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00001 /***************************************************************************/ 00002 /* */ 00003 /* ftoption.h (for development) */ 00004 /* */ 00005 /* User-selectable configuration macros (specification only). */ 00006 /* */ 00007 /* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */ 00008 /* 2010 by */ 00009 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ 00010 /* */ 00011 /* This file is part of the FreeType project, and may only be used, */ 00012 /* modified, and distributed under the terms of the FreeType project */ 00013 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ 00014 /* this file you indicate that you have read the license and */ 00015 /* understand and accept it fully. */ 00016 /* */ 00017 /***************************************************************************/ 00018 00019 00020 #ifndef __FTOPTION_H__ 00021 #define __FTOPTION_H__ 00022 00023 00024 #include <ft2build.h> 00025 00026 00027 FT_BEGIN_HEADER 00028 00029 /*************************************************************************/ 00030 /* */ 00031 /* USER-SELECTABLE CONFIGURATION MACROS */ 00032 /* */ 00033 /* This file contains the default configuration macro definitions for */ 00034 /* a standard build of the FreeType library. There are three ways to */ 00035 /* use this file to build project-specific versions of the library: */ 00036 /* */ 00037 /* - You can modify this file by hand, but this is not recommended in */ 00038 /* cases where you would like to build several versions of the */ 00039 /* library from a single source directory. */ 00040 /* */ 00041 /* - You can put a copy of this file in your build directory, more */ 00042 /* precisely in `$BUILD/freetype/config/ftoption.h', where `$BUILD' */ 00043 /* is the name of a directory that is included _before_ the FreeType */ 00044 /* include path during compilation. */ 00045 /* */ 00046 /* The default FreeType Makefiles and Jamfiles use the build */ 00047 /* directory `builds/<system>' by default, but you can easily change */ 00048 /* that for your own projects. */ 00049 /* */ 00050 /* - Copy the file <ft2build.h> to `$BUILD/ft2build.h' and modify it */ 00051 /* slightly to pre-define the macro FT_CONFIG_OPTIONS_H used to */ 00052 /* locate this file during the build. For example, */ 00053 /* */ 00054 /* #define FT_CONFIG_OPTIONS_H <myftoptions.h> */ 00055 /* #include <freetype/config/ftheader.h> */ 00056 /* */ 00057 /* will use `$BUILD/myftoptions.h' instead of this file for macro */ 00058 /* definitions. */ 00059 /* */ 00060 /* Note also that you can similarly pre-define the macro */ 00061 /* FT_CONFIG_MODULES_H used to locate the file listing of the modules */ 00062 /* that are statically linked to the library at compile time. By */ 00063 /* default, this file is <freetype/config/ftmodule.h>. */ 00064 /* */ 00065 /* We highly recommend using the third method whenever possible. */ 00066 /* */ 00067 /*************************************************************************/ 00068 00069 00070 /*************************************************************************/ 00071 /*************************************************************************/ 00072 /**** ****/ 00073 /**** 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 ****/ 00074 /**** ****/ 00075 /*************************************************************************/ 00076 /*************************************************************************/ 00077 00078 00079 /*************************************************************************/ 00080 /* */ 00081 /* Uncomment the line below if you want to activate sub-pixel rendering */ 00082 /* (a.k.a. LCD rendering, or ClearType) in this build of the library. */ 00083 /* */ 00084 /* Note that this feature is covered by several Microsoft patents */ 00085 /* and should not be activated in any default build of the library. */ 00086 /* */ 00087 /* This macro has no impact