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1 /***************************************************************************/
2 /*                                                                         */
3 /*  ftoption.h                                                             */
4 /*                                                                         */
5 /*    User-selectable configuration macros (specification only).           */
6 /*                                                                         */
7 /*  Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,   */
8 /*            2010 by                                                      */
9 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
10 /*                                                                         */
11 /*  This file is part of the FreeType project, and may only be used,       */
12 /*  modified, and distributed under the terms of the FreeType project      */
13 /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
14 /*  this file you indicate that you have read the license and              */
15 /*  understand and accept it fully.                                        */
16 /*                                                                         */
17 /***************************************************************************/
18 
19 
20 #ifndef __FTOPTION_H__
21 #define __FTOPTION_H__
22 
23 
24 #include <ft2build.h>
25 
26 
27 FT_BEGIN_HEADER
28 
29   /*************************************************************************/
30   /*                                                                       */
31   /*                 USER-SELECTABLE CONFIGURATION MACROS                  */
32   /*                                                                       */
33   /* This file contains the default configuration macro definitions for    */
34   /* a standard build of the FreeType library.  There are three ways to    */
35   /* use this file to build project-specific versions of the library:      */
36   /*                                                                       */
37   /*  - You can modify this file by hand, but this is not recommended in   */
38   /*    cases where you would like to build several versions of the        */
39   /*    library from a single source directory.                            */
40   /*                                                                       */
41   /*  - You can put a copy of this file in your build directory, more      */
42   /*    precisely in `$BUILD/freetype/config/ftoption.h', where `$BUILD'   */
43   /*    is the name of a directory that is included _before_ the FreeType  */
44   /*    include path during compilation.                                   */
45   /*                                                                       */
46   /*    The default FreeType Makefiles and Jamfiles use the build          */
47   /*    directory `builds/<system>' by default, but you can easily change  */
48   /*    that for your own projects.                                        */
49   /*                                                                       */
50   /*  - Copy the file <ft2build.h> to `$BUILD/ft2build.h' and modify it    */
51   /*    slightly to pre-define the macro FT_CONFIG_OPTIONS_H used to       */
52   /*    locate this file during the build.  For example,                   */
53   /*                                                                       */
54   /*      #define FT_CONFIG_OPTIONS_H  <myftoptions.h>                     */
55   /*      #include <freetype/config/ftheader.h>                            */
56   /*                                                                       */
57   /*    will use `$BUILD/myftoptions.h' instead of this file for macro     */
58   /*    definitions.                                                       */
59   /*                                                                       */
60   /*    Note also that you can similarly pre-define the macro              */
61   /*    FT_CONFIG_MODULES_H used to locate the file listing of the modules */
62   /*    that are statically linked to the library at compile time.  By     */
63   /*    default, this file is <freetype/config/ftmodule.h>.                */
64   /*                                                                       */
65   /*  We highly recommend using the third method whenever possible.        */
66   /*                                                                       */
67   /*************************************************************************/
68 
69 
70   /*************************************************************************/
71   /*************************************************************************/
72   /****                                                                 ****/
73   /**** 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 ****/
74   /****                                                                 ****/
75   /*************************************************************************/
76   /*************************************************************************/
77 
78 
79   /*************************************************************************/
80   /*                                                                       */
81   /* Uncomment the line below if you want to activate sub-pixel rendering  */
82   /* (a.k.a. LCD rendering, or ClearType) in this build of the library.    */
83   /*                                                                       */
84   /* Note that this feature is covered by several Microsoft patents        */
85   /* and should not be activated in any default build of the library.      */
86   /*                                                                       */
87   /* This macro has no impact on the FreeType API, only on its             */
88   /* _implementation_.  For example, using FT_RENDER_MODE_LCD when calling */
