documentation/roi__pooling__layer_8cl.xhtml

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 115 <div class="header">
 116   <div class="summary">
 117 <a href="#func-members">Functions</a>  </div>
 118   <div class="headertitle">
 119 <div class="title">roi_pooling_layer.cl File Reference</div>  </div>
 120 </div><!--header-->
 121 <div class="contents">
 122 <div class="textblock"><code>#include &quot;<a class="el" href="helpers_8h_source.xhtml">helpers.h</a>&quot;</code><br />
 123 </div>
 124 <p><a href="roi__pooling__layer_8cl_source.xhtml">Go to the source code of this file.</a></p>
 125 <table class="memberdecls">
 126 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
 127 Functions</h2></td></tr>
 128 <tr class="memitem:aa841846d3e0f01df176038026eab8e25"><td class="memItemLeft" align="right" valign="top"><a class="el" href="convolution9x9_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="roi__pooling__layer_8cl.xhtml#aa841846d3e0f01df176038026eab8e25">vec4_max</a> (DATA_TYPE4 vec)</td></tr>
 129 <tr class="separator:aa841846d3e0f01df176038026eab8e25"><td class="memSeparator" colspan="2">&#160;</td></tr>
 130 <tr class="memitem:a03ae72789bf65b85136cb5356b4c189b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="convolution9x9_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="roi__pooling__layer_8cl.xhtml#a03ae72789bf65b85136cb5356b4c189b">vec8_max</a> (DATA_TYPE8 vec)</td></tr>
 131 <tr class="separator:a03ae72789bf65b85136cb5356b4c189b"><td class="memSeparator" colspan="2">&#160;</td></tr>
 132 <tr class="memitem:aa23d7bc09d4a60b853c5b3ba5425c2ec"><td class="memItemLeft" align="right" valign="top"><a class="el" href="convolution9x9_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="roi__pooling__layer_8cl.xhtml#aa23d7bc09d4a60b853c5b3ba5425c2ec">roi_pool_1x1</a> (const <a class="el" href="struct_tensor3_d.xhtml">Tensor3D</a> *input, int region_start_x, int region_end_x, int region_start_y, int region_end_y, int pz)</td></tr>
 133 <tr class="memdesc:aa23d7bc09d4a60b853c5b3ba5425c2ec"><td class="mdescLeft">&#160;</td><td class="mdescRight">Performs a roi pooling on a single output pixel.  <a href="#aa23d7bc09d4a60b853c5b3ba5425c2ec">More...</a><br /></td></tr>
 134 <tr class="separator:aa23d7bc09d4a60b853c5b3ba5425c2ec"><td class="memSeparator" colspan="2">&#160;</td></tr>
 135 <tr class="memitem:a635f6123e4bdfef756e8959061a743b5"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="roi__pooling__layer_8cl.xhtml#a635f6123e4bdfef756e8959061a743b5">roi_pooling_layer</a> (__global uchar *input_ptr, uint input_stride_x, uint input_step_x, uint input_stride_y, uint input_step_y, uint input_stride_z, uint input_step_z, uint input_offset_first_element_in_bytes, __global uchar *rois_ptr, uint rois_stride_x, uint rois_step_x, uint rois_offset_first_element_in_bytes, __global uchar *output_ptr, uint output_stride_x, uint output_step_x, uint output_stride_y, uint output_step_y, uint output_stride_z, uint output_step_z, uint output_offset_first_element_in_bytes, unsigned int input_stride_w, unsigned int output_stride_w)</td></tr>
 136 <tr class="memdesc:a635f6123e4bdfef756e8959061a743b5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Performs a roi pooling function.  <a href="#a635f6123e4bdfef756e8959061a743b5">More...</a><br /></td></tr>
 137 <tr class="separator:a635f6123e4bdfef756e8959061a743b5"><td class="memSeparator" colspan="2">&#160;</td></tr>
 138 </table>
 139 <h2 class="groupheader">Function Documentation</h2>
 140 <a class="anchor" id="aa23d7bc09d4a60b853c5b3ba5425c2ec"></a>
 141 <div class="memitem">
 142 <div class="memproto">
 143 <table class="mlabels">
 144   <tr>
 145   <td class="mlabels-left">
 146       <table class="memname">
 147         <tr>
 148           <td class="memname"><a class="el" href="convolution9x9_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> roi_pool_1x1 </td>
 149           <td>(</td>
 150           <td class="paramtype">const <a class="el" href="struct_tensor3_d.xhtml">Tensor3D</a> *&#160;</td>
 151           <td class="paramname"><em>input</em>, </td>
 152         </tr>
 153         <tr>
 154           <td class="paramkey"></td>
 155           <td></td>
 156           <td class="paramtype">int&#160;</td>
 157           <td class="paramname"><em>region_start_x</em>, </td>
 158         </tr>
 159         <tr>
 160           <td class="paramkey"></td>
 161           <td></td>
 162           <td class="paramtype">int&#160;</td>
 163           <td class="paramname"><em>region_end_x</em>, </td>
 164         </tr>
 165         <tr>
 166           <td class="paramkey"></td>
 167           <td></td>
 168           <td class="paramtype">int&#160;</td>
