blob: e54f638cbca3fd49d871622a21f870171b17658e (
plain)
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
|
pub struct VertexArray
{
array: gl::types::GLuint,
}
impl VertexArray
{
pub fn new() -> Self
{
let mut array = 0;
unsafe {
gl::GenVertexArrays(1, &mut array);
}
Self { array }
}
pub fn draw(&self, primitive_kind: PrimitiveKind, start_index: u32, index_cnt: u32)
{
self.bind();
unsafe {
#[allow(clippy::cast_possible_wrap)]
gl::DrawArrays(
primitive_kind.into_gl(),
start_index as gl::types::GLint,
index_cnt as gl::types::GLsizei,
);
}
}
pub fn bind(&self)
{
unsafe { gl::BindVertexArray(self.array) }
}
}
impl Drop for VertexArray
{
fn drop(&mut self)
{
unsafe {
gl::DeleteVertexArrays(1, &self.array);
}
}
}
pub enum PrimitiveKind
{
Triangles,
}
impl PrimitiveKind
{
fn into_gl(self) -> gl::types::GLenum
{
match self {
Self::Triangles => gl::TRIANGLES,
}
}
}
|
