ref: c485bece6b6e90859a8efc50e32b6dc17b40ee0c
dir: /devel/ftoption.h/
/****************************************************************************
*
* ftoption.h (for development)
*
* User-selectable configuration macros (specification only).
*
* Copyright 1996-2018 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTOPTION_H_
#define FTOPTION_H_
#include <ft2build.h>
FT_BEGIN_HEADER
/**************************************************************************
*
* USER-SELECTABLE CONFIGURATION MACROS
*
* This file contains the default configuration macro definitions for
* a standard build of the FreeType library. There are three ways to
* use this file to build project-specific versions of the library:
*
* - You can modify this file by hand, but this is not recommended in
* cases where you would like to build several versions of the
* library from a single source directory.
*
* - You can put a copy of this file in your build directory, more
* precisely in `$BUILD/freetype/config/ftoption.h', where `$BUILD'
* is the name of a directory that is included _before_ the FreeType
* include path during compilation.
*
* The default FreeType Makefiles and Jamfiles use the build
* directory `builds/<system>' by default, but you can easily change
* that for your own projects.
*
* - Copy the file <ft2build.h> to `$BUILD/ft2build.h' and modify it
* slightly to pre-define the macro FT_CONFIG_OPTIONS_H used to
* locate this file during the build. For example,
*
* {
* #define FT_CONFIG_OPTIONS_H <myftoptions.h>
* #include <freetype/config/ftheader.h>
* }
*
* will use `$BUILD/myftoptions.h' instead of this file for macro
* definitions.
*
* Note also that you can similarly pre-define the macro
* FT_CONFIG_MODULES_H used to locate the file listing of the modules
* that are statically linked to the library at compile time. By
* default, this file is <freetype/config/ftmodule.h>.
*
* We highly recommend using the third method whenever possible.
*
*/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** G E N E R A L F R E E T Y P E 2 C O N F I G U R A T I O N ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*#************************************************************************
*
* If you enable this configuration option, FreeType recognizes an
* environment variable called `FREETYPE_PROPERTIES', which can be used to
* control the various font drivers and modules. The controllable
* properties are listed in the section @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 \
* autofitter:warping=1
* }
*
*/
#define FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES
/**************************************************************************
*
* Uncomment the line below if you want to activate LCD rendering
* technology similar to ClearType in this build of the library. This
* technology triples the resolution in the direction color subpixels.
* To mitigate color fringes inherent to this technology, you also need
* to explicitly set up LCD filtering.
*
* Note that this feature is covered by several Microsoft patents
* and should not be activated in any default build of the library.
* When this macro is not defined, FreeType offers alternative LCD
* rendering technology that produces excellent output without LCD
* filtering.
*/
/* #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING */
/**************************************************************************
*
* Many compilers provide a non-ANSI 64-bit data type that can be used
* by FreeType to speed up some computations. However, this will create
* some problems when compiling the library in strict ANSI mode.
*
* For this reason, the use of 64-bit integers is normally disabled when
* the __STDC__ macro is defined. You can however disable this by
* defining the macro FT_CONFIG_OPTION_FORCE_INT64 here.
*
* For most compilers, this will only create compilation warnings when
* building the library.
*
* ObNote: The compiler-specific 64-bit integers are detected in the
* file `ftconfig.h' either statically or through the
* `configure' script on supported platforms.
*/
#undef FT_CONFIG_OPTION_FORCE_INT64
/**************************************************************************
*
* If this macro is defined, do not try to use an assembler version of
* performance-critical functions (e.g. FT_MulFix). You should only do
* that to verify that the assembler function works properly, or to
* execute benchmark tests of the various implementations.
*/
/* #define FT_CONFIG_OPTION_NO_ASSEMBLER */
/**************************************************************************
*
* If this macro is defined, try to use an inlined assembler version of
* the `FT_MulFix' function, which is a `hotspot' when loading and
* hinting glyphs, and which should be executed as fast as possible.
*
* Note that if your compiler or CPU is not supported, this will default
* to the standard and portable implementation found in `ftcalc.c'.
*/
#define FT_CONFIG_OPTION_INLINE_MULFIX
/**************************************************************************
*
* LZW-compressed file support.
*
* FreeType now handles font files that have been compressed with the
* `compress' program. This is mostly used to parse many of the PCF
* files that come with various X11 distributions. The implementation
* uses NetBSD's `zopen' to partially uncompress the file on the fly
* (see src/lzw/ftgzip.c).
*
* Define this macro if you want to enable this `feature'.
*/
#define FT_CONFIG_OPTION_USE_LZW
/**************************************************************************
*
* Gzip-compressed file support.
*
* FreeType now handles font files that have been compressed with the
* `gzip' program. This is mostly used to parse many of the PCF files
* that come with XFree86. The implementation uses `zlib' to
* partially uncompress the file on the fly (see src/gzip/ftgzip.c).
