Attachment #72883 for bug #157441

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Lines 547-552 Link Here

(-)freetype-2.1.10.old/devel/ftoption.h (+16 lines)
547	/* */	547	/* */
548	#undef T1_CONFIG_OPTION_NO_MM_SUPPORT	548	#undef T1_CONFIG_OPTION_NO_MM_SUPPORT
549		549
		550	/*************************************************************************/
		551	/*************************************************************************/
		552	/** **/
		553	/** A U T O F I T M O D U L E C O N F I G U R A T I O N **/
		554	/** **/
		555	/*************************************************************************/
		556	/*************************************************************************/
		557
		558
		559	/*************************************************************************/
		560	/* */
		561	/* Compile autofit module with CJK script support. */
		562	/* */
		563	#define AF_CONFIG_OPTION_CJK
		564
		565
550	/* */	566	/* */
551		567
552	/*	568	/*

Lines 547-552 Link Here

(-)freetype-2.1.10.old/include/freetype/config/ftoption.h (+15 lines)
547	/* */	547	/* */
548	#undef T1_CONFIG_OPTION_NO_MM_SUPPORT	548	#undef T1_CONFIG_OPTION_NO_MM_SUPPORT
549		549
		550	/*************************************************************************/
		551	/*************************************************************************/
		552	/** **/
		553	/** A U T O F I T M O D U L E C O N F I G U R A T I O N **/
		554	/** **/
		555	/*************************************************************************/
		556	/*************************************************************************/
		557
		558
		559	/*************************************************************************/
		560	/* */
		561	/* Compile autofit module with CJK script support. */
		562	/* */
		563	#define AF_CONFIG_OPTION_CJK
		564
550	/* */	565	/* */
551		566
552	/*	567	/*




                              FT_UInt         n_points,
                              FT_UInt         n_contours );

#define FT_GLYPHLOADER_CHECK_P( _loader, _count )                    \
   ( (_count) == 0 || (int)((_loader)->base.outline.n_points    +    \
                            (_loader)->current.outline.n_points +    \
                            (_count)) <= (int)(_loader)->max_points )

#define FT_GLYPHLOADER_CHECK_C( _loader, _count )                     \
  ( (_count) == 0 || (int)((_loader)->base.outline.n_contours    +    \
                           (_loader)->current.outline.n_contours +    \
                           (_count)) <= (int)(_loader)->max_contours )

#define FT_GLYPHLOADER_CHECK_POINTS( _loader, _points,_contours )      \
  ( ( FT_GLYPHLOADER_CHECK_P( _loader, _points )   &&                  \
      FT_GLYPHLOADER_CHECK_C( _loader, _contours ) )                   \
    ? 0                                                                \
    : FT_GlyphLoader_CheckPoints( (_loader), (_points), (_contours) ) )


  /* check that there is enough space to add `n_subs' sub-glyphs to */
  /* a glyph loader                                                 */
  FT_BASE( FT_Error )

Lines 20-25 Link Here

(-)freetype-2.1.10.old/src/autofit/afangles.c (+108 lines)
20	#include "aftypes.h"	20	#include "aftypes.h"
21		21
22		22
		23	#if 1
		24
		25	/* the following table has been automatically generated with */
		26	/* the `mather.py' Python script */
		27
		28	#define AF_ATAN_BITS 8
		29
		30	static const FT_Byte af_arctan[1L << AF_ATAN_BITS] =
		31	{
		32	0, 0, 1, 1, 1, 2, 2, 2,
		33	3, 3, 3, 3, 4, 4, 4, 5,
		34	5, 5, 6, 6, 6, 7, 7, 7,
		35	8, 8, 8, 9, 9, 9, 10, 10,
		36	10, 10, 11, 11, 11, 12, 12, 12,
		37	13, 13, 13, 14, 14, 14, 14, 15,
		38	15, 15, 16, 16, 16, 17, 17, 17,
		39	18, 18, 18, 18, 19, 19, 19, 20,
		40	20, 20, 21, 21, 21, 21, 22, 22,
		41	22, 23, 23, 23, 24, 24, 24, 24,
		42	25, 25, 25, 26, 26, 26, 26, 27,
		43	27, 27, 28, 28, 28, 28, 29, 29,
		44	29, 30, 30, 30, 30, 31, 31, 31,
		45	31, 32, 32, 32, 33, 33, 33, 33,
		46	34, 34, 34, 34, 35, 35, 35, 35,
		47	36, 36, 36, 36, 37, 37, 37, 38,
		48	38, 38, 38, 39, 39, 39, 39, 40,
		49	40, 40, 40, 41, 41, 41, 41, 42,
		50	42, 42, 42, 42, 43, 43, 43, 43,
		51	44, 44, 44, 44, 45, 45, 45, 45,
		52	46, 46, 46, 46, 46, 47, 47, 47,
		53	47, 48, 48, 48, 48, 48, 49, 49,
		54	49, 49, 50, 50, 50, 50, 50, 51,
		55	51, 51, 51, 51, 52, 52, 52, 52,
		56	52, 53, 53, 53, 53, 53, 54, 54,
		57	54, 54, 54, 55, 55, 55, 55, 55,
		58	56, 56, 56, 56, 56, 57, 57, 57,
		59	57, 57, 57, 58, 58, 58, 58, 58,
		60	59, 59, 59, 59, 59, 59, 60, 60,
		61	60, 60, 60, 61, 61, 61, 61, 61,
		62	61, 62, 62, 62, 62, 62, 62, 63,
		63	63, 63, 63, 63, 63, 64, 64, 64
		64	};
		65
		66
		67	FT_LOCAL_DEF( AF_Angle )
		68	af_angle_atan( FT_Fixed dx,
		69	FT_Fixed dy )
		70	{
		71	AF_Angle angle;
		72
		73
		74	/* check trivial cases */
		75	if ( dy == 0 )
		76	{
		77	angle = 0;
		78	if ( dx < 0 )
		79	angle = AF_ANGLE_PI;
		80	return angle;
		81	}
		82	else if ( dx == 0 )
		83	{
		84	angle = AF_ANGLE_PI2;
		85	if ( dy < 0 )
		86	angle = -AF_ANGLE_PI2;
87	return angle;
88	}
89
90	angle = 0;
91	if ( dx < 0 )
92	{
93	dx = -dx;
94	dy = -dy;
95	angle = AF_ANGLE_PI;
96	}
97
98	if ( dy < 0 )
99	{
100	FT_Pos tmp;
101
102
103	tmp = dx;
104	dx = -dy;
105	dy = tmp;
106	angle -= AF_ANGLE_PI2;
107	}
108
109	if ( dx == 0 && dy == 0 )
110	return 0;
111
112	if ( dx == dy )
113	angle += AF_ANGLE_PI4;
114	else if ( dx > dy )
115	angle += af_arctan[FT_DivFix( dy, dx ) >> ( 16 - AF_ATAN_BITS )];
116	else
117	angle += AF_ANGLE_PI2 -
118	af_arctan[FT_DivFix( dx, dy ) >> ( 16 - AF_ATAN_BITS )];
119
120	if ( angle > AF_ANGLE_PI )
121	angle -= AF_ANGLE_2PI;
122
123	return angle;
124	}
125
126
127	#else /* 0 */
128
23	/*	129	/*
24	* a python script used to generate the following table	130	* a python script used to generate the following table
25	*	131	*
Lines 234-239 Link Here
234	return delta;	340	return delta;
235	}	341	}
236		342
		343	#endif /* 0 */
		344
237		345
238	FT_LOCAL_DEF( void )	346	FT_LOCAL_DEF( void )
239	af_sort_pos( FT_UInt count,	347	af_sort_pos( FT_UInt count,




/***************************************************************************/
/*                                                                         */
/*  afcjk.c                                                                */
/*                                                                         */
/*    Auto-fitter hinting routines for CJK script (body).                  */
/*                                                                         */
/*  Copyright 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.                                        */
/*                                                                         */
/***************************************************************************/

  /*
   *  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              *****/
  /*****                                                               *****/
  /*************************************************************************/
  /*************************************************************************/

  static 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;
    }
  }


  static 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_UShort     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;

    AF_Direction  up_dir;
    FT_Fixed      scale;
    FT_Pos        edge_distance_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 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, 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;
  }


  static 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 = ( ( 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 );
      }
    }
  }


  static 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 );
    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[] =
  {
    { 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 */




