[webkit-changes] [WebKit/WebKit] 0acf00: REGRESSION(270633 at main): [TextureMapper] WinCairo ...

[Fujii Hironori]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 0acf00b6c2d17631da621e3f7554c7e7e5402ba7
      https://github.com/WebKit/WebKit/commit/0acf00b6c2d17631da621e3f7554c7e7e5402ba7
  Author: Fujii Hironori <Hironori.Fujii at sony.com>
  Date:   2023-11-13 (Mon, 13 Nov 2023)

  Changed paths:
    M Source/WebCore/platform/graphics/texmap/TextureMapperTile.cpp

  Log Message:
  -----------
  REGRESSION(270633 at main): [TextureMapper] WinCairo renders transparent layers as black
https://bugs.webkit.org/show_bug.cgi?id=264390

Unreviewed fix of an unintentional change. SupportsAlpha flag should
be on if currentFrameKnownToBeOpaque is NOT true.

* Source/WebCore/platform/graphics/texmap/TextureMapperTile.cpp:
Restored the original logic.

Canonical link: https://commits.webkit.org/270665@main