freetype2/include/freetype/fttypes.h

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/***************************************************************************/
/* */
/* fttypes.h */
/* */
/* FreeType simple types definitions (specification only). */
/* */
/* Copyright 1996-2001 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__
#include <ft2build.h>
#include FT_SYSTEM_H
#include FT_IMAGE_H
#include <stddef.h>
FT_BEGIN_HEADER
/*************************************************************************/
/* */
/* <Section> */
/* basic_types */
/* */
/* <Title> */
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/* 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 */
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/* font-specific structures are defined in a different section. */
/* */
/* <Order> */
/* FT_Byte */
/* FT_Char */
/* FT_Int */
/* FT_UInt */
/* FT_Short */
/* FT_UShort */
/* FT_Long */
/* FT_ULong */
/* FT_Bool */
/* FT_Offset */
/* FT_PtrDist */
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/* FT_String */
/* FT_Error */
/* FT_Fixed */
/* FT_Pointer */
/* FT_Pos */
/* FT_Vector */
/* FT_BBox */
/* FT_Matrix */
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/* 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. */
/* */
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_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 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 scales */
/* 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> */
* builds/win32/detekt.mk: Fix .PHONY target for Intel compiler. Renamed "ftnames.h" to "ftsnames.h", and FT_NAMES_H to FT_SFNT_NAMES_H. * docs/docmaker.py: Added generation of INDEX link in table of contents. * INSTALL, docs/BUILD: Updated documentation to indicate that the compilation process has changed slightly (no more `src' required in * builds/*/*-def.mk: Changed the objects directory from "obj" to "objs". * include/freetype/config/ftheader.h: Removed obsolete macros like FT_SOURCE_FILE, etc. and added cache-specific macro definitions that were previously defined in <freetype/ftcache.h>. Added comments to be included in a new API Reference section. * src/*/*: Removed the use of FT_SOURCE_FILE, etc. Now, each component needs to add its own directory to the include path at compile time. Modified all "rules.mk" and "descrip.mms" accordingly. * src/cid/cidobjs.c, src/cid/cidload.c, src/pcf/pcfread.c, src/type1/t1load.c, src/type1/t1objs.c: Added a few casts to remove compiler warnings in pedantic modes. * include/config/ft2build.h, include/config/ftheader.h: The file top-level <ft2build.h>. * include/config/ftheader.h: Added new section describing the #include macros. the Type 2 glyph charstring (used by conversion programs). * docs/docmaker.py: Added cross-references generation as well as seac emulation provided by the Type 2 endchar operator. * src/cid/cidafm.c, src/cid/cidafm.h: removed un-needed files, Added support for clipped direct rendering in the smooth renderer. * src/cff/t2objs.c (T2_Init_Face): For pure CFF fonts, set
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/* 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> */
* builds/win32/detekt.mk: Fix .PHONY target for Intel compiler. Renamed "ftnames.h" to "ftsnames.h", and FT_NAMES_H to FT_SFNT_NAMES_H. * docs/docmaker.py: Added generation of INDEX link in table of contents. * INSTALL, docs/BUILD: Updated documentation to indicate that the compilation process has changed slightly (no more `src' required in * builds/*/*-def.mk: Changed the objects directory from "obj" to "objs". * include/freetype/config/ftheader.h: Removed obsolete macros like FT_SOURCE_FILE, etc. and added cache-specific macro definitions that were previously defined in <freetype/ftcache.h>. Added comments to be included in a new API Reference section. * src/*/*: Removed the use of FT_SOURCE_FILE, etc. Now, each component needs to add its own directory to the include path at compile time. Modified all "rules.mk" and "descrip.mms" accordingly. * src/cid/cidobjs.c, src/cid/cidload.c, src/pcf/pcfread.c, src/type1/t1load.c, src/type1/t1objs.c: Added a few casts to remove compiler warnings in pedantic modes. * include/config/ft2build.h, include/config/ftheader.h: The file top-level <ft2build.h>. * include/config/ftheader.h: Added new section describing the #include macros. the Type 2 glyph charstring (used by conversion programs). * docs/docmaker.py: Added cross-references generation as well as seac emulation provided by the Type 2 endchar operator. * src/cid/cidafm.c, src/cid/cidafm.h: removed un-needed files, Added support for clipped direct rendering in the smooth renderer. * src/cff/t2objs.c (T2_Init_Face): For pure CFF fonts, set
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/* 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 size_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;
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/*************************************************************************/
/* */
/* <FuncType> */
/* FT_Generic_Finalizer */
/* */
/* <Description> */
/* Describes 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. */
/* */
/* Most 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. */
/* */
#define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
( ( (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 a */
/* FT_List record (see FT_ListRec). As its name suggests, a */
/* 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) */
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#define FT_ERROR_BASE( x ) ( (x) & 0xFF )
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/* 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 */