#ifndef LIBRARIES_IFF_H
#define LIBRARIES_IFF_H
/*
**
** $Id: iff.h,v 22.1 92/06/02 16:46:47 chris Exp $
** $Revision: 22.1 $
**
** $Filename: iff.h $
** $Author: Christian A. Weber $
** $Release: 22.1 $
** $Date: 92/06/02 16:46:47 $
**
** Standard header file for programs using iff.library
**
** COPYRIGHT (C) 1987-1992 BY CHRISTIAN A. WEBER, BRUGGERWEG 2,
** CH-8037 ZUERICH, SWITZERLAND.
** THIS FILE MAY BE FREELY DISTRIBUTED. USE AT YOUR OWN RISK.
**
 */

#ifndef EXEC_TYPES_H
#include <exec/types.h>
#endif

#define IFFNAME "iff.library"
#define IFFVERSION 22L						/* Current library version */

/****************************************************************************
** Error codes (returned by IFFL_IFFError())
 */

#define IFFL_ERROR_BADTASK   -1				/* IFFL_IFFError() called by wrong task */
#define IFFL_ERROR_OPEN    16				/* Can't open file */
#define IFFL_ERROR_READ    17				/* Error reading file */
#define IFFL_ERROR_NOMEM   18				/* Not enough memory */
#define IFFL_ERROR_NOTIFF   19				/* File is not an IFF file */
#define IFFL_ERROR_WRITE   20				/* Error writing file */
#define IFFL_ERROR_NOILBM   24				/* IFF file is not of type ILBM */
#define IFFL_ERROR_NOBMHD   25				/* BMHD chunk not found */
#define IFFL_ERROR_NOBODY   26				/* BODY chunk not found */
#define IFFL_ERROR_BADCOMPRESSION 28		/* Unknown compression type */
#define IFFL_ERROR_NOANHD   29				/* ANHD chunk not found */
#define IFFL_ERROR_NODLTA   30				/* DLTA chunk not found */

#ifdef IFFLIB_PRE21NAMES
#define IFF_BADTASK -1
#define IFF_CANTOPENFILE 16
#define IFF_READERROR 17
#define IFF_NOMEM 18
#define IFF_NOTIFF 19
#define IFF_WRITEERROR 20
#define IFF_NOILBM 24
#define IFF_NOBMHD 25
#define IFF_NOBODY 26
#define IFF_TOOMANYPLANES 27
#define IFF_UNKNOWNCOMPRESSION 28
#define IFF_NOANHD 29
#define IFF_NODLTA 30
#endif


/****************************************************************************
** Common IFF IDs
 */

#define IFFL_MAKE_ID(a,b,c,d) ((ULONG)(a)<<24L|(ULONG)(b)<<16L|(c)<<8|(d))
	
	/*
	** Generic IFF IDs
	 */
#ifndef ID_FORM							/* don't redefine these if iffparse.h is included */
#define ID_FORM IFFL_MAKE_ID('F','O','R','M')
#define ID_CAT  IFFL_MAKE_ID('C','A','T',' ')
#define ID_LIST IFFL_MAKE_ID('L','I','S','T')
#define ID_PROP IFFL_MAKE_ID('P','R','O','P')
#endif
	
	/*
	** Specific IFF IDs
	 */
#define ID_ANIM IFFL_MAKE_ID('A','N','I','M')
#define ID_ANHD IFFL_MAKE_ID('A','N','H','D')
#define ID_ANNO IFFL_MAKE_ID('A','N','N','O')
//#define ID_BMHD IFFL_MAKE_ID('B','M','H','D')
//#define ID_BODY IFFL_MAKE_ID('B','O','D','Y')
//#define ID_CAMG IFFL_MAKE_ID('C','A','M','G')
#define ID_CLUT IFFL_MAKE_ID('C','L','U','T')
//#define ID_CMAP IFFL_MAKE_ID('C','M','A','P')
//#define ID_CRNG IFFL_MAKE_ID('C','R','N','G')
#define ID_CTBL IFFL_MAKE_ID('C','T','B','L')
#define ID_DLTA IFFL_MAKE_ID('D','L','T','A')
//#define ID_ILBM IFFL_MAKE_ID('I','L','B','M')
#define ID_SHAM IFFL_MAKE_ID('S','H','A','M')
	
