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use {crate::layout::Plain, wgpu::PrimitiveTopology};
pub struct TopologyValue(PrimitiveTopology);
impl TopologyValue {
pub(crate) fn into_inner(self) -> PrimitiveTopology {
let Self(value) = self;
value
}
}
pub trait Topology {
type Face: Clone + Plain;
const VALUE: TopologyValue;
}
#[derive(Clone, Copy)]
pub struct PointList;
impl Topology for PointList {
type Face = u16;
const VALUE: TopologyValue = TopologyValue(PrimitiveTopology::PointList);
}
#[derive(Clone, Copy)]
pub struct LineList;
impl Topology for LineList {
type Face = [u16; 2];
const VALUE: TopologyValue = TopologyValue(PrimitiveTopology::LineList);
}
#[derive(Clone, Copy)]
pub struct LineStrip;
impl Topology for LineStrip {
type Face = u16;
const VALUE: TopologyValue = TopologyValue(PrimitiveTopology::LineStrip);
}
#[derive(Clone, Copy)]
pub struct TriangleList;
impl Topology for TriangleList {
type Face = [u16; 3];
const VALUE: TopologyValue = TopologyValue(PrimitiveTopology::TriangleList);
}
#[derive(Clone, Copy)]
pub struct TriangleStrip;
impl Topology for TriangleStrip {
type Face = u16;
const VALUE: TopologyValue = TopologyValue(PrimitiveTopology::TriangleStrip);
}