kc3-lang/freetype/config/ftoption.h
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Hash : 37379e21
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Date : 2000-03-28T11:22:31
major changes to the library: - there is now a "convenience" API to manage glyphs in "include/ftglyph.h". See the demo program "ftstring" for an example.. - the raster interface has been changed in order to allow direct composition through user-provided callbacks. This has been tested but isn't demonstrated for now in "demos" - the FT_LOAD_NO_RECURSE flag is supported, as this is required by some new code in the auto-hinting engine - some bug fixed in FT_MulFix which made FT_xxx_Transform return incorrect results..
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config/ftoption.h
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/***************************************************************************/ /* */ /* ftoption.h */ /* */ /* User-selectable configuration macros. */ /* */ /* 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 /*************************************************************************/ /* */ /* 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/config/<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're sure that you'll 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 built with the "psnames" module compiled */ /* in. 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 the "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". */ /* */ /* 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 in `ftoption.h'*/ /* 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 /*************************************************************************/ /* */ /* When compiling FreeType as a DLL, some systems/compilers need a */ /* special keyword in front of each function definition instead of */ /* `extern'. */ /* */ /* The macros EXPORT_DEF and EXPORT_FUNC are thus used to define */ /* exported library function interfaces and exported library functions */ /* implementations respectively. */ /* */ /* If not defined here, they automatically default to `extern' and void */ /* later in this header file. */ /* */ #undef EXPORT_DEF #undef EXPORT_FUNC /*************************************************************************/ /* */ /* 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. */ /* */ #undef FT_DEBUG_LEVEL_ERROR #undef FT_DEBUG_LEVEL_TRACE /*************************************************************************/ /* */ /* Anti-aliasing support */ /* */ /* Undefine this macro only if you want to disable the anti-aliasing */ /* support in FreeType. This will save you about 5 Kb of code. It */ /* may be important for some embedded systems. */ /* */ #define FT_CONFIG_OPTION_ANTI_ALIAS /*************************************************************************/ /* */ /* Endianess performance improvement */ /* */ /* FreeType is completely endian-independent, and can thus be compiled */ /* directly on _any_ machine. However, some components of the library */ /* 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 */