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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 /* PNG bitmap support. */ | |
| 220 /* */ | |
| 221 /* FreeType now handles loading color bitmap glyphs in the PNG format. */ | |
| 222 /* This requires help from the external libpng library. Uncompressed */ | |
| 223 /* color bitmaps do not need any external libraries and will be */ | |
| 224 /* supported regardless of this configuration. */ | |
| 225 /* */ | |
| 226 /* Define this macro if you want to enable this `feature'. */ | |
| 227 /* */ | |
| 228 #define FT_CONFIG_OPTION_USE_PNG | |
| 229 | |
| 230 | |
| 231 /*************************************************************************/ | |
| 232 /* */ | |
| 233 /* DLL export compilation */ | |
| 234 /* */ | |
| 235 /* When compiling FreeType as a DLL, some systems/compilers need a */ | |
| 236 /* special keyword in front OR after the return type of function */ | |
| 237 /* declarations. */ | |
| 238 /* */ | |
| 239 /* Two macros are used within the FreeType source code to define */ | |
| 240 /* exported library functions: FT_EXPORT and FT_EXPORT_DEF. */ | |
| 241 /* */ | |
| 242 /* FT_EXPORT( return_type ) */ | |
| 243 /* */ | |
| 244 /* is used in a function declaration, as in */ | |
| 245 /* */ | |
| 246 /* FT_EXPORT( FT_Error ) */ | |
| 247 /* FT_Init_FreeType( FT_Library* alibrary ); */ | |
| 248 /* */ | |
| 249 /* */ | |
| 250 /* FT_EXPORT_DEF( return_type ) */ | |
| 251 /* */ | |
| 252 /* is used in a function definition, as in */ | |
| 253 /* */ | |
| 254 /* FT_EXPORT_DEF( FT_Error ) */ | |
| 255 /* FT_Init_FreeType( FT_Library* alibrary ) */ | |
| 256 /* { */ | |
| 257 /* ... some code ... */ | |
| 258 /* return FT_Err_Ok; */ | |
| 259 /* } */ | |
| 260 /* */ | |
| 261 /* You can provide your own implementation of FT_EXPORT and */ | |
| 262 /* FT_EXPORT_DEF here if you want. If you leave them undefined, they */ | |
| 263 /* will be later automatically defined as `extern return_type' to */ | |
| 264 /* allow normal compilation. */ | |
| 265 /* */ | |
| 266 /* Do not #undef these macros here since the build system might define */ | |
| 267 /* them for certain configurations only. */ | |
| 268 /* */ | |
| 269 /* #define FT_EXPORT(x) extern x */ | |
| 270 /* #define FT_EXPORT_DEF(x) x */ | |
| 271 | |
| 272 | |
| 273 /*************************************************************************/ | |
| 274 /* */ | |
| 275 /* Glyph Postscript Names handling */ | |
| 276 /* */ | |
| 277 /* By default, FreeType 2 is compiled with the `psnames' module. This */ | |
| 278 /* module is in charge of converting a glyph name string into a */ | |
| 279 /* Unicode value, or return a Macintosh standard glyph name for the */ | |
| 280 /* use with the TrueType `post' table. */ | |
| 281 /* */ | |
| 282 /* Undefine this macro if you do not want `psnames' compiled in your */ | |
| 283 /* build of FreeType. This has the following effects: */ | |
| 284 /* */ | |
| 285 /* - The TrueType driver will provide its own set of glyph names, */ | |
| 286 /* if you build it to support postscript names in the TrueType */ | |
| 287 /* `post' table. */ | |
| 288 /* */ | |
| 289 /* - The Type 1 driver will not be able to synthesize a Unicode */ | |
| 290 /* charmap out of the glyphs found in the fonts. */ | |
| 291 /* */ | |
| 292 /* You would normally undefine this configuration macro when building */ | |
| 293 /* a version of FreeType that doesn't contain a Type 1 or CFF driver. */ | |
| 294 /* */ | |
| 295 #define FT_CONFIG_OPTION_POSTSCRIPT_NAMES | |
| 296 | |
| 297 | |
