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gerrit-public.fairphone.software / platform / external / ComputeLibrary / 52ba29e936b8e711e8acdfe819e36f884d4f3fe1 / . / documentation / remap_8cl.xhtml
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Anthony Barbierdbdab852017-06-23 15:42:00 +0100[diff] [blame]42 <div id="projectname">Compute Library
Jenkins52ba29e2018-08-29 15:32:11 +0000[diff] [blame^]43 &#160;<span id="projectnumber">18.08</span>
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115<div class="header">
116 <div class="summary">
117<a href="#func-members">Functions</a> </div>
118 <div class="headertitle">
119<div class="title">remap.cl File Reference</div> </div>
120</div><!--header-->
121<div class="contents">
Anthony Barbier8140e1e2017-12-14 23:48:46 +0000[diff] [blame]122<div class="textblock"><code>#include &quot;<a class="el" href="helpers_8h_source.xhtml">helpers.h</a>&quot;</code><br />
123<code>#include &quot;<a class="el" href="warp__helpers_8h_source.xhtml">warp_helpers.h</a>&quot;</code><br />
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]124</div>
125<p><a href="remap_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="func-members"></a>
128Functions</h2></td></tr>
Jenkins52ba29e2018-08-29 15:32:11 +0000[diff] [blame^]129<tr class="memitem:a786803611cc128275d32d9584376713e"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="remap_8cl.xhtml#a786803611cc128275d32d9584376713e">remap_nearest_neighbour</a> (__global uchar *in_ptr, uint <a class="el" href="depthwise__convolution_8cl.xhtml#a5447e2c4e1aae8fff9290b775fe813ff">in_stride_x</a>, uint in_step_x, uint <a class="el" href="depthwise__convolution_8cl.xhtml#ac353c0687abd8c71a4fa096d322b39ec">in_stride_y</a>, uint in_step_y, uint in_offset_first_element_in_bytes, __global uchar *out_ptr, uint <a class="el" href="depthwise__convolution_8cl.xhtml#a68fce1f0ee4080ed89c9427496d625f2">out_stride_x</a>, uint out_step_x, uint <a class="el" href="depthwise__convolution_8cl.xhtml#ac8b6b732372937bba276e6391944d1e1">out_stride_y</a>, uint out_step_y, uint out_offset_first_element_in_bytes, __global uchar *mapx_ptr, uint mapx_stride_x, uint mapx_step_x, uint mapx_stride_y, uint mapx_step_y, uint mapx_offset_first_element_in_bytes, __global uchar *mapy_ptr, uint mapy_stride_x, uint mapy_step_x, uint mapy_stride_y, uint mapy_step_y, uint mapy_offset_first_element_in_bytes, const float width, const float height)</td></tr>
Anthony Barbier8140e1e2017-12-14 23:48:46 +0000[diff] [blame]130<tr class="memdesc:a786803611cc128275d32d9584376713e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Performs a remapping of an input image to an output given two remapping image using nearest neighbor as interpolation. <a href="#a786803611cc128275d32d9584376713e">More...</a><br /></td></tr>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]131<tr class="separator:a786803611cc128275d32d9584376713e"><td class="memSeparator" colspan="2">&#160;</td></tr>
Jenkins52ba29e2018-08-29 15:32:11 +0000[diff] [blame^]132<tr class="memitem:a1d771133d1dfea450fdbacda1c34ce49"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="remap_8cl.xhtml#a1d771133d1dfea450fdbacda1c34ce49">remap_bilinear</a> (__global uchar *in_ptr, uint <a class="el" href="depthwise__convolution_8cl.xhtml#a5447e2c4e1aae8fff9290b775fe813ff">in_stride_x</a>, uint in_step_x, uint <a class="el" href="depthwise__convolution_8cl.xhtml#ac353c0687abd8c71a4fa096d322b39ec">in_stride_y</a>, uint in_step_y, uint in_offset_first_element_in_bytes, __global uchar *out_ptr, uint <a class="el" href="depthwise__convolution_8cl.xhtml#a68fce1f0ee4080ed89c9427496d625f2">out_stride_x</a>, uint out_step_x, uint <a class="el" href="depthwise__convolution_8cl.xhtml#ac8b6b732372937bba276e6391944d1e1">out_stride_y</a>, uint out_step_y, uint out_offset_first_element_in_bytes, __global uchar *mapx_ptr, uint mapx_stride_x, uint mapx_step_x, uint mapx_stride_y, uint mapx_step_y, uint mapx_offset_first_element_in_bytes, __global uchar *mapy_ptr, uint mapy_stride_x, uint mapy_step_x, uint mapy_stride_y, uint mapy_step_y, uint mapy_offset_first_element_in_bytes, const float width, const float height)</td></tr>
