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      1 /***************************************************************************/
      2 /*                                                                         */
      3 /*  sfntpic.c                                                              */
      4 /*                                                                         */
      5 /*    The FreeType position independent code services for sfnt module.     */
      6 /*                                                                         */
      7 /*  Copyright 2009-2018 by                                                 */
      8 /*  Oran Agra and Mickey Gabel.                                            */
      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 #include <ft2build.h>
     20 #include FT_FREETYPE_H
     21 #include FT_INTERNAL_OBJECTS_H
     22 #include "sfntpic.h"
     23 #include "sferrors.h"
     24 
     25 
     26 #ifdef FT_CONFIG_OPTION_PIC
     27 
     28   /* forward declaration of PIC init functions from sfdriver.c */
     29   FT_Error
     30   FT_Create_Class_sfnt_services( FT_Library           library,
     31                                  FT_ServiceDescRec**  output_class );
     32   void
     33   FT_Destroy_Class_sfnt_services( FT_Library          library,
     34                                   FT_ServiceDescRec*  clazz );
     35   void
     36   FT_Init_Class_sfnt_service_bdf( FT_Service_BDFRec*  clazz );
     37   void
     38   FT_Init_Class_sfnt_interface( FT_Library       library,
     39                                 SFNT_Interface*  clazz );
     40   void
     41   FT_Init_Class_sfnt_service_glyph_dict(
     42     FT_Library                library,
     43     FT_Service_GlyphDictRec*  clazz );
     44   void
     45   FT_Init_Class_sfnt_service_ps_name(
     46     FT_Library                 library,
     47     FT_Service_PsFontNameRec*  clazz );
     48   void
     49   FT_Init_Class_tt_service_get_cmap_info(
     50     FT_Library              library,
     51     FT_Service_TTCMapsRec*  clazz );
     52   void
     53   FT_Init_Class_sfnt_service_sfnt_table(
     54     FT_Service_SFNT_TableRec*  clazz );
     55 
     56 
     57   /* forward declaration of PIC init functions from ttcmap.c */
     58   FT_Error
     59   FT_Create_Class_tt_cmap_classes( FT_Library       library,
     60                                    TT_CMap_Class**  output_class );
     61   void
     62   FT_Destroy_Class_tt_cmap_classes( FT_Library      library,
     63                                     TT_CMap_Class*  clazz );
     64 
     65 
     66   void
     67   sfnt_module_class_pic_free( FT_Library  library )
     68   {
     69     FT_PIC_Container*  pic_container = &library->pic_container;
     70     FT_Memory          memory        = library->memory;
     71 
     72 
     73     if ( pic_container->sfnt )
     74     {
     75       sfntModulePIC*  container = (sfntModulePIC*)pic_container->sfnt;
     76 
     77 
     78       if ( container->sfnt_services )
     79         FT_Destroy_Class_sfnt_services( library,
     80                                         container->sfnt_services );
     81       container->sfnt_services = NULL;
     82 
     83       if ( container->tt_cmap_classes )
     84         FT_Destroy_Class_tt_cmap_classes( library,
     85                                           container->tt_cmap_classes );
     86       container->tt_cmap_classes = NULL;
     87 
     88       FT_FREE( container );
     89       pic_container->sfnt = NULL;
     90     }
     91   }
     92 
     93 
     94   FT_Error
     95   sfnt_module_class_pic_init( FT_Library  library )
     96   {
     97     FT_PIC_Container*  pic_container = &library->pic_container;
     98     FT_Error           error         = FT_Err_Ok;
     99     sfntModulePIC*     container     = NULL;
    100     FT_Memory          memory        = library->memory;
    101 
    102 
    103     /* allocate pointer, clear and set global container pointer */
    104     if ( FT_ALLOC( container, sizeof ( *container ) ) )
    105       return error;
    106     FT_MEM_SET( container, 0, sizeof ( *container ) );
    107     pic_container->sfnt = container;
    108 
    109     /* initialize pointer table -                       */
    110     /* this is how the module usually expects this data */
    111     error = FT_Create_Class_sfnt_services( library,
    112                                            &container->sfnt_services );
    113     if ( error )
    114       goto Exit;
    115 
    116     error = FT_Create_Class_tt_cmap_classes( library,
    117                                              &container->tt_cmap_classes );
    118     if ( error )
    119       goto Exit;
    120 
    121     FT_Init_Class_sfnt_service_glyph_dict(
    122       library, &container->sfnt_service_glyph_dict );
    123     FT_Init_Class_sfnt_service_ps_name(
    124       library, &container->sfnt_service_ps_name );
    125     FT_Init_Class_tt_service_get_cmap_info(
    126       library, &container->tt_service_get_cmap_info );
    127     FT_Init_Class_sfnt_service_sfnt_table(
    128       &container->sfnt_service_sfnt_table );
    129 #ifdef TT_CONFIG_OPTION_BDF
    130     FT_Init_Class_sfnt_service_bdf( &container->sfnt_service_bdf );
    131 #endif
    132     FT_Init_Class_sfnt_interface( library, &container->sfnt_interface );
    133 
    134   Exit:
    135     if ( error )
    136       sfnt_module_class_pic_free( library );
    137     return error;
    138   }
    139 
    140 #endif /* FT_CONFIG_OPTION_PIC */
    141 
    142 
    143 /* END */
    144