auto import from //depot/cupcake/@135843

25 files changed, 10374 insertions, 0 deletions

diff --git a/src/autofit/afangles.c b/src/autofit/afangles.c
new file mode 100644
index 0000000..e2360d1
--- /dev/null
+++ b/src/autofit/afangles.c
@@ -0,0 +1,292 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afangles.c                                                             */
+/*                                                                         */
+/*    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                                    */
+/*  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"
+
+
+#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...
+   */
+
+
+#if 0
+
+
+  /*
+   *  The trick here is to realize that we don't need a very accurate angle
+   *  approximation.  We are going to use the result of `af_angle_atan' to
+   *  only compare the sign of angle differences, or check whether its
+   *  magnitude is very small.
+   *
+   *  The approximation
+   *
+   *    dy * PI / (|dx|+|dy|)
+   *
+   *  should be enough, and much faster to compute.
+   */
+  FT_LOCAL_DEF( AF_Angle )
+  af_angle_atan( FT_Fixed  dx,
+                 FT_Fixed  dy )
+  {
+    AF_Angle  angle;
+    FT_Fixed  ax = dx;
+    FT_Fixed  ay = dy;
+
+
+    if ( ax < 0 )
+      ax = -ax;
+    if ( ay < 0 )
+      ay = -ay;
+
+    ax += ay;
+
+    if ( ax == 0 )
+      angle = 0;
+    else
+    {
+      angle = ( AF_ANGLE_PI2 * dy ) / ( ax + ay );
+      if ( dx < 0 )
+      {
+        if ( angle >= 0 )
+          angle = AF_ANGLE_PI - angle;
+        else
+          angle = -AF_ANGLE_PI - angle;
+      }
+    }
+
+    return angle;
+  }
+
+
+#elif 0
+
+
+  /* the following table has been automatically generated with */
+  /* the `mather.py' Python script                             */
+
+#define AF_ATAN_BITS  8
+
+  static const FT_Byte  af_arctan[1L << AF_ATAN_BITS] =
+  {
+     0,  0,  1,  1,  1,  2,  2,  2,
+     3,  3,  3,  3,  4,  4,  4,  5,
+     5,  5,  6,  6,  6,  7,  7,  7,
+     8,  8,  8,  9,  9,  9, 10, 10,
+    10, 10, 11, 11, 11, 12, 12, 12,
+    13, 13, 13, 14, 14, 14, 14, 15,
+    15, 15, 16, 16, 16, 17, 17, 17,
+    18, 18, 18, 18, 19, 19, 19, 20,
+    20, 20, 21, 21, 21, 21, 22, 22,
+    22, 23, 23, 23, 24, 24, 24, 24,
+    25, 25, 25, 26, 26, 26, 26, 27,
+    27, 27, 28, 28, 28, 28, 29, 29,
+    29, 30, 30, 30, 30, 31, 31, 31,
+    31, 32, 32, 32, 33, 33, 33, 33,
+    34, 34, 34, 34, 35, 35, 35, 35,
+    36, 36, 36, 36, 37, 37, 37, 38,
+    38, 38, 38, 39, 39, 39, 39, 40,
+    40, 40, 40, 41, 41, 41, 41, 42,
+    42, 42, 42, 42, 43, 43, 43, 43,
+    44, 44, 44, 44, 45, 45, 45, 45,
+    46, 46, 46, 46, 46, 47, 47, 47,
+    47, 48, 48, 48, 48, 48, 49, 49,
+    49, 49, 50, 50, 50, 50, 50, 51,
+    51, 51, 51, 51, 52, 52, 52, 52,
+    52, 53, 53, 53, 53, 53, 54, 54,
+    54, 54, 54, 55, 55, 55, 55, 55,
+    56, 56, 56, 56, 56, 57, 57, 57,
+    57, 57, 57, 58, 58, 58, 58, 58,
+    59, 59, 59, 59, 59, 59, 60, 60,
+    60, 60, 60, 61, 61, 61, 61, 61,
+    61, 62, 62, 62, 62, 62, 62, 63,
+    63, 63, 63, 63, 63, 64, 64, 64
+  };
+
+
+  FT_LOCAL_DEF( AF_Angle )
+  af_angle_atan( FT_Fixed  dx,
+                 FT_Fixed  dy )
+  {
+    AF_Angle  angle;
+
+
+    /* check trivial cases */
+    if ( dy == 0 )
+    {
+      angle = 0;
+      if ( dx < 0 )
+        angle = AF_ANGLE_PI;
+      return angle;
+    }
+    else if ( dx == 0 )
+    {
+      angle = AF_ANGLE_PI2;
+      if ( dy < 0 )
+        angle = -AF_ANGLE_PI2;
+      return angle;
+    }
+
+    angle = 0;
+    if ( dx < 0 )
+    {
+      dx = -dx;
+      dy = -dy;
+      angle = AF_ANGLE_PI;
+    }
+
+    if ( dy < 0 )
+    {
+      FT_Pos  tmp;
+
+
+      tmp = dx;
+      dx  = -dy;
+      dy  = tmp;
+      angle -= AF_ANGLE_PI2;
+    }
+
+    if ( dx == 0 && dy == 0 )
+      return 0;
+
+    if ( dx == dy )
+      angle += AF_ANGLE_PI4;
+    else if ( dx > dy )
+      angle += af_arctan[FT_DivFix( dy, dx ) >> ( 16 - AF_ATAN_BITS )];
+    else
+      angle += AF_ANGLE_PI2 -
+               af_arctan[FT_DivFix( dx, dy ) >> ( 16 - AF_ATAN_BITS )];
+
+    if ( angle > AF_ANGLE_PI )
+      angle -= AF_ANGLE_2PI;
+
+    return angle;
+  }
+
+
+#endif /* 0 */
+
+
+  FT_LOCAL_DEF( void )
+  af_sort_pos( FT_UInt  count,
+               FT_Pos*  table )
+  {
+    FT_UInt  i, j;
+    FT_Pos   swap;
+
+
+    for ( i = 1; i < count; i++ )
+    {
+      for ( j = i; j > 0; j-- )
+      {
+        if ( table[j] > table[j - 1] )
+          break;
+
+        swap         = table[j];
+        table[j]     = table[j - 1];
+        table[j - 1] = swap;
+      }
+    }
+  }
+
+
+  FT_LOCAL_DEF( void )
+  af_sort_widths( FT_UInt   count,
+                  AF_Width  table )
+  {
+    FT_UInt      i, j;
+    AF_WidthRec  swap;
+
+
+    for ( i = 1; i < count; i++ )
+    {
+      for ( j = i; j > 0; j-- )
+      {
+        if ( table[j].org > table[j - 1].org )
+          break;
+
+        swap         = table[j];
+        table[j]     = table[j - 1];
+        table[j - 1] = swap;
+      }
+    }
+  }
+
+
+/* END */
diff --git a/src/autofit/afangles.h b/src/autofit/afangles.h
new file mode 100644
index 0000000..f33f9e1
--- /dev/null
+++ b/src/autofit/afangles.h
@@ -0,0 +1,7 @@
+/*
+ *  afangles.h
+ *
+ *  This is a dummy file, used to please the build system.  It is never
+ *  included by the auto-fitter sources.
+ *
+ */
diff --git a/src/autofit/afcjk.c b/src/autofit/afcjk.c
new file mode 100644
index 0000000..7e9438b
--- /dev/null
+++ b/src/autofit/afcjk.c
@@ -0,0 +1,1508 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afcjk.c                                                                */
+/*                                                                         */
+/*    Auto-fitter hinting routines for CJK script (body).                  */
+/*                                                                         */
+/*  Copyright 2006, 2007 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 algorithm is based on akito's autohint patch, available here:
+   *
+   *  http://www.kde.gr.jp/~akito/patch/freetype2/
+   *
+   */
+
+#include "aftypes.h"
+#include "aflatin.h"
+
+
+#ifdef AF_CONFIG_OPTION_CJK
+
+#include "afcjk.h"
+#include "aferrors.h"
+
+
+#ifdef AF_USE_WARPER
+#include "afwarp.h"
+#endif
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****              C J K   G L O B A L   M E T R I C S              *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  FT_LOCAL_DEF( FT_Error )
+  af_cjk_metrics_init( AF_LatinMetrics  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;
+
+    /* latin's version would suffice */
+    af_latin_metrics_init_widths( metrics, face, 0x7530 );
+
+    FT_Set_Charmap( face, oldmap );
+
+    return AF_Err_Ok;
+  }
+
+
+  static void
+  af_cjk_metrics_scale_dim( AF_LatinMetrics  metrics,
+                            AF_Scaler        scaler,
+                            AF_Dimension     dim )
+  {
+    AF_LatinAxis  axis;
+
+
+    axis = &metrics->axis[dim];
+
+    if ( dim == AF_DIMENSION_HORZ )
+    {
+      axis->scale = scaler->x_scale;
+      axis->delta = scaler->x_delta;
+    }
+    else
+    {
+      axis->scale = scaler->y_scale;
+      axis->delta = scaler->y_delta;
+    }
+  }
+
+
+  FT_LOCAL_DEF( void )
+  af_cjk_metrics_scale( AF_LatinMetrics  metrics,
+                        AF_Scaler        scaler )
+  {
+    metrics->root.scaler = *scaler;
+
+    af_cjk_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ );
+    af_cjk_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT );
+  }
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****              C J K   G L Y P H   A N A L Y S I S              *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  static FT_Error
+  af_cjk_hints_compute_segments( AF_GlyphHints  hints,
+                                 AF_Dimension   dim )
+  {
+    AF_AxisHints  axis          = &hints->axis[dim];
+    AF_Segment    segments      = axis->segments;
+    AF_Segment    segment_limit = segments + axis->num_segments;
+    FT_Error      error;
+    AF_Segment    seg;
+
+
+    error = af_latin_hints_compute_segments( hints, dim );
+    if ( error )
+      return error;
+
+    /* a segment is round if it doesn't have successive */
+    /* on-curve points.                                 */
+    for ( seg = segments; seg < segment_limit; seg++ )
+    {
+      AF_Point  pt   = seg->first;
+      AF_Point  last = seg->last;
+      AF_Flags  f0   = (AF_Flags)(pt->flags & AF_FLAG_CONTROL);
+      AF_Flags  f1;
+
+
+      seg->flags &= ~AF_EDGE_ROUND;
+
+      for ( ; pt != last; f0 = f1 )
+      {
+        pt = pt->next;
+        f1 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL);
+
+        if ( !f0 && !f1 )
+          break;
+
+        if ( pt == last )
+          seg->flags |= AF_EDGE_ROUND;
+      }
+    }
+
+    return AF_Err_Ok;
+  }
+
+
+  static void
+  af_cjk_hints_link_segments( AF_GlyphHints  hints,
+                              AF_Dimension   dim )
+  {
+    AF_AxisHints  axis          = &hints->axis[dim];
+    AF_Segment    segments      = axis->segments;
+    AF_Segment    segment_limit = segments + axis->num_segments;
+    AF_Direction  major_dir     = axis->major_dir;
+    AF_Segment    seg1, seg2;
+    FT_Pos        len_threshold;
+    FT_Pos        dist_threshold;
+
+
+    len_threshold = AF_LATIN_CONSTANT( hints->metrics, 8 );
+
+    dist_threshold = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale
+                                                  : hints->y_scale;
+    dist_threshold = FT_DivFix( 64 * 3, dist_threshold );
+
+    /* 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;
+
+      for ( seg2 = segments; seg2 < segment_limit; seg2++ )
+        if ( seg2 != seg1 && seg1->dir + seg2->dir == 0 )
+        {
+          FT_Pos  dist = seg2->pos - seg1->pos;
+
+
+          if ( dist < 0 )
+            continue;
+
+          {
+            FT_Pos  min = seg1->min_coord;
+            FT_Pos  max = seg1->max_coord;
+            FT_Pos  len;
+
+
+            if ( min < seg2->min_coord )
+              min = seg2->min_coord;
+
+            if ( max > seg2->max_coord )
+              max = seg2->max_coord;
+
+            len = max - min;
+            if ( len >= len_threshold )
+            {
+              if ( dist * 8 < seg1->score * 9                        &&
+                   ( dist * 8 < seg1->score * 7 || seg1->len < len ) )
+              {
+                seg1->score = dist;
+                seg1->len   = len;
+                seg1->link  = seg2;
+              }
+
+              if ( dist * 8 < seg2->score * 9                        &&
+                   ( dist * 8 < seg2->score * 7 || seg2->len < len ) )
+              {
+                seg2->score = dist;
+                seg2->len   = len;
+                seg2->link  = seg1;
+              }
+            }
+          }
+        }
+    }
+
+    /*
+     *  now compute the `serif' segments
+     *
+     *  In Hanzi, some strokes are wider on one or both of the ends.
+     *  We either identify the stems on the ends as serifs or remove
+     *  the linkage, depending on the length of the stems.
+     *
+     */
+
+    {
+      AF_Segment  link1, link2;
+
+
+      for ( seg1 = segments; seg1 < segment_limit; seg1++ )
+      {
+        link1 = seg1->link;
+        if ( !link1 || link1->link != seg1 || link1->pos <= seg1->pos )
+          continue;
+
+        if ( seg1->score >= dist_threshold )
+          continue;
+
+        for ( seg2 = segments; seg2 < segment_limit; seg2++ )
+        {
+          if ( seg2->pos > seg1->pos || seg1 == seg2 )
+            continue;
+
+          link2 = seg2->link;
+          if ( !link2 || link2->link != seg2 || link2->pos < link1->pos )
+            continue;
+
+          if ( seg1->pos == seg2->pos && link1->pos == link2->pos )
+            continue;
+
+          if ( seg2->score <= seg1->score || seg1->score * 4 <= seg2->score )
+            continue;
+
+          /* seg2 < seg1 < link1 < link2 */
+
+          if ( seg1->len >= seg2->len * 3 )
+          {
+            AF_Segment  seg;
+
+
+            for ( seg = segments; seg < segment_limit; seg++ )
+            {
+              AF_Segment  link = seg->link;
+
+
+              if ( link == seg2 )
+              {
+                seg->link  = 0;
+                seg->serif = link1;
+              }
+              else if ( link == link2 )
+              {
+                seg->link  = 0;
+                seg->serif = seg1;
+              }
+            }
+          }
+          else
+          {
+            seg1->link = link1->link = 0;
+
+            break;
+          }
+        }
+      }
+    }
+
+    for ( seg1 = segments; seg1 < segment_limit; seg1++ )
+    {
+      seg2 = seg1->link;
+
+      if ( seg2 )
+      {
+        seg2->num_linked++;
+        if ( seg2->link != seg1 )
+        {
+          seg1->link = 0;
+
+          if ( seg2->score < dist_threshold || seg1->score < seg2->score * 4 )
+            seg1->serif = seg2->link;
+          else
+            seg2->num_linked--;
+        }
+      }
+    }
+  }
+
+
+  static FT_Error
+  af_cjk_hints_compute_edges( AF_GlyphHints  hints,
+                              AF_Dimension   dim )
+  {
+    AF_AxisHints  axis   = &hints->axis[dim];
+    FT_Error      error  = AF_Err_Ok;
+    FT_Memory     memory = hints->memory;
+    AF_LatinAxis  laxis  = &((AF_LatinMetrics)hints->metrics)->axis[dim];
+
+    AF_Segment    segments      = axis->segments;
+    AF_Segment    segment_limit = segments + axis->num_segments;
+    AF_Segment    seg;
+
+    FT_Fixed      scale;
+    FT_Pos        edge_distance_threshold;
+
+
+    axis->num_edges = 0;
+
+    scale = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale
+                                         : hints->y_scale;
+
+    /*********************************************************************/
+    /*                                                                   */
+    /* 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 is then processed in the second step to compute the    */
+    /* edge's properties.                                                */
+    /*                                                                   */
+    /* Note that the edges table is sorted along the segment/edge        */
+    /* position.                                                         */
+    /*                                                                   */
+    /*********************************************************************/
+
+    edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold,
+                                         scale );
+    if ( edge_distance_threshold > 64 / 4 )
+      edge_distance_threshold = FT_DivFix( 64 / 4, scale );
+    else
+      edge_distance_threshold = laxis->edge_distance_threshold;
+
+    for ( seg = segments; seg < segment_limit; seg++ )
+    {
+      AF_Edge  found = 0;
+      FT_Pos   best  = 0xFFFFU;
+      FT_Int   ee;
+
+
+      /* look for an edge corresponding to the segment */
+      for ( ee = 0; ee < axis->num_edges; ee++ )
+      {
+        AF_Edge  edge = axis->edges + ee;
+        FT_Pos   dist;
+
+
+        if ( edge->dir != seg->dir )
+          continue;
+
+        dist = seg->pos - edge->fpos;
+        if ( dist < 0 )
+          dist = -dist;
+
+        if ( dist < edge_distance_threshold && dist < best )
+        {
+          AF_Segment  link = seg->link;
+
+
+          /* check whether all linked segments of the candidate edge */
+          /* can make a single edge.                                 */
+          if ( link )
+          {
+            AF_Segment  seg1 = edge->first;
+            AF_Segment  link1;
+            FT_Pos      dist2 = 0;
+
+
+            do
+            {
+              link1 = seg1->link;
+              if ( link1 )
+              {
+                dist2 = AF_SEGMENT_DIST( link, link1 );
+                if ( dist2 >= edge_distance_threshold )
+                  break;
+              }
+
+            } while ( ( seg1 = seg1->edge_next ) != edge->first );
+
+            if ( dist2 >= edge_distance_threshold )
+              continue;
+          }
+
+          best  = dist;
+          found = edge;
+        }
+      }
+
+      if ( !found )
+      {
+        AF_Edge  edge;
+
+
+        /* insert a new edge in the list and */
+        /* sort according to the position    */
+        error = af_axis_hints_new_edge( axis, seg->pos,
+                                        (AF_Direction)seg->dir,
+                                        memory, &edge );
+        if ( error )
+          goto Exit;
+
+        /* add the segment to the new edge's list */
+        FT_ZERO( edge );
+
+        edge->first    = seg;
+        edge->last     = seg;
+        edge->fpos     = seg->pos;
+        edge->opos     = edge->pos = FT_MulFix( seg->pos, scale );
+        seg->edge_next = seg;
+        edge->dir      = seg->dir;
+      }
+      else
+      {
+        /* if an edge was found, simply add the segment to the edge's */
+        /* list                                                       */
+        seg->edge_next         = found->first;
+        found->last->edge_next = seg;
+        found->last            = seg;
+      }
+    }
+
+    /*********************************************************************/
+    /*                                                                   */
+    /* 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.                           */
+
+    {
+      AF_Edge  edges      = axis->edges;
+      AF_Edge  edge_limit = edges + axis->num_edges;
+      AF_Edge  edge;
+
+
+      for ( edge = edges; edge < edge_limit; edge++ )
+      {
+        seg = edge->first;
+        if ( seg )
+          do
+          {
+            seg->edge = edge;
+            seg       = seg->edge_next;
+
+          } while ( seg != edge->first );
+      }
+
+      /* 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? */
+
+
+        seg = edge->first;
+
+        do
+        {
+          FT_Bool  is_serif;
+
+
+          /* check for roundness of segment */
+          if ( seg->flags & AF_EDGE_ROUND )
+            is_round++;
+          else
+            is_straight++;
+
+          /* check for links -- if seg->serif is set, then seg->link must */
+          /* be ignored                                                   */
+          is_serif = (FT_Bool)( seg->serif && seg->serif->edge != edge );
+
+          if ( seg->link || is_serif )
+          {
+            AF_Edge     edge2;
+            AF_Segment  seg2;
+
+
+            edge2 = edge->link;
+            seg2  = seg->link;
+
+            if ( is_serif )
+            {
+              seg2  = seg->serif;
+              edge2 = edge->serif;
+            }
+
+            if ( edge2 )
+            {
+              FT_Pos  edge_delta;
+              FT_Pos  seg_delta;
+
+
+              edge_delta = edge->fpos - edge2->fpos;
+              if ( edge_delta < 0 )
+                edge_delta = -edge_delta;
+
+              seg_delta = AF_SEGMENT_DIST( seg, seg2 );
+
+              if ( seg_delta < edge_delta )
+                edge2 = seg2->edge;
+            }
+            else
+              edge2 = seg2->edge;
+
+            if ( is_serif )
+            {
+              edge->serif   = edge2;
+              edge2->flags |= AF_EDGE_SERIF;
+            }
+            else
+              edge->link  = edge2;
+          }
+
+          seg = seg->edge_next;
+
+        } while ( seg != edge->first );
+
+        /* set the round/straight flags */
+        edge->flags = AF_EDGE_NORMAL;
+
+        if ( is_round > 0 && is_round >= is_straight )
+          edge->flags |= AF_EDGE_ROUND;
+
+        /* 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     */
+
+        if ( edge->serif && edge->link )
+          edge->serif = 0;
+      }
+    }
+
+  Exit:
+    return error;
+  }
+
+
+  static FT_Error
+  af_cjk_hints_detect_features( AF_GlyphHints  hints,
+                                AF_Dimension   dim )
+  {
+    FT_Error  error;
+
+
+    error = af_cjk_hints_compute_segments( hints, dim );
+    if ( !error )
+    {
+      af_cjk_hints_link_segments( hints, dim );
+
+      error = af_cjk_hints_compute_edges( hints, dim );
+    }
+    return error;
+  }
+
+
+  FT_LOCAL_DEF( FT_Error )
+  af_cjk_hints_init( AF_GlyphHints    hints,
+                     AF_LatinMetrics  metrics )
+  {
+    FT_Render_Mode  mode;
+    FT_UInt32       scaler_flags, other_flags;
+
+
+    af_glyph_hints_rescale( hints, (AF_ScriptMetrics)metrics );
+
+    /*
+     *  correct x_scale and y_scale when needed, since they may have
+     *  been modified af_cjk_scale_dim above
+     */
+    hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale;
+    hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta;
+    hints->y_scale = metrics->axis[AF_DIMENSION_VERT].scale;
+    hints->y_delta = metrics->axis[AF_DIMENSION_VERT].delta;
+
+    /* compute flags depending on render mode, etc. */
+    mode = metrics->root.scaler.render_mode;
+
+#ifdef AF_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;
+    other_flags  = 0;
+
+    /*
+     *  We snap the width of vertical stems for the monochrome and
+     *  horizontal LCD rendering targets only.
+     */
+    if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD )
+      other_flags |= AF_LATIN_HINTS_HORZ_SNAP;
+
+    /*
+     *  We snap the width of horizontal stems for the monochrome and
+     *  vertical LCD rendering targets only.
+     */
+    if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD_V )
+      other_flags |= AF_LATIN_HINTS_VERT_SNAP;
+
+    /*
+     *  We adjust stems to full pixels only if we don't use the `light' mode.
