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| 4680 | right-hear | 1 | /***************************************************************************/ |
| 2 | /* */ |
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| 3 | /* ftoption.h */ |
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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 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */ |
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| 8 | /* 2010 by */ |
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| 9 | /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
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| 10 | /* */ |
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| 11 | /* This file is part of the FreeType project, and may only be used, */ |
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| 12 | /* modified, and distributed under the terms of the FreeType project */ |
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| 13 | /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
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| 14 | /* this file you indicate that you have read the license and */ |
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| 15 | /* understand and accept it fully. */ |
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| 16 | /* */ |
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| 17 | /***************************************************************************/ |
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| 18 | |||
| 19 | |||
| 20 | #ifndef __FTOPTION_H__ |
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| 21 | #define __FTOPTION_H__ |
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| 22 | |||
| 23 | |||
| 24 | #include |
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| 25 | |||
| 26 | |||
| 27 | FT_BEGIN_HEADER |
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| 28 | |||
| 29 | /*************************************************************************/ |
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| 30 | /* */ |
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| 31 | /* USER-SELECTABLE CONFIGURATION MACROS */ |
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| 32 | /* */ |
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| 33 | /* This file contains the default configuration macro definitions for */ |
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| 34 | /* a standard build of the FreeType library. There are three ways to */ |
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| 35 | /* use this file to build project-specific versions of the library: */ |
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| 36 | /* */ |
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| 37 | /* - You can modify this file by hand, but this is not recommended in */ |
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| 38 | /* cases where you would like to build several versions of the */ |
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| 39 | /* library from a single source directory. */ |
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| 40 | /* */ |
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| 41 | /* - You can put a copy of this file in your build directory, more */ |
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| 42 | /* precisely in `$BUILD/freetype/config/ftoption.h', where `$BUILD' */ |
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| 43 | /* is the name of a directory that is included _before_ the FreeType */ |
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| 44 | /* include path during compilation. */ |
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| 45 | /* */ |
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| 46 | /* The default FreeType Makefiles and Jamfiles use the build */ |
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| 47 | /* directory `builds/ |
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| 48 | /* that for your own projects. */ |
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| 49 | /* */ |
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| 50 | /* - Copy the file |
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| 51 | /* slightly to pre-define the macro FT_CONFIG_OPTIONS_H used to */ |
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| 52 | /* locate this file during the build. For example, */ |
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| 53 | /* */ |
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| 54 | /* #define FT_CONFIG_OPTIONS_H |
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| 55 | /* #include |
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| 56 | /* */ |
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| 57 | /* will use `$BUILD/myftoptions.h' instead of this file for macro */ |
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| 58 | /* definitions. */ |
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| 59 | /* */ |
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| 60 | /* Note also that you can similarly pre-define the macro */ |
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| 61 | /* FT_CONFIG_MODULES_H used to locate the file listing of the modules */ |
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| 62 | /* that are statically linked to the library at compile time. By */ |
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| 63 | /* default, this file is |
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| 64 | /* */ |
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| 65 | /* We highly recommend using the third method whenever possible. */ |
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| 66 | /* */ |
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| 67 | /*************************************************************************/ |
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| 68 | |||
| 69 | |||
| 70 | /*************************************************************************/ |
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| 71 | /*************************************************************************/ |
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| 72 | /**** ****/ |
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| 73 | /**** 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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| 74 | /**** ****/ |
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| 75 | /*************************************************************************/ |
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| 76 | /*************************************************************************/ |
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| 77 | |||
| 78 | |||
| 79 | /*************************************************************************/ |
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| 80 | /* */ |
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| 81 | /* Uncomment the line below if you want to activate sub-pixel rendering */ |
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| 82 | /* (a.k.a. LCD rendering, or ClearType) in this build of the library. */ |
