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In order to lift Dawn's restriction on the number of bindings per bind group, static sized arays need to be converted to dynamically sized vectors. This CL adds Chromium's StackVector class which behaves like std::vector but provides a stack allocator to allocate small vectors on the stack. Dawn can use this to avoid making separate heap allocations for a smaller, realistic binding counts. The CL also adds an ityp::stack_vec class to support using a StackVector with TypedInteger indices. Bug: dawn:442, dawn:443 Change-Id: I7604c02b3ea52cd63990a2e8b45ed238a5d52232 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23681 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Bryan Bernhart <bryan.bernhart@intel.com> Reviewed-by: Austin Eng <enga@chromium.org> Commit-Queue: Austin Eng <enga@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.