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44d729fc8c
This is a simple RefCounted holder of a Buffer ref and offset. Encoded commands can store a ref to this object instead of directly storing an inline Buffer ref and offset, allowing other commands to dynamically patch in a different buffer+offset as needed, in a memory-safe way; as opposed to e.g. retaining an unmanaged pointer to the encoded command itself and modifying it in-place. Validation commands will use this to rewrite buffer references in encoded commands, so that they execute over validated inputs rather than over their original client-provided inputs. No net functional changes in this CL, just some groundwork for indirect draw/dispatch validation. Bug: dawn:809 Change-Id: I0570521a610fe3ea08190a525b4904749d7b7f24 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/64420 Reviewed-by: Austin Eng <enga@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Ken Rockot <rockot@google.com>
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
- Dawn'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 the webgpu.h docs)
Status
(TODO)
License
Apache 2.0 Public License, please see LICENSE.
Disclaimer
This is not an officially supported Google product.