/***************************************************************************/ /* */ /* ftoption.h */ /* */ /* User-selectable configuration macros (specification only). */ /* */ /* 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. */ /* */ /***************************************************************************/ #ifndef __FTOPTION_H__ #define __FTOPTION_H__ #include FT_BEGIN_HEADER /*************************************************************************/ /* */ /* USER-SELECTABLE CONFIGURATION MACROS */ /* */ /* These macros can be toggled by developers to enable or disable */ /* certain aspects of FreeType. This is a default file, where all major */ /* options are enabled. */ /* */ /* Note that if some modifications are required for your build, we */ /* advise you to put a modified copy of this file in your build */ /* directory, rather than modifying it in-place. */ /* */ /* The build directory is normally `freetype/builds/' and */ /* contains build or system-specific files that are included in */ /* priority when building the library. */ /* */ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** G E N E R A L F R E E T Y P E 2 C O N F I G U R A T I O N ****/ /**** ****/ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /* */ /* Convenience functions support */ /* */ /* Some functions of the FreeType 2 API are provided as a convenience */ /* for client applications and developers. However, they are not */ /* required to build and run the library itself. */ /* */ /* By defining this configuration macro, you'll disable the */ /* compilation of these functions at build time. This can be useful */ /* to reduce the library's code size when you don't need any of */ /* these functions. */ /* */ /* All convenience functions are declared as such in their */ /* documentation. */ /* */ /*#undef FT_CONFIG_OPTION_NO_CONVENIENCE_FUNCS */ /*************************************************************************/ /* */ /* Module errors */ /* */ /* If this macro is set (which is the default), the higher byte of an */ /* error code gives the module in which the error has occurred, while */ /* the lower byte is the real error code. */ /* */ /* Unsetting this macro makes sense for backwards compatibility; only */ /* the real error code is emitted, and the higher byte is always zero. */ /* */ /* More details can be found in the files ftmoderr.h and fterrors.h. */ /* */ #define FT_CONFIG_OPTION_USE_MODULE_ERRORS /*************************************************************************/ /* */ /* Alternate Glyph Image Format support */ /* */ /* By default, the glyph images returned by the FreeType glyph loader */ /* can either be a pixmap or a vectorial outline defined through */ /* Bezier control points. When defining the following configuration */ /* macro, some font drivers will be able to register alternate */ /* glyph image formats. */ /* */ /* Unset this macro if you are sure that you will never use a font */ /* driver with an alternate glyph format; this will reduce the size of */ /* the base layer code. */ /* */ /* Note that a few Type 1 fonts, as well as Windows `vector' fonts */ /* use a vector `plotter' format that isn't supported when this */ /* macro is undefined. */ /* */ #define FT_CONFIG_OPTION_ALTERNATE_GLYPH_FORMATS /*************************************************************************/ /* */ /* Glyph Postscript Names handling */ /* */ /* By default, FreeType 2 is compiled with the `PSNames' module. This */ /* This module is in charge of converting a glyph name string into a */ /* Unicode value, or return a Macintosh standard glyph name for the */ /* use with the TrueType `post' table. */ /* */ /* Undefine this macro if you do not want `PSNames' compiled in your */ /* build of FreeType. This has the following effects: */ /* */ /* - The TrueType driver will provide its own set of glyph names, */ /* if you build it to support postscript names in the TrueType */ /* `post' table. */ /* */ /* - The Type 1 driver will not be able to synthetize a Unicode */ /* charmap out of the glyphs found in the fonts. */ /* */ /* You would normally undefine this configuration macro when building */ /* a version of FreeType that doesn't contain a Type 1 or CFF driver. */ /* */ #define FT_CONFIG_OPTION_POSTSCRIPT_NAMES /*************************************************************************/ /* */ /* Postscript Names to Unicode Values support */ /* */ /* By default, FreeType 2 is built with the `PSNames' module compiled */ /* in. Among other things, the module is used to convert a glyph name */ /* into a Unicode value. This is especially useful in order to */ /* synthetize on the fly a Unicode charmap from the CFF/Type 1 driver */ /* through a big table named the `Adobe Glyph List' (AGL). */ /* */ /* Undefine this macro if you do not want the Adobe Glyph List */ /* compiled in your `PSNames' module. The Type 1 driver will not be */ /* able to synthetize a Unicode charmap out of the glyphs found in the */ /* fonts. */ /* */ #define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST /*************************************************************************/ /* */ /* Many compilers provide a non-ANSI 64-bit data type that can be used */ /* by FreeType to speed up some computations. However, this will create */ /* some problems when