documentation/accumulate_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">accumulate.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="accumulate_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:a00e540076dd545ad59ac7482f8cdf514"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="accumulate_8cl.xhtml#a00e540076dd545ad59ac7482f8cdf514">accumulate</a> (__global uchar *input_ptr, uint input_stride_x, uint input_step_x, uint input_stride_y, uint input_step_y, uint input_offset_first_element_in_bytes, __global uchar *accu_ptr, uint accu_stride_x, uint accu_step_x, uint accu_stride_y, uint accu_step_y, uint accu_offset_first_element_in_bytes)</td></tr>
 128 <tr class="memdesc:a00e540076dd545ad59ac7482f8cdf514"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function accumulates an input image into output image.  <a href="#a00e540076dd545ad59ac7482f8cdf514">More...</a><br /></td></tr>
 129 <tr class="separator:a00e540076dd545ad59ac7482f8cdf514"><td class="memSeparator" colspan="2">&#160;</td></tr>
 130 <tr class="memitem:ab64020e40663a4356d6037079d7292fb"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="accumulate_8cl.xhtml#ab64020e40663a4356d6037079d7292fb">accumulate_weighted</a> (__global uchar *input_ptr, uint input_stride_x, uint input_step_x, uint input_stride_y, uint input_step_y, uint input_offset_first_element_in_bytes, __global uchar *accu_ptr, uint accu_stride_x, uint accu_step_x, uint accu_stride_y, uint accu_step_y, uint accu_offset_first_element_in_bytes, const float alpha)</td></tr>
 131 <tr class="memdesc:ab64020e40663a4356d6037079d7292fb"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function accumulates a weighted value from an input image to an output image.  <a href="#ab64020e40663a4356d6037079d7292fb">More...</a><br /></td></tr>
 132 <tr class="separator:ab64020e40663a4356d6037079d7292fb"><td class="memSeparator" colspan="2">&#160;</td></tr>
 133 <tr class="memitem:aa6efbf07a1932e211879a0df54e9f50f"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="accumulate_8cl.xhtml#aa6efbf07a1932e211879a0df54e9f50f">accumulate_squared</a> (__global uchar *input_ptr, uint input_stride_x, uint input_step_x, uint input_stride_y, uint input_step_y, uint input_offset_first_element_in_bytes, __global uchar *accu_ptr, uint accu_stride_x, uint accu_step_x, uint accu_stride_y, uint accu_step_y, uint accu_offset_first_element_in_bytes, const uint shift)</td></tr>
 134 <tr class="memdesc:aa6efbf07a1932e211879a0df54e9f50f"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function accumulates a squared value from an input image to an output image.  <a href="#aa6efbf07a1932e211879a0df54e9f50f">More...</a><br /></td></tr>
 135 <tr class="separator:aa6efbf07a1932e211879a0df54e9f50f"><td class="memSeparator" colspan="2">&#160;</td></tr>
 136 </table>
 137 <h2 class="groupheader">Function Documentation</h2>
 138 <a class="anchor" id="a00e540076dd545ad59ac7482f8cdf514"></a>
 139 <div class="memitem">
 140 <div class="memproto">
 141       <table class="memname">
 142         <tr>
 143           <td class="memname">__kernel void accumulate </td>
 144           <td>(</td>
 145           <td class="paramtype">__global uchar *&#160;</td>
 146           <td class="paramname"><em>input_ptr</em>, </td>
 147         </tr>
 148         <tr>
 149           <td class="paramkey"></td>
 150           <td></td>
 151           <td class="paramtype">uint&#160;</td>
 152           <td class="paramname"><em>input_stride_x</em>, </td>
 153         </tr>
 154         <tr>
 155           <td class="paramkey"></td>
 156           <td></td>
 157           <td class="paramtype">uint&#160;</td>
 158           <td class="paramname"><em>input_step_x</em>, </td>
 159         </tr>
 160         <tr>
 161           <td class="paramkey"></td>
 162           <td></td>
 163           <td class="paramtype">uint&#160;</td>
 164           <td class="paramname"><em>input_stride_y</em>, </td>
 165         </tr>
 166         <tr>
 167           <td class="paramkey"></td>
 168           <td></td>
 169           <td class="paramtype">uint&#160;</td>
 170           <td class="paramname"><em>input_step_y</em>, </td>
 171         </tr>
 172         <tr>
 173           <td class="paramkey"></td>
 174           <td></td>
 175           <td class="paramtype">uint&#160;</td>
 176           <td class="paramname"><em>input_offset_first_element_in_bytes</em>, </td>
 177         </tr>
 178         <tr>
 179           <td class="paramkey"></td>
 180           <td></td>
 181           <td class="paramtype">__global uchar *&#160;</td>
 182           <td class="paramname"><em>accu_ptr</em>, </td>
 183         </tr>
 184         <tr>
