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dawn/dawn/ecdd3ba43e622f2b6d5a2b2fdc4b38e04bd8fc0b
commit
ecdd3ba43e622f2b6d5a2b2fdc4b38e04bd8fc0b
[log] [tgz]
author
Corentin Wallez <cwallez@chromium.org>
Mon Jul 21 06:15:03 2025 -0700
committer
Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>
Mon Jul 21 06:15:03 2025 -0700
tree
dae82dae45fe99522366ae53080e7bde051d49ce
parent
cd155b7c0cc0c0204082d77407074e2cd0e18937 [diff]
[dawn][opengl] Support combined samplers for binding_array

The OpenGL backend needs to transform all of the uses of textures into
combined samplers and textures. binding_array needs to be supported
there by using multiple texture units per combined sampler if needed.

Changes are:
 - In PipelineGL loop over the binding_array if needed when assigning
   texture units.
 - SizedBindingArrayTests are enabled on OpenGL.
 - Creation of the placeholder sampler in PipelineGL is changed to use
   the reentrant Device::CreateSampler which has a known default
   descriptor.
 - One of the binding array tests for oversized array in the BGL had the
   WGSL binding_array with the same size as the BGL which was not what
   was intended to be tested.
 - Adds a suppression for a test that's not passing on GL yet.
 - Adds a targeted test for the logic added in PipelineGL.

Bug: 411573957
Change-Id: I8144c68466e8073144db9b222df2a9845b1d4f51
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/252834
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
4 files changed
tree: dae82dae45fe99522366ae53080e7bde051d49ce
  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-format-ignore
  20. .clang-tidy
  21. .git-blame-ignore-revs
  22. .gitattributes
  23. .gitignore
  24. .gitmodules
  25. .gn
  26. .style.yapf
  27. .vpython3
  28. AUTHORS
  29. BUILD.bazel
  30. BUILD.gn
  31. CMakeLists.txt
  32. CMakeSettings.json
  33. CODE_OF_CONDUCT.md
  34. codereview.settings
  35. CONTRIBUTING.md
  36. CPPLINT.cfg
  37. DEPS
  38. DIR_METADATA
  39. go.mod
  40. go.sum
  41. go_presubmit_support.py
  42. LICENSE
  43. OWNERS
  44. PRESUBMIT.py
  45. README.chromium
  46. README.md
  47. WATCHLISTS
  48. 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.