documentation/integral__image_8cl.xhtml

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 113
 114 <div class="header">
 115   <div class="summary">
 116 <a href="#func-members">Functions</a>  </div>
 117   <div class="headertitle">
 118 <div class="title">integral_image.cl File Reference</div>  </div>
 119 </div><!--header-->
 120 <div class="contents">
 121 <div class="textblock"><code>#include &quot;<a class="el" href="helpers_8h_source.xhtml">helpers.h</a>&quot;</code><br />
 122 </div>
 123 <p><a href="integral__image_8cl_source.xhtml">Go to the source code of this file.</a></p>
 124 <table class="memberdecls">
 125 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
 126 Functions</h2></td></tr>
 127 <tr class="memitem:a472be6fbc82158f3eb807d9e52e3254b"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="integral__image_8cl.xhtml#a472be6fbc82158f3eb807d9e52e3254b">integral_horizontal</a> (__global uchar *src_ptr, uint src_stride_x, uint src_step_x, uint src_stride_y, uint src_step_y, uint src_offset_first_element_in_bytes, __global uchar *dst_ptr, uint dst_stride_x, uint dst_step_x, uint dst_stride_y, uint dst_step_y, uint dst_offset_first_element_in_bytes)</td></tr>
 128 <tr class="memdesc:a472be6fbc82158f3eb807d9e52e3254b"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function computes the horizontal integral of the image.  <a href="#a472be6fbc82158f3eb807d9e52e3254b">More...</a><br /></td></tr>
 129 <tr class="separator:a472be6fbc82158f3eb807d9e52e3254b"><td class="memSeparator" colspan="2">&#160;</td></tr>
 130 <tr class="memitem:ae909fdef8be348f0da3b730289410433"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="integral__image_8cl.xhtml#ae909fdef8be348f0da3b730289410433">integral_vertical</a> (__global uchar *src_ptr, uint src_stride_x, uint src_step_x, uint src_stride_y, uint src_step_y, uint src_offset_first_element_in_bytes, uint height)</td></tr>
 131 <tr class="memdesc:ae909fdef8be348f0da3b730289410433"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function computes the vertical integral of the image.  <a href="#ae909fdef8be348f0da3b730289410433">More...</a><br /></td></tr>
 132 <tr class="separator:ae909fdef8be348f0da3b730289410433"><td class="memSeparator" colspan="2">&#160;</td></tr>
 133 </table>
 134 <h2 class="groupheader">Function Documentation</h2>
 135 <a class="anchor" id="a472be6fbc82158f3eb807d9e52e3254b"></a>
 136 <div class="memitem">
 137 <div class="memproto">
 138       <table class="memname">
 139         <tr>
 140           <td class="memname">__kernel void integral_horizontal </td>
 141           <td>(</td>
 142           <td class="paramtype">__global uchar *&#160;</td>
 143           <td class="paramname"><em>src_ptr</em>, </td>
 144         </tr>
 145         <tr>
 146           <td class="paramkey"></td>
 147           <td></td>
 148           <td class="paramtype">uint&#160;</td>
 149           <td class="paramname"><em>src_stride_x</em>, </td>
 150         </tr>
 151         <tr>
 152           <td class="paramkey"></td>
 153           <td></td>
 154           <td class="paramtype">uint&#160;</td>
 155           <td class="paramname"><em>src_step_x</em>, </td>
 156         </tr>
 157         <tr>
 158           <td class="paramkey"></td>
 159           <td></td>
 160           <td class="paramtype">uint&#160;</td>
 161           <td class="paramname"><em>src_stride_y</em>, </td>
 162         </tr>
 163         <tr>
 164           <td class="paramkey"></td>
 165           <td></td>
 166           <td class="paramtype">uint&#160;</td>
 167           <td class="paramname"><em>src_step_y</em>, </td>
 168         </tr>
 169         <tr>
 170           <td class="paramkey"></td>
 171           <td></td>
 172           <td class="paramtype">uint&#160;</td>
 173           <td class="paramname"><em>src_offset_first_element_in_bytes</em>, </td>
 174         </tr>
 175         <tr>
 176           <td class="paramkey"></td>
 177           <td></td>
 178           <td class="paramtype">__global uchar *&#160;</td>
 179           <td class="paramname"><em>dst_ptr</em>, </td>
 180         </tr>
 181         <tr>
 182           <td class="paramkey"></td>
 183           <td></td>
 184           <td class="paramtype">uint&#160;</td>
 185           <td class="paramname"><em>dst_stride_x</em>, </td>
 186         </tr>
 187         <tr>
 188           <td class="paramkey"></td>
