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dawn / dawn / ccc243cd4a3bd33fdb2ae5da97bb7bc13ddf8369
commitccc243cd4a3bd33fdb2ae5da97bb7bc13ddf8369[log] [tgz]
authorKai Ninomiya <kainino@chromium.org>Mon Jan 26 14:01:39 2026 -0800
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Mon Jan 26 14:01:39 2026 -0800
treeb663d4d454dc2fa07cb1b008d7372069a68c3db4
parent361a4f1cf5944012365916a4081238e7f20458ab [diff]
[dawn][metal] ArgBufs: call useResource for all resources in the usage scope

This is required for Metal to manage both residency and hazards for us,
since it can't see what resources are used in the argument buffers.
It's similar to other backends, but a bit simpler because we're still
letting Metal do automatic hazard tracking for us).

Metal Shader Validation catches this issue, so verified this fix using
both Animometer and ComputeBoids, with:
  MTL_SHADER_VALIDATION=1 MTL_SHADER_VALIDATION_REPORT_TO_STDERR=1
and:
  --enable-toggles=metal_use_argument_buffers --enable-backend-validation=full

Fixed: 477317116
Change-Id: I9cab58582ff08d52966ac06ba86df33399d4aa8c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/286136
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
6 files changed
tree: b663d4d454dc2fa07cb1b008d7372069a68c3db4
  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.