freetype2/devel/ftoption.h

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/***************************************************************************/
/* */
/* ftoption.h (for development) */
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/* */
/* User-selectable configuration macros (specification only). */
/* */
/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006 by */
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/* 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 ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* */
/* 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. */
/* */
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/* For this reason, the use of 64-bit integers is normally disabled when */
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/* the __STDC__ macro is defined. You can however disable this by */
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/* defining the macro FT_CONFIG_OPTION_FORCE_INT64 here. */
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/* */
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/* For most compilers, this will only create compilation warnings when */
/* building the library. */
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/* */
/* ObNote: The compiler-specific 64-bit integers are detected in the */
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/* file "ftconfig.h" either statically or through the */
/* `configure' script on supported platforms. */
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/* */
#undef FT_CONFIG_OPTION_FORCE_INT64
/*************************************************************************/
/* */
/* 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
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/*************************************************************************/
/* */
/* Gzip-compressed file support. */
/* */
/* FreeType now handles font files that have been compressed with the */
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/* '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). */
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/* */
/* Define this macro if you want to enable this `feature'. See also */
/* the macro FT_CONFIG_OPTION_SYSTEM_ZLIB below. */
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/* */
#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 */
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/* installation of the ZLib library. This is useful on systems like */
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/* Unix or VMS where it generally is already available. */
/* */
/* If you let it undefined, the component will use its own copy */
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/* of the zlib sources instead. These have been modified to be */
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/* included directly within the component and *not* export external */
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/* function names. This allows you to link any program with FreeType */
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/* _and_ ZLib without linking conflicts. */
/* */
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/* Do not #undef this macro here since the build system might define */
/* it for certain configurations only. */
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/* */
/* #define FT_CONFIG_OPTION_SYSTEM_ZLIB */
/*************************************************************************/
/* */
/* DLL export compilation */
/* */
/* When compiling FreeType as a DLL, some systems/compilers need a */
/* special keyword in front OR after the return type of function */
/* declarations. */
/* */
/* Two macros are used within the FreeType source code to define */
/* exported library functions: FT_EXPORT and FT_EXPORT_DEF. */
/* */
/* FT_EXPORT( return_type ) */
/* */
/* is used in a function declaration, as in */
/* */
/* FT_EXPORT( FT_Error ) */
/* FT_Init_FreeType( FT_Library* alibrary ); */
/* */
/* */
/* FT_EXPORT_DEF( return_type ) */
/* */
/* is used in a function definition, as in */
/* */
/* FT_EXPORT_DEF( FT_Error ) */
/* FT_Init_FreeType( FT_Library* alibrary ) */
/* { */
/* ... some code ... */
/* return FT_Err_Ok; */
/* } */
/* */
/* You can provide your own implementation of FT_EXPORT and */
/* FT_EXPORT_DEF here if you want. If you leave them undefined, they */
/* will be later automatically defined as `extern return_type' to */
/* allow normal compilation. */
/* */
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/* Do not #undef these macros here since the build system might define */
/* them for certain configurations only. */
/* */
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/* #define FT_EXPORT(x) extern x */
/* #define FT_EXPORT_DEF(x) x */
/*************************************************************************/
/* */
/* Glyph Postscript Names handling */
/* */
/* By default, FreeType 2 is compiled with the `PSNames' module. This */
/* module is in charge of converting a glyph name string into a */
/* Unicode value, or return a Macintosh standard glyph name for the */
