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dawn/dawn/refs/heads/chromium/7706
commit
50378e135a5a8aeef8c0d43e7dd710b9d93049be
[log]
author
Kai Ninomiya <kainino@chromium.org>
Wed Feb 25 15:15:14 2026 -0800
committer
Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>
Wed Feb 25 15:15:14 2026 -0800
tree
8d118c24847fa2666c9c3d0dca00c425cb6ef6c2
parent
0f9fccca069c124e286b02534a355f4456020984 [diff]
[dawn][metal] Note MTL_CAPTURE_ENABLED in debugging.md

MTLCaptureManager requires MTL_CAPTURE_ENABLED (or a Info.plist entry)
to be enabled. Add a note about this in the documentation for
DAWN_TRACE_FILE_BASE. (It was noted in the original CL description, so
it is the expected behavior.)
https://developer.apple.com/documentation/xcode/capturing-a-metal-workload-programmatically

Note while it would make sense to just always enable this via setenv in
BackendMTL.mm when backend validation is enabled, doing so seems to
break at least the one Shader Validation error I'm currently looking at
(but not sure if it's not running, or the logs just aren't visible).

No-Try: true
Bug: 396072565
Change-Id: I8bdccf672e367a9f56f6a11c805b5e3e90ab3185
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/292675
Reviewed-by: Gregg Tavares <gman@chromium.org>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
1 file changed
tree: 8d118c24847fa2666c9c3d0dca00c425cb6ef6c2
  1. .github/
  2. .vscode/
  3. build_overrides/
  4. docs/
  5. generator/
  6. include/
  7. infra/
  8. scripts/
  9. src/
  10. test/
  11. third_party/
  12. tools/
  13. webgpu-cts/
  14. build
  15. buildtools
  16. testing
  17. .bazelrc
  18. .clang-format
  19. .clang-format-ignore
  20. .clang-tidy
  21. .git-blame-ignore-revs
  22. .gitattributes
  23. .gitignore
  24. .gitmodules
  25. .gn
  26. .style.yapf
  27. .vpython3
  28. AUTHORS
  29. BUILD.bazel
  30. BUILD.gn
  31. CMakeLists.txt
  32. CMakeSettings.json
  33. CODE_OF_CONDUCT.md
  34. codereview.settings
  35. CONTRIBUTING.md
  36. CPPLINT.cfg
  37. DEPS
  38. DIR_METADATA
  39. go.mod
  40. go.sum
  41. go_presubmit_support.py
  42. LICENSE
  43. OWNERS
  44. PRESUBMIT.py
  45. README.chromium
  46. README.md
  47. test_spec_presubmit_support.py
  48. unsafe_buffers_paths.txt
  49. WATCHLISTS
  50. WORKSPACE.bazel
README.md

Build Status Matrix Space

Dawn, a WebGPU implementation

Dawn is an open-source and cross-platform implementation of the 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, Metal, Vulkan and OpenGL. See per API support for more details.
  • A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers
  • Tint is a compiler for the WebGPU Shader Language (WGSL) that can be used in standalone to convert shaders from and to WGSL.

Helpful links:

Documentation table of content

Developer documentation:

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

License

BSD 3-Clause License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.