+     */
+    if ( mode != FT_RENDER_MODE_LIGHT )
+      other_flags |= AF_LATIN_HINTS_STEM_ADJUST;
+
+    if ( mode == FT_RENDER_MODE_MONO )
+      other_flags |= AF_LATIN_HINTS_MONO;
+
+    scaler_flags |= AF_SCALER_FLAG_NO_ADVANCE;
+
+    hints->scaler_flags = scaler_flags;
+    hints->other_flags  = other_flags;
+
+    return 0;
+  }
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****          C J K   G L Y P H   G R I D - F I T T I N G          *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /* snap a given width in scaled coordinates to one of the */
+  /* current standard widths                                */
+
+  static FT_Pos
+  af_cjk_snap_width( AF_Width  widths,
+                     FT_Int    count,
+                     FT_Pos    width )
+  {
+    int     n;
+    FT_Pos  best      = 64 + 32 + 2;
+    FT_Pos  reference = width;
+    FT_Pos  scaled;
+
+
+    for ( n = 0; n < count; n++ )
+    {
+      FT_Pos  w;
+      FT_Pos  dist;
+
+
+      w = widths[n].cur;
+      dist = width - w;
+      if ( dist < 0 )
+        dist = -dist;
+      if ( dist < best )
+      {
+        best      = dist;
+        reference = w;
+      }
+    }
+
+    scaled = FT_PIX_ROUND( reference );
+
+    if ( width >= reference )
+    {
+      if ( width < scaled + 48 )
+        width = reference;
+    }
+    else
+    {
+      if ( width > scaled - 48 )
+        width = reference;
+    }
+
+    return width;
+  }
+
+
+  /* compute the snapped width of a given stem */
+
+  static FT_Pos
+  af_cjk_compute_stem_width( AF_GlyphHints  hints,
+                             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];
+    FT_Pos           dist     = width;
+    FT_Int           sign     = 0;
+    FT_Int           vertical = ( dim == AF_DIMENSION_VERT );
+
+    FT_UNUSED( base_flags );
+    FT_UNUSED( stem_flags );
+
+
+    if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) )
+      return width;
+
+    if ( dist < 0 )
+    {
+      dist = -width;
+      sign = 1;
+    }
+
+    if ( (  vertical && !AF_LATIN_HINTS_DO_VERT_SNAP( hints ) ) ||
+         ( !vertical && !AF_LATIN_HINTS_DO_HORZ_SNAP( hints ) ) )
+    {
+      /* smooth hinting process: very lightly quantize the stem width */
+
+      if ( axis->width_count > 0 )
+      {
+        if ( FT_ABS( dist - axis->widths[0].cur ) < 40 )
+        {
+          dist = axis->widths[0].cur;
+          if ( dist < 48 )
+            dist = 48;
+
+          goto Done_Width;
+        }
+      }
+
+      if ( dist < 54 )
+        dist += ( 54 - dist ) / 2 ;
+      else if ( dist < 3 * 64 )
+      {
+        FT_Pos  delta;
+
+
+        delta  = dist & 63;
+        dist  &= -64;
+
+        if ( delta < 10 )
+          dist += delta;
+        else if ( delta < 22 )
+          dist += 10;
+        else if ( delta < 42 )
+          dist += delta;
+        else if ( delta < 54 )
+          dist += 54;
+        else
+          dist += delta;
+      }
+    }
+    else
+    {
+      /* strong hinting process: snap the stem width to integer pixels */
+
+      dist = af_cjk_snap_width( axis->widths, axis->width_count, dist );
+
+      if ( vertical )
+      {
+        /* in the case of vertical hinting, always round */
+        /* the stem heights to integer pixels            */
+
+        if ( dist >= 64 )
+          dist = ( dist + 16 ) & ~63;
+        else
+          dist = 64;
+      }
+      else
+      {
+        if ( AF_LATIN_HINTS_DO_MONO( hints ) )
+        {
+          /* monochrome horizontal hinting: snap widths to integer pixels */
+          /* with a different threshold                                   */
+
+          if ( dist < 64 )
+            dist = 64;
+          else
+            dist = ( dist + 32 ) & ~63;
+        }
+        else
+        {
+          /* for horizontal anti-aliased hinting, we adopt a more subtle */
+          /* approach: we strengthen small stems, round stems whose size */
+          /* is between 1 and 2 pixels to an integer, otherwise nothing  */
+
+          if ( dist < 48 )
+            dist = ( dist + 64 ) >> 1;
+
+          else if ( dist < 128 )
+            dist = ( dist + 22 ) & ~63;
+          else
+            /* round otherwise to prevent color fringes in LCD mode */
+            dist = ( dist + 32 ) & ~63;
+        }
+      }
+    }
+
+  Done_Width:
+    if ( sign )
+      dist = -dist;
+
+    return dist;
+  }
+
+
+  /* align one stem edge relative to the previous stem edge */
+
+  static void
+  af_cjk_align_linked_edge( AF_GlyphHints  hints,
+                            AF_Dimension   dim,
+                            AF_Edge        base_edge,
+                            AF_Edge        stem_edge )
+  {
+    FT_Pos  dist = stem_edge->opos - base_edge->opos;
+
+    FT_Pos  fitted_width = af_cjk_compute_stem_width(
+                             hints, dim, dist,
+                             (AF_Edge_Flags)base_edge->flags,
+                             (AF_Edge_Flags)stem_edge->flags );
+
+
+    stem_edge->pos = base_edge->pos + fitted_width;
+  }
+
+
+  static void
+  af_cjk_align_serif_edge( AF_GlyphHints  hints,
+                           AF_Edge        base,
+                           AF_Edge        serif )
+  {
+    FT_UNUSED( hints );
+
+    serif->pos = base->pos + ( serif->opos - base->opos );
+  }
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+  /****                                                                 ****/
+  /****                    E D G E   H I N T I N G                      ****/
+  /****                                                                 ****/
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+
+
+#define AF_LIGHT_MODE_MAX_HORZ_GAP    9
+#define AF_LIGHT_MODE_MAX_VERT_GAP   15
+#define AF_LIGHT_MODE_MAX_DELTA_ABS  14
+
+
+  static FT_Pos
+  af_hint_normal_stem( AF_GlyphHints  hints,
+                       AF_Edge        edge,
+                       AF_Edge        edge2,
+                       FT_Pos         anchor,
+                       AF_Dimension   dim )
+  {
+    FT_Pos  org_len, cur_len, org_center;
+    FT_Pos  cur_pos1, cur_pos2;
+    FT_Pos  d_off1, u_off1, d_off2, u_off2, delta;
+    FT_Pos  offset;
+    FT_Pos  threshold = 64;
+
+
+    if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) )
+    {
+      if ( ( edge->flags  & AF_EDGE_ROUND ) &&
+           ( edge2->flags & AF_EDGE_ROUND ) )
+      {
+        if ( dim == AF_DIMENSION_VERT )
+          threshold = 64 - AF_LIGHT_MODE_MAX_HORZ_GAP;
+        else
+          threshold = 64 - AF_LIGHT_MODE_MAX_VERT_GAP;
+      }
+      else
+      {
+        if ( dim == AF_DIMENSION_VERT )
+          threshold = 64 - AF_LIGHT_MODE_MAX_HORZ_GAP / 3;
+        else
+          threshold = 64 - AF_LIGHT_MODE_MAX_VERT_GAP / 3;
+      }
+    }
+
+    org_len    = edge2->opos - edge->opos;
+    cur_len    = af_cjk_compute_stem_width( hints, dim, org_len,
+                                            (AF_Edge_Flags)edge->flags,
+                                            (AF_Edge_Flags)edge2->flags );
+
+    org_center = ( edge->opos + edge2->opos ) / 2 + anchor;
+    cur_pos1   = org_center - cur_len / 2;
+    cur_pos2   = cur_pos1 + cur_len;
+    d_off1     = cur_pos1 - FT_PIX_FLOOR( cur_pos1 );
+    d_off2     = cur_pos2 - FT_PIX_FLOOR( cur_pos2 );
+    u_off1     = 64 - d_off1;
+    u_off2     = 64 - d_off2;
+    delta      = 0;
+
+
+    if ( d_off1 == 0 || d_off2 == 0 )
+      goto Exit;
+
+    if ( cur_len <= threshold )
+    {
+      if ( d_off2 < cur_len )
+      {
+        if ( u_off1 <= d_off2 )
+          delta =  u_off1;
+        else
+          delta = -d_off2;
+      }
+
+      goto Exit;
+    }
+
+    if ( threshold < 64 )
+    {
+      if ( d_off1 >= threshold || u_off1 >= threshold ||
+           d_off2 >= threshold || u_off2 >= threshold )
+        goto Exit;
+    }
+
+    offset = cur_len % 64;
+
+    if ( offset < 32 )
+    {
+      if ( u_off1 <= offset || d_off2 <= offset )
+        goto Exit;
+    }
+    else
+      offset = 64 - threshold;
+
+    d_off1 = threshold - u_off1;
+    u_off1 = u_off1    - offset;
+    u_off2 = threshold - d_off2;
+    d_off2 = d_off2    - offset;
+
+    if ( d_off1 <= u_off1 )
+      u_off1 = -d_off1;
+
+    if ( d_off2 <= u_off2 )
+      u_off2 = -d_off2;
+
+    if ( FT_ABS( u_off1 ) <= FT_ABS( u_off2 ) )
+      delta = u_off1;
+    else
+      delta = u_off2;
+
+  Exit:
+
+#if 1
+    if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) )
+    {
+      if ( delta > AF_LIGHT_MODE_MAX_DELTA_ABS )
+        delta = AF_LIGHT_MODE_MAX_DELTA_ABS;
+      else if ( delta < -AF_LIGHT_MODE_MAX_DELTA_ABS )
+        delta = -AF_LIGHT_MODE_MAX_DELTA_ABS;
+    }
+#endif
+
+    cur_pos1 += delta;
+
+    if ( edge->opos < edge2->opos )
+    {
+      edge->pos  = cur_pos1;
+      edge2->pos = cur_pos1 + cur_len;
+    }
+    else
+    {
+      edge->pos  = cur_pos1 + cur_len;
+      edge2->pos = cur_pos1;
+    }
+
+    return delta;
+  }
+
+
+  static void
+  af_cjk_hint_edges( AF_GlyphHints  hints,
+                     AF_Dimension   dim )
+  {
+    AF_AxisHints  axis       = &hints->axis[dim];
+    AF_Edge       edges      = axis->edges;
+    AF_Edge       edge_limit = edges + axis->num_edges;
+    FT_Int        n_edges;
+    AF_Edge       edge;
+    AF_Edge       anchor   = 0;
+    FT_Pos        delta    = 0;
+    FT_Int        skipped  = 0;
+
+
+    /* now we align all stem edges. */
+    for ( edge = edges; edge < edge_limit; edge++ )
+    {
+      AF_Edge  edge2;
+
+
+      if ( edge->flags & AF_EDGE_DONE )
+        continue;
+
+      /* skip all non-stem edges */
+      edge2 = edge->link;
+      if ( !edge2 )
+      {
+        skipped++;
+        continue;
+      }
+
+      /* now align the stem */
+
+      if ( edge2 < edge )
+      {
+        af_cjk_align_linked_edge( hints, dim, edge2, edge );
+        edge->flags |= AF_EDGE_DONE;
+        continue;
+      }
+
+      if ( dim != AF_DIMENSION_VERT && !anchor )
+      {
+
+#if 0
+        if ( fixedpitch )
+        {
+          AF_Edge     left  = edge;
+          AF_Edge     right = edge_limit - 1;
+          AF_EdgeRec  left1, left2, right1, right2;
+          FT_Pos      target, center1, center2;
+          FT_Pos      delta1, delta2, d1, d2;
+
+
+          while ( right > left && !right->link )
+            right--;
+
+          left1  = *left;
+          left2  = *left->link;
+          right1 = *right->link;
+          right2 = *right;
+
+          delta  = ( ( ( hinter->pp2.x + 32 ) & -64 ) - hinter->pp2.x ) / 2;
+          target = left->opos + ( right->opos - left->opos ) / 2 + delta - 16;
+
+          delta1  = delta;
+          delta1 += af_hint_normal_stem( hints, left, left->link,
+                                         delta1, 0 );
+
+          if ( left->link != right )
+            af_hint_normal_stem( hints, right->link, right, delta1, 0 );
+
+          center1 = left->pos + ( right->pos - left->pos ) / 2;
+
+          if ( center1 >= target )
+            delta2 = delta - 32;
+          else
+            delta2 = delta + 32;
+
+          delta2 += af_hint_normal_stem( hints, &left1, &left2, delta2, 0 );
+
+          if ( delta1 != delta2 )
+          {
+            if ( left->link != right )
+              af_hint_normal_stem( hints, &right1, &right2, delta2, 0 );
+
+            center2 = left1.pos + ( right2.pos - left1.pos ) / 2;
+
+            d1 = center1 - target;
+            d2 = center2 - target;
+
+            if ( FT_ABS( d2 ) < FT_ABS( d1 ) )
+            {
+              left->pos       = left1.pos;
+              left->link->pos = left2.pos;
+
+              if ( left->link != right )
+              {
+                right->link->pos = right1.pos;
+                right->pos       = right2.pos;
+              }
+
+              delta1 = delta2;
+            }
+          }
+
+          delta               = delta1;
+          right->link->flags |= AF_EDGE_DONE;
+          right->flags       |= AF_EDGE_DONE;
+        }
+        else
+
+#endif /* 0 */
+
+          delta = af_hint_normal_stem( hints, edge, edge2, 0,
+                                       AF_DIMENSION_HORZ );
+      }
+      else
+        af_hint_normal_stem( hints, edge, edge2, delta, dim );
+
+#if 0
+      printf( "stem (%d,%d) adjusted (%.1f,%.1f)\n",
+               edge - edges, edge2 - edges,
+               ( edge->pos - edge->opos ) / 64.0,
+               ( edge2->pos - edge2->opos ) / 64.0 );
+#endif
+
+      anchor = edge;
+      edge->flags  |= AF_EDGE_DONE;
+      edge2->flags |= AF_EDGE_DONE;
+    }
+
+    /* make sure that lowercase m's maintain their symmetry */
+
+    /* In general, lowercase m's have six vertical edges if they are sans */
+    /* serif, or twelve if they are with serifs.  This implementation is  */
+    /* based on that assumption, and seems to work very well with most    */
+    /* faces.  However, if for a certain face this assumption is not      */
+    /* true, the m is just rendered like before.  In addition, any stem   */
+    /* correction will only be applied to symmetrical glyphs (even if the */
+    /* glyph is not an m), so the potential for unwanted distortion is    */
+    /* relatively low.                                                    */
+
+    /* We don't handle horizontal edges since we can't easily assure that */
+    /* the third (lowest) stem aligns with the base line; it might end up */
+    /* one pixel higher or lower.                                         */
+
+    n_edges = edge_limit - edges;
+    if ( dim == AF_DIMENSION_HORZ && ( n_edges == 6 || n_edges == 12 ) )
+    {
+      AF_Edge  edge1, edge2, edge3;
+      FT_Pos   dist1, dist2, span;
+
+
+      if ( n_edges == 6 )
+      {
+        edge1 = edges;
+        edge2 = edges + 2;
+        edge3 = edges + 4;
+      }
+      else
+      {
+        edge1 = edges + 1;
+        edge2 = edges + 5;
+        edge3 = edges + 9;
+      }
+
+      dist1 = edge2->opos - edge1->opos;
+      dist2 = edge3->opos - edge2->opos;
+
+      span = dist1 - dist2;
+      if ( span < 0 )
+        span = -span;
+
+      if ( edge1->link == edge1 + 1 &&
+           edge2->link == edge2 + 1 &&
+           edge3->link == edge3 + 1 && span < 8 )
+      {
+        delta = edge3->pos - ( 2 * edge2->pos - edge1->pos );
+        edge3->pos -= delta;
+        if ( edge3->link )
+          edge3->link->pos -= delta;
+
+        /* move the serifs along with the stem */
+        if ( n_edges == 12 )
+        {
+          ( edges + 8 )->pos -= delta;
+          ( edges + 11 )->pos -= delta;
+        }
+
+        edge3->flags |= AF_EDGE_DONE;
+        if ( edge3->link )
+          edge3->link->flags |= AF_EDGE_DONE;
+      }
+    }
+
+    if ( !skipped )
+      return;
+
+    /*
+     *  now hint the remaining edges (serifs and single) in order
+     *  to complete our processing
+     */
+    for ( edge = edges; edge < edge_limit; edge++ )
+    {
+      if ( edge->flags & AF_EDGE_DONE )
+        continue;
+
+      if ( edge->serif )
+      {
+        af_cjk_align_serif_edge( hints, edge->serif, edge );
+        edge->flags |= AF_EDGE_DONE;
+        skipped--;
+      }
+    }
+
+    if ( !skipped )
+      return;
+
+    for ( edge = edges; edge < edge_limit; edge++ )
+    {
+      AF_Edge  before, after;
+
+
+      if ( edge->flags & AF_EDGE_DONE )
+        continue;
+
+      before = after = edge;
+
+      while ( --before >= edges )
+        if ( before->flags & AF_EDGE_DONE )
+          break;
+
+      while ( ++after < edge_limit )
+        if ( after->flags & AF_EDGE_DONE )
+          break;
+
+      if ( before >= edges || after < edge_limit )
+      {
+        if ( before < edges )
+          af_cjk_align_serif_edge( hints, after, edge );
+        else if ( after >= edge_limit )
+          af_cjk_align_serif_edge( hints, before, edge );
+        else
+          edge->pos = before->pos +
+            FT_MulDiv( edge->fpos - before->fpos,
+                       after->pos - before->pos,
+                       after->fpos - before->fpos );
+      }
+    }
+  }
+
+
+  static void
+  af_cjk_align_edge_points( AF_GlyphHints  hints,
+                            AF_Dimension   dim )
+  {
+    AF_AxisHints  axis       = & hints->axis[dim];
+    AF_Edge       edges      = axis->edges;
+    AF_Edge       edge_limit = edges + axis->num_edges;
+    AF_Edge       edge;
+    FT_Bool       snapping;
+
+
+    snapping = FT_BOOL( ( dim == AF_DIMENSION_HORZ             &&
+                          AF_LATIN_HINTS_DO_HORZ_SNAP( hints ) )  ||
+                        ( dim == AF_DIMENSION_VERT             &&
+                          AF_LATIN_HINTS_DO_VERT_SNAP( hints ) )  );
+
+    for ( edge = edges; edge < edge_limit; edge++ )
+    {
+      /* move the points of each segment     */
+      /* in each edge to the edge's position */
+      AF_Segment  seg = edge->first;
+
+
+      if ( snapping )
+      {
+        do
+        {
+          AF_Point  point = seg->first;
+
+
+          for (;;)
+          {
+            if ( dim == AF_DIMENSION_HORZ )
+            {
+              point->x      = edge->pos;
+              point->flags |= AF_FLAG_TOUCH_X;
+            }
+            else
+            {
+              point->y      = edge->pos;
+              point->flags |= AF_FLAG_TOUCH_Y;
+            }
+
+            if ( point == seg->last )
+              break;
+
+            point = point->next;
+          }
+
+          seg = seg->edge_next;
+
+        } while ( seg != edge->first );
+      }
+      else
+      {
+        FT_Pos  delta = edge->pos - edge->opos;
+
+
+        do
+        {
+          AF_Point  point = seg->first;
+
+
+          for (;;)
+          {
+            if ( dim == AF_DIMENSION_HORZ )
+            {
+              point->x     += delta;
+              point->flags |= AF_FLAG_TOUCH_X;
+            }
+            else
+            {
+              point->y     += delta;
+              point->flags |= AF_FLAG_TOUCH_Y;
+            }
+
+            if ( point == seg->last )
+              break;
+
+            point = point->next;
+          }
+
+          seg = seg->edge_next;
+
+        } while ( seg != edge->first );
+      }
+    }
+  }
+
+
+  FT_LOCAL_DEF( FT_Error )
+  af_cjk_hints_apply( AF_GlyphHints    hints,
+                      FT_Outline*      outline,
+                      AF_LatinMetrics  metrics )
+  {
+    FT_Error  error;
+    int       dim;
+
+    FT_UNUSED( metrics );
+
+
+    error = af_glyph_hints_reload( hints, outline, 0 );
+    if ( error )
+      goto Exit;
+
+    /* analyze glyph outline */
+    if ( AF_HINTS_DO_HORIZONTAL( hints ) )
+    {
+      error = af_cjk_hints_detect_features( hints, AF_DIMENSION_HORZ );
+      if ( error )
+        goto Exit;
+    }
+
+    if ( AF_HINTS_DO_VERTICAL( hints ) )
+    {
+      error = af_cjk_hints_detect_features( hints, AF_DIMENSION_VERT );
+      if ( error )
+        goto Exit;
+    }
+
+    /* grid-fit the outline */
+    for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
+    {
+      if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) ||
+           ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) )   )
+      {
+
+#ifdef AF_USE_WARPER
+        if ( dim == AF_DIMENSION_HORZ                                  &&
+             metrics->root.scaler.render_mode == FT_RENDER_MODE_NORMAL )
+        {
+          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 );
+          continue;
+        }
+#endif /* AF_USE_WARPER */
+
+        af_cjk_hint_edges( hints, (AF_Dimension)dim );
+        af_cjk_align_edge_points( hints, (AF_Dimension)dim );
+        af_glyph_hints_align_strong_points( hints, (AF_Dimension)dim );
+        af_glyph_hints_align_weak_points( hints, (AF_Dimension)dim );
+      }
+    }
+
+#if 0
+    af_glyph_hints_dump_points( hints );
+    af_glyph_hints_dump_segments( hints );
+    af_glyph_hints_dump_edges( hints );
+#endif
+
+    af_glyph_hints_save( hints, outline );
+
+  Exit:
+    return error;
+  }
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                C J K   S C R I P T   C L A S S                *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+
+  static const AF_Script_UniRangeRec  af_cjk_uniranges[] =
+  {
+#if 0
+    { 0x0100,  0xFFFF },  /* why this? */
+#endif
+    { 0x2E80,  0x2EFF },  /* CJK Radicals Supplement */
+    { 0x2F00,  0x2FDF },  /* Kangxi Radicals */
+    { 0x3000,  0x303F },  /* CJK Symbols and Punctuation */
+    { 0x3040,  0x309F },  /* Hiragana */
+    { 0x30A0,  0x30FF },  /* Katakana */
+    { 0x3100,  0x312F },  /* Bopomofo */
+    { 0x3130,  0x318F },  /* Hangul Compatibility Jamo */
+    { 0x31A0,  0x31BF },  /* Bopomofo Extended */
+    { 0x31C0,  0x31EF },  /* CJK Strokes */
+    { 0x31F0,  0x31FF },  /* Katakana Phonetic Extensions */
+    { 0x3200,  0x32FF },  /* Enclosed CJK Letters and Months */
+    { 0x3300,  0x33FF },  /* CJK Compatibility */
+    { 0x3400,  0x4DBF },  /* CJK Unified Ideographs Extension A */
+    { 0x4DC0,  0x4DFF },  /* Yijing Hexagram Symbols */
+    { 0x4E00,  0x9FFF },  /* CJK Unified Ideographs */
+    { 0xF900,  0xFAFF },  /* CJK Compatibility Ideographs */
+    { 0xFE30,  0xFE4F },  /* CJK Compatibility Forms */
+    { 0xFF00,  0xFFEF },  /* Halfwidth and Fullwidth Forms */
+    { 0x20000, 0x2A6DF }, /* CJK Unified Ideographs Extension B */
+    { 0x2F800, 0x2FA1F }, /* CJK Compatibility Ideographs Supplement */
+    { 0,       0 }
+  };
+
+
+  FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec
+  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
+  };
+
+#else /* !AF_CONFIG_OPTION_CJK */
+
+  static const AF_Script_UniRangeRec  af_cjk_uniranges[] =
+  {
+    { 0, 0 }
+  };
+
+
+  FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec
+  af_cjk_script_class =
+  {
+    AF_SCRIPT_CJK,
+    af_cjk_uniranges,
+
+    sizeof( AF_LatinMetricsRec ),
+
+    (AF_Script_InitMetricsFunc) NULL,
+    (AF_Script_ScaleMetricsFunc)NULL,
+    (AF_Script_DoneMetricsFunc) NULL,
+
+    (AF_Script_InitHintsFunc)   NULL,
+    (AF_Script_ApplyHintsFunc)  NULL
+  };
+
+#endif /* !AF_CONFIG_OPTION_CJK */
+
+
+/* END */
diff --git a/src/autofit/afcjk.h b/src/autofit/afcjk.h
new file mode 100644
index 0000000..9f77fda
--- /dev/null
+++ b/src/autofit/afcjk.h
@@ -0,0 +1,58 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afcjk.h                                                                */
+/*                                                                         */
+/*    Auto-fitter hinting routines for CJK script (specification).         */
+/*                                                                         */
+/*  Copyright 2006, 2007 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 __AFCJK_H__
+#define __AFCJK_H__
+
+#include "afhints.h"
+
+
+FT_BEGIN_HEADER
+
+
+  /* the CJK-specific script class */
+
+  FT_CALLBACK_TABLE const AF_ScriptClassRec
+  af_cjk_script_class;
+
+
+  FT_LOCAL( FT_Error )
+  af_cjk_metrics_init( AF_LatinMetrics  metrics,
+                       FT_Face          face );
+
+  FT_LOCAL( void )
+  af_cjk_metrics_scale( AF_LatinMetrics  metrics,
+                        AF_Scaler        scaler );
+
+  FT_LOCAL( FT_Error )
+  af_cjk_hints_init( AF_GlyphHints    hints,
+                     AF_LatinMetrics  metrics );
+
+  FT_LOCAL( FT_Error )
+  af_cjk_hints_apply( AF_GlyphHints    hints,
+                      FT_Outline*      outline,
+                      AF_LatinMetrics  metrics );
+
+/* */
+
+FT_END_HEADER
+
+#endif /* __AFCJK_H__ */
+
+
+/* END */
diff --git a/src/autofit/afdummy.c b/src/autofit/afdummy.c
new file mode 100644
index 0000000..ed96e96
--- /dev/null
+++ b/src/autofit/afdummy.c
@@ -0,0 +1,62 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afdummy.c                                                              */
+/*                                                                         */
+/*    Auto-fitter dummy routines to be used if no hinting should be        */
+/*    performed (body).                                                    */
+/*                                                                         */
+/*  Copyright 2003, 2004, 2005 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 "afdummy.h"
+#include "afhints.h"
+
+
+  static FT_Error
+  af_dummy_hints_init( AF_GlyphHints     hints,
+                       AF_ScriptMetrics  metrics )
+  {
+    af_glyph_hints_rescale( hints,
+                            metrics );
+    return 0;
+  }
+
+
+  static FT_Error
+  af_dummy_hints_apply( AF_GlyphHints  hints,
+                        FT_Outline*    outline )
+  {
+    FT_UNUSED( hints );
+    FT_UNUSED( outline );
+
+    return 0;
+  }
+
+
+  FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec
+  af_dummy_script_class =
+  {
+    AF_SCRIPT_NONE,
+    NULL,
+
+    sizeof( AF_ScriptMetricsRec ),
+
+    (AF_Script_InitMetricsFunc) NULL,
+    (AF_Script_ScaleMetricsFunc)NULL,
+    (AF_Script_DoneMetricsFunc) NULL,
+
+    (AF_Script_InitHintsFunc)   af_dummy_hints_init,
+    (AF_Script_ApplyHintsFunc)  af_dummy_hints_apply
+  };
+
+
+/* END */
diff --git a/src/autofit/afdummy.h b/src/autofit/afdummy.h
new file mode 100644
index 0000000..2a5faf8
--- /dev/null
+++ b/src/autofit/afdummy.h
@@ -0,0 +1,43 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afdummy.h                                                              */
+/*                                                                         */
+/*    Auto-fitter dummy routines to be used if no hinting should be        */
+/*    performed (specification).                                           */
+/*                                                                         */
+/*  Copyright 2003, 2004, 2005 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 __AFDUMMY_H__
+#define __AFDUMMY_H__
+
+#include "aftypes.h"
+
+
+FT_BEGIN_HEADER
+
+ /*  A dummy script metrics class used when no hinting should
+  *  be performed.  This is the default for non-latin glyphs!
+  */
+
+  FT_CALLBACK_TABLE const AF_ScriptClassRec
+  af_dummy_script_class;
+
+/* */
+
+FT_END_HEADER
+
+
+#endif /* __AFDUMMY_H__ */
+
+
+/* END */
diff --git a/src/autofit/aferrors.h b/src/autofit/aferrors.h
new file mode 100644
index 0000000..c2ed5fe
--- /dev/null
+++ b/src/autofit/aferrors.h
@@ -0,0 +1,40 @@
+/***************************************************************************/
+/*                                                                         */
+/*  aferrors.h                                                             */
+/*                                                                         */
+/*    Autofitter error codes (specification only).                         */
+/*                                                                         */
+/*  Copyright 2005 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 is used to define the Autofitter error enumeration          */
+  /* constants.                                                            */
+  /*                                                                       */
+  /*************************************************************************/
+
+#ifndef __AFERRORS_H__
+#define __AFERRORS_H__
+
+#include FT_MODULE_ERRORS_H
+
+#undef __FTERRORS_H__
+
+#define FT_ERR_PREFIX  AF_Err_
+#define FT_ERR_BASE    FT_Mod_Err_Autofit
+
+#include FT_ERRORS_H
+
+#endif /* __AFERRORS_H__ */
+
+/* END */
diff --git a/src/autofit/afglobal.c b/src/autofit/afglobal.c
new file mode 100644
index 0000000..bfb9091
--- /dev/null
+++ b/src/autofit/afglobal.c
@@ -0,0 +1,289 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afglobal.c                                                             */
+/*                                                                         */
+/*    Auto-fitter routines to compute global hinting values (body).        */
+/*                                                                         */
+/*  Copyright 2003, 2004, 2005, 2006, 2007, 2008 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 "afglobal.h"
+#include "afdummy.h"
+#include "aflatin.h"
+#include "afcjk.h"
+#include "afindic.h"
+
+#include "aferrors.h"
+
+#ifdef FT_OPTION_AUTOFIT2
+#include "aflatin2.h"
+#endif
+
+  /* populate this list when you add new scripts */
+  static AF_ScriptClass const  af_script_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, 
+    NULL  /* do not remove */
+  };
+
+  /* index of default script in `af_script_classes' */
+#define AF_SCRIPT_LIST_DEFAULT  2
+  /* indicates an uncovered glyph                   */
+#define AF_SCRIPT_LIST_NONE   255
+
+
+  /*
+   *  Note that glyph_scripts[] is used to map each glyph into
+   *  an index into the `af_script_classes' array.
+   *
+   */
+  typedef struct  AF_FaceGlobalsRec_
+  {
+    FT_Face           face;
+    FT_UInt           glyph_count;    /* same as face->num_glyphs */
+    FT_Byte*          glyph_scripts;
+
+    AF_ScriptMetrics  metrics[AF_SCRIPT_MAX];
+
+  } AF_FaceGlobalsRec;
+
+
+  /* Compute the script index of each glyph within a given face. */
+
+  static FT_Error
+  af_face_globals_compute_script_coverage( AF_FaceGlobals  globals )
+  {
+    FT_Error    error       = AF_Err_Ok;
+    FT_Face     face        = globals->face;
+    FT_CharMap  old_charmap = face->charmap;
+    FT_Byte*    gscripts    = globals->glyph_scripts;
+    FT_UInt     ss;
+
+
+    /* the value 255 means `uncovered glyph' */
+    FT_MEM_SET( globals->glyph_scripts,
+                AF_SCRIPT_LIST_NONE,
+                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;
+      goto Exit;
+    }
+
+    /* scan each script in a Unicode charmap */
+    for ( ss = 0; af_script_classes[ss]; ss++ )
+    {
+      AF_ScriptClass      clazz = af_script_classes[ss];
+      AF_Script_UniRange  range;
+
+
+      if ( clazz->script_uni_ranges == NULL )
+        continue;
+
+      /*
+       *  Scan all unicode points in the range and set the corresponding
+       *  glyph script index.
+       */
+      for ( range = clazz->script_uni_ranges; range->first != 0; range++ )
+      {
+        FT_ULong  charcode = range->first;
+        FT_UInt   gindex;
+
+
+        gindex = FT_Get_Char_Index( face, charcode );
+
+        if ( gindex != 0                             &&
+             gindex < globals->glyph_count           &&
+             gscripts[gindex] == AF_SCRIPT_LIST_NONE )
+        {
+          gscripts[gindex] = (FT_Byte)ss;
+        }
+
+        for (;;)
+        {
+          charcode = FT_Get_Next_Char( face, charcode, &gindex );
+
+          if ( gindex == 0 || charcode > range->last )
+            break;
+
+          if ( gindex < globals->glyph_count           &&
+               gscripts[gindex] == AF_SCRIPT_LIST_NONE )
+          {
+            gscripts[gindex] = (FT_Byte)ss;
+          }
+        }
+      }
+    }
+
+  Exit:
+    /*
+     *  By default, all uncovered glyphs are set to the latin script.
+     *  XXX: Shouldn't we disable hinting or do something similar?