/* use with the TrueType `post' table. */
/* */
/* Undefine this macro if you do not want `PSNames' compiled in your */
/* build of FreeType. This has the following effects: */
/* */
/* - The TrueType driver will provide its own set of glyph names, */
/* if you build it to support postscript names in the TrueType */
/* `post' table. */
/* */
/* - The Type 1 driver will not be able to synthetize 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 */
/* synthetize 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 synthetize 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
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/*************************************************************************/
/* */
/* Allow the use of FT_Incremental_Interface to load typefaces that */
/* contain no glyph data, but supply it via a callback function. */
/* This allows FreeType to be used with the PostScript language, using */
/* the GhostScript interpreter. */
/* */
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/* #define FT_CONFIG_OPTION_INCREMENTAL */
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/*************************************************************************/
/* */
/* The size in bytes of the render pool used by the scan-line converter */
/* to do all of its work. */
/* */
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/* This must be greater than 4KByte. */
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/* */
#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! */
/* */
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/* 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
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/*************************************************************************/
/* */
/* 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! */
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/* */
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/* Do not #undef this macro here since the build system might define */
/* it for certain configurations only. */
/* */
#define FT_DEBUG_MEMORY
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/*************************************************************************/
/* */
/* 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
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** S F N T D R I V E R C O N F I G U R A T I O N ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* */
/* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support */
/* embedded bitmaps in all formats using the SFNT module (namely */
/* TrueType & OpenType). */
/* */
#define TT_CONFIG_OPTION_EMBEDDED_BITMAPS
/*************************************************************************/
/* */
/* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to */
/* load and enumerate the glyph Postscript names in a TrueType or */
/* OpenType file. */
/* */
/* Note that when you do not compile the `PSNames' module by undefining */
/* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will */
/* contain additional code used to read the PS Names table from a font. */
/* */
/* (By default, the module uses `PSNames' to extract glyph names.) */
/* */
#define TT_CONFIG_OPTION_POSTSCRIPT_NAMES
/*************************************************************************/
/* */
/* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to */
/* access the internal name table in a SFNT-based format like TrueType */
/* or OpenType. The name table contains various strings used to */
/* describe the font, like family name, copyright, version, etc. It */
/* does not contain any glyph name though. */
/* */
/* Accessing SFNT names is done through the functions declared in */
/* `freetype/ftnames.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
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** 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. Note that there are */
/* important patent issues related to the use of the interpreter. */
/* */
/* By undefining this, you will only compile the code necessary to load */
/* TrueType glyphs without hinting. */
/* */
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/* Do not #undef this macro here, since the build system might */
/* define it for certain configurations only. */
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/* */
#define TT_CONFIG_OPTION_BYTECODE_INTERPRETER
/*************************************************************************/
/* */
/* Define TT_CONFIG_OPTION_UNPATENTED_HINTING (in addition to */
/* TT_CONFIG_OPTION_BYTECODE_INTERPRETER) to compile the unpatented */
/* work-around hinting system. Note that for the moment, the algorithm */
/* is only used when selected at runtime through the parameter tag */
/* FT_PARAM_TAG_UNPATENTED_HINTING; or when the debug hook */
/* FT_DEBUG_HOOK_UNPATENTED_HINTING is globally activated. */
/* */
/* #define TT_CONFIG_OPTION_UNPATENTED_HINTING */
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/*************************************************************************/
/* */
/* Define TT_CONFIG_OPTION_INTERPRETER_SWITCH to compile the TrueType */
/* bytecode interpreter with a huge switch statement, rather than a call */
