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dawn/dawn/refs/heads/chromium/7910
commit
c8a81731f4a1358633081729c304e7ec15ee7085
[log]
author
Corentin Wallez <cwallez@chromium.org>
Tue Jun 23 08:13:38 2026 -0700
committer
dawn-scoped@luci-project-accounts.iam.gserviceaccount.com <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>
Tue Jun 23 08:13:38 2026 -0700
tree
b5160397bd2e235a6b1fe66066c55729167ca069
parent
10e61a3d7eb8fc22e16181964bdb725d4bba9048 [diff]
[dawn][native] Add support for typed spans in input structures

Changes the code generation of the wgpu_structs_autogen.h used in
dawn_platform.h to use ityp::span when converting size_t + T* (which a
TypedInteger index or just size_t).

Adds kOffsetOfSize/Data to dawn::Span to check via a static_assert that
the layout of the struct stays the same as webgpu.h so we can directly
cast from one type to another.

Spanify VertexBufferLayout to exercise the new codegen path.

Bug: 515272358
Change-Id: Iebc68209908e5f2181124455a89be6f183813e08
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/317155
Reviewed-by: Loko Kung <lokokung@google.com>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
6 files changed
tree: b5160397bd2e235a6b1fe66066c55729167ca069
  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.