 169           <td class="paramname"><em>region_start_y</em>, </td>
 170         </tr>
 171         <tr>
 172           <td class="paramkey"></td>
 173           <td></td>
 174           <td class="paramtype">int&#160;</td>
 175           <td class="paramname"><em>region_end_y</em>, </td>
 176         </tr>
 177         <tr>
 178           <td class="paramkey"></td>
 179           <td></td>
 180           <td class="paramtype">int&#160;</td>
 181           <td class="paramname"><em>pz</em>&#160;</td>
 182         </tr>
 183         <tr>
 184           <td></td>
 185           <td>)</td>
 186           <td></td><td></td>
 187         </tr>
 188       </table>
 189   </td>
 190   <td class="mlabels-right">
 191 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 192   </tr>
 193 </table>
 194 </div><div class="memdoc">
 195
 196 <p>Performs a roi pooling on a single output pixel. </p>
 197 <dl class="params"><dt>Parameters</dt><dd>
 198   <table class="params">
 199     <tr><td class="paramdir">[in]</td><td class="paramname">input</td><td>Pointer to input <a class="el" href="struct_tensor3_d.xhtml" title="Structure to hold 3D tensor information. ">Tensor3D</a> struct. </td></tr>
 200     <tr><td class="paramdir">[in]</td><td class="paramname">region_start_x</td><td>Start x index projected onto the input tensor. </td></tr>
 201     <tr><td class="paramdir">[in]</td><td class="paramname">region_end_x</td><td>End x index projected onto the input tensor. </td></tr>
 202     <tr><td class="paramdir">[in]</td><td class="paramname">region_start_y</td><td>Start y index projected onto the input tensor. </td></tr>
 203     <tr><td class="paramdir">[in]</td><td class="paramname">region_end_y</td><td>End y index projected onto the input tensor. </td></tr>
 204     <tr><td class="paramdir">[in]</td><td class="paramname">pz</td><td>z index of the input tensor.</td></tr>
 205   </table>
 206   </dd>
 207 </dl>
 208 <dl class="section return"><dt>Returns</dt><dd>A max pooled value from the region specified in the input tensor. </dd></dl>
 209
 210 <p>Definition at line <a class="el" href="roi__pooling__layer_8cl_source.xhtml#l00061">61</a> of file <a class="el" href="roi__pooling__layer_8cl_source.xhtml">roi_pooling_layer.cl</a>.</p>
 211
 212 <p>References <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, <a class="el" href="helpers_8h_source.xhtml#l00315">tensor3D_offset()</a>, <a class="el" href="fixed__point_8h_source.xhtml#l00093">VEC_DATA_TYPE</a>, and <a class="el" href="helpers_8h_source.xhtml#l00042">VLOAD</a>.</p>
 213
 214 <p>Referenced by <a class="el" href="roi__pooling__layer_8cl_source.xhtml#l00123">roi_pooling_layer()</a>.</p>
 215 <div class="fragment"><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;{</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;    <span class="comment">// Iterate through the pooling region</span></div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;    <span class="keywordflow">if</span>((region_end_x &lt;= region_start_x) || (region_end_y &lt;= region_start_y))</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    {</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;        <span class="keywordflow">return</span> (<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>)0;</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;    <span class="keywordflow">else</span></div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;    {</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;        <span class="keywordtype">int</span> num_iter = (int)((region_end_x - region_start_x) / VEC_SIZE);</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;        <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, VEC_SIZE)</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;        curr_max = (<a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, VEC_SIZE))(-FLT_MAX);</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;        for(<span class="keywordtype">int</span> j = region_start_y; j &lt; region_end_y; ++j)</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="keywordtype">int</span> i = region_start_x;</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;            <span class="keywordflow">for</span>(; i &lt; region_start_x + num_iter * VEC_SIZE; i += VEC_SIZE)</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;            {</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;                <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(DATA_TYPE, VEC_SIZE)</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;                val      = <a class="code" href="helpers_8h.xhtml#a287e2fc366c312b468382c95bb90f91f">VLOAD</a>(VEC_SIZE)(0, (__global DATA_TYPE *)<a