| # SPIR-V Reader |
| |
| This component translates SPIR-V written for Vulkan into the Tint AST. |
| |
| The SPIR-V reader entry point is `tint::reader::spirv::Parser`, which |
| implements the Reader interface in `tint::reader::Reader`. |
| |
| It's usable from the Tint command line: |
| |
| # Translate SPIR-V into WGSL. |
| tint --format wgsl a.spv |
| |
| ## Supported dialects |
| |
| The SPIR-V module must pass validation for the Vulkan 1.1 environment in SPIRV-Tools. |
| In particular, SPIR-V 1.4 and later are not supported. |
| |
| For example, the equivalent of the following must pass: |
| |
| spirv-val --target-env vulkan1.1 a.spv |
| |
| Additionally, the reader imposes additional constraints based on: |
| |
| * The features supported by WGSL. Some Vulkan features might not be supportable because |
| WebGPU must be portable to other graphics APIs. |
| * Limitations of the reader itself. These might be relaxed in the future with extra |
| engineering work. |
| |
| ## Feedback |
| |
| Please file issues at https://crbug.com/tint, and apply label `SpirvReader`. |
| |
| Outstanding issues can be found by using the `SpirvReader` label in the Chromium project's |
| bug tracker: https://bugs.chromium.org/p/tint/issues/list?q=label:SpirvReader |
