Google Git
Sign in
dawn / dawn / 66572d9b4ad57b92bcd96eac1d8aee4457b7acf1
commit66572d9b4ad57b92bcd96eac1d8aee4457b7acf1[log] [tgz]
authorSunny Sachanandani <sunnyps@chromium.org>Mon Jan 27 11:58:09 2025 -0800
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Mon Jan 27 11:58:09 2025 -0800
tree7aa4ecf34060b3adef403c5227109b2df94a8ffd
parent307ae2c3e56b0557777248764828c191e03019da [diff]
metal: Use default storage mode for IOSurface textures

The best practice is to use the default storage mode which is "shared"
on Apple GPUs and "managed" on non-Apple GPUs. Using a non-default
storage mode could have implications on how IOAccelerator allocations
are made for the IOSurface e.g. managed implies lack of coherence
between CPU and GPU and needs to be explicitly synchronized - it's not
clear if this can cause an extra allocation on Apple GPUs.

Bug: 388872587
Change-Id: Ief7905593d08251b8f4626e5f14b06e6e98a3c6a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/223275
Auto-Submit: Sunny Sachanandani <sunnyps@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Sunny Sachanandani <sunnyps@chromium.org>
5 files changed
tree: 7aa4ecf34060b3adef403c5227109b2df94a8ffd
  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. .git-blame-ignore-revs
  21. .gitattributes
  22. .gitignore
  23. .gitmodules
  24. .gn
  25. AUTHORS
  26. BUILD.bazel
  27. BUILD.gn
  28. CMakeLists.txt
  29. CMakeSettings.json
  30. CODE_OF_CONDUCT.md
  31. codereview.settings
  32. CONTRIBUTING.md
  33. CPPLINT.cfg
  34. DEPS
  35. DIR_METADATA
  36. go.mod
  37. go.sum
  38. go_presubmit_support.py
  39. LICENSE
  40. OWNERS
  41. PRESUBMIT.py
  42. README.chromium
  43. README.md
  44. WATCHLISTS
  45. 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.