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dawn / dawn / c2cc05ba037a4ea028f15e7fdd8784c58e3ee345
commitc2cc05ba037a4ea028f15e7fdd8784c58e3ee345[log] [tgz]
authorLokbondo Kung <lokokung@google.com>Tue Mar 18 19:17:13 2025 -0700
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue Mar 18 19:17:13 2025 -0700
treea6a8b730f9b5cfd4fe4c55d4aff173211a232f3e
parentfa58832352fb737cc5f0975dd1fd01f4a1e6e103 [diff]
[dawn][headers] Update default values generated in headers.

- For enums with an explicit "undefined" value, that should
  be the default for the struct in the header instead of the
  "default_value" from dawn.json. The "default_value" from
  dawn.json should only be applied when calling
  `WithTrivialFrontendDefaults`.
- Updates RequestAdapterOptions to use
  WithTrivialFrontendDefaults where applicable.
- Updates some TextureDescriptor usages to use
  WithTrivialFrontendDefaults where applicable.
- Adds Undefined for PresentMode, and handling of it. Note
  that this required adding some switch cases for C++, but
  maybe we shouldn't bother generating the Undefined enum
  in C++ all together? Will follow up with another change
  depending on decisions.
- Updates defaults in dawn.json to match upstream.

Bug: 402498095
Change-Id: I8fd5b5b9620f35652b8c38ec145972740a8ad5b8
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/230315
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
17 files changed
tree: a6a8b730f9b5cfd4fe4c55d4aff173211a232f3e
  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-tidy
  20. .git-blame-ignore-revs
  21. .gitattributes
  22. .gitignore
  23. .gitmodules
  24. .gn
  25. AUTHORS
  26. BUILD.bazel
  27. BUILD.gn
  28. CMakeLists.txt
  29. CMakeSettings.json
  30. CODE_OF_CONDUCT.md
  31. codereview.settings
  32. CONTRIBUTING.md
  33. CPPLINT.cfg
  34. DEPS
  35. DIR_METADATA
  36. go.mod
  37. go.sum
  38. go_presubmit_support.py
  39. LICENSE
  40. OWNERS
  41. PRESUBMIT.py
  42. README.chromium
  43. README.md
  44. WATCHLISTS
  45. 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.