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919 lines
56 KiB
919 lines
56 KiB
/***************************************************************************/ |
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/* */ |
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/* ftoption.h (for development) */ |
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/* */ |
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/* User-selectable configuration macros (specification only). */ |
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/* */ |
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/* Copyright 1996-2016 by */ |
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
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/* */ |
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/* This file is part of the FreeType project, and may only be used, */ |
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/* modified, and distributed under the terms of the FreeType project */ |
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
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/* this file you indicate that you have read the license and */ |
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/* understand and accept it fully. */ |
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/* */ |
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/***************************************************************************/ |
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#ifndef FTOPTION_H_ |
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#define FTOPTION_H_ |
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#include <ft2build.h> |
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FT_BEGIN_HEADER |
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/*************************************************************************/ |
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/* */ |
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/* USER-SELECTABLE CONFIGURATION MACROS */ |
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/* */ |
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/* This file contains the default configuration macro definitions for */ |
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/* a standard build of the FreeType library. There are three ways to */ |
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/* use this file to build project-specific versions of the library: */ |
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/* */ |
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/* - You can modify this file by hand, but this is not recommended in */ |
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/* cases where you would like to build several versions of the */ |
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/* library from a single source directory. */ |
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/* */ |
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/* - You can put a copy of this file in your build directory, more */ |
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/* precisely in `$BUILD/freetype/config/ftoption.h', where `$BUILD' */ |
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/* is the name of a directory that is included _before_ the FreeType */ |
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/* include path during compilation. */ |
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/* */ |
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/* The default FreeType Makefiles and Jamfiles use the build */ |
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/* directory `builds/<system>' by default, but you can easily change */ |
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/* that for your own projects. */ |
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/* */ |
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/* - Copy the file <ft2build.h> to `$BUILD/ft2build.h' and modify it */ |
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/* slightly to pre-define the macro FT_CONFIG_OPTIONS_H used to */ |
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/* locate this file during the build. For example, */ |
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/* */ |
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/* #define FT_CONFIG_OPTIONS_H <myftoptions.h> */ |
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/* #include <freetype/config/ftheader.h> */ |
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/* */ |
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/* will use `$BUILD/myftoptions.h' instead of this file for macro */ |
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/* definitions. */ |
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/* */ |
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/* Note also that you can similarly pre-define the macro */ |
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/* FT_CONFIG_MODULES_H used to locate the file listing of the modules */ |
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/* that are statically linked to the library at compile time. By */ |
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/* default, this file is <freetype/config/ftmodule.h>. */ |
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/* */ |
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/* We highly recommend using the third method whenever possible. */ |
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/* */ |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/**** ****/ |
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/**** 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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/**** ****/ |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/* */ |
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/* If you enable this configuration option, FreeType recognizes an */ |
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/* environment variable called `FREETYPE_PROPERTIES', which can be used */ |
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/* to control the various font drivers and modules. The controllable */ |
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/* properties are listed in the section `Controlling FreeType Modules' */ |
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/* in the reference's table of contents; currently there are properties */ |
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/* for the auto-hinter (file `ftautoh.h'), CFF (file `ftcffdrv.h'), and */ |
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/* TrueType (file `ftttdrv.h'). */ |
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/* */ |
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/* `FREETYPE_PROPERTIES' has the following syntax form (broken here into */ |
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/* multiple lines for better readability). */ |
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/* */ |
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/* <optional whitespace> */ |
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/* <module-name1> ':' */ |
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/* <property-name1> '=' <property-value1> */ |
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/* <whitespace> */ |
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/* <module-name2> ':' */ |
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/* <property-name2> '=' <property-value2> */ |
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/* ... */ |
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/* */ |
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/* Example: */ |
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/* */ |
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/* FREETYPE_PROPERTIES=truetype:interpreter-version=35 \ */ |
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/* cff:no-stem-darkening=1 \ */ |
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/* autofitter:warping=1 */ |
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/* */ |
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#define FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES |
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/*************************************************************************/ |
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/* */ |
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/* Uncomment the line below if you want to activate sub-pixel rendering */ |
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/* (a.k.a. LCD rendering, or ClearType) in this build of the library. */ |
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/* */ |
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/* Note that this feature is covered by several Microsoft patents */ |
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/* and should not be activated in any default build of the library. */ |
