dom/canvas/test/webgl-conf/checkout/conformance2/glsl3/input-with-interpotaion-as-lvalue.html
author AndiAJ <andiaj@users.noreply.github.com>
Tue, 15 Jul 2025 12:24:39 +0000 (9 hours ago)
changeset 796640 bb851a378010881961ccfae598f355ea1211941d
parent 515042 f3948e689af746c84af3a24b00e0a33762d15cf7
permissions -rw-r--r--
Bug 1977313 - Fix failing custom search engines related UI tests r=aaronmt The UI test started to fail after this [[ https://phabricator.services.mozilla.com/D252233 | change ]] landed. To fix the 2 UI tests I've removed the snackbar assertions. Both tests successfuly passed 10x on Firebase ✅ Differential Revision: https://phabricator.services.mozilla.com/D257244
<!--
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>Negative tests for writting to a shader input with interpolation qualifier</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>
</head>
<body>
<div id="description"></div>
<div id="console"></div>
<!--
According to ESSL 3.00.6 section 4.3.4:
"Variables declared as in or centroid in may not be written to during shader execution.",
these tests ensure that a compile error is generated when using a shader input with interpolation qualifier as l-value.
-->
<script type="application/javascript">
"use strict";
description();

var vertexShaderTemplate = [
    '#version 300 es',
    '$(InterpolationQualifier) out float v_float_varying;',
    'void main()',
    '{',
    '    v_float_varying = 1.0;',
    '    gl_Position = vec4(0.0, 0.0, 0.0, 1.0);',
    '}'
].join('\n');

var fragmentShaderTemplate = [
    '#version 300 es',
    'precision mediump float;',
    '$(InterpolationQualifier) in float v_float_varying;',
    'out vec4 my_color;',
    'void main()',
    '{',
    '    v_float_varying = 1.0;',
    '    my_color = vec4(1.0, 0.0, 0.0, v_float_varying);',
    '}'
].join('\n');

var errorMessageTemplate = "Writting to shader inputs with '$(InterpolationQualifier)' qualifier must fail";

var testDataList = [
{
    InterpolationQualifier: 'flat'
},
{
    InterpolationQualifier: 'smooth'
},
{
    InterpolationQualifier: 'centroid'
}
];

var wtu = WebGLTestUtils;

var tests = [];
for (var i = 0; i < testDataList.length; ++i) {
    tests.push({
        vShaderSource: wtu.replaceParams(vertexShaderTemplate, testDataList[i]),
        vShaderSuccess: true,
        fShaderSource: wtu.replaceParams(fragmentShaderTemplate, testDataList[i]),
        fShaderSuccess: false,
        linkSuccess: false,
        passMsg: wtu.replaceParams(errorMessageTemplate, testDataList[i])
    });
}

GLSLConformanceTester.runTests(tests, 2);
</script>
</body>
</html>