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| 83 | /* */ |
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| 84 | /* Note that this feature is covered by several Microsoft patents */ |
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| 85 | /* and should not be activated in any default build of the library. */ |
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| 86 | /* */ |
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| 87 | /* This macro has no impact on the FreeType API, only on its */ |
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| 88 | /* _implementation_. For example, using FT_RENDER_MODE_LCD when calling */ |
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| 89 | /* FT_Render_Glyph still generates a bitmap that is 3 times wider than */ |
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| 90 | /* the original size in case this macro isn't defined; however, each */ |
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| 91 | /* triplet of subpixels has R=G=B. */ |
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| 92 | /* */ |
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| 93 | /* This is done to allow FreeType clients to run unmodified, forcing */ |
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| 94 | /* them to display normal gray-level anti-aliased glyphs. */ |
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| 95 | /* */ |
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| 96 | /* #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING */ |
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| 97 | |||
| 98 | |||
| 99 | /*************************************************************************/ |
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| 100 | /* */ |
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| 101 | /* Many compilers provide a non-ANSI 64-bit data type that can be used */ |
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| 102 | /* by FreeType to speed up some computations. However, this will create */ |
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| 103 | /* some problems when compiling the library in strict ANSI mode. */ |
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| 104 | /* */ |
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| 105 | /* For this reason, the use of 64-bit integers is normally disabled when */ |
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| 106 | /* the __STDC__ macro is defined. You can however disable this by */ |
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| 107 | /* defining the macro FT_CONFIG_OPTION_FORCE_INT64 here. */ |
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| 108 | /* */ |
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| 109 | /* For most compilers, this will only create compilation warnings when */ |
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| 110 | /* building the library. */ |
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| 111 | /* */ |
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| 112 | /* ObNote: The compiler-specific 64-bit integers are detected in the */ |
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| 113 | /* file `ftconfig.h' either statically or through the */ |
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| 114 | /* `configure' script on supported platforms. */ |
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| 115 | /* */ |
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| 116 | #undef FT_CONFIG_OPTION_FORCE_INT64 |
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| 117 | |||
| 118 | |||
| 119 | /*************************************************************************/ |
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| 120 | /* */ |
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| 121 | /* If this macro is defined, do not try to use an assembler version of */ |
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| 122 | /* performance-critical functions (e.g. FT_MulFix). You should only do */ |
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| 123 | /* that to verify that the assembler function works properly, or to */ |
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| 124 | /* execute benchmark tests of the various implementations. */ |
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| 125 | /* #define FT_CONFIG_OPTION_NO_ASSEMBLER */ |
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| 126 | |||
| 127 | |||
| 128 | /*************************************************************************/ |
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| 129 | /* */ |
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| 130 | /* If this macro is defined, try to use an inlined assembler version of */ |
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| 131 | /* the `FT_MulFix' function, which is a `hotspot' when loading and */ |
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| 132 | /* hinting glyphs, and which should be executed as fast as possible. */ |
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| 133 | /* */ |
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| 134 | /* Note that if your compiler or CPU is not supported, this will default */ |
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| 135 | /* to the standard and portable implementation found in `ftcalc.c'. */ |
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| 136 | /* */ |
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| 137 | #define FT_CONFIG_OPTION_INLINE_MULFIX |
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| 138 | |||
| 139 | |||
| 140 | /*************************************************************************/ |
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| 141 | /* */ |
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| 142 | /* LZW-compressed file support. */ |
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| 143 | /* */ |
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| 144 | /* FreeType now handles font files that have been compressed with the */ |
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| 145 | /* `compress' program. This is mostly used to parse many of the PCF */ |
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| 146 | /* files that come with various X11 distributions. The implementation */ |
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| 147 | /* uses NetBSD's `zopen' to partially uncompress the file on the fly */ |
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| 148 | /* (see src/lzw/ftgzip.c). */ |
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| 149 | /* */ |
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| 150 | /* Define this macro if you want to enable this `feature'. */ |
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| 151 | /* */ |
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| 152 | #define FT_CONFIG_OPTION_USE_LZW |
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| 153 | |||
| 154 | |||
| 155 | /*************************************************************************/ |
