  
          r_in_sum -= pr
          g_in_sum -= pg
          b_in_sum -= pb
          
          stackOut = stackOut.next
          
          yi += width
          
      radius *= increaseFactor

      i = wh
      <span class="keyword">while</span> --i &gt; -<span class="number">1</span>
        idx = i &lt;&lt; <span class="number">2</span>
        lookupValue = (radiusPixels[idx + <span class="number">2</span>] &amp; <span class="number">0xff</span>) / <span class="number">255.0</span> * blurLevels
 