ftoption.h

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00001 /***************************************************************************/
00002 /*                                                                         */
00003 /*  ftoption.h (for development)                                           */
00004 /*                                                                         */
00005 /*    User-selectable configuration macros (specification only).           */
00006 /*                                                                         */
00007 /*  Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,   */
00008 /*            2010 by                                                      */
00009 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
00010 /*                                                                         */
00011 /*  This file is part of the FreeType project, and may only be used,       */
00012 /*  modified, and distributed under the terms of the FreeType project      */
00013 /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
00014 /*  this file you indicate that you have read the license and              */
00015 /*  understand and accept it fully.                                        */
00016 /*                                                                         */
00017 /***************************************************************************/
00018 
00019 
00020 #ifndef __FTOPTION_H__
00021 #define __FTOPTION_H__
00022 
00023 
00024 #include <ft2build.h>
00025 
00026 
00027 FT_BEGIN_HEADER
00028 
00029   /*************************************************************************/
00030   /*                                                                       */
00031   /*                 USER-SELECTABLE CONFIGURATION MACROS                  */
00032   /*                                                                       */
00033   /* This file contains the default configuration macro definitions for    */
00034   /* a standard build of the FreeType library.  There are three ways to    */
00035   /* use this file to build project-specific versions of the library:      */
00036   /*                                                                       */
00037   /*  - You can modify this file by hand, but this is not recommended in   */
00038   /*    cases where you would like to build several versions of the        */
00039   /*    library from a single source directory.                            */
00040   /*                                                                       */
00041   /*  - You can put a copy of this file in your build directory, more      */
00042   /*    precisely in `$BUILD/freetype/config/ftoption.h', where `$BUILD'   */
00043   /*    is the name of a directory that is included _before_ the FreeType  */
00044   /*    include path during compilation.                                   */
00045   /*                                                                       */
00046   /*    The default FreeType Makefiles and Jamfiles use the build          */
00047   /*    directory `builds/<system>' by default, but you can easily change  */
00048   /*    that for your own projects.                                        */
00049   /*                                                                       */
00050   /*  - Copy the file <ft2build.h> to `$BUILD/ft2build.h' and modify it    */
00051   /*    slightly to pre-define the macro FT_CONFIG_OPTIONS_H used to       */
00052   /*    locate this file during the build.  For example,                   */
00053   /*                                                                       */
00054   /*      #define FT_CONFIG_OPTIONS_H  <myftoptions.h>                     */
00055   /*      #include <freetype/config/ftheader.h>                            */
00056   /*                                                                       */
00057   /*    will use `$BUILD/myftoptions.h' instead of this file for macro     */
00058   /*    definitions.                                                       */
00059   /*                                                                       */
00060   /*    Note also that you can similarly pre-define the macro              */
00061   /*    FT_CONFIG_MODULES_H used to locate the file listing of the modules */
00062   /*    that are statically linked to the library at compile time.  By     */
00063   /*    default, this file is <freetype/config/ftmodule.h>.                */
00064   /*                                                                       */
00065   /*  We highly recommend using the third method whenever possible.        */
00066   /*                                                                       */
00067   /*************************************************************************/
00068 
00069 
00070   /*************************************************************************/
00071   /*************************************************************************/
00072   /****                                                                 ****/
00073   /**** 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 ****/
00074   /****                                                                 ****/
00075   /*************************************************************************/
00076   /*************************************************************************/
00077 
00078 
00079   /*************************************************************************/
00080   /*                                                                       */
00081   /* Uncomment the line below if you want to activate sub-pixel rendering  */
00082   /* (a.k.a. LCD rendering, or ClearType) in this build of the library.    */
00083   /*                                                                       */
00084   /* Note that this feature is covered by several Microsoft patents        */
00085   /* and should not be activated in any default build of the library.      */
00086   /*                                                                       */
