ftgloadr.h File Reference

#include <ft2build.h>

Include dependency graph for ftgloadr.h:

Go to the source code of this file.

Classes
struct	FT_SubGlyphRec_
struct	FT_GlyphLoadRec_
struct	FT_GlyphLoaderRec_

Macros
#define	FT_GLYPHLOADER_CHECK_P(_loader, _count)
#define	FT_GLYPHLOADER_CHECK_C(_loader, _count)
#define	FT_GLYPHLOADER_CHECK_POINTS(_loader, _points, _contours)

Typedefs
typedef FT_BEGIN_HEADER struct FT_SubGlyphRec_	FT_SubGlyphRec
typedef struct FT_GlyphLoadRec_	FT_GlyphLoadRec
typedef struct FT_GlyphLoadRec_ *	FT_GlyphLoad
typedef struct FT_GlyphLoaderRec_	FT_GlyphLoaderRec
typedef struct FT_GlyphLoaderRec_ *	FT_GlyphLoader

Functions
	FT_GlyphLoader_New (FT_Memory memory, FT_GlyphLoader *aloader)
	FT_GlyphLoader_CreateExtra (FT_GlyphLoader loader)
	FT_GlyphLoader_Done (FT_GlyphLoader loader)
	FT_GlyphLoader_Reset (FT_GlyphLoader loader)
	FT_GlyphLoader_Rewind (FT_GlyphLoader loader)
	FT_GlyphLoader_CheckPoints (FT_GlyphLoader loader, FT_UInt n_points, FT_UInt n_contours)
	FT_GlyphLoader_CheckSubGlyphs (FT_GlyphLoader loader, FT_UInt n_subs)
	FT_GlyphLoader_Prepare (FT_GlyphLoader loader)
	FT_GlyphLoader_Add (FT_GlyphLoader loader)
	FT_GlyphLoader_CopyPoints (FT_GlyphLoader target, FT_GlyphLoader source)

Macro Definition Documentation

FT_GLYPHLOADER_CHECK_C

#define FT_GLYPHLOADER_CHECK_C	(		_loader,
			_count
	)

Value:

  ( (_count) == 0                                      || \
    ( (FT_UInt)(_loader)->base.outline.n_contours    +    \
      (FT_UInt)(_loader)->current.outline.n_contours +    \
      (FT_UInt)(_count) ) <= (_loader)->max_contours   )

Definition at line 112 of file ftgloadr.h.

FT_GLYPHLOADER_CHECK_P

#define FT_GLYPHLOADER_CHECK_P	(		_loader,
			_count
	)

Value:

  ( (_count) == 0                                    || \
    ( (FT_UInt)(_loader)->base.outline.n_points    +    \
      (FT_UInt)(_loader)->current.outline.n_points +    \
      (FT_UInt)(_count) ) <= (_loader)->max_points   )

Definition at line 106 of file ftgloadr.h.

FT_GLYPHLOADER_CHECK_POINTS

#define FT_GLYPHLOADER_CHECK_POINTS	(		_loader,
			_points,
			_contours
	)

Value:

  ( ( FT_GLYPHLOADER_CHECK_P( _loader, _points )   &&              \
      FT_GLYPHLOADER_CHECK_C( _loader, _contours ) )               \
    ? 0                                                            \
    : FT_GlyphLoader_CheckPoints( (_loader),                       \
                                  (FT_UInt)(_points),              \
                                  (FT_UInt)(_contours) ) )

Definition at line 118 of file ftgloadr.h.

Typedef Documentation

FT_GlyphLoad

typedef struct FT_GlyphLoadRec_ * FT_GlyphLoad

FT_GlyphLoader

typedef struct FT_GlyphLoaderRec_ * FT_GlyphLoader

FT_GlyphLoaderRec

typedef struct FT_GlyphLoaderRec_ FT_GlyphLoaderRec

FT_GlyphLoadRec

typedef struct FT_GlyphLoadRec_ FT_GlyphLoadRec

FT_SubGlyphRec

typedef FT_BEGIN_HEADER struct FT_SubGlyphRec_ FT_SubGlyphRec

Function Documentation

FT_GlyphLoader_Add()

FT_GlyphLoader_Add

(

FT_GlyphLoader

loader

)

Definition at line 328 of file ftgloadr.c.

