1 | /***************************************************************************/ |
2 | /* */ |
3 | /* ftoption.h */ |
4 | /* */ |
5 | /* User-selectable configuration macros (specification only). */ |
6 | /* */ |
7 | /* Copyright 1996-2018 by */ |
8 | /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
9 | /* */ |
10 | /* This file is part of the FreeType project, and may only be used, */ |
11 | /* modified, and distributed under the terms of the FreeType project */ |
12 | /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
13 | /* this file you indicate that you have read the license and */ |
14 | /* understand and accept it fully. */ |
15 | /* */ |
16 | /***************************************************************************/ |
17 | |
18 | |
19 | #ifndef FTOPTION_H_ |
20 | #define FTOPTION_H_ |
21 | |
22 | |
23 | #include <ft2build.h> |
24 | |
25 | |
26 | FT_BEGIN_HEADER |
27 | |
28 | /*************************************************************************/ |
29 | /* */ |
30 | /* USER-SELECTABLE CONFIGURATION MACROS */ |
31 | /* */ |
32 | /* This file contains the default configuration macro definitions for */ |
33 | /* a standard build of the FreeType library. There are three ways to */ |
34 | /* use this file to build project-specific versions of the library: */ |
35 | /* */ |
36 | /* - You can modify this file by hand, but this is not recommended in */ |
37 | /* cases where you would like to build several versions of the */ |
38 | /* library from a single source directory. */ |
39 | /* */ |
40 | /* - You can put a copy of this file in your build directory, more */ |
41 | /* precisely in `$BUILD/freetype/config/ftoption.h', where `$BUILD' */ |
42 | /* is the name of a directory that is included _before_ the FreeType */ |
43 | /* include path during compilation. */ |
44 | /* */ |
45 | /* The default FreeType Makefiles and Jamfiles use the build */ |
46 | /* directory `builds/<system>' by default, but you can easily change */ |
47 | /* that for your own projects. */ |
48 | /* */ |
49 | /* - Copy the file <ft2build.h> to `$BUILD/ft2build.h' and modify it */ |
50 | /* slightly to pre-define the macro FT_CONFIG_OPTIONS_H used to */ |
51 | /* locate this file during the build. For example, */ |
52 | /* */ |
53 | /* #define FT_CONFIG_OPTIONS_H <myftoptions.h> */ |
54 | /* #include <freetype/config/ftheader.h> */ |
55 | /* */ |
56 | /* will use `$BUILD/myftoptions.h' instead of this file for macro */ |
57 | /* definitions. */ |
58 | /* */ |
59 | /* Note also that you can similarly pre-define the macro */ |
60 | /* FT_CONFIG_MODULES_H used to locate the file listing of the modules */ |
61 | /* that are statically linked to the library at compile time. By */ |
62 | /* default, this file is <freetype/config/ftmodule.h>. */ |
63 | /* */ |
64 | /* We highly recommend using the third method whenever possible. */ |
65 | /* */ |
66 | /*************************************************************************/ |
67 | |
68 | |
69 | /*************************************************************************/ |
70 | /*************************************************************************/ |
71 | /**** ****/ |
72 | /**** 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 ****/ |
73 | /**** ****/ |
74 | /*************************************************************************/ |
75 | /*************************************************************************/ |
76 | |
77 | |
78 | /*#***********************************************************************/ |
79 | /* */ |
80 | /* If you enable this configuration option, FreeType recognizes an */ |
81 | /* environment variable called `FREETYPE_PROPERTIES', which can be used */ |
82 | /* to control the various font drivers and modules. The controllable */ |
83 | /* properties are listed in the section @properties. */ |
84 | /* */ |
85 | /* You have to undefine this configuration option on platforms that lack */ |
86 | /* the concept of environment variables (and thus don't have the */ |
87 | /* `getenv' function), for example Windows CE. */ |
88 | /* */ |
89 | /* `FREETYPE_PROPERTIES' has the following syntax form (broken here into */ |
90 | /* multiple lines for better readability). */ |
91 | /* */ |
92 | /* { */ |
93 | /* <optional whitespace> */ |
94 | /* <module-name1> ':' */ |
95 | /* <property-name1> '=' <property-value1> */ |
96 | /* <whitespace> */ |
97 | /* <module-name2> ':' */ |
98 | /* <property-name2> '=' <property-value2> */ |
99 | /* ... */ |
100 | /* } */ |
101 | /* */ |
102 | /* Example: */ |
103 | /* */ |
104 | /* FREETYPE_PROPERTIES=truetype:interpreter-version=35 \ */ |
105 | /* cff:no-stem-darkening=1 \ */ |
106 | /* autofitter:warping=1 */ |
107 | /* */ |
108 | #define FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES |
109 | |
110 | |
111 | /*************************************************************************/ |
112 | /* */ |
113 | /* Uncomment the line below if you want to activate LCD rendering */ |
114 | /* technology similar to ClearType in this build of the library. This */ |
115 | /* technology triples the resolution in the direction color subpixels. */ |
116 | /* To mitigate color fringes inherent to this technology, you also need */ |
117 | /* to explicitly set up LCD filtering. */ |
118 | /* */ |
119 | /* Note that this feature is covered by several Microsoft patents */ |
120 | /* and should not be activated in any default build of the library. */ |
121 | /* When this macro is not defined, FreeType offers alternative LCD */ |
122 | /* rendering technology that produces excellent output without LCD */ |
123 | /* filtering. */ |
124 | /* */ |
125 | #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING |
126 | |
127 | |
128 | /*************************************************************************/ |
129 | /* */ |
130 | /* Many compilers provide a non-ANSI 64-bit data type that can be used */ |
131 | /* by FreeType to speed up some computations. However, this will create */ |
132 | /* some problems when compiling the library in strict ANSI mode. */ |
133 | /* */ |
134 | /* For this reason, the use of 64-bit integers is normally disabled when */ |
135 | /* the __STDC__ macro is defined. You can however disable this by */ |
136 | /* defining the macro FT_CONFIG_OPTION_FORCE_INT64 here. */ |
137 | /* */ |
138 | /* For most compilers, this will only create compilation warnings when */ |
139 | /* building the library. */ |
140 | /* */ |
141 | /* ObNote: The compiler-specific 64-bit integers are detected in the */ |
142 | /* file `ftconfig.h' either statically or through the */ |
143 | /* `configure' script on supported platforms. */ |
144 | /* */ |
145 | #undef FT_CONFIG_OPTION_FORCE_INT64 |
146 | |
147 | |
148 | /*************************************************************************/ |
149 | /* */ |
150 | /* If this macro is defined, do not try to use an assembler version of */ |
151 | /* performance-critical functions (e.g. FT_MulFix). You should only do */ |
152 | /* that to verify that the assembler function works properly, or to */ |
153 | /* execute benchmark tests of the various implementations. */ |
154 | /* #define FT_CONFIG_OPTION_NO_ASSEMBLER */ |
155 | |
156 | |
157 | /*************************************************************************/ |
158 | /* */ |
159 | /* If this macro is defined, try to use an inlined assembler version of */ |
160 | /* the `FT_MulFix' function, which is a `hotspot' when loading and */ |
161 | /* hinting glyphs, and which should be executed as fast as possible. */ |
162 | /* */ |
163 | /* Note that if your compiler or CPU is not supported, this will default */ |
164 | /* to the standard and portable implementation found in `ftcalc.c'. */ |
165 | /* */ |
166 | #define FT_CONFIG_OPTION_INLINE_MULFIX |
167 | |
168 | |
169 | /*************************************************************************/ |
170 | /* */ |
171 | /* LZW-compressed file support. */ |
172 | /* */ |
173 | /* FreeType now handles font files that have been compressed with the */ |
174 | /* `compress' program. This is mostly used to parse many of the PCF */ |
175 | /* files that come with various X11 distributions. The implementation */ |
176 | /* uses NetBSD's `zopen' to partially uncompress the file on the fly */ |
177 | /* (see src/lzw/ftgzip.c). */ |
178 | /* */ |
179 | /* Define this macro if you want to enable this `feature'. */ |
180 | /* */ |
181 | #define FT_CONFIG_OPTION_USE_LZW |
182 | |
183 | |
184 | /*************************************************************************/ |
185 | /* */ |
186 | /* Gzip-compressed file support. */ |
187 | /* */ |
188 | /* FreeType now handles font files that have been compressed with the */ |
189 | /* `gzip' program. This is mostly used to parse many of the PCF files */ |
190 | /* that come with XFree86. The implementation uses `zlib' to */ |
191 | /* partially uncompress the file on the fly (see src/gzip/ftgzip.c). */ |
192 | /* */ |
193 | /* Define this macro if you want to enable this `feature'. See also */ |
194 | /* the macro FT_CONFIG_OPTION_SYSTEM_ZLIB below. */ |
195 | /* */ |
196 | #define FT_CONFIG_OPTION_USE_ZLIB |
197 | |
198 | |
199 | /*************************************************************************/ |
200 | /* */ |
201 | /* ZLib library selection */ |
202 | /* */ |
203 | /* This macro is only used when FT_CONFIG_OPTION_USE_ZLIB is defined. */ |
204 | /* It allows FreeType's `ftgzip' component to link to the system's */ |
205 | /* installation of the ZLib library. This is useful on systems like */ |
206 | /* Unix or VMS where it generally is already available. */ |
207 | /* */ |
208 | /* If you let it undefined, the component will use its own copy */ |
209 | /* of the zlib sources instead. These have been modified to be */ |
210 | /* included directly within the component and *not* export external */ |
211 | /* function names. This allows you to link any program with FreeType */ |
212 | /* _and_ ZLib without linking conflicts. */ |
213 | /* */ |
214 | /* Do not #undef this macro here since the build system might define */ |
215 | /* it for certain configurations only. */ |
216 | /* */ |
217 | /* If you use a build system like cmake or the `configure' script, */ |
218 | /* options set by those programs have precendence, overwriting the */ |
219 | /* value here with the configured one. */ |
220 | /* */ |
221 | #define FT_CONFIG_OPTION_SYSTEM_ZLIB |
222 | |
223 | |
224 | /*************************************************************************/ |
225 | /* */ |
226 | /* Bzip2-compressed file support. */ |
227 | /* */ |
228 | /* FreeType now handles font files that have been compressed with the */ |
229 | /* `bzip2' program. This is mostly used to parse many of the PCF */ |
230 | /* files that come with XFree86. The implementation uses `libbz2' to */ |
231 | /* partially uncompress the file on the fly (see src/bzip2/ftbzip2.c). */ |
232 | /* Contrary to gzip, bzip2 currently is not included and need to use */ |
233 | /* the system available bzip2 implementation. */ |
234 | /* */ |
235 | /* Define this macro if you want to enable this `feature'. */ |
236 | /* */ |
237 | /* If you use a build system like cmake or the `configure' script, */ |
238 | /* options set by those programs have precendence, overwriting the */ |
239 | /* value here with the configured one. */ |
240 | /* */ |
