ftoption.h

Qt/Embedded是一个多平台的C++图形用户界面应用程序框架

  /*   provide improved routines for the cases where endianess is known.   */
  /*                                                                       */
  /*   It usually results in speed-ups and reduced code size.  Note that   */
  /*   you should not define both of these macros.                         */
  /*                                                                       */
  /*                                                                       */
  /*   NOTE: For now, only the scan-line converter (base/ftraster.c) uses  */
  /*         these macros to speed-up some anti-alias rendering routines.  */
  /*                                                                       */
#undef  FT_CONFIG_OPTION_LITTLE_ENDIAN
#undef  FT_CONFIG_OPTION_BIG_ENDIAN


  /*************************************************************************/
  /*                                                                       */
  /*    The size in bytes of the render pool used by the scan-line         */
  /*    converter to do all of its work.                                   */
  /*                                                                       */
  /*    This must be greater than 4 Kb                                     */
  /*                                                                       */
#define FT_RENDER_POOL_SIZE   8192


  /*************************************************************************/
  /*                                                                       */
  /*    FT_MAX_DRIVERS                                                     */
  /*                                                                       */
  /*    The maximum number of font drivers that can be registered in a     */
  /*    single FreeType library object.  8 seems to be a good choice due   */
  /*    to the relative low actual number of drivers ;-)                   */
  /*                                                                       */
  /*    If you don't intend to register new drivers at runtime, you        */
  /*    certainly do not need to change this value..                       */
  /*                                                                       */
#define FT_MAX_DRIVERS  8


  /*************************************************************************/
  /*                                                                       */
  /*    FT_MAX_EXTENSIONS                                                  */
  /*                                                                       */
  /*    The maximum number of extensions that can be registered in a       */
  /*    single font driver. 8 seems to be a good choice for now..          */
  /*                                                                       */
  /*    If you don't know what this means, you certainly do not need to    */
  /*    change this value..                                                */
  /*                                                                       */
#define FT_MAX_EXTENSIONS  8


  /*************************************************************************/
  /*                                                                       */
  /*    FT_MAX_GLYPH_FORMATS                                               */
  /*                                                                       */
  /*    The maximum number of glyph image formats that might be registered */
  /*    in a given library instance. 8 seems to be a good choice due to    */
  /*    the relatively low number of current formats ;-)                   */
  /*                                                                       */
#define FT_MAX_GLYPH_FORMATS  8

  /*************************************************************************/
  /*************************************************************************/
  /****                                                                 ****/
  /****        S F N T   D R I V E R    C O N F I G U R A T I O N       ****/
  /****                                                                 ****/
  /*************************************************************************/
  /*************************************************************************/

  /*************************************************************************/
  /*                                                                       */
  /* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support       */
  /* embedded bitmaps in all formats using the SFNT module (namely         */
  /* TrueType & OpenType).                                                 */
  /*                                                                       */
#define  TT_CONFIG_OPTION_EMBEDDED_BITMAPS


  /*************************************************************************/
  /*                                                                       */
  /* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to    */
  /* load and enumerate the glyph Postscript names in a TrueType or        */
  /* OpenType file.                                                        */
  /*                                                                       */
  /* Note that when you do not compile the "psnames" module by undefining  */
  /* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the "sfnt" module will   */
  /* contain additional code used to read the PS Names table from a font.  */
  /*                                                                       */
  /* (by default, the module uses "psnames" to extract glyph names)..      */
  /*                                                                       */
#define  TT_CONFIG_OPTION_POSTSCRIPT_NAMES


  /*************************************************************************/
  /*************************************************************************/
  /****                                                                 ****/
  /****    T R U E T Y P E   D R I V E R    C O N F I G U R A T I O N   ****/
  /****                                                                 ****/
  /*************************************************************************/
  /*************************************************************************/

  /*************************************************************************/
  /*                                                                       */
  /* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile   */
  /* a bytecode interpreter in the TrueType driver. Note that there are    */
  /* important patent issues related to the use of the interpreter.        */
  /*                                                                       */
  /* By undefining this, you'll only compile the code necessary to load    */
  /* TrueType glyphs without hinting..                                     */
  /*                                                                       */
#define  TT_CONFIG_OPTION_BYTECODE_INTERPRETER

  /*************************************************************************/
  /*                                                                       */
  /* Define TT_CONFIG_OPTION_INTERPRETER_SWITCH to compile the TrueType    */
  /* bytecode interpreter with a huge switch statement, rather than a      */
  /* call table.  This results in smaller and faster code for a number of  */
  /* architectures.                                                        */
  /*                                                                       */
  /* Note however that on some compiler/processor combinations, undefining */
  /* this macro will generate a faster, though larger, code.               */
  /*                                                                       */
#define TT_CONFIG_OPTION_INTERPRETER_SWITCH

  /* The maximum number of sub-glyphs in a TrueType composite glyph */
#define TT_MAX_SUBGLYPHS  32

  /*************************************************************************/
  /*************************************************************************/
  /****                                                                 ****/
  /****      T Y P E 1   D R I V E R    C O N F I G U R A T I O N       ****/
  /****                                                                 ****/
  /*************************************************************************/
  /*************************************************************************/

/********************************************************************/
/* T1_MAX_STACK_DEPTH is the maximal depth of the token stack used  */
/* by the Type 1 parser (see t1load.c). A minimum of 16 is required */
/*                                                                  */
#define T1_MAX_STACK_DEPTH  16

/*******************************************************************/
/* T1_MAX_DICT_DEPTH is the maximal depth of nest dictionaries and */
/* arrays in the Type 1 stream (see t1load.c). A minimum of 4 is   */
/* required                                                        */
#define T1_MAX_DICT_DEPTH   5

/***********************************************************************/
/* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */
/* calls during glyph loading                                          */
#define T1_MAX_SUBRS_CALLS   8

/*****************************************************************/
/* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity */
#define T1_MAX_CHARSTRINGS_OPERANDS  32


/*******************************************************************/
/* Define T1_CONFIG_OPTION_DISABLE_HINTER if you want to generate  */
/* a driver with no hinter. This can be useful to debug the parser */
/*                                                                 */
#undef  T1_CONFIG_OPTION_DISABLE_HINTER

/*******************************************************************/
/* Define this configuration macro if you want to prevent the      */
/* compilation of "t1afm", which is in charge of reading Type1     */
/* AFM files into an existing face. Note that when set, the T1     */
/* driver will be unable to produce kerning distances..            */
/*                                                                 */
#undef  T1_CONFIG_OPTION_NO_AFM



#endif /* FTOPTION_H */