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|  <span id="projectnumber">17.10</span> |
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| <div class="title">scale.cl</div> </div> |
| </div><!--header--> |
| <div class="contents"> |
| <a href="scale_8cl.xhtml">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2016, 2017 ARM Limited.</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * SPDX-License-Identifier: MIT</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a copy</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * of this software and associated documentation files (the "Software"), to</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * deal in the Software without restriction, including without limitation the</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * sell copies of the Software, and to permit persons to whom the Software is</span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * furnished to do so, subject to the following conditions:</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * The above copyright notice and this permission notice shall be included in all</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * copies or substantial portions of the Software.</span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</span></div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * SOFTWARE.</span></div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "<a class="code" href="helpers_8h.xhtml">helpers.h</a>"</span></div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "<a class="code" href="warp__helpers_8h.xhtml">warp_helpers.h</a>"</span></div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div> |
| <div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="scale_8cl.xhtml#a55c710b814464d9b8982c4eb6ca04dee"> 34</a></span> <span class="keyword">inline</span> <span class="keyword">const</span> float8 <a class="code" href="scale_8cl.xhtml#a55c710b814464d9b8982c4eb6ca04dee">transform_nearest</a>(<span class="keyword">const</span> float2 coord, <span class="keyword">const</span> float2 <a class="code" href="namespacearm__compute_1_1test_1_1validation_1_1reference.xhtml#a2c08fc82f2e4b9733cd0dacd6eabe579">scale</a>)</div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> {</div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <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="l00037"></a><span class="lineno"> 37</span>  <span class="keyword">const</span> float4 new_x = (in_x_coords + ((float4)(0.5f))) * (float4)(scale.s0);</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">const</span> float4 new_y = (float4)((coord.s1 + 0.5f) * scale.s1);</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <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="l00040"></a><span class="lineno"> 40</span> }</div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div> |
| <div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="scale_8cl.xhtml#a1990e87858b15b8fce3f63965fb9b86c"> 49</a></span> <span class="keyword">inline</span> <span class="keyword">const</span> float8 <a class="code" href="scale_8cl.xhtml#a1990e87858b15b8fce3f63965fb9b86c">transform_bilinear</a>(<span class="keyword">const</span> float2 coord, <span class="keyword">const</span> float2 <a class="code" href="namespacearm__compute_1_1test_1_1validation_1_1reference.xhtml#a2c08fc82f2e4b9733cd0dacd6eabe579">scale</a>)</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span> {</div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <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="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">const</span> float4 new_x = (in_x_coords + ((float4)(0.5f))) * (float4)(scale.s0) - (float4)(0.5f);</div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">const</span> float4 new_y = (float4)((coord.s1 + 0.5f) * scale.s1 - 0.5f);</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <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="l00055"></a><span class="lineno"> 55</span> }</div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div> |
| <div class="line"><a name="l00076"></a><span class="lineno"><a class="line" href="scale_8cl.xhtml#ace0505bd2794cb971269d525953b9b78"> 76</a></span> __kernel <span class="keywordtype">void</span> <a class="code" href="scale_8cl.xhtml#ace0505bd2794cb971269d525953b9b78">scale_nearest_neighbour</a>(</div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(in),</div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(out),</div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> input_width,</div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> input_height,</div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> scale_x,</div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> scale_y)</div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span> {</div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <a class="code" href="struct_image.xhtml">Image</a> in = <a class="code" href="helpers_8h.xhtml#a4334a4a76f8e9628c0fb9e1acf616e2a">CONVERT_TO_IMAGE_STRUCT_NO_STEP</a>(in);</div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <a class="code" href="struct_image.xhtml">Image</a> out = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(out);</div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">const</span> float2 r = (float2)(scale_x, scale_y);</div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keyword">const</span> float8 tc = <a class="code" href="warp__helpers_8h.xhtml#adbdf2ca9e8fe0b67f9359929ef743126">clamp_to_border</a>(<a class="code" href="scale_8cl.xhtml#a55c710b814464d9b8982c4eb6ca04dee">transform_nearest</a>(<a class="code" href="warp__helpers_8h.xhtml#a4caaeeb51ea58015267a9974675226d1">get_current_coords</a>(), r), input_width, input_height);</div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  vstore4(<a class="code" href="warp__helpers_8h.xhtml#aba42442a4c991cdbb52727fa370676f1">read_texels4</a>(&in, convert_int8(tc)), 0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)out.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span> }</div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div> |
