Crate j2k_jpeg_cuda 

NVIDIA CUDA GPU device-output adapter for j2k-jpeg.

This crate intentionally exposes the same backend-selection surface as the Metal adapter. CPU requests return host-backed surfaces. Scalar auto requests stay on CPU. Explicit CUDA requests use J2K-owned CUDA JPEG decode kernels when the runtime can handle the image, and otherwise return a clear unsupported or unavailable error.

Structs

Codec

JPEG codec marker used by J2K’s generic CUDA decode traits.

CudaSession

Reusable CUDA JPEG decode session.

CudaSurface

Borrowed CUDA-resident JPEG decode surface.

CudaSurfaceStats

Dispatch counters and residency metadata for a CUDA JPEG surface.

Decoder

JPEG decoder that can return host or CUDA-resident surfaces.

DecoderContext

Shared decode context for WSI tile batches.

ScratchPool

Pool of decoder-internal scratch buffers, reusable across many Decoder::decode_into_with_scratch / decode_rows_with_scratch calls.

Surface

Decoded JPEG surface returned by the CUDA adapter.

Enums

CudaJpegDecodePath

CUDA JPEG decode path used to produce a surface.

Error

Errors returned by the CUDA JPEG adapter.