[webkit-changes] [WebKit/WebKit] 08a362: mix-blend-mode stop working on a fixed layer if re...

[Simon Fraser]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 08a3623d456b76c16483a4b13c4d18eb1227d69b
      https://github.com/WebKit/WebKit/commit/08a3623d456b76c16483a4b13c4d18eb1227d69b
  Author: Simon Fraser <simon.fraser at apple.com>
  Date:   2024-09-24 (Tue, 24 Sep 2024)

  Changed paths:
    A LayoutTests/compositing/blend-mode/tiled-to-non-tiled-with-blend-mode-expected.html
    A LayoutTests/compositing/blend-mode/tiled-to-non-tiled-with-blend-mode.html
    M Source/WebCore/platform/graphics/ca/GraphicsLayerCA.cpp

  Log Message:
  -----------
  mix-blend-mode stop working on a fixed layer if resolution is too large
https://bugs.webkit.org/show_bug.cgi?id=250828
rdar://104686540

Reviewed by Matt Woodrow.

When a composited layer goes between tiled and non-tiled mode, it would lose its blend mode.

Fix by adding `BlendModeChanged` to the list of dirty bits for things we update when the tiling
mode changes.

* LayoutTests/compositing/blend-mode/tiled-to-non-tiled-with-blend-mode-expected.html: Added.
* LayoutTests/compositing/blend-mode/tiled-to-non-tiled-with-blend-mode.html: Added.
* Source/WebCore/platform/graphics/ca/GraphicsLayerCA.cpp:
(WebCore::GraphicsLayerCA::changeLayerTypeTo):

Canonical link: https://commits.webkit.org/284163@main



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