Bug 110379 - Zoomed, slow-scrolling pages keep recreating tiles when scrolled
Summary: Zoomed, slow-scrolling pages keep recreating tiles when scrolled
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: New Bugs (show other bugs)
Version: 528+ (Nightly build)
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Simon Fraser (smfr)
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2013-02-20 14:05 PST by Simon Fraser (smfr)
Modified: 2013-02-20 16:51 PST (History)
4 users (show)

See Also:

Attachments
Patch (26.18 KB, patch)
2013-02-20 14:13 PST, Simon Fraser (smfr) 		thorton: review+
Details | Formatted Diff | Diff
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Description Simon Fraser (smfr) 2013-02-20 14:05:15 PST 
Zoomed, slow-scrolling pages keep recreating tiles when scrolled
Comment 1 Simon Fraser (smfr) 2013-02-20 14:13:13 PST 
Created attachment 189374 [details]
Patch
Comment 2 Simon Fraser (smfr) 2013-02-20 14:13:30 PST 
<rdar://problem/12840970>
Comment 3 Tim Horton 2013-02-20 14:16:34 PST 
Comment on attachment 189374 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=189374&action=review

> Source/WebCore/platform/graphics/ca/GraphicsLayerCA.cpp:1624
> +    fprintf(stderr, "tileArea is %f x %f\n", tileArea.width(), tileArea.height());

Nah.

> LayoutTests/ChangeLog:10
> +        This test now just has one tile, rather than four. The apparent issue
> +        with the integral tile cache coverage rect being smaller than the visible rect
> +        is a rounding issue with the tile cache coverage dumping.

This sentence reads strangely.
Comment 4 Tim Horton 2013-02-20 14:26:21 PST 
(In reply to comment #3)
> (From update of attachment 189374 [details])
> View in context: https://bugs.webkit.org/attachment.cgi?id=189374&action=review
> 
> > Source/WebCore/platform/graphics/ca/GraphicsLayerCA.cpp:1624
> > +    fprintf(stderr, "tileArea is %f x %f\n", tileArea.width(), tileArea.height());
> 
> Nah.
> 
> > LayoutTests/ChangeLog:10
> > +        This test now just has one tile, rather than four. The apparent issue
> > +        with the integral tile cache coverage rect being smaller than the visible rect
> > +        is a rounding issue with the tile cache coverage dumping.
> 
> This sentence reads strangely.

Nevermind, I get it on re-reading.
Comment 5 Simon Fraser (smfr) 2013-02-20 16:51:40 PST 
https://trac.webkit.org/r143537