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Anthony Barbierdbdab852017-06-23 15:42:00 +01009<title>Compute Library: src/core/CL/cl_kernels/warp_affine.cl File Reference</title>
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Anthony Barbierdbdab852017-06-23 15:42:00 +010038 <div id="projectname">Compute Library
Jenkinsb9abeae2018-11-22 11:58:08 +000039 &#160;<span id="projectnumber">18.11</span>
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89<div class="header">
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91<a href="#func-members">Functions</a> </div>
92 <div class="headertitle">
93<div class="title">warp_affine.cl File Reference</div> </div>
94</div><!--header-->
95<div class="contents">
Jenkinsb9abeae2018-11-22 11:58:08 +000096<div class="textblock"><code>#include &quot;<a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml">helpers.h</a>&quot;</code><br />
Anthony Barbier8140e1e2017-12-14 23:48:46 +000097<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 +000098</div>
99<p><a href="warp__affine_8cl_source.xhtml">Go to the source code of this file.</a></p>
100<table class="memberdecls">
101<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
102Functions</h2></td></tr>
103<tr class="memitem:aecca3f284d1acabfa6d1bd8905dc036e"><td class="memItemLeft" align="right" valign="top">const float8&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="warp__affine_8cl.xhtml#aecca3f284d1acabfa6d1bd8905dc036e">build_affine_mtx</a> ()</td></tr>
Anthony Barbier8140e1e2017-12-14 23:48:46 +0000104<tr class="memdesc:aecca3f284d1acabfa6d1bd8905dc036e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns a vector of floats contaning the matrix coefficients. <a href="#aecca3f284d1acabfa6d1bd8905dc036e">More...</a><br /></td></tr>
Anthony Barbier871448e2017-03-24 14:54:29 +0000105<tr class="separator:aecca3f284d1acabfa6d1bd8905dc036e"><td class="memSeparator" colspan="2">&#160;</td></tr>
106<tr class="memitem:a78e971ccef9598f9545f344d3a90a312"><td class="memItemLeft" align="right" valign="top">const float8&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="warp__affine_8cl.xhtml#a78e971ccef9598f9545f344d3a90a312">apply_affine_transform</a> (const float2 coord, const float8 mtx)</td></tr>
Anthony Barbier8140e1e2017-12-14 23:48:46 +0000107<tr class="memdesc:a78e971ccef9598f9545f344d3a90a312"><td class="mdescLeft">&#160;</td><td class="mdescRight">Transforms 4 2D coordinates using the formula: <a href="#a78e971ccef9598f9545f344d3a90a312">More...</a><br /></td></tr>
Anthony Barbier871448e2017-03-24 14:54:29 +0000108<tr class="separator:a78e971ccef9598f9545f344d3a90a312"><td class="memSeparator" colspan="2">&#160;</td></tr>
Jenkins52ba29e2018-08-29 15:32:11 +0000109<tr class="memitem:a716ebd98bb81a3addb7f4d769e118dd9"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="warp__affine_8cl.xhtml#a716ebd98bb81a3addb7f4d769e118dd9">warp_affine_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, const int width, const int height)</td></tr>
Anthony Barbier8140e1e2017-12-14 23:48:46 +0000110<tr class="memdesc:a716ebd98bb81a3addb7f4d769e118dd9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Performs an affine transform on an image interpolating with the NEAREAST NEIGHBOUR method. <a href="#a716ebd98bb81a3addb7f4d769e118dd9">More...</a><br /></td></tr>
Anthony Barbier871448e2017-03-24 14:54:29 +0000111<tr class="separator:a716ebd98bb81a3addb7f4d769e118dd9"><td class="memSeparator" colspan="2">&#160;</td></tr>
Jenkins52ba29e2018-08-29 15:32:11 +0000112<tr class="memitem:a4a77d9bbbc01353083729a076cedc38c"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="warp__affine_8cl.xhtml#a4a77d9bbbc01353083729a076cedc38c">warp_affine_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, const int width, const int height)</td></tr>
