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 114
 115 <div class="header">
 116   <div class="summary">
 117 <a href="#func-members">Functions</a>  </div>
 118   <div class="headertitle">
 119 <div class="title">warp_helpers.h 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="warp__helpers_8h_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="func-members"></a>
 127 Functions</h2></td></tr>
 128 <tr class="memitem:aaef9851523cbc6f833700f0eb572002b"><td class="memItemLeft" align="right" valign="top">const float8&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="warp__helpers_8h.xhtml#aaef9851523cbc6f833700f0eb572002b">clamp_to_border_with_size</a> (float8 coords, const float width, const float height, const float border_size)</td></tr>
 129 <tr class="memdesc:aaef9851523cbc6f833700f0eb572002b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Clamps the given coordinates to the borders according to the border size.  <a href="#aaef9851523cbc6f833700f0eb572002b">More...</a><br /></td></tr>
 130 <tr class="separator:aaef9851523cbc6f833700f0eb572002b"><td class="memSeparator" colspan="2">&#160;</td></tr>
 131 <tr class="memitem:adbdf2ca9e8fe0b67f9359929ef743126"><td class="memItemLeft" align="right" valign="top">const float8&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="warp__helpers_8h.xhtml#adbdf2ca9e8fe0b67f9359929ef743126">clamp_to_border</a> (float8 coords, const float width, const float height)</td></tr>
 132 <tr class="memdesc:adbdf2ca9e8fe0b67f9359929ef743126"><td class="mdescLeft">&#160;</td><td class="mdescRight">Clamps the given coordinates to the borders.  <a href="#adbdf2ca9e8fe0b67f9359929ef743126">More...</a><br /></td></tr>
 133 <tr class="separator:adbdf2ca9e8fe0b67f9359929ef743126"><td class="memSeparator" colspan="2">&#160;</td></tr>
 134 <tr class="memitem:aba42442a4c991cdbb52727fa370676f1"><td class="memItemLeft" align="right" valign="top">const DATA_TYPE4&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="warp__helpers_8h.xhtml#aba42442a4c991cdbb52727fa370676f1">read_texels4</a> (const <a class="el" href="struct_image.xhtml">Image</a> *in, const int8 coords)</td></tr>
 135 <tr class="memdesc:aba42442a4c991cdbb52727fa370676f1"><td class="mdescLeft">&#160;</td><td class="mdescRight">Reads four texels from the input image.  <a href="#aba42442a4c991cdbb52727fa370676f1">More...</a><br /></td></tr>
 136 <tr class="separator:aba42442a4c991cdbb52727fa370676f1"><td class="memSeparator" colspan="2">&#160;</td></tr>
 137 <tr class="memitem:a4caaeeb51ea58015267a9974675226d1"><td class="memItemLeft" align="right" valign="top">const float2&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="warp__helpers_8h.xhtml#a4caaeeb51ea58015267a9974675226d1">get_current_coords</a> ()</td></tr>
 138 <tr class="memdesc:a4caaeeb51ea58015267a9974675226d1"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the current thread coordinates.  <a href="#a4caaeeb51ea58015267a9974675226d1">More...</a><br /></td></tr>
 139 <tr class="separator:a4caaeeb51ea58015267a9974675226d1"><td class="memSeparator" colspan="2">&#160;</td></tr>
 140 <tr class="memitem:a2d8047717d6464cad02c5979d09576db"><td class="memItemLeft" align="right" valign="top">const float8&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="warp__helpers_8h.xhtml#a2d8047717d6464cad02c5979d09576db">get_neighbour_coords</a> (const float2 coord)</td></tr>
 141 <tr class="memdesc:a2d8047717d6464cad02c5979d09576db"><td class="mdescLeft">&#160;</td><td class="mdescRight">Given a texel coordinates this function will return the following array of coordinates: [ P, right neighbour, below neighbour, below right neighbour ].  <a href="#a2d8047717d6464cad02c5979d09576db">More...</a><br /></td></tr>
 142 <tr class="separator:a2d8047717d6464cad02c5979d09576db"><td class="memSeparator" colspan="2">&#160;</td></tr>
 143 <tr class="memitem:a8eda58d341afa44da00ebf47f9349499"><td class="memItemLeft" align="right" valign="top">const DATA_TYPE4&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="warp__helpers_8h.xhtml#a8eda58d341afa44da00ebf47f9349499">bilinear_interpolate_with_border</a> (const <a class="el" href="struct_image.xhtml">Image</a> *in, const float8 coords, const float width, const float height, const float border_size)</td></tr>
 144 <tr class="memdesc:a8eda58d341afa44da00ebf47f9349499"><td class="mdescLeft">&#160;</td><td class="mdescRight">Computes the bilinear interpolation for each set of coordinates in the vector coords and returns the values.  <a href="#a8eda58d341afa44da00ebf47f9349499">More...</a><br /></td></tr>
