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 116 <div class="header">
 117   <div class="summary">
 118 <a href="#pub-methods">Public Member Functions</a>  </div>
 119   <div class="headertitle">
 120 <div class="title">PPMLoader Class Reference</div>  </div>
 121 </div><!--header-->
 122 <div class="contents">
 123
 124 <p>Class to load the content of a PPM file into an <a class="el" href="struct_image.xhtml" title="Structure to hold Image information. ">Image</a>.
 125  <a href="classtest__helpers_1_1_p_p_m_loader.xhtml#details">More...</a></p>
 126
 127 <p><code>#include &lt;<a class="el" href="test__helpers_2_utils_8h_source.xhtml">Utils.h</a>&gt;</code></p>
 128 <table class="memberdecls">
 129 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
 130 Public Member Functions</h2></td></tr>
 131 <tr class="memitem:a49afa04c8a5fd9ead48e07440b37294c"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classtest__helpers_1_1_p_p_m_loader.xhtml#a49afa04c8a5fd9ead48e07440b37294c">PPMLoader</a> ()</td></tr>
 132 <tr class="separator:a49afa04c8a5fd9ead48e07440b37294c"><td class="memSeparator" colspan="2">&#160;</td></tr>
 133 <tr class="memitem:a36e58f3e64f3851ebac7a9556b4704ed"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classtest__helpers_1_1_p_p_m_loader.xhtml#a36e58f3e64f3851ebac7a9556b4704ed">open</a> (const std::string &amp;ppm_filename)</td></tr>
 134 <tr class="memdesc:a36e58f3e64f3851ebac7a9556b4704ed"><td class="mdescLeft">&#160;</td><td class="mdescRight">Open a PPM file and reads its metadata (Width, height)  <a href="#a36e58f3e64f3851ebac7a9556b4704ed">More...</a><br /></td></tr>
 135 <tr class="separator:a36e58f3e64f3851ebac7a9556b4704ed"><td class="memSeparator" colspan="2">&#160;</td></tr>
 136 <tr class="memitem:a2f57f54d8c03b615bb31eee091d8a88a"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classtest__helpers_1_1_p_p_m_loader.xhtml#a2f57f54d8c03b615bb31eee091d8a88a">is_open</a> ()</td></tr>
 137 <tr class="memdesc:a2f57f54d8c03b615bb31eee091d8a88a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return true if a PPM file is currently open.  <a href="#a2f57f54d8c03b615bb31eee091d8a88a">More...</a><br /></td></tr>
 138 <tr class="separator:a2f57f54d8c03b615bb31eee091d8a88a"><td class="memSeparator" colspan="2">&#160;</td></tr>
 139 <tr class="memitem:a283b961e6ca7b117b106c8710c7cfe81"><td class="memTemplParams" colspan="2">template&lt;typename T &gt; </td></tr>
 140 <tr class="memitem:a283b961e6ca7b117b106c8710c7cfe81"><td class="memTemplItemLeft" align="right" valign="top">void&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classtest__helpers_1_1_p_p_m_loader.xhtml#a283b961e6ca7b117b106c8710c7cfe81">init_image</a> (T &amp;image, <a class="el" href="namespacearm__compute.xhtml#ab4e88c89b3b7ea1735996cc4def22d58">Format</a> format)</td></tr>
 141 <tr class="memdesc:a283b961e6ca7b117b106c8710c7cfe81"><td class="mdescLeft">&#160;</td><td class="mdescRight">Initialise an image's metadata with the dimensions of the PPM file currently open.  <a href="#a283b961e6ca7b117b106c8710c7cfe81">More...</a><br /></td></tr>
 142 <tr class="separator:a283b961e6ca7b117b106c8710c7cfe81"><td class="memSeparator" colspan="2">&#160;</td></tr>
 143 <tr class="memitem:a1672610b872bef30d0dc2333a0ffc402"><td class="memTemplParams" colspan="2">template&lt;typename T &gt; </td></tr>
 144 <tr class="memitem:a1672610b872bef30d0dc2333a0ffc402"><td class="memTemplItemLeft" align="right" valign="top">void&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classtest__helpers_1_1_p_p_m_loader.xhtml#a1672610b872bef30d0dc2333a0ffc402">fill_image</a> (T &amp;image)</td></tr>
 145 <tr class="memdesc:a1672610b872bef30d0dc2333a0ffc402"><td class="mdescLeft">&#160;</td><td class="mdescRight">Fill an image with the content of the currently open PPM file.  <a href="#a1672610b872bef30d0dc2333a0ffc402">More...</a><br /></td></tr>
 146 <tr class="separator:a1672610b872bef30d0dc2333a0ffc402"><td class="memSeparator" colspan="2">&#160;</td></tr>
 147 </table>
 148 <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
 149 <div class="textblock"><p>Class to load the content of a PPM file into an <a class="el" href="struct_image.xhtml" title="Structure to hold Image information. ">Image</a>. </p>
 150
 151 <p>Definition at line <a class="el" href="test__helpers_2_utils_8h_source.xhtml#l00083">83</a> of file <a class="el" href="test__helpers_2_utils_8h_source.xhtml">Utils.h</a>.</p>
 152 </div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
 153 <a class="anchor" id="a49afa04c8a5fd9ead48e07440b37294c"></a>
 154 <div class="memitem">
 155 <div class="memproto">
 156 <table class="mlabels">
 157   <tr>
 158   <td class="mlabels-left">