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/* */ |
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/* This macro has no impact on the FreeType API, only on its */ |
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/* _implementation_. For example, using FT_RENDER_MODE_LCD when calling */ |
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/* FT_Render_Glyph still generates a bitmap that is 3 times wider than */ |
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/* the original size in case this macro isn't defined; however, each */ |
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/* triplet of subpixels has R=G=B. */ |
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/* */ |
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/* This is done to allow FreeType clients to run unmodified, forcing */ |
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/* them to display normal gray-level anti-aliased glyphs. */ |
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/* */ |
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#define FT_CONFIG_OPTION_SUBPIXEL_RENDERING |
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/*************************************************************************/ |
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/* */ |
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/* Many compilers provide a non-ANSI 64-bit data type that can be used */ |
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/* by FreeType to speed up some computations. However, this will create */ |
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/* some problems when compiling the library in strict ANSI mode. */ |
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/* */ |
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/* For this reason, the use of 64-bit integers is normally disabled when */ |
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/* the __STDC__ macro is defined. You can however disable this by */ |
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/* defining the macro FT_CONFIG_OPTION_FORCE_INT64 here. */ |
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/* */ |
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/* For most compilers, this will only create compilation warnings when */ |
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/* building the library. */ |
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/* */ |
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/* ObNote: The compiler-specific 64-bit integers are detected in the */ |
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/* file `ftconfig.h' either statically or through the */ |
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/* `configure' script on supported platforms. */ |
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/* */ |
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#undef FT_CONFIG_OPTION_FORCE_INT64 |
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/*************************************************************************/ |
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/* */ |
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/* If this macro is defined, do not try to use an assembler version of */ |
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/* performance-critical functions (e.g. FT_MulFix). You should only do */ |
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/* that to verify that the assembler function works properly, or to */ |
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/* execute benchmark tests of the various implementations. */ |
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/* #define FT_CONFIG_OPTION_NO_ASSEMBLER */ |
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/*************************************************************************/ |
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/* */ |
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/* If this macro is defined, try to use an inlined assembler version of */ |
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/* the `FT_MulFix' function, which is a `hotspot' when loading and */ |
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/* hinting glyphs, and which should be executed as fast as possible. */ |
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/* */ |
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/* Note that if your compiler or CPU is not supported, this will default */ |
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/* to the standard and portable implementation found in `ftcalc.c'. */ |
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/* */ |
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#define FT_CONFIG_OPTION_INLINE_MULFIX |
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/*************************************************************************/ |
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/* */ |
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/* LZW-compressed file support. */ |
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/* */ |
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/* FreeType now handles font files that have been compressed with the */ |
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/* `compress' program. This is mostly used to parse many of the PCF */ |
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/* files that come with various X11 distributions. The implementation */ |
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/* uses NetBSD's `zopen' to partially uncompress the file on the fly */ |
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/* (see src/lzw/ftgzip.c). */ |
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/* */ |
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/* Define this macro if you want to enable this `feature'. */ |
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/* */ |
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#define FT_CONFIG_OPTION_USE_LZW |
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/*************************************************************************/ |
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/* */ |
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/* Gzip-compressed file support. */ |
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/* */ |
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/* FreeType now handles font files that have been compressed with the */ |
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/* `gzip' program. This is mostly used to parse many of the PCF files */ |
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/* that come with XFree86. The implementation uses `zlib' to */ |
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/* partially uncompress the file on the fly (see src/gzip/ftgzip.c). */ |
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/* */ |
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/* Define this macro if you want to enable this `feature'. See also */ |
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/* the macro FT_CONFIG_OPTION_SYSTEM_ZLIB below. */ |
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/* */ |
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#define FT_CONFIG_OPTION_USE_ZLIB |
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/*************************************************************************/ |
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/* */ |
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/* ZLib library selection */ |
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/* */ |
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/* This macro is only used when FT_CONFIG_OPTION_USE_ZLIB is defined. */ |
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/* It allows FreeType's `ftgzip' component to link to the system's */ |
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/* installation of the ZLib library. This is useful on systems like */ |
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/* Unix or VMS where it generally is already available. */ |
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/* */ |
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/* If you let it undefined, the component will use its own copy */ |
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/* of the zlib sources instead. These have been modified to be */ |
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/* included directly within the component and *not* export external */ |
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/* function names. This allows you to link any program with FreeType */ |
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/* _and_ ZLib without linking conflicts. */ |
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/* */ |
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/* Do not #undef this macro here since the build system might define */ |
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/* it for certain configurations only. */ |
