The Tor Browser: content/canvas/test/reftest/webgl-hanging-fb-test.html@6474c204b198 (annotated)

content/canvas/test/reftest/webgl-hanging-fb-test.html@6474c204b198 (annotated)

Wed, 31 Dec 2014 06:09:35 +0100

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 <!DOCTYPE html>
 <html class="reftest-wait">
 <head>
 <meta charset="UTF-8">
 <script type="text/javascript" src="webgl-utils.js"></script>
 <script type="text/javascript">
 /* Hanging Framebuffer Test
  *
  * Clear the canvas to green, but create and bind a new framebuffer
  * before returning. This will fail if we blindly read from the bound
  * framebuffer, instead of binding to the screen and reading from that.
  *
  * How failure looks isn't well defined, since this is an empty framebuffer,
  * thus is incomplete, and should cause errors if it's read from.
  */
 "use strict";
 function renderGL(gl) {
   gl.clearColor(0.0, 1.0, 0.0, 1.0);
   gl.clear(gl.COLOR_BUFFER_BIT);
   var fb = gl.createFramebuffer();
   gl.bindFramebuffer(gl.FRAMEBUFFER, fb);
   gl.finish();
 }
 function renderFailure(canvas) {
   // This will also trigger RAF for us.
   var context = canvas.getContext("2d");
   context.fillText('WebGL failed.', 64, 64);
 }
 function runTest() {
   var canvas = document.getElementById("canvas");
   var gl = initGL(canvas);
   if (gl)
     renderGL(gl);
   else
     renderFailure(canvas);
   waitForComposite(testComplete);
 }
 function testComplete() {
   document.documentElement.removeAttribute("class");
 }
 </script>
 </head>
 <body onload="rAF(runTest);">
   <canvas id="canvas" width="256" height="256"></canvas>
 </body>
 </html>