[arabic] Improve stretch length calculation

Err on the side of being too short, than too wide. Reduces chance of overlaps with neighboring glyphs.
9 years ago · 04ff23e73d
parent 59821ab8b4
commit 04ff23e73d
1 changed files with 1 additions and 1 deletions
--- a/src/hb-ot-shape-complex-arabic.cc
+++ b/src/hb-ot-shape-complex-arabic.cc
@ -541,7 +541,7 @@ apply_stch (const hb_ot_shape_plan_t *plan,

      hb_position_t w_remaining = w_total - w_fixed - overlap;
      if (sign * w_remaining > sign * w_repeating && sign * w_repeating > 0)
-	n_copies = (sign * w_remaining + sign * w_repeating / 2) / (sign * w_repeating) - 1;
+	n_copies = (sign * w_remaining + sign * w_repeating / 4) / (sign * w_repeating) - 1;

      if (step == MEASURE)
      {