TTFFile.h

Go to the documentation of this file.

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Project: uLib - User mode utility library.
// Module: TrueType Font files (partial declaration).
// Author: Copyright (c) Love Nystrom
// License: NNOSL (BSD descendant, see NNOSL.txt in the base directory).
// Ref: ttch02.doc (Microsoft Typography)
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

#ifndef __TTFFile_h_incl__
#define __TTFFile_h_incl__

#include <uLib/Common.h>

//==---------------------------------------------------------------------------
//==---------------------------------------------------------------------------
//==---------------------------------------------------------------------------

#pragma pack( push,2 )

typedef struct TTFDirEntry*  PTTFDirEntry;
struct TTFDirEntry
{
    ULONG   Tag;        
    ULONG   Checksum;   
    ULONG   Offset;     
    ULONG   Length;     
};
#ifdef __DOXYGEN__
typedef struct TTFDirEntry  TTFDirEntry;
#endif


enum eTTTableId
{
    TTT_CMAP = 0x70616D63, 
    TTT_GLYF = 0x66796C67, 
    TTT_HEAD = 0x64616568, 
    TTT_HHEA = 0x61656868, 
    TTT_HMTX = 0x78746D68, 
    TTT_LOCA = 0x61636F6C, 
    TTT_MAXP = 0x7078616D, 
    TTT_NAME = 0x656D616E, 
    TTT_POST = 0x74736F70, 
    TTT_OS2  = 0x322F534F  
};



#define _TTT_ENTRY(fcc) _byteswap_ulong(ULONG( fcc ))

#define TTT_CVT   0x20747663 
#define TTT_FPGM  0x6D677066 
#define TTT_KERN  0x6E72656B 
#define TTT_PREP  0x70657270 
#define TTT_EBDT  _TTT_ENTRY('EBDT') 
#define TTT_EBLC  _TTT_ENTRY('EBLC') 
#define TTT_EBSC  _TTT_ENTRY('EBSC') 
#define TTT_GASP  _TTT_ENTRY('gasp') 
#define TTT_HDMX  _TTT_ENTRY('hdmx') 
#define TTT_LTSH  _TTT_ENTRY('LTSH') 
#define TTT_PCLT  _TTT_ENTRY('PCLT') 
#define TTT_VDMX  _TTT_ENTRY('VDMX') 
#define TTT_VHEA  _TTT_ENTRY('VDMX') 
#define TTT_VMTX  _TTT_ENTRY('vmtx') 

typedef struct TTFDirectory*  PTTFDirectory;
struct TTFDirectory
{
    FIXED   Version;    
    USHORT  NrTables;   
    USHORT  Range;      
    USHORT  Selector;   
    USHORT  Shift;      

    #define N_REQ_TABLES 10 
    // NOTE: There may be additional tables,
    // so look at NrTables to index correctly.

    TTFDirEntry Entry[ N_REQ_TABLES ]; 
};
#ifdef __DOXYGEN__
typedef struct TTFDirectory  TTFDirectory;
#endif

//== TTT_NAME == Names ==------------------------------------------------------

typedef struct TTFNameRec*  PTTFNameRec;
struct TTFNameRec
{
    USHORT  Platform;   
    USHORT  Encoding;   
    USHORT  Language;   
    USHORT  Id;         
    USHORT  Length;     
    USHORT  Offset;     
};
#ifdef __DOXYGEN__
typedef struct TTFNameRec  TTFNameRec;
#endif


enum eTTFPlatform
{
    TTNP_APPLE, 
    TTNP_MAC,   
    TTNP_ISO,   
    TTNP_MS     
};


enum eMSEncoding
{
    TTNE_MS_UNDEF, 
    TTNE_MS_UGL    
};


enum eNameTblIndex
{
    TTNI_COPYRIGHT,  
    TTNI_FAMILY,     
    TTNI_SUBFAMILY,  
    TTNI_FONTNAME,   
    TTNI_FULLNAME,   
    TTNI_VERSION,    
    TTNI_POSTSCRIPT, 
    TTNI_TRADEMARK,  
};

typedef struct TTFNames*  PTTFNames;
struct TTFNames
{
    USHORT  Format;     
    USHORT  NrNames;    
    USHORT  Offset;     

    TTFNameRec Names[1]; 
    // [Variable size] Storage for the actual string data.
};
#ifdef __DOXYGEN__
typedef struct TTFNames  TTFNames;
#endif

#pragma pack( pop )
#endif//ndef __TTFFile_h_incl__
// EOF