Struct pix::RasterB

pub struct RasterB<F: PixFmt> { /* fields omitted */ }

A raster image with borrowed pixel data. This is more tricky to use than Raster, so it should only be used when pixel data must be owned elsewhere.

Example

use pix::{PixFmt, RasterB, Rgba8};
let mut r = RasterB::<Rgba8>::new(10, 10);
let len = (r.width() * r.height()) as usize;
// NOTE: typically the pixels would be borrowed from some other source
let mut pixels = vec!(0; len * std::mem::size_of::<Rgba8>());
let mut pix = Rgba8::as_slice_mut(&mut pixels);

Methods

impl<F: PixFmt> RasterB<F>

pub fn new(width: u32, height: u32) -> RasterB<F>

Create a new raster image for borrowed pixel data.

• F Pixel format.
• width Width in pixels.
• height Height in pixels.

pub fn width(&self) -> u32

Get raster width.

pub fn height(&self) -> u32

Get raster height.

pub fn clear(&self, pixels: &mut [F])

Clear all pixels.

pub fn mask_over(&self, mask: &[u8], clr: F, pixels: &mut [F])

Blend pixels with an alpha mask.

• mask Alpha mask for compositing.
• clr Color to composite.
• pixels Borrowed pixel data.