| 298 /*************************************************************************/ | |
| 299 /* */ | |
| 300 /* Postscript Names to Unicode Values support */ | |
| 301 /* */ | |
| 302 /* By default, FreeType 2 is built with the `PSNames' module compiled */ | |
| 303 /* in. Among other things, the module is used to convert a glyph name */ | |
| 304 /* into a Unicode value. This is especially useful in order to */ | |
| 305 /* synthesize on the fly a Unicode charmap from the CFF/Type 1 driver */ | |
| 306 /* through a big table named the `Adobe Glyph List' (AGL). */ | |
| 307 /* */ | |
| 308 /* Undefine this macro if you do not want the Adobe Glyph List */ | |
| 309 /* compiled in your `PSNames' module. The Type 1 driver will not be */ | |
| 310 /* able to synthesize a Unicode charmap out of the glyphs found in the */ | |
| 311 /* fonts. */ | |
| 312 /* */ | |
| 313 #define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST | |
| 314 | |
| 315 | |
| 316 /*************************************************************************/ | |
| 317 /* */ | |
| 318 /* Support for Mac fonts */ | |
| 319 /* */ | |
| 320 /* Define this macro if you want support for outline fonts in Mac */ | |
| 321 /* format (mac dfont, mac resource, macbinary containing a mac */ | |
| 322 /* resource) on non-Mac platforms. */ | |
| 323 /* */ | |
| 324 /* Note that the `FOND' resource isn't checked. */ | |
| 325 /* */ | |
| 326 #define FT_CONFIG_OPTION_MAC_FONTS | |
| 327 | |
| 328 | |
| 329 /*************************************************************************/ | |
| 330 /* */ | |
| 331 /* Guessing methods to access embedded resource forks */ | |
| 332 /* */ | |
| 333 /* Enable extra Mac fonts support on non-Mac platforms (e.g. */ | |
| 334 /* GNU/Linux). */ | |
| 335 /* */ | |
| 336 /* Resource forks which include fonts data are stored sometimes in */ | |
| 337 /* locations which users or developers don't expected. In some cases, */ | |
| 338 /* resource forks start with some offset from the head of a file. In */ | |
| 339 /* other cases, the actual resource fork is stored in file different */ | |
| 340 /* from what the user specifies. If this option is activated, */ | |
| 341 /* FreeType tries to guess whether such offsets or different file */ | |
| 342 /* names must be used. */ | |
| 343 /* */ | |
| 344 /* Note that normal, direct access of resource forks is controlled via */ | |
| 345 /* the FT_CONFIG_OPTION_MAC_FONTS option. */ | |
| 346 /* */ | |
| 347 #ifdef FT_CONFIG_OPTION_MAC_FONTS | |
| 348 #define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK | |
| 349 #endif | |
| 350 | |
| 351 | |
| 352 /*************************************************************************/ | |
| 353 /* */ | |
| 354 /* Allow the use of FT_Incremental_Interface to load typefaces that */ | |
| 355 /* contain no glyph data, but supply it via a callback function. */ | |
| 356 /* This is required by clients supporting document formats which */ | |
| 357 /* supply font data incrementally as the document is parsed, such */ | |
| 358 /* as the Ghostscript interpreter for the PostScript language. */ | |
| 359 /* */ | |
| 360 #define FT_CONFIG_OPTION_INCREMENTAL | |
| 361 | |
| 362 | |
| 363 /*************************************************************************/ | |
| 364 /* */ | |
| 365 /* The size in bytes of the render pool used by the scan-line converter */ | |
| 366 /* to do all of its work. */ | |
| 367 /* */ | |
| 368 /* This must be greater than 4KByte if you use FreeType to rasterize */ | |
