psft.c File Reference

#include "psft.h"
#include "psfont.h"
#include "pserror.h"
#include "psobjs.h"
#include "cffdecode.h"

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Macros
#define	CF2_MAX_SIZE   cf2_intToFixed( 2000 ) /* max ppem */

Functions
static FT_Error	cf2_checkTransform (const CF2_Matrix *transform, CF2_Int unitsPerEm)
static void	cf2_setGlyphWidth (CF2_Outline outline, CF2_Fixed width)
static void	cf2_free_instance (void *ptr)
static void	cf2_builder_moveTo (CF2_OutlineCallbacks callbacks, const CF2_CallbackParams params)
static void	cf2_builder_lineTo (CF2_OutlineCallbacks callbacks, const CF2_CallbackParams params)
static void	cf2_builder_cubeTo (CF2_OutlineCallbacks callbacks, const CF2_CallbackParams params)
static void	cf2_outline_init (CF2_Outline outline, FT_Memory memory, FT_Error *error)
static void	cf2_getScaleAndHintFlag (PS_Decoder *decoder, CF2_Fixed *x_scale, CF2_Fixed *y_scale, FT_Bool *hinted, FT_Bool *scaled)
static FT_UShort	cf2_getUnitsPerEm (PS_Decoder *decoder)
	cf2_decoder_parse_charstrings (PS_Decoder *decoder, FT_Byte *charstring_base, FT_ULong charstring_len)
	cf2_getSubfont (PS_Decoder *decoder)
	cf2_getVStore (PS_Decoder *decoder)
	cf2_getMaxstack (PS_Decoder *decoder)
	cf2_getPpemY (PS_Decoder *decoder)
	cf2_getStdVW (PS_Decoder *decoder)
	cf2_getStdHW (PS_Decoder *decoder)
	cf2_getBlueMetrics (PS_Decoder *decoder, CF2_Fixed *blueScale, CF2_Fixed *blueShift, CF2_Fixed *blueFuzz)
	cf2_getBlueValues (PS_Decoder *decoder, size_t *count, FT_Pos **data)
	cf2_getOtherBlues (PS_Decoder *decoder, size_t *count, FT_Pos **data)
	cf2_getFamilyBlues (PS_Decoder *decoder, size_t *count, FT_Pos **data)
	cf2_getFamilyOtherBlues (PS_Decoder *decoder, size_t *count, FT_Pos **data)
	cf2_getLanguageGroup (PS_Decoder *decoder)
	cf2_initGlobalRegionBuffer (PS_Decoder *decoder, CF2_Int subrNum, CF2_Buffer buf)
	cf2_getSeacComponent (PS_Decoder *decoder, CF2_Int code, CF2_Buffer buf)
	cf2_freeSeacComponent (PS_Decoder *decoder, CF2_Buffer buf)
	cf2_getT1SeacComponent (PS_Decoder *decoder, FT_UInt glyph_index, CF2_Buffer buf)
	cf2_freeT1SeacComponent (PS_Decoder *decoder, CF2_Buffer buf)
	cf2_initLocalRegionBuffer (PS_Decoder *decoder, CF2_Int subrNum, CF2_Buffer buf)
	cf2_getDefaultWidthX (PS_Decoder *decoder)
	cf2_getNominalWidthX (PS_Decoder *decoder)
	cf2_outline_reset (CF2_Outline outline)
	cf2_outline_close (CF2_Outline outline)

Macro Definition Documentation

CF2_MAX_SIZE

#define CF2_MAX_SIZE   cf2_intToFixed( 2000 ) /* max ppem */

Definition at line 55 of file psft.c.

Function Documentation

cf2_builder_cubeTo()

static void cf2_builder_cubeTo ( CF2_OutlineCallbacks  callbacks, const CF2_CallbackParams  params  )

static

Definition at line 197 of file psft.c.

