dom/canvas/test/webgl-conf/checkout/conformance/extensions/oes-texture-half-float-with-canvas.html

   1 <!--
   2 Copyright (c) 2019 The Khronos Group Inc.
   3 Use of this source code is governed by an MIT-style license that can be
   4 found in the LICENSE.txt file.
   5 -->
   6
   7 <!DOCTYPE html>
   8 <html>
   9 <head>
  10 <meta charset="utf-8">
  11 <link rel="stylesheet" href="../../resources/js-test-style.css"/>
  12 <script src="../../js/js-test-pre.js"></script>
  13 <script src="../../js/webgl-test-utils.js"></script>
  14 <script src="../../js/tests/tex-image-and-sub-image-utils.js"></script>
  15 <script src="../../js/tests/tex-image-and-sub-image-2d-with-canvas.js"></script>
  16 <script>
  17 "use strict";
  18 function testPrologue(gl) {
  19     var ext = null;
  20
  21     if (!(ext = gl.getExtension("OES_texture_half_float"))) {
  22         testPassed("No OES_texture_half_float support -- this is legal");
  23         return false;
  24     }
  25
  26     // Required by the test harness.
  27     gl.HALF_FLOAT_OES = ext.HALF_FLOAT_OES;
  28
  29     testPassed("Successfully enabled OES_texture_half_float extension");
  30     return true;
  31 }
  32 </script>
  33 </head>
  34 <body onload='generateTest("RGBA", "RGBA", "HALF_FLOAT_OES", testPrologue,  "../../resources/")()'>
  35 <canvas id="example" width="32" height="32"></canvas>
  36 <div id="description"></div>
  37 <div id="console"></div>
  38 </body>
  39 </html>