Struct imagehead::ImageMeta

pub struct ImageMeta {
    pub kind: ImageType,
    pub dimensions: (u32, u32),
    pub size: u32,
}

Stores the type of image and some basic meta-data.

Fields

kind: ImageType

What kind of image it is; PNG, JPEG, etc

dimensions: (u32, u32)

The width and height of the image

size: u32

The length of the image in bytes

Implementations

impl ImageMeta

pub fn from_bytes<T: AsRef<[u8]>>(buf: T) -> Option<Self>

Returns an ImageMeta from the supplied buffer slice. If it is unable to detect an image type it will return None

Examples

let info = match ImageMeta::from_bytes(&png_image) {
	Some(x) => x,
	None => panic!("Unknown image format!");
};
assert_eq!(ImageMeta::Png, info.kind);
assert_eq!( (1920, 1080), info.dimensions);

Trait Implementations

impl Clone for ImageMeta

fn clone(&self) -> ImageMeta

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ImageMeta

impl Debug for ImageMeta

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for ImageMeta

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.