Rolling 4 dependencies

Roll third_party/SPIRV-Tools/ 9eb1c9a4c..253806adc (20 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools/+log/9eb1c9a4c450..253806adc4c6

$ git log 9eb1c9a4c..253806adc --date=short --no-merges --format='%ad %ae %s'
2019-10-10 afdx spirv-fuzz: Add fuzzer pass to change loop controls (#2949)
2019-10-10 afdx Fixed include paths and order according to Google style. (#2957)
2019-10-09 ehsannas Use a longer timeout for Bazel tests. (#2956)
2019-10-09 rharrison Remove non-existent files from BUILD.gn (#2955)
2019-10-09 alanbaker Disable scope validation for OpReadClockKHR (#2953)
2019-10-09 cwallez CMake: Add support for building with emscripten (#2948)
2019-10-09 stevenperron Update CHANGES
2019-10-08 stevenperron Link cfg and dominator analysis in the context (#2946)
2019-10-08 afdx spirv-fuzz: add transformation and pass to construct composites (#2941)
2019-10-08 paulthomson reduce: improve remove unref instr pass (#2945)
2019-10-08 afdx spirv-fuzz: add disabled test to document known issue (#2942)
2019-10-08 afdx spirv-fuzz: Add fuzzer pass to change selection controls (#2944)
2019-10-07 jeremy-lunarg Enable OpTypeCooperativeMatrix specialization (#2927)
2019-10-04 stevenperron Handle OpKill better (#2933)
2019-10-04 greg Generate null pointer by converting uint64 zero to pointer. (#2935)
2019-10-03 afdx spirv-fuzz: option to convert shader into a form that renders red (#2934)
2019-10-03 32110296+AaronHaganAMD Add SPV_KHR_shader_clock validation (#2879)
2019-10-03 paulthomson reduce/fuzz: improve command line args (#2932)
2019-10-02 alanbaker Validate physical storage buffer restrictions (#2930)
2019-10-01 paulthomson fuzz: add shrinker-temp-file-prefix (#2928)

Roll third_party/glslang/ 7bc047326..4b97a1108 (5 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/glslang/+log/7bc047326e06..4b97a1108114

$ git log 7bc047326..4b97a1108 --date=short --no-merges --format='%ad %ae %s'
2019-10-06 dj2 single line
2019-10-03 dj2 Update appveyor and travis files
2019-10-03 dj2 Move install directory for SPIRV/ folder.
2019-09-29 cepheus HLSL: Fix #1912: add attribute syntax for nonreadable/nonwritable
2019-09-27 cepheus HLSL: Fix #1912: add attribute syntax for overriding image formats.

Roll third_party/shaderc/ 621605ce2..65adcb504 (3 commits)

https://chromium.googlesource.com/external/github.com/google/shaderc/+log/621605ce2644..65adcb504d02

$ git log 621605ce2..65adcb504 --date=short --no-merges --format='%ad %ae %s'
2019-10-09 rharrison Add in shaderc_features.gni to support build time flags (#837)
2019-10-09 rharrison Rolling 5 dependencies (#836)
2019-10-09 rharrison Add spvc compiler to returned result (#828)

Roll third_party/spirv-headers/ 842ec9067..b252a5095 (1 commit)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Headers/+log/842ec9067462..b252a50953ac

$ git log 842ec9067..b252a5095 --date=short --no-merges --format='%ad %ae %s'
2019-09-24 lukasz.gotszald add cmake option SPIRV_HEADERS_SKIP_INSTALL

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

Change-Id: I19a3d341592605350e9f3e9d16aa60d0893d75bc
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/12060
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
1 file changed
tree: 134190e48c709b842baf158804f8f1e73aa29f38
  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.
  • 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 and Android 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

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.