SwapChainD3D12: Remember resource state for when reusing buffers.

Most applications would reconfigure the surface when there is no
current texture. However reconfiguration can also be done while a
texture is current and such that the IDXGISwapChain could recycle
buffers. In that case the ID3D12Resource of the current texture might
not be in D3D12_RESOURCE_STATE_COMMON like we assumed for all newly
returned wgpu::SurfaceTextures but a different one (based on what
barriers where done previously).

Add a state to d3d12::Texture::CreateForSwapChain as well as a
GetResourceStateForSwapChain getter and use it in d3d12::SwapChain to
keep track of the current state of the ID3D12Resource for a swap chain
buffer.

Bug: 42241264
Change-Id: I28745c8867ad12e3fa3d780e536e14247fd57db5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/205455
Reviewed-by: Loko Kung <lokokung@google.com>
Reviewed-by: Geoff Lang <geofflang@google.com>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
5 files changed
tree: 339d23d77b13c952d1f621bbbd36371b634e2f91
  1. .github/
  2. .vscode/
  3. build_overrides/
  4. docs/
  5. generator/
  6. include/
  7. infra/
  8. scripts/
  9. src/
  10. test/
  11. third_party/
  12. tools/
  13. webgpu-cts/
  14. .bazelrc
  15. .clang-format
  16. .clang-tidy
  17. .gitattributes
  18. .gitignore
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  21. AUTHORS
  22. BUILD.bazel
  23. BUILD.gn
  24. CMakeLists.txt
  25. CMakeSettings.json
  26. CODE_OF_CONDUCT.md
  27. codereview.settings
  28. CONTRIBUTING.md
  29. CPPLINT.cfg
  30. DEPS
  31. DIR_METADATA
  32. go.mod
  33. go.sum
  34. go_presubmit_support.py
  35. LICENSE
  36. OWNERS
  37. PRESUBMIT.py
  38. README.chromium
  39. README.md
  40. WATCHLISTS
  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.