/***************************************************************************/ /* */ /* FreeTypeAmalgam.h */ /* */ /* Copyright 2003-2007, 2011 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ #ifdef _MSC_VER #pragma push_macro("_CRT_SECURE_NO_WARNINGS") #ifndef _CRT_SECURE_NO_WARNINGS #define _CRT_SECURE_NO_WARNINGS #endif #endif /*** Start of inlined file: ft2build.h ***/ /* */ /* ft2build.h */ /* */ /* FreeType 2 build and setup macros. */ /* (Generic version) */ /* */ /* Copyright 1996-2001, 2006 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ /*************************************************************************/ /* */ /* This file corresponds to the default `ft2build.h' file for */ /* FreeType 2. It uses the `freetype' include root. */ /* */ /* Note that specific platforms might use a different configuration. */ /* See builds/unix/ft2unix.h for an example. */ /* */ /*************************************************************************/ #ifndef __FT2_BUILD_GENERIC_H__ #define __FT2_BUILD_GENERIC_H__ /*** Start of inlined file: ftheader.h ***/ /* */ /* ftheader.h */ /* */ /* Build macros of the FreeType 2 library. */ /* */ /* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ #ifndef __FT_HEADER_H__ #define __FT_HEADER_H__ /*@***********************************************************************/ /* */ /* */ /* FT_BEGIN_HEADER */ /* */ /* */ /* This macro is used in association with @FT_END_HEADER in header */ /* files to ensure that the declarations within are properly */ /* encapsulated in an `extern "C" { .. }' block when included from a */ /* C++ compiler. */ /* */ #ifdef __cplusplus #define FT_BEGIN_HEADER extern "C" { #else #define FT_BEGIN_HEADER /* nothing */ #endif /*@***********************************************************************/ /* */ /* */ /* FT_END_HEADER */ /* */ /* */ /* This macro is used in association with @FT_BEGIN_HEADER in header */ /* files to ensure that the declarations within are properly */ /* encapsulated in an `extern "C" { .. }' block when included from a */ /* C++ compiler. */ /* */ #ifdef __cplusplus #define FT_END_HEADER } #else #define FT_END_HEADER /* nothing */ #endif /*************************************************************************/ /* */ /* Aliases for the FreeType 2 public and configuration files. */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /*
*/ /* header_file_macros */ /* */ /* */ /* Header File Macros */ /* */ /* <Abstract> */ /* Macro definitions used to #include specific header files. */ /* */ /* <Description> */ /* The following macros are defined to the name of specific */ /* FreeType~2 header files. They can be used directly in #include */ /* statements as in: */ /* */ /* { */ /* #include FT_FREETYPE_H */ /* #include FT_MULTIPLE_MASTERS_H */ /* #include FT_GLYPH_H */ /* } */ /* */ /* There are several reasons why we are now using macros to name */ /* public header files. The first one is that such macros are not */ /* limited to the infamous 8.3~naming rule required by DOS (and */ /* `FT_MULTIPLE_MASTERS_H' is a lot more meaningful than `ftmm.h'). */ /* */ /* The second reason is that it allows for more flexibility in the */ /* way FreeType~2 is installed on a given system. */ /* */ /*************************************************************************/ /* configuration files */ /************************************************************************* * * @macro: * FT_CONFIG_CONFIG_H * * @description: * A macro used in #include statements to name the file containing * FreeType~2 configuration data. * */ #ifndef FT_CONFIG_CONFIG_H #define FT_CONFIG_CONFIG_H <freetype/config/ftconfig.h> #endif /************************************************************************* * * @macro: * FT_CONFIG_STANDARD_LIBRARY_H * * @description: * A macro used in #include statements to name the file containing * FreeType~2 interface to the standard C library functions. * */ #ifndef FT_CONFIG_STANDARD_LIBRARY_H #define FT_CONFIG_STANDARD_LIBRARY_H <freetype/config/ftstdlib.h> #endif /************************************************************************* * * @macro: * FT_CONFIG_OPTIONS_H * * @description: * A macro used in #include statements to name the file containing * FreeType~2 project-specific configuration options. * */ #ifndef FT_CONFIG_OPTIONS_H #define FT_CONFIG_OPTIONS_H <freetype/config/ftoption.h> #endif /************************************************************************* * * @macro: * FT_CONFIG_MODULES_H * * @description: * A macro used in #include statements to name the file containing the * list of FreeType~2 modules that are statically linked to new library * instances in @FT_Init_FreeType. * */ #ifndef FT_CONFIG_MODULES_H #define FT_CONFIG_MODULES_H <freetype/config/ftmodule.h> #endif /* */ /* public headers */ /************************************************************************* * * @macro: * FT_FREETYPE_H * * @description: * A macro used in #include statements to name the file containing the * base FreeType~2 API. * */ #define FT_FREETYPE_H <freetype/freetype.h> /************************************************************************* * * @macro: * FT_ERRORS_H * * @description: * A macro used in #include statements to name the file containing the * list of FreeType~2 error codes (and messages). * * It is included by @FT_FREETYPE_H. * */ #define FT_ERRORS_H <freetype/fterrors.h> /************************************************************************* * * @macro: * FT_MODULE_ERRORS_H * * @description: * A macro used in #include statements to name the file containing the * list of FreeType~2 module error offsets (and messages). * */ #define FT_MODULE_ERRORS_H <freetype/ftmoderr.h> /************************************************************************* * * @macro: * FT_SYSTEM_H * * @description: * A macro used in #include statements to name the file containing the * FreeType~2 interface to low-level operations (i.e., memory management * and stream i/o). * * It is included by @FT_FREETYPE_H. * */ #define FT_SYSTEM_H <freetype/ftsystem.h> /************************************************************************* * * @macro: * FT_IMAGE_H * * @description: * A macro used in #include statements to name the file containing type * definitions related to glyph images (i.e., bitmaps, outlines, * scan-converter parameters). * * It is included by @FT_FREETYPE_H. * */ #define FT_IMAGE_H <freetype/ftimage.h> /************************************************************************* * * @macro: * FT_TYPES_H * * @description: * A macro used in #include statements to name the file containing the * basic data types defined by FreeType~2. * * It is included by @FT_FREETYPE_H. * */ #define FT_TYPES_H <freetype/fttypes.h> /************************************************************************* * * @macro: * FT_LIST_H * * @description: * A macro used in #include statements to name the file containing the * list management API of FreeType~2. * * (Most applications will never need to include this file.) * */ #define FT_LIST_H <freetype/ftlist.h> /************************************************************************* * * @macro: * FT_OUTLINE_H * * @description: * A macro used in #include statements to name the file containing the * scalable outline management API of FreeType~2. * */ #define FT_OUTLINE_H <freetype/ftoutln.h> /************************************************************************* * * @macro: * FT_SIZES_H * * @description: * A macro used in #include statements to name the file containing the * API which manages multiple @FT_Size objects per face. * */ #define FT_SIZES_H <freetype/ftsizes.h> /************************************************************************* * * @macro: * FT_MODULE_H * * @description: * A macro used in #include statements to name the file containing the * module management API of FreeType~2. * */ #define FT_MODULE_H <freetype/ftmodapi.h> /************************************************************************* * * @macro: * FT_RENDER_H * * @description: * A macro used in #include statements to name the file containing the * renderer module management API of FreeType~2. * */ #define FT_RENDER_H <freetype/ftrender.h> /************************************************************************* * * @macro: * FT_TYPE1_TABLES_H * * @description: * A macro used in #include statements to name the file containing the * types and API specific to the Type~1 format. * */ #define FT_TYPE1_TABLES_H <freetype/t1tables.h> /************************************************************************* * * @macro: * FT_TRUETYPE_IDS_H * * @description: * A macro used in #include statements to name the file containing the * enumeration values which identify name strings, languages, encodings, * etc. This file really contains a _large_ set of constant macro * definitions, taken from the TrueType and OpenType specifications. * */ #define FT_TRUETYPE_IDS_H <freetype/ttnameid.h> /************************************************************************* * * @macro: * FT_TRUETYPE_TABLES_H * * @description: * A macro used in #include statements to name the file containing the * types and API specific to the TrueType (as well as OpenType) format. * */ #define FT_TRUETYPE_TABLES_H <freetype/tttables.h> /************************************************************************* * * @macro: * FT_TRUETYPE_TAGS_H * * @description: * A macro used in #include statements to name the file containing the * definitions of TrueType four-byte `tags' which identify blocks in * SFNT-based font formats (i.e., TrueType and OpenType). * */ #define FT_TRUETYPE_TAGS_H <freetype/tttags.h> /************************************************************************* * * @macro: * FT_BDF_H * * @description: * A macro used in #include statements to name the file containing the * definitions of an API which accesses BDF-specific strings from a * face. * */ #define FT_BDF_H <freetype/ftbdf.h> /************************************************************************* * * @macro: * FT_CID_H * * @description: * A macro used in #include statements to name the file containing the * definitions of an API which access CID font information from a * face. * */ #define FT_CID_H <freetype/ftcid.h> /************************************************************************* * * @macro: * FT_GZIP_H * * @description: * A macro used in #include statements to name the file containing the * definitions of an API which supports gzip-compressed files. * */ #define FT_GZIP_H <freetype/ftgzip.h> /************************************************************************* * * @macro: * FT_LZW_H * * @description: * A macro used in #include statements to name the file containing the * definitions of an API which supports LZW-compressed files. * */ #define FT_LZW_H <freetype/ftlzw.h> /************************************************************************* * * @macro: * FT_BZIP2_H * * @description: * A macro used in #include statements to name the file containing the * definitions of an API which supports bzip2-compressed files. * */ #define FT_BZIP2_H <freetype/ftbzip2.h> /************************************************************************* * * @macro: * FT_WINFONTS_H * * @description: * A macro used in #include statements to name the file containing the * definitions of an API which supports Windows FNT files. * */ #define FT_WINFONTS_H <freetype/ftwinfnt.h> /************************************************************************* * * @macro: * FT_GLYPH_H * * @description: * A macro used in #include statements to name the file containing the * API of the optional glyph management component. * */ #define FT_GLYPH_H <freetype/ftglyph.h> /************************************************************************* * * @macro: * FT_BITMAP_H * * @description: * A macro used in #include statements to name the file containing the * API of the optional bitmap conversion component. * */ #define FT_BITMAP_H <freetype/ftbitmap.h> /************************************************************************* * * @macro: * FT_BBOX_H * * @description: * A macro used in #include statements to name the file containing the * API of the optional exact bounding box computation routines. * */ #define FT_BBOX_H <freetype/ftbbox.h> /************************************************************************* * * @macro: * FT_CACHE_H * * @description: * A macro used in #include statements to name the file containing the * API of the optional FreeType~2 cache sub-system. * */ #define FT_CACHE_H <freetype/ftcache.h> /************************************************************************* * * @macro: * FT_CACHE_IMAGE_H * * @description: * A macro used in #include statements to name the file containing the * `glyph image' API of the FreeType~2 cache sub-system. * * It is used to define a cache for @FT_Glyph elements. You can also * use the API defined in @FT_CACHE_SMALL_BITMAPS_H if you only need to * store small glyph bitmaps, as it will use less memory. * * This macro is deprecated. Simply include @FT_CACHE_H to have all * glyph image-related cache declarations. * */ #define FT_CACHE_IMAGE_H FT_CACHE_H /************************************************************************* * * @macro: * FT_CACHE_SMALL_BITMAPS_H * * @description: * A macro used in #include statements to name the file containing the * `small bitmaps' API of the FreeType~2 cache sub-system. * * It is used to define a cache for small glyph bitmaps in a relatively * memory-efficient way. You can also use the API defined in * @FT_CACHE_IMAGE_H if you want to cache arbitrary glyph images, * including scalable outlines. * * This macro is deprecated. Simply include @FT_CACHE_H to have all * small bitmaps-related cache declarations. * */ #define FT_CACHE_SMALL_BITMAPS_H FT_CACHE_H /************************************************************************* * * @macro: * FT_CACHE_CHARMAP_H * * @description: * A macro used in #include statements to name the file containing the * `charmap' API of the FreeType~2 cache sub-system. * * This macro is deprecated. Simply include @FT_CACHE_H to have all * charmap-based cache declarations. * */ #define FT_CACHE_CHARMAP_H FT_CACHE_H /************************************************************************* * * @macro: * FT_MAC_H * * @description: * A macro used in #include statements to name the file containing the * Macintosh-specific FreeType~2 API. The latter is used to access * fonts embedded in resource forks. * * This header file must be explicitly included by client applications * compiled on the Mac (note that the base API still works though). * */ #define FT_MAC_H <freetype/ftmac.h> /************************************************************************* * * @macro: * FT_MULTIPLE_MASTERS_H * * @description: * A macro used in #include statements to name the file containing the * optional multiple-masters management API of FreeType~2. * */ #define FT_MULTIPLE_MASTERS_H <freetype/ftmm.h> /************************************************************************* * * @macro: * FT_SFNT_NAMES_H * * @description: * A macro used in #include statements to name the file containing the * optional FreeType~2 API which accesses embedded `name' strings in * SFNT-based font formats (i.e., TrueType and OpenType). * */ #define FT_SFNT_NAMES_H <freetype/ftsnames.h> /************************************************************************* * * @macro: * FT_OPENTYPE_VALIDATE_H * * @description: * A macro used in #include statements to name the file containing the * optional FreeType~2 API which validates OpenType tables (BASE, GDEF, * GPOS, GSUB, JSTF). * */ #define FT_OPENTYPE_VALIDATE_H <freetype/ftotval.h> /************************************************************************* * * @macro: * FT_GX_VALIDATE_H * * @description: * A macro used in #include statements to name the file containing the * optional FreeType~2 API which validates TrueTypeGX/AAT tables (feat, * mort, morx, bsln, just, kern, opbd, trak, prop). * */ #define FT_GX_VALIDATE_H <freetype/ftgxval.h> /************************************************************************* * * @macro: * FT_PFR_H * * @description: * A macro used in #include statements to name the file containing the * FreeType~2 API which accesses PFR-specific data. * */ #define FT_PFR_H <freetype/ftpfr.h> /************************************************************************* * * @macro: * FT_STROKER_H * * @description: * A macro used in #include statements to name the file containing the * FreeType~2 API which provides functions to stroke outline paths. */ #define FT_STROKER_H <freetype/ftstroke.h> /************************************************************************* * * @macro: * FT_SYNTHESIS_H * * @description: * A macro used in #include statements to name the file containing the * FreeType~2 API which performs artificial obliquing and emboldening. */ #define FT_SYNTHESIS_H <freetype/ftsynth.h> /************************************************************************* * * @macro: * FT_XFREE86_H * * @description: * A macro used in #include statements to name the file containing the * FreeType~2 API which provides functions specific to the XFree86 and * X.Org X11 servers. */ #define FT_XFREE86_H <freetype/ftxf86.h> /************************************************************************* * * @macro: * FT_TRIGONOMETRY_H * * @description: * A macro used in #include statements to name the file containing the * FreeType~2 API which performs trigonometric computations (e.g., * cosines and arc tangents). */ #define FT_TRIGONOMETRY_H <freetype/fttrigon.h> /************************************************************************* * * @macro: * FT_LCD_FILTER_H * * @description: * A macro used in #include statements to name the file containing the * FreeType~2 API which performs color filtering for subpixel rendering. */ #define FT_LCD_FILTER_H <freetype/ftlcdfil.h> /************************************************************************* * * @macro: * FT_UNPATENTED_HINTING_H * * @description: * A macro used in #include statements to name the file containing the * FreeType~2 API which performs color filtering for subpixel rendering. */ #define FT_UNPATENTED_HINTING_H <freetype/ttunpat.h> /************************************************************************* * * @macro: * FT_INCREMENTAL_H * * @description: * A macro used in #include statements to name the file containing the * FreeType~2 API which performs color filtering for subpixel rendering. */ #define FT_INCREMENTAL_H <freetype/ftincrem.h> /************************************************************************* * * @macro: * FT_GASP_H * * @description: * A macro used in #include statements to name the file containing the * FreeType~2 API which returns entries from the TrueType GASP table. */ #define FT_GASP_H <freetype/ftgasp.h> /************************************************************************* * * @macro: * FT_ADVANCES_H * * @description: * A macro used in #include statements to name the file containing the * FreeType~2 API which returns individual and ranged glyph advances. */ #define FT_ADVANCES_H <freetype/ftadvanc.h> /* */ #define FT_ERROR_DEFINITIONS_H <freetype/fterrdef.h> /* The internals of the cache sub-system are no longer exposed. We */ /* default to FT_CACHE_H at the moment just in case, but we know of */ /* no rogue client that uses them. */ /* */ #define FT_CACHE_MANAGER_H <freetype/ftcache.h> #define FT_CACHE_INTERNAL_MRU_H <freetype/ftcache.h> #define FT_CACHE_INTERNAL_MANAGER_H <freetype/ftcache.h> #define FT_CACHE_INTERNAL_CACHE_H <freetype/ftcache.h> #define FT_CACHE_INTERNAL_GLYPH_H <freetype/ftcache.h> #define FT_CACHE_INTERNAL_IMAGE_H <freetype/ftcache.h> #define FT_CACHE_INTERNAL_SBITS_H <freetype/ftcache.h> #define FT_INCREMENTAL_H <freetype/ftincrem.h> #define FT_TRUETYPE_UNPATENTED_H <freetype/ttunpat.h> /* * Include internal headers definitions from <freetype/internal/...> * only when building the library. */ #ifdef FT2_BUILD_LIBRARY #define FT_INTERNAL_INTERNAL_H <freetype/internal/internal.h> /*** Start of inlined file: internal.h ***/ /* */ /* internal.h */ /* */ /* Internal header files (specification only). */ /* */ /* Copyright 1996-2001, 2002, 2003, 2004 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ /*************************************************************************/ /* */ /* This file is automatically included by `ft2build.h'. */ /* Do not include it manually! */ /* */ /*************************************************************************/ #define FT_INTERNAL_OBJECTS_H <freetype/internal/ftobjs.h> #define FT_INTERNAL_PIC_H <freetype/internal/ftpic.h> #define FT_INTERNAL_STREAM_H <freetype/internal/ftstream.h> #define FT_INTERNAL_MEMORY_H <freetype/internal/ftmemory.h> #define FT_INTERNAL_DEBUG_H <freetype/internal/ftdebug.h> #define FT_INTERNAL_CALC_H <freetype/internal/ftcalc.h> #define FT_INTERNAL_DRIVER_H <freetype/internal/ftdriver.h> #define FT_INTERNAL_TRACE_H <freetype/internal/fttrace.h> #define FT_INTERNAL_GLYPH_LOADER_H <freetype/internal/ftgloadr.h> #define FT_INTERNAL_SFNT_H <freetype/internal/sfnt.h> #define FT_INTERNAL_SERVICE_H <freetype/internal/ftserv.h> #define FT_INTERNAL_RFORK_H <freetype/internal/ftrfork.h> #define FT_INTERNAL_VALIDATE_H <freetype/internal/ftvalid.h> #define FT_INTERNAL_TRUETYPE_TYPES_H <freetype/internal/tttypes.h> #define FT_INTERNAL_TYPE1_TYPES_H <freetype/internal/t1types.h> #define FT_INTERNAL_POSTSCRIPT_AUX_H <freetype/internal/psaux.h> #define FT_INTERNAL_POSTSCRIPT_HINTS_H <freetype/internal/pshints.h> #define FT_INTERNAL_POSTSCRIPT_GLOBALS_H <freetype/internal/psglobal.h> #define FT_INTERNAL_AUTOHINT_H <freetype/internal/autohint.h> /* END */ /*** End of inlined file: internal.h ***/ #endif /* FT2_BUILD_LIBRARY */ #endif /* __FT2_BUILD_H__ */ /* END */ /*** End of inlined file: ftheader.h ***/ #endif /* __FT2_BUILD_GENERIC_H__ */ /* END */ /*** End of inlined file: ft2build.h ***/ /*** Start of inlined file: freetype.h ***/ /* */ /* freetype.h */ /* */ /* FreeType high-level API and common types (specification only). */ /* */ /* Copyright 1996-2012 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ #ifndef __FREETYPE_H__ #define __FREETYPE_H__ #ifndef FT_FREETYPE_H #error "`ft2build.h' hasn't been included yet!" #error "Please always use macros to include FreeType header files." #error "Example:" #error " #include <ft2build.h>" #error " #include FT_FREETYPE_H" #endif /*** Start of inlined file: ftconfig.h ***/ /* */ /* ftconfig.h */ /* */ /* ANSI-specific configuration file (specification only). */ /* */ /* Copyright 1996-2004, 2006-2008, 2010-2011 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ /*************************************************************************/ /* */ /* This header file contains a number of macro definitions that are used */ /* by the rest of the engine. Most of the macros here are automatically */ /* determined at compile time, and you should not need to change it to */ /* port FreeType, except to compile the library with a non-ANSI */ /* compiler. */ /* */ /* Note however that if some specific modifications are needed, we */ /* advise you to place a modified copy in your build directory. */ /* */ /* The build directory is usually `freetype/builds/<system>', and */ /* contains system-specific files that are always included first when */ /* building the library. */ /* */ /* This ANSI version should stay in `include/freetype/config'. */ /* */ /*************************************************************************/ #ifndef __FTCONFIG_H__ #define __FTCONFIG_H__ /*** Start of inlined file: ftoption.h ***/ /* */ /* ftoption.h */ /* */ /* User-selectable configuration macros (specification only). */ /* */ /* Copyright 1996-2012 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ #ifndef __FTOPTION_H__ #define __FTOPTION_H__ FT_BEGIN_HEADER /*************************************************************************/ /* */ /* USER-SELECTABLE CONFIGURATION MACROS */ /* */ /* This file contains the default configuration macro definitions for */ /* a standard build of the FreeType library. There are three ways to */ /* use this file to build project-specific versions of the library: */ /* */ /* - You can modify this file by hand, but this is not recommended in */ /* cases where you would like to build several versions of the */ /* library from a single source directory. */ /* */ /* - You can put a copy of this file in your build directory, more */ /* precisely in `$BUILD/freetype/config/ftoption.h', where `$BUILD' */ /* is the name of a directory that is included _before_ the FreeType */ /* include path during compilation. */ /* */ /* The default FreeType Makefiles and Jamfiles use the build */ /* directory `builds/<system>' by default, but you can easily change */ /* that for your own projects. */ /* */ /* - Copy the file <ft2build.h> to `$BUILD/ft2build.h' and modify it */ /* slightly to pre-define the macro FT_CONFIG_OPTIONS_H used to */ /* locate this file during the build. For example, */ /* */ /* #define FT_CONFIG_OPTIONS_H <myftoptions.h> */ /* #include <freetype/config/ftheader.h> */ /* */ /* will use `$BUILD/myftoptions.h' instead of this file for macro */ /* definitions. */ /* */ /* Note also that you can similarly pre-define the macro */ /* FT_CONFIG_MODULES_H used to locate the file listing of the modules */ /* that are statically linked to the library at compile time. By */ /* default, this file is <freetype/config/ftmodule.h>. */ /* */ /* We highly recommend using the third method whenever possible. */ /* */ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** 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 ****/ /**** ****/ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /* */ /* Uncomment the line below if you want to activate sub-pixel rendering */ /* (a.k.a. LCD rendering, or ClearType) in this build of the library. */ /* */ /* Note that this feature is covered by several Microsoft patents */ /* and should not be activated in any default build of the library. */ /* */ /* This macro has no impact on the FreeType API, only on its */ /* _implementation_. For example, using FT_RENDER_MODE_LCD when calling */ /* FT_Render_Glyph still generates a bitmap that is 3 times wider than */ /* the original size in case this macro isn't defined; however, each */ /* triplet of subpixels has R=G=B. */ /* */ /* This is done to allow FreeType clients to run unmodified, forcing */ /* them to display normal gray-level anti-aliased glyphs. */ /* */ /* #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING */ /*************************************************************************/ /* */ /* Many compilers provide a non-ANSI 64-bit data type that can be used */ /* by FreeType to speed up some computations. However, this will create */ /* some problems when compiling the library in strict ANSI mode. */ /* */ /* For this reason, the use of 64-bit integers is normally disabled when */ /* the __STDC__ macro is defined. You can however disable this by */ /* defining the macro FT_CONFIG_OPTION_FORCE_INT64 here. */ /* */ /* For most compilers, this will only create compilation warnings when */ /* building the library. */ /* */ /* ObNote: The compiler-specific 64-bit integers are detected in the */ /* file `ftconfig.h' either statically or through the */ /* `configure' script on supported platforms. */ /* */ #undef FT_CONFIG_OPTION_FORCE_INT64 /*************************************************************************/ /* */ /* If this macro is defined, do not try to use an assembler version of */ /* performance-critical functions (e.g. FT_MulFix). You should only do */ /* that to verify that the assembler function works properly, or to */ /* execute benchmark tests of the various implementations. */ /* #define FT_CONFIG_OPTION_NO_ASSEMBLER */ /*************************************************************************/ /* */ /* If this macro is defined, try to use an inlined assembler version of */ /* the `FT_MulFix' function, which is a `hotspot' when loading and */ /* hinting glyphs, and which should be executed as fast as possible. */ /* */ /* Note that if your compiler or CPU is not supported, this will default */ /* to the standard and portable implementation found in `ftcalc.c'. */ /* */ #define FT_CONFIG_OPTION_INLINE_MULFIX /*************************************************************************/ /* */ /* LZW-compressed file support. */ /* */ /* FreeType now handles font files that have been compressed with the */ /* `compress' program. This is mostly used to parse many of the PCF */ /* files that come with various X11 distributions. The implementation */ /* uses NetBSD's `zopen' to partially uncompress the file on the fly */ /* (see src/lzw/ftgzip.c). */ /* */ /* Define this macro if you want to enable this `feature'. */ /* */ #define FT_CONFIG_OPTION_USE_LZW /*************************************************************************/ /* */ /* Gzip-compressed file support. */ /* */ /* FreeType now handles font files that have been compressed with the */ /* `gzip' program. This is mostly used to parse many of the PCF files */ /* that come with XFree86. The implementation uses `zlib' to */ /* partially uncompress the file on the fly (see src/gzip/ftgzip.c). */ /* */ /* Define this macro if you want to enable this `feature'. See also */ /* the macro FT_CONFIG_OPTION_SYSTEM_ZLIB below. */ /* */ #define FT_CONFIG_OPTION_USE_ZLIB /*************************************************************************/ /* */ /* ZLib library selection */ /* */ /* This macro is only used when FT_CONFIG_OPTION_USE_ZLIB is defined. */ /* It allows FreeType's `ftgzip' component to link to the system's */ /* installation of the ZLib library. This is useful on systems like */ /* Unix or VMS where it generally is already available. */ /* */ /* If you let it undefined, the component will use its own copy */ /* of the zlib sources instead. These have been modified to be */ /* included directly within the component and *not* export external */ /* function names. This allows you to link any program with FreeType */ /* _and_ ZLib without linking conflicts. */ /* */ /* Do not #undef this macro here since the build system might define */ /* it for certain configurations only. */ /* */ /* #define FT_CONFIG_OPTION_SYSTEM_ZLIB */ /*************************************************************************/ /* */ /* Bzip2-compressed file support. */ /* */ /* FreeType now handles font files that have been compressed with the */ /* `bzip2' program. This is mostly used to parse many of the PCF */ /* files that come with XFree86. The implementation uses `libbz2' to */ /* partially uncompress the file on the fly (see src/bzip2/ftbzip2.c). */ /* Contrary to gzip, bzip2 currently is not included and need to use */ /* the system available bzip2 implementation. */ /* */ /* Define this macro if you want to enable this `feature'. */ /* */ /* #define FT_CONFIG_OPTION_USE_BZIP2 */ /*************************************************************************/ /* */ /* Define to disable the use of file stream functions and types, FILE, */ /* fopen() etc. Enables the use of smaller system libraries on embedded */ /* systems that have multiple system libraries, some with or without */ /* file stream support, in the cases where file stream support is not */ /* necessary such as memory loading of font files. */ /* */ /* #define FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT */ /*************************************************************************/ /* */ /* DLL export compilation */ /* */ /* When compiling FreeType as a DLL, some systems/compilers need a */ /* special keyword in front OR after the return type of function */ /* declarations. */ /* */ /* Two macros are used within the FreeType source code to define */ /* exported library functions: FT_EXPORT and FT_EXPORT_DEF. */ /* */ /* FT_EXPORT( return_type ) */ /* */ /* is used in a function declaration, as in */ /* */ /* FT_EXPORT( FT_Error ) */ /* FT_Init_FreeType( FT_Library* alibrary ); */ /* */ /* */ /* FT_EXPORT_DEF( return_type ) */ /* */ /* is used in a function definition, as in */ /* */ /* FT_EXPORT_DEF( FT_Error ) */ /* FT_Init_FreeType( FT_Library* alibrary ) */ /* { */ /* ... some code ... */ /* return FT_Err_Ok; */ /* } */ /* */ /* You can provide your own implementation of FT_EXPORT and */ /* FT_EXPORT_DEF here if you want. If you leave them undefined, they */ /* will be later automatically defined as `extern return_type' to */ /* allow normal compilation. */ /* */ /* Do not #undef these macros here since the build system might define */ /* them for certain configurations only. */ /* */ /* #define FT_EXPORT(x) extern x */ /* #define FT_EXPORT_DEF(x) x */ /*************************************************************************/ /* */ /* Glyph Postscript Names handling */ /* */ /* By default, FreeType 2 is compiled with the `psnames' module. This */ /* module is in charge of converting a glyph name string into a */ /* Unicode value, or return a Macintosh standard glyph name for the */ /* use with the TrueType `post' table. */ /* */ /* Undefine this macro if you do not want `psnames' compiled in your */ /* build of FreeType. This has the following effects: */ /* */ /* - The TrueType driver will provide its own set of glyph names, */ /* if you build it to support postscript names in the TrueType */ /* `post' table. */ /* */ /* - The Type 1 driver will not be able to synthesize a Unicode */ /* charmap out of the glyphs found in the fonts. */ /* */ /* You would normally undefine this configuration macro when building */ /* a version of FreeType that doesn't contain a Type 1 or CFF driver. */ /* */ #define FT_CONFIG_OPTION_POSTSCRIPT_NAMES /*************************************************************************/ /* */ /* Postscript Names to Unicode Values support */ /* */ /* By default, FreeType 2 is built with the `PSNames' module compiled */ /* in. Among other things, the module is used to convert a glyph name */ /* into a Unicode value. This is especially useful in order to */ /* synthesize on the fly a Unicode charmap from the CFF/Type 1 driver */ /* through a big table named the `Adobe Glyph List' (AGL). */ /* */ /* Undefine this macro if you do not want the Adobe Glyph List */ /* compiled in your `PSNames' module. The Type 1 driver will not be */ /* able to synthesize a Unicode charmap out of the glyphs found in the */ /* fonts. */ /* */ #define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST /*************************************************************************/ /* */ /* Support for Mac fonts */ /* */ /* Define this macro if you want support for outline fonts in Mac */ /* format (mac dfont, mac resource, macbinary containing a mac */ /* resource) on non-Mac platforms. */ /* */ /* Note that the `FOND' resource isn't checked. */ /* */ #define FT_CONFIG_OPTION_MAC_FONTS /*************************************************************************/ /* */ /* Guessing methods to access embedded resource forks */ /* */ /* Enable extra Mac fonts support on non-Mac platforms (e.g. */ /* GNU/Linux). */ /* */ /* Resource forks which include fonts data are stored sometimes in */ /* locations which users or developers don't expected. In some cases, */ /* resource forks start with some offset from the head of a file. In */ /* other cases, the actual resource fork is stored in file different */ /* from what the user specifies. If this option is activated, */ /* FreeType tries to guess whether such offsets or different file */ /* names must be used. */ /* */ /* Note that normal, direct access of resource forks is controlled via */ /* the FT_CONFIG_OPTION_MAC_FONTS option. */ /* */ #ifdef FT_CONFIG_OPTION_MAC_FONTS #define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK #endif /*************************************************************************/ /* */ /* Allow the use of FT_Incremental_Interface to load typefaces that */ /* contain no glyph data, but supply it via a callback function. */ /* This is required by clients supporting document formats which */ /* supply font data incrementally as the document is parsed, such */ /* as the Ghostscript interpreter for the PostScript language. */ /* */ #define FT_CONFIG_OPTION_INCREMENTAL /*************************************************************************/ /* */ /* The size in bytes of the render pool used by the scan-line converter */ /* to do all of its work. */ /* */ /* This must be greater than 4KByte if you use FreeType to rasterize */ /* glyphs; otherwise, you may set it to zero to avoid unnecessary */ /* allocation of the render pool. */ /* */ #define FT_RENDER_POOL_SIZE 16384L /*************************************************************************/ /* */ /* FT_MAX_MODULES */ /* */ /* The maximum number of modules that can be registered in a single */ /* FreeType library object. 