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<!--
onmessage = function(e) {
function processPixels(imagedata) {
var pixeldata = imagedata.data;
for (var i = 0; i < pixeldata.length; i = i+4) {
pixeldata[i] = 128;
}
postMessage(imagedata);
}
processPixels(e.data[0]);
}
/*
-->
<!doctype html>
<title>posting an imagedata (from a cloned canvas) in an array</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<script>
(async_test()).step(function() {
var worker = new Worker('#');
var canvas = document.createElement('canvas');
var clone = canvas.cloneNode(true);
var ctx = clone.getContext('2d');
var imagedata = ctx.getImageData(0, 0, 300, 150);
worker.postMessage([imagedata]);
worker.onmessage = this.step_func(function(e) {
var pixeldata = e.data.data;
for (var i = 0; i < pixeldata.length; i++) {
assert_equals(pixeldata[i], (i % 4 == 0) ? 128 : 0);
}
this.done();
});
});
</script>
<!--
*/
//-->
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