content/canvas/test/test_2d.line.join.parallel.html

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0 1 <!DOCTYPE HTML>
michael@0 2 <title>Canvas test: 2d.line.join.parallel</title>
michael@0 3 <!-- Testing: Line joins are drawn at 180-degree joins -->
michael@0 4 <script src="/tests/SimpleTest/SimpleTest.js"></script>
michael@0 5 <link rel="stylesheet" href="/tests/SimpleTest/test.css">
michael@0 6 <body>
michael@0 7 <canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
michael@0 8 <script>
michael@0 9 function isPixel(ctx, x,y, r,g,b,a, pos, colour, d) {
michael@0 10 var pixel = ctx.getImageData(x, y, 1, 1);
michael@0 11 var pr = pixel.data[0],
michael@0 12 pg = pixel.data[1],
michael@0 13 pb = pixel.data[2],
michael@0 14 pa = pixel.data[3];
michael@0 15 ok(r-d <= pr && pr <= r+d &&
michael@0 16 g-d <= pg && pg <= g+d &&
michael@0 17 b-d <= pb && pb <= b+d &&
michael@0 18 a-d <= pa && pa <= a+d,
michael@0 19 "pixel "+pos+" is "+pr+","+pg+","+pb+","+pa+"; expected "+colour+" +/- "+d);
michael@0 20 }
michael@0 21
michael@0 22 SimpleTest.waitForExplicitFinish();
michael@0 23 addLoadEvent(function () {
michael@0 24
michael@0 25 var canvas = document.getElementById('c');
michael@0 26 var ctx = canvas.getContext('2d');
michael@0 27
michael@0 28 ctx.fillStyle = '#f00';
michael@0 29 ctx.fillRect(0, 0, 100, 50);
michael@0 30
michael@0 31 ctx.strokeStyle = '#0f0';
michael@0 32 ctx.lineWidth = 300;
michael@0 33 ctx.lineJoin = 'round';
michael@0 34 ctx.beginPath();
michael@0 35 ctx.moveTo(-100, 25);
michael@0 36 ctx.lineTo(0, 25);
michael@0 37 ctx.lineTo(-100, 25);
michael@0 38 ctx.stroke();
michael@0 39
michael@0 40 isPixel(ctx, 1,1, 0,255,0,255, "1,1", "0,255,0,255", 0);
michael@0 41 isPixel(ctx, 48,1, 0,255,0,255, "48,1", "0,255,0,255", 0);
michael@0 42 isPixel(ctx, 48,48, 0,255,0,255, "48,48", "0,255,0,255", 0);
michael@0 43 isPixel(ctx, 1,48, 0,255,0,255, "1,48", "0,255,0,255", 0);
michael@0 44
michael@0 45 SimpleTest.finish();
michael@0 46
michael@0 47 });
michael@0 48 </script>
michael@0 49

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