CMake-only fork of https://dawn.googlesource.com/dawn with cleaned, vendored dependencies
e5a67ac891
With abstract materialization, any ast::Expression may map to the new sem::Materialize node. Because of this, we can't assume that an ast::CallExpression maps to a sem::Call, as it might be wrapped by a sem::Materialize. Remove the mapping, and fix up all the code that was relying on this. Fixes are done by either: • Calling `UnwrapMaterialize()->As<sem::Call>()` on the semantic expression. This is done when the logic may assume it's possible for the expression to be a Materialize node. • Using the explicit sem::Info::Get<sem::Call>() template argument to cast the semantic type to sem::Call. This is done when the logic either knows it is impossible for the expression to be a Materialize. The backends have been stubbed, as we'll want to emit the constant value for these nodes. It's likely that we'll just use the FoldConstants transform to strip all Materialize nodes from the tree. For now, be defensive. Bug: tint:1504 Change-Id: If9231b300fc30c7fe886c17a804ead8ee2988285 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90533 Commit-Queue: Ben Clayton <bclayton@chromium.org> Reviewed-by: David Neto <dneto@google.com> |
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README.md
Dawn, a WebGPU implementation
Dawn is an open-source and cross-platform implementation of the work-in-progress WebGPU standard.
More precisely it implements webgpu.h that is a one-to-one mapping with the WebGPU IDL.
Dawn is meant to be integrated as part of a larger system and is the underlying implementation of WebGPU in Chromium.
Dawn provides several WebGPU building blocks:
- WebGPU C/C++ headers that applications and other building blocks use.
- The
webgpu.hversion that Dawn implements. - A C++ wrapper for the
webgpu.h.
- The
- A "native" implementation of WebGPU using platforms' GPU APIs:
- D3D12 on Windows 10
- Metal on macOS and iOS
- Vulkan on Windows, Linux, ChromeOS, Android and Fuchsia
- OpenGL as best effort where available
- A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers
- Tint is a compiler for the WebGPU Shader Language (WGSL).
Helpful links:
- Dawn bug tracker if you find issues with Dawn.
- Tint bug tracker if you find issues with Tint.
- Dawn's mailing list for other discussions related to Dawn.
- Dawn's source code
- Dawn's Matrix chatroom for live discussion around contributing or using Dawn.
- WebGPU's Matrix chatroom
- Tint mirror for standalone usage.
Documentation table of content
Developer documentation:
- Dawn overview
- Building
- Contributing
- Code of Conduct
- Testing Dawn
- Debugging Dawn
- Dawn's infrastructure
- Dawn errors
- Tint experimental extensions
User documentation: (TODO, figure out what overlaps with the webgpu.h docs)
Status
(TODO)
License
Apache 2.0 Public License, please see LICENSE.
Disclaimer
This is not an officially supported Google product.