Fix DXC shader source not showing up in PIX

Unlike FXC, DXC does not embed debug ingo in the shader object by
default. We must enable this via "/Qembed_debug".

Although not required, we also make sure to handle
D3DCOMPILE_SKIP_OPTIMIZATION by passing in "/Od", as this flag is also
enabled along with D3DCOMPILE_DEBUG when "emit_hlsl_debug_symbols"
is enabled.

Note when DXC parses optimization flags, /O[0-3[ and /Od, it will pick
the very last one that's passed in, so we make sure to pass in /Od last.
We should probably ensure that we only ever set one of these in Dawn to
avoid confusion.

Bug: dawn:2339
Change-Id: Icdfcd46a4360ac5ffa4ad31f36698897fbbba854
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/169761
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
1 file changed
tree: d1edfded3fdb2aa96cf9aeaeb632b0e6a83ceae9
  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. .bazelrc
  15. .clang-format
  16. .clang-tidy
  17. .gitattributes
  18. .gitignore
  19. .gitmodules
  20. .gn
  21. AUTHORS
  22. BUILD.bazel
  23. BUILD.gn
  24. CMakeLists.txt
  25. CMakeSettings.json
  26. CODE_OF_CONDUCT.md
  27. codereview.settings
  28. CONTRIBUTING.md
  29. CPPLINT.cfg
  30. DEPS
  31. DIR_METADATA
  32. Doxyfile
  33. go.mod
  34. go.sum
  35. go_presubmit_support.py
  36. LICENSE
  37. OWNERS
  38. PRESUBMIT.py
  39. README.chromium
  40. README.md
  41. 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.