git.r.bdr.sh / rbdr / super-polarity / blame
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1 | /***************************************************************************/ |
| 2 | /* */ | |
| 3 | /* ftoption.h */ | |
| 4 | /* */ | |
| 5 | /* User-selectable configuration macros (specification only). */ | |
| 6 | /* */ | |
| 7 | /* Copyright 1996-2013 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 | /* Uncomment the line below if you want to activate sub-pixel rendering */ | |
| 81 | /* (a.k.a. LCD rendering, or ClearType) in this build of the library. */ | |
| 82 | /* */ | |
| 83 | /* Note that this feature is covered by several Microsoft patents */ | |
| 84 | /* and should not be activated in any default build of the library. */ | |
| 85 | /* */ | |
| 86 | /* This macro has no impact on the FreeType API, only on its */ | |
| 87 | /* _implementation_. For example, using FT_RENDER_MODE_LCD when calling */ | |
| 88 | /* FT_Render_Glyph still generates a bitmap that is 3 times wider than */ | |
| 89 | /* the original size in case this macro isn't defined; however, each */ | |
| 90 | /* triplet of subpixels has R=G=B. */ | |
| 91 | /* */ | |
| 92 | /* This is done to allow FreeType clients to run unmodified, forcing */ | |
| 93 | /* them to display normal gray-level anti-aliased glyphs. */ | |
| 94 | /* */ | |
| 95 | /* #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING */ | |
| 96 | ||
| 97 | ||
| 98 | /*************************************************************************/ | |
| 99 | /* */ | |
| 100 | /* Many compilers provide a non-ANSI 64-bit data type that can be used */ | |
| 101 | /* by FreeType to speed up some computations. However, this will create */ | |
| 102 | /* some problems when compiling the library in strict ANSI mode. */ | |
| 103 | /* */ | |
| 104 | /* For this reason, the use of 64-bit integers is normally disabled when */ | |
| 105 | /* the __STDC__ macro is defined. You can however disable this by */ | |
| 106 | /* defining the macro FT_CONFIG_OPTION_FORCE_INT64 here. */ | |
| 107 | /* */ | |
| 108 | /* For most compilers, this will only create compilation warnings when */ | |
| 109 | /* building the library. */ | |
| 110 | /* */ | |
| 111 | /* ObNote: The compiler-specific 64-bit integers are detected in the */ | |
| 112 | /* file `ftconfig.h' either statically or through the */ | |
| 113 | /* `configure' script on supported platforms. */ | |
| 114 | /* */ | |
| 115 | #undef FT_CONFIG_OPTION_FORCE_INT64 | |
| 116 | ||
| 117 | ||
| 118 | /*************************************************************************/ | |
| 119 | /* */ | |
| 120 | /* If this macro is defined, do not try to use an assembler version of */ | |
| 121 | /* performance-critical functions (e.g. FT_MulFix). You should only do */ | |
| 122 | /* that to verify that the assembler function works properly, or to */ | |
| 123 | /* execute benchmark tests of the various implementations. */ | |
| 124 | /* #define FT_CONFIG_OPTION_NO_ASSEMBLER */ | |
| 125 | ||
| 126 | ||
| 127 | /*************************************************************************/ | |
| 128 | /* */ | |
| 129 | /* If this macro is defined, try to use an inlined assembler version of */ | |
| 130 | /* the `FT_MulFix' function, which is a `hotspot' when loading and */ | |
| 131 | /* hinting glyphs, and which should be executed as fast as possible. */ | |
| 132 | /* */ | |
| 133 | /* Note that if your compiler or CPU is not supported, this will default */ | |
| 134 | /* to the standard and portable implementation found in `ftcalc.c'. */ | |
| 135 | /* */ | |
| 136 | #define FT_CONFIG_OPTION_INLINE_MULFIX | |
| 137 | ||
| 138 | ||
| 139 | /*************************************************************************/ | |
| 140 | /* */ | |
| 141 | /* LZW-compressed file support. */ | |
| 142 | /* */ | |
| 143 | /* FreeType now handles font files that have been compressed with the */ | |
| 144 | /* `compress' program. This is mostly used to parse many of the PCF */ | |
| 145 | /* files that come with various X11 distributions. The implementation */ | |
| 146 | /* uses NetBSD's `zopen' to partially uncompress the file on the fly */ | |
| 147 | /* (see src/lzw/ftgzip.c). */ | |
| 148 | /* */ | |
| 149 | /* Define this macro if you want to enable this `feature'. */ | |
| 150 | /* */ | |
| 151 | #define FT_CONFIG_OPTION_USE_LZW | |
| 152 | ||
| 153 | ||
| 154 | /*************************************************************************/ | |
| 155 | /* */ | |
| 156 | /* Gzip-compressed file support. */ | |
| 157 | /* */ | |
| 158 | /* FreeType now handles font files that have been compressed with the */ | |