Anthony Barbier8140e1e2017-12-14 23:48:46 +0000[diff] [blame]133<tr class="memdesc:a1d771133d1dfea450fdbacda1c34ce49"><td class="mdescLeft">&#160;</td><td class="mdescRight">Performs a remapping of an input image to an output given two remapping image using bilinear as interpolation. <a href="#a1d771133d1dfea450fdbacda1c34ce49">More...</a><br /></td></tr>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]134<tr class="separator:a1d771133d1dfea450fdbacda1c34ce49"><td class="memSeparator" colspan="2">&#160;</td></tr>
135</table>
136<h2 class="groupheader">Function Documentation</h2>
137<a class="anchor" id="a1d771133d1dfea450fdbacda1c34ce49"></a>
138<div class="memitem">
139<div class="memproto">
140 <table class="memname">
141 <tr>
142 <td class="memname">__kernel void remap_bilinear </td>
143 <td>(</td>
144 <td class="paramtype">__global uchar *&#160;</td>
145 <td class="paramname"><em>in_ptr</em>, </td>
146 </tr>
147 <tr>
148 <td class="paramkey"></td>
149 <td></td>
150 <td class="paramtype">uint&#160;</td>
151 <td class="paramname"><em>in_stride_x</em>, </td>
152 </tr>
153 <tr>
154 <td class="paramkey"></td>
155 <td></td>
156 <td class="paramtype">uint&#160;</td>
157 <td class="paramname"><em>in_step_x</em>, </td>
158 </tr>
159 <tr>
160 <td class="paramkey"></td>
161 <td></td>
162 <td class="paramtype">uint&#160;</td>
163 <td class="paramname"><em>in_stride_y</em>, </td>
164 </tr>
165 <tr>
166 <td class="paramkey"></td>
167 <td></td>
168 <td class="paramtype">uint&#160;</td>
169 <td class="paramname"><em>in_step_y</em>, </td>
170 </tr>
171 <tr>
172 <td class="paramkey"></td>
173 <td></td>
174 <td class="paramtype">uint&#160;</td>
175 <td class="paramname"><em>in_offset_first_element_in_bytes</em>, </td>
176 </tr>
177 <tr>
178 <td class="paramkey"></td>
179 <td></td>
180 <td class="paramtype">__global uchar *&#160;</td>
181 <td class="paramname"><em>out_ptr</em>, </td>
182 </tr>
183 <tr>
184 <td class="paramkey"></td>
185 <td></td>
186 <td class="paramtype">uint&#160;</td>
187 <td class="paramname"><em>out_stride_x</em>, </td>
188 </tr>
189 <tr>
190 <td class="paramkey"></td>
191 <td></td>
192 <td class="paramtype">uint&#160;</td>
193 <td class="paramname"><em>out_step_x</em>, </td>
194 </tr>
195 <tr>
196 <td class="paramkey"></td>
197 <td></td>
198 <td class="paramtype">uint&#160;</td>
199 <td class="paramname"><em>out_stride_y</em>, </td>
200 </tr>
201 <tr>
202 <td class="paramkey"></td>
203 <td></td>
204 <td class="paramtype">uint&#160;</td>
205 <td class="paramname"><em>out_step_y</em>, </td>
206 </tr>
207 <tr>
208 <td class="paramkey"></td>
209 <td></td>
210 <td class="paramtype">uint&#160;</td>
211 <td class="paramname"><em>out_offset_first_element_in_bytes</em>, </td>
212 </tr>
213 <tr>
214 <td class="paramkey"></td>
215 <td></td>
216 <td class="paramtype">__global uchar *&#160;</td>
217 <td class="paramname"><em>mapx_ptr</em>, </td>
218 </tr>
219 <tr>
220 <td class="paramkey"></td>
221 <td></td>
222 <td class="paramtype">uint&#160;</td>
223 <td class="paramname"><em>mapx_stride_x</em>, </td>
224 </tr>
225 <tr>
226 <td class="paramkey"></td>
227 <td></td>
228 <td class="paramtype">uint&#160;</td>
229 <td class="paramname"><em>mapx_step_x</em>, </td>
230 </tr>
231 <tr>
232 <td class="paramkey"></td>
233 <td></td>
234 <td class="paramtype">uint&#160;</td>
235 <td class="paramname"><em>mapx_stride_y</em>, </td>
236 </tr>
237 <tr>
238 <td class="paramkey"></td>
239 <td></td>
240 <td class="paramtype">uint&#160;</td>
241 <td class="paramname"><em>mapx_step_y</em>, </td>
242 </tr>
243 <tr>
244 <td class="paramkey"></td>
245 <td></td>
246 <td class="paramtype">uint&#160;</td>
