Struct ConvertColorOptions 

#[non_exhaustive]
pub struct ConvertColorOptions {
    pub(crate) transform: Option<CicpTransform>,
    pub(crate) _auto_traits: PhantomData<Rc<()>>,
}

Inputs to ImageBuffer::copy_from_color_space.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

transform: Option<CicpTransform>

A pre-calculated transform. This is only used when the actual colors of the input and output image match the color spaces with which the was constructed.

FIXME: Clarify that the transform is cheap to clone, i.e. internally an Arc of precomputed tables and not expensive despite having Clone.

_auto_traits: PhantomData<Rc<()>>

Make sure we can later add options that are bound to the thread. That does not mean that all attributes will be bound to the thread, only that we can add !Sync options later. You should be constructing the options at the call site with each attribute being cheap to move into here.

Implementations

impl ConvertColorOptions

pub(crate) fn as_transform( &mut self, from_color: Cicp, into_color: Cicp, ) -> Result<&CicpTransform, ImageError>

pub(crate) fn as_transform_fn<FromType, IntoType>( &mut self, from_color: Cicp, into_color: Cicp, ) -> Result<&(dyn Fn(&[FromType::Subpixel], &mut [FromType::Subpixel]) + Send + Sync + '_), ImageError>

where FromType: PixelWithColorType, IntoType: PixelWithColorType,

Trait Implementations

impl Default for ConvertColorOptions

fn default() -> ConvertColorOptions

Returns the “default value” for a type.