dom/canvas/test/webgl-conf/checkout/conformance/glsl/bugs/invariant-does-not-leak-across-shaders.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>Invariant does not leak across shaders</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 <script src="../../../js/glsl-conformance-test.js"></script>
  16 </head>
  17 <body>
  18 <div id="description"></div>
  19 <div id="console"></div>
  20 <script id="InvariantVertex" type="x-shader/x-vertex">
  21 varying vec4 v_varying;
  22 invariant v_varying;
  23
  24 void main()
  25 {
  26     gl_Position = v_varying;
  27 }
  28 </script>
  29 <script id="InvariantFragment" type="x-shader/x-fragment">
  30 precision mediump float;
  31 invariant varying vec4 v_varying;
  32
  33 void main()
  34 {
  35     gl_FragColor = v_varying;
  36 }
  37 </script>
  38 <script id="VertexWithVarying" type="x-shader/x-vertex">
  39 varying vec4 v_varying;
  40
  41 void main() {
  42     gl_Position = v_varying;
  43 }
  44 </script>
  45 <script type="text/javascript">
  46 "use strict";
  47 description("The use of the invariant qualifier in one shader must not affect other shaders.");
  48
  49 debug("");
  50 debug("This is a deliberate subset of conformance/glsl/misc/shaders-with-invariance.html.");
  51 debug("Compared with the original tests, order of the tests is different.");
  52 debug("This test covers an ANGLE bug. See crbug.com/634813.");
  53
  54 GLSLConformanceTester.runTests([
  55   {
  56     vShaderId: "InvariantVertex",
  57     vShaderSuccess: true,
  58     fShaderId: "InvariantFragment",
  59     fShaderSuccess: true,
  60     linkSuccess: true,
  61     passMsg: "Shaders using invariant qualifier should compile and link."
  62   },
  63   {
  64     vShaderId: "VertexWithVarying",
  65     vShaderSuccess: true,
  66     fShaderId: "InvariantFragment",
  67     fShaderSuccess: true,
  68     linkSuccess: false,
  69     passMsg: "vertex shader with variant varying and fragment shader with invariant varying must fail"
  70   },
  71 ]);
  72 </script>
  73 </body>
  74 </html>