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Edit: ftoption.h

/***************************************************************************/ /* */ /* ftoption.h */ /* */ /* User-selectable configuration macros (specification only). */ /* */ /* Copyright 1996-2017 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 <ft2build.h> FT_BEGIN_HEADER /*************************************************************************/ /* */ /* USER-SELECTABLE CONFIGURATION MACROS */ /* */ /* This file contains the default configuration macro definitions for */ /* a standard build of the FreeType library. There are three ways to */ /* use this file to build project-specific versions of the library: */ /* */ /* - You can modify this file by hand, but this is not recommended in */ /* cases where you would like to build several versions of the */ /* library from a single source directory. */ /* */ /* - You can put a copy of this file in your build directory, more */ /* precisely in `$BUILD/freetype/config/ftoption.h', where `$BUILD' */ /* is the name of a directory that is included _before_ the FreeType */ /* include path during compilation. */ /* */ /* The default FreeType Makefiles and Jamfiles use the build */ /* directory `builds/<system>' by default, but you can easily change */ /* that for your own projects. */ /* */ /* - Copy the file <ft2build.h> to `$BUILD/ft2build.h' and modify it */ /* slightly to pre-define the macro FT_CONFIG_OPTIONS_H used to */ /* locate this file during the build. For example, */ /* */ /* #define FT_CONFIG_OPTIONS_H <myftoptions.h> */ /* #include <freetype/config/ftheader.h> */ /* */ /* will use `$BUILD/myftoptions.h' instead of this file for macro */ /* definitions. */ /* */ /* Note also that you can similarly pre-define the macro */ /* FT_CONFIG_MODULES_H used to locate the file listing of the modules */ /* that are statically linked to the library at compile time. By */ /* default, this file is <freetype/config/ftmodule.h>. */ /* */ /* We highly recommend using the third method whenever possible. */ /* */ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** 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 ****/ /**** ****/ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /* */ /* If you enable this configuration option, FreeType recognizes an */ /* environment variable called `FREETYPE_PROPERTIES', which can be used */ /* to control the various font drivers and modules. The controllable */ /* properties are listed in the section `Controlling FreeType Modules' */ /* in the reference's table of contents; currently there are properties */ /* for the auto-hinter (file `ftautoh.h'), CFF (file `ftcffdrv.h'), */ /* TrueType (file `ftttdrv.h'), and PCF (file `ftpcfdrv.h'). */ /* */ /* `FREETYPE_PROPERTIES' has the following syntax form (broken here into */ /* multiple lines for better readability). */ /* */ /* <optional whitespace> */ /* <module-name1> ':' */ /* <property-name1> '=' <property-value1> */ /* <whitespace> */ /* <module-name2> ':' */ /* <property-name2> '=' <property-value2> */ /* ... */ /* */ /* Example: */ /* */ /* FREETYPE_PROPERTIES=truetype:interpreter-version=35 \ */ /* cff:no-stem-darkening=1 \ */ /* autofitter:warping=1 */ /* */ #define FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES /*************************************************************************/ /* */ /* Uncomment the line below if you want to activate sub-pixel rendering */ /* (a.k.a. LCD rendering, or ClearType) in this build of the library. */ /* */ /* Note that this feature is covered by several Microsoft patents */ /* and should not be activated in any default build of the library. */ /* */ /* This macro has no impact on the FreeType API, only on its */ /* _implementation_. For example, using FT_RENDER_MODE_LCD when calling */ /* FT_Render_Glyph still generates a bitmap that is 3 times wider than */ /* the original size in case this macro isn't defined; however, each */ /* triplet of subpixels has R=G=B. */ /* */ /* This is done to allow FreeType clients to run unmodified, forcing */ /* them to display normal gray-level anti-aliased glyphs. */ /* */ /* #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING */ /*************************************************************************/ /* */ /* 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 integers is normally disabled when */ /* the __STDC__ macro is defined. You can however disable this by */ /* defining the macro FT_CONFIG_OPTION_FORCE_INT64 here. */ /* */ /* 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 the */ /* `configure' script on supported platforms. */ /* */ #undef FT_CONFIG_OPTION_FORCE_INT64 /*************************************************************************/ /* */ /* If this macro is defined, do not try to use an assembler version of */ /* performance-critical functions (e.g. FT_MulFix). You should only do */ /* that to verify that the assembler