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dawn / dawn / e9356045a4e020f4292cdd75fc636289322d17e2
commite9356045a4e020f4292cdd75fc636289322d17e2[log] [tgz]
authorRyan Harrison <rharrison@chromium.org>Mon Nov 25 18:39:00 2019 +0000
committerCommit Bot service account <commit-bot@chromium.org>Mon Nov 25 18:39:00 2019 +0000
tree5f0b4162ed6811534a8955b5b3930c3d3f59e2c8
parent8e9c3f663ccd270b8f047afe668e7cbc15e11bba [diff]
Rolling 3 dependencies

Roll third_party/SPIRV-Tools/ 2ee9aaa28..85f3e93d1 (2 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools/+log/2ee9aaa288d9..85f3e93d13f3

$ git log 2ee9aaa28..85f3e93d1 --date=short --no-merges --format='%ad %ae %s'
2019-11-22 mattst88 Respect CMAKE_INSTALL_LIBDIR in installed CMake files (#3054)
2019-11-20 rharrison Add missing dealloc (#3061)

Roll third_party/glslang/ f4d466852..38b4db48f (6 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/glslang/+log/f4d4668529f1..38b4db48f98c

$ git log f4d466852..38b4db48f --date=short --no-merges --format='%ad %ae %s'
2019-11-23 cepheus Fix #1983: __ is okay starting with ES 300, rather than 310.
2019-11-22 cepheus Fix #1987: Use large enough built-in buffer to hold vec4 of maxint-64.
2019-11-21 dsinclair Check for ENABLE_SPVREMAPPER flag in CMakeList files.
2019-11-18 Arfrever Respect CMAKE_INSTALL_LIBDIR in installed CMake files
2019-11-14 andreas.floejt Add a test for 8- and 16-bit construction.
2019-11-11 andreas.floejt Fix construction issue for 8 and 16 bit types.

Roll third_party/shaderc/ c7f5cfd07..da52fae11 (6 commits)

https://chromium.googlesource.com/external/github.com/google/shaderc/+log/c7f5cfd07f41..da52fae116b3

$ git log c7f5cfd07..da52fae11 --date=short --no-merges --format='%ad %ae %s'
2019-11-21 rharrison Revert "Convert to using standard spirv_cross deps in BUILD.gn (#902)" (#905)
2019-11-21 9856269+sarahM0 Add spvc parser support for OpTypeForwardPointer, OpTypeAccelerationStructureNV (#903)
2019-11-21 rharrison Convert to using standard spirv_cross deps in BUILD.gn (#902)
2019-11-21 rharrison Convert spvc parser flag from build time to runtime (#901)
2019-11-21 9856269+sarahM0 Add spvc parser support for OpGroupDecorate, OpGroupMemberGecorate, OpDecorateStringGOOGLE, and OpMemberDecorateStringGOOGLE (#899)
2019-11-20 9856269+sarahM0 Add spvc parser support for OpUndef, OpString, OpMemberDecorate, OpDecorationGroup, OpLine, and OpNoLine (#898)

Created with:
  roll-dep third_party/SPIRV-Tools third_party/glslang third_party/shaderc third_party/spirv-cross third_party/spirv-headers

Change-Id: I89de33e4bcee1d73e8ee91fcbe8984939fa8fe3e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14034
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
1 file changed
tree: 5f0b4162ed6811534a8955b5b3930c3d3f59e2c8
  1. build_overrides/
  2. docs/
  3. examples/
  4. generator/
  5. infra/
  6. scripts/
  7. src/
  8. third_party/
  9. .clang-format
  10. .gitattributes
  11. .gitignore
  12. .gn
  13. AUTHORS
  14. BUILD.gn
  15. codereview.settings
  16. CONTRIBUTING.md
  17. dawn.json
  18. dawn_wire.json
  19. DEPS
  20. LICENSE
  21. OWNERS
  22. PRESUBMIT.py
  23. README.chromium
  24. README.md
README.md

Dawn, a WebGPU implementation

Dawn (formerly NXT) is an open-source and cross-platform implementation of the work-in-progress WebGPU standard. It exposes a C/C++ API that maps almost one-to-one to the WebGPU IDL and can be managed as part of a larger system such as a Web browser.

Dawn provides several WebGPU building blocks:

  • WebGPU C/C++ headers that applications and other building blocks use.
    • The main C header for the WebGPU API.
    • Definition of a structure of all function pointers for this specific Dawn version (called “proctable”).
    • A C++ wrapper for the C header.
  • A “native” implementation of WebGPU using platforms' GPU APIs:
    • D3D12 on Windows 10
    • Metal on OSX (and eventually iOS)
    • Vulkan on Windows, Linux (eventually ChromeOS, Android and Fuchsia too)
    • OpenGL as best effort where available
  • A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers
  • A Dawn proc-table backend implementation of WebGPU for applications what want to be able to switch at runtime between native or client-server mode.

Directory structure

  • dawn.json: description of the API used to drive code generators.
  • examples: examples showing how Dawn is used.
  • generator: code generator for files produces from dawn.json
    • templates: Jinja2 templates for the generator
  • scripts: scripts to support things like continuous testing, build files, etc.
  • src:
    • common: helper code shared between core Dawn libraries and tests/samples
    • dawn_native: native implementation of WebGPU, one subfolder per backend
    • dawn_wire: client-server implementation of WebGPU
    • include: public headers for Dawn
    • tests: internal Dawn tests
      • end2end: WebGPU tests performing GPU operations
      • unittests: unittests and by extension tests not using the GPU
        • validation: WebGPU validation tests not using the GPU (frontend tests)
    • utils: helper code to use Dawn used by tests and samples
  • third_party: directory where dependencies live as well as their buildfiles.

Building Dawn

Dawn uses the Chromium build system and dependency management so you need to install depot_tools and add it to the PATH.

On Linux you need to have the pkg-config command:

# Install pkg-config on Ubuntu
sudo apt-get install pkg-config

Then get the source as follows:

# Clone the repo as "dawn"
git clone https://dawn.googlesource.com/dawn dawn && cd dawn

# Bootstrap the gclient configuration
cp scripts/standalone.gclient .gclient

# Fetch external dependencies and toolchains with gclient
gclient sync

Then generate build files using gn args out/Debug or gn args out/Release. A text editor will appear asking build options, the most common option is is_debug=true/false; otherwise gn args out/Release --list shows all the possible options.

Then use ninja -C out/Release to build dawn and for example ./out/Release/dawn_end2end_tests to run the tests.

Contributing

Please read and follow CONTRIBUTING.md. Dawn doesn‘t have a formal coding style yet, except what’s defined by our clang format style. Overall try to use the same style and convention as code around your change.

If you find issues with Dawn, please feel free to report them on the bug tracker. For other discussions, please post to Dawn's mailing list.

License

Please see LICENSE.

Disclaimer

This is not an officially supported Google product.