Bug 96187

Summary:

Poor tiled image performance on Retina displays

Product:

WebKit

Reporter:

Philip Rogers <pdr>

Component:

Images

Assignee:

Nobody <webkit-unassigned>

Status:

NEW

Severity:

Normal

CC:

andersca, ap, bdakin, simon.fraser

Priority:

Version:

420+

Hardware:

Unspecified

OS:

Unspecified

Attachments:

Description	Flags
Testcase	none

Philip Rogers

Reported 2012-09-08 15:17:16 PDT

Created attachment 162969 [details] Testcase Open the attached testcase and scroll so that at least two "tiles" of the background image are visible. On Chromium, once we hit the Skia's Image::drawPattern codepath we end up AWESOME resampling on every repaint which pretty much hangs the browser. The Safari port performs slightly better but not acceptably so. I originally hit this on an HP website for the Z620 but I imagine this is a common issue.

Attachments
Testcase (153 bytes, text/html) 2012-09-08 15:17 PDT, Philip Rogers	no flags	Details
View All Add attachment proposed patch, testcase, etc.

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