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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 length 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: "length",
args: "$(type) value",
baseArgs: "value$(field)",
testFunc: "$(func)($(type))",
fragmentTolerance: 1,
emuFuncs: [
{ type: "float",
code: [
"float $(func)_emu($(args)) {",
" return abs($(baseArgs));",
"}"].join("\n")
},
{ type: "vec2",
code: [
"float $(func)_emu($(args)) {",
" return sqrt(",
" $(baseArgsX) * $(baseArgsX) + ",
" $(baseArgsY) * $(baseArgsY));",
"}"].join("\n")
},
{ type: "vec3",
code: [
"float $(func)_emu($(args)) {",
" return sqrt(",
" $(baseArgsX) * $(baseArgsX) + ",
" $(baseArgsY) * $(baseArgsY) + ",
" $(baseArgsZ) * $(baseArgsZ));",
"}"].join("\n")
},
{ type: "vec4",
code: [
"float $(func)_emu($(args)) {",
" return sqrt(",
" $(baseArgsX) * $(baseArgsX) + ",
" $(baseArgsY) * $(baseArgsY) + ",
" $(baseArgsZ) * $(baseArgsZ) + ",
" $(baseArgsW) * $(baseArgsW));",
"}"].join("\n")
}
],
gridRes: 8,
tests: [
["$(output) = vec4(",
" $(func)($(input).x * 8.0 - 4.0) / 4.0,",
" $(func)($(input).y * 8.0 - 4.0) / 4.0,",
" 0,",
" 1);"].join("\n"),
["$(output) = vec4(",
" $(func)($(input).xy * 8.0 - 4.0) / 4.0,",
" 0, 0, 1);"].join("\n"),
["$(output) = vec4(",
" $(func)($(input).xyz * 8.0 - 4.0) / 4.0,",
" 0, 0, 1);"].join("\n"),
["$(output) = vec4(",
" $(func)($(input) * 8.0 - 4.0) / 4.0, 0, 0, 1);",
].join("\n")
]
});
var successfullyParsed = true;
</script>
</body>
</html>