Gitiles
Code Review Sign In
gerrit-public.fairphone.software / platform / external / ComputeLibrary / 664d833b9d7b569db60b0f6d93e80f91f2c07c39 / . / documentation / minmaxloc_8cl.xhtml
blob: 31f38d96d222433c8f4f997ee853b57a03bab4f8 [file] [log] [blame]
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]1<!-- 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 -->
9<title>ARM Compute Library: src/core/CL/cl_kernels/minmaxloc.cl File Reference</title>
10<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;">
42 <div id="projectname">ARM Compute Library
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>
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>
58 <li><a href="namespaces.xhtml"><span>Namespaces</span></a></li>
59 <li><a href="annotated.xhtml"><span>Data&#160;Structures</span></a></li>
60 <li class="current"><a href="files.xhtml"><span>Files</span></a></li>
61 <li>
62 <div id="MSearchBox" class="MSearchBoxInactive">
63 <span class="left">
64 <img id="MSearchSelect" src="search/mag_sel.png"
65 onmouseover="return searchBox.OnSearchSelectShow()"
66 onmouseout="return searchBox.OnSearchSelectHide()"
67 alt=""/>
68 <input type="text" id="MSearchField" value="Search" accesskey="S"
69 onfocus="searchBox.OnSearchFieldFocus(true)"
70 onblur="searchBox.OnSearchFieldFocus(false)"
71 onkeyup="searchBox.OnSearchFieldChange(event)"/>
72 </span><span class="right">
73 <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
74 </span>
75 </div>
76 </li>
77 </ul>
78 </div>
79 <div id="navrow2" class="tabs2">
80 <ul class="tablist">
81 <li><a href="files.xhtml"><span>File&#160;List</span></a></li>
82 <li><a href="globals.xhtml"><span>Globals</span></a></li>
83 </ul>
84 </div>
85</div><!-- top -->
86<div id="side-nav" class="ui-resizable side-nav-resizable">
87 <div id="nav-tree">
88 <div id="nav-tree-contents">
89 <div id="nav-sync" class="sync"></div>
90 </div>
91 </div>
92 <div id="splitbar" style="-moz-user-select:none;"
93 class="ui-resizable-handle">
94 </div>
95</div>
96<script type="text/javascript">
97$(document).ready(function(){initNavTree('minmaxloc_8cl.xhtml','');});
98</script>
99<div id="doc-content">
100<!-- window showing the filter options -->
101<div id="MSearchSelectWindow"
102 onmouseover="return searchBox.OnSearchSelectShow()"
103 onmouseout="return searchBox.OnSearchSelectHide()"
104 onkeydown="return searchBox.OnSearchSelectKey(event)">
105</div>
106
107<!-- iframe showing the search results (closed by default) -->
108<div id="MSearchResultsWindow">
109<iframe src="javascript:void(0)" frameborder="0"
110 name="MSearchResults" id="MSearchResults">
111</iframe>
112</div>
113
114<div class="header">
115 <div class="summary">
116<a href="#define-members">Macros</a> &#124;
117<a href="#func-members">Functions</a> &#124;
118<a href="#var-members">Variables</a> </div>
119 <div class="headertitle">
120<div class="title">minmaxloc.cl File Reference</div> </div>
121</div><!--header-->
122<div class="contents">
123<div class="textblock"><code>#include &quot;<a class="el" href="helpers_8h_source.xhtml">helpers.h</a>&quot;</code><br />
124<code>#include &quot;<a class="el" href="types_8h_source.xhtml">types.h</a>&quot;</code><br />
125</div>
126<p><a href="minmaxloc_8cl_source.xhtml">Go to the source code of this file.</a></p>
127<table class="memberdecls">
128<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
129Macros</h2></td></tr>
130<tr class="memitem:a17decce255d6f94a60379a61a54e3bac"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="minmaxloc_8cl.xhtml#a17decce255d6f94a60379a61a54e3bac">DATA_TYPE_MIN</a>&#160;&#160;&#160;0x0</td></tr>
131<tr class="separator:a17decce255d6f94a60379a61a54e3bac"><td class="memSeparator" colspan="2">&#160;</td></tr>
132<tr class="memitem:afa6b114aa46a23bb226c5c9547f9f623"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="minmaxloc_8cl.xhtml#afa6b114aa46a23bb226c5c9547f9f623">DATA_TYPE_MAX</a>&#160;&#160;&#160;0xFF</td></tr>
133<tr class="separator:afa6b114aa46a23bb226c5c9547f9f623"><td class="memSeparator" colspan="2">&#160;</td></tr>
134</table><table class="memberdecls">
135<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
136Functions</h2></td></tr>
137<tr class="memitem:a57351025b140b0b9ef881714d32d84d3"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="minmaxloc_8cl.xhtml#a57351025b140b0b9ef881714d32d84d3">minmax</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 int *min_max, uint width)</td></tr>
