dom/canvas/test/webgl-mochitest/test_canvas_size.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <head>
   4   <meta charset='UTF-8'>
   5   <script src='/tests/SimpleTest/SimpleTest.js'></script>
   6   <link rel='stylesheet' href='/tests/SimpleTest/test.css'>
   7 </head>
   8 <title>WebGL test: Framebuffer maximum size test. (Bug 1290333)</title>
   9 <body>
  10 <script>
  11 function TestSize(contextName, testSize) {
  12   var attributes = {
  13     antialias: false,
  14   };
  15
  16   var canvas = document.createElement('canvas');
  17   var gl = canvas.getContext(contextName, attributes);
  18
  19   if (!gl) {
  20     todo(false, contextName + 'is unavailable.');
  21     return;
  22   }
  23   gl.canvas.width = testSize;
  24   gl.canvas.height = testSize;
  25
  26   ok(true, contextName + 'test complete.');
  27 }
  28
  29 function run() {
  30   TestSize('webgl', 16384);
  31   TestSize('webgl2', 16384);
  32
  33   ok(true, 'Test complete.');
  34   SimpleTest.finish();
  35 }
  36
  37 ////////////////////////////////////////
  38
  39 SimpleTest.waitForExplicitFinish();
  40
  41 try {
  42   var prefPairList = [
  43     ['webgl.force-enabled', true],
  44   ];
  45   var prefEnv = {'set': prefPairList};
  46   SpecialPowers.pushPrefEnv(prefEnv, run);
  47 } catch (e) {
  48   warning('No SpecialPowers, but trying WebGL2 anyway...');
  49   run();
  50 }
  51
  52 </script>
  53 </body>
  54 </html>