[type1] Fix matrix normalization.

* src/type1/t1load.c (parse_font_matrix): Handle sign of scaling factor.
14 years ago · b70d8a0ef6
parent f689bf7d9f
commit b70d8a0ef6
2 changed files with 9 additions and 2 deletions
--- a/9
+++ b/9
@ -1,6 +1,13 @@
+2010-11-18  Johnson Y. Yan  <yinsen_yan@foxitsoftware.com>
+
+	[type1] Fix matrix normalization.
+
+	* src/type1/t1load.c (parse_font_matrix): Handle sign of scaling
+	factor.
+
 2010-11-18  Werner Lemberg  <wl@gnu.org>

-	[type1]: Improve guard against malformed data.
+	[type1] Improve guard against malformed data.
 	Based on a patch submitted by Johnson Y. Yan
 	<yinsen_yan@foxitsoftware.com>

--- a/src/type1/t1load.c
+++ b/src/type1/t1load.c
@ -1117,7 +1117,7 @@
      temp[2] = FT_DivFix( temp[2], temp_scale );
      temp[4] = FT_DivFix( temp[4], temp_scale );
      temp[5] = FT_DivFix( temp[5], temp_scale );
-      temp[3] = 0x10000L;
+      temp[3] = temp[3] < 0 ? -0x10000L : 0x10000L;
    }

    matrix->xx = temp[0];