Anthony Barbier8140e1e2017-12-14 23:48:46 +0000113<tr class="memdesc:a4a77d9bbbc01353083729a076cedc38c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Performs an affine transform on an image interpolating with the BILINEAR method. <a href="#a4a77d9bbbc01353083729a076cedc38c">More...</a><br /></td></tr>
Anthony Barbier871448e2017-03-24 14:54:29 +0000114<tr class="separator:a4a77d9bbbc01353083729a076cedc38c"><td class="memSeparator" colspan="2">&#160;</td></tr>
115</table>
116<h2 class="groupheader">Function Documentation</h2>
Jenkinsb9abeae2018-11-22 11:58:08 +0000117<a id="a78e971ccef9598f9545f344d3a90a312"></a>
118<h2 class="memtitle"><span class="permalink"><a href="#a78e971ccef9598f9545f344d3a90a312">&#9670;&nbsp;</a></span>apply_affine_transform()</h2>
119
Anthony Barbier871448e2017-03-24 14:54:29 +0000120<div class="memitem">
121<div class="memproto">
122<table class="mlabels">
123 <tr>
124 <td class="mlabels-left">
125 <table class="memname">
126 <tr>
127 <td class="memname">const float8 apply_affine_transform </td>
128 <td>(</td>
129 <td class="paramtype">const float2&#160;</td>
130 <td class="paramname"><em>coord</em>, </td>
131 </tr>
132 <tr>
133 <td class="paramkey"></td>
134 <td></td>
135 <td class="paramtype">const float8&#160;</td>
136 <td class="paramname"><em>mtx</em>&#160;</td>
137 </tr>
138 <tr>
139 <td></td>
140 <td>)</td>
141 <td></td><td></td>
142 </tr>
143 </table>
144 </td>
145 <td class="mlabels-right">
146<span class="mlabels"><span class="mlabel">inline</span></span> </td>
147 </tr>
148</table>
149</div><div class="memdoc">
150
151<p>Transforms 4 2D coordinates using the formula: </p>
152<p>x0 = M[1][1] * x + M[1][2] * y + M[1][3] y0 = M[2][1] * x + M[2][2] * y + M[2][3]</p>
153<dl class="params"><dt>Parameters</dt><dd>
154 <table class="params">
155 <tr><td class="paramdir">[in]</td><td class="paramname">coord</td><td>2D coordinate to transform. </td></tr>
156 <tr><td class="paramdir">[in]</td><td class="paramname">mtx</td><td>affine matrix</td></tr>
157 </table>
158 </dd>
159</dl>
160<dl class="section return"><dt>Returns</dt><dd>a int8 containing 4 2D transformed values. </dd></dl>
161
Jenkinsb9abeae2018-11-22 11:58:08 +0000162<p class="definition">Definition at line <a class="el" href="warp__affine_8cl_source.xhtml#l00043">43</a> of file <a class="el" href="warp__affine_8cl_source.xhtml">warp_affine.cl</a>.</p>
Anthony Barbier871448e2017-03-24 14:54:29 +0000163
Jenkinsb9abeae2018-11-22 11:58:08 +0000164<p class="reference">Referenced by <a class="el" href="warp__affine_8cl_source.xhtml#l00111">warp_affine_bilinear()</a>, and <a class="el" href="warp__affine_8cl_source.xhtml#l00079">warp_affine_nearest_neighbour()</a>.</p>
Anthony Barbier8140e1e2017-12-14 23:48:46 +0000165<div class="fragment"><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;{</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <span class="keyword">const</span> float4 in_x_coords = (float4)(coord.s0, 1 + coord.s0, 2 + coord.s0, 3 + coord.s0);</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; <span class="comment">// transform [x,x+1,x+2,x+3]</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <span class="keyword">const</span> float4 new_x = mad(<span class="comment">/*A*/</span> in_x_coords, (float4)(mtx.s0) <span class="comment">/*B*/</span>, mad((float4)(coord.s1), (float4)(mtx.s2), (float4)(mtx.s4)));</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <span class="comment">// transform [y,y+1,y+2,y+3]</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <span class="keyword">const</span> float4 new_y = mad(in_x_coords, (float4)(mtx.s1), mad((float4)(coord.s1), (float4)(mtx.s3), (float4)(mtx.s5)));</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="keywordflow">return</span> (float8)(new_x.s0, new_y.s0, new_x.s1, new_y.s1, new_x.s2, new_y.s2, new_x.s3, new_y.s3);</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;}</div></div><!-- fragment -->