 185           <td class="paramkey"></td>
 186           <td></td>
 187           <td class="paramtype">uint&#160;</td>
 188           <td class="paramname"><em>accu_stride_x</em>, </td>
 189         </tr>
 190         <tr>
 191           <td class="paramkey"></td>
 192           <td></td>
 193           <td class="paramtype">uint&#160;</td>
 194           <td class="paramname"><em>accu_step_x</em>, </td>
 195         </tr>
 196         <tr>
 197           <td class="paramkey"></td>
 198           <td></td>
 199           <td class="paramtype">uint&#160;</td>
 200           <td class="paramname"><em>accu_stride_y</em>, </td>
 201         </tr>
 202         <tr>
 203           <td class="paramkey"></td>
 204           <td></td>
 205           <td class="paramtype">uint&#160;</td>
 206           <td class="paramname"><em>accu_step_y</em>, </td>
 207         </tr>
 208         <tr>
 209           <td class="paramkey"></td>
 210           <td></td>
 211           <td class="paramtype">uint&#160;</td>
 212           <td class="paramname"><em>accu_offset_first_element_in_bytes</em>&#160;</td>
 213         </tr>
 214         <tr>
 215           <td></td>
 216           <td>)</td>
 217           <td></td><td></td>
 218         </tr>
 219       </table>
 220 </div><div class="memdoc">
 221
 222 <p>This function accumulates an input image into output image. </p>
 223 <dl class="params"><dt>Parameters</dt><dd>
 224   <table class="params">
 225     <tr><td class="paramdir">[in]</td><td class="paramname">input_ptr</td><td>Pointer to the source image. Supported data types: U8 </td></tr>
 226     <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>
 227     <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>
 228     <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>
 229     <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>
 230     <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 source image </td></tr>
 231     <tr><td class="paramdir">[out]</td><td class="paramname">accu_ptr</td><td>Pointer to the destination image. Supported data types: S16 </td></tr>
 232     <tr><td class="paramdir">[in]</td><td class="paramname">accu_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
 233     <tr><td class="paramdir">[in]</td><td class="paramname">accu_step_x</td><td>accu_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
 234     <tr><td class="paramdir">[in]</td><td class="paramname">accu_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
 235     <tr><td class="paramdir">[in]</td><td class="paramname">accu_step_y</td><td>accu_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
 236     <tr><td class="paramdir">[in]</td><td class="paramname">accu_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr>
 237   </table>
 238   </dd>
 239 </dl>
 240
 241 <p>Definition at line <a class="el" href="accumulate_8cl_source.xhtml#l00041">41</a> of file <a class="el" href="accumulate_8cl_source.xhtml">accumulate.cl</a>.</p>
 242
 243 <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#l00097">Image::ptr</a>.</p>
 244
 245 <p>Referenced by <a class="el" href="arm__compute_2core_2_utils_8h_source.xhtml#l00419">arm_compute::calculate_matrix_scale()</a>, <a class="el" href="arm__compute_2core_2_utils_8h_source.xhtml#l00435">arm_compute::data_type_for_convolution()</a>, <a class="el" href="arm__compute_2core_2_utils_8h_source.xhtml#l00491">arm_compute::data_type_for_convolution_matrix()</a>, <a class="el" href="_tensor_shape_8h_source.xhtml#l00068">TensorShape::total_size()</a>, and <a class="el" href="_tensor_shape_8h_source.xhtml#l00082">TensorShape::total_size_upper()</a>.</p>
 246 <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;    <span class="comment">// Get pixels pointer</span></div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> input = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(input);</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> accu  = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(accu);</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;    <span class="comment">// Load data</span></div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    uchar16 in_data   = vload16(0, input.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;    short16 accu_data = vload16(0, (__global <span class="keywordtype">short</span> *)accu.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;    <span class="comment">// Perform accumulation</span></div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    short16 res = add_sat(convert_short16(in_data), accu_data);</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    <span class="comment">// Store result</span></div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    vstore16(res, 0, (__global <span class="keywordtype">short</span> *)accu.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;}</div><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>
