<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/
-->
<svg xmlns='http://www.w3.org/2000/svg'>
  <!--
    A basic test for the <feSpecularLighting> filter primitive.
    Setting kernelUnitLength on the <feSpecularLighting> should allow us to
    assume pixel perfection.
    -->
  <filter id='f' x='0' y='0' width='1' height='1' color-interpolation-filters='sRGB'>
    <feSpecularLighting kernelUnitLength='1' result='a'>
      <feDistantLight azimuth='45'/>
    </feSpecularLighting>
    <feComposite in='a' in2='SourceAlpha' operator='in' result='b'/>
    <feComposite in='SourceGraphic' in2='b' operator='arithmetic' k1='0' k2='1' k3='1' k4='0' x='10' y='10' width='80' height='80'/>
  </filter>
  <rect width='100' height='100' fill='blue'/>
  <path d='M0,0 h100 v100 h-100 z M20,20 v60 h60 v-60 z' filter='url(#f)'/>

  <!-- Cover two spots in the test whose rendering differs in opt builds
       vs. debug builds (see Bug 610945). -->
  <rect x='78' y='18' width='4' height='4'/>
  <rect x='18' y='78' width='4' height='4'/>
</svg>