  {
    FT_Error  error;
 
    /* downcast the object pointer */
    CF2_Outline  outline = (CF2_Outline)callbacks;
    PS_Builder*  builder;
 
 
    FT_ASSERT( outline && outline->decoder );
    FT_ASSERT( params->op == CF2_PathOpCubeTo );
 
    builder = &outline->decoder->builder;
 
    if ( !builder->path_begun )
    {
      /* record the move before the line; also check points and set */
      /* `path_begun'                                               */
      error = ps_builder_start_point( builder,
                                      params->pt0.x,
                                      params->pt0.y );
      if ( error )
      {
        if ( !*callbacks->error )
          *callbacks->error =  error;
        return;
      }
    }
 
    /* prepare room for 3 points: 2 off-curve, 1 on-curve */
    error = ps_builder_check_points( builder, 3 );
    if ( error )
    {
      if ( !*callbacks->error )
        *callbacks->error =  error;
      return;
    }
 
    ps_builder_add_point( builder,
                          params->pt1.x,
                          params->pt1.y, 0 );
    ps_builder_add_point( builder,
                          params->pt2.x,
                          params->pt2.y, 0 );
    ps_builder_add_point( builder,
                          params->pt3.x,
                          params->pt3.y, 1 );
  }

Referenced by cf2_outline_init().

cf2_builder_lineTo()

static void cf2_builder_lineTo ( CF2_OutlineCallbacks  callbacks, const CF2_CallbackParams  params  )

static

Definition at line 153 of file psft.c.

  {
    FT_Error  error;
 
    /* downcast the object pointer */
    CF2_Outline  outline = (CF2_Outline)callbacks;
    PS_Builder*  builder;
 
 
    FT_ASSERT( outline && outline->decoder );
    FT_ASSERT( params->op == CF2_PathOpLineTo );
 
    builder = &outline->decoder->builder;
 
    if ( !builder->path_begun )
    {
      /* record the move before the line; also check points and set */
      /* `path_begun'                                               */
      error = ps_builder_start_point( builder,
                                      params->pt0.x,
                                      params->pt0.y );
      if ( error )
      {
        if ( !*callbacks->error )
          *callbacks->error =  error;
        return;
      }
    }
 
    /* `ps_builder_add_point1' includes a check_points call for one point */
    error = ps_builder_add_point1( builder,
                                   params->pt1.x,
                                   params->pt1.y );
    if ( error )
    {
      if ( !*callbacks->error )
        *callbacks->error =  error;
      return;
    }
  }

Referenced by cf2_outline_init().

cf2_builder_moveTo()

static void cf2_builder_moveTo ( CF2_OutlineCallbacks  callbacks, const CF2_CallbackParams  params  )

static

Definition at line 131 of file psft.c.

  {
    /* downcast the object pointer */
    CF2_Outline  outline = (CF2_Outline)callbacks;
    PS_Builder*  builder;
 
    (void)params;        /* only used in debug mode */
 
 
    FT_ASSERT( outline && outline->decoder );
    FT_ASSERT( params->op == CF2_PathOpMoveTo );
 
    builder = &outline->decoder->builder;
 
    /* note: two successive moves simply close the contour twice */
    ps_builder_close_contour( builder );
    builder->path_begun = 0;
  }

Referenced by cf2_outline_init().

cf2_checkTransform()

static FT_Error cf2_checkTransform ( const CF2_Matrix *  transform, CF2_Int  unitsPerEm  )

static

Definition at line 65 of file psft.c.

  {
    CF2_Fixed  maxScale;
 
 
    FT_ASSERT( unitsPerEm > 0 );
 
    if ( transform->a <= 0 || transform->d <= 0 )
      return FT_THROW( Invalid_Size_Handle );
 
    FT_ASSERT( transform->b == 0 && transform->c == 0 );
    FT_ASSERT( transform->tx == 0 && transform->ty == 0 );
 
    if ( unitsPerEm > 0x7FFF )
      return FT_THROW( Glyph_Too_Big );
 
    maxScale = FT_DivFix( CF2_MAX_SIZE, cf2_intToFixed( unitsPerEm ) );
 
    if ( transform->a > maxScale || transform->d > maxScale )
      return FT_THROW( Glyph_Too_Big );
 
    return FT_Err_Ok;
  }

Referenced by cf2_decoder_parse_charstrings().

cf2_decoder_parse_charstrings()

cf2_decoder_parse_charstrings	(	PS_Decoder *	decoder,
		FT_Byte *	charstring_base,
		FT_ULong	charstring_len
	)

Definition at line 308 of file psft.c.

