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
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72

use core::{borrow::Borrow, ptr};

use crate::{
    bindings::{Bitmap, BitmapCol, Context2D},
    std_types::{c_int, vec, Vec},
    Math_NextPowOf2,
};

pub struct OwnedContext2D {
    context_2d: Context2D,

    #[allow(dead_code)]
    pixels: Vec<BitmapCol>,
}

impl OwnedContext2D {
    pub fn new(width: c_int, height: c_int, color: BitmapCol) -> Self {
        let mut pixels = vec![color; width as usize * height as usize];
        let scan0 = pixels.as_mut_ptr();

        Self {
            context_2d: Context2D {
                bmp: Bitmap {
                    height,
                    width,
                    scan0,
                },
                height,
                width,
                meta: ptr::null_mut(),
            },
            pixels,
        }
    }

    pub fn new_cleared(width: c_int, height: c_int) -> Self {
        Self::new(width, height, 0x0000_0000)
    }

    pub fn new_pow_of_2(width: c_int, height: c_int, color: BitmapCol) -> OwnedContext2D {
        let width = Math_NextPowOf2(width);
        let height = Math_NextPowOf2(height);

        Self::new(width, height, color)
    }

    pub fn new_pow_of_2_cleared(width: c_int, height: c_int) -> OwnedContext2D {
        Self::new_pow_of_2(width, height, 0x0000_0000)
    }

    pub fn as_context_2d(&self) -> &Context2D {
        &self.context_2d
    }

    pub fn as_context_2d_mut(&mut self) -> &mut Context2D {
        &mut self.context_2d
    }

    pub fn as_bitmap(&self) -> &Bitmap {
        &self.context_2d.bmp
    }

    pub fn as_bitmap_mut(&mut self) -> &mut Bitmap {
        &mut self.context_2d.bmp
    }
}

impl Borrow<Bitmap> for OwnedContext2D {
    fn borrow(&self) -> &Bitmap {
        self.as_bitmap()
    }
}