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<div class="title">MirrorPad.cpp</div>  </div>
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<a href="_mirror_pad_8cpp.xhtml">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">// Copyright © 2021 Arm Ltd and Contributors. All rights reserved.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">// SPDX-License-Identifier: MIT</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160; </div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_mirror_pad_8hpp.xhtml">MirrorPad.hpp</a>&quot;</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160; </div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_base_iterator_8hpp.xhtml">BaseIterator.hpp</a>&quot;</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_decoders_8hpp.xhtml">Decoders.hpp</a>&quot;</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_encoders_8hpp.xhtml">Encoders.hpp</a>&quot;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160; </div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="keyword">namespace</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;{</div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160; </div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">// Convert a linear index into n-dimensional coordinates.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment">// E.g. index = 2 returns [0, 0, 2].</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="keyword">inline</span> std::vector&lt;unsigned int&gt; IndexToCoord(<span class="keyword">const</span> <a class="code" href="classarmnn_1_1_tensor_shape.xhtml">armnn::TensorShape</a>&amp; shape, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> index)</div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;{</div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> numOfElements = shape.<a class="code" href="classarmnn_1_1_tensor_shape.xhtml#a8846406ac37fbd2204f0be16ee05d5b7">GetNumElements</a>();</div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160; </div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;    <a class="code" href="_assert_8hpp.xhtml#a91c4dfde57907d7698c7531785690a7f">ARMNN_ASSERT_MSG</a>(index &lt;= numOfElements, <span class="stringliteral">&quot;Index has to be in [0, num_elements]&quot;</span>);</div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;    <a class="code" href="_assert_8hpp.xhtml#a91c4dfde57907d7698c7531785690a7f">ARMNN_ASSERT_MSG</a>(numOfElements != 0, <span class="stringliteral">&quot;Cannot create coordinate from empty shape&quot;</span>);</div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160; </div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;    std::vector&lt;unsigned int&gt; coord(shape.<a class="code" href="classarmnn_1_1_tensor_shape.xhtml#a157e27d41e9f6b21f0d3c025fa47dc24">GetNumDimensions</a>());</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;    <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = 0; i &lt; shape.<a class="code" href="classarmnn_1_1_tensor_shape.xhtml#a157e27d41e9f6b21f0d3c025fa47dc24">GetNumDimensions</a>(); ++i)</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;    {</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;        numOfElements /= shape[i];</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;        coord[i] = index / numOfElements;</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;        index %= numOfElements;</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;    }</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160; </div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;    <span class="keywordflow">return</span> coord;</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;}</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160; </div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="comment">// Returns the index of a given coordinate.</span></div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="comment">// E.g. [0, 0, 2] returns 2.</span></div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> CoordToIndex(<span class="keyword">const</span> <a class="code" href="classarmnn_1_1_tensor_shape.xhtml">armnn::TensorShape</a>&amp; shape, <span class="keyword">const</span> std::vector&lt;unsigned int&gt;&amp; coord)</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;{</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;    <a class="code" href="_assert_8hpp.xhtml#a91c4dfde57907d7698c7531785690a7f">ARMNN_ASSERT_MSG</a>(shape.