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gerrit-public.fairphone.software / platform / external / ComputeLibrary / 871448ee8eff790c4ccc3250008dd71170cc78b2 / . / documentation / magnitude__phase_8cl.xhtml
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114<div class="header">
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116<a href="#define-members">Macros</a> &#124;
117<a href="#func-members">Functions</a> </div>
118 <div class="headertitle">
119<div class="title">magnitude_phase.cl File Reference</div> </div>
120</div><!--header-->
121<div class="contents">
122<div class="textblock"><code>#include &quot;<a class="el" href="helpers_8h_source.xhtml">helpers.h</a>&quot;</code><br />
123</div>
124<p><a href="magnitude__phase_8cl_source.xhtml">Go to the source code of this file.</a></p>
125<table class="memberdecls">
126<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
127Macros</h2></td></tr>
128<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>
129<tr class="separator:a259a59d7a4f247119c457af235827a29"><td class="memSeparator" colspan="2">&#160;</td></tr>
130<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>
131<tr class="separator:a4434551334149479f843f87424bbb8c8"><td class="memSeparator" colspan="2">&#160;</td></tr>
132</table><table class="memberdecls">
133<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
134Functions</h2></td></tr>
135<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>
136<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>
137<tr class="separator:aedc7e5ee4cb8f5a0240e422f9a9e7ce9"><td class="memSeparator" colspan="2">&#160;</td></tr>
138<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>
139<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>
140<tr class="separator:aec9387519a61474acb0b2bf90ef6d94d"><td class="memSeparator" colspan="2">&#160;</td></tr>
141<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>
142<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>
143<tr class="separator:ab0d7e891c8a09824c46baa2393d6961f"><td class="memSeparator" colspan="2">&#160;</td></tr>
144<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>
145<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>
146<tr class="separator:a02ff978b574e44604d625dbd470ab870"><td class="memSeparator" colspan="2">&#160;</td></tr>
147<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>
148<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>
149<tr class="separator:a76ac02e1f05a26f67090c9464434e04a"><td class="memSeparator" colspan="2">&#160;</td></tr>
150</table>
151<h2 class="groupheader">Macro Definition Documentation</h2>
152<a class="anchor" id="a259a59d7a4f247119c457af235827a29"></a>
153<div class="memitem">
154<div class="memproto">
155 <table class="memname">
156 <tr>
157 <td class="memname">#define MAGNITUDE_OP</td>
158 <td>(</td>
159 <td class="paramtype">&#160;</td>
160 <td class="paramname">x, </td>
161 </tr>
162 <tr>
163 <td class="paramkey"></td>
164 <td></td>
165 <td class="paramtype">&#160;</td>
166 <td class="paramname">y&#160;</td>
167 </tr>
168 <tr>
169 <td></td>
170 <td>)</td>
171 <td></td><td>&#160;&#160;&#160;<a class="el" href="magnitude__phase_8cl.xhtml#aedc7e5ee4cb8f5a0240e422f9a9e7ce9">magnitude_l1</a>((x), (y))</td>
172 </tr>
173 </table>
174</div><div class="memdoc">
175
176<p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00082">82</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
177
178<p>Referenced by <a class="el" href="magnitude__phase_8cl_source.xhtml#l00131">magnitude_phase()</a>.</p>
179
180</div>
181</div>
182<a class="anchor" id="a4434551334149479f843f87424bbb8c8"></a>
183<div class="memitem">
184<div class="memproto">
185 <table class="memname">
186 <tr>
187 <td class="memname">#define PHASE_OP</td>
188 <td>(</td>
189 <td class="paramtype">&#160;</td>
190 <td class="paramname">x, </td>
191 </tr>
192 <tr>
193 <td class="paramkey"></td>
194 <td></td>
195 <td class="paramtype">&#160;</td>
196 <td class="paramname">y&#160;</td>
197 </tr>
198 <tr>
199 <td></td>
200 <td>)</td>
201 <td></td><td>&#160;&#160;&#160;<a class="el" href="magnitude__phase_8cl.xhtml#ab0d7e891c8a09824c46baa2393d6961f">phase_unsigned</a>((x), (y))</td>
202 </tr>
203 </table>