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/* */ |
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/* #define FT_CONFIG_OPTION_SYSTEM_ZLIB */ |
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/*************************************************************************/ |
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/* */ |
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/* Bzip2-compressed file support. */ |
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/* */ |
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/* FreeType now handles font files that have been compressed with the */ |
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/* `bzip2' program. This is mostly used to parse many of the PCF */ |
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/* files that come with XFree86. The implementation uses `libbz2' to */ |
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/* partially uncompress the file on the fly (see src/bzip2/ftbzip2.c). */ |
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/* Contrary to gzip, bzip2 currently is not included and need to use */ |
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/* the system available bzip2 implementation. */ |
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/* */ |
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/* Define this macro if you want to enable this `feature'. */ |
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/* */ |
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#define FT_CONFIG_OPTION_USE_BZIP2 |
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/*************************************************************************/ |
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/* */ |
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/* Define to disable the use of file stream functions and types, FILE, */ |
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/* fopen() etc. Enables the use of smaller system libraries on embedded */ |
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/* systems that have multiple system libraries, some with or without */ |
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/* file stream support, in the cases where file stream support is not */ |
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/* necessary such as memory loading of font files. */ |
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/* */ |
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/* #define FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT */ |
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/*************************************************************************/ |
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/* */ |
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/* PNG bitmap support. */ |
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/* */ |
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/* FreeType now handles loading color bitmap glyphs in the PNG format. */ |
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/* This requires help from the external libpng library. Uncompressed */ |
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/* color bitmaps do not need any external libraries and will be */ |
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/* supported regardless of this configuration. */ |
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/* */ |
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/* Define this macro if you want to enable this `feature'. */ |
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/* */ |
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#define FT_CONFIG_OPTION_USE_PNG |
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/*************************************************************************/ |
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/* */ |
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/* HarfBuzz support. */ |
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/* */ |
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/* FreeType uses the HarfBuzz library to improve auto-hinting of */ |
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/* OpenType fonts. If available, many glyphs not directly addressable */ |
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/* by a font's character map will be hinted also. */ |
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/* */ |
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/* Define this macro if you want to enable this `feature'. */ |
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/* */ |
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#define FT_CONFIG_OPTION_USE_HARFBUZZ |
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/*************************************************************************/ |
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/* */ |
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/* DLL export compilation */ |
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/* */ |
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/* When compiling FreeType as a DLL, some systems/compilers need a */ |
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/* special keyword in front OR after the return type of function */ |
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/* declarations. */ |
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/* */ |
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/* Two macros are used within the FreeType source code to define */ |
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/* exported library functions: FT_EXPORT and FT_EXPORT_DEF. */ |
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/* */ |
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/* FT_EXPORT( return_type ) */ |
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/* */ |
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/* is used in a function declaration, as in */ |
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/* */ |
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/* FT_EXPORT( FT_Error ) */ |
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/* FT_Init_FreeType( FT_Library* alibrary ); */ |
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/* */ |
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/* */ |
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/* FT_EXPORT_DEF( return_type ) */ |
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/* */ |
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/* is used in a function definition, as in */ |
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/* */ |
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/* FT_EXPORT_DEF( FT_Error ) */ |
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/* FT_Init_FreeType( FT_Library* alibrary ) */ |
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/* { */ |
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/* ... some code ... */ |
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/* return FT_Err_Ok; */ |
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/* } */ |
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/* */ |
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/* You can provide your own implementation of FT_EXPORT and */ |
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/* FT_EXPORT_DEF here if you want. If you leave them undefined, they */ |
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/* will be later automatically defined as `extern return_type' to */ |
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/* allow normal compilation. */ |
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/* */ |
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/* Do not #undef these macros here since the build system might define */ |
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/* them for certain configurations only. */ |
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/* */ |
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/* #define FT_EXPORT(x) extern x */ |
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/* #define FT_EXPORT_DEF(x) x */ |
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/*************************************************************************/ |
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/* */ |
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/* Glyph Postscript Names handling */ |
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/* */ |
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/* By default, FreeType 2 is compiled with the `psnames' module. This */ |
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/* module is in charge of converting a glyph name string into a */ |
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/* Unicode value, or return a Macintosh standard glyph name for the */ |
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/* use with the TrueType `post' table. */ |
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/* */ |
