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114<div class="header">
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116<a href="#func-members">Functions</a> </div>
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118<div class="title">integral_image.cl File Reference</div> </div>
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120<div class="contents">
121<div class="textblock"><code>#include &quot;<a class="el" href="helpers_8h_source.xhtml">helpers.h</a>&quot;</code><br />
122</div>
123<p><a href="integral__image_8cl_source.xhtml">Go to the source code of this file.</a></p>
124<table class="memberdecls">
125<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
126Functions</h2></td></tr>
127<tr class="memitem:a472be6fbc82158f3eb807d9e52e3254b"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="integral__image_8cl.xhtml#a472be6fbc82158f3eb807d9e52e3254b">integral_horizontal</a> (__global uchar *src_ptr, uint src_stride_x, uint src_step_x, uint src_stride_y, uint src_step_y, uint src_offset_first_element_in_bytes, __global uchar *dst_ptr, uint dst_stride_x, uint dst_step_x, uint dst_stride_y, uint dst_step_y, uint dst_offset_first_element_in_bytes)</td></tr>
128<tr class="memdesc:a472be6fbc82158f3eb807d9e52e3254b"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function computes the horizontal integral of the image. <a href="#a472be6fbc82158f3eb807d9e52e3254b">More...</a><br /></td></tr>
129<tr class="separator:a472be6fbc82158f3eb807d9e52e3254b"><td class="memSeparator" colspan="2">&#160;</td></tr>
130<tr class="memitem:ae909fdef8be348f0da3b730289410433"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="integral__image_8cl.xhtml#ae909fdef8be348f0da3b730289410433">integral_vertical</a> (__global uchar *src_ptr, uint src_stride_x, uint src_step_x, uint src_stride_y, uint src_step_y, uint src_offset_first_element_in_bytes, uint height)</td></tr>
131<tr class="memdesc:ae909fdef8be348f0da3b730289410433"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function computes the vertical integral of the image. <a href="#ae909fdef8be348f0da3b730289410433">More...</a><br /></td></tr>
132<tr class="separator:ae909fdef8be348f0da3b730289410433"><td class="memSeparator" colspan="2">&#160;</td></tr>
133</table>
134<h2 class="groupheader">Function Documentation</h2>
135<a class="anchor" id="a472be6fbc82158f3eb807d9e52e3254b"></a>
136<div class="memitem">
137<div class="memproto">
138 <table class="memname">
139 <tr>
140 <td class="memname">__kernel void integral_horizontal </td>
141 <td>(</td>
142 <td class="paramtype">__global uchar *&#160;</td>
143 <td class="paramname"><em>src_ptr</em>, </td>
144 </tr>
145 <tr>
146 <td class="paramkey"></td>
147 <td></td>
148 <td class="paramtype">uint&#160;</td>
149 <td class="paramname"><em>src_stride_x</em>, </td>
150 </tr>
151 <tr>
152 <td class="paramkey"></td>
153 <td></td>
154 <td class="paramtype">uint&#160;</td>
155 <td class="paramname"><em>src_step_x</em>, </td>
156 </tr>
157 <tr>
158 <td class="paramkey"></td>
159 <td></td>
160 <td class="paramtype">uint&#160;</td>
161 <td class="paramname"><em>src_stride_y</em>, </td>
162 </tr>
163 <tr>
164 <td class="paramkey"></td>
165 <td></td>
166 <td class="paramtype">uint&#160;</td>
167 <td class="paramname"><em>src_step_y</em>, </td>
168 </tr>
169 <tr>
170 <td class="paramkey"></td>
171 <td></td>
172 <td class="paramtype">uint&#160;</td>
173 <td class="paramname"><em>src_offset_first_element_in_bytes</em>, </td>
174 </tr>
175 <tr>
176 <td class="paramkey"></td>
177 <td></td>
178 <td class="paramtype">__global uchar *&#160;</td>
179 <td class="paramname"><em>dst_ptr</em>, </td>
180 </tr>
181 <tr>
182 <td class="paramkey"></td>
183 <td></td>
184 <td class="paramtype">uint&#160;</td>
185 <td class="paramname"><em>dst_stride_x</em>, </td>
186 </tr>
187 <tr>
188 <td class="paramkey"></td>
189 <td></td>
190 <td class="paramtype">uint&#160;</td>
191 <td class="paramname"><em>dst_step_x</em>, </td>
192 </tr>
193 <tr>
194 <td class="paramkey"></td>
195 <td></td>
196 <td class="paramtype">uint&#160;</td>
197 <td class="paramname"><em>dst_stride_y</em>, </td>
198 </tr>
199 <tr>
200 <td class="paramkey"></td>
201 <td></td>
202 <td class="paramtype">uint&#160;</td>
203 <td class="paramname"><em>dst_step_y</em>, </td>
204 </tr>
205 <tr>
206 <td class="paramkey"></td>
207 <td></td>
208 <td class="paramtype">uint&#160;</td>
209 <td class="paramname"><em>dst_offset_first_element_in_bytes</em>&#160;</td>
210 </tr>
211 <tr>
212 <td></td>
213 <td>)</td>
214 <td></td><td></td>
215 </tr>
216 </table>
217</div><div class="memdoc">
218
219<p>This function computes the horizontal integral of the image. </p>
220<dl class="params"><dt>Parameters</dt><dd>
221 <table class="params">
222 <tr><td class="paramdir">[in]</td><td class="paramname">src_ptr</td><td>Pointer to the source image. Supported data types: U8 </td></tr>
223 <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
