Eagerly drop refrerences held by workaround callback

The temporary textures allocated by the workarounds for the
AlwaysResolveIntoZeroLevelAndLayer toggle were accidentally being
kept alive by the RenderPassEncoder object via the mEndCallback
callback. By nulling out the callback immediately after calling it
the references it contains can be eagerly dropped rather than
waiting for the encoder to be garbage collected.

Bug: 508686198
Fixed: 508686198
Change-Id: I2f94b1a1580d6ada7693add655f2491953065363
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/306815
Reviewed-by: Loko Kung <lokokung@google.com>
Commit-Queue: Brandon Jones <bajones@chromium.org>
1 file changed
tree: 89ec1da49f24a72d8a51a850be450ec7bd285c3c
  1. .github/
  2. .vscode/
  3. agents/
  4. build_overrides/
  5. docs/
  6. generator/
  7. include/
  8. infra/
  9. scripts/
  10. src/
  11. test/
  12. third_party/
  13. tools/
  14. webgpu-cts/
  15. .bazelrc
  16. .clang-format
  17. .clang-format-ignore
  18. .clang-tidy
  19. .git-blame-ignore-revs
  20. .gitattributes
  21. .gitignore
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  25. .vpython3
  26. AUTHORS
  27. BUILD.bazel
  28. BUILD.gn
  29. CMakeLists.txt
  30. CMakeSettings.json
  31. CODE_OF_CONDUCT.md
  32. codereview.settings
  33. CONTRIBUTING.md
  34. CPPLINT.cfg
  35. DEPS
  36. DIR_METADATA
  37. go.mod
  38. go.sum
  39. go_presubmit_support.py
  40. LICENSE
  41. OWNERS
  42. PRESUBMIT.py
  43. README.chromium
  44. README.md
  45. unsafe_buffers_paths.txt
  46. WATCHLISTS
  47. 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.