89   /* FT_Render_Glyph still generates a bitmap that is 3 times wider than   */
90   /* the original size in case this macro isn't defined; however, each     */
91   /* triplet of subpixels has R=G=B.                                       */
92   /*                                                                       */
93   /* This is done to allow FreeType clients to run unmodified, forcing     */
94   /* them to display normal gray-level anti-aliased glyphs.                */
95   /*                                                                       */
96 /* #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING */
97 
98 
99   /*************************************************************************/
100   /*                                                                       */
101   /* Many compilers provide a non-ANSI 64-bit data type that can be used   */
102   /* by FreeType to speed up some computations.  However, this will create */
103   /* some problems when compiling the library in strict ANSI mode.         */
104   /*                                                                       */
105   /* For this reason, the use of 64-bit integers is normally disabled when */
106   /* the __STDC__ macro is defined.  You can however disable this by       */
107   /* defining the macro FT_CONFIG_OPTION_FORCE_INT64 here.                 */
108   /*                                                                       */
109   /* For most compilers, this will only create compilation warnings when   */
110   /* building the library.                                                 */
111   /*                                                                       */
112   /* ObNote: The compiler-specific 64-bit integers are detected in the     */
113   /*         file `ftconfig.h' either statically or through the            */
114   /*         `configure' script on supported platforms.                    */
115   /*                                                                       */
116 #undef FT_CONFIG_OPTION_FORCE_INT64
117 
118 
119   /*************************************************************************/
120   /*                                                                       */
121   /* If this macro is defined, do not try to use an assembler version of   */
122   /* performance-critical functions (e.g. FT_MulFix).  You should only do  */
123   /* that to verify that the assembler function works properly, or to      */
124   /* execute benchmark tests of the various implementations.               */
125 /* #define FT_CONFIG_OPTION_NO_ASSEMBLER */
126 
127 
128   /*************************************************************************/
129   /*                                                                       */
130   /* If this macro is defined, try to use an inlined assembler version of  */
131   /* the `FT_MulFix' function, which is a `hotspot' when loading and       */
132   /* hinting glyphs, and which should be executed as fast as possible.     */
133   /*                                                                       */
134   /* Note that if your compiler or CPU is not supported, this will default */
135   /* to the standard and portable implementation found in `ftcalc.c'.      */
136   /*                                                                       */
137 #define FT_CONFIG_OPTION_INLINE_MULFIX
138 
139 
140   /*************************************************************************/
141   /*                                                                       */
142   /* LZW-compressed file support.                                          */
143   /*                                                                       */
144   /*   FreeType now handles font files that have been compressed with the  */
145   /*   `compress' program.  This is mostly used to parse many of the PCF   */
146   /*   files that come with various X11 distributions.  The implementation */
147   /*   uses NetBSD's `zopen' to partially uncompress the file on the fly   */
148   /*   (see src/lzw/ftgzip.c).                                             */
149   /*                                                                       */
150   /*   Define this macro if you want to enable this `feature'.             */
151   /*                                                                       */
152 #define FT_CONFIG_OPTION_USE_LZW
153 
154 
155   /*************************************************************************/
156   /*                                                                       */
157   /* Gzip-compressed file support.                                         */
158   /*                                                                       */
159   /*   FreeType now handles font files that have been compressed with the  */
160   /*   `gzip' program.  This is mostly used to parse many of the PCF files */
161   /*   that come with XFree86.  The implementation uses `zlib' to          */
162   /*   partially uncompress the file on the fly (see src/gzip/ftgzip.c).   */
163   /*                                                                       */
164   /*   Define this macro if you want to enable this `feature'.  See also   */
165   /*   the macro FT_CONFIG_OPTION_SYSTEM_ZLIB below.                       */
166   /*                                                                       */
167 #define FT_CONFIG_OPTION_USE_ZLIB
168 
169 
170   /*************************************************************************/
171   /*                                                                       */
172   /* ZLib library selection                                                */
173   /*                                                                       */
174   /*   This macro is only used when FT_CONFIG_OPTION_USE_ZLIB is defined.  */
175   /*   It allows FreeType's `ftgzip' component to link to the system's     */
176   /*   installation of the ZLib library.  This is useful on systems like   */
177   /*   Unix or VMS where it generally is already available.                */
