thirdparty/freetype-2.3.12/src/truetype/ttpic.c

   1 /***************************************************************************/
   2 /*                                                                         */
   3 /*  ttpic.c                                                                */
   4 /*                                                                         */
   5 /*    The FreeType position independent code services for truetype module. */
   6 /*                                                                         */
   7 /*  Copyright 2009 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 "ttpic.h"
  23
  24 #ifdef FT_CONFIG_OPTION_PIC
  25
  26   /* forward declaration of PIC init functions from ttdriver.c */
  27   FT_Error FT_Create_Class_tt_services( FT_Library, FT_ServiceDescRec**);
  28   void FT_Destroy_Class_tt_services( FT_Library, FT_ServiceDescRec*);
  29   void FT_Init_Class_tt_service_gx_multi_masters(FT_Service_MultiMastersRec*);
  30   void FT_Init_Class_tt_service_truetype_glyf(FT_Service_TTGlyfRec*);
  31
  32   void
  33   tt_driver_class_pic_free(  FT_Library library )
  34   {
  35     FT_PIC_Container* pic_container = &library->pic_container;
  36     FT_Memory memory = library->memory;
  37     if ( pic_container->truetype )
  38     {
  39       TTModulePIC* container = (TTModulePIC*)pic_container->truetype;
  40       if(container->tt_services)
  41         FT_Destroy_Class_tt_services(library, container->tt_services);
  42       container->tt_services = NULL;
  43       FT_FREE( container );
  44       pic_container->truetype = NULL;
  45     }
  46   }
  47
  48   FT_Error
  49   tt_driver_class_pic_init(  FT_Library library )
  50   {
  51     FT_PIC_Container* pic_container = &library->pic_container;
  52     FT_Error        error = FT_Err_Ok;
  53     TTModulePIC* container;
  54     FT_Memory memory = library->memory;
  55
  56     /* allocate pointer, clear and set global container pointer */
  57     if ( FT_ALLOC ( container, sizeof ( *container ) ) )
  58       return error;
  59     FT_MEM_SET( container, 0, sizeof(*container) );
  60     pic_container->truetype = container;
  61
  62     /* initialize pointer table - this is how the module usually expects this data */
  63     error = FT_Create_Class_tt_services(library, &container->tt_services);
  64     if(error)
  65       goto Exit;
  66 #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
  67     FT_Init_Class_tt_service_gx_multi_masters(&container->tt_service_gx_multi_masters);
  68 #endif
  69     FT_Init_Class_tt_service_truetype_glyf(&container->tt_service_truetype_glyf);
  70 Exit:
  71     if(error)
  72       tt_driver_class_pic_free(library);
  73     return error;
  74   }
  75
  76 #endif /* FT_CONFIG_OPTION_PIC */
  77
  78
  79 /* END */