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/***************************************************************************/
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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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345 |
/* allocation of the render pool. */
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/* */
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|
347 |
#define FT_RENDER_POOL_SIZE 16384L
|
|
|
348 |
|
|
|
349 |
|
|
|
350 |
/*************************************************************************/
|
|
|
351 |
/* */
|
|
|
352 |
/* FT_MAX_MODULES */
|
|
|
353 |
/* */
|
|
|
354 |
/* The maximum number of modules that can be registered in a single */
|
|
|
355 |
/* FreeType library object. 32 is the default. */
|
|
|
356 |
/* */
|
|
|
357 |
#define FT_MAX_MODULES 32
|
|
|
358 |
|
|
|
359 |
|
|
|
360 |
/*************************************************************************/
|
|
|
361 |
/* */
|
|
|
362 |
/* Debug level */
|
|
|
363 |
/* */
|
|
|
364 |
/* FreeType can be compiled in debug or trace mode. In debug mode, */
|
|
|
365 |
/* errors are reported through the `ftdebug' component. In trace */
|
|
|
366 |
/* mode, additional messages are sent to the standard output during */
|
|
|
367 |
/* execution. */
|
|
|
368 |
/* */
|
|
|
369 |
/* Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode. */
|
|
|
370 |
/* Define FT_DEBUG_LEVEL_TRACE to build it in trace mode. */
|
|
|
371 |
/* */
|
|
|
372 |
/* Don't define any of these macros to compile in `release' mode! */
|
|
|
373 |
/* */
|
|
|
374 |
/* Do not #undef these macros here since the build system might define */
|
|
|
375 |
/* them for certain configurations only. */
|
|
|
376 |
/* */
|
|
|
377 |
#define FT_DEBUG_LEVEL_ERROR
|
|
|
378 |
#define FT_DEBUG_LEVEL_TRACE
|
|
|
379 |
|
|
|
380 |
|
|
|
381 |
/*************************************************************************/
|
|
|
382 |
/* */
|
|
|
383 |
/* Autofitter debugging */
|
|
|
384 |
/* */
|
|
|
385 |
/* If FT_DEBUG_AUTOFIT is defined, FreeType provides some means to */
|
|
|
386 |
/* control the autofitter behaviour for debugging purposes with global */
|
|
|
387 |
/* boolean variables (consequently, you should *never* enable this */
|
|
|
388 |
/* while compiling in `release' mode): */
|
|
|
389 |
/* */
|
|
|
390 |
/* _af_debug_disable_horz_hints */
|
|
|
391 |
/* _af_debug_disable_vert_hints */
|
|
|
392 |
/* _af_debug_disable_blue_hints */
|
|
|
393 |
/* */
|
|
|
394 |
/* Additionally, the following functions provide dumps of various */
|
|
|
395 |
/* internal autofit structures to stdout (using `printf'): */
|
|
|
396 |
/* */
|
|
|
397 |
/* af_glyph_hints_dump_points */
|
|
|
398 |
/* af_glyph_hints_dump_segments */
|
|
|
399 |
/* af_glyph_hints_dump_edges */
|
|
|
400 |
/* */
|
|
|
401 |
/* As an argument, they use another global variable: */
|
|
|
402 |
/* */
|
|
|
403 |
/* _af_debug_hints */
|
|
|
404 |
/* */
|
|
|
405 |
/* Please have a look at the `ftgrid' demo program to see how those */
|
|
|
406 |
/* variables and macros should be used. */
|
|
|
407 |
/* */
|
|
|
408 |
/* Do not #undef these macros here since the build system might define */
|
|
|
409 |
/* them for certain configurations only. */
|
|
|
410 |
/* */
|
|
|
411 |
#define FT_DEBUG_AUTOFIT
|
|
|
412 |
|
|
|
413 |
|
|
|
414 |
/*************************************************************************/
|
|
|
415 |
/* */
|
|
|
416 |
/* Memory Debugging */
|
|
|
417 |
/* */
|
|
|
418 |
/* FreeType now comes with an integrated memory debugger that is */
|
|
|
419 |
/* capable of detecting simple errors like memory leaks or double */
