[webkit-changes] [WebKit/WebKit] 98d2c9: REGRESSION (iOS 17): Front and Back Facing Camera ...

[Kimmo Kinnunen]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 98d2c991bb5de85a4291d854df8c19b9ce9cdbd4
      https://github.com/WebKit/WebKit/commit/98d2c991bb5de85a4291d854df8c19b9ce9cdbd4
  Author: Kimmo Kinnunen <kkinnunen at apple.com>
  Date:   2023-12-19 (Tue, 19 Dec 2023)

  Changed paths:
    M Source/WebCore/platform/graphics/cv/GraphicsContextGLCVCocoa.cpp
    M Source/WebCore/platform/graphics/cv/GraphicsContextGLCVCocoa.h

  Log Message:
  -----------
  REGRESSION (iOS 17): Front and Back Facing Camera Stutter
https://bugs.webkit.org/show_bug.cgi?id=265556
rdar://119076271

Reviewed by Youenn Fablet.

Some platforms appear to construct new IOSurface contents on top of
existing IOSurface instance and metadata. Video texture upload was
skipped if the IOSurface object instance pointer and seed matched,
but on some platform it appears that camera produces such new surfaces
with the surface id changing.

Fix by adding surface id to the cache key.

* Source/WebCore/platform/graphics/cv/GraphicsContextGLCVCocoa.cpp:
(WebCore::GraphicsContextGLCVCocoa::copyVideoSampleToTexture):
* Source/WebCore/platform/graphics/cv/GraphicsContextGLCVCocoa.h:

Canonical link: https://commits.webkit.org/272263@main