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 115 <div class="title">mean_stddev.cl</div>  </div>
 116 </div><!--header-->
 117 <div class="contents">
 118 <a href="mean__stddev_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>&#160;<span class="comment">/*</span></div>
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 140 <div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> */</span></div>
 141 <div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="helpers_8h.xhtml">helpers.h</a>&quot;</span></div>
 142 <div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div>
 143 <div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#pragma OPENCL EXTENSION cl_khr_int64_base_atomics : enable</span></div>
 144 <div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#pragma OPENCL EXTENSION cl_khr_int64_extended_atomics : enable</span></div>
 145 <div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor"></span></div>
 146 <div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="mean__stddev_8cl.xhtml#a35eedf10476f85a87aa70a4292dd380a">   43</a></span>&#160;__kernel <span class="keywordtype">void</span> <a class="code" href="mean__stddev_8cl.xhtml#a35eedf10476f85a87aa70a4292dd380a">mean_stddev_accumulate</a>(</div>
 147 <div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(src),</div>
 148 <div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    uint     height,</div>
 149 <div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;    __global ulong *global_sum</div>
 150 <div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;#ifdef STDDEV</div>
 151 <div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;    ,</div>
 152 <div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;    __global ulong *global_sum_sq</div>
 153 <div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;#endif <span class="comment">/* STDDEV */</span></div>
 154 <div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;)</div>
 155 <div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;{</div>
 156 <div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;    <span class="comment">// Get pixels pointer</span></div>
 157 <div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> src = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src);</div>
 158 <div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;</div>
 159 <div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    uint8 tmp_sum = 0;</div>
 160 <div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;<span class="preprocessor">#ifdef STDDEV</span></div>
 161 <div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<span class="preprocessor"></span>    uint8 tmp_sum_sq = 0;</div>
 162 <div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* STDDEV */</span><span class="preprocessor"></span></div>
 163 <div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;<span class="preprocessor"></span>    <span class="comment">// Calculate partial sum</span></div>
 164 <div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;    <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = 0; i &lt; height; i++)</div>
 165 <div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    {</div>
 166 <div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;        <span class="comment">// Load data</span></div>
 167 <div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;        uint8 data = convert_uint8(vload8(0, <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src, 0, i)));</div>
 168 <div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;</div>
 169 <div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;        tmp_sum += data;</div>
 170 <div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;<span class="preprocessor">#ifdef STDDEV</span></div>
 171 <div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;<span class="preprocessor"></span>        tmp_sum_sq += data * data;</div>
 172 <div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* STDDEV */</span><span class="preprocessor"></span></div>
 173 <div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;<span class="preprocessor"></span>    }</div>
 174 <div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    <span class="comment">// Perform reduction</span></div>
 175 <div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    tmp_sum.s0123 += tmp_sum.s4567;</div>
 176 <div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    tmp_sum.s01 += tmp_sum.s23;</div>
 177 <div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    atom_add(global_sum, tmp_sum.s0 + tmp_sum.s1);</div>
 178 <div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;</div>
 179 <div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;<span class="preprocessor">#ifdef STDDEV</span></div>
 180 <div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="preprocessor"></span>    tmp_sum_sq.s0123 += tmp_sum_sq.s4567;</div>
 181 <div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    tmp_sum_sq.s01 += tmp_sum_sq.s23;</div>
 182 <div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    atom_add(global_sum_sq, tmp_sum_sq.s0 + tmp_sum_sq.s1);</div>
 183 <div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* STDDEV */</span><span class="preprocessor"></span></div>
 184 <div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;<span class="preprocessor"></span>}</div>
 185 <div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;</div>
 186 <div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;<span class="preprocessor">#pragma OPENCL EXTENSION cl_khr_int64_base_atomics : disable</span></div>
 187 <div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#pragma OPENCL EXTENSION cl_khr_int64_extended_atomics : disable</span></div>
 188 <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>
 189 <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#l00295">helpers.h:295</a></div></div>
 190 <div class="ttc" id="helpers_8h_xhtml"><div class="ttname"><a href="helpers_8h.xhtml">helpers.h</a></div></div>
 191 <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>
 192 <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>
 193 <div class="ttc" id="mean__stddev_8cl_xhtml_a35eedf10476f85a87aa70a4292dd380a"><div class="ttname"><a href="mean__stddev_8cl.xhtml#a35eedf10476f85a87aa70a4292dd380a">mean_stddev_accumulate</a></div><div class="ttdeci">__kernel void mean_stddev_accumulate(__global uchar *src_ptr, uint src_stride_x, uint src_step_x, uint src_stride_y, uint src_step_y, uint src_offset_first_element_in_bytes, uint height, __global ulong *global_sum, __global ulong *global_sum_sq)</div><div class="ttdoc">This function calculates the sum and sum of squares of a given input image. </div><div class="ttdef"><b>Definition:</b> <a href="mean__stddev_8cl_source.xhtml#l00043">mean_stddev.cl:43</a></div></div>
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 202     <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.6 </li>
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