</span>
      <span class="keyword">continue</span> <span class="keyword">if</span> iradius <span class="keyword">is</span> <span class="number">0</span>
      iradius = <span class="number">256</span> <span class="keyword">if</span> iradius &gt; <span class="number">256</span>

      div = iradius + iradius + <span class="number">1</span>
      w4 = width &lt;&lt; <span class="number">2</span>
      widthMinus1 = width - <span class="number">1</span>
      heightMinus1 = height - <span class="number">1</sp