| 369 /* glyphs; otherwise, you may set it to zero to avoid unnecessary */ | |
| 370 /* allocation of the render pool. */ | |
| 371 /* */ | |
| 372 #define FT_RENDER_POOL_SIZE 16384L | |
| 373 | |
| 374 | |
| 375 /*************************************************************************/ | |
| 376 /* */ | |
| 377 /* FT_MAX_MODULES */ | |
| 378 /* */ | |
| 379 /* The maximum number of modules that can be registered in a single */ | |
| 380 /* FreeType library object. 32 is the default. */ | |
| 381 /* */ | |
| 382 #define FT_MAX_MODULES 32 | |
| 383 | |
| 384 | |
| 385 /*************************************************************************/ | |
| 386 /* */ | |
| 387 /* Debug level */ | |
| 388 /* */ | |
| 389 /* FreeType can be compiled in debug or trace mode. In debug mode, */ | |
| 390 /* errors are reported through the `ftdebug' component. In trace */ | |
| 391 /* mode, additional messages are sent to the standard output during */ | |
| 392 /* execution. */ | |
| 393 /* */ | |
| 394 /* Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode. */ | |
| 395 /* Define FT_DEBUG_LEVEL_TRACE to build it in trace mode. */ | |
| 396 /* */ | |
| 397 /* Don't define any of these macros to compile in `release' mode! */ | |
| 398 /* */ | |
| 399 /* Do not #undef these macros here since the build system might define */ | |
| 400 /* them for certain configurations only. */ | |
| 401 /* */ | |
| 402 /* #define FT_DEBUG_LEVEL_ERROR */ | |
| 403 /* #define FT_DEBUG_LEVEL_TRACE */ | |
| 404 | |
| 405 | |
| 406 /*************************************************************************/ | |
| 407 /* */ | |
| 408 /* Autofitter debugging */ | |
| 409 /* */ | |
| 410 /* If FT_DEBUG_AUTOFIT is defined, FreeType provides some means to */ | |
| 411 /* control the autofitter behaviour for debugging purposes with global */ | |
| 412 /* boolean variables (consequently, you should *never* enable this */ | |
| 413 /* while compiling in `release' mode): */ | |
| 414 /* */ | |
| 415 /* _af_debug_disable_horz_hints */ | |
| 416 /* _af_debug_disable_vert_hints */ | |
| 417 /* _af_debug_disable_blue_hints */ | |
| 418 /* */ | |
| 419 /* Additionally, the following functions provide dumps of various */ | |
| 420 /* internal autofit structures to stdout (using `printf'): */ | |
| 421 /* */ | |
| 422 /* af_glyph_hints_dump_points */ | |
| 423 /* af_glyph_hints_dump_segments */ | |
| 424 /* af_glyph_hints_dump_edges */ | |
| 425 /* */ | |
| 426 /* As an argument, they use another global variable: */ | |
| 427 /* */ | |
| 428 /* _af_debug_hints */ | |
| 429 /* */ | |
| 430 /* Please have a look at the `ftgrid' demo program to see how those */ | |
| 431 /* variables and macros should be used. */ | |
| 432 /* */ | |
| 433 /* Do not #undef these macros here since the build system might define */ | |
| 434 /* them for certain configurations only. */ | |
| 435 /* */ | |
| 436 /* #define FT_DEBUG_AUTOFIT */ | |
| 437 | |
| 438 | |
| 439 /*************************************************************************/ | |
| 440 /* */ | |
| 441 /* Memory Debugging */ | |
| 442 /* */ | |
| 443 /* FreeType now comes with an integrated memory debugger that is */ | |
| 444 /* capable of detecting simple errors like memory leaks or double */ | |
| 445 /* deletes. To compile it within your build of the library, you */ | |
| 446 /* should define FT_DEBUG_MEMORY here. */ | |
| 447 /* */ | |
| 448 /* Note that the memory debugger is only activated at runtime when */ | |
| 449 /* when the _environment_ variable `FT2_DEBUG_MEMORY' is defined also! */ | |
| 450 /* */ | |