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/* Undefine this macro if you do not want `psnames' compiled in your */ |
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/* build of FreeType. This has the following effects: */ |
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/* */ |
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/* - The TrueType driver will provide its own set of glyph names, */ |
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/* if you build it to support postscript names in the TrueType */ |
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/* `post' table. */ |
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/* */ |
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/* - The Type 1 driver will not be able to synthesize a Unicode */ |
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/* charmap out of the glyphs found in the fonts. */ |
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/* */ |
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/* You would normally undefine this configuration macro when building */ |
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/* a version of FreeType that doesn't contain a Type 1 or CFF driver. */ |
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/* */ |
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#define FT_CONFIG_OPTION_POSTSCRIPT_NAMES |
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/*************************************************************************/ |
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/* */ |
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/* Postscript Names to Unicode Values support */ |
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/* */ |
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/* By default, FreeType 2 is built with the `PSNames' module compiled */ |
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/* in. Among other things, the module is used to convert a glyph name */ |
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/* into a Unicode value. This is especially useful in order to */ |
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/* synthesize on the fly a Unicode charmap from the CFF/Type 1 driver */ |
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/* through a big table named the `Adobe Glyph List' (AGL). */ |
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/* */ |
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/* Undefine this macro if you do not want the Adobe Glyph List */ |
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/* compiled in your `PSNames' module. The Type 1 driver will not be */ |
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/* able to synthesize a Unicode charmap out of the glyphs found in the */ |
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/* fonts. */ |
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/* */ |
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#define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST |
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/*************************************************************************/ |
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/* */ |
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/* Support for Mac fonts */ |
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/* */ |
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/* Define this macro if you want support for outline fonts in Mac */ |
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/* format (mac dfont, mac resource, macbinary containing a mac */ |
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/* resource) on non-Mac platforms. */ |
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/* */ |
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/* Note that the `FOND' resource isn't checked. */ |
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/* */ |
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#define FT_CONFIG_OPTION_MAC_FONTS |
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/*************************************************************************/ |
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/* */ |
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/* Guessing methods to access embedded resource forks */ |
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/* */ |
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/* Enable extra Mac fonts support on non-Mac platforms (e.g. */ |
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/* GNU/Linux). */ |
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/* */ |
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/* Resource forks which include fonts data are stored sometimes in */ |
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/* locations which users or developers don't expected. In some cases, */ |
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/* resource forks start with some offset from the head of a file. In */ |
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/* other cases, the actual resource fork is stored in file different */ |
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/* from what the user specifies. If this option is activated, */ |
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/* FreeType tries to guess whether such offsets or different file */ |
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/* names must be used. */ |
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/* */ |
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/* Note that normal, direct access of resource forks is controlled via */ |
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/* the FT_CONFIG_OPTION_MAC_FONTS option. */ |
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/* */ |
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#ifdef FT_CONFIG_OPTION_MAC_FONTS |
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#define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK |
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#endif |
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/*************************************************************************/ |
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/* */ |
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/* Allow the use of FT_Incremental_Interface to load typefaces that */ |
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/* contain no glyph data, but supply it via a callback function. */ |
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/* This is required by clients supporting document formats which */ |
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/* supply font data incrementally as the document is parsed, such */ |
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/* as the Ghostscript interpreter for the PostScript language. */ |
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/* */ |
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#define FT_CONFIG_OPTION_INCREMENTAL |
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/*************************************************************************/ |
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/* */ |
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/* The size in bytes of the render pool used by the scan-line converter */ |
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/* to do all of its work. */ |
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/* */ |
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#define FT_RENDER_POOL_SIZE 16384L |
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/*************************************************************************/ |
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/* */ |
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/* FT_MAX_MODULES */ |
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/* */ |
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/* The maximum number of modules that can be registered in a single */ |
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/* FreeType library object. 32 is the default. */ |
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/* */ |
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#define FT_MAX_MODULES 32 |
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/*************************************************************************/ |
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/* */ |
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/* Debug level */ |
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/* */ |
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/* FreeType can be compiled in debug or trace mode. In debug mode, */ |
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/* errors are reported through the `ftdebug' component. In trace */ |
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/* mode, additional messages are sent to the standard output during */ |
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/* execution. */ |
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/* */ |