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| 156 | /* */ |
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| 157 | /* Gzip-compressed file support. */ |
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| 158 | /* */ |
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| 159 | /* FreeType now handles font files that have been compressed with the */ |
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| 160 | /* `gzip' program. This is mostly used to parse many of the PCF files */ |
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| 161 | /* that come with XFree86. The implementation uses `zlib' to */ |
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| 162 | /* partially uncompress the file on the fly (see src/gzip/ftgzip.c). */ |
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| 163 | /* */ |
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| 164 | /* Define this macro if you want to enable this `feature'. See also */ |
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| 165 | /* the macro FT_CONFIG_OPTION_SYSTEM_ZLIB below. */ |
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| 166 | /* */ |
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| 167 | #define FT_CONFIG_OPTION_USE_ZLIB |
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| 168 | |||
| 169 | |||
| 170 | /*************************************************************************/ |
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| 171 | /* */ |
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| 172 | /* ZLib library selection */ |
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| 173 | /* */ |
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| 174 | /* This macro is only used when FT_CONFIG_OPTION_USE_ZLIB is defined. */ |
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| 175 | /* It allows FreeType's `ftgzip' component to link to the system's */ |
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| 176 | /* installation of the ZLib library. This is useful on systems like */ |
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| 177 | /* Unix or VMS where it generally is already available. */ |
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| 178 | /* */ |
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| 179 | /* If you let it undefined, the component will use its own copy */ |
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| 180 | /* of the zlib sources instead. These have been modified to be */ |
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| 181 | /* included directly within the component and *not* export external */ |
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| 182 | /* function names. This allows you to link any program with FreeType */ |
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| 183 | /* _and_ ZLib without linking conflicts. */ |
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| 184 | /* */ |
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| 185 | /* Do not #undef this macro here since the build system might define */ |
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| 186 | /* it for certain configurations only. */ |
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| 187 | /* */ |
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| 188 | /* #define FT_CONFIG_OPTION_SYSTEM_ZLIB */ |
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| 189 | |||
| 190 | |||
| 191 | /*************************************************************************/ |
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| 192 | /* */ |
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| 193 | /* DLL export compilation */ |
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| 194 | /* */ |
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| 195 | /* When compiling FreeType as a DLL, some systems/compilers need a */ |
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| 196 | /* special keyword in front OR after the return type of function */ |
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| 197 | /* declarations. */ |
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| 198 | /* */ |
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| 199 | /* Two macros are used within the FreeType source code to define */ |
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| 200 | /* exported library functions: FT_EXPORT and FT_EXPORT_DEF. */ |
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| 201 | /* */ |
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| 202 | /* FT_EXPORT( return_type ) */ |
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| 203 | /* */ |
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| 204 | /* is used in a function declaration, as in */ |
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| 205 | /* */ |
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| 206 | /* FT_EXPORT( FT_Error ) */ |
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| 207 | /* FT_Init_FreeType( FT_Library* alibrary ); */ |
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| 208 | /* */ |
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| 209 | /* */ |
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| 210 | /* FT_EXPORT_DEF( return_type ) */ |
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| 211 | /* */ |
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| 212 | /* is used in a function definition, as in */ |
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| 213 | /* */ |
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| 214 | /* FT_EXPORT_DEF( FT_Error ) */ |
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| 215 | /* FT_Init_FreeType( FT_Library* alibrary ) */ |
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| 216 | /* { */ |
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| 217 | /* ... some code ... */ |
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| 218 | /* return FT_Err_Ok; */ |
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| 219 | /* } */ |
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| 220 | /* */ |
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| 221 | /* You can provide your own implementation of FT_EXPORT and */ |
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| 222 | /* FT_EXPORT_DEF here if you want. If you leave them undefined, they */ |
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| 223 | /* will be later automatically defined as `extern return_type' to */ |
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| 224 | /* allow normal compilation. */ |
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| 225 | /* */ |
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| 226 | /* Do not #undef these macros here since the build system might define */ |
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| 227 | /* them for certain configurations only. */ |
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| 228 | /* */ |
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| 229 | /* #define FT_EXPORT(x) extern x */ |
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| 230 | /* #define FT_EXPORT_DEF(x) x */ |