| 451 /* Do not #undef this macro here since the build system might define */ | |
| 452 /* it for certain configurations only. */ | |
| 453 /* */ | |
| 454 /* #define FT_DEBUG_MEMORY */ | |
| 455 | |
| 456 | |
| 457 /*************************************************************************/ | |
| 458 /* */ | |
| 459 /* Module errors */ | |
| 460 /* */ | |
| 461 /* If this macro is set (which is _not_ the default), the higher byte */ | |
| 462 /* of an error code gives the module in which the error has occurred, */ | |
| 463 /* while the lower byte is the real error code. */ | |
| 464 /* */ | |
| 465 /* Setting this macro makes sense for debugging purposes only, since */ | |
| 466 /* it would break source compatibility of certain programs that use */ | |
| 467 /* FreeType 2. */ | |
| 468 /* */ | |
| 469 /* More details can be found in the files ftmoderr.h and fterrors.h. */ | |
| 470 /* */ | |
| 471 #undef FT_CONFIG_OPTION_USE_MODULE_ERRORS | |
| 472 | |
| 473 | |
| 474 /*************************************************************************/ | |
| 475 /* */ | |
| 476 /* Position Independent Code */ | |
| 477 /* */ | |
| 478 /* If this macro is set (which is _not_ the default), FreeType2 will */ | |
| 479 /* avoid creating constants that require address fixups. Instead the */ | |
| 480 /* constants will be moved into a struct and additional intialization */ | |
| 481 /* code will be used. */ | |
| 482 /* */ | |
| 483 /* Setting this macro is needed for systems that prohibit address */ | |
| 484 /* fixups, such as BREW. */ | |
| 485 /* */ | |
| 486 /* #define FT_CONFIG_OPTION_PIC */ | |
| 487 | |
| 488 | |
| 489 /*************************************************************************/ | |
| 490 /*************************************************************************/ | |
| 491 /**** ****/ | |
| 492 /**** S F N T D R I V E R C O N F I G U R A T I O N ****/ | |
| 493 /**** ****/ | |
| 494 /*************************************************************************/ | |
| 495 /*************************************************************************/ | |
| 496 | |
| 497 | |
| 498 /*************************************************************************/ | |
| 499 /* */ | |
| 500 /* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support */ | |
| 501 /* embedded bitmaps in all formats using the SFNT module (namely */ | |
| 502 /* TrueType & OpenType). */ | |
| 503 /* */ | |
| 504 #define TT_CONFIG_OPTION_EMBEDDED_BITMAPS | |
| 505 | |
| 506 | |
| 507 /*************************************************************************/ | |
| 508 /* */ | |
| 509 /* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to */ | |
| 510 /* load and enumerate the glyph Postscript names in a TrueType or */ | |
| 511 /* OpenType file. */ | |
| 512 /* */ | |
| 513 /* Note that when you do not compile the `PSNames' module by undefining */ | |
| 514 /* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will */ | |
| 515 /* contain additional code used to read the PS Names table from a font. */ | |
| 516 /* */ | |
| 517 /* (By default, the module uses `PSNames' to extract glyph names.) */ | |
| 518 /* */ | |
| 519 #define TT_CONFIG_OPTION_POSTSCRIPT_NAMES | |
| 520 | |
| 521 | |
| 522 /*************************************************************************/ | |
| 523 /* */ | |
| 524 /* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to */ | |
| 525 /* access the internal name table in a SFNT-based format like TrueType */ | |
| 526 /* or OpenType. The name table contains various strings used to */ | |