Anthony Barbier871448e2017-03-24 14:54:29 +0000166</div>
167</div>
Jenkinsb9abeae2018-11-22 11:58:08 +0000168<a id="aecca3f284d1acabfa6d1bd8905dc036e"></a>
169<h2 class="memtitle"><span class="permalink"><a href="#aecca3f284d1acabfa6d1bd8905dc036e">&#9670;&nbsp;</a></span>build_affine_mtx()</h2>
170
Anthony Barbier871448e2017-03-24 14:54:29 +0000171<div class="memitem">
172<div class="memproto">
173<table class="mlabels">
174 <tr>
175 <td class="mlabels-left">
176 <table class="memname">
177 <tr>
178 <td class="memname">const float8 build_affine_mtx </td>
179 <td>(</td>
180 <td class="paramname"></td><td>)</td>
181 <td></td>
182 </tr>
183 </table>
184 </td>
185 <td class="mlabels-right">
186<span class="mlabels"><span class="mlabel">inline</span></span> </td>
187 </tr>
188</table>
189</div><div class="memdoc">
190
191<p>Returns a vector of floats contaning the matrix coefficients. </p>
192
Jenkinsb9abeae2018-11-22 11:58:08 +0000193<p class="definition">Definition at line <a class="el" href="warp__affine_8cl_source.xhtml#l00028">28</a> of file <a class="el" href="warp__affine_8cl_source.xhtml">warp_affine.cl</a>.</p>
Anthony Barbier871448e2017-03-24 14:54:29 +0000194
Jenkinsb9abeae2018-11-22 11:58:08 +0000195<p class="reference">Referenced by <a class="el" href="warp__affine_8cl_source.xhtml#l00111">warp_affine_bilinear()</a>, and <a class="el" href="warp__affine_8cl_source.xhtml#l00079">warp_affine_nearest_neighbour()</a>.</p>
Anthony Barbier8140e1e2017-12-14 23:48:46 +0000196<div class="fragment"><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;{</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; <span class="keywordflow">return</span> (float8)(MAT0, MAT1, MAT2, MAT3, MAT4, MAT5, 0, 0);</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;}</div></div><!-- fragment -->
Anthony Barbier871448e2017-03-24 14:54:29 +0000197</div>
198</div>
Jenkinsb9abeae2018-11-22 11:58:08 +0000199<a id="a4a77d9bbbc01353083729a076cedc38c"></a>
200<h2 class="memtitle"><span class="permalink"><a href="#a4a77d9bbbc01353083729a076cedc38c">&#9670;&nbsp;</a></span>warp_affine_bilinear()</h2>
201
Anthony Barbier871448e2017-03-24 14:54:29 +0000202<div class="memitem">
203<div class="memproto">
204 <table class="memname">
205 <tr>
206 <td class="memname">__kernel void warp_affine_bilinear </td>
207 <td>(</td>
208 <td class="paramtype">__global uchar *&#160;</td>
209 <td class="paramname"><em>in_ptr</em>, </td>
210 </tr>
211 <tr>
212 <td class="paramkey"></td>
213 <td></td>
214 <td class="paramtype">uint&#160;</td>
215 <td class="paramname"><em>in_stride_x</em>, </td>
216 </tr>
217 <tr>
218 <td class="paramkey"></td>
219 <td></td>
220 <td class="paramtype">uint&#160;</td>
221 <td class="paramname"><em>in_step_x</em>, </td>
222 </tr>
223 <tr>
224 <td class="paramkey"></td>
225 <td></td>
226 <td class="paramtype">uint&#160;</td>
227 <td class="paramname"><em>in_stride_y</em>, </td>
228 </tr>
229 <tr>
230 <td class="paramkey"></td>
231 <td></td>
232 <td class="paramtype">uint&#160;</td>
233 <td class="paramname"><em>in_step_y</em>, </td>
234 </tr>
235 <tr>
236 <td class="paramkey"></td>
237 <td></td>
238 <td class="paramtype">uint&#160;</td>
239 <td class="paramname"><em>in_offset_first_element_in_bytes</em>, </td>
240 </tr>
241 <tr>
242 <td class="paramkey"></td>
243 <td></td>
244 <td class="paramtype">__global uchar *&#160;</td>
245 <td class="paramname"><em>out_ptr</em>, </td>
246 </tr>
247 <tr>
248 <td class="paramkey"></td>
249 <td></td>
250 <td class="paramtype">uint&#160;</td>
251 <td class="paramname"><em>out_stride_x</em>, </td>
252 </tr>
253 <tr>
254 <td class="paramkey"></td>
