Update bundled FreeType to 2.5.5

Removed everything, imported with help of import_from_tarball.sh script,
and then added a pre-generated builds/unix/ftconfig.h

Task-number: QTBUG-44648
Change-Id: Iea948e41f7761f1580382b3763d04c7a61383382
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

39 files changed, 6814 insertions, 1785 deletions

diff --git a/src/3rdparty/freetype/src/autofit/afangles.c b/src/3rdparty/freetype/src/autofit/afangles.c
index e2360d157d..f8b095bef3 100644
--- a/src/3rdparty/freetype/src/autofit/afangles.c
+++ b/src/3rdparty/freetype/src/autofit/afangles.c
@@ -5,7 +5,7 @@
 /*    Routines used to compute vector angles with limited accuracy         */
 /*    and very high speed.  It also contains sorting routines (body).      */
 /*                                                                         */
-/*  Copyright 2003, 2004, 2005, 2006 by                                    */
+/*  Copyright 2003-2006, 2011-2012 by                                      */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -20,66 +20,6 @@
 #include "aftypes.h"
 
 
-#if 0
-
-  FT_LOCAL_DEF( FT_Int )
-  af_corner_is_flat( FT_Pos  x_in,
-                     FT_Pos  y_in,
-                     FT_Pos  x_out,
-                     FT_Pos  y_out )
-  {
-    FT_Pos  ax = x_in;
-    FT_Pos  ay = y_in;
-
-    FT_Pos  d_in, d_out, d_corner;
-
-
-    if ( ax < 0 )
-      ax = -ax;
-    if ( ay < 0 )
-      ay = -ay;
-    d_in = ax + ay;
-
-    ax = x_out;
-    if ( ax < 0 )
-      ax = -ax;
-    ay = y_out;
-    if ( ay < 0 )
-      ay = -ay;
-    d_out = ax + ay;
-
-    ax = x_out + x_in;
-    if ( ax < 0 )
-      ax = -ax;
-    ay = y_out + y_in;
-    if ( ay < 0 )
-      ay = -ay;
-    d_corner = ax + ay;
-
-    return ( d_in + d_out - d_corner ) < ( d_corner >> 4 );
-  }
-
-
-  FT_LOCAL_DEF( FT_Int )
-  af_corner_orientation( FT_Pos  x_in,
-                         FT_Pos  y_in,
-                         FT_Pos  x_out,
-                         FT_Pos  y_out )
-  {
-    FT_Pos  delta;
-
-
-    delta = x_in * y_out - y_in * x_out;
-
-    if ( delta == 0 )
-      return 0;
-    else
-      return 1 - 2 * ( delta < 0 );
-  }
-
-#endif
-
-
   /*
    *  We are not using `af_angle_atan' anymore, but we keep the source
    *  code below just in case...
@@ -255,7 +195,7 @@
     {
       for ( j = i; j > 0; j-- )
       {
-        if ( table[j] > table[j - 1] )
+        if ( table[j] >= table[j - 1] )
           break;
 
         swap         = table[j];
@@ -267,18 +207,26 @@
 
 
   FT_LOCAL_DEF( void )
-  af_sort_widths( FT_UInt   count,
-                  AF_Width  table )
+  af_sort_and_quantize_widths( FT_UInt*  count,
+                               AF_Width  table,
+                               FT_Pos    threshold )
   {
     FT_UInt      i, j;
+    FT_UInt      cur_idx;
+    FT_Pos       cur_val;
+    FT_Pos       sum;
     AF_WidthRec  swap;
 
 
-    for ( i = 1; i < count; i++ )
+    if ( *count == 1 )
+      return;
+
+    /* sort */
+    for ( i = 1; i < *count; i++ )
     {
       for ( j = i; j > 0; j-- )
       {
-        if ( table[j].org > table[j - 1].org )
+        if ( table[j].org >= table[j - 1].org )
           break;
 
         swap         = table[j];
@@ -286,6 +234,51 @@
         table[j - 1] = swap;
       }
     }
+
+    cur_idx = 0;
+    cur_val = table[cur_idx].org;
+
+    /* compute and use mean values for clusters not larger than  */
+    /* `threshold'; this is very primitive and might not yield   */
+    /* the best result, but normally, using reference character  */
+    /* `o', `*count' is 2, so the code below is fully sufficient */
+    for ( i = 1; i < *count; i++ )
+    {
+      if ( table[i].org - cur_val > threshold ||
+           i == *count - 1                    )
+      {
+        sum = 0;
+
+        /* fix loop for end of array */
+        if ( table[i].org - cur_val <= threshold &&
+             i == *count - 1                     )
+          i++;
+
+        for ( j = cur_idx; j < i; j++ )
+        {
+          sum         += table[j].org;
+          table[j].org = 0;
+        }
+        table[cur_idx].org = sum / j;
+
+        if ( i < *count - 1 )
+        {
+          cur_idx = i + 1;
+          cur_val = table[cur_idx].org;
+        }
+      }
+    }
+
+    cur_idx = 1;
+
+    /* compress array to remove zero values */
+    for ( i = 1; i < *count; i++ )
+    {
+      if ( table[i].org )
+        table[cur_idx++] = table[i];
+    }
+
+    *count = cur_idx;
   }
 
 
diff --git a/src/3rdparty/freetype/src/autofit/afblue.c b/src/3rdparty/freetype/src/autofit/afblue.c
new file mode 100644
index 0000000000..811226eac3
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afblue.c
@@ -0,0 +1,177 @@
+/* This file has been generated by the Perl script `afblue.pl', */
+/* using data from file `afblue.dat'.                           */
+
+/***************************************************************************/
+/*                                                                         */
+/*  afblue.c                                                               */
+/*                                                                         */
+/*    Auto-fitter data for blue strings (body).                            */
+/*                                                                         */
+/*  Copyright 2013 by                                                      */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#include "aftypes.h"
+
+
+  FT_LOCAL_ARRAY_DEF( char )
+  af_blue_strings[] =
+  {
+    /* */
+    '\xD0', '\x91', '\xD0', '\x92', '\xD0', '\x95', '\xD0', '\x9F', '\xD0', '\x97', '\xD0', '\x9E', '\xD0', '\xA1', '\xD0', '\xAD',  /* БВЕПЗОСЭ */
+    '\0',
+    '\xD0', '\x91', '\xD0', '\x92', '\xD0', '\x95', '\xD0', '\xA8', '\xD0', '\x97', '\xD0', '\x9E', '\xD0', '\xA1', '\xD0', '\xAD',  /* БВЕШЗОСЭ */
+    '\0',
+    '\xD1', '\x85', '\xD0', '\xBF', '\xD0', '\xBD', '\xD1', '\x88', '\xD0', '\xB5', '\xD0', '\xB7', '\xD0', '\xBE', '\xD1', '\x81',  /* хпншезос */
+    '\0',
+    '\xD1', '\x80', '\xD1', '\x83', '\xD1', '\x84',  /* руф */
+    '\0',
+    '\xE0', '\xA4', '\x95', '\xE0', '\xA4', '\xAE', '\xE0', '\xA4', '\x85', '\xE0', '\xA4', '\x86', '\xE0', '\xA4', '\xA5', '\xE0', '\xA4', '\xA7', '\xE0', '\xA4', '\xAD', '\xE0', '\xA4', '\xB6',  /* क म अ आ थ ध भ श */
+    '\0',
+    '\xE0', '\xA4', '\x88', '\xE0', '\xA4', '\x90', '\xE0', '\xA4', '\x93', '\xE0', '\xA4', '\x94', '\xE0', '\xA4', '\xBF', '\xE0', '\xA5', '\x80', '\xE0', '\xA5', '\x8B', '\xE0', '\xA5', '\x8C',  /* ई ऐ ओ औ ि ी ो ौ */
+    '\0',
+    '\xE0', '\xA4', '\x95', '\xE0', '\xA4', '\xAE', '\xE0', '\xA4', '\x85', '\xE0', '\xA4', '\x86', '\xE0', '\xA4', '\xA5', '\xE0', '\xA4', '\xA7', '\xE0', '\xA4', '\xAD', '\xE0', '\xA4', '\xB6',  /* क म अ आ थ ध भ श */
+    '\0',
+    '\xE0', '\xA5', '\x81', '\xE0', '\xA5', '\x83',  /* ु ृ */
+    '\0',
+    '\xCE', '\x93', '\xCE', '\x92', '\xCE', '\x95', '\xCE', '\x96', '\xCE', '\x98', '\xCE', '\x9F', '\xCE', '\xA9',  /* ΓΒΕΖΘΟΩ */
+    '\0',
+    '\xCE', '\x92', '\xCE', '\x94', '\xCE', '\x96', '\xCE', '\x9E', '\xCE', '\x98', '\xCE', '\x9F',  /* ΒΔΖΞΘΟ */
+    '\0',
+    '\xCE', '\xB2', '\xCE', '\xB8', '\xCE', '\xB4', '\xCE', '\xB6', '\xCE', '\xBB', '\xCE', '\xBE',  /* βθδζλξ */
+    '\0',
+    '\xCE', '\xB1', '\xCE', '\xB5', '\xCE', '\xB9', '\xCE', '\xBF', '\xCF', '\x80', '\xCF', '\x83', '\xCF', '\x84', '\xCF', '\x89',  /* αειοπστω */
+    '\0',
+    '\xCE', '\xB2', '\xCE', '\xB3', '\xCE', '\xB7', '\xCE', '\xBC', '\xCF', '\x81', '\xCF', '\x86', '\xCF', '\x87', '\xCF', '\x88',  /* βγημρφχψ */
+    '\0',
+    '\xD7', '\x91', '\xD7', '\x93', '\xD7', '\x94', '\xD7', '\x97', '\xD7', '\x9A', '\xD7', '\x9B', '\xD7', '\x9D', '\xD7', '\xA1',  /* בדהחךכםס */
+    '\0',
+    '\xD7', '\x91', '\xD7', '\x98', '\xD7', '\x9B', '\xD7', '\x9D', '\xD7', '\xA1', '\xD7', '\xA6',  /* בטכםסצ */
+    '\0',
+    '\xD7', '\xA7', '\xD7', '\x9A', '\xD7', '\x9F', '\xD7', '\xA3', '\xD7', '\xA5',  /* קךןףץ */
+    '\0',
+    'T', 'H', 'E', 'Z', 'O', 'C', 'Q', 'S',  /* THEZOCQS */
+    '\0',
+    'H', 'E', 'Z', 'L', 'O', 'C', 'U', 'S',  /* HEZLOCUS */
+    '\0',
+    'f', 'i', 'j', 'k', 'd', 'b', 'h',  /* fijkdbh */
+    '\0',
+    'x', 'z', 'r', 'o', 'e', 's', 'c',  /* xzroesc */
+    '\0',
+    'p', 'q', 'g', 'j', 'y',  /* pqgjy */
+    '\0',
+    '\xE0', '\xB0', '\x87', '\xE0', '\xB0', '\x8C', '\xE0', '\xB0', '\x99', '\xE0', '\xB0', '\x9E', '\xE0', '\xB0', '\xA3', '\xE0', '\xB0', '\xB1', '\xE0', '\xB1', '\xAF',  /* ఇ ఌ ఙ ఞ ణ ఱ ౯ */
+    '\0',
+    '\xE0', '\xB0', '\x85', '\xE0', '\xB0', '\x95', '\xE0', '\xB0', '\x9A', '\xE0', '\xB0', '\xB0', '\xE0', '\xB0', '\xBD', '\xE0', '\xB1', '\xA8', '\xE0', '\xB1', '\xAC',  /* అ క చ ర ఽ ౨ ౬ */
+#ifdef AF_CONFIG_OPTION_CJK
+    '\0',
+    '\xE4', '\xBB', '\x96', '\xE4', '\xBB', '\xAC', '\xE4', '\xBD', '\xA0', '\xE4', '\xBE', '\x86', '\xE5', '\x80', '\x91', '\xE5', '\x88', '\xB0', '\xE5', '\x92', '\x8C', '\xE5', '\x9C', '\xB0',  /* 他们你來們到和地 */
+    '\xE5', '\xAF', '\xB9', '\xE5', '\xB0', '\x8D', '\xE5', '\xB0', '\xB1', '\xE5', '\xB8', '\xAD', '\xE6', '\x88', '\x91', '\xE6', '\x97', '\xB6', '\xE6', '\x99', '\x82', '\xE6', '\x9C', '\x83',  /* 对對就席我时時會 */
+    '\xE6', '\x9D', '\xA5', '\xE7', '\x82', '\xBA', '\xE8', '\x83', '\xBD', '\xE8', '\x88', '\xB0', '\xE8', '\xAA', '\xAA', '\xE8', '\xAF', '\xB4', '\xE8', '\xBF', '\x99', '\xE9', '\x80', '\x99',  /* 来為能舰說说这這 */
+    '\xE9', '\xBD', '\x8A', '|',  /* 齊 | */
+    '\xE5', '\x86', '\x9B', '\xE5', '\x90', '\x8C', '\xE5', '\xB7', '\xB2', '\xE6', '\x84', '\xBF', '\xE6', '\x97', '\xA2', '\xE6', '\x98', '\x9F', '\xE6', '\x98', '\xAF', '\xE6', '\x99', '\xAF',  /* 军同已愿既星是景 */
+    '\xE6', '\xB0', '\x91', '\xE7', '\x85', '\xA7', '\xE7', '\x8E', '\xB0', '\xE7', '\x8F', '\xBE', '\xE7', '\x90', '\x86', '\xE7', '\x94', '\xA8', '\xE7', '\xBD', '\xAE', '\xE8', '\xA6', '\x81',  /* 民照现現理用置要 */
+    '\xE8', '\xBB', '\x8D', '\xE9', '\x82', '\xA3', '\xE9', '\x85', '\x8D', '\xE9', '\x87', '\x8C', '\xE9', '\x96', '\x8B', '\xE9', '\x9B', '\xB7', '\xE9', '\x9C', '\xB2', '\xE9', '\x9D', '\xA2',  /* 軍那配里開雷露面 */
+    '\xE9', '\xA1', '\xBE',  /* 顾 */
+    '\0',
+    '\xE4', '\xB8', '\xAA', '\xE4', '\xB8', '\xBA', '\xE4', '\xBA', '\xBA', '\xE4', '\xBB', '\x96', '\xE4', '\xBB', '\xA5', '\xE4', '\xBB', '\xAC', '\xE4', '\xBD', '\xA0', '\xE4', '\xBE', '\x86',  /* 个为人他以们你來 */
+    '\xE5', '\x80', '\x8B', '\xE5', '\x80', '\x91', '\xE5', '\x88', '\xB0', '\xE5', '\x92', '\x8C', '\xE5', '\xA4', '\xA7', '\xE5', '\xAF', '\xB9', '\xE5', '\xB0', '\x8D', '\xE5', '\xB0', '\xB1',  /* 個們到和大对對就 */
+    '\xE6', '\x88', '\x91', '\xE6', '\x97', '\xB6', '\xE6', '\x99', '\x82', '\xE6', '\x9C', '\x89', '\xE6', '\x9D', '\xA5', '\xE7', '\x82', '\xBA', '\xE8', '\xA6', '\x81', '\xE8', '\xAA', '\xAA',  /* 我时時有来為要說 */
+    '\xE8', '\xAF', '\xB4', '|',  /* 说 | */
+    '\xE4', '\xB8', '\xBB', '\xE4', '\xBA', '\x9B', '\xE5', '\x9B', '\xA0', '\xE5', '\xAE', '\x83', '\xE6', '\x83', '\xB3', '\xE6', '\x84', '\x8F', '\xE7', '\x90', '\x86', '\xE7', '\x94', '\x9F',  /* 主些因它想意理生 */
+    '\xE7', '\x95', '\xB6', '\xE7', '\x9C', '\x8B', '\xE7', '\x9D', '\x80', '\xE7', '\xBD', '\xAE', '\xE8', '\x80', '\x85', '\xE8', '\x87', '\xAA', '\xE8', '\x91', '\x97', '\xE8', '\xA3', '\xA1',  /* 當看着置者自著裡 */
+    '\xE8', '\xBF', '\x87', '\xE8', '\xBF', '\x98', '\xE8', '\xBF', '\x9B', '\xE9', '\x80', '\xB2', '\xE9', '\x81', '\x8E', '\xE9', '\x81', '\x93', '\xE9', '\x82', '\x84', '\xE9', '\x87', '\x8C',  /* 过还进進過道還里 */
+    '\xE9', '\x9D', '\xA2',  /* 面 */
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+    '\0',
+    '\xE4', '\xBA', '\x9B', '\xE4', '\xBB', '\xAC', '\xE4', '\xBD', '\xA0', '\xE4', '\xBE', '\x86', '\xE5', '\x80', '\x91', '\xE5', '\x88', '\xB0', '\xE5', '\x92', '\x8C', '\xE5', '\x9C', '\xB0',  /* 些们你來們到和地 */
+    '\xE5', '\xA5', '\xB9', '\xE5', '\xB0', '\x86', '\xE5', '\xB0', '\x87', '\xE5', '\xB0', '\xB1', '\xE5', '\xB9', '\xB4', '\xE5', '\xBE', '\x97', '\xE6', '\x83', '\x85', '\xE6', '\x9C', '\x80',  /* 她将將就年得情最 */
+    '\xE6', '\xA0', '\xB7', '\xE6', '\xA8', '\xA3', '\xE7', '\x90', '\x86', '\xE8', '\x83', '\xBD', '\xE8', '\xAA', '\xAA', '\xE8', '\xAF', '\xB4', '\xE8', '\xBF', '\x99', '\xE9', '\x80', '\x99',  /* 样樣理能說说这這 */
+    '\xE9', '\x80', '\x9A', '|',  /* 通 | */
+    '\xE5', '\x8D', '\xB3', '\xE5', '\x90', '\x97', '\xE5', '\x90', '\xA7', '\xE5', '\x90', '\xAC', '\xE5', '\x91', '\xA2', '\xE5', '\x93', '\x81', '\xE5', '\x93', '\x8D', '\xE5', '\x97', '\x8E',  /* 即吗吧听呢品响嗎 */
+    '\xE5', '\xB8', '\x88', '\xE5', '\xB8', '\xAB', '\xE6', '\x94', '\xB6', '\xE6', '\x96', '\xAD', '\xE6', '\x96', '\xB7', '\xE6', '\x98', '\x8E', '\xE7', '\x9C', '\xBC', '\xE9', '\x96', '\x93',  /* 师師收断斷明眼間 */
+    '\xE9', '\x97', '\xB4', '\xE9', '\x99', '\x85', '\xE9', '\x99', '\x88', '\xE9', '\x99', '\x90', '\xE9', '\x99', '\xA4', '\xE9', '\x99', '\xB3', '\xE9', '\x9A', '\x8F', '\xE9', '\x9A', '\x9B',  /* 间际陈限除陳随際 */
+    '\xE9', '\x9A', '\xA8',  /* 隨 */
+    '\0',
+    '\xE4', '\xBA', '\x8B', '\xE5', '\x89', '\x8D', '\xE5', '\xAD', '\xB8', '\xE5', '\xB0', '\x86', '\xE5', '\xB0', '\x87', '\xE6', '\x83', '\x85', '\xE6', '\x83', '\xB3', '\xE6', '\x88', '\x96',  /* 事前學将將情想或 */
+    '\xE6', '\x94', '\xBF', '\xE6', '\x96', '\xAF', '\xE6', '\x96', '\xB0', '\xE6', '\xA0', '\xB7', '\xE6', '\xA8', '\xA3', '\xE6', '\xB0', '\x91', '\xE6', '\xB2', '\x92', '\xE6', '\xB2', '\xA1',  /* 政斯新样樣民沒没 */
+    '\xE7', '\x84', '\xB6', '\xE7', '\x89', '\xB9', '\xE7', '\x8E', '\xB0', '\xE7', '\x8F', '\xBE', '\xE7', '\x90', '\x83', '\xE7', '\xAC', '\xAC', '\xE7', '\xB6', '\x93', '\xE8', '\xB0', '\x81',  /* 然特现現球第經谁 */
+    '\xE8', '\xB5', '\xB7', '|',  /* 起 | */
+    '\xE4', '\xBE', '\x8B', '\xE5', '\x88', '\xA5', '\xE5', '\x88', '\xAB', '\xE5', '\x88', '\xB6', '\xE5', '\x8A', '\xA8', '\xE5', '\x8B', '\x95', '\xE5', '\x90', '\x97', '\xE5', '\x97', '\x8E',  /* 例別别制动動吗嗎 */
+    '\xE5', '\xA2', '\x9E', '\xE6', '\x8C', '\x87', '\xE6', '\x98', '\x8E', '\xE6', '\x9C', '\x9D', '\xE6', '\x9C', '\x9F', '\xE6', '\x9E', '\x84', '\xE7', '\x89', '\xA9', '\xE7', '\xA1', '\xAE',  /* 增指明朝期构物确 */
+    '\xE7', '\xA7', '\x8D', '\xE8', '\xAA', '\xBF', '\xE8', '\xB0', '\x83', '\xE8', '\xB2', '\xBB', '\xE8', '\xB4', '\xB9', '\xE9', '\x82', '\xA3', '\xE9', '\x83', '\xBD', '\xE9', '\x96', '\x93',  /* 种調调費费那都間 */
+    '\xE9', '\x97', '\xB4',  /* 间 */
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+#endif /* AF_CONFIG_OPTION_CJK                */
+    '\0',
+
+  };
+
+
+  /* stringsets are specific to styles */
+  FT_LOCAL_ARRAY_DEF( AF_Blue_StringRec )
+  af_blue_stringsets[] =
+  {
+    /* */
+    { AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP,     AF_BLUE_PROPERTY_LATIN_TOP        },
+    { AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM,  0                                 },
+    { AF_BLUE_STRING_CYRILLIC_SMALL,           AF_BLUE_PROPERTY_LATIN_TOP      |
+                                               AF_BLUE_PROPERTY_LATIN_X_HEIGHT   },
+    { AF_BLUE_STRING_CYRILLIC_SMALL,           0                                 },
+    { AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER, 0                                 },
+    { AF_BLUE_STRING_MAX,                      0                                 },
+    { AF_BLUE_STRING_DEVANAGARI_TOP,    AF_BLUE_PROPERTY_LATIN_TOP        },
+    { AF_BLUE_STRING_DEVANAGARI_HEAD,   AF_BLUE_PROPERTY_LATIN_TOP        },
+    { AF_BLUE_STRING_DEVANAGARI_BASE,   AF_BLUE_PROPERTY_LATIN_TOP      |
+                                        AF_BLUE_PROPERTY_LATIN_NEUTRAL  |
+                                        AF_BLUE_PROPERTY_LATIN_X_HEIGHT   },
+    { AF_BLUE_STRING_DEVANAGARI_BASE,   0                                 },
+    { AF_BLUE_STRING_DEVANAGARI_BOTTOM, 0                                 },
+    { AF_BLUE_STRING_MAX,               0                                 },
+    { AF_BLUE_STRING_GREEK_CAPITAL_TOP,     AF_BLUE_PROPERTY_LATIN_TOP        },
+    { AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM,  0                                 },
+    { AF_BLUE_STRING_GREEK_SMALL_BETA_TOP,  AF_BLUE_PROPERTY_LATIN_TOP        },
+    { AF_BLUE_STRING_GREEK_SMALL,           AF_BLUE_PROPERTY_LATIN_TOP      |
+                                            AF_BLUE_PROPERTY_LATIN_X_HEIGHT   },
+    { AF_BLUE_STRING_GREEK_SMALL,           0                                 },
+    { AF_BLUE_STRING_GREEK_SMALL_DESCENDER, 0                                 },
+    { AF_BLUE_STRING_MAX,                   0                                 },
+    { AF_BLUE_STRING_HEBREW_TOP,       AF_BLUE_PROPERTY_LATIN_TOP  |
+                                       AF_BLUE_PROPERTY_LATIN_LONG   },
+    { AF_BLUE_STRING_HEBREW_BOTTOM,    0                             },
+    { AF_BLUE_STRING_HEBREW_DESCENDER, 0                             },
+    { AF_BLUE_STRING_MAX,              0                             },
+    { AF_BLUE_STRING_LATIN_CAPITAL_TOP,     AF_BLUE_PROPERTY_LATIN_TOP        },
+    { AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM,  0                                 },
+    { AF_BLUE_STRING_LATIN_SMALL_F_TOP,     AF_BLUE_PROPERTY_LATIN_TOP        },
+    { AF_BLUE_STRING_LATIN_SMALL,           AF_BLUE_PROPERTY_LATIN_TOP      |
+                                            AF_BLUE_PROPERTY_LATIN_X_HEIGHT   },
+    { AF_BLUE_STRING_LATIN_SMALL,           0                                 },
+    { AF_BLUE_STRING_LATIN_SMALL_DESCENDER, 0                                 },
+    { AF_BLUE_STRING_MAX,                   0                                 },
+    { AF_BLUE_STRING_TELUGU_TOP,    AF_BLUE_PROPERTY_LATIN_TOP },
+    { AF_BLUE_STRING_TELUGU_BOTTOM, 0                          },
+    { AF_BLUE_STRING_MAX,           0                          },
+#ifdef AF_CONFIG_OPTION_CJK
+    { AF_BLUE_STRING_CJK_TOP,    AF_BLUE_PROPERTY_CJK_TOP     },
+    { AF_BLUE_STRING_CJK_BOTTOM, 0                            },
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+    { AF_BLUE_STRING_CJK_LEFT,   AF_BLUE_PROPERTY_CJK_HORIZ   },
+    { AF_BLUE_STRING_CJK_RIGHT,  AF_BLUE_PROPERTY_CJK_HORIZ |
+                                 AF_BLUE_PROPERTY_CJK_RIGHT   },
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+    { AF_BLUE_STRING_MAX,        0                            },
+#endif /* AF_CONFIG_OPTION_CJK                */
+
+  };
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afblue.cin b/src/3rdparty/freetype/src/autofit/afblue.cin
new file mode 100644
index 0000000000..c6762bec30
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afblue.cin
@@ -0,0 +1,39 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afblue.c                                                               */
+/*                                                                         */
+/*    Auto-fitter data for blue strings (body).                            */
+/*                                                                         */
+/*  Copyright 2013 by                                                      */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#include "aftypes.h"
+
+
+  FT_LOCAL_ARRAY_DEF( char )
+  af_blue_strings[] =
+  {
+    /* */
+@AF_BLUE_STRINGS_ARRAY@
+  };
+
+
+  /* stringsets are specific to styles */
+  FT_LOCAL_ARRAY_DEF( AF_Blue_StringRec )
+  af_blue_stringsets[] =
+  {
+    /* */
+@AF_BLUE_STRINGSETS_ARRAY@
+  };
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afblue.dat b/src/3rdparty/freetype/src/autofit/afblue.dat
new file mode 100644
index 0000000000..3f98c13b24
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afblue.dat
@@ -0,0 +1,337 @@
+//  afblue.dat
+//
+//    Auto-fitter data for blue strings.
+//
+//  Copyright 2013, 2014 by
+//  David Turner, Robert Wilhelm, and Werner Lemberg.
+//
+//  This file is part of the FreeType project, and may only be used,
+//  modified, and distributed under the terms of the FreeType project
+//  license, LICENSE.TXT.  By continuing to use, modify, or distribute
+//  this file you indicate that you have read the license and
+//  understand and accept it fully.
+
+
+// This file contains data specific to blue zones.  It gets processed by
+// a script to simulate `jagged arrays', with enumeration values holding
+// offsets into the arrays.
+//
+// The format of the file is rather simple:  A section starts with three
+// labels separated by whitespace and followed by a colon (everything in a
+// single line); the first label gives the name of the enumeration template,
+// the second the name of the array template, and the third the name of the
+// `maximum' template, holding the size of the largest array element.  The
+// script then fills the corresponding templates (indicated by `@'
+// characters around the name).
+//
+// A section contains one or more data records.  Each data record consists
+// of two or more lines.  The first line holds the enumeration name, and the
+// remaining lines the corresponding array data.
+//
+// There are two possible representations for array data.
+//
+// - A string of characters in UTF-8 encoding enclosed in double quotes,
+//   using C syntax.  There can be only one string per line, thus the
+//   starting and ending double quote must be the first and last character
+//   in the line, respectively, ignoring whitespace before and after the
+//   string.  Space characters within the string are ignored too.  If there
+//   are multiple strings (in multiple lines), they are concatenated to a
+//   single string.  In the output, a string gets represented as a series of
+//   singles bytes, followed by a zero byte.  The enumeration values simply
+//   hold byte offsets to the start of the corresponding strings.
+//
+// - Data blocks enclosed in balanced braces, which get copied verbatim and
+//   which can span multiple lines.  The opening brace of a block must be
+//   the first character of a line (ignoring whitespace), and the closing
+//   brace the last (ignoring whitespace also).  The script appends a comma
+//   character after each block and counts the number of blocks to set the
+//   enumeration values.
+//
+// A section can contain either strings only or data blocks only.
+//
+// A comment line starts with `//'; it gets removed.  A preprocessor
+// directive line (using the standard syntax of `cpp') starts with `#' and
+// gets copied verbatim to both the enumeration and the array.  Whitespace
+// outside of a string is insignificant.
+//
+// Preprocessor directives are ignored while the script computes maximum
+// values; this essentially means that the maximum values can easily be too
+// large.  Given that the purpose of those values is to create local
+// fixed-size arrays at compile time for further processing of the blue zone
+// data, this isn't a problem.  Note the the final zero byte of a string is
+// not counted.  Note also that the count holds the number of UTF-8 encoded
+// characters, not bytes.
+
+
+// The blue zone string data, to be used in the blue stringsets below.
+
+AF_BLUE_STRING_ENUM AF_BLUE_STRINGS_ARRAY AF_BLUE_STRING_MAX_LEN:
+
+  AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP
+    "БВЕПЗОСЭ"
+  AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM
+    "БВЕШЗОСЭ"
+  AF_BLUE_STRING_CYRILLIC_SMALL
+    "хпншезос"
+  AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER
+    "руф"
+
+  // we separate the letters with spaces to avoid ligatures;
+  // this is just for convenience to simplify reading
+  AF_BLUE_STRING_DEVANAGARI_BASE
+    "क म अ आ थ ध भ श"
+  AF_BLUE_STRING_DEVANAGARI_TOP
+    "ई ऐ ओ औ ि ी ो ौ"
+  // note that some fonts have extreme variation in the height of the
+  // round head elements; for this reason we also define the `base'
+  // blue zone, which must be always present
+  AF_BLUE_STRING_DEVANAGARI_HEAD
+    "क म अ आ थ ध भ श"
+  AF_BLUE_STRING_DEVANAGARI_BOTTOM
+    "ु ृ"
+
+  AF_BLUE_STRING_GREEK_CAPITAL_TOP
+    "ΓΒΕΖΘΟΩ"
+  AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM
+    "ΒΔΖΞΘΟ"
+  AF_BLUE_STRING_GREEK_SMALL_BETA_TOP
+    "βθδζλξ"
+  AF_BLUE_STRING_GREEK_SMALL
+    "αειοπστω"
+  AF_BLUE_STRING_GREEK_SMALL_DESCENDER
+    "βγημρφχψ"
+
+  AF_BLUE_STRING_HEBREW_TOP
+    "בדהחךכםס"
+  AF_BLUE_STRING_HEBREW_BOTTOM
+    "בטכםסצ"
+  AF_BLUE_STRING_HEBREW_DESCENDER
+    "קךןףץ"
+
+  AF_BLUE_STRING_LATIN_CAPITAL_TOP
+    "THEZOCQS"
+  AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM
+    "HEZLOCUS"
+  AF_BLUE_STRING_LATIN_SMALL_F_TOP
+    "fijkdbh"
+  AF_BLUE_STRING_LATIN_SMALL
+    "xzroesc"
+  AF_BLUE_STRING_LATIN_SMALL_DESCENDER
+    "pqgjy"
+
+  // we separate the letters with spaces to avoid ligatures;
+  // this is just for convenience to simplify reading
+  AF_BLUE_STRING_TELUGU_TOP
+    "ఇ ఌ ఙ ఞ ణ ఱ ౯"
+
+  AF_BLUE_STRING_TELUGU_BOTTOM
+    "అ క చ ర ఽ ౨ ౬"
+
+#ifdef AF_CONFIG_OPTION_CJK
+
+  AF_BLUE_STRING_CJK_TOP
+    "他们你來們到和地"
+    "对對就席我时時會"
+    "来為能舰說说这這"
+    "齊 |"
+    "军同已愿既星是景"
+    "民照现現理用置要"
+    "軍那配里開雷露面"
+    "顾"
+  AF_BLUE_STRING_CJK_BOTTOM
+    "个为人他以们你來"
+    "個們到和大对對就"
+    "我时時有来為要說"
+    "说 |"
+    "主些因它想意理生"
+    "當看着置者自著裡"
+    "过还进進過道還里"
+    "面"
+
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+
+  AF_BLUE_STRING_CJK_LEFT
+    "些们你來們到和地"
+    "她将將就年得情最"
+    "样樣理能說说这這"
+    "通 |"
+    "即吗吧听呢品响嗎"
+    "师師收断斷明眼間"
+    "间际陈限除陳随際"
+    "隨"
+  AF_BLUE_STRING_CJK_RIGHT
+    "事前學将將情想或"
+    "政斯新样樣民沒没"
+    "然特现現球第經谁"
+    "起 |"
+    "例別别制动動吗嗎"
+    "增指明朝期构物确"
+    "种調调費费那都間"
+    "间"
+
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+
+#endif /* AF_CONFIG_OPTION_CJK                */
+
+
+// The blue zone stringsets, as used in the script styles, cf. `afstyles.h'.
+//
+// The AF_BLUE_PROPERTY_XXX flags are defined in `afblue.h'; here some
+// explanations.
+//
+// A blue zone in general is defined by a reference and an overshoot line.
+// During the hinting process, all coordinate values between those two lines
+// are set equal to the reference value, provided that the blue zone is not
+// wider than 0.75 pixels (otherwise the blue zone gets ignored).  All
+// entries must have `AF_BLUE_STRING_MAX' as the final line.
+//
+// During the glyph analysis, edges are sorted from bottom to top, and then
+// sequentially checked, edge by edge, against the blue zones in the order
+// given below.
+//
+//
+// latin auto-hinter
+// -----------------
+//
+// Characters in a blue string are automatically classified as having a flat
+// (reference) or a round (overshoot) extremum.  The blue zone is then set
+// up by the mean values of all flat extrema and all round extrema,
+// respectively.  Only horizontal blue zones (i.e., adjusting vertical
+// coordinate values) are supported.
+//
+// For the latin auto-hinter, the overshoot should be larger than the
+// reference for top zones, and vice versa for bottom zones.
+//
+//   LATIN_TOP
+//     Take the maximum flat and round coordinate values of the blue string
+//     characters for computing the blue zone's reference and overshoot
+//     values.
+//
+//     If not set, take the minimum values.
+//
+//   LATIN_NEUTRAL
+//     Ignore round extrema and define the blue zone with flat values only.
+//     Both top and bottom of contours can match.  This is useful for
+//     scripts like Devanagari where vowel signs attach to the base
+//     character and are implemented as components of composite glyphs.
+//
+//     If not set, both round and flat extrema are taken into account.
+//     Additionally, only the top or the bottom of a contour can match,
+//     depending on the LATIN_TOP flag.
+//
+//     Neutral blue zones should always follow non-neutral blue zones.
+//
+//   LATIN_X_HEIGHT
+//     Scale all glyphs vertically from the corresponding script to make the
+//     reference line of this blue zone align on the grid.  The scaling
+//     takes place before all other blue zones get aligned to the grid.
+//     Only one blue character string of a script style can have this flag.
+//
+//   LATIN_LONG
+//     Apply an additional constraint for blue zone values: Don't
+//     necessarily use the extremum as-is but a segment of the topmost (or
+//     bottommost) contour that is longer than a heuristic threshold, and
+//     which is not too far away vertically from the real extremum.  This
+//     ensures that small bumps in the outline are ignored (for example, the
+//     `vertical serifs' found in many Hebrew glyph designs).
+//
+//     The segment must be at least EM/25 font units long, and the distance
+//     to the extremum must be smaller than EM/4.
+//
+//
+// cjk auto-hinter
+// ---------------
+//
+// Characters in a blue string are *not* automatically classified.  Instead,
+// first come the characters used for the overshoot value, then the
+// character `|', then the characters used for the reference value.  The
+// blue zone is then set up by the mean values of all reference values and
+// all overshoot values, respectively.  Both horizontal and vertical blue
+// zones (i.e., adjusting vertical and horizontal coordinate values,
+// respectively) are supported.
+//
+// For the cjk auto-hinter, the overshoot should be smaller than the
+// reference for top zones, and vice versa for bottom zones.
+//
+//   CJK_TOP
+//     Take the maximum flat and round coordinate values of the blue string
+//     characters.  If not set, take the minimum values.
+//
+//   CJK_RIGHT
+//     A synonym for CJK_TOP.  If CJK_HORIZ is set, this flag indicates the
+//     right blue zone, taking horizontal maximum values.
+//
+//   CJK_HORIZ
+//     Define a blue zone for horizontal hinting (i.e., vertical blue
+//     zones).  If not set, this is a blue zone for vertical hinting.
+
+
+AF_BLUE_STRINGSET_ENUM AF_BLUE_STRINGSETS_ARRAY AF_BLUE_STRINGSET_MAX_LEN:
+
+  AF_BLUE_STRINGSET_CYRL
+    { AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP,     AF_BLUE_PROPERTY_LATIN_TOP        }
+    { AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM,  0                                 }
+    { AF_BLUE_STRING_CYRILLIC_SMALL,           AF_BLUE_PROPERTY_LATIN_TOP      |
+                                               AF_BLUE_PROPERTY_LATIN_X_HEIGHT   }
+    { AF_BLUE_STRING_CYRILLIC_SMALL,           0                                 }
+    { AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER, 0                                 }
+    { AF_BLUE_STRING_MAX,                      0                                 }
+
+  AF_BLUE_STRINGSET_DEVA
+    { AF_BLUE_STRING_DEVANAGARI_TOP,    AF_BLUE_PROPERTY_LATIN_TOP        }
+    { AF_BLUE_STRING_DEVANAGARI_HEAD,   AF_BLUE_PROPERTY_LATIN_TOP        }
+    { AF_BLUE_STRING_DEVANAGARI_BASE,   AF_BLUE_PROPERTY_LATIN_TOP      |
+                                        AF_BLUE_PROPERTY_LATIN_NEUTRAL  |
+                                        AF_BLUE_PROPERTY_LATIN_X_HEIGHT   }
+    { AF_BLUE_STRING_DEVANAGARI_BASE,   0                                 }
+    { AF_BLUE_STRING_DEVANAGARI_BOTTOM, 0                                 }
+    { AF_BLUE_STRING_MAX,               0                                 }
+
+  AF_BLUE_STRINGSET_GREK
+    { AF_BLUE_STRING_GREEK_CAPITAL_TOP,     AF_BLUE_PROPERTY_LATIN_TOP        }
+    { AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM,  0                                 }
+    { AF_BLUE_STRING_GREEK_SMALL_BETA_TOP,  AF_BLUE_PROPERTY_LATIN_TOP        }
+    { AF_BLUE_STRING_GREEK_SMALL,           AF_BLUE_PROPERTY_LATIN_TOP      |
+                                            AF_BLUE_PROPERTY_LATIN_X_HEIGHT   }
+    { AF_BLUE_STRING_GREEK_SMALL,           0                                 }
+    { AF_BLUE_STRING_GREEK_SMALL_DESCENDER, 0                                 }
+    { AF_BLUE_STRING_MAX,                   0                                 }
+
+  AF_BLUE_STRINGSET_HEBR
+    { AF_BLUE_STRING_HEBREW_TOP,       AF_BLUE_PROPERTY_LATIN_TOP  |
+                                       AF_BLUE_PROPERTY_LATIN_LONG   }
+    { AF_BLUE_STRING_HEBREW_BOTTOM,    0                             }
+    { AF_BLUE_STRING_HEBREW_DESCENDER, 0                             }
+    { AF_BLUE_STRING_MAX,              0                             }
+
+  AF_BLUE_STRINGSET_LATN
+    { AF_BLUE_STRING_LATIN_CAPITAL_TOP,     AF_BLUE_PROPERTY_LATIN_TOP        }
+    { AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM,  0                                 }
+    { AF_BLUE_STRING_LATIN_SMALL_F_TOP,     AF_BLUE_PROPERTY_LATIN_TOP        }
+    { AF_BLUE_STRING_LATIN_SMALL,           AF_BLUE_PROPERTY_LATIN_TOP      |
+                                            AF_BLUE_PROPERTY_LATIN_X_HEIGHT   }
+    { AF_BLUE_STRING_LATIN_SMALL,           0                                 }
+    { AF_BLUE_STRING_LATIN_SMALL_DESCENDER, 0                                 }
+    { AF_BLUE_STRING_MAX,                   0                                 }
+
+  AF_BLUE_STRINGSET_TELU
+    { AF_BLUE_STRING_TELUGU_TOP,    AF_BLUE_PROPERTY_LATIN_TOP }
+    { AF_BLUE_STRING_TELUGU_BOTTOM, 0                          }
+    { AF_BLUE_STRING_MAX,           0                          }
+
+#ifdef AF_CONFIG_OPTION_CJK
+
+  AF_BLUE_STRINGSET_HANI
+    { AF_BLUE_STRING_CJK_TOP,    AF_BLUE_PROPERTY_CJK_TOP     }
+    { AF_BLUE_STRING_CJK_BOTTOM, 0                            }
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+    { AF_BLUE_STRING_CJK_LEFT,   AF_BLUE_PROPERTY_CJK_HORIZ   }
+    { AF_BLUE_STRING_CJK_RIGHT,  AF_BLUE_PROPERTY_CJK_HORIZ |
+                                 AF_BLUE_PROPERTY_CJK_RIGHT   }
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+    { AF_BLUE_STRING_MAX,        0                            }
+
+#endif /* AF_CONFIG_OPTION_CJK                */
+
+
+// END
diff --git a/src/3rdparty/freetype/src/autofit/afblue.h b/src/3rdparty/freetype/src/autofit/afblue.h
new file mode 100644
index 0000000000..a86184191d
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afblue.h
@@ -0,0 +1,203 @@
+/* This file has been generated by the Perl script `afblue.pl', */
+/* using data from file `afblue.dat'.                           */
+
+/***************************************************************************/
+/*                                                                         */
+/*  afblue.h                                                               */
+/*                                                                         */
+/*    Auto-fitter data for blue strings (specification).                   */
+/*                                                                         */
+/*  Copyright 2013, 2014 by                                                */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#ifndef __AFBLUE_H__
+#define __AFBLUE_H__
+
+
+FT_BEGIN_HEADER
+
+
+  /* an auxiliary macro to decode a UTF-8 character -- since we only use */
+  /* hard-coded, self-converted data, no error checking is performed     */
+#define GET_UTF8_CHAR( ch, p )                    \
+          ch = (unsigned char)*p++;               \
+          if ( ch >= 0x80 )                       \
+          {                                       \
+            FT_UInt  len;                         \
+                                                  \
+                                                  \
+            if ( ch < 0xE0 )                      \
+            {                                     \
+              len = 1;                            \
+              ch &= 0x1F;                         \
+            }                                     \
+            else if ( ch < 0xF0 )                 \
+            {                                     \
+              len = 2;                            \
+              ch &= 0x0F;                         \
+            }                                     \
+            else                                  \
+            {                                     \
+              len = 3;                            \
+              ch &= 0x07;                         \
+            }                                     \
+                                                  \
+            for ( ; len > 0; len-- )              \
+              ch = ( ch << 6 ) | ( *p++ & 0x3F ); \
+          }
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                    B L U E   S T R I N G S                    *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /* At the bottommost level, we define strings for finding blue zones. */
+
+
+#define AF_BLUE_STRING_MAX_LEN  51
+
+  /* The AF_Blue_String enumeration values are offsets into the */
+  /* `af_blue_strings' array.                                   */
+
+  typedef enum  AF_Blue_String_
+  {
+    AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP = 0,
+    AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM = 17,
+    AF_BLUE_STRING_CYRILLIC_SMALL = 34,
+    AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER = 51,
+    AF_BLUE_STRING_DEVANAGARI_BASE = 58,
+    AF_BLUE_STRING_DEVANAGARI_TOP = 83,
+    AF_BLUE_STRING_DEVANAGARI_HEAD = 108,
+    AF_BLUE_STRING_DEVANAGARI_BOTTOM = 133,
+    AF_BLUE_STRING_GREEK_CAPITAL_TOP = 140,
+    AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM = 155,
+    AF_BLUE_STRING_GREEK_SMALL_BETA_TOP = 168,
+    AF_BLUE_STRING_GREEK_SMALL = 181,
+    AF_BLUE_STRING_GREEK_SMALL_DESCENDER = 198,
+    AF_BLUE_STRING_HEBREW_TOP = 215,
+    AF_BLUE_STRING_HEBREW_BOTTOM = 232,
+    AF_BLUE_STRING_HEBREW_DESCENDER = 245,
+    AF_BLUE_STRING_LATIN_CAPITAL_TOP = 256,
+    AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM = 265,
+    AF_BLUE_STRING_LATIN_SMALL_F_TOP = 274,
+    AF_BLUE_STRING_LATIN_SMALL = 282,
+    AF_BLUE_STRING_LATIN_SMALL_DESCENDER = 290,
+    AF_BLUE_STRING_TELUGU_TOP = 296,
+    AF_BLUE_STRING_TELUGU_BOTTOM = 318,
+    af_blue_1_1 = 339,
+#ifdef AF_CONFIG_OPTION_CJK
+    AF_BLUE_STRING_CJK_TOP = af_blue_1_1 + 1,
+    AF_BLUE_STRING_CJK_BOTTOM = af_blue_1_1 + 153,
+    af_blue_1_1_1 = af_blue_1_1 + 304,
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+    AF_BLUE_STRING_CJK_LEFT = af_blue_1_1_1 + 1,
+    AF_BLUE_STRING_CJK_RIGHT = af_blue_1_1_1 + 153,
+    af_blue_1_1_2 = af_blue_1_1_1 + 304,
+#else
+    af_blue_1_1_2 = af_blue_1_1_1 + 0,
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+    af_blue_1_2 = af_blue_1_1_2 + 0,
+#else
+    af_blue_1_2 = af_blue_1_1 + 0,
+#endif /* AF_CONFIG_OPTION_CJK                */
+
+
+    AF_BLUE_STRING_MAX   /* do not remove */
+
+  } AF_Blue_String;
+
+
+  FT_LOCAL_ARRAY( char )
+  af_blue_strings[];
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                 B L U E   S T R I N G S E T S                 *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /* The next level is to group blue strings into style-specific sets. */
+
+
+  /* Properties are specific to a writing system.  We assume that a given  */
+  /* blue string can't be used in more than a single writing system, which */
+  /* is a safe bet.                                                        */
+#define AF_BLUE_PROPERTY_LATIN_TOP       ( 1 << 0 )   /* must have value 1 */
+#define AF_BLUE_PROPERTY_LATIN_NEUTRAL   ( 1 << 1 )
+#define AF_BLUE_PROPERTY_LATIN_X_HEIGHT  ( 1 << 2 )
+#define AF_BLUE_PROPERTY_LATIN_LONG      ( 1 << 3 )
+
+#define AF_BLUE_PROPERTY_CJK_TOP    ( 1 << 0 )        /* must have value 1 */
+#define AF_BLUE_PROPERTY_CJK_HORIZ  ( 1 << 1 )        /* must have value 2 */
+#define AF_BLUE_PROPERTY_CJK_RIGHT  AF_BLUE_PROPERTY_CJK_TOP
+
+
+#define AF_BLUE_STRINGSET_MAX_LEN  7
+
+  /* The AF_Blue_Stringset enumeration values are offsets into the */
+  /* `af_blue_stringsets' array.                                   */
+
+  typedef enum  AF_Blue_Stringset_
+  {
+    AF_BLUE_STRINGSET_CYRL = 0,
+    AF_BLUE_STRINGSET_DEVA = 6,
+    AF_BLUE_STRINGSET_GREK = 12,
+    AF_BLUE_STRINGSET_HEBR = 19,
+    AF_BLUE_STRINGSET_LATN = 23,
+    AF_BLUE_STRINGSET_TELU = 30,
+    af_blue_2_1 = 33,
+#ifdef AF_CONFIG_OPTION_CJK
+    AF_BLUE_STRINGSET_HANI = af_blue_2_1 + 0,
+    af_blue_2_1_1 = af_blue_2_1 + 2,
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+    af_blue_2_1_2 = af_blue_2_1_1 + 2,
+#else
+    af_blue_2_1_2 = af_blue_2_1_1 + 0,
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+    af_blue_2_2 = af_blue_2_1_2 + 1,
+#else
+    af_blue_2_2 = af_blue_2_1 + 0,
+#endif /* AF_CONFIG_OPTION_CJK                */
+
+
+    AF_BLUE_STRINGSET_MAX   /* do not remove */
+
+  } AF_Blue_Stringset;
+
+
+  typedef struct  AF_Blue_StringRec_
+  {
+    AF_Blue_String  string;
+    FT_UShort       properties;
+
+  } AF_Blue_StringRec;
+
+
+  FT_LOCAL_ARRAY( AF_Blue_StringRec )
+  af_blue_stringsets[];
+
+/* */
+
+FT_END_HEADER
+
+
+#endif /* __AFBLUE_H__ */
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afblue.hin b/src/3rdparty/freetype/src/autofit/afblue.hin
new file mode 100644
index 0000000000..0b4b48d7fe
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afblue.hin
@@ -0,0 +1,142 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afblue.h                                                               */
+/*                                                                         */
+/*    Auto-fitter data for blue strings (specification).                   */
+/*                                                                         */
+/*  Copyright 2013, 2014 by                                                */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#ifndef __AFBLUE_H__
+#define __AFBLUE_H__
+
+
+FT_BEGIN_HEADER
+
+
+  /* an auxiliary macro to decode a UTF-8 character -- since we only use */
+  /* hard-coded, self-converted data, no error checking is performed     */
+#define GET_UTF8_CHAR( ch, p )                    \
+          ch = (unsigned char)*p++;               \
+          if ( ch >= 0x80 )                       \
+          {                                       \
+            FT_UInt  len;                         \
+                                                  \
+                                                  \
+            if ( ch < 0xE0 )                      \
+            {                                     \
+              len = 1;                            \
+              ch &= 0x1F;                         \
+            }                                     \
+            else if ( ch < 0xF0 )                 \
+            {                                     \
+              len = 2;                            \
+              ch &= 0x0F;                         \
+            }                                     \
+            else                                  \
+            {                                     \
+              len = 3;                            \
+              ch &= 0x07;                         \
+            }                                     \
+                                                  \
+            for ( ; len > 0; len-- )              \
+              ch = ( ch << 6 ) | ( *p++ & 0x3F ); \
+          }
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                    B L U E   S T R I N G S                    *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /* At the bottommost level, we define strings for finding blue zones. */
+
+
+#define AF_BLUE_STRING_MAX_LEN  @AF_BLUE_STRING_MAX_LEN@
+
+  /* The AF_Blue_String enumeration values are offsets into the */
+  /* `af_blue_strings' array.                                   */
+
+  typedef enum  AF_Blue_String_
+  {
+@AF_BLUE_STRING_ENUM@
+
+    AF_BLUE_STRING_MAX   /* do not remove */
+
+  } AF_Blue_String;
+
+
+  FT_LOCAL_ARRAY( char )
+  af_blue_strings[];
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                 B L U E   S T R I N G S E T S                 *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /* The next level is to group blue strings into style-specific sets. */
+
+
+  /* Properties are specific to a writing system.  We assume that a given  */
+  /* blue string can't be used in more than a single writing system, which */
+  /* is a safe bet.                                                        */
+#define AF_BLUE_PROPERTY_LATIN_TOP       ( 1 << 0 )   /* must have value 1 */
+#define AF_BLUE_PROPERTY_LATIN_NEUTRAL   ( 1 << 1 )
+#define AF_BLUE_PROPERTY_LATIN_X_HEIGHT  ( 1 << 2 )
+#define AF_BLUE_PROPERTY_LATIN_LONG      ( 1 << 3 )
+
+#define AF_BLUE_PROPERTY_CJK_TOP    ( 1 << 0 )        /* must have value 1 */
+#define AF_BLUE_PROPERTY_CJK_HORIZ  ( 1 << 1 )        /* must have value 2 */
+#define AF_BLUE_PROPERTY_CJK_RIGHT  AF_BLUE_PROPERTY_CJK_TOP
+
+
+#define AF_BLUE_STRINGSET_MAX_LEN  @AF_BLUE_STRINGSET_MAX_LEN@
+
+  /* The AF_Blue_Stringset enumeration values are offsets into the */
+  /* `af_blue_stringsets' array.                                   */
+
+  typedef enum  AF_Blue_Stringset_
+  {
+@AF_BLUE_STRINGSET_ENUM@
+
+    AF_BLUE_STRINGSET_MAX   /* do not remove */
+
+  } AF_Blue_Stringset;
+
+
+  typedef struct  AF_Blue_StringRec_
+  {
+    AF_Blue_String  string;
+    FT_UShort       properties;
+
+  } AF_Blue_StringRec;
+
+
+  FT_LOCAL_ARRAY( AF_Blue_StringRec )
+  af_blue_stringsets[];
+
+/* */
+
+FT_END_HEADER
+
+
+#endif /* __AFBLUE_H__ */
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afcjk.c b/src/3rdparty/freetype/src/autofit/afcjk.c
index bab0c42bad..048e0e7d02 100644
--- a/src/3rdparty/freetype/src/autofit/afcjk.c
+++ b/src/3rdparty/freetype/src/autofit/afcjk.c
@@ -2,9 +2,9 @@
 /*                                                                         */
 /*  afcjk.c                                                                */
 /*                                                                         */
-/*    Auto-fitter hinting routines for CJK script (body).                  */
+/*    Auto-fitter hinting routines for CJK writing system (body).          */
 /*                                                                         */
-/*  Copyright 2006, 2007, 2008, 2009 by                                    */
+/*  Copyright 2006-2014 by                                                 */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -22,22 +22,39 @@
    *
    */
 
-#include "aftypes.h"
+#include <ft2build.h>
+#include FT_ADVANCES_H
+#include FT_INTERNAL_DEBUG_H
+
+#include "afglobal.h"
+#include "afpic.h"
 #include "aflatin.h"
 
 
 #ifdef AF_CONFIG_OPTION_CJK
 
+#undef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+
 #include "afcjk.h"
 #include "aferrors.h"
 
 
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
 #include "afwarp.h"
 #endif
 
 
   /*************************************************************************/
+  /*                                                                       */
+  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
+  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
+  /* messages during execution.                                            */
+  /*                                                                       */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  trace_afcjk
+
+
+  /*************************************************************************/
   /*************************************************************************/
   /*****                                                               *****/
   /*****              C J K   G L O B A L   M E T R I C S              *****/
@@ -45,59 +62,625 @@
   /*************************************************************************/
   /*************************************************************************/
 
