[webkit-dev] Issue Analysis:48290 [HTML Canvas globalCompositeOperation]

Darin Adler darin at apple.com
Wed Jun 1 10:19:50 PDT 2011

On Jun 1, 2011, at 10:14 AM, Mustafizur Rahaman wrote:

> Therefore, we submitted another patch where we are returning from the canvas code itself if the compositing mode is "highlight".

That’s not a good idea. We should keep looking into the real fix; that kind of hack is unneeded here.

> Similar issue (https://bugs.webkit.org/show_bug.cgi?id=48289 ) we have also seen for "darker"/CompositePlusDarker (not a valid compositing mode any more). Can we also remove this as well?

That’s different. That mode is implemented, so we’d have to be sure it wasn’t used. We can’t remove it just because it’s not in the specification without investigating what content depends on it.

    -- Darin

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