From 8b422442b7079525dca8b2a1c6b167856d1d7e7e Mon Sep 17 00:00:00 2001
From: Daniel Imms <2193314+Tyriar@users.noreply.github.com>
Date: Sun, 21 May 2023 09:05:21 -0700
Subject: [PATCH] Close generator before deleting it

---
 addons/xterm-addon-canvas/src/BaseRenderLayer.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/addons/xterm-addon-canvas/src/BaseRenderLayer.ts b/addons/xterm-addon-canvas/src/BaseRenderLayer.ts
index 3cfdc969..1d1936e7 100644
--- a/addons/xterm-addon-canvas/src/BaseRenderLayer.ts
+++ b/addons/xterm-addon-canvas/src/BaseRenderLayer.ts
@@ -386,6 +386,7 @@ export abstract class BaseRenderLayer extends Disposable implements IRenderLayer
     // something is wrong with either the lifecycle of _bitmapGenerator or the page canvases are
     // swapped out unexpectedly
     if (this._bitmapGenerator[glyph.texturePage] && this._charAtlas.pages[glyph.texturePage].canvas !== this._bitmapGenerator[glyph.texturePage]!.canvas) {
+      this._bitmapGenerator[glyph.texturePage]?.bitmap?.close();
       delete this._bitmapGenerator[glyph.texturePage];
     }