241 | /* #undef FT_CONFIG_OPTION_USE_BZIP2 */ |
242 | |
243 | |
244 | /*************************************************************************/ |
245 | /* */ |
246 | /* Define to disable the use of file stream functions and types, FILE, */ |
247 | /* fopen() etc. Enables the use of smaller system libraries on embedded */ |
248 | /* systems that have multiple system libraries, some with or without */ |
249 | /* file stream support, in the cases where file stream support is not */ |
250 | /* necessary such as memory loading of font files. */ |
251 | /* */ |
252 | /* #define FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT */ |
253 | |
254 | |
255 | /*************************************************************************/ |
256 | /* */ |
257 | /* PNG bitmap support. */ |
258 | /* */ |
259 | /* FreeType now handles loading color bitmap glyphs in the PNG format. */ |
260 | /* This requires help from the external libpng library. Uncompressed */ |
261 | /* color bitmaps do not need any external libraries and will be */ |
262 | /* supported regardless of this configuration. */ |
263 | /* */ |
264 | /* Define this macro if you want to enable this `feature'. */ |
265 | /* */ |
266 | /* If you use a build system like cmake or the `configure' script, */ |
267 | /* options set by those programs have precendence, overwriting the */ |
268 | /* value here with the configured one. */ |
269 | /* */ |
270 | #define FT_CONFIG_OPTION_USE_PNG |
271 | |
272 | |
273 | /*************************************************************************/ |
274 | /* */ |
275 | /* HarfBuzz support. */ |
276 | /* */ |
277 | /* FreeType uses the HarfBuzz library to improve auto-hinting of */ |
278 | /* OpenType fonts. If available, many glyphs not directly addressable */ |
279 | /* by a font's character map will be hinted also. */ |
280 | /* */ |
281 | /* Define this macro if you want to enable this `feature'. */ |
282 | /* */ |
283 | /* If you use a build system like cmake or the `configure' script, */ |
284 | /* options set by those programs have precendence, overwriting the */ |
285 | /* value here with the configured one. */ |
286 | /* */ |
287 | /* #undef FT_CONFIG_OPTION_USE_HARFBUZZ */ |
288 | |
289 | |
290 | /*************************************************************************/ |
291 | /* */ |
292 | /* Glyph Postscript Names handling */ |
293 | /* */ |
294 | /* By default, FreeType 2 is compiled with the `psnames' module. This */ |
295 | /* module is in charge of converting a glyph name string into a */ |
296 | /* Unicode value, or return a Macintosh standard glyph name for the */ |
297 | /* use with the TrueType `post' table. */ |
298 | /* */ |
299 | /* Undefine this macro if you do not want `psnames' compiled in your */ |
300 | /* build of FreeType. This has the following effects: */ |
301 | /* */ |
302 | /* - The TrueType driver will provide its own set of glyph names, */ |
303 | /* if you build it to support postscript names in the TrueType */ |
304 | /* `post' table, but will not synthesize a missing Unicode charmap. */ |
305 | /* */ |
306 | /* - The Type 1 driver will not be able to synthesize a Unicode */ |
307 | /* charmap out of the glyphs found in the fonts. */ |
308 | /* */ |
309 | /* You would normally undefine this configuration macro when building */ |
310 | /* a version of FreeType that doesn't contain a Type 1 or CFF driver. */ |
311 | /* */ |
312 | #define FT_CONFIG_OPTION_POSTSCRIPT_NAMES |
313 | |
314 | |
315 | /*************************************************************************/ |
316 | /* */ |
317 | /* Postscript Names to Unicode Values support */ |
318 | /* */ |
319 | /* By default, FreeType 2 is built with the `PSNames' module compiled */ |
320 | /* in. Among other things, the module is used to convert a glyph name */ |
321 | /* into a Unicode value. This is especially useful in order to */ |
322 | /* synthesize on the fly a Unicode charmap from the CFF/Type 1 driver */ |
323 | /* through a big table named the `Adobe Glyph List' (AGL). */ |
324 | /* */ |
325 | /* Undefine this macro if you do not want the Adobe Glyph List */ |
326 | /* compiled in your `PSNames' module. The Type 1 driver will not be */ |
327 | /* able to synthesize a Unicode charmap out of the glyphs found in the */ |
328 | /* fonts. */ |
329 | /* */ |
330 | #define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST |
331 | |
332 | |
333 | /*************************************************************************/ |
334 | /* */ |
335 | /* Support for Mac fonts */ |
336 | /* */ |
337 | /* Define this macro if you want support for outline fonts in Mac */ |
338 | /* format (mac dfont, mac resource, macbinary containing a mac */ |
339 | /* resource) on non-Mac platforms. */ |
340 | /* */ |
341 | /* Note that the `FOND' resource isn't checked. */ |
342 | /* */ |
343 | #define FT_CONFIG_OPTION_MAC_FONTS |
344 | |
345 | |
346 | /*************************************************************************/ |
347 | /* */ |
348 | /* Guessing methods to access embedded resource forks */ |
349 | /* */ |
350 | /* Enable extra Mac fonts support on non-Mac platforms (e.g. */ |
351 | /* GNU/Linux). */ |
352 | /* */ |
353 | /* Resource forks which include fonts data are stored sometimes in */ |
354 | /* locations which users or developers don't expected. In some cases, */ |
355 | /* resource forks start with some offset from the head of a file. In */ |
356 | /* other cases, the actual resource fork is stored in file different */ |
357 | /* from what the user specifies. If this option is activated, */ |
358 | /* FreeType tries to guess whether such offsets or different file */ |
359 | /* names must be used. */ |
