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dawn / dawn / be36fd04659c404c91e9f33138ee805a164b5398
commitbe36fd04659c404c91e9f33138ee805a164b5398[log] [tgz]
authorBrandon Jones <bajones@chromium.org>Tue Mar 25 12:19:02 2025 -0700
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue Mar 25 12:19:02 2025 -0700
tree018e34d446a448bd99a5cb670316e0b0cf18a6b6
parent0cf000cb9e4fec4d32f4d8509d1c3a9cd53e0453 [diff]
[BitSet] Add/update bit search and count methods

Part of a larger set of changes to update Dawn's BitSet implementation.

Adds BitCount and ScanReverse, updates ScanForward. All methods have
explicit implementations for 8, 16, 32, and 64 bit.

Implementations are taken from ANGLE's mathutil.h

Bug: 42241557
Change-Id: Ibf848534ba0608fd8730b9e2dc9ac6bf75557807
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/232674
Commit-Queue: Brandon Jones <bajones@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
4 files changed
tree: 018e34d446a448bd99a5cb670316e0b0cf18a6b6
  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.