="keyword">for</span> i <span class="keyword">in</span> [<span class="number">1.</span>..div]
      stack = stack.next = <span class="keyword">new</span> BlurStack()
      stackEnd = stack <span class="keyword">if</span> i <span class="keyword">is</span> radiusPlus1
      
    stack.next = stackStart
    stackIn = <span class="literal">null</span>
    stackOut = <span class="literal">null</span>

    yw = yi = <span class="number">0</span>

    mul_sum = mul_table[radius]
    shg_sum = shg_table[radius]

  