[webkit-changes] [WebKit/WebKit] 580727: REGRESSION(284617 at main): Assertion fires when rend...

[Said Abou-Hallawa]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 58072722f0cc4d05a2ce381152be2e44b891f117
      https://github.com/WebKit/WebKit/commit/58072722f0cc4d05a2ce381152be2e44b891f117
  Author: Said Abou-Hallawa <said at apple.com>
  Date:   2024-10-07 (Mon, 07 Oct 2024)

  Changed paths:
    M Source/WebCore/platform/graphics/cg/GraphicsContextCG.cpp

  Log Message:
  -----------
  REGRESSION(284617 at main): Assertion fires when rendering an HDR image is partially displayed
https://bugs.webkit.org/show_bug.cgi?id=281003
rdar://137402152

Reviewed by Mike Wyrzykowski.

In GraphicsContextCG::drawNativeImageInternal(), the state of CGContext may not
been saved before setting the headroom to the headroom of a CGImage.

In this case we need to explicitly restore the old headroom to CGContext before
exiting this function.

* Source/WebCore/platform/graphics/cg/GraphicsContextCG.cpp:
(WebCore::GraphicsContextCG::drawNativeImageInternal):

Canonical link: https://commits.webkit.org/284798@main



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