[Webkit-unassigned] [Bug 73228] Synchronization problem in Canvas/WebGLRenderingContext when listener asks for image

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=73228





--- Comment #2 from Dana Jansens <danakj at chromium.org>  2011-11-28 10:44:57 PST ---
This patch: Since the cached image is cleared before notifying people about the change, mark the canvas dirty before also. This
a) keeps them in sync.
b) if a listener requests the image, it will cache the requested version correctly.


An alternate version of this patch would be to clear the cache and mark dirty after notifying listeners.  In b) above, this would throw away the cache and cause extra work in the next request for the image.

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