<a class="code" href="classarmnn_1_1_tensor_shape.xhtml#a157e27d41e9f6b21f0d3c025fa47dc24">GetNumDimensions</a>() != 0, <span class="stringliteral">&quot;Cannot get index from empty shape&quot;</span>);</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;    <a class="code" href="_assert_8hpp.xhtml#a91c4dfde57907d7698c7531785690a7f">ARMNN_ASSERT_MSG</a>(coord.size() != 0, <span class="stringliteral">&quot;Cannot get index of empty coordinate&quot;</span>);</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160; </div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> index    = 0;</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> dimSize  = 1;</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160; </div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = shape.<a class="code" href="classarmnn_1_1_tensor_shape.xhtml#a157e27d41e9f6b21f0d3c025fa47dc24">GetNumDimensions</a>(); i &gt; 0; --i)</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;    {</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;        index += coord[i - 1] * dimSize;</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;        dimSize *= shape[i - 1];</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;    }</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160; </div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;    <span class="keywordflow">return</span> index;</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;}</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160; </div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;} <span class="comment">// anonymous namespace</span></div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160; </div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacearmnn.xhtml">armnn</a></div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;{</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160; </div>
<div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="namespacearmnn.xhtml#a4e3efb65a77cf35dc5dc09e4f3646029">   59</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="namespacearmnn.xhtml#a4e3efb65a77cf35dc5dc09e4f3646029">MirrorPad</a>(<span class="keyword">const</span> <a class="code" href="classarmnn_1_1_tensor_info.xhtml">TensorInfo</a>&amp; inputInfo,</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;               <span class="keyword">const</span> <a class="code" href="classarmnn_1_1_tensor_info.xhtml">TensorInfo</a>&amp; outputInfo,</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;               <span class="keyword">const</span> <a class="code" href="classarmnn_1_1_i_tensor_handle.xhtml">ITensorHandle</a>* inputHandle,</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;               <a class="code" href="classarmnn_1_1_i_tensor_handle.xhtml">ITensorHandle</a>* outputHandle,</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;               <span class="keyword">const</span> <a class="code" href="structarmnn_1_1_pad_queue_descriptor.xhtml">PadQueueDescriptor</a>&amp; data)</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;{</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    <span class="keyword">auto</span> padList  = data.<a class="code" href="structarmnn_1_1_queue_descriptor_with_parameters.xhtml#aad91b9bbf7aa365d304febe79a3d1333">m_Parameters</a>.<a class="code" href="structarmnn_1_1_pad_descriptor.xhtml#a85f98c94e11f65a6b73f831735c040f3">m_PadList</a>;</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;    <a class="code" href="namespacearmnn.xhtml#a14d24d90ab4ba2956e92e27890ba4c91">PaddingMode</a> paddingMode = data.<a class="code" href="structarmnn_1_1_queue_descriptor_with_parameters.xhtml#aad91b9bbf7aa365d304febe79a3d1333">m_Parameters</a>.<a class="code" href="structarmnn_1_1_pad_descriptor.xhtml#a66f2c989f51ab6116de4380390250b69">m_PaddingMode</a>;</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160; </div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    <a class="code" href="classarmnn_1_1_tensor_shape.xhtml">TensorShape</a> outputShape = outputInfo.<a class="code" href="classarmnn_1_1_tensor_info.xhtml#a8b5d0f8a24e9d9238f412260a552acf8">GetShape</a>();</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;    <a class="code" href="classarmnn_1_1_tensor_shape.xhtml">TensorShape</a> inputShape  = inputInfo.<a class="code" href="classarmnn_1_1_tensor_info.xhtml#a8b5d0f8a24e9d9238f412260a552acf8">GetShape</a>();</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160; </div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> numOutputElements = outputInfo.<a class="code" href="classarmnn_1_1_tensor_info.xhtml#a8846406ac37fbd2204f0be16ee05d5b7">GetNumElements</a>();</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> numInputDimensions = inputShape.<a class="code" href="classarmnn_1_1_tensor_shape.xhtml#a157e27d41e9f6b21f0d3c025fa47dc24">GetNumDimensions</a>();</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    assert(numInputDimensions == outputShape.