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Anthony Barbierdbdab852017-06-23 15:42:00 +01009<title>Compute Library: src/core/CL/cl_kernels/minmaxloc.cl File Reference</title>
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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>
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116 <div class="summary">
117<a href="#define-members">Macros</a> &#124;
118<a href="#func-members">Functions</a> &#124;
119<a href="#var-members">Variables</a> </div>
120 <div class="headertitle">
121<div class="title">minmaxloc.cl File Reference</div> </div>
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123<div class="contents">
124<div class="textblock"><code>#include &quot;<a class="el" href="helpers_8h_source.xhtml">helpers.h</a>&quot;</code><br />
125<code>#include &quot;<a class="el" href="types_8h_source.xhtml">types.h</a>&quot;</code><br />
126</div>
127<p><a href="minmaxloc_8cl_source.xhtml">Go to the source code of this file.</a></p>
128<table class="memberdecls">
129<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
130Macros</h2></td></tr>
131<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>
132<tr class="separator:a17decce255d6f94a60379a61a54e3bac"><td class="memSeparator" colspan="2">&#160;</td></tr>
133<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>
134<tr class="separator:afa6b114aa46a23bb226c5c9547f9f623"><td class="memSeparator" colspan="2">&#160;</td></tr>
135</table><table class="memberdecls">
136<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
137Functions</h2></td></tr>
138<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>
139<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>
140<tr class="separator:a57351025b140b0b9ef881714d32d84d3"><td class="memSeparator" colspan="2">&#160;</td></tr>
141<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>
142<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>
143<tr class="separator:a31ce1a75df24b2037dc76f1748236579"><td class="memSeparator" colspan="2">&#160;</td></tr>
144</table><table class="memberdecls">
145<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="var-members"></a>
146Variables</h2></td></tr>
147<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>
148<tr class="separator:a538b4b63f40e7b12891774e03a4f0dec"><td class="memSeparator" colspan="2">&#160;</td></tr>
149<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>
150<tr class="separator:a4464d6f922ea17b4a9ca6a2cec7ddb75"><td class="memSeparator" colspan="2">&#160;</td></tr>
151<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>
152<tr class="separator:a0712735973f172ac9efc7d48a31e47ad"><td class="memSeparator" colspan="2">&#160;</td></tr>
153</table>
154<h2 class="groupheader">Macro Definition Documentation</h2>
155<a class="anchor" id="afa6b114aa46a23bb226c5c9547f9f623"></a>
156<div class="memitem">
157<div class="memproto">
158 <table class="memname">
159 <tr>
160 <td class="memname">#define DATA_TYPE_MAX&#160;&#160;&#160;0xFF</td>
161 </tr>
162 </table>
163</div><div class="memdoc">
164
165<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>
166
167</div>
168</div>
169<a class="anchor" id="a17decce255d6f94a60379a61a54e3bac"></a>
170<div class="memitem">
171<div class="memproto">
172 <table class="memname">
173 <tr>
174 <td class="memname">#define DATA_TYPE_MIN&#160;&#160;&#160;0x0</td>
175 </tr>
176 </table>
177</div><div class="memdoc">
178
179<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>
180
181</div>
182</div>
183<h2 class="groupheader">Function Documentation</h2>
184<a class="anchor" id="a57351025b140b0b9ef881714d32d84d3"></a>
185<div class="memitem">
186<div class="memproto">
187 <table class="memname">
188 <tr>
189 <td class="memname">__kernel void minmax </td>
190 <td>(</td>
191 <td class="paramtype">__global uchar *&#160;</td>
192 <td class="paramname"><em>src_ptr</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>src_stride_x</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>src_step_x</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>src_stride_y</em>, </td>
211 </tr>
212 <tr>
213 <td class="paramkey"></td>
214 <td></td>
215 <td class="paramtype">uint&#160;</td>
216 <td class="paramname"><em>src_step_y</em>, </td>
217 </tr>
218 <tr>
219 <td class="paramkey"></td>
220 <td></td>
221 <td class="paramtype">uint&#160;</td>
222 <td class="paramname"><em>src_offset_first_element_in_bytes</em>, </td>
223 </tr>
224 <tr>
225 <td class="paramkey"></td>
226 <td></td>
227 <td class="paramtype">__global int *&#160;</td>
228 <td class="paramname"><em>min_max</em>, </td>
229 </tr>
230 <tr>
231 <td class="paramkey"></td>
232 <td></td>
233 <td class="paramtype">uint&#160;</td>
234 <td class="paramname"><em>width</em>&#160;</td>
235 </tr>
236 <tr>
237 <td></td>
238 <td>)</td>
239 <td></td><td></td>
240 </tr>
241 </table>
242</div><div class="memdoc">
243
244<p>This function identifies the min and maximum value of an input image. </p>
245<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>
246<dd>
247In case image width is not a multiple of 16 then -DNON_MULTIPLE_OF_16 must be passed.</dd></dl>
248<dl class="params"><dt>Parameters</dt><dd>
249 <table class="params">
