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dawn / dawn / a8c9c74d0132bf592a6cb67a9a99541673cf9db8
commita8c9c74d0132bf592a6cb67a9a99541673cf9db8[log] [tgz]
authorLokbondo Kung <lokokung@google.com>Wed Aug 20 12:58:21 2025 -0700
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Aug 20 12:58:21 2025 -0700
treeee73d8611404f5f7cee29be9959d5d6d22ce7db1
parent621d846546cba2a9ee6bbfc24b14fe0b50d74db5 [diff]
[dawn][native] Refactors ExecutionQueue to be an ApiObject.

- For a while I was avoiding changing the class hierarchy to try to
  keep the ExecutionQueue separate from the Device, but with the
  locking issues, it was too hard to keep it separate and by
  changing it, it becomes a lot easier to manage the callbacks and
  ensure that we take the device lock in places to ensure that we
  don't ever run into lock inversion issues. This also lets us
  introduce a toggle so that we can incrementally implement thread
  safety across different backends.
- Using the new toggle, we revert some of the changes from
  https://dawn-review.googlesource.com/c/dawn/+/252918 for backends
  other than Metal.

Bug: 430401631, 412761228
Include-Ci-Only-Tests: true
Change-Id: I2a0b04287789f42157b44cd48d99d0d988171799
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/251875
Commit-Queue: Loko Kung <lokokung@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Brandon Jones <bajones@chromium.org>
8 files changed
tree: ee73d8611404f5f7cee29be9959d5d6d22ce7db1
  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. WATCHLISTS
  48. 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.