prgpu-macro

Procedural macros backing prgpu. You don't add this crate to your Cargo.toml directly — prgpu re-exports everything you need.

What's in here

• #[gpu_struct] — declarative struct-layout codegen: cross-target (Metal / CUDA / CPU) padding, explicit offset validation, and optional bytemuck::{Pod, Zeroable} derives. The macro guarantees that the emitted Rust struct byte-matches the layout expected by the Slang-generated shader code, so #[repr(C)] kernel params can round-trip through a ConstantBuffer<T> without hand-written padding.
• Related attribute parsing (targets, align, allow_vec3, allow_bool, bytemuck, pad, strict, emit_offsets, debug_layout) that let effect authors opt into stricter ABI guarantees or bypass them on a per-struct basis.

Stability

prgpu-macro follows prgpu's release cadence. Pin your dependency on prgpu only — its Cargo.toml already selects a compatible prgpu-macro version transitively.

License

Dual-licensed under MIT OR Apache-2.0.