kc3-lang/freetype/src/pfr/pfrload.h

Branch : - branch - master v2.13 - tag -

• Show log

  Commit

• Author : Alexei Podtelezhnikov
  Date : 2024-01-27 11:11:22
  Hash : 47574f7e
  Message : Update all copyright notices.

• src/pfr/pfrload.h

• /****************************************************************************
   *
   * pfrload.h
   *
   *   FreeType PFR loader (specification).
   *
   * Copyright (C) 2002-2024 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 PFRLOAD_H_
  #define PFRLOAD_H_
  
  #include "pfrobjs.h"
  #include <freetype/internal/ftstream.h>
  
  
  FT_BEGIN_HEADER
  
    /* some size checks should be always done (mainly to prevent */
    /* excessive allocation for malformed data), ...             */
  #define PFR_CHECK_SIZE( x )  do                       \
                               {                        \
                                 if ( p + (x) > limit ) \
                                   goto Too_Short;      \
                               } while ( 0 )
  
    /* ... and some only if intensive checking is explicitly requested */
  #ifdef PFR_CONFIG_NO_CHECKS
  #define PFR_CHECK( x )  do { } while ( 0 )
  #else
  #define PFR_CHECK  PFR_CHECK_SIZE
  #endif
  
  #define PFR_NEXT_BYTE( p )    FT_NEXT_BYTE( p )
  #define PFR_NEXT_INT8( p )    FT_NEXT_CHAR( p )
  #define PFR_NEXT_SHORT( p )   FT_NEXT_SHORT( p )
  #define PFR_NEXT_USHORT( p )  FT_NEXT_USHORT( p )
  #define PFR_NEXT_LONG( p )    FT_NEXT_OFF3( p )
  #define PFR_NEXT_ULONG( p )   FT_NEXT_UOFF3( p )
  
  
   /* handling extra items */
  
    typedef FT_Error
    (*PFR_ExtraItem_ParseFunc)( FT_Byte*    p,
                                FT_Byte*    limit,
                                FT_Pointer  data );
  
    typedef struct  PFR_ExtraItemRec_
    {
      FT_UInt                  type;
      PFR_ExtraItem_ParseFunc  parser;
  
    } PFR_ExtraItemRec;
  
    typedef const struct PFR_ExtraItemRec_*  PFR_ExtraItem;
  
  
    FT_LOCAL( FT_Error )
    pfr_extra_items_skip( FT_Byte*  *pp,
                          FT_Byte*  limit );
  
    FT_LOCAL( FT_Error )
    pfr_extra_items_parse( FT_Byte*      *pp,
                           FT_Byte*       limit,
                           PFR_ExtraItem  item_list,
                           FT_Pointer     item_data );
  
  
    /* load a PFR header */
    FT_LOCAL( FT_Error )
    pfr_header_load( PFR_Header  header,
                     FT_Stream   stream );
  
    /* check a PFR header */
    FT_LOCAL( FT_Bool )
    pfr_header_check( PFR_Header  header );
  
  
    /* return number of logical fonts in this file */
    FT_LOCAL( FT_Error )
    pfr_log_font_count( FT_Stream   stream,
                        FT_UInt32   log_section_offset,
                        FT_Long    *acount );
  
    /* load a pfr logical font entry */
    FT_LOCAL( FT_Error )
    pfr_log_font_load( PFR_LogFont  log_font,
                       FT_Stream    stream,
                       FT_UInt      face_index,
                       FT_UInt32    section_offset,
                       FT_Bool      size_increment );
  
  
    /* load a physical font entry */
    FT_LOCAL( FT_Error )
    pfr_phy_font_load( PFR_PhyFont  phy_font,
                       FT_Stream    stream,
                       FT_UInt32    offset,
                       FT_UInt32    size );
  
    /* finalize a physical font */
    FT_LOCAL( void )
    pfr_phy_font_done( PFR_PhyFont  phy_font,
                       FT_Memory    memory );
  
    /* */
  
  FT_END_HEADER
  
  #endif /* PFRLOAD_H_ */
  
  
  /* END */