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dawn / dawn / a8eb33756b228cf587ed065c0144e306def8f902
commita8eb33756b228cf587ed065c0144e306def8f902[log] [tgz]
authorCorentin Wallez <cwallez@chromium.org>Wed Nov 06 01:02:41 2024 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Nov 06 01:02:41 2024 +0000
tree5c1ad38c4468fc0b2affa2a145a6ebb76f0cf106
parentdf6873d0646714d9ff284848d84958e7412cd809 [diff]
[dawn] Add apparentSize to ExternalTextureDescriptor (noop)

This will be used to support the cases where in JS we have a VideoFrame
that has a visibleRect that doesn't have the same size as the
displaySize. The WGSL textureLoad and textureSize builtins on external
textures currently use the visibleRect size but they should use the
displaySize.

From the Dawn side, displaySize doesn't have a clear semantic, so call
it apparentSize as it's the size that the texture_external appears to be
in WGSL.

Likewise rename visibleOrigin/Size to cropOrigin/Size as it is more
clear what that means in the context of Dawn where we crop plane0.

In future CLs the new ExternalTextureDescriptor attributes will be used
to compute arguments in the ExternalTexture uniform buffer but first we
need Chromium to use them. So this CL only does dawn.json changes.

Bug: 377574981
Change-Id: I5ca5c67b37bf1c373fd9d41638db29cd6ede903c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/213975
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Loko Kung <lokokung@google.com>
1 file changed
tree: 5c1ad38c4468fc0b2affa2a145a6ebb76f0cf106
  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.