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Quantization node (#887)

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Add basic quantization node
This commit is contained in:
Dennis Kobert
2022-12-31 18:30:35 +01:00
committed by Keavon Chambers
parent 79ad3e7908
commit 74bfd630a9
10 changed files with 528 additions and 25 deletions
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28
node-graph/gcore/src/raster.rs
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@@ -3,7 +3,7 @@ use crate::Node;
pub mod color;
pub use self::color::Color;
#[derive(Debug, Clone, Copy)]
#[derive(Debug, Clone, Copy, Default)]
pub struct GrayscaleColorNode;
impl Node<Color> for GrayscaleColorNode {
@@ -53,6 +53,32 @@ impl<N: Node<(), Output = f32> + Copy> BrightenColorNode<N> {
}
}
#[derive(Debug, Clone, Copy)]
pub struct GammaColorNode<N: Node<(), Output = f32>>(N);
impl<N: Node<(), Output = f32>> Node<Color> for GammaColorNode<N> {
type Output = Color;
fn eval(self, color: Color) -> Color {
let gamma = self.0.eval(());
let per_channel = |col: f32| col.powf(gamma);
Color::from_rgbaf32_unchecked(per_channel(color.r()), per_channel(color.g()), per_channel(color.b()), color.a())
}
}
impl<N: Node<(), Output = f32> + Copy> Node<Color> for &GammaColorNode<N> {
type Output = Color;
fn eval(self, color: Color) -> Color {
let gamma = self.0.eval(());
let per_channel = |col: f32| col.powf(gamma);
Color::from_rgbaf32_unchecked(per_channel(color.r()), per_channel(color.g()), per_channel(color.b()), color.a())
}
}
impl<N: Node<(), Output = f32> + Copy> GammaColorNode<N> {
pub fn new(node: N) -> Self {
Self(node)
}
}
#[derive(Debug, Clone, Copy)]
#[cfg(not(target_arch = "spirv"))]
pub struct HueShiftColorNode<N: Node<(), Output = f32>>(N);