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dawn/dawn/3d19769c806af41879d457c10f9cbdeb5059a83e
commit
3d19769c806af41879d457c10f9cbdeb5059a83e
[log]
author
Natalie Chouinard <chouinard@google.com>
Fri Jun 26 11:16:39 2026 -0700
committer
dawn-scoped@luci-project-accounts.iam.gserviceaccount.com <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>
Fri Jun 26 11:16:39 2026 -0700
tree
00a1f3c4fdea7e844257989a776d6d269a511652
parent
827210ba558b7696b4f5cf2fcd2765d800001791 [diff]
Add LiteRT-LM DEP and build scripts

Add a DEP on the LiteRT-LM mirror so that it can be checked out via
gclient for building and running benchmarks. The necessary prebuilts
(typically shipped for the GitHub repo via Git LFS) and an open
gemma-3n-E4B-it-int4.litertlm model are mirrored to an experimental CIPD
bucket as a temporary prototype location.

With the GN action it is now possible to build the benchmark binary
with:

autoninja -C out/active third_party/litert-lm:litert_lm_advanced_main

This binary can be manually run, and will in a follow up be configured
to run via LUCI recipe.

Bug: 521332988
Change-Id: Ibfbdaa7e5659525cdb06bdea17c0c06dfe43b3dc
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/320135
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Natalie Chouinard <chouinard@google.com>
8 files changed
tree: 00a1f3c4fdea7e844257989a776d6d269a511652
  1. .github/
  2. .vscode/
  3. agents/
  4. build_overrides/
  5. docs/
  6. generator/
  7. include/
  8. infra/
  9. scripts/
  10. src/
  11. test/
  12. third_party/
  13. tools/
  14. webgpu-cts/
  15. build
  16. buildtools
  17. testing
  18. .bazelrc
  19. .bazelversion
  20. .clang-format
  21. .clang-format-ignore
  22. .clang-tidy
  23. .git-blame-ignore-revs
  24. .gitattributes
  25. .gitignore
  26. .gitmodules
  27. .gn
  28. .style.yapf
  29. .vpython3
  30. AUTHORS
  31. BUILD.bazel
  32. BUILD.gn
  33. CMakeLists.txt
  34. CMakeSettings.json
  35. CODE_OF_CONDUCT.md
  36. codereview.settings
  37. CONTRIBUTING.md
  38. CPPLINT.cfg
  39. DEPS
  40. DIR_METADATA
  41. go.mod
  42. go.sum
  43. go_presubmit_support.py
  44. LICENSE
  45. MODULE.bazel
  46. MODULE.bazel.lock
  47. OWNERS
  48. PRESUBMIT.py
  49. PRESUBMIT_test.py
  50. README.chromium
  51. README.md
  52. unsafe_buffers_paths.txt
  53. WATCHLISTS
  54. 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.