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dawn / dawn / e56a69d5d4f416571b3c9e1d659df75e1b7a0d1e
commite56a69d5d4f416571b3c9e1d659df75e1b7a0d1e[log] [tgz]
authorCorentin Wallez <cwallez@chromium.org>Fri Sep 20 14:53:59 2024 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Fri Sep 20 14:53:59 2024 +0000
treed8df922228bfa0c1bea75e255a20732f9a5d6826
parentaebc7be46ec601333832bc14256242f3280bbbd1 [diff]
SwapChainVk: Add frame pacing by waiting on previous rendering on images

Vulkan doesn't guarantee any frame pacing on its own even if a number of
drivers do it internally. This means that many rendering + present
can be in flight at the same time, making the mouse-to-screen latency
terrible.

This adds frame pacing in a simple way by waiting on the previous call
to vkAcquireNextImageKHR on the same image to be complete before
returning from GetCurrentTexture.

Bug: 42241496
Change-Id: I01d3a1b69cc8f86f01c384c0a1d38400d4f01790
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/206574
Reviewed-by: Geoff Lang <geofflang@google.com>
Auto-Submit: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Loko Kung <lokokung@google.com>
5 files changed
tree: d8df922228bfa0c1bea75e255a20732f9a5d6826
  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. build
  15. buildtools
  16. testing
  17. .bazelrc
  18. .clang-format
  19. .clang-tidy
  20. .gitattributes
  21. .gitignore
  22. .gitmodules
  23. .gn
  24. AUTHORS
  25. BUILD.bazel
  26. BUILD.gn
  27. CMakeLists.txt
  28. CMakeSettings.json
  29. CODE_OF_CONDUCT.md
  30. codereview.settings
  31. CONTRIBUTING.md
  32. CPPLINT.cfg
  33. DEPS
  34. DIR_METADATA
  35. go.mod
  36. go.sum
  37. go_presubmit_support.py
  38. LICENSE
  39. OWNERS
  40. PRESUBMIT.py
  41. README.chromium
  42. README.md
  43. WATCHLISTS
  44. 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.