255 <td></td>
256 <td class="paramtype">uint&#160;</td>
257 <td class="paramname"><em>out_step_x</em>, </td>
258 </tr>
259 <tr>
260 <td class="paramkey"></td>
261 <td></td>
262 <td class="paramtype">uint&#160;</td>
263 <td class="paramname"><em>out_stride_y</em>, </td>
264 </tr>
265 <tr>
266 <td class="paramkey"></td>
267 <td></td>
268 <td class="paramtype">uint&#160;</td>
269 <td class="paramname"><em>out_step_y</em>, </td>
270 </tr>
271 <tr>
272 <td class="paramkey"></td>
273 <td></td>
274 <td class="paramtype">uint&#160;</td>
275 <td class="paramname"><em>out_offset_first_element_in_bytes</em>, </td>
276 </tr>
277 <tr>
278 <td class="paramkey"></td>
279 <td></td>
280 <td class="paramtype">const int&#160;</td>
281 <td class="paramname"><em>width</em>, </td>
282 </tr>
283 <tr>
284 <td class="paramkey"></td>
285 <td></td>
286 <td class="paramtype">const int&#160;</td>
287 <td class="paramname"><em>height</em>&#160;</td>
288 </tr>
289 <tr>
290 <td></td>
291 <td>)</td>
292 <td></td><td></td>
293 </tr>
294 </table>
295</div><div class="memdoc">
296
297<p>Performs an affine transform on an image interpolating with the BILINEAR method. </p>
298<p>Input and output are single channel U8.</p>
Anthony Barbier8140e1e2017-12-14 23:48:46 +0000299<dl class="section attention"><dt>Attention</dt><dd>The matrix coefficients need to be passed at compile time:<br />
300const char build_options [] = "-DMAT0=1 -DMAT1=2 -DMAT2=1 -DMAT3=2 -DMAT4=4 -DMAT5=2 "<br />
Anthony Barbier871448e2017-03-24 14:54:29 +0000301clBuildProgram( program, 0, NULL, build_options, NULL, NULL);</dd></dl>
302<dl class="params"><dt>Parameters</dt><dd>
303 <table class="params">
304 <tr><td class="paramdir">[in]</td><td class="paramname">in_ptr</td><td>Pointer to the source image. Supported data types: U8. </td></tr>
305 <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>
306 <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>
307 <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>
308 <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>
309 <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>
310 <tr><td class="paramdir">[out]</td><td class="paramname">out_ptr</td><td>Pointer to the destination image. Supported data types: U8. </td></tr>
311 <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>
312 <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>
313 <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>
314 <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>
315 <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>
316 <tr><td class="paramdir">[in]</td><td class="paramname">width</td><td>Width of the destination image </td></tr>
317 <tr><td class="paramdir">[in]</td><td class="paramname">height</td><td>Height of the destination image </td></tr>
318 </table>
319 </dd>
320</dl>
321
Jenkinsb9abeae2018-11-22 11:58:08 +0000322<p class="definition">Definition at line <a class="el" href="warp__affine_8cl_source.xhtml#l00111">111</a> of file <a class="el" href="warp__affine_8cl_source.xhtml">warp_affine.cl</a>.</p>
Anthony Barbier871448e2017-03-24 14:54:29 +0000323
Jenkinsb9abeae2018-11-22 11:58:08 +0000324<p class="reference">References <a class="el" href="warp__affine_8cl_source.xhtml#l00043">apply_affine_transform()</a>, <a class="el" href="warp__helpers_8h_source.xhtml#l00137">bilinear_interpolate()</a>, <a class="el" href="warp__affine_8cl_source.xhtml#l00028">build_affine_mtx()</a>, <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00110">CONVERT_TO_IMAGE_STRUCT</a>, <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00113">CONVERT_TO_IMAGE_STRUCT_NO_STEP</a>, <a class="el" href="warp__helpers_8h_source.xhtml#l00068">get_current_coords()</a>, <a class="el" href="_c_l_2_winograd_8cpp_source.xhtml#l00265">arm_compute::test::validation::in</a>, <a class="el" href="_c_l_2_winograd_8cpp_source.xhtml#l00266">arm_compute::test::validation::out</a>, and <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00150">Image::ptr</a>.</p>