on the FreeType API, only on its */ 00088 /* _implementation_. For example, using FT_RENDER_MODE_LCD when calling */ 00089 /* FT_Render_Glyph still generates a bitmap that is 3 times wider than */ 00090 /* the original size in case this macro isn't defined; however, each */ 00091 /* triplet of subpixels has R=G=B. */ 00092 /* */ 00093 /* This is done to allow FreeType clients to run unmodified, forcing */ 00094 /* them to display normal gray-level anti-aliased glyphs. */ 00095 /* */ 00096 #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING 00097 00098 00099 /*************************************************************************/ 00100 /* */ 00101 /* Many compilers provide a non-ANSI 64-bit data type that can be used */ 00102 /* by FreeType to speed up some computations. However, this will create */ 00103 /* some problems when compiling the library in strict ANSI mode. */ 00104 /* */ 00105 /* For this reason, the use of 64-bit integers is normally disabled when */ 00106 /* the __STDC__ macro is defined. You can however disable this by */ 00107 /* defining the macro FT_CONFIG_OPTION_FORCE_INT64 here. */ 00108 /* */ 00109 /* For most compilers, this will only create compilation warnings when */ 00110 /* building the library. */ 00111 /* */ 00112 /* ObNote: The compiler-specific 64-bit integers are detected in the */ 00113 /* file `ftconfig.h' either statically or through the */ 00114 /* `configure' script on supported platforms. */ 00115 /* */ 00116 #undef FT_CONFIG_OPTION_FORCE_INT64 00117 00118 00119 /*************************************************************************/ 00120 /* */ 00121 /* If this macro is defined, do not try to use an assembler version of */ 00122 /* performance-critical functions (e.g. FT_MulFix). You should only do */ 00123 /* that to verify that the assembler function works properly, or to */ 00124 /* execute benchmark tests of the various implementations. */ 00125 /* #define FT_CONFIG_OPTION_NO_ASSEMBLER */ 00126 00127 00128 /*************************************************************************/ 00129 /* */ 00130 /* If this macro is defined, try to use an inlined assembler version of */ 00131 /* the `FT_MulFix' function, which is a `hotspot' when loading and */ 00132 /* hinting glyphs, and which should be executed as fast as possible. */ 00133 /* */ 00134 /* Note that if your compiler or CPU is not supported, this will default */ 00135 /* to the standard and portable implementation found in `ftcalc.c'. */ 00136 /* */ 00137 #define FT_CONFIG_OPTION_INLINE_MULFIX 00138 00139 00140 /*************************************************************************/ 00141 /* */ 00142 /* LZW-compressed file support. */ 00143 /* */ 00144 /* FreeType now handles font files that have been compressed with the */ 00145 /* `compress' program. This is mostly used to parse many of the PCF */ 00146 /* files that come with various X11 distributions. The implementation */ 00147 /* uses NetBSD's `zopen' to partially uncompress the file on the fly */ 00148 /* (see src/lzw/ftgzip.c). */ 00149 /* */ 00150 /* Define this macro if you want to enable this `feature'. */ 00151 /* */ 00152 #define FT_CONFIG_OPTION_USE_LZW 00153 00154 00155 /*************************************************************************/ 00156 /* */ 00157 /* Gzip-compressed file support. */ 00158 /* */ 00159 /* FreeType now handles font files that have been compressed with the */ 00160 /* `gzip' program. This is mostly used to parse many of the PCF files */ 00161 /* that come with XFree86. The implementation uses `zlib' to */ 00162 /* partially uncompress the file on the fly (see src/gzip/ftgzip.c). */ 00163 /* */ 00164 /* Define this macro if you want to enable this `feature'. See also */ 00165 /* the macro FT_CONFIG_OPTION_SYSTEM_ZLIB below. */ 00166 /* */ 00167 #define FT_CONFIG_OPTION_USE_ZLIB 00168 00169 00170 /*************************************************************************/ 00171 /* */ 00172 /* ZLib library selection */ 00173 /* */ 00174 /* This macro is only used when FT_CONFIG_OPTION_USE_ZLIB is defined. */ 00175 /* It allows FreeType's `ftgzip' component to link to the system's */ 00176 /* installation of the ZLib library. This is useful on systems like */ 00177 /* Unix or VMS where it generally is already available. */ 00178 /* */ 00179 /* If you let it undefined, the component will use its own copy */ 00180 /* of the zlib sources instead. These have been modified to be */ 00181 /* included directly within the component and *not* export external */ 00182 /* function names. This allows you to link any program with FreeType */ 00183 /* _and_ ZLib without linking conflicts. */ 00184 /* */ 00185 /* Do not #undef this macro here since the build system might define */ 00186 /* it for certain configurations only. */ 00187 /* */ 00188 /* #define FT_CONFIG_OPTION_SYSTEM_ZLIB */ 00189 00190 00191 /*************************************************************************/ 00192 /* */ 00193 /* DLL export compilation */ 00194 /* */ 00195 /* When compiling FreeType as a DLL, some systems/compilers need a */ 00196 /* special keyword in front OR after the return type of function */ 00197 /* declarations. */ 00198 /* */ 00199 /* Two macros are used within the FreeType source code to define */ 00200 /* exported library functions: FT_EXPORT and FT_EXPORT_DEF. */ 00201 /* */ 00202 /* FT_EXPORT( return_type ) */ 00203 /* */ 00204 /* is used in a function declaration, as in */ 00205 /* */ 00206 /* FT_EXPORT( FT_Error ) */ 00207 /* FT_Init_FreeType( FT_Library* alibrary ); */ 00208 /* */ 00209 /* */ 00210 /* FT_EXPORT_DEF( return_type ) */ 00211 /* */ 00212 /* is used in a function definition, as in */ 00213 /* */ 00214 /* FT_EXPORT_DEF( FT_Error ) */ 00215 /* FT_Init_FreeType( FT_Library* alibrary ) */ 00216 /* { */ 00217 /* ... some code ... */ 00218 /* return FT_Err_Ok; */ 00219 /* } */ 00220 /* */ 00221 /* You can provide your own implementation of FT_EXPORT and */ 00222 /* FT_EXPORT_DEF here if you want. If you leave them undefined, they */ 00223 /* will be later automatically defined as `extern return_type' to */ 00224 /* allow normal compilation. */ 00225 /* */ 00226 /* Do not #undef these macros here since the build system might define */ 00227 /* them for certain configurations only. */ 00228 /* */ 00229 /* #define FT_EXPORT(x) extern x */ 00230 /* #define FT_EXPORT_DEF(x) x */ 00231 00232 00233 /*************************************************************************/ 00234 /* */ 00235 /* Glyph Postscript Names handling */ 00236 /* */ 00237 /* By default, FreeType 2 is compiled with the `psnames' module. This */ 00238 /* module is in charge of converting a glyph name string into a */ 00239 /* Unicode value, or return a Macintosh standard glyph name for the */ 00240 /* use with the TrueType `post' table. */ 00241 /* */ 00242 /* Undefine this macro if you do not want `psnames' compiled in your */ 00243 /* build of FreeType. This has the following effects: */ 00244 /* */ 00245 /* - The TrueType driver will provide its own set of glyph names, */ 00246 /* if you build it to support postscript names in the TrueType */ 00247 /* `post' table. */ 00248 /* */ 00249 /* - The Type 1 driver will not be able to synthesize a Unicode */ 00250 /* charmap out of the glyphs found in the fonts. */ 00251 /* */ 00252 /* You would normally undefine this configuration macro when building */ 00253 /* a version of FreeType that doesn't contain a Type 1 or CFF driver. */ 00254 /* */ 00255 #define FT_CONFIG_OPTION_POSTSCRIPT_NAMES 00256 00257 00258 /*************************************************************************/ 00259 /* */ 00260 /* Postscript Names to Unicode Values support */ 00261 /* */ 00262 /* By default, FreeType 2 is built with the `PSNames' module compiled */ 00263 /* in. Among other things, the module is used to convert a glyph name */ 00264 /* into a Unicode value. This is especially useful