pub use valora_derive::UniformSet;
use glium::{
texture::{texture2d::Texture2d, texture2d_multisample::Texture2dMultisample},
uniforms::{SamplerBehavior, UniformValue},
};
pub trait OwnedUniforms {
fn visit_owned_values(&self, f: &mut dyn FnMut(&str, &dyn IntoUniformValue));
}
pub trait IntoUniformValue {
fn into_uniform_value<'a>(&'a self) -> UniformValue<'a>;
}
macro_rules! primitive_uniform_value {
($primitive:ty, $wrapper:expr) => {
impl IntoUniformValue for $primitive {
fn into_uniform_value<'a>(&'a self) -> UniformValue<'a> {
$wrapper(*self)
}
}
};
}
macro_rules! referenced_uniform_value {
($base:ty, $wrapper:expr) => {
impl IntoUniformValue for $base {
fn into_uniform_value<'a>(&'a self) -> UniformValue<'a> {
$wrapper(self)
}
}
};
}
primitive_uniform_value!(f32, |v| UniformValue::Float(v));
primitive_uniform_value!((f32, f32), |v: (f32, f32)| UniformValue::Vec2([v.0, v.1]));
primitive_uniform_value!((f32, f32, f32), |v: (f32, f32, f32)| UniformValue::Vec3([
v.0, v.1, v.2
]));
primitive_uniform_value!((f32, f32, f32, f32), |v: (f32, f32, f32, f32)| {
UniformValue::Vec4([v.0, v.1, v.2, v.3])
});
primitive_uniform_value!([f32; 2], |v| UniformValue::Vec2(v));
primitive_uniform_value!([f32; 3], |v| UniformValue::Vec3(v));
primitive_uniform_value!([f32; 4], |v| UniformValue::Vec4(v));
primitive_uniform_value!([[f32; 2]; 2], |v| UniformValue::Mat2(v));
primitive_uniform_value!([[f32; 3]; 3], |v| UniformValue::Mat3(v));
primitive_uniform_value!([[f32; 4]; 4], |v| UniformValue::Mat4(v));
primitive_uniform_value!(f64, |v| UniformValue::Double(v));
primitive_uniform_value!((f64, f64), |v: (f64, f64)| UniformValue::DoubleVec2([
v.0, v.1
]));
primitive_uniform_value!((f64, f64, f64), |v: (f64, f64, f64)| {
UniformValue::DoubleVec3([v.0, v.1, v.2])
});
primitive_uniform_value!((f64, f64, f64, f64), |v: (f64, f64, f64, f64)| {
UniformValue::DoubleVec4([v.0, v.1, v.2, v.3])
});
primitive_uniform_value!([f64; 2], |v| UniformValue::DoubleVec2(v));
primitive_uniform_value!([f64; 3], |v| UniformValue::DoubleVec3(v));
primitive_uniform_value!([f64; 4], |v| UniformValue::DoubleVec4(v));
primitive_uniform_value!([[f64; 2]; 2], |v| UniformValue::DoubleMat2(v));
primitive_uniform_value!([[f64; 3]; 3], |v| UniformValue::DoubleMat3(v));
primitive_uniform_value!([[f64; 4]; 4], |v| UniformValue::DoubleMat4(v));
primitive_uniform_value!(i32, |v| UniformValue::SignedInt(v));
primitive_uniform_value!((i32, i32), |v: (i32, i32)| UniformValue::IntVec2([
v.0, v.1
]));
primitive_uniform_value!((i32, i32, i32), |v: (i32, i32, i32)| UniformValue::IntVec3(
[v.0, v.1, v.2]
));
primitive_uniform_value!((i32, i32, i32, i32), |v: (i32, i32, i32, i32)| {
UniformValue::IntVec4([v.0, v.1, v.2, v.3])
});
primitive_uniform_value!([i32; 2], |v| UniformValue::IntVec2(v));
primitive_uniform_value!([i32; 3], |v| UniformValue::IntVec3(v));
primitive_uniform_value!([i32; 4], |v| UniformValue::IntVec4(v));
primitive_uniform_value!(i64, |v| UniformValue::Int64(v));
primitive_uniform_value!((i64, i64), |v: (i64, i64)| UniformValue::Int64Vec2([
v.0, v.1
]));
primitive_uniform_value!((i64, i64, i64), |v: (i64, i64, i64)| {