 159       <table class="memname">
 160         <tr>
 161           <td class="memname"><a class="el" href="classtest__helpers_1_1_p_p_m_loader.xhtml">PPMLoader</a> </td>
 162           <td>(</td>
 163           <td class="paramname"></td><td>)</td>
 164           <td></td>
 165         </tr>
 166       </table>
 167   </td>
 168   <td class="mlabels-right">
 169 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 170   </tr>
 171 </table>
 172 </div><div class="memdoc">
 173
 174 <p>Definition at line <a class="el" href="test__helpers_2_utils_8h_source.xhtml#l00086">86</a> of file <a class="el" href="test__helpers_2_utils_8h_source.xhtml">Utils.h</a>.</p>
 175 <div class="fragment"><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;        : _fs(), _width(0), _height(0)</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    {</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    }</div></div><!-- fragment -->
 176 </div>
 177 </div>
 178 <h2 class="groupheader">Member Function Documentation</h2>
 179 <a class="anchor" id="a1672610b872bef30d0dc2333a0ffc402"></a>
 180 <div class="memitem">
 181 <div class="memproto">
 182 <table class="mlabels">
 183   <tr>
 184   <td class="mlabels-left">
 185       <table class="memname">
 186         <tr>
 187           <td class="memname">void fill_image </td>
 188           <td>(</td>
 189           <td class="paramtype">T &amp;&#160;</td>
 190           <td class="paramname"><em>image</em></td><td>)</td>
 191           <td></td>
 192         </tr>
 193       </table>
 194   </td>
 195   <td class="mlabels-right">
 196 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 197   </tr>
 198 </table>
 199 </div><div class="memdoc">
 200
 201 <p>Fill an image with the content of the currently open PPM file. </p>
 202 <dl class="section note"><dt>Note</dt><dd>If the image is a CLImage, the function maps and unmaps the image</dd></dl>
 203 <dl class="params"><dt>Parameters</dt><dd>
 204   <table class="params">
 205     <tr><td class="paramdir">[in,out]</td><td class="paramname">image</td><td><a class="el" href="struct_image.xhtml" title="Structure to hold Image information. ">Image</a> to fill (Must be allocated, and of matching dimensions with the opened PPM). </td></tr>
 206   </table>
 207   </dd>
 208 </dl>
 209
 210 <p>Definition at line <a class="el" href="test__helpers_2_utils_8h_source.xhtml#l00142">142</a> of file <a class="el" href="test__helpers_2_utils_8h_source.xhtml">Utils.h</a>.</p>
 211
 212 <p>References <a class="el" href="_error_8h_source.xhtml#l00031">ARM_COMPUTE_ERROR</a>, <a class="el" href="_error_8h_source.xhtml#l00100">ARM_COMPUTE_ERROR_ON</a>, <a class="el" href="_validate_8h_source.xhtml#l00215">ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN</a>, <a class="el" href="_error_8h_source.xhtml#l00091">ARM_COMPUTE_ERROR_ON_MSG</a>, <a class="el" href="_error_8h_source.xhtml#l00049">ARM_COMPUTE_UNUSED</a>, <a class="el" href="_window_8h_source.xhtml#l00043">Window::DimX</a>, <a class="el" href="_window_8h_source.xhtml#l00045">Window::DimY</a>, <a class="el" href="namespacearm__compute.xhtml#a78fd1c0056e9add7ab01b8e118c0038d">arm_compute::execute_window_loop()</a>, <a class="el" href="classarm__compute_1_1_iterator.xhtml#a2f0d6383162e1af2df323c456a9335d3">Iterator::ptr()</a>, <a class="el" href="namespacearm__compute.xhtml#ab4e88c89b3b7ea1735996cc4def22d58a30ff380a3be74628024063a99fba10f0">arm_compute::RGB888</a>, <a class="el" href="_window_8inl_source.xhtml#l00040">Window::set()</a>, and <a class="el" href="namespacearm__compute.xhtml#ab4e88c89b3b7ea1735996cc4def22d58a6669348b484e3008dca2bfa8e85e40b5">arm_compute::U8</a>.</p>
 213
 214 <p>Referenced by <a class="el" href="cl__convolution_8cpp_source.xhtml#l00053">main_cl_convolution()</a>, <a class="el" href="cl__events_8cpp_source.xhtml#l00033">main_cl_events()</a>, <a class="el" href="neon__convolution_8cpp_source.xhtml#l00052">main_neon_convolution()</a>, <a class="el" href="neon__scale_8cpp_source.xhtml#l00032">main_neon_scale()</a>, and <a class="el" href="neoncl__scale__median__gaussian_8cpp_source.xhtml#l00039">main_neoncl_scale_median_gaussian()</a>.</p>
