spv-out: implement OpArrayLength on array buffer bindings #5428
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teoxoy
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Apr 2, 2024
jimblandy
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Sep 27, 2024
Require `T` to be a struct in `binding_array<T, ...>`; do not permit arrays. In gfx-rs#5428, the validator was changed to accept binding array types that the SPIR-V backend couldn't properly emit. Specifically, the validator was changed to accept `binding_array<array<T>>`, but the SPIR-V backend wasn't changed to wrap the binding array elements in a SPIR-V struct type, as Vulkan requires. So the type would be accepted by the validator, and then rejected by the backend.
jimblandy
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that referenced
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Sep 28, 2024
Require `T` to be a struct in `binding_array<T, ...>`; do not permit arrays. In #5428, the validator was changed to accept binding array types that the SPIR-V backend couldn't properly emit. Specifically, the validator was changed to accept `binding_array<array<T>>`, but the SPIR-V backend wasn't changed to wrap the binding array elements in a SPIR-V struct type, as Vulkan requires. So the type would be accepted by the validator, and then rejected by the backend.
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Connections
Port of gfx-rs/naga#2372
Fixes #4556 for SPV-out
Description
See #4556
Testing
Changes are in "binding-buffer-arrays.wgsl"
Checklist
cargo fmt.cargo clippy. If applicable, add:--target wasm32-unknown-unknown--target wasm32-unknown-emscriptencargo xtask testto run tests.CHANGELOG.md. See simple instructions inside file.