зеркало из https://github.com/mozilla/pjs.git
41 строка
1.2 KiB
HTML
41 строка
1.2 KiB
HTML
<!DOCTYPE HTML>
|
|
<title>Canvas test: 2d.imageData.put.unchanged</title>
|
|
<!-- Testing: putImageData(getImageData(...), ...) has no effect -->
|
|
<script src="/MochiKit/packed.js"></script>
|
|
<script src="/tests/SimpleTest/SimpleTest.js"></script>
|
|
<link rel="stylesheet" href="/tests/SimpleTest/test.css">
|
|
<body>
|
|
<canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
|
|
<script>
|
|
|
|
SimpleTest.waitForExplicitFinish();
|
|
MochiKit.DOM.addLoadEvent(function () {
|
|
|
|
var canvas = document.getElementById('c');
|
|
var ctx = canvas.getContext('2d');
|
|
|
|
var i = 0;
|
|
for (var y = 0; y < 16; ++y) {
|
|
for (var x = 0; x < 16; ++x, ++i) {
|
|
ctx.fillStyle = 'rgba(' + i + ',' + (Math.floor(i*1.5) % 256) + ',' + (Math.floor(i*23.3) % 256) + ',' + (i/256) + ')';
|
|
ctx.fillRect(x, y, 1, 1);
|
|
}
|
|
}
|
|
var imgdata1 = ctx.getImageData(0.1, 0.2, 15.8, 15.9);
|
|
var olddata = [];
|
|
for (var i = 0; i < imgdata1.data.length; ++i)
|
|
olddata[i] = imgdata1.data[i];
|
|
|
|
ctx.putImageData(imgdata1, 0.1, 0.2);
|
|
|
|
var imgdata2 = ctx.getImageData(0.1, 0.2, 15.8, 15.9);
|
|
for (var i = 0; i < imgdata2.data.length; ++i) {
|
|
ok(olddata[i] === imgdata2.data[i], "olddata[\""+(i)+"\"] === imgdata2.data[\""+(i)+"\"]");
|
|
}
|
|
|
|
SimpleTest.finish();
|
|
|
|
});
|
|
</script>
|
|
|