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This change updates the Device descriptor to allow a device lost callback to be passed in at device creation time. This will be important for allowing the API to return devices which have already been lost in a future CL, which is the behavior required by the spec. This change does not yet deprecate the old method for setting the callback, as there's still some tricky scenarios that will need to be worked around to enable that and this CL is already fairly large. (The uses in question pass the device or a value created from the device as the userdata.) Bug: chromium:1234617 Change-Id: I1adea5ceffdfdcfedff9fff4960f12303abba29c Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/121041 Reviewed-by: Austin Eng <enga@chromium.org> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Brandon Jones <bajones@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, 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:
- Dawn bug tracker if you find issues with Dawn.
- Tint bug tracker if you find issues with Tint.
- Dawn's mailing list for other discussions related to Dawn.
- Dawn's source code
- Dawn's Matrix chatroom for live discussion around contributing or using Dawn.
- WebGPU's Matrix chatroom
- Tint mirror for standalone usage.
Documentation table of content
Developer documentation:
- Dawn overview
- Building
- Contributing
- Code of Conduct
- Testing Dawn
- Debugging Dawn
- Dawn's infrastructure
- Dawn errors
- Tint experimental extensions
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.