<!
DOCTYPE HTML >
<
html >
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=469170
-->
<
head >
<
title >Test for Bug 469170</
title >
<
script src=
"/tests/SimpleTest/SimpleTest.js" ></
script >
<
link rel=
"stylesheet" type=
"text/css" href=
"/tests/SimpleTest/test.css" />
</
head >
<
body onload=
"runTest();" >
<p><a target=
"_blank" href=
"https://bugzilla.mozilla.org/show_bug.cgi?id=469170 " >Mozil
la Bug 469170</a></p>
<iframe id="source" width="50" height="50" srcdoc="" ></iframe >
<pre id="test" >
<script type="application/javascript" >
/** Test for Bug 469170 **/
SimpleTest.waitForExplicitFinish();
function runTest() {
var source = document.getElementById('source' ).contentWindow;
rect = { left: 0, top: 0,
width: source .innerWidth, height: source .innerHeight };
var canvas = SpecialPowers.snapshotRect(source , rect, "transparent" );
var context = canvas .getContext("2d" );
var components = [ "red" , "green" , "blue" , "alpha" ];
var data = context.getImageData(0, 0, canvas .width, canvas .height).data;
var failed = false;
for (var i = 0; i < data.length; i++) {
if (data[i] != 0) {
is(data[i], 0, "pixel " + Math.floor(i/4) + " " + components[i%4]);
failed = true;
}
}
if (!failed) {
ok(!failed, "all pixels fully transparent" );
}
SimpleTest.finish();
}
</script >
</pre >
</body >
</html >
Messung V0.5 C=92 H=88 G=89
¤ Dauer der Verarbeitung: 0.20 Sekunden
(vorverarbeitet)
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