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gerrit-public.fairphone.software / platform / external / ComputeLibrary / 8938bd3f40ea62ff56d6ed4e2db0a8aee34dd64a / . / documentation / integral__image_8cl.xhtml
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Anthony Barbierdbdab852017-06-23 15:42:00 +0100[diff] [blame]40 <div id="projectname">Compute Library
Kaizen8938bd32017-09-28 14:38:23 +0100[diff] [blame^]41 &#160;<span id="projectnumber">17.09</span>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]42 </div>
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115<a href="#func-members">Functions</a> </div>
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117<div class="title">integral_image.cl File Reference</div> </div>
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119<div class="contents">
Kaizen8938bd32017-09-28 14:38:23 +0100[diff] [blame^]120<div class="textblock"><code>#include &quot;<a class="el" href="helpers_8h_source.xhtml">helpers.h</a>&quot;</code><br/>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]121</div>
122<p><a href="integral__image_8cl_source.xhtml">Go to the source code of this file.</a></p>
123<table class="memberdecls">
124<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
125Functions</h2></td></tr>
126<tr class="memitem:a472be6fbc82158f3eb807d9e52e3254b"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="integral__image_8cl.xhtml#a472be6fbc82158f3eb807d9e52e3254b">integral_horizontal</a> (__global uchar *src_ptr, uint src_stride_x, uint src_step_x, uint src_stride_y, uint src_step_y, uint src_offset_first_element_in_bytes, __global uchar *dst_ptr, uint dst_stride_x, uint dst_step_x, uint dst_stride_y, uint dst_step_y, uint dst_offset_first_element_in_bytes)</td></tr>
Kaizen8938bd32017-09-28 14:38:23 +0100[diff] [blame^]127<tr class="memdesc:a472be6fbc82158f3eb807d9e52e3254b"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function computes the horizontal integral of the image. <a href="#a472be6fbc82158f3eb807d9e52e3254b">More...</a><br/></td></tr>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]128<tr class="separator:a472be6fbc82158f3eb807d9e52e3254b"><td class="memSeparator" colspan="2">&#160;</td></tr>
129<tr class="memitem:ae909fdef8be348f0da3b730289410433"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="integral__image_8cl.xhtml#ae909fdef8be348f0da3b730289410433">integral_vertical</a> (__global uchar *src_ptr, uint src_stride_x, uint src_step_x, uint src_stride_y, uint src_step_y, uint src_offset_first_element_in_bytes, uint height)</td></tr>
Kaizen8938bd32017-09-28 14:38:23 +0100[diff] [blame^]130<tr class="memdesc:ae909fdef8be348f0da3b730289410433"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function computes the vertical integral of the image. <a href="#ae909fdef8be348f0da3b730289410433">More...</a><br/></td></tr>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]131<tr class="separator:ae909fdef8be348f0da3b730289410433"><td class="memSeparator" colspan="2">&#160;</td></tr>
132</table>
133<h2 class="groupheader">Function Documentation</h2>
134<a class="anchor" id="a472be6fbc82158f3eb807d9e52e3254b"></a>
135<div class="memitem">
136<div class="memproto">
137 <table class="memname">
138 <tr>
139 <td class="memname">__kernel void integral_horizontal </td>
140 <td>(</td>
141 <td class="paramtype">__global uchar *&#160;</td>
142 <td class="paramname"><em>src_ptr</em>, </td>
143 </tr>
144 <tr>
145 <td class="paramkey"></td>
146 <td></td>
147 <td class="paramtype">uint&#160;</td>
148 <td class="paramname"><em>src_stride_x</em>, </td>
149 </tr>
150 <tr>
151 <td class="paramkey"></td>
152 <td></td>
153 <td class="paramtype">uint&#160;</td>
154 <td class="paramname"><em>src_step_x</em>, </td>
155 </tr>
156 <tr>
157 <td class="paramkey"></td>
158 <td></td>
159 <td class="paramtype">uint&#160;</td>
160 <td class="paramname"><em>src_stride_y</em>, </td>
161 </tr>
162 <tr>
163 <td class="paramkey"></td>
164 <td></td>
165 <td class="paramtype">uint&#160;</td>
166 <td class="paramname"><em>src_step_y</em>, </td>
167 </tr>
168 <tr>
169 <td class="paramkey"></td>
170 <td></td>
171 <td class="paramtype">uint&#160;</td>
172 <td class="paramname"><em>src_offset_first_element_in_bytes</em>, </td>
173 </tr>
174 <tr>
175 <td class="paramkey"></td>
176 <td></td>
177 <td class="paramtype">__global uchar *&#160;</td>
178 <td class="paramname"><em>dst_ptr</em>, </td>
179 </tr>
180 <tr>
181 <td class="paramkey"></td>
182 <td></td>
183 <td class="paramtype">uint&#160;</td>
184 <td class="paramname"><em>dst_stride_x</em>, </td>
185 </tr>
186 <tr>
187 <td class="paramkey"></td>
188 <td></td>
189 <td class="paramtype">uint&#160;</td>
190 <td class="paramname"><em>dst_step_x</em>, </td>
191 </tr>
192 <tr>
193 <td class="paramkey"></td>
194 <td></td>
195 <td class="paramtype">uint&#160;</td>
196 <td class="paramname"><em>dst_stride_y</em>, </td>
197 </tr>
198 <tr>
199 <td class="paramkey"></td>
200 <td></td>
201 <td class="paramtype">uint&#160;</td>
202 <td class="paramname"><em>dst_step_y</em>, </td>
203 </tr>
204 <tr>
205 <td class="paramkey"></td>
206 <td></td>
207 <td class="paramtype">uint&#160;</td>
208 <td class="paramname"><em>dst_offset_first_element_in_bytes</em>&#160;</td>
209 </tr>
210 <tr>
211 <td></td>
212 <td>)</td>
213 <td></td><td></td>
214 </tr>
215 </table>
216</div><div class="memdoc">
217
218<p>This function computes the horizontal integral of the image. </p>
