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dawn / dawn / 2ce1d927e98a654bb9b7137a07a7ccf5dbb5f4df
commit2ce1d927e98a654bb9b7137a07a7ccf5dbb5f4df[log] [tgz]
authorCorentin Wallez <cwallez@chromium.org>Thu Oct 22 17:07:49 2020 +0000
committerCommit Bot service account <commit-bot@chromium.org>Thu Oct 22 17:07:49 2020 +0000
tree9c4644a34bbecc5e9595077ceadda7b37c32330f
parent22505a5afe1f75b402a00a27d49e313fbd6e2181 [diff]
SwapChainVk: handle mismatching size and usage with a blit

In Vulkan the swapchain can stop working if the window resizes and
doesn't match the size of the swapchain images anymore. WebGPU
applications might not handle resizes instantly, so if the swapchain
becomes incompatible we give them a temporary texture that we'll then
blit inside the real swapchain texture.

This also handles the case where the application requires more usages
than what the swapchain can support.

In addition, temporary checks are added that fail swapchain creation if
the VkSurface doesn't support BGRA8Unorm which is the only allowed
format for WebGPU swapchains at the moment.

SwapChainTests should now work on Vulkan and are enabled.

Bug: dawn:269

Change-Id: I812c0653125ed86d3a0f8f67347e961c7b207a98
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/30700
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
5 files changed
tree: 9c4644a34bbecc5e9595077ceadda7b37c32330f
  1. build_overrides/
  2. docs/
  3. examples/
  4. generator/
  5. infra/
  6. scripts/
  7. src/
  8. third_party/
  9. tools/
  10. .clang-format
  11. .gitattributes
  12. .gitignore
  13. .gn
  14. AUTHORS
  15. BUILD.gn
  16. CMakeLists.txt
  17. codereview.settings
  18. CONTRIBUTING.md
  19. dawn.json
  20. dawn_wire.json
  21. DEPS
  22. LICENSE
  23. OWNERS
  24. PRESUBMIT.py
  25. README.chromium
  26. README.md
README.md

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.h version that Dawn implements.
    • A C++ wrapper for the webgpu.h.
  • 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:

Documentation table of content

Developer documentation:

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.