138<tr class="memdesc:a57351025b140b0b9ef881714d32d84d3"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function identifies the min and maximum value of an input image. <a href="#a57351025b140b0b9ef881714d32d84d3">More...</a><br /></td></tr>
139<tr class="separator:a57351025b140b0b9ef881714d32d84d3"><td class="memSeparator" colspan="2">&#160;</td></tr>
140<tr class="memitem:a31ce1a75df24b2037dc76f1748236579"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="minmaxloc_8cl.xhtml#a31ce1a75df24b2037dc76f1748236579">minmaxloc</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 int *min_max, __global uint *min_max_count, __global <a class="el" href="struct_coordinates2_d.xhtml">Coordinates2D</a> *min_loc, uint max_min_loc_count, __global <a class="el" href="struct_coordinates2_d.xhtml">Coordinates2D</a> *max_loc, uint max_max_loc_count)</td></tr>
141<tr class="memdesc:a31ce1a75df24b2037dc76f1748236579"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function counts the min and max occurrences in an image and tags their position. <a href="#a31ce1a75df24b2037dc76f1748236579">More...</a><br /></td></tr>
142<tr class="separator:a31ce1a75df24b2037dc76f1748236579"><td class="memSeparator" colspan="2">&#160;</td></tr>
143</table><table class="memberdecls">
144<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="var-members"></a>
145Variables</h2></td></tr>
146<tr class="memitem:a538b4b63f40e7b12891774e03a4f0dec"><td class="memItemLeft" align="right" valign="top">__constant DATA_TYPE16&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="minmaxloc_8cl.xhtml#a538b4b63f40e7b12891774e03a4f0dec">type_min</a> = ( DATA_TYPE16 )( 0x0 )</td></tr>
147<tr class="separator:a538b4b63f40e7b12891774e03a4f0dec"><td class="memSeparator" colspan="2">&#160;</td></tr>
148<tr class="memitem:a4464d6f922ea17b4a9ca6a2cec7ddb75"><td class="memItemLeft" align="right" valign="top">__constant DATA_TYPE16&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="minmaxloc_8cl.xhtml#a4464d6f922ea17b4a9ca6a2cec7ddb75">type_max</a> = ( DATA_TYPE16 )( 0xFF )</td></tr>
149<tr class="separator:a4464d6f922ea17b4a9ca6a2cec7ddb75"><td class="memSeparator" colspan="2">&#160;</td></tr>
150<tr class="memitem:a0712735973f172ac9efc7d48a31e47ad"><td class="memItemLeft" align="right" valign="top">__constant uint16&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="minmaxloc_8cl.xhtml#a0712735973f172ac9efc7d48a31e47ad">idx16</a> = (uint16)(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)</td></tr>
151<tr class="separator:a0712735973f172ac9efc7d48a31e47ad"><td class="memSeparator" colspan="2">&#160;</td></tr>
152</table>
153<h2 class="groupheader">Macro Definition Documentation</h2>
154<a class="anchor" id="afa6b114aa46a23bb226c5c9547f9f623"></a>
155<div class="memitem">
156<div class="memproto">
157 <table class="memname">
158 <tr>
159 <td class="memname">#define DATA_TYPE_MAX&#160;&#160;&#160;0xFF</td>
160 </tr>
161 </table>
162</div><div class="memdoc">
163
164<p>Definition at line <a class="el" href="minmaxloc_8cl_source.xhtml#l00032">32</a> of file <a class="el" href="minmaxloc_8cl_source.xhtml">minmaxloc.cl</a>.</p>
165
166</div>
167</div>
168<a class="anchor" id="a17decce255d6f94a60379a61a54e3bac"></a>
169<div class="memitem">
170<div class="memproto">
171 <table class="memname">
172 <tr>
173 <td class="memname">#define DATA_TYPE_MIN&#160;&#160;&#160;0x0</td>
174 </tr>
175 </table>
176</div><div class="memdoc">
177
178<p>Definition at line <a class="el" href="minmaxloc_8cl_source.xhtml#l00028">28</a> of file <a class="el" href="minmaxloc_8cl_source.xhtml">minmaxloc.cl</a>.</p>
179
180</div>
181</div>
182<h2 class="groupheader">Function Documentation</h2>
183<a class="anchor" id="a57351025b140b0b9ef881714d32d84d3"></a>
184<div class="memitem">
185<div class="memproto">
186 <table class="memname">
187 <tr>
188 <td class="memname">__kernel void minmax </td>
189 <td>(</td>
190 <td class="paramtype">__global uchar *&#160;</td>
191 <td class="paramname"><em>src_ptr</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>src_stride_x</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>src_step_x</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>src_stride_y</em>, </td>
210 </tr>
211 <tr>
212 <td class="paramkey"></td>
213 <td></td>
214 <td class="paramtype">uint&#160;</td>
215 <td class="paramname"><em>src_step_y</em>, </td>
216 </tr>
217 <tr>
218 <td class="paramkey"></td>
219 <td></td>
220 <td class="paramtype">uint&#160;</td>