 145 <tr class="separator:a8eda58d341afa44da00ebf47f9349499"><td class="memSeparator" colspan="2">&#160;</td></tr>
 146 <tr class="memitem:abea9f226daf3e0ad741d03cf7417d353"><td class="memItemLeft" align="right" valign="top">const DATA_TYPE4&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="warp__helpers_8h.xhtml#abea9f226daf3e0ad741d03cf7417d353">bilinear_interpolate</a> (const <a class="el" href="struct_image.xhtml">Image</a> *in, const float8 coords, const float width, const float height)</td></tr>
 147 <tr class="memdesc:abea9f226daf3e0ad741d03cf7417d353"><td class="mdescLeft">&#160;</td><td class="mdescRight">Computes the bilinear interpolation for each set of coordinates in the vector coords and returns the values.  <a href="#abea9f226daf3e0ad741d03cf7417d353">More...</a><br /></td></tr>
 148 <tr class="separator:abea9f226daf3e0ad741d03cf7417d353"><td class="memSeparator" colspan="2">&#160;</td></tr>
 149 </table>
 150 <h2 class="groupheader">Function Documentation</h2>
 151 <a class="anchor" id="abea9f226daf3e0ad741d03cf7417d353"></a>
 152 <div class="memitem">
 153 <div class="memproto">
 154 <table class="mlabels">
 155   <tr>
 156   <td class="mlabels-left">
 157       <table class="memname">
 158         <tr>
 159           <td class="memname">const DATA_TYPE4 bilinear_interpolate </td>
 160           <td>(</td>
 161           <td class="paramtype">const <a class="el" href="struct_image.xhtml">Image</a> *&#160;</td>
 162           <td class="paramname"><em>in</em>, </td>
 163         </tr>
 164         <tr>
 165           <td class="paramkey"></td>
 166           <td></td>
 167           <td class="paramtype">const float8&#160;</td>
 168           <td class="paramname"><em>coords</em>, </td>
 169         </tr>
 170         <tr>
 171           <td class="paramkey"></td>
 172           <td></td>
 173           <td class="paramtype">const float&#160;</td>
 174           <td class="paramname"><em>width</em>, </td>
 175         </tr>
 176         <tr>
 177           <td class="paramkey"></td>
 178           <td></td>
 179           <td class="paramtype">const float&#160;</td>
 180           <td class="paramname"><em>height</em>&#160;</td>
 181         </tr>
 182         <tr>
 183           <td></td>
 184           <td>)</td>
 185           <td></td><td></td>
 186         </tr>
 187       </table>
 188   </td>
 189   <td class="mlabels-right">
 190 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 191   </tr>
 192 </table>
 193 </div><div class="memdoc">
 194
 195 <p>Computes the bilinear interpolation for each set of coordinates in the vector coords and returns the values. </p>
 196 <dl class="params"><dt>Parameters</dt><dd>
 197   <table class="params">
 198     <tr><td class="paramdir">[in]</td><td class="paramname">in</td><td>Pointer to the source image. </td></tr>
 199     <tr><td class="paramdir">[in]</td><td class="paramname">coords</td><td><a class="el" href="struct_vector.xhtml" title="Structure to hold Vector information. ">Vector</a> of four 2D coordinates. Even pos is x and odd y. </td></tr>
 200     <tr><td class="paramdir">[in]</td><td class="paramname">width</td><td>Width of the image </td></tr>
 201     <tr><td class="paramdir">[in]</td><td class="paramname">height</td><td>Height of the image </td></tr>
 202   </table>
 203   </dd>
 204 </dl>
 205
 206 <p>Definition at line <a class="el" href="warp__helpers_8h_source.xhtml#l00135">135</a> of file <a class="el" href="warp__helpers_8h_source.xhtml">warp_helpers.h</a>.</p>
 207
 208 <p>References <a class="el" href="warp__helpers_8h_source.xhtml#l00094">bilinear_interpolate_with_border()</a>.</p>
 209
 210 <p>Referenced by <a class="el" href="remap_8cl_source.xhtml#l00113">remap_bilinear()</a>, <a class="el" href="warp__affine_8cl_source.xhtml#l00111">warp_affine_bilinear()</a>, and <a class="el" href="warp__perspective_8cl_source.xhtml#l00119">warp_perspective_bilinear()</a>.</p>
 211 <div class="fragment"><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;{</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="warp__helpers_8h.xhtml#a8eda58d341afa44da00ebf47f9349499">bilinear_interpolate_with_border</a>(in, coords, width, height, 1);</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;}</div><div class="ttc" id="warp__helpers_8h_xhtml_a8eda58d341afa44da00ebf47f9349499"><div class="ttname"><a href="warp__helpers_8h.xhtml#a8eda58d341afa44da00ebf47f9349499">bilinear_interpolate_with_border</a></div><div class="ttdeci">const DATA_TYPE4 bilinear_interpolate_with_border(const Image *in, const float8 coords, const float width, const float height, const float border_size)</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#l00094">warp_helpers.h:94</a></div></div>
