="keyword">struct </span>copy_to_vector<set<>></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> {</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keyword">using</span> type = vector0<>;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> };</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> } } <span class="comment">// boost::mpl</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil {</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Types, <span class="keyword">typename</span> Op></div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="keyword">struct </span>unary_reduce_impl {</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keyword">using</span> reduced_t = <span class="keyword">typename</span> mpl::transform<Types, detail::reduce<Op, mpl::_1> >::type;</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keyword">using</span> unique_t = <span class="keyword">typename</span> mpl::copy<reduced_t, mpl::inserter<mpl::set<>, mpl::insert<mpl::_1,mpl::_2>>>::type;</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> is_single=mpl::size<unique_t>::value==1;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> };</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> template <typename Types, typename Op, bool IsSingle=unary_reduce_impl<Types,Op>::is_single></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="keyword">struct </span>unary_reduce : <span class="keyword">public</span> unary_reduce_impl<Types,Op></div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> {</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keyword">using</span> reduced_t = <span class="keyword">typename</span> unary_reduce_impl<Types,Op>::reduced_t;</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keyword">using</span> unique_t = <span class="keyword">typename</span> unary_reduce_impl<Types,Op>::unique_t;</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> <span class="keyword">inline</span> map_index(std::size_t index)</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  {</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keyword">using</span> indices_t = <span class="keyword">typename</span> mpl::mapping_vector<reduced_t, unique_t>;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">return</span> gil::at_c<indices_t, unsigned short>(index);</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  }</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Bits> BOOST_FORCEINLINE <span class="keyword">static</span> <span class="keyword">typename</span> Op::result_type applyc(<span class="keyword">const</span> Bits& bits, std::size_t index, Op op) {</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">return</span> apply_operation_basec<unique_t>(bits,map_index(index),op);</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  }</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Bits> BOOST_FORCEINLINE <span class="keyword">static</span> <span class="keyword">typename</span> Op::result_type apply(Bits& bits, std::size_t index, Op op) {</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">return</span> apply_operation_base<unique_t>(bits,map_index(index),op);</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  }</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> };</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Types, <span class="keyword">typename</span> Op></div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="keyword">struct </span>unary_reduce<Types,Op,true> : <span class="keyword">public</span> unary_reduce_impl<Types,Op> {</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keyword">using</span> unique_t = <span class="keyword">typename</span> unary_reduce_impl<Types,Op>::unique_t;</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> <span class="keyword">inline</span> map_index(std::size_t index) { <span class="keywordflow">return</span> 0; }</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Bits> BOOST_FORCEINLINE <span class="keyword">static</span> <span class="keyword">typename</span> Op::result_type applyc(<span class="keyword">const</span> Bits& bits, std::size_t index, Op op) {</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordflow">return</span> op(*gil_reinterpret_cast_c<<span class="keyword">const</span> <span class="keyword">typename</span> mpl::front<unique_t>::type*>(&bits));</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  }</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Bits> BOOST_FORCEINLINE <span class="keyword">static</span> <span class="keyword">typename</span> Op::result_type apply(Bits& bits, std::size_t index, Op op) {</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">return</span> op(*gil_reinterpret_cast<<span class="keyword">typename</span> mpl::front<unique_t>::type*>(&bits));</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  }</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> };</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> </div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="keyword">namespace </span>detail {</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keyword">struct </span>pair_generator {</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Vec2> <span class="keyword">struct </span>apply</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  {</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keyword">using</span> type = std::pair<const typename mpl::at_c<Vec2,0>::type*, <span class="keyword">const</span> <span class="keyword">typename</span> mpl::at_c<Vec2,1>::type*>;</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  };</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  };</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="comment">// When the types are not too large, applies reduce on their cross product</span></div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Unary1, <span class="keyword">typename</span> Unary2, <span class="keyword">typename</span> Op, <span class="keywordtype">bool</span> IsComplex></div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keyword">struct </span>binary_reduce_impl</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  {</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="comment">//private:</span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keyword">using</span> vec1_types = <span class="keyword">typename</span> mpl::copy_to_vector<typename Unary1::unique_t>::type;</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keyword">using</span> vec2_types = <span class="keyword">typename</span> mpl::copy_to_vector<typename Unary2::unique_t>::type;</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> </div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keyword">using</span> BIN_TYPES = mpl::cross_vector<mpl::vector2<vec1_types, vec2_types>, pair_generator>;</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keyword">using</span> bin_reduced_t = unary_reduce<BIN_TYPES,Op>;</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span> </div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> <span class="keyword">inline</span> map_index(std::size_t index1, std::size_t index2) {</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> r1=Unary1::map_index(index1);</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> r2=Unary2::map_index(index2);</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">return</span> bin_reduced_t::map_index(r2*mpl::size<vec1_types>::value + r1);</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  }</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keyword">using</span> unique_t = <span class="keyword">typename</span> bin_reduced_t::unique_t</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> </div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Bits1, <span class="keyword">typename</span> Bits2></div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keyword">static</span> <span class="keyword">typename</span> Op::result_type <span class="keyword">inline</span> apply(<span class="keyword">const</span> Bits1& bits1, std::size_t index1, <span class="keyword">const</span> Bits2& bits2, std::size_t index2, Op op) {</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  std::pair<const void*,const void*> pr(&bits1, &bits2);</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordflow">return</span> apply_operation_basec<unique_t>(pr, map_index(index1,index2),op);</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  }</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  };</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span> </div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="comment">// When the types are large performs a double-dispatch. Binary reduction is not done.