*
* Define this macro if you want to enable this `feature'. See also
* the macro FT_CONFIG_OPTION_SYSTEM_ZLIB below.
*/
#define FT_CONFIG_OPTION_USE_ZLIB
/**************************************************************************
*
* ZLib library selection
*
* This macro is only used when FT_CONFIG_OPTION_USE_ZLIB is defined.
* It allows FreeType's `ftgzip' component to link to the system's
* installation of the ZLib library. This is useful on systems like
* Unix or VMS where it generally is already available.
*
* If you let it undefined, the component will use its own copy
* of the zlib sources instead. These have been modified to be
* included directly within the component and *not* export external
* function names. This allows you to link any program with FreeType
* _and_ ZLib without linking conflicts.
*
* Do not #undef this macro here since the build system might define
* it for certain configurations only.
*
* 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_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
/**************************************************************************
*
* Glyph Postscript Names handling
*
* By default, FreeType 2 is compiled with the `psnames' module. This
* module is in charge of converting a glyph name string into a
* Unicode value, or return a Macintosh standard glyph name for the
* use with the TrueType `post' table.
*
* Undefine this macro if you do not want `psnames' compiled in your
* build of FreeType. This has the following effects:
*
* - The TrueType driver will provide its own set of glyph names,
* if you build it to support postscript names in the TrueType
* `post' table, but will not synthesize a missing Unicode charmap.
*
* - The Type 1 driver will not be able to synthesize a Unicode
* charmap out of the glyphs found in the fonts.
*
* You would normally undefine this configuration macro when building
* a version of FreeType that doesn't contain a Type 1 or CFF driver.
*/
#define FT_CONFIG_OPTION_POSTSCRIPT_NAMES
/**************************************************************************
*
* Postscript Names to Unicode Values support
*
* By default, FreeType 2 is built with the `PSNames' module compiled
* in. Among other things, the module is used to convert a glyph name
* into a Unicode value. This is especially useful in order to
* synthesize on the fly a Unicode charmap from the CFF/Type 1 driver
* through a big table named the `Adobe Glyph List' (AGL).
*
* Undefine this macro if you do not want the Adobe Glyph List
* compiled in your `PSNames' module. The Type 1 driver will not be
* able to synthesize a Unicode charmap out of the glyphs found in the
* fonts.
*/
#define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST
/**************************************************************************
*
* Support for Mac fonts
*
* Define this macro if you want support for outline fonts in Mac
* format (mac dfont, mac resource, macbinary containing a mac
* resource) on non-Mac platforms.
*
* Note that the `FOND' resource isn't checked.
*/
#define FT_CONFIG_OPTION_MAC_FONTS
/**************************************************************************
*
* Guessing methods to access embedded resource forks
*
* Enable extra Mac fonts support on non-Mac platforms (e.g., GNU/Linux).
*
* Resource forks which include fonts data are stored sometimes in
* locations which users or developers don't expected. In some cases,
* resource forks start with some offset from the head of a file. In
* other cases, the actual resource fork is stored in file different
* from what the user specifies. If this option is activated,
* FreeType tries to guess whether such offsets or different file
* names must be used.
*
* Note that normal, direct access of resource forks is controlled via
* the FT_CONFIG_OPTION_MAC_FONTS option.
*/
#ifdef FT_CONFIG_OPTION_MAC_FONTS
#define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
#endif
/**************************************************************************
*
* Allow the use of FT_Incremental_Interface to load typefaces that
* contain no glyph data, but supply it via a callback function.
* This is required by clients supporting document formats which
* supply font data incrementally as the document is parsed, such
* as the Ghostscript interpreter for the PostScript language.
*/
#define FT_CONFIG_OPTION_INCREMENTAL
/**************************************************************************
*
* The size in bytes of the render pool used by the scan-line converter
* to do all of its work.
*/
#define FT_RENDER_POOL_SIZE 16384L
/**************************************************************************
*
* FT_MAX_MODULES
*
* The maximum number of modules that can be registered in a single
* FreeType library object. 32 is the default.
*/
#define FT_MAX_MODULES 32
/**************************************************************************
*
* Debug level
*
* FreeType can be compiled in debug or trace mode. In debug mode,
* errors are reported through the `ftdebug' component. In trace
* mode, additional messages are sent to the standard output during
* execution.
*
* Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode.
* Define FT_DEBUG_LEVEL_TRACE to build it in trace mode.
*
* Don't define any of these macros to compile in `release' mode!
*
* Do not #undef these macros here since the build system might define
* them for certain configurations only.
