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use crate::{
pixel::Pixel,
ser::{Sink, Source},
view::View,
};
use std::ops::{Index, IndexMut};
#[derive(Debug, Clone)]
pub struct Frame {
pub size: (usize, usize),
buffer: Vec<Vec<Pixel>>,
}
impl Frame {
pub fn new(size: (usize, usize)) -> Self {
Self {
size,
buffer: (0..size.0)
.map(|_| (0..size.1).map(|_| Pixel::default()).collect())
.collect(),
}
}
pub fn read(source: &mut impl Source, size: (usize, usize)) -> anyhow::Result<Self> {
let mut frame = Frame::new(size);
for y in 0..size.1 {
for x in 0..size.0 {
let pixel = source.get::<Pixel>()?;
frame[(x, y)] = pixel;
}
}
Ok(frame)
}
pub fn write(&self, sink: &mut impl Sink) -> anyhow::Result<()> {
for y in 0..self.size.1 {
for x in 0..self.size.0 {
sink.put(self[(x, y)])?;
}
}
Ok(())
}
pub fn view<'a>(&'a self) -> View<&'a Frame> {
View::new(self, (0, 0), self.size)
}
pub fn view_mut<'a>(&'a mut self) -> View<&'a mut Frame> {
View::new(self, (0, 0), self.size)
}
pub fn view_area<'a>(
&'a self,
offset: (usize, usize),
size: (usize, usize),
) -> View<&'a Frame> {
View::new(self, offset, size)
}
pub fn view_area_mut<'a>(
&'a mut self,
offset: (usize, usize),
size: (usize, usize),
) -> View<&'a mut Frame> {
View::new(self, offset, size)
}
}
impl Index<(usize, usize)> for Frame {
type Output = Pixel;
#[inline]
fn index(&self, (x, y): (usize, usize)) -> &Self::Output {
&self.buffer[x][y]
}
}
impl IndexMut<(usize, usize)> for Frame {
#[inline]
fn index_mut(&mut self, (x, y): (usize, usize)) -> &mut Self::Output {
&mut self.buffer[x][y]
}
}
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