/****************************************************************************
 *
 * psobjs.h
 *
 *   Auxiliary functions for PostScript fonts (specification).
 *
 * Copyright (C) 1996-2020 by
 * David Turner, Robert Wilhelm, and Werner Lemberg.
 *
 * 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.
 *
 */


#ifndef PSOBJS_H_
#define PSOBJS_H_


#include <freetype/internal/psaux.h>
#include <freetype/internal/cffotypes.h>


FT_BEGIN_HEADER


  /*************************************************************************/
  /*************************************************************************/
  /*****                                                               *****/
  /*****                             T1_TABLE                          *****/
  /*****                                                               *****/
  /*************************************************************************/
  /*************************************************************************/


  FT_CALLBACK_TABLE
  const PS_Table_FuncsRec    ps_table_funcs;

  FT_CALLBACK_TABLE
  const PS_Parser_FuncsRec   ps_parser_funcs;

  FT_CALLBACK_TABLE
  const T1_Builder_FuncsRec  t1_builder_funcs;


  FT_LOCAL( FT_Error )
  ps_table_new( PS_Table   table,
                FT_Int     count,
                FT_Memory  memory );

  FT_LOCAL( FT_Error )
  ps_table_add( PS_Table     table,
                FT_Int       idx,
                const void*  object,
                FT_UInt      length );

  FT_LOCAL( void )
  ps_table_done( PS_Table  table );


  FT_LOCAL( void )
  ps_table_release( PS_Table  table );


  /*************************************************************************/
  /*************************************************************************/
  /*****                                                               *****/
  /*****                            T1 PARSER                          *****/
  /*****                                                               *****/
  /*************************************************************************/
  /*************************************************************************/


  FT_LOCAL( void )
  ps_parser_skip_spaces( PS_Parser  parser );

  FT_LOCAL( void )
  ps_parser_skip_PS_token( PS_Parser  parser );

  FT_LOCAL( void )
  ps_parser_to_token( PS_Parser  parser,
                      T1_Token   token );

  FT_LOCAL( void )
  ps_parser_to_token_array( PS_Parser  parser,
                            T1_Token   tokens,
                            FT_UInt    max_tokens,
                            FT_Int*    pnum_tokens );

  FT_LOCAL( FT_Error )
  ps_parser_load_field( PS_Parser       parser,
                        const T1_Field  field,
                        void**          objects,
                        FT_UInt         max_objects,
                        FT_ULong*       pflags );

  FT_LOCAL( FT_Error )
  ps_parser_load_field_table( PS_Parser       parser,
                              const T1_Field  field,
                              void**          objects,
                              FT_UInt         max_objects,
                              FT_ULong*       pflags );

  FT_LOCAL( FT_Long )
  ps_parser_to_int( PS_Parser  parser );


  FT_LOCAL( FT_Error )
  ps_parser_to_bytes( PS_Parser  parser,
                      FT_Byte*   bytes,
                      FT_Offset  max_bytes,
                      FT_ULong*  pnum_bytes,
                      FT_Bool    delimiters );


  FT_LOCAL( FT_Fixed )
  ps_parser_to_fixed( PS_Parser  parser,
                      FT_Int     power_ten );


  FT_LOCAL( FT_Int )
  ps_parser_to_coord_array( PS_Parser  parser,
                            FT_Int     max_coords,
                            FT_Short*  coords );

  FT_LOCAL( FT_Int )
  ps_parser_to_fixed_array( PS_Parser  parser,
                            FT_Int     max_values,
                            FT_Fixed*  values,
                            FT_Int     power_ten );


  FT_LOCAL( void )
  ps_parser_init( PS_Parser  parser,
                  FT_Byte*   base,
                  FT_Byte*   limit,
                  FT_Memory  memory );

  FT_LOCAL( void )
  ps_parser_done( PS_Parser  parser );


  /*************************************************************************/
  /*************************************************************************/
  /*****                                                               *****/
  /*****                            T1 BUILDER                         *****/
  /*****                                                               *****/
  /*************************************************************************/
  /*************************************************************************/

  FT_LOCAL( void )
  t1_builder_init( T1_Builder    builder,
                   FT_Face       face,
                   FT_Size       size,
                   FT_GlyphSlot  glyph,
                   FT_Bool       hinting );

  FT_LOCAL( void )
  t1_builder_done( T1_Builder  builder );