*/
#define FT_DEBUG_LEVEL_ERROR
#define FT_DEBUG_LEVEL_TRACE
/**************************************************************************
*
* Autofitter debugging
*
* If FT_DEBUG_AUTOFIT is defined, FreeType provides some means to
* control the autofitter behaviour for debugging purposes with global
* boolean variables (consequently, you should *never* enable this
* while compiling in `release' mode):
*
* {
* _af_debug_disable_horz_hints
* _af_debug_disable_vert_hints
* _af_debug_disable_blue_hints
* }
*
* Additionally, the following functions provide dumps of various
* internal autofit structures to stdout (using `printf'):
*
* {
* af_glyph_hints_dump_points
* af_glyph_hints_dump_segments
* af_glyph_hints_dump_edges
* af_glyph_hints_get_num_segments
* af_glyph_hints_get_segment_offset
* }
*
* As an argument, they use another global variable:
*
* {
* _af_debug_hints
* }
*
* Please have a look at the `ftgrid' demo program to see how those
* variables and macros should be used.
*
* Do not #undef these macros here since the build system might define
* them for certain configurations only.
*/
#define FT_DEBUG_AUTOFIT
/**************************************************************************
*
* Memory Debugging
*
* FreeType now comes with an integrated memory debugger that is
* capable of detecting simple errors like memory leaks or double
* deletes. To compile it within your build of the library, you
* should define FT_DEBUG_MEMORY here.
*
* Note that the memory debugger is only activated at runtime when
* when the _environment_ variable `FT2_DEBUG_MEMORY' is defined also!
*
* Do not #undef this macro here since the build system might define
* it for certain configurations only.
*/
#define FT_DEBUG_MEMORY
/**************************************************************************
*
* Module errors
*
* If this macro is set (which is _not_ the default), the higher byte
* of an error code gives the module in which the error has occurred,
* while the lower byte is the real error code.
*
* Setting this macro makes sense for debugging purposes only, since
* it would break source compatibility of certain programs that use
* FreeType 2.
*
* More details can be found in the files ftmoderr.h and fterrors.h.
*/
#undef FT_CONFIG_OPTION_USE_MODULE_ERRORS
/**************************************************************************
*
* 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 coloured
* outlines (from the COLR/CPAL tables) in all formats using the SFNT
* module (namely TrueType & OpenType).
*/
#define TT_CONFIG_OPTION_COLOR_LAYERS
/**************************************************************************
*
* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to
* load and enumerate the glyph Postscript names in a TrueType or
* OpenType file.
*
* Note that when you do not compile the `PSNames' module by undefining
* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will
* contain additional code used to read the PS Names table from a font.
*
* (By default, the module uses `PSNames' to extract glyph names.)
*/
#define TT_CONFIG_OPTION_POSTSCRIPT_NAMES
/**************************************************************************
*
* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to
* access the internal name table in a SFNT-based format like TrueType
* or OpenType. The name table contains various strings used to
* describe the font, like family name, copyright, version, etc. It
* does not contain any glyph name though.
*
* Accessing SFNT names is done through the functions declared in
* `ftsnames.h'.
*/
#define TT_CONFIG_OPTION_SFNT_NAMES
/**************************************************************************
*
* TrueType CMap support
*
* Here you can fine-tune which TrueType CMap table format shall be
* supported.
*/
#define TT_CONFIG_CMAP_FORMAT_0
#define TT_CONFIG_CMAP_FORMAT_2
#define TT_CONFIG_CMAP_FORMAT_4
#define TT_CONFIG_CMAP_FORMAT_6
#define TT_CONFIG_CMAP_FORMAT_8
#define TT_CONFIG_CMAP_FORMAT_10
#define TT_CONFIG_CMAP_FORMAT_12
#define TT_CONFIG_CMAP_FORMAT_13
#define TT_CONFIG_CMAP_FORMAT_14
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** T R U E T Y P E D R I V E R C O N F I G U R A T I O N ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile
* a bytecode interpreter in the TrueType driver.
*
* By undefining this, you will only compile the code necessary to load
* TrueType glyphs without hinting.
*
* Do not #undef this macro here, since the build system might
* define it for certain configurations only.
*/
#define TT_CONFIG_OPTION_BYTECODE_INTERPRETER
/**************************************************************************
*
* Define TT_CONFIG_OPTION_SUBPIXEL_HINTING if you want to compile
* subpixel hinting support into the TrueType driver. This modifies the
* TrueType hinting mechanism when anything but FT_RENDER_MODE_MONO is
* requested.
*
* In particular, it modifies the bytecode interpreter to interpret (or
* not) instructions in a certain way so that all TrueType fonts look
* like they do in a Windows ClearType (DirectWrite) environment. See
* [1] for a technical overview on what this means. See `ttinterp.h'
* for more details on the LEAN option.
