dom/canvas/test/webgl-conf/checkout/extra/texture-allocation-stress-test.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 <title>Tests that resources allocated by a WebGL context are freed in a reasonable timeframe.</title>
  12 <link rel="stylesheet" href="../resources/js-test-style.css"/>
  13 <script src="../js/js-test-pre.js"></script>
  14 <script src="../js/webgl-test-utils.js"> </script>
  15 </head>
  16 <body>
  17 <div id="description"></div>
  18 <div id="console"></div>
  19 <canvas id="canvas" width="32" height="32">
  20 </canvas>
  21 <script>
  22 "use strict";
  23 description();
  24
  25 debug("Creates a WebGL context and textures consuming ~80 MB of video memory, then reloads the page and does it over again.")
  26 debug("GPU memory usage should be capped. It should not grow unboundedly.")
  27
  28 var wtu = WebGLTestUtils;
  29
  30 var gl = wtu.create3DContext(document.getElementById("canvas"));
  31 var textures = [];
  32
  33 for (var ii = 0; ii < 20; ++ii) {
  34     var tex = gl.createTexture();
  35     gl.bindTexture(gl.TEXTURE_2D, tex);
  36     gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1024, 1024, 0, gl.RGBA, gl.UNSIGNED_BYTE,
  37                   null);
  38     textures.push(tex);
  39 }
  40
  41 setTimeout(function() { debug("Reloading..."); window.location.reload(); }, 500);
  42
  43 var successfullyParsed = true;
  44 </script>
  45
  46 </body>
  47 </html>