<a class="code" href="classarmnn_1_1_tensor_shape.xhtml#a157e27d41e9f6b21f0d3c025fa47dc24">GetNumDimensions</a>());</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160; </div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    <span class="comment">// If padding mode is Reflect then both paddings must be no greater than inputShape(i) - 1.</span></div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    <span class="comment">// If padding mode is Symmetric then both paddings must be no greater than inputShape(i).</span></div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> isReflect = <span class="keyword">static_cast&lt;</span><span class="keywordtype">unsigned</span> <span class="keywordtype">int</span><span class="keyword">&gt;</span>(paddingMode == <a class="code" href="namespacearmnn.xhtml#a14d24d90ab4ba2956e92e27890ba4c91a74de3e45e4491e956e8dc18d841d9b00">PaddingMode::Reflect</a>);</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = 0; i &lt; padList.size(); ++i)</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    {</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;        <span class="keywordflow">if</span>(padList.at(i).first &gt; (inputShape[i] - isReflect) ||</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;           padList.at(i).second &gt; (inputShape[i] - isReflect))</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;        {</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;            <span class="keywordflow">throw</span> <a class="code" href="classarmnn_1_1_invalid_argument_exception.xhtml">armnn::InvalidArgumentException</a>(<span class="stringliteral">&quot;Paddings must be less (Reflect) or &quot;</span></div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;                                                  <span class="stringliteral">&quot;equal (Symmetric) to the dimension size.&quot;</span>);</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;        }</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    }</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160; </div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    <span class="keyword">auto</span> inputData = MakeDecoder&lt;float&gt;(inputInfo, inputHandle-&gt;<a class="code" href="classarmnn_1_1_i_tensor_handle.xhtml#a9afbc055a017adf1bc38ee137bca6e90">Map</a>());</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    <span class="keyword">auto</span> outData   = MakeEncoder&lt;float&gt;(outputInfo, outputHandle-&gt;<a class="code" href="classarmnn_1_1_i_tensor_handle.xhtml#a9afbc055a017adf1bc38ee137bca6e90">Map</a>());</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160; </div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    <a class="code" href="classarmnn_1_1_decoder.xhtml">Decoder&lt;float&gt;</a>&amp; input  = *inputData;</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    <a class="code" href="classarmnn_1_1_encoder.xhtml">Encoder&lt;float&gt;</a>&amp; output = *outData;</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160; </div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> idx = 0; idx &lt; numOutputElements; ++idx)</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;    {</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;        <span class="comment">// Get the coordinates of the current index in vector form. E.g inx 1 = [0, 0, 0, 1 ]</span></div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;        <span class="keyword">const</span> std::vector&lt;unsigned int&gt; coord = IndexToCoord(outputShape, idx);</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160; </div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;        std::vector&lt;unsigned int&gt; dimensions;</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;        std::vector&lt;unsigned int&gt; coords;</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160; </div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;        <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = 0; i &lt; numInputDimensions; ++i)</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;        {</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;            dimensions.emplace_back(i);</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;            coords.emplace_back(coord[i]);</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;        }</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160; </div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;        <span class="keyword">auto</span> isInPadding = [&amp;](<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i)</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;        {</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;            <span class="keywordflow">return</span> (coords[i] &lt; padList[i].first || coords[i] &gt; inputShape[i] + padList[i].first - 1);</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;        };</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160; </div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;        <span class="keyword">auto</span> getReflectIndex = [&amp;](<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i) -&gt; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;        {</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;            <span class="keywordflow">if</span>(isInPadding(i))</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;            {</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;                <span class="keywordflow">if</span>(coords[i] &lt; padList[i].first)</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;                {</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;                    <span class="keywordflow">return</span> padList[i].first - coords[i];</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;                }</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;                <span class="keywordflow">else</span></div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;                {</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;                    <span class="keywordflow">return</span> 2 * inputShape[i] + padList[i].first - 2 - coords[i];</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;                }</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;            }</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;            <span class="keywordflow">return</span> coords[i] - padList[i].first;</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;        };</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160; </div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;        <span class="keyword">auto</span> getSymmetricIndex = [&amp;](<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i) -&gt; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;        {</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;            <span class="keywordflow">if</span>(isInPadding(i))</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;            {</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;                <span class="keywordflow">if</span>(coords[i] &lt; padList[i].first)</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;                {</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;                    <span class="keywordflow">return</span> padList[i].first - coords[i] - 1;</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;                }</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;                <span class="keywordflow">else</span></div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;                {</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;                    <span class="keywordflow">return</span> 2 * inputShape[i] + padList[i].first - 1 - coords[i];</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;                }</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;            }</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;            <span class="keywordflow">return</span> coords[i] - padList[i].first;</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;        };</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160; </div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;        <span class="comment">// Location of the value in the input tensor to use in the output.</span></div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;        std::vector&lt;unsigned int&gt; coordOfInput;</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160; </div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;        <span class="comment">// any_of works as a loop here to check if any of the dimensions are in the padding.</span></div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;        <span class="comment">// If dimensions is in the padding area, then create the coordinates of the location in the</span></div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;        <span class="comment">// input tensor to use in the output.</span></div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;        <span class="comment">// E.g.</span></div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;        <span class="comment">// Input tensor = [ 1, 2, 3 ], Rank = 1.