src/psaux/psobjs.h

   1 /****************************************************************************
   2  *
   3  * psobjs.h
   4  *
   5  *   Auxiliary functions for PostScript fonts (specification).
   6  *
   7  * Copyright (C) 1996-2023 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 PSOBJS_H_
  20 #define PSOBJS_H_
  21
  22
  23 #include <freetype/internal/psaux.h>
  24 #include <freetype/internal/cffotypes.h>
  25
  26
  27 FT_BEGIN_HEADER
  28
  29
  30   /*************************************************************************/
  31   /*************************************************************************/
  32   /*****                                                               *****/
  33   /*****                             T1_TABLE                          *****/
  34   /*****                                                               *****/
  35   /*************************************************************************/
  36   /*************************************************************************/
  37
  38
  39   FT_CALLBACK_TABLE
  40   const PS_Table_FuncsRec    ps_table_funcs;
  41
  42   FT_CALLBACK_TABLE
  43   const PS_Parser_FuncsRec   ps_parser_funcs;
  44
  45   FT_CALLBACK_TABLE
  46   const T1_Builder_FuncsRec  t1_builder_funcs;
  47
  48
  49   FT_LOCAL( FT_Error )
  50   ps_table_new( PS_Table   table,
  51                 FT_Int     count,
  52                 FT_Memory  memory );
  53
  54   FT_LOCAL( FT_Error )
  55   ps_table_add( PS_Table     table,
  56                 FT_Int       idx,
  57                 const void*  object,
  58                 FT_UInt      length );
  59
  60   FT_LOCAL( void )
  61   ps_table_done( PS_Table  table );
  62
  63
  64   FT_LOCAL( void )
  65   ps_table_release( PS_Table  table );
  66
  67
  68   /*************************************************************************/
  69   /*************************************************************************/
  70   /*****                                                               *****/
  71   /*****                            T1 PARSER                          *****/
  72   /*****                                                               *****/
  73   /*************************************************************************/
  74   /*************************************************************************/
  75
  76
  77   FT_LOCAL( void )
  78   ps_parser_skip_spaces( PS_Parser  parser );
  79
  80   FT_LOCAL( void )
  81   ps_parser_skip_PS_token( PS_Parser  parser );
  82
  83   FT_LOCAL( void )
  84   ps_parser_to_token( PS_Parser  parser,
  85                       T1_Token   token );
  86
  87   FT_LOCAL( void )
  88   ps_parser_to_token_array( PS_Parser  parser,
  89                             T1_Token   tokens,
  90                             FT_UInt    max_tokens,
  91                             FT_Int*    pnum_tokens );
  92
  93   FT_LOCAL( FT_Error )
  94   ps_parser_load_field( PS_Parser       parser,
  95                         const T1_Field  field,
  96                         void**          objects,
  97                         FT_UInt         max_objects,
  98                         FT_ULong*       pflags );
  99
 100   FT_LOCAL( FT_Error )
 101   ps_parser_load_field_table( PS_Parser       parser,
 102                               const T1_Field  field,
 103                               void**          objects,
 104                               FT_UInt         max_objects,
 105                               FT_ULong*       pflags );
 106
 107   FT_LOCAL( FT_Long )
 108   ps_parser_to_int( PS_Parser  parser );
 109
 110
 111   FT_LOCAL( FT_Error )
 112   ps_parser_to_bytes( PS_Parser  parser,
 113                       FT_Byte*   bytes,
 114                       FT_Offset  max_bytes,
 115                       FT_ULong*  pnum_bytes,
 116                       FT_Bool    delimiters );
 117
 118
 119   FT_LOCAL( FT_Fixed )
 120   ps_parser_to_fixed( PS_Parser  parser,
 121                       FT_Int     power_ten );
 122
 123
 124   FT_LOCAL( FT_Int )
 125   ps_parser_to_coord_array( PS_Parser  parser,
 126                             FT_Int     max_coords,
 127                             FT_Short*  coords );
 128
 129   FT_LOCAL( FT_Int )
 130   ps_parser_to_fixed_array( PS_Parser  parser,
 131                             FT_Int     max_values,
 132                             FT_Fixed*  values,
 133                             FT_Int     power_ten );
 134
 135
 136   FT_LOCAL( void )
 137   ps_parser_init( PS_Parser  parser,
 138                   FT_Byte*   base,
 139                   FT_Byte*   limit,
 140                   FT_Memory  memory );
 141
 142   FT_LOCAL( void )
 143   ps_parser_done( PS_Parser  parser );
 144
 145
 146   /*************************************************************************/
 147   /*************************************************************************/
 148   /*****                                                               *****/
 149   /*****                            T1 BUILDER                         *****/
 150   /*****                                                               *****/
 151   /*************************************************************************/
 152   /*************************************************************************/
 153
 154   FT_LOCAL( void )
 155   t1_builder_init( T1_Builder    builder,
 156                    FT_Face       face,
 157                    FT_Size       size,
 158                    FT_GlyphSlot  glyph,
 159                    FT_Bool       hinting );
 160
 161   FT_LOCAL( void )
 162   t1_builder_done( T1_Builder  builder );