00087   /* This macro has no impact on the FreeType API, only on its             */
00088   /* _implementation_.  For example, using FT_RENDER_MODE_LCD when calling */
00089   /* FT_Render_Glyph still generates a bitmap that is 3 times wider than   */
00090   /* the original size in case this macro isn't defined; however, each     */
00091   /* triplet of subpixels has R=G=B.                                       */
00092   /*                                                                       */
00093   /* This is done to allow FreeType clients to run unmodified, forcing     */
00094   /* them to display normal gray-level anti-aliased glyphs.                */
00095   /*                                                                       */
00096 #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING
00097 
00098 
00099   /*************************************************************************/
00100   /*                                                                       */
00101   /* Many compilers provide a non-ANSI 64-bit data type that can be used   */
00102   /* by FreeType to speed up some computations.  However, this will create */
00103   /* some problems when compiling the library in strict ANSI mode.         */
00104   /*                                                                       */
00105   /* For this reason, the use of 64-bit integers is normally disabled when */
00106   /* the __STDC__ macro is defined.  You can however disable this by       */
00107   /* defining the macro FT_CONFIG_OPTION_FORCE_INT64 here.                 */
00108   /*                                                                       */
00109   /* For most compilers, this will only create compilation warnings when   */
00110   /* building the library.                                                 */
00111   /*                                                                       */
00112   /* ObNote: The compiler-specific 64-bit integers are detected in the     */
00113   /*         file `ftconfig.h' either statically or through the            */
00114   /*         `configure' script on supported platforms.                    */
00115   /*                                                                       */
00116 #undef FT_CONFIG_OPTION_FORCE_INT64
00117 
00118 
00119   /*************************************************************************/
00120   /*                                                                       */
00121   /* If this macro is defined, do not try to use an assembler version of   */
00122   /* performance-critical functions (e.g. FT_MulFix).  You should only do  */
00123   /* that to verify that the assembler function works properly, or to      */
00124   /* execute benchmark tests of the various implementations.               */
00125 /* #define FT_CONFIG_OPTION_NO_ASSEMBLER */
00126 
00127 
00128   /*************************************************************************/
00129   /*                                                                       */
00130   /* If this macro is defined, try to use an inlined assembler version of  */
00131   /* the `FT_MulFix' function, which is a `hotspot' when loading and       */
00132   /* hinting glyphs, and which should be executed as fast as possible.     */
00133   /*                                                                       */
00134   /* Note that if your compiler or CPU is not supported, this will default */
00135   /* to the standard and portable implementation found in `ftcalc.c'.      */
00136   /*                                                                       */
00137 #define FT_CONFIG_OPTION_INLINE_MULFIX
00138 
00139 
00140   /*************************************************************************/
00141   /*                                                                       */
00142   /* LZW-compressed file support.                                          */
00143   /*                                                                       */
00144   /*   FreeType now handles font files that have been compressed with the  */
00145   /*   `compress' program.  This is mostly used to parse many of the PCF   */
00146   /*   files that come with various X11 distributions.  The implementation */
00147   /*   uses NetBSD's `zopen' to partially uncompress the file on the fly   */
00148   /*   (see src/lzw/ftgzip.c).                                             */
00149   /*                                                                       */
00150   /*   Define this macro if you want to enable this `feature'.             */
00151   /*                                                                       */
00152 #define FT_CONFIG_OPTION_USE_LZW
00153 
00154 
00155   /*************************************************************************/
00156   /*                                                                       */
00157   /* Gzip-compressed file support.                                         */
00158   /*                                                                       */
00159   /*   FreeType now handles font files that have been compressed with the  */
00160   /*   `gzip' program.  This is mostly used to parse many of the PCF files */
00161   /*   that come with XFree86.  The implementation uses `zlib' to          */
00162   /*   partially uncompress the file on the fly (see src/gzip/ftgzip.c).   */
00163   /*                                                                       */
00164   /*   Define this macro if you want to enable this `feature'.  See also   */
00165   /*   the macro FT_CONFIG_OPTION_SYSTEM_ZLIB below.                       */
00166   /*                                                                       */
00167 #define FT_CONFIG_OPTION_USE_ZLIB
00168 
00169 
00170   /*************************************************************************/
00171   /*                                                                       */
00172   /* ZLib library selection                                                */