</span></div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Unary1, <span class="keyword">typename</span> Unary2, <span class="keyword">typename</span> Op></div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keyword">struct </span>binary_reduce_impl<Unary1,Unary2,Op,true> {</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Bits1, <span class="keyword">typename</span> Bits2></div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keyword">static</span> <span class="keyword">typename</span> Op::result_type <span class="keyword">inline</span> apply(<span class="keyword">const</span> Bits1& bits1, std::size_t index1, <span class="keyword">const</span> Bits2& bits2, std::size_t index2, Op op) {</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordflow">return</span> apply_operation_base<Unary1::unique_t,Unary2::unique_t>(bits1, index1, bits2, index2, op);</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  }</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  };</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> }</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> </div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> </div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Types1, <span class="keyword">typename</span> Types2, <span class="keyword">typename</span> Op></div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="keyword">struct </span>binary_reduce</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span> {</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="comment">//private:</span></div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keyword">using</span> unary1_t = unary_reduce<Types1,Op>;</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keyword">using</span> unary2_t = unary_reduce<Types2,Op>;</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keyword">static</span> <span class="keyword">const</span> std::size_t CROSS_SIZE = mpl::size<typename unary1_t::unique_t>::value *</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  mpl::size<typename unary2_t::unique_t>::value;</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> </div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keyword">using</span> impl = detail::binary_reduce_impl<unary1_t,unary2_t,Op, (CROSS_SIZE>GIL_BINARY_REDUCE_LIMIT)>;</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Bits1, <span class="keyword">typename</span> Bits2></div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keyword">static</span> <span class="keyword">typename</span> Op::result_type <span class="keyword">inline</span> apply(<span class="keyword">const</span> Bits1& bits1, std::size_t index1, <span class="keyword">const</span> Bits2& bits2, std::size_t index2, Op op) {</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">return</span> impl::apply(bits1,index1,bits2,index2,op);</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  }</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> };</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Types, <span class="keyword">typename</span> UnaryOp></div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> BOOST_FORCEINLINE <span class="keyword">typename</span> UnaryOp::result_type <a class="code" href="group___variant.html#ga82b387581cf015301eaed7798304e367">apply_operation</a>(variant<Types>& arg, UnaryOp op) {</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordflow">return</span> unary_reduce<Types,UnaryOp>::template apply(arg._bits, arg._index ,op);</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> }</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> </div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Types, <span class="keyword">typename</span> UnaryOp></div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> BOOST_FORCEINLINE <span class="keyword">typename</span> UnaryOp::result_type <a class="code" href="group___variant.html#ga82b387581cf015301eaed7798304e367">apply_operation</a>(<span class="keyword">const</span> variant<Types>& arg, UnaryOp op) {</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keywordflow">return</span> unary_reduce<Types,UnaryOp>::template applyc(arg._bits, arg._index ,op);</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> }</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span> </div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Types1, <span class="keyword">typename</span> Types2, <span class="keyword">typename</span> BinaryOp></div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span> BOOST_FORCEINLINE <span class="keyword">typename</span> BinaryOp::result_type <a class="code" href="group___variant.html#ga82b387581cf015301eaed7798304e367">apply_operation</a>(<span class="keyword">const</span> variant<Types1>& arg1, <span class="keyword">const</span> variant<Types2>& arg2, BinaryOp op) {</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keywordflow">return</span> binary_reduce<Types1,Types2,BinaryOp>::template apply(arg1._bits, arg1._index, arg2._bits, arg2._index, op);</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> }</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span> </div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="preprocessor">#undef GIL_BINARY_REDUCE_LIMIT</span></div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span> </div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span> } } <span class="comment">// namespace gil</span></div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span> </div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span> <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>mpl {</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span> </div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="keyword">template</span> <<span class="keyword">typename</span> VecOfVecs, <span class="keyword">typename</span> TypeGen></div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="keyword">struct </span>cross_vector {};</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span> </div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="keyword">template</span> <<span class="keyword">typename</span> VecOfVecs, <span class="keyword">typename</span> TypeGen, std::<span class="keywordtype">size_t</span> K></div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="keyword">struct </span>cross_iterator</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span> {</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keyword">using</span> category = mpl::random_access_iterator_tag;</div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span> };</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span> </div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span> </div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span> <span class="keyword">template</span> <<span class="keyword">typename</span> VecOfVecs, <span class="keyword">typename</span> TypeGen, std::<span class="keywordtype">size_t</span> K></div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span> <span class="keyword">struct </span>deref<cross_iterator<VecOfVecs,TypeGen,K>></div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span> {</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keyword">using</span> DerefTypes = <span class="keyword">typename</span> detail::select_subvector_c<VecOfVecs, K>::type;</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> TypeGen::template apply<DerefTypes>::type;</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span> };</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span> </div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span> <span class="keyword">template</span> <<span class="keyword">typename</span> VecOfVecs, <span class="keyword">typename</span> TypeGen, std::<span class="keywordtype">size_t</span> K></div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span> <span class="keyword">struct </span>next<cross_iterator<VecOfVecs,TypeGen,K>></div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span> {</div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keyword">using</span> type = cross_iterator<VecOfVecs,TypeGen,K+1>;</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span> };</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span> </div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span> <span