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dawn / dawn / fbdcbcafa541bb55d40720166f41e29c7c92a744
commitfbdcbcafa541bb55d40720166f41e29c7c92a744[log] [tgz]
authorAustin Eng <enga@chromium.org>Fri May 10 20:47:37 2024 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Fri May 10 20:47:37 2024 +0000
treee26136ff448dd03e5d0fe7db52545f67879b344e
parent1dfceaba8f3d0fe089da02258a9445ee64008400 [diff]
Fix SharedResourceMemory begin/end access without using texture

 - Change SetHasAccess to Resume/PauseAccess. PauseAccess returns
   the last usage serial for exporting. If the resource is not used
   it returns serial 0 (beginning of time).

 - When there are multiple concurrent readers, only acquire the
   unacquired pending fences when the last read ends.

 - Update a few tests since now, EndAccess may yield zero fences.
   This happens if the buffer is not used, and it is not the last
   concurrent read, or if there were no begin fences to forward.

Bug: 42241403
Change-Id: If43543f90a896d3c5aabaf21e788276545f67757
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/186846
Reviewed-by: Sunny Sachanandani <sunnyps@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Loko Kung <lokokung@google.com>
26 files changed
tree: e26136ff448dd03e5d0fe7db52545f67879b344e
  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.