function works properly, or to */ /* execute benchmark tests of the various implementations. */ /* #define FT_CONFIG_OPTION_NO_ASSEMBLER */ /*************************************************************************/ /* */ /* If this macro is defined, try to use an inlined assembler version of */ /* the `FT_MulFix' function, which is a `hotspot' when loading and */ /* hinting glyphs, and which should be executed as fast as possible. */ /* */ /* Note that if your compiler or CPU is not supported, this will default */ /* to the standard and portable implementation found in `ftcalc.c'. */ /* */ #define FT_CONFIG_OPTION_INLINE_MULFIX /*************************************************************************/ /* */ /* LZW-compressed file support. */ /* */ /* FreeType now handles font files that have been compressed with the */ /* `compress' program. This is mostly used to parse many of the PCF */ /* files that come with various X11 distributions. The implementation */ /* uses NetBSD's `zopen' to partially uncompress the file on the fly */ /* (see src/lzw/ftgzip.c). */ /* */ /* Define this macro if you want to enable this `feature'. */ /* */ #define FT_CONFIG_OPTION_USE_LZW /*************************************************************************/ /* */ /* Gzip-compressed file support. */ /* */ /* FreeType now handles font files that have been compressed with the */ /* `gzip' program. This is mostly used to parse many of the PCF files */ /* that come with XFree86. The implementation uses `zlib' to */ /* partially uncompress the file on the fly (see src/gzip/ftgzip.c). */ /* */ /* Define this macro if you want to enable this `feature'. See also */ /* the macro FT_CONFIG_OPTION_SYSTEM_ZLIB below. */ /* */ #define FT_CONFIG_OPTION_USE_ZLIB /*************************************************************************/ /* */ /* ZLib library selection */ /* */ /* This macro is only used when FT_CONFIG_OPTION_USE_ZLIB is defined. */ /* It allows FreeType's `ftgzip' component to link to the system's */ /* installation of the ZLib library. This is useful on systems like */ /* Unix or VMS where it generally is already available. */ /* */ /* If you let it undefined, the component will use its own copy */ /* of the zlib sources instead. These have been modified to be */ /* included directly within the component and *not* export external */ /* function names. This allows you to link any program with FreeType */ /* _and_ ZLib without linking conflicts. */ /* */ /* Do not #undef this macro here since the build system might define */ /* it for certain configurations only. */ /* */ /* #define FT_CONFIG_OPTION_SYSTEM_ZLIB */ /*************************************************************************/ /* */ /* Bzip2-compressed file support. */ /* */ /* FreeType now handles font files that have been compressed with the */ /* `bzip2' program. This is mostly used to parse many of the PCF */ /* files that come with XFree86. The implementation uses `libbz2' to */ /* partially uncompress the file on the fly (see src/bzip2/ftbzip2.c). */ /* Contrary to gzip, bzip2 currently is not included and need to use */ /* the system available bzip2 implementation. */ /* */ /* Define this macro if you want to enable this `feature'. */ /* */ /* #define FT_CONFIG_OPTION_USE_BZIP2 */ /*************************************************************************/ /* */ /* Define to disable the use of file stream functions and types, FILE, */ /* fopen() etc. Enables the use of smaller system libraries on embedded */ /* systems that have multiple system libraries, some with or without */ /* file stream support, in the cases where file stream support is not */ /* necessary such as memory loading of font files. */ /* */ /* #define FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT */ /*************************************************************************/ /* */ /* PNG bitmap support. */ /* */ /* FreeType now handles loading color bitmap glyphs in the PNG format. */ /* This requires help from the external libpng library. Uncompressed */ /* color bitmaps do not need any external libraries and will be */ /* supported regardless of this configuration. */ /* */ /* Define this macro if you want to enable this `feature'. */ /* */ /* #define FT_CONFIG_OPTION_USE_PNG */ /*************************************************************************/ /* */ /* HarfBuzz support. */ /* */ /* FreeType uses the HarfBuzz library to improve auto-hinting of */ /* OpenType fonts. If available, many glyphs not directly addressable */ /* by a font's character map will be hinted also. */ /* */ /* Define this macro if you want to enable this `feature'. */ /* */ /* #define FT_CONFIG_OPTION_USE_HARFBUZZ */ /*************************************************************************/ /* */ /* 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. */ /* */ /* Do not #undef these macros here since the build system might define */ /* them for certain configurations only. */ /* */ /* #define FT_EXPORT(x) extern x */ /* #define FT_EXPORT_DEF(x) x */ /*************************************************************************/ /* */ /* Glyph Postscript Names handling */ /* */ /* By default, FreeType 2 is compiled with the `psnames' module. 