  {
    FT_Memory  memory;
    FT_Error   error = FT_Err_Ok;
    CF2_Font   font;
 
    FT_Bool    is_t1 = decoder->builder.is_t1;
 
 
    FT_ASSERT( decoder &&
               ( is_t1 || decoder->cff ) );
 
    if ( is_t1 && !decoder->current_subfont )
    {
      FT_ERROR(( "cf2_decoder_parse_charstrings (Type 1): "
                 "SubFont missing. Use `t1_make_subfont' first\n" ));
      return FT_THROW( Invalid_Table );
    }
 
    memory = decoder->builder.memory;
 
    /* CF2 data is saved here across glyphs */
    font = (CF2_Font)decoder->cf2_instance->data;
 
    /* on first glyph, allocate instance structure */
    if ( !decoder->cf2_instance->data )
    {
      decoder->cf2_instance->finalizer =
        (FT_Generic_Finalizer)cf2_free_instance;
 
      if ( FT_ALLOC( decoder->cf2_instance->data,
                     sizeof ( CF2_FontRec ) ) )
        return FT_THROW( Out_Of_Memory );
 
      font = (CF2_Font)decoder->cf2_instance->data;
 
      font->memory = memory;
 
      if ( !is_t1 )
        font->cffload = (FT_Service_CFFLoad)decoder->cff->cffload;
 
      /* initialize a client outline, to be shared by each glyph rendered */
      cf2_outline_init( &font->outline, font->memory, &font->error );
    }
 
    /* save decoder; it is a stack variable and will be different on each */
    /* call                                                               */
    font->decoder         = decoder;
    font->outline.decoder = decoder;
 
    {
      /* build parameters for Adobe engine */
 
      PS_Builder*  builder = &decoder->builder;
      PS_Driver    driver  = (PS_Driver)FT_FACE_DRIVER( builder->face );
 
      FT_Bool  no_stem_darkening_driver =
                 driver->no_stem_darkening;
      FT_Char  no_stem_darkening_font =
                 builder->face->internal->no_stem_darkening;
 
      /* local error */
      FT_Error       error2 = FT_Err_Ok;
      CF2_BufferRec  buf;
      CF2_Matrix     transform;
      CF2_F16Dot16   glyphWidth;
 
      FT_Bool  hinted;
      FT_Bool  scaled;
 
 
      /* FreeType has already looked up the GID; convert to         */
      /* `RegionBuffer', assuming that the input has been validated */
      FT_ASSERT( charstring_base + charstring_len >= charstring_base );
 
      FT_ZERO( &buf );
      buf.start =
      buf.ptr   = charstring_base;
      buf.end   = charstring_base + charstring_len;
 
      FT_ZERO( &transform );
 
      cf2_getScaleAndHintFlag( decoder,
                               &transform.a,
                               &transform.d,
                               &hinted,
                               &scaled );
 
      if ( is_t1 )
        font->isCFF2 = FALSE;
      else
      {
        /* copy isCFF2 boolean from TT_Face to CF2_Font */
        font->isCFF2 = ((TT_Face)builder->face)->is_cff2;
      }
      font->isT1 = is_t1;
 
      font->renderingFlags = 0;
      if ( hinted )
        font->renderingFlags |= CF2_FlagsHinted;
      if ( scaled && ( !no_stem_darkening_font        ||
                       ( no_stem_darkening_font < 0 &&
                         !no_stem_darkening_driver  ) ) )
        font->renderingFlags |= CF2_FlagsDarkened;
 
      font->darkenParams[0] = driver->darken_params[0];
      font->darkenParams[1] = driver->darken_params[1];
      font->darkenParams[2] = driver->darken_params[2];
      font->darkenParams[3] = driver->darken_params[3];
      font->darkenParams[4] = driver->darken_params[4];
      font->darkenParams[5] = driver->darken_params[5];
      font->darkenParams[6] = driver->darken_params[6];
      font->darkenParams[7] = driver->darken_params[7];
 
      /* now get an outline for this glyph;      */
      /* also get units per em to validate scale */
      font->unitsPerEm = (CF2_Int)cf2_getUnitsPerEm( decoder );
 
      if ( scaled )
      {
        error2 = cf2_checkTransform( &transform, font->unitsPerEm );
        if ( error2 )
          return error2;
      }
 
      error2 = cf2_getGlyphOutline( font, &buf, &transform, &glyphWidth );
      if ( error2 )
        return FT_ERR( Invalid_File_Format );
 
      cf2_setGlyphWidth( &font->outline, glyphWidth );
 
      return FT_Err_Ok;
    }
  }

cf2_free_instance()

static void cf2_free_instance ( void *  ptr )

static

Definition at line 107 of file psft.c.