class="keyword">template</span> <<span class="keyword">typename</span> VecOfVecs, <span class="keyword">typename</span> TypeGen, std::<span class="keywordtype">size_t</span> K></div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span> <span class="keyword">struct </span>prior<cross_iterator<VecOfVecs,TypeGen,K>></div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span> {</div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="keyword">using</span> type = cross_iterator<VecOfVecs,TypeGen,K-1>;</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span> };</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span> </div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span> <span class="keyword">template</span> <<span class="keyword">typename</span> VecOfVecs, <span class="keyword">typename</span> TypeGen, std::<span class="keywordtype">size_t</span> K, <span class="keyword">typename</span> Distance></div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span> <span class="keyword">struct </span>advance<cross_iterator<VecOfVecs,TypeGen,K>, Distance></div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span> {</div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keyword">using</span> type = cross_iterator<VecOfVecs,TypeGen,K+Distance::value>;</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span> };</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span> </div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span> <span class="comment">// (shortened the names of the template arguments - otherwise doxygen cannot parse this...)</span></div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span> <span class="keyword">template</span> <<span class="keyword">typename</span> VecOfVecs, <span class="keyword">typename</span> TypeGen, std::<span class="keywordtype">size_t</span> K1, std::<span class="keywordtype">size_t</span> K2></div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span> <span class="keyword">struct </span>distance<cross_iterator<VecOfVecs,TypeGen,K1>, cross_iterator<VecOfVecs,TypeGen,K2>></div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span> {</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="keyword">using</span> type = <span class="keywordtype">size_t</span><K2-K1>;</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span> };</div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span> </div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span> <span class="keyword">template</span> <<span class="keyword">typename</span> VecOfVecs, <span class="keyword">typename</span> TypeGen></div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span> <span class="keyword">struct </span>size<cross_vector<VecOfVecs,TypeGen>></div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span> {</div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> fold<VecOfVecs, size_t<1>, times<_1, size<_2>>>::type;</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keyword">static</span> <span class="keyword">const</span> std::size_t value=type::value;</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span> };</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span> </div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span> <span class="keyword">template</span> <<span class="keyword">typename</span> VecOfVecs, <span class="keyword">typename</span> TypeGen></div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span> <span class="keyword">struct </span>empty<cross_vector<VecOfVecs,TypeGen>> {</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> empty<VecOfVecs>::type;</div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span> };</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span> </div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="keyword">template</span> <<span class="keyword">typename</span> VecOfVecs, <span class="keyword">typename</span> TypeGen, <span class="keyword">typename</span> K></div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="keyword">struct </span>at<cross_vector<VecOfVecs,TypeGen>, K></div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span> {</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="keyword">using</span> KthIterator = cross_iterator<VecOfVecs,TypeGen,K::value>;</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> deref<KthIterator>::type;</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span> };</div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span> </div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span> <span class="keyword">template</span> <<span class="keyword">typename</span> VecOfVecs, <span class="keyword">typename</span> TypeGen></div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="keyword">struct </span>begin<cross_vector<VecOfVecs,TypeGen>></div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span> {</div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="keyword">using</span> type = cross_iterator<VecOfVecs,TypeGen,0>;</div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span> };</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span> </div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span> <span class="keyword">template</span> <<span class="keyword">typename</span> VecOfVecs, <span class="keyword">typename</span> TypeGen></div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span> <span class="keyword">struct </span>end<cross_vector<VecOfVecs,TypeGen>></div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span> {</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="keyword">using</span> this_t = cross_vector<VecOfVecs,TypeGen>;</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="keyword">using</span> type = cross_iterator<VecOfVecs,TypeGen,size<this_t>::value>;</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span> };</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span> </div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span> <span class="keyword">template</span> <<span class="keyword">typename</span> VecOfVecs, <span class="keyword">typename</span> TypeGen></div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span> <span class="keyword">struct </span>front<cross_vector<VecOfVecs,TypeGen>> {</div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="keyword">using</span> this_t = cross_vector<VecOfVecs,TypeGen>;</div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> deref<typename begin<this_t>::type>::type;</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span> };</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span> </div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span> <span class="keyword">template</span> <<span class="keyword">typename</span> VecOfVecs, <span class="keyword">typename</span> TypeGen></div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span> <span class="keyword">struct </span>back<cross_vector<VecOfVecs,TypeGen>></div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span> {</div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="keyword">using</span> this_t = cross_vector<VecOfVecs,TypeGen>;</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="keyword">using</span> size = <span class="keyword">typename</span> size<this_t>::type;</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keyword">using</span> last_index = <span class="keyword">typename</span> minus<size, size_t<1>>::type;</div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> at<this_t, last_index>::type;</div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span> };</div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span> </div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span> <span class="keyword">template</span> <<span class="keyword">typename</span> VecOfVecs, <span class="keyword">typename</span> TypeGen, <span class="keyword">typename</span> OPP></div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span> <span class="keyword">struct </span>transform<cross_vector<VecOfVecs,TypeGen>, OPP></div><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>  <span class="keyword">using</span> Op = <span class="keyword">typename</span> lambda<OPP>::type;</div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="keyword">struct </span>adapter</div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  {</div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Elements></div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="keyword">struct </span>apply</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  {</div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="keyword">using</span> orig_t = <span class="keyword">typename</span> TypeGen::template apply<Elements>::type;</div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> Op::template apply<orig_t>::type;</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  };</div><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>  <span class="keyword">using</span> type = cross_vector<VecOfVecs, adapter>;</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span> };</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span> </div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span> } } <span class="comment">// boost::mpl</span></div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span> </div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span> <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil {</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> <span class="keyword">template</span> <<span class="keyword">typename</span> Types, <span class="keyword">typename</span> T> <span class="keyword">struct </span>type_to_index;</div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span> <span class="keyword">template</span> <<span class="keyword">typename</span> V> <span class="keyword">struct </span>view_is_basic;</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span> <span class="keyword">struct </span>rgb_t;</div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span> <span class="keyword">struct </span>lab_t;</div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span> <span class="keyword">struct </span>hsb_t;</div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span> <span class="keyword">struct </span>cmyk_t;</div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span> <span class="keyword">struct </span>rgba_t;</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span> <span class="keyword">struct </span>error_t;</div><div class="line"><a name="l00454"></a><span class="lineno"> 454</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> <span class="keyword">namespace </span>detail {</div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Op, <span class="keyword">typename</span> T></div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="keyword">struct </span>reduce</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  {</div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  <span class="keyword">using</span> type = T;</div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  };</div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span> </div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span> </div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Op, <span class="keyword">typename</span> View, <span class="keywordtype">bool</span> IsBasic></div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keyword">struct </span>reduce_view_basic</div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  {</div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="keyword">using</span> type = View;</div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  };</div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span> </div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Op, <span class="keyword">typename</span> Loc></div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  <span class="keyword">struct </span>reduce<Op, image_view<Loc>></div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  : <span class="keyword">public</span> reduce_view_basic<Op,image_view<Loc>,view_is_basic<image_view<Loc>>::value> {};</div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span> </div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span> </div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Op, <span class="keyword">typename</span> Img, <span class="keywordtype">bool</span> IsBasic></div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  <span class="keyword">struct </span>reduce_image_basic</div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  {</div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <span class="keyword">using</span> type = Img;</div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  };</div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span> </div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Op, <span class="keyword">typename</span> V, <span class="keyword">typename</span> Alloc></div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <span class="keyword">struct </span>reduce<Op, image<V,Alloc>> : <span class="keyword">public</span> reduce_image_basic<Op,image<V,Alloc>,image_is_basic<image<V,Alloc>>::value > {};</div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span> </div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span> </div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Op, <span class="keyword">typename</span> V1, <span class="keyword">typename</span> V2, <span class="keywordtype">bool</span> AreBasic></div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="keyword">struct </span>reduce_views_basic</div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  {</div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="keyword">using</span> type = std::pair<const V1*, const V2*>;</div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  };</div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span> </div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Op, <span class="keyword">typename</span> L1, <span class="keyword">typename</span> L2></div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <span class="keyword">struct </span>reduce<Op, std::pair<const image_view<L1>*, const image_view<L2>*>></div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  : <span class="keyword">public</span> reduce_views_basic<Op,image_view<L1>,image_view<L2>,</div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  mpl::and_<view_is_basic<image_view<L1>>, view_is_basic<image_view<L2>>>::value ></div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  {};</div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span> </div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span> </div><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>  <span class="keyword">template</span> <<span class="keyword">typename</span> CS></div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  <span class="keyword">struct </span>reduce_color_space</div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  {</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  <span class="keyword">using</span> type = CS;</div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  };</div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span> </div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>reduce_color_space<lab_t> { <span class="keyword">using</span> type = rgb_t; };</div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>reduce_color_space<hsb_t> { <span class="keyword">using</span> type = rgb_t; };</div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>reduce_color_space<cmyk_t> { <span class="keyword">using</span> type = rgba_t; };</div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span> </div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <span class="comment">/*</span></div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span> <span class="comment"></span></div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span> <span class="comment"> template <typename Vec, int Basis, int VecSize></span></div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span> <span class="comment"> struct type_vec_to_integer_impl {</span></div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span> <span class="comment"> using last = typename mpl::back<Vec>::type;</span></div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span> <span class="comment"> using rest = typename mpl::pop_back<Vec>::type;</span></div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span> <span class="comment"> static const int value = type_vec_to_integer_impl<rest, Basis, VecSize-1>::value * Basis + last::value;</span></div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span> <span class="comment"> };</span></div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span> <span class="comment"></span></div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span> <span class="comment"> template <typename Vec, int Basis></span></div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span> <span