reactos/dll/3rdparty/freetype/src/base/ftinit.c

   1 /***************************************************************************/
   2 /*                                                                         */
   3 /*  ftinit.c                                                               */
   4 /*                                                                         */
   5 /*    FreeType initialization layer (body).                                */
   6 /*                                                                         */
   7 /*  Copyright 1996-2001, 2002, 2005 by                                     */
   8 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
   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   /*                                                                       */
  20   /*  The purpose of this file is to implement the following two           */
  21   /*  functions:                                                           */
  22   /*                                                                       */
  23   /*  FT_Add_Default_Modules():                                            */
  24   /*     This function is used to add the set of default modules to a      */
  25   /*     fresh new library object.  The set is taken from the header file  */
  26   /*     `freetype/config/ftmodule.h'.  See the document `FreeType 2.0     */
  27   /*     Build System' for more information.                               */
  28   /*                                                                       */
  29   /*  FT_Init_FreeType():                                                  */
  30   /*     This function creates a system object for the current platform,   */
  31   /*     builds a library out of it, then calls FT_Default_Drivers().      */
  32   /*                                                                       */
  33   /*  Note that even if FT_Init_FreeType() uses the implementation of the  */
  34   /*  system object defined at build time, client applications are still   */
  35   /*  able to provide their own `ftsystem.c'.                              */
  36   /*                                                                       */
  37   /*************************************************************************/
  38
  39
  40 #include <ft2build.h>
  41 #include FT_CONFIG_CONFIG_H
  42 #include FT_INTERNAL_OBJECTS_H
  43 #include FT_INTERNAL_DEBUG_H
  44 #include FT_MODULE_H
  45
  46
  47   /*************************************************************************/
  48   /*                                                                       */
  49   /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
  50   /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
  51   /* messages during execution.                                            */
  52   /*                                                                       */
  53 #undef  FT_COMPONENT
  54 #define FT_COMPONENT  trace_init
  55
  56 #undef  FT_USE_MODULE
  57 #ifdef __cplusplus
  58 #define FT_USE_MODULE( x )  extern "C" const FT_Module_Class  x;
  59 #else
  60 #define FT_USE_MODULE( x )  extern const FT_Module_Class  x;
  61 #endif
  62
  63
  64 #include FT_CONFIG_MODULES_H
  65
  66
  67 #undef  FT_USE_MODULE
  68 #define FT_USE_MODULE( x )  (const FT_Module_Class*)&(x),
  69
  70   static
  71   const FT_Module_Class*  const ft_default_modules[] =
  72   {
  73 #include FT_CONFIG_MODULES_H
  74     0
  75   };
  76
  77
  78   /* documentation is in ftmodapi.h */
  79
  80   FT_EXPORT_DEF( void )
  81   FT_Add_Default_Modules( FT_Library  library )
  82   {
  83     FT_Error                       error;
  84     const FT_Module_Class* const*  cur;
  85
  86
  87     /* test for valid `library' delayed to FT_Add_Module() */
  88
  89     cur = ft_default_modules;
  90     while ( *cur )
  91     {
  92       error = FT_Add_Module( library, *cur );
  93       /* notify errors, but don't stop */
  94       if ( error )
  95       {
  96         FT_ERROR(( "FT_Add_Default_Module: Cannot install `%s', error = 0x%x\n",
  97                    (*cur)->module_name, error ));
  98       }
  99       cur++;
 100     }
 101   }
 102
 103
 104   /* documentation is in freetype.h */
 105
 106   FT_EXPORT_DEF( FT_Error )
 107   FT_Init_FreeType( FT_Library  *alibrary )
 108   {
 109     FT_Error   error;
 110     FT_Memory  memory;
 111
 112
 113     /* First of all, allocate a new system object -- this function is part */
 114     /* of the system-specific component, i.e. `ftsystem.c'.                */
 115
 116     memory = FT_New_Memory();
 117     if ( !memory )
 118     {
 119       FT_ERROR(( "FT_Init_FreeType: cannot find memory manager\n" ));
 120       return FT_Err_Unimplemented_Feature;
 121     }
 122
 123     /* build a library out of it, then fill it with the set of */
 124     /* default drivers.                                        */
 125
 126     error = FT_New_Library( memory, alibrary );
 127     if ( !error )
 128     {
 129       (*alibrary)->version_major = FREETYPE_MAJOR;
 130       (*alibrary)->version_minor = FREETYPE_MINOR;
 131       (*alibrary)->version_patch = FREETYPE_PATCH;
 132
 133       FT_Add_Default_Modules( *alibrary );
 134     }
 135
 136     return error;
 137   }
 138
 139
 140   /* documentation is in freetype.h */
 141
 142   FT_EXPORT_DEF( FT_Error )
 143   FT_Done_FreeType( FT_Library  library )
 144   {
 145     if ( library )
 146     {
 147       FT_Memory  memory = library->memory;
 148
 149
 150       /* Discard the library object */
 151       FT_Done_Library( library );
 152
 153       /* discard memory manager */
 154       FT_Done_Memory( memory );
 155     }
 156
 157     return FT_Err_Ok;
 158   }
 159
 160
 161 /* END */