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/* Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode. */ |
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/* Define FT_DEBUG_LEVEL_TRACE to build it in trace mode. */ |
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/* */ |
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/* Don't define any of these macros to compile in `release' mode! */ |
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/* */ |
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/* Do not #undef these macros here since the build system might define */ |
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/* them for certain configurations only. */ |
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/* */ |
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#define FT_DEBUG_LEVEL_ERROR |
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#define FT_DEBUG_LEVEL_TRACE |
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/*************************************************************************/ |
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/* */ |
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/* Autofitter debugging */ |
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/* */ |
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/* If FT_DEBUG_AUTOFIT is defined, FreeType provides some means to */ |
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/* control the autofitter behaviour for debugging purposes with global */ |
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/* boolean variables (consequently, you should *never* enable this */ |
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/* while compiling in `release' mode): */ |
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/* */ |
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/* _af_debug_disable_horz_hints */ |
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/* _af_debug_disable_vert_hints */ |
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/* _af_debug_disable_blue_hints */ |
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/* */ |
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/* Additionally, the following functions provide dumps of various */ |
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/* internal autofit structures to stdout (using `printf'): */ |
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/* */ |
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/* af_glyph_hints_dump_points */ |
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/* af_glyph_hints_dump_segments */ |
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/* af_glyph_hints_dump_edges */ |
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/* af_glyph_hints_get_num_segments */ |
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/* af_glyph_hints_get_segment_offset */ |
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/* */ |
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/* As an argument, they use another global variable: */ |
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/* */ |
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/* _af_debug_hints */ |
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/* */ |
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/* Please have a look at the `ftgrid' demo program to see how those */ |
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/* variables and macros should be used. */ |
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/* */ |
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/* Do not #undef these macros here since the build system might define */ |
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/* them for certain configurations only. */ |
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/* */ |
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#define FT_DEBUG_AUTOFIT |
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/*************************************************************************/ |
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/* */ |
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/* Memory Debugging */ |
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/* */ |
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/* FreeType now comes with an integrated memory debugger that is */ |
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/* capable of detecting simple errors like memory leaks or double */ |
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/* deletes. To compile it within your build of the library, you */ |
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/* should define FT_DEBUG_MEMORY here. */ |
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/* */ |
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/* Note that the memory debugger is only activated at runtime when */ |
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/* when the _environment_ variable `FT2_DEBUG_MEMORY' is defined also! */ |
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/* */ |
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/* Do not #undef this macro here since the build system might define */ |
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/* it for certain configurations only. */ |
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/* */ |
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#define FT_DEBUG_MEMORY |
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/*************************************************************************/ |
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/* */ |
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/* Module errors */ |
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/* */ |
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/* If this macro is set (which is _not_ the default), the higher byte */ |
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/* of an error code gives the module in which the error has occurred, */ |
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/* while the lower byte is the real error code. */ |
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/* */ |
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/* Setting this macro makes sense for debugging purposes only, since */ |
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/* it would break source compatibility of certain programs that use */ |
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/* FreeType 2. */ |
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/* */ |
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/* More details can be found in the files ftmoderr.h and fterrors.h. */ |
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/* */ |
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#undef FT_CONFIG_OPTION_USE_MODULE_ERRORS |
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/*************************************************************************/ |
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/* */ |
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/* Position Independent Code */ |
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/* */ |
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/* If this macro is set (which is _not_ the default), FreeType2 will */ |
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/* avoid creating constants that require address fixups. Instead the */ |
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/* constants will be moved into a struct and additional intialization */ |
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/* code will be used. */ |
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/* */ |
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/* Setting this macro is needed for systems that prohibit address */ |
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/* fixups, such as BREW. */ |
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/* */ |
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/* #define FT_CONFIG_OPTION_PIC */ |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/**** ****/ |
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/**** 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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/**** ****/ |
|
/*************************************************************************/ |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/* */ |
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/* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support */ |
|
/* embedded bitmaps in all formats using the SFNT module (namely */ |
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/* TrueType & OpenType). */ |
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/* */ |
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#define TT_CONFIG_OPTION_EMBEDDED_BITMAPS |
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/*************************************************************************/ |
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/* */ |
