glsl-function-abs.html

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Copyright (c) 2019 The Khronos Group Inc.

Use of this source code is governed by an MIT-style license that can be

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<!DOCTYPE html>

<html>

<head>

<meta charset="utf-8">

<title>GLSL abs function test</title>

<link rel="stylesheet" href="../../../resources/js-test-style.css"/>

<link rel="stylesheet" href="../../../resources/glsl-feature-tests.css"/>

<script src="../../../js/js-test-pre.js"></script>

<script src="../../../js/webgl-test-utils.js"> </script>

<script src="../../../js/glsl-generator.js"> </script>

</head>

<body>

<div id="description"></div>

<div id="console"></div>

<script>

"use strict";

GLSLGenerator.runFeatureTest({

  feature: "abs",

  testFunc: "$(func)($(arg0))",

  emuFunc: ["float $(func)_base(float value) {",

            "  return value >= 0.0 ? value : -value;",

            "}"].join("\n"),

  gridRes: 4,

  tests: [

    ["$(output) = vec4(",

     "    $(func)($(input).x * 2.0 - 1.0),",

     "    0.5,",

     "    0,",

     "    1);"].join("\n"),

    "$(output) = vec4(0, $(func)($(input).xy * 2.0 - vec2(1, 1)), 1);",

    "$(output) = vec4($(func)($(input).xyz * 2.0 - vec3(1, 1, 1)), 1);",

    "$(output) = $(func)($(input) * 2.0 - vec4(1, 1, 1, 1));"

});

var successfullyParsed = true;

</script>

</body>

</html>