Google Git
Sign in
dawn / dawn / 02f1ad760b94582e4386d2f6ac2992bfda0b26d2
commit02f1ad760b94582e4386d2f6ac2992bfda0b26d2[log] [tgz]
authorLe Hoang Quyen <lehoangquyen@chromium.org>Thu Nov 23 14:19:04 2023 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Nov 23 14:19:04 2023 +0000
tree2a1c1d545d9717bf32f806fb50cc4fc885756f34
parenta5460d0c97c7c07a49e65fdbfeed1af6ff41f7e4 [diff]
BufferMapExtendedUsages now supports (MapRead | MapWrite).

This CL removes the restriction that MapRead & MapWrite cannot be
combined.

The restriction was originally intended to make it easier to optimize
buffer's usage flag in D3D11. However, it turns out it's unnecessary
because regardless of it the D3D11 backend still wouldn't be able to
support BufferMapExtendedUsages feature efficiently. When MapRead is
specified, D3D11 requires that the buffer must only be used in copy
operations. It cannot be used in a draw call. Therefore
BufferMapExtendedUsages feature is not intended to be enabled in D3D11
backend for now and the original restriction meant for it will be
lifted.

Bug: dawn:2204
Change-Id: I4a0ca2f920af8b151b269e8136c99b0e9dadbe2b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/162340
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Auto-Submit: Quyen Le <lehoangquyen@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
5 files changed
tree: 2a1c1d545d9717bf32f806fb50cc4fc885756f34
  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. dawn.json
  34. dawn_wire.json
  35. DEPS
  36. DIR_METADATA
  37. Doxyfile
  38. go.mod
  39. go.sum
  40. go_presubmit_support.py
  41. LICENSE
  42. OWNERS
  43. PRESUBMIT.py
  44. README.chromium
  45. README.md
  46. 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.