in order to */ 00265 /* synthesize on the fly a Unicode charmap from the CFF/Type 1 driver */ 00266 /* through a big table named the `Adobe Glyph List' (AGL). */ 00267 /* */ 00268 /* Undefine this macro if you do not want the Adobe Glyph List */ 00269 /* compiled in your `PSNames' module. The Type 1 driver will not be */ 00270 /* able to synthesize a Unicode charmap out of the glyphs found in the */ 00271 /* fonts. */ 00272 /* */ 00273 #define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST 00274 00275 00276 /*************************************************************************/ 00277 /* */ 00278 /* Support for Mac fonts */ 00279 /* */ 00280 /* Define this macro if you want support for outline fonts in Mac */ 00281 /* format (mac dfont, mac resource, macbinary containing a mac */ 00282 /* resource) on non-Mac platforms. */ 00283 /* */ 00284 /* Note that the `FOND' resource isn't checked. */ 00285 /* */ 00286 #define FT_CONFIG_OPTION_MAC_FONTS 00287 00288 00289 /*************************************************************************/ 00290 /* */ 00291 /* Guessing methods to access embedded resource forks */ 00292 /* */ 00293 /* Enable extra Mac fonts support on non-Mac platforms (e.g. */ 00294 /* GNU/Linux). */ 00295 /* */ 00296 /* Resource forks which include fonts data are stored sometimes in */ 00297 /* locations which users or developers don't expected. In some cases, */ 00298 /* resource forks start with some offset from the head of a file. In */ 00299 /* other cases, the actual resource fork is stored in file different */ 00300 /* from what the user specifies. If this option is activated, */ 00301 /* FreeType tries to guess whether such offsets or different file */ 00302 /* names must be used. */ 00303 /* */ 00304 /* Note that normal, direct access of resource forks is controlled via */ 00305 /* the FT_CONFIG_OPTION_MAC_FONTS option. */ 00306 /* */ 00307 #ifdef FT_CONFIG_OPTION_MAC_FONTS 00308 #define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK 00309 #endif 00310 00311 00312 /*************************************************************************/ 00313 /* */ 00314 /* Allow the use of FT_Incremental_Interface to load typefaces that */ 00315 /* contain no glyph data, but supply it via a callback function. */ 00316 /* This is required by clients supporting document formats which */ 00317 /* supply font data incrementally as the document is parsed, such */ 00318 /* as the Ghostscript interpreter for the PostScript language. */ 00319 /* */ 00320 #define FT_CONFIG_OPTION_INCREMENTAL 00321 00322 00323 /*************************************************************************/ 00324 /* */ 00325 /* The size in bytes of the render pool used by the scan-line converter */ 00326 /* to do all of its work. */ 00327 /* */ 00328 /* This must be greater than 4KByte if you use FreeType to rasterize */ 00329 /* glyphs; otherwise, you may set it to zero to avoid unnecessary */ 00330 /* allocation of the render pool. */ 00331 /* */ 00332 #define FT_RENDER_POOL_SIZE 16384L 00333 00334 00335 /*************************************************************************/ 00336 /* */ 00337 /* FT_MAX_MODULES */ 00338 /* */ 00339 /* The maximum number of modules that can be registered in a single */ 00340 /* FreeType library object. 32 is the default. */ 00341 /* */ 00342 #define FT_MAX_MODULES 32 00343 00344 00345 /*************************************************************************/ 00346 /* */ 00347 /* Debug level */ 00348 /* */ 00349 /* FreeType can be compiled in debug or trace mode. In debug mode, */ 00350 /* errors are reported through the `ftdebug' component. In trace */ 00351 /* mode, additional messages are sent to the standard output during */ 00352 /* execution. */ 00353 /* */ 00354 /* Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode. */ 00355 /* Define FT_DEBUG_LEVEL_TRACE to build it in trace mode. */ 00356 /* */ 00357 /* Don't define any of these macros to compile