| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="../../resources/js-test.js"></script> |
| <script src="../../resources/ui-helper.js"></script> |
| <script> |
| jsTestIsAsync = true; |
| addEventListener("load", async () => { |
| await document.fonts.load("16px Ahem"); |
| |
| for (let i = 0; i < 3; ++i) |
| await paintIntoCanvas(); |
| |
| await paintIntoCanvas(document.getElementById("final-target")); |
| |
| testPassed("Done painting"); |
| finishJSTest(); |
| }); |
| |
| async function paintIntoCanvas(target) { |
| let canvas = target || document.createElement("canvas"); |
| let context = canvas.getContext("2d"); |
| |
| context.font = "16px Ahem"; |
| context.strokeText("Hello world", 10, 10); |
| context.strokeText("Hello world", 20, 20); |
| |
| for (let i = 0; i < 5; ++i) |
| await UIHelper.renderingUpdate(); |
| |
| delete context; |
| delete canvas; |
| gc(); |
| } |
| |
| function gc() { |
| if (window.GCController) |
| return GCController.collect(); |
| |
| let strings = []; |
| for (let i = 0; i < 1000000; ++i) |
| strings.push(new String(i)); |
| } |
| </script> |
| <style> |
| @font-face { |
| font-family: Ahem; |
| src: url("../../resources/Ahem.ttf"); |
| } |
| |
| canvas { |
| width: 400px; |
| height: 400px; |
| margin-top: 0; |
| } |
| </style> |
| </head> |
| <body> |
| <canvas width="400" height="400" id="final-target"></canvas> |
| </body> |
| </html> |
