blob: 4b769a78662689489902e55ff4db134d14a71675 [file] [log] [blame]
Anthony Barbier871448e2017-03-24 14:54:29 +00001<!-- HTML header for doxygen 1.8.9.1-->
2<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
3<html xmlns="http://www.w3.org/1999/xhtml">
4<head>
5<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
6<meta http-equiv="X-UA-Compatible" content="IE=9"/>
7<meta name="generator" content="Doxygen 1.8.11"/>
8<meta name="robots" content="NOINDEX, NOFOLLOW" /> <!-- Prevent indexing by search engines -->
Anthony Barbierdbdab852017-06-23 15:42:00 +01009<title>Compute Library: src/core/CL/cl_kernels/gaussian_pyramid.cl File Reference</title>
Anthony Barbier871448e2017-03-24 14:54:29 +000010<link href="tabs.css" rel="stylesheet" type="text/css"/>
11<script type="text/javascript" src="jquery.js"></script>
12<script type="text/javascript" src="dynsections.js"></script>
13<link href="navtree.css" rel="stylesheet" type="text/css"/>
14<script type="text/javascript" src="resize.js"></script>
15<script type="text/javascript" src="navtreedata.js"></script>
16<script type="text/javascript" src="navtree.js"></script>
17<script type="text/javascript">
18 $(document).ready(initResizable);
19 $(window).load(resizeHeight);
20</script>
21<link href="search/search.css" rel="stylesheet" type="text/css"/>
22<script type="text/javascript" src="search/searchdata.js"></script>
23<script type="text/javascript" src="search/search.js"></script>
24<script type="text/javascript">
25 $(document).ready(function() { init_search(); });
26</script>
27<script type="text/x-mathjax-config">
28 MathJax.Hub.Config({
29 extensions: ["tex2jax.js"],
30 jax: ["input/TeX","output/HTML-CSS"],
31});
32</script><script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js"></script>
33<link href="doxygen.css" rel="stylesheet" type="text/css" />
34</head>
35<body>
36<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
37<div id="titlearea">
38<table cellspacing="0" cellpadding="0">
39 <tbody>
40 <tr style="height: 56px;">
41 <td style="padding-left: 0.5em;">
Anthony Barbierdbdab852017-06-23 15:42:00 +010042 <div id="projectname">Compute Library
43 &#160;<span id="projectnumber">v17.06</span>
Anthony Barbier871448e2017-03-24 14:54:29 +000044 </div>
45 </td>
46 </tr>
47 </tbody>
48</table>
49</div>
50<!-- end header part -->
51<!-- Generated by Doxygen 1.8.11 -->
52<script type="text/javascript">
53var searchBox = new SearchBox("searchBox", "search",false,'Search');
54</script>
55 <div id="navrow1" class="tabs">
56 <ul class="tablist">
57 <li><a href="index.xhtml"><span>Main&#160;Page</span></a></li>
Anthony Barbierdbdab852017-06-23 15:42:00 +010058 <li><a href="pages.xhtml"><span>Related&#160;Pages</span></a></li>
Anthony Barbier871448e2017-03-24 14:54:29 +000059 <li><a href="namespaces.xhtml"><span>Namespaces</span></a></li>
60 <li><a href="annotated.xhtml"><span>Data&#160;Structures</span></a></li>
61 <li class="current"><a href="files.xhtml"><span>Files</span></a></li>
62 <li>
63 <div id="MSearchBox" class="MSearchBoxInactive">
64 <span class="left">
65 <img id="MSearchSelect" src="search/mag_sel.png"
66 onmouseover="return searchBox.OnSearchSelectShow()"
67 onmouseout="return searchBox.OnSearchSelectHide()"
68 alt=""/>
69 <input type="text" id="MSearchField" value="Search" accesskey="S"
70 onfocus="searchBox.OnSearchFieldFocus(true)"
71 onblur="searchBox.OnSearchFieldFocus(false)"
72 onkeyup="searchBox.OnSearchFieldChange(event)"/>
73 </span><span class="right">
74 <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
75 </span>
76 </div>
77 </li>
78 </ul>
79 </div>
80 <div id="navrow2" class="tabs2">
81 <ul class="tablist">
82 <li><a href="files.xhtml"><span>File&#160;List</span></a></li>
83 <li><a href="globals.xhtml"><span>Globals</span></a></li>
84 </ul>
85 </div>
86</div><!-- top -->
87<div id="side-nav" class="ui-resizable side-nav-resizable">
88 <div id="nav-tree">
89 <div id="nav-tree-contents">
90 <div id="nav-sync" class="sync"></div>
91 </div>
92 </div>
93 <div id="splitbar" style="-moz-user-select:none;"
94 class="ui-resizable-handle">
95 </div>
96</div>
97<script type="text/javascript">
98$(document).ready(function(){initNavTree('gaussian__pyramid_8cl.xhtml','');});
99</script>
100<div id="doc-content">
101<!-- window showing the filter options -->
102<div id="MSearchSelectWindow"
103 onmouseover="return searchBox.OnSearchSelectShow()"
104 onmouseout="return searchBox.OnSearchSelectHide()"
105 onkeydown="return searchBox.OnSearchSelectKey(event)">
106</div>
107
108<!-- iframe showing the search results (closed by default) -->
109<div id="MSearchResultsWindow">
110<iframe src="javascript:void(0)" frameborder="0"
111 name="MSearchResults" id="MSearchResults">
112</iframe>
113</div>
114
115<div class="header">
116 <div class="summary">
117<a href="#func-members">Functions</a> </div>
118 <div class="headertitle">
