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gerrit-public.fairphone.software / platform / external / ComputeLibrary / dbdab85d6e0f96d3361a9e30310367d89953466c / . / documentation / magnitude__phase_8cl.xhtml
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Anthony Barbierdbdab852017-06-23 15:42:00 +0100[diff] [blame^]9<title>Compute Library: src/core/CL/cl_kernels/magnitude_phase.cl File Reference</title>
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Anthony Barbierdbdab852017-06-23 15:42:00 +0100[diff] [blame^]42 <div id="projectname">Compute Library
43 &#160;<span id="projectnumber">v17.06</span>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]44 </div>
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117<a href="#define-members">Macros</a> &#124;
118<a href="#func-members">Functions</a> </div>
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120<div class="title">magnitude_phase.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</div>
125<p><a href="magnitude__phase_8cl_source.xhtml">Go to the source code of this file.</a></p>
126<table class="memberdecls">
127<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
128Macros</h2></td></tr>
129<tr class="memitem:a259a59d7a4f247119c457af235827a29"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="magnitude__phase_8cl.xhtml#a259a59d7a4f247119c457af235827a29">MAGNITUDE_OP</a>(x, y)&#160;&#160;&#160;<a class="el" href="magnitude__phase_8cl.xhtml#aedc7e5ee4cb8f5a0240e422f9a9e7ce9">magnitude_l1</a>((x), (y))</td></tr>
130<tr class="separator:a259a59d7a4f247119c457af235827a29"><td class="memSeparator" colspan="2">&#160;</td></tr>
131<tr class="memitem:a4434551334149479f843f87424bbb8c8"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="magnitude__phase_8cl.xhtml#a4434551334149479f843f87424bbb8c8">PHASE_OP</a>(x, y)&#160;&#160;&#160;<a class="el" href="magnitude__phase_8cl.xhtml#ab0d7e891c8a09824c46baa2393d6961f">phase_unsigned</a>((x), (y))</td></tr>
132<tr class="separator:a4434551334149479f843f87424bbb8c8"><td class="memSeparator" colspan="2">&#160;</td></tr>
133</table><table class="memberdecls">
134<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
135Functions</h2></td></tr>
136<tr class="memitem:aedc7e5ee4cb8f5a0240e422f9a9e7ce9"><td class="memItemLeft" align="right" valign="top">DATA_TYPE16&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="magnitude__phase_8cl.xhtml#aedc7e5ee4cb8f5a0240e422f9a9e7ce9">magnitude_l1</a> (DATA_TYPE16 a, DATA_TYPE16 b)</td></tr>
137<tr class="memdesc:aedc7e5ee4cb8f5a0240e422f9a9e7ce9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculates L1 normalization between two inputs. <a href="#aedc7e5ee4cb8f5a0240e422f9a9e7ce9">More...</a><br /></td></tr>
138<tr class="separator:aedc7e5ee4cb8f5a0240e422f9a9e7ce9"><td class="memSeparator" colspan="2">&#160;</td></tr>
139<tr class="memitem:aec9387519a61474acb0b2bf90ef6d94d"><td class="memItemLeft" align="right" valign="top">DATA_TYPE16&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="magnitude__phase_8cl.xhtml#aec9387519a61474acb0b2bf90ef6d94d">magnitude_l2</a> (int16 a, int16 b)</td></tr>
140<tr class="memdesc:aec9387519a61474acb0b2bf90ef6d94d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculates L2 normalization between two inputs. <a href="#aec9387519a61474acb0b2bf90ef6d94d">More...</a><br /></td></tr>
141<tr class="separator:aec9387519a61474acb0b2bf90ef6d94d"><td class="memSeparator" colspan="2">&#160;</td></tr>
142<tr class="memitem:ab0d7e891c8a09824c46baa2393d6961f"><td class="memItemLeft" align="right" valign="top">uchar16&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="magnitude__phase_8cl.xhtml#ab0d7e891c8a09824c46baa2393d6961f">phase_unsigned</a> (DATA_TYPE16 a, DATA_TYPE16 b)</td></tr>
143<tr class="memdesc:ab0d7e891c8a09824c46baa2393d6961f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculates unsigned phase between two inputs. <a href="#ab0d7e891c8a09824c46baa2393d6961f">More...</a><br /></td></tr>
