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dawn / dawn / 7ca82ac4d0ed20a8371de408e4e7ec83e59cf431
commit7ca82ac4d0ed20a8371de408e4e7ec83e59cf431[log] [tgz]
authorZhaoming Jiang <zhaoming.jiang@intel.com>Thu Sep 08 00:11:04 2022 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Sep 08 00:11:04 2022 +0000
treec0cacc97e1d7a32a6aece45a4b2d327d2c8a28f1
parentf9eeed61067764fb78f63a106dbda4e6a47e5787 [diff]
dawn: Refactor device creation and add shader-f16 feature

This CL modifies the way adapter creating devices, adds `shader-f16`
feature, and deprecates the `dawn-shader-float16` feature which is no
longer used.
Details:
1. Parse the toggles chained with device descriptor in
`adapter::CreateDeviceInternal`, which are then used to validate
features requirement within `CreateDeviceInternal` and passed to device
constructor as initializer.
2. When creating device, validate features requirement in
`CreateDeviceInternal` with toggles known, make sure to fail the device
creation if a required feature is not supported by adapter or is guarded
by certain toggles which were not enabled/disabled. Feature ShaderF16
and ChromiumExperimentalDp4a are validated in this way. Unittest is
added to check creating devices with toggles-guarded features required.
3. Add `shader-f16` feature, which allow `using f16;` in WGSL code.
End-to-end tests are added to test a trival f16 WGSL shader could be
used if and only if the device has `shader-f16` feature.
4. Deprecate the `dawn-shader-float16` feature, which will be completely
removed after cleaning up Blink code.

Bug: dawn:1510
Change-Id: I6cb2dcbe1ee584fdd6131c62df1ee850b881dbd2
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/100802
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
44 files changed
tree: c0cacc97e1d7a32a6aece45a4b2d327d2c8a28f1
  1. .vscode/
  2. build_overrides/
  3. docs/
  4. generator/
  5. include/
  6. infra/
  7. scripts/
  8. src/
  9. test/
  10. third_party/
  11. tools/
  12. webgpu-cts/
  13. .clang-format
  14. .clang-tidy
  15. .gitattributes
  16. .gitignore
  17. .gn
  18. AUTHORS
  19. BUILD.gn
  20. CMakeLists.txt
  21. CMakeSettings.json
  22. CODE_OF_CONDUCT.md
  23. codereview.settings
  24. CONTRIBUTING.md
  25. CPPLINT.cfg
  26. dawn.json
  27. dawn_wire.json
  28. DEPS
  29. DIR_METADATA
  30. Doxyfile
  31. go.mod
  32. go.sum
  33. go_presubmit_support.py
  34. LICENSE
  35. OWNERS
  36. PRESUBMIT.py
  37. README.chromium
  38. README.md
  39. tint_overrides_with_defaults.gni
README.md

Dawn's logo: a sun rising behind a stylized mountain inspired by the WebGPU logo. The text Dawn is written below it.

Dawn, a WebGPU implementation

Dawn is an open-source and cross-platform implementation of the work-in-progress 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)

Status

(TODO)

License

Apache 2.0 Public License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.