+
+  /* Basically the Latin version with AF_CJKMetrics */
+  /* to replace AF_LatinMetrics.                    */
+
+  FT_LOCAL_DEF( void )
+  af_cjk_metrics_init_widths( AF_CJKMetrics  metrics,
+                              FT_Face        face )
+  {
+    /* scan the array of segments in each direction */
+    AF_GlyphHintsRec  hints[1];
+
+
+    FT_TRACE5(( "\n"
+                "cjk standard widths computation (style `%s')\n"
+                "===================================================\n"
+                "\n",
+                af_style_names[metrics->root.style_class->style] ));
+
+    af_glyph_hints_init( hints, face->memory );
+
+    metrics->axis[AF_DIMENSION_HORZ].width_count = 0;
+    metrics->axis[AF_DIMENSION_VERT].width_count = 0;
+
+    {
+      FT_Error          error;
+      FT_ULong          glyph_index;
+      FT_Long           y_offset;
+      int               dim;
+      AF_CJKMetricsRec  dummy[1];
+      AF_Scaler         scaler = &dummy->root.scaler;
+
+#ifdef FT_CONFIG_OPTION_PIC
+      AF_FaceGlobals  globals = metrics->root.globals;
+#endif
+
+      AF_StyleClass   style_class  = metrics->root.style_class;
+      AF_ScriptClass  script_class = AF_SCRIPT_CLASSES_GET
+                                       [style_class->script];
+
+      FT_UInt32  standard_char;
+
+
+      standard_char = script_class->standard_char1;
+      af_get_char_index( &metrics->root,
+                         standard_char,
+                         &glyph_index,
+                         &y_offset );
+      if ( !glyph_index )
+      {
+        if ( script_class->standard_char2 )
+        {
+          standard_char = script_class->standard_char2;
+          af_get_char_index( &metrics->root,
+                             standard_char,
+                             &glyph_index,
+                             &y_offset );
+          if ( !glyph_index )
+          {
+            if ( script_class->standard_char3 )
+            {
+              standard_char = script_class->standard_char3;
+              af_get_char_index( &metrics->root,
+                                 standard_char,
+                                 &glyph_index,
+                                 &y_offset );
+              if ( !glyph_index )
+                goto Exit;
+            }
+            else
+              goto Exit;
+          }
+        }
+        else
+          goto Exit;
+      }
+
+      FT_TRACE5(( "standard character: U+%04lX (glyph index %d)\n",
+                  standard_char, glyph_index ));
+
+      error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
+      if ( error || face->glyph->outline.n_points <= 0 )
+        goto Exit;
+
+      FT_ZERO( dummy );
+
+      dummy->units_per_em = metrics->units_per_em;
+
+      scaler->x_scale = 0x10000L;
+      scaler->y_scale = 0x10000L;
+      scaler->x_delta = 0;
+      scaler->y_delta = 0;
+
+      scaler->face        = face;
+      scaler->render_mode = FT_RENDER_MODE_NORMAL;
+      scaler->flags       = 0;
+
+      af_glyph_hints_rescale( hints, (AF_StyleMetrics)dummy );
+
+      error = af_glyph_hints_reload( hints, &face->glyph->outline );
+      if ( error )
+        goto Exit;
+
+      for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
+      {
+        AF_CJKAxis    axis    = &metrics->axis[dim];
+        AF_AxisHints  axhints = &hints->axis[dim];
+        AF_Segment    seg, limit, link;
+        FT_UInt       num_widths = 0;
+
+
+        error = af_latin_hints_compute_segments( hints,
+                                                 (AF_Dimension)dim );
+        if ( error )
+          goto Exit;
+
+        af_latin_hints_link_segments( hints,
+                                      0,
+                                      NULL,
+                                      (AF_Dimension)dim );
+
+        seg   = axhints->segments;
+        limit = seg + axhints->num_segments;
+
+        for ( ; seg < limit; seg++ )
+        {
+          link = seg->link;
+
+          /* we only consider stem segments there! */
+          if ( link && link->link == seg && link > seg )
+          {
+            FT_Pos  dist;
+
+
+            dist = seg->pos - link->pos;
+            if ( dist < 0 )
+              dist = -dist;
+
+            if ( num_widths < AF_CJK_MAX_WIDTHS )
+              axis->widths[num_widths++].org = dist;
+          }
+        }
+
+        /* this also replaces multiple almost identical stem widths */
+        /* with a single one (the value 100 is heuristic)           */
+        af_sort_and_quantize_widths( &num_widths, axis->widths,
+                                     dummy->units_per_em / 100 );
+        axis->width_count = num_widths;
+      }
+
+    Exit:
+      for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
+      {
+        AF_CJKAxis  axis = &metrics->axis[dim];
+        FT_Pos      stdw;
+
+
+        stdw = ( axis->width_count > 0 ) ? axis->widths[0].org
+                                         : AF_LATIN_CONSTANT( metrics, 50 );
+
+        /* let's try 20% of the smallest width */
+        axis->edge_distance_threshold = stdw / 5;
+        axis->standard_width          = stdw;
+        axis->extra_light             = 0;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+        {
+          FT_UInt  i;
+
+
+          FT_TRACE5(( "%s widths:\n",
+                      dim == AF_DIMENSION_VERT ? "horizontal"
+                                               : "vertical" ));
+
+          FT_TRACE5(( "  %d (standard)", axis->standard_width ));
+          for ( i = 1; i < axis->width_count; i++ )
+            FT_TRACE5(( " %d", axis->widths[i].org ));
+
+          FT_TRACE5(( "\n" ));
+        }
+#endif
+      }
+    }
+
+    FT_TRACE5(( "\n" ));
+
+    af_glyph_hints_done( hints );
+  }
+
+
+  /* Find all blue zones. */
+
+  static void
+  af_cjk_metrics_init_blues( AF_CJKMetrics  metrics,
+                             FT_Face        face )
+  {
+    FT_Pos      fills[AF_BLUE_STRING_MAX_LEN];
+    FT_Pos      flats[AF_BLUE_STRING_MAX_LEN];
+
+    FT_Int      num_fills;
+    FT_Int      num_flats;
+
+    FT_Bool     fill;
+
+    AF_CJKBlue  blue;
+    FT_Error    error;
+    AF_CJKAxis  axis;
+    FT_Outline  outline;
+
+    AF_StyleClass  sc = metrics->root.style_class;
+
+    AF_Blue_Stringset         bss = sc->blue_stringset;
+    const AF_Blue_StringRec*  bs  = &af_blue_stringsets[bss];
+
+
+    /* we walk over the blue character strings as specified in the   */
+    /* style's entry in the `af_blue_stringset' array, computing its */
+    /* extremum points (depending on the string properties)          */
+
+    FT_TRACE5(( "cjk blue zones computation\n"
+                "==========================\n"
+                "\n" ));
+
+    for ( ; bs->string != AF_BLUE_STRING_MAX; bs++ )
+    {
+      const char*  p = &af_blue_strings[bs->string];
+      FT_Pos*      blue_ref;
+      FT_Pos*      blue_shoot;
+
+
+      if ( AF_CJK_IS_HORIZ_BLUE( bs ) )
+        axis = &metrics->axis[AF_DIMENSION_HORZ];
+      else
+        axis = &metrics->axis[AF_DIMENSION_VERT];
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+      {
+        FT_String*  cjk_blue_name[4] =
+        {
+          (FT_String*)"bottom",    /* --   , --  */
+          (FT_String*)"top",       /* --   , TOP */
+          (FT_String*)"left",      /* HORIZ, --  */
+          (FT_String*)"right"      /* HORIZ, TOP */
+        };
+
+
+        FT_TRACE5(( "blue zone %d (%s):\n",
+                    axis->blue_count,
+                    cjk_blue_name[AF_CJK_IS_HORIZ_BLUE( bs ) |
+                                  AF_CJK_IS_TOP_BLUE( bs )   ] ));
+      }
+#endif /* FT_DEBUG_LEVEL_TRACE */
+
+      num_fills = 0;
+      num_flats = 0;
+
+      fill = 1;  /* start with characters that define fill values */
+      FT_TRACE5(( "  [overshoot values]\n" ));
+
+      while ( *p )
+      {
+        FT_ULong    ch;
+        FT_ULong    glyph_index;
+        FT_Long     y_offset;
+        FT_Pos      best_pos;       /* same as points.y or points.x, resp. */
+        FT_Int      best_point;
+        FT_Vector*  points;
+
+
+        GET_UTF8_CHAR( ch, p );
+
+        /* switch to characters that define flat values */
+        if ( ch == '|' )
+        {
+          fill = 0;
+          FT_TRACE5(( "  [reference values]\n" ));
+          continue;
+        }
+
+        /* load the character in the face -- skip unknown or empty ones */
+        af_get_char_index( &metrics->root, ch, &glyph_index, &y_offset );
+        if ( glyph_index == 0 )
+        {
+          FT_TRACE5(( "  U+%04lX unavailable\n", ch ));
+          continue;
+        }
+
+        error   = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
+        outline = face->glyph->outline;
+        if ( error || outline.n_points <= 0 )
+        {
+          FT_TRACE5(( "  U+%04lX contains no outlines\n", ch ));
+          continue;
+        }
+
+        /* now compute min or max point indices and coordinates */
+        points     = outline.points;
+        best_point = -1;
+        best_pos   = 0;  /* make compiler happy */
+
+        {
+          FT_Int  nn;
+          FT_Int  first = 0;
+          FT_Int  last  = -1;
+
+
+          for ( nn = 0; nn < outline.n_contours; first = last + 1, nn++ )
+          {
+            FT_Int  pp;
+
+
+            last = outline.contours[nn];
+
+            /* Avoid single-point contours since they are never rasterized. */
+            /* In some fonts, they correspond to mark attachment points     */
+            /* which are way outside of the glyph's real outline.           */
+            if ( last <= first )
+              continue;
+
+            if ( AF_CJK_IS_HORIZ_BLUE( bs ) )
+            {
+              if ( AF_CJK_IS_RIGHT_BLUE( bs ) )
+              {
+                for ( pp = first; pp <= last; pp++ )
+                  if ( best_point < 0 || points[pp].x > best_pos )
+                  {
+                    best_point = pp;
+                    best_pos   = points[pp].x;
+                  }
+              }
+              else
+              {
+                for ( pp = first; pp <= last; pp++ )
+                  if ( best_point < 0 || points[pp].x < best_pos )
+                  {
+                    best_point = pp;
+                    best_pos   = points[pp].x;
+                  }
+              }
+            }
+            else
+            {
+              if ( AF_CJK_IS_TOP_BLUE( bs ) )
+              {
+                for ( pp = first; pp <= last; pp++ )
+                  if ( best_point < 0 || points[pp].y > best_pos )
+                  {
+                    best_point = pp;
+                    best_pos   = points[pp].y;
+                  }
+              }
+              else
+              {
+                for ( pp = first; pp <= last; pp++ )
+                  if ( best_point < 0 || points[pp].y < best_pos )
+                  {
+                    best_point = pp;
+                    best_pos   = points[pp].y;
+                  }
+              }
+            }
+          }
+
+          FT_TRACE5(( "  U+%04lX: best_pos = %5ld\n", ch, best_pos ));
+        }
+
+        if ( fill )
+          fills[num_fills++] = best_pos;
+        else
+          flats[num_flats++] = best_pos;
+      }
+
+      if ( num_flats == 0 && num_fills == 0 )
+      {
+        /*
+         *  we couldn't find a single glyph to compute this blue zone,
+         *  we will simply ignore it then
+         */
+        FT_TRACE5(( "  empty\n" ));
+        continue;
+      }
+
+      /* we have computed the contents of the `fill' and `flats' tables,   */
+      /* now determine the reference and overshoot position of the blue -- */
+      /* we simply take the median value after a simple sort               */
+      af_sort_pos( num_fills, fills );
+      af_sort_pos( num_flats, flats );
+
+      blue       = &axis->blues[axis->blue_count];
+      blue_ref   = &blue->ref.org;
+      blue_shoot = &blue->shoot.org;
+
+      axis->blue_count++;
+
+      if ( num_flats == 0 )
+      {
+        *blue_ref   =
+        *blue_shoot = fills[num_fills / 2];
+      }
+      else if ( num_fills == 0 )
+      {
+        *blue_ref   =
+        *blue_shoot = flats[num_flats / 2];
+      }
+      else
+      {
+        *blue_ref   = fills[num_fills / 2];
+        *blue_shoot = flats[num_flats / 2];
+      }
+
+      /* make sure blue_ref >= blue_shoot for top/right or */
+      /* vice versa for bottom/left                        */
+      if ( *blue_shoot != *blue_ref )
+      {
+        FT_Pos   ref       = *blue_ref;
+        FT_Pos   shoot     = *blue_shoot;
+        FT_Bool  under_ref = FT_BOOL( shoot < ref );
+
+
+        /* AF_CJK_IS_TOP_BLUE covers `right' and `top' */
+        if ( AF_CJK_IS_TOP_BLUE( bs ) ^ under_ref )
+        {
+          *blue_ref   =
+          *blue_shoot = ( shoot + ref ) / 2;
+
+          FT_TRACE5(( "  [reference smaller than overshoot,"
+                      " taking mean value]\n" ));
+        }
+      }
+
+      blue->flags = 0;
+      if ( AF_CJK_IS_TOP_BLUE( bs ) )
+        blue->flags |= AF_CJK_BLUE_TOP;
+
+      FT_TRACE5(( "    -> reference = %ld\n"
+                  "       overshoot = %ld\n",
+                  *blue_ref, *blue_shoot ));
+    }
+
+    FT_TRACE5(( "\n" ));
+
+    return;
+  }
+
+
+  /* Basically the Latin version with type AF_CJKMetrics for metrics. */
+
+  FT_LOCAL_DEF( void )
+  af_cjk_metrics_check_digits( AF_CJKMetrics  metrics,
+                               FT_Face        face )
+  {
+    FT_UInt   i;
+    FT_Bool   started = 0, same_width = 1;
+    FT_Fixed  advance, old_advance = 0;
+
+
+    /* digit `0' is 0x30 in all supported charmaps */
+    for ( i = 0x30; i <= 0x39; i++ )
+    {
+      FT_ULong  glyph_index;
+      FT_Long   y_offset;
+
+
+      af_get_char_index( &metrics->root, i, &glyph_index, &y_offset );
+      if ( glyph_index == 0 )
+        continue;
+
+      if ( FT_Get_Advance( face, glyph_index,
+                           FT_LOAD_NO_SCALE         |
+                           FT_LOAD_NO_HINTING       |
+                           FT_LOAD_IGNORE_TRANSFORM,
+                           &advance ) )
+        continue;
+
+      if ( started )
+      {
+        if ( advance != old_advance )
+        {
+          same_width = 0;
+          break;
+        }
+      }
+      else
+      {
+        old_advance = advance;
+        started     = 1;
+      }
+    }
+
+    metrics->root.digits_have_same_width = same_width;
+  }
+
+
+  /* Initialize global metrics. */
+
   FT_LOCAL_DEF( FT_Error )
-  af_cjk_metrics_init( AF_LatinMetrics  metrics,
-                       FT_Face          face )
+  af_cjk_metrics_init( AF_CJKMetrics  metrics,
+                       FT_Face        face )
   {
     FT_CharMap  oldmap = face->charmap;
 
 
     metrics->units_per_em = face->units_per_EM;
 
-    /* TODO are there blues? */
-
-    if ( FT_Select_Charmap( face, FT_ENCODING_UNICODE ) )
-      face->charmap = NULL;
-    else
+    if ( !FT_Select_Charmap( face, FT_ENCODING_UNICODE ) )
     {
-      /* latin's version would suffice */
-      af_latin_metrics_init_widths( metrics, face, 0x7530 );
-      af_latin_metrics_check_digits( metrics, face );
+      af_cjk_metrics_init_widths( metrics, face );
+      af_cjk_metrics_init_blues( metrics, face );
+      af_cjk_metrics_check_digits( metrics, face );
     }
 
     FT_Set_Charmap( face, oldmap );
-
-    return AF_Err_Ok;
+    return FT_Err_Ok;
   }
 
 
+  /* Adjust scaling value, then scale and shift widths   */
+  /* and blue zones (if applicable) for given dimension. */
+
   static void
-  af_cjk_metrics_scale_dim( AF_LatinMetrics  metrics,
-                            AF_Scaler        scaler,
-                            AF_Dimension     dim )
+  af_cjk_metrics_scale_dim( AF_CJKMetrics  metrics,
+                            AF_Scaler      scaler,
+                            AF_Dimension   dim )
   {
-    AF_LatinAxis  axis;
-
+    FT_Fixed    scale;
+    FT_Pos      delta;
+    AF_CJKAxis  axis;
+    FT_UInt     nn;
 
-    axis = &metrics->axis[dim];
 
     if ( dim == AF_DIMENSION_HORZ )
     {
-      axis->scale = scaler->x_scale;
-      axis->delta = scaler->x_delta;
+      scale = scaler->x_scale;
+      delta = scaler->x_delta;
     }
     else
     {
-      axis->scale = scaler->y_scale;
-      axis->delta = scaler->y_delta;
+      scale = scaler->y_scale;
+      delta = scaler->y_delta;
+    }
+
+    axis = &metrics->axis[dim];
+
+    if ( axis->org_scale == scale && axis->org_delta == delta )
+      return;
+
+    axis->org_scale = scale;
+    axis->org_delta = delta;
+
+    axis->scale = scale;
+    axis->delta = delta;
+
+    /* scale the blue zones */
+    for ( nn = 0; nn < axis->blue_count; nn++ )
+    {
+      AF_CJKBlue  blue = &axis->blues[nn];
+      FT_Pos      dist;
+
+
+      blue->ref.cur   = FT_MulFix( blue->ref.org, scale ) + delta;
+      blue->ref.fit   = blue->ref.cur;
+      blue->shoot.cur = FT_MulFix( blue->shoot.org, scale ) + delta;
+      blue->shoot.fit = blue->shoot.cur;
+      blue->flags    &= ~AF_CJK_BLUE_ACTIVE;
+
+      /* a blue zone is only active if it is less than 3/4 pixels tall */
+      dist = FT_MulFix( blue->ref.org - blue->shoot.org, scale );
+      if ( dist <= 48 && dist >= -48 )
+      {
+        FT_Pos  delta1, delta2;
+
+
+        blue->ref.fit  = FT_PIX_ROUND( blue->ref.cur );
+
+        /* shoot is under shoot for cjk */
+        delta1 = FT_DivFix( blue->ref.fit, scale ) - blue->shoot.org;
+        delta2 = delta1;
+        if ( delta1 < 0 )
+          delta2 = -delta2;
+
+        delta2 = FT_MulFix( delta2, scale );
+
+        FT_TRACE5(( "delta: %d", delta1 ));
+        if ( delta2 < 32 )
+          delta2 = 0;
+#if 0
+        else if ( delta2 < 64 )
+          delta2 = 32 + ( ( ( delta2 - 32 ) + 16 ) & ~31 );
+#endif
+        else
+          delta2 = FT_PIX_ROUND( delta2 );
+        FT_TRACE5(( "/%d\n", delta2 ));
+
+        if ( delta1 < 0 )
+          delta2 = -delta2;
+
+        blue->shoot.fit = blue->ref.fit - delta2;
+
+        FT_TRACE5(( ">> active cjk blue zone %c%d[%ld/%ld]:\n"
+                    "     ref:   cur=%.2f fit=%.2f\n"
+                    "     shoot: cur=%.2f fit=%.2f\n",
+                    ( dim == AF_DIMENSION_HORZ ) ? 'H' : 'V',
+                    nn, blue->ref.org, blue->shoot.org,
+                    blue->ref.cur / 64.0, blue->ref.fit / 64.0,
+                    blue->shoot.cur / 64.0, blue->shoot.fit / 64.0 ));
+
+        blue->flags |= AF_CJK_BLUE_ACTIVE;
+      }
     }
   }
 
 
+  /* Scale global values in both directions. */
+
   FT_LOCAL_DEF( void )
-  af_cjk_metrics_scale( AF_LatinMetrics  metrics,
-                        AF_Scaler        scaler )
+  af_cjk_metrics_scale( AF_CJKMetrics  metrics,
+                        AF_Scaler      scaler )
   {
+    /* we copy the whole structure since the x and y scaling values */
+    /* are not modified, contrary to e.g. the `latin' auto-hinter   */
     metrics->root.scaler = *scaler;
 
     af_cjk_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ );
@@ -113,6 +696,9 @@
   /*************************************************************************/
   /*************************************************************************/
 
+
+  /* Walk over all contours and compute its segments. */
+
   static FT_Error
   af_cjk_hints_compute_segments( AF_GlyphHints  hints,
                                  AF_Dimension   dim )
@@ -134,7 +720,7 @@
     {
       AF_Point  pt   = seg->first;
       AF_Point  last = seg->last;
-      AF_Flags  f0   = (AF_Flags)(pt->flags & AF_FLAG_CONTROL);
+      AF_Flags  f0   = (AF_Flags)( pt->flags & AF_FLAG_CONTROL );
       AF_Flags  f1;
 
 
@@ -143,7 +729,7 @@
       for ( ; pt != last; f0 = f1 )
       {
         pt = pt->next;
-        f1 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL);
+        f1 = (AF_Flags)( pt->flags & AF_FLAG_CONTROL );
 
         if ( !f0 && !f1 )
           break;
@@ -153,7 +739,7 @@
       }
     }
 
-    return AF_Err_Ok;
+    return FT_Err_Ok;
   }
 
 
@@ -179,10 +765,6 @@
     /* now compare each segment to the others */
     for ( seg1 = segments; seg1 < segment_limit; seg1++ )
     {
-      /* the fake segments are for metrics hinting only */
-      if ( seg1->first == seg1->last )
-        continue;
-
       if ( seg1->dir != major_dir )
         continue;
 
@@ -327,9 +909,9 @@
                               AF_Dimension   dim )
   {
     AF_AxisHints  axis   = &hints->axis[dim];
-    FT_Error      error  = AF_Err_Ok;
+    FT_Error      error  = FT_Err_Ok;
     FT_Memory     memory = hints->memory;
-    AF_LatinAxis  laxis  = &((AF_LatinMetrics)hints->metrics)->axis[dim];
+    AF_CJKAxis    laxis  = &((AF_CJKMetrics)hints->metrics)->axis[dim];
 
     AF_Segment    segments      = axis->segments;
     AF_Segment    segment_limit = segments + axis->num_segments;
@@ -369,7 +951,7 @@
 
     for ( seg = segments; seg < segment_limit; seg++ )
     {
-      AF_Edge  found = 0;
+      AF_Edge  found = NULL;
       FT_Pos   best  = 0xFFFFU;
       FT_Int   ee;
 
@@ -397,14 +979,15 @@
           /* can make a single edge.                                 */
           if ( link )
           {
-            AF_Segment  seg1 = edge->first;
-            AF_Segment  link1;
+            AF_Segment  seg1  = edge->first;
             FT_Pos      dist2 = 0;
 
 
             do
             {
-              link1 = seg1->link;
+              AF_Segment  link1 = seg1->link;
+
+
               if ( link1 )
               {
                 dist2 = AF_SEGMENT_DIST( link, link1 );
@@ -441,10 +1024,11 @@
 
         edge->first    = seg;
         edge->last     = seg;
+        edge->dir      = seg->dir;
         edge->fpos     = seg->pos;
-        edge->opos     = edge->pos = FT_MulFix( seg->pos, scale );
+        edge->opos     = FT_MulFix( seg->pos, scale );
+        edge->pos      = edge->opos;
         seg->edge_next = seg;
-        edge->dir      = seg->dir;
       }
       else
       {
@@ -456,25 +1040,26 @@
       }
     }
 
-    /*********************************************************************/
-    /*                                                                   */
-    /* Good, we now compute each edge's properties according to segments */
-    /* found on its position.  Basically, these are as follows.          */
-    /*                                                                   */
-    /*  - edge's main direction                                          */
-    /*  - stem edge, serif edge or both (which defaults to stem then)    */
-    /*  - rounded edge, straight or both (which defaults to straight)    */
-    /*  - link for edge                                                  */
-    /*                                                                   */
-    /*********************************************************************/
-
-    /* first of all, set the `edge' field in each segment -- this is     */
-    /* required in order to compute edge links                           */
-    /*                                                                   */
-    /* Note that removing this loop and setting the `edge' field of each */
-    /* segment directly in the code above slows down execution speed for */
-    /* some reasons on platforms like the Sun.                           */
+    /******************************************************************/
+    /*                                                                */
+    /* Good, we now compute each edge's properties according to the   */
+    /* segments found on its position.  Basically, these are          */
+    /*                                                                */
+    /*  - the edge's main direction                                   */
+    /*  - stem edge, serif edge or both (which defaults to stem then) */
+    /*  - rounded edge, straight or both (which defaults to straight) */
+    /*  - link for edge                                               */
+    /*                                                                */
+    /******************************************************************/
+
+    /* first of all, set the `edge' field in each segment -- this is */
+    /* required in order to compute edge links                       */
 
+    /*
+     * Note that removing this loop and setting the `edge' field of each
+     * segment directly in the code above slows down execution speed for
+     * some reasons on platforms like the Sun.
+     */
     {
       AF_Edge  edges      = axis->edges;
       AF_Edge  edge_limit = edges + axis->num_edges;
@@ -583,6 +1168,8 @@
   }
 
 
+  /* Detect segments and edges for given dimension. */
+
   static FT_Error
   af_cjk_hints_detect_features( AF_GlyphHints  hints,
                                 AF_Dimension   dim )
@@ -601,15 +1188,106 @@
   }
 
 
+  /* Compute all edges which lie within blue zones. */
+
+  FT_LOCAL_DEF( void )
+  af_cjk_hints_compute_blue_edges( AF_GlyphHints  hints,
+                                   AF_CJKMetrics  metrics,
+                                   AF_Dimension   dim )
+  {
+    AF_AxisHints  axis       = &hints->axis[dim];
+    AF_Edge       edge       = axis->edges;
+    AF_Edge       edge_limit = edge + axis->num_edges;
+    AF_CJKAxis    cjk        = &metrics->axis[dim];
+    FT_Fixed      scale      = cjk->scale;
+    FT_Pos        best_dist0;  /* initial threshold */
+
+
+    /* compute the initial threshold as a fraction of the EM size */
+    best_dist0 = FT_MulFix( metrics->units_per_em / 40, scale );
+
+    if ( best_dist0 > 64 / 2 ) /* maximum 1/2 pixel */
+      best_dist0 = 64 / 2;
+
+    /* compute which blue zones are active, i.e. have their scaled */
+    /* size < 3/4 pixels                                           */
+
+    /* If the distant between an edge and a blue zone is shorter than */
+    /* best_dist0, set the blue zone for the edge.  Then search for   */
+    /* the blue zone with the smallest best_dist to the edge.         */
+
+    for ( ; edge < edge_limit; edge++ )
+    {
+      FT_UInt   bb;
+      AF_Width  best_blue = NULL;
+      FT_Pos    best_dist = best_dist0;
+
+
+      for ( bb = 0; bb < cjk->blue_count; bb++ )
+      {
+        AF_CJKBlue  blue = cjk->blues + bb;
+        FT_Bool     is_top_right_blue, is_major_dir;
+
+
+        /* skip inactive blue zones (i.e., those that are too small) */
+        if ( !( blue->flags & AF_CJK_BLUE_ACTIVE ) )
+          continue;
+
+        /* if it is a top zone, check for right edges -- if it is a bottom */
+        /* zone, check for left edges                                      */
+        /*                                                                 */
+        /* of course, that's for TrueType                                  */
+        is_top_right_blue =
+          (FT_Byte)( ( blue->flags & AF_CJK_BLUE_TOP ) != 0 );
+        is_major_dir =
+          FT_BOOL( edge->dir == axis->major_dir );
+
+        /* if it is a top zone, the edge must be against the major    */
+        /* direction; if it is a bottom zone, it must be in the major */
+        /* direction                                                  */
+        if ( is_top_right_blue ^ is_major_dir )
+        {
+          FT_Pos    dist;
+          AF_Width  compare;
+
+
+          /* Compare the edge to the closest blue zone type */
+          if ( FT_ABS( edge->fpos - blue->ref.org ) >
+               FT_ABS( edge->fpos - blue->shoot.org ) )
+            compare = &blue->shoot;
+          else
+            compare = &blue->ref;
+
+          dist = edge->fpos - compare->org;
+          if ( dist < 0 )
+            dist = -dist;
+
+          dist = FT_MulFix( dist, scale );
+          if ( dist < best_dist )
+          {
+            best_dist = dist;
+            best_blue = compare;
+          }
+        }
+      }
+
+      if ( best_blue )
+        edge->blue_edge = best_blue;
+    }
+  }
+
+
+  /* Initalize hinting engine. */
+
   FT_LOCAL_DEF( FT_Error )
-  af_cjk_hints_init( AF_GlyphHints    hints,
-                     AF_LatinMetrics  metrics )
+  af_cjk_hints_init( AF_GlyphHints  hints,
+                     AF_CJKMetrics  metrics )
   {
     FT_Render_Mode  mode;
     FT_UInt32       scaler_flags, other_flags;
 
 
-    af_glyph_hints_rescale( hints, (AF_ScriptMetrics)metrics );
+    af_glyph_hints_rescale( hints, (AF_StyleMetrics)metrics );
 
     /*
      *  correct x_scale and y_scale when needed, since they may have
@@ -623,7 +1301,7 @@
     /* compute flags depending on render mode, etc. */
     mode = metrics->root.scaler.render_mode;
 
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
     if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V )
       metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL;
 #endif
@@ -659,7 +1337,7 @@
     hints->scaler_flags = scaler_flags;
     hints->other_flags  = other_flags;
 
-    return 0;
+    return FT_Err_Ok;
   }
 
 
@@ -671,8 +1349,8 @@
   /*************************************************************************/
   /*************************************************************************/
 
-  /* snap a given width in scaled coordinates to one of the */
-  /* current standard widths                                */
+  /* Snap a given width in scaled coordinates to one of the */
+  /* current standard widths.                               */
 
   static FT_Pos
   af_cjk_snap_width( AF_Width  widths,
@@ -719,7 +1397,9 @@
   }
 
 
-  /* compute the snapped width of a given stem */
+  /* Compute the snapped width of a given stem.                          */
+  /* There is a lot of voodoo in this function; changing the hard-coded  */
+  /* parameters influence the whole hinting process.                     */
 
   static FT_Pos
   af_cjk_compute_stem_width( AF_GlyphHints  hints,
@@ -728,11 +1408,11 @@
                              AF_Edge_Flags  base_flags,
                              AF_Edge_Flags  stem_flags )
   {
-    AF_LatinMetrics  metrics  = (AF_LatinMetrics) hints->metrics;
-    AF_LatinAxis     axis     = & metrics->axis[dim];
-    FT_Pos           dist     = width;
-    FT_Int           sign     = 0;
-    FT_Int           vertical = ( dim == AF_DIMENSION_VERT );
+    AF_CJKMetrics  metrics  = (AF_CJKMetrics)hints->metrics;
+    AF_CJKAxis     axis     = &metrics->axis[dim];
+    FT_Pos         dist     = width;
+    FT_Int         sign     = 0;
+    FT_Bool        vertical = FT_BOOL( dim == AF_DIMENSION_VERT );
 
     FT_UNUSED( base_flags );
     FT_UNUSED( stem_flags );
@@ -840,7 +1520,7 @@
   }
 
 
-  /* align one stem edge relative to the previous stem edge */
+  /* Align one stem edge relative to the previous stem edge. */
 
   static void
   af_cjk_align_linked_edge( AF_GlyphHints  hints,
@@ -857,9 +1537,18 @@
 
 
     stem_edge->pos = base_edge->pos + fitted_width;
+
+    FT_TRACE5(( "  CJKLINK: edge %d @%d (opos=%.2f) linked to %.2f,"
+                " dist was %.2f, now %.2f\n",
+                stem_edge - hints->axis[dim].edges, stem_edge->fpos,
+                stem_edge->opos / 64.0, stem_edge->pos / 64.0,
+                dist / 64.0, fitted_width / 64.0 ));
   }
 
 
+  /* Shift the coordinates of the `serif' edge by the same amount */
+  /* as the corresponding `base' edge has been moved already.     */
+
   static void
   af_cjk_align_serif_edge( AF_GlyphHints  hints,
                            AF_Edge        base,
@@ -958,7 +1647,7 @@
         goto Exit;
     }
 
-    offset = cur_len % 64;
+    offset = cur_len & 63;
 
     if ( offset < 32 )
     {
@@ -1013,6 +1702,8 @@
   }
 
 
+  /* The main grid-fitting routine. */
+
   static void
   af_cjk_hint_edges( AF_GlyphHints  hints,
                      AF_Dimension   dim )
@@ -1025,7 +1716,75 @@
     AF_Edge       anchor   = 0;
     FT_Pos        delta    = 0;
     FT_Int        skipped  = 0;
+    FT_Bool       has_last_stem = FALSE;
+    FT_Pos        last_stem_pos = 0;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+    FT_UInt       num_actions = 0;
+#endif
+
+
+    FT_TRACE5(( "cjk %s edge hinting (style `%s')\n",
+                dim == AF_DIMENSION_VERT ? "horizontal" : "vertical",
+                af_style_names[hints->metrics->style_class->style] ));
+
+    /* we begin by aligning all stems relative to the blue zone */
+
+    if ( AF_HINTS_DO_BLUES( hints ) )
+    {
+      for ( edge = edges; edge < edge_limit; edge++ )
+      {
+        AF_Width  blue;
+        AF_Edge   edge1, edge2;
+
+
+        if ( edge->flags & AF_EDGE_DONE )
+          continue;
+
+        blue  = edge->blue_edge;
+        edge1 = NULL;
+        edge2 = edge->link;
+
+        if ( blue )
+        {
+          edge1 = edge;
+        }
+        else if ( edge2 && edge2->blue_edge )
+        {
+          blue  = edge2->blue_edge;
+          edge1 = edge2;
+          edge2 = edge;
+        }
+
+        if ( !edge1 )
+          continue;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+        FT_TRACE5(( "  CJKBLUE: edge %d @%d (opos=%.2f) snapped to %.2f,"
+                    " was %.2f\n",
+                    edge1 - edges, edge1->fpos, edge1->opos / 64.0,
+                    blue->fit / 64.0, edge1->pos / 64.0 ));
+
+        num_actions++;
+#endif
+
+        edge1->pos    = blue->fit;
+        edge1->flags |= AF_EDGE_DONE;
+
+        if ( edge2 && !edge2->blue_edge )
+        {
+          af_cjk_align_linked_edge( hints, dim, edge1, edge2 );
+          edge2->flags |= AF_EDGE_DONE;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+          num_actions++;
+#endif
+        }
 
+        if ( !anchor )
+          anchor = edge;
+      }
+    }
 
     /* now we align all stem edges. */
     for ( edge = edges; edge < edge_limit; edge++ )
@@ -1044,12 +1803,54 @@
         continue;
       }
 
+      /* Some CJK characters have so many stems that
+       * the hinter is likely to merge two adjacent ones.
+       * To solve this problem, if either edge of a stem
+       * is too close to the previous one, we avoid
+       * aligning the two edges, but rather interpolate
+       * their locations at the end of this function in
+       * order to preserve the space between the stems.
+       */
+      if ( has_last_stem                       &&
+           ( edge->pos  < last_stem_pos + 64 ||
+             edge2->pos < last_stem_pos + 64 ) )
+      {
+        skipped++;
+        continue;
+      }
+
       /* now align the stem */
 
+      /* this should not happen, but it's better to be safe */
+      if ( edge2->blue_edge )
+      {
+        FT_TRACE5(( "ASSERTION FAILED for edge %d\n", edge2-edges ));
+
+        af_cjk_align_linked_edge( hints, dim, edge2, edge );
+        edge->flags |= AF_EDGE_DONE;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+        num_actions++;
+#endif
+
+        continue;
+      }
+
       if ( edge2 < edge )
       {
         af_cjk_align_linked_edge( hints, dim, edge2, edge );
         edge->flags |= AF_EDGE_DONE;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+        num_actions++;
+#endif
+
+        /* We rarely reaches here it seems;
+         * usually the two edges belonging
+         * to one stem are marked as DONE together
+         */
+        has_last_stem = TRUE;
+        last_stem_pos = edge->pos;
         continue;
       }
 
@@ -1142,6 +1943,8 @@
       anchor = edge;
       edge->flags  |= AF_EDGE_DONE;
       edge2->flags |= AF_EDGE_DONE;
+      has_last_stem = TRUE;
+      last_stem_pos = edge2->pos;
     }
 
     /* make sure that lowercase m's maintain their symmetry */
@@ -1209,7 +2012,7 @@
     }
 
     if ( !skipped )
-      return;
+      goto Exit;
 
     /*
      *  now hint the remaining edges (serifs and single) in order
@@ -1229,7 +2032,7 @@
     }
 
     if ( !skipped )
-      return;
+      goto Exit;
 
     for ( edge = edges; edge < edge_limit; edge++ )
     {
@@ -1267,6 +2070,16 @@
         }
       }
     }
+
+  Exit:
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+    if ( !num_actions )
+      FT_TRACE5(( "  (none)\n" ));
+    FT_TRACE5(( "\n" ));
+#endif
+
+    return;
   }
 
 
@@ -1360,10 +2173,12 @@
   }
 
 
+  /* Apply the complete hinting algorithm to a CJK glyph. */
+
   FT_LOCAL_DEF( FT_Error )
-  af_cjk_hints_apply( AF_GlyphHints    hints,
-                      FT_Outline*      outline,
-                      AF_LatinMetrics  metrics )
+  af_cjk_hints_apply( AF_GlyphHints  hints,
+                      FT_Outline*    outline,
+                      AF_CJKMetrics  metrics )
   {
     FT_Error  error;
     int       dim;
@@ -1371,7 +2186,7 @@
     FT_UNUSED( metrics );
 
 
-    error = af_glyph_hints_reload( hints, outline, 0 );
+    error = af_glyph_hints_reload( hints, outline );
     if ( error )
       goto Exit;
 
@@ -1381,6 +2196,8 @@
       error = af_cjk_hints_detect_features( hints, AF_DIMENSION_HORZ );
       if ( error )
         goto Exit;
+
+      af_cjk_hints_compute_blue_edges( hints, metrics, AF_DIMENSION_HORZ );
     }
 
     if ( AF_HINTS_DO_VERTICAL( hints ) )
@@ -1388,6 +2205,8 @@
       error = af_cjk_hints_detect_features( hints, AF_DIMENSION_VERT );
       if ( error )
         goto Exit;
+
+      af_cjk_hints_compute_blue_edges( hints, metrics, AF_DIMENSION_VERT );
     }
 
     /* grid-fit the outline */
@@ -1397,7 +2216,7 @@
            ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) )   )
       {
 
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
         if ( dim == AF_DIMENSION_HORZ                                  &&
              metrics->root.scaler.render_mode == FT_RENDER_MODE_NORMAL )
         {
@@ -1406,11 +2225,13 @@
           FT_Pos        delta;
 
 
-          af_warper_compute( &warper, hints, dim, &scale, &delta );
-          af_glyph_hints_scale_dim( hints, dim, scale, delta );
+          af_warper_compute( &warper, hints, (AF_Dimension)dim,
+                             &scale, &delta );
+          af_glyph_hints_scale_dim( hints, (AF_Dimension)dim,
+                                    scale, delta );
           continue;
         }
-#endif /* AF_USE_WARPER */
+#endif /* AF_CONFIG_OPTION_USE_WARPER */
 
         af_cjk_hint_edges( hints, (AF_Dimension)dim );
         af_cjk_align_edge_points( hints, (AF_Dimension)dim );
@@ -1441,71 +2262,41 @@
   /*************************************************************************/
 
 
-  static const AF_Script_UniRangeRec  af_cjk_uniranges[] =
-  {
-#if 0
-    AF_UNIRANGE_REC(  0x0100UL,  0xFFFFUL ),  /* why this? */
-#endif
-    AF_UNIRANGE_REC(  0x2E80UL,  0x2EFFUL ),  /* CJK Radicals Supplement                 */
-    AF_UNIRANGE_REC(  0x2F00UL,  0x2FDFUL ),  /* Kangxi Radicals                         */
-    AF_UNIRANGE_REC(  0x3000UL,  0x303FUL ),  /* CJK Symbols and Punctuation             */
-    AF_UNIRANGE_REC(  0x3040UL,  0x309FUL ),  /* Hiragana                                */
-    AF_UNIRANGE_REC(  0x30A0UL,  0x30FFUL ),  /* Katakana                                */
-    AF_UNIRANGE_REC(  0x3100UL,  0x312FUL ),  /* Bopomofo                                */
-    AF_UNIRANGE_REC(  0x3130UL,  0x318FUL ),  /* Hangul Compatibility Jamo               */
-    AF_UNIRANGE_REC(  0x31A0UL,  0x31BFUL ),  /* Bopomofo Extended                       */
-    AF_UNIRANGE_REC(  0x31C0UL,  0x31EFUL ),  /* CJK Strokes                             */
-    AF_UNIRANGE_REC(  0x31F0UL,  0x31FFUL ),  /* Katakana Phonetic Extensions            */
-    AF_UNIRANGE_REC(  0x3200UL,  0x32FFUL ),  /* Enclosed CJK Letters and Months         */
-    AF_UNIRANGE_REC(  0x3300UL,  0x33FFUL ),  /* CJK Compatibility                       */
-    AF_UNIRANGE_REC(  0x3400UL,  0x4DBFUL ),  /* CJK Unified Ideographs Extension A      */
-    AF_UNIRANGE_REC(  0x4DC0UL,  0x4DFFUL ),  /* Yijing Hexagram Symbols                 */
-    AF_UNIRANGE_REC(  0x4E00UL,  0x9FFFUL ),  /* CJK Unified Ideographs                  */
-    AF_UNIRANGE_REC(  0xF900UL,  0xFAFFUL ),  /* CJK Compatibility Ideographs            */
-    AF_UNIRANGE_REC(  0xFE30UL,  0xFE4FUL ),  /* CJK Compatibility Forms                 */
-    AF_UNIRANGE_REC(  0xFF00UL,  0xFFEFUL ),  /* Halfwidth and Fullwidth Forms           */
-    AF_UNIRANGE_REC( 0x20000UL, 0x2A6DFUL ),  /* CJK Unified Ideographs Extension B      */
-    AF_UNIRANGE_REC( 0x2F800UL, 0x2FA1FUL ),  /* CJK Compatibility Ideographs Supplement */
-    AF_UNIRANGE_REC(       0UL,       0UL )
-  };
-
-
-  AF_DEFINE_SCRIPT_CLASS(af_cjk_script_class,
-    AF_SCRIPT_CJK,
-    af_cjk_uniranges,
-
-    sizeof( AF_LatinMetricsRec ),
-
-    (AF_Script_InitMetricsFunc) af_cjk_metrics_init,
-    (AF_Script_ScaleMetricsFunc)af_cjk_metrics_scale,
-    (AF_Script_DoneMetricsFunc) NULL,
-
-    (AF_Script_InitHintsFunc)   af_cjk_hints_init,
-    (AF_Script_ApplyHintsFunc)  af_cjk_hints_apply
+  AF_DEFINE_WRITING_SYSTEM_CLASS(
+    af_cjk_writing_system_class,
+
+    AF_WRITING_SYSTEM_CJK,
+
+    sizeof ( AF_CJKMetricsRec ),
+
+    (AF_WritingSystem_InitMetricsFunc) af_cjk_metrics_init,
+    (AF_WritingSystem_ScaleMetricsFunc)af_cjk_metrics_scale,
+    (AF_WritingSystem_DoneMetricsFunc) NULL,
+
+    (AF_WritingSystem_InitHintsFunc)   af_cjk_hints_init,
+    (AF_WritingSystem_ApplyHintsFunc)  af_cjk_hints_apply
   )
 
+
 #else /* !AF_CONFIG_OPTION_CJK */
 
-  static const AF_Script_UniRangeRec  af_cjk_uniranges[] =
-  {
-    AF_UNIRANGE_REC( 0UL, 0UL )
-  };
 
+  AF_DEFINE_WRITING_SYSTEM_CLASS(
+    af_cjk_writing_system_class,
 
-  AF_DEFINE_SCRIPT_CLASS(af_cjk_script_class,
-    AF_SCRIPT_CJK,
-    af_cjk_uniranges,
+    AF_WRITING_SYSTEM_CJK,
 
-    sizeof( AF_LatinMetricsRec ),
+    sizeof ( AF_CJKMetricsRec ),
 
-    (AF_Script_InitMetricsFunc) NULL,
-    (AF_Script_ScaleMetricsFunc)NULL,
-    (AF_Script_DoneMetricsFunc) NULL,
+    (AF_WritingSystem_InitMetricsFunc) NULL,
+    (AF_WritingSystem_ScaleMetricsFunc)NULL,
+    (AF_WritingSystem_DoneMetricsFunc) NULL,
 
-    (AF_Script_InitHintsFunc)   NULL,
-    (AF_Script_ApplyHintsFunc)  NULL
+    (AF_WritingSystem_InitHintsFunc)   NULL,
+    (AF_WritingSystem_ApplyHintsFunc)  NULL
   )
 
+
 #endif /* !AF_CONFIG_OPTION_CJK */
 
 
diff --git a/src/3rdparty/freetype/src/autofit/afcjk.h b/src/3rdparty/freetype/src/autofit/afcjk.h
index 0b20d4ae35..4dd4f39177 100644
--- a/src/3rdparty/freetype/src/autofit/afcjk.h
+++ b/src/3rdparty/freetype/src/autofit/afcjk.h
@@ -2,9 +2,9 @@
 /*                                                                         */
 /*  afcjk.h                                                                */
 /*                                                                         */
-/*    Auto-fitter hinting routines for CJK script (specification).         */
+/*    Auto-fitter hinting routines for CJK writing system (specification). */
 /*                                                                         */
-/*  Copyright 2006, 2007 by                                                */
+/*  Copyright 2006, 2007, 2011-2014 by                                     */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -20,32 +20,119 @@
 #define __AFCJK_H__
 
 #include "afhints.h"
+#include "aflatin.h"
 
 
 FT_BEGIN_HEADER
 
 
-  /* the CJK-specific script class */
+  /* the CJK-specific writing system */
 
-  AF_DECLARE_SCRIPT_CLASS(af_cjk_script_class)
+  AF_DECLARE_WRITING_SYSTEM_CLASS( af_cjk_writing_system_class )
 
 
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****              C J K   G L O B A L   M E T R I C S              *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+
+  /*
+   *  CJK glyphs tend to fill the square.  So we have both vertical and
+   *  horizontal blue zones.  But some glyphs have flat bounding strokes that
+   *  leave some space between neighbour glyphs.
+   */
+
+#define AF_CJK_IS_TOP_BLUE( b ) \
+          ( (b)->properties & AF_BLUE_PROPERTY_CJK_TOP )
+#define AF_CJK_IS_HORIZ_BLUE( b ) \
+          ( (b)->properties & AF_BLUE_PROPERTY_CJK_HORIZ )
+#define AF_CJK_IS_RIGHT_BLUE  AF_CJK_IS_TOP_BLUE
+
+#define AF_CJK_MAX_WIDTHS  16
+
+
+  enum
+  {
+    AF_CJK_BLUE_ACTIVE     = 1 << 0,  /* set if zone height is <= 3/4px */
+    AF_CJK_BLUE_TOP        = 1 << 1,  /* result of AF_CJK_IS_TOP_BLUE   */
+    AF_CJK_BLUE_ADJUSTMENT = 1 << 2,  /* used for scale adjustment      */
+                                      /* optimization                   */
+    AF_CJK_BLUE_FLAG_MAX
+  };
+
+
+  typedef struct  AF_CJKBlueRec_
+  {
+    AF_WidthRec  ref;
+    AF_WidthRec  shoot; /* undershoot */
+    FT_UInt      flags;
+
+  } AF_CJKBlueRec, *AF_CJKBlue;
+
+
+  typedef struct  AF_CJKAxisRec_
+  {
+    FT_Fixed       scale;
+    FT_Pos         delta;
+
+    FT_UInt        width_count;                   /* number of used widths */
+    AF_WidthRec    widths[AF_CJK_MAX_WIDTHS];     /* widths array          */
+    FT_Pos         edge_distance_threshold;     /* used for creating edges */
+    FT_Pos         standard_width;           /* the default stem thickness */
+    FT_Bool        extra_light;           /* is standard width very light? */
+
+    /* used for horizontal metrics too for CJK */
+    FT_Bool        control_overshoot;
+    FT_UInt        blue_count;
+    AF_CJKBlueRec  blues[AF_BLUE_STRINGSET_MAX];
+
+    FT_Fixed       org_scale;
+    FT_Pos         org_delta;
+
+  } AF_CJKAxisRec, *AF_CJKAxis;
+
+
+  typedef struct  AF_CJKMetricsRec_
+  {
+    AF_StyleMetricsRec  root;
+    FT_UInt             units_per_em;
+    AF_CJKAxisRec       axis[AF_DIMENSION_MAX];
+
+  } AF_CJKMetricsRec, *AF_CJKMetrics;
+
+
+#ifdef AF_CONFIG_OPTION_CJK
   FT_LOCAL( FT_Error )
-  af_cjk_metrics_init( AF_LatinMetrics  metrics,
-                       FT_Face          face );
+  af_cjk_metrics_init( AF_CJKMetrics  metrics,
+                       FT_Face        face );
 
   FT_LOCAL( void )
-  af_cjk_metrics_scale( AF_LatinMetrics  metrics,
-                        AF_Scaler        scaler );
+  af_cjk_metrics_scale( AF_CJKMetrics  metrics,
+                        AF_Scaler      scaler );
 
   FT_LOCAL( FT_Error )
-  af_cjk_hints_init( AF_GlyphHints    hints,
-                     AF_LatinMetrics  metrics );
+  af_cjk_hints_init( AF_GlyphHints  hints,
+                     AF_CJKMetrics  metrics );
 
   FT_LOCAL( FT_Error )
-  af_cjk_hints_apply( AF_GlyphHints    hints,
-                      FT_Outline*      outline,
-                      AF_LatinMetrics  metrics );
+  af_cjk_hints_apply( AF_GlyphHints  hints,
+                      FT_Outline*    outline,
+                      AF_CJKMetrics  metrics );
+
+  /* shared; called from afindic.c */
+  FT_LOCAL( void )
+  af_cjk_metrics_check_digits( AF_CJKMetrics  metrics,
+                               FT_Face        face );
+
+  FT_LOCAL( void )
+  af_cjk_metrics_init_widths( AF_CJKMetrics  metrics,
+                              FT_Face        face );
+#endif /* AF_CONFIG_OPTION_CJK */
+
 
 /* */
 
diff --git a/src/3rdparty/freetype/src/autofit/afcover.h b/src/3rdparty/freetype/src/autofit/afcover.h
new file mode 100644
index 0000000000..d5ac96944a
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afcover.h
@@ -0,0 +1,105 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afcover.h                                                              */
+/*                                                                         */
+/*    Auto-fitter coverages (specification only).                          */
+/*                                                                         */
+/*  Copyright 2013, 2014 by                                                */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+  /* This header file can be included multiple times. */
+  /* Define `COVERAGE' as needed.                     */
+
+
+  /* Add new coverages here.  The first and second arguments are the   */
+  /* coverage name in lowercase and uppercase, respectively, followed  */
+  /* by a description string.  The last four arguments are the four    */
+  /* characters defining the corresponding OpenType feature.           */
+
+#if 0
+  /* XXX: It's not possible to define blue zone characters in advance. */
+  COVERAGE( alternative_fractions, ALTERNATIVE_FRACTIONS,
+            "alternative fractions",
+            'a', 'f', 'r', 'c' )
+#endif
+
+  COVERAGE( petite_capitals_from_capitals, PETITE_CAPITALS_FROM_CAPITALS,
+            "petite capitals from capitals",
+            'c', '2', 'c', 'p' )
+
+  COVERAGE( small_capitals_from_capitals, SMALL_CAPITALS_FROM_CAPITALS,
+            "small capitals from capitals",
+            'c', '2', 's', 'c' )
+
+#if 0
+  /* XXX: Only digits are in this coverage, however, both normal style */
+  /*      and oldstyle representation forms are possible.              */
+  COVERAGE( denominators, DENOMINATORS,
+            "denominators",
+            'd', 'n', 'o', 'm' )
+#endif
+
+#if 0
+  /* XXX: It's not possible to define blue zone characters in advance. */
+  COVERAGE( fractions, FRACTIONS,
+            "fractions",
+            'f', 'r', 'a', 'c' )
+#endif
+
+#if 0
+  /* XXX: Only digits are in this coverage, however, both normal style */
+  /*      and oldstyle representation forms are possible.              */
+  COVERAGE( numerators, NUMERATORS,
+            "numerators",
+            'n', 'u', 'm', 'r' )
+#endif
+
+  COVERAGE( ordinals, ORDINALS,
+            "ordinals",
+            'o', 'r', 'd', 'n' )
+
+  COVERAGE( petite_capitals, PETITE_CAPITALS,
+            "petite capitals",
+            'p', 'c', 'a', 'p' )
+
+  COVERAGE( ruby, RUBY,
+            "ruby",
+            'r', 'u', 'b', 'y' )
+
+  COVERAGE( scientific_inferiors, SCIENTIFIC_INFERIORS,
+            "scientific inferiors",
+            's', 'i', 'n', 'f' )
+
+  COVERAGE( small_capitals, SMALL_CAPITALS,
+            "small capitals",
+            's', 'm', 'c', 'p' )
+
+  COVERAGE( subscript, SUBSCRIPT,
+            "subscript",
+            's', 'u', 'b', 's' )
+
+  COVERAGE( superscript, SUPERSCRIPT,
+            "superscript",
+            's', 'u', 'p', 's' )
+
+  COVERAGE( titling, TITLING,
+            "titling",
+            't', 'i', 't', 'l' )
+
+#if 0
+  /* to be always excluded */
+  COVERAGE(nalt, 'n', 'a', 'l', 't'); /* Alternate Annotation Forms (?) */
+  COVERAGE(ornm, 'o', 'r', 'n', 'm'); /* Ornaments (?) */
+#endif
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afdummy.c b/src/3rdparty/freetype/src/autofit/afdummy.c
index 42b2fcb216..f8702a109e 100644
--- a/src/3rdparty/freetype/src/autofit/afdummy.c
+++ b/src/3rdparty/freetype/src/autofit/afdummy.c
@@ -5,7 +5,7 @@
 /*    Auto-fitter dummy routines to be used if no hinting should be        */
 /*    performed (body).                                                    */
 /*                                                                         */
-/*  Copyright 2003, 2004, 2005 by                                          */
+/*  Copyright 2003-2005, 2011, 2013 by                                     */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -19,15 +19,21 @@
 
 #include "afdummy.h"
 #include "afhints.h"
+#include "aferrors.h"
 
 
   static FT_Error
-  af_dummy_hints_init( AF_GlyphHints     hints,
-                       AF_ScriptMetrics  metrics )
+  af_dummy_hints_init( AF_GlyphHints    hints,
+                       AF_StyleMetrics  metrics )
   {
-    af_glyph_hints_rescale( hints,
-                            metrics );
-    return 0;
+    af_glyph_hints_rescale( hints, metrics );
+
+    hints->x_scale = metrics->scaler.x_scale;
+    hints->y_scale = metrics->scaler.y_scale;
+    hints->x_delta = metrics->scaler.x_delta;
+    hints->y_delta = metrics->scaler.y_delta;
+
+    return FT_Err_Ok;
   }
 
 
@@ -35,25 +41,30 @@
   af_dummy_hints_apply( AF_GlyphHints  hints,
                         FT_Outline*    outline )
   {
-    FT_UNUSED( hints );
-    FT_UNUSED( outline );
+    FT_Error  error;
+
 
-    return 0;
+    error = af_glyph_hints_reload( hints, outline );
+    if ( !error )
+      af_glyph_hints_save( hints, outline );
+
+    return error;
   }
 
 
-  AF_DEFINE_SCRIPT_CLASS(af_dummy_script_class,
-    AF_SCRIPT_NONE,
-    NULL,
+  AF_DEFINE_WRITING_SYSTEM_CLASS(
+    af_dummy_writing_system_class,
+
+    AF_WRITING_SYSTEM_DUMMY,
 
-    sizeof( AF_ScriptMetricsRec ),
+    sizeof ( AF_StyleMetricsRec ),
 
-    (AF_Script_InitMetricsFunc) NULL,
-    (AF_Script_ScaleMetricsFunc)NULL,
-    (AF_Script_DoneMetricsFunc) NULL,
+    (AF_WritingSystem_InitMetricsFunc) NULL,
+    (AF_WritingSystem_ScaleMetricsFunc)NULL,
+    (AF_WritingSystem_DoneMetricsFunc) NULL,
 