 212 </div><!-- fragment -->
 213 </div>
 214 </div>
 215 <a class="anchor" id="a8eda58d341afa44da00ebf47f9349499"></a>
 216 <div class="memitem">
 217 <div class="memproto">
 218 <table class="mlabels">
 219   <tr>
 220   <td class="mlabels-left">
 221       <table class="memname">
 222         <tr>
 223           <td class="memname">const DATA_TYPE4 bilinear_interpolate_with_border </td>
 224           <td>(</td>
 225           <td class="paramtype">const <a class="el" href="struct_image.xhtml">Image</a> *&#160;</td>
 226           <td class="paramname"><em>in</em>, </td>
 227         </tr>
 228         <tr>
 229           <td class="paramkey"></td>
 230           <td></td>
 231           <td class="paramtype">const float8&#160;</td>
 232           <td class="paramname"><em>coords</em>, </td>
 233         </tr>
 234         <tr>
 235           <td class="paramkey"></td>
 236           <td></td>
 237           <td class="paramtype">const float&#160;</td>
 238           <td class="paramname"><em>width</em>, </td>
 239         </tr>
 240         <tr>
 241           <td class="paramkey"></td>
 242           <td></td>
 243           <td class="paramtype">const float&#160;</td>
 244           <td class="paramname"><em>height</em>, </td>
 245         </tr>
 246         <tr>
 247           <td class="paramkey"></td>
 248           <td></td>
 249           <td class="paramtype">const float&#160;</td>
 250           <td class="paramname"><em>border_size</em>&#160;</td>
 251         </tr>
 252         <tr>
 253           <td></td>
 254           <td>)</td>
 255           <td></td><td></td>
 256         </tr>
 257       </table>
 258   </td>
 259   <td class="mlabels-right">
 260 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 261   </tr>
 262 </table>
 263 </div><div class="memdoc">
 264
 265 <p>Computes the bilinear interpolation for each set of coordinates in the vector coords and returns the values. </p>
 266 <dl class="params"><dt>Parameters</dt><dd>
 267   <table class="params">
 268     <tr><td class="paramdir">[in]</td><td class="paramname">in</td><td>Pointer to the source image. </td></tr>
 269     <tr><td class="paramdir">[in]</td><td class="paramname">coords</td><td><a class="el" href="struct_vector.xhtml" title="Structure to hold Vector information. ">Vector</a> of four 2D coordinates. Even pos is x and odd y. </td></tr>
 270     <tr><td class="paramdir">[in]</td><td class="paramname">width</td><td>Width of the image </td></tr>
 271     <tr><td class="paramdir">[in]</td><td class="paramname">height</td><td>Height of the image </td></tr>
 272     <tr><td class="paramdir">[in]</td><td class="paramname">border_size</td><td>Border size </td></tr>
 273   </table>
 274   </dd>
 275 </dl>
 276
 277 <p>Definition at line <a class="el" href="warp__helpers_8h_source.xhtml#l00094">94</a> of file <a class="el" href="warp__helpers_8h_source.xhtml">warp_helpers.h</a>.</p>
 278
 279 <p>References <a class="el" href="validation_2_c_l_2_g_e_m_m_8cpp_source.xhtml#l00121">arm_compute::test::validation::a</a>, <a class="el" href="validation_2_c_l_2_g_e_m_m_8cpp_source.xhtml#l00122">arm_compute::test::validation::b</a>, <a class="el" href="warp__helpers_8h_source.xhtml#l00034">clamp_to_border_with_size()</a>, <a class="el" href="fixed__point_8h_source.xhtml#l00098">CONVERT</a>, <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, <a class="el" href="warp__helpers_8h_source.xhtml#l00081">get_neighbour_coords()</a>, <a class="el" href="helpers_8h_source.xhtml#l00303">offset()</a>, and <a class="el" href="fixed__point_8h_source.xhtml#l00093">VEC_DATA_TYPE</a>.</p>
 280
 281 <p>Referenced by <a class="el" href="warp__helpers_8h_source.xhtml#l00135">bilinear_interpolate()</a>, and <a class="el" href="scale_8cl_source.xhtml#l00122">scale_bilinear()</a>.</p>
