Brent, In my platform, all the hack as you metioned are valueless.
Bad news to me. Now, i only have a clue on cario for the scroll problem. Thanks -xiong On Mon, Mar 30, 2009 at 10:02 AM, xiong <[email protected]> wrote: > Brent, > > I just start to resolve the problem. > > The "debug build" and "background color" hack you mentioned, i also > need time to try. > > Please wait a reply. > > I hope the member in the mail-list to join in the work, when see the > subject if you have the same symptom. > > Thanks. > > -Xiong > > > On Fri, Mar 27, 2009 at 1:54 PM, Brent Fulgham <[email protected]> wrote: > >> Xiong, >> I'm sorry you are encountering the problem, but I must admit I am glad >> someone else is seeing this issue as now we can pool our efforts to resolve >> it. >> >> Since you are using directfb stuff, and I am on top of Windows, it seems >> the culprit is somewhere in the Cairo logic. Perhaps the dirty regions are >> not being computed properly (I have encountered a few places where the >> coordinate systems in Cairo and Windows don't agree). >> >> However, the kludge of setting a background color (does this work for you >> as well?) does not fit into the 'bad coordinate' theory, as I don't see how >> the presence of a background color in the rendering instructions would >> affect this. >> >> The fact that it does not happen for me in Debug builds makes me wonder if >> maybe there is some kind of improper initialization or buffer overrun that >> is involved. >> >> -Brent >> >> >> On Mar 26, 2009, at 10:48 PM, xiong wrote: >> >> Webkit r40777 Release builds for me. >> >> On Fri, Mar 27, 2009 at 1:25 PM, Brent Fulgham <[email protected]>wrote: >> >>> I wonder if your issue is related to one I documented on Windows (using >>> Cairo backend) a few months ago. Currently this only happens for me in >>> Release builds, but it's still quite annoying. >>> >>> https://bugs.webkit.org/show_bug.cgi?id=22891 >>> >>> I attached a few images in my bug for comparison. >>> >>> The easiest way to reproduce is to go to the http://planet.webkit.organd >>> try to scroll up/down the page using the scroll bar. After a short >>> while you will find areas of the page not rendered. >>> >>> Thanks, >>> >>> -Brent >>> >>> >>> On Mar 26, 2009, at 9:54 PM, browserwk wrote: >>> >>> Dear all: >>>> >>>> I am able to run webkit over directfb backend on arm platform - using >>>> GtkLauncher . >>>> >>>> The problem I face is that when I open >>>> http://www.google.com/intl/en/privacy.html using this browser and >>>> scroll >>>> the page; it results the visual area is not updated when scrolling, and >>>> the screen display confusion. >>>> >>>> Any ideas where to look to fix this issue ? >>>> >>>> Appreciate any clues~ >>>> >>>> FYI: >>>> [Following address are the screenshots] >>>> >>>> Render OK when not scroll: >>>> >>>> http://picasaweb.google.com/lh/photo/ybhIcahTEgsfBmMzXM13-g?feat=directlink >>>> >>>> Render error when scroll: >>>> >>>> http://picasaweb.google.com/lh/photo/0B8fi1ZTZ7hWH0S86a5RJA?feat=directlink >>>> >>>> http://picasaweb.google.com/lh/photo/_ScHyJBOmJ8-xbRB_aZ2NQ?feat=directlink >>>> >>>> http://picasaweb.google.com/lh/photo/Ael-gWdHEVnEtu_qbMFOZw?feat=directlink >>>> >>>> BTW: >>>> I am using following version of packages and running DirectFB without >>>> any acceleration on my embeded target. >>>> WebKit-r40777 >>>> gtk+-2.12.12 >>>> cairo-1.4.14 >>>> DirectFB-1.2.6 >>>> >>>> Thanks. >>>> >>>> -xiong >>>> _______________________________________________ >>>> webkit-dev mailing list >>>> [email protected] >>>> http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev >>>> >>> >>> >> >> >
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