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 synthesize 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 */ /* synthesize 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 synthesize a Unicode charmap out of the glyphs found in the */ /* fonts. */ /* */ #define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST /*************************************************************************/ /* */ /* Support for Mac fonts */ /* */ /* Define this macro if you want support for outline fonts in Mac */ /* format (mac dfont, mac resource, macbinary containing a mac */ /* resource) on non-Mac platforms. */ /* */ /* Note that the `FOND' resource isn't checked. */ /* */ #define FT_CONFIG_OPTION_MAC_FONTS /*************************************************************************/ /* */ /* Guessing methods to access embedded resource forks */ /* */ /* Enable extra Mac fonts support on non-Mac platforms (e.g. */ /* GNU/Linux). */ /* */ /* Resource forks which include fonts data are stored sometimes in */ /* locations which users or developers don't expected. In some cases, */ /* resource forks start with some offset from the head of a file. In */ /* other cases, the actual resource fork is stored in file different */ /* from what the user specifies. If this option is activated, */ /* FreeType tries to guess whether such offsets or different file */ /* names must be used. */ /* */ /* Note that normal, direct access of resource forks is controlled via */ /* the FT_CONFIG_OPTION_MAC_FONTS option. */ /* */ #ifdef FT_CONFIG_OPTION_MAC_FONTS #define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK #endif /*************************************************************************/ /* */ /* Allow the use of FT_Incremental_Interface to load typefaces that */ /* contain no glyph data, but supply it via a callback function. */ /* This is required by clients supporting document formats which */ /* supply font data incrementally as the document is parsed, such */ /* as the Ghostscript interpreter for the PostScript language. */ /* */ #define FT_CONFIG_OPTION_INCREMENTAL /*************************************************************************/ /* */ /* The size in bytes of the render pool used by the scan-line converter */ /* to do all of its work. */ /* */ #define FT_RENDER_POOL_SIZE 16384L /*************************************************************************/ /* */ /* FT_MAX_MODULES */ /* */ /* The maximum number of modules that can be registered in a single */ /* FreeType library object. 32 is the default. */ /* */ #define FT_MAX_MODULES 32 /*************************************************************************/ /* */ /* 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! */ /* */ /* Do not #undef these macros here since the build system might define */ /* them for certain configurations only. */ /* */ /* #define FT_DEBUG_LEVEL_ERROR */ /* #define FT_DEBUG_LEVEL_TRACE */ /*************************************************************************/ /* */ /* Autofitter debugging */ /* */ /* If FT_DEBUG_AUTOFIT is defined, FreeType provides some means to */ /* control the autofitter behaviour for debugging purposes with global */ /* boolean variables (consequently, you should *never* enable this */ /* while compiling in `release' mode): */ /* */ /* _af_debug_disable_horz_hints */ /* _af_debug_disable_vert_hints */ /* _af_debug_disable_blue_hints */ /* */ /* Additionally, the following functions provide dumps of various */ /* internal autofit structures to stdout (using `printf'): */ /* */ /* af_glyph_hints_dump_points */ /* af_glyph_hints_dump_segments */ /* af_glyph_hints_dump_edges */ /* af_glyph_hints_get_num_segments */ /* af_glyph_hints_get_segment_offset */ /* */ /* As an argument, they use another global variable: */ /* */ /* _af_debug_hints */ /* */ /* Please have a look at the `ftgrid' demo program to see how those */ /* variables and macros should be used. */ /* */ /* Do not #undef these macros here since the build system might define */ /* them for certain configurations only. */ /* */ /* #define FT_DEBUG_AUTOFIT */ /*************************************************************************/ /* */ /* Memory Debugging */ /* */ /* FreeType now comes with an integrated memory debugger that is */ /* capable of detecting simple errors like memory leaks or double */ /* deletes. To compile it within your build of the library, you */ /* should define FT_DEBUG_MEMORY here. */ /* */ /* Note that the memory debugger is only activated at runtime when */ /* when the _environment_ variable `FT2_DEBUG_MEMORY' is defined also! */ /* */ /* Do not #undef this