/***************************************************************************/
/*                                                                         */
/*  afcjk.h                                                                */
/*                                                                         */
/*    Auto-fitter hinting routines for CJK script (specification).         */
/*                                                                         */
/*  Copyright 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.                                        */
/*                                                                         */
/***************************************************************************/


#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_END_HEADER

#endif /* __AFCJK_H__ */


/* END */




/*                                                                         */
/*    Auto-fitter routines to compute global hinting values (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,       */

#include "afglobal.h"
#include "afdummy.h"
#include "aflatin.h"
#include "afcjk.h"
#include "aferrors.h"



  {
    &af_dummy_script_class,
    &af_latin_script_class,
    &af_cjk_script_class,

    NULL  /* do not remove */
  };




/*                                                                         */
/*    Auto-fitter hinting 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,       */

#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 )
  {
#if 1
    AF_Direction  dir = AF_DIR_NONE;


    /* atan(1/12) == 4.7 degrees */

    if ( dx < 0 )
    {
      if ( dy < 0 )
      {
        if ( -dx * 12 < -dy )
          dir = AF_DIR_DOWN;

        else if ( -dy * 12 < -dx )
          dir = AF_DIR_LEFT;
      }
      else /* dy >= 0 */
      {
        if ( -dx * 12 < dy )
          dir = AF_DIR_UP;

        else if ( dy * 12 < -dx )
          dir = AF_DIR_LEFT;
      }
    }
    else /* dx >= 0 */
    {
      if ( dy < 0 )
      {
        if ( dx * 12 < -dy )
          dir = AF_DIR_DOWN;

        else if ( -dy * 12 < dx )
          dir = AF_DIR_RIGHT;
      }
      else  /* dy >= 0 */
      {
        if ( dx * 12 < dy )
          dir = AF_DIR_UP;

        else if ( dy * 12 < dx )
          dir = AF_DIR_RIGHT;
      }
    }

    return dir;

#else /* 0 */

    AF_Direction  dir;
    FT_Pos        ax = FT_ABS( dx );
    FT_Pos        ay = FT_ABS( dy );

    }

    return dir;

#endif /* 0 */

  }




      } while ( angle_in == angle_seg );

      first = start;

      AF_ANGLE_DIFF( diff_in, angle_in, angle_seg );

      /* now, process all segments in the contour */
      do


        } while ( angle_out == angle_seg );

        AF_ANGLE_DIFF( diff_out, angle_seg, angle_out );

        if ( ( diff_in ^ diff_out ) < 0 )
        {

  af_glyph_hints_rescale( AF_GlyphHints     hints,
                          AF_ScriptMetrics  metrics )
  {
    hints->metrics      = metrics;
    hints->scaler_flags = metrics->scaler.flags;
  }



    FT_Error   error   = AF_Err_Ok;
    AF_Point   points;
    FT_UInt    old_max, new_max;
    AF_Scaler  scaler  = &hints->metrics->scaler;
    FT_Fixed   x_scale = hints->x_scale;
    FT_Fixed   y_scale = hints->y_scale;
    FT_Pos     x_delta = hints->x_delta;

    FT_Memory  memory  = hints->memory;


    hints->scaler_flags = scaler->flags;
    hints->num_points   = 0;
    hints->num_contours = 0;



            angle_in  = af_angle_atan( in_x, in_y );
            angle_out = af_angle_atan( out_x, out_y );

            AF_ANGLE_DIFF( delta, angle_in, angle_out );

            if ( delta < 2 && delta > -2 )
              goto Is_Weak_Point;

  }


#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 */




/*                                                                         */
/*    Auto-fitter hinting routines (specification).                        */
/*                                                                         */
/*  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,       */

    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_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