204</div><div class="memdoc">
205
206<p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00090">90</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
207
208<p>Referenced by <a class="el" href="magnitude__phase_8cl_source.xhtml#l00131">magnitude_phase()</a>.</p>
209
210</div>
211</div>
212<h2 class="groupheader">Function Documentation</h2>
213<a class="anchor" id="aedc7e5ee4cb8f5a0240e422f9a9e7ce9"></a>
214<div class="memitem">
215<div class="memproto">
216<table class="mlabels">
217 <tr>
218 <td class="mlabels-left">
219 <table class="memname">
220 <tr>
221 <td class="memname">DATA_TYPE16 magnitude_l1 </td>
222 <td>(</td>
223 <td class="paramtype">DATA_TYPE16&#160;</td>
224 <td class="paramname"><em>a</em>, </td>
225 </tr>
226 <tr>
227 <td class="paramkey"></td>
228 <td></td>
229 <td class="paramtype">DATA_TYPE16&#160;</td>
230 <td class="paramname"><em>b</em>&#160;</td>
231 </tr>
232 <tr>
233 <td></td>
234 <td>)</td>
235 <td></td><td></td>
236 </tr>
237 </table>
238 </td>
239 <td class="mlabels-right">
240<span class="mlabels"><span class="mlabel">inline</span></span> </td>
241 </tr>
242</table>
243</div><div class="memdoc">
244
245<p>Calculates L1 normalization between two inputs. </p>
246<dl class="params"><dt>Parameters</dt><dd>
247 <table class="params">
248 <tr><td class="paramdir">[in]</td><td class="paramname">a</td><td>First input. Supported data types: S16, S32 </td></tr>
249 <tr><td class="paramdir">[in]</td><td class="paramname">b</td><td>Second input. Supported data types: S16, S32</td></tr>
250 </table>
251 </dd>
252</dl>
253<dl class="section return"><dt>Returns</dt><dd>L1 normalization magnitude result. Supported data types: S16, S32 </dd></dl>
254
255<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>
256
257<p>References <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>
258<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(abs(a), abs(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>
259<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>
260<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>
261</div><!-- fragment -->
262</div>
263</div>
264<a class="anchor" id="aec9387519a61474acb0b2bf90ef6d94d"></a>
265<div class="memitem">
266<div class="memproto">
267<table class="mlabels">
268 <tr>
269 <td class="mlabels-left">
270 <table class="memname">
271 <tr>
272 <td class="memname">DATA_TYPE16 magnitude_l2 </td>
273 <td>(</td>
274 <td class="paramtype">int16&#160;</td>
275 <td class="paramname"><em>a</em>, </td>
276 </tr>
277 <tr>
278 <td class="paramkey"></td>
279 <td></td>
280 <td class="paramtype">int16&#160;</td>
281 <td class="paramname"><em>b</em>&#160;</td>
282 </tr>
283 <tr>
284 <td></td>
285 <td>)</td>
286 <td></td><td></td>
287 </tr>
288 </table>
289 </td>
290 <td class="mlabels-right">
291<span class="mlabels"><span class="mlabel">inline</span></span> </td>
292 </tr>
293</table>
294</div><div class="memdoc">
295
296<p>Calculates L2 normalization between two inputs. </p>
297<dl class="params"><dt>Parameters</dt><dd>
298 <table class="params">
299 <tr><td class="paramdir">[in]</td><td class="paramname">a</td><td>First input. Supported data types: S16, S32 </td></tr>
300 <tr><td class="paramdir">[in]</td><td class="paramname">b</td><td>Second input. Supported data types: S16, S32</td></tr>
301 </table>
302 </dd>
303</dl>
304<dl class="section return"><dt>Returns</dt><dd>L2 normalization magnitude result. Supported data types: S16, S32 </dd></dl>
305
306<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>
307
308<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>
309<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>
310<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>
311<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>
312</div><!-- fragment -->
313</div>
314</div>
315<a class="anchor" id="a76ac02e1f05a26f67090c9464434e04a"></a>
316<div class="memitem">
317<div class="memproto">
318 <table class="memname">
319 <tr>
320 <td class="memname">__kernel void magnitude_phase </td>
321 <td>(</td>
322 <td class="paramtype">__global uchar *&#160;</td>
323 <td class="paramname"><em>gx_ptr</em>, </td>
324 </tr>
325 <tr>
326 <td class="paramkey"></td>
327 <td></td>
328 <td class="paramtype">uint&#160;</td>