247 <td class="paramname"><em>mapx_offset_first_element_in_bytes</em>, </td>
248 </tr>
249 <tr>
250 <td class="paramkey"></td>
251 <td></td>
252 <td class="paramtype">__global uchar *&#160;</td>
253 <td class="paramname"><em>mapy_ptr</em>, </td>
254 </tr>
255 <tr>
256 <td class="paramkey"></td>
257 <td></td>
258 <td class="paramtype">uint&#160;</td>
259 <td class="paramname"><em>mapy_stride_x</em>, </td>
260 </tr>
261 <tr>
262 <td class="paramkey"></td>
263 <td></td>
264 <td class="paramtype">uint&#160;</td>
265 <td class="paramname"><em>mapy_step_x</em>, </td>
266 </tr>
267 <tr>
268 <td class="paramkey"></td>
269 <td></td>
270 <td class="paramtype">uint&#160;</td>
271 <td class="paramname"><em>mapy_stride_y</em>, </td>
272 </tr>
273 <tr>
274 <td class="paramkey"></td>
275 <td></td>
276 <td class="paramtype">uint&#160;</td>
277 <td class="paramname"><em>mapy_step_y</em>, </td>
278 </tr>
279 <tr>
280 <td class="paramkey"></td>
281 <td></td>
282 <td class="paramtype">uint&#160;</td>
283 <td class="paramname"><em>mapy_offset_first_element_in_bytes</em>, </td>
284 </tr>
285 <tr>
286 <td class="paramkey"></td>
287 <td></td>
288 <td class="paramtype">const float&#160;</td>
289 <td class="paramname"><em>width</em>, </td>
290 </tr>
291 <tr>
292 <td class="paramkey"></td>
293 <td></td>
294 <td class="paramtype">const float&#160;</td>
295 <td class="paramname"><em>height</em>&#160;</td>
296 </tr>
297 <tr>
298 <td></td>
299 <td>)</td>
300 <td></td><td></td>
301 </tr>
302 </table>
303</div><div class="memdoc">
304
305<p>Performs a remapping of an input image to an output given two remapping image using bilinear as interpolation. </p>
306<p>This kernel performs remapping with this method of pixel coordinate translation: out(x,y) = in(mapx(x,y), mapy(x,y));</p>
307<dl class="params"><dt>Parameters</dt><dd>
308 <table class="params">
309 <tr><td class="paramdir">[in]</td><td class="paramname">in_ptr</td><td>Pointer to the source image. Supported data types: U8. </td></tr>
310 <tr><td class="paramdir">[in]</td><td class="paramname">in_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
311 <tr><td class="paramdir">[in]</td><td class="paramname">in_step_x</td><td>in_stride_x * number of elements along X processed per work item (in bytes) </td></tr>
312 <tr><td class="paramdir">[in]</td><td class="paramname">in_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
313 <tr><td class="paramdir">[in]</td><td class="paramname">in_step_y</td><td>in_stride_y * number of elements along Y processed per work item (in bytes) </td></tr>
314 <tr><td class="paramdir">[in]</td><td class="paramname">in_offset_first_element_in_bytes</td><td>Offset of the first element in the source image </td></tr>
315 <tr><td class="paramdir">[out]</td><td class="paramname">out_ptr</td><td>Pointer to the destination image. Supported data types: U8. </td></tr>
316 <tr><td class="paramdir">[in]</td><td class="paramname">out_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
317 <tr><td class="paramdir">[in]</td><td class="paramname">out_step_x</td><td>out_stride_x * number of elements along X processed per work item (in bytes) </td></tr>
318 <tr><td class="paramdir">[in]</td><td class="paramname">out_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
319 <tr><td class="paramdir">[in]</td><td class="paramname">out_step_y</td><td>out_stride_y * number of elements along Y processed per work item (in bytes) </td></tr>
320 <tr><td class="paramdir">[in]</td><td class="paramname">out_offset_first_element_in_bytes</td><td>Offset of the first element in the destination image </td></tr>
321 <tr><td class="paramdir">[in]</td><td class="paramname">mapx_ptr</td><td>Pointer to the x remapping image. Supported data types: F32. </td></tr>
322 <tr><td class="paramdir">[in]</td><td class="paramname">mapx_stride_x</td><td>Stride of the remapping image in X dimension (in bytes) </td></tr>
