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|
use std::fmt;
use crate::node::CompileError;
#[derive(Copy, Clone, Default, Debug, PartialEq, serde::Serialize, serde::Deserialize)]
pub enum FloatPrecision {
#[default]
Single,
Double,
}
#[derive(Copy, Clone, Debug, PartialEq, serde::Serialize, serde::Deserialize)]
pub enum ScalarType {
Float(FloatPrecision),
Int,
UInt,
Bool,
}
impl ScalarType {
const SCALARS: [Self; 5] = [
Self::Float(FloatPrecision::Single),
Self::Float(FloatPrecision::Double),
Self::Int,
Self::UInt,
Self::Bool,
];
pub fn default_value(&self) -> &'static str {
match self {
Self::Float(_) => "0.0",
Self::Int | Self::UInt => "0",
Self::Bool => "false",
}
}
pub fn pick(ui: &mut egui::Ui) -> Option<Self> {
for value in Self::SCALARS {
if ui.button(format!("{}", value)).clicked() {
return Some(value);
}
}
None
}
}
impl Default for ScalarType {
fn default() -> Self {
Self::Float(Default::default())
}
}
impl fmt::Display for ScalarType {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Self::Float(FloatPrecision::Single) => write!(f, "float"),
Self::Float(FloatPrecision::Double) => write!(f, "double"),
Self::Int => write!(f, "int"),
Self::UInt => write!(f, "uint"),
Self::Bool => write!(f, "bool"),
}
}
}
#[derive(Copy, Clone, Debug, PartialEq, serde::Serialize, serde::Deserialize)]
#[repr(u8)]
pub enum Dimension {
D2 = 2,
D3 = 3,
D4 = 4,
}
impl fmt::Display for Dimension {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{:?}", *self as u8)
}
}
impl Dimension {
pub const fn from_const(v: usize) -> Dimension {
match v {
2 => Self::D2,
3 => Self::D3,
4 => Self::D4,
_ => panic!("invalid dimension value"),
}
}
}
impl TryFrom<usize> for Dimension {
type Error = ();
fn try_from(value: usize) -> Result<Self, Self::Error> {
match value {
2 => Ok(Self::D2),
3 => Ok(Self::D3),
4 => Ok(Self::D4),
_ => Err(()),
}
}
}
/// a GLSL type
#[derive(Copy, Clone, Debug, PartialEq, serde::Serialize, serde::Deserialize)]
pub enum Type {
Scalar(ScalarType),
Vector(ScalarType, Dimension),
Matrix(FloatPrecision, Dimension, Dimension),
}
impl From<ScalarType> for Type {
fn from(val: ScalarType) -> Self {
Self::Scalar(val)
}
}
impl Type {
pub fn scalar(&self) -> ScalarType {
match self {
Type::Scalar(s) => *s,
Type::Vector(s, _) => *s,
Type::Matrix(p, _, _) => ScalarType::Float(*p),
}
}
pub fn num_components(&self) -> usize {
match self {
Type::Scalar(_) => 1,
Type::Vector(_, d) => *d as usize,
Type::Matrix(_, r, c) => (*r as usize) * (*c as usize),
}
}
pub fn default_value(&self) -> String {
match self {
Type::Scalar(_) => self.scalar().default_value().to_string(),
_ => format!("{self}({})", self.scalar().default_value()),
}
}
pub fn upcast_gentype(self, other: Self) -> Result<Self, CompileError> {
if self == other {
// same scalar or complex type
Ok(self)
} else if Self::Scalar(self.scalar()) == other {
// complex and scalar type
Ok(self)
} else if Self::Scalar(other.scalar()) == self {
// complex and scalar type
Ok(other)
} else {
Err(CompileError::InvalidArguments)
}
}
pub fn downcast_gentype(self, other: ScalarType) -> Result<ScalarType, CompileError> {
if self.scalar() == other {
Ok(other)
} else {
Err(CompileError::InvalidArguments)
}
}
pub fn pick(ui: &mut egui::Ui) -> Option<Self> {
let mut result: Option<Self> = ScalarType::pick(ui).map(Self::Scalar);
ui.separator();
for dim in [Dimension::D2, Dimension::D3, Dimension::D4] {
result = result.or(ui
.menu_button(format!("Vector {dim}"), |ui| {
ScalarType::pick(ui).map(|s| Self::Vector(s, dim))
})
.inner
.flatten());
}
result
}
}
impl fmt::Display for Type {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Type::Scalar(s) => write!(
f,
"{}",
match s {
ScalarType::Float(FloatPrecision::Single) => "float",
ScalarType::Float(FloatPrecision::Double) => "double",
ScalarType::Int => "int",
ScalarType::UInt => "uint",
ScalarType::Bool => "bool",
}
),
Type::Vector(s, d) => write!(
f,
"{}vec{d}",
match s {
ScalarType::Float(FloatPrecision::Single) => "",
ScalarType::Float(FloatPrecision::Double) => "d",
ScalarType::Int => "i",
ScalarType::UInt => "u",
ScalarType::Bool => "b",
}
),
Type::Matrix(p, r, c) => {
let pr = match p {
FloatPrecision::Single => "",
FloatPrecision::Double => "d",
};
if r == c {
write!(f, "{pr}mat{r}")
} else {
write!(f, "{pr}mat{r}{c}")
}
}
}
}
}
impl Default for Type {
fn default() -> Self {
Self::Scalar(Default::default())
}
}
/// a single concrete type signature for a function
#[derive(Clone, PartialEq, Debug)]
pub struct TypeSignature {
pub inputs: Box<[Type]>,
pub outputs: Box<[Type]>,
}
impl TypeSignature {
pub fn new<const NI: usize, const NO: usize>(inputs: [Type; NI], outputs: [Type; NO]) -> Self {
Self {
inputs: Box::new(inputs),
outputs: Box::new(outputs),
}
}
}
impl TypeSignature {
pub fn matches_inputs(&self, connected: &[Option<Type>]) -> bool {
let have_inputs = connected
.iter()
.enumerate()
.filter(|(_, t)| t.is_some())
.map(|(i, _)| i + 1)
.max()
.unwrap_or(0);
if have_inputs > self.inputs.len() {
false
} else {
connected
.iter()
.zip(self.inputs.iter())
.all(|(connected_input, expected)| {
if let Some(input) = connected_input {
*input == *expected
} else {
true
}
})
}
}
}
|
