documentation/harris__corners_8cl_source.xhtml

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 120 <a href="harris__corners_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><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Copyright (c) 2016, 2017 ARM Limited.</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * SPDX-License-Identifier: MIT</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<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>&#160;<span class="comment"> * of this software and associated documentation files (the &quot;Software&quot;), to</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<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>&#160;<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>&#160;<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>&#160;<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>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<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>&#160;<span class="comment"> * copies or substantial portions of the Software.</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> * THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<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>&#160;<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>&#160;<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>&#160;<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>&#160;<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>&#160;<span class="comment"> * SOFTWARE.</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> */</span></div><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><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div><div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="harris__corners_8cl.xhtml#a2cf3b8c23c9f8f383d81d13bfff96e3d">   53</a></span>&#160;__kernel <span class="keywordtype">void</span> <a class="code" href="harris__corners_8cl.xhtml#a2cf3b8c23c9f8f383d81d13bfff96e3d">harris_score_3x3</a>(</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(src_gx),</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(src_gy),</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(vc),</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    <span class="keywordtype">float</span> sensitivity,</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    <span class="keywordtype">float</span> strength_thresh,</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;    <span class="keywordtype">float</span> pow4_normalization_factor)</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;{</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> src_gx = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src_gx);</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> src_gy = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src_gy);</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> vc     = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(vc);</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    <span class="comment">/* Gx^2, Gy^2 and Gx*Gy */</span></div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;    float4 gx2  = (float4)0.0f;</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;    float4 gy2  = (float4)0.0f;</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    float4 gxgy = (float4)0.0f;</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    <span class="comment">/* Row0 */</span></div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 8)</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    temp_gx = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src_gx, -1, -1));</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 8)</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    temp_gy = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src_gy, -1, -1));</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    float4 l_gx = convert_float4(temp_gx.s0123);</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    float4 m_gx = convert_float4(temp_gx.s1234);</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    float4 r_gx = convert_float4(temp_gx.s2345);</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    float4 l_gy = convert_float4(temp_gy.s0123);</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;    float4 m_gy = convert_float4(temp_gy.s1234);</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;    float4 r_gy = convert_float4(temp_gy.s2345);</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    gx2 += (l_gx * l_gx) + (m_gx * m_gx) + (r_gx * r_gx);</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;    gy2 += (l_gy * l_gy) + (m_gy * m_gy) + (r_gy * r_gy);</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    gxgy += (l_gx * l_gy) + (m_gx * m_gy) + (r_gx * r_gy);</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    <span class="comment">/* Row1 */</span></div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    temp_gx = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src_gx, -1, 0));</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    temp_gy = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src_gy, -1, 0));</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    l_gx = convert_float4(temp_gx.s0123);</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    m_gx = convert_float4(temp_gx.s1234);</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    r_gx = convert_float4(temp_gx.s2345);</div><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;    l_gy = convert_float4(temp_gy.s0123);</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;    m_gy = convert_float4(temp_gy.s1234);</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;    r_gy = convert_float4(temp_gy.s2345);</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    gx2 += (l_gx * l_gx) + (m_gx * m_gx) + (r_gx * r_gx);</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;    gy2 += (l_gy * l_gy) + (m_gy * m_gy) + (r_gy * r_gy);</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;    gxgy += (l_gx * l_gy) + (m_gx * m_gy) + (r_gx * r_gy);</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;    <span