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dawn / dawn / cef2d173850de97e3b14772ead2faebac223c783
commitcef2d173850de97e3b14772ead2faebac223c783[log] [tgz]
authorBrandon Jones <bajones@chromium.org>Wed Jan 05 18:27:36 2022 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Jan 05 18:27:36 2022 +0000
treea6429e7816cf7660b1c10bfc61dd2ff62e34f3d4
parentd5203664701b8c32fa3fbdaa10586aeca0a32f0c [diff]
Prevent negative error message ranges

If an error message was reported from Tint that had a end line/position
that occurred before the start line/position then the range would have
a negative length, causing the unsigned length to underflow into a very
large value. Also, specifically, if the start line was non-zero but the
end line was zero (indicating no line, and the value ranges are
constructed with by default) the for loop that adds the line offsets
would underflow and cause it to read off the end of the line list.

Clamping the end of the range to always be less than or equal to the
start of the range avoids both of these problems.

Bug: dawn:1245
Change-Id: I780a1f5acc228297cbbea86f33679d00e9153b4c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/75260
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Auto-Submit: Brandon Jones <bajones@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
1 file changed
tree: a6429e7816cf7660b1c10bfc61dd2ff62e34f3d4
  1. .vscode/
  2. build_overrides/
  3. docs/
  4. examples/
  5. generator/
  6. infra/
  7. scripts/
  8. src/
  9. third_party/
  10. tools/
  11. .clang-format
  12. .gitattributes
  13. .gitignore
  14. .gn
  15. AUTHORS
  16. BUILD.gn
  17. CMakeLists.txt
  18. codereview.settings
  19. dawn.json
  20. dawn_wire.json
  21. DEPS
  22. DIR_METADATA
  23. LICENSE
  24. OWNERS
  25. PRESUBMIT.py
  26. README.chromium
  27. README.md
README.md

Dawn's logo: a sun rising behind a stylized mountain inspired by the WebGPU logo. The text Dawn is written below it.

Dawn, a WebGPU implementation

Dawn is an open-source and cross-platform implementation of the work-in-progress WebGPU standard. More precisely it implements webgpu.h that is a one-to-one mapping with the WebGPU IDL. Dawn is meant to be integrated as part of a larger system and is the underlying implementation of WebGPU in Chromium.

Dawn provides several WebGPU building blocks:

  • WebGPU C/C++ headers that applications and other building blocks use.
    • The webgpu.h version that Dawn implements.
    • A C++ wrapper for the webgpu.h.
  • A “native” implementation of WebGPU using platforms' GPU APIs:
    • D3D12 on Windows 10
    • Metal on macOS and iOS
    • Vulkan on Windows, Linux, ChromeOS, Android and Fuchsia
    • OpenGL as best effort where available
  • A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers

Helpful links:

Documentation table of content

Developer documentation:

User documentation: (TODO, figure out what overlaps with the webgpu.h docs)

Status

(TODO)

License

Apache 2.0 Public License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.