| 159 | /* `gzip' program. This is mostly used to parse many of the PCF files */ | |
| 160 | /* that come with XFree86. The implementation uses `zlib' to */ | |
| 161 | /* partially uncompress the file on the fly (see src/gzip/ftgzip.c). */ | |
| 162 | /* */ | |
| 163 | /* Define this macro if you want to enable this `feature'. See also */ | |
| 164 | /* the macro FT_CONFIG_OPTION_SYSTEM_ZLIB below. */ | |
| 165 | /* */ | |
| 166 | #define FT_CONFIG_OPTION_USE_ZLIB | |
| 167 | ||
| 168 | ||
| 169 | /*************************************************************************/ | |
| 170 | /* */ | |
| 171 | /* ZLib library selection */ | |
| 172 | /* */ | |
| 173 | /* This macro is only used when FT_CONFIG_OPTION_USE_ZLIB is defined. */ | |
| 174 | /* It allows FreeType's `ftgzip' component to link to the system's */ | |
| 175 | /* installation of the ZLib library. This is useful on systems like */ | |
| 176 | /* Unix or VMS where it generally is already available. */ | |
| 177 | /* */ | |
| 178 | /* If you let it undefined, the component will use its own copy */ | |
| 179 | /* of the zlib sources instead. These have been modified to be */ | |
| 180 | /* included directly within the component and *not* export external */ | |
| 181 | /* function names. This allows you to link any program with FreeType */ | |
| 182 | /* _and_ ZLib without linking conflicts. */ | |
| 183 | /* */ | |
| 184 | /* Do not #undef this macro here since the build system might define */ | |
| 185 | /* it for certain configurations only. */ | |
| 186 | /* */ | |
| 187 | /* #define FT_CONFIG_OPTION_SYSTEM_ZLIB */ | |
| 188 | ||
| 189 | ||
| 190 | /*************************************************************************/ | |
| 191 | /* */ | |
| 192 | /* Bzip2-compressed file support. */ | |
| 193 | /* */ | |
| 194 | /* FreeType now handles font files that have been compressed with the */ | |
| 195 | /* `bzip2' program. This is mostly used to parse many of the PCF */ | |
| 196 | /* files that come with XFree86. The implementation uses `libbz2' to */ | |
| 197 | /* partially uncompress the file on the fly (see src/bzip2/ftbzip2.c). */ | |
| 198 | /* Contrary to gzip, bzip2 currently is not included and need to use */ | |
| 199 | /* the system available bzip2 implementation. */ | |
| 200 | /* */ | |
| 201 | /* Define this macro if you want to enable this `feature'. */ | |
| 202 | /* */ | |
| 203 | /* #define FT_CONFIG_OPTION_USE_BZIP2 */ | |
| 204 | ||
| 205 | ||
| 206 | /*************************************************************************/ | |
| 207 | /* */ | |
| 208 | /* Define to disable the use of file stream functions and types, FILE, */ | |
| 209 | /* fopen() etc. Enables the use of smaller system libraries on embedded */ | |
| 210 | /* systems that have multiple system libraries, some with or without */ | |
| 211 | /* file stream support, in the cases where file stream support is not */ | |
| 212 | /* necessary such as memory loading of font files. */ | |
| 213 | /* */ | |
| 214 | /* #define FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT */ | |
| 215 | ||
| 216 | ||
| 217 | /*************************************************************************/ | |
| 218 | /* */ | |
| 219 | /* DLL export compilation */ | |
| 220 | /* */ | |
| 221 | /* When compiling FreeType as a DLL, some systems/compilers need a */ | |
| 222 | /* special keyword in front OR after the return type of function */ | |
| 223 | /* declarations. */ | |
| 224 | /* */ | |
| 225 | /* Two macros are used within the FreeType source code to define */ | |
| 226 | /* exported library functions: FT_EXPORT and FT_EXPORT_DEF. */ | |
| 227 | /* */ | |
| 228 | /* FT_EXPORT( return_type ) */ | |
| 229 | /* */ | |
| 230 | /* is used in a function declaration, as in */ | |
| 231 | /* */ | |
| 232 | /* FT_EXPORT( FT_Error ) */ | |
| 233 | /* FT_Init_FreeType( FT_Library* alibrary ); */ | |
| 234 | /* */ | |
| 235 | /* */ | |
| 236 | /* FT_EXPORT_DEF( return_type ) */ | |
| 237 | /* */ | |
| 238 | /* is used in a function definition, as in */ | |
| 239 | /* */ | |
| 240 | /* FT_EXPORT_DEF( FT_Error ) */ | |
| 241 | /* FT_Init_FreeType( FT_Library* alibrary ) */ | |
| 242 | /* { */ | |
| 243 | /* ... some code ... */ | |
| 244 | /* return FT_Err_Ok; */ | |
| 245 | /* } */ | |
| 246 | /* */ | |
| 247 | /* You can provide your own implementation of FT_EXPORT and */ | |
| 248 | /* FT_EXPORT_DEF here if you want. If you leave them undefined, they */ | |
| 249 | /* will be later automatically defined as `extern return_type' to */ | |
| 250 | /* allow normal compilation. */ | |
| 251 | /* */ | |
