From d613b20803f41eeb4f6ae27003d5bfa371502930 Mon Sep 17 00:00:00 2001 From: Micha White Date: Sun, 18 Sep 2022 15:30:56 -0400 Subject: Created a vertex buffer --- src/vertex.rs | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 src/vertex.rs (limited to 'src/vertex.rs') diff --git a/src/vertex.rs b/src/vertex.rs new file mode 100644 index 0000000..7735801 --- /dev/null +++ b/src/vertex.rs @@ -0,0 +1,34 @@ +use std::mem::size_of; + +use bytemuck::{Pod, Zeroable}; + +pub const SQUARE: [Vertex; 4] = [ + Vertex::new(-0.5, -0.5), + Vertex::new(0.5, -0.5), + Vertex::new(-0.5, 0.5), + Vertex::new(0.5, 0.5), +]; + +#[repr(C)] +#[derive(Copy, Clone, Debug, PartialEq, Pod, Zeroable)] +pub struct Vertex { + position: [f32; 2], +} + +impl Vertex { + const fn new(x: f32, y: f32) -> Self { + Self { position: [x, y] } + } +} + +impl Vertex { + const ATTRIBUTES: [wgpu::VertexAttribute; 1] = wgpu::vertex_attr_array![0 => Float32x2]; + + pub(crate) const fn desc<'a>() -> wgpu::VertexBufferLayout<'a> { + wgpu::VertexBufferLayout { + array_stride: size_of::() as wgpu::BufferAddress, + step_mode: wgpu::VertexStepMode::Vertex, + attributes: &Self::ATTRIBUTES, + } + } +} -- cgit v1.2.3