  {
    CF2_Font  font = (CF2_Font)ptr;
 
 
    if ( font )
    {
      FT_Memory  memory = font->memory;
 
 
      FT_FREE( font->blend.lastNDV );
      FT_FREE( font->blend.BV );
    }
  }

Referenced by cf2_decoder_parse_charstrings().

cf2_freeSeacComponent()

cf2_freeSeacComponent	(	PS_Decoder *	decoder,
		CF2_Buffer	buf
	)

Definition at line 708 of file psft.c.

  {
    FT_ASSERT( decoder );
    FT_ASSERT( !decoder->builder.is_t1 );
 
    decoder->free_glyph_callback( (TT_Face)decoder->builder.face,
                                  (FT_Byte**)&buf->start,
                                  (FT_ULong)( buf->end - buf->start ) );
  }

Referenced by cf2_interpT2CharString().

cf2_freeT1SeacComponent()

cf2_freeT1SeacComponent	(	PS_Decoder *	decoder,
		CF2_Buffer	buf
	)

Definition at line 767 of file psft.c.

  {
    T1_Face  face;
    FT_Data  data;
 
 
    FT_ASSERT( decoder );
 
#ifdef FT_CONFIG_OPTION_INCREMENTAL
    face = (T1_Face)decoder->builder.face;
 
    data.pointer = buf->start;
    data.length  = (FT_Int)( buf->end - buf->start );
 
    if ( face->root.internal->incremental_interface )
      face->root.internal->incremental_interface->funcs->free_glyph_data(
        face->root.internal->incremental_interface->object,
        &data );
#endif /* FT_CONFIG_OPTION_INCREMENTAL */
  }

Referenced by cf2_interpT2CharString().

cf2_getBlueMetrics()

cf2_getBlueMetrics	(	PS_Decoder *	decoder,
		CF2_Fixed *	blueScale,
		CF2_Fixed *	blueShift,
		CF2_Fixed *	blueFuzz
	)

Definition at line 549 of file psft.c.

  {
    FT_ASSERT( decoder && decoder->current_subfont );
 
    *blueScale = FT_DivFix(
                   decoder->current_subfont->private_dict.blue_scale,
                   cf2_intToFixed( 1000 ) );
    *blueShift = cf2_intToFixed(
                   decoder->current_subfont->private_dict.blue_shift );
    *blueFuzz  = cf2_intToFixed(
                   decoder->current_subfont->private_dict.blue_fuzz );
  }

Referenced by cf2_blues_init().

cf2_getBlueValues()

cf2_getBlueValues	(	PS_Decoder *	decoder,
		size_t *	count,
		FT_Pos **	data
	)

Definition at line 569 of file psft.c.

  {
    FT_ASSERT( decoder && decoder->current_subfont );
 
    *count = decoder->current_subfont->private_dict.num_blue_values;
    *data  = (FT_Pos*)
               &decoder->current_subfont->private_dict.blue_values;
  }

Referenced by cf2_blues_init().

cf2_getDefaultWidthX()

cf2_getDefaultWidthX

(

PS_Decoder *

decoder

)

Definition at line 843 of file psft.c.

  {
    FT_ASSERT( decoder && decoder->current_subfont );
 
    return cf2_intToFixed(
             decoder->current_subfont->private_dict.default_width );
  }

Referenced by cf2_interpT2CharString().

cf2_getFamilyBlues()

cf2_getFamilyBlues	(	PS_Decoder *	decoder,
		size_t *	count,
		FT_Pos **	data
	)

Definition at line 595 of file psft.c.

  {
    FT_ASSERT( decoder && decoder->current_subfont );
 
    *count = decoder->current_subfont->private_dict.num_family_blues;
    *data  = (FT_Pos*)
               &decoder->current_subfont->private_dict.family_blues;
  }

Referenced by cf2_blues_init().

cf2_getFamilyOtherBlues()

cf2_getFamilyOtherBlues	(	PS_Decoder *	decoder,
		size_t *	count,
		FT_Pos **	data
	)

Definition at line 608 of file psft.c.

