test_bug743615.html (2454B)
1 <!DOCTYPE HTML> 2 <html> 3 <!-- 4 https://bugzilla.mozilla.org/show_bug.cgi?id=743615 5 --> 6 <head> 7 <meta charset="utf-8"> 8 <title>Test for Bug 743615</title> 9 <script src="/tests/SimpleTest/SimpleTest.js"></script> 10 <script type="application/javascript" src="utils_bug743615.js"></script> 11 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> 12 </head> 13 <body> 14 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=743615">Mozilla Bug 743615</a> 15 <p id="display"></p> 16 <div id="content" style="display: none"> 17 <canvas id="c" width="200" height="200"><canvas> 18 </div> 19 <pre id="test"> 20 <script type="application/javascript"> 21 22 /** Test for structured cloning ImageData. */ 23 24 SimpleTest.waitForExplicitFinish(); 25 window.addEventListener('message', windowMessage); 26 startTest(); 27 28 function startTest() { 29 // Make an ImageData. 30 var ctx = document.getElementById('c').getContext('2d'); 31 ctx.fillStyle = 'rgb('; 32 ctx.fillRect(30, 30, 50, 50); 33 34 // Make a blank ImageData. 35 var imageData = ctx.createImageData(200, 200); 36 is(imageData.data.length, imageData.width * imageData.height * 4, 37 'right size for data'); 38 39 // Write some things into it. 40 var pattern = makePattern(imageData.data.length, 42, 7); 41 setPattern(imageData, pattern); 42 ok(checkPattern(imageData, pattern), 'Can read it back before sending'); 43 44 // PostMessage it to ourselves. 45 window.postMessage({ imageData, 46 pattern, 47 dataRef: imageData.data }, '*'); 48 } 49 50 function windowMessage(evt) { 51 // Check the pattern we received. 52 var imageData = evt.data.imageData; 53 var pattern = evt.data.pattern; 54 ok(checkPattern(imageData, pattern), 55 'postMessage from self worked correctly'); 56 57 is(imageData.data, evt.data.dataRef, 58 'Should have backrefs for imagedata buffer'); 59 60 // Make a new pattern, and send it to a worker. 61 pattern = makePattern(imageData.data.length, 4, 3); 62 setPattern(imageData, pattern); 63 var worker = new Worker('worker_bug743615.js'); 64 worker.onmessage = workerMessage; 65 worker.postMessage( {imageData, pattern }); 66 } 67 68 function workerMessage(evt) { 69 // Relay the results of the worker-side tests. 70 is(evt.data.statusMessage, 'PASS', evt.data.statusMessage); 71 72 // Test what the worker sent us. 73 ok(checkPattern(evt.data.imageData, evt.data.pattern), 74 'postMessage from worker worked correctly'); 75 76 // All done. 77 SimpleTest.finish(); 78 } 79 80 </script> 81 </pre> 82 </body> 83 </html>