 247 <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>
 248 <div class="ttc" id="struct_image_xhtml_acf52c23cbd7424606c10a606524e3e32"><div class="ttname"><a href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">Image::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#l00097">helpers.h:97</a></div></div>
 249 </div><!-- fragment -->
 250 </div>
 251 </div>
 252 <a class="anchor" id="aa6efbf07a1932e211879a0df54e9f50f"></a>
 253 <div class="memitem">
 254 <div class="memproto">
 255       <table class="memname">
 256         <tr>
 257           <td class="memname">__kernel void accumulate_squared </td>
 258           <td>(</td>
 259           <td class="paramtype">__global uchar *&#160;</td>
 260           <td class="paramname"><em>input_ptr</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_stride_x</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_step_x</em>, </td>
 273         </tr>
 274         <tr>
 275           <td class="paramkey"></td>
 276           <td></td>
 277           <td class="paramtype">uint&#160;</td>
 278           <td class="paramname"><em>input_stride_y</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>input_step_y</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>input_offset_first_element_in_bytes</em>, </td>
 291         </tr>
 292         <tr>
 293           <td class="paramkey"></td>
 294           <td></td>
 295           <td class="paramtype">__global uchar *&#160;</td>
 296           <td class="paramname"><em>accu_ptr</em>, </td>
 297         </tr>
 298         <tr>
 299           <td class="paramkey"></td>
 300           <td></td>
 301           <td class="paramtype">uint&#160;</td>
 302           <td class="paramname"><em>accu_stride_x</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>accu_step_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>accu_stride_y</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>accu_step_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>accu_offset_first_element_in_bytes</em>, </td>
 327         </tr>
 328         <tr>
 329           <td class="paramkey"></td>
 330           <td></td>
 331           <td class="paramtype">const uint&#160;</td>
 332           <td class="paramname"><em>shift</em>&#160;</td>
 333         </tr>
 334         <tr>
 335           <td></td>
 336           <td>)</td>
 337           <td></td><td></td>
 338         </tr>
 339       </table>
 340 </div><div class="memdoc">
 341
 342 <p>This function accumulates a squared value from an input image to an output image. </p>
 343 <dl class="params"><dt>Parameters</dt><dd>
 344   <table class="params">
 345     <tr><td class="paramdir">[in]</td><td class="paramname">input_ptr</td><td>Pointer to the source image. Supported data types: U8 </td></tr>
 346     <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>
 347     <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>
 348     <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>
 349     <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>
 350     <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 source image </td></tr>
 351     <tr><td class="paramdir">[out]</td><td class="paramname">accu_ptr</td><td>Pointer to the destination image. Supported data types: S16 </td></tr>
 352     <tr><td class="paramdir">[in]</td><td class="paramname">accu_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
 353     <tr><td class="paramdir">[in]</td><td class="paramname">accu_step_x</td><td>accu_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
 354     <tr><td class="paramdir">[in]</td><td class="paramname">accu_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
 355     <tr><td class="paramdir">[in]</td><td class="paramname">accu_step_y</td><td>accu_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
 356     <tr><td class="paramdir">[in]</td><td class="paramname">accu_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr>
 357     <tr><td class="paramdir">[in]</td><td class="paramname">shift</td><td>The U32 scalar value with a value in the range of 0 to 15 </td></tr>
 358   </table>
 359   </dd>
 360 </dl>
 361
 362 <p>Definition at line <a class="el" href="accumulate_8cl_source.xhtml#l00112">112</a> of file <a class="el" href="accumulate_8cl_source.xhtml">accumulate.cl</a>.</p>
 363
 364 <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#l00097">Image::ptr</a>.</p>