/* table. This results in smaller and faster code for a number of */
/* architectures. */
/* */
/* Note however that on some compiler/processor combinations, undefining */
/* this macro will generate faster, though larger, code. */
/* */
#define TT_CONFIG_OPTION_INTERPRETER_SWITCH
/*************************************************************************/
/* */
/* 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 scale */
/* factors in the transformation matrix (roughly, it's more complex) */
/* while MS says they should not. OpenType defines two bits in the */
/* composite flags array which can be used to disambiguate, but old */
/* fonts will not have them. */
/* */
/* http://partners.adobe.com/asn/developer/opentype/glyf.html */
/* http://fonts.apple.com/TTRefMan/RM06/Chap6glyf.html */
/* */
#undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED
* src/pcf/pcfdrivr.c: Revert change from 2004-04-17. * src/pcf/pcfutil.c: Use FT_LOCAL_DEF. * src/pcf/pcfutil.h: Include FT_CONFIG_CONFIG_H. Use FT_BEGIN_HEADER and FT_END_HEADER. Use FT_LOCAL. 2004-04-24 George Williams <gww@silcom.com> Add support for Apple's distortable font technology (in GX fonts). * devel/ftoption.h, include/freetype/config/ftoption.h (TT_CONFIG_OPTION_GX_VAR_SUPPORT): New macro. * include/freetype/ftmm.h (FT_Var_Axis, FT_Var_Named_Style, FT_MM_Var): New structures. (FT_Get_MM_Var, FT_Set_Var_Design_Coordinates, FT_Set_Var_Blend_Coordinates): New function declarations. * include/freetype/internal/services/svmm.h (FT_Get_MM_Var_Func, FT_Set_Var_Design_Func): New typedefs. Update MultiMasters service. * include/freetype/internal/tttypes.h [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include FT_MULTIPLE_MASTERS_H. (GX_Blend) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New typedef. (TT_Face) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New members `doblend' and `blend'. * include/freetype/tttags.h (TTAG_avar, TTAG_cvar, TTAG_gvar): New macros. * include/freetype/internal/fttrace.h: Add `ttgxvar'. * src/base/ftmm.c (FT_Get_MM_Var, FT_Set_Var_Design_Coordinates, FT_Set_Var_Blend_Coordinates): New functions. * src/sfnt/sfobjs.c (sfnt_load_face) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Set FT_FACE_FLAG_MULTIPLE_MASTERS flag for GX var fonts. * src/truetype/ttgxvar.c, src/truetype/ttgxvar.h: New files. * src/truetype/truetype.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include ttgxvar.c. * src/truetype/ttdriver.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include FT_MULTIPLE_MASTERS_H, FT_SERVICE_MULTIPLE_MASTERS_H, and ttgxvar.h. (tt_service_gx_multi_masters) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New service. (tt_services) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Updated. * src/truetype/ttgload.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include ttgxvar.h. (TT_Process_Simple_Glyph, load_truetype_glyph) [TT_CONFIG_OPTION_GX_VAR_SUPPORT] :Support GX var fonts. * src/truetype/ttobjs.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include ttgxvar.h. (tt_done_face) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Call tt_done_blend. * src/truetype/ttpload.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include ttgxvar.h. (tt_face_load_cvt) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Call tt_face_vary_cvt. * src/truetype/rules.mk (TT_DRV_SRC): Add ttgxvar.c. * src/type1/t1driver.c (t1_service_multi_masters): Add T1_Get_MM_Var and T1_Set_Var_Design. * src/type1/t1load.c (FT_INT_TO_FIXED, FT_FIXED_TO_INT): New macros. (T1_Get_MM_Var, T1_Set_Var_Design): New functions. * src/type1/t1load.h (T1_Get_MM_Var, T1_Set_Var_Design): New function declarations.
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/*************************************************************************/
/* */
/* 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
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/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** 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 maximal 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
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** 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 script support. */
/* */
#define AF_CONFIG_OPTION_CJK
/* */
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/*
* This temporary macro is used to control various optimizations for
* reducing the heap footprint of memory-mapped TrueType files.
*/
#define FT_OPTIMIZE_MEMORY
/*
* This temporary macro is used to control whether we are going to compile
* certain functions like ft_mem_alloc in a way that prevents recent GCC
* releases from emitting zillions of `strict aliasing' warning messages
* each time a memory-management function is called.
*/
#define FT_STRICT_ALIASING
/*
* Define this variable if you want to keep the layout of internal
* structures that was used prior to FreeType 2.2. This also compiles in
* a few obsolete functions to avoid linking problems on typical Unix
* distributions.
*/
#undef FT_CONFIG_OPTION_OLD_INTERNALS
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FT_END_HEADER
#endif /* __FTOPTION_H__ */
/* END */