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| 1 <!doctype html> |
| 2 <title>posting an imagedata (from a cloned canvas) in an array</title> |
| 3 <script src="/resources/testharness.js"></script> |
| 4 <script src="/resources/testharnessreport.js"></script> |
| 5 <div id="log"></div> |
| 6 <script> |
| 7 async_test(function() { |
| 8 |
| 9 var canvas = document.createElement('canvas'); |
| 10 var clone = canvas.cloneNode(true); |
| 11 var ctx = clone.getContext('2d'); |
| 12 var imagedata = ctx.getImageData(0, 0, 300, 150); |
| 13 postMessage([imagedata], '*', []); |
| 14 |
| 15 onmessage = this.step_func(function(e) { |
| 16 function processPixels(imagedata) { |
| 17 var pixeldata = imagedata.data; |
| 18 for (var i = 0; i < pixeldata.length; i = i+4) { |
| 19 pixeldata[i] = 128; |
| 20 assert_equals(pixeldata[i], 128); |
| 21 } |
| 22 } |
| 23 processPixels(e.data[0]); |
| 24 this.done(); |
| 25 }); |
| 26 |
| 27 }); |
| 28 </script> |
| 29 |
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