221 <td class="paramname"><em>src_offset_first_element_in_bytes</em>, </td>
222 </tr>
223 <tr>
224 <td class="paramkey"></td>
225 <td></td>
226 <td class="paramtype">__global int *&#160;</td>
227 <td class="paramname"><em>min_max</em>, </td>
228 </tr>
229 <tr>
230 <td class="paramkey"></td>
231 <td></td>
232 <td class="paramtype">uint&#160;</td>
233 <td class="paramname"><em>width</em>&#160;</td>
234 </tr>
235 <tr>
236 <td></td>
237 <td>)</td>
238 <td></td><td></td>
239 </tr>
240 </table>
241</div><div class="memdoc">
242
243<p>This function identifies the min and maximum value of an input image. </p>
244<dl class="section note"><dt>Note</dt><dd>Input image data type must be passed as a preprocessor argument using -DDATA_TYPE. Moreover, the minimum and maximum value of the given data type must be provided using -DDATA_TYPE_MIN and -DDATA_TYPE_MAX respectively. </dd>
245<dd>
246In case image width is not a multiple of 16 then -DNON_MULTIPLE_OF_16 must be passed.</dd></dl>
247<dl class="params"><dt>Parameters</dt><dd>
248 <table class="params">
249 <tr><td class="paramdir">[in]</td><td class="paramname">src_ptr</td><td>Pointer to the source image. Supported data types: U8 </td></tr>
250 <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>
251 <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>
252 <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>
253 <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>
254 <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>
255 <tr><td class="paramdir">[out]</td><td class="paramname">min_max</td><td>Pointer to buffer with minimum value in position 0 and maximum value in position 1 </td></tr>
256 <tr><td class="paramdir">[in]</td><td class="paramname">width</td><td>Input image width </td></tr>
257 </table>
258 </dd>
259</dl>
260
261<p>Definition at line <a class="el" href="minmaxloc_8cl_source.xhtml#l00054">54</a> of file <a class="el" href="minmaxloc_8cl_source.xhtml">minmaxloc.cl</a>.</p>
262
263<p>References <a class="el" href="helpers_8h_source.xhtml#l00035">CONVERT</a>, <a class="el" href="helpers_8h_source.xhtml#l00073">CONVERT_TO_IMAGE_STRUCT</a>, <a class="el" href="minmaxloc_8cl_source.xhtml#l00037">idx16</a>, <a class="el" href="helpers_8h_source.xhtml#l00201">offset()</a>, <a class="el" href="minmaxloc_8cl_source.xhtml#l00036">type_max</a>, <a class="el" href="minmaxloc_8cl_source.xhtml#l00035">type_min</a>, and <a class="el" href="helpers_8h_source.xhtml#l00032">VEC_DATA_TYPE</a>.</p>
264<div class="fragment"><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;{</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</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="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">// Initialize local minimum and local maximum</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 16)</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; local_min = <a class="code" href="minmaxloc_8cl.xhtml#a4464d6f922ea17b4a9ca6a2cec7ddb75">type_max</a>;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 16)</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; local_max = <a class="code" href="minmaxloc_8cl.xhtml#a538b4b63f40e7b12891774e03a4f0dec">type_min</a>;</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">// Calculate min/max of row</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; uint width4 = width &gt;&gt; 4;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; for(uint i = 0; i &lt; width4; i++)</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; {</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(DATA_TYPE, 16)</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; data = vload16(0, (__global DATA_TYPE *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, i &lt;&lt; 4, 0));</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; local_min = min(data, local_min);</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; local_max = max(data, local_max);</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; }</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160;</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;<span class="preprocessor">#ifdef NON_MULTIPLE_OF_16</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="comment">// Handle non multiple of 16</span></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(DATA_TYPE, 16)</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; data = vload16(0, (__global DATA_TYPE *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, width4 &lt;&lt; 4, 0));</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(DATA_TYPE, 16)</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; widx = <a class="code" href="helpers_8h.xhtml#aa8d95ba04fc73845abc6045952cae5be">CONVERT</a>(((uint16)(width4 &lt;&lt; 4) + <a class="code" href="minmaxloc_8cl.xhtml#a0712735973f172ac9efc7d48a31e47ad">idx16</a>) &lt; width, <a class="code" href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(DATA_TYPE, 16));</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; local_max = max(local_max, select(type_min, data, widx));</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; local_min = min(local_min, select(type_max, data, widx));</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <span class="comment">// Perform min/max reduction</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; local_min.s01234567 = min(local_min.s01234567, local_min.s89ABCDEF);</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; local_max.s01234567 = max(local_max.s01234567, local_max.s89ABCDEF);</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; local_min.s0123 = min(local_min.s0123, local_min.s4567);</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; local_max.s0123 = max(local_max.s0123, local_max.s4567);</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; local_min.s01 = min(local_min.s01, local_min.s23);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; local_max.s01 = max(local_max.s01, local_max.s23);</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; local_min.s0 = min(local_min.s0, local_min.s1);</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; local_max.s0 = max(local_max.s0, local_max.s1);</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; <span class="comment">// Update global min/max</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; atomic_min(&amp;min_max[0], local_min.s0);</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; atomic_max(&amp;min_max[1], local_max.s0);</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;}</div><div class="ttc" id="convolution3x3_8cl_xhtml_afb8c72ce35c4a1f4a2588d6573e54aa1"><div class="ttname"><a href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a></div><div class="ttdeci">#define DATA_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="convolution3x3_8cl_source.xhtml#l00027">convolution3x3.cl:27</a></div></div>
265<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>
266<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>
267<div class="ttc" id="helpers_8h_xhtml_a36f754c05b6fddf6df0d8d0a74f8159f"><div class="ttname"><a href="helpers_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a></div><div class="ttdeci">#define VEC_DATA_TYPE(type, size)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00032">helpers.h:32</a></div></div>
268<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>
269<div class="ttc" id="minmaxloc_8cl_xhtml_a538b4b63f40e7b12891774e03a4f0dec"><div class="ttname"><a href="minmaxloc_8cl.xhtml#a538b4b63f40e7b12891774e03a4f0dec">type_min</a></div><div class="ttdeci">__constant DATA_TYPE16 type_min</div><div class="ttdef"><b>Definition:</b> <a href="minmaxloc_8cl_source.xhtml#l00035">minmaxloc.cl:35</a></div></div>
270<div class="ttc" id="minmaxloc_8cl_xhtml_a4464d6f922ea17b4a9ca6a2cec7ddb75"><div class="ttname"><a href="minmaxloc_8cl.xhtml#a4464d6f922ea17b4a9ca6a2cec7ddb75">type_max</a></div><div class="ttdeci">__constant DATA_TYPE16 type_max</div><div class="ttdef"><b>Definition:</b> <a href="minmaxloc_8cl_source.xhtml#l00036">minmaxloc.cl:36</a></div></div>
271<div class="ttc" id="minmaxloc_8cl_xhtml_a0712735973f172ac9efc7d48a31e47ad"><div class="ttname"><a href="minmaxloc_8cl.xhtml#a0712735973f172ac9efc7d48a31e47ad">idx16</a></div><div class="ttdeci">__constant uint16 idx16</div><div class="ttdef"><b>Definition:</b> <a href="minmaxloc_8cl_source.xhtml#l00037">minmaxloc.cl:37</a></div></div>
272<div class="ttc" id="helpers_8h_xhtml_aa8d95ba04fc73845abc6045952cae5be"><div class="ttname"><a href="helpers_8h.xhtml#aa8d95ba04fc73845abc6045952cae5be">CONVERT</a></div><div class="ttdeci">#define CONVERT(x, type)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00035">helpers.h:35</a></div></div>
273</div><!-- fragment -->
274</div>
275</div>
276<a class="anchor" id="a31ce1a75df24b2037dc76f1748236579"></a>
277<div class="memitem">
278<div class="memproto">
279 <table class="memname">
