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d5e31c23bb
* Rename spread method to gradient spread so it matches the other gradient attribute names * Keep the legacy gradient struct's spread method field name matching its on-disk key
37 lines
1.2 KiB
Rust
37 lines
1.2 KiB
Rust
//! Not immediately shader compatible due to needing [`Gradient`] as a param, which needs [`Vec`]
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use crate::adjust::Adjust;
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use core_types::{Color, Ctx};
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use raster_types::{CPU, Raster};
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use vector_types::Gradient;
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// Aims for interoperable compatibility with:
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// https://www.adobe.com/devnet-apps/photoshop/fileformatashtml/#:~:text=%27grdm%27%20%3D%20Gradient%20Map
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// https://www.adobe.com/devnet-apps/photoshop/fileformatashtml/#:~:text=Gradient%20settings%20(Photoshop%206.0)
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#[node_macro::node(category("Raster: Adjustment"))]
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fn gradient_map<T: Adjust<Color> + Clone + Send + Sync + core_types::CacheHash + 'static>(
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_: impl Ctx,
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#[implementations(
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Raster<CPU>,
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Color,
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Gradient,
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)]
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mut image: T,
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#[default(Color::BLACK, Color::WHITE)] gradient: IList<Gradient>,
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reverse: bool,
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) -> T {
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if gradient.is_empty() {
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return image;
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}
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let gradient_spread = gradient.lane(0).attr::<vector_types::markers::GradientSpread>();
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let gradient = gradient.element_ref(0);
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image.adjust(|color| {
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let intensity = color.luminance_rec_709();
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let intensity = if reverse { 1. - intensity } else { intensity };
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gradient.evaluate(intensity as f64, gradient_spread)
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});
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image
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}
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