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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 3918 | Serge | 1 | /***************************************************************************/ |
| 2 | /* */ |
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| 3 | /* ftoption.h (for development) */ |
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| 4 | /* */ |
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| 5 | /* User-selectable configuration macros (specification only). */ |
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| 6 | /* */ |
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| 7 | /* Copyright 1996-2013 by */ |
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| 8 | /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
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| 9 | /* */ |
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| 10 | /* This file is part of the FreeType project, and may only be used, */ |
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| 11 | /* modified, and distributed under the terms of the FreeType project */ |
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| 12 | /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
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| 13 | /* this file you indicate that you have read the license and */ |
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| 14 | /* understand and accept it fully. */ |
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| 15 | /* */ |
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| 16 | /***************************************************************************/ |
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| 17 | |||
| 18 | |||
| 19 | #ifndef __FTOPTION_H__ |
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| 20 | #define __FTOPTION_H__ |
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| 21 | |||
| 22 | |||
| 23 | #include |
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| 24 | |||
| 25 | |||
| 26 | FT_BEGIN_HEADER |
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| 27 | |||
| 28 | /*************************************************************************/ |
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| 29 | /* */ |
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| 30 | /* USER-SELECTABLE CONFIGURATION MACROS */ |
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| 31 | /* */ |
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| 32 | /* This file contains the default configuration macro definitions for */ |
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| 33 | /* a standard build of the FreeType library. There are three ways to */ |
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| 34 | /* use this file to build project-specific versions of the library: */ |
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| 35 | /* */ |
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| 36 | /* - You can modify this file by hand, but this is not recommended in */ |
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| 37 | /* cases where you would like to build several versions of the */ |
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| 38 | /* library from a single source directory. */ |
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| 39 | /* */ |
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| 40 | /* - You can put a copy of this file in your build directory, more */ |
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| 41 | /* precisely in `$BUILD/freetype/config/ftoption.h', where `$BUILD' */ |
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| 42 | /* is the name of a directory that is included _before_ the FreeType */ |
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| 43 | /* include path during compilation. */ |
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| 44 | /* */ |
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| 45 | /* The default FreeType Makefiles and Jamfiles use the build */ |
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| 46 | /* directory `builds/ |
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| 47 | /* that for your own projects. */ |
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| 48 | /* */ |
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| 49 | /* - Copy the file |
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| 50 | /* slightly to pre-define the macro FT_CONFIG_OPTIONS_H used to */ |
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| 51 | /* locate this file during the build. For example, */ |
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| 52 | /* */ |
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| 53 | /* #define FT_CONFIG_OPTIONS_H |
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| 54 | /* #include |
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| 55 | /* */ |
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| 56 | /* will use `$BUILD/myftoptions.h' instead of this file for macro */ |
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| 57 | /* definitions. */ |
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| 58 | /* */ |
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| 59 | /* Note also that you can similarly pre-define the macro */ |
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| 60 | /* FT_CONFIG_MODULES_H used to locate the file listing of the modules */ |
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| 61 | /* that are statically linked to the library at compile time. By */ |
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| 62 | /* default, this file is |
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| 63 | /* */ |
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| 64 | /* We highly recommend using the third method whenever possible. */ |
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| 65 | /* */ |
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| 66 | /*************************************************************************/ |
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| 67 | |||
| 68 | |||
| 69 | /*************************************************************************/ |
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| 70 | /*************************************************************************/ |
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| 71 | /**** ****/ |
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| 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 ****/ |
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| 73 | /**** ****/ |
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| 74 | /*************************************************************************/ |
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| 75 | /*************************************************************************/ |
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| 76 | |||
| 77 | |||
| 78 | /*************************************************************************/ |
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| 79 | /* */ |
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| 80 | /* Uncomment the line below if you want to activate sub-pixel rendering */ |
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| 81 | /* (a.k.a. LCD rendering, or ClearType) in this build of the library. */ |
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| 82 | /* */ |
