dom/canvas/test/webgl-conf/checkout/conformance/glsl/functions/glsl-function-length.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 length 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 GLSLGenerator.runFeatureTest({
  25   feature: "length",
  26   args: "$(type) value",
  27   baseArgs: "value$(field)",
  28   testFunc: "$(func)($(type))",
  29   fragmentTolerance: 1,
  30   emuFuncs: [
  31     { type: "float",
  32       code: [
  33         "float $(func)_emu($(args)) {",
  34         "   return abs($(baseArgs));",
  35         "}"].join("\n")
  36     },
  37     { type: "vec2",
  38       code: [
  39         "float $(func)_emu($(args)) {",
  40         "   return sqrt(",
  41         "       $(baseArgsX) * $(baseArgsX) + ",
  42         "       $(baseArgsY) * $(baseArgsY));",
  43         "}"].join("\n")
  44     },
  45     { type: "vec3",
  46       code: [
  47         "float $(func)_emu($(args)) {",
  48         "   return sqrt(",
  49         "       $(baseArgsX) * $(baseArgsX) + ",
  50         "       $(baseArgsY) * $(baseArgsY) + ",
  51         "       $(baseArgsZ) * $(baseArgsZ));",
  52         "}"].join("\n")
  53     },
  54     { type: "vec4",
  55       code: [
  56         "float $(func)_emu($(args)) {",
  57         "   return sqrt(",
  58         "       $(baseArgsX) * $(baseArgsX) + ",
  59         "       $(baseArgsY) * $(baseArgsY) + ",
  60         "       $(baseArgsZ) * $(baseArgsZ) + ",
  61         "       $(baseArgsW) * $(baseArgsW));",
  62         "}"].join("\n")
  63     }
  64   ],
  65   gridRes: 8,
  66   tests: [
  67     ["$(output) = vec4(",
  68      "    $(func)($(input).x * 8.0 - 4.0) / 4.0,",
  69      "    $(func)($(input).y * 8.0 - 4.0) / 4.0,",
  70      "    0,",
  71      "    1);"].join("\n"),
  72     ["$(output) = vec4(",
  73      "    $(func)($(input).xy * 8.0 - 4.0) / 4.0,",
  74      "    0, 0, 1);"].join("\n"),
  75     ["$(output) = vec4(",
  76      "    $(func)($(input).xyz * 8.0 - 4.0) / 4.0,",
  77      "    0, 0, 1);"].join("\n"),
  78     ["$(output) = vec4(",
  79      "    $(func)($(input) * 8.0 - 4.0) / 4.0, 0, 0, 1);",
  80     ].join("\n")
  81   ]
  82 });
  83 var successfullyParsed = true;
  84 </script>
  85 </body>
  86 </html>
  87