00173   /*                                                                       */
00174   /*   This macro is only used when FT_CONFIG_OPTION_USE_ZLIB is defined.  */
00175   /*   It allows FreeType's `ftgzip' component to link to the system's     */
00176   /*   installation of the ZLib library.  This is useful on systems like   */
00177   /*   Unix or VMS where it generally is already available.                */
00178   /*                                                                       */
00179   /*   If you let it undefined, the component will use its own copy        */
00180   /*   of the zlib sources instead.  These have been modified to be        */
00181   /*   included directly within the component and *not* export external    */
00182   /*   function names.  This allows you to link any program with FreeType  */
00183   /*   _and_ ZLib without linking conflicts.                               */
00184   /*                                                                       */
00185   /*   Do not #undef this macro here since the build system might define   */
00186   /*   it for certain configurations only.                                 */
00187   /*                                                                       */
00188 /* #define FT_CONFIG_OPTION_SYSTEM_ZLIB */
00189 
00190 
00191   /*************************************************************************/
00192   /*                                                                       */
00193   /* DLL export compilation                                                */
00194   /*                                                                       */
00195   /*   When compiling FreeType as a DLL, some systems/compilers need a     */
00196   /*   special keyword in front OR after the return type of function       */
00197   /*   declarations.                                                       */
00198   /*                                                                       */
00199   /*   Two macros are used within the FreeType source code to define       */
00200   /*   exported library functions: FT_EXPORT and FT_EXPORT_DEF.            */
00201   /*                                                                       */
00202   /*     FT_EXPORT( return_type )                                          */
00203   /*                                                                       */
00204   /*       is used in a function declaration, as in                        */
00205   /*                                                                       */
00206   /*         FT_EXPORT( FT_Error )                                         */
00207   /*         FT_Init_FreeType( FT_Library*  alibrary );                    */
00208   /*                                                                       */
00209   /*                                                                       */
00210   /*     FT_EXPORT_DEF( return_type )                                      */
00211   /*                                                                       */
00212   /*       is used in a function definition, as in                         */
00213   /*                                                                       */
00214   /*         FT_EXPORT_DEF( FT_Error )                                     */
00215   /*         FT_Init_FreeType( FT_Library*  alibrary )                     */
00216   /*         {                                                             */
00217   /*           ... some code ...                                           */
00218   /*           return FT_Err_Ok;                                           */
00219   /*         }                                                             */
00220   /*                                                                       */
00221   /*   You can provide your own implementation of FT_EXPORT and            */
00222   /*   FT_EXPORT_DEF here if you want.  If you leave them undefined, they  */
00223   /*   will be later automatically defined as `extern return_type' to      */
00224   /*   allow normal compilation.                                           */
00225   /*                                                                       */
00226   /*   Do not #undef these macros here since the build system might define */
00227   /*   them for certain configurations only.                               */
00228   /*                                                                       */
00229 /* #define FT_EXPORT(x)      extern x */
00230 /* #define FT_EXPORT_DEF(x)  x */
00231 
00232 
00233   /*************************************************************************/
00234   /*                                                                       */
00235   /* Glyph Postscript Names handling                                       */
00236   /*                                                                       */
00237   /*   By default, FreeType 2 is compiled with the `psnames' module.  This */
00238   /*   module is in charge of converting a glyph name string into a        */
00239   /*   Unicode value, or return a Macintosh standard glyph name for the    */
00240   /*   use with the TrueType `post' table.                                 */
00241   /*                                                                       */
00242   /*   Undefine this macro if you do not want `psnames' compiled in your   */
00243   /*   build of FreeType.  This has the following effects:                 */
00244   /*                                                                       */
00245   /*   - The TrueType driver will provide its own set of glyph names,      */
00246   /*     if you build it to support postscript names in the TrueType       */
00247   /*     `post' table.                                                     */
00248   /*                                                                       */
00249   /*   - The Type 1 driver will not be able to synthesize a Unicode        */
00250   /*     charmap out of the glyphs found in the fonts.                     */