in `release' mode! */ 00358 /* */ 00359 /* Do not #undef these macros here since the build system might define */ 00360 /* them for certain configurations only. */ 00361 /* */ 00362 #define FT_DEBUG_LEVEL_ERROR 00363 #define FT_DEBUG_LEVEL_TRACE 00364 00365 00366 /*************************************************************************/ 00367 /* */ 00368 /* Memory Debugging */ 00369 /* */ 00370 /* FreeType now comes with an integrated memory debugger that is */ 00371 /* capable of detecting simple errors like memory leaks or double */ 00372 /* deletes. To compile it within your build of the library, you */ 00373 /* should define FT_DEBUG_MEMORY here. */ 00374 /* */ 00375 /* Note that the memory debugger is only activated at runtime when */ 00376 /* when the _environment_ variable `FT2_DEBUG_MEMORY' is defined also! */ 00377 /* */ 00378 /* Do not #undef this macro here since the build system might define */ 00379 /* it for certain configurations only. */ 00380 /* */ 00381 #define FT_DEBUG_MEMORY 00382 00383 00384 /*************************************************************************/ 00385 /* */ 00386 /* Module errors */ 00387 /* */ 00388 /* If this macro is set (which is _not_ the default), the higher byte */ 00389 /* of an error code gives the module in which the error has occurred, */ 00390 /* while the lower byte is the real error code. */ 00391 /* */ 00392 /* Setting this macro makes sense for debugging purposes only, since */ 00393 /* it would break source compatibility of certain programs that use */ 00394 /* FreeType 2. */ 00395 /* */ 00396 /* More details can be found in the files ftmoderr.h and fterrors.h. */ 00397 /* */ 00398 #undef FT_CONFIG_OPTION_USE_MODULE_ERRORS 00399 00400 00401 /*************************************************************************/ 00402 /* */ 00403 /* Position Independent Code */ 00404 /* */ 00405 /* If this macro is set (which is _not_ the default), FreeType2 will */ 00406 /* avoid creating constants that require address fixups. Instead the */ 00407 /* constants will be moved into a struct and additional intialization */ 00408 /* code will be used. */ 00409 /* */ 00410 /* Setting this macro is needed for systems that prohibit address */ 00411 /* fixups, such as BREW. */ 00412 /* */ 00413 /* #define FT_CONFIG_OPTION_PIC */ 00414 00415 00416 /*************************************************************************/ 00417 /*************************************************************************/ 00418 /**** ****/ 00419 /**** S F N T D R I V E R C O N F I G U R A T I O N ****/ 00420 /**** ****/ 00421 /*************************************************************************/ 00422 /*************************************************************************/ 00423 00424 00425 /*************************************************************************/ 00426 /* */ 00427 /* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support */ 00428 /* embedded bitmaps in all formats using the SFNT module (namely */ 00429 /* TrueType & OpenType). */ 00430 /* */ 00431 #define TT_CONFIG_OPTION_EMBEDDED_BITMAPS 00432 00433 00434 /*************************************************************************/ 00435 /* */ 00436 /* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to */ 00437 /* load and enumerate the glyph Postscript names in a TrueType or */ 00438 /* OpenType file. */ 00439 /* */ 00440 /* Note that when you do not compile the `PSNames' module by undefining */ 00441 /* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will */ 00442 /* contain additional code used to read the PS Names table from a font. */ 00443 /* */ 00444 /* (By default, the module uses `PSNames' to extract glyph names.) */ 00445 /* */ 00446 #define TT_CONFIG_OPTION_POSTSCRIPT_NAMES 00447 00448 00449 /*************************************************************************/ 00450 /* */ 00451 /* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to */ 00452 /* access the internal