219<dl class="params"><dt>Parameters</dt><dd>
220 <table class="params">
221 <tr><td class="paramdir">[in]</td><td class="paramname">src_ptr</td><td>Pointer to the source image. Supported data types: U8 </td></tr>
222 <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
223 <tr><td class="paramdir">[in]</td><td class="paramname">src_step_x</td><td>src_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
224 <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
225 <tr><td class="paramdir">[in]</td><td class="paramname">src_step_y</td><td>src_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
226 <tr><td class="paramdir">[in]</td><td class="paramname">src_offset_first_element_in_bytes</td><td>The offset of the first element in the source image </td></tr>
227 <tr><td class="paramdir">[out]</td><td class="paramname">dst_ptr</td><td>Pointer to the destination image. Supported data types: U32 </td></tr>
228 <tr><td class="paramdir">[in]</td><td class="paramname">dst_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
229 <tr><td class="paramdir">[in]</td><td class="paramname">dst_step_x</td><td>dst_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
230 <tr><td class="paramdir">[in]</td><td class="paramname">dst_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
231 <tr><td class="paramdir">[in]</td><td class="paramname">dst_step_y</td><td>dst_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
232 <tr><td class="paramdir">[in]</td><td class="paramname">dst_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr>
233 </table>
234 </dd>
235</dl>
236
237<p>Definition at line <a class="el" href="integral__image_8cl_source.xhtml#l00041">41</a> of file <a class="el" href="integral__image_8cl_source.xhtml">integral_image.cl</a>.</p>
238
Kaizen8938bd32017-09-28 14:38:23 +0100[diff] [blame^]239<p>References <a class="el" href="helpers_8h_source.xhtml#l00093">CONVERT_TO_IMAGE_STRUCT</a>, and <a class="el" href="helpers_8h_source.xhtml#l00292">offset()</a>.</p>
240<div class="fragment"><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;{</div>
241<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> src = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src);</div>
242<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> dst = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(dst);</div>
243<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;</div>
244<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; uint prev = 0;</div>
245<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;</div>
246<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="keywordflow">for</span>(uint j = 0; j &lt; src_step_x; j += 16)</div>
247<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; {</div>
248<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; barrier(CLK_GLOBAL_MEM_FENCE);</div>
249<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; uint16 res = convert_uint16(vload16(0, <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, j, 0)));</div>
250<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; res.s0 += prev;</div>
251<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; res.s1 += res.s0;</div>
252<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; res.s2 += res.s1;</div>
253<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; res.s3 += res.s2;</div>
254<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; res.s4 += res.s3;</div>
255<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; res.s5 += res.s4;</div>
256<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; res.s6 += res.s5;</div>
257<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; res.s7 += res.s6;</div>
258<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; res.s8 += res.s7;</div>
259<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; res.s9 += res.s8;</div>
260<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; res.sA += res.s9;</div>
261<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; res.sB += res.sA;</div>
262<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; res.sC += res.sB;</div>
263<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; res.sD += res.sC;</div>
264<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; res.sE += res.sD;</div>
265<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; res.sF += res.sE;</div>
266<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; prev = res.sF;</div>
267<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; vstore16(res, 0, (__global uint *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;dst, j, 0));</div>
268<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; }</div>
269<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160;}</div>
270<div class="ttc" id="helpers_8h_xhtml_a009469e4d9b8fce3b6d5e97d2077827d"><div class="ttname"><a href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a></div><div class="ttdeci">__global uchar * offset(const Image *img, int x, int y)</div><div class="ttdoc">Get the pointer position of a Image. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00292">helpers.h:292</a></div></div>
271<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#l00093">helpers.h:93</a></div></div>
272<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#l00131">helpers.h:131</a></div></div>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]273</div><!-- fragment -->
274</div>
275</div>
276<a class="anchor" id="ae909fdef8be348f0da3b730289410433"></a>