  {
    FT_ASSERT( decoder && decoder->current_subfont );
 
    *count = decoder->current_subfont->private_dict.num_family_other_blues;
    *data  = (FT_Pos*)
               &decoder->current_subfont->private_dict.family_other_blues;
  }

Referenced by cf2_blues_init().

cf2_getLanguageGroup()

cf2_getLanguageGroup

(

PS_Decoder *

decoder

)

Definition at line 621 of file psft.c.

  {
    FT_ASSERT( decoder && decoder->current_subfont );
 
    return decoder->current_subfont->private_dict.language_group;
  }

Referenced by cf2_blues_init().

cf2_getMaxstack()

cf2_getMaxstack

(

PS_Decoder *

decoder

)

Definition at line 468 of file psft.c.

  {
    FT_ASSERT( decoder && decoder->cff );
 
    return decoder->cff->top_font.font_dict.maxstack;
  }

Referenced by cf2_interpT2CharString().

cf2_getNominalWidthX()

cf2_getNominalWidthX

(

PS_Decoder *

decoder

)

Definition at line 853 of file psft.c.

  {
    FT_ASSERT( decoder && decoder->current_subfont );
 
    return cf2_intToFixed(
             decoder->current_subfont->private_dict.nominal_width );
  }

Referenced by cf2_doStems(), and cf2_interpT2CharString().

cf2_getOtherBlues()

cf2_getOtherBlues	(	PS_Decoder *	decoder,
		size_t *	count,
		FT_Pos **	data
	)

Definition at line 582 of file psft.c.

  {
    FT_ASSERT( decoder && decoder->current_subfont );
 
    *count = decoder->current_subfont->private_dict.num_other_blues;
    *data  = (FT_Pos*)
               &decoder->current_subfont->private_dict.other_blues;
  }

Referenced by cf2_blues_init().

cf2_getPpemY()

cf2_getPpemY

(

PS_Decoder *

decoder

)

Definition at line 504 of file psft.c.

  {
    FT_ASSERT( decoder                     &&
               decoder->builder.face       &&
               decoder->builder.face->size );
 
    /*
     * Note that `y_ppem' can be zero if there wasn't a call to
     * `FT_Set_Char_Size' or something similar.  However, this isn't a
     * problem since we come to this place in the code only if
     * FT_LOAD_NO_SCALE is set (the other case gets caught by
     * `cf2_checkTransform').  The ppem value is needed to compute the stem
     * darkening, which is disabled for getting the unscaled outline.
     *
     */
    return cf2_intToFixed(
             decoder->builder.face->size->metrics.y_ppem );
  }

Referenced by cf2_font_setup().

cf2_getScaleAndHintFlag()

static void cf2_getScaleAndHintFlag ( PS_Decoder *  decoder, CF2_Fixed *  x_scale, CF2_Fixed *  y_scale, FT_Bool *  hinted, FT_Bool *  scaled  )

static

Definition at line 266 of file psft.c.

  {
    FT_ASSERT( decoder && decoder->builder.glyph );
 
    /* note: FreeType scale includes a factor of 64 */
    *hinted = decoder->builder.glyph->hint;
    *scaled = decoder->builder.glyph->scaled;
 
    if ( *hinted )
    {
      *x_scale = ADD_INT32( decoder->builder.glyph->x_scale, 32 ) / 64;
      *y_scale = ADD_INT32( decoder->builder.glyph->y_scale, 32 ) / 64;
    }
    else
    {
      /* for unhinted outlines, `cff_slot_load' does the scaling, */
      /* thus render at `unity' scale                             */
 
      *x_scale = 0x0400;   /* 1/64 as 16.16 */
      *y_scale = 0x0400;
    }
  }

Referenced by cf2_decoder_parse_charstrings().

cf2_getSeacComponent()

cf2_getSeacComponent	(	PS_Decoder *	decoder,
		CF2_Int	code,
		CF2_Buffer	buf
	)

Definition at line 660 of file psft.c.