144<tr class="separator:ab0d7e891c8a09824c46baa2393d6961f"><td class="memSeparator" colspan="2">&#160;</td></tr>
145<tr class="memitem:a02ff978b574e44604d625dbd470ab870"><td class="memItemLeft" align="right" valign="top">uchar16&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="magnitude__phase_8cl.xhtml#a02ff978b574e44604d625dbd470ab870">phase_signed</a> (DATA_TYPE16 a, DATA_TYPE16 b)</td></tr>
146<tr class="memdesc:a02ff978b574e44604d625dbd470ab870"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculates signed phase between two inputs. <a href="#a02ff978b574e44604d625dbd470ab870">More...</a><br /></td></tr>
147<tr class="separator:a02ff978b574e44604d625dbd470ab870"><td class="memSeparator" colspan="2">&#160;</td></tr>
148<tr class="memitem:a76ac02e1f05a26f67090c9464434e04a"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="magnitude__phase_8cl.xhtml#a76ac02e1f05a26f67090c9464434e04a">magnitude_phase</a> (__global uchar *gx_ptr, uint gx_stride_x, uint gx_step_x, uint gx_stride_y, uint gx_step_y, uint gx_offset_first_element_in_bytes, __global uchar *gy_ptr, uint gy_stride_x, uint gy_step_x, uint gy_stride_y, uint gy_step_y, uint gy_offset_first_element_in_bytes, __global uchar *magnitude_ptr, uint magnitude_stride_x, uint magnitude_step_x, uint magnitude_stride_y, uint magnitude_step_y, uint magnitude_offset_first_element_in_bytes, __global uchar *phase_ptr, uint phase_stride_x, uint phase_step_x, uint phase_stride_y, uint phase_step_y, uint phase_offset_first_element_in_bytes)</td></tr>
149<tr class="memdesc:a76ac02e1f05a26f67090c9464434e04a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate the magnitude and phase of given the gradients of an image. <a href="#a76ac02e1f05a26f67090c9464434e04a">More...</a><br /></td></tr>
150<tr class="separator:a76ac02e1f05a26f67090c9464434e04a"><td class="memSeparator" colspan="2">&#160;</td></tr>
151</table>
152<h2 class="groupheader">Macro Definition Documentation</h2>
153<a class="anchor" id="a259a59d7a4f247119c457af235827a29"></a>
154<div class="memitem">
155<div class="memproto">
156 <table class="memname">
157 <tr>
158 <td class="memname">#define MAGNITUDE_OP</td>
159 <td>(</td>
160 <td class="paramtype">&#160;</td>
161 <td class="paramname">x, </td>
162 </tr>
163 <tr>
164 <td class="paramkey"></td>
165 <td></td>
166 <td class="paramtype">&#160;</td>
167 <td class="paramname">y&#160;</td>
168 </tr>
169 <tr>
170 <td></td>
171 <td>)</td>
172 <td></td><td>&#160;&#160;&#160;<a class="el" href="magnitude__phase_8cl.xhtml#aedc7e5ee4cb8f5a0240e422f9a9e7ce9">magnitude_l1</a>((x), (y))</td>
173 </tr>
174 </table>
175</div><div class="memdoc">
176
Anthony Barbierdbdab852017-06-23 15:42:00 +0100[diff] [blame^]177<p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00081">81</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]178
Anthony Barbierdbdab852017-06-23 15:42:00 +0100[diff] [blame^]179<p>Referenced by <a class="el" href="magnitude__phase_8cl_source.xhtml#l00130">magnitude_phase()</a>.</p>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]180
181</div>
182</div>
183<a class="anchor" id="a4434551334149479f843f87424bbb8c8"></a>
184<div class="memitem">
185<div class="memproto">
186 <table class="memname">
187 <tr>
188 <td class="memname">#define PHASE_OP</td>
189 <td>(</td>
190 <td class="paramtype">&#160;</td>
191 <td class="paramname">x, </td>
192 </tr>
193 <tr>
194 <td class="paramkey"></td>
195 <td></td>
196 <td class="paramtype">&#160;</td>
197 <td class="paramname">y&#160;</td>
198 </tr>
199 <tr>
200 <td></td>
201 <td>)</td>
202 <td></td><td>&#160;&#160;&#160;<a class="el" href="magnitude__phase_8cl.xhtml#ab0d7e891c8a09824c46baa2393d6961f">phase_unsigned</a>((x), (y))</td>
203 </tr>
204 </table>
205</div><div class="memdoc">
206
