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dawn/dawn/6c34e11e43547b2834ef65b2afb6ed48f0c30434
commit
6c34e11e43547b2834ef65b2afb6ed48f0c30434
[log] [tgz]
author
dan sinclair <dsinclair@chromium.org>
Fri Mar 17 15:08:06 2023 +0000
committer
Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>
Fri Mar 17 15:08:06 2023 +0000
tree
4a1f37e65cfd1d8b996681f239b16016bf6d10ba
parent
7a9ea24fdf61ff7f734a5eebf65d1bba8a6b2bbb [diff]
Support float values where the zeros change the exponent

When underflow is detected in float parsing, WGSL returns `0.0`.
Currently, if the number of `0`s following a `.` shifts the exponent
from a positive to a negative we were not correctly identify the
underflow and returning 0. This CL updates the float parsing to detect
undeflow in this case and return `0.0` as expected.

Bug: tint:1863
Change-Id: I164063cebf70f825fdf2753dff8a4f016939c38e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/124341
Commit-Queue: David Neto <dneto@google.com>
Reviewed-by: David Neto <dneto@google.com>
Auto-Submit: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
2 files changed
tree: 4a1f37e65cfd1d8b996681f239b16016bf6d10ba
  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. .clang-format
  14. .clang-tidy
  15. .gitattributes
  16. .gitignore
  17. .gn
  18. AUTHORS
  19. BUILD.gn
  20. CMakeLists.txt
  21. CMakeSettings.json
  22. CODE_OF_CONDUCT.md
  23. codereview.settings
  24. CONTRIBUTING.md
  25. CPPLINT.cfg
  26. dawn.json
  27. dawn_wire.json
  28. DEPS
  29. DIR_METADATA
  30. Doxyfile
  31. go.mod
  32. go.sum
  33. go_presubmit_support.py
  34. LICENSE
  35. OWNERS
  36. PRESUBMIT.py
  37. README.chromium
  38. README.md
  39. 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.