 215 <div class="fragment"><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;        <a class="code" href="_error_8h.xhtml#a54a6080c9f4df1f908e57a9bbb46f5da">ARM_COMPUTE_ERROR_ON</a>(!<a class="code" href="classtest__helpers_1_1_p_p_m_loader.xhtml#a2f57f54d8c03b615bb31eee091d8a88a">is_open</a>());</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;        <a class="code" href="_error_8h.xhtml#a54a6080c9f4df1f908e57a9bbb46f5da">ARM_COMPUTE_ERROR_ON</a>(image.info()-&gt;dimension(0) != _width || image.info()-&gt;dimension(1) != _height);</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;        <a class="code" href="_validate_8h.xhtml#a0d34a8aa07600727e4e5034c7cdad47d">ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN</a>(&amp;image, Format::U8, Format::RGB888);</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;        <span class="keywordflow">try</span></div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;        {</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;<span class="preprocessor">#ifdef ARM_COMPUTE_CL</span></div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;            <span class="comment">// Map buffer if creating a CLTensor</span></div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;            <span class="keywordflow">if</span>(std::is_same&lt;<span class="keyword">typename</span> std::decay&lt;T&gt;::type, <a class="code" href="classarm__compute_1_1_c_l_tensor.xhtml">CLImage</a>&gt;::value)</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;            {</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;                image.map();</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;            }</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;            <span class="comment">// Check if the file is large enough to fill the image</span></div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">size_t</span> current_position = _fs.tellg();</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;            _fs.seekg(0, std::ios_base::end);</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">size_t</span> end_position = _fs.tellg();</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;            _fs.seekg(current_position, std::ios_base::beg);</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;            <a class="code" href="_error_8h.xhtml#a5bbdcf574d3f5e412fa6a1117911e67b">ARM_COMPUTE_ERROR_ON_MSG</a>((end_position - current_position) &lt; image.info()-&gt;tensor_shape().total_size() * image.info()-&gt;element_size(),</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;                                     <span class="stringliteral">&quot;Not enough data in file&quot;</span>);</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;            <a class="code" href="_error_8h.xhtml#a4103adbb45806b2f2002d44b91d0d206">ARM_COMPUTE_UNUSED</a>(end_position);</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;            <span class="keywordflow">switch</span>(image.info()-&gt;format())</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;            {</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;                <span class="keywordflow">case</span> Format::U8:</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;                {</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;                    <a class="code" href="classarm__compute_1_1_window.xhtml">Window</a> window;</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;                    window.<a class="code" href="classarm__compute_1_1_window.xhtml#acd3d2bba51cb84d34dd7656ad2375a6e">set</a>(Window::DimX, <a class="code" href="classarm__compute_1_1_window_1_1_dimension.xhtml">Window::Dimension</a>(0, _width, 1));</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;                    window.<a class="code" href="classarm__compute_1_1_window.xhtml#acd3d2bba51cb84d34dd7656ad2375a6e">set</a>(Window::DimY, <a class="code" href="classarm__compute_1_1_window_1_1_dimension.xhtml">Window::Dimension</a>(0, _height, 1));</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;                    <a class="code" href="classarm__compute_1_1_iterator.xhtml">Iterator</a> out(&amp;image, window);</div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;                    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> red   = 0;</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;                    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> green = 0;</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;                    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> blue  = 0;</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;                    <a class="code" href="namespacearm__compute.xhtml#a78fd1c0056e9add7ab01b8e118c0038d">execute_window_loop</a>(window, [&amp;](<span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_coordinates.xhtml">Coordinates</a> &amp; <span class="keywordtype">id</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;                        red   = _fs.get();</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;                        green = _fs.get();</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;                        blue  = _fs.get();</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;                        *out.ptr() = 0.2126f * red + 0.7152f * green + 0.0722f * blue;</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;                    out);</div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;                    <span class="keywordflow">break</span>;</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;                }</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;                <span class="keywordflow">case</span> Format::RGB888:</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;                    <a class="code" href="classarm__compute_1_1_window.xhtml">Window</a> window;</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;                    window.<a class="code" href="classarm__compute_1_1_window.xhtml#acd3d2bba51cb84d34dd7656ad2375a6e">set</a>(Window::DimX, <a class="code" href="classarm__compute_1_1_window_1_1_dimension.xhtml">Window::Dimension</a>(0, _width, _width));</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;                    window.<a class="code" href="classarm__compute_1_1_window.xhtml#acd3d2bba51cb84d34dd7656ad2375a6e">set</a>(Window::DimY, <a class="code" href="classarm__compute_1_1_window_1_1_dimension.xhtml">Window::Dimension</a>(0, _height, 1));</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;                    <a class="code" href="classarm__compute_1_1_iterator.xhtml">Iterator</a> out(&amp;image, window);</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;                    <a class="code" href="namespacearm__compute.xhtml#a78fd1c0056e9add7ab01b8e118c0038d">execute_window_loop</a>(window, [&amp;](<span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_coordinates.xhtml">Coordinates</a> &amp; <span class="keywordtype">id</span>)</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;                    {</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;                        _fs.read(reinterpret_cast&lt;std::fstream::char_type *&gt;(out.ptr()), _width * image.info()-&gt;element_size());</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;                    },</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;                    out);</div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;                    <span class="keywordflow">break</span>;</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;                }</div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;                <span class="keywordflow">default</span>:</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;                    <a class="code" href="_error_8h.xhtml#a05b19c75afe9c24200a62b9724734bbd">ARM_COMPUTE_ERROR</a>(<span class="stringliteral">&quot;Unsupported format&quot;</span>);</div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;            }</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;<span class="preprocessor">#ifdef ARM_COMPUTE_CL</span></div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;            <span class="comment">// Unmap buffer if creating a CLTensor</span></div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;            <span class="keywordflow">if</span>(std::is_same&lt;<span class="keyword">typename</span> std::decay&lt;T&gt;::type, <a class="code" href="classarm__compute_1_1_c_l_tensor.xhtml">CLTensor</a>&gt;::value)</div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;            {</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;                image.unmap();</div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;            }</div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;        }</div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;        <span class="keywordflow">catch</span>(<span class="keyword">const</span> std::ifstream::failure &amp;e)</div><div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;        {</div><div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;            <a class="code" href="_error_8h.xhtml#a05b19c75afe9c24200a62b9724734bbd">ARM_COMPUTE_ERROR</a>(<span class="stringliteral">&quot;Loading PPM file: %s&quot;</span>, e.what());</div><div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;        }</div><div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;    }</div><div class="ttc" id="_error_8h_xhtml_a05b19c75afe9c24200a62b9724734bbd"><div class="ttname"><a href="_error_8h.xhtml#a05b19c75afe9c24200a62b9724734bbd">ARM_COMPUTE_ERROR</a></div><div class="ttdeci">#define ARM_COMPUTE_ERROR(...)</div><div class="ttdoc">Print the given message then throw an std::runtime_error. </div><div class="ttdef"><b>Definition:</b> <a href="_error_8h_source.xhtml#l00031">Error.h:31</a></div></div>