| 252 | /* Do not #undef these macros here since the build system might define */ | |
| 253 | /* them for certain configurations only. */ | |
| 254 | /* */ | |
| 255 | /* #define FT_EXPORT(x) extern x */ | |
| 256 | /* #define FT_EXPORT_DEF(x) x */ | |
| 257 | ||
| 258 | ||
| 259 | /*************************************************************************/ | |
| 260 | /* */ | |
| 261 | /* Glyph Postscript Names handling */ | |
| 262 | /* */ | |
| 263 | /* By default, FreeType 2 is compiled with the `psnames' module. This */ | |
| 264 | /* module is in charge of converting a glyph name string into a */ | |
| 265 | /* Unicode value, or return a Macintosh standard glyph name for the */ | |
| 266 | /* use with the TrueType `post' table. */ | |
| 267 | /* */ | |
| 268 | /* Undefine this macro if you do not want `psnames' compiled in your */ | |
| 269 | /* build of FreeType. This has the following effects: */ | |
| 270 | /* */ | |
| 271 | /* - The TrueType driver will provide its own set of glyph names, */ | |
| 272 | /* if you build it to support postscript names in the TrueType */ | |
| 273 | /* `post' table. */ | |
| 274 | /* */ | |
| 275 | /* - The Type 1 driver will not be able to synthesize a Unicode */ | |
| 276 | /* charmap out of the glyphs found in the fonts. */ | |
| 277 | /* */ | |
| 278 | /* You would normally undefine this configuration macro when building */ | |
| 279 | /* a version of FreeType that doesn't contain a Type 1 or CFF driver. */ | |
| 280 | /* */ | |
| 281 | #define FT_CONFIG_OPTION_POSTSCRIPT_NAMES | |
| 282 | ||
| 283 | ||
| 284 | /*************************************************************************/ | |
| 285 | /* */ | |
| 286 | /* Postscript Names to Unicode Values support */ | |
| 287 | /* */ | |
| 288 | /* By default, FreeType 2 is built with the `PSNames' module compiled */ | |
| 289 | /* in. Among other things, the module is used to convert a glyph name */ | |
| 290 | /* into a Unicode value. This is especially useful in order to */ | |
| 291 | /* synthesize on the fly a Unicode charmap from the CFF/Type 1 driver */ | |
| 292 | /* through a big table named the `Adobe Glyph List' (AGL). */ | |
| 293 | /* */ | |
| 294 | /* Undefine this macro if you do not want the Adobe Glyph List */ | |
| 295 | /* compiled in your `PSNames' module. The Type 1 driver will not be */ | |
| 296 | /* able to synthesize a Unicode charmap out of the glyphs found in the */ | |
| 297 | /* fonts. */ | |
| 298 | /* */ | |
| 299 | #define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST | |
| 300 | ||
| 301 | ||
| 302 | /*************************************************************************/ | |
| 303 | /* */ | |
| 304 | /* Support for Mac fonts */ | |
| 305 | /* */ | |
| 306 | /* Define this macro if you want support for outline fonts in Mac */ | |
| 307 | /* format (mac dfont, mac resource, macbinary containing a mac */ | |
| 308 | /* resource) on non-Mac platforms. */ | |
| 309 | /* */ | |
| 310 | /* Note that the `FOND' resource isn't checked. */ | |
| 311 | /* */ | |
| 312 | #define FT_CONFIG_OPTION_MAC_FONTS | |
| 313 | ||
| 314 | ||
| 315 | /*************************************************************************/ | |
| 316 | /* */ | |
| 317 | /* Guessing methods to access embedded resource forks */ | |
| 318 | /* */ | |
| 319 | /* Enable extra Mac fonts support on non-Mac platforms (e.g. */ | |
| 320 | /* GNU/Linux). */ | |
| 321 | /* */ | |
| 322 | /* Resource forks which include fonts data are stored sometimes in */ | |
| 323 | /* locations which users or developers don't expected. In some cases, */ | |
| 324 | /* resource forks start with some offset from the head of a file. In */ | |
| 325 | /* other cases, the actual resource fork is stored in file different */ | |
| 326 | /* from what the user specifies. If this option is activated, */ | |
| 327 | /* FreeType tries to guess whether such offsets or different file */ | |
| 328 | /* names must be used. */ | |
| 329 | /* */ | |
| 330 | /* Note that normal, direct access of resource forks is controlled via */ | |
| 331 | /* the FT_CONFIG_OPTION_MAC_FONTS option. */ | |
| 332 | /* */ | |
| 333 | #ifdef FT_CONFIG_OPTION_MAC_FONTS | |
| 334 | #define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK | |
| 335 | #endif | |
| 336 | ||
| 337 | ||
| 338 | /*************************************************************************/ | |
| 339 | /* */ | |
| 340 | /* Allow the use of FT_Incremental_Interface to load typefaces that */ | |
| 341 | /* contain no glyph data, but supply it via a callback function. */ | |
| 342 | /* This is required by clients supporting document formats which */ | |