|
|
|
420 |
/* deletes. To compile it within your build of the library, you */
|
|
|
421 |
/* should define FT_DEBUG_MEMORY here. */
|
|
|
422 |
/* */
|
|
|
423 |
/* Note that the memory debugger is only activated at runtime when */
|
|
|
424 |
/* when the _environment_ variable `FT2_DEBUG_MEMORY' is defined also! */
|
|
|
425 |
/* */
|
|
|
426 |
/* Do not #undef this macro here since the build system might define */
|
|
|
427 |
/* it for certain configurations only. */
|
|
|
428 |
/* */
|
|
|
429 |
#define FT_DEBUG_MEMORY
|
|
|
430 |
|
|
|
431 |
|
|
|
432 |
/*************************************************************************/
|
|
|
433 |
/* */
|
|
|
434 |
/* Module errors */
|
|
|
435 |
/* */
|
|
|
436 |
/* If this macro is set (which is _not_ the default), the higher byte */
|
|
|
437 |
/* of an error code gives the module in which the error has occurred, */
|
|
|
438 |
/* while the lower byte is the real error code. */
|
|
|
439 |
/* */
|
|
|
440 |
/* Setting this macro makes sense for debugging purposes only, since */
|
|
|
441 |
/* it would break source compatibility of certain programs that use */
|
|
|
442 |
/* FreeType 2. */
|
|
|
443 |
/* */
|
|
|
444 |
/* More details can be found in the files ftmoderr.h and fterrors.h. */
|
|
|
445 |
/* */
|
|
|
446 |
#undef FT_CONFIG_OPTION_USE_MODULE_ERRORS
|
|
|
447 |
|
|
|
448 |
|
|
|
449 |
/*************************************************************************/
|
|
|
450 |
/* */
|
|
|
451 |
/* Position Independent Code */
|
|
|
452 |
/* */
|
|
|
453 |
/* If this macro is set (which is _not_ the default), FreeType2 will */
|
|
|
454 |
/* avoid creating constants that require address fixups. Instead the */
|
|
|
455 |
/* constants will be moved into a struct and additional intialization */
|
|
|
456 |
/* code will be used. */
|
|
|
457 |
/* */
|
|
|
458 |
/* Setting this macro is needed for systems that prohibit address */
|
|
|
459 |
/* fixups, such as BREW. */
|
|
|
460 |
/* */
|
|
|
461 |
/* #define FT_CONFIG_OPTION_PIC */
|
|
|
462 |
|
|
|
463 |
|
|
|
464 |
/*************************************************************************/
|
|
|
465 |
/*************************************************************************/
|
|
|
466 |
/**** ****/
|
|
|
467 |
/**** S F N T D R I V E R C O N F I G U R A T I O N ****/
|
|
|
468 |
/**** ****/
|
|
|
469 |
/*************************************************************************/
|
|
|
470 |
/*************************************************************************/
|
|
|
471 |
|
|
|
472 |
|
|
|
473 |
/*************************************************************************/
|
|
|
474 |
/* */
|
|
|
475 |
/* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support */
|
|
|
476 |
/* embedded bitmaps in all formats using the SFNT module (namely */
|
|
|
477 |
/* TrueType & OpenType). */
|
|
|
478 |
/* */
|
|
|
479 |
#define TT_CONFIG_OPTION_EMBEDDED_BITMAPS
|
|
|
480 |
|
|
|
481 |
|
|
|
482 |
/*************************************************************************/
|
|
|
483 |
/* */
|
|
|
484 |
/* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to */
|
|
|
485 |
/* load and enumerate the glyph Postscript names in a TrueType or */
|
|
|
486 |
/* OpenType file. */
|
|
|
487 |
/* */
|
|
|
488 |
/* Note that when you do not compile the `PSNames' module by undefining */
|
|
|
489 |
/* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will */
|
|
|
490 |
/* contain additional code used to read the PS Names table from a font. */
|
|
|
491 |
/* */
|
|
|
492 |
/* (By default, the module uses `PSNames' to extract glyph names.) */
|
|
|
493 |