Lines 4-10 Link Here

(-)freetype-2.1.10.old/src/autofit/aflatin.c (-33 / +85 lines)
4	/* */	4	/* */
5	/* Auto-fitter hinting routines for latin script (body). */	5	/* Auto-fitter hinting routines for latin script (body). */
6	/* */	6	/* */
7	/* Copyright 2003, 2004, 2005 by */	7	/* Copyright 2003, 2004, 2005, 2006 by */
8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */	8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */
9	/* */	9	/* */
10	/* This file is part of the FreeType project, and may only be used, */	10	/* This file is part of the FreeType project, and may only be used, */
Lines 20-25 Link Here
20	#include "aferrors.h"	20	#include "aferrors.h"
21		21
22		22
		23	#ifdef AF_USE_WARPER
		24	#include "afwarp.h"
		25	#endif
		26
		27
23	/*************************************************************************/	28	/*************************************************************************/
24	/*************************************************************************/	29	/*************************************************************************/
25	/*** ***/	30	/*** ***/
Lines 28-36 Link Here
28	/*************************************************************************/	33	/*************************************************************************/
29	/*************************************************************************/	34	/*************************************************************************/
30		35
31	static void	36	FT_LOCAL_DEF( void )
32	af_latin_metrics_init_widths( AF_LatinMetrics metrics,	37	af_latin_metrics_init_widths( AF_LatinMetrics metrics,
33	FT_Face face )	38	FT_Face face,
		39	FT_ULong charcode )
34	{	40	{
35	/* scan the array of segments in each direction */	41	/* scan the array of segments in each direction */
36	AF_GlyphHintsRec hints[1];	42	AF_GlyphHintsRec hints[1];
Lines 41-56 Link Here
41	metrics->axis[AF_DIMENSION_HORZ].width_count = 0;	47	metrics->axis[AF_DIMENSION_HORZ].width_count = 0;
42	metrics->axis[AF_DIMENSION_VERT].width_count = 0;	48	metrics->axis[AF_DIMENSION_VERT].width_count = 0;
43		49
44	/* For now, compute the standard width and height from the `o'. */
45	{	50	{
46	FT_Error error;	51	FT_Error error;
47	FT_UInt glyph_index;	52	FT_UInt glyph_index;
48	int dim;	53	int dim;
49	AF_ScriptMetricsRec dummy[1];	54	AF_LatinMetricsRec dummy[1];
50	AF_Scaler scaler = &dummy->scaler;	55	AF_Scaler scaler = &dummy->root.scaler;
51		56
52		57
53	glyph_index = FT_Get_Char_Index( face, 'o' );	58	glyph_index = FT_Get_Char_Index( face, charcode );
54	if ( glyph_index == 0 )	59	if ( glyph_index == 0 )
55	goto Exit;	60	goto Exit;
56		61
Lines 60-72 Link Here
60		65
61	FT_ZERO( dummy );	66	FT_ZERO( dummy );
62		67
		68	dummy->units_per_em = metrics->units_per_em;
63	scaler->x_scale = scaler->y_scale = 0x10000L;	69	scaler->x_scale = scaler->y_scale = 0x10000L;
64	scaler->x_delta = scaler->y_delta = 0;	70	scaler->x_delta = scaler->y_delta = 0;
65	scaler->face = face;	71	scaler->face = face;
66	scaler->render_mode = FT_RENDER_MODE_NORMAL;	72	scaler->render_mode = FT_RENDER_MODE_NORMAL;
67	scaler->flags = 0;	73	scaler->flags = 0;
68		74
69	af_glyph_hints_rescale( hints, dummy );	75	af_glyph_hints_rescale( hints, (AF_ScriptMetrics)dummy );
70		76
71	error = af_glyph_hints_reload( hints, &face->glyph->outline );	77	error = af_glyph_hints_reload( hints, &face->glyph->outline );
72	if ( error )	78	if ( error )
Lines 77-85 Link Here
77	AF_LatinAxis axis = &metrics->axis[dim];	83	AF_LatinAxis axis = &metrics->axis[dim];
78	AF_AxisHints axhints = &hints->axis[dim];	84	AF_AxisHints axhints = &hints->axis[dim];
79	AF_Segment seg, limit, link;	85	AF_Segment seg, limit, link;
80		86	FT_UInt num_widths = 0;
81	FT_UInt num_widths = 0;
82	FT_Pos edge_distance_threshold = 32000;
83		87
84		88
85	error = af_latin_hints_compute_segments( hints,	89	error = af_latin_hints_compute_segments( hints,
Lines 114-135 Link Here
114		118
115	af_sort_widths( num_widths, axis->widths );	119	af_sort_widths( num_widths, axis->widths );
116	axis->width_count = num_widths;	120	axis->width_count = num_widths;
		121	}
		122
		123	Exit:
		124	for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
		125	{
		126	AF_LatinAxis axis = &metrics->axis[dim];
		127	FT_Pos stdw;
117		128
118	/* we will now try to find the smallest width */
119	if ( num_widths > 0 && axis->widths[0].org < edge_distance_threshold )
120	edge_distance_threshold = axis->widths[0].org;
121
122	/* Now, compute the edge distance threshold as a fraction of the */
123	/* smallest width in the font. Set it in `hinter->glyph' too! */
124	if ( edge_distance_threshold == 32000 )
125	edge_distance_threshold = 50;
126		129
127	/* let's try 20% */	130	stdw = ( axis->width_count > 0 )
128	axis->edge_distance_threshold = edge_distance_threshold / 5;	131	? axis->widths[0].org
		132	: AF_LATIN_CONSTANT( metrics, 50 );
		133
		134	/* let's try 20% of the smallest width */
		135	axis->edge_distance_threshold = stdw / 5;
129	}	136	}
130	}	137	}
131		138
132	Exit:
133	af_glyph_hints_done( hints );	139	af_glyph_hints_done( hints );
134	}	140	}
135		141
Lines 404-410 Link Here
404		410
405	if ( !error )	411	if ( !error )
406	{	412	{
407	af_latin_metrics_init_widths( metrics, face );	413	/* For now, compute the standard width and height from the `o'. */
		414	af_latin_metrics_init_widths( metrics, face, 'o' );
408	af_latin_metrics_init_blues( metrics, face );	415	af_latin_metrics_init_blues( metrics, face );
409	}	416	}
410		417
Lines 559-564 Link Here
559	af_latin_metrics_scale( AF_LatinMetrics metrics,	566	af_latin_metrics_scale( AF_LatinMetrics metrics,
560	AF_Scaler scaler )	567	AF_Scaler scaler )
561	{	568	{
		569	metrics->root.scaler.render_mode = scaler->render_mode;
		570
562	af_latin_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ );	571	af_latin_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ );
563	af_latin_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT );	572	af_latin_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT );
564	}	573	}
Lines 739-744 Link Here
739	segment->last = point;	748	segment->last = point;
740	segment->contour = contour;	749	segment->contour = contour;
741	segment->score = 32000;	750	segment->score = 32000;
		751	segment->len = 0;
742	segment->link = NULL;	752	segment->link = NULL;
743	on_edge = 1;	753	on_edge = 1;
744		754
Lines 805-810 Link Here
805	segment->last = min_point;	815	segment->last = min_point;
806	segment->pos = min_pos;	816	segment->pos = min_pos;
807	segment->score = 32000;	817	segment->score = 32000;
		818	segment->len = 0;
808	segment->link = NULL;	819	segment->link = NULL;
809		820
810	segment = NULL;	821	segment = NULL;
Lines 824-829 Link Here
824	segment->last = max_point;	835	segment->last = max_point;
825	segment->pos = max_pos;	836	segment->pos = max_pos;
826	segment->score = 32000;	837	segment->score = 32000;
		838	segment->len = 0;
827	segment->link = NULL;	839	segment->link = NULL;
828		840
829	segment = NULL;	841	segment = NULL;
Lines 844-852 Link Here
844	AF_Segment segments = axis->segments;	856	AF_Segment segments = axis->segments;
845	AF_Segment segment_limit = segments + axis->num_segments;	857	AF_Segment segment_limit = segments + axis->num_segments;
846	AF_Direction major_dir = axis->major_dir;	858	AF_Direction major_dir = axis->major_dir;
		859	FT_UShort len_threshold, len_score;
847	AF_Segment seg1, seg2;	860	AF_Segment seg1, seg2;
848		861
849		862
		863	len_threshold = AF_LATIN_CONSTANT( hints->metrics, 8 );
		864	if ( len_threshold == 0 )
		865	len_threshold = 1;
		866
		867	len_score = AF_LATIN_CONSTANT( hints->metrics, 3000 );
		868
850	/* now compare each segment to the others */	869	/* now compare each segment to the others */
851	for ( seg1 = segments; seg1 < segment_limit; seg1++ )	870	for ( seg1 = segments; seg1 < segment_limit; seg1++ )
852	{	871	{
Lines 879-887 Link Here
879	max = seg2->max_coord;	898	max = seg2->max_coord;
880		899
881	len = max - min;	900	len = max - min;
882	if ( len >= 8 )	901	if ( len >= len_threshold )
883	{	902	{
884	score = dist + 3000 / len;	903	score = dist + len_score / len;
885		904
886	if ( score < seg1->score )	905	if ( score < seg1->score )
887	{	906	{
Lines 1292-1297 Link Here
1292	AF_LatinMetrics metrics )	1311	AF_LatinMetrics metrics )
1293	{	1312	{
1294	FT_Render_Mode mode;	1313	FT_Render_Mode mode;
		1314	FT_UInt32 scaler_flags, other_flags;
1295		1315
1296		1316
1297	af_glyph_hints_rescale( hints, (AF_ScriptMetrics)metrics );	1317	af_glyph_hints_rescale( hints, (AF_ScriptMetrics)metrics );
Lines 1305-1336 Link Here
1305	hints->y_scale = metrics->axis[AF_DIMENSION_VERT].scale;	1325	hints->y_scale = metrics->axis[AF_DIMENSION_VERT].scale;
1306	hints->y_delta = metrics->axis[AF_DIMENSION_VERT].delta;	1326	hints->y_delta = metrics->axis[AF_DIMENSION_VERT].delta;
1307		1327
1308	/* compute flags depending on render mode, etc... */	1328	/* compute flags depending on render mode, etc. */
1309
1310	mode = metrics->root.scaler.render_mode;	1329	mode = metrics->root.scaler.render_mode;
1311		1330
		1331	#ifdef AF_USE_WARPER
		1332	if ( mode == FT_RENDER_MODE_LCD \|\| mode == FT_RENDER_MODE_LCD_V )
		1333	{
		1334	metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL;
		1335	}
		1336	#endif
		1337
		1338	scaler_flags = hints->scaler_flags;
		1339	other_flags = 0;
		1340
1312	/*	1341	/*
1313	* We snap the width of vertical stems for the monochrome and	1342	* We snap the width of vertical stems for the monochrome and
1314	* horizontal LCD rendering targets only.	1343	* horizontal LCD rendering targets only.
1315	*/	1344	*/
1316	if ( mode == FT_RENDER_MODE_MONO \|\| mode == FT_RENDER_MODE_LCD )	1345	if ( mode == FT_RENDER_MODE_MONO \|\| mode == FT_RENDER_MODE_LCD )
1317	hints->other_flags \|= AF_LATIN_HINTS_HORZ_SNAP;	1346	other_flags \|= AF_LATIN_HINTS_HORZ_SNAP;
1318		1347
1319	/*	1348	/*
1320	* We snap the width of horizontal stems for the monochrome and	1349	* We snap the width of horizontal stems for the monochrome and
1321	* vertical LCD rendering targets only.	1350	* vertical LCD rendering targets only.
1322	*/	1351	*/
1323	if ( mode == FT_RENDER_MODE_MONO \|\| mode == FT_RENDER_MODE_LCD_V )	1352	if ( mode == FT_RENDER_MODE_MONO \|\| mode == FT_RENDER_MODE_LCD_V )
1324	hints->other_flags \|= AF_LATIN_HINTS_VERT_SNAP;	1353	other_flags \|= AF_LATIN_HINTS_VERT_SNAP;
1325		1354
1326	/*	1355	/*
1327	* We adjust stems to full pixels only if we don't use the `light' mode.	1356	* We adjust stems to full pixels only if we don't use the `light' mode.
1328	*/	1357	*/
1329	if ( mode != FT_RENDER_MODE_LIGHT )	1358	if ( mode != FT_RENDER_MODE_LIGHT )
1330	hints->other_flags \|= AF_LATIN_HINTS_STEM_ADJUST;	1359	other_flags \|= AF_LATIN_HINTS_STEM_ADJUST;
1331		1360
1332	if ( mode == FT_RENDER_MODE_MONO )	1361	if ( mode == FT_RENDER_MODE_MONO )
1333	hints->other_flags \|= AF_LATIN_HINTS_MONO;	1362	other_flags \|= AF_LATIN_HINTS_MONO;
		1363
		1364	/*
		1365	* In `light' hinting mode we disable horizontal hinting completely.
		1366	*/
		1367	if ( mode == FT_RENDER_MODE_LIGHT )
		1368	scaler_flags \|= AF_SCALER_FLAG_NO_HORIZONTAL;
		1369
		1370	hints->scaler_flags = scaler_flags;
		1371	hints->other_flags = other_flags;
1334		1372
1335	return 0;	1373	return 0;
1336	}	1374	}
Lines 1405-1411 Link Here
1405	AF_LatinAxis axis = & metrics->axis[dim];	1443	AF_LatinAxis axis = & metrics->axis[dim];
1406	FT_Pos dist = width;	1444	FT_Pos dist = width;
1407	FT_Int sign = 0;	1445	FT_Int sign = 0;
1408	FT_Int vertical = AF_HINTS_DO_VERTICAL( hints );	1446	FT_Int vertical = ( dim == AF_DIMENSION_VERT );
1409		1447
1410		1448
1411	if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) )	1449	if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) )
Lines 1926-1931 Link Here
1926	if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) \|\|	1964	if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) \|\|
1927	( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) ) )	1965	( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) ) )
1928	{	1966	{
		1967	#ifdef AF_USE_WARPER
		1968	if ( dim == AF_DIMENSION_HORZ &&
		1969	metrics->root.scaler.render_mode == FT_RENDER_MODE_NORMAL )
		1970	{
		1971	AF_WarperRec warper;
		1972	FT_Fixed scale;
		1973	FT_Pos delta;
		1974
		1975
		1976	af_warper_compute( &warper, hints, dim, &scale, &delta );
		1977	af_glyph_hints_scale_dim( hints, dim, scale, delta );
		1978	continue;
		1979	}
		1980	#endif
1929	af_latin_hint_edges( hints, (AF_Dimension)dim );	1981	af_latin_hint_edges( hints, (AF_Dimension)dim );
1930	af_glyph_hints_align_edge_points( hints, (AF_Dimension)dim );	1982	af_glyph_hints_align_edge_points( hints, (AF_Dimension)dim );
1931	af_glyph_hints_align_strong_points( hints, (AF_Dimension)dim );	1983	af_glyph_hints_align_strong_points( hints, (AF_Dimension)dim );

