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dawn/dawn/refs/heads/chromium/7288
commit
ba8b1ec2a10a544be517adccc16456da023759c1
[log]
author
Kai Ninomiya <kainino@chromium.org>
Wed Jul 09 20:33:56 2025 -0700
committer
Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>
Wed Jul 09 20:33:56 2025 -0700
tree
81a2df93c641bacd8cab6e2c9c084ef5ef4c2614
parent
c7211a07d6ae92bb9c8908cb0ad04c56ef408fe1 [diff]
[dawn] Enable TINT_BUILD_SPV_READER in Wasm

Fix a bug where TINT_BUILD_SPV_READER would be disabled in builds that
had dawn_wasm, even for non-Wasm targets. (One GN build can contain both
Wasm and non-Wasm targets.)

We could probably just fix it to use is_wasm instead of dawn_wasm, but
there should be no reason to disable the SPIR-V Reader in Wasm builds.
(In fact, we definitely should support it so that Tint can be chained
with an HLSL or GLSL compiler in Wasm.)

CreateShaderModuleFromASM didn't work in Wasm because it depends on
wgpu::DawnShaderModuleSPIRVOptionsDescriptor. It's only used in one test
file, so move it to that test file unmodified.

Bug: none, 419596995
Change-Id: I20552d0086f8b1681afcec111fd75481100125aa
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/251775
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Reviewed-by: Loko Kung <lokokung@google.com>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
7 files changed
tree: 81a2df93c641bacd8cab6e2c9c084ef5ef4c2614
  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-format-ignore
  20. .clang-tidy
  21. .git-blame-ignore-revs
  22. .gitattributes
  23. .gitignore
  24. .gitmodules
  25. .gn
  26. .style.yapf
  27. .vpython3
  28. AUTHORS
  29. BUILD.bazel
  30. BUILD.gn
  31. CMakeLists.txt
  32. CMakeSettings.json
  33. CODE_OF_CONDUCT.md
  34. codereview.settings
  35. CONTRIBUTING.md
  36. CPPLINT.cfg
  37. DEPS
  38. DIR_METADATA
  39. go.mod
  40. go.sum
  41. go_presubmit_support.py
  42. LICENSE
  43. OWNERS
  44. PRESUBMIT.py
  45. README.chromium
  46. README.md
  47. WATCHLISTS
  48. 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.