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