-    (AF_Script_InitHintsFunc)   af_dummy_hints_init,
-    (AF_Script_ApplyHintsFunc)  af_dummy_hints_apply
+    (AF_WritingSystem_InitHintsFunc)   af_dummy_hints_init,
+    (AF_WritingSystem_ApplyHintsFunc)  af_dummy_hints_apply
   )
 
 
diff --git a/src/3rdparty/freetype/src/autofit/afdummy.h b/src/3rdparty/freetype/src/autofit/afdummy.h
index b69ef437fe..ad1b0d3abb 100644
--- a/src/3rdparty/freetype/src/autofit/afdummy.h
+++ b/src/3rdparty/freetype/src/autofit/afdummy.h
@@ -5,7 +5,7 @@
 /*    Auto-fitter dummy routines to be used if no hinting should be        */
 /*    performed (specification).                                           */
 /*                                                                         */
-/*  Copyright 2003, 2004, 2005 by                                          */
+/*  Copyright 2003-2005, 2011, 2013 by                                     */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -25,11 +25,9 @@
 
 FT_BEGIN_HEADER
 
- /*  A dummy script metrics class used when no hinting should
-  *  be performed.  This is the default for non-latin glyphs!
-  */
+  /* A dummy writing system used when no hinting should be performed. */
 
-  AF_DECLARE_SCRIPT_CLASS(af_dummy_script_class)
+  AF_DECLARE_WRITING_SYSTEM_CLASS( af_dummy_writing_system_class )
 
 /* */
 
diff --git a/src/3rdparty/freetype/src/autofit/aferrors.h b/src/3rdparty/freetype/src/autofit/aferrors.h
index c2ed5fe2ab..50e1a22dd5 100644
--- a/src/3rdparty/freetype/src/autofit/aferrors.h
+++ b/src/3rdparty/freetype/src/autofit/aferrors.h
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    Autofitter error codes (specification only).                         */
 /*                                                                         */
-/*  Copyright 2005 by                                                      */
+/*  Copyright 2005, 2012 by                                                */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -30,6 +30,7 @@
 
 #undef __FTERRORS_H__
 
+#undef  FT_ERR_PREFIX
 #define FT_ERR_PREFIX  AF_Err_
 #define FT_ERR_BASE    FT_Mod_Err_Autofit
 
diff --git a/src/3rdparty/freetype/src/autofit/afglobal.c b/src/3rdparty/freetype/src/autofit/afglobal.c
index ac293619d3..a54c20c023 100644
--- a/src/3rdparty/freetype/src/autofit/afglobal.c
+++ b/src/3rdparty/freetype/src/autofit/afglobal.c
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    Auto-fitter routines to compute global hinting values (body).        */
 /*                                                                         */
-/*  Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 by                  */
+/*  Copyright 2003-2014 by                                                 */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -17,133 +17,215 @@
 
 
 #include "afglobal.h"
-#include "afdummy.h"
-#include "aflatin.h"
-#include "afcjk.h"
-#include "afindic.h"
-#include "afpic.h"
+#include "afranges.h"
+#include "hbshim.h"
+#include FT_INTERNAL_DEBUG_H
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
+  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
+  /* messages during execution.                                            */
+  /*                                                                       */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  trace_afglobal
+
+
+  /* get writing system specific header files */
+#undef  WRITING_SYSTEM
+#define WRITING_SYSTEM( ws, WS )  /* empty */
+#include "afwrtsys.h"
 
 #include "aferrors.h"
+#include "afpic.h"
+
+
+#undef  SCRIPT
+#define SCRIPT( s, S, d, h, sc1, sc2, sc3 ) \
+          AF_DEFINE_SCRIPT_CLASS(           \
+            af_ ## s ## _script_class,      \
+            AF_SCRIPT_ ## S,                \
+            af_ ## s ## _uniranges,         \
+            sc1, sc2, sc3 )
+
+#include "afscript.h"
+
+
+#undef  STYLE
+#define STYLE( s, S, d, ws, sc, ss, c )  \
+          AF_DEFINE_STYLE_CLASS(         \
+            af_ ## s ## _style_class,    \
+            AF_STYLE_ ## S,              \
+            ws,                          \
+            sc,                          \
+            ss,                          \
+            c )
+
+#include "afstyles.h"
 
-#ifdef FT_OPTION_AUTOFIT2
-#include "aflatin2.h"
-#endif
 
 #ifndef FT_CONFIG_OPTION_PIC
 
-/* when updating this table, don't forget to update 
-  AF_SCRIPT_CLASSES_COUNT and autofit_module_class_pic_init */
+#undef  WRITING_SYSTEM
+#define WRITING_SYSTEM( ws, WS )               \
+          &af_ ## ws ## _writing_system_class,
 
-  /* populate this list when you add new scripts */
-  static AF_ScriptClass const  af_script_classes[] =
+  FT_LOCAL_ARRAY_DEF( AF_WritingSystemClass )
+  af_writing_system_classes[] =
   {
-    &af_dummy_script_class,
-#ifdef FT_OPTION_AUTOFIT2
-    &af_latin2_script_class,
-#endif
-    &af_latin_script_class,
-    &af_cjk_script_class,
-    &af_indic_script_class, 
+
+#include "afwrtsys.h"
+
     NULL  /* do not remove */
   };
 
-#endif /* FT_CONFIG_OPTION_PIC */
 
-  /* index of default script in `af_script_classes' */
-#define AF_SCRIPT_LIST_DEFAULT  2
-  /* a bit mask indicating an uncovered glyph       */
-#define AF_SCRIPT_LIST_NONE     0x7F
-  /* if this flag is set, we have an ASCII digit    */
-#define AF_DIGIT                0x80
+#undef  SCRIPT
+#define SCRIPT( s, S, d, h, sc1, sc2, sc3 ) \
+          &af_ ## s ## _script_class,
+
+  FT_LOCAL_ARRAY_DEF( AF_ScriptClass )
+  af_script_classes[] =
+  {
+
+#include "afscript.h"
+
+    NULL  /* do not remove */
+  };
 
 
-  /*
-   *  Note that glyph_scripts[] is used to map each glyph into
-   *  an index into the `af_script_classes' array.
-   *
-   */
-  typedef struct  AF_FaceGlobalsRec_
+#undef  STYLE
+#define STYLE( s, S, d, ws, sc, ss, c ) \
+          &af_ ## s ## _style_class,
+
+  FT_LOCAL_ARRAY_DEF( AF_StyleClass )
+  af_style_classes[] =
   {
-    FT_Face           face;
-    FT_Long           glyph_count;    /* same as face->num_glyphs */
-    FT_Byte*          glyph_scripts;
 
-    AF_ScriptMetrics  metrics[AF_SCRIPT_MAX];
+#include "afstyles.h"
+
+    NULL  /* do not remove */
+  };
+
+#endif /* !FT_CONFIG_OPTION_PIC */
+
 
-  } AF_FaceGlobalsRec;
+#ifdef FT_DEBUG_LEVEL_TRACE
 
+#undef  STYLE
+#define STYLE( s, S, d, ws, sc, ss, c )  #s,
+
+  FT_LOCAL_ARRAY_DEF( char* )
+  af_style_names[] =
+  {
+
+#include "afstyles.h"
+
+  };
 
-  /* Compute the script index of each glyph within a given face. */
+#endif /* FT_DEBUG_LEVEL_TRACE */
+
+
+  /* Compute the style index of each glyph within a given face. */
 
   static FT_Error
-  af_face_globals_compute_script_coverage( AF_FaceGlobals  globals )
+  af_face_globals_compute_style_coverage( AF_FaceGlobals  globals )
   {
-    FT_Error    error       = AF_Err_Ok;
+    FT_Error    error;
     FT_Face     face        = globals->face;
     FT_CharMap  old_charmap = face->charmap;
-    FT_Byte*    gscripts    = globals->glyph_scripts;
-    FT_UInt     ss, i;
+    FT_Byte*    gstyles     = globals->glyph_styles;
+    FT_UInt     ss;
+    FT_UInt     i;
+    FT_UInt     dflt        = ~0U; /* a non-valid value */
 
 
-    /* the value 255 means `uncovered glyph' */
-    FT_MEM_SET( globals->glyph_scripts,
-                AF_SCRIPT_LIST_NONE,
+    /* the value AF_STYLE_UNASSIGNED means `uncovered glyph' */
+    FT_MEM_SET( globals->glyph_styles,
+                AF_STYLE_UNASSIGNED,
                 globals->glyph_count );
 
     error = FT_Select_Charmap( face, FT_ENCODING_UNICODE );
     if ( error )
     {
-     /*
-      *  Ignore this error; we simply use the default script.
-      *  XXX: Shouldn't we rather disable hinting?
-      */
-      error = AF_Err_Ok;
+      /*
+       * Ignore this error; we simply use the fallback style.
+       * XXX: Shouldn't we rather disable hinting?
+       */
+      error = FT_Err_Ok;
       goto Exit;
     }
 
-    /* scan each script in a Unicode charmap */
-    for ( ss = 0; AF_SCRIPT_CLASSES_GET[ss]; ss++ )
+    /* scan each style in a Unicode charmap */
+    for ( ss = 0; AF_STYLE_CLASSES_GET[ss]; ss++ )
     {
-      AF_ScriptClass      clazz = AF_SCRIPT_CLASSES_GET[ss];
+      AF_StyleClass       style_class =
+                            AF_STYLE_CLASSES_GET[ss];
+      AF_ScriptClass      script_class =
+                            AF_SCRIPT_CLASSES_GET[style_class->script];
       AF_Script_UniRange  range;
 
 
-      if ( clazz->script_uni_ranges == NULL )
+      if ( script_class->script_uni_ranges == NULL )
         continue;
 
       /*
-       *  Scan all unicode points in the range and set the corresponding
-       *  glyph script index.
+       *  Scan all Unicode points in the range and set the corresponding
+       *  glyph style index.
        */
-      for ( range = clazz->script_uni_ranges; range->first != 0; range++ )
+      if ( style_class->coverage == AF_COVERAGE_DEFAULT )
       {
-        FT_ULong  charcode = range->first;
-        FT_UInt   gindex;
-
+        if ( (FT_UInt)style_class->script ==
+             globals->module->default_script )
+          dflt = ss;
 
-        gindex = FT_Get_Char_Index( face, charcode );
-
-        if ( gindex != 0                             &&
-             gindex < (FT_ULong)globals->glyph_count &&
-             gscripts[gindex] == AF_SCRIPT_LIST_NONE )
+        for ( range = script_class->script_uni_ranges;
+              range->first != 0;
+              range++ )
         {
-          gscripts[gindex] = (FT_Byte)ss;
-        }
+          FT_ULong  charcode = range->first;
+          FT_UInt   gindex;
 
-        for (;;)
-        {
-          charcode = FT_Get_Next_Char( face, charcode, &gindex );
 
-          if ( gindex == 0 || charcode > range->last )
-            break;
+          gindex = FT_Get_Char_Index( face, charcode );
 
-          if ( gindex < (FT_ULong)globals->glyph_count &&
-               gscripts[gindex] == AF_SCRIPT_LIST_NONE )
+          if ( gindex != 0                             &&
+               gindex < (FT_ULong)globals->glyph_count &&
+               gstyles[gindex] == AF_STYLE_UNASSIGNED  )
+            gstyles[gindex] = (FT_Byte)ss;
+
+          for (;;)
           {
-            gscripts[gindex] = (FT_Byte)ss;
+            charcode = FT_Get_Next_Char( face, charcode, &gindex );
+
+            if ( gindex == 0 || charcode > range->last )
+              break;
+
+            if ( gindex < (FT_ULong)globals->glyph_count &&
+                 gstyles[gindex] == AF_STYLE_UNASSIGNED  )
+              gstyles[gindex] = (FT_Byte)ss;
           }
         }
       }
+      else
+      {
+        /* get glyphs not directly addressable by cmap */
+        af_get_coverage( globals, style_class, gstyles );
+      }
+    }
+
+    /* handle the default OpenType features of the default script ... */
+    af_get_coverage( globals, AF_STYLE_CLASSES_GET[dflt], gstyles );
+
+    /* ... and the remaining default OpenType features */
+    for ( ss = 0; AF_STYLE_CLASSES_GET[ss]; ss++ )
+    {
+      AF_StyleClass  style_class = AF_STYLE_CLASSES_GET[ss];
+
+
+      if ( ss != dflt && style_class->coverage == AF_COVERAGE_DEFAULT )
+        af_get_coverage( globals, style_class, gstyles );
     }
 
     /* mark ASCII digits */
@@ -153,25 +235,68 @@
 
 
       if ( gindex != 0 && gindex < (FT_ULong)globals->glyph_count )
-        gscripts[gindex] |= AF_DIGIT;
+        gstyles[gindex] |= AF_DIGIT;
     }
 
   Exit:
     /*
-     *  By default, all uncovered glyphs are set to the latin script.
+     *  By default, all uncovered glyphs are set to the fallback style.
      *  XXX: Shouldn't we disable hinting or do something similar?
      */
+    if ( globals->module->fallback_style != AF_STYLE_UNASSIGNED )
     {
       FT_Long  nn;
 
 
       for ( nn = 0; nn < globals->glyph_count; nn++ )
       {
-        if ( gscripts[nn] == AF_SCRIPT_LIST_NONE )
-          gscripts[nn] = AF_SCRIPT_LIST_DEFAULT;
+        if ( ( gstyles[nn] & ~AF_DIGIT ) == AF_STYLE_UNASSIGNED )
+        {
+          gstyles[nn] &= ~AF_STYLE_UNASSIGNED;
+          gstyles[nn] |= globals->module->fallback_style;
+        }
+      }
+    }
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+
+    FT_TRACE4(( "\n"
+                "style coverage\n"
+                "==============\n"
+                "\n" ));
+
+    for ( ss = 0; AF_STYLE_CLASSES_GET[ss]; ss++ )
+    {
+      AF_StyleClass  style_class = AF_STYLE_CLASSES_GET[ss];
+      FT_UInt        count       = 0;
+      FT_Long        idx;
+
+
+      FT_TRACE4(( "%s:\n", af_style_names[style_class->style] ));
+
+      for ( idx = 0; idx < globals->glyph_count; idx++ )
+      {
+        if ( ( gstyles[idx] & ~AF_DIGIT ) == style_class->style )
+        {
+          if ( !( count % 10 ) )
+            FT_TRACE4(( " " ));
+
+          FT_TRACE4(( " %d", idx ));
+          count++;
+
+          if ( !( count % 10 ) )
+            FT_TRACE4(( "\n" ));
+        }
       }
+
+      if ( !count )
+        FT_TRACE4(( "  (none)\n" ));
+      if ( count % 10 )
+        FT_TRACE4(( "\n" ));
     }
 
+#endif /* FT_DEBUG_LEVEL_TRACE */
+
     FT_Set_Charmap( face, old_charmap );
     return error;
   }
@@ -179,30 +304,39 @@
 
   FT_LOCAL_DEF( FT_Error )
   af_face_globals_new( FT_Face          face,
-                       AF_FaceGlobals  *aglobals )
+                       AF_FaceGlobals  *aglobals,
+                       AF_Module        module )
   {
     FT_Error        error;
     FT_Memory       memory;
-    AF_FaceGlobals  globals;
+    AF_FaceGlobals  globals = NULL;
 
 
     memory = face->memory;
 
-    if ( !FT_ALLOC( globals, sizeof ( *globals ) +
-                             face->num_glyphs * sizeof ( FT_Byte ) ) )
-    {
-      globals->face          = face;
-      globals->glyph_count   = face->num_glyphs;
-      globals->glyph_scripts = (FT_Byte*)( globals + 1 );
+    if ( FT_ALLOC( globals, sizeof ( *globals ) +
+                            face->num_glyphs * sizeof ( FT_Byte ) ) )
+      goto Exit;
 
-      error = af_face_globals_compute_script_coverage( globals );
-      if ( error )
-      {
-        af_face_globals_free( globals );
-        globals = NULL;
-      }
+    globals->face         = face;
+    globals->glyph_count  = face->num_glyphs;
+    globals->glyph_styles = (FT_Byte*)( globals + 1 );
+    globals->module       = module;
+
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
+    globals->hb_font = hb_ft_font_create( face, NULL );
+#endif
+
+    error = af_face_globals_compute_style_coverage( globals );
+    if ( error )
+    {
+      af_face_globals_free( globals );
+      globals = NULL;
     }
+    else
+      globals->increase_x_height = AF_PROP_INCREASE_X_HEIGHT_MAX;
 
+  Exit:
     *aglobals = globals;
     return error;
   }
@@ -217,25 +351,31 @@
       FT_UInt    nn;
 
 
-      for ( nn = 0; nn < AF_SCRIPT_MAX; nn++ )
+      for ( nn = 0; nn < AF_STYLE_MAX; nn++ )
       {
         if ( globals->metrics[nn] )
         {
-          AF_ScriptClass  clazz = AF_SCRIPT_CLASSES_GET[nn];
+          AF_StyleClass          style_class =
+            AF_STYLE_CLASSES_GET[nn];
+          AF_WritingSystemClass  writing_system_class =
+            AF_WRITING_SYSTEM_CLASSES_GET[style_class->writing_system];
 
 
-          FT_ASSERT( globals->metrics[nn]->clazz == clazz );
-
-          if ( clazz->script_metrics_done )
-            clazz->script_metrics_done( globals->metrics[nn] );
+          if ( writing_system_class->style_metrics_done )
+            writing_system_class->style_metrics_done( globals->metrics[nn] );
 
           FT_FREE( globals->metrics[nn] );
         }
       }
 
-      globals->glyph_count   = 0;
-      globals->glyph_scripts = NULL;  /* no need to free this one! */
-      globals->face          = NULL;
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
+      hb_font_destroy( globals->hb_font );
+      globals->hb_font = NULL;
+#endif
+
+      globals->glyph_count  = 0;
+      globals->glyph_styles = NULL;  /* no need to free this one! */
+      globals->face         = NULL;
 
       FT_FREE( globals );
     }
@@ -243,60 +383,64 @@
 
 
   FT_LOCAL_DEF( FT_Error )
-  af_face_globals_get_metrics( AF_FaceGlobals     globals,
-                               FT_UInt            gindex,
-                               FT_UInt            options,
-                               AF_ScriptMetrics  *ametrics )
+  af_face_globals_get_metrics( AF_FaceGlobals    globals,
+                               FT_UInt           gindex,
+                               FT_UInt           options,
+                               AF_StyleMetrics  *ametrics )
   {
-    AF_ScriptMetrics  metrics = NULL;
-    FT_UInt           gidx;
-    AF_ScriptClass    clazz;
-    FT_UInt           script     = options & 15;
-    const FT_Offset   script_max = sizeof ( AF_SCRIPT_CLASSES_GET ) /
-                                     sizeof ( AF_SCRIPT_CLASSES_GET[0] );
-    FT_Error          error      = AF_Err_Ok;
+    AF_StyleMetrics  metrics = NULL;
+
+    AF_Style               style = (AF_Style)options;
+    AF_WritingSystemClass  writing_system_class;
+    AF_StyleClass          style_class;
+
+    FT_Error  error = FT_Err_Ok;
 
 
     if ( gindex >= (FT_ULong)globals->glyph_count )
     {
-      error = AF_Err_Invalid_Argument;
+      error = FT_THROW( Invalid_Argument );
       goto Exit;
     }
 
-    gidx = script;
-    if ( gidx == 0 || gidx + 1 >= script_max )
-      gidx = globals->glyph_scripts[gindex] & AF_SCRIPT_LIST_NONE;
+    /* if we have a forced style (via `options'), use it, */
+    /* otherwise look into `glyph_styles' array           */
+    if ( style == AF_STYLE_NONE_DFLT || style + 1 >= AF_STYLE_MAX )
+      style = (AF_Style)( globals->glyph_styles[gindex] &
+                          AF_STYLE_UNASSIGNED           );
 
-    clazz = AF_SCRIPT_CLASSES_GET[gidx];
-    if ( script == 0 )
-      script = clazz->script;
+    style_class          = AF_STYLE_CLASSES_GET[style];
+    writing_system_class = AF_WRITING_SYSTEM_CLASSES_GET
+                             [style_class->writing_system];
 
-    metrics = globals->metrics[clazz->script];
+    metrics = globals->metrics[style];
     if ( metrics == NULL )
     {
-      /* create the global metrics object when needed */
+      /* create the global metrics object if necessary */
       FT_Memory  memory = globals->face->memory;
 
 
-      if ( FT_ALLOC( metrics, clazz->script_metrics_size ) )
+      if ( FT_ALLOC( metrics, writing_system_class->style_metrics_size ) )
         goto Exit;
 
-      metrics->clazz = clazz;
+      metrics->style_class = style_class;
+      metrics->globals     = globals;
 
-      if ( clazz->script_metrics_init )
+      if ( writing_system_class->style_metrics_init )
       {
-        error = clazz->script_metrics_init( metrics, globals->face );
+        error = writing_system_class->style_metrics_init( metrics,
+                                                          globals->face );
         if ( error )
         {
-          if ( clazz->script_metrics_done )
-            clazz->script_metrics_done( metrics );
+          if ( writing_system_class->style_metrics_done )
+            writing_system_class->style_metrics_done( metrics );
 
           FT_FREE( metrics );
           goto Exit;
         }
       }
 
-      globals->metrics[clazz->script] = metrics;
+      globals->metrics[style] = metrics;
     }
 
   Exit:
@@ -311,7 +455,7 @@
                             FT_UInt         gindex )
   {
     if ( gindex < (FT_ULong)globals->glyph_count )
-      return (FT_Bool)( globals->glyph_scripts[gindex] & AF_DIGIT );
+      return (FT_Bool)( globals->glyph_styles[gindex] & AF_DIGIT );
 
     return (FT_Bool)0;
   }
diff --git a/src/3rdparty/freetype/src/autofit/afglobal.h b/src/3rdparty/freetype/src/autofit/afglobal.h
index 2a68e19607..38d8d69528 100644
--- a/src/3rdparty/freetype/src/autofit/afglobal.h
+++ b/src/3rdparty/freetype/src/autofit/afglobal.h
@@ -5,7 +5,7 @@
 /*    Auto-fitter routines to compute global hinting values                */
 /*    (specification).                                                     */
 /*                                                                         */
-/*  Copyright 2003, 2004, 2005, 2007, 2009 by                              */
+/*  Copyright 2003-2005, 2007, 2009, 2011-2014 by                          */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -17,16 +17,71 @@
 /***************************************************************************/
 
 
-#ifndef __AF_GLOBAL_H__
-#define __AF_GLOBAL_H__
+#ifndef __AFGLOBAL_H__
+#define __AFGLOBAL_H__
 
 
 #include "aftypes.h"
+#include "afmodule.h"
+#include "hbshim.h"
 
 
 FT_BEGIN_HEADER
 
 
+  FT_LOCAL_ARRAY( AF_WritingSystemClass )
+  af_writing_system_classes[];
+
+
+#undef  SCRIPT
+#define SCRIPT( s, S, d, h, sc1, sc2, sc3 )                    \
+          AF_DECLARE_SCRIPT_CLASS( af_ ## s ## _script_class )
+
+#include "afscript.h"
+
+  FT_LOCAL_ARRAY( AF_ScriptClass )
+  af_script_classes[];
+
+
+#undef  STYLE
+#define STYLE( s, S, d, ws, sc, ss, c )                      \
+          AF_DECLARE_STYLE_CLASS( af_ ## s ## _style_class )
+
+#include "afstyles.h"
+
+  FT_LOCAL_ARRAY( AF_StyleClass )
+  af_style_classes[];
+
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+  FT_LOCAL_ARRAY( char* )
+  af_style_names[];
+#endif
+
+
+  /*
+   *  Default values and flags for both autofitter globals (found in
+   *  AF_ModuleRec) and face globals (in AF_FaceGlobalsRec).
+   */
+
+  /* index of fallback style in `af_style_classes' */
+#ifdef AF_CONFIG_OPTION_CJK
+#define AF_STYLE_FALLBACK    AF_STYLE_HANI_DFLT
+#else
+#define AF_STYLE_FALLBACK    AF_STYLE_NONE_DFLT
+#endif
+  /* default script for OpenType; ignored if HarfBuzz isn't used */
+#define AF_SCRIPT_DEFAULT    AF_SCRIPT_LATN
+  /* a bit mask indicating an uncovered glyph        */
+#define AF_STYLE_UNASSIGNED  0x7F
+  /* if this flag is set, we have an ASCII digit     */
+#define AF_DIGIT             0x80
+
+  /* `increase-x-height' property */
+#define AF_PROP_INCREASE_X_HEIGHT_MIN  6
+#define AF_PROP_INCREASE_X_HEIGHT_MAX  0
+
+
   /************************************************************************/
   /************************************************************************/
   /*****                                                              *****/
@@ -37,21 +92,45 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  model the global hints data for a given face, decomposed into
-   *  script-specific items
+   *  Note that glyph_styles[] maps each glyph to an index into the
+   *  `af_style_classes' array.
+   *
    */
-  typedef struct AF_FaceGlobalsRec_*   AF_FaceGlobals;
+  typedef struct  AF_FaceGlobalsRec_
+  {
+    FT_Face          face;
+    FT_Long          glyph_count;    /* same as face->num_glyphs */
+    FT_Byte*         glyph_styles;
+
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
+    hb_font_t*       hb_font;
+#endif
+
+    /* per-face auto-hinter properties */
+    FT_UInt          increase_x_height;
 
+    AF_StyleMetrics  metrics[AF_STYLE_MAX];
+
+    AF_Module        module;         /* to access global properties */
+
+  } AF_FaceGlobalsRec;
+
+
+  /*
+   *  model the global hints data for a given face, decomposed into
+   *  style-specific items
+   */
 
   FT_LOCAL( FT_Error )
   af_face_globals_new( FT_Face          face,
-                       AF_FaceGlobals  *aglobals );
+                       AF_FaceGlobals  *aglobals,
+                       AF_Module        module );
 
   FT_LOCAL( FT_Error )
-  af_face_globals_get_metrics( AF_FaceGlobals     globals,
-                               FT_UInt            gindex,
-                               FT_UInt            options,
-                               AF_ScriptMetrics  *ametrics );
+  af_face_globals_get_metrics( AF_FaceGlobals    globals,
+                               FT_UInt           gindex,
+                               FT_UInt           options,
+                               AF_StyleMetrics  *ametrics );
 
   FT_LOCAL( void )
   af_face_globals_free( AF_FaceGlobals  globals );
@@ -65,7 +144,7 @@ FT_BEGIN_HEADER
 
 FT_END_HEADER
 
-#endif /* __AF_GLOBALS_H__ */
+#endif /* __AFGLOBAL_H__ */
 
 
 /* END */
diff --git a/src/3rdparty/freetype/src/autofit/afhints.c b/src/3rdparty/freetype/src/autofit/afhints.c
index fe38fba995..f3cc50f202 100644
--- a/src/3rdparty/freetype/src/autofit/afhints.c
+++ b/src/3rdparty/freetype/src/autofit/afhints.c
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    Auto-fitter hinting routines (body).                                 */
 /*                                                                         */
-/*  Copyright 2003, 2004, 2005, 2006, 2007, 2009 by                        */
+/*  Copyright 2003-2007, 2009-2014 by                                      */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -19,14 +19,27 @@
 #include "afhints.h"
 #include "aferrors.h"
 #include FT_INTERNAL_CALC_H
+#include FT_INTERNAL_DEBUG_H
 
 
+  /*************************************************************************/
+  /*                                                                       */
+  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
+  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
+  /* messages during execution.                                            */
+  /*                                                                       */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  trace_afhints
+
+
+  /* Get new segment for given axis. */
+
   FT_LOCAL_DEF( FT_Error )
   af_axis_hints_new_segment( AF_AxisHints  axis,
                              FT_Memory     memory,
                              AF_Segment   *asegment )
   {
-    FT_Error    error   = AF_Err_Ok;
+    FT_Error    error   = FT_Err_Ok;
     AF_Segment  segment = NULL;
 
 
@@ -39,7 +52,7 @@
 
       if ( old_max >= big_max )
       {
-        error = AF_Err_Out_Of_Memory;
+        error = FT_THROW( Out_Of_Memory );
         goto Exit;
       }
 
@@ -61,14 +74,17 @@
   }
 
 
+  /* Get new edge for given axis, direction, and position, */
+  /* without initializing the edge itself.                 */
+
   FT_LOCAL( FT_Error )
   af_axis_hints_new_edge( AF_AxisHints  axis,
                           FT_Int        fpos,
                           AF_Direction  dir,
                           FT_Memory     memory,
-                          AF_Edge      *aedge )
+                          AF_Edge      *anedge )
   {
-    FT_Error  error = AF_Err_Ok;
+    FT_Error  error = FT_Err_Ok;
     AF_Edge   edge  = NULL;
     AF_Edge   edges;
 
@@ -82,7 +98,7 @@
 
       if ( old_max >= big_max )
       {
-        error = AF_Err_Out_Of_Memory;
+        error = FT_THROW( Out_Of_Memory );
         goto Exit;
       }
 
@@ -115,20 +131,27 @@
 
     axis->num_edges++;
 
-    FT_ZERO( edge );
-    edge->fpos = (FT_Short)fpos;
-    edge->dir  = (FT_Char)dir;
-
   Exit:
-    *aedge = edge;
+    *anedge = edge;
     return error;
   }
 
 
-#ifdef AF_DEBUG
+#ifdef FT_DEBUG_AUTOFIT
 
 #include FT_CONFIG_STANDARD_LIBRARY_H
 
+  /* The dump functions are used in the `ftgrid' demo program, too. */
+#define AF_DUMP( varformat )          \
+          do                          \
+          {                           \
+            if ( to_stdout )          \
+              printf varformat;       \
+            else                      \
+              FT_TRACE7( varformat ); \
+          } while ( 0 )
+
+
   static const char*
   af_dir_str( AF_Direction  dir )
   {
@@ -157,41 +180,41 @@
   }
 
 
-#define AF_INDEX_NUM( ptr, base )  ( (ptr) ? ( (ptr) - (base) ) : -1 )
+#define AF_INDEX_NUM( ptr, base )  (int)( (ptr) ? ( (ptr) - (base) ) : -1 )
 
 
+#ifdef __cplusplus
+  extern "C" {
+#endif
   void
-  af_glyph_hints_dump_points( AF_GlyphHints  hints )
+  af_glyph_hints_dump_points( AF_GlyphHints  hints,
+                              FT_Bool        to_stdout )
   {
     AF_Point  points = hints->points;
     AF_Point  limit  = points + hints->num_points;
     AF_Point  point;
 
 
-    printf( "Table of points:\n" );
-    printf(   "  [ index |  xorg |  yorg |  xscale |  yscale "
-              "|  xfit  |  yfit  |  flags ]\n" );
+    AF_DUMP(( "Table of points:\n"
+              "  [ index |  xorg |  yorg | xscale | yscale"
+              " |  xfit |  yfit |  flags ]\n" ));
 
     for ( point = points; point < limit; point++ )
-    {
-      printf( "  [ %5d | %5d | %5d | %-5.2f | %-5.2f "
-              "| %-5.2f | %-5.2f | %c%c%c%c%c%c ]\n",
-              point - points,
-              point->fx,
-              point->fy,
-              point->ox/64.0,
-              point->oy/64.0,
-              point->x/64.0,
-              point->y/64.0,
-              ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) ? 'w' : ' ',
-              ( point->flags & AF_FLAG_INFLECTION )         ? 'i' : ' ',
-              ( point->flags & AF_FLAG_EXTREMA_X )          ? '<' : ' ',
-              ( point->flags & AF_FLAG_EXTREMA_Y )          ? 'v' : ' ',
-              ( point->flags & AF_FLAG_ROUND_X )            ? '(' : ' ',
-              ( point->flags & AF_FLAG_ROUND_Y )            ? 'u' : ' ');
-    }
-    printf( "\n" );
+      AF_DUMP(( "  [ %5d | %5d | %5d | %6.2f | %6.2f"
+                " | %5.2f | %5.2f | %c ]\n",
+                AF_INDEX_NUM( point, points ),
+                point->fx,
+                point->fy,
+                point->ox / 64.0,
+                point->oy / 64.0,
+                point->x / 64.0,
+                point->y / 64.0,
+                ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) ? 'w' : ' '));
+    AF_DUMP(( "\n" ));
   }
+#ifdef __cplusplus
+  }
+#endif
 
 
   static const char*
@@ -216,15 +239,20 @@
     if ( pos == 0 )
       return "normal";
 
-    temp[pos] = 0;
+    temp[pos] = '\0';
 
     return temp;
   }
 
 
-  /* A function to dump the array of linked segments. */
+  /* Dump the array of linked segments. */
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
   void
-  af_glyph_hints_dump_segments( AF_GlyphHints  hints )
+  af_glyph_hints_dump_segments( AF_GlyphHints  hints,
+                                FT_Bool        to_stdout )
   {
     FT_Int  dimension;
 
@@ -232,36 +260,130 @@
     for ( dimension = 1; dimension >= 0; dimension-- )
     {
       AF_AxisHints  axis     = &hints->axis[dimension];
+      AF_Point      points   = hints->points;
+      AF_Edge       edges    = axis->edges;
       AF_Segment    segments = axis->segments;
       AF_Segment    limit    = segments + axis->num_segments;
       AF_Segment    seg;
 
 
-      printf ( "Table of %s segments:\n",
-               dimension == AF_DIMENSION_HORZ ? "vertical" : "horizontal" );
-      printf ( "  [ index |  pos  |  dir  | link | serif |"
-               " height  | extra | flags    ]\n" );
+      AF_DUMP(( "Table of %s segments:\n",
+                dimension == AF_DIMENSION_HORZ ? "vertical"
+                                               : "horizontal" ));
+      if ( axis->num_segments )
+        AF_DUMP(( "  [ index |  pos  |  dir  | from"
+                  " |  to  | link | serif | edge"
+                  " | height | extra |    flags    ]\n" ));
+      else
+        AF_DUMP(( "  (none)\n" ));
 
       for ( seg = segments; seg < limit; seg++ )
-      {
-        printf ( "  [ %5d | %5.2g | %5s | %4d | %5d | %5d | %5d | %s ]\n",
-                 seg - segments,
-                 dimension == AF_DIMENSION_HORZ ? (int)seg->first->ox / 64.0
-                                                : (int)seg->first->oy / 64.0,
-                 af_dir_str( (AF_Direction)seg->dir ),
-                 AF_INDEX_NUM( seg->link, segments ),
-                 AF_INDEX_NUM( seg->serif, segments ),
-                 seg->height,
-                 seg->height - ( seg->max_coord - seg->min_coord ),
-                 af_edge_flags_to_string( seg->flags ) );
-      }
-      printf( "\n" );
+        AF_DUMP(( "  [ %5d | %5.2g | %5s | %4d"
+                  " | %4d | %4d | %5d | %4d"
+                  " | %6d | %5d | %11s ]\n",
+                  AF_INDEX_NUM( seg, segments ),
+                  dimension == AF_DIMENSION_HORZ
+                               ? (int)seg->first->ox / 64.0
+                               : (int)seg->first->oy / 64.0,
+                  af_dir_str( (AF_Direction)seg->dir ),
+                  AF_INDEX_NUM( seg->first, points ),
+                  AF_INDEX_NUM( seg->last, points ),
+                  AF_INDEX_NUM( seg->link, segments ),
+                  AF_INDEX_NUM( seg->serif, segments ),
+                  AF_INDEX_NUM( seg->edge, edges ),
+                  seg->height,
+                  seg->height - ( seg->max_coord - seg->min_coord ),
+                  af_edge_flags_to_string( (AF_Edge_Flags)seg->flags ) ));
+      AF_DUMP(( "\n" ));
     }
   }
+#ifdef __cplusplus
+  }
+#endif
+
+
+  /* Fetch number of segments. */
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+  FT_Error
+  af_glyph_hints_get_num_segments( AF_GlyphHints  hints,
+                                   FT_Int         dimension,
+                                   FT_Int*        num_segments )
+  {
+    AF_Dimension  dim;
+    AF_AxisHints  axis;
+
+
+    dim = ( dimension == 0 ) ? AF_DIMENSION_HORZ : AF_DIMENSION_VERT;
+
+    axis          = &hints->axis[dim];
+    *num_segments = axis->num_segments;
+
+    return FT_Err_Ok;
+  }
+#ifdef __cplusplus
+  }
+#endif
+
+
+  /* Fetch offset of segments into user supplied offset array. */
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+  FT_Error
+  af_glyph_hints_get_segment_offset( AF_GlyphHints  hints,
+                                     FT_Int         dimension,
+                                     FT_Int         idx,
+                                     FT_Pos        *offset,
+                                     FT_Bool       *is_blue,
+                                     FT_Pos        *blue_offset )
+  {
+    AF_Dimension  dim;
+    AF_AxisHints  axis;
+    AF_Segment    seg;
+
+
+    if ( !offset )
+      return FT_THROW( Invalid_Argument );
+
+    dim = ( dimension == 0 ) ? AF_DIMENSION_HORZ : AF_DIMENSION_VERT;
+
+    axis = &hints->axis[dim];
+
+    if ( idx < 0 || idx >= axis->num_segments )
+      return FT_THROW( Invalid_Argument );
+
+    seg      = &axis->segments[idx];
+    *offset  = ( dim == AF_DIMENSION_HORZ ) ? seg->first->ox
+                                            : seg->first->oy;
+    if ( seg->edge )
+      *is_blue = (FT_Bool)( seg->edge->blue_edge != 0 );
+    else
+      *is_blue = FALSE;
+
+    if ( *is_blue )
+      *blue_offset = seg->edge->blue_edge->cur;
+    else
+      *blue_offset = 0;
+
+    return FT_Err_Ok;
+  }
+#ifdef __cplusplus
+  }
+#endif
+
 
+  /* Dump the array of linked edges. */
 
+#ifdef __cplusplus
+  extern "C" {
+#endif
   void
-  af_glyph_hints_dump_edges( AF_GlyphHints  hints )
+  af_glyph_hints_dump_edges( AF_GlyphHints  hints,
+                             FT_Bool        to_stdout )
   {
     FT_Int  dimension;
 
@@ -276,60 +398,43 @@
 
       /*
        *  note: AF_DIMENSION_HORZ corresponds to _vertical_ edges
-       *        since they have constant a X coordinate.
+       *        since they have a constant X coordinate.
        */
-      printf ( "Table of %s edges:\n",
-               dimension == AF_DIMENSION_HORZ ? "vertical" : "horizontal" );
-      printf ( "  [ index |  pos  |  dir  | link |"
-               " serif | blue | opos  |  pos  | flags   ]\n" );
+      AF_DUMP(( "Table of %s edges:\n",
+                dimension == AF_DIMENSION_HORZ ? "vertical"
+                                               : "horizontal" ));
+      if ( axis->num_edges )
+        AF_DUMP(( "  [ index |  pos  |  dir  | link"
+                  " | serif | blue | opos  |  pos  |    flags    ]\n" ));
+      else
+        AF_DUMP(( "  (none)\n" ));
 
       for ( edge = edges; edge < limit; edge++ )
-      {
-        printf ( "  [ %5d | %5.2g | %5s | %4d |"
-                 " %5d |   %c  | %5.2f | %5.2f | %s ]\n",
-                 edge - edges,
-                 (int)edge->opos / 64.0,
-                 af_dir_str( (AF_Direction)edge->dir ),
-                 AF_INDEX_NUM( edge->link, edges ),
-                 AF_INDEX_NUM( edge->serif, edges ),
-                 edge->blue_edge ? 'y' : 'n',
-                 edge->opos / 64.0,
-                 edge->pos / 64.0,
-                 af_edge_flags_to_string( edge->flags ) );
-      }
-      printf( "\n" );
+        AF_DUMP(( "  [ %5d | %5.2g | %5s | %4d"
+                  " | %5d |   %c  | %5.2f | %5.2f | %11s ]\n",
+                  AF_INDEX_NUM( edge, edges ),
+                  (int)edge->opos / 64.0,
+                  af_dir_str( (AF_Direction)edge->dir ),
+                  AF_INDEX_NUM( edge->link, edges ),
+                  AF_INDEX_NUM( edge->serif, edges ),
+                  edge->blue_edge ? 'y' : 'n',
+                  edge->opos / 64.0,
+                  edge->pos / 64.0,
+                  af_edge_flags_to_string( (AF_Edge_Flags)edge->flags ) ));
+      AF_DUMP(( "\n" ));
     }
   }
-
-#else /* !AF_DEBUG */
-
-  /* these empty stubs are only used to link the `ftgrid' test program */
-  /* when debugging is disabled                                        */
-
-  void
-  af_glyph_hints_dump_points( AF_GlyphHints  hints )
-  {
-    FT_UNUSED( hints );
-  }
-
-
-  void
-  af_glyph_hints_dump_segments( AF_GlyphHints  hints )
-  {
-    FT_UNUSED( hints );
+#ifdef __cplusplus
   }
+#endif
 
+#undef AF_DUMP
 
-  void
-  af_glyph_hints_dump_edges( AF_GlyphHints  hints )
-  {
-    FT_UNUSED( hints );
-  }
+#endif /* !FT_DEBUG_AUTOFIT */
 
-#endif /* !AF_DEBUG */
 
+  /* Compute the direction value of a given vector. */
 
-  /* compute the direction value of a given vector */
   FT_LOCAL_DEF( AF_Direction )
   af_direction_compute( FT_Pos  dx,
                         FT_Pos  dy )
@@ -369,6 +474,8 @@
       }
     }
 
+    /* return no direction if arm lengths differ too much            */
+    /* (value 14 is heuristic, corresponding to approx. 4.1 degrees) */
     ss *= 14;
     if ( FT_ABS( ll ) <= FT_ABS( ss ) )
       dir = AF_DIR_NONE;
@@ -377,120 +484,6 @@
   }
 
 
-  /* compute all inflex points in a given glyph */
-
-  static void
-  af_glyph_hints_compute_inflections( AF_GlyphHints  hints )
-  {
-    AF_Point*  contour       = hints->contours;
-    AF_Point*  contour_limit = contour + hints->num_contours;
-
-
-    /* do each contour separately */
-    for ( ; contour < contour_limit; contour++ )
-    {
-      AF_Point  point = contour[0];
-      AF_Point  first = point;
-      AF_Point  start = point;
-      AF_Point  end   = point;
-      AF_Point  before;
-      AF_Point  after;
-      FT_Pos    in_x, in_y, out_x, out_y;
-      AF_Angle  orient_prev, orient_cur;
-      FT_Int    finished = 0;
-
-
-      /* compute first segment in contour */
-      first = point;
-
-      start = end = first;
-      do
-      {
-        end = end->next;
-        if ( end == first )
-          goto Skip;
-
-        in_x = end->fx - start->fx;
-        in_y = end->fy - start->fy;
-
-      } while ( in_x == 0 && in_y == 0 );
-
-      /* extend the segment start whenever possible */
-      before = start;
-      do
-      {
-        do
-        {
-          start  = before;
-          before = before->prev;
-          if ( before == first )
-            goto Skip;
-
-          out_x = start->fx - before->fx;
-          out_y = start->fy - before->fy;
-
-        } while ( out_x == 0 && out_y == 0 );
-
-        orient_prev = ft_corner_orientation( in_x, in_y, out_x, out_y );
-
-      } while ( orient_prev == 0 );
-
-      first = start;
-
-      in_x = out_x;
-      in_y = out_y;
-
-      /* now process all segments in the contour */
-      do
-      {
-        /* first, extend current segment's end whenever possible */
-        after = end;
-        do
-        {
-          do
-          {
-            end   = after;
-            after = after->next;
-            if ( after == first )
-              finished = 1;
-
-            out_x = after->fx - end->fx;
-            out_y = after->fy - end->fy;
-
-          } while ( out_x == 0 && out_y == 0 );
-
-          orient_cur = ft_corner_orientation( in_x, in_y, out_x, out_y );
-
-        } while ( orient_cur == 0 );
-
-        if ( ( orient_prev + orient_cur ) == 0 )
-        {
-          /* we have an inflection point here */
-          do
-          {
-            start->flags |= AF_FLAG_INFLECTION;
-            start = start->next;
-
-          } while ( start != end );
-
-          start->flags |= AF_FLAG_INFLECTION;
-        }
-
-        start = end;
-        end   = after;
-
-        orient_prev = orient_cur;
-        in_x        = out_x;
-        in_y        = out_y;
-
-      } while ( !finished );
-
-    Skip:
-      ;
-    }
-  }
-
-
   FT_LOCAL_DEF( void )
   af_glyph_hints_init( AF_GlyphHints  hints,
                        FT_Memory      memory )
@@ -503,58 +496,62 @@
   FT_LOCAL_DEF( void )
   af_glyph_hints_done( AF_GlyphHints  hints )
   {
-    if ( hints && hints->memory )
-    {
-      FT_Memory  memory = hints->memory;
-      int        dim;
+    FT_Memory  memory = hints->memory;
+    int        dim;
 
 
-      /*
-       *  note that we don't need to free the segment and edge
-       *  buffers, since they are really within the hints->points array
-       */
-      for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
-      {
-        AF_AxisHints  axis = &hints->axis[dim];
+    if ( !( hints && hints->memory ) )
+      return;
 
+    /*
+     *  note that we don't need to free the segment and edge
+     *  buffers since they are really within the hints->points array
+     */
+    for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
+    {
+      AF_AxisHints  axis = &hints->axis[dim];
 
-        axis->num_segments = 0;
-        axis->max_segments = 0;
-        FT_FREE( axis->segments );
 
-        axis->num_edges    = 0;
-        axis->max_edges    = 0;
-        FT_FREE( axis->edges );
-      }
+      axis->num_segments = 0;
+      axis->max_segments = 0;
+      FT_FREE( axis->segments );
 
-      FT_FREE( hints->contours );
-      hints->max_contours = 0;
-      hints->num_contours = 0;
+      axis->num_edges = 0;
+      axis->max_edges = 0;
+      FT_FREE( axis->edges );
+    }
 
-      FT_FREE( hints->points );
-      hints->num_points = 0;
-      hints->max_points = 0;
+    FT_FREE( hints->contours );
+    hints->max_contours = 0;
+    hints->num_contours = 0;
 
-      hints->memory = NULL;
-    }
+    FT_FREE( hints->points );
+    hints->num_points = 0;
+    hints->max_points = 0;
+
+    hints->memory = NULL;
   }
 
 
+  /* Reset metrics. */
+
   FT_LOCAL_DEF( void )
-  af_glyph_hints_rescale( AF_GlyphHints     hints,
-                          AF_ScriptMetrics  metrics )
+  af_glyph_hints_rescale( AF_GlyphHints    hints,
+                          AF_StyleMetrics  metrics )
   {
     hints->metrics      = metrics;
     hints->scaler_flags = metrics->scaler.flags;
   }
 
 
+  /* Recompute all AF_Point in AF_GlyphHints from the definitions */
+  /* in a source outline.                                         */
+
   FT_LOCAL_DEF( FT_Error )
   af_glyph_hints_reload( AF_GlyphHints  hints,
-                         FT_Outline*    outline,
-                         FT_Bool        get_inflections )
+                         FT_Outline*    outline )
   {
-    FT_Error   error   = AF_Err_Ok;
+    FT_Error   error   = FT_Err_Ok;
     AF_Point   points;
     FT_UInt    old_max, new_max;
     FT_Fixed   x_scale = hints->x_scale;
@@ -572,12 +569,12 @@
     hints->axis[1].num_segments = 0;
     hints->axis[1].num_edges    = 0;
 
-    /* first of all, reallocate the contours array when necessary */
+    /* first of all, reallocate the contours array if necessary */
     new_max = (FT_UInt)outline->n_contours;
     old_max = hints->max_contours;
     if ( new_max > old_max )
     {
-      new_max = ( new_max + 3 ) & ~3;
+      new_max = ( new_max + 3 ) & ~3; /* round up to a multiple of 4 */
 
       if ( FT_RENEW_ARRAY( hints->contours, old_max, new_max ) )
         goto Exit;
@@ -594,7 +591,7 @@
     old_max = hints->max_points;
     if ( new_max > old_max )
     {
-      new_max = ( new_max + 2 + 7 ) & ~7;
+      new_max = ( new_max + 2 + 7 ) & ~7; /* round up to a multiple of 8 */
 
       if ( FT_RENEW_ARRAY( hints->points, old_max, new_max ) )
         goto Exit;
@@ -639,15 +636,16 @@
       {
         FT_Vector*  vec           = outline->points;
         char*       tag           = outline->tags;
-        AF_Point    first         = points;
         AF_Point    end           = points + outline->contours[0];
         AF_Point    prev          = end;
         FT_Int      contour_index = 0;
 
 
-        FT_UNUSED( first );
         for ( point = points; point < point_limit; point++, vec++, tag++ )
         {
+          point->in_dir  = (FT_Char)AF_DIR_NONE;
+          point->out_dir = (FT_Char)AF_DIR_NONE;
+
           point->fx = (FT_Short)vec->x;
           point->fy = (FT_Short)vec->y;
           point->ox = point->x = FT_MulFix( vec->x, x_scale ) + x_delta;
@@ -662,7 +660,7 @@
             point->flags = AF_FLAG_CUBIC;
             break;
           default:
-            point->flags = 0;
+            point->flags = AF_FLAG_NONE;
           }
 
           point->prev = prev;
@@ -673,15 +671,14 @@
           {
             if ( ++contour_index < outline->n_contours )
             {
-              first = point + 1;
-              end   = points + outline->contours[contour_index];
-              prev  = end;
+              end  = points + outline->contours[contour_index];
+              prev = end;
             }
           }
         }
       }
 
-      /* set-up the contours array */
+      /* set up the contours array */
       {
         AF_Point*  contour       = hints->contours;
         AF_Point*  contour_limit = contour + hints->num_contours;
@@ -696,72 +693,239 @@
         }
       }
 
-      /* compute directions of in & out vectors */
       {
-        AF_Point      first  = points;
-        AF_Point      prev   = NULL;
-        FT_Pos        in_x   = 0;
-        FT_Pos        in_y   = 0;
-        AF_Direction  in_dir = AF_DIR_NONE;
+        /*
+         *  Compute directions of `in' and `out' vectors.
+         *
+         *  Note that distances between points that are very near to each
+         *  other are accumulated.  In other words, the auto-hinter
+         *  prepends the small vectors between near points to the first
+         *  non-near vector.  All intermediate points are tagged as
+         *  weak; the directions are adjusted also to be equal to the
+         *  accumulated one.
+         */
+
+        /* value 20 in `near_limit' is heuristic */
+        FT_UInt  units_per_em = hints->metrics->scaler.face->units_per_EM;
+        FT_Int   near_limit   = 20 * units_per_em / 2048;
+        FT_Int   near_limit2  = 2 * near_limit - 1;
+
+        AF_Point*  contour;
+        AF_Point*  contour_limit = hints->contours + hints->num_contours;
+
+
+        for ( contour = hints->contours; contour < contour_limit; contour++ )
+        {
+          AF_Point  first = *contour;
+          AF_Point  next, prev, curr;
 
+          FT_Pos  out_x, out_y;
 
-        for ( point = points; point < point_limit; point++ )
-        {
-          AF_Point  next;
-          FT_Pos    out_x, out_y;
+          FT_Bool  is_first;
 
 
-          if ( point == first )
+          /* since the first point of a contour could be part of a */
+          /* series of near points, go backwards to find the first */
+          /* non-near point and adjust `first'                     */
+
+          point = first;
+          prev  = first->prev;
+
+          while ( prev != first )
           {
-            prev   = first->prev;
-            in_x   = first->fx - prev->fx;
-            in_y   = first->fy - prev->fy;
-            in_dir = af_direction_compute( in_x, in_y );
-            first  = prev + 1;
+            out_x = point->fx - prev->fx;
+            out_y = point->fy - prev->fy;
+
+            /*
+             *  We use Taxicab metrics to measure the vector length.
+             *
+             *  Note that the accumulated distances so far could have the
+             *  opposite direction of the distance measured here.  For this
+             *  reason we use `near_limit2' for the comparison to get a
+             *  non-near point even in the worst case.
+             */
+            if ( FT_ABS( out_x ) + FT_ABS( out_y ) >= near_limit2 )
+              break;
+
+            point = prev;
+            prev  = prev->prev;
+          }
+
+          /* adjust first point */
+          first = point;
+
+          /* now loop over all points of the contour to get */
+          /* `in' and `out' vector directions               */
+
+          curr  = first;
+
+          /*
+           *  We abuse the `u' and `v' fields to store index deltas to the
+           *  next and previous non-near point, respectively.
+           *
+           *  To avoid problems with not having non-near points, we point to
+           *  `first' by default as the next non-near point.
+           *
+           */
+          curr->u  = (FT_Pos)( first - curr );
+          first->v = -curr->u;
+
+          out_x = 0;
+          out_y = 0;
+
+          is_first = 1;
+
+          for ( point = first;
+                point != first || is_first;
+                point = point->next )
+          {
+            AF_Direction  out_dir;
+
+
+            is_first = 0;
+
+            next = point->next;
+
+            out_x += next->fx - point->fx;
+            out_y += next->fy - point->fy;
+
+            if ( FT_ABS( out_x ) + FT_ABS( out_y ) < near_limit )
+            {
+              next->flags |= AF_FLAG_WEAK_INTERPOLATION;
+              continue;
+            }
+
+            curr->u = (FT_Pos)( next - curr );
+            next->v = -curr->u;
+
+            out_dir = af_direction_compute( out_x, out_y );
+
+            /* adjust directions for all points inbetween; */
+            /* the loop also updates position of `curr'    */
+            curr->out_dir = (FT_Char)out_dir;
+            for ( curr = curr->next; curr != next; curr = curr->next )
+            {
+              curr->in_dir  = (FT_Char)out_dir;
+              curr->out_dir = (FT_Char)out_dir;
+            }
+            next->in_dir = (FT_Char)out_dir;
+
+            curr->u  = (FT_Pos)( first - curr );
+            first->v = -curr->u;
+
+            out_x = 0;
+            out_y = 0;
           }
+        }
+
+        /*
+         *  The next step is to `simplify' an outline's topology so that we
+         *  can identify local extrema more reliably: A series of
+         *  non-horizontal or non-vertical vectors pointing into the same
+         *  quadrant are handled as a single, long vector.  From a
+         *  topological point of the view, the intermediate points are of no
+         *  interest and thus tagged as weak.
+         */
+
+        for ( point = points; point < point_limit; point++ )
+        {
+          if ( point->flags & AF_FLAG_WEAK_INTERPOLATION )
+            continue;
+
+          if ( point->in_dir  == AF_DIR_NONE &&
+               point->out_dir == AF_DIR_NONE )
+          {
+            /* check whether both vectors point into the same quadrant */
+
+            FT_Pos  in_x, in_y;
+            FT_Pos  out_x, out_y;
+
+            AF_Point  next_u = point + point->u;
+            AF_Point  prev_v = point + point->v;
 
-          point->in_dir = (FT_Char)in_dir;
 
-          next  = point->next;
-          out_x = next->fx - point->fx;
-          out_y = next->fy - point->fy;
+            in_x = point->fx - prev_v->fx;
+            in_y = point->fy - prev_v->fy;
 
-          in_dir         = af_direction_compute( out_x, out_y );
-          point->out_dir = (FT_Char)in_dir;
+            out_x = next_u->fx - point->fx;
+            out_y = next_u->fy - point->fy;
 
