Stephen White 0c7a99f894 Tint/GLSL: rename identifiers containing double-underscores.
This is prohibited by the GLSL ES spec:

"In addition, all identifiers containing two consecutive underscores (__) are reserved for use by underlying
software layers. Defining such a name in a shader does not itself result in an error, but may result in
unintended behaviors that stem from having multiple definitions of the same name."

(https://registry.khronos.org/OpenGL/specs/es/3.1/GLSL_ES_Specification_3.10.withchanges.pdf, section 3.7).

However, while glslang validation will not give an error on this, NVidia
ES drivers will. So I've added a Dawn end2end test instead of a WGSL test.

Bug: tint:1944
Change-Id: I4b965af00039ca7a232bc11be884483f8e02ccf6
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/134140
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
2023-05-26 04:53:17 +00:00
2023-05-22 15:16:39 +00:00
2023-05-18 00:23:27 +00:00
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2023-05-08 17:04:38 +00:00
2022-06-18 16:16:11 +00:00
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2020-03-02 15:47:43 -05:00
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2021-12-02 21:25:58 +00:00

Dawn's logo: a sun rising behind a stylized mountain inspired by the WebGPU logo. The text "Dawn" is written below it.

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.h version that Dawn implements.
    • A C++ wrapper for the webgpu.h.
  • 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:

Documentation table of content

Developer documentation:

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.

Description
CMake-only fork of https://dawn.googlesource.com/dawn with cleaned, vendored dependencies
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