class="comment">/* Row2 */</span></div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;    temp_gx = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src_gx, -1, 1));</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    temp_gy = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&amp;src_gy, -1, 1));</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    l_gx = convert_float4(temp_gx.s0123);</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;    m_gx = convert_float4(temp_gx.s1234);</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;    r_gx = convert_float4(temp_gx.s2345);</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;    l_gy = convert_float4(temp_gy.s0123);</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;    m_gy = convert_float4(temp_gy.s1234);</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;    r_gy = convert_float4(temp_gy.s2345);</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;    gx2 += (l_gx * l_gx) + (m_gx * m_gx) + (r_gx * r_gx);</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;    gy2 += (l_gy * l_gy) + (m_gy * m_gy) + (r_gy * r_gy);</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;    gxgy += (l_gx * l_gy) + (m_gx * m_gy) + (r_gx * r_gy);</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;    <span class="comment">/* Compute trace and determinant */</span></div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;    float4 trace = gx2 + gy2;</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;    float4 det   = gx2 * gy2 - (gxgy * gxgy);</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;    <span class="comment">/* Compute harris score */</span></div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;    float4 mc = (det - (sensitivity * (trace * trace))) * pow4_normalization_factor;</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;    mc = select(0.0f, mc, mc &gt; (float4)strength_thresh);</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;    vstore4(mc, 0, (__global <span class="keywordtype">float</span> *)vc.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;}</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;</div><div class="line"><a name="l00138"></a><span class="lineno"><a class="line" href="harris__corners_8cl.xhtml#a71d10f5d9e840b6d270620a2cd856926">  138</a></span>&#160;<span class="keyword">inline</span> float16 <a class="code" href="harris__corners_8cl.xhtml#a71d10f5d9e840b6d270620a2cd856926">harris_score_1x5</a>(<a class="code" href="struct_image.xhtml">Image</a> *src_gx, <a class="code" href="struct_image.xhtml">Image</a> *src_gy, <span class="keywordtype">int</span> row)</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;{</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;    float4 gx2  = 0.0f;</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;    float4 gy2  = 0.0f;</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;    float4 gxgy = 0.0f;</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;    <span class="comment">/* Row */</span></div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 8)</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;    temp_gx = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(src_gx, -2, row));</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 8)</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    temp_gy = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(src_gy, -2, row));</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;    float4 gx = convert_float4(temp_gx.s0123);</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;    float4 gy = convert_float4(temp_gy.s0123);</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;    gx2 += (gx * gx);</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;    gy2 += (gy * gy);</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;    gxgy += (gx * gy);</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;    gx = convert_float4(temp_gx.s1234);</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;    gy = convert_float4(temp_gy.s1234);</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;    gx2 += (gx * gx);</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;    gy2 += (gy * gy);</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;    gxgy += (gx * gy);</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;    gx = convert_float4(temp_gx.s2345);</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    gy = convert_float4(temp_gy.s2345);</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;    gx2 += (gx * gx);</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;    gy2 += (gy * gy);</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;    gxgy += (gx * gy);</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;    gx = convert_float4(temp_gx.s3456);</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;    gy = convert_float4(temp_gy.s3456);</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;    gx2 += (gx * gx);</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;    gy2 += (gy * gy);</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;    gxgy += (gx * gy);</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;    gx = convert_float4(temp_gx.s4567);</div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;    gy = convert_float4(temp_gy.s4567);</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;    gx2 += (gx * gx);</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;    gy2 += (gy * gy);</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;    gxgy += (gx * gy);</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;    <span class="keywordflow">return</span> (float16)(gx2, gy2, gxgy, (float4)0);</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;}</div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;</div><div class="line"><a name="l00210"></a><span class="lineno"><a class="line" href="harris__corners_8cl.xhtml#a0f0af2add0a40f2f4b8a14f409186a02">  210</a></span>&#160;__kernel <span class="keywordtype">void</span> <a