class="code" href="helpers_8h.xhtml#a2101b2fe0193ce227ae4e0945e321d85">tensor3D_offset</a>(input, i, j, pz));</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;                curr_max = fmax(val, curr_max);</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;            }</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;            for(; i &lt; region_end_x; ++i)</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;            {</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;                DATA_TYPE val = *(__global DATA_TYPE *)<a class="code" href="helpers_8h.xhtml#a2101b2fe0193ce227ae4e0945e321d85">tensor3D_offset</a>(input, i, j, pz);</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;                curr_max      = fmax(curr_max, val);</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="keywordflow">return</span> (DATA_TYPE)VEC_MAX(curr_max);</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    }</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;}</div><div class="ttc" id="helpers_8h_xhtml_a287e2fc366c312b468382c95bb90f91f"><div class="ttname"><a href="helpers_8h.xhtml#a287e2fc366c312b468382c95bb90f91f">VLOAD</a></div><div class="ttdeci">#define VLOAD(size)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00042">helpers.h:42</a></div></div>
 216 <div class="ttc" id="convolution3x3_8cl_xhtml_afb8c72ce35c4a1f4a2588d6573e54aa1"><div class="ttname"><a href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a></div><div class="ttdeci">#define DATA_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="convolution3x3_8cl_source.xhtml#l00027">convolution3x3.cl:27</a></div></div>
 217 <div class="ttc" id="helpers_8h_xhtml_a2101b2fe0193ce227ae4e0945e321d85"><div class="ttname"><a href="helpers_8h.xhtml#a2101b2fe0193ce227ae4e0945e321d85">tensor3D_offset</a></div><div class="ttdeci">__global const uchar * tensor3D_offset(const Tensor3D *tensor, int x, int y, int z)</div><div class="ttdoc">Get the pointer position of a Tensor3D. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00315">helpers.h:315</a></div></div>
 218 <div class="ttc" id="fixed__point_8h_xhtml_a36f754c05b6fddf6df0d8d0a74f8159f"><div class="ttname"><a href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a></div><div class="ttdeci">#define VEC_DATA_TYPE(type, size)</div><div class="ttdef"><b>Definition:</b> <a href="fixed__point_8h_source.xhtml#l00093">fixed_point.h:93</a></div></div>
 219 </div><!-- fragment -->
 220 </div>
 221 </div>
 222 <a class="anchor" id="a635f6123e4bdfef756e8959061a743b5"></a>
 223 <div class="memitem">
 224 <div class="memproto">
 225       <table class="memname">
 226         <tr>
 227           <td class="memname">__kernel void roi_pooling_layer </td>
 228           <td>(</td>
 229           <td class="paramtype">__global uchar *&#160;</td>
 230           <td class="paramname"><em>input_ptr</em>, </td>
 231         </tr>
 232         <tr>
 233           <td class="paramkey"></td>
 234           <td></td>
 235           <td class="paramtype">uint&#160;</td>
 236           <td class="paramname"><em>input_stride_x</em>, </td>
 237         </tr>
 238         <tr>
 239           <td class="paramkey"></td>
 240           <td></td>
 241           <td class="paramtype">uint&#160;</td>
 242           <td class="paramname"><em>input_step_x</em>, </td>
 243         </tr>
 244         <tr>
 245           <td class="paramkey"></td>
 246           <td></td>
 247           <td class="paramtype">uint&#160;</td>
 248           <td class="paramname"><em>input_stride_y</em>, </td>
 249         </tr>
 250         <tr>
 251           <td class="paramkey"></td>
 252           <td></td>
 253           <td class="paramtype">uint&#160;</td>
 254           <td class="paramname"><em>input_step_y</em>, </td>
 255         </tr>
 256         <tr>
 257           <td class="paramkey"></td>
 258           <td></td>
 259           <td class="paramtype">uint&#160;</td>
 260           <td class="paramname"><em>input_stride_z</em>, </td>
 261         </tr>
 262         <tr>
 263           <td class="paramkey"></td>
 264           <td></td>
 265           <td class="paramtype">uint&#160;</td>
 266           <td class="paramname"><em>input_step_z</em>, </td>
 267         </tr>
 268         <tr>
 269           <td class="paramkey"></td>
 270           <td></td>
 271           <td class="paramtype">uint&#160;</td>
 272           <td class="paramname"><em>input_offset_first_element_in_bytes</em>, </td>
 273         </tr>
 274         <tr>
 275           <td class="paramkey"></td>
 276           <td></td>
 277           <td class="paramtype">__global uchar *&#160;</td>
 278           <td class="paramname"><em>rois_ptr</em>, </td>
 279         </tr>
 280         <tr>