-          if ( point->flags & ( AF_FLAG_CONIC | AF_FLAG_CUBIC ) )
+            if ( ( in_x ^ out_x ) >= 0 && ( in_y ^ out_y ) >= 0 )
+            {
+              /* yes, so tag current point as weak */
+              /* and update index deltas           */
+
+              point->flags |= AF_FLAG_WEAK_INTERPOLATION;
+
+              prev_v->u = (FT_Pos)( next_u - prev_v );
+              next_u->v = -prev_v->u;
+            }
+          }
+        }
+
+        /*
+         *  Finally, check for remaining weak points.  Everything else not
+         *  collected in edges so far is then implicitly classified as strong
+         *  points.
+         */
+
+        for ( point = points; point < point_limit; point++ )
+        {
+          if ( point->flags & AF_FLAG_WEAK_INTERPOLATION )
+            continue;
+
+          if ( point->flags & AF_FLAG_CONTROL )
           {
+            /* control points are always weak */
           Is_Weak_Point:
             point->flags |= AF_FLAG_WEAK_INTERPOLATION;
           }
           else if ( point->out_dir == point->in_dir )
           {
             if ( point->out_dir != AF_DIR_NONE )
+            {
+              /* current point lies on a horizontal or          */
+              /* vertical segment (but doesn't start or end it) */
               goto Is_Weak_Point;
+            }
 
-            if ( ft_corner_is_flat( in_x, in_y, out_x, out_y ) )
-              goto Is_Weak_Point;
+            {
+              AF_Point  next_u = point + point->u;
+              AF_Point  prev_v = point + point->v;
+
+
+              if ( ft_corner_is_flat( point->fx  - prev_v->fx,
+                                      point->fy  - prev_v->fy,
+                                      next_u->fx - point->fx,
+                                      next_u->fy - point->fy ) )
+              {
+                /* either the `in' or the `out' vector is much more  */
+                /* dominant than the other one, so tag current point */
+                /* as weak and update index deltas                   */
+
+                prev_v->u = (FT_Pos)( next_u - prev_v );
+                next_u->v = -prev_v->u;
+
+                goto Is_Weak_Point;
+              }
+            }
           }
           else if ( point->in_dir == -point->out_dir )
+          {
+            /* current point forms a spike */
             goto Is_Weak_Point;
-
-          in_x = out_x;
-          in_y = out_y;
-          prev = point;
+          }
         }
       }
     }
 
-    /* compute inflection points --                 */
-    /* disabled due to no longer perceived benefits */
-    if ( 0 && get_inflections )
-      af_glyph_hints_compute_inflections( hints );
-
   Exit:
     return error;
   }
 
 
+  /* Store the hinted outline in an FT_Outline structure. */
+
   FT_LOCAL_DEF( void )
   af_glyph_hints_save( AF_GlyphHints  hints,
                        FT_Outline*    outline )
@@ -794,6 +958,9 @@
    ****************************************************************/
 
 
+  /* Align all points of an edge to the same coordinate value, */
+  /* either horizontally or vertically.                        */
+
   FT_LOCAL_DEF( void )
   af_glyph_hints_align_edge_points( AF_GlyphHints  hints,
                                     AF_Dimension   dim )
@@ -827,7 +994,6 @@
             break;
 
           point = point->next;
-
         }
       }
     }
@@ -867,8 +1033,8 @@
    ****************************************************************/
 
 
-  /* hint the strong points -- this is equivalent to the TrueType `IP' */
-  /* hinting instruction                                               */
+  /* Hint the strong points -- this is equivalent to the TrueType `IP' */
+  /* hinting instruction.                                              */
 
   FT_LOCAL_DEF( void )
   af_glyph_hints_align_strong_points( AF_GlyphHints  hints,
@@ -905,8 +1071,7 @@
         /* if this point is candidate to weak interpolation, we       */
         /* interpolate it after all strong points have been processed */
 
-        if (  ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) &&
-             !( point->flags & AF_FLAG_INFLECTION )         )
+        if ( ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) )
           continue;
 
         if ( dim == AF_DIMENSION_VERT )
@@ -950,11 +1115,12 @@
           max = edge_limit - edges;
 
 #if 1
-          /* for small edge counts, a linear search is better */
+          /* for a small number of edges, a linear search is better */
           if ( max <= 8 )
           {
             FT_PtrDist  nn;
 
+
             for ( nn = 0; nn < max; nn++ )
               if ( edges[nn].fpos >= u )
                 break;
@@ -986,6 +1152,7 @@
             }
           }
 
+          /* point is not on an edge */
           {
             AF_Edge  before = edges + min - 1;
             AF_Edge  after  = edges + min + 0;
@@ -1021,6 +1188,10 @@
    ****************************************************************/
 
 
+  /* Shift the original coordinates of all points between `p1' and */
+  /* `p2' to get hinted coordinates, using the same difference as  */
+  /* given by `ref'.                                               */
+
   static void
   af_iup_shift( AF_Point  p1,
                 AF_Point  p2,
@@ -1029,6 +1200,7 @@
     AF_Point  p;
     FT_Pos    delta = ref->u - ref->v;
 
+
     if ( delta == 0 )
       return;
 
@@ -1040,6 +1212,13 @@
   }
 
 
+  /* Interpolate the original coordinates of all points between `p1' and  */
+  /* `p2' to get hinted coordinates, using `ref1' and `ref2' as the       */
+  /* reference points.  The `u' and `v' members are the current and       */
+  /* original coordinate values, respectively.                            */
+  /*                                                                      */
+  /* Details can be found in the TrueType bytecode specification.         */
+
   static void
   af_iup_interp( AF_Point  p1,
                  AF_Point  p2,
@@ -1108,6 +1287,9 @@
   }
 
 
+  /* Hint the weak points -- this is equivalent to the TrueType `IUP' */
+  /* hinting instruction.                                             */
+
   FT_LOCAL_DEF( void )
   af_glyph_hints_align_weak_points( AF_GlyphHints  hints,
                                     AF_Dimension   dim )
@@ -1145,8 +1327,6 @@
       }
     }
 
-    point = points;
-
     for ( ; contour < contour_limit; contour++ )
     {
       AF_Point  first_touched, last_touched;
@@ -1169,21 +1349,21 @@
       }
 
       first_touched = point;
-      last_touched  = point;
 
       for (;;)
       {
-        FT_ASSERT( point <= end_point &&
+        FT_ASSERT( point <= end_point                 &&
                    ( point->flags & touch_flag ) != 0 );
 
-        /* skip any touched neighbhours */
-        while ( point < end_point && ( point[1].flags & touch_flag ) != 0 )
+        /* skip any touched neighbours */
+        while ( point < end_point                    &&
+                ( point[1].flags & touch_flag ) != 0 )
           point++;
 
         last_touched = point;
 
         /* find the next touched point, if any */
-        point ++;
+        point++;
         for (;;)
         {
           if ( point > end_point )
@@ -1203,9 +1383,8 @@
     EndContour:
       /* special case: only one point was touched */
       if ( last_touched == first_touched )
-      {
         af_iup_shift( first_point, end_point, first_touched );
-      }
+
       else /* interpolate the last part */
       {
         if ( last_touched < end_point )
@@ -1235,7 +1414,9 @@
   }
 
 
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
+
+  /* Apply (small) warp scale and warp delta for given dimension. */
 
   FT_LOCAL_DEF( void )
   af_glyph_hints_scale_dim( AF_GlyphHints  hints,
@@ -1260,6 +1441,6 @@
     }
   }
 
-#endif /* AF_USE_WARPER */
+#endif /* AF_CONFIG_OPTION_USE_WARPER */
 
 /* END */
diff --git a/src/3rdparty/freetype/src/autofit/afhints.h b/src/3rdparty/freetype/src/autofit/afhints.h
index 675826835a..92101de7ca 100644
--- a/src/3rdparty/freetype/src/autofit/afhints.h
+++ b/src/3rdparty/freetype/src/autofit/afhints.h
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    Auto-fitter hinting routines (specification).                        */
 /*                                                                         */
-/*  Copyright 2003, 2004, 2005, 2006, 2007, 2008 by                        */
+/*  Copyright 2003-2008, 2010-2012, 2014 by                                */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -25,10 +25,10 @@
 
 FT_BEGIN_HEADER
 
- /*
-  *  The definition of outline glyph hints.  These are shared by all
-  *  script analysis routines (until now).
-  */
+  /*
+   *  The definition of outline glyph hints.  These are shared by all
+   *  writing system analysis routines (until now).
+   */
 
   typedef enum  AF_Dimension_
   {
@@ -55,6 +55,157 @@ FT_BEGIN_HEADER
   } AF_Direction;
 
 
+  /*
+   *  The following explanations are mostly taken from the article
+   *
+   *    Real-Time Grid Fitting of Typographic Outlines
+   *
+   *  by David Turner and Werner Lemberg
+   *
+   *    http://www.tug.org/TUGboat/Articles/tb24-3/lemberg.pdf
+   *
+   *  with appropriate updates.
+   *
+   *
+   *  Segments
+   *
+   *    `af_{cjk,latin,...}_hints_compute_segments' are the functions to
+   *    find segments in an outline.
+   *
+   *    A segment is a series of at least two consecutive points that are
+   *    approximately aligned along a coordinate axis.  The analysis to do
+   *    so is specific to a writing system.
+   *
+   *
+   *  Edges
+   *
+   *    `af_{cjk,latin,...}_hints_compute_edges' are the functions to find
+   *    edges.
+   *
+   *    As soon as segments are defined, the auto-hinter groups them into
+   *    edges.  An edge corresponds to a single position on the main
+   *    dimension that collects one or more segments (allowing for a small
+   *    threshold).
+   *
+   *    As an example, the `latin' writing system first tries to grid-fit
+   *    edges, then to align segments on the edges unless it detects that
+   *    they form a serif.
+   *
+   *
+   *                      A          H
+   *                       |        |
+   *                       |        |
+   *                       |        |
+   *                       |        |
+   *         C             |        |             F
+   *          +------<-----+        +-----<------+
+   *          |             B      G             |
+   *          |                                  |
+   *          |                                  |
+   *          +--------------->------------------+
+   *         D                                    E
+   *
+   *
+   *  Stems
+   *
+   *    Stems are detected by `af_{cjk,latin,...}_hint_edges'.
+   *
+   *    Segments need to be `linked' to other ones in order to detect stems.
+   *    A stem is made of two segments that face each other in opposite
+   *    directions and that are sufficiently close to each other.  Using
+   *    vocabulary from the TrueType specification, stem segments form a
+   *    `black distance'.
+   *
+   *    In the above ASCII drawing, the horizontal segments are BC, DE, and
+   *    FG; the vertical segments are AB, CD, EF, and GH.
+   *
+   *    Each segment has at most one `best' candidate to form a black
+   *    distance, or no candidate at all.  Notice that two distinct segments
+   *    can have the same candidate, which frequently means a serif.
+   *
+   *    A stem is recognized by the following condition:
+   *
+   *      best segment_1 = segment_2 && best segment_2 = segment_1
+   *
+   *    The best candidate is stored in field `link' in structure
+   *    `AF_Segment'.
+   *
+   *    In the above ASCII drawing, the best candidate for both AB and CD is
+   *    GH, while the best candidate for GH is AB.  Similarly, the best
+   *    candidate for EF and GH is AB, while the best candidate for AB is
+   *    GH.
+   *
+   *    The detection and handling of stems is dependent on the writing
+   *    system.
+   *
+   *
+   *  Serifs
+   *
+   *    Serifs are detected by `af_{cjk,latin,...}_hint_edges'.
+   *
+   *    In comparison to a stem, a serif (as handled by the auto-hinter
+   *    module that takes care of the `latin' writing system) has
+   *
+   *      best segment_1 = segment_2 && best segment_2 != segment_1
+   *
+   *    where segment_1 corresponds to the serif segment (CD and EF in the
+   *    above ASCII drawing).
+   *
+   *    The best candidate is stored in field `serif' in structure
+   *    `AF_Segment' (and `link' is set to NULL).
+   *
+   *
+   *  Touched points
+   *
+   *    A point is called `touched' if it has been processed somehow by the
+   *    auto-hinter.  It basically means that it shouldn't be moved again
+   *    (or moved only under certain constraints to preserve the already
+   *    applied processing).
+   *
+   *
+   *  Flat and round segments
+   *
+   *    Segments are `round' or `flat', depending on the series of points
+   *    that define them.  A segment is round if the next and previous point
+   *    of an extremum (which can be either a single point or sequence of
+   *    points) are both conic or cubic control points.  Otherwise, a
+   *    segment with an extremum is flat.
+   *
+   *
+   *  Strong Points
+   *
+   *    Experience has shown that points not part of an edge need to be
+   *    interpolated linearly between their two closest edges, even if these
+   *    are not part of the contour of those particular points.  Typical
+   *    candidates for this are
+   *
+   *    - angle points (i.e., points where the `in' and `out' direction
+   *      differ greatly)
+   *
+   *    - inflection points (i.e., where the `in' and `out' angles are the
+   *      same, but the curvature changes sign) [currently, such points
+   *      aren't handled specially in the auto-hinter]
+   *
+   *    `af_glyph_hints_align_strong_points' is the function that takes
+   *    care of such situations; it is equivalent to the TrueType `IP'
+   *    hinting instruction.
+   *
+   *
+   *  Weak Points
+   *
+   *    Other points in the outline must be interpolated using the
+   *    coordinates of their previous and next unfitted contour neighbours.
+   *    These are called `weak points' and are touched by the function
+   *    `af_glyph_hints_align_weak_points', equivalent to the TrueType `IUP'
+   *    hinting instruction.  Typical candidates are control points and
+   *    points on the contour without a major direction.
+   *
+   *    The major effect is to reduce possible distortion caused by
+   *    alignment of edges and strong points, thus weak points are processed
+   *    after strong points.
+   */
+
+
   /* point hint flags */
   typedef enum  AF_Flags_
   {
@@ -65,23 +216,12 @@ FT_BEGIN_HEADER
     AF_FLAG_CUBIC   = 1 << 1,
     AF_FLAG_CONTROL = AF_FLAG_CONIC | AF_FLAG_CUBIC,
 
-    /* point extremum flags */
-    AF_FLAG_EXTREMA_X = 1 << 2,
-    AF_FLAG_EXTREMA_Y = 1 << 3,
-
-    /* point roundness flags */
-    AF_FLAG_ROUND_X = 1 << 4,
-    AF_FLAG_ROUND_Y = 1 << 5,
-
     /* point touch flags */
-    AF_FLAG_TOUCH_X = 1 << 6,
-    AF_FLAG_TOUCH_Y = 1 << 7,
+    AF_FLAG_TOUCH_X = 1 << 2,
+    AF_FLAG_TOUCH_Y = 1 << 3,
 
     /* candidates for weak interpolation have this flag set */
-    AF_FLAG_WEAK_INTERPOLATION = 1 << 8,
-
-    /* all inflection points in the outline have this flag set */
-    AF_FLAG_INFLECTION = 1 << 9
+    AF_FLAG_WEAK_INTERPOLATION = 1 << 4
 
   } AF_Flags;
 
@@ -89,10 +229,11 @@ FT_BEGIN_HEADER
   /* edge hint flags */
   typedef enum  AF_Edge_Flags_
   {
-    AF_EDGE_NORMAL = 0,
-    AF_EDGE_ROUND  = 1 << 0,
-    AF_EDGE_SERIF  = 1 << 1,
-    AF_EDGE_DONE   = 1 << 2
+    AF_EDGE_NORMAL  = 0,
+    AF_EDGE_ROUND   = 1 << 0,
+    AF_EDGE_SERIF   = 1 << 1,
+    AF_EDGE_DONE    = 1 << 2,
+    AF_EDGE_NEUTRAL = 1 << 3  /* set if edge aligns to a neutral blue zone */
 
   } AF_Edge_Flags;
 
@@ -109,7 +250,7 @@ FT_BEGIN_HEADER
     FT_Char    out_dir;  /* direction of outwards vector */
 
     FT_Pos     ox, oy;   /* original, scaled position                   */
-    FT_Short   fx, fy;   /* original, unscaled position (font units)    */
+    FT_Short   fx, fy;   /* original, unscaled position (in font units) */
     FT_Pos     x, y;     /* current position                            */
     FT_Pos     u, v;     /* current (x,y) or (y,x) depending on context */
 
@@ -137,84 +278,80 @@ FT_BEGIN_HEADER
     FT_Pos      score;       /* used during stem matching  */
     FT_Pos      len;         /* used during stem matching  */
 
-    AF_Point    first;       /* first point in edge segment             */
-    AF_Point    last;        /* last point in edge segment              */
-    AF_Point*   contour;     /* ptr to first point of segment's contour */
+    AF_Point    first;       /* first point in edge segment */
+    AF_Point    last;        /* last point in edge segment  */
 
   } AF_SegmentRec;
 
 
   typedef struct  AF_EdgeRec_
   {
-    FT_Short    fpos;       /* original, unscaled position (font units) */
-    FT_Pos      opos;       /* original, scaled position                */
-    FT_Pos      pos;        /* current position                         */
+    FT_Short    fpos;       /* original, unscaled position (in font units) */
+    FT_Pos      opos;       /* original, scaled position                   */
+    FT_Pos      pos;        /* current position                            */
 
     FT_Byte     flags;      /* edge flags                                   */
     FT_Char     dir;        /* edge direction                               */
     FT_Fixed    scale;      /* used to speed up interpolation between edges */
-    AF_Width    blue_edge;  /* non-NULL if this is a blue edge              */
 
-    AF_Edge     link;
-    AF_Edge     serif;
-    FT_Short    num_linked;
+    AF_Width    blue_edge;  /* non-NULL if this is a blue edge */
+    AF_Edge     link;       /* link edge                       */
+    AF_Edge     serif;      /* primary edge for serifs         */
+    FT_Short    num_linked; /* number of linked edges          */
+    FT_Int      score;      /* used during stem matching       */
 
-    FT_Int      score;
-
-    AF_Segment  first;
-    AF_Segment  last;
+    AF_Segment  first;      /* first segment in edge */
+    AF_Segment  last;       /* last segment in edge  */
 
   } AF_EdgeRec;
 
 
   typedef struct  AF_AxisHintsRec_
   {
-    FT_Int        num_segments;
-    FT_Int        max_segments;
-    AF_Segment    segments;
+    FT_Int        num_segments; /* number of used segments      */
+    FT_Int        max_segments; /* number of allocated segments */
+    AF_Segment    segments;     /* segments array               */
 #ifdef AF_SORT_SEGMENTS
     FT_Int        mid_segments;
 #endif
 
-    FT_Int        num_edges;
-    FT_Int        max_edges;
-    AF_Edge       edges;
+    FT_Int        num_edges;    /* number of used edges      */
+    FT_Int        max_edges;    /* number of allocated edges */
+    AF_Edge       edges;        /* edges array               */
 
-    AF_Direction  major_dir;
+    AF_Direction  major_dir;    /* either vertical or horizontal */
 
   } AF_AxisHintsRec, *AF_AxisHints;
 
 
   typedef struct  AF_GlyphHintsRec_
   {
-    FT_Memory         memory;
+    FT_Memory        memory;
 
-    FT_Fixed          x_scale;
-    FT_Pos            x_delta;
+    FT_Fixed         x_scale;
+    FT_Pos           x_delta;
 
-    FT_Fixed          y_scale;
-    FT_Pos            y_delta;
+    FT_Fixed         y_scale;
+    FT_Pos           y_delta;
 
-    FT_Pos            edge_distance_threshold;
+    FT_Int           max_points;    /* number of allocated points */
+    FT_Int           num_points;    /* number of used points      */
+    AF_Point         points;        /* points array               */
 
-    FT_Int            max_points;
-    FT_Int            num_points;
-    AF_Point          points;
+    FT_Int           max_contours;  /* number of allocated contours */
+    FT_Int           num_contours;  /* number of used contours      */
+    AF_Point*        contours;      /* contours array               */
 
-    FT_Int            max_contours;
-    FT_Int            num_contours;
-    AF_Point*         contours;
+    AF_AxisHintsRec  axis[AF_DIMENSION_MAX];
 
-    AF_AxisHintsRec   axis[AF_DIMENSION_MAX];
+    FT_UInt32        scaler_flags;  /* copy of scaler flags    */
+    FT_UInt32        other_flags;   /* free for style-specific */
+                                    /* implementations         */
+    AF_StyleMetrics  metrics;
 
-    FT_UInt32         scaler_flags;  /* copy of scaler flags     */
-    FT_UInt32         other_flags;   /* free for script-specific */
-                                     /* implementations          */
-    AF_ScriptMetrics  metrics;
+    FT_Pos           xmin_delta;    /* used for warping */
+    FT_Pos           xmax_delta;
 
-    FT_Pos            xmin_delta;    /* used for warping */
-    FT_Pos            xmax_delta;
-    
   } AF_GlyphHintsRec;
 
 
@@ -222,7 +359,7 @@ FT_BEGIN_HEADER
 #define AF_HINTS_TEST_OTHER( h, f )   ( (h)->other_flags  & (f) )
 
 
-#ifdef AF_DEBUG
+#ifdef FT_DEBUG_AUTOFIT
 
 #define AF_HINTS_DO_HORIZONTAL( h )                                     \
           ( !_af_debug_disable_horz_hints                            && \
@@ -237,7 +374,7 @@ FT_BEGIN_HEADER
 
 #define AF_HINTS_DO_BLUES( h )  ( !_af_debug_disable_blue_hints )
 
-#else /* !AF_DEBUG */
+#else /* !FT_DEBUG_AUTOFIT */
 
 #define AF_HINTS_DO_HORIZONTAL( h )                                \
           !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_HORIZONTAL )
@@ -250,7 +387,7 @@ FT_BEGIN_HEADER
 
 #define AF_HINTS_DO_BLUES( h )  1
 
-#endif /* !AF_DEBUG */
+#endif /* !FT_DEBUG_AUTOFIT */
 
 
   FT_LOCAL( AF_Direction )
@@ -274,20 +411,13 @@ FT_BEGIN_HEADER
   af_glyph_hints_init( AF_GlyphHints  hints,
                        FT_Memory      memory );
 
-
-
-  /*
-   *  recompute all AF_Point in a AF_GlyphHints from the definitions
-   *  in a source outline
-   */
   FT_LOCAL( void )
-  af_glyph_hints_rescale( AF_GlyphHints     hints,
-                          AF_ScriptMetrics  metrics );
+  af_glyph_hints_rescale( AF_GlyphHints    hints,
+                          AF_StyleMetrics  metrics );
 
   FT_LOCAL( FT_Error )
   af_glyph_hints_reload( AF_GlyphHints  hints,
-                         FT_Outline*    outline,
-                         FT_Bool        get_inflections );
+                         FT_Outline*    outline );
 
   FT_LOCAL( void )
   af_glyph_hints_save( AF_GlyphHints  hints,
@@ -305,7 +435,7 @@ FT_BEGIN_HEADER
   af_glyph_hints_align_weak_points( AF_GlyphHints  hints,
                                     AF_Dimension   dim );
 
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
   FT_LOCAL( void )
   af_glyph_hints_scale_dim( AF_GlyphHints  hints,
                             AF_Dimension   dim,
diff --git a/src/3rdparty/freetype/src/autofit/afindic.c b/src/3rdparty/freetype/src/autofit/afindic.c
index 1d9e9eafba..197881b614 100644
--- a/src/3rdparty/freetype/src/autofit/afindic.c
+++ b/src/3rdparty/freetype/src/autofit/afindic.c
@@ -2,9 +2,9 @@
 /*                                                                         */
 /*  afindic.c                                                              */
 /*                                                                         */
-/*    Auto-fitter hinting routines for Indic scripts (body).               */
+/*    Auto-fitter hinting routines for Indic writing system (body).        */
 /*                                                                         */
-/*  Copyright 2007 by                                                      */
+/*  Copyright 2007, 2011-2013 by                                           */
 /*  Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>.    */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -27,23 +27,42 @@
 #include "afcjk.h"
 
 
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
 #include "afwarp.h"
 #endif
 
 
   static FT_Error
-  af_indic_metrics_init( AF_LatinMetrics  metrics,
-                         FT_Face          face )
+  af_indic_metrics_init( AF_CJKMetrics  metrics,
+                         FT_Face        face )
   {
-    /* use CJK routines */
-    return af_cjk_metrics_init( metrics, face );
+    /* skip blue zone init in CJK routines */
+    FT_CharMap  oldmap = face->charmap;
+
+
+    metrics->units_per_em = face->units_per_EM;
+
+    if ( FT_Select_Charmap( face, FT_ENCODING_UNICODE ) )
+      face->charmap = NULL;
+    else
+    {
+      af_cjk_metrics_init_widths( metrics, face );
+#if 0
+      /* either need indic specific blue_chars[] or just skip blue zones */
+      af_cjk_metrics_init_blues( metrics, face, af_cjk_blue_chars );
+#endif
+      af_cjk_metrics_check_digits( metrics, face );
+    }
+
+    FT_Set_Charmap( face, oldmap );
+
+    return FT_Err_Ok;
   }
 
 
   static void
-  af_indic_metrics_scale( AF_LatinMetrics  metrics,
-                          AF_Scaler        scaler )
+  af_indic_metrics_scale( AF_CJKMetrics  metrics,
+                          AF_Scaler      scaler )
   {
     /* use CJK routines */
     af_cjk_metrics_scale( metrics, scaler );
@@ -51,8 +70,8 @@
 
 
   static FT_Error
-  af_indic_hints_init( AF_GlyphHints    hints,
-                       AF_LatinMetrics  metrics )
+  af_indic_hints_init( AF_GlyphHints  hints,
+                       AF_CJKMetrics  metrics )
   {
     /* use CJK routines */
     return af_cjk_hints_init( hints, metrics );
@@ -60,9 +79,9 @@
 
 
   static FT_Error
-  af_indic_hints_apply( AF_GlyphHints    hints,
-                        FT_Outline*      outline,
-                        AF_LatinMetrics  metrics)
+  af_indic_hints_apply( AF_GlyphHints  hints,
+                        FT_Outline*    outline,
+                        AF_CJKMetrics  metrics )
   {
     /* use CJK routines */
     return af_cjk_hints_apply( hints, outline, metrics );
@@ -78,52 +97,41 @@
   /*************************************************************************/
 
 
-  static const AF_Script_UniRangeRec  af_indic_uniranges[] =
-  {
-#if 0
-    AF_UNIRANGE_REC( 0x0100UL, 0xFFFFUL ),  /* why this? */
-#endif
-    AF_UNIRANGE_REC( 0x0900UL, 0x0DFFUL),    /* Indic Range */
-    AF_UNIRANGE_REC(      0UL,      0UL)
-  };
-
+  AF_DEFINE_WRITING_SYSTEM_CLASS(
+    af_indic_writing_system_class,
 
-  AF_DEFINE_SCRIPT_CLASS(af_indic_script_class,
-    AF_SCRIPT_INDIC,
-    af_indic_uniranges,
+    AF_WRITING_SYSTEM_INDIC,
 
-    sizeof( AF_LatinMetricsRec ),
+    sizeof ( AF_CJKMetricsRec ),
 
-    (AF_Script_InitMetricsFunc) af_indic_metrics_init,
-    (AF_Script_ScaleMetricsFunc)af_indic_metrics_scale,
-    (AF_Script_DoneMetricsFunc) NULL,
+    (AF_WritingSystem_InitMetricsFunc) af_indic_metrics_init,
+    (AF_WritingSystem_ScaleMetricsFunc)af_indic_metrics_scale,
+    (AF_WritingSystem_DoneMetricsFunc) NULL,
 
-    (AF_Script_InitHintsFunc)   af_indic_hints_init,
-    (AF_Script_ApplyHintsFunc)  af_indic_hints_apply
+    (AF_WritingSystem_InitHintsFunc)   af_indic_hints_init,
+    (AF_WritingSystem_ApplyHintsFunc)  af_indic_hints_apply
   )
 
+
 #else /* !AF_CONFIG_OPTION_INDIC */
 
-  static const AF_Script_UniRangeRec  af_indic_uniranges[] =
-  {
-    { 0, 0 }
-  };
 
+  AF_DEFINE_WRITING_SYSTEM_CLASS(
+    af_indic_writing_system_class,
 
-  AF_DEFINE_SCRIPT_CLASS(af_indic_script_class,
-    AF_SCRIPT_INDIC,
-    af_indic_uniranges,
+    AF_WRITING_SYSTEM_INDIC,
 
-    sizeof( AF_LatinMetricsRec ),
+    sizeof ( AF_CJKMetricsRec ),
 
-    (AF_Script_InitMetricsFunc) NULL,
-    (AF_Script_ScaleMetricsFunc)NULL,
-    (AF_Script_DoneMetricsFunc) NULL,
+    (AF_WritingSystem_InitMetricsFunc) NULL,
+    (AF_WritingSystem_ScaleMetricsFunc)NULL,
+    (AF_WritingSystem_DoneMetricsFunc) NULL,
 
-    (AF_Script_InitHintsFunc)   NULL,
-    (AF_Script_ApplyHintsFunc)  NULL
+    (AF_WritingSystem_InitHintsFunc)   NULL,
+    (AF_WritingSystem_ApplyHintsFunc)  NULL
   )
 
+
 #endif /* !AF_CONFIG_OPTION_INDIC */
 
 
diff --git a/src/3rdparty/freetype/src/autofit/afindic.h b/src/3rdparty/freetype/src/autofit/afindic.h
index 662a982200..9e13cf7e3f 100644
--- a/src/3rdparty/freetype/src/autofit/afindic.h
+++ b/src/3rdparty/freetype/src/autofit/afindic.h
@@ -2,9 +2,10 @@
 /*                                                                         */
 /*  afindic.h                                                              */
 /*                                                                         */
-/*    Auto-fitter hinting routines for Indic scripts (specification).      */
+/*    Auto-fitter hinting routines for Indic writing system                */
+/*    (specification).                                                     */
 /*                                                                         */
-/*  Copyright 2007 by                                                      */
+/*  Copyright 2007, 2012, 2013 by                                          */
 /*  Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>.    */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -25,9 +26,9 @@
 FT_BEGIN_HEADER
 
 
-  /* the Indic-specific script class */
+  /* the `indic' writing system */
 
-  AF_DECLARE_SCRIPT_CLASS(af_indic_script_class)
+  AF_DECLARE_WRITING_SYSTEM_CLASS( af_indic_writing_system_class )
 
 
 /* */
diff --git a/src/3rdparty/freetype/src/autofit/aflatin.c b/src/3rdparty/freetype/src/autofit/aflatin.c
index e6882d5e7b..36a36896fb 100644
--- a/src/3rdparty/freetype/src/autofit/aflatin.c
+++ b/src/3rdparty/freetype/src/autofit/aflatin.c
@@ -2,9 +2,9 @@
 /*                                                                         */
 /*  aflatin.c                                                              */
 /*                                                                         */
-/*    Auto-fitter hinting routines for latin script (body).                */
+/*    Auto-fitter hinting routines for latin writing system (body).        */
 /*                                                                         */
-/*  Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 by                  */
+/*  Copyright 2003-2014 by                                                 */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -18,17 +18,30 @@
 
 #include <ft2build.h>
 #include FT_ADVANCES_H
+#include FT_INTERNAL_DEBUG_H
 
+#include "afglobal.h"
+#include "afpic.h"
 #include "aflatin.h"
 #include "aferrors.h"
 
 
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
 #include "afwarp.h"
 #endif
 
 
   /*************************************************************************/
+  /*                                                                       */
+  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
+  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
+  /* messages during execution.                                            */
+  /*                                                                       */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  trace_aflatin
+
+
+  /*************************************************************************/
   /*************************************************************************/
   /*****                                                               *****/
   /*****            L A T I N   G L O B A L   M E T R I C S            *****/
@@ -36,31 +49,91 @@
   /*************************************************************************/
   /*************************************************************************/
 
+
+  /* Find segments and links, compute all stem widths, and initialize */
+  /* standard width and height for the glyph with given charcode.     */
+
   FT_LOCAL_DEF( void )
   af_latin_metrics_init_widths( AF_LatinMetrics  metrics,
-                                FT_Face          face,
-                                FT_ULong         charcode )
+                                FT_Face          face )
   {
     /* scan the array of segments in each direction */
     AF_GlyphHintsRec  hints[1];
 
 
+    FT_TRACE5(( "\n"
+                "latin standard widths computation (style `%s')\n"
+                "=====================================================\n"
+                "\n",
+                af_style_names[metrics->root.style_class->style] ));
+
     af_glyph_hints_init( hints, face->memory );
 
     metrics->axis[AF_DIMENSION_HORZ].width_count = 0;
     metrics->axis[AF_DIMENSION_VERT].width_count = 0;
 
     {
-      FT_Error             error;
-      FT_UInt              glyph_index;
-      int                  dim;
-      AF_LatinMetricsRec   dummy[1];
-      AF_Scaler            scaler = &dummy->root.scaler;
+      FT_Error            error;
+      FT_ULong            glyph_index;
+      FT_Long             y_offset;
+      int                 dim;
+      AF_LatinMetricsRec  dummy[1];
+      AF_Scaler           scaler = &dummy->root.scaler;
+
+#ifdef FT_CONFIG_OPTION_PIC
+      AF_FaceGlobals  globals = metrics->root.globals;
+#endif
 
+      AF_StyleClass   style_class  = metrics->root.style_class;
+      AF_ScriptClass  script_class = AF_SCRIPT_CLASSES_GET
+                                       [style_class->script];
 
-      glyph_index = FT_Get_Char_Index( face, charcode );
-      if ( glyph_index == 0 )
-        goto Exit;
+      FT_UInt32  standard_char;
+
+
+      /*
+       * We check more than a single standard character to catch features
+       * like `c2sc' (small caps from caps) that don't contain lowercase
+       * letters by definition, or other features that mainly operate on
+       * numerals.
+       */
+
+      standard_char = script_class->standard_char1;
+      af_get_char_index( &metrics->root,
+                         standard_char,
+                         &glyph_index,
+                         &y_offset );
+      if ( !glyph_index )
+      {
+        if ( script_class->standard_char2 )
+        {
+          standard_char = script_class->standard_char2;
+          af_get_char_index( &metrics->root,
+                             standard_char,
+                             &glyph_index,
+                             &y_offset );
+          if ( !glyph_index )
+          {
+            if ( script_class->standard_char3 )
+            {
+              standard_char = script_class->standard_char3;
+              af_get_char_index( &metrics->root,
+                                 standard_char,
+                                 &glyph_index,
+                                 &y_offset );
+              if ( !glyph_index )
+                goto Exit;
+            }
+            else
+              goto Exit;
+          }
+        }
+        else
+          goto Exit;
+      }
+
+      FT_TRACE5(( "standard character: U+%04lX (glyph index %d)\n",
+                  standard_char, glyph_index ));
 
       error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
       if ( error || face->glyph->outline.n_points <= 0 )
@@ -69,15 +142,19 @@
       FT_ZERO( dummy );
 
       dummy->units_per_em = metrics->units_per_em;
-      scaler->x_scale     = scaler->y_scale = 0x10000L;
-      scaler->x_delta     = scaler->y_delta = 0;
+
+      scaler->x_scale = 0x10000L;
+      scaler->y_scale = 0x10000L;
+      scaler->x_delta = 0;
+      scaler->y_delta = 0;
+
       scaler->face        = face;
       scaler->render_mode = FT_RENDER_MODE_NORMAL;
       scaler->flags       = 0;
 
-      af_glyph_hints_rescale( hints, (AF_ScriptMetrics)dummy );
+      af_glyph_hints_rescale( hints, (AF_StyleMetrics)dummy );
 
-      error = af_glyph_hints_reload( hints, &face->glyph->outline, 0 );
+      error = af_glyph_hints_reload( hints, &face->glyph->outline );
       if ( error )
         goto Exit;
 
@@ -94,7 +171,15 @@
         if ( error )
           goto Exit;
 
+        /*
+         *  We assume that the glyphs selected for the stem width
+         *  computation are `featureless' enough so that the linking
+         *  algorithm works fine without adjustments of its scoring
+         *  function.
+         */
         af_latin_hints_link_segments( hints,
+                                      0,
+                                      NULL,
                                       (AF_Dimension)dim );
 
         seg   = axhints->segments;
@@ -115,113 +200,180 @@
               dist = -dist;
 
             if ( num_widths < AF_LATIN_MAX_WIDTHS )
-              axis->widths[ num_widths++ ].org = dist;
+              axis->widths[num_widths++].org = dist;
           }
         }
 
-        af_sort_widths( num_widths, axis->widths );
+        /* this also replaces multiple almost identical stem widths */
+        /* with a single one (the value 100 is heuristic)           */
+        af_sort_and_quantize_widths( &num_widths, axis->widths,
+                                     dummy->units_per_em / 100 );
         axis->width_count = num_widths;
       }
 
-  Exit:
+    Exit:
       for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
       {
         AF_LatinAxis  axis = &metrics->axis[dim];
         FT_Pos        stdw;
 
 
-        stdw = ( axis->width_count > 0 )
-                 ? axis->widths[0].org
-                 : AF_LATIN_CONSTANT( metrics, 50 );
+        stdw = ( axis->width_count > 0 ) ? axis->widths[0].org
+                                         : AF_LATIN_CONSTANT( metrics, 50 );
 
         /* let's try 20% of the smallest width */
         axis->edge_distance_threshold = stdw / 5;
         axis->standard_width          = stdw;
         axis->extra_light             = 0;
-      }
-    }
 
-    af_glyph_hints_done( hints );
-  }
+#ifdef FT_DEBUG_LEVEL_TRACE
+        {
+          FT_UInt  i;
 
 
+          FT_TRACE5(( "%s widths:\n",
+                      dim == AF_DIMENSION_VERT ? "horizontal"
+                                               : "vertical" ));
 
-#define AF_LATIN_MAX_TEST_CHARACTERS  12
+          FT_TRACE5(( "  %d (standard)", axis->standard_width ));
+          for ( i = 1; i < axis->width_count; i++ )
+            FT_TRACE5(( " %d", axis->widths[i].org ));
 
+          FT_TRACE5(( "\n" ));
+        }
+#endif
+      }
+    }
+
+    FT_TRACE5(( "\n" ));
+
+    af_glyph_hints_done( hints );
+  }
 
-  static const char af_latin_blue_chars[AF_LATIN_MAX_BLUES]
-                                       [AF_LATIN_MAX_TEST_CHARACTERS + 1] =
-  {
-    "THEZOCQS",
-    "HEZLOCUS",
-    "fijkdbh",
-    "xzroesc",
-    "xzroesc",
-    "pqgjy"
-  };
 
+  /* Find all blue zones.  Flat segments give the reference points, */
+  /* round segments the overshoot positions.                        */
 
   static void
   af_latin_metrics_init_blues( AF_LatinMetrics  metrics,
                                FT_Face          face )
   {
-    FT_Pos        flats [AF_LATIN_MAX_TEST_CHARACTERS];
-    FT_Pos        rounds[AF_LATIN_MAX_TEST_CHARACTERS];
+    FT_Pos        flats [AF_BLUE_STRING_MAX_LEN];
+    FT_Pos        rounds[AF_BLUE_STRING_MAX_LEN];
+
     FT_Int        num_flats;
     FT_Int        num_rounds;
-    FT_Int        bb;
+
     AF_LatinBlue  blue;
     FT_Error      error;
-    AF_LatinAxis  axis  = &metrics->axis[AF_DIMENSION_VERT];
-    FT_GlyphSlot  glyph = face->glyph;
+    AF_LatinAxis  axis = &metrics->axis[AF_DIMENSION_VERT];
+    FT_Outline    outline;
+
+    AF_StyleClass  sc = metrics->root.style_class;
 
+    AF_Blue_Stringset         bss = sc->blue_stringset;
+    const AF_Blue_StringRec*  bs  = &af_blue_stringsets[bss];
 
-    /* we compute the blues simply by loading each character from the    */
-    /* 'af_latin_blue_chars[blues]' string, then compute its top-most or */
-    /* bottom-most points (depending on `AF_IS_TOP_BLUE')                */
 
-    AF_LOG(( "blue zones computation\n" ));
-    AF_LOG(( "------------------------------------------------\n" ));
+    /* we walk over the blue character strings as specified in the */
+    /* style's entry in the `af_blue_stringset' array              */
 
-    for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ )
+    FT_TRACE5(( "latin blue zones computation\n"
+                "============================\n"
+                "\n" ));
+
+    for ( ; bs->string != AF_BLUE_STRING_MAX; bs++ )
     {
-      const char*  p     = af_latin_blue_chars[bb];
-      const char*  limit = p + AF_LATIN_MAX_TEST_CHARACTERS;
+      const char*  p = &af_blue_strings[bs->string];
       FT_Pos*      blue_ref;
       FT_Pos*      blue_shoot;
 
 
-      AF_LOG(( "blue %3d: ", bb ));
+#ifdef FT_DEBUG_LEVEL_TRACE
+      {
+        FT_Bool  have_flag = 0;
+
+
+        FT_TRACE5(( "blue zone %d", axis->blue_count ));
+
+        if ( bs->properties )
+        {
+          FT_TRACE5(( " (" ));
+
+          if ( AF_LATIN_IS_TOP_BLUE( bs ) )
+          {
+            FT_TRACE5(( "top" ));
+            have_flag = 1;
+          }
+
+          if ( AF_LATIN_IS_NEUTRAL_BLUE( bs ) )
+          {
+            if ( have_flag )
+              FT_TRACE5(( ", " ));
+            FT_TRACE5(( "neutral" ));
+            have_flag = 1;
+          }
+
+          if ( AF_LATIN_IS_X_HEIGHT_BLUE( bs ) )
+          {
+            if ( have_flag )
+              FT_TRACE5(( ", " ));
+            FT_TRACE5(( "small top" ));
+            have_flag = 1;
+          }
+
+          if ( AF_LATIN_IS_LONG_BLUE( bs ) )
+          {
+            if ( have_flag )
+              FT_TRACE5(( ", " ));
+            FT_TRACE5(( "long" ));
+          }
+
+          FT_TRACE5(( ")" ));
+        }
+
+        FT_TRACE5(( ":\n" ));
+      }
+#endif /* FT_DEBUG_LEVEL_TRACE */
 
       num_flats  = 0;
       num_rounds = 0;
 
-      for ( ; p < limit && *p; p++ )
+      while ( *p )
       {
-        FT_UInt     glyph_index;
-        FT_Pos      best_y; /* same as points.y */
-        FT_Int      best_point, best_first, best_last;
+        FT_ULong    ch;
+        FT_ULong    glyph_index;
+        FT_Long     y_offset;
+        FT_Pos      best_y;                            /* same as points.y */
+        FT_Int      best_point, best_contour_first, best_contour_last;
         FT_Vector*  points;
         FT_Bool     round = 0;
 
 
-        AF_LOG(( "'%c'", *p ));
+        GET_UTF8_CHAR( ch, p );
 
         /* load the character in the face -- skip unknown or empty ones */
-        glyph_index = FT_Get_Char_Index( face, (FT_UInt)*p );
+        af_get_char_index( &metrics->root, ch, &glyph_index, &y_offset );
         if ( glyph_index == 0 )
+        {
+          FT_TRACE5(( "  U+%04lX unavailable\n", ch ));
           continue;
+        }
 
-        error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
-        if ( error || glyph->outline.n_points <= 0 )
+        error   = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
+        outline = face->glyph->outline;
+        if ( error || outline.n_points <= 0 )
+        {
+          FT_TRACE5(( "  U+%04lX contains no outlines\n", ch ));
           continue;
+        }
 
         /* now compute min or max point indices and coordinates */
-        points      = glyph->outline.points;
-        best_point  = -1;
-        best_y      = 0;  /* make compiler happy */
-        best_first  = 0;  /* ditto */
-        best_last   = 0;  /* ditto */
+        points             = outline.points;
+        best_point         = -1;
+        best_y             = 0;  /* make compiler happy */
+        best_contour_first = 0;  /* ditto */
+        best_contour_last  = 0;  /* ditto */
 
         {
           FT_Int  nn;
@@ -229,21 +381,21 @@
           FT_Int  last  = -1;
 
 
-          for ( nn = 0; nn < glyph->outline.n_contours; first = last+1, nn++ )
+          for ( nn = 0; nn < outline.n_contours; first = last + 1, nn++ )
           {
             FT_Int  old_best_point = best_point;
             FT_Int  pp;
 
 
-            last = glyph->outline.contours[nn];
+            last = outline.contours[nn];
 
             /* Avoid single-point contours since they are never rasterized. */
             /* In some fonts, they correspond to mark attachment points     */
-            /* which are way outside of the glyph's real outline.           */
+            /* that are way outside of the glyph's real outline.            */
             if ( last <= first )
-                continue;
+              continue;
 
-            if ( AF_LATIN_IS_TOP_BLUE( bb ) )
+            if ( AF_LATIN_IS_TOP_BLUE( bs ) )
             {
               for ( pp = first; pp <= last; pp++ )
                 if ( best_point < 0 || points[pp].y > best_y )
@@ -264,11 +416,10 @@
 
             if ( best_point != old_best_point )
             {
-              best_first = first;
-              best_last  = last;
+              best_contour_first = first;
+              best_contour_last  = last;
             }
           }
-          AF_LOG(( "%5d", best_y ));
         }
 
         /* now check whether the point belongs to a straight or round   */
@@ -276,47 +427,297 @@
         /* lies, then inspect its previous and next points              */
         if ( best_point >= 0 )
         {
+          FT_Pos  best_x = points[best_point].x;
           FT_Int  prev, next;
+          FT_Int  best_segment_first, best_segment_last;
+          FT_Int  best_on_point_first, best_on_point_last;
           FT_Pos  dist;
 
 
-          /* now look for the previous and next points that are not on the */
-          /* same Y coordinate.  Threshold the `closeness'...              */
+          best_segment_first = best_point;
+          best_segment_last  = best_point;
+
+          if ( FT_CURVE_TAG( outline.tags[best_point] ) == FT_CURVE_TAG_ON )
+          {
+            best_on_point_first = best_point;
+            best_on_point_last  = best_point;
+          }
+          else
+          {
+            best_on_point_first = -1;
+            best_on_point_last  = -1;
+          }
+
+          /* look for the previous and next points on the contour  */
+          /* that are not on the same Y coordinate, then threshold */
+          /* the `closeness'...                                    */
           prev = best_point;
           next = prev;
 
           do
           {
-            if ( prev > best_first )
+            if ( prev > best_contour_first )
               prev--;
             else
-              prev = best_last;
+              prev = best_contour_last;
 
-            dist = points[prev].y - best_y;
-            if ( dist < -5 || dist > 5 )
-              break;
+            dist = FT_ABS( points[prev].y - best_y );
+            /* accept a small distance or a small angle (both values are */
+            /* heuristic; value 20 corresponds to approx. 2.9 degrees)   */
+            if ( dist > 5 )
+              if ( FT_ABS( points[prev].x - best_x ) <= 20 * dist )
+                break;
+
+            best_segment_first = prev;
+
+            if ( FT_CURVE_TAG( outline.tags[prev] ) == FT_CURVE_TAG_ON )
+            {
+              best_on_point_first = prev;
+              if ( best_on_point_last < 0 )
+                best_on_point_last = prev;
+            }
 
           } while ( prev != best_point );
 
           do
           {
-            if ( next < best_last )
+            if ( next < best_contour_last )
               next++;
             else
-              next = best_first;
+              next = best_contour_first;
 
-            dist = points[next].y - best_y;
-            if ( dist < -5 || dist > 5 )
-              break;
+            dist = FT_ABS( points[next].y - best_y );
+            if ( dist > 5 )
+              if ( FT_ABS( points[next].x - best_x ) <= 20 * dist )
+                break;
+
+            best_segment_last = next;
+
+            if ( FT_CURVE_TAG( outline.tags[next] ) == FT_CURVE_TAG_ON )
+            {
+              best_on_point_last = next;
+              if ( best_on_point_first < 0 )
+                best_on_point_first = next;
+            }
 
           } while ( next != best_point );
 
-          /* now, set the `round' flag depending on the segment's kind */
-          round = FT_BOOL(
-            FT_CURVE_TAG( glyph->outline.tags[prev] ) != FT_CURVE_TAG_ON ||
-            FT_CURVE_TAG( glyph->outline.tags[next] ) != FT_CURVE_TAG_ON );
+          if ( AF_LATIN_IS_LONG_BLUE( bs ) )
+          {
+            /* If this flag is set, we have an additional constraint to  */
+            /* get the blue zone distance: Find a segment of the topmost */
+            /* (or bottommost) contour that is longer than a heuristic   */
+            /* threshold.  This ensures that small bumps in the outline  */
+            /* are ignored (for example, the `vertical serifs' found in  */
+            /* many Hebrew glyph designs).                               */
+
+            /* If this segment is long enough, we are done.  Otherwise,  */
+            /* search the segment next to the extremum that is long      */
+            /* enough, has the same direction, and a not too large       */
+            /* vertical distance from the extremum.  Note that the       */
+            /* algorithm doesn't check whether the found segment is      */
+            /* actually the one (vertically) nearest to the extremum.    */
+
+            /* heuristic threshold value */
+            FT_Pos  length_threshold = metrics->units_per_em / 25;
+
+
+            dist = FT_ABS( points[best_segment_last].x -
+                             points[best_segment_first].x );
+
+            if ( dist < length_threshold                       &&
+                 best_segment_last - best_segment_first + 2 <=
+                   best_contour_last - best_contour_first      )
+            {
+              /* heuristic threshold value */
+              FT_Pos  height_threshold = metrics->units_per_em / 4;
+
+              FT_Int   first;
+              FT_Int   last;
+              FT_Bool  hit;
+
+              /* we intentionally declare these two variables        */
+              /* outside of the loop since various compilers emit    */
+              /* incorrect warning messages otherwise, talking about */
+              /* `possibly uninitialized variables'                  */
+              FT_Int  p_first = 0;            /* make compiler happy */
+              FT_Int  p_last  = 0;
+
+              FT_Bool  left2right;
+
+
+              /* compute direction */
+              prev = best_point;
+
+              do
+              {
+                if ( prev > best_contour_first )
+                  prev--;
+                else
+                  prev = best_contour_last;
+
+                if ( points[prev].x != best_x )
+                  break;
+
+              } while ( prev != best_point );
+
+              /* skip glyph for the degenerate case */
+              if ( prev == best_point )
+                continue;
+
+              left2right = FT_BOOL( points[prev].x < points[best_point].x );
+
+              first = best_segment_last;
+              last  = first;
+              hit   = 0;
+
+              do
+              {
+                FT_Bool  l2r;
+                FT_Pos   d;
+
+
+                if ( !hit )
+                {
+                  /* no hit; adjust first point */
+                  first = last;
+
+                  /* also adjust first and last on point */
+                  if ( FT_CURVE_TAG( outline.tags[first] ) ==
+                         FT_CURVE_TAG_ON )
+                  {
+                    p_first = first;
+                    p_last  = first;
+                  }
+                  else
+                  {
+                    p_first = -1;
+                    p_last  = -1;
+                  }
+
+                  hit = 1;
+                }
+
+                if ( last < best_contour_last )
+                  last++;
+                else
+                  last = best_contour_first;
+
+                if ( FT_ABS( best_y - points[first].y ) > height_threshold )
+                {
+                  /* vertical distance too large */
+                  hit = 0;
+                  continue;
+                }
+
+                /* same test as above */
+                dist = FT_ABS( points[last].y - points[first].y );
+                if ( dist > 5 )
+                  if ( FT_ABS( points[last].x - points[first].x ) <=
+                         20 * dist )
+                  {
+                    hit = 0;
+                    continue;
+                  }
+
+                if ( FT_CURVE_TAG( outline.tags[last] ) == FT_CURVE_TAG_ON )
+                {
+                  p_last = last;
+                  if ( p_first < 0 )
+                    p_first = last;
+                }
+
+                l2r = FT_BOOL( points[first].x < points[last].x );
+                d   = FT_ABS( points[last].x - points[first].x );
+
+                if ( l2r == left2right     &&
+                     d >= length_threshold )
+                {
+                  /* all constraints are met; update segment after finding */
+                  /* its end                                               */
+                  do
+                  {
+                    if ( last < best_contour_last )
+                      last++;
+                    else
+                      last = best_contour_first;
+
+                    d = FT_ABS( points[last].y - points[first].y );
+                    if ( d > 5 )
+                      if ( FT_ABS( points[next].x - points[first].x ) <=
+                             20 * dist )
+                      {
+                        if ( last > best_contour_first )
+                          last--;
+                        else
+                          last = best_contour_last;
+                        break;
+                      }
+
+                    p_last = last;
+
+                    if ( FT_CURVE_TAG( outline.tags[last] ) ==
+                           FT_CURVE_TAG_ON )
+                    {
+                      p_last = last;
+                      if ( p_first < 0 )
+                        p_first = last;
+                    }
+
+                  } while ( last != best_segment_first );
+
+                  best_y = points[first].y;
+
+                  best_segment_first = first;
+                  best_segment_last  = last;
+
+                  best_on_point_first = p_first;
+                  best_on_point_last  = p_last;
+
+                  break;
+                }
+
+              } while ( last != best_segment_first );
+            }
+          }
+
+          /* for computing blue zones, we add the y offset as returned */
+          /* by the currently used OpenType feature -- for example,    */
+          /* superscript glyphs might be identical to subscript glyphs */
+          /* with a vertical shift                                     */
+          best_y += y_offset;
+
+          FT_TRACE5(( "  U+%04lX: best_y = %5ld", ch, best_y ));
+
+          /* now set the `round' flag depending on the segment's kind: */
+          /*                                                           */
+          /* - if the horizontal distance between the first and last   */
+          /*   `on' point is larger than upem/8 (value 8 is heuristic) */
+          /*   we have a flat segment                                  */
+          /* - if either the first or the last point of the segment is */
+          /*   an `off' point, the segment is round, otherwise it is   */
+          /*   flat                                                    */
+          if ( best_on_point_first >= 0                               &&
+               best_on_point_last >= 0                                &&
+               (FT_UInt)( FT_ABS( points[best_on_point_last].x -
+                                  points[best_on_point_first].x ) ) >
+                 metrics->units_per_em / 8                            )
+            round = 0;
+          else
+            round = FT_BOOL(
+                      FT_CURVE_TAG( outline.tags[best_segment_first] ) !=
+                        FT_CURVE_TAG_ON                                   ||
+                      FT_CURVE_TAG( outline.tags[best_segment_last]  ) !=
+                        FT_CURVE_TAG_ON                                   );
 
-          AF_LOG(( "%c ", round ? 'r' : 'f' ));
+          if ( round && AF_LATIN_IS_NEUTRAL_BLUE( bs ) )
+          {
+            /* only use flat segments for a neutral blue zone */
+            FT_TRACE5(( " (round, skipped)\n" ));
+            continue;
+          }
+
+          FT_TRACE5(( " (%s)\n", round ? "round" : "flat" ));
         }
 
         if ( round )
@@ -325,15 +726,13 @@
           flats[num_flats++]   = best_y;
       }
 
-      AF_LOG(( "\n" ));
-
       if ( num_flats == 0 && num_rounds == 0 )
       {
         /*
          *  we couldn't find a single glyph to compute this blue zone,
          *  we will simply ignore it then
          */
-        AF_LOG(( "empty\n" ));
+        FT_TRACE5(( "  empty\n" ));
         continue;
       }
 
@@ -343,9 +742,9 @@
       af_sort_pos( num_rounds, rounds );
       af_sort_pos( num_flats,  flats );
 
-      blue       = & axis->blues[axis->blue_count];
-      blue_ref   = & blue->ref.org;
-      blue_shoot = & blue->shoot.org;
+      blue       = &axis->blues[axis->blue_count];
+      blue_ref   = &blue->ref.org;
+      blue_shoot = &blue->shoot.org;
 
       axis->blue_count++;
 
@@ -361,7 +760,7 @@
       }
       else
       {
-        *blue_ref   = flats[num_flats / 2];
+        *blue_ref   = flats [num_flats  / 2];
         *blue_shoot = rounds[num_rounds / 2];
       }
 
@@ -375,29 +774,43 @@
         FT_Bool  over_ref = FT_BOOL( shoot > ref );
 
