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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 | |
piman
2013/01/08 00:04:17
Can we force layout here to ensure we don't depend
ccameron
2013/01/08 00:41:24
James said the incantation is
document.body.offset
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41 // Signal back to the test runner that we're done allocating memory. | |
42 domAutomationController.send("DONE"); | |
43 } | |
44 </script> | |
45 </head> | |
46 <body> | |
47 <div id="blocks" class="perspective"/> | |
48 </body> | |
49 </html> | |
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