shithub: freetype+ttf2subf

Download patch

ref: 32dc43a5cc7b24ba2cdf78991fc49b1c6aeb720d
parent: 11d65e8a1f1f14e56148fd991965424d9bd1cdbc
author: Werner Lemberg <[email protected]>
date: Wed Aug 4 11:21:20 EDT 2010 

`make devel' fails if FT_CONFIG_OPTION_OLD_INTERNALS is set.

* devel/ftoption.h: Synchronize with
include/freetype/config/ftoption.h.

git/fs: mount .git/fs: mount/attach disallowed 
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2010-08-04  Werner Lemberg  <[email protected]>
+
+	`make devel' fails if FT_CONFIG_OPTION_OLD_INTERNALS is set.
+
+	* devel/ftoption.h: Synchronize with
+	include/freetype/config/ftoption.h.
+
 2010-08-04  Suzuki, Toshiya (鈴木俊哉) <[email protected]>
 
 	[cff] Improve stack overflow test.
--- a/devel/ftoption.h
+++ b/devel/ftoption.h
@@ -317,7 +317,7 @@
   /* supply font data incrementally as the document is parsed, such        */
   /* as the Ghostscript interpreter for the PostScript language.           */
   /*                                                                       */
-#define FT_CONFIG_OPTION_INCREMENTAL
+/* #define FT_CONFIG_OPTION_INCREMENTAL */
 
 
   /*************************************************************************/
@@ -689,7 +689,28 @@
    * is recommended to disable the macro since it reduces the library's code
    * size and activates a few memory-saving optimizations as well.
    */
-/* #define FT_CONFIG_OPTION_OLD_INTERNALS */
+#define FT_CONFIG_OPTION_OLD_INTERNALS
+
+
+  /*
+   *  To detect legacy cache-lookup call from a rogue client (<= 2.1.7),
+   *  we restrict the number of charmaps in a font.  The current API of
+   *  FTC_CMapCache_Lookup() takes cmap_index & charcode, but old API
+   *  takes charcode only.  To determine the passed value is for cmap_index
+   *  or charcode, the possible cmap_index is restricted not to exceed
+   *  the minimum possible charcode by a rogue client.  It is also very
+   *  unlikely that a rogue client is interested in Unicode values 0 to 15.
+   *
+   *  NOTE: The original threshold was 4 deduced from popular number of
+   *        cmap subtables in UCS-4 TrueType fonts, but now it is not
+   *        irregular for OpenType fonts to have more than 4 subtables,
+   *        because variation selector subtables are available for Apple
+   *        and Microsoft platforms.
+   */
+
+#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
+#define FT_MAX_CHARMAP_CACHEABLE 15
+#endif
 
 
   /*