178   /*                                                                       */
179   /*   If you let it undefined, the component will use its own copy        */
180   /*   of the zlib sources instead.  These have been modified to be        */
181   /*   included directly within the component and *not* export external    */
182   /*   function names.  This allows you to link any program with FreeType  */
183   /*   _and_ ZLib without linking conflicts.                               */
184   /*                                                                       */
185   /*   Do not #undef this macro here since the build system might define   */
186   /*   it for certain configurations only.                                 */
187   /*                                                                       */
188 /* #define FT_CONFIG_OPTION_SYSTEM_ZLIB */
189 
190 
191   /*************************************************************************/
192   /*                                                                       */
193   /* DLL export compilation                                                */
194   /*                                                                       */
195   /*   When compiling FreeType as a DLL, some systems/compilers need a     */
196   /*   special keyword in front OR after the return type of function       */
197   /*   declarations.                                                       */
198   /*                                                                       */
199   /*   Two macros are used within the FreeType source code to define       */
200   /*   exported library functions: FT_EXPORT and FT_EXPORT_DEF.            */
201   /*                                                                       */
202   /*     FT_EXPORT( return_type )                                          */
203   /*                                                                       */
204   /*       is used in a function declaration, as in                        */
205   /*                                                                       */
206   /*         FT_EXPORT( FT_Error )                                         */
207   /*         FT_Init_FreeType( FT_Library*  alibrary );                    */
208   /*                                                                       */
209   /*                                                                       */
210   /*     FT_EXPORT_DEF( return_type )                                      */
211   /*                                                                       */
212   /*       is used in a function definition, as in                         */
213   /*                                                                       */
214   /*         FT_EXPORT_DEF( FT_Error )                                     */
215   /*         FT_Init_FreeType( FT_Library*  alibrary )                     */
216   /*         {                                                             */
217   /*           ... some code ...                                           */
218   /*           return FT_Err_Ok;                                           */
219   /*         }                                                             */
220   /*                                                                       */
221   /*   You can provide your own implementation of FT_EXPORT and            */
222   /*   FT_EXPORT_DEF here if you want.  If you leave them undefined, they  */
223   /*   will be later automatically defined as `extern return_type' to      */
224   /*   allow normal compilation.                                           */
225   /*                                                                       */
226   /*   Do not #undef these macros here since the build system might define */
227   /*   them for certain configurations only.                               */
228   /*                                                                       */
229 /* #define FT_EXPORT(x)      extern x */
230 /* #define FT_EXPORT_DEF(x)  x */
231 
232 
233   /*************************************************************************/
234   /*                                                                       */
235   /* Glyph Postscript Names handling                                       */
236   /*                                                                       */
237   /*   By default, FreeType 2 is compiled with the `psnames' module.  This */
238   /*   module is in charge of converting a glyph name string into a        */
239   /*   Unicode value, or return a Macintosh standard glyph name for the    */
240   /*   use with the TrueType `post' table.                                 */
241   /*                                                                       */
242   /*   Undefine this macro if you do not want `psnames' compiled in your   */
243   /*   build of FreeType.  This has the following effects:                 */
244   /*                                                                       */
245   /*   - The TrueType driver will provide its own set of glyph names,      */
246   /*     if you build it to support postscript names in the TrueType       */
247   /*     `post' table.                                                     */
248   /*                                                                       */
249   /*   - The Type 1 driver will not be able to synthesize a Unicode        */
250   /*     charmap out of the glyphs found in the fonts.                     */
251   /*                                                                       */
252   /*   You would normally undefine this configuration macro when building  */
253   /*   a version of FreeType that doesn't contain a Type 1 or CFF driver.  */
254   /*                                                                       */
255 #define FT_CONFIG_OPTION_POSTSCRIPT_NAMES
256 
257 
258   /*************************************************************************/