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/* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to */ |
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/* load and enumerate the glyph Postscript names in a TrueType or */ |
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/* OpenType file. */ |
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/* */ |
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/* Note that when you do not compile the `PSNames' module by undefining */ |
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/* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will */ |
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/* contain additional code used to read the PS Names table from a font. */ |
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/* */ |
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/* (By default, the module uses `PSNames' to extract glyph names.) */ |
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/* */ |
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#define TT_CONFIG_OPTION_POSTSCRIPT_NAMES |
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/*************************************************************************/ |
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/* */ |
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/* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to */ |
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/* access the internal name table in a SFNT-based format like TrueType */ |
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/* or OpenType. The name table contains various strings used to */ |
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/* describe the font, like family name, copyright, version, etc. It */ |
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/* does not contain any glyph name though. */ |
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/* */ |
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/* Accessing SFNT names is done through the functions declared in */ |
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/* `ftsnames.h'. */ |
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/* */ |
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#define TT_CONFIG_OPTION_SFNT_NAMES |
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/*************************************************************************/ |
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/* */ |
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/* TrueType CMap support */ |
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/* */ |
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/* Here you can fine-tune which TrueType CMap table format shall be */ |
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/* supported. */ |
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#define TT_CONFIG_CMAP_FORMAT_0 |
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#define TT_CONFIG_CMAP_FORMAT_2 |
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#define TT_CONFIG_CMAP_FORMAT_4 |
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#define TT_CONFIG_CMAP_FORMAT_6 |
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#define TT_CONFIG_CMAP_FORMAT_8 |
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#define TT_CONFIG_CMAP_FORMAT_10 |
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#define TT_CONFIG_CMAP_FORMAT_12 |
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#define TT_CONFIG_CMAP_FORMAT_13 |
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#define TT_CONFIG_CMAP_FORMAT_14 |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/**** ****/ |
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/**** 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 ****/ |
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/**** ****/ |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/* */ |
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/* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile */ |
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/* a bytecode interpreter in the TrueType driver. */ |
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/* */ |
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/* By undefining this, you will only compile the code necessary to load */ |
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/* TrueType glyphs without hinting. */ |
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/* */ |
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/* Do not #undef this macro here, since the build system might */ |
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/* define it for certain configurations only. */ |
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/* */ |
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#define TT_CONFIG_OPTION_BYTECODE_INTERPRETER |
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/*************************************************************************/ |
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/* */ |
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/* Define TT_CONFIG_OPTION_SUBPIXEL_HINTING if you want to compile */ |
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/* subpixel hinting support into the TrueType driver. This modifies the */ |
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/* TrueType hinting mechanism when anything but FT_RENDER_MODE_MONO is */ |
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/* requested. */ |
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/* */ |
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/* In particular, it modifies the bytecode interpreter to interpret (or */ |
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/* not) instructions in a certain way so that all TrueType fonts look */ |
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/* like they do in a Windows ClearType (DirectWrite) environment. See */ |
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/* [1] for a technical overview on what this means. See `ttinterp.h' */ |
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/* for more details on the LEAN option. */ |
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/* */ |
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/* There are three options. */ |
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/* */ |
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/* 1. This option is associated with the `Infinality' moniker. */ |
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/* Contributed by an individual nicknamed Infinality with the goal of */ |
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/* making TrueType fonts render better than on Windows. A high */ |
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/* amount of configurability and flexibility, down to rules for */ |
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/* single glyphs in fonts, but also very slow. Its experimental and */ |
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/* slow nature and the original developer losing interest meant that */ |
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/* this option was never enabled in default builds. */ |
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/* */ |
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/* 2. The new default mode for the TrueType driver. The Infinality code */ |
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/* base was stripped to the bare minimum and all configurability */ |
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/* removed in the name of speed and simplicity. The configurability */ |
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/* was mainly aimed at legacy fonts like Arial, Times New Roman, or */ |
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/* Courier. Legacy fonts are fonts that modify vertical stems to */ |
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/* achieve clean black-and-white bitmaps. The new mode focuses on */ |
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/* applying a minimal set of rules to all fonts indiscriminately so */ |
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/* that modern and web fonts render well while legacy fonts render */ |
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/* okay. */ |
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/* */ |
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/* 3. Compile both. */ |
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/* */ |
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/* By undefining these, you get rendering behavior like on Windows */ |
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/* without ClearType, i.e., Windows XP without ClearType enabled and */ |
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/* Win9x (interpreter version v35). Or not, depending on how much */ |
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/* hinting blood and testing tears the font designer put into a given */ |