 216 <div class="ttc" id="classtest__helpers_1_1_p_p_m_loader_xhtml_a2f57f54d8c03b615bb31eee091d8a88a"><div class="ttname"><a href="classtest__helpers_1_1_p_p_m_loader.xhtml#a2f57f54d8c03b615bb31eee091d8a88a">test_helpers::PPMLoader::is_open</a></div><div class="ttdeci">bool is_open()</div><div class="ttdoc">Return true if a PPM file is currently open. </div><div class="ttdef"><b>Definition:</b> <a href="test__helpers_2_utils_8h_source.xhtml#l00114">Utils.h:114</a></div></div>
 217 <div class="ttc" id="_validate_8h_xhtml_a0d34a8aa07600727e4e5034c7cdad47d"><div class="ttname"><a href="_validate_8h.xhtml#a0d34a8aa07600727e4e5034c7cdad47d">ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN</a></div><div class="ttdeci">#define ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(t,...)</div><div class="ttdef"><b>Definition:</b> <a href="_validate_8h_source.xhtml#l00215">Validate.h:215</a></div></div>
 218 <div class="ttc" id="_error_8h_xhtml_a4103adbb45806b2f2002d44b91d0d206"><div class="ttname"><a href="_error_8h.xhtml#a4103adbb45806b2f2002d44b91d0d206">ARM_COMPUTE_UNUSED</a></div><div class="ttdeci">#define ARM_COMPUTE_UNUSED(var)</div><div class="ttdoc">To avoid unused variables warnings. </div><div class="ttdef"><b>Definition:</b> <a href="_error_8h_source.xhtml#l00049">Error.h:49</a></div></div>
 219 <div class="ttc" id="_error_8h_xhtml_a54a6080c9f4df1f908e57a9bbb46f5da"><div class="ttname"><a href="_error_8h.xhtml#a54a6080c9f4df1f908e57a9bbb46f5da">ARM_COMPUTE_ERROR_ON</a></div><div class="ttdeci">#define ARM_COMPUTE_ERROR_ON(cond)</div><div class="ttdoc">If the condition is true then an error message is printed and an exception thrown. </div><div class="ttdef"><b>Definition:</b> <a href="_error_8h_source.xhtml#l00100">Error.h:100</a></div></div>
 220 <div class="ttc" id="classarm__compute_1_1_window_1_1_dimension_xhtml"><div class="ttname"><a href="classarm__compute_1_1_window_1_1_dimension.xhtml">arm_compute::Window::Dimension</a></div><div class="ttdoc">Describe one of the image&amp;#39;s dimensions with a start, end and step. </div><div class="ttdef"><b>Definition:</b> <a href="_window_8h_source.xhtml#l00068">Window.h:68</a></div></div>
 221 <div class="ttc" id="classarm__compute_1_1_coordinates_xhtml"><div class="ttname"><a href="classarm__compute_1_1_coordinates.xhtml">arm_compute::Coordinates</a></div><div class="ttdoc">Coordinates of an item. </div><div class="ttdef"><b>Definition:</b> <a href="_coordinates_8h_source.xhtml#l00037">Coordinates.h:37</a></div></div>
 222 <div class="ttc" id="namespacearm__compute_xhtml_a78fd1c0056e9add7ab01b8e118c0038d"><div class="ttname"><a href="namespacearm__compute.xhtml#a78fd1c0056e9add7ab01b8e118c0038d">arm_compute::execute_window_loop</a></div><div class="ttdeci">void execute_window_loop(const Window &amp;w, L &amp;&amp;lambda_function, Ts &amp;&amp;...iterators)</div><div class="ttdoc">Iterate through the passed window, automatically adjusting the iterators and calling the lambda_funct...</div></div>
 223 <div class="ttc" id="classarm__compute_1_1_window_xhtml_acd3d2bba51cb84d34dd7656ad2375a6e"><div class="ttname"><a href="classarm__compute_1_1_window.xhtml#acd3d2bba51cb84d34dd7656ad2375a6e">arm_compute::Window::set</a></div><div class="ttdeci">void set(size_t dimension, const Dimension &amp;dim)</div><div class="ttdoc">Set the values of a given dimension. </div><div class="ttdef"><b>Definition:</b> <a href="_window_8inl_source.xhtml#l00040">Window.inl:40</a></div></div>
 224 <div class="ttc" id="classarm__compute_1_1_iterator_xhtml"><div class="ttname"><a href="classarm__compute_1_1_iterator.xhtml">arm_compute::Iterator</a></div><div class="ttdoc">Iterator updated by execute_window_loop for each window element. </div><div class="ttdef"><b>Definition:</b> <a href="_helpers_8h_source.xhtml#l00211">Helpers.h:211</a></div></div>
 225 <div class="ttc" id="classarm__compute_1_1_window_xhtml"><div class="ttname"><a href="classarm__compute_1_1_window.xhtml">arm_compute::Window</a></div><div class="ttdoc">Describe a multidimensional execution window. </div><div class="ttdef"><b>Definition:</b> <a href="_window_8h_source.xhtml#l00039">Window.h:39</a></div></div>
 226 <div class="ttc" id="_error_8h_xhtml_a5bbdcf574d3f5e412fa6a1117911e67b"><div class="ttname"><a href="_error_8h.xhtml#a5bbdcf574d3f5e412fa6a1117911e67b">ARM_COMPUTE_ERROR_ON_MSG</a></div><div class="ttdeci">#define ARM_COMPUTE_ERROR_ON_MSG(cond,...)</div><div class="ttdef"><b>Definition:</b> <a href="_error_8h_source.xhtml#l00091">Error.h:91</a></div></div>
 227 <div class="ttc" id="classarm__compute_1_1_c_l_tensor_xhtml"><div class="ttname"><a href="classarm__compute_1_1_c_l_tensor.xhtml">arm_compute::CLTensor</a></div><div class="ttdoc">Basic implementation of the OpenCL tensor interface. </div><div class="ttdef"><b>Definition:</b> <a href="_c_l_tensor_8h_source.xhtml#l00039">CLTensor.h:39</a></div></div>