325<div class="fragment"><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160;{</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</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="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a4334a4a76f8e9628c0fb9e1acf616e2a">CONVERT_TO_IMAGE_STRUCT_NO_STEP</a>(in);</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</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="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(out);</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; vstore4(<a class="code" href="warp__helpers_8h.xhtml#abea9f226daf3e0ad741d03cf7417d353">bilinear_interpolate</a>(&amp;in, <a class="code" href="warp__affine_8cl.xhtml#a78e971ccef9598f9545f344d3a90a312">apply_affine_transform</a>(<a class="code" href="warp__helpers_8h.xhtml#a4caaeeb51ea58015267a9974675226d1">get_current_coords</a>(), <a class="code" href="warp__affine_8cl.xhtml#aecca3f284d1acabfa6d1bd8905dc036e">build_affine_mtx</a>()), width, height), 0, out.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160;}</div><div class="ttc" id="src_2core_2_c_l_2cl__kernels_2_helpers_8h_xhtml_aebe814363556c244be043b13e7969197"><div class="ttname"><a href="src_2core_2_c_l_2cl__kernels_2_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="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00110">helpers.h:110</a></div></div>
326<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#l00265">Winograd.cpp:265</a></div></div>
Anthony Barbier871448e2017-03-24 14:54:29 +0000327<div class="ttc" id="warp__affine_8cl_xhtml_aecca3f284d1acabfa6d1bd8905dc036e"><div class="ttname"><a href="warp__affine_8cl.xhtml#aecca3f284d1acabfa6d1bd8905dc036e">build_affine_mtx</a></div><div class="ttdeci">const float8 build_affine_mtx()</div><div class="ttdoc">Returns a vector of floats contaning the matrix coefficients. </div><div class="ttdef"><b>Definition:</b> <a href="warp__affine_8cl_source.xhtml#l00028">warp_affine.cl:28</a></div></div>
Jenkinsb9abeae2018-11-22 11:58:08 +0000328<div class="ttc" id="src_2core_2_c_l_2cl__kernels_2_helpers_8h_xhtml_a4334a4a76f8e9628c0fb9e1acf616e2a"><div class="ttname"><a href="src_2core_2_c_l_2cl__kernels_2_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="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00113">helpers.h:113</a></div></div>
329<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#l00266">Winograd.cpp:266</a></div></div>
330<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="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00148">helpers.h:148</a></div></div>
331<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="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00150">helpers.h:150</a></div></div>
332<div class="ttc" id="warp__helpers_8h_xhtml_a4caaeeb51ea58015267a9974675226d1"><div class="ttname"><a href="warp__helpers_8h.xhtml#a4caaeeb51ea58015267a9974675226d1">get_current_coords</a></div><div class="ttdeci">const float2 get_current_coords()</div><div class="ttdoc">Returns the current thread coordinates. </div><div class="ttdef"><b>Definition:</b> <a href="warp__helpers_8h_source.xhtml#l00068">warp_helpers.h:68</a></div></div>
Anthony Barbier871448e2017-03-24 14:54:29 +0000333<div class="ttc" id="warp__affine_8cl_xhtml_a78e971ccef9598f9545f344d3a90a312"><div class="ttname"><a href="warp__affine_8cl.xhtml#a78e971ccef9598f9545f344d3a90a312">apply_affine_transform</a></div><div class="ttdeci">const float8 apply_affine_transform(const float2 coord, const float8 mtx)</div><div class="ttdoc">Transforms 4 2D coordinates using the formula: </div><div class="ttdef"><b>Definition:</b> <a href="warp__affine_8cl_source.xhtml#l00043">warp_affine.cl:43</a></div></div>