00251   /*                                                                       */
00252   /*   You would normally undefine this configuration macro when building  */
00253   /*   a version of FreeType that doesn't contain a Type 1 or CFF driver.  */
00254   /*                                                                       */
00255 #define FT_CONFIG_OPTION_POSTSCRIPT_NAMES
00256 
00257 
00258   /*************************************************************************/
00259   /*                                                                       */
00260   /* Postscript Names to Unicode Values support                            */
00261   /*                                                                       */
00262   /*   By default, FreeType 2 is built with the `PSNames' module compiled  */
00263   /*   in.  Among other things, the module is used to convert a glyph name */
00264   /*   into a Unicode value.  This is especially useful in order to        */
00265   /*   synthesize on the fly a Unicode charmap from the CFF/Type 1 driver  */
00266   /*   through a big table named the `Adobe Glyph List' (AGL).             */
00267   /*                                                                       */
00268   /*   Undefine this macro if you do not want the Adobe Glyph List         */
00269   /*   compiled in your `PSNames' module.  The Type 1 driver will not be   */
00270   /*   able to synthesize a Unicode charmap out of the glyphs found in the */
00271   /*   fonts.                                                              */
00272   /*                                                                       */
00273 #define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST
00274 
00275 
00276   /*************************************************************************/
00277   /*                                                                       */
00278   /* Support for Mac fonts                                                 */
00279   /*                                                                       */
00280   /*   Define this macro if you want support for outline fonts in Mac      */
00281   /*   format (mac dfont, mac resource, macbinary containing a mac         */
00282   /*   resource) on non-Mac platforms.                                     */
00283   /*                                                                       */
00284   /*   Note that the `FOND' resource isn't checked.                        */
00285   /*                                                                       */
00286 #define FT_CONFIG_OPTION_MAC_FONTS
00287 
00288 
00289   /*************************************************************************/
00290   /*                                                                       */
00291   /* Guessing methods to access embedded resource forks                    */
00292   /*                                                                       */
00293   /*   Enable extra Mac fonts support on non-Mac platforms (e.g.           */
00294   /*   GNU/Linux).                                                         */
00295   /*                                                                       */
00296   /*   Resource forks which include fonts data are stored sometimes in     */
00297   /*   locations which users or developers don't expected.  In some cases, */
00298   /*   resource forks start with some offset from the head of a file.  In  */
00299   /*   other cases, the actual resource fork is stored in file different   */
00300   /*   from what the user specifies.  If this option is activated,         */
00301   /*   FreeType tries to guess whether such offsets or different file      */
00302   /*   names must be used.                                                 */
00303   /*                                                                       */
00304   /*   Note that normal, direct access of resource forks is controlled via */
00305   /*   the FT_CONFIG_OPTION_MAC_FONTS option.                              */
00306   /*                                                                       */
00307 #ifdef FT_CONFIG_OPTION_MAC_FONTS
00308 #define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
00309 #endif
00310 
00311 
00312   /*************************************************************************/
00313   /*                                                                       */
00314   /* Allow the use of FT_Incremental_Interface to load typefaces that      */
00315   /* contain no glyph data, but supply it via a callback function.         */
00316   /* This is required by clients supporting document formats which         */
00317   /* supply font data incrementally as the document is parsed, such        */
00318   /* as the Ghostscript interpreter for the PostScript language.           */
00319   /*                                                                       */
00320 #define FT_CONFIG_OPTION_INCREMENTAL
00321 
00322 
00323   /*************************************************************************/
00324   /*                                                                       */
00325   /* The size in bytes of the render pool used by the scan-line converter  */
00326   /* to do all of its work.                                                */
00327   /*                                                                       */
00328   /* This must be greater than 4KByte if you use FreeType to rasterize     */
00329   /* glyphs; otherwise, you may set it to zero to avoid unnecessary        */
00330   /* allocation of the render pool.                                        */
00331   /*                                                                       */
00332 #define FT_RENDER_POOL_SIZE  16384L
00333 
00334 
00335   /*************************************************************************/
00336   /*                                                                       */
00337   /* FT_MAX_MODULES                                                        */