</span></div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;        <span class="comment">// Output tensor = [ 2, 1, 2, 3, 1 ] if Reflect or [ 1, 1, 2, 3, 3 ] if Symmetric with a padding of (1, 1).</span></div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;        <span class="comment">// So it will either return [ 1 ] or [ 0 ] which is used to set the first value in the output tensor and so on.</span></div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;        <span class="keywordflow">if</span>(std::any_of(dimensions.begin(), dimensions.end(), isInPadding))</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;        {</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;            <span class="keywordflow">switch</span>(paddingMode)</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;            {</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;                <span class="keywordflow">case</span> <a class="code" href="namespacearmnn.xhtml#a14d24d90ab4ba2956e92e27890ba4c91a74de3e45e4491e956e8dc18d841d9b00">PaddingMode::Reflect</a>:</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;                {</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;                    <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = 0; i &lt; numInputDimensions; ++i)</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;                    {</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;                        coordOfInput.emplace_back(getReflectIndex(i));</div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;                    }</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;                    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;                }</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;                <span class="keywordflow">case</span> <a class="code" href="namespacearmnn.xhtml#a14d24d90ab4ba2956e92e27890ba4c91af334649ef5e5d0ffe200751d07012626">PaddingMode::Symmetric</a>:</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;                {</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;                    <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = 0; i &lt; numInputDimensions; ++i)</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;                    {</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;                        coordOfInput.emplace_back(getSymmetricIndex(i));</div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;                    }</div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;                    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;                }</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;                <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;                    <span class="keywordflow">throw</span> <a class="code" href="classarmnn_1_1_invalid_argument_exception.xhtml">InvalidArgumentException</a>(<span class="stringliteral">&quot;Padding mode not supported.&quot;</span>);</div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;                    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;            }</div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;        }</div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;        <span class="keywordflow">else</span></div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;        {</div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;            <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = 0; i &lt; numInputDimensions; ++i)</div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;            {</div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;                coordOfInput.emplace_back(coord[i] - padList[i].first);</div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;            }</div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;        }</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160; </div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;        <span class="comment">// Set output value using the coordinate of the input value to use.</span></div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> indexOfInput = CoordToIndex(inputShape, coordOfInput);</div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160; </div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;        input[indexOfInput];</div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;        <span class="keyword">auto</span> inputValue = input.