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dawn / dawn / cef8bcac582edf0bea73f074784e05f8d1e317a9
commitcef8bcac582edf0bea73f074784e05f8d1e317a9[log] [tgz]
authorCorentin Wallez <cwallez@chromium.org>Thu Jun 05 10:58:57 2025 -0700
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Jun 05 10:58:57 2025 -0700
treec2294564c5e3d03d1fe933a4fa94c60f7a2b6615
parent10a45acffb5b08f4d5dab406bdfbf60c7518d289 [diff]
[tint][ir] Handle binding_array in DVA

DVA previously had two separate code paths to replace parameters into
direct accesses in forked functions. Parameters that were handled were:

 - Pointers to various non-handle storage spaces that had logic to
   follow access chains.
 - Handle types that were mapped directly to a global variable.

 With binding_array the distinction between the two cases disappears as
 handle types can now be the result of indexing in a binding_array
 so they need to follow access chains during DVA.

 This CL merges both code paths in DVA by removing the handle paths and
 adding Load instruction support when following access chains as well as
 fixups needed to add that extra Load instructions back when
 reconstructing the parameter in the forked functions.

 Adds two tests for DVA of handle types that pass a binding_array as
 argument or a texture from a binding_array as argument.

 Bug: 393558555

Change-Id: I33e9f13cba22df2addcc2b1a2a832fa303eebf2c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/245474
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
2 files changed
tree: c2294564c5e3d03d1fe933a4fa94c60f7a2b6615
  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-format-ignore
  20. .clang-tidy
  21. .git-blame-ignore-revs
  22. .gitattributes
  23. .gitignore
  24. .gitmodules
  25. .gn
  26. .style.yapf
  27. .vpython3
  28. AUTHORS
  29. BUILD.bazel
  30. BUILD.gn
  31. CMakeLists.txt
  32. CMakeSettings.json
  33. CODE_OF_CONDUCT.md
  34. codereview.settings
  35. CONTRIBUTING.md
  36. CPPLINT.cfg
  37. DEPS
  38. DIR_METADATA
  39. go.mod
  40. go.sum
  41. go_presubmit_support.py
  42. LICENSE
  43. OWNERS
  44. PRESUBMIT.py
  45. README.chromium
  46. README.md
  47. WATCHLISTS
  48. 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.