 228 </div><!-- fragment -->
 229 </div>
 230 </div>
 231 <a class="anchor" id="a283b961e6ca7b117b106c8710c7cfe81"></a>
 232 <div class="memitem">
 233 <div class="memproto">
 234 <table class="mlabels">
 235   <tr>
 236   <td class="mlabels-left">
 237       <table class="memname">
 238         <tr>
 239           <td class="memname">void init_image </td>
 240           <td>(</td>
 241           <td class="paramtype">T &amp;&#160;</td>
 242           <td class="paramname"><em>image</em>, </td>
 243         </tr>
 244         <tr>
 245           <td class="paramkey"></td>
 246           <td></td>
 247           <td class="paramtype"><a class="el" href="namespacearm__compute.xhtml#ab4e88c89b3b7ea1735996cc4def22d58">Format</a>&#160;</td>
 248           <td class="paramname"><em>format</em>&#160;</td>
 249         </tr>
 250         <tr>
 251           <td></td>
 252           <td>)</td>
 253           <td></td><td></td>
 254         </tr>
 255       </table>
 256   </td>
 257   <td class="mlabels-right">
 258 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 259   </tr>
 260 </table>
 261 </div><div class="memdoc">
 262
 263 <p>Initialise an image's metadata with the dimensions of the PPM file currently open. </p>
 264 <dl class="params"><dt>Parameters</dt><dd>
 265   <table class="params">
 266     <tr><td class="paramdir">[out]</td><td class="paramname">image</td><td><a class="el" href="struct_image.xhtml" title="Structure to hold Image information. ">Image</a> to initialise </td></tr>
 267     <tr><td class="paramdir">[in]</td><td class="paramname">format</td><td>Format to use for the image (Must be RGB888 or U8) </td></tr>
 268   </table>
 269   </dd>
 270 </dl>
 271
 272 <p>Definition at line <a class="el" href="test__helpers_2_utils_8h_source.xhtml#l00125">125</a> of file <a class="el" href="test__helpers_2_utils_8h_source.xhtml">Utils.h</a>.</p>
 273
 274 <p>References <a class="el" href="_error_8h_source.xhtml#l00100">ARM_COMPUTE_ERROR_ON</a>, <a class="el" href="namespacearm__compute.xhtml#ab4e88c89b3b7ea1735996cc4def22d58a30ff380a3be74628024063a99fba10f0">arm_compute::RGB888</a>, and <a class="el" href="namespacearm__compute.xhtml#ab4e88c89b3b7ea1735996cc4def22d58a6669348b484e3008dca2bfa8e85e40b5">arm_compute::U8</a>.</p>
 275
 276 <p>Referenced by <a class="el" href="cl__convolution_8cpp_source.xhtml#l00053">main_cl_convolution()</a>, <a class="el" href="cl__events_8cpp_source.xhtml#l00033">main_cl_events()</a>, <a class="el" href="neon__convolution_8cpp_source.xhtml#l00052">main_neon_convolution()</a>, <a class="el" href="neon__scale_8cpp_source.xhtml#l00032">main_neon_scale()</a>, and <a class="el" href="neoncl__scale__median__gaussian_8cpp_source.xhtml#l00039">main_neoncl_scale_median_gaussian()</a>.</p>
 277 <div class="fragment"><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    {</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;        <a class="code" href="_error_8h.xhtml#a54a6080c9f4df1f908e57a9bbb46f5da">ARM_COMPUTE_ERROR_ON</a>(!<a class="code" href="classtest__helpers_1_1_p_p_m_loader.xhtml#a2f57f54d8c03b615bb31eee091d8a88a">is_open</a>());</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;        <a class="code" href="_error_8h.xhtml#a54a6080c9f4df1f908e57a9bbb46f5da">ARM_COMPUTE_ERROR_ON</a>(format != Format::RGB888 &amp;&amp; format != Format::U8);</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;        <span class="comment">// Use the size of the input PPM image</span></div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;        <a class="code" href="classarm__compute_1_1_tensor_info.xhtml">TensorInfo</a> image_info(_width, _height, format);</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;        image.allocator()-&gt;init(image_info);</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;    }</div><div class="ttc" id="classtest__helpers_1_1_p_p_m_loader_xhtml_a2f57f54d8c03b615bb31eee091d8a88a"><div class="ttname"><a href="classtest__helpers_1_1_p_p_m_loader.xhtml#a2f57f54d8c03b615bb31eee091d8a88a">test_helpers::PPMLoader::is_open</a></div><div class="ttdeci">bool is_open()</div><div class="ttdoc">Return true if a PPM file is currently open. </div><div class="ttdef"><b>Definition:</b> <a href="test__helpers_2_utils_8h_source.xhtml#l00114">Utils.h:114</a></div></div>
 278 <div class="ttc" id="_error_8h_xhtml_a54a6080c9f4df1f908e57a9bbb46f5da"><div class="ttname"><a href="_error_8h.xhtml#a54a6080c9f4df1f908e57a9bbb46f5da">ARM_COMPUTE_ERROR_ON</a></div><div class="ttdeci">#define ARM_COMPUTE_ERROR_ON(cond)</div><div class="ttdoc">If the condition is true then an error message is printed and an exception thrown. </div><div class="ttdef"><b>Definition:</b> <a href="_error_8h_source.xhtml#l00100">Error.h:100</a></div></div>
