503 lines
30 KiB
C
503 lines
30 KiB
C
/***************************************************************************/
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/* */
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/* ftoption.h */
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/* */
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/* User-selectable configuration macros (specification only). */
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/* */
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/* Copyright 1996-2001, 2002, 2003 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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/*
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* This is a special developer version of "ftoption.h". It is used
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* to define all debugging options, as well as the TrueType bytecode
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* interpreter.
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*/
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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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/* 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 ints is normally disabled when */
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/* the __STDC__ macro is defined. You can however disable this by */
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/* defining here the macro FT_CONFIG_OPTION_FORCE_INT64. */
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/* */
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/* For most compilers, this will only create compilation warnings */
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/* when 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 Autoconf */
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/* on platforms that support it. */
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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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/* 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/base/ftgzip.c). */
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/* */
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/* Define this macro if you want to enable this "feature". Note that */
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/* this will however force you to link the zlib to any program that */
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/* also uses FreeType. */
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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 */
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/* define for certain configurations */
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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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/* 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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/* #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 synthetize 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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/* synthetize 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 synthetize 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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/* 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 allows FreeType to be used with the PostScript language, using */
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/* the GhostScript interpreter. */
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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. */
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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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#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 "FT_DEBUG_MEMORY" is also defined! */
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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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/**** ****/
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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/ftnames.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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/*************************************************************************/
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/*************************************************************************/
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/**** ****/
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/**** T R U E T Y P E D R I V E R C O N F I G U R A T I O N ****/
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/**** ****/
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/* */
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/* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile */
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/* a bytecode interpreter in the TrueType driver. Note that there are */
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/* important patent issues related to the use of the interpreter. */
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/* */
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/* By undefining this, you will only compile the code necessary to load */
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/* TrueType glyphs without hinting. */
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/* */
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/* do not #undef this macro here, since the build system might */
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/* define for certain configurations */
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/* */
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#define TT_CONFIG_OPTION_BYTECODE_INTERPRETER
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/*************************************************************************/
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/* */
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/* Define TT_CONFIG_OPTION_INTERPRETER_SWITCH to compile the TrueType */
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/* bytecode interpreter with a huge switch statement, rather than a call */
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/* table. This results in smaller and faster code for a number of */
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/* architectures. */
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/* */
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/* Note however that on some compiler/processor combinations, undefining */
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/* this macro will generate faster, though larger, code. */
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/* */
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#define TT_CONFIG_OPTION_INTERPRETER_SWITCH
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/*************************************************************************/
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/* */
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/* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the */
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/* TrueType glyph loader to use Apple's definition of how to handle */
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/* component offsets in composite glyphs. */
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/* */
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/* Apple and MS disagree on the default behavior of component offsets */
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/* in composites. Apple says that they should be scaled by the scale */
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/* factors in the transformation matrix (roughly, it's more complex) */
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/* while MS says they should not. OpenType defines two bits in the */
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/* composite flags array which can be used to disambiguate, but old */
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/* fonts will not have them. */
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/* */
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/* http://partners.adobe.com/asn/developer/opentype/glyf.html */
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/* http://fonts.apple.com/TTRefMan/RM06/Chap6glyf.html */
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/* */
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#undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED
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/*************************************************************************/
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/*************************************************************************/
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/**** ****/
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/**** T Y P E 1 D R I V E R C O N F I G U R A T I O N ****/
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/**** ****/
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/* */
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/* T1_MAX_DICT_DEPTH is the maximal depth of nest dictionaries and */
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/* arrays in the Type 1 stream (see t1load.c). A minimum of 4 is */
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/* required. */
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/* */
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#define T1_MAX_DICT_DEPTH 5
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/*************************************************************************/
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/* */
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/* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */
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/* calls during glyph loading. */
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/* */
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#define T1_MAX_SUBRS_CALLS 16
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/*************************************************************************/
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/* */
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/* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */
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/* minimum of 16 is required. */
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/* */
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/* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256. */
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/* */
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#define T1_MAX_CHARSTRINGS_OPERANDS 256
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/*************************************************************************/
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/* */
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/* Define this configuration macro if you want to prevent the */
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/* compilation of `t1afm', which is in charge of reading Type 1 AFM */
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/* files into an existing face. Note that if set, the T1 driver will be */
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/* unable to produce kerning distances. */
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/* */
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#undef T1_CONFIG_OPTION_NO_AFM
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/*************************************************************************/
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/* */
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/* Define this configuration macro if you want to prevent the */
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/* compilation of the Multiple Masters font support in the Type 1 */
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/* driver. */
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/* */
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#undef T1_CONFIG_OPTION_NO_MM_SUPPORT
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/* */
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/*
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* the FT_CONFIG_OPTION_CHESTER_XXXX macros are used to toggle some recent
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* improvements to the auto-hinter contributed by David Chester. They will
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* most likely disappear completely in the next release. For now, you should
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* always keep them defined
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*
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*/
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#define FT_CONFIG_OPTION_CHESTER_HINTS
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#ifdef FT_CONFIG_OPTION_CHESTER_HINTS
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# define FT_CONFIG_CHESTER_SMALL_F
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# define FT_CONFIG_CHESTER_ASCENDER
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# define FT_CONFIG_CHESTER_SERIF
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# define FT_CONFIG_CHESTER_STEM
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# define FT_CONFIG_CHESTER_BLUE_SCALE
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#endif /* FT_CONFIG_OPTION_CHESTER_HINTS */
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FT_END_HEADER
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#endif /* __FTOPTION_H__ */
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/* END */
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