| <!DOCTYPE html> |
| <html> |
| <head> |
| <style> |
| canvas { |
| width: 100px; |
| height: 100px; |
| background-color: red; |
| } |
| </style> |
| </head> |
| <body> |
| <p>This test requires Internals.</p> |
| <canvas id="canvas1"></canvas> |
| <canvas id="canvas2"></canvas> |
| <script> |
| function run() { |
| if (!window.testRunner) |
| return; |
| |
| window.testRunner.dumpAsText(); |
| |
| const MAX_WIDTH = 2000; |
| const MAX_HEIGHT = MAX_WIDTH; |
| |
| window.internals.setMaxCanvasPixelMemory(MAX_WIDTH * MAX_HEIGHT * 4); |
| |
| function fillCanvas(id, width, height) { |
| const canvas = document.getElementById(id); |
| canvas.width = width; |
| canvas.height = height; |
| |
| const ctx = canvas.getContext("2d"); |
| if (!ctx) |
| return; |
| |
| ctx.fillStyle = "lime"; |
| ctx.fillRect(0, 0, width, height); |
| } |
| |
| // This one should always work. |
| fillCanvas("canvas2", 10, 10); |
| |
| // And this one should exceed the memory limit. |
| fillCanvas("canvas1", MAX_WIDTH + 1, MAX_HEIGHT + 1); |
| } |
| run(); |
| </script> |
| </body> |
| </html> |
