From e6d5e4c3106180cb22253c2c278b40f7c4c98f2f Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Wed, 6 Jan 2016 12:29:50 +0000
Subject: [PATCH] [uniscribe] Fix negative advance

This happens with at least one test font I have.
---
 src/hb-uniscribe.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hb-uniscribe.cc b/src/hb-uniscribe.cc
index 86bb84f93..7fda6788b 100644
--- a/src/hb-uniscribe.cc
+++ b/src/hb-uniscribe.cc
@@ -1019,7 +1019,7 @@ retry:
     hb_glyph_position_t *pos = &buffer->pos[i];
 
     /* TODO vertical */
-    pos->x_advance = x_mult * info->mask;
+    pos->x_advance = x_mult * (int32_t) info->mask;
     pos->x_offset = x_mult * (backward ? -info->var1.i32 : info->var1.i32);
     pos->y_offset = y_mult * info->var2.i32;
   }