| <!DOCTYPE html><!-- webkit-test-runner [ OffscreenCanvasEnabled=true ] --> |
| <head> |
| <script src="../../resources/ui-helper.js"></script> |
| </head> |
| <body style="margin:0"> |
| <canvas id="c" style="background-color: red; image-rendering: crisp-edges;"></canvas> |
| <script> |
| if (window.testRunner) |
| testRunner.waitUntilDone(); |
| async function runTest() { |
| const offscreen = c.transferControlToOffscreen(); |
| let ctx = offscreen.getContext('2d'); |
| ctx.fillStyle = "lime"; |
| ctx.fillRect(0, 75, 150, 150); |
| ctx.fillStyle = "yellow"; |
| ctx.fillRect(150, 0, 300, 75); |
| await UIHelper.renderingUpdate(); |
| await UIHelper.renderingUpdate(); |
| c.style.visibilty = "hidden"; |
| await UIHelper.renderingUpdate(); |
| await UIHelper.renderingUpdate(); |
| c.style.visibility = ""; |
| await UIHelper.renderingUpdate(); |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| } |
| runTest(); |
| </script> |
| </body> |