class="comment"> struct type_vec_to_integer_impl<Vec,Basis,0> {</span></div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span> <span class="comment"> static const int value=0;</span></div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span> <span class="comment"> };</span></div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span> <span class="comment"></span></div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span> <span class="comment"> template <typename Vec, int Basis=10></span></div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span> <span class="comment"> struct type_vec_to_integer {</span></div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span> <span class="comment"> static const int value = type_vec_to_integer_impl<Vec,Basis, mpl::size<Vec>::value>::value;</span></div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span> <span class="comment"> };</span></div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span> <span class="comment"></span></div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span> <span class="comment"> // Given two color spaces and the mapping of the channels between them, returns the reduced pair of color spaces</span></div><div class="line"><a name="l00564"></a><span class="lineno"> 564</span> <span class="comment"> // The default version performs no reduction</span></div><div class="line"><a name="l00565"></a><span class="lineno"> 565</span> <span class="comment"> template <typename SrcColorSpace, typename DstColorSpace, int Mapping></span></div><div class="line"><a name="l00566"></a><span class="lineno"> 566</span> <span class="comment"> struct reduce_color_spaces_impl {</span></div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span> <span class="comment"> using first_t = SrcColorSpace;</span></div><div class="line"><a name="l00568"></a><span class="lineno"> 568</span> <span class="comment"> using second_t = DstColorSpace;</span></div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span> <span class="comment"> };</span></div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span> <span class="comment"></span></div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span> <span class="comment"> // 012: RGB-RGB, bgr-bgr, lab-lab, hsb-hsb</span></div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span> <span class="comment"> template <typename SrcColorSpace, typename DstColorSpace></span></div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span> <span class="comment"> struct reduce_color_spaces_impl<SrcColorSpace,DstColorSpace,12> {</span></div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span> <span class="comment"> using first_t = rgb_t;</span></div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span> <span class="comment"> using second_t = rgb_t;</span></div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span> <span class="comment"> };</span></div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span> <span class="comment"></span></div><div class="line"><a name="l00578"></a><span class="lineno"> 578</span> <span class="comment"> // 210: RGB-bgr, bgr-RGB</span></div><div class="line"><a name="l00579"></a><span class="lineno"> 579</span> <span class="comment"> template <typename SrcColorSpace, typename DstColorSpace></span></div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span> <span class="comment"> struct reduce_color_spaces_impl<SrcColorSpace,DstColorSpace,210> {</span></div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span> <span class="comment"> using first_t = rgb_t;</span></div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span> <span class="comment"> using second_t = bgr_t;</span></div><div class="line"><a name="l00583"></a><span class="lineno"> 583</span> <span class="comment"> };</span></div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span> <span class="comment"></span></div><div class="line"><a name="l00585"></a><span class="lineno"> 585</span> <span class="comment"> // 0123: RGBA-RGBA, bgra-bgra, argb-argb, abgr-abgr cmyk-cmyk</span></div><div class="line"><a name="l00586"></a><span class="lineno"> 586</span> <span class="comment"> template <typename SrcColorSpace, typename DstColorSpace></span></div><div class="line"><a name="l00587"></a><span class="lineno"> 587</span> <span class="comment"> struct reduce_color_spaces_impl<SrcColorSpace,DstColorSpace,123> {</span></div><div class="line"><a name="l00588"></a><span class="lineno"> 588</span> <span class="comment"> using first_t = rgba_t;</span></div><div class="line"><a name="l00589"></a><span class="lineno"> 589</span> <span class="comment"> using second_t = rgba_t;</span></div><div class="line"><a name="l00590"></a><span class="lineno"> 590</span> <span class="comment"> };</span></div><div class="line"><a name="l00591"></a><span class="lineno"> 591</span> <span class="comment"></span></div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span> <span class="comment"> // 3210: RGBA-abgr, bgra-argb, argb-bgra, abgr-RGBA</span></div><div class="line"><a name="l00593"></a><span class="lineno"> 593</span> <span class="comment"> template <typename SrcColorSpace, typename DstColorSpace></span></div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span> <span class="comment"> struct reduce_color_spaces_impl<SrcColorSpace,DstColorSpace,3210> {</span></div><div class="line"><a name="l00595"></a><span class="lineno"> 595</span> <span class="comment"> using first_t = rgba_t;</span></div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span> <span class="comment"> using second_t = abgr_t;</span></div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span> <span class="comment"> };</span></div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span> <span class="comment"></span></div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span> <span class="comment"> // 1230: RGBA-argb, bgra-abgr</span></div><div class="line"><a name="l00600"></a><span class="lineno"> 600</span> <span class="comment"> template <typename SrcColorSpace, typename DstColorSpace></span></div><div class="line"><a name="l00601"></a><span class="lineno"> 601</span> <span class="comment"> struct reduce_color_spaces_impl<SrcColorSpace,DstColorSpace,1230> {</span></div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span> <span class="comment"> using first_t = rgba_t;</span></div><div class="line"><a name="l00603"></a><span class="lineno"> 603</span> <span class="comment"> using second_t = argb_t;</span></div><div class="line"><a name="l00604"></a><span class="lineno"> 604</span> <span class="comment"> };</span></div><div class="line"><a name="l00605"></a><span class="lineno"> 605</span> <span class="comment"></span></div><div class="line"><a name="l00606"></a><span class="lineno"> 606</span> <span class="comment"> // 2103: RGBA-bgra, bgra-RGBA (uses subclass to ensure that base color space is not reduced to derived)</span></div><div class="line"><a name="l00607"></a><span class="lineno"> 607</span> <span class="comment"> template <typename SrcColorSpace, typename DstColorSpace></span></div><div class="line"><a name="l00608"></a><span class="lineno"> 608</span> <span class="comment"> struct reduce_color_spaces_impl<SrcColorSpace,DstColorSpace,2103> {</span></div><div class="line"><a name="l00609"></a><span class="lineno"> 609</span> <span class="comment"> using first_t = rgba_t;</span></div><div class="line"><a name="l00610"></a><span class="lineno"> 610</span> <span class="comment"> using second_t = bgra_t;</span></div><div class="line"><a name="l00611"></a><span class="lineno"> 611</span> <span class="comment"> };</span></div><div class="line"><a name="l00612"></a><span class="lineno"> 612</span> <span class="comment"></span></div><div class="line"><a name="l00613"></a><span class="lineno"> 613</span> <span class="comment"> // 3012: argb-RGBA, abgr-bgra</span></div><div class="line"><a name="l00614"></a><span class="lineno"> 614</span> <span class="comment"> template <typename SrcColorSpace, typename DstColorSpace></span></div><div class="line"><a name="l00615"></a><span class="lineno"> 615</span> <span class="comment"> struct reduce_color_spaces_impl<SrcColorSpace,DstColorSpace,3012> {</span></div><div class="line"><a name="l00616"></a><span class="lineno"> 616</span> <span class="comment"> using first_t = argb_t;</span></div><div class="line"><a name="l00617"></a><span class="lineno"> 617</span> <span class="comment"> using second_t = rgba_t;</span></div><div class="line"><a name="l00618"></a><span