277<div class="memitem">
278<div class="memproto">
279 <table class="memname">
280 <tr>
281 <td class="memname">__kernel void integral_vertical </td>
282 <td>(</td>
283 <td class="paramtype">__global uchar *&#160;</td>
284 <td class="paramname"><em>src_ptr</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>src_stride_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>src_step_x</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>src_stride_y</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>src_step_y</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>src_offset_first_element_in_bytes</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>height</em>&#160;</td>
321 </tr>
322 <tr>
323 <td></td>
324 <td>)</td>
325 <td></td><td></td>
326 </tr>
327 </table>
328</div><div class="memdoc">
329
330<p>This function computes the vertical integral of the image. </p>
331<dl class="params"><dt>Parameters</dt><dd>
332 <table class="params">
333 <tr><td class="paramdir">[in,out]</td><td class="paramname">src_ptr</td><td>Pointer to the source image. Supported data types: U32 </td></tr>
334 <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
335 <tr><td class="paramdir">[in]</td><td class="paramname">src_step_x</td><td>src_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
336 <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
337 <tr><td class="paramdir">[in]</td><td class="paramname">src_step_y</td><td>src_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
338 <tr><td class="paramdir">[in]</td><td class="paramname">src_offset_first_element_in_bytes</td><td>The offset of the first element in the source image </td></tr>
339 <tr><td class="paramdir">[in]</td><td class="paramname">height</td><td><a class="el" href="struct_image.xhtml" title="Structure to hold Image information. ">Image</a> height. </td></tr>
340 </table>
341 </dd>
342</dl>
343
344<p>Definition at line <a class="el" href="integral__image_8cl_source.xhtml#l00085">85</a> of file <a class="el" href="integral__image_8cl_source.xhtml">integral_image.cl</a>.</p>
345
Kaizen8938bd32017-09-28 14:38:23 +0100[diff] [blame^]346<p>References <a class="el" href="helpers_8h_source.xhtml#l00093">CONVERT_TO_IMAGE_STRUCT</a>, and <a class="el" href="helpers_8h_source.xhtml#l00292">offset()</a>.</p>
347<div class="fragment"><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;{</div>
348<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> src = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src);</div>
349<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;</div>
350<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; uint8 prev = vload8(0, (__global uint *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, 0, 0));</div>
351<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="keywordflow">for</span>(uint j = 1; j &lt; height; ++j)</div>
352<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; {</div>
353<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; barrier(CLK_GLOBAL_MEM_FENCE);</div>
354<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; uint8 res = vload8(0, (__global uint *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, 0, j));</div>
355<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; res += prev;</div>
356<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; vstore8(res, 0, (__global uint *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, 0, j));</div>
357<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; prev = res;</div>
358<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; }</div>
359<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160;}</div>
360<div class="ttc" id="helpers_8h_xhtml_a009469e4d9b8fce3b6d5e97d2077827d"><div class="ttname"><a href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a></div><div class="ttdeci">__global uchar * offset(const Image *img, int x, int y)</div><div class="ttdoc">Get the pointer position of a Image. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00292">helpers.h:292</a></div></div>
361<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#l00093">helpers.h:93</a></div></div>
362<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#l00131">helpers.h:131</a></div></div>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]363</div><!-- fragment -->
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367</div><!-- doc-content -->
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Kaizen8938bd32017-09-28 14:38:23 +0100[diff] [blame^]371 <li class="navelem"><a class="el" href="dir_55b5a5006e943fb664ff8cff3cfe7768.xhtml">src</a></li><li class="navelem"><a class="el" href="dir_f6c3ae42d7e27145d0a3c3e38ca1c000.xhtml">core</a></li><li class="navelem"><a class="el" href="dir_1b7ae9123c88e650426d50d95c19d414.xhtml">CL</a></li><li class="navelem"><a class="el" href="dir_b7c3d80b0dadb2139bc73b7161751c12.xhtml">cl_kernels</a></li><li class="navelem"><a class="el" href="integral__image_8cl.xhtml">integral_image.cl</a></li>
372 <li class="footer">Generated on Thu Sep 28 2017 14:37:53 for Compute Library by
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]373 <a href="http://www.doxygen.org/index.html">
Kaizen8938bd32017-09-28 14:38:23 +0100[diff] [blame^]374 <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.6 </li>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]375 </ul>
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