Fix loading non-existent data from glyf table

Signed-off-by: Vsevolod Volkov <[email protected]>
foliojs · Apr 7, 2023 · 7c7e6ac · 7c7e6ac
1 parent c4a8820
commit 7c7e6ac
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/src/glyph/TTFGlyph.js b/src/glyph/TTFGlyph.js
@@ -74,8 +74,16 @@ export default class TTFGlyph extends Glyph {
       return this.path.cbox;
     }
 
+    let glyfPos = this._font.loca.offsets[this.id];
+    let nextPos = this._font.loca.offsets[this.id + 1];
+
+    // No data for this glyph (space?)
+    if (glyfPos === nextPos) {
+      return super._getCBox();
+    }
+
     let stream = this._font._getTableStream('glyf');
-    stream.pos += this._font.loca.offsets[this.id];
+    stream.pos += glyfPos;
     let glyph = GlyfHeader.decode(stream);
 
     let cbox = new BBox(glyph.xMin, glyph.yMin, glyph.xMax, glyph.yMax);