 281           <td class="paramkey"></td>
 282           <td></td>
 283           <td class="paramtype">uint&#160;</td>
 284           <td class="paramname"><em>rois_stride_x</em>, </td>
 285         </tr>
 286         <tr>
 287           <td class="paramkey"></td>
 288           <td></td>
 289           <td class="paramtype">uint&#160;</td>
 290           <td class="paramname"><em>rois_step_x</em>, </td>
 291         </tr>
 292         <tr>
 293           <td class="paramkey"></td>
 294           <td></td>
 295           <td class="paramtype">uint&#160;</td>
 296           <td class="paramname"><em>rois_offset_first_element_in_bytes</em>, </td>
 297         </tr>
 298         <tr>
 299           <td class="paramkey"></td>
 300           <td></td>
 301           <td class="paramtype">__global uchar *&#160;</td>
 302           <td class="paramname"><em>output_ptr</em>, </td>
 303         </tr>
 304         <tr>
 305           <td class="paramkey"></td>
 306           <td></td>
 307           <td class="paramtype">uint&#160;</td>
 308           <td class="paramname"><em>output_stride_x</em>, </td>
 309         </tr>
 310         <tr>
 311           <td class="paramkey"></td>
 312           <td></td>
 313           <td class="paramtype">uint&#160;</td>
 314           <td class="paramname"><em>output_step_x</em>, </td>
 315         </tr>
 316         <tr>
 317           <td class="paramkey"></td>
 318           <td></td>
 319           <td class="paramtype">uint&#160;</td>
 320           <td class="paramname"><em>output_stride_y</em>, </td>
 321         </tr>
 322         <tr>
 323           <td class="paramkey"></td>
 324           <td></td>
 325           <td class="paramtype">uint&#160;</td>
 326           <td class="paramname"><em>output_step_y</em>, </td>
 327         </tr>
 328         <tr>
 329           <td class="paramkey"></td>
 330           <td></td>
 331           <td class="paramtype">uint&#160;</td>
 332           <td class="paramname"><em>output_stride_z</em>, </td>
 333         </tr>
 334         <tr>
 335           <td class="paramkey"></td>
 336           <td></td>
 337           <td class="paramtype">uint&#160;</td>
 338           <td class="paramname"><em>output_step_z</em>, </td>
 339         </tr>
 340         <tr>
 341           <td class="paramkey"></td>
 342           <td></td>
 343           <td class="paramtype">uint&#160;</td>
 344           <td class="paramname"><em>output_offset_first_element_in_bytes</em>, </td>
 345         </tr>
 346         <tr>
 347           <td class="paramkey"></td>
 348           <td></td>
 349           <td class="paramtype">unsigned int&#160;</td>
 350           <td class="paramname"><em>input_stride_w</em>, </td>
 351         </tr>
 352         <tr>
 353           <td class="paramkey"></td>
 354           <td></td>
 355           <td class="paramtype">unsigned int&#160;</td>
 356           <td class="paramname"><em>output_stride_w</em>&#160;</td>
 357         </tr>
 358         <tr>
 359           <td></td>
 360           <td>)</td>
 361           <td></td><td></td>
 362         </tr>
 363       </table>
 364 </div><div class="memdoc">
 365
 366 <p>Performs a roi pooling function. </p>
 367 <dl class="section note"><dt>Note</dt><dd>Datatype must be passed using -DDATA_TYPE e.g. -DDATA_TYPE=float. Supported data types are F16, F32; </dd>
 368 <dd>
 369 Datasize must be passed using -DDATA_SIZE e.g. -DDATA_SIZE=32; </dd>
 370 <dd>
 371 Input dimensions must be passed using -DMAX_DIM_X, -DMAX_DIM_Y and -DMAX_DIM_Z; </dd>
 372 <dd>
 373 Pooled region dimensions must be passed using -DPOOLED_DIM_X and -DPOOLED_DIM_Y; </dd>
 374 <dd>
 375 Spatial scale must be passed using -DSPATIAL_SCALE;</dd></dl>
 376 <dl class="params"><dt>Parameters</dt><dd>
 377   <table class="params">
 378     <tr><td class="paramdir">[in]</td><td class="paramname">input_ptr</td><td>Pointer to the source image. Supported data types: F16, F32 </td></tr>
 379     <tr><td class="paramdir">[in]</td><td class="paramname">input_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
 380     <tr><td class="paramdir">[in]</td><td class="paramname">input_step_x</td><td>input_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
 381     <tr><td class="paramdir">[in]</td><td class="paramname">input_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
 382     <tr><td class="paramdir">[in]</td><td class="paramname">input_step_y</td><td>input_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
 383     <tr><td class="paramdir">[in]</td><td class="paramname">input_stride_z</td><td>Stride of the source tensor in Z dimension (in bytes) </td></tr>
 384     <tr><td class="paramdir">[in]</td><td class="paramname">input_step_z</td><td>input_stride_z * number of elements along Z processed per workitem(in bytes) </td></tr>
 385     <tr><td class="paramdir">[in]</td><td class="paramname">input_offset_first_element_in_bytes</td><td>The offset of the first element in the pooled region of the source image as specifed by ROI </td></tr>
 386     <tr><td class="paramdir">[in]</td><td class="paramname">rois_ptr</td><td>Pointer to the rois array. Layout: {x, y, width, height, batch_indx} </td></tr>
 387     <tr><td class="paramdir">[in]</td><td class="paramname">rois_stride_x</td><td>Stride of the rois array in X dimension (in bytes) </td></tr>
 388     <tr><td class="paramdir">[in]</td><td class="paramname">rois_step_x</td><td>rois_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
 389     <tr><td class="paramdir">[in]</td><td class="paramname">rois_offset_first_element_in_bytes</td><td>The offset of the first element in the rois array </td></tr>
 390     <tr><td class="paramdir">[out]</td><td class="paramname">output_ptr</td><td>Pointer to the destination image. Supported data types: F16, F32 </td></tr>
 391     <tr><td class="paramdir">[in]</td><td class="paramname">output_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
 392     <tr><td class="paramdir">[in]</td><td class="paramname">output_step_x</td><td>output_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
 393     <tr><td class="paramdir">[in]</td><td class="paramname">output_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
 394     <tr><td class="paramdir">[in]</td><td class="paramname">output_step_y</td><td>output_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
 395     <tr><td class="paramdir">[in]</td><td class="paramname">output_stride_z</td><td>Stride of the destination tensor in Z dimension (in bytes) </td></tr>
 396     <tr><td class="paramdir">[in]</td><td class="paramname">output_step_z</td><td>output_stride_z * number of elements along Z processed per workitem(in bytes) </td></tr>
 397     <tr><td class="paramdir">[in]</td><td class="paramname">output_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr>
 398     <tr><td class="paramdir">[in]</td><td class="paramname">input_stride_w</td><td>Stride of the source image in W dimension (in bytes) </td></tr>
 399     <tr><td class="paramdir">[in]</td><td class="paramname">output_stride_w</td><td>Stride of the destination image in W dimension (in bytes) </td></tr>
 400   </table>
 401   </dd>
 402 </dl>
 403
 404 <p>Definition at line <a class="el" href="roi__pooling__layer_8cl_source.xhtml#l00123">123</a> of file <a class="el" href="roi__pooling__layer_8cl_source.xhtml">roi_pooling_layer.cl</a>.</p>
 405
 406 <p>References <a class="el" href="_utility_8h_source.xhtml#l00084">arm_compute::utility::clamp()</a>, <a class="el" href="helpers_8h_source.xhtml#l00123">CONVERT_TO_TENSOR3D_STRUCT_NO_STEP</a>, <a class="el" href="helpers_8h_source.xhtml#l00101">CONVERT_TO_VECTOR_STRUCT_NO_STEP</a>, <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, <a class="el" href="helpers_8h_source.xhtml#l00153">Tensor3D::ptr</a>, <a class="el" href="roi__pooling__layer_8cl_source.xhtml#l00061">roi_pool_1x1()</a>, <a class="el" href="namespacearm__compute.xhtml#a6452ac376d4adb94d93a93d678bb6757">arm_compute::round()</a>, <a class="el" href="helpers_8h_source.xhtml#l00315">tensor3D_offset()</a>, and <a class="el" href="helpers_8h_source.xhtml#l00292">vector_offset()</a>.</p>
 407 <div class="fragment"><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="comment">// Get pixels pointer</span></div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;    <a class="code" href="struct_tensor3_d.xhtml">Tensor3D</a> input  = <a class="code" href="helpers_8h.xhtml#a79e8e562daa6599317d2d1cd86ef1bf2">CONVERT_TO_TENSOR3D_STRUCT_NO_STEP</a>(input);</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    <a class="code" href="struct_vector.xhtml">Vector</a>   rois   = <a class="code" href="helpers_8h.xhtml#a64d779f80eeb923e0ab2313433f7b40b">CONVERT_TO_VECTOR_STRUCT_NO_STEP</a>(rois);</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;    <a class="code" href="struct_tensor3_d.xhtml">Tensor3D</a> output = <a class="code" href="helpers_8h.xhtml#a79e8e562daa6599317d2d1cd86ef1bf2">CONVERT_TO_TENSOR3D_STRUCT_NO_STEP</a>(output);</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> px = get_global_id(0);</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> py = get_global_id(1);</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> pw = get_global_id(2);</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;    <span class="comment">// Load roi parameters</span></div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;    <span class="comment">// roi is laid out as