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dawn / dawn / 1111ee87c4707959902f8c8529b6ad1928629d9b
commit1111ee87c4707959902f8c8529b6ad1928629d9b[log] [tgz]
authorJiawei Shao <jiawei.shao@intel.com>Tue Aug 08 00:23:24 2023 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue Aug 08 00:23:24 2023 +0000
tree2a78fc969f3d7c018b72d1513e21afb1f0a0f4c8
parent7f728fcec16b18c8e5cd215c4e5bb76f2e6d9a35 [diff]
Only unmap staging buffer before CopyFromStagingToBuffer() on D3D11

This patch moves the unmap() call on staging buffer to D3D11 backend
because only D3D11 backend requires to do so.

Note that if we keep unmap() before CopyFromStagingToBuffer() on all
backends, it will be difficult to share the staging buffer for
mappedAtCreation among different buffers because it is possible that
when we call unmap() on one buffer, another buffer using same staging
buffer internally is still mapped and waiting for data to be written
in. Because of this reason it seems we cannot easily reuse the
staging buffer for mappedAtCreation on D3D11 backend.

Bug: dawn:828, dawn:1772
Change-Id: Ibe92df69ee459669630af4d5898fd4d899d0f63a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/145180
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
2 files changed
tree: 2a78fc969f3d7c018b72d1513e21afb1f0a0f4c8
  1. .vscode/
  2. build_overrides/
  3. docs/
  4. generator/
  5. include/
  6. infra/
  7. scripts/
  8. src/
  9. test/
  10. third_party/
  11. tools/
  12. webgpu-cts/
  13. build
  14. buildtools
  15. testing
  16. .clang-format
  17. .clang-tidy
  18. .gitattributes
  19. .gitignore
  20. .gitmodules
  21. .gn
  22. AUTHORS
  23. BUILD.gn
  24. CMakeLists.txt
  25. CMakeSettings.json
  26. CODE_OF_CONDUCT.md
  27. codereview.settings
  28. CONTRIBUTING.md
  29. CPPLINT.cfg
  30. dawn.json
  31. dawn_wire.json
  32. DEPS
  33. DIR_METADATA
  34. Doxyfile
  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. tint_overrides_with_defaults.gni
README.md

Dawn's logo: a sun rising behind a stylized mountain inspired by the WebGPU logo. The text Dawn is written below it.

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, 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)

Status

(TODO)

License

Apache 2.0 Public License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.