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| 231 | |||
| 232 | |||
| 233 | /*************************************************************************/ |
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| 234 | /* */ |
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| 235 | /* Glyph Postscript Names handling */ |
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| 236 | /* */ |
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| 237 | /* By default, FreeType 2 is compiled with the `psnames' module. This */ |
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| 238 | /* module is in charge of converting a glyph name string into a */ |
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| 239 | /* Unicode value, or return a Macintosh standard glyph name for the */ |
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| 240 | /* use with the TrueType `post' table. */ |
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| 241 | /* */ |
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| 242 | /* Undefine this macro if you do not want `psnames' compiled in your */ |
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| 243 | /* build of FreeType. This has the following effects: */ |
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| 244 | /* */ |
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| 245 | /* - The TrueType driver will provide its own set of glyph names, */ |
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| 246 | /* if you build it to support postscript names in the TrueType */ |
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| 247 | /* `post' table. */ |
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| 248 | /* */ |
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| 249 | /* - The Type 1 driver will not be able to synthesize a Unicode */ |
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| 250 | /* charmap out of the glyphs found in the fonts. */ |
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| 251 | /* */ |
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| 252 | /* You would normally undefine this configuration macro when building */ |
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| 253 | /* a version of FreeType that doesn't contain a Type 1 or CFF driver. */ |
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| 254 | /* */ |
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| 255 | #define FT_CONFIG_OPTION_POSTSCRIPT_NAMES |
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| 256 | |||
| 257 | |||
| 258 | /*************************************************************************/ |
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| 259 | /* */ |
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| 260 | /* Postscript Names to Unicode Values support */ |
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| 261 | /* */ |
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| 262 | /* By default, FreeType 2 is built with the `PSNames' module compiled */ |
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| 263 | /* in. Among other things, the module is used to convert a glyph name */ |
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| 264 | /* into a Unicode value. This is especially useful in order to */ |
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| 265 | /* synthesize on the fly a Unicode charmap from the CFF/Type 1 driver */ |
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| 266 | /* through a big table named the `Adobe Glyph List' (AGL). */ |
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| 267 | /* */ |
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| 268 | /* Undefine this macro if you do not want the Adobe Glyph List */ |
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| 269 | /* compiled in your `PSNames' module. The Type 1 driver will not be */ |
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| 270 | /* able to synthesize a Unicode charmap out of the glyphs found in the */ |
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| 271 | /* fonts. */ |
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| 272 | /* */ |
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| 273 | #define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST |
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| 274 | |||
| 275 | |||
| 276 | /*************************************************************************/ |
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| 277 | /* */ |
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| 278 | /* Support for Mac fonts */ |
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| 279 | /* */ |
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| 280 | /* Define this macro if you want support for outline fonts in Mac */ |
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| 281 | /* format (mac dfont, mac resource, macbinary containing a mac */ |
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| 282 | /* resource) on non-Mac platforms. */ |
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| 283 | /* */ |
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| 284 | /* Note that the `FOND' resource isn't checked. */ |
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| 285 | /* */ |
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| 286 | #define FT_CONFIG_OPTION_MAC_FONTS |
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| 287 | |||
| 288 | |||
| 289 | /*************************************************************************/ |
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| 290 | /* */ |
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| 291 | /* Guessing methods to access embedded resource forks */ |
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| 292 | /* */ |
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| 293 | /* Enable extra Mac fonts support on non-Mac platforms (e.g. */ |
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| 294 | /* GNU/Linux). */ |
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| 295 | /* */ |
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| 296 | /* Resource forks which include fonts data are stored sometimes in */ |
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| 297 | /* locations which users or developers don't expected. In some cases, */ |
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| 298 | /* resource forks start with some offset from the head of a file. In */ |
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| 299 | /* other cases, the actual resource fork is stored in file different */ |
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| 300 | /* from what the user specifies. If this option is activated, */ |
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| 301 | /* FreeType tries to guess whether such offsets or different file */ |
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| 302 | /* names must be used. */ |
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| 303 | /* */ |
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| 304 | /* Note that normal, direct access of resource forks is controlled via */ |