follows:</span></div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;    <span class="comment">// { x, y, width, height, batch_index }</span></div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;    <span class="keyword">const</span> ushort4 roi      = vload4(0, (__global ushort *)<a class="code" href="helpers_8h.xhtml#a7e4940407322d6f0ccb8b6b86b856019">vector_offset</a>(&amp;rois, pw));</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;    <span class="keyword">const</span> ushort roi_batch = *((__global ushort *)<a class="code" href="helpers_8h.xhtml#a7e4940407322d6f0ccb8b6b86b856019">vector_offset</a>(&amp;rois, pw) + 4);</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;    <span class="keyword">const</span> int2 roi_anchor  = convert_int2_sat(<a class="code" href="namespacearm__compute.xhtml#a6452ac376d4adb94d93a93d678bb6757">round</a>(convert_float2(roi.s01) * (<span class="keywordtype">float</span>)SPATIAL_SCALE));</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;    <span class="keyword">const</span> int2 roi_dims    = convert_int2_sat(fmax(<a class="code" href="namespacearm__compute.xhtml#a6452ac376d4adb94d93a93d678bb6757">round</a>(convert_float2(roi.s23) * (<span class="keywordtype">float</span>)SPATIAL_SCALE), 1.f));</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;    <span class="comment">// Calculate pooled region start and end</span></div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    <span class="keyword">const</span> float2 spatial_indx     = (float2)(px, py);</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    <span class="keyword">const</span> float2 pooled_dims      = (float2)(POOLED_DIM_X, POOLED_DIM_Y);</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;    <span class="keyword">const</span> int2   max_spatial_dims = (int2)(MAX_DIM_X, MAX_DIM_Y);</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;    int2         region_start     = convert_int2_sat(floor(spatial_indx / pooled_dims * convert_float2(roi_dims))) + roi_anchor;</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;    int2         region_end       = convert_int2_sat(floor((spatial_indx + 1) / pooled_dims * convert_float2(roi_dims))) + roi_anchor;</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;    region_start = <a class="code" href="namespacearm__compute_1_1utility.xhtml#a12c3c62f510452805c289e180ec78bb7">clamp</a>(region_start, 0, max_spatial_dims);</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;    region_end   = <a class="code" href="namespacearm__compute_1_1utility.xhtml#a12c3c62f510452805c289e180ec78bb7">clamp</a>(region_end, 0, max_spatial_dims);</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;    <span class="comment">// Move input and output pointer across the fourth dimension</span></div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;    input.<a class="code" href="struct_tensor3_d.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a> += roi_batch * input_stride_w;</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;    output.<a class="code" href="struct_tensor3_d.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a> += pw * output_stride_w;</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;    <span class="keywordflow">for</span>(<span class="keywordtype">int</span> pz = 0; pz &lt; MAX_DIM_Z; ++pz)</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;        *(__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a2101b2fe0193ce227ae4e0945e321d85">tensor3D_offset</a>(&amp;output, px, py, pz) = (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>)<a class="code" href="roi__pooling__layer_8cl.xhtml#aa23d7bc09d4a60b853c5b3ba5425c2ec">roi_pool_1x1</a>(&amp;input,</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;                                                                                                       region_start.x,</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;                                                                                                       region_end.x,</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;                                                                                                       region_start.y,</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;                                                                                                       region_end.y, pz);</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;}</div><div class="ttc" id="struct_vector_xhtml"><div class="ttname"><a href="struct_vector.xhtml">Vector</a></div><div class="ttdoc">Structure to hold Vector information. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00134">helpers.h:134</a></div></div>