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| 83 | /* Note that this feature is covered by several Microsoft patents */ |
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| 84 | /* and should not be activated in any default build of the library. */ |
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| 85 | /* */ |
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| 86 | /* This macro has no impact on the FreeType API, only on its */ |
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| 87 | /* _implementation_. For example, using FT_RENDER_MODE_LCD when calling */ |
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| 88 | /* FT_Render_Glyph still generates a bitmap that is 3 times wider than */ |
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| 89 | /* the original size in case this macro isn't defined; however, each */ |
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| 90 | /* triplet of subpixels has R=G=B. */ |
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| 91 | /* */ |
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| 92 | /* This is done to allow FreeType clients to run unmodified, forcing */ |
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| 93 | /* them to display normal gray-level anti-aliased glyphs. */ |
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| 94 | /* */ |
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| 95 | #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING |
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| 96 | |||
| 97 | |||
| 98 | /*************************************************************************/ |
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| 99 | /* */ |
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| 100 | /* Many compilers provide a non-ANSI 64-bit data type that can be used */ |
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| 101 | /* by FreeType to speed up some computations. However, this will create */ |
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| 102 | /* some problems when compiling the library in strict ANSI mode. */ |
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| 103 | /* */ |
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| 104 | /* For this reason, the use of 64-bit integers is normally disabled when */ |
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| 105 | /* the __STDC__ macro is defined. You can however disable this by */ |
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| 106 | /* defining the macro FT_CONFIG_OPTION_FORCE_INT64 here. */ |
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| 107 | /* */ |
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| 108 | /* For most compilers, this will only create compilation warnings when */ |
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| 109 | /* building the library. */ |
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| 110 | /* */ |
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| 111 | /* ObNote: The compiler-specific 64-bit integers are detected in the */ |
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| 112 | /* file `ftconfig.h' either statically or through the */ |
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| 113 | /* `configure' script on supported platforms. */ |
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| 114 | /* */ |
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| 115 | #undef FT_CONFIG_OPTION_FORCE_INT64 |
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| 116 | |||
| 117 | |||
| 118 | /*************************************************************************/ |
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| 119 | /* */ |
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| 120 | /* If this macro is defined, do not try to use an assembler version of */ |
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| 121 | /* performance-critical functions (e.g. FT_MulFix). You should only do */ |
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| 122 | /* that to verify that the assembler function works properly, or to */ |
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| 123 | /* execute benchmark tests of the various implementations. */ |
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| 124 | /* #define FT_CONFIG_OPTION_NO_ASSEMBLER */ |
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| 125 | |||
| 126 | |||
| 127 | /*************************************************************************/ |
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| 128 | /* */ |
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| 129 | /* If this macro is defined, try to use an inlined assembler version of */ |
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| 130 | /* the `FT_MulFix' function, which is a `hotspot' when loading and */ |
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| 131 | /* hinting glyphs, and which should be executed as fast as possible. */ |
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| 132 | /* */ |
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| 133 | /* Note that if your compiler or CPU is not supported, this will default */ |
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| 134 | /* to the standard and portable implementation found in `ftcalc.c'. */ |
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| 135 | /* */ |
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| 136 | #define FT_CONFIG_OPTION_INLINE_MULFIX |
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| 137 | |||
| 138 | |||
| 139 | /*************************************************************************/ |
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| 140 | /* */ |
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| 141 | /* LZW-compressed file support. */ |
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| 142 | /* */ |
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| 143 | /* FreeType now handles font files that have been compressed with the */ |
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| 144 | /* `compress' program. This is mostly used to parse many of the PCF */ |
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| 145 | /* files that come with various X11 distributions. The implementation */ |
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| 146 | /* uses NetBSD's `zopen' to partially uncompress the file on the fly */ |
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| 147 | /* (see src/lzw/ftgzip.c). */ |
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| 148 | /* */ |
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| 149 | /* Define this macro if you want to enable this `feature'. */ |
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| 150 | /* */ |
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| 151 | #define FT_CONFIG_OPTION_USE_LZW |
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| 152 | |||
| 153 | |||
| 154 | /*************************************************************************/ |
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| 155 | /* */ |
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| 156 | /* Gzip-compressed file support. */ |
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| 157 | /* */ |
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| 158 | /* FreeType now handles font files that have been compressed with the */ |