class="lineno"> 618</span> <span class="comment"> };</span></div><div class="line"><a name="l00619"></a><span class="lineno"> 619</span> <span class="comment"></span></div><div class="line"><a name="l00620"></a><span class="lineno"> 620</span> <span class="comment"> // 0321: argb-abgr, abgr-argb</span></div><div class="line"><a name="l00621"></a><span class="lineno"> 621</span> <span class="comment"> template <typename SrcColorSpace, typename DstColorSpace></span></div><div class="line"><a name="l00622"></a><span class="lineno"> 622</span> <span class="comment"> struct reduce_color_spaces_impl<SrcColorSpace,DstColorSpace,321> {</span></div><div class="line"><a name="l00623"></a><span class="lineno"> 623</span> <span class="comment"> using first_t = argb_t;</span></div><div class="line"><a name="l00624"></a><span class="lineno"> 624</span> <span class="comment"> using second_t = abgr_t;</span></div><div class="line"><a name="l00625"></a><span class="lineno"> 625</span> <span class="comment"> };</span></div><div class="line"><a name="l00626"></a><span class="lineno"> 626</span> <span class="comment"></span></div><div class="line"><a name="l00627"></a><span class="lineno"> 627</span> <span class="comment"> template <typename SrcColorSpace, typename DstColorSpace></span></div><div class="line"><a name="l00628"></a><span class="lineno"> 628</span> <span class="comment"> struct reduce_color_spaces {</span></div><div class="line"><a name="l00629"></a><span class="lineno"> 629</span> <span class="comment"> using src_order_t = typename channel_order<SrcColorSpace>::type;</span></div><div class="line"><a name="l00630"></a><span class="lineno"> 630</span> <span class="comment"> using dst_order_t = typename channel_order<DstColorSpace>::type;</span></div><div class="line"><a name="l00631"></a><span class="lineno"> 631</span> <span class="comment"> using mapping = typename mpl::transform<src_order_t, type_to_index<dst_order_t,mpl::_1>>::type;</span></div><div class="line"><a name="l00632"></a><span class="lineno"> 632</span> <span class="comment"> static const int mapping_val = type_vec_to_integer<mapping>::value;</span></div><div class="line"><a name="l00633"></a><span class="lineno"> 633</span> <span class="comment"></span></div><div class="line"><a name="l00634"></a><span class="lineno"> 634</span> <span class="comment"> using _first_t = typename reduce_color_spaces_impl<SrcColorSpace,DstColorSpace,mapping_val>::first_t;</span></div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span> <span class="comment"> using _second_t = typename reduce_color_spaces_impl<SrcColorSpace,DstColorSpace,mapping_val>::second_t;</span></div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span> <span class="comment"> using swap_t = typename mpl::and_<color_space_is_base<DstColorSpace>, mpl::not_< color_space_is_base<_second_t>>>;</span></div><div class="line"><a name="l00637"></a><span class="lineno"> 637</span> <span class="comment"> public:</span></div><div class="line"><a name="l00638"></a><span class="lineno"> 638</span> <span class="comment"> using first_t = typename mpl::if_<swap_t, _second_t, _first_t>::type;</span></div><div class="line"><a name="l00639"></a><span class="lineno"> 639</span> <span class="comment"> using second_t = typename mpl::if_<swap_t, _first_t, _second_t>::type;</span></div><div class="line"><a name="l00640"></a><span class="lineno"> 640</span> <span class="comment"> };</span></div><div class="line"><a name="l00641"></a><span class="lineno"> 641</span> <span class="comment">*/</span></div><div class="line"><a name="l00642"></a><span class="lineno"> 642</span> <span class="comment">// TODO: Use the old code for reduce_color_spaces above to do color layout reduction</span></div><div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> SrcLayout, <span class="keyword">typename</span> DstLayout></div><div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  <span class="keyword">struct </span>reduce_color_layouts</div><div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  {</div><div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  <span class="keyword">using</span> first_t = SrcLayout;</div><div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  <span class="keyword">using</span> second_t = DstLayout;</div><div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  };</div><div class="line"><a name="l00649"></a><span class="lineno"> 649</span> </div><div class="line"><a name="l00655"></a><span class="lineno"> 655</span> </div><div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  <span class="keyword">struct </span>copy_pixels_fn;</div><div class="line"><a name="l00657"></a><span class="lineno"> 657</span> </div><div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  <span class="comment">/*</span></div><div class="line"><a name="l00659"></a><span class="lineno"> 659</span> <span class="comment"> // 1D reduce for copy_pixels reduces the channel to mutable and the color space to its base with same dimensions</span></div><div class="line"><a name="l00660"></a><span class="lineno"> 660</span> <span class="comment"> template <typename View></span></div><div class="line"><a name="l00661"></a><span class="lineno"> 661</span> <span class="comment"> struct reduce_view_basic<copy_pixels_fn,View,true> {</span></div><div class="line"><a name="l00662"></a><span class="lineno"> 662</span> <span class="comment"> private:</span></div><div class="line"><a name="l00663"></a><span class="lineno"> 663</span> <span class="comment"> using color_space_t = typename reduce_color_space<typename View::color_space_t>::type color_space_t; // reduce the color space</span></div><div class="line"><a name="l00664"></a><span class="lineno"> 664</span> <span class="comment"> using layout_t = layout<color_space_t, typename View::channel_mapping_t>;</span></div><div class="line"><a name="l00665"></a><span class="lineno"> 665</span> <span class="comment"> public:</span></div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span> <span class="comment"> using type = typename derived_view_type<View, use_default, layout_t, use_default, use_default, mpl::true_>::type;</span></div><div class="line"><a name="l00667"></a><span class="lineno"> 667</span> <span class="comment"> };</span></div><div class="line"><a name="l00668"></a><span class="lineno"> 668</span> <span class="comment">*/</span></div><div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  <span class="comment">// Incompatible views cannot be used in copy_pixels - will throw std::bad_cast</span></div><div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> V1, <span class="keyword">typename</span> V2, <span class="keywordtype">bool</span> Compatible></div><div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  <span class="keyword">struct </span>reduce_copy_pixop_compat</div><div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  {</div><div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  <span class="keyword">using</span> type = error_t;</div><div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  };</div><div class="line"><a name="l00675"></a><span class="lineno"> 675</span> </div><div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  <span class="comment">// For compatible basic views, reduce their color spaces based on their channel mapping.