  {
    CF2_Int   gid;
    FT_Byte*  charstring;
    FT_ULong  len;
    FT_Error  error;
 
 
    FT_ASSERT( decoder );
    FT_ASSERT( !decoder->builder.is_t1 );
 
    FT_ZERO( buf );
 
#ifdef FT_CONFIG_OPTION_INCREMENTAL
    /* Incremental fonts don't necessarily have valid charsets.        */
    /* They use the character code, not the glyph index, in this case. */
    if ( decoder->builder.face->internal->incremental_interface )
      gid = code;
    else
#endif /* FT_CONFIG_OPTION_INCREMENTAL */
    {
      gid = cff_lookup_glyph_by_stdcharcode( decoder->cff, code );
      if ( gid < 0 )
        return FT_THROW( Invalid_Glyph_Format );
    }
 
    error = decoder->get_glyph_callback( (TT_Face)decoder->builder.face,
                                         (CF2_UInt)gid,
                                         &charstring,
                                         &len );
    /* TODO: for now, just pass the FreeType error through */
    if ( error )
      return error;
 
    /* assume input has been validated */
    FT_ASSERT( charstring + len >= charstring );
 
    buf->start = charstring;
    buf->end   = charstring + len;
    buf->ptr   = buf->start;
 
    return FT_Err_Ok;
  }

Referenced by cf2_interpT2CharString().

cf2_getStdHW()

cf2_getStdHW

(

PS_Decoder *

decoder

)

Definition at line 538 of file psft.c.

  {
    FT_ASSERT( decoder && decoder->current_subfont );
 
    return cf2_intToFixed(
             decoder->current_subfont->private_dict.standard_width );
  }

Referenced by cf2_font_setup().

cf2_getStdVW()

cf2_getStdVW

(

PS_Decoder *

decoder

)

Definition at line 528 of file psft.c.

  {
    FT_ASSERT( decoder && decoder->current_subfont );
 
    return cf2_intToFixed(
             decoder->current_subfont->private_dict.standard_height );
  }

Referenced by cf2_font_setup().

cf2_getSubfont()

cf2_getSubfont

(

PS_Decoder *

decoder

)

Definition at line 448 of file psft.c.

  {
    FT_ASSERT( decoder && decoder->current_subfont );
 
    return decoder->current_subfont;
  }

Referenced by cf2_font_setup().

cf2_getT1SeacComponent()

cf2_getT1SeacComponent	(	PS_Decoder *	decoder,
		FT_UInt	glyph_index,
		CF2_Buffer	buf
	)

Definition at line 721 of file psft.c.

  {
    FT_Data   glyph_data;
    FT_Error  error = FT_Err_Ok;
    T1_Face   face  = (T1_Face)decoder->builder.face;
    T1_Font   type1 = &face->type1;
 
#ifdef FT_CONFIG_OPTION_INCREMENTAL
    FT_Incremental_InterfaceRec  *inc =
      face->root.internal->incremental_interface;
 
 
    /* For incremental fonts get the character data using the */
    /* callback function.                                     */
    if ( inc )
      error = inc->funcs->get_glyph_data( inc->object,
                                          glyph_index, &glyph_data );
    else
#endif
    /* For ordinary fonts get the character data stored in the face record. */
    {
      glyph_data.pointer = type1->charstrings[glyph_index];
      glyph_data.length  = (FT_Int)type1->charstrings_len[glyph_index];
    }
 
    if ( !error )
    {
      FT_Byte*  charstring_base = (FT_Byte*)glyph_data.pointer;
      FT_ULong  charstring_len  = (FT_ULong)glyph_data.length;
 
 
      FT_ASSERT( charstring_base + charstring_len >= charstring_base );
 
      FT_ZERO( buf );
      buf->start =
      buf->ptr   = charstring_base;
      buf->end   = charstring_base + charstring_len;
    }
 
    return error;
  }

Referenced by cf2_interpT2CharString().

cf2_getUnitsPerEm()

static FT_UShort cf2_getUnitsPerEm ( PS_Decoder *  decoder )

static

Definition at line 297 of file psft.c.

  {
    FT_ASSERT( decoder && decoder->builder.face );
    FT_ASSERT( decoder->builder.face->units_per_EM );
 
    return decoder->builder.face->units_per_EM;
  }

Referenced by cf2_decoder_parse_charstrings().

cf2_getVStore()

cf2_getVStore

(

PS_Decoder *

decoder

)

Definition at line 458 of file psft.c.

