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dawn / dawn / 5608bf7a94f45e9e96aeeb5772164382a9e3807e
commit5608bf7a94f45e9e96aeeb5772164382a9e3807e[log] [tgz]
authorBrendon Tiszka <tiszka@chromium.org>Wed Sep 27 08:30:11 2023 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Sep 27 08:30:11 2023 +0000
tree6ae746cc9c3cab2df100194df6df8ad69b8ade33
parent63bcdc49e07a2e7f16817e59defc01d875c27102 [diff]
Reland "Reland "[DawnLPM] Enable dawn lpm for use_libfuzzer builds""

This is a reland of commit 555b91a7b3861dcc8f2158320d4aa62351f5bfb2

Differences: The change in https://dawn-review.googlesource.com/c/dawn/+/152500 caused `proto_out_dir` to default to `proto_in_dir` [1], in our case the `$root_out_dir/gen`. `proto_in_dir` needs to be set to `$root_out_dir/gen` because this is where `dawn_json_lpm_generator` generates its `.proto` files. This would cause the `.pb.h` and `.pb.c` files to be generated in: `gen/out/libfuzzer/gen/third_party/dawn/src/dawn/fuzzers/lpmfuzz/`

In this reland we explicitly set `proto_out_dir` to `//` which results in the `.pb.h` and `.pb.c` files being generated in the correct path.

Drive-by: Disable this fuzzer on every platform except for Linux. Breaking the Windows CQ bot was unexpected, however the build still works if we set is_dawn_lpm_fuzzer=true explicitly on Windows.

[1] https://source.chromium.org/chromium/chromium/src/+/main:third_party/protobuf/proto_library.gni;l=263;drc=cecb90fb3bdae7fbb8269f3142d68ad019f3045a

Original change's description:
> Reland "[DawnLPM] Enable dawn lpm for use_libfuzzer builds"
>
> This is a reland of commit 7e5f6113b005c24473fdd1908a5f47c20a0c297e
>
> Difference: Fixed cyclic dependency in https://dawn-review.googlesource.com/c/dawn/+/152500 and prevented this fuzzer from building in non-fuzzing builds https://dawn-review.googlesource.com/c/dawn/+/152562
>
> Original change's description:
> > [DawnLPM] Enable dawn lpm for use_libfuzzer builds
> >
> > This commit enables dawnlpm for use_libfuzzer=true builds which allows
> > us to use it on clusterfuzz.
> >
> > Bug: chromium:1374747
> > Change-Id: Ie515765bc54e56b028e860f056e2e8d9681752fa
> > Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/137341
> > Reviewed-by: Austin Eng <enga@chromium.org>
> > Commit-Queue: Brendon Tiszka <tiszka@chromium.org>
> > Kokoro: Kokoro <noreply+kokoro@google.com>
>
> Bug: chromium:1374747
> Change-Id: Ie64cadd86233a552682316352450988ada780db6
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/153400
> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
> Commit-Queue: Brendon Tiszka <tiszka@chromium.org>
> Kokoro: Kokoro <noreply+kokoro@google.com>

Bug: chromium:1374747
Change-Id: I849747d597e9aacd535e59fecbe60cef8b35186c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/153580
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Brendon Tiszka <tiszka@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
2 files changed
tree: 6ae746cc9c3cab2df100194df6df8ad69b8ade33
  1. .vscode/
  2. build_overrides/
  3. docs/
  4. generator/
  5. include/
  6. infra/
  7. scripts/
  8. src/
  9. test/
  10. third_party/
  11. tools/
  12. webgpu-cts/
  13. build
  14. buildtools
  15. testing
  16. .bazelrc
  17. .clang-format
  18. .clang-tidy
  19. .gitattributes
  20. .gitignore
  21. .gitmodules
  22. .gn
  23. AUTHORS
  24. BUILD.bazel
  25. BUILD.gn
  26. CMakeLists.txt
  27. CMakeSettings.json
  28. CODE_OF_CONDUCT.md
  29. codereview.settings
  30. CONTRIBUTING.md
  31. CPPLINT.cfg
  32. dawn.json
  33. dawn_wire.json
  34. DEPS
  35. DIR_METADATA
  36. Doxyfile
  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. WORKSPACE.bazel
README.md

Dawn's logo: a sun rising behind a stylized mountain inspired by the WebGPU logo. The text Dawn is written below it.

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, 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)

Status

(TODO)

License

Apache 2.0 Public License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.