280 <tr>
281 <td class="memname">__kernel void minmaxloc </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">__global int *&#160;</td>
320 <td class="paramname"><em>min_max</em>, </td>
321 </tr>
322 <tr>
323 <td class="paramkey"></td>
324 <td></td>
325 <td class="paramtype">__global uint *&#160;</td>
326 <td class="paramname"><em>min_max_count</em>, </td>
327 </tr>
328 <tr>
329 <td class="paramkey"></td>
330 <td></td>
331 <td class="paramtype">__global <a class="el" href="struct_coordinates2_d.xhtml">Coordinates2D</a> *&#160;</td>
332 <td class="paramname"><em>min_loc</em>, </td>
333 </tr>
334 <tr>
335 <td class="paramkey"></td>
336 <td></td>
337 <td class="paramtype">uint&#160;</td>
338 <td class="paramname"><em>max_min_loc_count</em>, </td>
339 </tr>
340 <tr>
341 <td class="paramkey"></td>
342 <td></td>
343 <td class="paramtype">__global <a class="el" href="struct_coordinates2_d.xhtml">Coordinates2D</a> *&#160;</td>
344 <td class="paramname"><em>max_loc</em>, </td>
345 </tr>
346 <tr>
347 <td class="paramkey"></td>
348 <td></td>
349 <td class="paramtype">uint&#160;</td>
350 <td class="paramname"><em>max_max_loc_count</em>&#160;</td>
351 </tr>
352 <tr>
353 <td></td>
354 <td>)</td>
355 <td></td><td></td>
356 </tr>
357 </table>
358</div><div class="memdoc">
359
360<p>This function counts the min and max occurrences in an image and tags their position. </p>
361<dl class="section note"><dt>Note</dt><dd>-DCOUNT_MIN_MAX should be specified if we want to count the occurrences of the minimum and maximum values. </dd>
362<dd>
363-DLOCATE_MIN and/or -DLOCATE_MAX should be specified if we want to store the position of each occurrence on the given array.</dd></dl>
364<dl class="params"><dt>Parameters</dt><dd>
365 <table class="params">
366 <tr><td class="paramdir">[in]</td><td class="paramname">src_ptr</td><td>Pointer to the source image. Supported data types: U8 </td></tr>
367 <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>
368 <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>
369 <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>
370 <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>
371 <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>
372 <tr><td class="paramdir">[in]</td><td class="paramname">min_max</td><td>Pointer to buffer with minimum value in position 0 and maximum value in position 1 </td></tr>
373 <tr><td class="paramdir">[out]</td><td class="paramname">min_max_count</td><td>Pointer to buffer with minimum value occurrences in position 0 and maximum value occurrences in position 1 </td></tr>
374 <tr><td class="paramdir">[out]</td><td class="paramname">min_loc</td><td>Array that holds the location of the minimum value occurrences </td></tr>
375 <tr><td class="paramdir">[in]</td><td class="paramname">max_min_loc_count</td><td>The maximum number of min value occurrences coordinates the array can hold </td></tr>
376 <tr><td class="paramdir">[out]</td><td class="paramname">max_loc</td><td>Array that holds the location of the maximum value occurrences </td></tr>
377 <tr><td class="paramdir">[in]</td><td class="paramname">max_max_loc_count</td><td>The maximum number of max value occurrences coordinates the array can hold </td></tr>
378 </table>
379 </dd>
380</dl>
381
382<p>Definition at line <a class="el" href="minmaxloc_8cl_source.xhtml#l00123">123</a> of file <a class="el" href="minmaxloc_8cl_source.xhtml">minmaxloc.cl</a>.</p>
383
384<p>References <a class="el" href="helpers_8h_source.xhtml#l00073">CONVERT_TO_IMAGE_STRUCT</a>, <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, and <a class="el" href="helpers_8h_source.xhtml#l00097">Image::ptr</a>.</p>
385<div class="fragment"><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160;{</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</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="l00138"></a><span class="lineno"> 138</span>&#160;</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> value = *((__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)src.