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ps/trunk/libraries/win32/freetype/include/freetype/config/ftoption.h
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/**************************************************************************** | |||||
* | |||||
* ftoption.h | |||||
* | |||||
* User-selectable configuration macros (specification only). | |||||
* | |||||
* Copyright (C) 1996-2020 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 \ | |||||
* 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. | |||||
* | |||||
* 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. | |||||
*/ | |||||
/* #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 */ | |||||
/************************************************************************** | |||||
* | |||||
* 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 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 | |||||
/************************************************************************** | |||||
* | |||||
* 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. | |||||
* | |||||
* 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). | |||||
* | |||||
* This experimental option is not active if the rendering mode is | |||||
* `FT_RENDER_MODE_LIGHT`. | |||||
*/ | |||||
#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 <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 | |||||
/* | |||||
* 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 */ |
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