[Webkit-unassigned] [Bug 148572] [Win][HighDPI] Repaint issues after scrolling.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=148572

--- Comment #7 from peavo at outlook.com ---
(In reply to comment #6)
> There's got to be a better way to do this. What about just adding a pixel to
> each side of the rect?

Yes, I agree that we should find another way :)
I may not understand you correctly, but I don't think the problem is that we haven't invalidated a large enough area. Instead, the problem seems to be that after a few calls to the scroll method, we have blitted the contents to the wrong position, so that when "normal" drawing is performed, there are glitches between the blitted areas and the areas drawn "normally". The reason for this is that repeated conversions from floating point scroll deltas to integer deltas, is accumulating the error from each conversion. Maybe there exists some WebCore methods which will give us the correct deltas in pixels so the blitted areas end up at the correct position?

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.webkit.org/pipermail/webkit-unassigned/attachments/20150910/4866434e/attachment.html>