Anthony Barbierdbdab852017-06-23 15:42:00 +0100[diff] [blame^]207<p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00089">89</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]208
Anthony Barbierdbdab852017-06-23 15:42:00 +0100[diff] [blame^]209<p>Referenced by <a class="el" href="magnitude__phase_8cl_source.xhtml#l00130">magnitude_phase()</a>.</p>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]210
211</div>
212</div>
213<h2 class="groupheader">Function Documentation</h2>
214<a class="anchor" id="aedc7e5ee4cb8f5a0240e422f9a9e7ce9"></a>
215<div class="memitem">
216<div class="memproto">
217<table class="mlabels">
218 <tr>
219 <td class="mlabels-left">
220 <table class="memname">
221 <tr>
222 <td class="memname">DATA_TYPE16 magnitude_l1 </td>
223 <td>(</td>
224 <td class="paramtype">DATA_TYPE16&#160;</td>
225 <td class="paramname"><em>a</em>, </td>
226 </tr>
227 <tr>
228 <td class="paramkey"></td>
229 <td></td>
230 <td class="paramtype">DATA_TYPE16&#160;</td>
231 <td class="paramname"><em>b</em>&#160;</td>
232 </tr>
233 <tr>
234 <td></td>
235 <td>)</td>
236 <td></td><td></td>
237 </tr>
238 </table>
239 </td>
240 <td class="mlabels-right">
241<span class="mlabels"><span class="mlabel">inline</span></span> </td>
242 </tr>
243</table>
244</div><div class="memdoc">
245
246<p>Calculates L1 normalization between two inputs. </p>
247<dl class="params"><dt>Parameters</dt><dd>
248 <table class="params">
249 <tr><td class="paramdir">[in]</td><td class="paramname">a</td><td>First input. Supported data types: S16, S32 </td></tr>
250 <tr><td class="paramdir">[in]</td><td class="paramname">b</td><td>Second input. Supported data types: S16, S32</td></tr>
251 </table>
252 </dd>
253</dl>
254<dl class="section return"><dt>Returns</dt><dd>L1 normalization magnitude result. Supported data types: S16, S32 </dd></dl>
255
256<p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00033">33</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
257
Anthony Barbierdbdab852017-06-23 15:42:00 +0100[diff] [blame^]258<p>References <a class="el" href="tests_2validation_2_fixed_point_8h_source.xhtml#l00905">arm_compute::test::fixed_point_arithmetic::detail::abs()</a>, <a class="el" href="helpers_8h_source.xhtml#l00038">CONVERT_SAT</a>, and <a class="el" href="helpers_8h_source.xhtml#l00032">VEC_DATA_TYPE</a>.</p>
259<div class="fragment"><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;{</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; <span class="keywordflow">return</span> <a class="code" href="helpers_8h.xhtml#a23fb01b6f3453cc0e48a026fd44f6acd">CONVERT_SAT</a>(add_sat(<a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#ae115fc750a92fb6a5e094998b56fcc56">abs</a>(a), <a class="code" href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#ae115fc750a92fb6a5e094998b56fcc56">abs</a>(b)), <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="l00036"></a><span class="lineno"> 36</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>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]260<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>
261<div class="ttc" id="helpers_8h_xhtml_a23fb01b6f3453cc0e48a026fd44f6acd"><div class="ttname"><a href="helpers_8h.xhtml#a23fb01b6f3453cc0e48a026fd44f6acd">CONVERT_SAT</a></div><div class="ttdeci">#define CONVERT_SAT(x, type)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00038">helpers.h:38</a></div></div>
Anthony Barbierdbdab852017-06-23 15:42:00 +0100[diff] [blame^]262<div class="ttc" id="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail_xhtml_ae115fc750a92fb6a5e094998b56fcc56"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1fixed__point__arithmetic_1_1detail.xhtml#ae115fc750a92fb6a5e094998b56fcc56">arm_compute::test::fixed_point_arithmetic::detail::abs</a></div><div class="ttdeci">fixed_point&lt; T &gt; abs(fixed_point&lt; T &gt; x)</div><div class="ttdef"><b>Definition:</b> <a href="tests_2validation_2_fixed_point_8h_source.xhtml#l00905">FixedPoint.h:905</a></div></div>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]263</div><!-- fragment -->
