[dawn] Refactor ApiObject label to be thread-safe. This change replaces the raw std::string label in ApiObjectBase with a lazily-initialized ObjectLabel that holds a mutex-protected string. This ensures that SetLabel() and GetLabel() can be called safely from multiple threads without a device-wide lock. ApiObjectBase stores an atomic pointer to ObjectLabel (initialized once via std::once_flag on the first non-empty SetLabel call). GetLabel() returns std::string by value. Bug: 479457809 Change-Id: Ib9d14414d012bb984307fd391ba86bcff78bf820 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/297395 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Quyen Le <lehoangquyen@chromium.org> Reviewed-by: Kyle Charbonneau <kylechar@google.com>
Dawn is an open-source and cross-platform implementation of the 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.h version that Dawn implements.webgpu.h.Helpful links:
Developer documentation:
User documentation: (TODO, figure out what overlaps with the webgpu.h docs)
BSD 3-Clause License, please see LICENSE.
This is not an officially supported Google product.