/* */
|
|
|
494 |
#define TT_CONFIG_OPTION_POSTSCRIPT_NAMES
|
|
|
495 |
|
|
|
496 |
|
|
|
497 |
/*************************************************************************/
|
|
|
498 |
/* */
|
|
|
499 |
/* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to */
|
|
|
500 |
/* access the internal name table in a SFNT-based format like TrueType */
|
|
|
501 |
/* or OpenType. The name table contains various strings used to */
|
|
|
502 |
/* describe the font, like family name, copyright, version, etc. It */
|
|
|
503 |
/* does not contain any glyph name though. */
|
|
|
504 |
/* */
|
|
|
505 |
/* Accessing SFNT names is done through the functions declared in */
|
|
|
506 |
/* `freetype/ftsnames.h'. */
|
|
|
507 |
/* */
|
|
|
508 |
#define TT_CONFIG_OPTION_SFNT_NAMES
|
|
|
509 |
|
|
|
510 |
|
|
|
511 |
/*************************************************************************/
|
|
|
512 |
/* */
|
|
|
513 |
/* TrueType CMap support */
|
|
|
514 |
/* */
|
|
|
515 |
/* Here you can fine-tune which TrueType CMap table format shall be */
|
|
|
516 |
/* supported. */
|
|
|
517 |
#define TT_CONFIG_CMAP_FORMAT_0
|
|
|
518 |
#define TT_CONFIG_CMAP_FORMAT_2
|
|
|
519 |
#define TT_CONFIG_CMAP_FORMAT_4
|
|
|
520 |
#define TT_CONFIG_CMAP_FORMAT_6
|
|
|
521 |
#define TT_CONFIG_CMAP_FORMAT_8
|
|
|
522 |
#define TT_CONFIG_CMAP_FORMAT_10
|
|
|
523 |
#define TT_CONFIG_CMAP_FORMAT_12
|
|
|
524 |
#define TT_CONFIG_CMAP_FORMAT_13
|
|
|
525 |
#define TT_CONFIG_CMAP_FORMAT_14
|
|
|
526 |
|
|
|
527 |
|
|
|
528 |
/*************************************************************************/
|
|
|
529 |
/*************************************************************************/
|
|
|
530 |
/**** ****/
|
|
|
531 |
/**** 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 ****/
|
|
|
532 |
/**** ****/
|
|
|
533 |
/*************************************************************************/
|
|
|
534 |
/*************************************************************************/
|
|
|
535 |
|
|
|
536 |
/*************************************************************************/
|
|
|
537 |
/* */
|
|
|
538 |
/* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile */
|
|
|
539 |
/* a bytecode interpreter in the TrueType driver. */
|
|
|
540 |
/* */
|
|
|
541 |
/* By undefining this, you will only compile the code necessary to load */
|
|
|
542 |
/* TrueType glyphs without hinting. */
|
|
|
543 |
/* */
|
|
|
544 |
/* Do not #undef this macro here, since the build system might */
|
|
|
545 |
/* define it for certain configurations only. */
|
|
|
546 |
/* */
|
|
|
547 |
#define TT_CONFIG_OPTION_BYTECODE_INTERPRETER
|
|
|
548 |
|
|
|
549 |
|
|
|
550 |
/*************************************************************************/
|
|
|
551 |
/* */
|
|
|
552 |
/* If you define TT_CONFIG_OPTION_UNPATENTED_HINTING, a special version */
|
|
|
553 |
/* of the TrueType bytecode interpreter is used that doesn't implement */
|
|
|
554 |
/* any of the patented opcodes and algorithms. The patents related to */
|
|
|
555 |
/* TrueType hinting have expired worldwide since May 2010; this option */
|
|
|
556 |
/* is now deprecated. */
|
|
|
557 |
/* */
|
|
|
558 |
/* Note that the TT_CONFIG_OPTION_UNPATENTED_HINTING macro is *ignored* */
|
|
|
559 |
/* if you define TT_CONFIG_OPTION_BYTECODE_INTERPRETER; in other words, */
|
|
|
560 |
/* either define TT_CONFIG_OPTION_BYTECODE_INTERPRETER or */
|
|
|
561 |
/* TT_CONFIG_OPTION_UNPATENTED_HINTING but not both at the same time. */
|
|
|
562 |
/* */
|
|
|
563 |
/* This macro is only useful for a small number of font files (mostly */
|
|
|
564 |
/* for Asian scripts) that require bytecode interpretation to properly */
