RESOLVED FIXED 138448
Avoid backing store for opacity:0 descendant layers 
https://bugs.webkit.org/show_bug.cgi?id=138448
Summary Avoid backing store for opacity:0 descendant layers
Simon Fraser (smfr)
Reported 2014-11-05 18:06:46 PST
Avoid backing store for opacity:0 descendant layers
Attachments
Patch (9.57 KB, patch)
2014-11-05 18:08 PST, Simon Fraser (smfr) 		dino: review+
DetailsFormatted DiffDiff
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Simon Fraser (smfr)
Comment 1 2014-11-05 18:08:35 PST
Created attachment 241079 [details] Patch
Dean Jackson
Comment 2 2014-11-05 18:14:59 PST
Comment on attachment 241079 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=241079&action=review > Source/WebCore/rendering/RenderLayerCompositor.cpp:885 > + if (!oldStyle.opacity() != !newStyle.opacity()) { This is confuserating, but it makes sense after I thought about it for a while. > LayoutTests/compositing/backing/toggle-opacity-0-child-expected.txt:1 > +FAIL: Timed out waiting for notifyDone to be called WAT > LayoutTests/compositing/backing/toggle-opacity-0-child.html:74 > + <div id="child" class="child box"> child is both id and class. you could have used querySelector instead of getElementById
Simon Fraser (smfr)
Comment 3 2014-11-05 18:22:16 PST
https://trac.webkit.org/r175656 rdar://problem/18869336
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