#define ID_8SVX IFFL_MAKE_ID('8','S','V','X')
#define ID_ATAK IFFL_MAKE_ID('A','T','A','K')
//#define ID_NAME IFFL_MAKE_ID('N','A','M','E')
#define ID_RLSE IFFL_MAKE_ID('R','L','S','E')
#define ID_VHDR IFFL_MAKE_ID('V','H','D','R')
	
#ifdef IFFLIB_PRE21NAMES
#define MakeID(a,b,c,d) ((ULONG)(a)<<24L|(ULONG)(b)<<16L|(c)<<8|(d))
#endif
	
	
	/****************************************************************************
	** Modes for IFFL_OpenIFF()
	 */
	
#define IFFL_MODE_READ 0
#define IFFL_MODE_WRITE 1
	
	
	/****************************************************************************
	** Modes for IFFL_CompressBlock() and IFFL_DecompressBlock()
	 */
	
#define IFFL_COMPR_NONE  0x0000			/* generic */
#define IFFL_COMPR_BYTERUN1 0x0001		/* ILBM */
#define IFFL_COMPR_FIBDELTA 0x0101		/* 8SVX */
	
	
	/****************************************************************************
	** Structure definitions
	 */
	
#ifdef _IFFLIB
	
	typedef struct
{
	BPTR File;								/* DOS file handle */
	LONG FormSize;							/* Größe des gesamten FORM */
	LONG ChunkSize;							/* Größe des aktuellen Chunks */
	LONG ChunkFPos;							/* Position im File wo dieser Chunk beginnt */
}
*IFFL_HANDLE;

#else

typedef void *IFFL_HANDLE;					/* The IFF 'FileHandle' structure */

#endif

struct IFFL_Chunk							/* Generic IFF chunk structure */
{
	LONG  ckID;
	LONG  ckSize;
	/*  UBYTE ckData[ckSize] (variable sized data) */
};

struct IFFL_BMHD							/* BMHD chunk for ILBM files */
{
	UWORD w,h;
	WORD  x,y;
	UBYTE nPlanes;
	UBYTE masking;
	UBYTE compression;
	UBYTE pad1;
	UWORD transparentColor;
	UBYTE xAspect,yAspect;
	WORD  pageWidth,pageHeight;
};

struct IFFL_ANHD							/* ANHD chunk for ANIM files */
{
	UBYTE Operation;
	UBYTE Mask;
	UWORD W;
	UWORD H;
	WORD X;
	WORD Y;
	ULONG AbsTime;
	ULONG RelTime;
	UBYTE Interleave;
	UBYTE pad0;
	ULONG Bits;
	UBYTE pad[16];
};

#ifdef IFFLIB_PRE21NAMES
#define Chunk IFFL_Chunk
#define BitMapHeader IFFL_BMHD
#define AnimHeader IFFL_ANHD
#endif

/****************************************************************************
** IFF library function prototypes (ANSI)
 */

void     IFFL_CloseIFF        ( IFFL_HANDLE );
ULONG     IFFL_CompressBlock   ( APTR, APTR, ULONG, ULONG );
BOOL     IFFL_DecodePic       ( IFFL_HANDLE, struct BitMap * );
ULONG     IFFL_DecompressBlock ( APTR, APTR, ULONG, ULONG );
void    *IFFL_FindChunk       ( IFFL_HANDLE, LONG );
struct IFFL_BMHD *IFFL_GetBMHD         ( IFFL_HANDLE );
LONG     IFFL_GetColorTab     ( IFFL_HANDLE, WORD * );
ULONG     IFFL_GetViewModes    ( IFFL_HANDLE );
LONG     IFFL_IFFError        ( void );
BOOL     IFFL_ModifyFrame     ( void *, struct BitMap * );
APTR     IFFL_NewOpenIFF      ( char *, LONG );
IFFL_HANDLE    IFFL_OpenIFF         ( char *, ULONG );
LONG     IFFL_PopChunk        ( IFFL_HANDLE );
IFFL_HANDLE    IFFL_PPOpenIFF       ( char *, char * );
LONG     IFFL_PushChunk       ( IFFL_HANDLE, ULONG, ULONG );
BOOL     IFFL_SaveBitMap      ( char *, struct BitMap *, WORD *, LONG );
BOOL     IFFL_SaveClip        ( char *, struct BitMap *, WORD *, LONG,
LONG, LONG, LONG, LONG );
LONG     IFFL_WriteChunkBytes ( IFFL_HANDLE, void *, LONG );


#ifdef IFFLIB_PRE21NAMES
IFFL_HANDLE OpenIFF(char *);
void CloseIFF(IFFL_HANDLE);
void *FindChunk(IFFL_HANDLE,LONG);
struct BitMapHeader *GetBMHD(IFFL_HANDLE);
LONG GetColorTab(IFFL_HANDLE,WORD *);
BOOL DecodePic(IFFL_HANDLE,struct BitMap *);
BOOL SaveBitMap(char *,struct BitMap *,WORD *,LONG);
BOOL SaveClip(char *,struct BitMap *,WORD *,LONG,LONG,LONG,LONG,LONG);
LONG IFFError(void);
ULONG GetViewModes(IFFL_HANDLE);
APTR NewOpenIFF(char *,LONG);
BOOL ModifyFrame(void *,struct BitMap *);
IFFL_HANDLE PPOpenIFF(char *,char *);
#endif


/****************************************************************************
** Pragmas for Lattice C V5.x
** (generated with: 'fd2pragma iff_lib.fd iff_pragmas.h')
 */

extern struct Library *IFFBase;

#ifndef NO_PRAGMAS
/*pragma libcall IFFBase IFFL_OldOpenIFF 1E 801*/
#pragma libcall IFFBase IFFL_CloseIFF 24 901
#pragma libcall IFFBase IFFL_FindChunk 2A 0902
#pragma libcall IFFBase IFFL_GetBMHD 30 901
#pragma libcall IFFBase IFFL_GetColorTab 36 8902
#pragma libcall IFFBase IFFL_DecodePic 3C 8902
#pragma libcall IFFBase IFFL_SaveBitMap 42 0A9804
#pragma libcall IFFBase IFFL_SaveClip 48 43210A9808
#pragma libcall IFFBase IFFL_IFFError 4E 0
#pragma libcall IFFBase IFFL_GetViewModes 54 901
/*pragma libcall IFFBase IFFL_OldNewOpenIFF 5A 0802*/
#pragma libcall IFFBase IFFL_ModifyFrame 60 8902
/*#pragma libcall IFFBase IFFL_PPOpenIFF 66 9802*/
/*--- functions in V21 or higher ---*/
#pragma libcall IFFBase IFFL_OpenIFF 78 0802
#pragma libcall IFFBase IFFL_PushChunk 7E 10803
#pragma libcall IFFBase IFFL_PopChunk 84 801
#pragma libcall IFFBase IFFL_WriteChunkBytes 8A 09803
#pragma libcall IFFBase IFFL_CompressBlock 90 109804
#pragma libcall IFFBase IFFL_DecompressBlock 96 109804

#ifdef IFFLIB_PRE21NAMES
#pragma libcall IFFBase OpenIFF 1e 801
#pragma libcall IFFBase CloseIFF 24 901
#pragma libcall IFFBase FindChunk 2a 0902
#pragma libcall IFFBase GetBMHD 30 901
#pragma libcall IFFBase GetColorTab 36 8902
#pragma libcall IFFBase DecodePic 3c 8902
#pragma libcall IFFBase SaveBitMap 42 0a9804
#pragma libcall IFFBase SaveClip 48 43210A9808
#pragma libcall IFFBase IFFError 4e 0
#pragma libcall IFFBase GetViewModes 54 901
#pragma libcall IFFBase NewOpenIFF 5a 0802
#pragma libcall IFFBase ModifyFrame 60 8902
/*#pragma libcall IFFBase PPOpenIFF 66 9802*/
#endif

#endif

#endif // !LIBRARIES_IFF_H