<!
DOCTYPE HTML>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1567544
Test that globalCompositeOperation is applied to SVG images drawn with `drawImage`.
-->
<
title>Test for Bug 1567544</
title>
<
script src=
"/tests/SimpleTest/SimpleTest.js"></
script>
<
link rel=
"stylesheet" href=
"/tests/SimpleTest/test.css">
<
body>
<
canvas id=
"c" width=
"100" height=
"50"></
canvas>
<
script>
function isPixel(ctx, x,y, r,g,b,a, pos, colour, d) {
var pixel = ctx.getImageData(x, y, 1, 1);
var pr = pixel.data[0],
pg = pixel.data[1],
pb = pixel.data[2],
pa = pixel.data[3];
ok(r-d <= pr && pr <= r+d &&
g-d <= pg && pg <= g+d &&
b-d <= pb && pb <= b+d &&
a-d <= pa && pa <= a+d,
"pixel "+pos+
" is "+pr+
","+pg+
","+pb+
","+pa+
"; expected "+colour+
" +/- "+d);
}
SimpleTest.waitForExplicitFinish();
addLoadEvent(function () {
var canvas = document.getElementById(
'c');
var ctx =
canvas.getContext(
'2d');
ctx.beginPath();
ctx.arc(50, 50, 37.5, 0, Math.PI * 2);
ctx.fillStyle =
'red';
ctx.fill();
ctx.globalCompositeOperation =
'destination-in';
ctx.drawImage(document.getElementById(
'roundrectangle.svg'), 50, 40);
isPixel(ctx, 82,38, 0,0,0,0,
"82,38",
"0,0,0,0", 0);
isPixel(ctx, 82,48, 255,0,0,255,
"82,48",
"255,0,0,255", 0);
SimpleTest.finish();
});
</
script>
<
img src=
"image_roundrectangle.svg" id=
"roundrectangle.svg" class=
"resource">