| 343 | /* supply font data incrementally as the document is parsed, such */ | |
| 344 | /* as the Ghostscript interpreter for the PostScript language. */ | |
| 345 | /* */ | |
| 346 | #define FT_CONFIG_OPTION_INCREMENTAL | |
| 347 | ||
| 348 | ||
| 349 | /*************************************************************************/ | |
| 350 | /* */ | |
| 351 | /* The size in bytes of the render pool used by the scan-line converter */ | |
| 352 | /* to do all of its work. */ | |
| 353 | /* */ | |
| 354 | /* This must be greater than 4KByte if you use FreeType to rasterize */ | |
| 355 | /* glyphs; otherwise, you may set it to zero to avoid unnecessary */ | |
| 356 | /* allocation of the render pool. */ | |
| 357 | /* */ | |
| 358 | #define FT_RENDER_POOL_SIZE 16384L | |
| 359 | ||
| 360 | ||
| 361 | /*************************************************************************/ | |
| 362 | /* */ | |
| 363 | /* FT_MAX_MODULES */ | |
| 364 | /* */ | |
| 365 | /* The maximum number of modules that can be registered in a single */ | |
| 366 | /* FreeType library object. 32 is the default. */ | |
| 367 | /* */ | |
| 368 | #define FT_MAX_MODULES 32 | |
| 369 | ||
| 370 | ||
| 371 | /*************************************************************************/ | |
| 372 | /* */ | |
| 373 | /* Debug level */ | |
| 374 | /* */ | |
| 375 | /* FreeType can be compiled in debug or trace mode. In debug mode, */ | |
| 376 | /* errors are reported through the `ftdebug' component. In trace */ | |
| 377 | /* mode, additional messages are sent to the standard output during */ | |
| 378 | /* execution. */ | |
| 379 | /* */ | |
| 380 | /* Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode. */ | |
| 381 | /* Define FT_DEBUG_LEVEL_TRACE to build it in trace mode. */ | |
| 382 | /* */ | |
| 383 | /* Don't define any of these macros to compile in `release' mode! */ | |
| 384 | /* */ | |
| 385 | /* Do not #undef these macros here since the build system might define */ | |
| 386 | /* them for certain configurations only. */ | |
| 387 | /* */ | |
| 388 | /* #define FT_DEBUG_LEVEL_ERROR */ | |
| 389 | /* #define FT_DEBUG_LEVEL_TRACE */ | |
| 390 | ||
| 391 | ||
| 392 | /*************************************************************************/ | |
| 393 | /* */ | |
| 394 | /* Autofitter debugging */ | |
| 395 | /* */ | |
| 396 | /* If FT_DEBUG_AUTOFIT is defined, FreeType provides some means to */ | |
| 397 | /* control the autofitter behaviour for debugging purposes with global */ | |
| 398 | /* boolean variables (consequently, you should *never* enable this */ | |
| 399 | /* while compiling in `release' mode): */ | |
| 400 | /* */ | |
| 401 | /* _af_debug_disable_horz_hints */ | |
| 402 | /* _af_debug_disable_vert_hints */ | |
| 403 | /* _af_debug_disable_blue_hints */ | |
| 404 | /* */ | |
| 405 | /* Additionally, the following functions provide dumps of various */ | |
| 406 | /* internal autofit structures to stdout (using `printf'): */ | |
| 407 | /* */ | |
| 408 | /* af_glyph_hints_dump_points */ | |
| 409 | /* af_glyph_hints_dump_segments */ | |
| 410 | /* af_glyph_hints_dump_edges */ | |
| 411 | /* */ | |
| 412 | /* As an argument, they use another global variable: */ | |
| 413 | /* */ | |
| 414 | /* _af_debug_hints */ | |
| 415 | /* */ | |
| 416 | /* Please have a look at the `ftgrid' demo program to see how those */ | |
| 417 | /* variables and macros should be used. */ | |
| 418 | /* */ | |
| 419 | /* Do not #undef these macros here since the build system might define */ | |
| 420 | /* them for certain configurations only. */ | |
| 421 | /* */ | |
| 422 | /* #define FT_DEBUG_AUTOFIT */ | |
| 423 | ||
| 424 | ||
| 425 | /*************************************************************************/ | |
| 426 | /* */ | |
| 427 | /* Memory Debugging */ | |
| 428 | /* */ | |
| 429 | /* FreeType now comes with an integrated memory debugger that is */ | |
| 430 | /* capable of detecting simple errors like memory leaks or double */ | |
| 431 | /* deletes. To compile it within your build of the library, you */ | |
| 432 | /* should define FT_DEBUG_MEMORY here. */ | |
| 433 | /* */ | |
| 434 | /* Note that the memory debugger is only activated at runtime when */ | |
| 435 | /* when the _environment_ variable `FT2_DEBUG_MEMORY' is defined also! */ | |
| 436 | /* */ | |
| 437 | /* Do not #undef this macro here since the build system might define */ | |
| 438 | /* it for certain configurations only. */ | |
| 439 | /* */ | |
| 440 | /* #define FT_DEBUG_MEMORY */ | |
| 441 | ||
| 442 | ||
| 443 | /*************************************************************************/ | |
| 444 | /* */ | |