323 <tr><td class="paramdir">[in]</td><td class="paramname">mapx_step_x</td><td>mapx_stride_x * number of elements along X processed per work item (in bytes) </td></tr>
324 <tr><td class="paramdir">[in]</td><td class="paramname">mapx_stride_y</td><td>Stride of the remapping image in Y dimension (in bytes) </td></tr>
325 <tr><td class="paramdir">[in]</td><td class="paramname">mapx_step_y</td><td>mapy_stride_y * number of elements along Y processed per work item (in bytes) </td></tr>
326 <tr><td class="paramdir">[in]</td><td class="paramname">mapx_offset_first_element_in_bytes</td><td>Offset of the first element in the remapping image </td></tr>
327 <tr><td class="paramdir">[in]</td><td class="paramname">mapy_ptr</td><td>Pointer to the x remapping image. Supported data types: F32. </td></tr>
328 <tr><td class="paramdir">[in]</td><td class="paramname">mapy_stride_x</td><td>Stride of the remapping image in X dimension (in bytes) </td></tr>
329 <tr><td class="paramdir">[in]</td><td class="paramname">mapy_step_x</td><td>mapy_stride_x * number of elements along X processed per work item (in bytes) </td></tr>
330 <tr><td class="paramdir">[in]</td><td class="paramname">mapy_stride_y</td><td>Stride of the remapping image in Y dimension (in bytes) </td></tr>
331 <tr><td class="paramdir">[in]</td><td class="paramname">mapy_step_y</td><td>mapy_stride_y * number of elements along Y processed per work item (in bytes) </td></tr>
332 <tr><td class="paramdir">[in]</td><td class="paramname">mapy_offset_first_element_in_bytes</td><td>Offset of the first element in the remapping image </td></tr>
333 <tr><td class="paramdir">[in]</td><td class="paramname">width</td><td>Width of the input image </td></tr>
334 <tr><td class="paramdir">[in]</td><td class="paramname">height</td><td>Height of the input image </td></tr>
335 </table>
336 </dd>
337</dl>
338
339<p>Definition at line <a class="el" href="remap_8cl_source.xhtml#l00113">113</a> of file <a class="el" href="remap_8cl_source.xhtml">remap.cl</a>.</p>
340
Jenkins52ba29e2018-08-29 15:32:11 +0000[diff] [blame^]341<p>References <a class="el" href="warp__helpers_8h_source.xhtml#l00135">bilinear_interpolate()</a>, <a class="el" href="warp__helpers_8h_source.xhtml#l00048">clamp_to_border()</a>, <a class="el" href="helpers_8h_source.xhtml#l00112">CONVERT_TO_IMAGE_STRUCT</a>, <a class="el" href="helpers_8h_source.xhtml#l00115">CONVERT_TO_IMAGE_STRUCT_NO_STEP</a>, <a class="el" href="_c_l_2_winograd_8cpp_source.xhtml#l00241">arm_compute::test::validation::in</a>, <a class="el" href="_c_l_2_winograd_8cpp_source.xhtml#l00242">arm_compute::test::validation::out</a>, and <a class="el" href="helpers_8h_source.xhtml#l00152">Image::ptr</a>.</p>
342<div class="fragment"><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160;{</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#ad366eaa4cf2d106037d91c30795a5c76">in</a> = <a class="code" href="helpers_8h.xhtml#a4334a4a76f8e9628c0fb9e1acf616e2a">CONVERT_TO_IMAGE_STRUCT_NO_STEP</a>(in);</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#af8a8a0625e7981212a0af48deb9d2a09">out</a> = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(out);</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> mapx = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(mapx);</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> mapy = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(mapy);</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; float4 mapx_coords = vload4(0, (__global <span class="keywordtype">float</span> *)mapx.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; float4 mapy_coords = vload4(0, (__global <span class="keywordtype">float</span> *)mapy.