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File Name : ftoption.h

/****************************************************************************
 *
 * ftoption.h
 *
 *   User-selectable configuration macros (specification only).
 *
 * Copyright (C) 1996-2024 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`).
   *
   *   This option needs a C99 compiler.
   */
/* #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 Postscript names of glyphs in a TrueType or OpenType
   * file.
   *
   * Note that if you do not compile the 'psnames' module by undefining the
   * above `FT_CONFIG_OPTION_POSTSCRIPT_NAMES` macro, the 'sfnt' module will
   * contain additional code to read the PostScript name 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 this option.
   *
   * The new default 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.
   * The so-called Infinality mode (v38) is no longer available in FreeType.
   *
   * 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 */

/**************************************************************************
   *
   * 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_NO_BORING_EXPANSION` if you want to exclude
   * support for 'boring' OpenType specification expansions.
   *
   *   https://github.com/harfbuzz/boring-expansion-spec
   *
   * Right now, the following features are covered:
   *
   *   - 'avar' version 2.0
   *
   * Most likely, this is a temporary configuration option to be removed in
   * the near future, since it is assumed that eventually those features are
   * added to the OpenType standard.
   */
/* #define TT_CONFIG_OPTION_NO_BORING_EXPANSION */

/**************************************************************************
   *
   * 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

/**************************************************************************
   *
   * Option `TT_CONFIG_OPTION_GPOS_KERNING` enables a basic GPOS kerning
   * implementation (for TrueType fonts only).  With this defined, FreeType
   * is able to get kerning pair data from the GPOS 'kern' feature as well as
   * legacy 'kern' tables; without this defined, FreeType will only be able
   * to use legacy 'kern' tables.
   *
   * Note that FreeType does not support more advanced GPOS layout features;
   * even the 'kern' feature implemented here doesn't handle more
   * sophisticated kerning variants.  Use a higher-level library like
   * HarfBuzz instead for that.
   */
/* #define TT_CONFIG_OPTION_GPOS_KERNING */

/*************************************************************************/
  /*************************************************************************/
  /****                                                                 ****/
  /****      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 two 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
#define  TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL
#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 */

System Information
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Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	0/0	0755	2025-04-07 09:53:31
..	dir	-	0/0	0755	2025-04-07 09:53:31
ftconfig.h	text/x-c	1.57 KB	0/0	0644	2025-03-01 02:15:45
ftheader.h	text/x-c	23.36 KB	0/0	0644	2024-07-18 09:14:58
ftmodule.h	text/plain	1.41 KB	0/0	0644	2024-07-18 09:14:58
ftoption.h	text/x-c	39.38 KB	0/0	0644	2025-03-01 02:15:45
ftstdlib.h	text/x-c	4.47 KB	0/0	0644	2024-07-18 09:14:58
integer-types.h	text/x-c	6.91 KB	0/0	0644	2024-07-18 09:14:58
mac-support.h	text/x-c	1.56 KB	0/0	0644	2024-07-18 09:14:58
public-macros.h	text/x-c	4.11 KB	0/0	0644	2024-07-18 09:14:58