Populate supported Vulkan limits from the backend

This commit also unifies the initialization process for Adapters.
InitializeImpl() initializes the actual backend adapter.
InitializeSupportedFeaturesImpl() checks base WebGPU features and
discovers additional supported features.
InitializeSupportedLimitsImpl() checks base WebGPU limits and
queries the adapter's maximum supported limits.

Some of these limits from the backend are still overriden in the
frontend because they are limited by internal Dawn constants.

Bug: dawn:685
Change-Id: I43efb0b678dd45f8f89cd62d13104dd00b197da1
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/64980
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Brandon Jones <bajones@chromium.org>
11 files changed
tree: 9712cfdf8ae89d13e35d725c5d24a2152dae9926
  1. .vscode/
  2. build_overrides/
  3. docs/
  4. examples/
  5. generator/
  6. infra/
  7. scripts/
  8. src/
  9. third_party/
  10. tools/
  11. .clang-format
  12. .gitattributes
  13. .gitignore
  14. .gn
  15. AUTHORS
  16. BUILD.gn
  17. CMakeLists.txt
  18. codereview.settings
  19. dawn.json
  20. dawn_wire.json
  21. DEPS
  22. DIR_METADATA
  23. LICENSE
  24. OWNERS
  25. PRESUBMIT.py
  26. README.chromium
  27. README.md
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 on Windows 10
    • Metal on macOS and iOS
    • Vulkan on Windows, Linux, ChromeOS, Android and Fuchsia
    • OpenGL as best effort where available
  • A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers

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.