commit	63f98f6e19e4ed076a780c5b0d1d5cd392bb7bc6	[log] [tgz]
author	Ryan Harrison <rharrison@chromium.org>	Thu Oct 17 19:23:02 2019 +0000
committer	Commit Bot service account <commit-bot@chromium.org>	Thu Oct 17 19:23:02 2019 +0000
tree	af223d4f182783ff8c44a7177a7d555fe50f5ac5
parent	92a011a253a8dd2f3b13477b982ea98d0f4e2dca [diff]

Rolling 4 dependencies

Roll third_party/SPIRV-Tools/ 253806adc..e3da3143b (14 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools/+log/253806adc4c6..e3da3143b2fb

$ git log 253806adc..e3da3143b --date=short --no-merges --format='%ad %ae %s'
2019-10-17 kubak Disallow use of OpCompositeExtract/OpCompositeInsert with no indices (#2980)
2019-10-17 rharrison Add fuzzer for spirv-dis call path (#2977)
2019-10-17 rharrison Check binary->code existence before destroying (#2979)
2019-10-17 akb825 Improved CMake install step. (#2963)
2019-10-16 kubak Support constant-folding UConvert and SConvert (#2960)
2019-10-16 rharrison Add fuzzer for spirv-as call path (#2976)
2019-10-15 afdx spirv-fuzz: Refactor 'copy object' and 'construct composite' transformations (#2966)
2019-10-15 dneto Update SPIR-V binary header test for SPIR-V 1.5 (#2967)
2019-10-14 afdx spirv-fuzz: Refactor 'split blocks' to identify instructions differently (#2961)
2019-10-11 alanbaker Validate that selections are structured (#2962)
2019-10-11 afdx spirv-fuzz: Rework id descriptors (#2959)
2019-10-11 afdx spirv-fuzz: Add fuzzer pass to add NoContraction decorations (#2950)
2019-10-11 afdx spirv-fuzz: Add fuzzer pass to change function controls (#2951)
2019-10-10 paulthomson reduce: add large tests and fix (#2947)

Roll third_party/glslang/ 4b97a1108..834ee546f (23 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/glslang/+log/4b97a1108114..834ee546f93d

$ git log 4b97a1108..834ee546f --date=short --no-merges --format='%ad %ae %s'
2019-10-17 jbolz Only apply volatile semantics to atomics when using Vulkan Memory Model
2019-10-16 dsinclair Use commandline options instead of ENV variables
2019-10-16 rharrison Keep code style improvements
2019-10-16 dsinclair Indenting
2019-10-15 dsinclair Update CMakeLists.txt
2019-10-15 dsinclair Move TARGETDIR as well
2019-10-15 dsinclair Make runtests configurable.
2019-10-15 rharrison Fix config issues and revert previous fixes for semi-colon issues
2019-10-16 swda.durl Added an option to make pch enabled in Cmake
2019-10-15 wahlster find Python and add External subdir only if BUILD_EXTERNAL option was set (on by default) and /External dir exists
2019-10-14 cepheus GLSL/SPV: Pre SPIR-V 1.5, subgroupQuadBroadcast index must be constant
2019-10-12 geothrock remove redundant check
2019-10-12 Xottab-DUTY Fixed typo in README.md
2019-10-11 rharrison Forgot that GCC doesn't recognize this flag
2019-10-11 rharrison Remove unnecessary semi-colons and add warning about them
2019-10-10 cepheus Fix #1924: Promote SPV_EXT_physical_storage_buffer to KHR when required.
2019-10-10 greg Update spirv-tools known good.
2019-10-10 cepheus Fix #1924: Emit SPV_EXT_physical_storage_buffer, not the KHR form.
2019-09-04 lryer Fix code style issue and remove setXfbBufferStride new paramte
2019-09-02 lryer Adjusting code interface
2019-08-25 geothrock Add support for GL_ARB_explicit_uniform_location
2019-08-06 james.rumble Handle install vs build include directories
2019-08-06 james.rumble Export glslang targets on installation

Roll third_party/spirv-cross/ e5d3a6655..a92668bc1 (8 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Cross/+log/e5d3a6655e13..a92668bc118a

$ git log e5d3a6655..a92668bc1 --date=short --no-merges --format='%ad %ae %s'
2019-10-17 post Fix OpVectorExtractDynamic with spec constant op index.
2019-10-16 post Travis: Update PATH for Python3 on Windows.
2019-10-14 post MSL: Add opt-in support for huge IABs.
2019-10-14 post HLSL: Fix unrolled S/G LE/LT/GE/GT opcodes.
2019-10-14 post GLSL: Deal correctly with bitwidth on integer compares.
2019-10-14 post HLSL: Partially implement Unordered compare.
2019-10-14 post GLSL: Support unordered floating point compare.
2019-10-11 post MSL: Fix regression with OpCompositeConstruct from std140 float[].

Roll third_party/spirv-headers/ b252a5095..af64a9e82 (2 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Headers/+log/b252a50953ac..af64a9e826bf

$ git log b252a5095..af64a9e82 --date=short --no-merges --format='%ad %ae %s'
2019-10-15 cepheus Versioning: Complete the versioning change in recent commits.
2019-10-14 nicolai.haehnle buildHeaders: update version to 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: I0396a3e0e20e7cfc74603ef60512c2c715eb2c70
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/12440
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>

DEPS[diff]

1 file changed

tree: af223d4f182783ff8c44a7177a7d555fe50f5ac5

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.