boolean_precision.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>WebGL GLSL Conformance Tests</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-conformance-test.js"></script>

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<body>

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

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

<script id="vertexTest" type="text/something-not-javascript">

// parsing boolean variables with precision should fail

void main() {

  mediump $(type) fail = $(initializer);

  gl_Position = vec4(0.0, 0.0, 0.0, 1.0);

</script>

<script id="fragmentTest" type="text/something-not-javascript">

// parsing boolean variables with precision should fail

void main() {

  mediump $(type) fail = $(initializer);

  gl_FragColor = vec4(0.0, 0.0, 0.0, 1.0);

</script>

<script>

"use strict";

var wtu = WebGLTestUtils;

var types = ['bool', 'bvec2', 'bvec3', 'bvec4'];

var tests = [];

var vTestSource = wtu.getScript("vertexTest");

var fTestSource = wtu.getScript("fragmentTest");

for (var i = 0; i < types.length; ++i) {

    var initializer = 'true';

    if (types[i] !== 'bool') {

        initializer = types[i] + "(true";

        for (var j = 0; j < i; ++j) {

            initializer += ", true";

        initializer += ")";

    var subs = {type: types[i], initializer: initializer};

    tests.push({

        vShaderSource: wtu.replaceParams(vTestSource, subs),

        vShaderSuccess: false,

        passMsg: "vertex shader with a " + types[i] + " variable with precision should fail."

});

    tests.push({

        fShaderSource: wtu.replaceParams(fTestSource, subs),

        fShaderSuccess: false,

        passMsg: "fragment shader with a " + types[i] + " variable with precision should fail."

});

GLSLConformanceTester.runTests(tests);

var successfullyParsed = true;

</script>

</body>

</html>