 282 <div class="fragment"><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;{</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    <span class="comment">// If any of the 4 texels is out of the image&#39;s boundaries we use the border value (REPLICATE or CONSTANT) for any texel out of the image.</span></div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;    <span class="comment">// Sets the 4x4 coordinates for each of the four input texels</span></div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    <span class="keyword">const</span> float8  fc = floor(coords);</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    <span class="keyword">const</span> float16 c1 = (float16)(</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;                           <a class="code" href="warp__helpers_8h.xhtml#aaef9851523cbc6f833700f0eb572002b">clamp_to_border_with_size</a>(<a class="code" href="warp__helpers_8h.xhtml#a2d8047717d6464cad02c5979d09576db">get_neighbour_coords</a>((float2)(fc.s0, fc.s1)), width, height, border_size),</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;                           <a class="code" href="warp__helpers_8h.xhtml#aaef9851523cbc6f833700f0eb572002b">clamp_to_border_with_size</a>(<a class="code" href="warp__helpers_8h.xhtml#a2d8047717d6464cad02c5979d09576db">get_neighbour_coords</a>((float2)(fc.s2, fc.s3)), width, height, border_size));</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    <span class="keyword">const</span> float16 c2 = (float16)(</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;                           <a class="code" href="warp__helpers_8h.xhtml#aaef9851523cbc6f833700f0eb572002b">clamp_to_border_with_size</a>(<a class="code" href="warp__helpers_8h.xhtml#a2d8047717d6464cad02c5979d09576db">get_neighbour_coords</a>((float2)(fc.s4, fc.s5)), width, height, border_size),</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;                           <a class="code" href="warp__helpers_8h.xhtml#aaef9851523cbc6f833700f0eb572002b">clamp_to_border_with_size</a>(<a class="code" href="warp__helpers_8h.xhtml#a2d8047717d6464cad02c5979d09576db">get_neighbour_coords</a>((float2)(fc.s6, fc.s7)), width, height, border_size));</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;    <span class="comment">// Loads the values from the input image</span></div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    <span class="keyword">const</span> float16 t = (float16)(</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;                          <span class="comment">/* tl, tr, bl, br */</span></div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;                          * ((__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(in, c1.s0, c1.s1)), *((__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(in, c1.s2, c1.s3)),</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;                          *((__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(in, c1.s4, c1.s5)), *((__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(in, c1.s6, c1.s7)),</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;                          *((__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(in, c1.s8, c1.s9)), *((__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(in, c1.sa, c1.sb)),</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;                          *((__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xh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 283 <div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_aac40b7097f2bda9274ae07fa33d15a79"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#aac40b7097f2bda9274ae07fa33d15a79">arm_compute::test::validation::a</a></div><div class="ttdeci">CLTensor a</div><div class="ttdef"><b>Definition:</b> <a href="validation_2_c_l_2_g_e_m_m_8cpp_source.xhtml#l00121">GEMM.cpp:121</a></div></div>
 284 <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>
 285 <div class="ttc" id="helpers_8h_xhtml_a009469e4d9b8fce3b6d5e97d2077827d"><div class="ttname"><a href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a></div><div class="ttdeci">__global uchar * offset(const Image *img, int x, int y)</div><div class="ttdoc">Get the pointer position of a Image. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00303">helpers.h:303</a></div></div>
 286 <div class="ttc" id="warp__helpers_8h_xhtml_a2d8047717d6464cad02c5979d09576db"><div class="ttname"><a href="warp__helpers_8h.xhtml#a2d8047717d6464cad02c5979d09576db">get_neighbour_coords</a></div><div class="ttdeci">const float8 get_neighbour_coords(const float2 coord)</div><div class="ttdoc">Given a texel coordinates this function will return the following array of coordinates: [ P...</div><div class="ttdef"><b>Definition:</b> <a href="warp__helpers_8h_source.xhtml#l00081">warp_helpers.h:81</a></div></div>