*
* There are three 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). This has many similarities to Type 1 Multiple
* Masters support.
*/
#define TT_CONFIG_OPTION_GX_VAR_SUPPORT
/**************************************************************************
*
* Define TT_CONFIG_OPTION_BDF if you want to include support for
* an embedded `BDF ' table within SFNT-based bitmap formats.
*/
#define TT_CONFIG_OPTION_BDF
/**************************************************************************
*
* Option TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES controls the maximum
* number of bytecode instructions executed for a single run of the
* bytecode interpreter, needed to prevent infinite loops. You don't
* want to change this except for very special situations (e.g., making
* a library fuzzer spend less time to handle broken fonts).
*
* It is not expected that this value is ever modified by a configuring
* script; instead, it gets surrounded with #ifndef ... #endif so that
* the value can be set as a preprocessor option on the compiler's
* command line.
*/
#ifndef TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES
#define TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES 1000000L
#endif
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** T Y P E 1 D R I V E R C O N F I G U R A T I O N ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* T1_MAX_DICT_DEPTH is the maximum depth of nest dictionaries and
* arrays in the Type 1 stream (see t1load.c). A minimum of 4 is
* required.
*/
#define T1_MAX_DICT_DEPTH 5
/**************************************************************************
*
* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine
* calls during glyph loading.
*/
#define T1_MAX_SUBRS_CALLS 16
/**************************************************************************
*
* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A
* minimum of 16 is required.
*
* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256.
*/
#define T1_MAX_CHARSTRINGS_OPERANDS 256
/**************************************************************************
*
* Define this configuration macro if you want to prevent the
* compilation of `t1afm', which is in charge of reading Type 1 AFM
* files into an existing face. Note that if set, the T1 driver will be
* unable to produce kerning distances.
*/
#undef T1_CONFIG_OPTION_NO_AFM
/**************************************************************************
*
* Define this configuration macro if you want to prevent the
* compilation of the Multiple Masters font support in the Type 1
* driver.
*/
#undef T1_CONFIG_OPTION_NO_MM_SUPPORT
/**************************************************************************
*
* T1_CONFIG_OPTION_OLD_ENGINE controls whether the pre-Adobe Type 1
* engine gets compiled into FreeType. If defined, it is possible to
* switch between the two engines using the `hinting-engine' property of
* the type1 driver module.
*/
#define T1_CONFIG_OPTION_OLD_ENGINE
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** C F F D R I V E R C O N F I G U R A T I O N ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* Using CFF_CONFIG_OPTION_DARKENING_PARAMETER_{X,Y}{1,2,3,4} it is
* possible to set up the default values of the four control points that
* define the stem darkening behaviour of the (new) CFF engine. For
* more details please read the documentation of the
* `darkening-parameters' property (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.
*/
#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 `ftdriver.h' for more
* information; by default it is switched off).
*/
#define AF_CONFIG_OPTION_USE_WARPER
/**************************************************************************
*
* Use TrueType-like size metrics for `light' auto-hinting.
*
* It is strongly recommended to avoid this option, which exists only to
* help some legacy applications retain its appearance and behaviour
* with respect to auto-hinted TrueType fonts.
*
* The very reason this option exists at all are GNU/Linux distributions
* like Fedora that did not un-patch the following change (which was
* present in FreeType between versions 2.4.6 and 2.7.1, inclusive).
*
* {
* 2011-07-16 Steven Chu <[email protected]>
*
* [truetype] Fix metrics on size request for scalable fonts.
* }
*
* This problematic commit is now reverted (more or less).
*/
/* #define AF_CONFIG_OPTION_TT_SIZE_METRICS */
/* */
/*
* This macro is obsolete. Support has been removed in FreeType
* version 2.5.
*/
/* #define FT_CONFIG_OPTION_OLD_INTERNALS */
/*
* This macro is defined if native TrueType hinting is requested by the
* definitions above.
*/
#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
#define TT_USE_BYTECODE_INTERPRETER
#ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
#if TT_CONFIG_OPTION_SUBPIXEL_HINTING & 1
#define TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY
#endif
#if TT_CONFIG_OPTION_SUBPIXEL_HINTING & 2
#define TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL
#endif
#endif
#endif
/*
* Check CFF darkening parameters. The checks are the same as in function
* `cff_property_set' in file `cffdrivr.c'.
*/
#if CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1 < 0 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 < 0 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 < 0 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X4 < 0 || \
\
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y1 < 0 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y2 < 0 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y3 < 0 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y4 < 0 || \
\
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1 > \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 > \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 > \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X4 || \
\
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y1 > 500 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y2 > 500 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y3 > 500 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y4 > 500
#error "Invalid CFF darkening parameters!"
#endif
FT_END_HEADER
#endif /* FTOPTION_H_ */
/* END */