Bug 74025

Summary:	FEDropShadow calls ImageBuffer::putPremultipliedImageData with non-premultiplied pixels
Product:	WebKit	Reporter:	Brian Salomon <bsalomon>
Component:	SVG	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	krit, reed, senorblanco, simon.fraser, thorton, zimmermann
Priority:	P2
Version:	528+ (Nightly build)
Hardware:	All
OS:	All
Bug Depends on:
Bug Blocks:	68469

Description Brian Salomon 2011-12-07 13:47:57 PST

This can be demonstrated by running the svg/dynamic-updates/SVGFEDropShadow* layout tests with an assert that r, g, and b are <= a in an implementation of ImageBuffer::putPremultipliedImageData. 

The call to putPremultipliedImageData is here: http://trac.webkit.org/browser/trunk/Source/WebCore/platform/graphics/filters/FEDropShadow.cpp#L108