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| (Empty) |
| 1 <!DOCTYPE HTML> | |
| 2 <html> | |
| 3 <head> | |
| 4 <title>GPU Memory Test: Use N MB of GPU Memory with 3D CSS</title> | |
| 5 <style> | |
| 6 .block { | |
| 7 background: #FF0000; | |
| 8 font-size: 150px; | |
| 9 height: 512px; | |
| 10 position: absolute; | |
| 11 width: 512px; | |
| 12 | |
| 13 } | |
| 14 .perspective | |
| 15 { | |
| 16 border: 1px solid black; | |
| 17 height: 512px; | |
| 18 text-align: center; | |
| 19 width: 512px; | |
| 20 -webkit-perspective: 600px; | |
| 21 -webkit-perspective-origin: center center; | |
| 22 -webkit-transform-style: preserve-3d; | |
| 23 } | |
| 24 </style> | |
| 25 <script type="text/javascript"> | |
| 26 // Generate n 3D CSS elements that are each about 1 MB in size | |
| 27 function useGpuMemory(mb_to_use) { | |
| 28 n = mb_to_use; | |
| 29 var blocks = document.getElementById("blocks"); | |
| 30 var blockArray = document.getElementsByClassName("block"); | |
| 31 for (var i = 0; i < n; i++) { | |
| 32 var block = document.createElement("div"); | |
| 33 block.className = "block"; | |
| 34 block.style.WebkitTransform = "translate3d(0px, 0px, " + (i-n+1) + "px)"; | |
| 35 block.style.opacity = 0.1; | |
| 36 block.style.background = "#00FF00"; | |
| 37 block.textContent = i; | |
| 38 blocks.appendChild(block); | |
| 39 } | |
| 40 | |
| 41 // Touch offsetTop to trigger a layout. | |
| 42 document.body.offsetTop; | |
| 43 | |
| 44 // Signal back to the test runner that we're done allocating memory. | |
| 45 domAutomationController.send("DONE_USE_GPU_MEMORY"); | |
| 46 } | |
| 47 </script> | |
| 48 </head> | |
| 49 <body> | |
| 50 <div id="blocks" class="perspective"/> | |
| 51 </body> | |
| 52 </html> | |
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