[read-fonts] glyf: mask out cubic off-curve bit

We don't want to ship experimental functionality in Chrome. Resolved per #1221 to mask out the bit and re-enable later. Also ignores two tests for this.

read-fonts/src/tables/glyf.rs

@@ -263,7 +263,11 @@ impl<'a> SimpleGlyph<'a> {
             }
             y = y.wrapping_add(delta);
             point.y = C::from_i32(y);
-            *point_flags = PointFlags::from_bits(point_flags.0);
+            // Ignore the cubic off curve bit until the cubic glyf portion of
+            // the spec is finalized
+            // See <https://github.com/googlefonts/fontations/issues/1221>
+            //*point_flags = PointFlags::from_bits(point_flags.0);
+            *point_flags = PointFlags(point_flags.0 & PointFlags::ON_CURVE);
         }
         Ok(())
     }

skrifa/src/outline/mod.rs

@@ -1352,6 +1352,9 @@ mod tests {
     const CUBIC_GLYPH: GlyphId = GlyphId::new(2);
 
     #[test]
+    // Ignore test until cubic glyf spec finalizes
+    // See <https://github.com/googlefonts/fontations/issues/1221>
+    #[ignore]
     fn draw_cubic() {
         let font = FontRef::new(font_test_data::CUBIC_GLYF).unwrap();
         assert_glyph_path_start_with(

skrifa/src/outline/unscaled.rs

@@ -260,6 +260,9 @@ mod tests {
     }
 
     #[test]
+    // Ignore test until cubic glyf spec finalizes
+    // See <https://github.com/googlefonts/fontations/issues/1221>
+    #[ignore]
     fn read_cubic_glyf_outline() {
         let font = FontRef::new(font_test_data::CUBIC_GLYF).unwrap();
         let glyph = font.outline_glyphs().get(GlyphId::new(2)).unwrap();