| <!DOCTYPE html><html> |
| <head> |
| <style> |
| canvas { |
| -webkit-transform: translateZ(0); |
| } |
| </style> |
| <script> |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| |
| function doTest() { |
| var canvases = document.getElementsByTagName("canvas"); |
| for (var i = 0; i < canvases.length; ++i) { |
| var c = canvases[i]; |
| var ctx = c.getContext('2d'); |
| if (!ctx) |
| continue; |
| ctx.fillStyle = 'rgba(255,0,0,1)'; |
| ctx.fillRect(0,0,c.width, c.height); |
| } |
| if (window.testRunner) { |
| document.getElementById('layers').innerText = internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_ACCELERATES_DRAWING); |
| testRunner.notifyDone(); |
| } |
| } |
| |
| window.addEventListener('load', doTest, false); |
| </script> |
| </head> |
| <body> |
| <p>Verifies that 2D canvases with higher than 5120x2880 resolution don't create accelerated backing stores.</p> |
| <canvas id="c1" width="512" height="288"></canvas> |
| <canvas id="c2" width="5120" height="2880"></canvas> |
| <canvas id="c3" width="5200" height="2900"></canvas> |
| <pre id="layers">Layer tree goes here in DRT</pre> |
| </body> |
| </html> |