| <div class="line"><a name="l00110"></a><span class="lineno"><a class="line" href="scale_8cl.xhtml#afafd19fca28a0b88836611dae58ed787"> 110</a></span> __kernel <span class="keywordtype">void</span> <a class="code" href="scale_8cl.xhtml#afafd19fca28a0b88836611dae58ed787">scale_bilinear</a>(</div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(in),</div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(out),</div> |
| <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> input_width,</div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> input_height,</div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> scale_x,</div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> scale_y)</div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span> {</div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <a class="code" href="struct_image.xhtml">Image</a> in = <a class="code" href="helpers_8h.xhtml#a4334a4a76f8e9628c0fb9e1acf616e2a">CONVERT_TO_IMAGE_STRUCT_NO_STEP</a>(in);</div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <a class="code" href="struct_image.xhtml">Image</a> out = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(out);</div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keyword">const</span> float2 r = (float2)(scale_x, scale_y);</div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keyword">const</span> float8 tc = <a class="code" href="scale_8cl.xhtml#a1990e87858b15b8fce3f63965fb9b86c">transform_bilinear</a>(<a class="code" href="warp__helpers_8h.xhtml#a4caaeeb51ea58015267a9974675226d1">get_current_coords</a>(), r);</div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  vstore4(<a class="code" href="warp__helpers_8h.xhtml#abea9f226daf3e0ad741d03cf7417d353">bilinear_interpolate</a>(&in, tc, input_width, input_height), 0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)out.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span> }</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#l00033">warp_helpers.h:33</a></div></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> |
| <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#l00099">helpers.h:99</a></div></div> |
| <div class="ttc" id="helpers_8h_xhtml_a22f42fcf2077d951271df83b55c1a71a"><div class="ttname"><a href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a></div><div class="ttdeci">#define IMAGE_DECLARATION(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00060">helpers.h:60</a></div></div> |
| <div class="ttc" id="scale_8cl_xhtml_afafd19fca28a0b88836611dae58ed787"><div class="ttname"><a href="scale_8cl.xhtml#afafd19fca28a0b88836611dae58ed787">scale_bilinear</a></div><div class="ttdeci">__kernel void scale_bilinear(__global uchar *in_ptr, uint in_stride_x, uint in_step_x, uint in_stride_y, uint in_step_y, uint in_offset_first_element_in_bytes, __global uchar *out_ptr, uint out_stride_x, uint out_step_x, uint out_stride_y, uint out_step_y, uint out_offset_first_element_in_bytes, const float input_width, const float input_height, const float scale_x, const float scale_y)</div><div class="ttdoc">Performs an affine transformation on an image interpolating with the BILINEAR method. </div><div class="ttdef"><b>Definition:</b> <a href="scale_8cl_source.xhtml#l00110">scale.cl:110</a></div></div> |
| <div class="ttc" id="scale_8cl_xhtml_ace0505bd2794cb971269d525953b9b78"><div class="ttname"><a href="scale_8cl.xhtml#ace0505bd2794cb971269d525953b9b78">scale_nearest_neighbour</a></div><div class="ttdeci">__kernel void scale_nearest_neighbour(__global uchar *in_ptr, uint in_stride_x, uint in_step_x, uint in_stride_y, uint in_step_y, uint in_offset_first_element_in_bytes, __global uchar *out_ptr, uint out_stride_x, uint out_step_x, uint out_stride_y, uint out_step_y, uint out_offset_first_element_in_bytes, const float input_width, const float input_height, const float scale_x, const float scale_y)</div><div class="ttdoc">Performs an affine transformation on an image interpolating with the NEAREAST NEIGHBOUR method...</div><div class="ttdef"><b>Definition:</b> <a href="scale_8cl_source.xhtml#l00076">scale.cl:76</a></div></div> |
| <div class="ttc" id="helpers_8h_xhtml"><div class="ttname"><a href="helpers_8h.xhtml">helpers.h</a></div></div> |
| <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#l00096">helpers.h:96</a></div></div> |
| <div class="ttc" id="scale_8cl_xhtml_a1990e87858b15b8fce3f63965fb9b86c"><div class="ttname"><a href="scale_8cl.xhtml#a1990e87858b15b8fce3f63965fb9b86c">transform_bilinear</a></div><div class="ttdeci">const float8 transform_bilinear(const float2 coord, const float2 scale)</div><div class="ttdoc">Transforms four 2D coordinates. </div><div class="ttdef"><b>Definition:</b> <a href="scale_8cl_source.xhtml#l00049">scale.cl:49</a></div></div> |
| <div class="ttc" id="scale_8cl_xhtml_a55c710b814464d9b8982c4eb6ca04dee"><div class="ttname"><a href="scale_8cl.xhtml#a55c710b814464d9b8982c4eb6ca04dee">transform_nearest</a></div><div class="ttdeci">const float8 transform_nearest(const float2 coord, const float2 scale)</div><div class="ttdoc">Transforms four 2D coordinates. </div><div class="ttdef"><b>Definition:</b> <a href="scale_8cl_source.xhtml#l00034">scale.cl:34</a></div></div> |
| <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#l00134">helpers.h:134</a></div></div> |
| <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#l00136">helpers.h:136</a></div></div> |
| <div class="ttc" id="warp__helpers_8h_xhtml"><div class="ttname"><a href="warp__helpers_8h.xhtml">warp_helpers.h</a></div></div> |
| <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#l00045">warp_helpers.h:45</a></div></div> |
| <div class="ttc" id="namespacearm__compute_1_1test_1_1validation_1_1reference_xhtml_a2c08fc82f2e4b9733cd0dacd6eabe579"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation_1_1reference.xhtml#a2c08fc82f2e4b9733cd0dacd6eabe579">arm_compute::test::validation::reference::scale</a></div><div class="ttdeci">SimpleTensor< T > scale(const SimpleTensor< T > &in, float scale_x, float scale_y, InterpolationPolicy policy, BorderMode border_mode, T constant_border_value)</div><div class="ttdef"><b>Definition:</b> <a href="_c_p_p_2_scale_8cpp_source.xhtml#l00039">Scale.cpp:39</a></div></div> |
| <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#l00054">warp_helpers.h:54</a></div></div> |
| <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#l00080">warp_helpers.h:80</a></div></div> |
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