| 445 | /* Module errors */ | |
| 446 | /* */ | |
| 447 | /* If this macro is set (which is _not_ the default), the higher byte */ | |
| 448 | /* of an error code gives the module in which the error has occurred, */ | |
| 449 | /* while the lower byte is the real error code. */ | |
| 450 | /* */ | |
| 451 | /* Setting this macro makes sense for debugging purposes only, since */ | |
| 452 | /* it would break source compatibility of certain programs that use */ | |
| 453 | /* FreeType 2. */ | |
| 454 | /* */ | |
| 455 | /* More details can be found in the files ftmoderr.h and fterrors.h. */ | |
| 456 | /* */ | |
| 457 | #undef FT_CONFIG_OPTION_USE_MODULE_ERRORS | |
| 458 | ||
| 459 | ||
| 460 | /*************************************************************************/ | |
| 461 | /* */ | |
| 462 | /* Position Independent Code */ | |
| 463 | /* */ | |
| 464 | /* If this macro is set (which is _not_ the default), FreeType2 will */ | |
| 465 | /* avoid creating constants that require address fixups. Instead the */ | |
| 466 | /* constants will be moved into a struct and additional intialization */ | |
| 467 | /* code will be used. */ | |
| 468 | /* */ | |
| 469 | /* Setting this macro is needed for systems that prohibit address */ | |
| 470 | /* fixups, such as BREW. */ | |
| 471 | /* */ | |
| 472 | /* #define FT_CONFIG_OPTION_PIC */ | |
| 473 | ||
| 474 | ||
| 475 | /*************************************************************************/ | |
| 476 | /*************************************************************************/ | |
| 477 | /**** ****/ | |
| 478 | /**** S F N T D R I V E R C O N F I G U R A T I O N ****/ | |
| 479 | /**** ****/ | |
| 480 | /*************************************************************************/ | |
| 481 | /*************************************************************************/ | |
| 482 | ||
| 483 | ||
| 484 | /*************************************************************************/ | |
| 485 | /* */ | |
| 486 | /* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support */ | |
| 487 | /* embedded bitmaps in all formats using the SFNT module (namely */ | |
| 488 | /* TrueType & OpenType). */ | |
| 489 | /* */ | |
| 490 | #define TT_CONFIG_OPTION_EMBEDDED_BITMAPS | |
| 491 | ||
| 492 | ||
| 493 | /*************************************************************************/ | |
| 494 | /* */ | |
| 495 | /* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to */ | |
| 496 | /* load and enumerate the glyph Postscript names in a TrueType or */ | |
| 497 | /* OpenType file. */ | |
| 498 | /* */ | |
| 499 | /* Note that when you do not compile the `PSNames' module by undefining */ | |
| 500 | /* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will */ | |
| 501 | /* contain additional code used to read the PS Names table from a font. */ | |
| 502 | /* */ | |
| 503 | /* (By default, the module uses `PSNames' to extract glyph names.) */ | |
| 504 | /* */ | |
| 505 | #define TT_CONFIG_OPTION_POSTSCRIPT_NAMES | |
| 506 | ||
| 507 | ||
| 508 | /*************************************************************************/ | |
| 509 | /* */ | |
| 510 | /* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to */ | |
| 511 | /* access the internal name table in a SFNT-based format like TrueType */ | |
| 512 | /* or OpenType. The name table contains various strings used to */ | |
| 513 | /* describe the font, like family name, copyright, version, etc. It */ | |
| 514 | /* does not contain any glyph name though. */ | |
| 515 | /* */ | |
| 516 | /* Accessing SFNT names is done through the functions declared in */ | |
| 517 | /* `freetype/ftsnames.h'. */ | |
| 518 | /* */ | |
| 519 | #define TT_CONFIG_OPTION_SFNT_NAMES | |
| 520 | ||
| 521 | ||
| 522 | /*************************************************************************/ | |
| 523 | /* */ | |
| 524 | /* TrueType CMap support */ | |
| 525 | /* */ | |
| 526 | /* Here you can fine-tune which TrueType CMap table format shall be */ | |
| 527 | /* supported. */ | |
| 528 | #define TT_CONFIG_CMAP_FORMAT_0 | |
| 529 | #define TT_CONFIG_CMAP_FORMAT_2 | |
| 530 | #define TT_CONFIG_CMAP_FORMAT_4 | |
| 531 | #define TT_CONFIG_CMAP_FORMAT_6 | |
| 532 | #define TT_CONFIG_CMAP_FORMAT_8 | |
| 533 | #define TT_CONFIG_CMAP_FORMAT_10 | |
| 534 | #define TT_CONFIG_CMAP_FORMAT_12 | |
| 535 | #define TT_CONFIG_CMAP_FORMAT_13 | |
| 536 | #define TT_CONFIG_CMAP_FORMAT_14 | |
| 537 | ||
| 538 | ||
| 539 | /*************************************************************************/ | |
| 540 | /*************************************************************************/ | |
| 541 | /**** ****/ | |
