Struct ffimage::packed::dynamic::ImageView

pub struct ImageView<'a> { /* fields omitted */ }

Image view parametrized by its pixel type

Implementations

impl<'a> ImageView<'a>

pub fn new<T: 'static>(raw: &'a [T], width: u32, height: u32) -> Option<Self>

Returns an image view with unknown pixel type

Arguments

• raw - Raw memory region to interpret as typed image
• width - Width in pixels
• height - Height in pixels

Example

use ffimage::packed::dynamic::ImageView;

let mem = vec![0; 12];
let view = ImageView::new(&mem, 2, 2);

pub fn with_stride<T: 'static>(
    raw: &'a [T],
    width: u32,
    height: u32,
    stride: usize
) -> Option<Self>

Returns an image view with unknown pixel type

Arguments

• raw - Raw memory region to interpret as typed image
• width - Width in pixels
• height - Height in pixels
• stride - Length of a pixel row in bytes

Example

use ffimage::packed::dynamic::ImageView;

let mem: Vec<u8> = vec![0; 12];
let view = ImageView::with_stride(&mem, 2, 2, 6)
    .expect("Memory region too small");

pub fn raw(&self) -> &MemoryView

Returns the raw memory

pub fn width(&self) -> u32

Returns the width in pixels

pub fn height(&self) -> u32

Returns the height in pixels

pub fn stride(&self) -> usize

Returns the length of one image row in bytes

Trait Implementations

impl<'a, '_> From<&'_ ImageView<'a>> for ImageBuffer

fn from(input: &ImageView<'a>) -> Self

Performs the conversion.

impl<'a, T, '_> TryFrom<&'_ ImageView<'a>> for GenericImageView<'a, T> where
    T: Pixel<T = u8>, 

type Error = ()

The type returned in the event of a conversion error.

fn try_from(input: &ImageView<'a>) -> Result<Self, Self::Error>

Performs the conversion.