 408 <div class="ttc" id="convolution3x3_8cl_xhtml_afb8c72ce35c4a1f4a2588d6573e54aa1"><div class="ttname"><a href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a></div><div class="ttdeci">#define DATA_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="convolution3x3_8cl_source.xhtml#l00027">convolution3x3.cl:27</a></div></div>
 409 <div class="ttc" id="namespacearm__compute_1_1utility_xhtml_a12c3c62f510452805c289e180ec78bb7"><div class="ttname"><a href="namespacearm__compute_1_1utility.xhtml#a12c3c62f510452805c289e180ec78bb7">arm_compute::utility::clamp</a></div><div class="ttdeci">T clamp(const T &amp;n, const T &amp;lower, const T &amp;upper)</div><div class="ttdoc">Performs clamping among a lower and upper value. </div><div class="ttdef"><b>Definition:</b> <a href="_utility_8h_source.xhtml#l00084">Utility.h:84</a></div></div>
 410 <div class="ttc" id="struct_tensor3_d_xhtml"><div class="ttname"><a href="struct_tensor3_d.xhtml">Tensor3D</a></div><div class="ttdoc">Structure to hold 3D tensor information. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00151">helpers.h:151</a></div></div>
 411 <div class="ttc" id="helpers_8h_xhtml_a2101b2fe0193ce227ae4e0945e321d85"><div class="ttname"><a href="helpers_8h.xhtml#a2101b2fe0193ce227ae4e0945e321d85">tensor3D_offset</a></div><div class="ttdeci">__global const uchar * tensor3D_offset(const Tensor3D *tensor, int x, int y, int z)</div><div class="ttdoc">Get the pointer position of a Tensor3D. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00315">helpers.h:315</a></div></div>
 412 <div class="ttc" id="helpers_8h_xhtml_a79e8e562daa6599317d2d1cd86ef1bf2"><div class="ttname"><a href="helpers_8h.xhtml#a79e8e562daa6599317d2d1cd86ef1bf2">CONVERT_TO_TENSOR3D_STRUCT_NO_STEP</a></div><div class="ttdeci">#define CONVERT_TO_TENSOR3D_STRUCT_NO_STEP(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00123">helpers.h:123</a></div></div>
 413 <div class="ttc" id="helpers_8h_xhtml_a64d779f80eeb923e0ab2313433f7b40b"><div class="ttname"><a href="helpers_8h.xhtml#a64d779f80eeb923e0ab2313433f7b40b">CONVERT_TO_VECTOR_STRUCT_NO_STEP</a></div><div class="ttdeci">#define CONVERT_TO_VECTOR_STRUCT_NO_STEP(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00101">helpers.h:101</a></div></div>
 414 <div class="ttc" id="roi__pooling__layer_8cl_xhtml_aa23d7bc09d4a60b853c5b3ba5425c2ec"><div class="ttname"><a href="roi__pooling__layer_8cl.xhtml#aa23d7bc09d4a60b853c5b3ba5425c2ec">roi_pool_1x1</a></div><div class="ttdeci">DATA_TYPE roi_pool_1x1(const Tensor3D *input, int region_start_x, int region_end_x, int region_start_y, int region_end_y, int pz)</div><div class="ttdoc">Performs a roi pooling on a single output pixel. </div><div class="ttdef"><b>Definition:</b> <a href="roi__pooling__layer_8cl_source.xhtml#l00061">roi_pooling_layer.cl:61</a></div></div>
 415 <div class="ttc" id="helpers_8h_xhtml_a7e4940407322d6f0ccb8b6b86b856019"><div class="ttname"><a href="helpers_8h.xhtml#a7e4940407322d6f0ccb8b6b86b856019">vector_offset</a></div><div class="ttdeci">__global const uchar * vector_offset(const Vector *vec, int x)</div><div class="ttdoc">Get the pointer position of a Vector. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00292">helpers.h:292</a></div></div>
 416 <div class="ttc" id="namespacearm__compute_xhtml_a6452ac376d4adb94d93a93d678bb6757"><div class="ttname"><a href="namespacearm__compute.xhtml#a6452ac376d4adb94d93a93d678bb6757">arm_compute::round</a></div><div class="ttdeci">int round(float x, RoundingPolicy rounding_policy)</div><div class="ttdoc">Return a rounded value of x. </div></div>
 417 <div class="ttc" id="struct_tensor3_d_xhtml_acf52c23cbd7424606c10a606524e3e32"><div class="ttname"><a href="struct_tensor3_d.xhtml#acf52c23cbd7424606c10a606524e3e32">Tensor3D::ptr</a></div><div class="ttdeci">__global uchar * ptr</div><div class="ttdoc">Pointer to the starting postion of the buffer. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00153">helpers.h:153</a></div></div>
 418 </div><!-- fragment -->
 419 </div>
 420 </div>
 421 <a class="anchor" id="aa841846d3e0f01df176038026eab8e25"></a>
 422 <div class="memitem">
 423 <div class="memproto">
 424 <table class="mlabels">
 425   <tr>
 426   <td class="mlabels-left">
 427       <table class="memname">
 428         <tr>
 429           <td class="memname"><a class="el" href="convolution9x9_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> vec4_max </td>
 430           <td>(</td>
 431           <td class="paramtype">DATA_TYPE4&#160;</td>
 432           <td class="paramname"><em>vec</em></td><td>)</td>
 433           <td></td>
 434         </tr>
 435       </table>
 436   </td>
 437   <td class="mlabels-right">