class="code" href="harris__corners_8cl.xhtml#a0f0af2add0a40f2f4b8a14f409186a02">harris_score_5x5</a>(</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(src_gx),</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(src_gy),</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(vc),</div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;    <span class="keywordtype">float</span> sensitivity,</div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;    <span class="keywordtype">float</span> strength_thresh,</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;    <span class="keywordtype">float</span> pow4_normalization_factor)</div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;{</div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> src_gx = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src_gx);</div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> src_gy = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src_gy);</div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> vc     = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(vc);</div><div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;</div><div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;    <span class="comment">/* Gx^2, Gy^2 and Gx*Gy */</span></div><div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;    float16 res = (float16)0.0f;</div><div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;</div><div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;    <span class="comment">/* Compute row */</span></div><div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;    <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = -2; i &lt; 3; i++)</div><div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;    {</div><div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;        res += <a class="code" href="harris__corners_8cl.xhtml#a71d10f5d9e840b6d270620a2cd856926">harris_score_1x5</a>(&amp;src_gx, &amp;src_gy, i);</div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;    }</div><div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;</div><div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;    float4 gx2  = res.s0123;</div><div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;    float4 gy2  = res.s4567;</div><div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;    float4 gxgy = res.s89AB;</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;    <span class="comment">/* Compute trace and determinant */</span></div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;    float4 trace = gx2 + gy2;</div><div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;    float4 det   = gx2 * gy2 - (gxgy * gxgy);</div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;</div><div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;    <span class="comment">/* Compute harris score */</span></div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;    float4 mc = (det - (sensitivity * (trace * trace))) * pow4_normalization_factor;</div><div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;</div><div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;    mc = select(0.0f, mc, mc &gt; (float4)strength_thresh);</div><div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;</div><div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;    vstore4(mc, 0, (__global <span class="keywordtype">float</span> *)vc.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;}</div><div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;</div><div class="line"><a name="l00253"></a><span class="lineno"><a class="line" href="harris__corners_8cl.xhtml#a2fadfd6378605824bb7926e1ac0123fb">  253</a></span>&#160;<span class="keyword">inline</span> float16 <a class="code" href="harris__corners_8cl.xhtml#a2fadfd6378605824bb7926e1ac0123fb">harris_score_1x7</a>(<a class="code" href="struct_image.xhtml">Image</a> *src_gx, <a class="code" href="struct_image.xhtml">Image</a> *src_gy, <span class="keywordtype">int</span> row)</div><div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;{</div><div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;    float4 gx2  = 0.0f;</div><div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;    float4 gy2  = 0.0f;</div><div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;    float4 gxgy = 0.0f;</div><div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;</div><div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;    <span class="comment">/* Row */</span></div><div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;    <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 8)</div><div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;    temp_gx0 = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(src_gx, -3, row));</div><div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;    <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 8)</div><div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;    temp_gy0 = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(src_gy, -3, row));</div><div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;    <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 2)</div><div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;    temp_gx1 = vload2(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(src_gx, 5, row));</div><div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;    <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 2)</div><div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;    temp_gy1 = vload2(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(src_gy, 5, row));</div><div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;</div><div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;    float4 gx = convert_float4(temp_gx0.s0123);</div><div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;    float4 gy = convert_float4(temp_gy0.s0123);</div><div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;    gx2 += (gx * gx);</div><div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;    gy2 += (gy * gy);</div><div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;    gxgy += (gx * gy);</div><div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;</div><div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;    