<!--
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 array assignment test</title>
<link rel="stylesheet" href="../../resources/js-test-style.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>
<script id="fshaderSimple" type="x-shader/x-fragment">#version 300 es
precision mediump float;

out vec4 my_FragColor;

void main() {
    // This simple test uses the ESSL1 style array initialization in order
    // to be able to test array assignment independently of array constructors.
    int a[3];
    int b[3];
    for (int i = 0; i < 3; ++i) {
        a[i] = 0;
        b[i] = i;
    }
    a = b;
    bool fail = false;
    for (int i = 0; i < 3; ++i) {
        if (a[i] != i) {
            fail = true;
        }
    }
    my_FragColor = vec4(0.0, (fail ? 0.0 : 1.0), 0.0, 1.0);
}
</script>
<script id="fshaderArrayOfStructs" type="x-shader/x-fragment">#version 300 es
precision mediump float;

out vec4 my_FragColor;

struct S {
    int foo;
};

void main() {
    // This simple test uses the ESSL1 style array initialization in order
    // to be able to test array assignment independently of array constructors.
    S a[3];
    S b[3];
    for (int i = 0; i < 3; ++i) {
        a[i].foo = 0;
        b[i].foo = i;
    }
    a = b;
    bool fail = false;
    for (int i = 0; i < 3; ++i) {
        if (a[i].foo != i) {
            fail = true;
        }
    }
    my_FragColor = vec4(0.0, (fail ? 0.0 : 1.0), 0.0, 1.0);
}
</script>
<script type="application/javascript">
"use strict";
description("Assigning arrays should work.");

GLSLConformanceTester.runRenderTests([
{
  fShaderId: 'fshaderSimple',
  fShaderSuccess: true,
  linkSuccess: true,
  passMsg: 'Arrays of integers'
},
{
  fShaderId: 'fshaderArrayOfStructs',
  fShaderSuccess: true,
  linkSuccess: true,
  passMsg: 'Arrays of structs'
}
], 2);
</script>
</body>
</html>