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; float8 map_coords = (float8)(mapx_coords.s0, mapy_coords.s0, mapx_coords.s1, mapy_coords.s1,</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; mapx_coords.s2, mapy_coords.s2, mapx_coords.s3, mapy_coords.s3);</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160;</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; vstore4(<a class="code" href="warp__helpers_8h.xhtml#abea9f226daf3e0ad741d03cf7417d353">bilinear_interpolate</a>(&amp;in, <a class="code" href="warp__helpers_8h.xhtml#adbdf2ca9e8fe0b67f9359929ef743126">clamp_to_border</a>(map_coords, width, height), width, height), 0, out.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160;}</div><div class="ttc" id="warp__helpers_8h_xhtml_adbdf2ca9e8fe0b67f9359929ef743126"><div class="ttname"><a href="warp__helpers_8h.xhtml#adbdf2ca9e8fe0b67f9359929ef743126">clamp_to_border</a></div><div class="ttdeci">const float8 clamp_to_border(float8 coords, const float width, const float height)</div><div class="ttdoc">Clamps the given coordinates to the borders. </div><div class="ttdef"><b>Definition:</b> <a href="warp__helpers_8h_source.xhtml#l00048">warp_helpers.h:48</a></div></div>
343<div class="ttc" id="helpers_8h_xhtml_a4334a4a76f8e9628c0fb9e1acf616e2a"><div class="ttname"><a href="helpers_8h.xhtml#a4334a4a76f8e9628c0fb9e1acf616e2a">CONVERT_TO_IMAGE_STRUCT_NO_STEP</a></div><div class="ttdeci">#define CONVERT_TO_IMAGE_STRUCT_NO_STEP(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00115">helpers.h:115</a></div></div>
344<div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_ad366eaa4cf2d106037d91c30795a5c76"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#ad366eaa4cf2d106037d91c30795a5c76">arm_compute::test::validation::in</a></div><div class="ttdeci">CLTensor in</div><div class="ttdef"><b>Definition:</b> <a href="_c_l_2_winograd_8cpp_source.xhtml#l00241">Winograd.cpp:241</a></div></div>
345<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#l00112">helpers.h:112</a></div></div>
346<div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_af8a8a0625e7981212a0af48deb9d2a09"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#af8a8a0625e7981212a0af48deb9d2a09">arm_compute::test::validation::out</a></div><div class="ttdeci">CLTensor out</div><div class="ttdef"><b>Definition:</b> <a href="_c_l_2_winograd_8cpp_source.xhtml#l00242">Winograd.cpp:242</a></div></div>
347<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#l00150">helpers.h:150</a></div></div>
348<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#l00152">helpers.h:152</a></div></div>
Anthony Barbier8140e1e2017-12-14 23:48:46 +0000[diff] [blame]349<div class="ttc" id="warp__helpers_8h_xhtml_abea9f226daf3e0ad741d03cf7417d353"><div class="ttname"><a href="warp__helpers_8h.xhtml#abea9f226daf3e0ad741d03cf7417d353">bilinear_interpolate</a></div><div class="ttdeci">const DATA_TYPE4 bilinear_interpolate(const Image *in, const float8 coords, const float width, const float height)</div><div class="ttdoc">Computes the bilinear interpolation for each set of coordinates in the vector coords and returns the ...</div><div class="ttdef"><b>Definition:</b> <a href="warp__helpers_8h_source.xhtml#l00135">warp_helpers.h:135</a></div></div>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]350</div><!-- fragment -->
351</div>
352</div>
353<a class="anchor" id="a786803611cc128275d32d9584376713e"></a>
354<div class="memitem">
355<div class="memproto">
356 <table class="memname">
357 <tr>
358 <td class="memname">__kernel void remap_nearest_neighbour </td>
359 <td>(</td>
360 <td class="paramtype">__global uchar *&#160;</td>
