| <html> |
| <body> |
| <canvas id="c1" width="250" height="250"></canvas> |
| <canvas id="c2" width="250" height="250"></canvas> |
| <br> |
| <canvas id="c3" width="250" height="250"></canvas> |
| <canvas id="c4" width="250" height="250"></canvas> |
| <script type="text/javascript"> |
| if (window.testRunner) |
| testRunner.waitUntilDone(); |
| |
| function shouldNotBeCalled() { |
| testFailed("Promise was rejected."); |
| finishJSTest(); |
| } |
| |
| var canvas1 = document.getElementById('c1'); |
| var canvas2 = document.getElementById('c2'); |
| var canvas3 = document.getElementById('c3'); |
| var canvas4 = document.getElementById('c4'); |
| var bgcanvas = document.createElement('canvas'); |
| bgcanvas.width = 100; |
| bgcanvas.height = 100; |
| var bgctx = bgcanvas.getContext('2d'); |
| bgctx.fillStyle = 'green'; |
| bgctx.fillRect(0, 0, bgcanvas.width, bgcanvas.height); |
| var greenSquareURL = bgcanvas.toDataURL(); |
| var img = new Image(); |
| img.onload = imageLoaded; |
| img.src = greenSquareURL; |
| var ctx1 = canvas1.getContext('2d'); |
| var ctx2 = canvas2.getContext('2d'); |
| var ctx3 = canvas3.getContext('2d'); |
| var ctx4 = canvas4.getContext('2d'); |
| |
| function imageLoaded() { |
| createImageBitmap(img).then(imageBitmapCallback(ctx1), shouldNotBeCalled); |
| createImageBitmap(img, -50, -50, 100, 100).then(imageBitmapCallback(ctx2), shouldNotBeCalled); |
| createImageBitmap(img, 50, 50, 100, 100).then(imageBitmapCallback(ctx3), shouldNotBeCalled); |
| createImageBitmap(img, -100, -100, 300, 300).then(imageBitmapCallback(ctx4), shouldNotBeCalled); |
| } |
| |
| var pending = 0; |
| function imageBitmapCallback(ctx) { |
| pending++; |
| var ctx = ctx; |
| return function(imageBitmap) { |
| pending--; |
| ctx.drawImage(imageBitmap, -100, -100, 300, 300, -25, -25, 300, 300); |
| ctx.drawImage(imageBitmap, -100, -100, 200, 200, -25, -25, 100, 100); |
| ctx.drawImage(imageBitmap, 0, -100, 100, 200, 75, -25, 100, 100); |
| ctx.drawImage(imageBitmap, 0, -100, 200, 200, 175, -25, 100, 100); |
| ctx.drawImage(imageBitmap, -100, 0, 200, 100, -25, 75, 100, 100); |
| ctx.drawImage(imageBitmap, 0, 0, 200, 100, 175, 75, 100, 100); |
| ctx.drawImage(imageBitmap, -100, 0, 200, 200, -25, 175, 100, 100); |
| ctx.drawImage(imageBitmap, 0, 0, 100, 200, 75, 175, 100, 100); |
| ctx.drawImage(imageBitmap, 0, 0, 200, 200, 175, 175, 100, 100); |
| if (!pending && window.testRunner) |
| testRunner.notifyDone(); |
| } |
| } |
| |
| </script> |
| </body></html> |