Lines 4-10 Link Here

(-)freetype-2.1.10.old/src/autofit/aflatin.h (-1 / +10 lines)
4	/* */	4	/* */
5	/* Auto-fitter hinting routines for latin script (specification). */	5	/* Auto-fitter hinting routines for latin script (specification). */
6	/* */	6	/* */
7	/* Copyright 2003, 2004, 2005 by */	7	/* Copyright 2003, 2004, 2005, 2006 by */
8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */	8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */
9	/* */	9	/* */
10	/* This file is part of the FreeType project, and may only be used, */	10	/* This file is part of the FreeType project, and may only be used, */
Lines 31-36 Link Here
31	af_latin_script_class;	31	af_latin_script_class;
32		32
33		33
		34	/* constants are given with units_per_em == 2048 in mind */
		35	#define AF_LATIN_CONSTANT( metrics, c ) \
		36	( ( (c) * (FT_Long)( (AF_LatinMetrics)(metrics) )->units_per_em ) / 2048 )
		37
		38
34	/*************************************************************************/	39	/*************************************************************************/
35	/*************************************************************************/	40	/*************************************************************************/
36	/*** ***/	41	/*** ***/
Lines 126-131 Link Here
126	af_latin_metrics_scale( AF_LatinMetrics metrics,	131	af_latin_metrics_scale( AF_LatinMetrics metrics,
127	AF_Scaler scaler );	132	AF_Scaler scaler );
128		133
		134	FT_LOCAL( void )
		135	af_latin_metrics_init_widths( AF_LatinMetrics metrics,
		136	FT_Face face,
		137	FT_ULong charcode );
129		138
130		139
131	/*************************************************************************/	140	/*************************************************************************/




/*                                                                         */
/*    Auto-fitter glyph loading 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,       */


      /* 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;


      /* we now need to hint the metrics according to the change in */
      /* width/positioning that occured during the hinting process  */
      {
#ifndef AF_USE_WARPER
        FT_Pos        old_advance, old_rsb, old_lsb, new_lsb;
        FT_Pos        pp1x_uh, pp2x_uh;
        AF_AxisHints  axis  = &hints->axis[AF_DIMENSION_HORZ];

                              axis->num_edges - 1; /* rightmost edge */


        if ( axis->num_edges > 1 && AF_HINTS_DO_ADVANCE( hints ) )
        {
          old_advance = loader->pp2.x;
          old_rsb     = old_advance - edge2->opos;


        }
        else
#endif /* !AF_USE_WARPER */
        {
          loader->pp1.x = FT_PIX_ROUND( loader->pp1.x );
          loader->pp2.x = FT_PIX_ROUND( loader->pp2.x );

  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 );
      }

      /* we must translate our final outline by -pp1.x and compute */
      /* the new metrics                                           */

      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

                                               metrics->scaler.x_scale );
#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 );




/*                                                                         */
/*    Auto-fitter types (specification only).                              */
/*                                                                         */
/*  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,       */

/***************************************************************************/


  /*************************************************************************
   *
   *  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 compartimentized 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 xxAF_USE_WARPER  /* only define to use warp hinting */
#define xxAF_DEBUG

#ifdef AF_DEBUG

                 FT_Pos  dy );


#if 0
  /*
   *  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


  /*************************************************************************/

  {
    AF_SCRIPT_NONE  = 0,
    AF_SCRIPT_LATIN = 1,
    AF_SCRIPT_CJK   = 2,
    /* add new scripts here.  Don't forget to update the list in */
    /* `afglobal.c'.                                             */





/***************************************************************************/
/*                                                                         */
/*  afwarp.c                                                               */
/*                                                                         */
/*    Auto-fitter warping algorithm (body).                                */
/*                                                                         */
/*  Copyright 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 "afwarp.h"

#ifdef AF_USE_WARPER

#if 1
  static const AF_WarpScore
  af_warper_weights[64] =
  {
    35, 20, 20, 20, 15, 12, 10,  5,  2,  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,  2,  5, 10, 12, 15, 20, 20, 20,
  };
#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[64];


    for ( nn = 0; nn < 64; 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 - ( xx2 - xx1 );

      xx1max = warper->x1max;
      if ( xx1max + w > warper->x2max )
        xx1max = warper->x2max - ( xx2 - xx1 );

      idx_min = xx1min - warper->t1;
      idx_max = xx1max - warper->t1;

      if ( idx_min > idx_max )
      {
        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   = 0;
    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 ( axis->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 ( warper->wmin < warper->w0 - 32 )
      warper->wmin = warper->w0 - 32;

    if ( warper->wmax > warper->w0 + 32 )
      warper->wmax = warper->w0 + 32;

    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;

    /* warper->wmin = warper->wmax = warper->w0; */

    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 );
    }

    *a_scale = warper->best_scale;
    *a_delta = warper->best_delta;
  }

#else /* !AF_USE_WARPER */

char  af_warper_dummy = 0;  /* make compiler happy */

#endif /* !AF_USE_WARPER */

/* END */




/***************************************************************************/
/*                                                                         */
/*  afwarp.h                                                               */
/*                                                                         */
/*    Auto-fitter warping algorithm (specification).                       */
/*                                                                         */
/*  Copyright 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.                                        */
/*                                                                         */
/***************************************************************************/


#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_Int        X1, X2;
    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 */

Lines 4-10 Link Here

(-)freetype-2.1.10.old/src/autofit/autofit.c (-1 / +5 lines)
4	/* */	4	/* */
5	/* Auto-fitter module (body). */	5	/* Auto-fitter module (body). */
6	/* */	6	/* */
7	/* Copyright 2003, 2004, 2005 by */	7	/* Copyright 2003, 2004, 2005, 2006 by */
8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */	8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */
9	/* */	9	/* */
10	/* This file is part of the FreeType project, and may only be used, */	10	/* This file is part of the FreeType project, and may only be used, */
Lines 23-30 Link Here
23	#include "afhints.c"	23	#include "afhints.c"
24	#include "afdummy.c"	24	#include "afdummy.c"
25	#include "aflatin.c"	25	#include "aflatin.c"
		26	#include "afcjk.c"
26	#include "afloader.c"	27	#include "afloader.c"
27	#include "afmodule.c"	28	#include "afmodule.c"
28		29
		30	#ifdef AF_USE_WARPER
		31	#include "afwarp.c"
		32	#endif
29		33
30	/* END */	34	/* END */