250 <tr><td class="paramdir">[in]</td><td class="paramname">src_ptr</td><td>Pointer to the source image. Supported data types: U8 </td></tr>
251 <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>
252 <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>
253 <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>
254 <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>
255 <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>
256 <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>
257 <tr><td class="paramdir">[in]</td><td class="paramname">width</td><td>Input image width </td></tr>
258 </table>
259 </dd>
260</dl>
261
262<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>
263
Anthony Barbierdbdab852017-06-23 15:42:00 +0100264<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="tests_2validation_2_fixed_point_8h_source.xhtml#l00880">arm_compute::test::fixed_point_arithmetic::detail::max()</a>, <a class="el" href="tests_2validation_2_fixed_point_8h_source.xhtml#l00875">arm_compute::test::fixed_point_arithmetic::detail::min()</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>
265<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 = <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#aabcf39e3917f842dbc5fbb0d802f24d5">min</a>(data, local_min);</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; local_max = <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#ad91bb73431b4de1f4946ed949d444849">max</a>(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 = <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#ad91bb73431b4de1f4946ed949d444849">max</a>(local_max, select(type_min, data, widx));</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; local_min = <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#aabcf39e3917f842dbc5fbb0d802f24d5">min</a>(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 = <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#aabcf39e3917f842dbc5fbb0d802f24d5">min</a>(local_min.s01234567, local_min.s89ABCDEF);</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; local_max.s01234567 = <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#ad91bb73431b4de1f4946ed949d444849">max</a>(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 = <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#aabcf39e3917f842dbc5fbb0d802f24d5">min</a>(local_min.s0123, local_min.s4567);</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; local_max.s0123 = <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#ad91bb73431b4de1f4946ed949d444849">max</a>(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 = <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#aabcf39e3917f842dbc5fbb0d802f24d5">min</a>(local_min.s01, local_min.s23);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; local_max.s01 = <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#ad91bb73431b4de1f4946ed949d444849">max</a>(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 = <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#aabcf39e3917f842dbc5fbb0d802f24d5">min</a>(local_min.s0, local_min.s1);</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; local_max.s0 = <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#ad91bb73431b4de1f4946ed949d444849">max</a>(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="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail_xhtml_aabcf39e3917f842dbc5fbb0d802f24d5"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#aabcf39e3917f842dbc5fbb0d802f24d5">arm_compute::test::fixed_point_arithmetic::detail::min</a></div><div class="ttdeci">fixed_point&lt; T &gt; min(fixed_point&lt; T &gt; x, fixed_point&lt; T &gt; y)</div><div class="ttdef"><b>Definition:</b> <a href="tests_2validation_2_fixed_point_8h_source.xhtml#l00875">FixedPoint.h:875</a></div></div>
266<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>
Anthony Barbier871448e2017-03-24 14:54:29 +0000267<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>
268<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>
269<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>
270<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>
271<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>
272<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>
273<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>
Anthony Barbierdbdab852017-06-23 15:42:00 +0100274<div class="ttc" id="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail_xhtml_ad91bb73431b4de1f4946ed949d444849"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#ad91bb73431b4de1f4946ed949d444849">arm_compute::test::fixed_point_arithmetic::detail::max</a></div><div class="ttdeci">fixed_point&lt; T &gt; max(fixed_point&lt; T &gt; x, fixed_point&lt; T &gt; y)</div><div class="ttdef"><b>Definition:</b> <a href="tests_2validation_2_fixed_point_8h_source.xhtml#l00880">FixedPoint.h:880</a></div></div>
Anthony Barbier871448e2017-03-24 14:54:29 +0000275<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>
276</div><!-- fragment -->
277</div>
278</div>
279<a class="anchor" id="a31ce1a75df24b2037dc76f1748236579"></a>
280<div class="memitem">
281<div class="memproto">
282 <table class="memname">
283 <tr>
284 <td class="memname">__kernel void minmaxloc </td>
285 <td>(</td>
286 <td class="paramtype">__global uchar *&#160;</td>
287 <td class="paramname"><em>src_ptr</em>, </td>