119<div class="title">gaussian_pyramid.cl File Reference</div> </div>
120</div><!--header-->
121<div class="contents">
122<div class="textblock"><code>#include &quot;<a class="el" href="helpers_8h_source.xhtml">helpers.h</a>&quot;</code><br />
123</div>
124<p><a href="gaussian__pyramid_8cl_source.xhtml">Go to the source code of this file.</a></p>
125<table class="memberdecls">
126<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
127Functions</h2></td></tr>
128<tr class="memitem:ae8b283818e0ddb9edf271668d2682dc3"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="gaussian__pyramid_8cl.xhtml#ae8b283818e0ddb9edf271668d2682dc3">gaussian1x5_sub_x</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>
129<tr class="memdesc:ae8b283818e0ddb9edf271668d2682dc3"><td class="mdescLeft">&#160;</td><td class="mdescRight">Computes the Gaussian Filter 1x5 + sub-sampling along the X direction. <a href="#ae8b283818e0ddb9edf271668d2682dc3">More...</a><br /></td></tr>
130<tr class="separator:ae8b283818e0ddb9edf271668d2682dc3"><td class="memSeparator" colspan="2">&#160;</td></tr>
131<tr class="memitem:afa433ed067b24c37933229beb846b34b"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="gaussian__pyramid_8cl.xhtml#afa433ed067b24c37933229beb846b34b">gaussian5x1_sub_y</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>
132<tr class="memdesc:afa433ed067b24c37933229beb846b34b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Computes the Gaussian Filter 5x1 + sub-sampling along the Y direction. <a href="#afa433ed067b24c37933229beb846b34b">More...</a><br /></td></tr>
133<tr class="separator:afa433ed067b24c37933229beb846b34b"><td class="memSeparator" colspan="2">&#160;</td></tr>
134</table>
135<h2 class="groupheader">Function Documentation</h2>
136<a class="anchor" id="ae8b283818e0ddb9edf271668d2682dc3"></a>
137<div class="memitem">
138<div class="memproto">
139 <table class="memname">
140 <tr>
141 <td class="memname">__kernel void gaussian1x5_sub_x </td>
142 <td>(</td>
143 <td class="paramtype">__global uchar *&#160;</td>
144 <td class="paramname"><em>src_ptr</em>, </td>
145 </tr>
146 <tr>
147 <td class="paramkey"></td>
148 <td></td>
149 <td class="paramtype">uint&#160;</td>
150 <td class="paramname"><em>src_stride_x</em>, </td>
151 </tr>
152 <tr>
153 <td class="paramkey"></td>
154 <td></td>
155 <td class="paramtype">uint&#160;</td>
156 <td class="paramname"><em>src_step_x</em>, </td>
157 </tr>
158 <tr>
159 <td class="paramkey"></td>
160 <td></td>
161 <td class="paramtype">uint&#160;</td>
162 <td class="paramname"><em>src_stride_y</em>, </td>
163 </tr>
164 <tr>
165 <td class="paramkey"></td>
166 <td></td>
167 <td class="paramtype">uint&#160;</td>
168 <td class="paramname"><em>src_step_y</em>, </td>
169 </tr>
170 <tr>
171 <td class="paramkey"></td>
172 <td></td>
173 <td class="paramtype">uint&#160;</td>
174 <td class="paramname"><em>src_offset_first_element_in_bytes</em>, </td>
175 </tr>
176 <tr>
177 <td class="paramkey"></td>
178 <td></td>
179 <td class="paramtype">__global uchar *&#160;</td>
180 <td class="paramname"><em>dst_ptr</em>, </td>
181 </tr>
182 <tr>
183 <td class="paramkey"></td>
184 <td></td>
185 <td class="paramtype">uint&#160;</td>
186 <td class="paramname"><em>dst_stride_x</em>, </td>
187 </tr>
188 <tr>
189 <td class="paramkey"></td>
190 <td></td>
191 <td class="paramtype">uint&#160;</td>
192 <td class="paramname"><em>dst_step_x</em>, </td>
193 </tr>
194 <tr>
195 <td class="paramkey"></td>
196 <td></td>
197 <td class="paramtype">uint&#160;</td>
198 <td class="paramname"><em>dst_stride_y</em>, </td>
199 </tr>
200 <tr>
201 <td class="paramkey"></td>
202 <td></td>
203 <td class="paramtype">uint&#160;</td>
204 <td class="paramname"><em>dst_step_y</em>, </td>
205 </tr>
206 <tr>
207 <td class="paramkey"></td>
208 <td></td>
209 <td class="paramtype">uint&#160;</td>
210 <td class="paramname"><em>dst_offset_first_element_in_bytes</em>&#160;</td>
211 </tr>
212 <tr>
213 <td></td>
214 <td>)</td>
215 <td></td><td></td>
216 </tr>
217 </table>
218</div><div class="memdoc">
219
220<p>Computes the Gaussian Filter 1x5 + sub-sampling along the X direction. </p>
221<dl class="section note"><dt>Note</dt><dd>Each thread computes 8 pixels</dd></dl>
222<dl class="params"><dt>Parameters</dt><dd>
223 <table class="params">
224 <tr><td class="paramdir">[in]</td><td class="paramname">src_ptr</td><td>Pointer to the source image. Supported data types: U8 </td></tr>
225 <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>
226 <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>
227 <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>
228 <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>
229 <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>
230 <tr><td class="paramdir">[out]</td><td class="paramname">dst_ptr</td><td>Pointer to the destination image. Supported data types: U16 </td></tr>
231 <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>
