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dawn / dawn / b53356e2041800b5fd4a0059a625e1db3fce989b
commitb53356e2041800b5fd4a0059a625e1db3fce989b[log] [tgz]
authorColin Blundell <blundell@chromium.org>Thu Sep 26 13:43:35 2024 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Sep 26 13:43:35 2024 +0000
treeefc151a59072580c7e15d82978f9eb8b7ce1e19f
parentefcc72e0f20919a13194aa5583f53a0b0772002e [diff]
[Vulkan] Hardcode max possible number of Vk slots for YCbCr samplers

YCbCr samplers can take up multiple Vk descriptor slots. There is a
recommended Vulkan API for querying how many slots will be taken for a
given AHB, but it's unclear how to populate the parameters to be sure of
getting the correct answer. As the spec for that API says that the
maximum number of slots possibly taken would be the maximum number of
planes of a given format that will be sampled via YCbCr sampling, we
simply hardcode that maximum number here.

Bug: dawn:2476
Change-Id: Ie567ca7efc19fe908e2b6e9ab862ee19332820b0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/208274
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Colin Blundell <blundell@chromium.org>
1 file changed
tree: efc151a59072580c7e15d82978f9eb8b7ce1e19f
  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.