00338   /*                                                                       */
00339   /*   The maximum number of modules that can be registered in a single    */
00340   /*   FreeType library object.  32 is the default.                        */
00341   /*                                                                       */
00342 #define FT_MAX_MODULES  32
00343 
00344 
00345   /*************************************************************************/
00346   /*                                                                       */
00347   /* Debug level                                                           */
00348   /*                                                                       */
00349   /*   FreeType can be compiled in debug or trace mode.  In debug mode,    */
00350   /*   errors are reported through the `ftdebug' component.  In trace      */
00351   /*   mode, additional messages are sent to the standard output during    */
00352   /*   execution.                                                          */
00353   /*                                                                       */
00354   /*   Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode.     */
00355   /*   Define FT_DEBUG_LEVEL_TRACE to build it in trace mode.              */
00356   /*                                                                       */
00357   /*   Don't define any of these macros to compile in `release' mode!      */
00358   /*                                                                       */
00359   /*   Do not #undef these macros here since the build system might define */
00360   /*   them for certain configurations only.                               */
00361   /*                                                                       */
00362 #define FT_DEBUG_LEVEL_ERROR
00363 #define FT_DEBUG_LEVEL_TRACE
00364 
00365 
00366   /*************************************************************************/
00367   /*                                                                       */
00368   /* Memory Debugging                                                      */
00369   /*                                                                       */
00370   /*   FreeType now comes with an integrated memory debugger that is       */
00371   /*   capable of detecting simple errors like memory leaks or double      */
00372   /*   deletes.  To compile it within your build of the library, you       */
00373   /*   should define FT_DEBUG_MEMORY here.                                 */
00374   /*                                                                       */
00375   /*   Note that the memory debugger is only activated at runtime when     */
00376   /*   when the _environment_ variable `FT2_DEBUG_MEMORY' is defined also! */
00377   /*                                                                       */
00378   /*   Do not #undef this macro here since the build system might define   */
00379   /*   it for certain configurations only.                                 */
00380   /*                                                                       */
00381 #define FT_DEBUG_MEMORY
00382 
00383 
00384   /*************************************************************************/
00385   /*                                                                       */
00386   /* Module errors                                                         */
00387   /*                                                                       */
00388   /*   If this macro is set (which is _not_ the default), the higher byte  */
00389   /*   of an error code gives the module in which the error has occurred,  */
00390   /*   while the lower byte is the real error code.                        */
00391   /*                                                                       */
00392   /*   Setting this macro makes sense for debugging purposes only, since   */
00393   /*   it would break source compatibility of certain programs that use    */
00394   /*   FreeType 2.                                                         */
00395   /*                                                                       */
00396   /*   More details can be found in the files ftmoderr.h and fterrors.h.   */
00397   /*                                                                       */
00398 #undef FT_CONFIG_OPTION_USE_MODULE_ERRORS
00399 
00400 
00401   /*************************************************************************/
00402   /*                                                                       */
00403   /* Position Independent Code                                             */
00404   /*                                                                       */
00405   /*   If this macro is set (which is _not_ the default), FreeType2 will   */
00406   /*   avoid creating constants that require address fixups.  Instead the  */
00407   /*   constants will be moved into a struct and additional intialization  */
00408   /*   code will be used.                                                  */
00409   /*                                                                       */
00410   /*   Setting this macro is needed for systems that prohibit address      */
00411   /*   fixups, such as BREW.                                               */
00412   /*                                                                       */
00413 /* #define FT_CONFIG_OPTION_PIC */
00414 
00415 
00416   /*************************************************************************/
00417   /*************************************************************************/
00418   /****                                                                 ****/
00419   /****        S F N T   D R I V E R    C O N F I G U R A T I O N       ****/
00420   /****                                                                 ****/
00421   /*************************************************************************/
00422   /*************************************************************************/
00423 
00424 
00425   /*************************************************************************/