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| 305 | /* the FT_CONFIG_OPTION_MAC_FONTS option. */ |
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| 306 | /* */ |
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| 307 | #ifdef FT_CONFIG_OPTION_MAC_FONTS |
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| 308 | #define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK |
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| 309 | #endif |
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| 310 | |||
| 311 | |||
| 312 | /*************************************************************************/ |
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| 313 | /* */ |
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| 314 | /* Allow the use of FT_Incremental_Interface to load typefaces that */ |
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| 315 | /* contain no glyph data, but supply it via a callback function. */ |
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| 316 | /* This is required by clients supporting document formats which */ |
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| 317 | /* supply font data incrementally as the document is parsed, such */ |
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| 318 | /* as the Ghostscript interpreter for the PostScript language. */ |
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| 319 | /* */ |
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| 320 | #define FT_CONFIG_OPTION_INCREMENTAL |
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| 321 | |||
| 322 | |||
| 323 | /*************************************************************************/ |
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| 324 | /* */ |
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| 325 | /* The size in bytes of the render pool used by the scan-line converter */ |
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| 326 | /* to do all of its work. */ |
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| 327 | /* */ |
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| 328 | /* This must be greater than 4KByte if you use FreeType to rasterize */ |
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| 329 | /* glyphs; otherwise, you may set it to zero to avoid unnecessary */ |
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| 330 | /* allocation of the render pool. */ |
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| 331 | /* */ |
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| 332 | #define FT_RENDER_POOL_SIZE 16384L |
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| 333 | |||
| 334 | |||
| 335 | /*************************************************************************/ |
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| 336 | /* */ |
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| 337 | /* FT_MAX_MODULES */ |
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| 338 | /* */ |
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| 339 | /* The maximum number of modules that can be registered in a single */ |
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| 340 | /* FreeType library object. 32 is the default. */ |
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| 341 | /* */ |
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| 342 | #define FT_MAX_MODULES 32 |
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| 343 | |||
| 344 | |||
| 345 | /*************************************************************************/ |
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| 346 | /* */ |
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| 347 | /* Debug level */ |
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| 348 | /* */ |
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| 349 | /* FreeType can be compiled in debug or trace mode. In debug mode, */ |
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| 350 | /* errors are reported through the `ftdebug' component. In trace */ |
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| 351 | /* mode, additional messages are sent to the standard output during */ |
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| 352 | /* execution. */ |
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| 353 | /* */ |
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| 354 | /* Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode. */ |
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| 355 | /* Define FT_DEBUG_LEVEL_TRACE to build it in trace mode. */ |
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| 356 | /* */ |
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| 357 | /* Don't define any of these macros to compile in `release' mode! */ |
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| 358 | /* */ |
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| 359 | /* Do not #undef these macros here since the build system might define */ |
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| 360 | /* them for certain configurations only. */ |
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| 361 | /* */ |
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| 362 | /* #define FT_DEBUG_LEVEL_ERROR */ |
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| 363 | /* #define FT_DEBUG_LEVEL_TRACE */ |
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| 364 | |||
| 365 | |||
| 366 | /*************************************************************************/ |
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| 367 | /* */ |
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| 368 | /* Memory Debugging */ |
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| 369 | /* */ |
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| 370 | /* FreeType now comes with an integrated memory debugger that is */ |
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| 371 | /* capable of detecting simple errors like memory leaks or double */ |
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| 372 | /* deletes. To compile it within your build of the library, you */ |
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| 373 | /* should define FT_DEBUG_MEMORY here. */ |
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| 374 | /* */ |
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| 375 | /* Note that the memory debugger is only activated at runtime when */ |
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| 376 | /* when the _environment_ variable `FT2_DEBUG_MEMORY' is defined also! */ |
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| 377 | /* */ |
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| 378 | /* Do not #undef this macro here since the build system might define */ |
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| 379 | /* it for certain configurations only. */ |
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| 380 | /* */ |
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| 381 | /* #define FT_DEBUG_MEMORY */ |
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| 382 | |||
| 383 | |||
| 384 | /*************************************************************************/ |