329 <td class="paramname"><em>gx_stride_x</em>, </td>
330 </tr>
331 <tr>
332 <td class="paramkey"></td>
333 <td></td>
334 <td class="paramtype">uint&#160;</td>
335 <td class="paramname"><em>gx_step_x</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>gx_stride_y</em>, </td>
342 </tr>
343 <tr>
344 <td class="paramkey"></td>
345 <td></td>
346 <td class="paramtype">uint&#160;</td>
347 <td class="paramname"><em>gx_step_y</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>gx_offset_first_element_in_bytes</em>, </td>
354 </tr>
355 <tr>
356 <td class="paramkey"></td>
357 <td></td>
358 <td class="paramtype">__global uchar *&#160;</td>
359 <td class="paramname"><em>gy_ptr</em>, </td>
360 </tr>
361 <tr>
362 <td class="paramkey"></td>
363 <td></td>
364 <td class="paramtype">uint&#160;</td>
365 <td class="paramname"><em>gy_stride_x</em>, </td>
366 </tr>
367 <tr>
368 <td class="paramkey"></td>
369 <td></td>
370 <td class="paramtype">uint&#160;</td>
371 <td class="paramname"><em>gy_step_x</em>, </td>
372 </tr>
373 <tr>
374 <td class="paramkey"></td>
375 <td></td>
376 <td class="paramtype">uint&#160;</td>
377 <td class="paramname"><em>gy_stride_y</em>, </td>
378 </tr>
379 <tr>
380 <td class="paramkey"></td>
381 <td></td>
382 <td class="paramtype">uint&#160;</td>
383 <td class="paramname"><em>gy_step_y</em>, </td>
384 </tr>
385 <tr>
386 <td class="paramkey"></td>
387 <td></td>
388 <td class="paramtype">uint&#160;</td>
389 <td class="paramname"><em>gy_offset_first_element_in_bytes</em>, </td>
390 </tr>
391 <tr>
392 <td class="paramkey"></td>
393 <td></td>
394 <td class="paramtype">__global uchar *&#160;</td>
395 <td class="paramname"><em>magnitude_ptr</em>, </td>
396 </tr>
397 <tr>
398 <td class="paramkey"></td>
399 <td></td>
400 <td class="paramtype">uint&#160;</td>
401 <td class="paramname"><em>magnitude_stride_x</em>, </td>
402 </tr>
403 <tr>
404 <td class="paramkey"></td>
405 <td></td>
406 <td class="paramtype">uint&#160;</td>
407 <td class="paramname"><em>magnitude_step_x</em>, </td>
408 </tr>
409 <tr>
410 <td class="paramkey"></td>
411 <td></td>
412 <td class="paramtype">uint&#160;</td>
413 <td class="paramname"><em>magnitude_stride_y</em>, </td>
414 </tr>
415 <tr>
416 <td class="paramkey"></td>
417 <td></td>
418 <td class="paramtype">uint&#160;</td>
419 <td class="paramname"><em>magnitude_step_y</em>, </td>
420 </tr>
421 <tr>
422 <td class="paramkey"></td>
423 <td></td>
424 <td class="paramtype">uint&#160;</td>
425 <td class="paramname"><em>magnitude_offset_first_element_in_bytes</em>, </td>
426 </tr>
427 <tr>
428 <td class="paramkey"></td>
429 <td></td>
430 <td class="paramtype">__global uchar *&#160;</td>
431 <td class="paramname"><em>phase_ptr</em>, </td>
432 </tr>
433 <tr>
434 <td class="paramkey"></td>
435 <td></td>
436 <td class="paramtype">uint&#160;</td>
437 <td class="paramname"><em>phase_stride_x</em>, </td>
438 </tr>
439 <tr>
440 <td class="paramkey"></td>
441 <td></td>
442 <td class="paramtype">uint&#160;</td>
443 <td class="paramname"><em>phase_step_x</em>, </td>
444 </tr>
445 <tr>
446 <td class="paramkey"></td>
447 <td></td>
448 <td class="paramtype">uint&#160;</td>
449 <td class="paramname"><em>phase_stride_y</em>, </td>
450 </tr>
451 <tr>
452 <td class="paramkey"></td>
453 <td></td>
454 <td class="paramtype">uint&#160;</td>
455 <td class="paramname"><em>phase_step_y</em>, </td>
456 </tr>
457 <tr>
458 <td class="paramkey"></td>
459 <td></td>
460 <td class="paramtype">uint&#160;</td>
461 <td class="paramname"><em>phase_offset_first_element_in_bytes</em>&#160;</td>
462 </tr>
463 <tr>
464 <td></td>
465 <td>)</td>
466 <td></td><td></td>
467 </tr>
468 </table>
469</div><div class="memdoc">
470
471<p>Calculate the magnitude and phase of given the gradients of an image. </p>
472<dl class="section note"><dt>Note</dt><dd>Magnitude calculation supported: L1 normalization(type = 1) and L2 normalization(type = 2). </dd>
473<dd>
474Phase calculation supported: Unsigned(type = 1) [0,128] and Signed(type = 2) [0,256).</dd></dl>
475<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>
476<dd>
477To enable magnitude calculation -DMAGNITUDE="magnitude_calculation_type_id" must be provided at compile time. eg -DMAGNITUDE=1 </dd>
478<dd>
