content/test/data/gpu/gpu_process_crash.html

   1 <html>
   2 <head>
   3 <script type="text/javascript">
   4 function onLoad() {
   5   window.domAutomationController.reset = function() {
   6     window.domAutomationController._loaded = false;
   7     window.domAutomationController._succeeded = false;
   8     window.domAutomationController._finished = false;
   9     window.requestAnimationFrame(draw);
  10   };
  11   window.domAutomationController.send("LOADED");
  12 }
  13
  14 function draw() {
  15   // Render some WebGL into a fresh canvas to ensure the GPU process
  16   // was created.
  17   var canvas = document.createElement("canvas");
  18   canvas.width = 32;
  19   canvas.height = 32;
  20   gl = canvas.getContext("webgl");
  21   if (!gl) {
  22     console.log("Failed to fetch WebGL context");
  23     window.domAutomationController.send("FAILED");
  24     return;
  25   }
  26
  27   gl.clearColor(1, 0, 0, 1);
  28   gl.clear(gl.COLOR_BUFFER_BIT);
  29   var pixels = new Uint8Array(4);
  30   gl.readPixels(0, 0, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, pixels);
  31   var tolerance = 1;
  32   if (Math.abs(pixels[0] - 255) > tolerance ||
  33       Math.abs(pixels[1] - 0) > tolerance ||
  34       Math.abs(pixels[2] - 0) > tolerance ||
  35       Math.abs(pixels[3] - 255) > tolerance) {
  36     console.log("Expected (255, 0, 0, 255), got (" +
  37       pixels[0] + ", " +
  38       pixels[1] + ", " +
  39       pixels[2] + ", " +
  40       pixels[3] + ")");
  41     window.domAutomationController.send("FAILED");
  42     return;
  43   }
  44
  45   window.domAutomationController.send("SUCCESS");
  46 }
  47 </script>
  48 </head>
  49 <body onload="onLoad()">
  50 GPU process crash test running.
  51 </body>
  52 </html>