|
|
|
565 |
/* load glyphs. For all other fonts, this produces unpleasant results, */
|
|
|
566 |
/* thus the unpatented interpreter is never used to load glyphs from */
|
|
|
567 |
/* TrueType fonts unless one of the following two options is used. */
|
|
|
568 |
/* */
|
|
|
569 |
/* - The unpatented interpreter is explicitly activated by the user */
|
|
|
570 |
/* through the FT_PARAM_TAG_UNPATENTED_HINTING parameter tag */
|
|
|
571 |
/* when opening the FT_Face. */
|
|
|
572 |
/* */
|
|
|
573 |
/* - FreeType detects that the FT_Face corresponds to one of the */
|
|
|
574 |
/* `trick' fonts (e.g., `Mingliu') it knows about. The font engine */
|
|
|
575 |
/* contains a hard-coded list of font names and other matching */
|
|
|
576 |
/* parameters (see function `tt_face_init' in file */
|
|
|
577 |
/* `src/truetype/ttobjs.c'). */
|
|
|
578 |
/* */
|
|
|
579 |
/* Here a sample code snippet for using FT_PARAM_TAG_UNPATENTED_HINTING. */
|
|
|
580 |
/* */
|
|
|
581 |
/* { */
|
|
|
582 |
/* FT_Parameter parameter; */
|
|
|
583 |
/* FT_Open_Args open_args; */
|
|
|
584 |
/* */
|
|
|
585 |
/* */
|
|
|
586 |
/* parameter.tag = FT_PARAM_TAG_UNPATENTED_HINTING; */
|
|
|
587 |
/* */
|
|
|
588 |
/* open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS; */
|
|
|
589 |
/* open_args.pathname = my_font_pathname; */
|
|
|
590 |
/* open_args.num_params = 1; */
|
|
|
591 |
/* open_args.params = ¶meter; */
|
|
|
592 |
/* */
|
|
|
593 |
/* error = FT_Open_Face( library, &open_args, index, &face ); */
|
|
|
594 |
/* ... */
|
|
|
595 |
/* } */
|
|
|
596 |
/* */
|
|
|
597 |
/* #define TT_CONFIG_OPTION_UNPATENTED_HINTING */
|
|
|
598 |
|
|
|
599 |
|
|
|
600 |
/*************************************************************************/
|
|
|
601 |
/* */
|
|
|
602 |
/* Define TT_CONFIG_OPTION_INTERPRETER_SWITCH to compile the TrueType */
|
|
|
603 |
/* bytecode interpreter with a huge switch statement, rather than a call */
|
|
|
604 |
/* table. This results in smaller and faster code for a number of */
|
|
|
605 |
/* architectures. */
|
|
|
606 |
/* */
|
|
|
607 |
/* Note however that on some compiler/processor combinations, undefining */
|
|
|
608 |
/* this macro will generate faster, though larger, code. */
|
|
|
609 |
/* */
|
|
|
610 |
#define TT_CONFIG_OPTION_INTERPRETER_SWITCH
|
|
|
611 |
|
|
|
612 |
|
|
|
613 |
/*************************************************************************/
|
|
|
614 |
/* */
|
|
|
615 |
/* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the */
|
|
|
616 |
/* TrueType glyph loader to use Apple's definition of how to handle */
|
|
|
617 |
/* component offsets in composite glyphs. */
|
|
|
618 |
/* */
|
|
|
619 |
/* Apple and MS disagree on the default behavior of component offsets */
|
|
|
620 |
/* in composites. Apple says that they should be scaled by the scaling */
|
|
|
621 |
/* factors in the transformation matrix (roughly, it's more complex) */
|
|
|
622 |
/* while MS says they should not. OpenType defines two bits in the */
|
|
|
623 |
/* composite flags array which can be used to disambiguate, but old */
|
|
|
624 |
/* fonts will not have them. */
|
|
|
625 |
/* */
|
|
|
626 |
/* http://partners.adobe.com/asn/developer/opentype/glyf.html */
|
|
|
627 |
/* http://fonts.apple.com/TTRefMan/RM06/Chap6glyf.html */
|
|
|
628 |
/* */
|
|
|
629 |
#undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED
|
|
|
630 |
|
|
|
631 |
|
|
|
632 |
/*************************************************************************/
|
|
|
633 |
/* */
|
|
|
634 |
/* Define TT_CONFIG_OPTION_GX_VAR_SUPPORT if you want to include */
|
|
|
635 |