| 542 | /**** 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 ****/ | |
| 543 | /**** ****/ | |
| 544 | /*************************************************************************/ | |
| 545 | /*************************************************************************/ | |
| 546 | ||
| 547 | /*************************************************************************/ | |
| 548 | /* */ | |
| 549 | /* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile */ | |
| 550 | /* a bytecode interpreter in the TrueType driver. */ | |
| 551 | /* */ | |
| 552 | /* By undefining this, you will only compile the code necessary to load */ | |
| 553 | /* TrueType glyphs without hinting. */ | |
| 554 | /* */ | |
| 555 | /* Do not #undef this macro here, since the build system might */ | |
| 556 | /* define it for certain configurations only. */ | |
| 557 | /* */ | |
| 558 | #define TT_CONFIG_OPTION_BYTECODE_INTERPRETER | |
| 559 | ||
| 560 | ||
| 561 | /*************************************************************************/ | |
| 562 | /* */ | |
| 563 | /* Define TT_CONFIG_OPTION_SUBPIXEL_HINTING if you want to compile */ | |
| 564 | /* EXPERIMENTAL subpixel hinting support into the TrueType driver. This */ | |
| 565 | /* replaces the native TrueType hinting mechanism when anything but */ | |
| 566 | /* FT_RENDER_MODE_MONO is requested. */ | |
| 567 | /* */ | |
| 568 | /* Enabling this causes the TrueType driver to ignore instructions under */ | |
| 569 | /* certain conditions. This is done in accordance with the guide here, */ | |
| 570 | /* with some minor differences: */ | |
| 571 | /* */ | |
| 572 | /* http://www.microsoft.com/typography/cleartype/truetypecleartype.aspx */ | |
| 573 | /* */ | |
| 574 | /* By undefining this, you only compile the code necessary to hint */ | |
| 575 | /* TrueType glyphs with native TT hinting. */ | |
| 576 | /* */ | |
| 577 | /* This option requires TT_CONFIG_OPTION_BYTECODE_INTERPRETER to be */ | |
| 578 | /* defined. */ | |
| 579 | /* */ | |
| 580 | /* #define TT_CONFIG_OPTION_SUBPIXEL_HINTING */ | |
| 581 | ||
| 582 | ||
| 583 | /*************************************************************************/ | |
| 584 | /* */ | |
| 585 | /* If you define TT_CONFIG_OPTION_UNPATENTED_HINTING, a special version */ | |
| 586 | /* of the TrueType bytecode interpreter is used that doesn't implement */ | |
| 587 | /* any of the patented opcodes and algorithms. The patents related to */ | |
| 588 | /* TrueType hinting have expired worldwide since May 2010; this option */ | |
| 589 | /* is now deprecated. */ | |
| 590 | /* */ | |
| 591 | /* Note that the TT_CONFIG_OPTION_UNPATENTED_HINTING macro is *ignored* */ | |
| 592 | /* if you define TT_CONFIG_OPTION_BYTECODE_INTERPRETER; in other words, */ | |
| 593 | /* either define TT_CONFIG_OPTION_BYTECODE_INTERPRETER or */ | |
| 594 | /* TT_CONFIG_OPTION_UNPATENTED_HINTING but not both at the same time. */ | |
| 595 | /* */ | |
| 596 | /* This macro is only useful for a small number of font files (mostly */ | |
| 597 | /* for Asian scripts) that require bytecode interpretation to properly */ | |
| 598 | /* load glyphs. For all other fonts, this produces unpleasant results, */ | |
| 599 | /* thus the unpatented interpreter is never used to load glyphs from */ | |
| 600 | /* TrueType fonts unless one of the following two options is used. */ | |
| 601 | /* */ | |
| 602 | /* - The unpatented interpreter is explicitly activated by the user */ | |
| 603 | /* through the FT_PARAM_TAG_UNPATENTED_HINTING parameter tag */ | |
| 604 | /* when opening the FT_Face. */ | |
| 605 | /* */ | |
| 606 | /* - FreeType detects that the FT_Face corresponds to one of the */ | |
| 607 | /* `trick' fonts (e.g., `Mingliu') it knows about. The font engine */ | |
| 608 | /* contains a hard-coded list of font names and other matching */ | |
| 609 | /* parameters (see function `tt_face_init' in file */ | |
| 610 | /* `src/truetype/ttobjs.c'). */ | |
| 611 | /* */ | |
| 612 | /* Here a sample code snippet for using FT_PARAM_TAG_UNPATENTED_HINTING. */ | |
| 613 | /* */ | |
| 614 | /* { */ | |
| 615 | /* FT_Parameter parameter; */ | |
| 616 | /* FT_Open_Args open_args; */ | |
| 617 | /* */ | |
| 618 | /* */ | |
| 619 | /* parameter.tag = FT_PARAM_TAG_UNPATENTED_HINTING; */ | |
| 620 | /* */ | |
| 621 | /* open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS; */ | |
| 622 | /* open_args.pathname = my_font_pathname; */ | |
| 623 | /* open_args.num_params = 1; */ | |
| 624 | /* open_args.params = ¶meter; */ | |
| 625 | /* */ | |
| 626 | /* error = FT_Open_Face( library, &open_args, index, &face ); */ | |
| 627 | /* ... */ | |
