| <!DOCTYPE HTML> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script> |
| function getCanvasDataFromDrawImage(source, disableSmoothing) |
| { |
| var canvas = document.createElement("canvas"); |
| canvas.width = 100; |
| canvas.height = 100; |
| var ctx = canvas.getContext("2d"); |
| ctx.clearRect(0, 0, canvas.width, canvas.height); |
| ctx.scale(0.9, 0.9); |
| ctx.rotate(45 * Math.PI / 180); |
| if (disableSmoothing) |
| ctx.imageSmoothingEnabled = false; |
| ctx.drawImage(source, 0, 0, source.width, source.height, 0, 0, 100, 100); |
| var d = ctx.getImageData(0, 0, 100, 100).data; |
| return d; |
| } |
| |
| test(function() { |
| var canvas = document.createElement('canvas'); |
| canvas.height = 100; |
| canvas.width = 100; |
| var ctx = canvas.getContext('2d'); |
| ctx.fillStyle = '#FF0000'; |
| ctx.fillRect(0, 0, canvas.width, canvas.height); |
| var data1 = getCanvasDataFromDrawImage(canvas, false); |
| var data2 = getCanvasDataFromDrawImage(canvas, true); |
| assert_array_equals(data1, data2, "drawImage() should have the same results with imageSmoothingEnabled = true and false when scaling down."); |
| }, 'Test drawImage with imageSmoothingEnabled=false and scaling down the source.'); |
| |
| </script> |