macro here since the build system might define */ /* it for certain configurations only. */ /* */ /* #define FT_DEBUG_MEMORY */ /*************************************************************************/ /* */ /* Module errors */ /* */ /* If this macro is set (which is _not_ 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. */ /* */ /* Setting this macro makes sense for debugging purposes only, since */ /* it would break source compatibility of certain programs that use */ /* FreeType 2. */ /* */ /* More details can be found in the files ftmoderr.h and fterrors.h. */ /* */ #undef FT_CONFIG_OPTION_USE_MODULE_ERRORS /*************************************************************************/ /* */ /* Position Independent Code */ /* */ /* If this macro is set (which is _not_ the default), FreeType2 will */ /* avoid creating constants that require address fixups. Instead the */ /* constants will be moved into a struct and additional intialization */ /* code will be used. */ /* */ /* Setting this macro is needed for systems that prohibit address */ /* fixups, such as BREW. [Note that standard compilers like gcc or */ /* clang handle PIC generation automatically; you don't have to set */ /* FT_CONFIG_OPTION_PIC, which is only necessary for very special */ /* compilers.] */ /* */ /* Note that FT_CONFIG_OPTION_PIC support is not available for all */ /* modules (see `modules.cfg' for a complete list). For building with */ /* FT_CONFIG_OPTION_PIC support, do the following. */ /* */ /* 0. Clone the repository. */ /* 1. Define FT_CONFIG_OPTION_PIC. */ /* 2. Remove all subdirectories in `src' that don't have */ /* FT_CONFIG_OPTION_PIC support. */ /* 3. Comment out the corresponding modules in `modules.cfg'. */ /* 4. Compile. */ /* */ /* #define FT_CONFIG_OPTION_PIC */ /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** 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 */ /* `ftsnames.h'. */ /* */ #define TT_CONFIG_OPTION_SFNT_NAMES /*************************************************************************/ /* */ /* TrueType CMap support */ /* */ /* Here you can fine-tune which TrueType CMap table format shall be */ /* supported. */ #define TT_CONFIG_CMAP_FORMAT_0 #define TT_CONFIG_CMAP_FORMAT_2 #define TT_CONFIG_CMAP_FORMAT_4 #define TT_CONFIG_CMAP_FORMAT_6 #define TT_CONFIG_CMAP_FORMAT_8 #define TT_CONFIG_CMAP_FORMAT_10 #define TT_CONFIG_CMAP_FORMAT_12 #define TT_CONFIG_CMAP_FORMAT_13 #define TT_CONFIG_CMAP_FORMAT_14 /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** 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. */ /* */ /* By undefining this, you will only compile the code necessary to load */ /* TrueType glyphs without hinting. */ /* */ /* Do not #undef this macro here, since the build system might */ /* define it for certain configurations only. */ /* */ #define TT_CONFIG_OPTION_BYTECODE_INTERPRETER /*************************************************************************/ /* */ /* Define TT_CONFIG_OPTION_SUBPIXEL_HINTING if you want to compile */ /* subpixel hinting support into the TrueType driver. This modifies the */ /* TrueType hinting mechanism when anything but FT_RENDER_MODE_MONO is */ /* requested. */ /* */ /* In particular, it modifies the bytecode interpreter to interpret (or */ /* not) instructions in a certain way so that all TrueType fonts look */ /* like they do in a Windows ClearType (DirectWrite) environment. See */ /* [1] for a technical overview on what this means. See `ttinterp.h' */ /* for more details on the LEAN option. */ /* */ /* There are three possible values. */ /* */ /* Value 1: */ /* This value is associated with the `Infinality' moniker, */ /* contributed by an individual nicknamed Infinality with the goal of */ /* making TrueType fonts render better than on Windows. A high */ /* amount of configurability and flexibility, down to rules for */ /* single glyphs in fonts, but also very slow. Its experimental and */ /* slow nature and the original developer losing interest meant that */ /* this option was never enabled in default builds. */ /* */ /* The corresponding interpreter version is v38. */ /* */ /* Value 2: */ /* The new default mode for the TrueType driver. The Infinality code */ /* base was stripped to the bare minimum and all configurability */ /* removed in the name of speed and simplicity. The configurability */ /* was mainly aimed at legacy fonts like Arial, Times New Roman, or */ /* Courier. Legacy fonts are fonts that modify vertical stems to */ /* achieve clean black-and-white bitmaps. The new mode focuses on */ /* applying a minimal set of rules to all fonts indiscriminately so */ /* that modern and web fonts render well while legacy fonts render */ /* okay. */ /* */ /* The corresponding interpreter version is v40. */ /* */ /* Value 3: */ /* Compile both, making both v38 and v40 available (the latter is the */ /* default). */ /* */ /* By undefining these, you get rendering behavior like on