Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: c898f5980bec15a1702a2ef002a2b7510e7f97d3
https://github.com/WebKit/WebKit/commit/c898f5980bec15a1702a2ef002a2b7510e7f97d3
Author: Fujii Hironori <[email protected]>
Date: 2026-02-06 (Fri, 06 Feb 2026)
Changed paths:
M
Source/WebCore/platform/graphics/texmap/coordinated/CoordinatedBackingStoreProxy.cpp
M
Source/WebCore/platform/graphics/texmap/coordinated/CoordinatedBackingStoreProxy.h
M
Source/WebCore/platform/graphics/texmap/coordinated/CoordinatedPlatformLayer.cpp
Log Message:
-----------
[GTK][WPE][Coordinated Graphics] The combination of damage tracking and async
scrolling causes flickering
https://bugs.webkit.org/show_bug.cgi?id=305441
Reviewed by Carlos Garcia Campos.
The damage tracking tracks the area that is actually drawn, and updates only
the painted area.
If async scrolling scrolled to the area no tiles were covered while the main
thread was busy, new tiles would be created and drawn after the main thread was
unblocked. However, the area was not recorded as the damage area.
Changed CoordinatedPlatformLayer::updateBackingStore() to collect the area
where new tiles are created, and add to the damage area.
Co-authored-by: Pawel Lampe <[email protected]>
*
Source/WebCore/platform/graphics/texmap/coordinated/CoordinatedBackingStoreProxy.cpp:
(WebCore::CoordinatedBackingStoreProxy::updateIfNeeded):
(WebCore::CoordinatedBackingStoreProxy::createOrDestroyTiles):
*
Source/WebCore/platform/graphics/texmap/coordinated/CoordinatedBackingStoreProxy.h:
*
Source/WebCore/platform/graphics/texmap/coordinated/CoordinatedPlatformLayer.cpp:
(WebCore::CoordinatedPlatformLayer::updateBackingStore):
Canonical link: https://commits.webkit.org/306987@main
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