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/* font. If you define one or both subpixel hinting options, you can */ |
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/* switch between between v35 and the ones you define. */ |
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/* */ |
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/* This option requires TT_CONFIG_OPTION_BYTECODE_INTERPRETER to be */ |
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/* defined. */ |
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/* */ |
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/* [1] http://www.microsoft.com/typography/cleartype/truetypecleartype.aspx */ |
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/* */ |
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/* #define TT_CONFIG_OPTION_SUBPIXEL_HINTING 1 */ |
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/* #define TT_CONFIG_OPTION_SUBPIXEL_HINTING 2 */ |
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#define TT_CONFIG_OPTION_SUBPIXEL_HINTING ( 1 | 2 ) |
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/*************************************************************************/ |
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/* */ |
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/* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the */ |
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/* TrueType glyph loader to use Apple's definition of how to handle */ |
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/* component offsets in composite glyphs. */ |
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/* */ |
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/* Apple and MS disagree on the default behavior of component offsets */ |
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/* in composites. Apple says that they should be scaled by the scaling */ |
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/* factors in the transformation matrix (roughly, it's more complex) */ |
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/* while MS says they should not. OpenType defines two bits in the */ |
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/* composite flags array which can be used to disambiguate, but old */ |
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/* fonts will not have them. */ |
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/* */ |
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/* http://www.microsoft.com/typography/otspec/glyf.htm */ |
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/* https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6glyf.html */ |
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/* */ |
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#undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED |
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/*************************************************************************/ |
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/* */ |
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/* Define TT_CONFIG_OPTION_GX_VAR_SUPPORT if you want to include */ |
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/* support for Apple's distortable font technology (fvar, gvar, cvar, */ |
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/* and avar tables). This has many similarities to Type 1 Multiple */ |
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/* Masters support. */ |
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/* */ |
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#define TT_CONFIG_OPTION_GX_VAR_SUPPORT |
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/*************************************************************************/ |
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/* */ |
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/* Define TT_CONFIG_OPTION_BDF if you want to include support for */ |
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/* an embedded `BDF ' table within SFNT-based bitmap formats. */ |
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/* */ |
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#define TT_CONFIG_OPTION_BDF |
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/*************************************************************************/ |
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/* */ |
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/* Option TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES controls the maximum */ |
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/* number of bytecode instructions executed for a single run of the */ |
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/* bytecode interpreter, needed to prevent infinite loops. You don't */ |
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/* want to change this except for very special situations (e.g., making */ |
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/* a library fuzzer spend less time to handle broken fonts). */ |
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/* */ |
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/* It is not expected that this value is ever modified by a configuring */ |
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/* script; instead, it gets surrounded with #ifndef ... #endif so that */ |
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/* the value can be set as a preprocessor option on the compiler's */ |
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/* command line. */ |
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/* */ |
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#ifndef TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES |
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#define TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES 1000000L |
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#endif |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/**** ****/ |
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/**** T Y P E 1 D R I V E R C O N F I G U R A T I O N ****/ |
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/**** ****/ |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/* */ |
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/* T1_MAX_DICT_DEPTH is the maximum depth of nest dictionaries and */ |
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/* arrays in the Type 1 stream (see t1load.c). A minimum of 4 is */ |
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/* required. */ |
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/* */ |
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#define T1_MAX_DICT_DEPTH 5 |
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/*************************************************************************/ |
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/* */ |
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/* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */ |
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/* calls during glyph loading. */ |
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/* */ |
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#define T1_MAX_SUBRS_CALLS 16 |
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/*************************************************************************/ |
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/* */ |
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/* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */ |
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/* minimum of 16 is required. */ |
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/* */ |
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/* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256. */ |
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/* */ |
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#define T1_MAX_CHARSTRINGS_OPERANDS 256 |
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/*************************************************************************/ |
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/* */ |
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/* Define this configuration macro if you want to prevent the */ |
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/* compilation of `t1afm', which is in charge of reading Type 1 AFM */ |
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/* files into an existing face. Note that if set, the T1 driver will be */ |
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/* unable to produce kerning distances. */ |
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/* */ |
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#undef T1_CONFIG_OPTION_NO_AFM |
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/*************************************************************************/ |
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/* */ |
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/* Define this configuration macro if you want to prevent the */ |
