762 lines
46 KiB
C
762 lines
46 KiB
C
/***************************************************************************/
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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 1996-2011 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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/* 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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/* 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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/* This must be greater than 4KByte if you use FreeType to rasterize */
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/* glyphs; otherwise, you may set it to zero to avoid unnecessary */
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/* allocation of the render pool. */
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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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/* 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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/* */
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/* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support */
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/* 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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/* `freetype/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 */
|
|
/* a bytecode interpreter in the TrueType driver. */
|
|
/* */
|
|
/* By undefining this, you will only compile the code necessary to load */
|
|
/* TrueType glyphs without hinting. */
|
|
/* */
|
|
/* Do not #undef this macro here, since the build system might */
|
|
/* define it for certain configurations only. */
|
|
/* */
|
|
#define TT_CONFIG_OPTION_BYTECODE_INTERPRETER
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* If you define TT_CONFIG_OPTION_UNPATENTED_HINTING, a special version */
|
|
/* of the TrueType bytecode interpreter is used that doesn't implement */
|
|
/* any of the patented opcodes and algorithms. The patents related to */
|
|
/* TrueType hinting have expired worldwide since May 2010; this option */
|
|
/* is now deprecated. */
|
|
/* */
|
|
/* Note that the TT_CONFIG_OPTION_UNPATENTED_HINTING macro is *ignored* */
|
|
/* if you define TT_CONFIG_OPTION_BYTECODE_INTERPRETER; in other words, */
|
|
/* either define TT_CONFIG_OPTION_BYTECODE_INTERPRETER or */
|
|
/* TT_CONFIG_OPTION_UNPATENTED_HINTING but not both at the same time. */
|
|
/* */
|
|
/* This macro is only useful for a small number of font files (mostly */
|
|
/* for Asian scripts) that require bytecode interpretation to properly */
|
|
/* load glyphs. For all other fonts, this produces unpleasant results, */
|
|
/* thus the unpatented interpreter is never used to load glyphs from */
|
|
/* TrueType fonts unless one of the following two options is used. */
|
|
/* */
|
|
/* - The unpatented interpreter is explicitly activated by the user */
|
|
/* through the FT_PARAM_TAG_UNPATENTED_HINTING parameter tag */
|
|
/* when opening the FT_Face. */
|
|
/* */
|
|
/* - FreeType detects that the FT_Face corresponds to one of the */
|
|
/* `trick' fonts (e.g., `Mingliu') it knows about. The font engine */
|
|
/* contains a hard-coded list of font names and other matching */
|
|
/* parameters (see function `tt_face_init' in file */
|
|
/* `src/truetype/ttobjs.c'). */
|
|
/* */
|
|
/* Here a sample code snippet for using FT_PARAM_TAG_UNPATENTED_HINTING. */
|
|
/* */
|
|
/* { */
|
|
/* FT_Parameter parameter; */
|
|
/* FT_Open_Args open_args; */
|
|
/* */
|
|
/* */
|
|
/* parameter.tag = FT_PARAM_TAG_UNPATENTED_HINTING; */
|
|
/* */
|
|
/* open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS; */
|
|
/* open_args.pathname = my_font_pathname; */
|
|
/* open_args.num_params = 1; */
|
|
/* open_args.params = ¶meter; */
|
|
/* */
|
|
/* error = FT_Open_Face( library, &open_args, index, &face ); */
|
|
/* ... */
|
|
/* } */
|
|
/* */
|
|
/* #define TT_CONFIG_OPTION_UNPATENTED_HINTING */
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* Define TT_CONFIG_OPTION_INTERPRETER_SWITCH to compile the TrueType */
|
|
/* bytecode interpreter with a huge switch statement, rather than a call */
|
|
/* table. This results in smaller and faster code for a number of */
|
|
/* architectures. */
|
|
/* */
|
|
/* Note however that on some compiler/processor combinations, undefining */
|
|
/* this macro will generate faster, though larger, code. */
|
|
/* */
|
|
#define TT_CONFIG_OPTION_INTERPRETER_SWITCH
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the */
|
|
/* TrueType glyph loader to use Apple's definition of how to handle */
|
|
/* component offsets in composite glyphs. */
|
|
/* */
|
|
/* Apple and MS disagree on the default behavior of component offsets */
|
|
/* in composites. Apple says that they should be scaled by the scaling */
|
|
/* factors in the transformation matrix (roughly, it's more complex) */
|
|
/* while MS says they should not. OpenType defines two bits in the */
|
|
/* composite flags array which can be used to disambiguate, but old */
|
|
/* fonts will not have them. */
|
|