| 527 /* describe the font, like family name, copyright, version, etc. It */ | |
| 528 /* does not contain any glyph name though. */ | |
| 529 /* */ | |
| 530 /* Accessing SFNT names is done through the functions declared in */ | |
| 531 /* `freetype/ftsnames.h'. */ | |
| 532 /* */ | |
| 533 #define TT_CONFIG_OPTION_SFNT_NAMES | |
| 534 | |
| 535 | |
| 536 /*************************************************************************/ | |
| 537 /* */ | |
| 538 /* TrueType CMap support */ | |
| 539 /* */ | |
| 540 /* Here you can fine-tune which TrueType CMap table format shall be */ | |
| 541 /* supported. */ | |
| 542 #define TT_CONFIG_CMAP_FORMAT_0 | |
| 543 #define TT_CONFIG_CMAP_FORMAT_2 | |
| 544 #define TT_CONFIG_CMAP_FORMAT_4 | |
| 545 #define TT_CONFIG_CMAP_FORMAT_6 | |
| 546 #define TT_CONFIG_CMAP_FORMAT_8 | |
| 547 #define TT_CONFIG_CMAP_FORMAT_10 | |
| 548 #define TT_CONFIG_CMAP_FORMAT_12 | |
| 549 #define TT_CONFIG_CMAP_FORMAT_13 | |
| 550 #define TT_CONFIG_CMAP_FORMAT_14 | |
| 551 | |
| 552 | |
| 553 /*************************************************************************/ | |
| 554 /*************************************************************************/ | |
| 555 /**** ****/ | |
| 556 /**** 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 ****/ | |
| 557 /**** ****/ | |
| 558 /*************************************************************************/ | |
| 559 /*************************************************************************/ | |
| 560 | |
| 561 /*************************************************************************/ | |
| 562 /* */ | |
| 563 /* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile */ | |
| 564 /* a bytecode interpreter in the TrueType driver. */ | |
| 565 /* */ | |
| 566 /* By undefining this, you will only compile the code necessary to load */ | |
| 567 /* TrueType glyphs without hinting. */ | |
| 568 /* */ | |
| 569 /* Do not #undef this macro here, since the build system might */ | |
| 570 /* define it for certain configurations only. */ | |
| 571 /* */ | |
| 572 #define TT_CONFIG_OPTION_BYTECODE_INTERPRETER | |
| 573 | |
| 574 | |
| 575 /*************************************************************************/ | |
| 576 /* */ | |
| 577 /* Define TT_CONFIG_OPTION_SUBPIXEL_HINTING if you want to compile */ | |
| 578 /* EXPERIMENTAL subpixel hinting support into the TrueType driver. This */ | |
| 579 /* replaces the native TrueType hinting mechanism when anything but */ | |
| 580 /* FT_RENDER_MODE_MONO is requested. */ | |
| 581 /* */ | |
| 582 /* Enabling this causes the TrueType driver to ignore instructions under */ | |
| 583 /* certain conditions. This is done in accordance with the guide here, */ | |
| 584 /* with some minor differences: */ | |
| 585 /* */ | |
| 586 /* http://www.microsoft.com/typography/cleartype/truetypecleartype.aspx */ | |
| 587 /* */ | |
| 588 /* By undefining this, you only compile the code necessary to hint */ | |
| 589 /* TrueType glyphs with native TT hinting. */ | |
| 590 /* */ | |
| 591 /* This option requires TT_CONFIG_OPTION_BYTECODE_INTERPRETER to be */ | |
| 592 /* defined. */ | |
| 593 /* */ | |
| 594 /* #define TT_CONFIG_OPTION_SUBPIXEL_HINTING */ | |
| 595 | |
| 596 | |
| 597 /*************************************************************************/ | |
| 598 /* */ | |
| 599 /* If you define TT_CONFIG_OPTION_UNPATENTED_HINTING, a special version */ | |
| 600 /* of the TrueType bytecode interpreter is used that doesn't implement */ | |
| 601 /* any of the patented opcodes and algorithms. The patents related to */ | |