 
-        if ( AF_LATIN_IS_TOP_BLUE( bb ) ^ over_ref )
-          *blue_shoot = *blue_ref = ( shoot + ref ) / 2;
+        if ( AF_LATIN_IS_TOP_BLUE( bs ) ^ over_ref )
+        {
+          *blue_ref   =
+          *blue_shoot = ( shoot + ref ) / 2;
+
+          FT_TRACE5(( "  [overshoot smaller than reference,"
+                      " taking mean value]\n" ));
+        }
       }
 
       blue->flags = 0;
-      if ( AF_LATIN_IS_TOP_BLUE( bb ) )
+      if ( AF_LATIN_IS_TOP_BLUE( bs ) )
         blue->flags |= AF_LATIN_BLUE_TOP;
+      if ( AF_LATIN_IS_NEUTRAL_BLUE( bs ) )
+        blue->flags |= AF_LATIN_BLUE_NEUTRAL;
 
       /*
        * The following flag is used later to adjust the y and x scales
        * in order to optimize the pixel grid alignment of the top of small
        * letters.
        */
-      if ( bb == AF_LATIN_BLUE_SMALL_TOP )
+      if ( AF_LATIN_IS_X_HEIGHT_BLUE( bs ) )
         blue->flags |= AF_LATIN_BLUE_ADJUSTMENT;
 
-      AF_LOG(( "-- ref = %ld, shoot = %ld\n", *blue_ref, *blue_shoot ));
+      FT_TRACE5(( "    -> reference = %ld\n"
+                  "       overshoot = %ld\n",
+                  *blue_ref, *blue_shoot ));
     }
 
+    FT_TRACE5(( "\n" ));
+
     return;
   }
 
 
+  /* Check whether all ASCII digits have the same advance width. */
+
   FT_LOCAL_DEF( void )
   af_latin_metrics_check_digits( AF_LatinMetrics  metrics,
                                  FT_Face          face )
@@ -407,14 +820,14 @@
     FT_Fixed  advance, old_advance = 0;
 
 
-    /* check whether all ASCII digits have the same advance width; */
-    /* digit `0' is 0x30 in all supported charmaps                 */
+    /* digit `0' is 0x30 in all supported charmaps */
     for ( i = 0x30; i <= 0x39; i++ )
     {
-      FT_UInt  glyph_index;
+      FT_ULong  glyph_index;
+      FT_Long   y_offset;
 
 
-      glyph_index = FT_Get_Char_Index( face, i );
+      af_get_char_index( &metrics->root, i, &glyph_index, &y_offset );
       if ( glyph_index == 0 )
         continue;
 
@@ -444,47 +857,32 @@
   }
 
 
+  /* Initialize global metrics. */
+
   FT_LOCAL_DEF( FT_Error )
   af_latin_metrics_init( AF_LatinMetrics  metrics,
                          FT_Face          face )
   {
-    FT_Error    error = AF_Err_Ok;
     FT_CharMap  oldmap = face->charmap;
-    FT_UInt     ee;
-
-    static const FT_Encoding  latin_encodings[] =
-    {
-      FT_ENCODING_UNICODE,
-      FT_ENCODING_APPLE_ROMAN,
-      FT_ENCODING_ADOBE_STANDARD,
-      FT_ENCODING_ADOBE_LATIN_1,
-      FT_ENCODING_NONE  /* end of list */
-    };
 
 
     metrics->units_per_em = face->units_per_EM;
 
-    /* do we have a latin charmap in there? */
-    for ( ee = 0; latin_encodings[ee] != FT_ENCODING_NONE; ee++ )
-    {
-      error = FT_Select_Charmap( face, latin_encodings[ee] );
-      if ( !error )
-        break;
-    }
-
-    if ( !error )
+    if ( !FT_Select_Charmap( face, FT_ENCODING_UNICODE ) )
     {
-      /* For now, compute the standard width and height from the `o'. */
-      af_latin_metrics_init_widths( metrics, face, 'o' );
+      af_latin_metrics_init_widths( metrics, face );
       af_latin_metrics_init_blues( metrics, face );
       af_latin_metrics_check_digits( metrics, face );
     }
 
     FT_Set_Charmap( face, oldmap );
-    return AF_Err_Ok;
+    return FT_Err_Ok;
   }
 
 
+  /* Adjust scaling value, then scale and shift widths   */
+  /* and blue zones (if applicable) for given dimension. */
+
   static void
   af_latin_metrics_scale_dim( AF_LatinMetrics  metrics,
                               AF_Scaler        scaler,
@@ -535,9 +933,26 @@
 
       if ( blue )
       {
-        FT_Pos  scaled = FT_MulFix( blue->shoot.org, scaler->y_scale );
-        FT_Pos  fitted = ( scaled + 40 ) & ~63;
+        FT_Pos   scaled;
+        FT_Pos   threshold;
+        FT_Pos   fitted;
+        FT_UInt  limit;
+        FT_UInt  ppem;
+
+
+        scaled    = FT_MulFix( blue->shoot.org, scaler->y_scale );
+        ppem      = metrics->root.scaler.face->size->metrics.x_ppem;
+        limit     = metrics->root.globals->increase_x_height;
+        threshold = 40;
 
+        /* if the `increase-x-height' property is active, */
+        /* we round up much more often                    */
+        if ( limit                                 &&
+             ppem <= limit                         &&
+             ppem >= AF_PROP_INCREASE_X_HEIGHT_MIN )
+          threshold = 52;
+
+        fitted = ( scaled + threshold ) & ~63;
 
         if ( scaled != fitted )
         {
@@ -552,6 +967,17 @@
           if ( dim == AF_DIMENSION_VERT )
           {
             scale = FT_MulDiv( scale, fitted, scaled );
+
+            FT_TRACE5((
+              "af_latin_metrics_scale_dim:"
+              " x height alignment (style `%s'):\n"
+              "                           "
+              " vertical scaling changed from %.4f to %.4f (by %d%%)\n"
+              "\n",
+              af_style_names[metrics->root.style_class->style],
+              axis->org_scale / 65536.0,
+              scale / 65536.0,
+              ( fitted - scaled ) * 100 / scaled ));
           }
         }
       }
@@ -571,7 +997,11 @@
       metrics->root.scaler.y_delta = delta;
     }
 
-    /* scale the standard widths */
+    FT_TRACE5(( "%s widths (style `%s')\n",
+                dim == AF_DIMENSION_HORZ ? "horizontal" : "vertical",
+                af_style_names[metrics->root.style_class->style] ));
+
+    /* scale the widths */
     for ( nn = 0; nn < axis->width_count; nn++ )
     {
       AF_Width  width = axis->widths + nn;
@@ -579,15 +1009,31 @@
 
       width->cur = FT_MulFix( width->org, scale );
       width->fit = width->cur;
+
+      FT_TRACE5(( "  %d scaled to %.2f\n",
+                  width->org,
+                  width->cur / 64.0 ));
     }
 
+    FT_TRACE5(( "\n" ));
+
     /* an extra-light axis corresponds to a standard width that is */
-    /* smaller than 0.75 pixels                                    */
+    /* smaller than 5/8 pixels                                     */
     axis->extra_light =
       (FT_Bool)( FT_MulFix( axis->standard_width, scale ) < 32 + 8 );
 
+#ifdef FT_DEBUG_LEVEL_TRACE
+    if ( axis->extra_light )
+      FT_TRACE5(( "`%s' style is extra light (at current resolution)\n"
+                  "\n",
+                  af_style_names[metrics->root.style_class->style] ));
+#endif
+
     if ( dim == AF_DIMENSION_VERT )
     {
+      FT_TRACE5(( "blue zones (style `%s')\n",
+                  af_style_names[metrics->root.style_class->style] ));
+
       /* scale the blue zones */
       for ( nn = 0; nn < axis->blue_count; nn++ )
       {
@@ -605,9 +1051,17 @@
         dist = FT_MulFix( blue->ref.org - blue->shoot.org, scale );
         if ( dist <= 48 && dist >= -48 )
         {
-          FT_Pos  delta1, delta2;
+#if 0
+          FT_Pos  delta1;
+#endif
+          FT_Pos  delta2;
+
 
+          /* use discrete values for blue zone widths */
 
+#if 0
+
+          /* generic, original code */
           delta1 = blue->shoot.org - blue->ref.org;
           delta2 = delta1;
           if ( delta1 < 0 )
@@ -628,19 +1082,57 @@
           blue->ref.fit   = FT_PIX_ROUND( blue->ref.cur );
           blue->shoot.fit = blue->ref.fit + delta2;
 
+#else
+
+          /* simplified version due to abs(dist) <= 48 */
+          delta2 = dist;
+          if ( dist < 0 )
+            delta2 = -delta2;
+
+          if ( delta2 < 32 )
+            delta2 = 0;
+          else if ( delta2 < 48 )
+            delta2 = 32;
+          else
+            delta2 = 64;
+
+          if ( dist < 0 )
+            delta2 = -delta2;
+
+          blue->ref.fit   = FT_PIX_ROUND( blue->ref.cur );
+          blue->shoot.fit = blue->ref.fit - delta2;
+
+#endif
+
           blue->flags |= AF_LATIN_BLUE_ACTIVE;
+
+          FT_TRACE5(( "  reference %d: %d scaled to %.2f%s\n"
+                      "  overshoot %d: %d scaled to %.2f%s\n",
+                      nn,
+                      blue->ref.org,
+                      blue->ref.fit / 64.0,
+                      blue->flags & AF_LATIN_BLUE_ACTIVE ? ""
+                                                         : " (inactive)",
+                      nn,
+                      blue->shoot.org,
+                      blue->shoot.fit / 64.0,
+                      blue->flags & AF_LATIN_BLUE_ACTIVE ? ""
+                                                         : " (inactive)" ));
         }
       }
     }
   }
 
 
+  /* Scale global values in both directions. */
+
   FT_LOCAL_DEF( void )
   af_latin_metrics_scale( AF_LatinMetrics  metrics,
                           AF_Scaler        scaler )
   {
     metrics->root.scaler.render_mode = scaler->render_mode;
     metrics->root.scaler.face        = scaler->face;
+    metrics->root.scaler.flags       = scaler->flags;
 
     af_latin_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ );
     af_latin_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT );
@@ -655,18 +1147,21 @@
   /*************************************************************************/
   /*************************************************************************/
 
+
+  /* Walk over all contours and compute its segments. */
+
   FT_LOCAL_DEF( FT_Error )
   af_latin_hints_compute_segments( AF_GlyphHints  hints,
                                    AF_Dimension   dim )
   {
-    AF_AxisHints  axis          = &hints->axis[dim];
-    FT_Memory     memory        = hints->memory;
-    FT_Error      error         = AF_Err_Ok;
-    AF_Segment    segment       = NULL;
-    AF_SegmentRec seg0;
-    AF_Point*     contour       = hints->contours;
-    AF_Point*     contour_limit = contour + hints->num_contours;
-    AF_Direction  major_dir, segment_dir;
+    AF_AxisHints   axis          = &hints->axis[dim];
+    FT_Memory      memory        = hints->memory;
+    FT_Error       error         = FT_Err_Ok;
+    AF_Segment     segment       = NULL;
+    AF_SegmentRec  seg0;
+    AF_Point*      contour       = hints->contours;
+    AF_Point*      contour_limit = contour + hints->num_contours;
+    AF_Direction   major_dir, segment_dir;
 
 
     FT_ZERO( &seg0 );
@@ -762,7 +1257,7 @@
             /* a segment is round if either its first or last point */
             /* is a control point                                   */
             if ( ( segment->first->flags | point->flags ) &
-                   AF_FLAG_CONTROL                        )
+                 AF_FLAG_CONTROL                          )
               segment->flags |= AF_EDGE_ROUND;
 
             /* compute segment size */
@@ -781,7 +1276,7 @@
 
             on_edge = 0;
             segment = NULL;
-            /* fallthrough */
+            /* fall through */
           }
         }
 
@@ -798,18 +1293,19 @@
           /* this is the start of a new segment! */
           segment_dir = (AF_Direction)point->out_dir;
 
-          /* clear all segment fields */
           error = af_axis_hints_new_segment( axis, memory, &segment );
           if ( error )
             goto Exit;
 
-          segment[0]        = seg0;
+          /* clear all segment fields */
+          segment[0] = seg0;
+
           segment->dir      = (FT_Char)segment_dir;
           min_pos = max_pos = point->u;
           segment->first    = point;
           segment->last     = point;
-          segment->contour  = contour;
-          on_edge           = 1;
+
+          on_edge = 1;
         }
 
         point = point->next;
@@ -818,8 +1314,8 @@
     } /* contours */
 
 
-    /* now slightly increase the height of segments when this makes */
-    /* sense -- this is used to better detect and ignore serifs     */
+    /* now slightly increase the height of segments if this makes */
+    /* sense -- this is used to better detect and ignore serifs   */
     {
       AF_Segment  segments     = axis->segments;
       AF_Segment  segments_end = segments + axis->num_segments;
@@ -833,9 +1329,6 @@
         FT_Pos    last_v  = last->v;
 
 
-        if ( first == last )
-          continue;
-
         if ( first_v < last_v )
         {
           AF_Point  p;
@@ -874,76 +1367,129 @@
   }
 
 
+  /* Link segments to form stems and serifs.  If `width_count' and      */
+  /* `widths' are non-zero, use them to fine-tune the scoring function. */
+
   FT_LOCAL_DEF( void )
   af_latin_hints_link_segments( AF_GlyphHints  hints,
+                                FT_UInt        width_count,
+                                AF_WidthRec*   widths,
                                 AF_Dimension   dim )
   {
     AF_AxisHints  axis          = &hints->axis[dim];
     AF_Segment    segments      = axis->segments;
     AF_Segment    segment_limit = segments + axis->num_segments;
-    FT_Pos        len_threshold, len_score;
+    FT_Pos        len_threshold, len_score, dist_score, max_width;
     AF_Segment    seg1, seg2;
 
 
+    if ( width_count )
+      max_width = widths[width_count - 1].org;
+    else
+      max_width = 0;
+
+    /* a heuristic value to set up a minimum value for overlapping */
     len_threshold = AF_LATIN_CONSTANT( hints->metrics, 8 );
     if ( len_threshold == 0 )
       len_threshold = 1;
 
+    /* a heuristic value to weight lengths */
     len_score = AF_LATIN_CONSTANT( hints->metrics, 6000 );
 
+    /* a heuristic value to weight distances (no call to    */
+    /* AF_LATIN_CONSTANT needed, since we work on multiples */
+    /* of the stem width)                                   */
+    dist_score = 3000;
+
     /* now compare each segment to the others */
     for ( seg1 = segments; seg1 < segment_limit; seg1++ )
     {
-      /* the fake segments are introduced to hint the metrics -- */
-      /* we must never link them to anything                     */
-      if ( seg1->dir != axis->major_dir || seg1->first == seg1->last )
+      if ( seg1->dir != axis->major_dir )
         continue;
 
+      /* search for stems having opposite directions, */
+      /* with seg1 to the `left' of seg2              */
       for ( seg2 = segments; seg2 < segment_limit; seg2++ )
-        if ( seg1->dir + seg2->dir == 0 && seg2->pos > seg1->pos )
+      {
+        FT_Pos  pos1 = seg1->pos;
+        FT_Pos  pos2 = seg2->pos;
+
+
+        if ( seg1->dir + seg2->dir == 0 && pos2 > pos1 )
         {
-          FT_Pos  pos1 = seg1->pos;
-          FT_Pos  pos2 = seg2->pos;
-          FT_Pos  dist = pos2 - pos1;
+          /* compute distance between the two segments */
+          FT_Pos  min = seg1->min_coord;
+          FT_Pos  max = seg1->max_coord;
+          FT_Pos  len;
 
 
-          if ( dist < 0 )
-            dist = -dist;
+          if ( min < seg2->min_coord )
+            min = seg2->min_coord;
+
+          if ( max > seg2->max_coord )
+            max = seg2->max_coord;
 
+          /* compute maximum coordinate difference of the two segments */
+          /* (this is, how much they overlap)                          */
+          len = max - min;
+          if ( len >= len_threshold )
           {
-            FT_Pos  min = seg1->min_coord;
-            FT_Pos  max = seg1->max_coord;
-            FT_Pos  len, score;
+            /*
+             *  The score is the sum of two demerits indicating the
+             *  `badness' of a fit, measured along the segments' main axis
+             *  and orthogonal to it, respectively.
+             *
+             *  o The less overlapping along the main axis, the worse it
+             *    is, causing a larger demerit.
+             *
+             *  o The nearer the orthogonal distance to a stem width, the
+             *    better it is, causing a smaller demerit.  For simplicity,
+             *    however, we only increase the demerit for values that
+             *    exceed the largest stem width.
+             */
+
+            FT_Pos  dist = pos2 - pos1;
+
+            FT_Pos  dist_demerit, score;
+
+
+            if ( max_width )
+            {
+              /* distance demerits are based on multiples of `max_width'; */
+              /* we scale by 1024 for getting more precision              */
+              FT_Pos  delta = ( dist << 10 ) / max_width - ( 1 << 10 );
 
 
-            if ( min < seg2->min_coord )
-              min = seg2->min_coord;
+              if ( delta > 10000 )
+                dist_demerit = 32000;
+              else if ( delta > 0 )
+                dist_demerit = delta * delta / dist_score;
+              else
+                dist_demerit = 0;
+            }
+            else
+              dist_demerit = dist; /* default if no widths available */
 
-            if ( max > seg2->max_coord )
-              max = seg2->max_coord;
+            score = dist_demerit + len_score / len;
 
-            len = max - min;
-            if ( len >= len_threshold )
+            /* and we search for the smallest score */
+            if ( score < seg1->score )
             {
-              score = dist + len_score / len;
-
-              if ( score < seg1->score )
-              {
-                seg1->score = score;
-                seg1->link  = seg2;
-              }
+              seg1->score = score;
+              seg1->link  = seg2;
+            }
 
-              if ( score < seg2->score )
-              {
-                seg2->score = score;
-                seg2->link  = seg1;
-              }
+            if ( score < seg2->score )
+            {
+              seg2->score = score;
+              seg2->link  = seg1;
             }
           }
         }
+      }
     }
 
-    /* now, compute the `serif' segments */
+    /* now compute the `serif' segments, cf. explanations in `afhints.h' */
     for ( seg1 = segments; seg1 < segment_limit; seg1++ )
     {
       seg2 = seg1->link;
@@ -960,12 +1506,14 @@
   }
 
 
+  /* Link segments to edges, using feature analysis for selection. */
+
   FT_LOCAL_DEF( FT_Error )
   af_latin_hints_compute_edges( AF_GlyphHints  hints,
                                 AF_Dimension   dim )
   {
     AF_AxisHints  axis   = &hints->axis[dim];
-    FT_Error      error  = AF_Err_Ok;
+    FT_Error      error  = FT_Err_Ok;
     FT_Memory     memory = hints->memory;
     AF_LatinAxis  laxis  = &((AF_LatinMetrics)hints->metrics)->axis[dim];
 
@@ -973,7 +1521,9 @@
     AF_Segment    segment_limit = segments + axis->num_segments;
     AF_Segment    seg;
 
+#if 0
     AF_Direction  up_dir;
+#endif
     FT_Fixed      scale;
     FT_Pos        edge_distance_threshold;
     FT_Pos        segment_length_threshold;
@@ -984,11 +1534,13 @@
     scale = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale
                                          : hints->y_scale;
 
+#if 0
     up_dir = ( dim == AF_DIMENSION_HORZ ) ? AF_DIR_UP
                                           : AF_DIR_RIGHT;
+#endif
 
     /*
-     *  We ignore all segments that are less than 1 pixels in length,
+     *  We ignore all segments that are less than 1 pixel in length
      *  to avoid many problems with serif fonts.  We compute the
      *  corresponding threshold in font units.
      */
@@ -999,20 +1551,21 @@
 
     /*********************************************************************/
     /*                                                                   */
-    /* We will begin by generating a sorted table of edges for the       */
-    /* current direction.  To do so, we simply scan each segment and try */
-    /* to find an edge in our table that corresponds to its position.    */
+    /* We begin by generating a sorted table of edges for the current    */
+    /* direction.  To do so, we simply scan each segment and try to find */
+    /* an edge in our table that corresponds to its position.            */
     /*                                                                   */
     /* If no edge is found, we create and insert a new edge in the       */
     /* sorted table.  Otherwise, we simply add the segment to the edge's */
-    /* list which will be processed in the second step to compute the    */
+    /* list which gets processed in the second step to compute the       */
     /* edge's properties.                                                */
     /*                                                                   */
-    /* Note that the edges table is sorted along the segment/edge        */
+    /* Note that the table of edges is sorted along the segment/edge     */
     /* position.                                                         */
     /*                                                                   */
     /*********************************************************************/
 
+    /* assure that edge distance threshold is at most 0.25px */
     edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold,
                                          scale );
     if ( edge_distance_threshold > 64 / 4 )
@@ -1023,7 +1576,7 @@
 
     for ( seg = segments; seg < segment_limit; seg++ )
     {
-      AF_Edge  found = 0;
+      AF_Edge  found = NULL;
       FT_Int   ee;
 
 
@@ -1072,9 +1625,10 @@
 
         edge->first    = seg;
         edge->last     = seg;
-        edge->fpos     = seg->pos;
         edge->dir      = seg->dir;
-        edge->opos     = edge->pos = FT_MulFix( seg->pos, scale );
+        edge->fpos     = seg->pos;
+        edge->opos     = FT_MulFix( seg->pos, scale );
+        edge->pos      = edge->opos;
         seg->edge_next = seg;
       }
       else
@@ -1088,17 +1642,17 @@
     }
 
 
-    /*********************************************************************/
-    /*                                                                   */
-    /* Good, we will now compute each edge's properties according to     */
-    /* segments found on its position.  Basically, these are:            */
-    /*                                                                   */
-    /*  - edge's main direction                                          */
-    /*  - stem edge, serif edge or both (which defaults to stem then)    */
-    /*  - rounded edge, straight or both (which defaults to straight)    */
-    /*  - link for edge                                                  */
-    /*                                                                   */
-    /*********************************************************************/
+    /******************************************************************/
+    /*                                                                */
+    /* Good, we now compute each edge's properties according to the   */
+    /* segments found on its position.  Basically, these are          */
+    /*                                                                */
+    /*  - the edge's main direction                                   */
+    /*  - stem edge, serif edge or both (which defaults to stem then) */
+    /*  - rounded edge, straight or both (which defaults to straight) */
+    /*  - link for edge                                               */
+    /*                                                                */
+    /******************************************************************/
 
     /* first of all, set the `edge' field in each segment -- this is */
     /* required in order to compute edge links                       */
@@ -1126,13 +1680,15 @@
           } while ( seg != edge->first );
       }
 
-      /* now, compute each edge properties */
+      /* now compute each edge properties */
       for ( edge = edges; edge < edge_limit; edge++ )
       {
         FT_Int  is_round    = 0;  /* does it contain round segments?    */
         FT_Int  is_straight = 0;  /* does it contain straight segments? */
+#if 0
         FT_Pos  ups         = 0;  /* number of upwards segments         */
         FT_Pos  downs       = 0;  /* number of downwards segments       */
+#endif
 
 
         seg = edge->first;
@@ -1148,11 +1704,13 @@
           else
             is_straight++;
 
+#if 0
           /* check for segment direction */
           if ( seg->dir == up_dir )
-            ups   += seg->max_coord-seg->min_coord;
+            ups   += seg->max_coord - seg->min_coord;
           else
-            downs += seg->max_coord-seg->min_coord;
+            downs += seg->max_coord - seg->min_coord;
+#endif
 
           /* check for links -- if seg->serif is set, then seg->link must */
           /* be ignored                                                   */
@@ -1228,7 +1786,7 @@
           edge->dir = 0;  /* both up and down! */
 #endif
 
-        /* gets rid of serifs if link is set                */
+        /* get rid of serifs if link is set                 */
         /* XXX: This gets rid of many unpleasant artefacts! */
         /*      Example: the `c' in cour.pfa at size 13     */
 
@@ -1242,8 +1800,12 @@
   }
 
 
+  /* Detect segments and edges for given dimension. */
+
   FT_LOCAL_DEF( FT_Error )
   af_latin_hints_detect_features( AF_GlyphHints  hints,
+                                  FT_UInt        width_count,
+                                  AF_WidthRec*   widths,
                                   AF_Dimension   dim )
   {
     FT_Error  error;
@@ -1252,22 +1814,25 @@
     error = af_latin_hints_compute_segments( hints, dim );
     if ( !error )
     {
-      af_latin_hints_link_segments( hints, dim );
+      af_latin_hints_link_segments( hints, width_count, widths, dim );
 
       error = af_latin_hints_compute_edges( hints, dim );
     }
+
     return error;
   }
 
 
+  /* Compute all edges which lie within blue zones. */
+
   FT_LOCAL_DEF( void )
   af_latin_hints_compute_blue_edges( AF_GlyphHints    hints,
                                      AF_LatinMetrics  metrics )
   {
-    AF_AxisHints  axis       = &hints->axis[ AF_DIMENSION_VERT ];
+    AF_AxisHints  axis       = &hints->axis[AF_DIMENSION_VERT];
     AF_Edge       edge       = axis->edges;
     AF_Edge       edge_limit = edge + axis->num_edges;
-    AF_LatinAxis  latin      = &metrics->axis[ AF_DIMENSION_VERT ];
+    AF_LatinAxis  latin      = &metrics->axis[AF_DIMENSION_VERT];
     FT_Fixed      scale      = latin->scale;
 
 
@@ -1277,38 +1842,43 @@
     /* for each horizontal edge search the blue zone which is closest */
     for ( ; edge < edge_limit; edge++ )
     {
-      FT_Int    bb;
-      AF_Width  best_blue = NULL;
-      FT_Pos    best_dist;  /* initial threshold */
+      FT_UInt   bb;
+      AF_Width  best_blue            = NULL;
+      FT_Bool   best_blue_is_neutral = 0;
+      FT_Pos    best_dist;                 /* initial threshold */
 
 
       /* compute the initial threshold as a fraction of the EM size */
+      /* (the value 40 is heuristic)                                */
       best_dist = FT_MulFix( metrics->units_per_em / 40, scale );
 
+      /* assure a minimum distance of 0.5px */
       if ( best_dist > 64 / 2 )
         best_dist = 64 / 2;
 
-      for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ )
+      for ( bb = 0; bb < latin->blue_count; bb++ )
       {
         AF_LatinBlue  blue = latin->blues + bb;
-        FT_Bool       is_top_blue, is_major_dir;
+        FT_Bool       is_top_blue, is_neutral_blue, is_major_dir;
 
 
-        /* skip inactive blue zones (i.e., those that are too small) */
+        /* skip inactive blue zones (i.e., those that are too large) */
         if ( !( blue->flags & AF_LATIN_BLUE_ACTIVE ) )
           continue;
 
-        /* if it is a top zone, check for right edges -- if it is a bottom */
-        /* zone, check for left edges                                      */
-        /*                                                                 */
-        /* of course, that's for TrueType                                  */
-        is_top_blue  = (FT_Byte)( ( blue->flags & AF_LATIN_BLUE_TOP ) != 0 );
-        is_major_dir = FT_BOOL( edge->dir == axis->major_dir );
-
-        /* if it is a top zone, the edge must be against the major    */
-        /* direction; if it is a bottom zone, it must be in the major */
-        /* direction                                                  */
-        if ( is_top_blue ^ is_major_dir )
+        /* if it is a top zone, check for right edges (against the major */
+        /* direction); if it is a bottom zone, check for left edges (in  */
+        /* the major direction) -- this assumes the TrueType convention  */
+        /* for the orientation of contours                               */
+        is_top_blue =
+          (FT_Byte)( ( blue->flags & AF_LATIN_BLUE_TOP ) != 0 );
+        is_neutral_blue =
+          (FT_Byte)( ( blue->flags & AF_LATIN_BLUE_NEUTRAL ) != 0);
+        is_major_dir =
+          FT_BOOL( edge->dir == axis->major_dir );
+
+        /* neutral blue zones are handled for both directions */
+        if ( is_top_blue ^ is_major_dir || is_neutral_blue )
         {
           FT_Pos  dist;
 
@@ -1321,21 +1891,25 @@
           dist = FT_MulFix( dist, scale );
           if ( dist < best_dist )
           {
-            best_dist = dist;
-            best_blue = & blue->ref;
+            best_dist            = dist;
+            best_blue            = &blue->ref;
+            best_blue_is_neutral = is_neutral_blue;
           }
 
-          /* now, compare it to the overshoot position if the edge is     */
-          /* rounded, and if the edge is over the reference position of a */
-          /* top zone, or under the reference position of a bottom zone   */
-          if ( edge->flags & AF_EDGE_ROUND && dist != 0 )
+          /* now compare it to the overshoot position and check whether */
+          /* the edge is rounded, and whether the edge is over the      */
+          /* reference position of a top zone, or under the reference   */
+          /* position of a bottom zone (provided we don't have a        */
+          /* neutral blue zone)                                         */
+          if ( edge->flags & AF_EDGE_ROUND &&
+               dist != 0                   &&
+               !is_neutral_blue            )
           {
             FT_Bool  is_under_ref = FT_BOOL( edge->fpos < blue->ref.org );
 
 
             if ( is_top_blue ^ is_under_ref )
             {
-              blue = latin->blues + bb;
               dist = edge->fpos - blue->shoot.org;
               if ( dist < 0 )
                 dist = -dist;
@@ -1343,8 +1917,9 @@
               dist = FT_MulFix( dist, scale );
               if ( dist < best_dist )
               {
-                best_dist = dist;
-                best_blue = & blue->shoot;
+                best_dist            = dist;
+                best_blue            = &blue->shoot;
+                best_blue_is_neutral = is_neutral_blue;
               }
             }
           }
@@ -1352,11 +1927,17 @@
       }
 
       if ( best_blue )
+      {
         edge->blue_edge = best_blue;
+        if ( best_blue_is_neutral )
+          edge->flags |= AF_EDGE_NEUTRAL;
+      }
     }
   }
 
 
+  /* Initalize hinting engine. */
+
   static FT_Error
   af_latin_hints_init( AF_GlyphHints    hints,
                        AF_LatinMetrics  metrics )
@@ -1366,11 +1947,11 @@
     FT_Face         face = metrics->root.scaler.face;
 
 
-    af_glyph_hints_rescale( hints, (AF_ScriptMetrics)metrics );
+    af_glyph_hints_rescale( hints, (AF_StyleMetrics)metrics );
 
     /*
      *  correct x_scale and y_scale if needed, since they may have
-     *  been modified `af_latin_metrics_scale_dim' above
+     *  been modified by `af_latin_metrics_scale_dim' above
      */
     hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale;
     hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta;
@@ -1380,11 +1961,9 @@
     /* compute flags depending on render mode, etc. */
     mode = metrics->root.scaler.render_mode;
 
-#if 0 /* #ifdef AF_USE_WARPER */
+#if 0 /* #ifdef AF_CONFIG_OPTION_USE_WARPER */
     if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V )
-    {
       metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL;
-    }
 #endif
 
     scaler_flags = hints->scaler_flags;
@@ -1417,14 +1996,14 @@
      *  In `light' hinting mode we disable horizontal hinting completely.
      *  We also do it if the face is italic.
      */
-    if ( mode == FT_RENDER_MODE_LIGHT                    ||
-         (face->style_flags & FT_STYLE_FLAG_ITALIC) != 0 )
+    if ( mode == FT_RENDER_MODE_LIGHT                      ||
+         ( face->style_flags & FT_STYLE_FLAG_ITALIC ) != 0 )
       scaler_flags |= AF_SCALER_FLAG_NO_HORIZONTAL;
 
     hints->scaler_flags = scaler_flags;
     hints->other_flags  = other_flags;
 
-    return 0;
+    return FT_Err_Ok;
   }
 
 
@@ -1436,8 +2015,8 @@
   /*************************************************************************/
   /*************************************************************************/
 
-  /* snap a given width in scaled coordinates to one of the */
-  /* current standard widths                                */
+  /* Snap a given width in scaled coordinates to one of the */
+  /* current standard widths.                               */
 
   static FT_Pos
   af_latin_snap_width( AF_Width  widths,
@@ -1484,7 +2063,9 @@
   }
 
 
-  /* compute the snapped width of a given stem */
+  /* Compute the snapped width of a given stem, ignoring very thin ones. */
+  /* There is a lot of voodoo in this function; changing the hard-coded  */
+  /* parameters influence the whole hinting process.                     */
 
   static FT_Pos
   af_latin_compute_stem_width( AF_GlyphHints  hints,
@@ -1493,15 +2074,15 @@
                                AF_Edge_Flags  base_flags,
                                AF_Edge_Flags  stem_flags )
   {
-    AF_LatinMetrics  metrics  = (AF_LatinMetrics) hints->metrics;
-    AF_LatinAxis     axis     = & metrics->axis[dim];
+    AF_LatinMetrics  metrics  = (AF_LatinMetrics)hints->metrics;
+    AF_LatinAxis     axis     = &metrics->axis[dim];
     FT_Pos           dist     = width;
     FT_Int           sign     = 0;
     FT_Int           vertical = ( dim == AF_DIMENSION_VERT );
 
 
     if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) ||
-          axis->extra_light                      )
+         axis->extra_light                       )
       return width;
 
     if ( dist < 0 )
@@ -1516,11 +2097,12 @@
       /* smooth hinting process: very lightly quantize the stem width */
 
       /* leave the widths of serifs alone */
-
-      if ( ( stem_flags & AF_EDGE_SERIF ) && vertical && ( dist < 3 * 64 ) )
+      if ( ( stem_flags & AF_EDGE_SERIF ) &&
+           vertical                       &&
+           ( dist < 3 * 64 )              )
         goto Done_Width;
 
-      else if ( ( base_flags & AF_EDGE_ROUND ) )
+      else if ( base_flags & AF_EDGE_ROUND )
       {
         if ( dist < 80 )
           dist = 64;
@@ -1534,21 +2116,18 @@
 
 
         /* compare to standard width */
-        if ( axis->width_count > 0 )
-        {
-          delta = dist - axis->widths[0].cur;
+        delta = dist - axis->widths[0].cur;
 
-          if ( delta < 0 )
-            delta = -delta;
+        if ( delta < 0 )
+          delta = -delta;
 
-          if ( delta < 40 )
-          {
-            dist = axis->widths[0].cur;
-            if ( dist < 48 )
-              dist = 48;
+        if ( delta < 40 )
+        {
+          dist = axis->widths[0].cur;
+          if ( dist < 48 )
+            dist = 48;
 
-            goto Done_Width;
-          }
+          goto Done_Width;
         }
 
         if ( dist < 3 * 64 )
@@ -1575,6 +2154,7 @@
     else
     {
       /* strong hinting process: snap the stem width to integer pixels */
+
       FT_Pos  org_dist = dist;
 
 
@@ -1627,7 +2207,7 @@
             if ( delta < 0 )
               delta = -delta;
 
-            if (delta >= 16)
+            if ( delta >= 16 )
             {
               dist = org_dist;
               if ( dist < 48 )
@@ -1649,7 +2229,7 @@
   }
 
 
-  /* align one stem edge relative to the previous stem edge */
+  /* Align one stem edge relative to the previous stem edge. */
 
   static void
   af_latin_align_linked_edge( AF_GlyphHints  hints,
@@ -1667,13 +2247,16 @@
 
     stem_edge->pos = base_edge->pos + fitted_width;
 
-    AF_LOG(( "LINK: edge %d (opos=%.2f) linked to (%.2f), "
-             "dist was %.2f, now %.2f\n",
-             stem_edge-hints->axis[dim].edges, stem_edge->opos / 64.0,
-             stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 ));
+    FT_TRACE5(( "  LINK: edge %d (opos=%.2f) linked to %.2f,"
+                " dist was %.2f, now %.2f\n",
+                stem_edge - hints->axis[dim].edges, stem_edge->opos / 64.0,
+                stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 ));
   }
 
 
+  /* Shift the coordinates of the `serif' edge by the same amount */
+  /* as the corresponding `base' edge has been moved already.     */
+
   static void
   af_latin_align_serif_edge( AF_GlyphHints  hints,
                              AF_Edge        base,
@@ -1681,7 +2264,7 @@
   {
     FT_UNUSED( hints );
 
-    serif->pos = base->pos + (serif->opos - base->opos);
+    serif->pos = base->pos + ( serif->opos - base->opos );
   }
 
 
@@ -1696,6 +2279,8 @@
   /*************************************************************************/
 
 
+  /* The main grid-fitting routine. */
+
   FT_LOCAL_DEF( void )
   af_latin_hint_edges( AF_GlyphHints  hints,
                        AF_Dimension   dim )
@@ -1705,9 +2290,17 @@
     AF_Edge       edge_limit = edges + axis->num_edges;
     FT_PtrDist    n_edges;
     AF_Edge       edge;
-    AF_Edge       anchor     = 0;
+    AF_Edge       anchor     = NULL;
     FT_Int        has_serifs = 0;
 
+#ifdef FT_DEBUG_LEVEL_TRACE
+    FT_UInt       num_actions = 0;
+#endif
+
+
+    FT_TRACE5(( "latin %s edge hinting (style `%s')\n",
+                dim == AF_DIMENSION_VERT ? "horizontal" : "vertical",
+                af_style_names[hints->metrics->style_class->style] ));
 
     /* we begin by aligning all stems relative to the blue zone */
     /* if needed -- that's only for horizontal edges            */
@@ -1717,20 +2310,47 @@
       for ( edge = edges; edge < edge_limit; edge++ )
       {
         AF_Width  blue;
-        AF_Edge   edge1, edge2;
+        AF_Edge   edge1, edge2; /* these edges form the stem to check */
 
 
         if ( edge->flags & AF_EDGE_DONE )
           continue;
 
-        blue  = edge->blue_edge;
         edge1 = NULL;
         edge2 = edge->link;
 
-        if ( blue )
+        /*
+         *  If a stem contains both a neutral and a non-neutral blue zone,
+         *  skip the neutral one.  Otherwise, outlines with different
+         *  directions might be incorrectly aligned at the same vertical
+         *  position.
+         *
+         *  If we have two neutral blue zones, skip one of them.
+         *
+         */
+        if ( edge->blue_edge && edge2 && edge2->blue_edge )
         {
-          edge1 = edge;
+          FT_Byte  neutral  = edge->flags  & AF_EDGE_NEUTRAL;
+          FT_Byte  neutral2 = edge2->flags & AF_EDGE_NEUTRAL;
+
+
+          if ( ( neutral && neutral2 ) || neutral2 )
+          {
+            edge2->blue_edge = NULL;
+            edge2->flags    &= ~AF_EDGE_NEUTRAL;
+          }
+          else if ( neutral )
+          {
+            edge->blue_edge = NULL;
+            edge->flags    &= ~AF_EDGE_NEUTRAL;
+          }
         }
+
+        blue = edge->blue_edge;
+        if ( blue )
+          edge1 = edge;
+
+        /* flip edges if the other edge is aligned to a blue zone */
         else if ( edge2 && edge2->blue_edge )
         {
           blue  = edge2->blue_edge;
@@ -1741,10 +2361,20 @@
         if ( !edge1 )
           continue;
 
-        AF_LOG(( "BLUE: edge %d (opos=%.2f) snapped to (%.2f), "
-                 "was (%.2f)\n",
-                 edge1-edges, edge1->opos / 64.0, blue->fit / 64.0,
-                 edge1->pos / 64.0 ));
+#ifdef FT_DEBUG_LEVEL_TRACE
+        if ( !anchor )
+          FT_TRACE5(( "  BLUE_ANCHOR: edge %d (opos=%.2f) snapped to %.2f,"
+                      " was %.2f (anchor=edge %d)\n",
+                      edge1 - edges, edge1->opos / 64.0, blue->fit / 64.0,
+                      edge1->pos / 64.0, edge - edges ));
+        else
+          FT_TRACE5(( "  BLUE: edge %d (opos=%.2f) snapped to %.2f,"
+                      " was %.2f\n",
+                      edge1 - edges, edge1->opos / 64.0, blue->fit / 64.0,
+                      edge1->pos / 64.0 ));
+
+        num_actions++;
+#endif
 
         edge1->pos    = blue->fit;
         edge1->flags |= AF_EDGE_DONE;
@@ -1753,6 +2383,10 @@
         {
           af_latin_align_linked_edge( hints, dim, edge1, edge2 );
           edge2->flags |= AF_EDGE_DONE;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+          num_actions++;
+#endif
         }
 
         if ( !anchor )
@@ -1760,8 +2394,8 @@
       }
     }
 
-    /* now we will align all stem edges, trying to maintain the */
-    /* relative order of stems in the glyph                     */
+    /* now we align all other stem edges, trying to maintain the */
+    /* relative order of stems in the glyph                      */
     for ( edge = edges; edge < edge_limit; edge++ )
     {
       AF_Edge  edge2;
@@ -1783,15 +2417,21 @@
       /* this should not happen, but it's better to be safe */
       if ( edge2->blue_edge )
       {
-        AF_LOG(( "ASSERTION FAILED for edge %d\n", edge2-edges ));
+        FT_TRACE5(( "  ASSERTION FAILED for edge %d\n", edge2 - edges ));
 
         af_latin_align_linked_edge( hints, dim, edge2, edge );
         edge->flags |= AF_EDGE_DONE;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+        num_actions++;
+#endif
         continue;
       }
 
       if ( !anchor )
       {
+        /* if we reach this if clause, no stem has been aligned yet */
+
         FT_Pos  org_len, org_center, cur_len;
         FT_Pos  cur_pos1, error1, error2, u_off, d_off;
 
@@ -1801,10 +2441,19 @@
                     hints, dim, org_len,
                     (AF_Edge_Flags)edge->flags,
                     (AF_Edge_Flags)edge2->flags );
+
+        /* some voodoo to specially round edges for small stem widths; */
+        /* the idea is to align the center of a stem, then shifting    */
+        /* the stem edges to suitable positions                        */
         if ( cur_len <= 64 )
-          u_off = d_off = 32;
+        {
+          /* width <= 1px */
+          u_off = 32;
+          d_off = 32;
+        }
         else
         {
+          /* 1px < width < 1.5px */
           u_off = 38;
           d_off = 26;
         }
@@ -1812,7 +2461,6 @@
         if ( cur_len < 96 )
         {
           org_center = edge->opos + ( org_len >> 1 );
-
           cur_pos1   = FT_PIX_ROUND( org_center );
 
           error1 = org_center - ( cur_pos1 - u_off );
@@ -1834,16 +2482,20 @@
         else
           edge->pos = FT_PIX_ROUND( edge->opos );
 
-        AF_LOG(( "ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f) "
-                 "snapped to (%.2f) (%.2f)\n",
-                 edge-edges, edge->opos / 64.0,
-                 edge2-edges, edge2->opos / 64.0,
-                 edge->pos / 64.0, edge2->pos / 64.0 ));
-        anchor = edge;
-
+        anchor       = edge;
         edge->flags |= AF_EDGE_DONE;
 
+        FT_TRACE5(( "  ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f)"
+                    " snapped to %.2f and %.2f\n",
+                    edge - edges, edge->opos / 64.0,
+                    edge2 - edges, edge2->opos / 64.0,
+                    edge->pos / 64.0, edge2->pos / 64.0 ));
+
         af_latin_align_linked_edge( hints, dim, edge, edge2 );
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+        num_actions += 2;
+#endif
       }
       else
       {
@@ -1856,12 +2508,18 @@
         org_center = org_pos + ( org_len >> 1 );
 
         cur_len = af_latin_compute_stem_width(
-                   hints, dim, org_len,
-                   (AF_Edge_Flags)edge->flags,
-                   (AF_Edge_Flags)edge2->flags );
+                    hints, dim, org_len,
+                    (AF_Edge_Flags)edge->flags,
+                    (AF_Edge_Flags)edge2->flags );
 
         if ( edge2->flags & AF_EDGE_DONE )
+        {
+          FT_TRACE5(( "  ADJUST: edge %d (pos=%.2f) moved to %.2f\n",
+                      edge - edges, edge->pos / 64.0,
+                      ( edge2->pos - cur_len ) / 64.0 ));
+
           edge->pos = edge2->pos - cur_len;
+        }
 
         else if ( cur_len < 96 )
         {
@@ -1870,8 +2528,11 @@
 
           cur_pos1 = FT_PIX_ROUND( org_center );
 
-          if (cur_len <= 64 )
-            u_off = d_off = 32;
+          if ( cur_len <= 64 )
+          {
+            u_off = 32;
+            d_off = 32;
+          }
           else
           {
             u_off = 38;
@@ -1894,12 +2555,13 @@
           edge->pos  = cur_pos1 - cur_len / 2;
           edge2->pos = cur_pos1 + cur_len / 2;
 
-          AF_LOG(( "STEM: %d (opos=%.2f) to %d (opos=%.2f) "
-                   "snapped to (%.2f) and (%.2f)\n",
-                   edge-edges, edge->opos / 64.0,
-                   edge2-edges, edge2->opos / 64.0,
-                   edge->pos / 64.0, edge2->pos / 64.0 ));
+          FT_TRACE5(( "  STEM: edge %d (opos=%.2f) linked to %d (opos=%.2f)"
+                      " snapped to %.2f and %.2f\n",
+                      edge - edges, edge->opos / 64.0,
+                      edge2 - edges, edge2->opos / 64.0,
+                      edge->pos / 64.0, edge2->pos / 64.0 ));
         }
+
         else
         {
           org_pos    = anchor->pos + ( edge->opos - anchor->opos );
@@ -1911,33 +2573,42 @@
                          (AF_Edge_Flags)edge->flags,
                          (AF_Edge_Flags)edge2->flags );
 
-          cur_pos1   = FT_PIX_ROUND( org_pos );
-          delta1     = cur_pos1 + ( cur_len >> 1 ) - org_center;
+          cur_pos1 = FT_PIX_ROUND( org_pos );
+          delta1   = cur_pos1 + ( cur_len >> 1 ) - org_center;
           if ( delta1 < 0 )
             delta1 = -delta1;
 
-          cur_pos2   = FT_PIX_ROUND( org_pos + org_len ) - cur_len;
-          delta2     = cur_pos2 + ( cur_len >> 1 ) - org_center;
+          cur_pos2 = FT_PIX_ROUND( org_pos + org_len ) - cur_len;
+          delta2   = cur_pos2 + ( cur_len >> 1 ) - org_center;
           if ( delta2 < 0 )
             delta2 = -delta2;
 
           edge->pos  = ( delta1 < delta2 ) ? cur_pos1 : cur_pos2;
           edge2->pos = edge->pos + cur_len;
 
-          AF_LOG(( "STEM: %d (opos=%.2f) to %d (opos=%.2f) "
-                   "snapped to (%.2f) and (%.2f)\n",
-                   edge-edges, edge->opos / 64.0,
-                   edge2-edges, edge2->opos / 64.0,
-                   edge->pos / 64.0, edge2->pos / 64.0 ));
+          FT_TRACE5(( "  STEM: edge %d (opos=%.2f) linked to %d (opos=%.2f)"
+                      " snapped to %.2f and %.2f\n",
+                      edge - edges, edge->opos / 64.0,
+                      edge2 - edges, edge2->opos / 64.0,
+                      edge->pos / 64.0, edge2->pos / 64.0 ));
         }
 
+#ifdef FT_DEBUG_LEVEL_TRACE
+        num_actions++;
+#endif
+
         edge->flags  |= AF_EDGE_DONE;
         edge2->flags |= AF_EDGE_DONE;
 
         if ( edge > edges && edge->pos < edge[-1].pos )
         {
-          AF_LOG(( "BOUND: %d (pos=%.2f) to (%.2f)\n",
-                   edge-edges, edge->pos / 64.0, edge[-1].pos / 64.0 ));
+#ifdef FT_DEBUG_LEVEL_TRACE
+          FT_TRACE5(( "  BOUND: edge %d (pos=%.2f) moved to %.2f\n",
+                      edge - edges, edge->pos / 64.0, edge[-1].pos / 64.0 ));
+
+          num_actions++;
+#endif
+
           edge->pos = edge[-1].pos;
         }
       }
@@ -2031,18 +2702,19 @@
         if ( delta < 64 + 16 )
         {
           af_latin_align_serif_edge( hints, edge->serif, edge );
-          AF_LOG(( "SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f) "
-                   "aligned to (%.2f)\n",
-                   edge-edges, edge->opos / 64.0,
-                   edge->serif - edges, edge->serif->opos / 64.0,
-                   edge->pos / 64.0 ));
+          FT_TRACE5(( "  SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f)"
+                      " aligned to %.2f\n",
+                      edge - edges, edge->opos / 64.0,
+                      edge->serif - edges, edge->serif->opos / 64.0,
+                      edge->pos / 64.0 ));
         }
         else if ( !anchor )
         {
-          AF_LOG(( "SERIF_ANCHOR: edge %d (opos=%.2f) snapped to (%.2f)\n",
-                   edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
           edge->pos = FT_PIX_ROUND( edge->opos );
           anchor    = edge;
+          FT_TRACE5(( "  SERIF_ANCHOR: edge %d (opos=%.2f)"
+                      " snapped to %.2f\n",
+                      edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
         }
         else
         {
@@ -2067,35 +2739,65 @@
                           FT_MulDiv( edge->opos - before->opos,
                                      after->pos - before->pos,
                                      after->opos - before->opos );
-            AF_LOG(( "SERIF_LINK1: edge %d (opos=%.2f) snapped to (%.2f) "
-                     "from %d (opos=%.2f)\n",
-                     edge-edges, edge->opos / 64.0,
-                     edge->pos / 64.0, before - edges,
-                     before->opos / 64.0 ));
+
+            FT_TRACE5(( "  SERIF_LINK1: edge %d (opos=%.2f) snapped to %.2f"
+                        " from %d (opos=%.2f)\n",
+                        edge - edges, edge->opos / 64.0,
+                        edge->pos / 64.0,
+                        before - edges, before->opos / 64.0 ));
           }
           else
           {
             edge->pos = anchor->pos +
                         ( ( edge->opos - anchor->opos + 16 ) & ~31 );
-            AF_LOG(( "SERIF_LINK2: edge %d (opos=%.2f) snapped to (%.2f)\n",
-                     edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
+            FT_TRACE5(( "  SERIF_LINK2: edge %d (opos=%.2f)"
+                        " snapped to %.2f\n",
+                        edge - edges, edge->opos / 64.0, edge->pos / 64.0 ));
           }
         }
 
+#ifdef FT_DEBUG_LEVEL_TRACE
+        num_actions++;
+#endif
         edge->flags |= AF_EDGE_DONE;
 
         if ( edge > edges && edge->pos < edge[-1].pos )
+        {
+#ifdef FT_DEBUG_LEVEL_TRACE
+          FT_TRACE5(( "  BOUND: edge %d (pos=%.2f) moved to %.2f\n",
+                      edge - edges, edge->pos / 64.0, edge[-1].pos / 64.0 ));
+
+          num_actions++;
+#endif
           edge->pos = edge[-1].pos;
+        }
 
         if ( edge + 1 < edge_limit        &&
              edge[1].flags & AF_EDGE_DONE &&
              edge->pos > edge[1].pos      )
+        {
+#ifdef FT_DEBUG_LEVEL_TRACE
+          FT_TRACE5(( "  BOUND: edge %d (pos=%.2f) moved to %.2f\n",
+                      edge - edges, edge->pos / 64.0, edge[1].pos / 64.0 ));
+
+          num_actions++;
+#endif
+
           edge->pos = edge[1].pos;
+        }
       }
     }
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+    if ( !num_actions )
+      FT_TRACE5(( "  (none)\n" ));
+    FT_TRACE5(( "\n" ));
+#endif
   }
 
 
+  /* Apply the complete hinting algorithm to a latin glyph. */
+
   static FT_Error
   af_latin_hints_apply( AF_GlyphHints    hints,
                         FT_Outline*      outline,
@@ -2104,27 +2806,37 @@
     FT_Error  error;
     int       dim;
 
+    AF_LatinAxis  axis;
 
-    error = af_glyph_hints_reload( hints, outline, 1 );
+
+    error = af_glyph_hints_reload( hints, outline );
     if ( error )
       goto Exit;
 
     /* analyze glyph outline */
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
     if ( metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ||
-         AF_HINTS_DO_HORIZONTAL( hints ) )
+         AF_HINTS_DO_HORIZONTAL( hints )                          )
 #else
     if ( AF_HINTS_DO_HORIZONTAL( hints ) )
 #endif
     {
-      error = af_latin_hints_detect_features( hints, AF_DIMENSION_HORZ );
+      axis  = &metrics->axis[AF_DIMENSION_HORZ];
+      error = af_latin_hints_detect_features( hints,
+                                              axis->width_count,
+                                              axis->widths,
+                                              AF_DIMENSION_HORZ );
       if ( error )
         goto Exit;
     }
 
     if ( AF_HINTS_DO_VERTICAL( hints ) )
     {
-      error = af_latin_hints_detect_features( hints, AF_DIMENSION_VERT );
+      axis  = &metrics->axis[AF_DIMENSION_VERT];
+      error = af_latin_hints_detect_features( hints,
+                                              axis->width_count,
+                                              axis->widths,
+                                              AF_DIMENSION_VERT );
       if ( error )
         goto Exit;
 
@@ -2134,17 +2846,19 @@
     /* grid-fit the outline */
     for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
     {
-#ifdef AF_USE_WARPER
-      if ( ( dim == AF_DIMENSION_HORZ &&
-             metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ) )
+#ifdef AF_CONFIG_OPTION_USE_WARPER
+      if ( dim == AF_DIMENSION_HORZ                                 &&
+           metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT )
       {
         AF_WarperRec  warper;
         FT_Fixed      scale;
         FT_Pos        delta;
 
 
-        af_warper_compute( &warper, hints, dim, &scale, &delta );
-        af_glyph_hints_scale_dim( hints, dim, scale, delta );
+        af_warper_compute( &warper, hints, (AF_Dimension)dim,
+                           &scale, &delta );
+        af_glyph_hints_scale_dim( hints, (AF_Dimension)dim,
+                                  scale, delta );
         continue;
       }
 #endif
@@ -2158,6 +2872,7 @@
         af_glyph_hints_align_weak_points( hints, (AF_Dimension)dim );
       }
     }
+
     af_glyph_hints_save( hints, outline );
 
   Exit:
@@ -2174,53 +2889,19 @@
   /*************************************************************************/
 
 
-  /* XXX: this should probably fine tuned to differentiate better between */
-  /*      scripts...                                                      */
+  AF_DEFINE_WRITING_SYSTEM_CLASS(
+    af_latin_writing_system_class,
 