compiling the library in strict ANSI mode. */ /* */ /* For this reason, the use of 64-bit ints is normally disabled when */ /* the __STDC__ macro is defined. You can however disable this by */ /* defining here the macro FT_CONFIG_OPTION_FORCE_INT64. */ /* */ /* For most compilers, this will only create compilation warnings */ /* when building the library. */ /* */ /* ObNote: The compiler-specific 64-bit integers are detected in the */ /* file "ftconfig.h" either statically, or through Autoconf */ /* on platforms that support it. */ /* */ #define FT_CONFIG_OPTION_FORCE_INT64 /*************************************************************************/ /* */ /* DLL export compilation */ /* */ /* When compiling FreeType as a DLL, some systems/compilers need a */ /* special keyword in front OR after the return type of function */ /* declarations. */ /* */ /* Two macros are used within the FreeType source code to define */ /* exported library functions: FT_EXPORT and FT_EXPORT_DEF. */ /* */ /* FT_EXPORT( return_type ) */ /* */ /* is used in a function declaration, as in */ /* */ /* FT_EXPORT( FT_Error ) */ /* FT_Init_FreeType( FT_Library* alibrary ); */ /* */ /* */ /* FT_EXPORT_DEF( return_type ) */ /* */ /* is used in a function definition, as in */ /* */ /* FT_EXPORT_DEF( FT_Error ) */ /* FT_Init_FreeType( FT_Library* alibrary ) */ /* { */ /* ... some code ... */ /* return FT_Err_Ok; */ /* } */ /* */ /* You can provide your own implementation of FT_EXPORT and */ /* FT_EXPORT_DEF here if you want. If you leave them undefined, they */ /* will be later automatically defined as `extern return_type' to */ /* allow normal compilation. */ /* */ #undef FT_EXPORT #undef FT_EXPORT_DEF /*************************************************************************/ /* */ /* Debug level */ /* */ /* FreeType can be compiled in debug or trace mode. In debug mode, */ /* errors are reported through the `ftdebug' component. In trace */ /* mode, additional messages are sent to the standard output during */ /* execution. */ /* */ /* Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode. */ /* Define FT_DEBUG_LEVEL_TRACE to build it in trace mode. */ /* */ /* Don't define any of these macros to compile in `release' mode! */ /* */ /* #define FT_DEBUG_LEVEL_ERROR */ /* #define FT_DEBUG_LEVEL_TRACE */ /*************************************************************************/ /* */ /* Computation Algorithms */ /* */ /* Used for debugging, this configuration macro should disappear */ /* soon. */ /* */ #undef FT_CONFIG_OPTION_OLD_CALCS /*************************************************************************/ /* */ /* 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 4kByte. */ /* */ #define FT_RENDER_POOL_SIZE 32768L /*************************************************************************/ /* */ /* FT_MAX_MODULES */ /* */ /* The maximum number of modules that can be registered in a single */ /* FreeType library object. 16 is the default. */ /* */ #define FT_MAX_MODULES 16 /*************************************************************************/ /* */ /* FT_MAX_EXTENSIONS */ /* */ /* The maximum number of extensions that can be registered in a single */ /* font driver. 8 is the default. */ /* */ /* If you don't know what this means, you certainly do not need to */ /* change this value. */ /* */ #define FT_MAX_EXTENSIONS 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 /*************************************************************************/ /* */ /* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to */ /* access the internal name table in a SFNT-based format like TrueType */ /* or OpenType. The name table contains various strings used to */ /* describe the font, like family name, copyright, version, etc. It */ /* does not contain any glyph name though. */ /* */ /* Accessing SFNT names is done through the functions declared in */ /* `freetype/ftnames.h'. */ /* */ #define TT_CONFIG_OPTION_SFNT_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 will only compile the code necessary to load */ /* TrueType glyphs without hinting. */ /* */ /*#undef 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 faster, though larger, code. */ /* */ #define TT_CONFIG_OPTION_INTERPRETER_SWITCH /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** 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_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 16 /*************************************************************************/ /* */ /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */ /* minimum of 16 is required. */ /* */ /* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256. */ /* */ #define T1_MAX_CHARSTRINGS_OPERANDS 256 /*************************************************************************/ /* */ /* 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 Type 1 AFM */ /* files into an existing face. Note that if set, the T1 driver will be */ /* unable to produce kerning distances. */ /* */ #undef T1_CONFIG_OPTION_NO_AFM /*************************************************************************/ /* */ /* Define this configuration macro if you want to prevent the */ /* compilation of the Multiple Masters font support in the Type 1 */ /* driver. */ /* */ #undef T1_CONFIG_OPTION_NO_MM_SUPPORT FT_END_HEADER #endif /* __FTOPTION_H__ */ /* END */