[Webkit-unassigned] [Bug 181277] New: Filter primitive subregion is wrong for processing filters with SourceAlpha or SourceGraphic as input
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Wed Jan 3 20:36:47 PST 2018
https://bugs.webkit.org/show_bug.cgi?id=181277
Bug ID: 181277
Summary: Filter primitive subregion is wrong for processing
filters with SourceAlpha or SourceGraphic as input
Product: WebKit
Version: WebKit Nightly Build
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: SVG
Assignee: webkit-unassigned at lists.webkit.org
Reporter: simon.fraser at apple.com
CC: zimmermann at kde.org
Created attachment 330440
--> https://bugs.webkit.org/attachment.cgi?id=330440&action=review
Testcase
Spec says:
If there are no referenced nodes (e.g., for ‘feImage’ or ‘feTurbulence’), or one or more of the referenced nodes is a standard input (one of SourceGraphic, SourceAlpha, BackgroundImage, BackgroundAlpha, FillPaint or StrokePaint), or for ‘feTile’ (which is special because its principal function is to replicate the referenced node in X and Y and thereby produce a usually larger result), the default subregion is 0%,0%,100%,100%, where as a special-case the percentages are relative to the dimensions of the filter region, thus making the the default filter primitive subregion equal to the filter region.
but we ignore the "one or more of the referenced nodes is a standard input".
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