Jenkinsb9abeae2018-11-22 11:58:08 +0000334<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#l00137">warp_helpers.h:137</a></div></div>
Anthony Barbier871448e2017-03-24 14:54:29 +0000335</div><!-- fragment -->
336</div>
337</div>
Jenkinsb9abeae2018-11-22 11:58:08 +0000338<a id="a716ebd98bb81a3addb7f4d769e118dd9"></a>
339<h2 class="memtitle"><span class="permalink"><a href="#a716ebd98bb81a3addb7f4d769e118dd9">&#9670;&nbsp;</a></span>warp_affine_nearest_neighbour()</h2>
340
Anthony Barbier871448e2017-03-24 14:54:29 +0000341<div class="memitem">
342<div class="memproto">
343 <table class="memname">
344 <tr>
345 <td class="memname">__kernel void warp_affine_nearest_neighbour </td>
346 <td>(</td>
347 <td class="paramtype">__global uchar *&#160;</td>
348 <td class="paramname"><em>in_ptr</em>, </td>
349 </tr>
350 <tr>
351 <td class="paramkey"></td>
352 <td></td>
353 <td class="paramtype">uint&#160;</td>
354 <td class="paramname"><em>in_stride_x</em>, </td>
355 </tr>
356 <tr>
357 <td class="paramkey"></td>
358 <td></td>
359 <td class="paramtype">uint&#160;</td>
360 <td class="paramname"><em>in_step_x</em>, </td>
361 </tr>
362 <tr>
363 <td class="paramkey"></td>
364 <td></td>
365 <td class="paramtype">uint&#160;</td>
366 <td class="paramname"><em>in_stride_y</em>, </td>
367 </tr>
368 <tr>
369 <td class="paramkey"></td>
370 <td></td>
371 <td class="paramtype">uint&#160;</td>
372 <td class="paramname"><em>in_step_y</em>, </td>
373 </tr>
374 <tr>
375 <td class="paramkey"></td>
376 <td></td>
377 <td class="paramtype">uint&#160;</td>
378 <td class="paramname"><em>in_offset_first_element_in_bytes</em>, </td>
379 </tr>
380 <tr>
381 <td class="paramkey"></td>
382 <td></td>
383 <td class="paramtype">__global uchar *&#160;</td>
384 <td class="paramname"><em>out_ptr</em>, </td>
385 </tr>
386 <tr>
387 <td class="paramkey"></td>
388 <td></td>
389 <td class="paramtype">uint&#160;</td>
390 <td class="paramname"><em>out_stride_x</em>, </td>
391 </tr>
392 <tr>
393 <td class="paramkey"></td>
394 <td></td>
395 <td class="paramtype">uint&#160;</td>
396 <td class="paramname"><em>out_step_x</em>, </td>
397 </tr>
398 <tr>
399 <td class="paramkey"></td>
400 <td></td>
401 <td class="paramtype">uint&#160;</td>
402 <td class="paramname"><em>out_stride_y</em>, </td>
403 </tr>
404 <tr>
405 <td class="paramkey"></td>
406 <td></td>
407 <td class="paramtype">uint&#160;</td>
408 <td class="paramname"><em>out_step_y</em>, </td>
409 </tr>
410 <tr>
411 <td class="paramkey"></td>
412 <td></td>
413 <td class="paramtype">uint&#160;</td>
414 <td class="paramname"><em>out_offset_first_element_in_bytes</em>, </td>
415 </tr>
416 <tr>
417 <td class="paramkey"></td>
418 <td></td>
419 <td class="paramtype">const int&#160;</td>
420 <td class="paramname"><em>width</em>, </td>
421 </tr>
422 <tr>
423 <td class="paramkey"></td>
424 <td></td>
425 <td class="paramtype">const int&#160;</td>
426 <td class="paramname"><em>height</em>&#160;</td>
427 </tr>
428 <tr>
429 <td></td>
430 <td>)</td>
431 <td></td><td></td>
432 </tr>
433 </table>
434</div><div class="memdoc">
435
436<p>Performs an affine transform on an image interpolating with the NEAREAST NEIGHBOUR method. </p>
437<p>Input and output are single channel U8.</p>
438<p>This kernel performs an affine transform with a 2x3 Matrix M with this method of pixel coordinate translation: x0 = M[1][1] * x + M[1][2] * y + M[1][3] y0 = M[2][1] * x + M[2][2] * y + M[2][3] output(x,y) = input(x0,y0)</p>
Anthony Barbier8140e1e2017-12-14 23:48:46 +0000439<dl class="section attention"><dt>Attention</dt><dd>The matrix coefficients need to be passed at compile time:<br />
440const char build_options [] = "-DMAT0=1 -DMAT1=2 -DMAT2=1 -DMAT3=2 -DMAT4=4 -DMAT5=2 "<br />