name table in a SFNT-based format like TrueType */ 00453 /* or OpenType. The name table contains various strings used to */ 00454 /* describe the font, like family name, copyright, version, etc. It */ 00455 /* does not contain any glyph name though. */ 00456 /* */ 00457 /* Accessing SFNT names is done through the functions declared in */ 00458 /* `freetype/ftsnames.h'. */ 00459 /* */ 00460 #define TT_CONFIG_OPTION_SFNT_NAMES 00461 00462 00463 /*************************************************************************/ 00464 /* */ 00465 /* TrueType CMap support */ 00466 /* */ 00467 /* Here you can fine-tune which TrueType CMap table format shall be */ 00468 /* supported. */ 00469 #define TT_CONFIG_CMAP_FORMAT_0 00470 #define TT_CONFIG_CMAP_FORMAT_2 00471 #define TT_CONFIG_CMAP_FORMAT_4 00472 #define TT_CONFIG_CMAP_FORMAT_6 00473 #define TT_CONFIG_CMAP_FORMAT_8 00474 #define TT_CONFIG_CMAP_FORMAT_10 00475 #define TT_CONFIG_CMAP_FORMAT_12 00476 #define TT_CONFIG_CMAP_FORMAT_13 00477 #define TT_CONFIG_CMAP_FORMAT_14 00478 00479 00480 /*************************************************************************/ 00481 /*************************************************************************/ 00482 /**** ****/ 00483 /**** 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 ****/ 00484 /**** ****/ 00485 /*************************************************************************/ 00486 /*************************************************************************/ 00487 00488 /*************************************************************************/ 00489 /* */ 00490 /* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile */ 00491 /* a bytecode interpreter in the TrueType driver. */ 00492 /* */ 00493 /* By undefining this, you will only compile the code necessary to load */ 00494 /* TrueType glyphs without hinting. */ 00495 /* */ 00496 /* Do not #undef this macro here, since the build system might */ 00497 /* define it for certain configurations only. */ 00498 /* */ 00499 #define TT_CONFIG_OPTION_BYTECODE_INTERPRETER 00500 00501 00502 /*************************************************************************/ 00503 /* */ 00504 /* If you define TT_CONFIG_OPTION_UNPATENTED_HINTING, a special version */ 00505 /* of the TrueType bytecode interpreter is used that doesn't implement */ 00506 /* any of the patented opcodes and algorithms. The patents related to */ 00507 /* TrueType hinting have expired worldwide since May 2010; this option */ 00508 /* is now deprecated. */ 00509 /* */ 00510 /* Note that the TT_CONFIG_OPTION_UNPATENTED_HINTING macro is *ignored* */ 00511 /* if you define TT_CONFIG_OPTION_BYTECODE_INTERPRETER; in other words, */ 00512 /* either define TT_CONFIG_OPTION_BYTECODE_INTERPRETER or */ 00513 /* TT_CONFIG_OPTION_UNPATENTED_HINTING but not both at the same time. */ 00514 /* */ 00515 /* This macro is only useful for a small number of font files (mostly */ 00516 /* for Asian scripts) that require bytecode interpretation to properly */ 00517 /* load glyphs. For all other fonts, this produces unpleasant results, */ 00518 /* thus the unpatented interpreter is never used to load glyphs from */ 00519 /* TrueType fonts unless one of the following two options is used. */ 00520 /* */ 00521 /* - The unpatented interpreter is explicitly activated by the user */ 00522 /* through the FT_PARAM_TAG_UNPATENTED_HINTING parameter tag */ 00523 /* when opening the FT_Face. */ 00524 /* */ 00525 /* - FreeType detects that the FT_Face corresponds to one of the */ 00526 /* `trick' fonts (e.g., `Mingliu') it knows about. The font engine */ 00527 /* contains a hard-coded list of font names and other matching */ 00528 /* parameters (see function `tt_face_init' in file */ 00529 /* `src/truetype/ttobjs.c'). */ 00530 /* */ 00531 /* Here a sample code snippet for using FT_PARAM_TAG_UNPATENTED_HINTING. */ 00532 /* */ 00533 /* { */ 00534 /* FT_Parameter parameter; */ 00535 /* FT_Open_Args open_args; */ 00536 /* */ 