 287 <div class="ttc" id="fixed__point_8h_xhtml_a36f754c05b6fddf6df0d8d0a74f8159f"><div class="ttname"><a href="fixed__point_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="fixed__point_8h_source.xhtml#l00093">fixed_point.h:93</a></div></div>
 288 <div class="ttc" id="warp__helpers_8h_xhtml_aaef9851523cbc6f833700f0eb572002b"><div class="ttname"><a href="warp__helpers_8h.xhtml#aaef9851523cbc6f833700f0eb572002b">clamp_to_border_with_size</a></div><div class="ttdeci">const float8 clamp_to_border_with_size(float8 coords, const float width, const float height, const float border_size)</div><div class="ttdoc">Clamps the given coordinates to the borders according to the border size. </div><div class="ttdef"><b>Definition:</b> <a href="warp__helpers_8h_source.xhtml#l00034">warp_helpers.h:34</a></div></div>
 289 <div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_a7b8004eef325a40dd43eb80755610fff"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#a7b8004eef325a40dd43eb80755610fff">arm_compute::test::validation::b</a></div><div class="ttdeci">CLTensor b</div><div class="ttdef"><b>Definition:</b> <a href="validation_2_c_l_2_g_e_m_m_8cpp_source.xhtml#l00122">GEMM.cpp:122</a></div></div>
 290 </div><!-- fragment -->
 291 </div>
 292 </div>
 293 <a class="anchor" id="adbdf2ca9e8fe0b67f9359929ef743126"></a>
 294 <div class="memitem">
 295 <div class="memproto">
 296 <table class="mlabels">
 297   <tr>
 298   <td class="mlabels-left">
 299       <table class="memname">
 300         <tr>
 301           <td class="memname">const float8 clamp_to_border </td>
 302           <td>(</td>
 303           <td class="paramtype">float8&#160;</td>
 304           <td class="paramname"><em>coords</em>, </td>
 305         </tr>
 306         <tr>
 307           <td class="paramkey"></td>
 308           <td></td>
 309           <td class="paramtype">const float&#160;</td>
 310           <td class="paramname"><em>width</em>, </td>
 311         </tr>
 312         <tr>
 313           <td class="paramkey"></td>
 314           <td></td>
 315           <td class="paramtype">const float&#160;</td>
 316           <td class="paramname"><em>height</em>&#160;</td>
 317         </tr>
 318         <tr>
 319           <td></td>
 320           <td>)</td>
 321           <td></td><td></td>
 322         </tr>
 323       </table>
 324   </td>
 325   <td class="mlabels-right">
 326 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 327   </tr>
 328 </table>
 329 </div><div class="memdoc">
 330
 331 <p>Clamps the given coordinates to the borders. </p>
 332 <dl class="params"><dt>Parameters</dt><dd>
 333   <table class="params">
 334     <tr><td class="paramdir">[in]</td><td class="paramname">coords</td><td><a class="el" href="struct_vector.xhtml" title="Structure to hold Vector information. ">Vector</a> of 2D coordinates to clamp. Even positions are X coords, odd positions are Y coords. </td></tr>
 335     <tr><td class="paramdir">[in]</td><td class="paramname">width</td><td>Width of the image </td></tr>
 336     <tr><td class="paramdir">[in]</td><td class="paramname">height</td><td>Height of the image </td></tr>
 337   </table>
 338   </dd>
 339 </dl>
 340
 341 <p>Definition at line <a class="el" href="warp__helpers_8h_source.xhtml#l00048">48</a> of file <a class="el" href="warp__helpers_8h_source.xhtml">warp_helpers.h</a>.</p>
 342
 343 <p>References <a class="el" href="warp__helpers_8h_source.xhtml#l00034">clamp_to_border_with_size()</a>.</p>
 344
 345 <p>Referenced by <a class="el" href="remap_8cl_source.xhtml#l00113">remap_bilinear()</a>, <a class="el" href="remap_8cl_source.xhtml#l00059">remap_nearest_neighbour()</a>, <a class="el" href="warp__affine_8cl_source.xhtml#l00079">warp_affine_nearest_neighbour()</a>, and <a class="el" href="warp__perspective_8cl_source.xhtml#l00087">warp_perspective_nearest_neighbour()</a>.</p>
 346 <div class="fragment"><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;{</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="warp__helpers_8h.xhtml#aaef9851523cbc6f833700f0eb572002b">clamp_to_border_with_size</a>(coords, width, height, 1);</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;}</div><div class="ttc" id="warp__helpers_8h_xhtml_aaef9851523cbc6f833700f0eb572002b"><div class="ttname"><a href="warp__helpers_8h.xhtml#aaef9851523cbc6f833700f0eb572002b">clamp_to_border_with_size</a></div><div class="ttdeci">const float8 clamp_to_border_with_size(float8 coords, const float width, const float height, const float border_size)</div><div class="ttdoc">Clamps the given coordinates to the borders according to the border size. </div><div class="ttdef"><b>Definition:</b> <a href="warp__helpers_8h_source.xhtml#l00034">warp_helpers.h:34</a></div></div>