-  static const AF_Script_UniRangeRec  af_latin_uniranges[] =
-  {
-    AF_UNIRANGE_REC(  0x0020UL,  0x007FUL ),  /* Basic Latin (no control chars) */
-    AF_UNIRANGE_REC(  0x00A0UL,  0x00FFUL ),  /* Latin-1 Supplement (no control chars) */
-    AF_UNIRANGE_REC(  0x0100UL,  0x017FUL ),  /* Latin Extended-A */
-    AF_UNIRANGE_REC(  0x0180UL,  0x024FUL ),  /* Latin Extended-B */
-    AF_UNIRANGE_REC(  0x0250UL,  0x02AFUL ),  /* IPA Extensions */
-    AF_UNIRANGE_REC(  0x02B0UL,  0x02FFUL ),  /* Spacing Modifier Letters */
-    AF_UNIRANGE_REC(  0x0300UL,  0x036FUL ),  /* Combining Diacritical Marks */
-    AF_UNIRANGE_REC(  0x0370UL,  0x03FFUL ),  /* Greek and Coptic */
-    AF_UNIRANGE_REC(  0x0400UL,  0x04FFUL ),  /* Cyrillic */
-    AF_UNIRANGE_REC(  0x0500UL,  0x052FUL ),  /* Cyrillic Supplement */
-    AF_UNIRANGE_REC(  0x1D00UL,  0x1D7FUL ),  /* Phonetic Extensions */
-    AF_UNIRANGE_REC(  0x1D80UL,  0x1DBFUL ),  /* Phonetic Extensions Supplement */
-    AF_UNIRANGE_REC(  0x1DC0UL,  0x1DFFUL ),  /* Combining Diacritical Marks Supplement */
-    AF_UNIRANGE_REC(  0x1E00UL,  0x1EFFUL ),  /* Latin Extended Additional */
-    AF_UNIRANGE_REC(  0x1F00UL,  0x1FFFUL ),  /* Greek Extended */
-    AF_UNIRANGE_REC(  0x2000UL,  0x206FUL ),  /* General Punctuation */
-    AF_UNIRANGE_REC(  0x2070UL,  0x209FUL ),  /* Superscripts and Subscripts */
-    AF_UNIRANGE_REC(  0x20A0UL,  0x20CFUL ),  /* Currency Symbols */
-    AF_UNIRANGE_REC(  0x2150UL,  0x218FUL ),  /* Number Forms */
-    AF_UNIRANGE_REC(  0x2460UL,  0x24FFUL ),  /* Enclosed Alphanumerics */
-    AF_UNIRANGE_REC(  0x2C60UL,  0x2C7FUL ),  /* Latin Extended-C */
-    AF_UNIRANGE_REC(  0x2DE0UL,  0x2DFFUL ),  /* Cyrillic Extended-A */
-    AF_UNIRANGE_REC(  0xA640UL,  0xA69FUL ),  /* Cyrillic Extended-B */
-    AF_UNIRANGE_REC(  0xA720UL,  0xA7FFUL ),  /* Latin Extended-D */
-    AF_UNIRANGE_REC(  0xFB00UL,  0xFB06UL ),  /* Alphab. Present. Forms (Latin Ligs) */
-    AF_UNIRANGE_REC( 0x1D400UL, 0x1D7FFUL ),  /* Mathematical Alphanumeric Symbols */
-    AF_UNIRANGE_REC(       0UL,       0UL )
-  };
-
-
-  AF_DEFINE_SCRIPT_CLASS(af_latin_script_class,  
-    AF_SCRIPT_LATIN,
-    af_latin_uniranges,
-
-    sizeof( AF_LatinMetricsRec ),
-
-    (AF_Script_InitMetricsFunc) af_latin_metrics_init,
-    (AF_Script_ScaleMetricsFunc)af_latin_metrics_scale,
-    (AF_Script_DoneMetricsFunc) NULL,
-
-    (AF_Script_InitHintsFunc)   af_latin_hints_init,
-    (AF_Script_ApplyHintsFunc)  af_latin_hints_apply
+    AF_WRITING_SYSTEM_LATIN,
+
+    sizeof ( AF_LatinMetricsRec ),
+
+    (AF_WritingSystem_InitMetricsFunc) af_latin_metrics_init,
+    (AF_WritingSystem_ScaleMetricsFunc)af_latin_metrics_scale,
+    (AF_WritingSystem_DoneMetricsFunc) NULL,
+
+    (AF_WritingSystem_InitHintsFunc)   af_latin_hints_init,
+    (AF_WritingSystem_ApplyHintsFunc)  af_latin_hints_apply
   )
 
 
diff --git a/src/3rdparty/freetype/src/autofit/aflatin.h b/src/3rdparty/freetype/src/autofit/aflatin.h
index 660b10c83f..2c0bfca18b 100644
--- a/src/3rdparty/freetype/src/autofit/aflatin.h
+++ b/src/3rdparty/freetype/src/autofit/aflatin.h
@@ -2,9 +2,10 @@
 /*                                                                         */
 /*  aflatin.h                                                              */
 /*                                                                         */
-/*    Auto-fitter hinting routines for latin script (specification).       */
+/*    Auto-fitter hinting routines for latin writing system                */
+/*    (specification).                                                     */
 /*                                                                         */
-/*  Copyright 2003, 2004, 2005, 2006, 2007, 2009 by                        */
+/*  Copyright 2003-2007, 2009, 2011-2014 by                                */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -24,14 +25,13 @@
 
 FT_BEGIN_HEADER
 
+  /* the `latin' writing system */
 
-  /* the latin-specific script class */
+  AF_DECLARE_WRITING_SYSTEM_CLASS( af_latin_writing_system_class )
 
-  AF_DECLARE_SCRIPT_CLASS(af_latin_script_class)
 
-
-/* constants are given with units_per_em == 2048 in mind */
-#define AF_LATIN_CONSTANT( metrics, c ) \
+  /* constants are given with units_per_em == 2048 in mind */
+#define AF_LATIN_CONSTANT( metrics, c )                                      \
   ( ( (c) * (FT_Long)( (AF_LatinMetrics)(metrics) )->units_per_em ) / 2048 )
 
 
@@ -46,40 +46,30 @@ FT_BEGIN_HEADER
 
   /*
    *  The following declarations could be embedded in the file `aflatin.c';
-   *  they have been made semi-public to allow alternate script hinters to
-   *  re-use some of them.
+   *  they have been made semi-public to allow alternate writing system
+   *  hinters to re-use some of them.
    */
 
 
-  /* Latin (global) metrics management */
-
-  enum
-  {
-    AF_LATIN_BLUE_CAPITAL_TOP,
-    AF_LATIN_BLUE_CAPITAL_BOTTOM,
-    AF_LATIN_BLUE_SMALL_F_TOP,
-    AF_LATIN_BLUE_SMALL_TOP,
-    AF_LATIN_BLUE_SMALL_BOTTOM,
-    AF_LATIN_BLUE_SMALL_MINOR,
-
-    AF_LATIN_BLUE_MAX
-  };
-
-
-#define AF_LATIN_IS_TOP_BLUE( b )  ( (b) == AF_LATIN_BLUE_CAPITAL_TOP || \
-                                     (b) == AF_LATIN_BLUE_SMALL_F_TOP || \
-                                     (b) == AF_LATIN_BLUE_SMALL_TOP   )
+#define AF_LATIN_IS_TOP_BLUE( b ) \
+          ( (b)->properties & AF_BLUE_PROPERTY_LATIN_TOP )
+#define AF_LATIN_IS_NEUTRAL_BLUE( b ) \
+          ( (b)->properties & AF_BLUE_PROPERTY_LATIN_NEUTRAL )
+#define AF_LATIN_IS_X_HEIGHT_BLUE( b ) \
+          ( (b)->properties & AF_BLUE_PROPERTY_LATIN_X_HEIGHT )
+#define AF_LATIN_IS_LONG_BLUE( b ) \
+          ( (b)->properties & AF_BLUE_PROPERTY_LATIN_LONG )
 
 #define AF_LATIN_MAX_WIDTHS  16
-#define AF_LATIN_MAX_BLUES   AF_LATIN_BLUE_MAX
 
 
   enum
   {
-    AF_LATIN_BLUE_ACTIVE     = 1 << 0,
-    AF_LATIN_BLUE_TOP        = 1 << 1,
-    AF_LATIN_BLUE_ADJUSTMENT = 1 << 2,  /* used for scale adjustment */
-                                        /* optimization              */
+    AF_LATIN_BLUE_ACTIVE     = 1 << 0, /* set if zone height is <= 3/4px   */
+    AF_LATIN_BLUE_TOP        = 1 << 1, /* set if we have a top blue zone   */
+    AF_LATIN_BLUE_NEUTRAL    = 1 << 2, /* set if we have neutral blue zone */
+    AF_LATIN_BLUE_ADJUSTMENT = 1 << 3, /* used for scale adjustment        */
+                                       /* optimization                     */
     AF_LATIN_BLUE_FLAG_MAX
   };
 
@@ -98,16 +88,15 @@ FT_BEGIN_HEADER
     FT_Fixed         scale;
     FT_Pos           delta;
 
-    FT_UInt          width_count;
-    AF_WidthRec      widths[AF_LATIN_MAX_WIDTHS];
-    FT_Pos           edge_distance_threshold;
-    FT_Pos           standard_width;
-    FT_Bool          extra_light;
+    FT_UInt          width_count;                 /* number of used widths */
+    AF_WidthRec      widths[AF_LATIN_MAX_WIDTHS]; /* widths array          */
+    FT_Pos           edge_distance_threshold;   /* used for creating edges */
+    FT_Pos           standard_width;         /* the default stem thickness */
+    FT_Bool          extra_light;         /* is standard width very light? */
 
     /* ignored for horizontal metrics */
-    FT_Bool          control_overshoot;
     FT_UInt          blue_count;
-    AF_LatinBlueRec  blues[AF_LATIN_BLUE_MAX];
+    AF_LatinBlueRec  blues[AF_BLUE_STRINGSET_MAX];
 
     FT_Fixed         org_scale;
     FT_Pos           org_delta;
@@ -117,9 +106,9 @@ FT_BEGIN_HEADER
 
   typedef struct  AF_LatinMetricsRec_
   {
-    AF_ScriptMetricsRec  root;
-    FT_UInt              units_per_em;
-    AF_LatinAxisRec      axis[AF_DIMENSION_MAX];
+    AF_StyleMetricsRec  root;
+    FT_UInt             units_per_em;
+    AF_LatinAxisRec     axis[AF_DIMENSION_MAX];
 
   } AF_LatinMetricsRec, *AF_LatinMetrics;
 
@@ -134,8 +123,7 @@ FT_BEGIN_HEADER
 
   FT_LOCAL( void )
   af_latin_metrics_init_widths( AF_LatinMetrics  metrics,
-                                FT_Face          face,
-                                FT_ULong         charcode );
+                                FT_Face          face );
 
   FT_LOCAL( void )
   af_latin_metrics_check_digits( AF_LatinMetrics  metrics,
@@ -175,31 +163,27 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  This shouldn't normally be exported.  However, other scripts might
-   *  like to use this function as-is.
+   *  The next functions shouldn't normally be exported.  However, other
+   *  writing systems might like to use these functions as-is.
    */
   FT_LOCAL( FT_Error )
   af_latin_hints_compute_segments( AF_GlyphHints  hints,
                                    AF_Dimension   dim );
 
-  /*
-   *  This shouldn't normally be exported.  However, other scripts might
-   *  want to use this function as-is.
-   */
   FT_LOCAL( void )
   af_latin_hints_link_segments( AF_GlyphHints  hints,
+                                FT_UInt        width_count,
+                                AF_WidthRec*   widths,
                                 AF_Dimension   dim );
 
-  /*
-   *  This shouldn't normally be exported.  However, other scripts might
-   *  want to use this function as-is.
-   */
   FT_LOCAL( FT_Error )
   af_latin_hints_compute_edges( AF_GlyphHints  hints,
                                 AF_Dimension   dim );
 
   FT_LOCAL( FT_Error )
   af_latin_hints_detect_features( AF_GlyphHints  hints,
+                                  FT_UInt        width_count,
+                                  AF_WidthRec*   widths,
                                   AF_Dimension   dim );
 
 /* */
diff --git a/src/3rdparty/freetype/src/autofit/aflatin2.c b/src/3rdparty/freetype/src/autofit/aflatin2.c
index 5cbeb296b5..07590b380c 100644
--- a/src/3rdparty/freetype/src/autofit/aflatin2.c
+++ b/src/3rdparty/freetype/src/autofit/aflatin2.c
@@ -1,10 +1,10 @@
 /***************************************************************************/
 /*                                                                         */
-/*  aflatin.c                                                              */
+/*  aflatin2.c                                                             */
 /*                                                                         */
-/*    Auto-fitter hinting routines for latin script (body).                */
+/*    Auto-fitter hinting routines for latin writing system (body).        */
 /*                                                                         */
-/*  Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 by                  */
+/*  Copyright 2003-2014 by                                                 */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -18,18 +18,30 @@
 
 #include FT_ADVANCES_H
 
+#include "afglobal.h"
 #include "aflatin.h"
 #include "aflatin2.h"
 #include "aferrors.h"
 
 
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
 #include "afwarp.h"
 #endif
 
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
+  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
+  /* messages during execution.                                            */
+  /*                                                                       */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  trace_aflatin2
+
+
   FT_LOCAL_DEF( FT_Error )
   af_latin2_hints_compute_segments( AF_GlyphHints  hints,
-                                   AF_Dimension   dim );
+                                    AF_Dimension   dim );
 
   FT_LOCAL_DEF( void )
   af_latin2_hints_link_segments( AF_GlyphHints  hints,
@@ -45,8 +57,7 @@
 
   FT_LOCAL_DEF( void )
   af_latin2_metrics_init_widths( AF_LatinMetrics  metrics,
-                                FT_Face          face,
-                                FT_ULong         charcode )
+                                 FT_Face          face )
   {
     /* scan the array of segments in each direction */
     AF_GlyphHintsRec  hints[1];
@@ -65,7 +76,9 @@
       AF_Scaler            scaler = &dummy->root.scaler;
 
 
-      glyph_index = FT_Get_Char_Index( face, charcode );
+      glyph_index = FT_Get_Char_Index(
+                      face,
+                      metrics->root.style_class->standard_char );
       if ( glyph_index == 0 )
         goto Exit;
 
@@ -82,9 +95,9 @@
       scaler->render_mode = FT_RENDER_MODE_NORMAL;
       scaler->flags       = 0;
 
-      af_glyph_hints_rescale( hints, (AF_ScriptMetrics)dummy );
+      af_glyph_hints_rescale( hints, (AF_StyleMetrics)dummy );
 
-      error = af_glyph_hints_reload( hints, &face->glyph->outline, 0 );
+      error = af_glyph_hints_reload( hints, &face->glyph->outline );
       if ( error )
         goto Exit;
 
@@ -122,7 +135,7 @@
               dist = -dist;
 
             if ( num_widths < AF_LATIN_MAX_WIDTHS )
-              axis->widths[ num_widths++ ].org = dist;
+              axis->widths[num_widths++].org = dist;
           }
         }
 
@@ -156,7 +169,8 @@
 #define AF_LATIN_MAX_TEST_CHARACTERS  12
 
 
-  static const char af_latin2_blue_chars[AF_LATIN_MAX_BLUES][AF_LATIN_MAX_TEST_CHARACTERS+1] =
+  static const char af_latin2_blue_chars[AF_LATIN_MAX_BLUES]
+                                        [AF_LATIN_MAX_TEST_CHARACTERS+1] =
   {
     "THEZOCQS",
     "HEZLOCUS",
@@ -169,7 +183,7 @@
 
   static void
   af_latin2_metrics_init_blues( AF_LatinMetrics  metrics,
-                               FT_Face          face )
+                                FT_Face          face )
   {
     FT_Pos        flats [AF_LATIN_MAX_TEST_CHARACTERS];
     FT_Pos        rounds[AF_LATIN_MAX_TEST_CHARACTERS];
@@ -182,12 +196,12 @@
     FT_GlyphSlot  glyph = face->glyph;
 
 
-    /* we compute the blues simply by loading each character from the    */
+    /* we compute the blues simply by loading each character from the     */
     /* 'af_latin2_blue_chars[blues]' string, then compute its top-most or */
-    /* bottom-most points (depending on `AF_IS_TOP_BLUE')                */
+    /* bottom-most points (depending on `AF_IS_TOP_BLUE')                 */
 
-    AF_LOG(( "blue zones computation\n" ));
-    AF_LOG(( "------------------------------------------------\n" ));
+    FT_TRACE5(( "blue zones computation\n"
+                "======================\n\n" ));
 
     for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ )
     {
@@ -197,7 +211,7 @@
       FT_Pos*      blue_shoot;
 
 
-      AF_LOG(( "blue %3d: ", bb ));
+      FT_TRACE5(( "blue zone %d:\n", bb ));
 
       num_flats  = 0;
       num_rounds = 0;
@@ -210,8 +224,6 @@
         FT_Bool     round;
 
 
-        AF_LOG(( "'%c'", *p ));
-
         /* load the character in the face -- skip unknown or empty ones */
         glyph_index = FT_Get_Char_Index( face, (FT_UInt)*p );
         if ( glyph_index == 0 )
@@ -273,13 +285,14 @@
               best_last  = last;
             }
           }
-          AF_LOG(( "%5d", best_y ));
+          FT_TRACE5(( "  %c  %d", *p, best_y ));
         }
 
         /* now check whether the point belongs to a straight or round   */
         /* segment; we first need to find in which contour the extremum */
         /* lies, then inspect its previous and next points              */
         {
+          FT_Pos  best_x = points[best_point].x;
           FT_Int  start, end, prev, next;
           FT_Pos  dist;
 
@@ -290,13 +303,16 @@
 
           do
           {
-            prev = start-1;
+            prev = start - 1;
             if ( prev < best_first )
               prev = best_last;
 
-            dist = points[prev].y - best_y;
-            if ( dist < -5 || dist > 5 )
-              break;
+            dist = FT_ABS( points[prev].y - best_y );
+            /* accept a small distance or a small angle (both values are */
+            /* heuristic; value 20 corresponds to approx. 2.9 degrees)   */
+            if ( dist > 5 )
+              if ( FT_ABS( points[prev].x - best_x ) <= 20 * dist )
+                break;
 
             start = prev;
 
@@ -304,13 +320,14 @@
 
           do
           {
-            next = end+1;
+            next = end + 1;
             if ( next > best_last )
               next = best_first;
 
-            dist = points[next].y - best_y;
-            if ( dist < -5 || dist > 5 )
-              break;
+            dist = FT_ABS( points[next].y - best_y );
+            if ( dist > 5 )
+              if ( FT_ABS( points[next].x - best_x ) <= 20 * dist )
+                break;
 
             end = next;
 
@@ -321,7 +338,7 @@
             FT_CURVE_TAG( glyph->outline.tags[start] ) != FT_CURVE_TAG_ON ||
             FT_CURVE_TAG( glyph->outline.tags[ end ] ) != FT_CURVE_TAG_ON );
 
-          AF_LOG(( "%c ", round ? 'r' : 'f' ));
+          FT_TRACE5(( " (%s)\n", round ? "round" : "flat" ));
         }
 
         if ( round )
@@ -330,15 +347,13 @@
           flats[num_flats++]   = best_y;
       }
 
-      AF_LOG(( "\n" ));
-
       if ( num_flats == 0 && num_rounds == 0 )
       {
         /*
          *  we couldn't find a single glyph to compute this blue zone,
          *  we will simply ignore it then
          */
-        AF_LOG(( "empty\n" ));
+        FT_TRACE5(( "  empty\n" ));
         continue;
       }
 
@@ -381,7 +396,13 @@
 
 
         if ( AF_LATIN_IS_TOP_BLUE( bb ) ^ over_ref )
-          *blue_shoot = *blue_ref = ( shoot + ref ) / 2;
+        {
+          *blue_ref   =
+          *blue_shoot = ( shoot + ref ) / 2;
+
+          FT_TRACE5(( "  [overshoot smaller than reference,"
+                      " taking mean value]\n" ));
+        }
       }
 
       blue->flags = 0;
@@ -389,14 +410,16 @@
         blue->flags |= AF_LATIN_BLUE_TOP;
 
       /*
-       * The following flags is used later to adjust the y and x scales
+       * The following flag is used later to adjust the y and x scales
        * in order to optimize the pixel grid alignment of the top of small
        * letters.
        */
-      if ( bb == AF_LATIN_BLUE_SMALL_TOP )
+      if ( AF_LATIN_IS_X_HEIGHT_BLUE( bb ) )
         blue->flags |= AF_LATIN_BLUE_ADJUSTMENT;
 
-      AF_LOG(( "-- ref = %ld, shoot = %ld\n", *blue_ref, *blue_shoot ));
+      FT_TRACE5(( "    -> reference = %ld\n"
+                  "       overshoot = %ld\n",
+                  *blue_ref, *blue_shoot ));
     }
 
     return;
@@ -451,9 +474,9 @@
 
   FT_LOCAL_DEF( FT_Error )
   af_latin2_metrics_init( AF_LatinMetrics  metrics,
-                         FT_Face          face )
+                          FT_Face          face )
   {
-    FT_Error    error = AF_Err_Ok;
+    FT_Error    error  = FT_Err_Ok;
     FT_CharMap  oldmap = face->charmap;
     FT_UInt     ee;
 
@@ -479,21 +502,20 @@
 
     if ( !error )
     {
-      /* For now, compute the standard width and height from the `o'. */
-      af_latin2_metrics_init_widths( metrics, face, 'o' );
+      af_latin2_metrics_init_widths( metrics, face );
       af_latin2_metrics_init_blues( metrics, face );
       af_latin2_metrics_check_digits( metrics, face );
     }
 
     FT_Set_Charmap( face, oldmap );
-    return AF_Err_Ok;
+    return FT_Err_Ok;
   }
 
 
   static void
   af_latin2_metrics_scale_dim( AF_LatinMetrics  metrics,
-                              AF_Scaler        scaler,
-                              AF_Dimension     dim )
+                               AF_Scaler        scaler,
+                               AF_Dimension     dim )
   {
     FT_Fixed      scale;
     FT_Pos        delta;
@@ -541,13 +563,35 @@
 
       if ( blue )
       {
-        FT_Pos  scaled = FT_MulFix( blue->shoot.org, scaler->y_scale );
-        FT_Pos  fitted = ( scaled + 40 ) & ~63;
+        FT_Pos   scaled;
+        FT_Pos   threshold;
+        FT_Pos   fitted;
+        FT_UInt  limit;
+        FT_UInt  ppem;
+
+
+        scaled    = FT_MulFix( blue->shoot.org, scaler->y_scale );
+        ppem      = metrics->root.scaler.face->size->metrics.x_ppem;
+        limit     = metrics->root.globals->increase_x_height;
+        threshold = 40;
+
+        /* if the `increase-x-height' property is active, */
+        /* we round up much more often                    */
+        if ( limit                                 &&
+             ppem <= limit                         &&
+             ppem >= AF_PROP_INCREASE_X_HEIGHT_MIN )
+          threshold = 52;
+
+        fitted = ( scaled + threshold ) & ~63;
 
 #if 1
-        if ( scaled != fitted ) {
+        if ( scaled != fitted )
+        {
           scale = FT_MulDiv( scale, fitted, scaled );
-          AF_LOG(( "== scaled x-top = %.2g  fitted = %.2g, scaling = %.4g\n", scaled/64.0, fitted/64.0, (fitted*1.0)/scaled ));
+          FT_TRACE5(( "== scaled x-top = %.2g"
+                      "  fitted = %.2g, scaling = %.4g\n",
+                      scaled / 64.0, fitted / 64.0,
+                      ( fitted * 1.0 ) / scaled ));
         }
 #endif
       }
@@ -578,7 +622,7 @@
     }
 
     /* an extra-light axis corresponds to a standard width that is */
-    /* smaller than 0.75 pixels                                    */
+    /* smaller than 5/8 pixels                                     */
     axis->extra_light =
       (FT_Bool)( FT_MulFix( axis->standard_width, scale ) < 32 + 8 );
 
@@ -623,9 +667,11 @@
           blue->ref.fit   = FT_PIX_ROUND( blue->ref.cur );
           blue->shoot.fit = blue->ref.fit + delta2;
 
-          AF_LOG(( ">> activating blue zone %d:  ref.cur=%.2g ref.fit=%.2g shoot.cur=%.2g shoot.fit=%.2g\n",
-                   nn, blue->ref.cur/64.0, blue->ref.fit/64.0,
-                   blue->shoot.cur/64.0, blue->shoot.fit/64.0 ));
+          FT_TRACE5(( ">> activating blue zone %d:"
+                      "  ref.cur=%.2g ref.fit=%.2g"
+                      "  shoot.cur=%.2g shoot.fit=%.2g\n",
+                      nn, blue->ref.cur / 64.0, blue->ref.fit / 64.0,
+                      blue->shoot.cur / 64.0, blue->shoot.fit / 64.0 ));
 
           blue->flags |= AF_LATIN_BLUE_ACTIVE;
         }
@@ -636,10 +682,11 @@
 
   FT_LOCAL_DEF( void )
   af_latin2_metrics_scale( AF_LatinMetrics  metrics,
-                          AF_Scaler        scaler )
+                           AF_Scaler        scaler )
   {
     metrics->root.scaler.render_mode = scaler->render_mode;
     metrics->root.scaler.face        = scaler->face;
+    metrics->root.scaler.flags       = scaler->flags;
 
     af_latin2_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ );
     af_latin2_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT );
@@ -658,11 +705,11 @@
 
   FT_LOCAL_DEF( FT_Error )
   af_latin2_hints_compute_segments( AF_GlyphHints  hints,
-                                   AF_Dimension   dim )
+                                    AF_Dimension   dim )
   {
     AF_AxisHints  axis          = &hints->axis[dim];
     FT_Memory     memory        = hints->memory;
-    FT_Error      error         = AF_Err_Ok;
+    FT_Error      error         = FT_Err_Ok;
     AF_Segment    segment       = NULL;
     AF_SegmentRec seg0;
     AF_Point*     contour       = hints->contours;
@@ -778,18 +825,17 @@
         segment->dir       = first->out_dir;
         segment->first     = first;
         segment->last      = point;
-        segment->contour   = contour;
-        segment->pos       = (FT_Short)(( min_u + max_u ) >> 1);
+        segment->pos       = (FT_Short)( ( min_u + max_u ) >> 1 );
         segment->min_coord = (FT_Short) min_v;
         segment->max_coord = (FT_Short) max_v;
-        segment->height    = (FT_Short)(max_v - min_v);
+        segment->height    = (FT_Short)( max_v - min_v );
 
         /* a segment is round if it doesn't have successive */
         /* on-curve points.                                 */
         {
           AF_Point  pt   = first;
           AF_Point  last = point;
-          AF_Flags  f0   = (AF_Flags)(pt->flags & AF_FLAG_CONTROL);
+          AF_Flags  f0   = (AF_Flags)( pt->flags & AF_FLAG_CONTROL );
           AF_Flags  f1;
 
 
@@ -798,7 +844,7 @@
           for ( ; pt != last; f0 = f1 )
           {
             pt = pt->next;
-            f1 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL);
+            f1 = (AF_Flags)( pt->flags & AF_FLAG_CONTROL );
 
             if ( !f0 && !f1 )
               break;
@@ -815,7 +861,7 @@
           break;
 
         /* jump to the start of the next segment, if any */
-        while ( FT_ABS(point->out_dir) != major_dir )
+        while ( FT_ABS( point->out_dir ) != major_dir )
         {
           point = point->next;
 
@@ -844,9 +890,6 @@
         FT_Pos    last_v  = last->v;
 
 
-        if ( first == last )
-          continue;
-
         if ( first_v < last_v )
         {
           p = first->prev;
@@ -883,16 +926,17 @@
       FT_UInt     count    = axis->num_segments;
       FT_UInt     ii, jj;
 
-      for (ii = 0; ii < count; ii++)
+      for ( ii = 0; ii < count; ii++ )
       {
         if ( segments[ii].dir > 0 )
         {
-          for (jj = ii+1; jj < count; jj++)
+          for ( jj = ii + 1; jj < count; jj++ )
           {
             if ( segments[jj].dir < 0 )
             {
               AF_SegmentRec  tmp;
 
+
               tmp          = segments[ii];
               segments[ii] = segments[jj];
               segments[jj] = tmp;
@@ -916,7 +960,7 @@
 
   FT_LOCAL_DEF( void )
   af_latin2_hints_link_segments( AF_GlyphHints  hints,
-                                AF_Dimension   dim )
+                                 AF_Dimension   dim )
   {
     AF_AxisHints  axis          = &hints->axis[dim];
     AF_Segment    segments      = axis->segments;
@@ -937,7 +981,7 @@
 #ifdef AF_SORT_SEGMENTS
     for ( seg1 = segments; seg1 < segment_mid; seg1++ )
     {
-      if ( seg1->dir != axis->major_dir || seg1->first == seg1->last )
+      if ( seg1->dir != axis->major_dir )
         continue;
 
       for ( seg2 = segment_mid; seg2 < segment_limit; seg2++ )
@@ -945,9 +989,7 @@
     /* now compare each segment to the others */
     for ( seg1 = segments; seg1 < segment_limit; seg1++ )
     {
-      /* the fake segments are introduced to hint the metrics -- */
-      /* we must never link them to anything                     */
-      if ( seg1->dir != axis->major_dir || seg1->first == seg1->last )
+      if ( seg1->dir != axis->major_dir )
         continue;
 
       for ( seg2 = segments; seg2 < segment_limit; seg2++ )
@@ -1016,10 +1058,10 @@
 
   FT_LOCAL_DEF( FT_Error )
   af_latin2_hints_compute_edges( AF_GlyphHints  hints,
-                                AF_Dimension   dim )
+                                 AF_Dimension   dim )
   {
     AF_AxisHints  axis   = &hints->axis[dim];
-    FT_Error      error  = AF_Err_Ok;
+    FT_Error      error  = FT_Err_Ok;
     FT_Memory     memory = hints->memory;
     AF_LatinAxis  laxis  = &((AF_LatinMetrics)hints->metrics)->axis[dim];
 
@@ -1053,7 +1095,7 @@
     if ( dim == AF_DIMENSION_HORZ )
     {
       if ( laxis->width_count > 0 )
-        segment_length_threshold = (laxis->standard_width * 10 ) >> 4;
+        segment_length_threshold = ( laxis->standard_width * 10 ) >> 4;
       else
         segment_length_threshold = FT_DivFix( 64, hints->y_scale );
     }
@@ -1099,10 +1141,11 @@
       {
         FT_Pos  dist = seg->serif->pos - seg->pos;
 
-        if (dist < 0)
+
+        if ( dist < 0 )
           dist = -dist;
 
-        if (dist >= laxis->standard_width >> 1)
+        if ( dist >= laxis->standard_width >> 1 )
         {
           /* unlink this serif, it is too distant from its reference stem */
           seg->serif = NULL;
@@ -1136,7 +1179,8 @@
 
         /* insert a new edge in the list and */
         /* sort according to the position    */
-        error = af_axis_hints_new_edge( axis, seg->pos, seg->dir, memory, &edge );
+        error = af_axis_hints_new_edge( axis, seg->pos, seg->dir,
+                                        memory, &edge );
         if ( error )
           goto Exit;
 
@@ -1145,9 +1189,10 @@
 
         edge->first    = seg;
         edge->last     = seg;
-        edge->fpos     = seg->pos;
         edge->dir      = seg->dir;
-        edge->opos     = edge->pos = FT_MulFix( seg->pos, scale );
+        edge->fpos     = seg->pos;
+        edge->opos     = FT_MulFix( seg->pos, scale );
+        edge->pos      = edge->opos;
         seg->edge_next = seg;
       }
       else
@@ -1204,8 +1249,10 @@
       {
         FT_Int  is_round    = 0;  /* does it contain round segments?    */
         FT_Int  is_straight = 0;  /* does it contain straight segments? */
+#if 0
         FT_Pos  ups         = 0;  /* number of upwards segments         */
         FT_Pos  downs       = 0;  /* number of downwards segments       */
+#endif
 
 
         seg = edge->first;
@@ -1221,11 +1268,13 @@
           else
             is_straight++;
 
+#if 0
           /* check for segment direction */
           if ( seg->dir == up_dir )
             ups   += seg->max_coord-seg->min_coord;
           else
             downs += seg->max_coord-seg->min_coord;
+#endif
 
           /* check for links -- if seg->serif is set, then seg->link must */
           /* be ignored                                                   */
@@ -1317,7 +1366,7 @@
 
   FT_LOCAL_DEF( FT_Error )
   af_latin2_hints_detect_features( AF_GlyphHints  hints,
-                                  AF_Dimension   dim )
+                                   AF_Dimension   dim )
   {
     FT_Error  error;
 
@@ -1335,12 +1384,12 @@
 
   FT_LOCAL_DEF( void )
   af_latin2_hints_compute_blue_edges( AF_GlyphHints    hints,
-                                     AF_LatinMetrics  metrics )
+                                      AF_LatinMetrics  metrics )
   {
-    AF_AxisHints  axis       = &hints->axis[ AF_DIMENSION_VERT ];
+    AF_AxisHints  axis       = &hints->axis[AF_DIMENSION_VERT];
     AF_Edge       edge       = axis->edges;
     AF_Edge       edge_limit = edge + axis->num_edges;
-    AF_LatinAxis  latin      = &metrics->axis[ AF_DIMENSION_VERT ];
+    AF_LatinAxis  latin      = &metrics->axis[AF_DIMENSION_VERT];
     FT_Fixed      scale      = latin->scale;
     FT_Pos        best_dist0;  /* initial threshold */
 
@@ -1395,7 +1444,7 @@
             compare = &blue->ref;
 
           dist = edge->fpos - compare->org;
-          if (dist < 0)
+          if ( dist < 0 )
             dist = -dist;
 
           dist = FT_MulFix( dist, scale );
@@ -1441,14 +1490,14 @@
 
   static FT_Error
   af_latin2_hints_init( AF_GlyphHints    hints,
-                       AF_LatinMetrics  metrics )
+                        AF_LatinMetrics  metrics )
   {
     FT_Render_Mode  mode;
     FT_UInt32       scaler_flags, other_flags;
     FT_Face         face = metrics->root.scaler.face;
 
 
-    af_glyph_hints_rescale( hints, (AF_ScriptMetrics)metrics );
+    af_glyph_hints_rescale( hints, (AF_StyleMetrics)metrics );
 
     /*
      *  correct x_scale and y_scale if needed, since they may have
@@ -1462,7 +1511,7 @@
     /* compute flags depending on render mode, etc. */
     mode = metrics->root.scaler.render_mode;
 
-#if 0 /* #ifdef AF_USE_WARPER */
+#if 0 /* #ifdef AF_CONFIG_OPTION_USE_WARPER */
     if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V )
     {
       metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL;
@@ -1499,8 +1548,8 @@
      *  In `light' hinting mode we disable horizontal hinting completely.
      *  We also do it if the face is italic.
      */
-    if ( mode == FT_RENDER_MODE_LIGHT                    ||
-         (face->style_flags & FT_STYLE_FLAG_ITALIC) != 0 )
+    if ( mode == FT_RENDER_MODE_LIGHT                      ||
+         ( face->style_flags & FT_STYLE_FLAG_ITALIC ) != 0 )
       scaler_flags |= AF_SCALER_FLAG_NO_HORIZONTAL;
 
     hints->scaler_flags = scaler_flags;
@@ -1523,8 +1572,8 @@
 
   static FT_Pos
   af_latin2_snap_width( AF_Width  widths,
-                       FT_Int    count,
-                       FT_Pos    width )
+                        FT_Int    count,
+                        FT_Pos    width )
   {
     int     n;
     FT_Pos  best      = 64 + 32 + 2;
@@ -1570,10 +1619,10 @@
 
   static FT_Pos
   af_latin2_compute_stem_width( AF_GlyphHints  hints,
-                               AF_Dimension   dim,
-                               FT_Pos         width,
-                               AF_Edge_Flags  base_flags,
-                               AF_Edge_Flags  stem_flags )
+                                AF_Dimension   dim,
+                                FT_Pos         width,
+                                AF_Edge_Flags  base_flags,
+                                AF_Edge_Flags  stem_flags )
   {
     AF_LatinMetrics  metrics  = (AF_LatinMetrics) hints->metrics;
     AF_LatinAxis     axis     = & metrics->axis[dim];
@@ -1581,8 +1630,8 @@
     FT_Int           sign     = 0;
     FT_Int           vertical = ( dim == AF_DIMENSION_VERT );
 
+    FT_UNUSED( base_flags );
 
-    FT_UNUSED(base_flags);
 
     if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) ||
           axis->extra_light                      )
@@ -1712,7 +1761,7 @@
             if ( delta < 0 )
               delta = -delta;
 
-            if (delta >= 16)
+            if ( delta >= 16 )
             {
               dist = org_dist;
               if ( dist < 48 )
@@ -1738,9 +1787,9 @@
 
   static void
   af_latin2_align_linked_edge( AF_GlyphHints  hints,
-                              AF_Dimension   dim,
-                              AF_Edge        base_edge,
-                              AF_Edge        stem_edge )
+                               AF_Dimension   dim,
+                               AF_Edge        base_edge,
+                               AF_Edge        stem_edge )
   {
     FT_Pos  dist = stem_edge->opos - base_edge->opos;
 
@@ -1752,21 +1801,21 @@
 
     stem_edge->pos = base_edge->pos + fitted_width;
 
-    AF_LOG(( "LINK: edge %d (opos=%.2f) linked to (%.2f), "
-             "dist was %.2f, now %.2f\n",
-             stem_edge-hints->axis[dim].edges, stem_edge->opos / 64.0,
-             stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 ));
+    FT_TRACE5(( "LINK: edge %d (opos=%.2f) linked to (%.2f), "
+                "dist was %.2f, now %.2f\n",
+                stem_edge-hints->axis[dim].edges, stem_edge->opos / 64.0,
+                stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 ));
   }
 
 
   static void
   af_latin2_align_serif_edge( AF_GlyphHints  hints,
-                             AF_Edge        base,
-                             AF_Edge        serif )
+                              AF_Edge        base,
+                              AF_Edge        serif )
   {
     FT_UNUSED( hints );
 
-    serif->pos = base->pos + (serif->opos - base->opos);
+    serif->pos = base->pos + ( serif->opos - base->opos );
   }
 
 
@@ -1783,7 +1832,7 @@
 
   FT_LOCAL_DEF( void )
   af_latin2_hint_edges( AF_GlyphHints  hints,
-                       AF_Dimension   dim )
+                        AF_Dimension   dim )
   {
     AF_AxisHints  axis       = &hints->axis[dim];
     AF_Edge       edges      = axis->edges;
@@ -1795,7 +1844,8 @@
 
 
 
-    AF_LOG(( "==== hinting %s edges =====\n", dim == AF_DIMENSION_HORZ ? "vertical" : "horizontal" ));
+    FT_TRACE5(( "==== hinting %s edges =====\n",
+                dim == AF_DIMENSION_HORZ ? "vertical" : "horizontal" ));
 
     /* we begin by aligning all stems relative to the blue zone */
     /* if needed -- that's only for horizontal edges            */
@@ -1829,10 +1879,10 @@
         if ( !edge1 )
           continue;
 
-        AF_LOG(( "BLUE: edge %d (opos=%.2f) snapped to (%.2f), "
-                 "was (%.2f)\n",
-                 edge1-edges, edge1->opos / 64.0, blue->fit / 64.0,
-                 edge1->pos / 64.0 ));
+        FT_TRACE5(( "BLUE: edge %d (opos=%.2f) snapped to (%.2f), "
+                    "was (%.2f)\n",
+                    edge1-edges, edge1->opos / 64.0, blue->fit / 64.0,
+                    edge1->pos / 64.0 ));
 
         edge1->pos    = blue->fit;
         edge1->flags |= AF_EDGE_DONE;
@@ -1847,9 +1897,10 @@
         {
           anchor = edge;
 
-          anchor_drift = (anchor->pos - anchor->opos);
-          if (edge2)
-            anchor_drift = (anchor_drift + (edge2->pos - edge2->opos)) >> 1;
+          anchor_drift = ( anchor->pos - anchor->opos );
+          if ( edge2 )
+            anchor_drift = ( anchor_drift +
+                             ( edge2->pos - edge2->opos ) ) >> 1;
         }
       }
     }
@@ -1877,7 +1928,7 @@
       /* this should not happen, but it's better to be safe */
       if ( edge2->blue_edge )
       {
-        AF_LOG(( "ASSERTION FAILED for edge %d\n", edge2-edges ));
+        FT_TRACE5(( "ASSERTION FAILED for edge %d\n", edge2-edges ));
 
         af_latin2_align_linked_edge( hints, dim, edge2, edge );
         edge->flags |= AF_EDGE_DONE;
@@ -1928,11 +1979,11 @@
         else
           edge->pos = FT_PIX_ROUND( edge->opos );
 
-        AF_LOG(( "ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f) "
-                 "snapped to (%.2f) (%.2f)\n",
-                 edge-edges, edge->opos / 64.0,
-                 edge2-edges, edge2->opos / 64.0,
-                 edge->pos / 64.0, edge2->pos / 64.0 ));
+        FT_TRACE5(( "ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f)"
+                    " snapped to (%.2f) (%.2f)\n",
+                    edge-edges, edge->opos / 64.0,
+                    edge2-edges, edge2->opos / 64.0,
+                    edge->pos / 64.0, edge2->pos / 64.0 ));
         anchor = edge;
 
         edge->flags |= AF_EDGE_DONE;
@@ -1941,10 +1992,10 @@
 
         edge2->flags |= AF_EDGE_DONE;
 
-        anchor_drift = ( (anchor->pos - anchor->opos) +
-                         (edge2->pos - edge2->opos)) >> 1;
+        anchor_drift = ( ( anchor->pos - anchor->opos ) +
+                         ( edge2->pos - edge2->opos ) ) >> 1;
 
-        AF_LOG(( "DRIFT: %.2f\n", anchor_drift/64.0 ));
+        FT_TRACE5(( "DRIFT: %.2f\n", anchor_drift/64.0 ));
       }
       else
       {
@@ -1961,15 +2012,16 @@
                    (AF_Edge_Flags)edge->flags,
                    (AF_Edge_Flags)edge2->flags );
 
-        org_left  = org_pos + ((org_len - cur_len) >> 1);
-        org_right = org_pos + ((org_len + cur_len) >> 1);
+        org_left  = org_pos + ( ( org_len - cur_len ) >> 1 );
+        org_right = org_pos + ( ( org_len + cur_len ) >> 1 );
 
-        AF_LOG(( "ALIGN: left=%.2f right=%.2f ", org_left/64.0, org_right/64.0 ));
+        FT_TRACE5(( "ALIGN: left=%.2f right=%.2f ",
+                    org_left / 64.0, org_right / 64.0 ));
         cur_center = org_center;
 
         if ( edge2->flags & AF_EDGE_DONE )
         {
-          AF_LOG(( "\n" ));
+          FT_TRACE5(( "\n" ));
           edge->pos = edge2->pos - cur_len;
         }
         else
@@ -1984,18 +2036,18 @@
           /* note: don't even try to fit tiny stems */
           if ( cur_len < 32 )
           {
-            AF_LOG(( "tiny stem\n" ));
+            FT_TRACE5(( "tiny stem\n" ));
             goto AlignStem;
           }
 
           /* if the span is within a single pixel, don't touch it */
-          if ( FT_PIX_FLOOR(org_left) == FT_PIX_CEIL(org_right) )
+          if ( FT_PIX_FLOOR( org_left ) == FT_PIX_CEIL( org_right ) )
           {
-            AF_LOG(( "single pixel stem\n" ));
+            FT_TRACE5(( "single pixel stem\n" ));
             goto AlignStem;
           }
 
-          if (cur_len <= 96)
+          if ( cur_len <= 96 )
           {
            /* we want to avoid the absolute worst case which is
             * when the left and right edges of the span each represent
@@ -2003,43 +2055,43 @@
             * to 25/75%, since this is much more pleasant to the eye with
             * very acceptable distortion
             */
-            FT_Pos  frac_left  = (org_left) & 63;
-            FT_Pos  frac_right = (org_right) & 63;
+            FT_Pos  frac_left  = org_left  & 63;
+            FT_Pos  frac_right = org_right & 63;
 
             if ( frac_left  >= 22 && frac_left  <= 42 &&
                  frac_right >= 22 && frac_right <= 42 )
             {
               org = frac_left;
-              fit = (org <= 32) ? 16 : 48;
-              delta = FT_ABS(fit - org);
+              fit = ( org <= 32 ) ? 16 : 48;
+              delta = FT_ABS( fit - org );
               displacements[count] = fit - org;
               scores[count++]      = delta;
-              AF_LOG(( "dispA=%.2f (%d) ", (fit - org)/64.0, delta ));
+              FT_TRACE5(( "dispA=%.2f (%d) ", ( fit - org ) / 64.0, delta ));
 
               org = frac_right;
-              fit = (org <= 32) ? 16 : 48;
-              delta = FT_ABS(fit - org);
+              fit = ( org <= 32 ) ? 16 : 48;
+              delta = FT_ABS( fit - org );
               displacements[count] = fit - org;
               scores[count++]     = delta;
-              AF_LOG(( "dispB=%.2f (%d) ", (fit - org)/64.0, delta ));
+              FT_TRACE5(( "dispB=%.2f (%d) ", ( fit - org ) / 64.0, delta ));
             }
           }
 
           /* snapping the left edge to the grid */
           org   = org_left;
-          fit   = FT_PIX_ROUND(org);
-          delta = FT_ABS(fit - org);
+          fit   = FT_PIX_ROUND( org );
+          delta = FT_ABS( fit - org );
           displacements[count] = fit - org;
           scores[count++]      = delta;
-          AF_LOG(( "dispC=%.2f (%d) ", (fit - org)/64.0, delta ));
+          FT_TRACE5(( "dispC=%.2f (%d) ", ( fit - org ) / 64.0, delta ));
 
           /* snapping the right edge to the grid */
           org   = org_right;
-          fit   = FT_PIX_ROUND(org);
-          delta = FT_ABS(fit - org);
+          fit   = FT_PIX_ROUND( org );
+          delta = FT_ABS( fit - org );
           displacements[count] = fit - org;
           scores[count++]      = delta;
-          AF_LOG(( "dispD=%.2f (%d) ", (fit - org)/64.0, delta ));
+          FT_TRACE5(( "dispD=%.2f (%d) ", ( fit - org ) / 64.0, delta ));
 
           /* now find the best displacement */
           {
@@ -2047,9 +2099,9 @@
             FT_Pos  best_disp  = displacements[0];
             FT_UInt nn;
 
-            for (nn = 1; nn < count; nn++)
+            for ( nn = 1; nn < count; nn++ )
             {
-              if (scores[nn] < best_score)
+              if ( scores[nn] < best_score )
               {
                 best_score = scores[nn];
                 best_disp  = displacements[nn];
@@ -2058,27 +2110,28 @@
 
             cur_center = org_center + best_disp;
           }
-          AF_LOG(( "\n" ));
+          FT_TRACE5(( "\n" ));
         }
 
       AlignStem:
-        edge->pos  = cur_center - (cur_len >> 1);
+        edge->pos  = cur_center - ( cur_len >> 1 );
         edge2->pos = edge->pos + cur_len;
 
-        AF_LOG(( "STEM1: %d (opos=%.2f) to %d (opos=%.2f) "
-                 "snapped to (%.2f) and (%.2f), org_len = %.2f cur_len=%.2f\n",
-                 edge-edges, edge->opos / 64.0,
-                 edge2-edges, edge2->opos / 64.0,
-                 edge->pos / 64.0, edge2->pos / 64.0,
-                 org_len / 64.0, cur_len / 64.0 ));
+        FT_TRACE5(( "STEM1: %d (opos=%.2f) to %d (opos=%.2f)"
+                    " snapped to (%.2f) and (%.2f),"
+                    " org_len=%.2f cur_len=%.2f\n",
+                    edge-edges, edge->opos / 64.0,
+                    edge2-edges, edge2->opos / 64.0,
+                    edge->pos / 64.0, edge2->pos / 64.0,
+                    org_len / 64.0, cur_len / 64.0 ));
 
         edge->flags  |= AF_EDGE_DONE;
         edge2->flags |= AF_EDGE_DONE;
 
         if ( edge > edges && edge->pos < edge[-1].pos )
         {
-          AF_LOG(( "BOUND: %d (pos=%.2f) to (%.2f)\n",
-                   edge-edges, edge->pos / 64.0, edge[-1].pos / 64.0 ));
+          FT_TRACE5(( "BOUND: %d (pos=%.2f) to (%.2f)\n",
+                      edge-edges, edge->pos / 64.0, edge[-1].pos / 64.0 ));
           edge->pos = edge[-1].pos;
         }
       }
@@ -2178,16 +2231,17 @@
         if ( delta < 64 + 16 )
         {
           af_latin2_align_serif_edge( hints, edge->serif, edge );
-          AF_LOG(( "SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f) "
-                   "aligned to (%.2f)\n",
-                   edge-edges, edge->opos / 64.0,
-                   edge->serif - edges, edge->serif->opos / 64.0,
-                   edge->pos / 64.0 ));
+          FT_TRACE5(( "SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f)"
+                      " aligned to (%.2f)\n",
+                      edge-edges, edge->opos / 64.0,
+                      edge->serif - edges, edge->serif->opos / 64.0,
+                      edge->pos / 64.0 ));
         }
         else if ( !anchor )
         {
-          AF_LOG(( "SERIF_ANCHOR: edge %d (opos=%.2f) snapped to (%.2f)\n",
-                   edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
+          FT_TRACE5(( "SERIF_ANCHOR: edge %d (opos=%.2f)"
+                      " snapped to (%.2f)\n",
+                      edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
           edge->pos = FT_PIX_ROUND( edge->opos );
           anchor    = edge;
         }
@@ -2214,15 +2268,19 @@
                           FT_MulDiv( edge->opos - before->opos,
                                      after->pos - before->pos,
                                      after->opos - before->opos );
-            AF_LOG(( "SERIF_LINK1: edge %d (opos=%.2f) snapped to (%.2f) from %d (opos=%.2f)\n",
-                     edge-edges, edge->opos / 64.0, edge->pos / 64.0, before - edges, before->opos / 64.0 ));
+            FT_TRACE5(( "SERIF_LINK1: edge %d (opos=%.2f) snapped to (%.2f)"
+                        " from %d (opos=%.2f)\n",
+                        edge-edges, edge->opos / 64.0, edge->pos / 64.0,
+                        before - edges, before->opos / 64.0 ));
           }
           else
           {
-              edge->pos = anchor->pos + (( edge->opos - anchor->opos + 16) & ~31);
+            edge->pos = anchor->pos +
+                        ( ( edge->opos - anchor->opos + 16 ) & ~31 );
 
-            AF_LOG(( "SERIF_LINK2: edge %d (opos=%.2f) snapped to (%.2f)\n",
-                     edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
+            FT_TRACE5(( "SERIF_LINK2: edge %d (opos=%.2f)"
+                        " snapped to (%.2f)\n",
+                        edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
           }
         }
 
@@ -2242,19 +2300,19 @@
 
   static FT_Error
   af_latin2_hints_apply( AF_GlyphHints    hints,
-                        FT_Outline*      outline,
-                        AF_LatinMetrics  metrics )
+                         FT_Outline*      outline,
+                         AF_LatinMetrics  metrics )
   {
     FT_Error  error;
     int       dim;
 
 
-    error = af_glyph_hints_reload( hints, outline, 1 );
+    error = af_glyph_hints_reload( hints, outline );
     if ( error )
       goto Exit;
 
     /* analyze glyph outline */
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
     if ( metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ||
          AF_HINTS_DO_HORIZONTAL( hints ) )
 #else
@@ -2278,7 +2336,7 @@
     /* grid-fit the outline */
     for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
     {
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
       if ( ( dim == AF_DIMENSION_HORZ &&
              metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ) )
       {
@@ -2318,26 +2376,19 @@
   /*************************************************************************/
 
 
-  static const AF_Script_UniRangeRec  af_latin2_uniranges[] =
-  {
-    AF_UNIRANGE_REC( 32UL,  127UL ),    /* XXX: TODO: Add new Unicode ranges here! */
-    AF_UNIRANGE_REC( 160UL, 255UL ),
-    AF_UNIRANGE_REC( 0UL,   0UL )
-  };
-
+  AF_DEFINE_WRITING_SYSTEM_CLASS(
+    af_latin2_writing_system_class,
 
-  AF_DEFINE_SCRIPT_CLASS(af_latin2_script_class,
-    AF_SCRIPT_LATIN2,
-    af_latin2_uniranges,
+    AF_WRITING_SYSTEM_LATIN2,
 
-    sizeof( AF_LatinMetricsRec ),
+    sizeof ( AF_LatinMetricsRec ),
 
-    (AF_Script_InitMetricsFunc) af_latin2_metrics_init,
-    (AF_Script_ScaleMetricsFunc)af_latin2_metrics_scale,
-    (AF_Script_DoneMetricsFunc) NULL,
+    (AF_WritingSystem_InitMetricsFunc) af_latin2_metrics_init,
+    (AF_WritingSystem_ScaleMetricsFunc)af_latin2_metrics_scale,
+    (AF_WritingSystem_DoneMetricsFunc) NULL,
 
-    (AF_Script_InitHintsFunc)   af_latin2_hints_init,
-    (AF_Script_ApplyHintsFunc)  af_latin2_hints_apply
+    (AF_WritingSystem_InitHintsFunc)   af_latin2_hints_init,
+    (AF_WritingSystem_ApplyHintsFunc)  af_latin2_hints_apply
   )
 
 
diff --git a/src/3rdparty/freetype/src/autofit/aflatin2.h b/src/3rdparty/freetype/src/autofit/aflatin2.h
index 925c6214db..b5d252a91b 100644
--- a/src/3rdparty/freetype/src/autofit/aflatin2.h
+++ b/src/3rdparty/freetype/src/autofit/aflatin2.h
@@ -2,9 +2,10 @@
 /*                                                                         */
 /*  aflatin2.h                                                             */
 /*                                                                         */
-/*    Auto-fitter hinting routines for latin script (specification).       */
+/*    Auto-fitter hinting routines for latin writing system                */
+/*    (specification).                                                     */
 /*                                                                         */
-/*  Copyright 2003, 2004, 2005, 2006, 2007 by                              */
+/*  Copyright 2003-2007, 2012, 2013 by                                     */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -25,9 +26,10 @@
 FT_BEGIN_HEADER
 
 
-  /* the latin-specific script class */
+  /* the `latin' writing system */
+
+  AF_DECLARE_WRITING_SYSTEM_CLASS( af_latin2_writing_system_class )
 
-  AF_DECLARE_SCRIPT_CLASS(af_latin2_script_class)
 
 /* */
 
diff --git a/src/3rdparty/freetype/src/autofit/afloader.c b/src/3rdparty/freetype/src/autofit/afloader.c
index 6dd9f2a314..fb15c87f0e 100644
--- a/src/3rdparty/freetype/src/autofit/afloader.c
+++ b/src/3rdparty/freetype/src/autofit/afloader.c
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    Auto-fitter glyph loading routines (body).                           */
 /*                                                                         */
-/*  Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 by                  */
+/*  Copyright 2003-2009, 2011-2014 by                                      */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -16,31 +16,41 @@
 /***************************************************************************/
 
 
+#include "afglobal.h"
 #include "afloader.h"
 #include "afhints.h"
-#include "afglobal.h"
 #include "aferrors.h"
+#include "afmodule.h"
+#include "afpic.h"
 
 
+  /* Initialize glyph loader. */
+
   FT_LOCAL_DEF( FT_Error )
-  af_loader_init( AF_Loader  loader,
-                  FT_Memory  memory )
+  af_loader_init( AF_Module  module )
   {
+    AF_Loader  loader = module->loader;
+    FT_Memory  memory = module->root.library->memory;
+
+
     FT_ZERO( loader );
 
     af_glyph_hints_init( &loader->hints, memory );
-#ifdef AF_DEBUG
+#ifdef FT_DEBUG_AUTOFIT
     _af_debug_hints = &loader->hints;
 #endif
     return FT_GlyphLoader_New( memory, &loader->gloader );
   }
 
 
+  /* Reset glyph loader and compute globals if necessary. */
+
   FT_LOCAL_DEF( FT_Error )
-  af_loader_reset( AF_Loader  loader,
+  af_loader_reset( AF_Module  module,
                    FT_Face    face )
   {
-    FT_Error  error = AF_Err_Ok;
+    FT_Error   error  = FT_Err_Ok;
+    AF_Loader  loader = module->loader;
 
 
     loader->face    = face;
@@ -50,7 +60,7 @@
 
     if ( loader->globals == NULL )
     {
-      error = af_face_globals_new( face, &loader->globals );
+      error = af_face_globals_new( face, &loader->globals, module );
       if ( !error )
       {
         face->autohint.data =
@@ -64,15 +74,20 @@
   }
 
 
+  /* Finalize glyph loader. */
+
   FT_LOCAL_DEF( void )
-  af_loader_done( AF_Loader  loader )
+  af_loader_done( AF_Module  module )
   {
+    AF_Loader  loader = module->loader;
+
+
     af_glyph_hints_done( &loader->hints );
 
     loader->face    = NULL;
     loader->globals = NULL;
 