264</div>
265</div>
266<a class="anchor" id="aec9387519a61474acb0b2bf90ef6d94d"></a>
267<div class="memitem">
268<div class="memproto">
269<table class="mlabels">
270 <tr>
271 <td class="mlabels-left">
272 <table class="memname">
273 <tr>
274 <td class="memname">DATA_TYPE16 magnitude_l2 </td>
275 <td>(</td>
276 <td class="paramtype">int16&#160;</td>
277 <td class="paramname"><em>a</em>, </td>
278 </tr>
279 <tr>
280 <td class="paramkey"></td>
281 <td></td>
282 <td class="paramtype">int16&#160;</td>
283 <td class="paramname"><em>b</em>&#160;</td>
284 </tr>
285 <tr>
286 <td></td>
287 <td>)</td>
288 <td></td><td></td>
289 </tr>
290 </table>
291 </td>
292 <td class="mlabels-right">
293<span class="mlabels"><span class="mlabel">inline</span></span> </td>
294 </tr>
295</table>
296</div><div class="memdoc">
297
298<p>Calculates L2 normalization between two inputs. </p>
299<dl class="params"><dt>Parameters</dt><dd>
300 <table class="params">
301 <tr><td class="paramdir">[in]</td><td class="paramname">a</td><td>First input. Supported data types: S16, S32 </td></tr>
302 <tr><td class="paramdir">[in]</td><td class="paramname">b</td><td>Second input. Supported data types: S16, S32</td></tr>
303 </table>
304 </dd>
305</dl>
306<dl class="section return"><dt>Returns</dt><dd>L2 normalization magnitude result. Supported data types: S16, S32 </dd></dl>
307
308<p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00045">45</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
309
310<p>References <a class="el" href="helpers_8h_source.xhtml#l00038">CONVERT_SAT</a>, <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, and <a class="el" href="helpers_8h_source.xhtml#l00032">VEC_DATA_TYPE</a>.</p>
311<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; <span class="keywordflow">return</span> <a class="code" href="helpers_8h.xhtml#a23fb01b6f3453cc0e48a026fd44f6acd">CONVERT_SAT</a>((sqrt(convert_float16((convert_uint16(a * a) + convert_uint16(b * b)))) + 0.5f),</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</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="l00049"></a><span class="lineno"> 49</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>
312<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>
313<div class="ttc" id="helpers_8h_xhtml_a23fb01b6f3453cc0e48a026fd44f6acd"><div class="ttname"><a href="helpers_8h.xhtml#a23fb01b6f3453cc0e48a026fd44f6acd">CONVERT_SAT</a></div><div class="ttdeci">#define CONVERT_SAT(x, type)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00038">helpers.h:38</a></div></div>
314</div><!-- fragment -->
315</div>
316</div>
317<a class="anchor" id="a76ac02e1f05a26f67090c9464434e04a"></a>
318<div class="memitem">
319<div class="memproto">
320 <table class="memname">
321 <tr>
322 <td class="memname">__kernel void magnitude_phase </td>
323 <td>(</td>
324 <td class="paramtype">__global uchar *&#160;</td>
325 <td class="paramname"><em>gx_ptr</em>, </td>
326 </tr>
327 <tr>
328 <td class="paramkey"></td>
329 <td></td>
330 <td class="paramtype">uint&#160;</td>
331 <td class="paramname"><em>gx_stride_x</em>, </td>
332 </tr>
333 <tr>
334 <td class="paramkey"></td>
335 <td></td>
336 <td class="paramtype">uint&#160;</td>
337 <td class="paramname"><em>gx_step_x</em>, </td>
338 </tr>
339 <tr>
340 <td class="paramkey"></td>
341 <td></td>
342 <td class="paramtype">uint&#160;</td>
343 <td class="paramname"><em>gx_stride_y</em>, </td>
344 </tr>
345 <tr>
346 <td class="paramkey"></td>
347 <td></td>
348 <td class="paramtype">uint&#160;</td>
349 <td class="paramname"><em>gx_step_y</em>, </td>
350 </tr>
351 <tr>
352 <td class="paramkey"></td>
353 <td></td>
354 <td class="paramtype">uint&#160;</td>
355 <td class="paramname"><em>gx_offset_first_element_in_bytes</em>, </td>
356 </tr>
357 <tr>
358 <td class="paramkey"></td>
359 <td></td>
