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view libs/ft2static/freetype/config/ftoption.h @ 0:b2f14e535253
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| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Sat, 01 Feb 2014 19:58:19 +0200 |
| parents | |
| children |
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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 /***************************************************************************/
20 #ifndef __FTOPTION_H__
21 #define __FTOPTION_H__
24 #include <ft2build.h>
27 FT_BEGIN_HEADER
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 /*************************************************************************/
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 /*************************************************************************/
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 */
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
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 */
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
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
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
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 */
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 */
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
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
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
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
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
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
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
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 */
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 */
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
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 */
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 /*************************************************************************/
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
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
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
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
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 /*************************************************************************/
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
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 = ¶meter; */
544 /* */
545 /* error = FT_Open_Face( library, &open_args, index, &face ); */
546 /* ... */
547 /* } */
548 /* */
549 /* #define TT_CONFIG_OPTION_UNPATENTED_HINTING */
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
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
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
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
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 /*************************************************************************/
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
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
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
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
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
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 /*************************************************************************/
666 /*************************************************************************/
667 /* */
668 /* Compile autofit module with CJK (Chinese, Japanese, Korean) script */
669 /* support. */
670 /* */
671 #define AF_CONFIG_OPTION_CJK
673 /*************************************************************************/
674 /* */
675 /* Compile autofit module with Indic script support. */
676 /* */
677 #define AF_CONFIG_OPTION_INDIC
679 /* */
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
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 */
711 #ifdef FT_CONFIG_OPTION_OLD_INTERNALS
712 #define FT_MAX_CHARMAP_CACHEABLE 15
713 #endif
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
727 FT_END_HEADER
730 #endif /* __FTOPTION_H__ */
733 /* END */