 365 <div class="fragment"><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;{</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;    <span class="comment">// Get pixels pointer</span></div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> input = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(input);</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> accu  = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(accu);</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;    <span class="comment">// Load data</span></div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;    ushort16 in_data   = convert_ushort16(vload16(0, input.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>));</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;    uint16   accu_data = convert_uint16(vload16(0, (__global <span class="keywordtype">short</span> *)accu.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>));</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;    <span class="comment">// Calculate squared accumulation</span></div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    short16 res = convert_short16_sat(accu_data + convert_uint16((in_data * in_data) &gt;&gt; shift));</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;    <span class="comment">// Store result</span></div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;    vstore16(res, 0, (__global <span class="keywordtype">short</span> *)accu.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;}</div><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>
 366 <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>
 367 <div class="ttc" id="struct_image_xhtml_acf52c23cbd7424606c10a606524e3e32"><div class="ttname"><a href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">Image::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#l00097">helpers.h:97</a></div></div>
 368 </div><!-- fragment -->
 369 </div>
 370 </div>
 371 <a class="anchor" id="ab64020e40663a4356d6037079d7292fb"></a>
 372 <div class="memitem">
 373 <div class="memproto">
 374       <table class="memname">
 375         <tr>
 376           <td class="memname">__kernel void accumulate_weighted </td>
 377           <td>(</td>
 378           <td class="paramtype">__global uchar *&#160;</td>
 379           <td class="paramname"><em>input_ptr</em>, </td>
 380         </tr>
 381         <tr>
 382           <td class="paramkey"></td>
 383           <td></td>
 384           <td class="paramtype">uint&#160;</td>
 385           <td class="paramname"><em>input_stride_x</em>, </td>
 386         </tr>
 387         <tr>
 388           <td class="paramkey"></td>
 389           <td></td>
 390           <td class="paramtype">uint&#160;</td>
 391           <td class="paramname"><em>input_step_x</em>, </td>
 392         </tr>
 393         <tr>
 394           <td class="paramkey"></td>
 395           <td></td>
 396           <td class="paramtype">uint&#160;</td>
 397           <td class="paramname"><em>input_stride_y</em>, </td>
 398         </tr>
 399         <tr>
 400           <td class="paramkey"></td>
 401           <td></td>
 402           <td class="paramtype">uint&#160;</td>
 403           <td class="paramname"><em>input_step_y</em>, </td>
 404         </tr>
 405         <tr>
 406           <td class="paramkey"></td>
 407           <td></td>
 408           <td class="paramtype">uint&#160;</td>
 409           <td class="paramname"><em>input_offset_first_element_in_bytes</em>, </td>
 410         </tr>
 411         <tr>
 412           <td class="paramkey"></td>
 413           <td></td>
 414           <td class="paramtype">__global uchar *&#160;</td>
 415           <td class="paramname"><em>accu_ptr</em>, </td>
 416         </tr>
 417         <tr>
 418           <td class="paramkey"></td>
 419           <td></td>
 420           <td class="paramtype">uint&#160;</td>
 421           <td class="paramname"><em>accu_stride_x</em>, </td>
 422         </tr>
 423         <tr>
 424           <td class="paramkey"></td>
 425           <td></td>
 426           <td class="paramtype">uint&#160;</td>
 427           <td class="paramname"><em>accu_step_x</em>, </td>
 428         </tr>
 429         <tr>
 430           <td class="paramkey"></td>
 431           <td></td>
 432           <td class="paramtype">uint&#160;</td>
 433           <td class="paramname"><em>accu_stride_y</em>, </td>
 434         </tr>
 435         <tr>
 436           <td class="paramkey"></td>
 437           <td></td>
 438           <td class="paramtype">uint&#160;</td>
 439           <td class="paramname"><em>accu_step_y</em>, </td>
 440         </tr>
 441         <tr>
 442           <td class="paramkey"></td>
