[webkit-changes] [WebKit/WebKit] c66cda: Reduce unsafe buffer usage in WebCore::GraphicsCon...

[geoffreygaren]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: c66cda75a86abab2961a635b504b297e85c8a3c9
      https://github.com/WebKit/WebKit/commit/c66cda75a86abab2961a635b504b297e85c8a3c9
  Author: Geoffrey Garen <ggaren at apple.com>
  Date:   2025-01-15 (Wed, 15 Jan 2025)

  Changed paths:
    M Source/WebCore/platform/graphics/GCGLSpan.h
    M Source/WebCore/platform/graphics/angle/GraphicsContextGLANGLE.cpp

  Log Message:
  -----------
  Reduce unsafe buffer usage in WebCore::GraphicsContextGLANGLE
https://bugs.webkit.org/show_bug.cgi?id=286036
rdar://143004066

Reviewed by Chris Dumez.

* Source/WebCore/platform/graphics/GCGLSpan.h:
(GCGLSpanTuple::span const): Added a span accessor so clients can be bounds safe.

* Source/WebCore/platform/graphics/angle/GraphicsContextGLANGLE.cpp:
(asPointers): Helper function to avoid duplicate code. Uses span now.

(WebCore::GraphicsContextGLANGLE::multiDrawElementsANGLE):
(WebCore::GraphicsContextGLANGLE::multiDrawElementsInstancedANGLE):
(WebCore::GraphicsContextGLANGLE::multiDrawElementsInstancedBaseVertexBaseInstanceANGLE):
Use our new bounds-safe helper function.

Canonical link: https://commits.webkit.org/288987@main



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