| /**************************************************************************** |
| * |
| * ftoption.h (for development) |
| * |
| * User-selectable configuration macros (specification only). |
| * |
| * Copyright (C) 1996-2022 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 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 @properties. |
| * |
| * You have to undefine this configuration option on platforms that lack |
| * the concept of environment variables (and thus don't have the `getenv` |
| * function), for example Windows CE. |
| * |
| * `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 |
| * ``` |
| * |
| */ |
| #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. |
| * |
| * When this macro is not defined, FreeType offers alternative LCD |
| * rendering technology that produces excellent output. |
| */ |
| /* #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. |
| * |
| * If you use a build system like cmake or the `configure` script, |
| * options set by those programs have precedence, overwriting the value |
| * here with the configured one. |
| * |
| * If you use the GNU make build system directly (that is, without the |
| * `configure` script) and you define this macro, you also have to pass |
| * `SYSTEM_ZLIB=yes` as an argument to make. |
| */ |
| /* #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'. |
| * |
| * If you use a build system like cmake or the `configure` script, |
| * options set by those programs have precedence, overwriting the value |
| * here with the configured one. |
| */ |
| #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'. |
| * |
| * If you use a build system like cmake or the `configure` script, |
| * options set by those programs have precedence, overwriting the value |
| * here with the configured one. |
| */ |
| #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'. |
| * |
| * If you use a build system like cmake or the `configure` script, |
| * options set by those programs have precedence, overwriting the value |
| * here with the configured one. |
| */ |
| #define FT_CONFIG_OPTION_USE_HARFBUZZ |
| |
| |
| /************************************************************************** |
| * |
| * Brotli support. |
| * |
| * FreeType uses the Brotli library to provide support for decompressing |
| * WOFF2 streams. |
| * |
| * Define this macro if you want to enable this 'feature'. |
| * |
| * If you use a build system like cmake or the `configure` script, |
| * options set by those programs have precedence, overwriting the value |
| * here with the configured one. |
| */ |
| #define FT_CONFIG_OPTION_USE_BROTLI |
| |
| |
| /************************************************************************** |
| * |
| * 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 |
| |
| |
| /************************************************************************** |
| * |
| * Logging |
| * |
| * Compiling FreeType in debug or trace mode makes FreeType write error |
| * and trace log messages to `stderr`. Enabling this macro |
| * automatically forces the `FT_DEBUG_LEVEL_ERROR` and |
| * `FT_DEBUG_LEVEL_TRACE` macros and allows FreeType to write error and |
| * trace log messages to a file instead of `stderr`. For writing logs |
| * to a file, FreeType uses an the external `dlg` library (the source |
| * code is in `src/dlg`). |
| */ |
| #define FT_DEBUG_LOGGING |
| |
| |
| /************************************************************************** |
| * |
| * 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 |
| |
| |
| /************************************************************************** |
| * |
| * OpenType SVG Glyph Support |
| * |
| * Setting this macro enables support for OpenType SVG glyphs. By |
| * default, FreeType can only fetch SVG documents. However, it can also |
| * render them if external rendering hook functions are plugged in at |
| * runtime. |
| * |
| * More details on the hooks can be found in file `otsvg.h`. |
| */ |
| #define FT_CONFIG_OPTION_SVG |
| |
| |
| /************************************************************************** |
| * |
| * Error Strings |
| * |
| * If this macro is set, `FT_Error_String` will return meaningful |
| * descriptions. This is not enabled by default to reduce the overall |
| * size of FreeType. |
| * |
| * More details can be found in the file `fterrors.h`. |
| */ |
| /* #define FT_CONFIG_OPTION_ERROR_STRINGS */ |
| |
| |
| /*************************************************************************/ |
| /*************************************************************************/ |
| /**** ****/ |
| /**** 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 colored |
| * 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 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] |
| * 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). Tagged 'Font Variations', this is now part of OpenType |
| * also. 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' (covering the CNS 11643 character |
| * set) needs 256. |
| */ |
| #define T1_MAX_CHARSTRINGS_OPERANDS 256 |
| |
| |
| /************************************************************************** |
| * |
| * Define this configuration macro if you want to prevent the compilation |
| * of the 't1afm' module, which is in charge of reading Type~1 AFM files |
| * into an existing face. Note that if set, the Type~1 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 (file `ftdriver.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. Currently, this needs option `AF_CONFIG_OPTION_CJK`. |
| */ |
| #ifdef AF_CONFIG_OPTION_CJK |
| #define AF_CONFIG_OPTION_INDIC |
| #endif |
| |
| |
| /************************************************************************** |
| * |
| * 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 */ |
| |
| |
| /* |
| * The next three macros are defined if native TrueType hinting is |
| * requested by the definitions above. Don't change this. |
| */ |
| #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 |
| |
| |
| /* |
| * The TT_SUPPORT_COLRV1 macro is defined to indicate to clients that this |
| * version of FreeType has support for 'COLR' v1 API. This definition is |
| * useful to FreeType clients that want to build in support for 'COLR' v1 |
| * depending on a tip-of-tree checkout before it is officially released in |
| * FreeType, and while the feature cannot yet be tested against using |
| * version macros. Don't change this macro. This may be removed once the |
| * feature is in a FreeType release version and version macros can be used |
| * to test for availability. |
| */ |
| #ifdef TT_CONFIG_OPTION_COLOR_LAYERS |
| #define TT_SUPPORT_COLRV1 |
| #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 */ |