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| 385 | /* */ |
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| 386 | /* Module errors */ |
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| 387 | /* */ |
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| 388 | /* If this macro is set (which is _not_ the default), the higher byte */ |
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| 389 | /* of an error code gives the module in which the error has occurred, */ |
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| 390 | /* while the lower byte is the real error code. */ |
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| 391 | /* */ |
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| 392 | /* Setting this macro makes sense for debugging purposes only, since */ |
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| 393 | /* it would break source compatibility of certain programs that use */ |
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| 394 | /* FreeType 2. */ |
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| 395 | /* */ |
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| 396 | /* More details can be found in the files ftmoderr.h and fterrors.h. */ |
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| 397 | /* */ |
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| 398 | #undef FT_CONFIG_OPTION_USE_MODULE_ERRORS |
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| 399 | |||
| 400 | |||
| 401 | /*************************************************************************/ |
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| 402 | /* */ |
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| 403 | /* Position Independent Code */ |
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| 404 | /* */ |
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| 405 | /* If this macro is set (which is _not_ the default), FreeType2 will */ |
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| 406 | /* avoid creating constants that require address fixups. Instead the */ |
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| 407 | /* constants will be moved into a struct and additional intialization */ |
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| 408 | /* code will be used. */ |
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| 409 | /* */ |
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| 410 | /* Setting this macro is needed for systems that prohibit address */ |
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| 411 | /* fixups, such as BREW. */ |
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| 412 | /* */ |
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| 413 | /* #define FT_CONFIG_OPTION_PIC */ |
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| 414 | |||
| 415 | |||
| 416 | /*************************************************************************/ |
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| 417 | /*************************************************************************/ |
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| 418 | /**** ****/ |
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| 419 | /**** S F N T D R I V E R C O N F I G U R A T I O N ****/ |
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| 420 | /**** ****/ |
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| 421 | /*************************************************************************/ |
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| 422 | /*************************************************************************/ |
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| 423 | |||
| 424 | |||
| 425 | /*************************************************************************/ |
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| 426 | /* */ |
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| 427 | /* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support */ |
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| 428 | /* embedded bitmaps in all formats using the SFNT module (namely */ |
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| 429 | /* TrueType & OpenType). */ |
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| 430 | /* */ |
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| 431 | #define TT_CONFIG_OPTION_EMBEDDED_BITMAPS |
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| 432 | |||
| 433 | |||
| 434 | /*************************************************************************/ |
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| 435 | /* */ |
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| 436 | /* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to */ |
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| 437 | /* load and enumerate the glyph Postscript names in a TrueType or */ |
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| 438 | /* OpenType file. */ |
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| 439 | /* */ |
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| 440 | /* Note that when you do not compile the `PSNames' module by undefining */ |
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| 441 | /* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will */ |
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| 442 | /* contain additional code used to read the PS Names table from a font. */ |
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| 443 | /* */ |
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| 444 | /* (By default, the module uses `PSNames' to extract glyph names.) */ |
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| 445 | /* */ |
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| 446 | #define TT_CONFIG_OPTION_POSTSCRIPT_NAMES |
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| 447 | |||
| 448 | |||
| 449 | /*************************************************************************/ |
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| 450 | /* */ |
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| 451 | /* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to */ |
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| 452 | /* access the internal name table in a SFNT-based format like TrueType */ |
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| 453 | /* or OpenType. The name table contains various strings used to */ |
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| 454 | /* describe the font, like family name, copyright, version, etc. It */ |
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| 455 | /* does not contain any glyph name though. */ |
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| 456 | /* */ |
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| 457 | /* Accessing SFNT names is done through the functions declared in */ |
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| 458 | /* `freetype/ftsnames.h'. */ |
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| 459 | /* */ |
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| 460 | #define TT_CONFIG_OPTION_SFNT_NAMES |
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| 461 | |||
| 462 | |||