 189           <td></td>
 190           <td class="paramtype">uint&#160;</td>
 191           <td class="paramname"><em>dst_step_x</em>, </td>
 192         </tr>
 193         <tr>
 194           <td class="paramkey"></td>
 195           <td></td>
 196           <td class="paramtype">uint&#160;</td>
 197           <td class="paramname"><em>dst_stride_y</em>, </td>
 198         </tr>
 199         <tr>
 200           <td class="paramkey"></td>
 201           <td></td>
 202           <td class="paramtype">uint&#160;</td>
 203           <td class="paramname"><em>dst_step_y</em>, </td>
 204         </tr>
 205         <tr>
 206           <td class="paramkey"></td>
 207           <td></td>
 208           <td class="paramtype">uint&#160;</td>
 209           <td class="paramname"><em>dst_offset_first_element_in_bytes</em>&#160;</td>
 210         </tr>
 211         <tr>
 212           <td></td>
 213           <td>)</td>
 214           <td></td><td></td>
 215         </tr>
 216       </table>
 217 </div><div class="memdoc">
 218
 219 <p>This function computes the horizontal integral of the image. </p>
 220 <dl class="params"><dt>Parameters</dt><dd>
 221   <table class="params">
 222     <tr><td class="paramdir">[in]</td><td class="paramname">src_ptr</td><td>Pointer to the source image. Supported data types: U8 </td></tr>
 223     <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
 224     <tr><td class="paramdir">[in]</td><td class="paramname">src_step_x</td><td>src_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
 225     <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
 226     <tr><td class="paramdir">[in]</td><td class="paramname">src_step_y</td><td>src_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
 227     <tr><td class="paramdir">[in]</td><td class="paramname">src_offset_first_element_in_bytes</td><td>The offset of the first element in the source image </td></tr>
 228     <tr><td class="paramdir">[out]</td><td class="paramname">dst_ptr</td><td>Pointer to the destination image. Supported data types: U32 </td></tr>
 229     <tr><td class="paramdir">[in]</td><td class="paramname">dst_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
 230     <tr><td class="paramdir">[in]</td><td class="paramname">dst_step_x</td><td>dst_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
 231     <tr><td class="paramdir">[in]</td><td class="paramname">dst_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
 232     <tr><td class="paramdir">[in]</td><td class="paramname">dst_step_y</td><td>dst_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
 233     <tr><td class="paramdir">[in]</td><td class="paramname">dst_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr>
 234   </table>
 235   </dd>
 236 </dl>
 237
 238 <p>Definition at line <a class="el" href="integral__image_8cl_source.xhtml#l00041">41</a> of file <a class="el" href="integral__image_8cl_source.xhtml">integral_image.cl</a>.</p>
 239
 240 <p>References <a class="el" href="helpers_8h_source.xhtml#l00073">CONVERT_TO_IMAGE_STRUCT</a>, and <a class="el" href="helpers_8h_source.xhtml#l00201">offset()</a>.</p>
 241 <div class="fragment"><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;    <a class="code" href="struct_image.xhtml">Image</a> src = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src);</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> dst = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(dst);</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;    uint prev = 0;</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;    <span class="keywordflow">for</span>(uint j = 0; j &lt; src_step_x; j += 16)</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;    {</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;        barrier(CLK_GLOBAL_MEM_FENCE);</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;        uint16 res = convert_uint16(vload16(0, <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, j, 0)));</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;        res.s0 += prev;</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;        res.s1 += res.s0;</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;        res.s2 += res.s1;</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;        res.s3 += res.s2;</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;        res.s4 += res.s3;</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;        res.s5 += res.s4;</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;        res.s6 += res.s5;</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;        res.s7 += res.s6;</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;        res.s8 += res.s7;</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;        res.s9 += res.s8;</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;        res.sA += res.s9;</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;        res.sB += res.sA;</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;        res.sC += res.sB;</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;        res.sD += res.sC;</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;        res.sE += res.sD;</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;        res.sF += res.sE;</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;        prev = res.sF;</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;        vstore16(res, 0, (__global uint *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;dst, j, 0));</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    }</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;}</div><div class="ttc" id="helpers_8h_xhtml_a009469e4d9b8fce3b6d5e97d2077827d"><div class="ttname"><a href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a></div><div class="ttdeci">__global uchar * offset(const Image *img, int x, int y)</div><div class="ttdoc">Get the pointer position of a Image. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00201">helpers.h:201</a></div></div>
 242 <div class="ttc" id="helpers_8h_xhtml_aebe814363556c244be043b13e7969197"><div class="ttname"><a href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a></div><div class="ttdeci">#define CONVERT_TO_IMAGE_STRUCT(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00073">helpers.h:73</a></div></div>
 243 <div class="ttc" id="struct_image_xhtml"><div class="ttname"><a href="struct_image.xhtml">Image</a></div><div class="ttdoc">Structure to hold Image information. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00095">helpers.h:95</a></div></div>
 244 </div><!-- fragment -->
 245 </div>
 246 </div>
 247 <a class="anchor" id="ae909fdef8be348f0da3b730289410433"></a>
 248 <div class="memitem">
 249 <div class="memproto">
 250       <table class="memname">
 251         <tr>
 252           <td class="memname">__kernel void integral_vertical </td>
 253           <td>(</td>
 254           <td class="paramtype">__global uchar *&#160;</td>
 255           <td class="paramname"><em>src_ptr</em>, </td>
 256         </tr>
 257         <tr>
 258           <td class="paramkey"></td>
 259           <td></td>
 260           <td class="paramtype">uint&#160;</td>
 261           <td class="paramname"><em>src_stride_x</em>, </td>
 262         </tr>
 263         <tr>
 264           <td class="paramkey"></td>
 265           <td></td>
 266           <td class="paramtype">uint&#160;</td>
 267           <td class="paramname"><em>src_step_x</em>, </td>
 268         </tr>
 269         <tr>
 270           <td class="paramkey"></td>
 271           <td></td>
 272           <td class="paramtype">uint&#160;</td>
 273           <td class="paramname"><em>src_stride_y</em>, </td>
 274         </tr>
 275         <tr>
 276           <td class="paramkey"></td>
 277           <td></td>
 278           <td class="paramtype">uint&#160;</td>
 279           <td class="paramname"><em>src_step_y</em>, </td>
 280         </tr>
 281         <tr>
 282           <td class="paramkey"></td>
 283           <td></td>
 284           <td class="paramtype">uint&#160;</td>
 285           <td class="paramname"><em>src_offset_first_element_in_bytes</em>, </td>
 286         </tr>
 287         <tr>
 288           <td class="paramkey"></td>
 289           <td></td>
 290           <td class="paramtype">uint&#160;</td>
 291           <td class="paramname"><em>height</em>&#160;</td>
 292         </tr>
 293         <tr>
 294           <td></td>
 295           <td>)</td>
 296           <td></td><td></td>
 297         </tr>
 298       </table>
 299 </div><div class="memdoc">
 300
 301 <p>This function computes the vertical integral of the image. </p>
 302 <dl class="params"><dt>Parameters</dt><dd>
 303   <table class="params">