Lines 1-6 Link Here

(-)freetype-2.1.10.old/src/autofit/Jamfile (-2 / +2 lines)
1	# FreeType 2 src/autofit Jamfile	1	# FreeType 2 src/autofit Jamfile
2	#	2	#
3	# Copyright 2003, 2004, 2005 by	3	# Copyright 2003, 2004, 2005, 2006 by
4	# David Turner, Robert Wilhelm, and Werner Lemberg.	4	# David Turner, Robert Wilhelm, and Werner Lemberg.
5	#	5	#
6	# This file is part of the FreeType project, and may only be used, modified,	6	# This file is part of the FreeType project, and may only be used, modified,
Lines 16-22 Link Here
16		16
17	if $(FT2_MULTI)	17	if $(FT2_MULTI)
18	{	18	{
19	_sources = afangles afglobal afhints aflatin afloader afmodule afdummy ;	19	_sources = afangles afglobal afhints aflatin afloader afmodule afdummy afwarp afcjk;
20	}	20	}
21	else	21	else
22	{	22	{




#


# 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,

                 $(AUTOF_DIR)/afglobal.c \
                 $(AUTOF_DIR)/afhints.c  \
                 $(AUTOF_DIR)/aflatin.c  \
                 $(AUTOF_DIR)/afcjk.c    \
                 $(AUTOF_DIR)/afloader.c \
                 $(AUTOF_DIR)/afmodule.c \
                 $(AUTOF_DIR)/afwarp.c

# AUTOF driver headers
#

Return to bug 157441

Lines 117-122 Link Here

(-)freetype-2.1.10.old/include/freetype/internal/ftgloadr.h (+17 lines)
117	FT_UInt n_points,	117	FT_UInt n_points,
118	FT_UInt n_contours );	118	FT_UInt n_contours );
119		119
		120	#define FT_GLYPHLOADER_CHECK_P( _loader, _count ) \
		121	( (_count) == 0 \|\| (int)((_loader)->base.outline.n_points + \
		122	(_loader)->current.outline.n_points + \
		123	(_count)) <= (int)(_loader)->max_points )
		124
		125	#define FT_GLYPHLOADER_CHECK_C( _loader, _count ) \
		126	( (_count) == 0 \|\| (int)((_loader)->base.outline.n_contours + \
		127	(_loader)->current.outline.n_contours + \
		128	(_count)) <= (int)(_loader)->max_contours )
		129
		130	#define FT_GLYPHLOADER_CHECK_POINTS( _loader, _points,_contours ) \
		131	( ( FT_GLYPHLOADER_CHECK_P( _loader, _points ) && \
		132	FT_GLYPHLOADER_CHECK_C( _loader, _contours ) ) \
		133	? 0 \
		134	: FT_GlyphLoader_CheckPoints( (_loader), (_points), (_contours) ) )
		135
		136
120	/* check that there is enough space to add `n_subs' sub-glyphs to */	137	/* check that there is enough space to add `n_subs' sub-glyphs to */
121	/* a glyph loader */	138	/* a glyph loader */
122	FT_BASE( FT_Error )	139	FT_BASE( FT_Error )

Line 0 Link Here

(-)freetype-2.1.10.old/src/autofit/afcjk.h (+41 lines)
	1	/***************************************************************************/
	2	/* */
	3	/* afcjk.h */
	4	/* */
	5	/* Auto-fitter hinting routines for CJK script (specification). */
	6	/* */
	7	/* Copyright 2006 by */
	8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */
	9	/* */
	10	/* This file is part of the FreeType project, and may only be used, */
	11	/* modified, and distributed under the terms of the FreeType project */
	12	/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
	13	/* this file you indicate that you have read the license and */
	14	/* understand and accept it fully. */
	15	/* */
	16	/***************************************************************************/
	17
	18
	19	#ifndef __AFCJK_H__
	20	#define __AFCJK_H__
	21
	22	#include "afhints.h"
	23
	24
	25	FT_BEGIN_HEADER
	26
	27
	28	/* the CJK-specific script class */
	29
	30	FT_CALLBACK_TABLE const AF_ScriptClassRec
	31	af_cjk_script_class;
	32
	33
	34	/* */
	35
	36	FT_END_HEADER
	37
	38	#endif /* __AFCJK_H__ */
	39
	40
	41	/* END */

Lines 4-10 Link Here

(-)freetype-2.1.10.old/src/autofit/afglobal.c (-1 / +3 lines)
4	/* */	4	/* */
5	/* Auto-fitter routines to compute global hinting values (body). */	5	/* Auto-fitter routines to compute global hinting values (body). */
6	/* */	6	/* */
7	/* Copyright 2003, 2004, 2005 by */	7	/* Copyright 2003, 2004, 2005, 2006 by */
8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */	8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */
9	/* */	9	/* */
10	/* This file is part of the FreeType project, and may only be used, */	10	/* This file is part of the FreeType project, and may only be used, */
Lines 19-24 Link Here
19	#include "afglobal.h"	19	#include "afglobal.h"
20	#include "afdummy.h"	20	#include "afdummy.h"
21	#include "aflatin.h"	21	#include "aflatin.h"
		22	#include "afcjk.h"
22	#include "aferrors.h"	23	#include "aferrors.h"
23		24
24		25
Lines 27-32 Link Here
27	{	28	{
28	&af_dummy_script_class,	29	&af_dummy_script_class,
29	&af_latin_script_class,	30	&af_latin_script_class,
		31	&af_cjk_script_class,
30		32
31	NULL /* do not remove */	33	NULL /* do not remove */
32	};	34	};

