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gerrit-public.fairphone.software / platform / external / ComputeLibrary / 664d833b9d7b569db60b0f6d93e80f91f2c07c39 / . / documentation / accumulate_8cl.xhtml
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Anthony Barbier46d59272017-05-04 09:15:15 +0100[diff] [blame]43 &#160;<span id="projectnumber">17.05</span>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]44 </div>
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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>
126Functions</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>
495 <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="accumulate_8cl.xhtml">accumulate.cl</a></li>
Anthony Barbier46d59272017-05-04 09:15:15 +0100[diff] [blame]496 <li class="footer">Generated on Wed May 3 2017 17:20:04 for ARM Compute Library by
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498 <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.11 </li>
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