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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
found in the LICENSE.txt file.
-->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>GLSL acos 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";
var piConstants = [
"const float kPI = 3.14159265358979323846;",
"const float kHalfPI = (kPI * 0.5);",
"const float k2PI = (kPI * 2.0);"
].join("\n");
var kPI = Math.PI;
var kHalfPI = Math.PI * 0.5;
var k2PI = Math.PI * 2.0;
var acos = Math.acos; // shorthand
GLSLGenerator.runReferenceImageTest({
feature: "acos",
args: "$(type) value",
testFunc: "$(func)($(type))",
gridRes: 8,
tolerance: 2,
extra: piConstants,
tests: [
{
source: ["$(output) = vec4(",
" $(func)($(input).x * 0.8) / kPI,",
" $(func)($(input).y * 0.8) / kPI,",
" 0,",
" 1);"].join("\n"),
generator: function(x, y, z, w) {
return [ acos(x * 0.8) / kPI,
acos(y * 0.8) / kPI,
0,
1 ];
},
},
{
source: ["$(output) = vec4(",
" $(func)($(input).xy * 0.8) / kPI,",
" 0, 1);"].join("\n"),
generator: function(x, y, z, w) {
return [ acos(x * 0.8) / kPI,
acos(y * 0.8) / kPI,
0,
1 ];
},
},
{
source: ["$(output) = vec4(",
" $(func)($(input).xyz * 0.8) / kPI,",
" 1);"].join("\n"),
generator: function(x, y, z, w) {
return [ acos(x * 0.8) / kPI,
acos(y * 0.8) / kPI,
acos(z * 0.8) / kPI,
1 ];
},
},
{
source: ["$(output) = ",
" $(func)($(input) * 0.8) / kPI;",
].join("\n"),
generator: function(x, y, z, w) {
return [ acos(x * 0.8) / kPI,
acos(y * 0.8) / kPI,
acos(z * 0.8) / kPI,
acos(w * 0.8) / kPI ];
},
},
]
});
var successfullyParsed = true;
</script>
</body>
</html>