360 <td class="paramtype">__global uchar *&#160;</td>
361 <td class="paramname"><em>gy_ptr</em>, </td>
362 </tr>
363 <tr>
364 <td class="paramkey"></td>
365 <td></td>
366 <td class="paramtype">uint&#160;</td>
367 <td class="paramname"><em>gy_stride_x</em>, </td>
368 </tr>
369 <tr>
370 <td class="paramkey"></td>
371 <td></td>
372 <td class="paramtype">uint&#160;</td>
373 <td class="paramname"><em>gy_step_x</em>, </td>
374 </tr>
375 <tr>
376 <td class="paramkey"></td>
377 <td></td>
378 <td class="paramtype">uint&#160;</td>
379 <td class="paramname"><em>gy_stride_y</em>, </td>
380 </tr>
381 <tr>
382 <td class="paramkey"></td>
383 <td></td>
384 <td class="paramtype">uint&#160;</td>
385 <td class="paramname"><em>gy_step_y</em>, </td>
386 </tr>
387 <tr>
388 <td class="paramkey"></td>
389 <td></td>
390 <td class="paramtype">uint&#160;</td>
391 <td class="paramname"><em>gy_offset_first_element_in_bytes</em>, </td>
392 </tr>
393 <tr>
394 <td class="paramkey"></td>
395 <td></td>
396 <td class="paramtype">__global uchar *&#160;</td>
397 <td class="paramname"><em>magnitude_ptr</em>, </td>
398 </tr>
399 <tr>
400 <td class="paramkey"></td>
401 <td></td>
402 <td class="paramtype">uint&#160;</td>
403 <td class="paramname"><em>magnitude_stride_x</em>, </td>
404 </tr>
405 <tr>
406 <td class="paramkey"></td>
407 <td></td>
408 <td class="paramtype">uint&#160;</td>
409 <td class="paramname"><em>magnitude_step_x</em>, </td>
410 </tr>
411 <tr>
412 <td class="paramkey"></td>
413 <td></td>
414 <td class="paramtype">uint&#160;</td>
415 <td class="paramname"><em>magnitude_stride_y</em>, </td>
416 </tr>
417 <tr>
418 <td class="paramkey"></td>
419 <td></td>
420 <td class="paramtype">uint&#160;</td>
421 <td class="paramname"><em>magnitude_step_y</em>, </td>
422 </tr>
423 <tr>
424 <td class="paramkey"></td>
425 <td></td>
426 <td class="paramtype">uint&#160;</td>
427 <td class="paramname"><em>magnitude_offset_first_element_in_bytes</em>, </td>
428 </tr>
429 <tr>
430 <td class="paramkey"></td>
431 <td></td>
432 <td class="paramtype">__global uchar *&#160;</td>
433 <td class="paramname"><em>phase_ptr</em>, </td>
434 </tr>
435 <tr>
436 <td class="paramkey"></td>
437 <td></td>
438 <td class="paramtype">uint&#160;</td>
439 <td class="paramname"><em>phase_stride_x</em>, </td>
440 </tr>
441 <tr>
442 <td class="paramkey"></td>
443 <td></td>
444 <td class="paramtype">uint&#160;</td>
445 <td class="paramname"><em>phase_step_x</em>, </td>
446 </tr>
447 <tr>
448 <td class="paramkey"></td>
449 <td></td>
450 <td class="paramtype">uint&#160;</td>
451 <td class="paramname"><em>phase_stride_y</em>, </td>
452 </tr>
453 <tr>
454 <td class="paramkey"></td>
455 <td></td>
456 <td class="paramtype">uint&#160;</td>
457 <td class="paramname"><em>phase_step_y</em>, </td>
458 </tr>
459 <tr>
460 <td class="paramkey"></td>
461 <td></td>
462 <td class="paramtype">uint&#160;</td>
463 <td class="paramname"><em>phase_offset_first_element_in_bytes</em>&#160;</td>
464 </tr>
465 <tr>
466 <td></td>
467 <td>)</td>
468 <td></td><td></td>
469 </tr>
470 </table>
471</div><div class="memdoc">
472
473<p>Calculate the magnitude and phase of given the gradients of an image. </p>
474<dl class="section note"><dt>Note</dt><dd>Magnitude calculation supported: L1 normalization(type = 1) and L2 normalization(type = 2). </dd>
475<dd>
476Phase calculation supported: Unsigned(type = 1) [0,128] and Signed(type = 2) [0,256).</dd></dl>
477<dl class="section attention"><dt>Attention</dt><dd>To enable phase calculation -DPHASE="phase_calculation_type_id" must be provided at compile time. eg -DPHASE=1 </dd>
478<dd>
479To enable magnitude calculation -DMAGNITUDE="magnitude_calculation_type_id" must be provided at compile time. eg -DMAGNITUDE=1 </dd>
480<dd>
481Datatype of the two inputs is passed at compile time using -DDATA_TYPE. e.g -DDATA_TYPE=short. Supported data_types are: short and int</dd></dl>
