The Tor Browser / file comparison
comparison: dom/tests/mochitest/bugs/test_bug389366.html
dom/tests/mochitest/bugs/test_bug389366.html
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:199bb98624b1 |
|---|---|
| 1 <!DOCTYPE HTML> | |
| 2 <html> | |
| 3 <!-- | |
| 4 https://bugzilla.mozilla.org/show_bug.cgi?id=389366 | |
| 5 --> | |
| 6 <head> | |
| 7 <title>Test for Bug 389366</title> | |
| 8 <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> | |
| 9 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> | |
| 10 </head> | |
| 11 <body> | |
| 12 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=389366">Mozilla Bug 389366</a> | |
| 13 <p id="display"></p> | |
| 14 <div id="content" style="display: none"> | |
| 15 <h4>Canvas testcase</h4> | |
| 16 | |
| 17 Canvas, with pixel set to #ff0000 at 50% opacity:<br> | |
| 18 <canvas id="canvas1" width="10" height="10"></canvas> | |
| 19 <br> | |
| 20 <canvas id="canvas2" width="10" height="10"></canvas> | |
| 21 | |
| 22 </div> | |
| 23 <pre id="test"> | |
| 24 <script class="testbody" type="text/javascript"> | |
| 25 | |
| 26 SimpleTest.waitForExplicitFinish(); | |
| 27 | |
| 28 function test() | |
| 29 { | |
| 30 // Draw to canvas1 | |
| 31 var canvas1 = document.getElementById("canvas1"); | |
| 32 var ctx1 = canvas1.getContext("2d"); | |
| 33 | |
| 34 ctx1.globalAlpha = 0.502; | |
| 35 ctx1.fillStyle = "#FF0000"; | |
| 36 ctx1.fillRect(0, 0, 10, 10); | |
| 37 | |
| 38 var data1 = ctx1.getImageData(0,0,1,1).data; | |
| 39 isDeeply(data1, [255, 0, 0, 128], "expected half-transparent red canvas 1"); | |
| 40 | |
| 41 // half-transparent red 10x10 square | |
| 42 var imgData = ctx1.createImageData(10, 10); | |
| 43 var rgba = [ 255, 0, 0, 128 ]; | |
| 44 for (i = 0; i < 50; ++i) { | |
| 45 for (j = 0; j < 4; ++j) { | |
| 46 imgData.data[(i * 4) + j] = rgba[j]; | |
| 47 } | |
| 48 } | |
| 49 | |
| 50 var canvas2 = document.getElementById("canvas2"); | |
| 51 var ctx2 = canvas2.getContext("2d"); | |
| 52 ctx2.putImageData(imgData, 0, 0); | |
| 53 | |
| 54 var data2 = ctx2.getImageData(0,0,1,1).data; | |
| 55 isDeeply(data2, [255, 0, 0, 128], "expected half-transparent red canvas 2"); | |
| 56 | |
| 57 SimpleTest.finish(); | |
| 58 } | |
| 59 | |
| 60 addLoadEvent(test); | |
| 61 | |
| 62 </script> | |
| 63 </pre> | |
| 64 </body> | |
| 65 </html> |