479Datatype 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>
480<dl class="params"><dt>Parameters</dt><dd>
481 <table class="params">
482 <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>
483 <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>
484 <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>
485 <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>
486 <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>
487 <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>
488 <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>
489 <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>
490 <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>
491 <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>
492 <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>
493 <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>
494 <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>
495 <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>
496 <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>
497 <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>
498 <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>
499 <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>
500 <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>
501 <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>
502 <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>
503 <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>
504 <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>
505 <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>
506 </table>
507 </dd>
508</dl>
509
510<p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00131">131</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
511
512<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#l00082">MAGNITUDE_OP</a>, <a class="el" href="magnitude__phase_8cl_source.xhtml#l00090">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>
513<div class="fragment"><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160;{</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; <span class="comment">// Get pixels pointer</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</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="l00146"></a><span class="lineno"> 146</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="l00147"></a><span class="lineno"> 147</span>&#160;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; <span class="comment">// Load values</span></div><div class="line"><a name="l00149"></a><span class="lineno"> 149</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="l00150"></a><span class="lineno"> 150</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="l00151"></a><span class="lineno"> 151</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="l00152"></a><span class="lineno"> 152</span>&#160; in_b = vload16(0, (__global DATA_TYPE *)gy.ptr);</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; <span class="comment">// Calculate and store the results</span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160;<span class="preprocessor">#ifdef MAGNITUDE</span></div><div class="line"><a name="l00156"></a><span class="lineno"> 156</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="l00157"></a><span class="lineno"> 157</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="l00158"></a><span class="lineno"> 158</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160;<span class="preprocessor">#ifdef PHASE</span></div><div class="line"><a name="l00160"></a><span class="lineno"> 160</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="l00161"></a><span class="lineno"> 161</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="l00162"></a><span class="lineno"> 162</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00163"></a><span class="lineno"> 163</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>
514<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>
515<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>
516<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>
517<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>
518<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#l00090">magnitude_phase.cl:90</a></div></div>