</span></div><div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  <span class="comment">// Make the source immutable and the destination mutable (they should already be that way)</span></div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> V1, <span class="keyword">typename</span> V2></div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  <span class="keyword">struct </span>reduce_copy_pixop_compat<V1,V2,true></div><div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  {</div><div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  <span class="keyword">using</span> layout1 = layout<typename V1::color_space_t, typename V1::channel_mapping_t>;</div><div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  <span class="keyword">using</span> layout2 = layout<typename V2::color_space_t, typename V2::channel_mapping_t>;</div><div class="line"><a name="l00683"></a><span class="lineno"> 683</span> </div><div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  <span class="keyword">using</span> L1 = <span class="keyword">typename</span> reduce_color_layouts<layout1,layout2>::first_t;</div><div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  <span class="keyword">using</span> L2 = <span class="keyword">typename</span> reduce_color_layouts<layout1,layout2>::second_t;</div><div class="line"><a name="l00686"></a><span class="lineno"> 686</span> </div><div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  <span class="keyword">using</span> DV1 = <span class="keyword">typename</span> derived_view_type<V1, use_default, L1, use_default, use_default, use_default, mpl::false_>::type;</div><div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  <span class="keyword">using</span> DV2 = <span class="keyword">typename</span> derived_view_type<V2, use_default, L2, use_default, use_default, use_default, mpl::true_ >::type;</div><div class="line"><a name="l00689"></a><span class="lineno"> 689</span> </div><div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  <span class="keyword">using</span> type = std::pair<const DV1*, const DV2*>;</div><div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  };</div><div class="line"><a name="l00692"></a><span class="lineno"> 692</span> </div><div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  <span class="comment">// The general 2D version branches into compatible and incompatible views</span></div><div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> V1, <span class="keyword">typename</span> V2></div><div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  <span class="keyword">struct </span>reduce_views_basic<copy_pixels_fn, V1, V2, true></div><div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  : <span class="keyword">public</span> reduce_copy_pixop_compat<V1, V2, mpl::and_<views_are_compatible<V1,V2>, view_is_mutable<V2>>::value > {</div><div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  };</div><div class="line"><a name="l00698"></a><span class="lineno"> 698</span> </div><div class="line"><a name="l00704"></a><span class="lineno"> 704</span> </div><div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  <span class="keyword">struct </span>destructor_op;</div><div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  <span class="keyword">struct </span>reduce_view_basic<destructor_op,View,true></div><div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  {</div><div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  <span class="keyword">using</span> type = gray8_view_t;</div><div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  };</div><div class="line"><a name="l00711"></a><span class="lineno"> 711</span> </div><div class="line"><a name="l00717"></a><span class="lineno"> 717</span> </div><div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  <span class="keyword">struct </span>any_type_get_dimensions;</div><div class="line"><a name="l00719"></a><span class="lineno"> 719</span> </div><div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  <span class="keyword">struct </span>reduce_view_basic<any_type_get_dimensions,View,true></div><div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  {</div><div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  <span class="keyword">using</span> type = gray8_view_t;</div><div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  };</div><div class="line"><a name="l00725"></a><span class="lineno"> 725</span> </div><div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Img></div><div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  <span class="keyword">struct </span>reduce_image_basic<any_type_get_dimensions,Img,true></div><div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  {</div><div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  <span class="keyword">using</span> type = gray8_image_t;</div><div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  };</div><div class="line"><a name="l00731"></a><span class="lineno"> 731</span> </div><div class="line"><a name="l00737"></a><span class="lineno"> 737</span> </div><div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  <span class="keyword">struct </span>any_type_get_num_channels;</div><div class="line"><a name="l00739"></a><span class="lineno"> 739</span> </div><div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  <span class="keyword">struct </span>reduce_view_basic<any_type_get_num_channels,View,true></div><div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  {</div><div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  <span class="keyword">using</span> color_space_t = <span class="keyword">typename</span> View::color_space_t::base;</div><div class="line"><a name="l00744"></a><span class="lineno"> 744</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> view_type<uint8_t,typename reduce_color_space<color_space_t>::type>::type;</div><div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  };</div><div class="line"><a name="l00746"></a><span class="lineno"> 746</span> </div><div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Img></div><div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  <span class="keyword">struct </span>reduce_image_basic<any_type_get_num_channels,Img,true></div><div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  {</div><div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  <span class="keyword">using</span> color_space_t = <span class="keyword">typename</span> Img::color_space_t::base;</div><div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> image_type<uint8_t,typename reduce_color_space<color_space_t>::type>::type;</div><div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  };</div><div class="line"><a name="l00753"></a><span class="lineno"> 753</span> </div><div class="line"><a name="l00759"></a><span class="lineno"> 759</span> </div><div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Sampler, <span class="keyword">typename</span> MapFn> <span class="keyword">struct </span>resample_pixels_fn;</div><div class="line"><a name="l00761"></a><span class="lineno"> 761</span> </div><div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> S, <span class="keyword">typename</span> M, <span class="keyword">typename</span> V, <span class="keywordtype">bool</span> IsBasic></div><div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  <span class="keyword">struct </span>reduce_view_basic<resample_pixels_fn<S,M>, V, IsBasic> : <span class="keyword">public</span> reduce_view_basic<copy_pixels_fn, V, IsBasic> {};</div><div class="line"><a name="l00764"></a><span class="lineno"> 764</span> </div><div class="line"><a name="l00765"></a><span class="lineno"> 765</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> S, <span class="keyword">typename</span> M, <span class="keyword">typename</span> V1, <span class="keyword">typename</span> V2, <span class="keywordtype">bool</span> IsBasic></div><div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  <span class="keyword">struct </span>reduce_views_basic<resample_pixels_fn<S,M>, V1, V2, IsBasic> : <span class="keyword">public</span> reduce_views_basic<copy_pixels_fn, V1, V2, IsBasic> {};</div><div class="line"><a name="l00767"></a><span class="lineno"> 767</span> </div><div class="line"><a name="l00774"></a><span class="lineno"> 774</span> </div><div class="line"><a name="l00775"></a><span class="lineno"> 775</span> </div><div class="line"><a name="l00776"></a><span class="lineno"> 776</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> CC> <span class="keyword">class </span>copy_and_convert_pixels_fn;</div><div class="line"><a name="l00777"></a><span class="lineno"> 777</span> </div><div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  <span class="comment">// the only thing for 1D reduce is making them all mutable...</span></div><div class="line"><a name="l00779"></a><span class="lineno"> 779</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> CC, <span class="keyword">typename</span> View, <span class="keywordtype">bool</span> IsBasic></div><div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  <span class="keyword">struct </span>reduce_view_basic<copy_and_convert_pixels_fn<CC>, View, IsBasic></div><div class="line"><a name="l00781"></a><span class="lineno"> 781</span>  : <span class="keyword">public</span> derived_view_type<View, use_default, use_default, use_default, use_default, mpl::true_> {</div><div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  };</div><div class="line"><a name="l00783"></a><span class="lineno"> 783</span> </div><div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  <span class="comment">// For 2D reduce, if they have the same channels and color spaces (i.e. the same pixels) then copy_and_convert is just copy.