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dawn / dawn / 99ee5e80280956834aeae47868b2e7d420ca7cac
commit99ee5e80280956834aeae47868b2e7d420ca7cac[log] [tgz]
authorYunchao He <yunchao.he@intel.com>Wed Jun 09 21:20:32 2021 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Jun 09 21:20:32 2021 +0000
tree29b2d08649e8eaf447a14bf708b3a7ad547c35fd
parent8bcfec716a29f21e83e4ed6e8ac378ee6ab87473 [diff]
Impl 3DTexture copy splitter for empty first row on D3D12 - 2

If the copy region generated from 2D texture copy splitter has an
empty first row due to alignment adjustment and we simply extend
it to all copied depth slices, the copy region will be incorrect
for 3D texture copy.

If there is an empty first row and the copy height is odd, we can
split the copy region into two:
  - copy0: copy the first depth slice
  - copy1: copy the rest depth slices because there is no empty
    row after alignment adjustment

This method resolves the remaining problem when copy height is 1.
It also is an optimization for other odd copy height cases, say
copy height is 3, 5, 7, etc.

This change implements the special situation when the copy region
generated from 2D texture copy splitter has an empty first row and
its copy height is odd.

Bug: dawn:547
Change-Id: Idf4f4a9b87f783c5328463e0f4182429a7e809f1
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/53885
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Yunchao He <yunchao.he@intel.com>
2 files changed
tree: 29b2d08649e8eaf447a14bf708b3a7ad547c35fd
  1. .vscode/
  2. build_overrides/
  3. docs/
  4. examples/
  5. generator/
  6. infra/
  7. scripts/
  8. src/
  9. third_party/
  10. tools/
  11. .clang-format
  12. .gitattributes
  13. .gitignore
  14. .gn
  15. AUTHORS
  16. BUILD.gn
  17. CMakeLists.txt
  18. codereview.settings
  19. dawn.json
  20. dawn_wire.json
  21. DEPS
  22. DIR_METADATA
  23. LICENSE
  24. OWNERS
  25. PRESUBMIT.py
  26. README.chromium
  27. README.md
README.md

Dawn, a WebGPU implementation

Dawn is an open-source and cross-platform implementation of the work-in-progress 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 on Windows 10
    • Metal on macOS and iOS
    • Vulkan on Windows, Linux, ChromeOS, Android and Fuchsia
    • OpenGL as best effort where available
  • A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers

Helpful links:

Documentation table of content

Developer documentation:

User documentation: (TODO, figure out what overlaps with the webgpu.h docs)

Status

(TODO)

License

Apache 2.0 Public License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.