summaryrefslogtreecommitdiffstats
path: root/testing/web-platform/tests/html/canvas/offscreen/fill-and-stroke-styles/2d.gradient.radial.cone.shape1.html
blob: 290923b5e5ca5b1cb94ea83cc8a3bb80e1d63db2 (plain)
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
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<title>OffscreenCanvas test: 2d.gradient.radial.cone.shape1</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/html/canvas/resources/canvas-tests.js"></script>

<h1>2d.gradient.radial.cone.shape1</h1>
<p class="desc"></p>


<script>
var t = async_test("");
var t_pass = t.done.bind(t);
var t_fail = t.step_func(function(reason) {
    throw reason;
});
t.step(function() {

  var canvas = new OffscreenCanvas(100, 50);
  var ctx = canvas.getContext('2d');

  var tol = 1; // tolerance to avoid antialiasing artifacts

  ctx.fillStyle = '#0f0';
  ctx.fillRect(0, 0, 100, 50);

  ctx.fillStyle = '#f00';
  ctx.beginPath();
  ctx.moveTo(30+tol, 40);
  ctx.lineTo(110, -20+tol);
  ctx.lineTo(110, 100-tol);
  ctx.fill();

  var g = ctx.createRadialGradient(30+10*5/2, 40, 10*3/2, 30+10*15/4, 40, 10*9/4);
  g.addColorStop(0, '#0f0');
  g.addColorStop(1, '#0f0');
  ctx.fillStyle = g;
  ctx.fillRect(0, 0, 100, 50);

  _assertPixel(canvas, 1,1, 0,255,0,255);
  _assertPixel(canvas, 50,1, 0,255,0,255);
  _assertPixel(canvas, 98,1, 0,255,0,255);
  _assertPixel(canvas, 1,25, 0,255,0,255);
  _assertPixel(canvas, 50,25, 0,255,0,255);
  _assertPixelApprox(canvas, 98,25, 0,255,0,255, 1);
  _assertPixel(canvas, 1,48, 0,255,0,255);
  _assertPixelApprox(canvas, 50,48, 0,255,0,255, 1);
  _assertPixel(canvas, 98,48, 0,255,0,255);
  t.done();

});
</script>