| /***************************************************************************/ |
| /* */ |
| /* 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__ |
| |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* 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/<system>' 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 |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* 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 the non-ANSI `long long' 64-bit type. You can */ |
| /* activate it by defining the FTCALC_USE_LONG_LONG macro. Note that */ |
| /* this will produce many -ansi warnings during library compilation, and */ |
| /* that in many cases the generated code will not be smaller or faster! */ |
| /* */ |
| #undef FTCALC_USE_LONG_LONG |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* 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. */ |
| /* */ |
| #define 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 16384 |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* 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. */ |
| /* */ |
| #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 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 |
| |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| |
| #endif /* __FTOPTION_H__ */ |
| |
| |
| /* END */ |