Anthony Barbier871448e2017-03-24 14:54:29 +0000441clBuildProgram( program, 0, NULL, build_options, NULL, NULL);</dd></dl>
442<dl class="params"><dt>Parameters</dt><dd>
443 <table class="params">
444 <tr><td class="paramdir">[in]</td><td class="paramname">in_ptr</td><td>Pointer to the source image. Supported data types: U8. </td></tr>
445 <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>
446 <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>
447 <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>
448 <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>
449 <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>
450 <tr><td class="paramdir">[out]</td><td class="paramname">out_ptr</td><td>Pointer to the destination image. Supported data types: U8. </td></tr>
451 <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>
452 <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>
453 <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>
454 <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>
455 <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>
456 <tr><td class="paramdir">[in]</td><td class="paramname">width</td><td>Width of the destination image </td></tr>
457 <tr><td class="paramdir">[in]</td><td class="paramname">height</td><td>Height of the destination image </td></tr>
458 </table>
459 </dd>
460</dl>
461
Jenkinsb9abeae2018-11-22 11:58:08 +0000462<p class="definition">Definition at line <a class="el" href="warp__affine_8cl_source.xhtml#l00079">79</a> of file <a class="el" href="warp__affine_8cl_source.xhtml">warp_affine.cl</a>.</p>
Anthony Barbier871448e2017-03-24 14:54:29 +0000463
Jenkinsb9abeae2018-11-22 11:58:08 +0000464<p class="reference">References <a class="el" href="warp__affine_8cl_source.xhtml#l00043">apply_affine_transform()</a>, <a class="el" href="warp__affine_8cl_source.xhtml#l00028">build_affine_mtx()</a>, <a class="el" href="warp__helpers_8h_source.xhtml#l00049">clamp_to_border()</a>, <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00110">CONVERT_TO_IMAGE_STRUCT</a>, <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00113">CONVERT_TO_IMAGE_STRUCT_NO_STEP</a>, <a class="el" href="warp__helpers_8h_source.xhtml#l00068">get_current_coords()</a>, <a class="el" href="_c_l_2_winograd_8cpp_source.xhtml#l00265">arm_compute::test::validation::in</a>, <a class="el" href="_c_l_2_winograd_8cpp_source.xhtml#l00266">arm_compute::test::validation::out</a>, <a class="el" href="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00150">Image::ptr</a>, and <a class="el" href="warp__helpers_8h_source.xhtml#l00059">read_texels4()</a>.</p>
465<div class="fragment"><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160;{</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</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="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#a4334a4a76f8e9628c0fb9e1acf616e2a">CONVERT_TO_IMAGE_STRUCT_NO_STEP</a>(in);</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</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="src_2core_2_c_l_2cl__kernels_2_helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(out);</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; vstore4(<a class="code" href="warp__helpers_8h.xhtml#aba42442a4c991cdbb52727fa370676f1">read_texels4</a>(&amp;in, convert_int8_rtn(<a class="code" href="warp__helpers_8h.xhtml#adbdf2ca9e8fe0b67f9359929ef743126">clamp_to_border</a>(<a class="code" href="warp__affine_8cl.xhtml#a78e971ccef9598f9545f344d3a90a312">apply_affine_transform</a>(<a class="code" href="warp__helpers_8h.xhtml#a4caaeeb51ea58015267a9974675226d1">get_current_coords</a>(), <a class="code" href="warp__affine_8cl.xhtml#aecca3f284d1acabfa6d1bd8905dc036e">build_affine_mtx</a>()), width, height))), 0, out.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;}</div><div class="ttc" id="src_2core_2_c_l_2cl__kernels_2_helpers_8h_xhtml_aebe814363556c244be043b13e7969197"><div class="ttname"><a href="src_2core_2_c_l_2cl__kernels_2_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="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00110">helpers.h:110</a></div></div>
