mirror of
https://github.com/servo/servo.git
synced 2025-07-12 18:03:49 +01:00
55 lines
1.8 KiB
HTML
55 lines
1.8 KiB
HTML
<!DOCTYPE html>
|
|
<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
|
|
<title>Canvas test: 2d.imageData.object.clamp</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.object.clamp</h1>
|
|
<p class="desc">ImageData.data clamps numbers to [0, 255]</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("ImageData.data clamps numbers to [0, 255]");
|
|
_addTest(function(canvas, ctx) {
|
|
|
|
var imgdata = ctx.getImageData(0, 0, 10, 10);
|
|
|
|
imgdata.data[0] = 100;
|
|
imgdata.data[0] = 300;
|
|
_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
|
|
imgdata.data[0] = 100;
|
|
imgdata.data[0] = -100;
|
|
_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
|
|
|
|
imgdata.data[0] = 100;
|
|
imgdata.data[0] = 200+Math.pow(2, 32);
|
|
_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
|
|
imgdata.data[0] = 100;
|
|
imgdata.data[0] = -200-Math.pow(2, 32);
|
|
_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
|
|
|
|
imgdata.data[0] = 100;
|
|
imgdata.data[0] = Math.pow(10, 39);
|
|
_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
|
|
imgdata.data[0] = 100;
|
|
imgdata.data[0] = -Math.pow(10, 39);
|
|
_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
|
|
|
|
imgdata.data[0] = 100;
|
|
imgdata.data[0] = -Infinity;
|
|
_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
|
|
imgdata.data[0] = 100;
|
|
imgdata.data[0] = Infinity;
|
|
_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
|
|
|
|
|
|
});
|
|
</script>
|
|
|