| 463 | /*************************************************************************/ |
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| 464 | /* */ |
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| 465 | /* TrueType CMap support */ |
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| 466 | /* */ |
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| 467 | /* Here you can fine-tune which TrueType CMap table format shall be */ |
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| 468 | /* supported. */ |
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| 469 | #define TT_CONFIG_CMAP_FORMAT_0 |
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| 470 | #define TT_CONFIG_CMAP_FORMAT_2 |
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| 471 | #define TT_CONFIG_CMAP_FORMAT_4 |
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| 472 | #define TT_CONFIG_CMAP_FORMAT_6 |
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| 473 | #define TT_CONFIG_CMAP_FORMAT_8 |
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| 474 | #define TT_CONFIG_CMAP_FORMAT_10 |
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| 475 | #define TT_CONFIG_CMAP_FORMAT_12 |
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| 476 | #define TT_CONFIG_CMAP_FORMAT_13 |
||
| 477 | #define TT_CONFIG_CMAP_FORMAT_14 |
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| 478 | |||
| 479 | |||
| 480 | /*************************************************************************/ |
||
| 481 | /*************************************************************************/ |
||
| 482 | /**** ****/ |
||
| 483 | /**** 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 ****/ |
||
| 484 | /**** ****/ |
||
| 485 | /*************************************************************************/ |
||
| 486 | /*************************************************************************/ |
||
| 487 | |||
| 488 | /*************************************************************************/ |
||
| 489 | /* */ |
||
| 490 | /* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile */ |
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| 491 | /* a bytecode interpreter in the TrueType driver. */ |
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| 492 | /* */ |
||
| 493 | /* By undefining this, you will only compile the code necessary to load */ |
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| 494 | /* TrueType glyphs without hinting. */ |
||
| 495 | /* */ |
||
| 496 | /* Do not #undef this macro here, since the build system might */ |
||
| 497 | /* define it for certain configurations only. */ |
||
| 498 | /* */ |
||
| 499 | #define TT_CONFIG_OPTION_BYTECODE_INTERPRETER |
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| 500 | |||
| 501 | |||
| 502 | /*************************************************************************/ |
||
| 503 | /* */ |
||
| 504 | /* If you define TT_CONFIG_OPTION_UNPATENTED_HINTING, a special version */ |
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| 505 | /* of the TrueType bytecode interpreter is used that doesn't implement */ |
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| 506 | /* any of the patented opcodes and algorithms. The patents related to */ |
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| 507 | /* TrueType hinting have expired worldwide since May 2010; this option */ |
||
| 508 | /* is now deprecated. */ |
||
| 509 | /* */ |
||
| 510 | /* Note that the TT_CONFIG_OPTION_UNPATENTED_HINTING macro is *ignored* */ |
||
| 511 | /* if you define TT_CONFIG_OPTION_BYTECODE_INTERPRETER; in other words, */ |
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| 512 | /* either define TT_CONFIG_OPTION_BYTECODE_INTERPRETER or */ |
||
| 513 | /* TT_CONFIG_OPTION_UNPATENTED_HINTING but not both at the same time. */ |
||
| 514 | /* */ |
||
| 515 | /* This macro is only useful for a small number of font files (mostly */ |
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| 516 | /* for Asian scripts) that require bytecode interpretation to properly */ |
||
| 517 | /* load glyphs. For all other fonts, this produces unpleasant results, */ |
||
| 518 | /* thus the unpatented interpreter is never used to load glyphs from */ |
||
| 519 | /* TrueType fonts unless one of the following two options is used. */ |
||
| 520 | /* */ |
||
| 521 | /* - The unpatented interpreter is explicitly activated by the user */ |
||
| 522 | /* through the FT_PARAM_TAG_UNPATENTED_HINTING parameter tag */ |
||
| 523 | /* when opening the FT_Face. */ |
||
| 524 | /* */ |
||
| 525 | /* - FreeType detects that the FT_Face corresponds to one of the */ |
||
| 526 | /* `trick' fonts (e.g., `Mingliu') it knows about. The font engine */ |
||
| 527 | /* contains a hard-coded list of font names and other matching */ |
||
| 528 | /* parameters (see function `tt_face_init' in file */ |
||
| 529 | /* `src/truetype/ttobjs.c'). */ |
||
| 530 | /* */ |
||
| 531 | /* Here a sample code snippet for using FT_PARAM_TAG_UNPATENTED_HINTING. */ |
||
| 532 | /* */ |
||
| 533 | /* { */ |
||
| 534 | /* FT_Parameter parameter; */ |
||
| 535 | /* FT_Open_Args open_args; */ |
||
| 536 | /* */ |
||
| 537 | /* */ |
||
| 538 | /* parameter.tag = FT_PARAM_TAG_UNPATENTED_HINTING; */ |
||
| 539 | /* */ |
||
| 540 | /* open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS; */ |
||
| 541 | /* open_args.pathname = my_font_pathname; */ |
||
| 542 | /* open_args.num_params = 1; */ |
||
| 543 | /* open_args.params = ¶meter; */ |
||
| 544 | /* */ |
||
| 545 | /* error = FT_Open_Face( library, &open_args, index, &face ); */ |
||
| 546 | /* ... */ |
||
| 547 | /* } */ |
||
| 548 | /* */ |
||
| 549 | /* #define TT_CONFIG_OPTION_UNPATENTED_HINTING */ |
||
| 550 | |||
| 551 | |||
| 552 | /*************************************************************************/ |
||
| 553 | /* */ |
||
| 554 | /* Define TT_CONFIG_OPTION_INTERPRETER_SWITCH to compile the TrueType */ |
||
| 555 | /* bytecode interpreter with a huge switch statement, rather than a call */ |
||
| 556 | /* table. This results in smaller and faster code for a number of */ |
||
| 557 | /* architectures. */ |
||
| 558 | /* */ |
||
| 559 | /* Note however that on some compiler/processor combinations, undefining */ |
||
| 560 | /* this macro will generate faster, though larger, code. */ |
||
| 561 | /* */ |
||
| 562 | #define TT_CONFIG_OPTION_INTERPRETER_SWITCH |
||
| 563 | |||
| 564 | |||
| 565 | /*************************************************************************/ |
||
| 566 | /* */ |
||
| 567 | /* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the */ |
||
| 568 | /* TrueType glyph loader to use Apple's definition of how to handle */ |
||
| 569 | /* component offsets in composite glyphs. */ |
||
| 570 | /* */ |
||
| 571 | /* Apple and MS disagree on the default behavior of component offsets */ |
||
| 572 | /* in composites. Apple says that they should be scaled by the scaling */ |
||
| 573 | /* factors in the transformation matrix (roughly, it's more complex) */ |
||
| 574 | /* while MS says they should not. OpenType defines two bits in the */ |
||
| 575 | /* composite flags array which can be used to disambiguate, but old */ |