UniformValue::Int64Vec3([v.0, v.1, v.2])
});
primitive_uniform_value!((i64, i64, i64, i64), |v: (i64, i64, i64, i64)| {
UniformValue::Int64Vec4([v.0, v.1, v.2, v.3])
});
primitive_uniform_value!([i64; 2], |v| UniformValue::Int64Vec2(v));
primitive_uniform_value!([i64; 3], |v| UniformValue::Int64Vec3(v));
primitive_uniform_value!([i64; 4], |v| UniformValue::Int64Vec4(v));
primitive_uniform_value!(u64, |v| UniformValue::UnsignedInt64(v));
primitive_uniform_value!((u64, u64), |v: (u64, u64)| UniformValue::UnsignedInt64Vec2(
[v.0, v.1]
));
primitive_uniform_value!((u64, u64, u64), |v: (u64, u64, u64)| {
UniformValue::UnsignedInt64Vec3([v.0, v.1, v.2])
});
primitive_uniform_value!((u64, u64, u64, u64), |v: (u64, u64, u64, u64)| {
UniformValue::UnsignedInt64Vec4([v.0, v.1, v.2, v.3])
});
primitive_uniform_value!([u64; 2], |v| UniformValue::UnsignedInt64Vec2(v));
primitive_uniform_value!([u64; 3], |v| UniformValue::UnsignedInt64Vec3(v));
primitive_uniform_value!([u64; 4], |v| UniformValue::UnsignedInt64Vec4(v));
primitive_uniform_value!(u32, |v| UniformValue::UnsignedInt(v));
primitive_uniform_value!((u32, u32), |v: (u32, u32)| UniformValue::UnsignedIntVec2([
v.0, v.1
]));
primitive_uniform_value!((u32, u32, u32), |v: (u32, u32, u32)| {
UniformValue::UnsignedIntVec3([v.0, v.1, v.2])
});
primitive_uniform_value!((u32, u32, u32, u32), |v: (u32, u32, u32, u32)| {
UniformValue::UnsignedIntVec4([v.0, v.1, v.2, v.3])
});
primitive_uniform_value!([u32; 2], |v| UniformValue::UnsignedIntVec2(v));
primitive_uniform_value!([u32; 3], |v| UniformValue::UnsignedIntVec3(v));
primitive_uniform_value!([u32; 4], |v| UniformValue::UnsignedIntVec4(v));
primitive_uniform_value!(bool, |v| UniformValue::Bool(v));
primitive_uniform_value!((bool, bool), |v: (bool, bool)| UniformValue::BoolVec2([
v.0, v.1
]));
primitive_uniform_value!((bool, bool, bool), |v: (bool, bool, bool)| {
UniformValue::BoolVec3([v.0, v.1, v.2])
});
primitive_uniform_value!((bool, bool, bool, bool), |v: (bool, bool, bool, bool)| {
UniformValue::BoolVec4([v.0, v.1, v.2, v.3])
});
primitive_uniform_value!([bool; 2], |v| UniformValue::BoolVec2(v));
primitive_uniform_value!([bool; 3], |v| UniformValue::BoolVec3(v));
primitive_uniform_value!([bool; 4], |v| UniformValue::BoolVec4(v));
referenced_uniform_value!(Texture2d, |t| UniformValue::Texture2d(t, None));
referenced_uniform_value!(
Texture2dMultisample,
|t| UniformValue::Texture2dMultisample(t, Some(SamplerBehavior::default()))
);
#[cfg(test)]
mod test {
use super::*;
use valora_derive::UniformSet;
#[derive(UniformSet)]
pub struct MyUniforms {
camera: [f32; 3],
flipped: bool,
}
#[test]
fn test() {
let uniforms = MyUniforms {
camera: [0., 0., 0.],
flipped: true,
};
let mut i = 0;
OwnedUniforms::visit_owned_values(&uniforms, &mut |name: &str, value| {
let value = value.into_uniform_value();
match i {
0 => match (name, value) {
("camera", UniformValue::Vec3(pos)) if pos == [0., 0., 0.] => {}
_ => panic!("Wrong camera values"),
},
1 => match (name, value) {
("flipped", UniformValue::Bool(true)) => {}
_ => panic!("Wrong flipped values"),
},
_ => panic!("unexpected uniform: {:?}", name),
}
i += 1;
});
}
}