Bug 32122

Created attachment 44249 [details] Split out the renderPrivate method to two, one for absolute coords, and one relative to the viewport

style-queue ran check-webkit-style on attachment 44249 [details] without any errors.

Created attachment 44251 [details] Receive invalidate events for areas changed outside the viewport, if ScrollView::setPaintsEntireContents is true

style-queue ran check-webkit-style on attachment 44251 [details] without any errors.

Created attachment 44253 [details] Add tiling to QGraphicsWebView

Comment on attachment 44251 [details] Receive invalidate events for areas changed outside the viewport, if ScrollView::setPaintsEntireContents is true We might want to do this at the frame level instead, removing r?

Benjamin did a simple test (can you upload it Benjamin?) that automatically scrolls on offline webpages. Here are the preliminary results: QWebView (not tiles, xcopyregion): RESULT : Test::benchWebView():"simplest painting": 2.1 msec per iteration (total: 35, iterations: 16) RESULT : Test::benchWebView():"slashdot page": 16 msec per iteration (total: 33, iterations: 2) RESULT : Test::benchWebView():"amazon book page": 12 msec per iteration (total: 24, iterations: 2) RESULT : Test::benchWebView():"wikipedia Qt page": 12 msec per iteration (total: 24, iterations: 2) QGraphicsWebView (no tiling, should fall back to x copy region as it uses GraphicsView infrastructure for scrolling): RESULT : Test::benchGraphicsWebView():"simplest painting": 8.8 msec per iteration (total: 71, iterations: 8) RESULT : Test::benchGraphicsWebView():"slashdot page": 100 msec per iteration (total: 100, iterations: 1) RESULT : Test::benchGraphicsWebView():"amazon book page": 88 msec per iteration (total: 88, iterations: 1) RESULT : Test::benchGraphicsWebView():"wikipedia Qt page": 137 msec per iteration (total: 137, iterations: 1) QGraphicsWebView (with my above tiling patch): RESULT : Test::benchGraphicsWebView():"simplest painting": 2.6 msec per iteration (total: 42, iterations: 16) RESULT : Test::benchGraphicsWebView():"slashdot page": 1.2 msec per iteration (total: 41, iterations: 32) RESULT : Test::benchGraphicsWebView():"amazon book page": 0.71 msec per iteration (total: 23, iterations: 32) RESULT : Test::benchGraphicsWebView():"wikipedia Qt page": 0.84 msec per iteration (total: 27, iterations: 32)

Looks good, r=me

Comment on attachment 44249 [details] Split out the renderPrivate method to two, one for absolute coords, and one relative to the viewport Clearing flags on attachment: 44249 Committed r51698: <http://trac.webkit.org/changeset/51698>

All reviewed patches have been landed. Closing bug.

Reopening, as the bug report has uncommitted patches who are not yet up for review.

Created attachment 44395 [details] Basic benchmark for the scrolling support Basic benchmark used for testing the tiling support on real use cases. A proper benchmark needs to be created for the integration in the source.

Created attachment 44396 [details] Offscreen rendering of the mainframe at the QWebFrame level This patch render the frame offscreen on a pixmap and always paint the pixmap in paint event. The advantage of storing the pixmap at the frame level are: - improve the speed of graphics web view && qweb view - we can avoid completely GraphicsContext in some cases - we can have support for multi-frame This is preliminary work, not meant to be integrated. It does not yet integrate the work of Kenneth

Created attachment 44870 [details] Slides from a presentation about the work

The work for this is going on here: http://gitorious.org/~akoivisto/webkit/anttis-webkit/commits/tile-cache

Work is now proceeding in 35146 as far as I can see. *** This bug has been marked as a duplicate of bug 35146 ***