+     */
+    {
+      FT_UInt  nn;
+
+
+      for ( nn = 0; nn < globals->glyph_count; nn++ )
+      {
+        if ( gscripts[nn] == AF_SCRIPT_LIST_NONE )
+          gscripts[nn] = AF_SCRIPT_LIST_DEFAULT;
+      }
+    }
+
+    FT_Set_Charmap( face, old_charmap );
+    return error;
+  }
+
+
+  FT_LOCAL_DEF( FT_Error )
+  af_face_globals_new( FT_Face          face,
+                       AF_FaceGlobals  *aglobals )
+  {
+    FT_Error        error;
+    FT_Memory       memory;
+    AF_FaceGlobals  globals;
+
+
+    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 );
+
+      error = af_face_globals_compute_script_coverage( globals );
+      if ( error )
+      {
+        af_face_globals_free( globals );
+        globals = NULL;
+      }
+    }
+
+    *aglobals = globals;
+    return error;
+  }
+
+
+  FT_LOCAL_DEF( void )
+  af_face_globals_free( AF_FaceGlobals  globals )
+  {
+    if ( globals )
+    {
+      FT_Memory  memory = globals->face->memory;
+      FT_UInt    nn;
+
+
+      for ( nn = 0; nn < AF_SCRIPT_MAX; nn++ )
+      {
+        if ( globals->metrics[nn] )
+        {
+          AF_ScriptClass  clazz = af_script_classes[nn];
+
+
+          FT_ASSERT( globals->metrics[nn]->clazz == clazz );
+
+          if ( clazz->script_metrics_done )
+            clazz->script_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;
+
+      FT_FREE( globals );
+    }
+  }
+
+
+  FT_LOCAL_DEF( FT_Error )
+  af_face_globals_get_metrics( AF_FaceGlobals     globals,
+                               FT_UInt            gindex,
+                               FT_UInt            options,
+                               AF_ScriptMetrics  *ametrics )
+  {
+    AF_ScriptMetrics  metrics = NULL;
+    FT_UInt           gidx;
+    AF_ScriptClass    clazz;
+    FT_UInt           script     = options & 15;
+    const FT_UInt     script_max = sizeof ( af_script_classes ) /
+                                     sizeof ( af_script_classes[0] );
+    FT_Error          error      = AF_Err_Ok;
+
+
+    if ( gindex >= globals->glyph_count )
+    {
+      error = AF_Err_Invalid_Argument;
+      goto Exit;
+    }
+
+    gidx = script;
+    if ( gidx == 0 || gidx + 1 >= script_max )
+      gidx = globals->glyph_scripts[gindex];
+
+    clazz = af_script_classes[gidx];
+    if ( script == 0 )
+      script = clazz->script;
+
+    metrics = globals->metrics[clazz->script];
+    if ( metrics == NULL )
+    {
+      /* create the global metrics object when needed */
+      FT_Memory  memory = globals->face->memory;
+
+
+      if ( FT_ALLOC( metrics, clazz->script_metrics_size ) )
+        goto Exit;
+
+      metrics->clazz = clazz;
+
+      if ( clazz->script_metrics_init )
+      {
+        error = clazz->script_metrics_init( metrics, globals->face );
+        if ( error )
+        {
+          if ( clazz->script_metrics_done )
+            clazz->script_metrics_done( metrics );
+
+          FT_FREE( metrics );
+          goto Exit;
+        }
+      }
+
+      globals->metrics[clazz->script] = metrics;
+    }
+
+  Exit:
+    *ametrics = metrics;
+
+    return error;
+  }
+
+
+/* END */
diff --git a/src/autofit/afglobal.h b/src/autofit/afglobal.h
new file mode 100644
index 0000000..cf52c08
--- /dev/null
+++ b/src/autofit/afglobal.h
@@ -0,0 +1,67 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afglobal.h                                                             */
+/*                                                                         */
+/*    Auto-fitter routines to compute global hinting values                */
+/*    (specification).                                                     */
+/*                                                                         */
+/*  Copyright 2003, 2004, 2005, 2007 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 __AF_GLOBAL_H__
+#define __AF_GLOBAL_H__
+
+
+#include "aftypes.h"
+
+
+FT_BEGIN_HEADER
+
+
+  /************************************************************************/
+  /************************************************************************/
+  /*****                                                              *****/
+  /*****                  F A C E   G L O B A L S                     *****/
+  /*****                                                              *****/
+  /************************************************************************/
+  /************************************************************************/
+
+
+  /*
+   *  model the global hints data for a given face, decomposed into
+   *  script-specific items
+   */
+  typedef struct AF_FaceGlobalsRec_*   AF_FaceGlobals;
+
+
+  FT_LOCAL( FT_Error )
+  af_face_globals_new( FT_Face          face,
+                       AF_FaceGlobals  *aglobals );
+
+  FT_LOCAL( FT_Error )
+  af_face_globals_get_metrics( AF_FaceGlobals     globals,
+                               FT_UInt            gindex,
+                               FT_UInt            options,
+                               AF_ScriptMetrics  *ametrics );
+
+  FT_LOCAL( void )
+  af_face_globals_free( AF_FaceGlobals  globals );
+
+ /* */
+
+
+FT_END_HEADER
+
+#endif /* __AF_GLOBALS_H__ */
+
+
+/* END */
diff --git a/src/autofit/afhints.c b/src/autofit/afhints.c
new file mode 100644
index 0000000..4828706
--- /dev/null
+++ b/src/autofit/afhints.c
@@ -0,0 +1,1264 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afhints.c                                                              */
+/*                                                                         */
+/*    Auto-fitter hinting routines (body).                                 */
+/*                                                                         */
+/*  Copyright 2003, 2004, 2005, 2006, 2007 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 "afhints.h"
+#include "aferrors.h"
+#include FT_INTERNAL_CALC_H
+
+
+  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;
+    AF_Segment  segment = NULL;
+
+
+    if ( axis->num_segments >= axis->max_segments )
+    {
+      FT_Int  old_max = axis->max_segments;
+      FT_Int  new_max = old_max;
+      FT_Int  big_max = FT_INT_MAX / sizeof ( *segment );
+
+
+      if ( old_max >= big_max )
+      {
+        error = AF_Err_Out_Of_Memory;
+        goto Exit;
+      }
+
+      new_max += ( new_max >> 2 ) + 4;
+      if ( new_max < old_max || new_max > big_max )
+        new_max = big_max;
+
+      if ( FT_RENEW_ARRAY( axis->segments, old_max, new_max ) )
+        goto Exit;
+
+      axis->max_segments = new_max;
+    }
+
+    segment = axis->segments + axis->num_segments++;
+
+  Exit:
+    *asegment = segment;
+    return error;
+  }
+
+
+  FT_LOCAL( FT_Error )
+  af_axis_hints_new_edge( AF_AxisHints  axis,
+                          FT_Int        fpos,
+                          AF_Direction  dir,
+                          FT_Memory     memory,
+                          AF_Edge      *aedge )
+  {
+    FT_Error  error = AF_Err_Ok;
+    AF_Edge   edge  = NULL;
+    AF_Edge   edges;
+
+
+    if ( axis->num_edges >= axis->max_edges )
+    {
+      FT_Int  old_max = axis->max_edges;
+      FT_Int  new_max = old_max;
+      FT_Int  big_max = FT_INT_MAX / sizeof ( *edge );
+
+
+      if ( old_max >= big_max )
+      {
+        error = AF_Err_Out_Of_Memory;
+        goto Exit;
+      }
+
+      new_max += ( new_max >> 2 ) + 4;
+      if ( new_max < old_max || new_max > big_max )
+        new_max = big_max;
+
+      if ( FT_RENEW_ARRAY( axis->edges, old_max, new_max ) )
+        goto Exit;
+
+      axis->max_edges = new_max;
+    }
+
+    edges = axis->edges;
+    edge  = edges + axis->num_edges;
+
+    while ( edge > edges )
+    {
+      if ( edge[-1].fpos < fpos )
+        break;
+
+      /* we want the edge with same position and minor direction */
+      /* to appear before those in the major one in the list     */
+      if ( edge[-1].fpos == fpos && dir == axis->major_dir )
+        break;
+
+      edge[0] = edge[-1];
+      edge--;
+    }
+
+    axis->num_edges++;
+
+    FT_ZERO( edge );
+    edge->fpos = (FT_Short)fpos;
+    edge->dir  = (FT_Char)dir;
+
+  Exit:
+    *aedge = edge;
+    return error;
+  }
+
+
+#ifdef AF_DEBUG
+
+#include <stdio.h>
+
+  static const char*
+  af_dir_str( AF_Direction  dir )
+  {
+    const char*  result;
+
+
+    switch ( dir )
+    {
+    case AF_DIR_UP:
+      result = "up";
+      break;
+    case AF_DIR_DOWN:
+      result = "down";
+      break;
+    case AF_DIR_LEFT:
+      result = "left";
+      break;
+    case AF_DIR_RIGHT:
+      result = "right";
+      break;
+    default:
+      result = "none";
+    }
+
+    return result;
+  }
+
+
+#define AF_INDEX_NUM( ptr, base )  ( (ptr) ? ( (ptr) - (base) ) : -1 )
+
+
+  void
+  af_glyph_hints_dump_points( AF_GlyphHints  hints )
+  {
+    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" );
+
+    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" );
+  }
+
+
+  static const char*
+  af_edge_flags_to_string( AF_Edge_Flags  flags )
+  {
+    static char  temp[32];
+    int          pos = 0;
+
+
+    if ( flags & AF_EDGE_ROUND )
+    {
+      memcpy( temp + pos, "round", 5 );
+      pos += 5;
+    }
+    if ( flags & AF_EDGE_SERIF )
+    {
+      if ( pos > 0 )
+        temp[pos++] = ' ';
+      memcpy( temp + pos, "serif", 5 );
+      pos += 5;
+    }
+    if ( pos == 0 )
+      return "normal";
+
+    temp[pos] = 0;
+
+    return temp;
+  }
+
+
+  /* A function to dump the array of linked segments. */
+  void
+  af_glyph_hints_dump_segments( AF_GlyphHints  hints )
+  {
+    FT_Int  dimension;
+
+
+    for ( dimension = 1; dimension >= 0; dimension-- )
+    {
+      AF_AxisHints  axis     = &hints->axis[dimension];
+      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" );
+
+      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" );
+    }
+  }
+
+
+  void
+  af_glyph_hints_dump_edges( AF_GlyphHints  hints )
+  {
+    FT_Int  dimension;
+
+
+    for ( dimension = 1; dimension >= 0; dimension-- )
+    {
+      AF_AxisHints  axis  = &hints->axis[dimension];
+      AF_Edge       edges = axis->edges;
+      AF_Edge       limit = edges + axis->num_edges;
+      AF_Edge       edge;
+
+
+      /*
+       *  note: AF_DIMENSION_HORZ corresponds to _vertical_ edges
+       *        since they have constant a 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" );
+
+      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" );
+    }
+  }
+
+#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 );
+  }
+
+
+  void
+  af_glyph_hints_dump_edges( AF_GlyphHints  hints )
+  {
+    FT_UNUSED( hints );
+  }
+
+#endif /* !AF_DEBUG */
+
+
+  /* compute the direction value of a given vector */
+  FT_LOCAL_DEF( AF_Direction )
+  af_direction_compute( FT_Pos  dx,
+                        FT_Pos  dy )
+  {
+    FT_Pos        ll, ss;  /* long and short arm lengths */
+    AF_Direction  dir;     /* candidate direction        */
+
+
+    if ( dy >= dx )
+    {
+      if ( dy >= -dx )
+      {
+        dir = AF_DIR_UP;
+        ll  = dy;
+        ss  = dx;
+      }
+      else
+      {
+        dir = AF_DIR_LEFT;
+        ll  = -dx;
+        ss  = dy;
+      }
+    }
+    else /* dy < dx */
+    {
+      if ( dy >= -dx )
+      {
+        dir = AF_DIR_RIGHT;
+        ll  = dx;
+        ss  = dy;
+      }
+      else
+      {
+        dir = AF_DIR_DOWN;
+        ll  = dy;
+        ss  = dx;
+      }
+    }
+
+    ss *= 14;
+    if ( FT_ABS( ll ) <= FT_ABS( ss ) )
+      dir = AF_DIR_NONE;
+
+    return dir;
+  }
+
+
+  /* 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 )
+  {
+    FT_ZERO( hints );
+    hints->memory = memory;
+  }
+
+
+  FT_LOCAL_DEF( void )
+  af_glyph_hints_done( AF_GlyphHints  hints )
+  {
+    if ( hints && hints->memory )
+    {
+      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];
+
+
+        axis->num_segments = 0;
+        axis->max_segments = 0;
+        FT_FREE( axis->segments );
+
+        axis->num_edges    = 0;
+        axis->max_edges    = 0;
+        FT_FREE( axis->edges );
+      }
+
+      FT_FREE( hints->contours );
+      hints->max_contours = 0;
+      hints->num_contours = 0;
+
+      FT_FREE( hints->points );
+      hints->num_points = 0;
+      hints->max_points = 0;
+
+      hints->memory = NULL;
+    }
+  }
+
+
+  FT_LOCAL_DEF( void )
+  af_glyph_hints_rescale( AF_GlyphHints     hints,
+                          AF_ScriptMetrics  metrics )
+  {
+    hints->metrics      = metrics;
+    hints->scaler_flags = metrics->scaler.flags;
+  }
+
+
+  FT_LOCAL_DEF( FT_Error )
+  af_glyph_hints_reload( AF_GlyphHints  hints,
+                         FT_Outline*    outline,
+                         FT_Bool        get_inflections )
+  {
+    FT_Error   error   = AF_Err_Ok;
+    AF_Point   points;
+    FT_UInt    old_max, new_max;
+    FT_Fixed   x_scale = hints->x_scale;
+    FT_Fixed   y_scale = hints->y_scale;
+    FT_Pos     x_delta = hints->x_delta;
+    FT_Pos     y_delta = hints->y_delta;
+    FT_Memory  memory  = hints->memory;
+
+
+    hints->num_points   = 0;
+    hints->num_contours = 0;
+
+    hints->axis[0].num_segments = 0;
+    hints->axis[0].num_edges    = 0;
+    hints->axis[1].num_segments = 0;
+    hints->axis[1].num_edges    = 0;
+
+    /* first of all, reallocate the contours array when necessary */
+    new_max = (FT_UInt)outline->n_contours;
+    old_max = hints->max_contours;
+    if ( new_max > old_max )
+    {
+      new_max = ( new_max + 3 ) & ~3;
+
+      if ( FT_RENEW_ARRAY( hints->contours, old_max, new_max ) )
+        goto Exit;
+
+      hints->max_contours = new_max;
+    }
+
+    /*
+     *  then reallocate the points arrays if necessary --
+     *  note that we reserve two additional point positions, used to
+     *  hint metrics appropriately
+     */
+    new_max = (FT_UInt)( outline->n_points + 2 );
+    old_max = hints->max_points;
+    if ( new_max > old_max )
+    {
+      new_max = ( new_max + 2 + 7 ) & ~7;
+
+      if ( FT_RENEW_ARRAY( hints->points, old_max, new_max ) )
+        goto Exit;
+
+      hints->max_points = new_max;
+    }
+
+    hints->num_points   = outline->n_points;
+    hints->num_contours = outline->n_contours;
+
+    /* We can't rely on the value of `FT_Outline.flags' to know the fill   */
+    /* direction used for a glyph, given that some fonts are broken (e.g., */
+    /* the Arphic ones).  We thus recompute it each time we need to.       */
+    /*                                                                     */
+    hints->axis[AF_DIMENSION_HORZ].major_dir = AF_DIR_UP;
+    hints->axis[AF_DIMENSION_VERT].major_dir = AF_DIR_LEFT;
+
+    if ( FT_Outline_Get_Orientation( outline ) == FT_ORIENTATION_POSTSCRIPT )
+    {
+      hints->axis[AF_DIMENSION_HORZ].major_dir = AF_DIR_DOWN;
+      hints->axis[AF_DIMENSION_VERT].major_dir = AF_DIR_RIGHT;
+    }
+
+    hints->x_scale = x_scale;
+    hints->y_scale = y_scale;
+    hints->x_delta = x_delta;
+    hints->y_delta = y_delta;
+
+    hints->xmin_delta = 0;
+    hints->xmax_delta = 0;
+
+    points = hints->points;
+    if ( hints->num_points == 0 )
+      goto Exit;
+
+    {
+      AF_Point  point;
+      AF_Point  point_limit = points + hints->num_points;
+
+
+      /* compute coordinates & Bezier flags, next and prev */
+      {
+        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;
+
+
+        for ( point = points; point < point_limit; point++, vec++, tag++ )
+        {
+          point->fx = (FT_Short)vec->x;
+          point->fy = (FT_Short)vec->y;
+          point->ox = point->x = FT_MulFix( vec->x, x_scale ) + x_delta;
+          point->oy = point->y = FT_MulFix( vec->y, y_scale ) + y_delta;
+
+          switch ( FT_CURVE_TAG( *tag ) )
+          {
+          case FT_CURVE_TAG_CONIC:
+            point->flags = AF_FLAG_CONIC;
+            break;
+          case FT_CURVE_TAG_CUBIC:
+            point->flags = AF_FLAG_CUBIC;
+            break;
+          default:
+            point->flags = 0;
+          }
+
+          point->prev = prev;
+          prev->next  = point;
+          prev        = point;
+
+          if ( point == end )
+          {
+            if ( ++contour_index < outline->n_contours )
+            {
+              first = point + 1;
+              end   = points + outline->contours[contour_index];
+              prev  = end;
+            }
+          }
+        }
+      }
+
+      /* set-up the contours array */
+      {
+        AF_Point*  contour       = hints->contours;
+        AF_Point*  contour_limit = contour + hints->num_contours;
+        short*     end           = outline->contours;
+        short      idx           = 0;
+
+
+        for ( ; contour < contour_limit; contour++, end++ )
+        {
+          contour[0] = points + idx;
+          idx        = (short)( end[0] + 1 );
+        }
+      }
+
+      /* 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;
+
+
+        for ( point = points; point < point_limit; point++ )
+        {
+          AF_Point  next;
+          FT_Pos    out_x, out_y;
+
+
+          if ( point == 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;
+          }
+
+          point->in_dir = (FT_Char)in_dir;
+
+          next  = point->next;
+          out_x = next->fx - point->fx;
+          out_y = next->fy - point->fy;
+
+          in_dir         = af_direction_compute( out_x, out_y );
+          point->out_dir = (FT_Char)in_dir;
+
+          if ( point->flags & ( AF_FLAG_CONIC | AF_FLAG_CUBIC ) )
+          {
+          Is_Weak_Point:
+            point->flags |= AF_FLAG_WEAK_INTERPOLATION;
+          }
+          else if ( point->out_dir == point->in_dir )
+          {
+            if ( point->out_dir != AF_DIR_NONE )
+              goto Is_Weak_Point;
+
+            if ( ft_corner_is_flat( in_x, in_y, out_x, out_y ) )
+              goto Is_Weak_Point;
+          }
+          else if ( point->in_dir == -point->out_dir )
+            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;
+  }
+
+
+  FT_LOCAL_DEF( void )
+  af_glyph_hints_save( AF_GlyphHints  hints,
+                       FT_Outline*    outline )
+  {
+    AF_Point    point = hints->points;
+    AF_Point    limit = point + hints->num_points;
+    FT_Vector*  vec   = outline->points;
+    char*       tag   = outline->tags;
+
+
+    for ( ; point < limit; point++, vec++, tag++ )
+    {
+      vec->x = point->x;
+      vec->y = point->y;
+
+      if ( point->flags & AF_FLAG_CONIC )
+        tag[0] = FT_CURVE_TAG_CONIC;
+      else if ( point->flags & AF_FLAG_CUBIC )
+        tag[0] = FT_CURVE_TAG_CUBIC;
+      else
+        tag[0] = FT_CURVE_TAG_ON;
+    }
+  }
+
+
+  /****************************************************************
+   *
+   *                     EDGE POINT GRID-FITTING
+   *
+   ****************************************************************/
+
+
+  FT_LOCAL_DEF( void )
+  af_glyph_hints_align_edge_points( AF_GlyphHints  hints,
+                                    AF_Dimension   dim )
+  {
+    AF_AxisHints  axis          = & hints->axis[dim];
+    AF_Segment    segments      = axis->segments;
+    AF_Segment    segment_limit = segments + axis->num_segments;
+    AF_Segment    seg;
+
+
+    if ( dim == AF_DIMENSION_HORZ )
+    {
+      for ( seg = segments; seg < segment_limit; seg++ )
+      {
+        AF_Edge   edge = seg->edge;
+        AF_Point  point, first, last;
+
+
+        if ( edge == NULL )
+          continue;
+
+        first = seg->first;
+        last  = seg->last;
+        point = first;
+        for (;;)
+        {
+          point->x      = edge->pos;
+          point->flags |= AF_FLAG_TOUCH_X;
+
+          if ( point == last )
+            break;
+
+          point = point->next;
+
+        }
+      }
+    }
+    else
+    {
+      for ( seg = segments; seg < segment_limit; seg++ )
+      {
+        AF_Edge   edge = seg->edge;
+        AF_Point  point, first, last;
+
+
+        if ( edge == NULL )
+          continue;
+
+        first = seg->first;
+        last  = seg->last;
+        point = first;
+        for (;;)
+        {
+          point->y      = edge->pos;
+          point->flags |= AF_FLAG_TOUCH_Y;
+
+          if ( point == last )
+            break;
+
+          point = point->next;
+        }
+      }
+    }
+  }
+
+
+  /****************************************************************
+   *
+   *                    STRONG POINT INTERPOLATION
+   *
+   ****************************************************************/
+
+
+  /* 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,
+                                      AF_Dimension   dim )
+  {
+    AF_Point      points      = hints->points;
+    AF_Point      point_limit = points + hints->num_points;
+    AF_AxisHints  axis        = &hints->axis[dim];
+    AF_Edge       edges       = axis->edges;
+    AF_Edge       edge_limit  = edges + axis->num_edges;
+    AF_Flags      touch_flag;
+
+
+    if ( dim == AF_DIMENSION_HORZ )
+      touch_flag = AF_FLAG_TOUCH_X;
+    else
+      touch_flag  = AF_FLAG_TOUCH_Y;
+
+    if ( edges < edge_limit )
+    {
+      AF_Point  point;
+      AF_Edge   edge;
+
+
+      for ( point = points; point < point_limit; point++ )
+      {
+        FT_Pos  u, ou, fu;  /* point position */
+        FT_Pos  delta;
+
+
+        if ( point->flags & touch_flag )
+          continue;
+
+        /* 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 )         )
+          continue;
+
+        if ( dim == AF_DIMENSION_VERT )
+        {
+          u  = point->fy;
+          ou = point->oy;
+        }
+        else
+        {
+          u  = point->fx;
+          ou = point->ox;
+        }
+
+        fu = u;
+
+        /* is the point before the first edge? */
+        edge  = edges;
+        delta = edge->fpos - u;
+        if ( delta >= 0 )
+        {
+          u = edge->pos - ( edge->opos - ou );
+          goto Store_Point;
+        }
+
+        /* is the point after the last edge? */
+        edge  = edge_limit - 1;
+        delta = u - edge->fpos;
+        if ( delta >= 0 )
+        {
+          u = edge->pos + ( ou - edge->opos );
+          goto Store_Point;
+        }
+
+        {
+          FT_UInt  min, max, mid;
+          FT_Pos   fpos;
+
+
+          /* find enclosing edges */
+          min = 0;
+          max = edge_limit - edges;
+
+#if 1
+          /* for small edge counts, a linear search is better */
+          if ( max <= 8 )
+          {
+            FT_UInt  nn;
+
+            for ( nn = 0; nn < max; nn++ )
+              if ( edges[nn].fpos >= u )
+                break;
+
+            if ( edges[nn].fpos == u )
+            {
+              u = edges[nn].pos;
+              goto Store_Point;
+            }
+            min = nn;
+          }
+          else
+#endif
+          while ( min < max )
+          {
+            mid  = ( max + min ) >> 1;
+            edge = edges + mid;
+            fpos = edge->fpos;
+
+            if ( u < fpos )
+              max = mid;
+            else if ( u > fpos )
+              min = mid + 1;
+            else
+            {
+              /* we are on the edge */
+              u = edge->pos;
+              goto Store_Point;
+            }
+          }
+
+          {
+            AF_Edge  before = edges + min - 1;
+            AF_Edge  after  = edges + min + 0;
+
+
+            /* assert( before && after && before != after ) */
+            if ( before->scale == 0 )
+              before->scale = FT_DivFix( after->pos - before->pos,
+                                         after->fpos - before->fpos );
+
+            u = before->pos + FT_MulFix( fu - before->fpos,
+                                         before->scale );
+          }
+        }
+
+      Store_Point:
+        /* save the point position */
+        if ( dim == AF_DIMENSION_HORZ )
+          point->x = u;
+        else
+          point->y = u;
+
+        point->flags |= touch_flag;
+      }
+    }
+  }
+
+
+  /****************************************************************
+   *
+   *                    WEAK POINT INTERPOLATION
+   *
+   ****************************************************************/
+
+
+  static void
+  af_iup_shift( AF_Point  p1,
+                AF_Point  p2,
+                AF_Point  ref )
+  {
+    AF_Point  p;
+    FT_Pos    delta = ref->u - ref->v;
+
+    if ( delta == 0 )
+      return;
+
+    for ( p = p1; p < ref; p++ )
+      p->u = p->v + delta;
+
+    for ( p = ref + 1; p <= p2; p++ )
+      p->u = p->v + delta;
+  }
+
+
+  static void
+  af_iup_interp( AF_Point  p1,
+                 AF_Point  p2,
+                 AF_Point  ref1,
+                 AF_Point  ref2 )
+  {
+    AF_Point  p;
+    FT_Pos    u;
+    FT_Pos    v1 = ref1->v;
+    FT_Pos    v2 = ref2->v;
+    FT_Pos    d1 = ref1->u - v1;
+    FT_Pos    d2 = ref2->u - v2;
+
+
+    if ( p1 > p2 )
+      return;
+
+    if ( v1 == v2 )
+    {
+      for ( p = p1; p <= p2; p++ )
+      {
+        u = p->v;
+
+        if ( u <= v1 )
+          u += d1;
+        else
+          u += d2;
+
+        p->u = u;
+      }
+      return;
+    }
+
+    if ( v1 < v2 )
+    {
+      for ( p = p1; p <= p2; p++ )
+      {
+        u = p->v;
+
+        if ( u <= v1 )
+          u += d1;
+        else if ( u >= v2 )
+          u += d2;
+        else
+          u = ref1->u + FT_MulDiv( u - v1, ref2->u - ref1->u, v2 - v1 );
+
+        p->u = u;
+      }
+    }
+    else
+    {
+      for ( p = p1; p <= p2; p++ )
+      {
+        u = p->v;
+
+        if ( u <= v2 )
+          u += d2;
+        else if ( u >= v1 )
+          u += d1;
+        else
+          u = ref1->u + FT_MulDiv( u - v1, ref2->u - ref1->u, v2 - v1 );
+
+        p->u = u;
+      }
+    }
+  }
+
+
+  FT_LOCAL_DEF( void )
+  af_glyph_hints_align_weak_points( AF_GlyphHints  hints,
+                                    AF_Dimension   dim )
+  {
+    AF_Point   points        = hints->points;
+    AF_Point   point_limit   = points + hints->num_points;
+    AF_Point*  contour       = hints->contours;
+    AF_Point*  contour_limit = contour + hints->num_contours;
+    AF_Flags   touch_flag;
+    AF_Point   point;
+    AF_Point   end_point;
+    AF_Point   first_point;
+
+
+    /* PASS 1: Move segment points to edge positions */
+
+    if ( dim == AF_DIMENSION_HORZ )
+    {
+      touch_flag = AF_FLAG_TOUCH_X;
+
+      for ( point = points; point < point_limit; point++ )
+      {
+        point->u = point->x;
+        point->v = point->ox;
+      }
+    }
+    else
+    {
+      touch_flag = AF_FLAG_TOUCH_Y;
+
+      for ( point = points; point < point_limit; point++ )
+      {
+        point->u = point->y;
+        point->v = point->oy;
+      }
+    }
+
+    point = points;
+
+    for ( ; contour < contour_limit; contour++ )
+    {
+      AF_Point  first_touched, last_touched;
+
+
+      point       = *contour;
+      end_point   = point->prev;
+      first_point = point;
+
+      /* find first touched point */
+      for (;;)
+      {
+        if ( point > end_point )  /* no touched point in contour */
+          goto NextContour;
+
+        if ( point->flags & touch_flag )
+          break;
+
+        point++;
+      }
+
+      first_touched = point;
+      last_touched  = point;
+
+      for (;;)
+      {
+        FT_ASSERT( point <= end_point &&
+                   ( point->flags & touch_flag ) != 0 );
+
+        /* skip any touched neighbhours */
+        while ( point < end_point && ( point[1].flags & touch_flag ) != 0 )
+          point++;
+
+        last_touched = point;
+
+        /* find the next touched point, if any */
+        point ++;
+        for (;;)
+        {
+          if ( point > end_point )
+            goto EndContour;
+
+          if ( ( point->flags & touch_flag ) != 0 )
+            break;
+
+          point++;
+        }
+
+        /* interpolate between last_touched and point */
+        af_iup_interp( last_touched + 1, point - 1,
+                       last_touched, point );
+      }
+
+    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 )
+          af_iup_interp( last_touched + 1, end_point,
+                         last_touched, first_touched );
+
+        if ( first_touched > points )
+          af_iup_interp( first_point, first_touched - 1,
+                         last_touched, first_touched );
+      }
+
+    NextContour:
+      ;
+    }
+
+    /* now save the interpolated values back to x/y */
+    if ( dim == AF_DIMENSION_HORZ )
+    {
+      for ( point = points; point < point_limit; point++ )
+        point->x = point->u;
+    }
+    else
+    {
+      for ( point = points; point < point_limit; point++ )
+        point->y = point->u;
+    }
+  }
+
+
+#ifdef AF_USE_WARPER
+
+  FT_LOCAL_DEF( void )
+  af_glyph_hints_scale_dim( AF_GlyphHints  hints,
+                            AF_Dimension   dim,
+                            FT_Fixed       scale,
+                            FT_Pos         delta )
+  {
+    AF_Point  points       = hints->points;
+    AF_Point  points_limit = points + hints->num_points;
+    AF_Point  point;
+
+
+    if ( dim == AF_DIMENSION_HORZ )
+    {
+      for ( point = points; point < points_limit; point++ )
+        point->x = FT_MulFix( point->fx, scale ) + delta;
+    }
+    else
+    {
+      for ( point = points; point < points_limit; point++ )
+        point->y = FT_MulFix( point->fy, scale ) + delta;
+    }
+  }
+
+#endif /* AF_USE_WARPER */
+
+/* END */
diff --git a/src/autofit/afhints.h b/src/autofit/afhints.h
new file mode 100644
index 0000000..6758268
--- /dev/null
+++ b/src/autofit/afhints.h
@@ -0,0 +1,333 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afhints.h                                                              */
+/*                                                                         */
+/*    Auto-fitter hinting routines (specification).                        */
+/*                                                                         */
+/*  Copyright 2003, 2004, 2005, 2006, 2007, 2008 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 __AFHINTS_H__
+#define __AFHINTS_H__
+
+#include "aftypes.h"
+
+#define xxAF_SORT_SEGMENTS
+
+FT_BEGIN_HEADER
+
+ /*
+  *  The definition of outline glyph hints.  These are shared by all
+  *  script analysis routines (until now).
