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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>Test for OffscreenCanvas TransferToImageBitmap</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/tests/tex-image-and-sub-image-utils.js"></script>
<script src="../../js/tests/offscreencanvas-transfer-image-bitmap.js"></script>
</head>
<body>
<div id="description"></div>
<div id="console"></div>
<script id='myWorker' type='text/worker'>
self.onmessage = function(e) {
var canvas = new OffscreenCanvas(128, 128);
var gl = canvas.getContext("webgl2");
gl.clearColor(1.0, 1.0, 0.0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);
var image = canvas.transferToImageBitmap();
self.postMessage({ bitmap: image },
[ image ]);
};
</script>
<script>
"use strict";
description("This test ensures that the transferToImageBitmap function of OffscreenCanvas webgl2 context is functional.");
if (!window.OffscreenCanvas) {
testPassed("No OffscreenCanvas support");
finishTest();
} else {
var blob = new Blob([document.getElementById('myWorker').textContent]);
var worker = new Worker(URL.createObjectURL(blob));
worker.onmessage = function(msg) {
testTransferToImageBitmap("webgl2", msg.data.bitmap);
finishTest();
}
worker.postMessage("Start Worker");
}
</script>
</body>
</html>
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