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| 159 | /* `gzip' program. This is mostly used to parse many of the PCF files */ |
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| 160 | /* that come with XFree86. The implementation uses `zlib' to */ |
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| 161 | /* partially uncompress the file on the fly (see src/gzip/ftgzip.c). */ |
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| 162 | /* */ |
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| 163 | /* Define this macro if you want to enable this `feature'. See also */ |
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| 164 | /* the macro FT_CONFIG_OPTION_SYSTEM_ZLIB below. */ |
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| 165 | /* */ |
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| 166 | #define FT_CONFIG_OPTION_USE_ZLIB |
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| 167 | |||
| 168 | |||
| 169 | /*************************************************************************/ |
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| 170 | /* */ |
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| 171 | /* ZLib library selection */ |
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| 172 | /* */ |
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| 173 | /* This macro is only used when FT_CONFIG_OPTION_USE_ZLIB is defined. */ |
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| 174 | /* It allows FreeType's `ftgzip' component to link to the system's */ |
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| 175 | /* installation of the ZLib library. This is useful on systems like */ |
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| 176 | /* Unix or VMS where it generally is already available. */ |
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| 177 | /* */ |
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| 178 | /* If you let it undefined, the component will use its own copy */ |
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| 179 | /* of the zlib sources instead. These have been modified to be */ |
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| 180 | /* included directly within the component and *not* export external */ |
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| 181 | /* function names. This allows you to link any program with FreeType */ |
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| 182 | /* _and_ ZLib without linking conflicts. */ |
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| 183 | /* */ |
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| 184 | /* Do not #undef this macro here since the build system might define */ |
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| 185 | /* it for certain configurations only. */ |
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| 186 | /* */ |
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| 187 | /* #define FT_CONFIG_OPTION_SYSTEM_ZLIB */ |
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| 188 | |||
| 189 | |||
| 190 | /*************************************************************************/ |
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| 191 | /* */ |
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| 192 | /* Bzip2-compressed file support. */ |
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| 193 | /* */ |
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| 194 | /* FreeType now handles font files that have been compressed with the */ |
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| 195 | /* `bzip2' program. This is mostly used to parse many of the PCF */ |
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| 196 | /* files that come with XFree86. The implementation uses `libbz2' to */ |
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| 197 | /* partially uncompress the file on the fly (see src/bzip2/ftbzip2.c). */ |
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| 198 | /* Contrary to gzip, bzip2 currently is not included and need to use */ |
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| 199 | /* the system available bzip2 implementation. */ |
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| 200 | /* */ |
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| 201 | /* Define this macro if you want to enable this `feature'. */ |
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| 202 | /* */ |
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| 203 | #define FT_CONFIG_OPTION_USE_BZIP2 |
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| 204 | |||
| 205 | |||
| 206 | /*************************************************************************/ |
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| 207 | /* */ |
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| 208 | /* PNG bitmap support. */ |
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| 209 | /* */ |
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| 210 | /* FreeType now handles loading color bitmap glyphs in the PNG format. */ |
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| 211 | /* This requires help from the external libpng library. Uncompressed */ |
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| 212 | /* color bitmaps do not need any external libraries and will be */ |
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| 213 | /* supported regardless of this configuration. */ |
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| 214 | /* */ |
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| 215 | /* Define this macro if you want to enable this `feature'. */ |
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| 216 | /* */ |
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| 217 | #define FT_CONFIG_OPTION_USE_PNG |
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| 218 | |||
| 219 | |||
| 220 | /*************************************************************************/ |
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| 221 | /* */ |
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| 222 | /* Define to disable the use of file stream functions and types, FILE, */ |
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| 223 | /* fopen() etc. Enables the use of smaller system libraries on embedded */ |
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| 224 | /* systems that have multiple system libraries, some with or without */ |
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| 225 | /* file stream support, in the cases where file stream support is not */ |
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| 226 | /* necessary such as memory loading of font files. */ |
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| 227 | /* */ |
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| 228 | /* #define FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT */ |
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| 229 | |||
| 230 | |||
| 231 | /*************************************************************************/ |
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| 232 | /* */ |
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| 233 | /* DLL export compilation */ |
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| 234 | /* */ |
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| 235 | /* When compiling FreeType as a DLL, some systems/compilers need a */ |
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| 236 | /* special keyword in front OR after the return type of function */ |