+  */
+
+  typedef enum  AF_Dimension_
+  {
+    AF_DIMENSION_HORZ = 0,  /* x coordinates,                    */
+                            /* i.e., vertical segments & edges   */
+    AF_DIMENSION_VERT = 1,  /* y coordinates,                    */
+                            /* i.e., horizontal segments & edges */
+
+    AF_DIMENSION_MAX  /* do not remove */
+
+  } AF_Dimension;
+
+
+  /* hint directions -- the values are computed so that two vectors are */
+  /* in opposite directions iff `dir1 + dir2 == 0'                      */
+  typedef enum  AF_Direction_
+  {
+    AF_DIR_NONE  =  4,
+    AF_DIR_RIGHT =  1,
+    AF_DIR_LEFT  = -1,
+    AF_DIR_UP    =  2,
+    AF_DIR_DOWN  = -2
+
+  } AF_Direction;
+
+
+  /* point hint flags */
+  typedef enum  AF_Flags_
+  {
+    AF_FLAG_NONE = 0,
+
+    /* point type flags */
+    AF_FLAG_CONIC   = 1 << 0,
+    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,
+
+    /* 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_Flags;
+
+
+  /* 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_Flags;
+
+
+  typedef struct AF_PointRec_*    AF_Point;
+  typedef struct AF_SegmentRec_*  AF_Segment;
+  typedef struct AF_EdgeRec_*     AF_Edge;
+
+
+  typedef struct  AF_PointRec_
+  {
+    FT_UShort  flags;    /* point flags used by hinter   */
+    FT_Char    in_dir;   /* direction of inwards vector  */
+    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_Pos     x, y;     /* current position                            */
+    FT_Pos     u, v;     /* current (x,y) or (y,x) depending on context */
+
+    AF_Point   next;     /* next point in contour     */
+    AF_Point   prev;     /* previous point in contour */
+
+  } AF_PointRec;
+
+
+  typedef struct  AF_SegmentRec_
+  {
+    FT_Byte     flags;       /* edge/segment flags for this segment */
+    FT_Char     dir;         /* segment direction                   */
+    FT_Short    pos;         /* position of segment                 */
+    FT_Short    min_coord;   /* minimum coordinate of segment       */
+    FT_Short    max_coord;   /* maximum coordinate of segment       */
+    FT_Short    height;      /* the hinted segment height           */
+
+    AF_Edge     edge;        /* the segment's parent edge           */
+    AF_Segment  edge_next;   /* link to next segment in parent edge */
+
+    AF_Segment  link;        /* (stem) link segment        */
+    AF_Segment  serif;       /* primary segment for serifs */
+    FT_Pos      num_linked;  /* number of linked segments  */
+    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_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_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;
+
+    FT_Int      score;
+
+    AF_Segment  first;
+    AF_Segment  last;
+
+  } AF_EdgeRec;
+
+
+  typedef struct  AF_AxisHintsRec_
+  {
+    FT_Int        num_segments;
+    FT_Int        max_segments;
+    AF_Segment    segments;
+#ifdef AF_SORT_SEGMENTS
+    FT_Int        mid_segments;
+#endif
+
+    FT_Int        num_edges;
+    FT_Int        max_edges;
+    AF_Edge       edges;
+
+    AF_Direction  major_dir;
+
+  } AF_AxisHintsRec, *AF_AxisHints;
+
+
+  typedef struct  AF_GlyphHintsRec_
+  {
+    FT_Memory         memory;
+
+    FT_Fixed          x_scale;
+    FT_Pos            x_delta;
+
+    FT_Fixed          y_scale;
+    FT_Pos            y_delta;
+
+    FT_Pos            edge_distance_threshold;
+
+    FT_Int            max_points;
+    FT_Int            num_points;
+    AF_Point          points;
+
+    FT_Int            max_contours;
+    FT_Int            num_contours;
+    AF_Point*         contours;
+
+    AF_AxisHintsRec   axis[AF_DIMENSION_MAX];
+
+    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;
+    
+  } AF_GlyphHintsRec;
+
+
+#define AF_HINTS_TEST_SCALER( h, f )  ( (h)->scaler_flags & (f) )
+#define AF_HINTS_TEST_OTHER( h, f )   ( (h)->other_flags  & (f) )
+
+
+#ifdef AF_DEBUG
+
+#define AF_HINTS_DO_HORIZONTAL( h )                                     \
+          ( !_af_debug_disable_horz_hints                            && \
+            !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_HORIZONTAL ) )
+
+#define AF_HINTS_DO_VERTICAL( h )                                     \
+          ( !_af_debug_disable_vert_hints                          && \
+            !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_VERTICAL ) )
+
+#define AF_HINTS_DO_ADVANCE( h )                                \
+          !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_ADVANCE )
+
+#define AF_HINTS_DO_BLUES( h )  ( !_af_debug_disable_blue_hints )
+
+#else /* !AF_DEBUG */
+
+#define AF_HINTS_DO_HORIZONTAL( h )                                \
+          !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_HORIZONTAL )
+
+#define AF_HINTS_DO_VERTICAL( h )                                \
+          !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_VERTICAL )
+
+#define AF_HINTS_DO_ADVANCE( h )                                \
+          !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_ADVANCE )
+
+#define AF_HINTS_DO_BLUES( h )  1
+
+#endif /* !AF_DEBUG */
+
+
+  FT_LOCAL( AF_Direction )
+  af_direction_compute( FT_Pos  dx,
+                        FT_Pos  dy );
+
+
+  FT_LOCAL( FT_Error )
+  af_axis_hints_new_segment( AF_AxisHints  axis,
+                             FT_Memory     memory,
+                             AF_Segment   *asegment );
+
+  FT_LOCAL( FT_Error)
+  af_axis_hints_new_edge( AF_AxisHints  axis,
+                          FT_Int        fpos,
+                          AF_Direction  dir,
+                          FT_Memory     memory,
+                          AF_Edge      *edge );
+
+  FT_LOCAL( void )
+  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 );
+
+  FT_LOCAL( FT_Error )
+  af_glyph_hints_reload( AF_GlyphHints  hints,
+                         FT_Outline*    outline,
+                         FT_Bool        get_inflections );
+
+  FT_LOCAL( void )
+  af_glyph_hints_save( AF_GlyphHints  hints,
+                       FT_Outline*    outline );
+
+  FT_LOCAL( void )
+  af_glyph_hints_align_edge_points( AF_GlyphHints  hints,
+                                    AF_Dimension   dim );
+
+  FT_LOCAL( void )
+  af_glyph_hints_align_strong_points( AF_GlyphHints  hints,
+                                      AF_Dimension   dim );
+
+  FT_LOCAL( void )
+  af_glyph_hints_align_weak_points( AF_GlyphHints  hints,
+                                    AF_Dimension   dim );
+
+#ifdef AF_USE_WARPER
+  FT_LOCAL( void )
+  af_glyph_hints_scale_dim( AF_GlyphHints  hints,
+                            AF_Dimension   dim,
+                            FT_Fixed       scale,
+                            FT_Pos         delta );
+#endif
+
+  FT_LOCAL( void )
+  af_glyph_hints_done( AF_GlyphHints  hints );
+
+/* */
+
+#define AF_SEGMENT_LEN( seg )          ( (seg)->max_coord - (seg)->min_coord )
+
+#define AF_SEGMENT_DIST( seg1, seg2 )  ( ( (seg1)->pos > (seg2)->pos )   \
+                                           ? (seg1)->pos - (seg2)->pos   \
+                                           : (seg2)->pos - (seg1)->pos )
+
+
+FT_END_HEADER
+
+#endif /* __AFHINTS_H__ */
+
+
+/* END */
diff --git a/src/autofit/afindic.c b/src/autofit/afindic.c
new file mode 100644
index 0000000..3d27f52
--- /dev/null
+++ b/src/autofit/afindic.c
@@ -0,0 +1,134 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afindic.c                                                              */
+/*                                                                         */
+/*    Auto-fitter hinting routines for Indic scripts (body).               */
+/*                                                                         */
+/*  Copyright 2007 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,       */
+/*  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"
+#include "aflatin.h"
+
+
+#ifdef AF_CONFIG_OPTION_INDIC
+
+#include "afindic.h"
+#include "aferrors.h"
+#include "afcjk.h"
+
+
+#ifdef AF_USE_WARPER
+#include "afwarp.h"
+#endif
+
+
+  static FT_Error
+  af_indic_metrics_init( AF_LatinMetrics  metrics,
+                         FT_Face          face )
+  {
+    /* use CJK routines */
+    return af_cjk_metrics_init( metrics, face );
+  }
+
+
+  static void
+  af_indic_metrics_scale( AF_LatinMetrics  metrics,
+                          AF_Scaler        scaler )
+  {
+    /* use CJK routines */
+    af_cjk_metrics_scale( metrics, scaler );
+  }
+
+
+  static FT_Error
+  af_indic_hints_init( AF_GlyphHints    hints,
+                       AF_LatinMetrics  metrics )
+  {
+    /* use CJK routines */
+    return af_cjk_hints_init( hints, metrics );
+  }
+
+
+  static FT_Error
+  af_indic_hints_apply( AF_GlyphHints    hints,
+                        FT_Outline*      outline,
+                        AF_LatinMetrics  metrics)
+  {
+    /* use CJK routines */
+    return af_cjk_hints_apply( hints, outline, metrics );
+  }
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                I N D I C   S C R I P T   C L A S S            *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+
+  static const AF_Script_UniRangeRec  af_indic_uniranges[] =
+  {
+#if 0
+    { 0x0100,  0xFFFF },  /* why this? */
+#endif
+    { 0x0900, 0x0DFF},    /* Indic Range */
+    { 0,       0 }
+  };
+
+
+  FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec
+  af_indic_script_class =
+  {
+    AF_SCRIPT_INDIC,
+    af_indic_uniranges,
+
+    sizeof( AF_LatinMetricsRec ),
+
+    (AF_Script_InitMetricsFunc) af_indic_metrics_init,
+    (AF_Script_ScaleMetricsFunc)af_indic_metrics_scale,
+    (AF_Script_DoneMetricsFunc) NULL,
+
+    (AF_Script_InitHintsFunc)   af_indic_hints_init,
+    (AF_Script_ApplyHintsFunc)  af_indic_hints_apply
+  };
+
+#else /* !AF_CONFIG_OPTION_INDIC */
+
+  static const AF_Script_UniRangeRec  af_indic_uniranges[] =
+  {
+    { 0, 0 }
+  };
+
+
+  FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec
+  af_indic_script_class =
+  {
+    AF_SCRIPT_INDIC,
+    af_indic_uniranges,
+
+    sizeof( AF_LatinMetricsRec ),
+
+    (AF_Script_InitMetricsFunc) NULL,
+    (AF_Script_ScaleMetricsFunc)NULL,
+    (AF_Script_DoneMetricsFunc) NULL,
+
+    (AF_Script_InitHintsFunc)   NULL,
+    (AF_Script_ApplyHintsFunc)  NULL
+  };
+
+#endif /* !AF_CONFIG_OPTION_INDIC */
+
+
+/* END */
diff --git a/src/autofit/afindic.h b/src/autofit/afindic.h
new file mode 100644
index 0000000..b242b26
--- /dev/null
+++ b/src/autofit/afindic.h
@@ -0,0 +1,41 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afindic.h                                                              */
+/*                                                                         */
+/*    Auto-fitter hinting routines for Indic scripts (specification).      */
+/*                                                                         */
+/*  Copyright 2007 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,       */
+/*  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 __AFINDIC_H__
+#define __AFINDIC_H__
+
+#include "afhints.h"
+
+
+FT_BEGIN_HEADER
+
+
+  /* the Indic-specific script class */
+
+  FT_CALLBACK_TABLE const AF_ScriptClassRec
+  af_indic_script_class;
+
+
+/* */
+
+FT_END_HEADER
+
+#endif /* __AFINDIC_H__ */
+
+
+/* END */
diff --git a/src/autofit/aflatin.c b/src/autofit/aflatin.c
new file mode 100644
index 0000000..b70da06
--- /dev/null
+++ b/src/autofit/aflatin.c
@@ -0,0 +1,2168 @@
+/***************************************************************************/
+/*                                                                         */
+/*  aflatin.c                                                              */
+/*                                                                         */
+/*    Auto-fitter hinting routines for latin script (body).                */
+/*                                                                         */
+/*  Copyright 2003, 2004, 2005, 2006, 2007 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 "aflatin.h"
+#include "aferrors.h"
+
+
+#ifdef AF_USE_WARPER
+#include "afwarp.h"
+#endif
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****            L A T I N   G L O B A L   M E T R I C S            *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  FT_LOCAL_DEF( void )
+  af_latin_metrics_init_widths( AF_LatinMetrics  metrics,
+                                FT_Face          face,
+                                FT_ULong         charcode )
+  {
+    /* scan the array of segments in each direction */
+    AF_GlyphHintsRec  hints[1];
+
+
+    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;
+
+
+      glyph_index = FT_Get_Char_Index( face, charcode );
+      if ( glyph_index == 0 )
+        goto Exit;
+
+      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     = scaler->y_scale = 0x10000L;
+      scaler->x_delta     = 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 );
+
+      error = af_glyph_hints_reload( hints, &face->glyph->outline, 0 );
+      if ( error )
+        goto Exit;
+
+      for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
+      {
+        AF_LatinAxis  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,
+                                      (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_LATIN_MAX_WIDTHS )
+              axis->widths[ num_widths++ ].org = dist;
+          }
+        }
+
+        af_sort_widths( num_widths, axis->widths );
+        axis->width_count = num_widths;
+      }
+
+  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 );
+
+        /* 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 );
+  }
+
+
+
+#define AF_LATIN_MAX_TEST_CHARACTERS  12
+
+
+  static const char* const  af_latin_blue_chars[AF_LATIN_MAX_BLUES] =
+  {
+    "THEZOCQS",
+    "HEZLOCUS",
+    "fijkdbh",
+    "xzroesc",
+    "xzroesc",
+    "pqgjy"
+  };
+
+
+  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_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;
+
+
+    /* 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" ));
+
+    for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ )
+    {
+      const char*  p     = af_latin_blue_chars[bb];
+      const char*  limit = p + AF_LATIN_MAX_TEST_CHARACTERS;
+      FT_Pos*      blue_ref;
+      FT_Pos*      blue_shoot;
+
+
+      AF_LOG(( "blue %3d: ", bb ));
+
+      num_flats  = 0;
+      num_rounds = 0;
+
+      for ( ; p < limit && *p; p++ )
+      {
+        FT_UInt     glyph_index;
+        FT_Int      best_point, best_y, best_first, best_last;
+        FT_Vector*  points;
+        FT_Bool     round = 0;
+
+
+        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 )
+          continue;
+
+        error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
+        if ( error || glyph->outline.n_points <= 0 )
+          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 */
+
+        {
+          FT_Int  nn;
+          FT_Int  first = 0;
+          FT_Int  last  = -1;
+
+
+          for ( nn = 0; nn < glyph->outline.n_contours; first = last+1, nn++ )
+          {
+            FT_Int  old_best_point = best_point;
+            FT_Int  pp;
+
+
+            last = glyph->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_LATIN_IS_TOP_BLUE( bb ) )
+            {
+              for ( pp = first; pp <= last; pp++ )
+                if ( best_point < 0 || points[pp].y > best_y )
+                {
+                  best_point = pp;
+                  best_y     = points[pp].y;
+                }
+            }
+            else
+            {
+              for ( pp = first; pp <= last; pp++ )
+                if ( best_point < 0 || points[pp].y < best_y )
+                {
+                  best_point = pp;
+                  best_y     = points[pp].y;
+                }
+            }
+
+            if ( best_point != old_best_point )
+            {
+              best_first = first;
+              best_last  = last;
+            }
+          }
+          AF_LOG(( "%5d", 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              */
+        if ( best_point >= 0 )
+        {
+          FT_Int  prev, next;
+          FT_Pos  dist;
+
+
+          /* now look for the previous and next points that are not on the */
+          /* same Y coordinate.  Threshold the `closeness'...              */
+          prev = best_point;
+          next = prev;
+
+          do
+          {
+            if ( prev > best_first )
+              prev--;
+            else
+              prev = best_last;
+
+            dist = points[prev].y - best_y;
+            if ( dist < -5 || dist > 5 )
+              break;
+
+          } while ( prev != best_point );
+
+          do
+          {
+            if ( next < best_last )
+              next++;
+            else
+              next = best_first;
+
+            dist = points[next].y - best_y;
+            if ( dist < -5 || dist > 5 )
+              break;
+
+          } 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 );
+
+          AF_LOG(( "%c ", round ? 'r' : 'f' ));
+        }
+
+        if ( round )
+          rounds[num_rounds++] = best_y;
+        else
+          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" ));
+        continue;
+      }
+
+      /* we have computed the contents of the `rounds' 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_rounds, rounds );
+      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 = rounds[num_rounds / 2];
+      }
+      else if ( num_rounds == 0 )
+      {
+        *blue_ref   =
+        *blue_shoot = flats[num_flats / 2];
+      }
+      else
+      {
+        *blue_ref   = flats[num_flats / 2];
+        *blue_shoot = rounds[num_rounds / 2];
+      }
+
+      /* there are sometimes problems: if the overshoot position of top     */
+      /* zones is under its reference position, or the opposite for bottom  */
+      /* zones.  We must thus check everything there and correct the errors */
+      if ( *blue_shoot != *blue_ref )
+      {
+        FT_Pos   ref      = *blue_ref;
+        FT_Pos   shoot    = *blue_shoot;
+        FT_Bool  over_ref = FT_BOOL( shoot > ref );
+
+
+        if ( AF_LATIN_IS_TOP_BLUE( bb ) ^ over_ref )
+          *blue_shoot = *blue_ref = ( shoot + ref ) / 2;
+      }
+
+      blue->flags = 0;
+      if ( AF_LATIN_IS_TOP_BLUE( bb ) )
+        blue->flags |= AF_LATIN_BLUE_TOP;
+
+      /*
+       * The following flags 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 )
+        blue->flags |= AF_LATIN_BLUE_ADJUSTMENT;
+
+      AF_LOG(( "-- ref = %ld, shoot = %ld\n", *blue_ref, *blue_shoot ));
+    }
+
+    return;
+  }
+
+
+  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 )
+    {
+      /* For now, compute the standard width and height from the `o'. */
+      af_latin_metrics_init_widths( metrics, face, 'o' );
+      af_latin_metrics_init_blues( metrics, face );
+    }
+
+    FT_Set_Charmap( face, oldmap );
+    return AF_Err_Ok;
+  }
+
+
+  static void
+  af_latin_metrics_scale_dim( AF_LatinMetrics  metrics,
+                              AF_Scaler        scaler,
+                              AF_Dimension     dim )
+  {
+    FT_Fixed      scale;
+    FT_Pos        delta;
+    AF_LatinAxis  axis;
+    FT_UInt       nn;
+
+
+    if ( dim == AF_DIMENSION_HORZ )
+    {
+      scale = scaler->x_scale;
+      delta = scaler->x_delta;
+    }
+    else
+    {
+      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;
+
+    /*
+     * correct X and Y scale to optimize the alignment of the top of small
+     * letters to the pixel grid
+     */
+    {
+      AF_LatinAxis  Axis = &metrics->axis[AF_DIMENSION_VERT];
+      AF_LatinBlue  blue = NULL;
+
+
+      for ( nn = 0; nn < Axis->blue_count; nn++ )
+      {
+        if ( Axis->blues[nn].flags & AF_LATIN_BLUE_ADJUSTMENT )
+        {
+          blue = &Axis->blues[nn];
+          break;
+        }
+      }
+
+      if ( blue )
+      {
+        FT_Pos  scaled = FT_MulFix( blue->shoot.org, scaler->y_scale );
+        FT_Pos  fitted = ( scaled + 40 ) & ~63;
+
+
+        if ( scaled != fitted )
+        {
+#if 0
+          if ( dim == AF_DIMENSION_HORZ )
+          {
+            if ( fitted < scaled )
+              scale -= scale / 50;  /* scale *= 0.98 */
+          }
+          else
+#endif
+          if ( dim == AF_DIMENSION_VERT )
+          {
+            scale = FT_MulDiv( scale, fitted, scaled );
+          }
+        }
+      }
+    }
+
+    axis->scale = scale;
+    axis->delta = delta;
+
+    if ( dim == AF_DIMENSION_HORZ )
+    {
+      metrics->root.scaler.x_scale = scale;
+      metrics->root.scaler.x_delta = delta;
+    }
+    else
+    {
+      metrics->root.scaler.y_scale = scale;
+      metrics->root.scaler.y_delta = delta;
+    }
+
+    /* scale the standard widths */
+    for ( nn = 0; nn < axis->width_count; nn++ )
+    {
+      AF_Width  width = axis->widths + nn;
+
+
+      width->cur = FT_MulFix( width->org, scale );
+      width->fit = width->cur;
+    }
+
+    /* an extra-light axis corresponds to a standard width that is */
+    /* smaller than 0.75 pixels                                    */
+    axis->extra_light =
+      (FT_Bool)( FT_MulFix( axis->standard_width, scale ) < 32 + 8 );
+
+    if ( dim == AF_DIMENSION_VERT )
+    {
+      /* scale the blue zones */
+      for ( nn = 0; nn < axis->blue_count; nn++ )
+      {
+        AF_LatinBlue  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_LATIN_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;
+
+
+          delta1 = blue->shoot.org - blue->ref.org;
+          delta2 = delta1;
+          if ( delta1 < 0 )
+            delta2 = -delta2;
+
+          delta2 = FT_MulFix( delta2, scale );
+
+          if ( delta2 < 32 )
+            delta2 = 0;
+          else if ( delta2 < 64 )
+            delta2 = 32 + ( ( ( delta2 - 32 ) + 16 ) & ~31 );
+          else
+            delta2 = FT_PIX_ROUND( delta2 );
+
+          if ( delta1 < 0 )
+            delta2 = -delta2;
+
+          blue->ref.fit   = FT_PIX_ROUND( blue->ref.cur );
+          blue->shoot.fit = blue->ref.fit + delta2;
+
+          blue->flags |= AF_LATIN_BLUE_ACTIVE;
+        }
+      }
+    }
+  }
+
+
+  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;
+
+    af_latin_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ );
+    af_latin_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT );
+  }
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****           L A T I N   G L Y P H   A N A L Y S I S             *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  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;
+
+
+    FT_ZERO( &seg0 );
+    seg0.score = 32000;
+    seg0.flags = AF_EDGE_NORMAL;
+
+    major_dir   = (AF_Direction)FT_ABS( axis->major_dir );
+    segment_dir = major_dir;
+
+    axis->num_segments = 0;
+
+    /* set up (u,v) in each point */
+    if ( dim == AF_DIMENSION_HORZ )
+    {
+      AF_Point  point = hints->points;
+      AF_Point  limit = point + hints->num_points;
+
+
+      for ( ; point < limit; point++ )
+      {
+        point->u = point->fx;
+        point->v = point->fy;
+      }
+    }
+    else
+    {
+      AF_Point  point = hints->points;
+      AF_Point  limit = point + hints->num_points;
+
+
+      for ( ; point < limit; point++ )
+      {
+        point->u = point->fy;
+        point->v = point->fx;
+      }
+    }
+
+    /* do each contour separately */
+    for ( ; contour < contour_limit; contour++ )
+    {
+      AF_Point  point   =  contour[0];
+      AF_Point  last    =  point->prev;
+      int       on_edge =  0;
+      FT_Pos    min_pos =  32000;  /* minimum segment pos != min_coord */
+      FT_Pos    max_pos = -32000;  /* maximum segment pos != max_coord */
+      FT_Bool   passed;
+
+
+      if ( point == last )  /* skip singletons -- just in case */
+        continue;
+
+      if ( FT_ABS( last->out_dir )  == major_dir &&
+           FT_ABS( point->out_dir ) == major_dir )
+      {
+        /* we are already on an edge, try to locate its start */
+        last = point;
+
+        for (;;)
+        {
+          point = point->prev;
+          if ( FT_ABS( point->out_dir ) != major_dir )
+          {
+            point = point->next;
+            break;
+          }
+          if ( point == last )
+            break;
+        }
+      }
+
+      last   = point;
+      passed = 0;
+
+      for (;;)
+      {
+        FT_Pos  u, v;
+
+
+        if ( on_edge )
+        {
+          u = point->u;
+          if ( u < min_pos )
+            min_pos = u;
+          if ( u > max_pos )
+            max_pos = u;
+
+          if ( point->out_dir != segment_dir || point == last )
+          {
+            /* we are just leaving an edge; record a new segment! */
+            segment->last = point;
+            segment->pos  = (FT_Short)( ( min_pos + max_pos ) >> 1 );
+
+            /* a segment is round if either its first or last point */
+            /* is a control point                                   */
+            if ( ( segment->first->flags | point->flags ) &
+                   AF_FLAG_CONTROL                        )
+              segment->flags |= AF_EDGE_ROUND;
+
+            /* compute segment size */
+            min_pos = max_pos = point->v;
+
+            v = segment->first->v;
+            if ( v < min_pos )
+              min_pos = v;
+            if ( v > max_pos )
+              max_pos = v;
+
+            segment->min_coord = (FT_Short)min_pos;
+            segment->max_coord = (FT_Short)max_pos;
+            segment->height    = (FT_Short)( segment->max_coord -
+                                             segment->min_coord );
+
+            on_edge = 0;
+            segment = NULL;
+            /* fallthrough */
+          }
+        }
+
+        /* now exit if we are at the start/end point */
+        if ( point == last )
+        {
+          if ( passed )
+            break;
+          passed = 1;
+        }
+
+        if ( !on_edge && FT_ABS( point->out_dir ) == major_dir )
+        {
+          /* 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;
+          segment->dir      = (FT_Char)segment_dir;
+          min_pos = max_pos = point->u;
+          segment->first    = point;
+          segment->last     = point;
+          segment->contour  = contour;
+          on_edge           = 1;
+        }
+
+        point = point->next;
+      }
+
+    } /* contours */
+
+
+    /* now slightly increase the height of segments when 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;
+
+
+      for ( segment = segments; segment < segments_end; segment++ )
+      {
+        AF_Point  first   = segment->first;
+        AF_Point  last    = segment->last;
+        FT_Pos    first_v = first->v;
+        FT_Pos    last_v  = last->v;
+
+
+        if ( first == last )
+          continue;
+
+        if ( first_v < last_v )
+        {
+          AF_Point  p;
+
+
+          p = first->prev;
+          if ( p->v < first_v )
+            segment->height = (FT_Short)( segment->height +
+                                          ( ( first_v - p->v ) >> 1 ) );
+
+          p = last->next;
+          if ( p->v > last_v )
+            segment->height = (FT_Short)( segment->height +
+                                          ( ( p->v - last_v ) >> 1 ) );
+        }
+        else
+        {
+          AF_Point  p;
+
+
+          p = first->prev;
+          if ( p->v > first_v )
+            segment->height = (FT_Short)( segment->height +
+                                          ( ( p->v - first_v ) >> 1 ) );
+
+          p = last->next;
+          if ( p->v < last_v )
+            segment->height = (FT_Short)( segment->height +
+                                          ( ( last_v - p->v ) >> 1 ) );
+        }
+      }
+    }
+
+  Exit:
+    return error;
+  }
+
+
+  FT_LOCAL_DEF( void )
+  af_latin_hints_link_segments( AF_GlyphHints  hints,
+                                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;
+    AF_Segment    seg1, seg2;
+
+
+    len_threshold = AF_LATIN_CONSTANT( hints->metrics, 8 );
+    if ( len_threshold == 0 )
+      len_threshold = 1;
+
+    len_score = AF_LATIN_CONSTANT( hints->metrics, 6000 );
+
+    /* 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 )
+        continue;
+
+      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;
+          FT_Pos  dist = pos2 - pos1;
+
+
+          if ( dist < 0 )
+            dist = -dist;
+
+          {
+            FT_Pos  min = seg1->min_coord;
+            FT_Pos  max = seg1->max_coord;
+            FT_Pos  len, score;
+
+
+            if ( min < seg2->min_coord )
+              min = seg2->min_coord;
+
+            if ( max > seg2->max_coord )
+              max = seg2->max_coord;
+
+            len = max - min;
+            if ( len >= len_threshold )
+            {
+              score = dist + len_score / len;
+
+              if ( score < seg1->score )
+              {
+                seg1->score = score;
+                seg1->link  = seg2;
+              }
+
+              if ( score < seg2->score )
+              {
+                seg2->score = score;
+                seg2->link  = seg1;
+              }
+            }
+          }
+        }
+    }
+
+    /* now, compute the `serif' segments */
+    for ( seg1 = segments; seg1 < segment_limit; seg1++ )
+    {
+      seg2 = seg1->link;
+
+      if ( seg2 )
+      {
+        if ( seg2->link != seg1 )
+        {
+          seg1->link  = 0;
+          seg1->serif = seg2->link;
+        }
+      }
+    }
+  }
+
+
+  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_Memory     memory = hints->memory;
+    AF_LatinAxis  laxis  = &((AF_LatinMetrics)hints->metrics)->axis[dim];
+
+    AF_Segment    segments      = axis->segments;
+    AF_Segment    segment_limit = segments + axis->num_segments;
+    AF_Segment    seg;
+
+    AF_Direction  up_dir;
+    FT_Fixed      scale;
+    FT_Pos        edge_distance_threshold;
+    FT_Pos        segment_length_threshold;
+
+
+    axis->num_edges = 0;
+
+    scale = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale
+                                         : hints->y_scale;
+
+    up_dir = ( dim == AF_DIMENSION_HORZ ) ? AF_DIR_UP
+                                          : AF_DIR_RIGHT;
+
+    /*
+     *  We ignore all segments that are less than 1 pixels in length,
+     *  to avoid many problems with serif fonts.  We compute the
+     *  corresponding threshold in font units.