| 602 /* TrueType hinting have expired worldwide since May 2010; this option */ | |
| 603 /* is now deprecated. */ | |
| 604 /* */ | |
| 605 /* Note that the TT_CONFIG_OPTION_UNPATENTED_HINTING macro is *ignored* */ | |
| 606 /* if you define TT_CONFIG_OPTION_BYTECODE_INTERPRETER; in other words, */ | |
| 607 /* either define TT_CONFIG_OPTION_BYTECODE_INTERPRETER or */ | |
| 608 /* TT_CONFIG_OPTION_UNPATENTED_HINTING but not both at the same time. */ | |
| 609 /* */ | |
| 610 /* This macro is only useful for a small number of font files (mostly */ | |
| 611 /* for Asian scripts) that require bytecode interpretation to properly */ | |
| 612 /* load glyphs. For all other fonts, this produces unpleasant results, */ | |
| 613 /* thus the unpatented interpreter is never used to load glyphs from */ | |
| 614 /* TrueType fonts unless one of the following two options is used. */ | |
| 615 /* */ | |
| 616 /* - The unpatented interpreter is explicitly activated by the user */ | |
| 617 /* through the FT_PARAM_TAG_UNPATENTED_HINTING parameter tag */ | |
| 618 /* when opening the FT_Face. */ | |
| 619 /* */ | |
| 620 /* - FreeType detects that the FT_Face corresponds to one of the */ | |
| 621 /* `trick' fonts (e.g., `Mingliu') it knows about. The font engine */ | |
| 622 /* contains a hard-coded list of font names and other matching */ | |
| 623 /* parameters (see function `tt_face_init' in file */ | |
| 624 /* `src/truetype/ttobjs.c'). */ | |
| 625 /* */ | |
| 626 /* Here a sample code snippet for using FT_PARAM_TAG_UNPATENTED_HINTING. */ | |
| 627 /* */ | |
| 628 /* { */ | |
| 629 /* FT_Parameter parameter; */ | |
| 630 /* FT_Open_Args open_args; */ | |
| 631 /* */ | |
| 632 /* */ | |
| 633 /* parameter.tag = FT_PARAM_TAG_UNPATENTED_HINTING; */ | |
| 634 /* */ | |
| 635 /* open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS; */ | |
| 636 /* open_args.pathname = my_font_pathname; */ | |
| 637 /* open_args.num_params = 1; */ | |
| 638 /* open_args.params = ¶meter; */ | |
| 639 /* */ | |
| 640 /* error = FT_Open_Face( library, &open_args, index, &face ); */ | |
| 641 /* ... */ | |
| 642 /* } */ | |
| 643 /* */ | |
| 644 /* #define TT_CONFIG_OPTION_UNPATENTED_HINTING */ | |
| 645 | |
| 646 | |
| 647 /*************************************************************************/ | |
| 648 /* */ | |
| 649 /* Define TT_CONFIG_OPTION_INTERPRETER_SWITCH to compile the TrueType */ | |
| 650 /* bytecode interpreter with a huge switch statement, rather than a call */ | |
| 651 /* table. This results in smaller and faster code for a number of */ | |
| 652 /* architectures. */ | |
| 653 /* */ | |
| 654 /* Note however that on some compiler/processor combinations, undefining */ | |
| 655 /* this macro will generate faster, though larger, code. */ | |
| 656 /* */ | |
| 657 #define TT_CONFIG_OPTION_INTERPRETER_SWITCH | |
| 658 | |
| 659 | |
| 660 /*************************************************************************/ | |
| 661 /* */ | |
| 662 /* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the */ | |
| 663 /* TrueType glyph loader to use Apple's definition of how to handle */ | |
| 664 /* component offsets in composite glyphs. */ | |
| 665 /* */ | |
| 666 /* Apple and MS disagree on the default behavior of component offsets */ | |
| 667 /* in composites. Apple says that they should be scaled by the scaling */ | |
| 668 /* factors in the transformation matrix (roughly, it's more complex) */ | |
| 669 /* while MS says they should not. OpenType defines two bits in the */ | |
| 670 /* composite flags array which can be used to disambiguate, but old */ | |
