gpufft 0.1.3

Unified GPU-accelerated FFT for Rust: Vulkan via VkFFT, CUDA via cuFFT.
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//! Vulkan↔CUDA zero-copy interop (Linux only, both backends required).
//!
//! - [`SharedMemory`]: host-visible mirror.
//! - [`SharedFftBuffer`]: device-local FFT-ready memory.

#![cfg(all(feature = "vulkan", feature = "cuda", target_os = "linux"))]

mod memory;
mod fft_buffer;

pub use memory::SharedMemory;
pub use fft_buffer::SharedFftBuffer;

use thiserror::Error;

/// Errors produced by the [`shared`](self) module.
///
/// Wraps Vulkan and CUDA failures as formatted strings so the caller does not
/// need to depend on both backend error types simultaneously.
#[derive(Debug, Error)]
pub enum SharedMemoryError {
    /// A Vulkan API call failed during shared-memory setup or teardown.
    #[error("shared-memory interop (Vulkan): {0}")]
    Vulkan(String),

    /// A CUDA Runtime API call failed during shared-memory setup or teardown.
    #[error("shared-memory interop (CUDA): {0}")]
    Cuda(String),
}