466<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#l00049">warp_helpers.h:49</a></div></div>
467<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#l00265">Winograd.cpp:265</a></div></div>
Anthony Barbier871448e2017-03-24 14:54:29 +0000468<div class="ttc" id="warp__affine_8cl_xhtml_aecca3f284d1acabfa6d1bd8905dc036e"><div class="ttname"><a href="warp__affine_8cl.xhtml#aecca3f284d1acabfa6d1bd8905dc036e">build_affine_mtx</a></div><div class="ttdeci">const float8 build_affine_mtx()</div><div class="ttdoc">Returns a vector of floats contaning the matrix coefficients. </div><div class="ttdef"><b>Definition:</b> <a href="warp__affine_8cl_source.xhtml#l00028">warp_affine.cl:28</a></div></div>
Jenkinsb9abeae2018-11-22 11:58:08 +0000469<div class="ttc" id="src_2core_2_c_l_2cl__kernels_2_helpers_8h_xhtml_a4334a4a76f8e9628c0fb9e1acf616e2a"><div class="ttname"><a href="src_2core_2_c_l_2cl__kernels_2_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="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00113">helpers.h:113</a></div></div>
470<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#l00266">Winograd.cpp:266</a></div></div>
471<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="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00148">helpers.h:148</a></div></div>
472<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="src_2core_2_c_l_2cl__kernels_2_helpers_8h_source.xhtml#l00150">helpers.h:150</a></div></div>
473<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#l00059">warp_helpers.h:59</a></div></div>
474<div class="ttc" id="warp__helpers_8h_xhtml_a4caaeeb51ea58015267a9974675226d1"><div class="ttname"><a href="warp__helpers_8h.xhtml#a4caaeeb51ea58015267a9974675226d1">get_current_coords</a></div><div class="ttdeci">const float2 get_current_coords()</div><div class="ttdoc">Returns the current thread coordinates. </div><div class="ttdef"><b>Definition:</b> <a href="warp__helpers_8h_source.xhtml#l00068">warp_helpers.h:68</a></div></div>
Anthony Barbier871448e2017-03-24 14:54:29 +0000475<div class="ttc" id="warp__affine_8cl_xhtml_a78e971ccef9598f9545f344d3a90a312"><div class="ttname"><a href="warp__affine_8cl.xhtml#a78e971ccef9598f9545f344d3a90a312">apply_affine_transform</a></div><div class="ttdeci">const float8 apply_affine_transform(const float2 coord, const float8 mtx)</div><div class="ttdoc">Transforms 4 2D coordinates using the formula: </div><div class="ttdef"><b>Definition:</b> <a href="warp__affine_8cl_source.xhtml#l00043">warp_affine.cl:43</a></div></div>
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Anthony Barbier8140e1e2017-12-14 23:48:46 +0000484 <li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.xhtml">src</a></li><li class="navelem"><a class="el" href="dir_aebb8dcc11953d78e620bbef0b9e2183.xhtml">core</a></li><li class="navelem"><a class="el" href="dir_8c278f79c760e5c5fbd911f9870614c1.xhtml">CL</a></li><li class="navelem"><a class="el" href="dir_25885286e9dad4fa105b7b25a8031bbf.xhtml">cl_kernels</a></li><li class="navelem"><a class="el" href="warp__affine_8cl.xhtml">warp_affine.cl</a></li>
Jenkinsb9abeae2018-11-22 11:58:08 +0000485 <li class="footer">Generated on Thu Nov 22 2018 11:57:43 for Compute Library by
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Jenkinsb9abeae2018-11-22 11:58:08 +0000487 <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.13 </li>
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