+     */
+    if ( dim == AF_DIMENSION_HORZ )
+        segment_length_threshold = FT_DivFix( 64, hints->y_scale );
+    else
+        segment_length_threshold = 0;
+
+    /*********************************************************************/
+    /*                                                                   */
+    /* 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.    */
+    /*                                                                   */
+    /* 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    */
+    /* edge's properties.                                                */
+    /*                                                                   */
+    /* Note that the edges table is sorted along the segment/edge        */
+    /* position.                                                         */
+    /*                                                                   */
+    /*********************************************************************/
+
+    edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold,
+                                         scale );
+    if ( edge_distance_threshold > 64 / 4 )
+      edge_distance_threshold = 64 / 4;
+
+    edge_distance_threshold = FT_DivFix( edge_distance_threshold,
+                                         scale );
+
+    for ( seg = segments; seg < segment_limit; seg++ )
+    {
+      AF_Edge  found = 0;
+      FT_Int   ee;
+
+
+      if ( seg->height < segment_length_threshold )
+        continue;
+
+      /* A special case for serif edges: If they are smaller than */
+      /* 1.5 pixels we ignore them.                               */
+      if ( seg->serif                                     &&
+           2 * seg->height < 3 * segment_length_threshold )
+        continue;
+
+      /* look for an edge corresponding to the segment */
+      for ( ee = 0; ee < axis->num_edges; ee++ )
+      {
+        AF_Edge  edge = axis->edges + ee;
+        FT_Pos   dist;
+
+
+        dist = seg->pos - edge->fpos;
+        if ( dist < 0 )
+          dist = -dist;
+
+        if ( dist < edge_distance_threshold && edge->dir == seg->dir )
+        {
+          found = edge;
+          break;
+        }
+      }
+
+      if ( !found )
+      {
+        AF_Edge  edge;
+
+
+        /* insert a new edge in the list and */
+        /* sort according to the position    */
+        error = af_axis_hints_new_edge( axis, seg->pos,
+                                        (AF_Direction)seg->dir,
+                                        memory, &edge );
+        if ( error )
+          goto Exit;
+
+        /* add the segment to the new edge's list */
+        FT_ZERO( edge );
+
+        edge->first    = seg;
+        edge->last     = seg;
+        edge->fpos     = seg->pos;
+        edge->dir      = seg->dir;
+        edge->opos     = edge->pos = FT_MulFix( seg->pos, scale );
+        seg->edge_next = seg;
+      }
+      else
+      {
+        /* if an edge was found, simply add the segment to the edge's */
+        /* list                                                       */
+        seg->edge_next         = found->first;
+        found->last->edge_next = seg;
+        found->last            = seg;
+      }
+    }
+
+
+    /*********************************************************************/
+    /*                                                                   */
+    /* 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                                                  */
+    /*                                                                   */
+    /*********************************************************************/
+
+    /* 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;
+      AF_Edge  edge;
+
+
+      for ( edge = edges; edge < edge_limit; edge++ )
+      {
+        seg = edge->first;
+        if ( seg )
+          do
+          {
+            seg->edge = edge;
+            seg       = seg->edge_next;
+
+          } while ( seg != edge->first );
+      }
+
+      /* 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? */
+        FT_Pos  ups         = 0;  /* number of upwards segments         */
+        FT_Pos  downs       = 0;  /* number of downwards segments       */
+
+
+        seg = edge->first;
+
+        do
+        {
+          FT_Bool  is_serif;
+
+
+          /* check for roundness of segment */
+          if ( seg->flags & AF_EDGE_ROUND )
+            is_round++;
+          else
+            is_straight++;
+
+          /* check for segment direction */
+          if ( seg->dir == up_dir )
+            ups   += seg->max_coord-seg->min_coord;
+          else
+            downs += seg->max_coord-seg->min_coord;
+
+          /* check for links -- if seg->serif is set, then seg->link must */
+          /* be ignored                                                   */
+          is_serif = (FT_Bool)( seg->serif               &&
+                                seg->serif->edge         &&
+                                seg->serif->edge != edge );
+
+          if ( ( seg->link && seg->link->edge != NULL ) || is_serif )
+          {
+            AF_Edge     edge2;
+            AF_Segment  seg2;
+
+
+            edge2 = edge->link;
+            seg2  = seg->link;
+
+            if ( is_serif )
+            {
+              seg2  = seg->serif;
+              edge2 = edge->serif;
+            }
+
+            if ( edge2 )
+            {
+              FT_Pos  edge_delta;
+              FT_Pos  seg_delta;
+
+
+              edge_delta = edge->fpos - edge2->fpos;
+              if ( edge_delta < 0 )
+                edge_delta = -edge_delta;
+
+              seg_delta = seg->pos - seg2->pos;
+              if ( seg_delta < 0 )
+                seg_delta = -seg_delta;
+
+              if ( seg_delta < edge_delta )
+                edge2 = seg2->edge;
+            }
+            else
+              edge2 = seg2->edge;
+
+            if ( is_serif )
+            {
+              edge->serif   = edge2;
+              edge2->flags |= AF_EDGE_SERIF;
+            }
+            else
+              edge->link  = edge2;
+          }
+
+          seg = seg->edge_next;
+
+        } while ( seg != edge->first );
+
+        /* set the round/straight flags */
+        edge->flags = AF_EDGE_NORMAL;
+
+        if ( is_round > 0 && is_round >= is_straight )
+          edge->flags |= AF_EDGE_ROUND;
+
+#if 0
+        /* set the edge's main direction */
+        edge->dir = AF_DIR_NONE;
+
+        if ( ups > downs )
+          edge->dir = (FT_Char)up_dir;
+
+        else if ( ups < downs )
+          edge->dir = (FT_Char)-up_dir;
+
+        else if ( ups == downs )
+          edge->dir = 0;  /* both up and down! */
+#endif
+
+        /* gets rid of serifs if link is set                */
+        /* XXX: This gets rid of many unpleasant artefacts! */
+        /*      Example: the `c' in cour.pfa at size 13     */
+
+        if ( edge->serif && edge->link )
+          edge->serif = 0;
+      }
+    }
+
+  Exit:
+    return error;
+  }
+
+
+  FT_LOCAL_DEF( FT_Error )
+  af_latin_hints_detect_features( AF_GlyphHints  hints,
+                                  AF_Dimension   dim )
+  {
+    FT_Error  error;
+
+
+    error = af_latin_hints_compute_segments( hints, dim );
+    if ( !error )
+    {
+      af_latin_hints_link_segments( hints, dim );
+
+      error = af_latin_hints_compute_edges( hints, dim );
+    }
+    return error;
+  }
+
+
+  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_Edge       edge       = axis->edges;
+    AF_Edge       edge_limit = edge + axis->num_edges;
+    AF_LatinAxis  latin      = &metrics->axis[ AF_DIMENSION_VERT ];
+    FT_Fixed      scale      = latin->scale;
+
+
+    /* compute which blue zones are active, i.e. have their scaled */
+    /* size < 3/4 pixels                                           */
+
+    /* 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 */
+
+
+      /* compute the initial threshold as a fraction of the EM size */
+      best_dist = FT_MulFix( metrics->units_per_em / 40, scale );
+
+      if ( best_dist > 64 / 2 )
+        best_dist = 64 / 2;
+
+      for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ )
+      {
+        AF_LatinBlue  blue = latin->blues + bb;
+        FT_Bool       is_top_blue, is_major_dir;
+
+
+        /* skip inactive blue zones (i.e., those that are too small) */
+        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 )
+        {
+          FT_Pos  dist;
+
+
+          /* first of all, compare it to the reference position */
+          dist = edge->fpos - blue->ref.org;
+          if ( dist < 0 )
+            dist = -dist;
+
+          dist = FT_MulFix( dist, scale );
+          if ( dist < best_dist )
+          {
+            best_dist = dist;
+            best_blue = & blue->ref;
+          }
+
+          /* 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 )
+          {
+            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;
+
+              dist = FT_MulFix( dist, scale );
+              if ( dist < best_dist )
+              {
+                best_dist = dist;
+                best_blue = & blue->shoot;
+              }
+            }
+          }
+        }
+      }
+
+      if ( best_blue )
+        edge->blue_edge = best_blue;
+    }
+  }
+
+
+  static FT_Error
+  af_latin_hints_init( AF_GlyphHints    hints,
+                       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 );
+
+    /*
+     *  correct x_scale and y_scale if needed, since they may have
+     *  been modified `af_latin_metrics_scale_dim' above
+     */
+    hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale;
+    hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta;
+    hints->y_scale = metrics->axis[AF_DIMENSION_VERT].scale;
+    hints->y_delta = metrics->axis[AF_DIMENSION_VERT].delta;
+
+    /* compute flags depending on render mode, etc. */
+    mode = metrics->root.scaler.render_mode;
+
+#if 0 /* #ifdef AF_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;
+    other_flags  = 0;
+
+    /*
+     *  We snap the width of vertical stems for the monochrome and
+     *  horizontal LCD rendering targets only.
+     */
+    if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD )
+      other_flags |= AF_LATIN_HINTS_HORZ_SNAP;
+
+    /*
+     *  We snap the width of horizontal stems for the monochrome and
+     *  vertical LCD rendering targets only.
+     */
+    if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD_V )
+      other_flags |= AF_LATIN_HINTS_VERT_SNAP;
+
+    /*
+     *  We adjust stems to full pixels only if we don't use the `light' mode.
+     */
+    if ( mode != FT_RENDER_MODE_LIGHT )
+      other_flags |= AF_LATIN_HINTS_STEM_ADJUST;
+
+    if ( mode == FT_RENDER_MODE_MONO )
+      other_flags |= AF_LATIN_HINTS_MONO;
+
+    /*
+     *  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 )
+      scaler_flags |= AF_SCALER_FLAG_NO_HORIZONTAL;
+
+    hints->scaler_flags = scaler_flags;
+    hints->other_flags  = other_flags;
+
+    return 0;
+  }
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****        L A T I N   G L Y P H   G R I D - F I T T I N G        *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /* snap a given width in scaled coordinates to one of the */
+  /* current standard widths                                */
+
+  static FT_Pos
+  af_latin_snap_width( AF_Width  widths,
+                       FT_Int    count,
+                       FT_Pos    width )
+  {
+    int     n;
+    FT_Pos  best      = 64 + 32 + 2;
+    FT_Pos  reference = width;
+    FT_Pos  scaled;
+
+
+    for ( n = 0; n < count; n++ )
+    {
+      FT_Pos  w;
+      FT_Pos  dist;
+
+
+      w = widths[n].cur;
+      dist = width - w;
+      if ( dist < 0 )
+        dist = -dist;
+      if ( dist < best )
+      {
+        best      = dist;
+        reference = w;
+      }
+    }
+
+    scaled = FT_PIX_ROUND( reference );
+
+    if ( width >= reference )
+    {
+      if ( width < scaled + 48 )
+        width = reference;
+    }
+    else
+    {
+      if ( width > scaled - 48 )
+        width = reference;
+    }
+
+    return width;
+  }
+
+
+  /* compute the snapped width of a given stem */
+
+  static FT_Pos
+  af_latin_compute_stem_width( AF_GlyphHints  hints,
+                               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];
+    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                      )
+      return width;
+
+    if ( dist < 0 )
+    {
+      dist = -width;
+      sign = 1;
+    }
+
+    if ( (  vertical && !AF_LATIN_HINTS_DO_VERT_SNAP( hints ) ) ||
+         ( !vertical && !AF_LATIN_HINTS_DO_HORZ_SNAP( hints ) ) )
+    {
+      /* 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 ) )
+        goto Done_Width;
+
+      else if ( ( base_flags & AF_EDGE_ROUND ) )
+      {
+        if ( dist < 80 )
+          dist = 64;
+      }
+      else if ( dist < 56 )
+        dist = 56;
+
+      if ( axis->width_count > 0 )
+      {
+        FT_Pos  delta;
+
+
+        /* compare to standard width */
+        if ( axis->width_count > 0 )
+        {
+          delta = dist - axis->widths[0].cur;
+
+          if ( delta < 0 )
+            delta = -delta;
+
+          if ( delta < 40 )
+          {
+            dist = axis->widths[0].cur;
+            if ( dist < 48 )
+              dist = 48;
+
+            goto Done_Width;
+          }
+        }
+
+        if ( dist < 3 * 64 )
+        {
+          delta  = dist & 63;
+          dist  &= -64;
+
+          if ( delta < 10 )
+            dist += delta;
+
+          else if ( delta < 32 )
+            dist += 10;
+
+          else if ( delta < 54 )
+            dist += 54;
+
+          else
+            dist += delta;
+        }
+        else
+          dist = ( dist + 32 ) & ~63;
+      }
+    }
+    else
+    {
+      /* strong hinting process: snap the stem width to integer pixels */
+      FT_Pos  org_dist = dist;
+
+
+      dist = af_latin_snap_width( axis->widths, axis->width_count, dist );
+
+      if ( vertical )
+      {
+        /* in the case of vertical hinting, always round */
+        /* the stem heights to integer pixels            */
+
+        if ( dist >= 64 )
+          dist = ( dist + 16 ) & ~63;
+        else
+          dist = 64;
+      }
+      else
+      {
+        if ( AF_LATIN_HINTS_DO_MONO( hints ) )
+        {
+          /* monochrome horizontal hinting: snap widths to integer pixels */
+          /* with a different threshold                                   */
+
+          if ( dist < 64 )
+            dist = 64;
+          else
+            dist = ( dist + 32 ) & ~63;
+        }
+        else
+        {
+          /* for horizontal anti-aliased hinting, we adopt a more subtle */
+          /* approach: we strengthen small stems, round stems whose size */
+          /* is between 1 and 2 pixels to an integer, otherwise nothing  */
+
+          if ( dist < 48 )
+            dist = ( dist + 64 ) >> 1;
+
+          else if ( dist < 128 )
+          {
+            /* We only round to an integer width if the corresponding */
+            /* distortion is less than 1/4 pixel.  Otherwise this     */
+            /* makes everything worse since the diagonals, which are  */
+            /* not hinted, appear a lot bolder or thinner than the    */
+            /* vertical stems.                                        */
+
+            FT_Int  delta;
+
+
+            dist = ( dist + 22 ) & ~63;
+            delta = dist - org_dist;
+            if ( delta < 0 )
+              delta = -delta;
+
+            if (delta >= 16)
+            {
+              dist = org_dist;
+              if ( dist < 48 )
+                dist = ( dist + 64 ) >> 1;
+            }
+          }
+          else
+            /* round otherwise to prevent color fringes in LCD mode */
+            dist = ( dist + 32 ) & ~63;
+        }
+      }
+    }
+
+  Done_Width:
+    if ( sign )
+      dist = -dist;
+
+    return dist;
+  }
+
+
+  /* align one stem edge relative to the previous stem edge */
+
+  static void
+  af_latin_align_linked_edge( AF_GlyphHints  hints,
+                              AF_Dimension   dim,
+                              AF_Edge        base_edge,
+                              AF_Edge        stem_edge )
+  {
+    FT_Pos  dist = stem_edge->opos - base_edge->opos;
+
+    FT_Pos  fitted_width = af_latin_compute_stem_width(
+                             hints, dim, dist,
+                             (AF_Edge_Flags)base_edge->flags,
+                             (AF_Edge_Flags)stem_edge->flags );
+
+
+    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 ));
+  }
+
+
+  static void
+  af_latin_align_serif_edge( AF_GlyphHints  hints,
+                             AF_Edge        base,
+                             AF_Edge        serif )
+  {
+    FT_UNUSED( hints );
+
+    serif->pos = base->pos + (serif->opos - base->opos);
+  }
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+  /****                                                                 ****/
+  /****                    E D G E   H I N T I N G                      ****/
+  /****                                                                 ****/
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+
+
+  FT_LOCAL_DEF( void )
+  af_latin_hint_edges( AF_GlyphHints  hints,
+                       AF_Dimension   dim )
+  {
+    AF_AxisHints  axis       = &hints->axis[dim];
+    AF_Edge       edges      = axis->edges;
+    AF_Edge       edge_limit = edges + axis->num_edges;
+    FT_Int        n_edges;
+    AF_Edge       edge;
+    AF_Edge       anchor     = 0;
+    FT_Int        has_serifs = 0;
+
+
+    /* we begin by aligning all stems relative to the blue zone */
+    /* if needed -- that's only for horizontal edges            */
+
+    if ( dim == AF_DIMENSION_VERT && 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;
+
+        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 ));
+
+        edge1->pos    = blue->fit;
+        edge1->flags |= AF_EDGE_DONE;
+
+        if ( edge2 && !edge2->blue_edge )
+        {
+          af_latin_align_linked_edge( hints, dim, edge1, edge2 );
+          edge2->flags |= AF_EDGE_DONE;
+        }
+
+        if ( !anchor )
+          anchor = edge;
+      }
+    }
+
+    /* now we will align all stem edges, trying to maintain the */
+    /* relative order of stems in the glyph                     */
+    for ( edge = edges; edge < edge_limit; edge++ )
+    {
+      AF_Edge  edge2;
+
+
+      if ( edge->flags & AF_EDGE_DONE )
+        continue;
+
+      /* skip all non-stem edges */
+      edge2 = edge->link;
+      if ( !edge2 )
+      {
+        has_serifs++;
+        continue;
+      }
+
+      /* now align the stem */
+
+      /* 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 ));
+
+        af_latin_align_linked_edge( hints, dim, edge2, edge );
+        edge->flags |= AF_EDGE_DONE;
+        continue;
+      }
+
+      if ( !anchor )
+      {
+        FT_Pos  org_len, org_center, cur_len;
+        FT_Pos  cur_pos1, error1, error2, u_off, d_off;
+
+
+        org_len = edge2->opos - edge->opos;
+        cur_len = af_latin_compute_stem_width(
+                    hints, dim, org_len,
+                    (AF_Edge_Flags)edge->flags,
+                    (AF_Edge_Flags)edge2->flags );
+        if ( cur_len <= 64 )
+          u_off = d_off = 32;
+        else
+        {
+          u_off = 38;
+          d_off = 26;
+        }
+
+        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 );
+          if ( error1 < 0 )
+            error1 = -error1;
+
+          error2 = org_center - ( cur_pos1 + d_off );
+          if ( error2 < 0 )
+            error2 = -error2;
+
+          if ( error1 < error2 )
+            cur_pos1 -= u_off;
+          else
+            cur_pos1 += d_off;
+
+          edge->pos  = cur_pos1 - cur_len / 2;
+          edge2->pos = edge->pos + cur_len;
+        }
+        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;
+
+        edge->flags |= AF_EDGE_DONE;
+
+        af_latin_align_linked_edge( hints, dim, edge, edge2 );
+      }
+      else
+      {
+        FT_Pos  org_pos, org_len, org_center, cur_len;
+        FT_Pos  cur_pos1, cur_pos2, delta1, delta2;
+
+
+        org_pos    = anchor->pos + ( edge->opos - anchor->opos );
+        org_len    = edge2->opos - edge->opos;
+        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 );
+
+        if ( edge2->flags & AF_EDGE_DONE )
+          edge->pos = edge2->pos - cur_len;
+
+        else if ( cur_len < 96 )
+        {
+          FT_Pos  u_off, d_off;
+
+
+          cur_pos1 = FT_PIX_ROUND( org_center );
+
+          if (cur_len <= 64 )
+            u_off = d_off = 32;
+          else
+          {
+            u_off = 38;
+            d_off = 26;
+          }
+
+          delta1 = org_center - ( cur_pos1 - u_off );
+          if ( delta1 < 0 )
+            delta1 = -delta1;
+
+          delta2 = org_center - ( cur_pos1 + d_off );
+          if ( delta2 < 0 )
+            delta2 = -delta2;
+
+          if ( delta1 < delta2 )
+            cur_pos1 -= u_off;
+          else
+            cur_pos1 += d_off;
+
+          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 ));
+        }
+        else
+        {
+          org_pos    = anchor->pos + ( edge->opos - anchor->opos );
+          org_len    = edge2->opos - edge->opos;
+          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 );
+
+          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;
+          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 ));
+        }
+
+        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 ));
+          edge->pos = edge[-1].pos;
+        }
+      }
+    }
+
+    /* make sure that lowercase m's maintain their symmetry */
+
+    /* In general, lowercase m's have six vertical edges if they are sans */
+    /* serif, or twelve if they are with serifs.  This implementation is  */
+    /* based on that assumption, and seems to work very well with most    */
+    /* faces.  However, if for a certain face this assumption is not      */
+    /* true, the m is just rendered like before.  In addition, any stem   */
+    /* correction will only be applied to symmetrical glyphs (even if the */
+    /* glyph is not an m), so the potential for unwanted distortion is    */
+    /* relatively low.                                                    */
+
+    /* We don't handle horizontal edges since we can't easily assure that */
+    /* the third (lowest) stem aligns with the base line; it might end up */
+    /* one pixel higher or lower.                                         */
+
+    n_edges = edge_limit - edges;
+    if ( dim == AF_DIMENSION_HORZ && ( n_edges == 6 || n_edges == 12 ) )
+    {
+      AF_Edge  edge1, edge2, edge3;
+      FT_Pos   dist1, dist2, span, delta;
+
+
+      if ( n_edges == 6 )
+      {
+        edge1 = edges;
+        edge2 = edges + 2;
+        edge3 = edges + 4;
+      }
+      else
+      {
+        edge1 = edges + 1;
+        edge2 = edges + 5;
+        edge3 = edges + 9;
+      }
+
+      dist1 = edge2->opos - edge1->opos;
+      dist2 = edge3->opos - edge2->opos;
+
+      span = dist1 - dist2;
+      if ( span < 0 )
+        span = -span;
+
+      if ( span < 8 )
+      {
+        delta = edge3->pos - ( 2 * edge2->pos - edge1->pos );
+        edge3->pos -= delta;
+        if ( edge3->link )
+          edge3->link->pos -= delta;
+
+        /* move the serifs along with the stem */
+        if ( n_edges == 12 )
+        {
+          ( edges + 8 )->pos -= delta;
+          ( edges + 11 )->pos -= delta;
+        }
+
+        edge3->flags |= AF_EDGE_DONE;
+        if ( edge3->link )
+          edge3->link->flags |= AF_EDGE_DONE;
+      }
+    }
+
+    if ( has_serifs || !anchor )
+    {
+      /*
+       *  now hint the remaining edges (serifs and single) in order
+       *  to complete our processing
+       */
+      for ( edge = edges; edge < edge_limit; edge++ )
+      {
+        FT_Pos  delta;
+
+
+        if ( edge->flags & AF_EDGE_DONE )
+          continue;
+
+        delta = 1000;
+
+        if ( edge->serif )
+        {
+          delta = edge->serif->opos - edge->opos;
+          if ( delta < 0 )
+            delta = -delta;
+        }
+
+        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 ));
+        }
+        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;
+        }
+        else
+        {
+          AF_Edge  before, after;
+
+
+          for ( before = edge - 1; before >= edges; before-- )
+            if ( before->flags & AF_EDGE_DONE )
+              break;
+
+          for ( after = edge + 1; after < edge_limit; after++ )
+            if ( after->flags & AF_EDGE_DONE )
+              break;
+
+          if ( before >= edges && before < edge   &&
+               after < edge_limit && after > edge )
+          {
+            edge->pos = before->pos +
+                          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 ));
+          }
+          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 ));
+          }
+        }
+
+        edge->flags |= AF_EDGE_DONE;
+
+        if ( edge > edges && edge->pos < edge[-1].pos )
+          edge->pos = edge[-1].pos;
+
+        if ( edge + 1 < edge_limit        &&
+             edge[1].flags & AF_EDGE_DONE &&
+             edge->pos > edge[1].pos      )
+          edge->pos = edge[1].pos;
+      }
+    }
+  }
+
+
+  static FT_Error
+  af_latin_hints_apply( AF_GlyphHints    hints,
+                        FT_Outline*      outline,
+                        AF_LatinMetrics  metrics )
+  {
+    FT_Error  error;
+    int       dim;
+
+
+    error = af_glyph_hints_reload( hints, outline, 1 );
+    if ( error )
+      goto Exit;
+
+    /* analyze glyph outline */
+#ifdef AF_USE_WARPER
+    if ( metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ||
+         AF_HINTS_DO_HORIZONTAL( hints ) )
+#else
+    if ( AF_HINTS_DO_HORIZONTAL( hints ) )
+#endif
+    {
+      error = af_latin_hints_detect_features( hints, AF_DIMENSION_HORZ );
+      if ( error )
+        goto Exit;
+    }
+
+    if ( AF_HINTS_DO_VERTICAL( hints ) )
+    {
+      error = af_latin_hints_detect_features( hints, AF_DIMENSION_VERT );
+      if ( error )
+        goto Exit;
+
+      af_latin_hints_compute_blue_edges( hints, metrics );
+    }
+
+    /* 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 ) )
+      {
+        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 );
+        continue;
+      }
+#endif
+
+      if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) ||
+           ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) )   )
+      {
+        af_latin_hint_edges( hints, (AF_Dimension)dim );
+        af_glyph_hints_align_edge_points( hints, (AF_Dimension)dim );
+        af_glyph_hints_align_strong_points( hints, (AF_Dimension)dim );
+        af_glyph_hints_align_weak_points( hints, (AF_Dimension)dim );
+      }
+    }
+    af_glyph_hints_save( hints, outline );
+
+  Exit:
+    return error;
+  }
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****              L A T I N   S C R I P T   C L A S S              *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+
+  /* XXX: this should probably fine tuned to differentiate better between */
+  /*      scripts...                                                      */
+
+  static const AF_Script_UniRangeRec  af_latin_uniranges[] =
+  {
+    { 0x0020, 0x007F },  /* Basic Latin (no control characters) */
+    { 0x00A0, 0x00FF },  /* Latin-1 Supplement (no control characters) */
+    { 0x0100, 0x017F },  /* Latin Extended-A */
+    { 0x0180, 0x024F },  /* Latin Extended-B */
+    { 0x0250, 0x02AF },  /* IPA Extensions */
+    { 0x02B0, 0x02FF },  /* Spacing Modifier Letters */
+    { 0x0300, 0x036F },  /* Combining Diacritical Marks */
+    { 0x0370, 0x03FF },  /* Greek and Coptic */
+    { 0x0400, 0x04FF },  /* Cyrillic */
+    { 0x0500, 0x052F },  /* Cyrillic Supplement */
+    { 0x1D00, 0x1D7F },  /* Phonetic Extensions */
+    { 0x1D80, 0x1DBF },  /* Phonetic Extensions Supplement */
+    { 0x1DC0, 0x1DFF },  /* Combining Diacritical Marks Supplement */
+    { 0x1E00, 0x1EFF },  /* Latin Extended Additional */
+    { 0x1F00, 0x1FFF },  /* Greek Extended */
+    { 0x2000, 0x206F },  /* General Punctuation */
+    { 0x2070, 0x209F },  /* Superscripts and Subscripts */
+    { 0x20A0, 0x20CF },  /* Currency Symbols */
+    { 0x2150, 0x218F },  /* Number Forms */
+    { 0x2460, 0x24FF },  /* Enclosed Alphanumerics */
+    { 0     , 0      }
+  };
+
+
+  FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec
+  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
+  };
+
+
+/* END */
diff --git a/src/autofit/aflatin.h b/src/autofit/aflatin.h
new file mode 100644
index 0000000..3251d37
--- /dev/null
+++ b/src/autofit/aflatin.h
@@ -0,0 +1,209 @@
+/***************************************************************************/
+/*                                                                         */
+/*  aflatin.h                                                              */
+/*                                                                         */
+/*    Auto-fitter hinting routines for latin script (specification).       */
+/*                                                                         */
+/*  Copyright 2003, 2004, 2005, 2006, 2007 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 __AFLATIN_H__
+#define __AFLATIN_H__
+
+#include "afhints.h"
+
+
+FT_BEGIN_HEADER
+
+
+  /* the latin-specific script class */
+
+  FT_CALLBACK_TABLE const AF_ScriptClassRec
+  af_latin_script_class;
+
+
+/* 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 )
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****            L A T I N   G L O B A L   M E T R I C S            *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+
+  /*
+   *  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.
