/*	SCCS Id: @(#)def_os2.h	3.2	93/01/19	*/
/* Copyright (c) Timo Hakulinen, 1990, 1991, 1992, 1993.	  */
/* NetHack may be freely redistributed.  See license for details. */

/*
 *	Only a small portion of all OS/2 defines are needed, so the
 *	actual include files often need not be used.  In fact,
 *	including the full headers may stall the compile in DOS.
 */

#ifdef OS2_USESYSHEADERS

# define INCL_NOPMAPI
# define INCL_DOSFILEMGR
# define INCL_DOS
# define INCL_SUB

#include <os2.h>

#else

typedef char CHAR;
typedef void VOID;

typedef unsigned char UCHAR;
typedef unsigned short USHORT;
typedef unsigned int UINT;
typedef unsigned long ULONG;
typedef unsigned char BYTE;

# ifdef OS2_32BITAPI

typedef unsigned long SHANDLE;
typedef USHORT HKBD;
typedef USHORT HVIO;

#  define CCHMAXPATHCOMP 256

#  ifdef OS2_CSET2
#   define API16 _Far16 _Pascal
#   define DAT16
#   define API32 _System
#   define KbdGetStatus KBD16GETSTATUS
#   define KbdSetStatus KBD16SETSTATUS
#   define KbdCharIn    KBD16CHARIN
#   define KbdPeek      KBD16PEEK
#   define VioGetMode   VIO16GETMODE
#   define VioSetCurPos VIO16SETCURPOS
#  else
#   define API16
#   define DAT16
#   define API32
#  endif

#  define DAT

# else /* OS2_32BITAPI */

typedef unsigned short SHANDLE;
typedef SHANDLE HKBD;
typedef SHANDLE HVIO;

#  define CCHMAXPATHCOMP 13

#  ifdef OS2_MSC
#   define API16 pascal far
#   define DAT16
#  endif

#  define DAT DAT16

# endif /* OS2_32BITAPI */

typedef USHORT * DAT16 PUSHORT;
typedef BYTE * DAT16 PBYTE;
typedef ULONG * DAT PULONG;
typedef VOID * DAT PVOID;

typedef SHANDLE HDIR;
typedef HDIR * DAT PHDIR;

typedef char * DAT16 PCH;
typedef char * DAT PSZ;

/* all supported compilers understand this */

# pragma pack(2)

typedef struct {
	UCHAR  chChar;
	UCHAR  chScan;
	UCHAR  fbStatus;
	UCHAR  bNlsShift;
	USHORT fsState;
	ULONG  time;
} KBDKEYINFO;

typedef KBDKEYINFO * DAT16 PKBDKEYINFO;

/* File time and date types */

typedef struct {
	UINT twosecs : 5;
	UINT minutes : 6;
	UINT hours   : 5;
} FTIME;

typedef struct {
	UINT day     : 5;
	UINT month   : 4;
	UINT year    : 7;
} FDATE;

# ifdef OS2_32BITAPI

typedef struct {
	ULONG oNextEntryOffset;
	FDATE fdateCreation;
	FTIME ftimeCreation;
	FDATE fdateLastAccess;
	FTIME ftimeLastAccess;
	FDATE fdateLastWrite;
	FTIME ftimeLastWrite;
	ULONG cbFile;
	ULONG cbFileAlloc;
	ULONG attrFile;
	UCHAR cchName;
	CHAR  achName[CCHMAXPATHCOMP];
} FILEFINDBUF3;

# else

typedef struct {
	FDATE  fdateCreation;
	FTIME  ftimeCreation;
	FDATE  fdateLastAccess;
	FTIME  ftimeLastAccess;
	FDATE  fdateLastWrite;
	FTIME  ftimeLastWrite;
	ULONG  cbFile;
	ULONG  cbFileAlloc;
	USHORT attrFile;
	UCHAR  cchName;
	CHAR   achName[CCHMAXPATHCOMP];
} FILEFINDBUF;

typedef FILEFINDBUF * DAT16 PFILEFINDBUF;

# endif /* OS2_32BITAPI */

typedef struct {
	ULONG  idFileSystem;
	ULONG  cSectorUnit;
	ULONG  cUnit;
	ULONG  cUnitAvail;
	USHORT cbSector;
} FSALLOCATE;

typedef struct {
	USHORT cb;
	USHORT fsMask;
	USHORT chTurnAround;
	USHORT fsInterim;
	USHORT fsState;
} KBDINFO;

typedef KBDINFO * DAT16 PKBDINFO;

typedef struct {
	USHORT cb;
	UCHAR  fbType;
	UCHAR  color;
	USHORT col;
	USHORT row;
	USHORT hres;
	USHORT vres;
	UCHAR  fmt_ID;
	UCHAR  attrib;
	ULONG  buf_addr;
	ULONG  buf_length;
	ULONG  full_length;
	ULONG  partial_length;
	PCH    ext_data_addr;
} VIOMODEINFO;

typedef VIOMODEINFO * DAT16 PVIOMODEINFO;

# pragma pack()

/* OS2 API functions */

USHORT API16 KbdGetStatus(PKBDINFO, HKBD);
USHORT API16 KbdSetStatus(PKBDINFO, HKBD);
USHORT API16 KbdCharIn(PKBDKEYINFO, USHORT, HKBD);
USHORT API16 KbdPeek(PKBDKEYINFO, HKBD);

USHORT API16 VioGetMode(PVIOMODEINFO, HVIO);
USHORT API16 VioSetCurPos(USHORT, USHORT, HVIO);

# ifdef OS2_32BITAPI
ULONG API32 DosQueryFSInfo(ULONG, ULONG, PVOID, ULONG);
ULONG API32 DosFindFirst(PSZ, PHDIR, ULONG, PVOID, ULONG, PULONG, ULONG);
ULONG API32 DosFindNext(HDIR, PVOID, ULONG, PULONG);
ULONG API32 DosSetDefaultDisk(ULONG);
# else
USHORT API16 DosQFSInfo(USHORT, USHORT, PBYTE, USHORT);
USHORT API16 DosFindFirst(PSZ, PHDIR, USHORT, PFILEFINDBUF, USHORT, PUSHORT, ULONG);
USHORT API16 DosFindNext(HDIR, PFILEFINDBUF, USHORT, PUSHORT);
USHORT API16 DosSelectDisk(USHORT);
# endif /* OS2_32BITAPI */

#endif /* OS2_USESYSHEADERS */
