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dawn/dawn/refs/heads/chromium/7795
commit
9004229f3dd0e900e4bcf5e8865ada1644ca409b
[log]
author
Antonio Maiorano <amaiorano@google.com>
Wed Apr 15 08:13:07 2026 -0700
committer
dawn-scoped@luci-project-accounts.iam.gserviceaccount.com <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>
Wed Apr 15 08:13:07 2026 -0700
tree
377729a0215e02b050b86216588d869f2150ed46
parent
205ff1d4f1ca4aca7599b9faea82dc3a1abb3d7c [diff]
[native][d3d12] Fix potential leak in T2B copy when temp buffer workaround active

When D3D12UseTempBufferInDepthStencilTextureAndBufferCopyWithNonZeroBufferOffset
is active, which happens on platforms that do not support programmable
sampler positions, and a T2B copy is made that triggers the use of this
workaround, it was possible to extract uninitialized data from the
padding bytes of texture to temp buffer copy. This CL fixes this by
making sure to initialize the temp buffer used in the copy.

Bug: 500443031
Change-Id: Id3a9912c76b438568de28a8b5a206d2551509516
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/302635
Reviewed-by: Loko Kung <lokokung@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2 files changed
tree: 377729a0215e02b050b86216588d869f2150ed46
  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. build
  16. buildtools
  17. testing
  18. .bazelrc
  19. .clang-format
  20. .clang-format-ignore
  21. .clang-tidy
  22. .git-blame-ignore-revs
  23. .gitattributes
  24. .gitignore
  25. .gitmodules
  26. .gn
  27. .style.yapf
  28. .vpython3
  29. AUTHORS
  30. BUILD.bazel
  31. BUILD.gn
  32. CMakeLists.txt
  33. CMakeSettings.json
  34. CODE_OF_CONDUCT.md
  35. codereview.settings
  36. CONTRIBUTING.md
  37. CPPLINT.cfg
  38. DEPS
  39. DIR_METADATA
  40. go.mod
  41. go.sum
  42. go_presubmit_support.py
  43. LICENSE
  44. OWNERS
  45. PRESUBMIT.py
  46. README.chromium
  47. README.md
  48. unsafe_buffers_paths.txt
  49. WATCHLISTS
  50. 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.