360 | /* */ |
361 | /* Note that normal, direct access of resource forks is controlled via */ |
362 | /* the FT_CONFIG_OPTION_MAC_FONTS option. */ |
363 | /* */ |
364 | #ifdef FT_CONFIG_OPTION_MAC_FONTS |
365 | #define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK |
366 | #endif |
367 | |
368 | |
369 | /*************************************************************************/ |
370 | /* */ |
371 | /* Allow the use of FT_Incremental_Interface to load typefaces that */ |
372 | /* contain no glyph data, but supply it via a callback function. */ |
373 | /* This is required by clients supporting document formats which */ |
374 | /* supply font data incrementally as the document is parsed, such */ |
375 | /* as the Ghostscript interpreter for the PostScript language. */ |
376 | /* */ |
377 | #define FT_CONFIG_OPTION_INCREMENTAL |
378 | |
379 | |
380 | /*************************************************************************/ |
381 | /* */ |
382 | /* The size in bytes of the render pool used by the scan-line converter */ |
383 | /* to do all of its work. */ |
384 | /* */ |
385 | #define FT_RENDER_POOL_SIZE 16384L |
386 | |
387 | |
388 | /*************************************************************************/ |
389 | /* */ |
390 | /* FT_MAX_MODULES */ |
391 | /* */ |
392 | /* The maximum number of modules that can be registered in a single */ |
393 | /* FreeType library object. 32 is the default. */ |
394 | /* */ |
395 | #define FT_MAX_MODULES 32 |
396 | |
397 | |
398 | /*************************************************************************/ |
399 | /* */ |
400 | /* Debug level */ |
401 | /* */ |
402 | /* FreeType can be compiled in debug or trace mode. In debug mode, */ |
403 | /* errors are reported through the `ftdebug' component. In trace */ |
404 | /* mode, additional messages are sent to the standard output during */ |
405 | /* execution. */ |
406 | /* */ |
407 | /* Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode. */ |
408 | /* Define FT_DEBUG_LEVEL_TRACE to build it in trace mode. */ |
409 | /* */ |
410 | /* Don't define any of these macros to compile in `release' mode! */ |
411 | /* */ |
412 | /* Do not #undef these macros here since the build system might define */ |
413 | /* them for certain configurations only. */ |
414 | /* */ |
415 | /* #define FT_DEBUG_LEVEL_ERROR */ |
416 | /* #define FT_DEBUG_LEVEL_TRACE */ |
417 | |
418 | |
419 | /*************************************************************************/ |
420 | /* */ |
421 | /* Autofitter debugging */ |
422 | /* */ |
423 | /* If FT_DEBUG_AUTOFIT is defined, FreeType provides some means to */ |
424 | /* control the autofitter behaviour for debugging purposes with global */ |
425 | /* boolean variables (consequently, you should *never* enable this */ |
426 | /* while compiling in `release' mode): */ |
427 | /* */ |
428 | /* _af_debug_disable_horz_hints */ |
429 | /* _af_debug_disable_vert_hints */ |
430 | /* _af_debug_disable_blue_hints */ |
431 | /* */ |
432 | /* Additionally, the following functions provide dumps of various */ |
433 | /* internal autofit structures to stdout (using `printf'): */ |
434 | /* */ |
435 | /* af_glyph_hints_dump_points */ |
436 | /* af_glyph_hints_dump_segments */ |
437 | /* af_glyph_hints_dump_edges */ |
438 | /* af_glyph_hints_get_num_segments */ |
439 | /* af_glyph_hints_get_segment_offset */ |
440 | /* */ |
441 | /* As an argument, they use another global variable: */ |
442 | /* */ |
443 | /* _af_debug_hints */ |
444 | /* */ |
445 | /* Please have a look at the `ftgrid' demo program to see how those */ |
446 | /* variables and macros should be used. */ |
447 | /* */ |
448 | /* Do not #undef these macros here since the build system might define */ |
449 | /* them for certain configurations only. */ |
450 | /* */ |
451 | /* #define FT_DEBUG_AUTOFIT */ |
452 | |
453 | |
454 | /*************************************************************************/ |
455 | /* */ |
456 | /* Memory Debugging */ |
457 | /* */ |
458 | /* FreeType now comes with an integrated memory debugger that is */ |
459 | /* capable of detecting simple errors like memory leaks or double */ |
460 | /* deletes. To compile it within your build of the library, you */ |
461 | /* should define FT_DEBUG_MEMORY here. */ |
462 | /* */ |
463 | /* Note that the memory debugger is only activated at runtime when */ |
464 | /* when the _environment_ variable `FT2_DEBUG_MEMORY' is defined also! */ |
465 | /* */ |
466 | /* Do not #undef this macro here since the build system might define */ |
467 | /* it for certain configurations only. */ |
468 | /* */ |
469 | /* #define FT_DEBUG_MEMORY */ |
470 | |
471 | |
472 | /*************************************************************************/ |
473 | /* */ |
474 | /* Module errors */ |
475 | /* */ |
476 | /* If this macro is set (which is _not_ the default), the higher byte */ |
477 | /* of an error code gives the module in which the error has occurred, */ |
478 | /* while the lower byte is the real error code. */ |
479 | /* */ |
480 | /* Setting this macro makes sense for debugging purposes only, since */ |
481 | /* it would break source compatibility of certain programs that use */ |
482 | /* FreeType 2. */ |
483 | /* */ |
484 | /* More details can be found in the files ftmoderr.h and fterrors.h. */ |
485 | /* */ |
486 | #undef FT_CONFIG_OPTION_USE_MODULE_ERRORS |
487 | |
488 | |
489 | /*************************************************************************/ |
490 | /* */ |
491 | /* Position Independent Code */ |
492 | /* */ |
493 | /* If this macro is set (which is _not_ the default), FreeType2 will */ |
