Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 3dfb58beb2151d8039d5e56f6ddccddc9cd9d1ce
https://github.com/WebKit/WebKit/commit/3dfb58beb2151d8039d5e56f6ddccddc9cd9d1ce
Author: Myles C. Maxfield <mmaxfi...@apple.com>
Date: 2023-07-18 (Tue, 18 Jul 2023)
Changed paths:
A
LayoutTests/compositing/canvas/accelerated-small-canvas-compositing-expected.txt
A LayoutTests/compositing/canvas/accelerated-small-canvas-compositing.html
A
LayoutTests/platform/gtk/compositing/canvas/accelerated-small-canvas-compositing-expected.txt
A
LayoutTests/platform/ios/compositing/canvas/accelerated-small-canvas-compositing-expected.txt
M Source/WebCore/rendering/RenderLayerCompositor.cpp
Log Message:
-----------
[Cocoa] Small canvases, which aren't supposed to get compositing layers, get
compositing layers if they have a 3D-but-could-be-2D transform
https://bugs.webkit.org/show_bug.cgi?id=259297
rdar://112439265
Reviewed by Simon Fraser.
We already have existing code which will avoid compositing small canvases.
However, if
the small canvas has a 3D-but-could-be-2D transform, we'll composite it
regardless. This
patch extends the current logic to not composite small canvases in this case.
This patch causes a 41% - 48% progression on the Images subtest in MotionMark.
Layers
have cost, y'all.
*
LayoutTests/compositing/canvas/accelerated-small-canvas-compositing-expected.txt
* LayoutTests/compositing/canvas/accelerated-small-canvas-compositing.html
* Source/WebCore/rendering/RenderLayerCompositor.cpp:
(WebCore::RenderLayerCompositor::requiresCompositingForTransform const): This
patch doesn't
modify m_compositingPolicy, because that's global for the whole
RenderLayerCompositor. We
only want to change the policy in this specific case.
Canonical link: https://commits.webkit.org/266135@main
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