path: root/tests/freetype/src/type42/t42parse.c

/***************************************************************************/
/*                                                                         */
/*  t42parse.c                                                             */
/*                                                                         */
/*    Type 42 font parser (body).                                          */
/*                                                                         */
/*  Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 by      */
/*  Roberto Alameda.                                                       */
/*                                                                         */
/*  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 "t42parse.h"
#include "t42error.h"
#include FT_INTERNAL_DEBUG_H
#include FT_INTERNAL_STREAM_H
#include FT_INTERNAL_POSTSCRIPT_AUX_H


  /*************************************************************************/
  /*                                                                       */
  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
  /* messages during execution.                                            */
  /*                                                                       */
#undef  FT_COMPONENT
#define FT_COMPONENT  trace_t42


  static void
  t42_parse_font_matrix( T42_Face    face,
                         T42_Loader  loader );
  static void
  t42_parse_encoding( T42_Face    face,
                      T42_Loader  loader );

  static void
  t42_parse_charstrings( T42_Face    face,
                         T42_Loader  loader );

  static void
  t42_parse_sfnts( T42_Face    face,
                   T42_Loader  loader );


  /* as Type42 fonts have no Private dict,         */
  /* we set the last argument of T1_FIELD_XXX to 0 */
  static const
  T1_FieldRec  t42_keywords[] =
  {

#undef  FT_STRUCTURE
#define FT_STRUCTURE  T1_FontInfo
#undef  T1CODE
#define T1CODE        T1_FIELD_LOCATION_FONT_INFO

    T1_FIELD_STRING( "version",            version,             0 )
    T1_FIELD_STRING( "Notice",             notice,              0 )
    T1_FIELD_STRING( "FullName",           full_name,           0 )
    T1_FIELD_STRING( "FamilyName",         family_name,         0 )
    T1_FIELD_STRING( "Weight",             weight,              0 )
    T1_FIELD_NUM   ( "ItalicAngle",        italic_angle,        0 )
    T1_FIELD_BOOL  ( "isFixedPitch",       is_fixed_pitch,      0 )
    T1_FIELD_NUM   ( "UnderlinePosition",  underline_position,  0 )
    T1_FIELD_NUM   ( "UnderlineThickness", underline_thickness, 0 )

#undef  FT_STRUCTURE
#define FT_STRUCTURE  PS_FontExtraRec
#undef  T1CODE
#define T1CODE        T1_FIELD_LOCATION_FONT_EXTRA

    T1_FIELD_NUM   ( "FSType",             fs_type,             0 )

#undef  FT_STRUCTURE
#define FT_STRUCTURE  T1_FontRec
#undef  T1CODE
#define T1CODE        T1_FIELD_LOCATION_FONT_DICT

    T1_FIELD_KEY  ( "FontName",    font_name,    0 )
    T1_FIELD_NUM  ( "PaintType",   paint_type,   0 )
    T1_FIELD_NUM  ( "FontType",    font_type,    0 )
    T1_FIELD_FIXED( "StrokeWidth", stroke_width, 0 )

#undef  FT_STRUCTURE
#define FT_STRUCTURE  FT_BBox
#undef  T1CODE
#define T1CODE        T1_FIELD_LOCATION_BBOX

    T1_FIELD_BBOX("FontBBox", xMin, 0 )

    T1_FIELD_CALLBACK( "FontMatrix",  t42_parse_font_matrix, 0 )
    T1_FIELD_CALLBACK( "Encoding",    t42_parse_encoding,    0 )
    T1_FIELD_CALLBACK( "CharStrings", t42_parse_charstrings, 0 )
    T1_FIELD_CALLBACK( "sfnts",       t42_parse_sfnts,       0 )

    { 0, T1_FIELD_LOCATION_CID_INFO, T1_FIELD_TYPE_NONE, 0, 0, 0, 0, 0, 0 }
  };


#define T1_Add_Table( p, i, o, l )  (p)->funcs.add( (p), i, o, l )
#define T1_Done_Table( p )          \
          do                        \
          {                         \
            if ( (p)->funcs.done )  \
              (p)->funcs.done( p ); \
          } while ( 0 )
#define T1_Release_Table( p )          \
          do                           \
          {                            \
            if ( (p)->funcs.release )  \
              (p)->funcs.release( p ); \
          } while ( 0 )

#define T1_Skip_Spaces( p )    (p)->root.funcs.skip_spaces( &(p)->root )
#define T1_Skip_PS_Token( p )  (p)->root.funcs.skip_PS_token( &(p)->root )

#define T1_ToInt( p )                          \
          (p)->root.funcs.to_int( &(p)->root )
#define T1_ToBytes( p, b, m, n, d )                          \
          (p)->root.funcs.to_bytes( &(p)->root, b, m, n, d )

#define T1_ToFixedArray( p, m, f, t )                           \
          (p)->root.funcs.to_fixed_array( &(p)->root, m, f, t )
#define T1_ToToken( p, t )                          \
          (p)->root.funcs.to_token( &(p)->root, t )

#define T1_Load_Field( p, f, o, m, pf )                         \
          (p)->root.funcs.load_field( &(p)->root, f, o, m, pf )
#define T1_Load_Field_Table( p, f, o, m, pf )                         \
          (p)->root.funcs.load_field_table( &(p)->root, f, o, m, pf )


  /********************* Parsing Functions ******************/

  FT_LOCAL_DEF( FT_Error