224 <tr><td class="paramdir">[in]</td><td class="paramname">src_step_x</td><td>src_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
225 <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
226 <tr><td class="paramdir">[in]</td><td class="paramname">src_step_y</td><td>src_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
227 <tr><td class="paramdir">[in]</td><td class="paramname">src_offset_first_element_in_bytes</td><td>The offset of the first element in the source image </td></tr>
228 <tr><td class="paramdir">[out]</td><td class="paramname">dst_ptr</td><td>Pointer to the destination image. Supported data types: U32 </td></tr>
229 <tr><td class="paramdir">[in]</td><td class="paramname">dst_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
230 <tr><td class="paramdir">[in]</td><td class="paramname">dst_step_x</td><td>dst_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
231 <tr><td class="paramdir">[in]</td><td class="paramname">dst_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
232 <tr><td class="paramdir">[in]</td><td class="paramname">dst_step_y</td><td>dst_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
233 <tr><td class="paramdir">[in]</td><td class="paramname">dst_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr>
234 </table>
235 </dd>
236</dl>
237
238<p>Definition at line <a class="el" href="integral__image_8cl_source.xhtml#l00041">41</a> of file <a class="el" href="integral__image_8cl_source.xhtml">integral_image.cl</a>.</p>
239
240<p>References <a class="el" href="helpers_8h_source.xhtml#l00073">CONVERT_TO_IMAGE_STRUCT</a>, and <a class="el" href="helpers_8h_source.xhtml#l00201">offset()</a>.</p>
241<div class="fragment"><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;{</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> src = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src);</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> dst = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(dst);</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; uint prev = 0;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="keywordflow">for</span>(uint j = 0; j &lt; src_step_x; j += 16)</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; {</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; barrier(CLK_GLOBAL_MEM_FENCE);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; uint16 res = convert_uint16(vload16(0, <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, j, 0)));</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; res.s0 += prev;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; res.s1 += res.s0;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; res.s2 += res.s1;</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; res.s3 += res.s2;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; res.s4 += res.s3;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; res.s5 += res.s4;</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; res.s6 += res.s5;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; res.s7 += res.s6;</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; res.s8 += res.s7;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; res.s9 += res.s8;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; res.sA += res.s9;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; res.sB += res.sA;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; res.sC += res.sB;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; res.sD += res.sC;</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; res.sE += res.sD;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; res.sF += res.sE;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; prev = res.sF;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; vstore16(res, 0, (__global uint *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;dst, j, 0));</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; }</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160;}</div><div class="ttc" id="helpers_8h_xhtml_a009469e4d9b8fce3b6d5e97d2077827d"><div class="ttname"><a href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a></div><div class="ttdeci">__global uchar * offset(const Image *img, int x, int y)</div><div class="ttdoc">Get the pointer position of a Image. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00201">helpers.h:201</a></div></div>
242<div class="ttc" id="helpers_8h_xhtml_aebe814363556c244be043b13e7969197"><div class="ttname"><a href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a></div><div class="ttdeci">#define CONVERT_TO_IMAGE_STRUCT(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00073">helpers.h:73</a></div></div>
243<div class="ttc" id="struct_image_xhtml"><div class="ttname"><a href="struct_image.xhtml">Image</a></div><div class="ttdoc">Structure to hold Image information. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00095">helpers.h:95</a></div></div>
244</div><!-- fragment -->
245</div>
246</div>
247<a class="anchor" id="ae909fdef8be348f0da3b730289410433"></a>
