#[macro_export]
macro_rules! vertex_attr_array {
($($loc:expr => $fmt:ident),* $(,)?) => {
$crate::vertex_attr_array!([] ; 0; $($loc => $fmt ,)*)
};
([$($t:expr,)*] ; $off:expr ;) => { [$($t,)*] };
([$($t:expr,)*] ; $off:expr ; $loc:expr => $item:ident, $($ll:expr => $ii:ident ,)*) => {
$crate::vertex_attr_array!(
[$($t,)*
$crate::VertexAttribute {
format: $crate::VertexFormat :: $item,
offset: $off,
shader_location: $loc,
},];
$off + $crate::VertexFormat :: $item.size();
$($ll => $ii ,)*
)
};
}
#[test]
fn test_vertex_attr_array() {
let attrs = vertex_attr_array![0 => Float32x2, 3 => Uint16x4];
assert_eq!(attrs.len(), 2);
assert_eq!(attrs[0].offset, 0);
assert_eq!(attrs[0].shader_location, 0);
assert_eq!(attrs[1].offset, std::mem::size_of::<(f32, f32)>() as u64);
assert_eq!(attrs[1].shader_location, 3);
}
#[macro_export]
#[cfg(feature = "spirv")]
macro_rules! include_spirv {
($($token:tt)*) => {
{
$crate::ShaderModuleDescriptor {
label: Some($($token)*),
source: $crate::util::make_spirv(include_bytes!($($token)*)),
}
}
};
}
#[macro_export]
macro_rules! include_spirv_raw {
($($token:tt)*) => {
{
$crate::ShaderModuleDescriptorSpirV {
label: Some($($token)*),
source: $crate::util::make_spirv_raw(include_bytes!($($token)*)),
}
}
};
}
#[macro_export]
macro_rules! include_wgsl {
($($token:tt)*) => {
{
$crate::ShaderModuleDescriptor {
label: Some($($token)*),
source: $crate::ShaderSource::Wgsl(include_str!($($token)*).into()),
}
}
};
}