commit | 2cbdafd9f3c2f0cec7210a5b22917ff44c903af9 | [log] [tgz] |
---|---|---|
author | Tint team <no-reply@google.com> | Fri Jan 06 10:07:56 2023 +0000 |
committer | Tint LUCI CQ <tint-scoped@luci-project-accounts.iam.gserviceaccount.com> | Fri Jan 06 10:07:56 2023 +0000 |
tree | 11b35fd8d52b1723c409ff775c1683f499531195 | |
parent | d7482db884778c58ac59ebc5bbf3debd855df9f7 [diff] |
Import Tint changes from Dawn Changes: - 529c3fd385502b63a296ac306284cd6036664099 Add clone into constant/ by dan sinclair <dsinclair@chromium.org> - 128980f218ca97dc1751a24c82791a0b0c29751f tint: Add support for workgroupUniformLoad by James Price <jrprice@google.com> - f8abdc7aefc55d08cbdfc2ba3fd7a315486e074e Add ability to clone types. by dan sinclair <dsinclair@chromium.org> - 8e68a89cfb753cae7d1f156a714127d3c8a1de08 Vulkan: Clamp @builtin(frag_depth) with push constant val... by Corentin Wallez <cwallez@chromium.org> GitOrigin-RevId: 529c3fd385502b63a296ac306284cd6036664099 Change-Id: I6e84ba7a74571e15aa172115376b2d00ba9d98e5 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/116368 Reviewed-by: Ben Clayton <bclayton@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Ben Clayton <bclayton@google.com>
Note: This repo is read-only, minimized mirror of the Dawn repo.
Tint changes should be made in the Dawn repo.
Tint is a compiler for the WebGPU Shader Language (WGSL).
This is not an officially supported Google product.
TINT_BUILD_SPV_READER
: enable the SPIR-V input reader (off by default)TINT_BUILD_WGSL_READER
: enable the WGSL input reader (on by default)TINT_BUILD_SPV_WRITER
: enable the SPIR-V output writer (on by default)TINT_BUILD_WGSL_WRITER
: enable the WGSL output writer (on by default)TINT_BUILD_FUZZERS
: enable building fuzzzers (off by default)Tint uses Chromium dependency management so you need to install depot_tools and add it to your PATH.
# Clone the repo as "tint" git clone https://dawn.googlesource.com/tint tint cd tint # Bootstrap the gclient configuration cp standalone.gclient .gclient # Fetch external dependencies and toolchains with gclient gclient sync
mkdir -p out/Debug cd out/Debug cmake -GNinja ../.. ninja # or autoninja
mkdir -p out/Debug cd out/Debug cmake ../.. make # -j N for N-way parallel build
mkdir -p out/Debug gn gen out/Debug autoninja -C out/Debug
If you are attempting fuzz, using TINT_BUILD_FUZZERS=ON
, the version of llvm in the XCode SDK does not have the needed libfuzzer functionality included.
The build error that you will see from using the XCode SDK will look something like this:
ld: file not found:/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/11.0.0/lib/darwin/libclang_rt.fuzzer_osx.a
The solution to this problem is to use a full version llvm, like what you would get via homebrew, brew install llvm
, and use something like CC=<path to full clang> cmake ..
to setup a build using that toolchain.
The gn based work flow uses the Chromium toolchain for building in anticipation of integration of Tint into Chromium based projects. This toolchain has additional plugins for checking for style issues, which are marked with [chromium-style] in log messages. This means that this toolchain is more strict then the default clang toolchain.
In the future we will have a CQ that will build this work flow and flag issues automatically. Until that is in place, to avoid causing breakages you can run the [chromium-style] checks using the CMake based work flows. This requires setting CC
to the version of clang checked out by gclient sync
and setting the TINT_CHECK_CHROMIUM_STYLE
to ON
.
mkdir -p out/style cd out/style cmake ../.. CC=../../third_party/llvm-build/Release+Asserts/bin/clang cmake -DTINT_CHECK_CHROMIUM_STYLE=ON ../../ # add -GNinja for ninja builds
Please file any issues or feature requests at https://bugs.chromium.org/p/tint/issues/entry
Please see the contributing guide in the Dawn repo.