-#ifdef AF_DEBUG
+#ifdef FT_DEBUG_AUTOFIT
     _af_debug_hints = NULL;
 #endif
     FT_GlyphLoader_Done( loader->gloader );
@@ -80,6 +95,10 @@
   }
 
 
+  /* Load a single glyph component.  This routine calls itself */
+  /* recursively, if necessary, and does the main work of      */
+  /* `af_loader_load_glyph.'                                   */
+
   static FT_Error
   af_loader_load_g( AF_Loader  loader,
                     AF_Scaler  scaler,
@@ -90,13 +109,15 @@
     FT_Error          error;
     FT_Face           face     = loader->face;
     FT_GlyphLoader    gloader  = loader->gloader;
-    AF_ScriptMetrics  metrics  = loader->metrics;
+    AF_StyleMetrics   metrics  = loader->metrics;
     AF_GlyphHints     hints    = &loader->hints;
     FT_GlyphSlot      slot     = face->glyph;
     FT_Slot_Internal  internal = slot->internal;
+    FT_Int32          flags;
 
 
-    error = FT_Load_Glyph( face, glyph_index, load_flags );
+    flags = load_flags | FT_LOAD_LINEAR_DESIGN;
+    error = FT_Load_Glyph( face, glyph_index, flags );
     if ( error )
       goto Exit;
 
@@ -110,14 +131,10 @@
       loader->trans_delta  = internal->glyph_delta;
 
       inverse = loader->trans_matrix;
-      FT_Matrix_Invert( &inverse );
-      FT_Vector_Transform( &loader->trans_delta, &inverse );
+      if ( !FT_Matrix_Invert( &inverse ) )
+        FT_Vector_Transform( &loader->trans_delta, &inverse );
     }
 
-    /* set linear metrics */
-    slot->linearHoriAdvance = slot->metrics.horiAdvance;
-    slot->linearVertAdvance = slot->metrics.vertAdvance;
-
     switch ( slot->format )
     {
     case FT_GLYPH_FORMAT_OUTLINE:
@@ -127,8 +144,8 @@
                               loader->trans_delta.x,
                               loader->trans_delta.y );
 
-      /* copy the outline points in the loader's current               */
-      /* extra points which is used to keep original glyph coordinates */
+      /* copy the outline points in the loader's current                */
+      /* extra points which are used to keep original glyph coordinates */
       error = FT_GLYPHLOADER_CHECK_POINTS( gloader,
                                            slot->outline.n_points + 4,
                                            slot->outline.n_contours );
@@ -164,13 +181,23 @@
 
       /* now load the slot image into the auto-outline and run the */
       /* automatic hinting process                                 */
-      if ( metrics->clazz->script_hints_apply )
-        metrics->clazz->script_hints_apply( hints,
-                                            &gloader->current.outline,
-                                            metrics );
+      {
+#ifdef FT_CONFIG_OPTION_PIC
+        AF_FaceGlobals         globals = loader->globals;
+#endif
+        AF_StyleClass          style_class = metrics->style_class;
+        AF_WritingSystemClass  writing_system_class =
+          AF_WRITING_SYSTEM_CLASSES_GET[style_class->writing_system];
 
-      /* we now need to hint the metrics according to the change in */
-      /* width/positioning that occurred during the hinting process */
+
+        if ( writing_system_class->style_hints_apply )
+          writing_system_class->style_hints_apply( hints,
+                                                   &gloader->current.outline,
+                                                   metrics );
+      }
+
+      /* we now need to adjust the metrics according to the change in */
+      /* width/positioning that occurred during the hinting process   */
       if ( scaler->render_mode != FT_RENDER_MODE_LIGHT )
       {
         FT_Pos        old_rsb, old_lsb, new_lsb;
@@ -265,7 +292,7 @@
         gloader->current.num_subglyphs = num_subglyphs;
         num_base_subgs                 = gloader->base.num_subglyphs;
 
-        /* now, read each subglyph independently */
+        /* now read each subglyph independently */
         for ( nn = 0; nn < num_subglyphs; nn++ )
         {
           FT_Vector  pp1, pp2;
@@ -291,12 +318,7 @@
           /* recompute subglyph pointer */
           subglyph = gloader->base.subglyphs + num_base_subgs + nn;
 
-          if ( subglyph->flags & FT_SUBGLYPH_FLAG_USE_MY_METRICS )
-          {
-            pp1 = loader->pp1;
-            pp2 = loader->pp2;
-          }
-          else
+          if ( !( subglyph->flags & FT_SUBGLYPH_FLAG_USE_MY_METRICS ) )
           {
             loader->pp1 = pp1;
             loader->pp2 = pp2;
@@ -305,7 +327,7 @@
           num_points     = gloader->base.outline.n_points;
           num_new_points = num_points - num_base_points;
 
-          /* now perform the transform required for this subglyph */
+          /* now perform the transformation required for this subglyph */
 
           if ( subglyph->flags & ( FT_SUBGLYPH_FLAG_SCALE    |
                                    FT_SUBGLYPH_FLAG_XY_SCALE |
@@ -333,14 +355,14 @@
             if ( start_point + k >= num_base_points         ||
                                l >= (FT_UInt)num_new_points )
             {
-              error = AF_Err_Invalid_Composite;
+              error = FT_THROW( Invalid_Composite );
               goto Exit;
             }
 
             l += num_base_points;
 
-            /* for now, only use the current point coordinates;    */
-            /* we may consider another approach in the near future */
+            /* for now, only use the current point coordinates; */
+            /* we eventually may consider another approach      */
             p1 = gloader->base.outline.points + start_point + k;
             p2 = gloader->base.outline.points + start_point + l;
 
@@ -371,7 +393,7 @@
 
     default:
       /* we don't support other formats (yet?) */
-      error = AF_Err_Unimplemented_Feature;
+      error = FT_THROW( Unimplemented_Feature );
     }
 
   Hint_Metrics:
@@ -423,9 +445,10 @@
         slot->metrics.horiAdvance = FT_MulFix( slot->metrics.horiAdvance,
                                                x_scale );
 #else
-      if ( FT_IS_FIXED_WIDTH( slot->face )                              ||
-           ( af_face_globals_is_digit( loader->globals, glyph_index ) &&
-             metrics->digits_have_same_width                          ) )
+      if ( scaler->render_mode != FT_RENDER_MODE_LIGHT                      &&
+           ( FT_IS_FIXED_WIDTH( slot->face )                              ||
+             ( af_face_globals_is_digit( loader->globals, glyph_index ) &&
+               metrics->digits_have_same_width                          ) ) )
       {
         slot->metrics.horiAdvance = FT_MulFix( slot->metrics.horiAdvance,
                                                metrics->scaler.x_scale );
@@ -444,7 +467,7 @@
 #endif
 
       slot->metrics.vertAdvance = FT_MulFix( slot->metrics.vertAdvance,
-                                              metrics->scaler.y_scale );
+                                             metrics->scaler.y_scale );
 
       slot->metrics.horiAdvance = FT_PIX_ROUND( slot->metrics.horiAdvance );
       slot->metrics.vertAdvance = FT_PIX_ROUND( slot->metrics.vertAdvance );
@@ -455,32 +478,37 @@
       if ( error )
         goto Exit;
 
-      slot->outline = internal->loader->base.outline;
+      /* reassign all outline fields except flags to protect them */
+      slot->outline.n_contours = internal->loader->base.outline.n_contours;
+      slot->outline.n_points   = internal->loader->base.outline.n_points;
+      slot->outline.points     = internal->loader->base.outline.points;
+      slot->outline.tags       = internal->loader->base.outline.tags;
+      slot->outline.contours   = internal->loader->base.outline.contours;
+
       slot->format  = FT_GLYPH_FORMAT_OUTLINE;
     }
 
-#ifdef DEBUG_HINTER
-    af_debug_hinter = hinter;
-#endif
-
   Exit:
     return error;
   }
 
 
+  /* Load a glyph. */
+
   FT_LOCAL_DEF( FT_Error )
-  af_loader_load_glyph( AF_Loader  loader,
+  af_loader_load_glyph( AF_Module  module,
                         FT_Face    face,
                         FT_UInt    gindex,
-                        FT_UInt32  load_flags )
+                        FT_Int32   load_flags )
   {
     FT_Error      error;
-    FT_Size       size = face->size;
+    FT_Size       size   = face->size;
+    AF_Loader     loader = module->loader;
     AF_ScalerRec  scaler;
 
 
     if ( !size )
-      return AF_Err_Invalid_Argument;
+      return FT_THROW( Invalid_Size_Handle );
 
     FT_ZERO( &scaler );
 
@@ -493,37 +521,45 @@
     scaler.render_mode = FT_LOAD_TARGET_MODE( load_flags );
     scaler.flags       = 0;  /* XXX: fix this */
 
-    error = af_loader_reset( loader, face );
+    error = af_loader_reset( module, face );
     if ( !error )
     {
-      AF_ScriptMetrics  metrics;
-      FT_UInt           options = 0;
+      AF_StyleMetrics  metrics;
+      FT_UInt          options = AF_STYLE_NONE_DFLT;
 
 
 #ifdef FT_OPTION_AUTOFIT2
-      /* XXX: undocumented hook to activate the latin2 hinter */
+      /* XXX: undocumented hook to activate the latin2 writing system */
       if ( load_flags & ( 1UL << 20 ) )
-        options = 2;
+        options = AF_STYLE_LTN2_DFLT;
 #endif
 
       error = af_face_globals_get_metrics( loader->globals, gindex,
                                            options, &metrics );
       if ( !error )
       {
+#ifdef FT_CONFIG_OPTION_PIC
+        AF_FaceGlobals         globals = loader->globals;
+#endif
+        AF_StyleClass          style_class = metrics->style_class;
+        AF_WritingSystemClass  writing_system_class =
+          AF_WRITING_SYSTEM_CLASSES_GET[style_class->writing_system];
+
+
         loader->metrics = metrics;
 
-        if ( metrics->clazz->script_metrics_scale )
-          metrics->clazz->script_metrics_scale( metrics, &scaler );
+        if ( writing_system_class->style_metrics_scale )
+          writing_system_class->style_metrics_scale( metrics, &scaler );
         else
           metrics->scaler = scaler;
 
         load_flags |=  FT_LOAD_NO_SCALE | FT_LOAD_IGNORE_TRANSFORM;
         load_flags &= ~FT_LOAD_RENDER;
 
-        if ( metrics->clazz->script_hints_init )
+        if ( writing_system_class->style_hints_init )
         {
-          error = metrics->clazz->script_hints_init( &loader->hints,
-                                                     metrics );
+          error = writing_system_class->style_hints_init( &loader->hints,
+                                                          metrics );
           if ( error )
             goto Exit;
         }
diff --git a/src/3rdparty/freetype/src/autofit/afloader.h b/src/3rdparty/freetype/src/autofit/afloader.h
index fa67c10ffe..9601e24fce 100644
--- a/src/3rdparty/freetype/src/autofit/afloader.h
+++ b/src/3rdparty/freetype/src/autofit/afloader.h
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    Auto-fitter glyph loading routines (specification).                  */
 /*                                                                         */
-/*  Copyright 2003, 2004, 2005 by                                          */
+/*  Copyright 2003-2005, 2011-2013 by                                      */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -16,8 +16,8 @@
 /***************************************************************************/
 
 
-#ifndef __AF_LOADER_H__
-#define __AF_LOADER_H__
+#ifndef __AFLOADER_H__
+#define __AFLOADER_H__
 
 #include "afhints.h"
 #include "afglobal.h"
@@ -25,13 +25,26 @@
 
 FT_BEGIN_HEADER
 
-  typedef struct AF_LoaderRec_
+  typedef struct AF_ModuleRec_*  AF_Module;
+
+  /*
+   *  The autofitter module's (global) data structure to communicate with
+   *  actual fonts.  If necessary, `local' data like the current face, the
+   *  current face's auto-hint data, or the current glyph's parameters
+   *  relevant to auto-hinting are `swapped in'.  Cf. functions like
+   *  `af_loader_reset' and `af_loader_load_g'.
+   */
+
+  typedef struct  AF_LoaderRec_
   {
-    FT_Face           face;           /* current face */
-    AF_FaceGlobals    globals;        /* current face globals */
-    FT_GlyphLoader    gloader;        /* glyph loader */
+    /* current face data */
+    FT_Face           face;
+    AF_FaceGlobals    globals;
+
+    /* current glyph data */
+    FT_GlyphLoader    gloader;
     AF_GlyphHintsRec  hints;
-    AF_ScriptMetrics  metrics;
+    AF_StyleMetrics   metrics;
     FT_Bool           transformed;
     FT_Matrix         trans_matrix;
     FT_Vector         trans_delta;
@@ -43,31 +56,30 @@ FT_BEGIN_HEADER
 
 
   FT_LOCAL( FT_Error )
-  af_loader_init( AF_Loader  loader,
-                  FT_Memory  memory );
+  af_loader_init( AF_Module  module );
 
 
   FT_LOCAL( FT_Error )
-  af_loader_reset( AF_Loader  loader,
+  af_loader_reset( AF_Module  module,
                    FT_Face    face );
 
 
   FT_LOCAL( void )
-  af_loader_done( AF_Loader  loader );
+  af_loader_done( AF_Module  module );
 
 
   FT_LOCAL( FT_Error )
-  af_loader_load_glyph( AF_Loader  loader,
+  af_loader_load_glyph( AF_Module  module,
                         FT_Face    face,
                         FT_UInt    gindex,
-                        FT_UInt32  load_flags );
+                        FT_Int32   load_flags );
 
 /* */
 
 
 FT_END_HEADER
 
-#endif /* __AF_LOADER_H__ */
+#endif /* __AFLOADER_H__ */
 
 
 /* END */
diff --git a/src/3rdparty/freetype/src/autofit/afmodule.c b/src/3rdparty/freetype/src/autofit/afmodule.c
index ec2d707c9f..641e03ea2b 100644
--- a/src/3rdparty/freetype/src/autofit/afmodule.c
+++ b/src/3rdparty/freetype/src/autofit/afmodule.c
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    Auto-fitter module implementation (body).                            */
 /*                                                                         */
-/*  Copyright 2003, 2004, 2005, 2006 by                                    */
+/*  Copyright 2003-2006, 2009, 2011-2014 by                                */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -16,12 +16,13 @@
 /***************************************************************************/
 
 
+#include "afglobal.h"
 #include "afmodule.h"
 #include "afloader.h"
+#include "aferrors.h"
 #include "afpic.h"
 
-#ifdef AF_DEBUG
-  int    _af_debug;
+#ifdef FT_DEBUG_AUTOFIT
   int    _af_debug_disable_horz_hints;
   int    _af_debug_disable_vert_hints;
   int    _af_debug_disable_blue_hints;
@@ -29,66 +30,280 @@
 #endif
 
 #include FT_INTERNAL_OBJECTS_H
+#include FT_INTERNAL_DEBUG_H
+#include FT_AUTOHINTER_H
+#include FT_SERVICE_PROPERTIES_H
 
 
-  typedef struct  FT_AutofitterRec_
+  /*************************************************************************/
+  /*                                                                       */
+  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
+  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
+  /* messages during execution.                                            */
+  /*                                                                       */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  trace_afmodule
+
+
+  static FT_Error
+  af_property_get_face_globals( FT_Face          face,
+                                AF_FaceGlobals*  aglobals,
+                                AF_Module        module )
+  {
+    FT_Error        error = FT_Err_Ok;
+    AF_FaceGlobals  globals;
+
+
+    if ( !face )
+      return FT_THROW( Invalid_Face_Handle );
+
+    globals = (AF_FaceGlobals)face->autohint.data;
+    if ( !globals )
+    {
+      /* trigger computation of the global style data */
+      /* in case it hasn't been done yet              */
+      error = af_face_globals_new( face, &globals, module );
+      if ( !error )
+      {
+        face->autohint.data =
+          (FT_Pointer)globals;
+        face->autohint.finalizer =
+          (FT_Generic_Finalizer)af_face_globals_free;
+      }
+    }
+
+    if ( !error )
+      *aglobals = globals;
+
+    return error;
+  }
+
+
+  static FT_Error
+  af_property_set( FT_Module    ft_module,
+                   const char*  property_name,
+                   const void*  value )
+  {
+    FT_Error   error  = FT_Err_Ok;
+    AF_Module  module = (AF_Module)ft_module;
+
+
+    if ( !ft_strcmp( property_name, "fallback-script" ) )
+    {
+      FT_UInt*  fallback_script = (FT_UInt*)value;
+
+      FT_UInt  ss;
+
+
+      /* We translate the fallback script to a fallback style that uses */
+      /* `fallback-script' as its script and `AF_COVERAGE_NONE' as its  */
+      /* coverage value.                                                */
+      for ( ss = 0; AF_STYLE_CLASSES_GET[ss]; ss++ )
+      {
+        AF_StyleClass  style_class = AF_STYLE_CLASSES_GET[ss];
+
+
+        if ( (FT_UInt)style_class->script == *fallback_script &&
+             style_class->coverage == AF_COVERAGE_DEFAULT     )
+        {
+          module->fallback_style = ss;
+          break;
+        }
+      }
+
+      if ( !AF_STYLE_CLASSES_GET[ss] )
+      {
+        FT_TRACE0(( "af_property_set: Invalid value %d for property `%s'\n",
+                    fallback_script, property_name ));
+        return FT_THROW( Invalid_Argument );
+      }
+
+      return error;
+    }
+    else if ( !ft_strcmp( property_name, "default-script" ) )
+    {
+      FT_UInt*  default_script = (FT_UInt*)value;
+
+
+      module->default_script = *default_script;
+
+      return error;
+    }
+    else if ( !ft_strcmp( property_name, "increase-x-height" ) )
+    {
+      FT_Prop_IncreaseXHeight*  prop = (FT_Prop_IncreaseXHeight*)value;
+      AF_FaceGlobals            globals;
+
+
+      error = af_property_get_face_globals( prop->face, &globals, module );
+      if ( !error )
+        globals->increase_x_height = prop->limit;
+
+      return error;
+    }
+
+    FT_TRACE0(( "af_property_set: missing property `%s'\n",
+                property_name ));
+    return FT_THROW( Missing_Property );
+  }
+
+
+  static FT_Error
+  af_property_get( FT_Module    ft_module,
+                   const char*  property_name,
+                   void*        value )
+  {
+    FT_Error   error          = FT_Err_Ok;
+    AF_Module  module         = (AF_Module)ft_module;
+    FT_UInt    fallback_style = module->fallback_style;
+    FT_UInt    default_script = module->default_script;
+
+
+    if ( !ft_strcmp( property_name, "glyph-to-script-map" ) )
+    {
+      FT_Prop_GlyphToScriptMap*  prop = (FT_Prop_GlyphToScriptMap*)value;
+      AF_FaceGlobals             globals;
+
+
+      error = af_property_get_face_globals( prop->face, &globals, module );
+      if ( !error )
+        prop->map = globals->glyph_styles;
+
+      return error;
+    }
+    else if ( !ft_strcmp( property_name, "fallback-script" ) )
+    {
+      FT_UInt*  val = (FT_UInt*)value;
+
+      AF_StyleClass  style_class = AF_STYLE_CLASSES_GET[fallback_style];
+
+
+      *val = style_class->script;
+
+      return error;
+    }
+    else if ( !ft_strcmp( property_name, "default-script" ) )
+    {
+      FT_UInt*  val = (FT_UInt*)value;
+
+
+      *val = default_script;
+
+      return error;
+    }
+    else if ( !ft_strcmp( property_name, "increase-x-height" ) )
+    {
+      FT_Prop_IncreaseXHeight*  prop = (FT_Prop_IncreaseXHeight*)value;
+      AF_FaceGlobals            globals;
+
+
+      error = af_property_get_face_globals( prop->face, &globals, module );
+      if ( !error )
+        prop->limit = globals->increase_x_height;
+
+      return error;
+    }
+
+
+    FT_TRACE0(( "af_property_get: missing property `%s'\n",
+                property_name ));
+    return FT_THROW( Missing_Property );
+  }
+
+
+  FT_DEFINE_SERVICE_PROPERTIESREC(
+    af_service_properties,
+    (FT_Properties_SetFunc)af_property_set,
+    (FT_Properties_GetFunc)af_property_get )
+
+
+  FT_DEFINE_SERVICEDESCREC1(
+    af_services,
+    FT_SERVICE_ID_PROPERTIES, &AF_SERVICE_PROPERTIES_GET )
+
+
+  FT_CALLBACK_DEF( FT_Module_Interface )
+  af_get_interface( FT_Module    module,
+                    const char*  module_interface )
   {
-    FT_ModuleRec  root;
-    AF_LoaderRec  loader[1];
+    /* AF_SERVICES_GET dereferences `library' in PIC mode */
+#ifdef FT_CONFIG_OPTION_PIC
+    FT_Library  library;
+
+
+    if ( !module )
+      return NULL;
+    library = module->library;
+    if ( !library )
+      return NULL;
+#else
+    FT_UNUSED( module );
+#endif
 
-  } FT_AutofitterRec, *FT_Autofitter;
+    return ft_service_list_lookup( AF_SERVICES_GET, module_interface );
+  }
 
 
   FT_CALLBACK_DEF( FT_Error )
-  af_autofitter_init( FT_Autofitter  module )
+  af_autofitter_init( FT_Module  ft_module )      /* AF_Module */
   {
-    return af_loader_init( module->loader, module->root.library->memory );
+    AF_Module  module = (AF_Module)ft_module;
+
+
+    module->fallback_style = AF_STYLE_FALLBACK;
+    module->default_script = AF_SCRIPT_DEFAULT;
+
+    return af_loader_init( module );
   }
 
 
   FT_CALLBACK_DEF( void )
-  af_autofitter_done( FT_Autofitter  module )
+  af_autofitter_done( FT_Module  ft_module )      /* AF_Module */
   {
-    af_loader_done( module->loader );
+    AF_Module  module = (AF_Module)ft_module;
+
+
+    af_loader_done( module );
   }
 
 
   FT_CALLBACK_DEF( FT_Error )
-  af_autofitter_load_glyph( FT_Autofitter  module,
-                            FT_GlyphSlot   slot,
-                            FT_Size        size,
-                            FT_UInt        glyph_index,
-                            FT_Int32       load_flags )
+  af_autofitter_load_glyph( AF_Module     module,
+                            FT_GlyphSlot  slot,
+                            FT_Size       size,
+                            FT_UInt       glyph_index,
+                            FT_Int32      load_flags )
   {
     FT_UNUSED( size );
 
-    return af_loader_load_glyph( module->loader, slot->face,
+    return af_loader_load_glyph( module, slot->face,
                                  glyph_index, load_flags );
   }
 
 
-  FT_DEFINE_AUTOHINTER_SERVICE(af_autofitter_service,
-    NULL,
-    NULL,
-    NULL,
-    (FT_AutoHinter_GlyphLoadFunc)af_autofitter_load_glyph
-  )
+  FT_DEFINE_AUTOHINTER_INTERFACE(
+    af_autofitter_interface,
+    NULL,                                                    /* reset_face */
+    NULL,                                              /* get_global_hints */
+    NULL,                                             /* done_global_hints */
+    (FT_AutoHinter_GlyphLoadFunc)af_autofitter_load_glyph )  /* load_glyph */
+
 
-  FT_DEFINE_MODULE(autofit_module_class,
+  FT_DEFINE_MODULE(
+    autofit_module_class,
 
     FT_MODULE_HINTER,
-    sizeof ( FT_AutofitterRec ),
+    sizeof ( AF_ModuleRec ),
 
     "autofitter",
     0x10000L,   /* version 1.0 of the autofitter  */
     0x20000L,   /* requires FreeType 2.0 or above */
 
-    (const void*)&AF_AF_AUTOFITTER_SERVICE_GET,
+    (const void*)&AF_INTERFACE_GET,
 
     (FT_Module_Constructor)af_autofitter_init,
     (FT_Module_Destructor) af_autofitter_done,
-    (FT_Module_Requester)  NULL
-  )
+    (FT_Module_Requester)  af_get_interface )
 
 
 /* END */
diff --git a/src/3rdparty/freetype/src/autofit/afmodule.h b/src/3rdparty/freetype/src/autofit/afmodule.h
index d9792399b6..20b7b9f665 100644
--- a/src/3rdparty/freetype/src/autofit/afmodule.h
+++ b/src/3rdparty/freetype/src/autofit/afmodule.h
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    Auto-fitter module implementation (specification).                   */
 /*                                                                         */
-/*  Copyright 2003, 2004, 2005 by                                          */
+/*  Copyright 2003-2005, 2009, 2012, 2013 by                               */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -23,9 +23,31 @@
 #include FT_INTERNAL_OBJECTS_H
 #include FT_MODULE_H
 
+#include "afloader.h"
+
 
 FT_BEGIN_HEADER
 
+
+  /*
+   *  This is the `extended' FT_Module structure which holds the
+   *  autofitter's global data.  Right before hinting a glyph, the data
+   *  specific to the glyph's face (blue zones, stem widths, etc.) are
+   *  loaded into `loader' (see function `af_loader_reset').
+   */
+
+  typedef struct  AF_ModuleRec_
+  {
+    FT_ModuleRec  root;
+
+    FT_UInt       fallback_style;
+    FT_UInt       default_script;
+
+    AF_LoaderRec  loader[1];
+
+  } AF_ModuleRec;
+
+
 FT_DECLARE_MODULE(autofit_module_class)
 
 
diff --git a/src/3rdparty/freetype/src/autofit/afpic.c b/src/3rdparty/freetype/src/autofit/afpic.c
index 76822c301a..cb29fd79fe 100644
--- a/src/3rdparty/freetype/src/autofit/afpic.c
+++ b/src/3rdparty/freetype/src/autofit/afpic.c
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    The FreeType position independent code services for autofit module.  */
 /*                                                                         */
-/*  Copyright 2009 by                                                      */
+/*  Copyright 2009-2014 by                                                 */
 /*  Oran Agra and Mickey Gabel.                                            */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -20,72 +20,132 @@
 #include FT_FREETYPE_H
 #include FT_INTERNAL_OBJECTS_H
 #include "afpic.h"
+#include "afglobal.h"
+#include "aferrors.h"
+
 
 #ifdef FT_CONFIG_OPTION_PIC
 
   /* forward declaration of PIC init functions from afmodule.c */
-  void FT_Init_Class_af_autofitter_service( FT_Library, FT_AutoHinter_ServiceRec*);
+  FT_Error
+  FT_Create_Class_af_services( FT_Library           library,
+                               FT_ServiceDescRec**  output_class );
 
-  /* forward declaration of PIC init functions from script classes */
-#include "aflatin.h"
-#include "aflatin2.h"
-#include "afcjk.h"
-#include "afdummy.h"
-#include "afindic.h"
+  void
+  FT_Destroy_Class_af_services( FT_Library          library,
+                                FT_ServiceDescRec*  clazz );
 
   void
-  autofit_module_class_pic_free( FT_Library library )
+  FT_Init_Class_af_service_properties( FT_Service_PropertiesRec*  clazz );
+
+  void FT_Init_Class_af_autofitter_interface(
+    FT_Library                   library,
+    FT_AutoHinter_InterfaceRec*  clazz );
+
+
+  /* forward declaration of PIC init functions from writing system classes */
+#undef  WRITING_SYSTEM
+#define WRITING_SYSTEM( ws, WS )  /* empty */
+
+#include "afwrtsys.h"
+
+
+  void
+  autofit_module_class_pic_free( FT_Library  library )
   {
-    FT_PIC_Container* pic_container = &library->pic_container;
-    FT_Memory memory = library->memory;
+    FT_PIC_Container*  pic_container = &library->pic_container;
+    FT_Memory          memory        = library->memory;
+
+
     if ( pic_container->autofit )
     {
-      FT_FREE( pic_container->autofit );
+      AFModulePIC*  container = (AFModulePIC*)pic_container->autofit;
+
+
+      if ( container->af_services )
+        FT_Destroy_Class_af_services( library,
+                                      container->af_services );
+      container->af_services = NULL;
+
+      FT_FREE( container );
       pic_container->autofit = NULL;
     }
   }
 
+
   FT_Error
-  autofit_module_class_pic_init( FT_Library library )
+  autofit_module_class_pic_init( FT_Library  library )
   {
-    FT_PIC_Container* pic_container = &library->pic_container;
-    FT_UInt         ss;
-    FT_Error        error = FT_Err_Ok;
-    AFModulePIC*  container;
-    FT_Memory memory = library->memory;
+    FT_PIC_Container*  pic_container = &library->pic_container;
+    FT_UInt            ss;
+    FT_Error           error         = FT_Err_Ok;
+    AFModulePIC*       container     = NULL;
+    FT_Memory          memory        = library->memory;
+
 
     /* allocate pointer, clear and set global container pointer */
     if ( FT_ALLOC ( container, sizeof ( *container ) ) )
       return error;
-    FT_MEM_SET( container, 0, sizeof(*container) );
+    FT_MEM_SET( container, 0, sizeof ( *container ) );
     pic_container->autofit = container;
 
-    /* initialize pointer table - this is how the module usually expects this data */
-    for ( ss = 0 ; ss < AF_SCRIPT_CLASSES_REC_COUNT ; ss++ )
-    {
-      container->af_script_classes[ss] = &container->af_script_classes_rec[ss];
-    }
-    container->af_script_classes[AF_SCRIPT_CLASSES_COUNT-1] = NULL;
-    
-    /* add call to initialization function when you add new scripts */
+    /* initialize pointer table -                       */
+    /* this is how the module usually expects this data */
+    error = FT_Create_Class_af_services( library,
+                                         &container->af_services );
+    if ( error )
+      goto Exit;
+
+    FT_Init_Class_af_service_properties( &container->af_service_properties );
+
+    for ( ss = 0; ss < AF_WRITING_SYSTEM_MAX; ss++ )
+      container->af_writing_system_classes[ss] =
+        &container->af_writing_system_classes_rec[ss];
+    container->af_writing_system_classes[AF_WRITING_SYSTEM_MAX] = NULL;
+
+    for ( ss = 0; ss < AF_SCRIPT_MAX; ss++ )
+      container->af_script_classes[ss] =
+        &container->af_script_classes_rec[ss];
+    container->af_script_classes[AF_SCRIPT_MAX] = NULL;
+
+    for ( ss = 0; ss < AF_STYLE_MAX; ss++ )
+      container->af_style_classes[ss] =
+        &container->af_style_classes_rec[ss];
+    container->af_style_classes[AF_STYLE_MAX] = NULL;
+
+#undef  WRITING_SYSTEM
+#define WRITING_SYSTEM( ws, WS )                             \
+        FT_Init_Class_af_ ## ws ## _writing_system_class(    \
+          &container->af_writing_system_classes_rec[ss++] );
+
     ss = 0;
-    FT_Init_Class_af_dummy_script_class(&container->af_script_classes_rec[ss++]);
-#ifdef FT_OPTION_AUTOFIT2
-    FT_Init_Class_af_latin2_script_class(&container->af_script_classes_rec[ss++]);
-#endif
-    FT_Init_Class_af_latin_script_class(&container->af_script_classes_rec[ss++]);
-    FT_Init_Class_af_cjk_script_class(&container->af_script_classes_rec[ss++]);
-    FT_Init_Class_af_indic_script_class(&container->af_script_classes_rec[ss++]);    
-
-    FT_Init_Class_af_autofitter_service(library, &container->af_autofitter_service);
-
-/*Exit:*/
-    if(error)
-      autofit_module_class_pic_free(library);
+#include "afwrtsys.h"
+
+#undef  SCRIPT
+#define SCRIPT( s, S, d, h, sc1, sc2, sc3 )          \
+        FT_Init_Class_af_ ## s ## _script_class(     \
+          &container->af_script_classes_rec[ss++] );
+
+    ss = 0;
+#include "afscript.h"
+
+#undef  STYLE
+#define STYLE( s, S, d, ws, sc, bss, c )            \
+        FT_Init_Class_af_ ## s ## _style_class(     \
+          &container->af_style_classes_rec[ss++] );
+
+    ss = 0;
+#include "afstyles.h"
+
+    FT_Init_Class_af_autofitter_interface(
+      library, &container->af_autofitter_interface );
+
+  Exit:
+    if ( error )
+      autofit_module_class_pic_free( library );
     return error;
   }
 
-
 #endif /* FT_CONFIG_OPTION_PIC */
 
 
diff --git a/src/3rdparty/freetype/src/autofit/afpic.h b/src/3rdparty/freetype/src/autofit/afpic.h
index 80e62d39a9..9a68b4a5a2 100644
--- a/src/3rdparty/freetype/src/autofit/afpic.h
+++ b/src/3rdparty/freetype/src/autofit/afpic.h
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    The FreeType position independent code services for autofit module.  */
 /*                                                                         */
-/*  Copyright 2009 by                                                      */
+/*  Copyright 2009, 2011-2013 by                                           */
 /*  Oran Agra and Mickey Gabel.                                            */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -19,38 +19,79 @@
 #ifndef __AFPIC_H__
 #define __AFPIC_H__
 
-  
+
 FT_BEGIN_HEADER
 
 #include FT_INTERNAL_PIC_H
 
+
 #ifndef FT_CONFIG_OPTION_PIC
 
-#define AF_SCRIPT_CLASSES_GET         af_script_classes
-#define AF_AF_AUTOFITTER_SERVICE_GET  af_autofitter_service
+#define AF_SERVICES_GET                af_services
+#define AF_SERVICE_PROPERTIES_GET      af_service_properties
+
+#define AF_WRITING_SYSTEM_CLASSES_GET  af_writing_system_classes
+#define AF_SCRIPT_CLASSES_GET          af_script_classes
+#define AF_STYLE_CLASSES_GET           af_style_classes
+#define AF_INTERFACE_GET               af_autofitter_interface
 
 #else /* FT_CONFIG_OPTION_PIC */
 
+  /* some include files required for members of AFModulePIC */
+#include FT_SERVICE_PROPERTIES_H
+
 #include "aftypes.h"
 
-/* increase these when you add new scripts, and update autofit_module_class_pic_init */
-#ifdef FT_OPTION_AUTOFIT2
-  #define AF_SCRIPT_CLASSES_COUNT     6
-#else
-  #define AF_SCRIPT_CLASSES_COUNT     5  
-#endif
-#define AF_SCRIPT_CLASSES_REC_COUNT  (AF_SCRIPT_CLASSES_COUNT-1)    
 
-  typedef struct AFModulePIC_
+  typedef struct  AFModulePIC_
   {
-    AF_ScriptClass    af_script_classes[AF_SCRIPT_CLASSES_COUNT];
-    AF_ScriptClassRec af_script_classes_rec[AF_SCRIPT_CLASSES_REC_COUNT];
-    FT_AutoHinter_ServiceRec af_autofitter_service;
+    FT_ServiceDescRec*          af_services;
+    FT_Service_PropertiesRec    af_service_properties;
+
+    AF_WritingSystemClass       af_writing_system_classes
+                                  [AF_WRITING_SYSTEM_MAX + 1];
+    AF_WritingSystemClassRec    af_writing_system_classes_rec
+                                  [AF_WRITING_SYSTEM_MAX];
+
+    AF_ScriptClass              af_script_classes
+                                  [AF_SCRIPT_MAX + 1];
+    AF_ScriptClassRec           af_script_classes_rec
+                                  [AF_SCRIPT_MAX];
+
+    AF_StyleClass               af_style_classes
+                                  [AF_STYLE_MAX + 1];
+    AF_StyleClassRec            af_style_classes_rec
+                                  [AF_STYLE_MAX];
+
+    FT_AutoHinter_InterfaceRec  af_autofitter_interface;
+
   } AFModulePIC;
 
-#define GET_PIC(lib)                  ((AFModulePIC*)((lib)->pic_container.autofit))
-#define AF_SCRIPT_CLASSES_GET         (GET_PIC(FT_FACE_LIBRARY(globals->face))->af_script_classes)
-#define AF_AF_AUTOFITTER_SERVICE_GET  (GET_PIC(library)->af_autofitter_service)
+
+#define GET_PIC( lib )  \
+          ( (AFModulePIC*)((lib)->pic_container.autofit) )
+
+#define AF_SERVICES_GET  \
+          ( GET_PIC( library )->af_services )
+#define AF_SERVICE_PROPERTIES_GET  \
+          ( GET_PIC( library )->af_service_properties )
+
+#define AF_WRITING_SYSTEM_CLASSES_GET  \
+          ( GET_PIC( FT_FACE_LIBRARY( globals->face ) )->af_writing_system_classes )
+#define AF_SCRIPT_CLASSES_GET  \
+          ( GET_PIC( FT_FACE_LIBRARY( globals->face ) )->af_script_classes )
+#define AF_STYLE_CLASSES_GET  \
+          ( GET_PIC( FT_FACE_LIBRARY( globals->face ) )->af_style_classes )
+#define AF_INTERFACE_GET  \
+          ( GET_PIC( library )->af_autofitter_interface )
+
+
+  /* see afpic.c for the implementation */
+  void
+  autofit_module_class_pic_free( FT_Library  library );
+
+  FT_Error
+  autofit_module_class_pic_init( FT_Library  library );
 
 #endif /* FT_CONFIG_OPTION_PIC */
 
diff --git a/src/3rdparty/freetype/src/autofit/afranges.c b/src/3rdparty/freetype/src/autofit/afranges.c
new file mode 100644
index 0000000000..b2c504d426
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afranges.c
@@ -0,0 +1,220 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afranges.c                                                             */
+/*                                                                         */
+/*    Auto-fitter Unicode script ranges (body).                            */
+/*                                                                         */
+/*  Copyright 2013, 2014 by                                                */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#include "afranges.h"
+
+
+  const AF_Script_UniRangeRec  af_cyrl_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x0400UL,  0x04FFUL ),  /* Cyrillic            */
+    AF_UNIRANGE_REC(  0x0500UL,  0x052FUL ),  /* Cyrillic Supplement */
+    AF_UNIRANGE_REC(  0x2DE0UL,  0x2DFFUL ),  /* Cyrillic Extended-A */
+    AF_UNIRANGE_REC(  0xA640UL,  0xA69FUL ),  /* Cyrillic Extended-B */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+  /* there are some characters in the Devanagari Unicode block that are    */
+  /* generic to Indic scripts; we omit them so that their presence doesn't */
+  /* trigger Devanagari                                                    */
+
+  const AF_Script_UniRangeRec  af_deva_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x0900UL,  0x093BUL ),  /* Devanagari       */
+    /* omitting U+093C nukta */
+    AF_UNIRANGE_REC(  0x093DUL,  0x0950UL ),
+    /* omitting U+0951 udatta, U+0952 anudatta */
+    AF_UNIRANGE_REC(  0x0953UL,  0x0963UL ),
+    /* omitting U+0964 danda, U+0965 double danda */
+    AF_UNIRANGE_REC(  0x0966UL,  0x097FUL ),
+    AF_UNIRANGE_REC(  0x20B9UL,  0x20B9UL ),  /* (new) Rupee sign */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+  const AF_Script_UniRangeRec  af_grek_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x0370UL,  0x03FFUL ),  /* Greek and Coptic */
+    AF_UNIRANGE_REC(  0x1F00UL,  0x1FFFUL ),  /* Greek Extended   */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+  const AF_Script_UniRangeRec  af_hebr_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x0590UL,  0x05FFUL ),  /* Hebrew                          */
+    AF_UNIRANGE_REC(  0xFB1DUL,  0xFB4FUL ),  /* Alphab. Present. Forms (Hebrew) */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+  const AF_Script_UniRangeRec  af_latn_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x0020UL,  0x007FUL ),  /* Basic Latin (no control chars)         */
+    AF_UNIRANGE_REC(  0x00A0UL,  0x00FFUL ),  /* Latin-1 Supplement (no control chars)  */
+    AF_UNIRANGE_REC(  0x0100UL,  0x017FUL ),  /* Latin Extended-A                       */
+    AF_UNIRANGE_REC(  0x0180UL,  0x024FUL ),  /* Latin Extended-B                       */
+    AF_UNIRANGE_REC(  0x0250UL,  0x02AFUL ),  /* IPA Extensions                         */
+    AF_UNIRANGE_REC(  0x02B0UL,  0x02FFUL ),  /* Spacing Modifier Letters               */
+    AF_UNIRANGE_REC(  0x0300UL,  0x036FUL ),  /* Combining Diacritical Marks            */
+    AF_UNIRANGE_REC(  0x1D00UL,  0x1D7FUL ),  /* Phonetic Extensions                    */
+    AF_UNIRANGE_REC(  0x1D80UL,  0x1DBFUL ),  /* Phonetic Extensions Supplement         */
+    AF_UNIRANGE_REC(  0x1DC0UL,  0x1DFFUL ),  /* Combining Diacritical Marks Supplement */
+    AF_UNIRANGE_REC(  0x1E00UL,  0x1EFFUL ),  /* Latin Extended Additional              */
+    AF_UNIRANGE_REC(  0x2000UL,  0x206FUL ),  /* General Punctuation                    */
+    AF_UNIRANGE_REC(  0x2070UL,  0x209FUL ),  /* Superscripts and Subscripts            */
+    AF_UNIRANGE_REC(  0x20A0UL,  0x20B8UL ),  /* Currency Symbols ...                   */
+    AF_UNIRANGE_REC(  0x20BAUL,  0x20CFUL ),  /* ... except new Rupee sign              */
+    AF_UNIRANGE_REC(  0x2150UL,  0x218FUL ),  /* Number Forms                           */
+    AF_UNIRANGE_REC(  0x2460UL,  0x24FFUL ),  /* Enclosed Alphanumerics                 */
+    AF_UNIRANGE_REC(  0x2C60UL,  0x2C7FUL ),  /* Latin Extended-C                       */
+    AF_UNIRANGE_REC(  0x2E00UL,  0x2E7FUL ),  /* Supplemental Punctuation               */
+    AF_UNIRANGE_REC(  0xA720UL,  0xA7FFUL ),  /* Latin Extended-D                       */
+    AF_UNIRANGE_REC(  0xFB00UL,  0xFB06UL ),  /* Alphab. Present. Forms (Latin Ligs)    */
+    AF_UNIRANGE_REC( 0x1D400UL, 0x1D7FFUL ),  /* Mathematical Alphanumeric Symbols      */
+    AF_UNIRANGE_REC( 0x1F100UL, 0x1F1FFUL ),  /* Enclosed Alphanumeric Supplement       */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+  const AF_Script_UniRangeRec  af_none_uniranges[] =
+  {
+    AF_UNIRANGE_REC( 0UL, 0UL )
+  };
+
+  const AF_Script_UniRangeRec  af_telu_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x0C00UL,  0x0C7FUL ),  /* Telugu */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+#ifdef AF_CONFIG_OPTION_INDIC
+
+  const AF_Script_UniRangeRec  af_beng_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x0980UL,  0x09FFUL ),  /* Bengali */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+  const AF_Script_UniRangeRec  af_gujr_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x0A80UL,  0x0AFFUL ),  /* Gujarati */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+  const AF_Script_UniRangeRec  af_guru_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x0A00UL,  0x0A7FUL ),  /* Gurmukhi */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+  const AF_Script_UniRangeRec  af_knda_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x0C80UL,  0x0CFFUL ),  /* Kannada */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+  const AF_Script_UniRangeRec  af_limb_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x1900UL,  0x194FUL ),  /* Limbu */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+  const AF_Script_UniRangeRec  af_mlym_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x0D00UL,  0x0D7FUL ),  /* Malayalam */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+  const AF_Script_UniRangeRec  af_orya_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x0B00UL,  0x0B7FUL ),  /* Oriya */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+  const AF_Script_UniRangeRec  af_sinh_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x0D80UL,  0x0DFFUL ),  /* Sinhala */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+  const AF_Script_UniRangeRec  af_sund_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x1B80UL,  0x1BBFUL ),  /* Sundanese */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+  const AF_Script_UniRangeRec  af_sylo_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0xA800UL,  0xA82FUL ),  /* Syloti Nagri */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+  const AF_Script_UniRangeRec  af_taml_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x0B80UL,  0x0BFFUL ),  /* Tamil */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+  const AF_Script_UniRangeRec  af_tibt_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x0F00UL,  0x0FFFUL ),  /* Tibetan */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+#endif /* !AF_CONFIG_OPTION_INDIC */
+
+#ifdef AF_CONFIG_OPTION_CJK
+
+  /* this corresponds to Unicode 6.0 */
+
+  const AF_Script_UniRangeRec  af_hani_uniranges[] =
+  {
+    AF_UNIRANGE_REC(  0x1100UL,  0x11FFUL ),  /* Hangul Jamo                             */
+    AF_UNIRANGE_REC(  0x2E80UL,  0x2EFFUL ),  /* CJK Radicals Supplement                 */
+    AF_UNIRANGE_REC(  0x2F00UL,  0x2FDFUL ),  /* Kangxi Radicals                         */
+    AF_UNIRANGE_REC(  0x2FF0UL,  0x2FFFUL ),  /* Ideographic Description Characters      */
+    AF_UNIRANGE_REC(  0x3000UL,  0x303FUL ),  /* CJK Symbols and Punctuation             */
+    AF_UNIRANGE_REC(  0x3040UL,  0x309FUL ),  /* Hiragana                                */
+    AF_UNIRANGE_REC(  0x30A0UL,  0x30FFUL ),  /* Katakana                                */
+    AF_UNIRANGE_REC(  0x3100UL,  0x312FUL ),  /* Bopomofo                                */
+    AF_UNIRANGE_REC(  0x3130UL,  0x318FUL ),  /* Hangul Compatibility Jamo               */
+    AF_UNIRANGE_REC(  0x3190UL,  0x319FUL ),  /* Kanbun                                  */
+    AF_UNIRANGE_REC(  0x31A0UL,  0x31BFUL ),  /* Bopomofo Extended                       */
+    AF_UNIRANGE_REC(  0x31C0UL,  0x31EFUL ),  /* CJK Strokes                             */
+    AF_UNIRANGE_REC(  0x31F0UL,  0x31FFUL ),  /* Katakana Phonetic Extensions            */
+    AF_UNIRANGE_REC(  0x3200UL,  0x32FFUL ),  /* Enclosed CJK Letters and Months         */
+    AF_UNIRANGE_REC(  0x3300UL,  0x33FFUL ),  /* CJK Compatibility                       */
+    AF_UNIRANGE_REC(  0x3400UL,  0x4DBFUL ),  /* CJK Unified Ideographs Extension A      */
+    AF_UNIRANGE_REC(  0x4DC0UL,  0x4DFFUL ),  /* Yijing Hexagram Symbols                 */
+    AF_UNIRANGE_REC(  0x4E00UL,  0x9FFFUL ),  /* CJK Unified Ideographs                  */
+    AF_UNIRANGE_REC(  0xA960UL,  0xA97FUL ),  /* Hangul Jamo Extended-A                  */
+    AF_UNIRANGE_REC(  0xAC00UL,  0xD7AFUL ),  /* Hangul Syllables                        */
+    AF_UNIRANGE_REC(  0xD7B0UL,  0xD7FFUL ),  /* Hangul Jamo Extended-B                  */
+    AF_UNIRANGE_REC(  0xF900UL,  0xFAFFUL ),  /* CJK Compatibility Ideographs            */
+    AF_UNIRANGE_REC(  0xFE10UL,  0xFE1FUL ),  /* Vertical forms                          */
+    AF_UNIRANGE_REC(  0xFE30UL,  0xFE4FUL ),  /* CJK Compatibility Forms                 */
+    AF_UNIRANGE_REC(  0xFF00UL,  0xFFEFUL ),  /* Halfwidth and Fullwidth Forms           */
+    AF_UNIRANGE_REC( 0x1B000UL, 0x1B0FFUL ),  /* Kana Supplement                         */
+    AF_UNIRANGE_REC( 0x1D300UL, 0x1D35FUL ),  /* Tai Xuan Hing Symbols                   */
+    AF_UNIRANGE_REC( 0x1F200UL, 0x1F2FFUL ),  /* Enclosed Ideographic Supplement         */
+    AF_UNIRANGE_REC( 0x20000UL, 0x2A6DFUL ),  /* CJK Unified Ideographs Extension B      */
+    AF_UNIRANGE_REC( 0x2A700UL, 0x2B73FUL ),  /* CJK Unified Ideographs Extension C      */
+    AF_UNIRANGE_REC( 0x2B740UL, 0x2B81FUL ),  /* CJK Unified Ideographs Extension D      */
+    AF_UNIRANGE_REC( 0x2F800UL, 0x2FA1FUL ),  /* CJK Compatibility Ideographs Supplement */
+    AF_UNIRANGE_REC(       0UL,       0UL )
+  };
+
+#endif /* !AF_CONFIG_OPTION_CJK */
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afranges.h b/src/3rdparty/freetype/src/autofit/afranges.h
new file mode 100644
index 0000000000..fe5b2aa7c1
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afranges.h
@@ -0,0 +1,41 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afranges.h                                                             */
+/*                                                                         */
+/*    Auto-fitter Unicode script ranges (specification).                   */
+/*                                                                         */
+/*  Copyright 2013, 2014 by                                                */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#ifndef __AFRANGES_H__
+#define __AFRANGES_H__
+
+
+#include "aftypes.h"
+
+
+FT_BEGIN_HEADER
+
+#undef  SCRIPT
+#define SCRIPT( s, S, d, h, sc1, sc2, sc3 )                             \
+          extern const AF_Script_UniRangeRec  af_ ## s ## _uniranges[];
+
+#include "afscript.h"
+
+ /* */
+
+FT_END_HEADER
+
+#endif /* __AFRANGES_H__ */
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afscript.h b/src/3rdparty/freetype/src/autofit/afscript.h
new file mode 100644
index 0000000000..efe8754df8
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afscript.h
@@ -0,0 +1,139 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afscript.h                                                             */
+/*                                                                         */
+/*    Auto-fitter scripts (specification only).                            */
+/*                                                                         */
+/*  Copyright 2013, 2014 by                                                */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+  /* The following part can be included multiple times. */
+  /* Define `SCRIPT' as needed.                         */
+
+
+  /* Add new scripts here.  The first and second arguments are the    */
+  /* script name in lowercase and uppercase, respectively, followed   */
+  /* by a description string.  Then comes the corresponding HarfBuzz  */
+  /* script name tag, followed by a string of standard characters (to */
+  /* derive the standard width and height of stems).                  */
+
+  SCRIPT( cyrl, CYRL,
+          "Cyrillic",
+          HB_SCRIPT_CYRILLIC,
+          0x43E, 0x41E, 0x0 ) /* оО */
+
+  SCRIPT( deva, DEVA,
+          "Devanagari",
+          HB_SCRIPT_DEVANAGARI,
+          0x920, 0x935, 0x91F ) /* ठ व ट */
+
+  SCRIPT( grek, GREK,
+          "Greek",
+          HB_SCRIPT_GREEK,
+          0x3BF, 0x39F, 0x0 ) /* οΟ */
+
+  SCRIPT( hebr, HEBR,
+          "Hebrew",
+          HB_SCRIPT_HEBREW,
+          0x5DD, 0x0, 0x0 ) /* ם */
+
+  SCRIPT( latn, LATN,
+          "Latin",
+          HB_SCRIPT_LATIN,
+          'o', 'O', '0' )
+
+  SCRIPT( none, NONE,
+          "no script",
+          HB_SCRIPT_INVALID,
+          0x0, 0x0, 0x0 )
+
+  /* there are no simple forms for letters; we thus use two digit shapes */
+  SCRIPT( telu, TELU,
+          "Telugu",
+          HB_SCRIPT_TELUGU,
+          0xC66, 0xC67, 0x0 ) /* ౦ ౧ */
+
+#ifdef AF_CONFIG_OPTION_INDIC
+
+  SCRIPT( beng, BENG,
+          "Bengali",
+          HB_SCRIPT_BENGALI,
+          'o', 0x0, 0x0 ) /* XXX */
+
+  SCRIPT( gujr, GUJR,
+          "Gujarati",
+          HB_SCRIPT_GUJARATI,
+          'o', 0x0, 0x0 ) /* XXX */
+
+  SCRIPT( guru, GURU,
+          "Gurmukhi",
+          HB_SCRIPT_GURMUKHI,
+          'o', 0x0, 0x0 ) /* XXX */
+
+  SCRIPT( knda, KNDA,
+          "Kannada",
+          HB_SCRIPT_KANNADA,
+          'o', 0x0, 0x0 ) /* XXX */
+
+  SCRIPT( limb, LIMB,
+          "Limbu",
+          HB_SCRIPT_LIMBU,
+          'o', 0x0, 0x0 ) /* XXX */
+
+  SCRIPT( mlym, MLYM,
+          "Malayalam",
+          HB_SCRIPT_MALAYALAM,
+          'o', 0x0, 0x0 ) /* XXX */
+
+  SCRIPT( orya, ORYA,
+          "Oriya",
+          HB_SCRIPT_ORIYA,
+          'o', 0x0, 0x0 ) /* XXX */
+
+  SCRIPT( sinh, SINH,
+          "Sinhala",
+          HB_SCRIPT_SINHALA,
+          'o', 0x0, 0x0 ) /* XXX */
+
+  SCRIPT( sund, SUND,
+          "Sundanese",
+          HB_SCRIPT_SUNDANESE,
+          'o', 0x0, 0x0 ) /* XXX */
+
+  SCRIPT( sylo, SYLO,
+          "Syloti Nagri",
+          HB_SCRIPT_SYLOTI_NAGRI,
+          'o', 0x0, 0x0 ) /* XXX */
+
+  SCRIPT( taml, TAML,
+          "Tamil",
+          HB_SCRIPT_TAMIL,
+          'o', 0x0, 0x0 ) /* XXX */
+
+  SCRIPT( tibt, TIBT,
+          "Tibetan",
+          HB_SCRIPT_TIBETAN,
+          'o', 0x0, 0x0 ) /* XXX */
+
+#endif /* AF_CONFIG_OPTION_INDIC */
+
+#ifdef AF_CONFIG_OPTION_CJK
+
+  SCRIPT( hani, HANI,
+          "CJKV ideographs",
+          HB_SCRIPT_HAN,
+          0x7530, 0x56D7, 0x0 ) /* 田囗 */
+
+#endif /* AF_CONFIG_OPTION_CJK */
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afstyles.h b/src/3rdparty/freetype/src/autofit/afstyles.h
new file mode 100644
index 0000000000..f14d354ccb
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afstyles.h
@@ -0,0 +1,164 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afstyles.h                                                             */
+/*                                                                         */
+/*    Auto-fitter styles (specification only).                             */
+/*                                                                         */
+/*  Copyright 2013, 2014 by                                                */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+  /* The following part can be included multiple times. */
+  /* Define `STYLE' as needed.                          */
+
+
+  /* Add new styles here.  The first and second arguments are the  */
+  /* style name in lowercase and uppercase, respectively, followed */
+  /* by a description string.  The next arguments are the          */
+  /* corresponding writing system, script, blue stringset, and     */
+  /* coverage.                                                     */
+  /*                                                               */
+  /* Note that styles using `AF_COVERAGE_DEFAULT' should always    */
+  /* come after styles with other coverages.                       */
+  /*                                                               */
+  /* Example:                                                      */
+  /*                                                               */
+  /*   STYLE( cyrl_dflt, CYRL_DFLT,                                */
+  /*          "Cyrillic default style",                            */
+  /*          AF_WRITING_SYSTEM_LATIN,                             */
+  /*          AF_SCRIPT_CYRL,                                      */
+  /*          AF_BLUE_STRINGSET_CYRL,                              */
+  /*          AF_COVERAGE_DEFAULT )                                */
+
+#undef  STYLE_LATIN
+#define STYLE_LATIN( s, S, f, F, ds, df, C ) \
+          STYLE( s ## _ ## f, S ## _ ## F,   \
+                 ds " " df " style",         \
+                 AF_WRITING_SYSTEM_LATIN,    \
+                 AF_SCRIPT_ ## S,            \
+                 AF_BLUE_STRINGSET_ ## S,    \
+                 AF_COVERAGE_ ## C )
+
+#undef  META_STYLE_LATIN
+#define META_STYLE_LATIN( s, S, ds )                     \
+          STYLE_LATIN( s, S, c2cp, C2CP, ds,             \
+                       "petite capticals from capitals", \
+                       PETITE_CAPITALS_FROM_CAPITALS )   \
+          STYLE_LATIN( s, S, c2sc, C2SC, ds,             \
+                       "small capticals from capitals",  \
+                       SMALL_CAPITALS_FROM_CAPITALS )    \
+          STYLE_LATIN( s, S, ordn, ORDN, ds,             \
+                       "ordinals",                       \
+                       ORDINALS )                        \
+          STYLE_LATIN( s, S, pcap, PCAP, ds,             \
+                       "petite capitals",                \
+                       PETITE_CAPITALS )                 \
+          STYLE_LATIN( s, S, sinf, SINF, ds,             \
+                       "scientific inferiors",           \
+                       SCIENTIFIC_INFERIORS )            \
+          STYLE_LATIN( s, S, smcp, SMCP, ds,             \
+                       "small capitals",                 \
+                       SMALL_CAPITALS )                  \
+          STYLE_LATIN( s, S, subs, SUBS, ds,             \
+                       "subscript",                      \
+                       SUBSCRIPT )                       \
+          STYLE_LATIN( s, S, sups, SUPS, ds,             \
+                       "superscript",                    \
+                       SUPERSCRIPT )                     \
+          STYLE_LATIN( s, S, titl, TITL, ds,             \
+                       "titling",                        \
+                       TITLING )                         \
+          STYLE_LATIN( s, S, dflt, DFLT, ds,             \
+                       "default",                        \
+                       DEFAULT )
+
+  META_STYLE_LATIN( cyrl, CYRL, "Cyrillic" )
+
+  META_STYLE_LATIN( grek, GREK, "Greek" )
+
+  STYLE( hebr_dflt, HEBR_DFLT,
+         "Hebrew default style",
+         AF_WRITING_SYSTEM_LATIN,
+         AF_SCRIPT_HEBR,
+         AF_BLUE_STRINGSET_HEBR,
+         AF_COVERAGE_DEFAULT )
+  META_STYLE_LATIN( latn, LATN, "Latin" )
+
+  STYLE( deva_dflt, DEVA_DFLT,
+         "Devanagari default style",
+         AF_WRITING_SYSTEM_LATIN,
+         AF_SCRIPT_DEVA,
+         AF_BLUE_STRINGSET_DEVA,
+         AF_COVERAGE_DEFAULT )
+
+#ifdef FT_OPTION_AUTOFIT2
+  STYLE( ltn2_dflt, LTN2_DFLT,
+         "Latin 2 default style",
+         AF_WRITING_SYSTEM_LATIN2,
+         AF_SCRIPT_LATN,
+         AF_BLUE_STRINGSET_LATN,
+         AF_COVERAGE_DEFAULT )
+#endif
+
+  STYLE( none_dflt, NONE_DFLT,
+         "no style",
+         AF_WRITING_SYSTEM_DUMMY,
+         AF_SCRIPT_NONE,
+         (AF_Blue_Stringset)0,
+         AF_COVERAGE_DEFAULT )
+
+  STYLE( telu_dflt, TELU_DFLT,
+         "Telugu default style",
+         AF_WRITING_SYSTEM_LATIN,
+         AF_SCRIPT_TELU,
+         AF_BLUE_STRINGSET_TELU,
+         AF_COVERAGE_DEFAULT )
+
+#ifdef AF_CONFIG_OPTION_INDIC
+
+  /* no blue stringset support for the Indic writing system yet */
+#undef  STYLE_DEFAULT_INDIC
+#define STYLE_DEFAULT_INDIC( s, S, d )    \
+          STYLE( s ## _dflt, S ## _DFLT,  \
+                 d " default style",      \
+                 AF_WRITING_SYSTEM_INDIC, \
+                 AF_SCRIPT_ ## S,         \
+                 (AF_Blue_Stringset)0,    \
+                 AF_COVERAGE_DEFAULT )
+
+  STYLE_DEFAULT_INDIC( beng, BENG, "Bengali" )
+  STYLE_DEFAULT_INDIC( gujr, GUJR, "Gujarati" )
+  STYLE_DEFAULT_INDIC( guru, GURU, "Gurmukhi" )
+  STYLE_DEFAULT_INDIC( knda, KNDA, "Kannada" )
+  STYLE_DEFAULT_INDIC( limb, LIMB, "Limbu" )
+  STYLE_DEFAULT_INDIC( mlym, MLYM, "Malayalam" )
+  STYLE_DEFAULT_INDIC( orya, ORYA, "Oriya" )
+  STYLE_DEFAULT_INDIC( sinh, SINH, "Sinhala" )
+  STYLE_DEFAULT_INDIC( sund, SUND, "Sundanese" )
+  STYLE_DEFAULT_INDIC( sylo, SYLO, "Syloti Nagri" )
+  STYLE_DEFAULT_INDIC( taml, TAML, "Tamil" )
+  STYLE_DEFAULT_INDIC( tibt, TIBT, "Tibetan" )
+
+#endif /* AF_CONFIG_OPTION_INDIC */
+
+#ifdef AF_CONFIG_OPTION_CJK
+
+  STYLE( hani_dflt, HANI_DFLT,
+         "CJKV ideographs default style",
+         AF_WRITING_SYSTEM_CJK,
+         AF_SCRIPT_HANI,
+         AF_BLUE_STRINGSET_HANI,
+         AF_COVERAGE_DEFAULT )
+
+#endif /* AF_CONFIG_OPTION_CJK */
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/aftypes.h b/src/3rdparty/freetype/src/autofit/aftypes.h
index 5574f0c302..61badd1b8d 100644
--- a/src/3rdparty/freetype/src/autofit/aftypes.h
+++ b/src/3rdparty/freetype/src/autofit/aftypes.h
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    Auto-fitter types (specification only).                              */
 /*                                                                         */
-/*  Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 by                  */
+/*  Copyright 2003-2009, 2011-2014 by                                      */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -20,15 +20,12 @@
    *
    *  The auto-fitter is a complete rewrite of the old auto-hinter.
    *  Its main feature is the ability to differentiate between different
-   *  scripts in order to apply language-specific rules.
+   *  writing systems and scripts in order to apply specific rules.
    *
    *  The code has also been compartmentized into several entities that
    *  should make algorithmic experimentation easier than with the old
    *  code.
    *
-   *  Finally, we get rid of the Catharon license, since this code is
-   *  released under the FreeType one.
-   *
    *************************************************************************/
 