/* support for Apple's distortable font technology (fvar, gvar, cvar, */
|
|
|
636 |
/* and avar tables). This has many similarities to Type 1 Multiple */
|
|
|
637 |
/* Masters support. */
|
|
|
638 |
/* */
|
|
|
639 |
#define TT_CONFIG_OPTION_GX_VAR_SUPPORT
|
|
|
640 |
|
|
|
641 |
|
|
|
642 |
/*************************************************************************/
|
|
|
643 |
/* */
|
|
|
644 |
/* Define TT_CONFIG_OPTION_BDF if you want to include support for */
|
|
|
645 |
/* an embedded `BDF ' table within SFNT-based bitmap formats. */
|
|
|
646 |
/* */
|
|
|
647 |
#define TT_CONFIG_OPTION_BDF
|
|
|
648 |
|
|
|
649 |
|
|
|
650 |
/*************************************************************************/
|
|
|
651 |
/*************************************************************************/
|
|
|
652 |
/**** ****/
|
|
|
653 |
/**** T Y P E 1 D R I V E R C O N F I G U R A T I O N ****/
|
|
|
654 |
/**** ****/
|
|
|
655 |
/*************************************************************************/
|
|
|
656 |
/*************************************************************************/
|
|
|
657 |
|
|
|
658 |
|
|
|
659 |
/*************************************************************************/
|
|
|
660 |
/* */
|
|
|
661 |
/* T1_MAX_DICT_DEPTH is the maximal depth of nest dictionaries and */
|
|
|
662 |
/* arrays in the Type 1 stream (see t1load.c). A minimum of 4 is */
|
|
|
663 |
/* required. */
|
|
|
664 |
/* */
|
|
|
665 |
#define T1_MAX_DICT_DEPTH 5
|
|
|
666 |
|
|
|
667 |
|
|
|
668 |
/*************************************************************************/
|
|
|
669 |
/* */
|
|
|
670 |
/* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */
|
|
|
671 |
/* calls during glyph loading. */
|
|
|
672 |
/* */
|
|
|
673 |
#define T1_MAX_SUBRS_CALLS 16
|
|
|
674 |
|
|
|
675 |
|
|
|
676 |
/*************************************************************************/
|
|
|
677 |
/* */
|
|
|
678 |
/* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */
|
|
|
679 |
/* minimum of 16 is required. */
|
|
|
680 |
/* */
|
|
|
681 |
/* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256. */
|
|
|
682 |
/* */
|
|
|
683 |
#define T1_MAX_CHARSTRINGS_OPERANDS 256
|
|
|
684 |
|
|
|
685 |
|
|
|
686 |
/*************************************************************************/
|
|
|
687 |
/* */
|
|
|
688 |
/* Define this configuration macro if you want to prevent the */
|
|
|
689 |
/* compilation of `t1afm', which is in charge of reading Type 1 AFM */
|
|
|
690 |
/* files into an existing face. Note that if set, the T1 driver will be */
|
|
|
691 |
/* unable to produce kerning distances. */
|
|
|
692 |
/* */
|
|
|
693 |
#undef T1_CONFIG_OPTION_NO_AFM
|
|
|
694 |
|
|
|
695 |
|
|
|
696 |
/*************************************************************************/
|
|
|
697 |
/* */
|
|
|
698 |
/* Define this configuration macro if you want to prevent the */
|
|
|
699 |
/* compilation of the Multiple Masters font support in the Type 1 */
|
|
|
700 |
/* driver. */
|
|
|
701 |
/* */
|
|
|
702 |
#undef T1_CONFIG_OPTION_NO_MM_SUPPORT
|
|
|
703 |
|
|
|
704 |
|
|
|
705 |
/*************************************************************************/
|
|
|
706 |
/*************************************************************************/
|
|
|
707 |
/**** ****/
|
|
|
708 |
/**** 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 ****/
|
|
|
709 |
/**** ****/
|
|
|
710 |
/*************************************************************************/
|
|
|
711 |
/*************************************************************************/
|
|
|
712 |
|
|
|
713 |
|
|
|
714 |
/*************************************************************************/
