mirror of
https://github.com/servo/servo
synced 2026-04-29 19:07:38 +02:00
45 lines
1.4 KiB
HTML
45 lines
1.4 KiB
HTML
<!DOCTYPE html>
|
|
<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
|
|
<title>Canvas test: 2d.imageData.put.unchanged</title>
|
|
<script src="/resources/testharness.js"></script>
|
|
<script src="/resources/testharnessreport.js"></script>
|
|
<script src="/common/canvas-tests.js"></script>
|
|
<link rel="stylesheet" href="/common/canvas-tests.css">
|
|
<body class="show_output">
|
|
|
|
<h1>2d.imageData.put.unchanged</h1>
|
|
<p class="desc">putImageData(getImageData(...), ...) has no effect</p>
|
|
|
|
|
|
<p class="output">Actual output:</p>
|
|
<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
|
|
|
|
<ul id="d"></ul>
|
|
<script>
|
|
var t = async_test("putImageData(getImageData(...), ...) has no effect");
|
|
_addTest(function(canvas, ctx) {
|
|
|
|
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) {
|
|
_assertSame(olddata[i], imgdata2.data[i], "olddata[\""+(i)+"\"]", "imgdata2.data[\""+(i)+"\"]");
|
|
}
|
|
|
|
|
|
});
|
|
</script>
|
|
|