 304     <tr><td class="paramdir">[in,out]</td><td class="paramname">src_ptr</td><td>Pointer to the source image. Supported data types: U32 </td></tr>
 305     <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
 306     <tr><td class="paramdir">[in]</td><td class="paramname">src_step_x</td><td>src_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
 307     <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
 308     <tr><td class="paramdir">[in]</td><td class="paramname">src_step_y</td><td>src_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
 309     <tr><td class="paramdir">[in]</td><td class="paramname">src_offset_first_element_in_bytes</td><td>The offset of the first element in the source image </td></tr>
 310     <tr><td class="paramdir">[in]</td><td class="paramname">height</td><td><a class="el" href="struct_image.xhtml" title="Structure to hold Image information. ">Image</a> height. </td></tr>
 311   </table>
 312   </dd>
 313 </dl>
 314
 315 <p>Definition at line <a class="el" href="integral__image_8cl_source.xhtml#l00085">85</a> of file <a class="el" href="integral__image_8cl_source.xhtml">integral_image.cl</a>.</p>
 316
 317 <p>References <a class="el" href="helpers_8h_source.xhtml#l00073">CONVERT_TO_IMAGE_STRUCT</a>, and <a class="el" href="helpers_8h_source.xhtml#l00201">offset()</a>.</p>
 318 <div class="fragment"><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;    <a class="code" href="struct_image.xhtml">Image</a> src = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src);</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;    uint8 prev = vload8(0, (__global uint *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, 0, 0));</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    <span class="keywordflow">for</span>(uint j = 1; j &lt; height; ++j)</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;        barrier(CLK_GLOBAL_MEM_FENCE);</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;        uint8 res = vload8(0, (__global uint *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, 0, j));</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;        res += prev;</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;        vstore8(res, 0, (__global uint *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, 0, j));</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;        prev = res;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    }</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;}</div><div class="ttc" id="helpers_8h_xhtml_a009469e4d9b8fce3b6d5e97d2077827d"><div class="ttname"><a href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a></div><div class="ttdeci">__global uchar * offset(const Image *img, int x, int y)</div><div class="ttdoc">Get the pointer position of a Image. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00201">helpers.h:201</a></div></div>
 319 <div class="ttc" id="helpers_8h_xhtml_aebe814363556c244be043b13e7969197"><div class="ttname"><a href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a></div><div class="ttdeci">#define CONVERT_TO_IMAGE_STRUCT(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00073">helpers.h:73</a></div></div>
 320 <div class="ttc" id="struct_image_xhtml"><div class="ttname"><a href="struct_image.xhtml">Image</a></div><div class="ttdoc">Structure to hold Image information. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00095">helpers.h:95</a></div></div>
 321 </div><!-- fragment -->
 322 </div>
 323 </div>
 324 </div><!-- contents -->
 325 </div><!-- doc-content -->
 326 <!-- start footer part -->
 327 <div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
 328   <ul>
 329     <li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.xhtml">src</a></li><li class="navelem"><a class="el" href="dir_aebb8dcc11953d78e620bbef0b9e2183.xhtml">core</a></li><li class="navelem"><a class="el" href="dir_8c278f79c760e5c5fbd911f9870614c1.xhtml">CL</a></li><li class="navelem"><a class="el" href="dir_25885286e9dad4fa105b7b25a8031bbf.xhtml">cl_kernels</a></li><li class="navelem"><a class="el" href="integral__image_8cl.xhtml">integral_image.cl</a></li>
 330     <li class="footer">Generated on Wed Apr 12 2017 14:26:05 for ARM Compute Library by
 331     <a href="http://www.doxygen.org/index.html">
 332     <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.11 </li>
 333   </ul>
 334 </div>
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