+   */
+
+
+  /* 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_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_FLAG_MAX
+  };
+
+
+  typedef struct  AF_LatinBlueRec_
+  {
+    AF_WidthRec  ref;
+    AF_WidthRec  shoot;
+    FT_UInt      flags;
+
+  } AF_LatinBlueRec, *AF_LatinBlue;
+
+
+  typedef struct  AF_LatinAxisRec_
+  {
+    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;
+
+    /* ignored for horizontal metrics */
+    FT_Bool          control_overshoot;
+    FT_UInt          blue_count;
+    AF_LatinBlueRec  blues[AF_LATIN_BLUE_MAX];
+
+    FT_Fixed         org_scale;
+    FT_Pos           org_delta;
+
+  } AF_LatinAxisRec, *AF_LatinAxis;
+
+
+  typedef struct  AF_LatinMetricsRec_
+  {
+    AF_ScriptMetricsRec  root;
+    FT_UInt              units_per_em;
+    AF_LatinAxisRec      axis[AF_DIMENSION_MAX];
+
+  } AF_LatinMetricsRec, *AF_LatinMetrics;
+
+
+  FT_LOCAL( FT_Error )
+  af_latin_metrics_init( AF_LatinMetrics  metrics,
+                         FT_Face          face );
+
+  FT_LOCAL( void )
+  af_latin_metrics_scale( AF_LatinMetrics  metrics,
+                          AF_Scaler        scaler );
+
+  FT_LOCAL( void )
+  af_latin_metrics_init_widths( AF_LatinMetrics  metrics,
+                                FT_Face          face,
+                                FT_ULong         charcode );
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****           L A T I N   G L Y P H   A N A L Y S I S             *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  enum
+  {
+    AF_LATIN_HINTS_HORZ_SNAP   = 1 << 0, /* enable stem width snapping  */
+    AF_LATIN_HINTS_VERT_SNAP   = 1 << 1, /* enable stem height snapping */
+    AF_LATIN_HINTS_STEM_ADJUST = 1 << 2, /* enable stem width/height    */
+                                         /* adjustment                  */
+    AF_LATIN_HINTS_MONO        = 1 << 3  /* indicate monochrome         */
+                                         /* rendering                   */
+  };
+
+
+#define AF_LATIN_HINTS_DO_HORZ_SNAP( h )             \
+  AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_HORZ_SNAP )
+
+#define AF_LATIN_HINTS_DO_VERT_SNAP( h )             \
+  AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_VERT_SNAP )
+
+#define AF_LATIN_HINTS_DO_STEM_ADJUST( h )             \
+  AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_STEM_ADJUST )
+
+#define AF_LATIN_HINTS_DO_MONO( h )             \
+  AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_MONO )
+
+
+  /*
+   *  This shouldn't normally be exported.  However, other scripts might
+   *  like to use this function 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,
+                                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,
+                                  AF_Dimension   dim );
+
+/* */
+
+FT_END_HEADER
+
+#endif /* __AFLATIN_H__ */
+
+
+/* END */
diff --git a/src/autofit/aflatin2.c b/src/autofit/aflatin2.c
new file mode 100644
index 0000000..0b41774
--- /dev/null
+++ b/src/autofit/aflatin2.c
@@ -0,0 +1,2286 @@
+/***************************************************************************/
+/*                                                                         */
+/*  aflatin.c                                                              */
+/*                                                                         */
+/*    Auto-fitter hinting routines for latin script (body).                */
+/*                                                                         */
+/*  Copyright 2003, 2004, 2005, 2006, 2007 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 "aflatin.h"
+#include "aflatin2.h"
+#include "aferrors.h"
+
+
+#ifdef AF_USE_WARPER
+#include "afwarp.h"
+#endif
+
+  FT_LOCAL_DEF( FT_Error )
+  af_latin2_hints_compute_segments( AF_GlyphHints  hints,
+                                   AF_Dimension   dim );
+
+  FT_LOCAL_DEF( void )
+  af_latin2_hints_link_segments( AF_GlyphHints  hints,
+                                 AF_Dimension   dim );
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****            L A T I N   G L O B A L   M E T R I C S            *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  FT_LOCAL_DEF( void )
+  af_latin2_metrics_init_widths( AF_LatinMetrics  metrics,
+                                FT_Face          face,
+                                FT_ULong         charcode )
+  {
+    /* scan the array of segments in each direction */
+    AF_GlyphHintsRec  hints[1];
+
+
+    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;
+
+
+      glyph_index = FT_Get_Char_Index( face, charcode );
+      if ( glyph_index == 0 )
+        goto Exit;
+
+      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     = scaler->y_scale = 0x10000L;
+      scaler->x_delta     = 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 );
+
+      error = af_glyph_hints_reload( hints, &face->glyph->outline, 0 );
+      if ( error )
+        goto Exit;
+
+      for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
+      {
+        AF_LatinAxis  axis    = &metrics->axis[dim];
+        AF_AxisHints  axhints = &hints->axis[dim];
+        AF_Segment    seg, limit, link;
+        FT_UInt       num_widths = 0;
+
+
+        error = af_latin2_hints_compute_segments( hints,
+                                                 (AF_Dimension)dim );
+        if ( error )
+          goto Exit;
+
+        af_latin2_hints_link_segments( hints,
+                                      (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_LATIN_MAX_WIDTHS )
+              axis->widths[ num_widths++ ].org = dist;
+          }
+        }
+
+        af_sort_widths( num_widths, axis->widths );
+        axis->width_count = num_widths;
+      }
+
+  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 );
+
+        /* 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 );
+  }
+
+
+
+#define AF_LATIN_MAX_TEST_CHARACTERS  12
+
+
+  static const char* const  af_latin2_blue_chars[AF_LATIN_MAX_BLUES] =
+  {
+    "THEZOCQS",
+    "HEZLOCUS",
+    "fijkdbh",
+    "xzroesc",
+    "xzroesc",
+    "pqgjy"
+  };
+
+
+  static void
+  af_latin2_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_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;
+
+
+    /* 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')                */
+
+    AF_LOG(( "blue zones computation\n" ));
+    AF_LOG(( "------------------------------------------------\n" ));
+
+    for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ )
+    {
+      const char*  p     = af_latin2_blue_chars[bb];
+      const char*  limit = p + AF_LATIN_MAX_TEST_CHARACTERS;
+      FT_Pos*      blue_ref;
+      FT_Pos*      blue_shoot;
+
+
+      AF_LOG(( "blue %3d: ", bb ));
+
+      num_flats  = 0;
+      num_rounds = 0;
+
+      for ( ; p < limit && *p; p++ )
+      {
+        FT_UInt     glyph_index;
+        FT_Int      best_point, best_y, best_first, best_last;
+        FT_Vector*  points;
+        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 )
+          continue;
+
+        error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
+        if ( error || glyph->outline.n_points <= 0 )
+          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 */
+
+        {
+          FT_Int  nn;
+          FT_Int  first = 0;
+          FT_Int  last  = -1;
+
+
+          for ( nn = 0; nn < glyph->outline.n_contours; first = last+1, nn++ )
+          {
+            FT_Int  old_best_point = best_point;
+            FT_Int  pp;
+
+
+            last = glyph->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_LATIN_IS_TOP_BLUE( bb ) )
+            {
+              for ( pp = first; pp <= last; pp++ )
+                if ( best_point < 0 || points[pp].y > best_y )
+                {
+                  best_point = pp;
+                  best_y     = points[pp].y;
+                }
+            }
+            else
+            {
+              for ( pp = first; pp <= last; pp++ )
+                if ( best_point < 0 || points[pp].y < best_y )
+                {
+                  best_point = pp;
+                  best_y     = points[pp].y;
+                }
+            }
+
+            if ( best_point != old_best_point )
+            {
+              best_first = first;
+              best_last  = last;
+            }
+          }
+          AF_LOG(( "%5d", 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_Int  start, end, prev, next;
+          FT_Pos  dist;
+
+
+          /* now look for the previous and next points that are not on the */
+          /* same Y coordinate.  Threshold the `closeness'...              */
+          start = end = best_point;
+
+          do
+          {
+            prev = start-1;
+            if ( prev < best_first )
+              prev = best_last;
+
+            dist = points[prev].y - best_y;
+            if ( dist < -5 || dist > 5 )
+              break;
+
+            start = prev;
+
+          } while ( start != best_point );
+
+          do
+          {
+            next = end+1;
+            if ( next > best_last )
+              next = best_first;
+
+            dist = points[next].y - best_y;
+            if ( dist < -5 || dist > 5 )
+              break;
+
+            end = next;
+
+          } while ( end != best_point );
+
+          /* now, set the `round' flag depending on the segment's kind */
+          round = FT_BOOL(
+            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' ));
+        }
+
+        if ( round )
+          rounds[num_rounds++] = best_y;
+        else
+          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" ));
+        continue;
+      }
+
+      /* we have computed the contents of the `rounds' 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_rounds, rounds );
+      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 = rounds[num_rounds / 2];
+      }
+      else if ( num_rounds == 0 )
+      {
+        *blue_ref   =
+        *blue_shoot = flats[num_flats / 2];
+      }
+      else
+      {
+        *blue_ref   = flats[num_flats / 2];
+        *blue_shoot = rounds[num_rounds / 2];
+      }
+
+      /* there are sometimes problems: if the overshoot position of top     */
+      /* zones is under its reference position, or the opposite for bottom  */
+      /* zones.  We must thus check everything there and correct the errors */
+      if ( *blue_shoot != *blue_ref )
+      {
+        FT_Pos   ref      = *blue_ref;
+        FT_Pos   shoot    = *blue_shoot;
+        FT_Bool  over_ref = FT_BOOL( shoot > ref );
+
+
+        if ( AF_LATIN_IS_TOP_BLUE( bb ) ^ over_ref )
+          *blue_shoot = *blue_ref = ( shoot + ref ) / 2;
+      }
+
+      blue->flags = 0;
+      if ( AF_LATIN_IS_TOP_BLUE( bb ) )
+        blue->flags |= AF_LATIN_BLUE_TOP;
+
+      /*
+       * The following flags 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 )
+        blue->flags |= AF_LATIN_BLUE_ADJUSTMENT;
+
+      AF_LOG(( "-- ref = %ld, shoot = %ld\n", *blue_ref, *blue_shoot ));
+    }
+
+    return;
+  }
+
+
+  FT_LOCAL_DEF( FT_Error )
+  af_latin2_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 )
+    {
+      /* For now, compute the standard width and height from the `o'. */
+      af_latin2_metrics_init_widths( metrics, face, 'o' );
+      af_latin2_metrics_init_blues( metrics, face );
+    }
+
+    FT_Set_Charmap( face, oldmap );
+    return AF_Err_Ok;
+  }
+
+
+  static void
+  af_latin2_metrics_scale_dim( AF_LatinMetrics  metrics,
+                              AF_Scaler        scaler,
+                              AF_Dimension     dim )
+  {
+    FT_Fixed      scale;
+    FT_Pos        delta;
+    AF_LatinAxis  axis;
+    FT_UInt       nn;
+
+
+    if ( dim == AF_DIMENSION_HORZ )
+    {
+      scale = scaler->x_scale;
+      delta = scaler->x_delta;
+    }
+    else
+    {
+      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;
+
+    /*
+     * correct Y scale to optimize the alignment of the top of small
+     * letters to the pixel grid
+     */
+    if ( dim == AF_DIMENSION_VERT )
+    {
+      AF_LatinAxis  vaxis = &metrics->axis[AF_DIMENSION_VERT];
+      AF_LatinBlue  blue = NULL;
+
+
+      for ( nn = 0; nn < vaxis->blue_count; nn++ )
+      {
+        if ( vaxis->blues[nn].flags & AF_LATIN_BLUE_ADJUSTMENT )
+        {
+          blue = &vaxis->blues[nn];
+          break;
+        }
+      }
+
+      if ( blue )
+      {
+        FT_Pos  scaled = FT_MulFix( blue->shoot.org, scaler->y_scale );
+        FT_Pos  fitted = ( scaled + 40 ) & ~63;
+
+#if 1
+        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 ));
+        }
+#endif
+      }
+    }
+
+    axis->scale = scale;
+    axis->delta = delta;
+
+    if ( dim == AF_DIMENSION_HORZ )
+    {
+      metrics->root.scaler.x_scale = scale;
+      metrics->root.scaler.x_delta = delta;
+    }
+    else
+    {
+      metrics->root.scaler.y_scale = scale;
+      metrics->root.scaler.y_delta = delta;
+    }
+
+    /* scale the standard widths */
+    for ( nn = 0; nn < axis->width_count; nn++ )
+    {
+      AF_Width  width = axis->widths + nn;
+
+
+      width->cur = FT_MulFix( width->org, scale );
+      width->fit = width->cur;
+    }
+
+    /* an extra-light axis corresponds to a standard width that is */
+    /* smaller than 0.75 pixels                                    */
+    axis->extra_light =
+      (FT_Bool)( FT_MulFix( axis->standard_width, scale ) < 32 + 8 );
+
+    if ( dim == AF_DIMENSION_VERT )
+    {
+      /* scale the blue zones */
+      for ( nn = 0; nn < axis->blue_count; nn++ )
+      {
+        AF_LatinBlue  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_LATIN_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;
+
+          delta1 = blue->shoot.org - blue->ref.org;
+          delta2 = delta1;
+          if ( delta1 < 0 )
+            delta2 = -delta2;
+
+          delta2 = FT_MulFix( delta2, scale );
+
+          if ( delta2 < 32 )
+            delta2 = 0;
+          else if ( delta2 < 64 )
+            delta2 = 32 + ( ( ( delta2 - 32 ) + 16 ) & ~31 );
+          else
+            delta2 = FT_PIX_ROUND( delta2 );
+
+          if ( delta1 < 0 )
+            delta2 = -delta2;
+
+          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 ));
+
+          blue->flags |= AF_LATIN_BLUE_ACTIVE;
+        }
+      }
+    }
+  }
+
+
+  FT_LOCAL_DEF( void )
+  af_latin2_metrics_scale( AF_LatinMetrics  metrics,
+                          AF_Scaler        scaler )
+  {
+    metrics->root.scaler.render_mode = scaler->render_mode;
+    metrics->root.scaler.face        = scaler->face;
+
+    af_latin2_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ );
+    af_latin2_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT );
+  }
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****           L A T I N   G L Y P H   A N A L Y S I S             *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+#define  SORT_SEGMENTS
+
+  FT_LOCAL_DEF( FT_Error )
+  af_latin2_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;
+
+
+    FT_ZERO( &seg0 );
+    seg0.score = 32000;
+    seg0.flags = AF_EDGE_NORMAL;
+
+    major_dir   = (AF_Direction)FT_ABS( axis->major_dir );
+    segment_dir = major_dir;
+
+    axis->num_segments = 0;
+
+    /* set up (u,v) in each point */
+    if ( dim == AF_DIMENSION_HORZ )
+    {
+      AF_Point  point = hints->points;
+      AF_Point  limit = point + hints->num_points;
+
+
+      for ( ; point < limit; point++ )
+      {
+        point->u = point->fx;
+        point->v = point->fy;
+      }
+    }
+    else
+    {
+      AF_Point  point = hints->points;
+      AF_Point  limit = point + hints->num_points;
+
+
+      for ( ; point < limit; point++ )
+      {
+        point->u = point->fy;
+        point->v = point->fx;
+      }
+    }
+
+    /* do each contour separately */
+    for ( ; contour < contour_limit; contour++ )
+    {
+      AF_Point  point   =  contour[0];
+      AF_Point  start   =  point;
+      AF_Point  last    =  point->prev;
+
+
+      if ( point == last )  /* skip singletons -- just in case */
+        continue;
+
+      /* already on an edge ?, backtrack to find its start */
+      if ( FT_ABS( point->in_dir ) == major_dir )
+      {
+        point = point->prev;
+
+        while ( point->in_dir == start->in_dir )
+          point = point->prev;
+      }
+      else  /* otherwise, find first segment start, if any */
+      {
+        while ( FT_ABS( point->out_dir ) != major_dir )
+        {
+          point = point->next;
+
+          if ( point == start )
+            goto NextContour;
+        }
+      }
+
+      start = point;
+
+      for  (;;)
+      {
+        AF_Point  first;
+        FT_Pos    min_u, min_v, max_u, max_v;
+
+        /* we're at the start of a new segment */
+        FT_ASSERT( FT_ABS( point->out_dir ) == major_dir &&
+                           point->in_dir != point->out_dir );
+        first = point;
+
+        min_u = max_u = point->u;
+        min_v = max_v = point->v;
+
+        point = point->next;
+
+        while ( point->out_dir == first->out_dir )
+        {
+          point = point->next;
+
+          if ( point->u < min_u )
+            min_u = point->u;
+
+          if ( point->u > max_u )
+            max_u = point->u;
+        }
+
+        if ( point->v < min_v )
+          min_v = point->v;
+
+        if ( point->v > max_v )
+          max_v = point->v;
+
+        /* record new segment */
+        error = af_axis_hints_new_segment( axis, memory, &segment );
+        if ( error )
+          goto Exit;
+
+        segment[0]         = seg0;
+        segment->dir       = first->out_dir;
+        segment->first     = first;
+        segment->last      = point;
+        segment->contour   = contour;
+        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);
+
+        /* 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  f1;
+
+
+          segment->flags &= ~AF_EDGE_ROUND;
+
+          for ( ; pt != last; f0 = f1 )
+          {
+            pt = pt->next;
+            f1 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL);
+
+            if ( !f0 && !f1 )
+              break;
+
+            if ( pt == last )
+              segment->flags |= AF_EDGE_ROUND;
+          }
+        }
+
+       /* this can happen in the case of a degenerate contour
+        * e.g. a 2-point vertical contour
+        */
+        if ( point == start )
+          break;
+
+        /* jump to the start of the next segment, if any */
+        while ( FT_ABS(point->out_dir) != major_dir )
+        {
+          point = point->next;
+
+          if ( point == start )
+            goto NextContour;
+        }
+      }
+
+    NextContour:
+      ;
+    } /* contours */
+
+    /* now slightly increase the height of segments when 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;
+
+
+      for ( segment = segments; segment < segments_end; segment++ )
+      {
+        AF_Point  first   = segment->first;
+        AF_Point  last    = segment->last;
+        AF_Point  p;
+        FT_Pos    first_v = first->v;
+        FT_Pos    last_v  = last->v;
+
+
+        if ( first == last )
+          continue;
+
+        if ( first_v < last_v )
+        {
+          p = first->prev;
+          if ( p->v < first_v )
+            segment->height = (FT_Short)( segment->height +
+                                          ( ( first_v - p->v ) >> 1 ) );
+
+          p = last->next;
+          if ( p->v > last_v )
+            segment->height = (FT_Short)( segment->height +
+                                          ( ( p->v - last_v ) >> 1 ) );
+        }
+        else
+        {
+          p = first->prev;
+          if ( p->v > first_v )
+            segment->height = (FT_Short)( segment->height +
+                                          ( ( p->v - first_v ) >> 1 ) );
+
+          p = last->next;
+          if ( p->v < last_v )
+            segment->height = (FT_Short)( segment->height +
+                                          ( ( last_v - p->v ) >> 1 ) );
+        }
+      }
+    }
+
+#ifdef AF_SORT_SEGMENTS
+   /* place all segments with a negative direction to the start
+    * of the array, used to speed up segment linking later...
+    */
+    {
+      AF_Segment  segments = axis->segments;
+      FT_UInt     count    = axis->num_segments;
+      FT_UInt     ii, jj;
+
+      for (ii = 0; ii < count; ii++)
+      {
+        if ( segments[ii].dir > 0 )
+        {
+          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;
+
+              break;
+            }
+          }
+
+          if ( jj == count )
+            break;
+        }
+      }
+      axis->mid_segments = ii;
+    }
+#endif
+
+  Exit:
+    return error;
+  }
+
+
+  FT_LOCAL_DEF( void )
+  af_latin2_hints_link_segments( AF_GlyphHints  hints,
+                                AF_Dimension   dim )
+  {
+    AF_AxisHints  axis          = &hints->axis[dim];
+    AF_Segment    segments      = axis->segments;
+    AF_Segment    segment_limit = segments + axis->num_segments;
+#ifdef AF_SORT_SEGMENTS
+    AF_Segment    segment_mid   = segments + axis->mid_segments;
+#endif
+    FT_Pos        len_threshold, len_score;
+    AF_Segment    seg1, seg2;
+
+
+    len_threshold = AF_LATIN_CONSTANT( hints->metrics, 8 );
+    if ( len_threshold == 0 )
+      len_threshold = 1;
+
+    len_score = AF_LATIN_CONSTANT( hints->metrics, 6000 );
+
+#ifdef AF_SORT_SEGMENTS
+    for ( seg1 = segments; seg1 < segment_mid; seg1++ )
+    {
+      if ( seg1->dir != axis->major_dir || seg1->first == seg1->last )
+        continue;
+
+      for ( seg2 = segment_mid; seg2 < segment_limit; seg2++ )
+#else
+    /* 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 )
+        continue;
+
+      for ( seg2 = segments; seg2 < segment_limit; seg2++ )
+        if ( seg1->dir + seg2->dir == 0 && seg2->pos > seg1->pos )
+#endif
+        {
+          FT_Pos  pos1 = seg1->pos;
+          FT_Pos  pos2 = seg2->pos;
+          FT_Pos  dist = pos2 - pos1;
+
+
+          if ( dist < 0 )
+            continue;
+
+          {
+            FT_Pos  min = seg1->min_coord;
+            FT_Pos  max = seg1->max_coord;
+            FT_Pos  len, score;
+
+
+            if ( min < seg2->min_coord )
+              min = seg2->min_coord;
+
+            if ( max > seg2->max_coord )
+              max = seg2->max_coord;
+
+            len = max - min;
+            if ( len >= len_threshold )
+            {
+              score = dist + len_score / len;
+              if ( score < seg1->score )
+              {
+                seg1->score = score;
+                seg1->link  = seg2;
+              }
+
+              if ( score < seg2->score )
+              {
+                seg2->score = score;
+                seg2->link  = seg1;
+              }
+            }
+          }
+        }
+    }
+
+    /* now, compute the `serif' segments */
+    for ( seg1 = segments; seg1 < segment_limit; seg1++ )
+    {
+      seg2 = seg1->link;
+
+      if ( seg2 )
+      {
+        if ( seg2->link != seg1 )
+        {
+          seg1->link  = 0;
+          seg1->serif = seg2->link;
+        }
+      }
+    }
+  }
+
+
+  FT_LOCAL_DEF( FT_Error )
+  af_latin2_hints_compute_edges( AF_GlyphHints  hints,
+                                AF_Dimension   dim )
+  {
+    AF_AxisHints  axis   = &hints->axis[dim];
+    FT_Error      error  = AF_Err_Ok;
+    FT_Memory     memory = hints->memory;
+    AF_LatinAxis  laxis  = &((AF_LatinMetrics)hints->metrics)->axis[dim];
+
+    AF_Segment    segments      = axis->segments;
+    AF_Segment    segment_limit = segments + axis->num_segments;
+    AF_Segment    seg;
+
+    AF_Direction  up_dir;
+    FT_Fixed      scale;
+    FT_Pos        edge_distance_threshold;
+    FT_Pos        segment_length_threshold;
+
+
+    axis->num_edges = 0;
+
+    scale = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale
+                                         : hints->y_scale;
+
+    up_dir = ( dim == AF_DIMENSION_HORZ ) ? AF_DIR_UP
+                                          : AF_DIR_RIGHT;
+
+    /*
+     *  We want to ignore very small (mostly serif) segments, we do that
+     *  by ignoring those that whose length is less than a given fraction
+     *  of the standard width. If there is no standard width, we ignore
+     *  those that are less than a given size in pixels
+     *
+     *  also, unlink serif segments that are linked to segments farther
+     *  than 50% of the standard width
+     */
+    if ( dim == AF_DIMENSION_HORZ )
+    {
+      if ( laxis->width_count > 0 )
+        segment_length_threshold = (laxis->standard_width * 10 ) >> 4;
+      else
+        segment_length_threshold = FT_DivFix( 64, hints->y_scale );
+    }
+    else
+      segment_length_threshold = 0;
+
+    /*********************************************************************/
+    /*                                                                   */
+    /* 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.    */
+    /*                                                                   */
+    /* 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    */
+    /* edge's properties.                                                */
+    /*                                                                   */
+    /* Note that the edges table is sorted along the segment/edge        */
+    /* position.                                                         */
+    /*                                                                   */
+    /*********************************************************************/
+
+    edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold,
+                                         scale );
+    if ( edge_distance_threshold > 64 / 4 )
+      edge_distance_threshold = 64 / 4;
+
+    edge_distance_threshold = FT_DivFix( edge_distance_threshold,
+                                         scale );
+
+    for ( seg = segments; seg < segment_limit; seg++ )
+    {
+      AF_Edge  found = 0;
+      FT_Int   ee;
+
+
+      if ( seg->height < segment_length_threshold )
+        continue;
+
+      /* A special case for serif edges: If they are smaller than */
+      /* 1.5 pixels we ignore them.                               */
+      if ( seg->serif )
+      {
+        FT_Pos  dist = seg->serif->pos - seg->pos;
+
+        if (dist < 0)
+          dist = -dist;
+
+        if (dist >= laxis->standard_width >> 1)
+        {
+          /* unlink this serif, it is too distant from its reference stem */
+          seg->serif = NULL;
+        }
+        else if ( 2*seg->height < 3 * segment_length_threshold )
+          continue;
+      }
+
+      /* look for an edge corresponding to the segment */
+      for ( ee = 0; ee < axis->num_edges; ee++ )
+      {
+        AF_Edge  edge = axis->edges + ee;
+        FT_Pos   dist;
+
+
+        dist = seg->pos - edge->fpos;
+        if ( dist < 0 )
+          dist = -dist;
+
+        if ( dist < edge_distance_threshold && edge->dir == seg->dir )
+        {
+          found = edge;
+          break;
+        }
+      }
+
+      if ( !found )
+      {
+        AF_Edge   edge;
+
+
+        /* 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 );
+        if ( error )
+          goto Exit;
+
+        /* add the segment to the new edge's list */
+        FT_ZERO( edge );
+
+        edge->first    = seg;
+        edge->last     = seg;
+        edge->fpos     = seg->pos;
+        edge->dir      = seg->dir;
+        edge->opos     = edge->pos = FT_MulFix( seg->pos, scale );
+        seg->edge_next = seg;
+      }
+      else
+      {
+        /* if an edge was found, simply add the segment to the edge's */
+        /* list                                                       */
+        seg->edge_next         = found->first;
+        found->last->edge_next = seg;
+        found->last            = seg;
+      }
+    }
+
+
+    /*********************************************************************/
+    /*                                                                   */
+    /* 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                                                  */
+    /*                                                                   */
+    /*********************************************************************/
+
+    /* 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;
+      AF_Edge  edge;
+
+
+      for ( edge = edges; edge < edge_limit; edge++ )
+      {
+        seg = edge->first;
+        if ( seg )
+          do
+          {
+            seg->edge = edge;
+            seg       = seg->edge_next;
+
+          } while ( seg != edge->first );
+      }
+
+      /* 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? */
+        FT_Pos  ups         = 0;  /* number of upwards segments         */
+        FT_Pos  downs       = 0;  /* number of downwards segments       */
+
+
+        seg = edge->first;
+
+        do
+        {
+          FT_Bool  is_serif;
+
+
+          /* check for roundness of segment */
+          if ( seg->flags & AF_EDGE_ROUND )
+            is_round++;
+          else
+            is_straight++;
+
+          /* check for segment direction */
+          if ( seg->dir == up_dir )
+            ups   += seg->max_coord-seg->min_coord;
+          else
+            downs += seg->max_coord-seg->min_coord;
+
+          /* check for links -- if seg->serif is set, then seg->link must */
+          /* be ignored                                                   */
+          is_serif = (FT_Bool)( seg->serif               &&
+                                seg->serif->edge         &&
+                                seg->serif->edge != edge );
+
+          if ( ( seg->link && seg->link->edge != NULL ) || is_serif )
+          {
+            AF_Edge     edge2;
+            AF_Segment  seg2;
+
+
+            edge2 = edge->link;
+            seg2  = seg->link;
+
+            if ( is_serif )
+            {
+              seg2  = seg->serif;
+              edge2 = edge->serif;
+            }
+
+            if ( edge2 )
+            {
+              FT_Pos  edge_delta;
+              FT_Pos  seg_delta;
+
+
+              edge_delta = edge->fpos - edge2->fpos;
+              if ( edge_delta < 0 )
+                edge_delta = -edge_delta;
+
+              seg_delta = seg->pos - seg2->pos;
+              if ( seg_delta < 0 )
+                seg_delta = -seg_delta;
+
+              if ( seg_delta < edge_delta )
+                edge2 = seg2->edge;
+            }
+            else
+              edge2 = seg2->edge;
+
+            if ( is_serif )
+            {
+              edge->serif   = edge2;
+              edge2->flags |= AF_EDGE_SERIF;
+            }
+            else
+              edge->link  = edge2;
+          }
+
+          seg = seg->edge_next;
+
+        } while ( seg != edge->first );
+
+        /* set the round/straight flags */
+        edge->flags = AF_EDGE_NORMAL;
+
+        if ( is_round > 0 && is_round >= is_straight )
+          edge->flags |= AF_EDGE_ROUND;
+
+#if 0
+        /* set the edge's main direction */
+        edge->dir = AF_DIR_NONE;
+
+        if ( ups > downs )
+          edge->dir = (FT_Char)up_dir;
+
+        else if ( ups < downs )
+          edge->dir = (FT_Char)-up_dir;
+
+        else if ( ups == downs )
+          edge->dir = 0;  /* both up and down! */
+#endif
+
+        /* gets rid of serifs if link is set                */
+        /* XXX: This gets rid of many unpleasant artefacts! */
+        /*      Example: the `c' in cour.pfa at size 13     */
+
+        if ( edge->serif && edge->link )
+          edge->serif = 0;
+      }
+    }
+
+  Exit:
+    return error;
+  }
+
+
+  FT_LOCAL_DEF( FT_Error )
+  af_latin2_hints_detect_features( AF_GlyphHints  hints,
+                                  AF_Dimension   dim )
+  {
+    FT_Error  error;
+
+
+    error = af_latin2_hints_compute_segments( hints, dim );
+    if ( !error )
+    {
+      af_latin2_hints_link_segments( hints, dim );
+
+      error = af_latin2_hints_compute_edges( hints, dim );
+    }
+    return error;
+  }
+
+
+  FT_LOCAL_DEF( void )
+  af_latin2_hints_compute_blue_edges( AF_GlyphHints    hints,
+                                     AF_LatinMetrics  metrics )
+  {
+    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 ];
+    FT_Fixed      scale      = latin->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 )
+      best_dist0 = 64 / 2;
+
+    /* compute which blue zones are active, i.e. have their scaled */
+    /* size < 3/4 pixels                                           */
+
+    /* 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 = best_dist0;
+
+      for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ )
+      {
+        AF_LatinBlue  blue = latin->blues + bb;
+        FT_Bool       is_top_blue, is_major_dir;
+
+
+        /* skip inactive blue zones (i.e., those that are too small) */
+        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 )
+        {
+          FT_Pos     dist;
+          AF_Width   compare;
+
+
+          /* if it's a rounded edge, compare it to the overshoot position */
+          /* if it's a flat edge, compare it to the reference position    */
+          if ( edge->flags & AF_EDGE_ROUND )
+            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 0
+          /* 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 )
+          {
+            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;
+
+              dist = FT_MulFix( dist, scale );
+              if ( dist < best_dist )
+              {
+                best_dist = dist;
+                best_blue = & blue->shoot;
+              }
+            }
+          }
+#endif
+        }
+      }
+
+      if ( best_blue )
+        edge->blue_edge = best_blue;
+    }
+  }
+
+
+  static FT_Error
+  af_latin2_hints_init( AF_GlyphHints    hints,
+                       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 );
+
+    /*
+     *  correct x_scale and y_scale if needed, since they may have
+     *  been modified `af_latin2_metrics_scale_dim' above
+     */
+    hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale;
+    hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta;
+    hints->y_scale = metrics->axis[AF_DIMENSION_VERT].scale;
+    hints->y_delta = metrics->axis[AF_DIMENSION_VERT].delta;
+
+    /* compute flags depending on render mode, etc. */
+    mode = metrics->root.scaler.render_mode;
+
+#if 0 /* #ifdef AF_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;
+    other_flags  = 0;
+
+    /*
+     *  We snap the width of vertical stems for the monochrome and
+     *  horizontal LCD rendering targets only.
+     */
+    if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD )
+      other_flags |= AF_LATIN_HINTS_HORZ_SNAP;
+
+    /*
+     *  We snap the width of horizontal stems for the monochrome and
+     *  vertical LCD rendering targets only.
+     */
+    if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD_V )
+      other_flags |= AF_LATIN_HINTS_VERT_SNAP;
+
+    /*
+     *  We adjust stems to full pixels only if we don't use the `light' mode.
