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Diffstat (limited to 'Build/source/libs/freetype2/freetype-src/src/cff/cffparse.h')
-rw-r--r--Build/source/libs/freetype2/freetype-src/src/cff/cffparse.h12
1 files changed, 10 insertions, 2 deletions
diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cffparse.h b/Build/source/libs/freetype2/freetype-src/src/cff/cffparse.h
index 6088fec21c5..83d1bba45f2 100644
--- a/Build/source/libs/freetype2/freetype-src/src/cff/cffparse.h
+++ b/Build/source/libs/freetype2/freetype-src/src/cff/cffparse.h
@@ -4,7 +4,7 @@
/* */
/* CFF token stream parser (specification) */
/* */
-/* Copyright 1996-2016 by */
+/* Copyright 1996-2017 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -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