[webkit-changes] [WebKit/WebKit] 86c191: [ANGLE] Protect from faulty GPU drivers, reporting...

[Nikolas Zimmermann]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 86c1918fdd79715f17cf6bbf161cdda598882198
      https://github.com/WebKit/WebKit/commit/86c1918fdd79715f17cf6bbf161cdda598882198
  Author: Nikolas Zimmermann <nzimmermann at igalia.com>
  Date:   2024-06-14 (Fri, 14 Jun 2024)

  Changed paths:
    M Source/ThirdParty/ANGLE/changes.diff
    M Source/ThirdParty/ANGLE/src/libANGLE/renderer/gl/FunctionsGL.cpp

  Log Message:
  -----------
  [ANGLE] Protect from faulty GPU drivers, reporting nullptr as GL_EXTENSION string
https://bugs.webkit.org/show_bug.cgi?id=275481

Reviewed by Kimmo Kinnunen and Adrian Perez de Castro.

On a particular i.MX8 board any WebGL demo crashes in ANGLE initialization,
reporting a nullptr instead of a proper null-terminated string, when calling
getStringIFunction(GL_EXTENSIONS, i) in libANGLEs GetIndexExtensions() method
in renderer/gl/FunctionsGL.cpp. Null-check the string before trying to
wrap it in a std::string.

Covered by any WebGL test/demo on a certain i.MX8 board.

* Source/ThirdParty/ANGLE/changes.diff:
* Source/ThirdParty/ANGLE/src/libANGLE/renderer/gl/FunctionsGL.cpp:
(rx::GetIndexedExtensions):

Canonical link: https://commits.webkit.org/280016@main



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