Roll third_party/SPIRV-Tools/ 5a93e0739..0c4feb643 (5 commits)5a93e07392..0c4feb643b
$ git log 5a93e0739..0c4feb643 --date=short --no-merges --format='%ad %ae %s' 2019-07-08 33432579+alan-baker Remove extra semis (#2717) 2019-07-08 33432579+alan-baker Validate usage of 8- and 16-bit types with only storage capabilities (#2704) 2019-07-07 afdx Shrinker for spirv-fuzz (#2708) 2019-07-04 stevenperron Perform merge return with single return in loop. (#2714) 2019-07-04 stevenperron Do not inline OpKill Instructions (#2713) Roll third_party/glslang/ 4b4b41a63..8aa9a7bb8 (1 commit)4b4b41a634..8aa9a7bb8f
$ git log 4b4b41a63..8aa9a7bb8 --date=short --no-merges --format='%ad %ae %s' 2019-07-06 rex.xu Change implementation of gl_SIMDGroupSizeAMD Roll third_party/shaderc/ 77d7b65ee..e9bb8f287 (2 commits)77d7b65ee2..e9bb8f2874
$ git log 77d7b65ee..e9bb8f287 --date=short --no-merges --format='%ad %ae %s' 2019-07-08 zoddicus Add verbose flag to run_spirv_cross_tests.py (#753) 2019-07-08 zoddicus Rolling 4 dependencies and update known_failures (#755) Roll third_party/spirv-cross/ c5904dd24..53ab2144b (5 commits)c5904dd245..53ab2144b9
$ git log c5904dd24..53ab2144b --date=short --no-merges --format='%ad %ae %s' 2019-07-08 post Fall back to complex loop if non-trivial continue block is found. 2019-07-08 post Add test shaders for NonUniformEXT propagation. 2019-07-08 post Propagate NonUniformEXT to dependent expressions. 2019-07-05 post Add simple test for extended debug operations. 2019-07-04 lifeng.pan Parse SPIR-V debug information extended instructions, as well as OpNoLine. Created with: roll-dep third_party/SPIRV-Tools third_party/glslang third_party/shaderc third_party/spirv-cross third_party/spirv-headers Change-Id: Iabdabe4f0b25f89cbc41f8fbf55bd588b374ba44 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/8740 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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 fromdawn.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/samplesdawn_native
: native implementation of WebGPU, one subfolder per backenddawn_wire
: client-server implementation of WebGPUinclude
: public headers for Dawntests
: internal Dawn testsend2end
: WebGPU tests performing GPU operationsunittests
: unittests and by extension tests not using the GPUvalidation
: 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.