<a class="code" href="classarmnn_1_1_decoder.xhtml#ac729108381e2340bea12877971713ecb">Get</a>();</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160; </div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;        output[idx];</div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;        output.<a class="code" href="classarmnn_1_1_encoder.xhtml#ae3b62b846a9c239f332830b9e36030eb">Set</a>(inputValue);</div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;    }</div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;}</div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160; </div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;} <span class="comment">//namespace armnn</span></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="astructarmnn_1_1_pad_queue_descriptor_xhtml"><div class="ttname"><a href="structarmnn_1_1_pad_queue_descriptor.xhtml">armnn::PadQueueDescriptor</a></div><div class="ttdef"><b>Definition:</b> <a href="_workload_data_8hpp_source.xhtml#l00289">WorkloadData.hpp:289</a></div></div>
<div class="ttc" id="aclassarmnn_1_1_tensor_shape_xhtml_a8846406ac37fbd2204f0be16ee05d5b7"><div class="ttname"><a href="classarmnn_1_1_tensor_shape.xhtml#a8846406ac37fbd2204f0be16ee05d5b7">armnn::TensorShape::GetNumElements</a></div><div class="ttdeci">unsigned int GetNumElements() const</div><div class="ttdoc">Function that calculates the tensor elements by multiplying all dimension size which are Specified.</div><div class="ttdef"><b>Definition:</b> <a href="_tensor_8cpp_source.xhtml#l00181">Tensor.cpp:181</a></div></div>
<div class="ttc" id="aclassarmnn_1_1_encoder_xhtml"><div class="ttname"><a href="classarmnn_1_1_encoder.xhtml">armnn::Encoder&lt; float &gt;</a></div></div>
<div class="ttc" id="a_base_iterator_8hpp_xhtml"><div class="ttname"><a href="_base_iterator_8hpp.xhtml">BaseIterator.hpp</a></div></div>
<div class="ttc" id="anamespacearmnn_xhtml_a4e3efb65a77cf35dc5dc09e4f3646029"><div class="ttname"><a href="namespacearmnn.xhtml#a4e3efb65a77cf35dc5dc09e4f3646029">armnn::MirrorPad</a></div><div class="ttdeci">void MirrorPad(const TensorInfo &amp;inputInfo, const TensorInfo &amp;outputInfo, const ITensorHandle *inputHandle, ITensorHandle *outputHandle, const PadQueueDescriptor &amp;data)</div><div class="ttdef"><b>Definition:</b> <a href="_mirror_pad_8cpp_source.xhtml#l00059">MirrorPad.cpp:59</a></div></div>
<div class="ttc" id="anamespacearmnn_xhtml"><div class="ttname"><a href="namespacearmnn.xhtml">armnn</a></div><div class="ttdoc">Copyright (c) 2021 ARM Limited and Contributors.</div><div class="ttdef"><b>Definition:</b> <a href="01__00__quick__start_8dox_source.xhtml#l00006">01_00_quick_start.dox:6</a></div></div>
<div class="ttc" id="aclassarmnn_1_1_i_tensor_handle_xhtml"><div class="ttname"><a href="classarmnn_1_1_i_tensor_handle.xhtml">armnn::ITensorHandle</a></div><div class="ttdef"><b>Definition:</b> <a href="include_2armnn_2backends_2_i_tensor_handle_8hpp_source.xhtml#l00015">ITensorHandle.hpp:15</a></div></div>
<div class="ttc" id="aclassarmnn_1_1_tensor_shape_xhtml"><div class="ttname"><a href="classarmnn_1_1_tensor_shape.xhtml">armnn::TensorShape</a></div><div class="ttdef"><b>Definition:</b> <a href="_tensor_8hpp_source.xhtml#l00020">Tensor.hpp:20</a></div></div>
<div class="ttc" id="astructarmnn_1_1_pad_descriptor_xhtml_a66f2c989f51ab6116de4380390250b69"><div class="ttname"><a href="structarmnn_1_1_pad_descriptor.xhtml#a66f2c989f51ab6116de4380390250b69">armnn::PadDescriptor::m_PaddingMode</a></div><div class="ttdeci">PaddingMode m_PaddingMode</div><div class="ttdoc">Specifies the Padding mode (Constant, Reflect or Symmetric)</div><div class="ttdef"><b>Definition:</b> <a href="_descriptors_8hpp_source.xhtml#l01191">Descriptors.hpp:1191</a></div></div>
<div class="ttc" id="aclassarmnn_1_1_i_tensor_handle_xhtml_a9afbc055a017adf1bc38ee137bca6e90"><div class="ttname"><a href="classarmnn_1_1_i_tensor_handle.xhtml#a9afbc055a017adf1bc38ee137bca6e90">armnn::ITensorHandle::Map</a></div><div class="ttdeci">virtual const void * Map(bool blocking=true) const =0</div><div class="ttdoc">Map the tensor data for access.</div></div>
<div class="ttc" id="astructarmnn_1_1_pad_descriptor_xhtml_a85f98c94e11f65a6b73f831735c040f3"><div class="ttname"><a href="structarmnn_1_1_pad_descriptor.xhtml#a85f98c94e11f65a6b73f831735c040f3">armnn::PadDescriptor::m_PadList</a></div><div class="ttdeci">std::vector&lt; std::pair&lt; unsigned int, unsigned int &gt; &gt; m_PadList</div><div class="ttdoc">Specifies the padding for input dimension.</div><div class="ttdef"><b>Definition:</b> <a href="_descriptors_8hpp_source.xhtml#l01185">Descriptors.hpp:1185</a></div></div>
