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00dbf0bf67
Works around issues on Metal Intel where CopyB2T and WriteTexture with depth/stencil textures do not work correctly. Fixes test failures with depth16unorm in the CTS. Deletes UseTempTextureInStencilTextureToBufferCopy in favor of the stencil blit. The former supposedly fixes a problem where the stencil data is not flushed into the real stencil texture by performing another T2T copy. This only works because the Metal Intel backend also happens to allocate s8 as d32s8. Copying the depth aspect as well seems to make the driver remember to flush the data. The stencil blit is a better fix for the problem since entirely avoids getting the driver into a bad state where the stencil data is not in sync. Fixed: dawn:1389 Change-Id: If34b1d58996157036c164a5bc329e38b5e53f67a Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/117910 Reviewed-by: Loko Kung <lokokung@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Austin Eng <enga@chromium.org>
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, Metal, Vulkan and OpenGL. See per API support for more details.
- 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) that can be used in standalone to convert shaders from and to 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.