1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<meta charset="UTF-8">
<title>Canvas test: 2d.composite.uncovered.image.source-out</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/html/canvas/resources/canvas-tests.js"></script>
<link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css">
<body class="show_output">
<h1>2d.composite.uncovered.image.source-out</h1>
<p class="desc">drawImage() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.</p>
<p class="output">Actual output:</p>
<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
<p class="output expectedtext">Expected output:<p><img src="2d.composite.uncovered.image.source-out.png" class="output expected" id="expected" alt="">
<ul id="d"></ul>
<script>
promise_test(async t => {
var canvas = document.getElementById('c');
var ctx = canvas.getContext('2d');
ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
ctx.fillRect(0, 0, 100, 50);
ctx.globalCompositeOperation = 'source-out';
const response = await fetch('/images/yellow.png')
const blob = await response.blob();
const bitmap = await createImageBitmap(blob);
ctx.drawImage(bitmap, 40, 40, 10, 10, 40, 50, 10, 10);
_assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
}, "drawImage() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.");
</script>
|
