[Mac] Create and hold MtlTextures in SharedTextureMemoryMTL

Per validation constraints [1], the MtlTextures that TextureMTL creates
when initialized from SharedTextureMemory must match the properties of
the backing IOSurface that the SharedTextureMemoryMTL instance was
created with. This means that we can create the MtlTextures in
SharedTextureMemoryMTL on its creation and simply vend them out to
any TextureMTL objects that that SharedTextureMemoryMTL instance is
asked to create. This CL makes that change.

[1] https://source.chromium.org/chromium/chromium/src/+/main:third_party/dawn/src/dawn/native/SharedTextureMemory.cpp;l=182-193?q=SharedTextureMemory.cpp&ss=chromium

Change-Id: I5fa35b1e55b16436674dd3f730e613e6fcd9be9c
Bug: dawn:2152, 1493854
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/171041
Commit-Queue: Colin Blundell <blundell@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
3 files changed
tree: 8f221930318c4b6cff92e5aba5247d8d2ad7a4a0
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  5. generator/
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  9. src/
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  12. tools/
  13. webgpu-cts/
  14. .bazelrc
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  35. go_presubmit_support.py
  36. LICENSE
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  39. README.chromium
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  41. WORKSPACE.bazel
README.md

Build Status Matrix Space

Dawn, a WebGPU implementation

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 C/C++ headers that applications and other building blocks use.
    • The webgpu.h version that Dawn implements.
    • A C++ wrapper for the webgpu.h.
  • A “native” implementation of WebGPU using platforms' GPU APIs: D3D12, Metal, Vulkan and OpenGL. See per API support for more details.
  • A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers
  • Tint is a compiler for the WebGPU Shader Language (WGSL) that can be used in standalone to convert shaders from and to WGSL.

Helpful links:

Documentation table of content

Developer documentation:

User documentation: (TODO, figure out what overlaps with the webgpu.h docs)

License

BSD 3-Clause License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.