| 628 | /* } */ | |
| 629 | /* */ | |
| 630 | /* #define TT_CONFIG_OPTION_UNPATENTED_HINTING */ | |
| 631 | ||
| 632 | ||
| 633 | /*************************************************************************/ | |
| 634 | /* */ | |
| 635 | /* Define TT_CONFIG_OPTION_INTERPRETER_SWITCH to compile the TrueType */ | |
| 636 | /* bytecode interpreter with a huge switch statement, rather than a call */ | |
| 637 | /* table. This results in smaller and faster code for a number of */ | |
| 638 | /* architectures. */ | |
| 639 | /* */ | |
| 640 | /* Note however that on some compiler/processor combinations, undefining */ | |
| 641 | /* this macro will generate faster, though larger, code. */ | |
| 642 | /* */ | |
| 643 | #define TT_CONFIG_OPTION_INTERPRETER_SWITCH | |
| 644 | ||
| 645 | ||
| 646 | /*************************************************************************/ | |
| 647 | /* */ | |
| 648 | /* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the */ | |
| 649 | /* TrueType glyph loader to use Apple's definition of how to handle */ | |
| 650 | /* component offsets in composite glyphs. */ | |
| 651 | /* */ | |
| 652 | /* Apple and MS disagree on the default behavior of component offsets */ | |
| 653 | /* in composites. Apple says that they should be scaled by the scaling */ | |
| 654 | /* factors in the transformation matrix (roughly, it's more complex) */ | |
| 655 | /* while MS says they should not. OpenType defines two bits in the */ | |
| 656 | /* composite flags array which can be used to disambiguate, but old */ | |
| 657 | /* fonts will not have them. */ | |
| 658 | /* */ | |
| 659 | /* http://www.microsoft.com/typography/otspec/glyf.htm */ | |
| 660 | /* http://fonts.apple.com/TTRefMan/RM06/Chap6glyf.html */ | |
| 661 | /* */ | |
| 662 | #undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED | |
| 663 | ||
| 664 | ||
| 665 | /*************************************************************************/ | |
| 666 | /* */ | |
| 667 | /* Define TT_CONFIG_OPTION_GX_VAR_SUPPORT if you want to include */ | |
| 668 | /* support for Apple's distortable font technology (fvar, gvar, cvar, */ | |
| 669 | /* and avar tables). This has many similarities to Type 1 Multiple */ | |
| 670 | /* Masters support. */ | |
| 671 | /* */ | |
| 672 | #define TT_CONFIG_OPTION_GX_VAR_SUPPORT | |
| 673 | ||
| 674 | ||
| 675 | /*************************************************************************/ | |
| 676 | /* */ | |
| 677 | /* Define TT_CONFIG_OPTION_BDF if you want to include support for */ | |
| 678 | /* an embedded `BDF ' table within SFNT-based bitmap formats. */ | |
| 679 | /* */ | |
| 680 | #define TT_CONFIG_OPTION_BDF | |
| 681 | ||
| 682 | ||
| 683 | /*************************************************************************/ | |
| 684 | /*************************************************************************/ | |
| 685 | /**** ****/ | |
| 686 | /**** T Y P E 1 D R I V E R C O N F I G U R A T I O N ****/ | |
| 687 | /**** ****/ | |
| 688 | /*************************************************************************/ | |
| 689 | /*************************************************************************/ | |
| 690 | ||
| 691 | ||
| 692 | /*************************************************************************/ | |
| 693 | /* */ | |
| 694 | /* T1_MAX_DICT_DEPTH is the maximum depth of nest dictionaries and */ | |
| 695 | /* arrays in the Type 1 stream (see t1load.c). A minimum of 4 is */ | |
| 696 | /* required. */ | |
| 697 | /* */ | |
| 698 | #define T1_MAX_DICT_DEPTH 5 | |
| 699 | ||
| 700 | ||
| 701 | /*************************************************************************/ | |
| 702 | /* */ | |
| 703 | /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */ | |
| 704 | /* calls during glyph loading. */ | |
| 705 | /* */ | |
| 706 | #define T1_MAX_SUBRS_CALLS 16 | |
| 707 | ||
| 708 | ||
| 709 | /*************************************************************************/ | |
| 710 | /* */ | |
| 711 | /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */ | |
| 712 | /* minimum of 16 is required. */ | |
| 713 | /* */ | |
| 714 | /* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256. */ | |
| 715 | /* */ | |
| 716 | #define T1_MAX_CHARSTRINGS_OPERANDS 256 | |
| 717 | ||
| 718 | ||
| 719 | /*************************************************************************/ | |
| 720 | /* */ | |
| 721 | /* Define this configuration macro if you want to prevent the */ | |
| 722 | /* compilation of `t1afm', which is in charge of reading Type 1 AFM */ | |
| 723 | /* files into an existing face. Note that if set, the T1 driver will be */ | |
| 724 | /* unable to produce kerning distances. */ | |