</span></div><div class="line"><a name="l00785"></a><span class="lineno"> 785</span>  <span class="comment">// In this case, reduce their common color space. In general make the first immutable and the second mutable</span></div><div class="line"><a name="l00786"></a><span class="lineno"> 786</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> CC, <span class="keyword">typename</span> V1, <span class="keyword">typename</span> V2, <span class="keywordtype">bool</span> AreBasic></div><div class="line"><a name="l00787"></a><span class="lineno"> 787</span>  <span class="keyword">struct </span>reduce_views_basic<copy_and_convert_pixels_fn<CC>, V1, V2, AreBasic></div><div class="line"><a name="l00788"></a><span class="lineno"> 788</span>  {</div><div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  <span class="keyword">using</span> Same = std::is_same<typename V1::pixel_t, typename V2::pixel_t>;</div><div class="line"><a name="l00790"></a><span class="lineno"> 790</span> </div><div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  <span class="keyword">using</span> CsR = reduce_color_space<typename V1::color_space_t::base>;</div><div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  <span class="keyword">using</span> Cs1 = <span class="keyword">typename</span> mpl::if_<Same, typename CsR::type, typename V1::color_space_t>::type;</div><div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  <span class="keyword">using</span> Cs2 = <span class="keyword">typename</span> mpl::if_<Same, typename CsR::type, typename V2::color_space_t>::type;</div><div class="line"><a name="l00794"></a><span class="lineno"> 794</span> </div><div class="line"><a name="l00795"></a><span class="lineno"> 795</span>  <span class="keyword">using</span> DV1 = <span class="keyword">typename</span> derived_view_type<V1, use_default, layout<Cs1, typename V1::channel_mapping_t>, use_default, use_default, mpl::false_>::type;</div><div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  <span class="keyword">using</span> DV2 = <span class="keyword">typename</span> derived_view_type<V2, use_default, layout<Cs2, typename V2::channel_mapping_t>, use_default, use_default, mpl::true_ >::type;</div><div class="line"><a name="l00797"></a><span class="lineno"> 797</span> </div><div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  <span class="keyword">using</span> type = std::pair<const DV1*, const DV2*>;</div><div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  };</div><div class="line"><a name="l00800"></a><span class="lineno"> 800</span> </div><div class="line"><a name="l00801"></a><span class="lineno"> 801</span> </div><div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  <span class="comment">//integral_image_generator</span></div><div class="line"><a name="l00803"></a><span class="lineno"> 803</span>  <span class="comment">//resize_clobber_image_fnobj</span></div><div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  <span class="comment">//image_default_construct_fnobj</span></div><div class="line"><a name="l00805"></a><span class="lineno"> 805</span>  <span class="comment">//fill_converted_pixels_fn</span></div><div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  <span class="comment">//std::bind(gil::detail::copy_pixels_fn(), std::placeholders::_1, dst)</span></div><div class="line"><a name="l00807"></a><span class="lineno"> 807</span>  <span class="comment">//std::bind(gil::detail::copy_pixels_fn(), src, std::placeholders::_1)</span></div><div class="line"><a name="l00808"></a><span class="lineno"> 808</span> </div><div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  <span class="comment">//std::bind(detail::copy_and_convert_pixels_fn(), std::placeholders::_1, dst)</span></div><div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  <span class="comment">//std::bind(detail::copy_and_convert_pixels_fn(), src, std::placeholders::_1)</span></div><div class="line"><a name="l00811"></a><span class="lineno"> 811</span>  <span class="comment">//gil::detail::fill_pixels_fn<Value>(val)</span></div><div class="line"><a name="l00812"></a><span class="lineno"> 812</span> </div><div class="line"><a name="l00813"></a><span class="lineno"> 813</span>  <span class="comment">//detail::copy_construct_in_place_fn<base_t></span></div><div class="line"><a name="l00814"></a><span class="lineno"> 814</span>  <span class="comment">//detail::equal_to_fn<typename variant<Types>::base_t></span></div><div class="line"><a name="l00815"></a><span class="lineno"> 815</span> </div><div class="line"><a name="l00816"></a><span class="lineno"> 816</span>  <span class="comment">//detail::any_image_get_view<typename any_image<Types>::view_t></span></div><div class="line"><a name="l00817"></a><span class="lineno"> 817</span>  <span class="comment">//detail::any_image_get_const_view<typename any_image<Types>::view_t></span></div><div class="line"><a name="l00818"></a><span class="lineno"> 818</span>  <span class="comment">//detail::flipped_up_down_view_fn<any_image_view<ViewTypes>></span></div><div class="line"><a name="l00819"></a><span class="lineno"> 819</span>  <span class="comment">//detail::flipped_left_right_view_fn<typename any_image_view<ViewTypes>::dynamic_step_t></span></div><div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  <span class="comment">//detail::tranposed_view_fn<typename any_image_view<ViewTypes>::dynamic_step_t></span></div><div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  <span class="comment">//detail::rotated90cw_view_fn<typename any_image_view<ViewTypes>::dynamic_step_t></span></div><div class="line"><a name="l00822"></a><span class="lineno"> 822</span>  <span class="comment">//detail::rotated90ccw_view_fn<typename any_image_view<ViewTypes>::dynamic_step_t></span></div><div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  <span class="comment">//detail::rotated180_view_fn<typename any_image_view<ViewTypes>::dynamic_step_t></span></div><div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  <span class="comment">//detail::subimage_view_fn<any_image_view<ViewTypes>></span></div><div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  <span class="comment">//detail::subsampled_view_fn<typename any_image_view<ViewTypes>::dynamic_step_t></span></div><div class="line"><a name="l00826"></a><span class="lineno"> 826</span>  <span class="comment">//detail::nth_channel_view_fn<typename nth_channel_view_type<any_image_view<ViewTypes>></span></div><div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  <span class="comment">//detail::color_converted_view_fn<DstP,typename color_convert_view_type<any_image_view<ViewTypes>, DstP>::type ></span></div><div class="line"><a name="l00828"></a><span class="lineno"> 828</span> }</div><div class="line"><a name="l00829"></a><span class="lineno"> 829</span> </div><div class="line"><a name="l00830"></a><span class="lineno"> 830</span> }} <span class="comment">// namespace boost::gil</span></div><div class="line"><a name="l00831"></a><span class="lineno"> 831</span> </div><div class="line"><a name="l00832"></a><span class="lineno"> 832</span> <span class="preprocessor">#endif // defined(BOOST_GIL_REDUCE_CODE_BLOAT)</span></div><div class="line"><a name="l00833"></a><span class="lineno"> 833</span> </div><div class="line"><a name="l00834"></a><span class="lineno"> 834</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="group___variant_html_ga82b387581cf015301eaed7798304e367"><div class="ttname"><a href="group___variant.html#ga82b387581cf015301eaed7798304e367">boost::gil::apply_operation</a></div><div class="ttdeci">BOOST_FORCEINLINE auto apply_operation(variant< Types > &arg, UnaryOp op)</div><div class="ttdoc">Invokes a generic mutable operation (represented as a unary function object) on a variant.</div><div class="ttdef"><b>Definition:</b> apply_operation.hpp:33</div></div>
- <div class="ttc" id="group___color_base_model_homogeneous_html_gae2eaf5eecbad94d7dc6432b8f759fba0"><div class="ttname"><a href="group___color_base_model_homogeneous.html#gae2eaf5eecbad94d7dc6432b8f759fba0">boost::gil::at_c</a></div><div class="ttdeci">auto at_c(detail::homogeneous_color_base< E, L, N > &p) -> typename std::add_lvalue_reference< E >::type</div><div class="ttdoc">Provides mutable access to the K-th element, in physical order.</div><div class="ttdef"><b>Definition:</b> color_base.hpp:597</div></div>
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