Cache add_font to avoid calling get_face too often

Kozea · Sep 30, 2022 · 0dc12b6 · 0dc12b6
1 parent dfccf1b
commit 0dc12b6
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/weasyprint/pdf/stream.py b/weasyprint/pdf/stream.py
@@ -2,6 +2,7 @@
 
 import io
 import struct
+from functools import lru_cache
 
 import pydyf
 from fontTools import subset
@@ -310,6 +311,7 @@ def set_blend_mode(self, mode):
             'BM': f'/{mode}',
         }))
 
+    @lru_cache
     def add_font(self, pango_font):
         pango_face = pango.pango_font_get_face(pango_font)
         if pango_face not in self._fonts: