forsyth20121205-174063a80cc13 years agoHistory
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/***************************************************************************//*                                                                         *//*  ftinit.c                                                               *//*                                                                         *//*    FreeType initialization layer (body).                                *//*                                                                         *//*  Copyright 1996-2001, 2002 by                                           *//*  David Turner, Robert Wilhelm, and Werner Lemberg.                      *//*                                                                         *//*  This file is part of the FreeType project, and may only be used,       *//*  modified, and distributed under the terms of the FreeType project      *//*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     *//*  this file you indicate that you have read the license and              *//*  understand and accept it fully.                                        *//*                                                                         *//***************************************************************************/   /*************************************************************************/  /*                                                                       */  /*  The purpose of this file is to implement the following two           */  /*  functions:                                                           */  /*                                                                       */  /*  FT_Add_Default_Modules():                                            */  /*     This function is used to add the set of default modules to a      */  /*     fresh new library object.  The set is taken from the header file  */  /*     `freetype/config/ftmodule.h'.  See the document `FreeType 2.0     */  /*     Build System' for more information.                               */  /*                                                                       */  /*  FT_Init_FreeType():                                                  */  /*     This function creates a system object for the current platform,   */  /*     builds a library out of it, then calls FT_Default_Drivers().      */  /*                                                                       */  /*  Note that even if FT_Init_FreeType() uses the implementation of the  */  /*  system object defined at build time, client applications are still   */  /*  able to provide their own `ftsystem.c'.                              */  /*                                                                       */  /*************************************************************************/  #include <ft2build.h>#include FT_CONFIG_CONFIG_H#include FT_INTERNAL_OBJECTS_H#include FT_INTERNAL_DEBUG_H#include FT_MODULE_H    /*************************************************************************/  /*                                                                       */  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */  /* messages during execution.                                            */  /*                                                                       */#undef  FT_COMPONENT#define FT_COMPONENT  trace_init #undef  FT_USE_MODULE#ifdef __cplusplus#define FT_USE_MODULE( x )  extern "C" const FT_Module_Class*  x;#else#define FT_USE_MODULE( x )  extern const FT_Module_Class*  x;#endif  #include FT_CONFIG_MODULES_H  #undef  FT_USE_MODULE#define FT_USE_MODULE( x )  (const FT_Module_Class*)&x,   static  const FT_Module_Class*  const ft_default_modules[] =  {#include FT_CONFIG_MODULES_H    0  };    /* documentation is in ftmodule.h */   FT_EXPORT_DEF( void )  FT_Add_Default_Modules( FT_Library  library )  {    FT_Error                       error;    const FT_Module_Class* const*  cur;      /* test for valid `library' delayed to FT_Add_Module() */     cur = ft_default_modules;    while ( *cur )    {      error = FT_Add_Module( library, *cur );      /* notify errors, but don't stop */      if ( error )      {        FT_ERROR(( "FT_Add_Default_Module: Cannot install `%s', error = 0x%x\n",                   (*cur)->module_name, error ));      }      cur++;    }  }    /* documentation is in freetype.h */   FT_EXPORT_DEF( FT_Error )  FT_Init_FreeType( FT_Library  *alibrary )  {    FT_Error   error;    FT_Memory  memory;      /* First of all, allocate a new system object -- this function is part */    /* of the system-specific component, i.e. `ftsystem.c'.                */     memory = FT_New_Memory();    if ( !memory )    {      FT_ERROR(( "FT_Init_FreeType: cannot find memory manager\n" ));      return FT_Err_Unimplemented_Feature;    }     /* build a library out of it, then fill it with the set of */    /* default drivers.                                        */     error = FT_New_Library( memory, alibrary );    if ( !error )    {      (*alibrary)->version_major = FREETYPE_MAJOR;      (*alibrary)->version_minor = FREETYPE_MINOR;      (*alibrary)->version_patch = FREETYPE_PATCH;       FT_Add_Default_Modules( *alibrary );    }     return error;  }    /* documentation is in freetype.h */   FT_EXPORT_DEF( FT_Error )  FT_Done_FreeType( FT_Library  library )  {    if ( library )    {      FT_Memory  memory = library->memory;        /* Discard the library object */      FT_Done_Library( library );       /* discard memory manager */      FT_Done_Memory( memory );    }     return FT_Err_Ok;  }  /* END */