 279 <div class="ttc" id="classarm__compute_1_1_tensor_info_xhtml"><div class="ttname"><a href="classarm__compute_1_1_tensor_info.xhtml">arm_compute::TensorInfo</a></div><div class="ttdoc">Store the tensor&amp;#39;s metadata. </div><div class="ttdef"><b>Definition:</b> <a href="_tensor_info_8h_source.xhtml#l00040">TensorInfo.h:40</a></div></div>
 280 </div><!-- fragment -->
 281 </div>
 282 </div>
 283 <a class="anchor" id="a2f57f54d8c03b615bb31eee091d8a88a"></a>
 284 <div class="memitem">
 285 <div class="memproto">
 286 <table class="mlabels">
 287   <tr>
 288   <td class="mlabels-left">
 289       <table class="memname">
 290         <tr>
 291           <td class="memname">bool is_open </td>
 292           <td>(</td>
 293           <td class="paramname"></td><td>)</td>
 294           <td></td>
 295         </tr>
 296       </table>
 297   </td>
 298   <td class="mlabels-right">
 299 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 300   </tr>
 301 </table>
 302 </div><div class="memdoc">
 303
 304 <p>Return true if a PPM file is currently open. </p>
 305
 306 <p>Definition at line <a class="el" href="test__helpers_2_utils_8h_source.xhtml#l00114">114</a> of file <a class="el" href="test__helpers_2_utils_8h_source.xhtml">Utils.h</a>.</p>
 307
 308 <p>Referenced by <a class="el" href="cl__convolution_8cpp_source.xhtml#l00053">main_cl_convolution()</a>, <a class="el" href="cl__events_8cpp_source.xhtml#l00033">main_cl_events()</a>, <a class="el" href="neon__convolution_8cpp_source.xhtml#l00052">main_neon_convolution()</a>, <a class="el" href="neon__scale_8cpp_source.xhtml#l00032">main_neon_scale()</a>, and <a class="el" href="neoncl__scale__median__gaussian_8cpp_source.xhtml#l00039">main_neoncl_scale_median_gaussian()</a>.</p>
 309 <div class="fragment"><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;    {</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;        <span class="keywordflow">return</span> _fs.is_open();</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;    }</div></div><!-- fragment -->
 310 </div>
 311 </div>
 312 <a class="anchor" id="a36e58f3e64f3851ebac7a9556b4704ed"></a>
 313 <div class="memitem">
 314 <div class="memproto">
 315 <table class="mlabels">
 316   <tr>
 317   <td class="mlabels-left">
 318       <table class="memname">
 319         <tr>
 320           <td class="memname">void open </td>
 321           <td>(</td>
 322           <td class="paramtype">const std::string &amp;&#160;</td>
 323           <td class="paramname"><em>ppm_filename</em></td><td>)</td>
 324           <td></td>
 325         </tr>
 326       </table>
 327   </td>
 328   <td class="mlabels-right">
 329 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 330   </tr>
 331 </table>
 332 </div><div class="memdoc">
 333
 334 <p>Open a PPM file and reads its metadata (Width, height) </p>
 335 <dl class="params"><dt>Parameters</dt><dd>
 336   <table class="params">
 337     <tr><td class="paramdir">[in]</td><td class="paramname">ppm_filename</td><td>File to open </td></tr>
 338   </table>
 339   </dd>
 340 </dl>
 341
 342 <p>Definition at line <a class="el" href="test__helpers_2_utils_8h_source.xhtml#l00094">94</a> of file <a class="el" href="test__helpers_2_utils_8h_source.xhtml">Utils.h</a>.</p>
 343
 344 <p>References <a class="el" href="_error_8h_source.xhtml#l00031">ARM_COMPUTE_ERROR</a>, <a class="el" href="_error_8h_source.xhtml#l00100">ARM_COMPUTE_ERROR_ON</a>, <a class="el" href="_error_8h_source.xhtml#l00091">ARM_COMPUTE_ERROR_ON_MSG</a>, and <a class="el" href="_utils_8cpp_source.xhtml#l00135">test_helpers::parse_ppm_header()</a>.</p>
 345
 346 <p>Referenced by <a class="el" href="cl__convolution_8cpp_source.xhtml#l00053">main_cl_convolution()</a>, <a class="el" href="cl__events_8cpp_source.xhtml#l00033">main_cl_events()</a>, <a class="el" href="neon__convolution_8cpp_source.xhtml#l00052">main_neon_convolution()</a>, <a class="el" href="neon__scale_8cpp_source.xhtml#l00032">main_neon_scale()</a>, and <a class="el" href="neoncl__scale__median__gaussian_8cpp_source.xhtml#l00039">main_neoncl_scale_median_gaussian()</a>.</p>
