[Webkit-unassigned] [Bug 43507] Turn ImageBuffer::image/ImageBuffer::imageForRendering to ImageBuffer::image/ImageBuffer::copiedImage

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=43507


Dave Hyatt <hyatt at apple.com> changed:

           What    |Removed                     |Added
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                 CC|                            |hyatt at apple.com




--- Comment #4 from Dave Hyatt <hyatt at apple.com>  2010-08-10 12:28:26 PST ---
I did a very similar patch locally and ended up keeping the caching of the shallow copy and only returning a PassRefPtr for the deep copy.  My concern is whether or not CG is really doing copy-on-write or not.  If they aren't, then removing the cache in the shallow copy case is going to be a perf hit.

Let me ask some CG engineers about it.

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