32 is the default. */ /* */ #define FT_MAX_MODULES 32 /*************************************************************************/ /* */ /* Debug level */ /* */ /* FreeType can be compiled in debug or trace mode. In debug mode, */ /* errors are reported through the `ftdebug' component. In trace */ /* mode, additional messages are sent to the standard output during */ /* execution. */ /* */ /* Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode. */ /* Define FT_DEBUG_LEVEL_TRACE to build it in trace mode. */ /* */ /* Don't define any of these macros to compile in `release' mode! */ /* */ /* Do not #undef these macros here since the build system might define */ /* them for certain configurations only. */ /* */ /* #define FT_DEBUG_LEVEL_ERROR */ /* #define FT_DEBUG_LEVEL_TRACE */ /*************************************************************************/ /* */ /* Autofitter debugging */ /* */ /* If FT_DEBUG_AUTOFIT is defined, FreeType provides some means to */ /* control the autofitter behaviour for debugging purposes with global */ /* boolean variables (consequently, you should *never* enable this */ /* while compiling in `release' mode): */ /* */ /* _af_debug_disable_horz_hints */ /* _af_debug_disable_vert_hints */ /* _af_debug_disable_blue_hints */ /* */ /* Additionally, the following functions provide dumps of various */ /* internal autofit structures to stdout (using `printf'): */ /* */ /* af_glyph_hints_dump_points */ /* af_glyph_hints_dump_segments */ /* af_glyph_hints_dump_edges */ /* */ /* As an argument, they use another global variable: */ /* */ /* _af_debug_hints */ /* */ /* Please have a look at the `ftgrid' demo program to see how those */ /* variables and macros should be used. */ /* */ /* Do not #undef these macros here since the build system might define */ /* them for certain configurations only. */ /* */ /* #define FT_DEBUG_AUTOFIT */ /*************************************************************************/ /* */ /* Memory Debugging */ /* */ /* FreeType now comes with an integrated memory debugger that is */ /* capable of detecting simple errors like memory leaks or double */ /* deletes. To compile it within your build of the library, you */ /* should define FT_DEBUG_MEMORY here. */ /* */ /* Note that the memory debugger is only activated at runtime when */ /* when the _environment_ variable `FT2_DEBUG_MEMORY' is defined also! */ /* */ /* Do not #undef this macro here since the build system might define */ /* it for certain configurations only. */ /* */ /* #define FT_DEBUG_MEMORY */ /*************************************************************************/ /* */ /* Module errors */ /* */ /* If this macro is set (which is _not_ the default), the higher byte */ /* of an error code gives the module in which the error has occurred, */ /* while the lower byte is the real error code. */ /* */ /* Setting this macro makes sense for debugging purposes only, since */ /* it would break source compatibility of certain programs that use */ /* FreeType 2. */ /* */ /* More details can be found in the files ftmoderr.h and fterrors.h. */ /* */ #undef FT_CONFIG_OPTION_USE_MODULE_ERRORS /*************************************************************************/ /* */ /* Position Independent Code */ /* */ /* If this macro is set (which is _not_ the default), FreeType2 will */ /* avoid creating constants that require address fixups. Instead the */ /* constants will be moved into a struct and additional intialization */ /* code will be used. */ /* */ /* Setting this macro is needed for systems that prohibit address */ /* fixups, such as BREW. */ /* */ /* #define FT_CONFIG_OPTION_PIC */ /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** S F N T D R I V E R C O N F I G U R A T I O N ****/ /**** ****/ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /* */ /* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support */ /* embedded bitmaps in all formats using the SFNT module (namely */ /* TrueType & OpenType). */ /* */ #define TT_CONFIG_OPTION_EMBEDDED_BITMAPS /*************************************************************************/ /* */ /* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to */ /* load and enumerate the glyph Postscript names in a TrueType or */ /* OpenType file. */ /* */ /* Note that when you do not compile the `PSNames' module by undefining */ /* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will */ /* contain additional code used to read the PS Names table from a font. */ /* */ /* (By default, the module uses `PSNames' to extract glyph names.) */ /* */ #define TT_CONFIG_OPTION_POSTSCRIPT_NAMES /*************************************************************************/ /* */ /* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to */ /* access the internal name table in a SFNT-based format like TrueType */ /* or OpenType. The name table contains various strings used to */ /* describe the font, like family name, copyright, version, etc. It */ /* does not contain any glyph name though. */ /* */ /* Accessing SFNT names is done through the functions declared in */ /* `freetype/ftsnames.h'. */ /* */ #define TT_CONFIG_OPTION_SFNT_NAMES /*************************************************************************/ /* */ /* TrueType CMap support */ /* */ /* Here you can fine-tune which TrueType CMap table format shall be */ /* supported. */ #define TT_CONFIG_CMAP_FORMAT_0 #define TT_CONFIG_CMAP_FORMAT_2 #define TT_CONFIG_CMAP_FORMAT_4 #define TT_CONFIG_CMAP_FORMAT_6 #define TT_CONFIG_CMAP_FORMAT_8 #define TT_CONFIG_CMAP_FORMAT_10 #define TT_CONFIG_CMAP_FORMAT_12 #define TT_CONFIG_CMAP_FORMAT_13 #define TT_CONFIG_CMAP_FORMAT_14 /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** 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 ****/ /**** ****/ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /* */ /* 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://www.microsoft.com/typography/otspec/glyf.htm */ /* 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 maximum 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 */ /*** End of inlined file: ftoption.h ***/ /*** Start of inlined file: ftstdlib.h ***/ /* */ /* ftstdlib.h */ /* */ /* ANSI-specific library and header configuration file (specification */ /* only). */ /* */ /* Copyright 2002-2007, 2009, 2011 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ /*************************************************************************/ /* */ /* This file is used to group all #includes to the ANSI C library that */ /* FreeType normally requires. It also defines macros to rename the */ /* standard functions within the FreeType source code. */ /* */ /* Load a file which defines __FTSTDLIB_H__ before this one to override */ /* it. */ /* */ /*************************************************************************/ #ifndef __FTSTDLIB_H__ #define __FTSTDLIB_H__ #include <stddef.h> #define ft_ptrdiff_t ptrdiff_t /**********************************************************************/ /* */ /* integer limits */ /* */ /* UINT_MAX and ULONG_MAX are used to automatically compute the size */ /* of `int' and `long' in bytes at compile-time. So far, this works */ /* for all platforms the library has been tested on. */ /* */ /* Note that on the extremely rare platforms that do not provide */ /* integer types that are _exactly_ 16 and 32 bits wide (e.g. some */ /* old Crays where `int' is 36 bits), we do not make any guarantee */ /* about the correct behaviour of FT2 with all fonts. */ /* */ /* In these case, `ftconfig.h' will refuse to compile anyway with a */ /* message like `couldn't find 32-bit type' or something similar. */ /* */ /**********************************************************************/ #include <limits.h> #define FT_CHAR_BIT CHAR_BIT #define FT_USHORT_MAX USHRT_MAX #define FT_INT_MAX INT_MAX #define FT_INT_MIN INT_MIN #define FT_UINT_MAX UINT_MAX #define FT_ULONG_MAX ULONG_MAX /**********************************************************************/ /* */ /* character and string processing */ /* */ /**********************************************************************/ #include <string.h> #define ft_memchr memchr #define ft_memcmp memcmp #define ft_memcpy memcpy #define ft_memmove memmove #define ft_memset memset #define ft_strcat strcat #define ft_strcmp strcmp #define ft_strcpy strcpy #define ft_strlen strlen #define ft_strncmp strncmp #define ft_strncpy strncpy #define ft_strrchr strrchr #define ft_strstr strstr /**********************************************************************/ /* */ /* file handling */ /* */ /**********************************************************************/ #include <stdio.h> #define FT_FILE FILE #define ft_fclose fclose #define ft_fopen fopen #define ft_fread fread #define ft_fseek fseek #define ft_ftell ftell #define ft_sprintf sprintf /**********************************************************************/ /* */ /* sorting */ /* */ /**********************************************************************/ #include <stdlib.h> #define ft_qsort qsort /**********************************************************************/ /* */ /* memory allocation */ /* */ /**********************************************************************/ #define ft_scalloc calloc #define ft_sfree free #define ft_smalloc malloc #define ft_srealloc realloc /**********************************************************************/ /* */ /* miscellaneous */ /* */ /**********************************************************************/ #define ft_atol atol #define ft_labs labs /**********************************************************************/ /* */ /* execution control */ /* */ /**********************************************************************/ #include <setjmp.h> #define ft_jmp_buf jmp_buf /* note: this cannot be a typedef since */ /* jmp_buf is defined as a macro */ /* on certain platforms */ #define ft_longjmp longjmp #define ft_setjmp( b ) setjmp( *(jmp_buf*) &(b) ) /* same thing here */ /* the following is only used for debugging purposes, i.e., if */ /* FT_DEBUG_LEVEL_ERROR or FT_DEBUG_LEVEL_TRACE are defined */ #include <stdarg.h> #endif /* __FTSTDLIB_H__ */ /* END */ /*** End of inlined file: ftstdlib.h ***/ FT_BEGIN_HEADER /*************************************************************************/ /* */ /* PLATFORM-SPECIFIC CONFIGURATION MACROS */ /* */ /* These macros can be toggled to suit a specific system. The current */ /* ones are defaults used to compile FreeType in an ANSI C environment */ /* (16bit compilers are also supported). Copy this file to your own */ /* `freetype/builds/<system>' directory, and edit it to port the engine. */ /* */ /*************************************************************************/ /* There are systems (like the Texas Instruments 'C54x) where a `char' */ /* has 16 bits. ANSI C says that sizeof(char) is always 1. Since an */ /* `int' has 16 bits also for this system, sizeof(int) gives 1 which */ /* is probably unexpected. */ /* */ /* `CHAR_BIT' (defined in limits.h) gives the number of bits in a */ /* `char' type. */ #ifndef FT_CHAR_BIT #define FT_CHAR_BIT CHAR_BIT #endif /* The size of an `int' type. */ #if FT_UINT_MAX == 0xFFFFUL #define FT_SIZEOF_INT (16 / FT_CHAR_BIT) #elif FT_UINT_MAX == 0xFFFFFFFFUL #define FT_SIZEOF_INT (32 / FT_CHAR_BIT) #elif FT_UINT_MAX > 0xFFFFFFFFUL && FT_UINT_MAX == 0xFFFFFFFFFFFFFFFFUL #define FT_SIZEOF_INT (64 / FT_CHAR_BIT) #else #error "Unsupported size of `int' type!" #endif /* The size of a `long' type. A five-byte `long' (as used e.g. on the */ /* DM642) is recognized but avoided. */ #if FT_ULONG_MAX == 0xFFFFFFFFUL #define FT_SIZEOF_LONG (32 / FT_CHAR_BIT) #elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFUL #define FT_SIZEOF_LONG (32 / FT_CHAR_BIT) #elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFFFFFFFUL #define FT_SIZEOF_LONG (64 / FT_CHAR_BIT) #else #error "Unsupported size of `long' type!" #endif /* FT_UNUSED is a macro used to indicate that a given parameter is not */ /* used -- this is only used to get rid of unpleasant compiler warnings */ #ifndef FT_UNUSED #define FT_UNUSED( arg ) ( (arg) = (arg) ) #endif /*************************************************************************/ /* */ /* AUTOMATIC CONFIGURATION MACROS */ /* */ /* These macros are computed from the ones defined above. Don't touch */ /* their definition, unless you know precisely what you are doing. No */ /* porter should need to mess with them. */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* Mac support */ /* */ /* This is the only necessary change, so it is defined here instead */ /* providing a new configuration file. */ /* */ #if defined( __APPLE__ ) || ( defined( __MWERKS__ ) && defined( macintosh ) ) /* no Carbon frameworks for 64bit 10.4.x */ /* AvailabilityMacros.h is available since Mac OS X 10.2, */ /* so guess the system version by maximum errno before inclusion */ #include <errno.h> #ifdef ECANCELED /* defined since 10.2 */ #include "AvailabilityMacros.h" #endif #if defined( __LP64__ ) && \ ( MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4 ) #undef FT_MACINTOSH #endif #elif defined( __SC__ ) || defined( __MRC__ ) /* Classic MacOS compilers */ #include "ConditionalMacros.h" #if TARGET_OS_MAC #define FT_MACINTOSH 1 #endif #endif /*************************************************************************/ /* */ /* <Section> */ /* basic_types */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* <Type> */ /* FT_Int16 */ /* */ /* <Description> */ /* A typedef for a 16bit signed integer type. */ /* */ typedef signed short FT_Int16; /*************************************************************************/ /* */ /* <Type> */ /* FT_UInt16 */ /* */ /* <Description> */ /* A typedef for a 16bit unsigned integer type. */ /* */ typedef unsigned short FT_UInt16; /* */ /* this #if 0 ... #endif clause is for documentation purposes */ #if 0 /*************************************************************************/ /* */ /* <Type> */ /* FT_Int32 */ /* */ /* <Description> */ /* A typedef for a 32bit signed integer type. The size depends on */ /* the configuration. */ /* */ typedef signed XXX FT_Int32; /*************************************************************************/ /* */ /* <Type> */ /* FT_UInt32 */ /* */ /* A typedef for a 32bit unsigned integer type. The size depends on */ /* the configuration. */ /* */ typedef unsigned XXX FT_UInt32; /* */ #endif #if FT_SIZEOF_INT == (32 / FT_CHAR_BIT) typedef signed int FT_Int32; typedef unsigned int FT_UInt32; #elif FT_SIZEOF_LONG == (32 / FT_CHAR_BIT) typedef signed long FT_Int32; typedef unsigned long FT_UInt32; #else #error "no 32bit type found -- please check your configuration files" #endif /* look up an integer type that is at least 32 bits */ #if FT_SIZEOF_INT >= (32 / FT_CHAR_BIT) typedef int FT_Fast; typedef unsigned int FT_UFast; #elif FT_SIZEOF_LONG >= (32 / FT_CHAR_BIT) typedef long FT_Fast; typedef unsigned long FT_UFast; #endif /* determine whether we have a 64-bit int type for platforms without */ /* Autoconf */ #if FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) /* FT_LONG64 must be defined if a 64-bit type is available */ #define FT_LONG64 #define FT_INT64 long #elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */ /* this compiler provides the __int64 type */ #define FT_LONG64 #define FT_INT64 __int64 #elif defined( __BORLANDC__ ) /* Borland C++ */ /* XXXX: We should probably check the value of __BORLANDC__ in order */ /* to test the compiler version. */ /* this compiler provides the __int64 type */ #define FT_LONG64 #define FT_INT64 __int64 #elif defined( __WATCOMC__ ) /* Watcom C++ */ /* Watcom doesn't provide 64-bit data types */ #elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */ #define FT_LONG64 #define FT_INT64 long long int #elif defined( __GNUC__ ) /* GCC provides the `long long' type */ #define FT_LONG64 #define FT_INT64 long long int #endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */ /*************************************************************************/ /* */ /* A 64-bit data type will create compilation problems if you compile */ /* in strict ANSI mode. To avoid them, we disable its use if __STDC__ */ /* is defined. You can however ignore this rule by defining the */ /* FT_CONFIG_OPTION_FORCE_INT64 configuration macro. */ /* */ #if defined( FT_LONG64 ) && !defined( FT_CONFIG_OPTION_FORCE_INT64 ) #ifdef __STDC__ /* undefine the 64-bit macros in strict ANSI compilation mode */ #undef FT_LONG64 #undef FT_INT64 #endif /* __STDC__ */ #endif /* FT_LONG64 && !FT_CONFIG_OPTION_FORCE_INT64 */ #define FT_BEGIN_STMNT do { #define FT_END_STMNT } while ( 0 ) #define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT #ifndef FT_CONFIG_OPTION_NO_ASSEMBLER /* Provide assembler fragments for performance-critical functions. */ /* These must be defined `static __inline__' with GCC. */ #if defined( __CC_ARM ) || defined( __ARMCC__ ) /* RVCT */ #define FT_MULFIX_ASSEMBLER FT_MulFix_arm /* documentation is in freetype.h */ static __inline FT_Int32 FT_MulFix_arm( FT_Int32 a, FT_Int32 b ) { register FT_Int32 t, t2; __asm { smull t2, t, b, a /* (lo=t2,hi=t) = a*b */ mov a, t, asr #31 /* a = (hi >> 31) */ add a, a, #0x8000 /* a += 0x8000 */ adds t2, t2, a /* t2 += a */ adc t, t, #0 /* t += carry */ mov a, t2, lsr #16 /* a = t2 >> 16 */ orr a, a, t, lsl #16 /* a |= t << 16 */ } return a; } #endif /* __CC_ARM || __ARMCC__ */ #ifdef __GNUC__ #if defined( __arm__ ) && !defined( __thumb__ ) && \ !( defined( __CC_ARM ) || defined( __ARMCC__ ) ) #define FT_MULFIX_ASSEMBLER FT_MulFix_arm /* documentation is in freetype.h */ static __inline__ FT_Int32 FT_MulFix_arm( FT_Int32 a, FT_Int32 b ) { register FT_Int32 t, t2; __asm__ __volatile__ ( "smull %1, %2, %4, %3\n\t" /* (lo=%1,hi=%2) = a*b */ "mov %0, %2, asr #31\n\t" /* %0 = (hi >> 31) */ "add %0, %0, #0x8000\n\t" /* %0 += 0x8000 */ "adds %1, %1, %0\n\t" /* %1 += %0 */ "adc %2, %2, #0\n\t" /* %2 += carry */ "mov %0, %1, lsr #16\n\t" /* %0 = %1 >> 16 */ "orr %0, %0, %2, lsl #16\n\t" /* %0 |= %2 << 16 */ : "=r"(a), "=&r"(t2), "=&r"(t) : "r"(a), "r"(b) ); return a; } #endif /* __arm__ && !__thumb__ && !( __CC_ARM || __ARMCC__ ) */ #if defined( __i386__ ) #define FT_MULFIX_ASSEMBLER FT_MulFix_i386 /* documentation is in freetype.h */ static __inline__ FT_Int32 FT_MulFix_i386( FT_Int32 a, FT_Int32 b ) { register FT_Int32 result; __asm__ __volatile__ ( "imul %%edx\n" "movl %%edx, %%ecx\n" "sarl $31, %%ecx\n" "addl $0x8000, %%ecx\n" "addl %%ecx, %%eax\n" "adcl $0, %%edx\n" "shrl $16, %%eax\n" "shll $16, %%edx\n" "addl %%edx, %%eax\n" : "=a"(result), "=d"(b) : "a"(a), "d"(b) : "%ecx", "cc" ); return result; } #endif /* i386 */ #endif /* __GNUC__ */ #ifdef _MSC_VER /* Visual C++ */ #ifdef _M_IX86 #define FT_MULFIX_ASSEMBLER FT_MulFix_i386 /* documentation is in freetype.h */ static __inline FT_Int32 FT_MulFix_i386( FT_Int32 a, FT_Int32 b ) { register FT_Int32 result; __asm { mov eax, a mov edx, b imul edx mov ecx, edx sar ecx, 31 add ecx, 8000h add eax, ecx adc edx, 0 shr eax, 16 shl edx, 16 add eax, edx mov result, eax } return result; } #endif /* _M_IX86 */ #endif /* _MSC_VER */ #endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */ #ifdef FT_CONFIG_OPTION_INLINE_MULFIX #ifdef FT_MULFIX_ASSEMBLER #define FT_MULFIX_INLINED FT_MULFIX_ASSEMBLER #endif #endif #ifdef FT_MAKE_OPTION_SINGLE_OBJECT #define FT_LOCAL( x ) static x #define FT_LOCAL_DEF( x ) static x #else #ifdef __cplusplus #define FT_LOCAL( x ) extern "C" x #define FT_LOCAL_DEF( x ) extern "C" x #else #define FT_LOCAL( x ) extern x #define FT_LOCAL_DEF( x ) x #endif #endif /* FT_MAKE_OPTION_SINGLE_OBJECT */ #ifndef FT_BASE #ifdef __cplusplus #define FT_BASE( x ) extern "C" x #else #define FT_BASE( x ) extern x #endif #endif /* !FT_BASE */ #ifndef FT_BASE_DEF #ifdef __cplusplus #define FT_BASE_DEF( x ) x #else #define FT_BASE_DEF( x ) x #endif #endif /* !FT_BASE_DEF */ #ifndef FT_EXPORT #ifdef __cplusplus #define FT_EXPORT( x ) extern "C" x #else #define FT_EXPORT( x ) extern x #endif #endif /* !FT_EXPORT */ #ifndef FT_EXPORT_DEF #ifdef __cplusplus #define FT_EXPORT_DEF( x ) extern "C" x #else #define FT_EXPORT_DEF( x ) extern x #endif #endif /* !FT_EXPORT_DEF */ #ifndef FT_EXPORT_VAR #ifdef __cplusplus #define FT_EXPORT_VAR( x ) extern "C" x #else #define FT_EXPORT_VAR( x ) extern x #endif #endif /* !FT_EXPORT_VAR */ /* The following macros are needed to compile the library with a */ /* C++ compiler and with 16bit compilers. */ /* */ /* This is special. Within C++, you must specify `extern "C"' for */ /* functions which are used via function pointers, and you also */ /* must do that for structures which contain function pointers to */ /* assure C linkage -- it's not possible to have (local) anonymous */ /* functions which are accessed by (global) function pointers. */ /* */ /* */ /* FT_CALLBACK_DEF is used to _define_ a callback function. */ /* */ /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */ /* contains pointers to callback functions. */ /* */ /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */ /* that contains pointers to callback functions. */ /* */ /* */ /* Some 16bit compilers have to redefine these macros to insert */ /* the infamous `_cdecl' or `__fastcall' declarations. */ /* */ #ifndef FT_CALLBACK_DEF #ifdef __cplusplus #define FT_CALLBACK_DEF( x ) extern "C" x #else #define FT_CALLBACK_DEF( x ) static x #endif #endif /* FT_CALLBACK_DEF */ #ifndef FT_CALLBACK_TABLE #ifdef __cplusplus #define FT_CALLBACK_TABLE extern "C" #define FT_CALLBACK_TABLE_DEF extern "C" #else #define FT_CALLBACK_TABLE extern #define FT_CALLBACK_TABLE_DEF /* nothing */ #endif #endif /* FT_CALLBACK_TABLE */ FT_END_HEADER #endif /* __FTCONFIG_H__ */ /* END */ /*** End of inlined file: ftconfig.h ***/ /*** Start of inlined file: fterrors.h ***/ /* */ /* fterrors.h */ /* */ /* FreeType error code handling (specification). */ /* */ /* Copyright 1996-2001, 2002, 2004, 2007 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ /*************************************************************************/ /* */ /* This special header file is used to define the handling of FT2 */ /* enumeration constants. It can also be used to generate error message */ /* strings with a small macro trick explained below. */ /* */ /* I - Error Formats */ /* ----------------- */ /* */ /* The configuration macro FT_CONFIG_OPTION_USE_MODULE_ERRORS can be */ /* defined in ftoption.h in order to make the higher byte indicate */ /* the module where the error has happened (this is not compatible */ /* with standard builds of FreeType 2). You can then use the macro */ /* FT_ERROR_BASE macro to extract the generic error code from an */ /* FT_Error value. */ /* */ /* */ /* II - Error Message strings */ /* -------------------------- */ /* */ /* The error definitions below are made through special macros that */ /* allow client applications to build a table of error message strings */ /* if they need it. The strings are not included in a normal build of */ /* FreeType 2 to save space (most client applications do not use */ /* them). */ /* */ /* To do so, you have to define the following macros before including */ /* this file: */ /* */ /* FT_ERROR_START_LIST :: */ /* This macro is called before anything else to define the start of */ /* the error list. It is followed by several FT_ERROR_DEF calls */ /* (see below). */ /* */ /* FT_ERROR_DEF( e, v, s ) :: */ /* This macro is called to define one single error. */ /* `e' is the error code identifier (e.g. FT_Err_Invalid_Argument). */ /* `v' is the error numerical value. */ /* `s' is the corresponding error string. */ /* */ /* FT_ERROR_END_LIST :: */ /* This macro ends the list. */ /* */ /* Additionally, you have to undefine __FTERRORS_H__ before #including */ /* this file. */ /* */ /* Here is a simple example: */ /* */ /* { */ /* #undef __FTERRORS_H__ */ /* #define FT_ERRORDEF( e, v, s ) { e, s }, */ /* #define FT_ERROR_START_LIST { */ /* #define FT_ERROR_END_LIST { 0, 0 } }; */ /* */ /* const struct */ /* { */ /* int err_code; */ /* const char* err_msg; */ /* } ft_errors[] = */ /* */ /* #include FT_ERRORS_H */ /* } */ /* */ /*************************************************************************/ #ifndef __FTERRORS_H__ #define __FTERRORS_H__ /* include module base error codes */ /*** Start of inlined file: ftmoderr.h ***/ /* */ /* ftmoderr.h */ /* */ /* FreeType module error offsets (specification). */ /* */ /* Copyright 2001, 2002, 2003, 2004, 2005, 2010 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ /*************************************************************************/ /* */ /* This file is used to define the FreeType module error offsets. */ /* */ /* The lower byte gives the error code, the higher byte gives the */ /* module. The base module has error offset 0. For example, the error */ /* `FT_Err_Invalid_File_Format' has value 0x003, the error */ /* `TT_Err_Invalid_File_Format' has value 0x1103, the error */ /* `T1_Err_Invalid_File_Format' has value 0x1203, etc. */ /* */ /* Undefine the macro FT_CONFIG_OPTION_USE_MODULE_ERRORS in ftoption.h */ /* to make the higher byte always zero (disabling the module error */ /* mechanism). */ /* */ /* It can also be used to create a module error message table easily */ /* with something like */ /* */ /* { */ /* #undef __FTMODERR_H__ */ /* #define FT_MODERRDEF( e, v, s ) { FT_Mod_Err_ ## e, s }, */ /* #define FT_MODERR_START_LIST { */ /* #define FT_MODERR_END_LIST { 0, 0 } }; */ /* */ /* const struct */ /* { */ /* int mod_err_offset; */ /* const char* mod_err_msg */ /* } ft_mod_errors[] = */ /* */ /* #include FT_MODULE_ERRORS_H */ /* } */ /* */ /* To use such a table, all errors must be ANDed with 0xFF00 to remove */ /* the error code. */ /* */ /*************************************************************************/ #ifndef __FTMODERR_H__ #define __FTMODERR_H__ /*******************************************************************/ /*******************************************************************/ /***** *****/ /***** SETUP MACROS *****/ /***** *****/ /*******************************************************************/ /*******************************************************************/ #undef FT_NEED_EXTERN_C #ifndef FT_MODERRDEF #ifdef FT_CONFIG_OPTION_USE_MODULE_ERRORS #define FT_MODERRDEF( e, v, s ) FT_Mod_Err_ ## e = v, #else #define FT_MODERRDEF( e, v, s ) FT_Mod_Err_ ## e = 0, #endif #define FT_MODERR_START_LIST enum { #define FT_MODERR_END_LIST FT_Mod_Err_Max }; #ifdef __cplusplus #define FT_NEED_EXTERN_C extern "C" { #endif #endif /* !FT_MODERRDEF */ /*******************************************************************/ /*******************************************************************/ /***** *****/ /***** LIST MODULE ERROR BASES *****/ /***** *****/ /*******************************************************************/ /*******************************************************************/ #ifdef FT_MODERR_START_LIST FT_MODERR_START_LIST #endif FT_MODERRDEF( Base, 0x000, "base module" ) FT_MODERRDEF( Autofit, 0x100, "autofitter module" ) FT_MODERRDEF( BDF, 0x200, "BDF module" ) FT_MODERRDEF( Bzip2, 0x300, "Bzip2 module" ) FT_MODERRDEF( Cache, 0x400, "cache module" ) FT_MODERRDEF( CFF, 0x500, "CFF module" ) FT_MODERRDEF( CID, 0x600, "CID module" ) FT_MODERRDEF( Gzip, 0x700, "Gzip module" ) FT_MODERRDEF( LZW, 0x800, "LZW module" ) FT_MODERRDEF( OTvalid, 0x900, "OpenType validation module" ) FT_MODERRDEF( PCF, 0xA00, "PCF module" ) FT_MODERRDEF( PFR, 0xB00, "PFR module" ) FT_MODERRDEF( PSaux, 0xC00, "PS auxiliary module" ) FT_MODERRDEF( PShinter, 0xD00, "PS hinter module" ) FT_MODERRDEF( PSnames, 0xE00, "PS names module" ) FT_MODERRDEF( Raster, 0xF00, "raster module" ) FT_MODERRDEF( SFNT, 0x1000, "SFNT module" ) FT_MODERRDEF( Smooth, 0x1100, "smooth raster module" ) FT_MODERRDEF( TrueType, 0x1200, "TrueType module" ) FT_MODERRDEF( Type1, 0x1300, "Type 1 module" ) FT_MODERRDEF( Type42, 0x1400, "Type 42 module" ) FT_MODERRDEF( Winfonts, 0x1500, "Windows FON/FNT module" ) #ifdef FT_MODERR_END_LIST FT_MODERR_END_LIST #endif /*******************************************************************/ /*******************************************************************/ /***** *****/ /***** CLEANUP *****/ /***** *****/ /*******************************************************************/ /*******************************************************************/ #ifdef FT_NEED_EXTERN_C } #endif #undef FT_MODERR_START_LIST #undef FT_MODERR_END_LIST #undef FT_MODERRDEF #undef FT_NEED_EXTERN_C #endif /* __FTMODERR_H__ */ /* END */ /*** End of inlined file: ftmoderr.h ***/ /*******************************************************************/ /*******************************************************************/ /***** *****/ /***** SETUP MACROS *****/ /***** *****/ /*******************************************************************/ /*******************************************************************/ #undef FT_NEED_EXTERN_C #undef FT_ERR_XCAT #undef FT_ERR_CAT #define FT_ERR_XCAT( x, y ) x ## y #define FT_ERR_CAT( x, y ) FT_ERR_XCAT( x, y ) /* FT_ERR_PREFIX is used as a prefix for error identifiers. */ /* By default, we use `FT_Err_'. */ /* */ #ifndef FT_ERR_PREFIX #define FT_ERR_PREFIX FT_Err_ #endif /* FT_ERR_BASE is used as the base for module-specific errors. */ /* */ #ifdef FT_CONFIG_OPTION_USE_MODULE_ERRORS #ifndef FT_ERR_BASE #define FT_ERR_BASE FT_Mod_Err_Base #endif #else #undef FT_ERR_BASE #define FT_ERR_BASE 0 #endif /* FT_CONFIG_OPTION_USE_MODULE_ERRORS */ /* If FT_ERRORDEF is not defined, we need to define a simple */ /* enumeration type. */ /* */ #ifndef FT_ERRORDEF #define FT_ERRORDEF( e, v, s ) e = v, #define FT_ERROR_START_LIST enum { #define FT_ERROR_END_LIST FT_ERR_CAT( FT_ERR_PREFIX, Max ) }; #ifdef __cplusplus #define FT_NEED_EXTERN_C extern "C" { #endif #endif /* !FT_ERRORDEF */ /* this macro is used to define an error */ #define FT_ERRORDEF_( e, v, s ) \ FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v + FT_ERR_BASE, s ) /* this is only used for <module>_Err_Ok, which must be 0! */ #define FT_NOERRORDEF_( e, v, s ) \ FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v, s ) #ifdef FT_ERROR_START_LIST FT_ERROR_START_LIST #endif /* now include the error codes */ /*** Start of inlined file: fterrdef.h ***/ /* */ /* fterrdef.h */ /* */ /* FreeType error codes (specification). */ /* */ /* Copyright 2002, 2004, 2006, 2007, 2010-2011 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ /*******************************************************************/ /*******************************************************************/ /***** *****/ /***** LIST OF ERROR CODES/MESSAGES *****/ /***** *****/ /*******************************************************************/ /*******************************************************************/ /* You need to define both FT_ERRORDEF_ and FT_NOERRORDEF_ before */ /* including this file. */ /* generic errors */ FT_NOERRORDEF_( Ok, 0x00, \ "no error" ) FT_ERRORDEF_( Cannot_Open_Resource, 0x01, \ "cannot open resource" ) FT_ERRORDEF_( Unknown_File_Format, 0x02, \ "unknown file format" ) FT_ERRORDEF_( Invalid_File_Format, 0x03, \ "broken file" ) FT_ERRORDEF_( Invalid_Version, 0x04, \ "invalid FreeType version" ) FT_ERRORDEF_( Lower_Module_Version, 0x05, \ "module version is too low" ) FT_ERRORDEF_( Invalid_Argument, 0x06, \ "invalid argument" ) FT_ERRORDEF_( Unimplemented_Feature, 0x07, \ "unimplemented feature" ) FT_ERRORDEF_( Invalid_Table, 0x08, \ "broken table" ) FT_ERRORDEF_( Invalid_Offset, 0x09, \ "broken offset within table" ) FT_ERRORDEF_( Array_Too_Large, 0x0A, \ "array allocation size too large" ) FT_ERRORDEF_( Missing_Module, 0x0B, \ "missing module" ) /* glyph/character errors */ FT_ERRORDEF_( Invalid_Glyph_Index, 0x10, \ "invalid glyph index" ) FT_ERRORDEF_( Invalid_Character_Code, 0x11, \ "invalid character code" ) FT_ERRORDEF_( Invalid_Glyph_Format, 0x12, \ "unsupported glyph image format" ) FT_ERRORDEF_( Cannot_Render_Glyph, 0x13, \ "cannot render this glyph format" ) FT_ERRORDEF_( Invalid_Outline, 0x14, \ "invalid outline" ) FT_ERRORDEF_( Invalid_Composite, 0x15, \ "invalid composite glyph" ) FT_ERRORDEF_( Too_Many_Hints, 0x16, \ "too many hints" ) FT_ERRORDEF_( Invalid_Pixel_Size, 0x17, \ "invalid pixel size" ) /* handle errors */ FT_ERRORDEF_( Invalid_Handle, 0x20, \ "invalid object handle" ) FT_ERRORDEF_( Invalid_Library_Handle, 0x21, \ "invalid library handle" ) FT_ERRORDEF_( Invalid_Driver_Handle, 0x22, \ "invalid module handle" ) FT_ERRORDEF_( Invalid_Face_Handle, 0x23, \ "invalid face handle" ) FT_ERRORDEF_( Invalid_Size_Handle, 0x24, \ "invalid size handle" ) FT_ERRORDEF_( Invalid_Slot_Handle, 0x25, \ "invalid glyph slot handle" ) FT_ERRORDEF_( Invalid_CharMap_Handle, 0x26, \ "invalid charmap handle" ) FT_ERRORDEF_( Invalid_Cache_Handle, 0x27, \ "invalid cache manager handle" ) FT_ERRORDEF_( Invalid_Stream_Handle, 0x28, \ "invalid stream handle" ) /* driver errors */ FT_ERRORDEF_( Too_Many_Drivers, 0x30, \ "too many modules" ) FT_ERRORDEF_( Too_Many_Extensions, 0x31, \ "too many extensions" ) /* memory errors */ FT_ERRORDEF_( Out_Of_Memory, 0x40, \ "out of memory" ) FT_ERRORDEF_( Unlisted_Object, 0x41, \ "unlisted object" ) /* stream errors */ FT_ERRORDEF_( Cannot_Open_Stream, 0x51, \ "cannot open stream" ) FT_ERRORDEF_( Invalid_Stream_Seek, 0x52, \ "invalid stream seek" ) FT_ERRORDEF_( Invalid_Stream_Skip, 0x53, \ "invalid stream skip" ) FT_ERRORDEF_( Invalid_Stream_Read, 0x54, \ "invalid stream read" ) FT_ERRORDEF_( Invalid_Stream_Operation, 0x55, \ "invalid stream operation" ) FT_ERRORDEF_( Invalid_Frame_Operation, 0x56, \ "invalid frame operation" ) FT_ERRORDEF_( Nested_Frame_Access, 0x57, \ "nested frame access" ) FT_ERRORDEF_( Invalid_Frame_Read, 0x58, \ "invalid frame read" ) /* raster errors */ FT_ERRORDEF_( Raster_Uninitialized, 0x60, \ "raster uninitialized" ) FT_ERRORDEF_( Raster_Corrupted, 0x61, \ "raster corrupted" ) FT_ERRORDEF_( Raster_Overflow, 0x62, \ "raster overflow" ) FT_ERRORDEF_( Raster_Negative_Height, 0x63, \ "negative height while rastering" ) /* cache errors */ FT_ERRORDEF_( Too_Many_Caches, 0x70, \ "too many registered caches" ) /* TrueType and SFNT errors */ FT_ERRORDEF_( Invalid_Opcode, 0x80, \ "invalid opcode" ) FT_ERRORDEF_( Too_Few_Arguments, 0x81, \ "too few arguments" ) FT_ERRORDEF_( Stack_Overflow, 0x82, \ "stack overflow" ) FT_ERRORDEF_( Code_Overflow, 0x83, \ "code overflow" ) FT_ERRORDEF_( Bad_Argument, 0x84, \ "bad argument" ) FT_ERRORDEF_( Divide_By_Zero, 0x85, \ "division by zero" ) FT_ERRORDEF_( Invalid_Reference, 0x86, \ "invalid reference" ) FT_ERRORDEF_( Debug_OpCode, 0x87, \ "found debug opcode" ) FT_ERRORDEF_( ENDF_In_Exec_Stream, 0x88, \ "found ENDF opcode in execution stream" ) FT_ERRORDEF_( Nested_DEFS, 0x89, \ "nested DEFS" ) FT_ERRORDEF_( Invalid_CodeRange, 0x8A, \ "invalid code range" ) FT_ERRORDEF_( Execution_Too_Long, 0x8B, \ "execution context too long" ) FT_ERRORDEF_( Too_Many_Function_Defs, 0x8C, \ "too many function definitions" ) FT_ERRORDEF_( Too_Many_Instruction_Defs, 0x8D, \ "too many instruction definitions" ) FT_ERRORDEF_( Table_Missing, 0x8E, \ "SFNT font table missing" ) FT_ERRORDEF_( Horiz_Header_Missing, 0x8F, \ "horizontal header (hhea) table missing" ) FT_ERRORDEF_( Locations_Missing, 0x90, \ "locations (loca) table missing" ) FT_ERRORDEF_( Name_Table_Missing, 0x91, \ "name table missing" ) FT_ERRORDEF_( CMap_Table_Missing, 0x92, \ "character map (cmap) table missing" ) FT_ERRORDEF_( Hmtx_Table_Missing, 0x93, \ "horizontal metrics (hmtx) table missing" ) FT_ERRORDEF_( Post_Table_Missing, 0x94, \ "PostScript (post) table missing" ) FT_ERRORDEF_( Invalid_Horiz_Metrics, 0x95, \ "invalid horizontal metrics" ) FT_ERRORDEF_( Invalid_CharMap_Format, 0x96, \ "invalid character map (cmap) format" ) FT_ERRORDEF_( Invalid_PPem, 0x97, \ "invalid ppem value" ) FT_ERRORDEF_( Invalid_Vert_Metrics, 0x98, \ "invalid vertical metrics" ) FT_ERRORDEF_( Could_Not_Find_Context, 0x99, \ "could not find context" ) FT_ERRORDEF_( Invalid_Post_Table_Format, 0x9A, \ "invalid PostScript (post) table format" ) FT_ERRORDEF_( Invalid_Post_Table, 0x9B, \ "invalid PostScript (post) table" ) /* CFF, CID, and Type 1 errors */ FT_ERRORDEF_( Syntax_Error, 0xA0, \ "opcode syntax error" ) FT_ERRORDEF_( Stack_Underflow, 0xA1, \ "argument stack underflow" ) FT_ERRORDEF_( Ignore, 0xA2, \ "ignore" ) FT_ERRORDEF_( No_Unicode_Glyph_Name, 0xA3, \ "no Unicode glyph name found" ) /* BDF errors */ FT_ERRORDEF_( Missing_Startfont_Field, 0xB0, \ "`STARTFONT' field missing" ) FT_ERRORDEF_( Missing_Font_Field, 0xB1, \ "`FONT' field missing" ) FT_ERRORDEF_( Missing_Size_Field, 0xB2, \ "`SIZE' field missing" ) FT_ERRORDEF_( Missing_Fontboundingbox_Field, 0xB3, \ "`FONTBOUNDINGBOX' field missing" ) FT_ERRORDEF_( Missing_Chars_Field, 0xB4, \ "`CHARS' field missing" ) FT_ERRORDEF_( Missing_Startchar_Field, 0xB5, \ "`STARTCHAR' field missing" ) FT_ERRORDEF_( Missing_Encoding_Field, 0xB6, \ "`ENCODING' field missing" ) FT_ERRORDEF_( Missing_Bbx_Field, 0xB7, \ "`BBX' field missing" ) FT_ERRORDEF_( Bbx_Too_Big, 0xB8, \ "`BBX' too big" ) FT_ERRORDEF_( Corrupted_Font_Header, 0xB9, \ "Font header corrupted or missing fields" ) FT_ERRORDEF_( Corrupted_Font_Glyphs, 0xBA, \ "Font glyphs corrupted or missing fields" ) /* END */ /*** End of inlined file: fterrdef.h ***/ #ifdef FT_ERROR_END_LIST FT_ERROR_END_LIST #endif /*******************************************************************/ /*******************************************************************/ /***** *****/ /***** SIMPLE CLEANUP *****/ /***** *****/ /*******************************************************************/ /*******************************************************************/ #ifdef FT_NEED_EXTERN_C } #endif #undef FT_ERROR_START_LIST #undef FT_ERROR_END_LIST #undef FT_ERRORDEF #undef FT_ERRORDEF_ #undef FT_NOERRORDEF_ #undef FT_NEED_EXTERN_C #undef FT_ERR_BASE /* FT_KEEP_ERR_PREFIX is needed for ftvalid.h */ #ifndef FT_KEEP_ERR_PREFIX #undef FT_ERR_PREFIX #else #undef FT_KEEP_ERR_PREFIX #endif #endif /* __FTERRORS_H__ */ /* END */ /*** End of inlined file: fterrors.h ***/ /*** Start of inlined file: fttypes.h ***/ /* */ /* fttypes.h */ /* */ /* FreeType simple types definitions (specification only). */ /* */ /* Copyright 1996-2002, 2004, 2006-2009, 2012 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ #ifndef __FTTYPES_H__ #define __FTTYPES_H__ /*** Start of inlined file: ftsystem.h ***/ /* */ /* ftsystem.h */ /* */ /* FreeType low-level system interface definition (specification). */ /* */ /* Copyright 1996-2001, 2002, 2005, 2010 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ #ifndef __FTSYSTEM_H__ #define __FTSYSTEM_H__ FT_BEGIN_HEADER /*************************************************************************/ /* */ /* <Section> */ /* system_interface */ /* */ /* <Title> */ /* System Interface */ /* */ /* <Abstract> */ /* How FreeType manages memory and i/o. */ /* */ /* <Description> */ /* This section contains various definitions related to memory */ /* management and i/o access. You need to understand this */ /* information if you want to use a custom memory manager or you own */ /* i/o streams. */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* M E M O R Y M A N A G E M E N T */ /* */ /*************************************************************************/ /************************************************************************* * * @type: * FT_Memory * * @description: * A handle to a given memory manager object, defined with an * @FT_MemoryRec structure. * */ typedef struct FT_MemoryRec_* FT_Memory; /************************************************************************* * * @functype: * FT_Alloc_Func * * @description: * A function used to allocate `size' bytes from `memory'. * * @input: * memory :: * A handle to the source memory manager. * * size :: * The size in bytes to allocate. * * @return: * Address of new memory block. 0~in case of failure. * */ typedef void* (*FT_Alloc_Func)( FT_Memory memory, long size ); /************************************************************************* * * @functype: * FT_Free_Func * * @description: * A function used to release a given block of memory. * * @input: * memory :: * A handle to the source memory manager. * * block :: * The address of the target memory block. * */ typedef void (*FT_Free_Func)( FT_Memory memory, void* block ); /************************************************************************* * * @functype: * FT_Realloc_Func * * @description: * A function used to re-allocate a given block of memory. * * @input: * memory :: * A handle to the source memory manager. * * cur_size :: * The block's current size in bytes. * * new_size :: * The block's requested new size. * * block :: * The block's current address. * * @return: * New block address. 0~in case of memory shortage. * * @note: * In case of error, the old block must still be available. * */ typedef void* (*FT_Realloc_Func)( FT_Memory memory, long cur_size, long new_size, void* block ); /************************************************************************* * * @struct: * FT_MemoryRec * * @description: * A structure used to describe a given memory manager to FreeType~2. * * @fields: * user :: * A generic typeless pointer for user data. * * alloc :: * A pointer type to an allocation function. * * free :: * A pointer type to an memory freeing function. * * realloc :: * A pointer type to a reallocation function. * */ struct FT_MemoryRec_ { void* user; FT_Alloc_Func alloc; FT_Free_Func free; FT_Realloc_Func realloc; }; /*************************************************************************/ /* */ /* I / O M A N A G E M E N T */ /* */ /*************************************************************************/ /************************************************************************* * * @type: * FT_Stream * * @description: * A handle to an input stream. * */ typedef struct FT_StreamRec_* FT_Stream; /************************************************************************* * * @struct: * FT_StreamDesc * * @description: * A union type used to store either a long or a pointer. This is used * to store a file descriptor or a `FILE*' in an input stream. * */ typedef union FT_StreamDesc_ { long value; void* pointer; } FT_StreamDesc; /************************************************************************* * * @functype: * FT_Stream_IoFunc * * @description: * A function used to seek and read data from a given input stream. * * @input: * stream :: * A handle to the source stream. * * offset :: * The offset of read in stream (always from start). * * buffer :: * The address of the read buffer. * * count :: * The number of bytes to read from the stream. * * @return: * The number of bytes effectively read by the stream. * * @note: * This function might be called to perform a seek or skip operation * with a `count' of~0. A non-zero return value then indicates an * error. * */ typedef unsigned long (*FT_Stream_IoFunc)( FT_Stream stream, unsigned long offset, unsigned char* buffer, unsigned long count ); /************************************************************************* * * @functype: * FT_Stream_CloseFunc * * @description: * A function used to close a given input stream. * * @input: * stream :: * A handle to the target stream. * */ typedef void (*FT_Stream_CloseFunc)( FT_Stream stream ); /************************************************************************* * * @struct: * FT_StreamRec * * @description: * A structure used to describe an input stream. * * @input: * base :: * For memory-based streams, this is the address of the first stream * byte in memory. This field should always be set to NULL for * disk-based streams. * * size :: * The stream size in bytes. * * pos :: * The current position within the stream. * * descriptor :: * This field is a union that can hold an integer or a pointer. It is * used by stream implementations to store file descriptors or `FILE*' * pointers. * * pathname :: * This field is completely ignored by FreeType. However, it is often * useful during debugging to use it to store the stream's filename * (where available). * * read :: * The stream's input function. * * close :: * The stream's close function. * * memory :: * The memory manager to use to preload frames. This is set * internally by FreeType and shouldn't be touched by stream * implementations. * * cursor :: * This field is set and used internally by FreeType when parsing * frames. * * limit :: * This field is set and used internally by FreeType when parsing * frames. * */ typedef struct FT_StreamRec_ { unsigned char* base; unsigned long size; unsigned long pos; FT_StreamDesc descriptor; FT_StreamDesc pathname; FT_Stream_IoFunc read; FT_Stream_CloseFunc close; FT_Memory memory; unsigned char* cursor; unsigned char* limit; } FT_StreamRec; /* */ FT_END_HEADER #endif /* __FTSYSTEM_H__ */ /* END */ /*** End of inlined file: ftsystem.h ***/ /*** Start of inlined file: ftimage.h ***/ /* */ /* ftimage.h */ /* */ /* FreeType glyph image formats and default raster interface */ /* (specification). */ /* */ /* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */ /* 2010 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ /*************************************************************************/ /* */ /* Note: A `raster' is simply a scan-line converter, used to render */ /* FT_Outlines into FT_Bitmaps. */ /* */ /*************************************************************************/ #ifndef __FTIMAGE_H__ #define __FTIMAGE_H__ /* _STANDALONE_ is from ftgrays.c */ #ifndef _STANDALONE_ #endif FT_BEGIN_HEADER /*************************************************************************/ /* */ /* <Section> */ /* basic_types */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* <Type> */ /* FT_Pos */ /* */ /* <Description> */ /* The type FT_Pos is used to store vectorial coordinates. Depending */ /* on the context, these can represent distances in integer font */ /* units, or 16.16, or 26.6 fixed float pixel coordinates. */ /* */ typedef signed long FT_Pos; /*************************************************************************/ /* */ /* <Struct> */ /* FT_Vector */ /* */ /* <Description> */ /* A simple structure used to store a 2D vector; coordinates are of */ /* the FT_Pos type. */ /* */ /* <Fields> */ /* x :: The horizontal coordinate. */ /* y :: The vertical coordinate. */ /* */ typedef struct FT_Vector_ { FT_Pos x; FT_Pos y; } FT_Vector; /*************************************************************************/ /* */ /* <Struct> */ /* FT_BBox */ /* */ /* <Description> */ /* A structure used to hold an outline's bounding box, i.e., the */ /* coordinates of its extrema in the horizontal and vertical */ /* directions. */ /* */ /* <Fields> */ /* xMin :: The horizontal minimum (left-most). */ /* */ /* yMin :: The vertical minimum (bottom-most). */ /* */ /* xMax :: The horizontal maximum (right-most). */ /* */ /* yMax :: The vertical maximum (top-most). */ /* */ /* <Note> */ /* The bounding box is specified with the coordinates of the lower */ /* left and the upper right corner. In PostScript, those values are */ /* often called (llx,lly) and (urx,ury), respectively. */ /* */ /* If `yMin' is negative, this value gives the glyph's descender. */ /* Otherwise, the glyph doesn't descend below the baseline. */ /* Similarly, if `ymax' is positive, this value gives the glyph's */ /* ascender. */ /* */ /* `xMin' gives the horizontal distance from the glyph's origin to */ /* the left edge of the glyph's bounding box. If `xMin' is negative, */ /* the glyph extends to the left of the origin. */ /* */ typedef struct FT_BBox_ { FT_Pos xMin, yMin; FT_Pos xMax, yMax; } FT_BBox; /*************************************************************************/ /* */ /* <Enum> */ /* FT_Pixel_Mode */ /* */ /* <Description> */ /* An enumeration type used to describe the format of pixels in a */ /* given bitmap. Note that additional formats may be added in the */ /* future. */ /* */ /* <Values> */ /* FT_PIXEL_MODE_NONE :: */ /* Value~0 is reserved. */ /* */ /* FT_PIXEL_MODE_MONO :: */ /* A monochrome bitmap, using 1~bit per pixel. Note that pixels */ /* are stored in most-significant order (MSB), which means that */ /* the left-most pixel in a byte has value 128. */ /* */ /* FT_PIXEL_MODE_GRAY :: */ /* An 8-bit bitmap, generally used to represent anti-aliased glyph */ /* images. Each pixel is stored in one byte. Note that the number */ /* of `gray' levels is stored in the `num_grays' field of the */ /* @FT_Bitmap structure (it generally is 256). */ /* */ /* FT_PIXEL_MODE_GRAY2 :: */ /* A 2-bit per pixel bitmap, used to represent embedded */ /* anti-aliased bitmaps in font files according to the OpenType */ /* specification. We haven't found a single font using this */ /* format, however. */ /* */ /* FT_PIXEL_MODE_GRAY4 :: */ /* A 4-bit per pixel bitmap, representing embedded anti-aliased */ /* bitmaps in font files according to the OpenType specification. */ /* We haven't found a single font using this format, however. */ /* */ /* FT_PIXEL_MODE_LCD :: */ /* An 8-bit bitmap, representing RGB or BGR decimated glyph images */ /* used for display on LCD displays; the bitmap is three times */ /* wider than the original glyph image. See also */ /* @FT_RENDER_MODE_LCD. */ /* */ /* FT_PIXEL_MODE_LCD_V :: */ /* An 8-bit bitmap, representing RGB or BGR decimated glyph images */ /* used for display on rotated LCD displays; the bitmap is three */ /* times taller than the original glyph image. See also */ /* @FT_RENDER_MODE_LCD_V. */ /* */ typedef enum FT_Pixel_Mode_ { FT_PIXEL_MODE_NONE = 0, FT_PIXEL_MODE_MONO, FT_PIXEL_MODE_GRAY, FT_PIXEL_MODE_GRAY2, FT_PIXEL_MODE_GRAY4, FT_PIXEL_MODE_LCD, FT_PIXEL_MODE_LCD_V, FT_PIXEL_MODE_MAX /* do not remove */ } FT_Pixel_Mode; /*************************************************************************/ /* */ /* <Enum> */ /* ft_pixel_mode_xxx */ /* */ /* <Description> */ /* A list of deprecated constants. Use the corresponding */ /* @FT_Pixel_Mode values instead. */ /* */ /* <Values> */ /* ft_pixel_mode_none :: See @FT_PIXEL_MODE_NONE. */ /* ft_pixel_mode_mono :: See @FT_PIXEL_MODE_MONO. */ /* ft_pixel_mode_grays :: See @FT_PIXEL_MODE_GRAY. */ /* ft_pixel_mode_pal2 :: See @FT_PIXEL_MODE_GRAY2. */ /* ft_pixel_mode_pal4 :: See @FT_PIXEL_MODE_GRAY4. */ /* */ #define ft_pixel_mode_none FT_PIXEL_MODE_NONE #define ft_pixel_mode_mono FT_PIXEL_MODE_MONO #define ft_pixel_mode_grays FT_PIXEL_MODE_GRAY #define ft_pixel_mode_pal2 FT_PIXEL_MODE_GRAY2 #define ft_pixel_mode_pal4 FT_PIXEL_MODE_GRAY4 /* */ #if 0 /*************************************************************************/ /* */ /* <Enum> */ /* FT_Palette_Mode */ /* */ /* <Description> */ /* THIS TYPE IS DEPRECATED. DO NOT USE IT! */ /* */ /* An enumeration type to describe the format of a bitmap palette, */ /* used with ft_pixel_mode_pal4 and ft_pixel_mode_pal8. */ /* */ /* <Values> */ /* ft_palette_mode_rgb :: The palette is an array of 3-byte RGB */ /* records. */ /* */ /* ft_palette_mode_rgba :: The palette is an array of 4-byte RGBA */ /* records. */ /* */ /* <Note> */ /* As ft_pixel_mode_pal2, pal4 and pal8 are currently unused by */ /* FreeType, these types are not handled by the library itself. */ /* */ typedef enum FT_Palette_Mode_ { ft_palette_mode_rgb = 0, ft_palette_mode_rgba, ft_palette_mode_max /* do not remove */ } FT_Palette_Mode; /* */ #endif /*************************************************************************/ /* */ /* <Struct> */ /* FT_Bitmap */ /* */ /* <Description> */ /* A structure used to describe a bitmap or pixmap to the raster. */ /* Note that we now manage pixmaps of various depths through the */ /* `pixel_mode' field. */ /* */ /* <Fields> */ /* rows :: The number of bitmap rows. */ /* */ /* width :: The number of pixels in bitmap row. */ /* */ /* pitch :: The pitch's absolute value is the number of bytes */ /* taken by one bitmap row, including padding. */ /* However, the pitch is positive when the bitmap has */ /* a `down' flow, and negative when it has an `up' */ /* flow. In all cases, the pitch is an offset to add */ /* to a bitmap pointer in order to go down one row. */ /* */ /* Note that `padding' means the alignment of a */ /* bitmap to a byte border, and FreeType functions */ /* normally align to the smallest possible integer */ /* value. */ /* */ /* For the B/W rasterizer, `pitch' is always an even */ /* number. */ /* */ /* To change the pitch of a bitmap (say, to make it a */ /* multiple of 4), use @FT_Bitmap_Convert. */ /* Alternatively, you might use callback functions to */ /* directly render to the application's surface; see */ /* the file `example2.cpp' in the tutorial for a */ /* demonstration. */ /* */ /* buffer :: A typeless pointer to the bitmap buffer. This */ /* value should be aligned on 32-bit boundaries in */ /* most cases. */ /* */ /* num_grays :: This field is only used with */ /* @FT_PIXEL_MODE_GRAY; it gives the number of gray */ /* levels used in the bitmap. */ /* */ /* pixel_mode :: The pixel mode, i.e., how pixel bits are stored. */ /* See @FT_Pixel_Mode for possible values. */ /* */ /* palette_mode :: This field is intended for paletted pixel modes; */ /* it indicates how the palette is stored. Not */ /* used currently. */ /* */ /* palette :: A typeless pointer to the bitmap palette; this */ /* field is intended for paletted pixel modes. Not */ /* used currently. */ /* */ /* <Note> */ /* For now, the only pixel modes supported by FreeType are mono and */ /* grays. However, drivers might be added in the future to support */ /* more `colorful' options. */ /* */ typedef struct FT_Bitmap_ { int rows; int width; int pitch; unsigned char* buffer; short num_grays; char pixel_mode; char palette_mode; void* palette; } FT_Bitmap; /*************************************************************************/ /* */ /* <Section> */ /* outline_processing */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* <Struct> */ /* FT_Outline */ /* */ /* <Description> */ /* This structure is used to describe an outline to the scan-line */ /* converter. */ /* */ /* <Fields> */ /* n_contours :: The number of contours in the outline. */ /* */ /* n_points :: The number of points in the outline. */ /* */ /* points :: A pointer to an array of `n_points' @FT_Vector */ /* elements, giving the outline's point coordinates. */ /* */ /* tags :: A pointer to an array of `n_points' chars, giving */ /* each outline point's type. */ /* */ /* If bit~0 is unset, the point is `off' the curve, */ /* i.e., a Bézier control point, while it is `on' if */ /* set. */ /* */ /* Bit~1 is meaningful for `off' points only. If set, */ /* it indicates a third-order Bézier arc control point; */ /* and a second-order control point if unset. */ /* */ /* If bit~2 is set, bits 5-7 contain the drop-out mode */ /* (as defined in the OpenType specification; the value */ /* is the same as the argument to the SCANMODE */ /* instruction). */ /* */ /* Bits 3 and~4 are reserved for internal purposes. */ /* */ /* contours :: An array of `n_contours' shorts, giving the end */ /* point of each contour within the outline. For */ /* example, the first contour is defined by the points */ /* `0' to `contours[0]', the second one is defined by */ /* the points `contours[0]+1' to `contours[1]', etc. */ /* */ /* flags :: A set of bit flags used to characterize the outline */ /* and give hints to the scan-converter and hinter on */ /* how to convert/grid-fit it. See @FT_OUTLINE_FLAGS. */ /* */ /* <Note> */ /* The B/W rasterizer only checks bit~2 in the `tags' array for the */ /* first point of each contour. The drop-out mode as given with */ /* @FT_OUTLINE_IGNORE_DROPOUTS, @FT_OUTLINE_SMART_DROPOUTS, and */ /* @FT_OUTLINE_INCLUDE_STUBS in `flags' is then overridden. */ /* */ typedef struct FT_Outline_ { short n_contours; /* number of contours in glyph */ short n_points; /* number of points in the glyph */ FT_Vector* points; /* the outline's points */ char* tags; /* the points flags */ short* contours; /* the contour end points */ int flags; /* outline masks */ } FT_Outline; /* Following limits must be consistent with */ /* FT_Outline.{n_contours,n_points} */ #define FT_OUTLINE_CONTOURS_MAX SHRT_MAX #define FT_OUTLINE_POINTS_MAX SHRT_MAX /*************************************************************************/ /* */ /* <Enum> */ /* FT_OUTLINE_FLAGS */ /* */ /* <Description> */ /* A list of bit-field constants use for the flags in an outline's */ /* `flags' field. */ /* */ /* <Values> */ /* FT_OUTLINE_NONE :: */ /* Value~0 is reserved. */ /* */ /* FT_OUTLINE_OWNER :: */ /* If set, this flag indicates that the outline's field arrays */ /* (i.e., `points', `flags', and `contours') are `owned' by the */ /* outline object, and should thus be freed when it is destroyed. */ /* */ /* FT_OUTLINE_EVEN_ODD_FILL :: */ /* By default, outlines are filled using the non-zero winding rule. */ /* If set to 1, the outline will be filled using the even-odd fill */ /* rule (only works with the smooth rasterizer). */ /* */ /* FT_OUTLINE_REVERSE_FILL :: */ /* By default, outside contours of an outline are oriented in */ /* clock-wise direction, as defined in the TrueType specification. */ /* This flag is set if the outline uses the opposite direction */ /* (typically for Type~1 fonts). This flag is ignored by the scan */ /* converter. */ /* */ /* FT_OUTLINE_IGNORE_DROPOUTS :: */ /* By default, the scan converter will try to detect drop-outs in */ /* an outline and correct the glyph bitmap to ensure consistent */ /* shape continuity. If set, this flag hints the scan-line */ /* converter to ignore such cases. See below for more information. */ /* */ /* FT_OUTLINE_SMART_DROPOUTS :: */ /* Select smart dropout control. If unset, use simple dropout */ /* control. Ignored if @FT_OUTLINE_IGNORE_DROPOUTS is set. See */ /* below for more information. */ /* */ /* FT_OUTLINE_INCLUDE_STUBS :: */ /* If set, turn pixels on for `stubs', otherwise exclude them. */ /* Ignored if @FT_OUTLINE_IGNORE_DROPOUTS is set. See below for */ /* more information. */ /* */ /* FT_OUTLINE_HIGH_PRECISION :: */ /* This flag indicates that the scan-line converter should try to */ /* convert this outline to bitmaps with the highest possible */ /* quality. It is typically set for small character sizes. Note */ /* that this is only a hint that might be completely ignored by a */ /* given scan-converter. */ /* */ /* FT_OUTLINE_SINGLE_PASS :: */ /* This flag is set to force a given scan-converter to only use a */ /* single pass over the outline to render a bitmap glyph image. */ /* Normally, it is set for very large character sizes. It is only */ /* a hint that might be completely ignored by a given */ /* scan-converter. */ /* */ /* <Note> */ /* The flags @FT_OUTLINE_IGNORE_DROPOUTS, @FT_OUTLINE_SMART_DROPOUTS, */ /* and @FT_OUTLINE_INCLUDE_STUBS are ignored by the smooth */ /* rasterizer. */ /* */ /* There exists a second mechanism to pass the drop-out mode to the */ /* B/W rasterizer; see the `tags' field in @FT_Outline. */ /* */ /* Please refer to the description of the `SCANTYPE' instruction in */ /* the OpenType specification (in file `ttinst1.doc') how simple */ /* drop-outs, smart drop-outs, and stubs are defined. */ /* */ #define FT_OUTLINE_NONE 0x0 #define FT_OUTLINE_OWNER 0x1 #define FT_OUTLINE_EVEN_ODD_FILL 0x2 #define FT_OUTLINE_REVERSE_FILL 0x4 #define FT_OUTLINE_IGNORE_DROPOUTS 0x8 #define FT_OUTLINE_SMART_DROPOUTS 0x10 #define FT_OUTLINE_INCLUDE_STUBS 0x20 #define FT_OUTLINE_HIGH_PRECISION 0x100 #define FT_OUTLINE_SINGLE_PASS 0x200 /************************************************************************* * * @enum: * ft_outline_flags * * @description: * These constants are deprecated. Please use the corresponding * @FT_OUTLINE_FLAGS values. * * @values: * ft_outline_none :: See @FT_OUTLINE_NONE. * ft_outline_owner :: See @FT_OUTLINE_OWNER. * ft_outline_even_odd_fill :: See @FT_OUTLINE_EVEN_ODD_FILL. * ft_outline_reverse_fill :: See @FT_OUTLINE_REVERSE_FILL. * ft_outline_ignore_dropouts :: See @FT_OUTLINE_IGNORE_DROPOUTS. * ft_outline_high_precision :: See @FT_OUTLINE_HIGH_PRECISION. * ft_outline_single_pass :: See @FT_OUTLINE_SINGLE_PASS. */ #define ft_outline_none FT_OUTLINE_NONE #define ft_outline_owner FT_OUTLINE_OWNER #define ft_outline_even_odd_fill FT_OUTLINE_EVEN_ODD_FILL #define ft_outline_reverse_fill FT_OUTLINE_REVERSE_FILL #define ft_outline_ignore_dropouts FT_OUTLINE_IGNORE_DROPOUTS #define ft_outline_high_precision FT_OUTLINE_HIGH_PRECISION #define ft_outline_single_pass FT_OUTLINE_SINGLE_PASS /* */ #define FT_CURVE_TAG( flag ) ( flag & 3 ) #define FT_CURVE_TAG_ON 1 #define FT_CURVE_TAG_CONIC 0 #define FT_CURVE_TAG_CUBIC 2 #define FT_CURVE_TAG_HAS_SCANMODE 4 #define FT_CURVE_TAG_TOUCH_X 8 /* reserved for the TrueType hinter */ #define FT_CURVE_TAG_TOUCH_Y 16 /* reserved for the TrueType hinter */ #define FT_CURVE_TAG_TOUCH_BOTH ( FT_CURVE_TAG_TOUCH_X | \ FT_CURVE_TAG_TOUCH_Y ) #define FT_Curve_Tag_On FT_CURVE_TAG_ON #define FT_Curve_Tag_Conic FT_CURVE_TAG_CONIC #define FT_Curve_Tag_Cubic FT_CURVE_TAG_CUBIC #define FT_Curve_Tag_Touch_X FT_CURVE_TAG_TOUCH_X #define FT_Curve_Tag_Touch_Y FT_CURVE_TAG_TOUCH_Y /*************************************************************************/ /* */ /* <FuncType> */ /* FT_Outline_MoveToFunc */ /* */ /* <Description> */ /* A function pointer type used to describe the signature of a `move */ /* to' function during outline walking/decomposition. */ /* */ /* A `move to' is emitted to start a new contour in an outline. */ /* */ /* <Input> */ /* to :: A pointer to the target point of the `move to'. */ /* */ /* user :: A typeless pointer which is passed from the caller of the */ /* decomposition function. */ /* */ /* <Return> */ /* Error code. 0~means success. */ /* */ typedef int (*FT_Outline_MoveToFunc)( const FT_Vector* to, void* user ); #define FT_Outline_MoveTo_Func FT_Outline_MoveToFunc /*************************************************************************/ /* */ /* <FuncType> */ /* FT_Outline_LineToFunc */ /* */ /* <Description> */ /* A function pointer type used to describe the signature of a `line */ /* to' function during outline walking/decomposition. */ /* */ /* A `line to' is emitted to indicate a segment in the outline. */ /* */ /* <Input> */ /* to :: A pointer to the target point of the `line to'. */ /* */ /* user :: A typeless pointer which is passed from the caller of the */ /* decomposition function. */ /* */ /* <Return> */ /* Error code. 0~means success. */ /* */ typedef int (*FT_Outline_LineToFunc)( const FT_Vector* to, void* user ); #define FT_Outline_LineTo_Func FT_Outline_LineToFunc /*************************************************************************/ /* */ /* <FuncType> */ /* FT_Outline_ConicToFunc */ /* */ /* <Description> */ /* A function pointer type used to describe the signature of a `conic */ /* to' function during outline walking or decomposition. */ /* */ /* A `conic to' is emitted to indicate a second-order Bézier arc in */ /* the outline. */ /* */ /* <Input> */ /* control :: An intermediate control point between the last position */ /* and the new target in `to'. */ /* */ /* to :: A pointer to the target end point of the conic arc. */ /* */ /* user :: A typeless pointer which is passed from the caller of */ /* the decomposition function. */ /* */ /* <Return> */ /* Error code. 0~means success. */ /* */ typedef int (*FT_Outline_ConicToFunc)( const FT_Vector* control, const FT_Vector* to, void* user ); #define FT_Outline_ConicTo_Func FT_Outline_ConicToFunc /*************************************************************************/ /* */ /* <FuncType> */ /* FT_Outline_CubicToFunc */ /* */ /* <Description> */ /* A function pointer type used to describe the signature of a `cubic */ /* to' function during outline walking or decomposition. */ /* */ /* A `cubic to' is emitted to indicate a third-order Bézier arc. */ /* */ /* <Input> */ /* control1 :: A pointer to the first Bézier control point. */ /* */ /* control2 :: A pointer to the second Bézier control point. */ /* */ /* to :: A pointer to the target end point. */ /* */ /* user :: A typeless pointer which is passed from the caller of */ /* the decomposition function. */ /* */ /* <Return> */ /* Error code. 0~means success. */ /* */ typedef int (*FT_Outline_CubicToFunc)( const FT_Vector* control1, const FT_Vector* control2, const FT_Vector* to, void* user ); #define FT_Outline_CubicTo_Func FT_Outline_CubicToFunc /*************************************************************************/ /* */ /* <Struct> */ /* FT_Outline_Funcs */ /* */ /* <Description> */ /* A structure to hold various function pointers used during outline */ /* decomposition in order to emit segments, conic, and cubic Béziers. */ /* */ /* <Fields> */ /* move_to :: The `move to' emitter. */ /* */ /* line_to :: The segment emitter. */ /* */ /* conic_to :: The second-order Bézier arc emitter. */ /* */ /* cubic_to :: The third-order Bézier arc emitter. */ /* */ /* shift :: The shift that is applied to coordinates before they */ /* are sent to the emitter. */ /* */ /* delta :: The delta that is applied to coordinates before they */ /* are sent to the emitter, but after the shift. */ /* */ /* <Note> */ /* The point coordinates sent to the emitters are the transformed */ /* version of the original coordinates (this is important for high */ /* accuracy during scan-conversion). The transformation is simple: */ /* */ /* { */ /* x' = (x << shift) - delta */ /* y' = (x << shift) - delta */ /* } */ /* */ /* Set the values of `shift' and `delta' to~0 to get the original */ /* point coordinates. */ /* */ typedef struct FT_Outline_Funcs_ { FT_Outline_MoveToFunc move_to; FT_Outline_LineToFunc line_to; FT_Outline_ConicToFunc conic_to; FT_Outline_CubicToFunc cubic_to; int shift; FT_Pos delta; } FT_Outline_Funcs; /*************************************************************************/ /* */ /* <Section> */ /* basic_types */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* <Macro> */ /* FT_IMAGE_TAG */ /* */ /* <Description> */ /* This macro converts four-letter tags to an unsigned long type. */ /* */ /* <Note> */ /* Since many 16-bit compilers don't like 32-bit enumerations, you */ /* should redefine this macro in case of problems to something like */ /* this: */ /* */ /* { */ /* #define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) value */ /* } */ /* */ /* to get a simple enumeration without assigning special numbers. */ /* */ #ifndef FT_IMAGE_TAG #define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) \ value = ( ( (unsigned long)_x1 << 24 ) | \ ( (unsigned long)_x2 << 16 ) | \ ( (unsigned long)_x3 << 8 ) | \ (unsigned long)_x4 ) #endif /* FT_IMAGE_TAG */ /*************************************************************************/ /* */ /* <Enum> */ /* FT_Glyph_Format */ /* */ /* <Description> */ /* An enumeration type used to describe the format of a given glyph */ /* image. Note that this version of FreeType only supports two image */ /* formats, even though future font drivers will be able to register */ /* their own format. */ /* */ /* <Values> */ /* FT_GLYPH_FORMAT_NONE :: */ /* The value~0 is reserved. */ /* */ /* FT_GLYPH_FORMAT_COMPOSITE :: */ /* The glyph image is a composite of several other images. This */ /* format is _only_ used with @FT_LOAD_NO_RECURSE, and is used to */ /* report compound glyphs (like accented characters). */ /* */ /* FT_GLYPH_FORMAT_BITMAP :: */ /* The glyph image is a bitmap, and can be described as an */ /* @FT_Bitmap. You generally need to access the `bitmap' field of */ /* the @FT_GlyphSlotRec structure to read it. */ /* */ /* FT_GLYPH_FORMAT_OUTLINE :: */ /* The glyph image is a vectorial outline made of line segments */ /* and Bézier arcs; it can be described as an @FT_Outline; you */ /* generally want to access the `outline' field of the */ /* @FT_GlyphSlotRec structure to read it. */ /* */ /* FT_GLYPH_FORMAT_PLOTTER :: */ /* The glyph image is a vectorial path with no inside and outside */ /* contours. Some Type~1 fonts, like those in the Hershey family, */ /* contain glyphs in this format. These are described as */ /* @FT_Outline, but FreeType isn't currently capable of rendering */ /* them correctly. */ /* */ typedef enum FT_Glyph_Format_ { FT_IMAGE_TAG( FT_GLYPH_FORMAT_NONE, 0, 0, 0, 0 ), FT_IMAGE_TAG( FT_GLYPH_FORMAT_COMPOSITE, 'c', 'o', 'm', 'p' ), FT_IMAGE_TAG( FT_GLYPH_FORMAT_BITMAP, 'b', 'i', 't', 's' ), FT_IMAGE_TAG( FT_GLYPH_FORMAT_OUTLINE, 'o', 'u', 't', 'l' ), FT_IMAGE_TAG( FT_GLYPH_FORMAT_PLOTTER, 'p', 'l', 'o', 't' ) } FT_Glyph_Format; /*************************************************************************/ /* */ /* <Enum> */ /* ft_glyph_format_xxx */ /* */ /* <Description> */ /* A list of deprecated constants. Use the corresponding */ /* @FT_Glyph_Format values instead. */ /* */ /* <Values> */ /* ft_glyph_format_none :: See @FT_GLYPH_FORMAT_NONE. */ /* ft_glyph_format_composite :: See @FT_GLYPH_FORMAT_COMPOSITE. */ /* ft_glyph_format_bitmap :: See @FT_GLYPH_FORMAT_BITMAP. */ /* ft_glyph_format_outline :: See @FT_GLYPH_FORMAT_OUTLINE. */ /* ft_glyph_format_plotter :: See @FT_GLYPH_FORMAT_PLOTTER. */ /* */ #define ft_glyph_format_none FT_GLYPH_FORMAT_NONE #define ft_glyph_format_composite FT_GLYPH_FORMAT_COMPOSITE #define ft_glyph_format_bitmap FT_GLYPH_FORMAT_BITMAP #define ft_glyph_format_outline FT_GLYPH_FORMAT_OUTLINE #define ft_glyph_format_plotter FT_GLYPH_FORMAT_PLOTTER /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /***** *****/ /***** R A S T E R D E F I N I T I O N S *****/ /***** *****/ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /* */ /* A raster is a scan converter, in charge of rendering an outline into */ /* a a bitmap. This section contains the public API for rasters. */ /* */ /* Note that in FreeType 2, all rasters are now encapsulated within */ /* specific modules called `renderers'. See `freetype/ftrender.h' for */ /* more details on renderers. */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* <Section> */ /* raster */ /* */ /* <Title> */ /* Scanline Converter */ /* */ /* <Abstract> */ /* How vectorial outlines are converted into bitmaps and pixmaps. */ /* */ /* <Description> */ /* This section contains technical definitions. */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* <Type> */ /* FT_Raster */ /* */ /* <Description> */ /* A handle (pointer) to a raster object. Each object can be used */ /* independently to convert an outline into a bitmap or pixmap. */ /* */ typedef struct FT_RasterRec_* FT_Raster; /*************************************************************************/ /* */ /* <Struct> */ /* FT_Span */ /* */ /* <Description> */ /* A structure used to model a single span of gray (or black) pixels */ /* when rendering a monochrome or anti-aliased bitmap. */ /* */ /* <Fields> */ /* x :: The span's horizontal start position. */ /* */ /* len :: The span's length in pixels. */ /* */ /* coverage :: The span color/coverage, ranging from 0 (background) */ /* to 255 (foreground). Only used for anti-aliased */ /* rendering. */ /* */ /* <Note> */ /* This structure is used by the span drawing callback type named */ /* @FT_SpanFunc which takes the y~coordinate of the span as a */ /* a parameter. */ /* */ /* The coverage value is always between 0 and 255. If you want less */ /* gray values, the callback function has to reduce them. */ /* */ typedef struct FT_Span_ { short x; unsigned short len; unsigned char coverage; } FT_Span; /*************************************************************************/ /* */ /* <FuncType> */ /* FT_SpanFunc */ /* */ /* <Description> */ /* A function used as a call-back by the anti-aliased renderer in */ /* order to let client applications draw themselves the gray pixel */ /* spans on each scan line. */ /* */ /* <Input> */ /* y :: The scanline's y~coordinate. */ /* */ /* count :: The number of spans to draw on this scanline. */ /* */ /* spans :: A table of `count' spans to draw on the scanline. */ /* */ /* user :: User-supplied data that is passed to the callback. */ /* */ /* <Note> */ /* This callback allows client applications to directly render the */ /* gray spans of the anti-aliased bitmap to any kind of surfaces. */ /* */ /* This can be used to write anti-aliased outlines directly to a */ /* given background bitmap, and even perform translucency. */ /* */ /* Note that the `count' field cannot be greater than a fixed value */ /* defined by the `FT_MAX_GRAY_SPANS' configuration macro in */ /* `ftoption.h'. By default, this value is set to~32, which means */ /* that if there are more than 32~spans on a given scanline, the */ /* callback is called several times with the same `y' parameter in */ /* order to draw all callbacks. */ /* */ /* Otherwise, the callback is only called once per scan-line, and */ /* only for those scanlines that do have `gray' pixels on them. */ /* */ typedef void (*FT_SpanFunc)( int y, int count, const FT_Span* spans, void* user ); #define FT_Raster_Span_Func FT_SpanFunc /*************************************************************************/ /* */ /* <FuncType> */ /* FT_Raster_BitTest_Func */ /* */ /* <Description> */ /* THIS TYPE IS DEPRECATED. DO NOT USE IT. */ /* */ /* A function used as a call-back by the monochrome scan-converter */ /* to test whether a given target pixel is already set to the drawing */ /* `color'. These tests are crucial to implement drop-out control */ /* per-se the TrueType spec. */ /* */ /* <Input> */ /* y :: The pixel's y~coordinate. */ /* */ /* x :: The pixel's x~coordinate. */ /* */ /* user :: User-supplied data that is passed to the callback. */ /* */ /* <Return> */ /* 1~if the pixel is `set', 0~otherwise. */ /* */ typedef int (*FT_Raster_BitTest_Func)( int y, int x, void* user ); /*************************************************************************/ /* */ /* <FuncType> */ /* FT_Raster_BitSet_Func */ /* */ /* <Description> */ /* THIS TYPE IS DEPRECATED. DO NOT USE IT. */ /* */ /* A function used as a call-back by the monochrome scan-converter */ /* to set an individual target pixel. This is crucial to implement */ /* drop-out control according to the TrueType specification. */ /* */ /* <Input> */ /* y :: The pixel's y~coordinate. */ /* */ /* x :: The pixel's x~coordinate. */ /* */ /* user :: User-supplied data that is passed to the callback. */ /* */ /* <Return> */ /* 1~if the pixel is `set', 0~otherwise. */ /* */ typedef void (*FT_Raster_BitSet_Func)( int y, int x, void* user ); /*************************************************************************/ /* */ /* <Enum> */ /* FT_RASTER_FLAG_XXX */ /* */ /* <Description> */ /* A list of bit flag constants as used in the `flags' field of a */ /* @FT_Raster_Params structure. */ /* */ /* <Values> */ /* FT_RASTER_FLAG_DEFAULT :: This value is 0. */ /* */ /* FT_RASTER_FLAG_AA :: This flag is set to indicate that an */ /* anti-aliased glyph image should be */ /* generated. Otherwise, it will be */ /* monochrome (1-bit). */ /* */ /* FT_RASTER_FLAG_DIRECT :: This flag is set to indicate direct */ /* rendering. In this mode, client */ /* applications must provide their own span */ /* callback. This lets them directly */ /* draw or compose over an existing bitmap. */ /* If this bit is not set, the target */ /* pixmap's buffer _must_ be zeroed before */ /* rendering. */ /* */ /* Note that for now, direct rendering is */ /* only possible with anti-aliased glyphs. */ /* */ /* FT_RASTER_FLAG_CLIP :: This flag is only used in direct */ /* rendering mode. If set, the output will */ /* be clipped to a box specified in the */ /* `clip_box' field of the */ /* @FT_Raster_Params structure. */ /* */ /* Note that by default, the glyph bitmap */ /* is clipped to the target pixmap, except */ /* in direct rendering mode where all spans */ /* are generated if no clipping box is set. */ /* */ #define FT_RASTER_FLAG_DEFAULT 0x0 #define FT_RASTER_FLAG_AA 0x1 #define FT_RASTER_FLAG_DIRECT 0x2 #define FT_RASTER_FLAG_CLIP 0x4 /* deprecated */ #define ft_raster_flag_default FT_RASTER_FLAG_DEFAULT #define ft_raster_flag_aa FT_RASTER_FLAG_AA #define ft_raster_flag_direct FT_RASTER_FLAG_DIRECT #define ft_raster_flag_clip FT_RASTER_FLAG_CLIP /*************************************************************************/ /* */ /* <Struct> */ /* FT_Raster_Params */ /* */ /* <Description> */ /* A structure to hold the arguments used by a raster's render */ /* function. */ /* */ /* <Fields> */ /* target :: The target bitmap. */ /* */ /* source :: A pointer to the source glyph image (e.g., an */ /* @FT_Outline). */ /* */ /* flags :: The rendering flags. */ /* */ /* gray_spans :: The gray span drawing callback. */ /* */ /* black_spans :: The black span drawing callback. UNIMPLEMENTED! */ /* */ /* bit_test :: The bit test callback. UNIMPLEMENTED! */ /* */ /* bit_set :: The bit set callback. UNIMPLEMENTED! */ /* */ /* user :: User-supplied data that is passed to each drawing */ /* callback. */ /* */ /* clip_box :: An optional clipping box. It is only used in */ /* direct rendering mode. Note that coordinates here */ /* should be expressed in _integer_ pixels (and not in */ /* 26.6 fixed-point units). */ /* */ /* <Note> */ /* An anti-aliased glyph bitmap is drawn if the @FT_RASTER_FLAG_AA */ /* bit flag is set in the `flags' field, otherwise a monochrome */ /* bitmap is generated. */ /* */ /* If the @FT_RASTER_FLAG_DIRECT bit flag is set in `flags', the */ /* raster will call the `gray_spans' callback to draw gray pixel */ /* spans, in the case of an aa glyph bitmap, it will call */ /* `black_spans', and `bit_test' and `bit_set' in the case of a */ /* monochrome bitmap. This allows direct composition over a */ /* pre-existing bitmap through user-provided callbacks to perform the */ /* span drawing/composition. */ /* */ /* Note that the `bit_test' and `bit_set' callbacks are required when */ /* rendering a monochrome bitmap, as they are crucial to implement */ /* correct drop-out control as defined in the TrueType specification. */ /* */ typedef struct FT_Raster_Params_ { const FT_Bitmap* target; const void* source; int flags; FT_SpanFunc gray_spans; FT_SpanFunc black_spans; /* doesn't work! */ FT_Raster_BitTest_Func bit_test; /* doesn't work! */ FT_Raster_BitSet_Func bit_set; /* doesn't work! */ void* user; FT_BBox clip_box; } FT_Raster_Params; /*************************************************************************/ /* */ /* <FuncType> */ /* FT_Raster_NewFunc */ /* */ /* <Description> */ /* A function used to create a new raster object. */ /* */ /* <Input> */ /* memory :: A handle to the memory allocator. */ /* */ /* <Output> */ /* raster :: A handle to the new raster object. */ /* */ /* <Return> */ /* Error code. 0~means success. */ /* */ /* <Note> */ /* The `memory' parameter is a typeless pointer in order to avoid */ /* un-wanted dependencies on the rest of the FreeType code. In */ /* practice, it is an @FT_Memory object, i.e., a handle to the */ /* standard FreeType memory allocator. However, this field can be */ /* completely ignored by a given raster implementation. */ /* */ typedef int (*FT_Raster_NewFunc)( void* memory, FT_Raster* raster ); #define FT_Raster_New_Func FT_Raster_NewFunc /*************************************************************************/ /* */ /* <FuncType> */ /* FT_Raster_DoneFunc */ /* */ /* <Description> */ /* A function used to destroy a given raster object. */ /* */ /* <Input> */ /* raster :: A handle to the raster object. */ /* */ typedef void (*FT_Raster_DoneFunc)( FT_Raster raster ); #define FT_Raster_Done_Func FT_Raster_DoneFunc /*************************************************************************/ /* */ /* <FuncType> */ /* FT_Raster_ResetFunc */ /* */ /* <Description> */ /* FreeType provides an area of memory called the `render pool', */ /* available to all registered rasters. This pool can be freely used */ /* during a given scan-conversion but is shared by all rasters. Its */ /* content is thus transient. */ /* */ /* This function is called each time the render pool changes, or just */ /* after a new raster object is created. */ /* */ /* <Input> */ /* raster :: A handle to the new raster object. */ /* */ /* pool_base :: The address in memory of the render pool. */ /* */ /* pool_size :: The size in bytes of the render pool. */ /* */ /* <Note> */ /* Rasters can ignore the render pool and rely on dynamic memory */ /* allocation if they want to (a handle to the memory allocator is */ /* passed to the raster constructor). However, this is not */ /* recommended for efficiency purposes. */ /* */ typedef void (*FT_Raster_ResetFunc)( FT_Raster raster, unsigned char* pool_base, unsigned long pool_size ); #define FT_Raster_Reset_Func FT_Raster_ResetFunc /*************************************************************************/ /* */ /* <FuncType> */ /* FT_Raster_SetModeFunc */ /* */ /* <Description> */ /* This function is a generic facility to change modes or attributes */ /* in a given raster. This can be used for debugging purposes, or */ /* simply to allow implementation-specific `features' in a given */ /* raster module. */ /* */ /* <Input> */ /* raster :: A handle to the new raster object. */ /* */ /* mode :: A 4-byte tag used to name the mode or property. */ /* */ /* args :: A pointer to the new mode/property to use. */ /* */ typedef int (*FT_Raster_SetModeFunc)( FT_Raster raster, unsigned long mode, void* args ); #define FT_Raster_Set_Mode_Func FT_Raster_SetModeFunc /*************************************************************************/ /* */ /* <FuncType> */ /* FT_Raster_RenderFunc */ /* */ /* <Description> */ /* Invoke a given raster to scan-convert a given glyph image into a */ /* target bitmap. */ /* */ /* <Input> */ /* raster :: A handle to the raster object. */ /* */ /* params :: A pointer to an @FT_Raster_Params structure used to */ /* store the rendering parameters. */ /* */ /* <Return> */ /* Error code. 0~means success. */ /* */ /* <Note> */ /* The exact format of the source image depends on the raster's glyph */ /* format defined in its @FT_Raster_Funcs structure. It can be an */ /* @FT_Outline or anything else in order to support a large array of */ /* glyph formats. */ /* */ /* Note also that the render function can fail and return a */ /* `FT_Err_Unimplemented_Feature' error code if the raster used does */ /* not support direct composition. */ /* */ /* XXX: For now, the standard raster doesn't support direct */ /* composition but this should change for the final release (see */ /* the files `demos/src/ftgrays.c' and `demos/src/ftgrays2.c' */ /* for examples of distinct implementations which support direct */ /* composition). */ /* */ typedef int (*FT_Raster_RenderFunc)( FT_Raster raster, const FT_Raster_Params* params ); #define FT_Raster_Render_Func FT_Raster_RenderFunc /*************************************************************************/ /* */ /* <Struct> */ /* FT_Raster_Funcs */ /* */ /* <Description> */ /* A structure used to describe a given raster class to the library. */ /* */ /* <Fields> */ /* glyph_format :: The supported glyph format for this raster. */ /* */ /* raster_new :: The raster constructor. */ /* */ /* raster_reset :: Used to reset the render pool within the raster. */ /* */ /* raster_render :: A function to render a glyph into a given bitmap. */ /* */ /* raster_done :: The raster destructor. */ /* */ typedef struct FT_Raster_Funcs_ { FT_Glyph_Format glyph_format; FT_Raster_NewFunc raster_new; FT_Raster_ResetFunc raster_reset; FT_Raster_SetModeFunc raster_set_mode; FT_Raster_RenderFunc raster_render; FT_Raster_DoneFunc raster_done; } FT_Raster_Funcs; /* */ FT_END_HEADER #endif /* __FTIMAGE_H__ */ /* END */ /* Local Variables: */ /* coding: utf-8 */ /* End: */ /*** End of inlined file: ftimage.h ***/ #include <stddef.h> FT_BEGIN_HEADER /*************************************************************************/ /* */ /* <Section> */ /* basic_types */ /* */ /* <Title> */ /* Basic Data Types */ /* */ /* <Abstract> */ /* The basic data types defined by the library. */ /* */ /* <Description> */ /* This section contains the basic data types defined by FreeType~2, */ /* ranging from simple scalar types to bitmap descriptors. More */ /* font-specific structures are defined in a different section. */ /* */ /* <Order> */ /* FT_Byte */ /* FT_Bytes */ /* FT_Char */ /* FT_Int */ /* FT_UInt */ /* FT_Int16 */ /* FT_UInt16 */ /* FT_Int32 */ /* FT_UInt32 */ /* FT_Short */ /* FT_UShort */ /* FT_Long */ /* FT_ULong */ /* FT_Bool */ /* FT_Offset */ /* FT_PtrDist */ /* FT_String */ /* FT_Tag */ /* FT_Error */ /* FT_Fixed */ /* FT_Pointer */ /* FT_Pos */ /* FT_Vector */ /* FT_BBox */ /* FT_Matrix */ /* FT_FWord */ /* FT_UFWord */ /* FT_F2Dot14 */ /* FT_UnitVector */ /* FT_F26Dot6 */ /* */ /* */ /* FT_Generic */ /* FT_Generic_Finalizer */ /* */ /* FT_Bitmap */ /* FT_Pixel_Mode */ /* FT_Palette_Mode */ /* FT_Glyph_Format */ /* FT_IMAGE_TAG */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* <Type> */ /* FT_Bool */ /* */ /* <Description> */ /* A typedef of unsigned char, used for simple booleans. As usual, */ /* values 1 and~0 represent true and false, respectively. */ /* */ typedef unsigned char FT_Bool; /*************************************************************************/ /* */ /* <Type> */ /* FT_FWord */ /* */ /* <Description> */ /* A signed 16-bit integer used to store a distance in original font */ /* units. */ /* */ typedef signed short FT_FWord; /* distance in FUnits */ /*************************************************************************/ /* */ /* <Type> */ /* FT_UFWord */ /* */ /* <Description> */ /* An unsigned 16-bit integer used to store a distance in original */ /* font units. */ /* */ typedef unsigned short FT_UFWord; /* unsigned distance */ /*************************************************************************/ /* */ /* <Type> */ /* FT_Char */ /* */ /* <Description> */ /* A simple typedef for the _signed_ char type. */ /* */ typedef signed char FT_Char; /*************************************************************************/ /* */ /* <Type> */ /* FT_Byte */ /* */ /* <Description> */ /* A simple typedef for the _unsigned_ char type. */ /* */ typedef unsigned char FT_Byte; /*************************************************************************/ /* */ /* <Type> */ /* FT_Bytes */ /* */ /* <Description> */ /* A typedef for constant memory areas. */ /* */ typedef const FT_Byte* FT_Bytes; /*************************************************************************/ /* */ /* <Type> */ /* FT_Tag */ /* */ /* <Description> */ /* A typedef for 32-bit tags (as used in the SFNT format). */ /* */ typedef FT_UInt32 FT_Tag; /*************************************************************************/ /* */ /* <Type> */ /* FT_String */ /* */ /* <Description> */ /* A simple typedef for the char type, usually used for strings. */ /* */ typedef char FT_String; /*************************************************************************/ /* */ /* <Type> */ /* FT_Short */ /* */ /* <Description> */ /* A typedef for signed short. */ /* */ typedef signed short FT_Short; /*************************************************************************/ /* */ /* <Type> */ /* FT_UShort */ /* */ /* <Description> */ /* A typedef for unsigned short. */ /* */ typedef unsigned short FT_UShort; /*************************************************************************/ /* */ /* <Type> */ /* FT_Int */ /* */ /* <Description> */ /* A typedef for the int type. */ /* */ typedef signed int FT_Int; /*************************************************************************/ /* */ /* <Type> */ /* FT_UInt */ /* */ /* <Description> */ /* A typedef for the unsigned int type. */ /* */ typedef unsigned int FT_UInt; /*************************************************************************/ /* */ /* <Type> */ /* FT_Long */ /* */ /* <Description> */ /* A typedef for signed long. */ /* */ typedef signed long FT_Long; /*************************************************************************/ /* */ /* <Type> */ /* FT_ULong */ /* */ /* <Description> */ /* A typedef for unsigned long. */ /* */ typedef unsigned long FT_ULong; /*************************************************************************/ /* */ /* <Type> */ /* FT_F2Dot14 */ /* */ /* <Description> */ /* A signed 2.14 fixed float type used for unit vectors. */ /* */ typedef signed short FT_F2Dot14; /*************************************************************************/ /* */ /* <Type> */ /* FT_F26Dot6 */ /* */ /* <Description> */ /* A signed 26.6 fixed float type used for vectorial pixel */ /* coordinates. */ /* */ typedef signed long FT_F26Dot6; /*************************************************************************/ /* */ /* <Type> */ /* FT_Fixed */ /* */ /* <Description> */ /* This type is used to store 16.16 fixed float values, like scaling */ /* values or matrix coefficients. */ /* */ typedef signed long FT_Fixed; /*************************************************************************/ /* */ /* <Type> */ /* FT_Error */ /* */ /* <Description> */ /* The FreeType error code type. A value of~0 is always interpreted */ /* as a successful operation. */ /* */ typedef int FT_Error; /*************************************************************************/ /* */ /* <Type> */ /* FT_Pointer */ /* */ /* <Description> */ /* A simple typedef for a typeless pointer. */ /* */ typedef void* FT_Pointer; /*************************************************************************/ /* */ /* <Type> */ /* FT_Offset */ /* */ /* <Description> */ /* This is equivalent to the ANSI~C `size_t' type, i.e., the largest */ /* _unsigned_ integer type used to express a file size or position, */ /* or a memory block size. */ /* */ typedef size_t FT_Offset; /*************************************************************************/ /* */ /* <Type> */ /* FT_PtrDist */ /* */ /* <Description> */ /* This is equivalent to the ANSI~C `ptrdiff_t' type, i.e., the */ /* largest _signed_ integer type used to express the distance */ /* between two pointers. */ /* */ typedef ft_ptrdiff_t FT_PtrDist; /*************************************************************************/ /* */ /* <Struct> */ /* FT_UnitVector */ /* */ /* <Description> */ /* A simple structure used to store a 2D vector unit vector. Uses */ /* FT_F2Dot14 types. */ /* */ /* <Fields> */ /* x :: Horizontal coordinate. */ /* */ /* y :: Vertical coordinate. */ /* */ typedef struct FT_UnitVector_ { FT_F2Dot14 x; FT_F2Dot14 y; } FT_UnitVector; /*************************************************************************/ /* */ /* <Struct> */ /* FT_Matrix */ /* */ /* <Description> */ /* A simple structure used to store a 2x2 matrix. Coefficients are */ /* in 16.16 fixed float format. The computation performed is: */ /* */ /* { */ /* x' = x*xx + y*xy */ /* y' = x*yx + y*yy */ /* } */ /* */ /* <Fields> */ /* xx :: Matrix coefficient. */ /* */ /* xy :: Matrix coefficient. */ /* */ /* yx :: Matrix coefficient. */ /* */ /* yy :: Matrix coefficient. */ /* */ typedef struct FT_Matrix_ { FT_Fixed xx, xy; FT_Fixed yx, yy; } FT_Matrix; /*************************************************************************/ /* */ /* <Struct> */ /* FT_Data */ /* */ /* <Description> */ /* Read-only binary data represented as a pointer and a length. */ /* */ /* <Fields> */ /* pointer :: The data. */ /* */ /* length :: The length of the data in bytes. */ /* */ typedef struct FT_Data_ { const FT_Byte* pointer; FT_Int length; } FT_Data; /*************************************************************************/ /* */ /* <FuncType> */ /* FT_Generic_Finalizer */ /* */ /* <Description> */ /* Describe a function used to destroy the `client' data of any */ /* FreeType object. See the description of the @FT_Generic type for */ /* details of usage. */ /* */ /* <Input> */ /* The address of the FreeType object which is under finalization. */ /* Its client data is accessed through its `generic' field. */ /* */ typedef void (*FT_Generic_Finalizer)(void* object); /*************************************************************************/ /* */ /* <Struct> */ /* FT_Generic */ /* */ /* <Description> */ /* Client applications often need to associate their own data to a */ /* variety of FreeType core objects. For example, a text layout API */ /* might want to associate a glyph cache to a given size object. */ /* */ /* Some FreeType object contains a `generic' field, of type */ /* FT_Generic, which usage is left to client applications and font */ /* servers. */ /* */ /* It can be used to store a pointer to client-specific data, as well */ /* as the address of a `finalizer' function, which will be called by */ /* FreeType when the object is destroyed (for example, the previous */ /* client example would put the address of the glyph cache destructor */ /* in the `finalizer' field). */ /* */ /* <Fields> */ /* data :: A typeless pointer to any client-specified data. This */ /* field is completely ignored by the FreeType library. */ /* */ /* finalizer :: A pointer to a `generic finalizer' function, which */ /* will be called when the object is destroyed. If this */ /* field is set to NULL, no code will be called. */ /* */ typedef struct FT_Generic_ { void* data; FT_Generic_Finalizer finalizer; } FT_Generic; /*************************************************************************/ /* */ /* <Macro> */ /* FT_MAKE_TAG */ /* */ /* <Description> */ /* This macro converts four-letter tags which are used to label */ /* TrueType tables into an unsigned long to be used within FreeType. */ /* */ /* <Note> */ /* The produced values *must* be 32-bit integers. Don't redefine */ /* this macro. */ /* */ #define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \ (FT_Tag) \ ( ( (FT_ULong)_x1 << 24 ) | \ ( (FT_ULong)_x2 << 16 ) | \ ( (FT_ULong)_x3 << 8 ) | \ (FT_ULong)_x4 ) /*************************************************************************/ /*************************************************************************/ /* */ /* L I S T M A N A G E M E N T */ /* */ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /* */ /* <Section> */ /* list_processing */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* <Type> */ /* FT_ListNode */ /* */ /* <Description> */ /* Many elements and objects in FreeType are listed through an */ /* @FT_List record (see @FT_ListRec). As its name suggests, an */ /* FT_ListNode is a handle to a single list element. */ /* */ typedef struct FT_ListNodeRec_* FT_ListNode; /*************************************************************************/ /* */ /* <Type> */ /* FT_List */ /* */ /* <Description> */ /* A handle to a list record (see @FT_ListRec). */ /* */ typedef struct FT_ListRec_* FT_List; /*************************************************************************/ /* */ /* <Struct> */ /* FT_ListNodeRec */ /* */ /* <Description> */ /* A structure used to hold a single list element. */ /* */ /* <Fields> */ /* prev :: The previous element in the list. NULL if first. */ /* */ /* next :: The next element in the list. NULL if last. */ /* */ /* data :: A typeless pointer to the listed object. */ /* */ typedef struct FT_ListNodeRec_ { FT_ListNode prev; FT_ListNode next; void* data; } FT_ListNodeRec; /*************************************************************************/ /* */ /* <Struct> */ /* FT_ListRec */ /* */ /* <Description> */ /* A structure used to hold a simple doubly-linked list. These are */ /* used in many parts of FreeType. */ /* */ /* <Fields> */ /* head :: The head (first element) of doubly-linked list. */ /* */ /* tail :: The tail (last element) of doubly-linked list. */ /* */ typedef struct FT_ListRec_ { FT_ListNode head; FT_ListNode tail; } FT_ListRec; /* */ #define FT_IS_EMPTY( list ) ( (list).head == 0 ) /* return base error code (without module-specific prefix) */ #define FT_ERROR_BASE( x ) ( (x) & 0xFF ) /* return module error code */ #define FT_ERROR_MODULE( x ) ( (x) & 0xFF00U ) #define FT_BOOL( x ) ( (FT_Bool)( x ) ) FT_END_HEADER #endif /* __FTTYPES_H__ */ /* END */ /*** End of inlined file: fttypes.h ***/ FT_BEGIN_HEADER /*************************************************************************/ /* */ /* <Section> */ /* user_allocation */ /* */ /* <Title> */ /* User allocation */ /* */ /* <Abstract> */ /* How client applications should allocate FreeType data structures. */ /* */ /* <Description> */ /* FreeType assumes that structures allocated by the user and passed */ /* as arguments are zeroed out except for the actual data. In other */ /* words, it is recommended to use `calloc' (or variants of it) */ /* instead of `malloc' for allocation. */ /* */ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /* */ /* B A S I C T Y P E S */ /* */ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /* */ /* <Section> */ /* base_interface */ /* */ /* <Title> */ /* Base Interface */ /* */ /* <Abstract> */ /* The FreeType~2 base font interface. */ /* */ /* <Description> */ /* This section describes the public high-level API of FreeType~2. */ /* */ /* <Order> */ /* FT_Library */ /* FT_Face */ /* FT_Size */ /* FT_GlyphSlot */ /* FT_CharMap */ /* FT_Encoding */ /* */ /* FT_FaceRec */ /* */ /* FT_FACE_FLAG_SCALABLE */ /* FT_FACE_FLAG_FIXED_SIZES */ /* FT_FACE_FLAG_FIXED_WIDTH */ /* FT_FACE_FLAG_HORIZONTAL */ /* FT_FACE_FLAG_VERTICAL */ /* FT_FACE_FLAG_SFNT */ /* FT_FACE_FLAG_KERNING */ /* FT_FACE_FLAG_MULTIPLE_MASTERS */ /* FT_FACE_FLAG_GLYPH_NAMES */ /* FT_FACE_FLAG_EXTERNAL_STREAM */ /* FT_FACE_FLAG_FAST_GLYPHS */ /* FT_FACE_FLAG_HINTER */ /* */ /* FT_STYLE_FLAG_BOLD */ /* FT_STYLE_FLAG_ITALIC */ /* */ /* FT_SizeRec */ /* FT_Size_Metrics */ /* */ /* FT_GlyphSlotRec */ /* FT_Glyph_Metrics */ /* FT_SubGlyph */ /* */ /* FT_Bitmap_Size */ /* */ /* FT_Init_FreeType */ /* FT_Done_FreeType */ /* */ /* FT_New_Face */ /* FT_Done_Face */ /* FT_New_Memory_Face */ /* FT_Open_Face */ /* FT_Open_Args */ /* FT_Parameter */ /* FT_Attach_File */ /* FT_Attach_Stream */ /* */ /* FT_Set_Char_Size */ /* FT_Set_Pixel_Sizes */ /* FT_Request_Size */ /* FT_Select_Size */ /* FT_Size_Request_Type */ /* FT_Size_Request */ /* FT_Set_Transform */ /* FT_Load_Glyph */ /* FT_Get_Char_Index */ /* FT_Get_Name_Index */ /* FT_Load_Char */ /* */ /* FT_OPEN_MEMORY */ /* FT_OPEN_STREAM */ /* FT_OPEN_PATHNAME */ /* FT_OPEN_DRIVER */ /* FT_OPEN_PARAMS */ /* */ /* FT_LOAD_DEFAULT */ /* FT_LOAD_RENDER */ /* FT_LOAD_MONOCHROME */ /* FT_LOAD_LINEAR_DESIGN */ /* FT_LOAD_NO_SCALE */ /* FT_LOAD_NO_HINTING */ /* FT_LOAD_NO_BITMAP */ /* FT_LOAD_CROP_BITMAP */ /* */ /* FT_LOAD_VERTICAL_LAYOUT */ /* FT_LOAD_IGNORE_TRANSFORM */ /* FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH */ /* FT_LOAD_FORCE_AUTOHINT */ /* FT_LOAD_NO_RECURSE */ /* FT_LOAD_PEDANTIC */ /* */ /* FT_LOAD_TARGET_NORMAL */ /* FT_LOAD_TARGET_LIGHT */ /* FT_LOAD_TARGET_MONO */ /* FT_LOAD_TARGET_LCD */ /* FT_LOAD_TARGET_LCD_V */ /* */ /* FT_Render_Glyph */ /* FT_Render_Mode */ /* FT_Get_Kerning */ /* FT_Kerning_Mode */ /* FT_Get_Track_Kerning */ /* FT_Get_Glyph_Name */ /* FT_Get_Postscript_Name */ /* */ /* FT_CharMapRec */ /* FT_Select_Charmap */ /* FT_Set_Charmap */ /* FT_Get_Charmap_Index */ /* */ /* FT_FSTYPE_INSTALLABLE_EMBEDDING */ /* FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING */ /* FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING */ /* FT_FSTYPE_EDITABLE_EMBEDDING */ /* FT_FSTYPE_NO_SUBSETTING */ /* FT_FSTYPE_BITMAP_EMBEDDING_ONLY */ /* */ /* FT_Get_FSType_Flags */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* <Struct> */ /* FT_Glyph_Metrics */ /* */ /* <Description> */ /* A structure used to model the metrics of a single glyph. The */ /* values are expressed in 26.6 fractional pixel format; if the flag */ /* @FT_LOAD_NO_SCALE has been used while loading the glyph, values */ /* are expressed in font units instead. */ /* */ /* <Fields> */ /* width :: */ /* The glyph's width. */ /* */ /* height :: */ /* The glyph's height. */ /* */ /* horiBearingX :: */ /* Left side bearing for horizontal layout. */ /* */ /* horiBearingY :: */ /* Top side bearing for horizontal layout. */ /* */ /* horiAdvance :: */ /* Advance width for horizontal layout. */ /* */ /* vertBearingX :: */ /* Left side bearing for vertical layout. */ /* */ /* vertBearingY :: */ /* Top side bearing for vertical layout. Larger positive values */ /* mean further below the vertical glyph origin. */ /* */ /* vertAdvance :: */ /* Advance height for vertical layout. Positive values mean the */ /* glyph has a positive advance downward. */ /* */ /* <Note> */ /* If not disabled with @FT_LOAD_NO_HINTING, the values represent */ /* dimensions of the hinted glyph (in case hinting is applicable). */ /* */ typedef struct FT_Glyph_Metrics_ { FT_Pos width; FT_Pos height; FT_Pos horiBearingX; FT_Pos horiBearingY; FT_Pos horiAdvance; FT_Pos vertBearingX; FT_Pos vertBearingY; FT_Pos vertAdvance; } FT_Glyph_Metrics; /*************************************************************************/ /* */ /* <Struct> */ /* FT_Bitmap_Size */ /* */ /* <Description> */ /* This structure models the metrics of a bitmap strike (i.e., a set */ /* of glyphs for a given point size and resolution) in a bitmap font. */ /* It is used for the `available_sizes' field of @FT_Face. */ /* */ /* <Fields> */ /* height :: The vertical distance, in pixels, between two */ /* consecutive baselines. It is always positive. */ /* */ /* width :: The average width, in pixels, of all glyphs in the */ /* strike. */ /* */ /* size :: The nominal size of the strike in 26.6 fractional */ /* points. This field is not very useful. */ /* */ /* x_ppem :: The horizontal ppem (nominal width) in 26.6 fractional */ /* pixels. */ /* */ /* y_ppem :: The vertical ppem (nominal height) in 26.6 fractional */ /* pixels. */ /* */ /* <Note> */ /* Windows FNT: */ /* The nominal size given in a FNT font is not reliable. Thus when */ /* the driver finds it incorrect, it sets `size' to some calculated */ /* values and sets `x_ppem' and `y_ppem' to the pixel width and */ /* height given in the font, respectively. */ /* */ /* TrueType embedded bitmaps: */ /* `size', `width', and `height' values are not contained in the */ /* bitmap strike itself. They are computed from the global font */ /* parameters. */ /* */ typedef struct FT_Bitmap_Size_ { FT_Short height; FT_Short width; FT_Pos size; FT_Pos x_ppem; FT_Pos y_ppem; } FT_Bitmap_Size; /*************************************************************************/ /*************************************************************************/ /* */ /* O B J E C T C L A S S E S */ /* */ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /* */ /* <Type> */ /* FT_Library */ /* */ /* <Description> */ /* A handle to a FreeType library instance. Each `library' is */ /* completely independent from the others; it is the `root' of a set */ /* of objects like fonts, faces, sizes, etc. */ /* */ /* It also embeds a memory manager (see @FT_Memory), as well as a */ /* scan-line converter object (see @FT_Raster). */ /* */ /* For multi-threading applications each thread should have its own */ /* FT_Library object. */ /* */ /* <Note> */ /* Library objects are normally created by @FT_Init_FreeType, and */ /* destroyed with @FT_Done_FreeType. */ /* */ typedef struct FT_LibraryRec_ *FT_Library; /*************************************************************************/ /* */ /* <Type> */ /* FT_Module */ /* */ /* <Description> */ /* A handle to a given FreeType module object. Each module can be