||
| 576 | /* fonts will not have them. */ |
||
| 577 | /* */ |
||
| 578 | /* http://partners.adobe.com/asn/developer/opentype/glyf.html */ |
||
| 579 | /* http://fonts.apple.com/TTRefMan/RM06/Chap6glyf.html */ |
||
| 580 | /* */ |
||
| 581 | #undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED |
||
| 582 | |||
| 583 | |||
| 584 | /*************************************************************************/ |
||
| 585 | /* */ |
||
| 586 | /* Define TT_CONFIG_OPTION_GX_VAR_SUPPORT if you want to include */ |
||
| 587 | /* support for Apple's distortable font technology (fvar, gvar, cvar, */ |
||
| 588 | /* and avar tables). This has many similarities to Type 1 Multiple */ |
||
| 589 | /* Masters support. */ |
||
| 590 | /* */ |
||
| 591 | #define TT_CONFIG_OPTION_GX_VAR_SUPPORT |
||
| 592 | |||
| 593 | |||
| 594 | /*************************************************************************/ |
||
| 595 | /* */ |
||
| 596 | /* Define TT_CONFIG_OPTION_BDF if you want to include support for */ |
||
| 597 | /* an embedded `BDF ' table within SFNT-based bitmap formats. */ |
||
| 598 | /* */ |
||
| 599 | #define TT_CONFIG_OPTION_BDF |
||
| 600 | |||
| 601 | |||
| 602 | /*************************************************************************/ |
||
| 603 | /*************************************************************************/ |
||
| 604 | /**** ****/ |
||
| 605 | /**** T Y P E 1 D R I V E R C O N F I G U R A T I O N ****/ |
||
| 606 | /**** ****/ |
||
| 607 | /*************************************************************************/ |
||
| 608 | /*************************************************************************/ |
||
| 609 | |||
| 610 | |||
| 611 | /*************************************************************************/ |
||
| 612 | /* */ |
||
| 613 | /* T1_MAX_DICT_DEPTH is the maximal depth of nest dictionaries and */ |
||
| 614 | /* arrays in the Type 1 stream (see t1load.c). A minimum of 4 is */ |
||
| 615 | /* required. */ |
||
| 616 | /* */ |
||
| 617 | #define T1_MAX_DICT_DEPTH 5 |
||
| 618 | |||
| 619 | |||
| 620 | /*************************************************************************/ |
||
| 621 | /* */ |
||
| 622 | /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */ |
||
| 623 | /* calls during glyph loading. */ |
||
| 624 | /* */ |
||
| 625 | #define T1_MAX_SUBRS_CALLS 16 |
||
| 626 | |||
| 627 | |||
| 628 | /*************************************************************************/ |
||
| 629 | /* */ |
||
| 630 | /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */ |
||
| 631 | /* minimum of 16 is required. */ |
||
| 632 | /* */ |
||
| 633 | /* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256. */ |
||
| 634 | /* */ |
||
| 635 | #define T1_MAX_CHARSTRINGS_OPERANDS 256 |
||
| 636 | |||
| 637 | |||
| 638 | /*************************************************************************/ |
||
| 639 | /* */ |
||
| 640 | /* Define this configuration macro if you want to prevent the */ |
||
| 641 | /* compilation of `t1afm', which is in charge of reading Type 1 AFM */ |
||
| 642 | /* files into an existing face. Note that if set, the T1 driver will be */ |
||
| 643 | /* unable to produce kerning distances. */ |
||
| 644 | /* */ |
||
| 645 | #undef T1_CONFIG_OPTION_NO_AFM |
||
| 646 | |||
| 647 | |||
| 648 | /*************************************************************************/ |
||
| 649 | /* */ |
||
| 650 | /* Define this configuration macro if you want to prevent the */ |
||
| 651 | /* compilation of the Multiple Masters font support in the Type 1 */ |
||
| 652 | /* driver. */ |
||
| 653 | /* */ |
||
| 654 | #undef T1_CONFIG_OPTION_NO_MM_SUPPORT |
||
| 655 | |||
| 656 | |||
| 657 | /*************************************************************************/ |
||
| 658 | /*************************************************************************/ |
||
| 659 | /**** ****/ |
||
| 660 | /**** 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 ****/ |
||
| 661 | /**** ****/ |
||
| 662 | /*************************************************************************/ |
||
| 663 | /*************************************************************************/ |
||
| 664 | |||
| 665 | |||
| 666 | /*************************************************************************/ |
||
| 667 | /* */ |
||
| 668 | /* Compile autofit module with CJK (Chinese, Japanese, Korean) script */ |
||
| 669 | /* support. */ |
||
| 670 | /* */ |
||
| 671 | #define AF_CONFIG_OPTION_CJK |
||
| 672 | |||
| 673 | /*************************************************************************/ |
||
| 674 | /* */ |
||
| 675 | /* Compile autofit module with Indic script support. */ |
||
| 676 | /* */ |
||
| 677 | #define AF_CONFIG_OPTION_INDIC |
||
| 678 | |||
| 679 | /* */ |
||
| 680 | |||
| 681 | |||
| 682 | /* |
||
| 683 | * Define this variable if you want to keep the layout of internal |
||
| 684 | * structures that was used prior to FreeType 2.2. This also compiles in |
||
| 685 | * a few obsolete functions to avoid linking problems on typical Unix |
||
| 686 | * distributions. |
||
| 687 | * |
||
| 688 | * For embedded systems or building a new distribution from scratch, it |
||
| 689 | * is recommended to disable the macro since it reduces the library's code |
||
| 690 | * size and activates a few memory-saving optimizations as well. |
||
| 691 | */ |
||
| 692 | #define FT_CONFIG_OPTION_OLD_INTERNALS |
||
| 693 | |||
| 694 | |||
| 695 | /* |
||
| 696 | * To detect legacy cache-lookup call from a rogue client (<= 2.1.7), |
||
| 697 | * we restrict the number of charmaps in a font. The current API of |
||
| 698 | * FTC_CMapCache_Lookup() takes cmap_index & charcode, but old API |
||
| 699 | * takes charcode only. To determine the passed value is for cmap_index |
||
| 700 | * or charcode, the possible cmap_index is restricted not to exceed |
||
| 701 | * the minimum possible charcode by a rogue client. It is also very |
||
| 702 | * unlikely that a rogue client is interested in Unicode values 0 to 15. |
||
| 703 | * |
||
| 704 | * NOTE: The original threshold was 4 deduced from popular number of |
||
| 705 | * cmap subtables in UCS-4 TrueType fonts, but now it is not |
||
| 706 | * irregular for OpenType fonts to have more than 4 subtables, |
||
| 707 | * because variation selector subtables are available for Apple |
||
| 708 | * and Microsoft platforms. |
||
| 709 | */ |
||
| 710 | |||
| 711 | #ifdef FT_CONFIG_OPTION_OLD_INTERNALS |
||
| 712 | #define FT_MAX_CHARMAP_CACHEABLE 15 |
||
| 713 | #endif |
||
| 714 | |||
| 715 | |||
| 716 | /* |
||
| 717 | * This macro is defined if either unpatented or native TrueType |
||
| 718 | * hinting is requested by the definitions above. |
||
| 719 | */ |
||
| 720 | #ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER |
||
| 721 | #define TT_USE_BYTECODE_INTERPRETER |
||
| 722 | #undef TT_CONFIG_OPTION_UNPATENTED_HINTING |
||
| 723 | #elif defined TT_CONFIG_OPTION_UNPATENTED_HINTING |
||
| 724 | #define TT_USE_BYTECODE_INTERPRETER |
||
| 725 | #endif |
||
| 726 | |||
| 727 | FT_END_HEADER |
||
| 728 | |||
| 729 | |||
| 730 | #endif /* __FTOPTION_H__ */ |
||
| 731 | |||
| 732 | |||
| 733 | /* END */ |