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dawn / dawn / de3ae9cba2c7503c27d553e29db3a81f5769b1f8
commitde3ae9cba2c7503c27d553e29db3a81f5769b1f8[log] [tgz]
authorBrandon Jones <bajones@chromium.org>Fri Apr 04 12:54:28 2025 -0700
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Fri Apr 04 12:54:28 2025 -0700
treeaf2088b7d912aa237e27845bd058c6e4597ca9fe
parent5afe994e5aa702a483311fe5f757d1c7752ba082 [diff]
Revert "Reland "Improve DX compiler library loading""

This reverts commit e579b628e5d5276086b6a2eaefa1718586bc7e18.

Reason for revert: Multiple bots are reporting infra issues with "The following files are missing: dxil.dll, dxcompiler.dll"

Original change's description:
> Reland "Improve DX compiler library loading"
>
> This is a reland of commit e4d4669d79501b1acdd2bf017ba491b611d741da
>
> Remove build_with_chromium statements in test GN files that copy
> DLLs. Rely on copies instructions which already exist with the D3D12
> files.
>
> To appease Skia builds which do not depend on the Windows SDK,
> fallback to system FXC if the local directory version is not found.
>
> Original change's description:
> > Improve DX compiler library loading
> >
> > Previously, DX compiler DLLs were loaded using LoadLibrary with no path.
> > D3D12 compiler DLLs were further sourced from the local user's SDK
> > directory as a fallback.
> >
> > For better security, load DX compiler DLLs using full paths, with
> > SEARCH_DLL_LOAD_DIR | SEARCH_DEFAULT_DIRS for better security. Scenarios
> > such as Skia and x86 builds where we need dawn_use_built_dxc will
> > fallback to FXC. No fallbacks to local user SDK directories.
> >
> > Bug:356665092
> > Change-Id: Ib4148f9b89da694e3868b4f3c3c329a4b06ce922
> > Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/229754
> > Reviewed-by: Corentin Wallez <cwallez@chromium.org>
> > Commit-Queue: Rafael Cintron <rafael.cintron@microsoft.com>
> > Reviewed-by: Antonio Maiorano <amaiorano@google.com>
>
> Bug: 356665092
> Change-Id: Ic05d20c47c5db3021f9e38b724bf527bfba52a5e
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/233216
> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
> Reviewed-by: Antonio Maiorano <amaiorano@google.com>
> Commit-Queue: Rafael Cintron <rafael.cintron@microsoft.com>

TBR=cwallez@chromium.org,rafael.cintron@microsoft.com,amaiorano@google.com,dawn-scoped@luci-project-accounts.iam.gserviceaccount.com

No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 356665092
Change-Id: I9ee5ce8191009370fb5fda036648e599cea1dede
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/234916
Reviewed-by: Brandon Jones <bajones@chromium.org>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Brandon Jones <bajones@chromium.org>
11 files changed
tree: af2088b7d912aa237e27845bd058c6e4597ca9fe
  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.