494 | /* avoid creating constants that require address fixups. Instead the */ |
495 | /* constants will be moved into a struct and additional intialization */ |
496 | /* code will be used. */ |
497 | /* */ |
498 | /* Setting this macro is needed for systems that prohibit address */ |
499 | /* fixups, such as BREW. [Note that standard compilers like gcc or */ |
500 | /* clang handle PIC generation automatically; you don't have to set */ |
501 | /* FT_CONFIG_OPTION_PIC, which is only necessary for very special */ |
502 | /* compilers.] */ |
503 | /* */ |
504 | /* Note that FT_CONFIG_OPTION_PIC support is not available for all */ |
505 | /* modules (see `modules.cfg' for a complete list). For building with */ |
506 | /* FT_CONFIG_OPTION_PIC support, do the following. */ |
507 | /* */ |
508 | /* 0. Clone the repository. */ |
509 | /* 1. Define FT_CONFIG_OPTION_PIC. */ |
510 | /* 2. Remove all subdirectories in `src' that don't have */ |
511 | /* FT_CONFIG_OPTION_PIC support. */ |
512 | /* 3. Comment out the corresponding modules in `modules.cfg'. */ |
513 | /* 4. Compile. */ |
514 | /* */ |
515 | /* #define FT_CONFIG_OPTION_PIC */ |
516 | |
517 | |
518 | /*************************************************************************/ |
519 | /*************************************************************************/ |
520 | /**** ****/ |
521 | /**** S F N T D R I V E R C O N F I G U R A T I O N ****/ |
522 | /**** ****/ |
523 | /*************************************************************************/ |
524 | /*************************************************************************/ |
525 | |
526 | |
527 | /*************************************************************************/ |
528 | /* */ |
529 | /* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support */ |
530 | /* embedded bitmaps in all formats using the SFNT module (namely */ |
531 | /* TrueType & OpenType). */ |
532 | /* */ |
533 | #define TT_CONFIG_OPTION_EMBEDDED_BITMAPS |
534 | |
535 | |
536 | /*************************************************************************/ |
537 | /* */ |
538 | /* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to */ |
539 | /* load and enumerate the glyph Postscript names in a TrueType or */ |
540 | /* OpenType file. */ |
541 | /* */ |
542 | /* Note that when you do not compile the `PSNames' module by undefining */ |
543 | /* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will */ |
544 | /* contain additional code used to read the PS Names table from a font. */ |
545 | /* */ |
546 | /* (By default, the module uses `PSNames' to extract glyph names.) */ |
547 | /* */ |
548 | #define TT_CONFIG_OPTION_POSTSCRIPT_NAMES |
549 | |
550 | |
551 | /*************************************************************************/ |
552 | /* */ |
553 | /* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to */ |
554 | /* access the internal name table in a SFNT-based format like TrueType */ |
555 | /* or OpenType. The name table contains various strings used to */ |
556 | /* describe the font, like family name, copyright, version, etc. It */ |
557 | /* does not contain any glyph name though. */ |
558 | /* */ |
559 | /* Accessing SFNT names is done through the functions declared in */ |
560 | /* `ftsnames.h'. */ |
561 | /* */ |
562 | #define TT_CONFIG_OPTION_SFNT_NAMES |
563 | |
564 | |
565 | /*************************************************************************/ |
566 | /* */ |
567 | /* TrueType CMap support */ |
568 | /* */ |
569 | /* Here you can fine-tune which TrueType CMap table format shall be */ |
570 | /* supported. */ |
571 | #define TT_CONFIG_CMAP_FORMAT_0 |
572 | #define TT_CONFIG_CMAP_FORMAT_2 |
573 | #define TT_CONFIG_CMAP_FORMAT_4 |
574 | #define TT_CONFIG_CMAP_FORMAT_6 |
575 | #define TT_CONFIG_CMAP_FORMAT_8 |
576 | #define TT_CONFIG_CMAP_FORMAT_10 |
577 | #define TT_CONFIG_CMAP_FORMAT_12 |
578 | #define TT_CONFIG_CMAP_FORMAT_13 |
579 | #define TT_CONFIG_CMAP_FORMAT_14 |
580 | |
581 | |
582 | /*************************************************************************/ |
583 | /*************************************************************************/ |
584 | /**** ****/ |
585 | /**** 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 ****/ |
586 | /**** ****/ |
587 | /*************************************************************************/ |
588 | /*************************************************************************/ |
589 | |
590 | /*************************************************************************/ |
591 | /* */ |
592 | /* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile */ |
593 | /* a bytecode interpreter in the TrueType driver. */ |
594 | /* */ |
595 | /* By undefining this, you will only compile the code necessary to load */ |
596 | /* TrueType glyphs without hinting. */ |
597 | /* */ |
598 | /* Do not #undef this macro here, since the build system might */ |
599 | /* define it for certain configurations only. */ |
600 | /* */ |
601 | #define TT_CONFIG_OPTION_BYTECODE_INTERPRETER |
602 | |
603 | |
604 | /*************************************************************************/ |
605 | /* */ |
606 | /* Define TT_CONFIG_OPTION_SUBPIXEL_HINTING if you want to compile */ |
607 | /* subpixel hinting support into the TrueType driver. This modifies the */ |
608 | /* TrueType hinting mechanism when anything but FT_RENDER_MODE_MONO is */ |
609 | /* requested. */ |
610 | /* */ |
611 | /* In particular, it modifies the bytecode interpreter to interpret (or */ |
612 | /* not) instructions in a certain way so that all TrueType fonts look */ |
613 | /* like they do in a Windows ClearType (DirectWrite) environment. See */ |
614 | /* [1] for a technical overview on what this means. See `ttinterp.h' */ |