 347 <div class="fragment"><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;        <a class="code" href="_error_8h.xhtml#a54a6080c9f4df1f908e57a9bbb46f5da">ARM_COMPUTE_ERROR_ON</a>(<a class="code" href="classtest__helpers_1_1_p_p_m_loader.xhtml#a2f57f54d8c03b615bb31eee091d8a88a">is_open</a>());</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;        <span class="keywordflow">try</span></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;            _fs.exceptions(std::ifstream::failbit | std::ifstream::badbit);</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;            _fs.open(ppm_filename, std::ios::in | std::ios::binary);</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="keywordtype">unsigned</span> <span class="keywordtype">int</span> max_val = 0;</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;            std::tie(_width, _height, max_val) = <a class="code" href="namespacetest__helpers.xhtml#a3aa8f5f1b94f88fdf5b43a53e29379cf">parse_ppm_header</a>(_fs);</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;            <a class="code" href="_error_8h.xhtml#a5bbdcf574d3f5e412fa6a1117911e67b">ARM_COMPUTE_ERROR_ON_MSG</a>(max_val &gt;= 256, <span class="stringliteral">&quot;2 bytes per colour channel not supported in file %s&quot;</span>, ppm_filename.c_str());</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;        }</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;        <span class="keywordflow">catch</span>(<span class="keyword">const</span> std::ifstream::failure &amp;e)</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;        {</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;            <a class="code" href="_error_8h.xhtml#a05b19c75afe9c24200a62b9724734bbd">ARM_COMPUTE_ERROR</a>(<span class="stringliteral">&quot;Accessing %s: %s&quot;</span>, ppm_filename.c_str(), e.what());</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;        }</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;    }</div><div class="ttc" id="_error_8h_xhtml_a05b19c75afe9c24200a62b9724734bbd"><div class="ttname"><a href="_error_8h.xhtml#a05b19c75afe9c24200a62b9724734bbd">ARM_COMPUTE_ERROR</a></div><div class="ttdeci">#define ARM_COMPUTE_ERROR(...)</div><div class="ttdoc">Print the given message then throw an std::runtime_error. </div><div class="ttdef"><b>Definition:</b> <a href="_error_8h_source.xhtml#l00031">Error.h:31</a></div></div>
 348 <div class="ttc" id="classtest__helpers_1_1_p_p_m_loader_xhtml_a2f57f54d8c03b615bb31eee091d8a88a"><div class="ttname"><a href="classtest__helpers_1_1_p_p_m_loader.xhtml#a2f57f54d8c03b615bb31eee091d8a88a">test_helpers::PPMLoader::is_open</a></div><div class="ttdeci">bool is_open()</div><div class="ttdoc">Return true if a PPM file is currently open. </div><div class="ttdef"><b>Definition:</b> <a href="test__helpers_2_utils_8h_source.xhtml#l00114">Utils.h:114</a></div></div>
 349 <div class="ttc" id="_error_8h_xhtml_a54a6080c9f4df1f908e57a9bbb46f5da"><div class="ttname"><a href="_error_8h.xhtml#a54a6080c9f4df1f908e57a9bbb46f5da">ARM_COMPUTE_ERROR_ON</a></div><div class="ttdeci">#define ARM_COMPUTE_ERROR_ON(cond)</div><div class="ttdoc">If the condition is true then an error message is printed and an exception thrown. </div><div class="ttdef"><b>Definition:</b> <a href="_error_8h_source.xhtml#l00100">Error.h:100</a></div></div>
 350 <div class="ttc" id="namespacetest__helpers_xhtml_a3aa8f5f1b94f88fdf5b43a53e29379cf"><div class="ttname"><a href="namespacetest__helpers.xhtml#a3aa8f5f1b94f88fdf5b43a53e29379cf">test_helpers::parse_ppm_header</a></div><div class="ttdeci">std::tuple&lt; unsigned int, unsigned int, int &gt; parse_ppm_header(std::ifstream &amp;fs)</div><div class="ttdoc">Parse the ppm header from an input file stream. </div><div class="ttdef"><b>Definition:</b> <a href="_utils_8cpp_source.xhtml#l00135">Utils.cpp:135</a></div></div>
 351 <div class="ttc" id="_error_8h_xhtml_a5bbdcf574d3f5e412fa6a1117911e67b"><div class="ttname"><a href="_error_8h.xhtml#a5bbdcf574d3f5e412fa6a1117911e67b">ARM_COMPUTE_ERROR_ON_MSG</a></div><div class="ttdeci">#define ARM_COMPUTE_ERROR_ON_MSG(cond,...)</div><div class="ttdef"><b>Definition:</b> <a href="_error_8h_source.xhtml#l00091">Error.h:91</a></div></div>
 352 </div><!-- fragment -->
 353 </div>
 354 </div>
 355 <hr/>The documentation for this class was generated from the following file:<ul>
 356 <li>test_helpers/<a class="el" href="test__helpers_2_utils_8h_source.xhtml">Utils.h</a></li>
 357 </ul>
 358 </div><!-- contents -->
 359 </div><!-- doc-content -->
 360 <!-- start footer part -->
 361 <div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
 362   <ul>
 363     <li class="navelem"><a class="el" href="namespacetest__helpers.xhtml">test_helpers</a></li><li class="navelem"><a class="el" href="classtest__helpers_1_1_p_p_m_loader.xhtml">PPMLoader</a></li>
 364     <li class="footer">Generated on Fri Mar 24 2017 17:23:51 for ARM Compute Library by
 365     <a href="http://www.doxygen.org/index.html">
 366     <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.11 </li>
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