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dawn / dawn / refs/heads/chromium/5908
commit08419c5581e0523229dca8b415e8db8db6585a17[log] [tgz]
authorJiawei Shao <jiawei.shao@intel.com>Mon Jul 24 02:37:14 2023 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Mon Jul 24 02:37:14 2023 +0000
treeb26abc622c9a21489c91e5d1f1b6edfa4efd828b
parent408509f6297ac7cbaf8ecaacb3fffdeb100965de [diff]
D3D12: Fix resource placement alignment for textures

This patch fixes resource placement aligment for textures by always
trying to use small placement alignment first so that we can have a
chance to allocate less memory for small-sized textures. When
GetResourceAllocationInfo() shows we cannot use small placement
alignment we can call GetResourceAllocationInfo() again with 0 as
alignment to get the correct system alignment.

Previously we always directly use 0 as alignment for resource heap
tier 2, so we won't be able to use small placement alignment because
according to D3D12 SPEC, if Alignment is set to 0, the runtime will
always use 4MB for MSAA textures and 64KB for everything else.

Bug: dawn:282
Test: dawn_end2end_tests
Change-Id: I425e7454e481d24317eb8a2e760e234c698e575f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/142220
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2 files changed
tree: b26abc622c9a21489c91e5d1f1b6edfa4efd828b
  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.