259   /*                                                                       */
260   /* Postscript Names to Unicode Values support                            */
261   /*                                                                       */
262   /*   By default, FreeType 2 is built with the `PSNames' module compiled  */
263   /*   in.  Among other things, the module is used to convert a glyph name */
264   /*   into a Unicode value.  This is especially useful in order to        */
265   /*   synthesize on the fly a Unicode charmap from the CFF/Type 1 driver  */
266   /*   through a big table named the `Adobe Glyph List' (AGL).             */
267   /*                                                                       */
268   /*   Undefine this macro if you do not want the Adobe Glyph List         */
269   /*   compiled in your `PSNames' module.  The Type 1 driver will not be   */
270   /*   able to synthesize a Unicode charmap out of the glyphs found in the */
271   /*   fonts.                                                              */
272   /*                                                                       */
273 #define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST
274 
275 
276   /*************************************************************************/
277   /*                                                                       */
278   /* Support for Mac fonts                                                 */
279   /*                                                                       */
280   /*   Define this macro if you want support for outline fonts in Mac      */
281   /*   format (mac dfont, mac resource, macbinary containing a mac         */
282   /*   resource) on non-Mac platforms.                                     */
283   /*                                                                       */
284   /*   Note that the `FOND' resource isn't checked.                        */
285   /*                                                                       */
286 #define FT_CONFIG_OPTION_MAC_FONTS
287 
288 
289   /*************************************************************************/
290   /*                                                                       */
291   /* Guessing methods to access embedded resource forks                    */
292   /*                                                                       */
293   /*   Enable extra Mac fonts support on non-Mac platforms (e.g.           */
294   /*   GNU/Linux).                                                         */
295   /*                                                                       */
296   /*   Resource forks which include fonts data are stored sometimes in     */
297   /*   locations which users or developers don't expected.  In some cases, */
298   /*   resource forks start with some offset from the head of a file.  In  */
299   /*   other cases, the actual resource fork is stored in file different   */
300   /*   from what the user specifies.  If this option is activated,         */
301   /*   FreeType tries to guess whether such offsets or different file      */
302   /*   names must be used.                                                 */
303   /*                                                                       */
304   /*   Note that normal, direct access of resource forks is controlled via */
305   /*   the FT_CONFIG_OPTION_MAC_FONTS option.                              */
306   /*                                                                       */
307 #ifdef FT_CONFIG_OPTION_MAC_FONTS
308 #define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
309 #endif
310 
311 
312   /*************************************************************************/
313   /*                                                                       */
314   /* Allow the use of FT_Incremental_Interface to load typefaces that      */
315   /* contain no glyph data, but supply it via a callback function.         */
316   /* This is required by clients supporting document formats which         */
317   /* supply font data incrementally as the document is parsed, such        */
318   /* as the Ghostscript interpreter for the PostScript language.           */
319   /*                                                                       */
320 /* #define FT_CONFIG_OPTION_INCREMENTAL */
321 
322 
323   /*************************************************************************/
324   /*                                                                       */
325   /* The size in bytes of the render pool used by the scan-line converter  */
326   /* to do all of its work.                                                */
327   /*                                                                       */
328   /* This must be greater than 4KByte if you use FreeType to rasterize     */
329   /* glyphs; otherwise, you may set it to zero to avoid unnecessary        */
330   /* allocation of the render pool.                                        */
331   /*                                                                       */
332 #define FT_RENDER_POOL_SIZE  16384L
333 
334 
335   /*************************************************************************/
336   /*                                                                       */
337   /* FT_MAX_MODULES                                                        */
338   /*                                                                       */
339   /*   The maximum number of modules that can be registered in a single    */
340   /*   FreeType library object.  32 is the default.                        */
341   /*                                                                       */
342 #define FT_MAX_MODULES  32
343 
344 
345   /*************************************************************************/
346   /*                                                                       */
347   /* Debug level                                                           */
