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This moves the creation of the Instance and Adapter discover to environment creation. It allows programatically filtering test parameterizations based on what is available on the system instead of relying on what is enabled at compile time. Because of an issue with the Vulkan validation layers, the instance and adapters are created twice. Once in environment creation, and once on environment set up. The Vulkan validation layers use static global mutexes which are unsafe when Chromium's test launcher forks the launcher process between environment creation and SetUp. Bug: dawn:396 Change-Id: Id79f0d274331e4ba95f75b2ca4e896ad0f7a31a8 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/21762 Commit-Queue: Austin Eng <enga@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Stephen White <senorblanco@chromium.org>
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.hversion that Dawn implements. - A C++ wrapper for the
webgpu.h.
- The
- 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:
- Dawn's bug tracker if you find issues with Dawn.
- Dawn's mailing list for other discussions related to Dawn.
- Dawn's source code
- Dawm's Matrix chatroom for live discussion around contributing or using Dawn.
- WebGPU's Matrix chatroom
Documentation table of content
Developer documentation:
User documentation: (TODO, figure out what overlaps with webgpu.h docs)
Status
(TODO)
License
Apache 2.0 Public License, please see LICENSE.
Disclaimer
This is not an officially supported Google product.