| /***************************************************************************/ |
| /* */ |
| /* ftoption.h (for development) */ |
| /* */ |
| /* User-selectable configuration macros (specification only). */ |
| /* */ |
| /* Copyright 1996-2015 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 `$BUILD/config/ftoption.h', where `$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 `$BUILD/ft2build.h' and modify it */ |
| /* slightly to pre-define the macro FT_CONFIG_OPTIONS_H used to */ |
| /* locate this file during the build. For example, */ |
| /* */ |
| /* #define FT_CONFIG_OPTIONS_H <myftoptions.h> */ |
| /* #include <config/ftheader.h> */ |
| /* */ |
| /* will use `$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 <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 ****/ |
| /**** ****/ |
| /*************************************************************************/ |
| /*************************************************************************/ |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* 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 |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* 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 |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* 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 */ |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* 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. */ |
| /* */ |
| /* #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 */ |
| /* EXPERIMENTAL subpixel hinting support into the TrueType driver. This */ |
| /* replaces the native TrueType hinting mechanism when anything but */ |
| /* FT_RENDER_MODE_MONO is requested. */ |
| /* */ |
| /* Enabling this causes the TrueType driver to ignore instructions under */ |
| /* certain conditions. This is done in accordance with the guide here, */ |
| /* with some minor differences: */ |
| /* */ |
| /* http://www.microsoft.com/typography/cleartype/truetypecleartype.aspx */ |
| /* */ |
| /* By undefining this, you only compile the code necessary to hint */ |
| /* TrueType glyphs with native TT hinting. */ |
| /* */ |
| /* This option requires TT_CONFIG_OPTION_BYTECODE_INTERPRETER to be */ |
| /* defined. */ |
| /* */ |
| #define TT_CONFIG_OPTION_SUBPIXEL_HINTING |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* If you define TT_CONFIG_OPTION_UNPATENTED_HINTING, a special version */ |
| /* of the TrueType bytecode interpreter is used that doesn't implement */ |
| /* any of the patented opcodes and algorithms. The patents related to */ |
| /* TrueType hinting have expired worldwide since May 2010; this option */ |
| /* is now deprecated. */ |
| /* */ |
| /* Note that the TT_CONFIG_OPTION_UNPATENTED_HINTING macro is *ignored* */ |
| /* if you define TT_CONFIG_OPTION_BYTECODE_INTERPRETER; in other words, */ |
| /* either define TT_CONFIG_OPTION_BYTECODE_INTERPRETER or */ |
| /* TT_CONFIG_OPTION_UNPATENTED_HINTING but not both at the same time. */ |
| /* */ |
| /* This macro is only useful for a small number of font files (mostly */ |
| /* for Asian scripts) that require bytecode interpretation to properly */ |
| /* load glyphs. For all other fonts, this produces unpleasant results, */ |
| /* thus the unpatented interpreter is never used to load glyphs from */ |
| /* TrueType fonts unless one of the following two options is used. */ |
| /* */ |
| /* - The unpatented interpreter is explicitly activated by the user */ |
| /* through the FT_PARAM_TAG_UNPATENTED_HINTING parameter tag */ |
| /* when opening the FT_Face. */ |
| /* */ |
| /* - FreeType detects that the FT_Face corresponds to one of the */ |
| /* `trick' fonts (e.g., `Mingliu') it knows about. The font engine */ |
| /* contains a hard-coded list of font names and other matching */ |
| /* parameters (see function `tt_face_init' in file */ |
| /* `src/truetype/ttobjs.c'). */ |
| /* */ |
| /* Here a sample code snippet for using FT_PARAM_TAG_UNPATENTED_HINTING. */ |
| /* */ |
| /* { */ |
| /* FT_Parameter parameter; */ |
| /* FT_Open_Args open_args; */ |
| /* */ |
| /* */ |
| /* parameter.tag = FT_PARAM_TAG_UNPATENTED_HINTING; */ |
| /* */ |
| /* open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS; */ |
| /* open_args.pathname = my_font_pathname; */ |
| /* open_args.num_params = 1; */ |
| /* open_args.params = ¶meter; */ |
| /* */ |
| /* error = FT_Open_Face( library, &open_args, index, &face ); */ |
| /* ... */ |
| /* } */ |
| /* */ |
| /* #define TT_CONFIG_OPTION_UNPATENTED_HINTING */ |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* 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 |
| |
| |
| /*************************************************************************/ |
| /*************************************************************************/ |
| /**** ****/ |
| /**** 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 |
| |
| |
| /*************************************************************************/ |
| /*************************************************************************/ |
| /**** ****/ |
| /**** 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 either unpatented or native TrueType |
| * hinting is requested by the definitions above. |
| */ |
| #ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER |
| #define TT_USE_BYTECODE_INTERPRETER |
| #undef TT_CONFIG_OPTION_UNPATENTED_HINTING |
| #elif defined TT_CONFIG_OPTION_UNPATENTED_HINTING |
| #define TT_USE_BYTECODE_INTERPRETER |
| #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 */ |