519<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#l00082">magnitude_phase.cl:82</a></div></div>
520</div><!-- fragment -->
521</div>
522</div>
523<a class="anchor" id="a02ff978b574e44604d625dbd470ab870"></a>
524<div class="memitem">
525<div class="memproto">
526<table class="mlabels">
527 <tr>
528 <td class="mlabels-left">
529 <table class="memname">
530 <tr>
531 <td class="memname">uchar16 phase_signed </td>
532 <td>(</td>
533 <td class="paramtype">DATA_TYPE16&#160;</td>
534 <td class="paramname"><em>a</em>, </td>
535 </tr>
536 <tr>
537 <td class="paramkey"></td>
538 <td></td>
539 <td class="paramtype">DATA_TYPE16&#160;</td>
540 <td class="paramname"><em>b</em>&#160;</td>
541 </tr>
542 <tr>
543 <td></td>
544 <td>)</td>
545 <td></td><td></td>
546 </tr>
547 </table>
548 </td>
549 <td class="mlabels-right">
550<span class="mlabels"><span class="mlabel">inline</span></span> </td>
551 </tr>
552</table>
553</div><div class="memdoc">
554
555<p>Calculates signed phase between two inputs. </p>
556<dl class="params"><dt>Parameters</dt><dd>
557 <table class="params">
558 <tr><td class="paramdir">[in]</td><td class="paramname">a</td><td>First input. Supported data types: S16, S32 </td></tr>
559 <tr><td class="paramdir">[in]</td><td class="paramname">b</td><td>Second input. Supported data types: S16, S32</td></tr>
560 </table>
561 </dd>
562</dl>
563<dl class="section return"><dt>Returns</dt><dd>Signed phase mapped in the interval [0, 256). Supported data types: U8 </dd></dl>
564
565<p>Definition at line <a class="el" href="magnitude__phase_8cl_source.xhtml#l00073">73</a> of file <a class="el" href="magnitude__phase_8cl_source.xhtml">magnitude_phase.cl</a>.</p>
566<div class="fragment"><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160;{</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; float16 arct = atan2pi(convert_float16(b), convert_float16(a));</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; arct = select(arct, arct + 2, arct &lt; 0.0f);</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="keywordflow">return</span> convert_uchar16(convert_int16(mad(arct, 128, 0.5f)) &amp; 0xFFu);</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;}</div></div><!-- fragment -->
567</div>
568</div>
569<a class="anchor" id="ab0d7e891c8a09824c46baa2393d6961f"></a>
570<div class="memitem">
571<div class="memproto">
572<table class="mlabels">
573 <tr>
574 <td class="mlabels-left">
575 <table class="memname">
576 <tr>
577 <td class="memname">uchar16 phase_unsigned </td>
578 <td>(</td>
579 <td class="paramtype">DATA_TYPE16&#160;</td>
580 <td class="paramname"><em>a</em>, </td>
581 </tr>
582 <tr>
583 <td class="paramkey"></td>
584 <td></td>
585 <td class="paramtype">DATA_TYPE16&#160;</td>
586 <td class="paramname"><em>b</em>&#160;</td>
587 </tr>
588 <tr>
589 <td></td>
590 <td>)</td>
591 <td></td><td></td>
592 </tr>
593 </table>
594 </td>
595 <td class="mlabels-right">
596<span class="mlabels"><span class="mlabel">inline</span></span> </td>
597 </tr>
598</table>
599</div><div class="memdoc">
600
601<p>Calculates unsigned phase between two inputs. </p>
602<dl class="params"><dt>Parameters</dt><dd>
603 <table class="params">
604 <tr><td class="paramdir">[in]</td><td class="paramname">a</td><td>First input. Supported data types: S16, S32 </td></tr>
605 <tr><td class="paramdir">[in]</td><td class="paramname">b</td><td>Second input. Supported data types: S16, S32</td></tr>
606 </table>
607 </dd>
608</dl>
609<dl class="section return"><dt>Returns</dt><dd>Unsigned phase mapped in the interval [0, 180]. Supported data types: U8 </dd></dl>
610
611<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>
612<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 arct = atan2pi(convert_float16(b), convert_float16(a));</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; arct = select(arct, arct + 2, arct &lt; 0.0f);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; <span class="keywordflow">return</span> convert_uchar16(convert_int16(mad(arct, 90, 0.5f)) &amp; 0xFFu);</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160;}</div></div><!-- fragment -->
613</div>
614</div>
615</div><!-- contents -->
616</div><!-- doc-content -->
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