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| 237 | /* declarations. */ |
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| 238 | /* */ |
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| 239 | /* Two macros are used within the FreeType source code to define */ |
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| 240 | /* exported library functions: FT_EXPORT and FT_EXPORT_DEF. */ |
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| 241 | /* */ |
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| 242 | /* FT_EXPORT( return_type ) */ |
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| 243 | /* */ |
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| 244 | /* is used in a function declaration, as in */ |
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| 245 | /* */ |
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| 246 | /* FT_EXPORT( FT_Error ) */ |
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| 247 | /* FT_Init_FreeType( FT_Library* alibrary ); */ |
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| 248 | /* */ |
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| 249 | /* */ |
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| 250 | /* FT_EXPORT_DEF( return_type ) */ |
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| 251 | /* */ |
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| 252 | /* is used in a function definition, as in */ |
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| 253 | /* */ |
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| 254 | /* FT_EXPORT_DEF( FT_Error ) */ |
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| 255 | /* FT_Init_FreeType( FT_Library* alibrary ) */ |
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| 256 | /* { */ |
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| 257 | /* ... some code ... */ |
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| 258 | /* return FT_Err_Ok; */ |
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| 259 | /* } */ |
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| 260 | /* */ |
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| 261 | /* You can provide your own implementation of FT_EXPORT and */ |
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| 262 | /* FT_EXPORT_DEF here if you want. If you leave them undefined, they */ |
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| 263 | /* will be later automatically defined as `extern return_type' to */ |
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| 264 | /* allow normal compilation. */ |
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| 265 | /* */ |
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| 266 | /* Do not #undef these macros here since the build system might define */ |
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| 267 | /* them for certain configurations only. */ |
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| 268 | /* */ |
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| 269 | /* #define FT_EXPORT(x) extern x */ |
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| 270 | /* #define FT_EXPORT_DEF(x) x */ |
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| 271 | |||
| 272 | |||
| 273 | /*************************************************************************/ |
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| 274 | /* */ |
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| 275 | /* Glyph Postscript Names handling */ |
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| 276 | /* */ |
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| 277 | /* By default, FreeType 2 is compiled with the `psnames' module. This */ |
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| 278 | /* module is in charge of converting a glyph name string into a */ |
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| 279 | /* Unicode value, or return a Macintosh standard glyph name for the */ |
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| 280 | /* use with the TrueType `post' table. */ |
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| 281 | /* */ |
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| 282 | /* Undefine this macro if you do not want `psnames' compiled in your */ |
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| 283 | /* build of FreeType. This has the following effects: */ |
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| 284 | /* */ |
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| 285 | /* - The TrueType driver will provide its own set of glyph names, */ |
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| 286 | /* if you build it to support postscript names in the TrueType */ |
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| 287 | /* `post' table. */ |
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| 288 | /* */ |
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| 289 | /* - The Type 1 driver will not be able to synthesize a Unicode */ |
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| 290 | /* charmap out of the glyphs found in the fonts. */ |
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| 291 | /* */ |
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| 292 | /* You would normally undefine this configuration macro when building */ |
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| 293 | /* a version of FreeType that doesn't contain a Type 1 or CFF driver. */ |
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| 294 | /* */ |
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| 295 | #define FT_CONFIG_OPTION_POSTSCRIPT_NAMES |
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| 296 | |||
| 297 | |||
| 298 | /*************************************************************************/ |
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| 299 | /* */ |
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| 300 | /* Postscript Names to Unicode Values support */ |
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| 301 | /* */ |
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| 302 | /* By default, FreeType 2 is built with the `PSNames' module compiled */ |
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| 303 | /* in. Among other things, the module is used to convert a glyph name */ |
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| 304 | /* into a Unicode value. This is especially useful in order to */ |
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| 305 | /* synthesize on the fly a Unicode charmap from the CFF/Type 1 driver */ |
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| 306 | /* through a big table named the `Adobe Glyph List' (AGL). */ |
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| 307 | /* */ |
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| 308 | /* Undefine this macro if you do not want the Adobe Glyph List */ |
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| 309 | /* compiled in your `PSNames' module. The Type 1 driver will not be */ |
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| 310 | /* able to synthesize a Unicode charmap out of the glyphs found in the */ |
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| 311 | /* fonts. */ |
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| 312 | /* */ |
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| 313 | #define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST |
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| 314 | |||
| 315 | |||
| 316 | /*************************************************************************/ |
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| 317 | /* */ |
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| 318 | /* Support for Mac fonts */ |
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| 319 | /* */ |
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| 320 | /* Define this macro if you want support for outline fonts in Mac */ |
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| 321 | /* format (mac dfont, mac resource, macbinary containing a mac */ |
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| 322 | /* resource) on non-Mac platforms. */ |
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| 323 | /* */ |
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| 324 | /* Note that the `FOND' resource isn't checked. */ |
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| 325 | /* */ |
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| 326 | #define FT_CONFIG_OPTION_MAC_FONTS |
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| 327 | |||
| 328 | |||
| 329 | /*************************************************************************/ |
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| 330 | /* */ |
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| 331 | /* Guessing methods to access embedded resource forks */ |
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| 332 | /* */ |
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| 333 | /* Enable extra Mac fonts support on non-Mac platforms (e.g. */ |
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| 334 | /* GNU/Linux). */ |
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| 335 | /* */ |
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| 336 | /* Resource forks which include fonts data are stored sometimes in */ |
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| 337 | /* locations which users or developers don't expected. In some cases, */ |
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| 338 | /* resource forks start with some offset from the head of a file. In */ |
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| 339 | /* other cases, the actual resource fork is stored in file different */ |
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| 340 | /* from what the user specifies. If this option is activated, */ |
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| 341 | /* FreeType tries to guess whether such offsets or different file */ |
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| 342 | /* names must be used. */ |
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| 343 | /* */ |
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| 344 | /* Note that normal, direct access of resource forks is controlled via */ |
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| 345 | /* the FT_CONFIG_OPTION_MAC_FONTS option. */ |
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| 346 | /* */ |
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| 347 | #ifdef FT_CONFIG_OPTION_MAC_FONTS |
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| 348 | #define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK |
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| 349 | #endif |
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| 350 | |||
| 351 | |||
| 352 | /*************************************************************************/ |
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| 353 | /* */ |
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| 354 | /* Allow the use of FT_Incremental_Interface to load typefaces that */ |
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| 355 | /* contain no glyph data, but supply it via a callback function. */ |
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| 356 | /* This is required by clients supporting document formats which */ |
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| 357 | /* supply font data incrementally as the document is parsed, such */ |
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| 358 | /* as the Ghostscript interpreter for the PostScript language. */ |
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| 359 | /* */ |
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| 360 | #define FT_CONFIG_OPTION_INCREMENTAL |
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| 361 | |||
| 362 | |||
| 363 | /*************************************************************************/ |
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| 364 | /* */ |
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| 365 | /* The size in bytes of the render pool used by the scan-line converter */ |
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| 366 | /* to do all of its work. */ |
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| 367 | /* */ |
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| 368 | /* This must be greater than 4KByte if you use FreeType to rasterize */ |
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| 369 | /* glyphs; otherwise, you may set it to zero to avoid unnecessary */ |
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| 370 | /* allocation of the render pool. */ |
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| 371 | /* */ |
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| 372 | #define FT_RENDER_POOL_SIZE 16384L |
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| 373 | |||
| 374 | |||
| 375 | /*************************************************************************/ |
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| 376 | /* */ |
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| 377 | /* FT_MAX_MODULES */ |
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| 378 | /* */ |
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| 379 | /* The maximum number of modules that can be registered in a single */ |
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| 380 | /* FreeType library object. 32 is the default. */ |
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| 381 | /* */ |
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| 382 | #define FT_MAX_MODULES 32 |
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| 383 | |||
| 384 | |||
| 385 | /*************************************************************************/ |
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| 386 | /* */ |
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| 387 | /* Debug level */ |
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| 388 | /* */ |
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| 389 | /* FreeType can be compiled in debug or trace mode. In debug mode, */ |
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| 390 | /* errors are reported through the `ftdebug' component. In trace */ |
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| 391 | /* mode, additional messages are sent to the standard output during */ |
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| 392 | /* execution. */ |
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| 393 | /* */ |
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| 394 | /* Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode. */ |
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| 395 | /* Define FT_DEBUG_LEVEL_TRACE to build it in trace mode. */ |
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| 396 | /* */ |