348   /*                                                                       */
349   /*   FreeType can be compiled in debug or trace mode.  In debug mode,    */
350   /*   errors are reported through the `ftdebug' component.  In trace      */
351   /*   mode, additional messages are sent to the standard output during    */
352   /*   execution.                                                          */
353   /*                                                                       */
354   /*   Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode.     */
355   /*   Define FT_DEBUG_LEVEL_TRACE to build it in trace mode.              */
356   /*                                                                       */
357   /*   Don't define any of these macros to compile in `release' mode!      */
358   /*                                                                       */
359   /*   Do not #undef these macros here since the build system might define */
360   /*   them for certain configurations only.                               */
361   /*                                                                       */
362 /* #define FT_DEBUG_LEVEL_ERROR */
363 /* #define FT_DEBUG_LEVEL_TRACE */
364 
365 
366   /*************************************************************************/
367   /*                                                                       */
368   /* Memory Debugging                                                      */
369   /*                                                                       */
370   /*   FreeType now comes with an integrated memory debugger that is       */
371   /*   capable of detecting simple errors like memory leaks or double      */
372   /*   deletes.  To compile it within your build of the library, you       */
373   /*   should define FT_DEBUG_MEMORY here.                                 */
374   /*                                                                       */
375   /*   Note that the memory debugger is only activated at runtime when     */
376   /*   when the _environment_ variable `FT2_DEBUG_MEMORY' is defined also! */
377   /*                                                                       */
378   /*   Do not #undef this macro here since the build system might define   */
379   /*   it for certain configurations only.                                 */
380   /*                                                                       */
381 /* #define FT_DEBUG_MEMORY */
382 
383 
384   /*************************************************************************/
385   /*                                                                       */
386   /* Module errors                                                         */
387   /*                                                                       */
388   /*   If this macro is set (which is _not_ the default), the higher byte  */
389   /*   of an error code gives the module in which the error has occurred,  */
390   /*   while the lower byte is the real error code.                        */
391   /*                                                                       */
392   /*   Setting this macro makes sense for debugging purposes only, since   */
393   /*   it would break source compatibility of certain programs that use    */
394   /*   FreeType 2.                                                         */
395   /*                                                                       */
396   /*   More details can be found in the files ftmoderr.h and fterrors.h.   */
397   /*                                                                       */
398 #undef FT_CONFIG_OPTION_USE_MODULE_ERRORS
399 
400 
401   /*************************************************************************/
402   /*                                                                       */
403   /* Position Independent Code                                             */
404   /*                                                                       */
405   /*   If this macro is set (which is _not_ the default), FreeType2 will   */
406   /*   avoid creating constants that require address fixups.  Instead the  */
407   /*   constants will be moved into a struct and additional intialization  */
408   /*   code will be used.                                                  */
409   /*                                                                       */
410   /*   Setting this macro is needed for systems that prohibit address      */
411   /*   fixups, such as BREW.                                               */
412   /*                                                                       */
413 /* #define FT_CONFIG_OPTION_PIC */
414 
415 
416   /*************************************************************************/
417   /*************************************************************************/
418   /****                                                                 ****/
419   /****        S F N T   D R I V E R    C O N F I G U R A T I O N       ****/
420   /****                                                                 ****/
421   /*************************************************************************/
422   /*************************************************************************/
423 
424 
425   /*************************************************************************/
426   /*                                                                       */
427   /* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support       */
428   /* embedded bitmaps in all formats using the SFNT module (namely         */
429   /* TrueType & OpenType).                                                 */
430   /*                                                                       */
431 #define TT_CONFIG_OPTION_EMBEDDED_BITMAPS
432 
433 
434   /*************************************************************************/
435   /*                                                                       */
436   /* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to    */
