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dawn/dawn/3fca910cd877d85f8305d8671783b64c2fc54846
commit
3fca910cd877d85f8305d8671783b64c2fc54846
[log]
author
Shrek Shao <shrekshao@google.com>
Tue May 13 14:20:08 2025 -0700
committer
Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>
Tue May 13 14:20:08 2025 -0700
tree
e4638076594e39de9b337eca9f3a7923b7c307c8
parent
34a0cd135af0bab6aae4de006a4e0128139255a0 [diff]
[WebGPU backend] Add BackendWGPU

A Dawn WebGPU backend is an "intermediate" layer
that forwards WebGPU API calls to the wgpu* C API calls
to the underlying "real" backend. Having such a backend
can help us make the developer tool by enabling accessing
to internal states of dawn objects (inspect), serialize
the API calls relative states to disk files (capture)
and deserialize them later to help debug (replay)

This CL is the start of adding such a Dawn WebGPU backend.
It sets up the build config and adds the BackendWGPU.

Bug: 413053623
Change-Id: I4042378d042baa17a7a02649b64fdc6035fcf6ae
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/241814
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Shrek Shao <shrekshao@google.com>
15 files changed
tree: e4638076594e39de9b337eca9f3a7923b7c307c8
  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.