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160;<span class="preprocessor">#if defined COUNT_MIN_MAX</span></div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; <span class="keywordflow">if</span>(value == min_max[0])</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; {</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; uint idx = atomic_inc(&amp;min_max_count[0]);</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160;<span class="preprocessor">#if defined LOCATE_MIN</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; <span class="keywordflow">if</span>(idx &lt; max_min_loc_count)</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; {</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; min_loc[idx].x = get_global_id(0);</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; min_loc[idx].y = get_global_id(1);</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; }</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; }</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; <span class="keywordflow">if</span>(value == min_max[1])</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; {</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; uint idx = atomic_inc(&amp;min_max_count[1]);</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160;<span class="preprocessor">#if defined LOCATE_MAX</span></div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <span class="keywordflow">if</span>(idx &lt; max_max_loc_count)</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; {</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; max_loc[idx].x = get_global_id(0);</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; max_loc[idx].y = get_global_id(1);</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; }</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; }</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160;}</div><div class="ttc" id="convolution3x3_8cl_xhtml_afb8c72ce35c4a1f4a2588d6573e54aa1"><div class="ttname"><a href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a></div><div class="ttdeci">#define DATA_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="convolution3x3_8cl_source.xhtml#l00027">convolution3x3.cl:27</a></div></div>
386<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>
387<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>
388<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>
389</div><!-- fragment -->
390</div>
391</div>
392<h2 class="groupheader">Variable Documentation</h2>
393<a class="anchor" id="a0712735973f172ac9efc7d48a31e47ad"></a>
394<div class="memitem">
395<div class="memproto">
396 <table class="memname">
397 <tr>
398 <td class="memname">__constant uint16 idx16 = (uint16)(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)</td>
399 </tr>
400 </table>
401</div><div class="memdoc">
402
403<p>Definition at line <a class="el" href="minmaxloc_8cl_source.xhtml#l00037">37</a> of file <a class="el" href="minmaxloc_8cl_source.xhtml">minmaxloc.cl</a>.</p>
404
405<p>Referenced by <a class="el" href="minmaxloc_8cl_source.xhtml#l00054">minmax()</a>.</p>
406
407</div>
408</div>
409<a class="anchor" id="a4464d6f922ea17b4a9ca6a2cec7ddb75"></a>
410<div class="memitem">
411<div class="memproto">
412 <table class="memname">
413 <tr>
414 <td class="memname">__constant DATA_TYPE16 type_max = ( DATA_TYPE16 )( 0xFF )</td>
415 </tr>
416 </table>
417</div><div class="memdoc">
418
419<p>Definition at line <a class="el" href="minmaxloc_8cl_source.xhtml#l00036">36</a> of file <a class="el" href="minmaxloc_8cl_source.xhtml">minmaxloc.cl</a>.</p>
420
421<p>Referenced by <a class="el" href="minmaxloc_8cl_source.xhtml#l00054">minmax()</a>.</p>
422
423</div>
424</div>
425<a class="anchor" id="a538b4b63f40e7b12891774e03a4f0dec"></a>
426<div class="memitem">
427<div class="memproto">
428 <table class="memname">
429 <tr>
430 <td class="memname">__constant DATA_TYPE16 type_min = ( DATA_TYPE16 )( 0x0 )</td>
431 </tr>
432 </table>
433</div><div class="memdoc">
434
435<p>Definition at line <a class="el" href="minmaxloc_8cl_source.xhtml#l00035">35</a> of file <a class="el" href="minmaxloc_8cl_source.xhtml">minmaxloc.cl</a>.</p>
436
437<p>Referenced by <a class="el" href="minmaxloc_8cl_source.xhtml#l00054">minmax()</a>.</p>
438
439</div>
440</div>
441</div><!-- contents -->
442</div><!-- doc-content -->
443<!-- start footer part -->
444<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
445 <ul>
446 <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="minmaxloc_8cl.xhtml">minmaxloc.cl</a></li>
Anthony Barbier46d59272017-05-04 09:15:15 +0100[diff] [blame]447 <li class="footer">Generated on Wed May 3 2017 17:20:04 for ARM Compute Library by
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]448 <a href="http://www.doxygen.org/index.html">
449 <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.11 </li>
450 </ul>
451</div>
452</body>
453</html>