/* */
|
|
/* http://partners.adobe.com/asn/developer/opentype/glyf.html */
|
|
/* http://fonts.apple.com/TTRefMan/RM06/Chap6glyf.html */
|
|
/* */
|
|
#undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* Define TT_CONFIG_OPTION_GX_VAR_SUPPORT if you want to include */
|
|
/* support for Apple's distortable font technology (fvar, gvar, cvar, */
|
|
/* and avar tables). This has many similarities to Type 1 Multiple */
|
|
/* Masters support. */
|
|
/* */
|
|
#define TT_CONFIG_OPTION_GX_VAR_SUPPORT
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* Define TT_CONFIG_OPTION_BDF if you want to include support for */
|
|
/* an embedded `BDF ' table within SFNT-based bitmap formats. */
|
|
/* */
|
|
#define TT_CONFIG_OPTION_BDF
|
|
|
|
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/**** ****/
|
|
/**** T Y P E 1 D R I V E R C O N F I G U R A T I O N ****/
|
|
/**** ****/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* T1_MAX_DICT_DEPTH is the maximal depth of nest dictionaries and */
|
|
/* arrays in the Type 1 stream (see t1load.c). A minimum of 4 is */
|
|
/* required. */
|
|
/* */
|
|
#define T1_MAX_DICT_DEPTH 5
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */
|
|
/* calls during glyph loading. */
|
|
/* */
|
|
#define T1_MAX_SUBRS_CALLS 16
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */
|
|
/* minimum of 16 is required. */
|
|
/* */
|
|
/* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256. */
|
|
/* */
|
|
#define T1_MAX_CHARSTRINGS_OPERANDS 256
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* Define this configuration macro if you want to prevent the */
|
|
/* compilation of `t1afm', which is in charge of reading Type 1 AFM */
|
|
/* files into an existing face. Note that if set, the T1 driver will be */
|
|
/* unable to produce kerning distances. */
|
|
/* */
|
|
#undef T1_CONFIG_OPTION_NO_AFM
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* Define this configuration macro if you want to prevent the */
|
|
/* compilation of the Multiple Masters font support in the Type 1 */
|
|
/* driver. */
|
|
/* */
|
|
#undef T1_CONFIG_OPTION_NO_MM_SUPPORT
|
|
|
|
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/**** ****/
|
|
/**** A U T O F I T M O D U L E C O N F I G U R A T I O N ****/
|
|
/**** ****/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* Compile autofit module with CJK (Chinese, Japanese, Korean) script */
|
|
/* support. */
|
|
/* */
|
|
#define AF_CONFIG_OPTION_CJK
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* Compile autofit module with Indic script support. */
|
|
/* */
|
|
#define AF_CONFIG_OPTION_INDIC
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* Compile autofit module with warp hinting. The idea of the warping */
|
|
/* code is to slightly scale and shift a glyph within a single dimension */
|
|
/* so that as much of its segments are aligned (more or less) on the */
|
|
/* grid. To find out the optimal scaling and shifting value, various */
|
|
/* parameter combinations are tried and scored. */
|
|
/* */
|
|
/* This experimental option is only active if the render mode is */
|
|
/* FT_RENDER_MODE_LIGHT. */
|
|
/* */
|
|
#define AF_CONFIG_OPTION_USE_WARPER
|
|
|
|
/* */
|
|
|
|
|
|
/*
|
|
* Define this variable if you want to keep the layout of internal
|
|
* structures that was used prior to FreeType 2.2. This also compiles in
|
|
* a few obsolete functions to avoid linking problems on typical Unix
|
|
* distributions.
|
|
*
|
|
* For embedded systems or building a new distribution from scratch, it
|
|
* is recommended to disable the macro since it reduces the library's code
|
|
* size and activates a few memory-saving optimizations as well.
|
|
*/
|
|
#define FT_CONFIG_OPTION_OLD_INTERNALS
|
|
|
|
|
|
/*
|
|
* To detect legacy cache-lookup call from a rogue client (<= 2.1.7),
|
|
* we restrict the number of charmaps in a font. The current API of
|
|
* FTC_CMapCache_Lookup() takes cmap_index & charcode, but old API
|
|
* takes charcode only. To determine the passed value is for cmap_index
|
|
* or charcode, the possible cmap_index is restricted not to exceed
|
|
* the minimum possible charcode by a rogue client. It is also very
|
|
* unlikely that a rogue client is interested in Unicode values 0 to 15.
|
|
*
|
|
* NOTE: The original threshold was 4 deduced from popular number of
|
|
* cmap subtables in UCS-4 TrueType fonts, but now it is not
|
|
* irregular for OpenType fonts to have more than 4 subtables,
|
|
* because variation selector subtables are available for Apple
|
|
* and Microsoft platforms.
|
|
*/
|
|
|
|
#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
|
|
#define FT_MAX_CHARMAP_CACHEABLE 15
|
|
#endif
|
|
|
|
|
|
/*
|
|
* This macro is defined if either unpatented or native TrueType
|
|
* hinting is requested by the definitions above.
|
|
*/
|
|
#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
|
|
#define TT_USE_BYTECODE_INTERPRETER
|
|
#undef TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
#elif defined TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
#define TT_USE_BYTECODE_INTERPRETER
|
|
#endif
|
|
|
|
FT_END_HEADER
|
|
|
|
|
|
#endif /* __FTOPTION_H__ */
|
|
|
|
|
|
/* END */
|