 347 </div><!-- fragment -->
 348 </div>
 349 </div>
 350 <a class="anchor" id="aaef9851523cbc6f833700f0eb572002b"></a>
 351 <div class="memitem">
 352 <div class="memproto">
 353 <table class="mlabels">
 354   <tr>
 355   <td class="mlabels-left">
 356       <table class="memname">
 357         <tr>
 358           <td class="memname">const float8 clamp_to_border_with_size </td>
 359           <td>(</td>
 360           <td class="paramtype">float8&#160;</td>
 361           <td class="paramname"><em>coords</em>, </td>
 362         </tr>
 363         <tr>
 364           <td class="paramkey"></td>
 365           <td></td>
 366           <td class="paramtype">const float&#160;</td>
 367           <td class="paramname"><em>width</em>, </td>
 368         </tr>
 369         <tr>
 370           <td class="paramkey"></td>
 371           <td></td>
 372           <td class="paramtype">const float&#160;</td>
 373           <td class="paramname"><em>height</em>, </td>
 374         </tr>
 375         <tr>
 376           <td class="paramkey"></td>
 377           <td></td>
 378           <td class="paramtype">const float&#160;</td>
 379           <td class="paramname"><em>border_size</em>&#160;</td>
 380         </tr>
 381         <tr>
 382           <td></td>
 383           <td>)</td>
 384           <td></td><td></td>
 385         </tr>
 386       </table>
 387   </td>
 388   <td class="mlabels-right">
 389 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 390   </tr>
 391 </table>
 392 </div><div class="memdoc">
 393
 394 <p>Clamps the given coordinates to the borders according to the border size. </p>
 395 <dl class="params"><dt>Parameters</dt><dd>
 396   <table class="params">
 397     <tr><td class="paramdir">[in]</td><td class="paramname">coords</td><td><a class="el" href="struct_vector.xhtml" title="Structure to hold Vector information. ">Vector</a> of 2D coordinates to clamp. Even positions are X coords, odd positions are Y coords. </td></tr>
 398     <tr><td class="paramdir">[in]</td><td class="paramname">width</td><td>Width of the image </td></tr>
 399     <tr><td class="paramdir">[in]</td><td class="paramname">height</td><td>Height of the image </td></tr>
 400     <tr><td class="paramdir">[in]</td><td class="paramname">border_size</td><td>Border size of the image </td></tr>
 401   </table>
 402   </dd>
 403 </dl>
 404
 405 <p>Definition at line <a class="el" href="warp__helpers_8h_source.xhtml#l00034">34</a> of file <a class="el" href="warp__helpers_8h_source.xhtml">warp_helpers.h</a>.</p>
 406
 407 <p>References <a class="el" href="_utility_8h_source.xhtml#l00084">arm_compute::utility::clamp()</a>.</p>
 408
 409 <p>Referenced by <a class="el" href="warp__helpers_8h_source.xhtml#l00094">bilinear_interpolate_with_border()</a>, <a class="el" href="warp__helpers_8h_source.xhtml#l00048">clamp_to_border()</a>, and <a class="el" href="scale_8cl_source.xhtml#l00086">scale_nearest_neighbour()</a>.</p>
 410 <div class="fragment"><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;{</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;    <span class="keyword">const</span> float4 clamped_x = <a class="code" href="namespacearm__compute_1_1utility.xhtml#a12c3c62f510452805c289e180ec78bb7">clamp</a>(coords.even, 0.0f - border_size, width - 1 + border_size);</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;    <span class="keyword">const</span> float4 clamped_y = <a class="code" href="namespacearm__compute_1_1utility.xhtml#a12c3c62f510452805c289e180ec78bb7">clamp</a>(coords.odd, 0.0f - border_size, height - 1 + border_size);</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;    <span class="keywordflow">return</span> (float8)(clamped_x.s0, clamped_y.s0, clamped_x.s1, clamped_y.s1, clamped_x.s2, clamped_y.s2, clamped_x.s3, clamped_y.s3);</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;}</div><div class="ttc" id="namespacearm__compute_1_1utility_xhtml_a12c3c62f510452805c289e180ec78bb7"><div class="ttname"><a href="namespacearm__compute_1_1utility.xhtml#a12c3c62f510452805c289e180ec78bb7">arm_compute::utility::clamp</a></div><div class="ttdeci">T clamp(const T &amp;n, const T &amp;lower, const T &amp;upper)</div><div class="ttdoc">Performs clamping among a lower and upper value. </div><div class="ttdef"><b>Definition:</b> <a href="_utility_8h_source.xhtml#l00084">Utility.h:84</a></div></div>
