Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: aff02c3a8c4fc6796010260190efaf9a69690bde
      
https://github.com/WebKit/WebKit/commit/aff02c3a8c4fc6796010260190efaf9a69690bde
  Author: Carlos Bentzen <cadubent...@igalia.com>
  Date:   2024-04-02 (Tue, 02 Apr 2024)

  Changed paths:
    M Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp

  Log Message:
  -----------
  [GTK] Video alpha channel doesn't work
https://bugs.webkit.org/show_bug.cgi?id=233955

Reviewed by Miguel Gomez.

Set the ShouldBlend and ShouldPremultiply flags for the texture mapper when
pushing dma-buf video frames with alpha channel. This replicates what is done
for the GSTREAMER_GL code path in 238313@main.

Covered by media/video-with-alpha.html and manually tested with
https://zipdox.net/alphawebm/.

* Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp:
(WebCore::MediaPlayerPrivateGStreamer::pushDMABufToCompositor):

Canonical link: https://commits.webkit.org/276936@main



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