615 | /* for more details on the LEAN option. */ |
616 | /* */ |
617 | /* There are three possible values. */ |
618 | /* */ |
619 | /* Value 1: */ |
620 | /* This value is associated with the `Infinality' moniker, */ |
621 | /* contributed by an individual nicknamed Infinality with the goal of */ |
622 | /* making TrueType fonts render better than on Windows. A high */ |
623 | /* amount of configurability and flexibility, down to rules for */ |
624 | /* single glyphs in fonts, but also very slow. Its experimental and */ |
625 | /* slow nature and the original developer losing interest meant that */ |
626 | /* this option was never enabled in default builds. */ |
627 | /* */ |
628 | /* The corresponding interpreter version is v38. */ |
629 | /* */ |
630 | /* Value 2: */ |
631 | /* The new default mode for the TrueType driver. The Infinality code */ |
632 | /* base was stripped to the bare minimum and all configurability */ |
633 | /* removed in the name of speed and simplicity. The configurability */ |
634 | /* was mainly aimed at legacy fonts like Arial, Times New Roman, or */ |
635 | /* Courier. Legacy fonts are fonts that modify vertical stems to */ |
636 | /* achieve clean black-and-white bitmaps. The new mode focuses on */ |
637 | /* applying a minimal set of rules to all fonts indiscriminately so */ |
638 | /* that modern and web fonts render well while legacy fonts render */ |
639 | /* okay. */ |
640 | /* */ |
641 | /* The corresponding interpreter version is v40. */ |
642 | /* */ |
643 | /* Value 3: */ |
644 | /* Compile both, making both v38 and v40 available (the latter is the */ |
645 | /* default). */ |
646 | /* */ |
647 | /* By undefining these, you get rendering behavior like on Windows */ |
648 | /* without ClearType, i.e., Windows XP without ClearType enabled and */ |
649 | /* Win9x (interpreter version v35). Or not, depending on how much */ |
650 | /* hinting blood and testing tears the font designer put into a given */ |
651 | /* font. If you define one or both subpixel hinting options, you can */ |
652 | /* switch between between v35 and the ones you define (using */ |
653 | /* `FT_Property_Set'). */ |
654 | /* */ |
655 | /* This option requires TT_CONFIG_OPTION_BYTECODE_INTERPRETER to be */ |
656 | /* defined. */ |
657 | /* */ |
658 | /* [1] https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx */ |
659 | /* */ |
660 | /* #define TT_CONFIG_OPTION_SUBPIXEL_HINTING 1 */ |
661 | #define TT_CONFIG_OPTION_SUBPIXEL_HINTING 2 |
662 | /* #define TT_CONFIG_OPTION_SUBPIXEL_HINTING ( 1 | 2 ) */ |
663 | |
664 | |
665 | /*************************************************************************/ |
666 | /* */ |
667 | /* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the */ |
668 | /* TrueType glyph loader to use Apple's definition of how to handle */ |
669 | /* component offsets in composite glyphs. */ |
670 | /* */ |
671 | /* Apple and MS disagree on the default behavior of component offsets */ |
672 | /* in composites. Apple says that they should be scaled by the scaling */ |
673 | /* factors in the transformation matrix (roughly, it's more complex) */ |
674 | /* while MS says they should not. OpenType defines two bits in the */ |
675 | /* composite flags array which can be used to disambiguate, but old */ |
676 | /* fonts will not have them. */ |
677 | /* */ |
678 | /* https://www.microsoft.com/typography/otspec/glyf.htm */ |
679 | /* https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6glyf.html */ |
680 | /* */ |
681 | #undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED |
682 | |
683 | |
684 | /*************************************************************************/ |
685 | /* */ |
686 | /* Define TT_CONFIG_OPTION_GX_VAR_SUPPORT if you want to include */ |
687 | /* support for Apple's distortable font technology (fvar, gvar, cvar, */ |
688 | /* and avar tables). This has many similarities to Type 1 Multiple */ |
689 | /* Masters support. */ |
690 | /* */ |
691 | #define TT_CONFIG_OPTION_GX_VAR_SUPPORT |
692 | |
693 | |
694 | /*************************************************************************/ |
695 | /* */ |
696 | /* Define TT_CONFIG_OPTION_BDF if you want to include support for */ |
697 | /* an embedded `BDF ' table within SFNT-based bitmap formats. */ |
698 | /* */ |
699 | #define TT_CONFIG_OPTION_BDF |
700 | |
701 | |
702 | /*************************************************************************/ |
703 | /* */ |
704 | /* Option TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES controls the maximum */ |
705 | /* number of bytecode instructions executed for a single run of the */ |
706 | /* bytecode interpreter, needed to prevent infinite loops. You don't */ |
707 | /* want to change this except for very special situations (e.g., making */ |
708 | /* a library fuzzer spend less time to handle broken fonts). */ |
709 | /* */ |
710 | /* It is not expected that this value is ever modified by a configuring */ |
711 | /* script; instead, it gets surrounded with #ifndef ... #endif so that */ |
712 | /* the value can be set as a preprocessor option on the compiler's */ |
713 | /* command line. */ |
714 | /* */ |
715 | #ifndef TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES |
716 | #define TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES 1000000L |
717 | #endif |
718 | |
719 | |
720 | /*************************************************************************/ |
721 | /*************************************************************************/ |
722 | /**** ****/ |
723 | /**** T Y P E 1 D R I V E R C O N F I G U R A T I O N ****/ |
724 | /**** ****/ |
