src/truetype/ttpic.c

   1 /***************************************************************************/
   2 /*                                                                         */
   3 /*  ttpic.c                                                                */
   4 /*                                                                         */
   5 /*    The FreeType position independent code services for truetype module. */
   6 /*                                                                         */
   7 /*  Copyright 2009, 2010 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 #include "tterrors.h"
  24
  25 #ifdef FT_CONFIG_OPTION_PIC
  26
  27   /* forward declaration of PIC init functions from ttdriver.c */
  28   FT_Error
  29   FT_Create_Class_tt_services( FT_Library           library,
  30                                FT_ServiceDescRec**  output_class );
  31
  32   void
  33   FT_Destroy_Class_tt_services( FT_Library          library,
  34                                 FT_ServiceDescRec*  clazz );
  35
  36   void
  37   FT_Init_Class_tt_service_gx_multi_masters(
  38     FT_Service_MultiMastersRec*  sv_mm );
  39
  40   void
  41   FT_Init_Class_tt_service_truetype_glyf(
  42     FT_Service_TTGlyfRec*  sv_ttglyf );
  43
  44   void
  45   tt_driver_class_pic_free( FT_Library  library )
  46   {
  47     FT_PIC_Container*  pic_container = &library->pic_container;
  48     FT_Memory  memory = library->memory;
  49
  50
  51     if ( pic_container->truetype )
  52     {
  53       TTModulePIC*  container = (TTModulePIC*)pic_container->truetype;
  54
  55
  56       if ( container->tt_services )
  57         FT_Destroy_Class_tt_services( library, container->tt_services );
  58       container->tt_services = NULL;
  59       FT_FREE( container );
  60       pic_container->truetype = NULL;
  61     }
  62   }
  63
  64
  65   FT_Error
  66   tt_driver_class_pic_init( FT_Library  library )
  67   {
  68     FT_PIC_Container*  pic_container = &library->pic_container;
  69     FT_Error           error         = TT_Err_Ok;
  70     TTModulePIC*       container;
  71     FT_Memory          memory        = library->memory;
  72
  73
  74     /* allocate pointer, clear and set global container pointer */
  75     if ( FT_ALLOC ( container, sizeof ( *container ) ) )
  76       return error;
  77     FT_MEM_SET( container, 0, sizeof ( *container ) );
  78     pic_container->truetype = container;
  79
  80     /* initialize pointer table - this is how the module usually expects this data */
  81     error = FT_Create_Class_tt_services( library,
  82                                          &container->tt_services );
  83     if ( error )
  84       goto Exit;
  85 #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
  86     FT_Init_Class_tt_service_gx_multi_masters(
  87       &container->tt_service_gx_multi_masters );
  88 #endif
  89     FT_Init_Class_tt_service_truetype_glyf(
  90       &container->tt_service_truetype_glyf );
  91 Exit:
  92     if ( error )
  93       tt_driver_class_pic_free( library );
  94     return error;
  95   }
  96
  97 #endif /* FT_CONFIG_OPTION_PIC */
  98
  99
 100 /* END */