482<dl class="params"><dt>Parameters</dt><dd>
483 <table class="params">
484 <tr><td class="paramdir">[in]</td><td class="paramname">gx_ptr</td><td>Pointer to the first source image (gradient X). Supported data types: S16, S32 </td></tr>
485 <tr><td class="paramdir">[in]</td><td class="paramname">gx_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
486 <tr><td class="paramdir">[in]</td><td class="paramname">gx_step_x</td><td>gx_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
487 <tr><td class="paramdir">[in]</td><td class="paramname">gx_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
488 <tr><td class="paramdir">[in]</td><td class="paramname">gx_step_y</td><td>gx_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
489 <tr><td class="paramdir">[in]</td><td class="paramname">gx_offset_first_element_in_bytes</td><td>The offset of the first element in the source image </td></tr>
490 <tr><td class="paramdir">[in]</td><td class="paramname">gy_ptr</td><td>Pointer to the second source image (gradient Y) . Supported data types: S16, S32 </td></tr>
491 <tr><td class="paramdir">[in]</td><td class="paramname">gy_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
492 <tr><td class="paramdir">[in]</td><td class="paramname">gy_step_x</td><td>gy_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
493 <tr><td class="paramdir">[in]</td><td class="paramname">gy_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
494 <tr><td class="paramdir">[in]</td><td class="paramname">gy_step_y</td><td>gy_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
495 <tr><td class="paramdir">[in]</td><td class="paramname">gy_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr>
496 <tr><td class="paramdir">[out]</td><td class="paramname">magnitude_ptr</td><td>Pointer to the magnitude destination image. Supported data types: S16, S32 </td></tr>
497 <tr><td class="paramdir">[in]</td><td class="paramname">magnitude_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
498 <tr><td class="paramdir">[in]</td><td class="paramname">magnitude_step_x</td><td>magnitude_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
499 <tr><td class="paramdir">[in]</td><td class="paramname">magnitude_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
500 <tr><td class="paramdir">[in]</td><td class="paramname">magnitude_step_y</td><td>magnitude_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
501 <tr><td class="paramdir">[in]</td><td class="paramname">magnitude_offset_first_element_in_bytes</td><td>The offset of the first element in the source image </td></tr>
502 <tr><td class="paramdir">[out]</td><td class="paramname">phase_ptr</td><td>Pointer to the phase destination image. Supported data types: U8 </td></tr>
503 <tr><td class="paramdir">[in]</td><td class="paramname">phase_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
504 <tr><td class="paramdir">[in]</td><td class="paramname">phase_step_x</td><td>phase_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
505 <tr><td class="paramdir">[in]</td><td class="paramname">phase_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
506 <tr><td class="paramdir">[in]</td><td class="paramname">phase_step_y</td><td>phase_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
507 <tr><td class="paramdir">[in]</td><td class="paramname">phase_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr>
508 </table>
509 </dd>
510</dl>
511
Anthony Barbierdbdab852017-06-23 15:42:00 +0100[diff] [blame^]512<p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00130">130</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]513
Anthony Barbierdbdab852017-06-23 15:42:00 +0100[diff] [blame^]514<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>, <a class="el" href="magnitude__phase_8cl_source.xhtml#l00081">MAGNITUDE_OP</a>, <a class="el" href="magnitude__phase_8cl_source.xhtml#l00089">PHASE_OP</a>, <a class="el" href="helpers_8h_source.xhtml#l00097">Image::ptr</a>, and <a class="el" href="helpers_8h_source.xhtml#l00032">VEC_DATA_TYPE</a>.</p>
