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CMake-only fork of https://dawn.googlesource.com/dawn with cleaned, vendored dependencies
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Ryan Harrison f8c66c72c6 Rolling 4 dependencies 
Roll third_party/SPIRV-Tools/ e2e95172d..08fcf8a4a (22 commits)

e2e95172df..08fcf8a4ab

$ git log e2e95172d..08fcf8a4a --date=short --no-merges --format='%ad %ae %s'
2019-09-19 ehsannas Fix header include syntax. (#2882)
2019-09-19 stevenperron Handle OpConstantNull in copy-prop-arrays. (#2870)
2019-09-19 dneto Fix comment typo found by protobufs linter (#2884)
2019-09-19 dsinclair Move docs into docs/ folder (#2872)
2019-09-18 dsinclair Add WebGPU SPIR-V Assembler in JavaScript. (#2876)
2019-09-18 dneto Android.mk: Add dependency from optimizer file to amd-shader-ballot-insts.inc (#2883)
2019-09-18 dneto Update SPIRV-Headers in DEPS (#2880)
2019-09-18 afdx  Fix detection of blocks bypassed by new edge (#2874)
2019-09-18 afdx Fix CMake issue related to spirv-fuzz (#2877)
2019-09-18 afdx Add fuzzer pass to replace ids with synonyms (#2857)
2019-09-18 alanbaker Relaxed bitcast with pointers (#2878)
2019-09-17 52076061+digit-google Fix Fuchsia build. (#2868)
2019-09-16 raun.krisch Adding valilidation checks for OpEntryPoint duplicate names and execution mode (#2862)
2019-09-16 alanbaker Extra resource interface validation (#2864)
2019-09-13 alanbaker Split capability tests (#2866)
2019-09-13 alanbaker SPIRV-Tools support for SPIR-V 1.5 (#2865)
2019-09-11 afdx Add fuzzer pass to copy objects (#2853)
2019-09-11 rharrison Handle another case where creating a constant can fail (#2854)
2019-09-11 stevenperron Don't inline function containing OpKill (#2842)
2019-09-11 stevenperron Handle id overflow in wrap op kill. (#2851)
2019-09-11 dneto Assembler: Can't set an ID in instruction without result ID (#2852)
2019-09-10 zoddicus Handle creating a new constant failing gracefully (#2848)

Roll third_party/glslang/ 664ad418f..f7a48b153 (14 commits)

664ad418f8..f7a48b153f

$ git log 664ad418f..f7a48b153 --date=short --no-merges --format='%ad %ae %s'
2019-09-17 cepheus SPV_KHR_physical_storage_buffer/SPV: Add GL_EXT_buffer_reference_uvec2
2019-09-16 digit Fix Fuchsia build.
2019-09-17 kainino use custom es6 modularization instead of MODULARIZE=1
2019-09-17 kainino Separate GLSLANG_WEB (min-size build) and Emscripten options
2019-09-18 cepheus README: Fix WASM typos.
2019-09-18 cepheus HLSL: Fix #1903 Catch 0-argument case to constructors.
2019-09-08 jbolz Add GL_EXT_shader_subgroup_extended_types support
2019-08-28 cepheus GLSL: Only require constant for subgroupBroadcast when SPV < 1.5.
2019-08-18 cepheus SPV: Support SPIR-V 1.5; five extensions no longer need OpExtension.
2019-09-09 laddoc Add flags for local size values ( compute shader )
2019-09-13 cepheus SPV 1.5: Switch to the 1.5 header, for SPIR-V 1.5.
2019-09-11 dsinclair Comment out params instead of removing
2019-09-10 dsinclair Remove unused params
2019-09-09 rex.xu Fix incorrect function prototypes of 64-bit findLSB/findMSB

Roll third_party/spirv-cross/ b32a1b415..5431e1da2 (7 commits)

b32a1b4150..5431e1da2d

$ git log b32a1b415..5431e1da2 --date=short --no-merges --format='%ad %ae %s'
2019-09-19 post Update SPIR-V headers.
2019-09-19 post MSL: Fix 16-bit integer literals.
2019-09-18 rharrison Update external/ to SPIR-V 1.5
2019-09-18 post CMake: Add option to force -fPIC.
2019-09-17 post Fix -Wshorten-64-to-32 warnings.
2019-09-16 post CMake: Add option to skip installation targets.
2019-09-12 post Consider discard and demote as impure statements.

Roll third_party/spirv-headers/ 38cafab37..601d73872 (2 commits)

38cafab379..601d738723

$ git log 38cafab37..601d73872 --date=short --no-merges --format='%ad %ae %s'
2019-09-18 cepheus Add SPV_KHR_physical_storage_buffer.
2019-09-13 cepheus SPIR-V 1.5.

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

Change-Id: I9a50caaec13661e60126b9d3e6b4fc63863d25f3
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/11381
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
 		2019-09-19 21:08:12 +00:00
build_overrides Tell shaderc where to find SPIRV-Cross. 2018-12-14 20:33:50 +00:00
docs Add .gitattributes to normalize EOL 2019-07-15 12:23:18 +00:00
examples Remove indirection for computeStage 2019-09-05 09:41:17 +00:00
generator BUILD.gn: Add a check generated files are in allowed dirs. 2019-09-18 23:19:31 +00:00
infra/config [infra/config] Bump OS X SDK version for dawn. 2019-08-09 01:19:04 +00:00
scripts Enable Vulkan for Chromium Fuchsia build. 2019-09-09 10:52:08 +00:00
src Check if allocation is valid before deallocating. 2019-09-19 20:40:12 +00:00
third_party BUILD.gn: Correctly skip GLFW on ChromeOS 2019-09-12 16:33:31 +00:00
.clang-format Add .clang-format 2017-11-28 16:18:39 -05:00
.gitattributes Add .gitattributes to normalize EOL 2019-07-15 12:23:18 +00:00
.gitignore Update .gitignore 2019-08-21 14:13:33 +00:00
.gn PRESUBMIT.py: Add formatting checks. 2018-09-11 08:06:36 -04:00
AUTHORS Rename NXT -> Dawn in the comments 2018-07-18 22:54:06 +02:00
BUILD.gn Remove device dependencies from ringbuffer. 2019-09-18 22:06:41 +00:00
CONTRIBUTING.md Remove references to Github in README and CONTRIBUTING 2018-10-08 13:51:18 +00:00
DEPS Rolling 4 dependencies 2019-09-19 21:08:12 +00:00
LICENSE Initial commit of all the NXT integration. 2017-04-20 14:38:20 -04:00
OWNERS Add component to OWNERS and fixup repo URL in README.chromium 2018-09-25 20:53:37 +00:00
PRESUBMIT.py PRESUBMIT.py: Add formatting checks. 2018-09-11 08:06:36 -04:00
README.chromium Add component to OWNERS and fixup repo URL in README.chromium 2018-09-25 20:53:37 +00:00
README.md README.md: Add a link to the mailing list. 2018-12-12 16:14:53 +00:00
codereview.settings Initial CQ configuration 2018-08-23 08:33:35 -04:00
dawn.json Implement BGLBinding::textureDimension 2019-09-10 08:58:28 +00:00
dawn_wire.json Add empty implementations of Push/PopErrorScope 2019-09-04 22:54:03 +00:00

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.