third_party/WebKit/LayoutTests/fast/canvas/canvas-toDataURL-webp.html

   1 <canvas id="canvas" width="64px" height="64px" style="display: none"></canvas>
   2 <pre id="log"></pre>
   3 <img id="result">
   4 <script>
   5 if (window.testRunner) {
   6     window.testRunner.dumpAsTextWithPixelResults();
   7     window.testRunner.waitUntilDone();
   8 }
   9
  10 function webpDataURLTest()
  11 {
  12     var canvas = document.getElementById('canvas');
  13     var context = canvas.getContext('2d');
  14     context.drawImage(window.image, 0, 0, canvas.width, canvas.height);
  15
  16     var dataURL = canvas.toDataURL('image/webp', 0.8);
  17     if (!dataURL.match(/^data:image\/webp[;,]/))
  18         document.getElementById('log').textContent += "FAIL: canvas.toDataURL('image/webp') not supported";
  19     else
  20         document.getElementById('result').src = dataURL;
  21
  22     if (window.testRunner)
  23         window.testRunner.notifyDone();
  24 }
  25
  26 var image = new Image();
  27 image.onload = webpDataURLTest;
  28 image.src = 'resources/html5.png';
  29 </script>