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dawn / dawn / refs/heads/chromium/6571
commit03dfd718c9be433d303250376f1e8c63fcced985[log] [tgz]
authorLe Hoang Quyen <lehoangquyen@chromium.org>Mon Jul 01 17:42:13 2024 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Mon Jul 01 17:42:13 2024 +0000
tree0d7791126a07a07bada514662d316d10e175e16f
parenteb249b37e3e8aba8c60efe1be0b09263944f6b9b [diff]
Implement BufferMapExtendedUsages on D3D11

The new MappableBuffer supports mapping usage and any other usages.
This is achieved by managing several copies of the buffer, each with its
own ID3D11Buffer storage for specific usage.
For example, a buffer that has MapWrite + Storage usage will have at
least two copies:
- One copy with D3D11_USAGE_DYNAMIC for mapping on CPU.
- One copy with D3D11_USAGE_DEFAULT for writing on GPU.

Internally this class will synchronize the content between the copies so
that when it is mapped or used by GPU, the appropriate copy will have
the up-to-date content. The synchronizations are done in a way that
minimizes CPU stall as much as possible.

Bug: 345471009
Change-Id: I78c51a2bed5adcbdb65d05b5fc0f41706a53d9d7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/191980
Commit-Queue: Quyen Le <lehoangquyen@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
12 files changed
tree: 0d7791126a07a07bada514662d316d10e175e16f
  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. .gitattributes
  21. .gitignore
  22. .gitmodules
  23. .gn
  24. AUTHORS
  25. BUILD.bazel
  26. BUILD.gn
  27. CMakeLists.txt
  28. CMakeSettings.json
  29. CODE_OF_CONDUCT.md
  30. codereview.settings
  31. CONTRIBUTING.md
  32. CPPLINT.cfg
  33. DEPS
  34. DIR_METADATA
  35. go.mod
  36. go.sum
  37. go_presubmit_support.py
  38. LICENSE
  39. OWNERS
  40. PRESUBMIT.py
  41. README.chromium
  42. README.md
  43. 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.