725 | /*************************************************************************/ |
726 | /*************************************************************************/ |
727 | |
728 | |
729 | /*************************************************************************/ |
730 | /* */ |
731 | /* T1_MAX_DICT_DEPTH is the maximum depth of nest dictionaries and */ |
732 | /* arrays in the Type 1 stream (see t1load.c). A minimum of 4 is */ |
733 | /* required. */ |
734 | /* */ |
735 | #define T1_MAX_DICT_DEPTH 5 |
736 | |
737 | |
738 | /*************************************************************************/ |
739 | /* */ |
740 | /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */ |
741 | /* calls during glyph loading. */ |
742 | /* */ |
743 | #define T1_MAX_SUBRS_CALLS 16 |
744 | |
745 | |
746 | /*************************************************************************/ |
747 | /* */ |
748 | /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */ |
749 | /* minimum of 16 is required. */ |
750 | /* */ |
751 | /* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256. */ |
752 | /* */ |
753 | #define T1_MAX_CHARSTRINGS_OPERANDS 256 |
754 | |
755 | |
756 | /*************************************************************************/ |
757 | /* */ |
758 | /* Define this configuration macro if you want to prevent the */ |
759 | /* compilation of `t1afm', which is in charge of reading Type 1 AFM */ |
760 | /* files into an existing face. Note that if set, the T1 driver will be */ |
761 | /* unable to produce kerning distances. */ |
762 | /* */ |
763 | #undef T1_CONFIG_OPTION_NO_AFM |
764 | |
765 | |
766 | /*************************************************************************/ |
767 | /* */ |
768 | /* Define this configuration macro if you want to prevent the */ |
769 | /* compilation of the Multiple Masters font support in the Type 1 */ |
770 | /* driver. */ |
771 | /* */ |
772 | #undef T1_CONFIG_OPTION_NO_MM_SUPPORT |
773 | |
774 | |
775 | /*************************************************************************/ |
776 | /* */ |
777 | /* T1_CONFIG_OPTION_OLD_ENGINE controls whether the pre-Adobe Type 1 */ |
778 | /* engine gets compiled into FreeType. If defined, it is possible to */ |
779 | /* switch between the two engines using the `hinting-engine' property of */ |
780 | /* the type1 driver module. */ |
781 | /* */ |
782 | /* #define T1_CONFIG_OPTION_OLD_ENGINE */ |
783 | |
784 | |
785 | /*************************************************************************/ |
786 | /*************************************************************************/ |
787 | /**** ****/ |
788 | /**** C F F D R I V E R C O N F I G U R A T I O N ****/ |
789 | /**** ****/ |
790 | /*************************************************************************/ |
791 | /*************************************************************************/ |
792 | |
793 | |
794 | /*************************************************************************/ |
795 | /* */ |
796 | /* Using CFF_CONFIG_OPTION_DARKENING_PARAMETER_{X,Y}{1,2,3,4} it is */ |
797 | /* possible to set up the default values of the four control points that */ |
798 | /* define the stem darkening behaviour of the (new) CFF engine. For */ |
799 | /* more details please read the documentation of the */ |
800 | /* `darkening-parameters' property (file `ftdriver.h'), which allows the */ |
801 | /* control at run-time. */ |
802 | /* */ |
803 | /* Do *not* undefine these macros! */ |
804 | /* */ |
805 | #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1 500 |
806 | #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y1 400 |
807 | |
808 | #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 1000 |
809 | #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y2 275 |
810 | |
811 | #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 1667 |
812 | #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y3 275 |
813 | |
814 | #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_X4 2333 |
815 | #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y4 0 |
816 | |
817 | |
818 | /*************************************************************************/ |
819 | /* */ |
820 | /* CFF_CONFIG_OPTION_OLD_ENGINE controls whether the pre-Adobe CFF */ |
821 | /* engine gets compiled into FreeType. If defined, it is possible to */ |
822 | /* switch between the two engines using the `hinting-engine' property of */ |
823 | /* the cff driver module. */ |
824 | /* */ |
825 | /* #define CFF_CONFIG_OPTION_OLD_ENGINE */ |
826 | |
827 | |
828 | /*************************************************************************/ |
829 | /*************************************************************************/ |
830 | /**** ****/ |
831 | /**** P C F D R I V E R C O N F I G U R A T I O N ****/ |
832 | /**** ****/ |
833 | /*************************************************************************/ |
834 | /*************************************************************************/ |
835 | |
836 | |
837 | /*************************************************************************/ |
838 | /* */ |
839 | /* There are many PCF fonts just called `Fixed' which look completely */ |
840 | /* different, and which have nothing to do with each other. When */ |
841 | /* selecting `Fixed' in KDE or Gnome one gets results that appear rather */ |
842 | /* random, the style changes often if one changes the size and one */ |
843 | /* cannot select some fonts at all. This option makes the PCF module */ |
844 | /* prepend the foundry name (plus a space) to the family name. */ |
845 | /* */ |
846 | /* We also check whether we have `wide' characters; all put together, we */ |
847 | /* get family names like `Sony Fixed' or `Misc Fixed Wide'. */ |
