[Webkit-unassigned] [Bug 19243] New: [CAIRO] Masker in SVG
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Sun May 25 03:21:55 PDT 2008
http://bugs.webkit.org/show_bug.cgi?id=19243
Summary: [CAIRO] Masker in SVG
Product: WebKit
Version: 526+ (Nightly build)
Platform: PC
OS/Version: All
Status: NEW
Keywords: Cairo
Severity: Normal
Priority: P2
Component: SVG
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: vbs85 at gmx.de
The masking-support is missing in Cairo/SVG. I made a basic implementation but
run in to some problems.
The cairo-masking support ignores RGB and only looks to the alpha-channel. So
you have to transform the mask-surface first.
After (or before) that you insert the masked object to the context and mask it
with the transformed mask-surface.
Cg seems to do it a bit different because the masked object is drawn above the
mask (the image seems to be given to context AFTER the mask is applied).
How can I get the masked object in SVGResourceMaskerCairo.cpp and avoid WebKit
to draw the image after the mask was applied?
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