Revert "Adds destroy handling for simple objects without new backend changes yet."

This reverts commit 9901c710d1f834fd3e98356f0842553e1ac4afb2.

Reason for revert: Breaking dawn roll due to include in ShaderMock

Original change's description:
> Adds destroy handling for simple objects without new backend changes yet.
> Simple objects are defined here as objects that do not already have a destroy or destroy-like API available. They include:
> - BindGroups
> - ComputePipelines
> - PipelineLayouts
> - RenderPipelines
> - Samplers
> - ShaderModules
> - SwapChains
> Changes include:
> - Adds necessary constructors for testing and caching
> - Adding mock objects, mock constructors, and tests
> Bug: dawn:628
> Change-Id: I26a5e37bc5580b9064db299a75ef1243521b266a
> Reviewed-on:
> Commit-Queue: Loko Kung <>
> Reviewed-by: Austin Eng <>

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: dawn:628
Change-Id: Ic727106f3dc701dc25418adf9824fbc5397aa656
Reviewed-by: Loko Kung <>
Reviewed-by: Austin Eng <>
Commit-Queue: Loko Kung <>
30 files changed
tree: e581afafb186d80f663bdcb8972b27e2a3d2aae2
  1. .vscode/
  2. build_overrides/
  3. docs/
  4. examples/
  5. generator/
  6. infra/
  7. scripts/
  8. src/
  9. third_party/
  10. tools/
  11. .clang-format
  12. .gitattributes
  13. .gitignore
  14. .gn
  17. CMakeLists.txt
  18. codereview.settings
  19. dawn.json
  20. dawn_wire.json
  21. DEPS
  24. OWNERS
  26. README.chromium

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 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 the webgpu.h docs)




Apache 2.0 Public License, please see LICENSE.


This is not an officially supported Google product.