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InForm/InForm/FreeTypeAmalgam.h
George McGinn fc4d90c25e Update InForm to Install/Run on either QB64 or QB64pe #2 
Updates to v1.4.0 of InForm:
	* Runs with either QB64 or QB64/PE
	* Removed the defunct auto-update, develoer update & installer
	* InForm no longer internally compiles UiEditorPreview (All compiles done at setup time)
	* InForm now runs in the InForm directory instead of the QB64 directory
	* InForm is aware of which QB64 is installed (QB64 or QB64PE)
	* Will work with either the new Messagebox dialog (PE v.3.4.0) or older messagebox dialog.
	* Ensure library continues to work even if QB64-PE font library changes wink
        * Changed the setup scripts
2022-11-01 19:31:18 -04:00

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/***************************************************************************/
/* */
/* 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__
/*@***********************************************************************/
/* */
/* <Macro> */
/* FT_BEGIN_HEADER */
/* */
/* <Description> */
/* 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
/*@***********************************************************************/
/* */
/* <Macro> */
/* FT_END_HEADER */
/* */
/* <Description> */
/* 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. */
/* */
/*************************************************************************/
/*************************************************************************/
/* */
/* <Section> */
/* header_file_macros */
/* */
/* <Title> */
/* 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 = &parameter; */
/* */
/* 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
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