| 671 /* fonts will not have them. */ | |
| 672 /* */ | |
| 673 /* http://www.microsoft.com/typography/otspec/glyf.htm */ | |
| 674 /* http://fonts.apple.com/TTRefMan/RM06/Chap6glyf.html */ | |
| 675 /* */ | |
| 676 #undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED | |
| 677 | |
| 678 | |
| 679 /*************************************************************************/ | |
| 680 /* */ | |
| 681 /* Define TT_CONFIG_OPTION_GX_VAR_SUPPORT if you want to include */ | |
| 682 /* support for Apple's distortable font technology (fvar, gvar, cvar, */ | |
| 683 /* and avar tables). This has many similarities to Type 1 Multiple */ | |
| 684 /* Masters support. */ | |
| 685 /* */ | |
| 686 #define TT_CONFIG_OPTION_GX_VAR_SUPPORT | |
| 687 | |
| 688 | |
| 689 /*************************************************************************/ | |
| 690 /* */ | |
| 691 /* Define TT_CONFIG_OPTION_BDF if you want to include support for */ | |
| 692 /* an embedded `BDF ' table within SFNT-based bitmap formats. */ | |
| 693 /* */ | |
| 694 #define TT_CONFIG_OPTION_BDF | |
| 695 | |
| 696 | |
| 697 /*************************************************************************/ | |
| 698 /*************************************************************************/ | |
| 699 /**** ****/ | |
| 700 /**** T Y P E 1 D R I V E R C O N F I G U R A T I O N ****/ | |
| 701 /**** ****/ | |
| 702 /*************************************************************************/ | |
| 703 /*************************************************************************/ | |
| 704 | |
| 705 | |
| 706 /*************************************************************************/ | |
| 707 /* */ | |
| 708 /* T1_MAX_DICT_DEPTH is the maximum depth of nest dictionaries and */ | |
| 709 /* arrays in the Type 1 stream (see t1load.c). A minimum of 4 is */ | |
| 710 /* required. */ | |
| 711 /* */ | |
| 712 #define T1_MAX_DICT_DEPTH 5 | |
| 713 | |
| 714 | |
| 715 /*************************************************************************/ | |
| 716 /* */ | |
| 717 /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */ | |
| 718 /* calls during glyph loading. */ | |
| 719 /* */ | |
| 720 #define T1_MAX_SUBRS_CALLS 16 | |
| 721 | |
| 722 | |
| 723 /*************************************************************************/ | |
| 724 /* */ | |
| 725 /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */ | |
| 726 /* minimum of 16 is required. */ | |
| 727 /* */ | |
| 728 /* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256. */ | |
| 729 /* */ | |
| 730 #define T1_MAX_CHARSTRINGS_OPERANDS 256 | |
| 731 | |
| 732 | |
| 733 /*************************************************************************/ | |
| 734 /* */ | |
| 735 /* Define this configuration macro if you want to prevent the */ | |
| 736 /* compilation of `t1afm', which is in charge of reading Type 1 AFM */ | |
| 737 /* files into an existing face. Note that if set, the T1 driver will be */ | |
| 738 /* unable to produce kerning distances. */ | |
| 739 /* */ | |
| 740 #undef T1_CONFIG_OPTION_NO_AFM | |
| 741 | |
| 742 | |
| 743 /*************************************************************************/ | |
| 744 /* */ | |
| 745 /* Define this configuration macro if you want to prevent the */ | |
| 746 /* compilation of the Multiple Masters font support in the Type 1 */ | |
| 747 /* driver. */ | |
| 748 /* */ | |
| 749 #undef T1_CONFIG_OPTION_NO_MM_SUPPORT | |
| 750 | |
| 751 | |
| 752 /*************************************************************************/ | |
