chrome/test/data/gpu/feature_canvas2d.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <head>
   4 <meta charset="utf-8">
   5 <title>GPU Feature Testing: Canvas2D</title>
   6 <script>
   7 var frameCount = 0;
   8 var context = null;
   9
  10 function init() {
  11   var canvas = document.getElementById("da-canvas");
  12   if (!canvas)
  13     return;
  14   try {
  15     context = canvas.getContext("2d");
  16   } catch(e) {}
  17 }
  18
  19 function runTest() {
  20   init();
  21   if (context)
  22     window.webkitRequestAnimationFrame(draw);
  23   else
  24     endTest();
  25 }
  26
  27 function draw() {
  28   frameCount++;
  29   context.fillRect(0, 0, 100, frameCount);
  30   if (frameCount == 6) {
  31     endTest();
  32   } else {
  33     window.webkitRequestAnimationFrame(draw);
  34   }
  35 }
  36
  37 function endTest() {
  38   domAutomationController.setAutomationId(1);
  39   domAutomationController.send("FINISHED");
  40 }
  41 </script>
  42 </head>
  43 <body onload="runTest()">
  44 Canvas2D should trigger GPU process launch if accelerated-2d-canvas is allowed.
  45 300x300 is enough to trigger accelerated canvas 2D.
  46 <canvas id="da-canvas" width="300" height="300"></canvas>
  47 </body>
  48 </html>