Lines 4-10 Link Here

(-)freetype-2.1.10.old/src/autofit/afhints.c (-8 / +89 lines)
4	/* */	4	/* */
5	/* Auto-fitter hinting routines (body). */	5	/* Auto-fitter hinting routines (body). */
6	/* */	6	/* */
7	/* Copyright 2003, 2004, 2005 by */	7	/* Copyright 2003, 2004, 2005, 2006 by */
8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */	8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */
9	/* */	9	/* */
10	/* This file is part of the FreeType project, and may only be used, */	10	/* This file is part of the FreeType project, and may only be used, */
Lines 265-275 Link Here
265	#endif /* AF_DEBUG */	265	#endif /* AF_DEBUG */
266		266
267		267
		268
268	/* compute the direction value of a given vector */	269	/* compute the direction value of a given vector */
269	FT_LOCAL_DEF( AF_Direction )	270	FT_LOCAL_DEF( AF_Direction )
270	af_direction_compute( FT_Pos dx,	271	af_direction_compute( FT_Pos dx,
271	FT_Pos dy )	272	FT_Pos dy )
272	{	273	{
		274	#if 1
		275	AF_Direction dir = AF_DIR_NONE;
		276
		277
		278	/* atan(1/12) == 4.7 degrees */
		279
		280	if ( dx < 0 )
		281	{
		282	if ( dy < 0 )
		283	{
		284	if ( -dx * 12 < -dy )
		285	dir = AF_DIR_DOWN;
		286
		287	else if ( -dy * 12 < -dx )
		288	dir = AF_DIR_LEFT;
		289	}
		290	else /* dy >= 0 */
		291	{
		292	if ( -dx * 12 < dy )
		293	dir = AF_DIR_UP;
		294
		295	else if ( dy * 12 < -dx )
		296	dir = AF_DIR_LEFT;
		297	}
		298	}
		299	else /* dx >= 0 */
		300	{
		301	if ( dy < 0 )
		302	{
		303	if ( dx * 12 < -dy )
		304	dir = AF_DIR_DOWN;
		305
		306	else if ( -dy * 12 < dx )
		307	dir = AF_DIR_RIGHT;
		308	}
		309	else /* dy >= 0 */
		310	{
		311	if ( dx * 12 < dy )
		312	dir = AF_DIR_UP;
		313
		314	else if ( dy * 12 < dx )
		315	dir = AF_DIR_RIGHT;
		316	}
		317	}
		318
		319	return dir;
		320
		321	#else /* 0 */
		322
273	AF_Direction dir;	323	AF_Direction dir;
274	FT_Pos ax = FT_ABS( dx );	324	FT_Pos ax = FT_ABS( dx );
275	FT_Pos ay = FT_ABS( dy );	325	FT_Pos ay = FT_ABS( dy );
Lines 291-296 Link Here
291	}	341	}
292		342
293	return dir;	343	return dir;
		344
		345	#endif /* 0 */
		346
294	}	347	}
295		348
296		349
Lines 349-356 Link Here
349		402
350	} while ( angle_in == angle_seg );	403	} while ( angle_in == angle_seg );
351		404
352	first = start;	405	first = start;
353	diff_in = af_angle_diff( angle_in, angle_seg );	406
		407	AF_ANGLE_DIFF( diff_in, angle_in, angle_seg );
354		408
355	/* now, process all segments in the contour */	409	/* now, process all segments in the contour */
356	do	410	do
Lines 373-379 Link Here
373		427
374	} while ( angle_out == angle_seg );	428	} while ( angle_out == angle_seg );
375		429
376	diff_out = af_angle_diff( angle_seg, angle_out );	430	AF_ANGLE_DIFF( diff_out, angle_seg, angle_out );
377		431
378	if ( ( diff_in ^ diff_out ) < 0 )	432	if ( ( diff_in ^ diff_out ) < 0 )
379	{	433	{
Lines 455-461 Link Here
455	af_glyph_hints_rescale( AF_GlyphHints hints,	509	af_glyph_hints_rescale( AF_GlyphHints hints,
456	AF_ScriptMetrics metrics )	510	AF_ScriptMetrics metrics )
457	{	511	{
458	hints->metrics = metrics;	512	hints->metrics = metrics;
		513	hints->scaler_flags = metrics->scaler.flags;
459	}	514	}
460		515
461		516
Lines 466-472 Link Here
466	FT_Error error = AF_Err_Ok;	521	FT_Error error = AF_Err_Ok;
467	AF_Point points;	522	AF_Point points;
468	FT_UInt old_max, new_max;	523	FT_UInt old_max, new_max;
469	AF_Scaler scaler = &hints->metrics->scaler;
470	FT_Fixed x_scale = hints->x_scale;	524	FT_Fixed x_scale = hints->x_scale;
471	FT_Fixed y_scale = hints->y_scale;	525	FT_Fixed y_scale = hints->y_scale;
472	FT_Pos x_delta = hints->x_delta;	526	FT_Pos x_delta = hints->x_delta;
Lines 474-480 Link Here
474	FT_Memory memory = hints->memory;	528	FT_Memory memory = hints->memory;
475		529
476		530
477	hints->scaler_flags = scaler->flags;
478	hints->num_points = 0;	531	hints->num_points = 0;
479	hints->num_contours = 0;	532	hints->num_contours = 0;
480		533
Lines 657-663 Link Here
657		710
658	angle_in = af_angle_atan( in_x, in_y );	711	angle_in = af_angle_atan( in_x, in_y );
659	angle_out = af_angle_atan( out_x, out_y );	712	angle_out = af_angle_atan( out_x, out_y );
660	delta = af_angle_diff( angle_in, angle_out );	713
		714	AF_ANGLE_DIFF( delta, angle_in, angle_out );
661		715
662	if ( delta < 2 && delta > -2 )	716	if ( delta < 2 && delta > -2 )
663	goto Is_Weak_Point;	717	goto Is_Weak_Point;
Lines 1087-1090 Link Here
1087	}	1141	}
1088		1142
1089		1143
		1144	#ifdef AF_USE_WARPER
		1145
		1146	FT_LOCAL_DEF( void )
		1147	af_glyph_hints_scale_dim( AF_GlyphHints hints,
		1148	AF_Dimension dim,
		1149	FT_Fixed scale,
		1150	FT_Pos delta )
		1151	{
		1152	AF_Point points = hints->points;
		1153	AF_Point points_limit = points + hints->num_points;
		1154	AF_Point point;
		1155
		1156
		1157	if ( dim == AF_DIMENSION_HORZ )
		1158	{
		1159	for ( point = points; point < points_limit; point++ )
		1160	point->x = FT_MulFix( point->fx, scale ) + delta;
		1161	}
		1162	else
		1163	{
		1164	for ( point = points; point < points_limit; point++ )
		1165	point->y = FT_MulFix( point->fy, scale ) + delta;
		1166	}
		1167	}
		1168
		1169	#endif /* AF_USE_WARPER */
		1170
1090	/* END */	1171	/* END */

Lines 4-10 Link Here

(-)freetype-2.1.10.old/src/autofit/afloader.c (-6 / +24 lines)
4	/* */	4	/* */
5	/* Auto-fitter glyph loading routines (body). */	5	/* Auto-fitter glyph loading routines (body). */
6	/* */	6	/* */
7	/* Copyright 2003, 2004, 2005 by */	7	/* Copyright 2003, 2004, 2005, 2006 by */
8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */	8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */
9	/* */	9	/* */
10	/* This file is part of the FreeType project, and may only be used, */	10	/* This file is part of the FreeType project, and may only be used, */
Lines 138-146 Link Here
138		138
139	/* copy the outline points in the loader's current */	139	/* copy the outline points in the loader's current */
140	/* extra points which is used to keep original glyph coordinates */	140	/* extra points which is used to keep original glyph coordinates */
141	error = FT_GlyphLoader_CheckPoints( gloader,	141	error = FT_GLYPHLOADER_CHECK_POINTS( gloader,
142	slot->outline.n_points + 4,	142	slot->outline.n_points + 4,
143	slot->outline.n_contours );	143	slot->outline.n_contours );
144	if ( error )	144	if ( error )
145	goto Exit;	145	goto Exit;
146		146
Lines 184-189 Link Here
184	/* we now need to hint the metrics according to the change in */	184	/* we now need to hint the metrics according to the change in */
185	/* width/positioning that occured during the hinting process */	185	/* width/positioning that occured during the hinting process */
186	{	186	{
		187	#ifndef AF_USE_WARPER
187	FT_Pos old_advance, old_rsb, old_lsb, new_lsb;	188	FT_Pos old_advance, old_rsb, old_lsb, new_lsb;
188	FT_Pos pp1x_uh, pp2x_uh;	189	FT_Pos pp1x_uh, pp2x_uh;
189	AF_AxisHints axis = &hints->axis[AF_DIMENSION_HORZ];	190	AF_AxisHints axis = &hints->axis[AF_DIMENSION_HORZ];
Lines 192-198 Link Here
192	axis->num_edges - 1; /* rightmost edge */	193	axis->num_edges - 1; /* rightmost edge */
193		194
194		195
195	if ( axis->num_edges > 1 )	196	if ( axis->num_edges > 1 && AF_HINTS_DO_ADVANCE( hints ) )
196	{	197	{
197	old_advance = loader->pp2.x;	198	old_advance = loader->pp2.x;
198	old_rsb = old_advance - edge2->opos;	199	old_rsb = old_advance - edge2->opos;
Lines 228-233 Link Here
228		229
229	}	230	}
230	else	231	else
		232	#endif /* !AF_USE_WARPER */
231	{	233	{
232	loader->pp1.x = FT_PIX_ROUND( loader->pp1.x );	234	loader->pp1.x = FT_PIX_ROUND( loader->pp1.x );
233	loader->pp2.x = FT_PIX_ROUND( loader->pp2.x );	235	loader->pp2.x = FT_PIX_ROUND( loader->pp2.x );
Lines 376-387 Link Here
376	Hint_Metrics:	378	Hint_Metrics:
377	if ( depth == 0 )	379	if ( depth == 0 )
378	{	380	{
379	FT_BBox bbox;	381	FT_BBox bbox;
		382	FT_Vector vvector;
380		383
381		384
		385	vvector.x = slot->metrics.vertBearingX - slot->metrics.horiBearingX;
		386	vvector.y = slot->metrics.vertBearingY - slot->metrics.horiBearingY;
		387	vvector.x = FT_MulFix( vvector.x, metrics->scaler.x_scale );
		388	vvector.y = FT_MulFix( vvector.y, metrics->scaler.y_scale );
		389
382	/* transform the hinted outline if needed */	390	/* transform the hinted outline if needed */
383	if ( loader->transformed )	391	if ( loader->transformed )
		392	{
384	FT_Outline_Transform( &gloader->base.outline, &loader->trans_matrix );	393	FT_Outline_Transform( &gloader->base.outline, &loader->trans_matrix );
		394	FT_Vector_Transform( &vvector, &loader->trans_matrix );
		395	}
385		396
386	/* we must translate our final outline by -pp1.x and compute */	397	/* we must translate our final outline by -pp1.x and compute */
387	/* the new metrics */	398	/* the new metrics */
Lines 400-405 Link Here
400	slot->metrics.horiBearingX = bbox.xMin;	411	slot->metrics.horiBearingX = bbox.xMin;
401	slot->metrics.horiBearingY = bbox.yMax;	412	slot->metrics.horiBearingY = bbox.yMax;
402		413
		414	slot->metrics.vertBearingX = FT_PIX_FLOOR( bbox.xMin + vvector.x );
		415	slot->metrics.vertBearingY = FT_PIX_FLOOR( bbox.yMax + vvector.y );
		416
403	/* for mono-width fonts (like Andale, Courier, etc.) we need */	417	/* for mono-width fonts (like Andale, Courier, etc.) we need */
404	/* to keep the original rounded advance width */	418	/* to keep the original rounded advance width */
405	#if 0	419	#if 0
Lines 416-422 Link Here
416	metrics->scaler.x_scale );	430	metrics->scaler.x_scale );
417	#endif	431	#endif
418		432
		433	slot->metrics.vertAdvance = FT_MulFix( slot->metrics.vertAdvance,
		434	metrics->scaler.y_scale );
		435
419	slot->metrics.horiAdvance = FT_PIX_ROUND( slot->metrics.horiAdvance );	436	slot->metrics.horiAdvance = FT_PIX_ROUND( slot->metrics.horiAdvance );
		437	slot->metrics.vertAdvance = FT_PIX_ROUND( slot->metrics.vertAdvance );
420		438
421	/* now copy outline into glyph slot */	439	/* now copy outline into glyph slot */
422	FT_GlyphLoader_Rewind( internal->loader );	440	FT_GlyphLoader_Rewind( internal->loader );

