dom/canvas/test/webgl-conf/checkout/conformance/glsl/functions/glsl-function-acos.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 acos function test</title>
  12 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
  13 <link rel="stylesheet" href="../../../resources/glsl-feature-tests.css"/>
  14 <script src="../../../js/js-test-pre.js"></script>
  15 <script src="../../../js/webgl-test-utils.js"> </script>
  16 <script src="../../../js/glsl-generator.js"> </script>
  17 </head>
  18 <body>
  19 <div id="description"></div>
  20 <div id="console"></div>
  21 <script>
  22 "use strict";
  23
  24 var piConstants = [
  25   "const float kPI     = 3.14159265358979323846;",
  26   "const float kHalfPI = (kPI * 0.5);",
  27   "const float k2PI    = (kPI * 2.0);"
  28 ].join("\n");
  29
  30 var kPI = Math.PI;
  31 var kHalfPI = Math.PI * 0.5;
  32 var k2PI = Math.PI * 2.0;
  33 var acos = Math.acos;  // shorthand
  34
  35 GLSLGenerator.runReferenceImageTest({
  36   feature: "acos",
  37   args: "$(type) value",
  38   testFunc: "$(func)($(type))",
  39   gridRes: 8,
  40   tolerance: 2,
  41   extra: piConstants,
  42   tests: [
  43     {
  44       source: ["$(output) = vec4(",
  45                "    $(func)($(input).x * 0.8) / kPI,",
  46                "    $(func)($(input).y * 0.8) / kPI,",
  47                "    0,",
  48                "    1);"].join("\n"),
  49       generator: function(x, y, z, w) {
  50         return [ acos(x * 0.8) / kPI,
  51                  acos(y * 0.8) / kPI,
  52                  0,
  53                  1 ];
  54       },
  55     },
  56     {
  57       source: ["$(output) = vec4(",
  58                "    $(func)($(input).xy * 0.8) / kPI,",
  59                "    0, 1);"].join("\n"),
  60       generator: function(x, y, z, w) {
  61         return [ acos(x * 0.8) / kPI,
  62                  acos(y * 0.8) / kPI,
  63                  0,
  64                  1 ];
  65       },
  66     },
  67     {
  68       source: ["$(output) = vec4(",
  69                "    $(func)($(input).xyz * 0.8) / kPI,",
  70                "    1);"].join("\n"),
  71       generator: function(x, y, z, w) {
  72         return [ acos(x * 0.8) / kPI,
  73                  acos(y * 0.8) / kPI,
  74                  acos(z * 0.8) / kPI,
  75                  1 ];
  76       },
  77     },
  78     {
  79       source: ["$(output) = ",
  80                "    $(func)($(input) * 0.8) / kPI;",
  81               ].join("\n"),
  82       generator: function(x, y, z, w) {
  83         return [ acos(x * 0.8) / kPI,
  84                  acos(y * 0.8) / kPI,
  85                  acos(z * 0.8) / kPI,
  86                  acos(w * 0.8) / kPI ];
  87       },
  88     },
  89   ]
  90 });
  91 var successfullyParsed = true;
  92 </script>
  93 </body>
  94 </html>
  95