361 <td class="paramname"><em>in_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>in_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>in_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>in_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>in_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>in_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>out_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>out_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>out_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>out_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>out_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>out_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>mapx_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>mapx_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>mapx_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>mapx_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>mapx_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>mapx_offset_first_element_in_bytes</em>, </td>
464 </tr>
465 <tr>
466 <td class="paramkey"></td>
467 <td></td>
468 <td class="paramtype">__global uchar *&#160;</td>
469 <td class="paramname"><em>mapy_ptr</em>, </td>
470 </tr>
471 <tr>
472 <td class="paramkey"></td>
473 <td></td>
474 <td class="paramtype">uint&#160;</td>
475 <td class="paramname"><em>mapy_stride_x</em>, </td>
476 </tr>
477 <tr>
478 <td class="paramkey"></td>
479 <td></td>
480 <td class="paramtype">uint&#160;</td>
481 <td class="paramname"><em>mapy_step_x</em>, </td>
482 </tr>
483 <tr>
484 <td class="paramkey"></td>
485 <td></td>
486 <td class="paramtype">uint&#160;</td>
487 <td class="paramname"><em>mapy_stride_y</em>, </td>
488 </tr>
489 <tr>
490 <td class="paramkey"></td>
491 <td></td>
492 <td class="paramtype">uint&#160;</td>
493 <td class="paramname"><em>mapy_step_y</em>, </td>
494 </tr>
495 <tr>
496 <td class="paramkey"></td>
497 <td></td>
498 <td class="paramtype">uint&#160;</td>
499 <td class="paramname"><em>mapy_offset_first_element_in_bytes</em>, </td>
500 </tr>
501 <tr>
502 <td class="paramkey"></td>
503 <td></td>
504 <td class="paramtype">const float&#160;</td>
505 <td class="paramname"><em>width</em>, </td>
506 </tr>
507 <tr>
508 <td class="paramkey"></td>
509 <td></td>
510 <td class="paramtype">const float&#160;</td>
511 <td class="paramname"><em>height</em>&#160;</td>
512 </tr>
513 <tr>
514 <td></td>
515 <td>)</td>
516 <td></td><td></td>
517 </tr>
518 </table>
519</div><div class="memdoc">
520
521<p>Performs a remapping of an input image to an output given two remapping image using nearest neighbor as interpolation. </p>
522<p>This kernel performs remapping with this method of pixel coordinate translation: out(x,y) = in(mapx(x,y), mapy(x,y));</p>
523<dl class="params"><dt>Parameters</dt><dd>
524 <table class="params">
525 <tr><td class="paramdir">[in]</td><td class="paramname">in_ptr</td><td>Pointer to the source image. Supported data types: U8. </td></tr>
526 <tr><td class="paramdir">[in]</td><td class="paramname">in_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
527 <tr><td class="paramdir">[in]</td><td class="paramname">in_step_x</td><td>in_stride_x * number of elements along X processed per work item (in bytes) </td></tr>
528 <tr><td class="paramdir">[in]</td><td class="paramname">in_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
529 <tr><td class="paramdir">[in]</td><td class="paramname">in_step_y</td><td>in_stride_y * number of elements along Y processed per work item (in bytes) </td></tr>
530 <tr><td class="paramdir">[in]</td><td class="paramname">in_offset_first_element_in_bytes</td><td>Offset of the first element in the source image </td></tr>
531 <tr><td class="paramdir">[out]</td><td class="paramname">out_ptr</td><td>Pointer to the destination image. Supported data types: U8. </td></tr>
532 <tr><td class="paramdir">[in]</td><td class="paramname">out_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
533 <tr><td class="paramdir">[in]</td><td class="paramname">out_step_x</td><td>out_stride_x * number of elements along X processed per work item (in bytes) </td></tr>
534 <tr><td class="paramdir">[in]</td><td class="paramname">out_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
535 <tr><td class="paramdir">[in]</td><td class="paramname">out_step_y</td><td>out_stride_y * number of elements along Y processed per work item (in bytes) </td></tr>