 438 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 439   </tr>
 440 </table>
 441 </div><div class="memdoc">
 442
 443 <p>Definition at line <a class="el" href="roi__pooling__layer_8cl_source.xhtml#l00036">36</a> of file <a class="el" href="roi__pooling__layer_8cl_source.xhtml">roi_pooling_layer.cl</a>.</p>
 444
 445 <p>References <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, and <a class="el" href="fixed__point_8h_source.xhtml#l00093">VEC_DATA_TYPE</a>.</p>
 446
 447 <p>Referenced by <a class="el" href="roi__pooling__layer_8cl_source.xhtml#l00043">vec8_max()</a>.</p>
 448 <div class="fragment"><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;{</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;    <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 2)</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;    temp = fmax(vec.lo, vec.hi);</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;    return fmax(temp.x, temp.y);</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;}</div><div class="ttc" id="convolution3x3_8cl_xhtml_afb8c72ce35c4a1f4a2588d6573e54aa1"><div class="ttname"><a href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a></div><div class="ttdeci">#define DATA_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="convolution3x3_8cl_source.xhtml#l00027">convolution3x3.cl:27</a></div></div>
 449 <div class="ttc" id="fixed__point_8h_xhtml_a36f754c05b6fddf6df0d8d0a74f8159f"><div class="ttname"><a href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a></div><div class="ttdeci">#define VEC_DATA_TYPE(type, size)</div><div class="ttdef"><b>Definition:</b> <a href="fixed__point_8h_source.xhtml#l00093">fixed_point.h:93</a></div></div>
 450 </div><!-- fragment -->
 451 </div>
 452 </div>
 453 <a class="anchor" id="a03ae72789bf65b85136cb5356b4c189b"></a>
 454 <div class="memitem">
 455 <div class="memproto">
 456 <table class="mlabels">
 457   <tr>
 458   <td class="mlabels-left">
 459       <table class="memname">
 460         <tr>
 461           <td class="memname"><a class="el" href="convolution9x9_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> vec8_max </td>
 462           <td>(</td>
 463           <td class="paramtype">DATA_TYPE8&#160;</td>
 464           <td class="paramname"><em>vec</em></td><td>)</td>
 465           <td></td>
 466         </tr>
 467       </table>
 468   </td>
 469   <td class="mlabels-right">
 470 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 471   </tr>
 472 </table>
 473 </div><div class="memdoc">
 474
 475 <p>Definition at line <a class="el" href="roi__pooling__layer_8cl_source.xhtml#l00043">43</a> of file <a class="el" href="roi__pooling__layer_8cl_source.xhtml">roi_pooling_layer.cl</a>.</p>
 476
 477 <p>References <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, <a class="el" href="roi__pooling__layer_8cl_source.xhtml#l00036">vec4_max()</a>, and <a class="el" href="fixed__point_8h_source.xhtml#l00093">VEC_DATA_TYPE</a>.</p>
 478 <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="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 4)</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;    temp = fmax(vec.lo, vec.hi);</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;    return <a class="code" href="roi__pooling__layer_8cl.xhtml#aa841846d3e0f01df176038026eab8e25">vec4_max</a>(temp);</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;}</div><div class="ttc" id="convolution3x3_8cl_xhtml_afb8c72ce35c4a1f4a2588d6573e54aa1"><div class="ttname"><a href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a></div><div class="ttdeci">#define DATA_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="convolution3x3_8cl_source.xhtml#l00027">convolution3x3.cl:27</a></div></div>
 479 <div class="ttc" id="fixed__point_8h_xhtml_a36f754c05b6fddf6df0d8d0a74f8159f"><div class="ttname"><a href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a></div><div class="ttdeci">#define VEC_DATA_TYPE(type, size)</div><div class="ttdef"><b>Definition:</b> <a href="fixed__point_8h_source.xhtml#l00093">fixed_point.h:93</a></div></div>
 480 <div class="ttc" id="roi__pooling__layer_8cl_xhtml_aa841846d3e0f01df176038026eab8e25"><div class="ttname"><a href="roi__pooling__layer_8cl.xhtml#aa841846d3e0f01df176038026eab8e25">vec4_max</a></div><div class="ttdeci">DATA_TYPE vec4_max(DATA_TYPE4 vec)</div><div class="ttdef"><b>Definition:</b> <a href="roi__pooling__layer_8cl_source.xhtml#l00036">roi_pooling_layer.cl:36</a></div></div>
 481 </div><!-- fragment -->
 482 </div>
 483 </div>
 484 </div><!-- contents -->
 485 </div><!-- doc-content -->
 486 <!-- start footer part -->
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 488   <ul>
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