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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=743615
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 743615</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="application/javascript" src="utils_bug743615.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=743615">Mozilla Bug 743615</a>
<p id="display"></p>
<div id="content" style="display: none">
<canvas id="c" width="200" height="200"><canvas>
</div>
<pre id="test">
<script type="application/javascript">
/** Test for structured cloning ImageData. **/
SimpleTest.waitForExplicitFinish();
window.addEventListener('message', windowMessage);
startTest();
function startTest() {
// Make an ImageData.
var ctx = document.getElementById('c').getContext('2d');
ctx.fillStyle = 'rgb(';
ctx.fillRect(30, 30, 50, 50);
// Make a blank ImageData.
var imageData = ctx.createImageData(200, 200);
is(imageData.data.length, imageData.width * imageData.height * 4,
'right size for data');
// Write some things into it.
var pattern = makePattern(imageData.data.length, 42, 7);
setPattern(imageData, pattern);
ok(checkPattern(imageData, pattern), 'Can read it back before sending');
// PostMessage it to ourselves.
window.postMessage({ imageData: imageData,
pattern: pattern,
dataRef: imageData.data }, '*');
}
function windowMessage(evt) {
// Check the pattern we received.
var imageData = evt.data.imageData;
var pattern = evt.data.pattern;
ok(checkPattern(imageData, pattern),
'postMessage from self worked correctly');
is(imageData.data, evt.data.dataRef,
'Should have backrefs for imagedata buffer');
// Make a new pattern, and send it to a worker.
pattern = makePattern(imageData.data.length, 4, 3);
setPattern(imageData, pattern);
var worker = new Worker('worker_bug743615.js');
worker.onmessage = workerMessage;
worker.postMessage( {imageData: imageData, pattern: pattern });
}
function workerMessage(evt) {
// Relay the results of the worker-side tests.
is(evt.data.statusMessage, 'PASS', evt.data.statusMessage);
// Test what the worker sent us.
ok(checkPattern(evt.data.imageData, evt.data.pattern),
'postMessage from worker worked correctly');
// All done.
SimpleTest.finish();
}
</script>
</pre>
</body>
</html>
|
