ref: 8f09eb5ce0260aa17f93b2ccefb4bae347ca79fc
dir: /devel/ftoption.h/
/**************************************************************************** * * ftoption.h (for development) * * User-selectable configuration macros (specification only). * * Copyright 1996-2018 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 LCD rendering * technology similar to ClearType in this build of the library. This * technology triples the resolution in the direction color subpixels. * To mitigate color fringes inherent to this technology, you also need * to explicitly set up LCD filtering. * * Note that this feature is covered by several Microsoft patents * and should not be activated in any default build of the library. * When this macro is not defined, FreeType offers alternative LCD * rendering technology that produces excellent output without LCD * filtering. */ /* #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 /************************************************************************** * * 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, but will not synthesize a missing Unicode charmap. * * - 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 /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** 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_COLOR_LAYERS if you want to support coloured * outlines (from the COLR/CPAL tables) in all formats using the SFNT * module (namely TrueType & OpenType). */ #define TT_CONFIG_OPTION_COLOR_LAYERS /************************************************************************** * * 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 options. * * 1. This option 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. * * 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. * * 3. Compile both. * * 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. * * This option requires TT_CONFIG_OPTION_BYTECODE_INTERPRETER to be * defined. * * [1] https://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. * * https://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 /************************************************************************** * * T1_CONFIG_OPTION_OLD_ENGINE controls whether the pre-Adobe Type 1 * engine gets compiled into FreeType. If defined, it is possible to * switch between the two engines using the `hinting-engine' property of * the type1 driver module. */ #define T1_CONFIG_OPTION_OLD_ENGINE /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** 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 Indic script support. */ #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 /* */ /* * 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 */