00426   /*                                                                       */
00427   /* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support       */
00428   /* embedded bitmaps in all formats using the SFNT module (namely         */
00429   /* TrueType & OpenType).                                                 */
00430   /*                                                                       */
00431 #define TT_CONFIG_OPTION_EMBEDDED_BITMAPS
00432 
00433 
00434   /*************************************************************************/
00435   /*                                                                       */
00436   /* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to    */
00437   /* load and enumerate the glyph Postscript names in a TrueType or        */
00438   /* OpenType file.                                                        */
00439   /*                                                                       */
00440   /* Note that when you do not compile the `PSNames' module by undefining  */
00441   /* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will   */
00442   /* contain additional code used to read the PS Names table from a font.  */
00443   /*                                                                       */
00444   /* (By default, the module uses `PSNames' to extract glyph names.)       */
00445   /*                                                                       */
00446 #define TT_CONFIG_OPTION_POSTSCRIPT_NAMES
00447 
00448 
00449   /*************************************************************************/
00450   /*                                                                       */
00451   /* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to       */
00452   /* access the internal name table in a SFNT-based format like TrueType   */
00453   /* or OpenType.  The name table contains various strings used to         */
00454   /* describe the font, like family name, copyright, version, etc.  It     */
00455   /* does not contain any glyph name though.                               */
00456   /*                                                                       */
00457   /* Accessing SFNT names is done through the functions declared in        */
00458   /* `freetype/ftsnames.h'.                                                */
00459   /*                                                                       */
00460 #define TT_CONFIG_OPTION_SFNT_NAMES
00461 
00462 
00463   /*************************************************************************/
00464   /*                                                                       */
00465   /* TrueType CMap support                                                 */
00466   /*                                                                       */
00467   /*   Here you can fine-tune which TrueType CMap table format shall be    */
00468   /*   supported.                                                          */
00469 #define TT_CONFIG_CMAP_FORMAT_0
00470 #define TT_CONFIG_CMAP_FORMAT_2
00471 #define TT_CONFIG_CMAP_FORMAT_4
00472 #define TT_CONFIG_CMAP_FORMAT_6
00473 #define TT_CONFIG_CMAP_FORMAT_8
00474 #define TT_CONFIG_CMAP_FORMAT_10
00475 #define TT_CONFIG_CMAP_FORMAT_12
00476 #define TT_CONFIG_CMAP_FORMAT_13
00477 #define TT_CONFIG_CMAP_FORMAT_14
00478 
00479 
00480   /*************************************************************************/
00481   /*************************************************************************/
00482   /****                                                                 ****/
00483   /****    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   ****/
00484   /****                                                                 ****/
00485   /*************************************************************************/
00486   /*************************************************************************/
00487 
00488   /*************************************************************************/
00489   /*                                                                       */
00490   /* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile   */
00491   /* a bytecode interpreter in the TrueType driver.  Note that there are   */
00492   /* important patent issues related to the use of the interpreter.        */
00493   /*                                                                       */
00494   /* By undefining this, you will only compile the code necessary to load  */
00495   /* TrueType glyphs without hinting.                                      */
00496   /*                                                                       */
00497   /*   Do not #undef this macro here, since the build system might         */
00498   /*   define it for certain configurations only.                          */
00499   /*                                                                       */
00500 #define TT_CONFIG_OPTION_BYTECODE_INTERPRETER
00501 
00502 
00503   /*************************************************************************/
00504   /*                                                                       */
00505   /* If you define TT_CONFIG_OPTION_UNPATENTED_HINTING, a special version  */
00506   /* of the TrueType bytecode interpreter is used that doesn't implement   */
00507   /* any of the patented opcodes and algorithms.  Note that the            */
00508   /* TT_CONFIG_OPTION_UNPATENTED_HINTING macro is *ignored* if you define  */
00509   /* TT_CONFIG_OPTION_BYTECODE_INTERPRETER; in other words, either define  */
00510   /* TT_CONFIG_OPTION_BYTECODE_INTERPRETER or                              */
00511   /* TT_CONFIG_OPTION_UNPATENTED_HINTING but not both at the same time.    */
00512   /*                                                                       */
00513   /* This macro is only useful for a small number of font files (mostly    */
00514   /* for Asian scripts) that require bytecode interpretation to properly   */
00515   /* load glyphs.  For all other fonts, this produces unpleasant results,  */
