font_atlas/glyph_packer/
buffer2d.rs

1pub trait Buffer2d: Sized {
2    type Pixel;
3
4    fn width(&self) -> u32;
5    fn height(&self) -> u32;
6
7    fn get(&self, x: u32, y: u32) -> Option<Self::Pixel>;
8    fn set(&mut self, x: u32, y: u32, _val: Self::Pixel);
9
10    fn patch<B: Buffer2d<Pixel=Self::Pixel>>
11    (&mut self, x: u32, y: u32, buf: &B) {
12        let (w, h) = buf.dimensions();
13
14        for sy in 0 .. h {
15            for sx in 0 .. w {
16
17                match buf.get(sx, sy) {
18                    Some(val) => {
19                        self.set(x + sx, y + sy, val);
20                    },
21                    _ => {},
22                }
23            }
24        }
25    }
26
27    fn patch_rotated<B: Buffer2d<Pixel=Self::Pixel>>
28    (&mut self, x: u32, y: u32, buf: &B) {
29        let (w, h) = buf.dimensions();
30
31        for sy in 0 .. h {
32            for sx in 0 .. w {
33                match buf.get(sx, sy) {
34                    Some(val) => {
35                        self.set(x + h - sy - 1, y + sx, val);
36                    },
37                    _ => {},
38                }
39            }
40        }
41    }
42
43    fn dimensions(&self) -> (u32, u32) {
44        (self.width(), self.height())
45    }
46}
47
48pub trait ResizeBuffer: Buffer2d {
49    fn resize(&mut self, width: u32, height: u32);
50}
font_atlas/glyph_packer/buffer2d.rs

font_atlas/glyph_packer/
buffer2d.rs