 411 </div><!-- fragment -->
 412 </div>
 413 </div>
 414 <a class="anchor" id="a4caaeeb51ea58015267a9974675226d1"></a>
 415 <div class="memitem">
 416 <div class="memproto">
 417 <table class="mlabels">
 418   <tr>
 419   <td class="mlabels-left">
 420       <table class="memname">
 421         <tr>
 422           <td class="memname">const float2 get_current_coords </td>
 423           <td>(</td>
 424           <td class="paramname"></td><td>)</td>
 425           <td></td>
 426         </tr>
 427       </table>
 428   </td>
 429   <td class="mlabels-right">
 430 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 431   </tr>
 432 </table>
 433 </div><div class="memdoc">
 434
 435 <p>Returns the current thread coordinates. </p>
 436
 437 <p>Definition at line <a class="el" href="warp__helpers_8h_source.xhtml#l00067">67</a> of file <a class="el" href="warp__helpers_8h_source.xhtml">warp_helpers.h</a>.</p>
 438
 439 <p>Referenced by <a class="el" href="scale_8cl_source.xhtml#l00122">scale_bilinear()</a>, <a class="el" href="scale_8cl_source.xhtml#l00086">scale_nearest_neighbour()</a>, <a class="el" href="warp__affine_8cl_source.xhtml#l00111">warp_affine_bilinear()</a>, <a class="el" href="warp__affine_8cl_source.xhtml#l00079">warp_affine_nearest_neighbour()</a>, <a class="el" href="warp__perspective_8cl_source.xhtml#l00119">warp_perspective_bilinear()</a>, and <a class="el" href="warp__perspective_8cl_source.xhtml#l00087">warp_perspective_nearest_neighbour()</a>.</p>
 440 <div class="fragment"><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;{</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;    <span class="keywordflow">return</span> (float2)(get_global_id(0) * 4, get_global_id(1));</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;}</div></div><!-- fragment -->
 441 </div>
 442 </div>
 443 <a class="anchor" id="a2d8047717d6464cad02c5979d09576db"></a>
 444 <div class="memitem">
 445 <div class="memproto">
 446 <table class="mlabels">
 447   <tr>
 448   <td class="mlabels-left">
 449       <table class="memname">
 450         <tr>
 451           <td class="memname">const float8 get_neighbour_coords </td>
 452           <td>(</td>
 453           <td class="paramtype">const float2&#160;</td>
 454           <td class="paramname"><em>coord</em></td><td>)</td>
 455           <td></td>
 456         </tr>
 457       </table>
 458   </td>
 459   <td class="mlabels-right">
 460 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 461   </tr>
 462 </table>
 463 </div><div class="memdoc">
 464
 465 <p>Given a texel coordinates this function will return the following array of coordinates: [ P, right neighbour, below neighbour, below right neighbour ]. </p>
 466 <dl class="section note"><dt>Note</dt><dd>No checks to see if the coordinates are out of the image are done here.</dd></dl>
 467 <dl class="params"><dt>Parameters</dt><dd>
 468   <table class="params">
 469     <tr><td class="paramdir">[in]</td><td class="paramname">coord</td><td>Input coordinates</td></tr>
 470   </table>
 471   </dd>
 472 </dl>
 473 <dl class="section return"><dt>Returns</dt><dd>vector of 8 floats with the coordinates, even positions are x and odd y. </dd></dl>
 474
 475 <p>Definition at line <a class="el" href="warp__helpers_8h_source.xhtml#l00081">81</a> of file <a class="el" href="warp__helpers_8h_source.xhtml">warp_helpers.h</a>.</p>
 476
 477 <p>Referenced by <a class="el" href="warp__helpers_8h_source.xhtml#l00094">bilinear_interpolate_with_border()</a>.</p>
 478 <div class="fragment"><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;{</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    <span class="keywordflow">return</span> (float8)(<span class="comment">/*tl*/</span> coord.s0, coord.s1, <span class="comment">/*tr*/</span> coord.s0 + 1, coord.s1, <span class="comment">/*bl*/</span> coord.s0, coord.s1 + 1, <span class="comment">/*br*/</span> coord.s0 + 1, coord.s1 + 1);</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;}</div></div><!-- fragment -->
 479 </div>
 480 </div>
 481 <a class="anchor" id="aba42442a4c991cdbb52727fa370676f1"></a>
 482 <div class="memitem">
 483 <div class="memproto">
 484 <table class="mlabels">
