/* ttf.h -- header file that defines the top level abstraction of a True Type font, as  * well as the usual typedefs in TTF spec. * Copyright (C) 1996-1998 Li-Da Lho, All right reserved. */#ifndef __TTF_H#define __TTF_H#include <stdio.h>#include <unistd.h>#include "config.h"/* $Id: ttf.h,v 1.3 1998/07/06 06:07:01 werner Exp $ */typedef unsigned char BYTE;typedef signed char CHAR;typedef unsigned short USHORT;typedef signed short SHORT;#if SIZEOF_INT==4typedef unsigned int ULONG;typedef signed int LONG;typedef ULONG Fixed;            /* 16.16 fixed point number used for                                 * version information */#elif SIZEOF_LONG==4typedef unsigned long ULONG;typedef signed long LONG;typedef ULONG Fixed;            /* 16.16 fixed point number used for                                 * version information */#endiftypedef USHORT FUnit;typedef SHORT FWord;            /* pixel position in the unit of FUnit */typedef USHORT uFWord;typedef SHORT F2Dot14;          /* 2.14 fixed point number used for                                 * unit vectors */typedef LONG F26Dot6;           /* 26.6 fixed point number to specify                                 * pixel positions */#ifndef inlineextern inline BYTE ttfGetBYTE(FILE *fp){  int cc;  if ((cc = fgetc (fp)) == EOF)  {#if 0    if (feof(fp) != 0)      ttfError("Unexpected EOF \n");    else       ttfError("Error Getting BYTE\n");#endif  }  return (BYTE) cc;}#endifCHAR ttfGetCHAR(FILE *fp);USHORT ttfGetUSHORT(FILE *fp);USHORT ttfGetSHORT(FILE *fp);ULONG ttfGetULONG(FILE *fp);LONG ttfGetLONG(FILE *fp);Fixed ttfGetFixed(FILE *fp);FUnit ttfGetFUnit(FILE *fp);FWord ttfGetFWord(FILE *fp);uFWord ttfGetuFWord(FILE *fp);F2Dot14 ttfGetF2Dot14(FILE *fp);short ttfGetLSB16(FILE *fp);int ttfGetLSB32(FILE *fp);#include "tables.h"#include "gcache.h"#include "gstate.h"typedef struct{  BYTE opcode;  BYTE *iStream;}InstructionDef;typedef struct{  BYTE fun;  BYTE *iStream;}FunctionDef;typedef struct{  /* data for instructions */  BYTE *iStream;                /* instruction stream */  USHORT ip;                    /* instruction pointer */  USHORT insLength;             /* instruction length */  LONG *StorageArea;            /* storage area */  LONG *Stack;                  /* stack */  USHORT sp;                    /* stack pointer */  USHORT stklimit;              /* stack limit */  /* data about point size and resolution */  ULONG ppem;                   /* pixel per em */  ULONG xres;                   /* x resolution in dpi */  ULONG yres;                   /* y resolution in dpi */  F26Dot6 pointsize;            /* the point size of the font */  /* data for grahpics stat and cvt */  F26Dot6 *cvt;                 /* Control value table, scaled form cvt in                                  * TTFont */  GraphicsState gstate;         /* graphics state used for instructions */  GraphicsState gstate_init;    /* initial graphics state after fpgm and cvt                                  * programs are executed */#if 0  /* user definded instructions and functions */  InstructionDef iDef;          /* instruction definitions */  FunctionDef    fDef;          /* function definitions */#endif  int Error_State;              /* error state indicate the error */}VirtualMachine;typedef struct{  /* misc informations */  FILE *fp;  char *ttfname;  int *refcount;                /* how many instances of this font */  Fixed version;  USHORT numTables;             /* it seems not necessary to hold all the                                  * OffsetTables */  ULONG glyphOffset;            /* where the glyph table starts */  TableDirPtr dir;              /* Pointer to Table Directories */  SubTablePtr encoding;         /* `encoding' is the currently used encoding                                  * table */  USHORT numCacheElements;      /* number of glyph cache elements */  VirtualMachine vm;            /* the virtual machine */  GlyphCachePtr gcache;         /* pointer to glyph cache */  /* required tables */  CMAPPtr cmap;  HEADPtr head;  HHEAPtr hhea;  HMTXPtr hmtx;  LOCAPtr loca;  MAXPPtr maxp;  NAMEPtr name;  POSTPtr post;  OS_2Ptr os2;  /* optional tables */  FWord *cvt;                   /* control value table, not scaled yet */  USHORT cvtLength;             /* number of FWords of CVT */  BYTE *fpgm;                   /* font program */  USHORT fpgmLength;            /* number of bytes of fpgm */  BYTE *prep;                   /* cvt program */  USHORT prepLength;            /* number of bytes of prep */  /* those optional tables seem not to be necessary for a True Type font   * server */  GASPPtr gasp;  HDMXPtr hdmx;  KERNPtr kern;  LTSHPtr ltsh;  PCLTPtr pclt;  VDMXPtr vdmx;  VHEAPtr vhea;  VMTXPtr vmtx;}TTFont, *TTFontPtr;TTFontPtr ttfInitFont(char *filename);void ttfLoadFont(TTFontPtr font, ULONG offset);void ttfFreeFont(TTFontPtr font);#include "loadtable.h"#endif /* __TTF_H *//* end of ttf.h */