 163
 164   FT_LOCAL( FT_Error )
 165   t1_builder_check_points( T1_Builder  builder,
 166                            FT_Int      count );
 167
 168   FT_LOCAL( void )
 169   t1_builder_add_point( T1_Builder  builder,
 170                         FT_Pos      x,
 171                         FT_Pos      y,
 172                         FT_Byte     flag );
 173
 174   FT_LOCAL( FT_Error )
 175   t1_builder_add_point1( T1_Builder  builder,
 176                          FT_Pos      x,
 177                          FT_Pos      y );
 178
 179   FT_LOCAL( FT_Error )
 180   t1_builder_add_contour( T1_Builder  builder );
 181
 182
 183   FT_LOCAL( FT_Error )
 184   t1_builder_start_point( T1_Builder  builder,
 185                           FT_Pos      x,
 186                           FT_Pos      y );
 187
 188
 189   FT_LOCAL( void )
 190   t1_builder_close_contour( T1_Builder  builder );
 191
 192
 193   /*************************************************************************/
 194   /*************************************************************************/
 195   /*****                                                               *****/
 196   /*****                           CFF BUILDER                         *****/
 197   /*****                                                               *****/
 198   /*************************************************************************/
 199   /*************************************************************************/
 200
 201   FT_LOCAL( void )
 202   cff_builder_init( CFF_Builder*   builder,
 203                     TT_Face        face,
 204                     CFF_Size       size,
 205                     CFF_GlyphSlot  glyph,
 206                     FT_Bool        hinting );
 207
 208   FT_LOCAL( void )
 209   cff_builder_done( CFF_Builder*  builder );
 210
 211   FT_LOCAL( FT_Error )
 212   cff_check_points( CFF_Builder*  builder,
 213                     FT_Int        count );
 214
 215   FT_LOCAL( void )
 216   cff_builder_add_point( CFF_Builder*  builder,
 217                          FT_Pos        x,
 218                          FT_Pos        y,
 219                          FT_Byte       flag );
 220   FT_LOCAL( FT_Error )
 221   cff_builder_add_point1( CFF_Builder*  builder,
 222                           FT_Pos        x,
 223                           FT_Pos        y );
 224   FT_LOCAL( FT_Error )
 225   cff_builder_start_point( CFF_Builder*  builder,
 226                            FT_Pos        x,
 227                            FT_Pos        y );
 228   FT_LOCAL( void )
 229   cff_builder_close_contour( CFF_Builder*  builder );
 230
 231   FT_LOCAL( FT_Error )
 232   cff_builder_add_contour( CFF_Builder*  builder );
 233
 234
 235   /*************************************************************************/
 236   /*************************************************************************/
 237   /*****                                                               *****/
 238   /*****                            PS BUILDER                         *****/
 239   /*****                                                               *****/
 240   /*************************************************************************/
 241   /*************************************************************************/
 242
 243   FT_LOCAL( void )
 244   ps_builder_init( PS_Builder*  ps_builder,
 245                    void*        builder,
 246                    FT_Bool      is_t1 );
 247
 248
 249   FT_LOCAL( void )
 250   ps_builder_done( PS_Builder*  builder );
 251
 252   FT_LOCAL( FT_Error )
 253   ps_builder_check_points( PS_Builder*  builder,
 254                            FT_Int       count );
 255
 256   FT_LOCAL( void )
 257   ps_builder_add_point( PS_Builder*  builder,
 258                         FT_Pos       x,
 259                         FT_Pos       y,
 260                         FT_Byte      flag );
 261
 262   FT_LOCAL( FT_Error )
 263   ps_builder_add_point1( PS_Builder*  builder,
 264                          FT_Pos       x,
 265                          FT_Pos       y );
 266
 267   FT_LOCAL( FT_Error )
 268   ps_builder_add_contour( PS_Builder*  builder );
 269
 270   FT_LOCAL( FT_Error )
 271   ps_builder_start_point( PS_Builder*  builder,
 272                           FT_Pos       x,
 273                           FT_Pos       y );
 274
 275   FT_LOCAL( void )
 276   ps_builder_close_contour( PS_Builder*  builder );
 277
 278
 279   /*************************************************************************/
 280   /*************************************************************************/
 281   /*****                                                               *****/
 282   /*****                            OTHER                              *****/
 283   /*****                                                               *****/
 284   /*************************************************************************/
 285   /*************************************************************************/
 286
 287   FT_LOCAL( void )
 288   ps_decoder_init( PS_Decoder*  ps_decoder,
 289                    void*        decoder,
 290                    FT_Bool      is_t1 );
 291
 292   FT_LOCAL( void )
 293   t1_make_subfont( FT_Face      face,
 294                    PS_Private   priv,
 295                    CFF_SubFont  subfont );
 296
 297   FT_LOCAL( void )
 298   t1_decrypt( FT_Byte*   buffer,
 299               FT_Offset  length,
 300               FT_UShort  seed );
 301
 302
 303   FT_LOCAL( FT_UInt32 )
 304   cff_random( FT_UInt32  r );
 305
 306
 307 FT_END_HEADER
 308
 309 #endif /* PSOBJS_H_ */
 310
 311
 312 /* END */