00537 /* */ 00538 /* parameter.tag = FT_PARAM_TAG_UNPATENTED_HINTING; */ 00539 /* */ 00540 /* open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS; */ 00541 /* open_args.pathname = my_font_pathname; */ 00542 /* open_args.num_params = 1; */ 00543 /* open_args.params = ¶meter; */ 00544 /* */ 00545 /* error = FT_Open_Face( library, &open_args, index, &face ); */ 00546 /* ... */ 00547 /* } */ 00548 /* */ 00549 /* #define TT_CONFIG_OPTION_UNPATENTED_HINTING */ 00550 00551 00552 /*************************************************************************/ 00553 /* */ 00554 /* Define TT_CONFIG_OPTION_INTERPRETER_SWITCH to compile the TrueType */ 00555 /* bytecode interpreter with a huge switch statement, rather than a call */ 00556 /* table. This results in smaller and faster code for a number of */ 00557 /* architectures. */ 00558 /* */ 00559 /* Note however that on some compiler/processor combinations, undefining */ 00560 /* this macro will generate faster, though larger, code. */ 00561 /* */ 00562 #define TT_CONFIG_OPTION_INTERPRETER_SWITCH 00563 00564 00565 /*************************************************************************/ 00566 /* */ 00567 /* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the */ 00568 /* TrueType glyph loader to use Apple's definition of how to handle */ 00569 /* component offsets in composite glyphs. */ 00570 /* */ 00571 /* Apple and MS disagree on the default behavior of component offsets */ 00572 /* in composites. Apple says that they should be scaled by the scaling */ 00573 /* factors in the transformation matrix (roughly, it's more complex) */ 00574 /* while MS says they should not. OpenType defines two bits in the */ 00575 /* composite flags array which can be used to disambiguate, but old */ 00576 /* fonts will not have them. */ 00577 /* */ 00578 /* http://partners.adobe.com/asn/developer/opentype/glyf.html */ 00579 /* http://fonts.apple.com/TTRefMan/RM06/Chap6glyf.html */ 00580 /* */ 00581 #undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED 00582 00583 00584 /*************************************************************************/ 00585 /* */ 00586 /* Define TT_CONFIG_OPTION_GX_VAR_SUPPORT if you want to include */ 00587 /* support for Apple's distortable font technology (fvar, gvar, cvar, */ 00588 /* and avar tables). This has many similarities to Type 1 Multiple */ 00589 /* Masters support. */ 00590 /* */ 00591 #define TT_CONFIG_OPTION_GX_VAR_SUPPORT 00592 00593 00594 /*************************************************************************/ 00595 /* */ 00596 /* Define TT_CONFIG_OPTION_BDF if you want to include support for */ 00597 /* an embedded `BDF ' table within SFNT-based bitmap formats. */ 00598 /* */ 00599 #define TT_CONFIG_OPTION_BDF 00600 00601 00602 /*************************************************************************/ 00603 /*************************************************************************/ 00604 /**** ****/ 00605 /**** T Y P E 1 D R I V E R C O N F I G U R A T I O N ****/ 00606 /**** ****/ 00607 /*************************************************************************/ 00608 /*************************************************************************/ 00609 00610 00611 /*************************************************************************/ 00612 /* */ 00613 /* T1_MAX_DICT_DEPTH is the maximal depth of nest dictionaries and */ 00614 /* arrays in the Type 1 stream (see t1load.c). A minimum of 4 is */ 00615 /* required. */ 00616 /* */ 00617 #define T1_MAX_DICT_DEPTH 5 00618 00619 00620 /*************************************************************************/ 00621 /* */ 00622 /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */ 00623 /* calls during glyph loading. */ 00624 /* */ 00625 #define T1_MAX_SUBRS_CALLS 16 00626 00627 00628 /*************************************************************************/ 00629 /* */ 00630 /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */ 00631 /* minimum of 16 