[Webkit-unassigned] [Bug 36883] [Qt] Parallel painting in WebKit

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=36883


Zoltan Herczeg <zherczeg at webkit.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #52634|0                           |1
        is obsolete|                            |
  Attachment #53162|                            |review?
               Flag|                            |




--- Comment #6 from Zoltan Herczeg <zherczeg at webkit.org>  2010-04-12 07:02:12 PST ---
Created an attachment (id=53162)
 --> (https://bugs.webkit.org/attachment.cgi?id=53162)
fourth patch

Phew, this patch has been grown to quite big! (120k now) Now it covers most of
the GraphicsContext, and works well with the majority of the pages, even with
svg drawings. I put an r? to get some feedback from the reviewers, not because
it is a finished patch.

My current blocker is the RenderTheme: it turned out not only the
GraphicsContext draws to the screen. Unfortunately the RenderTheme object is
far more platform dependent than GraphicsContext. QPicture might be a useful
workaround here, but it will be Qt specific. The RenderFrame base class is
heavily dependent from RenderObject, RenderStyle and Element pointers, and
would not worth to clone them for a thread. I don't see any platform
independent solution here :( I would appreciate any suggestion!

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