Generalize the GPU brush cache for reusable node data

Cargo.toml

@@ -105,6 +105,7 @@ wgpu-sync = { path = "libraries/wgpu-sync" }
 graphite-proc-macros = { path = "proc-macros" }
 graphite-editor = { path = "editor" }
 graphene-canvas-utils = { path = "node-graph/libraries/canvas-utils" }
+graphene-cache = { path = "node-graph/libraries/graphene-cache" }
 
 # Workspace dependencies
 rustc-hash = "2.0"

node-graph/graph-craft/src/document/value.rs

@@ -97,6 +97,7 @@ macro_rules! tagged_value {
 			#[serde(alias = "Gradient", alias = "GradientTable", alias = "GradientPositions", alias = "GradientStops")]
 			GradientRamp(GradientRamp),
 			Strokes(Vec<Stroke>),
+			#[serde(alias = "NodeCache", alias = "FootprintCache")]
 			BrushCache(BrushCache),
 			// =======================
 			// AUTO-GENERATED VARIANTS

node-graph/libraries/brush-types/Cargo.toml

@@ -13,6 +13,7 @@ serde = ["dep:serde", "core-types/serde"]
 [dependencies]
 # Local dependencies
 core-types = { workspace = true }
+graphene-cache = { workspace = true }
 graphene-hash = { workspace = true }
 
 # Workspace dependencies

node-graph/libraries/brush-types/src/lib.rs

@@ -1,13 +1,14 @@
-pub mod cache;
-pub use cache::BrushCache;
-
 use core_types::CacheHash;
 use core_types::bounds::{BoundingBox, RenderBoundingBox};
 use core_types::render_complexity::RenderComplexity;
+use core_types::transform::Footprint;
 use dyn_any::DynAny;
 use glam::{DAffine2, DVec2, Vec2};
+use graphene_cache::{Cache, GenerationalEviction};
 use std::f32::consts::{PI, TAU};
 
+pub type BrushCache = Cache<Footprint, GenerationalEviction<2, 3>>;
+
 #[derive(Clone, Debug, PartialEq, CacheHash)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 pub enum Channel<T> {

node-graph/libraries/graphene-cache/Cargo.toml

@@ -0,0 +1,22 @@
+[package]
+name = "graphene-cache"
+version = "0.1.0"
+edition = "2024"
+description = "The footprint-based cache for Graphene"
+authors = ["Graphite Authors <contact@graphite.art>"]
+license = "MIT OR Apache-2.0"
+
+[features]
+default = ["serde"]
+serde = ["dep:serde", "core-types/serde"]
+
+[dependencies]
+# Local dependencies
+core-types = { workspace = true }
+
+# Workspace dependencies
+dyn-any = { workspace = true }
+glam = { workspace = true }
+
+# Optional workspace dependencies
+serde = { workspace = true, optional = true }