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dawn / dawn / cf1fdf413cba44667db8206466b265510b05f47a
commitcf1fdf413cba44667db8206466b265510b05f47a[log] [tgz]
authorAustin Eng <enga@chromium.org>Mon Jun 15 23:42:13 2020 +0000
committerCommit Bot service account <commit-bot@chromium.org>Mon Jun 15 23:42:13 2020 +0000
treedd80359920778d52139a2e914838da06a45da7cb
parentc3c2c9b6b09c5f7cdd6cebe77e29dbc2e16eaa4a [diff]
Handle OOM buffer allocations better

This CL checks buffer sizes before creating map read/write handles.
It is an error to map a buffer that can't be addressed on the CPU.

It also changes client-side synchronous errors on mapAsync to be
normal map failures, and not device lost errors. These should be
recoverable.

The CL adds additional testing for really large, but not UINT64_MAX
buffers, and fixes a VVL warning when buffer allocations exceed the
size of their memory heap.

Bug: dawn:450, dawn:398, chromium:1014740
Change-Id: Ieb34c04c3d01c429b7e3b7810729d5e91ecb6270
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22626
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
12 files changed
tree: dd80359920778d52139a2e914838da06a45da7cb
  1. build_overrides/
  2. docs/
  3. examples/
  4. generator/
  5. infra/
  6. scripts/
  7. src/
  8. third_party/
  9. tools/
  10. .clang-format
  11. .gitattributes
  12. .gitignore
  13. .gn
  14. AUTHORS
  15. BUILD.gn
  16. CMakeLists.txt
  17. codereview.settings
  18. CONTRIBUTING.md
  19. dawn.json
  20. dawn_wire.json
  21. DEPS
  22. LICENSE
  23. OWNERS
  24. PRESUBMIT.py
  25. README.chromium
  26. README.md
README.md

Dawn, a WebGPU implementation

Dawn is an open-source and cross-platform implementation of the work-in-progress 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 on Windows 10
    • Metal on macOS and iOS
    • Vulkan on Windows, Linux, ChromeOS, Android and Fuchsia
    • OpenGL as best effort where available
  • A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers

Helpful links:

Documentation table of content

Developer documentation:

User documentation: (TODO, figure out what overlaps with webgpu.h docs)

Status

(TODO)

License

Apache 2.0 Public License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.