chrome/test/data/gpu/feature_multisampling.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <head>
   4 <meta charset="utf-8">
   5 <title>GPU Feature Testing: WebGL Multisampling</title>
   6 <script>
   7 function init() {
   8   var canvas = document.createElement("canvas");
   9   if (!canvas)
  10     return null;
  11   var context = null;
  12   var attrib = { antialias: true };  // It is the default setting.
  13   try {
  14     context = canvas.getContext("webgl", attrib);
  15   } catch(e) {}
  16   if (!context) {
  17     try {
  18       context = canvas.getContext("experimental-webgl", attrib);
  19     } catch(e) {}
  20   }
  21   return context;
  22 }
  23
  24 function runTest() {
  25   var gl = init();
  26   var attrib = null;
  27   if (gl)
  28     attrib = gl.getContextAttributes();
  29   domAutomationController.setAutomationId(1);
  30   if (gl && attrib && attrib.antialias)
  31     domAutomationController.send("TRUE");
  32   else
  33     domAutomationController.send("FALSE");
  34 }
  35 </script>
  36 </head>
  37 <body onload="runTest()">
  38 WebGL should use multisampling if it is allowed.
  39 </body>
  40 </html>