Google Git
Sign in
dawn / dawn / b23b828bf6b5a37b9ff5d0633ad3a4783ebbd0c6
commitb23b828bf6b5a37b9ff5d0633ad3a4783ebbd0c6[log] [tgz]
authorPeter McNeeley <petermcneeley@google.com>Tue Nov 26 20:43:30 2024 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue Nov 26 20:43:30 2024 +0000
treefe6c1efb476e6b53247fc79c062f9c6044403d81
parentfdc32e2015023fa406c4228a6a6df412f6dbcf72 [diff]
[tint] Allow platform discard on metal >= 2.3

For Metal 2.3+ the discard semantics have changed to demote to
helper. This means we no longer need to run our own demote to helper
internal transformation.

This feature is tested by both CTS and the dawn_end2end
`DiscardBasicTest`


Platform Discard document:
https://docs.google.com/document/d/1CEnS-99jspI-ghs_wOpZ8vMGhOW80wQxxTDly87bFN4/edit?pli=1&resourcekey=0-o02HubN1NPVz1ssuEyqIPQ&tab=t.0

Metal 2.3 version:
https://developer.apple.com/documentation/metal/mtllanguageversion/mtllanguageversion2_3

Bug: 42250787, 372714384
Change-Id: Icbb56f8a08b35178283104b3ae7c2ad53c479e16
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/216497
Commit-Queue: Peter McNeeley <petermcneeley@google.com>
Reviewed-by: James Price <jrprice@google.com>
8 files changed
tree: fe6c1efb476e6b53247fc79c062f9c6044403d81
  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.