848 | /* */ |
849 | /* If this option is activated, it can be controlled with the */ |
850 | /* `no-long-family-names' property of the pcf driver module. */ |
851 | /* */ |
852 | /* #define PCF_CONFIG_OPTION_LONG_FAMILY_NAMES */ |
853 | |
854 | |
855 | /*************************************************************************/ |
856 | /*************************************************************************/ |
857 | /**** ****/ |
858 | /**** 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 ****/ |
859 | /**** ****/ |
860 | /*************************************************************************/ |
861 | /*************************************************************************/ |
862 | |
863 | |
864 | /*************************************************************************/ |
865 | /* */ |
866 | /* Compile autofit module with CJK (Chinese, Japanese, Korean) script */ |
867 | /* support. */ |
868 | /* */ |
869 | #define AF_CONFIG_OPTION_CJK |
870 | |
871 | /*************************************************************************/ |
872 | /* */ |
873 | /* Compile autofit module with fallback Indic script support, covering */ |
874 | /* some scripts that the `latin' submodule of the autofit module doesn't */ |
875 | /* (yet) handle. */ |
876 | /* */ |
877 | #define AF_CONFIG_OPTION_INDIC |
878 | |
879 | /*************************************************************************/ |
880 | /* */ |
881 | /* Compile autofit module with warp hinting. The idea of the warping */ |
882 | /* code is to slightly scale and shift a glyph within a single dimension */ |
883 | /* so that as much of its segments are aligned (more or less) on the */ |
884 | /* grid. To find out the optimal scaling and shifting value, various */ |
885 | /* parameter combinations are tried and scored. */ |
886 | /* */ |
887 | /* This experimental option is active only if the rendering mode is */ |
888 | /* FT_RENDER_MODE_LIGHT; you can switch warping on and off with the */ |
889 | /* `warping' property of the auto-hinter (see file `ftdriver.h' for more */ |
890 | /* information; by default it is switched off). */ |
891 | /* */ |
892 | #define AF_CONFIG_OPTION_USE_WARPER |
893 | |
894 | /*************************************************************************/ |
895 | /* */ |
896 | /* Use TrueType-like size metrics for `light' auto-hinting. */ |
897 | /* */ |
898 | /* It is strongly recommended to avoid this option, which exists only to */ |
899 | /* help some legacy applications retain its appearance and behaviour */ |
900 | /* with respect to auto-hinted TrueType fonts. */ |
901 | /* */ |
902 | /* The very reason this option exists at all are GNU/Linux distributions */ |
903 | /* like Fedora that did not un-patch the following change (which was */ |
904 | /* present in FreeType between versions 2.4.6 and 2.7.1, inclusive). */ |
905 | /* */ |
906 | /* 2011-07-16 Steven Chu <steven.f.chu@gmail.com> */ |
907 | /* */ |
908 | /* [truetype] Fix metrics on size request for scalable fonts. */ |
909 | /* */ |
910 | /* This problematic commit is now reverted (more or less). */ |
911 | /* */ |
912 | /* #define AF_CONFIG_OPTION_TT_SIZE_METRICS */ |
913 | |
914 | /* */ |
915 | |
916 | |
917 | /* |
918 | * This macro is obsolete. Support has been removed in FreeType |
919 | * version 2.5. |
920 | */ |
921 | /* #define FT_CONFIG_OPTION_OLD_INTERNALS */ |
922 | |
923 | |
924 | /* |
925 | * This macro is defined if native TrueType hinting is requested by the |
926 | * definitions above. |
927 | */ |
928 | #ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER |
929 | #define TT_USE_BYTECODE_INTERPRETER |
930 | |
931 | #ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING |
932 | #if TT_CONFIG_OPTION_SUBPIXEL_HINTING & 1 |
933 | #define TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY |
934 | #endif |
935 | |
936 | #if TT_CONFIG_OPTION_SUBPIXEL_HINTING & 2 |
937 | #define TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL |
938 | #endif |
939 | #endif |
940 | #endif |
941 | |
942 | |
943 | /* |
944 | * Check CFF darkening parameters. The checks are the same as in function |
945 | * `cff_property_set' in file `cffdrivr.c'. |
946 | */ |
947 | #if CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1 < 0 || \ |
948 | CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 < 0 || \ |
949 | CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 < 0 || \ |
950 | CFF_CONFIG_OPTION_DARKENING_PARAMETER_X4 < 0 || \ |
951 | \ |
952 | CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y1 < 0 || \ |
953 | CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y2 < 0 || \ |
954 | CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y3 < 0 || \ |
955 | CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y4 < 0 || \ |
956 | \ |
957 | CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1 > \ |
958 | CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 || \ |
959 | CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 > \ |
960 | CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 || \ |
961 | CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 > \ |
962 | CFF_CONFIG_OPTION_DARKENING_PARAMETER_X4 || \ |
963 | \ |
964 | CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y1 > 500 || \ |
965 | CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y2 > 500 || \ |
966 | CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y3 > 500 || \ |
967 | CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y4 > 500 |
968 | #error "Invalid CFF darkening parameters!" |
969 | #endif |
970 | |
971 | FT_END_HEADER |
972 | |
973 | |
974 | #endif /* FTOPTION_H_ */ |
975 | |
976 | |
977 | /* END */ |
978 | |