1 files changed, 36 insertions, 0 deletions
diff --git a/rust/crates/compositor/src/texture_pool.rs b/rust/crates/compositor/src/texture_pool.rs
new file mode 100644
index 00000000..f2c59ee7
--- /dev/null
+++ b/rust/crates/compositor/src/texture_pool.rs
@@ -0,0 +1,36 @@
+use std::collections::HashMap;
+
+use gpu::{GpuContext, wgpu};
+
+type TextureKey = (u32, u32);
+
+#[derive(Default)]
+pub struct TexturePool {
+    available: HashMap<TextureKey, Vec<wgpu::Texture>>,
+    in_use: Vec<(TextureKey, wgpu::Texture)>,
+}
+
+impl TexturePool {
+    pub fn recycle_frame(&mut self) {
+        for (key, texture) in self.in_use.drain(..) {
+            self.available.entry(key).or_default().push(texture);
+        }
+    }
+
+    pub fn acquire(
+        &mut self,
+        context: &GpuContext,
+        width: u32,
+        height: u32,
+        label: &'static str,
+    ) -> wgpu::Texture {
+        let key = (width, height);
+        let texture = self
+            .available
+            .get_mut(&key)
+            .and_then(Vec::pop)
+            .unwrap_or_else(|| context.create_render_texture(width, height, label));
+        self.in_use.push((key, texture.clone()));
+        texture
+    }
+}