| 725 | /* */ | |
| 726 | #undef T1_CONFIG_OPTION_NO_AFM | |
| 727 | ||
| 728 | ||
| 729 | /*************************************************************************/ | |
| 730 | /* */ | |
| 731 | /* Define this configuration macro if you want to prevent the */ | |
| 732 | /* compilation of the Multiple Masters font support in the Type 1 */ | |
| 733 | /* driver. */ | |
| 734 | /* */ | |
| 735 | #undef T1_CONFIG_OPTION_NO_MM_SUPPORT | |
| 736 | ||
| 737 | ||
| 738 | /*************************************************************************/ | |
| 739 | /*************************************************************************/ | |
| 740 | /**** ****/ | |
| 741 | /**** 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 ****/ | |
| 742 | /**** ****/ | |
| 743 | /*************************************************************************/ | |
| 744 | /*************************************************************************/ | |
| 745 | ||
| 746 | ||
| 747 | /*************************************************************************/ | |
| 748 | /* */ | |
| 749 | /* Compile autofit module with CJK (Chinese, Japanese, Korean) script */ | |
| 750 | /* support. */ | |
| 751 | /* */ | |
| 752 | #define AF_CONFIG_OPTION_CJK | |
| 753 | ||
| 754 | /*************************************************************************/ | |
| 755 | /* */ | |
| 756 | /* Compile autofit module with Indic script support. */ | |
| 757 | /* */ | |
| 758 | #define AF_CONFIG_OPTION_INDIC | |
| 759 | ||
| 760 | /*************************************************************************/ | |
| 761 | /* */ | |
| 762 | /* Compile autofit module with warp hinting. The idea of the warping */ | |
| 763 | /* code is to slightly scale and shift a glyph within a single dimension */ | |
| 764 | /* so that as much of its segments are aligned (more or less) on the */ | |
| 765 | /* grid. To find out the optimal scaling and shifting value, various */ | |
| 766 | /* parameter combinations are tried and scored. */ | |
| 767 | /* */ | |
| 768 | /* This experimental option is only active if the render mode is */ | |
| 769 | /* FT_RENDER_MODE_LIGHT. */ | |
| 770 | /* */ | |
| 771 | /* #define AF_CONFIG_OPTION_USE_WARPER */ | |
| 772 | ||
| 773 | /* */ | |
| 774 | ||
| 775 | ||
| 776 | /* | |
| 777 | * Define this variable if you want to keep the layout of internal | |
| 778 | * structures that was used prior to FreeType 2.2. This also compiles in | |
| 779 | * a few obsolete functions to avoid linking problems on typical Unix | |
| 780 | * distributions. | |
| 781 | * | |
| 782 | * For embedded systems or building a new distribution from scratch, it | |
| 783 | * is recommended to disable the macro since it reduces the library's code | |
| 784 | * size and activates a few memory-saving optimizations as well. | |
| 785 | */ | |
| 786 | /* #define FT_CONFIG_OPTION_OLD_INTERNALS */ | |
| 787 | ||
| 788 | ||
| 789 | /* | |
| 790 | * To detect legacy cache-lookup call from a rogue client (<= 2.1.7), | |
| 791 | * we restrict the number of charmaps in a font. The current API of | |
| 792 | * FTC_CMapCache_Lookup() takes cmap_index & charcode, but old API | |
| 793 | * takes charcode only. To determine the passed value is for cmap_index | |
| 794 | * or charcode, the possible cmap_index is restricted not to exceed | |
| 795 | * the minimum possible charcode by a rogue client. It is also very | |
| 796 | * unlikely that a rogue client is interested in Unicode values 0 to 15. | |
| 797 | * | |
| 798 | * NOTE: The original threshold was 4 deduced from popular number of | |
| 799 | * cmap subtables in UCS-4 TrueType fonts, but now it is not | |
| 800 | * irregular for OpenType fonts to have more than 4 subtables, | |
| 801 | * because variation selector subtables are available for Apple | |
| 802 | * and Microsoft platforms. | |
| 803 | */ | |
| 804 | ||
| 805 | #ifdef FT_CONFIG_OPTION_OLD_INTERNALS | |
| 806 | #define FT_MAX_CHARMAP_CACHEABLE 15 | |
| 807 | #endif | |
| 808 | ||
| 809 | ||
| 810 | /* | |
| 811 | * This macro is defined if either unpatented or native TrueType | |
| 812 | * hinting is requested by the definitions above. | |
| 813 | */ | |
| 814 | #ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER | |
| 815 | #define TT_USE_BYTECODE_INTERPRETER | |
| 816 | #undef TT_CONFIG_OPTION_UNPATENTED_HINTING | |
| 817 | #elif defined TT_CONFIG_OPTION_UNPATENTED_HINTING | |
| 818 | #define TT_USE_BYTECODE_INTERPRETER | |
| 819 | #endif | |
| 820 | ||
| 821 | FT_END_HEADER | |
| 822 | ||
| 823 | ||
| 824 | #endif /* __FTOPTION_H__ */ | |
| 825 | ||
| 826 | ||
| 827 | /* END */ |