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, 2012, 2013 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
  26 #ifdef FT_CONFIG_OPTION_PIC
  27
  28   /* forward declaration of PIC init functions from ttdriver.c */
  29   FT_Error
  30   FT_Create_Class_tt_services( FT_Library           library,
  31                                FT_ServiceDescRec**  output_class );
  32   void
  33   FT_Destroy_Class_tt_services( FT_Library          library,
  34                                 FT_ServiceDescRec*  clazz );
  35   void
  36   FT_Init_Class_tt_service_gx_multi_masters(
  37     FT_Service_MultiMastersRec*  sv_mm );
  38   void
  39   FT_Init_Class_tt_service_truetype_glyf(
  40     FT_Service_TTGlyfRec*  sv_ttglyf );
  41
  42
  43   void
  44   tt_driver_class_pic_free( FT_Library  library )
  45   {
  46     FT_PIC_Container*  pic_container = &library->pic_container;
  47     FT_Memory          memory        = library->memory;
  48
  49
  50     if ( pic_container->truetype )
  51     {
  52       TTModulePIC*  container = (TTModulePIC*)pic_container->truetype;
  53
  54
  55       if ( container->tt_services )
  56         FT_Destroy_Class_tt_services( library, container->tt_services );
  57       container->tt_services = NULL;
  58       FT_FREE( container );
  59       pic_container->truetype = NULL;
  60     }
  61   }
  62
  63
  64   FT_Error
  65   tt_driver_class_pic_init( FT_Library  library )
  66   {
  67     FT_PIC_Container*  pic_container = &library->pic_container;
  68     FT_Error           error         = FT_Err_Ok;
  69     TTModulePIC*       container     = NULL;
  70     FT_Memory          memory        = library->memory;
  71
  72
  73     /* allocate pointer, clear and set global container pointer */
  74     if ( FT_ALLOC( container, sizeof ( *container ) ) )
  75       return error;
  76     FT_MEM_SET( container, 0, sizeof ( *container ) );
  77     pic_container->truetype = container;
  78
  79     /* initialize pointer table - this is how the module usually */
  80     /* 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
  92   Exit:
  93     if ( error )
  94       tt_driver_class_pic_free( library );
  95     return error;
  96   }
  97
  98 #endif /* FT_CONFIG_OPTION_PIC */
  99
 100
 101 /* END */