|
|
|
715 |
/* */
|
|
|
716 |
/* Compile autofit module with CJK (Chinese, Japanese, Korean) script */
|
|
|
717 |
/* support. */
|
|
|
718 |
/* */
|
|
|
719 |
#define AF_CONFIG_OPTION_CJK
|
|
|
720 |
|
|
|
721 |
/*************************************************************************/
|
|
|
722 |
/* */
|
|
|
723 |
/* Compile autofit module with Indic script support. */
|
|
|
724 |
/* */
|
|
|
725 |
#define AF_CONFIG_OPTION_INDIC
|
|
|
726 |
|
|
|
727 |
/*************************************************************************/
|
|
|
728 |
/* */
|
|
|
729 |
/* Compile autofit module with warp hinting. The idea of the warping */
|
|
|
730 |
/* code is to slightly scale and shift a glyph within a single dimension */
|
|
|
731 |
/* so that as much of its segments are aligned (more or less) on the */
|
|
|
732 |
/* grid. To find out the optimal scaling and shifting value, various */
|
|
|
733 |
/* parameter combinations are tried and scored. */
|
|
|
734 |
/* */
|
|
|
735 |
/* This experimental option is only active if the render mode is */
|
|
|
736 |
/* FT_RENDER_MODE_LIGHT. */
|
|
|
737 |
/* */
|
|
|
738 |
#define AF_CONFIG_OPTION_USE_WARPER
|
|
|
739 |
|
|
|
740 |
/* */
|
|
|
741 |
|
|
|
742 |
|
|
|
743 |
/*
|
|
|
744 |
* Define this variable if you want to keep the layout of internal
|
|
|
745 |
* structures that was used prior to FreeType 2.2. This also compiles in
|
|
|
746 |
* a few obsolete functions to avoid linking problems on typical Unix
|
|
|
747 |
* distributions.
|
|
|
748 |
*
|
|
|
749 |
* For embedded systems or building a new distribution from scratch, it
|
|
|
750 |
* is recommended to disable the macro since it reduces the library's code
|
|
|
751 |
* size and activates a few memory-saving optimizations as well.
|
|
|
752 |
*/
|
|
|
753 |
#define FT_CONFIG_OPTION_OLD_INTERNALS
|
|
|
754 |
|
|
|
755 |
|
|
|
756 |
/*
|
|
|
757 |
* To detect legacy cache-lookup call from a rogue client (<= 2.1.7),
|
|
|
758 |
* we restrict the number of charmaps in a font. The current API of
|
|
|
759 |
* FTC_CMapCache_Lookup() takes cmap_index & charcode, but old API
|
|
|
760 |
* takes charcode only. To determine the passed value is for cmap_index
|
|
|
761 |
* or charcode, the possible cmap_index is restricted not to exceed
|
|
|
762 |
* the minimum possible charcode by a rogue client. It is also very
|
|
|
763 |
* unlikely that a rogue client is interested in Unicode values 0 to 15.
|
|
|
764 |
*
|
|
|
765 |
* NOTE: The original threshold was 4 deduced from popular number of
|
|
|
766 |
* cmap subtables in UCS-4 TrueType fonts, but now it is not
|
|
|
767 |
* irregular for OpenType fonts to have more than 4 subtables,
|
|
|
768 |
* because variation selector subtables are available for Apple
|
|
|
769 |
* and Microsoft platforms.
|
|
|
770 |
*/
|
|
|
771 |
|
|
|
772 |
#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
|
|
|
773 |
#define FT_MAX_CHARMAP_CACHEABLE 15
|
|
|
774 |
#endif
|
|
|
775 |
|
|
|
776 |
|
|
|
777 |
/*
|
|
|
778 |
* This macro is defined if either unpatented or native TrueType
|
|
|
779 |
* hinting is requested by the definitions above.
|
|
|
780 |
*/
|
|
|
781 |
#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
|
|
|
782 |
#define TT_USE_BYTECODE_INTERPRETER
|
|
|
783 |
#undef TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
|
784 |
#elif defined TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
|
785 |
#define TT_USE_BYTECODE_INTERPRETER
|
|
|
786 |
#endif
|
|
|
787 |
|
|
|
788 |
FT_END_HEADER
|
|
|
789 |
|
|
|
790 |
|
|
|
791 |
#endif /* __FTOPTION_H__ */
|
|
|
792 |
|
|
|
793 |
|
|
|
794 |
/* END */
|