Refactor CopySplitTests.cpp in unittest D3D12

The log output code snippet duplicates again and again in this test.
So this change put it into a function and all tests can call that
function without duplicated code. It names the new function as
DoTest(), which calls DoTest2D() (the original DoTest()). The new
function can add DoTest3D() into the test in order to test 3D
texture splitter if needed and all tests don't need to change

It also removes TexelBlockInfo instance in DoTest2D(), which provide
no new info, just as Origin3D instance (for origin) and Extent3D
instance (for copySize).

Bug: dawn:547

Change-Id: I668682c5bdbae56dcdc8cf0e232f27233e17b883
Reviewed-by: Austin Eng <>
Reviewed-by: Corentin Wallez <>
Commit-Queue: Yunchao He <>
1 file changed
tree: 05a59b8b1b64d1ba1febb4165cdcdc9a9c70127f
  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, 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.