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dawn/dawn/b9e83c959ce24450bcfedc9077e7fd742e05a7ef
commit
b9e83c959ce24450bcfedc9077e7fd742e05a7ef
[log]
author
Kai Ninomiya <kainino@chromium.org>
Fri Oct 16 16:15:24 2026 -0700
committer
dawn-scoped@luci-project-accounts.iam.gserviceaccount.com <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>
Fri Oct 16 16:15:24 2026 -0700
tree
19d8e3b768a3f1f0ab29ab14178b4fcfff955e2a
parent
197c7eeec46fa4f40a50da5dfece2fc9ebff75c6 [diff]
[dawn][metal] ArgBufs: directly map BindGroup slot to ArgBuf buffer index

BindGroupTracker::Apply only applies *changed* bind groups (not all of
them) so it's not valid to derive the argument buffer / dynamic offset
buffer indices there. Switch to a direct mapping of BindGroupIndex ->
[[buffer()]] numbers so we don't have to.

Test: BindGroupTests.DrawThenChangePipelineAndBindGroup
Test: BindGroupTests.DrawThenChangePipelineTwiceAndBindGroup
Test: DynamicBufferOffsetTests.BasicInheritRenderPipeline
Test: DynamicBufferOffsetTests.InheritDynamicOffsetsComputePipeline
Test: TextureShaderBuiltinTests.MultiplePipelinesOneBindGroup
Bug: 363031535
Change-Id: I92df53b1301c36fb4f0b874be6d5071c14feaaca
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/301179
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Auto-Submit: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
5 files changed
tree: 19d8e3b768a3f1f0ab29ab14178b4fcfff955e2a
  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. .bazelignore
  19. .bazelrc
  20. .bazelversion
  21. .clang-format
  22. .clang-format-ignore
  23. .clang-tidy
  24. .git-blame-ignore-revs
  25. .gitattributes
  26. .gitignore
  27. .gitmodules
  28. .gn
  29. .style.yapf
  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. OWNERS
  47. PRESUBMIT.py
  48. PRESUBMIT_test.py
  49. README.chromium
  50. README.md
  51. unsafe_buffers_paths.txt
  52. vpython.toml
  53. vpython.toml.uv.lock
  54. WATCHLISTS
  55. 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.