00516   /* thus the unpatented interpreter is never used to load glyphs from     */
00517   /* TrueType fonts unless one of the following two options is used.       */
00518   /*                                                                       */
00519   /*   - The unpatented interpreter is explicitly activated by the user    */
00520   /*     through the FT_PARAM_TAG_UNPATENTED_HINTING parameter tag         */
00521   /*     when opening the FT_Face.                                         */
00522   /*                                                                       */
00523   /*   - FreeType detects that the FT_Face corresponds to one of the       */
00524   /*     `trick' fonts (e.g., `Mingliu') it knows about.  The font engine  */
00525   /*     contains a hard-coded list of font names and other matching       */
00526   /*     parameters (see function `tt_face_init' in file                   */
00527   /*     `src/truetype/ttobjs.c').                                         */
00528   /*                                                                       */
00529   /* Here a sample code snippet for using FT_PARAM_TAG_UNPATENTED_HINTING. */
00530   /*                                                                       */
00531   /*   {                                                                   */
00532   /*     FT_Parameter  parameter;                                          */
00533   /*     FT_Open_Args  open_args;                                          */
00534   /*                                                                       */
00535   /*                                                                       */
00536   /*     parameter.tag = FT_PARAM_TAG_UNPATENTED_HINTING;                  */
00537   /*                                                                       */
00538   /*     open_args.flags      = FT_OPEN_PATHNAME | FT_OPEN_PARAMS;         */
00539   /*     open_args.pathname   = my_font_pathname;                          */
00540   /*     open_args.num_params = 1;                                         */
00541   /*     open_args.params     = &parameter;                                */
00542   /*                                                                       */
00543   /*     error = FT_Open_Face( library, &open_args, index, &face );        */
00544   /*     ...                                                               */
00545   /*   }                                                                   */
00546   /*                                                                       */
00547 /* #define TT_CONFIG_OPTION_UNPATENTED_HINTING */
00548 
00549 
00550   /*************************************************************************/
00551   /*                                                                       */
00552   /* Define TT_CONFIG_OPTION_INTERPRETER_SWITCH to compile the TrueType    */
00553   /* bytecode interpreter with a huge switch statement, rather than a call */
00554   /* table.  This results in smaller and faster code for a number of       */
00555   /* architectures.                                                        */
00556   /*                                                                       */
00557   /* Note however that on some compiler/processor combinations, undefining */
00558   /* this macro will generate faster, though larger, code.                 */
00559   /*                                                                       */
00560 #define TT_CONFIG_OPTION_INTERPRETER_SWITCH
00561 
00562 
00563   /*************************************************************************/
00564   /*                                                                       */
00565   /* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the        */
00566   /* TrueType glyph loader to use Apple's definition of how to handle      */
00567   /* component offsets in composite glyphs.                                */
00568   /*                                                                       */
00569   /* Apple and MS disagree on the default behavior of component offsets    */
00570   /* in composites.  Apple says that they should be scaled by the scaling  */
00571   /* factors in the transformation matrix (roughly, it's more complex)     */
00572   /* while MS says they should not.  OpenType defines two bits in the      */
00573   /* composite flags array which can be used to disambiguate, but old      */
00574   /* fonts will not have them.                                             */
00575   /*                                                                       */
00576   /*   http://partners.adobe.com/asn/developer/opentype/glyf.html          */
00577   /*   http://fonts.apple.com/TTRefMan/RM06/Chap6glyf.html                 */
00578   /*                                                                       */
00579 #undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED
00580 
00581 
00582   /*************************************************************************/
00583   /*                                                                       */
00584   /* Define TT_CONFIG_OPTION_GX_VAR_SUPPORT if you want to include         */
00585   /* support for Apple's distortable font technology (fvar, gvar, cvar,    */
00586   /* and avar tables).  This has many similarities to Type 1 Multiple      */
00587   /* Masters support.                                                      */
00588   /*                                                                       */
00589 #define TT_CONFIG_OPTION_GX_VAR_SUPPORT
00590 
00591 
00592   /*************************************************************************/
00593   /*                                                                       */
00594   /* Define TT_CONFIG_OPTION_BDF if you want to include support for        */
00595   /* an embedded `BDF ' table within SFNT-based bitmap formats.            */
00596   /*                                                                       */
00597 #define TT_CONFIG_OPTION_BDF
