[Static samplers] Pivot to having StaticSamplerBindingLayout

This CL moves static samplers away from being specified via a chained
struct on SamplerLayoutBinding to a chained struct on
BindGroupLayoutEntry, similarly to ExternalTextureBindingLayout. This
organization avoids redundantly specifying the sampler type and makes
the conceptual relationships more clear: a SamplerLayoutBinding is for
a sampler supplied dynamically, whereas the StaticSamplerBindingLayout
is for samplers supplied statically.

As a bonus, this new code organization directly points the way to a
couple next steps that need to happen:
* Incorporation of validation of the number of static samplers
* Populating BindingInfo with the static sampler's sampler object

This CL leaves TODOs for those next steps.

Bug: dawn:2463
Change-Id: I9974b5678051ea38ebab57e801affc474d13938b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/181042
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Colin Blundell <blundell@chromium.org>
5 files changed
tree: beab7e47ed21f235f7c01996a913479938f46843
  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. .bazelrc
  15. .clang-format
  16. .clang-tidy
  17. .gitattributes
  18. .gitignore
  19. .gitmodules
  20. .gn
  21. AUTHORS
  22. BUILD.bazel
  23. BUILD.gn
  24. CMakeLists.txt
  25. CMakeSettings.json
  26. CODE_OF_CONDUCT.md
  27. codereview.settings
  28. CONTRIBUTING.md
  29. CPPLINT.cfg
  30. DEPS
  31. DIR_METADATA
  32. go.mod
  33. go.sum
  34. go_presubmit_support.py
  35. LICENSE
  36. OWNERS
  37. PRESUBMIT.py
  38. README.chromium
  39. README.md
  40. 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.