[glsl][ir] Add `SampleMask` to ShaderIO. This CL updates the ShaderIO polyfill for GLSL IR to support the needed SampleMask conversions. In GLSL, the `in` mask is named `gl_SampleMaskIn` and is an array of `i32` values. The output mask is `gl_SampleMask` and is an array of `i32` values. The ShaderIO code is updated to access the given arrays and bitcast the values to/from the WGSL `u32` sample mask values. Bug: 42251044 Change-Id: I9498a988f00d8fa8f2f4aca3a0de443643b34b56 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/208334 Commit-Queue: dan sinclair <dsinclair@chromium.org> Reviewed-by: James Price <jrprice@google.com>
Dawn is an open-source and cross-platform implementation of the 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.h version that Dawn implements.webgpu.h.Helpful links:
Developer documentation:
User documentation: (TODO, figure out what overlaps with the webgpu.h docs)
BSD 3-Clause License, please see LICENSE.
This is not an officially supported Google product.