437   /* load and enumerate the glyph Postscript names in a TrueType or        */
438   /* OpenType file.                                                        */
439   /*                                                                       */
440   /* Note that when you do not compile the `PSNames' module by undefining  */
441   /* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will   */
442   /* contain additional code used to read the PS Names table from a font.  */
443   /*                                                                       */
444   /* (By default, the module uses `PSNames' to extract glyph names.)       */
445   /*                                                                       */
446 #define TT_CONFIG_OPTION_POSTSCRIPT_NAMES
447 
448 
449   /*************************************************************************/
450   /*                                                                       */
451   /* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to       */
452   /* access the internal name table in a SFNT-based format like TrueType   */
453   /* or OpenType.  The name table contains various strings used to         */
454   /* describe the font, like family name, copyright, version, etc.  It     */
455   /* does not contain any glyph name though.                               */
456   /*                                                                       */
457   /* Accessing SFNT names is done through the functions declared in        */
458   /* `freetype/ftsnames.h'.                                                */
459   /*                                                                       */
460 #define TT_CONFIG_OPTION_SFNT_NAMES
461 
462 
463   /*************************************************************************/
464   /*                                                                       */
465   /* TrueType CMap support                                                 */
466   /*                                                                       */
467   /*   Here you can fine-tune which TrueType CMap table format shall be    */
468   /*   supported.                                                          */
469 #define TT_CONFIG_CMAP_FORMAT_0
470 #define TT_CONFIG_CMAP_FORMAT_2
471 #define TT_CONFIG_CMAP_FORMAT_4
472 #define TT_CONFIG_CMAP_FORMAT_6
473 #define TT_CONFIG_CMAP_FORMAT_8
474 #define TT_CONFIG_CMAP_FORMAT_10
475 #define TT_CONFIG_CMAP_FORMAT_12
476 #define TT_CONFIG_CMAP_FORMAT_13
477 #define TT_CONFIG_CMAP_FORMAT_14
478 
479 
480   /*************************************************************************/
481   /*************************************************************************/
482   /****                                                                 ****/
483   /****    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   ****/
484   /****                                                                 ****/
485   /*************************************************************************/
486   /*************************************************************************/
487 
488   /*************************************************************************/
489   /*                                                                       */
490   /* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile   */
491   /* a bytecode interpreter in the TrueType driver.                        */
492   /*                                                                       */
493   /* By undefining this, you will only compile the code necessary to load  */
494   /* TrueType glyphs without hinting.                                      */
495   /*                                                                       */
496   /*   Do not #undef this macro here, since the build system might         */
497   /*   define it for certain configurations only.                          */
498   /*                                                                       */
499 /* #define TT_CONFIG_OPTION_BYTECODE_INTERPRETER */
500 
501 
502   /*************************************************************************/
503   /*                                                                       */
504   /* If you define TT_CONFIG_OPTION_UNPATENTED_HINTING, a special version  */
505   /* of the TrueType bytecode interpreter is used that doesn't implement   */
506   /* any of the patented opcodes and algorithms.  The patents related to   */
507   /* TrueType hinting have expired worldwide since May 2010; this option   */
508   /* is now deprecated.                                                    */
509   /*                                                                       */
510   /* Note that the TT_CONFIG_OPTION_UNPATENTED_HINTING macro is *ignored*  */
511   /* if you define TT_CONFIG_OPTION_BYTECODE_INTERPRETER; in other words,  */
512   /* either define TT_CONFIG_OPTION_BYTECODE_INTERPRETER or                */
513   /* TT_CONFIG_OPTION_UNPATENTED_HINTING but not both at the same time.    */
514   /*                                                                       */
515   /* This macro is only useful for a small number of font files (mostly    */
516   /* for Asian scripts) that require bytecode interpretation to properly   */
517   /* load glyphs.  For all other fonts, this produces unpleasant results,  */
518   /* thus the unpatented interpreter is never used to load glyphs from     */
519   /* TrueType fonts unless one of the following two options is used.       */
520   /*                                                                       */
521   /*   - The unpatented interpreter is explicitly activated by the user    */
522   /*     through the FT_PARAM_TAG_UNPATENTED_HINTING parameter tag         */
523   /*     when opening the FT_Face.                                         */
524   /*                                                                       */
525   /*   - FreeType detects that the FT_Face corresponds to one of the       */
