* src/cff/cffparse.h (CFF2_DEFAULT_STACK): Set to 513 also.

Requested by Dave Arnold.
8 years ago · c8c6763988
parent da38be831d
commit c8c6763988
2 changed files with 15 additions and 1 deletions
--- a/6
+++ b/6
@ -1,3 +1,9 @@
+2017-03-30  Werner Lemberg  <wl@gnu.org>
+
+	* src/cff/cffparse.h (CFF2_DEFAULT_STACK): Set to 513 also.
+
+	Requested by Dave Arnold.
+
 2017-03-30  Werner Lemberg  <wl@gnu.org>

 	[truetype] Fix HVAR and VVAR handling (#50678).
--- a/src/cff/cffparse.h
+++ b/src/cff/cffparse.h
@ -31,8 +31,16 @@ FT_BEGIN_HEADER
  /* CFF uses constant parser stack size; */
  /* CFF2 can increase from default 193   */
 #define CFF_MAX_STACK_DEPTH  96
+
+  /*
+   *  There are plans to remove the `maxstack' operator in a forthcoming
+   *  revision of the CFF2 specification, increasing the (then static) stack
+   *  size to 513.  By making the default stack size equal to the maximum
+   *  stack size, the operator is essentially disabled, which has the
+   *  desired effect in FreeType.
+   */
 #define CFF2_MAX_STACK      513
-#define CFF2_DEFAULT_STACK  193
+#define CFF2_DEFAULT_STACK  513

 #define CFF_CODE_TOPDICT    0x1000
 #define CFF_CODE_PRIVATE    0x2000