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dawn / dawn / 14aabfca88e5956630dc96ce06ef0c8eefd4afe5
commit14aabfca88e5956630dc96ce06ef0c8eefd4afe5[log] [tgz]
authorBrandon Jones <bajones@chromium.org>Thu Nov 23 20:50:48 2023 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Nov 23 20:50:48 2023 +0000
tree96f7c0d5b3de70bdb1d771c7706ed72b2541357e
parent8a161bff1561844fc4ecd00881d51437e42aaf49 [diff]
Fix timestamp queries on Android

It appears that timestamps in Vulkan behave much better if they are
written outside of render passes. This resolves issues seen on various
Android devices where timestamps for render passes were reporting 0 or
suspiciously low values. It also appears to have resolved an older
Qualcomm issue regarding resolving timestamp queries.

Because the issue is resolved, also re-enables the feature on Android.

Fixed: chromium:1504013, dawn:1559
Change-Id: I49769fd8bbd68b60e76f66ad80781affd8afb64f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/162080
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Brandon Jones <bajones@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
2 files changed
tree: 96f7c0d5b3de70bdb1d771c7706ed72b2541357e
  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. dawn.json
  34. dawn_wire.json
  35. DEPS
  36. DIR_METADATA
  37. Doxyfile
  38. go.mod
  39. go.sum
  40. go_presubmit_support.py
  41. LICENSE
  42. OWNERS
  43. PRESUBMIT.py
  44. README.chromium
  45. README.md
  46. 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.