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ac3765e663
D3D debug layer uses the descriptor size (width) to validate CBV bounds when directly allocating UBOs. This causes validation failure when the buffer size is misaligned (ie. not a multiple of 256B) even through the underlying resource heap size is always 64KB aligned. This change always aligns the buffer size to be 256B to avoid such validation error should sub-allocation fail. BUG=dawn:506 Change-Id: Ic9072934cac65cfd25d0e2a20cb364bd3ca88e3b Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/26820 Reviewed-by: Austin Eng <enga@chromium.org> Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.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 webgpu.h docs)
Status
(TODO)
License
Apache 2.0 Public License, please see LICENSE.
Disclaimer
This is not an officially supported Google product.