[dawn][webgpu.h] Use wgpu::StringView for strings in output structs.

These are wgpu::AdapterInfo and wgpu::CompilationMessage.

 - Adds a deprecation #define for a few code changes in Skia and
   Chromium.
 - Fixup the FreeMembers logic for StringView that 1) doesn't need a
   FreeMembers method itself, 2) should have .data checked when deciding
   whether to auto-free members in the C++ header.
 - For convenience, add StringView support to webgpu_cpp_print.h
 - During conversion of dawn::native, try to simplify the handling of
   allocation and returning of output strings in Adapter and
   CompilationMessages.
 - Likewise for dawn::wire.
 - Simplify GPUCompilationMessages in dawn.node to compute all members
   in its constructor.
 - Fixup various other files for compilation errors after the change.

Bug: 42241188
Change-Id: I6db839a6b8862b4a55c1ea9911ed3725b465c2f3
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/208534
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
30 files changed
tree: 56b0357c55854193fb81975899f7b19749b6d2cb
  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. .bazelrc
  15. .clang-format
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  27. CODE_OF_CONDUCT.md
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  35. go_presubmit_support.py
  36. LICENSE
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  39. README.chromium
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  42. 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.