Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: f0109a1cfaae333c56ef9f5c93b3bc75b0fb9b3e
https://github.com/WebKit/WebKit/commit/f0109a1cfaae333c56ef9f5c93b3bc75b0fb9b3e
Author: Matthew Finkel <[email protected]>
Date: 2023-05-10 (Wed, 10 May 2023)
Changed paths:
M Source/WebCore/html/CanvasBase.cpp
Log Message:
-----------
Put post-processed pixel buffer at correct location
https://bugs.webkit.org/show_bug.cgi?id=256563
rdar://109124810
Reviewed by Kimmo Kinnunen.
The call to ImageBuffer::putPixelBuffer may put the buffer at the wrong
location in the backend buffer if m_postProcessDirtyRect has a location at a
negative offset. This can happen, for example, if fillText draws outside the
bounds of the canvas. Therefore in this change we clip the dirty rect to
the bounds of the canvas, and we use the rect's location as the offset value.
* Source/WebCore/html/CanvasBase.cpp:
(WebCore::CanvasBase::postProcessDirtyCanvasBuffer const):
Canonical link: https://commits.webkit.org/263939@main
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