526   /*     `trick' fonts (e.g., `Mingliu') it knows about.  The font engine  */
527   /*     contains a hard-coded list of font names and other matching       */
528   /*     parameters (see function `tt_face_init' in file                   */
529   /*     `src/truetype/ttobjs.c').                                         */
530   /*                                                                       */
531   /* Here a sample code snippet for using FT_PARAM_TAG_UNPATENTED_HINTING. */
532   /*                                                                       */
533   /*   {                                                                   */
534   /*     FT_Parameter  parameter;                                          */
535   /*     FT_Open_Args  open_args;                                          */
536   /*                                                                       */
537   /*                                                                       */
538   /*     parameter.tag = FT_PARAM_TAG_UNPATENTED_HINTING;                  */
539   /*                                                                       */
540   /*     open_args.flags      = FT_OPEN_PATHNAME | FT_OPEN_PARAMS;         */
541   /*     open_args.pathname   = my_font_pathname;                          */
542   /*     open_args.num_params = 1;                                         */
543   /*     open_args.params     = &parameter;                                */
544   /*                                                                       */
545   /*     error = FT_Open_Face( library, &open_args, index, &face );        */
546   /*     ...                                                               */
547   /*   }                                                                   */
548   /*                                                                       */
549 #define TT_CONFIG_OPTION_UNPATENTED_HINTING
550 
551 
552   /*************************************************************************/
553   /*                                                                       */
554   /* Define TT_CONFIG_OPTION_INTERPRETER_SWITCH to compile the TrueType    */
555   /* bytecode interpreter with a huge switch statement, rather than a call */
556   /* table.  This results in smaller and faster code for a number of       */
557   /* architectures.                                                        */
558   /*                                                                       */
559   /* Note however that on some compiler/processor combinations, undefining */
560   /* this macro will generate faster, though larger, code.                 */
561   /*                                                                       */
562 #define TT_CONFIG_OPTION_INTERPRETER_SWITCH
563 
564 
565   /*************************************************************************/
566   /*                                                                       */
567   /* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the        */
568   /* TrueType glyph loader to use Apple's definition of how to handle      */
569   /* component offsets in composite glyphs.                                */
570   /*                                                                       */
571   /* Apple and MS disagree on the default behavior of component offsets    */
572   /* in composites.  Apple says that they should be scaled by the scaling  */
573   /* factors in the transformation matrix (roughly, it's more complex)     */
574   /* while MS says they should not.  OpenType defines two bits in the      */
575   /* composite flags array which can be used to disambiguate, but old      */
576   /* fonts will not have them.                                             */
577   /*                                                                       */
578   /*   http://partners.adobe.com/asn/developer/opentype/glyf.html          */
579   /*   http://fonts.apple.com/TTRefMan/RM06/Chap6glyf.html                 */
580   /*                                                                       */
581 #undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED
582 
583 
584   /*************************************************************************/
585   /*                                                                       */
586   /* Define TT_CONFIG_OPTION_GX_VAR_SUPPORT if you want to include         */
587   /* support for Apple's distortable font technology (fvar, gvar, cvar,    */
588   /* and avar tables).  This has many similarities to Type 1 Multiple      */
589   /* Masters support.                                                      */
590   /*                                                                       */
591 #define TT_CONFIG_OPTION_GX_VAR_SUPPORT
592 
593 
594   /*************************************************************************/
595   /*                                                                       */
596   /* Define TT_CONFIG_OPTION_BDF if you want to include support for        */
597   /* an embedded `BDF ' table within SFNT-based bitmap formats.            */
598   /*                                                                       */
599 #define TT_CONFIG_OPTION_BDF
600 
601 
602   /*************************************************************************/
603   /*************************************************************************/
604   /****                                                                 ****/
605   /****      T Y P E 1   D R I V E R    C O N F I G U R A T I O N       ****/
606   /****                                                                 ****/
607   /*************************************************************************/
608   /*************************************************************************/
609 
610 
611   /*************************************************************************/
612   /*                                                                       */