  {
    FT_GlyphLoad  base;
    FT_GlyphLoad  current;
 
    FT_Int        n_curr_contours;
    FT_Int        n_base_points;
    FT_Int        n;
 
 
    if ( !loader )
      return;
 
    base    = &loader->base;
    current = &loader->current;
 
    n_curr_contours = current->outline.n_contours;
    n_base_points   = base->outline.n_points;
 
    base->outline.n_points =
      (short)( base->outline.n_points + current->outline.n_points );
    base->outline.n_contours =
      (short)( base->outline.n_contours + current->outline.n_contours );
 
    base->num_subglyphs += current->num_subglyphs;
 
    /* adjust contours count in newest outline */
    for ( n = 0; n < n_curr_contours; n++ )
      current->outline.contours[n] =
        (short)( current->outline.contours[n] + n_base_points );
 
    /* prepare for another new glyph image */
    FT_GlyphLoader_Prepare( loader );
  }

Referenced by cf2_outline_close(), load_truetype_glyph(), and pfr_glyph_end().

FT_GlyphLoader_CheckPoints()

FT_GlyphLoader_CheckPoints	(	FT_GlyphLoader	loader,
		FT_UInt	n_points,
		FT_UInt	n_contours
	)

Definition at line 201 of file ftgloadr.c.

  {
    FT_Memory    memory  = loader->memory;
    FT_Error     error   = FT_Err_Ok;
    FT_Outline*  base    = &loader->base.outline;
    FT_Outline*  current = &loader->current.outline;
    FT_Bool      adjust  = 0;
 
    FT_UInt      new_max, old_max;
 
 
    /* check points & tags */
    new_max = (FT_UInt)base->n_points + (FT_UInt)current->n_points +
              n_points;
    old_max = loader->max_points;
 
    if ( new_max > old_max )
    {
      new_max = FT_PAD_CEIL( new_max, 8 );
 
      if ( new_max > FT_OUTLINE_POINTS_MAX )
        return FT_THROW( Array_Too_Large );
 
      if ( FT_RENEW_ARRAY( base->points, old_max, new_max ) ||
           FT_RENEW_ARRAY( base->tags,   old_max, new_max ) )
        goto Exit;
 
      if ( loader->use_extra )
      {
        if ( FT_RENEW_ARRAY( loader->base.extra_points,
                             old_max * 2, new_max * 2 ) )
          goto Exit;
 
        FT_ARRAY_MOVE( loader->base.extra_points + new_max,
                       loader->base.extra_points + old_max,
                       old_max );
 
        loader->base.extra_points2 = loader->base.extra_points + new_max;
      }
 
      adjust = 1;
      loader->max_points = new_max;
    }
 
    /* check contours */
    old_max = loader->max_contours;
    new_max = (FT_UInt)base->n_contours + (FT_UInt)current->n_contours +
              n_contours;
    if ( new_max > old_max )
    {
      new_max = FT_PAD_CEIL( new_max, 4 );
 
      if ( new_max > FT_OUTLINE_CONTOURS_MAX )
        return FT_THROW( Array_Too_Large );
 
      if ( FT_RENEW_ARRAY( base->contours, old_max, new_max ) )
        goto Exit;
 
      adjust = 1;
      loader->max_contours = new_max;
    }
 
    if ( adjust )
      FT_GlyphLoader_Adjust_Points( loader );
 
  Exit:
    if ( error )
      FT_GlyphLoader_Reset( loader );
 
    return error;
  }

Referenced by FT_GlyphLoader_CopyPoints().

FT_GlyphLoader_CheckSubGlyphs()

FT_GlyphLoader_CheckSubGlyphs	(	FT_GlyphLoader	loader,
		FT_UInt	n_subs
	)

Definition at line 281 of file ftgloadr.c.

  {
    FT_Memory     memory = loader->memory;
    FT_Error      error  = FT_Err_Ok;
    FT_UInt       new_max, old_max;
 
    FT_GlyphLoad  base    = &loader->base;
    FT_GlyphLoad  current = &loader->current;
 
 
    new_max = base->num_subglyphs + current->num_subglyphs + n_subs;
    old_max = loader->max_subglyphs;
    if ( new_max > old_max )
    {
      new_max = FT_PAD_CEIL( new_max, 2 );
      if ( FT_RENEW_ARRAY( base->subglyphs, old_max, new_max ) )
        goto Exit;
 
      loader->max_subglyphs = new_max;
 
      FT_GlyphLoader_Adjust_Subglyphs( loader );
    }
 
  Exit:
    return error;
  }

Referenced by cf2_interpT2CharString(), and TT_Load_Composite_Glyph().

FT_GlyphLoader_CopyPoints()

FT_GlyphLoader_CopyPoints	(	FT_GlyphLoader	target,
		FT_GlyphLoader	source
	)

Definition at line 365 of file ftgloadr.c.

