kc3-lang/freetype/src/base/ftinit.c

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• Hash : 1c0d4acb
  Author :
  Date : 2000-06-06T20:41:48
  

  Fine-tuned a lot of tracing levels to make them more functional with ftview. Added a lot of \n to tracing messages. Fixed a serious bug in loading SBit offsets (missing parentheses around a xxx ? yyy : zzz construct). Replaced most GET_xxx() functions with calls to READ_Frame() in ttsbit.c

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• src/base/ftinit.c

• /***************************************************************************/
  /*                                                                         */
  /*  ftinit.c                                                               */
  /*                                                                         */
  /*    FreeType initialisation layer (body).                                */
  /*                                                                         */
  /*  Copyright 1996-2000 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_Default_Drivers():                                                */
    /*     This function is used to add the set of default drivers 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 <freetype/config/ftconfig.h>
  #include <freetype/internal/ftobjs.h>
  #include <freetype/internal/ftdebug.h>
  #include <freetype/internal/ftdriver.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_DRIVER
  #define FT_DRIVER( x )  extern FT_DriverInterface  x;
  
  #include <freetype/config/ftmodule.h>
  
  #undef  FT_DRIVER
  #define FT_DRIVER( x )  &x,
  
  static
  const FT_DriverInterface*  ft_default_drivers[] =
    {
  #include <freetype/config/ftmodule.h>
      0
    };
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Function>                                                            */
    /*    FT_Default_Drivers                                                 */
    /*                                                                       */
    /* <Description>                                                         */
    /*    Adds the set of default drivers to a given library object.         */
    /*                                                                       */
    /* <InOut>                                                               */
    /*    library :: A handle to a new library object.                       */
    /*                                                                       */
    FT_EXPORT_FUNC( void )  FT_Default_Drivers( FT_Library  library )
    {
      FT_Error                    error;
      const FT_DriverInterface**  cur;
  
  
      /* test for valid library delayed to FT_Add_Driver() */
  
      cur = ft_default_drivers;
      while ( *cur )
      {
        error = FT_Add_Driver( library, *cur );
        /* notify errors, but don't stop */
        if ( error )
        {
          FT_ERROR(( "FT_Default_Drivers: Cannot install `%s', error = %x\n",
                     (*cur)->driver_name, error ));
        }
        cur++;
      }
    }
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Function>                                                            */
    /*    FT_Init_FreeType                                                   */
    /*                                                                       */
    /* <Description>                                                         */
    /*    Initializes a new FreeType library object.  The set of drivers     */
    /*    that are registered by this function is determined at build time.  */
    /*                                                                       */
    /* <Output>                                                              */
    /*    library :: A handle to a new library object.                       */
    /*                                                                       */
    /* <Return>                                                              */
    /*    FreeTyoe error code.  0 means success.                             */
    /*                                                                       */
    FT_EXPORT_FUNC( FT_Error )  FT_Init_FreeType( FT_Library*  library )
    {
      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:" ));
        FT_ERROR(( " cannot find memory manager\n" ));
        return FT_Err_Unimplemented_Feature;
      }
  
      /* builds a library out of it, then fill it with the set of */
      /* default drivers.                                         */
  
      error = FT_New_Library( memory, library );
      if ( !error )
        FT_Default_Drivers( *library );
  
      return error;
    }
  
  
  /* END */
  

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