Lines 4-10 Link Here

(-)freetype-2.1.10.old/src/autofit/aftypes.h (-15 / +35 lines)
4	/* */	4	/* */
5	/* Auto-fitter types (specification only). */	5	/* Auto-fitter types (specification only). */
6	/* */	6	/* */
7	/* Copyright 2003, 2004, 2005 by */	7	/* Copyright 2003, 2004, 2005, 2006 by */
8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */	8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */
9	/* */	9	/* */
10	/* This file is part of the FreeType project, and may only be used, */	10	/* This file is part of the FreeType project, and may only be used, */
Lines 16-35 Link Here
16	/***************************************************************************/	16	/***************************************************************************/
17		17
18		18
19	/***************************************************************************	19	/*************************************************************************
20	*	20	*
21	* The auto-fitter is a complete rewrite of the old auto-hinter.	21	* The auto-fitter is a complete rewrite of the old auto-hinter.
22	* Its main feature is the ability to differentiate between different	22	* Its main feature is the ability to differentiate between different
23	* scripts in order to apply language-specific rules.	23	* scripts in order to apply language-specific rules.
24	*	24	*
25	* The code has also been compartimentized into several entities that	25	* The code has also been compartimentized into several entities that
26	* should make algorithmic experimentation easier than with the old	26	* should make algorithmic experimentation easier than with the old
27	* code.	27	* code.
28	*	28	*
29	* Finally, we get rid of the Catharon license, since this code is	29	* Finally, we get rid of the Catharon license, since this code is
30	* released under the FreeType one.	30	* released under the FreeType one.
31	*	31	*
32	***************************************************************************/	32	*************************************************************************/
33		33
34		34
35	#ifndef __AFTYPES_H__	35	#ifndef __AFTYPES_H__
Lines 53-58 Link Here
53	/*************************************************************************/	53	/*************************************************************************/
54	/*************************************************************************/	54	/*************************************************************************/
55		55
		56	#define xxAF_USE_WARPER /* only define to use warp hinting */
56	#define xxAF_DEBUG	57	#define xxAF_DEBUG
57		58
58	#ifdef AF_DEBUG	59	#ifdef AF_DEBUG
Lines 125-130 Link Here
125	FT_Pos dy );	126	FT_Pos dy );
126		127
127		128
		129	#if 0
128	/*	130	/*
129	* compute `angle2 - angle1'; the result is always within	131	* compute `angle2 - angle1'; the result is always within
130	* the range [-AF_ANGLE_PI .. AF_ANGLE_PI - 1]	132	* the range [-AF_ANGLE_PI .. AF_ANGLE_PI - 1]
Lines 132-137 Link Here
132	FT_LOCAL( AF_Angle )	134	FT_LOCAL( AF_Angle )
133	af_angle_diff( AF_Angle angle1,	135	af_angle_diff( AF_Angle angle1,
134	AF_Angle angle2 );	136	AF_Angle angle2 );
		137	#endif /* 0 */
		138
		139
		140	#define AF_ANGLE_DIFF( result, angle1, angle2 ) \
		141	FT_BEGIN_STMNT \
		142	AF_Angle _delta = (angle2) - (angle1); \
		143	\
		144	\
		145	_delta %= AF_ANGLE_2PI; \
		146	if ( _delta < 0 ) \
		147	_delta += AF_ANGLE_2PI; \
		148	\
		149	if ( _delta > AF_ANGLE_PI ) \
		150	_delta -= AF_ANGLE_2PI; \
		151	\
		152	result = _delta; \
		153	FT_END_STMNT
135		154
136		155
137	/*************************************************************************/	156	/*************************************************************************/
Lines 240-245 Link Here
240	{	259	{
241	AF_SCRIPT_NONE = 0,	260	AF_SCRIPT_NONE = 0,
242	AF_SCRIPT_LATIN = 1,	261	AF_SCRIPT_LATIN = 1,
		262	AF_SCRIPT_CJK = 2,
243	/* add new scripts here. Don't forget to update the list in */	263	/* add new scripts here. Don't forget to update the list in */
244	/* `afglobal.c'. */	264	/* `afglobal.c'. */
245		265

