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compute.html
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<body class="cython">
<p><span style="border-bottom: solid 1px grey;">Generated by Cython 0.29</span></p>
<p>
<span style="background-color: #FFFF00">Yellow lines</span> hint at Python interaction.<br />
Click on a line that starts with a "<code>+</code>" to see the C code that Cython generated for it.
</p>
<p>Raw output: <a href="compute.c">compute.c</a></p>
<div class="cython"><pre class="cython line score-8" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">01</span>: # cython: language_level=3</pre>
<pre class='cython code score-8 '> __pyx_t_1 = <span class='pyx_c_api'>__Pyx_PyDict_NewPresized</span>(0);<span class='error_goto'> if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 1, __pyx_L1_error)</span>
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</pre><pre class="cython line score-0"> <span class="">02</span>: # cython: infer_types=True</pre>
<pre class="cython line score-0"> <span class="">03</span>: cimport cython</pre>
<pre class="cython line score-0"> <span class="">04</span>: </pre>
<pre class="cython line score-0"> <span class="">05</span>: @cython.boundscheck(False)</pre>
<pre class="cython line score-0"> <span class="">06</span>: @cython.wraparound(False)</pre>
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Py_ssize_t __pyx_v_kernel_width;
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</pre><pre class="cython line score-0"> <span class="">08</span>: cdef ssize_t image_height, image_width, channel_count</pre>
<pre class="cython line score-0"> <span class="">09</span>: cdef ssize_t kernel_height, kernel_width, kernel_halfh, kernel_halfw</pre>
<pre class="cython line score-0"> <span class="">10</span>: cdef ssize_t x_min, x_max, y_min, y_max, x, y, u, v, c</pre>
<pre class="cython line score-0"> <span class="">11</span>: </pre>
<pre class="cython line score-0"> <span class="">12</span>: cdef float value, tmp, total</pre>
<pre class="cython line score-0"> <span class="">13</span>: </pre>
<pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">14</span>: channel_count = image.shape[0]</pre>
<pre class='cython code score-0 '> __pyx_v_channel_count = (__pyx_v_image.shape[0]);
</pre><pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">15</span>: image_height = image.shape[1]</pre>
<pre class='cython code score-0 '> __pyx_v_image_height = (__pyx_v_image.shape[1]);
</pre><pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">16</span>: image_width = image.shape[2]</pre>
<pre class='cython code score-0 '> __pyx_v_image_width = (__pyx_v_image.shape[2]);
</pre><pre class="cython line score-0"> <span class="">17</span>: </pre>
<pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">18</span>: kernel_height = kernel.shape[0]</pre>
<pre class='cython code score-0 '> __pyx_v_kernel_height = (__pyx_v_kernel.shape[0]);
</pre><pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">19</span>: kernel_halfh = kernel_height // 2</pre>
<pre class='cython code score-0 '> __pyx_v_kernel_halfh = __Pyx_div_Py_ssize_t(__pyx_v_kernel_height, 2);
</pre><pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">20</span>: kernel_width = kernel.shape[1]</pre>
<pre class='cython code score-0 '> __pyx_v_kernel_width = (__pyx_v_kernel.shape[1]);
</pre><pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">21</span>: kernel_halfw = kernel_width // 2</pre>
<pre class='cython code score-0 '> __pyx_v_kernel_halfw = __Pyx_div_Py_ssize_t(__pyx_v_kernel_width, 2);
</pre><pre class="cython line score-0"> <span class="">22</span>: </pre>
<pre class="cython line score-0"> <span class="">23</span>: # Do convolution</pre>
<pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">24</span>: for x in range(image_width):</pre>
<pre class='cython code score-0 '> __pyx_t_1 = __pyx_v_image_width;
__pyx_t_2 = __pyx_t_1;
for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
__pyx_v_x = __pyx_t_3;
</pre><pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">25</span>: for y in range(image_height):</pre>
<pre class='cython code score-0 '> __pyx_t_4 = __pyx_v_image_height;
__pyx_t_5 = __pyx_t_4;
for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
__pyx_v_y = __pyx_t_6;
</pre><pre class="cython line score-0"> <span class="">26</span>: # Calculate usable image / kernel range</pre>
<pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">27</span>: x_min = max(0, x - kernel_halfw)</pre>
<pre class='cython code score-0 '> __pyx_t_7 = (__pyx_v_x - __pyx_v_kernel_halfw);