232 <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>
233 <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>
234 <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>
235 <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>
236 </table>
237 </dd>
238</dl>
239
240<p>Definition at line <a class="el" href="gaussian__pyramid_8cl_source.xhtml#l00043">43</a> of file <a class="el" href="gaussian__pyramid_8cl_source.xhtml">gaussian_pyramid.cl</a>.</p>
241
242<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>
243<div class="fragment"><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;{</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</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="l00048"></a><span class="lineno"> 48</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="l00049"></a><span class="lineno"> 49</span>&#160;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="comment">// Load values for the convolution (20 bytes needed)</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; uchar16 temp0 = vload16(0, src.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; uchar4 temp1 = vload4(0, src.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a> + 16);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="comment">// Convert to USHORT8</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; ushort8 l2_data = convert_ushort8((uchar8)(temp0.s02468ACE));</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; ushort8 l1_data = convert_ushort8((uchar8)(temp0.s13579BDF));</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; ushort8 m_data = convert_ushort8((uchar8)(temp0.s2468, temp0.sACE, temp1.s0));</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; ushort8 r1_data = convert_ushort8((uchar8)(temp0.s3579, temp0.sBDF, temp1.s1));</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; ushort8 r2_data = convert_ushort8((uchar8)(temp0.s468A, temp0.sCE, temp1.s02));</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; <span class="comment">// Compute convolution along the X direction</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; ushort8 pixels = l2_data + r2_data;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; pixels += l1_data * (ushort8)4;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; pixels += m_data * (ushort8)6;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; pixels += r1_data * (ushort8)4;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <span class="comment">// Store result</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; vstore8(pixels, 0, (__global ushort *)dst.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</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>
244<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>
245<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>
246</div><!-- fragment -->
247</div>
248</div>
249<a class="anchor" id="afa433ed067b24c37933229beb846b34b"></a>
250<div class="memitem">
251<div class="memproto">
252 <table class="memname">
253 <tr>
254 <td class="memname">__kernel void gaussian5x1_sub_y </td>
255 <td>(</td>
256 <td class="paramtype">__global uchar *&#160;</td>
257 <td class="paramname"><em>src_ptr</em>, </td>
258 </tr>
259 <tr>
260 <td class="paramkey"></td>
261 <td></td>
262 <td class="paramtype">uint&#160;</td>
263 <td class="paramname"><em>src_stride_x</em>, </td>
264 </tr>
265 <tr>
266 <td class="paramkey"></td>
267 <td></td>
268 <td class="paramtype">uint&#160;</td>
269 <td class="paramname"><em>src_step_x</em>, </td>
270 </tr>
271 <tr>
272 <td class="paramkey"></td>
273 <td></td>
274 <td class="paramtype">uint&#160;</td>
275 <td class="paramname"><em>src_stride_y</em>, </td>
276 </tr>
277 <tr>
278 <td class="paramkey"></td>
279 <td></td>
280 <td class="paramtype">uint&#160;</td>
281 <td class="paramname"><em>src_step_y</em>, </td>
282 </tr>
283 <tr>
284 <td class="paramkey"></td>
285 <td></td>
286 <td class="paramtype">uint&#160;</td>
287 <td class="paramname"><em>src_offset_first_element_in_bytes</em>, </td>
288 </tr>
289 <tr>
290 <td class="paramkey"></td>
291 <td></td>
292 <td class="paramtype">__global uchar *&#160;</td>
293 <td class="paramname"><em>dst_ptr</em>, </td>
294 </tr>
295 <tr>
296 <td class="paramkey"></td>
297 <td></td>
298 <td class="paramtype">uint&#160;</td>
299 <td class="paramname"><em>dst_stride_x</em>, </td>
300 </tr>
301 <tr>
302 <td class="paramkey"></td>
303 <td></td>
304 <td class="paramtype">uint&#160;</td>
305 <td class="paramname"><em>dst_step_x</em>, </td>
306 </tr>
307 <tr>
308 <td class="paramkey"></td>
309 <td></td>
310 <td class="paramtype">uint&#160;</td>
311 <td class="paramname"><em>dst_stride_y</em>, </td>
312 </tr>
313 <tr>
314 <td class="paramkey"></td>
315 <td></td>
316 <td class="paramtype">uint&#160;</td>
317 <td class="paramname"><em>dst_step_y</em>, </td>
318 </tr>
319 <tr>
320 <td class="paramkey"></td>
321 <td></td>
322 <td class="paramtype">uint&#160;</td>
