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ImageDecodeDevice

j2k_core

Trait ImageDecodeDevice 

Source 
pub trait ImageDecodeDevice<'a>: ImageDecode<'a> {
    type DeviceSurface: DeviceSurface;

    // Provided methods
    fn decode_to_device(
        &mut self,
        fmt: PixelFormat,
        backend: BackendRequest,
    ) -> Result<Self::DeviceSurface, Self::Error>
       where Self: ImageDecodeSubmit<'a, DeviceSurface = Self::DeviceSurface> { ... }
    fn decode_region_to_device(
        &mut self,
        fmt: PixelFormat,
        roi: Rect,
        backend: BackendRequest,
    ) -> Result<Self::DeviceSurface, Self::Error>
       where Self: ImageDecodeSubmit<'a, DeviceSurface = Self::DeviceSurface> { ... }
    fn decode_scaled_to_device(
        &mut self,
        fmt: PixelFormat,
        scale: Downscale,
        backend: BackendRequest,
    ) -> Result<Self::DeviceSurface, Self::Error>
       where Self: ImageDecodeSubmit<'a, DeviceSurface = Self::DeviceSurface> { ... }
    fn decode_region_scaled_to_device(
        &mut self,
        fmt: PixelFormat,
        roi: Rect,
        scale: Downscale,
        backend: BackendRequest,
    ) -> Result<Self::DeviceSurface, Self::Error>
       where Self: ImageDecodeSubmit<'a, DeviceSurface = Self::DeviceSurface> { ... }
}
Expand description

Synchronous device-output decode API.

Required Associated Types§

Source

type DeviceSurface: DeviceSurface

Device surface returned by decode calls.

Provided Methods§

Source

fn decode_to_device( &mut self, fmt: PixelFormat, backend: BackendRequest, ) -> Result<Self::DeviceSurface, Self::Error>
where Self: ImageDecodeSubmit<'a, DeviceSurface = Self::DeviceSurface>,

Decode the full image to the requested backend.

Source

fn decode_region_to_device( &mut self, fmt: PixelFormat, roi: Rect, backend: BackendRequest, ) -> Result<Self::DeviceSurface, Self::Error>
where Self: ImageDecodeSubmit<'a, DeviceSurface = Self::DeviceSurface>,

Decode a source-coordinate region to the requested backend.

Source

fn decode_scaled_to_device( &mut self, fmt: PixelFormat, scale: Downscale, backend: BackendRequest, ) -> Result<Self::DeviceSurface, Self::Error>
where Self: ImageDecodeSubmit<'a, DeviceSurface = Self::DeviceSurface>,

Decode the full image at reduced resolution to the requested backend.

Source

fn decode_region_scaled_to_device( &mut self, fmt: PixelFormat, roi: Rect, scale: Downscale, backend: BackendRequest, ) -> Result<Self::DeviceSurface, Self::Error>
where Self: ImageDecodeSubmit<'a, DeviceSurface = Self::DeviceSurface>,

Decode a source-coordinate region at reduced resolution to the requested backend.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§