content/canvas/test/test_2d.composite.canvas.luminosity.html@6474c204b198 (annotated)
content/canvas/test/test_2d.composite.canvas.luminosity.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.composite.canvas.xor</title> |
| michael@0 | 3 | <script src="/tests/SimpleTest/SimpleTest.js"></script> |
| michael@0 | 4 | <link rel="stylesheet" href="/tests/SimpleTest/test.css"> |
| michael@0 | 5 | <body> |
| michael@0 | 6 | <canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas> |
| michael@0 | 7 | <script> |
| michael@0 | 8 | function isPixel(ctx, x,y, r,g,b,a, pos, colour, d) { |
| michael@0 | 9 | var pixel = ctx.getImageData(x, y, 1, 1); |
| michael@0 | 10 | var pr = pixel.data[0], |
| michael@0 | 11 | pg = pixel.data[1], |
| michael@0 | 12 | pb = pixel.data[2], |
| michael@0 | 13 | pa = pixel.data[3]; |
| michael@0 | 14 | ok(r-d <= pr && pr <= r+d && |
| michael@0 | 15 | g-d <= pg && pg <= g+d && |
| michael@0 | 16 | b-d <= pb && pb <= b+d && |
| michael@0 | 17 | a-d <= pa && pa <= a+d, |
| michael@0 | 18 | "pixel "+pos+" is "+pr+","+pg+","+pb+","+pa+"; expected "+colour+" +/- "+d); |
| michael@0 | 19 | } |
| michael@0 | 20 | |
| michael@0 | 21 | SimpleTest.waitForExplicitFinish(); |
| michael@0 | 22 | addLoadEvent(function () { |
| michael@0 | 23 | |
| michael@0 | 24 | var canvas = document.getElementById('c'); |
| michael@0 | 25 | var ctx = canvas.getContext('2d'); |
| michael@0 | 26 | |
| michael@0 | 27 | |
| michael@0 | 28 | var canvas2 = document.createElement('canvas'); |
| michael@0 | 29 | canvas2.width = canvas.width; |
| michael@0 | 30 | canvas2.height = canvas.height; |
| michael@0 | 31 | var ctx2 = canvas2.getContext('2d'); |
| michael@0 | 32 | ctx2.drawImage(document.getElementById('yellow75.png'), 0, 0); |
| michael@0 | 33 | ctx.fillStyle = 'rgba(0, 255, 255, 0.5)'; |
| michael@0 | 34 | ctx.fillRect(0, 0, 100, 50); |
| michael@0 | 35 | ctx.globalCompositeOperation = 'luminosity'; |
| michael@0 | 36 | ctx.drawImage(canvas2, 0, 0); |
| michael@0 | 37 | isPixel(ctx, 50,25, 176,255,146,223, "50,25", "176,255,146,223", 5); |
| michael@0 | 38 | |
| michael@0 | 39 | SimpleTest.finish(); |
| michael@0 | 40 | |
| michael@0 | 41 | }); |
| michael@0 | 42 | </script> |
| michael@0 | 43 | <img src="image_yellow75.png" id="yellow75.png" class="resource"> |
| michael@0 | 44 |
