Reland "Remove global lock from ApiObjectBase::APIRelease"

This is a reland of commit 756a63627ba8a0b6e8b8e5eefa5b12d2fd43a812

Adds a fine-grained lock on the D3D11 CommandRecordingContext so that
it can be safely used to unmap buffers when they are destroyed.

Tested against implicit_device_sync_tests in:
 https://chromium-swarm.appspot.com/task?id=6740eac4bdf08c10

Original change's description:
> Remove global lock from ApiObjectBase::APIRelease
>
> Bug: dawn:2069
> Change-Id: Ief176254bd05ab87684f8da0d81195d645dff2b1
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/153482
> Kokoro: Kokoro <noreply+kokoro@google.com>
> Commit-Queue: Austin Eng <enga@chromium.org>
> Reviewed-by: Loko Kung <lokokung@google.com>

Bug: dawn:2069
Change-Id: Ie4c9f56a4fc57caa96d5eb43f384b3a276ce0db0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/170441
Reviewed-by: Loko Kung <lokokung@google.com>
Commit-Queue: Austin Eng <enga@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
6 files changed
tree: 194efe95848ff1615665edec327a92e1301a0c15
  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. .bazelrc
  15. .clang-format
  16. .clang-tidy
  17. .gitattributes
  18. .gitignore
  19. .gitmodules
  20. .gn
  21. AUTHORS
  22. BUILD.bazel
  23. BUILD.gn
  24. CMakeLists.txt
  25. CMakeSettings.json
  26. CODE_OF_CONDUCT.md
  27. codereview.settings
  28. CONTRIBUTING.md
  29. CPPLINT.cfg
  30. DEPS
  31. DIR_METADATA
  32. Doxyfile
  33. go.mod
  34. go.sum
  35. go_presubmit_support.py
  36. LICENSE
  37. OWNERS
  38. PRESUBMIT.py
  39. README.chromium
  40. README.md
  41. 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.