dom/canvas/test/webgl-conf/checkout/conformance2/glsl3/vector-dynamic-indexing-swizzled-lvalue.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>GLSL swizzled vector l-value dynamic indexing test</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 <!--
  21   The shader first assigns v.x to v.z (1.0)
  22   Then v.y to v.y (2.0)
  23   Then v.z to v.x (1.0)
  24 -->
  25 <script id="fshaderSwizzledLValueIndexing" type="x-shader/x-fragment">#version 300 es
  26 precision highp float;
  27 out vec4 my_FragColor;
  28 void main() {
  29     vec3 v = vec3(1.0, 2.0, 3.0);
  30     for (int i = 0; i < 3; i++) {
  31         v.zyx[i] = v[i];
  32     }
  33     my_FragColor = distance(v, vec3(1.0, 2.0, 1.0)) < 0.01 ? vec4(0, 1, 0, 1) : vec4(1, 0, 0, 1);
  34 }
  35 </script>
  36 <script type="application/javascript">
  37 "use strict";
  38 description("Dynamic indexing of swizzled l-values should work.");
  39
  40 GLSLConformanceTester.runRenderTests([
  41 {
  42   fShaderId: 'fshaderSwizzledLValueIndexing',
  43   fShaderSuccess: true,
  44   linkSuccess: true,
  45   passMsg: 'Index an l-value swizzled vector'
  46 },
  47 ], 2);
  48 </script>
  49 </body>
  50 </html>