Bug 128256

Summary:

[iOS] TileController should not rely on TileCache zooming mode for tile scale multiplier

Product:

WebKit

Reporter:

Pratik Solanki <psolanki>

Component:

WebCore Misc.

Assignee:

Pratik Solanki <psolanki>

Status:

NEW ---

Severity:

Normal

CC:

commit-queue, esprehn+autocc, glenn, koivisto, kondapallykalyan, psolanki, simon.fraser

Priority:

Keywords:

InRadar

Version:

528+ (Nightly build)

Hardware:

Unspecified

OS:

Unspecified

Attachments:

Description	Flags
Patch	none

Description Pratik Solanki 2014-02-05 10:10:08 PST

The Zooming tiling mode in TileCache is not always accurate. UIKit sets it to Zooming even in cases when it does a pan instead of a zoom. In such situations we can end up with blurry tiles created with 0.125 scale factor. See RenderLayerCompositor::contentsScaleMultiplierForNewTiles().

Comment 1 Pratik Solanki 2014-02-05 10:10:31 PST

<rdar://problem/15751219>

Comment 2 Pratik Solanki 2014-02-05 10:30:29 PST

Created attachment 223247 [details]
Patch

Comment 3 Pratik Solanki 2014-02-05 11:23:54 PST

Comment on attachment 223247 [details]
Patch

Retracting patch. This needs to be fixed in a better way than having a flag on TileCache.