Struct J2kDecoder 

pub struct J2kDecoder<'a> { /* private fields */ }

CUDA-facing JPEG 2000 decoder wrapper.

Implementations

impl<'a> J2kDecoder<'a>

pub fn new(input: &'a [u8]) -> Result<Self, Error>

Create a CUDA-facing decoder from compressed bytes.

pub fn decode_to_device_with_session( &mut self, fmt: PixelFormat, session: &mut CudaSession, ) -> Result<Surface, Error>

Strictly decode a full HTJ2K image into a CUDA-backed surface using an existing backend session.

pub fn decode_batch_to_device_with_session( inputs: &[&[u8]], fmt: PixelFormat, session: &mut CudaSession, ) -> Result<Vec<Surface>, Error>

Strictly decode a batch of full HTJ2K images into CUDA-backed surfaces using an existing backend session.

pub fn decode_to_host_surface( &mut self, fmt: PixelFormat, ) -> Result<Surface, Error>

Decode a full image through the CPU path and wrap it as a host surface.

pub fn decode_to_cpu_staged_cuda_surface_with_session( &mut self, fmt: PixelFormat, session: &mut CudaSession, ) -> Result<Surface, Error>

Decode a full image on CPU and upload it into a CUDA buffer using an existing backend session.

pub fn decode_region_to_cpu_staged_cuda_surface_with_session( &mut self, fmt: PixelFormat, roi: Rect, session: &mut CudaSession, ) -> Result<Surface, Error>

Decode a region on CPU and upload it into a CUDA buffer using an existing backend session.

pub fn decode_scaled_to_cpu_staged_cuda_surface_with_session( &mut self, fmt: PixelFormat, scale: Downscale, session: &mut CudaSession, ) -> Result<Surface, Error>

Decode a scaled image on CPU and upload it into a CUDA buffer using an existing backend session.

pub fn decode_region_scaled_to_cpu_staged_cuda_surface_with_session( &mut self, fmt: PixelFormat, roi: Rect, scale: Downscale, session: &mut CudaSession, ) -> Result<Surface, Error>

Decode a scaled region on CPU and upload it into a CUDA buffer using an existing backend session.