[webkit-changes] [WebKit/WebKit] 21ef35: [GTK][WPE][Skia] Fix assertion when drawing filter...

[Nikolas Zimmermann]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 21ef355cc6710679bcfd835a458b4e7d1cdb935e
      https://github.com/WebKit/WebKit/commit/21ef355cc6710679bcfd835a458b4e7d1cdb935e
  Author: Nikolas Zimmermann <nzimmermann at igalia.com>
  Date:   2024-10-23 (Wed, 23 Oct 2024)

  Changed paths:
    M Source/WebCore/platform/graphics/displaylists/DisplayListItem.cpp

  Log Message:
  -----------
  [GTK][WPE][Skia] Fix assertion when drawing filters with a zero sourceImage in DisplayList mode
https://bugs.webkit.org/show_bug.cgi?id=281909

Reviewed by Alejandro G. Castro.

applyFilteredImageBufferItem() contains a wrong assertion that a
sourceImageIdentifier must always be present -- however there are
legitimate use-cases in SVG when a sourceImage is a nullptr - handle that.

Covered by existings tests, when using multi-threaded CPU rendering.

* Source/WebCore/platform/graphics/displaylists/DisplayListItem.cpp:
(WebCore::DisplayList::applyFilteredImageBufferItem):

Canonical link: https://commits.webkit.org/285619@main



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