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| 397 | /* Don't define any of these macros to compile in `release' mode! */ |
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| 398 | /* */ |
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| 399 | /* Do not #undef these macros here since the build system might define */ |
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| 400 | /* them for certain configurations only. */ |
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| 401 | /* */ |
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| 402 | #define FT_DEBUG_LEVEL_ERROR |
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| 403 | #define FT_DEBUG_LEVEL_TRACE |
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| 404 | |||
| 405 | |||
| 406 | /*************************************************************************/ |
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| 407 | /* */ |
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| 408 | /* Autofitter debugging */ |
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| 409 | /* */ |
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| 410 | /* If FT_DEBUG_AUTOFIT is defined, FreeType provides some means to */ |
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| 411 | /* control the autofitter behaviour for debugging purposes with global */ |
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| 412 | /* boolean variables (consequently, you should *never* enable this */ |
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| 413 | /* while compiling in `release' mode): */ |
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| 414 | /* */ |
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| 415 | /* _af_debug_disable_horz_hints */ |
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| 416 | /* _af_debug_disable_vert_hints */ |
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| 417 | /* _af_debug_disable_blue_hints */ |
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| 418 | /* */ |
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| 419 | /* Additionally, the following functions provide dumps of various */ |
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| 420 | /* internal autofit structures to stdout (using `printf'): */ |
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| 421 | /* */ |
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| 422 | /* af_glyph_hints_dump_points */ |
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| 423 | /* af_glyph_hints_dump_segments */ |
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| 424 | /* af_glyph_hints_dump_edges */ |
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| 425 | /* */ |
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| 426 | /* As an argument, they use another global variable: */ |
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| 427 | /* */ |
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| 428 | /* _af_debug_hints */ |
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| 429 | /* */ |
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| 430 | /* Please have a look at the `ftgrid' demo program to see how those */ |
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| 431 | /* variables and macros should be used. */ |
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| 432 | /* */ |
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| 433 | /* Do not #undef these macros here since the build system might define */ |
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| 434 | /* them for certain configurations only. */ |
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| 435 | /* */ |
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| 436 | #define FT_DEBUG_AUTOFIT |
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| 437 | |||
| 438 | |||
| 439 | /*************************************************************************/ |
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| 440 | /* */ |
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| 441 | /* Memory Debugging */ |
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| 442 | /* */ |
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| 443 | /* FreeType now comes with an integrated memory debugger that is */ |
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| 444 | /* capable of detecting simple errors like memory leaks or double */ |
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| 445 | /* deletes. To compile it within your build of the library, you */ |
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| 446 | /* should define FT_DEBUG_MEMORY here. */ |
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| 447 | /* */ |
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| 448 | /* Note that the memory debugger is only activated at runtime when */ |
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| 449 | /* when the _environment_ variable `FT2_DEBUG_MEMORY' is defined also! */ |
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| 450 | /* */ |
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| 451 | /* Do not #undef this macro here since the build system might define */ |
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| 452 | /* it for certain configurations only. */ |
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| 453 | /* */ |
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| 454 | #define FT_DEBUG_MEMORY |
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| 455 | |||
| 456 | |||
| 457 | /*************************************************************************/ |
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| 458 | /* */ |
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| 459 | /* Module errors */ |
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| 460 | /* */ |
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| 461 | /* If this macro is set (which is _not_ the default), the higher byte */ |
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| 462 | /* of an error code gives the module in which the error has occurred, */ |
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| 463 | /* while the lower byte is the real error code. */ |
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| 464 | /* */ |
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| 465 | /* Setting this macro makes sense for debugging purposes only, since */ |
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| 466 | /* it would break source compatibility of certain programs that use */ |
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| 467 | /* FreeType 2. */ |
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| 468 | /* */ |
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| 469 | /* More details can be found in the files ftmoderr.h and fterrors.h. */ |
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| 470 | /* */ |
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| 471 | #undef FT_CONFIG_OPTION_USE_MODULE_ERRORS |
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| 472 | |||
| 473 | |||
| 474 | /*************************************************************************/ |
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| 475 | /* */ |
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| 476 | /* Position Independent Code */ |
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| 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 */ |