00598 
00599 
00600   /*************************************************************************/
00601   /*************************************************************************/
00602   /****                                                                 ****/
00603   /****      T Y P E 1   D R I V E R    C O N F I G U R A T I O N       ****/
00604   /****                                                                 ****/
00605   /*************************************************************************/
00606   /*************************************************************************/
00607 
00608 
00609   /*************************************************************************/
00610   /*                                                                       */
00611   /* T1_MAX_DICT_DEPTH is the maximal depth of nest dictionaries and       */
00612   /* arrays in the Type 1 stream (see t1load.c).  A minimum of 4 is        */
00613   /* required.                                                             */
00614   /*                                                                       */
00615 #define T1_MAX_DICT_DEPTH  5
00616 
00617 
00618   /*************************************************************************/
00619   /*                                                                       */
00620   /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine   */
00621   /* calls during glyph loading.                                           */
00622   /*                                                                       */
00623 #define T1_MAX_SUBRS_CALLS  16
00624 
00625 
00626   /*************************************************************************/
00627   /*                                                                       */
00628   /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity.  A     */
00629   /* minimum of 16 is required.                                            */
00630   /*                                                                       */
00631   /* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256. */
00632   /*                                                                       */
00633 #define T1_MAX_CHARSTRINGS_OPERANDS  256
00634 
00635 
00636   /*************************************************************************/
00637   /*                                                                       */
00638   /* Define this configuration macro if you want to prevent the            */
00639   /* compilation of `t1afm', which is in charge of reading Type 1 AFM      */
00640   /* files into an existing face.  Note that if set, the T1 driver will be */
00641   /* unable to produce kerning distances.                                  */
00642   /*                                                                       */
00643 #undef T1_CONFIG_OPTION_NO_AFM
00644 
00645 
00646   /*************************************************************************/
00647   /*                                                                       */
00648   /* Define this configuration macro if you want to prevent the            */
00649   /* compilation of the Multiple Masters font support in the Type 1        */
00650   /* driver.                                                               */
00651   /*                                                                       */
00652 #undef T1_CONFIG_OPTION_NO_MM_SUPPORT
00653 
00654 
00655   /*************************************************************************/
00656   /*************************************************************************/
00657   /****                                                                 ****/
00658   /****    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     ****/
00659   /****                                                                 ****/
00660   /*************************************************************************/
00661   /*************************************************************************/
00662 
00663 
00664   /*************************************************************************/
00665   /*                                                                       */
00666   /* Compile autofit module with CJK (Chinese, Japanese, Korean) script    */
00667   /* support.                                                              */
00668   /*                                                                       */
00669 #define AF_CONFIG_OPTION_CJK
00670 
00671   /*************************************************************************/
00672   /*                                                                       */
00673   /* Compile autofit module with Indic script support.                     */
00674   /*                                                                       */
00675 #define AF_CONFIG_OPTION_INDIC
00676 
00677   /* */
00678 
00679 
00680   /*
00681    * Define this variable if you want to keep the layout of internal
00682    * structures that was used prior to FreeType 2.2.  This also compiles in
00683    * a few obsolete functions to avoid linking problems on typical Unix
00684    * distributions.
00685    *
00686    * For embedded systems or building a new distribution from scratch, it
00687    * is recommended to disable the macro since it reduces the library's code
00688    * size and activates a few memory-saving optimizations as well.
00689    */
00690 /* #define FT_CONFIG_OPTION_OLD_INTERNALS */
00691 
00692 
00693   /*
00694    * This macro is defined if either unpatented or native TrueType
00695    * hinting is requested by the definitions above.
00696    */
00697 #ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
00698 #define  TT_USE_BYTECODE_INTERPRETER
00699 #undef   TT_CONFIG_OPTION_UNPATENTED_HINTING
00700 #elif defined TT_CONFIG_OPTION_UNPATENTED_HINTING
00701 #define  TT_USE_BYTECODE_INTERPRETER
00702 #endif
00703 
00704 FT_END_HEADER
00705 
00706 
00707 #endif /* __FTOPTION_H__ */
00708 
00709 
00710 /* END */

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