Use `rustc-hash` for most of our `HashMap` and `HashSet` instances

4 files changed, 11 insertions, 10 deletions

diff --git a/wgpu/Cargo.toml b/wgpu/Cargo.toml
index f6162e0f..0b713784 100644
--- a/wgpu/Cargo.toml
+++ b/wgpu/Cargo.toml
@@ -32,6 +32,7 @@ glyphon.workspace = true
 guillotiere.workspace = true
 log.workspace = true
 once_cell.workspace = true
+rustc-hash.workspace = true
 thiserror.workspace = true
 wgpu.workspace = true
 
diff --git a/wgpu/src/image/raster.rs b/wgpu/src/image/raster.rs
index a6cba76a..441b294f 100644
--- a/wgpu/src/image/raster.rs
+++ b/wgpu/src/image/raster.rs
@@ -4,7 +4,7 @@ use crate::graphics;
 use crate::graphics::image::image_rs;
 use crate::image::atlas::{self, Atlas};
 
-use std::collections::{HashMap, HashSet};
+use rustc_hash::{FxHashMap, FxHashSet};
 
 /// Entry in cache corresponding to an image handle
 #[derive(Debug)]
@@ -38,8 +38,8 @@ impl Memory {
 /// Caches image raster data
 #[derive(Debug, Default)]
 pub struct Cache {
-    map: HashMap<u64, Memory>,
-    hits: HashSet<u64>,
+    map: FxHashMap<u64, Memory>,
+    hits: FxHashSet<u64>,
 }
 
 impl Cache {
diff --git a/wgpu/src/image/vector.rs b/wgpu/src/image/vector.rs
index d9be50d7..d681b2e6 100644
--- a/wgpu/src/image/vector.rs
+++ b/wgpu/src/image/vector.rs
@@ -5,7 +5,7 @@ use crate::image::atlas::{self, Atlas};
 
 use resvg::tiny_skia;
 use resvg::usvg::{self, TreeTextToPath};
-use std::collections::{HashMap, HashSet};
+use rustc_hash::{FxHashMap, FxHashSet};
 use std::fs;
 
 /// Entry in cache corresponding to an svg handle
@@ -33,10 +33,10 @@ impl Svg {
 /// Caches svg vector and raster data
 #[derive(Debug, Default)]
 pub struct Cache {
-    svgs: HashMap<u64, Svg>,
-    rasterized: HashMap<(u64, u32, u32, ColorFilter), atlas::Entry>,
-    svg_hits: HashSet<u64>,
-    rasterized_hits: HashSet<(u64, u32, u32, ColorFilter)>,
+    svgs: FxHashMap<u64, Svg>,
+    rasterized: FxHashMap<(u64, u32, u32, ColorFilter), atlas::Entry>,
+    svg_hits: FxHashSet<u64>,
+    rasterized_hits: FxHashSet<(u64, u32, u32, ColorFilter)>,
 }
 
 type ColorFilter = Option<[u8; 4]>;
diff --git a/wgpu/src/primitive/pipeline.rs b/wgpu/src/primitive/pipeline.rs
index 814440ba..59c54db9 100644
--- a/wgpu/src/primitive/pipeline.rs
+++ b/wgpu/src/primitive/pipeline.rs
@@ -1,8 +1,8 @@
 //! Draw primitives using custom pipelines.
 use crate::core::{self, Rectangle, Size};
 
+use rustc_hash::FxHashMap;
 use std::any::{Any, TypeId};
-use std::collections::HashMap;
 use std::fmt::Debug;
 use std::sync::Arc;
 
@@ -82,7 +82,7 @@ impl Renderer for crate::Renderer {
 /// Stores custom, user-provided pipelines.
 #[derive(Default, Debug)]
 pub struct Storage {
-    pipelines: HashMap<TypeId, Box<dyn Any + Send>>,
+    pipelines: FxHashMap<TypeId, Box<dyn Any + Send>>,
 }
 
 impl Storage {