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dawn / dawn / 5406e9dfbe0ba766e5a7571e1ad7c2dc48ad57e7
commit5406e9dfbe0ba766e5a7571e1ad7c2dc48ad57e7[log] [tgz]
authorCorentin Wallez <cwallez@chromium.org>Tue May 07 15:58:57 2024 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue May 07 15:58:57 2024 +0000
tree1feefaf038b5434c5f39b2d1f29153fc19ea64b9
parent149dbd965e1acc4d419fe205644e38357a76ef62 [diff]
CMake: Fix workaround for CMake < 3.20 generated files.

CMake < 3.20 needs a workaround to be happy with generated files being
put in INTERFACE of targeets. However the previous workaround relied on
making empty files and changing the access time of the generator script.

Filesystem timestamp precision may be as low as a second, causing both
the generated files and generator to have the same access time, leading
to build systems not realizing that files needed to be rebuilt.

Instead use a heavier-handed approach to run the source code generation
at build time if the files aren't present. If the files are already
present, then they are integrated in the build graph correctly and don't
need special handling.

Fixed: 339061162
Change-Id: Idef6034a5aadb73988d3e556a8ab482a71951d0c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/187143
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
1 file changed
tree: 1feefaf038b5434c5f39b2d1f29153fc19ea64b9
  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. build
  15. buildtools
  16. testing
  17. .bazelrc
  18. .clang-format
  19. .clang-tidy
  20. .gitattributes
  21. .gitignore
  22. .gitmodules
  23. .gn
  24. AUTHORS
  25. BUILD.bazel
  26. BUILD.gn
  27. CMakeLists.txt
  28. CMakeSettings.json
  29. CODE_OF_CONDUCT.md
  30. codereview.settings
  31. CONTRIBUTING.md
  32. CPPLINT.cfg
  33. DEPS
  34. DIR_METADATA
  35. go.mod
  36. go.sum
  37. go_presubmit_support.py
  38. LICENSE
  39. OWNERS
  40. PRESUBMIT.py
  41. README.chromium
  42. README.md
  43. 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.