  {
    FT_Error  error;
    FT_UInt   num_points   = (FT_UInt)source->base.outline.n_points;
    FT_UInt   num_contours = (FT_UInt)source->base.outline.n_contours;
 
 
    error = FT_GlyphLoader_CheckPoints( target, num_points, num_contours );
    if ( !error )
    {
      FT_Outline*  out = &target->base.outline;
      FT_Outline*  in  = &source->base.outline;
 
 
      FT_ARRAY_COPY( out->points, in->points,
                     num_points );
      FT_ARRAY_COPY( out->tags, in->tags,
                     num_points );
      FT_ARRAY_COPY( out->contours, in->contours,
                     num_contours );
 
      /* do we need to copy the extra points? */
      if ( target->use_extra && source->use_extra )
      {
        FT_ARRAY_COPY( target->base.extra_points, source->base.extra_points,
                       num_points );
        FT_ARRAY_COPY( target->base.extra_points2, source->base.extra_points2,
                       num_points );
      }
 
      out->n_points   = (short)num_points;
      out->n_contours = (short)num_contours;
 
      FT_GlyphLoader_Adjust_Points( target );
    }
 
    return error;
  }

FT_GlyphLoader_CreateExtra()

FT_GlyphLoader_CreateExtra

(

FT_GlyphLoader

loader

)

Definition at line 166 of file ftgloadr.c.

  {
    FT_Error   error;
    FT_Memory  memory = loader->memory;
 
 
    if ( !FT_NEW_ARRAY( loader->base.extra_points, 2 * loader->max_points ) )
    {
      loader->use_extra          = 1;
      loader->base.extra_points2 = loader->base.extra_points +
                                   loader->max_points;
 
      FT_GlyphLoader_Adjust_Points( loader );
    }
    return error;
  }

Referenced by tt_slot_init().

FT_GlyphLoader_Done()

FT_GlyphLoader_Done

(

FT_GlyphLoader

loader

)

Definition at line 128 of file ftgloadr.c.

  {
    if ( loader )
    {
      FT_Memory memory = loader->memory;
 
 
      FT_GlyphLoader_Reset( loader );
      FT_FREE( loader );
    }
  }

Referenced by ft_glyphslot_done().

FT_GlyphLoader_New()

FT_GlyphLoader_New	(	FT_Memory	memory,
		FT_GlyphLoader *	aloader
	)

Definition at line 70 of file ftgloadr.c.

  {
    FT_GlyphLoader  loader = NULL;
    FT_Error        error;
 
 
    if ( !FT_NEW( loader ) )
    {
      loader->memory = memory;
      *aloader       = loader;
    }
    return error;
  }

Referenced by ft_glyphslot_init().

FT_GlyphLoader_Prepare()

FT_GlyphLoader_Prepare

(

FT_GlyphLoader

loader

)

Definition at line 312 of file ftgloadr.c.

  {
    FT_GlyphLoad  current = &loader->current;
 
 
    current->outline.n_points   = 0;
    current->outline.n_contours = 0;
    current->num_subglyphs      = 0;
 
    FT_GlyphLoader_Adjust_Points   ( loader );
    FT_GlyphLoader_Adjust_Subglyphs( loader );
  }

Referenced by cf2_interpT2CharString(), and FT_GlyphLoader_Add().

FT_GlyphLoader_Reset()

FT_GlyphLoader_Reset

(

FT_GlyphLoader

loader

)

Definition at line 105 of file ftgloadr.c.

  {
    FT_Memory memory = loader->memory;
 
 
    FT_FREE( loader->base.outline.points );
    FT_FREE( loader->base.outline.tags );
    FT_FREE( loader->base.outline.contours );
    FT_FREE( loader->base.extra_points );
    FT_FREE( loader->base.subglyphs );
 
    loader->base.extra_points2 = NULL;
 
    loader->max_points    = 0;
    loader->max_contours  = 0;
    loader->max_subglyphs = 0;
 
    FT_GlyphLoader_Rewind( loader );
  }

Referenced by FT_GlyphLoader_CheckPoints(), and FT_GlyphLoader_Done().

FT_GlyphLoader_Rewind()

FT_GlyphLoader_Rewind

(

FT_GlyphLoader

loader

)

Definition at line 88 of file ftgloadr.c.

  {
    FT_GlyphLoad  base    = &loader->base;
    FT_GlyphLoad  current = &loader->current;
 
 
    base->outline.n_points   = 0;
    base->outline.n_contours = 0;
    base->num_subglyphs      = 0;
 
    *current = *base;
  }

Referenced by cf2_outline_reset(), cff_builder_init(), FT_GlyphLoader_Reset(), pfr_glyph_init(), pfr_glyph_load(), t1_builder_init(), and tt_loader_init().