Windows */ /* without ClearType, i.e., Windows XP without ClearType enabled and */ /* Win9x (interpreter version v35). Or not, depending on how much */ /* hinting blood and testing tears the font designer put into a given */ /* font. If you define one or both subpixel hinting options, you can */ /* switch between between v35 and the ones you define (using */ /* `FT_Property_Set'). */ /* */ /* This option requires TT_CONFIG_OPTION_BYTECODE_INTERPRETER to be */ /* defined. */ /* */ /* [1] http://www.microsoft.com/typography/cleartype/truetypecleartype.aspx */ /* */ /* #define TT_CONFIG_OPTION_SUBPIXEL_HINTING 1 */ #define TT_CONFIG_OPTION_SUBPIXEL_HINTING 2 /* #define TT_CONFIG_OPTION_SUBPIXEL_HINTING ( 1 | 2 ) */ /*************************************************************************/ /* */ /* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the */ /* TrueType glyph loader to use Apple's definition of how to handle */ /* component offsets in composite glyphs. */ /* */ /* Apple and MS disagree on the default behavior of component offsets */ /* in composites. Apple says that they should be scaled by the scaling */ /* factors in the transformation matrix (roughly, it's more complex) */ /* while MS says they should not. OpenType defines two bits in the */ /* composite flags array which can be used to disambiguate, but old */ /* fonts will not have them. */ /* */ /* http://www.microsoft.com/typography/otspec/glyf.htm */ /* https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6glyf.html */ /* */ #undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED /*************************************************************************/ /* */ /* Define TT_CONFIG_OPTION_GX_VAR_SUPPORT if you want to include */ /* support for Apple's distortable font technology (fvar, gvar, cvar, */ /* and avar tables). This has many similarities to Type 1 Multiple */ /* Masters support. */ /* */ #define TT_CONFIG_OPTION_GX_VAR_SUPPORT /*************************************************************************/ /* */ /* Define TT_CONFIG_OPTION_BDF if you want to include support for */ /* an embedded `BDF ' table within SFNT-based bitmap formats. */ /* */ #define TT_CONFIG_OPTION_BDF /*************************************************************************/ /* */ /* Option TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES controls the maximum */ /* number of bytecode instructions executed for a single run of the */ /* bytecode interpreter, needed to prevent infinite loops. You don't */ /* want to change this except for very special situations (e.g., making */ /* a library fuzzer spend less time to handle broken fonts). */ /* */ /* It is not expected that this value is ever modified by a configuring */ /* script; instead, it gets surrounded with #ifndef ... #endif so that */ /* the value can be set as a preprocessor option on the compiler's */ /* command line. */ /* */ #ifndef TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES #define TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES 1000000L #endif /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** 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 maximum 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 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 /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** C F F D R I V E R C O N F I G U R A T I O N ****/ /**** ****/ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /* */ /* Using CFF_CONFIG_OPTION_DARKENING_PARAMETER_{X,Y}{1,2,3,4} it is */ /* possible to set up the default values of the four control points that */ /* define the stem darkening behaviour of the (new) CFF engine. For */ /* more details please read the documentation of the */ /* `darkening-parameters' property of the cff driver module (file */ /* `ftcffdrv.h'), which allows the control at run-time. */ /* */ /* Do *not* undefine these macros! */ /* */ #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1 500 #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y1 400 #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 1000 #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y2 275 #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 1667 #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y3 275 #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_X4 2333 #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y4 0 /*************************************************************************/ /* */ /* CFF_CONFIG_OPTION_OLD_ENGINE controls whether the pre-Adobe CFF */ /* engine gets compiled into FreeType. If defined, it is possible to */ /* switch between the two engines using the `hinting-engine' property of */ /* the cff driver module. */ /* */ /* #define CFF_CONFIG_OPTION_OLD_ENGINE */ /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** P C F D R I V E R C O N F I G U R A T I O N ****/ /**** ****/ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /* */ /* There are many PCF fonts just called `Fixed' which look completely */ /* different, and which have nothing to do with each other. When */ /* selecting `Fixed' in KDE or Gnome one gets results that appear rather */ /* random, the style changes often if one changes the size and one */ /* cannot select some fonts at all. This option makes the PCF module */ /* prepend the foundry name (plus a space) to the family name. */ /* */ /* We also check whether we have `wide' characters; all put together, we */ /* get family names like `Sony Fixed' or `Misc Fixed Wide'. */ /* */ /* If this option is activated, it can be controlled with the */ /* `no-long-family-names' property of the pcf driver module. */ /* */ /* #define PCF_CONFIG_OPTION_LONG_FAMILY_NAMES */ /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** A U T O F I T M O D U L E C O N F I G U R A T I O N ****/ /**** ****/ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /* */ /* Compile autofit module with CJK (Chinese, Japanese, Korean) script */ /* support. */ /* */ #define AF_CONFIG_OPTION_CJK /*************************************************************************/ /* */ /* Compile autofit module with fallback Indic script support, covering */ /* some scripts that the `latin' submodule of the autofit module doesn't */ /* (yet) handle. */ /* */ #define AF_CONFIG_OPTION_INDIC /*************************************************************************/ /* */ /* Compile autofit module with warp hinting. The idea of the warping */ /* code is to slightly scale and shift a glyph within a single dimension */ /* so that as much of its segments are aligned (more or less) on the */ /* grid. To find out the optimal scaling and shifting value, various */ /* parameter combinations are tried and scored. */ /* */ /* This experimental option is active only if the rendering mode is */ /* FT_RENDER_MODE_LIGHT; you can switch warping on and off with the */ /* `warping' property of the auto-hinter (see file `ftautoh.h' for more */ /* information; by default it is switched off). */ /* */ #define AF_CONFIG_OPTION_USE_WARPER /*************************************************************************/ /* */ /* Use TrueType-like size metrics for `light' auto-hinting. */ /* */ /* It is strongly recommended to avoid this option, which exists only to */ /* help some legacy applications retain its appearance and behaviour */ /* with respect to auto-hinted TrueType fonts. */ /* */ /* The very reason this option exists at all are GNU/Linux distributions */ /* like Fedora that did not un-patch the following change (which was */ /* present in FreeType between versions 2.4.6 and 2.7.1, inclusive). */ /* */ /* 2011-07-16 Steven Chu <steven.f.chu@gmail.com> */ /* */ /* [truetype] Fix metrics on size request for scalable fonts. */ /* */ /* This problematic commit is now reverted (more or less). */ /* */ /* #define AF_CONFIG_OPTION_TT_SIZE_METRICS */ /* */ /* * This macro is obsolete. Support has been removed in FreeType * version 2.5. */ #define FT_CONFIG_OPTION_OLD_INTERNALS /* * This macro is defined if native TrueType hinting is requested by the * definitions above. */ #ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER #define TT_USE_BYTECODE_INTERPRETER #ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING #if TT_CONFIG_OPTION_SUBPIXEL_HINTING & 1 #define TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY #endif #if TT_CONFIG_OPTION_SUBPIXEL_HINTING & 2 #define TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL #endif #endif #endif /* * Check CFF darkening parameters. The checks are the same as in function * `cff_property_set' in file `cffdrivr.c'. */ #if CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1 < 0 || \ CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 < 0 || \ CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 < 0 || \ CFF_CONFIG_OPTION_DARKENING_PARAMETER_X4 < 0 || \ \ CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y1 < 0 || \ CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y2 < 0 || \ CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y3 < 0 || \ CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y4 < 0 || \ \ CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1 > \ CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 || \ CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 > \ CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 || \ CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 > \ CFF_CONFIG_OPTION_DARKENING_PARAMETER_X4 || \ \ CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y1 > 500 || \ CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y2 > 500 || \ CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y3 > 500 || \ CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y4 > 500 #error "Invalid CFF darkening parameters!" #endif FT_END_HEADER #endif /* FTOPTION_H_ */ /* END */
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