gx = convert_float4(temp_gx0.s1234);</div><div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;    gy = convert_float4(temp_gy0.s1234);</div><div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;    gx2 += (gx * gx);</div><div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;    gy2 += (gy * gy);</div><div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;    gxgy += (gx * gy);</div><div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;</div><div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;    gx = convert_float4(temp_gx0.s2345);</div><div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;    gy = convert_float4(temp_gy0.s2345);</div><div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;    gx2 += (gx * gx);</div><div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;    gy2 += (gy * gy);</div><div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;    gxgy += (gx * gy);</div><div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;</div><div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;    gx = convert_float4(temp_gx0.s3456);</div><div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;    gy = convert_float4(temp_gy0.s3456);</div><div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;    gx2 += (gx * gx);</div><div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;    gy2 += (gy * gy);</div><div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;    gxgy += (gx * gy);</div><div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;</div><div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;    gx = convert_float4(temp_gx0.s4567);</div><div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;    gy = convert_float4(temp_gy0.s4567);</div><div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;    gx2 += (gx * gx);</div><div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;    gy2 += (gy * gy);</div><div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;    gxgy += (gx * gy);</div><div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;</div><div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;    gx = convert_float4((<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))(temp_gx0.s567, temp_gx1.s0));</div><div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;    gy = convert_float4((<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))(temp_gy0.s567, temp_gy1.s0));</div><div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;    gx2 += (gx * gx);</div><div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;    gy2 += (gy * gy);</div><div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;    gxgy += (gx * gy);</div><div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;</div><div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;    gx = convert_float4((<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))(temp_gx0.s67, temp_gx1.s01));</div><div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;    gy = convert_float4((<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))(temp_gy0.s67, temp_gy1.s01));</div><div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;    gx2 += (gx * gx);</div><div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;    gy2 += (gy * gy);</div><div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;    gxgy += (gx * gy);</div><div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;</div><div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;    <span class="keywordflow">return</span> (float16)(gx2, gy2, gxgy, (float4)0);</div><div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;}</div><div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;</div><div class="line"><a name="l00341"></a><span class="lineno"><a class="line" href="harris__corners_8cl.xhtml#a468ac2728816485f017f51faeb0a7d65">  341</a></span>&#160;__kernel <span class="keywordtype">void</span> <a class="code" href="harris__corners_8cl.xhtml#a468ac2728816485f017f51faeb0a7d65">harris_score_7x7</a>(</div><div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(src_gx),</div><div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(src_gy),</div><div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;    <a class="code" href="helpers_8h.xhtml#a22f42fcf2077d951271df83b55c1a71a">IMAGE_DECLARATION</a>(vc),</div><div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;    <span class="keywordtype">float</span> sensitivity,</div><div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;    <span class="keywordtype">float</span> strength_thresh,</div><div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;    <span class="keywordtype">float</span> pow4_normalization_factor)</div><div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;{</div><div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> src_gx = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src_gx);</div><div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> src_gy = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src_gy);</div><div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;    <a class="code" href="struct_image.xhtml">Image</a> vc     = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(vc);</div><div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;</div><div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;    <span class="comment">/* Gx^2, Gy^2 and Gx*Gy */</span></div><div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;    float16 res = (float16)0.0f;</div><div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;</div><div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;    <span class="comment">/* Compute row */</span></div><div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;    <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = -3; i &lt; 4; i++)</div><div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;    {</div><div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;        res += <a class="code" href="harris__corners_8cl.xhtml#a2fadfd6378605824bb7926e1ac0123fb">harris_score_1x7</a>(&amp;src_gx, &amp;src_gy, i);</div><div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;    }</div><div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;</div><div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;    float4 gx2  = res.s0123;</div><div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;    float4 gy2  = res.s4567;</div><div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;    float4 gxgy = res.s89AB;</div><div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;</div><div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;    <span class="comment">/* Compute trace and determinant */</span></div><div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;    float4 trace = gx2 + gy2;</div><div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;    float4 det   = gx2 * gy2 - (gxgy * gxgy);</div><div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;</div><div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;    <span class="comment">/* Compute harris score */</span></div><div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;    float4 mc = (det - (sensitivity * (trace * trace))) * pow4_normalization_factor;</div><div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;</div><div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;    mc = select(0.0f, mc, mc &gt; (float4)strength_thresh);</div><div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;</div><div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;    vstore4(mc, 0, (__global <span class="keywordtype">float</span> *)vc.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00376"></a><span class="lineno">  376</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>
 121 <div class="ttc" id="harris__corners_8cl_xhtml_a468ac2728816485f017f51faeb0a7d65"><div class="ttname"><a href="harris__corners_8cl.xhtml#a468ac2728816485f017f51faeb0a7d65">harris_score_7x7</a></div><div class="ttdeci">__kernel void harris_score_7x7(__global uchar *src_gx_ptr, uint src_gx_stride_x, uint src_gx_step_x, uint src_gx_stride_y, uint src_gx_step_y, uint src_gx_offset_first_element_in_bytes, __global uchar *src_gy_ptr, uint src_gy_stride_x, uint src_gy_step_x, uint src_gy_stride_y, uint src_gy_step_y, uint src_gy_offset_first_element_in_bytes, __global uchar *vc_ptr, uint vc_stride_x, uint vc_step_x, uint vc_stride_y, uint vc_step_y, uint vc_offset_first_element_in_bytes, float sensitivity, float strength_thresh, float pow4_normalization_factor)</div><div class="ttdoc">Function running harris score on 7x7 block size. </div><div class="ttdef"><b>Definition:</b> <a href="harris__corners_8cl_source.xhtml#l00341">harris_corners.cl:341</a></div></div>
 122 <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#l00068">helpers.h:68</a></div></div>
 123 <div class="ttc" id="harris__corners_8cl_xhtml_a71d10f5d9e840b6d270620a2cd856926"><div class="ttname"><a href="harris__corners_8cl.xhtml#a71d10f5d9e840b6d270620a2cd856926">harris_score_1x5</a></div><div class="ttdeci">float16 harris_score_1x5(Image *src_gx, Image *src_gy, int row)</div><div class="ttdoc">Function for calculating harris score 1x5. </div><div class="ttdef"><b>Definition:</b> <a href="harris__corners_8cl_source.xhtml#l00138">harris_corners.cl:138</a></div></div>
 124 <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>
 125 <div class="ttc" id="helpers_8h_xhtml"><div class="ttname"><a href="helpers_8h.xhtml">helpers.h</a></div></div>
 126 <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#l00104">helpers.h:104</a></div></div>
 127 <div class="ttc" id="harris__corners_8cl_xhtml_a2cf3b8c23c9f8f383d81d13bfff96e3d"><div class="ttname"><a href="harris__corners_8cl.xhtml#a2cf3b8c23c9f8f383d81d13bfff96e3d">harris_score_3x3</a></div><div class="ttdeci">__kernel void harris_score_3x3(__global uchar *src_gx_ptr, uint src_gx_stride_x, uint src_gx_step_x, uint src_gx_stride_y, uint src_gx_step_y, uint src_gx_offset_first_element_in_bytes, __global uchar *src_gy_ptr, uint src_gy_stride_x, uint src_gy_step_x, uint src_gy_stride_y, uint src_gy_step_y, uint src_gy_offset_first_element_in_bytes, __global uchar *vc_ptr, uint vc_stride_x, uint vc_step_x, uint vc_stride_y, uint vc_step_y, uint vc_offset_first_element_in_bytes, float sensitivity, float strength_thresh, float pow4_normalization_factor)</div><div class="ttdoc">Function running harris score on 3x3 block size. </div><div class="ttdef"><b>Definition:</b> <a href="harris__corners_8cl_source.xhtml#l00053">harris_corners.cl:53</a></div></div>
 128 <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#l00142">helpers.h:142</a></div></div>
 129 <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#l00144">helpers.h:144</a></div></div>
 130 <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>
 131 <div class="ttc" id="harris__corners_8cl_xhtml_a0f0af2add0a40f2f4b8a14f409186a02"><div class="ttname"><a href="harris__corners_8cl.xhtml#a0f0af2add0a40f2f4b8a14f409186a02">harris_score_5x5</a></div><div class="ttdeci">__kernel void harris_score_5x5(__global uchar *src_gx_ptr, uint src_gx_stride_x, uint src_gx_step_x, uint src_gx_stride_y, uint src_gx_step_y, uint src_gx_offset_first_element_in_bytes, __global uchar *src_gy_ptr, uint src_gy_stride_x, uint src_gy_step_x, uint src_gy_stride_y, uint src_gy_step_y, uint src_gy_offset_first_element_in_bytes, __global uchar *vc_ptr, uint vc_stride_x, uint vc_step_x, uint vc_stride_y, uint vc_step_y, uint vc_offset_first_element_in_bytes, float sensitivity, float strength_thresh, float pow4_normalization_factor)</div><div class="ttdoc">Function running harris score on 5x5 block size. </div><div class="ttdef"><b>Definition:</b> <a href="harris__corners_8cl_source.xhtml#l00210">harris_corners.cl:210</a></div></div>
 132 <div class="ttc" id="harris__corners_8cl_xhtml_a2fadfd6378605824bb7926e1ac0123fb"><div class="ttname"><a href="harris__corners_8cl.xhtml#a2fadfd6378605824bb7926e1ac0123fb">harris_score_1x7</a></div><div class="ttdeci">float16 harris_score_1x7(Image *src_gx, Image *src_gy, int row)</div><div class="ttdoc">Function for calculating harris score 1x7. </div><div class="ttdef"><b>Definition:</b> <a href="harris__corners_8cl_source.xhtml#l00253">harris_corners.cl:253</a></div></div>
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