1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/canvas/test/test_2d.composite.solid.difference.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,39 @@
1.4 +<!DOCTYPE HTML>
1.5 +<title>Canvas test: 2d.composite.solid.lighter</title>
1.6 +<script src="/tests/SimpleTest/SimpleTest.js"></script>
1.7 +<link rel="stylesheet" href="/tests/SimpleTest/test.css">
1.8 +<body>
1.9 +<canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
1.10 +<script>
1.11 +function isPixel(ctx, x,y, r,g,b,a, pos, colour, d) {
1.12 + var pixel = ctx.getImageData(x, y, 1, 1);
1.13 + var pr = pixel.data[0],
1.14 + pg = pixel.data[1],
1.15 + pb = pixel.data[2],
1.16 + pa = pixel.data[3];
1.17 + ok(r-d <= pr && pr <= r+d &&
1.18 + g-d <= pg && pg <= g+d &&
1.19 + b-d <= pb && pb <= b+d &&
1.20 + a-d <= pa && pa <= a+d,
1.21 + "pixel "+pos+" is "+pr+","+pg+","+pb+","+pa+"; expected "+colour+" +/- "+d);
1.22 +}
1.23 +
1.24 +SimpleTest.waitForExplicitFinish();
1.25 +addLoadEvent(function () {
1.26 +
1.27 +var canvas = document.getElementById('c');
1.28 +var ctx = canvas.getContext('2d');
1.29 +
1.30 +
1.31 +ctx.fillStyle = 'rgba(0, 255, 255, 1.0)';
1.32 +ctx.fillRect(0, 0, 100, 50);
1.33 +ctx.globalCompositeOperation = 'difference';
1.34 +ctx.fillStyle = 'rgba(255, 255, 0, 1.0)';
1.35 +ctx.fillRect(0, 0, 100, 50);
1.36 +isPixel(ctx, 50,25, 255,0,255,255, "50,25", "255,0,255,255", 5);
1.37 +
1.38 +SimpleTest.finish();
1.39 +
1.40 +});
1.41 +</script>
1.42 +