 485   <tr>
 486   <td class="mlabels-left">
 487       <table class="memname">
 488         <tr>
 489           <td class="memname">const DATA_TYPE4 read_texels4 </td>
 490           <td>(</td>
 491           <td class="paramtype">const <a class="el" href="struct_image.xhtml">Image</a> *&#160;</td>
 492           <td class="paramname"><em>in</em>, </td>
 493         </tr>
 494         <tr>
 495           <td class="paramkey"></td>
 496           <td></td>
 497           <td class="paramtype">const int8&#160;</td>
 498           <td class="paramname"><em>coords</em>&#160;</td>
 499         </tr>
 500         <tr>
 501           <td></td>
 502           <td>)</td>
 503           <td></td><td></td>
 504         </tr>
 505       </table>
 506   </td>
 507   <td class="mlabels-right">
 508 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 509   </tr>
 510 </table>
 511 </div><div class="memdoc">
 512
 513 <p>Reads four texels from the input image. </p>
 514 <p>The coords vector is used to determine which texels to be read.</p>
 515 <dl class="params"><dt>Parameters</dt><dd>
 516   <table class="params">
 517     <tr><td class="paramdir">[in]</td><td class="paramname">in</td><td>Pointer to the source image. </td></tr>
 518     <tr><td class="paramdir">[in]</td><td class="paramname">coords</td><td><a class="el" href="struct_vector.xhtml" title="Structure to hold Vector information. ">Vector</a> of coordinates to be read from the image. </td></tr>
 519   </table>
 520   </dd>
 521 </dl>
 522
 523 <p>Definition at line <a class="el" href="warp__helpers_8h_source.xhtml#l00058">58</a> of file <a class="el" href="warp__helpers_8h_source.xhtml">warp_helpers.h</a>.</p>
 524
 525 <p>References <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, <a class="el" href="helpers_8h_source.xhtml#l00303">offset()</a>, and <a class="el" href="fixed__point_8h_source.xhtml#l00093">VEC_DATA_TYPE</a>.</p>
 526
 527 <p>Referenced by <a class="el" href="remap_8cl_source.xhtml#l00059">remap_nearest_neighbour()</a>, <a class="el" href="scale_8cl_source.xhtml#l00086">scale_nearest_neighbour()</a>, <a class="el" href="warp__affine_8cl_source.xhtml#l00079">warp_affine_nearest_neighbour()</a>, and <a class="el" href="warp__perspective_8cl_source.xhtml#l00087">warp_perspective_nearest_neighbour()</a>.</p>
 528 <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;    <span class="keywordflow">return</span> (<a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 4))(*((__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(in, coords.s0, coords.s1)),</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;                                         *((__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(in, coords.s2, coords.s3)),</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;                                         *((__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(in, coords.s4, coords.s5)),</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;                                         *((__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(in, coords.s6, coords.s7)));</div><div class="line"><a name="l00064"></a><span class="lineno">   64</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>
 529 <div class="ttc" id="helpers_8h_xhtml_a009469e4d9b8fce3b6d5e97d2077827d"><div class="ttname"><a href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a></div><div class="ttdeci">__global uchar * offset(const Image *img, int x, int y)</div><div class="ttdoc">Get the pointer position of a Image. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00303">helpers.h:303</a></div></div>
 530 <div class="ttc" id="fixed__point_8h_xhtml_a36f754c05b6fddf6df0d8d0a74f8159f"><div class="ttname"><a href="fixed__point_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="fixed__point_8h_source.xhtml#l00093">fixed_point.h:93</a></div></div>
 531 </div><!-- fragment -->
 532 </div>
 533 </div>
 534 </div><!-- contents -->
 535 </div><!-- doc-content -->
 536 <!-- start footer part -->
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 539     <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__helpers_8h.xhtml">warp_helpers.h</a></li>
 540     <li class="footer">Generated on Wed May 23 2018 11:36:39 for Compute Library by
 541     <a href="http://www.doxygen.org/index.html">
 542     <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.11 </li>
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