third_party/WebKit/LayoutTests/fast/canvas/webgl/buffer-bind-test.html

   1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   2   "http://www.w3.org/TR/html4/loose.dtd">
   3 <html>
   4   <head>
   5     <title>WebGL BindBuffer conformance test.</title>
   6     <script src="../../../resources/js-test.js"></script>
   7     <script src="resources/webgl-test.js"> </script>
   8 </head>
   9 <body>
  10 <canvas id="example" width="40" height="40" style="width: 40px; height: 40px;"></canvas>
  11 <div id="description"></div>
  12 <div id="console"></div>
  13 <script>
  14 description("Checks a buffer can only be bound to 1 target.");
  15
  16 debug("");
  17 debug("Canvas.getContext");
  18
  19 if (window.internals)
  20     window.internals.settings.setWebGLErrorsToConsoleEnabled(false);
  21
  22 var gl = create3DContext(document.getElementById("canvas"));
  23 if (!gl) {
  24   testFailed("context does not exist");
  25 } else {
  26   testPassed("context exists");
  27
  28   debug("");
  29
  30   var buf = gl.createBuffer();
  31   gl.bindBuffer(gl.ARRAY_BUFFER, buf);
  32   assertMsg(gl.getError() == gl.NO_ERROR,
  33             "should be able to bind buffer.");
  34   gl.bindBuffer(gl.ARRAY_BUFFER, null);
  35   assertMsg(gl.getError() == gl.NO_ERROR,
  36             "should be able to unbind buffer.");
  37   gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, buf);
  38   assertMsg(gl.getError() == gl.INVALID_OPERATION,
  39             "should get INVALID_OPERATION if attempting to bind buffer to different target");
  40
  41   var buf = gl.createBuffer();
  42   gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, buf);
  43   assertMsg(gl.getError() == gl.NO_ERROR,
  44             "should be able to bind buffer.");
  45   gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null);
  46   assertMsg(gl.getError() == gl.NO_ERROR,
  47             "should be able to unbind buffer.");
  48   gl.bindBuffer(gl.ARRAY_BUFFER, buf);
  49   assertMsg(gl.getError() == gl.INVALID_OPERATION,
  50             "should get INVALID_OPERATION if attempting to bind buffer to different target");
  51 }
  52
  53 debug("");
  54 </script>
  55 </body>
  56
  57 <script>
  58 </script>
  59
  60 </body>
  61 </html>
  62