Apart from double buffering, update buffers go through several message queues, and get copied in between. This is unnecessary.
Created attachment 123658 [details] Patch
Created attachment 123660 [details] Patch
Comment on attachment 123660 [details] Patch Nice!
Comment on attachment 123660 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=123660&action=review > Source/WebKit2/WebProcess/WebPage/TiledBackingStoreRemoteTile.cpp:92 > + bitmap->swizzleRGB(); It's difficult to follow which format is used where, could you add a comment here saying from which to which you are converting?
Created attachment 123723 [details] Patch Added comments as per Jocelyn's request.
Comment on attachment 123723 [details] Patch Rejecting attachment 123723 [details] from commit-queue. Failed to run "['/mnt/git/webkit-commit-queue/Tools/Scripts/webkit-patch', '--status-host=queues.webkit.org', '-..." exit_code: 1 NOBODY Kenneth Rohde Christiansen found in /mnt/git/webkit-commit-queue/Source/WebKit2/ChangeLog does not appear to be a valid reviewer according to committers.py. ERROR: /mnt/git/webkit-commit-queue/Source/WebKit2/ChangeLog neither lists a valid reviewer nor contains the string "Unreviewed" or "Rubber stamp" (case insensitive). Full output: http://queues.webkit.org/results/11335374
Created attachment 123725 [details] Patch
Comment on attachment 123725 [details] Patch Clearing flags on attachment: 123725 Committed r105737: <http://trac.webkit.org/changeset/105737>
All reviewed patches have been landed. Closing bug.