is required. */ 00632 /* */ 00633 /* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256. */ 00634 /* */ 00635 #define T1_MAX_CHARSTRINGS_OPERANDS 256 00636 00637 00638 /*************************************************************************/ 00639 /* */ 00640 /* Define this configuration macro if you want to prevent the */ 00641 /* compilation of `t1afm', which is in charge of reading Type 1 AFM */ 00642 /* files into an existing face. Note that if set, the T1 driver will be */ 00643 /* unable to produce kerning distances. */ 00644 /* */ 00645 #undef T1_CONFIG_OPTION_NO_AFM 00646 00647 00648 /*************************************************************************/ 00649 /* */ 00650 /* Define this configuration macro if you want to prevent the */ 00651 /* compilation of the Multiple Masters font support in the Type 1 */ 00652 /* driver. */ 00653 /* */ 00654 #undef T1_CONFIG_OPTION_NO_MM_SUPPORT 00655 00656 00657 /*************************************************************************/ 00658 /*************************************************************************/ 00659 /**** ****/ 00660 /**** 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 ****/ 00661 /**** ****/ 00662 /*************************************************************************/ 00663 /*************************************************************************/ 00664 00665 00666 /*************************************************************************/ 00667 /* */ 00668 /* Compile autofit module with CJK (Chinese, Japanese, Korean) script */ 00669 /* support. */ 00670 /* */ 00671 #define AF_CONFIG_OPTION_CJK 00672 00673 /*************************************************************************/ 00674 /* */ 00675 /* Compile autofit module with Indic script support. */ 00676 /* */ 00677 #define AF_CONFIG_OPTION_INDIC 00678 00679 /* */ 00680 00681 00682 /* 00683 * Define this variable if you want to keep the layout of internal 00684 * structures that was used prior to FreeType 2.2. This also compiles in 00685 * a few obsolete functions to avoid linking problems on typical Unix 00686 * distributions. 00687 * 00688 * For embedded systems or building a new distribution from scratch, it 00689 * is recommended to disable the macro since it reduces the library's code 00690 * size and activates a few memory-saving optimizations as well. 00691 */ 00692 /* #define FT_CONFIG_OPTION_OLD_INTERNALS xxx */ 00693 00694 00695 /* 00696 * To detect legacy cache-lookup call from a rogue client (<= 2.1.7), 00697 * we restrict the number of charmaps in a font. The current API of 00698 * FTC_CMapCache_Lookup() takes cmap_index & charcode, but old API 00699 * takes charcode only. To determine the passed value is for cmap_index 00700 * or charcode, the possible cmap_index is restricted not to exceed 00701 * the minimum possible charcode by a rogue client. It is also very 00702 * unlikely that a rogue client is interested in Unicode values 0 to 15. 00703 * 00704 * NOTE: The original threshold was 4 deduced from popular number of 00705 * cmap subtables in UCS-4 TrueType fonts, but now it is not 00706 * irregular for OpenType fonts to have more than 4 subtables, 00707 * because variation selector subtables are available for Apple 00708 * and Microsoft platforms. 00709 */ 00710 00711 #ifdef FT_CONFIG_OPTION_OLD_INTERNALS 00712 #define FT_MAX_CHARMAP_CACHEABLE 15 00713 #endif 00714 00715 00716 /* 00717 * This macro is defined if either unpatented or native TrueType 00718 * hinting is requested by the definitions above. 00719 */ 00720 #ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER 00721 #define TT_USE_BYTECODE_INTERPRETER 00722 #undef TT_CONFIG_OPTION_UNPATENTED_HINTING 00723 #elif defined TT_CONFIG_OPTION_UNPATENTED_HINTING 00724 #define TT_USE_BYTECODE_INTERPRETER 00725 #endif 00726 00727 FT_END_HEADER 00728 00729 00730 #endif /* __FTOPTION_H__ */ 00731 00732 00733 /* END */
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