248<div class="memitem">
249<div class="memproto">
250 <table class="memname">
251 <tr>
252 <td class="memname">__kernel void integral_vertical </td>
253 <td>(</td>
254 <td class="paramtype">__global uchar *&#160;</td>
255 <td class="paramname"><em>src_ptr</em>, </td>
256 </tr>
257 <tr>
258 <td class="paramkey"></td>
259 <td></td>
260 <td class="paramtype">uint&#160;</td>
261 <td class="paramname"><em>src_stride_x</em>, </td>
262 </tr>
263 <tr>
264 <td class="paramkey"></td>
265 <td></td>
266 <td class="paramtype">uint&#160;</td>
267 <td class="paramname"><em>src_step_x</em>, </td>
268 </tr>
269 <tr>
270 <td class="paramkey"></td>
271 <td></td>
272 <td class="paramtype">uint&#160;</td>
273 <td class="paramname"><em>src_stride_y</em>, </td>
274 </tr>
275 <tr>
276 <td class="paramkey"></td>
277 <td></td>
278 <td class="paramtype">uint&#160;</td>
279 <td class="paramname"><em>src_step_y</em>, </td>
280 </tr>
281 <tr>
282 <td class="paramkey"></td>
283 <td></td>
284 <td class="paramtype">uint&#160;</td>
285 <td class="paramname"><em>src_offset_first_element_in_bytes</em>, </td>
286 </tr>
287 <tr>
288 <td class="paramkey"></td>
289 <td></td>
290 <td class="paramtype">uint&#160;</td>
291 <td class="paramname"><em>height</em>&#160;</td>
292 </tr>
293 <tr>
294 <td></td>
295 <td>)</td>
296 <td></td><td></td>
297 </tr>
298 </table>
299</div><div class="memdoc">
300
301<p>This function computes the vertical integral of the image. </p>
302<dl class="params"><dt>Parameters</dt><dd>
303 <table class="params">
304 <tr><td class="paramdir">[in,out]</td><td class="paramname">src_ptr</td><td>Pointer to the source image. Supported data types: U32 </td></tr>
305 <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
306 <tr><td class="paramdir">[in]</td><td class="paramname">src_step_x</td><td>src_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
307 <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
308 <tr><td class="paramdir">[in]</td><td class="paramname">src_step_y</td><td>src_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
309 <tr><td class="paramdir">[in]</td><td class="paramname">src_offset_first_element_in_bytes</td><td>The offset of the first element in the source image </td></tr>
310 <tr><td class="paramdir">[in]</td><td class="paramname">height</td><td><a class="el" href="struct_image.xhtml" title="Structure to hold Image information. ">Image</a> height. </td></tr>
311 </table>
312 </dd>
313</dl>
314
315<p>Definition at line <a class="el" href="integral__image_8cl_source.xhtml#l00085">85</a> of file <a class="el" href="integral__image_8cl_source.xhtml">integral_image.cl</a>.</p>
316
317<p>References <a class="el" href="helpers_8h_source.xhtml#l00073">CONVERT_TO_IMAGE_STRUCT</a>, and <a class="el" href="helpers_8h_source.xhtml#l00201">offset()</a>.</p>
318<div class="fragment"><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;{</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> src = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src);</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; uint8 prev = vload8(0, (__global uint *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, 0, 0));</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="keywordflow">for</span>(uint j = 1; j &lt; height; ++j)</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; {</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; barrier(CLK_GLOBAL_MEM_FENCE);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; uint8 res = vload8(0, (__global uint *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, 0, j));</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; res += prev;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; vstore8(res, 0, (__global uint *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, 0, j));</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; prev = res;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; }</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160;}</div><div class="ttc" id="helpers_8h_xhtml_a009469e4d9b8fce3b6d5e97d2077827d"><div class="ttname"><a href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a></div><div class="ttdeci">__global uchar * offset(const Image *img, int x, int y)</div><div class="ttdoc">Get the pointer position of a Image. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00201">helpers.h:201</a></div></div>
319<div class="ttc" id="helpers_8h_xhtml_aebe814363556c244be043b13e7969197"><div class="ttname"><a href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a></div><div class="ttdeci">#define CONVERT_TO_IMAGE_STRUCT(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00073">helpers.h:73</a></div></div>
320<div class="ttc" id="struct_image_xhtml"><div class="ttname"><a href="struct_image.xhtml">Image</a></div><div class="ttdoc">Structure to hold Image information. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00095">helpers.h:95</a></div></div>
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