 
@@ -42,6 +39,8 @@
 #include FT_INTERNAL_OBJECTS_H
 #include FT_INTERNAL_DEBUG_H
 
+#include "afblue.h"
+
 
 FT_BEGIN_HEADER
 
@@ -53,26 +52,16 @@ FT_BEGIN_HEADER
   /*************************************************************************/
   /*************************************************************************/
 
-#define xxAF_USE_WARPER  /* only define to use warp hinting */
-#define xxAF_DEBUG
-
-#ifdef AF_DEBUG
+#ifdef FT_DEBUG_AUTOFIT
 
 #include FT_CONFIG_STANDARD_LIBRARY_H
 
-#define AF_LOG( x )  do { if ( _af_debug ) printf x; } while ( 0 )
-
-extern int    _af_debug;
 extern int    _af_debug_disable_horz_hints;
 extern int    _af_debug_disable_vert_hints;
 extern int    _af_debug_disable_blue_hints;
 extern void*  _af_debug_hints;
 
-#else /* !AF_DEBUG */
-
-#define AF_LOG( x )  do { } while ( 0 )        /* nothing */
-
-#endif /* !AF_DEBUG */
+#endif /* FT_DEBUG_AUTOFIT */
 
 
   /*************************************************************************/
@@ -97,8 +86,9 @@ extern void*  _af_debug_hints;
                FT_Pos*  table );
 
   FT_LOCAL( void )
-  af_sort_widths( FT_UInt   count,
-                  AF_Width  widths );
+  af_sort_and_quantize_widths( FT_UInt*  count,
+                               AF_Width  widths,
+                               FT_Pos    threshold );
 
 
   /*************************************************************************/
@@ -159,36 +149,11 @@ extern void*  _af_debug_hints;
   FT_END_STMNT
 
 
-  /*************************************************************************/
-  /*************************************************************************/
-  /*****                                                               *****/
-  /*****                    O U T L I N E S                            *****/
-  /*****                                                               *****/
-  /*************************************************************************/
-  /*************************************************************************/
-
   /*  opaque handle to glyph-specific hints -- see `afhints.h' for more
    *  details
    */
   typedef struct AF_GlyphHintsRec_*  AF_GlyphHints;
 
-  /*  This structure is used to model an input glyph outline to
-   *  the auto-hinter.  The latter will set the `hints' field
-   *  depending on the glyph's script.
-   */
-  typedef struct  AF_OutlineRec_
-  {
-    FT_Face        face;
-    FT_Outline     outline;
-    FT_UInt        outline_resolution;
-
-    FT_Int         advance;
-    FT_UInt        metrics_resolution;
-
-    AF_GlyphHints  hints;
-
-  } AF_OutlineRec;
-
 
   /*************************************************************************/
   /*************************************************************************/
@@ -232,87 +197,124 @@ extern void*  _af_debug_hints;
             (a)->y_delta == (b)->y_delta )
 
 
+  typedef struct AF_StyleMetricsRec_*  AF_StyleMetrics;
+
+  /*  This function parses an FT_Face to compute global metrics for
+   *  a specific style.
+   */
+  typedef FT_Error
+  (*AF_WritingSystem_InitMetricsFunc)( AF_StyleMetrics  metrics,
+                                       FT_Face          face );
+
+  typedef void
+  (*AF_WritingSystem_ScaleMetricsFunc)( AF_StyleMetrics  metrics,
+                                        AF_Scaler        scaler );
+
+  typedef void
+  (*AF_WritingSystem_DoneMetricsFunc)( AF_StyleMetrics  metrics );
+
+
+  typedef FT_Error
+  (*AF_WritingSystem_InitHintsFunc)( AF_GlyphHints    hints,
+                                     AF_StyleMetrics  metrics );
+
+  typedef void
+  (*AF_WritingSystem_ApplyHintsFunc)( AF_GlyphHints    hints,
+                                      FT_Outline*      outline,
+                                      AF_StyleMetrics  metrics );
+
+
   /*************************************************************************/
   /*************************************************************************/
   /*****                                                               *****/
-  /*****                       S C R I P T S                           *****/
+  /*****                W R I T I N G   S Y S T E M S                  *****/
   /*****                                                               *****/
   /*************************************************************************/
   /*************************************************************************/
 
   /*
-   *  The list of know scripts.  Each different script corresponds to the
-   *  following information:
-   *
-   *   - A set of Unicode ranges to test whether the face supports the
-   *     script.
-   *
-   *   - A specific global analyzer that will compute global metrics
-   *     specific to the script.
+   *  For the auto-hinter, a writing system consists of multiple scripts that
+   *  can be handled similarly *in a typographical way*; the relationship is
+   *  not based on history.  For example, both the Greek and the unrelated
+   *  Armenian scripts share the same features like ascender, descender,
+   *  x-height, etc.  Essentially, a writing system is covered by a
+   *  submodule of the auto-fitter; it contains
    *
-   *   - A specific glyph analyzer that will compute segments and
-   *     edges for each glyph covered by the script.
+   *  - a specific global analyzer that computes global metrics specific to
+   *    the script (based on script-specific characters to identify ascender
+   *    height, x-height, etc.),
    *
-   *   - A specific grid-fitting algorithm that will distort the
-   *     scaled glyph outline according to the results of the glyph
-   *     analyzer.
+   *  - a specific glyph analyzer that computes segments and edges for each
+   *    glyph covered by the script,
    *
-   *  Note that a given analyzer and/or grid-fitting algorithm can be
-   *  used by more than one script.
+   *  - a specific grid-fitting algorithm that distorts the scaled glyph
+   *    outline according to the results of the glyph analyzer.
    */
 
-  typedef enum  AF_Script_
+#define __AFWRTSYS_H__  /* don't load header files */
+#undef  WRITING_SYSTEM
+#define WRITING_SYSTEM( ws, WS )    \
+          AF_WRITING_SYSTEM_ ## WS,
+
+  /* The list of known writing systems. */
+  typedef enum  AF_WritingSystem_
   {
-    AF_SCRIPT_NONE  = 0,
-    AF_SCRIPT_LATIN = 1,
-    AF_SCRIPT_CJK   = 2,
-    AF_SCRIPT_INDIC = 3, 
-#ifdef FT_OPTION_AUTOFIT2
-    AF_SCRIPT_LATIN2,
-#endif
 
-    /* add new scripts here.  Don't forget to update the list in */
-    /* `afglobal.c'.                                             */
+#include "afwrtsys.h"
 
-    AF_SCRIPT_MAX   /* do not remove */
+    AF_WRITING_SYSTEM_MAX   /* do not remove */
 
-  } AF_Script;
+  } AF_WritingSystem;
 
+#undef  __AFWRTSYS_H__
 
-  typedef struct AF_ScriptClassRec_ const*  AF_ScriptClass;
 
-  typedef struct  AF_ScriptMetricsRec_
+  typedef struct  AF_WritingSystemClassRec_
   {
-    AF_ScriptClass  clazz;
-    AF_ScalerRec    scaler;
-    FT_Bool         digits_have_same_width;
+    AF_WritingSystem  writing_system;
 
-  } AF_ScriptMetricsRec, *AF_ScriptMetrics;
+    FT_Offset                          style_metrics_size;
+    AF_WritingSystem_InitMetricsFunc   style_metrics_init;
+    AF_WritingSystem_ScaleMetricsFunc  style_metrics_scale;
+    AF_WritingSystem_DoneMetricsFunc   style_metrics_done;
 
+    AF_WritingSystem_InitHintsFunc     style_hints_init;
+    AF_WritingSystem_ApplyHintsFunc    style_hints_apply;
 
-  /*  This function parses an FT_Face to compute global metrics for
-   *  a specific script.
+  } AF_WritingSystemClassRec;
+
+  typedef const AF_WritingSystemClassRec*  AF_WritingSystemClass;
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                        S C R I P T S                          *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /*
+   *  Each script is associated with a set of Unicode ranges that gets used
+   *  to test whether the font face supports the script.
+   *
+   *  We use four-letter script tags from the OpenType specification,
+   *  extended by `NONE', which indicates `no script'.
    */
-  typedef FT_Error
-  (*AF_Script_InitMetricsFunc)( AF_ScriptMetrics  metrics,
-                                FT_Face           face );
 
-  typedef void
-  (*AF_Script_ScaleMetricsFunc)( AF_ScriptMetrics  metrics,
-                                 AF_Scaler         scaler );
+#undef  SCRIPT
+#define SCRIPT( s, S, d, h, sc1, sc2, sc3 ) \
+          AF_SCRIPT_ ## S,
 
-  typedef void
-  (*AF_Script_DoneMetricsFunc)( AF_ScriptMetrics  metrics );
+  /* The list of known scripts. */
+  typedef enum  AF_Script_
+  {
 
+#include "afscript.h"
 
-  typedef FT_Error
-  (*AF_Script_InitHintsFunc)( AF_GlyphHints     hints,
-                              AF_ScriptMetrics  metrics );
+    AF_SCRIPT_MAX   /* do not remove */
 
-  typedef void
-  (*AF_Script_ApplyHintsFunc)( AF_GlyphHints     hints,
-                               FT_Outline*       outline,
-                               AF_ScriptMetrics  metrics );
+  } AF_Script;
 
 
   typedef struct  AF_Script_UniRangeRec_
@@ -324,73 +326,303 @@ extern void*  _af_debug_hints;
 
 #define AF_UNIRANGE_REC( a, b ) { (FT_UInt32)(a), (FT_UInt32)(b) }
 
-  typedef const AF_Script_UniRangeRec  *AF_Script_UniRange;
+  typedef const AF_Script_UniRangeRec*  AF_Script_UniRange;
 
 
   typedef struct  AF_ScriptClassRec_
   {
-    AF_Script                   script;
-    AF_Script_UniRange          script_uni_ranges; /* last must be { 0, 0 } */
+    AF_Script  script;
 
-    FT_Offset                   script_metrics_size;
-    AF_Script_InitMetricsFunc   script_metrics_init;
-    AF_Script_ScaleMetricsFunc  script_metrics_scale;
-    AF_Script_DoneMetricsFunc   script_metrics_done;
+    AF_Script_UniRange  script_uni_ranges; /* last must be { 0, 0 }        */
 
-    AF_Script_InitHintsFunc     script_hints_init;
-    AF_Script_ApplyHintsFunc    script_hints_apply;
+    FT_UInt32  standard_char1;             /* for default width and height */
+    FT_UInt32  standard_char2;             /* ditto                        */
+    FT_UInt32  standard_char3;             /* ditto                        */
 
   } AF_ScriptClassRec;
 
-/* Declare and define vtables for classes */
+  typedef const AF_ScriptClassRec*  AF_ScriptClass;
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                      C O V E R A G E S                        *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /*
+   *  Usually, a font contains more glyphs than can be addressed by its
+   *  character map.
+   *
+   *  In the PostScript font world, encoding vectors specific to a given
+   *  task are used to select such glyphs, and these glyphs can be often
+   *  recognized by having a suffix in its glyph names.  For example, a
+   *  superscript glyph `A' might be called `A.sup'.  Unfortunately, this
+   *  naming scheme is not standardized and thus unusable for us.
+   *
+   *  In the OpenType world, a better solution was invented, namely
+   *  `features', which cleanly separate a character's input encoding from
+   *  the corresponding glyph's appearance, and which don't use glyph names
+   *  at all.  For our purposes, and slightly generalized, an OpenType
+   *  feature is a name of a mapping that maps character codes to
+   *  non-standard glyph indices (features get used for other things also).
+   *  For example, the `sups' feature provides superscript glyphs, thus
+   *  mapping character codes like `A' or `B' to superscript glyph
+   *  representation forms.  How this mapping happens is completely
+   *  uninteresting to us.
+   *
+   *  For the auto-hinter, a `coverage' represents all glyphs of an OpenType
+   *  feature collected in a set (as listed below) that can be hinted
+   *  together.  To continue the above example, superscript glyphs must not
+   *  be hinted together with normal glyphs because the blue zones
+   *  completely differ.
+   *
+   *  Note that FreeType itself doesn't compute coverages; it only provides
+   *  the glyphs addressable by the default Unicode character map.  Instead,
+   *  we use the HarfBuzz library (if available), which has many functions
+   *  exactly for this purpose.
+   *
+   *  AF_COVERAGE_DEFAULT is special: It should cover everything that isn't
+   *  listed separately (including the glyphs addressable by the character
+   *  map).  In case HarfBuzz isn't available, it exactly covers the glyphs
+   *  addressable by the character map.
+   *
+   */
+
+#undef  COVERAGE
+#define COVERAGE( name, NAME, description, \
+                  tag1, tag2, tag3, tag4 ) \
+          AF_COVERAGE_ ## NAME,
+
+
+  typedef enum  AF_Coverage_
+  {
+#include "afcover.h"
+
+    AF_COVERAGE_DEFAULT
+
+  } AF_Coverage;
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                         S T Y L E S                           *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /*
+   *  The topmost structure for modelling the auto-hinter glyph input data
+   *  is a `style class', grouping everything together.
+   */
+
+#undef  STYLE
+#define STYLE( s, S, d, ws, sc, ss, c ) \
+          AF_STYLE_ ## S,
+
+  /* The list of known styles. */
+  typedef enum  AF_Style_
+  {
+
+#include "afstyles.h"
+
+    AF_STYLE_MAX   /* do not remove */
+
+  } AF_Style;
+
+
+  typedef struct  AF_StyleClassRec_
+  {
+    AF_Style  style;
+
+    AF_WritingSystem   writing_system;
+    AF_Script          script;
+    AF_Blue_Stringset  blue_stringset;
+    AF_Coverage        coverage;
+
+  } AF_StyleClassRec;
+
+  typedef const AF_StyleClassRec*  AF_StyleClass;
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                   S T Y L E   M E T R I C S                   *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  typedef struct AF_FaceGlobalsRec_*  AF_FaceGlobals;
+
+  /* This is the main structure that combines everything.  Autofit modules */
+  /* specific to writing systems derive their structures from it, for      */
+  /* example `AF_LatinMetrics'.                                            */
+
+  typedef struct  AF_StyleMetricsRec_
+  {
+    AF_StyleClass   style_class;
+    AF_ScalerRec    scaler;
+    FT_Bool         digits_have_same_width;
+
+    AF_FaceGlobals  globals;    /* to access properties */
+
+  } AF_StyleMetricsRec;
+
+
+  /* Declare and define vtables for classes */
 #ifndef FT_CONFIG_OPTION_PIC
 
-#define AF_DECLARE_SCRIPT_CLASS(script_class)                                \
-  FT_CALLBACK_TABLE const AF_ScriptClassRec                                  \
+#define AF_DECLARE_WRITING_SYSTEM_CLASS( writing_system_class ) \
+  FT_CALLBACK_TABLE const AF_WritingSystemClassRec              \
+  writing_system_class;
+
+#define AF_DEFINE_WRITING_SYSTEM_CLASS(                  \
+          writing_system_class,                          \
+          system,                                        \
+          m_size,                                        \
+          m_init,                                        \
+          m_scale,                                       \
+          m_done,                                        \
+          h_init,                                        \
+          h_apply )                                      \
+  FT_CALLBACK_TABLE_DEF                                  \
+  const AF_WritingSystemClassRec  writing_system_class = \
+  {                                                      \
+    system,                                              \
+                                                         \
+    m_size,                                              \
+                                                         \
+    m_init,                                              \
+    m_scale,                                             \
+    m_done,                                              \
+                                                         \
+    h_init,                                              \
+    h_apply                                              \
+  };
+
+
+#define AF_DECLARE_SCRIPT_CLASS( script_class ) \
+  FT_CALLBACK_TABLE const AF_ScriptClassRec     \
   script_class;
 
-#define AF_DEFINE_SCRIPT_CLASS(script_class, script_, ranges, m_size,        \
-                               m_init, m_scale, m_done, h_init, h_apply)     \
-  FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec                              \
-  script_class =                                                             \
-  {                                                                          \
-    script_,                                                                 \
-    ranges,                                                                  \
-                                                                             \
-    m_size,                                                                  \
-                                                                             \
-    m_init,                                                                  \
-    m_scale,                                                                 \
-    m_done,                                                                  \
-                                                                             \
-    h_init,                                                                  \
-    h_apply                                                                  \
+#define AF_DEFINE_SCRIPT_CLASS(           \
+          script_class,                   \
+          script,                         \
+          ranges,                         \
+          std_char1,                      \
+          std_char2,                      \
+          std_char3 )                     \
+  FT_CALLBACK_TABLE_DEF                   \
+  const AF_ScriptClassRec  script_class = \
+  {                                       \
+    script,                               \
+    ranges,                               \
+    std_char1,                            \
+    std_char2,                            \
+    std_char3                             \
   };
 
-#else 
-
-#define AF_DECLARE_SCRIPT_CLASS(script_class)                                \
-  FT_LOCAL(void)                                                             \
-  FT_Init_Class_##script_class(AF_ScriptClassRec* ac);
-
-#define AF_DEFINE_SCRIPT_CLASS(script_class, script_, ranges, m_size,        \
-                               m_init, m_scale, m_done, h_init, h_apply)     \
-  FT_LOCAL_DEF(void)                                                         \
-  FT_Init_Class_##script_class(AF_ScriptClassRec* ac)                        \
-  {                                                                          \
-    ac->script                = script_;                                     \
-    ac->script_uni_ranges     = ranges;                                      \
-                                                                             \
-    ac->script_metrics_size   = m_size;                                      \
-                                                                             \
-    ac->script_metrics_init   = m_init;                                      \
-    ac->script_metrics_scale  = m_scale;                                     \
-    ac->script_metrics_done   = m_done;                                      \
-                                                                             \
-    ac->script_hints_init     = h_init;                                      \
-    ac->script_hints_apply    = h_apply;                                     \
+
+#define AF_DECLARE_STYLE_CLASS( style_class ) \
+  FT_CALLBACK_TABLE const AF_StyleClassRec    \
+  style_class;
+
+#define AF_DEFINE_STYLE_CLASS(          \
+          style_class,                  \
+          style,                        \
+          writing_system,               \
+          script,                       \
+          blue_stringset,               \
+          coverage )                    \
+  FT_CALLBACK_TABLE_DEF                 \
+  const AF_StyleClassRec  style_class = \
+  {                                     \
+    style,                              \
+    writing_system,                     \
+    script,                             \
+    blue_stringset,                     \
+    coverage                            \
+  };
+
+#else /* FT_CONFIG_OPTION_PIC */
+
+#define AF_DECLARE_WRITING_SYSTEM_CLASS( writing_system_class )            \
+  FT_LOCAL( void )                                                         \
+  FT_Init_Class_ ## writing_system_class( AF_WritingSystemClassRec*  ac );
+
+#define AF_DEFINE_WRITING_SYSTEM_CLASS(                                   \
+          writing_system_class,                                           \
+          system,                                                         \
+          m_size,                                                         \
+          m_init,                                                         \
+          m_scale,                                                        \
+          m_done,                                                         \
+          h_init,                                                         \
+          h_apply )                                                       \
+  FT_LOCAL_DEF( void )                                                    \
+  FT_Init_Class_ ## writing_system_class( AF_WritingSystemClassRec*  ac ) \
+  {                                                                       \
+    ac->writing_system      = system;                                     \
+                                                                          \
+    ac->style_metrics_size  = m_size;                                     \
+                                                                          \
+    ac->style_metrics_init  = m_init;                                     \
+    ac->style_metrics_scale = m_scale;                                    \
+    ac->style_metrics_done  = m_done;                                     \
+                                                                          \
+    ac->style_hints_init    = h_init;                                     \
+    ac->style_hints_apply   = h_apply;                                    \
+  }
+
+
+#define AF_DECLARE_SCRIPT_CLASS( script_class )             \
+  FT_LOCAL( void )                                          \
+  FT_Init_Class_ ## script_class( AF_ScriptClassRec*  ac );
+
+#define AF_DEFINE_SCRIPT_CLASS(                            \
+          script_class,                                    \
+          script_,                                         \
+          ranges,                                          \
+          std_char1,                                       \
+          std_char2,                                       \
+          std_char3 )                                      \
+  FT_LOCAL_DEF( void )                                     \
+  FT_Init_Class_ ## script_class( AF_ScriptClassRec*  ac ) \
+  {                                                        \
+    ac->script            = script_;                       \
+    ac->script_uni_ranges = ranges;                        \
+    ac->standard_char1    = std_char1;                     \
+    ac->standard_char2    = std_char2;                     \
+    ac->standard_char3    = std_char3;                     \
   }
-#endif
+
+
+#define AF_DECLARE_STYLE_CLASS( style_class )             \
+  FT_LOCAL( void )                                        \
+  FT_Init_Class_ ## style_class( AF_StyleClassRec*  ac );
+
+#define AF_DEFINE_STYLE_CLASS(                           \
+          style_class,                                   \
+          style_,                                        \
+          writing_system_,                               \
+          script_,                                       \
+          blue_stringset_,                               \
+          coverage_ )                                    \
+  FT_LOCAL_DEF( void )                                   \
+  FT_Init_Class_ ## style_class( AF_StyleClassRec*  ac ) \
+  {                                                      \
+    ac->style          = style_;                         \
+    ac->writing_system = writing_system_;                \
+    ac->script         = script_;                        \
+    ac->blue_stringset = blue_stringset_;                \
+    ac->coverage       = coverage_;                      \
+  }
+
+#endif /* FT_CONFIG_OPTION_PIC */
 
 
 /* */
diff --git a/src/3rdparty/freetype/src/autofit/afwarp.c b/src/3rdparty/freetype/src/autofit/afwarp.c
index f5bb9b18ad..34a97ffc57 100644
--- a/src/3rdparty/freetype/src/autofit/afwarp.c
+++ b/src/3rdparty/freetype/src/autofit/afwarp.c
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    Auto-fitter warping algorithm (body).                                */
 /*                                                                         */
-/*  Copyright 2006, 2007 by                                                */
+/*  Copyright 2006, 2007, 2011 by                                          */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -16,10 +16,30 @@
 /***************************************************************************/
 
 
+  /*
+   *  The idea of the warping code is to slightly scale and shift a glyph
+   *  within a single dimension so that as much of its segments are aligned
+   *  (more or less) on the grid.  To find out the optimal scaling and
+   *  shifting value, various parameter combinations are tried and scored.
+   */
+
 #include "afwarp.h"
 
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
+  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
+  /* messages during execution.                                            */
+  /*                                                                       */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  trace_afwarp
+
 
+  /* The weights cover the range 0/64 - 63/64 of a pixel.  Obviously, */
+  /* values around a half pixel (which means exactly between two grid */
+  /* lines) gets the worst weight.                                    */
 #if 1
   static const AF_WarpScore
   af_warper_weights[64] =
@@ -43,6 +63,11 @@
 #endif
 
 
+  /* Score segments for a given `scale' and `delta' in the range */
+  /* `xx1' to `xx2', and store the best result in `warper'.  If  */
+  /* the new best score is equal to the old one, prefer the      */
+  /* value with a smaller distortion (around `base_distort').    */
+
   static void
   af_warper_compute_line_best( AF_Warper     warper,
                                FT_Fixed      scale,
@@ -82,12 +107,12 @@
 
       if ( idx_min < 0 || idx_min > idx_max || idx_max > 64 )
       {
-        AF_LOG(( "invalid indices:\n"
-                 "  min=%d max=%d, xx1=%ld xx2=%ld,\n"
-                 "  x1min=%ld x1max=%ld, x2min=%ld x2max=%ld\n",
-                 idx_min, idx_max, xx1, xx2,
-                 warper->x1min, warper->x1max,
-                 warper->x2min, warper->x2max ));
+        FT_TRACE5(( "invalid indices:\n"
+                    "  min=%d max=%d, xx1=%ld xx2=%ld,\n"
+                    "  x1min=%ld x1max=%ld, x2min=%ld x2max=%ld\n",
+                    idx_min, idx_max, xx1, xx2,
+                    warper->x1min, warper->x1max,
+                    warper->x2min, warper->x2max ));
         return;
       }
     }
@@ -100,6 +125,7 @@
       FT_Int  idx;
 
 
+      /* score the length of the segments for the given range */
       for ( idx = idx_min; idx <= idx_max; idx++, y++ )
         scores[idx] += af_warper_weights[y & 63] * len;
     }
@@ -115,9 +141,9 @@
         AF_WarpScore  distort = base_distort + ( idx - idx0 );
 
 
-        if ( score > warper->best_score           ||
+        if ( score > warper->best_score         ||
              ( score == warper->best_score    &&
-               distort < warper->best_distort )   )
+               distort < warper->best_distort ) )
         {
           warper->best_score   = score;
           warper->best_distort = distort;
@@ -129,6 +155,9 @@
   }
 
 
+  /* Compute optimal scaling and delta values for a given glyph and */
+  /* dimension.                                                     */
+
   FT_LOCAL_DEF( void )
   af_warper_compute( AF_Warper      warper,
                      AF_GlyphHints  hints,
@@ -215,6 +244,7 @@
     warper->t1 = AF_WARPER_FLOOR( warper->x1 );
     warper->t2 = AF_WARPER_CEIL( warper->x2 );
 
+    /* examine a half pixel wide range around the maximum coordinates */
     warper->x1min = warper->x1 & ~31;
     warper->x1max = warper->x1min + 32;
     warper->x2min = warper->x2 & ~31;
@@ -234,10 +264,12 @@
       warper->x2min = warper->x2;
     }
 
+    /* examine (at most) a pixel wide range around the natural width */
     warper->wmin = warper->x2min - warper->x1max;
     warper->wmax = warper->x2max - warper->x1min;
 
 #if 1
+    /* some heuristics to reduce the number of widths to be examined */
     {
       int  margin = 16;
 
@@ -273,6 +305,8 @@
       FT_Pos    xx1, xx2;
 
 
+      /* compute min and max positions for given width,       */
+      /* assuring that they stay within the coordinate ranges */
       xx1 = warper->x1;
       xx2 = warper->x2;
       if ( w >= warper->w0 )
@@ -304,6 +338,7 @@
       else
         base_distort += xx2 - warper->x2;
 
+      /* give base distortion a greater weight while scoring */
       base_distort *= 10;
 
       new_scale = org_scale + FT_DivFix( w - warper->w0, X2 - X1 );
@@ -317,7 +352,7 @@
     {
       FT_Fixed  best_scale = warper->best_scale;
       FT_Pos    best_delta = warper->best_delta;
-     
+
 
       hints->xmin_delta = FT_MulFix( X1, best_scale - org_scale )
                           + best_delta;
@@ -329,10 +364,11 @@
     }
   }
 
-#else /* !AF_USE_WARPER */
+#else /* !AF_CONFIG_OPTION_USE_WARPER */
 
-char  af_warper_dummy = 0;  /* make compiler happy */
+  /* ANSI C doesn't like empty source files */
+  typedef int  _af_warp_dummy;
 
-#endif /* !AF_USE_WARPER */
+#endif /* !AF_CONFIG_OPTION_USE_WARPER */
 
 /* END */
diff --git a/src/3rdparty/freetype/src/autofit/afwrtsys.h b/src/3rdparty/freetype/src/autofit/afwrtsys.h
new file mode 100644
index 0000000000..8aa2ed9e6b
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afwrtsys.h
@@ -0,0 +1,52 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afwrtsys.h                                                             */
+/*                                                                         */
+/*    Auto-fitter writing systems (specification only).                    */
+/*                                                                         */
+/*  Copyright 2013 by                                                      */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#ifndef __AFWRTSYS_H__
+#define __AFWRTSYS_H__
+
+  /* Since preprocessor directives can't create other preprocessor */
+  /* directives, we have to include the header files manually.     */
+
+#include "afdummy.h"
+#include "aflatin.h"
+#include "afcjk.h"
+#include "afindic.h"
+#ifdef FT_OPTION_AUTOFIT2
+#include "aflatin2.h"
+#endif
+
+#endif /* __AFWRTSYS_H__ */
+
+
+  /* The following part can be included multiple times. */
+  /* Define `WRITING_SYSTEM' as needed.                 */
+
+
+  /* Add new writing systems here.  The arguments are the writing system */
+  /* name in lowercase and uppercase, respectively.                      */
+
+  WRITING_SYSTEM( dummy,  DUMMY  )
+  WRITING_SYSTEM( latin,  LATIN  )
+  WRITING_SYSTEM( cjk,    CJK    )
+  WRITING_SYSTEM( indic,  INDIC  )
+#ifdef FT_OPTION_AUTOFIT2
+  WRITING_SYSTEM( latin2, LATIN2 )
+#endif
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/autofit.c b/src/3rdparty/freetype/src/autofit/autofit.c
index 83b613e79b..e2b9934e4b 100644
--- a/src/3rdparty/freetype/src/autofit/autofit.c
+++ b/src/3rdparty/freetype/src/autofit/autofit.c
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    Auto-fitter module (body).                                           */
 /*                                                                         */
-/*  Copyright 2003, 2004, 2005, 2006, 2007 by                              */
+/*  Copyright 2003-2007, 2011, 2013 by                                     */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -20,9 +20,12 @@
 #include <ft2build.h>
 #include "afpic.c"
 #include "afangles.c"
+#include "afblue.c"
 #include "afglobal.c"
 #include "afhints.c"
 
+#include "afranges.c"
+
 #include "afdummy.c"
 #include "aflatin.c"
 #ifdef FT_OPTION_AUTOFIT2
@@ -31,10 +34,12 @@
 #include "afcjk.c"
 #include "afindic.c"
 
+#include "hbshim.c"
+
 #include "afloader.c"
 #include "afmodule.c"
 
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
 #include "afwarp.c"
 #endif
 
diff --git a/src/3rdparty/freetype/src/autofit/hbshim.c b/src/3rdparty/freetype/src/autofit/hbshim.c
new file mode 100644
index 0000000000..a705cef000
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/hbshim.c
@@ -0,0 +1,545 @@
+/***************************************************************************/
+/*                                                                         */
+/*  hbshim.c                                                               */
+/*                                                                         */
+/*    HarfBuzz interface for accessing OpenType features (body).           */
+/*                                                                         */
+/*  Copyright 2013, 2014 by                                                */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include "afglobal.h"
+#include "aftypes.h"
+#include "hbshim.h"
+
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
+  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
+  /* messages during execution.                                            */
+  /*                                                                       */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  trace_afharfbuzz
+
+
+  /*
+   * We use `sets' (in the HarfBuzz sense, which comes quite near to the
+   * usual mathematical meaning) to manage both lookups and glyph indices.
+   *
+   * 1. For each coverage, collect lookup IDs in a set.  Note that an
+   *    auto-hinter `coverage' is represented by one `feature', and a
+   *    feature consists of an arbitrary number of (font specific) `lookup's
+   *    that actually do the mapping job.  Please check the OpenType
+   *    specification for more details on features and lookups.
+   *
+   * 2. Create glyph ID sets from the corresponding lookup sets.
+   *
+   * 3. The glyph set corresponding to AF_COVERAGE_DEFAULT is computed
+   *    with all lookups specific to the OpenType script activated.  It
+   *    relies on the order of AF_DEFINE_STYLE_CLASS entries so that
+   *    special coverages (like `oldstyle figures') don't get overwritten.
+   *
+   */
+
+
+  /* load coverage tags */
+#undef  COVERAGE
+#define COVERAGE( name, NAME, description,             \
+                  tag1, tag2, tag3, tag4 )             \
+          static const hb_tag_t  name ## _coverage[] = \
+          {                                            \
+            HB_TAG( tag1, tag2, tag3, tag4 ),          \
+            HB_TAG_NONE                                \
+          };
+
+
+#include "afcover.h"
+
+
+  /* define mapping between coverage tags and AF_Coverage */
+#undef  COVERAGE
+#define COVERAGE( name, NAME, description, \
+                  tag1, tag2, tag3, tag4 ) \
+          name ## _coverage,
+
+
+  static const hb_tag_t*  coverages[] =
+  {
+#include "afcover.h"
+
+    NULL /* AF_COVERAGE_DEFAULT */
+  };
+
+
+  /* load HarfBuzz script tags */
+#undef  SCRIPT
+#define SCRIPT( s, S, d, h, sc1, sc2, sc3 )  h,
+
+
+  static const hb_script_t  scripts[] =
+  {
+#include "afscript.h"
+  };
+
+
+  FT_Error
+  af_get_coverage( AF_FaceGlobals  globals,
+                   AF_StyleClass   style_class,
+                   FT_Byte*        gstyles )
+  {
+    hb_face_t*  face;
+
+    hb_set_t*  gsub_lookups;  /* GSUB lookups for a given script */
+    hb_set_t*  gsub_glyphs;   /* glyphs covered by GSUB lookups  */
+    hb_set_t*  gpos_lookups;  /* GPOS lookups for a given script */
+    hb_set_t*  gpos_glyphs;   /* glyphs covered by GPOS lookups  */
+
+    hb_script_t      script;
+    const hb_tag_t*  coverage_tags;
+    hb_tag_t         script_tags[] = { HB_TAG_NONE,
+                                       HB_TAG_NONE,
+                                       HB_TAG_NONE,
+                                       HB_TAG_NONE };
+
+    hb_codepoint_t  idx;
+#ifdef FT_DEBUG_LEVEL_TRACE
+    int             count;
+#endif
+
+
+    if ( !globals || !style_class || !gstyles )
+      return FT_THROW( Invalid_Argument );
+
+    face = hb_font_get_face( globals->hb_font );
+
+    gsub_lookups = hb_set_create();
+    gsub_glyphs  = hb_set_create();
+    gpos_lookups = hb_set_create();
+    gpos_glyphs  = hb_set_create();
+
+    coverage_tags = coverages[style_class->coverage];
+    script        = scripts[style_class->script];
+
+    /* Convert a HarfBuzz script tag into the corresponding OpenType */
+    /* tag or tags -- some Indic scripts like Devanagari have an old */
+    /* and a new set of features.                                    */
+    hb_ot_tags_from_script( script,
+                            &script_tags[0],
+                            &script_tags[1] );
+
+    /* `hb_ot_tags_from_script' usually returns HB_OT_TAG_DEFAULT_SCRIPT */
+    /* as the second tag.  We change that to HB_TAG_NONE except for the  */
+    /* default script.                                                   */
+    if ( style_class->script == globals->module->default_script &&
+         style_class->coverage == AF_COVERAGE_DEFAULT           )
+    {
+      if ( script_tags[0] == HB_TAG_NONE )
+        script_tags[0] = HB_OT_TAG_DEFAULT_SCRIPT;
+      else
+      {
+        if ( script_tags[1] == HB_TAG_NONE )
+          script_tags[1] = HB_OT_TAG_DEFAULT_SCRIPT;
+        else if ( script_tags[1] != HB_OT_TAG_DEFAULT_SCRIPT )
+          script_tags[2] = HB_OT_TAG_DEFAULT_SCRIPT;
+      }
+    }
+    else
+    {
+      if ( script_tags[1] == HB_OT_TAG_DEFAULT_SCRIPT )
+        script_tags[1] = HB_TAG_NONE;
+    }
+
+    hb_ot_layout_collect_lookups( face,
+                                  HB_OT_TAG_GSUB,
+                                  script_tags,
+                                  NULL,
+                                  coverage_tags,
+                                  gsub_lookups );
+
+    if ( hb_set_is_empty( gsub_lookups ) )
+      goto Exit; /* nothing to do */
+
+    hb_ot_layout_collect_lookups( face,
+                                  HB_OT_TAG_GPOS,
+                                  script_tags,
+                                  NULL,
+                                  coverage_tags,
+                                  gpos_lookups );
+
+    FT_TRACE4(( "GSUB lookups (style `%s'):\n"
+                " ",
+                af_style_names[style_class->style] ));
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+    count = 0;
+#endif
+
+    for ( idx = -1; hb_set_next( gsub_lookups, &idx ); )
+    {
+#ifdef FT_DEBUG_LEVEL_TRACE
+      FT_TRACE4(( " %d", idx ));
+      count++;
+#endif
+
+      /* get output coverage of GSUB feature */
+      hb_ot_layout_lookup_collect_glyphs( face,
+                                          HB_OT_TAG_GSUB,
+                                          idx,
+                                          NULL,
+                                          NULL,
+                                          NULL,
+                                          gsub_glyphs );
+    }
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+    if ( !count )
+      FT_TRACE4(( " (none)" ));
+    FT_TRACE4(( "\n\n" ));
+#endif
+
+    FT_TRACE4(( "GPOS lookups (style `%s'):\n"
+                " ",
+                af_style_names[style_class->style] ));
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+    count = 0;
+#endif
+
+    for ( idx = -1; hb_set_next( gpos_lookups, &idx ); )
+    {
+#ifdef FT_DEBUG_LEVEL_TRACE
+      FT_TRACE4(( " %d", idx ));
+      count++;
+#endif
+
+      /* get input coverage of GPOS feature */
+      hb_ot_layout_lookup_collect_glyphs( face,
+                                          HB_OT_TAG_GPOS,
+                                          idx,
+                                          NULL,
+                                          gpos_glyphs,
+                                          NULL,
+                                          NULL );
+    }
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+    if ( !count )
+      FT_TRACE4(( " (none)" ));
+    FT_TRACE4(( "\n\n" ));
+#endif
+
+    /*
+     * We now check whether we can construct blue zones, using glyphs
+     * covered by the feature only.  In case there is not a single zone
+     * (this is, not a single character is covered), we skip this coverage.
+     *
+     */
+    if ( style_class->coverage != AF_COVERAGE_DEFAULT )
+    {
+      AF_Blue_Stringset         bss = style_class->blue_stringset;
+      const AF_Blue_StringRec*  bs  = &af_blue_stringsets[bss];
+
+      FT_Bool  found = 0;
+
+
+      for ( ; bs->string != AF_BLUE_STRING_MAX; bs++ )
+      {
+        const char*  p = &af_blue_strings[bs->string];
+
+
+        while ( *p )
+        {
+          hb_codepoint_t  ch;
+
+
+          GET_UTF8_CHAR( ch, p );
+
+          for ( idx = -1; hb_set_next( gsub_lookups, &idx ); )
+          {
+            hb_codepoint_t  gidx = FT_Get_Char_Index( globals->face, ch );
+
+
+            if ( hb_ot_layout_lookup_would_substitute( face, idx,
+                                                       &gidx, 1, 1 ) )
+            {
+              found = 1;
+              break;
+            }
+          }
+        }
+      }
+
+      if ( !found )
+      {
+        FT_TRACE4(( "  no blue characters found; style skipped\n" ));
+        goto Exit;
+      }
+    }
+
+    /*
+     * Various OpenType features might use the same glyphs at different
+     * vertical positions; for example, superscript and subscript glyphs
+     * could be the same.  However, the auto-hinter is completely
+     * agnostic of OpenType features after the feature analysis has been
+     * completed: The engine then simply receives a glyph index and returns a
+     * hinted and usually rendered glyph.
+     *
+     * Consider the superscript feature of font `pala.ttf': Some of the
+     * glyphs are `real', this is, they have a zero vertical offset, but
+     * most of them are small caps glyphs shifted up to the superscript
+     * position (this is, the `sups' feature is present in both the GSUB and
+     * GPOS tables).  The code for blue zones computation actually uses a
+     * feature's y offset so that the `real' glyphs get correct hints.  But
+     * later on it is impossible to decide whether a glyph index belongs to,
+     * say, the small caps or superscript feature.
+     *
+     * For this reason, we don't assign a style to a glyph if the current
+     * feature covers the glyph in both the GSUB and the GPOS tables.  This
+     * is quite a broad condition, assuming that
+     *
+     *   (a) glyphs that get used in multiple features are present in a
+     *       feature without vertical shift,
+     *
+     * and
+     *
+     *   (b) a feature's GPOS data really moves the glyph vertically.
+     *
+     * Not fulfilling condition (a) makes a font larger; it would also
+     * reduce the number of glyphs that could be addressed directly without
+     * using OpenType features, so this assumption is rather strong.
+     *
+     * Condition (b) is much weaker, and there might be glyphs which get
+     * missed.  However, the OpenType features we are going to handle are
+     * primarily located in GSUB, and HarfBuzz doesn't provide an API to
+     * directly get the necessary information from the GPOS table.  A
+     * possible solution might be to directly parse the GPOS table to find
+     * out whether a glyph gets shifted vertically, but this is something I
+     * would like to avoid if not really necessary.
+     *
+     * Note that we don't follow this logic for the default coverage.
+     * Complex scripts like Devanagari have mandatory GPOS features to
+     * position many glyph elements, using mark-to-base or mark-to-ligature
+     * tables; the number of glyphs missed due to condition (b) would be far
+     * too large.
+     *
+     */
+    if ( style_class->coverage != AF_COVERAGE_DEFAULT )
+      hb_set_subtract( gsub_glyphs, gpos_glyphs );
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+    FT_TRACE4(( "  glyphs without GPOS data (`*' means already assigned)" ));
+    count = 0;
+#endif
+
+    for ( idx = -1; hb_set_next( gsub_glyphs, &idx ); )
+    {
+#ifdef FT_DEBUG_LEVEL_TRACE
+      if ( !( count % 10 ) )
+        FT_TRACE4(( "\n"
+                    "   " ));
+
+      FT_TRACE4(( " %d", idx ));
+      count++;
+#endif
+
+      /* glyph indices returned by `hb_ot_layout_lookup_collect_glyphs' */
+      /* can be arbitrary: some fonts use fake indices for processing   */
+      /* internal to GSUB or GPOS, which is fully valid                 */
+      if ( idx >= (hb_codepoint_t)globals->glyph_count )
+        continue;
+
+      if ( gstyles[idx] == AF_STYLE_UNASSIGNED )
+        gstyles[idx] = (FT_Byte)style_class->style;
+#ifdef FT_DEBUG_LEVEL_TRACE
+      else
+        FT_TRACE4(( "*" ));
+#endif
+    }
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+    if ( !count )
+      FT_TRACE4(( "\n"
+                  "    (none)" ));
+    FT_TRACE4(( "\n\n" ));
+#endif
+
+  Exit:
+    hb_set_destroy( gsub_lookups );
+    hb_set_destroy( gsub_glyphs  );
+    hb_set_destroy( gpos_lookups );
+    hb_set_destroy( gpos_glyphs  );
+
+    return FT_Err_Ok;
+  }
+
+
+  /* construct HarfBuzz features */
+#undef  COVERAGE
+#define COVERAGE( name, NAME, description,                \
+                  tag1, tag2, tag3, tag4 )                \
+          static const hb_feature_t  name ## _feature[] = \
+          {                                               \
+            {                                             \
+              HB_TAG( tag1, tag2, tag3, tag4 ),           \
+              1, 0, (unsigned int)-1                      \
+            }                                             \
+          };
+
+
+#include "afcover.h"
+
+
+  /* define mapping between HarfBuzz features and AF_Coverage */
+#undef  COVERAGE
+#define COVERAGE( name, NAME, description, \
+                  tag1, tag2, tag3, tag4 ) \
+          name ## _feature,
+
+
+  static const hb_feature_t*  features[] =
+  {
+#include "afcover.h"
+
+    NULL /* AF_COVERAGE_DEFAULT */
+  };
+
+
+  FT_Error
+  af_get_char_index( AF_StyleMetrics  metrics,
+                     FT_ULong         charcode,
+                     FT_ULong        *codepoint,
+                     FT_Long         *y_offset )
+  {
+    AF_StyleClass  style_class;
+
+    const hb_feature_t*  feature;
+
+    FT_ULong  in_idx, out_idx;
+
+
+    if ( !metrics )
+      return FT_THROW( Invalid_Argument );
+
+    in_idx = FT_Get_Char_Index( metrics->globals->face, charcode );
+
+    style_class = metrics->style_class;
+
+    feature = features[style_class->coverage];
+
+    if ( feature )
+    {
+      FT_UInt  upem = metrics->globals->face->units_per_EM;
+
+      hb_font_t*    font = metrics->globals->hb_font;
+      hb_buffer_t*  buf  = hb_buffer_create();
+
+      uint32_t  c = (uint32_t)charcode;
+
+      hb_glyph_info_t*      ginfo;
+      hb_glyph_position_t*  gpos;
+      unsigned int          gcount;
+
+
+      /* we shape at a size of units per EM; this means font units */
+      hb_font_set_scale( font, upem, upem );
+
+      /* XXX: is this sufficient for a single character of any script? */
+      hb_buffer_set_direction( buf, HB_DIRECTION_LTR );
+      hb_buffer_set_script( buf, scripts[style_class->script] );
+
+      /* we add one character to `buf' ... */
+      hb_buffer_add_utf32( buf, &c, 1, 0, 1 );
+
+      /* ... and apply one feature */
+      hb_shape( font, buf, feature, 1 );
+
+      ginfo = hb_buffer_get_glyph_infos( buf, &gcount );
+      gpos  = hb_buffer_get_glyph_positions( buf, &gcount );
+
+      out_idx = ginfo[0].codepoint;
+
+      /* getting the same index indicates no substitution,         */
+      /* which means that the glyph isn't available in the feature */
+      if ( in_idx == out_idx )
+      {
+        *codepoint = 0;
+        *y_offset  = 0;
+      }
+      else
+      {
+        *codepoint = out_idx;
+        *y_offset  = gpos[0].y_offset;
+      }
+
+      hb_buffer_destroy( buf );
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+      if ( gcount > 1 )
+        FT_TRACE1(( "af_get_char_index:"
+                    " input character mapped to multiple glyphs\n" ));
+#endif
+    }
+    else
+    {
+      *codepoint = in_idx;
+      *y_offset  = 0;
+    }
+
+    return FT_Err_Ok;
+  }
+
+
+#else /* !FT_CONFIG_OPTION_USE_HARFBUZZ */
+
+
+  FT_Error
+  af_get_coverage( AF_FaceGlobals  globals,
+                   AF_StyleClass   style_class,
+                   FT_Byte*        gstyles )
+  {
+    FT_UNUSED( globals );
+    FT_UNUSED( style_class );
+    FT_UNUSED( gstyles );
+
+    return FT_Err_Ok;
+  }
+
+
+  FT_Error
+  af_get_char_index( AF_StyleMetrics  metrics,
+                     FT_ULong         charcode,
+                     FT_ULong        *codepoint,
+                     FT_Long         *y_offset )
+  {
+    FT_Face  face;
+
+
+    if ( !metrics )
+      return FT_THROW( Invalid_Argument );
+
+    face = metrics->globals->face;
+
+    *codepoint = FT_Get_Char_Index( face, charcode );
+    *y_offset  = 0;
+
+    return FT_Err_Ok;
+  }
+
+
+#endif /* !FT_CONFIG_OPTION_USE_HARFBUZZ */
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/hbshim.h b/src/3rdparty/freetype/src/autofit/hbshim.h
new file mode 100644
index 0000000000..02f1513f67
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/hbshim.h
@@ -0,0 +1,56 @@
+/***************************************************************************/
+/*                                                                         */
+/*  hbshim.h                                                               */
+/*                                                                         */
+/*    HarfBuzz interface for accessing OpenType features (specification).  */
+/*                                                                         */
+/*  Copyright 2013 by                                                      */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#ifndef __HBSHIM_H__
+#define __HBSHIM_H__
+
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
+
+#include <hb.h>
+#include <hb-ot.h>
+#include <hb-ft.h>
+
+#endif
+
+
+FT_BEGIN_HEADER
+
+  FT_Error
+  af_get_coverage( AF_FaceGlobals  globals,
+                   AF_StyleClass   style_class,
+                   FT_Byte*        gstyles );
+
+  FT_Error
+  af_get_char_index( AF_StyleMetrics  metrics,
+                     FT_ULong         charcode,
+                     FT_ULong        *codepoint,
+                     FT_Long         *y_offset );
+
+ /* */
+
+FT_END_HEADER
+
+#endif /* __HBSHIM_H__ */
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/rules.mk b/src/3rdparty/freetype/src/autofit/rules.mk
index 017489d9e0..658f04ea59 100644
--- a/src/3rdparty/freetype/src/autofit/rules.mk
+++ b/src/3rdparty/freetype/src/autofit/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 2003, 2004, 2005, 2006, 2007 by
+# Copyright 2003-2007, 2011, 2013 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@@ -26,6 +26,7 @@ AUTOF_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(AUTOF_DIR))
 # AUTOF driver sources (i.e., C files)
 #
 AUTOF_DRV_SRC := $(AUTOF_DIR)/afangles.c \
+                 $(AUTOF_DIR)/afblue.c   \
                  $(AUTOF_DIR)/afcjk.c    \
                  $(AUTOF_DIR)/afdummy.c  \
                  $(AUTOF_DIR)/afglobal.c \
@@ -34,13 +35,20 @@ AUTOF_DRV_SRC := $(AUTOF_DIR)/afangles.c \
                  $(AUTOF_DIR)/aflatin.c  \
                  $(AUTOF_DIR)/afloader.c \
                  $(AUTOF_DIR)/afmodule.c \
-                 $(AUTOF_DIR)/afwarp.c
+                 $(AUTOF_DIR)/afpic.c    \
+                 $(AUTOF_DIR)/afranges.c \
+                 $(AUTOF_DIR)/afwarp.c   \
+                 $(AUTOF_DIR)/hbshim.c
 
 # AUTOF driver headers
 #
 AUTOF_DRV_H := $(AUTOF_DRV_SRC:%c=%h)  \
+               $(AUTOF_DIR)/afcover.h  \
+               $(AUTOF_DIR)/aferrors.h \
+               $(AUTOF_DIR)/afscript.h \
+               $(AUTOF_DIR)/afstyles.h \
                $(AUTOF_DIR)/aftypes.h  \
-               $(AUTOF_DIR)/aferrors.h
+               $(AUTOF_DIR)/afwrtsys.h
 
 
 # AUTOF driver object(s)