613   /* T1_MAX_DICT_DEPTH is the maximal depth of nest dictionaries and       */
614   /* arrays in the Type 1 stream (see t1load.c).  A minimum of 4 is        */
615   /* required.                                                             */
616   /*                                                                       */
617 #define T1_MAX_DICT_DEPTH  5
618 
619 
620   /*************************************************************************/
621   /*                                                                       */
622   /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine   */
623   /* calls during glyph loading.                                           */
624   /*                                                                       */
625 #define T1_MAX_SUBRS_CALLS  16
626 
627 
628   /*************************************************************************/
629   /*                                                                       */
630   /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity.  A     */
631   /* minimum of 16 is required.                                            */
632   /*                                                                       */
633   /* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256. */
634   /*                                                                       */
635 #define T1_MAX_CHARSTRINGS_OPERANDS  256
636 
637 
638   /*************************************************************************/
639   /*                                                                       */
640   /* Define this configuration macro if you want to prevent the            */
641   /* compilation of `t1afm', which is in charge of reading Type 1 AFM      */
642   /* files into an existing face.  Note that if set, the T1 driver will be */
643   /* unable to produce kerning distances.                                  */
644   /*                                                                       */
645 #undef T1_CONFIG_OPTION_NO_AFM
646 
647 
648   /*************************************************************************/
649   /*                                                                       */
650   /* Define this configuration macro if you want to prevent the            */
651   /* compilation of the Multiple Masters font support in the Type 1        */
652   /* driver.                                                               */
653   /*                                                                       */
654 #undef T1_CONFIG_OPTION_NO_MM_SUPPORT
655 
656 
657   /*************************************************************************/
658   /*************************************************************************/
659   /****                                                                 ****/
660   /****    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     ****/
661   /****                                                                 ****/
662   /*************************************************************************/
663   /*************************************************************************/
664 
665 
666   /*************************************************************************/
667   /*                                                                       */
668   /* Compile autofit module with CJK (Chinese, Japanese, Korean) script    */
669   /* support.                                                              */
670   /*                                                                       */
671 #define AF_CONFIG_OPTION_CJK
672 
673   /*************************************************************************/
674   /*                                                                       */
675   /* Compile autofit module with Indic script support.                     */
676   /*                                                                       */
677 #define AF_CONFIG_OPTION_INDIC
678 
679   /* */
680 
681 
682   /*
683    * Define this variable if you want to keep the layout of internal
684    * structures that was used prior to FreeType 2.2.  This also compiles in
685    * a few obsolete functions to avoid linking problems on typical Unix
686    * distributions.
687    *
688    * For embedded systems or building a new distribution from scratch, it
689    * is recommended to disable the macro since it reduces the library's code
690    * size and activates a few memory-saving optimizations as well.
691    */
692 #define FT_CONFIG_OPTION_OLD_INTERNALS
693 
694 
695   /*
696    *  To detect legacy cache-lookup call from a rogue client (<= 2.1.7),
697    *  we restrict the number of charmaps in a font.  The current API of
698    *  FTC_CMapCache_Lookup() takes cmap_index & charcode, but old API
699    *  takes charcode only.  To determine the passed value is for cmap_index
700    *  or charcode, the possible cmap_index is restricted not to exceed
701    *  the minimum possible charcode by a rogue client.  It is also very
702    *  unlikely that a rogue client is interested in Unicode values 0 to 15.
703    *
704    *  NOTE: The original threshold was 4 deduced from popular number of
705    *        cmap subtables in UCS-4 TrueType fonts, but now it is not
706    *        irregular for OpenType fonts to have more than 4 subtables,
707    *        because variation selector subtables are available for Apple
708    *        and Microsoft platforms.
709    */
710 
711 #ifdef FT_CONFIG_OPTION_OLD_INTERNALS
712 #define FT_MAX_CHARMAP_CACHEABLE 15
713 #endif
714 
715 
716   /*
717    * This macro is defined if either unpatented or native TrueType
718    * hinting is requested by the definitions above.
719    */
720 #ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
721 #define  TT_USE_BYTECODE_INTERPRETER
722 #undef   TT_CONFIG_OPTION_UNPATENTED_HINTING
723 #elif defined TT_CONFIG_OPTION_UNPATENTED_HINTING
724 #define  TT_USE_BYTECODE_INTERPRETER
725 #endif
726 
727 FT_END_HEADER
728 
729 
730 #endif /* __FTOPTION_H__ */
731 
732 
733 /* END */
734