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/* compilation of the Multiple Masters font support in the Type 1 */ |
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/* driver. */ |
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/* */ |
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#undef T1_CONFIG_OPTION_NO_MM_SUPPORT |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/**** ****/ |
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/**** C F F D R I V E R C O N F I G U R A T I O N ****/ |
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/**** ****/ |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/* */ |
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/* Using CFF_CONFIG_OPTION_DARKENING_PARAMETER_{X,Y}{1,2,3,4} it is */ |
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/* possible to set up the default values of the four control points that */ |
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/* define the stem darkening behaviour of the (new) CFF engine. For */ |
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/* more details please read the documentation of the */ |
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/* `darkening-parameters' property of the cff driver module (file */ |
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/* `ftcffdrv.h'), which allows the control at run-time. */ |
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/* */ |
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/* Do *not* undefine these macros! */ |
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/* */ |
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#define CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1 500 |
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#define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y1 400 |
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#define CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 1000 |
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#define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y2 275 |
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#define CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 1667 |
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#define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y3 275 |
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#define CFF_CONFIG_OPTION_DARKENING_PARAMETER_X4 2333 |
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#define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y4 0 |
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/*************************************************************************/ |
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/* */ |
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/* CFF_CONFIG_OPTION_OLD_ENGINE controls whether the pre-Adobe CFF */ |
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/* engine gets compiled into FreeType. If defined, it is possible to */ |
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/* switch between the two engines using the `hinting-engine' property of */ |
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/* the cff driver module. */ |
|
/* */ |
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#define CFF_CONFIG_OPTION_OLD_ENGINE |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/**** ****/ |
|
/**** 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 ****/ |
|
/**** ****/ |
|
/*************************************************************************/ |
|
/*************************************************************************/ |
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|
/*************************************************************************/ |
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/* */ |
|
/* Compile autofit module with CJK (Chinese, Japanese, Korean) script */ |
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/* support. */ |
|
/* */ |
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#define AF_CONFIG_OPTION_CJK |
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/*************************************************************************/ |
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/* */ |
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/* Compile autofit module with Indic script support. */ |
|
/* */ |
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#define AF_CONFIG_OPTION_INDIC |
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/*************************************************************************/ |
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/* */ |
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/* Compile autofit module with warp hinting. The idea of the warping */ |
|
/* code is to slightly scale and shift a glyph within a single dimension */ |
|
/* so that as much of its segments are aligned (more or less) on the */ |
|
/* grid. To find out the optimal scaling and shifting value, various */ |
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/* parameter combinations are tried and scored. */ |
|
/* */ |
|
/* This experimental option is active only if the rendering mode is */ |
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/* FT_RENDER_MODE_LIGHT; you can switch warping on and off with the */ |
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/* `warping' property of the auto-hinter (see file `ftautoh.h' for more */ |
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/* information; by default it is switched off). */ |
|
/* */ |
|
#define AF_CONFIG_OPTION_USE_WARPER |
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|
/* */ |
|
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|
|
/* |
|
* This macro is obsolete. Support has been removed in FreeType |
|
* version 2.5. |
|
*/ |
|
/* #define FT_CONFIG_OPTION_OLD_INTERNALS */ |
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|
|
/* |
|
* This macro is defined if native TrueType hinting is requested by the |
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* definitions above. |
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*/ |
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#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER |
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#define TT_USE_BYTECODE_INTERPRETER |
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|
#if TT_CONFIG_OPTION_SUBPIXEL_HINTING & 1 |
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#define TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY |
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#endif |
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|
|
#if TT_CONFIG_OPTION_SUBPIXEL_HINTING & 2 |
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#define TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL |
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#endif |
|
#endif |
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|
|
|
|
/* |
|
* Check CFF darkening parameters. The checks are the same as in function |
|
* `cff_property_set' in file `cffdrivr.c'. |
|
*/ |
|
#if CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1 < 0 || \ |
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CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 < 0 || \ |
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CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 < 0 || \ |
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CFF_CONFIG_OPTION_DARKENING_PARAMETER_X4 < 0 || \ |
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\ |
|
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y1 < 0 || \ |
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CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y2 < 0 || \ |
|
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y3 < 0 || \ |
|
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y4 < 0 || \ |
|
\ |
|
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1 > \ |
|
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 || \ |
|
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 > \ |
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CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 || \ |
|
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 > \ |
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CFF_CONFIG_OPTION_DARKENING_PARAMETER_X4 || \ |
|
\ |
|
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y1 > 500 || \ |
|
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y2 > 500 || \ |
|
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y3 > 500 || \ |
|
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y4 > 500 |
|
#error "Invalid CFF darkening parameters!" |
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#endif |
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FT_END_HEADER |
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#endif /* FTOPTION_H_ */ |
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/* END */
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