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
|
#![forbid(unsafe_code)]
use std::mem::size_of;
use vulkanalia::vk::{ self, HasBuilder };
pub static VERTICES: [Vertex<f32>; 4] = [
Vertex::new(Vec2(-0.5, -0.5), Vec3(1.0, 0.0, 0.0)),
Vertex::new(Vec2( 0.5, -0.5), Vec3(0.0, 1.0, 0.0)),
Vertex::new(Vec2( 0.5, 0.5), Vec3(0.0, 0.0, 1.0)),
Vertex::new(Vec2(-0.5, 0.5), Vec3(1.0, 1.0, 1.0)),
];
pub const INDICES: &[u16] = &[0, 1, 2, 2, 3, 0];
#[derive(Clone, Debug)]
pub struct Vec2<T>(T, T);
#[derive(Clone, Debug)]
pub struct Vec3<T>(T, T, T);
#[derive(Clone, Debug)]
#[allow(unused)]
pub struct Vec4<T>(T, T, T, T);
#[repr(C)]
#[derive(Clone, Debug)]
pub struct Vertex<T> {
pub position: Vec2<T>,
pub color: Vec3<T>,
}
impl<T> Vertex<T> {
const fn new(position: Vec2<T>, color: Vec3<T>) -> Self {
Self { position, color }
}
pub fn binding_description() -> vk::VertexInputBindingDescription {
vk::VertexInputBindingDescription::builder()
.binding(0)
.stride(size_of::<Vertex<f32>>() as u32)
.input_rate(vk::VertexInputRate::VERTEX)
.build()
}
pub fn attribute_descriptions()
-> [vk::VertexInputAttributeDescription; 2]
{
let position = vk::VertexInputAttributeDescription::builder()
.binding(0)
.location(0)
.format(vk::Format::R32G32_SFLOAT)
.offset(0)
.build();
let color = vk::VertexInputAttributeDescription::builder()
.binding(0)
.location(1)
.format(vk::Format::R32G32B32_SFLOAT)
.offset(size_of::<Vec2<f32>>() as u32)
.build();
[position, color]
}
}
|