288 </tr>
289 <tr>
290 <td class="paramkey"></td>
291 <td></td>
292 <td class="paramtype">uint&#160;</td>
293 <td class="paramname"><em>src_stride_x</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>src_step_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>src_stride_y</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>src_step_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>src_offset_first_element_in_bytes</em>, </td>
318 </tr>
319 <tr>
320 <td class="paramkey"></td>
321 <td></td>
322 <td class="paramtype">__global int *&#160;</td>
323 <td class="paramname"><em>min_max</em>, </td>
324 </tr>
325 <tr>
326 <td class="paramkey"></td>
327 <td></td>
328 <td class="paramtype">__global uint *&#160;</td>
329 <td class="paramname"><em>min_max_count</em>, </td>
330 </tr>
331 <tr>
332 <td class="paramkey"></td>
333 <td></td>
334 <td class="paramtype">__global <a class="el" href="struct_coordinates2_d.xhtml">Coordinates2D</a> *&#160;</td>
335 <td class="paramname"><em>min_loc</em>, </td>
336 </tr>
337 <tr>
338 <td class="paramkey"></td>
339 <td></td>
340 <td class="paramtype">uint&#160;</td>
341 <td class="paramname"><em>max_min_loc_count</em>, </td>
342 </tr>
343 <tr>
344 <td class="paramkey"></td>
345 <td></td>
346 <td class="paramtype">__global <a class="el" href="struct_coordinates2_d.xhtml">Coordinates2D</a> *&#160;</td>
347 <td class="paramname"><em>max_loc</em>, </td>
348 </tr>
349 <tr>
350 <td class="paramkey"></td>
351 <td></td>
352 <td class="paramtype">uint&#160;</td>
353 <td class="paramname"><em>max_max_loc_count</em>&#160;</td>
354 </tr>
355 <tr>
356 <td></td>
357 <td>)</td>
358 <td></td><td></td>
359 </tr>
360 </table>
361</div><div class="memdoc">
362
363<p>This function counts the min and max occurrences in an image and tags their position. </p>
364<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>
365<dd>
366-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>
367<dl class="params"><dt>Parameters</dt><dd>
368 <table class="params">
369 <tr><td class="paramdir">[in]</td><td class="paramname">src_ptr</td><td>Pointer to the source image. Supported data types: U8 </td></tr>
370 <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>
371 <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>
372 <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>
373 <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>
374 <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>
375 <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>
376 <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>
377 <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>
378 <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>
379 <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>
380 <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>
381 </table>
382 </dd>
383</dl>
384
385<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>
386
387<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>
388<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>
389<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>
390<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>
391<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>
392</div><!-- fragment -->
393</div>
394</div>
395<h2 class="groupheader">Variable Documentation</h2>
396<a class="anchor" id="a0712735973f172ac9efc7d48a31e47ad"></a>
397<div class="memitem">
398<div class="memproto">
399 <table class="memname">
400 <tr>
401 <td class="memname">__constant uint16 idx16 = (uint16)(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)</td>
402 </tr>
403 </table>
404</div><div class="memdoc">
405
406<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>
407
408<p>Referenced by <a class="el" href="minmaxloc_8cl_source.xhtml#l00054">minmax()</a>.</p>
409
410</div>
411</div>
412<a class="anchor" id="a4464d6f922ea17b4a9ca6a2cec7ddb75"></a>
413<div class="memitem">
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415 <table class="memname">
416 <tr>
417 <td class="memname">__constant DATA_TYPE16 type_max = ( DATA_TYPE16 )( 0xFF )</td>
418 </tr>
419 </table>
420</div><div class="memdoc">
421
422<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>
423
424<p>Referenced by <a class="el" href="minmaxloc_8cl_source.xhtml#l00054">minmax()</a>.</p>
425
426</div>
427</div>
428<a class="anchor" id="a538b4b63f40e7b12891774e03a4f0dec"></a>
429<div class="memitem">
430<div class="memproto">
431 <table class="memname">
432 <tr>
433 <td class="memname">__constant DATA_TYPE16 type_min = ( DATA_TYPE16 )( 0x0 )</td>
434 </tr>
435 </table>
436</div><div class="memdoc">
437
438<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>
439
440<p>Referenced by <a class="el" href="minmaxloc_8cl_source.xhtml#l00054">minmax()</a>.</p>
441
442</div>
443</div>
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447<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
448 <ul>
449 <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 Barbierdbdab852017-06-23 15:42:00 +0100450 <li class="footer">Generated on Fri Jun 23 2017 15:44:34 for Compute Library by
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452 <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.11 </li>
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