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dawn / dawn / 5c36eda233b37810c8ca6ad00ad0300b0f821890
commit5c36eda233b37810c8ca6ad00ad0300b0f821890[log] [tgz]
authorShrek Shao <shrekshao@google.com>Tue May 20 08:56:21 2025 -0700
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue May 20 08:56:21 2025 -0700
tree433cb228db771d67a9f7baabf38ce68de26df63d
parentf5e3f0e0fbed040ffc2cf48120d458e70e68d56e [diff]
[WebGPU backend] Add PhysicalDeviceWGPU

Add more implementation for PhysicalDeviceWGPU.

Instance::EnumerateAdapters is not exposed in DawnProcTable.
So use wgpuInstanceRequestAdapter and pass down the
RequestAdapterOptions in BackendWGPU to create one
innerAdapter for now.

PhysicalDeviceWGPU owns this innerAdapter to make webgpu calls
and query capabilities.

Also add an extension chained struct for RequestAdapterOptions
to indicate whether to select WebGPU backend or not,
besieds the WGPUBackendType, to avoid infinite recursion in
EnumerateAdapters.

This struct can also contain an entrypoint for the proc table
in the future.

Bug: 413053623
Change-Id: Ia85aa1de579bfaee1dc198f31b1916ac7011bbe1
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/241854
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Shrek Shao <shrekshao@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
11 files changed
tree: 433cb228db771d67a9f7baabf38ce68de26df63d
  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.