536 <tr><td class="paramdir">[in]</td><td class="paramname">out_offset_first_element_in_bytes</td><td>Offset of the first element in the destination image </td></tr>
537 <tr><td class="paramdir">[in]</td><td class="paramname">mapx_ptr</td><td>Pointer to the x remapping image. Supported data types: F32. </td></tr>
538 <tr><td class="paramdir">[in]</td><td class="paramname">mapx_stride_x</td><td>Stride of the remapping image in X dimension (in bytes) </td></tr>
539 <tr><td class="paramdir">[in]</td><td class="paramname">mapx_step_x</td><td>mapx_stride_x * number of elements along X processed per work item (in bytes) </td></tr>
540 <tr><td class="paramdir">[in]</td><td class="paramname">mapx_stride_y</td><td>Stride of the remapping image in Y dimension (in bytes) </td></tr>
541 <tr><td class="paramdir">[in]</td><td class="paramname">mapx_step_y</td><td>mapy_stride_y * number of elements along Y processed per work item (in bytes) </td></tr>
542 <tr><td class="paramdir">[in]</td><td class="paramname">mapx_offset_first_element_in_bytes</td><td>Offset of the first element in the remapping image </td></tr>
543 <tr><td class="paramdir">[in]</td><td class="paramname">mapy_ptr</td><td>Pointer to the x remapping image. Supported data types: F32. </td></tr>
544 <tr><td class="paramdir">[in]</td><td class="paramname">mapy_stride_x</td><td>Stride of the remapping image in X dimension (in bytes) </td></tr>
545 <tr><td class="paramdir">[in]</td><td class="paramname">mapy_step_x</td><td>mapy_stride_x * number of elements along X processed per work item (in bytes) </td></tr>
546 <tr><td class="paramdir">[in]</td><td class="paramname">mapy_stride_y</td><td>Stride of the remapping image in Y dimension (in bytes) </td></tr>
547 <tr><td class="paramdir">[in]</td><td class="paramname">mapy_step_y</td><td>mapy_stride_y * number of elements along Y processed per work item (in bytes) </td></tr>
548 <tr><td class="paramdir">[in]</td><td class="paramname">mapy_offset_first_element_in_bytes</td><td>Offset of the first element in the remapping image </td></tr>
549 <tr><td class="paramdir">[in]</td><td class="paramname">width</td><td>Width of the input image </td></tr>
550 <tr><td class="paramdir">[in]</td><td class="paramname">height</td><td>Height of the input image </td></tr>
551 </table>
552 </dd>
553</dl>
554
555<p>Definition at line <a class="el" href="remap_8cl_source.xhtml#l00059">59</a> of file <a class="el" href="remap_8cl_source.xhtml">remap.cl</a>.</p>
556
Jenkins52ba29e2018-08-29 15:32:11 +0000[diff] [blame^]557<p>References <a class="el" href="warp__helpers_8h_source.xhtml#l00048">clamp_to_border()</a>, <a class="el" href="helpers_8h_source.xhtml#l00112">CONVERT_TO_IMAGE_STRUCT</a>, <a class="el" href="helpers_8h_source.xhtml#l00115">CONVERT_TO_IMAGE_STRUCT_NO_STEP</a>, <a class="el" href="_c_l_2_winograd_8cpp_source.xhtml#l00241">arm_compute::test::validation::in</a>, <a class="el" href="_c_l_2_winograd_8cpp_source.xhtml#l00242">arm_compute::test::validation::out</a>, <a class="el" href="helpers_8h_source.xhtml#l00152">Image::ptr</a>, and <a class="el" href="warp__helpers_8h_source.xhtml#l00058">read_texels4()</a>.</p>
558<div class="fragment"><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; <a class="code" href="struct_image.xhtml">Image</a> <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#ad366eaa4cf2d106037d91c30795a5c76">in</a> = <a class="code" href="helpers_8h.xhtml#a4334a4a76f8e9628c0fb9e1acf616e2a">CONVERT_TO_IMAGE_STRUCT_NO_STEP</a>(in);</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#af8a8a0625e7981212a0af48deb9d2a09">out</a> = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(out);</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> mapx = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(mapx);</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> mapy = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(mapy);</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; float4 mapx_coords = vload4(0, (__global <span class="keywordtype">float</span> *)mapx.