Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 3614ef890007d387d7a8dc9c809eb80d645c275b
https://github.com/WebKit/WebKit/commit/3614ef890007d387d7a8dc9c809eb80d645c275b
Author: Matt Woodrow <[email protected]>
Date: 2023-12-19 (Tue, 19 Dec 2023)
Changed paths:
M Source/WebKit/GPUProcess/graphics/RemoteImageBufferSet.cpp
Log Message:
-----------
Web content renders blank on tab switch.
https://bugs.webkit.org/show_bug.cgi?id=266655
<rdar://119735082>
Reviewed by Simon Fraser.
m_previouslyPaintedRect is used to minimize the copy-forward rect when we know
the new
front buffer is also previous-previous-front-buffer (N-2). In that case we only
need to
copy the pixels drawn last time (into N-1), minus the pixel we're going to draw
this time.
If the buffer is N-2, but it's been purged, then that also needs to skip the
optimization,
so we clear m_previouslyPaintedRect.
* Source/WebKit/GPUProcess/graphics/RemoteImageBufferSet.cpp:
(WebKit::RemoteImageBufferSet::ensureBufferForDisplay):
Canonical link: https://commits.webkit.org/272304@main
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