515<div class="fragment"><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; <span class="comment">// Get pixels pointer</span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> gx = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(gx);</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> gy = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(gy);</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; <span class="comment">// Load values</span></div><div class="line"><a name="l00148"></a><span class="lineno"> 148</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="l00149"></a><span class="lineno"> 149</span>&#160; in_a = vload16(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)gx.ptr);</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</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="l00151"></a><span class="lineno"> 151</span>&#160; in_b = vload16(0, (__global DATA_TYPE *)gy.ptr);</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160;</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; <span class="comment">// Calculate and store the results</span></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160;<span class="preprocessor">#ifdef MAGNITUDE</span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> magnitude = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(magnitude);</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; vstore16(<a class="code" href="magnitude__phase_8cl.xhtml#a259a59d7a4f247119c457af235827a29">MAGNITUDE_OP</a>(in_a, in_b), 0, (__global DATA_TYPE *)magnitude.ptr);</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160;<span class="preprocessor">#ifdef PHASE</span></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> phase = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(phase);</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; vstore16(<a class="code" href="magnitude__phase_8cl.xhtml#a4434551334149479f843f87424bbb8c8">PHASE_OP</a>(in_a, in_b), 0, phase.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</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="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 +0000[diff] [blame]516<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>
517<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>
518<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>
519<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>
Anthony Barbierdbdab852017-06-23 15:42:00 +0100[diff] [blame^]520<div class="ttc" id="magnitude__phase_8cl_xhtml_a4434551334149479f843f87424bbb8c8"><div class="ttname"><a href="magnitude__phase_8cl.xhtml#a4434551334149479f843f87424bbb8c8">PHASE_OP</a></div><div class="ttdeci">#define PHASE_OP(x, y)</div><div class="ttdef"><b>Definition:</b> <a href="magnitude__phase_8cl_source.xhtml#l00089">magnitude_phase.cl:89</a></div></div>
521<div class="ttc" id="magnitude__phase_8cl_xhtml_a259a59d7a4f247119c457af235827a29"><div class="ttname"><a href="magnitude__phase_8cl.xhtml#a259a59d7a4f247119c457af235827a29">MAGNITUDE_OP</a></div><div class="ttdeci">#define MAGNITUDE_OP(x, y)</div><div class="ttdef"><b>Definition:</b> <a href="magnitude__phase_8cl_source.xhtml#l00081">magnitude_phase.cl:81</a></div></div>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]522</div><!-- fragment -->
523</div>
524</div>
525<a class="anchor" id="a02ff978b574e44604d625dbd470ab870"></a>
526<div class="memitem">
527<div class="memproto">
528<table class="mlabels">
529 <tr>
530 <td class="mlabels-left">
531 <table class="memname">
532 <tr>
533 <td class="memname">uchar16 phase_signed </td>
534 <td>(</td>
535 <td class="paramtype">DATA_TYPE16&#160;</td>
536 <td class="paramname"><em>a</em>, </td>
537 </tr>
538 <tr>
539 <td class="paramkey"></td>
540 <td></td>
541 <td class="paramtype">DATA_TYPE16&#160;</td>