__pyx_t_8 = 0;
if (((__pyx_t_7 > __pyx_t_8) != 0)) {
__pyx_t_9 = __pyx_t_7;
} else {
__pyx_t_9 = __pyx_t_8;
}
__pyx_v_x_min = __pyx_t_9;
</pre><pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">28</span>: x_max = min(image_width - 1, x + kernel_halfw)</pre>
<pre class='cython code score-0 '> __pyx_t_9 = (__pyx_v_x + __pyx_v_kernel_halfw);
__pyx_t_7 = (__pyx_v_image_width - 1);
if (((__pyx_t_9 < __pyx_t_7) != 0)) {
__pyx_t_10 = __pyx_t_9;
} else {
__pyx_t_10 = __pyx_t_7;
}
__pyx_v_x_max = __pyx_t_10;
</pre><pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">29</span>: y_min = max(0, y - kernel_halfh)</pre>
<pre class='cython code score-0 '> __pyx_t_10 = (__pyx_v_y - __pyx_v_kernel_halfh);
__pyx_t_8 = 0;
if (((__pyx_t_10 > __pyx_t_8) != 0)) {
__pyx_t_9 = __pyx_t_10;
} else {
__pyx_t_9 = __pyx_t_8;
}
__pyx_v_y_min = __pyx_t_9;
</pre><pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">30</span>: y_max = min(image_height - 1, y + kernel_halfh)</pre>
<pre class='cython code score-0 '> __pyx_t_9 = (__pyx_v_y + __pyx_v_kernel_halfh);
__pyx_t_10 = (__pyx_v_image_height - 1);
if (((__pyx_t_9 < __pyx_t_10) != 0)) {
__pyx_t_7 = __pyx_t_9;
} else {
__pyx_t_7 = __pyx_t_10;
}
__pyx_v_y_max = __pyx_t_7;
</pre><pre class="cython line score-0"> <span class="">31</span>: </pre>
<pre class="cython line score-0"> <span class="">32</span>: # Convolve filter</pre>
<pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">33</span>: for c in range(channel_count):</pre>
<pre class='cython code score-0 '> __pyx_t_7 = __pyx_v_channel_count;
__pyx_t_9 = __pyx_t_7;
for (__pyx_t_10 = 0; __pyx_t_10 < __pyx_t_9; __pyx_t_10+=1) {
__pyx_v_c = __pyx_t_10;
</pre><pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">34</span>: value = 0</pre>
<pre class='cython code score-0 '> __pyx_v_value = 0.0;
</pre><pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">35</span>: total = 0</pre>
<pre class='cython code score-0 '> __pyx_v_total = 0.0;
</pre><pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">36</span>: for u in range(x_min, x_max + 1):</pre>
<pre class='cython code score-0 '> __pyx_t_11 = (__pyx_v_x_max + 1);
__pyx_t_12 = __pyx_t_11;
for (__pyx_t_13 = __pyx_v_x_min; __pyx_t_13 < __pyx_t_12; __pyx_t_13+=1) {
__pyx_v_u = __pyx_t_13;
</pre><pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">37</span>: for v in range(y_min, y_max + 1):</pre>
<pre class='cython code score-0 '> __pyx_t_14 = (__pyx_v_y_max + 1);
__pyx_t_15 = __pyx_t_14;
for (__pyx_t_16 = __pyx_v_y_min; __pyx_t_16 < __pyx_t_15; __pyx_t_16+=1) {
__pyx_v_v = __pyx_t_16;
</pre><pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">38</span>: tmp = kernel[v - y + kernel_halfh, u - x + kernel_halfw]</pre>
<pre class='cython code score-0 '> __pyx_t_17 = ((__pyx_v_v - __pyx_v_y) + __pyx_v_kernel_halfh);
__pyx_t_18 = ((__pyx_v_u - __pyx_v_x) + __pyx_v_kernel_halfw);
__pyx_v_tmp = (*((float *) ( /* dim=1 */ ((char *) (((float *) ( /* dim=0 */ (__pyx_v_kernel.data + __pyx_t_17 * __pyx_v_kernel.strides[0]) )) + __pyx_t_18)) )));
</pre><pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">39</span>: value += image[c, v, u] * tmp</pre>
<pre class='cython code score-0 '> __pyx_t_19 = __pyx_v_c;
__pyx_t_20 = __pyx_v_v;
__pyx_t_21 = __pyx_v_u;
__pyx_v_value = (__pyx_v_value + ((*((float *) ( /* dim=2 */ ((char *) (((float *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_image.data + __pyx_t_19 * __pyx_v_image.strides[0]) ) + __pyx_t_20 * __pyx_v_image.strides[1]) )) + __pyx_t_21)) ))) * __pyx_v_tmp));
</pre><pre class="cython line score-0" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">40</span>: total += tmp</pre>
<pre class='cython code score-0 '> __pyx_v_total = (__pyx_v_total + __pyx_v_tmp);
}
}
</pre><pre class="cython line score-5" onclick="(function(s){s.display=s.display==='block'?'none':'block'})(this.nextElementSibling.style)">+<span class="">41</span>: output[c, y, x] = value / total</pre>
<pre class='cython code score-5 '> if (unlikely(__pyx_v_total == 0)) {
<span class='py_c_api'>PyErr_SetString</span>(PyExc_ZeroDivisionError, "float division");
<span class='error_goto'>__PYX_ERR(0, 41, __pyx_L1_error)</span>
}
__pyx_t_11 = __pyx_v_c;
__pyx_t_12 = __pyx_v_y;
__pyx_t_13 = __pyx_v_x;
*((float *) ( /* dim=2 */ ((char *) (((float *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_output.data + __pyx_t_11 * __pyx_v_output.strides[0]) ) + __pyx_t_12 * __pyx_v_output.strides[1]) )) + __pyx_t_13)) )) = (__pyx_v_value / __pyx_v_total);
}
}
}
</pre></div></body></html>