chrome/test/data/gpu/feature_webgl.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <head>
   4 <meta charset="utf-8">
   5 <title>GPU Feature Testing: WebGL</title>
   6 <script>
   7 var frameCount = 0;
   8 var gl = null;
   9
  10 function init() {
  11   var canvas = document.getElementById("da-canvas");
  12   if (!canvas)
  13     return;
  14   try {
  15     gl = canvas.getContext("webgl");
  16   } catch(e) {}
  17   if (!gl) {
  18     try {
  19       gl = canvas.getContext("experimental-webgl");
  20     } catch(e) {}
  21   }
  22 }
  23
  24 function runTest() {
  25   init();
  26   if (gl)
  27     window.webkitRequestAnimationFrame(draw);
  28   else
  29     endTest();
  30 }
  31
  32 function draw() {
  33   frameCount++;
  34   gl.viewport(0, 0, 10, 10);
  35   gl.clearColor(1.0/frameCount, 0.0, 0.0, 1.0);
  36   gl.clear(gl.COLOR_BUFFER_BIT);
  37   if (frameCount == 6) {
  38     endTest();
  39   } else {
  40     window.webkitRequestAnimationFrame(draw);
  41   }
  42 }
  43
  44 function endTest() {
  45   domAutomationController.setAutomationId(1);
  46   domAutomationController.send("FINISHED");
  47 }
  48 </script>
  49 </head>
  50 <body onload="runTest()">
  51 WebGL should trigger GPU process launch if it is allowed.
  52 <canvas id="da-canvas" width="10" height="10"></canvas>
  53 </body>
  54 </html>