+     */
+    if ( mode != FT_RENDER_MODE_LIGHT )
+      other_flags |= AF_LATIN_HINTS_STEM_ADJUST;
+
+    if ( mode == FT_RENDER_MODE_MONO )
+      other_flags |= AF_LATIN_HINTS_MONO;
+
+    /*
+     *  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 )
+      scaler_flags |= AF_SCALER_FLAG_NO_HORIZONTAL;
+
+    hints->scaler_flags = scaler_flags;
+    hints->other_flags  = other_flags;
+
+    return 0;
+  }
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****        L A T I N   G L Y P H   G R I D - F I T T I N G        *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /* snap a given width in scaled coordinates to one of the */
+  /* current standard widths                                */
+
+  static FT_Pos
+  af_latin2_snap_width( AF_Width  widths,
+                       FT_Int    count,
+                       FT_Pos    width )
+  {
+    int     n;
+    FT_Pos  best      = 64 + 32 + 2;
+    FT_Pos  reference = width;
+    FT_Pos  scaled;
+
+
+    for ( n = 0; n < count; n++ )
+    {
+      FT_Pos  w;
+      FT_Pos  dist;
+
+
+      w = widths[n].cur;
+      dist = width - w;
+      if ( dist < 0 )
+        dist = -dist;
+      if ( dist < best )
+      {
+        best      = dist;
+        reference = w;
+      }
+    }
+
+    scaled = FT_PIX_ROUND( reference );
+
+    if ( width >= reference )
+    {
+      if ( width < scaled + 48 )
+        width = reference;
+    }
+    else
+    {
+      if ( width > scaled - 48 )
+        width = reference;
+    }
+
+    return width;
+  }
+
+
+  /* compute the snapped width of a given stem */
+
+  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_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 );
+
+
+    FT_UNUSED(base_flags);
+
+    if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) ||
+          axis->extra_light                      )
+      return width;
+
+    if ( dist < 0 )
+    {
+      dist = -width;
+      sign = 1;
+    }
+
+    if ( (  vertical && !AF_LATIN_HINTS_DO_VERT_SNAP( hints ) ) ||
+         ( !vertical && !AF_LATIN_HINTS_DO_HORZ_SNAP( hints ) ) )
+    {
+      /* 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 ) )
+        goto Done_Width;
+
+#if 0
+      else if ( ( base_flags & AF_EDGE_ROUND ) )
+      {
+        if ( dist < 80 )
+          dist = 64;
+      }
+      else if ( dist < 56 )
+        dist = 56;
+#endif
+      if ( axis->width_count > 0 )
+      {
+        FT_Pos  delta;
+
+
+        /* compare to standard width */
+        if ( axis->width_count > 0 )
+        {
+          delta = dist - axis->widths[0].cur;
+
+          if ( delta < 0 )
+            delta = -delta;
+
+          if ( delta < 40 )
+          {
+            dist = axis->widths[0].cur;
+            if ( dist < 48 )
+              dist = 48;
+
+            goto Done_Width;
+          }
+        }
+
+        if ( dist < 3 * 64 )
+        {
+          delta  = dist & 63;
+          dist  &= -64;
+
+          if ( delta < 10 )
+            dist += delta;
+
+          else if ( delta < 32 )
+            dist += 10;
+
+          else if ( delta < 54 )
+            dist += 54;
+
+          else
+            dist += delta;
+        }
+        else
+          dist = ( dist + 32 ) & ~63;
+      }
+    }
+    else
+    {
+      /* strong hinting process: snap the stem width to integer pixels */
+      FT_Pos  org_dist = dist;
+
+
+      dist = af_latin2_snap_width( axis->widths, axis->width_count, dist );
+
+      if ( vertical )
+      {
+        /* in the case of vertical hinting, always round */
+        /* the stem heights to integer pixels            */
+
+        if ( dist >= 64 )
+          dist = ( dist + 16 ) & ~63;
+        else
+          dist = 64;
+      }
+      else
+      {
+        if ( AF_LATIN_HINTS_DO_MONO( hints ) )
+        {
+          /* monochrome horizontal hinting: snap widths to integer pixels */
+          /* with a different threshold                                   */
+
+          if ( dist < 64 )
+            dist = 64;
+          else
+            dist = ( dist + 32 ) & ~63;
+        }
+        else
+        {
+          /* for horizontal anti-aliased hinting, we adopt a more subtle */
+          /* approach: we strengthen small stems, round stems whose size */
+          /* is between 1 and 2 pixels to an integer, otherwise nothing  */
+
+          if ( dist < 48 )
+            dist = ( dist + 64 ) >> 1;
+
+          else if ( dist < 128 )
+          {
+            /* We only round to an integer width if the corresponding */
+            /* distortion is less than 1/4 pixel.  Otherwise this     */
+            /* makes everything worse since the diagonals, which are  */
+            /* not hinted, appear a lot bolder or thinner than the    */
+            /* vertical stems.                                        */
+
+            FT_Int  delta;
+
+
+            dist = ( dist + 22 ) & ~63;
+            delta = dist - org_dist;
+            if ( delta < 0 )
+              delta = -delta;
+
+            if (delta >= 16)
+            {
+              dist = org_dist;
+              if ( dist < 48 )
+                dist = ( dist + 64 ) >> 1;
+            }
+          }
+          else
+            /* round otherwise to prevent color fringes in LCD mode */
+            dist = ( dist + 32 ) & ~63;
+        }
+      }
+    }
+
+  Done_Width:
+    if ( sign )
+      dist = -dist;
+
+    return dist;
+  }
+
+
+  /* align one stem edge relative to the previous stem edge */
+
+  static void
+  af_latin2_align_linked_edge( AF_GlyphHints  hints,
+                              AF_Dimension   dim,
+                              AF_Edge        base_edge,
+                              AF_Edge        stem_edge )
+  {
+    FT_Pos  dist = stem_edge->opos - base_edge->opos;
+
+    FT_Pos  fitted_width = af_latin2_compute_stem_width(
+                             hints, dim, dist,
+                             (AF_Edge_Flags)base_edge->flags,
+                             (AF_Edge_Flags)stem_edge->flags );
+
+
+    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 ));
+  }
+
+
+  static void
+  af_latin2_align_serif_edge( AF_GlyphHints  hints,
+                             AF_Edge        base,
+                             AF_Edge        serif )
+  {
+    FT_UNUSED( hints );
+
+    serif->pos = base->pos + (serif->opos - base->opos);
+  }
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+  /****                                                                 ****/
+  /****                    E D G E   H I N T I N G                      ****/
+  /****                                                                 ****/
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+
+
+  FT_LOCAL_DEF( void )
+  af_latin2_hint_edges( AF_GlyphHints  hints,
+                       AF_Dimension   dim )
+  {
+    AF_AxisHints  axis       = &hints->axis[dim];
+    AF_Edge       edges      = axis->edges;
+    AF_Edge       edge_limit = edges + axis->num_edges;
+    FT_Int        n_edges;
+    AF_Edge       edge;
+    AF_Edge       anchor     = 0;
+    FT_Int        has_serifs = 0;
+    FT_Pos        anchor_drift = 0;
+
+
+
+    AF_LOG(( "==== 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            */
+
+    if ( dim == AF_DIMENSION_VERT && 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;
+
+        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 ));
+
+        edge1->pos    = blue->fit;
+        edge1->flags |= AF_EDGE_DONE;
+
+        if ( edge2 && !edge2->blue_edge )
+        {
+          af_latin2_align_linked_edge( hints, dim, edge1, edge2 );
+          edge2->flags |= AF_EDGE_DONE;
+        }
+
+        if ( !anchor )
+        {
+          anchor = edge;
+
+          anchor_drift = (anchor->pos - anchor->opos);
+          if (edge2)
+            anchor_drift = (anchor_drift + (edge2->pos - edge2->opos)) >> 1;
+        }
+      }
+    }
+
+    /* now we will align all stem edges, trying to maintain the */
+    /* relative order of stems in the glyph                     */
+    for ( edge = edges; edge < edge_limit; edge++ )
+    {
+      AF_Edge  edge2;
+
+
+      if ( edge->flags & AF_EDGE_DONE )
+        continue;
+
+      /* skip all non-stem edges */
+      edge2 = edge->link;
+      if ( !edge2 )
+      {
+        has_serifs++;
+        continue;
+      }
+
+      /* now align the stem */
+
+      /* 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 ));
+
+        af_latin2_align_linked_edge( hints, dim, edge2, edge );
+        edge->flags |= AF_EDGE_DONE;
+        continue;
+      }
+
+      if ( !anchor )
+      {
+        FT_Pos  org_len, org_center, cur_len;
+        FT_Pos  cur_pos1, error1, error2, u_off, d_off;
+
+
+        org_len = edge2->opos - edge->opos;
+        cur_len = af_latin2_compute_stem_width(
+                    hints, dim, org_len,
+                    (AF_Edge_Flags)edge->flags,
+                    (AF_Edge_Flags)edge2->flags );
+        if ( cur_len <= 64 )
+          u_off = d_off = 32;
+        else
+        {
+          u_off = 38;
+          d_off = 26;
+        }
+
+        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 );
+          if ( error1 < 0 )
+            error1 = -error1;
+
+          error2 = org_center - ( cur_pos1 + d_off );
+          if ( error2 < 0 )
+            error2 = -error2;
+
+          if ( error1 < error2 )
+            cur_pos1 -= u_off;
+          else
+            cur_pos1 += d_off;
+
+          edge->pos  = cur_pos1 - cur_len / 2;
+          edge2->pos = edge->pos + cur_len;
+        }
+        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;
+
+        edge->flags |= AF_EDGE_DONE;
+
+        af_latin2_align_linked_edge( hints, dim, edge, edge2 );
+
+        edge2->flags |= AF_EDGE_DONE;
+
+        anchor_drift = ( (anchor->pos - anchor->opos) +
+                         (edge2->pos - edge2->opos)) >> 1;
+
+        AF_LOG(( "DRIFT: %.2f\n", anchor_drift/64.0 ));
+      }
+      else
+      {
+        FT_Pos   org_pos, org_len, org_center, cur_center, cur_len;
+        FT_Pos   org_left, org_right;
+
+
+        org_pos    = edge->opos + anchor_drift;
+        org_len    = edge2->opos - edge->opos;
+        org_center = org_pos + ( org_len >> 1 );
+
+        cur_len = af_latin2_compute_stem_width(
+                   hints, dim, org_len,
+                   (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);
+
+        AF_LOG(( "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" ));
+          edge->pos = edge2->pos - cur_len;
+        }
+        else
+        {
+         /* we want to compare several displacement, and choose
+          * the one that increases fitness while minimizing
+          * distortion as well
+          */
+          FT_Pos   displacements[6], scores[6], org, fit, delta;
+          FT_UInt  count = 0;
+
+          /* note: don't even try to fit tiny stems */
+          if ( cur_len < 32 )
+          {
+            AF_LOG(( "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) )
+          {
+            AF_LOG(( "single pixel stem\n" ));
+            goto AlignStem;
+          }
+
+          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
+            * about 50% of the gray. we'd better want to change this
+            * 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;
+
+            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);
+              displacements[count] = fit - org;
+              scores[count++]      = delta;
+              AF_LOG(( "dispA=%.2f (%d) ", (fit - org)/64.0, delta ));
+
+              org = frac_right;
+              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 ));
+            }
+          }
+
+          /* snapping the left edge to the grid */
+          org   = org_left;
+          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 ));
+
+          /* snapping the right edge to the grid */
+          org   = org_right;
+          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 ));
+
+          /* now find the best displacement */
+          {
+            FT_Pos  best_score = scores[0];
+            FT_Pos  best_disp  = displacements[0];
+            FT_UInt nn;
+
+            for (nn = 1; nn < count; nn++)
+            {
+              if (scores[nn] < best_score)
+              {
+                best_score = scores[nn];
+                best_disp  = displacements[nn];
+              }
+            }
+
+            cur_center = org_center + best_disp;
+          }
+          AF_LOG(( "\n" ));
+        }
+
+      AlignStem:
+        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 ));
+
+        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 ));
+          edge->pos = edge[-1].pos;
+        }
+      }
+    }
+
+    /* make sure that lowercase m's maintain their symmetry */
+
+    /* In general, lowercase m's have six vertical edges if they are sans */
+    /* serif, or twelve if they are with serifs.  This implementation is  */
+    /* based on that assumption, and seems to work very well with most    */
+    /* faces.  However, if for a certain face this assumption is not      */
+    /* true, the m is just rendered like before.  In addition, any stem   */
+    /* correction will only be applied to symmetrical glyphs (even if the */
+    /* glyph is not an m), so the potential for unwanted distortion is    */
+    /* relatively low.                                                    */
+
+    /* We don't handle horizontal edges since we can't easily assure that */
+    /* the third (lowest) stem aligns with the base line; it might end up */
+    /* one pixel higher or lower.                                         */
+#if 0
+    n_edges = edge_limit - edges;
+    if ( dim == AF_DIMENSION_HORZ && ( n_edges == 6 || n_edges == 12 ) )
+    {
+      AF_Edge  edge1, edge2, edge3;
+      FT_Pos   dist1, dist2, span, delta;
+
+
+      if ( n_edges == 6 )
+      {
+        edge1 = edges;
+        edge2 = edges + 2;
+        edge3 = edges + 4;
+      }
+      else
+      {
+        edge1 = edges + 1;
+        edge2 = edges + 5;
+        edge3 = edges + 9;
+      }
+
+      dist1 = edge2->opos - edge1->opos;
+      dist2 = edge3->opos - edge2->opos;
+
+      span = dist1 - dist2;
+      if ( span < 0 )
+        span = -span;
+
+      if ( span < 8 )
+      {
+        delta = edge3->pos - ( 2 * edge2->pos - edge1->pos );
+        edge3->pos -= delta;
+        if ( edge3->link )
+          edge3->link->pos -= delta;
+
+        /* move the serifs along with the stem */
+        if ( n_edges == 12 )
+        {
+          ( edges + 8 )->pos -= delta;
+          ( edges + 11 )->pos -= delta;
+        }
+
+        edge3->flags |= AF_EDGE_DONE;
+        if ( edge3->link )
+          edge3->link->flags |= AF_EDGE_DONE;
+      }
+    }
+#endif
+    if ( has_serifs || !anchor )
+    {
+      /*
+       *  now hint the remaining edges (serifs and single) in order
+       *  to complete our processing
+       */
+      for ( edge = edges; edge < edge_limit; edge++ )
+      {
+        FT_Pos  delta;
+
+
+        if ( edge->flags & AF_EDGE_DONE )
+          continue;
+
+        delta = 1000;
+
+        if ( edge->serif )
+        {
+          delta = edge->serif->opos - edge->opos;
+          if ( delta < 0 )
+            delta = -delta;
+        }
+
+        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 ));
+        }
+        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;
+        }
+        else
+        {
+          AF_Edge  before, after;
+
+
+          for ( before = edge - 1; before >= edges; before-- )
+            if ( before->flags & AF_EDGE_DONE )
+              break;
+
+          for ( after = edge + 1; after < edge_limit; after++ )
+            if ( after->flags & AF_EDGE_DONE )
+              break;
+
+          if ( before >= edges && before < edge   &&
+               after < edge_limit && after > edge )
+          {
+            edge->pos = before->pos +
+                          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 ));
+          }
+          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 ));
+          }
+        }
+
+        edge->flags |= AF_EDGE_DONE;
+
+        if ( edge > edges && edge->pos < edge[-1].pos )
+          edge->pos = edge[-1].pos;
+
+        if ( edge + 1 < edge_limit        &&
+             edge[1].flags & AF_EDGE_DONE &&
+             edge->pos > edge[1].pos      )
+          edge->pos = edge[1].pos;
+      }
+    }
+  }
+
+
+  static FT_Error
+  af_latin2_hints_apply( AF_GlyphHints    hints,
+                        FT_Outline*      outline,
+                        AF_LatinMetrics  metrics )
+  {
+    FT_Error  error;
+    int       dim;
+
+
+    error = af_glyph_hints_reload( hints, outline, 1 );
+    if ( error )
+      goto Exit;
+
+    /* analyze glyph outline */
+#ifdef AF_USE_WARPER
+    if ( metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ||
+         AF_HINTS_DO_HORIZONTAL( hints ) )
+#else
+    if ( AF_HINTS_DO_HORIZONTAL( hints ) )
+#endif
+    {
+      error = af_latin2_hints_detect_features( hints, AF_DIMENSION_HORZ );
+      if ( error )
+        goto Exit;
+    }
+
+    if ( AF_HINTS_DO_VERTICAL( hints ) )
+    {
+      error = af_latin2_hints_detect_features( hints, AF_DIMENSION_VERT );
+      if ( error )
+        goto Exit;
+
+      af_latin2_hints_compute_blue_edges( hints, metrics );
+    }
+
+    /* 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 ) )
+      {
+        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 );
+        continue;
+      }
+#endif
+
+      if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) ||
+           ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) )   )
+      {
+        af_latin2_hint_edges( hints, (AF_Dimension)dim );
+        af_glyph_hints_align_edge_points( hints, (AF_Dimension)dim );
+        af_glyph_hints_align_strong_points( hints, (AF_Dimension)dim );
+        af_glyph_hints_align_weak_points( hints, (AF_Dimension)dim );
+      }
+    }
+    af_glyph_hints_save( hints, outline );
+
+  Exit:
+    return error;
+  }
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****              L A T I N   S C R I P T   C L A S S              *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+
+  static const AF_Script_UniRangeRec  af_latin2_uniranges[] =
+  {
+    { 32,  127 },    /* XXX: TODO: Add new Unicode ranges here! */
+    { 160, 255 },
+    { 0,   0 }
+  };
+
+
+  FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec
+  af_latin2_script_class =
+  {
+    AF_SCRIPT_LATIN2,
+    af_latin2_uniranges,
+
+    sizeof( AF_LatinMetricsRec ),
+
+    (AF_Script_InitMetricsFunc) af_latin2_metrics_init,
+    (AF_Script_ScaleMetricsFunc)af_latin2_metrics_scale,
+    (AF_Script_DoneMetricsFunc) NULL,
+
+    (AF_Script_InitHintsFunc)   af_latin2_hints_init,
+    (AF_Script_ApplyHintsFunc)  af_latin2_hints_apply
+  };
+
+
+/* END */
diff --git a/src/autofit/aflatin2.h b/src/autofit/aflatin2.h
new file mode 100644
index 0000000..34eda05
--- /dev/null
+++ b/src/autofit/aflatin2.h
@@ -0,0 +1,40 @@
+/***************************************************************************/
+/*                                                                         */
+/*  aflatin2.h                                                             */
+/*                                                                         */
+/*    Auto-fitter hinting routines for latin script (specification).       */
+/*                                                                         */
+/*  Copyright 2003, 2004, 2005, 2006, 2007 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 __AFLATIN2_H__
+#define __AFLATIN2_H__
+
+#include "afhints.h"
+
+
+FT_BEGIN_HEADER
+
+
+  /* the latin-specific script class */
+
+  FT_CALLBACK_TABLE const AF_ScriptClassRec
+  af_latin2_script_class;
+
+/* */
+
+FT_END_HEADER
+
+#endif /* __AFLATIN_H__ */
+
+
+/* END */
diff --git a/src/autofit/afloader.c b/src/autofit/afloader.c
new file mode 100644
index 0000000..4e48c2f
--- /dev/null
+++ b/src/autofit/afloader.c
@@ -0,0 +1,535 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afloader.c                                                             */
+/*                                                                         */
+/*    Auto-fitter glyph loading routines (body).                           */
+/*                                                                         */
+/*  Copyright 2003, 2004, 2005, 2006, 2007, 2008 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 "afloader.h"
+#include "afhints.h"
+#include "afglobal.h"
+#include "aflatin.h"
+#include "aferrors.h"
+
+
+  FT_LOCAL_DEF( FT_Error )
+  af_loader_init( AF_Loader  loader,
+                  FT_Memory  memory )
+  {
+    FT_ZERO( loader );
+
+    af_glyph_hints_init( &loader->hints, memory );
+#ifdef AF_DEBUG
+    _af_debug_hints = &loader->hints;
+#endif
+    return FT_GlyphLoader_New( memory, &loader->gloader );
+  }
+
+
+  FT_LOCAL_DEF( FT_Error )
+  af_loader_reset( AF_Loader  loader,
+                   FT_Face    face )
+  {
+    FT_Error  error = AF_Err_Ok;
+
+
+    loader->face    = face;
+    loader->globals = (AF_FaceGlobals)face->autohint.data;
+
+    FT_GlyphLoader_Rewind( loader->gloader );
+
+    if ( loader->globals == NULL )
+    {
+      error = af_face_globals_new( face, &loader->globals );
+      if ( !error )
+      {
+        face->autohint.data =
+          (FT_Pointer)loader->globals;
+        face->autohint.finalizer =
+          (FT_Generic_Finalizer)af_face_globals_free;
+      }
+    }
+
+    return error;
+  }
+
+
+  FT_LOCAL_DEF( void )
+  af_loader_done( AF_Loader  loader )
+  {
+    af_glyph_hints_done( &loader->hints );
+
+    loader->face    = NULL;
+    loader->globals = NULL;
+
+#ifdef AF_DEBUG
+    _af_debug_hints = NULL;
+#endif
+    FT_GlyphLoader_Done( loader->gloader );
+    loader->gloader = NULL;
+  }
+
+
+  static FT_Error
+  af_loader_load_g( AF_Loader  loader,
+                    AF_Scaler  scaler,
+                    FT_UInt    glyph_index,
+                    FT_Int32   load_flags,
+                    FT_UInt    depth )
+  {
+    FT_Error          error;
+    FT_Face           face     = loader->face;
+    FT_GlyphLoader    gloader  = loader->gloader;
+    AF_ScriptMetrics  metrics  = loader->metrics;
+    AF_GlyphHints     hints    = &loader->hints;
+    FT_GlyphSlot      slot     = face->glyph;
+    FT_Slot_Internal  internal = slot->internal;
+
+
+    error = FT_Load_Glyph( face, glyph_index, load_flags );
+    if ( error )
+      goto Exit;
+
+    loader->transformed = internal->glyph_transformed;
+    if ( loader->transformed )
+    {
+      FT_Matrix  inverse;
+
+
+      loader->trans_matrix = internal->glyph_matrix;
+      loader->trans_delta  = internal->glyph_delta;
+
+      inverse = loader->trans_matrix;
+      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:
+      /* translate the loaded glyph when an internal transform is needed */
+      if ( loader->transformed )
+        FT_Outline_Translate( &slot->outline,
+                              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 */
+      error = FT_GLYPHLOADER_CHECK_POINTS( gloader,
+                                           slot->outline.n_points + 4,
+                                           slot->outline.n_contours );
+      if ( error )
+        goto Exit;
+
+      FT_ARRAY_COPY( gloader->current.outline.points,
+                     slot->outline.points,
+                     slot->outline.n_points );
+
+      FT_ARRAY_COPY( gloader->current.outline.contours,
+                     slot->outline.contours,
+                     slot->outline.n_contours );
+
+      FT_ARRAY_COPY( gloader->current.outline.tags,
+                     slot->outline.tags,
+                     slot->outline.n_points );
+
+      gloader->current.outline.n_points   = slot->outline.n_points;
+      gloader->current.outline.n_contours = slot->outline.n_contours;
+
+      /* compute original horizontal phantom points (and ignore */
+      /* vertical ones)                                         */
+      loader->pp1.x = hints->x_delta;
+      loader->pp1.y = hints->y_delta;
+      loader->pp2.x = FT_MulFix( slot->metrics.horiAdvance,
+                                 hints->x_scale ) + hints->x_delta;
+      loader->pp2.y = hints->y_delta;
+
+      /* be sure to check for spacing glyphs */
+      if ( slot->outline.n_points == 0 )
+        goto Hint_Metrics;
+
+      /* 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 );
+
+      /* we now need to hint 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;
+        FT_Pos        pp1x_uh, pp2x_uh;
+        AF_AxisHints  axis  = &hints->axis[AF_DIMENSION_HORZ];
+        AF_Edge       edge1 = axis->edges;         /* leftmost edge  */
+        AF_Edge       edge2 = edge1 +
+                              axis->num_edges - 1; /* rightmost edge */
+
+
+        if ( axis->num_edges > 1 && AF_HINTS_DO_ADVANCE( hints ) )
+        {
+          old_rsb     = loader->pp2.x - edge2->opos;
+          old_lsb     = edge1->opos;
+          new_lsb     = edge1->pos;
+
+          /* remember unhinted values to later account */
+          /* for rounding errors                       */
+
+          pp1x_uh = new_lsb    - old_lsb;
+          pp2x_uh = edge2->pos + old_rsb;
+
+          /* prefer too much space over too little space */
+          /* for very small sizes                        */
+
+          if ( old_lsb < 24 )
+            pp1x_uh -= 8;
+
+          if ( old_rsb < 24 )
+            pp2x_uh += 8;
+
+          loader->pp1.x = FT_PIX_ROUND( pp1x_uh );
+          loader->pp2.x = FT_PIX_ROUND( pp2x_uh );
+
+          if ( loader->pp1.x >= new_lsb && old_lsb > 0 )
+            loader->pp1.x -= 64;
+
+          if ( loader->pp2.x <= edge2->pos && old_rsb > 0 )
+            loader->pp2.x += 64;
+
+          slot->lsb_delta = loader->pp1.x - pp1x_uh;
+          slot->rsb_delta = loader->pp2.x - pp2x_uh;
+        }
+        else
+        {
+          FT_Pos   pp1x = loader->pp1.x;
+          FT_Pos   pp2x = loader->pp2.x;
+
+          loader->pp1.x = FT_PIX_ROUND( pp1x );
+          loader->pp2.x = FT_PIX_ROUND( pp2x );
+
+          slot->lsb_delta = loader->pp1.x - pp1x;
+          slot->rsb_delta = loader->pp2.x - pp2x;
+        }
+      }
+      else
+      {
+        FT_Pos   pp1x = loader->pp1.x;
+        FT_Pos   pp2x = loader->pp2.x;
+
+        loader->pp1.x = FT_PIX_ROUND( pp1x + hints->xmin_delta );
+        loader->pp2.x = FT_PIX_ROUND( pp2x + hints->xmax_delta );
+
+        slot->lsb_delta = loader->pp1.x - pp1x;
+        slot->rsb_delta = loader->pp2.x - pp2x;
+      }
+
+      /* good, we simply add the glyph to our loader's base */
+      FT_GlyphLoader_Add( gloader );
+      break;
+
+    case FT_GLYPH_FORMAT_COMPOSITE:
+      {
+        FT_UInt      nn, num_subglyphs = slot->num_subglyphs;
+        FT_UInt      num_base_subgs, start_point;
+        FT_SubGlyph  subglyph;
+
+
+        start_point = gloader->base.outline.n_points;
+
+        /* first of all, copy the subglyph descriptors in the glyph loader */
+        error = FT_GlyphLoader_CheckSubGlyphs( gloader, num_subglyphs );
+        if ( error )
+          goto Exit;
+
+        FT_ARRAY_COPY( gloader->current.subglyphs,
+                       slot->subglyphs,
+                       num_subglyphs );
+
+        gloader->current.num_subglyphs = num_subglyphs;
+        num_base_subgs                 = gloader->base.num_subglyphs;
+
+        /* now, read each subglyph independently */
+        for ( nn = 0; nn < num_subglyphs; nn++ )
+        {
+          FT_Vector  pp1, pp2;
+          FT_Pos     x, y;
+          FT_UInt    num_points, num_new_points, num_base_points;
+
+
+          /* gloader.current.subglyphs can change during glyph loading due */
+          /* to re-allocation -- we must recompute the current subglyph on */
+          /* each iteration                                                */
+          subglyph = gloader->base.subglyphs + num_base_subgs + nn;
+
+          pp1 = loader->pp1;
+          pp2 = loader->pp2;
+
+          num_base_points = gloader->base.outline.n_points;
+
+          error = af_loader_load_g( loader, scaler, subglyph->index,
+                                    load_flags, depth + 1 );
+          if ( error )
+            goto Exit;
+
+          /* 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
+          {
+            loader->pp1 = pp1;
+            loader->pp2 = pp2;
+          }
+
+          num_points     = gloader->base.outline.n_points;
+          num_new_points = num_points - num_base_points;
+
+          /* now perform the transform required for this subglyph */
+
+          if ( subglyph->flags & ( FT_SUBGLYPH_FLAG_SCALE    |
+                                   FT_SUBGLYPH_FLAG_XY_SCALE |
+                                   FT_SUBGLYPH_FLAG_2X2      ) )
+          {
+            FT_Vector*  cur   = gloader->base.outline.points +
+                                num_base_points;
+            FT_Vector*  limit = cur + num_new_points;
+
+
+            for ( ; cur < limit; cur++ )
+              FT_Vector_Transform( cur, &subglyph->transform );
+          }
+
+          /* apply offset */
+
+          if ( !( subglyph->flags & FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES ) )
+          {
+            FT_Int      k = subglyph->arg1;
+            FT_UInt     l = subglyph->arg2;
+            FT_Vector*  p1;
+            FT_Vector*  p2;
+
+
+            if ( start_point + k >= num_base_points         ||
+                               l >= (FT_UInt)num_new_points )
+            {
