D3D12: Search the default path of Windows SDK for DXC DLLs

This patch adds another way to get DXC DLLs (dxcompiler.dll and
dxil.dll) by searching the default installation path of Windows x64
SDK (C:\Program Files (x86)\Windows Kits\10\\bin\10.0.[version].0\x64)
so that now Dawn can find these two DLLs when Windows SDK is correctly
installed at the default location.

This patch also forces enabling the "use_dxc" toggle when Dawn can
find DXC DLLs and the device is created with "ShaderFloat16" extension
enabled because currently the HLSL shaders with float16_t can only be
compiled with DXC DLLs.

BUG=dawn:402

Change-Id: I410195d9e079f54faebbca71fff77a71f489f08e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/33180
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
4 files changed
tree: a54ec419a7cd8cf253a31bc294eeb819523ba45e
  1. build_overrides/
  2. docs/
  3. examples/
  4. generator/
  5. infra/
  6. scripts/
  7. src/
  8. third_party/
  9. tools/
  10. .clang-format
  11. .gitattributes
  12. .gitignore
  13. .gn
  14. AUTHORS
  15. BUILD.gn
  16. CMakeLists.txt
  17. codereview.settings
  18. CONTRIBUTING.md
  19. dawn.json
  20. dawn_wire.json
  21. DEPS
  22. LICENSE
  23. OWNERS
  24. PRESUBMIT.py
  25. README.chromium
  26. README.md
README.md

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)

Status

(TODO)

License

Apache 2.0 Public License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.