| 753 /*************************************************************************/ | |
| 754 /**** ****/ | |
| 755 /**** C F F D R I V E R C O N F I G U R A T I O N ****/ | |
| 756 /**** ****/ | |
| 757 /*************************************************************************/ | |
| 758 /*************************************************************************/ | |
| 759 | |
| 760 | |
| 761 /*************************************************************************/ | |
| 762 /* */ | |
| 763 /* CFF_CONFIG_OPTION_OLD_ENGINE controls whether the pre-Adobe CFF */ | |
| 764 /* engine gets compiled into FreeType. If defined, it is possible to */ | |
| 765 /* switch between the two engines using the `hinting-engine' property of */ | |
| 766 /* the cff driver module. */ | |
| 767 /* */ | |
| 768 /* #define CFF_CONFIG_OPTION_OLD_ENGINE */ | |
| 769 | |
| 770 | |
| 771 /*************************************************************************/ | |
| 772 /*************************************************************************/ | |
| 773 /**** ****/ | |
| 774 /**** 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 ****/ | |
| 775 /**** ****/ | |
| 776 /*************************************************************************/ | |
| 777 /*************************************************************************/ | |
| 778 | |
| 779 | |
| 780 /*************************************************************************/ | |
| 781 /* */ | |
| 782 /* Compile autofit module with CJK (Chinese, Japanese, Korean) script */ | |
| 783 /* support. */ | |
| 784 /* */ | |
| 785 #define AF_CONFIG_OPTION_CJK | |
| 786 | |
| 787 /*************************************************************************/ | |
| 788 /* */ | |
| 789 /* Compile autofit module with Indic script support. */ | |
| 790 /* */ | |
| 791 #define AF_CONFIG_OPTION_INDIC | |
| 792 | |
| 793 /*************************************************************************/ | |
| 794 /* */ | |
| 795 /* Compile autofit module with warp hinting. The idea of the warping */ | |
| 796 /* code is to slightly scale and shift a glyph within a single dimension */ | |
| 797 /* so that as much of its segments are aligned (more or less) on the */ | |
| 798 /* grid. To find out the optimal scaling and shifting value, various */ | |
| 799 /* parameter combinations are tried and scored. */ | |
| 800 /* */ | |
| 801 /* This experimental option is only active if the render mode is */ | |
| 802 /* FT_RENDER_MODE_LIGHT. */ | |
| 803 /* */ | |
| 804 /* #define AF_CONFIG_OPTION_USE_WARPER */ | |
| 805 | |
| 806 /* */ | |
| 807 | |
| 808 | |
| 809 /* | |
| 810 * This macro is obsolete. Support has been removed in FreeType | |
| 811 * version 2.5. | |
| 812 */ | |
| 813 /* #define FT_CONFIG_OPTION_OLD_INTERNALS */ | |
| 814 | |
| 815 | |
| 816 /* | |
| 817 * This macro is defined if either unpatented or native TrueType | |
| 818 * hinting is requested by the definitions above. | |
| 819 */ | |
| 820 #ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER | |
| 821 #define TT_USE_BYTECODE_INTERPRETER | |
| 822 #undef TT_CONFIG_OPTION_UNPATENTED_HINTING | |
| 823 #elif defined TT_CONFIG_OPTION_UNPATENTED_HINTING | |
| 824 #define TT_USE_BYTECODE_INTERPRETER | |
| 825 #endif | |
| 826 | |
| 827 FT_END_HEADER | |
| 828 | |
| 829 | |
| 830 #endif /* __FTOPTION_H__ */ | |
| 831 | |
| 832 | |
| 833 /* END */ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 19625006:
Update freetype to version 2.5.0.1 when building it from source. (Closed)
Base URL: https://skia.googlecode.com/svn/trunk