  {
    FT_ASSERT( decoder && decoder->cff );
 
    return &decoder->cff->vstore;
  }

Referenced by cf2_font_setup().

cf2_initGlobalRegionBuffer()

cf2_initGlobalRegionBuffer	(	PS_Decoder *	decoder,
		CF2_Int	subrNum,
		CF2_Buffer	buf
	)

Definition at line 632 of file psft.c.

  {
    CF2_UInt  idx;
 
 
    FT_ASSERT( decoder );
 
    FT_ZERO( buf );
 
    idx = (CF2_UInt)( subrNum + decoder->globals_bias );
    if ( idx >= decoder->num_globals )
      return TRUE;     /* error */
 
    FT_ASSERT( decoder->globals );
 
    buf->start =
    buf->ptr   = decoder->globals[idx];
    buf->end   = decoder->globals[idx + 1];
 
    return FALSE;      /* success */
  }

Referenced by cf2_interpT2CharString().

cf2_initLocalRegionBuffer()

cf2_initLocalRegionBuffer	(	PS_Decoder *	decoder,
		CF2_Int	subrNum,
		CF2_Buffer	buf
	)

Definition at line 791 of file psft.c.

  {
    CF2_UInt  idx;
 
 
    FT_ASSERT( decoder );
 
    FT_ZERO( buf );
 
    idx = (CF2_UInt)( subrNum + decoder->locals_bias );
    if ( idx >= decoder->num_locals )
      return TRUE;     /* error */
 
    FT_ASSERT( decoder->locals );
 
    buf->start = decoder->locals[idx];
 
    if ( decoder->builder.is_t1 )
    {
      /* The Type 1 driver stores subroutines without the seed bytes. */
      /* The CID driver stores subroutines with seed bytes.  This     */
      /* case is taken care of when decoder->subrs_len == 0.          */
      if ( decoder->locals_len )
        buf->end = buf->start + decoder->locals_len[idx];
      else
      {
        /* We are using subroutines from a CID font.  We must adjust */
        /* for the seed bytes.                                       */
        buf->start += ( decoder->lenIV >= 0 ? decoder->lenIV : 0 );
        buf->end    = decoder->locals[idx + 1];
      }
 
      if ( !buf->start )
      {
        FT_ERROR(( "cf2_initLocalRegionBuffer (Type 1 mode):"
                   " invoking empty subrs\n" ));
      }
    }
    else
    {
      buf->end = decoder->locals[idx + 1];
    }
 
    buf->ptr = buf->start;
 
    return FALSE;      /* success */
  }

Referenced by cf2_interpT2CharString().

cf2_outline_close()

cf2_outline_close

(

CF2_Outline

outline

)

Definition at line 877 of file psft.c.

  {
    PS_Decoder*  decoder = outline->decoder;
 
 
    FT_ASSERT( decoder );
 
    ps_builder_close_contour( &decoder->builder );
 
    FT_GlyphLoader_Add( decoder->builder.loader );
  }

Referenced by cf2_getGlyphOutline().

cf2_outline_init()

static void cf2_outline_init ( CF2_Outline  outline, FT_Memory  memory, FT_Error *  error  )

static

Definition at line 249 of file psft.c.

  {
    FT_ZERO( outline );
 
    outline->root.memory = memory;
    outline->root.error  = error;
 
    outline->root.moveTo = cf2_builder_moveTo;
    outline->root.lineTo = cf2_builder_lineTo;
    outline->root.cubeTo = cf2_builder_cubeTo;
  }

Referenced by cf2_decoder_parse_charstrings().

cf2_outline_reset()

cf2_outline_reset

(

CF2_Outline

outline

)

Definition at line 863 of file psft.c.

  {
    PS_Decoder*  decoder = outline->decoder;
 
 
    FT_ASSERT( decoder );
 
    outline->root.windingMomentum = 0;
 
    FT_GlyphLoader_Rewind( decoder->builder.loader );
  }

Referenced by cf2_getGlyphOutline().

cf2_setGlyphWidth()

static void cf2_setGlyphWidth ( CF2_Outline  outline, CF2_Fixed  width  )

static

Definition at line 92 of file psft.c.

  {
    PS_Decoder*  decoder = outline->decoder;
 
 
    FT_ASSERT( decoder );
 
    if ( !decoder->builder.is_t1 )
      *decoder->glyph_width = cf2_fixedToInt( width );
  }

Referenced by cf2_decoder_parse_charstrings().