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| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <!-- DO NOT EDIT! This test has been generated by tools/gentest.py. --> |
| 3 <title>OffscreenCanvas test: 2d.imageData.put.unchanged</title> |
| 4 <script src="/resources/testharness.js"></script> |
| 5 <script src="/resources/testharnessreport.js"></script> |
| 6 <script src="/common/canvas-tests.js"></script> |
| 7 |
| 8 <h1>2d.imageData.put.unchanged</h1> |
| 9 <p class="desc">putImageData(getImageData(...), ...) has no effect</p> |
| 10 |
| 11 |
| 12 <script> |
| 13 var t = async_test("putImageData(getImageData(...), ...) has no effect"); |
| 14 t.step(function() { |
| 15 |
| 16 var offscreenCanvas = new OffscreenCanvas(100, 50); |
| 17 var ctx = offscreenCanvas.getContext('2d'); |
| 18 |
| 19 var i = 0; |
| 20 for (var y = 0; y < 16; ++y) { |
| 21 for (var x = 0; x < 16; ++x, ++i) { |
| 22 ctx.fillStyle = 'rgba(' + i + ',' + (Math.floor(i*1.5) % 256) + ',' + (M
ath.floor(i*23.3) % 256) + ',' + (i/256) + ')'; |
| 23 ctx.fillRect(x, y, 1, 1); |
| 24 } |
| 25 } |
| 26 var imgdata1 = ctx.getImageData(0.1, 0.2, 15.8, 15.9); |
| 27 var olddata = []; |
| 28 for (var i = 0; i < imgdata1.data.length; ++i) |
| 29 olddata[i] = imgdata1.data[i]; |
| 30 ctx.putImageData(imgdata1, 0.1, 0.2); |
| 31 var imgdata2 = ctx.getImageData(0.1, 0.2, 15.8, 15.9); |
| 32 for (var i = 0; i < imgdata2.data.length; ++i) { |
| 33 _assertSame(olddata[i], imgdata2.data[i], "olddata[\""+(i)+"\"]", "imgdata2.
data[\""+(i)+"\"]"); |
| 34 } |
| 35 |
| 36 t.done(); |
| 37 |
| 38 }); |
| 39 </script> |
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Chromium Code Reviews
Issue 2550713004:
Import wpt@5915964199b07226bf6d8fbb177a63b1f272907a (Closed)
