dom/canvas/test/chrome/test_webgl_debug_renderer_info.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <!--
   4 https://bugzilla.mozilla.org/show_bug.cgi?id=666446
   5 -->
   6 <head>
   7   <title>Test that WEBGL_debug_renderer_info works in chrome code</title>
   8   <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
   9   <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css" />
  10 </head>
  11 <body>
  12
  13 <script>
  14
  15 const UNMASKED_VENDOR_WEBGL = 0x9245;
  16 const UNMASKED_RENDERER_WEBGL = 0x9246;
  17
  18 function isNonEmptyString(s) {
  19   return s && (typeof s) == "string";
  20 }
  21
  22 var canvas = document.createElement("canvas");
  23 var gl = canvas.getContext("experimental-webgl");
  24 ok(!gl.getError(), "getError on newly created WebGL context should return NO_ERROR");
  25
  26 ok(!gl.getParameter(UNMASKED_VENDOR_WEBGL) && gl.getError() == gl.INVALID_ENUM,
  27    "Should not be able to query UNMASKED_VENDOR_WEBGL without having enabled the WEBGL_debug_renderer_info extension");
  28 ok(!gl.getParameter(UNMASKED_RENDERER_WEBGL) && gl.getError() == gl.INVALID_ENUM,
  29    "Should not be able to query UNMASKED_RENDERER_WEBGL without having enabled the WEBGL_debug_renderer_info extension");
  30
  31 var exts = gl.getSupportedExtensions();
  32 ok(exts.includes("WEBGL_debug_renderer_info"),
  33    "WEBGL_debug_renderer_info should be listed by getSupportedExtensions in chrome contexts");
  34 var ext = gl.getExtension("WEBGL_debug_renderer_info");
  35 ok(ext,
  36    "WEBGL_debug_renderer_info should be available through getExtension in chrome contexts");
  37
  38 ok(ext.UNMASKED_VENDOR_WEBGL == UNMASKED_VENDOR_WEBGL,
  39    "UNMASKED_VENDOR_WEBGL has the correct value");
  40 ok(ext.UNMASKED_RENDERER_WEBGL == UNMASKED_RENDERER_WEBGL,
  41    "UNMASKED_RENDERER_WEBGL has the correct value");
  42
  43 ok(isNonEmptyString(gl.getParameter(UNMASKED_VENDOR_WEBGL)) && gl.getError() == gl.NO_ERROR,
  44    "Should be able to query UNMASKED_VENDOR_WEBGL in chrome context with WEBGL_debug_renderer_info enabled");
  45 ok(isNonEmptyString(gl.getParameter(UNMASKED_RENDERER_WEBGL)) && gl.getError() == gl.NO_ERROR,
  46    "Should be able to query UNMASKED_RENDERER_WEBGL in chrome context with WEBGL_debug_renderer_info enabled");
  47
  48 </script>
  49 </body>
  50 </html>