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/*
** Copyright (c) 2012 The Khronos Group Inc.
**
** Permission is hereby granted, free of charge, to any person obtaining a
** copy of this software and/or associated documentation files (the
** "Materials"), to deal in the Materials without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Materials, and to
** permit persons to whom the Materials are furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be included
** in all copies or substantial portions of the Materials.
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** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
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-->

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>WebGL Information</title>
<script src="../../demos/common/webgl-utils.js"> </script>
<script>
"use strict";
window.onload = main;

function createCell(txt) {
  var str = txt.toString();
  if (typeof txt != 'string') {
    if (txt.length !== undefined) {
      str = "";
      for (var ii = 0; ii < txt.length; ++ii) {
        str += (ii == 0 ? "" : ", ") + txt[ii];
      }
    }
  }
  var t = document.createTextNode(str);
  var d = document.createElement("div");
  var td = document.createElement("td");
  d.appendChild(t);
  td.appendChild(d);
  return td;
}

function main() {
  var canvas = document.getElementById("example");
  var gl = WebGLUtils.setupWebGL(canvas);
  if (!gl) {
    return;
  }

  var pnames = [
    'VERSION',
    'VENDOR',
    'RENDERER',
    'MAX_COMBINED_TEXTURE_IMAGE_UNITS',
    'MAX_CUBE_MAP_TEXTURE_SIZE',
    'MAX_FRAGMENT_UNIFORM_VECTORS',
    'MAX_RENDERBUFFER_SIZE',
    'MAX_TEXTURE_IMAGE_UNITS',
    'MAX_TEXTURE_SIZE',
    'MAX_VARYING_VECTORS',
    'MAX_VERTEX_ATTRIBS',
    'MAX_VERTEX_TEXTURE_IMAGE_UNITS',
    'MAX_VERTEX_UNIFORM_VECTORS',
    'MAX_VIEWPORT_DIMS'
  ];
  var table = document.createElement("table");
  var tb = document.createElement("tbody");
  for (var ii = 0; ii < pnames.length; ++ii) {
    var pname = pnames[ii];
    var value = gl.getParameter(gl[pname]);
    var tr = document.createElement("tr");
    var td1 = createCell(pname);
    var td2 = createCell(value);
    tr.appendChild(td1);
    tr.appendChild(td2);
    tb.appendChild(tr);
  }
  table.appendChild(tb);
  document.getElementById("info").appendChild(table);
}
</script>
</head>
<body>
<h1>WebGL Info</h1>
<div id="info"></div>
<canvas id="example" width="256" height="16" style="width: 256px; height: 48px;"></canvas>
</body>
</html>