+              error = AF_Err_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 */
+            p1 = gloader->base.outline.points + start_point + k;
+            p2 = gloader->base.outline.points + start_point + l;
+
+            x = p1->x - p2->x;
+            y = p1->y - p2->y;
+          }
+          else
+          {
+            x = FT_MulFix( subglyph->arg1, hints->x_scale ) + hints->x_delta;
+            y = FT_MulFix( subglyph->arg2, hints->y_scale ) + hints->y_delta;
+
+            x = FT_PIX_ROUND( x );
+            y = FT_PIX_ROUND( y );
+          }
+
+          {
+            FT_Outline  dummy = gloader->base.outline;
+
+
+            dummy.points  += num_base_points;
+            dummy.n_points = (short)num_new_points;
+
+            FT_Outline_Translate( &dummy, x, y );
+          }
+        }
+      }
+      break;
+
+    default:
+      /* we don't support other formats (yet?) */
+      error = AF_Err_Unimplemented_Feature;
+    }
+
+  Hint_Metrics:
+    if ( depth == 0 )
+    {
+      FT_BBox    bbox;
+      FT_Vector  vvector;
+
+
+      vvector.x = slot->metrics.vertBearingX - slot->metrics.horiBearingX;
+      vvector.y = slot->metrics.vertBearingY - slot->metrics.horiBearingY;
+      vvector.x = FT_MulFix( vvector.x, metrics->scaler.x_scale );
+      vvector.y = FT_MulFix( vvector.y, metrics->scaler.y_scale );
+
+      /* transform the hinted outline if needed */
+      if ( loader->transformed )
+      {
+        FT_Outline_Transform( &gloader->base.outline, &loader->trans_matrix );
+        FT_Vector_Transform( &vvector, &loader->trans_matrix );
+      }
+#if 1
+      /* we must translate our final outline by -pp1.x and compute */
+      /* the new metrics                                           */
+      if ( loader->pp1.x )
+        FT_Outline_Translate( &gloader->base.outline, -loader->pp1.x, 0 );
+#endif
+      FT_Outline_Get_CBox( &gloader->base.outline, &bbox );
+
+      bbox.xMin = FT_PIX_FLOOR( bbox.xMin );
+      bbox.yMin = FT_PIX_FLOOR( bbox.yMin );
+      bbox.xMax = FT_PIX_CEIL(  bbox.xMax );
+      bbox.yMax = FT_PIX_CEIL(  bbox.yMax );
+
+      slot->metrics.width        = bbox.xMax - bbox.xMin;
+      slot->metrics.height       = bbox.yMax - bbox.yMin;
+      slot->metrics.horiBearingX = bbox.xMin;
+      slot->metrics.horiBearingY = bbox.yMax;
+
+      slot->metrics.vertBearingX = FT_PIX_FLOOR( bbox.xMin + vvector.x );
+      slot->metrics.vertBearingY = FT_PIX_FLOOR( bbox.yMax + vvector.y );
+
+      /* for mono-width fonts (like Andale, Courier, etc.) we need */
+      /* to keep the original rounded advance width                */
+#if 0
+      if ( !FT_IS_FIXED_WIDTH( slot->face ) )
+        slot->metrics.horiAdvance = loader->pp2.x - loader->pp1.x;
+      else
+        slot->metrics.horiAdvance = FT_MulFix( slot->metrics.horiAdvance,
+                                               x_scale );
+#else
+      if ( !FT_IS_FIXED_WIDTH( slot->face ) )
+      {
+        /* non-spacing glyphs must stay as-is */
+        if ( slot->metrics.horiAdvance )
+          slot->metrics.horiAdvance = loader->pp2.x - loader->pp1.x;
+      }
+      else
+      {
+        slot->metrics.horiAdvance = FT_MulFix( slot->metrics.horiAdvance,
+                                               metrics->scaler.x_scale );
+
+        /* Set delta values to 0.  Otherwise code that uses them is */
+        /* going to ruin the fixed advance width.                   */
+        slot->lsb_delta = 0;
+        slot->rsb_delta = 0;
+      }
+#endif
+
+      slot->metrics.vertAdvance = FT_MulFix( slot->metrics.vertAdvance,
+                                              metrics->scaler.y_scale );
+
+      slot->metrics.horiAdvance = FT_PIX_ROUND( slot->metrics.horiAdvance );
+      slot->metrics.vertAdvance = FT_PIX_ROUND( slot->metrics.vertAdvance );
+
+      /* now copy outline into glyph slot */
+      FT_GlyphLoader_Rewind( internal->loader );
+      error = FT_GlyphLoader_CopyPoints( internal->loader, gloader );
+      if ( error )
+        goto Exit;
+
+      slot->outline = internal->loader->base.outline;
+      slot->format  = FT_GLYPH_FORMAT_OUTLINE;
+    }
+
+#ifdef DEBUG_HINTER
+    af_debug_hinter = hinter;
+#endif
+
+  Exit:
+    return error;
+  }
+
+
+  FT_LOCAL_DEF( FT_Error )
+  af_loader_load_glyph( AF_Loader  loader,
+                        FT_Face    face,
+                        FT_UInt    gindex,
+                        FT_UInt32  load_flags )
+  {
+    FT_Error      error;
+    FT_Size       size = face->size;
+    AF_ScalerRec  scaler;
+
+
+    if ( !size )
+      return AF_Err_Invalid_Argument;
+
+    FT_ZERO( &scaler );
+
+    scaler.face    = face;
+    scaler.x_scale = size->metrics.x_scale;
+    scaler.x_delta = 0;  /* XXX: TODO: add support for sub-pixel hinting */
+    scaler.y_scale = size->metrics.y_scale;
+    scaler.y_delta = 0;  /* XXX: TODO: add support for sub-pixel hinting */
+
+    scaler.render_mode = FT_LOAD_TARGET_MODE( load_flags );
+    scaler.flags       = 0;  /* XXX: fix this */
+
+    error = af_loader_reset( loader, face );
+    if ( !error )
+    {
+      AF_ScriptMetrics  metrics;
+      FT_UInt           options = 0;
+
+
+#ifdef FT_OPTION_AUTOFIT2
+      /* XXX: undocumented hook to activate the latin2 hinter */
+      if ( load_flags & ( 1UL << 20 ) )
+        options = 2;
+#endif
+
+      error = af_face_globals_get_metrics( loader->globals, gindex,
+                                           options, &metrics );
+      if ( !error )
+      {
+        loader->metrics = metrics;
+
+        if ( metrics->clazz->script_metrics_scale )
+          metrics->clazz->script_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 )
+        {
+          error = metrics->clazz->script_hints_init( &loader->hints,
+                                                     metrics );
+          if ( error )
+            goto Exit;
+        }
+
+        error = af_loader_load_g( loader, &scaler, gindex, load_flags, 0 );
+      }
+    }
+  Exit:
+    return error;
+  }
+
+
+/* END */
diff --git a/src/autofit/afloader.h b/src/autofit/afloader.h
new file mode 100644
index 0000000..fa67c10
--- /dev/null
+++ b/src/autofit/afloader.h
@@ -0,0 +1,73 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afloader.h                                                             */
+/*                                                                         */
+/*    Auto-fitter glyph loading routines (specification).                  */
+/*                                                                         */
+/*  Copyright 2003, 2004, 2005 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 __AF_LOADER_H__
+#define __AF_LOADER_H__
+
+#include "afhints.h"
+#include "afglobal.h"
+
+
+FT_BEGIN_HEADER
+
+  typedef struct AF_LoaderRec_
+  {
+    FT_Face           face;           /* current face */
+    AF_FaceGlobals    globals;        /* current face globals */
+    FT_GlyphLoader    gloader;        /* glyph loader */
+    AF_GlyphHintsRec  hints;
+    AF_ScriptMetrics  metrics;
+    FT_Bool           transformed;
+    FT_Matrix         trans_matrix;
+    FT_Vector         trans_delta;
+    FT_Vector         pp1;
+    FT_Vector         pp2;
+    /* we don't handle vertical phantom points */
+
+  } AF_LoaderRec, *AF_Loader;
+
+
+  FT_LOCAL( FT_Error )
+  af_loader_init( AF_Loader  loader,
+                  FT_Memory  memory );
+
+
+  FT_LOCAL( FT_Error )
+  af_loader_reset( AF_Loader  loader,
+                   FT_Face    face );
+
+
+  FT_LOCAL( void )
+  af_loader_done( AF_Loader  loader );
+
+
+  FT_LOCAL( FT_Error )
+  af_loader_load_glyph( AF_Loader  loader,
+                        FT_Face    face,
+                        FT_UInt    gindex,
+                        FT_UInt32  load_flags );
+
+/* */
+
+
+FT_END_HEADER
+
+#endif /* __AF_LOADER_H__ */
+
+
+/* END */
diff --git a/src/autofit/afmodule.c b/src/autofit/afmodule.c
new file mode 100644
index 0000000..cd5e1cc
--- /dev/null
+++ b/src/autofit/afmodule.c
@@ -0,0 +1,97 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afmodule.c                                                             */
+/*                                                                         */
+/*    Auto-fitter module implementation (body).                            */
+/*                                                                         */
+/*  Copyright 2003, 2004, 2005, 2006 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 "afmodule.h"
+#include "afloader.h"
+
+#ifdef AF_DEBUG
+  int    _af_debug;
+  int    _af_debug_disable_horz_hints;
+  int    _af_debug_disable_vert_hints;
+  int    _af_debug_disable_blue_hints;
+  void*  _af_debug_hints;
+#endif
+
+#include FT_INTERNAL_OBJECTS_H
+
+
+  typedef struct  FT_AutofitterRec_
+  {
+    FT_ModuleRec  root;
+    AF_LoaderRec  loader[1];
+
+  } FT_AutofitterRec, *FT_Autofitter;
+
+
+  FT_CALLBACK_DEF( FT_Error )
+  af_autofitter_init( FT_Autofitter  module )
+  {
+    return af_loader_init( module->loader, module->root.library->memory );
+  }
+
+
+  FT_CALLBACK_DEF( void )
+  af_autofitter_done( FT_Autofitter  module )
+  {
+    af_loader_done( module->loader );
+  }
+
+
+  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 )
+  {
+    FT_UNUSED( size );
+
+    return af_loader_load_glyph( module->loader, slot->face,
+                                 glyph_index, load_flags );
+  }
+
+
+  FT_CALLBACK_TABLE_DEF
+  const FT_AutoHinter_ServiceRec  af_autofitter_service =
+  {
+    NULL,
+    NULL,
+    NULL,
+    (FT_AutoHinter_GlyphLoadFunc)af_autofitter_load_glyph
+  };
+
+
+  FT_CALLBACK_TABLE_DEF
+  const FT_Module_Class  autofit_module_class =
+  {
+    FT_MODULE_HINTER,
+    sizeof ( FT_AutofitterRec ),
+
+    "autofitter",
+    0x10000L,   /* version 1.0 of the autofitter  */
+    0x20000L,   /* requires FreeType 2.0 or above */
+
+    (const void*)&af_autofitter_service,
+
+    (FT_Module_Constructor)af_autofitter_init,
+    (FT_Module_Destructor) af_autofitter_done,
+    (FT_Module_Requester)  NULL
+  };
+
+
+/* END */
diff --git a/src/autofit/afmodule.h b/src/autofit/afmodule.h
new file mode 100644
index 0000000..36268a0
--- /dev/null
+++ b/src/autofit/afmodule.h
@@ -0,0 +1,37 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afmodule.h                                                             */
+/*                                                                         */
+/*    Auto-fitter module implementation (specification).                   */
+/*                                                                         */
+/*  Copyright 2003, 2004, 2005 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 __AFMODULE_H__
+#define __AFMODULE_H__
+
+#include <ft2build.h>
+#include FT_MODULE_H
+
+
+FT_BEGIN_HEADER
+
+  FT_CALLBACK_TABLE
+  const FT_Module_Class  autofit_module_class;
+
+
+FT_END_HEADER
+
+#endif /* __AFMODULE_H__ */
+
+
+/* END */
diff --git a/src/autofit/aftypes.h b/src/autofit/aftypes.h
new file mode 100644
index 0000000..56811f0
--- /dev/null
+++ b/src/autofit/aftypes.h
@@ -0,0 +1,349 @@
+/***************************************************************************/
+/*                                                                         */
+/*  aftypes.h                                                              */
+/*                                                                         */
+/*    Auto-fitter types (specification only).                              */
+/*                                                                         */
+/*  Copyright 2003, 2004, 2005, 2006, 2007, 2008 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 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.
+   *
+   *  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.
+   *
+   *************************************************************************/
+
+
+#ifndef __AFTYPES_H__
+#define __AFTYPES_H__
+
+#include <ft2build.h>
+
+#include FT_FREETYPE_H
+#include FT_OUTLINE_H
+#include FT_INTERNAL_OBJECTS_H
+#include FT_INTERNAL_DEBUG_H
+
+
+FT_BEGIN_HEADER
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                    D E B U G G I N G                          *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+#define xxAF_USE_WARPER  /* only define to use warp hinting */
+#define xxAF_DEBUG
+
+#ifdef AF_DEBUG
+
+#include <stdio.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 */
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                 U T I L I T Y   S T U F F                     *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  typedef struct  AF_WidthRec_
+  {
+    FT_Pos  org;  /* original position/width in font units              */
+    FT_Pos  cur;  /* current/scaled position/width in device sub-pixels */
+    FT_Pos  fit;  /* current/fitted position/width in device sub-pixels */
+
+  } AF_WidthRec, *AF_Width;
+
+
+  FT_LOCAL( void )
+  af_sort_pos( FT_UInt  count,
+               FT_Pos*  table );
+
+  FT_LOCAL( void )
+  af_sort_widths( FT_UInt   count,
+                  AF_Width  widths );
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                   A N G L E   T Y P E S                       *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /*
+   *  The auto-fitter doesn't need a very high angular accuracy;
+   *  this allows us to speed up some computations considerably with a
+   *  light Cordic algorithm (see afangles.c).
+   */
+
+  typedef FT_Int  AF_Angle;
+
+
+#define AF_ANGLE_PI   256
+#define AF_ANGLE_2PI  ( AF_ANGLE_PI * 2 )
+#define AF_ANGLE_PI2  ( AF_ANGLE_PI / 2 )
+#define AF_ANGLE_PI4  ( AF_ANGLE_PI / 4 )
+
+
+#if 0
+  /*
+   *  compute the angle of a given 2-D vector
+   */
+  FT_LOCAL( AF_Angle )
+  af_angle_atan( FT_Pos  dx,
+                 FT_Pos  dy );
+
+
+  /*
+   *  compute `angle2 - angle1'; the result is always within
+   *  the range [-AF_ANGLE_PI .. AF_ANGLE_PI - 1]
+   */
+  FT_LOCAL( AF_Angle )
+  af_angle_diff( AF_Angle  angle1,
+                 AF_Angle  angle2 );
+#endif /* 0 */
+
+
+#define AF_ANGLE_DIFF( result, angle1, angle2 ) \
+  FT_BEGIN_STMNT                                \
+    AF_Angle  _delta = (angle2) - (angle1);     \
+                                                \
+                                                \
+    _delta %= AF_ANGLE_2PI;                     \
+    if ( _delta < 0 )                           \
+      _delta += AF_ANGLE_2PI;                   \
+                                                \
+    if ( _delta > AF_ANGLE_PI )                 \
+      _delta -= AF_ANGLE_2PI;                   \
+                                                \
+    result = _delta;                            \
+  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;
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                       S C A L E R S                           *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /*
+   *  A scaler models the target pixel device that will receive the
+   *  auto-hinted glyph image.
+   */
+
+  typedef enum  AF_ScalerFlags_
+  {
+    AF_SCALER_FLAG_NO_HORIZONTAL = 1,  /* disable horizontal hinting */
+    AF_SCALER_FLAG_NO_VERTICAL   = 2,  /* disable vertical hinting   */
+    AF_SCALER_FLAG_NO_ADVANCE    = 4   /* disable advance hinting    */
+
+  } AF_ScalerFlags;
+
+
+  typedef struct  AF_ScalerRec_
+  {
+    FT_Face         face;        /* source font face                        */
+    FT_Fixed        x_scale;     /* from font units to 1/64th device pixels */
+    FT_Fixed        y_scale;     /* from font units to 1/64th device pixels */
+    FT_Pos          x_delta;     /* in 1/64th device pixels                 */
+    FT_Pos          y_delta;     /* in 1/64th device pixels                 */
+    FT_Render_Mode  render_mode; /* monochrome, anti-aliased, LCD, etc.     */
+    FT_UInt32       flags;       /* additional control flags, see above     */
+
+  } AF_ScalerRec, *AF_Scaler;
+
+
+#define AF_SCALER_EQUAL_SCALES( a, b )      \
+          ( (a)->x_scale == (b)->x_scale && \
+            (a)->y_scale == (b)->y_scale && \
+            (a)->x_delta == (b)->x_delta && \
+            (a)->y_delta == (b)->y_delta )
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                       S C R I P T 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.
+   *
+   *   - A specific glyph analyzer that will compute segments and
+   *     edges for each glyph covered by the script.
+   *
+   *   - A specific grid-fitting algorithm that will distort the
+   *     scaled glyph outline according to the results of the glyph
+   *     analyzer.
+   *
+   *  Note that a given analyzer and/or grid-fitting algorithm can be
+   *  used by more than one script.
+   */
+
+  typedef enum  AF_Script_
+  {
+    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'.                                             */
+
+    AF_SCRIPT_MAX   /* do not remove */
+
+  } AF_Script;
+
+
+  typedef struct AF_ScriptClassRec_ const*  AF_ScriptClass;
+
+  typedef struct  AF_ScriptMetricsRec_
+  {
+    AF_ScriptClass  clazz;
+    AF_ScalerRec    scaler;
+
+  } AF_ScriptMetricsRec, *AF_ScriptMetrics;
+
+
+  /*  This function parses an FT_Face to compute global metrics for
+   *  a specific script.
+   */
+  typedef FT_Error
+  (*AF_Script_InitMetricsFunc)( AF_ScriptMetrics  metrics,
+                                FT_Face           face );
+
+  typedef void
+  (*AF_Script_ScaleMetricsFunc)( AF_ScriptMetrics  metrics,
+                                 AF_Scaler         scaler );
+
+  typedef void
+  (*AF_Script_DoneMetricsFunc)( AF_ScriptMetrics  metrics );
+
+
+  typedef FT_Error
+  (*AF_Script_InitHintsFunc)( AF_GlyphHints     hints,
+                              AF_ScriptMetrics  metrics );
+
+  typedef void
+  (*AF_Script_ApplyHintsFunc)( AF_GlyphHints     hints,
+                               FT_Outline*       outline,
+                               AF_ScriptMetrics  metrics );
+
+
+  typedef struct  AF_Script_UniRangeRec_
+  {
+    FT_UInt32  first;
+    FT_UInt32  last;
+
+  } AF_Script_UniRangeRec;
+
+  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 } */
+
+    FT_UInt                     script_metrics_size;
+    AF_Script_InitMetricsFunc   script_metrics_init;
+    AF_Script_ScaleMetricsFunc  script_metrics_scale;
+    AF_Script_DoneMetricsFunc   script_metrics_done;
+
+    AF_Script_InitHintsFunc     script_hints_init;
+    AF_Script_ApplyHintsFunc    script_hints_apply;
+
+  } AF_ScriptClassRec;
+
+
+/* */
+
+FT_END_HEADER
+
+#endif /* __AFTYPES_H__ */
+
+
+/* END */
diff --git a/src/autofit/afwarp.c b/src/autofit/afwarp.c
new file mode 100644
index 0000000..f5bb9b1
--- /dev/null
+++ b/src/autofit/afwarp.c
@@ -0,0 +1,338 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afwarp.c                                                               */
+/*                                                                         */
+/*    Auto-fitter warping algorithm (body).                                */
+/*                                                                         */
+/*  Copyright 2006, 2007 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 "afwarp.h"
+
+#ifdef AF_USE_WARPER
+
+#if 1
+  static const AF_WarpScore
+  af_warper_weights[64] =
+  {
+    35, 32, 30, 25, 20, 15, 12, 10,  5,  1,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0, -1, -2, -5, -8,-10,-10,-20,-20,-30,-30,
+
+   -30,-30,-20,-20,-10,-10, -8, -5, -2, -1,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  1,  5, 10, 12, 15, 20, 25, 30, 32,
+  };
+#else
+  static const AF_WarpScore
+  af_warper_weights[64] =
+  {
+    30, 20, 10,  5,  4,  4,  3,  2,  1,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0, -1, -2, -2, -5, -5,-10,-10,-15,-20,
+
+   -20,-15,-15,-10,-10, -5, -5, -2, -2, -1,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  1,  2,  3,  4,  4,  5, 10, 20,
+  };
+#endif
+
+
+  static void
+  af_warper_compute_line_best( AF_Warper     warper,
+                               FT_Fixed      scale,
+                               FT_Pos        delta,
+                               FT_Pos        xx1,
+                               FT_Pos        xx2,
+                               AF_WarpScore  base_distort,
+                               AF_Segment    segments,
+                               FT_UInt       num_segments )
+  {
+    FT_Int        idx_min, idx_max, idx0;
+    FT_UInt       nn;
+    AF_WarpScore  scores[65];
+
+
+    for ( nn = 0; nn < 65; nn++ )
+      scores[nn] = 0;
+
+    idx0 = xx1 - warper->t1;
+
+    /* compute minimum and maximum indices */
+    {
+      FT_Pos  xx1min = warper->x1min;
+      FT_Pos  xx1max = warper->x1max;
+      FT_Pos  w      = xx2 - xx1;
+
+
+      if ( xx1min + w < warper->x2min )
+        xx1min = warper->x2min - w;
+
+      xx1max = warper->x1max;
+      if ( xx1max + w > warper->x2max )
+        xx1max = warper->x2max - w;
+
+      idx_min = xx1min - warper->t1;
+      idx_max = xx1max - warper->t1;
+
+      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 ));
+        return;
+      }
+    }
+
+    for ( nn = 0; nn < num_segments; nn++ )
+    {
+      FT_Pos  len = segments[nn].max_coord - segments[nn].min_coord;
+      FT_Pos  y0  = FT_MulFix( segments[nn].pos, scale ) + delta;
+      FT_Pos  y   = y0 + ( idx_min - idx0 );
+      FT_Int  idx;
+
+
+      for ( idx = idx_min; idx <= idx_max; idx++, y++ )
+        scores[idx] += af_warper_weights[y & 63] * len;
+    }
+
+    /* find best score */
+    {
+      FT_Int  idx;
+
+
+      for ( idx = idx_min; idx <= idx_max; idx++ )
+      {
+        AF_WarpScore  score = scores[idx];
+        AF_WarpScore  distort = base_distort + ( idx - idx0 );
+
+
+        if ( score > warper->best_score           ||
+             ( score == warper->best_score    &&
+               distort < warper->best_distort )   )
+        {
+          warper->best_score   = score;
+          warper->best_distort = distort;
+          warper->best_scale   = scale;
+          warper->best_delta   = delta + ( idx - idx0 );
+        }
+      }
+    }
+  }
+
+
+  FT_LOCAL_DEF( void )
+  af_warper_compute( AF_Warper      warper,
+                     AF_GlyphHints  hints,
+                     AF_Dimension   dim,
+                     FT_Fixed      *a_scale,
+                     FT_Pos        *a_delta )
+  {
+    AF_AxisHints  axis;
+    AF_Point      points;
+
+    FT_Fixed      org_scale;
+    FT_Pos        org_delta;
+
+    FT_UInt       nn, num_points, num_segments;
+    FT_Int        X1, X2;
+    FT_Int        w;
+
+    AF_WarpScore  base_distort;
+    AF_Segment    segments;
+
+
+    /* get original scaling transformation */
+    if ( dim == AF_DIMENSION_VERT )
+    {
+      org_scale = hints->y_scale;
+      org_delta = hints->y_delta;
+    }
+    else
+    {
+      org_scale = hints->x_scale;
+      org_delta = hints->x_delta;
+    }
+
+    warper->best_scale   = org_scale;
+    warper->best_delta   = org_delta;
+    warper->best_score   = INT_MIN;
+    warper->best_distort = 0;
+
+    axis         = &hints->axis[dim];
+    segments     = axis->segments;
+    num_segments = axis->num_segments;
+    points       = hints->points;
+    num_points   = hints->num_points;
+
+    *a_scale = org_scale;
+    *a_delta = org_delta;
+
+    /* get X1 and X2, minimum and maximum in original coordinates */
+    if ( num_segments < 1 )
+      return;
+
+#if 1
+    X1 = X2 = points[0].fx;
+    for ( nn = 1; nn < num_points; nn++ )
+    {
+      FT_Int  X = points[nn].fx;
+
+
+      if ( X < X1 )
+        X1 = X;
+      if ( X > X2 )
+        X2 = X;
+    }
+#else
+    X1 = X2 = segments[0].pos;
+    for ( nn = 1; nn < num_segments; nn++ )
+    {
+      FT_Int  X = segments[nn].pos;
+
+
+      if ( X < X1 )
+        X1 = X;
+      if ( X > X2 )
+        X2 = X;
+    }
+#endif
+
+    if ( X1 >= X2 )
+      return;
+
+    warper->x1 = FT_MulFix( X1, org_scale ) + org_delta;
+    warper->x2 = FT_MulFix( X2, org_scale ) + org_delta;
+
+    warper->t1 = AF_WARPER_FLOOR( warper->x1 );
+    warper->t2 = AF_WARPER_CEIL( warper->x2 );
+
+    warper->x1min = warper->x1 & ~31;
+    warper->x1max = warper->x1min + 32;
+    warper->x2min = warper->x2 & ~31;
+    warper->x2max = warper->x2min + 32;
+
+    if ( warper->x1max > warper->x2 )
+      warper->x1max = warper->x2;
+
+    if ( warper->x2min < warper->x1 )
+      warper->x2min = warper->x1;
+
+    warper->w0 = warper->x2 - warper->x1;
+
+    if ( warper->w0 <= 64 )
+    {
+      warper->x1max = warper->x1;
+      warper->x2min = warper->x2;
+    }
+
+    warper->wmin = warper->x2min - warper->x1max;
+    warper->wmax = warper->x2max - warper->x1min;
+
+#if 1
+    {
+      int  margin = 16;
+
+
+      if ( warper->w0 <= 128 )
+      {
+         margin = 8;
+         if ( warper->w0 <= 96 )
+           margin = 4;
+      }
+
+      if ( warper->wmin < warper->w0 - margin )
+        warper->wmin = warper->w0 - margin;
+
+      if ( warper->wmax > warper->w0 + margin )
+        warper->wmax = warper->w0 + margin;
+    }
+
+    if ( warper->wmin < warper->w0 * 3 / 4 )
+      warper->wmin = warper->w0 * 3 / 4;
+
+    if ( warper->wmax > warper->w0 * 5 / 4 )
+      warper->wmax = warper->w0 * 5 / 4;
+#else
+    /* no scaling, just translation */
+    warper->wmin = warper->wmax = warper->w0;
+#endif
+
+    for ( w = warper->wmin; w <= warper->wmax; w++ )
+    {
+      FT_Fixed  new_scale;
+      FT_Pos    new_delta;
+      FT_Pos    xx1, xx2;
+
+
+      xx1 = warper->x1;
+      xx2 = warper->x2;
+      if ( w >= warper->w0 )
+      {
+        xx1 -= w - warper->w0;
+        if ( xx1 < warper->x1min )
+        {
+          xx2 += warper->x1min - xx1;
+          xx1  = warper->x1min;
+        }
+      }
+      else
+      {
+        xx1 -= w - warper->w0;
+        if ( xx1 > warper->x1max )
+        {
+          xx2 -= xx1 - warper->x1max;
+          xx1  = warper->x1max;
+        }
+      }
+
+      if ( xx1 < warper->x1 )
+        base_distort = warper->x1 - xx1;
+      else
+        base_distort = xx1 - warper->x1;
+
+      if ( xx2 < warper->x2 )
+        base_distort += warper->x2 - xx2;
+      else
+        base_distort += xx2 - warper->x2;
+
+      base_distort *= 10;
+
+      new_scale = org_scale + FT_DivFix( w - warper->w0, X2 - X1 );
+      new_delta = xx1 - FT_MulFix( X1, new_scale );
+
+      af_warper_compute_line_best( warper, new_scale, new_delta, xx1, xx2,
+                                   base_distort,
+                                   segments, num_segments );
+    }
+
+    {
+      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;
+      hints->xmax_delta = FT_MulFix( X2, best_scale - org_scale )
+                          + best_delta;
+
+      *a_scale = best_scale;
+      *a_delta = best_delta;
+    }
+  }
+
+#else /* !AF_USE_WARPER */
+
+char  af_warper_dummy = 0;  /* make compiler happy */
+
+#endif /* !AF_USE_WARPER */
+
+/* END */
diff --git a/src/autofit/afwarp.h b/src/autofit/afwarp.h
new file mode 100644
index 0000000..7343fdd
--- /dev/null
+++ b/src/autofit/afwarp.h
@@ -0,0 +1,64 @@
+/***************************************************************************/
+/*                                                                         */
+/*  afwarp.h                                                               */
+/*                                                                         */
+/*    Auto-fitter warping algorithm (specification).                       */
+/*                                                                         */
+/*  Copyright 2006, 2007 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 __AFWARP_H__
+#define __AFWARP_H__
+
+#include "afhints.h"
+
+FT_BEGIN_HEADER
+
+#define AF_WARPER_SCALE
+
+#define AF_WARPER_FLOOR( x )  ( (x) & ~63 )
+#define AF_WARPER_CEIL( x )   AF_WARPER_FLOOR( (x) + 63 )
+
+
+  typedef FT_Int32  AF_WarpScore;
+
+  typedef struct  AF_WarperRec_
+  {
+    FT_Pos        x1, x2;
+    FT_Pos        t1, t2;
+    FT_Pos        x1min, x1max;
+    FT_Pos        x2min, x2max;
+    FT_Pos        w0, wmin, wmax;
+
+    FT_Fixed      best_scale;
+    FT_Pos        best_delta;
+    AF_WarpScore  best_score;
+    AF_WarpScore  best_distort;
+
+  } AF_WarperRec, *AF_Warper;
+
+
+  FT_LOCAL( void )
+  af_warper_compute( AF_Warper      warper,
+                     AF_GlyphHints  hints,
+                     AF_Dimension   dim,
+                     FT_Fixed      *a_scale,
+                     FT_Fixed      *a_delta );
+
+
+FT_END_HEADER
+
+
+#endif /* __AFWARP_H__ */
+
+
+/* END */
diff --git a/src/autofit/autofit.c b/src/autofit/autofit.c
new file mode 100644
index 0000000..2fe66a9
--- /dev/null
+++ b/src/autofit/autofit.c
@@ -0,0 +1,40 @@
+/***************************************************************************/
+/*                                                                         */
+/*  autofit.c                                                              */
+/*                                                                         */
+/*    Auto-fitter module (body).                                           */
+/*                                                                         */
+/*  Copyright 2003, 2004, 2005, 2006, 2007 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.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#define FT_MAKE_OPTION_SINGLE_OBJECT
+#include <ft2build.h>
+#include "afangles.c"
+#include "afglobal.c"
+#include "afhints.c"
+
+#include "afdummy.c"
+#include "aflatin.c"
+#ifdef FT_OPTION_AUTOFIT2
+#include "aflatin2.c"
+#endif
+#include "afcjk.c"
+#include "afindic.c"
+
+#include "afloader.c"
+#include "afmodule.c"
+
+#ifdef AF_USE_WARPER
+#include "afwarp.c"
+#endif
+
+/* END */