<div class="ttc" id="aclassarmnn_1_1_tensor_info_xhtml_a8846406ac37fbd2204f0be16ee05d5b7"><div class="ttname"><a href="classarmnn_1_1_tensor_info.xhtml#a8846406ac37fbd2204f0be16ee05d5b7">armnn::TensorInfo::GetNumElements</a></div><div class="ttdeci">unsigned int GetNumElements() const</div><div class="ttdef"><b>Definition:</b> <a href="_tensor_8hpp_source.xhtml#l00196">Tensor.hpp:196</a></div></div>
<div class="ttc" id="a_encoders_8hpp_xhtml"><div class="ttname"><a href="_encoders_8hpp.xhtml">Encoders.hpp</a></div></div>
<div class="ttc" id="aclassarmnn_1_1_decoder_xhtml"><div class="ttname"><a href="classarmnn_1_1_decoder.xhtml">armnn::Decoder&lt; float &gt;</a></div></div>
<div class="ttc" id="aclassarmnn_1_1_tensor_info_xhtml"><div class="ttname"><a href="classarmnn_1_1_tensor_info.xhtml">armnn::TensorInfo</a></div><div class="ttdef"><b>Definition:</b> <a href="_tensor_8hpp_source.xhtml#l00152">Tensor.hpp:152</a></div></div>
<div class="ttc" id="anamespacearmnn_xhtml_a14d24d90ab4ba2956e92e27890ba4c91"><div class="ttname"><a href="namespacearmnn.xhtml#a14d24d90ab4ba2956e92e27890ba4c91">armnn::PaddingMode</a></div><div class="ttdeci">PaddingMode</div><div class="ttdoc">The padding mode controls whether the padding should be filled with constant values (Constant),...</div><div class="ttdef"><b>Definition:</b> <a href="_types_8hpp_source.xhtml#l00197">Types.hpp:197</a></div></div>
<div class="ttc" id="aclassarmnn_1_1_tensor_info_xhtml_a8b5d0f8a24e9d9238f412260a552acf8"><div class="ttname"><a href="classarmnn_1_1_tensor_info.xhtml#a8b5d0f8a24e9d9238f412260a552acf8">armnn::TensorInfo::GetShape</a></div><div class="ttdeci">const TensorShape &amp; GetShape() const</div><div class="ttdef"><b>Definition:</b> <a href="_tensor_8hpp_source.xhtml#l00191">Tensor.hpp:191</a></div></div>
<div class="ttc" id="a_assert_8hpp_xhtml_a91c4dfde57907d7698c7531785690a7f"><div class="ttname"><a href="_assert_8hpp.xhtml#a91c4dfde57907d7698c7531785690a7f">ARMNN_ASSERT_MSG</a></div><div class="ttdeci">#define ARMNN_ASSERT_MSG(COND, MSG)</div><div class="ttdef"><b>Definition:</b> <a href="_assert_8hpp_source.xhtml#l00015">Assert.hpp:15</a></div></div>
<div class="ttc" id="anamespacearmnn_xhtml_a14d24d90ab4ba2956e92e27890ba4c91a74de3e45e4491e956e8dc18d841d9b00"><div class="ttname"><a href="namespacearmnn.xhtml#a14d24d90ab4ba2956e92e27890ba4c91a74de3e45e4491e956e8dc18d841d9b00">armnn::PaddingMode::Reflect</a></div><div class="ttdeci">@ Reflect</div></div>
<div class="ttc" id="aclassarmnn_1_1_encoder_xhtml_ae3b62b846a9c239f332830b9e36030eb"><div class="ttname"><a href="classarmnn_1_1_encoder.xhtml#ae3b62b846a9c239f332830b9e36030eb">armnn::Encoder::Set</a></div><div class="ttdeci">virtual void Set(IType right)=0</div></div>
<div class="ttc" id="astructarmnn_1_1_queue_descriptor_with_parameters_xhtml_aad91b9bbf7aa365d304febe79a3d1333"><div class="ttname"><a href="structarmnn_1_1_queue_descriptor_with_parameters.xhtml#aad91b9bbf7aa365d304febe79a3d1333">armnn::QueueDescriptorWithParameters::m_Parameters</a></div><div class="ttdeci">LayerDescriptor m_Parameters</div><div class="ttdef"><b>Definition:</b> <a href="_workload_data_8hpp_source.xhtml#l00066">WorkloadData.hpp:66</a></div></div>
<div class="ttc" id="aclassarmnn_1_1_tensor_shape_xhtml_a157e27d41e9f6b21f0d3c025fa47dc24"><div class="ttname"><a href="classarmnn_1_1_tensor_shape.xhtml#a157e27d41e9f6b21f0d3c025fa47dc24">armnn::TensorShape::GetNumDimensions</a></div><div class="ttdeci">unsigned int GetNumDimensions() const</div><div class="ttdoc">Function that returns the tensor rank.</div><div class="ttdef"><b>Definition:</b> <a href="_tensor_8cpp_source.xhtml#l00174">Tensor.cpp:174</a></div></div>
<div class="ttc" id="anamespacearmnn_xhtml_a14d24d90ab4ba2956e92e27890ba4c91af334649ef5e5d0ffe200751d07012626"><div class="ttname"><a href="namespacearmnn.xhtml#a14d24d90ab4ba2956e92e27890ba4c91af334649ef5e5d0ffe200751d07012626">armnn::PaddingMode::Symmetric</a></div><div class="ttdeci">@ Symmetric</div></div>
<div class="ttc" id="a_decoders_8hpp_xhtml"><div class="ttname"><a href="_decoders_8hpp.xhtml">Decoders.hpp</a></div></div>
<div class="ttc" id="aclassarmnn_1_1_decoder_xhtml_ac729108381e2340bea12877971713ecb"><div class="ttname"><a href="classarmnn_1_1_decoder.xhtml#ac729108381e2340bea12877971713ecb">armnn::Decoder::Get</a></div><div class="ttdeci">virtual IType Get() const =0</div></div>
<div class="ttc" id="aclassarmnn_1_1_invalid_argument_exception_xhtml"><div class="ttname"><a href="classarmnn_1_1_invalid_argument_exception.xhtml">armnn::InvalidArgumentException</a></div><div class="ttdef"><b>Definition:</b> <a href="_exceptions_8hpp_source.xhtml#l00080">Exceptions.hpp:80</a></div></div>
<div class="ttc" id="a_mirror_pad_8hpp_xhtml"><div class="ttname"><a href="_mirror_pad_8hpp.xhtml">MirrorPad.hpp</a></div></div>
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