1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
use glam::I16Vec2;
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct AbsRef {
pub off: I16Vec2,
pub frame: u64,
}
pub struct Frame(pub Vec<u8>);
impl Frame {
pub fn index(&self, res: I16Vec2, p: I16Vec2) -> [usize; 3] {
let res = res.as_usizevec2();
let p = p.as_usizevec2();
let ystride = res.y;
let ysize = res.x * ystride;
let uvstride = res.x / 2;
let usize = uvstride * (res.y / 2);
let puv = p / 2;
[
p.x + p.y * ystride,
ysize + puv.x + puv.y * uvstride,
ysize + usize + puv.x + puv.y * uvstride,
]
}
pub fn get(&self, res: I16Vec2, p: I16Vec2) -> [u8; 3] {
self.index(res, p).map(|i| self.0[i])
}
}
|
