#include <freetype/internal/ftdebug.h>
#include <freetype/internal/ftgloadr.h>
#include <freetype/internal/ftmemory.h>
#include <freetype/internal/ftobjs.h>

Include dependency graph for ftgloadr.c:

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Go to the source code of this file.

Macros
#define	FT_COMPONENT gloader

Functions
	FT_GlyphLoader_New (FT_Memory memory, FT_GlyphLoader *aloader)

	FT_GlyphLoader_Rewind (FT_GlyphLoader loader)

	FT_GlyphLoader_Reset (FT_GlyphLoader loader)

	FT_GlyphLoader_Done (FT_GlyphLoader loader)

static void	FT_GlyphLoader_Adjust_Points (FT_GlyphLoader loader)

	FT_GlyphLoader_CreateExtra (FT_GlyphLoader loader)

static void	FT_GlyphLoader_Adjust_Subglyphs (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)

Macro Definition Documentation

◆ FT_COMPONENT

#define FT_COMPONENT gloader

Definition at line 25 of file ftgloadr.c.

Function Documentation

◆ FT_GlyphLoader_Add()

FT_GlyphLoader_Add ( FT_GlyphLoader loader )

Definition at line 340 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_Adjust_Points()

static void FT_GlyphLoader_Adjust_Points ( FT_GlyphLoader loader )

static

Definition at line 143 of file ftgloadr.c.

  {
    FT_Outline*  base    = &loader->base.outline;
    FT_Outline*  current = &loader->current.outline;
 
 
    current->points   = FT_OFFSET( base->points,   base->n_points );
    current->tags     = FT_OFFSET( base->tags,     base->n_points );
    current->contours = FT_OFFSET( base->contours, base->n_contours );
 
    /* handle extra points table - if any */
    if ( loader->use_extra )
    {
      loader->current.extra_points  = loader->base.extra_points +
                                      base->n_points;
 
      loader->current.extra_points2 = loader->base.extra_points2 +
                                      base->n_points;
    }
  }

Referenced by FT_GlyphLoader_CheckPoints(), FT_GlyphLoader_CreateExtra(), and FT_GlyphLoader_Prepare().

◆ FT_GlyphLoader_Adjust_Subglyphs()

static void FT_GlyphLoader_Adjust_Subglyphs ( FT_GlyphLoader loader )

static

Definition at line 190 of file ftgloadr.c.

  {
    FT_GlyphLoad  base    = &loader->base;
    FT_GlyphLoad  current = &loader->current;
 
 
    current->subglyphs = FT_OFFSET( base->subglyphs, base->num_subglyphs );
  }

Referenced by FT_GlyphLoader_CheckSubGlyphs(), and FT_GlyphLoader_Prepare().

◆ FT_GlyphLoader_CheckPoints()

FT_GlyphLoader_CheckPoints	(	FT_GlyphLoader	loader,
		FT_UInt	n_points,
		FT_UInt	n_contours
	)

Definition at line 205 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;
 
 
    error = FT_GlyphLoader_CreateExtra( loader );
    if ( error )
      return error;
 
    /* 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;
    }
 
    error = FT_GlyphLoader_CreateExtra( loader );
    if ( error )
      return error;
 
    /* 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;
  }

◆ FT_GlyphLoader_CheckSubGlyphs()

FT_GlyphLoader_CheckSubGlyphs	(	FT_GlyphLoader	loader,
		FT_UInt	n_subs
	)

Definition at line 293 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_CreateExtra()

FT_GlyphLoader_CreateExtra ( FT_GlyphLoader loader )

Definition at line 166 of file ftgloadr.c.

  {
    FT_Error   error;
    FT_Memory  memory = loader->memory;
 
 
    if ( loader->max_points == 0           ||
         loader->base.extra_points != NULL )
      return FT_Err_Ok;
 
    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 FT_GlyphLoader_CheckPoints(), and 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 69 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 324 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 87 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->outline.flags      = 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().

Macros

Functions