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; float4 mapy_coords = vload4(0, (__global <span class="keywordtype">float</span> *)mapy.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; float8 map_coords = (float8)(mapx_coords.s0, mapy_coords.s0, mapx_coords.s1, mapy_coords.s1,</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; mapx_coords.s2, mapy_coords.s2, mapx_coords.s3, mapy_coords.s3);</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; map_coords += (float8)(0.5f);</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; vstore4(<a class="code" href="warp__helpers_8h.xhtml#aba42442a4c991cdbb52727fa370676f1">read_texels4</a>(&amp;in, convert_int8(<a class="code" href="warp__helpers_8h.xhtml#adbdf2ca9e8fe0b67f9359929ef743126">clamp_to_border</a>(map_coords, width, height))), 0, out.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;}</div><div class="ttc" id="warp__helpers_8h_xhtml_adbdf2ca9e8fe0b67f9359929ef743126"><div class="ttname"><a href="warp__helpers_8h.xhtml#adbdf2ca9e8fe0b67f9359929ef743126">clamp_to_border</a></div><div class="ttdeci">const float8 clamp_to_border(float8 coords, const float width, const float height)</div><div class="ttdoc">Clamps the given coordinates to the borders. </div><div class="ttdef"><b>Definition:</b> <a href="warp__helpers_8h_source.xhtml#l00048">warp_helpers.h:48</a></div></div>
559<div class="ttc" id="helpers_8h_xhtml_a4334a4a76f8e9628c0fb9e1acf616e2a"><div class="ttname"><a href="helpers_8h.xhtml#a4334a4a76f8e9628c0fb9e1acf616e2a">CONVERT_TO_IMAGE_STRUCT_NO_STEP</a></div><div class="ttdeci">#define CONVERT_TO_IMAGE_STRUCT_NO_STEP(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00115">helpers.h:115</a></div></div>
560<div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_ad366eaa4cf2d106037d91c30795a5c76"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#ad366eaa4cf2d106037d91c30795a5c76">arm_compute::test::validation::in</a></div><div class="ttdeci">CLTensor in</div><div class="ttdef"><b>Definition:</b> <a href="_c_l_2_winograd_8cpp_source.xhtml#l00241">Winograd.cpp:241</a></div></div>
561<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#l00112">helpers.h:112</a></div></div>
562<div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_af8a8a0625e7981212a0af48deb9d2a09"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#af8a8a0625e7981212a0af48deb9d2a09">arm_compute::test::validation::out</a></div><div class="ttdeci">CLTensor out</div><div class="ttdef"><b>Definition:</b> <a href="_c_l_2_winograd_8cpp_source.xhtml#l00242">Winograd.cpp:242</a></div></div>
563<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#l00150">helpers.h:150</a></div></div>
564<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#l00152">helpers.h:152</a></div></div>
Anthony Barbier8140e1e2017-12-14 23:48:46 +0000[diff] [blame]565<div class="ttc" id="warp__helpers_8h_xhtml_aba42442a4c991cdbb52727fa370676f1"><div class="ttname"><a href="warp__helpers_8h.xhtml#aba42442a4c991cdbb52727fa370676f1">read_texels4</a></div><div class="ttdeci">const DATA_TYPE4 read_texels4(const Image *in, const int8 coords)</div><div class="ttdoc">Reads four texels from the input image. </div><div class="ttdef"><b>Definition:</b> <a href="warp__helpers_8h_source.xhtml#l00058">warp_helpers.h:58</a></div></div>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]566</div><!-- fragment -->
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Jenkins52ba29e2018-08-29 15:32:11 +0000[diff] [blame^]575 <li class="footer">Generated on Wed Aug 29 2018 15:31:38 for Compute Library by
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Anthony Barbier8140e1e2017-12-14 23:48:46 +0000[diff] [blame]577 <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.11 </li>
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