gecko/content/canvas/test/test_2d.drawImage.animated.apng.html

61 lines
1.8 KiB
HTML
Raw Normal View History

<!DOCTYPE HTML>
<title>Canvas test: 2d.drawImage.animated.apng</title>
<!-- Testing: drawImage() of an APNG with no poster frame draws the first frame -->
<script src="/MochiKit/MochiKit.js"></script>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css">
<body>
<canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></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);
}
function todo_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];
todo(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);
}
function deferTest() {
_deferred = true;
}
function wrapFunction(f) {
return function () {
f.apply(null, arguments);
SimpleTest.finish();
}
}
SimpleTest.waitForExplicitFinish();
MochiKit.DOM.addLoadEvent(function () {
var canvas = document.getElementById('c');
var ctx = canvas.getContext('2d');
deferTest();
setTimeout(wrapFunction(function () {
ctx.drawImage(document.getElementById('anim-gr.png'), 0, 0);
todo_isPixel(ctx, 50,25, 0,255,0,255, "50,25", "0,255,0,255", 2);
}), 500);
});
</script>
<img src="image_anim-gr.png" id="anim-gr.png" class="resource">