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dawn/dawn/e2f0828f7c6919dba0521a47c19fc44df88dbadc
commit
e2f0828f7c6919dba0521a47c19fc44df88dbadc
[log]
author
Peter McNeeley <petermcneeley@google.com>
Thu May 07 13:47:50 2026 -0700
committer
dawn-scoped@luci-project-accounts.iam.gserviceaccount.com <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>
Thu May 07 13:47:50 2026 -0700
tree
4935af2647c60c7666cbe6e7ee2b9e33fca16edf
parent
c10a041597f37389749bce59d002464b8e04b3e3 [diff]
[tint] AtomicVec2u (64bit) for DX12 backend

This is the last of the modern APIs to implement vec2u atomics.
Metal and Vulkan have already been completed.

This feature has been determined to work on these farm machines:
D3D12_Radeon_RX_5500_XT (AMD 0x7340 GPU) and
D3D12_Qualcomm_R__Adreno_TM__X1_85_GPU support 64 bit atomics.

Bug: 453689550
Change-Id: I26bb7f87efe10843ff634bf55dfe9f22c9f75119
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/305478
Commit-Queue: Peter McNeeley <petermcneeley@google.com>
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Reviewed-by: James Price <jrprice@google.com>
55 files changed
tree: 4935af2647c60c7666cbe6e7ee2b9e33fca16edf
  1. .github/
  2. .vscode/
  3. agents/
  4. build_overrides/
  5. docs/
  6. generator/
  7. include/
  8. infra/
  9. scripts/
  10. src/
  11. test/
  12. third_party/
  13. tools/
  14. webgpu-cts/
  15. build
  16. buildtools
  17. testing
  18. .bazelrc
  19. .clang-format
  20. .clang-format-ignore
  21. .clang-tidy
  22. .git-blame-ignore-revs
  23. .gitattributes
  24. .gitignore
  25. .gitmodules
  26. .gn
  27. .style.yapf
  28. .vpython3
  29. AUTHORS
  30. BUILD.bazel
  31. BUILD.gn
  32. CMakeLists.txt
  33. CMakeSettings.json
  34. CODE_OF_CONDUCT.md
  35. codereview.settings
  36. CONTRIBUTING.md
  37. CPPLINT.cfg
  38. DEPS
  39. DIR_METADATA
  40. go.mod
  41. go.sum
  42. go_presubmit_support.py
  43. LICENSE
  44. OWNERS
  45. PRESUBMIT.py
  46. README.chromium
  47. README.md
  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.