[Webkit-unassigned] [Bug 7259] Pages in bugzilla scroll slowly when obsolete attachments are present

bugzilla-daemon at opendarwin.org bugzilla-daemon at opendarwin.org
Tue Feb 14 14:22:36 PST 2006


------- Comment #1 from hyatt at apple.com  2006-02-14 14:22 PDT -------
To solve the second problem, we can use this boundingBox concept but also have
a function to get the boundingBox of a layer and all its child layers.  Then
when starting and ending a transparency layer we can set up a clip that is that
bounding box (which I believe will reduce the size of the offscreen buffer
created by CGBeginTransparencyLayer).

Fixing problem 1 will make scrolling performance good again on Bugzilla when
the transparent layers are off screen.

Fixing problem 2 will make the scrolling performance good even when the
transparent layers are on screen.

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