Line 0 Link Here

(-)freetype-2.1.10.old/src/autofit/afwarp.c (+313 lines)
		1	/***************************************************************************/
		2	/* */
		3	/* afwarp.c */
		4	/* */
		5	/* Auto-fitter warping algorithm (body). */
		6	/* */
		7	/* Copyright 2006 by */
		8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */
		9	/* */
		10	/* This file is part of the FreeType project, and may only be used, */
		11	/* modified, and distributed under the terms of the FreeType project */
		12	/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
		13	/* this file you indicate that you have read the license and */
		14	/* understand and accept it fully. */
		15	/* */
		16	/***************************************************************************/
		17
		18
		19	#include "afwarp.h"
		20
		21	#ifdef AF_USE_WARPER
		22
		23	#if 1
		24	static const AF_WarpScore
		25	af_warper_weights[64] =
		26	{
		27	35, 20, 20, 20, 15, 12, 10, 5, 2, 1, 0, 0, 0, 0, 0, 0,
		28	0, 0, 0, 0, 0, 0, -1, -2, -5, -8,-10,-10,-20,-20,-30,-30,
		29
		30	-30,-30,-20,-20,-10,-10, -8, -5, -2, -1, 0, 0, 0, 0, 0, 0,
		31	0, 0, 0, 0, 0, 0, 0, 1, 2, 5, 10, 12, 15, 20, 20, 20,
		32	};
		33	#else
		34	static const AF_WarpScore
		35	af_warper_weights[64] =
		36	{
		37	30, 20, 10, 5, 4, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0,
		38	0, 0, 0, 0, 0, 0, 0, -1, -2, -2, -5, -5,-10,-10,-15,-20,
		39
		40	-20,-15,-15,-10,-10, -5, -5, -2, -2, -1, 0, 0, 0, 0, 0, 0,
		41	0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 10, 20,
		42	};
		43	#endif
		44
		45
		46	static void
		47	af_warper_compute_line_best( AF_Warper warper,
		48	FT_Fixed scale,
		49	FT_Pos delta,
		50	FT_Pos xx1,
		51	FT_Pos xx2,
		52	AF_WarpScore base_distort,
		53	AF_Segment segments,
		54	FT_UInt num_segments )
		55	{
		56	FT_Int idx_min, idx_max, idx0;
		57	FT_UInt nn;
		58	AF_WarpScore scores[64];
		59
		60
		61	for ( nn = 0; nn < 64; nn++ )
		62	scores[nn] = 0;
		63
		64	idx0 = xx1 - warper->t1;
65
66	/* compute minimum and maximum indices */
67	{
68	FT_Pos xx1min = warper->x1min;
69	FT_Pos xx1max = warper->x1max;
70	FT_Pos w = xx2 - xx1;
71
72
73	if ( xx1min + w < warper->x2min )
74	xx1min = warper->x2min - ( xx2 - xx1 );
75
76	xx1max = warper->x1max;
77	if ( xx1max + w > warper->x2max )
78	xx1max = warper->x2max - ( xx2 - xx1 );
79
80	idx_min = xx1min - warper->t1;
81	idx_max = xx1max - warper->t1;
82
83	if ( idx_min > idx_max )
84	{
85	AF_LOG(( "invalid indices:\n"
86	" min=%d max=%d, xx1=%ld xx2=%ld,\n"
87	" x1min=%ld x1max=%ld, x2min=%ld x2max=%ld\n",
88	idx_min, idx_max, xx1, xx2,
89	warper->x1min, warper->x1max,
90	warper->x2min, warper->x2max ));
91	return;
92	}
93	}
94
95	for ( nn = 0; nn < num_segments; nn++ )
96	{
97	FT_Pos len = segments[nn].max_coord - segments[nn].min_coord;
98	FT_Pos y0 = FT_MulFix( segments[nn].pos, scale ) + delta;
99	FT_Pos y = y0 + ( idx_min - idx0 );
100
101	FT_Int idx;
102
103
104	for ( idx = idx_min; idx <= idx_max; idx++, y++ )
105	scores[idx] += af_warper_weights[y & 63] * len;
106	}
107
108	/* find best score */
109	{
110	FT_Int idx;
111
112
113	for ( idx = idx_min; idx <= idx_max; idx++ )
114	{
115	AF_WarpScore score = scores[idx];
116	AF_WarpScore distort = base_distort + ( idx - idx0 );
117
118
119	if ( score > warper->best_score \|\|
120	( score == warper->best_score &&
121	distort < warper->best_distort ) )
122	{
123	warper->best_score = score;
124	warper->best_distort = distort;
125	warper->best_scale = scale;
126	warper->best_delta = delta + ( idx - idx0 );
127	}
128	}
129	}
130	}
131
132
133	FT_LOCAL_DEF( void )
134	af_warper_compute( AF_Warper warper,
135	AF_GlyphHints hints,
136	AF_Dimension dim,
137	FT_Fixed *a_scale,
138	FT_Pos *a_delta )
139	{
140	AF_AxisHints axis;
141	AF_Point points;
142
143	FT_Fixed org_scale;
144	FT_Pos org_delta;
145
146	FT_UInt nn, num_points, num_segments;
147	FT_Int X1, X2;
148	FT_Int w;
149
150	AF_WarpScore base_distort;
151	AF_Segment segments;
152
153
154	/* get original scaling transformation */
155	if ( dim == AF_DIMENSION_VERT )
156	{
157	org_scale = hints->y_scale;
158	org_delta = hints->y_delta;
159	}
160	else
161	{
162	org_scale = hints->x_scale;
163	org_delta = hints->x_delta;
164	}
165
166	warper->best_scale = org_scale;
167	warper->best_delta = org_delta;
168	warper->best_score = 0;
169	warper->best_distort = 0;
170
171	axis = &hints->axis[dim];
172	segments = axis->segments;
173	num_segments = axis->num_segments;
174	points = hints->points;
175	num_points = hints->num_points;
176
177	*a_scale = org_scale;
178	*a_delta = org_delta;
179
180	/* get X1 and X2, minimum and maximum in original coordinates */
181	if ( axis->num_segments < 1 )
182	return;
183
184	#if 1
185	X1 = X2 = points[0].fx;
186	for ( nn = 1; nn < num_points; nn++ )
187	{
188	FT_Int X = points[nn].fx;
189
190
191	if ( X < X1 )
192	X1 = X;
193	if ( X > X2 )
194	X2 = X;
195	}
196	#else
197	X1 = X2 = segments[0].pos;
198	for ( nn = 1; nn < num_segments; nn++ )
199	{
200	FT_Int X = segments[nn].pos;
201
202
203	if ( X < X1 )
204	X1 = X;
205	if ( X > X2 )
206	X2 = X;
207	}
208	#endif
209
210	if ( X1 >= X2 )
211	return;
212
213	warper->x1 = FT_MulFix( X1, org_scale ) + org_delta;
214	warper->x2 = FT_MulFix( X2, org_scale ) + org_delta;
215
216	warper->t1 = AF_WARPER_FLOOR( warper->x1 );
217	warper->t2 = AF_WARPER_CEIL( warper->x2 );
218
219	warper->x1min = warper->x1 & ~31;
220	warper->x1max = warper->x1min + 32;
221	warper->x2min = warper->x2 & ~31;
222	warper->x2max = warper->x2min + 32;
223
224	if ( warper->x1max > warper->x2 )
225	warper->x1max = warper->x2;
226
227	if ( warper->x2min < warper->x1 )
228	warper->x2min = warper->x1;
229
230	warper->w0 = warper->x2 - warper->x1;
231
232	if ( warper->w0 <= 64 )
233	{
234	warper->x1max = warper->x1;
235	warper->x2min = warper->x2;
236	}
237
238	warper->wmin = warper->x2min - warper->x1max;
239	warper->wmax = warper->x2max - warper->x1min;
240
241	if ( warper->wmin < warper->w0 - 32 )
242	warper->wmin = warper->w0 - 32;
243
244	if ( warper->wmax > warper->w0 + 32 )
245	warper->wmax = warper->w0 + 32;
246
247	if ( warper->wmin < warper->w0 * 3 / 4 )
248	warper->wmin = warper->w0 * 3 / 4;
249
250	if ( warper->wmax > warper->w0 * 5 / 4 )
251	warper->wmax = warper->w0 * 5 / 4;
252
253	/* warper->wmin = warper->wmax = warper->w0; */
254
255	for ( w = warper->wmin; w <= warper->wmax; w++ )
256	{
257	FT_Fixed new_scale;
258	FT_Pos new_delta;
259	FT_Pos xx1, xx2;
260
261
262	xx1 = warper->x1;
263	xx2 = warper->x2;
264	if ( w >= warper->w0 )
265	{
266	xx1 -= w - warper->w0;
267	if ( xx1 < warper->x1min )
268	{
269	xx2 += warper->x1min - xx1;
270	xx1 = warper->x1min;
271	}
272	}
273	else
274	{
275	xx1 -= w - warper->w0;
276	if ( xx1 > warper->x1max )
277	{
278	xx2 -= xx1 - warper->x1max;
279	xx1 = warper->x1max;
280	}
281	}
282
283	if ( xx1 < warper->x1 )
284	base_distort = warper->x1 - xx1;
285	else
286	base_distort = xx1 - warper->x1;
287
288	if ( xx2 < warper->x2 )
289	base_distort += warper->x2 - xx2;
290	else
291	base_distort += xx2 - warper->x2;
292
293	base_distort *= 10;
294
295	new_scale = org_scale + FT_DivFix( w - warper->w0, X2 - X1 );
296	new_delta = xx1 - FT_MulFix( X1, new_scale );
297
298	af_warper_compute_line_best( warper, new_scale, new_delta, xx1, xx2,
299	base_distort,
300	segments, num_segments );
301	}
302
303	*a_scale = warper->best_scale;
304	*a_delta = warper->best_delta;
305	}
306
307	#else /* !AF_USE_WARPER */
308
309	char af_warper_dummy = 0; /* make compiler happy */
310
311	#endif /* !AF_USE_WARPER */
312
313	/* END */

Lines 3-9 Link Here

(-)freetype-2.1.10.old/src/autofit/rules.mk (-2 / +4 lines)
3	#	3	#
4		4
5		5
6	# Copyright 2003, 2004, 2005 by	6	# Copyright 2003, 2004, 2005, 2006 by
7	# David Turner, Robert Wilhelm, and Werner Lemberg.	7	# David Turner, Robert Wilhelm, and Werner Lemberg.
8	#	8	#
9	# This file is part of the FreeType project, and may only be used, modified,	9	# This file is part of the FreeType project, and may only be used, modified,
Lines 30-37 Link Here
30	$(AUTOF_DIR)/afglobal.c \	30	$(AUTOF_DIR)/afglobal.c \
31	$(AUTOF_DIR)/afhints.c \	31	$(AUTOF_DIR)/afhints.c \
32	$(AUTOF_DIR)/aflatin.c \	32	$(AUTOF_DIR)/aflatin.c \
		33	$(AUTOF_DIR)/afcjk.c \
33	$(AUTOF_DIR)/afloader.c \	34	$(AUTOF_DIR)/afloader.c \
34	$(AUTOF_DIR)/afmodule.c	35	$(AUTOF_DIR)/afmodule.c \
		36	$(AUTOF_DIR)/afwarp.c
35		37
36	# AUTOF driver headers	38	# AUTOF driver headers
37	#	39	#