Bug 110379 – Zoomed, slow-scrolling pages keep recreating tiles when scrolled

• Component: New Bugs
• Status: RESOLVED FIXED

[Simon Fraser (smfr)]

Zoomed, slow-scrolling pages keep recreating tiles when scrolled

[Simon Fraser (smfr)]

Created attachment 189374 [details]
Patch

[Simon Fraser (smfr)]

<rdar://problem/12840970>

[Tim Horton]

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.

[Tim Horton]

(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.

[Simon Fraser (smfr)]

https://trac.webkit.org/r143537