  FT_LOCAL( FT_Error )
  t1_builder_check_points( T1_Builder  builder,
                           FT_Int      count );

  FT_LOCAL( void )
  t1_builder_add_point( T1_Builder  builder,
                        FT_Pos      x,
                        FT_Pos      y,
                        FT_Byte     flag );

  FT_LOCAL( FT_Error )
  t1_builder_add_point1( T1_Builder  builder,
                         FT_Pos      x,
                         FT_Pos      y );

  FT_LOCAL( FT_Error )
  t1_builder_add_contour( T1_Builder  builder );


  FT_LOCAL( FT_Error )
  t1_builder_start_point( T1_Builder  builder,
                          FT_Pos      x,
                          FT_Pos      y );


  FT_LOCAL( void )
  t1_builder_close_contour( T1_Builder  builder );


  /*************************************************************************/
  /*************************************************************************/
  /*****                                                               *****/
  /*****                           CFF BUILDER                         *****/
  /*****                                                               *****/
  /*************************************************************************/
  /*************************************************************************/

  FT_LOCAL( void )
  cff_builder_init( CFF_Builder*   builder,
                    TT_Face        face,
                    CFF_Size       size,
                    CFF_GlyphSlot  glyph,
                    FT_Bool        hinting );

  FT_LOCAL( void )
  cff_builder_done( CFF_Builder*  builder );

  FT_LOCAL( FT_Error )
  cff_check_points( CFF_Builder*  builder,
                    FT_Int        count );

  FT_LOCAL( void )
  cff_builder_add_point( CFF_Builder*  builder,
                         FT_Pos        x,
                         FT_Pos        y,
                         FT_Byte       flag );
  FT_LOCAL( FT_Error )
  cff_builder_add_point1( CFF_Builder*  builder,
                          FT_Pos        x,
                          FT_Pos        y );
  FT_LOCAL( FT_Error )
  cff_builder_start_point( CFF_Builder*  builder,
                           FT_Pos        x,
                           FT_Pos        y );
  FT_LOCAL( void )
  cff_builder_close_contour( CFF_Builder*  builder );

  FT_LOCAL( FT_Error )
  cff_builder_add_contour( CFF_Builder*  builder );


  /*************************************************************************/
  /*************************************************************************/
  /*****                                                               *****/
  /*****                            PS BUILDER                         *****/
  /*****                                                               *****/
  /*************************************************************************/
  /*************************************************************************/

  FT_LOCAL( void )
  ps_builder_init( PS_Builder*  ps_builder,
                   void*        builder,
                   FT_Bool      is_t1 );


  FT_LOCAL( void )
  ps_builder_done( PS_Builder*  builder );

  FT_LOCAL( FT_Error )
  ps_builder_check_points( PS_Builder*  builder,
                           FT_Int       count );

  FT_LOCAL( void )
  ps_builder_add_point( PS_Builder*  builder,
                        FT_Pos       x,
                        FT_Pos       y,
                        FT_Byte      flag );

  FT_LOCAL( FT_Error )
  ps_builder_add_point1( PS_Builder*  builder,
                         FT_Pos       x,
                         FT_Pos       y );

  FT_LOCAL( FT_Error )
  ps_builder_add_contour( PS_Builder*  builder );

  FT_LOCAL( FT_Error )
  ps_builder_start_point( PS_Builder*  builder,
                          FT_Pos       x,
                          FT_Pos       y );

  FT_LOCAL( void )
  ps_builder_close_contour( PS_Builder*  builder );


  /*************************************************************************/
  /*************************************************************************/
  /*****                                                               *****/
  /*****                            OTHER                              *****/
  /*****                                                               *****/
  /*************************************************************************/
  /*************************************************************************/

  FT_LOCAL( void )
  ps_decoder_init( PS_Decoder*  ps_decoder,
                   void*        decoder,
                   FT_Bool      is_t1 );

  FT_LOCAL( void )
  t1_make_subfont( FT_Face      face,
                   PS_Private   priv,
                   CFF_SubFont  subfont );

  FT_LOCAL( void )
  t1_decrypt( FT_Byte*   buffer,
              FT_Offset  length,
              FT_UShort  seed );


  FT_LOCAL( FT_UInt32 )
  cff_random( FT_UInt32  r );


FT_END_HEADER

#endif /* PSOBJS_H_ */


/* END */
