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On D3D12 backend, external texture holds mD3D11on12Resource which caches D3D11on12Resources and guarding by refptr. The texture will released this ref until destructor works. This model leaks the gpu memory if client fails to release all the ref to the texture. Instead, external texture also provides a method called "Destroy". It is called more eagerly and means the external texture is in the end of lifecycle. So thid CL moves the ref reset of D3D11on12Resource into Destroy(). This prevents unexpected gpu memory leak caused by client missing ref release call. Bug: 1308405 Change-Id: I253e1eda192256e4bd1c470e26dcc6af3c234447 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/85000 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Shaobo Yan <shaobo.yan@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:
- Dawn overview
- Building Dawn
- Contributing to Dawn
- Testing Dawn
- Debugging Dawn
- Dawn's infrastructure
- Dawn errors
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.