542 <td class="paramname"><em>b</em>&#160;</td>
543 </tr>
544 <tr>
545 <td></td>
546 <td>)</td>
547 <td></td><td></td>
548 </tr>
549 </table>
550 </td>
551 <td class="mlabels-right">
552<span class="mlabels"><span class="mlabel">inline</span></span> </td>
553 </tr>
554</table>
555</div><div class="memdoc">
556
557<p>Calculates signed phase between two inputs. </p>
558<dl class="params"><dt>Parameters</dt><dd>
559 <table class="params">
560 <tr><td class="paramdir">[in]</td><td class="paramname">a</td><td>First input. Supported data types: S16, S32 </td></tr>
561 <tr><td class="paramdir">[in]</td><td class="paramname">b</td><td>Second input. Supported data types: S16, S32</td></tr>
562 </table>
563 </dd>
564</dl>
565<dl class="section return"><dt>Returns</dt><dd>Signed phase mapped in the interval [0, 256). Supported data types: U8 </dd></dl>
566
Anthony Barbierdbdab852017-06-23 15:42:00 +0100[diff] [blame^]567<p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00072">72</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
568<div class="fragment"><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160;{</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; float16 arct = atan2pi(convert_float16(b), convert_float16(a));</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; arct = select(arct, arct + 2, arct &lt; 0.0f);</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="keywordflow">return</span> convert_uchar16(convert_int16(mad(arct, 128, 0.5f)) &amp; 0xFFu);</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;}</div></div><!-- fragment -->
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]569</div>
570</div>
571<a class="anchor" id="ab0d7e891c8a09824c46baa2393d6961f"></a>
572<div class="memitem">
573<div class="memproto">
574<table class="mlabels">
575 <tr>
576 <td class="mlabels-left">
577 <table class="memname">
578 <tr>
579 <td class="memname">uchar16 phase_unsigned </td>
580 <td>(</td>
581 <td class="paramtype">DATA_TYPE16&#160;</td>
582 <td class="paramname"><em>a</em>, </td>
583 </tr>
584 <tr>
585 <td class="paramkey"></td>
586 <td></td>
587 <td class="paramtype">DATA_TYPE16&#160;</td>
588 <td class="paramname"><em>b</em>&#160;</td>
589 </tr>
590 <tr>
591 <td></td>
592 <td>)</td>
593 <td></td><td></td>
594 </tr>
595 </table>
596 </td>
597 <td class="mlabels-right">
598<span class="mlabels"><span class="mlabel">inline</span></span> </td>
599 </tr>
600</table>
601</div><div class="memdoc">
602
603<p>Calculates unsigned phase between two inputs. </p>
604<dl class="params"><dt>Parameters</dt><dd>
605 <table class="params">
606 <tr><td class="paramdir">[in]</td><td class="paramname">a</td><td>First input. Supported data types: S16, S32 </td></tr>
607 <tr><td class="paramdir">[in]</td><td class="paramname">b</td><td>Second input. Supported data types: S16, S32</td></tr>
608 </table>
609 </dd>
610</dl>
611<dl class="section return"><dt>Returns</dt><dd>Unsigned phase mapped in the interval [0, 180]. Supported data types: U8 </dd></dl>
612
613<p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00058">58</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
Anthony Barbierdbdab852017-06-23 15:42:00 +0100[diff] [blame^]614<div class="fragment"><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;{</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; float16 angle_deg_f32 = atan2pi(convert_float16(b), convert_float16(a)) * (float16)180.0f;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; angle_deg_f32 = select(angle_deg_f32, (float16)180.0f + angle_deg_f32, angle_deg_f32 &lt; (float16)0.0f);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <span class="keywordflow">return</span> convert_uchar16(angle_deg_f32);</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;}</div></div><!-- fragment -->
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]615</div>
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