| <!-- |
| onmessage = function(e) { |
| function processPixels(imagedata) { |
| var pixeldata = imagedata.data; |
| for (var i = 0; i < pixeldata.length; i = i+4) { |
| pixeldata[i] = 128; |
| } |
| postMessage(imagedata); |
| } |
| processPixels(e.data[0]); |
| } |
| |
| /* |
| --> |
| <!doctype html> |
| <title>posting an imagedata (from a cloned canvas) in an array</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <div id="log"></div> |
| <script> |
| (async_test()).step(function() { |
| var worker = new Worker('#'); |
| var canvas = document.createElement('canvas'); |
| var clone = canvas.cloneNode(true); |
| var ctx = clone.getContext('2d'); |
| var imagedata = ctx.getImageData(0, 0, 300, 150); |
| worker.postMessage([imagedata]); |
| worker.onmessage = this.step_func(function(e) { |
| var pixeldata = e.data.data; |
| for (var i = 0; i < pixeldata.length; i++) { |
| assert_equals(pixeldata[i], (i % 4 == 0) ? 128 : 0); |
| } |
| this.done(); |
| }); |
| }); |
| </script> |
| <!-- |
| */ |
| //--> |
