Google Git
Sign in
dawn / dawn / b7114a6b6974612d378066b31fb4f0d39218c783
commitb7114a6b6974612d378066b31fb4f0d39218c783[log] [tgz]
authorNatalie Chouinard <chouinard@google.com>Wed Aug 14 16:10:59 2024 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Aug 14 16:10:59 2024 +0000
treeb6d0c6ec32790e14c3b2750ae6cb64a16d3b10b9
parent239f9139d016cbca95775eb954eb908b4b0ea225 [diff]
[tint] Implement quadBroadcast

Implement WGSL builtin quadBroadcast in the SPIR-V IR backend, MSL
AST and IR backends and HLSL AST and IR backends. Subgroup builtins
are not yet implemented for the GLSL backend.

Constness of the ID arg is validated in the resolver, and a polyfill is
implemented in the SPIR-V backend to bitcast signed integer IDs to
unsigned.

Validation against negative ID args has been added for both
subgroupBroadcast and quadBroadcast.

Bug: 354738715
Change-Id: Iadb9726113bb964d51bbf4788f5deae4ae85b6d5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/202374
Reviewed-by: dan sinclair <dsinclair@google.com>
Commit-Queue: Natalie Chouinard <chouinard@google.com>
606 files changed
tree: b6d0c6ec32790e14c3b2750ae6cb64a16d3b10b9
  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. .gitattributes
  21. .gitignore
  22. .gitmodules
  23. .gn
  24. AUTHORS
  25. BUILD.bazel
  26. BUILD.gn
  27. CMakeLists.txt
  28. CMakeSettings.json
  29. CODE_OF_CONDUCT.md
  30. codereview.settings
  31. CONTRIBUTING.md
  32. CPPLINT.cfg
  33. DEPS
  34. DIR_METADATA
  35. go.mod
  36. go.sum
  37. go_presubmit_support.py
  38. LICENSE
  39. OWNERS
  40. PRESUBMIT.py
  41. README.chromium
  42. README.md
  43. 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.