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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">
<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>
<title></title>
</head>
<body>
<div id="description"></div>
<div id="console"></div>
<script id="fragmentShader" type="text/something-not-javascript">
precision mediump float;
struct S { $(outer_type) u; };
void main() {
S S; // This is legal, 'S' as a typename is defined in another scope.
{
struct S { $(inner_type) a; }; // This is legal as well, 'S' is now defined as a variable name in an ancestor scope
S newvar;
newvar.a = $(initializer);
gl_FragColor = $(fragColor);
}
}
</script>
<script>
"use strict";
description("This test verifies that defining a typename in a new scope when the typename is the name of a variable that hides a typename declaration succeeds for all combinations of GLSL types.");
var tests = [];
var wtu = WebGLTestUtils;
var typeInfo = [
{ Type: 'float', initializer: '1.0', fragColor: 'vec4(0.0, newvar.a, 0.0, 1.0)' },
{ Type: 'vec2', initializer: 'vec2(0.0, 1.0)', fragColor: 'vec4(newvar.a, 0.0, 1.0)' },
{ Type: 'vec3', initializer: 'vec3(0.0, 1.0, 0.0)', fragColor: 'vec4(newvar.a, 1.0)' },
{ Type: 'vec4', initializer: 'vec4(0.0, 1.0, 0.0, 1.0)', fragColor: 'newvar.a' },
{ Type: 'int', initializer: '1', fragColor: 'vec4(0.0, newvar.a, 0.0, 1.0)' },
{ Type: 'ivec2', initializer: 'ivec2(0, 1)', fragColor: 'vec4(newvar.a, 0.0, 1.0)' },
{ Type: 'ivec3', initializer: 'ivec3(0, 1, 0)', fragColor: 'vec4(newvar.a, 1.0)' },
{ Type: 'ivec4', initializer: 'ivec4(0, 1, 0, 1)', fragColor: 'vec4(newvar.a)' },
{ Type: 'bool', initializer: 'true', fragColor: 'vec4(0.0, newvar.a, 0.0, 1.0)' },
{ Type: 'bvec2', initializer: 'bvec2(false, true)', fragColor: 'vec4(newvar.a, 0.0, 1.0)' },
{ Type: 'bvec3', initializer: 'bvec3(false, true, false)', fragColor: 'vec4(newvar.a, 1.0)' },
{ Type: 'bvec4', initializer: 'bvec4(false,true,false,true)',fragColor: 'vec4(newvar.a)' },
];
typeInfo.forEach(function (outerType) {
typeInfo.forEach(function (innerType) {
var replaceParams = {
outer_type: outerType.Type,
inner_type: innerType.Type,
// use the initializer and fragColor for the inner type. Its definition should override the variable name in the outerscope.
initializer: innerType.initializer,
fragColor: innerType.fragColor
};
tests.push({
fShaderSource: wtu.replaceParams(wtu.getScript('fragmentShader'), replaceParams),
passMsg: 'Outer struct type: ' + outerType.Type + ' inner struct type: ' + innerType.Type,
fShaderSuccess: true,
linkSuccess: true,
render: true
});
})
})
GLSLConformanceTester.runTests(tests);
var successfullyParsed = true;
</script>
</body>
</html>
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