dom/canvas/test/webgl-conf/checkout/conformance2/textures/misc/generate-mipmap-with-large-base-level.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>Test if GenerateMipmap on immutable texture with large BASE_LEVEL triggers a crash</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 <canvas id="example" width="24" height="24"></canvas>
  18 <div id="description"></div>
  19 <div id="console"></div>
  20 <script>
  21 "use strict";
  22 description("This is a regression test for crbug.com/913301");
  23 debug("");
  24
  25 var wtu = WebGLTestUtils;
  26 var gl = wtu.create3DContext("example", null, 2);
  27 gl.clearColor(0, 1, 0, 1);
  28
  29 var targets = [gl.TEXTURE_2D, gl.TEXTURE_3D];
  30 for (var ii = 0; ii < targets.length; ++ii) {
  31   gl.clear(gl.COLOR_BUFFER_BIT);
  32   var target = targets[ii];
  33   var tex = gl.createTexture();
  34   gl.bindTexture(target, tex);
  35   gl.texParameteri(target, gl.TEXTURE_BASE_LEVEL, 1416354905);
  36   gl.texParameteri(target, gl.TEXTURE_MAX_LEVEL, 5);
  37   gl.texParameteri(target, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR);
  38   gl.texParameteri(target, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
  39   if (target == gl.TEXTURE_2D)
  40     gl.texStorage2D(target, 5, gl.R8, 32, 32);
  41   else
  42     gl.texStorage3D(target, 5, gl.R8, 32, 32, 32);
  43   // Should not crash calling generateMipmap.
  44   gl.generateMipmap(target);
  45   gl.deleteTexture(tex);
  46   // If crashed, readPixels() won't be able to work correctly.
  47   wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green", 5);
  48   wtu.glErrorShouldBe(gl, gl.NO_ERROR);
  49 }
  50
  51 var successfullyParsed = true;
  52 </script>
  53 <script src="../../../js/js-test-post.js"></script>
  54 </body>
  55 </html>
  56