323 <td class="paramname"><em>dst_offset_first_element_in_bytes</em>&#160;</td>
324 </tr>
325 <tr>
326 <td></td>
327 <td>)</td>
328 <td></td><td></td>
329 </tr>
330 </table>
331</div><div class="memdoc">
332
333<p>Computes the Gaussian Filter 5x1 + sub-sampling along the Y direction. </p>
334<dl class="section note"><dt>Note</dt><dd>Each thread computes 8 pixels</dd></dl>
335<dl class="params"><dt>Parameters</dt><dd>
336 <table class="params">
337 <tr><td class="paramdir">[in]</td><td class="paramname">src_ptr</td><td>Pointer to the source image. Supported data types: U16 </td></tr>
338 <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>
339 <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>
340 <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>
341 <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>
342 <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>
343 <tr><td class="paramdir">[out]</td><td class="paramname">dst_ptr</td><td>Pointer to the destination image. Supported data types: U8 </td></tr>
344 <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>
345 <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>
346 <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>
347 <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>
348 <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>
349 </table>
350 </dd>
351</dl>
352
353<p>Definition at line <a class="el" href="gaussian__pyramid_8cl_source.xhtml#l00088">88</a> of file <a class="el" href="gaussian__pyramid_8cl_source.xhtml">gaussian_pyramid.cl</a>.</p>
354
355<p>References <a class="el" href="helpers_8h_source.xhtml#l00073">CONVERT_TO_IMAGE_STRUCT</a>, <a class="el" href="helpers_8h_source.xhtml#l00201">offset()</a>, and <a class="el" href="helpers_8h_source.xhtml#l00097">Image::ptr</a>.</p>
Anthony Barbiera4376382017-04-12 15:12:46 +0100356<div class="fragment"><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; <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="l00093"></a><span class="lineno"> 93</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="l00094"></a><span class="lineno"> 94</span>&#160;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="comment">// Load values</span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; ushort8 u2_data = vload8(0, (__global ushort *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, 0, 0));</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; ushort8 u1_data = vload8(0, (__global ushort *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, 0, 1));</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; ushort8 m_data = vload8(0, (__global ushort *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, 0, 2));</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; ushort8 d1_data = vload8(0, (__global ushort *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, 0, 3));</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; ushort8 d2_data = vload8(0, (__global ushort *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, 0, 4));</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160;</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <span class="comment">// Compute convolution along the Y direction</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; ushort8 pixels = u2_data + d2_data;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; pixels += u1_data * (ushort8)4;</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; pixels += m_data * (ushort8)6;</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; pixels += d1_data * (ushort8)4;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="comment">// Scale result</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; pixels &gt;&gt;= (ushort8)8;</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="comment">// Store result</span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; vstore8(convert_uchar8_sat(pixels), 0, dst.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</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>
Anthony Barbier871448e2017-03-24 14:54:29 +0000357<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>
358<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>
359<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>
360</div><!-- fragment -->
361</div>
362</div>
363</div><!-- contents -->
364</div><!-- doc-content -->
365<!-- start footer part -->
366<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
367 <ul>
368 <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="gaussian__pyramid_8cl.xhtml">gaussian_pyramid.cl</a></li>
Anthony Barbierdbdab852017-06-23 15:42:00 +0100369 <li class="footer">Generated on Fri Jun 23 2017 15:44:34 for Compute Library by
Anthony Barbier871448e2017-03-24 14:54:29 +0000370 <a href="http://www.doxygen.org/index.html">
371 <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.11 </li>
372 </ul>
373</div>
374</body>
375</html>