<!DOCTYPE HTML>
<html>
<head>
  <meta charset='UTF-8'>
  <script src='/tests/SimpleTest/SimpleTest.js'></script>
  <link rel='stylesheet' href='/tests/SimpleTest/test.css'>
</head>
<title>WebGL test: Framebuffer maximum size test. (Bug 1290333)</title>
<body>
<script>
function TestSize(contextName, testSize) {
  var attributes = {
    antialias: false,
  };

  var canvas = document.createElement('canvas');
  var gl = canvas.getContext(contextName, attributes);

  if (!gl) {
    todo(false, contextName + 'is unavailable.');
    return;
  }
  gl.canvas.width = testSize;
  gl.canvas.height = testSize;

  ok(true, contextName + 'test complete.');
}

function run() {
  TestSize('webgl', 16384);
  TestSize('webgl2', 16384);

  ok(true, 'Test complete.');
  SimpleTest.finish();
}

////////////////////////////////////////

SimpleTest.waitForExplicitFinish();

try {
  var prefPairList = [
    ['webgl.force-enabled', true],
  ];
  var prefEnv = {'set': prefPairList};
  SpecialPowers.pushPrefEnv(prefEnv, run);
} catch (e) {
  warning('No SpecialPowers, but trying WebGL2 anyway...');
  run();
}

</script>
</body>
</html>