a */ /* font driver, a renderer, or anything else that provides services */ /* to the formers. */ /* */ typedef struct FT_ModuleRec_* FT_Module; /*************************************************************************/ /* */ /* <Type> */ /* FT_Driver */ /* */ /* <Description> */ /* A handle to a given FreeType font driver object. Each font driver */ /* is a special module capable of creating faces from font files. */ /* */ typedef struct FT_DriverRec_* FT_Driver; /*************************************************************************/ /* */ /* <Type> */ /* FT_Renderer */ /* */ /* <Description> */ /* A handle to a given FreeType renderer. A renderer is a special */ /* module in charge of converting a glyph image to a bitmap, when */ /* necessary. Each renderer supports a given glyph image format, and */ /* one or more target surface depths. */ /* */ typedef struct FT_RendererRec_* FT_Renderer; /*************************************************************************/ /* */ /* <Type> */ /* FT_Face */ /* */ /* <Description> */ /* A handle to a given typographic face object. A face object models */ /* a given typeface, in a given style. */ /* */ /* <Note> */ /* Each face object also owns a single @FT_GlyphSlot object, as well */ /* as one or more @FT_Size objects. */ /* */ /* Use @FT_New_Face or @FT_Open_Face to create a new face object from */ /* a given filepathname or a custom input stream. */ /* */ /* Use @FT_Done_Face to destroy it (along with its slot and sizes). */ /* */ /* <Also> */ /* See @FT_FaceRec for the publicly accessible fields of a given face */ /* object. */ /* */ typedef struct FT_FaceRec_* FT_Face; /*************************************************************************/ /* */ /* <Type> */ /* FT_Size */ /* */ /* <Description> */ /* A handle to an object used to model a face scaled to a given */ /* character size. */ /* */ /* <Note> */ /* Each @FT_Face has an _active_ @FT_Size object that is used by */ /* functions like @FT_Load_Glyph to determine the scaling */ /* transformation which is used to load and hint glyphs and metrics. */ /* */ /* You can use @FT_Set_Char_Size, @FT_Set_Pixel_Sizes, */ /* @FT_Request_Size or even @FT_Select_Size to change the content */ /* (i.e., the scaling values) of the active @FT_Size. */ /* */ /* You can use @FT_New_Size to create additional size objects for a */ /* given @FT_Face, but they won't be used by other functions until */ /* you activate it through @FT_Activate_Size. Only one size can be */ /* activated at any given time per face. */ /* */ /* <Also> */ /* See @FT_SizeRec for the publicly accessible fields of a given size */ /* object. */ /* */ typedef struct FT_SizeRec_* FT_Size; /*************************************************************************/ /* */ /* <Type> */ /* FT_GlyphSlot */ /* */ /* <Description> */ /* A handle to a given `glyph slot'. A slot is a container where it */ /* is possible to load any of the glyphs contained in its parent */ /* face. */ /* */ /* In other words, each time you call @FT_Load_Glyph or */ /* @FT_Load_Char, the slot's content is erased by the new glyph data, */ /* i.e., the glyph's metrics, its image (bitmap or outline), and */ /* other control information. */ /* */ /* <Also> */ /* See @FT_GlyphSlotRec for the publicly accessible glyph fields. */ /* */ typedef struct FT_GlyphSlotRec_* FT_GlyphSlot; /*************************************************************************/ /* */ /* <Type> */ /* FT_CharMap */ /* */ /* <Description> */ /* A handle to a given character map. A charmap is used to translate */ /* character codes in a given encoding into glyph indexes for its */ /* parent's face. Some font formats may provide several charmaps per */ /* font. */ /* */ /* Each face object owns zero or more charmaps, but only one of them */ /* can be `active' and used by @FT_Get_Char_Index or @FT_Load_Char. */ /* */ /* The list of available charmaps in a face is available through the */ /* `face->num_charmaps' and `face->charmaps' fields of @FT_FaceRec. */ /* */ /* The currently active charmap is available as `face->charmap'. */ /* You should call @FT_Set_Charmap to change it. */ /* */ /* <Note> */ /* When a new face is created (either through @FT_New_Face or */ /* @FT_Open_Face), the library looks for a Unicode charmap within */ /* the list and automatically activates it. */ /* */ /* <Also> */ /* See @FT_CharMapRec for the publicly accessible fields of a given */ /* character map. */ /* */ typedef struct FT_CharMapRec_* FT_CharMap; /*************************************************************************/ /* */ /* <Macro> */ /* FT_ENC_TAG */ /* */ /* <Description> */ /* This macro converts four-letter tags into an unsigned long. It is */ /* used to define `encoding' identifiers (see @FT_Encoding). */ /* */ /* <Note> */ /* Since many 16-bit compilers don't like 32-bit enumerations, you */ /* should redefine this macro in case of problems to something like */ /* this: */ /* */ /* { */ /* #define FT_ENC_TAG( value, a, b, c, d ) value */ /* } */ /* */ /* to get a simple enumeration without assigning special numbers. */ /* */ #ifndef FT_ENC_TAG #define FT_ENC_TAG( value, a, b, c, d ) \ value = ( ( (FT_UInt32)(a) << 24 ) | \ ( (FT_UInt32)(b) << 16 ) | \ ( (FT_UInt32)(c) << 8 ) | \ (FT_UInt32)(d) ) #endif /* FT_ENC_TAG */ /*************************************************************************/ /* */ /* <Enum> */ /* FT_Encoding */ /* */ /* <Description> */ /* An enumeration used to specify character sets supported by */ /* charmaps. Used in the @FT_Select_Charmap API function. */ /* */ /* <Note> */ /* Despite the name, this enumeration lists specific character */ /* repertories (i.e., charsets), and not text encoding methods (e.g., */ /* UTF-8, UTF-16, etc.). */ /* */ /* Other encodings might be defined in the future. */ /* */ /* <Values> */ /* FT_ENCODING_NONE :: */ /* The encoding value~0 is reserved. */ /* */ /* FT_ENCODING_UNICODE :: */ /* Corresponds to the Unicode character set. This value covers */ /* all versions of the Unicode repertoire, including ASCII and */ /* Latin-1. Most fonts include a Unicode charmap, but not all */ /* of them. */ /* */ /* For example, if you want to access Unicode value U+1F028 (and */ /* the font contains it), use value 0x1F028 as the input value for */ /* @FT_Get_Char_Index. */ /* */ /* FT_ENCODING_MS_SYMBOL :: */ /* Corresponds to the Microsoft Symbol encoding, used to encode */ /* mathematical symbols in the 32..255 character code range. For */ /* more information, see `http://www.ceviz.net/symbol.htm'. */ /* */ /* FT_ENCODING_SJIS :: */ /* Corresponds to Japanese SJIS encoding. More info at */ /* at `http://langsupport.japanreference.com/encoding.shtml'. */ /* See note on multi-byte encodings below. */ /* */ /* FT_ENCODING_GB2312 :: */ /* Corresponds to an encoding system for Simplified Chinese as used */ /* used in mainland China. */ /* */ /* FT_ENCODING_BIG5 :: */ /* Corresponds to an encoding system for Traditional Chinese as */ /* used in Taiwan and Hong Kong. */ /* */ /* FT_ENCODING_WANSUNG :: */ /* Corresponds to the Korean encoding system known as Wansung. */ /* For more information see */ /* `http://www.microsoft.com/typography/unicode/949.txt'. */ /* */ /* FT_ENCODING_JOHAB :: */ /* The Korean standard character set (KS~C 5601-1992), which */ /* corresponds to MS Windows code page 1361. This character set */ /* includes all possible Hangeul character combinations. */ /* */ /* FT_ENCODING_ADOBE_LATIN_1 :: */ /* Corresponds to a Latin-1 encoding as defined in a Type~1 */ /* PostScript font. It is limited to 256 character codes. */ /* */ /* FT_ENCODING_ADOBE_STANDARD :: */ /* Corresponds to the Adobe Standard encoding, as found in Type~1, */ /* CFF, and OpenType/CFF fonts. It is limited to 256 character */ /* codes. */ /* */ /* FT_ENCODING_ADOBE_EXPERT :: */ /* Corresponds to the Adobe Expert encoding, as found in Type~1, */ /* CFF, and OpenType/CFF fonts. It is limited to 256 character */ /* codes. */ /* */ /* FT_ENCODING_ADOBE_CUSTOM :: */ /* Corresponds to a custom encoding, as found in Type~1, CFF, and */ /* OpenType/CFF fonts. It is limited to 256 character codes. */ /* */ /* FT_ENCODING_APPLE_ROMAN :: */ /* Corresponds to the 8-bit Apple roman encoding. Many TrueType */ /* and OpenType fonts contain a charmap for this encoding, since */ /* older versions of Mac OS are able to use it. */ /* */ /* FT_ENCODING_OLD_LATIN_2 :: */ /* This value is deprecated and was never used nor reported by */ /* FreeType. Don't use or test for it. */ /* */ /* FT_ENCODING_MS_SJIS :: */ /* Same as FT_ENCODING_SJIS. Deprecated. */ /* */ /* FT_ENCODING_MS_GB2312 :: */ /* Same as FT_ENCODING_GB2312. Deprecated. */ /* */ /* FT_ENCODING_MS_BIG5 :: */ /* Same as FT_ENCODING_BIG5. Deprecated. */ /* */ /* FT_ENCODING_MS_WANSUNG :: */ /* Same as FT_ENCODING_WANSUNG. Deprecated. */ /* */ /* FT_ENCODING_MS_JOHAB :: */ /* Same as FT_ENCODING_JOHAB. Deprecated. */ /* */ /* <Note> */ /* By default, FreeType automatically synthesizes a Unicode charmap */ /* for PostScript fonts, using their glyph names dictionaries. */ /* However, it also reports the encodings defined explicitly in the */ /* font file, for the cases when they are needed, with the Adobe */ /* values as well. */ /* */ /* FT_ENCODING_NONE is set by the BDF and PCF drivers if the charmap */ /* is neither Unicode nor ISO-8859-1 (otherwise it is set to */ /* FT_ENCODING_UNICODE). Use @FT_Get_BDF_Charset_ID to find out */ /* which encoding is really present. If, for example, the */ /* `cs_registry' field is `KOI8' and the `cs_encoding' field is `R', */ /* the font is encoded in KOI8-R. */ /* */ /* FT_ENCODING_NONE is always set (with a single exception) by the */ /* winfonts driver. Use @FT_Get_WinFNT_Header and examine the */ /* `charset' field of the @FT_WinFNT_HeaderRec structure to find out */ /* which encoding is really present. For example, */ /* @FT_WinFNT_ID_CP1251 (204) means Windows code page 1251 (for */ /* Russian). */ /* */ /* FT_ENCODING_NONE is set if `platform_id' is @TT_PLATFORM_MACINTOSH */ /* and `encoding_id' is not @TT_MAC_ID_ROMAN (otherwise it is set to */ /* FT_ENCODING_APPLE_ROMAN). */ /* */ /* If `platform_id' is @TT_PLATFORM_MACINTOSH, use the function */ /* @FT_Get_CMap_Language_ID to query the Mac language ID which may */ /* be needed to be able to distinguish Apple encoding variants. See */ /* */ /* http://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/README.TXT */ /* */ /* to get an idea how to do that. Basically, if the language ID */ /* is~0, don't use it, otherwise subtract 1 from the language ID. */ /* Then examine `encoding_id'. If, for example, `encoding_id' is */ /* @TT_MAC_ID_ROMAN and the language ID (minus~1) is */ /* `TT_MAC_LANGID_GREEK', it is the Greek encoding, not Roman. */ /* @TT_MAC_ID_ARABIC with `TT_MAC_LANGID_FARSI' means the Farsi */ /* variant the Arabic encoding. */ /* */ typedef enum FT_Encoding_ { FT_ENC_TAG( FT_ENCODING_NONE, 0, 0, 0, 0 ), FT_ENC_TAG( FT_ENCODING_MS_SYMBOL, 's', 'y', 'm', 'b' ), FT_ENC_TAG( FT_ENCODING_UNICODE, 'u', 'n', 'i', 'c' ), FT_ENC_TAG( FT_ENCODING_SJIS, 's', 'j', 'i', 's' ), FT_ENC_TAG( FT_ENCODING_GB2312, 'g', 'b', ' ', ' ' ), FT_ENC_TAG( FT_ENCODING_BIG5, 'b', 'i', 'g', '5' ), FT_ENC_TAG( FT_ENCODING_WANSUNG, 'w', 'a', 'n', 's' ), FT_ENC_TAG( FT_ENCODING_JOHAB, 'j', 'o', 'h', 'a' ), /* for backwards compatibility */ FT_ENCODING_MS_SJIS = FT_ENCODING_SJIS, FT_ENCODING_MS_GB2312 = FT_ENCODING_GB2312, FT_ENCODING_MS_BIG5 = FT_ENCODING_BIG5, FT_ENCODING_MS_WANSUNG = FT_ENCODING_WANSUNG, FT_ENCODING_MS_JOHAB = FT_ENCODING_JOHAB, FT_ENC_TAG( FT_ENCODING_ADOBE_STANDARD, 'A', 'D', 'O', 'B' ), FT_ENC_TAG( FT_ENCODING_ADOBE_EXPERT, 'A', 'D', 'B', 'E' ), FT_ENC_TAG( FT_ENCODING_ADOBE_CUSTOM, 'A', 'D', 'B', 'C' ), FT_ENC_TAG( FT_ENCODING_ADOBE_LATIN_1, 'l', 'a', 't', '1' ), FT_ENC_TAG( FT_ENCODING_OLD_LATIN_2, 'l', 'a', 't', '2' ), FT_ENC_TAG( FT_ENCODING_APPLE_ROMAN, 'a', 'r', 'm', 'n' ) } FT_Encoding; /*************************************************************************/ /* */ /* <Enum> */ /* ft_encoding_xxx */ /* */ /* <Description> */ /* These constants are deprecated; use the corresponding @FT_Encoding */ /* values instead. */ /* */ #define ft_encoding_none FT_ENCODING_NONE #define ft_encoding_unicode FT_ENCODING_UNICODE #define ft_encoding_symbol FT_ENCODING_MS_SYMBOL #define ft_encoding_latin_1 FT_ENCODING_ADOBE_LATIN_1 #define ft_encoding_latin_2 FT_ENCODING_OLD_LATIN_2 #define ft_encoding_sjis FT_ENCODING_SJIS #define ft_encoding_gb2312 FT_ENCODING_GB2312 #define ft_encoding_big5 FT_ENCODING_BIG5 #define ft_encoding_wansung FT_ENCODING_WANSUNG #define ft_encoding_johab FT_ENCODING_JOHAB #define ft_encoding_adobe_standard FT_ENCODING_ADOBE_STANDARD #define ft_encoding_adobe_expert FT_ENCODING_ADOBE_EXPERT #define ft_encoding_adobe_custom FT_ENCODING_ADOBE_CUSTOM #define ft_encoding_apple_roman FT_ENCODING_APPLE_ROMAN /*************************************************************************/ /* */ /* <Struct> */ /* FT_CharMapRec */ /* */ /* <Description> */ /* The base charmap structure. */ /* */ /* <Fields> */ /* face :: A handle to the parent face object. */ /* */ /* encoding :: An @FT_Encoding tag identifying the charmap. Use */ /* this with @FT_Select_Charmap. */ /* */ /* platform_id :: An ID number describing the platform for the */ /* following encoding ID. This comes directly from */ /* the TrueType specification and should be emulated */ /* for other formats. */ /* */ /* encoding_id :: A platform specific encoding number. This also */ /* comes from the TrueType specification and should be */ /* emulated similarly. */ /* */ typedef struct FT_CharMapRec_ { FT_Face face; FT_Encoding encoding; FT_UShort platform_id; FT_UShort encoding_id; } FT_CharMapRec; /*************************************************************************/ /*************************************************************************/ /* */ /* B A S E O B J E C T C L A S S E S */ /* */ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /* */ /* <Type> */ /* FT_Face_Internal */ /* */ /* <Description> */ /* An opaque handle to an `FT_Face_InternalRec' structure, used to */ /* model private data of a given @FT_Face object. */ /* */ /* This structure might change between releases of FreeType~2 and is */ /* not generally available to client applications. */ /* */ typedef struct FT_Face_InternalRec_* FT_Face_Internal; /*************************************************************************/ /* */ /* <Struct> */ /* FT_FaceRec */ /* */ /* <Description> */ /* FreeType root face class structure. A face object models a */ /* typeface in a font file. */ /* */ /* <Fields> */ /* num_faces :: The number of faces in the font file. Some */ /* font formats can have multiple faces in */ /* a font file. */ /* */ /* face_index :: The index of the face in the font file. It */ /* is set to~0 if there is only one face in */ /* the font file. */ /* */ /* face_flags :: A set of bit flags that give important */ /* information about the face; see */ /* @FT_FACE_FLAG_XXX for the details. */ /* */ /* style_flags :: A set of bit flags indicating the style of */ /* the face; see @FT_STYLE_FLAG_XXX for the */ /* details. */ /* */ /* num_glyphs :: The number of glyphs in the face. If the */ /* face is scalable and has sbits (see */ /* `num_fixed_sizes'), it is set to the number */ /* of outline glyphs. */ /* */ /* For CID-keyed fonts, this value gives the */ /* highest CID used in the font. */ /* */ /* family_name :: The face's family name. This is an ASCII */ /* string, usually in English, which describes */ /* the typeface's family (like `Times New */ /* Roman', `Bodoni', `Garamond', etc). This */ /* is a least common denominator used to list */ /* fonts. Some formats (TrueType & OpenType) */ /* provide localized and Unicode versions of */ /* this string. Applications should use the */ /* format specific interface to access them. */ /* Can be NULL (e.g., in fonts embedded in a */ /* PDF file). */ /* */ /* style_name :: The face's style name. This is an ASCII */ /* string, usually in English, which describes */ /* the typeface's style (like `Italic', */ /* `Bold', `Condensed', etc). Not all font */ /* formats provide a style name, so this field */ /* is optional, and can be set to NULL. As */ /* for `family_name', some formats provide */ /* localized and Unicode versions of this */ /* string. Applications should use the format */ /* specific interface to access them. */ /* */ /* num_fixed_sizes :: The number of bitmap strikes in the face. */ /* Even if the face is scalable, there might */ /* still be bitmap strikes, which are called */ /* `sbits' in that case. */ /* */ /* available_sizes :: An array of @FT_Bitmap_Size for all bitmap */ /* strikes in the face. It is set to NULL if */ /* there is no bitmap strike. */ /* */ /* num_charmaps :: The number of charmaps in the face. */ /* */ /* charmaps :: An array of the charmaps of the face. */ /* */ /* generic :: A field reserved for client uses. See the */ /* @FT_Generic type description. */ /* */ /* bbox :: The font bounding box. Coordinates are */ /* expressed in font units (see */ /* `units_per_EM'). The box is large enough */ /* to contain any glyph from the font. Thus, */ /* `bbox.yMax' can be seen as the `maximum */ /* ascender', and `bbox.yMin' as the `minimum */ /* descender'. Only relevant for scalable */ /* formats. */ /* */ /* Note that the bounding box might be off by */ /* (at least) one pixel for hinted fonts. See */ /* @FT_Size_Metrics for further discussion. */ /* */ /* units_per_EM :: The number of font units per EM square for */ /* this face. This is typically 2048 for */ /* TrueType fonts, and 1000 for Type~1 fonts. */ /* Only relevant for scalable formats. */ /* */ /* ascender :: The typographic ascender of the face, */ /* expressed in font units. For font formats */ /* not having this information, it is set to */ /* `bbox.yMax'. Only relevant for scalable */ /* formats. */ /* */ /* descender :: The typographic descender of the face, */ /* expressed in font units. For font formats */ /* not having this information, it is set to */ /* `bbox.yMin'. Note that this field is */ /* usually negative. Only relevant for */ /* scalable formats. */ /* */ /* height :: The height is the vertical distance */ /* between two consecutive baselines, */ /* expressed in font units. It is always */ /* positive. Only relevant for scalable */ /* formats. */ /* */ /* max_advance_width :: The maximum advance width, in font units, */ /* for all glyphs in this face. This can be */ /* used to make word wrapping computations */ /* faster. Only relevant for scalable */ /* formats. */ /* */ /* max_advance_height :: The maximum advance height, in font units, */ /* for all glyphs in this face. This is only */ /* relevant for vertical layouts, and is set */ /* to `height' for fonts that do not provide */ /* vertical metrics. Only relevant for */ /* scalable formats. */ /* */ /* underline_position :: The position, in font units, of the */ /* underline line for this face. It is the */ /* center of the underlining stem. Only */ /* relevant for scalable formats. */ /* */ /* underline_thickness :: The thickness, in font units, of the */ /* underline for this face. Only relevant for */ /* scalable formats. */ /* */ /* glyph :: The face's associated glyph slot(s). */ /* */ /* size :: The current active size for this face. */ /* */ /* charmap :: The current active charmap for this face. */ /* */ /* <Note> */ /* Fields may be changed after a call to @FT_Attach_File or */ /* @FT_Attach_Stream. */ /* */ typedef struct FT_FaceRec_ { FT_Long num_faces; FT_Long face_index; FT_Long face_flags; FT_Long style_flags; FT_Long num_glyphs; FT_String* family_name; FT_String* style_name; FT_Int num_fixed_sizes; FT_Bitmap_Size* available_sizes; FT_Int num_charmaps; FT_CharMap* charmaps; FT_Generic generic; /*# The following member variables (down to `underline_thickness') */ /*# are only relevant to scalable outlines; cf. @FT_Bitmap_Size */ /*# for bitmap fonts. */ FT_BBox bbox; FT_UShort units_per_EM; FT_Short ascender; FT_Short descender; FT_Short height; FT_Short max_advance_width; FT_Short max_advance_height; FT_Short underline_position; FT_Short underline_thickness; FT_GlyphSlot glyph; FT_Size size; FT_CharMap charmap; /*@private begin */ FT_Driver driver; FT_Memory memory; FT_Stream stream; FT_ListRec sizes_list; FT_Generic autohint; /* face-specific auto-hinter data */ void* extensions; /* unused */ FT_Face_Internal internal; /*@private end */ } FT_FaceRec; /*************************************************************************/ /* */ /* <Enum> */ /* FT_FACE_FLAG_XXX */ /* */ /* <Description> */ /* A list of bit flags used in the `face_flags' field of the */ /* @FT_FaceRec structure. They inform client applications of */ /* properties of the corresponding face. */ /* */ /* <Values> */ /* FT_FACE_FLAG_SCALABLE :: */ /* Indicates that the face contains outline glyphs. This doesn't */ /* prevent bitmap strikes, i.e., a face can have both this and */ /* and @FT_FACE_FLAG_FIXED_SIZES set. */ /* */ /* FT_FACE_FLAG_FIXED_SIZES :: */ /* Indicates that the face contains bitmap strikes. See also the */ /* `num_fixed_sizes' and `available_sizes' fields of @FT_FaceRec. */ /* */ /* FT_FACE_FLAG_FIXED_WIDTH :: */ /* Indicates that the face contains fixed-width characters (like */ /* Courier, Lucido, MonoType, etc.). */ /* */ /* FT_FACE_FLAG_SFNT :: */ /* Indicates that the face uses the `sfnt' storage scheme. For */ /* now, this means TrueType and OpenType. */ /* */ /* FT_FACE_FLAG_HORIZONTAL :: */ /* Indicates that the face contains horizontal glyph metrics. This */ /* should be set for all common formats. */ /* */ /* FT_FACE_FLAG_VERTICAL :: */ /* Indicates that the face contains vertical glyph metrics. This */ /* is only available in some formats, not all of them. */ /* */ /* FT_FACE_FLAG_KERNING :: */ /* Indicates that the face contains kerning information. If set, */ /* the kerning distance can be retrieved through the function */ /* @FT_Get_Kerning. Otherwise the function always return the */ /* vector (0,0). Note that FreeType doesn't handle kerning data */ /* from the `GPOS' table (as present in some OpenType fonts). */ /* */ /* FT_FACE_FLAG_FAST_GLYPHS :: */ /* THIS FLAG IS DEPRECATED. DO NOT USE OR TEST IT. */ /* */ /* FT_FACE_FLAG_MULTIPLE_MASTERS :: */ /* Indicates that the font contains multiple masters and is capable */ /* of interpolating between them. See the multiple-masters */ /* specific API for details. */ /* */ /* FT_FACE_FLAG_GLYPH_NAMES :: */ /* Indicates that the font contains glyph names that can be */ /* retrieved through @FT_Get_Glyph_Name. Note that some TrueType */ /* fonts contain broken glyph name tables. Use the function */ /* @FT_Has_PS_Glyph_Names when needed. */ /* */ /* FT_FACE_FLAG_EXTERNAL_STREAM :: */ /* Used internally by FreeType to indicate that a face's stream was */ /* provided by the client application and should not be destroyed */ /* when @FT_Done_Face is called. Don't read or test this flag. */ /* */ /* FT_FACE_FLAG_HINTER :: */ /* Set if the font driver has a hinting machine of its own. For */ /* example, with TrueType fonts, it makes sense to use data from */ /* the SFNT `gasp' table only if the native TrueType hinting engine */ /* (with the bytecode interpreter) is available and active. */ /* */ /* FT_FACE_FLAG_CID_KEYED :: */ /* Set if the font is CID-keyed. In that case, the font is not */ /* accessed by glyph indices but by CID values. For subsetted */ /* CID-keyed fonts this has the consequence that not all index */ /* values are a valid argument to FT_Load_Glyph. Only the CID */ /* values for which corresponding glyphs in the subsetted font */ /* exist make FT_Load_Glyph return successfully; in all other cases */ /* you get an `FT_Err_Invalid_Argument' error. */ /* */ /* Note that CID-keyed fonts which are in an SFNT wrapper don't */ /* have this flag set since the glyphs are accessed in the normal */ /* way (using contiguous indices); the `CID-ness' isn't visible to */ /* the application. */ /* */ /* FT_FACE_FLAG_TRICKY :: */ /* Set if the font is `tricky', this is, it always needs the */ /* font format's native hinting engine to get a reasonable result. */ /* A typical example is the Chinese font `mingli.ttf' which uses */ /* TrueType bytecode instructions to move and scale all of its */ /* subglyphs. */ /* */ /* It is not possible to autohint such fonts using */ /* @FT_LOAD_FORCE_AUTOHINT; it will also ignore */ /* @FT_LOAD_NO_HINTING. You have to set both @FT_LOAD_NO_HINTING */ /* and @FT_LOAD_NO_AUTOHINT to really disable hinting; however, you */ /* probably never want this except for demonstration purposes. */ /* */ /* Currently, there are about a dozen TrueType fonts in the list of */ /* tricky fonts; they are hard-coded in file `ttobjs.c'. */ /* */ #define FT_FACE_FLAG_SCALABLE ( 1L << 0 ) #define FT_FACE_FLAG_FIXED_SIZES ( 1L << 1 ) #define FT_FACE_FLAG_FIXED_WIDTH ( 1L << 2 ) #define FT_FACE_FLAG_SFNT ( 1L << 3 ) #define FT_FACE_FLAG_HORIZONTAL ( 1L << 4 ) #define FT_FACE_FLAG_VERTICAL ( 1L << 5 ) #define FT_FACE_FLAG_KERNING ( 1L << 6 ) #define FT_FACE_FLAG_FAST_GLYPHS ( 1L << 7 ) #define FT_FACE_FLAG_MULTIPLE_MASTERS ( 1L << 8 ) #define FT_FACE_FLAG_GLYPH_NAMES ( 1L << 9 ) #define FT_FACE_FLAG_EXTERNAL_STREAM ( 1L << 10 ) #define FT_FACE_FLAG_HINTER ( 1L << 11 ) #define FT_FACE_FLAG_CID_KEYED ( 1L << 12 ) #define FT_FACE_FLAG_TRICKY ( 1L << 13 ) /************************************************************************* * * @macro: * FT_HAS_HORIZONTAL( face ) * * @description: * A macro that returns true whenever a face object contains * horizontal metrics (this is true for all font formats though). * * @also: * @FT_HAS_VERTICAL can be used to check for vertical metrics. * */ #define FT_HAS_HORIZONTAL( face ) \ ( face->face_flags & FT_FACE_FLAG_HORIZONTAL ) /************************************************************************* * * @macro: * FT_HAS_VERTICAL( face ) * * @description: * A macro that returns true whenever a face object contains vertical * metrics. * */ #define FT_HAS_VERTICAL( face ) \ ( face->face_flags & FT_FACE_FLAG_VERTICAL ) /************************************************************************* * * @macro: * FT_HAS_KERNING( face ) * * @description: * A macro that returns true whenever a face object contains kerning * data that can be accessed with @FT_Get_Kerning. * */ #define FT_HAS_KERNING( face ) \ ( face->face_flags & FT_FACE_FLAG_KERNING ) /************************************************************************* * * @macro: * FT_IS_SCALABLE( face ) * * @description: * A macro that returns true whenever a face object contains a scalable * font face (true for TrueType, Type~1, Type~42, CID, OpenType/CFF, * and PFR font formats. * */ #define FT_IS_SCALABLE( face ) \ ( face->face_flags & FT_FACE_FLAG_SCALABLE ) /************************************************************************* * * @macro: * FT_IS_SFNT( face ) * * @description: * A macro that returns true whenever a face object contains a font * whose format is based on the SFNT storage scheme. This usually * means: TrueType fonts, OpenType fonts, as well as SFNT-based embedded * bitmap fonts. * * If this macro is true, all functions defined in @FT_SFNT_NAMES_H and * @FT_TRUETYPE_TABLES_H are available. * */ #define FT_IS_SFNT( face ) \ ( face->face_flags & FT_FACE_FLAG_SFNT ) /************************************************************************* * * @macro: * FT_IS_FIXED_WIDTH( face ) * * @description: * A macro that returns true whenever a face object contains a font face * that contains fixed-width (or `monospace', `fixed-pitch', etc.) * glyphs. * */ #define FT_IS_FIXED_WIDTH( face ) \ ( face->face_flags & FT_FACE_FLAG_FIXED_WIDTH ) /************************************************************************* * * @macro: * FT_HAS_FIXED_SIZES( face ) * * @description: * A macro that returns true whenever a face object contains some * embedded bitmaps. See the `available_sizes' field of the * @FT_FaceRec structure. * */ #define FT_HAS_FIXED_SIZES( face ) \ ( face->face_flags & FT_FACE_FLAG_FIXED_SIZES ) /************************************************************************* * * @macro: * FT_HAS_FAST_GLYPHS( face ) * * @description: * Deprecated. * */ #define FT_HAS_FAST_GLYPHS( face ) 0 /************************************************************************* * * @macro: * FT_HAS_GLYPH_NAMES( face ) * * @description: * A macro that returns true whenever a face object contains some glyph * names that can be accessed through @FT_Get_Glyph_Name. * */ #define FT_HAS_GLYPH_NAMES( face ) \ ( face->face_flags & FT_FACE_FLAG_GLYPH_NAMES ) /************************************************************************* * * @macro: * FT_HAS_MULTIPLE_MASTERS( face ) * * @description: * A macro that returns true whenever a face object contains some * multiple masters. The functions provided by @FT_MULTIPLE_MASTERS_H * are then available to choose the exact design you want. * */ #define FT_HAS_MULTIPLE_MASTERS( face ) \ ( face->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS ) /************************************************************************* * * @macro: * FT_IS_CID_KEYED( face ) * * @description: * A macro that returns true whenever a face object contains a CID-keyed * font. See the discussion of @FT_FACE_FLAG_CID_KEYED for more * details. * * If this macro is true, all functions defined in @FT_CID_H are * available. * */ #define FT_IS_CID_KEYED( face ) \ ( face->face_flags & FT_FACE_FLAG_CID_KEYED ) /************************************************************************* * * @macro: * FT_IS_TRICKY( face ) * * @description: * A macro that returns true whenever a face represents a `tricky' font. * See the discussion of @FT_FACE_FLAG_TRICKY for more details. * */ #define FT_IS_TRICKY( face ) \ ( face->face_flags & FT_FACE_FLAG_TRICKY ) /*************************************************************************/ /* */ /* <Const> */ /* FT_STYLE_FLAG_XXX */ /* */ /* <Description> */ /* A list of bit-flags used to indicate the style of a given face. */ /* These are used in the `style_flags' field of @FT_FaceRec. */ /* */ /* <Values> */ /* FT_STYLE_FLAG_ITALIC :: */ /* Indicates that a given face style is italic or oblique. */ /* */ /* FT_STYLE_FLAG_BOLD :: */ /* Indicates that a given face is bold. */ /* */ /* <Note> */ /* The style information as provided by FreeType is very basic. More */ /* details are beyond the scope and should be done on a higher level */ /* (for example, by analyzing various fields of the `OS/2' table in */ /* SFNT based fonts). */ /* */ #define FT_STYLE_FLAG_ITALIC ( 1 << 0 ) #define FT_STYLE_FLAG_BOLD ( 1 << 1 ) /*************************************************************************/ /* */ /* <Type> */ /* FT_Size_Internal */ /* */ /* <Description> */ /* An opaque handle to an `FT_Size_InternalRec' structure, used to */ /* model private data of a given @FT_Size object. */ /* */ typedef struct FT_Size_InternalRec_* FT_Size_Internal; /*************************************************************************/ /* */ /* <Struct> */ /* FT_Size_Metrics */ /* */ /* <Description> */ /* The size metrics structure gives the metrics of a size object. */ /* */ /* <Fields> */ /* x_ppem :: The width of the scaled EM square in pixels, hence */ /* the term `ppem' (pixels per EM). It is also */ /* referred to as `nominal width'. */ /* */ /* y_ppem :: The height of the scaled EM square in pixels, */ /* hence the term `ppem' (pixels per EM). It is also */ /* referred to as `nominal height'. */ /* */ /* x_scale :: A 16.16 fractional scaling value used to convert */ /* horizontal metrics from font units to 26.6 */ /* fractional pixels. Only relevant for scalable */ /* font formats. */ /* */ /* y_scale :: A 16.16 fractional scaling value used to convert */ /* vertical metrics from font units to 26.6 */ /* fractional pixels. Only relevant for scalable */ /* font formats. */ /* */ /* ascender :: The ascender in 26.6 fractional pixels. See */ /* @FT_FaceRec for the details. */ /* */ /* descender :: The descender in 26.6 fractional pixels. See */ /* @FT_FaceRec for the details. */ /* */ /* height :: The height in 26.6 fractional pixels. See */ /* @FT_FaceRec for the details. */ /* */ /* max_advance :: The maximum advance width in 26.6 fractional */ /* pixels. See @FT_FaceRec for the details. */ /* */ /* <Note> */ /* The scaling values, if relevant, are determined first during a */ /* size changing operation. The remaining fields are then set by the */ /* driver. For scalable formats, they are usually set to scaled */ /* values of the corresponding fields in @FT_FaceRec. */ /* */ /* Note that due to glyph hinting, these values might not be exact */ /* for certain fonts. Thus they must be treated as unreliable */ /* with an error margin of at least one pixel! */ /* */ /* Indeed, the only way to get the exact metrics is to render _all_ */ /* glyphs. As this would be a definite performance hit, it is up to */ /* client applications to perform such computations. */ /* */ /* The FT_Size_Metrics structure is valid for bitmap fonts also. */ /* */ typedef struct FT_Size_Metrics_ { FT_UShort x_ppem; /* horizontal pixels per EM */ FT_UShort y_ppem; /* vertical pixels per EM */ FT_Fixed x_scale; /* scaling values used to convert font */ FT_Fixed y_scale; /* units to 26.6 fractional pixels */ FT_Pos ascender; /* ascender in 26.6 frac. pixels */ FT_Pos descender; /* descender in 26.6 frac. pixels */ FT_Pos height; /* text height in 26.6 frac. pixels */ FT_Pos max_advance; /* max horizontal advance, in 26.6 pixels */ } FT_Size_Metrics; /*************************************************************************/ /* */ /* <Struct> */ /* FT_SizeRec */ /* */ /* <Description> */ /* FreeType root size class structure. A size object models a face */ /* object at a given size. */ /* */ /* <Fields> */ /* face :: Handle to the parent face object. */ /* */ /* generic :: A typeless pointer, which is unused by the FreeType */ /* library or any of its drivers. It can be used by */ /* client applications to link their own data to each size */ /* object. */ /* */ /* metrics :: Metrics for this size object. This field is read-only. */ /* */ typedef struct FT_SizeRec_ { FT_Face face; /* parent face object */ FT_Generic generic; /* generic pointer for client uses */ FT_Size_Metrics metrics; /* size metrics */ FT_Size_Internal internal; } FT_SizeRec; /*************************************************************************/ /* */ /* <Struct> */ /* FT_SubGlyph */ /* */ /* <Description> */ /* The subglyph structure is an internal object used to describe */ /* subglyphs (for example, in the case of composites). */ /* */ /* <Note> */ /* The subglyph implementation is not part of the high-level API, */ /* hence the forward structure declaration. */ /* */ /* You can however retrieve subglyph information with */ /* @FT_Get_SubGlyph_Info. */ /* */ typedef struct FT_SubGlyphRec_* FT_SubGlyph; /*************************************************************************/ /* */ /* <Type> */ /* FT_Slot_Internal */ /* */ /* <Description> */ /* An opaque handle to an `FT_Slot_InternalRec' structure, used to */ /* model private data of a given @FT_GlyphSlot object. */ /* */ typedef struct FT_Slot_InternalRec_* FT_Slot_Internal; /*************************************************************************/ /* */ /* <Struct> */ /* FT_GlyphSlotRec */ /* */ /* <Description> */ /* FreeType root glyph slot class structure. A glyph slot is a */ /* container where individual glyphs can be loaded, be they in */ /* outline or bitmap format. */ /* */ /* <Fields> */ /* library :: A handle to the FreeType library instance */ /* this slot belongs to. */ /* */ /* face :: A handle to the parent face object. */ /* */ /* next :: In some cases (like some font tools), several */ /* glyph slots per face object can be a good */ /* thing. As this is rare, the glyph slots are */ /* listed through a direct, single-linked list */ /* using its `next' field. */ /* */ /* generic :: A typeless pointer which is unused by the */ /* FreeType library or any of its drivers. It */ /* can be used by client applications to link */ /* their own data to each glyph slot object. */ /* */ /* metrics :: The metrics of the last loaded glyph in the */ /* slot. The returned values depend on the last */ /* load flags (see the @FT_Load_Glyph API */ /* function) and can be expressed either in 26.6 */ /* fractional pixels or font units. */ /* */ /* Note that even when the glyph image is */ /* transformed, the metrics are not. */ /* */ /* linearHoriAdvance :: The advance width of the unhinted glyph. */ /* Its value is expressed in 16.16 fractional */ /* pixels, unless @FT_LOAD_LINEAR_DESIGN is set */ /* when loading the glyph. This field can be */ /* important to perform correct WYSIWYG layout. */ /* Only relevant for outline glyphs. */ /* */ /* linearVertAdvance :: The advance height of the unhinted glyph. */ /* Its value is expressed in 16.16 fractional */ /* pixels, unless @FT_LOAD_LINEAR_DESIGN is set */ /* when loading the glyph. This field can be */ /* important to perform correct WYSIWYG layout. */ /* Only relevant for outline glyphs. */ /* */ /* advance :: This shorthand is, depending on */ /* @FT_LOAD_IGNORE_TRANSFORM, the transformed */ /* advance width for the glyph (in 26.6 */ /* fractional pixel format). As specified with */ /* @FT_LOAD_VERTICAL_LAYOUT, it uses either the */ /* `horiAdvance' or the `vertAdvance' value of */ /* `metrics' field. */ /* */ /* format :: This field indicates the format of the image */ /* contained in the glyph slot. Typically */ /* @FT_GLYPH_FORMAT_BITMAP, */ /* @FT_GLYPH_FORMAT_OUTLINE, or */ /* @FT_GLYPH_FORMAT_COMPOSITE, but others are */ /* possible. */ /* */ /* bitmap :: This field is used as a bitmap descriptor */ /* when the slot format is */ /* @FT_GLYPH_FORMAT_BITMAP. Note that the */ /* address and content of the bitmap buffer can */ /* change between calls of @FT_Load_Glyph and a */ /* few other functions. */ /* */ /* bitmap_left :: This is the bitmap's left bearing expressed */ /* in integer pixels. Of course, this is only */ /* valid if the format is */ /* @FT_GLYPH_FORMAT_BITMAP. */ /* */ /* bitmap_top :: This is the bitmap's top bearing expressed in */ /* integer pixels. Remember that this is the */ /* distance from the baseline to the top-most */ /* glyph scanline, upwards y~coordinates being */ /* *positive*. */ /* */ /* outline :: The outline descriptor for the current glyph */ /* image if its format is */ /* @FT_GLYPH_FORMAT_OUTLINE. Once a glyph is */ /* loaded, `outline' can be transformed, */ /* distorted, embolded, etc. However, it must */ /* not be freed. */ /* */ /* num_subglyphs :: The number of subglyphs in a composite glyph. */ /* This field is only valid for the composite */ /* glyph format that should normally only be */ /* loaded with the @FT_LOAD_NO_RECURSE flag. */ /* For now this is internal to FreeType. */ /* */ /* subglyphs :: An array of subglyph descriptors for */ /* composite glyphs. There are `num_subglyphs' */ /* elements in there. Currently internal to */ /* FreeType. */ /* */ /* control_data :: Certain font drivers can also return the */ /* control data for a given glyph image (e.g. */ /* TrueType bytecode, Type~1 charstrings, etc.). */ /* This field is a pointer to such data. */ /* */ /* control_len :: This is the length in bytes of the control */ /* data. */ /* */ /* other :: Really wicked formats can use this pointer to */ /* present their own glyph image to client */ /* applications. Note that the application */ /* needs to know about the image format. */ /* */ /* lsb_delta :: The difference between hinted and unhinted */ /* left side bearing while autohinting is */ /* active. Zero otherwise. */ /* */ /* rsb_delta :: The difference between hinted and unhinted */ /* right side bearing while autohinting is */ /* active. Zero otherwise. */ /* */ /* <Note> */ /* If @FT_Load_Glyph is called with default flags (see */ /* @FT_LOAD_DEFAULT) the glyph image is loaded in the glyph slot in */ /* its native format (e.g., an outline glyph for TrueType and Type~1 */ /* formats). */ /* */ /* This image can later be converted into a bitmap by calling */ /* @FT_Render_Glyph. This function finds the current renderer for */ /* the native image's format, then invokes it. */ /* */ /* The renderer is in charge of transforming the native image through */ /* the slot's face transformation fields, then converting it into a */ /* bitmap that is returned in `slot->bitmap'. */ /* */ /* Note that `slot->bitmap_left' and `slot->bitmap_top' are also used */ /* to specify the position of the bitmap relative to the current pen */ /* position (e.g., coordinates (0,0) on the baseline). Of course, */ /* `slot->format' is also changed to @FT_GLYPH_FORMAT_BITMAP. */ /* */ /* <Note> */ /* Here a small pseudo code fragment which shows how to use */ /* `lsb_delta' and `rsb_delta': */ /* */ /* { */ /* FT_Pos origin_x = 0; */ /* FT_Pos prev_rsb_delta = 0; */ /* */ /* */ /* for all glyphs do */ /* <compute kern between current and previous glyph and add it to */ /* `origin_x'> */ /* */ /* <load glyph with `FT_Load_Glyph'> */ /* */ /* if ( prev_rsb_delta - face->glyph->lsb_delta >= 32 ) */ /* origin_x -= 64; */ /* else if ( prev_rsb_delta - face->glyph->lsb_delta < -32 ) */ /* origin_x += 64; */ /* */ /* prev_rsb_delta = face->glyph->rsb_delta; */ /* */ /* <save glyph image, or render glyph, or ...> */ /* */ /* origin_x += face->glyph->advance.x; */ /* endfor */ /* } */ /* */ typedef struct FT_GlyphSlotRec_ { FT_Library library; FT_Face face; FT_GlyphSlot next; FT_UInt reserved; /* retained for binary compatibility */ FT_Generic generic; FT_Glyph_Metrics metrics; FT_Fixed linearHoriAdvance; FT_Fixed linearVertAdvance; FT_Vector advance; FT_Glyph_Format format; FT_Bitmap bitmap; FT_Int bitmap_left; FT_Int bitmap_top; FT_Outline outline; FT_UInt num_subglyphs; FT_SubGlyph subglyphs; void* control_data; long control_len; FT_Pos lsb_delta; FT_Pos rsb_delta; void* other; FT_Slot_Internal internal; } FT_GlyphSlotRec; /*************************************************************************/ /*************************************************************************/ /* */ /* F U N C T I O N S */ /* */ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /* */ /* <Function> */ /* FT_Init_FreeType */ /* */ /* <Description> */ /* Initialize a new FreeType library object. The set of modules */ /* that are registered by this function is determined at build time. */ /* */ /* <Output> */ /* alibrary :: A handle to a new library object. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* In case you want to provide your own memory allocating routines, */ /* use @FT_New_Library instead, followed by a call to */ /* @FT_Add_Default_Modules (or a series of calls to @FT_Add_Module). */ /* */ /* For multi-threading applications each thread should have its own */ /* FT_Library object. */ /* */ FT_EXPORT( FT_Error ) FT_Init_FreeType( FT_Library *alibrary ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Done_FreeType */ /* */ /* <Description> */ /* Destroy a given FreeType library object and all of its children, */ /* including resources, drivers, faces, sizes, etc. */ /* */ /* <Input> */ /* library :: A handle to the target library object. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ FT_EXPORT( FT_Error ) FT_Done_FreeType( FT_Library library ); /*************************************************************************/ /* */ /* <Enum> */ /* FT_OPEN_XXX */ /* */ /* <Description> */ /* A list of bit-field constants used within the `flags' field of the */ /* @FT_Open_Args structure. */ /* */ /* <Values> */ /* FT_OPEN_MEMORY :: This is a memory-based stream. */ /* */ /* FT_OPEN_STREAM :: Copy the stream from the `stream' field. */ /* */ /* FT_OPEN_PATHNAME :: Create a new input stream from a C~path */ /* name. */ /* */ /* FT_OPEN_DRIVER :: Use the `driver' field. */ /* */ /* FT_OPEN_PARAMS :: Use the `num_params' and `params' fields. */ /* */ /* ft_open_memory :: Deprecated; use @FT_OPEN_MEMORY instead. */ /* */ /* ft_open_stream :: Deprecated; use @FT_OPEN_STREAM instead. */ /* */ /* ft_open_pathname :: Deprecated; use @FT_OPEN_PATHNAME instead. */ /* */ /* ft_open_driver :: Deprecated; use @FT_OPEN_DRIVER instead. */ /* */ /* ft_open_params :: Deprecated; use @FT_OPEN_PARAMS instead. */ /* */ /* <Note> */ /* The `FT_OPEN_MEMORY', `FT_OPEN_STREAM', and `FT_OPEN_PATHNAME' */ /* flags are mutually exclusive. */ /* */ #define FT_OPEN_MEMORY 0x1 #define FT_OPEN_STREAM 0x2 #define FT_OPEN_PATHNAME 0x4 #define FT_OPEN_DRIVER 0x8 #define FT_OPEN_PARAMS 0x10 #define ft_open_memory FT_OPEN_MEMORY /* deprecated */ #define ft_open_stream FT_OPEN_STREAM /* deprecated */ #define ft_open_pathname FT_OPEN_PATHNAME /* deprecated */ #define ft_open_driver FT_OPEN_DRIVER /* deprecated */ #define ft_open_params FT_OPEN_PARAMS /* deprecated */ /*************************************************************************/ /* */ /* <Struct> */ /* FT_Parameter */ /* */ /* <Description> */ /* A simple structure used to pass more or less generic parameters to */ /* @FT_Open_Face. */ /* */ /* <Fields> */ /* tag :: A four-byte identification tag. */ /* */ /* data :: A pointer to the parameter data. */ /* */ /* <Note> */ /* The ID and function of parameters are driver-specific. See the */ /* various FT_PARAM_TAG_XXX flags for more information. */ /* */ typedef struct FT_Parameter_ { FT_ULong tag; FT_Pointer data; } FT_Parameter; /*************************************************************************/ /* */ /* <Struct> */ /* FT_Open_Args */ /* */ /* <Description> */ /* A structure used to indicate how to open a new font file or */ /* stream. A pointer to such a structure can be used as a parameter */ /* for the functions @FT_Open_Face and @FT_Attach_Stream. */ /* */ /* <Fields> */ /* flags :: A set of bit flags indicating how to use the */ /* structure. */ /* */ /* memory_base :: The first byte of the file in memory. */ /* */ /* memory_size :: The size in bytes of the file in memory. */ /* */ /* pathname :: A pointer to an 8-bit file pathname. */ /* */ /* stream :: A handle to a source stream object. */ /* */ /* driver :: This field is exclusively used by @FT_Open_Face; */ /* it simply specifies the font driver to use to open */ /* the face. If set to~0, FreeType tries to load the */ /* face with each one of the drivers in its list. */ /* */ /* num_params :: The number of extra parameters. */ /* */ /* params :: Extra parameters passed to the font driver when */ /* opening a new face. */ /* */ /* <Note> */ /* The stream type is determined by the contents of `flags' which */ /* are tested in the following order by @FT_Open_Face: */ /* */ /* If the `FT_OPEN_MEMORY' bit is set, assume that this is a */ /* memory file of `memory_size' bytes, located at `memory_address'. */ /* The data are are not copied, and the client is responsible for */ /* releasing and destroying them _after_ the corresponding call to */ /* @FT_Done_Face. */ /* */ /* Otherwise, if the `FT_OPEN_STREAM' bit is set, assume that a */ /* custom input stream `stream' is used. */ /* */ /* Otherwise, if the `FT_OPEN_PATHNAME' bit is set, assume that this */ /* is a normal file and use `pathname' to open it. */ /* */ /* If the `FT_OPEN_DRIVER' bit is set, @FT_Open_Face only tries to */ /* open the file with the driver whose handler is in `driver'. */ /* */ /* If the `FT_OPEN_PARAMS' bit is set, the parameters given by */ /* `num_params' and `params' is used. They are ignored otherwise. */ /* */ /* Ideally, both the `pathname' and `params' fields should be tagged */ /* as `const'; this is missing for API backwards compatibility. In */ /* other words, applications should treat them as read-only. */ /* */ typedef struct FT_Open_Args_ { FT_UInt flags; const FT_Byte* memory_base; FT_Long memory_size; FT_String* pathname; FT_Stream stream; FT_Module driver; FT_Int num_params; FT_Parameter* params; } FT_Open_Args; /*************************************************************************/ /* */ /* <Function> */ /* FT_New_Face */ /* */ /* <Description> */ /* This function calls @FT_Open_Face to open a font by its pathname. */ /* */ /* <InOut> */ /* library :: A handle to the library resource. */ /* */ /* <Input> */ /* pathname :: A path to the font file. */ /* */ /* face_index :: The index of the face within the font. The first */ /* face has index~0. */ /* */ /* <Output> */ /* aface :: A handle to a new face object. If `face_index' is */ /* greater than or equal to zero, it must be non-NULL. */ /* See @FT_Open_Face for more details. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ FT_EXPORT( FT_Error ) FT_New_Face( FT_Library library, const char* filepathname, FT_Long face_index, FT_Face *aface ); /*************************************************************************/ /* */ /* <Function> */ /* FT_New_Memory_Face */ /* */ /* <Description> */ /* This function calls @FT_Open_Face to open a font which has been */ /* loaded into memory. */ /* */ /* <InOut> */ /* library :: A handle to the library resource. */ /* */ /* <Input> */ /* file_base :: A pointer to the beginning of the font data. */ /* */ /* file_size :: The size of the memory chunk used by the font data. */ /* */ /* face_index :: The index of the face within the font. The first */ /* face has index~0. */ /* */ /* <Output> */ /* aface :: A handle to a new face object. If `face_index' is */ /* greater than or equal to zero, it must be non-NULL. */ /* See @FT_Open_Face for more details. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* You must not deallocate the memory before calling @FT_Done_Face. */ /* */ FT_EXPORT( FT_Error ) FT_New_Memory_Face( FT_Library library, const FT_Byte* file_base, FT_Long file_size, FT_Long face_index, FT_Face *aface ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Open_Face */ /* */ /* <Description> */ /* Create a face object from a given resource described by */ /* @FT_Open_Args. */ /* */ /* <InOut> */ /* library :: A handle to the library resource. */ /* */ /* <Input> */ /* args :: A pointer to an `FT_Open_Args' structure which must */ /* be filled by the caller. */ /* */ /* face_index :: The index of the face within the font. The first */ /* face has index~0. */ /* */ /* <Output> */ /* aface :: A handle to a new face object. If `face_index' is */ /* greater than or equal to zero, it must be non-NULL. */ /* See note below. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* Unlike FreeType 1.x, this function automatically creates a glyph */ /* slot for the face object which can be accessed directly through */ /* `face->glyph'. */ /* */ /* FT_Open_Face can be used to quickly check whether the font */ /* format of a given font resource is supported by FreeType. If the */ /* `face_index' field is negative, the function's return value is~0 */ /* if the font format is recognized, or non-zero otherwise; */ /* the function returns a more or less empty face handle in `*aface' */ /* (if `aface' isn't NULL). The only useful field in this special */ /* case is `face->num_faces' which gives the number of faces within */ /* the font file. After examination, the returned @FT_Face structure */ /* should be deallocated with a call to @FT_Done_Face. */ /* */ /* Each new face object created with this function also owns a */ /* default @FT_Size object, accessible as `face->size'. */ /* */ /* One @FT_Library instance can have multiple face objects, this is, */ /* @FT_Open_Face and its siblings can be called multiple times using */ /* the same `library' argument. */ /* */ /* See the discussion of reference counters in the description of */ /* @FT_Reference_Face. */ /* */ FT_EXPORT( FT_Error ) FT_Open_Face( FT_Library library, const FT_Open_Args* args, FT_Long face_index, FT_Face *aface ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Attach_File */ /* */ /* <Description> */ /* This function calls @FT_Attach_Stream to attach a file. */ /* */ /* <InOut> */ /* face :: The target face object. */ /* */ /* <Input> */ /* filepathname :: The pathname. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ FT_EXPORT( FT_Error ) FT_Attach_File( FT_Face face, const char* filepathname ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Attach_Stream */ /* */ /* <Description> */ /* `Attach' data to a face object. Normally, this is used to read */ /* additional information for the face object. For example, you can */ /* attach an AFM file that comes with a Type~1 font to get the */ /* kerning values and other metrics. */ /* */ /* <InOut> */ /* face :: The target face object. */ /* */ /* <Input> */ /* parameters :: A pointer to @FT_Open_Args which must be filled by */ /* the caller. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* The meaning of the `attach' (i.e., what really happens when the */ /* new file is read) is not fixed by FreeType itself. It really */ /* depends on the font format (and thus the font driver). */ /* */ /* Client applications are expected to know what they are doing */ /* when invoking this function. Most drivers simply do not implement */ /* file attachments. */ /* */ FT_EXPORT( FT_Error ) FT_Attach_Stream( FT_Face face, FT_Open_Args* parameters ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Reference_Face */ /* */ /* <Description> */ /* A counter gets initialized to~1 at the time an @FT_Face structure */ /* is created. This function increments the counter. @FT_Done_Face */ /* then only destroys a face if the counter is~1, otherwise it simply */ /* decrements the counter. */ /* */ /* This function helps in managing life-cycles of structures which */ /* reference @FT_Face objects. */ /* */ /* <Input> */ /* face :: A handle to a target face object. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Since> */ /* 2.4.2 */ /* */ FT_EXPORT( FT_Error ) FT_Reference_Face( FT_Face face ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Done_Face */ /* */ /* <Description> */ /* Discard a given face object, as well as all of its child slots and */ /* sizes. */ /* */ /* <Input> */ /* face :: A handle to a target face object. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* See the discussion of reference counters in the description of */ /* @FT_Reference_Face. */ /* */ FT_EXPORT( FT_Error ) FT_Done_Face( FT_Face face ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Select_Size */ /* */ /* <Description> */ /* Select a bitmap strike. */ /* */ /* <InOut> */ /* face :: A handle to a target face object. */ /* */ /* <Input> */ /* strike_index :: The index of the bitmap strike in the */ /* `available_sizes' field of @FT_FaceRec structure. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ FT_EXPORT( FT_Error ) FT_Select_Size( FT_Face face, FT_Int strike_index ); /*************************************************************************/ /* */ /* <Enum> */ /* FT_Size_Request_Type */ /* */ /* <Description> */ /* An enumeration type that lists the supported size request types. */ /* */ /* <Values> */ /* FT_SIZE_REQUEST_TYPE_NOMINAL :: */ /* The nominal size. The `units_per_EM' field of @FT_FaceRec is */ /* used to determine both scaling values. */ /* */ /* FT_SIZE_REQUEST_TYPE_REAL_DIM :: */ /* The real dimension. The sum of the the `ascender' and (minus */ /* of) the `descender' fields of @FT_FaceRec are used to determine */ /* both scaling values. */ /* */ /* FT_SIZE_REQUEST_TYPE_BBOX :: */ /* The font bounding box. The width and height of the `bbox' field */ /* of @FT_FaceRec are used to determine the horizontal and vertical */ /* scaling value, respectively. */ /* */ /* FT_SIZE_REQUEST_TYPE_CELL :: */ /* The `max_advance_width' field of @FT_FaceRec is used to */ /* determine the horizontal scaling value; the vertical scaling */ /* value is determined the same way as */ /* @FT_SIZE_REQUEST_TYPE_REAL_DIM does. Finally, both scaling */ /* values are set to the smaller one. This type is useful if you */ /* want to specify the font size for, say, a window of a given */ /* dimension and 80x24 cells. */ /* */ /* FT_SIZE_REQUEST_TYPE_SCALES :: */ /* Specify the scaling values directly. */ /* */ /* <Note> */ /* The above descriptions only apply to scalable formats. For bitmap */ /* formats, the behaviour is up to the driver. */ /* */ /* See the note section of @FT_Size_Metrics if you wonder how size */ /* requesting relates to scaling values. */ /* */ typedef enum FT_Size_Request_Type_ { FT_SIZE_REQUEST_TYPE_NOMINAL, FT_SIZE_REQUEST_TYPE_REAL_DIM, FT_SIZE_REQUEST_TYPE_BBOX, FT_SIZE_REQUEST_TYPE_CELL, FT_SIZE_REQUEST_TYPE_SCALES, FT_SIZE_REQUEST_TYPE_MAX } FT_Size_Request_Type; /*************************************************************************/ /* */ /* <Struct> */ /* FT_Size_RequestRec */ /* */ /* <Description> */ /* A structure used to model a size request. */ /* */ /* <Fields> */ /* type :: See @FT_Size_Request_Type. */ /* */ /* width :: The desired width. */ /* */ /* height :: The desired height. */ /* */ /* horiResolution :: The horizontal resolution. If set to zero, */ /* `width' is treated as a 26.6 fractional pixel */ /* value. */ /* */ /* vertResolution :: The vertical resolution. If set to zero, */ /* `height' is treated as a 26.6 fractional pixel */ /* value. */ /* */ /* <Note> */ /* If `width' is zero, then the horizontal scaling value is set equal */ /* to the vertical scaling value, and vice versa. */ /* */ typedef struct FT_Size_RequestRec_ { FT_Size_Request_Type type; FT_Long width; FT_Long height; FT_UInt horiResolution; FT_UInt vertResolution; } FT_Size_RequestRec; /*************************************************************************/ /* */ /* <Struct> */ /* FT_Size_Request */ /* */ /* <Description> */ /* A handle to a size request structure. */ /* */ typedef struct FT_Size_RequestRec_ *FT_Size_Request; /*************************************************************************/ /* */ /* <Function> */ /* FT_Request_Size */ /* */ /* <Description> */ /* Resize the scale of the active @FT_Size object in a face. */ /* */ /* <InOut> */ /* face :: A handle to a target face object. */ /* */ /* <Input> */ /* req :: A pointer to a @FT_Size_RequestRec. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* Although drivers may select the bitmap strike matching the */ /* request, you should not rely on this if you intend to select a */ /* particular bitmap strike. Use @FT_Select_Size instead in that */ /* case. */ /* */ FT_EXPORT( FT_Error ) FT_Request_Size( FT_Face face, FT_Size_Request req ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Set_Char_Size */ /* */ /* <Description> */ /* This function calls @FT_Request_Size to request the nominal size */ /* (in points). */ /* */ /* <InOut> */ /* face :: A handle to a target face object. */ /* */ /* <Input> */ /* char_width :: The nominal width, in 26.6 fractional points. */ /* */ /* char_height :: The nominal height, in 26.6 fractional points. */ /* */ /* horz_resolution :: The horizontal resolution in dpi. */ /* */ /* vert_resolution :: The vertical resolution in dpi. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* If either the character width or height is zero, it is set equal */ /* to the other value. */ /* */ /* If either the horizontal or vertical resolution is zero, it is set */ /* equal to the other value. */ /* */ /* A character width or height smaller than 1pt is set to 1pt; if */ /* both resolution values are zero, they are set to 72dpi. */ /* */ /* Don't use this function if you are using the FreeType cache API. */ /* */ FT_EXPORT( FT_Error ) FT_Set_Char_Size( FT_Face face, FT_F26Dot6 char_width, FT_F26Dot6 char_height, FT_UInt horz_resolution, FT_UInt vert_resolution ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Set_Pixel_Sizes */ /* */ /* <Description> */ /* This function calls @FT_Request_Size to request the nominal size */ /* (in pixels). */ /* */ /* <InOut> */ /* face :: A handle to the target face object. */ /* */ /* <Input> */ /* pixel_width :: The nominal width, in pixels. */ /* */ /* pixel_height :: The nominal height, in pixels. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ FT_EXPORT( FT_Error ) FT_Set_Pixel_Sizes( FT_Face face, FT_UInt pixel_width, FT_UInt pixel_height ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Load_Glyph */ /* */ /* <Description> */ /* A function used to load a single glyph into the glyph slot of a */ /* face object. */ /* */ /* <InOut> */ /* face :: A handle to the target face object where the glyph */ /* is loaded. */ /* */ /* <Input> */ /* glyph_index :: The index of the glyph in the font file. For */ /* CID-keyed fonts (either in PS or in CFF format) */ /* this argument specifies the CID value. */ /* */ /* load_flags :: A flag indicating what to load for this glyph. The */ /* @FT_LOAD_XXX constants can be used to control the */ /* glyph loading process (e.g., whether the outline */ /* should be scaled, whether to load bitmaps or not, */ /* whether to hint the outline, etc). */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* The loaded glyph may be transformed. See @FT_Set_Transform for */ /* the details. */ /* */ /* For subsetted CID-keyed fonts, `FT_Err_Invalid_Argument' is */ /* returned for invalid CID values (this is, for CID values which */ /* don't have a corresponding glyph in the font). See the discussion */ /* of the @FT_FACE_FLAG_CID_KEYED flag for more details. */ /* */ FT_EXPORT( FT_Error ) FT_Load_Glyph( FT_Face face, FT_UInt glyph_index, FT_Int32 load_flags ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Load_Char */ /* */ /* <Description> */ /* A function used to load a single glyph into the glyph slot of a */ /* face object, according to its character code. */ /* */ /* <InOut> */ /* face :: A handle to a target face object where the glyph */ /* is loaded. */ /* */ /* <Input> */ /* char_code :: The glyph's character code, according to the */ /* current charmap used in the face. */ /* */ /* load_flags :: A flag indicating what to load for this glyph. The */ /* @FT_LOAD_XXX constants can be used to control the */ /* glyph loading process (e.g., whether the outline */ /* should be scaled, whether to load bitmaps or not, */ /* whether to hint the outline, etc). */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* This function simply calls @FT_Get_Char_Index and @FT_Load_Glyph. */ /* */ FT_EXPORT( FT_Error ) FT_Load_Char( FT_Face face, FT_ULong char_code, FT_Int32 load_flags ); /************************************************************************* * * @enum: * FT_LOAD_XXX * * @description: * A list of bit-field constants used with @FT_Load_Glyph to indicate * what kind of operations to perform during glyph loading. * * @values: * FT_LOAD_DEFAULT :: * Corresponding to~0, this value is used as the default glyph load * operation. In this case, the following happens: * * 1. FreeType looks for a bitmap for the glyph corresponding to the * face's current size. If one is found, the function returns. * The bitmap data can be accessed from the glyph slot (see note * below). * * 2. If no embedded bitmap is searched or found, FreeType looks for a * scalable outline. If one is found, it is loaded from the font * file, scaled to device pixels, then `hinted' to the pixel grid * in order to optimize it. The outline data can be accessed from * the glyph slot (see note below). * * Note that by default, the glyph loader doesn't render outlines into * bitmaps. The following flags are used to modify this default * behaviour to more specific and useful cases. * * FT_LOAD_NO_SCALE :: * Don't scale the outline glyph loaded, but keep it in font units. * * This flag implies @FT_LOAD_NO_HINTING and @FT_LOAD_NO_BITMAP, and * unsets @FT_LOAD_RENDER. * * FT_LOAD_NO_HINTING :: * Disable hinting. This generally generates `blurrier' bitmap glyph * when the glyph is rendered in any of the anti-aliased modes. See * also the note below. * * This flag is implied by @FT_LOAD_NO_SCALE. * * FT_LOAD_RENDER :: * Call @FT_Render_Glyph after the glyph is loaded. By default, the * glyph is rendered in @FT_RENDER_MODE_NORMAL mode. This can be * overridden by @FT_LOAD_TARGET_XXX or @FT_LOAD_MONOCHROME. * * This flag is unset by @FT_LOAD_NO_SCALE. * * FT_LOAD_NO_BITMAP :: * Ignore bitmap strikes when loading. Bitmap-only fonts ignore this * flag. * * @FT_LOAD_NO_SCALE always sets this flag. * * FT_LOAD_VERTICAL_LAYOUT :: * Load the glyph for vertical text layout. _Don't_ use it as it is * problematic currently. * * FT_LOAD_FORCE_AUTOHINT :: * Indicates that the auto-hinter is preferred over the font's native * hinter. See also the note below. * * FT_LOAD_CROP_BITMAP :: * Indicates that the font driver should crop the loaded bitmap glyph * (i.e., remove all space around its black bits). Not all drivers * implement this. * * FT_LOAD_PEDANTIC :: * Indicates that the font driver should perform pedantic verifications * during glyph loading. This is mostly used to detect broken glyphs * in fonts. By default, FreeType tries to handle broken fonts also. * * In particular, errors from the TrueType bytecode engine are not * passed to the application if this flag is not set; this might * result in partially hinted or distorted glyphs in case a glyph's * bytecode is buggy. * * FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH :: * Ignored. Deprecated. * * FT_LOAD_NO_RECURSE :: * This flag is only used internally. It merely indicates that the * font driver should not load composite glyphs recursively. Instead, * it should set the `num_subglyph' and `subglyphs' values of the * glyph slot accordingly, and set `glyph->format' to * @FT_GLYPH_FORMAT_COMPOSITE. * * The description of sub-glyphs is not available to client * applications for now. * * This flag implies @FT_LOAD_NO_SCALE and @FT_LOAD_IGNORE_TRANSFORM. * * FT_LOAD_IGNORE_TRANSFORM :: * Indicates that the transform matrix set by @FT_Set_Transform should * be ignored. * * FT_LOAD_MONOCHROME :: * This flag is used with @FT_LOAD_RENDER to indicate that you want to * render an outline glyph to a 1-bit monochrome bitmap glyph, with * 8~pixels packed into each byte of the bitmap data. * * Note that this has no effect on the hinting algorithm used. You * should rather use @FT_LOAD_TARGET_MONO so that the * monochrome-optimized hinting algorithm is used. * * FT_LOAD_LINEAR_DESIGN :: * Indicates that the `linearHoriAdvance' and `linearVertAdvance' * fields of @FT_GlyphSlotRec should be kept in font units. See * @FT_GlyphSlotRec for details. * * FT_LOAD_NO_AUTOHINT :: * Disable auto-hinter. See also the note below. * * @note: * By default, hinting is enabled and the font's native hinter (see * @FT_FACE_FLAG_HINTER) is preferred over the auto-hinter. You can * disable hinting by setting @FT_LOAD_NO_HINTING or change the * precedence by setting @FT_LOAD_FORCE_AUTOHINT. You can also set * @FT_LOAD_NO_AUTOHINT in case you don't want the auto-hinter to be * used at all. * * See the description of @FT_FACE_FLAG_TRICKY for a special exception * (affecting only a handful of Asian fonts). * * Besides deciding which hinter to use, you can also decide which * hinting algorithm to use. See @FT_LOAD_TARGET_XXX for details. * */ #define FT_LOAD_DEFAULT 0x0 #define FT_LOAD_NO_SCALE ( 1L << 0 ) #define FT_LOAD_NO_HINTING ( 1L << 1 ) #define FT_LOAD_RENDER ( 1L << 2 ) #define FT_LOAD_NO_BITMAP ( 1L << 3 ) #define FT_LOAD_VERTICAL_LAYOUT ( 1L << 4 ) #define FT_LOAD_FORCE_AUTOHINT ( 1L << 5 ) #define FT_LOAD_CROP_BITMAP ( 1L << 6 ) #define FT_LOAD_PEDANTIC ( 1L << 7 ) #define FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ( 1L << 9 ) #define FT_LOAD_NO_RECURSE ( 1L << 10 ) #define FT_LOAD_IGNORE_TRANSFORM ( 1L << 11 ) #define FT_LOAD_MONOCHROME ( 1L << 12 ) #define FT_LOAD_LINEAR_DESIGN ( 1L << 13 ) #define FT_LOAD_NO_AUTOHINT ( 1L << 15 ) /* */ /* used internally only by certain font drivers! */ #define FT_LOAD_ADVANCE_ONLY ( 1L << 8 ) #define FT_LOAD_SBITS_ONLY ( 1L << 14 ) /************************************************************************** * * @enum: * FT_LOAD_TARGET_XXX * * @description: * A list of values that are used to select a specific hinting algorithm * to use by the hinter. You should OR one of these values to your * `load_flags' when calling @FT_Load_Glyph. * * Note that font's native hinters may ignore the hinting algorithm you * have specified (e.g., the TrueType bytecode interpreter). You can set * @FT_LOAD_FORCE_AUTOHINT to ensure that the auto-hinter is used. * * Also note that @FT_LOAD_TARGET_LIGHT is an exception, in that it * always implies @FT_LOAD_FORCE_AUTOHINT. * * @values: * FT_LOAD_TARGET_NORMAL :: * This corresponds to the default hinting algorithm, optimized for * standard gray-level rendering. For monochrome output, use * @FT_LOAD_TARGET_MONO instead. * * FT_LOAD_TARGET_LIGHT :: * A lighter hinting algorithm for non-monochrome modes. Many * generated glyphs are more fuzzy but better resemble its original * shape. A bit like rendering on Mac OS~X. * * As a special exception, this target implies @FT_LOAD_FORCE_AUTOHINT. * * FT_LOAD_TARGET_MONO :: * Strong hinting algorithm that should only be used for monochrome * output. The result is probably unpleasant if the glyph is rendered * in non-monochrome modes. * * FT_LOAD_TARGET_LCD :: * A variant of @FT_LOAD_TARGET_NORMAL optimized for horizontally * decimated LCD displays. * * FT_LOAD_TARGET_LCD_V :: * A variant of @FT_LOAD_TARGET_NORMAL optimized for vertically * decimated LCD displays. * * @note: * You should use only _one_ of the FT_LOAD_TARGET_XXX values in your * `load_flags'. They can't be ORed. * * If @FT_LOAD_RENDER is also set, the glyph is rendered in the * corresponding mode (i.e., the mode which matches the used algorithm * best). An exeption is FT_LOAD_TARGET_MONO since it implies * @FT_LOAD_MONOCHROME. * * You can use a hinting algorithm that doesn't correspond to the same * rendering mode. As an example, it is possible to use the `light' * hinting algorithm and have the results rendered in horizontal LCD * pixel mode, with code like * * { * FT_Load_Glyph( face, glyph_index, * load_flags | FT_LOAD_TARGET_LIGHT ); * * FT_Render_Glyph( face->glyph, FT_RENDER_MODE_LCD ); * } * */ #define FT_LOAD_TARGET_( x ) ( (FT_Int32)( (x) & 15 ) << 16 ) #define FT_LOAD_TARGET_NORMAL FT_LOAD_TARGET_( FT_RENDER_MODE_NORMAL ) #define FT_LOAD_TARGET_LIGHT FT_LOAD_TARGET_( FT_RENDER_MODE_LIGHT ) #define FT_LOAD_TARGET_MONO FT_LOAD_TARGET_( FT_RENDER_MODE_MONO ) #define FT_LOAD_TARGET_LCD FT_LOAD_TARGET_( FT_RENDER_MODE_LCD ) #define FT_LOAD_TARGET_LCD_V FT_LOAD_TARGET_( FT_RENDER_MODE_LCD_V ) /************************************************************************** * * @macro: * FT_LOAD_TARGET_MODE * * @description: * Return the @FT_Render_Mode corresponding to a given * @FT_LOAD_TARGET_XXX value. * */ #define FT_LOAD_TARGET_MODE( x ) ( (FT_Render_Mode)( ( (x) >> 16 ) & 15 ) ) /*************************************************************************/ /* */ /* <Function> */ /* FT_Set_Transform */ /* */ /* <Description> */ /* A function used to set the transformation that is applied to glyph */ /* images when they are loaded into a glyph slot through */ /* @FT_Load_Glyph. */ /* */ /* <InOut> */ /* face :: A handle to the source face object. */ /* */ /* <Input> */ /* matrix :: A pointer to the transformation's 2x2 matrix. Use~0 for */ /* the identity matrix. */ /* delta :: A pointer to the translation vector. Use~0 for the null */ /* vector. */ /* */ /* <Note> */ /* The transformation is only applied to scalable image formats after */ /* the glyph has been loaded. It means that hinting is unaltered by */ /* the transformation and is performed on the character size given in */ /* the last call to @FT_Set_Char_Size or @FT_Set_Pixel_Sizes. */ /* */ /* Note that this also transforms the `face.glyph.advance' field, but */ /* *not* the values in `face.glyph.metrics'. */ /* */ FT_EXPORT( void ) FT_Set_Transform( FT_Face face, FT_Matrix* matrix, FT_Vector* delta ); /*************************************************************************/ /* */ /* <Enum> */ /* FT_Render_Mode */ /* */ /* <Description> */ /* An enumeration type that lists the render modes supported by */ /* FreeType~2. Each mode corresponds to a specific type of scanline */ /* conversion performed on the outline. */ /* */ /* For bitmap fonts and embedded bitmaps the `bitmap->pixel_mode' */ /* field in the @FT_GlyphSlotRec structure gives the format of the */ /* returned bitmap. */ /* */ /* All modes except @FT_RENDER_MODE_MONO use 256 levels of opacity. */ /* */ /* <Values> */ /* FT_RENDER_MODE_NORMAL :: */ /* This is the default render mode; it corresponds to 8-bit */ /* anti-aliased bitmaps. */ /* */ /* FT_RENDER_MODE_LIGHT :: */ /* This is equivalent to @FT_RENDER_MODE_NORMAL. It is only */ /* defined as a separate value because render modes are also used */ /* indirectly to define hinting algorithm selectors. See */ /* @FT_LOAD_TARGET_XXX for details. */ /* */ /* FT_RENDER_MODE_MONO :: */ /* This mode corresponds to 1-bit bitmaps (with 2~levels of */ /* opacity). */ /* */ /* FT_RENDER_MODE_LCD :: */ /* This mode corresponds to horizontal RGB and BGR sub-pixel */ /* displays like LCD screens. It produces 8-bit bitmaps that are */ /* 3~times the width of the original glyph outline in pixels, and */ /* which use the @FT_PIXEL_MODE_LCD mode. */ /* */ /* FT_RENDER_MODE_LCD_V :: */ /* This mode corresponds to vertical RGB and BGR sub-pixel displays */ /* (like PDA screens, rotated LCD displays, etc.). It produces */ /* 8-bit bitmaps that are 3~times the height of the original */ /* glyph outline in pixels and use the @FT_PIXEL_MODE_LCD_V mode. */ /* */ /* <Note> */ /* The LCD-optimized glyph bitmaps produced by FT_Render_Glyph can be */ /* filtered to reduce color-fringes by using @FT_Library_SetLcdFilter */ /* (not active in the default builds). It is up to the caller to */ /* either call @FT_Library_SetLcdFilter (if available) or do the */ /* filtering itself. */ /* */ /* The selected render mode only affects vector glyphs of a font. */ /* Embedded bitmaps often have a different pixel mode like */ /* @FT_PIXEL_MODE_MONO. You can use @FT_Bitmap_Convert to transform */ /* them into 8-bit pixmaps. */ /* */ typedef enum FT_Render_Mode_ { FT_RENDER_MODE_NORMAL = 0, FT_RENDER_MODE_LIGHT, FT_RENDER_MODE_MONO, FT_RENDER_MODE_LCD, FT_RENDER_MODE_LCD_V, FT_RENDER_MODE_MAX } FT_Render_Mode; /*************************************************************************/ /* */ /* <Enum> */ /* ft_render_mode_xxx */ /* */ /* <Description> */ /* These constants are deprecated. Use the corresponding */ /* @FT_Render_Mode values instead. */ /* */ /* <Values> */ /* ft_render_mode_normal :: see @FT_RENDER_MODE_NORMAL */ /* ft_render_mode_mono :: see @FT_RENDER_MODE_MONO */ /* */ #define ft_render_mode_normal FT_RENDER_MODE_NORMAL #define ft_render_mode_mono FT_RENDER_MODE_MONO /*************************************************************************/ /* */ /* <Function> */ /* FT_Render_Glyph */ /* */ /* <Description> */ /* Convert a given glyph image to a bitmap. It does so by inspecting */ /* the glyph image format, finding the relevant renderer, and */ /* invoking it. */ /* */ /* <InOut> */ /* slot :: A handle to the glyph slot containing the image to */ /* convert. */ /* */ /* <Input> */ /* render_mode :: This is the render mode used to render the glyph */ /* image into a bitmap. See @FT_Render_Mode for a */ /* list of possible values. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ FT_EXPORT( FT_Error ) FT_Render_Glyph( FT_GlyphSlot slot, FT_Render_Mode render_mode ); /*************************************************************************/ /* */ /* <Enum> */ /* FT_Kerning_Mode */ /* */ /* <Description> */ /* An enumeration used to specify which kerning values to return in */ /* @FT_Get_Kerning. */ /* */ /* <Values> */ /* FT_KERNING_DEFAULT :: Return scaled and grid-fitted kerning */ /* distances (value is~0). */ /* */ /* FT_KERNING_UNFITTED :: Return scaled but un-grid-fitted kerning */ /* distances. */ /* */ /* FT_KERNING_UNSCALED :: Return the kerning vector in original font */ /* units. */ /* */ typedef enum FT_Kerning_Mode_ { FT_KERNING_DEFAULT = 0, FT_KERNING_UNFITTED, FT_KERNING_UNSCALED } FT_Kerning_Mode; /*************************************************************************/ /* */ /* <Const> */ /* ft_kerning_default */ /* */ /* <Description> */ /* This constant is deprecated. Please use @FT_KERNING_DEFAULT */ /* instead. */ /* */ #define ft_kerning_default FT_KERNING_DEFAULT /*************************************************************************/ /* */ /* <Const> */ /* ft_kerning_unfitted */ /* */ /* <Description> */ /* This constant is deprecated. Please use @FT_KERNING_UNFITTED */ /* instead. */ /* */ #define ft_kerning_unfitted FT_KERNING_UNFITTED /*************************************************************************/ /* */ /* <Const> */ /* ft_kerning_unscaled */ /* */ /* <Description> */ /* This constant is deprecated. Please use @FT_KERNING_UNSCALED */ /* instead. */ /* */ #define ft_kerning_unscaled FT_KERNING_UNSCALED /*************************************************************************/ /* */ /* <Function> */ /* FT_Get_Kerning */ /* */ /* <Description> */ /* Return the kerning vector between two glyphs of a same face. */ /* */ /* <Input> */ /* face :: A handle to a source face object. */ /* */ /* left_glyph :: The index of the left glyph in the kern pair. */ /* */ /* right_glyph :: The index of the right glyph in the kern pair. */ /* */ /* kern_mode :: See @FT_Kerning_Mode for more information. */ /* Determines the scale and dimension of the returned */ /* kerning vector. */ /* */ /* <Output> */ /* akerning :: The kerning vector. This is either in font units */ /* or in pixels (26.6 format) for scalable formats, */ /* and in pixels for fixed-sizes formats. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* Only horizontal layouts (left-to-right & right-to-left) are */ /* supported by this method. Other layouts, or more sophisticated */ /* kernings, are out of the scope of this API function -- they can be */ /* implemented through format-specific interfaces. */ /* */ FT_EXPORT( FT_Error ) FT_Get_Kerning( FT_Face face, FT_UInt left_glyph, FT_UInt right_glyph, FT_UInt kern_mode, FT_Vector *akerning ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Get_Track_Kerning */ /* */ /* <Description> */ /* Return the track kerning for a given face object at a given size. */ /* */ /* <Input> */ /* face :: A handle to a source face object. */ /* */ /* point_size :: The point size in 16.16 fractional points. */ /* */ /* degree :: The degree of tightness. Increasingly negative */ /* values represent tighter track kerning, while */ /* increasingly positive values represent looser track */ /* kerning. Value zero means no track kerning. */ /* */ /* <Output> */ /* akerning :: The kerning in 16.16 fractional points, to be */ /* uniformly applied between all glyphs. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* Currently, only the Type~1 font driver supports track kerning, */ /* using data from AFM files (if attached with @FT_Attach_File or */ /* @FT_Attach_Stream). */ /* */ /* Only very few AFM files come with track kerning data; please refer */ /* to the Adobe's AFM specification for more details. */ /* */ FT_EXPORT( FT_Error ) FT_Get_Track_Kerning( FT_Face face, FT_Fixed point_size, FT_Int degree, FT_Fixed* akerning ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Get_Glyph_Name */ /* */ /* <Description> */ /* Retrieve the ASCII name of a given glyph in a face. This only */ /* works for those faces where @FT_HAS_GLYPH_NAMES(face) returns~1. */ /* */ /* <Input> */ /* face :: A handle to a source face object. */ /* */ /* glyph_index :: The glyph index. */ /* */ /* buffer_max :: The maximum number of bytes available in the */ /* buffer. */ /* */ /* <Output> */ /* buffer :: A pointer to a target buffer where the name is */ /* copied to. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* An error is returned if the face doesn't provide glyph names or if */ /* the glyph index is invalid. In all cases of failure, the first */ /* byte of `buffer' is set to~0 to indicate an empty name. */ /* */ /* The glyph name is truncated to fit within the buffer if it is too */ /* long. The returned string is always zero-terminated. */ /* */ /* Be aware that FreeType reorders glyph indices internally so that */ /* glyph index~0 always corresponds to the `missing glyph' (called */ /* `.notdef'). */ /* */ /* This function is not compiled within the library if the config */ /* macro `FT_CONFIG_OPTION_NO_GLYPH_NAMES' is defined in */ /* `include/freetype/config/ftoptions.h'. */ /* */ FT_EXPORT( FT_Error ) FT_Get_Glyph_Name( FT_Face face, FT_UInt glyph_index, FT_Pointer buffer, FT_UInt buffer_max ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Get_Postscript_Name */ /* */ /* <Description> */ /* Retrieve the ASCII PostScript name of a given face, if available. */ /* This only works with PostScript and TrueType fonts. */ /* */ /* <Input> */ /* face :: A handle to the source face object. */ /* */ /* <Return> */ /* A pointer to the face's PostScript name. NULL if unavailable. */ /* */ /* <Note> */ /* The returned pointer is owned by the face and is destroyed with */ /* it. */ /* */ FT_EXPORT( const char* ) FT_Get_Postscript_Name( FT_Face face ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Select_Charmap */ /* */ /* <Description> */ /* Select a given charmap by its encoding tag (as listed in */ /* `freetype.h'). */ /* */ /* <InOut> */ /* face :: A handle to the source face object. */ /* */ /* <Input> */ /* encoding :: A handle to the selected encoding. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* This function returns an error if no charmap in the face */ /* corresponds to the encoding queried here. */ /* */ /* Because many fonts contain more than a single cmap for Unicode */ /* encoding, this function has some special code to select the one */ /* which covers Unicode best (`best' in the sense that a UCS-4 cmap */ /* is preferred to a UCS-2 cmap). It is thus preferable to */ /* @FT_Set_Charmap in this case. */ /* */ FT_EXPORT( FT_Error ) FT_Select_Charmap( FT_Face face, FT_Encoding encoding ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Set_Charmap */ /* */ /* <Description> */ /* Select a given charmap for character code to glyph index mapping. */ /* */ /* <InOut> */ /* face :: A handle to the source face object. */ /* */ /* <Input> */ /* charmap :: A handle to the selected charmap. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* This function returns an error if the charmap is not part of */ /* the face (i.e., if it is not listed in the `face->charmaps' */ /* table). */ /* */ /* It also fails if a type~14 charmap is selected. */ /* */ FT_EXPORT( FT_Error ) FT_Set_Charmap( FT_Face face, FT_CharMap charmap ); /************************************************************************* * * @function: * FT_Get_Charmap_Index * * @description: * Retrieve index of a given charmap. * * @input: * charmap :: * A handle to a charmap. * * @return: * The index into the array of character maps within the face to which * `charmap' belongs. If an error occurs, -1 is returned. * */ FT_EXPORT( FT_Int ) FT_Get_Charmap_Index( FT_CharMap charmap ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Get_Char_Index */ /* */ /* <Description> */ /* Return the glyph index of a given character code. This function */ /* uses a charmap object to do the mapping. */ /* */ /* <Input> */ /* face :: A handle to the source face object. */ /* */ /* charcode :: The character code. */ /* */ /* <Return> */ /* The glyph index. 0~means `undefined character code'. */ /* */ /* <Note> */ /* If you use FreeType to manipulate the contents of font files */ /* directly, be aware that the glyph index returned by this function */ /* doesn't always correspond to the internal indices used within */ /* the file. This is done to ensure that value~0 always corresponds */ /* to the `missing glyph'. */ /* */ FT_EXPORT( FT_UInt ) FT_Get_Char_Index( FT_Face face, FT_ULong charcode ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Get_First_Char */ /* */ /* <Description> */ /* This function is used to return the first character code in the */ /* current charmap of a given face. It also returns the */ /* corresponding glyph index. */ /* */ /* <Input> */ /* face :: A handle to the source face object. */ /* */ /* <Output> */ /* agindex :: Glyph index of first character code. 0~if charmap is */ /* empty. */ /* */ /* <Return> */ /* The charmap's first character code. */ /* */ /* <Note> */ /* You should use this function with @FT_Get_Next_Char to be able to */ /* parse all character codes available in a given charmap. The code */ /* should look like this: */ /* */ /* { */ /* FT_ULong charcode; */ /* FT_UInt gindex; */ /* */ /* */ /* charcode = FT_Get_First_Char( face, &gindex ); */ /* while ( gindex != 0 ) */ /* { */ /* ... do something with (charcode,gindex) pair ... */ /* */ /* charcode = FT_Get_Next_Char( face, charcode, &gindex ); */ /* } */ /* } */ /* */ /* Note that `*agindex' is set to~0 if the charmap is empty. The */ /* result itself can be~0 in two cases: if the charmap is empty or */ /* if the value~0 is the first valid character code. */ /* */ FT_EXPORT( FT_ULong ) FT_Get_First_Char( FT_Face face, FT_UInt *agindex ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Get_Next_Char */ /* */ /* <Description> */ /* This function is used to return the next character code in the */ /* current charmap of a given face following the value `char_code', */ /* as well as the corresponding glyph index. */ /* */ /* <Input> */ /* face :: A handle to the source face object. */ /* char_code :: The starting character code. */ /* */ /* <Output> */ /* agindex :: Glyph index of next character code. 0~if charmap */ /* is empty. */ /* */ /* <Return> */ /* The charmap's next character code. */ /* */ /* <Note> */ /* You should use this function with @FT_Get_First_Char to walk */ /* over all character codes available in a given charmap. See the */ /* note for this function for a simple code example. */ /* */ /* Note that `*agindex' is set to~0 when there are no more codes in */ /* the charmap. */ /* */ FT_EXPORT( FT_ULong ) FT_Get_Next_Char( FT_Face face, FT_ULong char_code, FT_UInt *agindex ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Get_Name_Index */ /* */ /* <Description> */ /* Return the glyph index of a given glyph name. This function uses */ /* driver specific objects to do the translation. */ /* */ /* <Input> */ /* face :: A handle to the source face object. */ /* */ /* glyph_name :: The glyph name. */ /* */ /* <Return> */ /* The glyph index. 0~means `undefined character code'. */ /* */ FT_EXPORT( FT_UInt ) FT_Get_Name_Index( FT_Face face, FT_String* glyph_name ); /************************************************************************* * * @macro: * FT_SUBGLYPH_FLAG_XXX * * @description: * A list of constants used to describe subglyphs. Please refer to the * TrueType specification for the meaning of the various flags. * * @values: * FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS :: * FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES :: * FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID :: * FT_SUBGLYPH_FLAG_SCALE :: * FT_SUBGLYPH_FLAG_XY_SCALE :: * FT_SUBGLYPH_FLAG_2X2 :: * FT_SUBGLYPH_FLAG_USE_MY_METRICS :: * */ #define FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS 1 #define FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES 2 #define FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID 4 #define FT_SUBGLYPH_FLAG_SCALE 8 #define FT_SUBGLYPH_FLAG_XY_SCALE 0x40 #define FT_SUBGLYPH_FLAG_2X2 0x80 #define FT_SUBGLYPH_FLAG_USE_MY_METRICS 0x200 /************************************************************************* * * @func: * FT_Get_SubGlyph_Info * * @description: * Retrieve a description of a given subglyph. Only use it if * `glyph->format' is @FT_GLYPH_FORMAT_COMPOSITE; an error is * returned otherwise. * * @input: * glyph :: * The source glyph slot. * * sub_index :: * The index of the subglyph. Must be less than * `glyph->num_subglyphs'. * * @output: * p_index :: * The glyph index of the subglyph. * * p_flags :: * The subglyph flags, see @FT_SUBGLYPH_FLAG_XXX. * * p_arg1 :: * The subglyph's first argument (if any). * * p_arg2 :: * The subglyph's second argument (if any). * * p_transform :: * The subglyph transformation (if any). * * @return: * FreeType error code. 0~means success. * * @note: * The values of `*p_arg1', `*p_arg2', and `*p_transform' must be * interpreted depending on the flags returned in `*p_flags'. See the * TrueType specification for details. * */ FT_EXPORT( FT_Error ) FT_Get_SubGlyph_Info( FT_GlyphSlot glyph, FT_UInt sub_index, FT_Int *p_index, FT_UInt *p_flags, FT_Int *p_arg1, FT_Int *p_arg2, FT_Matrix *p_transform ); /*************************************************************************/ /* */ /* <Enum> */ /* FT_FSTYPE_XXX */ /* */ /* <Description> */ /* A list of bit flags used in the `fsType' field of the OS/2 table */ /* in a TrueType or OpenType font and the `FSType' entry in a */ /* PostScript font. These bit flags are returned by */ /* @FT_Get_FSType_Flags; they inform client applications of embedding */ /* and subsetting restrictions associated with a font. */ /* */ /* See http://www.adobe.com/devnet/acrobat/pdfs/FontPolicies.pdf for */ /* more details. */ /* */ /* <Values> */ /* FT_FSTYPE_INSTALLABLE_EMBEDDING :: */ /* Fonts with no fsType bit set may be embedded and permanently */ /* installed on the remote system by an application. */ /* */ /* FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING :: */ /* Fonts that have only this bit set must not be modified, embedded */ /* or exchanged in any manner without first obtaining permission of */ /* the font software copyright owner. */ /* */ /* FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING :: */ /* If this bit is set, the font may be embedded and temporarily */ /* loaded on the remote system. Documents containing Preview & */ /* Print fonts must be opened `read-only'; no edits can be applied */ /* to the document. */ /* */ /* FT_FSTYPE_EDITABLE_EMBEDDING :: */ /* If this bit is set, the font may be embedded but must only be */ /* installed temporarily on other systems. In contrast to Preview */ /* & Print fonts, documents containing editable fonts may be opened */ /* for reading, editing is permitted, and changes may be saved. */ /* */ /* FT_FSTYPE_NO_SUBSETTING :: */ /* If this bit is set, the font may not be subsetted prior to */ /* embedding. */ /* */ /* FT_FSTYPE_BITMAP_EMBEDDING_ONLY :: */ /* If this bit is set, only bitmaps contained in the font may be */ /* embedded; no outline data may be embedded. If there are no */ /* bitmaps available in the font, then the font is unembeddable. */ /* */ /* <Note> */ /* While the fsType flags can indicate that a font may be embedded, a */ /* license with the font vendor may be separately required to use the */ /* font in this way. */ /* */ #define FT_FSTYPE_INSTALLABLE_EMBEDDING 0x0000 #define FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING 0x0002 #define FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING 0x0004 #define FT_FSTYPE_EDITABLE_EMBEDDING 0x0008 #define FT_FSTYPE_NO_SUBSETTING 0x0100 #define FT_FSTYPE_BITMAP_EMBEDDING_ONLY 0x0200 /*************************************************************************/ /* */ /* <Function> */ /* FT_Get_FSType_Flags */ /* */ /* <Description> */ /* Return the fsType flags for a font. */ /* */ /* <Input> */ /* face :: A handle to the source face object. */ /* */ /* <Return> */ /* The fsType flags, @FT_FSTYPE_XXX. */ /* */ /* <Note> */ /* Use this function rather than directly reading the `fs_type' field */ /* in the @PS_FontInfoRec structure which is only guaranteed to */ /* return the correct results for Type~1 fonts. */ /* */ /* <Since> */ /* 2.3.8 */ /* */ FT_EXPORT( FT_UShort ) FT_Get_FSType_Flags( FT_Face face ); /*************************************************************************/ /* */ /* <Section> */ /* glyph_variants */ /* */ /* <Title> */ /* Glyph Variants */ /* */ /* <Abstract> */ /* The FreeType~2 interface to Unicode Ideographic Variation */ /* Sequences (IVS), using the SFNT cmap format~14. */ /* */ /* <Description> */ /* Many CJK characters have variant forms. They are a sort of grey */ /* area somewhere between being totally irrelevant and semantically */ /* distinct; for this reason, the Unicode consortium decided to */ /* introduce Ideographic Variation Sequences (IVS), consisting of a */ /* Unicode base character and one of 240 variant selectors */ /* (U+E0100-U+E01EF), instead of further extending the already huge */ /* code range for CJK characters. */ /* */ /* An IVS is registered and unique; for further details please refer */ /* to Unicode Technical Report #37, the Ideographic Variation */ /* Database. To date (October 2007), the character with the most */ /* variants is U+908A, having 8~such IVS. */ /* */ /* Adobe and MS decided to support IVS with a new cmap subtable */ /* (format~14). It is an odd subtable because it is not a mapping of */ /* input code points to glyphs, but contains lists of all variants */ /* supported by the font. */ /* */ /* A variant may be either `default' or `non-default'. A default */ /* variant is the one you will get for that code point if you look it */ /* up in the standard Unicode cmap. A non-default variant is a */ /* different glyph. */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* <Function> */ /* FT_Face_GetCharVariantIndex */ /* */ /* <Description> */ /* Return the glyph index of a given character code as modified by */ /* the variation selector. */ /* */ /* <Input> */ /* face :: */ /* A handle to the source face object. */ /* */ /* charcode :: */ /* The character code point in Unicode. */ /* */ /* variantSelector :: */ /* The Unicode code point of the variation selector. */ /* */ /* <Return> */ /* The glyph index. 0~means either `undefined character code', or */ /* `undefined selector code', or `no variation selector cmap */ /* subtable', or `current CharMap is not Unicode'. */ /* */ /* <Note> */ /* If you use FreeType to manipulate the contents of font files */ /* directly, be aware that the glyph index returned by this function */ /* doesn't always correspond to the internal indices used within */ /* the file. This is done to ensure that value~0 always corresponds */ /* to the `missing glyph'. */ /* */ /* This function is only meaningful if */ /* a) the font has a variation selector cmap sub table, */ /* and */ /* b) the current charmap has a Unicode encoding. */ /* */ /* <Since> */ /* 2.3.6 */ /* */ FT_EXPORT( FT_UInt ) FT_Face_GetCharVariantIndex( FT_Face face, FT_ULong charcode, FT_ULong variantSelector ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Face_GetCharVariantIsDefault */ /* */ /* <Description> */ /* Check whether this variant of this Unicode character is the one to */ /* be found in the `cmap'. */ /* */ /* <Input> */ /* face :: */ /* A handle to the source face object. */ /* */ /* charcode :: */ /* The character codepoint in Unicode. */ /* */ /* variantSelector :: */ /* The Unicode codepoint of the variation selector. */ /* */ /* <Return> */ /* 1~if found in the standard (Unicode) cmap, 0~if found in the */ /* variation selector cmap, or -1 if it is not a variant. */ /* */ /* <Note> */ /* This function is only meaningful if the font has a variation */ /* selector cmap subtable. */ /* */ /* <Since> */ /* 2.3.6 */ /* */ FT_EXPORT( FT_Int ) FT_Face_GetCharVariantIsDefault( FT_Face face, FT_ULong charcode, FT_ULong variantSelector ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Face_GetVariantSelectors */ /* */ /* <Description> */ /* Return a zero-terminated list of Unicode variant selectors found */ /* in the font. */ /* */ /* <Input> */ /* face :: */ /* A handle to the source face object. */ /* */ /* <Return> */ /* A pointer to an array of selector code points, or NULL if there is */ /* no valid variant selector cmap subtable. */ /* */ /* <Note> */ /* The last item in the array is~0; the array is owned by the */ /* @FT_Face object but can be overwritten or released on the next */ /* call to a FreeType function. */ /* */ /* <Since> */ /* 2.3.6 */ /* */ FT_EXPORT( FT_UInt32* ) FT_Face_GetVariantSelectors( FT_Face face ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Face_GetVariantsOfChar */ /* */ /* <Description> */ /* Return a zero-terminated list of Unicode variant selectors found */ /* for the specified character code. */ /* */ /* <Input> */ /* face :: */ /* A handle to the source face object. */ /* */ /* charcode :: */ /* The character codepoint in Unicode. */ /* */ /* <Return> */ /* A pointer to an array of variant selector code points which are */ /* active for the given character, or NULL if the corresponding list */ /* is empty. */ /* */ /* <Note> */ /* The last item in the array is~0; the array is owned by the */ /* @FT_Face object but can be overwritten or released on the next */ /* call to a FreeType function. */ /* */ /* <Since> */ /* 2.3.6 */ /* */ FT_EXPORT( FT_UInt32* ) FT_Face_GetVariantsOfChar( FT_Face face, FT_ULong charcode ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Face_GetCharsOfVariant */ /* */ /* <Description> */ /* Return a zero-terminated list of Unicode character codes found for */ /* the specified variant selector. */ /* */ /* <Input> */ /* face :: */ /* A handle to the source face object. */ /* */ /* variantSelector :: */ /* The variant selector code point in Unicode. */ /* */ /* <Return> */ /* A list of all the code points which are specified by this selector */ /* (both default and non-default codes are returned) or NULL if there */ /* is no valid cmap or the variant selector is invalid. */ /* */ /* <Note> */ /* The last item in the array is~0; the array is owned by the */ /* @FT_Face object but can be overwritten or released on the next */ /* call to a FreeType function. */ /* */ /* <Since> */ /* 2.3.6 */ /* */ FT_EXPORT( FT_UInt32* ) FT_Face_GetCharsOfVariant( FT_Face face, FT_ULong variantSelector ); /*************************************************************************/ /* */ /* <Section> */ /* computations */ /* */ /* <Title> */ /* Computations */ /* */ /* <Abstract> */ /* Crunching fixed numbers and vectors. */ /* */ /* <Description> */ /* This section contains various functions used to perform */ /* computations on 16.16 fixed-float numbers or 2d vectors. */ /* */ /* <Order> */ /* FT_MulDiv */ /* FT_MulFix */ /* FT_DivFix */ /* FT_RoundFix */ /* FT_CeilFix */ /* FT_FloorFix */ /* FT_Vector_Transform */ /* FT_Matrix_Multiply */ /* FT_Matrix_Invert */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* <Function> */ /* FT_MulDiv */ /* */ /* <Description> */ /* A very simple function used to perform the computation `(a*b)/c' */ /* with maximum accuracy (it uses a 64-bit intermediate integer */ /* whenever necessary). */ /* */ /* This function isn't necessarily as fast as some processor specific */ /* operations, but is at least completely portable. */ /* */ /* <Input> */ /* a :: The first multiplier. */ /* b :: The second multiplier. */ /* c :: The divisor. */ /* */ /* <Return> */ /* The result of `(a*b)/c'. This function never traps when trying to */ /* divide by zero; it simply returns `MaxInt' or `MinInt' depending */ /* on the signs of `a' and `b'. */ /* */ FT_EXPORT( FT_Long ) FT_MulDiv( FT_Long a, FT_Long b, FT_Long c ); /* */ /* The following #if 0 ... #endif is for the documentation formatter, */ /* hiding the internal `FT_MULFIX_INLINED' macro. */ #if 0 /*************************************************************************/ /* */ /* <Function> */ /* FT_MulFix */ /* */ /* <Description> */ /* A very simple function used to perform the computation */ /* `(a*b)/0x10000' with maximum accuracy. Most of the time this is */ /* used to multiply a given value by a 16.16 fixed float factor. */ /* */ /* <Input> */ /* a :: The first multiplier. */ /* b :: The second multiplier. Use a 16.16 factor here whenever */ /* possible (see note below). */ /* */ /* <Return> */ /* The result of `(a*b)/0x10000'. */ /* */ /* <Note> */ /* This function has been optimized for the case where the absolute */ /* value of `a' is less than 2048, and `b' is a 16.16 scaling factor. */ /* As this happens mainly when scaling from notional units to */ /* fractional pixels in FreeType, it resulted in noticeable speed */ /* improvements between versions 2.x and 1.x. */ /* */ /* As a conclusion, always try to place a 16.16 factor as the */ /* _second_ argument of this function; this can make a great */ /* difference. */ /* */ FT_EXPORT( FT_Long ) FT_MulFix( FT_Long a, FT_Long b ); /* */ #endif #ifdef FT_MULFIX_INLINED #define FT_MulFix( a, b ) FT_MULFIX_INLINED( a, b ) #else FT_EXPORT( FT_Long ) FT_MulFix( FT_Long a, FT_Long b ); #endif /*************************************************************************/ /* */ /* <Function> */ /* FT_DivFix */ /* */ /* <Description> */ /* A very simple function used to perform the computation */ /* `(a*0x10000)/b' with maximum accuracy. Most of the time, this is */ /* used to divide a given value by a 16.16 fixed float factor. */ /* */ /* <Input> */ /* a :: The first multiplier. */ /* b :: The second multiplier. Use a 16.16 factor here whenever */ /* possible (see note below). */ /* */ /* <Return> */ /* The result of `(a*0x10000)/b'. */ /* */ /* <Note> */ /* The optimization for FT_DivFix() is simple: If (a~<<~16) fits in */ /* 32~bits, then the division is computed directly. Otherwise, we */ /* use a specialized version of @FT_MulDiv. */ /* */ FT_EXPORT( FT_Long ) FT_DivFix( FT_Long a, FT_Long b ); /*************************************************************************/ /* */ /* <Function> */ /* FT_RoundFix */ /* */ /* <Description> */ /* A very simple function used to round a 16.16 fixed number. */ /* */ /* <Input> */ /* a :: The number to be rounded. */ /* */ /* <Return> */ /* The result of `(a + 0x8000) & -0x10000'. */ /* */ FT_EXPORT( FT_Fixed ) FT_RoundFix( FT_Fixed a ); /*************************************************************************/ /* */ /* <Function> */ /* FT_CeilFix */ /* */ /* <Description> */ /* A very simple function used to compute the ceiling function of a */ /* 16.16 fixed number. */ /* */ /* <Input> */ /* a :: The number for which the ceiling function is to be computed. */ /* */ /* <Return> */ /* The result of `(a + 0x10000 - 1) & -0x10000'. */ /* */ FT_EXPORT( FT_Fixed ) FT_CeilFix( FT_Fixed a ); /*************************************************************************/ /* */ /* <Function> */ /* FT_FloorFix */ /* */ /* <Description> */ /* A very simple function used to compute the floor function of a */ /* 16.16 fixed number. */ /* */ /* <Input> */ /* a :: The number for which the floor function is to be computed. */ /* */ /* <Return> */ /* The result of `a & -0x10000'. */ /* */ FT_EXPORT( FT_Fixed ) FT_FloorFix( FT_Fixed a ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Vector_Transform */ /* */ /* <Description> */ /* Transform a single vector through a 2x2 matrix. */ /* */ /* <InOut> */ /* vector :: The target vector to transform. */ /* */ /* <Input> */ /* matrix :: A pointer to the source 2x2 matrix. */ /* */ /* <Note> */ /* The result is undefined if either `vector' or `matrix' is invalid. */ /* */ FT_EXPORT( void ) FT_Vector_Transform( FT_Vector* vec, const FT_Matrix* matrix ); /*************************************************************************/ /* */ /* <Section> */ /* version */ /* */ /* <Title> */ /* FreeType Version */ /* */ /* <Abstract> */ /* Functions and macros related to FreeType versions. */ /* */ /* <Description> */ /* Note that those functions and macros are of limited use because */ /* even a new release of FreeType with only documentation changes */ /* increases the version number. */ /* */ /*************************************************************************/ /************************************************************************* * * @enum: * FREETYPE_XXX * * @description: * These three macros identify the FreeType source code version. * Use @FT_Library_Version to access them at runtime. * * @values: * FREETYPE_MAJOR :: The major version number. * FREETYPE_MINOR :: The minor version number. * FREETYPE_PATCH :: The patch level. * * @note: * The version number of FreeType if built as a dynamic link library * with the `libtool' package is _not_ controlled by these three * macros. * */ #define FREETYPE_MAJOR 2 #define FREETYPE_MINOR 4 #define FREETYPE_PATCH 9 /*************************************************************************/ /* */ /* <Function> */ /* FT_Library_Version */ /* */ /* <Description> */ /* Return the version of the FreeType library being used. This is */ /* useful when dynamically linking to the library, since one cannot */ /* use the macros @FREETYPE_MAJOR, @FREETYPE_MINOR, and */ /* @FREETYPE_PATCH. */ /* */ /* <Input> */ /* library :: A source library handle. */ /* */ /* <Output> */ /* amajor :: The major version number. */ /* */ /* aminor :: The minor version number. */ /* */ /* apatch :: The patch version number. */ /* */ /* <Note> */ /* The reason why this function takes a `library' argument is because */ /* certain programs implement library initialization in a custom way */ /* that doesn't use @FT_Init_FreeType. */ /* */ /* In such cases, the library version might not be available before */ /* the library object has been created. */ /* */ FT_EXPORT( void ) FT_Library_Version( FT_Library library, FT_Int *amajor, FT_Int *aminor, FT_Int *apatch ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Face_CheckTrueTypePatents */ /* */ /* <Description> */ /* Parse all bytecode instructions of a TrueType font file to check */ /* whether any of the patented opcodes are used. This is only useful */ /* if you want to be able to use the unpatented hinter with */ /* fonts that do *not* use these opcodes. */ /* */ /* Note that this function parses *all* glyph instructions in the */ /* font file, which may be slow. */ /* */ /* <Input> */ /* face :: A face handle. */ /* */ /* <Return> */ /* 1~if this is a TrueType font that uses one of the patented */ /* opcodes, 0~otherwise. */ /* */ /* <Note> */ /* Since May 2010, TrueType hinting is no longer patented. */ /* */ /* <Since> */ /* 2.3.5 */ /* */ FT_EXPORT( FT_Bool ) FT_Face_CheckTrueTypePatents( FT_Face face ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Face_SetUnpatentedHinting */ /* */ /* <Description> */ /* Enable or disable the unpatented hinter for a given face. */ /* Only enable it if you have determined that the face doesn't */ /* use any patented opcodes (see @FT_Face_CheckTrueTypePatents). */ /* */ /* <Input> */ /* face :: A face handle. */ /* */ /* value :: New boolean setting. */ /* */ /* <Return> */ /* The old setting value. This will always be false if this is not */ /* an SFNT font, or if the unpatented hinter is not compiled in this */ /* instance of the library. */ /* */ /* <Note> */ /* Since May 2010, TrueType hinting is no longer patented. */ /* */ /* <Since> */ /* 2.3.5 */ /* */ FT_EXPORT( FT_Bool ) FT_Face_SetUnpatentedHinting( FT_Face face, FT_Bool value ); /* */ FT_END_HEADER #endif /* __FREETYPE_H__ */ /* END */ /*** End of inlined file: freetype.h ***/ /* * These headers are normally included manually but we add them * here for completeness. * */ /*** Start of inlined file: ftgasp.h ***/ /* */ /* ftgasp.h */ /* */ /* Access of TrueType's `gasp' table (specification). */ /* */ /* Copyright 2007, 2008, 2011 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ #ifndef _FT_GASP_H_ #define _FT_GASP_H_ #ifdef FREETYPE_H #error "freetype.h of FreeType 1 has been loaded!" #error "Please fix the directory search order for header files" #error "so that freetype.h of FreeType 2 is found first." #endif /*************************************************************************** * * @section: * gasp_table * * @title: * Gasp Table * * @abstract: * Retrieving TrueType `gasp' table entries. * * @description: * The function @FT_Get_Gasp can be used to query a TrueType or OpenType * font for specific entries in its `gasp' table, if any. This is * mainly useful when implementing native TrueType hinting with the * bytecode interpreter to duplicate the Windows text rendering results. */ /************************************************************************* * * @enum: * FT_GASP_XXX * * @description: * A list of values and/or bit-flags returned by the @FT_Get_Gasp * function. * * @values: * FT_GASP_NO_TABLE :: * This special value means that there is no GASP table in this face. * It is up to the client to decide what to do. * * FT_GASP_DO_GRIDFIT :: * Grid-fitting and hinting should be performed at the specified ppem. * This *really* means TrueType bytecode interpretation. If this bit * is not set, no hinting gets applied. * * FT_GASP_DO_GRAY :: * Anti-aliased rendering should be performed at the specified ppem. * If not set, do monochrome rendering. * * FT_GASP_SYMMETRIC_SMOOTHING :: * If set, smoothing along multiple axes must be used with ClearType. * * FT_GASP_SYMMETRIC_GRIDFIT :: * Grid-fitting must be used with ClearType's symmetric smoothing. * * @note: * The bit-flags `FT_GASP_DO_GRIDFIT' and `FT_GASP_DO_GRAY' are to be * used for standard font rasterization only. Independently of that, * `FT_GASP_SYMMETRIC_SMOOTHING' and `FT_GASP_SYMMETRIC_GRIDFIT' are to * be used if ClearType is enabled (and `FT_GASP_DO_GRIDFIT' and * `FT_GASP_DO_GRAY' are consequently ignored). * * `ClearType' is Microsoft's implementation of LCD rendering, partly * protected by patents. * * @since: * 2.3.0 */ #define FT_GASP_NO_TABLE -1 #define FT_GASP_DO_GRIDFIT 0x01 #define FT_GASP_DO_GRAY 0x02 #define FT_GASP_SYMMETRIC_SMOOTHING 0x08 #define FT_GASP_SYMMETRIC_GRIDFIT 0x10 /************************************************************************* * * @func: * FT_Get_Gasp * * @description: * Read the `gasp' table from a TrueType or OpenType font file and * return the entry corresponding to a given character pixel size. * * @input: * face :: The source face handle. * ppem :: The vertical character pixel size. * * @return: * Bit flags (see @FT_GASP_XXX), or @FT_GASP_NO_TABLE if there is no * `gasp' table in the face. * * @since: * 2.3.0 */ FT_EXPORT( FT_Int ) FT_Get_Gasp( FT_Face face, FT_UInt ppem ); /* */ #endif /* _FT_GASP_H_ */ /* END */ /*** End of inlined file: ftgasp.h ***/ /*** Start of inlined file: ftglyph.h ***/ /* */ /* ftglyph.h */ /* */ /* FreeType convenience functions to handle glyphs (specification). */ /* */ /* Copyright 1996-2003, 2006, 2008, 2009, 2011 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ /*************************************************************************/ /* */ /* This file contains the definition of several convenience functions */ /* that can be used by client applications to easily retrieve glyph */ /* bitmaps and outlines from a given face. */ /* */ /* These functions should be optional if you are writing a font server */ /* or text layout engine on top of FreeType. However, they are pretty */ /* handy for many other simple uses of the library. */ /* */ /*************************************************************************/ #ifndef __FTGLYPH_H__ #define __FTGLYPH_H__ #ifdef FREETYPE_H #error "freetype.h of FreeType 1 has been loaded!" #error "Please fix the directory search order for header files" #error "so that freetype.h of FreeType 2 is found first." #endif FT_BEGIN_HEADER /*************************************************************************/ /* */ /* <Section> */ /* glyph_management */ /* */ /* <Title> */ /* Glyph Management */ /* */ /* <Abstract> */ /* Generic interface to manage individual glyph data. */ /* */ /* <Description> */ /* This section contains definitions used to manage glyph data */ /* through generic FT_Glyph objects. Each of them can contain a */ /* bitmap, a vector outline, or even images in other formats. */ /* */ /*************************************************************************/ /* forward declaration to a private type */ typedef struct FT_Glyph_Class_ FT_Glyph_Class; /*************************************************************************/ /* */ /* <Type> */ /* FT_Glyph */ /* */ /* <Description> */ /* Handle to an object used to model generic glyph images. It is a */ /* pointer to the @FT_GlyphRec structure and can contain a glyph */ /* bitmap or pointer. */ /* */ /* <Note> */ /* Glyph objects are not owned by the library. You must thus release */ /* them manually (through @FT_Done_Glyph) _before_ calling */ /* @FT_Done_FreeType. */ /* */ typedef struct FT_GlyphRec_* FT_Glyph; /*************************************************************************/ /* */ /* <Struct> */ /* FT_GlyphRec */ /* */ /* <Description> */ /* The root glyph structure contains a given glyph image plus its */ /* advance width in 16.16 fixed float format. */ /* */ /* <Fields> */ /* library :: A handle to the FreeType library object. */ /* */ /* clazz :: A pointer to the glyph's class. Private. */ /* */ /* format :: The format of the glyph's image. */ /* */ /* advance :: A 16.16 vector that gives the glyph's advance width. */ /* */ typedef struct FT_GlyphRec_ { FT_Library library; const FT_Glyph_Class* clazz; FT_Glyph_Format format; FT_Vector advance; } FT_GlyphRec; /*************************************************************************/ /* */ /* <Type> */ /* FT_BitmapGlyph */ /* */ /* <Description> */ /* A handle to an object used to model a bitmap glyph image. This is */ /* a sub-class of @FT_Glyph, and a pointer to @FT_BitmapGlyphRec. */ /* */ typedef struct FT_BitmapGlyphRec_* FT_BitmapGlyph; /*************************************************************************/ /* */ /* <Struct> */ /* FT_BitmapGlyphRec */ /* */ /* <Description> */ /* A structure used for bitmap glyph images. This really is a */ /* `sub-class' of @FT_GlyphRec. */ /* */ /* <Fields> */ /* root :: The root @FT_Glyph fields. */ /* */ /* left :: The left-side bearing, i.e., the horizontal distance */ /* from the current pen position to the left border of the */ /* glyph bitmap. */ /* */ /* top :: The top-side bearing, i.e., the vertical distance from */ /* the current pen position to the top border of the glyph */ /* bitmap. This distance is positive for upwards~y! */ /* */ /* bitmap :: A descriptor for the bitmap. */ /* */ /* <Note> */ /* You can typecast an @FT_Glyph to @FT_BitmapGlyph if you have */ /* `glyph->format == FT_GLYPH_FORMAT_BITMAP'. This lets you access */ /* the bitmap's contents easily. */ /* */ /* The corresponding pixel buffer is always owned by @FT_BitmapGlyph */ /* and is thus created and destroyed with it. */ /* */ typedef struct FT_BitmapGlyphRec_ { FT_GlyphRec root; FT_Int left; FT_Int top; FT_Bitmap bitmap; } FT_BitmapGlyphRec; /*************************************************************************/ /* */ /* <Type> */ /* FT_OutlineGlyph */ /* */ /* <Description> */ /* A handle to an object used to model an outline glyph image. This */ /* is a sub-class of @FT_Glyph, and a pointer to @FT_OutlineGlyphRec. */ /* */ typedef struct FT_OutlineGlyphRec_* FT_OutlineGlyph; /*************************************************************************/ /* */ /* <Struct> */ /* FT_OutlineGlyphRec */ /* */ /* <Description> */ /* A structure used for outline (vectorial) glyph images. This */ /* really is a `sub-class' of @FT_GlyphRec. */ /* */ /* <Fields> */ /* root :: The root @FT_Glyph fields. */ /* */ /* outline :: A descriptor for the outline. */ /* */ /* <Note> */ /* You can typecast an @FT_Glyph to @FT_OutlineGlyph if you have */ /* `glyph->format == FT_GLYPH_FORMAT_OUTLINE'. This lets you access */ /* the outline's content easily. */ /* */ /* As the outline is extracted from a glyph slot, its coordinates are */ /* expressed normally in 26.6 pixels, unless the flag */ /* @FT_LOAD_NO_SCALE was used in @FT_Load_Glyph() or @FT_Load_Char(). */ /* */ /* The outline's tables are always owned by the object and are */ /* destroyed with it. */ /* */ typedef struct FT_OutlineGlyphRec_ { FT_GlyphRec root; FT_Outline outline; } FT_OutlineGlyphRec; /*************************************************************************/ /* */ /* <Function> */ /* FT_Get_Glyph */ /* */ /* <Description> */ /* A function used to extract a glyph image from a slot. Note that */ /* the created @FT_Glyph object must be released with @FT_Done_Glyph. */ /* */ /* <Input> */ /* slot :: A handle to the source glyph slot. */ /* */ /* <Output> */ /* aglyph :: A handle to the glyph object. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ FT_EXPORT( FT_Error ) FT_Get_Glyph( FT_GlyphSlot slot, FT_Glyph *aglyph ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Glyph_Copy */ /* */ /* <Description> */ /* A function used to copy a glyph image. Note that the created */ /* @FT_Glyph object must be released with @FT_Done_Glyph. */ /* */ /* <Input> */ /* source :: A handle to the source glyph object. */ /* */ /* <Output> */ /* target :: A handle to the target glyph object. 0~in case of */ /* error. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ FT_EXPORT( FT_Error ) FT_Glyph_Copy( FT_Glyph source, FT_Glyph *target ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Glyph_Transform */ /* */ /* <Description> */ /* Transform a glyph image if its format is scalable. */ /* */ /* <InOut> */ /* glyph :: A handle to the target glyph object. */ /* */ /* <Input> */ /* matrix :: A pointer to a 2x2 matrix to apply. */ /* */ /* delta :: A pointer to a 2d vector to apply. Coordinates are */ /* expressed in 1/64th of a pixel. */ /* */ /* <Return> */ /* FreeType error code (if not 0, the glyph format is not scalable). */ /* */ /* <Note> */ /* The 2x2 transformation matrix is also applied to the glyph's */ /* advance vector. */ /* */ FT_EXPORT( FT_Error ) FT_Glyph_Transform( FT_Glyph glyph, FT_Matrix* matrix, FT_Vector* delta ); /*************************************************************************/ /* */ /* <Enum> */ /* FT_Glyph_BBox_Mode */ /* */ /* <Description> */ /* The mode how the values of @FT_Glyph_Get_CBox are returned. */ /* */ /* <Values> */ /* FT_GLYPH_BBOX_UNSCALED :: */ /* Return unscaled font units. */ /* */ /* FT_GLYPH_BBOX_SUBPIXELS :: */ /* Return unfitted 26.6 coordinates. */ /* */ /* FT_GLYPH_BBOX_GRIDFIT :: */ /* Return grid-fitted 26.6 coordinates. */ /* */ /* FT_GLYPH_BBOX_TRUNCATE :: */ /* Return coordinates in integer pixels. */ /* */ /* FT_GLYPH_BBOX_PIXELS :: */ /* Return grid-fitted pixel coordinates. */ /* */ typedef enum FT_Glyph_BBox_Mode_ { FT_GLYPH_BBOX_UNSCALED = 0, FT_GLYPH_BBOX_SUBPIXELS = 0, FT_GLYPH_BBOX_GRIDFIT = 1, FT_GLYPH_BBOX_TRUNCATE = 2, FT_GLYPH_BBOX_PIXELS = 3 } FT_Glyph_BBox_Mode; /*************************************************************************/ /* */ /* <Enum> */ /* ft_glyph_bbox_xxx */ /* */ /* <Description> */ /* These constants are deprecated. Use the corresponding */ /* @FT_Glyph_BBox_Mode values instead. */ /* */ /* <Values> */ /* ft_glyph_bbox_unscaled :: See @FT_GLYPH_BBOX_UNSCALED. */ /* ft_glyph_bbox_subpixels :: See @FT_GLYPH_BBOX_SUBPIXELS. */ /* ft_glyph_bbox_gridfit :: See @FT_GLYPH_BBOX_GRIDFIT. */ /* ft_glyph_bbox_truncate :: See @FT_GLYPH_BBOX_TRUNCATE. */ /* ft_glyph_bbox_pixels :: See @FT_GLYPH_BBOX_PIXELS. */ /* */ #define ft_glyph_bbox_unscaled FT_GLYPH_BBOX_UNSCALED #define ft_glyph_bbox_subpixels FT_GLYPH_BBOX_SUBPIXELS #define ft_glyph_bbox_gridfit FT_GLYPH_BBOX_GRIDFIT #define ft_glyph_bbox_truncate FT_GLYPH_BBOX_TRUNCATE #define ft_glyph_bbox_pixels FT_GLYPH_BBOX_PIXELS /*************************************************************************/ /* */ /* <Function> */ /* FT_Glyph_Get_CBox */ /* */ /* <Description> */ /* Return a glyph's `control box'. The control box encloses all the */ /* outline's points, including Bézier control points. Though it */ /* coincides with the exact bounding box for most glyphs, it can be */ /* slightly larger in some situations (like when rotating an outline */ /* which contains Bézier outside arcs). */ /* */ /* Computing the control box is very fast, while getting the bounding */ /* box can take much more time as it needs to walk over all segments */ /* and arcs in the outline. To get the latter, you can use the */ /* `ftbbox' component which is dedicated to this single task. */ /* */ /* <Input> */ /* glyph :: A handle to the source glyph object. */ /* */ /* mode :: The mode which indicates how to interpret the returned */ /* bounding box values. */ /* */ /* <Output> */ /* acbox :: The glyph coordinate bounding box. Coordinates are */ /* expressed in 1/64th of pixels if it is grid-fitted. */ /* */ /* <Note> */ /* Coordinates are relative to the glyph origin, using the y~upwards */ /* convention. */ /* */ /* If the glyph has been loaded with @FT_LOAD_NO_SCALE, `bbox_mode' */ /* must be set to @FT_GLYPH_BBOX_UNSCALED to get unscaled font */ /* units in 26.6 pixel format. The value @FT_GLYPH_BBOX_SUBPIXELS */ /* is another name for this constant. */ /* */ /* If the font is tricky and the glyph has been loaded with */ /* @FT_LOAD_NO_SCALE, the resulting CBox is meaningless. To get */ /* reasonable values for the CBox it is necessary to load the glyph */ /* at a large ppem value (so that the hinting instructions can */ /* properly shift and scale the subglyphs), then extracting the CBox */ /* which can be eventually converted back to font units. */ /* */ /* Note that the maximum coordinates are exclusive, which means that */ /* one can compute the width and height of the glyph image (be it in */ /* integer or 26.6 pixels) as: */ /* */ /* { */ /* width = bbox.xMax - bbox.xMin; */ /* height = bbox.yMax - bbox.yMin; */ /* } */ /* */ /* Note also that for 26.6 coordinates, if `bbox_mode' is set to */ /* @FT_GLYPH_BBOX_GRIDFIT, the coordinates will also be grid-fitted, */ /* which corresponds to: */ /* */ /* { */ /* bbox.xMin = FLOOR(bbox.xMin); */ /* bbox.yMin = FLOOR(bbox.yMin); */ /* bbox.xMax = CEILING(bbox.xMax); */ /* bbox.yMax = CEILING(bbox.yMax); */ /* } */ /* */ /* To get the bbox in pixel coordinates, set `bbox_mode' to */ /* @FT_GLYPH_BBOX_TRUNCATE. */ /* */ /* To get the bbox in grid-fitted pixel coordinates, set `bbox_mode' */ /* to @FT_GLYPH_BBOX_PIXELS. */ /* */ FT_EXPORT( void ) FT_Glyph_Get_CBox( FT_Glyph glyph, FT_UInt bbox_mode, FT_BBox *acbox ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Glyph_To_Bitmap */ /* */ /* <Description> */ /* Convert a given glyph object to a bitmap glyph object. */ /* */ /* <InOut> */ /* the_glyph :: A pointer to a handle to the target glyph. */ /* */ /* <Input> */ /* render_mode :: An enumeration that describes how the data is */ /* rendered. */ /* */ /* origin :: A pointer to a vector used to translate the glyph */ /* image before rendering. Can be~0 (if no */ /* translation). The origin is expressed in */ /* 26.6 pixels. */ /* */ /* destroy :: A boolean that indicates that the original glyph */ /* image should be destroyed by this function. It is */ /* never destroyed in case of error. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* This function does nothing if the glyph format isn't scalable. */ /* */ /* The glyph image is translated with the `origin' vector before */ /* rendering. */ /* */ /* The first parameter is a pointer to an @FT_Glyph handle, that will */ /* be _replaced_ by this function (with newly allocated data). */ /* Typically, you would use (omitting error handling): */ /* */ /* */ /* { */ /* FT_Glyph glyph; */ /* FT_BitmapGlyph glyph_bitmap; */ /* */ /* */ /* // load glyph */ /* error = FT_Load_Char( face, glyph_index, FT_LOAD_DEFAUT ); */ /* */ /* // extract glyph image */ /* error = FT_Get_Glyph( face->glyph, &glyph ); */ /* */ /* // convert to a bitmap (default render mode + destroying old) */ /* if ( glyph->format != FT_GLYPH_FORMAT_BITMAP ) */ /* { */ /* error = FT_Glyph_To_Bitmap( &glyph, FT_RENDER_MODE_NORMAL, */ /* 0, 1 ); */ /* if ( error ) // `glyph' unchanged */ /* ... */ /* } */ /* */ /* // access bitmap content by typecasting */ /* glyph_bitmap = (FT_BitmapGlyph)glyph; */ /* */ /* // do funny stuff with it, like blitting/drawing */ /* ... */ /* */ /* // discard glyph image (bitmap or not) */ /* FT_Done_Glyph( glyph ); */ /* } */ /* */ /* */ /* Here another example, again without error handling: */ /* */ /* */ /* { */ /* FT_Glyph glyphs[MAX_GLYPHS] */ /* */ /* */ /* ... */ /* */ /* for ( idx = 0; i < MAX_GLYPHS; i++ ) */ /* error = FT_Load_Glyph( face, idx, FT_LOAD_DEFAULT ) || */ /* FT_Get_Glyph ( face->glyph, &glyph[idx] ); */ /* */ /* ... */ /* */ /* for ( idx = 0; i < MAX_GLYPHS; i++ ) */ /* { */ /* FT_Glyph bitmap = glyphs[idx]; */ /* */ /* */ /* ... */ /* */ /* // after this call, `bitmap' no longer points into */ /* // the `glyphs' array (and the old value isn't destroyed) */ /* FT_Glyph_To_Bitmap( &bitmap, FT_RENDER_MODE_MONO, 0, 0 ); */ /* */ /* ... */ /* */ /* FT_Done_Glyph( bitmap ); */ /* } */ /* */ /* ... */ /* */ /* for ( idx = 0; i < MAX_GLYPHS; i++ ) */ /* FT_Done_Glyph( glyphs[idx] ); */ /* } */ /* */ FT_EXPORT( FT_Error ) FT_Glyph_To_Bitmap( FT_Glyph* the_glyph, FT_Render_Mode render_mode, FT_Vector* origin, FT_Bool destroy ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Done_Glyph */ /* */ /* <Description> */ /* Destroy a given glyph. */ /* */ /* <Input> */ /* glyph :: A handle to the target glyph object. */ /* */ FT_EXPORT( void ) FT_Done_Glyph( FT_Glyph glyph ); /* */ /* other helpful functions */ /*************************************************************************/ /* */ /* <Section> */ /* computations */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* <Function> */ /* FT_Matrix_Multiply */ /* */ /* <Description> */ /* Perform the matrix operation `b = a*b'. */ /* */ /* <Input> */ /* a :: A pointer to matrix `a'. */ /* */ /* <InOut> */ /* b :: A pointer to matrix `b'. */ /* */ /* <Note> */ /* The result is undefined if either `a' or `b' is zero. */ /* */ FT_EXPORT( void ) FT_Matrix_Multiply( const FT_Matrix* a, FT_Matrix* b ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Matrix_Invert */ /* */ /* <Description> */ /* Invert a 2x2 matrix. Return an error if it can't be inverted. */ /* */ /* <InOut> */ /* matrix :: A pointer to the target matrix. Remains untouched in */ /* case of error. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ FT_EXPORT( FT_Error ) FT_Matrix_Invert( FT_Matrix* matrix ); /* */ FT_END_HEADER #endif /* __FTGLYPH_H__ */ /* END */ /* Local Variables: */ /* coding: utf-8 */ /* End: */ /*** End of inlined file: ftglyph.h ***/ /*** Start of inlined file: ftoutln.h ***/ /* */ /* ftoutln.h */ /* */ /* Support for the FT_Outline type used to store glyph shapes of */ /* most scalable font formats (specification). */ /* */ /* Copyright 1996-2003, 2005-2012 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ #ifndef __FTOUTLN_H__ #define __FTOUTLN_H__ #ifdef FREETYPE_H #error "freetype.h of FreeType 1 has been loaded!" #error "Please fix the directory search order for header files" #error "so that freetype.h of FreeType 2 is found first." #endif FT_BEGIN_HEADER /*************************************************************************/ /* */ /* <Section> */ /* outline_processing */ /* */ /* <Title> */ /* Outline Processing */ /* */ /* <Abstract> */ /* Functions to create, transform, and render vectorial glyph images. */ /* */ /* <Description> */ /* This section contains routines used to create and destroy scalable */ /* glyph images known as `outlines'. These can also be measured, */ /* transformed, and converted into bitmaps and pixmaps. */ /* */ /* <Order> */ /* FT_Outline */ /* FT_OUTLINE_FLAGS */ /* FT_Outline_New */ /* FT_Outline_Done */ /* FT_Outline_Copy */ /* FT_Outline_Translate */ /* FT_Outline_Transform */ /* FT_Outline_Embolden */ /* FT_Outline_Reverse */ /* FT_Outline_Check */ /* */ /* FT_Outline_Get_CBox */ /* FT_Outline_Get_BBox */ /* */ /* FT_Outline_Get_Bitmap */ /* FT_Outline_Render */ /* */ /* FT_Outline_Decompose */ /* FT_Outline_Funcs */ /* FT_Outline_MoveTo_Func */ /* FT_Outline_LineTo_Func */ /* FT_Outline_ConicTo_Func */ /* FT_Outline_CubicTo_Func */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* <Function> */ /* FT_Outline_Decompose */ /* */ /* <Description> */ /* Walk over an outline's structure to decompose it into individual */ /* segments and Bézier arcs. This function also emits `move to' */ /* operations to indicate the start of new contours in the outline. */ /* */ /* <Input> */ /* outline :: A pointer to the source target. */ /* */ /* func_interface :: A table of `emitters', i.e., function pointers */ /* called during decomposition to indicate path */ /* operations. */ /* */ /* <InOut> */ /* user :: A typeless pointer which is passed to each */ /* emitter during the decomposition. It can be */ /* used to store the state during the */ /* decomposition. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ FT_EXPORT( FT_Error ) FT_Outline_Decompose( FT_Outline* outline, const FT_Outline_Funcs* func_interface, void* user ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Outline_New */ /* */ /* <Description> */ /* Create a new outline of a given size. */ /* */ /* <Input> */ /* library :: A handle to the library object from where the */ /* outline is allocated. Note however that the new */ /* outline will *not* necessarily be *freed*, when */ /* destroying the library, by @FT_Done_FreeType. */ /* */ /* numPoints :: The maximum number of points within the outline. */ /* */ /* numContours :: The maximum number of contours within the outline. */ /* */ /* <Output> */ /* anoutline :: A handle to the new outline. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* The reason why this function takes a `library' parameter is simply */ /* to use the library's memory allocator. */ /* */ FT_EXPORT( FT_Error ) FT_Outline_New( FT_Library library, FT_UInt numPoints, FT_Int numContours, FT_Outline *anoutline ); FT_EXPORT( FT_Error ) FT_Outline_New_Internal( FT_Memory memory, FT_UInt numPoints, FT_Int numContours, FT_Outline *anoutline ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Outline_Done */ /* */ /* <Description> */ /* Destroy an outline created with @FT_Outline_New. */ /* */ /* <Input> */ /* library :: A handle of the library object used to allocate the */ /* outline. */ /* */ /* outline :: A pointer to the outline object to be discarded. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* If the outline's `owner' field is not set, only the outline */ /* descriptor will be released. */ /* */ /* The reason why this function takes an `library' parameter is */ /* simply to use ft_mem_free(). */ /* */ FT_EXPORT( FT_Error ) FT_Outline_Done( FT_Library library, FT_Outline* outline ); FT_EXPORT( FT_Error ) FT_Outline_Done_Internal( FT_Memory memory, FT_Outline* outline ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Outline_Check */ /* */ /* <Description> */ /* Check the contents of an outline descriptor. */ /* */ /* <Input> */ /* outline :: A handle to a source outline. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ FT_EXPORT( FT_Error ) FT_Outline_Check( FT_Outline* outline ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Outline_Get_CBox */ /* */ /* <Description> */ /* Return an outline's `control box'. The control box encloses all */ /* the outline's points, including Bézier control points. Though it */ /* coincides with the exact bounding box for most glyphs, it can be */ /* slightly larger in some situations (like when rotating an outline */ /* which contains Bézier outside arcs). */ /* */ /* Computing the control box is very fast, while getting the bounding */ /* box can take much more time as it needs to walk over all segments */ /* and arcs in the outline. To get the latter, you can use the */ /* `ftbbox' component which is dedicated to this single task. */ /* */ /* <Input> */ /* outline :: A pointer to the source outline descriptor. */ /* */ /* <Output> */ /* acbox :: The outline's control box. */ /* */ /* <Note> */ /* See @FT_Glyph_Get_CBox for a discussion of tricky fonts. */ /* */ FT_EXPORT( void ) FT_Outline_Get_CBox( const FT_Outline* outline, FT_BBox *acbox ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Outline_Translate */ /* */ /* <Description> */ /* Apply a simple translation to the points of an outline. */ /* */ /* <InOut> */ /* outline :: A pointer to the target outline descriptor. */ /* */ /* <Input> */ /* xOffset :: The horizontal offset. */ /* */ /* yOffset :: The vertical offset. */ /* */ FT_EXPORT( void ) FT_Outline_Translate( const FT_Outline* outline, FT_Pos xOffset, FT_Pos yOffset ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Outline_Copy */ /* */ /* <Description> */ /* Copy an outline into another one. Both objects must have the */ /* same sizes (number of points & number of contours) when this */ /* function is called. */ /* */ /* <Input> */ /* source :: A handle to the source outline. */ /* */ /* <Output> */ /* target :: A handle to the target outline. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ FT_EXPORT( FT_Error ) FT_Outline_Copy( const FT_Outline* source, FT_Outline *target ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Outline_Transform */ /* */ /* <Description> */ /* Apply a simple 2x2 matrix to all of an outline's points. Useful */ /* for applying rotations, slanting, flipping, etc. */ /* */ /* <InOut> */ /* outline :: A pointer to the target outline descriptor. */ /* */ /* <Input> */ /* matrix :: A pointer to the transformation matrix. */ /* */ /* <Note> */ /* You can use @FT_Outline_Translate if you need to translate the */ /* outline's points. */ /* */ FT_EXPORT( void ) FT_Outline_Transform( const FT_Outline* outline, const FT_Matrix* matrix ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Outline_Embolden */ /* */ /* <Description> */ /* Embolden an outline. The new outline will be at most 4~times */ /* `strength' pixels wider and higher. You may think of the left and */ /* bottom borders as unchanged. */ /* */ /* Negative `strength' values to reduce the outline thickness are */ /* possible also. */ /* */ /* <InOut> */ /* outline :: A handle to the target outline. */ /* */ /* <Input> */ /* strength :: How strong the glyph is emboldened. Expressed in */ /* 26.6 pixel format. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* The used algorithm to increase or decrease the thickness of the */ /* glyph doesn't change the number of points; this means that certain */ /* situations like acute angles or intersections are sometimes */ /* handled incorrectly. */ /* */ /* If you need `better' metrics values you should call */ /* @FT_Outline_Get_CBox or @FT_Outline_Get_BBox. */ /* */ /* Example call: */ /* */ /* { */ /* FT_Load_Glyph( face, index, FT_LOAD_DEFAULT ); */ /* if ( face->slot->format == FT_GLYPH_FORMAT_OUTLINE ) */ /* FT_Outline_Embolden( &face->slot->outline, strength ); */ /* } */ /* */ FT_EXPORT( FT_Error ) FT_Outline_Embolden( FT_Outline* outline, FT_Pos strength ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Outline_Reverse */ /* */ /* <Description> */ /* Reverse the drawing direction of an outline. This is used to */ /* ensure consistent fill conventions for mirrored glyphs. */ /* */ /* <InOut> */ /* outline :: A pointer to the target outline descriptor. */ /* */ /* <Note> */ /* This function toggles the bit flag @FT_OUTLINE_REVERSE_FILL in */ /* the outline's `flags' field. */ /* */ /* It shouldn't be used by a normal client application, unless it */ /* knows what it is doing. */ /* */ FT_EXPORT( void ) FT_Outline_Reverse( FT_Outline* outline ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Outline_Get_Bitmap */ /* */ /* <Description> */ /* Render an outline within a bitmap. The outline's image is simply */ /* OR-ed to the target bitmap. */ /* */ /* <Input> */ /* library :: A handle to a FreeType library object. */ /* */ /* outline :: A pointer to the source outline descriptor. */ /* */ /* <InOut> */ /* abitmap :: A pointer to the target bitmap descriptor. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* This function does NOT CREATE the bitmap, it only renders an */ /* outline image within the one you pass to it! Consequently, the */ /* various fields in `abitmap' should be set accordingly. */ /* */ /* It will use the raster corresponding to the default glyph format. */ /* */ /* The value of the `num_grays' field in `abitmap' is ignored. If */ /* you select the gray-level rasterizer, and you want less than 256 */ /* gray levels, you have to use @FT_Outline_Render directly. */ /* */ FT_EXPORT( FT_Error ) FT_Outline_Get_Bitmap( FT_Library library, FT_Outline* outline, const FT_Bitmap *abitmap ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Outline_Render */ /* */ /* <Description> */ /* Render an outline within a bitmap using the current scan-convert. */ /* This function uses an @FT_Raster_Params structure as an argument, */ /* allowing advanced features like direct composition, translucency, */ /* etc. */ /* */ /* <Input> */ /* library :: A handle to a FreeType library object. */ /* */ /* outline :: A pointer to the source outline descriptor. */ /* */ /* <InOut> */ /* params :: A pointer to an @FT_Raster_Params structure used to */ /* describe the rendering operation. */ /* */ /* <Return> */ /* FreeType error code. 0~means success. */ /* */ /* <Note> */ /* You should know what you are doing and how @FT_Raster_Params works */ /* to use this function. */ /* */ /* The field `params.source' will be set to `outline' before the scan */ /* converter is called, which means that the value you give to it is */ /* actually ignored. */ /* */ /* The gray-level rasterizer always uses 256 gray levels. If you */ /* want less gray levels, you have to provide your own span callback. */ /* See the @FT_RASTER_FLAG_DIRECT value of the `flags' field in the */ /* @FT_Raster_Params structure for more details. */ /* */ FT_EXPORT( FT_Error ) FT_Outline_Render( FT_Library library, FT_Outline* outline, FT_Raster_Params* params ); /************************************************************************** * * @enum: * FT_Orientation * * @description: * A list of values used to describe an outline's contour orientation. * * The TrueType and PostScript specifications use different conventions * to determine whether outline contours should be filled or unfilled. * * @values: * FT_ORIENTATION_TRUETYPE :: * According to the TrueType specification, clockwise contours must * be filled, and counter-clockwise ones must be unfilled. * * FT_ORIENTATION_POSTSCRIPT :: * According to the PostScript specification, counter-clockwise contours * must be filled, and clockwise ones must be unfilled. * * FT_ORIENTATION_FILL_RIGHT :: * This is identical to @FT_ORIENTATION_TRUETYPE, but is used to * remember that in TrueType, everything that is to the right of * the drawing direction of a contour must be filled. * * FT_ORIENTATION_FILL_LEFT :: * This is identical to @FT_ORIENTATION_POSTSCRIPT, but is used to * remember that in PostScript, everything that is to the left of * the drawing direction of a contour must be filled. * * FT_ORIENTATION_NONE :: * The orientation cannot be determined. That is, different parts of * the glyph have different orientation. * */ typedef enum FT_Orientation_ { FT_ORIENTATION_TRUETYPE = 0, FT_ORIENTATION_POSTSCRIPT = 1, FT_ORIENTATION_FILL_RIGHT = FT_ORIENTATION_TRUETYPE, FT_ORIENTATION_FILL_LEFT = FT_ORIENTATION_POSTSCRIPT, FT_ORIENTATION_NONE } FT_Orientation; /************************************************************************** * * @function: * FT_Outline_Get_Orientation * * @description: * This function analyzes a glyph outline and tries to compute its * fill orientation (see @FT_Orientation). This is done by computing * the direction of each global horizontal and/or vertical extrema * within the outline. * * Note that this will return @FT_ORIENTATION_TRUETYPE for empty * outlines. * * @input: * outline :: * A handle to the source outline. * * @return: * The orientation. * */ FT_EXPORT( FT_Orientation ) FT_Outline_Get_Orientation( FT_Outline* outline ); /* */ FT_END_HEADER #endif /* __FTOUTLN_H__ */ /* END */ /* Local Variables: */ /* coding: utf-8 */ /* End: */ /*** End of inlined file: ftoutln.h ***/ #ifdef _MSC_VER #pragma pop_macro("_CRT_SECURE_NO_WARNINGS") #endif