Merge pull request #732 from googlefonts/prune-marks-nop-deltas

[marks] Prune nop deltas from marks
googlefonts · Mar 13, 2024 · 8981d4c · 8981d4c
2 parents 4431a72 + f9741b4
commit 8981d4c
Showing 1 changed file with 10 additions and 3 deletions.
diff --git a/fontbe/src/features/marks.rs b/fontbe/src/features/marks.rs
@@ -290,7 +290,14 @@ fn resolve_anchor(
         static_metadata,
         y_values.iter().map(|item| (&item.0, &item.1)),
     )?;
-    Ok(fea_rs::compile::Anchor::new(x_default, y_default)
-        .with_x_device(x_deltas)
-        .with_y_device(y_deltas))
+
+    let mut anchor = fea_rs::compile::Anchor::new(x_default, y_default);
+    if x_deltas.iter().any(|v| v.1 != 0) {
+        anchor = anchor.with_x_device(x_deltas);
+    }
+    if y_deltas.iter().any(|v| v.1 != 0) {
+        anchor = anchor.with_y_device(y_deltas);
+    }
+
+    Ok(anchor)
 }