 443           <td></td>
 444           <td class="paramtype">uint&#160;</td>
 445           <td class="paramname"><em>accu_offset_first_element_in_bytes</em>, </td>
 446         </tr>
 447         <tr>
 448           <td class="paramkey"></td>
 449           <td></td>
 450           <td class="paramtype">const float&#160;</td>
 451           <td class="paramname"><em>alpha</em>&#160;</td>
 452         </tr>
 453         <tr>
 454           <td></td>
 455           <td>)</td>
 456           <td></td><td></td>
 457         </tr>
 458       </table>
 459 </div><div class="memdoc">
 460
 461 <p>This function accumulates a weighted value from an input image to an output image. </p>
 462 <dl class="params"><dt>Parameters</dt><dd>
 463   <table class="params">
 464     <tr><td class="paramdir">[in]</td><td class="paramname">input_ptr</td><td>Pointer to the source image. Supported data types: U8 </td></tr>
 465     <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>
 466     <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>
 467     <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>
 468     <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>
 469     <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 source image </td></tr>
 470     <tr><td class="paramdir">[out]</td><td class="paramname">accu_ptr</td><td>Pointer to the destination image. Supported data types: S16 </td></tr>
 471     <tr><td class="paramdir">[in]</td><td class="paramname">accu_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
 472     <tr><td class="paramdir">[in]</td><td class="paramname">accu_step_x</td><td>accu_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
 473     <tr><td class="paramdir">[in]</td><td class="paramname">accu_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
 474     <tr><td class="paramdir">[in]</td><td class="paramname">accu_step_y</td><td>accu_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
 475     <tr><td class="paramdir">[in]</td><td class="paramname">accu_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr>
 476     <tr><td class="paramdir">[in]</td><td class="paramname">alpha</td><td>The float scalar value with a value in the range of 0 to 1 </td></tr>
 477   </table>
 478   </dd>
 479 </dl>
 480
 481 <p>Definition at line <a class="el" href="accumulate_8cl_source.xhtml#l00076">76</a> of file <a class="el" href="accumulate_8cl_source.xhtml">accumulate.cl</a>.</p>
 482
 483 <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#l00097">Image::ptr</a>.</p>
 484 <div class="fragment"><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;{</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;    <span class="comment">// Get pixels pointer</span></div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> input = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(input);</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> accu  = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(accu);</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;    <span class="comment">// Load data</span></div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    <span class="keyword">const</span> float16 in_data   = convert_float16(vload16(0, input.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>));</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    <span class="keyword">const</span> float16 accu_data = convert_float16(vload16(0, accu.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>));</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;    <span class="comment">// Calculate weighted accumulation</span></div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    <span class="keyword">const</span> uchar16 res = convert_uchar16((1.0f - alpha) * accu_data + alpha * in_data);</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    <span class="comment">// Store result</span></div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    vstore16(res, 0, accu.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;}</div><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>
 485 <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>
 486 <div class="ttc" id="struct_image_xhtml_acf52c23cbd7424606c10a606524e3e32"><div class="ttname"><a href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">Image::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#l00097">helpers.h:97</a></div></div>
 487 </div><!-- fragment -->
 488 </div>
 489 </div>
 490 </div><!-- contents -->
 491 </div><!-- doc-content -->
 492 <!-- start footer part -->
 493 <div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
 494   <ul>
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